@article {2214, title = {Evaluating the Therapeutic Potential of Vernonia amygdalina: A Promising Antidiabetic Agent in STZ and Nicotinamide-Induced Rat Model}, journal = {Pharmacognosy Journal}, volume = {16}, year = {2024}, month = {February 2024}, pages = {94-99}, type = {Original Article}, chapter = {94}, abstract = {

Background: Vernonia amygdalina, commonly known as bitter leaf, has been traditionally used for its potential antidiabetic properties. This study aimed to evaluate the therapeutic potential of Vernonia amygdalina extract (VAE) in ameliorating hyperglycemia using a streptozotocin (STZ) and high-fat diet (HFD)-induced rat model of diabetes. Methods: Sixty male Wistar rats were divided into six groups: normal control, diabetic control, and four treatment groups receiving different doses of VAE (100, 300, and 500 mg/kg body weight) orally for eight weeks. Diabetes was induced in rats by a single intraperitoneal injection of STZ (55 mg/kg) after four weeks of Nicotinamid feeding. Body weight, fasting blood glucose levels, HbA1c, serum insulin levels, superoxide dismutase (SOD) activity, and malondialdehyde (MDA) levels were measured. Results: Treatment with VAE significantly reduced fasting blood glucose levels in a dose-dependent manner compared to the diabetic control group (p \< 0.05). VAE administration also led to a significant decrease in HbA1c levels and an increase in serum insulin levels in a dosedependent manner (p \< 0.05). Furthermore, VAE supplementation restored SOD activity and reduced MDA levels, indicating improved antioxidant status in the treated groups (p \< 0.05). Conclusion: This study demonstrates the therapeutic potential of Vernonia amygdalina as an antidiabetic agent in the STZ and HFD-induced rat model of diabetes. VAE supplementation effectively reduced fasting blood glucose levels, improved glycemic control as indicated by reduced HbA1c levels, and enhanced insulin secretion. Moreover, VAE exhibited antioxidant activity by restoring SOD activity and reducing MDA levels. These findings suggest that Vernonia amygdalina could be a promising natural remedy for the management of diabetes. Further investigations are warranted to elucidate the underlying mechanisms and evaluate its long-term safety and efficacy in humans.

}, keywords = {Diabetes, HbA1c, Insulin, MDA, SOD, Vernonia amygdalina}, doi = {10.5530/pj.2024.16.13}, author = {Muhammad Faridz Syahrian and I Nyoman Ehrich Lister and Chrismis Novalinda Ginting} } @article {2296, title = {Evaluation of Potential Toxicity Associated with Antidiabetic Herbs in Saudi Arabia}, journal = {Pharmacognosy Journal}, volume = {16}, year = {2024}, month = {June 2024}, pages = {576-581}, type = {Original Article}, chapter = {576}, abstract = {

Introduction: Diabetes mellitus is a serious, long-lasting disease that is characterized by high blood sugar levels, leading to more severe complications involving other organ systems of the body. Diabetes is becoming more common worldwide. Managing diabetes can be complicated, but many people, especially in Saudi Arabia, often use traditional herbal medicines to treat the condition. Our study concentrates on assessing the safety of commonly used antidiabetic herbs in Saudi Arabia by examining their potential toxicity. Method: Using keywords and their variations, we conducted a systematic search of the PubMed and Google Scholar databases to find studies on treatments based on antidiabetic herbs and their toxic effects from 2014 to 2024. Result: Our study revealed that the use of medicinal plants for treating and managing diabetes along with its complications is becoming popular around the globe. These medicinal plants are also being used as primary sources of developing modern pharmaceutical antidiabetic drugs. Phytotherapy is safe to treat diabetes as herbal bioactive components act through many biological pathways. They may inhibit α-glucosidase enzyme, enhance GLUT-4 translocation, and also improve lipid profile. Conclusion: The use of natural plants having medicinal properties is popular for the treatment of diabetes. Claims of their usefulness by traditional healers are being supported by scientific evidence also. To determine the right dosage of these medicinal herbs, cytotoxicity tests or short-term experiments are done to establish doses of plants used in vitro and in vivo. Toxicity concerns are a primary reason why healthcare professionals hesitate to incorporate herbal products into the healthcare system. That{\textquoteright}s why it is necessary to screen such plants for their toxicity to differentiate pharmacological efficacy from adverse effects.\ 

}, keywords = {Antidiabetic, Diabetes, Herbal medicines, KSA, Medicinal herbs, Phytotherapy, Plant extracts, Saudi Arabia, Toxicity, Traditional}, doi = {10.5530/pj.2024.16.90}, author = {Inbaraj Susai Domnic and Prasanna Mohanabhaskaran and Imran Zaheer and Semmal Syed Meerasa and Ramaprabha Prabhakar} } @article {2418, title = {SCN9A and SCN10A Polymorphism and Therapeutic Effectiveness of Lidocaine Local Anesthetic Injection in Subjects with Diabetic Neuropathy Pain}, journal = {Pharmacognosy Journal}, volume = {16}, year = {2024}, month = {December 2024}, pages = {1259-1263}, type = {Original Article}, chapter = {1259}, abstract = {

Background: Diabetic neuropathy pain (DNP) is one of the complications experienced by more than half of the diabetic population. Treatment using lidocaine injection is one of the effective ways to manage pain in patients with DNP. Pain therapy using lidocaine locally targets the SCN9A and SCN10A genes, which encode the sodium receptors Nav1.7 and Nav1.8. The effect of lidocaine inhibits these sodium channels to reduce pain transmission. Purpose: This study aims to analyze the effect of polymorphism of genes encoding Nav1.7 and Nav1.8 on the effectiveness of lidocaine local injection therapy in patients with DNP. Methods: This study was an analytic observational study with a cross-sectional approach. A total of 63 people with DNP were genotyped for the SCN9A rs 6746030 gene and the SCN10A rs12632942 gene using Real-Time PCR/qPCR and DNA sequencing. Result: The results showed that 91.2\% and 70.6\% of the population who experienced decreased pain had the GA mutant allele in the SCN9A rs6746030 gene and the AG mutant allele in the SCN10A rs12632942 gene. The results showed a significant association of Nav1.7 and Nav1.8 gene polymorphisms with the effectiveness of lidocaine local anesthetic injection therapy in diabetic neuropathy pain patients (p \< 0.05). Conclusion: This study shows that there was an association between Nav1.7 and Nav1.8 gene polymorphisms and the effectiveness of lidocaine local anesthetic injection therapy in patients with DNP. Lidocaine injection therapy that targets the Nav1.7 and Nav1.8 sodium channels involving the SCN9A and SCN10A genes can be a therapeutic alternative for patients with DNP.

}, keywords = {Diabetes, Diabetic neuropathy pain, Nav1.7, Nav1.8, Polymorphism}, doi = {10.5530/pj.2024.16.204}, author = {I Made Subhawa Harsa and Andiani and Sulistiawati and Lilik Herawati and Hanik Badriyah Hidayati and Kuntaman} } @article {1994, title = {The Effect of Sapodilla Leaf Extract (Manilkara zapota L.) on Lipid Profiles of Alloxan-Induced Diabetic Mice}, journal = {Pharmacognosy Journal}, volume = {15}, year = {2023}, month = {April 2023}, pages = {286-289}, type = {Original Article }, chapter = {286}, abstract = {

The aim of this study is to examine the effect of sapodilla leaf extract on lipid profiles of alloxan-induced diabetic mice. This research method are 30 male mice were used as experimental animals, which were randomly divided into five groups, each group consisting of 6 mice. The division of the group is as follows: Treatment of non-diabetic mice, diabetic mice, diabetic mice by administering pioglitazone at a dose of 2 mg/kg BW, extracts of manila sapodilla leaf (M. zapota L.) dose 100 mg/kg BW and 300 mg/kg BW. Observations were made on the 14th day, after administration of sapodilla leaf extract, mice were given light anesthesia and serum lipid profiles Total Cholesterol (TC), triglycerides (TG), High-Density Lipoprotein (HDL), and Low-Density Lipoprotein (LDL) were measured using diagnostic kits (Pars Azmoon Kit) and automatic analyzer (Abbot, model Alcyon 300). The results of this study are in TC, there was a significant difference in pioglitazone and 100 mg leaf extract against all treatment groups. In TG, there was a significant difference in pioglitazone and 300 mg leaf extract against all treatment groups. In LDL, there were significant differences in the 100 mg, 300 mg leaf extract and pioglitazone, against negative control, and diabetes control. In HDL, there was a significant difference in negative control and 300 mg leaf extract, against 100 mg leaf extract, pioglitazone, and diabetes control. The conclusions of this study exhibited the ethanol extract of M. zapota leaves contains several phytochemical compounds including alkaloids, flavonoids, saponins, polyphenols, tannins, quinones, and steroids. M. zapota leaves extract (100 mg/kg and 300 mg/kg) exhibited a significant effect on improvement in lipid protein.

}, keywords = {Alloxan, Diabetes, Lipid Protein, Manilkara zapota}, doi = {10.5530/pj.2023.15.40}, author = {Tridiganita Intan Solikhah and Tania Anggreani Wijaya and Salsabila and Daffa Alice Pavita and Ragil Kusnandar Miftakhurrozaq and Hartanto Mulyo Raharjo and Maya Nurwartanti Yunita and Faisal Fikri} } @article {1781, title = {Potency of Antidiabetic Effects of the Combination of Syzygium cumini and Andrographis paniculata in Rats with High-Fat Dietand Streptozotocin-Induced Diabetes}, journal = {Pharmacognosy Journal}, volume = {14}, year = {2022}, month = {April 2022}, pages = {406-412}, type = {Research Article }, chapter = {406}, abstract = {

Andrographis paniculata (AP) and Syzygium cumini (SC) are known for their antihyperglycemic effects. However, the combined effects of these plants have not yet been assessed. This study evaluated the oral acute toxicity and in vivo antihyperglycemic effects of the extract combining AP and SC (SCAP) in rats with high-fat diet- and streptozotocin (STZ)-induced diabetes. Thirteen female DDY mice for toxicity test were divided into three groups and orally administered one dose SCAP (0, 300, or 2000 mg/kg). On day 15, animals were euthanized, their internal organs were observed, and blood samples were collected for clinical biochemistry analyses. In vivo antihyperglycemic activity was examined in male Sprague- Dawley rats-induced diabetes. Diabetic rats were assigned to once-daily oral treatment with metformin, AP, SC or SCAP for 1 week. Concerning toxicity, SCAP had no effects on liver and kidney and histology of these organs displayed no abnormalities. Blood glucose levels had a tendency to reduce in treatment groups compared with the findings in the diabetic control group. SCAP treatment protected rats against pancreatic damage. These results illustrated that the combined SCAP treatment had beneficial effects on blood glucose levels and pancreatic β-cell function, in rats-induced diabetes.

}, keywords = {Andrographis paniculata, Combination, Diabetes, Syzygium cumini}, doi = {10.5530/pj.2022.14.52}, author = {Gumilar Adhi Nugroho and Febrika Wediasari and Zahra Fadhilah and Berna Elya and Heri Setiawan and ELFAHMI} } @article {1704, title = {Alterations in Body Weight, Blood Glucose Levels, and Lipid Profiles in High-Fat Diet-Low Dose Streptozotocin-Induced Diabetic Rats}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {December 2021}, pages = {1562-1567}, type = {Original Article}, chapter = {1562}, abstract = {

Introduction: New preventive and therapeutic strategies to treat Type 2 diabetes (T2D) continue to be pursued, the complexity of this disease makes it imperative to establish preclinical animal models which must provide accurate similarities to the pathogenesis of diabetes in humans. Making a diabetic animal model using rats with high-fat diet (HFD)-streptozotocin (STZ) induction is popular because it is relatively low cost and simple. Objectives: This study aims to analyse the changes in body weight, blood glucose, and lipid profiles that occur in diabetic rat models created by induction of HFD in combination with lowdose STZ. Methods: This study used forty male Sprague-Dawley rats (200-240 g). After the adaptation period, thirty rats were fed with HFD for 28 days (DM group), while the other ten rats continued to be fed with standard feed (NC group). After then, diabetes was induced to the DM group by low-dose STZ (35 mg/kg BW). The body weight of the rats was measured before and after diet manipulation periods. Blood samples were taken before and after STZ induction to determine lipid profiles and blood glucose levels. Results: During the diet manipulation period, the HFD group experienced a significantly greater weight gain, higher blood glucose levels, and cholesterol (TC) levels. After STZ injection, rats{\textquoteright} blood glucose levels, TC, and triglycerides significantly increased. Conclusion: HFD feeding combined with a low-dose STZ effectively work to mimic specific condition that is similar to T2D, and the stability of the experimental animal conditions remains constant for up to 6 weeks.

}, keywords = {Diabetes, Diabetic animal model, High-fat diet, Insulin resistance, Low-dose streptozotocin, Stable diabetes type 2 profile.}, doi = {10.5530/pj.2021.13.199}, author = {Raysa Y. Pratiwi and Berna Elya and Heri Setiawan and Atini Solawati and Rosmalena} } @article {1682, title = {Effect of Muntingia calabura L. Leaf Extract on Blood Glucose Levels and Body Weight of Alloxan-Induced Diabetic Mice}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {November 2021}, pages = {1450-1455}, type = {Research Article}, chapter = {1450}, abstract = {

Objective: To evaluate the effect of Muntingia calabura L. leaf extract on the blood glucose level and weight of alloxan-induced diabetic mice. Methods: The mice were injected using 150mg/kg of alloxan intraperitoneally to induce diabetes. Blood glucose level was tested before alloxan injection and 5 days after injection to confirm diabetes development. M. calabura leaf extract with 100 and 300 mg/kg and 600 μg/kg of glibenclamide was given orally for 14 days. Results: The statistical results showed a significant decrease in blood glucose level, especially on day-7 and day-14 in the M. calabura leaf extract treatment group and glibenclamide treatment group compared to the model control group. There was an increase of weight on day-7 and day-14 in the M. calabura leaf extract group and a significant decrease in weight on day-7 in the glibenclamide group compared to the model control group. Conclusion: M. calabura leaf extract had a significant antidiabetic effect that can normalize the weight of alloxan-induced diabetic mice.

}, keywords = {Alloxan, Diabetes, Mice, Muntingia calabura leaf}, doi = {10.5530/pj.2021.13.184}, author = {Tridiganita Intan Solikhah and Gahastanira Permata Solikhah} } @article {1686, title = {Effect of Muntingia calabura L. Leaf Extract on Blood Glucose Levels and Body Weight of Alloxan-Induced Diabetic Mice}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {November 2021}, pages = {1450-1455}, type = {Research Article}, chapter = {1450}, abstract = {

Objective: To evaluate the effect of Muntingia calabura L. leaf extract on the blood glucose level and weight of alloxan-induced diabetic mice. Methods: The mice were injected using 150mg/kg of alloxan intraperitoneally to induce diabetes. Blood glucose level was tested before alloxan injection and 5 days after injection to confirm diabetes development. M. calabura leaf extract with 100 and 300 mg/kg and 600 μg/kg of glibenclamide was given orally for 14 days. Results: The statistical results showed a significant decrease in blood glucose level, especially on day-7 and day-14 in the M. calabura leaf extract treatment group and glibenclamide treatment group compared to the model control group. There was an increase of weight on day-7 and day-14 in the M. calabura leaf extract group and a significant decrease in weight on day-7 in the glibenclamide group compared to the model control group. Conclusion: M. calabura leaf extract had a significant antidiabetic effect that can normalize the weight of alloxan-induced diabetic mice.

}, keywords = {Alloxan, Diabetes, Mice, Muntingia calabura leaf}, doi = {10.5530/pj.2021.13.184}, author = {Tridiganita Intan Solikhah and Gahastanira Permata Solikhah} } @article {1402, title = {Metformin Potentiates the Antidiabetic Properties of Annona muricata and Tapinanthus globiferus Leaf Extracts in Diabetic Rats}, journal = {Pharmacognosy Journal}, volume = {13}, year = {2021}, month = {May 2021}, pages = {614-619}, type = {Original Article}, chapter = {614}, abstract = {

Background: There is paucity of experimental evidence on the complementary use of standard anti-diabetic drugs with herbal formulations. Materials and Methods: In this study, extracts of Annona muricata (AME) and Tapinanthus globiferus (TGE) were administered with metformin to diabetic rats in order to study the potential complementary effects. Diabetes was induced by a single intraperitoneal (i.p) injection of alloxan (150 mg/kg BW). AME and TGE (200 mg/ kg BW each) and Metformin (100 mg/kg BW) was administered to diabetic rats orally for 21 days. At the end of the study, rats were sacrificed; blood was collected for assessment of lipid profile and kidney function. Results: Treatment of diabetic rats with AME and TGE caused a significant decrease (p \< 0.05) in the concentrations of total cholesterol (TC), triglyceride (TG) and Coronary Risk Index (CRI) with a concomitant increase in High Density Lipoprotein (HDL). Similarly, urea and creatinine concentration decreased in diabetic rats administered plant extracts. Co-administration of the plant extracts with metformin significantly improved lipid profiles and kidney function relative to rats administered metformin alone. Co-administration of AME and TGE extracts with metformin produced significant improvement in biochemical indices of diabetic rats. Conclusion: The results suggest potential synergistic interaction between the plant extracts and metformin. Furthermore, this work provides scientific support for the concomitant use of the plants used in the study with orthodox drugs for the management of diabetes.

}, keywords = {Annona muricata, Diabetes, Drug interaction, Tapinanthus globiferus}, doi = {10.5530/pj.2021.13.77}, author = {Francis O. Atanu and Oghenetega J. Avwioroko and Omotayo B. Ilesanmi and Ojochenemi E. Yakubu} } @article {1141, title = {An Analytical and in-vivo Study to Evaluate the Effect of Triphala Kaṣ{\={a}}ya V{\={a}}sita Godhuma (Triticum aestivum grains soaked in Triphala Kaṣ{\={a}}ya) on its Glycemic Index compared to Raw Godhuma (Raw Triticum aestivum grains)}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {May 2020}, pages = {526-534}, type = {Original Article}, chapter = {526}, abstract = {

Diabetes is generally referred to as a Metabolic Disorder or a Lifestyle Disorder, that is mainly characterized by the symptom of Hyperglycemia caused by the defective insulin secretion, congenital or acquired. Diabetes requires management of diet and lifestyle with or without medications to keep the blood sugar under control. Foods with medium Glycemic Index (GI) is best preferred for Diabetics, because high GI foods will rapidly increase the blood sugar level, and low GI will cause grave health issues. In practice, wheat is the highly recommended diet for diabetics as the GI is medium in comparison to rice that belongs to a high GI group. But wheat causes digestive problems, and flatulence in addition to the Gluten allergy that many people suffer from. However in Ayurveda, the Classical Text Aṣṭ{\={a}}ṅga Hṛdaya (AH) mentions in Prameha Cikitsa Adhy{\={a}}ya (Chapter on Treatment of Diabetes) that Godhuma (grains of Wheat - Triticum aestivum L) has to be kept soaked in Triphala Kaṣ{\={a}}ya (Decoction prepared with the fruits of Terminalia chebula, T. bellerica and Phyllanthus emblica) and then dried and powdered before being used as a diet for a diabetic. The grains of Godhuma were kept soaked in Triphala Kaṣ{\={a}}ya and then dried and powdered. A comparative analytical study was done for the two samples- treated wheat grains (Triphala Kaṣ{\={a}}ya V{\={a}}sita Godhuma) and untreated/raw wheat grains. An In vivo study was also done to assess the GI value of both the samples of wheat. The analytical and In vivo study results prove that while the GI is still maintained within medium range, the allergen gluten is completely eliminated, total fat and total protein have reduced while still maintaining the nutritive value, in the treated sample when compared to the raw sample. Based on the results obtained from the analytical and in-vivo study, it can be concluded that Triphala Kaṣ{\={a}}ya V{\={a}}sita Godhuma becomes even more compatible and healthy for a diabetic, in gluten allergy and discomforts caused by wheat consumption, in comparison to the untreated wheat grains.

}, keywords = {Ayurveda, Diabetes, Gluten, Glycemic index, Godhuma, Prameha, Triphala kaṣ{\={a}}ya}, doi = {10.5530/pj.2020.12.80 }, author = {Sujithra M and Vimala KS and Sabitha M and Priya S} } @article {1300, title = {In vitro Antioxidant and Antidiabetic Potential of Crude Extracts from the Seed Coat and Fruit Pulp of Strychnos madagascariensis}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {November 2020}, pages = {1504-1511}, type = {Original Article}, chapter = {1504}, abstract = {

Diabetes mellitus remains a global health issue despite the advance in orthodox medicine. This study investigated the in vitro antioxidant and antidiabetic potential of crude extracts from the seed coat and pulp of Strychnos madagascariensis. The phytochemical screening was carried out using standard protocols. Different extracts were prepared from the fruit parts by maceration using methanol, n-hexane, ethyl acetate, and water for antioxidant and antidiabetic assays, and their percentage yield was calculated. The antioxidant potential of the extracts was determined using 2,2{\textquoteright}-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid (ABTS) and 2{\textquoteright}2- diphenyl-1-picrylhydrazyl (DPPH). Antidiabetic activities of the extracts were investigated using α-amylase, α-glucosidase, and pancreatic lipase assays. Terpenoids, alkaloids and cardiac glycosides were present in both the fruit parts. However, saponin present in the fruit pulp was absent in the seed coat (testa). The percentage yields are as follows; water \> ethyl acetate \> hexane \> methanol (seed coat) and methanol \> water \> ethyl acetate \> hexane (fruit pulp), respectively. The crude extracts scavenged ABTS and DPPH radicals in different degrees. The aqueous extract of the pulp and seed coat (testa) showed significant (P \< 0.05) higher scavenging activity against ABTS (IC50; 0.012 and 0.006 mg/ml) and DPPH (IC50; 0.06 mg/ml and 0.064 mg/ml) radicals than other extracts. The crude extracts inhibited α-amylase, α-glucosidase, and pancreatic lipase. The aqueous and methanol extracts of the fruit parts showed better amylase inhibitory activity than other extracts. The aqueous extract of the seed coat (IC50; 0.0785 mg/ml) showed the highest glucosidase inhibitory activity. In addition, methanol extract of the seed coat (IC50; 0.069 mg/ml) exhibited the highest inhibitory activity on pancreatic lipase compared to the extracts in other solvents. Hence, the aqueous and methanol crude extracts of Strychnos madagascariensis seed coat and fruit pulp could be used in the preparation of nutraceutical products for managing diabetic mellitus.

}, keywords = {Alkaloids, Diabetes, Hyperglycaemia, Hyperlipidaemia, Phytochemicals}, doi = {10.5530/pj.2020.12.206}, author = {Michael Osawemi Oboh and Foluso Oluwagbemiga Osunsanmi and Godfrey Elijah Zharare and Rebamang Anthony Mosa and Michael Chukwuka Ojo and Andrew Rowland Opoku} } @article {1062, title = {Phytochemical Analysis and Anti-diabetic Activity of Leaf extract of Psydrax horizontalis Schum and Thonn (Rubiaceae)}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {February 2020}, pages = {95-102}, type = {Research Article}, chapter = {95}, abstract = {

Introduction: Rubiacaeae is a large family of flowering plants of 630 genera with over 13000 species widely distributed in the tropical and warm regions of the world. The Psydrax genus has been reported to have various pharmacological activities. Based on ethno-pharmacological information, Psydrax horizontalis Schum. and Thonn. (Bridson) locally known as {\textquotedblleft}Akata-ike{\textquotedblright} in Nsukka is used in the management of diabetes in South-eastern Nigeria. However as at the time of this research, no previous work has been done to investigate its phytochemical constituents and anti-diabetic activity. Methods: The methanol extract (ME) obtained by maceration was analysed for phytochemicals present using standard procedures. Alloxan monohydrate at 150 mg/Kg was used to induce diabetes. Acute toxicity test was done using the Lorke{\textquoteright}s method. The normoglycemic and alloxan-induced groups of twenty animals each were treated orally with 100, 200 and 400 mg/Kg of ME; 5 mg/Kg of glibenclamide and 2 mL/kg of 3\% Tween 80 as the controls. The fasting blood glucose concentrations were monitored at 0, 1, 3 and 6 h, as well as 1st, 3rd and 5th day. Results: Phytochemical screening revealed the presence of glycosides, alkaloids, tannins, flavonoids, steroids, saponins and terpenoids. Median lethal dose was greater than 5000 mg/kg. In the alloxan-induced diabetic rats, significant activity at p\<0.01 on the 6th hour was recorded at doses 100, 200 and 400 mg/Kg ME on day 3. Conclusion: The ME of Psydrax horizontalis possesses significant anti-diabetic activity in the alloxan-induced diabetic rats. The results obtained validate its traditional use in management of diabetes.

}, keywords = {Alloxan monohydrate, Diabetes, Extraction, Flavonoids}, doi = {10.5530/pj.2020.12.15}, author = {Onyekere Peculiar Feenna and Odoh Uchenna Estella and Ezugwu Christopher Obodike} } @article {1218, title = {Potential Test of Nephropathy Sonchus arvensis L. Leaves on Male Rats (Rattus norvegicus) Diabetes Mellitus}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {August 2020}, pages = {1115-1120}, type = {Research Article}, chapter = {1115}, abstract = {

This study aims to determine the type of secondary metabolites compounds of the ethanol Sonchus arvensis\ L leaves extract, the effect of ethanol Sonchus arvensis L leaves extracts the levels of blood glucose and a histopathology picture male white rat induced by streptozotocin. This study used 30 males white rats which were divided into 6 groups, namely the control of normal, negative control, positive control, doses of 200, 300 and 400 mg/kg BW. Results of the study showed that the ethanol Sonchus arvensis L. leaves extracts contained compounds of alkaloids, flavonoids, phenols, saponins and tannins. Sonchus arvensis L ethanol extract at a dose of 300 mg/kg BW is an effective dose in reducing blood glucose levels with an average value of decreasing blood glucose levels 101.6 mg / dL and has an effect on the regeneration of renal tubular cells with an effective dose is 300 mg / kg body weight with an average damage value of 0.28.

}, keywords = {Diabetes, Leaf Sonchus arvensis L, Renal, Tubular}, doi = {10.5530/pj.2020.12.158}, author = {Joni Tandi and I Nyoman Edi Sutrisna and Mentari Pratiwi and Tien Wahyu Handayani} } @article {961, title = {Aloe Vera Peel Extract Administration Increased Antioxidant Enzyme Levels of Serum and Seminal Plasma in Type 2 Diabetic Rats}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {September 2019}, pages = {962-967}, type = {Original Article}, chapter = {962}, abstract = {

Background: Diabetes mellitus (DM) is considered as a complex metabolic disorder characterized by hyperglycemia. Aim: The present study aimed to evaluate the effect of Aloe vera peel extract on the antioxidant levels of serum and seminal plasma of type 2 diabetic rats. Materials and Methods: Male Wistar rat was injected by 65 mg/kg streptozotocin (STZ) combined with 230 mg/kg of Nicotinamide acid (NA) intraperitoneally. The rats were declared to have diabetic with fasting blood glucose level \> 200 mg/dl 72 hours after induction. Diabetic rat samples were divided into four groups, control group (diabetes without treatment) and three groups were treated by Aloe vera peel extracts orally: 100 mg (P.1), 200 mg (P.2), and 400 mg/kg body weight (P.3), respectively. Antioxidant levels of serum and seminal plasma, including superoxide dismutase (SOD), catalase (CAT) and glutathione (GSH) were examined after 28 days of treatment. Results: The levels of SOD, CAT, and GSH in the group receiving Aloe vera peel extract were statistically significant (p \<0.05) higher than the control. There were also significant differences between the dose variations group. Conclusion: Aloe vera peel extract can significantly increase antioxidant levels in serum and seminal plasma of type 2 diabetic mice.

}, keywords = {Aloe vera peel extract, Antioxidants, Diabetes, Seminal Plasma, Serum}, doi = {10.5530/pj.2019.11.152}, author = {Wulan Christijanti and Achmad Zulfa Juniarto and Lisyani B. Suromo} } @article {1009, title = {Comparative Study of the Effects of Annona muricata and Tapinanthus globiferus Extracts on Biochemical Indices of Diabetic Rats}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {October 2018}, pages = {1365-1370}, type = {Research Article}, chapter = {1365}, abstract = {

Introduction: Annona muricata and Tapinanthus globiferus (mistletoe) are medicinal plants used in traditional medicine to combat an array of human diseases. However, there is dearth of scientific prove for the activity of these plants in the management of non-infectious human diseases such as cancer, insomnia, hypertension, ulcers and diabetes. Method: The present study was designed to assess comparatively the effects of methanol extracts of Annona muricata (AME) and Tapinanthus globiferus (TGE) on biochemical indices of alloxan induced diabetic rats. The animals were allocated to eight (8) groups, group I were normal non-diabetic rats, group II (diabetic untreated group), group III treated with metformin alone, groups IV \& V were diabetic rats treated with AME at dose of concentration 200 mg/kg BW \& 400 mg/kg BW respectively, groups VI \& VII were diabetic rats treated with 200 mg/kg BW \& 400 mg/kg BW of TGE respectively. Group VIII were diabetic rats treated with AME + TGE at concentration of 200 mg/kg BW each. Concentrations of serum total cholesterol (TC), high density lipoprotein (HDL), triglyceride (TG) of alloxan diabetic rats, creatinine and urea were assayed after 21 days of the respective treatments. Results: Diabetic untreated rats had significant increase p\<0.05 in TC, TG, urea and creatinine compared to normal control group as opposed to the significant decrease observed for HDL in diabetic rats. However, treatment of diabetic rats with AME and TGE significantly suppressed (p\<0.05) the concentrations of TC, TG and creatinine when compared with the diabetic untreated rats. A similar trend was observed for the calculated atherogenic index of treated rats when compared with diabetic untreated rats. Interestingly, co-administration of AME + TGE improved the biochemical indices of diabetic rats better than using each plant separately. Conclusion: The results of this study suggest that AME and TGE could offer some benefits in the management of diabetic complications especially with regard to cardiac and renal health.

}, keywords = {Alloxan, Annona muricata, Diabetes, Mistletoe, Tapinanthus globiferus}, doi = {10.5530/pj.2019.11.211}, author = {Atanu FO and Avwioroko OJ and Ilesanmi OB and Oguche M} } @article {870, title = {Effect of Porana paniculata Whole Plant on Blood Glucose Levels and Lipid Profile of STZ Induced Diabetic Rats}, journal = {Pharmacognosy Journal}, year = {2019}, month = {March 2019}, pages = {xx-xx}, type = {Original Article}, chapter = {xx}, abstract = {

Background: To establish the antidiabetic potential of Porana paniculata whole plant belongs to Convolvulaceae family. Methods: Extraction and preliminary phytochemical screening were conducted by standard methods. Antidiabetic activity was evaluated by streptozotocin induced diabetic rats where the hydroalcoholic extract of plant was administered orally at a dose of 250 and 500 mg/kg for 30 days. Blood glucose levels were estimated at 1st, 10th, 20th and 30th day of study. Lipid profile was studied 30th day of study and body weight of the animals was measured at day 1 and 30. Results: Plant extract significantly (p\<0.01) reduced the blood glucose levels at both the tested dose levels of 250 and 500 mg/kg. The lipid profile was estimated in which the plant extract showed significant improved in both tested dose level that is 250 and 500 mg/kg. The body weight of the animals under study was also estimated on day 1 and 30 in which a good control was observed by the plant extract. Conclusion: Antidiabetic activity of Porana paniculata whole plant extract may be due to the presence of various phytoconstituents. Present study gives a scientific evidence for the folklore claim of the plant under study for its use in diabetes.

}, keywords = {Diabetes, Folklore, lipid profile, Porana paniculata, Streptozotocin}, doi = {10.5530/pj.2019.11.xx}, author = {Sanjeeva Kumar A and Raveendra Reddy Juturu and Rama Mohan Gupta Vankadari} } @article {838, title = {Effect of Porana paniculata Whole Plant on Blood Glucose Levels and Lipid Profile of STZ Induced Diabetic Rats}, journal = {Pharmacognosy Journal}, year = {2019}, month = {March 2019}, pages = {xx-xx}, type = {Original Article}, chapter = {xx}, abstract = {

Background: To establish the antidiabetic potential of Porana paniculata whole plant belongs to Convolvulaceae family. Methods: Extraction and preliminary phytochemical screening were conducted by standard methods. Antidiabetic activity was evaluated by streptozotocin induced diabetic rats where the hydroalcoholic extract of plant was administered orally at a dose of 250 and 500 mg/kg for 30 days. Blood glucose levels were estimated at 1st, 10th, 20th and 30th day of study. Lipid profile was studied 30th day of study and body weight of the animals was measured at day 1 and 30. Results: Plant extract significantly (p\<0.01) reduced the blood glucose levels at both the tested dose levels of 250 and 500 mg/kg. The lipid profile was estimated in which the plant extract showed significant improved in both tested dose level that is 250 and 500 mg/kg. The body weight of the animals under study was also estimated on day 1 and 30 in which a good control was observed by the plant extract. Conclusion: Antidiabetic activity of Porana paniculata whole plant extract may be due to the presence of various phytoconstituents. Present study gives a scientific evidence for the folklore claim of the plant under study for its use in diabetes.

}, keywords = {Diabetes, Folklore, lipid profile, Porana paniculata, Streptozotocin}, doi = {10.5530/pj.2017.4.x} } @article {836, title = {A Novel Poly-herbal Formulation Hastens Diabetic Wound Healing with Potent Antioxidant Potential: A Comprehensive Pharmacological Investigation}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {February 2019}, pages = {324-331}, type = {Original Article}, chapter = {324}, abstract = {

Objective: Currant investigation was aimed to evaluate the wound healing and antioxidant potentials of the novel Poly-herbal Formulation (PHF) in diabetic rat{\textquoteright}s models and in-vitro antioxidant assays respectively. Methods: The wound models viz., excision, incision and dead space by using wistar strain albino rats were adopted for this investigation. The free radical scavenging assays were employed for investigation of Antioxidant potential in poly herbal formulation. The constraints studied for assessment of wound repair were percentage closing percentage of wound, tensile strength of repaired tissue, breaking strength of granulation tissue and valuation of hydroxyproline content on dried tissue. The histopathological sections of granulation tissues obtained in dead space wound model were studied for the distribution of collagen and other histopathological changes. Four groups were used in this study with six animals each. Group I and Group II acts as normal control and diabetic control whereas Group III and Group IV was used as glibenclamide treated (1mg/kg b.w.) and PHF (500 mg/kg b.w.) treated group respectively. On the other hand the various antioxidant assays like DPPH, scavenging assays, hydrogen peroxide assay etc. were investigated. Results: The PHF has been significantly healing the wounds in diabetic rats within 18 days, while diabetic control rats healed the wound about 86.12\% in the same conditions and time. The wound breaking strength and histopathological studies of healed skin was signified the results. Significant (p\<0.01) increase in wound breaking strength as well as epithelialization and the level of hydroxyproline was observed in PHF treated animals comparison with diabetic control group. PHF has also shown significant antioxidant potential in in-vitro assays. Conclusion: All these investigation indicates the significant wound healing and antioxidant potential of PHF in the experimental animal groups in diabetic condition.

}, keywords = {Antioxidant, Diabetes, Poly herbal formulation, Streptozotocin, Wound model}, doi = {10.5530/pj.2019.11.48}, author = {Pulak Majumder and M Paridhavi} } @article {791, title = {Phytochemical Study and Biological Activities of Hydro-Alcoholic Extract of the Leaves of Bridelia ferruginea Benth and its Fractions}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {January 2019}, pages = {141-145}, type = {Original Article}, chapter = {141}, abstract = {

Context and purpose: The roots of B. ferruginea are used in traditional Togo medicine in the treatment of diabetes. Studies have shown that leaves have a low antihyperglycemic effect. This study aims to improve the effect of leaves. Methods: The hydroalcoholic extract of the leaves underwent a fractionation (separation in cold alcohol) and an OGTT (Oral Glucose tolerance test) on healthy mice, a phytochemical screening and antioxidant tests (in vitro: DPPH and ex vivo: AAPH) were performed on the extract and its fractions. Results: Phytochemical screening of the extract showed the presence of phenols, flavonoids and condensed tannins as well as the absence of condensed tannins, alkaloids, saponosides and anthracene derivatives. The extract also showed antioxidant activity. The supernatant fraction showed antihyperglycemic activity at 100 mg / kg in the 30th and 60th after glucose administration. Phytochemical screening of the supernatant revealed the presence of phenols, flavonoids and condensed tannins. The supernatant also showed more pronounced antioxidant activity than the total extract. Conclusion: In view of these results, the most active fraction obtained by the separation technique in cold alcohol is the supernatant.

}, keywords = {Antioxidant, Bridelia ferruginea, Diabetes, Fractionation, OGTT}, doi = {10.5530/pj.2019.1.23}, author = {Batomayena Bakoma and Sabrina Sanvee and Kossi Metowogo and Yao Potchoo and Kwashie Eklu gadegbeku and Kodjo Aklikokou and Menssanvi Gbeassor} } @article {813, title = {Pteleopsis suberosa Engl. and Diels (Combretaceae) aqueous stem bark extract extenuates oxidative damage in streptozotocin-induced diabetic Wistar rats}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {January 2019}, pages = {183-190}, type = {Original Article}, chapter = {183}, abstract = {

Context: Pteleopsis suberosa Engl. and Diels (Combretaceae) is an ethnomedicinally valued deciduous shrub with significant therapeutic application against diabetes in West Africa. Aims: This study evaluated the hypoglycaemic and antioxidant activity of its aqueous stem bark extract (PSAE) over a 15-day experimental period in streptozotocin (STZ)-challenged diabetic rats. Methods and Material: STZ-induced diabetic rats were administered 50, 100 and 200 mg/kg body weight of the extract once daily and the blood glucose levels were monitored for 15 days. The bioactive constituents of PSAE were analyzed using Gas Chromatography- Mass Spectrometry (GC-MS) technique. Results: Treatment with PSAE markedly (p\< 0.05) ameliorated the concentrations of blood glucose and improved the lipid metabolism imbalance in the diabetic animals. Also, while PSAE significantly (p\<0.05) improved glycogen and glutathione (reduced) levels as well as glucose-6-phosphate dehydrogenase, superoxide dismutase and catalase activities, the concentrations of glucose and malondialdehyde coupled with the activity of α-amylase were significantly reduced in the liver of PSAE-administered diabetic animals when compared with those of the normal control and untreated diabetic groups. The observed improvements could be associated with the phytoconstituents of PSAE as evident from the results of the GC-MS analysis. Put together, the elicited effects compared favorably well with metformin (a standard hypoglycemic drug) and are suggestive of antidiabetic and antioxidant capabilities of the extract. Conclusion: The scope of the data presented in this study indicates that the extract ameliorated streptozotocin-induced diabetes in rats and it is suggested to be mediated via antioxidant and concerted blood glucose lowering actions.

}, keywords = {Antioxidant, Arjunglycoside, Diabetes, Glucose-6-phosphate dehydrogenase, Hyperglycaemia, Pteleopsis suberosa}, doi = {10.5530/pj.2019.1.30}, author = {Aladodo Abimbola Raliat and Sabiu Saheed and Sulyman Olarewaju Abdulhakeem} } @article {622, title = {Hydroalcoholic and Alkaloidal Extracts of Murraya koenigii(L.) Spreng Augments Glucose Uptake Potential against Insulin Resistance Condition in L6 Myotubes and Inhibits Adipogenesis in 3T3L1 Adipocytes}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {June 2018}, pages = {633-639}, type = {Original Article}, chapter = {633}, abstract = {

Background: Murraya koenigii, commonly known as \“curry leaves\” is native to India. The highly valued part of the plant is the leaves which possess various biological activities. Objective: The present study aimed to investigate the antidiabetic effect of Murraya koenigii (MK) leaf extracts, of two different solvent ratios. Materials and methods: 70\% hydroalcoholic and alkaloidal extracts of MK leaves were prepared by cold maceration method. Preliminary phytochemical analysis was carried out for both the extracts. In vitro anti diabetic activity was screened by inhibitory action on \α \– amylase, \α \– glucosidase enzymes. Further, the 70\% hydroalcoholic and alkaloidal extracts were assessed for glucose uptake potential, anti - adipogenic property, as well as inhibitory activity on diabetes associated complications. HPTLC quantification of major phytoconstituent was carried out. Results: The study showed presence of various phytoconstituents such as, polyphenols, alkaloids, tannins, reducing sugars etc. The 70\% hydroalcoholic and alkaloidal extracts of MK leaves exhibited \>90\% inhibition against carbohydrate metabolising enzymes compared to aqueous and absolute alcohol extracts. Both the extracts showed enhanced glucose uptake in L6 myotubes attenuating the effect of Palmitate induced insulin resistance. Significant inhibition on adipogenesis was exerted by both 70\% hydroalcoholic and alkaloidal extracts of MK leaves. Besides, marked inhibition of advanced glycation end products was exhibited by the extracts. HPTLC quantification analysis of the aforementioned extracts showed the presence of major phytoconstituent, Mahanine, in it. Conclusion: The results of the present study showed that MK possesses significant antidiabetic property and also exhibited considerable effect in preventing diabetes associated complications. The potent antidiabetic activity of MK could be attributed to the presence of Mahanine, the major active constituent, which is a carbazole alkaloid.

}, keywords = {complications, Diabetes, glucose uptake, L6 myotubes, Mahanine, α - amylase}, doi = {10.5530/pj.2018.4.104}, url = {http://fulltxt.org/article/642}, author = {Parameswari Royapuram Parthasarathy and Janani Murthy and Dinesh Murugan Girija and Srivani Telapolu and Chamundeeswari Duraipandian and Thyagarajan Sadras Panchatcharam} } @article {640, title = {Indonesian Herbal SGLT2 Inhibitor Discovery through Pharmacophore-Based Virtual Screening}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {June 2018}, pages = {803-807}, type = {Original Article}, chapter = {803}, abstract = {

Objective: Sodium-glucose cotransporter 2 (SGLT2) inhibitor had been evaluated in clinical trials as the basic strategy of hyperglycemia handling in diabetes. However, because of SGLT2 inhibitors is the new class of oral antidiabetic, it is rare to be found in Indonesia, and it is costly. This study was intended to find compounds from Indonesian herbal database that show capability to be used as SGLT2 inhibitors through a pharmacophore-based virtual screening approach. Methods: The SGLT2 inhibitor pharmacophore models were made from 10 training sets of SGLT2 ligand inhibitors using the Ligand Scout 4.1.5. Ten pharmacophore models which had been made were validated using test set and decoy set methods to know how the performance of pharmacophore model worked. Virtual screening were then applied to the best pharmacophore model. Results: The model-1 pharmacophore was the best model, with values of 0.9080, EF1\% = 56.5, EF5\% = 56.5 and AUC100\% = 0.87 which served as model for virtual screening. Model-1 consisted of one hydrophobic interaction, one aromatic ring, four hydrogen bond donors and five hydrogen bond acceptors. Virtual screening showed three compounds (Hits) with best pharmacophore fit scores according to model-1 among 1377 compounds, they were vitexin = 113.62; cucumerin A = 112.62; and cucumerin B = 113.51. Conclusion: These results showed that vitexin, cucumerin A, and cucumerin B potentially have activity as an SGLT2 inhibitor.

}, keywords = {Diabetes, Pharmacophore, SGLT2 Inhibitor, Virtual Screening}, doi = {10.5530/pj.2018.4.136}, url = {http://fulltxt.org/article/674}, author = {Rezwendy R and Rezi Riadhi Syahdi and Arry Yanuar} } @article {511, title = {Pharmacodynamic and Pharmacokinetic Interactions of Piperine on Gliclazide in Animal Models}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {January 2018}, pages = {221-225}, type = {Original Article}, chapter = {221}, abstract = {

Back Ground: The objective of the present study was to find out the pharmacodynamic and pharmacokinetic interactions of piperine on gliclazide in rats and rabbits. Methods: Influence of piperine on the activity of gliclazide was determined by conducting single- and multipledose interaction studies in rats (normal and diabetic) and diabetic rabbits. Blood samples collected at predetermined time intervals from experimental animals were used for the estimation of glucose and insulin levels by using automated clinical chemistry analyzer and radioimmunoassay method, respectively. \β-cell function was determined by homeostasis model assessment. Additionally, serum gliclazide levels in rabbits were analyzed by highperformance liquid chromatography. Results: Gliclazide showed significant reduction in blood glucose levels in diabetic rats and rabbits. Similarly, piperine also showed significant reduction in blood glucose levels in animals. Additionally, , samples analyzed from all time points in combination with piperine showed peak reduction in blood glucose in diabetic rats and rabbits. The pharmacokinetics of gliclazide was also altered by single- or multiple-dose piperine treatments in rabbits. Conclusion: The interaction of piperine with gliclazide upon single and multiple-dose treatment was pharmacodynamic and pharmacokinetic in nature, indicating the need for periodic monitoring of glucose levels and dose adjustment as necessary when this combination is prescribed to diabetic patients.

}, keywords = {Diabetes, Drug interaction, Gliclazide, Piperine}, doi = {10.5530/pj.2018.2.38}, url = {http://fulltxt.org/article/468}, author = {Umachandar Lagisetty and Habibuddin Mohammed and Sivakumar Ramaiah} } @article {227, title = {Toxicology and Oral glucose Tolerance Test (OGTT) of Thai Medicinal Plant Used for Diabetes controls, Phyllanthus acidus L. (EUPHORBIACEAE)}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {December 2016}, pages = {58-61}, type = {Original Article}, chapter = {58}, abstract = {

Aim: The present study aimed to investigate toxicity and oral glucose tolerance test (OGTT) of Phyllanthus acidus leaf extract (PAE) on Wistar rat. Methods: PAE was prepared and administered orally to experimental animals used. The extract was tested for toxicity in rats at a dose of 0, 1,000, 1,500 and 2,000 mg/kg body weight p.o once daily for 14 days. The hypoglycemic effects of PAE on normal rats and orally glucose-induced hyperglycemic rats were compared with distilled water and glibenclamide. A single dose (250 mg/kg body weight) of PAE was administered and blood glucose level was obtained by pricking the tail vain using glucometer at time -30, 0, 30, 60, 120 and 240 minutes. Results: All doses of the extract did not exert any sign or symptom of toxicity and the dead rat was not found. The body weight, white blood cell (WBC), mean corpuscular volume (MCV), platelet (PLT), plateletcrit (PCT), mean platelet volume (MPV), platelet distribution width (PDW), blood chemistry, blood urea nitrogen (BUN), creatinine, alkaling phosphatase (ALP) and organ weight of liver were not significantly different between control and treated rats. However, red blood cell (RBC), hematocrit (HCT), lymphocyte (LYM), and hemoglobin (Hb) at a dose 1,500 mg./kg body weight were significantly lower than those in the control group. The blood glucose levels of PAE treated groups were not different with control and Glybenclamide treated. Conclusion: The findings of the present study can be concluded that the PAE are practically non-toxic at a lower dose.

}, keywords = {Blood glucose, Diabetes, Medicinal plant, Phyllanthus acidus, Toxicity}, doi = {10.5530/pj.2017.1.11}, author = {Napapach Chaimum-aom and Sanong Chomko and Chusri Talubmook} } @article {211, title = {Antioxidant and Hypoglycemic Activities of Clausena anisata (Willd.) Hook F. Ex Benth. Root Mediated Synthesized Silver Nanoparticles}, journal = {Pharmacognosy Journal}, volume = {8}, year = {2016}, month = {September 2016}, pages = {579-586}, type = {Original Article}, chapter = {579}, abstract = {

The present study was carried out to examine the hypoglycemic effect of Silver Nanoparticles (SNPs) using ethanolic root extract of Clausena anisata (Willd.) Hook. f. ex Benth. A cost effective and eco friendly technique for green synthesis of SNPs from 1mM AgNO3 solution through the root extract was carried out. The biosynthesized SNPs were characterized using UV spectrophotometry, Field Emission Scanning Electron Microscopy (FESEM), X-ray Diffraction analysis (XRD), Energy Dispersive Spectroscopy (EDS) and Fourier transform infra-red (FTIR) spectrometry. DPPH assay was done to determine the antioxidant activity and for in vitro hypoglycemic activity glucose uptake by yeast cells, alpha amylase inhibition assay, adsorption capacity and glucose diffusion assay was performed. The SNPs of ethanolic root extract were found to be spherical in shape and up to 32.75 nm average in size. They showed alpha amylase inhibitory activity of 83.60\% at 500 g/ml. The glucose uptake by yeast cells was found to increase with an increase in concentration. The maximum glucose uptake was found to be 69.51\% at 10mM concentration. The molar concentration of glucose was directly proportional to the glucose binding capacity of extracts.The rate of glucose diffusion across the membrane was found to increase from 30 to 180 minutes. The DPPH scavenging activity was found to be potent (74.07\%) at 500 g/ml. The hypoglycemic effect exhibited by the SNPs was revealed by simple in vitro model of yeast cells, mediated by glucose adsorption, increasing glucose diffusion and glucose transport across the cell membrane.

}, keywords = {antioxidant activity, C. anisata, Diabetes, Glucose and Silver nitrate, Silvernanoparticles}, doi = {10.5530/pj.2016.6.10}, author = {Arsia Tarnam Yakoob and Nargis Begum Tajuddin and Muhammad Ilyas Mohammed Hussain and Shilu Mathew and Archunan Govindaraju and Ishtiaq Qadri} } @article {83, title = {Anti-diabetic Properties of Thymoquinone is unassociated with Glycogen Phosphorylase Inhibition}, journal = {Pharmacognosy Journal}, volume = {7}, year = {2015}, month = {01/2015}, pages = {406-410}, type = {Original Article}, chapter = {406}, abstract = {

Background: Nigella sativa L. (Black seed), is commonly used by traditional healers as a remedy for more than four thousand years. The antidiabetic property of N. sativa seeds oil is attributable to the presence of Thymoquinone (TQ). On the other hand many studies have been designed to investigate the possible effects of the TQ in Streptozotocin (STZ) and nicotinamide (NA)-induced diabetes in rats. Aim of the study: The aim of this study was to elucidate the mechanisms underlying the glucose lowering effects of thymoquinone. Methods: In vitro and in silico using glycogen phosphorylase (GPa) enzyme assay and docking tools were used. Results: Oral administration of TQ for 60 days, dose dependently improved the glycemic status in STZ-NA induced diabetic rats. GPa activity was measured in the direction of glycogen synthesis by the release of phosphate from glucose-1-phosphate. TQ at a concentration of 0.05 Mm inhibits GPa activity by only 14.9\%. Conclusion: These results show that TQ at 60 mg/kg b.w is associated with potential antihyperglycemic effects. Furthermore, anti-diabetic properties of TQ are unassociated with glycogen phosphorylase inhibition.

}, keywords = {Diabetes, Docking, Enzyme, Glycogen phosphorylase inhibition, Streptozotocin, Thymoquinone.}, doi = {10.5530/pj.2015.6.16}, author = {Nahid Mahmoud Hassan El-Ameen and Manal Mohamed Elhassan Taha and Siddig Ibrahim Abdelwahab and Asaad Khalid and Fatima Elfatih and Mona Awad Kamel and Bassem Yousif Sheikh} } @article {1445, title = {In vitro study of anti-glycation and radical scavenging activities of the essential oils of three plants from Morocco: Origanum compactum, Rosmarinus officinalis and Pelargonium asperum}, journal = {Pharmacognosy Journal}, volume = {7}, year = {2015}, month = {8th Jan, 2015}, pages = {124-135}, type = {Original Article}, chapter = {124}, abstract = {

Introduction: We have carried out our study on the chemical composition; anti-glycation andradical scavenging activities of Origanum compactum, Rosmarinus officinalis and Pelargonium asperum essential oils (EO) that were harvested in the northeast of Morocco. These plants have been traditionally used in medicine as a chief ingredient of many polyherbal formulations for the treatment of several pathologies. Method: The phytochemical study was revealed by GC-MS. The protein glycation inhibitory activity of EO extracted from these plant tissues was evaluated in vitro using the model system of bovine serum albumin and methylglyoxal. The measure of DPPH\• radical reducing power was used to evaluate the antiradical activity. To test each fraction, we used the IC50 value previously obtained for the crude oils. Results: The phytochemical study of these essential oils showed that p-Thymol, Eucalyptol and Citronellal were respectively the major components in the three investigated EO of O.compactum, R. officinal is and P. asperum. More than 90\% of the total components were detected. The extracts and fractions with glycation inhibitory activity also showed antiradical activity when the DPPH\• radical reducing power was measured. Conclusion: The glycation inhibitory activity was correlated with the antiradical potency of the extracts. Thus, the positive glycation inhibitory and antiradical activities of these plants might suggest a possible role in targeting aging and diabetic complications.The presence of various bioactive compounds confirms the application of these plants for various diseases by traditional practitioners. However, isolation of individual phytochemical constituents may proceed to find a novel drug.

Key words: Aging, Antioxidant, Antiglycation, Diabetes, Essential oil, Radical scavenger.

}, keywords = {Aging, Antiglycation, Antioxidant, Diabetes, Essential oil, radical scavenger.}, author = {Ramdan Btissam and Ramdan Raja and Amakran Amina and Vannier Brigitte and NHIRI Mohamed} } @article {45, title = {In vitro study of anti-glycation and radical scavenging activities of the essential oils of three plants from Morocco: Origanum compactum, Rosmarinus officinalis and Pelargonium asperum}, journal = {Pharmacognosy Journal}, volume = {7}, year = {2015}, month = {Mar-Apr 2015}, pages = {124-135}, type = {Original Article}, chapter = {124}, abstract = {

Introduction: We have carried out our study on the chemical composition; anti-glycation andradical scavenging activities of Origanum compactum, Rosmarinus officinalis and Pelargonium asperum essential oils (EO) that were harvested in the northeast of Morocco. These plants have been traditionally used in medicine as a chief ingredient of many polyherbal formulations for the treatment of several pathologies. Method: The phytochemical study was revealed by GC-MS. The protein glycation inhibitory activity of EO extracted from these plant tissues was evaluated in vitro using the model system of bovine serum albumin and methylglyoxal. The measure of DPPH\• radical reducing power was used to evaluate the antiradical activity. To test each fraction, we used the IC50 value previously obtained for the crude oils. Results: The phytochemical study of these essential oils showed that p-Thymol, Eucalyptol and Citronellal were respectively the major components in the three investigated EO of O.compactum, R. officinal is and P. asperum. More than 90\% of the total components were detected. The extracts and fractions with glycation inhibitory activity also showed antiradical activity when the DPPH\• radical reducing power was measured. Conclusion: The glycation inhibitory activity was correlated with the antiradical potency of the extracts. Thus, the positive glycation inhibitory and antiradical activities of these plants might suggest a possible role in targeting aging and diabetic complications.The presence of various bioactive compounds confirms the application of these plants for various diseases by traditional practitioners. However, isolation of individual phytochemical constituents may proceed to find a novel drug.

}, keywords = {Aging, Antiglycation, Antioxidant, Diabetes, Essential oil, Radical scavenger}, doi = {10.5530/pj.2015.2.7}, author = {Ramdan Btissam and Amakran Amina and NHIRI Mohamed}, editor = {Ramdan Rajae} } @article {1529, title = {Protective role of Helicteres isora plant extract on plasma and tissue glycoprotein components in streptozotocin induced hyperglycemic rats}, journal = {Pharmacognosy Journal}, volume = {6}, year = {2014}, month = {26th May 2014}, pages = {86-91}, type = {Research Article}, abstract = {

The present investigation was carried out to evaluate the protective role of Helicteres isora plant extract on glycoprotein metabolism in streptozotocin (STZ) induced type 2 diabetic rats. Helicteres isora plant extract was administered orally (200 mg/kg body weight) for 40 days to normal and diabetic rats. The effects of Helicteres isora plant extract on plasma and tissue glycoproteins (hexose, hexosamine, sialic acid and fucose) were determined. The levels of plasma glycoproteins containing hexose, hexosamine, sialic acid and fucose were significantly increased in diabetic rats when compared with normal control rats. There was a significant decrease in the level of sialic acid and elevated levels of hexose, hexosamine and fucose in the liver and kidney of STZ induced diabetic rats. On oral administration of Helicteres isora plant extract to diabetic rats showed decreased levels of plasma glycoproteins. The level of tissue sialic acid was increased whereas the levels of tissue hexose, hexosamine and fucose were reversed to near normal. The present study indicates that the Helicteres isora plant extract possesses a significant protective effect on glycoprotein metabolism in addition to its anti-diabetic effect.

Key words:Helicteres isora, Diabetes, Plasma Glycoproteins, Streptozotocin.

}, keywords = {Diabetes, Helicteres isora, Plasma Glycoproteins, Streptozotocin}, author = {C.Elanchezhiyan and K.Kumaravel and Ahmad bhat and S.Sethupathy} }