@article {1090, title = {Effect of Uncaria gambir and Uncaria sclerophylla on Pulmonary- Thromboembolism Mice}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {February 2020}, pages = {192-196}, type = {Research Article}, chapter = {192}, abstract = {

Background: Previous studies on virtual screening on P2Y12 receptor of Adenosine Diphosphate (ADP) have showed that Roxburghine B, the compound which is found in Uncaria species, can inhibit the receptor function. Objective: In this study, we investigated the effect of Uncaria gambir and Uncaria sclerophylla extract on survival rate and bleeding time as antithrombotic in vivo. Methods: Animal subjects (ddY strain mice) were divided to two different experimental group (survival rate and bleeding time). U. gambir and U. sclerophylla were given to the mice orally in three different dose (5 mg, 10 mg, 20 mg/20 g BW and 2.5 mg, 5 mg, 10 mg/20 g BW, respectively) for seven days. Results: U. gambir and U. sclerophylla able to prolong bleeding time from test subjects equivalent to ASA as standard. The results show the increasing number of survived animals in the treated group compared to the negative control group. Conclussion: Both of U. gambir and U. sclerophylla prevent pulmonary thromboembolism on mice subjects represent by the increased of survival rate. Antithrombotic effects that were observed suggested was provide by their antiplatelet activity.

}, keywords = {Antithrombotic, Bleeding time, Pulmonary thromboembolism, Survival rate, Uncaria gambir, Uncaria sclerophylla}, doi = {10.5530/pj.2020.12.29}, author = {Aditya Sindu Sakti and Astari Rachma Nityasa and Fadlina Chany Saputri} } @article {934, title = {Difference of Acidic Adding Effect in Ethanol Extraction of White Mulberry Stem Bark (Morus alba) and DPP-4 Inhibiting Activity Screening for Identifying its Antidiabetic Potential}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {July 2019}, pages = {790-795}, type = {Original Article}, chapter = {790}, abstract = {

Objective: Murberry (Morus alba) is one of the plants that can be used to treat diabetes and bioactive compounds that play a role are apigenin. Apigenin compounds have been reported to have an antidiabetic effect and are found in the form of glycosides. To separate apigenin from its glycosides, it takes the process of hydrolysis using acid. This study aims to look at the differences between ethanol extracts without hydrolysis with acids and ethanol extracts which are hydrolyzed by acid and determine their activity as dipeptidyl peptidase-4 (DPP-4) inhibitors in vitro. Methods: Morus alba stem bark dry powder was extracted MAE using 96\% ethanol with acid hydrolysis using HCl 2 N and extracted without acid hydrolysis then apigenin levels can be measured by each extraction process using HPLC. DPP-4 activity was evaluated using glycyl-prolyl-7-amino-4-methyl coumarin (Gly-Pro-AMC) substrate then the inhibitory effect of extracts was determined based on the number of free AMCs by measuring fluorescence at excitation wavelengths of 350-360 nm and emission wavelengths of 450-465 nm using micro-plate readers. Sitagliptin is used as a positive control of DPP-4 inhibition in this test. Results: The ethanol extraction method with acid hydrolysis can attract more apigenin compounds than the ethanol extraction method without acid hydrolysis. The level of apigenin in the sample of ethanol extract with acid hydrolysis was 0.16\%, and in the ethanol extract without acid hydrolysis was 0.04\%. The amount of inhibitory activity of DPP-4 Morus alba stem bark extract was 23\%, which is 0.33 times the inhibition of sitagliptin activity. Conclusion: Extraction methods with acid hydrolysis are more effective in attracting apigenin compounds than without acid hydrolysis. Morus alba stem bark extract has an anti-diabetic effect through the mechanism of action of DPP-4 inhibitors can be used as a reference for therapy of diabetes mellitus from natural ingredients.

}, keywords = {Apigenin, DPP IV, Morus alba}, doi = {10.5530/pj.2019.11.126}, author = {Muhajri Agusfina and Fadlina Chany Saputri and Aditya Sindu Sakti and Abdul Mun{\textquoteright}im} } @article {810, title = {Effect of Gamma Irradiation on Some Pharmacological Properties and Microbial Activities of Melinjo (Gnetum gnemon Linn.) Seeds}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {January 2019}, pages = {177-182}, type = {Original Article}, chapter = {177}, abstract = {

Background: Ionizing radiation, such as gamma irradiation, serves as a useful approach to inhibit spore germination and to control pathogens in postharvest seeds. Recently, its application on phytochemical sources and its influence on antioxidant activity of various phytochemical compounds has become an interesting topic to be explored. Objective: The objectives of this study were to determine the effect of gamma irradiation as sterilization method on the resveratrol content and its antioxidant, HMG-CoA reductase inhibitory and dipeptidyl peptidase-4 (DPP-4) inhibitory activities of Melinjo (Gnetum gnemon) seeds. Methods: In this research, melinjo seeds were irradiated by 0.0; 2.5; 5.0; 7.5; and 10.0 kGy with gamma irradiation and then extracted with ethanol. The extracts were tested for resveratrol content with HPLC, antioxidant activities by DPPH assay, HMG-CoA inhibitory activity using HMG-CoA reductase assay kit and DPP-4 inhibitory activity using DPP-4 Inhibitor Screening Assay Kit. Gamma irradiation has effect on resveratrol content, antioxidant activity, HMG-CoA reductase inhibition and DPP-4 inhibitory activity. Results: From the research, the highest value of resveratrol content is 0.18{\textpm}0.004 mg/g seeds powder found in 5.0 kGy gamma irradiation treatment with IC50 94.64{\textpm}0.236 μg/mL, while the highest HMG-CoA reductase inhibition is shown in 2.5 kGy irradiation dose. Melinjo seeds irradiated by 2.5 kGy gamma irradiation also shown a significant increase of DPP-4 inhibition activity. Conclusion: This study suggests that 2.5-5 kGy radiation is the effective gamma irradiation dose to improve the quality of melinjo seeds.

}, keywords = {Antioxidant, Dipeptidyl peptidase-4, Gamma irradiation, Gnetum gnemon, HMG-CoA reductase, Resveratrol}, doi = {10.5530/pj.2019.1.29}, author = {Rezi Riadhi Syahdi and Aditya Sindu Sakti and Agung Kristiyanto and Riky Redmawati and Abdul Mun{\textquoteright}im} } @article {807, title = {Microscopic Characters, Phytochemical Screening Focus on Alkaloid and Total Phenolic Content of Uncaria gambir Roxb. and Uncaria sclerophylla Roxb. Leaves}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {January 2019}, pages = {119-123}, type = {Original Article}, chapter = {119}, abstract = {

Objective: Uncaria gambir Roxb. and Uncaria sclerophylla Roxb. are medicinal plants widely grown in Indonesia. Genus Uncaria is well known for catechin content that has potent antioxidant activity. Uncaria also was reported containing alkaloid that has antihypertensive action. This study aims to provide microscopic characters and phytochemical profiles associated with the phenolic and alkaloid compounds contained in these two species of Uncaria. Methods: Microscopic characteristics were performed on fresh leaf samples using a microscope. Presence of alkaloids from ethanol and chloroform extract of U. gambir and U. sclerophylla leaf were performed using Dragendorff reagents. Thin Layer Chromatography profile was developed in the mobile phase that consisted of acetone: chloroform (8:2). Total Phenolic Content was determined according to the Folin-Ciocalteu method using microplate reader spectroscopically at λ = 765 nm. Results: Microscopy of U. gambir leaf revealed the presence of vascular bundle fragment, oil fragments, parenchyma cells, midrib transverse-section and lower epidermis with paracytic stomata. Whereas in U. sclerophylla can be observed midrib transverse-section and lower epidermis unicellular with trichomes. Both U. gambir and U. sclerophylla positively contain alkaloids. Chloroform extract showed the presence of alkaloids while ethanolic extracts showed negative results. The TLC profile shows the presence of catechin compound in the ethanolic extract, whereas in the chloroform extract does not show the presence of catechin. The total phenolic content of U. gambir and U. sclerophylla leaf ethanolic extract and chloroform extract was 7.309; 5.734 and 0.437; 0.161 mg of gallic acid equivalents each gram sample, respectively. Conclusion: Microscopic characteristics, TLC and phytochemicals obtained can be used for the authentication of Uncaria gambir Roxb. and Uncaria sclerophylla Roxb leaf.

}, keywords = {Microscopic Characters, Phytocemical Screening, Thin Layer Chromatoghraphy, total phenolic content, Uncaria gambir, Uncaria sclerophylla}, doi = {10.5530/pj.2019.1.20}, author = {Aditya Sindu Sakti and Fadlina Chany Saputri and Abdul Mun{\textquoteright}im} }