@article {758, title = {Alpha Mangostin and Xanthone Activity on Fasting Blood Glucose, Insulin and Langerhans Islet of Langerhans in Alloxan Induced Diabetic Mice}, journal = {Pharmacognosy Journal}, volume = {11}, year = {2019}, month = {January 2019}, pages = {64-68}, type = {Original Article}, chapter = {64}, abstract = {

Objective: This research elaborated role of alpha mangostin and xanthone on fasting blood glucose, insulin and langerhans islet in alloxan induced diabetic mice. Methods: Fasting blood glucose, insulin and langerhans islet test were conducted using male Mus musculus mice, divided into 10 groups randomly, which were normal, control (alloxan induced only), glibenclamide, various doses of α-mangostin and xanthone (5, 10, 20 mg/kgbw). Mice were treated for 21 days. Overnight-fasted mice (12 h) were sacrificed by cervical decapitation on day 21st, following the ethical norms granted by the ethics committee. Fasting blood glucose and insulin plasma were checked. Pancreatic tissues were excised from sacrificed animals, and then fixed in 10 \% (v/v) neutral buffered formalin. Histologic observations for Langerhans area were performed after staining using Gomori staining method. Results: The effects of alpha mangostin and xanthone on fasting blood glucose different significantly to control, and were not significantly different from glibenclamide and metformin. Increasing alpha mangostin/xanthone dose from 5 mg/kgbw to 20 mg/bw also did not cause significant differences, although the best results were obtained at a dose of 20 mg/kgbw. Insulin plasma analize showed that there were no significant difference between alpha mangostin/xanthone to normal group, except xanthone 10 mg/kgbw. Langerhans area showed significant difference between alpha mangostin/xanthone to control group. But there{\textquoteright}s still had significant difference if we compare to glibenclamid/metformin group. Conclusion: Alpha mangostin and xanthone are two substances that showed antidiabetic effect on fasting blood glucose level, insulin plasma and Langerhans islet.

}, keywords = {Fasting blood glucose, Insulin plasma, Langerhans, Xanthone, α-mangostin}, doi = {10.5530/pj.2019.1.12}, author = {Welly Ratwita and Elin Yulinah Sukandar and I Ketut Adnyana and Neng Fisheri Kurniati} } @article {643, title = {Alpha-Mangostin Effect on Inhibition Development Stadium and Globin Accumulation Against Plasmodium falciparum}, journal = {Pharmacognosy Journal}, volume = {10}, year = {2018}, month = {June 2018}, pages = {783-788}, type = {Original Article}, chapter = {783}, abstract = {

\α--Mangostin is a widely reported group of Xanthone compounds from the Clusiaceae family of 40 genera and over 1000 species spread across the tropics and subtropics area. The Objective for determine effect of \α-mangostin from Garcinia tetrandra Pierre stem bark against development stadium inhibition and globin accumulation of Plasmodium falciparum. Inhibition stadium development assay used based on the Rosenthal method. Plasmodium falciparum parasitic globin accumulation assay. Globin accumulation assay used the highest concentration of in vitro antimalarial test using SDS-PAGE with positive control E-64 and \α-mangostin were incubated together with the malaria parasite during 24 h. Result of Inhibition stadium development of Plasmodium falciparum against \α-mangostin show inhibition from development stadium of the malaria parasite Plasmodium falciparum, Electrophoresis show globin accumulation from electrophoresis followed by staining using Coomassie brilliant blue. \α-mangostin showed inhibition the growth of malaria parasite Plasmodium falciparum with dose 10 \μg/ml is expected to occur a large accumulation of globin, which can be viewed both morphologically and by the method of SDS-PAGE.

}, keywords = {Development stage inhibition, Garcinia tetrandra, Plasmodium falciparum, SDS-PAGE, α-mangostin}, doi = {10.5530/pj.2018.4.132}, url = {http://fulltxt.org/article/670}, author = {Hadi Kuncoro and Aty Widyawaruyanti and Taslim Ersam} } @article {226, title = {Anti-inflammatory activity of isolated compounds from the stem bark of Garcinia cowa Roxb}, journal = {Pharmacognosy Journal}, volume = {9}, year = {2017}, month = {December 2016}, pages = {55-57}, type = {Original Article}, chapter = {55}, abstract = {

Objective: To find the anti inflammatory active compounds from methanol extract of Garcinia cowa. Methods: To evaluate the inhibitory activity of isolated compounds on nitric oxide (NO) production, culture media was assayed using Griess reaction. An equal volume of Griess reagent (1\% sulphanilamide and 0.1\% N-(L-naphthyl)-ethylene diamine dihydrochloride, dissolved in 2.5\% H3PO4) was mixed with culture supernatant and color development was measured at 550 nm using a micro plate reader. The amount of nitrite in the culture supernatant was calculated from a standard curve (0\–100 \μM) of sodium nitrite freshly prepared in deionized water. Percentage of the NO inhibition was calculated by using nitrate level of IFN-\γ/LPS-induced group as the control. Results: Isolated compounds, tetraprenyltoluquinone, rubraxanthone and \α-mangostin from stem bark of Garcinia cowa Roxb were evaluated for their anti-inflammatory activity. Only \α-mangostin exhibited strong anti-inflammatory activity with 83.42 \% inhibition of NO and without inducing severe cytotoxicity at 50M. Rubraxanthone showed weak inhibition of NO with 23.86 \% inhibition of NO while maintained 77.32 \% of cell viability. TPTQ also showed the strong inhibition of NO with 80.98 \% inhibition but unfortunately this compound also induced severe cytotoxicity with 39.62\% viability. Conclusion: \α-Mangostin exhibited strong anti-inflammatory activity without inducing severe cytotoxicity at 50 M. Rubraxanthone showed weak inhibition of NO while Tetraprenyltoluquinone also showed the strong inhibition of NO however this compound also induced severe cytotoxicity.

}, keywords = {Anti-inflammatory, Garcinia cowa, Nitric oxide, rubraxanthone, tetrapreniltoluquinone, α-mangostin}, doi = {10.5530/pj.2017.1.10}, author = {Fatma Sri Wahyuni and Daud Ahmad Israf Ali and Nordin Hj. Lajis and Dachriyanus} }