Suselo, Yuliana Heri
Fakultas Kedokteran Universitas Sebelas Maret Surakarta

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Pomegranate Extract Does Not Inhibit Sodium Glucose co-Transporter 2 Protein in Vero Cells Ulfia, Mila; Indarto, Dono; Ayu Sari, Amelya Augusthina; Suselo, Yuliana Heri
Nexus Kedokteran Translasional Vol 6, No 1 (2017): Nexus Kedokteran Translasional
Publisher : Fakultas Kedokteran Universitas Sebelas Maret Surakarta

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Abstract

Backgrounds: Mutation of SLC5A2 gene which encodes sodium glucose co-transporter2 (SGLT2) protein enhances glucose reabsorption on the kidney tubule in some patients with type 2 diabetes (DMT2). Dapagliflozine an oral antidiabetic drug, inhibits SGLT2 activity. Ellagic acid is able to inhibit SGLT2 protein in silico and highly found in pomegranate fruits. The aim of this study was to investigate the effect of pomegranate extracts on glucose levels in a model cell of African green monkey (Vero cell line). Methods: This study was an experimental laboratory with posttest only control group design. 1 x 106 Vero cells perwell were used in five experimental groups: negative control 1 (KKn1), KKn with 20% glucose (KKn2), positive control with dapagliflozine (KKp), ethanol and diethyl ether extract of pomegranate peel (KEDA), methanol extract of pomegranate seeds (BMA). Vero cells were then treated with 125 ppm pomegranate extracts (KEDA and BMA) and incubated for 24 hours. Cell morphology was observed under an inverted microscope with 100 x magnification. Glucose levels in Vero cells were measured using spectrophotometer. Collected data was analyzed descriptively. Result: Morphology of Vero cells was oval, soliter and centered nucleus and did not change during incubation with pomegranate extracts. Glucose levels in Vero cells treated with BMA (28.5 mg/dL) and KEDA (29 mg/dL) were higher than glucose levels in control groups KKp, KKn1, and KKn2 (2.5, 6.5 and 8 mg/dL respectively). Conclusion; Pomegranate extracts do not inhibit SGLT2 protein and increase glucose levels in Vero cells. Purification of pomegranate extracts is required for further investigation of the capability of ellagic acid inhibiting SGLT2 protein. Keywords: Ellagic acid, glucose level, pomegranate, SGLT2, type 2 diabetes.
Indonesian Pythochemical as Erythropoietin Agonist In Sillico to Treatment Anemia in Chronic Kidney Disease Kamil, Muhammad Rizki; Suselo, Yuliana Heri; Wulandari, R. Aj Sri
Nexus Kedokteran Translasional Vol 6, No 1 (2017): Nexus Kedokteran Translasional
Publisher : Fakultas Kedokteran Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (14.209 KB)

Abstract

Background: Anemia is the most frequent complication in CKD and until now the its treatment still hampered effectiveness and efficiency. Indonesia is known to have 9,600 species of plants that have a pharmacological effect and some compounds have been created for 3D structures and databases. Molecular docking is beginning of the process of the invention the drug most widely used. This study aims to screen Indonesian herbal plant that has activity as an agonist of erythropoietin receptor for treatment of anemia in CKD development with molecular docking method. Methods: The research was a bioinformatics study which utilized all phytochemicals in HerbalDB that had PubChem access code and met the criteria for Lipinskis rule of five as sample. The complex of Epo-EpoR was obtained from the Protein Data Bank, code: 1CN4. Validation of truncated Epo with EpoR needed to get docking scores and binding site at EpoR. Molecular docking between phytochemical compounds with EpoR models was done using AutodockVina 1.1.2. Visualization of docking results was done using PyMOL 1.7.4. Results: There are 12 phytochemicals that have 10 of 17 in common EpoR binding site. There are seven of them met the criteria phytochemical Lipniskis rule of five and then two phytochemicals are selected which has the most variation binding site to EpoR, 18 sites. Gibberellin A51 and Miraxanthin-III were two selected phytochemicals of the most potentially as EpoR agonist based on analysis of docking scores, binding site similarity with truncated Epo, and Lipinskis rule of five criterias. Conclussion: Gibberellin A51 and Miraxanthin-III were the most potent Indonesian phytochemicals that could be a EpoR agonist to development of treatment anemia in CKD. Keywords: Anemia, CKD, EpoR agonists, Indonesian phytochemicals, molecular docking