@article {1962, title = {Study of Triterpene Saponin Compounds from Centella asitica as Renin Inhibitor with Pharmacophore Modeling, Molecular Docking and In-vitro Evaluation}, journal = {Pharmacognosy Journal}, volume = {15}, year = {2023}, month = {March 2023}, pages = {57-63}, type = {Original Article }, chapter = {57}, abstract = {

Hypertension is a silent killer that causes kidney, heart, and stroke damage if not handled properly. In Indonesia, the prevalence of the population with high blood pressure is 34.11\% with women 36.85\% higher than men 31.34\%, this shows a fairly high value so that special attention is needed on hypertension therapy. It is known that currently there are 6 types of pharmacological therapy for hypertension and one of the newest is the renin inhibitor class (Aliskiren). Indonesia has diverse natural wealth in the form of flora and fauna, with a wealth of more than 30,000 types of medicinal plants with 9500 potential herbal medicines that have not been utilized optimally, with the largest exporter of herbal medicines in the world. Centella asiatica plants containing triterpenoid saponins have high renin inhibitor activity, namely the content of Asiaticoside and Madecasoside. The research method was carried out in silico using molecular simulation and in vitro with fluorometry (328/552 nm) to test the activity of asiaticoside and madecasoside compounds as well as a mixture of asiaticoside and madecasoside in Centella asiatica plants. This is supported by the docking outcome. The docking results show that madecososide compounds have a gibbs energy close to the positive control aleskiren (-8.356 kcal/mol) and aleskiren (-9.44 kcal/mol). The experiment results showed that the triterpenoid saponin compound (madecassoside) contained an IC value of 0.71, at a concentration of 5 μg/μl, and absorbance of 1.35 A in the first minute. The strongest renin inhibition was Madecasoside compound with a concentration of 5 μg/μl with an average value of fluorescent adsorption and an average percent inhibition of 135\% with the best renin inhibition at Madecasoside 5 ug/ul the first minute with absorbance values 1.19 A. Finally, the in silico result corresponded to the in vitro experiment. Centella asiatica plants have renin inhibitor activity as antihypertensive, especially in secondary metabolites of triterpene saponins with pure madecasoside compounds compared with aliskiren as a renin inhibitor. So that the compound madecasoside has renin inhibitor activity as an antihypertensive.

}, keywords = {Antihypertensive., Asiaticoside, Centella asiatica, In-vitro, Madecasoside, Renin inhibitor}, doi = {10.5530/pj.2023.15.9}, author = {Rangki Astiani and Mohamad Sadikin and Aprilita Rinayanti and Wawaimuli Arozal and Ani Retno Prijanti and Fadilah Fadilah and Firdayani Firdayani and Piter Piter and Guntoro Halim and Franciscus D. Suyatna} } @article {1239, title = {In vitro Assay and Study Interaction of Uncaria gambir (Hunter) Roxb. as Anti-fibrotic Activity Against A549 Cell Line}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {September 2020}, pages = {1232-1240}, type = {Original Article}, chapter = {1232}, abstract = {

Aim: The aim of this study is to finding inhibitor potential from several compounds in gambir plant by using in vitro MTT assay and study interaction with molecular docking. The interaction of amino acids on the binding site with substances in the gambir plant was analyzed to determine its potential as a herbal-based therapy candidate for pulmonary fibrosis. Material and Methods: Protein target using TGFβ1 and NF-κB and compounds from gambir plant ((+)-Catechin. Epigallocatechin gallate, (+)-Epicatechin, Gambiriin A1, Gambiriin A2, Gambiriin B1, Gambiriin B2, Gambiriin C, Procyanidin B1, Procyanidin B3). Result: The results from docking analysis observed that compounds from gambir fruit contain anti-fibrotic activity which act by inhibiting DNA transcription of NF-κB and TGF-β1receptors. The compound Procyanidin B3, an essential amino acid, contains a hydrogen bond with the greatest NF-κB inhibitory activity on Gly214 and Lys337. Compounds from Uncaria gambir (Hunter) Roxb. can be an inhibitor to TGFβ1, all the compounds are on the active site of TGFβ1, and use native ligand which is an inhibitor of TGFβ1 (Naphtyridine). The positive compound catechin has the highest inhibitory activity. Gambiriin B1 and Gambiriin A2 are the most identical compounds with similar affinity binding value. Uncaria gambir (Hunter) Roxb. is already a proven antifibrotic which is further confirmed by (IC50: 19,255 {\textpm} 1.08 μg/ml, p \< 0.05) in A549 cell line. Conclusion: The results demonstrated that Gambiriin have cytotoxic effects and was found potentially as anti-fibrotic by MTT assay and in silico evaluation.

}, keywords = {Gambiriin compounds, Inhibitor of p50 NF-κB, Molecular docking, Pulmonary fibrosis, TGF-β1 receptors}, doi = {10.5530/pj.2020.12.172}, author = {Desdiani Desdiani and Iris Rengganis and Samsuridjal Djauzi and Agus Setiyono and Mohamad Sadikin and Sri Widia A Jusman and Nuryati Chairani Siregar and Suradi and Putri C Eyanoer and Fadilah Fadilah} } @article {1103, title = {Properties of A Thiamine Binding Protein Purified from Mung Bean}, journal = {Pharmacognosy Journal}, volume = {12}, year = {2020}, month = {March 2020}, pages = {266-270}, type = {Original Article}, chapter = {266}, abstract = {

Thiamine (vitamin B1) was the first B vitamin which has been identified. It serves as a cofactor for several enzymes involved in energy metabolism. The laboratory test against thiamine deficiency can be done by measuring thiamine levels in the blood. The aim of this study was to identify the stability and the binding activity characters of TBP. The equilibrium dialysis technique was used to see the factors affecting the bond between TBP and thiamine. The MBTBP concentration of post-chromatographic affinity resulted from dilution of lyophilisate was stable for 30 days at -20{\textdegree}C and 3 days at 4{\textdegree}C. The optimal pH for binding MBTBP to thiamine was 7.5. Alkylation with iodoacetic acid decreased the binding capacity of TBP which suggested the presence of a{\textendash}SH or imidazol group in its active site. The importance of disulfide bridge was proven by decreasing of Thiamine binding capacity of TBP after β-mercaptoethanol treatment. This binding activity was also affected by oxidizing agents, but it was less affected by calcium ions and heavy metals.

}, keywords = {Binding capacity, Mung bean thiamine binding protein (MBTBP), Thiamine}, doi = {10.5530/pj.2020.12.41}, author = {Dwirini Retno Gunarti and Megawati Kartika and Mohamad Sadikin} }