Limanto, Agus
Unknown Affiliation

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

In-silico study of the Effectiveness of Allium sativum L. extract as an Angiotensin-Converting Enzyme (ACE) Inhibitor in Hypertension Limanto, Agus; Husain, Elma Eka Fitra; Dewajanti, Anna Maria
Majalah Kedokteran Bandung Vol 55, No 3 (2023)
Publisher : Faculty of Medicine, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15395/mkb.v55n3.3287

Abstract

Over the last decade, the global prevalence of hypertension rate has increased by 5.2% and, in Indonesia, the prevalence rate has increased significantly from 25.8% in 2013 to 34.1% in 2018. Hypertension treatments using blood pressure-lowering drugs, such as angiotensin-converting enzyme (ACE) inhibitors, often cause unpleasant side effects. These side effects increase the interest in using potentially effective natural remedies, such as garlic. This study aimed to determine which organosulfur compounds in garlic can act as an ACE inhibitor to reduce blood pressure in hypertension using a cheminformatics approach. Eighteen organosulfur compounds of Allium sativum L. were screened based on Lipinski’s rules and ADMET evaluation. Seven compounds passed the screening and were subjected to QSAR analysis, molecular docking analysis, and molecular dynamics simulations to assess the stability of the protein. The seven compounds then underwent molecular docking and QSAR analysis. Ajoene (4,5,9-trithiadodeca-1,6,11-triene-9-oxide) and S-allylmercaptocysteine (SAMC) were two compounds with better docking values compared to the positive control compound. The QSAR analysis also showed that SAMC had an activity as an ACE inhibitor. The ADMET evaluation showed that Ajoene and SAMC had good absorption and could not penetrate the blood-brain barrier. Molecular dynamics simulation of ACE complexes Ajoene, SAMC, and Captopril ranged from 0.05 to 5.61 Å but exhibited a pattern of synonymous fluctuations for most residues. Based on the simulation data, the organosulfur compounds from garlic, Ajoene, and SAMC are proven to have a mechanism of action as ACE inhibitors to reduce blood pressure in hypertension.
Uji In Vivo Aktifitas Antihiperurisemia Ekstrak Etanol Bunga Melinjo (Gnetum Gnemon L.) Dewajanti, Anna Maria; Limanto, Agus; Wijaya, Bella N.; Sumbayak, Erma Mexcorry; Kurniawan, Hendrik
Jurnal Ners Vol. 10 No. 2 (2026)
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jn.v10i2.55409

Abstract

Hiperurisemia merupakan keadaan di mana kadar asam urat di dalam darah tinggi sehingga dapat menimbulkan penyakit gout, kerusakan ginjal, dan komplikasi lain. Dalam beberapa dekade terakhir, peneliti mulai mengembangkan tanaman obat untuk menyembuhkan beberapa penyakit, salah satunya adalah tanaman melinjo. Penelitian ini bertujuan untuk mengevaluasi aktivitas antihiperurisemia ekstrak bunga melinjo (Gnetum gnemon L). Desain penelitian eksperimental ini pre-post test control group. Aktivitas antihiperurisemia dinilai melalui pengukuran kadar asam urat plasma darah tikus putih Sprague Dawley yang diinduksi hiperurisemia. Kelompok perlakuan menerima ekstrak dengan dosis 450 mg/kgBB dan 900 mg/kgBB, yang dibandingkan dengan kelompok kontrol positif (allopurinol 90 mg/kgBB) dan negatif (Na- CMC 0,5%). Pemberian ekstrak dosis 450 mg/kgBB dan 900 mg/kgBB secara signifikan menurunkan kadar asam urat darah, dengan nilai p < 0,05 (Uji Wilcoxon), begitu pula dengan allopurinol. Pada analisis antar kelompok, kadar asam urat hari ke-7 berbeda bermakna (uji Kruskal–Wallis), dengan perbedaan terutama antara kontrol negatif dan kelompok perlakuan/kontrol positif (post-hoc Bonferroni). Tidak terdapat perbedaan bermakna antara kontrol positif dan kelompok ekstrak pada hari ke-7. Hasil penelitian ini membuktikan potensi ekstrak bunga melinjo sebagai agen alami dan berperan dalam pengelolaan antihiperurisemia. Temuan ini mendukung pengembangan terapi alternatif berbasis bahan alami dengan risiko efek samping yang lebih rendah