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      Penambatan Molekuler Senyawa Aktif Jintan Hitam sebagai Inhibitor Enzim Kolinesterase dalam Pengembangan Terapi Alzheimer

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      Date
      2021
      Author
      Pangestu, Alifian Gigih
      Sulistiyani, Sulistiyani
      Pratama, Rahadian
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      Abstract
      Asetilkolinesterase (AChE) dan Butirilkolinesterase (BChE) merupakan dua jenis enzim kolinesterase yang berperan dalam penurunan kadar asetilkolin sebagai gejala khas penyakit alzheimer. Jintan hitam memiliki beragam senyawa aktif yang berpotensi menghambat aktivitas kedua enzim. Penelitian ini bertujuan menganalisis interaksi beberapa senyawa aktif penting dari jintan hitam dalam menghambat aktivitas kedua enzim. Senyawa uji terbaik dipilih berdasar analisis sifat kemiripan obat yang memenuhi kriteria dalam bioavailabilitas, toksisitas dan aspek farmakokinetik sebagai obat. Analisis penambatan molekul dilakukan dengan perangkat lunak komputer PyRx Virtual Screening dan YASARA Structure. Hasil penelitian menunjukkan 7 dari 25 senyawa uji diduga memiliki aktivitas penghambatan pada enzim AChE dan BChE. Senyawa nigelicin berpotensi sebagai inhibitor terbaik AChE (ΔG -7,74 kcal/mol; %BSS 69,23%). Senyawa nigelidin berpotensi sebagai inhibitor terbaik BChE (ΔG -6,73 kcal/mol; %BSS 33,33%). Ikatan inhibitor dan enzim pada keduanya didominasi interaksi hidrofobik dengan cincin aromatik berjajar. Kedua senyawa tergolong kelompok alkaloid jintan hitam yang berpotensi dikembangkan sebagai herbal terapi alzheimer.
       
      Acetylcholinesterase (AChE) and Butyrylcholinesterase (BChE) are two types of cholinesterase enzyme that plays important role in reducing acetylcholine as a symptom of alzheimer. Black cumin has a variety of active compounds and the potential to inhibit the activity of both enzymes. This study aims to analyze interaction of some crucial active compounds of black cumin in inhibiting AChE and BChE enzymes. Active compounds selected through drugs-likeness analysis that in compliance with bioavailability, toxicity and pharmacocinetics aspect. Docking simulation doing by the Pyrx Virtual Screening software and the YASARA Structure software. As a result, 7 of the 25 analyze compounds have the potential to inhibit activity of both enzymes. Nigelicin is the best compound that inhibits AChE (ΔG -7,74 kcal/mol; %BSS 69,23%). Nigelidin is the best compound that inhibits BChE (ΔG -6.73 kcal/mol; %BSS 33,33%). Both inhibitor and enzyme complex dominated by hydrophobic with lined aromatic structure. Both compounds are classified as alkaloid of black cumin that potential as alzheimer’s therapy.
       
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      http://repository.ipb.ac.id/handle/123456789/108343
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      • UT - Biochemistry [1465]

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