Potensi anti-kanker payudara tanaman songga (Strychnos lucida R.Br): Tinjauan interaksi molekuler terhadap reseptor estrogen-α in silico

Songga (Styrchnos lucida R.Br) is a plant that has potential to be developed as an anti-breast cancer against. This study was conducted to predict the secondary metabolite derived from songga, which potential as anti-breast cancer through inhibition of estrogen receptor-α. A molecular docking study was carried out using Autodock Vina assisted by AutodockTool and Biovia Discovery Studio. The study used estrogen receptor-α as a protein and ten compounds from songga as ligands. The 3D structure of estrogen receptor-α and ten ligands were obtained from Protein Data Bank and the PubChem database. The result revealed that strychnine N-oxide is the compound that has the lowest free binding energy and inhibition constant with the value 9.6 kcal/mol and 0.09 µM, respectively. This indicated that strychnine N-oxide has an excellent affinity for estrogen receptor-α. Thus, this compound is predicted to inhibit the estrogen receptor-α and can be developed as anti-breast cancer. However, further investigations such as molecular dynamics simulation, in vitro and in vivo assays should be undertaken

IDENTIFICATION OF PORK'S CYTOCHROME B GEN IN PROCESSED MEAT NUGGETS IN SUKABUMI VILLAGE, BUAY BAHUGA SUB-DISTRICT USING THE POLYMERASE CHAIN ??REACTION (PCR) METHOD

Nugget adalah jenis olahan daging restrukturisasi yang sangat rentan terhadap cemaran daging lainnya sehingga mempengaruhi kehalalan suatu produk makanan. Penelitian ini bertujuan untuk mengidentifikasi cemaran sitokrom b pada nugget yang beredar di Desa Sukabumi dengan menggunakan metode Polymerase Chain Reaction  (PCR). Sebanyak 3 buah  sampel nugget di desa Sukabumi diambil dari produsen yang berbeda dan divisualisasi dengan elektroforesis gel agarose 0,75%, dan divisualisasikan dengan alat documentation system. Hasil penelitian menunjukkan  berupa pita-pita marker DNA ledder yang masing-masing berjarak 100 bp. Untuk kontrol positif yang digunakan daging babi dengan marker 130 bp. Kesimpulan dari  penelitian ini adalah seluruh sampel tidak terindentifikasi adanya gen sitokrom b

EVALUASI DAN IDENTIFIKASI GOLONGAN SENYAWA POTENSIAL ANTIBAKTERI PADA DAUN DAN KULIT BATANG MIMBA (Azhadirachta indica A. Juss) TERHADAP Escherichia coli

ABSTRACT Neem (Azadirachta indica A.Juss) is a plant that potentially developed for antibacterial agent for both the leaves and barks. The aims of this study were to compare the effectiveness of the antibacterial activity of neem leav es and stem barks extract and to identify the antibacterial compounds of the most active fractions. The extraction method was done using sonication method. Antibacterial activity was evaluated using wells solid diffusion method and TLC-Bioautography. Extract fractionation was conducted using liquid-liquid partitioning method. The chemical compounds of extracts and fractions were analyzed using TLC and GCMS. The result of sonication extraction obtained neem leaves oil (12,02%), leaves crude extract (4,3%) and stem barks crude extract (16,85%). The major chemical constituents of GCMS analysis are 2,3-Dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one (6,06%), L-proline,1-Acetyl-(CAS) Acetylproline (5,85%), 4-hydroxy-2-methyl-pyrrolidine-2-carboxylic acid (21,42%), 2,3-Dyhidrobenzofuran (2,69%), alpha-D-methylglucopyranoside (4,54%), palmitic acid (2,92%), Arabino-hex-1-enitol, 1,5-Anhydro-2-deoxy-(CAS) glucal (31,69%). Phytochemical screening of neem leaves oil, leaves and barks crude extract revealed the presence of alkaloids, flavonoids, phenols, saponins, triterpenoids, steroids and sterols. Antibacterial test results showed neem leaves oil was more effective than leaves and stem barks crude extract against Escherichia coli. The n-hexane fraction showed higher antibacterial activity than ethyl acetate fraction and ethanol fraction. Phytochemical screening of n-hexane fraction showed the presence of triterpenoids, steroids, sterols and phenols.   Mimba (Azadirachta indica A.Juss) merupakan tanaman yang berpotensi dikembangkan sebagai antibakteri baik bagian daun maupun kulit batang. Penelitian ini bertujuan untuk membandingkan efektivitas antibakteri ekstrak daun dan kulit batang mimba terhadap Escherichia coli dan untuk mengidentifikasi golongan senyawa potensial antibakteri pada fraksi teraktif. Pengujian aktivitas antibakteri dilakukan dengan metode difusi padat menggunakan sumuran dan KLT-Bioautografi. Fraksinasi ekstrak dilakukan dengan metode partisi. Komponen kimia ekstrak dan fraksi dianalisis menggunakan KLT dan GCMS. Hasil ekstraksi sonikasi diperoleh minyak daun (12,02%), ekstrak kasar daun (4,3%) dan ekstrak kasar kulit batang (16,85%). Skrining fitokimia menunjukkan minyak daun, ekstrak kasar daun dan ekstrak kulit batang mimba mengandung senyawa alkaloid, flavonoid, fenolik, saponin, triterpenoid, steroid dan sterol. Komponen kimia mayor hasil analisis GCMS minyak daun mimba adalah 2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one (6,06%), L-proline,1-Acetyl-(CAS)Acetylproline (5,85%), 4-hydroxy-2-methyl-pyrrolidine-2-carboxylic acid (21,42%), 2,3-dyhidrobenzofuran (2,69%), Alpha-d-methylglucopyranoside (4,54%), Asam Palmitat (2,92%), Arabino-hex-1-enitol, 1,5-anhydro-2-deoxy-(CAS)glucal (31,69%). Hasil uji antibakteri menunjukkan minyak daun lebih efektif menghambat pertumbuhan Escherichia coli dibandingkan dengan ekstrak kasar daun dan kulit batang. Fraksi n-heksan menunjukkan aktivitas antibakteri paling besar dibandingkan dengan fraksi etil asetat dan etanol. Hasil skrining fitokimia fraksi n-heksan menunjukkan adanya senyawa triterpenoid, steroid, sterol dan fenolik

Breaking Boundaries: A Comparative Analysis of Weak vs. Strong Bases in Eugenol Isolation from Syzygium aromaticum (L.) Merr. & LM Perry

Eugenol, a phenolic compound classified within the phenylpropanoid group, stands out as a key constituent of clove oil, boasting a myriad of biological activities. Its isolation typically involves the utilization of an alkaline solution, yet the choice of alkaline agent significantly impacts the yield of eugenol. This study delves into the impact of various alkaline solutions on the isolated eugenol content from Syzygium aromaticum essential oil, leveraging its acidic properties to form a soluble eugenol salt in an aqueous medium. Employing alkaline solutions with a concentration of 1 N, including both strong bases (such as KOH, NaOH, and Ba(OH)₂) and weak bases (like Ni(OH)₂, Al(OH)₃, and Zn(OH)₂), we scrutinized the diverse outcomes on eugenol content. Results revealed that KOH yielded the highest eugenol content at 96.91%, while Zn(OH)₂ displayed the lowest at 20.99%. Nevertheless, the potential of weak alkaline solutions in the eugenol isolation process from Syzygium aromaticum essential oil remains noteworthy. Future endeavors should focus on optimizing the ideal concentration of weak alkaline solutions for this purpose

HMG-CoA Reductase Inhibitory Activity Potential of Iota-, Kappa-, and Lambda-carrageenan: A Molecular Docking Approach

HMG-CoA reductase is an essential enzyme responsible for the biosynthesis of cholesterol. Hyperactivity of HMG-CoA reductase will increase cholesterol production, leading to the elevation of blood cholesterol levels. Inhibition of HMG-CoA reductase is one way to block cholesterol biosynthesis to lower blood cholesterol levels. This study evaluated the inhibitory potential of iota-, kappa-, and lambda-carrageenan against HMG-CoA reductase. The study was undertaken by in silico method using a molecular docking approach via Autodock 4.2 assisted by ADT graphical user interface. HMG-CoA reductase co-crystal structure was used as the target, and iota-, kappa-, and lambda-carrageenan as the test ligands. The result revealed that iota- and lambda-carrageenan possess an excellent affinity to HMG-CoA reductase with the free binding energy of -12.44 and -11.87 kcal/mol and Ki value of 0.765 and 2.01 nM, respectively, which is found to be better than Simvastatin and the native ligand. The compounds' chemical properties influenced the molecules' molecular interactions affecting their affinity. The number of SO4 groups is assumed to affect the HMG-CoA reductase inhibitory activity of iota-, kappa-, and lambda-carrageenan. KEYWORDS: iota-, kappa-, and lambda-carrageenan; HMG-CoA reductase; inhibitory activity; molecular dockin

Aaptamine Enhanced Doxorubicin Activity on B-Cell Lymphoma 2 (Bcl-2): A Multi-Structural Molecular Docking Study

Doxorubicin, a widely used chemotherapeutic agent, targets Bcl-2, but its efficacy can be limited by drug resistance. Its combination with natural derived compound can be a therapeutic approach to overcome this problem. This study aimed to investigate the molecular interactions and binding affinities of aaptamine and doxorubicin with Bcl-2 using molecular docking simulations, and to evaluate the potential synergistic effects of their combination. Molecular docking studies were performed to predict the binding modes and affinities of aaptamine and doxorubicin along with their combination to Bcl-2. Molecular docking simulation results showed that aaptamine binds to the BH3 binding groove of Bcl-2, forming key interactions with residues like Asp70, Tyr67, Phe112 and Glu111. Aaptamine stabilized the binding of doxorubicin to Bcl-2 through hydrophobic bonding and van der Waals interactions, resulting in enhanced binding affinity. The combination of aaptamine and doxorubicin exhibits synergistic anticancer effects by enhancing the binding affinity of doxorubicin to Bcl-2. Molecular docking simulations provided insights into the stabilizing interactions between aaptamine, doxorubicin, and Bcl-2, suggesting a potential strategy for overcoming Bcl-2-mediated drug resistance in cancer. However, further in vitro investigation is needed to be implemented

Integrating The Network Pharmacology and Molecular Docking to Uncover The Potential Mechanism Of Rutin In Fighting Diabetes Mellitus

Introduction: Rutin is a flavonol glycoside that is known to have blood sugar reducing activity. However, its molecular mechanism in reducing blood sugar level remains unclear. This study was employed to elucidate the pharmacological mechanism of rutin as antidiabetic agent. Methods: Potential target of rutin was screened in relevant databases to construct a compound-target network. Network pharmacology was utilized to identify targets associated with disease, gene ontology and KEGG pathways and confirmed its potential binding affinity using Autodock 4.2 assisted by ADT interface. Result: The result highlighted mTor, PIK3R1, and NFKB1R as a potential target of Rutin through network pharmacology. This target involved in the insulin signaling pathways, insulin resistance, type 2 diabetes mellitus, B receptor signaling pathways, AGE-RAGE signaling pathway in diabetic complications and pancreatic cancer. All docking protocols were valid with RMSD value for TNF-a, NF-KB, PI3K were 0.72 Å, 0.67 Å, ​​and 0.54 Å, respectively. The molecular docking has confirmed the potential mechanism of rutin as antidiabetic agent by stably bound with these proteins with estimated free binding energy values of -8.54 kcal/mol (NF-KB), -8.01 kcal/mol (PI3K), and -6.22 kcal/mol (TNF-a). Conclusion: The study has given insight into the molecular mechanism of rutin in the management of DM by stably bound with NF-KB, TNF-a, and PI3K. However, further laboratory experimental research is needed, particularly in vitro and in vivo assa