In vitro glycation and advanced glycation endproduct formation with icodextrin and oligosaccharides

2002 ◽  
Vol 1245 ◽  
pp. 487-489
Author(s):  
D.J Millar ◽  
G.W Taylor ◽  
A Dawnay
2019 ◽  
Vol 17 (2) ◽  
pp. 210
Author(s):  
Esti Mulatsari ◽  
Esti Mumpuni ◽  
Ikhsan Ramadhan

Diabetes memiliki dampak jangka panjang seperti aterosklerosis, nefropati, dan retinopati yang disebabkan oleh pembentukan Advanced Glycation End Products (AGEs). Penelitian secara in vitro pada ekstrak bawang putih (Allium sativum L.) terhadap aktivitas penghambatan pembentukan AGEs telah banyak dilakukan, namun belum diketahui mekanisme penghambatan dan senyawa apa yang berperan aktif dalam aktivitas penghambatan tersebut. Penelitian ini bertujuan untuk melakukan skrining virtual senyawa – senyawa dalam bawang putih (Allium sativum L.) yang aktif menghambat reseptor Advanced Glycation Endproduct sehingga senyawa aktif bisa dipertimbangkan sebagai kandidat senyawa obat. Metode yang digunakan adalah molecular docking dengan software PLANTS, YASARA, MarvinSketch, dan visualisasi ikatan senyawa uji pada asam amino reseptor menggunakan PyMOL, piridoksamin dan aminoguanidin digunakan sebagai kontrol positif inhibitor AGEs. Hasil docking 24 senyawa uji diperoleh tujuh senyawa yang aktif menghambat reseptor 3B75.pdb dan lima senyawa aktif menghambat reseptor 3O3U.pdb. Kandidat senyawa obat terdiri dari senyawa organosulfur, fenol dan flavonoid. Senyawa Ɣ-glutamil-sistein, E-ajoene, Nα-(1-Deoksi-Dfructosa-1-YL)-L-Arginin, Kaempferol-3-o-β-D-glukopiranosa, Iso-rhamnetin-3-o-β-D-glukopiranosa merupakan senyawa – senyawa dalam bawang putih yang memiliki kemampuan menghambat baik reseptor 3B75 maupun 3O3U dengan aktivitas yang lebih baik dari piridoksamin dan aminoguanidin.


2018 ◽  
Vol 9 (11) ◽  
pp. 5728-5739 ◽  
Author(s):  
Ali Aljohi ◽  
Sabine Matou-Nasri ◽  
Donghui Liu ◽  
Nadia Al-Khafaji ◽  
Mark Slevin ◽  
...  

Momordica charantiaextracts protect against advanced glycation endproduct-induced anti-angiogenisisin vitro.


Cytokine ◽  
2013 ◽  
Vol 62 (3) ◽  
pp. 369-381 ◽  
Author(s):  
Tony Lin ◽  
Gregory Brett Walker ◽  
Khaliq Kurji ◽  
Edward Fang ◽  
Geoffrey Law ◽  
...  

2014 ◽  
Vol 1 (e1) ◽  
pp. 001-001 ◽  
Author(s):  
Kei Fukami ◽  
Takanori Matsui ◽  
Sho-ichi Yamagishi

Biomolecules ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 453
Author(s):  
Ana Filošević Vujnović ◽  
Katarina Jović ◽  
Emanuel Pištan ◽  
Rozi Andretić Waldowski

Non-enzymatic glycation and covalent modification of proteins leads to Advanced Glycation End products (AGEs). AGEs are biomarkers of aging and neurodegenerative disease, and can be induced by impaired neuronal signaling. The objective of this study was to investigate if manipulation of dopamine (DA) in vitro using the model protein, bovine serum albumin (BSA), and in vivo using the model organism Drosophila melanogaster, influences fluorescent AGEs (fAGEs) formation as an indicator of dopamine-induced oxidation events. DA inhibited fAGEs-BSA synthesis in vitro, suggesting an anti-oxidative effect, which was not observed when flies were fed DA. Feeding flies cocaine and methamphetamine led to increased fAGEs formation. Mutants lacking the dopaminergic transporter or the D1-type showed further elevation of fAGEs accumulation, indicating that the long-term perturbation in DA function leads to higher production of fAGEs. To confirm that DA has oxidative properties in vivo, we fed flies antioxidant quercetin (QUE) together with methamphetamine. QUE significantly decreased methamphetamine-induced fAGEs formation suggesting that the perturbation of DA function in vivo leads to increased oxidation. These findings present arguments for the use of fAGEs as a biomarker of DA-associated neurodegenerative changes and for assessment of antioxidant interventions such as QUE treatment.


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