Yazar "Topal, Fevzi" için Gümüşhane Sağlık Hizmetleri Meslek Yüksekokulu listeleme
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Antioxidant Activity of Bisbenzylisoquinoline Alkaloids from Stephania rotunda: Cepharanthine and fangchinoline
Topal, Fevzi; Gülçin, İlhami; Elias, Riad; Gepdiremen, Akçahan; Chea, Aun (2009-03-25)In the present study, we determined the antioxidant activity of cepharanthine and fangchinoline from Stephania rotunda by performing different in vitro antioxidant assays including 1,1-diphenyl-2-picryl hydrazyl free ... -
Antioxidant, antibacterial, and anticandidal activities of an aquatic plant: duckweed (Lemna minor L. Lemnaceae)
Abstract: Duckweed (Lemna minor L. Lemnaceae) is a widespread, free-floating aquatic macrophyte, a source of food for waterfowl and a shelter for small aquatic invertebrates. It grows quickly and reproduces faster than ... -
Apoptotic, antioxidant and antiradical effects of majdine and isomajdine from Vinca herbacea Waldst. and kit
Topal, Fevzi; Gülçin, İlhami; Beydemir, Şükrü; Gagua, Natia; Bakuridze, Aliko; Bayram, Recep; Gepdiremen, Akçahan (2012)herbacea Waldst. and Kit were studied. For testing the possible apoptotic effects of majdine and isomajdine from V. herbacea, DNA fragmentation assay was conducted on the rat brain cortical tissue homogenates, in vitro. ... -
In vitro inhibition of a-carbonic anhydrase isozymes by some phenolic compounds
Topal, Fevzi (2011)Carbonic anhydrase inhibitors (CAIs) are a class of pharmaceuticals used as antiglaucoma agents, diuret-ics, antiepileptics, in the management of mountain sickness, gastric and duodenal ulcers, neurological disorders or ... -
Oxidation of cyanobenzocycloheptatrienes: Synthesis, photooxygenation reaction and carbonic anhydrase isoenzymes inhibition properties of some new benzotropone derivatives
Guney, Murat; Coskun, Ahmet; Topal, Fevzi; Dastan, Arif; Gulcin, Ilhami; Supuran, Claudiu T. (Pergamon-Elsevier Science Ltd, 2014)The oxidation of some cyanocycloheptatrienes with CrO3 and pyridine was investigated and a few new nitrile functionalised benzotropone derivatives were obtained. Photooxygenation reaction of these products was also studied. ... -
Polyphenol Contents and Antioxidant Properties of Medlar (Mespilus germanica L.)
Gulcin, Ilhami; Topal, Fevzi; Sarikaya, S. Beyza Ozturk; Bursal, Ercan; Bilsel, Gokhan; Goren, Ahmet C. (Acg Publications, 2011)Medlar is the fruit of Mespilus germanica L. in the family of Rosaceae. The present study outlines that the native medlar (Mespilus germanica L.) fruits an extremely rich source of antioxidants. In this study, antioxidant ... -
Pomological Features, Nutritional Quality, Polyphenol Content Analysis, and Antioxidant Properties of Domesticated and 3 Wild Ecotype Forms of Raspberries (Rubus idaeus L.)
Topal, Fevzi (2011)The raspberry (Rubus idaeus L.) is an economically important berry crop that contains many phenolic compounds with potential health benefits. In this study, important pomological features, including nutrient content ...