Zobrazeno 1 - 10
of 82
pro vyhledávání: '"Ashraf S.A. El-Sayed"'
Publikováno v:
Heliyon, Vol 9, Iss 9, Pp e20034- (2023)
Podocarpus is the most dominant genus of Podocarpaceae, with higher taxonomical proximity to the Taxaceae, having numerous pharmaceutical applications, however, scarce studies dealing with the physiological and metabolic criteria of Podocarpus in Egy
Externí odkaz:
https://doaj.org/article/4a7eb7115a794f91aac45a2bf92d0888
Autor:
Ashraf S.A. El-Sayed, Nabil Z. Mohamed, Marwa A. Yassin, Mahmoud M. Amer, Reyad El-Sharkawy, Nesma El-Sayed, Mostafa G. Ali
Publikováno v:
Heliyon, Vol 8, Iss 9, Pp e10660- (2022)
Cytosine deaminase (CDA) is a non-mammalian enzyme with powerful activity in mediating the prodrug 5-fluorcytosine (5-FC) into toxic drug 5-fluorouracil (5-FU), as an alternative directed approach for the traditional chemotherapies and radiotherapies
Externí odkaz:
https://doaj.org/article/551ee06e9f1f4382af939b8422234221
Publikováno v:
Journal of Pure and Applied Microbiology, Vol 13, Iss 4, Pp 2055-2063 (2019)
Taxol, a diterpenoid was initially isolated from the bark of Taxus brevifolia, approved by FDA in 1994 as a powerful drug for metastatic ovarian carcinoma, breast and lung cancer. However, due to limitations in the production of this drug based on th
Externí odkaz:
https://doaj.org/article/02dab94194994efabb2b50b9d1dc5660
Publikováno v:
Heliyon, Vol 6, Iss 12, Pp e05630- (2020)
The present study focused on evaluating the effects of oral administration of three different concentrations of Yasmin® combined contraceptive pills (estrogen and progesterone) on reproductive hormones levels, histology of the ovotestis and rate of
Externí odkaz:
https://doaj.org/article/3347ad4111d44c3f9feb02452142b0c7
Publikováno v:
Heliyon, Vol 6, Iss 9, Pp e05048- (2020)
Evaluating the mechanism of tolerance and biotransformation Zn(II) ions by Fusarium solani based on the different physiological was the objective of this work. The physical properties of synthesized ZnONPs was determined by UV-spectroscopy, transmiss
Externí odkaz:
https://doaj.org/article/9ad2e951d411461c99d1cb574ab75ecf
Publikováno v:
Heliyon, Vol 6, Iss 5, Pp e03866- (2020)
Silver ions discharged from various industries, are potentially toxic to living organisms at low concentrations, thus, there is an increasing need for development of an eco-friendly and cost-effective approach for its bioremediation. Filamentous fung
Externí odkaz:
https://doaj.org/article/5d4acb40960b478e83586b9d58166f2f
Autor:
Ashraf S.A. El-Sayed, Manal T. El-Sayed, Amgad M. Rady, Nabila Zein, Gamal Enan, Ahmed Shindia, Sara El-Hefnawy, Mahmoud Sitohy, Basel Sitohy
Publikováno v:
Molecules, Vol 25, Iss 13, p 3000 (2020)
Endophytic fungi have been considered as a repertoire for bioactive secondary metabolites with potential application in medicine, agriculture and food industry. The biosynthetic pathways by fungal endophytes raise the argument of acquisition of these
Externí odkaz:
https://doaj.org/article/5cd96f9e819f41edaccd53e9ed4d96e6
Autor:
Ashraf S.A. El-Sayed, Nelly M. George, Marwa A. Yassin, Bothaina A. Alaidaroos, Ahmed A. Bolbol, Marwa S. Mohamed, Amgad M. Rady, Safa W. Aziz, Rawia A. Zayed, Mahmoud Z. Sitohy
Publikováno v:
Molecules, Vol 24, Iss 15, p 2756 (2019)
l-Ornithine decarboxylase (ODC) is the rate-limiting enzyme of de novo polyamine synthesis in humans and fungi. Elevated levels of polyamine by over-induction of ODC activity in response to tumor-promoting factors has been frequently reported. Since
Externí odkaz:
https://doaj.org/article/a6faf513cc714b108dee29462d2c61b4
Publikováno v:
Biomedical and Pharmacology Journal. 14:1331-1343
Background: Using synthetic drugs for treating liver fibrosis remains a challenge since, in contrast to natural products, are remarkably expensive and associated with several adverse effects. Herbs and plants showed strong antioxidant, anti-inflammat
Publikováno v:
Biomedical and Pharmacology Journal. 14:1133-1142
Despite the remarkable progress in selecting the chemotherapeutic drugs, most are expensive and associated with many adverse effects targeting both cancer and normal cells. The using of polyphenols as natural materials for chemoprevention is consider