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Dina Mahmoud Ahmed Hasanin

Associate Professor

Faculty member

كلية العلوم
Building 5,3rd floor,office 114
المنشورات
مقال فى مجلة
2018

Ebtesam Al-Olayan, Ehab Essawy, Hatem Amin, Ahmed Abdel Moneim (2019) Protective effects of Fragaria ananassa methanolic extract in a rat model of cadmium chloride-

Cadmium (Cd) is a common environmental toxicant that has harmful effects on plants, animals, and humans. The present study evaluated the protective effects of Fragaria ananassa methanolic extract (SME) on cadmium chloride (CdCl2)-induced neuronal toxicity in rats. Male albino rats were intraperitoneally (i.p) injected with CdCl2 (6.5 mg/kg) for 5 days with or without the SME (250 mg/kg). We measured the levels of Cd, lipid peroxidation (LPO), nitric oxide, glutathione (GSH), and oxidative enzymes such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase, and glutathione reductase (GR) in the whole brain homogenate. Compared with the control group, the Cd-intoxicated group showed a marked increase in the brain levels of Cd, LPO, and nitric oxide and a decrease in the levels of GSH and all tested antioxidant enzymes. Compared with Cd-intoxicated rats, the rats pretreated with SME showed restoration of oxidative balance in the brain tissue. While the expression of brain SOD2, CAT, glutathione peroxidase 1, and GR was down-regulated in the Cd-treated group, the expression of these enzymes was up-regulated in rats pretreated with SME. In addition, administration of SME before CdCl2 increased the Bcl-2 expression, but significantly decreased the expression of Bax. Immunohistochemical analysis showed that compared with Cd-intoxicated rats, rats pretreated with SME showed a decrease in the protein expression of tumor necrosis factor α (TNF-α). Our findings indicate that SME protects the brain tissue from Cd-induced neuronal toxicity by improving the antioxidant system and increasing antiapoptotic and anti-inflammatory activities.

مزيد من المنشورات
publications

Malaria is an important health problem in subtropical and tropical areas around the world. Infection with protozoan parasites of the Plasmodium genus, which grow inside host erythrocytes, causes…

2021
publications

Sarcocystis spp. are intracellular protozoan parasites with an intermediate-definitive host life cycle based on a prey–predator relationship. Sarcocystis infection is common among different…

2021
publications

Arsenic is a potent neurotoxic xenobiotic found in drinking water, and food. Chlorogenic acid (CGA), an abundant polyphenol in coffee, potentially has a wide range of therapeutic benefits.

بواسطة Dina M. Metwallya,b,c , Reem A. Alajmia , Manal F. El-Khadragyd,e,⁎ , Hany M. Yehiaf,g , Wafa A. AL-Megrind , Ahmed M.A. Akabawyh , Hatem K. Aminh , Ahmed E. Abdel Moneim
2020