Heba Abdelrazek - Academia.edu (original) (raw)

Papers by Heba Abdelrazek

Pharmaceuticals

Myocardial infarction (MI) is a life-threatening ischemic disease and is one of the leading cause... more Myocardial infarction (MI) is a life-threatening ischemic disease and is one of the leading causes of morbidity and mortality worldwide. Serotonin (5-HT) release during myocardial ischemia plays an important role in the progression of myocardial cellular injury. This study was conducted to investigate the possible cardioprotective effect of flibanserin (FLP) against isoproterenol (ISO)-induced MI in rats. Rats were randomly divided into five groups and were treated orally (p.o.) with FLP (15, 30, and 45 mg/kg) for 28 days. ISO was administered subcutaneously (S.C.) (85 mg/kg) on the 27th and 28th days to induce MI. ISO-induced myocardial infarcted rats exhibited a significant increase in cardiac markers, oxidative stress markers, cardiac and serum 5-HT levels, and total cardiac calcium (Ca2+) concentration. ISO-induced myocardial infarcted rats also revealed a remarkable alteration of electrocardiogram (ECG) pattern and significantly upregulated expression of the 5-Hydroxytryptamine...

Egyptian Journal of Histology

Suez Canal Veterinary Medical Journal. SCVMJ

Biomedical and Pharmacology Journal, 2021

1Department of Pathology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt.... more 1Department of Pathology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt. 2Department of Home and Economics, Nutrition and Food Science Branch, Faculty of Education, Suez Canal University, Ismailia, Egypt. 3Anatomy and Embryology Department, Faculty of Medicine, Suez Canal University, Egypt. 4Postgraduate at Department Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt. 5Department of Physiology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, Egypt. *Corresponding Author E-mail: hebaabdelrazekvet@gmail.com

Egyptian Academic Journal of Biological Sciences. D, Histology and Histochemistry, Dec 13, 2022

Open Veterinary Journal

Background: The study was planned to explain the interactions of isoflavones with estrogen recept... more Background: The study was planned to explain the interactions of isoflavones with estrogen receptors alpha (ERα), beta (ERβ) and vascular endothelial growth factor (VEGF) expressions in ovarian and uterine tissues during different stages of estrous cycle of regular cyclic female Wistar rats. Methods: Thirty-two regular cyclic females were divided equally into control group: fed casein-based diet and isoflavones group: fed casein-based diet and gavaged 50 mg/kg/day soy isoflavones extract 40%. Regularity of estrus cycles was monitored. Final body weight (FBW), weight gain (BWG), ovarian and uterine weights were estimated. Histopathology and immunohistochemistry for ERα, ERβ and VEGF in ovarian and uterine tissues were performed. Results: All females (100 %, n=16) in control group showed regularity in estrous cycle compared to 62.5% (n=10) in isoflavones group. Estrus and diestrus phases revealed prolongation and shortening in isoflavones rats than control, respectively. Non-significa...

Advances in Animal and Veterinary Sciences, 2016

Phytoestrogens are a class of endocrine disruptors that have been implicated in birth defects ass... more Phytoestrogens are a class of endocrine disruptors that have been implicated in birth defects associated with hormonedependent development. This study demonstrates the effects of dietary phytoestrogens at prenatal time on development of rat embryos. Thirty four female rats were divided into 2 groups; G1 (control) and G2 (High phytoestrogens). Implantation rate, expression of Oct-4, Cdx2 in embryonic and uterine tissues, fetal teratology and serum alkaline phosphatase activity (ALP) were determined. Results revealed significantly decreased implantation rate, Cdx2 expression and ALP while increased Oct-4 expression at GD7 in treated group. Gross and skeletal malformations beside visceral abnormalities in foeti of treated group were observed. Serum ALP was significantly increased in foeti of dams treated with phytoestrogens than control. These effects could be attributed to the estrogenic action of phytoestrogens during embryonic development beside their down regulating effect on Cdx2 ...

Saudi Journal of Biological Sciences, 2020

Nutrients

This study investigated the ameliorative potential of methanolic date flesh extract (MDFE) agains... more This study investigated the ameliorative potential of methanolic date flesh extract (MDFE) against cisplatin-induced hepatic injury. Twenty male rats (weighing 180–200 g) were allocated into four groups: control; date flesh (DF) group (oral 600 mg/kg MDFE for 21 days); Cis group (7.5 mg/kg i.p. at day 16); and date flesh/cisplatin (DF/Cis) group (oral 600 mg/kg MDFE for 21 days and 7.5 mg/kg i.p. at day 16). Hepatic biochemical parameters in sera, and inflammatory and oxidant/antioxidant hepatic biomarkers were estimated. Hepatic histological changes and the immunohistochemistry of cyclooxygenase-2 (COX-2), nuclear factor kappa B (NF-κB), and alpha smooth muscle actin (α-SMA) were assessed. Pretreatment with MDFE decreased Cis-triggered liver biochemical parameters, oxidative stress, inflammatory biomarkers, and histological damage. Moreover, MDFE treatment reduced Cis-induced hepatic NF-κB, COX-2, and α-SMA protein expression. MDFE exerted a hepatoprotective effect when used concom...

Diabetology

Insulin-dependent diabetes mellitus (IDDM) is a metabolic condition that induces blood glucose le... more Insulin-dependent diabetes mellitus (IDDM) is a metabolic condition that induces blood glucose levels to rise due to insulin deficiency and the formation of reactive oxygen species (ROS). The purpose of this study is to assess how efficient the antioxidant extracts Tribulus terrestris (TT) and metformin (MET) are in reducing oxidative stress and histopathology produced by streptozotocin in rat hepatocytes. The 36 male rats weighing 170–190 g of this study were randomly sorted into 6 groups. The first group was considered a normal control group, and the second and third groups were normal and remedy with MET and TT extract, respectively. The fourth group was positive diabetic, and the fifth and sixth groups were diabetic rats that were treated with MET and TT extract, respectively. Lipid peroxidation (LPO), catalase (CAT), glutathione-S-transferase (GST), and glutathione (GSH) were detected, and the histopathology of the liver was evaluated after 8 weeks of treatment. Compared to reg...

This experiment aimed to investigate the effect of dietary Nigella sativa on cell mediated immune... more This experiment aimed to investigate the effect of dietary Nigella sativa on cell mediated immune response. A total of eighteen male Wistar rats were divided equally into control and black seeds at 30 and 50 g/kg/diet (Sa30 and Sa50), respectively for 30 days. Weight gain, feed intake, feed conversion ratio (FCR), cell mediated immune response was monitored after injection of 0.1 mL of 10% phytohemagglutinin (PHA). Intumesce Index, serum total antioxidant capacity (TAC), Catalase (CAT), Interleukin-12 (IL-12), gamma interferon (γ-IF) and tumor necrosis factor alpha (TNF-α) were determined. Histopathological examination and immunohistochemistry of splenic caspase-3 and CD 8 were done. Nigella sativa significantly (p<0.05) improved weight gain and FCR in Sa30 and Sa50 groups. Significant increase for Intumesce Index in Sa50 group was observed. Total TAC, CAT, IL-12, γ-IF and TNF-αincreased significantly (P<0.05) in Sa30 and Sa50 groups. Histological examination of PHA stimulated...

Veterinary Research Forum, 2020

This study was performed to evaluate the efficacy of two levels of dietary oregano essential oil ... more This study was performed to evaluate the efficacy of two levels of dietary oregano essential oil (OEO) on growth performances, biochemical, hematological parameters, and intestinal histomorphology in Japanese quail. A total number of 99 quail chicks were divided into three groups (33 quails per group): Control, OEO 150 mg kg-1, and OEO 300 mg kg-1 treated groups for 42 days. Feed conversion ratio (FCR), feed intake, weight gain, and edible organ weight were recorded. Biochemical and hematological parameters were determined. Histomorphological examination of hepatic and intestinal tissues was performed. FCR was significantly improved and feed intake was significantly decreased in OEO 150 mg kg-1 group compared to control. No detectable changes were observed in the lipid profile. Meanwhile, total protein, albumin, globulin, and H/L ratio were significantly increased in OEO 300 mg kg-1 at day 21. Uric acid and creatinine were significantly increased in the OEO 300 mg kg-1 group at day ...

1Center of Scientific Foundation for Experimental Studies and Research, Ismailia 41611, Egypt. 2N... more 1Center of Scientific Foundation for Experimental Studies and Research, Ismailia 41611, Egypt. 2Nutrition and Food Science, Home Economic Department, Faculty of Education, Suez Canal University, Ismailia 41522, Egypt. 3Anatomy and Embryology Department, Faculty of Medicine, Suez Canal University, Ismailia 41522 Egypt. 4Department of Biochemistry, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt. 5Department of Pharmacology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt. 6Department of Physiology, Faculty of Veterinary Medicine, Suez Canal University, Ismailia 41522, Egypt. *Corresponding author E-mail: hebaabdelrazekvet@gmail.com

Ecotoxicology and environmental safety, 2021

This study has investigated the effect of using the Uncaria tomentosa (UT) extract against immuno... more This study has investigated the effect of using the Uncaria tomentosa (UT) extract against immunotoxicity that induced by fipronil (FP) in male Wistar rats. Twenty-eight, male Wistar rats were assigned randomly into four groups (7 rats each). Control group received distilled water. FP group received FP 9.7 mg/kg b. wt orally via gastric tube. UT group received 120 mg/kg b. wt. of UT extract orally. FP-UT group received both FP and UT (9.7 and 120 mg/kg b.wt, respectively) for 30 days. Hematological parameters, malondialdehyde (MDA), total antioxidant capacity (TAC), estradiol, histamine and immunoglobulin E (IGE) were assayed. Histopathological and electron microscopical examinations were performed to the lymphoid organs. Hematological parameters, were decreased in the FP group than the control group. There was a rise in MDA of FP group followed by a decrease in TAC content with histological and ultrastructure degenerative changes. UT extract treatment ameliorated the FP-induced per...

Biology, 2021

Simple Summary Insecticides are widely used in agricultural and household environments. They indu... more Simple Summary Insecticides are widely used in agricultural and household environments. They induce wide range of deleterious effects. Fipronil is one of the most widely used phenylpyrazoles insecticides. The neurotoxic effect of such insecticide was tested in the present study with special emphasis on cognitive deficit as well as testing the possible ameliorative impacts of L-arginine and L-carnitine. The study proposed fipronil-induced cognitive deficit as a reflection to oxidative stress and neuro-inflammation. Moreover, L-arginine and L-carnitine exerted ameliorative influence on fipronil induced oxidative stress and neuro-inflammation. Therefore, L-arginine and L-carnitine can be considered as prospective candidates for mitigation of pesticide induced neurotoxicity especially in people with high-risk exposure to pesticide. Abstract The ameliorative effect of L-arginine (LA) and L-carnitine (LC) against fipronil (FPN)-induced neurotoxicity was explored. In this case, 36 adult ma...

Scientific Reports

This experiment aimed to investigate the effect of dietary Nigella sativa on the cell-mediated im... more This experiment aimed to investigate the effect of dietary Nigella sativa on the cell-mediated immune response. Eighteen male Wistar rats were divided equally into a control group and treated groups that received black seeds at rates of 30 and 50 g/kg in the diet (Sa30 and Sa50 groups, respectively, for 30 days. The weight gain, feed intake, feed conversion ratio (FCR), and cell-mediated immune response were monitored after the injection of 0.1 mL of 10% phytohemagglutinin (PHA). The intumesce index, serum total antioxidant capacity (TAC), catalase (CAT), interleukin-12 (IL-12), gamma interferon (γ-IF) and tumor necrosis factor alpha (TNF-α) were determined. Histopathological examination and an immunohistochemistry analysis of splenic caspase-3 and CD8 were performed. Nigella sativa significantly improved the weight gain and FCR. Intumesce index of Sa50 group was significantly increased. Nigella sativa significantly increased TAC, CAT, IL-12, γ-IF and TNF-α. A histological examinati...

Environmental Science and Pollution Research

Monosodium glutamate (MSG) is a common flavor enhancer and stabilizer for ready-made or packaged ... more Monosodium glutamate (MSG) is a common flavor enhancer and stabilizer for ready-made or packaged foods. This research investigated the impact of MSG on the maternal and fetal liver. The present study was carried out on sixteen mature female Albino rats and eight male rats of reproductive age. The control group was dissected on day 20 of gestation. MSG group was administrated MSG daily at a dosage of 1 g/5 mL/kg body weight from day 0 to day 20 of gestation. The liver function and lipid profile of the control and treated mothers were investigated in the blood sera. The levels of nitric oxide (NO), tumor necrosis factor (TNF-α), superoxide dismutase (SOD), and reduced glutathione (GSH) activities in the liver homogenate of maternal and fetal tissue were assayed, in addition to histopathological, histochemical and immunohistochemical studies were done to the liver tissue. The activities of liver functions and lipid profile significantly altered in the treated mothers with MSG. MSG significantly reduced the SOD and reduced GSH activities in addition to the elevated TNF-α and NO in liver tissue of pregnant mothers and their fetuses. Severe histopathological alterations were observed in both maternal and fetal liver tissues of MSG-treated groups. Moreover, histochemical observations showed a reduction of total polysaccharides in the liver of pregnant rats and fetuses. A significant increase in the percentage area of positive immunoreaction for caspase 3 was observed in the liver of treated rats with MSG compared to the liver of the control. The liver of fetuses treated with MSG revealed an alteration like their mother. This study showed that during the gestational period MSG exposure resulted in several biochemical, histological, and histochemical changes in the maternal and fetal liver tissues which emphasize the toxic effect of MSG.