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Nabila El Maraghy

Basic information

Name : Nabila El Maraghy
Title: Professor
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Personal Info: Dr. Nabila Nour Eldin El Maraghy, Professor of Pharmacology, Pharmacology, Toxicology and Biochemistry department, Vice Dean for community service and environmental development. She has got her Masters & PhD degrees from Zagazig University View More...


Certificate Major University Year
PhD Pharmacology Zagazig University 1987
Masters Pharmacology zagazig university 1983
Bachelor Pharmaceutical Sciences Cairo University 1973

Teaching Experience

Name of Organization Position From Date To Date
جامعة الزقازيق كلية الصيدلة 26/06/1976 31/08/2013

Researches /Publications

Raspberry keto ne and Garcinia Cambogia rebalanced disrupted insulin resistance and leptin silencing in rats fed high fat fructose diet - 01/0

Nabila Nour ElDin Mostafa El Maraghy

Dalaal M. Abdallah


Aim Obesity is a continually growing pandemic leading to many diseases that affect the overall quality of life. The widely marketed Garcinia cambogia (GC) and Raspberry ketone (RK) were used in this study. Despite their known dietetic effect, however, the metabolomic/signaling pathways involved in this effect are not fully elucidated. Hence, our study comprehends the possible trajectories of their combination against obesity and insulin resistance in addition to exploring their combination merit. Materials and methods Adult male Wistar rats were divided into 5 groups; viz., normal diet (ND), high fat fructose diet (HFFD), HFFD+GC (600mg/kg), HFFD+RK (55mg/kg) and HFFD+GC+RK. To assess our aim, we determined their effect on body weight, IPGTT, glucose homeostasis (glucose, insulin, HOMA IR), lipid profile parameters and SREBP-1c, oxidative stress markers, insulin and leptin signaling pathways (p-IRS-1/p-AKT/GLUT-4, and leptin/STAT-3), as well as liver and adipose tissue histopathology. Results GC/RK combinationcaused weight loss, corrected the disturbed glucose and insulin homeostasis, raised serum levels of HDL anddecreased all other lipid profile parameters. They also increased Nrf-2 expression, ad GSH, as well as p-IRS-1/p-Akt/GLUT-4 cue, while they decreased MDA, leptin/STAT-3 and SREBP-1c content compared to the HFFD group. Furthermore, the GC/RK combination abolished apoptosis, fatty changes and inflammation in hepatocytes and decreased sclerotic blood vessels and congestion in adipose tissue.

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Novel combination of thymoquinone and resveratrol enhances anticancer effect on hepatocellular carcinoma cell line - 01/0

Nabila Nour ElDin Mostafa El Maraghy

Amani Ali Eissa Ahmed,


Hepatocellular carcinoma remains one of the most dominant malignancies worldwide. Neutraceuticals have become under focus in anticancer treatment. Resveratrol is one of the major components of Polygonum Cuspidatum and is known as chemo-preventive agent. Thymoquinone is one of the most potent constituents in Nigella Sativa and has many medicinal effects. The aim of the present study is to investigate the combined effect of thymoquinone and resveratrol on treatment of hepatocellular carcinoma cells (HepG2). We evaluated the effect of thymoquinone and resveratrol separately and in combination on HepG2. Cell viability, caspase-3 activity, glutathione and malondialdehyde content were determined. The IC50 values of thymoquinone and resveratrol were (46 μM and 64.5 μM) respectively, where each showed potent anti-tumor activity on HepG2. The cell viability was 47.2% and 49.9% respectively. Comparing to the control group, treatment with thymoquinone and resveratrol increased caspase-3 enzyme by 77% and 98.5% respectively, while content of glutathione decreased by 22.8% and 35.6% while malondialdehyde content decreased by 18% and 29.6% correspondingly. The combination (thymoquinone + resveratrol) affected the cell viability leading to further decrease by 9.9% and 12.6%. The content of caspase-3 increased by 89% and 67.5% while the glutathione content had further decrease by 25.6% and 12.8%. Malondialdehyde content decreased by 32.3% and 20.7% all are comparing to thymoquinone and resveratrol separate treatment. Thymoquinone and resveratrol combination showed significant cell inhibition and increase in caspase-3 indicating cell apoptosis. Both drugs raised reactive oxygen species leading to decrease of glutathione and minor effect on lipid peroxidation, all these results give a new promising combination with enhanced anticancer effect

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Thymoquinone alleviates the experimentally induced Alzheimer’s disease inflammation by modulation of TLRs signaling - 01/0

Nabila Nour ElDin Mostafa El Maraghy

AA Eissa Ahmed, S Nofal,OA Badary


Alzheimer’s disease (AD) is characterized by a robust inflammatory response elicited by the accumulation and deposition of amyloid-β (Aβ) within the brain. Aβ induces detrimental inflammatory responses through toll-like receptors (TLRs) signaling pathway. Thymoquinone (TQ), the main active constituent of Nigella sativa oil, has been reported by several previous studies for its potent anti-inflammatory effect. The aim of this study is to elucidate the effect of TQ in improving learning and memory, using a rat model of AD induced by a combination of aluminum chloride (AlCl3) and d-galactose (d-Gal). TQ was administered orally at doses of 10, 20, and 40 mg/kg/day for 14 days after AD induction. Memory functions were assessed using the step through passive avoidance test. Amyloid plaques were shown to be present using hematoxylin and eosin staining. Tumor necrosis factor-alpha (TNF-α) and Interleukin-1beta (IL-1β) levels in brain were assessed via ELISA and profiling TLR-2, TLR-4, myeloid differential factor 88, toll–interleukin-1 receptor domain-containing adapter-inducing interferon-β, interferon regulatory factor 3 (IRF-3), and nuclear factor-κB (NF-κB) expressions via real-time polymerase chain reaction. TQ improved AD rat cognitive decline, decreased Aβ formation and accumulation, significantly decreased TNF-α and IL-1β at all levels of doses and significantly downregulated the expression of TLRs pathway components as well as their downstream effectors NF-κB and IRF-3 mRNAs at all levels of doses (p < 0.05). We concluded that TQ reduced the inflammation induced by d-Gal/AlCl3 combination. It is therefore reasonable to assign the anti-inflammatory responses to the modulation of TLRs pathway

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The anorectic agent, lorcaserin, disturbs estrous cyclicity and produces endometrial hyperplasia without affecting ovarian population in female rats. - 01/0

Nabila Nour ElDin Mostafa El Maraghy

Sawsan A.Zaitone


Aims The present study aims to investigate the effect of the new anorectic agent, lorcaserin, on estrous cyclicity, reproductive hormones and folliculogenesis in female mature rats. Materials and methods Rats were divided into four groups; Group i: control group. Group ii-iv: rats treated with lorcaserin (5, 10 or 30 mg/kg/day, p.o.), respectively. The treatment continued for 28 days. Key findings Lorcaserin (5 or 10 mg/kg) caused estrous cycle disturbance in 40% of treated rats while the high dose (30 mg/kg) produced disturbances in 100% of the treated rats. Lorcaserin (5–30 mg/kg) altered some of female hormones where it enhanced estradiol but reduced luteinizing hormone. Minimal edema with congested vessels was observed in the medulla of ovarian sections. Further, epithelial and uterine sections showed hyperplasia. Significance Taken together, the present results demonstrated that lorcaserin affected some reproductive hormones, disturbed estrous cyclicity and induced histopathological changes in the ovaries and uteri without affecting the ovarian populations. Therefore, lorcaserin should be used with caution in women of child bearing potential until adequate clinical safety data are available.

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PARP inhibition ameliorates nephropathy in an animal model of type 2 diabetes: focus on oxidative stress, inflammation, and fibrosis. - 01/0

Nabila Nour ElDin Mostafa El Maraghy

Esraa M. Zakaria , Ahmed F. Ahmed, Abdelmonim A. Ali , Hany M. El-Bassossy


Poly(ADP-ribose) polymerase (PARP) enzyme contributes to nephropathy, a serious diabetic complication which may lead to end-stage renal disease. The study aims to investigate the effect of PARP over-activation on kidney functions in a type 2 diabetic rat model. The study also tests the therapeutic use of PARP inhibitors in diabetic nephropathy. Type 2 diabetes was induced in adult male rats by high-fructose/high-fat diet and low streptozotocin dose. Then, the PARP inhibitor 4-aminobenzamide (4-AB) was administered daily for 10 weeks. At the end, urine samples were collected to measure urine creatinine, albumin, and total proteins. PARP activity, superoxide dismutase (SOD) activity, and nitrite content were measured in kidney tissue homogenate. Glucose, fructosamine, insulin, and tumor necrosis factor-alpha (TNF-α) were measured in serum. Furthermore, histological studies, collagen deposition, and immunofluorescence of nuclear factor kappa B (NFκB) and transforming growth factor beta1 (TGF-β1) were carried out. PARP enzyme activity was significantly higher in the diabetic group and was significantly reduced by 4-AB administration. Diabetic animals had clear nephropathy indicated by proteinuria and increased albumin excretion rate (AER) which were significantly decreased by PARP inhibition. In addition, PARP inhibition increased creatinine clearance in diabetic animals and reduced renal TGF-β1 and glomerular fibrosis. Moreover, PARP inhibition alleviated the elevated serum TNF-α level, renal NFκB, nitrite, and the decrease in SOD activity in diabetic animals. However, PARP inhibition did not significantly affect neither hyperglycemia nor insulin sensitivity. PARP enzyme inhibition alleviates diabetic nephropathy through decreasing inflammation, oxidative stress, and renal fibrosis.

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A Studies on the antidiabetic activities of Momordica charantia fruit juice in streptozotocin-induced diabetic rats. - 01/0

Nabila Nour ElDin Mostafa El Maraghy

Mona F. Mahmoud, Fatma El Zahraa Z. El Ashr , Ahmed Fahmy


Context: Momordica charantia Linn (Cucurbitaceae) (MC) is used in folk medicine to treat various diseases including diabetes mellitus. Objective: This study investigates the antidiabetic activities of Momordica charantia (bitter gourd) on streptozotocin-induced type 2 diabetes mellitus in rats. Materials and methods: Male Wister rats were randomly assigned to 4 groups. Group I, Normal control; Group II, STZ diabetic; Group III and IV, Momordica charantia fruit juice was orally administered to diabetic rats (10 mL/kg/day either as prophylaxis for 14 days before induction of diabetes then 21 days treatment, or as treatment given for 21 days after induction of diabetes). The effects of MC juice were studied both in vivo and in vitro by studying the glucose uptake of isolated rat diaphragm muscles in the presence and absence of insulin. Histopathological examination of pancreas was also performed. Results: This study showed that MC caused a significant reduction of serum glucose (135.99 ± 6.27 and 149.79 ± 1.90 vs. 253.40* ± 8.18) for prophylaxis and treatment respectively, fructosamine (0.99 ± 0.01 and 1.01 ± 0.04 vs. 3.04 ± 0.07), total cholesterol, triglycerides levels, insulin resistance index (1.13 ± 0.08 and 1.19 ± 0.05 vs. 1.48 ± 1.47) and pancreatic malondialdehyde content (p < 0.05). While it induced a significant increase of serum insulin (3.41 ± 0.08 and 3.28 ± 0.08 vs. 2.39 ± 0.27), HDL-cholesterol, total antioxidant capacity levels, β cell function percent, and pancreatic reduced glutathione (GSH) content (p < 0.05) and improved histopathological changes of the pancreas. It also increased glucose uptake by diaphragms of normal (12.17 ± 0.60 vs. 9.07 ± 0.66) and diabetic rats (8.37 ± 0.28 vs. 4.29 ± 0.51) in the absence and presence of insulin (p < 0.05). Conclusions: Momordica charantia presents excellent antidiabetic and antioxidant activities and thus has great potential as a new source for diabetes treatment whether it is used for prophylaxis or treatment.

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PARP-1 inhibition alleviates diabetic cardiac complications in experimental rats - 01/0

Nabila Nour ElDin Mostafa El Maraghy

Esraa M Zakaria, Hany M El-Bassossy, Ahmed F Ahmed, Abdelmoneim A Ali


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Modulation of Diabetes & Dislipidemia in Diabetic Insulin-Resistant Rats by Mangiferin: Role of Adiponectin and TNF- α - 01/0

Nabila Nour ElDin Mostafa El Maraghy

Saleh, S. ; Reda, E. ; Barakat, W.


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