Mohamed Abdelaleim Elshahat

Prof. Dr. Mohamed Abdelaleim Elshahat


Research Focus & Metrics

Academic Career Length

6Years (2021-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
29 May 2023 in Biomedicines
Verified
Journal Article
Open access
PDF file
WHWalaa Hegazy
Walaa Hegazy
HSHader Ibrahim Sakr
Hader Ibrahim Sakr
MAManal Abdul-Hamid
Manal Abdul-Hamid
MEMohamed Abdelaleim Elshahat
Mohamed Abdelaleim Elshahat
MGMarwa Gomaa
Marwa Gomaa
AMAdel Abdel Moneim
Adel Abdel Moneim
The occurrence of worsening pulmonary function has been connected to hypothyroidism (HPO). Hesperidin (HES) was suggested to have antioxidant, anti-proliferative, and anti-inflammatory potential. Our study’s objective was to determine whether HES could reduce carbimazole (CBZ)-induced lung injury more effectively than Eltroxin (ELT) in adult male albino rats or not. At random, 32 rats were distributed into four groups: Group I: normal control, to induce HPO, the remaining three groups were given CBZ (20 mg/kg/day) dissolved in distilled water for 1 week. They were then split up into three groups. Group II: orally administered CBZ (20 mg/kg b.w in water/day), Group III: HES (200 mg/kg/day) dissolved in 1% carboxymethyl-cellulose + CBZ treated, and Group IV: ELT (0.045 mg/kg/day) dissolved in distilled water + CBZ treated. All treatments were delivered for 12 weeks. Blood was collected to assess thyroid-stimulating hormone (TSH) and thyroid hormones (THs). Lung injury was evaluated based on the pulmonary content of interleukin (IL)-35, IL-6, and tumor necrosis factor-alpha (TNF-α), along with the estimation of lipid peroxidation, catalase, glutathione levels, superoxide dismutase, heme oxygenase-1 (HO-1), and nuclear factor erythroid 2-related factor 2 (Nrf2). The histological, ultrastructural, and immunohistochemical study of nuclear factor Kappa-B (NF-κB) and inducible nitric oxide synthase (iNOS), together with estimating the proliferation of cells using Antigen Ki-67 in lung tissue were performed. HES and ELT primarily suppressed variable lung damage mechanisms by suppressing TSH, the NF-κB/TNF-α pathway, iNOS, lipid peroxidation, Ki-67, and inflammatory mediators. On the other hand, they improved THs, antioxidant parameters, and the Nrf2/HO-1 pathway. HES and ELT exhibited an ameliorative effect that was reflected in the histopathological, immunohistochemical, and ultrastructural results. These results indicate that HES is a pneumoprotective agent that could be a promising treatment for oxidative stress, inflammation, and proliferation.

25 September 2024 in Nanotoxicology
Verified
Journal Article
Closed access
NKNour Kahil
Nour Kahil
Noura S. AbouzeinabNoura S. Abouzeinab
Noura S. Abouzeinab
MEMohamed Abdelaleim Elshahat
Mohamed Abdelaleim Elshahat
Mahmoud Ibrahim KahlilMahmoud Ibrahim Kahlil
Mahmoud Ibrahim Kahlil
Zinc oxide (ZnO) and nickel oxide (NiO) nanoparticles (NPs) are widely used in various industries due to their distinctive physico-chemical and biological properties. However, concerns have been raised about their potential toxicity in humans. While many studies have reviewed their effects on visceral organs upon ingestion, inhalation, or skin contact, limited reviews are available regarding their adverse consequences on the liver and kidneys resulting from intraperitoneal administration in rats. Hence, this systematic review is the first to uniquely address this issue. A systematic search was performed on PubMed and Google scholar to identify articles that explored the toxic effects of ZnO-NPs and NiO-NPs in rats following intraperitoneal injection. The quality of the articles was assessed using SYCLE's risk of bias tool, leading to the selection of 16 articles; 14 for ZnO-NPs, 1 for NiO-NPs and 1 for both NPs. This review revealed that ZnO-NPs induces an acute toxicity in liver and kidney that is dose dependent. The impairments were marked by changes in organs functional markers, lipid and glucose levels and antioxidant deficiencies and lipid peroxidation. NiO-NPs also showed considerable toxicity, despite the limited studies. Further, variability of physico-chemical properties among studies complicated the toxicity assessment. To conclude, this study provides a novel contribution by summarizing the literature findings that suggest potential adverse intraperitoneal hepatorenal toxic outcomes associated with ZnO-NPs and NiO-NPs. Future research should focus on long-term effects and standardizing protocols to ensure the safe use of ZnO-NPs and NiO-NPs in industrial and clinical practices.

25 July 2024 in Renal Failure
Verified
Journal Article
Open access
AAAsmaa Adel
Asmaa Adel
MAManal Abdul-Hamid
Manal Abdul-Hamid
SASamraa H. Abdel-Kawi
Samraa H. Abdel-Kawi
MEMohamed Abdelaleim Elshahat
Mohamed Abdelaleim Elshahat
HSHader I. Sakr
Hader I. Sakr
OAOsama M. Ahmed
Osama M. Ahmed
This study explores the possible therapeutic role of rats and mice bone marrow-derived mesenchymal stem cells (BM-MSCs) on renal damage and toxicity brought on by carbon tetrachloride (CCl4) in Wistar rats. Following an intraperitoneal injection of CCl4 (0.5 mL/kg b.w. twice weekly) for eight weeks, male Wistar rats were intravenously treated with rats and mice BM-MSCs (1 × 106 cells in 0.2 mL Dulbecco's Modified Eagle Medium (DMEM)/rat/week) a week for four weeks. Kidney functions were evaluated and kidney samples were examined using hematoxylin and eosin (H&E), Masson's trichrome (MT) staining techniques, and electron microscopy analysis. Kidney cyclooxygenase-2 (COX-2), protein 53 (p53), and tumor necrosis factor-α (TNF-α) were detected by immunohistochemical staining techniques. Additionally, bioindicators of oxidative stress and antioxidant defense systems were identified in kidney tissue. In CCl4-injected rats, serum creatinine, urea, and uric acid levels significantly increased, as did renal lipid peroxidation (LPO), while superoxide dismutase, glutathione peroxidase (GPx), glutathione (GSH) transferase, and GSH levels significantly dropped in the kidneys. Histologically, the kidneys displayed a wide range of structural abnormalities, such as glomerular shrinkage, tubular dilations, inflammatory leukocytic infiltration, fibroblast proliferation, and elevated collagen content. Inflammatory cytokines like COX-2 and TNF-α as well as the pro-apoptotic mediator p53 were considerably upregulated. Treatment of BM-MSCs from mice and rats with CCl4-injected rats considerably reduced the previously noted abnormalities. By boosting antioxidant defense and reducing apoptosis and inflammation, BM-MSCs from mice and rats were able to enhance kidney function and histological integrity in rats that had received CCl4 injections.

31 December 2021 in Endocrine, Metabolic & Immune Disorders - Drug Targets
Verified
Journal Article
Closed access
PDF file
Walid KamalWalid Kamal
Walid Kamal
GNGopal Nambi
Gopal Nambi
SASaud Alsubaie
Saud Alsubaie
SEShereen H. Elsayed
Shereen H. Elsayed
MEMarwa M. Eid
Marwa M. Eid
MEMohamed Abdelaleim Elshahat
Mohamed Abdelaleim Elshahat
Background:: Exercise and dietary interventions are used to control dyslipidemia and depression in obese individuals, whilst rare investigations have examined the concurrent effects of a low-fat diet and moderate-intensity aerobic exercise training (MIAET) on dyslipidemia and depression in obese patients. Hence, we assessed the potential influences of a low-fat diet combined with MIAET on blood lipids and depression in those individuals. Methods:: Forty-two obese patients aged 30-50 years have been enrolled in this randomized controlled trial. They have been randomized equally into MIAET group (n=14, 60-70% of the maximum heart rate (Max HR), three sessions a week), a low-fat diet group (n=14, fat, 30% Kcal/day), and a low-fat diet plus MIAET (n=14) for 10 consecutive weeks. Body mass index (BMI), lipid profile, and Hamilton depression rating scale (HDRS) have been assessed on two occasions, pre and post- 10 weeks. Results:: It was demonstrated that a low-fat diet group showed an improvement in total cholesterol (T-Ch), p=0.046, with no changes in triglycerides (TGs), p=0.343, low-density lipoproteins (LDLs), p=0.187, and high-density lipoproteins (HDLs), p=0.224; however, MIAET group showed an improvement in TGs, p=0.042, HDLs, p=0.038 with no changes in T-Ch, p=0.126, and LDLs, p=0.368. Regarding the low-fat diet plus MIAET group, significant improvements were identified in TGs, p=0.003, T-Ch, p<0.001, LDLs, p=0.004, and HDLs, p<0.001. For the depression status, all groups showed a significant improvement in HDRS, p<0.001, with a low-fat diet plus MIAET group showing greater advantages, p<0.05. Conclusion:: The results of the current trial suggest an important implication for promoting improvement in blood lipids and a reduction in depression status in obese patients with dyslipidemia following 10-week of a concurrent low-fat diet and moderate-intensity aerobic exercise more than low-fat diet or MIAEt alone.

1 January 2022 in BioMed Research International
Verified
Journal Article
Open access
PDF file
SESamah A. El-Hashash
Samah A. El-Hashash
MEMohamed Abdel-Monem El-Sakhawy
Mohamed Abdel-Monem El-Sakhawy
EEEman E. El-Nahass
Eman E. El-Nahass
MEMohamed Abdelaleim Elshahat
Mohamed Abdelaleim Elshahat
Walid KamalWalid Kamal
Walid Kamal
MEMona M. Elwan
Mona M. Elwan
Lead pollution is a major environmental challenge worldwide. Therefore, dietary interventions that are aimed at preventing lead’s deleterious effects on body organs are needed. The study’s goal was to study and compare the protective effect of cold and hot beverages of Roselle (Hibiscus sabdariffa L.) red calyces (CRB and HRB, respectively) on liver and kidney insufficiency associated with lead exposure in male rats. Adult albino rats (32 males) were divided into four groups of equal number, including a normal control (group 1), while groups from 2 to 4 received lead acetate (20 mg/kg body weight/day) and were kept untreated (group 2). The 3rd and the 4th groups received CRB and HRB (0.5 ml/100 g body weight/day), respectively, for 6 weeks. The gain in the body and relative weights of the liver and kidneys were calculated. Liver and kidney functions were determined in serum, while lead, delta‐aminolevulinic acid dehydratase, and oxidative stress markers were established in tissues. Specimens from the liver and kidney of sacrificed rats were histopathologically examined. The total activity of antioxidants and total content of anthocyanin of both beverages were determined. Lead exposure resulted in its accumulation in tissues, leading to overweight and liver and kidney insufficiency along with oxidative stress, which was further confirmed by histological staining. CRB was more efficient than HRB in preventing the deleterious effects of lead intoxication. Due to their antioxidant properties, the present study proved that Roselle red calyx beverages, particularly the cold ones, are protective agents against lead‐associated disorders in a rat model.

1 January 2023
Verified
Journal Article
Closed access
MEMohamed Abdelaleim Elshahat
Mohamed Abdelaleim Elshahat
OAO. M. Ahmed
O. M. Ahmed
MAM. Abdel-Gabbar
M. Abdel-Gabbar
MMM. R. Mohammad
M. R. Mohammad
SIS. R. Ibrahim
S. R. Ibrahim
AGA. I. Geddawy
A. I. Geddawy