Publications by authors named "Wesam Elsaghayer"

5 Publications

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Cancer incidence in the middle region of Libya: Data from the cancer epidemiology study in Misurata.

Cancer Rep (Hoboken) 2021 Jun 15:e1448. Epub 2021 Jun 15.

Faculty of Medicine, University of Misurata, Misrata, Libya.

Background: Cancer incidence and cancer registries are essential for local epidemiological information. In Libya, scarce evidence exists with regard to incidence rates and distribution.

Aim: To estimate cancer incidence in Libya and draw trends of cancer type distribution compared to regional and worldwide data. Such incidence data are needed to inform strategic decisions on cancer facilities, training, and research in the given geographical area of Misurata, the major city in the middle region and third largest in Libya.

Methods: This is an observational, multi-centre, city-wide study to account for all cancer cases. All radiology (computed tomography and magnetic resonance imaging) and pathology reports were examined across all public and private hospitals in and around Misurata.

Results: Four hundred and thirty cancer cases were identified to have been diagnosed during 12 months (July 2019-June 2020), yielding a cancer incidence of 71.7 per 100 000 population. Breast cancer (84, 19.5%), colorectal cancer (83, 19.3%), lung cancer (33, 7.7%), and prostate cancer (21, 4.9%) had the highest prevalence.

Conclusion: Cancer incidence established in this study stands at 71.1, much lower than the worldwide reported incidence of 201.0. Several limitations lead to missing cancer cases from the survey period, mostly related to poor documentation, non-research friendly environment, and disorganised healthcare structure. Nevertheless, distribution by type represents a true contrast to the world cancer report. Finally, a national or regional inclusive cancer registry is essential to the flow of information that supports strategic planning and decision-making in developing cancer care in the country.
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June 2021

Phoenix dactylifera protects against oxidative stress and hepatic injury induced by paracetamol intoxication in rats.

Biomed Pharmacother 2018 Aug 25;104:366-374. Epub 2018 May 25.

Department of Pharmacology and Toxicology, Wright State University, Dayton, USA. Electronic address:

The current studies were sought to determine effects of antioxidant potential of aqueous and methanolic extracts of Phoenix dactylifera leaves (PLAE and PLME) against the widely-used analgesic paracetamol (PCM) induced hepatotoxicity. Groups of rats were treated with or without PCM (1500 mg/kg), PLAE and PLME (300 mg/kg) and n-acetylcysteine (NAC, 50 mg/kg) followed by assessments of liver function tests, oxidative stress, antioxidant defenses, and hepatotoxicity. We observed that PCM significantly elevated serum liver markers, aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), gamma glutamyl transferase (GGT), and bilirubin compared to control (untreated) group. These PCM-induced effects were associated with oxidative stress as demonstrated by increased levels of malondialdehyde (MDA) and reduced levels of hepatic antioxidant enzymes, glutathione peroxidase (GPx), catalase (CAT), and superoxide dismutase (SOD). Pretreatment of PLME decreased ALT and AST by 78.2% and tissue MDA by 54.1%, and increased hepatic GPx (3.5 folds), CAT (7 folds) and SOD (2.5 folds) compared to PCM group. These PLME-mediated effects were comparable to NAC pretreatment. Histological analysis demonstrates that PLME conserved hepatic tissues against lesions such as inflammation, centrilobular necrosis, and hemorrhages induced by PCM. In contrast, PLAE-mediated effects were less effective in reducing levels of liver function enzymes, oxidative stress, and liver histopathological profiles, and restoring antioxidant defenses against PCM-induced intoxication. These findings indicate that PLME exerts protective effects against PCM-induced hepatotoxicity via scavenging free radicals and restoring hepatic antioxidant enzymes. Thus, PLME and its bioactive components could further be evaluated for their pharmacological properties against drug-induced deleterious effects.
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August 2018

Neurofibromin Expression is Associated with Aggressive Disease and Poor Outcome in Colorectal Carcinoma.

Anticancer Res 2016 10;36(10):5301-5306

Department of Oncology and Radiotherapy, Turku University Hospital and University of Turku, Turku, Finland.

Aim: To assess the predictive and prognostic value of neurofibromin (NF) expression in colorectal carcinoma (CRC).

Materials And Methods: The present series consists of archival samples from 191 patients with stage I, II, III, or IV CRC treated between 1981 and 1990 at the Turku University Hospital (Finland). Tumor biopsies as microarray blocks were analyzed for expression of NF by immunohistochemistry. Different grading systems were tested for NF expression.

Results: A significant correlation between NF expression and tumor localization was found, with tumors arising in the colon showing intense NF expression more often than those arising in the rectum (p=0.014). Higher expression of NF was more common in tumors not responding to treatment (p=0.004). Tumors with multiple metastases showed higher expression of NF than those with single metastasis only (p=0.025). Furthermore, NF expression showed a borderline (p=0.068) correlation with gender; tumors of women showed higher NF expression that those of males. On the other hand, NF expression was not significantly associated with tumor recurrence, age, lymph node involvement, tumor grade and tumor stage or disease outcome.

Conclusion: Positive NF expression in CRC is a sign of aggressive disease and poor outcome.
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October 2016

Ameliorating Effect of Olive Leaf Extract on Cyclosporine-induced Nephrotoxicity in Rats.

Iran J Kidney Dis 2015 Sep;9(5):361-8

Department of Pharmacology, College of Medicine, Beni Suef University, Beni Suef, Egypt; Department of Pharmacology, College of Pharmacy, Misurata University, Misurata, Libya.

Introduction: Olive leaves are traditionally used in the Mediterranean basin in many medical conditions for its potent antioxidant activity. Cyclosporine A, a well-known immunosuppressant, can induce nephrotoxicity through oxidative stress. This study investigated the effect of olive leaf extract (OLE) on cyclosporine-induced nephrotoxicity in rats.

Materials And Methods: Thirty Wistar rats (180 g to 200 g) were classified into 5 groups, each containing 6 rats. The first group received normal saline and served as control. The second group was treated with cyclosporine, 25 mg/kg for 21 days for nephrotoxicity induction. Groups 3 to 5 were treated with cyclosporine, 25 mg/kg in addition to different doses of OLE (40 mg/kg, 80 mg/kg, and 120 mg/kg), respectively, for 21 days. After 21 days, the rats' body weights were recorded and the rats were sacrificed. Blood samples were collected and the animals were necropsied. Both kidneys were removed, one for histopathological and one for antioxidant activity evaluations.

Results: Cyclosporine significantly reduced body weight and kidney weight; serum total protein, albumin, and sodium levels; and renal glutathione peroxidase, catalase, and superoxide dismutase. It also increased serum urea, creatinine, and calcium levels as compared to the control group. Groups 4 and 5 showed a significantly greater body weight and kidney weight; higher serum sodium, total protein, and albumin levels; greater glutathione peroxidase, catalase, and superoxide dismutase; and lower serum urea, creatinine, and calcium levels as compared to group 2.

Conclusions: Treatment with OLE can alleviate cyclosporine-induced nephrotoxicity when used in a proper dose.
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September 2015