Mohamed Alkafafy

Prof. Dr. Mohamed Alkafafy

Taif University, Ta'if, Saudi Arabia
orcid

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

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

Representative Publications

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31 January 2022 in Life
Verified
Journal Article
Open access
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Samy sayedSamy sayed
Samy sayed
SASaqer Alotaibi
Saqer Alotaibi
AEAhmed El-Shehawi
Ahmed El-Shehawi
Mohamed M. HassanMohamed M. Hassan
Mohamed M. Hassan
Mustafa ShukryMustafa Shukry
Mustafa Shukry
Mohamed Mohamed SolimanMohamed Mohamed Soliman
Mohamed Mohamed Soliman
The Acrylamide is a toxic compound generated under oxidative stress arising from intracellular ROS production and induced toxicity. It is frequently used in industry and generated through the heating of tobacco and foods high in carbohydrates. The exact mechanism of its toxicity is still unclear. In this study, an extract of the peels of pomegranate (Punica granatum L.), a nutritious and visually appealing fruit with a diverse bioactive profile, was examined for its potential anti-apoptotic, antioxidant, and anti-inflammatory effects. A total of 40 adult male Wistar rats were allocated into four groups of 10 rats each: Group 1 was a negative-control group (CNT) and received normal saline; Group 2 was a positive-control acrylamide group and received acrylamide orally at a dose of 20 mg/kg/bw; in Group 3, the rats were supplemented with pomegranate-peel extract (P.P; 150 mg/kg/bw) orally on a daily basis for 3 weeks, administered simultaneously with the acrylamide treatment described for Group 2; Group 4 was a protective group, and the animals received the pomegranate-peel extract and acrylamide as stated for Groups 2 and 3, with the pomegranate-peel extract (P.P. extract) administered 1 week earlier than the acrylamide. The results indicate that acrylamide exposure increased the serum levels of AST, ALT, creatinine, interleukin-1 beta, and interleukin-6 in an extraordinary manner. In addition, it increased the lipid peroxidation marker malondialdehyde (MDA) and simultaneously weakened antioxidant biomarker activities (SOD, GSH, and catalase) and reduced the levels of interleukin-10. The pomegranate-peel extract was shown to reduce the inflammatory blood markers of interleukin-1 beta and IL-6. Glutathione peroxidase, superoxide dismutase, catalase, and interleukin-10 were all significantly elevated in comparison to the acrylamide-treatment group as a result of the significant reduction in MDA levels induced by the P.P extract. In addition, the pomegranate-peel extract normalized the cyclooxygenase-2 (COX2), transforming growth factor-beta 1 (TGF-β1), and caspase-3 levels, with a significant upregulation of the mRNA expression of heme oxygenase-1 (HO-1), nuclear factor erythroid 2 (Nrf2), and Bcl-2. Therefore, these data reveal that pomegranate peel has anti-inflammatory, antiapoptotic, free-radical-scavenging, and powerful antioxidant activity that protects against acrylamide toxicity.

5 March 2021 in Antibiotics
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Journal Article
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Ibrahim ElsohabyIbrahim Elsohaby
Ibrahim Elsohaby
Ahmed Samy IbrahimAhmed Samy Ibrahim
Ahmed Samy Ibrahim
AEAhmed Elmoslemany
Ahmed Elmoslemany
MAMohammed Alorabi
Mohammed Alorabi
Mohamed AlkafafyMohamed Alkafafy
Mohamed Alkafafy
Mahmoud FayezMahmoud Fayez
Mahmoud Fayez
Migratory wild birds acquire antimicrobial-resistant (AMR) bacteria from contaminated habitats and then act as reservoirs and potential spreaders of resistant elements through migration. However, the role of migratory wild birds as antimicrobial disseminators in the Arabian Peninsula desert, which represents a transit point for birds migrating all over Asia, Africa, and Europe not yet clear. Therefore, the present study objective was to determine antimicrobial-resistant bacteria in samples collected from migratory wild birds around Al-Asfar Lake, located in Al-Ahsa Oasis, Eastern Saudi Arabia, with a particular focus on Escherichia coli virulence and resistance genes. Cloacal swabs were collected from 210 migratory wild birds represent four species around Al-Asfar. E. coli, Staphylococcus, and Salmonella spp. have been recovered from 90 (42.9%), 37 (17.6%), and 5 (2.4%) birds, respectively. Out of them, 19 (14.4%) were a mixed infection. All samples were subjected to AMR phenotypic characterization, and results revealed (14–41%) and (16–54%) of E. coli and Staphylococcus spp. isolates were resistant to penicillins, sulfonamides, aminoglycoside, and tetracycline antibiotics. Multidrug-resistant (MDR) E. coli and Staphylococcus spp. were identified in 13 (14.4%) and 7 (18.9%) isolates, respectively. However, none of the Salmonella isolates were MDR. Of the 90 E. coli isolates, only 9 (10%) and 5 (5.6%) isolates showed the presence of eaeA and stx2 virulence-associated genes, respectively. However, both eaeA and stx2 genes were identified in four (4.4%) isolates. None of the E. coli isolates carried the hlyA and stx1 virulence-associated genes. The E. coli AMR associated genes blaCTX-M, blaTEM, blaSHV, aac(3)-IV, qnrA, and tet(A) were identified in 7 (7.8%), 5 (5.6%), 1 (1.1%), 8 (8.9%), 4 (4.4%), and 6 (6.7%) isolates, respectively. While the mecA gene was not detected in any of the Staphylococcus spp. isolates. Regarding migratory wild bird species, bacterial recovery, mixed infection, MDR, and AMR index were relatively higher in aquatic-associated species. Overall, the results showed that migratory wild birds around Al-Asfar Lake could act as a reservoir for AMR bacteria enabling them to have a potential role in maintaining, developing, and disseminating AMR bacteria. Furthermore, results highlight the importance of considering migratory wild birds when studying the ecology of AMR.

1 August 2021 in Aquaculture
Verified
Journal Article
Closed access
SAShaimaa A.A. Ahmed
Shaimaa A.A. Ahmed
RIRowida E. Ibrahim
Rowida E. Ibrahim
KFKhaled Yehia Farroh
Khaled Yehia Farroh
AMAmr A. Moustafa
Amr A. Moustafa
Naif Ahmed Al-GabriNaif Ahmed Al-Gabri
Naif Ahmed Al-Gabri
SAShimaa A. Amer
Shimaa A. Amer

1 January 2022 in Aquaculture
Verified
Journal Article
Closed access
DEDoaa A. El-Araby
Doaa A. El-Araby
SAShimaa A. Amer
Shimaa A. Amer
GAGhadeer A. Attia
Ghadeer A. Attia
AOAli Osman
Ali Osman
EFEsraa M. Fahmy
Esraa M. Fahmy
STSamar A. Tolba
Samar A. Tolba

26 March 2021 in Fish Physiology and Biochemistry
Verified
Journal Article
Closed access
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MDMahmoud A.O. Dawood
Mahmoud A.O. Dawood
MAMohamed F. Ali
Mohamed F. Ali
AAAsem A. Amer
Asem A. Amer
MGMahmoud S. Gewaily
Mahmoud S. Gewaily
MMMona M. Mahmoud
Mona M. Mahmoud
HDHien Van Doan
Hien Van Doan

2 January 2020 in Foods
Verified
Journal Article
Open access
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Samy sayedSamy sayed
Samy sayed
MAMohamed AHMED
Mohamed AHMED
AEAhmed El-Shehawi
Ahmed El-Shehawi
Mohamed AlkafafyMohamed Alkafafy
Mohamed Alkafafy
SASaqer Alotaibi
Saqer Alotaibi
SESamir El-Shazly
Samir El-Shazly
Obesity is a serious global problem that causes predisposition to numerous serious diseases. The current study aims to investigate the effect of ginger water on body weight and energy expenditure through modulation of mRNA expression of carbohydrate and lipid metabolism. A white colored liquid obtained during freeze-drying of fresh rhizomes of Zingiber officinal was collected and named ginger water. It was used to treat rats, then blood and tissue samples were collected from the liver and white adipose at the end of the experiment. The serum was prepared and used for biochemical assays, while tissue samples were used for RNA isolation and gene expression analysis via Reverse transcription polymerase chain reaction (RT-PCR). Results of High Performance Liquid Chromatography (HPLC) analysis of ginger water revealed the presence of chrysin and galangin at concentrations of 0.24 µg/mL and 0.53 µg/mL, respectively. Average body weight gain decreased significantly in groups that received ginger water. In addition, both total cholesterol and serum triacylglycerol were reduced in the groups that received ginger water. Furthermore, mRNA expression of Sterol regulatory element-binding protein 1 (SREBP-1c) in the liver and leptin in adipose tissues were downregulated, while those of adiponectin, hepatic carnitine palmitoyltransferase1 (CPT-1), acyl-coA oxidase (ACO), Glucose transporter 2 (GLUT-2), and pyruvate kinase (PK) were upregulated in ginger water-treated groups. These results clearly revealed the lowering body weight gain effect of ginger water, which most likely occurs at the transcriptional level of energy metabolizing proteins.