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275 results on '"Fouad, Hassan"'

4. Active role of lactoferrin on arsenic and imidacloprid toxicity in broiler chicks

Author

Marwa Fouad Hassan, Asmaa Gamal Abd El Monsef, Nermin Farouq El Zohairy, Sanaa Mohamed Salem, Safaa Mohamed Elmesalamy, Hamada Mahmoud Yousif, and Mogda Kamel Mansour

Subjects
lactoferrin effect, arsenic toxicity, imidacloprid toxicity, histopathology, broilers chicks, Veterinary medicine, SF600-1100
Abstract

This work aimed to evaluate the lactoferrin (LF) effect on arsenic (As) and imidacloprid (IMI) toxicity in broiler chicks. One-week old broiler chicks (n=105) were divided into seven groups (x15 each). The animals were orally supplemented with As, IMI, and/or LF for 4 weeks as follows: Control (G1) no supplements, G2 supplemented with As, G3 supplemented with IMI, G4 supplemented with As+IMI, G5 supplemented with As+LF, G6 supplemented with IMI+LF, G7 supplemented with As+IMI+LF. Body weight and weight gain were recorded on weekly interval. Blood, serum, liver, kidney, and muscle samples were collected at the end of the experimental period for biochemical and histopathological examination. Body weight performance, hematological, serum, and liver tissue biochemical analysis revealed adverse changes in G2, G3, and G4 compared to control, G5, G6, and G7. There was higher tissue residue of As and IMI in G4 compared to G5, G6, and G7. Liver histopathological changes in the groups supplemented with As and/or IMI were observed with necrosis, congestion, and inflammatory cell aggregates. The use of LF in broiler chicks improves weight gain performance and modulates the adverse effects of As and/or IMI toxicity.

Published
2024
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17. Effectiveness of i-PRF in periodontal regeneration – A systematic review and meta-analysis

Author

Fawaz Pullishery, Mustafa Hussein Alattas, Mohamed Roshdy Abdelrasoul, Ahmed Fouad Hassan, Dina Abdelhamid Ahmed Derbala, and Shermin Hashir

Subjects
Periapical healing, Diabetes mellitus, Non-surgical endodontic intervention, Endodontic success, Root canal, Medicine, Dentistry, RK1-715
Abstract

Background: Periapical diseases are common dental conditions that require non-surgical endodontic intervention (NEI) for successful treatment. However, the impact of diabetes mellitus (DM) on the periapical healing (PH) outcome in diabetic patients remains somewhat unclear. This review aimed to evaluate the PH outcome following endodontic intervention among DM-afflicted individuals. Methods: A comprehensive search was conducted across multiple electronic databases to identify relevant studies. Specifically devised selection criteria were applied to select studies that assessed PH outcomes in DM sufferers undergoing different treatment protocols. Data extraction and quality assessment were performed following predetermined protocols. ROB – 2 risk assessment tool assessed quality of the included studies. Results: A total of 11 studies met the inclusion criteria and were included in the investigation. Four studies showed greater occurrence of apical periodontitis and five of them reduced healing and success rate in diabetic as compared to controls. Overall, nine studies showed that diabetes mellitus affected periapical outcome negatively. This suggests that diabetes mellitus is an important factor in the prognosis of endodontic intervention. Assessment tools used were PAI, PR, SC and FD analysis. RoB-2 assessed the included studies to have moderate risk of bias. Conclusion: This review provided compelling evidence that DM patients experienced a noticeable negative impact on PH outcome as compared to control population. These findings highlight the importance of considering the diabetic status of patients when assessing the prognosis of periapical diseases and planning NEI interventions. Further research is needed to validate these findings and explore potential mechanisms underlying the observed associations.

Published
2024
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22. Overview on antioxidant and oxidative stress markers after garlic oil supplement in suckling buffalo calves

Author

Hamada Mahmoud YOUSIF, Ahmed Mohamed EL MAHDY, Marwa Fouad HASSAN, and Mogda Kamel MANSOUR

Subjects
antioxidant, buffalo calves, electrophoresis, garlic oil, oxidative stress, vitamin, Veterinary medicine, SF600-1100
Abstract

Calves during the suckling period have serious attention and induce immense bearing on early maturity and production. This work aimed to scrutinize the affections of garlic oil supplements on antioxidants, oxidative stress, and immune response in suckling buffalo calves. To achieve this aim we used twenty suckling buffalo calves, and divided them into two groups. The first group (n=10) did not receive any supplement, and the second group (n=10) received garlic oil as a supplement 5 mL/calf/day orally for 7 days. Whole blood and serum samples were collected on the 1st, 3rd, 5th, and 7th day of supplement from all calves. Our data showed that the supplemented garlic oil significantly increase lysated blood and serum SOD, CAT, GSH, and TAC levels, while a gradual decrease in MDA and non-significant changes in NO as indicators of oxidative stress, associated with a significant increase in serum vitamins A and E, selenium, iron, and zinc. Total protein, albumin, globulin, γ1, γ2, α1, α2 were gradually and significantly increased in comparison with the non-supplemented control group. In conclusion, garlic oil supplement have promotives effects on enzymatic and non-enzymatic antioxidant system, immunity, nutrient utilization required for immunity modulation and regulation in calves.

Published
2023
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32. Fabrication and characterization of polylactic acid/natural fiber extruded composites

Author

Alothman, Othman Y., Awad, Sameer, Siakeng, Ramengmawii, Khalaf, Eman M., Fouad, Hassan, El-salam, Nasser M. Abd, Ahmed, Faraz, and Jawaid, M.

Subjects
Lactic acid -- Usage, Polymeric composites -- Mechanical properties -- Chemical properties -- Production processes, Engineering and manufacturing industries, Science and technology
Abstract

In this work, the fabricated polylactic acid (PLA) and hybrid natural fiber (NF) biocomposites via a melt extrusion method were investigated. NFs from locally grown plants were utilized as fillers. Polyethene glycol (PEG) was used as the plasticizer to improve the processability of the PLA. The effect of PLA/NF biocomposite processing was assessed by mechanical characterization (tensile, modulus, strain at break, and impact tests), and thermal properties (thermogravimetric analysis and differential scanning calorimetry [DSC] analysis). The dynamic mechanical analysis (DMA), and thermo-mechanical analysis (TMA) of the samples were also analyzed. The mechanical properties of PLA/NF biocomposites improved as compared with that of PLA. The DMA findings show that the storage modulus and loss modulus exhibited a slight reduction for PLA/NF biocomposites compared with the PLA sample. In opposite, the glass transition temperature ([T.sub.g]) from DSC thermogram results showed no obvious changes in values compared with the PLA sample. Furthermore, the findings of TMA showed a significant decrease in coefficient of thermal expansion values of PLA/NF biocomposites compared with those of PLA samples. The overall findings from this work indicated that PLA/NF biocomposites have the potential to make novel biocomposites and suitable for further application especially in biomedical applications due to its good stiffness, tensile strength, and dimensional stability. KEYWORDS mechanical properties, morphological properties, natural fibers, polylactic acid, thermal properties, orcid.org/0000-0002-9194-719X orcid.org/0000-0001-5348-5740 1 | INTRODUCTION The reinforcement of biofiber provides excellent characterizations and applications, and it offers lower cost in the present condition. In addition, biofiber composites are considered the [...]

Published
2023
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