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Journal Article
Okello, E., D. R. Williams, W. R. ElAshmawy, J. Adams, R. V. Pereira, T. W. Lehenbauer, and S. S. Aly, "Survey on Antimicrobial Drug Use Practices in California Preweaned Dairy Calves", Front Vet Sci, vol. 2021 Apr 22, issue 8, pp. 636670, 2021. Abstract

The California (CA) dairy industry was surveyed in July 2017 to evaluate producers' knowledge and perceptions and antimicrobial drug (AMD) use in preweaned dairy calves following the implementation of the nationwide veterinary feed directive final rule (VFD) in January 2017 and prior to statewide implementation of CA Senate Bill (SB) 27 in January 2018. Together, these regulations require veterinary oversight for all uses of medically important antimicrobial drugs (MIADs) administered to livestock in CA. Survey questionnaire was mailed to 1,361 CA Grade A milk producing dairies and calf ranches across CA resulting in a 12% (169) response. Most respondents (83%) were aware of the VFD and SB 27 changes. Use of antibiotics was perceived as important (77%) in raising preweaned dairy calves and judicious use of antibiotics was ranked as the most important antimicrobial stewardship practice, amongst record keeping, observing withdrawal periods, having a valid Veterinarian-Client-Patient-Relationship (VCPR), and use of alternatives to antibiotics. Treating sick calves was the major indication for AMD use (90.5%); however, few producers reported use of antibiotics to control (12.7%) or prevent disease (11%). Neomycin sulfate, chlortetracycline, oxytetracycline and sulfamethazine were the most used AMD. The respondents reported a decreased use of AMD in milk (10%) and in solid feed (5%), and discontinuation of one or more AMDs used in milk (18.6%) or in solid feed (5%) post-VFD rule implementation in 2017. Most respondents reported keeping treatment records and the information recorded included date (82%), dose (44%) and route (15%) of AMD used. A few respondents reported they had initiated use of alternatives to AMDs, such as vitamins (32.6%), minerals (25.6%), herbal remedies (11.6%) and pathogen specific antibodies (7%), post-VFD. The limited changes noted in AMD use could be attributed to the short period between the implementation of the VFD and the time of the survey. Our study outcomes identified opportunities to improve AMD use practices, including record keeping and use of AMD alternatives, and provides a baseline for future evaluation of the impact of these regulatory changes, as well as guidance for the future recommendations on best practices to promote judicious AMD use.

Osman, A. A. E., M. W. A. Shalaby, M. M. Soliman, and K. M. Elsayed, "A Survey on Attention-Based Models for Image Captioning", International Journal of Advanced Computer Science and Applications, vol. 14, issue 2, pp. 403-412, 2023.
Osman, K., A. rabiae, M. el mosalamy, S. marouf, and A. Orabi, "Survey on E.coli contamination of retail meat in giza market ", Journal of Egyptian veterinary medical association, vol. 75(2), pp. 939-947, 2015.
Omar, H. A., K. Abboud, N. Cheng, K. R. Malekshan, A. T. Gamage, and W. Zhuang, "A survey on high efficiency wireless local area networks: next generation WiFi", IEEE Communications Surveys & Tutorials, vol. 18, issue 4, pp. 2315 - 2344, 2016.
Othman, M. A., S. A. Mazen, and E. Ezzat, "Survey: Problems Related to Human in Software Projects", IOSR Journal of Computer Engineering (IOSR-JCE), vol. 10, no. 1, pp. 67–70, 2013. Abstract
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Othman, M. A., S. A. Mazen, and E. Ezzat, "Survey: Problems Related to Human in Software Projects", IOSR Journal of Computer Engineering, vol. 10, issue 1, pp. PP 67-70, 2013. k01016770.pdf
shimaa afify, B. Eysa, F. A. Hamid, O. M. Abo-Elazm, M. A. Edris, R. Maher, A. Abdelhalim, M. M. Abdel Ghaffar, D. A. Omran, and H. I. Shousha, "Survival and outcomes for co-infection of chronic hepatitis C with and without cirrhosis and COVID-19: A multicenter retrospective study.", World journal of gastroenterology, vol. 27, issue 42, pp. 7362-7375, 2021. Abstract

BACKGROUND: Chronic liver disease, particularly cirrhosis, is associated with worse outcomes in patients infected with coronavirus disease 2019 (COVID-19).

AIM: To assess outcomes of COVID-19 infection among patients with pre-existing hepatitis C with or without liver cirrhosis.

METHODS: This multicenter, retrospective cohort study included all cases of confirmed co-infection of severe acute respiratory syndrome coronavirus 2 and chronic hepatitis C with or without liver cirrhosis who were admitted to six hospitals (Al-Sahel Hospital, Al-Matareya Hospital, Al-Ahrar Hospital, Ahmed Maher Teaching Hospital, Al-Gomhoreya Hospital, and the National Hepatology and Tropical Medicine Research Institute) affiliated with the General Organization for Teaching Hospitals and Institutes in Egypt. Patients were recruited from May 1, 2020, to July 31, 2020. Demographic, laboratory, imaging features, and outcomes were collected. Multivariate regression analysis was performed to detect factors affecting mortality.

RESULTS: This retrospective cohort study included 125 patients with chronic hepatitis C and COVID-19 co-infection, of which 64 (51.20%) had liver cirrhosis and 40 (32.00%) died. Fever, cough, dyspnea, and fatigue were the most frequent symptoms in patients with liver cirrhosis. Cough, sore throat, fatigue, myalgia, and diarrhea were significantly more common in patients with liver cirrhosis than in non-cirrhotic patients. There was no difference between patients with and without cirrhosis regarding comorbidities. Fifteen patients (23.40%) with liver cirrhosis presented with hepatic encephalopathy. Patients with liver cirrhosis were more likely than non-cirrhotic patients to have combined ground-glass opacities and consolidations in CT chest scans: 28 (43.75%) 4 (6.55%), respectively ( value < 0.001). These patients also were more likely to have severe COVID-19 infection, compared to patients without liver cirrhosis: 29 (45.31%) 11 (18.04%), respectively ( value < 0.003). Mortality was higher in patients with liver cirrhosis, compared to those with no cirrhosis: 33 (51.56%) 9 (14.75%), respectively ( value < 0.001). All patients in Child-Pugh class A recovered and were discharged. Cirrhotic mortality occurred among decompensated patients only. A multivariate regression analysis revealed the following independent factors affecting mortality: Male gender (OR 7.17, 95%CI: 2.19-23.51; value = 0.001), diabetes mellitus (OR 4.03, 95%CI: 1.49-10.91; value = 0.006), and liver cirrhosis (OR 1.103, 95%CI: 1.037-1.282; value < 0.0001). We found no differences in liver function, COVID-19 disease severity, or outcomes between patients who previously received direct-acting antiviral therapy (and achieved sustained virological response) and patients who did not receive this therapy.

CONCLUSION: Patients with liver cirrhosis are susceptible to higher severity and mortality if infected with COVID-19. Male gender, diabetes mellitus, and liver cirrhosis are independent factors associated with increased mortality risk.

Lithy, R. M., T. Elbaz, A. H. Abdelmaksoud, M. M. Nabil, N. Rashed, D. Omran, A. O. Kaseb, A. O. Abdelaziz, and H. I. Shousha, "Survival and recurrence rates of hepatocellular carcinoma after treatment of chronic hepatitis C using direct acting antivirals.", European journal of gastroenterology & hepatology, 2020. Abstract

BACKGROUND: Conflicting studies were proposed either suggested or denied the relationship between early hepatocellular carcinoma (HCC) recurrence and the use of direct-acting antivirals (DAAs) for chronic hepatitis C management AIM OF THE STUDY: To evaluate HCC recurrence rate post-DAAs and potential predictive factors.Study This prospective cohort study included all HCC patients achieved complete response attending our multidisciplinary HCC clinic, Cairo University, from November 2013 to February 2018. Group I (60 patients) who received DAAs after HCC ablation and group II (273 patients) who were DAAs-untreated. We studied factors that could play a role in HCC recurrence.

RESULTS: The sustained virological response rate was 88.3% among DAA-treated patients. HCC recurrence rate was 45% in the post-DAA group vs. 19% in the non-DAAs group; P < 0.001. Mean survival was significantly higher in the post-DAA group (34.23 ± 16.16 vs. 23.92 ± 13.99 months respectively; P value <0.001). There was a significant correlation between HCC recurrence rate and age, male gender, mean size of tumors and time interval between complete HCC ablation and occurrence of HCC recurrence.

CONCLUSION: Our study reports high rate of HCC recurrence post-DAA therapy in patients treated with transarterial chemoembolization but not in those treated with curative measures. DAA therapy after curative treatment for HCC led to significantly earlier HCC recurrence, which correlated with specific clinic-pathologic features in our prospective single-institution study. However, future independent prospective randomized studies are warranted to evaluate this correlation which may lead to a change in the current standard-of-care approach to patients with hepatitis C virus-related HCC.

Spencer, B., M. Banerjee, S. Omar, H. Khaled, N. Anwar, M. S. Zaghloul, S. Eissa, C. G. Kleer, S. Dey, S. D. Merajver, et al., "Survival of Inflammatory Breast Cancer Patients Compared to Non-inflammatory Breast Cancer Patients in Egypt", Breast journal, 2011. Abstract

Inflammatory Breast Cancer (IBC) is a rare but aggressive form of breast cancer that is diagnosed clinically has characteristic clinical and biologic features suggestive of differences between IBC and non-IBC. Egypt has about a five times higher proportion of IBC patients than the USA with distinct molecular features of IBC tumors that may reflect amore aggressive nature of the disease .Within Egypt, there have been no past comparisons between IBC and non-IBC patients with respect to survival. Therefore, as a part of this study, we decided to compare survival of IBC and non-IBC patients while taking into account, the epidemiologic, pathologic, and treatment characteristics of these two groups of patients from the National Cancer Institute of Cairo University (NCI-Cairo) in Egypt. Patients included in this study were diagnosed and treated at NCI-Cairo from 2000 to 2005.

Spencer, B. a, M. b Banerjee, S. c Omar, H. c Khaled, N. c Anwar, M. S. c Zaghloul, S. c Eissa, C. G. d Kleer, S. e Dey, S. D. d Merajver, et al., "Survival of inflammatory breast cancer patients compared to non-inflammatory breast cancer patients in egypt", Breast Journal, vol. 17, no. 5, pp. 545-547, 2011. AbstractWebsite
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Spencer, B., M. Banerjee, S. Omar, H. Khaled, N. Anwar, M. S. Zaghloul, S. Eissa, C. G. Kleer, S. Dey, S. D. Merajver, et al., "Survival of inflammatory breast cancer patients compared to non-inflammatory breast cancer patients in Egypt.", The breast journal, vol. 17, issue 5, pp. 545-7, 2011 Sep-Oct. Abstract
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Mohamed, A. - A. H., A. H. Basher, J. Q. M. Almarashi, and S. A. Ouf, "Susceptibility of Staphylococcus epidermidis to Argon Cold Plasma Jet by Oxygen Admixture", Applied Sciences, vol. 11, no. 8, 2021. AbstractWebsite

Cold atmospheric pressure sterilization is one of the nominated and efficient techniques to prevent the spread of diseases. Reactive species such as O and OH and other radicals play a major role in the mechanism of plasma sterilization. Therefore, in this work, oxygen was mixed with different parentage from (0.2 to 1.2%) to argon to enhance the generation of the reactive species and increase the argon atmospheric pressure plasma sterilization efficacy. The emission spectra from the jet increase the radicle line intensities by increasing the percentage admixture of O2 with the argon gas to reach a maximum power at 0.8; then, it gradually decreases with a higher O2 percentage. The OH band intensity decreases with increasing the admixture of O2. The jet with different O2 percentages was tested against Gram-positive S. epidermidis, which is the causal agent of nosocomial infections. The maximum reduction in colony-forming units (CFU) was observed at 0.2% O2. No bacterial growth was observed at the later concentration applied for 8 min and the same case was detected at 0.4% O2 applied to 16 min.

Aziz, R. K., R. Kansal, N. F. Abdeltawab, S. L. Rowe, Y. Su, D. Carrigan, M. M. Nooh, R. R. Attia, C. Brannen, L. A. Gardner, et al., "Susceptibility to severe streptococcal sepsis: use of a large set of isogenic mouse lines to study genetic and environmental factors", Genes and immunity, vol. 8, no. 5: Nature Publishing Group, pp. 404–415, 2007. Abstract
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Aziz, R. K., R. Kansal, N. F. Abdeltawab, S. L. Rowe, Y. Su, D. Carrigan, M. M. Nooh, R. R. Attia, C. Brannen, L. A. Gardner, et al., "Susceptibility to severe streptococcal sepsis: use of a large set of isogenic mouse lines to study genetic and environmental factors", Genes and immunity, vol. 8, no. 5: Nature Publishing Group, pp. 404–415, 2007. Abstract
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Aziz, R. K., R. Kansal, N. F. Abdeltawab, S. L. Rowe, Y. Su, D. Carrigan, M. M. Nooh, R. R. Attia, C. Brannen, L. A. Gardner, et al., "Susceptibility to severe streptococcal sepsis: use of a large set of isogenic mouse lines to study genetic and environmental factors", Genes and immunity, vol. 8, no. 5: Nature Publishing Group, pp. 404–415, 2007. Abstract
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Shah, Z. A., M. A. Dar, E. A. Dar, C. A. Obianefo, A. H. Bhat, M. T. Ali, M. El-Sharnouby, M. Shukry, H. Kesba, and S. Sayed, "Sustainable Fruit Growing: An Analysis of Differences in Apple Productivity in the Indian State of Jammu and Kashmir", Sustainability , vol. 14, issue 21, pp. 14544, 2022. samy09_sustainability-14-14544.pdf
Salehi, B., F. Sharopov, T. B. Tumer, A. Ozleyen, C. Rodríguez-Pérez, S. M. Ezzat,, Jouini R, and et al, "Symphytum Species: A Comprehensive Review on Chemical Composition, Food Applications and Phytopharmacology", Molecules, vol. 24, issue 2272, pp. 1-33, 2019.
Osman, W. ’aA., D. A. LABIB, M. O. Abdelhallim, and E. M. Elrokh, "Synergistic analgesic, anti-pyretic and anti-inflammatory effects of extra virgin olive oil and ibuprofen in different experimental models in albino mice", international journal of rheumatic diseases, vol. 20, issue 10, pp. 1326-1336, 2017.
Ordóñez, N. G., S. M. Mahfouz, and B. Mackay, "Synovial sarcoma: an immunohistochemical and ultrastructural study", Human pathology, vol. 21, no. 7: Elsevier, pp. 733–749, 1990. Abstract
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Ordóñez, N. G., S. M. Mahfouz, and B. Mackay, "Synovial sarcoma: an immunohistochemical and ultrastructural study", Human pathology, vol. 21, no. 7: Elsevier, pp. 733–749, 1990. Abstract
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Allam, M., A. Omar, H. Derbala, E. E. shihy, and O. Dawoud, "SYNTAX SCORE II VERSUS EUROSCORE II: IN CABG RISK STRATIFICATION", JOURNAL OF CRITICAL REVIEWS, vol. VOL 7,, issue 2394-5125, pp. 19, 2020. 197-1603765429.pdf
Metwally, N. H., M. A. Badawy, and D. S. Okpy, "Synthesis and Anticancer Activity of Some New Thiopyrano[2,3- d] thiazoles Incorporating Pyrazole Moiety", Chemical & pharmaceutical bulletin, vol. 63, issue 7, pp. 495-503 , 2015.
Omaima M. Abdel Hafez, K. M. Amin, N. A. Abdel-Latif, and T. M. Tahia K. Mohamed, Eman Y. Ahmed, "Synthesis and Antitumor Activity of Some New Xanthotoxin Derivatives", European Journal of Medicinal Chemistry, vol. 44, pp. 2967-2974, 2009.