Publications

Export 8315 results:
Sort by: Author Title [ Type  (Asc)] Year
Journal Article
Said, M., H. Omar, Z. Soliman, Y. Saad, H. Dabes, S. Hamed, K. ElSaeed, Y. ElShazly, and M. ElSerafy, "Ritonavir-boosted paritaprevir, ombitasvir plus ribavirin could improve eGFR in patients with renal impairment and HCV: an Egyptian cohort.", Expert review of gastroenterology & hepatology, vol. 13, issue 1, pp. 89-93, 2019 Jan. Abstract

BACKGROUND: The present study aimed at evaluation of changes in estimated glomerular filtration rate (eGFR) among chronic Hepatitis C virus (HCV) patients with chronic kidney disease (CKD) Stages 3-5 who were treated with 12 weeks of ritonavir-boosted paritaprevir, ombitasvir plus ribavirin.

METHODS: Changes in renal functions were compared across follow up time points (baseline, SVR4, and SVR8). Data on on-treatment adverse events (AEs), serious AEs, laboratory abnormalities, treatment discontinuation were collected.

RESULTS: 171 patients were included (females 35%, mean age 53 years). 29 patients had liver cirrhosis. The most common etiologies of CKD were diabetes and/or hypertension (n = 67). All included patient reached the end of treatment (EOT) with no treatment discontinuations. The overall EOT response was 100%. 122/122 (100%) patients who reached 4 weeks post-treatment have achieved SVR4, and 80/80 (100%) have achieved SVR12. No reported SAEs. Ribavirin therapy was interrupted in 25% (43/171) of patients due to anemia; 16 patients required blood transfusions. The median eGFR improved from 33.5 (15) mL/min/1.73 m at baseline to 35 (36) mL/min/1.73 m2 at SVR8 (p = 0.0003).

CONCLUSIONS: The use of ombitasvir, paritaprevir, and ritonavir for treatment of HCV-infected patients with advanced renal disease was safe and effective, moreover, it was associated with significantly improved eGFR.

Said, M., H. Omar, Z. Soliman, Y. Saad, H. Dabes, S. Hamed, K. ElSaeed, Y. ElShazly, and M. ElSerafy, "Ritonavir-boosted paritaprevir, ombitasvir plus ribavirin could improve eGFR in patients with renal impairment and HCV: an Egyptian cohort.", Expert review of gastroenterology & hepatology, vol. 13, issue 1, pp. 89-93, 2019. Abstract

BACKGROUND: The present study aimed at evaluation of changes in estimated glomerular filtration rate (eGFR) among chronic Hepatitis C virus (HCV) patients with chronic kidney disease (CKD) Stages 3-5 who were treated with 12 weeks of ritonavir-boosted paritaprevir, ombitasvir plus ribavirin.

METHODS: Changes in renal functions were compared across follow up time points (baseline, SVR4, and SVR8). Data on on-treatment adverse events (AEs), serious AEs, laboratory abnormalities, treatment discontinuation were collected.

RESULTS: 171 patients were included (females 35%, mean age 53 years). 29 patients had liver cirrhosis. The most common etiologies of CKD were diabetes and/or hypertension (n = 67). All included patient reached the end of treatment (EOT) with no treatment discontinuations. The overall EOT response was 100%. 122/122 (100%) patients who reached 4 weeks post-treatment have achieved SVR4, and 80/80 (100%) have achieved SVR12. No reported SAEs. Ribavirin therapy was interrupted in 25% (43/171) of patients due to anemia; 16 patients required blood transfusions. The median eGFR improved from 33.5 (15) mL/min/1.73 m at baseline to 35 (36) mL/min/1.73 m2 at SVR8 (p = 0.0003).

CONCLUSIONS: The use of ombitasvir, paritaprevir, and ritonavir for treatment of HCV-infected patients with advanced renal disease was safe and effective, moreover, it was associated with significantly improved eGFR.

Said, M., H. Omar, Z. Soliman, Y. Saad, H. Dabes, S. Hamed, K. ElSaeed, Y. ElShazly, and M. ElSerafy, "Ritonavir-boosted paritaprevir, ombitasvir plus ribavirin could improve eGFR in patients with renal impairment and HCV: an Egyptian cohort.", Expert review of gastroenterology & hepatology, vol. 13, issue 1, pp. 89-93, 2019. Abstract

BACKGROUND: The present study aimed at evaluation of changes in estimated glomerular filtration rate (eGFR) among chronic Hepatitis C virus (HCV) patients with chronic kidney disease (CKD) Stages 3-5 who were treated with 12 weeks of ritonavir-boosted paritaprevir, ombitasvir plus ribavirin.

METHODS: Changes in renal functions were compared across follow up time points (baseline, SVR4, and SVR8). Data on on-treatment adverse events (AEs), serious AEs, laboratory abnormalities, treatment discontinuation were collected.

RESULTS: 171 patients were included (females 35%, mean age 53 years). 29 patients had liver cirrhosis. The most common etiologies of CKD were diabetes and/or hypertension (n = 67). All included patient reached the end of treatment (EOT) with no treatment discontinuations. The overall EOT response was 100%. 122/122 (100%) patients who reached 4 weeks post-treatment have achieved SVR4, and 80/80 (100%) have achieved SVR12. No reported SAEs. Ribavirin therapy was interrupted in 25% (43/171) of patients due to anemia; 16 patients required blood transfusions. The median eGFR improved from 33.5 (15) mL/min/1.73 m at baseline to 35 (36) mL/min/1.73 m2 at SVR8 (p = 0.0003).

CONCLUSIONS: The use of ombitasvir, paritaprevir, and ritonavir for treatment of HCV-infected patients with advanced renal disease was safe and effective, moreover, it was associated with significantly improved eGFR.

Said, M., H. Omar, Z. Soliman, Y. Saad, H. Dabes, S. Hamed, K. ElSaeed, Y. ElShazly, and M. ElSerafy, "Ritonavir-boosted paritaprevir, ombitasvir plus ribavirin could improve eGFR in patients with renal impairment and HCV: an Egyptian cohort.", Expert review of gastroenterology & hepatology, vol. 13, issue 1, pp. 89-93, 2019. Abstract

BACKGROUND: The present study aimed at evaluation of changes in estimated glomerular filtration rate (eGFR) among chronic Hepatitis C virus (HCV) patients with chronic kidney disease (CKD) Stages 3-5 who were treated with 12 weeks of ritonavir-boosted paritaprevir, ombitasvir plus ribavirin.

METHODS: Changes in renal functions were compared across follow up time points (baseline, SVR4, and SVR8). Data on on-treatment adverse events (AEs), serious AEs, laboratory abnormalities, treatment discontinuation were collected.

RESULTS: 171 patients were included (females 35%, mean age 53 years). 29 patients had liver cirrhosis. The most common etiologies of CKD were diabetes and/or hypertension (n = 67). All included patient reached the end of treatment (EOT) with no treatment discontinuations. The overall EOT response was 100%. 122/122 (100%) patients who reached 4 weeks post-treatment have achieved SVR4, and 80/80 (100%) have achieved SVR12. No reported SAEs. Ribavirin therapy was interrupted in 25% (43/171) of patients due to anemia; 16 patients required blood transfusions. The median eGFR improved from 33.5 (15) mL/min/1.73 m at baseline to 35 (36) mL/min/1.73 m2 at SVR8 (p = 0.0003).

CONCLUSIONS: The use of ombitasvir, paritaprevir, and ritonavir for treatment of HCV-infected patients with advanced renal disease was safe and effective, moreover, it was associated with significantly improved eGFR.

Elgazzar, K., W. Ibrahim, S. Oteafy, and H. S. Hassanein, "RobP2P: A Robust Architecture for Resource Sharing in Mobile Peer-to-Peer Networks", Procedia Computer Science, vol. 19: Elsevier, pp. 356–363, 2013. Abstract
n/a
Liu, X., Y. Xu, J. Li, X. Ong, S. A. Ibrahim, T. Buonassisi, and X. Wang, "A robust low data solution: Dimension prediction of semiconductor nanorods", Journal of Computers & Chemical Engineering, vol. 150, issue 107315, pp. 1-10. doi: 10.1016/j.compchemeng.2021.107315, 2021.
Omar, W., S. Eissa, H. Moustafa, H. Farag, E. Ezzat, and H. Abd El Dayem, "Role of 201Tl chloride, 99mTc-MIBI in the evaluation of breast masses: Correlation with the immunohistochemical characteristic parameters (Ki-67, PCNA, BCl2 and Angiogenesis) in malignant lesions", Anticancer Research, vol. 17, pp. 1639 - 1644, 1997.
Ali, M. T., M. F. Osman, M. D. Homos, and D. M. Nabil, "Role of 3-T diffusion-weighted magnetic resonance imaging in differentiation between benign and malignant hepatic lesions", The Egyptian Journal of Radiology and Nuclear Medicine, vol. 47, issue 2016, pp. 1231-1241, Submitted.
Salman OGA, Samah E Abodalal, Abd-ElSabour MAA, Abd-Rabo MA, Ekram S Mahmoud, L. M. Omar, and S. S. Abdelgayed, "Role of a Locally Prepared Bivalent Inactivated Infectious Bronchitis Virus (IBV) Vaccine within Vaccination Program to Control Infectious Bronchitis Disease in Layer Chickens.", Inter J Vet Sci, vol. 8, issue 3, pp. 161-167, 2019.
Osman, A. A., and A.A.Farahat, "The role of a native population of Pasteuria penetrans in controlling the root-knot nematode, Meloidogyne javanica infecting tomato. ", Annals of Agric. Sc., Moshtohor,, vol. 31, issue 2, pp. 1227-1233, 1993.
El-Hawarya, S. S., H. M. EL-Hefnawya, M. N. Elemeeryb, S. M. Osman, M. A. El-Raey, F. A. Mokhtar, Cheol H. Pand, and H. A. Ibrahimi, "The role of active metabolites isolated from Jasminum multiflorum flowers against hepatitis C virus infection and related hepatocellular carcinoma", Natural Product Research, vol. 36, issue 10, pp. 2625-2629, 2022.
Abdel-Wahab, M. M., and M. Omran, "The role of Aerosols in climate of Cairo City.", Journal of Theoretical and applied climatology, 1995.
Elbayoumy1, M. K., A. M. Allam, S. T. Omara, E. A. Elgabry, and S. S. Abdelgayed, "Role of Artesunate in Potentiation of β-lactam Against Methicillin Resistant Staphylococcus aureus (MRSA) Isolated from Bovine Mastitis and its Histopathology Impact In-Vivo Study", International Journal of Veterinary Science, vol. 9, issue 3, pp. 337-342, 2020. 337-342.pdf
Hendy, H. H., H. I. El-Nagar, A. A. Osman, and A. A. Farahat, "The role of biological agents in regulating plant-parasitic nematodes infecting tomato plants.", Egypt. J. of Appl. Sci., 9 (5) : 313-330., vol. 9, issue 5, pp. 313-330, 1994.
El-Mosalamy, H., T. M. Salman, A. M. Ashmawey, and N. Osama, "Role of chronic E. coli infection in the process of bladder cancer- an experimental study", Infectious Agents and Cancer , pp. 7-19, 2012. e_coli.pdf
Sayyouh, M. H., A. Al-Sughayer, A. Omar, and A. Dahab, "Role of clays in alkaline water flooding in high salinity reservoir", J. Engineering and Applied Science Cairo University, vol. 40, issue 3, 1993. role_of_clays_in_alkaline_waterflooding.pdf
Dahab, A. S., A. Omar, M. H. Sayyouh, and A. Heimeda, "Role of clays in influencing permeability damage, capillary pressure and wettability characteristics", Japan Petroleum Institute Journal, vol. 35, issue 3, 1993.
M.H.Helal, S.M.Mansour, H.A.Ahmed, A. F. A. Ghany, O.F.Kamel, and N.G.Elkholy, "The role of contrast-enhanced spectral mammography in the evaluation of the postoperative breast cancer", Clinical Radiology , vol. 74, issue 10, pp. 771-781, 2019.
Gowily, A. M., M. A. Mostafa, S. I. Gamila, and S. a Omar, "Role of copper sulphate and zinc sulphate as seed treatment in controlling dagmping-off disease caused by Rhizoctoniasolaniin lupine plants", Egypt. J. Appl. Sci.,, vol. 10, issue 6, pp. 462-472, 1995.
Ahmed, M. A., and N. Okasha, "Role of Cu2+ concentration on the structure and transport properties of Cr-Zn ferrites", Journal of Magnetism and Magnetic Materials, vol. 321, issue 20, pp. 3436 - 3441, 2009. AbstractWebsite

The influence of Cu concentration on the transport and microstructure characteristics of CuyZn1-yCr0.8Fe1.2O4 with 0.2≤y≤1 ferrite was studied. X-ray, energy dispersive X- ray (EDAX) and infrared spectra (IR) were carried out to assure the formation of the sample in the proper form. The dielectric constant (ε′) and ac conductivity were measured at different frequencies ranging from 600 kHz to 5 MHz from room temperature up to 800 K. The obtained data reveals that, a single phase cubic spinel structure for all the concentrations. From the results of IR spectra, mainly two bands were observed. The dielectric constant and the dielectric loss tangent decrease with increasing frequency and Cu concentration. The dielectric constant shows a dispersion peak (ε′max) which shifts to higher frequency with increasing the temperature. The results are explained as due to the fact that the dielectric polarization process is similar to that of conduction. The appearance of the dispersion peak is related to the contribution of two types of charge carriers. © 2009 Elsevier B.V. All rights reserved.

Bahnassy, A. A., A. - R. N. Zekri, S. A. Loutfy, W. S. Mohamed, A. A. Moneim, S. E. Salem, M. M. Sheta, A. Omar, and H. Al-Zawahry, "The role of cyclins and cyclin dependent kinases in development and progression of hepatitis C virus-genotype 4-associated hepatitis and hepatocellular carcinoma.", Experimental and molecular pathology, vol. 91, issue 2, pp. 643-52, 2011 Oct. Abstract

UNLABELLED: Altered cell cycle regulatory genes expression contributes to HCV-associated liver disease. We sought to assess the role of cyclins and cyclin dependent kinases (CDKs) in HCV-associated CH and HCC. Aberrant expression of cyclins A, E, D1, CDK2 and CDK4 was assessed by immunohistochemistry and differential PCR in HCV-associated CH and HCC with pericarcinomatous foci (PCF). S phase fraction (SPF) was determined by flow cytometry. Results were correlated with overall survival (OS) in HCC patients. In HCC, cyclins A, E, D1, CDK2 and CDK4 protein overexpression was detected in 52.8%, 52.8%, 69%, 47% and 58% compared to 36.1%, 33%, 56%, 27.8%, 55.6% for CH and 36.1%, 27%, 30.6%, 27%, 50% for PCF. Gene amplification was detected in 38.9%, 33% 66%, 33%, 44% of HCC compared to 27.8%, 25%, 44%, 27.8%, 36% in CH and 25%, 22.2%, 38.9%, 27%, 33% in PCF. A significant difference was reported between HCC, CH, NHT regarding cyclins A, E, D1, CDK2 (p=0.007, p=0.002, p=0.047, p=0.002) protein expression (ADD) and cyclin D1 amplification (p=0.009). Cyclins A, E, CDK2 expression was associated with fibrosis in CH (p=0.004, p=0.02, p=0.012). Reduced OS was (ADD) associated with cyclin D1 and cyclin A, grade, stage and metastasis (p=0.001, p=0.02, p=0.018, p=0.01, p=0.001).

CONCLUSIONS: Increased cyclins A, E, D1, CDK2 and CDK4 expression is important for HCV-associated CH and HCC. Cyclin D1 and cyclin A are prognostic biomarkers associated with reduced OS in HCC. Cyclin D1 aberration could identify high risk groups of CH patients prone to develop HCC.

Bahnassy, A. A., A. - R. N. Zekri, S. A. Loutfy, W. S. Mohamed, A. A. Moneim, S. E. Salem, M. M. Sheta, A. Omar, and H. Al-Zawahry, "The role of cyclins and cyclin dependent kinases in development and progression of hepatitis C virus-genotype 4-associated hepatitis and hepatocellular carcinoma.", Experimental and molecular pathology, vol. 91, issue 2, pp. 643-52, 2011 Oct. Abstract

UNLABELLED: Altered cell cycle regulatory genes expression contributes to HCV-associated liver disease. We sought to assess the role of cyclins and cyclin dependent kinases (CDKs) in HCV-associated CH and HCC. Aberrant expression of cyclins A, E, D1, CDK2 and CDK4 was assessed by immunohistochemistry and differential PCR in HCV-associated CH and HCC with pericarcinomatous foci (PCF). S phase fraction (SPF) was determined by flow cytometry. Results were correlated with overall survival (OS) in HCC patients. In HCC, cyclins A, E, D1, CDK2 and CDK4 protein overexpression was detected in 52.8%, 52.8%, 69%, 47% and 58% compared to 36.1%, 33%, 56%, 27.8%, 55.6% for CH and 36.1%, 27%, 30.6%, 27%, 50% for PCF. Gene amplification was detected in 38.9%, 33% 66%, 33%, 44% of HCC compared to 27.8%, 25%, 44%, 27.8%, 36% in CH and 25%, 22.2%, 38.9%, 27%, 33% in PCF. A significant difference was reported between HCC, CH, NHT regarding cyclins A, E, D1, CDK2 (p=0.007, p=0.002, p=0.047, p=0.002) protein expression (ADD) and cyclin D1 amplification (p=0.009). Cyclins A, E, CDK2 expression was associated with fibrosis in CH (p=0.004, p=0.02, p=0.012). Reduced OS was (ADD) associated with cyclin D1 and cyclin A, grade, stage and metastasis (p=0.001, p=0.02, p=0.018, p=0.01, p=0.001).

CONCLUSIONS: Increased cyclins A, E, D1, CDK2 and CDK4 expression is important for HCV-associated CH and HCC. Cyclin D1 and cyclin A are prognostic biomarkers associated with reduced OS in HCC. Cyclin D1 aberration could identify high risk groups of CH patients prone to develop HCC.

Saleh, A. H., P. F. Hassan, M. Elayashy, H. M. Hamza, M. H. Abdelhamid, M. A. Madkour, P. Z. Tawadros, H. Omar, M. M. Kamel, M. Zayed, et al., "Role of dexamethasone in the para-vertebral block for pediatric patients undergoing aortic coarctation repair. randomized, double-blinded controlled study", BMC anesthesiology, vol. 18, pp. 178, 2018. role_of_dexamethasone_in_the_para-vertebral_block_.pdf
Abdealziz, O., S. Emad-Eldin, A. Osman, and A. Hussein, "Role of Doppler Ultrasonography in Defining Normal and Abnormal Graft Hemodynamics After Living-Donor Liver Transplant", Experimental and clinical transplantation, vol. 15, issue 3 , pp. 306-313, 2017. ectrxcontentshow.pdf
Abdelaziz, O., S. Emad-Eldin, A. Hussein, and A. M. A. Osman, "Role of Doppler Ultrasonography in Defining Normal and Abnormal Graft Hemodynamics After Living-Donor Liver Transplant.", Experimental and clinical transplantation : official journal of the Middle East Society for Organ Transplantation, vol. 15, issue 3, pp. 306-313, 2017 Jun. Abstractrole_of_doppler_ultrasonography_in_defining_normal_and_abnormal_graft_hemodynamics_after_living-donor_liver_transplant.pdf

OBJECTIVES: Our aim was to investigate the early changes that occur after graft perfusion in living-donor liver transplant by Doppler ultrasonography.

MATERIALS AND METHODS: We prospectively evaluated liver grafts of 30 patients who underwent living-donor liver transplant during an 18-month period and who were followed for 1 year postoperatively. The hepatic artery peak systolic velocity, resistivity index, portal vein velocity, portal vein anastomotic velocity ratio, and hepatic vein pattern were compared after excluding patients who developed vascular complications and acute rejection episodes.

RESULTS: We observed intraoperative increases in the mean hepatic artery peak systolic velocity (96.3 ± 65 cm/s), the resistivity index (0.78 ± 0.091), and the portal vein velocity (99.6 ± 48 cm/s), which started to normalize after 2 weeks. In comparing the mean portal vein velocity, portal vein anastomotic velocity ratio, hepatic artery peak systolic velocity, and resistivity index after excluding 5 patients who developed vascular complications, we observed overall significance levels of P < .001, P = .039, P < .001, and P = .040. After we excluded 9 patients who developed acute rejection, our comparison of the portal vein velocity, hepatic artery peak systolic velocity, and resistivity index showed overall significance (P < .001, P < .001, and P = .043).

CONCLUSIONS: Early and transient increases in portal vein velocity, anastomotic velocity ratio, hepatic artery peak systolic velocity, and resistivity index are common after living-donor liver transplant, with significant declines in the first 2 weeks posttransplant.

Tourism