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Gaafar, K., H. el Nazer, S. Salama, and S. el Batran, "Study on the possible interaction between an ace inhibitor, a diuretic and an anti-inflammatory drug in normal rats.", Bollettino chimico farmaceutico, vol. 134, issue 4, pp. 216-219, 1995. Abstractstudy_on_the_possible_interaction.pdf

Captopril was effective in the long term reduction of serum sodium and aldosterone in normotensive rats, the addition of HCT produced a further decrease in serum sodium and was also useful in preventing hypokalemia produced by HCT. On the other hand, the concurrent therapy with Diclofenac attenuated the hypotensive effect of Captopril and HCT, it was observed that to combine Diclofenac with captopril was more beneficial as regards the metabolic parameters.

Gaafar, R. M., M. M. Hussein, N. M. A. Allahloubi, A. A. M. Warith, W. A. A. Allah, S. E. Salem, and E. A. M. Salam, "Toxicity and prediction of survival benefit with metronomic chemotherapy in metastatic breast cancer.", Journal of Clinical Oncology, vol. 32, issue 15_suppl, pp. 1045-1045, 2014.
Gaafar, R. M., V. F. Surmont, G. V. Scagliotti, R. V. J. Klaveren, D. Papamichael, J. J. Welch, B. Hasan, and V. T. P. andJan van Meerbeeck, "A Double-Blind, Randomised, Placebo-Controlled Phase III Intergroup Study of Gefitinib in Patients with Advanced NSCLC, non Progressing After First Line Platinum-Based Chemotherapy (EORTC 08021/ILCP 01/03)", European Journal of Cancer, 2011. Abstract

Background: EORTC study 08021/ILCP 01/03 evaluated the role of consolidation gefitinib, an oral tyrosine kinase inhibitor (TKI), administered in patients with advanced non-small cell lung cancer (NSCLC), not progressing following standard 1st-line chemotherapy.

Gaafar RM, H. M. M., A. W. A. M. Allahloubi NM, S. S. E. Abd Allah WA, and E. M. A. Salam, "Toxicity and prediction of survival benefit with metronomic chemotherapy in metastatic breast cancer.", Journal of Clinical Oncology, 2014 ASCO Annual Meeting , USA, Vol 32, No 15_suppl (May 20 Supplement),: Abstract 1045, 2014.
Gaafar", "K. M., "M. K. Gabr", and "D. F. Teleb", "The hormonal profile during the estrous cycle and gestation in Damascus goats", Small Ruminant Research, vol. 57, issue 1, pp. 85-93, 2005. the_hormonal_profile_in_damascus_goatsarticle.pdf
Gaafara, A. E. - D. M., R. M. Faty, A. S. Alya, and K. M. Abu-Zieda, Synthesis of new nitrogen bases derived from the nucleic acid nitrogen base uracil in targeting the modification of the nucleic acid systems., , Cairo, bDepartment of Chemistry, Faculty of Science, Cairo, University, Giza, Egypt, 2017. research_journal_of_pharmaceutical_biological_and_chemical_sciences_paper_alaa__rasha1.pdf
Gaafar×, K., "Glucose homeostasis in chloroquine-treated normal rats", journal of the egyptian german society of zoology, vol. 14 (A), pp. 177-189, 1994. Abstractglucose_homeostasis.pdf

Glucose tolerance (GT), peripheral insulin activity (A) and beta cell function (CIR) were improved on prolonged chloroquine administration to normal male rats, while the acute effects comprised hyperinsulinaemia with unaltered blood glucose levels. This study explains some of the seemingly conflicting results due to chloroquine treatment and concludes that the drug is not damaging to glucose homeostasis in long term treatment.

Gaafer, T., H. A. Dina Sabry, H. M. A. Sohair Mahfouz, A. A. Shamaa, and M. Ahmed, "Angiogenesis in rat ischemic hindlimb: role of human bone marrow-derived mesenchymal stem cells transplantation. ", Stem Cell Research & Therapy, 2012.
Gaafer, R. M., H. M.R, Z. K. Zikri, I. el-Attar, A. Moneim, H. M. Khaled, H. R. El-Zawahry, A. N.M, M.M.Saber, and G. E. - M. N, "Combination chemotherapy with Mitomycin, Vinblastine and Cisplatinum for advanced non-small cell lung cancer (NSCLC)", International congress on cancer, Cairo International Conference Center, Nov. 7-10, 1994.
Gabal, M.A., A. M. A., "Structural, electrical and magnetic properties of copper-cadmium ferrites prepared from metal oxalates", Journal of Materials Science, vol. 40, no. 2, pp. 387-398, 2005. AbstractWebsite

Seven samples of the system Cu1-x Cd x Fe 2O4 were prepared by thermal decomposition of mixed metal oxalates with x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1.0. The formation of the ferrispinel was studied by XRD, FT-IR, Mössbauer spectroscopy, electrical conductivity and magnetic susceptibility measurements. XRD showed single cubic spinel phase for all the samples except for CuFe2O4 sample which shows a tetragonal structure. An increase in the lattice parameter of the ferrispinel was observed with increasing the cadmium content. The temperature variation of ac conductivity showed four definite regions with three transitions which attribute to the change in the conduction mechanism with increasing temperature. Magnetic properties of the sample with x ≤ 0.5 showed a decrease in the effective magnetic moment with the increase in the cadmium content which means that the ferromagnetics are widely separated and enclosed by non-magnetic cadmium ions. A well defined hyperfine Zeeman spectrum is observed for samples with x ≥ 0.3 at room temperature and resolved into two sextets corresponding to the octahedral and tetrahedral sites. The propable ionic configuration of the system proposed is (Cd x Cu y Fe1-x-y )[Cu1-x-y Fe1+x+y ]O4. © 2005 Springer Science + Business Media, Inc.

Gabal, Y. M. a, A. O. a c Kamel, O. A. a Sammour, and A. H. b c c Elshafeey, "Effect of surface charge on the brain delivery of nanostructured lipid carriers in situ gels via the nasal route", International Journal of Pharmaceutics, vol. 473, no. 1-2, pp. 442-457, 2014. AbstractWebsite

The aim of this study was to investigate the influence of the nanocarrier surface charge on brain delivery of a model hydrophilic drug via the nasal route. Anionic and cationic nanostructured lipid carriers (NLCs) were prepared and optimized for their particle size and zeta potential. The optimum particles were incorporated in poloxamer in situ gels and their in vivo behavior was studied in the plasma and brain after administration to rats. Optimum anionic and cationic NLCs of size <200 nm and absolute zeta potential value of ≈34 mV were obtained. Toxicity study revealed mild to moderate reversible inflammation of the nasal epithelium in rats treated with the anionic NLCs (A7), and destruction of the lining mucosal nasal epithelium in rats treated with the cationic NLCs (C7L). The absolute bioavailability of both drug loaded anionic and cationic NLCs in situ gels was enhanced compared to that of the intranasal solution (IN) of the drug with values of 44% and 77.3%, respectively. Cationic NLCs in situ gel showed a non significant higher Cmax (maximum concentration) in the brain compared to the anionic NLCs in situ gel. Anionic NLCs in situ gel gave highest drug targeting efficiency in the brain (DTE%) with a value of 158.5 which is nearly 1.2 times that of the cationic NLCs in situ gel. © 2014 Elsevier B.V.

Gabal, S., Z. Ashour, G. Hamada, S. A. Aziz, H. Khairy, H. Badawy, E. M. Hamada, and K. Saied, "Low - grade endometrial stromal sarcoma with intravenous extension to the heart", medscape J Med, vol. 23, issue 11 , pp. 1-23, 2009.
Gabal, M. A., and M. A. Ahmed, "Structural, electrical and magnetic properties of copper-cadmium ferrites prepared from metal oxalates", Journal of Materials Science, vol. 40, issue 2, pp. 387 - 398, 2005. AbstractWebsite

Seven samples of the system Cu1-x Cd x Fe 2O4 were prepared by thermal decomposition of mixed metal oxalates with x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1.0. The formation of the ferrispinel was studied by XRD, FT-IR, Mössbauer spectroscopy, electrical conductivity and magnetic susceptibility measurements. XRD showed single cubic spinel phase for all the samples except for CuFe2O4 sample which shows a tetragonal structure. An increase in the lattice parameter of the ferrispinel was observed with increasing the cadmium content. The temperature variation of ac conductivity showed four definite regions with three transitions which attribute to the change in the conduction mechanism with increasing temperature. Magnetic properties of the sample with x ≤ 0.5 showed a decrease in the effective magnetic moment with the increase in the cadmium content which means that the ferromagnetics are widely separated and enclosed by non-magnetic cadmium ions. A well defined hyperfine Zeeman spectrum is observed for samples with x ≥ 0.3 at room temperature and resolved into two sextets corresponding to the octahedral and tetrahedral sites. The propable ionic configuration of the system proposed is (Cd x Cu y Fe1-x-y )[Cu1-x-y Fe1+x+y ]O4. © 2005 Springer Science + Business Media, Inc.

Gabal, M.A., A. M. A., "Structural, electrical and magnetic properties of copper-cadmium ferrites prepared from metal oxalates", Journal of Materials Science, vol. 40, no. 2, pp. 387-398, 2005. AbstractWebsite

Seven samples of the system Cu1-x Cd x Fe 2O4 were prepared by thermal decomposition of mixed metal oxalates with x = 0.0, 0.1, 0.3, 0.5, 0.7, 0.9 and 1.0. The formation of the ferrispinel was studied by XRD, FT-IR, Mössbauer spectroscopy, electrical conductivity and magnetic susceptibility measurements. XRD showed single cubic spinel phase for all the samples except for CuFe2O4 sample which shows a tetragonal structure. An increase in the lattice parameter of the ferrispinel was observed with increasing the cadmium content. The temperature variation of ac conductivity showed four definite regions with three transitions which attribute to the change in the conduction mechanism with increasing temperature. Magnetic properties of the sample with x ≤ 0.5 showed a decrease in the effective magnetic moment with the increase in the cadmium content which means that the ferromagnetics are widely separated and enclosed by non-magnetic cadmium ions. A well defined hyperfine Zeeman spectrum is observed for samples with x ≥ 0.3 at room temperature and resolved into two sextets corresponding to the octahedral and tetrahedral sites. The propable ionic configuration of the system proposed is (Cd x Cu y Fe1-x-y )[Cu1-x-y Fe1+x+y ]O4. © 2005 Springer Science + Business Media, Inc.

Gabal, S., Z. Ashour, G. Hamada, S. A. Aziz, H. Khairy, H. Badawy, E. M. Hamada, and K. Saied, "Low-grade endometrial stromal sarcoma with intravenous extension to the heart.", Medscape journal of medicine, vol. 11, issue 1, pp. 23, 2009. Abstract

Endometrial stromal sarcoma (ESS) is a rare neoplasm of uterine origin. Intracardiac metastasis from this tumor is extremely infrequent. This report describes a 24-year-old woman from Yemen who had irregular vaginal bleeding shortly after spontaneous abortion. She developed left-lower-limb swelling, diagnosed by duplex scanning and magnetic resonance imaging as deep venous thrombosis in the inferior vena cava (IVC) that extended into the iliac veins on both sides, as well as the left femoral vein and right atrium. She developed acute respiratory distress, from which she recovered after transfer to the intensive care unit. Transesophageal echocardiography showed a large mass occupying the right atrium and ventricle and another mass in the right ventricular outflow tract with areas of cavitations. The tumor appeared to come from the IVC and extended through the right atrium and right ventricle into the pulmonary artery, ending in several digit-like projections. After surgical resection of the intracardiac mass, pathologic examination revealed a low-grade ESS that was confirmed by immunohistochemistry. The patient underwent panhysterectomy and IVC debridement. Pathologic examination revealed infiltrating low-grade endometrial sarcoma invading the myometrium and left adnexa, with intravenous extension into the pelvic veins and the IVC to the right side of the heart. This case shows that despite its well-known good prognostic nature, low-grade ESS may behave as an aggressive malignancy.

Gabal, S. M. M., F. Habib, D. I. N. A. OMAR, and M. Faysal, "Expression of Estrogen Receptor- ß (ER-ß) in Benign and Malignant Prostatic Epithelial Cells and Its Correlation with the Clinicopathological Features.", J of Egyptian National Cancer Inst, vol. 19, issue 4, pp. 1-10, 2007.
Gabal, S. M., F. M. Habib, D. O. Helmy, and M. F. Ibrahim, "Expression of estrogen receptor-B ( ER-B ) in bengin and malignant prostatic epithelial cells and its correlation with the clinico-pathological features.", Journal of the Egyptian National Cancer Institute, vol. 19, issue 4, pp. 239-48, 2007 Dec. Abstract

The role of estrogen and its receptors in the etiology and progression of prostate cancer ( PC ) is poorly understood. In normal and malignant human prostate, estrogen receptor-a is expressed only in the stroma, whereas estrogen receptor-Beta ( ER-Beta ) is present in both normal stroma and epithelium. Because loss of ER-Beta expression is associated with prostate hyperplasia in ER-Beta null mice, this study determined patterns of ERBeta expression in hyperplastic, PIN ( prostatic intraepithelial neoplasia ) and malignant human prostate and associations with tumor progression. Formalin-fixed, paraffin-embedded blocks were obtained from thirty-five patients who underwent radical prostatectomy and pelvic lymphadenectomy for prostate cancer, 15 core biopsies diagnosed as PIN and 10 TURP ( transurethral prostatic resection ) diagnosed as BPH ( benign prostatic hyperplasia ) were assessed for ER-Beta expression using immunohistochemistry. ER-Beta positivity was defined as 5% of cells demonstrating nuclear immunoreactivity. Nine ( 90% ) of the studied BPH cases showed ER-Beta positive expression where they showed 5% ER-Beta positive cells, while eight ( 53% ) of the studied 15 PIN cases were negative for ER-Beta expression. Twenty-nine ( 82.8% ) of the studied adenocarcinoma cases were negative for ERBeta expression, p<0 .0001. The loss of ER-Beta expression is associated with progression from hyperplastic prostate epithelium to PC. The ER-Beta expression is inversely proportional to PCs stage and grade. From these data we can conclude that estrogen can affect prostatic cancerogenesis and neoplastic progression through an ER-Beta mediated process in human prostate tissue. Our data also identify the need for additional studies to address the potential role of ERBeta in the regulation of prostate epithelial cell proliferation at different stages in the development of PC. Key Words:ER Beta - Prostatic hyperplasia - PIN - Prostatic carcinoma.

Gaballa, H. S., M. N. Wahba, and N. H. Magda, "Antioxidant and insecticidal effect of squirting cucumber, Ecballium elaterium extracts against Aphis craccivora and Phthorimaea operculella", Journal of Entomology and Zoology Studies, vol. 5, issue 5, pp. 1980-1985, 2017. 5-5-30_1.pdf
Gaballa, S. H., R. S. H. M. Allam, N. B. Abouhussein, and K. A. Raafat, "IOL master and A-scan biometry in axial length and intraocular lens power measurements", Delta Journal of Ophthalmology, vol. 18, issue 1, pp. 13-19, 2016.
Gaballa, H. S., E. A. Shalaby, sayed abdalkader fayed, and M. sanaa shanab, "Chemical constituents and biological activity of successive extracts and silver nanoparticles from red onion peels", Egyptian Journal of chemistry, 2022.
Gaballa, S. H., R. S. H. M. Allam, N. B. Abouhussein, and K. A. Raafat, "IOL master and A-scan biometry in axial length and intraocular lens power measurements", Delta Journal of Ophthalmology, vol. 18, issue 1, pp. 13, 2017.
Gaballah, S., El-Nagar, M. E., Abdel-Maksoud, G., and Youssef, S. A., "Presenting Shape Memory Polymers SMP and some Reinforcement materials for gaps filling in Archaeological Bones", Egyptian Journal of Chemistry, vol. 64, issue 7, pp. 3605 – 3614., 2021.
Gaballah, A., A. Shabana, R. Tabashy, and U. Lotfy, "Effect of Venous Contamination on the diagnostic Accuracy of Peripheral Arterial Disease in Moving Table Bolus Chase Three-Dimensional Magnetic Resonance Angiography of Lower Extremities", The Egyptian Journal of Radiology and Nuclear Medicine, vol. 39, issue 4, pp. 1499-1510, 2008.
Gaballah, F., H. Zawilla, and A. Rashed, "The Role Of Cd40 Ligand In Early Detection Of Chromium-Induced Immunotoxic Effects Among Exposed Workers", Egyptian Journal of Occupational Medicine, vol. 31, issue 2, pp. 237-258, 2007.
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