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Doppler Study of Uterine Artery and Ultrasonography of Endometrial Thickness in Perimenopausal and Postmenopausal Bleeding

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Open Journal of Obstetrics and Gynecology 2022年第4期12卷 309-322页

作者： Shaimaa Belal Manal abdel-Wanees Al-Sayed Hany Mahmoud abd el hamid Hesham Mohammed Hamed Department of Obstetrics and Gynecology Faculty of Medicine Helwan University Helwan Cairo Egypt Department of Obstetrics and Gynecology Al-Sahel Teaching Hospital Cairo Egypt

Background: Transvaginal color Doppler sonography of the uterine artery has been reported useful for evaluation of abnormal uterine bleeding in peri-/post-menopausal women. It may differentiate physiological from malignant endometrial changes. Objective: Evaluating the endometrial thickness and uterine artery Doppler as an initial diagnostic tool to identify patients with abnormal endometrial pathology. Methods: This is a prospective case control study consisted of total 50 women with peri-(n = 35) and post-(n = 15) menopausal bleeding, with 20 women consisting control group (no bleeding) (peri-(n = 10) and post-menopausal (n = 10)). Double layer endometrial thickness and uterine-artery-Doppler waveforms were measured, with the latter being S/D ratio, RI and PI. These were related to histological findings (endometrial biopsy). Result: Patients with abnormal uterine bleeding (both peri- and postmenopausal) had a significantly higher mean endometrial thickness than the control women. Study group showed a significantly lower value of all Doppler indices (S/D ratio, RI and PI). In study group, patients with malignant endometrial pathology showed significantly thicker endometrium and significantly lower Doppler indices than those with benign pathology. Conclusion: The combination of endometrial thickness and uterine artery color Doppler pattern might predict uterine endometrial malignancy, although whether it can discriminate (screen) patients requiring endometrial biopsy is not evident. Further study is needed.

关键词： Doppler Study Uterine Artery Ultrasonography Endometrial Thickness

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The Possible Role of the Incretin Enhancer Sitaglipten, in Renal Ischemic Reperfusion Injury in Type 2 Diabetes Mellitus

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Open Journal of Endocrine and Metabolic Diseases 2014年第7期4卷 181-196页

作者： Mervat E. Mohamed Sammy H. Hammadi Magda H. abd-el hamid Department of Pharmacology & Toxicology and Pathology Faculty of Medicine Umm Al-Qura University Makkah Saudi Arabia

Background: Diabetes mellitus (DM) especially type 2 is a major health problem and diabetic nephropathy is the main cause of end stage renal disease (ESRD). Renal ischemia/reperfusion (I/R) injury is common in diabetic patients. Recent studies reported increased vulnerability of kidneys to I/R injury in diabetic rats. In view of the reported efficacy of incretin enhancer on I/R injury. Aim: This study was designed to assess the effect of sitaglipten on renal I/R in type 2 diabetes mellitus . Methods: Type 2 DM in rats were induced by administration of nicotinamide (230 mg/kg, i.p.), 15 min prior to the single dose of streptozotocin (65 mg/kg, i.p.). Renal I/R were performed in both diabetic and normal rats. Results: The lipid peroxidation, xanthine oxidase activity, and nitric oxide levels were significantly increased after I/R in diabetic rats compared to I/R in normal rats. Antioxidant enzymes such as glutathione, superoxide dismutase, catalase, and glutathione peroxidase were significantly reduced after I/R in diabetic rats compared to normal rats. Sitaglipten treatment significantly normalized these biochemical parameters compared to diabetic I/R rats. Serum TNF-α level and myeloperoxidase activity were also significantly normalized after administration of sitaglipten. Furthermore, treatment with sitaglipten (10 mcg/kg) had preserved the normal morphology of the kidney compared to I/R performed in diabetic rats. Conclusion: Sitaglipten protects exaggerated renal I/R injury in type 2 DM. These findings have major implication in the treatment of ischemic injury that is prone to develop in DM.

关键词： Type 2 Diabetes Mellitus Dipeptidyl Peptidase-IV Glucagon-Like Peptide-1 Sitaglipten Inflammation Ischemia Reperfusion Kidney Oxidative Stress

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Microwave Assisted Liberation of High Phosphorus Oolitic Iron Ore

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Journal of Minerals and Materials Characterization and Engineering 2014年第5期2卷 414-427页

作者： Mamdouh Omran Timo Fabritius Nagui abdel-Khalek Mortada el-Aref abd el-hamid elmanawi Mahmoud Nasr Ahmed elmahdy Laboratory of Process Metallurgy Research Group Process and Environmental Engineering Department University of Oulu Oulu Finland Central Metallurgical Research and Development Institute Cairo Egypt Geology Department Faculty of Science Cairo University Cairo Egypt

The influence of microwave treatment on the liberation of iron ore from the high phosphorus oolitic iron ore from Aswan region, Egypt was studied. The effect of microwave power, exposure time and grain size on the liberation of iron ore was investigated. The microfractures and cracks of the samples were characterized before and after microwave treatments. The heating rate of high phosphorus oolitic iron ore was studied. Crystallinity of hematite was characterized before and after microwave pretreatment. The results indicated that intergranular fractures formed between the gangues (fluorapatite and chamosite) and hematite after microwave treatment, leading to improved liberation of iron ore and a significant reduction in comminution energy. Percentages of fraction ≤ -0.125 mm increased from 46.6% to 59.76% with increased exposure time from 0 to 60 seconds. The heating rate of iron ore showed that microwave treatment was less efficient at smaller particle sizes for a fixed applied power density. Crystallinity of hematite increased with the microwave exposure time.

关键词： Microwave Treatment High Phosphorus Oolitic Iron Ore Liberation

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Improvement the Corrosion Resistance for the Galvanized Steel by Adding Sn

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Journal of Surface Engineered Materials and Advanced Technology 2016年第2期6卷 58-71页

作者： Z. abdel hamid S. S. abd el Rehim A. Abou Shama M. Ebrahim Central Metallurgical Research & Development Institute (CMRDI) Cairo Egypt Chemical Department Faculty of Science Ain Shams University Cairo Egypt Physics Department Faculty of Science Ain Shams University Cairo Egypt

The chemical composition of the zinc bath can strongly influence on the hot-dip galvanized coatings. In this work, the effects of tin addition on the surface morphology, and the corrosion resistance of hot-dip galvanized steel were investigated. The corrosion behavior of steel samples galvanized with zinc and Zn-Sn alloys containing different wt% Sn was analyzed by various corrosion tests such as potentiodynamic polarization Tafel lines and electrochemical impedance spectroscopy (EIS) techniques. Salt spray test was employed in order to study the corrosion products of the specimens. Surface morphology, the composition of coating layers and nature of the corrosion products were also investigated using field emission scanning electron microscopy (FE-SEM), energy dispersive X-ray analysis (EDX) and X-Ray diffraction (XRD) techniques, respectively. The results indicated that the addition of small amounts of Sn (0.1 wt%) to the molten zinc galvanizing bath can improve the corrosion resistance of hot-dip galvanized steel.

关键词： Hot-Dip Galvanizing Process Corrosion Potentiodynamic Polarization EIS Salt Spray

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Risk Factors Associated with Cholelithiasis during Pregnancy and Postpartum

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Open Journal of Obstetrics and Gynecology 2022年第11期12卷 1166-1175页

作者： Shaimaa Belal Hesham Mohammed Hamed abdelrahman Kamal Manal abdel-Wanees Al-Sayed Hany Mahmoud abd el hamid Department of Obstetrics and Gynecology Faculty of Medicine Helwan University Helwan Egypt Department of Obstetrics and Gynecology El-Sahel Teaching Hospital Cairo Egypt Department of General Surgery Sahel Teaching Hospital Cairo Egypt

Gallbladder disease is the most common non-obstetrical cause of maternal hospitalization in the first year postpartum. Many risk factors have been associated with gallbladder disease in pregnancy including body mass index, prenatal weight gain, prenatal physical activity, dietary fat, age, parity, a history of gallbladder disease and the number of previous pregnancies were significant factors related to new gallstones and biliary sludge formation in the pregnant group. The aim of this study is to evaluate the risk factors for gallstones formation in pregnancy and one year after labour. The study included 328 female patients (pregnant or postpartum) divided into two groups;patient group (164 patient) that are pregnant or postpartum patient have gallstones and control group (164 patient) that are pregnant or postpartum patient does not have gallstones. All patients were subjected to full history taking;especially about risk factors predisposing for gallstones, physical examination and pre-operative routine laboratory investigations and imaging as abdominal ultrasound study (U/S). Obesity, young age, history of gallbladder disease and use of estrogen and progesterone are the main risk factors that increase incidence of gallstones during pregnancy or one year postpartum. Use of vit C, iron, drinking coffee and practicing regular physical activity are considered protective factors.

关键词： Cholelithiasis Pregnancy Postpartum

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The Impact of the Techniques and Tactics Appropriate by the Athletes in Phase Triple Jump and Their Relationships with the Finale Results

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Journal of Sports Science 2015年第4期3卷 179-185页

作者： Zerf Mohammed Mokkedes Moulay Idriss Bengoua Ali Bendahmane Med Nasreddin Guebli abd-el-Kader Physical Education Institute Laboratory OPAPS University Abdel Hamid lbn Badis Mostaganem Mostaganem 27000 Algeria

The purposes of this study were to describe and compare the techniques used by elite world triple jumper and the Algerian elite team to determine the impact of distribution modality phases allowing the elite to exceeds 17-meter. Our subjects were two world elite 2009 and two Algerian national elite 2013. In the lack of new technology Modem measuring instruments kinematics or kinetics, our study based in measure of the Phase distribution ratio as measure of Stride length Jump distance. That literature review two schools, the Russian technique （which emphasizes the hop phase） and the Polish technique （which emphasizes the jump phase）. Our aims for this study are： Are there any statistically significant differences between the results of the samples in the distance achieved？ Are there any statistically significant differences between practical Ratio relative distances （world 2009-national 2013）？ Are there any statistically significant differences between Stride length phase distances （world 2009-national 2013）？ For that, we have chosen the analysis of variance and correlation of the distances achieved in each of the phases with the official distance of jumper and ＂T＂ student to compare implementation distribution of phases （hop, step and jump） with the results accuses. Based on the practices and weaknesses of elites in practice, we confirm：（1） All the samples practice the Russian technique as model in the distribution of the phase ratio; （2） The problem of our elites is in the hop phase distribution and its relationship with other phases; （3） Improve achieve horizontal vertical velocity in hop phase as solution.

关键词： The ratio phase techniques tactics appropriate triple jump.

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Plastic Deformation Evaluation of 6201 Alloy by Using Positron Annihilation Lifetime Technique

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材料科学与工程（中英文A版） 2013年第1期3卷 14-21页

作者： Amira.Nassar Magda abd el-Wahab Eman abd el hamid Zeinab Yousef Metal Physics Lab. Solid State Physics Department National Research Center Dokki Cairo P.O. 1231 I Egypt Physics Department Faculty of Women for Arts Science and Education A in Shams University Heliopolis Cairo 1175 7 Egypt

The effect of cold drawn on the mechanical properties and structural defects of 6201 alloy used as conductor cables was studied. The effect of heat treatment at 350 and 500 °C after deformation as well as deformed at room temperature (RT) was investigated in order to identify an optimized heat treatment for different cold drawn samples. The mechanical properties and microstructure were determined by using Vickers micro hardness (Hv) and scanning electron microscopy (SEM), respectively. The Evaluation of three distinguished stages observed in this investigation was discussed by using positron annihilation lifetime (PAL) technique. The present work demonstrates that PAL can provide valuable information about the microstructure of cold drawn 6201 alloy.

关键词：正电子湮没寿命塑性变形技术评价合金扫描电子显微镜微观结构结构缺陷机械性能

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从商品蛋鸡肠炎沙门氏菌的排泄和定居评价几种沙门氏菌疫苗的效力

从商品蛋鸡肠炎沙门氏菌的排泄和定居评价几种沙门氏菌疫苗的效力

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第15届世界禽病大会、中国畜牧兽医学会2007年学术年会

作者： abd el-hamid,H.S ellakany,H.F Abu el-Azm,I.M Radwan,M.H 周宏专 Department of Poultry and Fish Diseases Faculty of Veterinary Medicine Alexandria University Egypt Department of Poultry and Fish Diseases Faculty of Veterinary Medicine Alexandria University Egypt Department of Poultry and Fish Diseases Faculty of Veterinary Medicine Alexandria University Egypt Department of Poultry and Fish Diseases Faculty of Veterinary Medicine Alexandria University Egypt

家禽的沙门氏菌病和沙门氏菌感染遍及全球,如果不努力控制会造成严重的经济损失。最重要则是在公共卫生方面沙门氏菌污染蛋、禽肉和肉产品的连锁效应。目前进行调查以确定实验感染沙门氏菌后

关键词：沙门氏菌商品蛋鸡

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Effectiveness of hepatitis B virus vaccination program in Egypt:Multicenter national project

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World Journal of Hepatology 2015年第22期7卷 2418-2426页

作者： Iman I Salama Samia M Sami Zeinab Nabil Ahmed Said Manal H el-Sayed Lobna A el Etreby Thanaa M Rabah Dalia M elmosalami Amany T abdel hamid Somaia I Salama Aida M abdel Mohsen Hanaa M Emam Safaa M elserougy Amal I Hassanain Naglaa F abd Alhalim Fatma A Shaaban Samia A Hemeda Nihad A Ibrahim Ammal M Metwally Community Medicine Research Department National Research Center Child Health Department National Research Center Micro--biology and Immunology Department Faculty of Medicine (for girls)Al-Azhar University Pediatrics Department Faculty of MedicineAin-Shams University Dermatology and Venereology Department National Research Center Environmental and Occupational Medicine Department National Research Center

AIM:To assess the effectiveness of hepatitis B virus(HBV) vaccination program among fully vaccinated ***:A national community based crosssectional study was carried out in 6 governorates representing Egypt. A total of 3600 children aged from 9 mo to 16 years who were fully vaccinated with HBV vaccine during infancy were recruited. Face to face interviews were carried out and sera were evaluated for hepatitis B surface antigen(HBsA g),anti-HBV core antibodies(total) and quantitative detection of hepatitis B surface antibody using enzyme linked immunoassays techniques. Samples positive to HBs Ag/anti-HBV core antibodies were subjected to quantitative HBV-DNA detection by real time polymerase chain reaction with 3.8 IU/L detection limit. RESULTS:Sero-protection was detected among 2059 children(57.2%) with geometric mean titers 75.4 ± 3.6 IU/L compared to 3.1 ± 2.1 IU/L among nonseroprotected children. Multivariate logistic analysis revealed that older age and female gender were the significant predicting variables for having non seroprotective level,with adjusted odds ratio 3.3,9.1and 14.2 among children aged 5 to ely compared to those ely. The prevalence of HBV infection was significantly higher among children aged ≥ 7 years(0.59%) compared to 0.07% among younger children with odds ratio equal to 8.4(95%CI:1.1-64.2) and P 0.05. C ON C LU S I ON :T he E gy pt ian c ompuls or y H B V vaccination program provides adequate protection. Occult HBV infection exists among apparently healthy vaccinated children. Adherence to infection control measures is mandatory.

关键词： Hepatitis B virus Immunization Seroprotection Brea

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