Mohamed Zaki

Objective: To assess bone mineral density (BMD), body composition by dual X-ray absorptiometry (DXA), and various biochemical markers of bone growth and resorption in a group of children with type 1 diabetes mellitus (T1DM).

Cholestasis can be defined as the accumulation of substances normally excreted in bile (e.g. bilirubin, bile acids, and cholesterol). The process occurs as a result of impaired bile formation by the hepatocytes or from obstruction to the flow of bile through the intra hepatic and extra hepatic biliary tree. The aim of this study was to make laboratory assessment of bone mineral status and detection of the impact of different biliary diseases, its severity, duration and applied management on these values. The present study included forty patients, twenty four males (60%) and sixteen females (40%) who had cholestatic liver diseases for more than 3 months and followed up in the hepatology clinic, Cairo University and twenty healthy age and sex matched controls.

The aim of this study was to evaluate the effect of the lingualized versus monoplane occlusal scheme on the supporting bone around early-loaded mini implants supporting mandibular over-dentures. Patients and methods; Fourteen completely edentulous male patients were divided randomly into two equal groups. Four mini implants were installed in each patient at the inter-foramina area. Group 1 patients received mini implant supported mandibular over-dentures with their occlusal scheme set according to the lingualized occlusal concept. Group 2 patients received mini implant supported mandibular over-dentures with their occlusal scheme set according to the monoplane occlusal concept. The early loading protocol was implemented & cases were evaluated radiographically using the Digora computerized system at the time of denture insertion (0), (3), (6) and (9) months after denture delivery. Results; There was no statistically significant difference between the bone height measurements of the two groups. As regards the bone density, it was decreased during the first three months in both groups. This was followed by a gradual increase with the greater increase being recorded for group 1 (lingualized occlusal scheme) followed by group 2 (mono plane occlusal scheme). There was a statistically significant difference between the two groups at the end of the study period only. Conclusion; A more favorable bone reaction was achieved in the ligualized occlusal scheme group than in the monoplane occlusal scheme group. Recommendation; Whenever possible, the ligualized occlusal scheme should be adopted than the monoplane occlusal scheme as the preferred occlusal concept of mini implant supported mandibular over-dentures if they are intended to be early loaded. Keywords: Over-denture; Bone reaction; Mini implants; Early loading; Monoplane; Lingualized scheme; Digora

The aim of this study was to evaluate the effect of the lingualized versus monoplane occlusal scheme on the supporting bone around early-loaded mini implants supporting mandibular over-dentures. Patients and methods; Fourteen completely edentulous male patients were divided randomly into two equal groups. Four mini implants were installed in each patient at the inter-foramina area. Group 1 patients received mini implant supported mandibular over-dentures with their occlusal scheme set according to the lingualized occlusal concept. Group 2 patients received mini implant supported mandibular over-dentures with their occlusal scheme set according to the monoplane occlusal concept. The early loading protocol was implemented & cases were evaluated

We study Boolean functions derived from Fermat quotients modulo p using the Legendre symbol. We prove bounds on several complexity measures for these Boolean functions: the nonlinearity, sparsity, average sensitivity, and combinatorial complexity. Our mmain tools are bounds on chracter sums of Fermat quotients modulo p.

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The tumor suppressor gene, BRCA1 has been conferred to increase the susceptibility to breast cancer in younger women. This work studied the expression of BRCA1 (mRNA) in women with breast cancer in relation to other prognostic parameters such as histological type and grade of cancer, hormone receptor status, human epidermal growth factor receptor 2 (HER2/neu) and CA15-3. Thirty patients with positive family history of breast cancer and a control group of 20 healthy subjects were also included for the study. Ribonucleic acid (RNA) extraction from breast cancer tissues was done (considered suitable for RNA extraction if 70% or more of the tissue section contained tumor) and was followed by real-time reverse transcription polymerase chain reaction. BRCA1 expression was assessed and correlated with age, histological type and grade of breast cancer, estrogen and progesterone receptor (ER, PR)

In this study, a method for the detection of sarafloxacin in pig and chicken muscles was developed using HPLC-FLD as a regulatory residue technique. Good extraction efficiency was achieved using a mixture of 1% orthophosphoric acid-0.2 m MgCl(2) in water and acetonitrile as an extraction solvent, and n-hexane partitioning and centrifugation for cleanup was used in the absence of dehydration. Specificity, linearity, detection and quantification limits, recovery, accuracy and precision were all validated, and all results were sufficient for the SARA regulatory residue method in pig and chicken muscles. The method developed and described herein was not only simple but also reliable, and was applied to market samples to determine their residue contents.

Aim: To estimate the burden of undiagnosed celiac disease (CD) in the Mediterranean area in terms of morbidity, mortality and health cost.

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