Atef Hamed Ali

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Oocyte competence is the ability of the oocyte to complete maturation, undergo successful fertilization, and reach the blastocyst stage. Cumulus cells are indispensable for this process. Their removal significantly affects the blastocyst rates. Moreover, the properties and functions of cumulus cells are regulated by the oocyte. They also reflect the(More)
Protein supplementation during in vitro maturation can profoundly affect both the rate and overall efficiency of the maturation procedure. The present study was conducted to assess the ability of different concentrations (1, 5, and 10%) of bovine follicular fluid (bFF) to support in vitro maturation of oocytes and subsequent developmental capacity. The bFF(More)
The aim of this study was to investigate the effect of short-term treatment (first 2 or 6 h) with recombinant human follicle-stimulating hormone (r-hFSH) during in vitro maturation (IVM) on the developmental competence of bovine oocytes. The roles of protein kinase A (PKA) and protein kinase C (PKC) (possibly involved in FSH response), were investigated(More)
The evaluation of culture medium for bovine oocytes has progressed toward more defined conditions during the last few years. The main objective of this study was to evaluate different sources of albumin as a protein supplement during in vitro maturation (IVM) of bovine oocytes in synthetic oviduct fluid medium (SOF). The replacement of protein with(More)
During in vitro maturation of bovine oocytes, effects of gonadotropins (FSH, LH) and growth factors such as epidermal growth factor (EGF) vary among studies. Now that we can use defined or semi-defined medium, it becomes possible to evaluate recombinant products to assess their roles. Therefore, this study was designed to evaluate the effect of purified(More)
Allergic rhinitis (AR) is regulated by the local production and release of several cytokines. Allergen specific immunotherapy (IT) has been widely used for many years as a specific treatment of allergic diseases. This study aimed to investigate the changes in clinical and immunological markers before and after Phoenix dactylifera IT in AR patients. Total(More)
Natural cycle and in-vitro maturation (IVM) of oocytes are becoming interesting alternatives to classical assisted reproduction technology approaches for patients, especially in those at high risk for ovarian hyperstimulation syndrome or with poor ovarian reserve. More than for their clinical and biological indications, natural cycle and IVM of oocytes can(More)
BACKGROUND This study aims to investigate the detailed computed tomography (CT) measurement of the nasopharynx (NP) in normal adult detecting mean of its dimension and relation of that measurement to that of the sphenoid sinus. METHODOLOGY/PRINCIPAL A normal paranasal CT scan and a straight nasal septum of 128 individuals (256 sphenoid sinuses) were(More)
The use of pharmacological adjuvants to enhance sperm function is a real possibility and a very attractive proposition. However, the role of such adjuvants must be well defined to maximize therapeutic outcome for specific patient populations. Platelet-activating factor (PAF) is a potent signalling phospholipid that has been implicated in a number of(More)
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