مدرس - عضو هيئة تدريس

كلية العلوم

العنوان: Sohag



المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: spermatozoa

2019-06-30 22:46:48 الكلمات المفتاحية outer dense fibers, spermatozoa, iOAT, Oxidative stress, sperm motility,
Outer dense fibers abnormalities in spermatozoa of IOAT patients and their relation to oxidative stress and sperm motility
INTRODUCTION & OBJECTIVES: Human Spermatozoa are characterized by certain features that differentiate them from simple Flagella. One of these features is the presence of outer dense fibers (ODFs). ODFs are nine fibers surrounding Axoneme in the midpiece and extend to variable length through the principal piece. They represent about 30% of the protein portion of human spermatozoa and accordingly they ... إقراء المزيد

2018-10-31 03:55:02 الكلمات المفتاحية Spergiarszoa, , .s;13M, , ·:TEM, S, SEM, TEM, spermatozoa,
Electron Microscopic Study Of Spermatozoa In Smokers.
Objectives: .'I:o detect the .. effect of cigarette smoking onssemen parameters, detectefhe morphological abnormalities by scanning electron microscope (SBM) and to detect the ,pltra· structural changes by using transmission electron microscope (TEM): · ,· .. . " Setting; (?utpatjent clinic o;J; Dermatology and Venereology Department, So~ag University Hospitals ir1d Electron Microscope Uriit at So hag Faculty of Science. " ·' ... إقراء المزيد

2018-09-29 20:55:34 الكلمات المفتاحية spermatozoa, Oxidative stress, nuclear DNA, male infertility,
Negative effects of increased sperm DNA damage in relation to seminal oxidative stress in men with idiopathic and male factor infertility
OBJECTIVE: To examine the effects of increased sperm DNA damage in relation to seminal oxidative stress in men with idiopathic and male factor infertility. DESIGN: Prospective study. SETTING: Infertility clinic at a tertiary care academic institution. PATIENT(S): Ninety-two infertile men with normal female partners. Sixteen fertile donors served as the control group. INTERVENTION(S): Standard semen analysis and assessment of levels ... إقراء المزيد

2018-09-29 23:05:06 الكلمات المفتاحية Leukocytospermia, male infertility, nuclear DNA, Oxidative stress, spermatozoa,
Leukocytospermia is associated with increased   reactive oxygen species production by human spermatozoa.
OBJECTIVE: To investigate the role of increased seminal leukocytes in enhancing reactive oxygen species (ROS) production by human spermatozoa. DESIGN: A prospective study. SETTING: Male infertility clinic. PATIENT(S): Forty-eight infertile men. INTERVENTION(S): Standard semen analysis. Assessment of sperm nuclear DNA damage by sperm chromatin structure assay. Incubation of spermatozoa from nonleukocytospermic samples with blood neutrophils. MAIN OUTCOME MEASURE(S): Spontaneous and ... إقراء المزيد