khalaf.ali

Khalaf Ali Fayez Abuamra

استاذ - أستاذ متفرغ

كلية العلوم

العنوان: قسم النبات والميكروبيولوجى -كلية العلوم -جامعة سوهاج

2

إعجاب

المنشورات و المؤلفات التي تحتوي علي الكلمة المفتاحية: male infertility


2018-10-31 14:06:22 الكلمات المفتاحية male infertility, nuclear DNA, ,
Evaluation of nuclear DNA damage in spermatozoa from infertile men with varicocele
OBJECTIVE: To examine levels of sperm DNA damage and oxidative stress (OS) in infertile men with varicocele. DESIGN: Prospective controlled study. SETTING: Male infertility clinic, Glickman Urological Institute, Cleveland Clinic Foundation, Cleveland, Ohio. PATIENT(S): Thirty-one infertility patients and 16 fertile controls. INTERVENTION(S): Sperm DNA fragmentation index (DFI), levels of seminal reactive oxygen species (ROS), and total antioxidant capacity (TAC) were ... إقراء المزيد

2018-10-31 07:57:11 الكلمات المفتاحية male infertility, Y chromosome microdeletion, AZF regions,
:Y-Chromosome Microdeletion Analysis in Infertile Men from Upper Egypt.
Objectives: To study the prevalence and patterns ofY-chromosome microdeletions in infertile men from Upper Egypt and to determine the relationship between Y-chromosome microdeletions with clinical and laboratory findings in these patients. Design: Cross-sectional study. Patients: Infertile men (n = 210) and a control group of fertile men with normal semen analysis (n = 30). Methods: Clinical evaluation, standard semen analysis ... 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

2018-09-29 23:10:37 الكلمات المفتاحية male infertility, nuclear DNA, Sperm,
Increased sperm nuclear DNA damage in normozoospermic infertile men: a prospective study.
OBJECTIVE: To evaluate levels of sperm nuclear DNA damage in infertile men with normal and abnormal standard semen parameters. DESIGN: Prospective study. SETTING: Male infertility clinic. PATIENT(S): Ninety-two men seeking infertility treatment and 16 fertile volunteers. INTERVENTION(S): Standard semen analysis was performed according to the World Health Organization guidelines. MAIN OUTCOME MEASURE(S): Sperm DNA damage was assessed by sperm chromatin ... 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

2018-09-17 16:59:32 الكلمات المفتاحية male infertility, Y chromosome,
Y-Chromosome Microdeletion Analysis in Infertile Men from Upper Egypt
OBJECTIVES: To study the prevalence and patterns of Y-chromosome microdeletions in infertile men from Upper Egypt and to determine the relationship between Y-chromosome microdeletions with clinical and laboratory findings in these patients. DESIGN: Cross-sectional study. PATIENTS: Infertile men (n = 210) and a control group of fertile men with normal semen analysis (n = 30). METHODS: Clinical evaluation, standard semen ... إقراء المزيد