نتایج جستجو برای: azoospermia factor

تعداد نتایج: 846031  

Journal: :Human reproduction 1999
G D Palermo P N Schlegel J J Hariprashad B Ergün A Mielnik N Zaninovic L L Veeck Z Rosenwaks

The evident ability of the intracytoplasmic sperm injection (ICSI) procedure to achieve high fertilization and pregnancy rates regardless of semen characteristics has induced its application with spermatozoa surgically retrieved from azoospermic men. Here, ICSI outcome was analysed in 308 cases according to the cause of azoospermia; four additional cycles were with cases of necrozoospermia. All...

Journal: :Fertility and sterility 1997
D W De Knijff H J Vrijhof J Arends R A Janknegt

OBJECTIVE To determine the percentage of patients with nonmotile sperm 12 weeks after vasectomy, to estimate the time needed for eventual azoospermia in these patients, and to record the percentage of patients with recurrence of nonmotile sperm after initial azoospermia after vasectomy. DESIGN A review of the semen analysis of vasectomies performed in a 2-year period. Semen analysis in a grou...

Journal: :Human reproduction 2002
N L Dean S J Phillips P Chan S L Tan A Ao

3003 Reported relationship between increased CTG repeat lengths in myotonic dystrophy and azoospermia Dear Sir, We read with interest the analysis by Pan and colleagues. in which they conclude that, in the myotonic dystrophy protein kinase (DMPK) variable CTG repeat region, alleles of 18 or more repeat units are observed only in patients with non-obstructive azoospermia and not in controls (Pan...

Journal: :مجله دانشکده پزشکی دانشگاه علوم پزشکی تهران 0
پریسا کلانتری kalantari p حوری سپهری sepehri h محمدتقی اکبری akbari mt زهرا اوسطی آشتیانی osati ashtiani z فرخنده بهجتی behjati f

in this study, chromosome analyses were performed on 70 infertile azoospermic and oligospermic (<20 million/ml) men, and also cultures of peripheral blood lymphocytes by high resolution banding method were analysed as well. it is revealed 8 (11.43 percent) men with chromosomal abnormality. there were 31.4 percent patients with azoospermia and 68.6 percent with oligospermia from several thousand...

2012
Saeid Ghorbian

The prevalence of male infertility appraised 10-15% in worldwide. Male infertility is frequently coupled to deficient in sperm development and production (1). Of note, in principle of the number of sperm cells in seminal fluid, has been categorised in azoospermia, severe oligozoospermia and mild oligozoospermia. In azoospermia condition, a sperm cell counts approximately ≤5×10 cells/mL, and in ...

Journal: :Clinical endocrinology 2003
Paolo A Tomasi Robert Oates Laura Brown Giuseppe Delitala David C Page

OBJECTIVE The most frequent known genetic causes of severe oligospermia (< 5 million sperm/ml) or azoospermia in men are Klinefelter's syndrome (KS), and deletions in the Y chromosome long arm (Yq). We aimed to compare the function of the pituitary-testicular axis in patients with severe oligospermia or azoospermia, idiopathic or associated with Y chromosome deletions or Klinefelter's syndrome ...

2014
P. Mohan Rao A. Sridhar I. V. Renuka M. Venugopal

Situs inversus with dextrocardia is a rare congenital anomaly. Azoospermia and situs inversus may be encountered in ciliary dyskinesia syndromes. We report the case of a 30-year-old male who manifested situs inversus totalis, dextrocardia and azoospermia with maturation arrest at primary spermatogenesis who presented with liver abscess. The patient responded well to treatment with i.v. metronid...

Journal: :Human reproduction 2002
G R Dohle D J J Halley J O Van Hemel A M W van den Ouwel M H E C Pieters R F A Weber L C P Govaerts

BACKGROUND Male infertility due to severe oligozoospermia and azoospermia has been associated with a number of genetic risk factors. METHODS In this study 150 men from couples requesting ICSI were investigated for genetic abnormalities, such as constitutive chromosome abnormalities, microdeletions of the Y chromosome (AZF region) and mutations in the cystic fibrosis transmembrane conductance ...

Journal: :Hormones 2005
Themistoklis Mikos Nikolaos Maglaveras Konstantinos Pantazis Dimitrios G Goulis John N Bontis John Papadimas

OBJECTIVE Data Mining is a relatively new field of Medical Informatics. The aim of this study was to compare Data Mining diagnosis with clinical diagnosis by applying a Data Miner (DM) to a clinical dataset of infertile men with azoospermia. DESIGN One hundred and forty-seven azoospermic men were clinically classified into four groups: a) obstructive azoospermia (n=63), b) non-obstructive azo...

Journal: :Annals of oncology : official journal of the European Society for Medical Oncology 2008
M Sieniawski T Reineke A Josting L Nogova K Behringer T Halbsguth M Fuchs V Diehl A Engert

BACKGROUND Infertility is one of the most significant side-effects in long-term survivors of successfully treated Hodgkin's lymphoma (HL). PATIENTS AND METHODS The fertility status was assessed in male HL patients enrolled into trials of the German Hodgkin Study Group from 1988 to 2003. RESULTS In pre-treatment analysis (n = 202), 20% of patients had normozoospermia, 11% azoospermia and 69%...

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