Meriem Ait Mehdi

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To investigate the effects of male aging on semen quality, DNA fragmentation and chromosomal abnormalities in the spermatozoa of infertile patients and fertile men. Semen samples of 140 infertile patients (24–76 years) and 50 men with proven fertility (25–65 years) were analyzed according to WHO guidelines. DNA fragmentation was detected by TUNEL assay,(More)
OBJECTIVES To evaluate and compare standard sperm parameters, and sperm DNA fragmentation in seminal ejaculates from men whose partners had a history of recurrent pregnancy loss (RPL) and in a control group of men who had recently established their fertility. METHODS Semen samples from 31 patients with a history of recurrent pregnancy loss and 20 men with(More)
OBJECTIVES To evaluate the levels of DNA fragmentation and aneuploidy rate in ejaculated sperm of men with globozoospermia and men with a predominance of abnormal acrosomes. METHODS The semen samples obtained from 2 globozoospermic men, 8 patients with a predominance of abnormal acrosomes, and 20 fertile men were analyzed using the fluorescence in situ(More)
OBJECTIVE To compare the results of cytogenetic and molecular analysis between absolute polymorphic and monomorphic teratozoospermia. METHODS The semen samples from patients with polymorphic teratozoospermia (n = 20), globozoospermia (n = 8), or macrocephalic sperm head syndrome (n = 12), and healthy fertile men (n = 20) were analyzed according to the(More)
Acetamiprid is one of the most widely used neonicotinoids. This study investigates toxic effects of repeated oral administration of three doses of acetamiprid (1/20, 1/10, and 1/5 of LD50) during 60 days. For this, male Wistar rats were divided into four different groups. Hematological, biochemical, and toxicopathic effects of acetamiprid were evaluated.(More)
The aim of this study was to determine if a relationship exists between the levels of sperm DNA fragmentation and necrospermia in infertile men. Semen samples obtained from 70 men consulting for infertility evaluation were analyzed according to World Health Organization (WHO) guidelines. Patients were subdivided into three groups according to the percentage(More)
This study aims to investigate the effects of chlorpyrifos's sub-acute exposure on male rats. Two groups with six animals each were orally treated, respectively, with 3.1 mg/kg b w and 6.2 mg/kg b w of chlorpyrifos during 4 weeks. The genotoxic effect of chlopyrifos was investigated using the comet assay and the micronucleus test. Some hematological and(More)
In general, people may come in contact with mixtures of insecticides through domestic use, consumption of contaminated food or drinks, and/or living close to treated areas. We analyzed the toxic effects of diazinon on histological structure of liver and hematological parameters in male rats. DNA-damaging potential of diazinon was also investigated using the(More)
To evaluate levels of DNA fragmentation and chromosomal abnormalities in ejaculated sperm of males with isolated teratozoospermia and to determine if specific sperm morphological types occur simultaneously with these nuclear defects. Sperm obtained from isolated teratozoospermic men (n = 70) and fertile men (n = 30) were analysed using fluorescence in situ(More)
To analyse the segregation of a Robertsonian translocation t(13;14) in five male carriers, and to verify a possible inter-chromosomal effect (ICE) of the Robertsonian translocation on chromosomes 18, X, and Y. The spermatozoa of these patients (n = 5) and of 15 donors with normal semen parameters and 46,XY karyotype were analysed using triple colour FISH(More)