Background Selecting the best embryo for transfer, with the highest chance of achieving a vital pregnancy, is a major goal in current in vitro fertilization (IVF) technology. The high rate of embryonic developmental arrest during IVF treatment is one of the limitations in achieving this goal. Chromosomal abnormalities are possibly linked with chromosomal arrest and selection against abnormal fe...

Background and Objectives: studying chromosomal changes for anemia patients of children age (3month-12years ) in the city kut diagnosing those abnormalities resulting from having Methods: The chromosomes Patients to were analyzed studied using cytogenetic analysis detect aberrations caused by after collecting blood samples Al-Karama Teaching Hospital as well clinics Kut.Results: Chromosomal all...

background: genome instability is a main cause of chromosomal alterations in both somatic and germ cells when exposed to environmental, physical and chemical genotoxicants. germ cells especially spermatozoa are more vulnerable to suffering from dna damaging agents during spermatogenesis and also more potent in transmitting genome instability to next generation. methods: to investigate the effec...

The most common cause of pregnancy losses is chromosomal anomalies. Fetal chromosomal anomalies are found in 90% preembryonic losses, 50% first trimester abortions, 2/3 malformed embryos, and 1/3 malformed fetuses. Considering all pregnancy losses, the rate 50%...

this report presents the cytogenetic findings (g -banded chromosomal analysis} in 383 cases referred for suspected chromosomal abnormalities because of abnormal clinical features. chromosomal aberrations were found in 63 116.5%) of these cases, free trisomy 21 (7%) being the most common abnormality , followed by 47, xxykaryotype (4%). the breakdown figures for each group is discussed in the text.

Spontaneous abortion (SAb) is the most common complication of early pregnancy. Numerous risk factors are associated with an increased risk of pregnancy loss such as: Blighted ovum. The aim of this study was to determine the frequency of balanced chromosomal translocations in couples with a history of recurrent spontaneous abortions and ultrasound diagnosed blighted ovum. Sixty Eight couples wit...

Background The present study offers our contribution on the topic by a retrospective analysis of the prevalence of chromosomal abnormalities in a population of Iranian infertile men attending assisted reproduction programs. MaterialsAndMethods Cytogenetic analysis was performed according to standard methods on cultured cells obtained from the patient peripheral blood. In all, 874 files belongin...

an experimental study was accomplished to compare estimation methods of ionizing radiations genotoxicity in mammalian cell cultures by means of two cytogenetic parameters with focus on aberrant cells characterized by multiple chromosomal damages.in vitro study was carried out on the genotoxicity of low-medium doses of 190 kv x-rays absorbed in chinese hamster ovary cell cultures. micronuclei an...