objective: to verify the hypothesis that the incidence of chromosomal abnormalities increases in babies conceived by different assisted reproduction procedures. the availability of the umbilical cord blood encouraged us to study this hypothesis via this method. materials and methods: this is a descriptive study, umbilical cord blood samples of assisted reproductive technology (art) children wer...

The present study investigated the effect of zinc-deficiency on chromosomal abnormalities and mitotic index, interaction zinc deficiency methotrexate. Therefore, two zinc-deficient zinc-adequate diet received mice groups were constituted. Methotrexate was injected to one groups. There no structural numerical abnonnalities in all However, index significantly lower than other methotrexate adminis...

background: division of human genetics (dhg) is a referral center for karyotyping and counseling to the couples as well as to the individuals referred with bad obstetric history and infertility. materials and methods: from 1972 to 2003, overall 1666 couples and 131 female partners with bad obstetric history (boh) such as; spontaneous abortions, live births with congenital malformations and stil...