objective: to review the current situation regarding prenatal diagnosis (pnd) in islamic countries. methods: a descriptive study (narrative review) has been done based on the available data in formal international and national published documents in 2013. the sources were papers, websites and electronic books. time limitation of searches has started 20 years ago. the main languages were english...

organic acidemias are the group of metabolic disorders which define by high anion gap metabolic acidosis, hypo or hyperglycemia & hyperammonemia.because of the severity of disease in children and its fatality in severe form of disease and also need for life long treatment, prenatal diagnosis is an important diagnostic tool.three approaches to prenatal diagnosis may be possible, including measur...

maternal infection with toxoplasma gondii acquired during pregnancy may result in congenital infection of developing fetuses. up to now, decision on informed therapeutic abortion of fetuses suspected of having t. gondii infection in iran has been made based on serological findings in mothers. this might have led to unnecessary abortion of many uninfected children. we evaluated the polymerase ch...

objective(s):to determine the fetal discernment in suspected cases of sex linked recessive disease in the first trimester of pregnancy. materials and methods: after collection of 100 chorionic villi samples, the dnas were extracted and baby gender was determined. meanwhile, after increasing the sensitivity, the system was able to detect the sex of each cell which was obtained by biopsy. results...

 Harlequin ichthyosis is a rare and the most severe form of congenital ichthyosis. Although prenatal diagnosis is difficult for this disorder, recently, this obstacle has markedly improved with the use of DNA-based prenatal diagnosis. Here in, we presented a neonate with harlequin ichthyosis born by assisted reproductive technology (ART). In this case, the diagnosis of harlequin ichth...

methods genomic dna of cultured s. agalactiae was prepared and loop-mediated isothermal amplification (lamp) primers were designed based on the camp gene in bacteria. the optimum primer set was selected based on the reaction speed and specificity. the reaction result was monitored visually. the sensitivity and specificity of the lamp method were evaluated and compared with polymerase chain reac...

background: discovery of short cell free fetal dna (cffdna) fragments in maternal plasma has created major changes in the field of prenatal diagnosis. the use of cffdna to set up noninvasive prenatal test is limited due to the low concentration of fetal dna in maternal plasma therefore, employing a high efficiency extraction method leads to more accurate results. the aim of this study was to ev...

down syndrome (ds) is a birth defect with huge medical and social costs, caused by trisomy of whole or part of chromosome 21. it is the most prevalent genetic disease worldwide and the common genetic cause of intellectual disabilities appearing in about 1 in 400-1500 newborns. although the syndrome had been described thousands of years before, it was named after john langdon down who described ...

In this paper, all possible clinical applications of circulating mRNA and miRNA for non-invasive prenatal diagnosis appearing in the medical literature so far are described. Data from the literature have also been reported and commented on along with some possible future applications.