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 ...

objective: irinotecan is a botanical derivative and an anti-cancer drug with cytotoxic and genotoxic effects. the present study evaluated the effect of lactobacillus plantarum a7 on the genotoxic activity of irinotecan in a hepatocellular carcinoma cell line (hepg2) by comet assay. materials and methods: hepg2 were incubated with irinotecan (100 µm), heat-killed cells (0.025 µg/ml) + irinotecan...

Objective: Irinotecan is a botanical derivative and an anti-cancer drug with cytotoxic and genotoxic effects. The present study evaluated the effect of Lactobacillus plantarum A7 on the genotoxic activity of irinotecan in a hepatocellular carcinoma cell line (HepG2) by comet assay. Materials and Methods: HepG2 were incubated with irinotecan (100 µM), heat-killed cells (0.025 µg/ml) + irinotecan...

Background. Mitochondrial DNA (MT-DNA) are intrinsically inflammatory nucleic acids released by damaged solid organs. Whether circulating cell-free MT-DNA quantitation could be used to predict the risk of poor COVID-19 outcomes remains undetermined.

Background: The success of in vitro-fertilization (IVF) cycles is determined large part by the quality embryo cleavage, which turn, dependent on culture media (CM). Many factors can influence CM, one levels Cell Free Deoxyribonucleic acid (DNA). Understanding association between Cell-free DNA CM and cleavage could help improve IVF techniques.
 Methods: This prospective study was conducted ...

Isolation of cell free fetal DNA (cffDNA) from maternal serum usually leads to very low concentrations of DNA impeding further resolving through conventional methods of electrophoresis. Although several protocols have been described for capillary electrophoresis (CE) of double stranded DNA, they usually need using special polymers or coated capillaries which degrade over time. Herein, we propos...

the first step in the prenatal diagnosis of x-linked genetic disorders is determining fetus gender. current invasive methods to obtain the dna source of the fetus instead of its miscarriage risk, has harmful stress for high risk pregnancies. cell free fetal dna (cffdna) circulating in the maternal blood, has now become a useful source of noninvasive prenatal diagnosis. considering limitation of...