In this study, we investigated the relationship between the genetic polymorphism of growth differentiation factor 9 (GDF9) genes and the litter size in 384 individuals of five breeds of black goats. Four pairs of primers were designed to detect single nucleotide polymorphism of GDF9 gene in goats by PCR-SSCP. The least square was used to analyze the relation between different genotypes and the ...

objective(s): it has been reported that the mutation of the pre-core (pc) and basal-core promoter (bcp) may play an important role in the development of hbv-related hepatocellular carcinoma (hcc). in this study the pc and bcp mutations were investigated in chronic hbv patients. materials and methods:in this study, 120 chronic hbv patients from golestan, northeast of iran who were not vaccinated...

mutations in the gjb2 gene at the dfnb1 locus on chromosome 13q12 are associated with autosomal recessive non syndromic hearing loss (arnshl) in many populations. a single mutation, at position 35 (35delg) accounts for approximately 30-63% of mutations in white populations with a carrier frequency of 1.5-2.5% in most european, north american and mediterranean populations. in this study we have ...

Two mechanisms have recently been proposed that can significantly speed up finding distant improving solutions via mutation, namely using a random mutation rate drawn from heavy-tailed distribution (“fast mutation”, Doerr et al. (2017) [2]) and increasing the strength based on stagnation detection mechanism (Rajabi Witt (2020) [3]). Whereas latter obtain asymptotically best probability of singl...

background: pharmacogenomics is the study of genetic variations among individuals to predict the probability that a patient will respond to single or multidrug chemotherapy. breast cancer is one of the most common cancers among women worldwide. treatment of breast cancer by application of biological rationales gives us the ability to match the correct pharmacology to individual tumour genetic p...

in this study, we investigated the relationship between the genetic polymorphism of growth differentiation factor 9 (gdf9) genes and the litter size in 384 individuals of five breeds of black goats. four pairs of primers were designed to detect single nucleotide polymorphism of gdf9 gene in goats by pcr-sscp. the least square was used to analyze the relation between different genotypes and the ...

background: approximately 180 mutations have been described in β-thalassemia worldwide with specific spectrum in each ethnic population. this study determines the spectrum and the frequency of β-thalassemia mutations in patients with β-thalassemia trait and sickle cell-β-thalassemia.   methods: fifteen compound heterozygous sickle cell thalassemia (sct) and 23 β-thalassemia trait patients were ...

Background Ghezel sheep are highly prolific and one of the local sheep breeds in Iran and Turkey. Growth differentiation factor-9 (GDF9) gene has been found to be essential for growth and differentiation of early ovarian follicles. Novel mutations in GDF9 have been associated with increased ovulation rates and high litter sizes in heterozygous carriers. Therefore, fecundity gene for GDF9 (FecGH...