background: gonadotropin-releasing hormone agonists or antagonists are used in assisted reproductive technique cycles as premature luteinizing hormone secretion inhibition. studies have been reported different and contradictory results on the serum progesterone effect on intra-cytoplasmic sperm injection. objective: the purpose of this study was to evaluate the effect of serum progesterone leve...

background: the exact pathophysiology of testicular degeneration, following varicocele has not been completely understood yet.   objective: the current study was designed to determine the effect of varicocele on germinal epithelium (ge) cytoplasmic biohistochmical alterations.   materials and methods: to follow-up this study, left varicocele was induced in test groups. non-varicocelized rats we...

exploitation of the full potential of any hybrid requires the possessing of genetically high-purity seeds. commercial soybean hybrids have been developed using a cytoplasmic male sterility (cms) system. in order to avoid reduction in yield caused by using low-purity seeds, development of a simple, rapid, and accurate method for hybrid purity assessment is of great essence and significance. ther...

the possibility of occurrence of some rearrangements inside and or around coxii and atp6 genes and their relationship with male sterility in rice lines having wild abortive (wa)  cytoplasm was studied. two sterile (ir58025a and ir62829a) and two maintainer lines (ir58025b and ir62829b) were used. radioactive southern blotting was employed to carry out the experiments. the hybridization of coxii...

methods s. cerevisiae was cultured and then disrupted by sonication. after centrifugation, the harvested supernatant was considered to be a cytoplasmic extract. the protein concentration was determined by the biuret method and the extract was diluted to concentrations of 500, 1000, and 2000 µg protein/ml. the frequencies of apoptosis and necrosis were assessed in extract-treated k562 cells by e...

background: wolbachia  are common intracellular bacteria that infect different groups of arthropods including mos­quitoes. these bacteria modify host biology and may induce feminization, parthenogenesis, male killing and cyto­plasmic incompatibility (ci). recently wolbachia  is being nominated as a bio-agent and paratransgenic candidate to control mosquito borne diseases. methods: here we repor...

background: the use of assisted reproductive technology (art) is increasing in the world. the rate, efficacy and safety of art are very different among countries. there is an increase in the use of intra cytoplasmic sperm injection (icsi), single fresh embryo transfer (et) and frozen-thawed embryo transfer (fet). objective: the objective of this study was to compare pregnancy rate in fresh et a...

abstract: introduction & objective: the infertility treatment by using in vitro matured oocyte has many potential applications. it minimizes the risk of ovarian hyper stimulation and is an alternative treatment for women with polycystic ovarian syndrome who may have problems regarding stimulation for ivf. this method may prove important for subjects in need of fertility preservation and also pr...

background worldwide, the incidence of inflammatory bowel disease (ibd) is increasing. this study aims to evaluate the diagnostic value of two serological markers, atypical perinuclear anti-neutrophil cytoplasmic antibodies (atypical-p-anca) and anti-saccharomyces cerevisiae antibodies (asca), with the intent to determinetheir relationship to ulcerative colitis (uc) and crohn's disease (cd), in...

Antineutrophil cytoplasmic autoantibodies (ANCA) were detected in patients with autoimmune and vascular diseases such as Wegener's granulomatosis, polyarteritis nodosa and systemic lupus erythematosus. Indirect immunofluorescence (IIF) technique was employed to detect these autoantibodies. By this method, two general patterns of ANCA were seen: a cytoplasmic (cANCA) and a perinuclear form ...