in this study we estimated the allele and genotype frequencies of scd1 and dgat1 gene polymorphism. the analysis was conducted on 408 holstein cows from five dairy herds in isfahan province. genotypes were identified using pcr-rflp technique. two genetic variants (a and v) of the scd1 gene were observed in this experiment. the frequency of a-allele ranged from 0.49 to 0.66, while frequency of v...

introduction: endurance training has significant effects on the renewal of heart tissue, including myosin heavy chain (mhc) proteins. on the other side, purine-rich element-binding protein β (purb) decreases the &alphamhc; gene expression. the aim of this study was to determine the impact of exercise endurance training on purb gene expression in the heart of wistar rats. methods: fourteen rats ...

brucellosis, caused by brucella spp., is an important zoonotic disease that causes abortion and infertility in cattle and undulant fever in humans. various studies have examined cell-free native and recombinant proteins as candidate protective antigens in animal models. among brucella immunogenes, antigen based on ribosomal preparation has been widely investigated. in this study, the immunogeni...

methods the current study generated two recombinant lentiviruses, plex-gcn and plex-gcp, bearing noxa and puma, respectively. transduction of both genes to hepatocarcinoma (hepg2) was verified using fluorescent microscopic analysis, western blotting, and quantitative real-time polymerase chain reaction (pcr). to evaluate the potential of noxa and puma to initiate apoptosis, a caspase-9 real-tim...

mdma generally known as ecstasy, have deleterious effects on the serotonergic neurotransmitter system. recent findings suggest that the liver and brain are major target organs of mdma-related toxicities. although most research is being dynamically performed on brain, however, the molecular mechanisms by which mdma elicits adverse effects in both organs are poorly undrestood.the present study wa...

background 3-4methylenedioxymethamphetamine (mdma) is a synthetic and psychoactive drug, which is known popularly as ecstasy and has toxic effects on human organs. objectives considering the potential toxic interaction, this study was performed to quantify the expression of bax and bcl2 genes in mdma-induced hepatotoxicity on rat liver. subsequently, we evaluated pentoxifylline as a possible pr...

rapid detection and differentiation of infectious bronchitis virus (ibv) involved in the disease outbreak is very important for controlling disease and developing new vaccines. in the present study, three regions of the genome of ibv vaccine and field isolates including s1 gene, gene 3 and nucleocapsid (n) gene along with 3' untranslated region (3' utr) were amplified and subjected to restricti...

objective: today, aids is considered as a global problem and many efforts to generate an effective vaccine against this disease have been made, but remain inconclusive. dna vaccines are a member of the new generation of vaccines that can efficiently stimulate the immune system. however, recent findings indicate low immunogenicity for these vaccines and it is believed that these types of vaccine...