abstract:background : hyperbilirubinemia is one of the most common cause of congenital sensory neuronal hearing loss. these patients are screened by auditory brainstem response (abr) test at bilirubin levels higher than 1% of gestational weight. aim: to determine whether hyperbilirubinemia less than 1% of gestational weight could induce hearing loss and abnormal auditory brainstem response (abr...

background: etomidate and propofol are common anesthetic agents. previous studies say that etomidate can be used in patients with limited hemodynamic reserve and propofol can lead to more hemodynamic instabilities. th is study was performed to explore the cardiovascular response during the induction of anesthesia with etomidate or for comparison, propofol in elective orthopedic surgeries. mater...

problematic dyes extensively used in different industries such as textile, paper, food, plasticsand cosmetics have undesirable environmental effects. white rot fungi demonstrating effective extracellularenzyme system, which is capable of degrading dyes and various xenobiotics. the aim of this study was tooptimize decolorization of reactive blue 19 (rb19) dye using phanerochaetechrysosporium. a ...

background: although a variety of methods have been suggested to reduce stress, anxiety and pain intensity due to spinal needle skin puncture, their adverse effects restrict theirs widespread administration. in this study we evaluated the effects of oral tizanidine on the reduction of pain caused by spinal needle puncture and hemodynamic responses. methods : in this double blind randomized clin...

results there were no significant differences in baseline characteristics between two groups except serum ast level. complete evr rate at week 12 in the vitamin d group was significantly higher than the controls (100% vs 84.4%; p = 0.023) whereas this figure was not significant when genotypes 1 and 4 or 2 and 3 in the test group were compared to those of the control (100% vs 86.7%; p = 0.19 and...

background and aims:il-22 is an α-helical cytokine.il-22 binds to a heterodimeric cell surface receptor composed of il-10r2 and il-22r1subunits.il-22r is expressed on tissue cells and it is absent on immune cells.il-22 and il-10 receptor chains play a role in cellular targeting and signal transduction to selectively initiate and regulate immune responses. the aim of this study was to investigat...

effect of ethanol consumption on fear response in human and conventional animal models (rodents) is controversial. the present study aimed to investigate the effect of ethanol administration on fearfulness in poultry as an alternative animal model.being a reliable measure in avian species, tonic immobility was used to evaluate the fear response in 60 roosters orally administered with ethanol. d...

the effect of underground cavities in site seismic response was studied over the subway tunnels that are under construction in the city of karaj, using ambient noise measurements as well as numerical modeling. the idea for this research comes from the observation of differences in experimental site transfer function, calculated on more than 100 locations of the city, for the areas near the unde...

to follow-up the present study, 40 mature female rats were used. the animals were divided into test,control and sham groups. the rats in the test group were laparotomized and unilateral ovariectomy was done. on the 1st and 2nd met-oestrous after operation, the tissue samples were dissected out and processed for histological study. the intact ovary in the test group underwent a significant (p

a weighted linear regression model with impercise response and p-real explanatory variables is analyzed. the lr fuzzy random variable is introduced and a metric is suggested for coping with this kind of variables. a least square solution for estimating the parameters of the model is derived. the result are illustrated by the means of some case studies.