background: the specific antibody response against newcastle disease virus (ndv) in the blood serum of chickens hatched from eggs exposed to low dose gamma-radiation was studied. materials and methods: two groups of eggs of commercial meat chicken lines were irradiated with the dose of 0.30 gy 60co gamma-rays before incubation and on the 19th day of incubation, respectively. the same number of ...

abstract a field experiment was conducted at plant pest and disease research institute in karaj,iran in 2005-2006 to determine the effect of low herbicide dose of clodinafop-propargyl on percentage of wild oat control, yield and economic return of wheat. the experiment included 2 wheat varieties (rooshan and niknejad (less and more competitiveness cultivar, respectively, 4 wild oat densities (0...

background: study of vascular and its secretory profile changes is an important issue in pathogenesis of radiation myelopathy. this paper reports the prostacyclin concentration changes after low-moderate doses of x-irradiation within a short period of time. materials and methods: cervical cords of wistar rats were irradiated to doses of 0.5, 1, 2, 4 and 6 gy x-rays. after 24 hours, 2 and 13 wee...

the aim of this study was to evaluate the outcomes of adding low-dose hcg (human chorionic gonadotropin), as an lh active supplement, to a gnrh antagonist protocol in patients undergoing assisted reproduction techniques. in this parallel-group randomized clinical trial, 137 infertile female outpatients aged 20 - 39 years were randomized into two groups: hcg group and non-hcg group. all patients...

‎ introduction: controversial results have been reported about the effect of morphine and stress on learning and spatial memory in rodents. there are very few studies about the effects of ultra low doses of morphine on memory. in this study, effects of acute administration of low and usual doses of morphine on memory formation and retention in the presence and absence of repeated stress were in...

The role of aspirin in women with infertility is controversial and the evidence is inconsistent; some studies have reported benefits in women undergoing IVF whilst others have not. An important gap in the literature was the question of when to start and when to stop aspirin and how long should aspirin be given for. In a 2007 systematic review on the effectiveness of aspirin on IVF outcomes invo...