abstract prevention of infectious diseases by immunization in children has markedly diminished the morbidity and mortality of once common contagious diseases in many countries worldwide. immunization programs have led to the global eradication of smallpox, elimination of measles and poliomyelitis in regions of the world, and substantial reduction in the morbidity and mortality attributed to dip...

background : nowadays, problem solving skills, clinical decision making ability and  making a proper  relationship to clients are essential necessities for nursing graduates, however there are few studies which investigated nursing student’ responses to clients with problematic situations based on nursing theories addressing interactions. the purpose of this study was analyzing the nursing stud...

introduction: research has asserted mcq items using three response options (one correct answer with two distractors) is comparable to, and possibly preferable over, traditional mcq item formats consisting of four response options (e.g., one correct answer with three distractors), or five response options (e.g., one correct answer with four distractors). some medical educators have also adopted ...

Background: Major histocompatibility complex (MHC) is one of the best characterized genetic regions controlling immune responses against vaccines. Identifying the association between MHC haplotypes and improved immune responses would be useful in genetic breeding strategies in animals. OBJECTIVES: MHC class II B genetic diversity and its association with humoral immune responses against Newcast...

objective: several vaccines against hiv have been investigated but none has been approved as an effective hiv vaccine. an approach that could induce stronger immune response against the pathogen is utilizing a multi-epitopic vaccine. this strategy was used in the design of several vaccines and resulted in improved immune responses. materials and methods: in this study a multi-epitopic fusion p...

Background: Diabetes is an important risk factor for cardiovascular events. Endothelial dysfunction is the main reason cause of disability and death in diabetic patients and death. The present study investigates the effects of metformin and glibenclamide on vasoconstrictive and vasodilative responses in the diabetic rat aorta. Methods: Rats were divided into four experimental groups (con...

background: the areas of the bed nucleus of the stria terminalis (bst) with a high density of estrogen receptors are involved in cardiovascular regulation and send axonal projections to the rostroventrolateral medulla (rvlm). we aimed to find the contribution of the rvlm to cardiovascular responses elicited by glutamate microinjection into the bst. methods: experiments were done in α-chloralose...