the systemic complications of blood donation are the first reasons why patients fail to return for further blood donation. this study was designed to determine the frequency of these complications and their associated risk factors among blood donors in tehran. also, we aimed to provide suitable methods to decrease the frequency of these adverse events, thereby eliminating the most important cau...

extensive blood loss in total hip surgery is well known and is associated with a high transfusion rate of allogeneic blood. the aim of this study is to assess the effects of intraoperative tranexamic acid on post-operative bleeding and need for allogeneic transfusion during hip fracture surgery. we investigated 67 patients undergoing hip fracture surgery in a prospective, randomized, double-bli...

background: ketamine is the only anesthetic agent that leads to an increase of blood pressure and heart rate by activation of sympathetic nervous system. however, there is a controversy about this effect of ketamine especially if used in small dosage. we proposed to evaluate the hemodynamic effect of small dose of ketamine during phacoemulsification. methods: one hundred patients of asa physica...

blood samples (291857) from 24 provinces of iran were tested for abo and rh groups. the rh complexes as well as kell, duffy, kidd, lutheran, kp and xg blood groups were tested only on a part of the material from tehran. results show a great deal of heterogeneity for abo and rh groups in various provinces of iran. the calculated gene frequencies are compared with those of other investigations in...

previous work by other investigators indicates a direct relation between the amount of protein in the diet and the level of urea in the blood . however, the present report shows that the type of protein , apart from its level in the ration , also has an effect on blood urea concentrations. when adult male or female rats of two strains were fed a ration in which the only source of protein was wh...

introduction: obesity is an independent risk factor in developing cvd, type ii diabetes, and gall bladder disease, different types of cancers, osteoarthritis and mortality. weight gain during adult life, especially during the third and fourth decades, is associated with increased blood pressure. methods: random samples of nearly 1493 men and women aged between 16 to 85 years old were selected f...

  Stem cells are naïve or master cells. This means they can transform into special 200 cell types as needed by body, and each of these cells has just one function. Stem cells are found in many parts of the human body, although some sources have richer concentrations than others. Some excellent sources of stem cells, such as bone marrow, peripheral blood, cord blood, other tissue stem cells and ...

Blood is a liquid tissue in which dissolved with abundant chemical factors and millions of different cells The reduction of unwanted side effects, especially diseases that emerge through blood such as HIV and hepatitis, has a significant role for modern medicine of transfusion and transplantation. The issues and costs of human blood collection and storage, direct this procedure towards t...