In vitro lymphocyte responses of high responder (HR) and low responder (LR) guinea pigs from pe-ripheral blood lymphocytes (PBL) to parasite antigens soluble protein third stage larvae (SPL3) and soluble protein adult stage ( SPA), non-parasite antigen ovalbumin (OVA) were examined. There was substantial differences between HR and LR guinea pigs in the rate of acquisition of responsiveness to t...

The fall in blood sugar with carbutamide (BZ55) 24 hr. after the maintenance dose of insulin (28.1%+/-2.9 s.e) in rabbits made severely diabetic with alloxan was significantly different from the change in the blood sugar with the same drug given 72 hr. (6.8%+/-2.0) or distilled water given 24 hr. (7.7%+/-1.3) respectively after the last dose of insulin. It is postulated that the drug acts by li...

PURPOSE Pulse wave velocity (PWV) is at least partially controlled by vascular tone. Vascular tone and underlying physiological processes such as sympathetic activity, plasma catecholamin, and cortisol levels have been shown to follow diurnal variations. MATERIALS AND METHODS Carotid-to-radial PWV was non-invasively assessed by applanation tonometry in 21 young (26.5+/-2.3 years) healthy men ...

To investigate the effects of storage temperature on the responsiveness to agonists of human platelets prepared from stored blood, we measured the aggregability and acid-base status of platelets from 96 healthy subjects before and after storage of whole blood at 4 degrees C and room temperature (RT) up to 48 hr. After 24 hr storage at 4 degrees C, there were no significant differences in agonis...

To understand this problem, irstly we need to know that the sinoatrial node, responsible for generating electrical impulses that will turn into myocardial contraction is in luenced by the autonomic nervous system. The sympathetic nerves of the autonomic nervous system increase the blood pressure and heart rate (HR) and the parasympathetic nerves reduce the blood pressure and HR. So, the heart b...