abstract background and objective: obesity is an important risk factor for development of hypertension. we investigated the association between body mass index (bmi) and blood pressure in adolescents. methods: the cross-sectional study was performed on 694 adolescents aged 12-18 years from middle and high schools located in 4 districts of shiraz, iran. height, weight, and systolic and diastolic...

Introduction: Glycyrrhiza glabra (Licorice) has been traditionally used as a medicinal plant in Iran for treatment of diseases such as gastric ulcer and arthrosclerosis. In this study, in order to determine some of its mechanisms, effects of hydroalcoholic extract of Glycyrrhiza glabra was examined on the blood pressure in rats. Methods: Adult male rats were anesthetized via injection of pen...

BACKGROUND Right ventricular (RV) mechanical support is well described in cases of sudden increase in RV afterload. In cases of chronic RV pressure overload (e.g., pulmonary arterial hypertension), it has rarely been described. METHODS The pulmonary artery was banded in 18 sheep. In the acute group (n = 9), we immediately implanted a Synergy Pocket Micro-Pump. Blood was withdrawn from the rig...

Ramadan is a holy month for Muslims and fasting in this month is the rule for any healthy matured person. Nutritional and behavioral changes occurred during Ramadan fasting may lead to several physiological change, such as blood pressure (2). Studies evaluated the effects of Ramadan fasting on blood pressure in hypertensive patients, are scarce and reported inadequate results. In this paper a s...

objective : this study aims to describe the blood pressure profile of newborns of preeclampsia mothers in vali-e-asr hospital during 2003-2004. materials and methods : in this cross-sectional descriptive analytical study 200 mothers and their newborns were studied. blood pressure of all newborns was checked by oscillometric method on the first day after birth and recorded in a questionnaire alo...

The effects of acute anoxia on pulmonary artery blood pressure, induced by breathing low oxygen (10 per cent 02 in N2) for short periods of time, have not been reported in man. Since acute anoxia is used extensively as a cardiac test and is frequently encountered in anesthesia, changes resulting in the pulmonary artery blood pressure should be of interest. METHODS. The influence of breathing 10...

OBJECTIVE Systolic pressure variation results from cyclical fluctuation in the intra-thoracic pressure associated with mechanical ventilation and has been used as a measure of relative hypovolemia in mechanically ventilated patients. The impact of the magnitude of the tidal volume and airway pressure on systolic pressure variation, however, has not been examined in mechanically ventilated patie...

Experiments are presented to show the effects of (1) propranolol on tbe response of systolic blood pressure and diastolic blood pressure to bilateral carotid artery occlusion in choralose-anesthetized dogs; (2) the effects of propranolol on acute hypertensive states in chloralose-anesthetized dogs; and (3) the effects of propranolol on the response of trained awake dogs to bilateral carotid art...