The relation between the carbon dioxide tension of the capillary blood and the state of the blood vessels of the skin has been studied plethysmographically in curarized patients anaesthetized with halothanc in oxygen. It was observed that hypocapnia consistently caused constriction of the cutaneous blood vessels. The vasoconstrictive reaction was uninfluenced by hexamethonium bromide but was bl...

Syzygium polyanthum (Wight) Walp. var. polyanthum leaves are consumed as a traditional Malay treatment of hypertension. This study investigates hypotensive potential of aqueous (AESP) and residual methanolic (met-AESP) extracts of S. polyanthum leaves and possible involvement of autonomic receptors. AESP and met-AESP (20 to 100 mg/kg) were intravenously administered into anaesthetized Wistar-Ky...

Hypoxia is a naturally occurring environmental challenge for embryonic reptiles, and this is the first study to investigate the impact of chronic hypoxia on the in ovo development of autonomic cardiovascular regulation and circulating catecholamine levels in a reptile. We measured heart rate (f(H)) and chorioallantoic arterial blood pressure (MAP) in normoxic ('N21') and hypoxic-incubated ('H10...

among 14,102 patients admitted in teaching hospitals of the isfahan medical school, whose records were studied, 2,122 or 15.4% of patients had high blood pressure. the most common reason for blood pressure in this group was diseases of the kidney and for those, glomerolonephritis and pilonephrititis were important causes. among patients under 30 years old, high blood pressure was twice as commo...

background: prediabetes is a high‑risk condition for type 2 diabetes mellitus. the growing prevalence of diabetes emphasizes on the necessity of concentrating on various strategies to prediabetes prevention and management. probiotics as a group of functional foods might exert antidiabetic effects. this study aimed to assess the effects of probiotic administration on blood lipid profile and bloo...

The effects of ganglionic blockade on the circulatory components of the defense reaction were studied in 25 anesthetized cats. Hexamethonium alone partially blocked the response; a combination of hexamethonium and atropine was necessary to block it completely. Vasodilation of skeletal muscle was reversed to vasoconstriction during hexamethonium infusion. Direct recording from preand postganglio...

background melissa officinalis, an herbal drug, is well known and frequently applied in traditional and modern medicine. yet, there is inadequate information regarding its effects on electrical properties of the heart. the present study attempted to elucidate the effects of melissa officinalis aqueous extract on electrocardiogram (ecg) in rat. objectives ecg is an easy, fast and valuable tool t...

abstract background: dietary pattern is an effective way of studying the effect of diet on diseases. we investigated the association between dietary patterns and blood pressure (bp) in adults aged 20-50 years. methods: in a cross-sectional design, 418 individuals were selected through stratified multistage random sampling from households living in different regions of shiraz. information on dem...

abstract background: hypertension in pregnancy is one of the prevalent disorders resulting in maternal death. the aim of this study was to investigate the effect of stretching exercise and walking on changes of blood pressure in nulliparous women during pregnancy. materials and methods: this was a quasi-experimental trial that consisted three groups of women who took part in pre- and post-tests...

introduction: it seems that improvement in care and new treatment and screening methods along with better control of diabetes mellitus (dm) has led to a change in incidence of diabetic complications, especially diabetic retinopathy .this study was performed to assess the 4 years incidence rate of diabetic retinopathy in patients with type ii diabetes and factors affecting its progression. metho...