Pressor response to 30-s breathhold: a predictor of masked hypertension.

One in six adults has normal arterial blood pressure (BP) during a routine examination, but is hypertensive in other environments. This masked hypertension (MHT) may delay treatment until target organ damage has occurred. A sensitive, specific and economical test is needed to detect or exclude MHT in apparently normal subjects.

Normobaric hypoxia conditioning reduces blood pressure and normalizes nitric oxide synthesis in patients with arterial hypertension.

Objectives: Insufficient production and/or increased decomposition of the potent endogenous vasodilator nitric oxide plays an important role in development and progression of arterial hypertension and its complications. One of the most effective means of stimulating endogenous nitric oxide synthesis is controlled adaptation to hypoxia. This study examined the effect of a 20-day, intermittent, normobaric intermittent hypoxia conditioning (IHC) program on blood pressure (BP) and nitric oxide production in patients with stage 1 arterial hypertension.

Nitric oxide production and intensity of free radical processes in young men with high normal and hypertensive blood pressure.

Background: Young individuals with high normal blood pressure (HNBP) are at risk for hypertension. The aim of our study was to compare NO production and the intensity of free radical processes in young males with different BP levels.

Material/methods: Male subjects aged 18-45 years with normal BP, HNBP, and hypertension underwent physical and cardiological examination.