Abnormal nocturnal blood pressure (BP) dipping status may be partly determined by nocturnal sympathetic activity. We studied the effect of nighttime dosing of an alpha(1)-adrenergic blocker, doxazosin, on the BP dipping status of 118 hypertensives, all of whom underwent 24-hour ambulatory BP monitoring before and after treatment. The mean nighttime/daytime ratio of systolic BP was increased (0....

BACKGROUND Obesity has been linked with abnormal nocturnal dipping of blood pressure (BP) in adults, which in turn is associated with poor cardiovascular outcomes. There are few data regarding abnormal dipping status in the obese pediatric population. The goal of this study was to further describe the relationship between obesity and non-dipping status on ambulatory blood pressure monitor (ABPM...

We report results of analysis of the ASCA observation of 1993, May 7th of the dipping LMXB source XBT0748-676, and propose a new explanation of the spectral evolution in dipping in this source. The behavior of the source was very unusual in that, in the band 1 3 keV, dipping extended around most of the orbital cycle with almost no non-dip intensity evident and the depth of dipping reached 100%....

Monitoring changes in populations of immature (larvae and pupae) mosquitoes are fundamental to determining mosquito-borne disease risk. Dipping is the most common method used to sample immature mosquitoes, but it can be biased towards particular species and instars. We aimed to assess the generality of the findings of Mori (1989), who showed that stirring the water of artificial containers gave...

Blunting of the normal drop in blood pressure (BP) from day to night is emerging as a strong prognostic indicator of cardiovascular morbidity and mortality. This study evaluated the effects of natural menopause on BP dipping in African American and white women. A total of 112 women (62 premenopausal and 50 postmenopausal) took part in the study. Pre- and postmenopausal groups were comparable in...

Is the Atherosclerotic Risk of Extreme Dipping in Youth Partly Explained by Exaggerated Morning Surge? To the Editor: I have read the article by Viera et al demonstrating that disrupted circadian rhythm of blood pressure (BP) in youth was a predictor of coronary calcium levels in younger adults. The study is of great interest because, although an association between normotensive nondippers and ...

OBJECTIVES Cardiovascular autonomic neuropathy (CAN) and abnormal circadian blood pressure (BP) rhythm are independent cardiovascular risk factors in patients with diabetes and associations between CAN, non-dipping of nocturnal BP and coronary artery disease have been demonstrated. We aimed to test if bedtime dosing (BD) versus morning dosing (MD) of the ACE inhibitor enalapril would affect the...

We present a detailed study of ant-dipping among the wild chimpanzees (Pan troglodytes verus) of Bossou, in southeastern Guinea, West Africa. Observations suggest a strong influence of prey (Dorylusspp.) characteristics, including aggressiveness and/or gregariousness, on tool length and technique employed by the chimpanzees. Bossou chimpanzees exhibit two ant-dipping techniques: 1) direct mouth...

Purpose: To provide spectral domain optical coherence tomography (SDOCT) of subretinal fibrin leakage and concomitant central serous chorioretinopathy (CSC) morphology in four cases. Likewise, to compare the SDOCT of these cases with others documented. Case reports: Four cases of acute onset CSC exhibiting serous neurosensory and retinal pigment epithelium detachment (PED) associated with a hyp...