Browsing Faculty of Health Sciences by Author "Ziemssen, Tjalf"
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Baroreceptor sensitivity, cardiovascular responses and ECG left ventricular hypertrophy in men: the SABPA study
Steyn, Hendrik Stefanus; Van Rooyen, Johannes Marthinus; Van Lill, Lisa; Malan, Leoné; Reimann, Manja; Ziemssen, Tjalf (Informa Health care, 2011)Aim. Research has shown a significant relationship between hypertension and attenuated baroreceptor sensitivity (BRS), which in turn reflects alterations of autonomic control of the cardiovascular system. The objective of ... -
Effects of acute and chronic stress on the L-arginine nitric oxide pathway in black and white South Africans: the sympathetic activity and ambulatory blood pressure in Africans study
Reimann, Manja; Hamer, Mark; Malan, Nicolaas T.; Malan, Leoné; Schlaich, Markus P.; Lambert, Gavin W.; Ziemssen, Tjalf (Lippincott, Williams & Wilkins, 2013)OBJECTIVE: This study investigated the impact of stress on effectors of the L-arginine/nitric oxide (NO) system including the endogenous inhibitor asymmetric dimethylarginine (ADMA). METHODS: Black (n = 168) and white ... -
Nocturnal blood pressure, 3-methoxy-4-hydroxyphenylglycol and carotidIntima-media thickness: the SABPA Study
Uys, Aletta S.; Malan, Leoné; Van Rooyen, Johannes M.; Steyn, Hendrik S.; Ziemssen, Tjalf; Reimann, Manja (Elsevier, 2013)Background: Research demonstrated a significant relationship between elevated nocturnal blood pressure and sym-pathetic hyperactivity. The study aimed to investigate possible associations between norepinephrine ...