IDENTIFICATION OF BLOOD PRESSURE CONTROL MECHANISMS BY POWER SPECTRAL ANALYSIS (English)

Clinical and Experimental Pharmacology and Physiology

Blood pressure and organ perfusion are controlled by a variety of cardiovascular control systems, such as the baroreceptor reflex and the renin–angiotensin system (RAS), and by local vascular mechanisms, such as shear stress‐induced release of nitric oxide (NO) from the endothelium and the myogenic vascular response. Deviations in arterial blood pressure from its set point activate these mechanisms in an attempt to restore blood pressure and/or secure organ perfusion. However, the response times at which different cardiovascular mechanisms operate differ considerably (e.g. blood pressure control by the RAS is slower than blood pressure control via the baroreceptor reflex).

Owing to these different response times, some cardiovascular control systems affect blood pressure more rapidly and others more slowly. Thus, identifying the frequency components of blood pressure variability (BPV) by power spectral analysis can potentially provide important information on individual blood pressure control mechanisms.

Evidence is presented that the RAS, catecholamines, endothelial‐derived NO and myogenic vascular function affect BPV at very low frequencies (0.02–0.2 Hz) and that low‐frequency (LF) BPV (0.2–0.6 Hz) is affected by sympathetic modulation of vascular tone and endothelial‐derived NO in rats. In humans, LF BPV (0.075–0.15 Hz) is affected by sympathetic modulation of vascular tone and myogenic vascular function. The impact of the RAS and endothelial‐derived NO on BPV in humans requires further investigation.

In conclusion, power spectral analysis is a powerful diagnostic tool that allows identification of pathophysiological mechanisms contributing to cardiovascular diseases, such as hypertension, heart failure and stroke, because it can separate slow from fast cardiovascular control mechanisms. The limitation that some cardiovascular control mechanisms affect the same frequency components of BPV requires the combination of blood pressure spectral analysis with other techniques.

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Table of contents – Volume 34, Issue 4

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Tables of content are generated automatically and are based on records of articles contained that are available in the TIB-Portal index. Due to missing records of articles, the volume display may be incomplete, even though the whole journal is available at TIB.

255
DIFFERENCES BETWEEN PATHOLOGICAL AND PHYSIOLOGICAL CARDIAC HYPERTROPHY: NOVEL THERAPEUTIC STRATEGIES TO TREAT HEART FAILURE
McMullen, Julie R / Jennings, Garry L | 2007
263
INVESTIGATION OF THE MICROCIRCULATION AND THE STATE OF OXIDATIVE STRESS IN THE RAT AFTER SCORPION ENVENOMATION
Sahnoun, Z / Chaker‐Krichen, S / Kassis, M / Hakim, A / Hammami, S / Ghozzi, H / Bouayed, N / Bellasfar, Z / Zeghal, KM / Rebai, T | 2007
269
SPATIAL PULMONARY FLOW DISTRIBUTION IN RABBIT ISOLATED LUNGS IS A POOR REPRESENTATION OF THE SITUATION IN VIVO*
Hübler, M / Heller, AR / Bleyl, JU / Rössel, T / Stehr, SN / Koch, T | 2007
274
EFFECT OF HIGH SALT INTAKE ON LOCAL RENIN–ANGIOTENSIN SYSTEM AND VENTRICULAR DYSFUNCTION FOLLOWING MYOCARDIAL INFARCTION IN RATS
De Resende, Micheline M / Mill, José G | 2007
280
INVOLVEMENT OF THE ENDOTHELIN ETB RECEPTOR IN GENDER DIFFERENCES IN DEOXYCORTICOSTERONE ACETATE‐SALT‐INDUCED HYPERTENSION
Kawanishi, Hideaki / Hasegawa, Youichi / Nakano, Daisuke / Ohkita, Mamoru / Takaoka, Masanori / Ohno, Yukihiro / Matsumura, Yasuo | 2007
286
IDENTIFICATION OF LIGANDS BINDING SPECIFICALLY TO INFLAMMATORY INTESTINAL MUCOSA USING PHAGE DISPLAY
Takagi, Tamaki / Arisawa, Tomiyasu / Yamamoto, Kazumasa / Hirata, Ichiro / Nakano, Hiroshi / Sawada, Makoto | 2007
290
PHARMACOKINETICS AND PHARMACODYNAMICS OF A NITRIC OXIDE‐RELEASING DERIVATIVE OF ENALAPRIL IN MALE BEAGLES
Okuyama, Cristina E / Mendes, Gustavo Duarte / Faro, Renato / Rezende, Vinicius M / Lagos, Rodolfo Monaco / Astigarraga, Rafael E B / Antunes, Edson / De Nucci, Gilberto | 2007
296
MORPHOLOGICAL AND FUNCTIONAL CHANGES IN P‐GLYCOPROTEIN DURING DEXAMETHASONE‐INDUCED HEPATOMEGALY
Micuda, Stanislav / Fuksa, Leos / Mundlova, Lucie / Osterreicher, Jan / Mokry, Jaroslav / Cermanova, Jolana / Brcakova, Eva / Staud, Frantisek / Pokorna, Pavla / Martinkova, Jirina | 2007
304
INHIBITION OF NAD(P)H OXIDASE REDUCES FIBRONECTIN EXPRESSION IN STROKE‐PRONE RENOVASCULAR HYPERTENSIVE RAT BRAIN
Cui, Chunmei / Chen, Alex F / Jiang, Zongpei / Wu, Qingqing / Lin, Jianwen / Wen, Hongmei / Zeng, Jinsheng | 2007
310
CALCIUM ANTAGONIST PROPERTY OF CPU228, A DOFETILIDE DERIVATIVE, CONTRIBUTES TO ITS LOW INCIDENCE OF TORSADES DE POINTES IN RABBITS
Huang, Zhi‐Jiang / Dai, De‐Zai / Li, Na / Na, Tao / Ji, Min / Dai, Yin | 2007
318
DOES NITRIC OXIDE MODULATE TRANSMITTER RELEASE AT THE MAMMALIAN NEUROMUSCULAR JUNCTION?
Nickels, Travis J / Reed, Grant W / Drummond, Justin T / Blevins, Dustin E / Lutz, Megan C / Wilson, David F | 2007
327
NITRIC OXIDE, ERECTILE DYSFUNCTION AND BETA‐BLOCKER TREATMENT (MR NOED STUDY): BENEFIT OF NEBIVOLOL VERSUS METOPROLOL IN HYPERTENSIVE MEN
Brixius, K / Middeke, M / Lichtenthal, A / Jahn, E / Schwinger, R H G | 2007
332
EFFECTS OF HYPOXIA/REPERFUSION INJURY ON DRUG DISPOSITION IN THE RAT ISOLATED PERFUSED LIVER
Arab, HA / Cheung, K / Hickman, PE / Potter, JM / Kadkhodaee, M / Roberts, MS | 2007
339
INHIBITION OF INDUCIBLE NITRIC OXIDE SYNTHASE ATTENUATES ACUTE ENDOTOXIN‐INDUCED LUNG INJURY IN RATS
Su, Chain Fa / Yang, Fwu Lin / Chen, Hsing I | 2007
347
ADMINISTRATION OF EXOGENOUS ERYTHROPOIETIN β AFFECTS LIPID PEROXIDATION AND SERUM PARAOXONASE‐1 ACTIVITY AND CONCENTRATION IN PREDIALYSIS PATIENTS WITH CHRONIC RENAL DISEASE AND ANAEMIA
Marsillach, Judit / Martínez‐Vea, Albert / Marcas, Luis / Mackness, Bharti / Mackness, Michael / Ferré, Natàlia / Joven, Jorge / Camps, Jordi | 2007
347
ADMINISTRATION OF EXOGENOUS ERYTHROPOIETIN b AFFECTS LIPID PEROXIDATION AND SERUM PARAOXONASE-1 ACTIVITY AND CONCENTRATION IN PREDIALYSIS PATIENTS WITH CHRONIC RENAL DISEASE AND ANAEMIA:
Marsillach, J. / Martinez-Vea, A. / Marcas, L. / Mackness, B. / Mackness, M. / Ferre, N. / Joven, J. / Camps, J. | 2007
350
METHODS OF ANALYSIS AND PHYSIOLOGICAL RELEVANCE OF RHYTHMS IN SYMPATHETIC NERVE DISCHARGE
Barman, Susan M / Kenney, Michael J | 2007
356
SYMPATHETIC RHYTHMS AND NERVOUS INTEGRATION
Gilbey, Michael P | 2007
362
IDENTIFICATION OF BLOOD PRESSURE CONTROL MECHANISMS BY POWER SPECTRAL ANALYSIS
Stauss, Harald M | 2007
369
DIFFERENTIAL EFFECTS OF VASOPRESSINERGIC AND OXYTOCINERGIC PRE‐AUTONOMIC NEURONS ON CIRCULATORY CONTROL: REFLEX MECHANISMS AND CHANGES DURING EXERCISE
Michelini, Lisete Compagno | 2007
377
EXERCISE TRAINING AND SYMPATHETIC NERVOUS SYSTEM ACTIVITY: EVIDENCE FOR PHYSICAL ACTIVITY DEPENDENT NEURAL PLASTICITY
Mueller, Patrick J | 2007
385
CORRIGENDUM
| 2007

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