Increases in lipids and immune cells in response to exercise and mental stress in patients with suspected coronary artery disease: effects of adjustment for shifts in plasma volume.

Abstract:

:This study examined the role of shifts in plasma volume on lipid and immune reactions to stress. Lipid, immune, rheological, and cardiovascular reactions to exercise and mental stress in 51 patients with suspected coronary artery disease were determined. Blood pressure and heart rate were measured during and blood samples taken at the end of each rest and task. Lipids (total cholesterol, triglycerides, HDL, LDL) and immune cells (lymphocytes, monocytes, granulocytes) increased with exercise, whereas cholesterol, LDL, and lymphocytes increased with mental stress. Plasma volume decreased by 1 and 5% following mental and exercise stress, respectively. The task-induced increases in lipids were no longer statistically significant following adjustment for changes in plasma volume, whereas the increases in immune cell numbers survived such correction. This study provides evidence that, in coronary artery disease patients, exercise and mental stress-induced increases in lipids but not immune cells can be largely accounted for by shifts in plasma volume.

journal_name

Biol Psychol

journal_title

Biological psychology

authors

Bacon SL,Ring C,Lip GY,Carroll D

doi

10.1016/s0301-0511(03)00113-3

keywords:

subject

Has Abstract

pub_date

2004-02-01 00:00:00

pages

237-50

issue

3

eissn

0301-0511

issn

1873-6246

pii

S0301051103001133

journal_volume

65

pub_type

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