Attributional styles and stress-related atherogenic plasma lipid reactivity in essential hypertension

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2014
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Kuebler, Ulrike
Trachsel, Manuel
von Känel, Roland
Abbruzzese, Elvira
Ehlert, Ulrike
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Zusammenfassung

Objective
Hypertension and an atherogenic lipid profile are known risk factors for coronary heart disease (CHD). Hypertensives show greater changes in atherogenic plasma lipids to acute stress than normotensives. In this study, we investigated whether attribution of failure is associated with lipid stress reactivity in hypertensive compared with normotensive men.

Methods
18 normotensive and 17 hypertensive men (mean ± SEM; 45 ± 2.2 years) underwent an acute standardized psychosocial stress task that can be viewed as a situation of experimentally induced failure. We assessed external-stable (ES), external-variable (EV), internal-stable (IS), and internal-variable (IV) attribution of failure and psychological control variables (i.e. extent of depression and neuroticism). Moreover, total cholesterol (TC), low-density-lipoprotein cholesterol (LDL-C), and norepinephrine were measured immediately before and several times after stress.

Results
ES moderated TC- and LDL-C-stress reactivity in hypertensives as compared to normotensives (interaction mean arterial pressure [MAP]-by-ES for TC: F = 3.71, p = .015; for LDL-C: F = 3.61, p = .016). TC and LDL-C levels were highest in hypertensives with low ES immediately after stress (p ≤ .039). In contrast, hypertensives with high ES did not differ from normotensives in TC and LDL-C immediately after stress (p's > .28). Controlling for norepinephrine, depression, and neuroticism in addition to age and BMI did not significantly change results. There were no significant associations between lipid baseline levels or aggregated lipid secretion and IS, IV, or EV (p's > .23).

Conclusion
Our data suggest that ES may independently protect from elevated lipid stress reactivity in hypertensive individuals. ES thus might be a protective factor against CHD in hypertension.

Zusammenfassung in einer weiteren Sprache
Fachgebiet (DDC)
150 Psychologie
Schlagwörter
Attributional styles; Cholesterol; Low-density-lipoprotein cholesterol; Hypertension; Plasma lipids; Psychosocial stress; Trier Social Stress Test
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ISO 690KUEBLER, Ulrike, Manuel TRACHSEL, Roland VON KÄNEL, Elvira ABBRUZZESE, Ulrike EHLERT, Petra H. WIRTZ, 2014. Attributional styles and stress-related atherogenic plasma lipid reactivity in essential hypertension. In: Journal of Psychosomatic Research. 2014, 77(1), pp. 51-56. ISSN 0022-3999. eISSN 1879-1360. Available under: doi: 10.1016/j.jpsychores.2014.04.004
BibTex
@article{Kuebler2014Attri-29659,
  year={2014},
  doi={10.1016/j.jpsychores.2014.04.004},
  title={Attributional styles and stress-related atherogenic plasma lipid reactivity in essential hypertension},
  number={1},
  volume={77},
  issn={0022-3999},
  journal={Journal of Psychosomatic Research},
  pages={51--56},
  author={Kuebler, Ulrike and Trachsel, Manuel and von Känel, Roland and Abbruzzese, Elvira and Ehlert, Ulrike and Wirtz, Petra H.}
}
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    <dcterms:abstract xml:lang="eng">Objective&lt;br /&gt;Hypertension and an atherogenic lipid profile are known risk factors for coronary heart disease (CHD). Hypertensives show greater changes in atherogenic plasma lipids to acute stress than normotensives. In this study, we investigated whether attribution of failure is associated with lipid stress reactivity in hypertensive compared with normotensive men.&lt;br /&gt;&lt;br /&gt;Methods&lt;br /&gt;18 normotensive and 17 hypertensive men (mean ± SEM; 45 ± 2.2 years) underwent an acute standardized psychosocial stress task that can be viewed as a situation of experimentally induced failure. We assessed external-stable (ES), external-variable (EV), internal-stable (IS), and internal-variable (IV) attribution of failure and psychological control variables (i.e. extent of depression and neuroticism). Moreover, total cholesterol (TC), low-density-lipoprotein cholesterol (LDL-C), and norepinephrine were measured immediately before and several times after stress.&lt;br /&gt;&lt;br /&gt;Results&lt;br /&gt;ES moderated TC- and LDL-C-stress reactivity in hypertensives as compared to normotensives (interaction mean arterial pressure [MAP]-by-ES for TC: F = 3.71, p = .015; for LDL-C: F = 3.61, p = .016). TC and LDL-C levels were highest in hypertensives with low ES immediately after stress (p ≤ .039). In contrast, hypertensives with high ES did not differ from normotensives in TC and LDL-C immediately after stress (p's &gt; .28). Controlling for norepinephrine, depression, and neuroticism in addition to age and BMI did not significantly change results. There were no significant associations between lipid baseline levels or aggregated lipid secretion and IS, IV, or EV (p's &gt; .23).&lt;br /&gt;&lt;br /&gt;Conclusion&lt;br /&gt;Our data suggest that ES may independently protect from elevated lipid stress reactivity in hypertensive individuals. ES thus might be a protective factor against CHD in hypertension.</dcterms:abstract>
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