Sex differences in sympathetic-adrenal medullary reactions induced by different stressors

Frankenhaeuser, Marianne; Dunne, Elizabeth; Lundberg, Ulf

doi:10.1007/bf00428693

Cited by 166 publications

(31 citation statements)

References 16 publications

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“…The sexually dimorphic behaviour during stress has been related to fundamental physiological differences between males and females. For example, a study in humans found that males secrete higher levels of adrenaline when compared to females of the same age while exposed to identical stressors [9]. Sex differences in response to stress in rats have also been identified [10,11].…”

Section: Introductionmentioning

confidence: 99%

Sex differences in skilled movement in response to restraint stress and recovery from stress

Jadavji

Metz

2008

Behavioural Brain Research

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Sex differences exist in skilled movement, and skilled motor performance is also influenced by stress. As shown for cognitive function, the effects of stress are usually characterized by considerable sexual dimorphism. The purpose of this study was to investigate sex differences in skilled motor function in response to stress. Male and female Long-Evans rats were trained and tested in skilled reaching and skilled walking tasks. Both groups of animals were then exposed to daily restraint stress for 15 days. Recovery from daily stress was assessed by comparing reaching performance at 10 min versus 60 min after restraint stress, and recovery from chronic stress was tested for 21 days after cessation of stress. Animals were tested daily in skilled reaching for the entire period. Observations showed that females performed significantly better than males during the stress period in terms of reaching success and number of attempts needed to grasp a food pellet. No difference between testing at 10 or 60 min after daily stress was found. Analysis of movement patterns and recovery from stress indicated that males and females use different strategies to overcome stress-induced motor disturbance. While male rats preferred to use original movement patterns, females tended to modify these patterns in order to increase reaching success. Modification of movement patterns in female rats was accompanied by a faster recovery in success rate after the cessation of stress. These results indicate sex differences in skilled reaching in response to stress, and in the recovery period after stress.

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Section: Introductionmentioning

confidence: 99%

Sex differences in skilled movement in response to restraint stress and recovery from stress

Jadavji

Metz

2008

Behavioural Brain Research

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“…Severe or episodic hypertension seen in 90% of pheochromocytoma patients has not been observed as a feature of TCBS. Men seem to produce higher levels of plasma catecholamines in response to emotional stress and are more sensitive to catecholamine mediated vasoconstriction than women 43,44 ; but women are far more commonly affected. Recurrences are rare with repetitive or worsening stress.…”

Section: Pathophysiology and Mechanismsmentioning

confidence: 98%

Transient Cardiac Ballooning—The Syndrome

Gupta

Sech

Lazzara

2009

Clinical Cardiology

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Transient cardiac ballooning is usually a reversible clinical entity. A patient typically presents with chest pain, electrocardiogram (ECG) abnormalities like ST‐segment elevation (most commonly reported) or depression, and elevated cardiac enzymes, but has no or nonobstructive coronary artery disease. Left ventriculography reveals transient akinesis of the involved portion of the myocardial wall with compensatory hyperkinesis of the remaining myocardium, leading to ballooning of the noncontracting myocardial wall during systole. Acute regional myocardial dysfunction ensues, which normalizes on average within 1 to 6 weeks. The hypotheses for these pathophysiologic changes range from direct cardiac myocyte injury to postischemic myocardial stunning to neurotransmitter actions. The objective of this article is to present a succinct description of a small case series accompanied with various recently reported presentations and morphology by left ventriculogram and a detailed review of available data on underlying pathophysiology. In addition, a discussion on current diagnostic guidelines, treatment, prognosis, and potential future investigations is included. Copyright © 2009 Wiley Periodicals, Inc.

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“…Część badań wskazuje na brak różnic międzypłciowych, a część na wyższe bazowe stężenia katecholamin u mężczyzn (Zouhal i in., 2008). Efekt ten tłumaczy się tym, iż dla mężczyzn świadomość nadchodzących testów stanowi większy stresor niż dla kobiet (Frankenhaeuser, Dunne, Lundberg, 1976). W badaniach wykorzystujących pomiary katecholamin należy zatem zwracać szczególną uwagę na ewentualne różnice międzypłciowe.…”

Section: Katecholaminy W Organizmie Człowiekaunclassified

Poziom katecholamin w ślinie podczas stresu egzaminacyjnego i wysiłku poznawczego

Rudnicki¹,

Rutkowska²,

Wieczorek³

2015

FoliaPsych

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Abstrakt. By ustalić przydatność katecholamin w ślinie do badania stresu, pobrano próbki od 30 studentów przed egzaminem oraz w dniu pozbawionym stresorów. Następnie aby zbadać wpływ wysiłku poznawczego na poziomy katecholamin, przebadano 31 ochotników, którzy uczestniczyli w dwóch spotkaniach poświęconych realizacji różnych testów poznawczych. Za pomocą HPLC-ED zmierzono poziomy noradrenaliny, dopaminy i adrenaliny w ślinie. W grupie przed egzaminem zaobserwowano wyłącznie obniżony poziom dopaminy w porównaniu do dnia nieobciążonego stresorami. W drugiej grupie wysiłek poznawczy wywołał podwyższenie poziomów wszystkich trzech katecholamin. Zważywszy na niejednoznaczne wyniki z dotychczasowych badań wydaje się, iż adrenalina i noradrenalina w ślinie mogą być stosowane jako markery aktywności współczulnej w badaniach psychologicznych.

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Sex differences in sympathetic-adrenal medullary reactions induced by different stressors

Cited by 166 publications

References 16 publications

Sex differences in skilled movement in response to restraint stress and recovery from stress

Sex differences in skilled movement in response to restraint stress and recovery from stress

Transient Cardiac Ballooning—The Syndrome

Poziom katecholamin w ślinie podczas stresu egzaminacyjnego i wysiłku poznawczego

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