Social stress, autonomic neural activation, and cardiac activity in rats

@article{Sgoifo1999SocialSA,
  title={Social stress, autonomic neural activation, and cardiac activity in rats},
  author={Andrea Sgoifo and Jaap M. Koolhaas and Sietse F. de Boer and Ezio Musso and Donatella Stilli and Bauke Buwalda and Peter Meerlo},
  journal={Neuroscience \& Biobehavioral Reviews},
  year={1999},
  volume={23},
  pages={915-923}
}
Animal models of social stress represent a useful experimental tool to investigate the relationship between psychological stress, autonomic neural activity and cardiovascular disease. This paper summarizes the results obtained in a series of experiments performed on rats and aimed at verifying whether social challenges produce specific modifications in the autonomic neural control of heart rate and whether these changes can be detrimental for cardiac electrical stability. Short-term… 
Individual differences in cardiovascular response to social challenge
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The results show that sleep deprivation produced a tonic increase of heart rate and HPA axis activity and alters the baseline activity of the stress system, but it also alters its response to a subsequent stressor.
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TLDR
The results highlight the existence of a sustained autonomic activation under chronic stress, which was also affected by mice social status and no correlation emerged between the acute and the long-term autonomic responses.
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TLDR
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Defeat stress in rodents: From behavior to molecules
TLDR
The general principle of social defeat stress paradigms are explained, with a strong focus on the resident-intruder model, and the molecular adaptations that are found in animals subjected to defeat stress are provided, with special attention to neural circuits and neuroendocrine signaling.
Social stress in tree shrews Effects on physiology, brain function, and behavior of subordinate individuals
TLDR
Observations made in the tree shrew chronic social stress model are given, which suggest that various physiological parameters indicate an acceleration of the over all metabolic rate in socially stressed tree shrews, and some of these parameters can be renormalized by antidepressants thus supporting the view of theTree shrew social stress paradigm as model for major depression.
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References

SHOWING 1-10 OF 51 REFERENCES
Acute social stress and cardiac electrical activity in rats
This paper summarizes the results of experiments aimed at describing electrocardiographic responses to different acute social stressors in healthy male rats. Electrocardiograms were telemetrically
Incidence of arrhythmias and heart rate variability in wild-type rats exposed to social stress.
Psychological stressors of different natures can induce different shifts of autonomic control on cardiac electrical activity, with either a sympathetic or a parasympathetic prevalence. Arrhythmia
Vulnerability to arrhythmias during social stress in rats with different sympathovagal balance.
TLDR
These two strains of rats might represent a valuable experimental model for studying the mechanisms (cellular/electrophysiological) responsible for the susceptibility to arrhythmias in healthy individuals exposed to stressful situations.
Psychobiology of stress
Stress: Ethological Implications.- Short and long term physiological and neurochemical adaptations to social conflict.- Social behavior in the house mouse: a potential model for preclinical studies
Psychosocial stress can induce chronic hypertension in normotensive strains of rats.
TLDR
Different types of psychosocial stress and different genetics combine to induce a variety of neuroendocrine changes, not all of which necessarily lead to increased blood pressure.
Individual Differences in Plasma Catecholamine and Corticosterone Stress Responses of Wild-Type Rats: Relationship With Aggression
TLDR
Findings in an unselected strain of wild-type rats confirmed that an aggressive/active coping strategy is associated with a high sympathetic-adrenomedullary activation and support the concept of individual differentiation in coping styles as a coherent set of behavioral and neuroendocrine characteristics.
Cardiovascular Neural Regulation Explored in the Frequency Domain
TLDR
It is the opinion that rhythms and neural components always interact, just like flexor and extensor tones or excitatory and inhibitory cardiovascular reflexes, and that it is misleading to separately consider vagal and sympathetic modulations of heart rate.
Social stress in rats and mice.
TLDR
This paper summarizes some of the highlights of the current social stress research in rodents as it was inspired by the work of Jim Henry to suggest the importance of individual differences in coping style in relation to stress vulnerability.
Association between cardiovascular reactivity to stress and hypertension or behavior.
TLDR
Data indicate that CVR to stress is related to behavioral traits, and both hypertension and hyperactivity were associated with reduced baroreceptor sensitivity.
Heart rate variability and its sympatho-vagal modulation.
TLDR
It is reached that only two spectral components of heart rate variability were soundly analysable in a time span of a few hundred cycles-i.e., the time series usually selected to afford an adequate number of events, adequate stationarity and some appraisal of dynamic changes.
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