Abstract:
:Male wild house mice, selected for short (SAL) and long (LAL) attack latency, show distinctly different behavioral strategies in coping with environmental challenges. In this study, we tested the hypothesis that this difference in coping style is associated with a differential stress responsiveness of the hypothalamic-pituitary-adrenal (HPA) system. SAL rather than LAL mice showed a clear fluctuation in circulating corticosterone concentrations around the circadian peak with significantly higher levels in the late light phase. LAL mice showed lower basal ACTH levels and higher thymic and spleen weights compared to SAL. Under basal conditions, glucocorticoid receptor (GR) and mineralocorticoid receptor (MR) mRNA in the hippocampus and corticotropin-releasing hormone (CRH) mRNA in the paraventricular nucleus of the hypothalamus were not different between the two lines. Forced swimming for 5 min induced high immobility behavior in LAL mice which was associated with an enhanced and prolonged corticosterone response as compared to SAL, while absolute ACTH levels did not differ. In addition, LAL mice showed an increase in hippocampal MR mRNA (but not GR) and hypothalamic CRH mRNA at 24 h after forced swimming. In conclusion, a genetic trait in coping style of wild house mice is associated with an idiosyncratic pattern of HPA activity, and greater responsiveness of physiological and molecular stress markers in LAL mice. In view of the profound differences in behavioral traits and stress system reactivity, these mouse lines genetically selected for attack latency present an interesting model for studying the mechanism underlying individual variation in susceptibility to stress-related psychopathology.
journal_name
Horm Behavjournal_title
Hormones and behaviorauthors
Veenema AH,Meijer OC,de Kloet ER,Koolhaas JM,Bohus BGdoi
10.1016/s0018-506x(02)00013-2keywords:
subject
Has Abstractpub_date
2003-01-01 00:00:00pages
197-204issue
1eissn
0018-506Xissn
1095-6867pii
S0018506X02000132journal_volume
43pub_type
杂志文章abstract::In rats, progesterone (P) facilitates sexual receptivity by interacting with intracellular progestin receptors in the ventromedial hypothalamus (VMH). This experiment concerns whether P can also facilitate receptivity in rats by acting extragenomically within the ventral tegmental area (VTA). Ovariectomized rats (n = ...
journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1006/hbeh.2001.1661
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
pub_type: 杂志文章
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journal_title:Hormones and behavior
pub_type: 杂志文章,评审
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journal_title:Hormones and behavior
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journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2011.10.012
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abstract::Findings from previous studies of hormone-mediated behavior in women suggest that raised progesterone level increases the probability of behaviors that will reduce the likelihood of disruption to fetal development during pregnancy (e.g. increased avoidance of sources of contagion). Here, we tested women's (N=52) sensi...
journal_title:Hormones and behavior
pub_type: 杂志文章
doi:10.1016/j.yhbeh.2006.10.002
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