Abstract
Inherited stress-induced arterial hypertension (ISIAH) rats are characterized by increased stress reactivity of the hypothalamic-pituitary-adrenal and sympathoadrenal systems. The genetic basis of increased susceptibility to stress was studied in hypertensive ISIAH rats. Adrenal transcriptomes were sequenced in hypertensive ISIAH and normotensive WAG rats, and nine differentially expressed genes (DEGs) were found in the X-chromosome locus that was previously associated with mild emotional stress-induced increases in blood pressure and plasma corticosterone and an increased adrenal weight in ISIAH rats. An analysis of the functions performed by DEG-encoded proteins suggested the Sms (spermine synthase) gene to be the most likely candidate gene in the X-chromosome locus associated with an elevated stress susceptibility in ISIAH rats.
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