Summary
1. The neuropeptide corticotropin-releasing hormone (CRH) is the main mediator of the neuroendocrine and behavioral response to stress. End-capped phosphorothioate antisense and sense oligodeoxynucleotides (ODN) corresponding to the start coding region of rat CRH mRNA were infused intracerebroventricularly (30 µg/3 μl per injection) three times at 12 hr intervals. Six hours after the last injection rats were subjected to social defeat stress and subsequently tested on the elevated plus maze.
2. Socially defeated CRH antisense-treated rats displayed markedly reduced anxiety-related behavior, as they spent significantly more time in the open arms of the plus maze compared to sense ODN- and vehicle-treated animals.
3. In controls, social defeat evoked a stress-induced elevation of CRH mRNA and CRH in the hypothalamus and a significant increase in plasma corticotropin (ACTH) levels. These parameters were attenuated in antisense-injected rats.
4. Our results suggest that CRH antisense treatment is effectively suppressing the neuroendocrine and behavioral effects of social defeat.
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Skutella, T., Montkowski, A., Stöhr, T. et al. Corticotropin-releasing hormone (CRH) antisense oligodeoxynucleotide treatment attenuates social defeat-induced anxiety in rats. Cell Mol Neurobiol 14, 579–588 (1994). https://doi.org/10.1007/BF02088839
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DOI: https://doi.org/10.1007/BF02088839