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Vasodilatation on preoptic heating in capsaicin-treated rats

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Summary

Rats treated with 50 or 300 mg/kg capsaicin were less tolerant of a warm environment than controls. However, preoptic thermoregulatory impairment, as shown by a decreased vasodilatation on preoptic heating, was not found for the lower dose, suggesting a deficiency in extrahypothalamic thermoreceptive structures.

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Obal, F., Jancso, G., Jancso-Gabor, A. et al. Vasodilatation on preoptic heating in capsaicin-treated rats. Experientia 39, 221–223 (1983). https://doi.org/10.1007/BF01958912

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