Regional differences of cFos immunoreactive cells in the preoptic areas in hypothalamus associated with heat and cold responses in mice

Yuki Uchida, Keisuke Onishi, Ken Tokizawa, Kei Nagashima

    Research output: Contribution to journalArticle

    Abstract

    cFos expression in the preoptic area (PO), which is thermoregulatory center increased by both heat and cold exposures; however, the regional difference is unknown yet. We aimed to determine if cFos expression in the PO was regionally different between heat and cold exposures. Mice were exposed to 27, 10, or 38 °C for 90 min, and body temperature (Tb) was measured. cFos-immunoreactive (cFos-IR) cells in the PO were counted by separating the PO into the ventral and dorsal parts in the rostral (bregma 0.38 mm), central (−0.10 mm), and caudal (−0.46 mm) planes. Tb at 10 °C remained unchanged; however, it increased at 38 °C. Counts of cFos-IR cells in all areas were greater at 38 °C than at 27 °C. In the dorsal and ventral parts of the central and the dorsal part of caudal PO, counts of cFos-IR cells were greater at 10 °C than at 27 °C. In conclusion, the areas of increased cFos expression in the PO in the heat were different that in the cold in mice.

    Original languageEnglish
    Pages (from-to)130-134
    Number of pages5
    JournalNeuroscience Letters
    Volume665
    DOIs
    Publication statusPublished - 2018 Feb 5

    Keywords

    • cFos
    • Cold
    • Heat
    • Hypothalamus
    • Preoptic area

    ASJC Scopus subject areas

    • Neuroscience(all)

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