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Biomedical Sciences Faculty Research and Publications

2020

Neuropeptides

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Full-Text Articles in Medicine and Health Sciences

Reduced Vip Expression Affects Circadian Clock Function In Vip-Ires-Cre Mice (Jax 010908), Deborah A.M. Joye, Kayla Rohr, Danielle Keller, Thomas Inda, Adam Telega, Harshida Pancholi, Vania Carmonia-Alcocer, Jennifer A. Evans Aug 2020

Reduced Vip Expression Affects Circadian Clock Function In Vip-Ires-Cre Mice (Jax 010908), Deborah A.M. Joye, Kayla Rohr, Danielle Keller, Thomas Inda, Adam Telega, Harshida Pancholi, Vania Carmonia-Alcocer, Jennifer A. Evans

Biomedical Sciences Faculty Research and Publications

Circadian rhythms are programmed by the suprachiasmatic nucleus (SCN), which relies on neuropeptide signaling to maintain daily timekeeping. Vasoactive intestinal polypeptide (VIP) is critical for SCN function, but the precise role of VIP neurons in SCN circuits is not fully established. To interrogate their contribution to SCN circuits, VIP neurons can be manipulated specifically using the DNA-editing enzyme Cre recombinase. Although the Cre transgene is assumed to be inert by itself, we find that VIP expression is reduced in both heterozygous and homozygous adult VIP-IRES-Cre mice (JAX 010908). Compared with wild-type mice, homozygous VIP-Cre mice display faster reentrainment and shorter …