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  • Open Daily: 10am - 10pm
    Alley-side Pickup: 10am - 7pm

    3038 Hennepin Ave Minneapolis, MN
    612-822-4611

Open Daily: 10am - 10pm | Alley-side Pickup: 10am - 7pm
3038 Hennepin Ave Minneapolis, MN
612-822-4611
UFP-101, a NOP antagonist: effects in a murine model of anxiety

UFP-101, a NOP antagonist: effects in a murine model of anxiety

Duzzioni, Marcelo
Gavioli, Elaine C.
de Lima, Thereza C. M.

Paperback

Medical Reference

ISBN10: 6208796520
ISBN13: 9786208796525
Publisher: Our Knowledge Publishing
Published: Mar 29 2025
Pages: 152
Weight: 0.47
Height: 0.35 Width: 6.00 Depth: 9.00
Language: English
Central administration of [Nphe1, Arg14, Lys15]N/OFQ-NH2 (UFP-101), an antagonist of the NOP receptor, showed an anxiolytic effect in rats submitted to the elevated T maze test (LTE). Prior treatment with a peptidase inhibitor (bestatin) and another serotonin synthesis inhibitor (PCPA) blocked this response, suggesting that a C-terminal fragment and the serotonergic system are involved in the anxiolytic-like effect of UFP-101 in the LTE. Administration of UFP-101 into the dorsal raphe nucleus also showed an anxiolytic-like effect on the LTE. In the sphere hiding test (SST), central administration of UFP-101 also showed an anxiolytic effect. However, this effect was resistant to blockade by naloxone, a non-selective opioid receptor antagonist. Central administration of UFP-101 reduced the firing rate of noradrenergic neurons in the locus ceruleus (LC), but this effect was not blocked by intravenous administration of naloxone (no effect per se), indicating that modulation of the electrical activity of LC noradrenergic neurons does not appear to be one of the mechanisms responsible for the anxiolytic-like effect of UFP-101.

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