PACAP 38 inhibits adiponectin release
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Updated: Jul 15, 2026

Measurement of Basal and Forskolin-stimulated Lipolysis in Inguinal Adipose Fat Pads
Published on: July 21, 2017
Wojciech Bik1, Ewa Wolinska-Witort, Agnieszka Baranowska-Bik
1Neuroendocrinology Department, Medical Centre of Postgraduate Education, Warsaw, Poland. zncmkp@op.pl
Background:
Pituitary adenylate cyclase activating peptide (PACAP 38) is a neuropeptide with anti-inflammatory activity. Vasoactive intestinal peptide (VIP)/PACAP receptors are found in immune cells, endocrine glands and also in adipose tissue. Adiponectin is an adipocyte-derived protein hormone which possesses anti-inflammatory, antidiabetic and antiatherogenic properties. The aim of this study was to examine the influence of PACAP 38 on adiponectin release in basal conditions and during lipopolysaccharide (LPS)-induced acute inflammation.
Methods:
Male Wistar-Kyoto rats were divided into four groups which received intraperitoneal injections of 0.9% NaCl, LPS, PACAP 38 or LPS+PACAP 38, respectively. Serum adiponectin concentrations were measured using an ELISA test.
Results:
LPS administration did not change adiponectin concentration; however, PACAP 38 administered alone decreased serum adiponectin concentration after 2 h (p<0.05) and 4 h (p<0.01). In the group that received LPS+PACAP38, compared with LPS alone, no difference in adiponectin concentration was observed.
Conclusions:
We conclude that PACAP 38 may directly modulate adiponectin secretion by adipocytes in basal conditions.
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