» Articles » PMID: 29053815

Insulin Immuno-neutralization Decreases Food Intake in Chickens Without Altering Hypothalamic Transcripts Involved in Food Intake and Metabolism

Overview
Journal Poult Sci
Publisher Elsevier
Date 2017 Oct 21
PMID 29053815
Citations 2
Authors
Affiliations
Soon will be listed here.
Abstract

In mammals, insulin regulates blood glucose levels and plays a key regulatory role in appetite via the hypothalamus. In contrast, chickens are characterized by atypical glucose homeostasis, with relatively high blood glucose levels, reduced glucose sensitivity of pancreatic beta cells, and large resistance to exogenous insulin. The aim of the present study was to investigate in chickens the effects of 5 h fasting and 5 h insulin immuno-neutralization on hypothalamic mRNA levels of 23 genes associated with food intake, energy balance, and glucose metabolism. We observed that insulin immune-neutralization by administration of anti-porcine insulin guinea pig serum (AI) significantly decreased food intake and increased plasma glucose levels in chickens, while 5 h fasting produced a limited and non-significant reduction in plasma glucose. In addition, 5 h fasting increased levels of NPY, TAS1R1, DIO2, LEPR, GLUT1, GLUT3, GLUT8, and GCK mRNA. In contrast, AI had no impact on the levels of any selected mRNA. Therefore, our results demonstrate that in chickens, food intake inhibition or satiety mechanisms induced by insulin immuno-neutralization do not rely on hypothalamic abundance of the 23 transcripts analyzed. The hypothalamic transcripts that were increased in the fasted group are likely components of a mechanism of adaptation to fasting in chickens.

Citing Articles

A study of solely used phytase or in combination with multi-carbohydrase on growth performance along with tibia mineralization, and carcass traits in broilers fed nutrient-deficient diets.

Cruz B, Yu M, Oketch E, Nawarathne S, Chathuranga N, Maniraguha V J Anim Sci. 2024; 102.

PMID: 39367522 PMC: 11503210. DOI: 10.1093/jas/skae299.


Unrestricted Feed Intake Induces β-Cell Death and Impairs Insulin Secretion in Broiler Breeder Hens.

Huang Y, Chang L, Chen C, Chen Y, Walzem R, Chen S Animals (Basel). 2020; 10(11).

PMID: 33114772 PMC: 7693285. DOI: 10.3390/ani10111969.

References
1.
Anderson D, HAZELWOOD R . Chicken cerebrospinal fluid: normal composition and response to insulin administration. J Physiol. 1969; 202(1):83-95. PMC: 1351466. DOI: 10.1113/jphysiol.1969.sp008796. View

2.
Byerly M, Simon J, Cogburn L, Le Bihan-Duval E, Duclos M, Aggrey S . Transcriptional profiling of hypothalamus during development of adiposity in genetically selected fat and lean chickens. Physiol Genomics. 2010; 42(2):157-67. PMC: 3032285. DOI: 10.1152/physiolgenomics.00029.2010. View

3.
Carayannopoulos M, Chi M, Cui Y, Pingsterhaus J, McKnight R, Mueckler M . GLUT8 is a glucose transporter responsible for insulin-stimulated glucose uptake in the blastocyst. Proc Natl Acad Sci U S A. 2000; 97(13):7313-8. PMC: 16542. DOI: 10.1073/pnas.97.13.7313. View

4.
Ren X, Zhou L, Terwilliger R, Newton S, de Araujo I . Sweet taste signaling functions as a hypothalamic glucose sensor. Front Integr Neurosci. 2009; 3:12. PMC: 2706652. DOI: 10.3389/neuro.07.012.2009. View

5.
Kono T, Nishida M, Nishiki Y, Seki Y, Sato K, Akiba Y . Characterisation of glucose transporter (GLUT) gene expression in broiler chickens. Br Poult Sci. 2005; 46(4):510-5. DOI: 10.1080/00071660500181289. View