RFRP-3, the Mammalian Ortholog of GnIH, Is a Novel Modulator Involved in Food Intake and Glucose Homeostasis

RF amide-related peptide 3 (RFRP-3) is a reproductive inhibitor and an endogenous orexigenic neuropeptide that may be involved in energy homeostasis. In this study, we evaluated the effect of acute or chronic RFRP-3 treatment (administered via intraperitoneal injection) on the food intake, meal micr...

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Main Authors: Konglin Huo, Xun Li, Wen Hu, Xingxing Song, Duoni Zhang, Xin Zhang, Xinyi Chen, Jingzhi Yuan, Jianyu Zuo, Xiaoye Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-04-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fendo.2020.00194/full
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author Konglin Huo
Xun Li
Wen Hu
Xingxing Song
Duoni Zhang
Xin Zhang
Xinyi Chen
Jingzhi Yuan
Jianyu Zuo
Xiaoye Wang
author_facet Konglin Huo
Xun Li
Wen Hu
Xingxing Song
Duoni Zhang
Xin Zhang
Xinyi Chen
Jingzhi Yuan
Jianyu Zuo
Xiaoye Wang
author_sort Konglin Huo
collection DOAJ
description RF amide-related peptide 3 (RFRP-3) is a reproductive inhibitor and an endogenous orexigenic neuropeptide that may be involved in energy homeostasis. In this study, we evaluated the effect of acute or chronic RFRP-3 treatment (administered via intraperitoneal injection) on the food intake, meal microstructure and weight of rats, as well as the mechanism through which RFRP-3 is involved in glucose metabolism in the pancreas and glucose disposal tissues of rat in vivo. Our results showed that the intraperitoneal administration of RFRP-3 to rats resulted in marked body mass increased, hyperphagia, hyperlipidemia, hyperglycemia, glucose intolerance, hypoinsulinism, hyperglucagon, and insulin resistance, as well as significant increases in the size of pancreatic islets and the inflammatory reaction. Thus, we strongly assert that RFRP-3 as a novel neuroendocrine regulator involved in blood glucose homeostasis.
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spelling doaj.art-497427065d0d420ba61ff11a62d4a7062022-12-21T22:41:45ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922020-04-011110.3389/fendo.2020.00194506807RFRP-3, the Mammalian Ortholog of GnIH, Is a Novel Modulator Involved in Food Intake and Glucose HomeostasisKonglin HuoXun LiWen HuXingxing SongDuoni ZhangXin ZhangXinyi ChenJingzhi YuanJianyu ZuoXiaoye WangRF amide-related peptide 3 (RFRP-3) is a reproductive inhibitor and an endogenous orexigenic neuropeptide that may be involved in energy homeostasis. In this study, we evaluated the effect of acute or chronic RFRP-3 treatment (administered via intraperitoneal injection) on the food intake, meal microstructure and weight of rats, as well as the mechanism through which RFRP-3 is involved in glucose metabolism in the pancreas and glucose disposal tissues of rat in vivo. Our results showed that the intraperitoneal administration of RFRP-3 to rats resulted in marked body mass increased, hyperphagia, hyperlipidemia, hyperglycemia, glucose intolerance, hypoinsulinism, hyperglucagon, and insulin resistance, as well as significant increases in the size of pancreatic islets and the inflammatory reaction. Thus, we strongly assert that RFRP-3 as a novel neuroendocrine regulator involved in blood glucose homeostasis.https://www.frontiersin.org/article/10.3389/fendo.2020.00194/fullRFamide-related peptide-3 (RFRP-3)food intakeinsulinglucagoninsulin resistanceglucose metabolism
spellingShingle Konglin Huo
Xun Li
Wen Hu
Xingxing Song
Duoni Zhang
Xin Zhang
Xinyi Chen
Jingzhi Yuan
Jianyu Zuo
Xiaoye Wang
RFRP-3, the Mammalian Ortholog of GnIH, Is a Novel Modulator Involved in Food Intake and Glucose Homeostasis
Frontiers in Endocrinology
RFamide-related peptide-3 (RFRP-3)
food intake
insulin
glucagon
insulin resistance
glucose metabolism
title RFRP-3, the Mammalian Ortholog of GnIH, Is a Novel Modulator Involved in Food Intake and Glucose Homeostasis
title_full RFRP-3, the Mammalian Ortholog of GnIH, Is a Novel Modulator Involved in Food Intake and Glucose Homeostasis
title_fullStr RFRP-3, the Mammalian Ortholog of GnIH, Is a Novel Modulator Involved in Food Intake and Glucose Homeostasis
title_full_unstemmed RFRP-3, the Mammalian Ortholog of GnIH, Is a Novel Modulator Involved in Food Intake and Glucose Homeostasis
title_short RFRP-3, the Mammalian Ortholog of GnIH, Is a Novel Modulator Involved in Food Intake and Glucose Homeostasis
title_sort rfrp 3 the mammalian ortholog of gnih is a novel modulator involved in food intake and glucose homeostasis
topic RFamide-related peptide-3 (RFRP-3)
food intake
insulin
glucagon
insulin resistance
glucose metabolism
url https://www.frontiersin.org/article/10.3389/fendo.2020.00194/full
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