Dietary Niacin Supplementation Suppressed Hepatic Lipid Accumulation in Rabbits

An experiment was conducted to investigate the effect of niacin supplementation on hepatic lipid metabolism in rabbits. Rex Rabbits (90 d, n = 32) were allocated to two equal treatment groups: Fed basal diet (control) or fed basal diet with additional 200 mg/kg niacin supplementation (niacin). The r...

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Main Authors: Lei Liu, Chunyan Li, Chunyan Fu, Fuchang Li
Format: Article
Language:English
Published: Asian-Australasian Association of Animal Production Societies 2016-12-01
Series:Asian-Australasian Journal of Animal Sciences
Subjects:
Online Access:http://www.ajas.info/upload/pdf/ajas-29-12-1748.pdf
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author Lei Liu
Chunyan Li
Chunyan Fu
Fuchang Li
author_facet Lei Liu
Chunyan Li
Chunyan Fu
Fuchang Li
author_sort Lei Liu
collection DOAJ
description An experiment was conducted to investigate the effect of niacin supplementation on hepatic lipid metabolism in rabbits. Rex Rabbits (90 d, n = 32) were allocated to two equal treatment groups: Fed basal diet (control) or fed basal diet with additional 200 mg/kg niacin supplementation (niacin). The results show that niacin significantly increased the levels of plasma adiponectin, hepatic apoprotein B and hepatic leptin receptors mRNA (p<0.05), but significantly decreased the hepatic fatty acid synthase activity and adiponectin receptor 2, insulin receptor and acetyl-CoA carboxylase mRNA levels (p<0.05). Plasma insulin had a decreasing tendency in the niacin treatment group compared with control (p = 0.067). Plasma very low density lipoproteins, leptin levels and the hepatic adiponectin receptor 1 and carnitine palmitoyl transferase 1 genes expression were not significantly altered with niacin addition to the diet (p>0.05). However, niacin treatment significantly inhibited the hepatocytes lipid accumulation compared with the control group (p<0.05). In conclusion, niacin treatment can decrease hepatic fatty acids synthesis, but does not alter fatty acids oxidation and triacylglycerol export. And this whole process attenuates lipid accumulation in liver. Besides, the hormones of insulin, leptin and adiponectin are associated with the regulation of niacin in hepatic lipid metabolism in rabbits.
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spelling doaj.art-8e579bb0a8d94469876bc6085bf6d8822022-12-22T02:20:25ZengAsian-Australasian Association of Animal Production SocietiesAsian-Australasian Journal of Animal Sciences1011-23671976-55172016-12-0129121748175510.5713/ajas.15.082423518Dietary Niacin Supplementation Suppressed Hepatic Lipid Accumulation in RabbitsLei Liu0Chunyan Li1Chunyan Fu2Fuchang Li3 Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, China Department of Animal Science, Shandong Agricultural University, Taian, Shandong 271018, ChinaAn experiment was conducted to investigate the effect of niacin supplementation on hepatic lipid metabolism in rabbits. Rex Rabbits (90 d, n = 32) were allocated to two equal treatment groups: Fed basal diet (control) or fed basal diet with additional 200 mg/kg niacin supplementation (niacin). The results show that niacin significantly increased the levels of plasma adiponectin, hepatic apoprotein B and hepatic leptin receptors mRNA (p<0.05), but significantly decreased the hepatic fatty acid synthase activity and adiponectin receptor 2, insulin receptor and acetyl-CoA carboxylase mRNA levels (p<0.05). Plasma insulin had a decreasing tendency in the niacin treatment group compared with control (p = 0.067). Plasma very low density lipoproteins, leptin levels and the hepatic adiponectin receptor 1 and carnitine palmitoyl transferase 1 genes expression were not significantly altered with niacin addition to the diet (p>0.05). However, niacin treatment significantly inhibited the hepatocytes lipid accumulation compared with the control group (p<0.05). In conclusion, niacin treatment can decrease hepatic fatty acids synthesis, but does not alter fatty acids oxidation and triacylglycerol export. And this whole process attenuates lipid accumulation in liver. Besides, the hormones of insulin, leptin and adiponectin are associated with the regulation of niacin in hepatic lipid metabolism in rabbits.http://www.ajas.info/upload/pdf/ajas-29-12-1748.pdfNiacinLiverLipid MetabolismRabbits
spellingShingle Lei Liu
Chunyan Li
Chunyan Fu
Fuchang Li
Dietary Niacin Supplementation Suppressed Hepatic Lipid Accumulation in Rabbits
Asian-Australasian Journal of Animal Sciences
Niacin
Liver
Lipid Metabolism
Rabbits
title Dietary Niacin Supplementation Suppressed Hepatic Lipid Accumulation in Rabbits
title_full Dietary Niacin Supplementation Suppressed Hepatic Lipid Accumulation in Rabbits
title_fullStr Dietary Niacin Supplementation Suppressed Hepatic Lipid Accumulation in Rabbits
title_full_unstemmed Dietary Niacin Supplementation Suppressed Hepatic Lipid Accumulation in Rabbits
title_short Dietary Niacin Supplementation Suppressed Hepatic Lipid Accumulation in Rabbits
title_sort dietary niacin supplementation suppressed hepatic lipid accumulation in rabbits
topic Niacin
Liver
Lipid Metabolism
Rabbits
url http://www.ajas.info/upload/pdf/ajas-29-12-1748.pdf
work_keys_str_mv AT leiliu dietaryniacinsupplementationsuppressedhepaticlipidaccumulationinrabbits
AT chunyanli dietaryniacinsupplementationsuppressedhepaticlipidaccumulationinrabbits
AT chunyanfu dietaryniacinsupplementationsuppressedhepaticlipidaccumulationinrabbits
AT fuchangli dietaryniacinsupplementationsuppressedhepaticlipidaccumulationinrabbits