Anticatabolic activity of alpha-ketoglutaric acid in growing rats

This study evaluated the anti-catabolic effect of α-ketoglutaric acid (AKG) in rats. Thirty Sprague Dowley male rats were divided into 3 groups of 10 animals each and fed a<em>d libitum</em> with protein-free diet (PFD) supplemented with 0, 3, and 6 g/kg feed of AKG for 14 consecutive da...

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Main Authors: Lucia Fiorentini, Samantha Sigolo, Mauro Morlacchini, Aldo Prandini
Format: Article
Language:English
Published: Taylor & Francis Group 2012-07-01
Series:Italian Journal of Animal Science
Subjects:
Online Access:http://www.aspajournal.it/index.php/ijas/article/view/2514
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author Lucia Fiorentini
Samantha Sigolo
Mauro Morlacchini
Aldo Prandini
author_facet Lucia Fiorentini
Samantha Sigolo
Mauro Morlacchini
Aldo Prandini
author_sort Lucia Fiorentini
collection DOAJ
description This study evaluated the anti-catabolic effect of α-ketoglutaric acid (AKG) in rats. Thirty Sprague Dowley male rats were divided into 3 groups of 10 animals each and fed a<em>d libitum</em> with protein-free diet (PFD) supplemented with 0, 3, and 6 g/kg feed of AKG for 14 consecutive days. The AKG administration had no effect on the growth performance of rats in the global trial period (0-14 d). After 7 d of excreta collection, the losses of endogenous nitrogen (N), both urinary and total, linearly reduced (P<0.05) following the administration of AKG, ranging from 35.00 mg/d to 28.00 mg/d, and from 45.28 mg/d to 36.36 mg/d, respectively. The villi and microvilli heights were lower when animals received 3 g/kg of AKG respecting to other tested AKG levels. Indeed, enterocytes length linearly increased (P<0.05) as the level of AKG increased in the diet by 25.0% (3 g/kg) and 49.0% (6 g/kg). The AKG levels quadratically influenced (P<0.05) the essential amino acids (EAA) concentrations in the blood, being EAA lower for animals treated with 6 g/kg of AKG (-21.6%) compared to the animals fed the control PFD and the PFD with 3 g/kg of AKG. In conclusion, AKG was effective in reducing catabolism and EAA depletion.
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spelling doaj.art-bd501b59b23545c3b6ca67bb1bb030312022-12-22T02:57:57ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2012-07-01113e52e5210.4081/ijas.2012.e52Anticatabolic activity of alpha-ketoglutaric acid in growing ratsLucia FiorentiniSamantha SigoloMauro MorlacchiniAldo PrandiniThis study evaluated the anti-catabolic effect of α-ketoglutaric acid (AKG) in rats. Thirty Sprague Dowley male rats were divided into 3 groups of 10 animals each and fed a<em>d libitum</em> with protein-free diet (PFD) supplemented with 0, 3, and 6 g/kg feed of AKG for 14 consecutive days. The AKG administration had no effect on the growth performance of rats in the global trial period (0-14 d). After 7 d of excreta collection, the losses of endogenous nitrogen (N), both urinary and total, linearly reduced (P<0.05) following the administration of AKG, ranging from 35.00 mg/d to 28.00 mg/d, and from 45.28 mg/d to 36.36 mg/d, respectively. The villi and microvilli heights were lower when animals received 3 g/kg of AKG respecting to other tested AKG levels. Indeed, enterocytes length linearly increased (P<0.05) as the level of AKG increased in the diet by 25.0% (3 g/kg) and 49.0% (6 g/kg). The AKG levels quadratically influenced (P<0.05) the essential amino acids (EAA) concentrations in the blood, being EAA lower for animals treated with 6 g/kg of AKG (-21.6%) compared to the animals fed the control PFD and the PFD with 3 g/kg of AKG. In conclusion, AKG was effective in reducing catabolism and EAA depletion.http://www.aspajournal.it/index.php/ijas/article/view/2514Rat, Alpha-ketoglutaric acid, Nitrogen balance, Free amino acids, Intestinal morphology.
spellingShingle Lucia Fiorentini
Samantha Sigolo
Mauro Morlacchini
Aldo Prandini
Anticatabolic activity of alpha-ketoglutaric acid in growing rats
Italian Journal of Animal Science
Rat, Alpha-ketoglutaric acid, Nitrogen balance, Free amino acids, Intestinal morphology.
title Anticatabolic activity of alpha-ketoglutaric acid in growing rats
title_full Anticatabolic activity of alpha-ketoglutaric acid in growing rats
title_fullStr Anticatabolic activity of alpha-ketoglutaric acid in growing rats
title_full_unstemmed Anticatabolic activity of alpha-ketoglutaric acid in growing rats
title_short Anticatabolic activity of alpha-ketoglutaric acid in growing rats
title_sort anticatabolic activity of alpha ketoglutaric acid in growing rats
topic Rat, Alpha-ketoglutaric acid, Nitrogen balance, Free amino acids, Intestinal morphology.
url http://www.aspajournal.it/index.php/ijas/article/view/2514
work_keys_str_mv AT luciafiorentini anticatabolicactivityofalphaketoglutaricacidingrowingrats
AT samanthasigolo anticatabolicactivityofalphaketoglutaricacidingrowingrats
AT mauromorlacchini anticatabolicactivityofalphaketoglutaricacidingrowingrats
AT aldoprandini anticatabolicactivityofalphaketoglutaricacidingrowingrats