Enhancing resilience to chronic ammonia stress in crucian carp (Carassius carassius) through dietary gamma-aminobutyric acid (GABA) supplementation: Effects on growth performance, immune function, hepatotoxicity, and apoptosis

Bibliographic Details
Title: Enhancing resilience to chronic ammonia stress in crucian carp (Carassius carassius) through dietary gamma-aminobutyric acid (GABA) supplementation: Effects on growth performance, immune function, hepatotoxicity, and apoptosis
Authors: Zihao Yan, Bingli Liu, Jia Liu, Zhengyao Guo, Yihan Kou, Wei Lu, Jia Sun, Yuehong Li
Source: Aquaculture Reports, Vol 37, Iss , Pp 102259- (2024)
Publisher Information: Elsevier, 2024.
Publication Year: 2024
Collection: LCC:Aquaculture. Fisheries. Angling
Subject Terms: Chronic ammonia stress, Carassius auratus, Gamma-aminobutyric acid (GABA), Hepatotoxicity, Aquaculture. Fisheries. Angling, SH1-691
More Details: This study investigated the potential of gamma-aminobutyric acid (GABA), a potent bioactive compound and inhibitory neurotransmitter, in mitigating chronic ammonia stress-induced liver toxicity in crucian carp (Carassius carassius). GABA is known for its role in alleviating stress responses and enhancing antioxidant defense. In this study, experimental fishes (weighing 20.51 ± 0.39 g) underwent 56 days of chronic ammonia stress (10 ± 0.053 mg/L), with or without supplemented with GABA (100 mg/kg) in the diet. Serum ammonia (152.14 ± 2.94, CK-95.82 ± 0.81 μmol/L), serum MDA content (3.41 ± 1.24, CK-1.25 ± 0.08 μmol/L), and liver MDA content (1.98 ± 1.72, CK-0.84 ± 0.02 μmol/g prot) were significantly increased in the ammonia exposure group compared with the CK group. GABA supplementation effectively alleviates the detrimental effects of chronic ammonia stress, specifically on growth parameters, serum ammonia levels, and malondialdehyde content. GABA supplementation elevated the expressions of antioxidant genes (zu/cu sod, cat), promoted the expressions of nrf2, and reduced the expression of keap1. Moreover, GABA significantly alleviated liver injury and reduced gene expression of three types of transmembrane proteins (perk, ire1, and atf6). GABA further regulated the expression of downstream apoptotic target genes (upregulation of bcl2; downregulation of bax, caspase3, and caspase9) through endoplasmic reticulum stress (ERS) pathways. This finding indicated the multifaceted benefits of GABA in combating chronic ammonia stress in crucian carp, providing valuable insights for the development of sustainable aquaculture practices.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2352-5134
Relation: http://www.sciencedirect.com/science/article/pii/S2352513424003478; https://doaj.org/toc/2352-5134
DOI: 10.1016/j.aqrep.2024.102259
Access URL: https://doaj.org/article/c88eef865a4242ae9db85cbaefdef0a8
Accession Number: edsdoj.88eef865a4242ae9db85cbaefdef0a8
Database: Directory of Open Access Journals
More Details
ISSN:23525134
DOI:10.1016/j.aqrep.2024.102259
Published in:Aquaculture Reports
Language:English