Article
Biochemistry & Molecular Biology
Tong Xing, Xinglian Xu, Lin Zhang, Feng Gao
Summary: The study demonstrated that acute L-glutamine (Gln) supplementation in broilers exposed to pre-slaughter transport can enhance the expression of HSP70 in the pectoralis major (PM) muscles, leading to improvements in meat quality by increasing muscle pH and water-holding capacity, reducing muscle fiber shrinkage, increasing ATP content, decreasing glycolytic enzyme activities, regulating AMP-activated protein kinase phosphorylation levels, and enhancing total superoxide dismutase and total antioxidant capability while decreasing reactive oxygen species, malonaldehyde, and carbonyl levels in the PM of transported broilers.
Article
Environmental Sciences
Yeyu Chen, Xiaoyun Wu, Jiansheng Lai, Ya Liu, Mingjiang Song, Feiyang Li, Quan Gong
Summary: Temperature fluctuations caused by climate change and global warming threaten various species, especially fish. Understanding high-temperature tolerance in fish can help develop effective strategies for coping with global warming. This study investigated the effects of high temperature on Acipenser dabryanus, an ancient species of the Yangtze River, at different levels. The results showed damage to the intestine and liver tissues, increased cortisol levels and oxidative stress markers, and changes in gene and metabolite expression. The study provides insights into the heat stress response mechanisms in A. dabryanus, contributing to improved fish cultivation in response to global warming.
ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
(2023)
Article
Biochemistry & Molecular Biology
Tong Wu, Yanan Sheng, Yu Tian, Changyuan Wang
Summary: The study found that vitexin can alleviate heat stress and reduce cell apoptosis. Vitexin protects cells from heat stress-induced apoptosis by inhibiting intracellular reactive oxygen species levels and modulating the expression of heat shock proteins. This study provides a theoretical basis for the prevention and amelioration of heat stress using vitexin.
Article
Fisheries
Huihui Qin, Zhongying Long, Zhangfan Huang, Jianrong Ma, Lumin Kong, Yi Lin, Hao Lin, Sishun Zhou, Zhongbao Li
Summary: The metabolism of fish is affected by temperature, and fish of different sizes have different tolerances to temperature. This experiment aimed to compare the physiological, biochemical, and molecular changes in two different sizes of spotted seabass under acute heat stress. The results showed that large spotted seabass had higher levels of oxidative stress and more severe liver damage, resulting in higher mortality rates. In contrast, small spotted seabass had higher levels of heat shock proteins (HSPs) expression and lower mortality rates. Thus, large spotted seabass has lower levels of HSPs expression, causing their response to heat stress to be elevated, while smaller fish size possibly regulates HSPs expression in a more active extent to resist heat stress.
Article
Fisheries
Yeyu Chen, Xiaoyun Wu, Pengcheng Li, Ya Liu, Mingjiang Song, Feiyang Li, Jun Ou, Jiansheng Lai
Summary: This study conducted an integrated analysis of the transcriptome and metabolism of Triplophysa siluroides under heat stress conditions. The results revealed that heat stress strongly upregulated genes in the Hsp family and affected specific pathways, while also causing differential abundance of metabolites. The combined analysis of transcriptome and metabolism results showed enhanced ubiquitin-dependent proteolysis and purine metabolism pathways under heat stress conditions to protect cells from damage.
FISH & SHELLFISH IMMUNOLOGY
(2023)
Article
Agriculture, Dairy & Animal Science
Rixin Gong, Lu Xing, Jingwen Yin, Yuqing Ding, Xiaotao Liu, Jun Bao, Jianhong Li
Summary: Intermittent mild cold stimulation improves energy metabolism and stress resistance in the livers of broilers, aiding in their adaptation to low-temperature environments. Appropriate cold stimulation enhances stress resistance and mitigates the negative impact of cold environments on broilers.
JOURNAL OF ANIMAL SCIENCE
(2023)
Article
Fisheries
Anna Carolina Resende, Diego Mauro Carneiro Pereira, Ieda Cristina Schleger, Maria Rosa Dmengeon Pedreiro de Souza, Ananda Karla Alvez Neundorf, Silvia Romao, Tatiana Herrerias, Lucelia Donatti
Summary: This study investigated the antioxidant defence system and energy metabolism in Brazilian freshwater fish exposed to heat stress. The results showed stress indicators in all tested tissues, with different biomarker responses in different organs.
JOURNAL OF FISH BIOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Yan Liu, Shenggang Yin, Jiayong Tang, Yonggang Liu, Gang Jia, Guangmang Liu, Gang Tian, Xiaoling Chen, Jingyi Cai, Bo Kang, Hua Zhao
Summary: Dietary supplementation of organic selenium can alleviate the skeletal muscle damage caused by chronic heat stress in growing pigs, improve antioxidant capacity, and enhance meat quality.
Article
Agriculture, Dairy & Animal Science
Bolin Zhang, Huilei Sun, Zewei Sun, Ning Liu, Rujie Liu, Qingzhen Zhong
Summary: Glutamine (Gln) addition protects porcine epithelial cells (IPEC-J2) from apoptosis and damage to the mucosal barrier induced by heat stress (HS), potentially through the mitochondrial apoptosis pathway mediated by heat shock protein 70 (HSP70). These findings provide a possible theoretical basis for mitigating HS-induced damage to porcine intestinal epithelium and offer insights for developing nutritional strategies to alleviate the negative effects of HS on farmed animals.
JOURNAL OF ANIMAL SCIENCE
(2023)
Article
Chemistry, Applied
Yichao Li, Bing Fu, Junming Zhang, Guangjun Wang, Wangbao Gong, Jingjing Tian, Hongyan Li, Kai Zhang, Yun Xia, Zhifei Li, Jun Xie, Gen Kaneko, Ermeng Yu
Summary: The study investigated the effects of chronic heat stress (HS) on the chemical composition, oxidative stability, muscle metabolism, and meat quality of Nile tilapia. Chronic HS (32 degrees C) decreased growth performance, lipid and protein content, and increased reactive oxygen species (ROS) levels. HS also led to increased lipid and protein oxidation, water and cooking loss, and decreased fragmentation index and pH in the meat. Metabolomic analysis revealed alterations in amino acid, lipid, and nucleotide metabolism. These findings highlight the detrimental effects of HS on oxidative stability, meat quality, flavor, and nutrition.
Article
Biochemical Research Methods
J. M. Malheiros, C. E. Enriquez-Valencia, C. P. Braga, J. C. S. Vieira, D. S. Vieira, G. L. Pereira, R. A. Curi, O. R. Machado Neto, H. N. Oliveira, P. M. Padilha, L. A. L. Chardulo
Summary: This study investigated the association between meat tenderness and soluble muscle proteins in Nellore bulls, finding that meat tenderness is influenced by the modulation and expression of specific proteins involved in different biological pathways.
JOURNAL OF PROTEOMICS
(2021)
Article
Cell Biology
Yun Yeong Lee, Eun Sol Gil, In Hye Jeong, Hantai Kim, Jeong Hun Jang, Yun-Hoon Choung
Summary: The study identified that in age-related hearing loss (ARHL), the loss of inner and outer hair cells primarily occurs in the high-frequency region, and levels of ER stress marker proteins and heat shock proteins increase as levels of the HSF1 protein decrease. Overexpression of HSF1 can reduce CHOP and cleaved caspase-3 while increasing HSP40 and HSP70 proteins, providing significant hearing protection effects in the high-frequency region.
Review
Plant Sciences
Yeeun Kang, Kwanuk Lee, Ken Hoshikawa, Myeongyong Kang, Seonghoe Jang
Summary: The effects of climate change, such as increased global temperatures and abnormal weather events, are causing concerns for plant vegetation and crop productivity. This review focuses on the molecular processes of plants in response to heat stress, with emphasis on the classification and functions of heat shock proteins. Developing vegetable crops with enhanced thermotolerance using genetic tools is crucial to alleviate the adverse effects of heat stress.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Agriculture, Dairy & Animal Science
Darae Kang, Kwanseob Shim
Summary: The study showed that early heat conditioning can reduce the negative impacts of acute heat stress on broilers by regulating heat shock proteins and corticosterone levels.
Article
Agriculture, Dairy & Animal Science
Tao Peng, Hanle Shang, Mingrui Yang, Yanjiao Li, Junrong Luo, Mingren Qu, Xinyu Zhang, Xiaozhen Song
Summary: This study evaluated the effects of puerarin on beef cattle under hot environment, finding that puerarin supplementation enhanced immune and antioxidant functions. Specifically, 400 mg/kg of puerarin improved performance and meat quality by regulating stress hormone levels and increasing intramuscular fat deposition.
ANIMAL SCIENCE JOURNAL
(2021)