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Luo Y, Huang X, Hu H, Wang Y, Feng X, Chen S, Luo H. Intestinal microflora promotes Th2-mediated immunity through NLRP3 in damp and heat environments. Front Immunol 2024; 15:1367053. [PMID: 38756775 PMCID: PMC11096527 DOI: 10.3389/fimmu.2024.1367053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/15/2024] [Indexed: 05/18/2024] Open
Abstract
Background With the worsening of the greenhouse effect, the correlation between the damp-heat environment (DH) and the incidence of various diseases has gained increasing attention. Previous studies have demonstrated that DH can lead to intestinal disorders, enteritis, and an up-regulation of NOD-like receptor protein 3 (NLRP3). However, the mechanism of NLRP3 in this process remains unclear. Methods We established a DH animal model to observe the impact of a high temperature and humidity environment on the mice. We sequenced the 16S rRNA of mouse feces, and the RNA transcriptome of intestinal tissue, as well as the levels of cytokines including interferon (IFN)-γ and interleukin (IL)-4 in serum. Results Our results indicate that the intestinal macrophage infiltration and the expression of inflammatory genes were increased in mice challenged with DH for 14 days, while the M2 macrophages were decreased in Nlrp3 -/- mice. The alpha diversity of intestinal bacteria in Nlrp3 -/- mice was significantly higher than that in control mice, including an up-regulation of the Firmicutes/Bacteroidetes ratio. Transcriptomic analysis revealed 307 differentially expressed genes were decreased in Nlrp3 -/- mice compared with control mice, which was related to humoral immune response, complement activation, phagocytic recognition, malaria and inflammatory bowel disease. The ratio of IFN-γ/IL-4 was decreased in control mice but increased in Nlrp3 -/- mice. Conclusions Our study found that the inflammation induced by DH promotes Th2-mediated immunity via NLRP3, which is closely related to the disruption of intestinal flora.
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Affiliation(s)
- Yi Luo
- State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xinhua Huang
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Haiying Hu
- West China Hospital, Sichuan University, Chengdu, China
| | - Yao Wang
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiangrong Feng
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Song Chen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Huanhuan Luo
- State Key Laboratory of Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China
- School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
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2
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The effect of increased ambient temperature on Hsp70, superoxide dismutase, nitric oxide, malondialdehyde, and caspase activity in relation to the intrinsic and extrinsic apoptosis pathway of broiler blood cells. J Therm Biol 2022; 105:103211. [DOI: 10.1016/j.jtherbio.2022.103211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 01/26/2022] [Accepted: 02/08/2022] [Indexed: 11/19/2022]
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3
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Genetic diversity and signatures of selection for heat tolerance and immune response in Iranian native chickens. BMC Genomics 2022; 23:224. [PMID: 35317755 PMCID: PMC8939082 DOI: 10.1186/s12864-022-08434-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 03/02/2022] [Indexed: 12/14/2022] Open
Abstract
Background Understanding how evolutionary forces relating to climate have shaped the patterns of genetic variation within and between species is a fundamental pursuit in biology. Iranian indigenous chickens have evolved genetic adaptations to their local environmental conditions, such as hot and arid regions. In the present study, we provide a population genome landscape of genetic variations in 72 chickens representing nine Iranian indigenous ecotypes (Creeper, Isfahan, Lari, Marand, Mashhad, Naked neck, Sari, Shiraz and Yazd) and two commercial lines (White Leghorn and Arian). We further performed comparative population genomics to evaluate the genetic basis underlying variation in the adaptation to hot climate and immune response in indigenous chicken ecotypes. To detect genomic signatures of adaptation, we applied nucleotide diversity (θπ) and FST statistical measurements, and further analyzed the results to find genomic regions under selection for hot adaptation and immune response-related traits. Results By generating whole-genome data, we assessed the relationship between the genetic diversity of indigenous chicken ecotypes and their genetic distances to two different commercial lines. The results of genetic structure analysis revealed clustering of indigenous chickens in agreement with their geographic origin. Among all studied chicken groups, the highest level of linkage disequilibrium (LD) (~ 0.70) was observed in White Leghorn group at marker pairs distance of 1 Kb. The results from admixture analysis demonstrated evidence of shared ancestry between Arian individuals and indigenous chickens, especially those from the north of the country. Our search for potential genomic regions under selection in indigenous chicken ecotypes revealed several immune response and heat shock protein-related genes, such as HSP70, HSPA9, HSPH1, HSP90AB1 and PLCB4 that have been previously unknown to be involved in environmental-adaptive traits. In addition, we found some other candidate loci on different chromosomes probably related with hot adaptation and immune response-related traits. Conclusions The work provides crucial insights into the structural variation in the genome of Iranian indigenous chicken ecotypes, which up to now has not been genetically investigated. Several genes were identified as candidates for drought, heat tolerance, immune response and other phenotypic traits. These candidate genes may be helpful targets for understanding of the molecular basis of adaptation to hot environmental climate and as such they should be used in chicken breeding programs to select more efficient breeds for desert climate. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08434-7.
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Vijayakumar P, Singaravadivelan A, Mishra A, Jagadeesan K, Bakyaraj S, Suresh R, Sivakumar T. Whole-Genome comparative analysis reveals genetic mechanisms of disease resistance and heat tolerance of tropical Bos indicus cattle breeds. Genome 2021; 65:241-254. [PMID: 34914549 DOI: 10.1139/gen-2021-0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The Bos indicus cattle breeds have been naturally selected over thousands of years for disease resistance and thermo-tolerance. However, a genetic mechanism of these specific inherited characteristics needs to be discovered. Hence, in this study, the whole-genome comparative analysis of Bos indicus cattle breeds of Kangayam, Tharparkar, Sahiwal, Red Sindhi, and Hariana of the Indian subcontinent was conducted. The genetic variants identification analysis revealed a total of 15,58,51,012 SNPs and 1,00,62,805 InDels in the mapped reads across all Bos indicus cattle breeds. The functional annotation of 17,252 genes that comprised both, SNPs and InDels, of high functional impact on proteins, has been carried out. The functional annotation results revealed the pathways that were involved in the innate immune response including toll-like receptors, a retinoic acid-inducible gene I like receptors, NOD-like receptors, Jak-STAT signaling pathways, and the non-synonymous variants in the candidate immune genes. Further, we also identified several pathways involved in heat shock response, hair and skin properties, oxidative stress response, osmotic stress response, thermal sweating, feed intake, metabolism, and the non-synonymous variants in the candidate thermo-tolerant genes. These pathways and genes were directly or indirectly contributing to the disease resistance and thermo-tolerance adaptations of Bos indicus cattle breeds.
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Affiliation(s)
- Periyasamy Vijayakumar
- Veterinary College and Research Institute, TANUVAS, Animal Genetics and Breeding, Livestock Farm Comlex, Orathanadu, Tamil Nadu, India, 6145 625;
| | - Arunasalam Singaravadivelan
- Veterinary College and Research Institute, TANUVAS, Livestock Production Management, VCRI, Orathanadu, Orathanadu, Tamil Nadu, India, 614 625;
| | - Anamika Mishra
- High Security Animal Disease laboratory, Indian Veterinary Research Institute, Anand Nagar, Bhopal, Madhya Pradesh, India, 462021;
| | - Krishnan Jagadeesan
- University Training and Research Centre, Pillayarpatty - 613 403, , Animal Genetics and Breeding, Thanjavur, Tamil Nadu, India;
| | - Sanniyasi Bakyaraj
- College of Poultry Production and Management, TANUVAS, Hosur, Tamil nadu, India;
| | - Ramalingam Suresh
- Veterinary College and Research Institute, TANUVAS, Animal Genetics and Breeding, VETERINARY COLLEGE AND RESEARCH INSTITUTE, Orathanadu, Tamil Nadu, India, 243122.,Indian Veterinary Research Institute, 30072, 117, Salihothra Hostel (4th hostel), IVRI, BAREILLY, Izatnagar, UTTAR PRADESH, India, 243122;
| | - Thiagarajan Sivakumar
- Veterinary College and Research Institute, TANUVAS, Livestock Production Management, Orathanadu, Tamil Nadu, India;
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Oke OE, Uyanga VA, Iyasere OS, Oke FO, Majekodunmi BC, Logunleko MO, Abiona JA, Nwosu EU, Abioja MO, Daramola JO, Onagbesan OM. Environmental stress and livestock productivity in hot-humid tropics: Alleviation and future perspectives. J Therm Biol 2021; 100:103077. [PMID: 34503814 DOI: 10.1016/j.jtherbio.2021.103077] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Revised: 08/08/2021] [Accepted: 08/09/2021] [Indexed: 11/26/2022]
Abstract
Tropical environments are characterized by persistently high temperature and relative humidity and the harsh environmental conditions pose a serious limitation on the optimal performance of the animals raised in this region. Heat stress causes deleterious effects on welfare, immunology and physiology of farm animals with a resultant impact on their productivity as the use of body resources is re-organized and the metabolic priorities of animals shift away from production, growth, health and reproduction. It is imperative to understand the mechanisms involved in the thermoregulation of animals under tropical conditions in order to develop appropriate strategies for their improvement. This review focuses on the available data on the increasing global temperature and the adverse impact of tropical conditions on animals' adaptive mechanism affected during thermal stress on production performance, intestinal and ileal microbiome, physiological responses, antioxidant system, metabolic responses, cellular and molecular response, adaptive mechanism strategies to heat stress and also strategies to palliate environmental stress on livestock under humid tropical conditions including environmental manipulation, genetic opportunity, epigenetic and feeding modification. Overall, the present review has identified the disturbance in the physiological indices of tropical livestock and the need for concerted efforts in ameliorating the adverse impacts of high ambient temperature aggravated by high humidity on livestock in tropical environments. Further research is needed on genotype-by-environment interaction on the thermotolerance of different livestock species in the tropics.
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Affiliation(s)
- O E Oke
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria.
| | - V A Uyanga
- Depart of Animal Science, College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Shandong, China
| | - O S Iyasere
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
| | - F O Oke
- Department of Agricultural Economics and Farm Management, Federal University of Agriculture, Abeokuta, Nigeria
| | - B C Majekodunmi
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
| | - M O Logunleko
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
| | - J A Abiona
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
| | - E U Nwosu
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
| | - M O Abioja
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
| | - J O Daramola
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
| | - O M Onagbesan
- Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
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6
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Kpomasse CC, Oke OE, Houndonougbo FM, Tona K. Broiler production challenges in the tropics: A review. Vet Med Sci 2021; 7:831-842. [PMID: 33559980 PMCID: PMC8136938 DOI: 10.1002/vms3.435] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 11/12/2020] [Accepted: 01/16/2021] [Indexed: 12/20/2022] Open
Abstract
Under tropical climate, broiler production is encumbered by several constraints which make it difficult for them to attain their genetic potential. The scarcity and high price of poultry feed and veterinary services and the harsh environmental conditions with respect to thermal stress are some of the challenges that hinder optimal growth of the birds. Limited availability of feedstuffs, including crucial feed ingredients like maize and oil seedcakes, is an important challenge to the sector, since feed still represents a major cost of producing broiler chickens. Additionally, the problem of climate change, which has become a global concern, is the main problem in broiler production under hot and humid climate. Under high ambient temperature, feed intake decreases, carbohydrates metabolism and protein synthesis efficiency are disturbed. Lipid utilization is lower and glucose or insulin homeostasis is altered while fat deposition and oxidative stress increases. Several strategies are used to ameliorate the effect of heat stress in poultry. The objective of this review was to summarize the challenge in broiler production under hot and humid climate and different approaches to fight heat stress in poultry.
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Affiliation(s)
- Cocou Claude Kpomasse
- Regional Center of Excellence on Poultry Sciences (CERSA), University of Lome, Lome, Togo
| | - Oyegunle Emmanuel Oke
- Regional Center of Excellence on Poultry Sciences (CERSA), University of Lome, Lome, Togo.,Department of Animal Physiology, Federal University of Agriculture, Abeokuta, Nigeria
| | | | - Kokou Tona
- Regional Center of Excellence on Poultry Sciences (CERSA), University of Lome, Lome, Togo
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7
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Galal A, Radwan LM, Rezik HH, Ayoub H. Expression levels of HSP70 and CPT-1 in three local breeds of chickens reared under normal or heat stress conditions after the introduction of the naked neck gene. J Therm Biol 2019; 80:113-118. [DOI: 10.1016/j.jtherbio.2018.12.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 12/06/2018] [Accepted: 12/16/2018] [Indexed: 12/14/2022]
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8
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He L, Yu H, Dai Y, Wang Y. Analysis of genetic variations of heat shock proteins Hsp70 and Hsp90 in Isaria farinosa strains from the Yunnan province of China. Folia Microbiol (Praha) 2019; 64:521-534. [PMID: 30666590 DOI: 10.1007/s12223-018-00676-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Accepted: 12/26/2018] [Indexed: 11/29/2022]
Abstract
In the present study, the cDNA sequences of Hsp70 and Hsp90 genes of Isaria farinosa (designated IFHSP70 and IFHSP90) were cloned and characterized using multiple techniques of molecular biology and bioinformatics. The genetic differentiation of the two genes was investigated among 10 geographically separated populations distributed in the Yunnan province. The complete sequence of the IFHSP70 cDNA had a length of 2158 bp, and contained an open reading frame (ORF) of 1962 bp, encoding a 71-kDa polypeptide comprising of 653 amino acids. IFHSP90 cDNA had a length of 2144 bp, and contained an ORF of 2103 bp, encoding a polypeptide of 79.23 kDa, comprising of 700 amino acids. The deduced amino acid sequences of IFHSP70 and IFHSP90 shared high sequence identities with other fungi. Fundamental information pertaining to the protein families, signatures, and conserved motifs of Hsp70 and Hsp90 were also identified. Analysis of molecular variances (AMOVA) from the Hsp70 and Hsp90 genes showed that the genetic variation within-population (83.26%, 83.08%) was greater than among the populations (16.74%, 16.92%). The values of nucleotide diversity (Pi), haplotype diversity (Hd), coefficient of genetic differentiation (Fst), and gene flow (Nm) were calculated. For Hsp70, Pi = 0.0425, Hd = 0.888, Fst = 0.167, Nm = 1.24; For Hsp90, Pi = 0.0420, Hd = 0.894, Fst = 0.169, and Nm = 1.22. These data indicated that the genetic differentiation among 10 different geographical populations of I. farinosa was limited. This study describes, for the first time, cloning, characterization and identification of Isaria farinosa Hsp70 and Hsp90 genes, and provides a preliminary basis for exploring the genetic structure of the genus Isaria using the sequences of Hsp70 and Hsp90 as molecular markers.
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Affiliation(s)
- Lu He
- Yunnan Herbal Laboratory, Institute of Herb Biotic Resources, School of Life Sciences, Yunnan University, Kunming, 650091, China.,Institute of Tropical Eco-agriculture, Yunnan Academy of Agriculture Science, Yuanmou, 651399, China.,International Joint Research Center for Sustainable Utilization of Cordyceps Bioresources in China and Southeast Asia, Yunnan University, Kunming, 650091, China
| | - Hong Yu
- Yunnan Herbal Laboratory, Institute of Herb Biotic Resources, School of Life Sciences, Yunnan University, Kunming, 650091, China. .,International Joint Research Center for Sustainable Utilization of Cordyceps Bioresources in China and Southeast Asia, Yunnan University, Kunming, 650091, China.
| | - Yongdong Dai
- Yunnan Herbal Laboratory, Institute of Herb Biotic Resources, School of Life Sciences, Yunnan University, Kunming, 650091, China.,International Joint Research Center for Sustainable Utilization of Cordyceps Bioresources in China and Southeast Asia, Yunnan University, Kunming, 650091, China
| | - Yuanbing Wang
- Yunnan Herbal Laboratory, Institute of Herb Biotic Resources, School of Life Sciences, Yunnan University, Kunming, 650091, China.,International Joint Research Center for Sustainable Utilization of Cordyceps Bioresources in China and Southeast Asia, Yunnan University, Kunming, 650091, China.,Research Center of Cordyceps Development and Utilization of Kunming, Yunnan Herbal Biotech Co., Ltd., Kunming, 650106, China
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Heat stress in poultry production: Mitigation strategies to overcome the future challenges facing the global poultry industry. J Therm Biol 2018; 78:131-139. [DOI: 10.1016/j.jtherbio.2018.08.010] [Citation(s) in RCA: 150] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 06/16/2018] [Accepted: 08/18/2018] [Indexed: 02/06/2023]
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Mitochondrial DNA D-Loop Diversity of the Helmeted Guinea Fowls in Kenya and Its Implications on HSP70 Gene Functional Polymorphism. BIOMED RESEARCH INTERNATIONAL 2018; 2018:7314038. [PMID: 30539018 PMCID: PMC6258102 DOI: 10.1155/2018/7314038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 10/28/2018] [Indexed: 11/18/2022]
Abstract
We analyzed variations in 90 mitochondrial DNA (mtDNA) D-loop and heat shock protein 70 (HSP70) gene sequences from four populations of domesticated helmeted Guinea fowls (70 individuals) and 1 population of wild helmeted Guinea fowls (20 individuals) in Kenya in order to get information about their origin, genetic diversity, and traits associated with heat stress. 90 sequences were assigned to 25 distinct mtDNA and 4 HSP70 haplotypes. Most mtDNA haplotypes of the domesticated helmeted Guinea fowls were grouped into two main haplogroups, HgA and HgB. The wild population grouped into distinct mtDNA haplogroups. Two mtDNA haplotypes dominated across all populations of domesticated helmeted Guinea fowls: Hap2 and Hap4, while the dominant HSP70 haplotype found in all populations was CGC. Higher haplotype diversities were generally observed. The HSP70 haplotype diversities were low across all populations. The nucleotide diversity values for both mtDNA and HSP70 were generally low. Most mtDNA genetic variations occurred among populations for the three hierarchical categories considered while most variations in the HSP70 gene occurred among individuals within population. The lack of population structure among the domestic populations could suggest intensive genetic intermixing. The differentiation of the wild population may be due to a clearly distinct demographic history that shaped its genetic profile. Analysis of the Kenyan Guinea fowl population structure and history based on mtDNA D-loop variations and HSP70 gene functional polymorphisms complimented by archaeological and linguistic insight supports the hypothesis that most domesticated helmeted Guinea fowls in Kenya are related to the West African domesticated helmeted Guinea fowls. We recommend more molecular studies on this emerging poultry species with potential for poverty alleviation and food security against a backdrop of climate change in Africa.
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A minimum requirements method to isolate large quantities of highly purified DNA from one drop of poultry blood. J Genet 2018. [DOI: 10.1007/s12041-018-0983-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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12
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Duangjinda M, Tunim S, Duangdaen C, Boonkum W. Hsp70 Genotypes and Heat Tolerance of Commercial and Native Chickens Reared in Hot and Humid Conditions. ACTA ACUST UNITED AC 2017. [DOI: 10.1590/1806-9061-2016-0245] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- M Duangjinda
- Khon Kaen University, Thailand; Khon Kaen University, Thailand
| | - S Tunim
- Khon Kaen University, Thailand
| | | | - W Boonkum
- Khon Kaen University, Thailand; Khon Kaen University, Thailand
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13
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Wein Y, Bar Shira E, Friedman A. Avoiding handling-induced stress in poultry: use of uniform parameters to accurately determine physiological stress. Poult Sci 2017; 96:65-73. [DOI: 10.3382/ps/pew245] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 03/11/2016] [Accepted: 06/02/2016] [Indexed: 11/20/2022] Open
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14
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Hidanah S, Warsito SH, Nurhajati T, Lokapirnas WP, Malik A. Effects of Mangosteen Peel (Garcinia mangostana) and Ginger
Rhizome (Curcuma xanthorrhiza) on the Performance and
Cholesterol Levels of Heat-stressed Broiler Chickens. ACTA ACUST UNITED AC 2016. [DOI: 10.3923/pjn.2017.28.32] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Liang HM, Lin DY, Hsuuw YD, Huang TP, Chang HL, Lin CY, Wu HH, Hung KH. Association of heat shock protein 70 gene polymorphisms with acute thermal tolerance, growth, and egg production traits of native chickens in Taiwan. Arch Anim Breed 2016. [DOI: 10.5194/aab-59-173-2016] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. Heat stress is among the most challenging environmental conditions affecting commercial poultry. It severely affects growth and egg production, particularly in tropical and subtropical regions. This study aimed to examine physiological responses – including triiodothyronine (T3) levels, enzymatic activity of creatine kinase (CK) and lactate dehydrogenase (LDH), respiratory rates, and cloacal temperature – to acute heat stress associated with different genotypes of the HSP70 gene and to evaluate the association of these polymorphisms with growth and egg production. Genotyping was performed by single-strand conformation polymorphism analysis. The polymorphisms identified were A258A, A258G, and G258G. Twenty 12-week old birds were randomly selected from each genotype and exposed to 40 °C ambient temperature for 1 h. Blood samples were collected at 0 and 1 h following heat stress. Respiratory rate and cloacal temperature were measured following 0, 30, and 60 min of exposure. After 1 h, the A258A genotype exhibited lower levels of CK activity and plasma T3. Neither respiratory rate nor cloacal temperature displayed a significant association with the genotypes. Body weight gain differed among the genotypes for males (F = 3.268, P = 0.041) and females (F = 14.029, P < 0.001), and the A258A genotype exhibited the greatest weight gain at 0–16 weeks of age for both genders. There were no significant differences among genotypes regarding egg weight at first egg or the number of eggs laid until 40 weeks of age. The A258A genotype displayed higher heat tolerance with no negative effects on growth performance and egg production.
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Tamzil M, Noor R, Hardjoswor P, Manalu W, Sumantri C. Hematological Response of Chickens with Different Heat Shock Protein 70 Genotypes to Acute Heat Stress. ACTA ACUST UNITED AC 2013. [DOI: 10.3923/ijps.2014.14.20] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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17
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Xia M, Gan J, Luo Q, Zhang X, Yang G. Identification of duckHSP70gene, polymorphism analysis and tissue expression under control and heat stress conditions. Br Poult Sci 2013; 54:562-6. [DOI: 10.1080/00071668.2013.819487] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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18
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Tamzil M, Noor R, Hardjoswor P, Manalu W, Sumantri C. Acute Heat Stress Responses of Three Lines of Chickens with Different Heat Shock Protein (HSP)-70 Genotypes. ACTA ACUST UNITED AC 2013. [DOI: 10.3923/ijps.2013.264.272] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Gan JK, Zhang DX, He DL, Zhang XQ, Chen ZY, Luo QB. Promoter methylation negatively correlated with mRNA expression but not tissue differential expression after heat stress. GENETICS AND MOLECULAR RESEARCH 2013; 12:809-19. [PMID: 23546965 DOI: 10.4238/2013.march.15.1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
DNA methylation plays a central role in gene expression. In this study, we detected the promoter methylation pattern of the chicken heat shock protein 70 (HSP70) gene and its association with messenger RNA (mRNA) expression before and after heat shock. The results showed that mRNA expression increased in response to heat stress and peaked at 3 h before dropping. Hypomethylation of the HSP70 promoter occurred in all of the groups studied, but the difference between groups within tissue type was not significant. The DNA methylation level of the control and the 6-h treatment groups was slightly higher than that of the 3-h treatment group in brain tissue and leg muscle. Correlation analysis between mRNA expression and DNA methylation of HSP70 showed that DNA methylation was negatively associated with mRNA expression in leg muscle (P = 0.0124), indicating that DNA methylation may be negatively associated with the expression of HSP70, although the difference was not significant. We concluded that the expression of HSP70 is heat inducible and tissue dependent and that heat induction may correlate with DNA methylation pattern in the HSP70 promoter, whereas tissue dependence is unrelated to DNA methylation pattern.
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Affiliation(s)
- J K Gan
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
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20
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Abstract
Environmentally induced periods of heat stress decrease productivity with devastating economic consequences to global animal agriculture. Heat stress can be defined as a physiological condition when the core body temperature of a given species exceeds its range specified for normal activity, which results from a total heat load (internal production and environment) exceeding the capacity for heat dissipation and this prompts physiological and behavioral responses to reduce the strain. The ability of ruminants to regulate body temperature is species- and breed-dependent. Dairy breeds are typically more sensitive to heat stress than meat breeds, and higher-producing animals are more susceptible to heat stress because they generate more metabolic heat. During heat stress, ruminants, like other homeothermic animals, increase avenues of heat loss and reduce heat production in an attempt to maintain euthermia. The immediate responses to heat load are increased respiration rates, decreased feed intake and increased water intake. Acclimatization is a process by which animals adapt to environmental conditions and engage behavioral, hormonal and metabolic changes that are characteristics of either acclimatory homeostasis or homeorhetic mechanisms used by the animals to survive in a new 'physiological state'. For example, alterations in the hormonal profile are mainly characterized by a decline and increase in anabolic and catabolic hormones, respectively. The response to heat load and the heat-induced change in homeorhetic modifiers alters post-absorptive energy, lipid and protein metabolism, impairs liver function, causes oxidative stress, jeopardizes the immune response and decreases reproductive performance. These physiological modifications alter nutrient partitioning and may prevent heat-stressed lactating cows from recruiting glucose-sparing mechanisms (despite the reduced nutrient intake). This might explain, in large part, why decreased feed intake only accounts for a minor portion of the reduced milk yield from environmentally induced hyperthermic cows. How these metabolic changes are initiated and regulated is not known. It also remains unclear how these changes differ between short-term v. long-term heat acclimation to impact animal productivity and well-being. A better understanding of the adaptations enlisted by ruminants during heat stress is necessary to enhance the likelihood of developing strategies to simultaneously improve heat tolerance and increase productivity.
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Dorji N, Duangjinda M, Phasuk Y. Genetic characterization of Bhutanese native chickens based on an analysis of Red Junglefowl (Gallus gallus gallus and Gallus gallus spadecieus), domestic Southeast Asian and commercial chicken lines (Gallus gallus domesticus). Genet Mol Biol 2012; 35:603-9. [PMID: 23055799 PMCID: PMC3459410 DOI: 10.1590/s1415-47572012005000039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2011] [Accepted: 03/26/2012] [Indexed: 11/22/2022] Open
Abstract
The genetic diversity of Bhutanese chickens needs to be understood in order to develop a suitable conservation strategy for these birds in Bhutan. In this, work, we used microsatellite markers to examine the genetic diversity of Bhutanese chickens. Four Bhutanese chicken varieties (Black plumage, Frizzle, Naked neck and Red Junglefowl-like, corresponding to Yuebjha Narp, Phulom, Khuilay and Seim, respectively), two subspecies of Red Junglefowl (Gallus gallus gallus and Gallus gallus spadecieus), two varieties of Thai native chickens (Pradhu Hang Dam and Chee; Gallus gallus domesticus) representing the Southeast Asian domestic chicken, and two commercial lines (Broiler and Single Comb White Leghorn) were genotyped with 18 microsatellites that included 16 loci recommended by the FAO/ISAG for investigations of genetic variability in chickens. All loci were polymorphic, with the number of alleles ranging from six (MCW0111) to 23 (MCW0183). Substantial genetic variation was observed in all populations, with the Bhutanese native chicken Yuebjha Narp (Black plumage chicken) showing the lowest genetic variability. Despite extensive intrapopulation variation, the genetic differentiation among 10 populations was moderate. A neighbor-joining tree revealed the genetic relationships involved while principal component analysis showed that Bhutanese native chickens should be given priority in conservation efforts because of their genetic distinctiveness. Chee chickens are especially valuable as a reservoir of predomestic diversity, as indicated by their greater genetic variation and their position in the phylogenetic tree.
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Affiliation(s)
- Nedup Dorji
- Department of Animal Science, Faculty of Agriculture, Khon Kaen University, Khon Kaen, Thailand. ; Faculty of Animal Husbandry, College of Natural Resources, Royal University of Bhutan, Bhutan
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22
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Soleimani A, Zulkifli I, Omar A, Raha A. Physiological responses of 3 chicken breeds to acute heat stress. Poult Sci 2011; 90:1435-40. [DOI: 10.3382/ps.2011-01381] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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