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Yohana MA, Ray GW, Yang Q, Kou S, Tan B, Wu J, Mao M, Bo Ge Z, Feng L. Protective effects of butyric acid during heat stress on the survival, immune response, histopathology, and gene expression in the hepatopancreas of juvenile pacific shrimp (L. Vannamei). FISH & SHELLFISH IMMUNOLOGY 2024; 150:109610. [PMID: 38734117 DOI: 10.1016/j.fsi.2024.109610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/07/2024] [Accepted: 05/02/2024] [Indexed: 05/13/2024]
Abstract
This study looked at the effects of adding butyric acid (BA) to the diets of juvenile Pacific shrimp and how it affected their response to survival, immunity, histopathological, and gene expression profiles under heat stress. The shrimp were divided into groups: a control group with no BA supplementation and groups with BA inclusion levels of 0.5 %, 1 %, 1.5 %, 2 %, and 2.5 %. Following the 8-week feeding trial period, the shrimp endured a heat stress test lasting 1 h at a temperature of 38 °C. The results showed that the control group had a lower survival rate than those given BA. Interestingly, no mortality was observed in the group receiving 1.5 % BA supplementation. Heat stress had a negative impact on the activities of alkaline phosphatase (AKP) and acid phosphatase (ACP) in the control group. Still, these activities were increased in shrimp fed the BA diet. Similar variations were observed in AST and ALT fluctuations among the different groups. The levels of triglycerides (TG) and cholesterol (CHO) increased with high temperatures but were reduced in shrimp-supplemented BA. The activity of an antioxidant enzyme superoxide dismutase (SOD) increased with higher BA levels (P < 0.05). Moreover, the groups supplemented with 1.5 % BA exhibited a significant reduction in malondialdehyde (MDA) content (P < 0.05), suggesting the potential antioxidant properties of BA. The histology of the shrimp's hepatopancreas showed improvements in the groups given BA. Conversely, the BA significantly down-regulated the HSPs and up-regulated MnSOD transcript level in response to heat stress. The measured parameters determine the essential dietary requirement of BA for shrimp. Based on the results, the optimal level of BA for survival, antioxidant function, and immunity for shrimp under heat stress is 1.5 %.
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Affiliation(s)
- Mpwaga Alatwinusa Yohana
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, PR China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, 524088, PR China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, 524088, PR China
| | - Gyan Watson Ray
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, PR China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, 524088, PR China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, 524088, PR China
| | - Qihui Yang
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, PR China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, 524088, PR China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, 524088, PR China.
| | - Shiyu Kou
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, PR China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, 524088, PR China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, 524088, PR China
| | - Beiping Tan
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, PR China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, 524088, PR China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, 524088, PR China
| | - Jiahua Wu
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, PR China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, 524088, PR China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, 524088, PR China
| | - Minling Mao
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, PR China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, 524088, PR China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, 524088, PR China
| | - Zhan Bo Ge
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, PR China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, 524088, PR China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, 524088, PR China
| | - Lan Feng
- College of Fisheries, Guangdong Ocean University, Zhanjiang, 524088, PR China; Aquatic Animals Precision Nutrition and High Efficiency Feed Engineering Research Center of Guangdong Province, Zhanjiang, 524088, PR China; Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Zhanjiang, 524088, PR China
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Brink N, Lakhoo DP, Solarin I, Maimela G, von Dadelszen P, Norris S, Chersich MF. Impacts of heat exposure in utero on long-term health and social outcomes: a systematic review. BMC Pregnancy Childbirth 2024; 24:344. [PMID: 38704541 PMCID: PMC11069224 DOI: 10.1186/s12884-024-06512-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 04/11/2024] [Indexed: 05/06/2024] Open
Abstract
BACKGROUND Climate change, particularly global warming, is amongst the greatest threats to human health. While short-term effects of heat exposure in pregnancy, such as preterm birth, are well documented, long-term effects have received less attention. This review aims to systematically assess evidence on the long-term impacts on the foetus of heat exposure in utero. METHODS A search was conducted in August 2019 and updated in April 2023 in MEDLINE(PubMed). We included studies on the relationship of environmental heat exposure during pregnancy and any long-term outcomes. Risk of bias was assessed using tools developed by the Joanna-Briggs Institute, and the evidence was appraised using the GRADE approach. Synthesis without Meta-Analysis (SWiM) guidelines were used. RESULTS Eighteen thousand six hundred twenty one records were screened, with 29 studies included across six outcome groups. Studies were mostly conducted in high-income countries (n = 16/25), in cooler climates. All studies were observational, with 17 cohort, 5 case-control and 8 cross-sectional studies. The timeline of the data is from 1913 to 2019, and individuals ranged in age from neonates to adults, and the elderly. Increasing heat exposure during pregnancy was associated with decreased earnings and lower educational attainment (n = 4/6), as well as worsened cardiovascular (n = 3/6), respiratory (n = 3/3), psychiatric (n = 7/12) and anthropometric (n = 2/2) outcomes, possibly culminating in increased overall mortality (n = 2/3). The effect on female infants was greater than on males in 8 of 9 studies differentiating by sex. The quality of evidence was low in respiratory and longevity outcome groups to very low in all others. CONCLUSIONS Increasing heat exposure was associated with a multitude of detrimental outcomes across diverse body systems. The biological pathways involved are yet to be elucidated, but could include epigenetic and developmental perturbations, through interactions with the placenta and inflammation. This highlights the need for further research into the long-term effects of heat exposure, biological pathways, and possible adaptation strategies in studies, particularly in neglected regions. Heat exposure in-utero has the potential to compound existing health and social inequalities. Poor study design of the included studies constrains the conclusions of this review, with heterogenous exposure measures and outcomes rendering comparisons across contexts/studies difficult. TRIAL REGISTRATION PROSPERO CRD 42019140136.
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Affiliation(s)
- Nicholas Brink
- Climate and Health Directorate, Wits RHI, University of the Witwatersrand, Johannesburg, South Africa.
| | - Darshnika P Lakhoo
- Climate and Health Directorate, Wits RHI, University of the Witwatersrand, Johannesburg, South Africa
| | - Ijeoma Solarin
- Climate and Health Directorate, Wits RHI, University of the Witwatersrand, Johannesburg, South Africa
| | - Gloria Maimela
- Climate and Health Directorate, Wits RHI, University of the Witwatersrand, Johannesburg, South Africa
| | | | - Shane Norris
- MRC Developmental Pathways for Health Research Unit, University of the Witwatersrand, Johannesburg, South Africa
| | - Matthew F Chersich
- Climate and Health Directorate, Wits RHI, University of the Witwatersrand, Johannesburg, South Africa
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Kim H, Jo JH, Lee HG, Park W, Lee HK, Park JE, Shin D. Inflammatory response in dairy cows caused by heat stress and biological mechanisms for maintaining homeostasis. PLoS One 2024; 19:e0300719. [PMID: 38527055 PMCID: PMC10962848 DOI: 10.1371/journal.pone.0300719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 03/04/2024] [Indexed: 03/27/2024] Open
Abstract
Climate change increases global temperatures, which is lethal to both livestock and humans. Heat stress is known as one of the various livestock stresses, and dairy cows react sensitively to high-temperature stress. We aimed to better understand the effects of heat stress on the health of dairy cows and observing biological changes. Individual cows were divided into normal (21-22 °C, 50-60% humidity) and high temperature (31-32 °C, 80-95% humidity), respectively, for 7-days. We performed metabolomic and transcriptome analyses of the blood and gut microbiomes of feces. In the high-temperature group, nine metabolites including linoleic acid and fructose were downregulated, and 154 upregulated and 72 downregulated DEGs (Differentially Expressed Genes) were identified, and eighteen microbes including Intestinimonas and Pseudoflavonifractor in genus level were significantly different from normal group. Linoleic acid and fructose have confirmed that associated with various stresses, and functional analysis of DEG and microorganisms showing significant differences confirmed that high-temperature stress is related to the inflammatory response, immune system, cellular energy mechanism, and microbial butyrate production. These biological changes were likely to withstand high-temperature stress. Immune and inflammatory responses are known to be induced by heat stress, which has been identified to maintain homeostasis through modulation at metabolome, transcriptome and microbiome levels. In these findings, heat stress condition can trigger alteration of immune system and cellular energy metabolism, which is shown as reduced metabolites, pathway enrichment and differential microbes. As results of this study did not include direct phenotypic data, we believe that additional validation is required in the future. In conclusion, high-temperature stress contributed to the reduction of metabolites, changes in gene expression patterns and composition of gut microbiota, which are thought to support dairy cows in withstanding high-temperature stress via modulating immune-related genes, and cellular energy metabolism to maintain homeostasis.
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Affiliation(s)
- Hana Kim
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju, Jeollabuk-do, Republic of Korea
| | - Jang-Hoon Jo
- Department of Animal Science and Technology, Sanghuh College of Life Sciences, Konkuk University, Seoul, Republic of Korea
| | - Hong-Gu Lee
- Department of Animal Science and Technology, Sanghuh College of Life Sciences, Konkuk University, Seoul, Republic of Korea
| | - Woncheoul Park
- Division of Animal Genomics and Bioinformatics, National Institute of Animal Science, Rural Development Administration, Wanju, Jeollabuk-do, Republic of Korea
| | - Hak-Kyo Lee
- Department of Animal Biotechnology, Jeonbuk National University, Jeonju, Jeollabuk-do, Republic of Korea
| | - Jong-Eun Park
- Department of Animal Biotechnology, College of Applied Life Science, Jeju National University, Jeju, Jeju-do, Republic of Korea
| | - Donghyun Shin
- Agricultural Convergence Technology, Jeonbuk National University, Jeonju, Jeollabuk-do, Republic of Korea
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Zhou E, Zhang L, He L, Xiao Y, Zhang K, Luo B. Cold exposure, gut microbiota and health implications: A narrative review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 916:170060. [PMID: 38242473 DOI: 10.1016/j.scitotenv.2024.170060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/21/2024]
Abstract
Temperature has been recognized as an important environmental factor affecting the composition and function of gut microbiota (GM). Although research on high-temperature impacts has been well studied, knowledge about the effect of cold exposure on GM remains limited. This narrative review aims to synthesize the latest scientific findings on the impact of cold exposure on mammalian GM, and its potential health implications. Chronic cold exposure could disrupt the α-diversity and the composition of GM in both experimental animals and wild-living hosts. Meanwhile, cold exposure could impact gut microbial metabolites, such as short-chain fatty acids. We also discussed plausible biological pathways and mechanisms by which cold-induced changes may impact host health, including metabolic homeostasis, fitness and thermogenesis, through the microbiota-gut-brain axis. Intriguingly, alterations in GM may provide a tool for favorably modulating the host response to the cold temperature. Finally, current challenges and future perspectives are discussed, emphasizing the need for translational research in humans. GM could be manipulated by utilizing nutritional strategies, such as probiotics and prebiotics, to deal with cold-related health issues and enhance well-being in populations living or working in cold environments.
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Affiliation(s)
- Erkai Zhou
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Ling Zhang
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Li He
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Ya Xiao
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Kai Zhang
- Department of Environmental Health Sciences, School of Public Health, University at Albany, State University of New York, Rensselaer, NY 12144, USA
| | - Bin Luo
- Institute of Occupational Health and Environmental Health, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, China.
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Fan MZ, Cheng L, Wang M, Chen J, Fan W, Jashari F, Wang W. Monomodular and multifunctional processive endocellulases: implications for swine nutrition and gut microbiome. Anim Microbiome 2024; 6:4. [PMID: 38308359 PMCID: PMC10837961 DOI: 10.1186/s42523-024-00292-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Accepted: 01/21/2024] [Indexed: 02/04/2024] Open
Abstract
Poor efficiency of dietary fibre utilization not only limits global pork production profit margin but also adversely affects utilization of various dietary nutrients. Poor efficiency of dietary nutrient utilization further leads to excessive excretion of swine manure nutrients and results in environmental impacts of emission of major greenhouse gases (GHG), odor, nitrate leaching and surface-water eutrophication. Emission of the major GHG from intensive pork production contributes to global warming and deteriorates heat stress to pigs in tropical and sub-tropical swine production. Exogenous fibre enzymes of various microbial cellulases, hemicellulases and pectinases have been well studied and used in swine production as the non-nutritive gut modifier feed enzyme additives in the past over two decades. These research efforts have aimed to improve growth performance, nutrient utilization, intestinal fermentation as well as gut physiology, microbiome and health via complementing the porcine gut symbiotic microbial fibrolytic activities towards dietary fibre degradation. The widely reported exogenous fibre enzymes include the singular use of respective cellulases, hemicellulases and pectinases as well as their multienzyme cocktails. The currently applied exogenous fibre enzymes are largely limited by their inconsistent in vivo efficacy likely due to their less defined enzyme stability and limited biochemical property. More recently characterized monomodular, multifunctional and processive endoglucanases have the potential to be more efficaciously used as the next-generation designer fibre biocatalysts. These newly emerging multifunctional and processive endoglucanases have the potential to unleash dietary fibre sugar constituents as metabolic fuels and prebiotics, to optimize gut microbiome, to maintain gut permeability and to enhance performance in pigs under a challenged environment as well as to parallelly unlock biomass to manufacture biofuels and biomaterials.
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Affiliation(s)
- Ming Z Fan
- Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada.
- One Health Institute, University of Guelph, N1G 2W1, Guelph, ON, Canada.
| | - Laurence Cheng
- Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada
| | - Min Wang
- Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada
| | - Jiali Chen
- Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada
| | - Wenyi Fan
- Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada
- Transpharmation LTD, N1M 2W3, Fergus, ON, Canada
| | - Fatmira Jashari
- Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada
- Department of Human Health and Nutritional Sciences, University of Guelph, N1G 2W1, Guelph, ON, Canada
| | - Weijun Wang
- Department of Animal Biosciences, University of Guelph, N1G 2W1, Guelph, ON, Canada
- The Canadian Food Inspection Agency Ontario Operation, N1G 4S9, Guelph, ON, Canada
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Li Q, Yi X, Li L, Sun Y, Nie Z, Du J, Cao L, Gao J, Xu G. Effects of effective microorganisms on the physiological status, intestinal microbiome, and serum metabolites of Eriocheir sinensis. Int Microbiol 2024; 27:167-178. [PMID: 37261580 DOI: 10.1007/s10123-023-00375-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 05/06/2023] [Accepted: 05/09/2023] [Indexed: 06/02/2023]
Abstract
The compound known as effective microorganisms (EMs) is widely used in aquaculture to improve water quality, but how they affect the health of Chinese mitten crab (Eriocheir sinensis) is unclear, especially in terms of intestinal microbiota and serum metabolites. In this study, we fed juvenile crabs with an EM-containing diet to explore the effects of EM on the physiological status, intestinal microbiome, and metabolites of E. sinensis. The activities of alanine aminotransferase and alkaline phosphatase were significantly enhanced by EM, indicating that EM supplementation effectively enhanced the antioxidant capacity of E. sinensis. Proteobacteria, Tenericutes, Firmicutes, Bacteroidetes, and Actinobacteria were the main intestinal microbes in both the control and EM groups. Linear discriminant effect size analysis showed that Fusobacteriaceae, Desulfovibrio, and Morganella were biomarkers in the control group, and Exiguobacterium and Rhodobacteraceae were biomarkers in the EM group. Metabolomics analysis revealed that EM supplementation increased cellular energy sources and decreased protein consumption, and oxidative stress. Together, these results indicate that EM can optimize the intestinal microbiome and serum metabolites, thereby benefiting the health of E. sinensis.
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Affiliation(s)
- Quanjie Li
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Xiangyu Yi
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
| | - Le Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, Jiangsu, China
| | - Yi Sun
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Zhijuan Nie
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Jinliang Du
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Liping Cao
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Jiancao Gao
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Gangchun Xu
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China.
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, 210023, Jiangsu, China.
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Riehl L, Fürst J, Kress M, Rykalo N. The importance of the gut microbiome and its signals for a healthy nervous system and the multifaceted mechanisms of neuropsychiatric disorders. Front Neurosci 2024; 17:1302957. [PMID: 38249593 PMCID: PMC10797776 DOI: 10.3389/fnins.2023.1302957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/13/2023] [Indexed: 01/23/2024] Open
Abstract
Increasing evidence links the gut microbiome and the nervous system in health and disease. This narrative review discusses current views on the interaction between the gut microbiota, the intestinal epithelium, and the brain, and provides an overview of the communication routes and signals of the bidirectional interactions between gut microbiota and the brain, including circulatory, immunological, neuroanatomical, and neuroendocrine pathways. Similarities and differences in healthy gut microbiota in humans and mice exist that are relevant for the translational gap between non-human model systems and patients. There is an increasing spectrum of metabolites and neurotransmitters that are released and/or modulated by the gut microbiota in both homeostatic and pathological conditions. Dysbiotic disruptions occur as consequences of critical illnesses such as cancer, cardiovascular and chronic kidney disease but also neurological, mental, and pain disorders, as well as ischemic and traumatic brain injury. Changes in the gut microbiota (dysbiosis) and a concomitant imbalance in the release of mediators may be cause or consequence of diseases of the central nervous system and are increasingly emerging as critical links to the disruption of healthy physiological function, alterations in nutrition intake, exposure to hypoxic conditions and others, observed in brain disorders. Despite the generally accepted importance of the gut microbiome, the bidirectional communication routes between brain and gut are not fully understood. Elucidating these routes and signaling pathways in more detail offers novel mechanistic insight into the pathophysiology and multifaceted aspects of brain disorders.
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Affiliation(s)
| | | | | | - Nadiia Rykalo
- Institute of Physiology, Department of Physiology and Medical Physics, Medical University Innsbruck, Innsbruck, Austria
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Guo J, Wang L, Song K, Lu K, Li X, Zhang C. Physiological Response of Spotted Seabass ( Lateolabrax maculatus) to Different Dietary Available Phosphorus Levels and Water Temperature: Changes in Growth, Lipid Metabolism, Antioxidant Status and Intestinal Microbiota. Antioxidants (Basel) 2023; 12:2128. [PMID: 38136247 PMCID: PMC10740591 DOI: 10.3390/antiox12122128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/10/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
A 10-week growth experiment was conducted to assess the physiological response of spotted seabass (Lateolabrax maculatus) raised at moderate (27 °C) and high temperatures (33 °C) to different dietary available phosphorus (P) levels. Five diets with available P levels of 0.35, 0.55, 0.71, 0.82 and 0.92% were formulated, respectively. A water temperature of 33 °C significantly decreased growth performance and feed utilization, and increased oxidative stress and lipid deposition of spotted seabass compared with 27 °C. A second-order polynomial regression analysis based on weight gain (WG) showed that the available P requirement of spotted seabass raised at 27 °C and 33 °C was 0.72% and 0.78%, respectively. The addition of 0.71-0.82% P to the diet improved the growth performance, feed utilization, and antioxidant capacity of spotted seabass and alleviated the excessive lipid deposition compared with the low-P diet (0.35% P). Moreover, the addition of 0.71-0.92% P to diets increased the diversity of intestinal microbiota and the relative abundance of Lactococcus lactis and decreased the relative abundance of Plesiomonas compared with the low-P diet. Thus, dietary supplementation with 0.71-0.82% P improved the growth performance, antioxidant capacity and microbial composition of spotted seabass, and alleviated the disturbance of lipid metabolism caused by high temperature or low-P diet.
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Affiliation(s)
- Jiarong Guo
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen 361021, China; (J.G.); (K.L.)
- Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College, Jimei University, Xiamen 361021, China
| | - Ling Wang
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen 361021, China; (J.G.); (K.L.)
- Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College, Jimei University, Xiamen 361021, China
| | - Kai Song
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen 361021, China; (J.G.); (K.L.)
- Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College, Jimei University, Xiamen 361021, China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China
| | - Kangle Lu
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen 361021, China; (J.G.); (K.L.)
- Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College, Jimei University, Xiamen 361021, China
| | - Xueshan Li
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen 361021, China; (J.G.); (K.L.)
- Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College, Jimei University, Xiamen 361021, China
- Key Laboratory of Healthy Mariculture for the East China Sea, Ministry of Agriculture and Rural Affairs, Jimei University, Xiamen 361021, China
| | - Chunxiao Zhang
- State Key Laboratory of Mariculture Breeding, Fisheries College, Jimei University, Xiamen 361021, China; (J.G.); (K.L.)
- Xiamen Key Laboratory for Feed Quality Testing and Safety Evaluation, Fisheries College, Jimei University, Xiamen 361021, China
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Zheng X, Ma W, Wang Y, Wu C, Wang J, Ma Z, Wei Y, Cui C, Zhang S, Guan W, Chen F. Heat Stress-Induced Fetal Intrauterine Growth Restriction Is Associated with Elevated LPS Levels Along the Maternal Intestine-Placenta-Fetus Axis in Pregnant Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:19592-19609. [PMID: 38018895 DOI: 10.1021/acs.jafc.3c07058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
The exacerbation of the greenhouse effect has made heat stress (HS) an important risk factor for the occurrence of intrauterine growth restriction (IUGR). The experiment aims to uncover the effects of maternal HS on IUGR and its mechanisms. The results showed that HS leads to decreased maternal and fetal birth weights, accompanied by increased serum oxidative stress and cortisol levels. Moreover, HS inflicted significant damage to both the intestinal and placental barriers, altering maternal gut microbiota and increasing intestinal LPS levels. As a result, LPS levels increased in maternal serum, placenta, and fetus. Furthermore, HS damaged the intestinal structure, intensifying inflammation and disrupting the redox balance. The placenta exposed to HS exhibited changes in the placental structure along with disrupted angiogenesis and decreased levels of nutritional transporters. Additionally, the leakage of LPS triggered placental JNK and ERK phosphorylation, ultimately inducing severe placental inflammation and oxidative stress. This study suggests that LPS translocation from the maternal intestine to the fetus, due to a disrupted gut microbiota balance and compromised intestinal and placental barrier integrity, may be the primary cause of HS-induced IUGR. Furthermore, increased LPS leakage leads to placental inflammation, redox imbalance, and impaired nutrient transport, further restricting fetal growth.
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Affiliation(s)
- Xiaoyu Zheng
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Wen Ma
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Yibo Wang
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Caichi Wu
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Jun Wang
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Ziwei Ma
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Yulong Wei
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Chang Cui
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
| | - Shihai Zhang
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
- College of Animal Science and National Engineering Research Center for Pig Breeding Industry, South China Agricultural University, Guangzhou, Guangdong Province 510642, China
- Guangdong Laboratory of Modern Agriculture in Lingnan, Guangzhou, Guangdong Province 510642, China
| | - Wutai Guan
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
- College of Animal Science and National Engineering Research Center for Pig Breeding Industry, South China Agricultural University, Guangzhou, Guangdong Province 510642, China
- Guangdong Laboratory of Modern Agriculture in Lingnan, Guangzhou, Guangdong Province 510642, China
| | - Fang Chen
- College of Animal Science, South China Agricultural University, Guangdong Province, Guangzhou 510642, China
- College of Animal Science and National Engineering Research Center for Pig Breeding Industry, South China Agricultural University, Guangzhou, Guangdong Province 510642, China
- Guangdong Laboratory of Modern Agriculture in Lingnan, Guangzhou, Guangdong Province 510642, China
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10
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Castro-López C, Romero-Luna HE, García HS, Vallejo-Cordoba B, González-Córdova AF, Hernández-Mendoza A. Key Stress Response Mechanisms of Probiotics During Their Journey Through the Digestive System: A Review. Probiotics Antimicrob Proteins 2023; 15:1250-1270. [PMID: 36001271 DOI: 10.1007/s12602-022-09981-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2022] [Indexed: 11/26/2022]
Abstract
The survival of probiotic microorganisms during their exposure to harsh environments plays a critical role in the fulfillment of their functional properties. In particular, transit through the human gastrointestinal tract (GIT) is considered one of the most challenging habitats that probiotics must endure, because of the particularly stressful conditions (e.g., oxygen level, pH variations, nutrient limitations, high osmolarity, oxidation, peristalsis) prevailing in the different sections of the GIT, which in turn can affect the growth, viability, physiological status, and functionality of microbial cells. Consequently, probiotics have developed a series of strategies, called "mechanisms of stress response," to protect themselves from these adverse conditions. Such mechanisms may include but are not limited to the induction of new metabolic pathways, formation/production of particular metabolites, and changes of transcription rates. It should be highlighted that some of such mechanisms can be conserved across several different strains or can be unique for specific genera. Hence, this review attempts to review the state-of-the-art knowledge of mechanisms of stress response displayed by potential probiotic strains during their transit through the GIT. In addition, evidence whether stress responses can compromise the biosafety of such strains is also discussed.
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Affiliation(s)
- Cecilia Castro-López
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD), Gustavo Enrique Astiazarán Rosas 46, Hermosillo, Sonora, 83304, México
| | - Haydee E Romero-Luna
- Instituto Tecnológico Superior de Xalapa/Tecnológico Nacional de México, Reserva Territorial s/n Sección 5, Santa Bárbara, Xalapa-Enríquez, Veracruz, 91096, México
| | - Hugo S García
- Unidad de Investigación Y Desarrollo de Alimentos, Instituto Tecnológico de Veracruz/Tecnológico Nacional de México, Miguel Ángel de Quevedo 2779, Veracruz, Veracruz, 91897, México
| | - Belinda Vallejo-Cordoba
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD), Gustavo Enrique Astiazarán Rosas 46, Hermosillo, Sonora, 83304, México
| | - Aarón F González-Córdova
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD), Gustavo Enrique Astiazarán Rosas 46, Hermosillo, Sonora, 83304, México
| | - Adrián Hernández-Mendoza
- Laboratorio de Química y Biotecnología de Productos Lácteos, Centro de Investigación en Alimentación y Desarrollo A.C. (CIAD), Gustavo Enrique Astiazarán Rosas 46, Hermosillo, Sonora, 83304, México.
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11
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Chicas RC, Wang Y, Jennifer Weil E, Elon L, Xiuhtecutli N, C Houser M, Jones DP, M Sands J, Hertzberg V, McCauley L, Liang D. The impact of heat exposures on biomarkers of AKI and plasma metabolome among agricultural and non-agricultural workers. ENVIRONMENT INTERNATIONAL 2023; 180:108206. [PMID: 37734144 PMCID: PMC10637212 DOI: 10.1016/j.envint.2023.108206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/22/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND Agricultural workers are consistently exposed to elevated heat exposures and vulnerable to acute kidney injury. The underlying pathophysiology and detailed molecular mechanisms of AKI among agricultural workers, and the disproportionate burden of HRI and heat stress exposure are not well understood, especially at the level of cellular metabolism. OBJECTIVE The aim of this study was to examine the impact of heat exposures on renal biomarkers and on the human metabolome via untargeted high-resolution metabolomics among agricultural and non-agricultural workers. METHODS Blood and urine samples were collected pre- and post-work shift from 63 agricultural workers and 27 non- agricultural workers. We evaluated pre- and post-work shift renal biomarkers and completed untargeted metabolomics using high-resolution mass spectrometry with liquid chromatography. Metabolome-wide association studies (MWAS) models identified the metabolic features differentially expressed between agricultural workers and non-agricultural workers. RESULTS Median values of pre-shift creatinine and osteopontin (p < 0.05) were higher for agricultural workers than non-agricultural workers. Metabolic pathway enrichment analyses revealed 27 diverse pathways differed between agricultural workers and non-agricultural workers (p < 0.05) including TCA cycle and urea cycle, carbohydrate metabolism, histidine metabolism and evidence for altered microbiome shikimate pathway. CONCLUSION This is the first investigation on the metabolic pathways that are affected among agricultural workers who are exposed to heat compared to non-heat exposed workers. This study shows extensive responses of central metabolic systems to heat exposures that impact human health.
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Affiliation(s)
- Roxana C Chicas
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA.
| | - Yilin Wang
- Rollins School of Public Health, Gangarosa Department of Environmental Health, Emory University, Atlanta, GA, USA.
| | - E Jennifer Weil
- Division of Renal Medicine, Department of Medicine, Emory University, Atlanta, GA, USA.
| | - Lisa Elon
- Rollins School of Public Health, Gangarosa Department of Environmental Health, Emory University, Atlanta, GA, USA.
| | - Nezahualcoyotl Xiuhtecutli
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA; Farmworker Association of Florida, Apopka, FL, USA.
| | - Madelyn C Houser
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA.
| | - Dean P Jones
- Department of Medicine, Emory University, Atlanta, GA, USA.
| | - Jeff M Sands
- Division of Renal Medicine, Department of Medicine, Emory University, Atlanta, GA, USA.
| | - Vicki Hertzberg
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA.
| | - Linda McCauley
- Nell Hodgson Woodruff School of Nursing, Emory University, Atlanta, GA, USA.
| | - Donghai Liang
- Rollins School of Public Health, Gangarosa Department of Environmental Health, Emory University, Atlanta, GA, USA.
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12
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Batista P, Rodrigues Penas M, Vila-Real C, Pintado M, Oliveira-Silva P. Kombucha: Challenges for Health and Mental Health. Foods 2023; 12:3378. [PMID: 37761087 PMCID: PMC10530084 DOI: 10.3390/foods12183378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 08/30/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND Increasing research into probiotics is showing potential benefits for health in general and mental health in particular. Kombucha is a recent beverage and can be considered a probiotic drink, but little is known about its effects on physical and mental health. This product is experiencing growth in the market; however, there are no scientific results to support its potential for physical and mental health. AIM This review article aims to draw attention to this issue and to highlight the lack of studies in this area. KEY FINDINGS AND CONCLUSIONS The lack of legislation for the correct marketing of this product may also constrain clinical studies. However, clinical studies are of utmost importance for an in-depth understanding of the effects of this product on the human body. More research is needed, not only to better understand the impact of Kombucha on the human body, but also to ensure the application of regulatory guidelines for its production and marketing and enable its safe and effective consumption.
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Affiliation(s)
- Patrícia Batista
- Research Centre for Human Development, Human Neurobehavioural Laboratory, Universidade Católica Portuguesa, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal; (M.R.P.); (P.O.-S.)
- CBQF—Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal; (C.V.-R.); (M.P.)
| | - Maria Rodrigues Penas
- Research Centre for Human Development, Human Neurobehavioural Laboratory, Universidade Católica Portuguesa, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal; (M.R.P.); (P.O.-S.)
| | - Catarina Vila-Real
- CBQF—Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal; (C.V.-R.); (M.P.)
| | - Manuela Pintado
- CBQF—Centro de Biotecnologia e Química Fina, Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal; (C.V.-R.); (M.P.)
| | - Patrícia Oliveira-Silva
- Research Centre for Human Development, Human Neurobehavioural Laboratory, Universidade Católica Portuguesa, Rua de Diogo Botelho, 1327, 4169-005 Porto, Portugal; (M.R.P.); (P.O.-S.)
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13
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Beldowska A, Barszcz M, Dunislawska A. State of the art in research on the gut-liver and gut-brain axis in poultry. J Anim Sci Biotechnol 2023; 14:37. [PMID: 37038205 PMCID: PMC10088153 DOI: 10.1186/s40104-023-00853-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 02/12/2023] [Indexed: 04/12/2023] Open
Abstract
The relationship between the intestines and their microbiota, the liver, and the neuronal system is called the gut-liver-brain axis. This relationship has been studied and observed for a relatively short time but is considered in the development of research focused on, e.g., liver diseases and intestinal dysbiosis. The role of the gut microbiota in this relationship is crucial, as it acts on poultry's performance and feed utilization, affecting meat and egg quality. The correct composition of the intestinal microbiota makes it possible to determine the essential metabolic pathways and biological processes of the individual components of the microbiota, allowing further speculation of the role of microbial populations on internal organs such as the liver and brain in the organism. The gut microbiota forms a complex, dense axis with the autonomic and enteric nervous systems. The symbiotic relationship between the liver and gut microbiota is based on immune, metabolic and neuroendocrine regulation, and stabilization. On the other hand, the gut-brain axis is a bidirectional interaction and information transfer system between the gastrointestinal tract and the central nervous system. The following paper will discuss the current state of knowledge of the gut-liver-brain axis of poultry, including factors that may affect this complex relationship.
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Affiliation(s)
- Aleksandra Beldowska
- Department of Animal Biotechnology and Genetics, Bydgoszcz University of Science and Technology, Mazowiecka 28, Bydgoszcz, 85-084, Poland
| | - Marcin Barszcz
- Department of Animal Nutrition, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, Jabłonna, 05-110, Poland
| | - Aleksandra Dunislawska
- Department of Animal Biotechnology and Genetics, Bydgoszcz University of Science and Technology, Mazowiecka 28, Bydgoszcz, 85-084, Poland.
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Li L, Liu Z, Quan J, Sun J, Lu J, Zhao G. Dietary nano-selenium alleviates heat stress-induced intestinal damage through affecting intestinal antioxidant capacity and microbiota in rainbow trout (Oncorhynchus mykiss). FISH & SHELLFISH IMMUNOLOGY 2023; 133:108537. [PMID: 36639066 DOI: 10.1016/j.fsi.2023.108537] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
Heat stress-induced intestinal damage is a key event in fish pathology. Nano-selenium (nano-Se) shows remarkably high biological activity and low toxicity, making it an ideal and ecological Se formulation; however, to date, the protective effects of nano-Se against heat stress-induced intestinal injury and pertinent molecular mechanisms remain unknown. Herein, rainbow trout (Oncorhynchus mykiss) were fed either a basal diet or basal diet + 5 mg/kg nano-Se. Samples were collected before (18 °C for 9 days; CG18 and Se18 groups) and after (24 °C for 8 h; CG24 and Se24 groups) heat stress treatment. On heat stress exposure, intestinal villus height, muscularis thickness, and goblet cell number decreased, and expression of tight junction proteins (ZO-1, occludin, and claudin-8d) was downregulated; dietary supplementation with nano-Se alleviated these effects. Furthermore, in the presence of nano-Se, catalase activity was elevated, and expression of diverse heat shock proteins (Hsp70b, Hsp90α, and Hsp30), selenoproteins (Gpx1a, Gpx1b1, and Trx), and anti-inflammatory cytokine (TGF-β) was upregulated. In contrast, nano-Se supplementation significantly alleviated the increase of the expression of pro-inflammatory cytokines (IL-1β and TNF-α) and the malondialdehyde content. We also observed that heat stress markedly increased the relative abundance of Actinobacteria, Firmicutes, Methylobacterium, Akkermansia, and Deinococcus and decreased that of Proteobacteria; nano-Se supplementation restored these changes, making their distribution similar to that in the control group. Overall, our findings suggest that nano-Se plays a protective role against heat stress-induced intestinal damage in rainbow trout by promoting the recovery of antioxidant enzyme activity, enhancing protein repair, alleviating inflammatory responses, and restoring intestinal microbiota composition.
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Affiliation(s)
- Lanlan Li
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Zhe Liu
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China.
| | - Jinqiang Quan
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Jun Sun
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Junhao Lu
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China
| | - Guiyan Zhao
- College of Animal Science & Technology, Gansu Agricultural University, Lanzhou, 730070, PR China
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Liu S, Wen D, Feng C, Yu C, Gu Z, Wang L, Zhang Z, Li W, Wu S, Liu Y, Duan C, Zhuang R, Xue L. Alteration of gut microbiota after heat acclimation may reduce organ damage by regulating immune factors during heat stress. Front Microbiol 2023; 14:1114233. [PMID: 36910226 PMCID: PMC9995595 DOI: 10.3389/fmicb.2023.1114233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 02/06/2023] [Indexed: 02/25/2023] Open
Abstract
Introduction Heat-related illnesses can lead to morbidity, which are anticipated to increase frequency with predictions of increased global surface temperatures and extreme weather events. Although heat acclimation training (HAT) could prevent heat-related diseases, the mechanisms underlying HAT-promoting beneficial changes in organ function, immunity, and gut microbes remain unclear. Methods In the current study, we recruited 32 healthy young soldiers and randomly divided them into 4 teams to conduct HATs for 10 days: the equipment-assisted training team at high temperature (HE); the equipment-assisted training team under normal hot weather (NE); the high-intensity interval training team at high temperature (HIIT), and the control team without training. A standard heat tolerance test (HTT) was conducted before (HTT-1st) and after (HTT-2nd) the training to judge whether the participants met the heat acclimation (HA) criteria. Results We found that the participants in both HE and NE teams had significantly higher acclimation rates (HA/total population) than whom in the HIIT team. The effects of HAT on the participants of the HE team outperformed that of the NE team. In the HA group, the differences of physiological indicators and plasma organ damage biomarkers (ALT, ALP, creatinine, LDH, α-HBDH and cholinesterase) before and after HTT-2nd were significantly reduced to those during HTT-1st, but the differences of immune factors (IL-10, IL-6, CXCL2, CCL4, CCL5, and CCL11) elevated. The composition, metabolism, and pathogenicity of gut microbes changed significantly, with a decreased proportion of potentially pathogenic bacteria (Escherichia-Shigella and Lactococcus) and increased probiotics (Dorea, Blautia, and Lactobacillus) in the HA group. Training for a longer time in a high temperature and humidity showed beneficial effects for intestinal probiotics. Conclusion These findings revealed that pathogenic gut bacteria decrease while probiotics increase following HA, with elevated immune factors and reduced organ damage during heat stress, thereby improving the body's heat adaption.
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Affiliation(s)
- Shanshou Liu
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Dongqing Wen
- Air Force Medical Center, Fourth Military Medical University, Beijing, China
| | - Chongyang Feng
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chaoping Yu
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Zhao Gu
- Air Force Medical Center, Fourth Military Medical University, Beijing, China
| | - Liping Wang
- Air Force Medical Center, Fourth Military Medical University, Beijing, China
| | - Zhixiang Zhang
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Wenpeng Li
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Shuwen Wu
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Yitian Liu
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Chujun Duan
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Ran Zhuang
- Department of Immunology, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Lihao Xue
- Air Force Medical Center, Fourth Military Medical University, Beijing, China
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Garskaya N, Peretyatko L, Pozyabin S, Tresnitskiy S, Tresnitskiy A. Influence of heat stress on the reproduction rates of sows of the Poltava meat breed, depending on the genotype. BIO WEB OF CONFERENCES 2022. [DOI: 10.1051/bioconf/20224201026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The article deals with the issues of the influence of heat stress that occurs in the summer on the indicators characterizing the reproductive qualities. Purebred sows of tested Poltava meat breed of different genotypes were investigated: Group I - individuals-offspring obtained by the method of introductory crossing using the blood of early maturing meat breed (blood content 12.5 %), Group II - individuals obtained by the method of introductory crossing using the blood of the Finnish Landrace (blood content of 12.5 %). It was found that in sows of the Poltava meat breed with the blood of early maturing meat breed, the number of live piglets at birth significantly exceeds the indices of sows with the blood of the Finnish Landrace by 8.27 % at p≤0.05. According to the analysis of Cv, these natural and technological conditions had the greatest influence on the duration of the service period in sows of Group I. Wherein, the least influence of these natural and technological conditions was found for the indicator of the duration of pregnancy. Animals with the blood of an early maturing meat breed were more adaptable to these natural and technological conditions.
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