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Subpopulations of regulatory T cells are associated with subclinical atherosclerotic plaques,levels of LDL,and cardiorespiratory fitness in the elderly

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Journal of Sport and Health Science 2024年第3期13卷 288-296,I0002页

作者： Tim Böttrich Pascal Bauer Vincent Gröβer Magdalena Huber Hartmann Raifer Torsten Frech Svenja Nolte Theresa Dombrowski Franz Cemic Natascha Sommer Robert Ringseis klaus.eder Karsten Krüger Christopher Weyh Department of Exercise Physiology and Sports Therapy Institute of Sports ScienceJustus-Liebig-UniversityGiessen 35394Germany Department of Cardiology and Angiology Justus-Liebig-University GiessenGiessen 35392Germany Institute for Systems Immunology Center for Tumor und ImmunologyMarburg 35032Germany TH Mittelhessen Department of Computer ScienceUniversity of Applied Sciences GiessenGiessen 35390Germany Department of Internal Medicine Universities of Giessen and Marburg Lung Center(UGMLC)Member of the German Center for Lung Research(DZL)Giessen 35394Germany Excellence Cluster Cardio-Pulmonary Institute(CPI) Justus-Liebig UniversityGiessen 35394Germany Institute of Animal Nutrition and Nutrition Physiology Justus-Liebig-University GiessenGiessen 35390Germany

Background:Atherosclerosis forms the pathological basis for the development of cardiovascular *** pathological processes initially develop without clinically relevant symptoms,the identification of early markers in the subclinical stage plays an important role for initiating early *** is evidence that regulatory T cells(Tregs)are involved in the development of ***,the present study aimed to identify and investigate associations with Tregs and their subsets in a cohort of healthy elderly individuals with and without subclinical atherosclerotic plaques(SAP).In addition,various lifestyle and risk factors,such as cardiorespiratory fitness,were investigated as associated ***:A cross-sectional study was performed in 79 participants(male:n=50;age=63.6±3.7 years;body mass index=24.9±3.1 kg/m2;mean±SD)who had no previous diagnosis of chronic disease and were not taking *** of the carotids to identify SAP,cardiovascular function measurement for vascular assessment and a cardiorespiratory fitness test to determine peak oxygen uptake were ***,tests were conducted to assess blood lipids and determine glucose *** of Tregs and their subtypes(resting(rTregs)and effector/memory(mTregs))was performed by 8-chanel flow *** were categorized according to atherosclerotic plaque *** and logistic regression models were used to analyze associations between ***:SAP was detected in a total of 29 *** participants with plaque were older(64.8±3.6 years vs.62.9±3.5 years)and had higher peripheral systolic blood pressure(133.8±14.7 mmHg vs.125.8±10.9 mmHg).The participants with SAP were characterized by a lower percentage of rTregs(28.8%±10.7%vs.34.6%±10.7%)and a higher percentage of mTregs(40.3%±14.7%vs.30.0%±11.9%).Multiple logistic regression identified age(odds ratio(OR)=1.20(95%confidence interval(95%CI):1.011.42))and

关键词： Cardiorespiratory fitness Elderly Regulatory T cells Subclinical atherosclerosis

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Heat stress in pigs and broilers:role of gut dysbiosis in the impairment of the gut-liver axis and restoration of these effects by probiotics,prebiotics and synbiotics

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Journal of Animal Science and Biotechnology 2023年第2期14卷 465-480页

作者： Robert Ringseis klaus.eder Institute of Animal Nutrition and Nutrition Physiology Justus-Liebig-University GiessenHeinrich‑Buff‑Ring 26‑3235392 GiessenGermany

Heat stress is one of the most challenging stressors for animal production due to high economic losses resulting from impaired animal’s productivity,health and *** the fact that all farm animal species are susceptible to heat stress,birds and pigs are particularly sensitive to heat stress due to either lacking or non-functional sweat ***-vincing evidence in the literature exists that gut dysbiosis,a term used to describe a perturbation of commensal gut microbiota,develops in broilers and pigs under heat *** to the protective role of commensal bacteria for the gut barrier,gut dysbiosis causes a disruption of the gut barrier leading to endotoxemia,which contributes to the typical characteristics of heat stressed broilers and growing and growing-finishing pigs,such as reduced feed intake,decreased growth and reduced lean carcass weight.A substantial number of studies have shown that feeding of probiotics,prebiotics and synbiotics is an efficacious strategy to protect broilers from heat stress-induced gut barrier disruption through altering the gut microbiota and promoting all decisive structural,biochemical,and immunologi-cal elements of the intestinal *** most of the available studies in heat stressed broilers,the alterations of gut microbiota and improvements of gut barrier function induced by feeding of either probiotics,prebiotics or synbiot-ics were accompanied by an improved productivity,health and/or welfare when compared to non-supplemented broilers exposed to heat *** findings indicate that the restoration of gut homeostasis and function is a key target for dietary interventions aiming to provide at least partial protection of broilers from the detrimental impact of heat stress *** the fact that the number of studies dealing with the same feeding strategy in heat stressed pigs is limited,the available few studies suggest that feeding of probiotics might also be a suitable approach to enhance productivi

关键词： Broilers Commensal bacteria Gut dysbiosis Heat stress Pigs Prebiotics Probiotics Synbiotics

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Fibroblast growth factor 21 in dairy cows:current knowledge and potential relevance

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Journal of Animal Science and Biotechnology 2022年第2期13卷 303-315页

作者： klaus.eder Denise K.Gessner Robert Ringseis Institute of Animal Nutrition and Nutrition Physiology Justus-Liebig-University GiessenHeinrich-Buff-Ring 26-3235392 GiessenGermany

Fibroblast growth factor 21(FGF21)has been identified as an important regulator of carbohydrate and lipid metabolism,which plays an important role for metabolic regulation,particularly under conditions of energy deprivation or stress *** cows are subjected to a negative energy balance and various kinds of stress particularly during the periparturient phase and during early *** has been shown that the plasma concentration of FGF21 in dairy cows is dramatically increased at parturition and remains high during the first weeks of *** finding suggests that FGF21 might exert similar functions in dairy cows than in other species,such as mice or ***,the role of FGF21 in dairy cows has been less investigated so *** a brief summary of the previous findings about the function of FGF21 in humans and mice,the present review aims to present the current state of knowledge about the role of FGF21 in dairy *** first part of the review deals with the tissue localization of FGF21 and with conditions leading to an upregulation of FGF21 expression in the liver of dairy *** the second part,the influence of nutrition on FGF21 expression and the role of FGF21 for metabolic diseases in dairy cows is *** the third part,findings of exogenous FGF21 application on metabolism in dairy cows are ***,the potential relevance of FGF21 in dairy cows is *** is concluded that FGF21 might be of great importance for metabolic adaptation to negative energy balance and stress conditions in dairy ***,further studies are needed for a better understanding of the functions of FGF21 in dairy cows.

关键词： Dairy cow Energy deprivation Fibroblast growth factor 21 Metabolic adaptation Stress

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Effects of supplementation of green tea extract on the milk performance of peripartal dairy cows and the expression of stress response genes in the liver

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Journal of Animal Science and Biotechnology 2020年第4期11卷 1163-1174页

作者： Denise K.Gessner Corinna Brock Lena M.Hof Erika Most Christian Koch klaus.eder Institute of Animal Nutrition and Nutrition Physiology Justus-Liebig-University GiessenHeinrich-Buff-Ring 26-3235392 GiessenGermany Educational and Research Centre for Animal Husbandry Hofgut Neumühle67728 Münchweiler an der AlsenzGermany.

Background: We hypothesised that supplementation of green tea extract(GTE) in dairy cows during the transition period can attenuate proinflammatory conditions and prevent endoplasmic reticulum(ER) stress in the liver of these cows. Thirty Holstein cows with an average parity of 3.06(± 1.31, SD) were divided into a control group and a group that received a daily amount of 10 g of GTE from d 7 before the calving day and a daily amount of 20 g of GTE from the day of calving until d 7 of ***: Cows supplemented with GTE did not show differences in energy intake or milk yield in weeks 2–7 of lactation. However, these cows had a lower milk fat concentration and a lower energy corrected milk yield than the control cows and showed a trend of improved energy balance. The relative m RNA concentrations of proinflammatory genes, genes involved in the acute phase reaction and antioxidant genes in the liver in weeks 1, 4 and 7 of lactation were not different between the two groups of cows. The concentrations of α-tocopherol and the Trolox equivalent antioxidant capacity in plasma were not different between the two groups. However, the group supplemented with GTE showed significant reductions of some genes of the unfolded protein response(UPR) in week 1 and a trend of lower liver triacylglycerol(TAG) concentrations in the liver compared to the control ***: This study shows that supplementation of GTE in dairy cows lowers the fat concentration in the milk but overall has no effect on the expression of inflammatory genes and the antioxidative status in dairy cows during early lactation. The finding of reduced m RNA levels of genes involved in the UPR at week 1, however, supports other results showing that supplementation of polyphenols could prevent the development of ER stress in the liver of cows during early lactation. The finding of a tendency towards a reduced TAG concentration in the liver of cows supplemented with GTE might be due to an improved ene

关键词： Animal nutrition Cow Green tea extract Liver Metabolism Milk performance

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Effect of replacement of soybean oil by Hermetia illucens fat on performance,digestibility,cecal microbiome,liver transcriptome and liver and plasma lipidomes of broilers

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Journal of Animal Science and Biotechnology 2023年第4期14卷 1466-1484页

作者： Lea Schäfer Sarah M.Grundmann Garima Maheshwari Marcus Höring Gerhard Liebisch Erika Most klaus.eder Robert Ringseis Institute of Animal Nutrition and Nutrition Physiology Justus Liebig University GiessenHeinrich-Buff-Ring 26-3235392 GiessenGermany Institute of Nutritional and Food Sciences Molecular Food TechnologyUniversity of BonnFriedrich-Hirzebruch-Allee 753115 BonnGermany Institute of Clinical Chemistry and Laboratory Medicine University Hospital of RegensburgFranz-Josef-Strauss-Allee 1193053 RegensburgGermany.

Background In contrast to protein-rich insect meal,the feed potential of insect fat is generally less explored and knowledge about the suitability of insect fat as a fat source specifically in broiler diets is still *** view of this,the present study aimed to comprehensively investigate the effect of partial(50%) and complete replacement of soybean oil with insect fat from Hermetia illucens(HI) larvae in broiler diets on performance,fat digestibility,cecal microbiome,liver transcriptome and liver and plasma ***,100 male,1-day-old Cobb 500 broilers were randomly assigned to three groups and fed three different diets with either 0(group HI-0,n cens(HI) larvae fat for 35 d.= 30),2.5%(group HI-2.5,n %(HI-5.0,n = 35) or 5.0= 35) Hermetia illuResults Body weight gain,final body weight,feed intake,and feed:gain ratio during the whole period and apparent ileal digestibility coefficient for ether extract were not different between *** microbial diversity did not differ between groups and taxonomic analysis revealed differences in the abundance of only four low-abundance bacterial taxa among groups;the abundances of phylum Actinobacteriota,class Coriobacteriia,order Coriobacteriales and family Eggerthellaceae were lower in group HI-5.0 compared to group HI-2.5(P < 0.05).Concentrations of total and individual short-chain fatty acids in the cecal digesta were not different between the three *** transcriptomics revealed a total of 55 and 25 transcripts to be differentially expressed between groups HI-5.0 ***-0 and groups HI-2.5 ***-0,respectively(P < 0.05).The concentrations of most lipid classes,with the exception of phosphatidylethanolamine,phosphatidylglycerol and lysophosphatidylcholine in the liver and cholesterylester and ceramide in plasma(P < 0.05),and of the sum of all lipid classes were not different between *** Partial and complete replacement of soybean oil with HI larvae fat in broiler diets had no effect on gro

关键词： Broilers Cecal microbiota Hermetia illucens Insect fat Liver lipidome Medium-chain fatty acids

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Comprehensive evaluation of the metabolic effects of insect meal from Tenebrio molitor *** growing pigs by transcriptomics, metabolomics and lipidomics

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Journal of Animal Science and Biotechnology 2020年第2期11卷 527-544页

作者： Sandra Meyer Denise K.Gessner Maria S.Braune Theresa Friedhoff Erika Most Marcus Höring Gerhard Liebisch Holger Zorn klaus.eder Robert Ringseis Institute of Animal Nutrition and Nutrition Physiology Justus Liebig University GiessenHeinrich-Buff-Ring 26-3235392 GiessenGiessenGermany Institute of Clinical Chemistry and Laboratory Medicine University Hospital of RegensburgFranz-Josef-Strauss-Allee 1193053 RegensburgGermany Institute of Food Chemistry and Food Biotechnology Justus Liebig University GiessenHeinrich-Buff-Ring 1735392 GiessenGiessenGermany Fraunhofer Institute for Molecular Biology and Applied Ecology Winchester Str.235394 GiessenGiessenGermany

Background:The hypothesis was tested that insect meal(IM)as protein source influences intermediary metabolism of growing *** test this,30 male,5-week-old crossbred pigs were randomly assigned to 3 groups of 10 pigs each with similar body weights(BW)and fed isonitrogenous diets either without(CON)or with 5%IM(IM5)or 10%IM(IM10)from Tenebrio molitor *** 4 weeks and key metabolic tissues(liver,muscle,plasma)were analyzed using ***:Most performance parameters did not differ across the groups,whereas ileal digestibilities of most amino acids were 6.7 to 15.6%-units lower in IM10 than in CON(P<0.05).Transcriptomics of liver and skeletal muscle revealed a total of 166 and 198,respectively,transcripts differentially expressed between IM10 and CON(P<0.05).Plasma metabolomics revealed higher concentrations of alanine,citrulline,glutamate,proline,serine,tyrosine and valine and a lower concentration of asparagine in IM10 than in CON(P<0.05).Only one out of fourteen quantifiable amino acid metabolites,namely methionine sulfoxide(MetS),in plasma was elevated by 45%and 71%in IM5 and IM10,respectively,compared to CON(P<0.05).Plasma concentrations of both,major carnitine/acylcarnitine species and bile acids were not different across *** of liver and plasma demonstrated no differences in the concentrations of triacylglycerols,cholesterol and the main phospholipids,lysophospholipids and sphingolipids between *** percentages of all individual phosphatidylcholine(PC)and phosphatidylethanolamine(PE)species in the liver showed no differences between groups,except those with 6 double bonds(PC 38:6,PC 40:6,PE 38:6,PE 40:6),which were markedly lower in IM10 than in CON(P<0.05).In line with this,the percentage of C22:6n-3 in hepatic total lipids was lower in IM10 than in the other groups(P<0.05).Conclusions:Comprehensive analyzes of the transcriptome,lipidome and metabolome of key metabolic tissues indicate that partial or complete replacement o

关键词： Animal nutrition Insect meal Lipidome Liver Metabolism Metabolome Pigs Plasma Skeletal muscle Transcriptome

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L-肉碱对母猪代谢和生产性能的影响

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饲料与畜牧（新饲料） 2011年第2期 19-24页

作者： klaus.eder 付胜勇不详中国农业科学院饲料研究所

近年来,L-肉碱(L-carnitine,CN)作为饲料添加剂在畜禽饲粮中应用越来越多,文章综述了饲粮添加CN对母猪繁殖性能影响的研究。有关妊娠母猪饲粮添加CN对窝产仔数影响的研究结果间存在较大差异,有研究认为能提高窝产活仔数,而另一些研究则... 详细信息

近年来,L-肉碱(L-carnitine,CN)作为饲料添加剂在畜禽饲粮中应用越来越多,文章综述了饲粮添加CN对母猪繁殖性能影响的研究。有关妊娠母猪饲粮添加CN对窝产仔数影响的研究结果间存在较大差异,有研究认为能提高窝产活仔数,而另一些研究则认为不能。但研究一致表明,在含低水平天然肉碱的妊娠母猪饲粮中添加CN能提高仔猪个体及窝初生重并促进哺乳仔猪的生长。CN促进宫内发育的生化机制尚未完全阐明。但有证据显示,它能影响胰岛素样生长因子轴,从而促进较大胎盘的形成,进而提高宫体内部营养和刺激胎儿体内葡萄糖氧化,这些机制可部分解释为仔猪初生重的提高。CN对哺乳仔猪的生长刺激效应,可能是因CN补充改善母猪所产仔猪的吸吮行为造成,这种吸吮行为的改善可提高母猪产奶量。总之,近期众多研究表明,饲粮补充CN能提高母猪繁殖性能,妊娠母猪内源肉碱合成量不能满足其代谢需要。

关键词： L-肉碱母猪窝产仔数新陈代谢生产性能

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Heat stress in pigs and broilers: role of gut dysbiosis in the impairment of the gut-liver axis and restoration of theseeffects by probiotics, prebiotics and synbiotics

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畜牧与生物技术杂志(英文版) 2023年第2期

作者： Robert Ringseis klaus.eder

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Fibroblast growth factor 21 in dairy cows: current knowledge and potential relevance.

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畜牧与生物技术杂志(英文版) 2022年第2期

作者： klaus.eder Denise K.Gessner and Robert Ringseis

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Effects of supplementation of green tea extract on the milk performance of peripartal dairy cows and the expressionof stress response genes in the liver.

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畜牧与生物技术杂志(英文版) 2020年第4期

作者： Denise K.Gessner Corinna Brock Lena M.Hof Erika Most Christian Koch klaus.eder

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