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Effects of maternal methyl donor intake during pregnancy on ileum methylation and function in an intrauterine growth restriction pig model

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Journal of Animal Science and Biotechnology 2024年第3期15卷 1173-1189页

作者： Yan Lin Jiangnan Wu Yong Zhuo Bin Feng Zhengfeng Fang shengyu xu Jian Li Hua Zhao De Wu Lun Hua Lianqiang Che Key Laboratory of Animal Disease‑Resistance Nutrition Animal Nutrition InstituteSichuan Agricultural UniversityChengdu 611130SichuanChina

Background Intrauterine growth retardation(IUGR)affects intestinal growth,morphology,and function,which leads to poor growth performance and high *** present study explored whether maternal dietary methyl donor(MET)supplementation alleviates IUGR and enhances offspring’s growth performance by improving intestinal growth,function,and DNA methylation of the ileum in a porcine IUGR *** Forty multiparous sows were allocated to the control or MET diet groups from mating until *** farrowing,8 pairs of IUGR and normal birth weight piglets from 8 litters were selected for sampling before suckling *** The results showed that maternal MET supplementation tended to decrease the IUGR incidence and increased the average weaning weight of ***,maternal MET supplementation significantly reduced the plasma concentrations of isoleucine,cysteine,urea,and total amino acids in sows and newborn *** also increased lactase and sucrase activity in the jejunum of newborn *** addition resulted in lower ileal methionine synthase activity and increased betaine homocysteine S-methyltransferase activity in the ileum of newborn *** methylation analysis of the ileum showed that MET supplementation increased the methyla-tion level of DNA CpG sites in the ileum of newborn ***-regulated differentially methylated genes were enriched in folic acid binding,insulin receptor signaling pathway,and endothelial cell *** contrast,up-regulated methylated genes were enriched in growth hormone receptor signaling pathway and nitric oxide biosyn-thetic *** Maternal MET supplementation can reduce the incidence of IUGR and increase the weaning litter weight of piglets,which may be associated with better intestinal function and methylation status.

关键词： Ileum Intrauterine growth restriction Methyl donor Methylation Sows

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Standardized ileal digestibility of amino acids in soybean meal fed to non-pregnant and pregnant sows

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Journal of Animal Science and Biotechnology 2024年第1期15卷 362-373页

作者： Ke Wang Ya Wang Lei Guo Yong Zhuo Lun Hua Lianqiang Che shengyu xu Ruinan Zhang Jian Li Bin Feng Zhengfeng Fang xuemei Jiang Yan Lin De Wu Institute of Animal Nutrition Key Laboratory for Animal Disease‑Resistance Nutrition of ChinaMinistry of EducationSichuan Agricultural University211 Huimin RoadWenjiang DistrictChengdu 611130SichuanChina

Background Two studies were designed to determine standard ileal crude protein(CP)and amino acid(AA)digestibility of soybean meal(SBM)from different origins fed to non-pregnant and pregnant *** solvent-extracted SBMs from soybeans produced in the USA,Brazil,and China were *** Exp.1,eight different diets were created:a nitrogen(N)-free diet and 7 experimental diets containing SBM from different origins as the only N *** non-pregnant,multiparous sows were arranged in an 8×8 Latin square design(8 periods and 8 diets).In Exp.2,the diet formula was the same as in *** gestating sows(parity 3)were assigned to 4 different diets in a replicated 4×3 Youden square design(three periods and four diets)in mid-gestation and again in late-gestation *** When fed to non-pregnant and late-gestating sows,the standardized ileal digestibility(SID)of CP and most AAs from different SBM were not significantly different(P>0.05).When fed to mid-gestating sows,the SID values for Arg,His,Lys,Phe,Cys,Gly,Ser,and Tyr in SBM 1 were lower than in SBM 4 and 5(P<0.05),whereas SID for Leu from SBM 5 was higher than in SBM 1 and 4(P<0.05).SID values for Ile,Ala,and Asp from SBM 4 were lower than in SBM 1 and 5(P<0.05).Sows had significantly greater SID values for Lys,Ala,and Asp during mid-gestation when compared with late-gestation stages(P<0.05).Mid-gestating sows had greater SID value for Val and lower SID value for Tyr when compared with non-pregnant and late-gestating sows(P<0.01),whereas non-pregnant sows had significantly greater SID value for Met when compared with gestating sows(P<0.01).Conclusions When fed to mid-gestating sows,the SID values for most AAs varied among SBM *** SID values for Lys,Met,Val,Ala,Asp,and Tyr in SBM were affected by sow gestation *** findings provide a cornerstone for accurate SBM use in sow diets.

关键词： Amino acids Sows Soybean meal Standardized ileal digestibility

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Identification of Epsin1 as a regulator for hepatic lipid and glucose metabolism

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Genes & Diseases 2023年第1期10卷 72-75页

作者： Xiaohua Huang Long Jin Zhengfeng Fang Lianqiang Che Yan Lin shengyu xu Yong Zhuo Mingzhou Li De Wu Bin Feng Animal Nutrition Institute Sichuan Agricultural UniversityChengduSichuan 611130China Key Laboratory of Animal Disease-Resistant Nutrition of Ministry of Education Sichuan Agricultural UniversityChengduSichuan 611130China College of Animal Science Sichuan Agricultural UniversityChengduSichuan 611130China

Obesity related non-alcoholic fatty liver disease(NAFLD),which can progress to steatohepatitis and insulin resistance,has become a major chronic liver disease worldwide.1 As an adaptor of clathrin-mediated endocytosis... 详细信息

关键词： metabolism healing wound

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Comparative effects of enzymatic soybean,fish meal and milk powder in diets on growth performance,immunological parameters,SCFAs production and gut microbiome of weaned piglets

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Journal of Animal Science and Biotechnology 2022年第2期13卷 567-577页

作者： Yingjie Li Yang Liu Jiangnan Wu Qiuhong Chen Qiang Zhou Fali Wu Ruinan Zhang Zhengfeng Fang Yan Lin shengyu xu Bin Feng Yong Zhuo De Wu Lianqiang Che Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education Institute of Animal NutritionSichuan Agricultural UniversityNo.211Huimin RoadWenjiang DistrictChengdu 611130SichuanPeople’s Republic of China

Background:The objective of this study was to evaluate the replacement effects of milk powder(MK)and fish meal(FM)by enzymatic soybean(ESB)in diets on growth performance,immunological parameters,SCFAs production and gut microbiome of weaned ***:A total of 128 piglets with initial body weight at 6.95±0.46 kg,were randomly assigned into 4 dietary treatments with 8 replicates per treatment and 4 piglets per replicate for a period of 14 *** were offered isonitrogenous and iso-energetic diets as follows:CON diet with MK and FM as high quality protein sources,ESB plus FM diet with ESB replacing MK,ESB plus MK diet with ESB replacing FM,and ESB diet with ESB replacing both MK and ***:No significant differences were observed in growth performance among all treatments(P>0.05).However,piglets fed ESB plus FM or ESB diet had increased diarrhea index(P<0.01),and lower digestibility of dry matter(DM),gross energy(GE)or crude protein(CP),relative to piglets fed CON diet(P<0.01).Moreover,the inclusion of ESB in diet markedly decreased the plasma concentration of HPT and fecal concentration of butyric acid(BA)(P<0.01).The High-throughput sequencing of 16S rRNA gene V3−V4 region of gut microbiome revealed that the inclusion of ESB in diet increased the alpha diversity,and the linear discriminant analysis effect size(LEfSe)showed that piglets fed with ESB plus FM or ESB diet contained more gut pathogenic bacteria,such as g_Peptococcus,g_Veillonella and g_***:The inclusion of ESB in diet did not markedly affect growth performance of piglets,but the replacement of MK or both MK and FM by ESB increased diarrhea index,which could be associated with lower nutrients digestibility and more gut pathogenic ***,piglets fed diet using ESB to replace FM did not markedly affect gut health-related parameters,indicating the potential for replacing FM with ESB in weaning diet.

关键词： Enzymatic soybean Growth performance Gut microbiome Immunology SCFAs Weaned piglets

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Microbial and metabolomic mechanisms mediating the effects of dietary inulin and cellulose supplementation on porcine oocyte and uterine development

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Journal of Animal Science and Biotechnology 2022年第3期13卷 907-922页

作者： Zhaoyue Men Meng Cao Yuechan Gong Lun Hua Ruihao Zhang Xin Zhu Lianchao Tang xuemei Jiang shengyu xu Jian Li Lianqiang Che Yan Lin Bin Feng Zhengfeng Fang De Wu Yong Zhuo Animal Nutrition Institute Sichuan Agricultural University211 Huimin RoadWenjiang DistrictChengdu 611130People’s Republic of China College of Animal Science and Technology Sichuan Agricultural UniversityChengdu 611130People’s Republic of China

Background:Dietary fiber(DF)is often eschewed in swine diet due to its anti-nutritional effects,but DF is attracting growing attention for its reproductive *** objective of this study was to investigate the effects of DF intake level on oocyte maturation and uterine development,to determine the optimal DF intake for gilts,and gain microbial and metabolomic insight into the underlying mechanisms ***:Seventy-six Landrace×Yorkshire(LY)crossbred replacement gilts of similar age(92.6±0.6 d;mean±standard deviation[SD])and body weight(BW,33.8±3.9 kg;mean±SD)were randomly allocated to 4 dietary treatment groups(n=19);a basal diet without extra DF intake(DF 1.0),and 3 dietary groups ingesting an extra50%(DF 1.5),75%(DF 1.75),and 100%(DF 2.0)dietary fiber mixture consisting of inulin and cellulose(1:4).Oocyte maturation and uterine development were assessed on 19 d of the 2nd oestrous *** diversity of faecal samples was analysed by high-throughput pyrosequencing(16S r RNA)and blood samples were subjected to untargeted ***:The rates of oocytes showing first polar bodies after in vitro maturation for 44 h and uterine development increased linearly with increasing DF intake;DF 1.75 gilts had a 19.8%faster oocyte maturation rate and a 48.9 cm longer uterus than DF 1.0 gilts(P0.1%)increased linearly or quadratically with increasing DF *** metabolic analysis revealed significant changes in serum metabolites that were closely associated with microbiota,including serotonin,a gut-derived signal that stimulates oocyte ***:The findings provide evidence of the benefits of increased DF intake by supplementing inulin and cellulose on oocyte maturation and uterine development in gilts,and new microbial and metabolomic i

关键词： Dietary fiber Gilts Metabolomics Microbiota Oocyte maturation

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Maternal organic selenium supplementation during gestation enhances muscle fiber area and muscle fiber maturation of offspring in porcine model

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Journal of Animal Science and Biotechnology 2023年第2期14卷 654-665页

作者： Yan Lin Hui Yan Lei Cao Daolin Mou Dajiang Ding Binting Qin Lianqiang Che Zhengfeng Fang shengyu xu Yong Zhuo Jian Li Jianping Wang Chao Huang Yuanfeng Zou Lixia Li De Wu Bin Feng Animal Nutrition Institute Sichuan Agricultural UniversityChengduChina Key Laboratory of Animal Disease‑Resistant Nutrition of Ministry of Education Sichuan Agricultural UniversityChengduChina College of Veterinary Medicine Sichuan Agricultural UniversityChengdu 611130SichuanChina

Background:Organic selenium supplementation during gestation improves the antioxidant status and reproduc-tive performance of sows and increases the antioxidative capacity of the intestines of their *** study was conducted to investigate the effect of maternal basel diet(control)supplemented with an organic Se,2-hydroxy-4-methylselenobutanoic acid(HMSeBA),or inorganic sodium selenite(Na_(2)SeO_(3))during gestation on the antioxidant status and development of muscle in newborn and weaned *** piglets before colostrum intake and weaned piglets were selected for longissimus dorsi(LD)muscle collection and ***:The results showed that maternal HMSeBA supplementation increased the muscle area and content of Se in the LD muscle of newborn piglets,improved gene expression of selenoproteins,and decreased oxidative status in the LD muscle of both newborn and weaned piglets compared with the *** expression of muscle development-related genes of newborn piglets in the HMSeBA group was lower than in the control group,whereas the expression of MRF4 in weaned piglets was higher in the HMSeBA group than in the control and Na_(2)SeO_(3)*** addition,HMSeBA supplementation decreased the mRNA expressions of myosin heavy chains(MyHC)IIx and MyHC IIb and the percentage of MyHC IIb;increased the expression of PGC-1αin the LD muscle of newborn piglets;increased the gene expression of MyHC IIa;and decreased the protein expression of slow MyHC and the activity of malate dehydrogenase in the LD muscle of weaned piglets compared with the control ***:Maternal HMSeBA supplementation during gestation can improve the antioxidative capacity of the muscle of their offspring and promote the maturity of muscle fibres in weaned offspring.

关键词： Antioxidation HMSeBA Muscle Offspring Sows

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Effects of dietary supplementation with essential oils and protease on growth performance,antioxidation,inflammation and intestinal function of weaned pigs

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Animal Nutrition 2022年第2期9卷 39-48页

作者： Xie Peng Qiang Zhou Cheng Wu Jian Zhao Quan Tan Ying He Liang Hu Zhengfeng Fang Yan Lin shengyu xu Bin Feng Jian Li Yong Zhuo Chris Van Ginneken xuemei Jiang De Wu Lianqiang Che Key Laboratory for Animal Disease Resistance Nutrition of the Ministry of Education Animal Nutrition InstituteSichuan Agricultural UniversityChengdu 611130China Novus International Trading(Shanghai)Co. Ltd.Shanghai 200080China College of Food Science Sichuan Agricultural UniversityYa'an 625014China Laboratory of Applied Veterinary Morphology Department of Veterinary SciencesFaculty of PharmaceuticalBiomedical and Veterinary SciencesUniversity of AntwerpUniversiteitsplein 1Wilrijk 2610Belgium

This experiment evaluated the impacts of essential oils(EO)and protease(PRO),independently or in combination,on growth performance,antioxidation,inflammation and intestinal function of weaned *** hundred and sixty weaned pigs(21 d of age,BW of 6.74±0.20 kg)were randomly divided into 4 treatments with 8 replicate pens of 5 pigs per *** treatments included the following:1)control diet(CON),2)CON with 300 mg/kg essential oils(EO),3)CON with 500 mg/kg protease(PRO),4)CON with 300 mg/kg essential oil and 500 mg/kg protease(EO + PRO).On d 8,one pig from each penwas selected for *** remaining pigs were fed for an additional week and growth performance was monitored during this *** treatments had no marked effects(P>0.05)on the growth performance of ***,pigs receiving EO diet had higher(P<0.05)serumglutathione peroxidase(GSH-Px)activity,and tended to decrease(P=0.063)serum concentration of tumor necrosis factor-a(TNF-a).In addition,pigs receiving EO diet had higher(P<0.05)abundances of phylum Actinobacteria,and genera Bifidobacterium,and lower(P<0.05)phylum Bacteroidetes and genera Alloprevotella in colonic *** receiving PRO diet decreased(P<0.05)the serum concentration of malondialdehyde(MDA)and diamine oxidase activity,increased(P<0.05)the villus height and the ratio of villus height to crypt depth in duodenum,increased sucrase activity in jejunal mucosa,and also increased the abundance of phylum Actinobacteria in colonic ***,the synergistic effects of EO and PROwas observed(P<0.05)for pigs with decreasing serum TNF-a concentration and increasing serum GSH-Px ***,the results indicated that dietary supplementation of EO and PRO had no significant effects on growth performance of weaned *** diet appeared to improve antioxidant activity and intestinal microbiota,while PRO diet improved intestinal morphology and digestive enzyme activity,and there was a synergistic effect of EO and PRO on

关键词： Essential oil Immune response Intestinal health Oxidative stress Protease Weaned pig

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Dietary fiber during gestation improves lactational feed intake of sows by modulating gut microbiota

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畜牧与生物技术杂志:英文版 2023年第5期14卷 2012-2032页

作者： Shuang Li Jie Zheng Jiaqi He Hao Liu Yingyan Huang Liansu Huang Ke Wang Xilun Zhao Bin Feng Lianqiang Che Zhengfeng Fang Jian Li shengyu xu Yan Lin xuemei Jiang Lun Hua Yong Zhuo De Wu Key Laboratory for Animal Disease‑Resistance Nutrition of China Ministry of Education Institute of Animal NutritionSichuan Agricultural UniversityNo.211Huimin RoadWenjiang DistrictChengdu 611130SichuanPeople’s Republic of China

Background The feed intake of sows during lactation is often lower than their ***-fiber feed is usually used during gestation to increase the voluntary feed intake of sows during ***,the mechanism underlying the effect of bulky diets on the appetites of sows during lactation have not been fully *** current study was conducted to determine whether a high-fiber diet during gestation improves lactational feed intake(LFI)of sows by modulating gut *** We selected an appropriate high-fiber diet during gestation and utilized the fecal microbial transplanta-tion(FMT)method to conduct research on the role of the gut microbiota in feed intake regulation of sows during lactation,as follows:high-fiber(HF)diet during gestation(n=23),low-fiber(LF)diet during gestation(n=23),and low-fiber diet+HF-FMT(LFM)during gestation(n=23).Results Compared with the LF,sows in the HF and LFM groups had a higher LFI,while the sows also had higher peptide tyrosine tyrosine and glucagon-like peptide 1 on d 110 of gestation(G110 d).The litter weight gain of piglets during lactation and weaning weight of piglets from LFM group were higher than LF *** given a HF diet had lower Proteobacteria,especially Escherichia-Shigella,on G110 d and higher Lactobacillus,especially Lactobacil-lus_mucosae_LM1 and Lactobacillus_amylovorus,on d 7 of lactation(L7 d).The abundance of Escherichia-Shigella was reduced by HF-FMT in numerically compared with the *** addition,HF and HF-FMT both decreased the perinatal concentrations of proinflammatory factors,such as endotoxin(ET),lipocalin-2(LCN-2),tumor necrosis factor-α(TNF-α),and interleukin-1β(IL-1β).The concentration of ET and LCN-2 and the abundance of Proteobacteria and Escheri-chia-Shigella were negatively correlated with the LFI of *** The high abundance of Proteobacteria,especially Escherichia-Shigella of LF sows in late gestation,led to increased endotoxin levels,which result in inflammatory resp

关键词： Dietary fiber Escherichia-Shigella Feed intake Lactobacillus Sow

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Real-world insights for the evolving intervention strategy for non-mild acute pancreatitis: 35-year experience in a Chinese Tertiary Center

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胰腺病学杂志(英文) 2024年第2期07卷 111-118页

作者： Yan Xiaxiao Zhou Jingya Cao Jian xu Qiang Han Xianlin Wang Duan Zhang shengyu Wu Dong Department of Gastroenterology Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China State Key Laboratory of Complex Severe and Rare Diseases Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China Department of Medical Records Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China WHO Family of International Classifications Collaborating Center of China Beijing China Department of Radiology Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China Department of General Surgery Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China

Background: With the accumulation of experience and evidence, guidelines for invasive intervention for acute pancreatitis (AP) have continuously evolved, followed in Peking Union Medical College Hospital (PUMCH). We aimed to review AP case series to help understand the impact of guideline evolution on the management and prognosis of AP in real-world ***: This was a single-center study of AP patients who had received invasive interventions from 1988 to 2022. Patient demographics, baseline severity, imaging findings, and the indication, timing, and specific modalities of invasive interventions were collected. The composite primary endpoint was death during hospitalization or major complications after intervention. Other endpoints included pancreatic fistula, incision infection, number of interventions, length of intensive care stay, length of hospitalization, and total medical ***: A total of 195 patients were included. The most common indication for invasive intervention was suspected infection, followed by persistent symptoms. The step-up and delayed strategies reduced the incidence of major complications or death. Over 35 years, the number of patients requiring surgery has gradually declined, and more patients need only minimally invasive procedures for remission. The incidence of the primary outcome decreased as well as the duration of ***: The management of AP patients at PUMCH in the last 35 years has undergone therapeutic guideline changes that support the efficacy and safety of the deferred step-up strategy in real-world practice.

关键词： Acute pancreatitis Drainage Invasive intervention Necrosectomy Step-up

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Inclusion of purified dietary fiber during gestation improved the reproductive performance of sows

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Journal of Animal Science and Biotechnology 2020年第4期11卷 1009-1025页

作者： Yong Zhuo Bo Feng Yuedong xuan Lianqiang Che Zhengfeng Fang Yan Lin shengyu xu Jian Li Bing Feng De Wu Key Laboratory for Animal Disease-Resistant Nutrition of the Ministry of Education of China and Animal Nutrition InstituteSichuan Agricultural University211 Huimin RoadWenjiangChengdu 611130People’s Republic of China

Background: This study aimed to investigate the impacts of guar gum and cellulose as the source of dietary fiber during gestation on the reproductive performance of ***: A total of 210 sows(parities 3–6) were randomly allocated into six diets(n = 35) throughout gestation to feed graded levels of dietary fiber(DF), including a corn-soybean meal-based control diet with no wheat bran inclusion(CON, 12.5% DF), a wheat bran-rich diet(DF1, 17.4% DF), and another 4 diets(DF2, 17.7% DF;DF3, 18.1%DF;DF4, 18.4% DF;DF5, 18.8% DF) in which wheat bran were equally substituted by 1%, 2%, 3% and 4% purified FIBER MIX(guar gum and cellulose, 1:4). All sows received similar DE and other nutrients throughout ***: DF treatment during gestation resulted in normal fecal score(1 to 5 with 1 = dry and 5 = watery) in sows compared with those received the CON diet(P < 0.05). The number of total born piglets had a tendency to be affected by dietary treatment(P = 0.07), and correlation analysis revealed a linear response of total born to dietary fiber levels during gestation(P < 0.01). Sows received the DF2, DF3, and DF5 diets during gestation had a greater ADFI during lactation compared with those in the CON group(P < 0.05) without affecting the daily body weight gain of suckling piglets. Gut microbiota compositions were dramatically changed by the gestation stage and some of those were changed by DF inclusion. Fecal acetate, propionate, and butyrate of sows were markedly increased in late gestation, and butyrate contents in feces of gestating sows were significantly affected by DF levels(P < 0.01).Serum concentrations of pro-inflammatory TNF-α were decreased and anti-inflammatory IL-10 was increased on day30 of gestation by DF levels(P < 0.05).Conclusions: In summary, increasing dietary fiber levels by guar gum and cellulose during gestation improved the reproductive performance of sows, which might be related to changes in immunity and gut microbiota of sows.

关键词： Dietary fiber Gut microbiota Immunity Reproductive performance Sow

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