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Xu Q, Zhao J, Jian H, Ye J, Gong M, Zou X, Dong X. Linoleic acid ameliorates intestinal mucosal barrier injury in early weaned pigeon squabs (Columba livia). J Anim Sci 2023; 101:skad125. [PMID: 37186172 PMCID: PMC10195202 DOI: 10.1093/jas/skad125] [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: 02/10/2023] [Accepted: 04/22/2023] [Indexed: 05/17/2023] Open
Abstract
The study aimed to investigate whether linoleic acid could improve the intestinal barrier function of squabs under weaning stress conditions. Totally 320 7-d-old weaned squabs were randomly divided into four treatment groups, including control group (CON), 0.7% linoleic acid addition group (LA007), 1.4% linoleic acid addition group (LA014) and 2.1% linoleic acid addition group (LA021). At 21 d, eight squabs were randomly selected from each treatment group for sampling and determination. The results showed that adding linoleic acid could improve (P < 0.05) the body weight of weaned squabs, and LA014 had the best effect. With the increase of linoleic acid dosage, villi height and villi area increased linearly or quadratically (P < 0.05), and reached the maximum in LA021 or LA014, respectively. The linoleic acid supplementation could improve the intestinal tight junction of weaned squabs, and the LA014 was the most significant (P < 0.05). With the linoleic acid increasing, the levels of intestinal IL-6 and TNF-α decreased linearly (P < 0.05), while intestinal IL-10 increased quadratically (P < 0.05) and reached the maximum in LA014. Serum endotoxin and diamine oxidase levels decreased linearly (P < 0.05) and reached the lowest level in LA014. The ultrastructure of villi revealed that the length of ileal microvilli in LA014 was significantly increased (P < 0.05) and the microvilli became dense, and the mitochondria in epithelial cells returned to normal state. Further exploring the mechanism of linoleic acid alleviating intestinal injury caused by weaning stress in squabs, it was found that linoleic acid down-regulated (P < 0.05) the relative protein expression of TLR4, MyD88, phosphorylated JNK, and phosphorylated p38, reducing secretion of pro-inflammatory factors IL-6 and TNF-α. This study indicated that linoleic acid could alleviate intestinal barrier injury of early weaned squabs by down-regulating TLR4-MyD88-JNK/p38-IL6/TNF-α pathway.
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Affiliation(s)
- Qianqian Xu
- Key Laboratory of Characteristic Agricultural Product Quality and Hazardous Substance Control Technology of Zhejiang Province, Institute of Food Nutrition and Quality Safety, College of Life Science, China Jiliang University, Hangzhou 310018, China
| | - Jin Zhao
- Key Laboratory of Characteristic Agricultural Product Quality and Hazardous Substance Control Technology of Zhejiang Province, Institute of Food Nutrition and Quality Safety, College of Life Science, China Jiliang University, Hangzhou 310018, China
| | - Huafeng Jian
- Key laboratory for Molecular Animal Nutrition of Ministry of Education, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University (Zijingang Campus), Hangzhou 310058, China
| | - Jiangcheng Ye
- Key Laboratory of Characteristic Agricultural Product Quality and Hazardous Substance Control Technology of Zhejiang Province, Institute of Food Nutrition and Quality Safety, College of Life Science, China Jiliang University, Hangzhou 310018, China
| | - Mingxiu Gong
- Key Laboratory of Characteristic Agricultural Product Quality and Hazardous Substance Control Technology of Zhejiang Province, Institute of Food Nutrition and Quality Safety, College of Life Science, China Jiliang University, Hangzhou 310018, China
| | - Xiaoting Zou
- Key laboratory for Molecular Animal Nutrition of Ministry of Education, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University (Zijingang Campus), Hangzhou 310058, China
| | - Xinyang Dong
- Key laboratory for Molecular Animal Nutrition of Ministry of Education, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Feed Science Institute, College of Animal Science, Zhejiang University (Zijingang Campus), Hangzhou 310058, China
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Xie P, Wan XP, Yang CX, Zhu JG, Xu YG, Gong DQ. Effects of incubation and chick rearing on intestinal morphology, digestive enzyme activities, and mRNA expression of nutrient transporter genes in the pigeon (Columba livia) under artificial farming conditions. Poult Sci 2020; 99:2785-2797. [PMID: 32359616 PMCID: PMC7597554 DOI: 10.1016/j.psj.2019.12.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 12/25/2019] [Accepted: 12/25/2019] [Indexed: 12/19/2022] Open
Abstract
The present study investigated the changes in morphology, enzyme activities in the pancreas and mucosa, and nutrient transporter gene expression in the duodenum and jejunum in male and female pigeons during the incubation and chick-rearing periods. Forty-two pairs of White King pigeons with 2 fertile eggs per pair were randomly divided into 7 groups by different breeding stages. The crypt depth of the duodenum and jejunum reached the peak at day 1 (R1) and day 7 (R7) of chick rearing, respectively. The jejunum surface area increased to a maximum value at R1. Amylase activity in the pancreas decreased to the lowest value at R1, whereas trypsin and lipase activities peaked at 17 D of incubation (I17) and R7, respectively. In male pigeons, mucosal Na+-K+-ATPase activity in the duodenum and jejunum was the highest at R15 and it was at I17 in female pigeons. Jejunum sucrose activity in female pigeons was higher at I4 than that at I17 (P < 0.05). The gene expression of FAT/CD36 and I-FABP in the duodenum gradually increased and then declined in the late chick-rearing period. SGLT1 in the jejunum decreased to a lower level at I17 and R25 in male pigeons (P < 0.05). GLUT2 expression in female duodenum and male jejunum decreased to a lower value at I17 compared with that at R15 (P < 0.05). In the late of incubation (from I10 to I17), expression of duodenum CAT1, B0AT1, and PepT1 and jejunum CAT1, ASCT1, and PepT1 in female pigeons was significantly reduced (P < 0.05), whereas opposite results were found in male jejunum CAT1 and duodenum ASCT1. In conclusion, variations of intestinal morphology, activities of pancreatic and mucosal enzymes, and gene expression of nutrient transporters during incubation and chick-rearing periods, underlying potential changes of digestive and absorptive function and intestinal adaptation with sexual effects, may represent a complicated response to stimuli of different breeding stages.
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Affiliation(s)
- P Xie
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian 223300, China; Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China; College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China.
| | - X P Wan
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - C X Yang
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
| | - J G Zhu
- Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
| | - Y G Xu
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian 223300, China; Jiangsu Key Laboratory for Eco-Agricultural Biotechnology around Hongze Lake, Huaiyin Normal University, Huaian 223300, China
| | - D Q Gong
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
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Xu XL, Mao HG, Liu HH, Dong XY, Zou XT, Yin ZZ. Bioinformatics analysis and tissue-specific expression of intestinal-type fatty acid binding protein in domestic pigeons (Columba livia). JOURNAL OF APPLIED ANIMAL RESEARCH 2020. [DOI: 10.1080/09712119.2020.1735397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Xiu Li Xu
- Animal Science College, Zhejiang University, Hangzhou, People’s Republic of China
| | - Hai Guang Mao
- Animal Science College, Zhejiang University, Hangzhou, People’s Republic of China
| | - Hong Hua Liu
- Animal Science College, Zhejiang University, Hangzhou, People’s Republic of China
| | - Xin Yang Dong
- Animal Science College, Zhejiang University, Hangzhou, People’s Republic of China
| | - Xiao Ting Zou
- Animal Science College, Zhejiang University, Hangzhou, People’s Republic of China
| | - Zhao Zheng Yin
- Animal Science College, Zhejiang University, Hangzhou, People’s Republic of China
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Wan XP, Xie P, Bu Z, Zou XT, Gong DQ. Prolactin induces lipid synthesis of organ-cultured pigeon crops. Poult Sci 2019; 98:1842-1853. [PMID: 30590797 DOI: 10.3382/ps/pey540] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 12/01/2018] [Indexed: 12/29/2022] Open
Abstract
The objective of this research was to examine the effects of prolactin (PRL) on the lipid synthesis of organ-cultured pigeon crops in vitro. In experiment 1, the histology, activities of enzymes, and expression of genes involved in metabolism and apoptosis of organ-cultured pigeon crops were analyzed over a 7-d culture period. The results showed that cultured crops maintained their structural integrity for up to 3 d in vitro. Beyond 3 d, caspase-3 activity and Bak1 gene expression increased with day of culture, whereas the activities of succinate dehydrogenase, Na+-K+-ATPase, Ca2+-Mg2+-ATPase, total ATPase, and gene expression of Bcl-2 and CK-19 diminished (P < 0.05). In experiment 2, the crops were cultured for 24, 36, and 48 h in medium containing 0, 25, or 50 ng/mL PRL, respectively, and the accumulation of lipid droplets, lipid content, and expression of fatty acid transportation- and lipogenesis-related genes were analyzed. The results showed that the crops with PRL supplements showed higher amounts of lipid droplets than those of the controls, and the droplets were mainly located in the basal nutritive layer in response to PRL. The efficacy of inducing lipid accumulation increased as the concentration of PRL increased. Crops with 50 ng/mL PRL incubated for 36 h displayed the maximal lipid content. Increasing the concentration of PRL from 0 to 50 ng/mL resulted in a dose-dependent increase in the expression of acetyl-CoA carboxylase, fatty acid synthase, fatty acid translocase, fatty acid binding protein 5, acyl-CoA binding protein, and peroxisome proliferator-activated receptor γ genes after incubation for 36 h (P < 0.05). Therefore, our results indicated that the organ-cultured pigeon crops maintained good viability for up to 3 d in vitro. Furthermore, PRL induced the lipid synthesis of organ-cultured pigeon crops in a dose- and time-dependent manner, which was related to the increased expression of genes involved in fatty acid transportation and lipogenesis.
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Affiliation(s)
- X P Wan
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian 223300, China.,Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - P Xie
- Jiangsu Collaborative Innovation Center of Regional Modern Agriculture & Environmental Protection, Huaiyin Normal University, Huaian 223300, China.,College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
| | - Z Bu
- Poultry Institute, Chinese Academy of Agricultural Sciences, Yangzhou 225125, China
| | - X T Zou
- Key Laboratory of Molecular Animal Nutrition, Ministry of Education, College of Animal Science, Zhejiang University, Hangzhou 310058, China
| | - D Q Gong
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
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Tang Y, Li Y, Zhang D, Su X, Zhang D. Characterization of a fatty acid binding protein from the swimming crab Portunus trituberculatus and its effects on the composition of fatty acids in different tissues. INVERTEBR REPROD DEV 2017. [DOI: 10.1080/07924259.2017.1364674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yujie Tang
- School of Marine Science, Ningbo University, Ningbo, China
| | - Ye Li
- School of Marine Science, Ningbo University, Ningbo, China
| | - Dijun Zhang
- School of Marine Science, Ningbo University, Ningbo, China
| | - Xiurong Su
- School of Marine Science, Ningbo University, Ningbo, China
| | - Diya Zhang
- School of Marine Science, Ningbo University, Ningbo, China
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Chen MX, Li XG, Yang JX, Gao CQ, Wang B, Wang XQ, Yan HC. Growth of embryo and gene expression of nutrient transporters in the small intestine of the domestic pigeon (Columba livia). J Zhejiang Univ Sci B 2016; 16:511-23. [PMID: 26055913 DOI: 10.1631/jzus.b1400340] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The objective of this study was to investigate the relationship between gene expression of nutrient (amino acid, peptide, sodium and proton) transporters in the small intestine and embryonic growth in domestic pigeons (Columba livia). One hundred and twenty-five fertilized eggs were randomly assigned into five groups and were incubated under optimal conditions (temperature of 38.1 °C and relative humidity of 55%). Twenty embryos/birds from each group were sacrificed by cervical dislocation on embryonic day (E) 9, 11, 13, 15 and day of hatch (DOH). The eggs, embryos (without yolk sac), and organs (head, brain, heart, liver, lungs, kidney, gizzard, small intestine, legs, and thorax) were dissected, cleaned, and weighed. Small intestine samples were collected for RNA isolation. The mRNA abundance of intestinal nutrient transporters was evaluated by real-time reverse transcription-polymerase chain reaction (RT-PCR). We classified these ten organs into four types according to the changes in relative weight during embryonic development. In addition, the gene expression of nutrient transporters was differentially regulated by embryonic day. The mRNA abundances of b(0,+)AT, EAAT3, y(+)LAT2, PepT1, LAT4, NHE2, and NHE3 increased linearly with age, whereas mRNA abundances of CAT1, CAT2, LAT1, EAAT2, SNAT1, and SNAT2 were increased to higher levels on E9 or E11 and then decreased to lower levels until DOH. The results of correlation analysis showed that the gene expressions of b(0,+)AT, EAAT3, PepT1, LAT4, NHE2, NHE3, and y(+)LAT2 had positive correlations with body weight (0.71<correlation coefficient (CC)<0.82, P<0.0001), while CAT1, CAT2, EAAT2, SNAT1, and SNAT2 had negative correlations with body weight (-0.86<CC<-0.64, P<0.0001). The gene expressions of b(0,+)AT, EAAT3, LAT4, PepT1, NHE2, NHE3, and y(+)LAT2 showed positive correlations with intestinal weight (0.80<CC<0.91, P<0.0001), while CAT1, CAT2, and EAAT2 showed negative correlations with intestinal weight (-0.84<CC<-0.67, P<0.0001). It was concluded that the differences between growth trajectories of organs and gene expression of nutrient transporters in small intestine were due to their functional and physiological properties, which provided a comprehensive study of amino acid and peptide transporter mRNA in the small intestine during embryonic growth of pigeons.
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Affiliation(s)
- Ming-xia Chen
- College of Animal Science, South China Agricultural University / Key Laboratory of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture / Guangdong Provincial Key Laboratory of Agro-Animal Genomics / South China Collaborative Innovatio Center for Poultry Disease Control and Product Safety, Guangzhou 510642, China; Guangdong Fengli Agricultural Comprehensive Development Co., Ltd., Maoming 525000, China
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Xie P, Yuan C, Wang C, Zou XT, Po Z, Tong HB, Zou JM. Molecular cloning and tissue distribution of peroxisome proliferator-activated receptor-alpha (PPARα) and gamma (PPARγ) in the pigeon (Columba livia domestica). Br Poult Sci 2014; 55:136-42. [DOI: 10.1080/00071668.2014.889281] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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