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Investigation of Bioactive Lipids on Gut Physiology, Immune Response, and Microbiota in an In Vitro Pig Intestinal Cell Line and Neonatal Pigs Following Challenge.
Investigation of Bioactive Lipids on Gut Physiology, Immune Response, and Microbiota in an In Vitro Pig Intestinal Cell Line and Neonatal Pigs Following Challenge.
상세정보
- 자료유형
- 학위논문(국외)
- 기본표목-개인명
- 표제와 책임표시사항
- Investigation of Bioactive Lipids on Gut Physiology, Immune Response, and Microbiota in an In Vitro Pig Intestinal Cell Line and Neonatal Pigs Following Challenge.
- 발행, 배포, 간사 사항
- 발행, 배포, 간사 사항
- 형태사항
- 188 p.
- 일반주기
- Source: Dissertations Abstracts International, Volume: 87-07, Section: B.
- 일반주기
- Advisor: Jacobi, Sheila K.
- 학위논문주기
- Thesis (Ph.D.)--The Ohio State University, 2023.
- 요약 등 주기
- 요약Optimal piglet performance is fundamental to the profitability of the swine industry. Dysregulated gut homeostasis has been associated with neurological disorders, and conversely, neurological/brain diseases can affect the gut environment. Cumulatively the nutritional, psychological, and environmental challenges early in a piglet?s life leads to increased morbidity and mortality in the swine industry. Enterotoxigenic Escherichia coli (ETEC) is a gram-negative bacterium associated with gastrointestinal (GI) disfunction and diarrhea disease in young animals worldwide, and lipopolysaccharide (LPS) also referred to as endotoxin, is a glycolipid component of its cell wall. Dietary nutrients in the early neonatal period not only provide essential sustenance for growth, but also are critical for intestinal, immunologic, and neurological development. Both long-chain polyunsaturated fatty acids (LC-PUFA) and milk fat globule membrane (MFGM) have been implicated in gut barrier function, inflammatory response, neurodevelopment, and gut microbiota. The first objective of this research is to define the local intestinal barrier function mechanisms of LC-PUFA that drive the protection of the barrier during ETEC challenge. Using the intestinal porcine epithelial cells (IPEC-J2) model, pretreatment with LC-PUFA showed various protective properties. Docosahexaenoic acid (DHA) significantly enhanced the barrier integrity by increasing transepithelial electrical resistance and decreasing fluorescein isothiocyanate-dextran flux across the epithelial barrier. Arachidonic acid (ARA) and DHA tended to increase protein abundance of membrane tight junction (TJ) protein (occludin), while increasing nuclear peroxisome proliferator-activated receptor-gamma (PPAR?). In the presence of ETEC, eicosapentaenoic acid (EPA) protected against a decline in membrane TJ claudin-1 protein. All three LC-PUFA alleviated the ETEC-induced up-regulation of nuclear factor kappa B (NF?B) p65 and decreased lactate dehydrogenase release. These results suggest that LC-PUFA protect against ETEC-induced intestinal barrier damage by regulating PPAR? and NF?B in IPEC-J2 cells. The second objective of this research is to define dietary MFGM PL mechanisms on growth performance and intestinal barrier function in neonatal piglets challenged acutely with LPS. During the suckling period, dietary MFGM had no adverse impact on growth performance or intestinal TJ proteins abundance. Dietary MFGM improved intestinal architecture by increasing villus height (VH) and villus width and decreased crypt depth (CD), thereby increasing the VH:CD ratio and villus surface. Additionally, there was an increase in colon diamine oxidase (DAO) activity with MFGM diet compared to soy-fed pigs. MFGM further resulted in interactions in mRNA expression levels of nuclear factor of kappa light polypeptide gene enhancer in B cells inhibitor alpha (I?B?), zonula occludens-1 (ZO-1), and glucagon like peptide 2 receptor (GLP-2R). These results suggest that dietary MFGM improved neonatal piglet intestinal architecture and increased colon integrity, potentially attenuating the intestinal barrier disruption following LPS challenge. The third objective is to define dietary MFGM PL mechanisms on neuroinflammatory response and gut microbiome in suckling piglets challenged acutely with LPS. Principal coordinates analysis indicated differences in microbial community structures between CON-fed and MFGM-fed groups. Dietary MFGM supplementation modulated relative abundances of several genera, including Corynebacterium, Unclassified Muribaculaceae, AM51-8, Duodenibacillus, Mediterraneibacter_A_155507, Roseburia, and Schaedlerella. Although dietary MFGM had no adverse impact on hypothalamus TJ or inflammatory cytokines at mRNA transcription level, there was an MFGM ? LPS interaction observed for I?B?. These results suggest dietary MFGM may alter neonatal piglet intestinal microbiota and marker of neuroinflammation following LPS challenge.
- 주제명부출표목-일반주제명
- 주제명부출표목-일반주제명
- 주제명부출표목-일반주제명
- 주제명부출표목-일반주제명
- 비통제 색인어
- 비통제 색인어
- 비통제 색인어
- 부출표목-단체명
- 기본자료저록
- Dissertations Abstracts International. 87-07B.
- 전자적 위치 및 접속
- 원문정보보기
MARC
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■1001 ▼aZheng, Rui.
■24510▼aInvestigation of Bioactive Lipids on Gut Physiology, Immune Response, and Microbiota in an In Vitro Pig Intestinal Cell Line and Neonatal Pigs Following Challenge.
■260 ▼a[S.l.]▼bThe Ohio State University. ▼c2023
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2023
■300 ▼a188 p.
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-07, Section: B.
■500 ▼aAdvisor: Jacobi, Sheila K.
■5021 ▼aThesis (Ph.D.)--The Ohio State University, 2023.
■520 ▼aOptimal piglet performance is fundamental to the profitability of the swine industry. Dysregulated gut homeostasis has been associated with neurological disorders, and conversely, neurological
ain diseases can affect the gut environment. Cumulatively the nutritional, psychological, and environmental challenges early in a piglet?s life leads to increased morbidity and mortality in the swine industry. Enterotoxigenic Escherichia coli (ETEC) is a gram-negative bacterium associated with gastrointestinal (GI) disfunction and diarrhea disease in young animals worldwide, and lipopolysaccharide (LPS) also referred to as endotoxin, is a glycolipid component of its cell wall. Dietary nutrients in the early neonatal period not only provide essential sustenance for growth, but also are critical for intestinal, immunologic, and neurological development. Both long-chain polyunsaturated fatty acids (LC-PUFA) and milk fat globule membrane (MFGM) have been implicated in gut barrier function, inflammatory response, neurodevelopment, and gut microbiota. The first objective of this research is to define the local intestinal barrier function mechanisms of LC-PUFA that drive the protection of the barrier during ETEC challenge. Using the intestinal porcine epithelial cells (IPEC-J2) model, pretreatment with LC-PUFA showed various protective properties. Docosahexaenoic acid (DHA) significantly enhanced the barrier integrity by increasing transepithelial electrical resistance and decreasing fluorescein isothiocyanate-dextran flux across the epithelial barrier. Arachidonic acid (ARA) and DHA tended to increase protein abundance of membrane tight junction (TJ) protein (occludin), while increasing nuclear peroxisome proliferator-activated receptor-gamma (PPAR?). In the presence of ETEC, eicosapentaenoic acid (EPA) protected against a decline in membrane TJ claudin-1 protein. All three LC-PUFA alleviated the ETEC-induced up-regulation of nuclear factor kappa B (NF?B) p65 and decreased lactate dehydrogenase release. These results suggest that LC-PUFA protect against ETEC-induced intestinal barrier damage by regulating PPAR? and NF?B in IPEC-J2 cells. The second objective of this research is to define dietary MFGM PL mechanisms on growth performance and intestinal barrier function in neonatal piglets challenged acutely with LPS. During the suckling period, dietary MFGM had no adverse impact on growth performance or intestinal TJ proteins abundance. Dietary MFGM improved intestinal architecture by increasing villus height (VH) and villus width and decreased crypt depth (CD), thereby increasing the VH:CD ratio and villus surface. Additionally, there was an increase in colon diamine oxidase (DAO) activity with MFGM diet compared to soy-fed pigs. MFGM further resulted in interactions in mRNA expression levels of nuclear factor of kappa light polypeptide gene enhancer in B cells inhibitor alpha (I?B?), zonula occludens-1 (ZO-1), and glucagon like peptide 2 receptor (GLP-2R). These results suggest that dietary MFGM improved neonatal piglet intestinal architecture and increased colon integrity, potentially attenuating the intestinal barrier disruption following LPS challenge. The third objective is to define dietary MFGM PL mechanisms on neuroinflammatory response and gut microbiome in suckling piglets challenged acutely with LPS. Principal coordinates analysis indicated differences in microbial community structures between CON-fed and MFGM-fed groups. Dietary MFGM supplementation modulated relative abundances of several genera, including Corynebacterium, Unclassified Muribaculaceae, AM51-8, Duodenibacillus, Mediterraneibacter_A_155507, Roseburia, and Schaedlerella. Although dietary MFGM had no adverse impact on hypothalamus TJ or inflammatory cytokines at mRNA transcription level, there was an MFGM ? LPS interaction observed for I?B?. These results suggest dietary MFGM may alter neonatal piglet intestinal microbiota and marker of neuroinflammation following LPS challenge.
■590 ▼aSchool code: 0168.
■650 4▼aNutrition.
■650 4▼aAnimal sciences.
■650 4▼aCellular biology.
■650 4▼aImmunology.
■653 ▼aOptimal piglet performance
■653 ▼aGastrointestinal disfunction
■653 ▼aLipopolysaccharide
■690 ▼a0570
■690 ▼a0475
■690 ▼a0379
■690 ▼a0982
■71020▼aThe Ohio State University▼bOhio State University Nutrition.
■7730 ▼tDissertations Abstracts International▼g87-07B.
■790 ▼a0168
■791 ▼aPh.D.
■792 ▼a2023
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17361280▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


