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Phenotypic Assessment of Turkey Satellite Cells and Muscle Tissue Under Thermal Challenge Using Metabolomics
Phenotypic Assessment of Turkey Satellite Cells and Muscle Tissue Under Thermal Challenge Using Metabolomics
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104805
- ISBN
- 9798290931876
- DDC
- 641
- 저자명
- Keng, Boon Hong.
- 서명/저자
- Phenotypic Assessment of Turkey Satellite Cells and Muscle Tissue Under Thermal Challenge Using Metabolomics
- 발행사항
- [Sl] : Michigan State University, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 168 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
- 주기사항
- Advisor: Strasburg, Gale M.
- 학위논문주기
- Thesis (Ph.D.)--Michigan State University, 2025.
- 초록/해제
- 요약Climate-induced thermal stress during early post-hatch development poses a significant threat to commercial turkey production, particularly in modern genetic lines selected for rapid growth and high breast muscle yield. The first week post-hatch is a critical window for muscle development, as satellite cells are highly active during this period and contribute to long-term muscle structure and performance. Satellite cells are responsible for postnatal muscle fiber growth and regeneration, and their function is highly sensitive to environmental conditions. Disruption during this phase may alter their proliferation and differentiation capacity, leading to compromised muscle development and reduced meat quality. This study employed an untargeted metabolomics approach to comprehensively characterize the effects of heat and cold stress on satellite cell metabolism during both proliferation and differentiation from two turkey lines, as well as in pectoralis major tissue of 3-day-old poults.In proliferated satellite cells, heat stress induced an anabolic metabolic profile characterized by elevated amino acids, purine intermediates, and lipid signaling molecules. This reflected enhanced protein synthesis, nucleotide biosynthesis, and growth signaling, along with oxidative stress markers that indicated increased energy turnover and stress adaptation. In contrast, cold stress led to broad metabolic suppression in proliferated satellite cells, with notable decreases in nucleotides, membrane lipids, energy cofactors, and amino acids. This profile suggested a shift toward a quiescent or stress-conserved state with impaired biosynthesis and energy production, potentially limiting the expansion of the satellite cell pool during this critical period.Differentiated satellite cells exhibited a distinct metabolic phenotype in response to heat stress, marked by elevated mitochondrial activity, lipid remodeling, and redox regulation. Notably, there was significant upregulation of nucleotide biosynthesis and salvage pathways, calcium mobilizing metabolites, amino acids involved in protein synthesis and redox buffering, and fatty acid oxidation intermediates. These findings suggest that heat stress promotes terminal differentiation by supporting transcription, membrane expansion, and mitochondrial oxidative phosphorylation, albeit with the risk of increased oxidative stress. Cold stress, on the other hand, induced widespread metabolic downregulation in differentiated cells. Suppression of nucleotide metabolism, energy cofactors, calcium signaling molecules, and membrane lipids indicated a global reduction in transcriptional activity, mitochondrial function, and membrane remodeling. These alterations likely impair myotube formation and compromise the structural maturation of muscle fibers.In 3-day-old turkey poults' pectoralis major tissue, heat and cold stress produced more selective shifts in metabolism. Heat stress elicited changes in lipid species associated with membrane remodeling and inflammation, as well as elevated amino acids indicative of a compensatory or adaptive growth response. Cold stress led to more subtle reductions in energy metabolites and biosynthetic intermediates, consistent with growth suppression during early life.Together, these findings demonstrate that heat and cold stress drive markedly different metabolic programs in satellite cells and muscle tissue depending on developmental stage and genetic background. Heat stress generally enhances metabolic activity, supporting growth and differentiation but with oxidative risks, while cold stress suppresses key biosynthetic and energetic pathways, potentially limiting muscle development. These insights provide a mechanistic understanding of how early thermal stress influence muscle growth and may inform strategies to mitigate factors that affects meat quality in commercial turkey production.
- 일반주제명
- Food science
- 일반주제명
- Animal sciences
- 일반주제명
- Biochemistry
- 일반주제명
- Nutrition
- 키워드
- Cold stress
- 키워드
- Heat stress
- 키워드
- Live turkey
- 키워드
- Metabolomics
- 키워드
- Satellite cells
- 기타저자
- Michigan State University Food Science - Doctor of Philosophy
- 기본자료저록
- Dissertations Abstracts International. 87-02B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■020 ▼a9798290931876
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■040 ▼aMiAaPQ▼cMiAaPQ
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■1001 ▼aKeng, Boon Hong.▼0(orcid)0009-0009-5177-3891
■24510▼aPhenotypic Assessment of Turkey Satellite Cells and Muscle Tissue Under Thermal Challenge Using Metabolomics
■260 ▼a[Sl]▼bMichigan State University▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a168 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-02, Section: B.
■500 ▼aAdvisor: Strasburg, Gale M.
■5021 ▼aThesis (Ph.D.)--Michigan State University, 2025.
■520 ▼aClimate-induced thermal stress during early post-hatch development poses a significant threat to commercial turkey production, particularly in modern genetic lines selected for rapid growth and high breast muscle yield. The first week post-hatch is a critical window for muscle development, as satellite cells are highly active during this period and contribute to long-term muscle structure and performance. Satellite cells are responsible for postnatal muscle fiber growth and regeneration, and their function is highly sensitive to environmental conditions. Disruption during this phase may alter their proliferation and differentiation capacity, leading to compromised muscle development and reduced meat quality. This study employed an untargeted metabolomics approach to comprehensively characterize the effects of heat and cold stress on satellite cell metabolism during both proliferation and differentiation from two turkey lines, as well as in pectoralis major tissue of 3-day-old poults.In proliferated satellite cells, heat stress induced an anabolic metabolic profile characterized by elevated amino acids, purine intermediates, and lipid signaling molecules. This reflected enhanced protein synthesis, nucleotide biosynthesis, and growth signaling, along with oxidative stress markers that indicated increased energy turnover and stress adaptation. In contrast, cold stress led to broad metabolic suppression in proliferated satellite cells, with notable decreases in nucleotides, membrane lipids, energy cofactors, and amino acids. This profile suggested a shift toward a quiescent or stress-conserved state with impaired biosynthesis and energy production, potentially limiting the expansion of the satellite cell pool during this critical period.Differentiated satellite cells exhibited a distinct metabolic phenotype in response to heat stress, marked by elevated mitochondrial activity, lipid remodeling, and redox regulation. Notably, there was significant upregulation of nucleotide biosynthesis and salvage pathways, calcium mobilizing metabolites, amino acids involved in protein synthesis and redox buffering, and fatty acid oxidation intermediates. These findings suggest that heat stress promotes terminal differentiation by supporting transcription, membrane expansion, and mitochondrial oxidative phosphorylation, albeit with the risk of increased oxidative stress. Cold stress, on the other hand, induced widespread metabolic downregulation in differentiated cells. Suppression of nucleotide metabolism, energy cofactors, calcium signaling molecules, and membrane lipids indicated a global reduction in transcriptional activity, mitochondrial function, and membrane remodeling. These alterations likely impair myotube formation and compromise the structural maturation of muscle fibers.In 3-day-old turkey poults' pectoralis major tissue, heat and cold stress produced more selective shifts in metabolism. Heat stress elicited changes in lipid species associated with membrane remodeling and inflammation, as well as elevated amino acids indicative of a compensatory or adaptive growth response. Cold stress led to more subtle reductions in energy metabolites and biosynthetic intermediates, consistent with growth suppression during early life.Together, these findings demonstrate that heat and cold stress drive markedly different metabolic programs in satellite cells and muscle tissue depending on developmental stage and genetic background. Heat stress generally enhances metabolic activity, supporting growth and differentiation but with oxidative risks, while cold stress suppresses key biosynthetic and energetic pathways, potentially limiting muscle development. These insights provide a mechanistic understanding of how early thermal stress influence muscle growth and may inform strategies to mitigate factors that affects meat quality in commercial turkey production.
■590 ▼aSchool code: 0128.
■650 4▼aFood science
■650 4▼aAnimal sciences
■650 4▼aBiochemistry
■650 4▼aNutrition
■653 ▼aCold stress
■653 ▼aHeat stress
■653 ▼aLive turkey
■653 ▼aMetabolomics
■653 ▼aSatellite cells
■653 ▼aThermal challenge
■690 ▼a0359
■690 ▼a0475
■690 ▼a0487
■690 ▼a0570
■71020▼aMichigan State University▼bFood Science - Doctor of Philosophy.
■7730 ▼tDissertations Abstracts International▼g87-02B.
■790 ▼a0128
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358884▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.


