中国组织工程研究 ›› 2026, Vol. 30 ›› Issue (22): 5876-5885.doi: 10.12307/2026.255

• 组织工程相关大数据分析 Big data analysis in tissue engineering • 上一篇    下一篇

营养、营养状况与炎症性肠病的共同遗传基础及因果关系

廖桂彬1,吴一璇2,汤  璟3,黄金科1,王  俊1,严梓萁2,刘书君1,张海燕1,4   

  1. 1广州中医药大学第二附属医院(广东省中医院),广东省广州市   510006;2广州中医药大学第一临床医学院,广东省广州市   510405;3广州中医药大学第二临床医学院,广东省广州市   510405;4广东省中医证候临床研究重点实验室,广东省广州市   510120
  • 收稿日期:2025-09-17 接受日期:2025-11-22 出版日期:2026-08-08 发布日期:2025-12-29
  • 通讯作者: 张海燕,博士,副主任医师,广州中医药大学第二附属医院(广东省中医院),广东省广州市 510006;广东省中医证候临床研究重点实验室,广东省广州市 510120
  • 作者简介:廖桂彬,男,1995年生,广东省汕头市人,硕士,医师,主要从事中西医防治脾胃系疾病临床及基础研究。
  • 基金资助:
    广东省中医证候临床研究重点实验室项目(2023KT15486),项目负责人:张海燕;国家中医药管理局项目(ZDYN-2024-A-079),项目负责人:张海燕;国家自然科学基金项目(82400635),项目负责人:王俊

Shared genetic basis and causal relationship between nutrition, nutritional status and inflammatory bowel disease

Liao Guibin1, Wu Yixuan2, Tang Jing3, Huang Jinke1, Wang Jun1, Yan Ziqi2, Liu Shujun1, Zhang Haiyan1, 4   

  1. 1The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou 510006, Guangdong Province, China; 2The First Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 3The Second Clinical Medical College, Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 4Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou 510120, Guangdong Province, China
  • Received:2025-09-17 Accepted:2025-11-22 Online:2026-08-08 Published:2025-12-29
  • Contact: Zhang Haiyan, MD, Associate chief physician, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou 510006, Guangdong Province, China; Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou 510120, Guangdong Province, China
  • About author:Liao Guibin, MS, Physician, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou 510006, Guangdong Province, China
  • Supported by:
    Guangdong Provincial Key Laboratory of Clinical Research on Syndromes in Traditional Chinese Medicine, No. 2023KT15486 (to ZHY); State Administration of Traditional Chinese Medicine Project, No. ZDYN-2024-A-079 (to ZHY); National Natural Science Foundation of China, No. 82400635 (to WJ)

摘要:



文题释义:
连锁不平衡评分回归分析:一种基于全基因组关联研究汇总统计数据的统计方法,主要用于估计性状的遗传力以及评估全基因组关联研究结果中可能存在的系统性偏倚(如群体结构、样本重叠或隐含混杂因素)。
跨表型关联分析:通过综合多个相关表型的全基因组关联研究结果,识别不同表型之间共享的遗传关联位点。该方法特别适用于探索具有相似遗传基础的复杂性状,如多种代谢性疾病、精神类疾病或免疫相关疾病。
孟德尔随机化分析:一种利用遗传变异(通常是单核苷酸多态性)作为工具变量,推断暴露因素与结局之间因果关系的方法。孟德尔随机化通过排除混杂偏倚和逆因果关系的干扰,可获得比临床观察性研究更为准确的结果。

背景:炎症性肠病包括溃疡性结肠炎和克罗恩病,是一种与营养不良、肌肉减少症和疾病严重程度相关的慢性疾病,然而关于它们之间遗传关联及因果关系的研究有限。
目的:运用先进的统计遗传学方法系统探究营养、营养状况与炎症性肠病之间的共同遗传基础及因果关系。
方法:从GWAS Catalog数据库(由美国国家人类基因组研究所和欧洲生物信息研究所共同构建,系统收录公开发表的基因组关联研究结果)下载矿物质、维生素、白蛋白、血红蛋白、脂肪酸和肌肉减少症特征(四肢瘦体质量和握力)的单核苷酸多态性数据,从R10版本FinnGen数据库(由芬兰国家基因组中心牵头构建的大规模基因组学项目)获取炎症性肠病及其亚型的数据,结合先进的统计遗传学方法,包括连锁不平衡评分回归、跨表型关联分析和孟德尔随机化,来推断营养指标、肌肉减少症与炎症性肠病之间的关联。
结果与结论:此研究揭示了显著的遗传相关性:维生素D与炎症性肠病(rg=-0.080,P=0.029)以及溃疡性结肠炎(rg=-0.087,P=0.027)相关;四肢瘦体质量与炎症性肠病(rg=-0.100,P=0.000 2)、溃疡性结肠炎(rg=-0.100,P=0.000 2)以及小肠型克罗恩病(rg=-0.081,P=0.035)相关;握力与小肠型克罗恩病(rg=-0.125,P=0.035)相关。此外,孟德尔随机化分析表明镁水平与炎症性肠病(OR=1.41,P=0.036)以及小肠型克罗恩病(OR=1.78,P=0.035)之间存在正向因果关系。跨表型关联分析确定了共享的单核苷酸多态性,尤其是在人类白细胞抗原区域内,这些单核苷酸多态性对营养状况和炎症性肠病均有影响。研究结果进一步解释了营养、肌肉减少症和炎症性肠病之间的遗传联系,表明有针对性的营养管理可能是减缓疾病进展的关键。这项研究为提出更个性化的治疗方法提供了新视角,对炎症性肠病的预防策略具有潜在意义。

https://orcid.org/0009-0003-9198-1288 (张海燕) 


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工

关键词: 营养, 肌肉减少症, 炎症性肠病, 全基因组关联研究, 欧洲生物信息研究所, 芬兰基因组项目, 连锁不平衡评分回归, 跨表型关联分析, 孟德尔随机化

Abstract: BACKGROUND: Inflammatory bowel disease, encompassing ulcerative colitis and Crohn’s disease, is a chronic condition linked to malnutrition, sarcopenia, and disease severity, with limited research on their genetic associations. 
OBJECTIVE: To systematically explore the common genetic basis and causal relationships between nutrition, nutritional status, and inflammatory bowel disease using advanced statistical genetics.
METHODS: Single nucleotide polymorphism data for nutritional markers (minerals, vitamins, albumin, hemoglobin, and fatty acids) and sarcopenia traits (appendicular lean mass and grip strength) were obtained from the GWAS Catalog database (jointly established by the National Human Genome Research Institute and the European Bioinformatics Institute, which systematically curates published genome-wide association studies). Summary statistics for inflammatory bowel disease and its subtypes were retrieved from the FinnGen R10 release (a large-scale genomics project coordinated by the Finnish Institute for Health and Welfare). Advanced statistical genetics methods, including linkage disequilibrium score regression, cross-phenotype association analysis, and Mendelian randomization, were applied to infer the associations between nutritional markers, sarcopenia, and inflammatory bowel disease.
RESULTS AND CONCLUSION: This study revealed notable genetic correlations: vitamin D with inflammatory bowel disease (rg=-0.080, P=0.029) and ulcerative colitis (rg=-0.087, P=0.027), appendicular lean mass with inflammatory bowel disease (rg=-0.100, P=0.000 2), ulcerative colitis (rg=-0.100, P=0.000 2), and small intestine Crohn’s disease (rg=-0.081, P=0.035), grip strength with small intestine Crohn’s disease (rg=-0.125, P=0.035). Furthermore, Mendelian randomization analysis demonstrated a positive causal link between magnesium levels and inflammatory bowel disease (OR=1.41, P=0.036), and small intestine Crohn’s disease (OR=1.78, P=0.035). Cross-phenotype association identified shared single nucleotide polymorphisms, particularly within the human leukocyte antigen region, influencing both nutritional status and inflammatory bowel disease. Our findings advanced the understanding of genetic connections between nutrition, sarcopenia, and inflammatory bowel disease, suggesting that targeted nutritional management may be key in mitigating disease progression. This research paves the way for more personalized treatment approaches, with potential implications for preventive strategies in inflammatory bowel disease care.


Key words: nutrition, sarcopenia, inflammatory bowel disease, genome-wide association study, European Bioinformatics Institute, FinnGen Project, linkage disequilibrium score regression, cross-phenotype association analysis, Mendelian randomization

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