在NAFLD中探索与谷氨酸代谢相关的关键基因:综合分析结合了多omics,机器学习和SHAP
Changan Chen1, Wenfeng Liu2, Yongtao Lan2
1Department of Gastroenterology, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China.
Asia Pacific journal of clinical nutrition
|January 21, 2026
概括
这项研究显示,特定的代谢物可能会降低非酒精性脂肪性肝病 (NAFLD) 的风险. 谷氨胺代谢和相关基因在NAFLD中发挥着关键作用,提供了新的诊断和治疗点.
科学领域:
- 代谢学和基因组学
- 机器学习在肝病学中的应用
- 多omics分析分析多omics分析
背景情况:
- 非酒精性脂肪性肝病 (NAFLD) 是一种广泛的代谢障碍,在全球范围内患病率越来越高.
- 目前对NAFLD有效的预防和治疗策略有限.
- 由于与代谢并发症有关,NAFLD构成了重大的公共卫生挑战.
研究的目的:
- 探索使用多omics数据对NAFLD病原体的新见解.
- 确定与NAFLD风险相关的关键代谢物和基因.
- 利用机器学习来理解NAFLD相关的分子机制.
主要方法:
- 对血清代谢物和NAFLD数据集进行了门德尔随机化 (MR) 分析.
- 利用单细胞RNA测序来分析基于谷氨胺合成水平的肝细胞.
- 应用LASSO回归和机器学习算法 (Catboost,NGboost,XGboost) 用于基因识别和模型构建.
- 采用SHAP分析来解释模型和识别关键的贡献基因.
主要成果:
- 核磁共振分析发现了谷氨酸和NAFLD之间的因果关系,特定的代谢物比率 (谷氨酸与氨酸) 和脂质水平 (1-linoleoyl-2-arachidonoyl-GPC) 与NAFLD发病率降低有关.
- 确定了19个枢纽基因,在机器学习模型中实现了高预测精度 (AUC 0.83-0.86).
- SHAP分析强调ASL,LGALS1和GLUL是NAFLD模型中显著贡献的基因.
结论:
- 特定的代谢物显示出降低NAFLD风险的潜力.
- 谷氨胺代谢和相关基因在NAFLD的发展中起着至关重要的作用.
- 这些发现为NAFLD诊断和治疗策略提供了潜在的新目标.
相关概念视频
Covalently Linked Protein Regulators
8.8K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
8.8K
Key Techniques in Microbiology
1.8K
Aseptic techniques prevent contamination, ensure experimental accuracy, and protect researchers and microbial cultures. These techniques are essential in clinical, industrial, and research settings where sterility is required.Maintaining Sterility in Laboratory PracticesScientists maintain sterility by sterilizing tools with heat or chemicals, disinfecting work surfaces, and handling cultures in controlled environments. Working near an open flame or within a laminar flow hood reduces the risk...
1.8K
Key Elements for Plant Nutrition
24.0K
Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
24.0K
What is Metabolism?
131.3K
Overview
131.3K
Machines
559
Machines are complex structures consisting of movable, pin-connected multi-force members that work together to transmit forces. One example of a machine is the cutting plier, which is used to cut wires by applying forces to its handles. When equal and opposite forces are exerted on the handles of the cutting plier, they cause the cutting edges to come together and apply equal and opposite reaction forces on the wire, which are greater than the applied forces.
A free-body diagram of the...
A free-body diagram of the...
559
X-linked Traits
58.3K
In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.
58.3K


