微RNA分类和重大抑郁症诊断的发现:朝着一个强大的和可解释的机器学习方法
Yee Ling Chan1, Cyrus S H Ho2, Gabrielle W N Tay2
1Centre for Intelligent Signal and Imaging Research (CISIR), Universiti Teknologi PETRONAS (UTP), Bandar Seri Iskandar 32610, Perak, Malaysia.
Journal of affective disorders
|May 24, 2024
概括
这项研究使用机器学习来识别血液中的五个关键的微RNA (miRNA),这些微RNA可以帮助诊断严重抑郁症 (MDD). 这种方法为潜在的临床用途提供了一种更易于解释和更稳定的方法.
科学领域:
- 生物医学科学 生物医学科学
- 基因组学就是基因组学.
- 计算生物学 计算生物学
背景情况:
- 大型抑郁症 (MDD) 由于复杂的症状和主观诊断,往往被诊断不足和治疗不足.
- 确定可靠的生物标志物对于了解MDD的原因至关重要.
- 之前的机器学习 (ML) 对MDD中微RNA (miRNA) 水平的研究缺乏临床解释性和稳定性.
研究的目的:
- 开发一种使用血液miRNA表达的临床适用方法来诊断MDD.
- 为了确定一个稳定和可解释的miRNAs集用于MDD检测.
主要方法:
- 将逻辑回归 (LR) 模型应用于来自60名MDD患者和60名健康对照者的血液miRNA表达数据.
- 使用嵌入式L1-规范化后勤回归特征选择器来识别临床相关的miRNAs.
- 为临床应用优化模型,重点关注可解释性和稳定性.
主要成果:
- 使用所有miRNA的基准模型实现了0.81.1的AUC.
- 优化的LR-5模型 (使用5个miRNA) 显示出良好的分类能力 (AUC=0.75),具有高的解释性和稳定性.
- 已识别的miRNA与免疫系统的细胞因子信号传递,里林信号传递,编程细胞死亡和细胞应激反应有关.
结论:
- 使用ML设计因素优化的LR-5模型显示了作为MDD的强大和临床可用的诊断工具的潜力.
- 这种方法增强了基于ML的miRNA分析用于精神疾病的临床翻译.
相关概念视频
01:22MicroRNAs
3.0K
MicroRNA (miRNA) are short, regulatory RNA transcribed from introns (non-coding regions of a gene) or intergenic regions (stretches of DNA present between genes). Several processing steps are required to form biologically active, mature miRNA. The initial transcript, called primary miRNA (pri-mRNA), base-pairs with itself, forming a stem-loop structure. Within the nucleus, an endonuclease enzyme, called Drosha, shortens the stem-loop structure into hairpin-shaped pre-miRNA. After the pre-miRNA...
3.0K
01:27Depressive Disorders: MDD and Dysthymia
100
Depressive disorders are a group of mental health conditions characterized by pervasive feelings of sadness, diminished pleasure in life, and a significant impact on daily functioning. These conditions are most prevalent in individuals during their 30s and affect women at twice the rate of men. Contrary to popular belief, younger individuals are generally more susceptible to these disorders than older adults. Two key types of depressive disorders include Major Depressive Disorder (MDD) and...
100
01:23Antidepressant Drugs: MAOIs and Other Agents
225
Atypical antidepressants, including bupropion (Wellbutrin), mirtazapine (Remeron), nefazodone (Serzone), trazodone (Desyrel), and vilazodone (Viibryd), offer unique mechanisms of action. Bupropion weakly inhibits dopamine and norepinephrine reuptake, aiding depression treatment and smoking cessation, with a low risk of sexual dysfunction. Mirtazapine enhances serotonin and norepinephrine neurotransmission, leading to sedation, increased appetite, and weight gain. As a result, it helps treat...
225