Genetic signatures underlining circulating lipids display causal effects on schizophrenia
Jianbin Du1, Ancha Baranova2,3, Hongbao Cao2
1Department of Psychiatry, Wuxi Huishan District People's Hospital, Affiliated Huishan Hospital of Xinglin College Nantong University, Wuxi, 214151, Jiangsu, China.
Scientific Reports
|November 18, 2025
Summary
This study used Mendelian randomization to explore the causal link between circulating lipid metabolites and schizophrenia (SZ). Certain lipid metabolites significantly impact SZ risk, suggesting dietary interventions could aid prevention and treatment.
Area of Science:
- Genetics
- Metabolomics
- Psychiatry
Background:
- Schizophrenia (SZ) pathophysiology remains unclear, with limited understanding of lipid metabolite involvement.
- Previous studies suggest altered circulating lipid metabolites in SZ patients, but causality is unestablished.
Purpose of the Study:
- To investigate the bidirectional causal relationship between schizophrenia and circulating lipid metabolites.
- To identify specific lipid metabolites that influence schizophrenia risk or are affected by the condition.
Main Methods:
- Utilized two-sample Mendelian randomization (MR) analysis on large-scale GWAS data.
- Examined 233 circulating lipid metabolite traits against schizophrenia cases and controls.
- Employed inverse variance weighted (IVW), MR-Egger, and weighted median methods for causal effect estimation.
Main Results:
- Two lipid metabolites (triglyceride to total lipid ratio in VLDL, omega-3 to total fatty acid ratio) increased SZ risk.
- Five lipid metabolites showed a protective effect against SZ.
- Schizophrenia causally affected seven lipid metabolites, with stronger evidence for lipid metabolites influencing schizophrenia.
Conclusions:
- Circulating lipid metabolites have a significant causal impact on schizophrenia development.
- Findings support the potential role of targeted dietary interventions in schizophrenia prevention and management.
Related Concept Videos
01:29Biological Causes of Schizophrenia
468
Schizophrenia, a severe psychiatric disorder, arises from a complex interplay of biological factors, including genetic predisposition, structural brain abnormalities, neurotransmitter dysregulation, and developmental irregularities. These factors collectively contribute to the onset and progression of the disorder, which typically manifests in late adolescence or early adulthood.
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
Genetic Factors in Schizophrenia
The genetic basis of schizophrenia is strongly supported by family and twin...
468
01:29Psychological and Sociocultural Causes of Schizophrenia
454
Schizophrenia, a complex psychiatric disorder, has been historically misunderstood. Early psychological theories attributed its origins to childhood trauma and unresponsive parenting. However, contemporary research largely rejects these notions, favoring the vulnerability-stress hypothesis. This model proposes that individuals with a genetic predisposition to schizophrenia may develop the disorder following exposure to significant environmental stressors. Notably, studies on high-risk...
454
01:27Psychosis: Pathophysiology of Schizophrenia and Other Psychotic Disorders
1.8K
Schizophrenia is a neurodevelopmental disorder whose origins are rooted in complex genetic components. Despite our burgeoning understanding, the pathophysiology of this disorder remains incompletely deciphered.
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
Researchers have identified genetic factors that increase susceptibility to schizophrenia, underscoring the intricate interplay between genetics and environment in disease development. At the core of schizophrenia's pathophysiology is excessive dopaminergic neurotransmission within...
1.8K
01:28Human Genetics
1.4K
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
1.4K
01:11Genome-wide Association Studies-GWAS
15.2K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
15.2K
01:24Overview of Lipid Metabolism
4.7K
Lipid metabolism is a crucial process in the human body that involves the synthesis and degradation of lipids. This process is essential for energy production, cell membrane formation, and hormone production, among other functions.
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
Lipolysis: The Breakdown of Lipids:
Lipolysis is the process of breaking down lipids, particularly triglycerides, into glycerol and fatty acids. This process typically occurs in the adipose tissue and is triggered by various hormones, including glucagon and...
4.7K