Decoding depression by exploring the exposome-genome edge amidst COVID-19 lockdown
Xavier Farré1,2, Natalia Blay1,2, Ana Espinosa3,4,5,6
1Genomes for Life-GCAT Lab, Germans Trias i Pujol Research Institute (IGTP), Badalona, Spain.
Scientific Reports
|June 12, 2024
Summary
Environmental and lifestyle factors significantly increased depression risk during the COVID-19 pandemic. Social and behavioral stressors were key drivers, with a potential mitigating gene-environment interaction observed.
Area of Science:
- Psychiatry and Genetics
- Epidemiology
- Environmental Health
Background:
- The COVID-19 pandemic heightened depression risk globally.
- Understanding genetic and environmental factors influencing depression vulnerability is crucial.
Purpose of the Study:
- To investigate the interplay of genetic and environmental factors on depression risk during the COVID-19 lockdown.
- To introduce and validate Poly-Environmental Risk Scores (PERS) alongside Polygenic Risk Scores (PRS).
Main Methods:
- A Spanish cohort (COVICAT) of 9218 individuals was analyzed.
- Exposome data (non-genetic risks) and genomics data (2442 participants) were collected.
- Depression levels were assessed using the Hospital Anxiety and Depression Scale; PRS and novel PERS were calculated.
Main Results:
- PERS scores for social, lifestyle, and environmental factors showed significant positive associations with depression severity.
- Polygenic Risk Scores for broad depression (PRS_B) were associated with moderate depression.
- An interaction between environmental PERS and PRS_B suggested a potential mitigating effect.
Conclusions:
- Social, lifestyle, and environmental exposures are primary drivers of depression risk.
- Gene-environment interactions may play a role in modulating depression risk.
- Further research is needed to confirm the mitigating effects observed.
Related Concept Videos
01:27Depressive Disorders: Etiology
67
Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
67
01:18Depression: Overview
238
Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...
238
01:30Stress and Mental Health
102
Chronic stress profoundly affects mental health, significantly influencing mood, behavior, and overall quality of life. Research closely links chronic stress with mental health conditions such as depression, anxiety, and substance use disorders. Ongoing exposure to stress can lead to physiological and psychological changes, initiating a cycle of emotional distress and maladaptive coping mechanisms.
Individuals with depression often experience challenges in both their personal and professional...
Individuals with depression often experience challenges in both their personal and professional...
102
01:28Human Genetics
559
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...
559
01:27Introduction to Stress and Lifestyle
102
Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
102
01:21G-protein Coupled Receptors
118.2K
G-protein coupled receptors are ligand binding receptors that indirectly affect changes in the cell. The actual receptor is a single polypeptide that transverses the cell membrane seven times creating intracellular and extracellular loops. The extracellular loops create a ligand specific pocket which binds to neurotransmitters or hormones. The intracellular loops holds onto the G-protein.
118.2K