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Area of Science:

  • Pain Research
  • Neuroscience
  • Genetics

Background:

  • Chronic pain is a complex condition influenced by biological, psychological, and social factors, affecting nearly one-third of adults worldwide.
  • It disproportionately impacts older adults, women, and socioeconomically disadvantaged populations, often co-occurring with other disorders.

Purpose of the Study:

  • To synthesize current evidence on the epidemiology, mechanisms, and management of chronic pain.
  • To emphasize the interplay of genetic, neurobiological, and psychosocial factors in chronic pain.
  • To explore advancements in monitoring and personalized treatment strategies.

Main Methods:

  • Review of population-based studies, clinical trials, neuroimaging research, and multi-omic genetic analyses.
  • Analysis of genome-wide association studies (GWAS) for genetic overlaps.
  • Examination of neuroimaging findings in prefrontal, insular, and limbic circuits.

Main Results:

  • Chronic pain exhibits significant heterogeneity, with genetic studies revealing polygenic overlap with psychiatric and immune traits.
  • Neuroimaging shows consistent alterations in brain circuits involved in pain perception and persistence.
  • Integrated approaches (psychological, physiotherapy, interventional) yield more sustainable functional improvements than pharmacotherapy alone.

Conclusions:

  • Understanding chronic pain requires integrating biological, behavioral, and environmental data for precision care.
  • Digital phenotyping, wearables, and AI offer potential for objective monitoring and personalized treatment.
  • Multifaceted management strategies are crucial for improving function and quality of life in chronic pain patients.