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Area of Science:

  • Ophthalmology
  • Genetics
  • Endocrinology

Background:

  • Diabetic retinopathy (DR) is a major diabetes complication reaching epidemic levels globally.
  • Current management focuses on glycemic control, but understanding DR's genetic basis is key for novel treatments.
  • Genomic medicine is increasingly applied to complex diseases like diabetes and age-related macular degeneration.

Purpose of the Study:

  • To review the current state of genetic studies in diabetic retinopathy.
  • To discuss reported genetic findings in the context of biochemical, cell biological, and therapeutic advances.
  • To propose a consortium for genetic studies in India to identify DR susceptibility loci.

Main Methods:

  • Review of current genetic investigations including linkage studies, candidate gene approaches, and genome-wide association studies.
  • Discussion of next-generation sequencing, high-throughput genomic technologies, and bioinformatics tools.
  • Proposal for a collaborative consortium with uniform clinical phenotyping and data collection guidelines.

Main Results:

  • The genetic contribution to DR initiation and progression is recognized, but specific genes and variants remain elusive.
  • Ongoing investigations aim to identify DR susceptibility loci.
  • Genomic studies are essential for understanding DR etiology and developing targeted therapies.

Conclusions:

  • Identifying genetic loci for DR susceptibility in the Indian population is feasible through a dedicated consortium.
  • Such studies will improve diagnosis, prognosis, and clinical management of DR.
  • A coordinated approach with standardized data collection is vital for success.