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Longitudinal Multi-Organ Transcriptomic Atlas of Salt-Induced Hypertension.

Ratnakar Tiwari1, Olha Kravtsova1, Lashodya V Dissanayake1

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Summary
This summary is machine-generated.

Salt-sensitive hypertension causes organ damage through dynamic molecular changes. This study reveals tissue-specific transcriptional programs and identifies potential precision therapies to combat disease progression.

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Area of Science:

  • Cardiovascular Biology
  • Genomics
  • Translational Medicine

Background:

  • Salt-sensitive hypertension is a common condition where high salt intake elevates blood pressure and damages organs.
  • Understanding the molecular mechanisms of this damage across different organs over time is crucial for developing effective treatments.

Purpose of the Study:

  • To create a detailed molecular map of salt-sensitive hypertension across multiple organs over time.
  • To identify conserved and organ-specific molecular pathways involved in disease progression.
  • To discover potential therapeutic targets for precision medicine.

Main Methods:

  • Generated a longitudinal transcriptomic atlas from rat kidneys, heart, and liver across four disease stages.
  • Performed comprehensive bioinformatic analysis of transcriptional programs and upstream regulators.
  • Integrated findings with human GWAS and compound-transcriptome data for translational insights.

Main Results:

  • Identified both shared and tissue-specific transcriptional changes that evolve with hypertension.
  • Observed distinct early immune and metabolic responses in kidney medulla and cortex.
  • Revealed conserved inflammatory and fibrotic signatures across organs and identified kinase inhibitors as potential therapeutics.

Conclusions:

  • Defined the temporal and tissue-specific molecular remodeling in salt-sensitive hypertension.
  • Emphasized the necessity of precision interventions to prevent organ damage in hypertensive disease.