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Inflammation and vasopressin hypersecretion in aging.

Kerim Mutig1,2, Svetlana Lebedeva1,3, Prim B Singh4

  • 1Department of Pharmacology, Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, Moscow, Russia.

Frontiers in Endocrinology
|November 10, 2025
PubMed
Summary
This summary is machine-generated.

Chronic underhydration and inflammation in older adults cause persistent vasopressin (VP) release, contributing to age-related diseases. Understanding this mechanism may lead to interventions normalizing VP secretion.

Keywords:
antidiuretic hormonecytokineinflammaginginterleukin - 1 βinterleukin-6microinflammationvasopressin

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Area of Science:

  • Neuroendocrinology
  • Gerontology
  • Molecular Biology

Background:

  • Low-grade inflammation, particularly in the hypothalamus, sensitizes neuroendocrine responses to osmotic stimuli.
  • Chronic underhydration, common in older adults due to reduced thirst, exacerbates this sensitization.
  • Persistent vasopressin (VP) release is driven by these age-related changes.

Purpose of the Study:

  • To reconcile microinflammation concepts with hypothalamic osmosensitivity insights.
  • To propose a model for maladaptive vasopressin (VP) hypersecretion in aging.
  • To inform targeted interventions for age-related diseases.

Main Methods:

  • Review of molecular insights into hypothalamic osmosensitivity.
  • Integration of concepts linking inflammation and neuroendocrine function.
  • Development of a theoretical framework for VP dysregulation.

Main Results:

  • Hypothalamic inflammation sensitizes the neuroendocrine system to osmotic stimuli.
  • VP release is sustained in aging due to underhydration and inflammation.
  • VP activates the hypothalamic-pituitary-adrenal axis, increasing cortisol.
  • Elevated VP and cortisol contribute to metabolic, renal, and cardiovascular disorders.

Conclusions:

  • A model is proposed for maladaptive vasopressin (VP) hypersecretion in aging.
  • This framework highlights the role of inflammation and osmosensitivity.
  • Targeted interventions normalizing VP secretion could mitigate age-related diseases.