Hypothesis: poly-(R)-3-hydroxybutyrate is a major factor in intraocular pressure

Med Hypotheses. 2009 Sep;73(3):398-401. doi: 10.1016/j.mehy.2008.10.036. Epub 2009 May 1.

Abstract

Short chain poly-(R)-3-hydroxybutyrate (cPHB) is a ubiquitous molecule that readily adheres to others, that is covalently added to proteins and that forms, with polyphosphate, ion channels. High levels of cPHB have been implicated in atherosclerosis and in diabetes. Here, we propose a hypothesis in which cPHB adheres to filaments in the extracellular matrix and this raises intraocular pressure. In a corollary, we propose that a positive feedback relationship between cPHB adherence to filaments, raised IOP and filament stretching constitutes a switch.

MeSH terms

  • Cornea / physiology*
  • Extracellular Matrix / physiology*
  • Humans
  • Hydroxybutyrates / metabolism*
  • Intraocular Pressure / physiology*
  • Models, Biological*
  • Polyesters / metabolism*

Substances

  • Hydroxybutyrates
  • Polyesters
  • poly-beta-hydroxybutyrate