Diabetes, Diabetic Complications, and Phosphate Toxicity: A Scoping Review

Curr Diabetes Rev. 2020;16(7):674-689. doi: 10.2174/1573399815666191104113236.

Abstract

This article presents a scoping review and synthesis of research findings investigating the toxic cellular accumulation of dysregulated inorganic phosphate-phosphate toxicity-as a pathophysiological determinant of diabetes and diabetic complications. Phosphorus, an essential micronutrient, is closely linked to the cellular metabolism of glucose for energy production, and serum inorganic phosphate is often transported into cells along with glucose during insulin therapy. Mitochondrial dysfunction and apoptosis, endoplasmic reticulum stress, neuronal degeneration, and pancreatic cancer are associated with dysregulated levels of phosphate in diabetes. Ectopic calcification involving deposition of calcium-phosphate crystals is prevalent throughout diabetic complications, including vascular calcification, nephropathy, retinopathy, and bone disorders. A low-glycemic, low-phosphate dietary intervention is proposed for further investigations in the treatment and prevention of diabetes and related diabetic pathologies.

Keywords: Diabetes; diabetic nephropathy; diabetic neuropathy; diabetic retinopathy; mitochondria dysfunction; pancreatic cancer; phosphate toxicity; vascular calcification.

Publication types

  • Systematic Review

MeSH terms

  • Cell Physiological Phenomena
  • Cells / metabolism
  • Diabetes Complications / etiology
  • Diabetes Complications / metabolism*
  • Diabetes Complications / prevention & control
  • Diabetes Mellitus / blood
  • Diabetes Mellitus / diet therapy
  • Diabetes Mellitus / prevention & control
  • Diabetes Mellitus / therapy*
  • Glucose / metabolism
  • Humans
  • Micronutrients / adverse effects
  • Micronutrients / blood
  • Micronutrients / metabolism
  • Micronutrients / toxicity
  • Phosphates / adverse effects
  • Phosphates / blood
  • Phosphates / metabolism*
  • Phosphates / toxicity

Substances

  • Micronutrients
  • Phosphates
  • Glucose