Vitamin D and the kidney

Research output: Chapter in Book/Report/Conference proceedingChapter

3 Citations (Scopus)

Abstract

The kidney has a unique function in mineral homeostasis and plays a vital role in the control of plasma calcium and phosphorus. The kidney plays a vital role in the conservation of calcium and phosphorus. Besides being the site of synthesis of 1,25(OH)2D3, the kidney responds to the hormone by increasing the efficiency of calcium and phosphorus reabsorption. 25-Hydroxyvitamin D3-1α-hydroxylase is a multicomponent, cytochrome P-450-containing enzyme in the mitochondria of renal proximal tubular cells. Elements of the calcium transport systems including calbindin D28K, calbindin D9K, the epithelial calcium channel, and the plasma membrane calcium pump all localize to the distal portion of the nephron and are regulated directly or indirectly by 1,25(OH)2D3. The reabsorption of calcium in the kidney is controlled by several factors such as the filtered load of sodium, urine flow, and the activity of several hormones, most notably, parathyroid hormone (PTH), 1,25-dihydroxyvitamin D (1,25(OH)2D) and calcitonin, in addition to others. The kidney is the major site of synthesis of 1,25 (OH)2D, the active, hormonal form of vitamin D. Finally, the kidney has an equally important role in the control of plasma phosphate, and the filtration and reabsorption of phosphate.

Original languageEnglish (US)
Title of host publicationVitamin D
PublisherElsevier Inc.
Pages471-491
Number of pages21
ISBN (Print)9780123819789
DOIs
StatePublished - 2011

Fingerprint

Vitamin D
Kidney
Calcium
Phosphorus
S100 Calcium Binding Protein G
Phosphates
Calbindin 1
Hormones
Calcifediol
Nephrons
Calcitonin
Calcium Channels
Mixed Function Oxygenases
Parathyroid Hormone
Cytochrome P-450 Enzyme System
Minerals
Mitochondria
Homeostasis
Sodium
Cell Membrane

ASJC Scopus subject areas

  • Dentistry(all)
  • Medicine(all)

Cite this

Vitamin D and the kidney. / Tebben, Peter; Kumar, Rajiv.

Vitamin D. Elsevier Inc., 2011. p. 471-491.

Research output: Chapter in Book/Report/Conference proceedingChapter

Tebben, Peter ; Kumar, Rajiv. / Vitamin D and the kidney. Vitamin D. Elsevier Inc., 2011. pp. 471-491
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