Effects of vitamin D on insulin and glucagon secretion in non-insulin-dependent diabetes mellitus

Eric Orwoll, Matthew Riddle, Melvin Prince

Research output: Contribution to journalArticle

136 Citations (Scopus)

Abstract

Vitamin D has been shown to increase insulin release from pancreatic islet cells in vitro, and to improve insulin secretion in vitamin D-deficient animals. Few attempts have been made to evaluate this issue directly in humans. We studied 35 otherwise healthy diabetic subjects in the early spring at the seasonal nadir of 25-hydroxyvitamin D [25(OH)D] concentrations (mean 35 ±7 nmol/L). Fasting glucose, insulin, C-peptide, and glucagon concentrations, and their responses to Sustacal stimulation were not related to indexes of mineral metabolism. In 20 subjects, a double-blinded, placebo-controlled, crossover trial of 1,25-dihydroxyvitamin D [1,25(OH)2D] treatment (1 μg/ d for 4 d) had no effect on fasting or stimulated glucose, insulin, C-peptide, or glucagon concentrations. However, insulin and C-peptide responses to Sustacal after 1,25(OH)2D treatment were related to duration of diabetes (r2 = 0.28, P = 0.052 and r2 = 0.25, P = 0.002, respectively) in that short duration correlated with improvement after 1,25(OH)2D treatment. Hence, vitamin D nutrition, or 1,25(OH)2D therapy, had no major effect on glucose homeostasis in non-insulin-dependent diabetes mellitus.

Original languageEnglish (US)
Pages (from-to)1083-1087
Number of pages5
JournalAmerican Journal of Clinical Nutrition
Volume59
Issue number5
StatePublished - May 1994
Externally publishedYes

Fingerprint

glucagon
vitamin D
Glucagon
noninsulin-dependent diabetes mellitus
Vitamin D
Type 2 Diabetes Mellitus
insulin
secretion
Insulin
C-Peptide
islets of Langerhans
peptides
glucose
fasting
Islets of Langerhans
Glucose
Fasting
mineral metabolism
duration
insulin secretion

Keywords

  • Diabetes
  • Glucagon
  • Insulin
  • Vitamin D

ASJC Scopus subject areas

  • Food Science
  • Medicine (miscellaneous)

Cite this

Effects of vitamin D on insulin and glucagon secretion in non-insulin-dependent diabetes mellitus. / Orwoll, Eric; Riddle, Matthew; Prince, Melvin.

In: American Journal of Clinical Nutrition, Vol. 59, No. 5, 05.1994, p. 1083-1087.

Research output: Contribution to journalArticle

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