γ-Carboxylation of osteocalcin and insulin resistance in older men and women
Author(s) -
M. Kyla Shea,
Caren M. Gundberg,
James B. Meigs,
Gerard E. Dallal,
Edward Saltzman,
Makiko Yoshida,
Paul F. Jacques,
Sarah L. Booth
Publication year - 2009
Publication title -
american journal of clinical nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.608
H-Index - 336
eISSN - 1938-3207
pISSN - 0002-9165
DOI - 10.3945/ajcn.2009.28151
Subject(s) - osteocalcin , insulin resistance , endocrinology , medicine , insulin , biology , alkaline phosphatase , biochemistry , enzyme
The skeletal protein osteocalcin is gamma-carboxylated by vitamin K. High serum uncarboxylated osteocalcin reflects low vitamin K status. In vitro and animal studies indicate that high uncarboxylated osteocalcin is associated with reduced insulin resistance. However, associations between osteocalcin and measures of insulin resistance in humans are less clear.
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