期刊
ARQUIVOS BRASILEIROS DE ENDOCRINOLOGIA E METABOLOGIA
卷 58, 期 5, 页码 444-451出版社
SBEM-SOC BRASIL ENDOCRINOLOGIA & METABOLOGIA
DOI: 10.1590/0004-2730000003333
关键词
Osteocalcin; undercarboxylated osteocalcin; metabolic syndrome; glucose; energy metabolism; diabetes; obesity; leptin; insulin; adiponectin
Osteocalcin is a bone matrix protein that has been associated with several hormonal actions on energy and glucose metabolism. Animal and experimental models have shown that osteocalcin is released into the bloodstream and exerts biological effects on pancreatic beta cells and adipose tissue. Undercarboxylated osteocalcin is the hormonally active isoform and stimulates insulin secretion and enhances insulin sensitivity in adipose tissue and muscle. Insulin and leptin, in turn, act on bone tissue, modulating the osteocalcin secretion, in a traditional feedback mechanism that places the skeleton as a true endocrine organ. Further studies are required to elucidate the role of osteocalcin in the regulation of glucose and energy metabolism in humans and its potential therapeutic implications in diabetes, obesity and metabolic syndrome.
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