نتایج جستجو برای: undercarboxylated osteocalcin

تعداد نتایج: 4017  

Journal: :Annals of nutrition & metabolism 2007
Katharina Nimptsch Susanne Hailer Sabine Rohrmann Kurt Gedrich Gunther Wolfram Jakob Linseisen

BACKGROUND/AIMS To assess dietary and nondietary determinants of serum undercarboxylated osteocalcin (ucOC) as a measure of vitamin K status. METHODS UcOC and total intact osteocalcin (iOC) concentrations were determined by specific ELISA tests in serum samples of 231 male and 320 female participants (18-81 years) of the representative, cross-sectional Bavarian Food Consumption Survey II. Det...

2012
Giovanni Lombardi Patrizia Lanteri Rosa Graziani Alessandra Colombini Giuseppe Banfi Roberto Corsetti

Cycling is a not weight-bearing activity and is known to induce bone resorption. Stage races are really strenuous endurance performances affecting the energy homeostasis. The recently highlighted link, in the co-regulation of bone and energy metabolism, demonstrates a central role for the equilibrium between carboxylated and undercarboxylated forms of osteocalcin. Aim of this study was to under...

Journal: :Cell metabolism 2016
Paula Mera Kathrin Laue Mathieu Ferron Cyril Confavreux Jianwen Wei Marta Galán-Díez Alain Lacampagne Sarah J Mitchell Julie A Mattison Yun Chen Justine Bacchetta Pawel Szulc Richard N Kitsis Rafael de Cabo Richard A Friedman Christopher Torsitano Timothy E McGraw Michelle Puchowicz Irwin Kurland Gerard Karsenty

Circulating levels of undercarboxylated and bioactive osteocalcin double during aerobic exercise at the time levels of insulin decrease. In contrast, circulating levels of osteocalcin plummet early during adulthood in mice, monkeys, and humans of both genders. Exploring these observations revealed that osteocalcin signaling in myofibers is necessary for adaptation to exercise by favoring uptake...

2011
Alexander N. Kapustin Catherine M. Shanahan

Osteocalcin, or bone Gla protein, is a small protein secreted by osteoblasts that can undergo -carboxylation. The -carboxylated form binds hydroxyapatite and is abundant in bone extracellular matrix. In contrast, the undercarboxylated circulating form has been implicated as a novel hormone and positive regulator of glucose homeostasis. Importantly, osteocalcin expression has been described in c...

Journal: :Arquivos brasileiros de endocrinologia e metabologia 2014
Leila C B Zanatta Cesar L Boguszewski Victoria Z C Borba Carolina A M Kulak

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 enha...

Journal: :Journal of Clinical Endocrinology & Metabolism 1997

2013
Brielle V. Rosa Hugh T. Blair Mark H. Vickers Keren E. Dittmer Patrick C. H. Morel Cameron G. Knight Elwyn C. Firth

Exercise during pregnancy may have long-lasting effects on offspring health. Musculoskeletal growth and development, metabolism, and later-life disease risk can all be impacted by the maternal environment during pregnancy. The skeleton influences glucose handling through the actions of the bone-derived hormone osteocalcin. The purpose of this study was to test the effects of moderate maternal e...

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