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Bone mineral density in femoral neck is positively correlated to circulating insulin-like growth factor (IGF)-I and IGF-binding protein (IGFBP)-3 in Swedish men.

https://arctichealth.org/en/permalink/ahliterature190890
Source
Calcif Tissue Int. 2002 Jan;70(1):22-9
Publication Type
Article
Date
Jan-2002
Author
P. Gillberg
H. Olofsson
H. Mallmin
W F Blum
S. Ljunghall
A G Nilsson
Author Affiliation
Department of Medical Sciences, University Hospital, S-75185 Uppsala, Sweden.
Source
Calcif Tissue Int. 2002 Jan;70(1):22-9
Date
Jan-2002
Language
English
Publication Type
Article
Keywords
Absorptiometry, Photon
Adult
Aged
Aged, 80 and over
Aging - physiology
Bone Density
Femur Neck - metabolism - radiography
Gonadal Steroid Hormones - blood
Humans
Insulin-Like Growth Factor Binding Protein 3 - blood
Insulin-Like Growth Factor I - analysis
Lumbar Vertebrae - metabolism - radiography
Male
Middle Aged
Regression Analysis
Sweden
Abstract
Studies on the hormonal regulation of bone metabolism in men have indicated covariation between insulin-like growth factor-I (IGF-I) and sex hormones with bone mineral density (BMD). In this study the relationships between BMD in total body, lumbar spine, femoral neck, distal and ultradistal (UD) radius and circulating levels of IGFs, IGF binding proteins (IGFBPs), and sex steroids were investigated in 55 Swedish men between 22 and 85 (52 +/- 18, mean +/- SD) years of age. BMD in total body, distal and UD radius, and femoral neck was positively correlated with serum IGF-I (r = 0.31 to 0.49), IGF-II (r = 0.32 to 0.48), IGFBP-3 (r = 0.37 to 0.53), and free androgen index (FAI) (r = 0.32 to 0.40), and negatively with IGFBP-1 (r = -0.37 to -0.41) and IGFBP-2 (r = -0.29 to -0.41) levels. A positive correlation was observed between BMD in femoral neck and estradiol/SHBG ratio (r = 0.34, P = 0.01). Age correlated negatively with serum IGF-I, IGF-II, IGFBP-3, FAI, estradiol/SHBG ratio, and BMD in total body, distal and UD radius, and femoral neck, and positively with IGFBP-1, IGFBP-2, and SHBG levels. According to stepwise multiple regression analyses, a combination of weight, IGFBP-3, and testosterone accounted for 43% of the variation in BMD in femoral neck, 34% in ultradistal radius and 48% in total body (P
PubMed ID
11907704 View in PubMed
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Diet, bone mass, and osteocalcin: a cross-sectional study.

https://arctichealth.org/en/permalink/ahliterature62031
Source
Calcif Tissue Int. 1995 Aug;57(2):86-93
Publication Type
Article
Date
Aug-1995
Author
K. Michaëlsson
L. Holmberg
H. Mallmin
A. Wolk
R. Bergström
S. Ljunghall
Author Affiliation
Department of Orthopaedics, Central Hospital, Västerås, Sweden.
Source
Calcif Tissue Int. 1995 Aug;57(2):86-93
Date
Aug-1995
Language
English
Publication Type
Article
Keywords
Adult
Age Factors
Aged
Bone Density
Calcium, dietary
Comparative Study
Cross-Sectional Studies
Diet
Diet Records
Energy intake
Female
Femur
Humans
Middle Aged
Multivariate Analysis
Osteocalcin - blood
Premenopause
Questionnaires
Regression Analysis
Research Support, Non-U.S. Gov't
Spine
Abstract
To determine the relationships among nutrients intake, bone mass, and bone turnover in women we have investigated these issues in a population-based, cross-sectional, observational study in one county in central Sweden. A total of 175 women aged 28-74 at entry to the study were included. Dietary assessment was made by both a semiquantitative food frequency questionnaire and by four 1-week dietary records. Dual energy X-ray absorptiometry was performed at five sites: total body, L2-L4 region of the lumbar spine, and three regions of the proximal femur. Serum concentrations of osteocalcin (an osteoblast-specific protein reflecting bone turnover) were measured by a radioimmunoassay. Linear regression models, with adjustment for possible confounding factors were used for statistical analyses. A weak positive association was found between dietary calcium intake as calculated from the semiquantitative food frequency questionnaire and total body bone mineral density (BMD) among premenopausal women. No association emerged between dietary calcium intake and site-specific bone mass, i.e., lumbar spine and femoral neck, nor was an association found between dietary calcium intake and serum osteocalcin. BMD at some of the measured sites was positively associated with protein and carbohydrates and negatively associated with dietary fat. In no previous studies of diet and bone mass have dietary habits been ascertained so carefully and the results adjusted for possible confounding factors. Neither of the two methods of dietary assessment used in this study revealed any effect of calcium intake on BMD at fracture-relevant sites among these healthy, mostly middle-aged women.(ABSTRACT TRUNCATED AT 250 WORDS)
PubMed ID
7584880 View in PubMed
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