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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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Muscle strength correlates with total body bone mineral density in young women but not in men.

https://arctichealth.org/en/permalink/ahliterature52051
Source
Scand J Med Sci Sports. 2004 Feb;14(1):24-9
Publication Type
Article
Date
Feb-2004
Author
E. Ribom
O. Ljunggren
K. Piehl-Aulin
S. Ljunghall
L E Bratteby
G. Samuelson
H. Mallmin
Author Affiliation
Department of Surgical Sciences, Uppsala University, 751 85 Uppsala, Sweden. eva.ribon@surgsci.uu.se
Source
Scand J Med Sci Sports. 2004 Feb;14(1):24-9
Date
Feb-2004
Language
English
Publication Type
Article
Keywords
Adolescent
Adult
Age Factors
Aging - physiology
Body Composition - physiology
Bone Density - physiology
Comparative Study
Female
Hand - physiology
Humans
Knee - physiology
Life Style
Male
Muscle, Skeletal - physiology
Regression Analysis
Research Support, Non-U.S. Gov't
Sex Factors
Sweden
Abstract
BACKGROUND: Osteoporosis is a growing health problem. One of the proposed reasons for this is a more sedentary lifestyle. The aim of this study was to investigate the associations between muscle strength and total body bone mineral density (TBMD) in young adults at expected peak bone mass. METHODS: Sixty-four women and 61 men (total 125) 21 years of age were included. Handgrip strength, isokinetic knee-flexion and -extension muscle strength, TBMD, and body composition were measured. RESULTS: Univariate regression analyses showed that knee flexion and extension explained almost 30% of the variation in TBMD in women, whereas handgrip strength was not associated with TBMD. In men, no correlation between any measures of muscle strength and TBMD was evident. Stepwise regression analysis showed that knee-flexion and -extension muscle strength in women were associated with TBMD, R2=0.27. In men, lean body mass, fat mass, weight, and height were predictors for TBMD, R2=0.43, whereas muscle strength did not affect the prediction of TBMD. CONCLUSIONS: Muscle strength at weight-bearing sites is related to TBMD in women, whereas body composition is related to TBMD in men. The association of lower limb strength on TBMD only in young women indicates a gender difference.
Notes
Comment In: Scand J Med Sci Sports. 2004 Feb;14(1):114971423
PubMed ID
14723784 View in PubMed
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Organochlorines and bone mineral density in Swedish men from the general population.

https://arctichealth.org/en/permalink/ahliterature195327
Source
Osteoporos Int. 2000;11(12):1036-42
Publication Type
Article
Date
2000
Author
A W Glynn
K. Michaëlsson
P M Lind
A. Wolk
M. Aune
S. Atuma
P O Darnerud
H. Mallmin
Author Affiliation
Toxicology Division, Swedish National Food Administration, Uppsala.
Source
Osteoporos Int. 2000;11(12):1036-42
Date
2000
Language
English
Publication Type
Article
Keywords
Adult
Aged
Androgen Antagonists - metabolism
Bone Density - drug effects
DDT - adverse effects - blood
Environmental Pollutants - adverse effects - blood
Estrogen Receptor Modulators - metabolism
Estrogens - metabolism
Hexachlorobenzene - blood - pharmacology
Humans
Male
Middle Aged
Polychlorinated biphenyls - adverse effects - blood
Regression Analysis
Sweden
Abstract
Persistent organochlorines (POCs), such as polychlorinated biphenyls (PCBs) and DDT, are present at relatively high concentrations in food and show estrogenic, anti-estrogenic or anti-androgenic activity in biological test systems. Because bone mineral density (BMD) in men is influenced by sex hormones, we looked for associations between BMD and serum concentrations of POCs in 115 men (mean age 63 years, range 40-75 years) from the general Swedish population. Ten PCB congeners, five DDT isomers, hexachlorobenzene, three hexachlorocyclohexane isomers, trans-nonachlor and oxychlordane were analyzed by gas chromatography. Quantitative bone measurements were performed by dual-energy X-ray absorptiometry at three sites: whole body, the L2-L4 region of the lumbar spine, and the neck region of the proximal femur, as well as by quantitative ultrasound on the left os calcis (broadband ultrasound attenuation (BUA) and speed of sound (SOS)). After adjustment for confounding factors in linear regression analyses we found no strong association between serum concentrations of single POCs and the five BMD and ultrasound variables. When POCs were grouped according to hormonal activity (estrogenic, anti-estrogenic, anti-androgenic) and the study subjects were divided into organochlorine concentration quartiles, a weak association was indicated between increased serum concentrations of p,p'-DDE (antiandrogenic) and decreased BMD, BUA and SOS. This may suggest that p,p'-DDE could cause negative effects on bone density, but the findings might also be due to chance since multiple comparisons were made in the statistical analysis. Overall our results do not suggest that the studied POCs caused major effects on bone density in our study group.
PubMed ID
11256895 View in PubMed
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Screening for osteopenia and osteoporosis: selection by body composition.

https://arctichealth.org/en/permalink/ahliterature213486
Source
Osteoporos Int. 1996;6(2):120-6
Publication Type
Article
Date
1996
Author
K. Michaëlsson
R. Bergström
H. Mallmin
L. Holmberg
A. Wolk
S. Ljunghall
Author Affiliation
Department of Orthopaedics, Central Hospital, Västerås, Sweden.
Source
Osteoporos Int. 1996;6(2):120-6
Date
1996
Language
English
Publication Type
Article
Keywords
Absorptiometry, Photon
Adult
Aged
Body Composition
Body mass index
Bone Density - physiology
Bone Diseases, Metabolic - diagnosis - etiology - radiography
Cross-Sectional Studies
Female
Humans
Mass Screening
Middle Aged
Osteoporosis - diagnosis - etiology - radiography
Predictive value of tests
Random Allocation
Regression Analysis
Retrospective Studies
Risk factors
Sweden
Abstract
There is a great need for simple means of identifying persons at low risk of developing osteoporosis, in order to exclude them from screening with bone mineral measurements, since this procedure is too expensive and time-consuming for general use in the unselected population. We have determined the relationships between body measure (weight, height, body mass index, lean tissue mass, fat mass, waist-to-hip ratio) and bone mineral density (BMD) in 175 women of ages 28-74 years in a cross-sectional study in a county in central Sweden. Dual-energy X-ray absorptiometry was performed at three sites: total body, L2-4 region of lumbar spine, and neck region of the proximal femur. Using multiple linear regression models, the relationship between the dependent variable, BMD, and each of the body measures was determined, with adjustment for confounding factors. Weight alone, in a multivariate model, explained 28%, 21% and 15% of the variance in BMD of total body, at the lumbar spine and at the femoral neck according to these models. The WHO definition of osteopenia was used to dichotomize BMD, which made it possible, in multivariate logistic regression models, to estimate the risk of osteopenia with different body measures categorized into tertiles. Weight of over 71 kg was associated with a very low risk of being osteopenic compared with women weighing less than 64 kg, with odds ratios (OR) of 0.01 (95% confidence interval (CI) 0.00-0.09), 0.06 (CI 0.02-0.22) and 0.13 (CI 0.04-0.42) for osteopenia of total body, lumbar spine and femoral neck, respectively. Furthermore a sensitivity/specificity analysis revealed that, in this population, a woman weighing over 70 kg is not likely to have osteoporosis. Test specifics of a weight under 70 kg for osteoporosis (BMD less than 2.5 SD compared with normal young women) of femoral neck among the postmenopausal women showed a sensitivity of 0.94, a specificity of 0.36, positive predictive value (PPV) of 0.21, and negative predictive value (NPV) of 0.97. Thus, exclusion of the 33% of women with the highest weight meant only that 3% of osteoporotic cases were missed. The corresponding figures for lumbar spine were sensitivity 0.89, specificity 0.38, PPV 0.33, and NPV 0.91. All women who were defined as being osteoporotic of total body weighed under 62 kg. When the intention was to identify those with osteopenia of total body among the postmenopausal women we attained a sensitivity of 0.92 and a NPV of 0.91 for a weight under 70 kg, whereas we found that weight could not be used as an exclusion criterion for osteopenia of femoral neck and lumbar spine. Our data thus indicate that weight could be used to exclude women from a screening program for postmenopausal osteoporosis.
PubMed ID
8704349 View in PubMed
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