scholarly journals A Cross-Sectional Association Between Bone Mineral Density and Parathyroid Hormone and Other Biomarkers in Community-Dwelling Young Adults: The CARDIA Study

2013 ◽  
Vol 98 (10) ◽  
pp. 4038-4046 ◽  
Author(s):  
Akira Fujiyoshi ◽  
Lynda E. Polgreen ◽  
Daniel L. Hurley ◽  
Myron D. Gross ◽  
Stephen Sidney ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Young Adults ◽  
Bone Mineral ◽  
Association Studies ◽  
Community Dwelling ◽  
Whole Body ◽  
Inverse Association ◽  
Mineral Density ◽  
Cross Sectional ◽  
Urinary Creatinine

Abstract Context: Most association studies of bone-related biomarkers (BBMs) with bone mineral density (BMD) have been conducted in postmenopausal women. Objective: We tested whether the following BBMs were cross-sectionally associated with BMD among young adults: serum 1,25-dihydroxyvitamin D (1,25(OH)2D), 25-hydroxyvitamin D (25OHD), PTH, osteocalcin, bone-specific alkaline phosphatase (BAP), and urinary pyridinoline/urinary creatinine. Setting and Participants: We studied 319 individuals (134 women, 149 black, 24–36 years) recruited during 1992 through 1993 in Oakland, California. BMD was assessed with dual-energy x-ray absorptiometry. Linear regression models estimated the association between BMD and each BBM. Results: 1,25(OH)2D was inversely associated with all BMDs. 25OHD was positively, and PTH inversely, associated with lumbar spine, total hip, and whole-body BMD. BAP was inversely associated with left arm, right arm, and whole-body BMD but not with spine or hip BMD. Neither osteocalcin nor urinary pyridinoline/urinary creatinine was associated with BMD. When we placed all BBMs (including 1,25(OH)2D) in one model, the pattern and magnitude of association was similar except for PTH, which was attenuated. The association of BMD and BBMs did not differ significantly by race or sex. Conclusions: In this cross-sectional study of healthy young men and women who had PTH levels considered normal in clinical practice, higher PTH was associated with lower BMD, particularly in weight-bearing sites (ie, spine and hip). The inverse association of 1,25(OH)2D, together with the attenuation of PTH, suggests that the observed association of PTH is mediated by 1,25(OH)2D. BAP was inversely associated with arm BMD. BBMs can be important markers of skeletal activity in young adults, but their clinical role on bone health among this population is yet to be fully determined.

scholarly journals Assessing the Association between Leptin and Bone Mineral Density in HIV-Infected Men

2012 ◽  
Vol 2012 ◽  
pp. 1-5
Author(s):  
Madhu N. Rao ◽  
Morris Schambelan ◽  
Viva W. Tai ◽  
Donald I. Abrams ◽  
Hootan Khatami ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Density ◽  
Bone Mineral ◽  
Fat Distribution ◽  
Whole Body ◽  
Inverse Association ◽  
Mineral Density ◽  
Cross Sectional ◽  
Increased Risk ◽  
The Relationship

HIV-infected individuals are at risk for decreased bone mineral density (BMD). The known risk factors for bone loss do not fully explain the increased risk in this population. There is emerging evidence that leptin, a hormone secreted by adipocytes, plays an important role in bone metabolism. Several studies have assessed the relationship between leptin and bone density in healthy adults, but there are few such studies in HIV-infected individuals. Furthermore, HIV infected individuals on antiretroviral therapy are at increased risk for altered fat distribution, which may impact the relationship between leptin and BMD. In a cross-sectional analysis of data in 107 HIV-infected men, we determined whether serum leptin levels were associated with whole-body BMD and bone mineral content measured by dual-energy X-ray absorptiometry (DEXA), after adjusting for confounders including body fat distribution. We found an inverse association between leptin and bone density in those with peripheral lipoatrophy, defined objectively as <3 kg appendicular fat by DEXA, but no such relationship was seen in those with >3 kg appendicular fat. This result suggests that fat distribution may modify the relationship between leptin and bone density.

scholarly journals Somatic maturation and the relationship between bone mineral variables and types of sports among adolescents: cross-sectional study

2017 ◽  
Vol 135 (3) ◽  
pp. 253-259 ◽  
Author(s):  
Ricardo Ribeiro Agostinete ◽  
Igor Hideki Ito ◽  
Han Kemper ◽  
Carlos Marcelo Pastre ◽  
Mário Antônio Rodrigues-Júnior ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Peak Height ◽  
Cross Sectional Study ◽  
Height Velocity ◽  
Whole Body ◽  
Sectional Study ◽  
Peak Height Velocity ◽  
Mineral Density ◽  
Cross Sectional

ABSTRACT CONTEXT AND OBJECTIVE: Peak height velocity (PHV) is an important maturational event during adolescence that affects skeleton size. The objective here was to compare bone variables in adolescents who practiced different types of sports, and to identify whether differences in bone variables attributed to sports practice were dependent on somatic maturation status. DESIGN AND SETTING: Cross-sectional study, São Paulo State University (UNESP). METHODS: The study was composed of 93 adolescents (12 to 16.5 years old), divided into three groups: no-sport group (n = 42), soccer/basketball group (n = 26) and swimming group (n = 25). Bone mineral density and content were measured using dual-energy x-ray absorptiometry and somatic maturation was estimated through using peak height velocity. Data on training load were provided by the coaches. RESULTS: Adolescents whose PHV occurred at an older age presented higher bone mineral density in their upper limbs (P = 0.018). After adjustments for confounders, such as somatic maturation, the swimmers presented lower values for bone mineral density in their lower limbs, spine and whole body. Only the bone mineral density in the upper limbs was similar between the groups. There was a negative relationship between whole-body bone mineral content and the weekly training hours (β: -1563.967; 95% confidence interval, CI: -2916.484 to -211.450). CONCLUSION: The differences in bone variables attributed to sport practice occurred independently of maturation, while high training load in situations of hypogravity seemed to be related to lower bone mass in swimmers.

scholarly journals Biochemical markers of bone turnover and their relation to forearm bone mineral density in persons of Pakistani and Norwegian background living in Oslo, Norway: The Oslo Health Study

2006 ◽  
Vol 155 (5) ◽  
pp. 693-699 ◽  
Author(s):  
Kristin Holvik ◽  
Haakon E Meyer ◽  
Anne Johanne Søgaard ◽  
Randi Selmer ◽  
Egil Haug ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Vitamin D ◽  
Bone Turnover ◽  
Secondary Hyperparathyroidism ◽  
Ethnic Groups ◽  
Bone Mineral ◽  
Community Dwelling ◽  
Inverse Association ◽  
Mineral Density ◽  
Men And Women

Objective: To evaluate whether Pakistanis have increased bone turnover compared with ethnic Norwegians due to their high prevalence of vitamin D deficiency and secondary hyperparathyroidism, and whether the relation between bone turnover and bone mineral density (BMD) differs between Pakistanis and ethnic Norwegians. Design: A cross-sectional, population-based study conducted in the city of Oslo in 2000–2001. Random samples of 132 community-dwelling Pakistani men and women of ages 40, 45, and 59–60 years, and 580 community-dwelling Norwegian men and women of ages 45 and 59–60 years are included in this substudy. Methods: Venous serum samples were drawn for measurements of markers of the vitamin D endocrine system and the bone turnover markers osteocalcin (s-OC), bone alkaline phosphatase (s-bone ALP), and tartrate-resistant acid phosphatase (s-TRACP). BMD was measured at the forearm by single-energy X-ray absorptiometry. Results: Pakistanis had higher s-bone ALP compared with Norwegians. Mean (95% CI) age-adjusted levels were 22.5 (21.0, 24.1) U/l in Pakistani men versus 19.3 (18.6, 20.1) U/l in Norwegian men, P < 0.0005, and 20.3 (18.4, 22.1) U/l in Pakistani women versus 16.7 (16.0, 17.4) U/l in Norwegian women, P = 0.001. There tended to be an inverse association between bone turnover and BMD in men and women of both ethnic groups, and it was strongest for s-bone ALP. Overall mean (95% CI) distal BMD decrease was −16 (−20, −11) mg/cm2 per 1 s.d. increase in s-bone ALP (P < 0.0005) when adjusting for age, sex, and ethnicity. Conclusions: Except for somewhat higher s-bone ALP levels in Pakistanis, there were only minor ethnic differences in bone turnover, despite a strikingly different prevalence of secondary hyperparathyroidism. Bone turnover was inversely associated with forearm BMD in both ethnic groups.

Inverse association between bone turnover rate and bone mineral density in community-dwelling men >70 years of age: no major role of sex steroid status

Bone ◽  
2001 ◽  
Vol 29 (3) ◽  
pp. 286-291 ◽  
Author(s):  
S Goemaere ◽  
I Van Pottelbergh ◽  
H Zmierczak ◽  
K Toye ◽  
M Daems ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Turnover ◽  
Bone Mineral ◽  
Turnover Rate ◽  
Community Dwelling ◽  
Sex Steroid ◽  
Inverse Association ◽  
Mineral Density

scholarly journals Reduction of trabecular and cortical volumetric bone mineral density at the proximal femur in patients with acromegaly

2016 ◽  
Vol 174 (2) ◽  
pp. 107-114 ◽  
Author(s):  
Elena Valassi ◽  
Iris Crespo ◽  
Jorge Malouf ◽  
Jaume Llauger ◽  
Anna Aulinas ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Proximal Femur ◽  
Disease Duration ◽  
Quantitative Computed Tomography ◽  
Cross Sectional Study ◽  
Volumetric Bone Mineral Density ◽  
Inverse Association ◽  
Mineral Density ◽  
Cross Sectional

ObjectiveData on dual energy absorptiometry (DXA)-measured bone mineral density (BMD) at the level of the total hip (TH) and femoral neck (FN) in patients with acromegaly (ACRO) are conflicting. Increase in bone size associated with ACRO may limit the reliability of DXA. Our objective is to evaluate trabecular and cortical volumetric BMD (vBMD) across the proximal femur in ACRO patients.DesignCross sectional study in a clinical research center.PatientsThirty-five ACRO patients (19 males; mean age, 48±7 years; BMI, 27.5±4.4 kg/m2; 17 with active disease) and 35 age, gender, and BMI-matched controls.ResultsvBMD was assessed by quantitative computed tomography at the level of the TH, FN, trochanter (TR), and intertrochanteric (IT). Trabecular vBMD was lower in both total and active ACRO as compared with controls (P<0.01). Cortical vBMD was lower in ACRO patients (active and controlled) vs controls at both TH and TR sites (P<0.05). These findings were confirmed when only eugonadal patients were analyzed. Both total cross sectional area (CSA) and average cortical thickness (ACT) were greater in ACRO patients vs controls (P<0.05). An inverse association between disease duration and trabecular vBMD at TH (r=−0.42, P=0.023) and IT (r=−0.41, P=0.026) was also found.ConclusionBoth cortical and trabecular vBMD are reduced at the proximal femur in ACRO patients, regardless of gender, gonadal status, and disease activity. Disease duration is negatively associated with trabecular vBMD at the TH and IT.

Bone mineral density of total body, spine, and femoral neck in children and young adults: A cross-sectional and longitudinal study

2009 ◽  
Vol 9 (9) ◽  
pp. 1451-1458 ◽  
Author(s):  
Pei Wen Lu ◽  
Julie N. Briody ◽  
Graham D. Ogle ◽  
Kate Morley ◽  
Ian R.J. Humphries ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Young Adults ◽  
Longitudinal Study ◽  
Femoral Neck ◽  
Bone Mineral ◽  
Mineral Density ◽  
Cross Sectional ◽  
Children And Young Adults ◽  
Total Body

scholarly journals Associations between cola consumption and bone mineral density in Korean adolescents and young adults: a cross-sectional study using data from the Korea National Health and Nutrition Examination Survey, 2008–2011

2020 ◽  
Vol 9 ◽  
Author(s):  
Yun-A Kim ◽  
Jun-Hyun Yoo
Keyword(s):  
Bone Mineral Density ◽  
Young Adults ◽  
Bone Mineral ◽  
National Health ◽  
Adolescents And Young Adults ◽  
Whole Body ◽  
Nutrition Examination Survey ◽  
Mineral Density ◽  
Korean Adolescents ◽  
Health And Nutrition

Abstract The present study aimed to elucidate the relationship between cola consumption and bone mineral density (BMD) in Korean adolescents and young adults. We used data from the Korea National Health and Nutrition Examination Survey 2008–2011. A total of 2499 adolescents and young adults aged 12–25 years were included. The study participants were classified as cola drinkers and non-cola drinkers according to 24-h dietary recall data. BMD was measured using dual X-ray absorptiometry. In the male population, whole body, whole femur and femoral neck BMD in cola drinkers were lower than that of non-cola drinkers by 4% (95% CI −0⋅071, −0⋅007), 5% (−0⋅092, −0⋅012) and 5% (−0⋅090, −0⋅001), respectively. In both sex groups, cola drinkers had less frequent milk consumption than non-cola drinkers. However, there were no significant differences in cola consumption according to calcium intake in both sexes. In conclusion, cola intake and BMD were inversely associated with Korean male adolescents and young adults. Considering the importance of peak bone mass attainment at adolescents and the increasing trend in carbonated beverage consumption in South Korea, further studies are needed to elucidate the causality between cola intake and lower BMD.

scholarly journals Sex-specific and age-specific characteristics of body composition and its effect on bone mineral density in adults in southern China: a cross-sectional study

BMJ Open ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. e032268
Author(s):  
Zeyu Xiao ◽  
Zhiqiang Tan ◽  
Jingjie Shang ◽  
Yong Cheng ◽  
Yongjin Tang ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Body Composition ◽  
Linear Regression ◽  
Bone Mineral ◽  
Lean Mass ◽  
Cross Sectional Study ◽  
Whole Body ◽  
Sectional Study ◽  
Mineral Density ◽  
Cross Sectional

ObjectivesThis study was an attempt to investigate the variation trend of body composition with ageing and explore the association between regional body composition and bone mineral density (BMD).DesignCross-sectional study.Setting and participantsA total of 5749 healthy adults aged 20–95 years was recruited from 2004 to 2017.Primary outcome measuresWhole-body lean mass (LM), fat mass (FM), android FM, gynoid FM, appendicular lean mass (ALM) and BMD in the lumbar spine, femoral neck and total hip were obtained by dual-energy X-ray absorptiometry (DXA). The android/gynoid fat mass ratio (A/G FMR) based on DXA scan was calculated as an indicator of adipose distribution. Pearson correlation and multiple linear regression analyses were used to determine the associations between body composition, adipose distribution, and BMD of each skeletal site.ResultsWhole-body FM, percentage of whole-body FM, Android FM and A/G FMR consistently increased with age in both genders, especially in women, and ALM began to decrease in the fifth decade for both men and women. In multivariable linear regression models with age, body mass index, A/G FMR and ALM as predictor variables, ALM was associated with the most BMD variance of all skeletal sites in men (standard β ranged from 0.207 to 0.405, p<0.001), although not the largest but still a positive predictor of BMD in women (standard β ranged from 0.074 to 0.186, p<0.05). A/G FMR was an inverse predictor of BMD at all skeletal sites for women (standard β ranged from −249 to −0.052, p<0.01) but not in men.ConclusionsIn this large cohort of Chinese adults, ALM had a strong positive association with BMD in both genders. A/G FMR as an indicator of central adipose accumulation was inversely associated with BMD in women but not in men.

scholarly journals Association of dietary and serum vitamin E with bone mineral density in middle-aged and elderly Chinese adults: a cross-sectional study

2015 ◽  
Vol 115 (1) ◽  
pp. 113-120 ◽  
Author(s):  
Wen-qi Shi ◽  
Jun Liu ◽  
Yi Cao ◽  
Ying-ying Zhu ◽  
Ke Guan ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Vitamin E ◽  
Lumbar Spine ◽  
Dietary Intake ◽  
Bone Mineral ◽  
Serum Vitamin ◽  
Whole Body ◽  
Mineral Density ◽  
Chinese Adults ◽  
Cross Sectional

AbstractPrevious studies have suggested that vitamin E (VE) may affect bone health, but the findings have been inconclusive. We examined the relationship between VE status (in both diet and serum) and bone mineral density (BMD) among Chinese adults. This community-based study included 3203 adults (2178 women and 1025 men) aged 40–75 years from Guangzhou, People’s Republic of China. General and dietary intake information were collected using structured questionnaire interviews. The serum α-tocopherol (TF) level was quantified by reversed-phase HPLC. The BMD of the whole body, the lumbar spine and left hip sites (total, neck, trochanter, intertrochanter and Ward’s triangle) were measured using dual-energy X-ray absorptiometry. In women, the dietary intake of VE was significantly and positively associated with BMD at the lumbar spine, total hip, intertrochanter and femur neck sites after adjusting for covariates (Ptrend: 0·001–0·017). Women in quartile 3 of VE intake typically had the highest BMD; the covariate-adjusted mean BMD were 2·5, 3·06, 3·41 and 3·54 % higher, respectively, in quartile 3 (v. 1) at the four above-mentioned sites. Similar positive associations were observed between cholesterol-adjusted serum α-TF levels and BMD at each of the studied bone sites (Ptrend: 0·001–0·022). The covariate-adjusted mean BMD were 1·24–4·83 % greater in quartile 4 (v. 1) in women. However, no significant associations were seen between the VE levels (dietary or serum) and the BMD at any site in men. In conclusion, greater consumption and higher serum levels of VE are associated with greater BMD in Chinese women but not in Chinese men.

scholarly journals Serum 25-hydroxyvitamin D concentrations in 16-year-old Icelandic adolescent and its association with bone mineral density

2020 ◽  
Vol 23 (8) ◽  
pp. 1329-1333 ◽  
Author(s):  
SL Gudmundsdottir ◽  
H Hrafnkelsson ◽  
EL Sigurdsson ◽  
E Johannsson
Keyword(s):  
Bone Mineral Density ◽  
Bone Mineral ◽  
Cross Sectional Study ◽  
Whole Body ◽  
Mineral Density ◽  
Cross Sectional ◽  
Hydroxyvitamin D ◽  
Potential Association ◽  
Volumetric Bmd ◽  
25 Hydroxyvitamin D

AbstractObjective:The aim of the study was to assess the potential association between serum 25-hydroxyvitamin D (25(OH)D) and whole-body bone mineral density (BMD) among 16-year-old adolescents and to study the prevalence of 25(OH)D insufficiency, defined as concentration under 50 nmol/l.Design:A cross-sectional study.Setting:Reykjavik, Iceland, latitude 64°08′N. Measurements took place in the Icelandic Heart Association's research lab during April–June 2015.Participants:In total, 411 students in Reykjavik, Iceland, were invited to participate, 315 accepted the invitation (76·6 %) and 289 had valid data (mainly Caucasian).Results:25(OH)D < 50 nmol/l was observed in 70 % of girls and 66·7 % of boys. 25(OH)D ≥ 50 nmol/l was significantly associated with higher whole-body BMD after adjusting for the influence of sex, height, fat mass and lean mass. A linear relationship between 25(OH)D and whole-body BMD was significant for 25(OH)D < 50 nmol/l (n 199, P < 0·05) but NS for 25(OH)D ≥ 50 nmol/l (n 86, P = 0·48).Conclusions:Our results are in line with some but not all previous studies on the relationship between BMD and 25(OH)D in adolescents. The observed difference in BMD between those with above v. below a 25(OH)D concentration of 50 nmol/l was of about a fifth of one SD, which may have a clinical relevance as one SD decrease in volumetric BMD has been associated with a 89 % increase in 2 years risk of fracture. Icelandic adolescents should be encouraged to increase their vitamin D intake as it is possible that their current intake is insufficient to achieve optimal peak bone mass.

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