Eating Restraint Is Negatively Associated with Biomarkers of Bone Turnover but Not Measurements of Bone Mineral Density in Young Women

2006 ◽  
Vol 106 (7) ◽  
pp. 1095-1101 ◽  
Author(s):  
Sharon M. Nickols-Richardson ◽  
Jeannemarie M. Beiseigel ◽  
Frank C. Gwazdauskas
Author(s):  
Emma T Callegari ◽  
Suzanne M Garland ◽  
Alexandra Gorelik ◽  
Cherie Y Chiang ◽  
John D Wark

Background Bone turnover markers (BTMs) may provide insight into bone health in young women, but have been little studied in this demographic. We aimed to explore the association between body composition, hormonal contraception, bone mineral density and biochemical parameters and BTMs in young women. Methods Participants were community-dwelling females aged 16–25 years, living in Victoria, Australia. Carboxy-terminal cross-linking telopeptide of type 1 collagen (CTX) and total procollagen type 1 N-propeptide (P1NP) were analysed on the Roche Elecsys automated analyzer. A total of 305 were evaluated, after excluding participants with medical conditions or medications (except hormonal contraceptives), which may affect bone metabolism. Results Median (Q1, Q3) BTM values were 540 (410, 690) ng/L for CTX and 61.7 (46.2, 83.7) µg/L for P1NP. Serum CTX and P1NP were inversely associated with chronological age ( P < 0.001), transferrin ( P < 0.020) and serum dehydroepiandrosterone sulphate concentration ( P < 0.001). BTM values were up to 22% lower in combined oral contraceptive (COC) pill users ( P < 0.001). Serum CTX was inversely associated with per cent body fat ( P = 0.009) and tibial cortical volumetric bone mineral density (vBMD; P = 0.003). Serum P1NP concentrations were 23  µg/L higher in participants who reported using an osteopath in the previous year ( P = 0.007). Conclusions These data suggest that BTMs are influenced by age, COC use, body composition, iron status and hormonal profiles. Higher CTX values were associated with lower tibial cortical vBMD. Examining BTMs in relation to interventions aimed at improving bone health in young women is warranted.


2020 ◽  
Author(s):  
Wu Han ◽  
Yufan Zhang ◽  
Wenbin Zhou ◽  
Guolong Zhang ◽  
Jindi Wang ◽  
...  

Abstract Background: There is growing evidence of a complex interaction between type 2 diabetes (T2DM) and osteoporosis. The purpose of this study was to further study the relationship between Bone turnover markers (BTMs) and fasting blood glucose (FBG) in postmenopausal patients with type 2 diabetes and to analyze the effect of hyperglycemia on bone metabolism.Methods: Six hundred and twelve (612) postmenopausal women were included, including one hundred and seven (107) subjects with T2DM and five hundred and five (505) subjects without diabetes. Bone mineral density (BMD) was measured by DXA (dual-energy X-ray absorptiometry). Markers of bone formation Type 1 collagen N-terminal peptide (P1NP) and resorption C-telopeptide of type l collagen (CTX) were quantified.Results: Compared to controls, postmenopausal women with diabetes had a higher prevalence of previous osteoporosis fracture (27.1% vs. 17.4% for diabetic and nondiabetic women, respectively) and a higher BMD. The P1NP level in women with T2DM was 49.451 ng/ml, while in N-DM individuals, it was 58.633 ng/ml, (p = 0.017). The CTX level in women with T2DM was 0.325 ng/ml, while in N-DM individuals, it was 0.412 ng/ml (p=0.039). In addition, P1NP was significantly negatively associated with age (β=-0.590; p= 0.002) and FBG (β=-1.950; p = 0.035). CTX was negatively associated with FBG (β=-0.029; p = 0.015).Conclusions: T2DM was associated with higher BMD and paradoxically, with an increased risk of fracture. Postmenopausal women with T2DM had lower bone turnover than controls. With increased levels of FBG, bone formation and bone resorption were reduced, and the overall bone turnover level was reduced.


2014 ◽  
Author(s):  
Mingo Dominguez Maria Luisa de ◽  
Sonsoles Guadalix Iglesias ◽  
Maria Begona Lopez Alvarez ◽  
Guillermo Martinez Diaz-Guerra ◽  
Federico Hawkins Carranza

2020 ◽  
Author(s):  
Lungwani Muungo

Although it is well established that estrogen deficiencycauses osteoporosis among the postmenopausalwomen, the involvement of estrogen receptor (ER) in itspathogenesis still remains uncertain. In the presentstudy, we have generated rats harboring a dominantnegative ERa, which inhibits the actions of not only ERabut also recently identified ERb. Contrary to our expectation,the bone mineral density (BMD) of the resultingtransgenic female rats was maintained at the same levelwith that of the wild-type littermates when sham-operated.In addition, ovariectomy-induced bone loss wasobserved almost equally in both groups. Strikingly, however,the BMD of the transgenic female rats, after ovariectomized,remained decreased even if 17b-estradiol(E2) was administrated, whereas, in contrast, the decreaseof littermate BMD was completely prevented byE2. Moreover, bone histomorphometrical analysis ofovariectomized transgenic rats revealed that the higherrates of bone turnover still remained after treatmentwith E2. These results demonstrate that the preventionfrom the ovariectomy-induced bone loss by estrogen ismediated by ER pathways and that the maintenanceof BMD before ovariectomy might be compensatedby other mechanisms distinct from ERa and ERbpathways.


2019 ◽  
Vol 17 (4) ◽  
pp. 102-106
Author(s):  
M. Yu. Smetanin ◽  
◽  
S. Yu. Nurgalieva ◽  
N. Yu. Kononova ◽  
L. T. Pimenov ◽  
...  

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