Interrelationships between sclerostin, secondary hyperparathyroidism, and bone metabolism in patients on hemodialysis

2021 ◽  
Author(s):  
Yosuke Nakagawa ◽  
Hirotaka Komaba ◽  
Naoto Hamano ◽  
Hisae Tanaka ◽  
Takehiko Wada ◽  
...  
Keyword(s):  
Bone Turnover ◽  
Bone Metabolism ◽  
Bone Turnover Markers ◽  
Bone Alkaline Phosphatase ◽  
Tartrate Resistant Acid Phosphatase ◽  
Mineral Density ◽  
Intact Pth ◽  
Cross Sectional ◽  
Tracp 5B ◽  
Turnover Markers

Abstract Context Sclerostin is an osteocyte-derived inhibitor of bone formation and is increased in kidney failure, but its role in the pathogenesis of renal bone disease remains unknown. Objective To explore the association of serum sclerostin with bone metabolism in patients undergoing hemodialysis, with a particular focus on parathyroid hormone (PTH)-dependent and PTH-independent pathways. Design Cross-sectional and prospective cohort study. Setting and participants 654 patients undergoing hemodialysis at 10 facilities in Japan. Main outcome measures We employed multivariable linear regression to explore whether sclerostin levels were associated with metacarpal bone mineral density (BMD), intact PTH, bone alkaline phosphatase (BAP), and tartrate-resistant acid phosphatase-5b (TRACP-5b). We employed mediation analyses to explore whether and to what extent the association of PTH with bone turnover markers is mediated by sclerostin. We also compared sclerostin levels between patients with and without previous or incident fractures. Results The median sclerostin level in hemodialysis patients was 3–4-fold higher than that in healthy individuals. Higher sclerostin levels were associated with higher metacarpal BMD and lower levels of intact PTH, BAP, and TRACP-5b. However, the relationships of sclerostin with bone turnover markers were substantially attenuated after adjustment for PTH. Mediation analysis suggested that the effects of PTH on bone turnover markers were mainly direct rather than mediated by sclerostin. Sclerostin levels were not associated with previous or incident fractures. Conclusions These findings suggest that in patients undergoing dialysis, sclerostin has only a limited role in bone metabolism and may not mediate the effect of PTH on bone turnover.

scholarly journals Reference values for bone metabolism in a Japanese cohort survey randomly sampled from a basic elderly resident registry

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ryosuke Tokida ◽  
Masashi Uehara ◽  
Masaki Nakano ◽  
Takako Suzuki ◽  
Noriko Sakai ◽  
...  
Keyword(s):  
Bone Turnover ◽  
Reference Values ◽  
Bone Turnover Markers ◽  
Bone Markers ◽  
Bone Turnover Marker ◽  
Characteristic Change ◽  
Tartrate Resistant Acid Phosphatase ◽  
Mineral Density ◽  
Tracp 5B ◽  
Turnover Markers

AbstractThe aim of this study was to provide definitive reference values for bone mineral density (BMD) and bone turnover markers in the general elderly population. Registered citizens of 50 to 89 years old were targeted for this survey. After random sampling from the resident registry of Obuse town, we established eight groups based on age (50 s, 60 s, 70 s, and 80 s) and gender. A total of 411 people were enrolled. We used a dual-energy x-ray absorptiometry device to measure and evaluate BMD. The bone formation marker bone alkaline phosphatase (BAP) was measured as a bone turnover marker. Bone quality marker pentosidine, and bone resorption markers including urinary total deoxypyridinoline (DPD), tartrate-resistant acid phosphatase 5b (TRACP-5b), 25-hydroxyvitamin D (25[OH]D), and whole parathyroid hormone (PTH) were also measured as bone turnover markers. Sixty-three people (15.3%) were diagnosed as osteoporosis. BMD decreased with age in the femoral neck and total hip. On the other hand, there was no characteristic change with age in the lumber spine. As for bone markers, pentosidine and DPD increased with aging, although 25(OH)D, whole PTH, and BAP showed no characteristic associations with gender and aging. In terms of the relationship between low BMD and bone markers, there was a significant independent association between low BMD and TRACP-5b in females. In conclusions, hip BMD decreased with aging in men and women. However, there was no characteristic decline with aging in the lumbar spine. All bone markers showed no significant independent characteristics associated with age or gender in a multivariate analysis model, except for a significant association between low BMD and TRACP-5b in females. TRACP-5b was a potentially useful marker for the detection of low BMD.

Bone Metabolism, Bone Mineral Content, and Density in Elite Late Teen Female Sprinters

2021 ◽  
Author(s):  
Yuka Tsukahara ◽  
Suguru Torii ◽  
Fumihiro Yamasawa ◽  
Jun Iwamoto ◽  
Takanobu Otsuka ◽  
...  
Keyword(s):  
Bone Turnover ◽  
Bone Mineral Content ◽  
Bone Metabolism ◽  
Bone Mineral ◽  
Bone Turnover Markers ◽  
Mineral Content ◽  
Whole Body ◽  
Tartrate Resistant Acid Phosphatase ◽  
Intensive Training ◽  
Turnover Markers

AbstractWith intensive training, bone injuries are a major concern for athletes. To assess bone condition, we often measure bone turnover markers, bone mineral content and density; however, in junior athletes, it is not easy to distinguish changes caused by bone injuries from those caused by growth, because the metabolism is increased in both cases. Moreover, although some studies have examined female endurance athletes, knowledge regarding changes in static and dynamic bone conditions in late teen athletes is limited. In this study, we measured the bone mineral content and density, as well as bone turnover markers, in 40 elite female sprinters in their late teens. Whole body mode dual-energy X-ray absorptiometry was performed to measure bone mineral content and density. Blood samples were collected to determine bone resorption and formation markers at the end of track season in 2016 and during the same period of the following year. Body weight and bone mineral content significantly increased, and tartrate-resistant acid phosphatase type 5b, bone-type alkaline phosphatase, and osteocalcin significantly decreased after a year. Furthermore, the rate of change in bone mineral content was higher in younger athletes, indicating that bone growth approaches completion in the late teen years and that bone metabolism accordingly decreases.

Bone Mineral Density and Biochemical Markers of Bone Metabolism in Women Engaging in Recreational Horseback Riding

2016 ◽  
Vol 13 (5) ◽  
pp. 520-524 ◽  
Author(s):  
Agnieszka Kaczmarek ◽  
Alicja Nowak ◽  
Piotr Leszczynski
Keyword(s):  
Physical Activity ◽  
Bone Mineral Density ◽  
Bone Mass ◽  
Bone Turnover ◽  
Bone Metabolism ◽  
Bone Mineral ◽  
Bone Turnover Markers ◽  
Horseback Riding ◽  
Mineral Density ◽  
Turnover Markers

Background:An increased occurrence of lifestyle-related diseases such as osteoporosis indicates the necessity for taking preventive action, including regularly engaging in physical activity. The aim of the study was to assess the areal bone mineral density (aBMD) and bone turnover markers levels in young adult women engaging in recreational horseback riding and to determine the relationship between training characteristics and bone metabolism indices.Methods:The study involved 43 women: 23 equestrians and 20 age- and body mass index–matched controls. The hip and spine aBMD and serum levels of the bone turnover markers: osteocalcin and collagen type I cross-linked C-telopeptide were measured.Results:No significant differences were found in somatic features, concentrations of bone turnover markers, or bone mass variables. Correlation analysis of the equestrian participants showed significant relationship between body mass and BMDL1–L4 (P < .05) as well as between BMI and BMDL1–L4 (P ≤ .01) and z-score L1–L4 (P < .05).Conclusions:The study showed no differences in bone mass and levels of bone metabolic indices between groups of women practicing horseback riding at the recreational level and subjects who do not participate in frequent systematic physical activity. No relationship between training characteristics and bone turnover markers were found.

Bone Turnover in Premenopausal Women with Exercise-Associated Menstrual Disorders

2007 ◽  
Vol 16 (1) ◽  
pp. 28-38
Author(s):  
Pamela S. Hinton ◽  
Laura S. Hillman ◽  
Rebecca D. Imhoff
Keyword(s):  
Bone Turnover ◽  
Premenopausal Women ◽  
Hormonal Contraceptive ◽  
Cross Sectional Study ◽  
Bone Alkaline Phosphatase ◽  
Menstrual Disorders ◽  
Mineral Density ◽  
Cross Sectional ◽  
Negative Effect ◽  
Turnover Markers

We compared bone mineral density and turnover in women with exercise-associated menstrual disorders (AMD, n=10; 0–9 cycles·y−1), hormonal contraceptive users (AHC, n=16; 12 cycles·y−1), and regularly menstruating controls (AE, n=13; 10–13 cycles·y−1). Thirty-nine active women (≥ 5 h aerobic exercise/wk) participated in this cross-sectional study. BMD was lower in AMD vs. AHC and AE . Serum hormone and bone turnover markers did not differ between AMD and AE. Cortisol was elevated (P=0.0002), progesterone suppressed (P=0.05), and bone alkaline phosphatase significantly lower (P=0.03) in AHC vs. AE. Lifetime missed menstrual cycles and body weight were significant, independent predictors of lumbar spine BMD, regardless of current menstrual status (adj R2=42.8%). Exercise-associated menstrual disorders have a negative effect on BMD.

scholarly journals Reference Values for Bone Mineral Density and Bone Turnover Markers in the General Elderly Population: A Japanese Cohort Survey Randomly Sampled From A Basic Resident Registry

2020 ◽  
Author(s):  
Ryosuke Tokida ◽  
Masashi Uehara ◽  
Yukio Nakamura ◽  
Noriko Sakai ◽  
Shota Ikegami ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Turnover ◽  
Bone Mineral ◽  
Bone Turnover Markers ◽  
Elderly Population ◽  
Bone Markers ◽  
Mineral Density ◽  
Tracp 5B ◽  
Turnover Markers ◽  
General Elderly Population

Abstract The aim of this study was to provide definitive reference values for bone mineral density (BMD) and bone turnover markers in the general elderly population. Registered citizens of 50 to 89 years old were targeted for this survey. After random sampling from the resident registry of Obuse town, we established eight groups based on age (50s, 60s, 70s, and 80s) and gender. A total of 411 people were enrolled. We used a dual-energy x-ray absorptiometry device to measure and evaluate BMD. The bone formation marker bone alkaline phosphatase (BAP) was measured as a bone turnover marker. Bone resorption markers, including pentosidine, urinary total deoxypyridinoline, urinary type I collagen N-telopeptide, tartrate-resistant acid phosphatase 5b (TRACP-5b), 25-hydroxyvitamin D, and whole PTH were also measured as bone turnover markers.Sixty-three people (15.3%) were diagnosed as OP. In women, BMD decreased with age. On the other hand, there was no characteristic change with age in men. As for bone markers, 25(OH)D, whole parathyroid hormone, and BAP showed no characteristics associated with gender and aging. In terms of the association between low BMD and bone markers, there was a significant association between low BMD and TRACP-5b in females.In conclusions, BMD decreased with age in women. However, there was no decline with age in men. All bone metabolism markers showed no significant characteristics associated with age or gender, except for a significant association between low BMD and TRACP-5b in females. TRACP-5b was a potentially useful marker for the detection of low BMD.

scholarly journals Bone status and aortic calcifications in chondrocalcinosis patients

2020 ◽  
Vol 28 (2) ◽  
pp. 195-204
Author(s):  
Paulina Vele ◽  
Ciprian Nicolae Silaghi ◽  
Laura Otilia Damian ◽  
Siao-Pin Simon ◽  
Alexandra Craciun ◽  
...  
Keyword(s):  
Bone Turnover ◽  
Bone Turnover Markers ◽  
Statistical Significance ◽  
Serum Levels ◽  
Cross Sectional Study ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Mineral Density ◽  
Cross Sectional ◽  
Turnover Markers

AbstractAim: We aimed to examine the association between several circulating bone turnover markers [ osteocalcin (OC), osteoprotegerin (OPG), beta-CrossLaps (β-CTx)], hip and spine bone mineral density (BMD) and abdominal aortic calcification (AAC) in patients with chondrocalcinosis (CC).Methods: Thirty-six patients with CC and thirty-seven controls were consecutively enrolled in this pilot case-control, cross-sectional study. The following parameters were assessed: serum levels of OC, OPG and β-CTx by enzyme-linked immunosorbent assay (ELISA); hip and spine BMD by dual-energy X-ray absorptiometry and AAC score by lateral radiography.Results: Patients with CC had higher levels of serum bone turnover markers and AAC score than the control group: OC [6.5 (3.5-9.9) vs 4.5 (2.6-7.2) ng/ml; p=0.05], OPG [(7.7 (6.2-9.4) vs 6.5 (5.5-8.12) pmol/ml; p=0.02], β-CTx [6078 (5870-6171) vs 5851 (5465-6109) pg/ml; p=0.02] and AAC score (3.6±6.2 vs 0.5±2; p=0.006). Conversely, even if statistical significance was not reached, hip and spine BMD was lower in patients with CC. Additionally, we found a positive correlation between OPG and AAC, but also between OPG and osteoporosis in patients with CC.Conclusion: Patients with CC are characterized by higher circulating OC, OPG and β-CTx. The presence of AAC was more common in patients with CC, being only associated with serum OPG.

scholarly journals Effect of hypercortisolism on bone mineral density and bone metabolism: A potential protective effect of adrenocorticotropic hormone in patients with Cushing’s disease

2017 ◽  
Vol 46 (1) ◽  
pp. 492-503 ◽  
Author(s):  
Weihong Guo ◽  
Fengao Li ◽  
Chonggui Zhu ◽  
Baoping Wang ◽  
Kunling Wang ◽  
...  
Keyword(s):  
Bone Mineral Density ◽  
Bone Turnover ◽  
Bone Metabolism ◽  
Bone Mineral ◽  
Bone Turnover Markers ◽  
Adrenocorticotropic Hormone ◽  
Cushing's Disease ◽  
Control Group ◽  
Mineral Density ◽  
Turnover Markers

Objective To investigate the effects of Cushing’s disease (CD) and adrenal-dependent Cushing’s syndrome (ACS) on bone mineral density (BMD) and bone metabolism. Methods Data were retrospectively collected for 55 patients with hypercortisolism (CD, n = 34; ACS n = 21) from January 1997 to June 2014. BMD was examined in all patients, and bone turnover markers were tested in some patients. Healthy controls (n = 18) were also recruited. Results The lumbar spine and femoral neck BMD were significantly lower in the ACS and CD groups than in the control group. Lumbar BMD was significantly lower in the ACS than CD group. The collagen breakdown product (CTX) concentrations were significantly higher while the osteocalcin and procollagen type I N-terminal propeptide (PINP) concentrations were significantly lower in the ACS and CD groups than in the control group. The PINP concentration was significantly lower while the CTX concentration was significantly higher in the ACS than CD group. In the CD group only, lumbar BMD and serum adrenocorticotropic hormone had a significant positive correlation. Conclusions Bone turnover markers indicated suppressed osteoblast and enhanced osteoclast activities. PINP and CTX changes might indicate bone mass deterioration. Adrenocorticotropic hormone might be protective for lumbar BMD in patients with CD.

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