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Bone turnover markers

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https://www.readbyqxmd.com/read/28918310/effect-of-eplerenone-on-markers-of-bone-turnover-in-patients-with-primary-hyperparathyroidism-the-randomized-placebo-controlled-epath-trial
#1
Nicolas Verheyen, Martin R Grübler, Andreas Meinitzer, Christian Trummer, Verena Schwetz, Karin Amrein, Hans P Dimai, Winfried März, Cristiana Catena, Dirk von Lewinski, Jakob Voelkl, Ioana Alesutan, Astrid Fahrleitner-Pammer, Helmut Brussee, Stefan Pilz, Andreas Tomaschitz
Mineralocorticoid receptor (MR) antagonism may affect bone turnover via direct and indirect pathways involving parathyroid hormone, but randomized controlled trials are lacking. In a pre-specified analysis of the "Eplerenone in primary hyperparathyroidism" placebo-controlled, randomized trial (ISRCTN 33941607), effects of eight weeks MR-blockade with eplerenone on bone turnover markers in 97 patients with primary hyperparathyroidism were tested. Mean age was 67.5±9.5years, and 76 (78.4%) were females. In analysis of covariance with adjustment for baseline values, eplerenone had no significant effect on isoform 5b of the tartrate-resistant acid phosphatase (TRAP), beta-crosslaps, N-terminal propeptide of procollagen type 1 (P1NP), osteocalcin and bone-specific alkaline phosphatase...
September 14, 2017: Bone
https://www.readbyqxmd.com/read/28911163/response-to-letter-calcium-and-bone-turnover-markers-in-acromegaly-a-prospective-controlled-study
#2
Tina Constantin, Vin Tangpricha, Reshma Shah, Nelson M Oyesiku, Octavian Ioachimescu, James Ritchie, Adriana G Ioachimescu
No abstract text is available yet for this article.
September 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28911159/letter-to-the-editor-calcium-and-bone-turnover-markers-in-acromegaly-a-prospective-controlled-study
#3
Shu-Ying Liu, Zhi-Feng Sheng
No abstract text is available yet for this article.
September 1, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28902705/effects-of-vitamin-d-supplementation-on-bone-mineral-density-and-bone-markers-in-hiv-infected-youth
#4
Allison Ross Eckard, Mary Ann O'Riordan, Julia C Rosebush, Joshua H Ruff, Ann Chahroudi, Danielle Labbato, Julie E Daniels, Monika Uribe-Leitz, Vin Tangpricha, Grace A McComsey
BACKGROUND: Low bone mineral density (BMD) is a significant co-morbidity in HIV. However, studies evaluating vitamin D supplementation on bone health in this population are limited. This study investigates changes in bone health parameters after 12 months of supplementation in HIV-infected youth with vitamin D insufficiency. METHODS: This is a randomized, active-control, double-blind trial investigating changes in bone parameters with 3 different vitamin D3 doses [18,000 (standard/control dose), 60,000 (moderate dose) and 120,000 IU/monthly (high dose)] in HIV-infected youth 8-25 years old with baseline serum 25-hydroxyvitamin D (25(OH)D) concentrations <30 ng/mL...
September 11, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28893875/duration-of-antiresorptive-activity-of-zoledronate-in-postmenopausal-women-with-osteopenia-a-randomized-controlled-multidose-trial
#5
RANDOMIZED CONTROLLED TRIAL
Andrew Grey, Mark J Bolland, Anne Horne, Borislav Mihov, Greg Gamble, Ian R Reid
BACKGROUND: Intravenous zoledronate 5 mg annually reduces fracture risk, and 5 mg every 2 years prevents bone loss, but the optimal dosing regimens for these indications are uncertain. METHODS: We conducted a 3-year open-label extension of a 2-year randomized, placebo-controlled, double-blind study. Late postmenopausal women with osteopenia were assigned to receive a single baseline dose of 1 mg, 2.5 mg or 5 mg of zoledronate or placebo. The primary outcome was change in spine bone mineral density (BMD)...
September 11, 2017: CMAJ: Canadian Medical Association Journal, Journal de L'Association Medicale Canadienne
https://www.readbyqxmd.com/read/28893629/obesity-and-type-2-diabetes-not-a-diet-high-in-fat-sucrose-and-cholesterol-negatively-impacts-bone-outcomes-in-the-hyperphagic-otsuka-long-evans-tokushima-fatty-rat
#6
Laura C Ortinau, Melissa A Linden, Rebecca Dirkes, R Scott Rector, Pamela S Hinton
BACKGROUND: Obesity and type 2 diabetes (T2D) increase fracture risk; however, the association between obesity/T2D may be confounded by consumption of a diet high in fat, sucrose, and cholesterol (HFSC). OBJECTIVE: The study objective was to determine the main and interactive effects of obesity/T2D and a HFSC diet on bone outcomes using hyperphagic Otuska Long Evans Tokushima Fatty (OLETF) rats and normophagic Long Evans Tokushima Otsuka (LETO) controls. METHODS: At 8weeks of age, male OLETF and LETO rats were randomized to either a control (CON, 10 en% from fat as soybean oil) or HFSC (45 en% from fat as soybean oil/lard, 17 en% sucrose, and 1wt%) diet, resulting in four treatment groups...
September 9, 2017: Bone
https://www.readbyqxmd.com/read/28880886/the-osteogenic-cell-surface-marker-bril-ifitm5-is-dispensable-for-bone-development-and-homeostasis-in-mice
#7
Alexa Patoine, Abdallah Husseini, Bahar Kasaai, Marie-Hélène Gaumond, Pierre Moffatt
BRIL (bone-restricted IFITM-like), is a short transmembrane protein expressed almost exclusively in osteoblasts. Although much is known about its bone-restricted gene expression pattern and protein biochemical and topological features, little information is available for BRIL physiological function. Two autosomal dominant forms of osteogenesis imperfecta (OI) are caused by distinct, but recurrent mutations in the BRIL gene. Yet, the underlying mechanisms by which those mutations lead to OI are still poorly understood...
2017: PloS One
https://www.readbyqxmd.com/read/28878388/promotion-effect-of-extracts-from-plastrum-testudinis-on-alendronate-against-glucocorticoid-induced-osteoporosis-in-rat-spine
#8
Hui Ren, Gengyang Shen, Jingjing Tang, Ting Qiu, Zhida Zhang, Wenhua Zhao, Xiang Yu, Jinjing Huang, De Liang, Zhensong Yao, Zhidong Yang, Xiaobing Jiang
Alendronate (ALN) is a key therapeutic used to treat glucocorticoid-induced osteoporosis (GIOP), but may induce severe side effects. We showed earlier that plastrum testudinis extracts (PTE) prevented and treated GIOP in vivo. However, clinically, PTE is seldom used alone. Herein, we reveal the synergistic effect of ALN and PTE can treat GIOP of the rat spine and define the mechanism. Sprague-Dawley rats were randomly assigned to four groups: a vehicle group, a GIOP group, an ALN group, and an ALN+PTE group...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28874132/bone-turnover-markers-are-associated-with-bone-density-but-not-with-fracture-in-end-stage-kidney-disease-a-cross-sectional-study
#9
Hanne Skou Jørgensen, Simon Winther, Morten Bøttcher, Ellen-Margrethe Hauge, Lars Rejnmark, My Svensson, Per Ivarsen
BACKGROUND: Fracture risk is increased in chronic kidney disease (CKD), but assessment of bone fragility remains controversial in these patients. This study investigated the associations between bone turnover markers, bone mineral density (BMD), and prevalent fragility fracture in a cohort of kidney transplantation candidates. METHODS: Volumetric BMD of spine and hip was measured by quantitative computed tomography. Parathyroid hormone (PTH), bone-specific alkaline phosphatase, procollagen type-1 N-terminal propeptide, tartrate resistant alkaline phosphatase, and C- and N-terminal telopeptides of type 1 collagen were analyzed from fasting morning blood samples...
September 6, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28872422/bone-turnover-markers-and-lean-mass-in-pubescent-boys-comparison-between-elite-soccer-players-and-controls
#10
Ammar Nebigh, Mohamed Elfethi Abed, Rihab Borji, Sonia Sahli, Slaheddine Sellami, Zouhair Tabka, Haithem Rebai
The aim of this study was to examine the relationship between bone mass and bone turnover markers with lean mass in pubescent soccer players. Two groups participated in this study 65 elite young soccer players that trained from 6 to 8 hours per week and 60 controls. Bone mineral density (BMD), bone mineral content (BMC) in the whole body, lower limbs, lumbar spine, and femoral neck, biochemical markers of osteocalcin (OC), bone-specific alkaline phosphatase (BAP), C-telopeptide type I collagen (CTX) and total lean mass were assessed...
September 5, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28853593/changes-in-bone-turnover-markers-in-primary-hyperparathyroidism-and-response-to-surgery
#11
P Rajeev, A Movseysan, A Baharani
Introduction Involvement of the bone is common in primary hyperparathyroidism. The aim of the study was to assess bone turnover markers in response to surgery for primary hyperparathyroidism. Methods This was a retrospective study of patients diagnosed and treated for parathyroid disease between 2005 and 2012. Interventions studied were surgery and medical treatment. The main outcome measures studied were serum levels of calcium, intact parathyroid hormone (iPTH), bone-specific alkaline phosphatase, N-terminal cross-linking propeptide of type 1 procollagen (P1NP) and C-terminal cross-linking telopeptides of type I collagen (CTX), both pre- and postoperatively at 6 months and 1 year; bone mineral density (at the spine and hip assessed by dual-energy x-ray absorptiometry after 1 year of treatment...
September 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/28851260/effect-of-hypercortisolism-on-bone-mineral-density-and-bone-metabolism-a-potential-protective-effect-of-adrenocorticotropic-hormone-in-patients-with-cushing-s-disease
#12
Weihong Guo, Fengao Li, Chonggui Zhu, Baoping Wang, Kunling Wang, Chenlin Dai, Hongwei Jia, Hongyan Wei, Qing He, Jin Cui, Menghua Yuan, Shaofang Tang, Wei Liu, Tiehong Zhu, Zhihong Gao, Fangqiu Zheng, Zhongshu Ma, Huiqi Qu, Mei Zhu
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...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28845895/bone-markers-in-polycystic-ovary-syndrome-a-multi-centre-study
#13
Shilpa Lingaiah, Laure Morin-Papunen, Terhi Piltonen, Johanna Puurunen, Inger Sundström-Poromaa, Elisabet Stener-Victorin, Risto Bloigu, Juha Risteli, Juha S Tapanainen
OBJECTIVE: Hyperandrogenism, hyperinsulinemia and obesity, known characteristics of polycystic ovary syndrome (PCOS), may influence bone mineral density and biochemical markers of bone turnover (BTMs) can provide a non-invasive assessment of bone turnover. To this end, the serum concentrations of BTMs and 25-hydroxyvitamin D (25OHD) were analysed in women with PCOS and their possible associations with metabolic parameters of PCOS were determined. SUBJECTS AND METHODS: Bone formation markers procollagen type I amino-terminal propeptide (PINP) and osteocalcin (OC), and bone resorption marker carboxy-terminal cross-linking telopeptide of type I collagen (CTX), along with 25OHD, were measured in 298 women with PCOS and 194 healthy controls...
August 28, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28842727/effect-of-vitamin-d3-on-bone-turnover-markers-in-critical-illness-post-hoc-analysis-from-the-vitdal-icu-study
#14
V Schwetz, C Schnedl, T Urbanic-Purkart, C Trummer, H P Dimai, A Fahrleitner-Pammer, C Putz-Bankuti, K B Christopher, B Obermayer-Pietsch, T R Pieber, H Dobnig, K Amrein
In this post hoc analysis of the VITdAL-ICU study, an RCT in critically ill adults with 25-hydroxyvitamin D levels ≤20 ng/ml, vitamin D3 did not have a significant effect on β-Crosslaps and osteocalcin. INTRODUCTION: Observational studies have shown accelerated bone loss in ICU survivors. A reversible contributor is vitamin D deficiency. In a post hoc analysis of the VITdAL-ICU study, we evaluated the effect of high-dose vitamin D3 on the bone turnover markers (BTM) β-Crosslaps (CTX) and osteocalcin (OC)...
August 25, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28837504/efficacy-and-safety-of-bazedoxifene-in-postmenopausal-latino-women-with-osteoporosis
#15
Jose A Hernández Bueno, Lizbeth Arias, Ching-Ray Yu, Robert Williams, Barry S Komm
OBJECTIVE: Bazedoxifene (BZA) reduces fractures and bone turnover in postmenopausal women with osteoporosis. This report evaluates safety and efficacy of BZA in Latin American women in the global trial. METHODS: In the 3-year, phase 3, randomized, double-blind trial, postmenopausal women with osteoporosis (N = 7,492) received BZA 20 or 40 mg/d, raloxifene 60 mg/d, or placebo. Outcomes included vertebral fractures, bone mineral density, bone turnover markers, and safety...
September 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28835390/excessive-vitamin-e-intake-does-not-cause-bone-loss-in-male-or-ovariectomized-female-mice-fed-normal-or-high-fat-diets
#16
Hiroko Ikegami, Rie Kawawa, Ikuyo Ichi, Tomoko Ishikawa, Taisuke Koike, Yoshinori Aoki, Yoko Fujiwara
Background: Animal studies on the effects of vitamin E on bone health have yielded conflicting and inconclusive results, and to our knowledge, no studies have addressed the effect of vitamin E on bone in animals consuming a high-fat diet (HFD).Objective: This study aimed to evaluate the effect of excessive vitamin E on bone metabolism in normal male mice and ovariectomized female mice fed a normal diet (ND) or HFD.Methods: In the first 2 experiments, 7-wk-old male mice were fed an ND (16% energy from fat) containing 75 (control), 0 (vitamin E-free), or 1000 (high vitamin E) mg vitamin E/kg (experiment 1) or an HFD (46% energy from fat) containing 0, 200, 500, or 1000 mg vitamin E/kg (experiment 2) for 18 wk...
August 23, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28832406/racial-differences-in-calculated-bioavailable-vitamin-d-with-vitamin-d-calcium-supplementation-actg-a5280
#17
Michael T Yin, Ellen S Chan, Todd T Brown, P Tebas, Grace A McComsey, K Melbourne, A Napoli, R Hardin, H J Ribaudo, Edgar T Overton
OBJECTIVES: Some studies suggest that bioavailable 25-(OH)D is more accurate than total 25-(OH)D as an assessment of vitamin D status in black individuals, We hypothesized that increases in bioavailable 25-(OH)D would correlate better with improvement in bone outcomes among black HIV-infected adults. DESIGN: This is a secondary analysis of ACTG A5280, a randomized, double-blind study of Vitamin D3 and calcium (VitD/Ca) supplementation in HIV-infected participants initiating antiretroviral therapy (ART)...
August 21, 2017: AIDS
https://www.readbyqxmd.com/read/28821456/hyperglycemia-is-associated-with-increased-bone-mineral-density-and-decreased-trabecular-bone-score-in-elderly-japanese-men-the-fujiwara-kyo-osteoporosis-risk-in-men-formen-study
#18
Masayuki Iki, Yuki Fujita, Katsuyasu Kouda, Akiko Yura, Takahiro Tachiki, Junko Tamaki, Renaud Winzenrieth, Yuho Sato, Jong-Seong Moon, Nozomi Okamoto, Norio Kurumatani
PURPOSE: Patients with type 2 diabetes mellitus (T2DM) have an increased fracture risk despite having higher areal bone mineral density (aBMD). This study aimed to clarify the association between glycemic and insulin resistance status and bone microarchitecture, and whether pentosidine and bone turnover markers play any roles in the association. METHODS: A total of 2012 community-dwelling men aged ≥65years completed baseline measurements of spine aBMD, fasting plasma glucose (FPG) and serum insulin, hemoglobin A1c (HbA1c), osteocalcin, type I procollagen N-terminal propeptide, type I collagen C-terminal crosslinking telopeptide, tartrate-resistant acid phosphatase isoenzyme 5b, pentosidine, height and weight and an interview regarding past disease history...
August 15, 2017: Bone
https://www.readbyqxmd.com/read/28816234/novel-mutations-of-tcirg1-cause-a-malignant-and-mild-phenotype-of-autosomal-recessive-osteopetrosis-aro-in-four-chinese-families
#19
Xiao-Ya Zhang, Jin-Wei He, Wen-Zhen Fu, Chun Wang, Zhen-Lin Zhang
Human autosomal recessive osteopetrosis (ARO), also known as infantile malignant osteopetrosis, is a rare genetic bone disorder that often causes death. Mutations in T-cell immune regulator 1 (TCIRG1) are a frequent cause of human ARO. Six additional genes (TNFSF11, TNFRSF11A, CLCN7, OSTM1, SNX10, PLEKHM1) were also found to be associated with human ARO. In order to expand the mutation spectrum and clinical diversity for a better understanding of the ARO phenotype and to further investigate the clinical characteristics of benign subjects with ARO, we here report five individuals with ARO from four unrelated Chinese families...
August 17, 2017: Acta Pharmacologica Sinica
https://www.readbyqxmd.com/read/28815282/correction-of-vitamin-d-status-by-calcidiol-pharmacokinetic-profile-safety-and-biochemical-effects-on-bone-and-mineral-metabolism-of-daily-and-weekly-dosage-regimens
#20
S Minisola, L Cianferotti, P Biondi, C Cipriani, C Fossi, F Franceschelli, F Giusti, G Leoncini, J Pepe, H A Bischoff-Ferrari, M L Brandi
RATIONALE: Calcidiol can be employed to correct vitamin D deficiency. MAIN RESULTS: Calcidiol administered at daily and weekly regimens over a period of 3 months was able to successfully raise 25-hydroxyvitamin D levels without altering other markers related to bone and mineral metabolism. SIGNIFICANCE: Calcidiol supplementation is effective and safe. INTRODUCTION: The correction of vitamin D status is necessary to maintain an optimal mineral and skeletal homeostasis...
August 16, 2017: Osteoporosis International
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