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Bone and mineral metabolism

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https://www.readbyqxmd.com/read/29777633/hypertrophic-effect-of-inhaled-beta-2-agonist-with-and-without-concurrent-exercise-training-a-randomized-controlled-trial
#1
Søren Jessen, Johan Onslev, Anders Lemminger, Vibeke Backer, Jens Bangsbo, Morten Hostrup
INTRODUCTION: Due to a high prevalence of asthma and exercise-induced bronchoconstriction in elite athletes, there is a high use of beta2 -adrenoceptor agonists (beta2 -agonists) in the athletic population. While anabolic in rodents, no study has been able to detect hypertrophy in humans after chronic beta2 -agonist inhalation. METHODS: We investigated if inhaled beta2 -agonist, terbutaline, alters body composition and metabolic rate with and without concurrent exercise training in healthy young men...
May 19, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29776411/a-study-of-the-factors-associated-with-cervical-spinal-disc-degeneration-with-a-focus-on-bone-metabolism-and-amino-acids-in-the-japanese-population-a-cross-sectional-study
#2
Kanichiro Wada, Toshihiro Tanaka, Gentaro Kumagai, Hitoshi Kudo, Toru Asari, Daisuke Chiba, Seiya Ota, Keita Kamei, On Takeda, Shigeyuki Nakaji, Yasuyuki Ishibashi
BACKGROUND: The physical and biochemical factors responsible for cervical disc degeneration, and resulting in various spinal disorders, remain unclear. This study aimed to evaluate the correlation between cervical spinal canal stenosis and degeneration of intervertebral discs, and to analyze the factors related to disc degeneration in the Japanese population. METHODS: Three hundred and forty-four Japanese general residents underwent investigations, including magnetic resonance imaging of the cervical spine, in our health check project...
May 17, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29775762/aortic-vascular-calcification-is-inversely-associated-with-the-trabecular-bone-score-in-patients-receiving-dialysis
#3
Jasna Aleksova, Samantha Kurniawan, Mirna Vucak-Dzumhur, Peter Kerr, Peter R Ebeling, Frances Milat, Grahame J Elder
INTRODUCTION: Progressive chronic kidney disease (CKD) confers a marked increase in risk for vascular calcification, cardiovascular disease, fracture and mortality, with likely contributing factors including dysregulated bone metabolism and mineral homeostasis. In general population studies, increased vascular calcification is directly related to mortality and inversely related to bone mineral density (BMD) measured by dual-energy X-ray absorptiometry (DXA). In patients with CKD, abnormalities in turnover, mineralization and bone volume, reduce the ability of DXA to predict fracture...
May 15, 2018: Bone
https://www.readbyqxmd.com/read/29774402/subtrochanteric-and-diaphyseal-femoral-fractures-in-hypophosphatasia-not-atypical-at-all
#4
F Genest, L Seefried
Risk for subtrochanteric and diaphyseal femoral fractures is considered increased in patients with hypophosphatasia (HPP). Evaluating a large cohort of HPP patients, we could for the first time quantify the prevalcence and identify both morphometric features as well as predisposing factors for this complication of severe HPP. INTRODUCTION: Subtrochanteric and diaphyseal femoral fractures have been associated with both, long-term antiresorptive treatment and metabolic bone disorders, specifically Hypophosphatasia (HPP)...
May 17, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29765223/efficacy-of-denosumab-in-two-cases-with-multiple-system-atrophy-and-osteoporosis
#5
Masashi Uehara, Yukio Nakamura, Jun Takahashi, Takako Suzuki, Hiroyuki Kato
Background: Multiple-system atrophy (MSA) is an α-synucleinopathy with a very aggressive course and poor prognosis, which lacks efficient treatment. Thus, MSA represents a serious health and social problem. Progressive stridor and acute laryngeal obstruction likely occur in MSA; however, little is known about the bone metabolism or efficacy of bone absorption drugs, such as denosumab, in osteoporosis with MSA. Case presentation and methods: Two male patients with osteoporosis in MSA presented to our institution (at 54 and 68 years of age)...
2018: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29764395/longitudinal-changes-in-bone-and-mineral-metabolism-after-cessation-of-cinacalcet-in-dialysis-patients-with-secondary-hyperparathyroidism
#6
Irene Ruderman, Edward R Smith, Nigel D Toussaint, Tim D Hewitson, Stephen G Holt
BACKGROUND: The calcimimetic agent cinacalcet is effective for the management of secondary hyperparathyroidism (SHPT) in dialysis patients. Changes to reimbursement of cinacalcet in Australia provided an opportunity to assess effects of medication cessation on biochemical and clinical outcomes in dialysis patients, including changes to novel biomarkers such as calciprotein particles (CPP). CPP are nanoparticles of mineral and protein in the circulation associated with increased vascular calcification in patients with chronic kidney disease...
May 15, 2018: BMC Nephrology
https://www.readbyqxmd.com/read/29760322/effect-of-dietary-difructose-anhydride-iii-supplementation-on-bone-mineral-density-and-calcium-metabolism-in-late-lactation-dairy-cows
#7
Ayami Maetani, Masayuki Ohtani, Kaoru Hatate, Kotaro Matsumoto, Norio Yamagishi
The aim of the present study was to examine the effect of 28 days of dietary difructose anhydride (DFA) III supplementation on calcium (Ca) metabolism in late-lactation dairy cows. Twenty-four multiparous pregnant Holstein cows were divided into two groups. The DFA group was fed total mixed ration (TMR) supplemented with 40 g of DFA III, and the control group was fed TMR only. The replenishment of bone Ca reserves was evaluated by measuring bone mineral density (BMD) and blood biochemical bone markers. Serum Ca concentrations, urinary Ca-to-creatinine (Cre) (Ca/Cre) ratios, and milk Ca concentrations were also analyzed...
May 14, 2018: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/29759558/the-influence-of-genetic-variation-on-late-toxicities-in-childhood-cancer-survivors-a-review
#8
REVIEW
E Clemens, A L F van der Kooi, L Broer, E van Dulmen-den Broeder, H Visscher, L Kremer, W Tissing, J Loonen, C M Ronckers, S M F Pluijm, S J C M M Neggers, O Zolk, T Langer, A Am Zehnhoff-Dinnesen, C L Wilson, M M Hudson, B Carleton, J S E Laven, A G Uitterlinden, M M van den Heuvel-Eibrink
INTRODUCTION: The variability in late toxicities among childhood cancer survivors (CCS) is only partially explained by treatment and baseline patient characteristics. Inter-individual variability in the association between treatment exposure and risk of late toxicity suggests that genetic variation possibly modifies this association. We reviewed the available literature on genetic susceptibility of late toxicity after childhood cancer treatment related to components of metabolic syndrome, bone mineral density, gonadal impairment and hearing impairment...
June 2018: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/29754633/morbidity-of-cushing-s-syndrome-and-impact-of-treatment
#9
REVIEW
Susan M Webb, Elena Valassi
Cortisol excess in Cushing's syndrome is associated with metabolic, cardiovascular, and cognitive alterations, only partially reversible after resolution of hypercortisolism. Elevated cardiovascular risk may persist after eucortisolism has been achieved. Fractures and low bone mineral density are also described in Cushing's syndrome in remission. Hypercortisolism may induce irreversible structural and functional changes in the brain, leading to neuropsychiatric disorders in the active phase of the disease, which persist...
June 2018: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/29754383/alteration-of-bone-mineral-density-differs-between-genders-in-obese-subjects-after-laparoscopic-sleeve-gastrectomy-bone-morphogenetic-protein-4-may-count
#10
Xingchun Wang, Liang Li, Cuiling Zhu, Jingyang Gao, Shen Qu
OBJECTIVE: Laparoscopic sleeve gastrectomy (LSG) has proven to be successful in weight reduction but with potential loss of bone mass. Previous studies indicated that bone morphogenetic protein 4 (BMP4) plays an important role in both bone formation and glucose-lipid metabolism. This study aimed to investigate the changes in bone mineral density (BMD), bone metabolic parameters, and serum BMP4 levels in obese Chinese subjects after LSG. METHODS: Seventy-one obese patients (34 males, age 31...
May 12, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29753403/clinical-studies-of-interventions-to-mitigate-cardiovascular-risk-in-peritoneal-dialysis-patients
#11
REVIEW
Dev Jegatheesan, Yeoungjee Cho, David W Johnson
Cardiovascular disease (CVD) is highly prevalent in the peritoneal dialysis (PD) population, affecting up to 60% of cohorts. CVD is the primary cause of death in up to 40% of PD patients in Australia, New Zealand, and the United States. Cardiovascular mortality rates are reported to be approximately 14 per 100 patient-years, which are 10- to 20-fold greater than those of age- and sex-matched controls. The excess risk of CVD is related to a combination of traditional risk factors (such as hypertension, dyslipidemia, obesity, smoking, sedentary lifestyle, and insulin resistance), nontraditional (kidney disease-related) risk factors (such as anemia, chronic volume overload, inflammation, malnutrition, hyperuricemia, and mineral and bone disorder), and PD-specific risk factors (such as dialysis solutions, glycation end products, hypokalemia, residual kidney function, and ultrafiltration failure)...
May 2018: Seminars in Nephrology
https://www.readbyqxmd.com/read/29753400/updates-on-the-mechanisms-and-the-care-of-cardiovascular-calcification-in-chronic-kidney-disease
#12
REVIEW
Lucie Hénaut, Jean-Marc Chillon, Saïd Kamel, Ziad A Massy
In chronic kidney disease (CKD), the progressive decrease in renal function leads to disturbances of mineral metabolism that generally cause secondary hyperparathyroidism. The increase in serum parathyroid hormone is associated with reduced serum calcium and calcitriol levels and/or increased serum fibroblast growth factor-23 and phosphate levels. The resulting CKD-associated disorder of mineral and bone metabolism is associated with various other metabolic dysregulations such as acidosis, malnutrition, inflammation, and accumulation of uremic toxins...
May 2018: Seminars in Nephrology
https://www.readbyqxmd.com/read/29753150/identification-of-asymptomatic-frailty-vertebral-fractures-in-post-menopausal-women
#13
S Pizzato, C Trevisan, P Lucato, G Girotti, M Mazzochin, B M Zanforlini, G Bano, F Piovesan, A Bertocco, F Zoccarato, M Dianin, E Manzato, G Sergi
PURPOSE: Vertebral fractures are associated with persistent pain, disability and mortality. However, around two thirds of women with vertebral fractures are unaware of them. We aimed to analyze which factors could mostly be associated to the presence of vertebral fractures in post-menopausal women, and evaluate the effectiveness of current screening criteria for the detection of vertebral fractures in an outpatient setting. METHODS: We evaluated 1132 post-menopausal women referred to the osteoporosis outpatient clinic of the Geriatrics Department of Padova...
May 9, 2018: Bone
https://www.readbyqxmd.com/read/29748875/changes-in-bone-metabolism-after-gastric-cancer-surgery-in-male-patients-a-prospective-observational-study
#14
Yosuke Atsumi, Yasushi Rino, Hiroo Wada, Yuichi Kitani, Yukihiro Ozawa, Toru Aoyama, Takashi Oshima, Norio Yukawa, Takaki Yoshikawa, Munetaka Masuda
BACKGROUND: Several retrospective studies have shown that bone disorders occur after gastric cancer surgery. This study was designed to prospectively evaluate the changes in bone metabolism after gastrectomy for gastric cancer. METHODS: We prospectively enrolled 39 men with early gastric cancer who underwent gastrectomy. We excluded women to avoid the effects of menopause. We employed dual energy X-ray absorptiometry (DEXA) to measure bone mineral density (BMD) of the lumbar spine...
May 10, 2018: Gastric Cancer
https://www.readbyqxmd.com/read/29747269/-effect-of-low-dose-or-standard-dose-conjugated-equine-estrogen-combined-with-different-progesterone-on-bone-density-in-menopause-syndrome-women
#15
H L Zuo, Y Deng, Y F Wang, L L Gao, W Xue, S Y Zhu, X Ma, A J Sun
Objective: To explore the effect of low-dose or standard-dose conjugated equine estrogen (CEE) combined with natural progesterone or dydrogesterone on bone density in menopause syndrome women. Methods: Totally 123 patients with menopause syndrome were recruited and randomly assigned to 3 treatment groups: group A (low-dose CEE+progesterone) , group B (standard-dose CEE+progesterone) , group C (standard-dose CEE+dydrogesterone) . Using continuous sequential regimen, the duration of intervention was 12 cycles...
April 25, 2018: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/29746570/opportunistic-osteoporosis-screening-via-the-measurement-of-frontal-skull-hounsfield-units-derived-from-brain-computed-tomography-images
#16
Min Kyun Na, Yu Deok Won, Choong Hyun Kim, Jae Min Kim, Jin Hwan Cheong, Je Il Ryu, Myung-Hoon Han
BACKGROUND AND PURPOSE: Osteoporosis is one of the most common chronic metabolic diseases, but detection and treatment rates are low. The aim of the current study was to evaluate the correlation between frontal skull Hounsfield unit (HU) values from brain computed tomography (CT) scans and T-scores of the lumbar spine and femoral neck from dual-energy X-ray absorptiometry (DXA) scans. METHODS: Patients with < 1 year between brain CT and DXA scans were included in the study...
2018: PloS One
https://www.readbyqxmd.com/read/29745819/crosstalk-between-neuropeptides-sp-and-cgrp-in-regulation-of-bmp2-induced-bone-differentiation
#17
Ceren Tuzmen, Phil G Campbell
AIM OF THE STUDY: The peripheral nervous system is involved in regulation of bone metabolism via sensory and sympathetic innervation. Substance P (SP) and calcitonin gene-related peptide (CGRP) are two sensory neuropeptides that have been associated with regulation of osteogenic differentiation. However, the interaction between SP and CGRP both with each other and the bone morphogenetic protein 2 (BMP2) in regulation of osteogenic differentiation has not been studied. Therefore, the aim of this study was to investigate the interaction between SP and CGRP on BMP2-induced bone differentiation using model progenitor cells...
December 2018: Connective Tissue Research
https://www.readbyqxmd.com/read/29743888/correlation-between-helicobacter-pylori-infection-and-metabolic-abnormality-in-general-population-a-cross-sectional-study
#18
Li-Juan Lu, Ning-Bo Hao, Jian-Jun Liu, Xue Li, Rui-Ling Wang
Background: Previous studies have suggested a link between Helicobacter pylori ( H. pylori ) and metabolic abnormality. This study aimed at investigating the correlation between H. pylori infection and metabolic abnormality in a general population. Methods: All enrolled participants underwent a carbon-13 urea breath test (13 C-UBT). For each individual, the following data were collected: age, gender, alanine transaminase (ALT), total protein, albumin, cholesterol, triglyceride (TG), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), urea nitrogen, creatinine, uric acid, fasting plasma glucose, postprandial blood sugar, nonalcoholic fatty liver disease (NAFLD), and bone mineral density (BMD)...
2018: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/29733407/bone-inflammation-and-the-bone-marrow-niche-in-chronic-kidney-disease-what-do-we-know
#19
Sandro Mazzaferro, Giuseppe Cianciolo, Antonio De Pascalis, Chiara Guglielmo, Pablo A Urena Torres, Jordi Bover, Lida Tartaglione, Marzia Pasquali, Gaetano La Manna
Recent improvements in our understanding of physiology have altered the way in which bone is perceived: no longer is it considered as simply the repository of divalent ions, but rather as a sophisticated endocrine organ with potential extraskeletal effects. Indeed, a number of pathologic conditions involving bone in different ways can now be reconsidered from a bone-centred perspective. For example, in metabolic bone diseases like osteoporosis (OP) and renal osteodystrophy (ROD), the association with a worse cardiovascular outcome can be tentatively explained by the possible derangements of three recently discovered bone hormones (osteocalcin, fibroblast growth factor 23 and sclerostin) and a bone-specific enzyme (alkaline phosphatase)...
May 4, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29731011/bone-and-mineral-metabolism-at-55-haemodialysis-centres-in-lima
#20
Pedro Méndez-Chacón, Nicolás Riccobelli, María P Dionisi, Emilio Sánchez-Álvarez, Fernando Bardales-Viguria, Carla Méndez-Chacón Rodríguez, Jorge B Cannata-Andía, José L Fernández-Martín
BACKGROUND: Mineral and bone metabolism disorders are common complications in haemodialysis patients that present significant geographical variability. OBJECTIVES: The objective of this study was to assess these disorders for the first time in haemodialysis patients from Peru. METHODS: The study included 1551 haemodialysis patients from 55 centres affiliated with the Social Health System of Peru in the city of Lima. Demographic data, comorbidities, treatments and biochemical parameters were collected from each patient...
May 2018: Nefrología: Publicación Oficial de la Sociedad Española Nefrologia
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