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https://www.readbyqxmd.com/read/29775762/aortic-vascular-calcification-is-inversely-associated-with-the-trabecular-bone-score-in-patients-receiving-dialysis
#1
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/29775087/does-armodafinil-improve-driving-task-performance-and-weight-loss-in-sleep-apnea-a-randomized-trial
#2
Julia Louise Chapman, Elizabeth Anne Cayanan, Camilla Miranda Hoyos, Yasmina Serinel, Maria Comas, Brendon John Yee, Keith Keat Huat Wong, Ronald Robert Grunstein, Nathaniel Stuart Marshall
RATIONALE Obstructive sleep apnea (OSA) patients unable to tolerate standard treatments have few alternatives. They may benefit from weight loss, but the major symptom of daytime performance impairment may remain during weight loss programs. OBJECTIVES We hypothesized that wakefulness-promoter armodafinil would improve driving task performance over placebo in patients undergoing weight loss. METHODS Placebo-controlled, double-blind, randomized trial of Armodafinil vs Placebo daily for 6 months in patients who were also randomized to one of two diets for six months with follow-up at one year in overweight, adult, OSA patients who had rejected standard treatment and suffered daytime sleepiness...
May 18, 2018: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29774402/subtrochanteric-and-diaphyseal-femoral-fractures-in-hypophosphatasia-not-atypical-at-all
#3
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/29774401/high-levels-of-serum-sclerostin-and-dkk1-in-a-case-of-klippel-tr%C3%A3-naunay-syndrome
#4
P Muto, A Lo Gullo, G Mandraffino, S Loddo, M Atteritano
Klippel-Trénaunay syndrome (KTS) is described as a complex syndrome characterized by various combinations of capillary, venous, and lymphatic malformations associated with bone and soft tissue hypertrophy. We report a case of a 67-year-old postmenopausal Caucasian women with KTS that shows elevated levels of sclerostin and Dickkopf-related protein 1 (DKK1). Dual-energy X-ray absorptiometry (DXA) BMD T-scores at lumbar spine and femur were normal. Serum calcium and phosphorus levels were consistently normal, 25-hydroxyvitamin D (25OHD) < 30 ng/mL, and normal parathyroid hormone (PTH)...
May 17, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29774400/cost-effectiveness-of-osteoporosis-screening-strategies-for-hip-fracture-prevention-in-older-chinese-people-a-decision-tree-modeling-study-in-the-mr-os-and-ms-os-cohort-in-hong-kong
#5
Y Su, F T T Lai, B H K Yip, J C S Leung, T C Y Kwok
Despite the high costs of hip fracture, many governments provide limited support for osteoporosis screening. We demonstrated that osteoporosis screening by dual-energy X-ray absorptiometry (DXA) with or without pre-screening by Fracture Risk Assessment Tool (FRAX) or calcaneal ultrasound are more cost-effective than no screening in Chinese people aged 65 or over in Hong Kong. INTRODUCTION: To examine the cost-effective potential osteoporosis screening strategies for hip fracture prevention in Hong Kong...
May 17, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29774385/effects-of-dietary-intake-patterns-from-1-to-4-years-on-bmi-z-score-and-body-shape-at-age-of-6-years-a-prospective-birth-cohort-study-from-brazil
#6
Leonardo Pozza Santos, Ken K Ong, Ina S Santos, Alicia Matijasevich, Aluísio J D Barros
PURPOSE: To assess the association between dietary intake patterns from 1 to 4 years and BMI and body shape at age of 6 years. METHODS: This longitudinal study was based on 3374 Brazilian children from the 2004 Pelotas Birth Cohort Study. We used previously described dietary patterns from 1 to 4 years as the main exposure. We defined body shape using scores for corpulence (a recently described body shape component measured by Photonic Scanner), and trunk and gynoid fat mass percentage from DXA...
May 17, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29770222/recurrent-vertebral-fractures-in-a-young-adult-a-closer-look-at-bone-health-in-type-1-diabetes-mellitus
#7
Eleanor P Thong, Sarah Catford, Julie Fletcher, Phillip Wong, Peter J Fuller, Helena Teede, Frances Milat
The association between type 1 diabetes mellitus (T1DM) and bone health has garnered interest over the years. Fracture risk is known to be increased in individuals with T1DM, although bone health assessment is not often performed in the clinical setting. We describe the case of a 21-year-old male with longstanding T1DM with multilevel vertebral fractures on imaging, after presenting with acute back pain without apparent trauma. Dual-energy X-ray absorptiometry (DXA) revealed significantly reduced bone mineral density at the lumbar spine and femoral neck...
2018: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29768330/risk-factors-for-osteoporosis-in-liver-cirrhosis-patients-measured-by-transient-elastography
#8
Jian-Ping Zheng, Hai-Xiong Miao, Shao-Wei Zheng, Wei-le Liu, Chu-Qun Chen, Hao-Bo Zhong, Sheng-Fa Li, Yong-Ping Fang, Chun-Han Sun
Osteoporosis or osteopenia is a common complication in patients with cirrhosis, but little is known about the risk factors for the occurrence of osteoporosis.Patients with liver cirrhosis due to chronic virus infection and alcoholic abuse were enrolled. Bone mineral density (BMD) was determined using dual-energy x-ray absorptiometry (DXA). Osteoporosis was diagnosed according to WHO criteria. The severity of liver stiffness was measured by Fibroscan. Demographic data, such as age, gender, weight, height, and body mass index (BMI), were collected...
May 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29762165/improved-fracture-prediction-using-different-frax-adjustments-in-hiv-infected-women
#9
Jingyan Yang, Anjali Sharma, Qiuhu Shi, Kathryn Anastos, Mardge H Cohen, Elizabeth T Golub, Deborah Gustafson, Daniel Merenstein, Wendy J Mack, Phyllis C Tien, Jeri Nieves, Michael T Yin
OBJECTIVES: A Fracture risk assessment tool (FRAX®) using clinical risk factors (CRFs) alone underestimates fracture risk in HIV-infected men. Our objective was to determine whether accuracy of FRAX would be improved by considering HIV as a cause of secondary osteoporosis, and further improved with addition of DXA parameters in HIV-infected women. DESIGN: Subgroup analysis of Women's Interagency HIV Study. METHODS: We included 1148 women (900 HIV-infected and 248 uninfected) over age 40 with data to approximate FRAX CRFs and 10-year observational data for incident fragility fractures; 181 (20%) HIV-infected women had DXA data...
May 11, 2018: AIDS
https://www.readbyqxmd.com/read/29760608/calf-circumference-as-a-simple-screening-marker-for-diagnosing-sarcopenia-in-older-korean-adults-the-korean-frailty-and-aging-cohort-study-kfacs
#10
Sunyoung Kim, Miji Kim, Yunhwan Lee, ByungSung Kim, Tai Young Yoon, Chang Won Won
Background: The purpose of this study was to explore the optimal cut-off point of calf circumference (CC) as a simple proxy marker of appendicular skeletal muscle mass (ASM) and sarcopenia in the Korean elderly and to test the criterion-related validity of CC by analyzing its relationships with the physical function. Methods: The participants were 657 adults aged 70 to 84 years who had completed both dual energy X-ray absorptiometry (DXA) and physical function test in the first baseline year of the Korean Frailty and Aging Cohort Study...
May 14, 2018: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/29758361/bone-accrual-in-oligo-amenorrheic-athletes-eumenorrheic-athletes-and-non-athletes
#11
Vibha Singhal, Karen Campoverde Reyes, Brooke Pfister, Kathryn Ackerman, Meghan Slattery, Katherine Cooper, Alexander Toth, Nupur Gupta, Mark Goldstein, Kamryn Eddy, Madhusmita Misra
BACKGROUND: Mechanical loading improves bone mineral density (BMD) and strength while decreasing fracture risk. Cross-sectional studies show that exercise advantage is lost in oligo-amenorrheic athletes (OA). Longitudinal studies examining the opposing effects of exercise and hypogonadism on bone are lacking in adolescents/young adults. OBJECTIVE: Evaluate differences in bone accrual over 12 months in OA, eumenorrheic athletes (EA) and non-athletes (NA). We hypothesized that bone accrual would be lower in OA than EA and NA, with differences most pronounced at non-weight bearing trabecular sites...
May 11, 2018: Bone
https://www.readbyqxmd.com/read/29757054/pre-season-body-composition-adaptations-in-elite-caucasian-and-polynesian-rugby-union-athletes
#12
Adam J Zemski, Shelley E Keating, Elizabeth M Broad, Damian J March, Karen Hind, Gary J Slater
During pre-season training, rugby union (RU) athletes endeavour to enhance physical performance characteristics that are aligned with on-field success. Specific physique traits are associated with performance, therefore body composition assessment is routinely undertaken in elite environments. This study aimed to quantify pre-season physique changes in elite RU athletes with unique morphology and divergent ethnicity. Twenty-two Caucasian and Polynesian professional RU athletes received dual-energy X-ray absorptiometry (DXA) assessments at the beginning and conclusion of an 11-week pre-season...
May 14, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29757050/longitudinal-changes-in-body-composition-assessed-using-dxa-and-surface-anthropometry-show-good-agreement-in-elite-rugby-union-athletes
#13
Adam J Zemski, Shelley E Keating, Elizabeth M Broad, Gary J Slater
Rugby union athletes have divergent body composition based on the demands of their on-field playing position and ethnicity. With an established association between physique traits and positional requirements, body composition assessment is routinely undertaken. Surface anthropometry and dual-energy X-ray absorptiometry (DXA) are the most common assessment techniques utilised, often undertaken synchronously. This study aims to investigate the association between DXA and surface anthropometry when assessing longitudinal changes in fat free mass (FFM) and fat mass (FM) in rugby union athletes...
May 14, 2018: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29756967/dual-energy-x-ray-absorptiometry-dxa-reliability-and-intraobserver-reproducibility-for-segmental-body-composition-measuring
#14
Osvaldo Costa Moreira, Claudia Eliza Patrocinio de Oliveira, José Antonio De Paz
BACKGROUND: the measurement precision of body composition can interfere on the diagnosis and prescription of diseases' treatment. Furthermore, with regard to dual energy X-rays absorptiometry (DXA), there may be important differences between the measures of regions of interest (ROI) automatically performed by DXA or manually by an evaluator, which can cause measurement error and influence the evaluation or diagnosis. AIM: thus, this study aimed to evaluate the measurement reliability of body composition by DXA and intraobserver reproducibility for the ROI measurement...
January 17, 2018: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/29754949/interpretation-of-dual-energy-x-ray-absorptiometry-derived-body-composition-change-in-athletes-a-review-and-recommendations-for-best-practice
#15
REVIEW
Karen Hind, Gary Slater, Brian Oldroyd, Matthew Lees, Shane Thurlow, Matthew Barlow, John Shepherd
Dual-energy X-ray absorptiometry (DXA) is a medical imaging device which has become the method of choice for the measurement of body composition in athletes. The objectives of this review were to evaluate published longitudinal DXA body composition studies in athletic populations for interpretation of "meaningful" change, and to propose a best practice measurement protocol. An online search of PubMed and CINAHL via EBSCO Host and Web of Science enabled the identification of studies published until November 2016...
March 23, 2018: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29750848/accelerated-bone-loss-in-older-men-effects-on-bone-microarchitecture-and-strength
#16
J A Cauley, A J Burghardt, S L Harrison, P M Cawthon, A V Schwartz, E Barrett Connor, Kristine E Ensrud, Lisa Langsetmo, S Majumdar, E Orwoll
Accelerated bone loss (ABL) shown on routine dual-energy X-ray absorptiometry (DXA) may be accompanied by microarchitectural changes, increased cortical porosity and lower bone strength. To test this hypothesis, we performed a cross-sectional study and used high resolution peripheral quantitative computed tomography (HR-pQCT) scans (SCANCO, Inc., Switzerland) to measure estimated bone strength and microarchitecture in the distal radius and distal and diaphyseal tibia. We studied 1628 men who attended the Year 14 exam of the Osteoporotic Fractures in Men (MrOS) study...
May 11, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29750829/robust-trabecular-microstructure-in-type-2-diabetes-revealed-by-individual-trabecula-segmentation-analysis-of-hr-pqct-images
#17
Jessica F Starr, Leonardo C Bandeira, Sanchita Agarwal, Ankit M Shah, Kyle K Nishiyama, Yizhong Hu, Donald J McMahon, X Edward Guo, Shonni J Silverberg, Mishaela R Rubin
Type 2 diabetes (T2D) patients have an increased fracture risk, which may be partly explained by compromised bone microarchitecture within the cortical bone compartment. Data on trabecular bone parameters in T2D are contradictory. By high resolution peripheral quantitative computed tomography (HR-pQCT) trabecular microarchitecture is preserved, yet larger trabecular holes are detected in T2D by MRI and DXA-based trabecular bone scores (TBS) are abnormal. To determine if there are differences in trabecular microstructure, connectivity and alignment in postmenopausal women with T2D as compared to controls, we performed individual trabecula segmentation (ITS) analysis on high-resolution peripheral quantitative computed tomography (HR-pQCT) scans of the distal radius and tibia in 92 women with (n = 42) and without (n = 50) T2D...
May 11, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29750646/circulating-steroid-levels-as-correlates-of-adipose-tissue-phenotype-in-premenopausal-women
#18
Geneviève B Marchand, Anne-Marie Carreau, Sofia Laforest, Julie-Anne Côté, Marleen Daris, Katherine Cianflone, Cornelia Prehn, Jerzy Adamski, André Tchernof
Background Obesity-related alterations in the circulating steroid hormone profile remain equivocal in women. Our objective was to identify circulating steroid levels that relate to increased adiposity and altered adipose phenotype in premenopausal women. Materials and methods In a sample of 42 premenopausal women [age 46 ± 3 years; body mass index (BMI) 27.1 ± 4.2 kg/m2], 19 plasma steroids were quantified by electrospray ionization-liquid chromatography-tandem mass spectroscopy (ESI-LC-MS/MS). Body composition and fat distribution were assessed by dual-energy X-ray absorptiometry (DXA) and computed tomography (CT), respectively...
May 11, 2018: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/29750126/vitamin-d-intake-among-premenopausal-women-living-in-jeddah-food-sources-and-relationship-to-demographic-factors-and-bone-health
#19
Tahani A Zareef, Robert T Jackson, Abdulkareem A Alkahtani
Background: Saudi women depend on food sources to maintain their serum 25(OH) D concentrations because covering by traditional clothing and time spent indoors limit their sun exposure. Little is known about vitamin D intake and its main food sources in Saudi Arabia. In addition, the association between vitamin D and calcium intake and bone mineral density (BMD) in young women is not well researched. Objectives: To assess the adequacy of vitamin D intake among Saudi women as compared to the estimated average requirements (EARs), to identify dietary vitamin D sources, to examine potential determinants of vitamin D intake, and to assess bone health and the association of calcium and vitamin D intake with BMD...
2018: Journal of Nutrition and Metabolism
https://www.readbyqxmd.com/read/29747276/-relationship-between-vertebral-ct-values-and-bone-mineral-density-in-patients-with-chronic-obstructive-pulmonary-disease
#20
K Li, P Wang, R Y Yan, S J Song
Objective: To explore a simple method for early detection of osteoporosis in patients with chronic obstructive pulmonary disease (COPD), by analyzing the correlation between computed tomography (CT) values of the thoracolumbar vertebrae and dual energy X ray absorptiometry (DXA). Methods: 86 patients with acute exacerbation of COPD were included in this study. The average age of the patients, including 57 males and 29 females, was 74±10 years. They all received chest CT and DXA examination within 1 month after admission...
May 12, 2018: Chinese Journal of Tuberculosis and Respiratory Diseases
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