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Journal of Clinical Densitometry

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https://www.readbyqxmd.com/read/28302355/effects-of-short-term-calcium-supplementation-in-children-and-adolescents-with-phenylketonuria
#1
Nancy Y Y Tanaka, Marlene F Turcato, Carolina F Nicoletti, Carla B Nonino, Luciana D Martins, Odilon Iannetta, Carlos Guerreiro, Gisele G Santos, Júlio S Marchini
Reduction of bone mineral density and the risk of osteopenia have been reported to occur in phenylketonuria (PKU) patients. This study aimed to evaluate the short-term effects of calcium supplementation in phenylketonuric children and adolescents. The study included 18 patients with PKU aged 5-18 yr (61% male) under clinical and nutritional treatment. Evaluation of food intake, anthropometry, and biochemical and phalangeal quantitative ultrasound were performed before (phase 1) and after (phase 2) calcium supplementation (1000 mg/d) for 34 d...
March 13, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28302354/quadrant-analysis-of-quantitative-computed-tomography-scans-of-the-femoral-neck-reveals-superior-region-specific-weakness-in-young-and-middle-aged-men-with-type-1-diabetes-mellitus
#2
Takuma Kuroda, Koji Ishikawa, Takashi Nagai, Tomoyasu Fukui, Tsutomu Hirano, Katsunori Inagaki
We have previously shown that the intertrochanter of young and middle-aged patients with type 1 diabetes mellitus (T1DM) showed higher buckling ratio (an index of cortical instability) and lower volumetric bone mineral density (vBMD). However, we have not yet reported the detailed findings regarding the mechanical and density properties of the femoral neck. Therefore, we present a subanalysis of our previous study with the aim of further evaluating the middle third of the femoral neck via quadrant quantitative computed tomography in young and middle-aged patients with T1DM...
March 13, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28285742/peripheral-quantitative-computed-tomography-pqct-measures-contribute-to-the-understanding-of-bone-fragility-in-older-patients-with-low-trauma-fracture
#3
Hongyuan Jiang, Christopher J Yates, Alexandra Gorelik, Ashwini Kale, Qichun Song, John D Wark
Dual-energy X-ray absorptiometry (DXA) as currently used has limitations in identifying patients with osteoporosis and predicting occurrence of fracture. We aimed to express peripheral quantitative computed tomography (pQCT) variables of patients with low-trauma fracture as T-scores by using T-score scales obtained from healthy young women, and to evaluate the potential clinical utility of pQCT for the assessment of bone fragility. Fracture patients were recruited from a fracture liaison service at the Royal Melbourne Hospital...
March 9, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28258886/cross-calibrated-dual-energy-x-ray-absorptiometry-scanners-demonstrate-systematic-bias-in-pediatric-and-young-adult-females
#4
Jodi N Dowthwaite, Kristen A Dunsmore, Dongliang Wang, Paula F Rosenbaum, Tamara A Scerpella
Consistency of dual-energy X-ray absorptiometry (DXA) scan results is critical for data integrity. For pediatric subjects, the extent to which cross-calibration of DXA scanners alleviates model-to-model scanner differences is unclear. In the current study, DXA bone outcomes were compared for same-day measurements performed using different scanners, cross-calibrated to alleviate discrepancies (Hologic; Discovery A [DISCO] and QDR 4500W [QDR]). Interscanner differences were evaluated in approximately 130 females aged 8-24 yr...
February 28, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28256308/precision-of-second-generation-high-resolution-peripheral-quantitative-computed-tomography-intra-and-intertester-reproducibilities-and-factors-involved-in-the-reproducibility-of-cortical-porosity
#5
Ko Chiba, Narihiro Okazaki, Ayako Kurogi, Yusaku Isobe, Akihiko Yonekura, Masato Tomita, Makoto Osaki
High-resolution peripheral quantitative computed tomography (HR-pQCT) was upgraded to a second generation in 2014 with higher spatial resolution, faster scan time, and a different measurement algorithm. The purpose of this study was to investigate the precision of the second-generation HR-pQCT. The distal radius and tibia of 15 healthy men and women (age range of 20-74 yr, 8 men and 7 women) were scanned by second-generation HR-pQCT, and their geometry, bone mineral density (BMD), and the microstructure of trabecular and cortical bones were evaluated...
February 27, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28238606/comparison-of-associations-of-dxa-and-ct-visceral-adipose-tissue-measures-with-insulin-resistance-lipid-levels-and-inflammatory-markers
#6
John T Schousboe, Lisa Langsetmo, Ann V Schwartz, Brent C Taylor, Tien N Vo, Allyson M Kats, Elizabeth Barrett-Connor, Eric S Orwoll, Lynn M Marshall, Iva Miljkovic, Nancy E Lane, Kristine E Ensrud
Visceral adipose tissue (VAT) measured by computed tomography (CT) is related to insulin resistance, lipids, and serum inflammatory markers. Our objective was to compare the strength of the associations of VAT measured using dual-energy X-ray absorptiometry (DXA-VAT) and CT (CT-VAT) with insulin resistance, serum lipids, and serum markers of inflammation. For 1117 men aged 65 and older enrolled in the Osteoporotic Fractures in Men Study, the cross-sectional associations of DXA-VAT and CT-VAT with homeostasis model assessment of insulin resistance (homa2ir), C-reactive protein, and high-density lipoprotein (HDL) cholesterol were estimated with regression models and compared using a Hausman test...
February 23, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28233710/vitamin-d-deficiency-and-its-influence-on-bone-metabolism-and-density-in-a-brazilian-population-of-healthy-men
#7
Marlianne Leite Moreira, Leonardo Vieira Neto, Miguel Madeira, Renata Francioni Lopes, Maria Lucia Fleiuss Farias
Vitamin D supplementation is universal for postmenopausal women, but not for elderly men, in whom osteoporosis is also commonly neglected. This study aimed to evaluate vitamin D deficiency and its association with secondary hyperparathyroidism, bone resorption, and bone density in Brazilian men. A total of 120 men, 20-93 years, were evaluated for serum calcium, phosphorus, creatinine, 25-hydroxyvitamin D (25(OH)D), parathyroid hormone, biochemical markers of bone resorption (carboxy-terminal telopeptide, carboxy-terminal peptide of type I collagen), and bone mineral density (dual-energy X-ray absorptiometry)...
February 20, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28185765/proceedings-of-the-2016-santa-fe-bone-symposium-new-concepts-in-the-management-of-osteoporosis-and-metabolic-bone-diseases
#8
REVIEW
E Michael Lewiecki, John P Bilezikian, Susan V Bukata, Pauline Camacho, Bart L Clarke, Michael R McClung, Paul D Miller, John Shepherd
The Santa Fe Bone Symposium is an annual meeting of healthcare professionals and clinical researchers that details the clinical relevance of advances in knowledge of skeletal diseases. The 17th Santa Fe Bone Symposium was held in Santa Fe, New Mexico, USA, on August 5-6, 2016. The program included plenary lectures, oral presentations by endocrinology fellows, meet-the-professor sessions, and panel discussions, all aimed to provide ample opportunity for interactive discussions among all participants. Symposium topics included recent developments in the translation of basic bone science to patient care, new clinical practice guidelines for postmenopausal osteoporosis, management of patients with disorders of phosphate metabolism, new and emerging treatments for rare bone diseases, strategies to enhance fracture healing, and an update on Bone Health Extension for Community Healthcare Outcomes, using a teleconferencing platform to elevate the level of knowledge of healthcare professionals in underserved communities to deliver best practice care for skeletal diseases...
February 6, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28161223/genetic-polymorphisms-in-the-esr1-and-vdr-genes-do-not-correlate-with-osteoporosis-in-patients-with-familial-dysautonomia
#9
David Cheishvili, Channa Maayan, Daniel M Sapozhnikov, Elad Lax, Rivka Dresner-Pollak
One of the major clinical manifestations of familial dysautonomia (FD)-a rare, neurodegenerative, autosomal-recessive disorder-is a high incidence and early onset of osteoporotic bone fractures. Early diagnosis is essential to initiate preventative therapy in at-risk patients and thus improve quality of life. However, the current lack of understanding of the complex relationship between FD and osteoporosis etiology precludes early diagnosis, and as such, accurate predictors of osteoporosis development in FD patients remain to be determined...
February 1, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28153410/effectiveness-of-osteoporosis-self-assessment-tool-for-asians-in-screening-for-osteoporosis-in-healthy-males-over-40-years-old-in-china
#10
Ji-Yuan Huang, Wen-Zhong Song, Mei Huang
In this study, we evaluated the effectiveness of the Osteoporosis Self-assessment Tool for Asians (OSTA) in screening for osteoporosis in the elderly male population in the Chengdu area, China. The Lunar Prodigy Advance bone densitometer was used to measure the bone mineral density of 11,039 healthy males over the age of 40 years. Men with OSTA scores of >-1, -4 < OSTA ≤ -1, or ≤-4 were assigned to the low-risk, moderate-risk, or high-risk group, respectively. The T-scores measured with dual-energy X-ray absorptiometry at the different sites were compared across the groups...
January 30, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28065515/the-importance-of-evaluating-body-composition-with-dual-energy-x-ray-absorptiometry-in-men-the-structure-of-the-aging-men-s-bones-strambo-study
#11
EDITORIAL
Giuseppe Defeudis
No abstract text is available yet for this article.
January 5, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28065423/investigating-the-effects-of-motion-streaks-on-pqct-derived-leg-muscle-density-and-its-association-with-fractures
#12
Adrian C H Chan, Jonathan D Adachi, Alexandra Papaioannou, Andy Kin On Wong
Lower peripheral quantitative computed tomography (pQCT)-derived leg muscle density has been associated with fragility fractures in postmenopausal women. Limb movement during image acquisition may result in motion streaks in muscle that could dilute this relationship. This cross-sectional study examined a subset of women from the Canadian Multicentre Osteoporosis Study. pQCT leg scans were qualitatively graded (1-5) for motion severity. Muscle and motion streak were segmented using semi-automated (watershed) and fully automated (threshold-based) methods, computing area, and density...
January 3, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28043776/scan-mode-selection-on-the-ge-lunar-idxa-densitometer
#13
LETTER
Shane Thurlow, Brian Oldroyd, Karen Hind
No abstract text is available yet for this article.
December 30, 2016: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28259260/osteonecrosis-of-the-jaw
#14
EDITORIAL
Ronald C Hamdy
No abstract text is available yet for this article.
January 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/27956123/case-based-review-of-osteonecrosis-of-the-jaw-onj-and-application-of-the-international-recommendations-for-management-from-the-international-task-force-on-onj
#15
REVIEW
Aliya A Khan, Archie Morrison, David L Kendler, Rene Rizzoli, David A Hanley, Dieter Felsenberg, Laurie K McCauley, Felice O'Ryan, Ian R Reid, Salvatore L Ruggiero, Akira Taguchi, Sotirios Tetradis, Nelson B Watts, Maria Luisa Brandi, Edmund Peters, Teresa Guise, Richard Eastell, Angela M Cheung, Suzanne N Morin, Basel Masri, Cyrus Cooper, Sarah L Morgan, Barbara Obermayer-Pietsch, Bente L Langdahl, Rana Al Dabagh, K Shawn Davison, George K Sándor, Robert G Josse, Mohit Bhandari, Mohamed El Rabbany, Dominique D Pierroz, Riad Sulimani, Deborah P Saunders, Jacques P Brown, Juliet Compston
Osteonecrosis of the jaw (ONJ) has been associated with antiresorptive therapy in both oncology and osteoporosis patients. This debilitating condition is very rare and advances in diagnosis and management may now effectively reduce the risk of its development and offer valuable treatment options for affected patients. This paper provides a case-based review of ONJ and application of the International Task Force on ONJ (referred to as the "Task Force") recommendations for the diagnosis and management of ONJ...
January 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/27773537/total-body-less-head-measurement-is-most-appropriate-for-lean-mass-assessment-in-adults
#16
LETTER
Diane Krueger, Ellen Siglinsky, Bjoern Buehring, Neil Binkley
No abstract text is available yet for this article.
January 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/27637728/marrow-fat-quality-differences-by-sex-in-healthy-adults
#17
Jamilly G Maciel, Iana M de Araújo, Adriana L Carvalho, Marcelo N Simão, Clara M Bastos, Luiz E A Troncon, Carlos E G Salmon, Francisco J A de Paula, Marcello H Nogueira-Barbosa
Several studies have demonstrated the relationship between bone marrow adiposity (BMAT) and bone mass. (1)H magnetic resonance spectroscopy is a noninvasive technique able to assess both BMAT quantity and quality. The aim of our study was to perform quantitative and qualitative analyses of BMAT and to investigate its association with bone mineral density (BMD) in healthy nonobese volunteers. Fifty-one healthy volunteers, 21 men and 30 women, underwent 1.5 T (1)H magnetic resonance spectroscopy of the lumbar spine...
January 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/27634336/repeatability-of-volume-and-regional-body-composition-measurements-of-the-lower-limb-using-dual-energy-x-ray-absorptiometry
#18
Caroline A Gjorup, Bo Zerahn, Sarah Juul, Helle W Hendel, Karl Bang Christensen, Lisbet R Hölmich
Lower limb lymphedema is a dynamic condition in which tissue composition and volume measurements are affected. Various definitions of lower limb lymphedema exist but volume differences between the limbs are widely used. It is therefore necessary to have a readily available noninvasive measurement technique allowing multiple measurements of the lower limbs. This study investigated the repeatability of duplicate volume and regional body composition measurements of the lower limb using the GE Lunar Prodigy dual-energy X-ray absorptiometry (DXA) scanner Prodigy (GE Medical Systems, Madison, WI)...
January 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/27618369/challenges-in-the-use-of-cross-sectional-data-to-quantify-growth-and-deterioration-of-bone-structure-during-advancing-age
#19
EDITORIAL
Ali Ghasem-Zadeh, Ego Seeman
No abstract text is available yet for this article.
January 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/27616291/bone-mass-outcomes-in-patients-with-osteoporosis-treated-with-risedronate-after-alendronate-failure-a-12-month-follow-up-study
#20
Leonardo Teixeira Mendonça, Marcelo Medeiros Pinheiro, Vera Lúcia Szejnfeld, Charlles Heldan de Moura Castro
Oral bisphosphonates are the drugs most frequently used for the treatment of osteoporosis. Clinicians usually switch between these drugs in clinical practice based on differences in efficacy. We aim to investigate the reasons associated with switching between oral bisphosphonates and to evaluate bone mass response and the incidence of fractures 12 mo after the exchange in a cohort of patients with osteoporosis seen at a tertiary hospital. Patients with osteoporosis who switched between oral bisphosphonates between January 2007 and December 2014 were included...
January 2017: Journal of Clinical Densitometry
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