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https://www.readbyqxmd.com/read/29786884/bone-morbidity-and-recovery-in-children-with-acute-lymphoblastic-leukemia-results-of-a-six-year-prospective-cohort-study
#1
Leanne M Ward, Jinhui Ma, Bianca Lang, Josephine Ho, Nathalie Alos, Mary Ann Matzinger, Nazih Shenouda, Brian Lentle, Jacob L Jaremko, Beverly Wilson, David Stephure, Robert Stein, Anne Marie Sbrocchi, Celia Rodd, Victor Lewis, Sara Israels, Ronald M Grant, Conrad V Fernandez, David B Dix, Elizabeth A Cummings, Robert Couch, Elizabeth Cairney, Ronald Barr, Sharon Abish, Stephanie A Atkinson, John Hay, Frank Rauch, David Moher, Kerry Siminoski, Jacqueline Halton
Osteoporotic fractures are a significant cause of morbidity in acute lymphoblastic leukemia (ALL). Our objective was to determine the incidence and predictors of fractures and recovery from osteoporosis in pediatric ALL over 6 years following glucocorticoid initiation. Vertebral fractures (VF) and vertebral body reshaping were assessed on annual spine radiographs, low-trauma non-VF were recorded at regular intervals and spine bone mineral density (BMD) was captured every 6 months for 4 years and then annually...
May 22, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29783994/large-scale-transcriptomic-analysis-reveals-that-pridopidine-reverses-aberrant-gene-expression-and-activates-neuroprotective-pathways-in-the-yac128-hd-mouse
#2
Rebecca Kusko, Jennifer Dreymann, Jermaine Ross, Yoonjeong Cha, Renan Escalante-Chong, Marta Garcia-Miralles, Liang Juin Tan, Michael E Burczynski, Ben Zeskind, Daphna Laifenfeld, Mahmoud Pouladi, Michal Geva, Iris Grossman, Michael R Hayden
BACKGROUND: Huntington Disease (HD) is an incurable autosomal dominant neurodegenerative disorder driven by an expansion repeat giving rise to the mutant huntingtin protein (mHtt), which is known to disrupt a multitude of transcriptional pathways. Pridopidine, a small molecule in development for treatment of HD, has been shown to improve motor symptoms in HD patients. In HD animal models, pridopidine exerts neuroprotective effects and improves behavioral and motor functions. Pridopidine binds primarily to the sigma-1 receptor, (IC50 ~ 100 nM), which mediates its neuroprotective properties, such as rescue of spine density and aberrant calcium signaling in HD neuronal cultures...
May 21, 2018: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/29783868/low-bone-mineral-density-in-ambulatory-persons-with-cerebral-palsy-a-systematic-review
#3
Cindy T R Mus-Peters, Bionka M A Huisstede, Suzie Noten, Minou W M G C Hitters, Wilma M A van der Slot, Rita J G van den Berg-Emons
PURPOSE: Non-ambulatory persons with cerebral palsy are prone to low bone mineral density. In ambulatory persons with cerebral palsy, bone mineral density deficits are expected to be small or absent, but a consensus conclusion is lacking. In this systematic review bone mineral density in ambulatory persons with cerebral palsy (Gross Motor Function Classification Scales I-III) was studied. MATERIALS AND METHODS: Medline, Embase, and Web of Science were searched. According to international guidelines, low bone mineral density was defined as Z-score ≤ -2...
May 22, 2018: Disability and Rehabilitation
https://www.readbyqxmd.com/read/29783670/adult-premenopausal-bone-health-related-to-reproductive-characteristics-population-based-data-from-the-canadian-multicentre-osteoporosis-study-cam-os
#4
Azita Goshtasebi, Claudie Berger, Susan I Barr, Christopher S Kovacs, Tanveer Towheed, K Shawn Davison, Jerilynn C Prior
Amenorrhea is important for women's bone health. However, few have reported reproductive, anthropometric (body mass index [BMI], height) and bone health (areal bone mineral density [BMD], prevalent fractures) in a population-based study. The purposes of this cross-sectional study of women in the randomly-selected Canadian Multicentre Osteoporosis Study (CaM os ) population were: (1) to describe reproductive, demographic, anthropometric and lifestyle variables; and (2) in menstruating women, to relate reproductive and other variables to BMD at the lumbar spine (L1-4, LS), femoral neck (FN) and total hip (TH) sites and to prevalent fragility fractures...
May 18, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29783641/premature-spinal-bone-loss-in-women-living-with-hiv-is-associated-with-shorter-leukocyte-telomere-length
#5
Shirin Kalyan, Neora Pick, Alice Mai, Melanie C M Murray, Kristen Kidson, Jackson Chu, Arianne Y K Albert, Hélène C F Côté, Evelyn J Maan, Azita Goshtasebi, Deborah M Money, Jerilynn C Prior
With advances in combination antiretroviral therapy (cART), people living with HIV are now surviving to experience aging. Evidence suggests that individuals living with HIV are at greater risk for low bone mineral density (BMD), osteoporosis, and fractures. Better understanding of the pathophysiology of bone health in women living with HIV (WLWH) is important for treatment strategies. The goal of this study was to explore new biological factors linked to low BMD in WLWH. Standardized BMD measures of WLWH were compared to reference values from an unselected population of women from the same geographical region of the same age range...
May 18, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29781786/sitagliptin-rescues-memory-deficits-in-parkinsonian-rats-via-upregulating-bdnf-to-prevent-neuron-and-dendritic-spine-loss
#6
Jing Li, Shuhu Zhang, Chenye Li, Mei Li, Lan Ma
OBJECTIVES: Parkinson's disease (PD) is a neurodegenerative disease with high morbidity among adults worldwide that causes tremendous trouble to people's lives. The purpose of this study was to investigate the impact of sitagliptin on PD and its potential mechanism. METHODS: First, the memory of rats in each group was evaluated with the Morris water maze (MWM) test and the passive avoidance test. Then, both brain-derived neurotrophic factor (BDNF) protein and mRNA levels were detected by ELISA and qPCR assays, respectively...
May 21, 2018: Neurological Research
https://www.readbyqxmd.com/read/29779504/association-of-dietary-patterns-of-american-adults-with-bone-mineral-density-and-fracture
#7
Mohsen Mazidi, Andre Pascal Kengne, Hassan Vatanparast
OBJECTIVE: In a representative sample of US adults, we investigated the associations of nutrient patterns (NP) with bone mineral density (BMD) and fractures. DESIGN: Cross-sectional. SETTING: US community-based National Health and Nutrition Examination Survey (NHANES). SUBJECTS: Participants with measured data on dietary intake and BMD from 2005 to 2010 were included. Principal components analysis was used to identify NP...
May 21, 2018: Public Health Nutrition
https://www.readbyqxmd.com/read/29778761/preferential-stabilization-of-newly-formed-dendritic-spines-in-motor-cortex-during-manual-skill-learning-predicts-performance-gains-but-not-memory-endurance
#8
Taylor A Clark, Min Fu, Andrew K Dunn, Yi Zuo, Theresa A Jones
Previous findings that skill learning is associated with the formation and preferential stabilization of new dendritic spines in cortex have raised the possibility that this preferential stabilization is a mechanism for lasting skill memory. We investigated this possibility in adult mice using in vivo two-photon imaging to monitor spine dynamics on superficial apical dendrites of layer V pyramidal neurons in motor cortex during manual skill learning. Spine formation increased over the first 3 days of training on a skilled reaching task, followed by increased spine elimination...
May 17, 2018: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/29777688/proteomic-changes-during-adult-stage-in-pre-optic-hypothalamus-hippocampus-and-pituitary-regions-of-female-rat-brain-following-neonatal-exposure-to-estradiol-17%C3%AE
#9
Vijayakumar Govindaraj, Radhika Nagamangalam Shridharan, Addicam Jagannadha Rao
Although neonatal exposure to estrogen or estrogenic compounds results in irreversible changes in the brain function and reproductive abnormalities during adulthood but the underlying mechanisms are still largely unknown. The present study has attempted to compare the protein profiles of sexually dimorphic brain regions of adult female rats which were exposed to estradiol- 17β during neonatal period. The total proteins extracted from pre-optic area (POA), hypothalamus, hippocampus and pituitary of control and neonatally E2 treated female rats was subjected to 2D-SDS-PAGE and differentially expressed proteins were identification by MALDI TOF/TOF-MS...
May 16, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29776756/sex-hormone-binding-globulin-is-a-biomarker-associated-with-nonvertebral-fracture-in-men-on-dialysis-therapy
#10
Jasna Aleksova, Phillip Wong, Robert McLachlan, Kay Weng Choy, Peter R Ebeling, Frances Milat, Grahame J Elder
Gonadal hormones impact bone health and higher values of sex hormone-binding globulin (SHBG) have been independently associated with fracture risk in men without chronic kidney disease. People with chronic kidney disease have a greatly increased fracture risk, and gonadal dysfunction is common in men receiving dialysis treatment. Nevertheless, in these men the effect of gonadal steroids and SHBG on bone mineral density (BMD) and fracture risk is unknown. Here we investigate relationships between gonadal steroids, SHBG, BMD and fracture in men on long-term dialysis therapy, awaiting kidney or simultaneous pancreas kidney transplantation...
May 15, 2018: Kidney International
https://www.readbyqxmd.com/read/29776736/trabecular-bone-score-at-the-distal-femur-and-proximal-tibia-in-individuals-with-spinal-cord-injury
#11
Stacey Lobos, Anne Cooke, Gillian Simonett, Chester Ho, Steven K Boyd, W Brent Edwards
Rapid declines in bone mineral density (BMD) at the knee after spinal cord injury (SCI) are associated with an increased risk of fracture. Evaluation of bone quality using the trabecular bone score (TBS) may provide a complimentary measure to BMD assessment to examine bone health and fracture risk after SCI. The purpose of this study was to assess bone mineral density (BMD) and trabecular bone score (TBS) at the knee in individuals with and without SCI. Nine individuals with complete SCI (mean time since SCI 2...
April 24, 2018: Journal of Clinical Densitometry
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
#12
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
#13
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
#14
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
#15
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/29770222/recurrent-vertebral-fractures-in-a-young-adult-a-closer-look-at-bone-health-in-type-1-diabetes-mellitus
#16
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/29769586/increase-in-il-31-serum-levels-is-associated-with-reduced-structural-damage-in-early-axial-spondyloarthritis
#17
Nicolas Rosine, Adrien Etcheto, Houria Hendel-Chavez, Raphaèle Seror, Karine Briot, Anna Molto, Philippe Chanson, Yassine Taoufik, Daniel Wendling, Rik Lories, Francis Berenbaum, Rosaline van den Berg, Pascal Claudepierre, Antoine Feydy, Maxime Dougados, Christian Roux, Corinne Miceli-Richard
In spondyloarthritis, little is known about the relation between circulating cytokines and patient phenotype. We have quantified serum levels of T helper type 1 cell (Th1), Th2 and Th17 cytokines in patients with recent-onset axial spondyloarthritis (AxSpA) from the DESIR cohort, a prospective, multicenter French cohort consisting of 708 patients with recent-onset inflammatory back pain (duration >3 months but <3 years) suggestive of AxSpA. Serum levels of Th1, Th2, and Th17 cytokines were assessed at baseline in patients from the DESIR cohort fulfilling the ASAS criteria (ASAS+) and were compared with age- and sex-matched healthy controls...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29768627/tsh-receptor-antibodies-may-prevent-bone-loss-in-pre-and-postmenopausal-women-with-graves-disease-and-graves-orbitopathy
#18
Mira Siderova, Kiril Hristozov, Aleksandra Tsukeva
OBJECTIVE: Thyrotoxicosis is established risk factor for osteoporosis due to increased bone turnover. Glucocorticoids often administered for Graves' orbitopathy (GO) have additional negative effect on bone mineral density (BMD). Our aim was to examine the influence of thyroid hormones, TSH, TSH-receptor antibodies (TRAb) and glucocorticoid treatment on bone in women with Graves' thyrotoxicosis and Graves' orbitopathy (GO). SUBJECTS AND METHODS: Forty seven women with Graves' disease, mean age 55...
March 2018: Archives of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29768330/risk-factors-for-osteoporosis-in-liver-cirrhosis-patients-measured-by-transient-elastography
#19
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/29766835/are-consumption-of-dairy-products-and-physical-activity-independently-related-to-bone-mineral-density-of-6-year-old-children-longitudinal-and-cross-sectional-analyses-in-a-birth-cohort-from-brazil
#20
Renata M Bielemann, Juliana Dos S Vaz, Marlos R Domingues, Alicia Matijasevich, Iná S Santos, Ulf Ekelund, Bernardo L Horta
OBJECTIVE: To evaluate cross-sectional and longitudinal associations of consumption of dairy products and physical activity (PA) with bone mineral density (BMD). DESIGN: Cohort study with children from the 2004 Pelotas (Brazil) Birth Cohort. SETTING: Pelotas, a medium-sized Brazilian city. SUBJECTS: The study started in 2004 and mothers/children were interviewed/measured periodically from birth to age 6 years. PA was measured by maternal proxy at 4 and 6 years and by accelerometry at 6 years...
May 16, 2018: Public Health Nutrition
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