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Steroid bone density

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https://www.readbyqxmd.com/read/29102474/lumbar-spine-trabecular-bone-score-tbs-reflects-diminished-bone-quality-in-patients-with-diabetes-mellitus-and-oral-glucocorticoid-therapy
#1
Yunfeng Xue, Andrea L Baker, Shahla Nader, Philip Orlander, Anthony J Sanchez, James Kellam, Nahid J Rianon, Catherine G Ambrose
Trabecular bone score (TBS) is a texture parameter that measures the grayscale variation within dual-energy X-ray absorptiometry (DXA) images, and has been shown to significantly correlate with the 3-dimensional bone microarchitecture. The objective of this study was to determine whether TBS is a better clinical tool than traditionally used bone mineral density (BMD) to detect the skeletal deterioration seen in patients with diabetes (DM), patients undergoing oral glucocorticoid (GC) therapy, and patients who are both diabetic and taking steroids (GC + DM)...
November 1, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/29066903/fat-embolism-after-fractures-in-duchenne-muscular-dystrophy-an-underdiagnosed-complication-a-systematic-review
#2
REVIEW
David Feder, Miriam Eva Koch, Beniamino Palmieri, Fernando Luiz Affonso Fonseca, Alzira Alves de Siqueira Carvalho
Duchenne muscular dystrophy is the most frequent lethal genetic disease. Several clinical trials have established both the beneficial effect of steroids in Duchenne muscular dystrophy and the well-known risk of side effects associated with their daily use. For many years it has been known that steroids associated with ambulation loss lead to obesity and also damage the bone structure resulting in the bone density reduction and increased incidence of bone fractures and fat embolism syndrome, an underdiagnosed complication after fractures...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/29039554/microrna-23a-3p-inhibitor-decreases-osteonecrosis-incidence-in-a-rat-model
#3
Yulei Dong, Tao Li, Yulong Li, Shaoda Ren, Junfen Fan, Xisheng Weng
The mechanism of steroid-associated femoral head necrosis remains unclear. The present study investigated the role of microRNA-23a-3p (miR-23a-3p) in the incidence of osteonecrosis in a rat model. An miR-23a-3p mimic, an inhibitor and a negative control were transfected into bone mesenchymal stem cells using a lentiviral vector, and then injected into the steroid-induced femoral head necrosis model. Osteonecrosis incidence was assessed by micro computed tomography and histopathology. Low-density lipoprotein receptor-related protein 5 (LRP-5) expression was assessed by immunohistochemistry...
December 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29022558/klinefelter-syndrome-in-childhood-variability-in-clinical-and-molecular-findings
#4
Neşe Akcan, Şükran Poyrazoğlu, Firdevs Baş, Rüveyde Bundak, Feyza Darendeliler
OBJECTIVE: Klinefelter syndrome (KS) is the most common (1/500-1/1000) chromosomal disorder in males, but only 10% of cases are identified in childhood. This study aimed to review the data of the children with KS to assess the age and reason for diagnosis, clinical and laboratory findings, as well as the presence of comorbidities. METHODS: Twenty-three KS patients were analyzed retrospectively. Age at admission, presenting symptoms, comorbid problems, height, weight, pubertal status, biochemical findings, hormone profiles, bone mineral density, and karyotype were evaluated...
October 12, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/29018933/from-osteoimmunology-to-osteomicrobiology-how-the-microbiota-and-the-immune-system-regulate-bone
#5
REVIEW
Emory Hsu, Roberto Pacifici
Osteomicrobiology refers to the role of microbiota in bone health and the mechanisms by which the microbiota regulates post-natal skeletal development, bone aging, and pathologic bone loss. Here, we review recent reports linking gut microbiota to changes in bone phenotype. A pro-inflammatory cytokine milieu drives bone resorption in conditions such as sex steroid hormone deficiency. The response of the immune system to activation by the microbiome results in increased circulating osteoclastogenic cytokines in a T cell-dependent mechanism...
October 10, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28901203/the-role-of-monocyte-percentage-in-osteoporosis-in-male-rheumatic-diseases
#6
Yu-Jih Su, Chao Tung Chen, Nai-Wen Tsai, Chih-Cheng Huang, Hung-Chen Wang, Chia-Te Kung, Wei-Che Lin, Ben-Chung Cheng, Chih-Min Su, Sheng-Yuan Hsiao, Cheng-Hsien Lu
Osteoporosis is easily overlooked in male patients, especially in the field of rheumatic diseases mostly prevalent with female patients, and its link to pathogenesis is still lacking. Attenuated monocyte apoptosis from a transcriptome-wide expression study illustrates the role of monocytes in osteoporosis. This study tested the hypothesis that the monocyte percentage among leukocytes could be a biomarker of osteoporosis in rheumatic diseases. Eighty-seven males with rheumatic diseases were evaluated in rheumatology outpatient clinics for bone mineral density (BMD) and surrogate markers, such as routine peripheral blood parameters and autoantibodies...
November 2017: American Journal of Men's Health
https://www.readbyqxmd.com/read/28900675/bone-disease-in-connective-tissue%C3%A2-disease-systemic-lupus-erythematosus
#7
REVIEW
Irene E M Bultink
This article reviews recent advances in the research of the mechanisms of bone loss, as well as clinical features, economic impact and therapeutic implications of osteoporosis and fractures in patients with systemic lupus erythematosus (SLE) as an illustration of bone disease in a complex systemic autoimmune connective tissue disease. Recent studies demonstrated an increased incidence of osteoporosis and peripheral and vertebral fractures in patients with SLE. The aetiology of bone loss in SLE is multifactorial, including clinical osteoporosis risk factors, systemic inflammation, serological factors, metabolic factors, hormonal factors, possibly genetic factors and medication-induced adverse effects...
September 12, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28878383/avascular-necrosis-of-femoral-head-a-metabolomic-biophysical-biochemical-electron-microscopic-and-histopathological-characterization
#8
Aswath Narayanan, Prakash Khanchandani, Roshan M Borkar, Chandrashekar Reddy Ambati, Arun Roy, Xu Han, Ritesh N Bhoskar, Srinivas Ragampeta, Francis Gannon, Vijaya Mysorekar, Balasubramanyam Karanam, Sai Muthukumar V, Venketesh Sivaramakrishnan
Avascular necrosis of the femur head (AVNFH) is a debilitating disease caused due to the use of alcohol, steroids, following trauma or unclear (idiopathic) etiology, affecting mostly the middle aged population. Clinically AVNFH is associated with impaired blood supply to the femoral head resulting in bone necrosis and collapse. Although Homocysteine (HC) has been implicated in AVNFH, levels of homocysteine and its associated pathway metabolites have not been characterized. We demonstrate elevated levels of homocysteine and concomitantly reduced levels of vitamins B6 and B12, in plasma of AVNFH patients...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28877384/exosomes-secreted-from-mutant-hif-1%C3%AE-modified-bone-marrow-derived-mesenchymal-stem-cells-attenuate-early-steroid-induced-avascular-necrosis-of-femoral-head-in-rabbit
#9
Haile Li, Danping Liu, Chen Li, Shanjian Zhou, Dachuan Tian, Dawei Xiao, Huan Zhang, Feng Gao, Jianhua Huang
Mesenchymal stem cells (MSCs)-derived exosomes exhibit protective effects on damaged or diseased tissues. Hypoxia-inducible factor 1α (HIF-1α) plays a critical role in bone development. However, HIF-1α is easily biodegradable under normoxic conditions. The bone-marrow-derived mesenchymal stem cells (BMSCs) were transfected with adenovirus carrying triple point-mutations (amino acids 402, 564, and 803) in the HIF-1α coding sequence (CDS). The mutant HIF-1α can efficiently express functional proteins under normoxic conditions...
September 6, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28868793/chronic-steroid-response-pancytopenia-and-increased-bone-density-due-to-thromboxane-synthase-deficiency
#10
Richa Sharma, Elizabeth Sierra Potchanant, Jennifer E Schwartz, Grzegorz Nalepa
Diagnosis of bone marrow failure (BMF) disorders is challenging but essential for optimal patient management. Here, we report a young adult from nonconsanguineous parents with progressive pancytopenia since childhood, bone pain, increased bone density, and haphazard ossification replacing hematopoiesis within the bone marrow. Sequencing revealed two novel biallelic variants of unknown significance within the thromboxane A synthase gene, TBXAS1 (c.266T > C; c.989T > C), bioinformatically predicted to disrupt the protein...
September 4, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28865232/hyponatremia-bone-mineral-density-and-falls-in-the-elderly-results-from-ahap-study
#11
Seyed Reza Hosseini, Naghi Baghitabar, Ali Mirzapour, Farshid Oliaei, Hajighorban Nooreddini, Ali Bijani, Simin Mouodi
BACKGROUND: Hyponatremia (HN) can be associated with osteoporosis, falls and bone fractures in the elderly. Recent researches demonstrated different results about the correlation of HN with bone mineral density and bone fractures. METHODS: This analytic research came from the AHAP project in northern IRAN. All people aged 60 years and over were included in the study. Individuals with severe comorbidities and them who had concurrent conditions which could have impact on bone mineral densities (BMD) such as long-term use of steroids, calcium and/or vitamin D supplements, bisphosphonates, calcitonin, thiazides and hormonal medications were excluded...
August 28, 2017: Romanian Journal of Internal Medicine, Revue Roumaine de Médecine Interne
https://www.readbyqxmd.com/read/28826886/risk-factors-for-fractures-identified-in-the-algorithm-developed-in-5-year-follow-up-of-postmenopausal-women-from-rac-ost-pol-study
#12
P Adamczyk, A Werner, M Bach, J Żywiec, A Czekajło, W Grzeszczak, B Drozdzowska, W Pluskiewicz
The aim of the study was to establish factors with an impact on fracture risk and to develop an algorithm to predict osteoporotic fracture. A total of 978 postmenopausal women from the epidemiological, population-based RAC-OST-POL study with a mean age of 65.7 ± 7.3 years were enrolled. At baseline, bone mineral density at hip and clinical risk factors for fracture were collected. Afterward, each person was asked annually on fracture incidence in the 5-year follow-up. Finally, data for complete 5-year observation were gathered for the group of 802 patients...
August 17, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28746051/stanozolol-soaked-grafts-enhance-new-bone-formation-in-rat-calvarial-critical-size-defects
#13
G Ghiacci, G Graiani, A Cacchioli, C Galli, S Lumetti, F Ravanetti, L Elviri, E Manfredi, G M Macaluso, R Sala
Androgen hormones play a significant role in regulating bone morphogenesis and in maintaining bone homeostasis throughout life. This study aimed to investigate the local effects of the non-aromatizable androgen stanozolol (ST) on bone regeneration in rats. Bilateral critical-size defects were created in the parietal bone of 26 male Wistar rats: the defect on one side was filled with a deproteinized bovine bone scaffold (DBB) soaked in ST solution (test) and the contralateral with DBB alone (control). Samples were collected at one month and three months...
July 26, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28725977/the-effect-of-vitamin-d-and-calcium-supplementation-in-pediatric-steroid-sensitive-nephrotic-syndrome
#14
Sushmita Banerjee, Surupa Basu, Ananda Sen, Jayati Sengupta
BACKGROUND: Low serum levels of total 25-hydroxycholecalciferol (25(OH)D) occur in nephrotic syndrome (NS). We aimed to assess the effects of vitamin D3 and calcium supplementation on 25(OH)D levels, bone mineralization, and NS relapse rate in children with steroid-sensitive NS. METHODS: A randomized controlled trial (RCT) was performed in children with steroid-sensitive NS. The treatment group received vitamin D3 (60,000 IU orally, weekly for 4 weeks) and calcium supplements (500 to 1,000 mg/day for 3 months) after achieving NS remission...
July 19, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28715798/bone-mineral-density-in-women-living-with-complete-androgen-insensitivity-syndrome-and-intact-testes-or-removed-gonads
#15
Silvano Bertelloni, Maria C Meriggiola, Elenora Dati, Antonio Balsamo, Giampiero I Baroncelli
Complete androgen insensitivity syndrome (CAIS) is due to complete androgen resistance in androgen-dependent tissues. Since androgens are involved in growth, development, and mass maintenance of the skeleton, bone health may be a relevant clinical issue for improving quality of life of women living with CAIS. Bone mineral density (BMD) in women with CAIS and intact gonads has been reported in a normal range, although exceptions are known showing a low BMD mainly at the lumbar level. In women with CAIS and removed gonads, BMD is usually reduced at both the lumbar spine and femoral neck...
2017: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/28666972/non-destructive-nir-spectral-imaging-assessment-of-bone-water-comparison-to-mri-measurements
#16
Chamith S Rajapakse, Mugdha V Padalkar, Hee Jin Yang, Mikayel Ispiryan, Nancy Pleshko
Bone fracture risk increases with age, disease states, and with use of certain therapeutics, such as acid-suppressive drugs, steroids and high-dose bisphosphonates. Historically, investigations into factors that underlie bone fracture risk have focused on evaluation of bone mineral density (BMD). However, numerous studies have pointed to factors other than BMD that contribute to fragility, including changes in bone collagen and water. The goal of this study is to investigate the feasibility of using near infrared spectral imaging (NIRSI) to determine the spatial distribution and relative amount of water and organic components in whole cross-sections of bone, and to compare those results to those obtained using magnetic resonance imaging (MRI) methods...
October 2017: Bone
https://www.readbyqxmd.com/read/28658131/polymyalgia-rheumatica-and-giant-cell-arteritis-three-challenges-consequences-of-the-vasculitis-process-osteoporosis-and-malignancy-a-prospective-cohort-study-protocol
#17
Amir Emamifar, Søren Hess, Oke Gerke, Anne Pernille Hermann, Helle Laustrup, Per Syrak Hansen, Peter Thye-Rønn, Niels Marcussen, Frank Svendstrup, Rannveig Gildberg-Mortensen, Jacob Christian Bang, Ziba Ahangarani Farahani, Stavros Chrysidis, Pia Toftegaard, Rikke Asmussen Andreasen, Sebastian le Greves, Hanne Randi Andersen, Rudolf Nezlo Olsen, Inger Marie Jensen Hansen
INTRODUCTION: Polymyalgia rheumatica (PMR) and giant cell arteritis (GCA) are common inflammatory conditions. The diagnosis of PMR/GCA poses many challenges since there are no specific diagnostic tests. Recent literature emphasizes the ability of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) to assess global disease activity in inflammatory diseases. 18F-FDG PET/CT may lead to the diagnosis at an earlier stage than conventional imaging and may also assess response to therapy...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28649096/-aging-and-homeostasis-aging-of-bone
#18
Seijiro Mori
Quantitative as well as qualitative bone loss occurs with aging in both men and women, leading to alterations in skeletal microarchitecture and increased fracture incidence. Sex steroids, primarily estrogen and testosterone, have been shown to play a central role in the aging process of bone. The relationship between diminishing estrogen levels in women caused by ovarian failure and the development of postmenopausal osteoporosis is widely recognized. Unexpectedly, bone mineral density at various skeletal sites in men is also better correlated with circulating levels of bioavailable estrogen than with testosterone...
2017: Clinical Calcium
https://www.readbyqxmd.com/read/28643272/prevalence-and-risk-factors-for-low-bone-mineral-density-in-ulcerative-colitis
#19
Ram Pratap Singh Bundela, Prachis Ashdhir, Kumar Shwetanshu Narayan, Mukesh Jain, Rupesh Kumar Pokharna, Sandeep Nijhawan
BACKGROUND: Inflammatory bowel disease (IBD) has been associated with increased risk of osteopenia and osteoporosis. Several risk factors contribute to this; however, studies evaluating their association have conflicting results. METHODS: We conducted a cross-sectional study with prospective enrollment of adult ulcerative colitis patients attending the Gastroenterology Department of Sawai Man Singh Hospital, Jaipur Rajasthan between June 2015 and December 2015. Demographic data including age, gender, body mass index (BMI), disease duration, type of disease, prior steroid use and vitamin D levels were recorded and compared with bone mineral density (BMD) using dual-energy X-ray absorptiometry (DEXA)...
May 2017: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/28642854/measurement-uncertainty-in-spine-bone-mineral-density-by-dual-energy-x-ray-absorptiometry
#20
Ae-Ja Park, Jun-Il Yoo, Jee-Hye Choi, Kyun Shik Chae, Chang Geun Kim, Dal Sik Kim
BACKGROUND: The purpose of this study was to calculate the measurement uncertainty of the process of bone mineral density (BMD) analysis using dual energy X-ray absorptiometry with traceability. METHODS: Between March 2015 and October 2016, among healthy participants in their 20s and 30s, the study included those who had not taken calcium, vitamin D supplements and steroids and were without a history of osteoporosis, osteopenia and diseases related to osteoporosis...
May 2017: Journal of Bone Metabolism
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