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Bone mineral density

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https://www.readbyqxmd.com/read/28742508/clinical-characterization-of-a-novel-calcium-sensing-receptor-genetic-alteration-in-a-greek-patient-with-autosomal-dominant-hypocalcemia-type-1
#1
Anna Papadopoulou, Evangelia Gole, Katerina Melachroinou, Theoni Trangas, Evaggelia Bountouvi, Anastasios Papadimitriou
OBJECTIVE: Autosomal dominant hypocalcemia (ADH) is a rare familial or sporadic syndrome associated with activating mutations in the calcium sensing receptor (CaSR) gene. The aim of this study was to assess the functional significance of a novel CaSR mutation and, moreover, to present the clinical characteristics and the bone mineral density (BMD) progression from early childhood to late puberty in a patient with ADH. DESIGN: Genetic analysis of the CaSR gene was performed in a patient who presented in the neonatal period with hypocalcemic seizures and biochemical features of ADH...
April 2017: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28742289/tai-chi-exercise-for-the-quality-of-life-in-a-perimenopausal-women-organization-a-systematic-review
#2
Ying Wang, Weichao Shan, Qing Li, Na Yang, Weiying Shan
BACKGROUND: Improvement of the quality of life in perimenopausal women has recently become an important global health issue. Extensive research reports provide evidence of Tai Chi for the quality of life, but no systematic review has individually investigated Tai Chi as a main intervention on the quality of life in perimenopausal women. OBJECTIVE: To assess clinical evidence of Tai Chi for the quality of life in perimenopausal women. METHODS: Studies related to the effect of Tai Chi on the quality of life in perimenopausal women in the databases of China and abroad were searched...
August 2017: Worldviews on Evidence-based Nursing
https://www.readbyqxmd.com/read/28742266/p-coumaric-acid-a-dietary-polyphenol-ameliorates-inflammation-and-curtails-cartilage-and-bone-erosion-in-the-rheumatoid-arthritis-rat-model
#3
Manoj Kumar Neog, Samuel Joshua Pragasam, Moorthy Krishnan, Mahaboobkhan Rasool
This study was designed to explore the underlying mechanism of p-coumaric acid (CA), a dietary polyphenol in adjuvant-induced arthritis (AIA) rat model with reference to synovitis and osteoclastogenesis. Celecoxib (COX-2 selective inhibitor) (5 mg/kg b.wt) was used as a reference drug. CA remarkably suppressed the paw edema, body weight loss and inflammatory cytokine and chemokine levels (TNF-α, IL-1β, IL-6, and MCP-1) in serum and ankle joint of arthritic rats. Consistently, CA reduced the expression of osteoclastogenic factors (RANKL and TRAP), pro-inflammatory cytokines (TNF-α, IL-1β, IL-6, and IL-17), and inflammatory enzymes (iNOS and COX-2) in arthritic rats...
July 25, 2017: BioFactors
https://www.readbyqxmd.com/read/28741963/effects-of-parathyroidectomy-on-bone-metabolism-in-haemodialysis-patients-with-secondary-hyperparathyroidism
#4
Lijie Ma, Sumei Zhao, Zhongxin Li
OBJECTIVE: To evaluate the outcome of bone metabolism and bone mineral density (BMD) in haemodialysis patients after parathyroidectomy (PTX). METHODS: A total of 31 haemodialysis patients with secondary hyperparathyroidism (SHPT) were treated with PTX. BMD of lumbar spine (LS) and femoral neck (FN) was determined by dual energy X-ray absorptiometry. RESULTS: Parathyroidectomy ledds to significant decrease of serum β-crosslaps (β-CTX), osteocalcin (OC) and procollagen type I amino-terminal propeptide (PINP) while serum sclerostin (SOST) increased after surgery...
July 25, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28741036/network-based-subcellular-proteomics-in-monocyte-membrane-revealed-novel-candidate-genes-involved-in-osteoporosis
#5
Y Zeng, L Zhang, W Zhu, H He, H Sheng, Q Tian, F-Y Deng, L-S Zhang, H-G Hu, H-W Deng
In this study, label-free-based quantitative subcellular proteomics integrated with network analysis highlighted several candidate genes including P4HB, ITGB1, CD36, and ACTN1 that may be involved in osteoporosis. All of them are predicted as significant membrane proteins with high confidence and enriched in bone-related biological process. The results were further verified in transcriptomic and genomic levels. INTRODUCTION: Osteoporosis is a metabolic bone disease mainly characterized by low bone mineral density (BMD)...
July 24, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28740915/limited-short-term-effect-of-palliative-radiation-therapy-on-quantitative-computed-tomography-derived-bone-mineral-density-in-femora-with-metastases
#6
Florieke Eggermont, Loes C Derikx, Nico Verdonschot, Gerjon Hannink, Robert S J P Kaatee, Esther Tanck, Yvette M van der Linden
PURPOSE: The aim of this study was to determine the effect of single fraction (SF) and multiple fraction (MF) radiation therapy (RT) on bone mineral density (BMD) in patients with cancer and bone metastases in the proximal femur. We studied this effect in the radiation field and within metastatic lesions, and differentiated between lytic, blastic, and mixed lesions. METHODS AND MATERIALS: This prospective cohort study comprised 42 patients with painful bone metastases, including 47 irradiated femora with 52 metastatic lesions in the proximal femur...
January 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/28740533/histological-and-micro-computed-tomography-analysis-of-a-femoral-stress-fracture-associated-with-prolonged-bisphosphonate-use
#7
Matthijs Paul Somford, Leo J van Ruijven, Peter Kloen, Astrid D Bakker
BACKGROUND: The origin of atypical femoral fractures (AFF) associated with bisphosphonate therapy remains to be elucidated. In this study, a biopsy of an AFF site is analyzed to determine whether microdamage and/or morphological changes are present in the area of the AFF. MATERIAL AND METHODS: Cortical bone from an AFF region was obtained during a preventive stabilization in a patient with a symptomatic AFF. This bone was scanned using microCT (resolution=0.01 mm), stained with basic fuchsin and analyzed histologically...
January 2017: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/28740521/new-quantitative-ultrasound-techniques-for-bone-analysis-at-the-distal-radius-in-hip-fracture-cases-differences-between-femoral-neck-and-trochanteric-fractures
#8
Motoyuki Horii, Hiroyoshi Fujiwara, Ryo Sakai, Koshiro Sawada, Yasuo Mikami, Syogo Toyama, Etsuko Ozaki, Nagato Kuriyama, Masao Kurokawa, Toshikazu Kubo
BACKGROUND: Ample evidence on etiological and pathological differences between femoral neck and trochanteric fracture cases suggests the possibility of individualized treatment. There are many issues related to areal bone mineral density and other quantitative computed tomography parameters of the proximal femur. Although osteoporosis is a systemic problem, little has been reported regarding differences in bone structural parameters, including bone mineral density, between them in regions other than the proximal femur...
January 2017: Clinical Cases in Mineral and Bone Metabolism
https://www.readbyqxmd.com/read/28739641/matrine-prevents-bone-loss-in-ovariectomized-mice-by-inhibiting-rankl-induced-osteoclastogenesis
#9
Xiao Chen, Xin Zhi, Panpan Pan, Jin Cui, Liehu Cao, Weizong Weng, Qirong Zhou, Lin Wang, Xiao Zhai, Qingiie Zhao, Honggang Hu, Biaotong Huang, Jiacan Su
Osteoporosis is a metabolic bone disease characterized by decreased bone density and strength due to excessive loss of bone protein and mineral content. The imbalance between osteogenesis by osteoblasts and osteoclastogenesis by osteoclasts contributes to the pathogenesis of postmenopausal osteoporosis. Estrogen withdrawal leads to increased levels of proinflammatory cytokines. Overactivated osteoclasts by inflammation play a vital role in the imbalance. Matrine is an alkaloid found in plants from the Sophora genus with various pharmacological effects, including anti-inflammatory activity...
July 24, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28739546/in-situ-tissue-regeneration-through-sdf-1%C3%AE-driven-cell-recruitment-and-stiffness-mediated-bone-regeneration-in-a-critical-sized-segmental-femoral-defect
#10
Amaia Cipitria, Kathrin Boettcher, Sophia Schoenhals, Daniela S Garske, Katharina Schmidt-Bleek, Agnes Ellinghaus, Anke Dienelt, Anja Peters, Manav Mehta, Christopher M Madl, Nathaniel Huebsch, David J Mooney, Georg N Duda
In-situ tissue regeneration aims to utilize the body's endogenous healing capacity through the recruitment of host stem or progenitor cells to an injury site. Stromal cell-derived factor-1 α (SDF-1 α) is widely discussed as a potent chemoattractant. Here we use a cell-free biomaterial-based approach to (i) deliver SDF-1 α for the recruitment of endogenous bone marrow-derived stromal cells (BMSC) into a critical-sized segmental femoral defect in rats and to (ii) induce hydrogel stiffness-mediated osteogenic differentiation in-vivo...
July 21, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28739429/llex-paraguariensis-decreases-oxidative-stress-in-bone-and-mitigates-the-damage-in-rats-during-perimenopause
#11
Camila Scacco Pereira, Camila Tami Stringhetta-Garcia, Lilian da Silva Xavier, Keny Gonçalves Tirapeli, Ariana Aparecida Ferreira Pereira, GiselIi Mitsuy Kayahara, José Marcelo Tramarim, Marcelo Macedo Crivelini, Karina Stringhetta Padovani, Andréia Machado Leopoldino, Mário Jefferson Quirino Louzada, Adriane Belló-Klein, Susana Francisca Llesuy, Edilson Ervolino, Rita Cássia Menegati Dornelles, Antonio Hernandes Chaves-Neto, Ana Cláudia de Melo Stevanato Nakamune
During perimenopause, oxidative stress increases, which may result in disruption of bone turnover, and consequently in osteoporosis. The use of antioxidants may be an effective nutritional approach to reducing osteoporosis in this period of life. Mate tea (MT) (Ilex paraguariensis), a typical and inexpensive beverage consumed in the Brazilian south-east, Argentina and Uruguay, increases antioxidant defense. Our hypothesis was that MT would decrease oxidative stress and mitigate bone deterioration. To test this, we analyzed oxidative stress markers of bone turnover, and local and systemic markers of bone metabolism of rats during natural perimenopause...
July 21, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28739081/quantitative-ultrasound-qus-in-the-management-of-osteoporosis-and-assessment-of-fracture-risk
#12
Didier Hans, Sanford Baim
The use of quantitative ultrasound (QUS) for a variety of skeletal sites, associated with the absence of technology-specific guidelines, has created uncertainty with respect to the application of QUS results to the management of individual patients in clinical practice. However, when prospectively validated (this is not the case for all QUS devices and skeletal sites), QUS is a proven, low-cost, and readily accessible alternative to dual-energy X-ray absorptiometry (DXA) measurements of bone mineral density (BMD) for the assessment of fracture risk...
July 21, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28739045/filamin-b-the-next-hotspot-in-skeletal-research
#13
REVIEW
Qiming Xu, Nan Wu, Lijia Cui, Zhihong Wu, Guixing Qiu
Filamin B (FLNB) is a large dimeric actin-binding protein which crosslinks actin cytoskeleton filaments into a dynamic structure. Up to present, pathogenic mutations in FLNB are solely found to cause skeletal deformities, indicating the important role of FLNB in skeletal development. FLNB-related disorders are classified as spondylocarpotarsal synostosis (SCT), Larsen syndrome (LS), atelosteogenesis (AO), boomerang dysplasia (BD), and isolated congenital talipes equinovarus, presenting with scoliosis, short-limbed dwarfism, clubfoot, joint dislocation and other unique skeletal abnormalities...
July 6, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28739023/suture-bridge-transosseous-equivalent-repair-is-stronger-than-transosseous-tied-braided-tape
#14
Jérémie Ménard, Benjamin Léger-St-Jean, Frédéric Balg, Yvan Petit, Marc Beauchamp, Dominique M Rouleau
BACKGROUND: This study biomechanically compares two methods of supraspinatus repair: single row transosseous braided-tape (BT) and suture bridge transosseous equivalent (SBTE) with 2 medial anchors and 2 lateral anchors. The purpose is to test the hypothesis that BT provides superior or equal biomechanical strength compared to SBTE. METHODS: Nine pairs of frozen cadaveric shoulders were selected and both repair techniques were tested on each pair, using a biomechanical testing unit to measure cyclic loading and ultimate load to failure...
July 21, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28737291/nucleoside-reverse-transcriptase-inhibitor-reducing-strategies-in-hiv-treatment-assessing-the-evidence
#15
REVIEW
C Orkin, J M Llibre, S Gallien, A Antinori, Gmn Behrens, A Carr
Antiretroviral (ARV) therapy, comprising a backbone of two nucleos(t)ide reverse transcriptase inhibitors (NRTIs) plus another ARV, is the recognized standard of care (SOC), which has helped extend life expectancy in people living with HIV. In a quest to reduce lifelong drug exposure and minimize or avoid the toxicity of NRTIs, "NRTI-reducing" regimens have been investigated. This descriptive review assessing the results of NRTI-reducing strategies from the largest randomized trials focuses on virological efficacy, resistance, regimen safety (in terms of bone mineral density, renal function, lipids and central nervous system function) and simplicity...
July 24, 2017: HIV Medicine
https://www.readbyqxmd.com/read/28737140/bone-mineral-density-of-indian-children-and-adolescents-with-cystic-fibrosis
#16
Sumita Gupta, Aparna Mukherjee, Rajesh Khadgawat, Madhulika Kabra, Rakesh Lodha, Sushil K Kabra
OBJECTIVE: To document bone mineral density of children and adolescents with cystic fibrosis. DESIGN: Cross-sectional study. SETTING: Tertiary-care center of Northern India, July 2012 to August 2015. PARTICIPANTS: 52 children aged 6-18 years with cystic fibrosis and 62 healthy controls of similar age and sex. METHODS: Both patients and controls were stratified into two groups, as pre-pubertal and peri-/post-pubertal, and compared for whole body bone mineral density, measured using dual energy X-ray absorptiometry...
July 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28737050/efficacy-of-elagolix-in-the-treatment-of-endometriosis
#17
Alexandra Perricos, René Wenzl
Much research has gone into developing medications that can be used to alleviate endometriosis-associated symptoms. In addition to already established medications, a new GnRH antagonist, elagolix, is in development. The novelty of this drug compared to other GnRH antagonists, is its nonpeptide structure, allowing it to be administered orally. Areas covered: We analyzed several Phase I, II and III clinical trials that have evaluated the safety and efficacy of this new medication. Expert opinion: Since many medications have been put on the market and have gained popularity for the treatment of endometriosis-associated symptoms, the demonstration of equality or superiority of effect, tolerability, as well as patient compliance should be assessed when introducing a new drug...
July 24, 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28736691/prevalence-and-risk-factors-of-osteoporosis-among-jordanian-postmenopausal-women-attending-the-national-center-for-diabetes-endocrinology-and-genetics-in-jordan
#18
Dana Hyassat, Taghreed Alyan, Hashem Jaddou, Kamel M Ajlouni
To assess the prevalence of osteoporosis and osteopenia among Jordanian postmenopausal women attending the National Center for Diabetes, Endocrinology, and Genetics (NCDEG), and to determine the potential associated risk factors. A cross-sectional study was conducted at (NCDEG) in Amman, Jordan. A total of 1079 Jordanian postmenopausal women aged between 45 and 84 years were included in this study that was conducted during the period between April 2013 and December 2014. All patients underwent bone mineral density measurement through dual-energy X-ray absorptiometry (DEXA) scan...
2017: BioResearch Open Access
https://www.readbyqxmd.com/read/28736374/-low-cement-distribution-index-is-a-risk-factor-for-refracture-of-the-adjacent-segments-after-percutaneous-vertebroplasty
#19
Zhao-Zong Fu, Zhong-Xian Chen, Ying Qin, Zhi-Qiang Feng, Xiong-Jian Jiang, Qing-Hua Xie, Yi-Tao Liu
OBJECTIVE: To investigate the impact of cement distribution index on the occurrence of refracture in the adjacent segments after percutaneous vertebroplasty. METHODS: This retrospective analysis was conducted among 143 patients who received percutaneous vertebroplasty for osteoporotic vertebral compression fracture between April, 2011 and April, 2014. Of the 134 patients with complete follow-up data, 18 had adjacent segment fracture within 1 year following the surgeries (re-fracture group), and 116 patients without new fracture served as the control group...
July 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28736352/the-effect-of-biocomposite-screws-on-bone-regeneration-in-a-rat-osteoporosis-model
#20
Je Hoon Jeong, Eun-Sun Jin, Ji Yeon Kim, Bora Lee, JoongKee Min, Sang Ryong Jeon, Minsu Lee, Kyoung Hyo Choi
INTRODUCTION: The aim of this study was to evaluate the efficacy of biocomposite screws used in ovariectomy (OVX) induced osteoporotic rats. METHODS: Twenty-four female Wistar rats (250-300g, 12 weeks old) were divided into 4 groups; Sham group (control), OVX-induced osteoporosis group (OVX), OVX and biodegradable (PLGA (poly-lactic-co-glycolic acid) without ß-TCP (tricalcium phosphate) screw insertion group (OVX/BSR), OVX and biocomposite (PLGA with ß-TCP) screw insertion group (OVX/CSR)...
July 20, 2017: World Neurosurgery
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