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https://www.readbyqxmd.com/read/29456639/analysis-of-effect-of-1%C3%AE-hydroxyvitamin-d3-on-benign-paroxysmal-positional-vertigo-and-risk-factors
#1
Xiang Gu, Feilin Dong, Jianhua Gu
The purpose of this study was to investigate the curative effect of 1α-hydroxyvitamin D3 on the benign paroxysmal positional vertigo (BPPV). Fifty BPPV patients diagnosed in the ENT Department of Anzhen Hospital from October 2015 to December 2016 were randomly selected as the treatment group, and treated with 0.25 µg 1α-hydroxyvitamin D3 once per day, in addition to the routine diagnosis and treatment. Moreover, 50 BPPV patients in the same period were selected as the control group, and received the routine diagnosis and treatment...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29452565/serum-vitamin-c-levels-modulate-the-lifespan-and-endoplasmic-reticulum-stress-response-pathways-in-mice-synthesizing-a-nonfunctional-mutant-wrn-protein
#2
Lucie Aumailley, Marie Julie Dubois, Tracy A Brennan, Chantal Garand, Eric R Paquet, Robert J Pignolo, André Marette, Michel Lebel
Werner syndrome (WS) is a premature aging disorder caused by mutations in a RecQ-family DNA helicase (WRN). Mice lacking part of the helicase domain of the WRN ortholog exhibit several phenotypic features of WS. In this study, we generated a Wrn mutant line that, like humans, relies entirely on dietary sources of vitamin C (ascorbate) to survive, by crossing them to mice that lack the gulonolactone oxidase enzyme required for ascorbate synthesis. In the presence of 0.01% ascorbate (w/v) in drinking water, double-mutant mice exhibited a severe reduction in lifespan, small size, sterility, osteopenia, and metabolic profiles different from wild-type (WT) mice...
February 8, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29447647/association-of-pemphigus-and-systemic-corticosteroid-use-with-comorbid-health-disorders-a-case-control-study
#3
Derek Y Hsu, Joaquin Brieva, Beatrice Nardone, Dennis West, Jonathan I Silverberg
BACKGROUND: Pemphigus is a group of debilitating autoimmune blistering disorders associated with painful blisters of the skin and/or mucous membranes. Identification and management of the comorbiditiesof pemphigus is critically important to minimize morbidity and decrease mortality. OBJECTIVE: To identify the comorbid health conditions of pemphigus vulgaris. METHODS: This was a case-control study of 130 cases of pemphigus verified by a clinical and laboratory diagnosis and 390 age and sex-matched controls with complete follow-up at a large metropolitanquaternary care medical center...
December 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29444358/a-complex-role-for-lipocalin-2-in-bone-metabolism-global-ablation-in-mice-induces-osteopenia-caused-by-an-altered-energy-metabolism
#4
Mattia Capulli, Marco Ponzetti, Antonio Maurizi, Sara Gemini-Piperni, Thorsten Berger, Tak Wah Mak, Anna Teti, Nadia Rucci
Lipocalin 2 (Lcn2) is an adipokine that carries out a variety of functions in diverse organs. We investigated the bone phenotype and the energy metabolism of Lcn2 globally deleted mice (Lcn2 -/- ) at different ages. Lcn2 -/- mice were largely osteopenic, exhibiting lower trabecular bone volume, lesser trabecular number and higher trabecular separation when compared to wild type (WT) mice. Lcn2 -/- mice showed a lower osteoblast number and surface over bone surface, and subsequently a significantly lower bone formation rate, while osteoclast variables were unremarkable...
February 14, 2018: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/29439698/a-retrospective-analysis-of-bone-mineral-status-in-patients-requiring-spinal-surgery
#5
Tobias Schmidt, Katharina Ebert, Tim Rolvien, Nicola Oehler, Jens Lohmann, Luca Papavero, Ralph Kothe, Michael Amling, Florian Barvencik, Haider Mussawy
BACKGROUND: Impaired bone quality is associated with poor outcome of spinal surgery. The aim of the study was to assess the bone mineral status of patients scheduled to undergo spinal surgery and to report frequencies of bone mineral disorders. METHODS: We retrospectively analyzed the bone mineral status of 144 patients requiring spinal surgery including bone mineral density by dual-energy X-ray absorptiometry (DXA) as well as laboratory data with serum levels of 25-hydroxyvitamin D (25-OH-D), parathyroid hormone, calcium, bone specific alkaline phosphate, osteocalcin, and gastrin...
February 13, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29435407/bmp3-expression-by-osteoblast-lineage-cells-is-regulated-by-canonical-wnt-signaling
#6
Shoichiro Kokabu, Vicki Rosen
Bone morphogenetic protein (BMP) and canonical Wnt (cWnt) signaling factors are both known to regulate bone mass, fracture risk, fracture repair, and osteoblastogenesis. BMP3 is the most abundant BMP and negatively regulates osteoblastogenesis and bone mass. Thus, identifying the mechanism by which BMP3 acts to depress bone formation may allow for the development of new therapeutics useful in the treatment for osteopenia and osteoporosis. Here, we report that cWnt signaling stimulates BMP3 expression in osteoblast (OB) lineage cells...
February 2018: FEBS Open Bio
https://www.readbyqxmd.com/read/29430497/evaluation-of-bone-mineral-density-in-perimenopausal-period
#7
Zhaleh Shariati-Sarabi, Hamid Etemad Rezaie, Nasrin Milani, Farnaz Etemad Rezaie, Ali Etemad Rezaie
Background: The menopausal transition called perimenopause, happens after the reproductive years, and is specified with irregular menstrual cycles, perimenopause symptoms and hormonal changes. Women going through peri menopausal period are vulnerable to bone loss . Osteoporosis is one of the most common debilitating metabolic bone diseases, especially in the women almost around 50 years. This study was intended to evaluate the prevalence of osteopenia/osteoporosis amongst asymptomatic individuals during the menopause transition period...
January 2018: Archives of Bone and Joint Surgery
https://www.readbyqxmd.com/read/29429184/-study-on-bone-metabolism-in-postmenopausal-women-with-idiopathic-benign-paroxysmal-positional-vertigo
#8
C Y Gu, W W Han, Y Q Wu, Z Y Fan, C J Chen, H M Chen
Objective: To analyze the bone mineral density and serum osteocalcin levels in postmenopausal women with idiopathic benign paroxysmal positional vertigo. Methods: A total of 64 postmenopausal women with idiopathic BPPV were selected as the study group, and 98 postmenopausal healthy women were selected as the control group. Bone mineral density and serum osteocalcin levels were analyzed and compared between the groups.χ(2) test was used for numeration data and t test was used for measurement data. Results: The prevalence of osteoporosis or osteopenia in BPPV group 67...
February 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/29424771/t-cell-receptor-activator-of-nuclear-factor-%C3%AE%C2%BAb-ligand-osteoprotegerin-imbalance-is-associated-with-hiv-induced-bone-loss-in-patients-with-higher-cd4-t-cell-counts
#9
Kehmia Titanji, Aswani Vunnava, Antonina Foster, Anandi N Sheth, Jeffrey L Lennox, Andrea Knezevic, Neeta Shenvi, Kirk A Easley, Ighovwerha Ofotokun, M Neale Weitzmann
OBJECTIVE: Higher incidence of osteopenia and osteoporosis underlie increased rates of fragility fracture in HIV infection. B cells are a major source of osteoprotegerin (OPG), an inhibitor of the key osteoclastogenic cytokine receptor activator of nuclear factor-κB ligand (RANKL). We previously showed that higher B-cell RANKL/OPG ratio contributes to HIV-induced bone loss. T-cell OPG production in humans, however, remains undefined and the contribution of T-cell OPG and RANKL to HIV-induced bone loss has not been explored...
February 8, 2018: AIDS
https://www.readbyqxmd.com/read/29422346/bone-loss-in-women-with-brca1-and-brca2-mutations
#10
C Bethan Powell, Amy Alabaster, Nicole Stoller, Mary Anne Armstrong, Chelsea Salyer, Isabella Hamilton, Tina Raine-Bennett
OBJECTIVE: Estimate the prevalence and identify risk factors for bone loss in women with BRCA mutations. METHODS: Women, age 40 and older, with BRCA mutations identified from the Breast Cancer Surveillance database at Kaiser Permanente Northern California were invited to participate and undergo a dual-energy x-ray absorptiometry scan to assess for bone loss (osteopenia or osteoporosis). Multivariable logistic regression analysis was performed to assess clinical factors associated with bone loss...
February 5, 2018: Gynecologic Oncology
https://www.readbyqxmd.com/read/29417027/back-pain-an-unusual-manifestation-of-acute-lymphoblastic-leukemia-a-case-report-and-review-of-literature
#11
Magatha Sneha Latha, Ram Prakash Thirugnanasambandam, Padmasani Venkatraman, Julius Xavier Scott
Acute lymphoblastic leukemia (ALL) presented with bone pain and leukopenia is a well-recognized complex. Bone and joint pain are seen as presenting symptoms in 25% of patients with acute leukemia, but generalized osteopenia and vertebral complications are less common. Back pain due to vertebral changes as an early feature has been infrequently reported. We report a case of a 9-year-old female child who presented with back pain for 3 weeks. Blood counts and peripheral smear were normal. X-ray of the spine showed wedge-shaped deformity in L3-L5 vertebrae...
July 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29417015/prevalence-of-osteoporosis-and-osteopenia-in-stable-patients-of-chronic-obstructive-pulmonary-disease-in-sub-himalayan-region-of-himachal-pradesh-india
#12
Nishant Nayyar, R G Sood, Malay Sarkar, Ashwani Tomar, Vijay Thakur, Rohit Bhoil
Background: Chronic obstructive pulmonary disease (COPD) is a lifestyle-related chronic inflammatory pulmonary disease and a major cause of morbidity and mortality globally. Osteoporosis and osteopenia are common observations in COPD and degree of the loss of bone mineral density (BMD) has been found to be proportionate to the severity of the disease. Objectives: Our objective was to study the prevalence of osteoporosis and osteopenia in stable COPD patients in Indian Sub-Himalayan population...
July 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29415986/osteoblast-targeted-delivery-of-mir-33-5p-attenuates-osteopenia-development-induced-by-mechanical-unloading-in-mice
#13
Han Wang, Zebing Hu, Fei Shi, Jingjing Dong, Lei Dang, Yixuan Wang, Zhongyang Sun, Hua Zhou, Shu Zhang, Xinsheng Cao, Ge Zhang
A growing body of evidence has revealed that microRNAs (miRNAs) play crucial roles in regulating osteoblasts and bone metabolism. However, the effects of miRNAs in osteoblast mechanotransduction remain to be defined. In this study, we investigated the regulatory effect of miR-33-5p in osteoblasts and tested its anti-osteopenia effect when delivered by an osteoblast-targeting delivery system in vivo. First, we demonstrated that miR-33-5p could promote the activity and mineralization of osteoblasts without influencing their proliferation in vitro...
February 7, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29415886/osteoblastic-heparan-sulfate-regulates-osteoprotegerin-function-and-bone-mass
#14
Satoshi Nozawa, Toshihiro Inubushi, Fumitoshi Irie, Iori Takigami, Kazu Matsumoto, Katsuji Shimizu, Haruhiko Akiyama, Yu Yamaguchi
Bone remodeling is a highly coordinated process involving bone formation and resorption, and imbalance of this process results in osteoporosis. It has long been recognized that long-term heparin therapy often causes osteoporosis, suggesting that heparan sulfate (HS), the physiological counterpart of heparin, is somehow involved in bone mass regulation. The role of endogenous HS in adult bone, however, remains unclear. To determine the role of HS in bone homeostasis, we conditionally ablated Ext1, which encodes an essential glycosyltransferase for HS biosynthesis, in osteoblasts...
February 8, 2018: JCI Insight
https://www.readbyqxmd.com/read/29414598/combination-of-hindlimb-suspension-and-immobilization-by-casting-exaggerates-sarcopenia-by-stimulating-autophagy-but-does-not-worsen-osteopenia
#15
Toni L Speacht, Andrew R Krause, Jennifer L Steiner, Charles H Lang, Henry J Donahue
Astronauts in space experience a unique environment that causes the concomitant loss of bone and muscle. However, the interaction between these tissues and how osteopenia and sarcopenia affect each other is unclear. We explored this relationship by exaggerating unloading-induced muscle loss using a unilateral casting model in conjunction with hindlimb suspension (HLS). Five-month-old, male C57Bl/6J mice subjected to HLS for 2 weeks displayed a significant decrease in gastrocnemius and quadriceps weight (-9-10%), with a two-fold greater decrease in muscle mass observed in the HLS + casted limb...
February 2, 2018: Bone
https://www.readbyqxmd.com/read/29413740/bone-mineral-density-after-spinal-fusion-surgery-for-adolescent-idiopathic-scoliosis-at-a-minimum-20-year-follow-up
#16
Masayuki Ohashi, Toru Hirano, Kei Watanabe, Keiichi Katsumi, Hirokazu Shoji, Tatsuki Mizouchi, Naoto Endo
STUDY DESIGN: A retrospective, long-term follow-up study. OBJECTIVE: We investigated the incidence and risk factors for osteopenia at a minimum of 20 years after spinal instrumented fusion for adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Surgically treated AIS patients may be likely to have osteopenia in adulthood because the association between AIS and osteopenia has been well documented. However, the long-term results of AIS surgery on BMD have not been evaluated...
March 2018: Spine Deformity
https://www.readbyqxmd.com/read/29398327/differing-clinical-phenotype-for-higher-alanine-aminotransferase-alt-compared-with-high-risk-nafld-fibrosis-score-in-type-2-diabetes-mellitus
#17
Kathryn H Williams, Kharis Burns, Stephen M Twigg
AIMS: The impact of non-alcoholic fatty liver disease (NAFLD) presence and severity on the diabetes phenotype remains unclear. Our study aimed to explore and contrast the phenotypes associated with higher ALT and high-risk NAFLD fibrosis score (NFS) in type 2 diabetes. METHODS: 324 patients with type 2 diabetes mellitus who were seen at a diabetes centre for a complications assessment with data for NFS were available for study. Data regarding co-morbidities and pathology were obtained at assessment and by file audit...
December 29, 2017: Journal of Diabetes and its Complications
https://www.readbyqxmd.com/read/29394455/retinol-binding-protein-4-is-positively-associated-with-bone-mineral-density-in-osteopenia-and-osteoporosis-type-2-diabetic-patients
#18
Jin Zhou, Nana Huang, Yu Cheng, Liang Li, Wenzhou Jiang, Wei Wang, Daping Wang, Yuxiao Tang, Shulin Chen, Ying Sun
OBJECTIVE: This study intends to study the association between serum retinol-binding protein 4 (RBP4), bone mineral density (BMD), and other bone metabolic related parameters in type 2 diabetic patients older than 50 years, with or without osteopenia or osteoporosis. METHODS: Patients (n = 274 cases) with type 2 diabetes, hospitalized in the Endocrinology Department of Yantai Yuhuangding Hospital from December 2015 to March 2017, were enrolled in the study. The bone mineral density (BMD) was recorded by the dual-energy X-ray absorptiometer, and patients were divided into normal bone mineral density group (148 cases), osteopenia (93 cases), and osteoporosis group (33 cases) group...
February 2, 2018: Clinical Endocrinology
https://www.readbyqxmd.com/read/29386724/osteoporosis-among-household-women-a-growing-but-neglected-phenomenon
#19
R N Hiremath, A K Yadav, Sandhya Ghodke, Jyoti Yadav, Sumit Latwal, Atul Kotwal
Background: Osteoporosis is associated with variable morbidity and socio-economic burden and referred as a "silent epidemic" with increasing risk among Indian women. The present study was conducted to find prevalence of osteoporosis. Methods: A descriptive cross-sectional study was conducted in Ranchi city with household women as participants. Data was collected by means of pre-tested structured questionnaire in Hindi language and bone status was screened utilizing calcaneal quantitative ultrasound as a diagnostic tool to estimate bone mineral density from 223 participants and statistical analysis was performed with SPSS software...
January 2018: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/29384951/cole-carpenter-syndrome-1-with-a-de-novo-heterozygous-deletion-in-the-p4hb-gene-in-a-chinese-girl-a-case-report
#20
Lixue Ouyang, Fan Yang
RATIONALE: Cole-Carpenter syndrome-1 (CLCRP1) is an independent osteogenesis imperfect (OI)-like disorder that manifests as bone fragility, craniosynostosis, ocular proptosis, hydrocephalus, and distinctive facial features. Only 2 types of mutation sites in the P4HB and CRTAP genes have been reported. PATIENT CONCERNS: A 14-month-old Chinese girl presented with prominent ocular proptosis, frontal bossing, craniosynostosis, plump anterior fontanel, growth retardation, osteopenia, and distinctive facial features that were strikingly similar to those in the original 2 cases...
December 2017: Medicine (Baltimore)
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