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https://www.readbyqxmd.com/read/28070260/relationship-between-bone-density-and-biochemical-markers-of-bone-among-two-groups-taking-carbamazepine-and-sodium-valproate-for-epilepsy-in-comparison-with-healthy-individuals-in-yazd
#1
Abolghasem Rahimdel, Ali Dehghan, Mahboubeh Abolhassani Moghadam, Ali Mellat Ardekani
INTRODUCTION: Chronic antiepileptic therapy has been associated with metabolic bone diseases including osteomalacia and osteoporosis. The aim of this study was to determine frequency of changes in biochemical and bone mineral density (BMD) in adults receiving valproaic acid (VPA) & carbamazepine (CBZ). METHODS: In a cross sectional study evaluating adults (age 20-50 y) epileptic patients receiving valproic acid or carbamazepine for at least 2 years. This study was conducted from May 2014 to May 2015 in Shahid Sadoughi Hospital of Yazd University of Medical Science, Yazd, Iran...
November 2016: Electronic Physician
https://www.readbyqxmd.com/read/28025958/localization-of-ectopic-fibroblast-growth-factor-23-production-in-tumor-induced-osteomalacia-using-selective-venous-samplings
#2
Karyne Pelletier, Stéphan Troyanov, Jean-François Guité, Louis-Georges Sainte-Marie, David Roberge, Myriam Lessard
No abstract text is available yet for this article.
February 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28025475/-a-case-of-tenofovir-associated-fanconi-syndrome-in-patient-with-chronic-hepatitis-b
#3
Dongwoo Kim, Jongjin Lee, Dae Ha Kim, Kyuho Kang, Sang Jun Suh, Young Kul Jung, Hyung Joon Yim
Tenofovir disoproxil fumarate (TDF) is one of the most widely used treatment options for human immunodeficiency virus (HIV) and HBV infections. Despite its efficacy and safety, some cases of nephrotoxicity have been reported in the treatment of HIV patients. Even more recently, very few cases of Fanconi syndrome associated with tenofovir therapy in HBV monoinfection have been reported. Herein, we report a case of a 47-year-old male with an HBV monoinfection, who developed Fanconi syndrome and a secondary osteomalacia with multiple bone pain...
December 25, 2016: Korean Journal of Gastroenterology, Taehan Sohwagi Hakhoe Chi
https://www.readbyqxmd.com/read/28012328/oncogenic-hypophosphatemic-osteomalacia-from-the-first-signal-of-disease-to-the-first-signal-of-healthy
#4
Arthur Paredes Gatti, Luiza Tonello, João Alfredo Diedrich Neto, Uirá Fernandes Teixeira, Marcos Bertozzi Goldoni, Paulo Roberto Ott Fontes, José Artur Sampaio, Luiz Maraninchi Pereira Lima, Fábio Luiz Waechter
INTRODUCTION: The physical incapacitation of the oncogenic hypophosphatemic osteomalacia (OHO) can be catastrophic and can lead to deformities, metabolic and organic instability and death. The only positive outcome is through early diagnosis by the clinical suspicion. At this moment, medical center infrastructure is also a keypoint. PRESENTATION OF CASE: This case report is about a 60-year old woman with multiple fractures, gradual loss of strength and muscle mass and limiting deformities in two years of evolution until the diagnostic...
November 27, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28003569/assessment-criteria-for-vitamin-d-deficiency-insufficiency-in-japan-proposal-by-an-expert-panel-supported-by-research-program-of-intractable-diseases-ministry-of-health-labour-and-welfare-japan-the-japanese-society-for-bone-and-mineral-research-and-the-japan
#5
Ryo Okazaki, Keiichi Ozono, Seiji Fukumoto, Daisuke Inoue, Mika Yamauchi, Masanori Minagawa, Toshimi Michigami, Yasuhiro Takeuchi, Toshio Matsumoto, Toshitsugu Sugimoto
Vitamin D is indispensable for the maintenance of bone and mineral health. Inadequate vitamin D action increases the risk for various musculoskeletal/mineral events including fracture, fall, secondary hyperparathyroidism, diminished response to antiresorptives, rickets/osteomalacia, and hypocalcemia. Its most common cause in recent years is vitamin D deficiency/insufficiency, clinically defined by low serum 25-hydroxyvitamin D [25(OH)D] level. Guidelines for vitamin D insufficiency/deficiency defined by serum 25(OH)D concentrations have been published all over the world...
December 20, 2016: Endocrine Journal
https://www.readbyqxmd.com/read/27995499/idiopathic-hypophosphatemic-osteomalacia-recurrent-pseudofracture-of-the-proximal-femur-in-a-65-year-old-man
#6
Yi-Xuan Chen, You-Shui Gao
No abstract text is available yet for this article.
December 19, 2016: Endocrine
https://www.readbyqxmd.com/read/27994603/fibroblast-growth-factor-23-and-hypophosphatemia-a-case-of-hypophosphatemia-along-the-rickets-osteomalacia-spectrum
#7
REVIEW
George T Georges, O Nájera, Kurt Sowers, James R Sowers
Phosphorus is a key component of bone, and a deficiency results in poor mineralization along with other systemic symptoms of hypophosphatemia. Various causes of hypophosphatemia with renal wasting of phosphorus have been identified. These include the Fanconi syndrome, various genetic mutations of fibroblast growth factor 23 (FGF23) handling and the sodium/phosphate cotransporter, and those due to FGF23 secretion by mesenchymal tumors. Depending on the cause, vitamin D metabolism may also be impaired, which may amplify the deficiency in phosphorus and render treatment more challenging...
November 2016: Cardiorenal Medicine
https://www.readbyqxmd.com/read/27979577/vitamin-d-measurement-standardization-the-way-out-of-the-chaos
#8
REVIEW
N Binkley, B Dawson-Hughes, R Durazo-Arvizu, M Thamm, L Tian, J M Merkel, J C Jones, G D Carter, C T Sempos
Substantial variability is associated with laboratory measurement of serum total 25-hydroxyvitamin D [25(OH)D]. The resulting chaos impedes development of consensus 25(OH)D values to define stages of vitamin D status. As resolving this situation requires standardized measurement of 25(OH)D, the Vitamin D Standardization Program (VDSP) developed methodology to standardize 25(OH)D measurement to the gold standard reference measurement procedures of NIST, Ghent University and CDC. Importantly, VDSP developed protocols for standardizing 25(OH)D values from prior research based on availability of stored serum samples...
December 12, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27973461/bone-metabolism-in-non-alcoholic-fatty-liver-disease-vitamin-d-status-and-bone-mineral-density
#9
Ahad Eshraghian
Non alcoholic fatty liver disease (NAFLD) is the most common cause of chronic liver disease and liver enzymes abnormalities worldwide. NAFLD is reported to be associated with other extra-hepatic diseases including cardiovascular disease, diabetes mellites and thyroid gland abnormalities. Liver is also the source of many proteins involved in bone metabolism and is the regulator of several bone metabolism pathways. Although underlying pathogenesis is not clear, the association between NAFLD and low bone mineral density (BMD) in the forms of osteoporosis and osteopenia have been recently reported...
December 14, 2016: Minerva Endocrinologica
https://www.readbyqxmd.com/read/27929669/fgf23-is-not-required-to-regulate-fetal-phosphorus-metabolism-but-exerts-effects-within-12-hours-after-birth
#10
Yue Ma, Beth J Kirby, Nicholas A Fairbridge, Andrew C Karaplis, Beate Lanske, Christopher S Kovacs
Loss of fibroblast growth factor 23 (FGF23) causes hyperphosphatemia, extraskeletal calcifications, and early mortality; excess FGF23 causes hypophosphatemia with rickets or osteomalacia. However, FGF23 may not be important during fetal development. FGF23 deficiency (Fgf23 null) and FGF23 excess (Phex null) did not alter fetal phosphorus or skeletal parameters. In this study we further tested our hypothesis that FGF23 is not essential for fetal phosphorus regulation but becomes important after birth. Although co-receptor Klotho null adults have extremely high FGF23 concentrations, intact FGF23 was normal in Klotho null fetuses, as were fetal phosphorus and skeletal parameters, and placental and renal expression of FGF23 target genes...
December 8, 2016: Endocrinology
https://www.readbyqxmd.com/read/27921126/successful-ct-guided-cryoablation-of-phosphaturic-mesenchymal-tumor-in-the-soft-tissues-causing-tumor-induced-osteomalacia-a-case-report
#11
Sophie Cowan, Santiago A Lozano-Calderon, Raul N Uppot, Dipti Sajed, Ambrose J Huang
We report the case of a 25-year-old male patient with tumor-induced osteomalacia from a 1.8-cm phosphaturic mesenchymal tumor in the right distal thigh, who was treated at our institution with a single session of CT-guided cryoablation in December 2015, which resulted in biochemical and clinical resolution. We present the clinical history, physical examination, biochemistry, functional imaging, anatomic characterization, and follow-up for clinical outcome. The response to treatment was documented in terms of normalization of serum fibroblastic growth factor 23 (FGF23) and phosphorous levels, symptomatic improvement, as well as normalization of bone mineralization on femur radiographs 3 months after the procedure...
February 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/27900654/-slow-and-steady-wins-the-race-the-importance-of-perseverance-in-the-management-of-oncogenic-osteomalacia
#12
EDITORIAL
Maria Manara, Luigi Sinigaglia
No abstract text is available yet for this article.
November 29, 2016: Endocrine
https://www.readbyqxmd.com/read/27885708/oldest-medical-description-of-osteogenesis-imperfecta-17th-century-france
#13
Philippe Charlier, Antonio Perciaccante, Raffaella Bianucci
Osteogenesis imperfecta (OI), also known as Lobstein's syndrome or Vrolik's syndrome, comprises a heterogeneous group of rare genetic connective tissue disorders. It is characterized by increased bone fragility, low bone mass, and susceptibility to bone fractures of variable severity. Originally named "osteomalacia congenita," the condition was first medically described in a family by Ekman in 1778. Here, we report a 17th century medical account from France, which predates Eckman's doctoral dissertation by about a century...
November 7, 2016: Clinical Anatomy
https://www.readbyqxmd.com/read/27882481/assessment-criteria-for-vitamin-d-deficiency-insufficiency-in-japan-proposal-by-an-expert-panel-supported-by-the-research-program-of-intractable-diseases-ministry-of-health-labour-and-welfare-japan-the-japanese-society-for-bone-and-mineral-research-and-the
#14
Ryo Okazaki, Keiichi Ozono, Seiji Fukumoto, Daisuke Inoue, Mika Yamauchi, Masanori Minagawa, Toshimi Michigami, Yasuhiro Takeuchi, Toshio Matsumoto, Toshitsugu Sugimoto
Vitamin D is indispensable for the maintenance of bone and mineral health. Inadequate vitamin D action increases the risk for various musculoskeletal/mineral events including fracture, fall, secondary hyperparathyroidism, diminished response to antiresorptives, rickets/osteomalacia, and hypocalcemia. Its most common cause in recent years is vitamin D deficiency/insufficiency, clinically defined by a low serum 25-hydroxyvitamin D [25(OH)D] level. Guidelines for vitamin D insufficiency/deficiency defined by serum 25(OH)D concentrations have been published all over the world...
November 23, 2016: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/27867811/dramatic-mitigation-of-bone-pain-after-phosphorus-replacement-therapy-in-a-subject-with-fgf23-related-hypophosphatemic-osteomalacia
#15
Fuminori Tatsumi, Megumi Horiya, Akihito Tanabe, Momoyo Nishioka, Yoshiro Fushimi, Junpei Sanada, Yurie Hirata, Shintaro Irie, Tomoe Kinoshita, Shinji Kamei, Masashi Shimoda, Tomoatsu Mune, Kohei Kaku, Hideaki Kaneto
INTRODUCTION: Fibroblast growth factor 23 (FGF23) is secreted from bone and suppresses the absorption of phosphorus in renal proximal tubule and in intestinal tract. Therefore, the increase of serum FGF23 levels leads to hypophosphatemic situations. Tumor-induced osteomalacia is often induced by various tumors, but it is often difficult to identify the localization of tumor, because most of the FGF23-producing tumors are small and could be observed in any part of the body. CASE DESCRIPTION: Here we report a case of elderly female subject with FGF23-related hypophosphatemic osteomalacia who repeatedly experienced severe bone pain and fragility fracture in various parts of the body...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27862258/raine-syndrome-omim-259775-caused-by-fam20c-mutation-is-congenital-sclerosing-osteomalacia-with-cerebral-calcification-omim-259660
#16
Michael P Whyte, William H McAlister, Michael D Fallon, Mary Ella Pierpont, Vinieth N Bijanki, Shenghui Duan, Ghada A Otaify, William S Sly, Steven Mumm
In 1985, we briefly reported infant sisters with a unique, lethal, autosomal recessive disorder designated congenital sclerosing osteomalacia with cerebral calcification. In 1986, this condition was entered into Mendelian Inheritance In Man (MIM) as osteomalacia, sclerosing, with cerebral calcification (MIM 259660). However, no attestations followed. Instead, in 1989 Raine and colleagues published an affected neonate considering unprecedented the striking clinical and radiographic features. In 1992, "Raine syndrome" entered MIM formally as osteosclerotic bone dysplasia, lethal (MIM #259775)...
November 10, 2016: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/27854286/-english-disease-historical-notes-on-rickets-the-bone-lung-link-and-child-neglect-issues
#17
REVIEW
Mingyong Zhang, Fan Shen, Anna Petryk, Jingfeng Tang, Xingzhen Chen, Consolato Sergi
Nutritional or classical rickets (here labeled as "rickets") is a worldwide disease involving mostly infants and young children having inadequate sunlight exposure, often associated with a low dietary intake of Vitamin D. Rickets targets all layers of society independently of economic status with historical information spanning more than two millennia. Vitamin D is critical for the absorption of calcium and prevention of rickets in children as well as osteomalacia in adults. The initial and misleading paradigm of the 19th and 20th centuries that rickets may have been the consequence of infection has been, indeed, reversed following the identification of the Vitamin D molecule's important role in the function of the immune system...
November 15, 2016: Nutrients
https://www.readbyqxmd.com/read/27825568/osteoarticular-manifestations-of-celiac-disease-and-non-celiac-gluten-hypersensitivity
#18
Stéphanie Dos Santos, Frédéric Lioté
Celiac disease is a chronic inflammatory autoimmune enteropathy based disorder that is triggered by the ingestion of gluten in genetically susceptible individuals. The global prevalence of 1% to 2% represents only the tip of the iceberg. The diagnosis is confirmed by positive specific antibody, anti-transglutaminase or anti-endomysium, specific lesions of the small intestine and a response to strict gluten-free diet. The diagnosis is difficult and often delayed because the clinical variability is very large, ranging from digestive clinical presentation "classic" to "atypical" symptoms, often extra-intestinal, that are sometimes attributed to a concomitant disease or a complication...
November 4, 2016: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/27825289/vitamin-d-deficiency-in-traumatic-brain-injury-and-its-relationship-with-severity-of-injury-and-quality-of-life-a-prospective-observational-study
#19
Emma Toman, Jonathon R B Bishop, David J Davies, Zhangjie Su, Sherwin Criseno, Andrea Mason, Andrew A Toogood, Antonio Belli
This single-center prospective observational study aims to describe the prevalence of vitamin D deficiency (VDD) in the traumatic brain injury (TBI) population and identify any relationship between vitamin D and severity of head injury or quality of life. One hundred twenty-four TBI patients had serum vitamin D (25-OHD) levels measured at the local post-TBI endocrine screening clinic over 20 months. Quality of Life after Brain Injury questionnaires were completed by the patient concurrently. A multivariate regressional analysis was performed, controlling for age, season, ethnicity, time since injury, TBI severity, and gender...
December 20, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27820122/tumor-induced-osteomalacia-in-a-3-year-old-with-unresectable-central-giant-cell-lesions
#20
Stephanie S Crossen, Eduardo Zambrano, Beverley Newman, Jonathan A Bernstein, Anna H Messner, Laura K Bachrach, Clare J Twist
Tumor-induced osteomalacia (TIO) is a rare cause of hypophosphatemia involving overproduction of fibroblast growth factor 23. TIO has been described largely in adults with small mesenchymal tumors. We report a case of TIO in a child who presented with knee pain and radiographic findings concerning for rickets, and was found to have maxillomandibular giant cell lesions. The patient was treated with oral phosphorus and calcitriol, surgical debulking, and intralesional corticosteroids, which resulted in tumor regression and normalization of serum fibroblast growth factor 23 and phosphorus...
January 2017: Journal of Pediatric Hematology/oncology
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