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Osteopenia

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https://www.readbyqxmd.com/read/28346829/polymorphisms-in-the-glucocorticoid-receptor-gene-and-associations-with-glucocorticoid-induced-avascular-osteonecrosis-of-the-femoral-head
#1
Zhanqin Zhao, Yun Xue, Dun Hong, Hongjun Zhang, Zhigang Hu, Shunwu Fan, Haixiao Chen
AIMS: Individual sensitivity to glucocorticoid (GC) therapy might play a pivotal role in the development of GC-induced avascular necrosis of the femoral head (GANFH). In a growing number of studies, common polymorphisms of the glucocorticoid receptor gene (nuclear receptor subfamily 3 group C member 1 [NR3C1]) have been associated with variability in the individual sensitivity to GCs. However, whether the NR3C1 gene polymorphisms actually influence the susceptibility of GANFH remains unknown...
March 27, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28343085/guava-fruit-extract-and-its-triterpene-constituents-have-osteoanabolic-effect-stimulation-of-osteoblast-differentiation-by-activation-of-mitochondrial-respiration-via-the-wnt-%C3%AE-catenin-signaling
#2
Konica Porwal, Subhashis Pal, Kapil Dev, Shyamsundar Pal China, Yogesh Kumar, Chandan Singh, Tarun Barbhuyan, Neeraj Sinha, Sabyasachi Sanyal, Arun Kumar Trivedi, Rakesh Maurya, Naibedya Chattopadhyay
The aim of this study was to evaluate the skeletal effect of guava triterpene-enriched extract (GE) in rats and identify osteogenic compounds thereof, and determine their modes of action. In growing female rats, GE at 250 mg/kg dose increased parameters of peak bone mass including femur length, bone mineral density (BMD) and biomechanical strength, suggesting that GE promoted modeling-directed bone growth. GE also stimulated bone regeneration at the site of bone injury. In adult osteopenic rats (osteopenia induced by ovariectomy, OVX) GE completely restored the lost bones at both axial and appendicular sites, suggesting a strong osteoanabolic effect...
March 8, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/28338426/the-role-of-exercise-in-prevention-and-treatment-of-osteopenia-of-prematurity-an-update
#3
Alon Eliakim, Ita Litmanovitz, Dan Nemet
Premature infants have an increased risk of osteopenia due to limited bone mass accretion in utero and a greater need for bone nutrients. Until recently, most of efforts to prevent osteopenia of prematurity focused on nutritional changes. Recent studies indicate that passive range of motion exercise of the extremities may lead to beneficial effects on body weight, increased bone mineralization, increased bone formation markers and leptin levels, and attenuation of the natural post-natal decline in bone SOS...
March 24, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28337901/cardiopathy-and-osteoporosis-the-epidemiology-in-a-region-of-italy
#4
A Notarnicola, G Maccagnano, L Moretti, S Tafuri, B Moretti
Cardiopathies and osteoporosis are inter-related due to pathogenetic, hormonal, genetic features as well as an increased risk of fragility. An important feature is attributed to the process of atherosclerosis, which is responsible for an osteopenia effect and degeneration of vascular walls. To date the study populations have been limited. To verify the incidence of cardio-vascular disease in a larger osteoporotic population, we designed a retrospective clinical study analyzing the “Hospital Discharge Data” (HDD) in Apulia between 2006 and 2010...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28326338/predictors-of-teriparatide-treatment-failure-in-patients-with-low-bone-mass
#5
Tarig Elraiyah, Adil H Ahmed, Zhen Wang, Joshua N Farr, Mohammad H Murad, Matthew T Drake
INTRODUCTION: While teriparatide is the only skeletal anabolic agent approved in the United States, treatment failure is a major concern which complicates its clinical utility. We sought to identify factors that predict response failure in patients with low bone mass. METHOD: We performed a retrospective study of adults with osteopenia or osteoporosis (T-scores < - 1.0 and - 2.5 SD below normal, respectively, at the total hip or lumbar spine) treated with teriparatide at the Mayo Clinic (Rochester, Minnesota) between November 2002-December 2012...
June 2016: Bone Reports
https://www.readbyqxmd.com/read/28326223/clinical-cellular-microscopic-and-ultrastructural-studies-of-a-case-of-fibrogenesis-imperfecta-ossium
#6
Melissa L Barron, Mark S Rybchyn, Sutharshani Ramesh, Rebecca S Mason, S Fiona Bonar, Paul Stalley, Sundeep Khosla, Bernie Hudson, Christopher Arthur, Edward Kim, Roderick J Clifton-Bligh, Phillip B Clifton-Bligh
Fibrogenesis imperfecta ossium is a rare disorder of bone usually characterized by marked osteopenia and associated with variable osteoporosis and osteosclerosis, changing over time. Histological examination shows that newly formed collagen is abnormal, lacking birefringence when examined by polarized light. The case presented demonstrates these features and, in addition, a previously undocumented finding of a persistent marked reduction of the serum C3 and C4. Osteoblasts established in culture from a bone biopsy showed abnormal morphology on electron microscopy and increased proliferation when cultured with benzoylbenzoyl-ATP and 1,25-dihydroxyvitamin D, contrasting with findings in normal osteoblasts in culture...
2017: Bone Research
https://www.readbyqxmd.com/read/28325144/therapeutic-potential-and-outlook-of-alternative-medicine-for-osteoporosis
#7
Tao Wang, Qian Liu, William Tjhioe, Jinmin Zhao, Aiping Lu, Ge Zhang, Renxiang Tan, Mengyu Zhou, Jiake Xu, Haotian Feng
Osteoporosis, a bone disease resulting in loss of bone density and microstructure quality, is often associated with fragility fractures, and the latter imposes a great burden on the patient and society. Although there are several different treatments available for osteoporosis such as hormone replacement therapy, bisphosphonates, Denosumab, and parathyroid hormone some concern has been raised regarding the inherent side effects of their long term use. It would be of great relevance to search for alternative natural compounds, which could complementarily overcome the limitations of the currently available therapy...
March 21, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28323963/an-antibody-to-notch2-reverses-the-osteopenic-phenotype-of-hajdu-cheney-mutant-male-mice
#8
Ernesto Canalis, Archana Sanjay, Jungeun Yu, Stefano Zanotti
Notch receptors play a central role in skeletal development and bone remodeling. Hajdu Cheney Syndrome (HCS), a disease characterized by osteoporosis and fractures, is associated with gain-of-NOTCH2 function mutations. To study HCS, we created a mouse model harboring a point 6955C>T mutation in the Notch2 locus upstream of the proline (P), glutamic acid (E), serine (S) and threonine (T) domain leading to a Q2319X change at the amino acid level. Notch2Q2319X heterozygous mutants exhibited cancellous and cortical bone osteopenia...
January 31, 2017: Endocrinology
https://www.readbyqxmd.com/read/28321531/bone-quality-in-beta-thalassemia-intermedia-relationships-with-bone-quantity-and-endocrine-and-hematologic-variables
#9
Marina Baldini, A Marcon, F M Ulivieri, S Seghezzi, R Cassin, C Messina, M D Cappellini, G Graziadei
We report the first evaluation of bone quality in 70 thalassemia intermedia (TI) patients (37 males, 33 females, age 41 ± 12 years). Thirty-three patients (47%) had been transfused, 34 (49%) had been splenectomized, 39 (56%) were on iron chelation therapy, and 11 (16%) were on hydroxyurea. Mean hemoglobin was 9.2 ± 1.5 g/dl, median ferritin 537 ng/dl (range 14-4893), and mean liver iron concentration 7.6 ± 6.4 mg Fe/g dw. Fifteen patients (21%) had endocrinopathies, and 29 (41%) had vitamin D deficiency...
March 20, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28321341/singleton-merten-syndrome-a-rare-cause-of-early-onset-aortic-stenosis
#10
Harshavardhan Ghadiam, Sudhir Mungee
Singleton Merten syndrome (SMS) is a rare autosomal dominant genetic disorder with variable expression. Its characteristic features include abnormal aortic calcification, abnormal ossification of extremities, and dental anomalies. We present a young man with dyspnea who was noted to have aortic stenosis in the background of glaucoma, psoriasis, dental anomalies, hand and foot deformities, Achilles tendinitis, osteopenia, and nephrolithiasis. The conglomeration of features led to the diagnosis of SMS. His mother had a very similar phenotype...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28319323/further-evidence-for-specific-ifih1-mutation-as-a-cause-of-singleton-merten-syndrome-with-phenotypic-heterogeneity
#11
Maria Pettersson, Birgitta Bergendal, Johanna Norderyd, Daniel Nilsson, Britt-Marie Anderlid, Ann Nordgren, Anna Lindstrand
Singleton-Merten syndrome (MIM 182250) is an autosomal dominant inherited disorder characterized by early onset periodontitis, root resorption, osteopenia, osteoporosis, and aortic valve or thoracic aorta calcification. The disorder can have significant intrafamilial phenotypic variability. Here, we present a mother and daughter with Singleton-Merten syndrome harboring a previously described pathogenic missense mutation, c.2465G>A p.(Arg822Gln), in IFIH1 (interferon induced with helicase C domain 1), encoding MDA5 (Melanoma Differentiation-Associated protein 5)...
March 20, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28316857/progressive-pseudorheumatoid-dysplasia-or-jia
#12
Geetha Wickrematilake
Progressive pseudorheumatoid dysplasia (PPD) or spondyloepiphyseal dysplasia tarda with progressive arthropathy (SEDT-PA) is a rare arthropathy of childhood involving the axial skeleton as well as small peripheral joints. A 10-year-old boy was referred by a general practitioner with pain and deformity in the fingers of hands and limping gait. There was no joint synovitis although the finger joints were bulky on examination with mild flexion deformity. Patient had exaggerated kyphosis and lumbar lordosis with pigeon chest and restricted hip joint movements...
2017: Case Reports in Rheumatology
https://www.readbyqxmd.com/read/28314685/association-of-psoriasis-and-psoriatic-arthritis-with-osteoporosis-and-pathological-fractures
#13
Parul Kathuria, Kenneth B Gordon, Jonathan I Silverberg
BACKGROUND: Previous studies examining the relationship between psoriasis (Pso), osteoporosis, and pathological fractures found conflicting results. OBJECTIVE: To determine whether Pso and psoriatic arthritis (PsA) are associated with osteoporosis and fractures in US adults. METHODS: Cross-sectional study of 198,102,435 children and adults, including 183,725 with Pso and 28,765 with PsA from the 2006-2012 National Emergency Department Sample, including 20% of the emergency care visits throughout the United States...
March 14, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28303983/frequency-of-osteopenia-and-associated-risk-factors-among-young-female-students
#14
Rabail Rani Soomro, Syed Imran Ahmed, Muhammad Khan
OBJECTIVE: To find out the frequency of osteopenia and associated risk factors among young female students. METHODS: This observational, cross-sectional study was conducted at the Dow University of Health Sciences, Karachi, from August 2011 to January 2012, and comprised young female students. Convenient sampling method was used. Age, residence, sun exposure, menstrual status, level of physical activity, exercise, vitamin D, calcium intake were variables of interest...
March 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28303402/association-between-metabolic-syndrome-and-bone-mineral-density-in-a-taiwanese-elderly-population
#15
Song-Seng Loke, Hsueh-Wen Chang, Wen-Cheng Li
Previous studies have demonstrated uncertainty regarding the effect of metabolic syndrome (MetS) on bone. In the present work, we investigated the association between MetS, its components, and decreased bone mineral density (BMD) in a cross-sectional study of patients who underwent BMD measurement by dual-energy X-ray absorptiometry during a health examination. Decreased BMD was defined as either osteopenia or osteoporosis. MetS components and body mass index (BMI) were compared between individuals with normal and decreased BMD, and simple and multivariate logistic regression analyses were used to evaluate the association between the variables and decreased BMD in women and men...
March 16, 2017: Journal of Bone and Mineral Metabolism
https://www.readbyqxmd.com/read/28302355/effects-of-short-term-calcium-supplementation-in-children-and-adolescents-with-phenylketonuria
#16
Nancy Y Y Tanaka, Marlene F Turcato, Carolina F Nicoletti, Carla B Nonino, Luciana D Martins, Odilon Iannetta, Carlos Guerreiro, Gisele G Santos, Júlio S Marchini
Reduction of bone mineral density and the risk of osteopenia have been reported to occur in phenylketonuria (PKU) patients. This study aimed to evaluate the short-term effects of calcium supplementation in phenylketonuric children and adolescents. The study included 18 patients with PKU aged 5-18 yr (61% male) under clinical and nutritional treatment. Evaluation of food intake, anthropometry, and biochemical and phalangeal quantitative ultrasound were performed before (phase 1) and after (phase 2) calcium supplementation (1000 mg/d) for 34 d...
March 13, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28295469/assessing-new-peptides-that-may-be-involved-in-the-physiological-regulation-of-the-gonadal-axis-in-humans-gonadotropin-inhibitory-hormone
#17
Peter Y Liu
The hypothalamo-pituitary-testicular (HPT) and hypothalamo-pituitary-ovarian (HPO) axes are integrated networks that regulate androgenization or estrogenization (including embryonic, infantile, pubertal and adult sexual maturation), male or female sexual behavior, and spermatogenesis or ovulation, respectively. Dysregulation of the HPT axis, for example, results in pubertal delay, eunuchism, impaired spermatogenesis, and reduced systemic androgen exposure; and may also contribute to some of the features of male aging, impair recovery from protracted critical illness, and induce visceral adiposity, sarcopenia, osteopenia, and insulin resistance...
March 13, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28294978/discriminative-features-in-three-autosomal-recessive-cutis-laxa-syndromes-cutis-laxa-iia-cutis-laxa-iib-and-geroderma-osteoplastica
#18
REVIEW
Ariana Kariminejad, Fariba Afroozan, Bita Bozorgmehr, Alireza Ghanadan, Susan Akbaroghli, Hamid Reza Khorram Khorshid, Faezeh Mojahedi, Aria Setoodeh, Abigail Loh, Yu Xuan Tan, Nathalie Escande-Beillard, Fransiska Malfait, Bruno Reversade, Thatjana Gardeitchik, Eva Morava
Cutis laxa is a heterogeneous condition characterized by redundant, sagging, inelastic, and wrinkled skin. The inherited forms of this disease are rare and can have autosomal dominant, autosomal recessive, or X-linked inheritance. Three of the autosomal recessive cutis laxa syndromes, namely cutis laxa IIA (ARCL2A), cutis laxa IIB (ARCL2B), and geroderma osteodysplastica (GO), have very similar clinical features, complicating accurate diagnosis. Individuals with these conditions often present with cutis laxa, progeroid features, and hyperextensible joints...
March 15, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28290906/-bone-metabolism-and-mineral-density-in-chronic-heart-failure
#19
V N Larina, T N Raspopova
PURPOSE: to assess the state of bone metabolism and mineral density in outpatients with chronic heart failure (CHF). MATERIAL AND METHODS: We examined 70 outpatients (30 men, 40 women, aged 56-88 years) with CHF and 40 outpatients without CHF (10 men, 30 women, aged 57-88 years). Examination included laboratory assessment, echocardiography, study of bone mineral density (BMD) in the lumbar spine and femoral neck using dual-energy X-ray absorptiometry. RESULTS: Osteoporosis was recorded in 61...
July 2016: Kardiologiia
https://www.readbyqxmd.com/read/28289839/pneumosinus-dilatans-of-the-spheno-ethmoidal-complex-associated-with-hypovitaminosis-d-causing-bilateral-optic-canal-stenosis
#20
Saritha Aryan, Sumit Thakar, Aniruddha T Jagannatha, Chandrakiran Channegowda, Arun S Rao, Alangar S Hegde
INTRODUCTION: Pneumosinus dilatans (PSD) is a rare disorder of undetermined etiology characterized by expansion of the paranasal sinuses without bony erosion. Of the few cases of PSD described in indexed pediatric literature, there has been no reported case of this disorder presenting with optic canal stenosis in the setting of a vitamin deficiency. CASE MATERIAL: A 12-year-old girl presented with a 3-month history of progressive, painless, and asymmetric visual deterioration in her eyes...
March 13, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
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