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https://www.readbyqxmd.com/read/29125120/canal-to-diaphysis-ratio-as-a-risk-factor-for-hip-fractures-and-hip-fracture-pattern
#1
Prasad Ellanti, Kunal Mohan, Andrew Moriarity, Niall Hogan, Tom McCarthy
INTRODUCTION: Osteoporosis and related fractures constitute a significant burden on modern healthcare. The standard method of diagnosing osteoporosis with a dual-energy X-ray absorptiometry (DXA) scan is limited by accessibility and expense. The thickness of the cortex of the proximal femur on plain radiographs has been suggested to be a method for indicating osteoporosis and as a risk factor of hip fractures in the elderly. METHODS: A retrospective study was undertaken to assess the usefulness of the canal-diaphysis ratio (CDR) as a risk factor for developing a hip fracture, excluding patients presenting under 50 years old, following high-energy trauma or pathological fractures...
2017: SICOT-J
https://www.readbyqxmd.com/read/29116139/integrated-plasmon-enhanced-raman-scattering-ipers-spectroscopy
#2
Hailong Wang, Haibo Li, Shuping Xu, Bing Zhao, Weiqing Xu
A new strategy named integrated plasmon-enhanced Raman scattering (iPERS) spectroscopy that features a configuration of evanescent field excitation and inverted collection is presented, which well unites the local field enhancement and far field emission, couples localized and propagating surface plasmons, integrates the SERS substrates and Raman spectrometers via a self-designed aplanatic solid immersion lens. A metallic nanoparticle-on-a film (NOF) system was adopted in this configuration because it improves the amplification of the incidence light field in near field by 10 orders of magnitude due to the simultaneous excitation of quadrupolar and dipolar resonance modes...
November 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29081852/the-aetiology-of-the-non-ossifying-fibroma-of-the-distal-femur-and-its-relationship-to-the-surrounding-soft-tissues
#3
A Goldin, D A Muzykewicz, J Dwek, S J Mubarak
PURPOSE: We aim to retrospectively evaluate patients with non-ossifying fibroma (NOF) of the distal femur by radiographs, CT and MRI, and to provide a theory describing the reasoning for the distal femur NOF's location and aetiology. METHODS: Charts of patients with NOFs between 2003 and 2014 were retrospectively reviewed. Inclusion criteria encompassed a diagnosis of NOF of the distal femur by imaging, and histologically, if available. Radiographs, CT and MRI were used to characterise the relationship of the NOF lesions with the surrounding soft tissues...
October 1, 2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28990129/differences-in-lethal-response-between-male-and-female-calanoid-copepods-and-life-cycle-traits-to-cadmium-toxicity
#4
Esther U Kadiene, Capucine Bialais, Baghdad Ouddane, Jiang-Shiou Hwang, Sami Souissi
This study determined the effect of cadmium (Cd) toxicity comparatively on two copepods, Eurytemora affinis (Poppe 1880) from a temperate region (Seine Estuary, France) and Pseudodiaptomus annandalei (Sewell 1919) from a subtropical region (Danshuei Estuary, Taiwan), according to their sex and reproductive stages. In addition, the effect of Cd to their life cycle traits was quantified. In the first experiment, both copepod sexes were exposed to 40, 80, 150, 220, and 360 µg/L of Cd and a control cultured in salinity 15, except that the temperature was 18 °C for E...
November 2017: Ecotoxicology
https://www.readbyqxmd.com/read/28951638/non-parallel-screw-fixation-for-femoral-neck-fractures-in-young-adults
#5
Sherif Galal, Mohamed Nagy
INTRODUCTION: Current literature shows divergence of views regarding screws positioning in femoral neck fractures fixation. The goal of this study is to evaluate the efficiency of divergent screw fixation for fracture neck of femur (NOF). METHODS: The study was conducted at an academic Level 1 Trauma Center. This is a retrospective study conducted from October 2013 to October 2016. The study included 41 patients (33 males, 8 females) suffering from fracture NOF who were fixed using BDSF technique (26 within 24 h...
July 2017: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/28949623/global-method-for-electron-correlation
#6
Mario Piris
The current work presents a new single-reference method for capturing at the same time the static and dynamic electron correlation. The starting point is a determinant wave function formed with natural orbitals obtained from a new interacting-pair model. The latter leads to a natural orbital functional (NOF) capable of recovering the complete intrapair, but only the static interpair correlation. Using the solution of the NOF, two new energy functionals are defined for both dynamic (E^{dyn}) and static (E^{sta}) correlation...
August 11, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28936598/the-impact-of-the-new-national-bone-health-alliance-nbha-diagnostic-criteria-on-the-prevalence-of-osteoporosis-in-the-united-states-supplementary-presentation
#7
N C Wright, K G Saag, B Dawson-Hughes, S Khosla, E S Siris
We evaluated the prevalence of osteoporosis using the osteoporosis diagnostic criteria developed by the National Bone Health Alliance (NBHA), which includes qualified fractures, FRAX score in addition to BMD. The expanded definition increases the prevalence compared to BMD alone definitions; however, it may better identify those at elevated fracture risk. Recently an NBHA working Group published a paper in OI with recommendations for expanding the criteria that would constitute an osteoporosis diagnosis in postmenopausal women and in men over age 50 for use in the US - Siris et al...
November 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28871211/functional-prediction-of-long-non-coding-rnas-in-ovarian-cancer-associated-fibroblasts-indicate-a-potential-role-in-metastasis
#8
Fatemeh Vafaee, Emily K Colvin, Samuel C Mok, Viive M Howell, Goli Samimi
Cancer-associated fibroblasts (CAFs) contribute to the poor prognosis of ovarian cancer. Unlike in tumour cells, DNA mutations are rare in CAFs, raising the likelihood of other mechanisms that regulate gene expression such as long non-coding RNAs (lncRNAs). We aimed to identify lncRNAs that contribute to the tumour-promoting phenotype of CAFs. RNA expression from 67 ovarian CAF samples and 10 normal ovarian fibroblast (NOF) samples were analysed to identify differentially expressed lncRNAs and a functional network was constructed to predict those CAF-specific lncRNAs involved in metastasis...
September 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819829/surgical-treatment-for-symptomatic-non-ossifying-fibromas-of-the-lower-extremity-with-calcium-sulfate-grafts-in-skeletally-immature-patients
#9
Antonio Andreacchio, Flavia Alberghina, Gianluca Testa, Federico Canavese
BACKGROUND: Non-ossifying fibromas (NOFs) are common benign bone lesions found in children and adolescents. They usually involve metaphysis of long bones, tend to gradually disappear with age and usually do not require surgery, while they are not associated with pathological fractures. The aim of this study was to evaluate the outcome and efficacy of a single-stage procedure, comprising curettage of the lesion and calcium sulfate pellet (CaSP) grafting, in skeletally immature patients with large, symptomatic NOF of the lower extremity, and the possible limitations of the procedure...
August 17, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28817516/after-the-gap-analysis-education-and-practice-changes-to-prepare-nurses-of-the-future
#10
Audrey Marie Beauvais, Meredith Wallace Kazer, Barbara Aronson, Suzanne E Conlon, Pamela Forte, Kathleen S Fries, Judith M Hahn, Russell Hullstrung, Meg Levvis, Paula McCauley, Patricia Padula Morgan, Linda Perfetto, Lisa M Rebeschi, Sheila B Solernou, Patricia Span, Lisa J Sundean
AIM: The purpose of the study was to describe the Connecticut Nursing Collaborative-Action Coalition's work in identifying and addressing gaps between nursing education and practice based on the Institute of Medicine's Future of Nursing report. BACKGROUND: Massachusetts Nurse of the Future (NOF) Competencies highlight the knowledge, skills, and attitudes/behaviors required for professional nurses. Integrating these concepts into the educational system will prepare the nursing workforce to respond to current/future health care needs and population health issues...
September 2017: Nursing Education Perspectives
https://www.readbyqxmd.com/read/28815485/screening-for-osteoporosis-in-older-men-operating-characteristics-of-proposed-strategies-for-selecting-men-for-bmd-testing
#11
Susan J Diem, Katherine W Peters, Margaret L Gourlay, John T Schousboe, Brent C Taylor, Eric S Orwoll, Jane A Cauley, Lisa Langsetmo, Carolyn J Crandall, Kristine E Ensrud
BACKGROUND: The optimal approach for selecting men for bone mineral density (BMD) testing to screen for osteoporosis is uncertain. OBJECTIVE: To compare strategies for selecting older men for screening BMD testing. DESIGN: Prospective cohort study. PARTICIPANTS: A total of 4043 community-dwelling men aged ≥70 years at four US sites. MAIN MEASURES: BMD at the total hip, femoral neck, and lumbar spine using dual-energy x-ray absorptiometry (DXA)...
November 2017: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/28808627/non-ossifying-fibromas-case-series-including-in-uncommon-upper-extremity-sites
#12
Akio Sakamoto, Ryuzo Arai, Takeshi Okamoto, Shuichi Matsuda
AIM: To investigate non-ossifying fibromas (NOFs) common fibrous bone lesions in children that occur in bones of the lower extremities. METHODS: We analyzed 44 cases of NOF including 47 lesions, which were referred with a working diagnosis of neoplastic lesions. Lesions were located in the upper extremities (1 proximal humerus, 1 distal radius) and the lower extremities (25 distal femurs, 12 proximal and 4 distal tibias, and 4 proximal fibulas). RESULTS: Three cases had NOFs in multiple anatomical locations (femur and fibula in 1 case, femur and tibia in 2 cases)...
July 18, 2017: World Journal of Orthopedics
https://www.readbyqxmd.com/read/28749295/serial-ultrasound-to-estimate-fetal-growth-curves-in-southern-tamandua-tamandua-tetradactyla
#13
Rachel Thompson, Tiffany M Wolf, Heather Robertson, Margarita Woc Colburn, Alexis Moreno, Anneke Moresco, Anne Elise Napier, Sally A Nofs
From 2012 to 2015, 16 pregnancies were monitored by ultrasonography in nine tamanduas ( Tamandua tetradactyla ) housed in three zoological facilities. Sonographic measurements were recorded to establish fetal growth curves using thoracic and skull landmarks described for giant anteaters ( Myrmecophaga tridactyla ). All pregnancies resulted in the uncomplicated delivery of healthy offspring, thus gestational development was considered normal. These data may be used as a reference for normal fetal development with potential for estimating parturition date in the absence of breeding data...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28749276/obstetrical-and-postpartum-complications-in-lesser-madagascar-hedgehog-tenrecs-echinops-telfairi-four-cases
#14
Kimberly A Thompson, Dalen Agnew, Sally A Nofs, Tara M Harrison
Currently, little is known about diseases and health concerns in tenrecs, family Tenrecidae. During the past 10 yr of breeding lesser Madagascar hedgehog tenrecs ( Echinops telfairi ) at a single zoological institution, a diverse range of obstetric and postpartum complications have been observed: pyometra, metritis, retained fetal membranes, retained fetus, perinatal mortality, and maternal neglect with subsequent successful hand-rearing of neonates. Treatment of these problems is complicated in tenrecs because of their small size and secretive behavior...
June 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28725521/naso-or-orbitocutaneous-fistulas-after-free-flap-reconstruction-of-orbital-exenteration-defects-retrospective-study-systematic-review-and-meta-analysis
#15
Patrick Tassone, Kurren S Gill, David Hsu, Gurston Nyquist, Howard Krein, Jurij R Bilyk, Anna P Murchison, James J Evans, Ryan N Heffelfinger, Joseph M Curry
Objective  Naso- or orbitocutaneous fistula (NOF) is a challenging complication of orbital exenteration, and it often requires surgical repair. We sought to identify the incidence and risk factors for NOF after orbital exenteration. Study Design  Retrospective chart review, systematic review, meta-analysis. Setting  Tertiary care center. Participants  Patients undergoing free flap reconstruction following orbital exenteration. Records were reviewed for clinicopathologic data, operative details, and outcomes...
August 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28722686/on-the-performance-of-natural-orbital-functional-approximations-in-the-hubbard-model
#16
I Mitxelena, M Piris, M Rodríguez-Mayorga
Strongly correlated materials are now under intense development, and natural orbital functional (NOF) methods seem to be able to capture the physics of these systems. We present a benchmark based on the Hubbard model for a class of commonly used NOF approximations (also known as reduced density matrix functional approximations). Our findings highlight the importance of imposing ensemble N-representability conditions in order to obtain consistent results in systems with either weak or strong electronic correlation, such as the Hubbard system with a varying two-particle interaction parameter...
July 19, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28612434/effect-of-increasing-taurine-and-methionine-supplementation-on-urinary-taurine-excretion-in-a-model-insectivore-the-giant-anteater-myrmecophaga-tridactyla
#17
S A Nofs, E S Dierenfeld, R C Backus
The giant anteater (Mymercophaga tridactyla) is a highly specialized insectivore for which nutrient requirements are not clearly established, making diet formulation challenging for this species. Multiple clinical reports suggest anteaters have an obligate dietary taurine (TAU) requirement. Sulphur amino acid (SAA) metabolism in adult anteaters was evaluated using noninvasive methods to measure TAU synthesis potential from dietary methionine (MET) and a basal diet containing on a dry matter (DM) basis 1.7 mg TAU/kg DM and 6...
June 14, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28587786/the-history-of-bone-densitometry
#18
Paul D Miller
Bone densitometry (dual energy x-ray absorptiometry-DXA) is a vital medical tool needed for the diagnosis of osteoporosis in non-fractured patients; predicting future fracture risk; and monitoring bone mineral density (BMD) in untreated or treated patients. The history of the pivotal international society involved in the science and clinical interpretation of DXA, the International Society for Clinical Densitometry (ISCD) is defined in this manuscript. Since DXA and Osteoporosis management are intimately linked, the ISCD has over the years developed strong bonds with both the National Osteoporosis Foundation (NOF) and the International Osteoporosis Foundation (IOF)...
November 2017: Bone
https://www.readbyqxmd.com/read/28553178/number-of-foci-of-functioning-thyroid-tissue-remaining-after-thyroidectomy-for-differentiated-thyroid-cancer-institutional-experience
#19
Kanchan Kulkarni, Gauri Khorjekar, Mihriye Mete, Douglas Van Nostrand
Radioiodine imaging of the neck with a pinhole collimator (PinC) is frequently performed in differentiated thyroid cancer (DTC) patients for visualizing individual, and a total number of foci (NOF) of functioning residual thyroid tissue (FRTT) within the thyroid bed in postthyroidectomy patients. The objective of this study was to determine our experience regarding the NOF of FRTT visualized on pretherapy radioiodine PinC images. We performed a retrospective review of radioiodine PinC images of the neck of patients with very low-risk DTC and who had thyroidectomy performed by selected surgeons at MedStar Washington Hospital Center...
April 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28552748/characterization-of-a-previously-unrecognized-clinical-phenomenon-delayed-shock-after-cardiac-implantable-electronic-device-extraction
#20
Arwa Younis, Roy Beinart, Nofrat Nehoray, Elad Asher, Shlomy Matetzky, Roy Beigel, Anat Wieder, Michael Glikson, Eyal Nof
BACKGROUND: Transvenous lead extraction remains a challenging procedure with inherent risk and associated complications. OBJECTIVE: We sought to characterize and evaluate predictors of delayed shock after transvenous lead extraction with no intraprocedural complications. METHODS: We retrospectively analyzed data of 217 consecutive patients who underwent extraction between 2010 and 2015. The primary end point was sudden onset of shock more than 4 hours after the completion of the procedure...
October 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
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