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https://www.readbyqxmd.com/read/28734710/use-of-trabecular-bone-score-tbs-as-a-complementary-approach-to-dual-energy-x-ray-absorptiometry-dxa-for-fracture-risk-assessment-in-clinical-practice
#1
Enisa Shevroja, Olivier Lamy, Lynn Kohlmeier, Fjorda Koromani, Fernando Rivadeneira, Didier Hans
Osteoporosis is a common bone disease characterized by low bone mass and altered bone microarchitecture, resulting in decreased bone strength with an increased risk of fractures. In clinical practice, physicians can assess the risk of fracture for a patient based on several risk factors. Some such as age, weight, and history of fractures after 50 years of age, parental fracture, smoking status, and alcohol intake are incorporated into FRAX, an assessment tool that estimates the 10-year probability of hip fracture and major osteoporotic fractures based on the individual's risk factors profile...
July 19, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28734709/worldwide-fracture-prediction
#2
Ghada El-Hajj Fuleihan, Marlene Chakhtoura, Jane A Cauley, Nariman Chamoun
The substantial increase in the burden of non-communicable diseases in general and osteoporosis in particular, necessitates the establishment of efficient and targeted diagnosis and treatment strategies. This chapter reviews and compares different tools for osteoporosis screening and diagnosis; it also provides an overview of different treatment guidelines adopted by countries worldwide. While access to dual-energy X-ray absorptiometry to measure bone mineral density (BMD) is limited in most areas in the world, the introduction of risk calculators that combine risk factors, with or without BMD, have resulted in a paradigm shift in osteoporosis screening and management...
July 19, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28733716/osteosarcopenia-where-bone-muscle-and-fat-collide
#3
REVIEW
H P Hirschfeld, R Kinsella, G Duque
As the world's population ages, the prevalence of chronic diseases increases. Sarcopenia and osteoporosis are two conditions that are associated with aging, with similar risk factors that include genetics, endocrine function, and mechanical factors. Additionally, bone and muscle closely interact with each other not only anatomically, but also chemically and metabolically. Fat infiltration, a phenomenon observed in age-related bone and muscle loss, is highly prevalent and more severe in sarcopenic and osteoporotic subjects...
July 22, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28732346/multiplexed-aptasensor-for-simultaneous-detection-of-carcinoembryonic-antigen-and-mucin-1-based-on-metal-ion-electrochemical-labels-and-ru-nh3-6-3-electronic-wires
#4
Chao Ma, Haiyun Liu, Lina Zhang, Hao Li, Mei Yan, Xianrang Song, Jinghua Yu
In this paper, a dual-target electrochemical aptasensor has been developed for simultaneous detection of carcinoembryonic antigen and mucin-1 based on metal ion electrochemical labels and Ru(NH3)6(3+) electronic wires. When targets are present, the interaction between targets and their respective aptamers leads to the dissociation of double-strand DNA because the targets have higher affinity to its aptamer than the complementary strand. And the qualitative and quantitative analyses of the two targets are realized by the differential pulse voltammetry (DPV) peaks generated by metal ion electrochemical labels...
July 13, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28732160/color-encoded-assays-for-the-simultaneous-quantification-of-dual-cancer-biomarkers
#5
Jun Ma, Lei Zhan, Rong Sheng Li, Peng Fei Gao, Cheng Zhi Huang
For the first time, the scattering light of noble nanoparticles was applied for the simultaneous detection of dual cancer biomarkers. Two nanoprobes with dual scattering light colors were used for the simultaneous imaging of alpha-fetoprotein (AFP) and carcinoembryonic antigen (CEA) based on the sandwich-type immunoassay. Since AFP can combine anti-AFP-modified gold nanoparticles which have green scattering light under dark-field microscopic imaging (iDFM) technique while CEA can conjugate anti-CEA-immobilized silver nanoparticles which have blue scattering light, the simultaneous determination of AFP and CEA can be achieved by separately counting the number of green and blue light spots in iDFM technique...
July 21, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28730872/a-dual-label-time-resolved-fluorescence-immunoassay-for-the-simultaneous-determination-of-cystatin-c-and-%C3%AE-2-microglobulin-in-urine
#6
Y Liu, Y H Liu, W J Bei, K Wang, T T Cui, H L Li, D X Wu, S Q Chen, N Tan, J Y Chen
BACKGROUND: Contrast media is widely used in clinical diagnostic and interventional procedures, but may cause damage to the kidney, that is, contrast-induced nephropathy. This study was to establish a dual-label time-resolved fluorescence immunoassay (TRFIA) for the simultaneous determination of renal function markers cystatin-C (Cys-C) and β2-microglobulin (β2-MG) for the early diagnosis and follow-up surveillance of contrast-induced nephropathy. METHODS: A sandwich immunoassay was used to detect the concentration of Cys-C, and the competitive immunoassay was used to detect the concentration of β2-MG in 50 samples of urine...
July 21, 2017: British Journal of Biomedical Science
https://www.readbyqxmd.com/read/28728508/immunodeficiency-and-autoimmunity-coming-together-a-nearly-missed-diagnosis
#7
F T Carreiro, S Betkova, C Sepúlveda, M J Manata, O Cardoso, F Maltez, M F Moraes-Fontes
The coexistence of human immunodeficiency virus (HIV) and systemic lupus erythematosus (SLE) appears to be unusual and the prevalence of patients who carry the dual diagnosis is currently unknown. We hereby present a case of a C4 deficient HIV-1 positive Caucasian female under highly active antiretroviral therapy for the past eight years, admitted to hospital with an aggressive and potentially fatal clinical presentation of SLE. There was a favorable outcome despite a significant diagnostic delay. Despite its rarity, the case highlights that this association is remarkable and may be overlooked by clinicians familiar with either condition...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28728169/correlations-between-macular-skin-and-serum-carotenoids
#8
Christopher D Conrady, James P Bell, Brian M Besch, Aruna Gorusupudi, Kelliann Farnsworth, Igor Ermakov, Mohsen Sharifzadeh, Maia Ermakova, Werner Gellermann, Paul S Bernstein
Purpose: Ocular and systemic measurement and imaging of the macular carotenoids lutein and zeaxanthin have been employed extensively as potential biomarkers of AMD risk. In this study, we systematically compare dual wavelength retinal autofluorescence imaging (AFI) of macular pigment with skin resonance Raman spectroscopy (RRS) and serum carotenoid levels in a clinic-based population. Methods: Eighty-eight patients were recruited from retina and general ophthalmology practices from a tertiary referral center and excluded only if they did not have all three modalities tested, had a diagnosis of macular telangiectasia (MacTel) or Stargardt disease, or had poor AFI image quality...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28727616/iterative-reconstruction-may-improve-diagnosis-of-gout-an-ex-vivo-bio-phantom-dual-energy-computed-tomography-study
#9
Torsten Diekhoff, Maximilian Kotlyarov, Jürgen Mews, Bernd Hamm, Kay-Geert Armin Hermann
OBJECTIVES: We hypothesize that, compared with filtered back projection (FBP), iterative reconstruction (IR) increases the detected volume of uric acid, which serves as a measure of the sensitivity of the method, and therefore allows examinations with lower radiation exposure. Thus, the aim of our study was to evaluate the role of IR in dual-energy computed tomography (DECT) for gout assessment and volumetry in an ex vivo gout model using an epoxy phantom and a biophantom. MATERIALS AND METHODS: We prepared specimens with different concentrations of monosodium uric acid in ultrasound gel (30%-50%) and inserted them into an epoxy-based phantom and a porcine foreleg...
July 19, 2017: Investigative Radiology
https://www.readbyqxmd.com/read/28726368/mussel-inspired-polydopamine-coated-lanthanide-nanoparticles-for-nir-ii-ct-dual-imaging-and-photothermal-therapy
#10
Yu Dai, Dongpeng Yang, Danping Yu, Cong Cao, Qiuhong Wang, Songhai Xie, Liang Shen, Wei Feng, Fuyou Li
Nanomedicine has attracted substantial attentions for accurate diagnosis or treatment of carcinoma in recent years. Nd3+ doped lanthanide nanophosphors based near-infrared-II (NIR-II) optical imaging is widely used for deep penetration tissue imaging while X-ray computed tomography (CT) is well-suited for in vivo imaging. Polymer coated lanthanide nanophosphors were increasingly used as both diagnostics and therapies for tumor in vivo. However, the bio-compatibility of nanocomposites and efficiency of tumor ablation should be taken into consideration when construct of a nanotheranostic probe...
July 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28726170/prescribing-trends-in-a-glaucoma-clinic-and-adherence-to-egs-guidelines-a-retrospective-non-interventional-single-center-uk-study
#11
Mark Fajgenbaum, Ejaz Ansari
INTRODUCTION: The purpose of this study was to determine prescribing trends in a specialist glaucoma clinic in the UK. Specifically, the aims were to determine which drugs were prescribed as first-, second-, and third-line treatment, the persistence of first-, second-, and third-line treatment regimens, and the proportion of treatment decisions conforming to the European Glaucoma Society (EGS) guidelines. METHODS: A retrospective, non-interventional, single-center, case-note review was performed on a cohort of consecutive patients presenting to a specialist glaucoma clinic for follow-up...
July 19, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28724984/ph-and-urea-estimation-in-urine-samples-using-single-fluorophore-and-ratiometric-fluorescent-biosensors
#12
Rashmi Chaudhari, Abhijeet Joshi, Rohit Srivastava
Kidney diseases remain often undiagnosed due to inefficient screening methods available at patient's disposal. Early diagnosis and effective management of kidney problems can best be addressed by the development of biosensors for commonly occurring clinical biomarkers. Here we report the development of single fluorophore and dual fluorophore ratiometric biosensors based on alginate microspheres for pH and urea analysis in urine samples. A facile method of air driven atomization was used for developing these polymeric fluorophore and enzyme based biosensors...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724402/a-dual-colour-fluorescence-in-situ-hybridization-fish-assay-for-identifying-the-zoonotic-malaria-parasite-plasmodium-knowlesi-with-a-potential-application-for-the-specific-diagnosis-of-knowlesi-malaria-in-peripheral-level-laboratories-of-southeast-asia
#13
Jyotsna Shah, Akhila Poruri, Olivia Mark, Urmila Khadilka, Franziska Mohring, Robert W Moon, Ranjan Ramasamy
BACKGROUND: Plasmodium knowlesi is primarily responsible for zoonotic malaria in several Southeast Asian countries. Precise identification of the parasite in the blood of patients presently relies on an expensive and elaborate PCR procedure because microscopic examination of blood and other available field identification techniques lack adequate specificity. Therefore, the use of a simple and inexpensive dual-colour fluorescence in situ hybridization (FISH) assay, analogous to FISH assays recently described for Plasmodium falciparum and Plasmodium vivax, was investigated as a potential tool for identifying P...
July 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28723756/pulmonary-pleomorphic-carcinoma-a-case-report-and-review-of-the-literature
#14
Xiangwei Zhang, Yang Wang, Linping Zhao, Haiyan Jing, Shaowei Sang, Jiajun Du
RATIONALE: Pleomorphic carcinoma (PC) is a rare malignancy of the lung. It has a dual-cell component of spindle and/or giant cells, and of epithelial cells. PATIENT CONCERNS AND DIAGNOSES: We presented a case of PC. A 69-year-old healthy asymptomatic woman who was occasionally found an abnormal shadow on her chest X-rays. A computerized tomography scan showed a mass located in the left lingular lobe and the percutaneous lung biopsy pathology confirmed sarcomatoid cancer...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28723214/electrokinetic-manipulation-integrated-plasmonic-photonic-hybrid-raman-nanosensors-with-dually-enhanced-sensitivity
#15
Chao Liu, Zheng Wang, Erwen Li, Zexi Liang, Swapnajit Chakravarty, Xiaochuan Xu, Alan X Wang, Ray T Chen, Donglei Fan
To detect biochemicals with ultrahigh sensitivity, efficiency, reproducibility, and specificity has been the holy grail in the development of nanosensors. In this work, we report an innovative type of photonic-plasmonic hybrid Raman nanosensor integrated with electrokinetic manipulation by rational design, which offers dual mechanisms that enhance the sensitivity for molecule detection directly in solution. For the first time, we integrate large arrays of synthesized plasmonic nanocapsules with densely surface distributed silver (Ag) nanoparticles (NPs) on lithographically patterned photonic crystal slabs via electric-field assembling...
March 24, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28721555/the-value-of-physical-performance-measurements-alongside-assessment-of-sarcopenia-in-predicting-receipt-and-completion-of-planned-treatment-in-non-small-cell-lung-cancer-an-observational-exploratory-study
#16
Jemima T Collins, Simon Noble, John Chester, Helen E Davies, William D Evans, Daniel Farewell, Jason F Lester, Diane Parry, Rebecca Pettit, Anthony Byrne
INTRODUCTION: The presence of muscle mass depletion is associated with poor outcomes and survival in cancer. Alongside muscle mass, assessment of muscle strength or physical performance is essential for the diagnosis of sarcopenia. Non-small cell lung cancer (NSCLC) is a prevalent form of cancer with high mortality, and Eastern Cooperative Oncology Group (ECOG) Performance Status (PS) is commonly used to assess patients' suitability for treatment. However, a significant proportion of patients with good PS are unable to complete multidisciplinary team (MDT)-planned treatment...
July 18, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28717580/photoacoustic-ultrasound-dual-imaging-of-human-thyroid-cancers-an-initial-clinical-study
#17
Meng Yang, Lingyi Zhao, Xujin He, Na Su, ChenYang Zhao, Hewen Tang, Tao Hong, Wenbo Li, Fang Yang, Lin Lin, Bing Zhang, Rui Zhang, Yuxin Jiang, Changhui Li
We reported an initial clinical study of in vivo human thyroid by a photoacoustic/ultrasound handheld probe. Our dual-modality system is based on a high-end clinical ultrasound machine. Both healthy and cancerous thyroids were imaged non-invasively, and we compared the photoacoustic imaging with color Doppler ultrasound. The results of photoacoustic thyroid imaging could reveal many blood vessels that were not sensitive for Doppler ultrasound. Our study demonstrated that photoacoustic imaging could provide important complementary information for traditional ultrasound thyroid examination, which has a great potential for clinical diagnosis...
July 1, 2017: Biomedical Optics Express
https://www.readbyqxmd.com/read/28716499/fracture-risk-assessment-in-patients-with-diabetes-mellitus
#18
Catalina Poiana, Cristina Capatina
Diabetes mellitus, both type 1 and type 2 (T2DM), is associated with decreased bone strength as well as increased fracture risk. Bone mineral density is decreased in type 1 diabetes but increased in T2DM, compared with controls. This suggests alterations in bone quality are a major player in the pathogenesis of fragility fractures in patients with diabetes. The link between diabetes and bone appears to be mediated by complex pathways, including the insulin-insulin growth factors system, accumulation of advanced glycation end-products in bone collagen, microangiopathy, and increased bone marrow fat content...
July 14, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28716497/dual-energy-x-ray-absorptiometry
#19
Rajesh K Jain, Tamara Vokes
Bone mineral density (BMD) measurement by dual-energy X-ray absorptiometry (DXA) is the most commonly used method to assess fracture risk. DXA utilizes two different energy X-rays to calculate BMD and, by comparison to a young normative database, the T-score. In 1994, the World Health Organization defined osteoporosis based on T-score, changing the paradigm of the field and forever placing DXA measurements in the center of osteoporosis diagnosis. Since then, many large studies have demonstrated the predictive value of BMD by DXA-for every standard deviation decline in BMD, there is a relative risk of 1...
July 14, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28716050/working-for-patient-safety-a-qualitative-study-of-women-s-help-seeking-during-acute-perinatal-events
#20
Nicola Mackintosh, Susanna Rance, Wendy Carter, Jane Sandall
BACKGROUND: Women and their relatives can play an important role in early detection and help seeking for acute perinatal events. Recent UK reports indicate that patient-professional partnership in 'working for safety' can be difficult to achieve in practice, sometimes with catastrophic consequences. This research explored the experiences of women and relatives who had experienced early warning signs about their condition and sought help in escalating care. METHODS: Secondary analysis of case study data which included qualitative interviews with 22 women purposively sampled on account of experiencing a step up in care and 4 of their relatives from two NHS Trusts in England during 2010...
July 17, 2017: BMC Pregnancy and Childbirth
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