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https://www.readbyqxmd.com/read/28822224/is-it-necessary-for-all-samples-to-quantify-25ohd2-and-25ohd3-using-lc-ms-ms-in-clinical-practice
#1
Songlin Yu, Ruiping Zhang, Weiyan Zhou, Xinqi Cheng, Qian Cheng, Liangyu Xia, Shaowei Xie, Yicong Yin, Dandan Sun, Wei Su, Ling Qiu
BACKGROUND: The demand for vitamin D testing is increasing in China. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) immunoassay is specific and accurate but requires expensive equipment, experienced operators, and complicated pretreatment of serum. Automated immunoassays are simple and convenient but only determine total 25-hydroxyvitamin D (25OHD). The objective of this study was to quantify 25OHD2 and 25OHD3 in patients to assist clinical physicians and laboratory directors in choosing the most appropriate method to determine 25OHD...
August 19, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28821851/mass-production-of-bulk-artificial-nacre-with-excellent-mechanical-properties
#2
Huai-Ling Gao, Si-Ming Chen, Li-Bo Mao, Zhao-Qiang Song, Hong-Bin Yao, Helmut Cölfen, Xi-Sheng Luo, Fu Zhang, Zhao Pan, Yu-Feng Meng, Yong Ni, Shu-Hong Yu
Various methods have been exploited to replicate nacre features into artificial structural materials with impressive structural and mechanical similarity. However, it is still very challenging to produce nacre-mimetics in three-dimensional bulk form, especially for further scale-up. Herein, we demonstrate that large-sized, three-dimensional bulk artificial nacre with comprehensive mimicry of the hierarchical structures and the toughening mechanisms of natural nacre can be facilely fabricated via a bottom-up assembly process based on laminating pre-fabricated two-dimensional nacre-mimetic films...
August 18, 2017: Nature Communications
https://www.readbyqxmd.com/read/28820460/determination-of-sphingosine-1-phosphate-in-human-plasma-using-liquid-chromatography-coupled-with-q-tof-mass-spectrometry
#3
Emmanuel Eroume-A Egom, Ross Fitzgerald, Rebecca Canning, Rebabonye B Pharithi, Colin Murphy, Vincent Maher
Evidence suggests that high-density lipoprotein (HDL) components distinct from cholesterol, such as sphingosine-1-phosphate (S1P), may account for the anti-atherothrombotic effects attributed to this lipoprotein. The current method for the determination of plasma levels of S1P as well as levels associated with HDL particles is still cumbersome an assay method to be worldwide practical. Recently, a simplified protocol based on liquid chromatography-tandem mass spectrometry (LC-MS/MS) for the sensitive and specific quantification of plasma levels of S1P with good accuracy has been reported...
August 18, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28820411/-importance-of-shear-wave-elastography-of-livers-in-practically-healthy-pregnant-women
#4
E Sariyeva, S Salahova, N Bayramov
Pulse-wave elastography (SWE) that is one of the mostly used methods in the recent years holds important place in assessment of liver fibrosis. However there is no exact information on the results of liver elastography in healthy pregnant women in the world literature. The aim of the study was to investigate theSWE parameters of liver elastography in practically healthy pregnant women. The subject of the research was 50 practically healthy pregnant women within 18-45 years old (mean age 27.7±0.7). The pregnant women with genital and extragenital diseases were not included to the research...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28819766/-german-s3-guideline-for-renal-cell-carcinoma-presentation-and-discussion-of-essential-aspects-for-the-radiation-oncologist
#5
REVIEW
Arndt-Christian Müller, Birgitt van Oorschot, Oliver Micke, Matthias Guckenberger
PURPOSE: We aim to introduce and discuss the statements and recommendations of the German S3 guideline on renal cell cancer for daily practice of radiation oncologists. METHODS: This report comprises indication, treatment decision, dose prescription and current literature including treatment of oligometastatic disease. RESULTS: According to different stages of the disease and the structure of the guideline we focus on five treatment situations and recommendations for decision making: (1) Neo-/adjuvant treatment before or after nephrectomy: No indication for radiotherapy...
August 17, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/28817908/re-management-of-small-renal-masses-american-society-of-clinical-oncology-clinical-practice-guideline
#6
M Pilar Laguna
No abstract text is available yet for this article.
September 2017: Journal of Urology
https://www.readbyqxmd.com/read/28816194/risk-factors-associated-with-dental-implant-failure-a-study-of-302-implants-placed-in-a-regional-center
#7
Mehmet Oztel, Wojciech M Bilski, Arthur Bilski
AIM: The aim of this research is to determine which risk factors are associated with dental implant failure and survival. MATERIALS AND METHODS: Data pertaining to patients who received one or more dental implants from 2011 to 2013 in a regional center were retrospectively reviewed. This included a total of 302 Biomet 3i NanoTite Tapered Certain implants placed in 177 patients. All patients were followed up until the end of 2015. RESULTS: This study found an overall success rate of 95%...
August 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28814531/patients-with-nonalcoholic-fatty-liver-disease-have-a-low-response-rate-to-vitamin-d-supplementation
#8
Jaividhya Dasarathy, Rony Varghese, Abram Feldman, Amer Khiyami, Arthur J McCullough, Srinivasan Dasarathy
Background: Hypovitaminosis D is associated with an increased severity of nonalcoholic fatty liver disease (NAFLD), but reports on the response to cholecalciferol (vitamin D3) supplementation are conflicting.Objective: The objective of this study was to determine if standard vitamin D3 supplementation is effective in NAFLD with hypovitaminosis D.Methods: Sixty-five well-characterized adults [age (mean ± SD): 51.6 ± 12.3 y] with biopsy-proven NAFLD were screened. Forty-two patients (the ratio of men to women was 13:29) had hypovitaminosis D (plasma 25-hydroxyvitamin D [25(OH)D] <30 ng/mL)...
August 16, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28813855/an-optimized-design-of-a-parallel-robot-for-gait-training
#9
Marco Maddalena, Mozafar Saadat, Alireza Rastegarpanah, Rui C V Loureiro
The guidelines for enhancing robot-assisted training for post-stroke survivors head towards increasing exercise realism and variability; in particular lower limb rehabilitation needs the patient to feel challenged to adapt his locomotion and dynamic balance capabilities to different virtual ground scenarios. This paper proposes a design for a robot whose end-effector acts as a footplate to be in permanent contact with the user's foot during practice: the structure is such that it enables the user's foot to rotate around three axis, differently from what is currently available in the research for gait training; the parallel kinematic structure and the dimensional synthesis allow a suitable range of motion and aim at limiting device mass, footprint and reaction forces on the actuators when rendering virtual ground...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
https://www.readbyqxmd.com/read/28813485/magnetic-lenz-lenses-improve-the-limit-of-detection-in-nuclear-magnetic-resonance
#10
Nils Spengler, Peter T While, Markus V Meissner, Ulrike Wallrabe, Jan G Korvink
A high NMR detection sensitivity is indispensable when dealing with mass and volume-limited samples, or whenever a high spatial resolution is required. The use of miniaturised RF coils is a proven way to increase sensitivity, but situations may arise where space restrictions could prevent the use of a small resonant coil, e.g., in the interior of the smallest practicable micro-coils. We present the use of magnetic lenses, denoted as Lenz lenses due to their working principle, to focus the magnetic flux of an RF coil into a smaller volume and thereby locally enhance the sensitivity of the NMR experiment-at the expense of the total sensitive volume...
2017: PloS One
https://www.readbyqxmd.com/read/28811221/is-the-hype-around-the-reproductive-health-claims-of-maca-lepidium-meyenii-walp-justified
#11
REVIEW
Shruti Beharry, Michael Heinrich
ETHNOPHARMACOLOGICAL RELEVANCE: Maca - Lepidium meyenii Walp has been cultivated and used by Andean people for over 1,300 to 2000 years in Peru as food and medicine. Starting in the late 1990's it has developed into an important herbal medicine in China and is now cultivated there widely, too. AIM OF STUDY: This study aims to provide an insight into the emergence of maca on the global market as an alternative remedy to treat reproductive health related problems in both men and women and to critically assess these health claims...
August 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28810493/people-with-a-body-mass-index-%C3%A2-30-under-report-their-dietary-intake-a-systematic-review
#12
Helena Wehling, Joanne Lusher
Under-reporting of total energy intake is a common and well-known source of measurement error in dietary assessment, and evidence suggests that this bias is particularly significant in obese individuals. After a multi-stage selection process of eligible papers, this literature review appraised 34 papers detailing the accuracy of self-reported dietary intake in people with an obese body mass index (BMI ⩾ 30). The available literature to date shows that having a body mass index ⩾30 is associated with significant under-reporting of food intake...
July 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28810437/a-systematic-review-of-the-association-between-emotions-and-eating-behaviour-in-normal-and-overweight-adult-populations
#13
Tracey J Devonport, Wendy Nicholls, Christopher Fullerton
A systematic review was completed according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. A comprehensive search of four electronic databases (2004-2015) yielded 60,017 articles, of which 29 met inclusion criteria. Included studies performed poorly on data quality analysis in terms of randomisation and controlling for confounding factors. Participant's body mass index scores range from 19.73 (standard deviation = 1.54) to 28.4 (standard deviation = 1.4) kg/m(2)...
March 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28810367/culturally-based-health-assumptions-in-sub-saharan-african-immigrants-body-mass-index-predicting-self-reported-health-status
#14
Arlette J Ngoubene-Atioky, Claudette Williamson-Taylor
This study examined whether Sub-Saharan African adult immigrants maintained cultural preferences for curvier/higher body size post-migration to the United States. Linear and multiple regression analyses were utilized to discern the predicting effects of Sub-Saharan African immigrants' body mass index score on their self-reported health status at two post-migration data collection points. The initial assessment reveals that Sub-Saharan African immigrants' overweight body mass index score predicted better self-reported health status...
December 1, 2016: Journal of Health Psychology
https://www.readbyqxmd.com/read/28809867/-risk-perception-and-biological-parameters-related-to-obesity-in-a-sample-population-of-the-city-of-rome-italy-nurses-contribution-to-supporting-health-related-decisions
#15
Eduardo Mazza, Daniele I La Milia, Caterina Galletti, Stefano Gambioli, Umberto Moscato, Gianfranco Damiani, Patrizia Laurenti
INTRODUCTION: Obesity is a major public health problem because it is a risk factor for various chronic diseases and its incidence is constantly increasing due to changes in diet and lifestyle. In Italy, studies show that 32% of the population aged between 18 and 69 years is overweight and 10% is obese. The aim of this study was to measure the anthropometric characteristics of a sample population of the city of Rome (Italy) and correlate these with dietary habits and socio-demographic characteristics of participants in order to evaluate their specific health and educational needs...
May 2017: Igiene e Sanità Pubblica
https://www.readbyqxmd.com/read/28808492/assessment-of-anti-factor-xa-activity-of-enoxaparin-for-venous-thromboembolism-prophylaxis-in-morbidly-obese-surgical-patients
#16
Nouf Al Otaib, Zohour Bootah, Maha A Al Ammari, Tariq M Aldebasi, Abdulmalik M Alkatheri, Shmeylan A Al Harbi, Salah M AbuRuz, Abdulkareem M AlBekairy
BACKGROUND: Venous thromboembolism (VTE) can be encountered by 60% of hospitalized patients. Anticoagulants have been recommended to reduce the risk of VTE in patients with risk factors. However, no specific dosing recommendations for obese patients are provided in the current practice guidelines. The purpose of this study was to determine the efficacy and safety of weight-based dosing of enoxaparin for VTE prophylaxis among morbidly obese patients undergoing surgery. METHODS: Adult patients were enrolled if they have a body mass index (BMI) of ≥35 kg/m(2) and were scheduled for surgery...
July 2017: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/28807744/primary-stenting-is-not-necessary-in-benign-central-venous-stenosis
#17
Lynsey E Rangel, Sean P Lyden, Daniel G Clair
OBJECTIVE: To evaluate central venous stenosis (CVS) etiologies and presentation within a vascular surgery practice. We evaluated endovascular treatment modalities and the patency rates of our interventions. METHODS: 5 year retrospective review of endovascular intervention for CVS. Patient demographics, medical comorbidities, and variables were collected including etiology, indwelling device, previous upper extremity (UE) deep venous thrombosis (DVT), long term UE indwelling device (defined as greater than 30 days), malignancy status, hypercoagulable disorders, history of radiation or mediastinal fibrosis or masses, and anticoagulation and/or antiplatelet therapy...
August 11, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28806987/a-prospective-study-to-evaluate-the-risk-malignancy-index-and-its-diagnostic-implication-in-patients-with-suspected-ovarian-mass
#18
Santosh Kumar Dora, Atal Bihari Dandapat, Benudhar Pande, Jatindra Prasad Hota
BACKGROUND: There is no universal screening method for discrimination between benign and malignant adnexal masses yet. Various authors have tried tumor markers, imaging studies, cytology but no one yet is a definite method for screening of cancer ovary, for which a combined diagnostic modality has come to practice in form of RMI. With this background we conducted our study "Evaluation of risk malignancy index and its diagnostic value in patients with adnexal masses". METHODS: The aim of the study was to determine the effectiveness of risk of malignancy index (RMI-3) in preoperative discrimination between benign and malignant masses and also to reveal the most suitable cut off value...
August 14, 2017: Journal of Ovarian Research
https://www.readbyqxmd.com/read/28806489/characteristics-of-spontaneous-births-attended-by-midwives-and-physicians-in-us-hospitals-in-2014
#19
Patrick Thornton
INTRODUCTION: This study compares characteristics and birth outcomes of women attended by certified nurse-midwives/certified midwives (midwives) and physicians in US hospitals in 2014. METHODS: Data reported in 2014 on the 2003 version of the US birth certificate were examined. Spontaneous vaginal births attributed to midwives and physicians and occurring in hospitals were included. Demographic and risk profiles and adjusted odds ratios for maternal and newborn outcomes were compared by provider type...
August 14, 2017: Journal of Midwifery & Women's Health
https://www.readbyqxmd.com/read/28805260/determination-of-carbon-isotope-enrichment-factors-of-cis-dce-after-precursor-amendment
#20
Simon Leitner, Thomas G Reichenauer, Andrea Watzinger
RATIONALE: Bacterial reductive dechlorination of the groundwater contaminant tetrachloroethene (PCE) involves the formation of lower chlorinated metabolites. Metabolites can be instantaneously formed and consumed in this sequential process; quantification and validation of their isotopic effects conventionally rely on separate laboratory microcosm studies. Here, we present an evaluation method enabling the determination of the carbon isotope enrichment factor (ε) for the intermediate cis-dichloroethene (cis-DCE) by a single laboratory microcosm study initially amending the precursor PCE only...
August 14, 2017: Rapid Communications in Mass Spectrometry: RCM
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