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https://www.readbyqxmd.com/read/28088727/representativeness-of-clinical-pet-study-participants-with-schizophrenia-a-systematic-review
#1
So Kirino, Takefumi Suzuki, Hiroyoshi Takeuchi, Masaru Mimura, Hiroyuki Uchida
While positron emission tomography (PET) studies have provided invaluable data on antipsychotic effects, selection bias remains a serious concern. A systematic review of PET studies that measured dopamine D2 receptor blockade with antipsychotics was conducted to examine their inclusion/exclusion criteria, using PubMed, EMBASE, and ClinicalTrials.gov (last search, September 2016). PET studies were included if they measured D2 receptor occupancy in patients with schizophrenia and included introduction of antipsychotic treatment or antipsychotic regimen change in a systematic manner...
January 5, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28088617/assessing-physician-productivity-following-norwegian-hospital-reform-a-panel-and-data-envelopment-analysis
#2
Karl Arne Johannessen, Sverre A C Kittelsen, Terje P Hagen
BACKGROUND: Although health care reforms may improve efficiency at the macro level, less is known regarding their effects on the utilization of health care personnel. Following the 2002 Norwegian hospital reform, we studied the productivity of the physician workforce and the effect of personnel mix on this measure in all nineteen Norwegian hospitals from 2001 to 2013. METHODS: We used panel analysis and non-parametric data envelopment analysis (DEA) to study physician productivity defined as patient treatments per full-time equivalent (FTE) physician...
January 6, 2017: Social Science & Medicine
https://www.readbyqxmd.com/read/28088483/physiology-recording-with-magnetic-field-probes-for-fmri-denoising
#3
Simon Gross, Laetitia Vionnet, Lars Kasper, Benjamin E Dietrich, Klaas P Pruessmann
Physiological noise originating in cardiovascular and respiratory processes is a substantial confound in BOLD fMRI. When unaccounted for it reduces the temporal SNR and causes error in inferred brain activity and connectivity. Physiology correction typically relies on auxiliary measurements with peripheral devices such as ECG, pulse oximeters, and breathing belts. These require direct skin contact or at least a tight fit, impairing subject comfort and adding to the setup time. In this work, we explore a touch-free alternative for physiology recording, using magnetic detection with NMR field probes...
January 11, 2017: NeuroImage
https://www.readbyqxmd.com/read/28088462/activation-of-the-hypoxia-inducible-factor-1-alpha-subunit-pathway-in-steatotic-liver-contributes-to-formation-of-cholesterol-gallstones
#4
Yoichiro Asai, Tetsuya Yamada, Sohei Tsukita, Kei Takahashi, Masamitsu Maekawa, Midori Honma, Masanori Ikeda, Keigo Murakami, Yuichiro Munakata, Yuta Shirai, Shinjiro Kodama, Takashi Sugisawa, Yumiko Chiba, Yasuteru Kondo, Keizo Kaneko, Kenji Uno, Shojiro Sawada, Junta Imai, Yasuhiro Nakamura, Hiroaki Yamaguchi, Kozo Tanaka, Hironobu Sasano, Nariyasu Mano, Yoshiyuki Ueno, Tooru Shimosegawa, Hideki Katagiri
BACKGROUND AND AIMS: Hypoxia inducible factor 1 alpha subunit (HIF1A) is a transcription factor that controls the cellular response to hypoxia and is activated in hepatocytes of patients with non-alcoholic fatty liver disease (NAFLD). NAFLD increases risk for cholesterol gallstone disease by unclear mechanisms. We studied the relationship between HIF1A and gallstone formation associated with liver steatosis. METHODS: We performed studies with mice with inducible disruption of Hif1a in hepatocytes, via a Cre adenoviral vector (iH-HIFKO mice), and mice without disruption of Hif1a (control mice)...
January 11, 2017: Gastroenterology
https://www.readbyqxmd.com/read/28088270/association-of-plasminogen-activator-inhibitor-1-and-vitamin-d-receptor-expression-with-the-risk-of-keloid-disease-in-a-chinese-population
#5
Zhen-Hua Gong, Jian-Feng Ji, Jun Yang, Tie Xiang, Chang-Kai Zhou, Xuan-Liang Pan, Jian Yao
Keloid disease (KD) is a benign fibroproliferative scarring condition of unknown etiopathogenesis. Plasminogen activator inhibitor-1 (PAI-1) and vitamin D receptor (VDR) have been shown to play important roles in the progression of tissue fibrosis; therefore, both these genes are potential susceptibility genes for KD. We aimed to determine whether the gene expression levels of PAI-1 and VDR are altered in Chinese KD patients. We measured the expression of PAI and VDR in human peripheral blood lymphocytes in 236 patients with keloid and 219 age- and sex-matched healthy controls by quantitative real-time polymerase chain reaction...
January 2017: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/28088206/comparing-accelerometer-pedometer-and-a-questionnaire-for-measuring-physical-activity-in-bronchiectasis-a-validity-and-feasibility-study
#6
B O'Neill, S M McDonough, J J Wilson, I Bradbury, K Hayes, A Kirk, L Kent, D Cosgrove, J M Bradley, M A Tully
BACKGROUND: There are challenges for researchers and clinicians to select the most appropriate physical activity tool, and a balance between precision and feasibility is needed. Currently it is unclear which physical activity tool should be used to assess physical activity in Bronchiectasis. The aim of this research is to compare assessment methods (pedometer and IPAQ) to our criterion method (ActiGraph) for the measurement of physical activity dimensions in Bronchiectasis (BE), and to assess their feasibility and acceptability...
January 14, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28087496/digital-pills-to-measure-opioid-ingestion-patterns-in-emergency-department-patients-with-acute-fracture-pain-a-pilot-study
#7
Peter R Chai, Stephanie Carreiro, Brendan J Innes, Rochelle K Rosen, Conall O'Cleirigh, Kenneth H Mayer, Edward W Boyer
BACKGROUND: Nonadherence to prescribed regimens for opioid analgesic agents contributes to increasing opioid abuse and overdose death. Opioids are frequently prescribed on an as-needed basis, placing the responsibility to determine opioid dose and frequency with the patient. There is wide variability in physician prescribing patterns because of the lack of data describing how patients actually use as-needed opioid analgesics. Digital pill systems have a radiofrequency emitter that directly measures medication ingestion events, and they provide an opportunity to discover the dose, timing, and duration of opioid therapy...
January 13, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28087303/activity-levels-and-exercise-motivation-in-copd-patients-and-their-resident-loved-ones
#8
Rafael Mesquita, Nienke Nakken, Daisy J A Janssen, Esther H A van den Bogaart, Jeannet M L Delbressine, Johannes M N Essers, Kenneth Meijer, Monique van Vliet, Geeuwke J de Vries, Jean W M Muris, Fabio Pitta, Emiel F M Wouters, Martijn A Spruit
BACKGROUND: Resident loved ones of patients with COPD can play an important role in helping patients to engage in physical activity. We aimed to compare activity levels and exercise motivation between COPD patients and their resident loved ones; to compare the same outcome measures in patients after stratification for the physical activity level of the loved ones; and to predict the likelihood of being physically active in patients with a physically active resident loved one. METHODS: 125 patient-loved one dyads were cross-sectionally and simultaneously assessed...
January 10, 2017: Chest
https://www.readbyqxmd.com/read/28086960/the-relationship-between-synovitis-quantified-by-an-ultrasound-7-joint-inflammation-score-and-physical-disability-in-rheumatoid-arthritis-a-cohort-study
#9
Jakub Závada, Petra Hánová, Jana Hurňáková, Lenka Szczuková, Michal Uher, Šárka Forejtová, Martin Klein, Herman Mann, Marta Olejárová, Olga Růžičková, Olga Šléglová, Karel Hejduk, Karel Pavelka
BACKGROUND: Restoring normal physical functioning is a major therapeutic aim in the management of rheumatoid arthritis (RA). It is unknown, whether the extent of synovial inflammation quantified by musculoskeletal ultrasound (US) can predict current or future capacity for physical functioning. To answer this question we investigated the longitudinal relationship between physical function assessed by the health assessment questionnaire (HAQ) and the German 7-joint ultrasound score (US7S) in a prospective cohort of patients with RA...
January 13, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28086870/a-pilot-study-of-a-community-health-agent-led-type-2-diabetes-self-management-program-using-motivational-interviewing-based-approaches-in-a-public-primary-care-center-in-s%C3%A3-o-paulo-brazil
#10
Thais Moura Ribeiro do Valle Nascimento, Ken Resnicow, Marcia Nery, Alexandra Brentani, Elizabeth Kaselitz, Pooja Agrawal, Simanjit Mand, Michele Heisler
BACKGROUND: Rates of noncommunicable diseases (NCDs) such as type 2 diabetes are escalating in low and middle-income countries such as Brazil. Scalable primary care-based interventions are needed to improve self-management and clinical outcomes of adults with diabetes. This pilot study examines the feasibility, acceptability, and outcomes of training community health agents (CHAs) in Motivational Interviewing (MI)-based counseling for patients with poorly controlled diabetes in a primary care center in São Paulo, Brazil...
January 13, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28086828/subjective-and-objective-assessment-of-physical-activity-in-multiple-sclerosis-and-their-relation-to-health-related-quality-of-life
#11
Theresa Krüger, Janina R Behrens, Anuschka Grobelny, Karen Otte, Sebastian Mansow-Model, Bastian Kayser, Judith Bellmann-Strobl, Alexander U Brandt, Friedemann Paul, Tanja Schmitz-Hübsch
BACKGROUND: Physical activity (PA) is frequently restricted in people with multiple sclerosis (PwMS) and aiming to enhance PA is considered beneficial in this population. We here aimed to explore two standard methods (subjective plus objective) to assess PA reduction in PwMS and to describe the relation of PA to health-related quality of life (hrQoL). METHODS: PA was objectively measured over a 7-day period in 26 PwMS (EDSS 1.5-6.0) and 30 matched healthy controls (HC) using SenseWear mini® armband (SWAmini) and reported as step count, mean total and activity related energy expenditure (EE) as well as time spent in PA of different intensities...
January 13, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28081539/regulation-of-anoikis-resistance-by-nadph-oxidase-4-and-epidermal-growth-factor-receptor
#12
Hyeryeong Kim, Jee Young Sung, Eun-Kyung Park, Seongho Kho, Kyung Hee Koo, Seog-Yun Park, Sung-Ho Goh, Yoon Kyung Jeon, Sekyung Oh, Byung-Kiu Park, Yong-Keun Jung, Yong-Nyun Kim
BACKGROUND: Normal cells are sensitive to anoikis, which is a cell detachment-induced apoptosis. However, cancer cells acquire anoikis resistance that is essential for successful metastasis. This study aimed to demonstrate the function and potential mechanism of NADPH oxidase 4 (NOX4) and EGFR activation in regulating anoikis resistance in lung cancer. METHODS: Cells were cultured either in the attached or suspended condition. Cell viability was measured by cell counting and live and dead cell staining...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28081467/oxidative-stress-and-mrna-expression-of-acetylcholinesterase-in-the-leukocytes-of-ischemic-patients
#13
Mesut Işık, Şükrü Beydemir, Aslan Yılmaz, Muhammet Emin Naldan, Hatice Esra Aslan, İlhami Gülçin
BACKGROUND: Pathogenesis of ischemic brain injury is occurred by crucial metabolic reasons. For instance, oxidative stress from free radical generation is causing to the thrombotic cerebrovascular stroke. In this case, the measurement of the oxidative stress is very important for a better understanding of the stroke pathophysiology. Because, the oxidative stress in stroke is generally assumed as one of the mechanisms taking part in neuronal damage. Thus, oxidative stress has a vital role in the cholinergic system...
January 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28081342/exploring-cyp2b6-activity-by-measuring-the-presence-ofnevirapine-hydroxy-metabolites-in-plasma
#14
Suzana Mustafa, Norul Badriah Hassan, Soo Choon Tan, Ahmad Kashfi Ab Rahman, Lee Lee Low, Wan Nazirah Wan Yusuf
BACKGROUND/AIM: Nevirapine is a reverse-transcriptase inhibitor widely used in combination therapy to treat HIV infection. Nevirapine is extensively metabolized in the liver and CYP2B6 is mainly responsible for oxidation of 3-hydroxynevirapine (3-OH NVP). This study aims to explore CYP2B6 activity by measuring 2-hydroxynevirapine (2-OH NVP) and 3-OH NVP in plasma and to identify factors associated with nevirapine pharmacokinetic parameters. MATERIALS AND METHODS: A total of 112 patients were recruited and treated with nevirapine-based antiretroviral therapy...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28081190/inflammatory-activity-on-natalizumab-predicts-short-term-but-not-long-term-disability-in-multiple-sclerosis
#15
Joel Raffel, Arie R Gafson, Samer Dahdaleh, Omar Malik, Brynmor Jones, Richard Nicholas
BACKGROUND: In people with multiple sclerosis treated with interferon-beta or glatiramer acetate, new MRI lesions and relapses during the first year of treatment predict a poor prognosis. OBJECTIVE: To study this association in those receiving natalizumab. METHODS: Data were collected on relapses, new MRI activity, and Modified Rio Score after initiation of natalizumab in an observational cohort of 161 patients with high baseline disability...
2017: PloS One
https://www.readbyqxmd.com/read/28080998/determination-of-oxycodone-and-its-major-metabolites-noroxycodone-and-oxymorphone-by-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry-in-plasma-and-urine-application-to-real-cases
#16
Flaminia Pantano, Stefano Brauneis, Alexandre Forneris, Roberta Pacifici, Enrico Marinelli, Chrystalla Kyriakou, Simona Pichini, Francesco Paolo Busardò
BACKGROUND: Oxycodone is a narcotic drug widely used to alleviate moderate and severe acute and chronic pain. Variability in analgesic efficacy could be explained by inter-subject variations in plasma concentrations of parent drug and its active metabolite, oxymorphone. To evaluate patient compliance and to set up therapeutic drug monitoring (TDM), an ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) assay was developed and validated for the parent drug and its major metabolites noroxycodone and oxymorphone...
January 12, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28080264/convergent-and-criterion-validity-of-the-cogstate-computerized-brief-battery-cognitive-assessment-in-women-with-and-without-breast-cancer
#17
Sunita K Patel, Adrienne M Meier, Nathaniel Fernandez, Tracy T Y Lo, Colleen Moore, Nicole Delgado
OBJECTIVE: Computerized tests have increasingly garnered interest for assessing cognitive functioning due to their potential logistical and financial advantages over traditional 'pencil and-paper' neuropsychological tests. However, psychometric information is necessary to guide decisions about their clinical and research utility with varied populations. We explored the convergent construct validity and criterion validity of the CogState computerized tests in breast cancer survivors, a group known to present with mostly mild, subtle cognitive dysfunction...
January 12, 2017: Clinical Neuropsychologist
https://www.readbyqxmd.com/read/28080262/processing-speed-test-validation-of-a-self-administered-ipad-%C3%A2-based-tool-for-screening-cognitive-dysfunction-in-a-clinic-setting
#18
Stephen M Rao, Genna Losinski, Lyla Mourany, David Schindler, Bernadett Mamone, Christine Reece, Danielle Kemeny, Sridar Narayanan, Deborah M Miller, Francois Bethoux, Robert A Bermel, Richard Rudick, Jay Alberts
BACKGROUND: Cognitive dysfunction is common in multiple sclerosis (MS) patients and has important consequences for daily activities, yet, unlike motor function, is not routinely assessed in the clinic setting. We developed the Processing Speed Test (PST), a self-administered iPad(®)-based tool to measure MS-related deficits in processing speed. OBJECTIVE: To determine whether the PST is valid for screening cognitive dysfunction by comparing it to the paper-and-pencil Symbol Digit Modalities Test (SDMT)...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28080250/no-evidence-of-disease-activity-in-patients-receiving-daclizumab-versus-intramuscular-interferon-beta-1a-for-relapsing-remitting-multiple-sclerosis-in-the-decide-study
#19
Ludwig Kappos, Eva Havrdova, Gavin Giovannoni, Bhupendra O Khatri, Susan A Gauthier, Steven J Greenberg, Xiaojun You, Ping Wang, Giorgio Giannattasio
BACKGROUND: No evidence of disease activity (NEDA) is a composite endpoint being increasingly applied as an outcome measure in clinical trials as well as proposed for individual therapeutic decisions in multiple sclerosis (MS). OBJECTIVE: Assess the proportion of patients with relapsing-remitting MS achieving NEDA in the DECIDE study of daclizumab 150 mg subcutaneous versus intramuscular interferon beta-1a 30 µg for 96-144 weeks. METHODS: NEDA was defined as no relapses, no onset of 12-week confirmed disability progression (CDP), no new/newly enlarging T2 hyperintense lesions (NET2), and no gadolinium-enhancing (Gd(+)) lesions...
December 1, 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28080186/satisfaction-with-sex-life-in-sexually-active-heterosexual-couples-dealing-with-breast-cancer-a-nationwide-longitudinal-study
#20
Nina Rottmann, Dorte Gilså Hansen, René dePont Christensen, Mariët Hagedoorn, Morten Frisch, Anne Nicolaisen, Niels Kroman, Henrik Flyger, Christoffer Johansen
BACKGROUND: A breast cancer (BC) diagnosis can profoundly affect the sex life of patient and partner within a couple. The purpose of the present study is to examine whether individual and partner sexual functioning, affectionate behavior, emotional closeness and depressive symptoms are associated with change over time in satisfaction with sex life of sexually active heterosexual couples dealing with BC and to explore whether the associations differ between patients and partners after adjustment for basic sociodemographic characteristics, comorbidity and BC treatment...
January 12, 2017: Acta Oncologica
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