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https://www.readbyqxmd.com/read/28735301/effect-of-faecal-calprotectin-assay-variability-on-the-management-of-inflammatory-bowel-disease-and-potential-role-of-faecal-s100a12
#1
Simon John Whitehead, Clare Ford, Rousseau Mariano Gama, Ala Ali, Brian McKaig, Jenna Louise Waldron, Helen Steed, Matthew James Brookes
AIMS: To prospectively evaluate whether between-assay variability of different faecal calprotectin (f-Cp) assays influences diagnostic accuracy for inflammatory bowel disease (IBD) in a cohort of patients with confirmed IBD and irritable bowel syndrome (IBS). To also evaluate the diagnostic accuracy of faecal S100A12 (f-S100A12) against f-Cp in the same patient cohort and assess whether f-S100A12 offers additional diagnostic value. METHODS: F-Cp using four commercially available f-Cp assays, f-S100A12 and blood biomarkers were measured in patients, recruited from the local IBD clinic, who had established IBS or active ulcerative colitis (UC) and Crohn's disease (CD)...
July 22, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28735269/patient-family-agreement-on-values-and-preferences-for-life-sustaining-treatment-results-of-a-multicentre-observational-study
#2
Amane Abdul-Razzak, Daren K Heyland, Jessica Simon, Sunita Ghosh, Andrew G Day, John J You
OBJECTIVES: To quantify agreement between patients and their family members on their own values and preferences for use or non-use of life-sustaining treatments for the patient. METHODS: Hospitalised patients aged 55 years or older with advanced pulmonary, cardiac, liver disease or metastatic cancer or aged 80 years or older from medical wards at 16 Canadian hospitals and their family members completed a questionnaire including eight items about values related to life-sustaining treatment and a question about preferences for life-sustaining treatments...
July 22, 2017: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/28735259/observational-study-on-the-palatability-and-tolerability-of-oral-prednisolone-and-oral-dexamethasone-in-children-in-saudi-arabia-and-the-uk
#3
Fahad Aljebab, Mofadhi Alanazi, Imti Choonara, Sharon Conroy
BACKGROUND: Short-course oral corticosteroids are routinely used to treat acute asthma and croup. We evaluated their tolerability and palatability in Saudi Arabian (SA) and UK children. METHODS: Prospective observational/interview study (3 months in each country). Palatability was evaluated using a 5-point facial Hedonicscale and tolerability by direct questioning of patient/parents. RESULTS: In SA, of 122 patients (2-10 years) recruited, 52 received prednisolone base tablets, 37 prednisolone sodium phosphate syrup and 33 received dexamethasone elixir...
July 22, 2017: Archives of Disease in Childhood
https://www.readbyqxmd.com/read/28735214/indazole-based-ligands-for-estrogen-related-receptor-%C3%AE-as-potential-anti-diabetic-agents
#4
Raymond J Patch, Hui Huang, Sharmila Patel, Wing Cheung, Guozhang Xu, Bao-Ping Zhao, Derek A Beauchamp, Dionisios Rentzeperis, John G Geisler, Hossein B Askari, Jianying Liu, Jyotsna Kasturi, Meghan Towers, Micheal D Gaul, Mark R Player
Estrogen-related receptor α (ERRα) is an orphan nuclear receptor that has been functionally implicated in the regulation of energy homeostasis. Herein is described the development of indazole-based N-alkylthiazolidenediones, which function in biochemical assays as selective inverse agonists against this receptor. Series optimization provided several potent analogues that inhibited the recruitment of a co-activator peptide fragment in vitro (IC50s < 50 nM) and reduced fasted circulating insulin and triglyceride levels in a sub-chronic pre-diabetic rat model when administered orally (10 mg/kg)...
July 14, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28735149/smoking-relapse-situations-among-a-community-recruited-sample-of-spanish-daily-smokers
#5
Bárbara Piñeiro, Ana López-Durán, Carmela Martínez-Vispo, Elena Fernández Del Río, Úrsula Martínez, Rubén Rodríguez-Cano, M Carmen Míguez, Elisardo Becoña
INTRODUCTION: Relapse is a common factor within the behavior change process. However, there is scarce and limited knowledge of smoking relapse situations in population-based samples. The aim of this study was to identify smoking relapse situations among a sample of Spanish relapsers from the general population. METHODS: A sample of 775 relapsers was recruited among the general population using a snowball method. Participants completed a survey including sociodemographic, smoking-related and psychopathology variables...
July 14, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28735111/screening-disrupted-molecular-functions-and-pathways-associated-with-clear-cell-renal-cell-carcinoma-using-gibbs-sampling
#6
Ning Nan, Qi Chen, Yu Wang, Xu Zhai, Chuan-Ce Yang, Bin Cao, Tie Chong
OBJECTIVE: To explore the disturbed molecular functions and pathways in clear cell renal cell carcinoma (ccRCC) using Gibbs sampling. METHODS: Gene expression data of ccRCC samples and adjacent non-tumor renal tissues were recruited from public available database. Then, molecular functions of expression changed genes in ccRCC were classed to Gene Ontology (GO) project, and these molecular functions were converted into Markov chains. Markov chain Monte Carlo (MCMC) algorithm was implemented to perform posterior inference and identify probability distributions of molecular functions in Gibbs sampling...
July 13, 2017: Computational Biology and Chemistry
https://www.readbyqxmd.com/read/28735110/blinded-sample-size-recalculation-in-clinical-trials-incorporating-historical-data
#7
Katharina Hees, Meinhard Kieser
Recruiting sufficient patients within an acceptable time horizon is an issue for most clinical trials and is especially challenging in the field of rare diseases. It is therefore an attractive option to include historical data from previous (pilot) trials in the current study thus reducing the recruitment burden. In clinical trials with binary endpoint, the required sample size does not only depend on the type I error rate, the power, and the treatment group difference but additionally on the overall event rate...
July 19, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28735100/attention-modulates-specific-motor-cortical-circuits-recruited-by-transcranial-magnetic-stimulation
#8
J L Mirdamadi, L Y Suzuki, S K Meehan
Skilled performance and acquisition is dependent upon afferent input to motor cortex. The present study used short-latency afferent inhibition (SAI) to probe how manipulation of sensory afference by attention affects different circuits projecting to pyramidal tract neurons in motor cortex. SAI was assessed in the first dorsal interosseous muscle while participants performed a low or high attention demanding visual detection task. SAI was evoked by preceding a suprathreshold transcranial magnetic stimulus with electrical stimulation of the median nerve at the wrist...
July 19, 2017: Neuroscience
https://www.readbyqxmd.com/read/28735037/injection-drug-use-and-overdose-among-young-adults-who-use-prescription-opioids-non-medically
#9
Elliott J Liebling, Traci C Green, Scott E Hadland, Brandon D L Marshall
INTRODUCTION: Non-medical prescription opioid (NMPO) use is a critical public health problem in the United States, with 2.1 million new initiates annually. Young adult NMPO users are at high risk for initiating injection drug use. We assessed correlates of injection drug use among young adult NMPO users in Rhode Island, a state heavily impacted by opioid overdose. METHODS: We used data from the Rhode Island Young Adult Prescription Drug Study (RAPiDS), which recruited 199 residents aged 18-29 who reported past-30-day NMPO use (65...
July 18, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28735032/a-prospective-study-of-breastfeeding-intentions-of-healthy-weight-and-overweight-women-as-predictors-of-breastfeeding-outcomes
#10
Susan J de Jersey, Kimberley Mallan, Justine Forster, Lynne A Daniels
OBJECTIVE: Women with a higher BMI are at increased risk of breastfeeding for a shorter duration, however it is unclear if weight status itself or other factors such as feeding intentions are responsible for early breastfeeding cessation. The aim of this study was determine the influence of maternal pre-pregnancy weight status on infant feeding intentions during pregnancy using a validated scale and assess whether high intentions to exclusively breastfeed measured during pregnancy predicted feeding mode at discharge and at 4 months postpartum in both healthy weight (Hwt) (BMI< 25kg/m(2)) and overweight (Owt)(BMI > 25kg/m(2)) women...
July 5, 2017: Midwifery
https://www.readbyqxmd.com/read/28735029/peptide-modification-of-polyimide-insulated-microwires-towards-improved-biocompatibility-through-reduced-glial-scarring
#11
Sangita Sridar, Matthew A Churchward, Vivian K Mushahwar, Kathryn G Todd, Anastasia L Elias
The goal of this study is to improve the integration of implanted microdevices with tissue in the central nervous system (CNS). The long-term utility of neuroprosthetic devices implanted in the CNS is affected by the formation of a scar by resident glial cells (astrocytes and microglia), limiting the viability and functional stability of the devices. Reduction in the proliferation of glial cells is expected to enhance the biocompatibility of devices. We demonstrate the modification of polyimide-insulated microelectrodes with a bioactive peptide KHIFSDDSSE...
July 19, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28734956/fast-carotid-artery-mr-angiography-with-compressed-sensing-based-three-dimensional-time-of-fight-sequence
#12
Bo Li, Hao Li, Li Dong, Guofu Huang
OBJECTIVE: In this study, we sought to investigate the feasibility of fast carotid artery MR angiography (MRA) by combining three-dimensional time-of-flight (3D TOF) with compressed sensing method (CS-3D TOF). MATERIALS AND METHODS: A pseudo-sequential phase encoding order was developed for CS-3D TOF to generate hyper-intense vessel and suppress background tissues in under-sampled 3D k-space. Seven healthy volunteers and one patient with carotid artery stenosis were recruited for this study...
July 19, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28734930/bidirectional-allosteric-interactions-between-cannabinoid-receptor-1-cb1-and-dopamine-receptor-2-long-d2l-heterotetramers
#13
Amina M Bagher, Robert B Laprairie, J Thomas Toguri, Melanie E M Kelly, Eileen M Denovan-Wright
Type 1 cannabinoid (CB1) and dopamine 2 long form (D2L) receptors can physically interact to form heteromers that display unique pharmacology in vitro compared to homomeric complexes. Co-expression of CB1 and D2L and co-application of CB1 and D2 agonists increases cAMP levels while administration of either agonist alone decreases cAMP levels. To understand the observed co-agonist response, our first goal of the current study was to define the stoichiometry of CB1/D2L/Gα protein complexes. Using bioluminescence resonance energy transfer 2 (BRET(2)), we confirmed that, CB1 homodimers, D2L homodimers, and CB1/D2L heteromers are formed...
July 19, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28734908/why-transition-risk-to-psychosis-is-not-declining-at-the-oasis-ultra-high-risk-service-the-hidden-role-of-stable-pretest-risk-enrichment
#14
P Fusar-Poli, E Palombini, C Davies, D Oliver, I Bonoldi, V Ramella-Cravaro, P McGuire
BACKGROUND: The reason for declining risk to psychosis across individuals assessed and meeting Ultra High Risk (UHR) criteria is still unclear. No studies have investigated the potential substantial role of the underlying risk enrichment across all the individuals undergoing an UHR assessment. METHODS: Cohort study including all non-psychotic subjects who were assessed on suspicion of psychosis risk by the OASIS UHR service in the period 2001 to 2015. Posttest (after UHR assessment) and pretest risk (before UHR assessment) of psychosis were stratified and compared across three time periods (2001-2005, 2006-2010, 2011-2015) with Cox analysis and modulating factors were investigated...
July 19, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28734899/strategies-to-develop-endogenous-stem-cell-recruiting-bioactive-materials-for-tissue-repair-and-regeneration
#15
Settimio Pacelli, Sayantani Basu, Jonathan Whitlow, Aparna R Chakravarti, Francisca Acosta, Arushi Varshney, Saman Modaresi, Cory Berkland, Arghya Paul
A leading strategy in tissue engineering is the design of biomimetic scaffolds that stimulate the body's repair mechanisms through the recruitment of endogenous stem cells to sites of injury. Approaches that employ the use of chemoattractant gradients to guide tissue regeneration without external cell sources are favored over traditional cell-based therapies that have limited potential for clinical translation. Following this concept, bioactive scaffolds can be engineered to provide a temporally and spatially controlled release of biological cues, with the possibility to mimic the complex signaling patterns of endogenous tissue regeneration...
July 19, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28734864/reasons-for-seeking-clinical-care-for-lower-urinary-tract-symptoms-a-mixed-methods-study
#16
James W Griffith, Emily E Messersmith, Brenda W Gillespie, Jonathan B Wiseman, Kathryn E Flynn, Ziya Kirkali, John W Kusek, Tamara Bavendam, David Cella, Karl J Kreder, Jasmine J Nero, Maria E Corona, Catherine S Bradley, Kimberly S Kenton, Brian T Helfand, Robert M Merion, Kevin P Weinfurt
PURPOSE: The primary objective of this study was to evaluate reasons for seeking care among men and women with lower urinary tract symptoms (LUTS). METHODS: Participants were recruited from urology and urogynecology clinics, and the community. The sample was enriched with persons expected to have abnormal or diminished bladder sensations (e.g., participants with lower back surgery, participants aged 65+). In-person interviews were conducted, beginning with an open-ended assessment of urinary symptoms and associated bother, followed by more directed questions, including reasons for seeking or not seeking treatment...
July 19, 2017: Journal of Urology
https://www.readbyqxmd.com/read/28734862/respiratory-infections-and-antibiotic-usage-in-common-variable-immunodeficiency
#17
Johannes M Sperlich, Bodo Grimbacher, Sarita Workman, Tanzina Haque, Suranjith L Seneviratne, Siobhan O Burns, Veronika Reiser, Werner Vach, John R Hurst, David M Lowe
BACKGROUND: Patients with common variable immunodeficiency (CVID) suffer frequent respiratory tract infections despite immunoglobulin replacement and are prescribed significant quantities of antibiotics. The clinical and microbiological nature of these exacerbations, the symptomatic triggers to take antibiotics, and the response to treatment have not been previously investigated. OBJECTIVES: To describe the nature, frequency, treatment, and clinical course of respiratory tract exacerbations in patients with CVID and to describe pathogens isolated during respiratory tract exacerbations...
July 19, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28734861/low-food-allergy-prevalence-despite-delayed-introduction-of-allergenic-foods-data-from-the-gusto-cohort
#18
Elizabeth Huiwen Tham, Bee Wah Lee, Yiong Huak Chan, Evelyn Xiu Ling Loo, Jia Ying Toh, Anne Goh, Oon Hoe Teoh, Fabian Yap, Kok Hian Tan, Keith M Godfrey, Mary Foong Fong Chong, Hugo P S Van Bever, Yap Seng Chong, Lynette Pei-Chi Shek
BACKGROUND: There is mounting evidence that early introduction of allergenic food decreases the risk of food allergy development, especially in high-risk infants with eczema. However, there is a lack of data to suggest whether this association holds true in Asian populations. OBJECTIVE: To investigate the relationship between the timing of introduction of allergenic foods and food allergy outcomes in infants in the Growing Up in Singapore Towards healthy Outcomes (GUSTO) study...
July 19, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28734816/glaucoma-screening-in-nepal-cup-to-disc-estimate-with-standard-mydriatic-fundus-camera-compared-to-portable-non-mydriatic-camera
#19
Sarah E Miller, Suman Thapa, Alan L Robin, Leslie M Niziol, Pradeep Y Ramulu, Maria A Woodward, Indira Paudyal, Ian Pitha, Tyson N Kim, Paula Anne Newman-Casey
PURPOSE: To compare cup to disc ratio (CDR) measurements from images taken with a portable, 45° non-mydriatic fundus camera to images from a traditional table-top mydriatic fundus camera. DESIGN: Prospective, cross sectional, comparative instrument validation study. METHODS: materials-methods SETTING: Clinic-based. STUDY POPULATION: 422 eyes of 211 subjects were recruited from the Tilganga Institute of Ophthalmology (Kathmandu, Nepal)...
July 19, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28734812/quantitative-retinal-vascular-changes-in-obstructive-sleep-apnea
#20
Jessica Y Tong, Mojtaba Golzan, Dana Georgevsky, Jonathan P Williamson, Stuart L Graham, Claude S Farah, Clare L Fraser
PURPOSE: To examine the relationship between both static and dynamic retinal vascular caliber and the severity of obstructive sleep apnea (OSA). DESIGN: Prospective cross-sectional study. METHODS: Adult patients undergoing diagnostic polysomnography studies at a private Australian university teaching hospital were recruited. OSA severity was defined by the apnea-hypopnea index (AHI): severe >30, moderate >15-30, mild 5-15, and controls <5...
July 19, 2017: American Journal of Ophthalmology
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