10,893,718 results match your criteria Research in Gerontological Nursing [Journal]

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Comparison of level of cognitive process between case-based items and non-case-based items of the interuniversity progress test of medicine in the Netherlands.

J Educ Eval Health Prof 2018 12;15:28. Epub 2018 Dec 12.

Department of Cardiology, Catharina Hospital, and Department of Educational Development and Research, and Faculty of Health, Medicine and Life Sciences, Maastricht University, The Netherlands.

Purpose: It is assumed that case-based questions require higher order cognitive processing, whereas questions that are not case-based require lower order cognitive processing. In this study, we investigated to what extent case-based questions and questions that are not case-based, relate to Bloom's taxonomy.

Methods: In this article, 4800 questions of the Progress Test were classified whether it was a case-based question and the level of Bloom's taxonomy. Read More

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December 2018
4 Reads

Genome-wide association study of degenerative mitral valve disease in Maltese dogs.

J Vet Sci 2018 Dec 4. Epub 2018 Dec 4.

Department of Veterinary Internal Medicine, College of Veterinary Medicine, Konkuk University, Seoul, 05030, Korea.

Genome-wide association study (GWAS) is a powerful tool for identifying the genetic causes of various diseases. This study conducted to identify genomic variation in Maltese dog genomes associated with degenerative mitral valve disease (DMVD) development and evaluate the association of each biological condition with DMVD in Maltese dogs. DNA was extracted from blood samples obtained from 48 Maltese dogs (32 with DMVD and 16 controls). Read More

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December 2018
1 Read

Association between Dietary Glycemic Index and Excess Weight in Pregnant Women in the First Trimester of Pregnancy.

Rev Bras Ginecol Obstet 2018 Dec 12. Epub 2018 Dec 12.

Group of Research in Nutrition and Chronic Diseases, Universidade Estadual do Ceará, Fortaleza, CE, Brazil.

Objective:  To assess the association between dietary glycemic index (GI) and excess weight in pregnant women in the first trimester of pregnancy.

Methods:  A cross-sectional study in a sample of 217 pregnant women was conducted at the maternal-fetal outpatient clinic of the Hospital Geral de Fortaleza, Fortaleza, state of Ceará, Brazil, for routine ultrasound examinations in the period between 11 and 13 weeks + 6 days of gestation. Weight and height were measured and the gestational body mass index (BMI) was calculated. Read More

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December 2018
6 Reads

Intervertebral disc herniation in two coatis (Nasua nasua) and postoperative laminectomy membrane formation.

Tierarztl Prax Ausg K Kleintiere Heimtiere 2018 Oct 12;46(5):330-336. Epub 2018 Dec 12.

Magnetic resonance imaging revealed spinal cord compression due to intervertebral disc herniation of Hansen type I and II in the thoracolumbar vertebral column in two middle-aged coatis () with chronic progressive paraparesis. Surgical treatment included hemilaminectomy and partial corpectomy in one and dorsal laminectomy in the other coati. Both coatis recovered well after surgery. Read More

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October 2018
3 Reads

[Diagnostic value of the BRAF variant V595E in urine samples, smears and biopsies from canine transitional cell carcinoma].

Tierarztl Prax Ausg K Kleintiere Heimtiere 2018 Oct 12;46(5):289-295. Epub 2018 Dec 12.

Objective: Transitional cell carcinoma (TCC) is the most common malignant tumour of the canine urinary tract. Previously, the mutation of the BRAF gene V595E was identified in approximately 85 % of canine TCC cases by DNA sequencing of TCC tumour cells, both in frozen and paraffin-embedded tissue sections, as well as in urine. The objective of this study was to establish these methods in cytological smears and to investigate the prevalence of BRAF mutation V595E in canine TCC in our cohort of patients. Read More

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October 2018
1 Read

A Female Patient with Xq28 Microduplication Presenting with Myotubular Myopathy, Confirmed with a Custom-Designed X-array.

Neuropediatrics 2018 Dec 12. Epub 2018 Dec 12.

Department of Medical Genetics, Medical School, National and Kapodistrian University of Athens, Athens, Greece.

X-linked myotubular myopathy (XLMTM) is a rare inherited neuromuscular disorder associated with mutations in the gene on the Xq28 region. We report a severely affected girl with XLMTM, caused by maternally inherited 661 kb Xq28 microduplication identified by chromosomal microarray analysis and confirmed also on DNA from muscle biopsy with a custom-designed X-chromosome-specific microarray. X-inactivation analysis revealed a skewed inactivation pattern on the proband's muscle biopsy. Read More

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December 2018

A multimodal (FACILE) classification for optical diagnosis of inflammatory bowel disease associated neoplasia.

Endoscopy 2018 Dec 12. Epub 2018 Dec 12.

Division of Gastroenterology, HSK Hospital, Wiesbaden, Germany.

Background:  Characterization of colonic lesions in inflammatory bowel disease (IBD) remains challenging. We developed an endoscopic classification of visual characteristics to identify colitis-associated neoplasia using multimodal advanced endoscopic imaging (Frankfurt Advanced Chromoendoscopic IBD LEsions [FACILE] classification).

Methods:  The study was conducted in three phases: 1) development - an expert panel defined endoscopic signs and predictors of dysplasia in IBD and, using multivariable logistic regression created the FACILE classification; 2) validation - using 60 IBD lesions from an image library, two assessments of diagnostic accuracy for neoplasia were performed and interobserver agreement between experts using FACILE was determined; 3) reproducibility - the reproducibility of the FACILE classification was tested in gastroenterologists, trainees, and junior doctors after completion of a training module. Read More

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December 2018

Health Information Exchange in Emergency Medical Services.

Appl Clin Inform 2018 Oct 12;9(4):884-891. Epub 2018 Dec 12.

The Warren Alpert Medical School, Brown University, Providence, Rhode Island, United States.

Background:  The Office of the National Coordinator for Health Information Technology has outlined the benefits of health information exchange in emergency medical services (EMSs) according to the model-, , , -developed in collaboration with the California Emergency Medical Services Authority.

Objective:  This scoping review aims to identify and characterize progress toward the adoption of prehospital health information exchange, as reported in the peer-reviewed literature.

Methods:  A structured review of literature in MEDLINE-indexed journals was conducted using the "Electronic Health Records" topic-specific query, the "Emergency Medical Services" Medical Subject Headings descriptor, and a prehospital identifier. Read More

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October 2018
1 Read

Regulation of ATR activity via the RNA polymerase II associated factors CDC73 and PNUTS-PP1.

Nucleic Acids Res 2018 Dec 12. Epub 2018 Dec 12.

Department of Radiation Biology, Institute for Cancer Research, Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.

Ataxia telangiectasia mutated and Rad3-related (ATR) kinase is a key factor activated by DNA damage and replication stress. An alternative pathway for ATR activation has been proposed to occur via stalled RNA polymerase II (RNAPII). However, how RNAPII might signal to activate ATR remains unknown. Read More

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December 2018

Applied Institutional Approaches for the Evaluation and Management of Zoonoses in Contemporary Laboratory Animal Research Facilities.

ILAR J 2018 Dec 12. Epub 2018 Dec 12.

Department of Population Health, University of Georgia College of Veterinary Medicine, Athens, Georgia.

Zoonoses, diseases transmitted between animals and humans, have been a concern in laboratory animal medicine for decades. Exposure to zoonotic organisms not only poses health risks to personnel and research animals but may also affect research integrity. Early laboratory animal programs were ineffective at excluding and preventing transmission of zoonotic diseases: the health status of the animals were often unknown, endemic diseases occurred frequently, housing conditions were less controlled, and veterinary care programs were decentralized. Read More

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December 2018

Assessment of Bowel Inflammation and Strictures by Magnetic Resonance Enterography in Long-term Crohn´s Disease.

J Crohns Colitis 2018 Dec 12. Epub 2018 Dec 12.

Department of Radiology, Akershus University Hospital, Lørenskog, Norway.

Background: Crohns disease (CD) is a chronic inflammation in the gut that often progresses to fibrosis. Magnetic Resonance Enterography (MRE) is an important diagnostic tool in evaluating CD. We aimed to assess the prevalence of inflammation and stricturing disease in patients with long-term CD and investigate associations with clinical factors. Read More

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December 2018

Pancreatic Islet Transplantation in Humans: Recent Progress and Future Directions.

Endocr Rev 2018 Dec 12. Epub 2018 Dec 12.

Division of Metabolism, Endocrinology, and Nutrition, Department of Medicine, University of Washington School of Medicine, Seattle, WA.

Pancreatic islet transplantation has become an established approach to β-cell replacement therapy for the treatment of insulin deficient diabetes. Recent progress in techniques for islet isolation, islet culture, and peri-transplant management of the islet transplant recipient have resulted in substantial improvements in metabolic and safety outcomes for patients. For patients requiring total or sub-total pancreatectomy for benign disease of the pancreas, isolation of islets from the diseased pancreas with intrahepatic transplantation of autologous islets can prevent or ameliorate post-surgical diabetes, and for patients previously experiencing painful recurrent acute or chronic pancreatitis, quality-of-life is substantially improved. Read More

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December 2018
1 Read

Altered sleep architecture, rapid eye movement (REM) sleep, and neural oscillation in a mouse model of human chromosome 16p11.2 microdeletion.

Sleep 2018 Dec 12. Epub 2018 Dec 12.

Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, University of Southern California, Los Angeles, CA.

Sleep abnormalities are common among children with neurodevelopmental disorders. The human chr16p11.2 microdeletion is associated with a range of neurological and neurobehavioral abnormalities. Read More

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December 2018
2 Reads

Household transmission of seasonal influenza from HIV-infected and -uninfected individuals in South Africa, 2013-2014.

J Infect Dis 2018 Dec 12. Epub 2018 Dec 12.

Centre for Respiratory Diseases and Meningitis, National Institute for Communicable Diseases of the National Health Laboratory Service, Johannesburg, South Africa.

Background: Differential transmission from HIV-infected compared to HIV-uninfected individuals may impact influenza burden. We estimated the household secondary infection risk (SIR) and serial interval (SI) for influenza transmission from HIV-infected and HIV-uninfected index cases and identified associated factors.

Methods: Index cases were the first symptomatic person in a household with influenza-like illness, testing influenza positive on real-time reverse transcription polymerase chain reaction (rRT-PCR). Read More

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December 2018

Functional expansion of a TCA cycle operon mRNA by a 3' end-derived small RNA.

Nucleic Acids Res 2018 Dec 12. Epub 2018 Dec 12.

RNA Biology Group, Institute for Molecular Infection Biology, University of Würzburg, D-97080 Würzburg, Germany.

Global RNA profiling studies in bacteria have predicted the existence of many of small noncoding RNAs (sRNAs) that are processed off mRNA 3' ends to regulate other mRNAs via the RNA chaperones Hfq and ProQ. Here, we present targets of SdhX (RybD), an Hfq-dependent sRNA that is generated by RNase E mediated 3' processing of the ∼10 000-nt mRNA of the TCA cycle operon sdhCDAB-sucABCD in enteric bacteria. An in silico search predicted ackA mRNA, which encodes acetate kinase, as a conserved primary target of SdhX. Read More

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December 2018

A population-based cohort study to evaluate the effectiveness of lung cancer screening using low-dose CT in Hitachi city, Japan.

Jpn J Clin Oncol 2018 Dec 12. Epub 2018 Dec 12.

Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Shinjuku-ku, Tokyo, Japan.

Objectives: To evaluate the effectiveness of lung cancer screening using low-dose computed tomography for the general population, we conducted a retrospective cohort study of screening for participants among Hitachi residents.

Materials And Methods: Citizens aged 50-74 who underwent low-dose computed tomography screening at least once during 1998-2006 were defined as the computed tomography group, and those who underwent X-ray screening at least once during the same period, but did not receive low-dose computed tomography screening throughout the follow-up period, were defined as the XP group. We investigated the lung cancer incidence rate, mortality rate and all-cause mortality rate for both groups from the first lung cancer screening to the end of 2012. Read More

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December 2018

Capsular polysaccharide in Mycoplasma mycoides is a virulence factor.

J Infect Dis 2018 Dec 12. Epub 2018 Dec 12.

J. Craig Venter Institute, Rockville, MD USA.

Capsular polysaccharides have been confirmed to be an important virulence trait in many different Gram-positive and Gram-negative bacteria. Similarly, they are proposed to be virulence traits in minimal Mycoplasma that cause disease in humans and animals. In this study, goats were infected with the caprine pathogen Mycoplasma mycoides subsp. Read More

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December 2018

The Gly385(388)Arg Polymorphism of the FGFR4 Receptor regulates Hepatic Lipogenesis under healthy Diet.

J Clin Endocrinol Metab 2018 Dec 12. Epub 2018 Dec 12.

Department of Internal Medicine, Division of Endocrinology, Diabetology, Vascular Disease, Nephrology and Clinical Chemistry, University of Tübingen, Germany.

Context: The effect of a lifestyle intervention to reduce liver fat content in nonalcoholic fatty liver disease in humans is influenced by genetics. We hypothesized that the functionally active amino acid exchange in humans Gly388Arg (mouse homologue: Gly385Arg) in the fibroblast growth factor receptor 4 (FGFR4), which regulates bile acid, lipid and glucose metabolism, may determine the dynamics of hepatic lipid accumulation and insulin sensitivity in humans. Mechanisms of this substitution were studied in mice under normal chow and high-fat diet. Read More

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December 2018
1 Read

Role of electronic patient reported safety incidents in improving patient safety and care.

Int J Qual Health Care 2018 Dec 12. Epub 2018 Dec 12.

Graduate Institute of Bioinformatics, Taipei Medical University, Taipei, Taiwan.

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December 2018

Comparison of PED and FRED Flow Diverters for Internal Carotid Artery Aneurysms: A Propensity Score-Matched Cohort Study.

Neurosurgery 2018 Dec 12. Epub 2018 Dec 12.

Department of Neurology, Paracelsus Medical University, Salzburg, Austria.

Background: Flow diversion has become an accepted endovascular treatment modality for intracranial aneurysms. Studies comparing different types of flow diverters are currently lacking.

Objective: To perform a propensity score-matched cohort study comparing the Pipeline Embolization Device (PED; Medtronic, Dublin, Ireland) and Flow Redirection Endoluminal Device (FRED; MicroVention, Aliso Viejo, California). Read More

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December 2018
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The Cerebral Cortex is Bisectionally Segregated into Two Fundamentally Different Functional Units of Gyri and Sulci.

Cereb Cortex 2018 Dec 12. Epub 2018 Dec 12.

Cortical Architecture Imaging and Discovery Lab, Department of Computer Science and Bioimaging Research Center, The University of Georgia, Athens, GA, USA.

The human cerebral cortex is highly folded into diverse gyri and sulci. Accumulating evidences suggest that gyri and sulci exhibit anatomical, morphological, and connectional differences. Inspired by these evidences, we performed a series of experiments to explore the frequency-specific differences between gyral and sulcal neural activities from resting-state and task-based functional magnetic resonance imaging (fMRI) data. Read More

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December 2018

A coordinate-based meta-analysis comparing brain activation between ADHD and total sleep deprivation.

Sleep 2018 Dec 12. Epub 2018 Dec 12.

Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, Rhode Island, USA.

Study Objectives: Sleep disruption is common in attention-deficit-hyperactivity-disorder (ADHD). Likewise, deficits in attention are a hallmark of sleep deprivation in healthy individuals. Whether ADHD and sleep deprivation modulate common, or disparate, neural systems is unknown. Read More

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December 2018

Postimplant biological aortic prosthesis degeneration: challenges in transcatheter valve implants.

Eur J Cardiothorac Surg 2018 Dec 11. Epub 2018 Dec 11.

Department of Cardio-Thoracic Surgery, Maastricht University Medical Centre, Maastricht, Netherlands.

Surgical aortic valve replacement (SAVR) is highly effective and can be achieved with relatively low risk in patients with severe aortic stenosis. Bioprostheses have been used most frequently during the past 60 years. However, the function of biological valves usually declines after 10-15 years from implant when structural valve degeneration occurs often mandating a reoperation once valve dysfunction becomes haemodynamically significant. Read More

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December 2018
3.304 Impact Factor

Diurnal distribution of carbohydrates and fat affects substrate oxidation and adipokine secretion in humans.

Am J Clin Nutr 2018 Dec;108(6):1209-1219

Departments of Clinical Nutrition.

Background: A diet in which fat is mainly eaten in the morning and carbohydrates mainly in the evening (compared with the reverse order) was recently shown to worsen glycemic control in people with prediabetes.

Objective: We investigated the effects of these dietary patterns on energy metabolism, and on the daily profiles of circulating lipids, adipokines, and inflammatory markers.

Design: In a randomized controlled crossover trial, 29 nonobese men (with normal glucose tolerance, n = 18; or impaired fasting glucose/glucose tolerance, n = 11) underwent 2 isocaloric 4-wk diets: 1) carbohydrate-rich meals until 1330 and fat-rich meals between 1630 and 2200 (HC/HF); or 2) the inverse sequence of meals (HF/HC). Read More

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December 2018

Periconceptional intake of folic acid among low-risk women in Canada: summary of a workshop aiming to align prenatal folic acid supplement composition with current expert guidelines.

Am J Clin Nutr 2018 Dec;108(6):1357-1368

School of Nutrition Sciences, University of Ottawa, Ottawa, Ontario, Canada.

The Government of Canada and the Society of Obstetricians and Gynaecologists of Canada both recommend a daily multivitamin supplement containing 400 µg folic acid (FA) for the primary prevention of neural tube defects among low-risk women from before conception and throughout lactation. Prenatal supplements marketed and prescribed in Canada typically exceed the recommended dose, usually providing ≥1000 µg FA/d. This high daily dose, coupled with staple-food FA fortification, has resulted in the observation of very high blood folate concentrations among reproductive-aged women consuming FA-containing supplements. Read More

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December 2018

Validated screening tools for the assessment of cachexia, sarcopenia, and malnutrition: a systematic review.

Am J Clin Nutr 2018 Dec;108(6):1196-1208

Clinical Surgery, University of Edinburgh, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom.

Background: There is great overlap between the presentation of cachexia, sarcopenia, and malnutrition. Distinguishing between these conditions would allow for better targeted treatment for patients.

Objectives: The aim was to systematically review validated screening tools for cachexia, sarcopenia, and malnutrition in adults and, if a combined tool is absent, make suggestions for the generation of a novel screening tool. Read More

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December 2018
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A 12-wk whole-grain wheat intervention protects against hepatic fat: the Graandioos study, a randomized trial in overweight subjects.

Am J Clin Nutr 2018 Dec;108(6):1264-1274

Wageningen University, Division of Human Nutrition, Wageningen, The Netherlands.

Background: Whole-grain wheat (WGW) is described as nutritionally superior to refined wheat (RW) and thus advocated as the healthy choice, although evidence from intervention studies is often inconsistent. The liver, as the central organ in energy metabolism, might be an important target organ for WGW interventions.

Objective: The aim of this study was to investigate the potential benefits of WGW consumption compared with RW consumption on liver health and associated parameters. Read More

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December 2018

An exploration of the longitudinal relation between parental feeding practices and child anthropometric adiposity measures from the West Midlands Active Lifestyle and Healthy Eating in Schoolchildren (WAVES) Study.

Am J Clin Nutr 2018 Dec;108(6):1316-1323

Institute of Applied Health Research, University of Birmingham, Edgbaston, Birmingham, United Kingdom.

Background: Some research suggests that parent or carer feeding practices may influence children's weight patterns, but longitudinal evidence is limited and inconsistent.

Objective: The aim of this study was to investigate the relation between various parent or carer feeding practices when a child is aged 7-8 y and proxy measurements of child adiposity at age 8-9 y (weight status, waist-to-height ratio, and body fat percentage).

Design: The study was a secondary analysis of data from the West Midlands Active Lifestyle and Healthy Eating in Schoolchildren (WAVES) Study comprising a diverse sample of parents and carers and their children from 54 primary schools in the West Midlands, England [n = 774 parent-child dyads (53% of the WAVES study sample)]. Read More

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December 2018

Magnesium status and supplementation influence vitamin D status and metabolism: results from a randomized trial.

Am J Clin Nutr 2018 Dec;108(6):1249-1258

Division of Epidemiology, Department of Medicine, Vanderbilt Epidemiology Center, School of Medicine, Vanderbilt University, Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN.

Background: Previous in vitro and in vivo studies indicate that enzymes that synthesize and metabolize vitamin D are magnesium dependent. Recent observational studies found that magnesium intake significantly interacted with vitamin D in relation to vitamin D status and risk of mortality. According to NHANES, 79% of US adults do not meet their Recommended Dietary Allowance of magnesium. Read More

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December 2018

Severe vitamin D deficiency is a risk factor for renal hyperfiltration.

Am J Clin Nutr 2018 Dec;108(6):1342-1351

Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research.

Background: Vitamin D deficiency is associated with renal progression in chronic kidney disease. Moreover, improvement of clinical outcomes after vitamin D supplementation has been reported in the diabetic and chronic kidney disease population.

Objective: We investigated the association between renal hyperfiltration (RHF) and vitamin D status in a relatively healthy population. Read More

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December 2018

Galapagos Islands Endemic Vertebrates: A Population Genetics Perspective.

Authors:
Philip W Hedrick

J Hered 2018 Dec 12. Epub 2018 Dec 12.

School of Life Sciences, Arizona State University, Tempe, AZ.

The organisms of the Galapagos Islands played a central role in the development of the theory of evolution by Charles Darwin. Examination of the population genetics factors of many of these organisms with modern molecular methods have expanded our understanding of their evolution. Here I provide a perspective on how selection, gene flow, genetic drift, mutation, and inbreeding have contributed to the evolution of six of the iconic Galapagos species; flightless cormorant, pink iguana, marine iguana, Galapagos hawk, giant tortoises, and Darwin's finches. Read More

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December 2018

KDM5D-mediated H3K4 demethylation is required for sexually dimorphic gene expression in mouse embryonic fibroblasts.

J Biochem 2018 Dec 12. Epub 2018 Dec 12.

Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan.

Males and females share the same genetic code, but gene expression profile often displays differences between two sexes. Mouse embryonic fibroblasts (MEFs) have been used to experiment as a useful tool to test gene function. They have also been characterized by gender-based differences in expressed genes such as Y-linked Sry or X-linked Hprt. Read More

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December 2018

In Vivo Imaging With Confirmation by Histopathology for Increased Rigor and Reproducibility in Translational Research: A Review of Examples, Options, and Resources.

ILAR J 2018 Dec 12. Epub 2018 Dec 12.

Department of Radiology, Miller Research Building Molecular Imaging Service Center, Johns Hopkins University, Baltimore, Maryland.

Preclinical noninvasive imaging can be an indispensable tool for studying animal models of disease. In vivo imaging to assess anatomical, functional, and molecular features requires verification by a comparison to the macroscopic and microscopic morphological features, since all noninvasive in vivo imaging methods have much lower resolution than standard histopathology. Comprehensive pathological evaluation of the animal model is underutilized; yet, many institutions have veterinary or human pathologists with necessary comparative pathology expertise. Read More

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December 2018

Health Burden, Instrumental and Emotional Support Adequacy, and Depressive Symptoms in Older Men With HIV.

Gerontologist 2018 Dec 12. Epub 2018 Dec 12.

Virginia Tech Center for Gerontology, Virginia Polytechnic Institute and State University, Blacksburg.

Background And Objectives: Older adults with HIV face greater health burden than HIV-uninfected counterparts. Little is known about resources that might mediate the influence of physiological health burden on psychological well-being. Informed by the stress process model, we assessed the influence of multifaceted health burden indicators on depressive symptoms and evaluated the mediating effects of social support adequacy. Read More

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December 2018

Assessment of drug interaction potential between the HCV direct-acting antiviral agents elbasvir/grazoprevir and the HIV integrase inhibitors raltegravir and dolutegravir.

J Antimicrob Chemother 2018 Dec 12. Epub 2018 Dec 12.

Merck & Co., Inc., Kenilworth, USA.

Background: Elbasvir/grazoprevir is a once-daily fixed-dose combination therapy for the treatment of chronic HCV infection, including HCV/HIV coinfection.

Objectives: To evaluate the pharmacokinetic interaction of elbasvir and grazoprevir with raltegravir or dolutegravir.

Methods: Three open-label trials in healthy adult participants were conducted. Read More

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December 2018
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Associations between general practice characteristics with use of urgent referrals for suspected cancer and endoscopies: a cross-sectional ecological study.

Fam Pract 2018 Dec 12. Epub 2018 Dec 12.

The Health Improvement Institute (THIS), University of Cambridge, Cambridge, UK.

Background: Large variation in measures of diagnostic activity has been described previously between English general practices, but related predictors remain understudied.

Objective: To examine associations between general practice population and characteristics, with the use of urgent referrals for suspected cancer, and use of endoscopy.

Methods: Cross-sectional observational study of English general practices. Read More

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December 2018

Older HIV+ and HIV- Adults Provide Similar Definitions of Successful Aging: A Mixed-Methods Examination.

Gerontologist 2018 Dec 12. Epub 2018 Dec 12.

Department of Psychiatry, University of California, San Diego.

Background And Objective: As HIV-infected (HIV+) individuals age, there is a need to understand successful aging (SA) from the patient perspective. This study compared SA definitions between HIV+ and HIV-uninfected (HIV-) older adults and then examined correlates of SA categories.

Research Design And Methods: Ninety-three HIV+ and 46 HIV- older (aged 50+) adults provided brief definitions of SA, which was examined using content analysis. Read More

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December 2018
1 Read

Effect of losartan and fish oil on plasma IL-6 and mobility in older persons. The ENRGISE Pilot randomized clinical trial.

J Gerontol A Biol Sci Med Sci 2018 Dec 12. Epub 2018 Dec 12.

Department of Biostatistics and Data Science, Division of Public Health Sciences, Wake Forest School of Medicine, Winston-Salem, North Carolina.

Background: Low-grade chronic inflammation, characterized by elevations in plasma Interleukin-6 (IL-6), is an independent risk factor of impaired mobility in older persons. Angiotensin receptor blockers and omega-3 polyunsaturated fatty acids (ω-3) may reduce IL-6 and may potentially improve physical function. To assess the main effects of the angiotensin receptor blocker losartan and ω-3 as fish oil on IL-6 and 400 m walking speed, we conducted the ENRGISE Pilot multicenter randomized clinical trial. Read More

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December 2018
1 Read

Maximum Time Between Tests: A Digital Biomarker to Detect Therapy Compliance and Assess Schedule Quality in Measurement-Based eHealth Systems for Alcohol Use Disorder.

Alcohol Alcohol 2018 Dec 12. Epub 2018 Dec 12.

Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden.

Aim: To evaluate, in a breathalyzer-based eHealth system, whether the time-based digital biomarker 'maximum time between tests' (MTBT) brings valuable information on alcohol consumption patterns as confirmed by correlation with blood phosphatidyl ethanol (PEth), serum carbohydrate deficient transferrin (CDT) and timeline follow-back data.

Method: Data on 54 patients in follow-up for treatment of alcohol use disorder were analysed.

Results: The model of weekly averages of 24-log transformed MTBT adequately described timeline follow-back data (P  <  0. Read More

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December 2018

Molecular phylogenomics of the tribe Shoreeae (Dipterocarpaceae) using whole plastid genomes.

Ann Bot 2018 Dec 12. Epub 2018 Dec 12.

University of Vienna, Department of Botany and Biodiversity Research, Rennweg, Vienna, Austria.

Background And Aims: Phylogenetic relationships within tribe Shoreeae, containing the main elements of tropical forests in Southeast Asia, present a long-standing problem in the systematics of Dipterocarpaceae. Sequencing whole plastomes using next-generation sequencing- (NGS) based genome skimming is increasingly employed for investigating phylogenetic relationships of plants. Here, the usefulness of complete plastid genome sequences in resolving phylogenetic relationships within Shoreeae is evaluated. Read More

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December 2018
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Functionally distinct assembly of vascular plants colonizing alpine cushions suggests their vulnerability to climate change.

Ann Bot 2018 Dec 12. Epub 2018 Dec 12.

Institute of Botany, The Czech Academy of Sciences, Průhonice, Czech Republic.

Background And Aims: Alpine cushion plants can initially facilitate other species during ecological succession, but later on can be negatively affected by their development, especially when beneficiaries possess traits allowing them to overrun their host. This can be reinforced by accelerated warming favouring competitively strong species over cold-adapted cushion specialists. However, little empirical research has addressed the trait-based mechanisms of these interactions. Read More

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December 2018
1 Read

Gene expression models based on transcription factor binding events confer insight into functional cis-regulatory variants.

Bioinformatics 2018 Dec 12. Epub 2018 Dec 12.

Centre for Molecular Medicine and Therapeutics, Department of Medical Genetics, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, Canada.

Motivation: Deciphering the functional roles of cis-regulatory variants is a critical challenge in genome analysis and interpretation. It has been hypothesized that altered transcription factor (TF) binding events are a central mechanism by which cis-regulatory variants impact gene expression levels. However, we lack a computational framework to understand and quantify such mechanistic contributions. Read More

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December 2018

RNAi of Sterol Methyl Transferase1 Reveals its Direct Role in Diverting Intermediates Towards Withanolide/ Phytosterol Biosynthesis in Withania somnifera.

Plant Cell Physiol 2018 Dec 12. Epub 2018 Dec 12.

Laboratory of Aromatic Plants and Chiral Separation, Chemical Sciences Division, CSIR-Central Institute of Medicinal and Aromatic Plants (CIMAP), India.

The medicinal properties of Ashwagandha (Withania somnifera) are accredited to a group of compounds called as withanolides. 24-methylene cholesterol is the intermediate for sterol biosynthesis and a proposed precursor of withanolides biogenesis. But, conversion of 24-methylene cholesterol to withaferin A and other withanolides has not yet been biochemically dissected. Read More

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December 2018

Patterns and Perceptions of Self-Management for Osteoarthritis Pain in African American Older Adults.

Pain Med 2018 Dec 12. Epub 2018 Dec 12.

College of Nursing, The University of Iowa, Iowa City, Iowa, USA.

Objective: To explore and describe older African Americans' patterns and perceptions of managing chronic osteoarthritis pain.

Methods: A convergent parallel mixed-methods design incorporating cross-sectional surveys and individual, semistructured interviews.

Setting: One hundred ten African Americans (≥50 years of age) with clinical osteoarthritis (OA) or provider-diagnosed OA from communities in northern Louisiana were enrolled. Read More

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December 2018

Agnostic Pathway/Gene Set Analysis of Genome-Wide Association Data Identifies Associations for Pancreatic Cancer.

Authors:
Naomi Walsh Han Zhang Paula L Hyland Qi Yang Evelina Mocci Mingfeng Zhang Erica J Childs Irene Collins Zhaoming Wang Alan A Arslan Laura Beane-Freeman Paige M Bracci Paul Brennan Federico Canzian Eric J Duell Steven Gallinger Graham G Giles Michael Goggins Gary E Goodman Phyllis J Goodman Rayjean J Hung Charles Kooperberg Robert C Kurtz Núria Malats Loic LeMarchand Rachel E Neale Sara H Olson Ghislaine Scelo Xiao O Shu Stephen K Van Den Eeden Kala Visvanathan Emily White Wei Zheng Demetrius Albanes Gabriella Andreotti Ana Babic William R Bamlet Sonja I Berndt Ayelet Borgida Marie-Christine Boutron-Ruault Lauren Brais Paul Brennan Bas Bueno-de-Mesquita Julie Buring Kari G Chaffee Stephen Chanock Sean Cleary Michelle Cotterchio Lenka Foretova Charles Fuchs J Michael M Gaziano Edward Giovannucci Michael Goggins Thilo Hackert Christopher Haiman Patricia Hartge Manal Hasan Kathy J Helzlsouer Joseph Herman Ivana Holcatova Elizabeth A Holly Robert Hoover Rayjean J Hung Vladimir Janout Eric A Klein Robert C Kurtz Daniel Laheru I-Min Lee Lingeng Lu Núria Malats Satu Mannisto Roger L Milne Ann L Oberg Irene Orlow Alpa V Patel Ulrike Peters Miquel Porta Francisco X Real Nathaniel Rothman Howard D Sesso Gianluca Severi Debra Silverman Oliver Strobel Malin Sund Mark D Thornquist Geoffrey S Tobias Jean Wactawski-Wende Nick Wareham Elisabete Weiderpass Nicolas Wentzensen William Wheeler Herbert Yu Anne Zeleniuch-Jacquotte Peter Kraft Donghui Li Eric J Jacobs Gloria M Petersen Brian M Wolpin Harvey A Risch Laufey T Amundadottir Kai Yu Alison P Klein Rachael Z Stolzenberg-Solomon

J Natl Cancer Inst 2018 Dec 12. Epub 2018 Dec 12.

Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD.

Background: Genome-wide association studies (GWAS) identify associations of individual single-nucleotide polymorphisms (SNPs) with cancer risk but usually only explain a fraction of the inherited variability. Pathway analysis of genetic variants is a powerful tool to identify networks of susceptibility genes.

Methods: We conducted a large agnostic pathway-based meta-analysis of GWAS data using the summary-based adaptive rank truncated product method to identify gene sets and pathways associated with pancreatic ductal adenocarcinoma (PDAC) in 9040 cases and 12 496 controls. Read More

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December 2018

Examining associations between physical activity and cardiovascular mortality using negative control outcomes.

Int J Epidemiol 2018 Dec 11. Epub 2018 Dec 11.

Charles Perkins Centre, University of Sydney, Sydney, Australia.

Background: The purpose of a negative control is to reproduce a condition that cannot involve the hypothesized causal mechanism, but does involve the same sources of bias and confounding that may distort the primary association of interest. Observational studies suggest physical inactivity is a major risk factor for cardiovascular disease (CVD), although potential sources of bias, including reverse causation and residual confounding, make it difficult to infer causality. The aim was to employ a negative control outcome to explore the extent to which the association between physical activity and CVD mortality is explained by confounding. Read More

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December 2018

Sequential transmission electron microscopy observation of the shape change of gold nanorods under pulsed laser light irradiation.

Microscopy (Oxf) 2018 Dec 12. Epub 2018 Dec 12.

Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka, Nishi-ku, Fukuoka, Japan.

In situ sequential high-resolution observations were performed on gold nanorods under near-infra-red pulsed laser irradiation using a high-voltage electron microscope attached to a pulsed laser illumination system. The original nanorods were single crystals; the longer axes were oriented along [001]. Under laser light irradiation with λ = 1064 nm with an average intensity per pulse of 980 or 490 J/m2, the shape of the nanorods changed from rod to barrel surrounded by the {111} and {001} facets, while the original single-crystalline structure was maintained. Read More

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December 2018
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