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https://www.readbyqxmd.com/read/28813112/what-do-cochrane-systematic-reviews-say-about-the-clinical-effectiveness-of-screening-and-diagnostic-tests-for-cancer
#1
André Tito Pereira Bueno, Vladimir Lisboa Capelasso, Rafael Leite Pacheco, Carolina de Oliveira Cruz Latorraca, Tiago Biachi de Castria, Daniela Vianna Pachito, Rachel Riera
CONTEXT AND OBJECTIVE: The purpose of screening tests for cancer is to detect it at an early stage in order to increase the chances of treatment. However, their unrestrained use may lead to unnecessary examinations, overdiagnosis and higher costs. It is thus necessary to evaluate their clinical effects in terms of benefits and harm. DESIGN AND SETTING: Review of Cochrane systematic reviews, carried out in the Discipline of Evidence-Based Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo...
July 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28812801/four-challenges-that-global-health-networks-face
#2
EDITORIAL
Jeremy Shiffman
Global health networks, webs of individuals and organizations with a shared concern for a particular condition, have proliferated over the past quarter century. They differ in their effectiveness, a factor that may help explain why resource allocations vary across health conditions and do not correspond closely with disease burden. Drawing on findings from recently concluded studies of eight global health networks-addressing alcohol harm, early childhood development (ECD), maternal mortality, neonatal mortality, pneumonia, surgically-treatable conditions, tobacco use, and tuberculosis-I identify four challenges that networks face in generating attention and resources for the conditions that concern them...
February 8, 2017: International Journal of Health Policy and Management
https://www.readbyqxmd.com/read/28812739/frequency-dependent-female-genital-cutting-behaviour-confers-evolutionary-fitness-benefits
#3
Janet A Howard, Mhairi A Gibson
Female genital cutting (FGC) has immediate and long-term negative health consequences that are well-documented, and its elimination is a priority for policymakers. The persistence of this widespread practice also presents a puzzle for evolutionary anthropologists due to its potentially detrimental impact on survival and reproductive fitness. Using multilevel modelling on demographic health survey datasets from five West African countries, here we show that FGC behaviour is frequency-dependent; the probability that girls are cut varies in proportion to the FGC frequency found in their ethnic group...
February 6, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812720/antagonistic-pleiotropy-and-mutation-accumulation-influence-human-senescence-and-disease
#4
Juan Antonio Rodríguez, Urko M Marigorta, David A Hughes, Nino Spataro, Elena Bosch, Arcadi Navarro
Senescence has long been a public health challenge as well as a fascinating evolutionary problem. There is neither a universally accepted theory for its ultimate causes, nor a consensus about what may be its impact on human health. Here we test the predictions of two evolutionary explanations of senescence-mutation accumulation and antagonistic pleiotropy-which postulate that genetic variants with harmful effects in old ages can be tolerated, or even favoured, by natural selection at early ages. Using data from genome-wide association studies (GWAS), we study the effects of genetic variants associated with diseases appearing at different periods in life, when they are expected to have different impacts on fitness...
January 30, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812713/female-plasticity-tends-to-reduce-sexual-conflict
#5
David V McLeod, Troy Day
Sexual conflict is the divergence of evolutionary interests between the sexes. A neglected aspect of sexual conflict theory is that the conflict often occurs within the female's body, which can lead to a power asymmetry between the sexes. In particular, the female may often be able to respond flexibly to the actions of the male, and so exhibits plasticity. Here, we consider the implications of female plasticity, and find that it tends to result in lower levels of sexual conflict. We then relate our results to a comparison of pre- versus post-copulatory sexual conflict, and we also show that this asymmetry between males and females reduces the likelihood of runaway selection, preventing co-evolutionary arms races...
February 13, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812686/interactions-of-microplastic-debris-throughout-the-marine-ecosystem
#6
REVIEW
Tamara S Galloway, Matthew Cole, Ceri Lewis
Marine microscopic plastic (microplastic) debris is a modern societal issue, illustrating the challenge of balancing the convenience of plastic in daily life with the prospect of causing ecological harm by careless disposal. Here we develop the concept of microplastic as a complex, dynamic mixture of polymers and additives, to which organic material and contaminants can successively bind to form an 'ecocorona', increasing the density and surface charge of particles and changing their bioavailability and toxicity...
April 20, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28812245/association-of-elements-with-schizophrenia-and-intervention-of-selenium-supplements
#7
Zhe Li, Yumei Liu, Xia Li, Wen Ju, Guanrui Wu, Xiaomei Yang, Xiaofeng Fu, Xibao Gao
The purpose of this study is to explore more trace elements (zinc, potassium, copper, iron, boron, manganese, selenium, chromium and cadmium elements) in addition to calcium, magnesium, lead and arsenic in the sera of patients with schizophrenia and the general population in China and to determine the effect of selenium on schizophrenia patients. Participants were collected from the Pingyin County Mental Health Hospital and Pingyin County. A t test was used to analyse the differences between schizophrenia patients and healthy subjects, and element content differences in gender...
August 15, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28811775/metformin-attenuate-ptz-induced-apoptotic-neurodegeneration-in-human-cortical-neuronal-cells
#8
Fehmida Bibi, Ikram Ullah, Myeong Ok Kim, Muhammad Imran Naseer
OBJECTIVE: Seizures are one of the neurodegenerative disorders of human being. Metformin has antioxidant properties and commonly used as an oral antidiabetic drug. The current study was aimed to observe the neuroprotective effect of metformin against PTZ-induced apoptotic neurodegeneration in human cortical neuronal cell culture. METHODS: To observe that exposure of pentylenetetrazol (PTZ) at the dose of (30mM) for 30 minutes induced neuronal cell death by activation of caspase-3 in human cortical neuronal 2 (HCN-2) cell line...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811753/characterization-of-the-rosellinia-necatrix-transcriptome-and-genes-related-to-pathogenesis-by-single-molecule-mrna-sequencing
#9
Hyeongmin Kim, Seung Jae Lee, Ick-Hyun Jo, Jinsu Lee, Wonsil Bae, Hyemin Kim, Kyungho Won, Tae Kyung Hyun, Hojin Ryu
White root rot disease, caused by the pathogen Rosellinia necatrix, is one of the world's most devastating plant fungal diseases and affects several commercially important species of fruit trees and crops. Recent global outbreaks of R. necatrix and advances in molecular techniques have both increased interest in this pathogen. However, the lack of information regarding the genomic structure and transcriptome of R. necatrix has been a barrier to the progress of functional genomic research and the control of this harmful pathogen...
August 2017: Plant Pathology Journal
https://www.readbyqxmd.com/read/28811601/autonomic-versus-perceptual-accounts-for-tactile-hypersensitivity-in-autism-spectrum-disorder
#10
Hiroshi Fukuyama, Shin-Ichiro Kumagaya, Kosuke Asada, Satsuki Ayaya, Masaharu Kato
Tactile atypicality in individuals with autism spectrum disorder (ASD) has harmful effects on their everyday lives including social interactions. However, whether tactile atypicality in ASD reflects perceptual and/or autonomic processes is unknown. Here, we show that adults with ASD have hypersensitivity to tactile stimuli in the autonomic but not perceptual domain. In particular, adults with ASD showed a greater skin conductance response (SCR) to tactile stimuli compared to typically developing (TD) adults, despite an absence of differences in subjective responses...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811302/effects-of-temperature-and-uvr-on-organic-matter-fluxes-and-the-metabolic-activity-of-acropora-muricata
#11
Lucile Courtial, Christine Ferrier-Pagès, Stéphan Jacquet, Riccardo Rodolfo-Metalpa, Stéphanie Reynaud, Cécile Rottier, Fanny Houlbrèque
Coral bleaching events are predicted to occur more frequently in the coming decades with global warming. The susceptibility of corals to bleaching during thermal stress episodes depends on many factors, including the magnitude of thermal stress and irradiance. The interactions among these two factors, and in particular with ultra-violet radiation (UVR), the most harmful component of light, are more complex than assumed, and are not yet well understood. This paper explores the individual and combined effects of temperature and UVR on the metabolism of Acropora muricata, one of the most abundant coral species worldwide...
August 15, 2017: Biology Open
https://www.readbyqxmd.com/read/28811211/72h-returns-a-trigger-tool-for-diagnostic-error
#12
Emily Aaronson, Pierre Borczuk, Theodore Benzer, Elizabeth Mort, Elizabeth Temin
BACKGROUND: Patients who return to the Emergency Department (ED) within 72h of discharge are often used for ED Quality Assurance efforts, however little is known about the yield of this kind of review and the types of errors it identifies. Our objective was to identify the prevalence, types and severity of errors in these cases. METHODS: Retrospective review of patients who presented to an urban, university affiliated ED between 10/1/2012-9/30/2015 who returned within 72 h requiring hospital admission...
August 8, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28810901/immediate-versus-delayed-surgery-for-hip-fractures-in-the-elderly-patients-a-protocol-for-a-systematic-review-and-meta-analysis
#13
Thomas Klestil, Christoph Röder, Christoph Stotter, Birgit Winkler, Stefan Nehrer, Martin Lutz, Irma Klerings, Gernot Wagner, Gerald Gartlehner, Barbara Nussbaumer-Streit
BACKGROUND: Hip fractures are a major public health problem in elderly populations and are accompanied by high-mortality rates. Whether timing of surgery has an impact on morbidity and mortality has been discussed controversially, numerous studies suggest that the delay of surgery can significantly increase the risk of morbidity and mortality; others report that achieving a stable medical condition is more important than early surgery. The goal of our systematic review is to assess the impact of timing of surgery on health outcomes in patients aged 60 years or older with acute hip fracture...
August 15, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28810899/chronic-pain-and-opioid-misuse-a-review-of-reviews
#14
REVIEW
Pauline Voon, Mohammad Karamouzian, Thomas Kerr
OBJECTIVE: The crisis of prescription opioid (PO) related harms has focused attention toward identifying and treating high-risk populations. This review aims to synthesize systematic reviews on the epidemiology and clinical management of comorbid chronic pain and PO or other substance misuse. METHODS: A systematic database search was conducted to identify systematic reviews published between 2000 and 2016. Eligible studies were systematic reviews related to chronic non-cancer pain and PO or other substance misuse...
August 15, 2017: Substance Abuse Treatment, Prevention, and Policy
https://www.readbyqxmd.com/read/28810841/effectiveness-of-online-and-mobile-telephone-applications-apps-for-the-self-management-of-suicidal-ideation-and-self-harm-a-systematic-review-and-meta-analysis
#15
Katrina Witt, Matthew J Spittal, Gregory Carter, Jane Pirkis, Sarah Hetrick, Dianne Currier, Jo Robinson, Allison Milner
BACKGROUND: Online and mobile telephone applications ('apps') have the potential to improve the scalability of effective interventions for suicidal ideation and self-harm. The aim of this review was therefore to investigate the effectiveness of digital interventions for the self-management of suicidal ideation or self-harm. METHODS: Seven databases (Applied Science & Technology; CENTRAL; CRESP; Embase; Global Health; PsycARTICLES; PsycINFO; Medline) were searched to 31 March, 2017...
August 15, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28810824/laparoscopic-donor-nephrectomy-early-experience-at-a-single-center-in-pakistan
#16
Rehan Mohsin, Asad Shehzad, Uspal Bajracharya, Bux Ali, Tahir Aziz, Muhammed Mubarak, Altaf Hashmi, Adibul Hasan Rizvi
OBJECTIVES: Laparoscopic donor nephrectomy has become the criterion standard for kidney retrieval from living donors. There is no information on the experience and outcomes of laparoscopic donor nephrectomy in Pakistan. The objective of the study was to identify benefits and harms of using laparoscopic compared with open nephrectomy techniques for renal allograft retrieval. MATERIALS AND METHODS: In this a retrospective study, patient files from May 2014 to September 2015 were analyzed...
August 13, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28810685/characterising-the-exposure-of-prison-staff-to-second-hand-tobacco-smoke
#17
Sean Semple, Helen Sweeting, Evangelia Demou, Greig Logan, Rachel O'Donnell, Kate Hunt
Second-hand tobacco smoke (SHS) is an avoidable and harmful exposure in the workplace but >25000 prison staff continue to be exposed on a daily basis in the UK and many more worldwide. SHS exposures in prisons are incompletely understood but may be considerable given the large proportion of smoking prisoners and limited ventilation. This study characterized the exposure of prison staff to SHS in all 15 prisons in Scotland using multiple methods. Exposure assessment strategies included 6-day area measurement of fine Particulate Matter (PM2...
August 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28810494/development-and-validation-of-a-smoking-rationalization-scale-for-male-smokers-in-china
#18
Xinyuan Huang, Wenjie Fu, Haiying Zhang, Hong Li, Xiaoxia Li, Yong Yang, Fan Wang, Junling Gao, Pinpin Zheng, Hua Fu, Ding Ding, Simon Chapman
The purpose of this study is to develop a smoking rationalization scale for Chinese male smokers. A total of 35 focus groups and 19 one-on-one interviews were conducted to collect items of the scale. Exploratory factor analyses and confirmatory factor analyses were conducted to identify the underlying structure of the scale. Results found a 26-item scale within six dimensions (smoking functional beliefs, risk generalization beliefs, social acceptability beliefs, safe smoking beliefs, self-exempting beliefs, and quitting is harmful beliefs)...
July 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28810159/hair-testing-to-assess-both-known-and-unknown-use-of-drugs-amongst-ecstasy-users-in-the-electronic-dance-music-scene
#19
Joseph J Palamar, Alberto Salomone, Enrico Gerace, Daniele Di Corcia, Marco Vincenti, Charles M Cleland
BACKGROUND: Data on both known and unknown drug use in the electronic dance music (EDM) scene is important to inform prevention and harm reduction. While surveys are the most common method of querying drug use, additional biological data can help validate use and detect unknown/unintentional use of drugs such as new psychoactive substances (NPS). We sought to determine the extent of both known and unknown use of various substances in this high-risk scene. METHODS: We hair-tested 90 self-reported past-year ecstasy/MDMA/Molly users attending EDM parties in New York City during the summer of 2016 using UHPLC-MS/MS...
August 12, 2017: International Journal on Drug Policy
https://www.readbyqxmd.com/read/28810157/propagating-the-haze-community-and-professional-perceptions-of-cannabis-cultivation-and-the-impacts-of-prohibition
#20
Helen Beckett Wilson, Stuart Taylor, Giles Barrett, Janet Jamieson, Lauren Grindrod
BACKGROUND: Recent decades have seen substantial changes in the UK cannabis landscape, including increased domestic production, the ascendancy of stronger strains (namely 'skunk') and the drug's reclassification under the 1971 Misuse of Drugs Act. Resultantly, cannabis retains significance in the consciousness, priorities and policy agendas of communities, drug services and criminal justice agencies. METHODS: This paper presents an empirical study, which examined both perceptions and impacts of cannabis cultivation and its control within a North-West English borough...
August 12, 2017: International Journal on Drug Policy
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