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https://www.readbyqxmd.com/read/28454482/effects-of-environmental-factors-and-metallic-electrodes-on-ac-electrical-conduction-through-dna-molecule
#1
S Abdalla, A Obaid, F M Al-Marzouki
BACKGROUND: Deoxyribonucleic acid (DNA) is one of the best candidate materials for various device applications such as in electrodes for rechargeable batteries, biosensors, molecular electronics, medical- and biomedical-applications etc. Hence, it is worthwhile to examine the mechanism of charge transport in the DNA molecule, however, still a question without a clear answer is DNA a molecular conducting material (wire), semiconductor, or insulator? The answer, after the published data, is still ambiguous without any confirmed and clear scientific answer...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28454215/evaluation-of-aldh1-expression-in-ipsilateral-breast-cancer-recurrence
#2
Tadahiko Shien, Takehiro Tanaka, Masahiko Tanabe, Yasuhiro Okumura, Norikazu Masuda, Atsushi Yoshida, Nobuyuki Arima, Yoshifumi Komoike, Satoru Tanaka, Takuji Iwase, Tetsuya Taguchi, Katsuhiko Nakatsukasa, Hideo Inaji, Makoto Ishitobi
Aldehyde dehydrogenase 1 (ALDH1) is a cancer stem cell (CSC) marker that is easily evaluable. The expression and clinical significance of ALDH1 in ipsilateral breast tumor recurrence (IBTR) has yet to be investigated. In the present study, the expression profile of ALDH1 and its correlation with prognosis in IBTR tissues was examined. Patients with IBTR from eight institutions were retrospectively enrolled in the study. Immunohistochemistry was used to examine ALDH1 expression patterns in the tissue specimens of primary cancers and IBTRs...
March 2017: Oncology Letters
https://www.readbyqxmd.com/read/28454184/-register-of-difficult-surgical-situations
#3
Michael Korenkov, Henning Dralle, Ernst Klar, Stefan Saad, Norbert Senninger, Jens Standop, Albrecht Stier, Martin Strik, Alexis Ulrich, Rudolf Weiner
Every surgical problem that increases the likelihood of intraoperative and postoperative complications is considered to be a difficult surgical situation. Based on this definition, Korenkov et al. proposed to classify patients according to the following intraoperative difficulty levels (I to IV): (I) ideal situation (easy to operate, no problems), (II) fairly easy/manageable/simple (some minor difficulties may occur), (III) difficult/problematic (difficult to operate; some operative techniques are considerably more difficult than others), and (IV) very difficult (every operative step is difficult/challenging)...
April 28, 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/28454007/groundwater-remediation-from-the-past-to-the-future-a-bibliometric-analysis
#4
Shu Zhang, Guozhu Mao, John Crittenden, Xi Liu, Huibin Du
Groundwater is an important component of terrestrial ecosystems and plays a role in geochemical cycling. Groundwater is also used for agricultural irrigation and for the domestic supply of drinking water in most nations. However, groundwater contamination has led to many research efforts on groundwater remediation technologies and strategies. This study evaluated a total of 5486 groundwater remediation-related publications from 1995 to 2015 using bibliometric technology and social network analysis, to provide a quantitative analysis and a global view on the current research trend and future research directions...
January 19, 2017: Water Research
https://www.readbyqxmd.com/read/28453781/dramatic-science-or-scientific-drama
#5
Christopher G Goetz
No abstract text is available yet for this article.
April 27, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/28453700/a-need-to-simplify-informed-consent-documents-in-cancer-clinical-trials-a-position-paper-of-the-arcad-group
#6
H Bleiberg, G Decoster, A de Gramont, P Rougier, A Sobrero, A Benson, B Chibaudel, J Y Douillard, C Eng, C Fuchs, M Fujii, R Labianca, A K Larsen, E Mitchell, H J Schmoll, D Sprumont, J Zalcberg
Background: In respect of the principle of autonomy and the right of self-determination, obtaining an informed consent of potential participants before their inclusion in a study is a fundamental ethical obligation. The variations in national laws, regulations, and cultures contribute to complex informed consent documents for patients participating in clinical trials. Currently, only few ethics committees seem willing to address the complexity and the length of these documents and to request investigators and sponsors to revise them in a way to make them understandable for potential participants...
May 1, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28453651/a-panoromic-view-of-personal-cancer-genomes
#7
Lidia Mateo, Oriol Guitart-Pla, Carles Pons, Miquel Duran-Frigola, Roberto Mosca, Patrick Aloy
The massive molecular profiling of thousands of cancer patients has led to the identification of many tumor type specific driver genes. However, only a few (or none) of them are present in each individual tumor and, to enable precision oncology, we need to interpret the alterations found in a single patient. Cancer PanorOmics (http://panoromics.irbbarcelona.org) is a web-based resource to contextualize genomic variations detected in a personal cancer genome within the body of clinical and scientific evidence available for 26 tumor types, offering complementary cohort- and patient-centric views...
April 27, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28453514/gut-check-the-evolution-of-an-educational-board-game
#8
David A Coil, Cassandra L Ettinger, Jonathan A Eisen
The "gamification" of science has gained a lot of traction in recent years, and games that convey scientific concepts or themes are increasingly popular. While a number of existing games touch on microbiology, very few consider the beneficial (as opposed to the detrimental) aspects of microbes. We designed a board game called "Gut Check: The Microbiome Game" to fill this gap. The game is meant to be both educational as well as challenging and fun. Here we discuss the development of the game, some of the logistics of game development in this context, and offer suggestions for others thinking of similar projects...
April 2017: PLoS Biology
https://www.readbyqxmd.com/read/28453507/genetic-cancer-risk-assessment-for-breast-cancer-in-latin-america
#9
Yanin Chavarri-Guerra, Kathleen Reilly Blazer, Jeffrey Nelson Weitzel
In Latin America, breast cancer is the most common malignancy in women, and limited available data suggest that up to 15% of all breast cancer cases in the region are hereditary. Genetic cancer risk assessment and counseling is a critical component of the appropriate clinical care of patients with hereditary breast cancer and their families. Unfortunately, genetic services are underdeveloped across Latin America, and access to genetic testing and counseling is very scarce in the region. Barriers contributing to the access to genetic care are high cost and lack of insurance coverage for genetic tests, insufficient oncogenetics training or expertise, nonexistence of genetic counseling as a clinical discipline, and lack of supportive healthcare policies...
March 2017: Revista de Investigación Clínica; Organo del Hospital de Enfermedades de la Nutrición
https://www.readbyqxmd.com/read/28453365/a-novel-method-for-designing-and-optimizing-the-layout-of-facilities-in-bathroom-for-the-elderly-in-home-based-rehabilitation
#10
Duojin Wang, Jing Wu, Qinglian Lin
PURPOSE: The home-based rehabilitation of elderly patients improves their autonomy, independence and reintegration into society. Hence, a suitable environment plays an important role in rehabilitation, as do different assistance technologies. The majority of accidents at home involving elderly people occur in the bathroom. Therefore, the planning of the layout of facilities is important in this potentially dangerous area. This paper proposes an approach towards designing and optimizing the layout of facilities in the bathroom, based on logistical and nonlogistical relationships...
April 28, 2017: Disability and Rehabilitation. Assistive Technology
https://www.readbyqxmd.com/read/28453313/medical-adhesive-related-skin-injuries-associated-with-vascular-access
#11
Jan Hitchcock, Louise Savine
Establishing vascular access and preventing infection, both at insertion and during ongoing care is generally the top priority; the maintenance of optimal skin integrity is often a distant secondary consideration. Skin can react to different types of dressings or adhesives, or problems can arise relating to the securement of lines or the development of sensitivities to cleaning solutions. Clearly, these scenarios are not limited to the securement of vascular access devices; however, a patient with a long-term vascular access device may not have other options for vascular access, which makes this a very important and yet largely unrecognised area...
April 27, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28450127/carcinogenicity-of-consumption-of-red-meat-and-processed-meat-a-review-of-scientific-news-since-the-iarc-decision
#12
REVIEW
José L Domingo, Martí Nadal
In October 2015, the International Agency for Research on Cancer (IARC) issued a press release on the results of the evaluation of the carcinogenicity of red and processed meat. Based on the accumulated scientific literature, the consumption of red meat was classified as "probably carcinogenic to humans" and processed meat as "carcinogenic to humans". Given the importance of this topic, this review was aimed at revising the current state-of-the-art on the carcinogenicity of red and processed meat, some time after the IARC decision...
April 24, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28449478/protective-effect-of-propofol-preconditioning-on-ischemia-reperfusion-injury-in-human-hepatocyte
#13
Yuzhu Zhang, Zhenzhen Chen, Nianhai Feng, Junxia Tang, Xingbo Zhao, Chengxiao Liu, Hongyu Xu, Mengyuan Zhang
BACKGROUND: Blood reperfusion after ischemia is the main measure to restore cell function. This study was aimed to explore the effect of propofol on rat and cell models of liver ischemia-reperfusion (I/R) injury, and to investigate its possible mechanism. METHODS: Wistar rats were divided into four groups: control group, sham group, I/R group, and propofol group. Human hepatocyte HL7702 was divided into six groups: control group, I/R group and propofol (5, 10, 20 and 40 µmol/L) groups...
March 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28449332/behavioural-disinhibition-in-the-general-population-during-the-antiretroviral-therapy-roll-out-in-sub-saharan-africa-systematic-review-and-meta-analysis
#14
REVIEW
Eva M Legemate, Jan A C Hontelez, Caspar W N Looman, Sake J De Vlas
OBJECTIVES: Improved life expectancy and reduced transmission probabilities due to ART may result in behavioural disinhibition - i.e. an increase in sexual risk behaviour in response to a perceived lower risk of HIV. We examined trends in sexual risk behaviour in the general population of sub-Saharan African countries 1999 - 2015. METHODS: We systematically reviewed scientific literature of sexual behaviour, and reviewed trends in Demographic and Health Surveys...
April 27, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28449257/the-development-and-application-of-random-match-probabilities-to-firearm-and-toolmark-identification
#15
John E Murdock, Nicholas D K Petraco, John I Thornton, Michael T Neel, Todd J Weller, Robert M Thompson, James E Hamby, Eric R Collins
The field of firearms and toolmark analysis has encountered deep scrutiny of late, stemming from a handful of voices, primarily in the law and statistical communities. While strong scrutiny is a healthy and necessary part of any scientific endeavor, much of the current criticism leveled at firearm and toolmark analysis is, at best, misinformed and, at worst, punditry. One of the most persistent criticisms stems from the view that as the field lacks quantified random match probability data (or at least a firm statistical model) with which to calculate the probability of a false match, all expert testimony concerning firearm and toolmark identification or source attribution is unreliable and should be ruled inadmissible...
May 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28449113/development-of-a-new-clinical-severity-staging-system-for-patients-with-nonmetastatic-papillary-thyroid-carcinoma
#16
Omar A Karadaghy, Dorina Kallogjeri, Jay F Piccirillo
Importance: The inclusion of patient features in addition to tumor morphology provides a more holistic staging system. Objective: To identify prognostically important variables in papillary thyroid carcinoma (PTC) to incorporate into a comprehensive functional severity staging system (FSSS) and clinical severity staging system (CSSS) and to validate the model using a multi-institutional database. Design, Setting, and Participants: Retrospective cohort study of adults 18 years or older newly diagnosed or treated for nonmetastatic PTC at the Siteman Cancer Center from 1995 through 2012...
April 27, 2017: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/28449050/cardioscape-mapping-the-cardiovascular-funding-landscape-in-europe
#17
Axel Radlach Pries, Anastasia Naoum, Helmut Habazettl, Mathias Dunkel, Robert Preissner, Caroline J Coats, Ana Tornada, Francesco Orso, Frans Van de Werf, David A Wood
Aims: The burden of cardiovascular disease is increasing worldwide, which has to be reflected by cardiovascular (CV) research in Europe. CardioScape, a FP7 funded project initiated by the European Society of Cardiology (ESC), identified where CV research is performed, how it is funded and by whom. It could be transformed into an on-line and up-to-date resource of great relevance for researchers, funding bodies and policymakers and could be a role model for mapping CV research funding in Europe and beyond...
April 25, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28449033/response-assessment-in-medulloblastoma-and-leptomeningeal-seeding-tumors-recommendations-from-the-response-assessment-in-pediatric-neuro-oncology-committee
#18
Katherine E Warren, Gilbert Vezina, Tina Y Poussaint, Monika Warmuth-Metz, Marc C Chamberlain, Roger J Packer, Alba A Brandes, Moshe Reiss, Stewart Goldman, Michael J Fisher, Ian F Pollack, Michael D Prados, Patrick Y Wen, Susan M Chang, Christelle Dufour, David Zurakowski, Rolf D Kortmann, Mark W Kieran
Lack of standard response criteria in clinical trials for medulloblastoma and other seeding tumors complicates assessment of therapeutic efficacy and comparisons across studies. An international working group was established to develop consensus recommendations for response assessment. The aim is that these recommendations be prospectively evaluated in clinical trials, with the goal of achieving more reliable risk stratification and uniformity across clinical trials. Current practices and literature review were performed to identify major confounding issues and justify subsequently developed recommendations; in areas lacking scientific investigations, recommendations were based on experience of committee members and consensus was reached after discussion...
April 25, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28448778/economic-impact-of-above-label-dosing-with-etanercept-adalimumab-or-ustekinumab-in-patients-with-psoriasis
#19
Steven R Feldman, Yang Zhao, Huanxue Zhou, Vivian Herrera, Haijun Tian, Yunfeng Li
BACKGROUND: Patients with moderate-to-severe psoriasis may be treated with above-label doses of biologics in an attempt to optimize outcomes. Dose escalation will have an effect on the cost of treatment. OBJECTIVE: To examine costs related to above-label use of etanercept, adalimumab, and ustekinumab among patients with moderate-to-severe psoriasis. METHODS: A retrospective study was performed using a large U.S. claims database. Patients were included in the study if they were aged ≥ 18 years with a diagnosis of psoriasis (excluding psoriatic arthritis) and had at least 1 medication fill for etanercept, adalimumab, or ustekinumab between January 1, 2011, and June 30, 2012...
May 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28448696/new-zealand-rheumatology-association-and-australian-rheumatology-association-with-the-rheumatology-health-professionals-association-joint-annual-scientific-meeting-20-23-may-2017-auckland-convention-centre-auckland-new-zealand
#20
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