bluuebunny/crossref_metadata_2025_split huggingface dataset:
‘Don’t blame the middle man’: an exploratory qualitative study to explore the experiences of translators breaking bad news
Authors: Prentice Joanna , Nelson Annmarie , Baillie Jessica , Osborn Hannah , Noble Simon 
Published: March 2014

Background: Healthcare professionals find breaking bad news difficult and upsetting. Increasing cultural diversity has led to a greater number of patients whose first language differs to that of the healthcare provider, with more patients requiring a translator to facilitate communication. Hospitals often ask non-clinical translators to facilitate breaking bad news. We sought to explore the experiences of translators within a specialist oncology centre. Methods: Following ethical and governance approvals, semi-structured interviews were undertaken with five translators recruited from the specialist oncology centre. Interviews were audiotaped and transcribed verbatim. The data were analysed thematically, with major themes and subthemes identified. Setting: Outpatient setting of a regional cancer centre. Participants: Translators serving a regional cancer centre. Main outcome measures: Qualitative data identified through thematic analysis. Results: Major themes included the significant emotional impact of translating distressing information, the challenges of accurately conveying information in a culturally congruent format and the need for formal briefing, debriefing and support. Subthemes included feeling guilty for divulging distressing news, being the focus of patients’ distress or anger, and feeling in conflict with the patient or family and issues surrounding confidentiality. Translators also felt a strong sense of advocacy for the patients and found encounters with death and dying emotionally challenging. Conclusions: The increasing use of translators in the care of patients with advanced cancer is increasingly resulting in lay people being subject to similar emotional pressures faced by clinical staff, yet without the necessary formal training or support mechanisms that are recommended for clinicians. This exploratory study highlights the training and support needs of non-clinical staff as identifying a unique set of communication challenges faced by translators.
End-of-life care in general practice: A cross-sectional, retrospective survey of ‘cancer’, ‘organ failure’ and ‘old-age/dementia’ patients
Authors: Evans Natalie , Pasman H Roeline W , Donker Gé A , Deliens Luc , Van den Block Lieve , Onwuteaka-Philipsen Bregje ,   on behalf of EUROIMPACT, Van den Block Lieve , De Groote Zeger , Brearley Sarah , Caraceni Augusto , Cohen Joachim , Francke Anneke , Harding Richard , Higginson Irene J , Kaasa Stein , Linden Karen , Miccinesi Guido , Onwuteaka-Philipsen Bregje , Pardon Koen , Pasman Roeline , Pautex Sophie , Payne Sheila , Luc Deliens 
Published: March 2014

Background: End-of-life care is often provided in primary care settings. Aim: To describe and compare general-practitioner end-of-life care for Dutch patients who died from ‘cancer’, ‘organ failure’ and ‘old-age or dementia’. Design: A cross-sectional, retrospective survey was conducted within a sentinel network of general practitioners. General practitioners recorded the end-of-life care of all patients who died (1 January 2009 to 31 December 2011). Differences in care between patient groups were analysed using multivariate logistic regressions performed with generalised linear mixed models. Setting/participants: Up to 63 general practitioners, covering 0.8% of the population, recorded the care of 1491 patients. Results: General practitioners personally provided palliative care for 75% of cancer, 38% of organ failure and 64% of old-age/dementia patients (adjusted odds ratio (confidence interval): cancer (reference category); organ failure: 0.28 (0.17, 0.47); old-age/dementia: 0.31 (0.15, 0.63)). In the week before death, 89% of cancer, 77% of organ failure and 86% of old-age/dementia patients received palliative treatments: (adjusted odds ratio (confidence interval): cancer (reference category); old-age/dementia: 0.54 (0.29, 1.00); organ failure: 0.38 (0.16, 0.92)). Options for palliative care were discussed with 81% of cancer, 44% of organ failure and 39% of old-age/dementia patients (adjusted odds ratio (confidence interval): cancer (reference category); old-age/dementia: 0.34 (0.21, 0.57); organ failure: 0.17 (0.08, 0.36)). Conclusion: The results highlight the need to integrate palliative care with optimal disease management in primary practice and to initiate advance care planning early in the chronic disease trajectory to enable all patients to live as well as possible with progressive illness and die with dignity and comfort.
Characteristics and Behaviors of Older Male Anabolic Steroid Users
Authors: Ip Eric J. , Trinh Karen , Tenerowicz Michael J. , Pal Jai , Lindfelt Tristan A. , Perry Paul J. 
Published: March 2014

Objective: To compare and contrast the characteristics of 2 groups of men ≥40 years old: reported anabolic–androgenic steroid (AAS) users and nonusers. Design: Cross-sectional survey. Setting: Thirty-eight online fitness, weight lifting, bodybuilding, and steroid Web sites. Participants: A total of 67 male AAS users and 76 male nonusers ≥40 years old. Main Outcomes Measured: Demographics, utilization of AAS and other performance-enhancing agents (PEAs), exercise patterns, history of illicit drugs and alcohol use, and psychiatric traits/diagnoses. Results: The majority of AAS users ≥40 years old were caucasian (92.5%), heterosexual (97.0%), and classified themselves as recreational exercisers (79.1%). AAS users took more PEAs (11.5 ± 5.6 vs 4.6 ± 2.7; P < .001), were more likely to binge drink (47.8% vs 29.0%; P = .025), report heavy alcohol use (21.0% vs 7.9%; P = .031), meet criteria for substance dependence disorder (27.4% vs 4.0%; P < .001), and report an anxiety disorder diagnosis (12.0% vs 2.6%; P = .046) than nonusers. Conclusions: AAS misuse is prevalent among older men and is associated with polypharmacy, more aggressive alcohol use, and a higher incidence of substance dependence and anxiety disorders compared to nonusers. This information may help clinicians and researchers identify and develop appropriate intervention strategies for AAS abuse among older men.
Non-neoplastic findings at colonoscopy after positive faecal occult blood testing: Data from the English Bowel Cancer Screening Programme
Authors: Bevan Roisin , Lee Thomas JW , Nickerson Claire , Rubin Greg , Rees Colin J 
Published: March 2014

Background The aim of the English Bowel Cancer Screening Programme (BCSP) is to diagnose early colorectal cancer and advanced adenomas. However, other findings are also reported at screening colonoscopy. Small studies demonstrate findings other than cancer or adenomas (non-neoplastic findings (NNF)) in 11–25%. Objectives and setting Describe the frequency and nature of NNF within the BSCP. Methods Data were obtained from the BCSP national database for all individuals undergoing colonoscopic investigation after positive faecal occult blood testing between August 2006 and November 2011. Data included demographics, smoking status, neoplastic findings and NNF. Results 121728 colonoscopies were analysed. ≥1 NNF were found in 26251 cases (21.6%). Diverticular disease (18875 cases) and haemorrhoids (7011) were the most frequently reported. Inflammatory bowel disease (IBD) was reported in 2152 cases. Individuals with a neoplastic diagnosis were less likely to have an NNF than those without (19.8% v 24.4%, p < 0.001). After adjustment for confounding using multivariable analysis, older age was still associated with a small but statistically significant risk of NNF. Conclusions The BCSP generates a significant volume of NNF. A small proportion of individuals were found to have inflammatory bowel disease (IBD) - an important diagnosis with implications for long-term management. BCSP participants should be aware that findings other than neoplasia may be detected and the relevance of these findings to that individual is not known. Reporting of NNF varies between colonoscopists, and potential underreporting is a limitation of this study. Further study is required to establish the impact of NNF on primary and secondary care.
Soy food frequency questionnaire does not correlate with baseline isoflavone levels in patients with bladder cancer
Authors: Kolesar Jill M , Pomplun Marcia , Havighurst Tom , Stublaski Jeanne , Wollmer Barbara , Kim KyungMann , Tangrea Joseph A , Parnes Howard L , House Margaret G , Gee Jason , Messing Edward , Bailey Howard H 
Published: March 2014

Background The isoflavone genistein, a natural soy product with receptor tyrosine kinase-inhibiting activity, as well as phytoestrogenic and other potential anticarcinogenic effects, is being studied as an anticancer agent. Since isoflavones are commonly consumed in food products containing soy proteins, a method to control for baseline isoflavone consumption is needed. Methods HPLC was used to evaluate baseline plasma and urine concentrations of isoflavone in fifty-four participants with bladder cancer enrolled on a phase II chemoprevention study of G-2535. The soy food frequency questionnaire was used to assess participant’s baseline soy intake. The association between baseline isoflavone concentrations and intakes for genistein and daidzein was assessed by the Spearman’s rank correlation coefficient. Results The majority of participants had no detectable genistein or daidzein in plasma at baseline. The median and range of values were 0 (0–1480) nmol/L for genistein, and 0 (0–1260) nmol/L for daidzein. In urine, the median and range of values were 91.0 (0–9030) nmol/L for genistein and 623 (0–100,000) nmol/L for daidzein. The median and range of weekly estimated genistein intake was 0 (0–236) mg/wk; the median and range of weekly estimated daidzein intake was 0 (0–114) mg/wk. There was no relationship to soy intake as measured by the food frequency questionnaire and baseline isoflavone levels in plasma or urine and the Spearman’s rank correlation coefficients were not significant. Conclusion The soy food frequency questionnaire did not correlate with plasma or urine concentrations of either isoflavone. Impact Alternative methods for controlling for soy consumption, including measuring plasma and urine concentrations, in isoflavone chemoprevention trials should be considered.
Amplification of bacteria-induced platelet activation is triggered by FcγRIIA, integrin αIIbβ3, and platelet factor 4
Authors: Arman Mònica , Krauel Krystin , Tilley Dorothea O. , Weber Claudia , Cox Dermot , Greinacher Andreas , Kerrigan Steven W. , Watson Steve P. 
Published: March 2014

Key PointsFcγRIIA activation is key for platelet aggregation in response to bacteria, and depends on IgG and αIIbβ3 engagement. PF4 binds to bacteria and reduces the lag time for platelet aggregation.
BCRgt: a Bayesian cluster regression-based genotyping algorithm for the samples with copy number alterations
Authors: Yang Shengping , Cui Xiangqin , Fang Zhide 
Published: March 2014

AbstractBackgroundAccurate genotype calling is a pre-requisite of a successful Genome-Wide Association Study (GWAS). Although most genotyping algorithms can achieve an accuracy rate greater than 99% for genotyping DNA samples without copy number alterations (CNAs), almost all of these algorithms are not designed for genotyping tumor samples that are known to have large regions of CNAs.ResultsThis study aims to develop a statistical method that can accurately genotype tumor samples with CNAs. The proposed method adds a Bayesian layer to a cluster regression model and is termed a Bayesian Cluster Regression-based genotyping algorithm (BCRgt). We demonstrate that high concordance rates with HapMap calls can be achieved without using reference/training samples, when CNAs do not exist. By adding a training step, we have obtained higher genotyping concordance rates, without requiring large sample sizes. When CNAs exist in the samples, accuracy can be dramatically improved in regions with DNA copy loss and slightly improved in regions with copy number gain, comparing with the Bayesian Robust Linear Model with Mahalanobis distance classifier (BRLMM).ConclusionsIn conclusion, we have demonstrated that BCRgt can provide accurate genotyping calls for tumor samples with CNAs.
Increased diacylglycerol kinase ζ expression in human metastatic colon cancer cells augments Rho GTPase activity and contributes to enhanced invasion
Authors: Cai Kun , Mulatz Kirk , Ard Ryan , Nguyen Thanh , Gee Stephen H 
Published: March 2014

Abstract

Background
Unraveling the signaling pathways responsible for the establishment of a metastatic phenotype in carcinoma cells is critically important for understanding the pathology of cancer. The acquisition of cell motility is a key property of metastatic tumor cells and is a prerequisite for invasion. Rho GTPases regulate actin cytoskeleton reorganization and the cellular responses required for cell motility and invasion. Diacylglycerol kinase ζ (DGKζ), an enzyme that phosphorylates diacylglycerol to yield phosphatidic acid, regulates the activity of the Rho GTPases Rac1 and RhoA. DGKζ mRNA is highly expressed in several different colon cancer cell lines, as well as in colon cancer tissue relative to normal colonic epithelium, and thus may contribute to the metastatic process.

Methods
To investigate potential roles of DGKζ in cancer metastasis, a cellular, isogenic model of human colorectal cancer metastatic transition was used. DGKζ protein levels, Rac1 and RhoA activity, and PAK phosphorylation were measured in the non-metastatic SW480 adenocarcinoma cell line and its highly metastatic variant, the SW620 line. The effect of DGKζ silencing on Rho GTPase activity and invasion through Matrigel-coated Transwell inserts was studied in SW620 cells. Invasiveness was also measured in PC-3 prostate cancer and MDA-MB-231 breast cancer cells depleted of DGKζ.

Results
DGKζ protein levels were elevated approximately 3-fold in SW620 cells compared to SW480 cells. There was a concomitant increase in active Rac1 in SW620 cells, as well as substantial increases in the expression and phosphorylation of the Rac1 effector PAK1. Similarly, RhoA activity and expression were increased in SW620 cells. Knockdown of DGKζ expression in SW620 cells by shRNA-mediated silencing significantly reduced Rac1 and RhoA activity and attenuated the invasiveness of SW620 cells in vitro. DGKζ silencing in highly metastatic MDA-MB-231 breast cancer cells and PC-3 prostate cancer cells also significantly attenuated their invasiveness.

Conclusion
Elevated DGKζ expression contributes to increased Rho GTPase activation and the enhanced motility of metastatic cancer cells. These findings warrant further investigation of the clinical relevance of DGKζ upregulation in colon and other cancers. Interfering with DGKζ function could provide a means of inhibiting invasion and metastasis.
Negative differential resistance and carrier transport of electrically bistable devices based on poly(N-vinylcarbazole)-silver sulfide composites
Authors: Li Jiantao , Tang Aiwei , Li Xu , Cao Yapeng , Wang Miao , Ning Yu , Lv Longfeng , Lu Qipeng , Lu Yunzhang , Hu Yufeng , Hou Yanbing , Teng Feng 
Published: March 2014

Abstract
An electrically bistable device has been fabricated based on poly(N-vinylcarbazole) (PVK)-silver sulfide (Ag2S) composite films using a simple spin-coating method. Current–voltage (I-V) characteristics of the as-fabricated devices exhibit a typical electrical bistability and negative differential resistance (NDR) effect. The NDR effect can be tuned by varying the positive charging voltage and the charging time. The maximum current ratio between the high-conducting state (ON state) and low-conducting state (OFF state) can reach up to 104. The carrier transport mechanisms in the OFF and ON states are described by using different models on the basis of the experimental result.
DNA-encapsulated silver nanodots as ratiometric luminescent probes for hypochlorite detection
Authors: Park Soonyoung , Choi Sungmoon , Yu Junhua 
Published: March 2014

Abstract
DNA-encapsulated silver nanodots are noteworthy candidates for bio-imaging probes, thanks to their excellent photophysical properties. The spectral shift of silver nanodot emitters from red to blue shows excellent correlations with the concentration of reactive oxygen species, which makes it possible to develop new types of probes for reactive oxygen species (ROS), such as hypochlorous acid (HOCl), given the outstanding stability of the blue in oxidizing environments. HOCl plays a role as a microbicide in immune systems but, on the other hand, is regarded as a disease contributor. Moreover, it is a common ingredient in household cleaners. There are still great demands to detect HOCl fluxes and their physiological pathways. We introduce a new ratiometric luminescence imaging method based on silver nanodots to sensitively detect hypochlorite. The factors that influence the accuracy of the detection are investigated. Its availability has also been demonstrated by detecting the active component in cleaners.

PACS

82; 82.30.Nr; 82.50.-m
Severe acute respiratory syndrome-coronavirus infection in aged nonhuman primates is associated with modulated pulmonary and systemic immune responses
Authors: Clay Candice C , Donart Nathan , Fomukong Ndingsa , Knight Jennifer B , Overheim Katie , Tipper Jennifer , Van Westrienen Jesse , Hahn Fletcher , Harrod Kevin S 
Published: March 2014

AbstractBackgroundMany respiratory viruses disproportionately impact the elderly. Likewise, advanced age correlated with more adverse disease outcomes following severe acute respiratory syndrome coronavirus (SARS-CoV) infection in humans. We used an aged African green monkey SARS-CoV infection model to better understand age-related mechanisms of increased susceptibility to viral respiratory infections. Nonhuman primates are critical translational models for such research given their similarities to humans in immune-ageing as well as lung structure.ResultsSignificant age- and infection-dependent differences were observed in both systemic and mucosal immune compartments. Peripheral lymphocytes, specifically CD8 T and B cells were significantly lower in aged monkeys pre- and post- SARS-CoV infection, while neutrophil and monocyte numbers were not impacted by age or infection status. Serum proinflammatory cytokines were similar in both age groups, whereas significantly lower levels of IL-1beta, IL-18, IL-6, IL-12 and IL-15 were detected in the lungs of SARS-CoV-infected aged monkeys at either 5 or 10 days post infection. Total lung leukocyte numbers and relative frequency of CD8 T cells, B cells, macrophages and dendritic cells were greatly reduced in the aged host during SARS-CoV infection, despite high levels of chemoattractants for many of these cells in the aged lung. Dendritic cells and monocytes/macrophages showed age-dependent differences in activation and chemokine receptor profiles, while the CD8 T cell and B cell responses were significantly reduced in the aged host. In examination of viral titers, significantly higher levels of SARS-CoV were detected in the nasal swabs early, at day 1 post infection, in aged as compared to juvenile monkeys, but virus levels were only slightly higher in aged animals by day 3. Although there was a trend of higher titers in respiratory tissues at day 5 post infection, this did not reach statistical significance and virus was cleared from all animals by day 10, regardless of age.ConclusionsThis study provides unique insight into how several parameters of the systemic and mucosal immune response to SARS-CoV infection are significantly modulated by age. These immune differences may contribute to deficient immune function and the observed trend of higher SARS-CoV replication in aged nonhuman primates.
Sources of Individual Variability: Mirnas That Predispose to Neuropathic Pain Identified Using Genome-Wide Sequencing
Authors: Bali Kiran Kumar , Hackenberg Michael , Lubin Avigail , Kuner Rohini , Devor Marshall 
Published: March 2014

Background: We carried out a genome-wide study, using microRNA sequencing (miRNA-seq), aimed at identifying miRNAs in primary sensory neurons that are associated with neuropathic pain. Such scans usually yield long lists of transcripts regulated by nerve injury, but not necessarily related to pain. To overcome this we tried a novel search strategy: identification of transcripts regulated differentially by nerve injury in rat lines very similar except for a contrasting pain phenotype. Dorsal root ganglia (DRGs) L4 and 5 in the two lines were excised 3 days after spinal nerve ligation surgery (SNL) and small RNAs were extracted and sequenced. Results: We identified 284 mature miRNA species expressed in rat DRGs, including several not previously reported, and 3340 unique small RNA sequences. Baseline expression of miRNA was nearly identical in the two rat lines, consistent with their shared genetic background. In both lines many miRNAs were nominally up- or down-regulated following SNL, but the change was similar across lines. Only 3 miRNAs that were expressed abundantly (rno-miR-30d-5p, rno-miR-125b-5p) or at moderate levels (rno-miR-379-5p) were differentially regulated. This makes them prime candidates as novel PNS determinants of neuropathic pain. The first two are known miRNA regulators of the expression of Tnf, Bdnf and Stat3, gene products intimately associated with neuropathic pain phenotype. A few non-miRNA, small noncoding RNAs (sncRNAs) were also differentially regulated. Conclusions: Despite its genome-wide coverage, our search strategy yielded a remarkably short list of neuropathic pain-related miRNAs. As 2 of the 3 are validated regulators of important pro-nociceptive compounds, it is likely that they contribute to the orchestration of gene expression changes that determine individual variability in pain phenotype. Further research is required to determine whether some of the other known or predicted gene targets of these miRNAs, or of the differentially regulated non-miRNA sncRNAs, also contribute.
Impact of completeness of revascularization by coronary intervention on exercise capacity early after acute ST-elevation myocardial infarction
Authors: Zhao Wei , Bai Jin , Zhang Fuchun , Guo Lijun , Gao Wei 
Published: March 2014

Abstract

Background
The importance of achieving complete revascularization by percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (MI) on exercise capacity remains unclear.

Objective
To compare exercise capacity early after acute ST-elevation myocardial infarction (STEMI), in patients receiving PCI with stenting, between those completely revascularized (CR) and those incompletely revascularized (IR).

Methods
We retrospectively reviewed 326 patients [single-vessel disease (SVD) group, 118 patients; multivessel disease (MVD) with CR group, 112 patients; MVD with IR group, 96 patients] who underwent cardiopulmonary exercise testing 7–30 days after STEMI to measure peak oxygen uptake (VO2peak), oxygen uptake at anaerobic threshold (VO2AT), and peak oxygen pulse. Demographic data, presence of concomitant diseases, STEMI characteristics, and echocardiography and angiography findings were evaluated.

Results
Most patients were male (89.0%) and mean age was 55.6 ± 11.2 years. Ischemic ST deviation occurred in 7.1%, with no significant difference between groups. VO2peak and VO2AT did not differ significantly between groups, despite a trend to be lower in the CR and IR groups compared with the SVD group. Peak oxygen pulse was significantly higher in the SVD group than in the IR group (p = 0.005). After adjustment for age, gender, body mass index, cardiovascular risk factors, MI characteristics and echocardiography parameters, CR was not an independent predictor of VO2peak (OR = −0.123, 95% confidence interval [CI] -2.986 to 0.232, p = 0.093), VO2AT (OR = 0.002, 95% CI 1.735 to 1.773, p = 0.983), or peak oxygen pulse (OR = −0.102, 95% CI −1.435 to 0.105, p = 0.090).

Conclusion
CR in patients with STEMI treated with PCI for multivessel disease might show no benefit on short-term exercise tolerance over IR.