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https://www.readbyqxmd.com/read/29330208/neuroendocrine-tumor-heterogeneity-adds-uncertainty-to-the-world-health-organization-2010-classification-real-world-data-from-the-spanish-tumor-registry-r-getne
#1
Barbara Nuñez-Valdovinos, Alberto Carmona-Bayonas, Paula Jimenez-Fonseca, Jaume Capdevila, Ángel Castaño-Pascual, Marta Benavent, Jose Javier Pi Barrio, Alex Teule, Vicente Alonso, Ana Custodio, Monica Marazuela, Ángel Segura, Adolfo Beguiristain, Marta Llanos, Maria Purificacion Martinez Del Prado, Jose Angel Diaz-Perez, Daniel Castellano, Isabel Sevilla, Carlos Lopez, Teresa Alonso, Rocio Garcia-Carbonero
BACKGROUND: Gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) are a complex family of tumors of widely variable clinical behavior. The World Health Organization (WHO) 2010 classification provided a valuable tool to stratify neuroendocrine neoplasms (NENs) in three prognostic subgroups based on the proliferation index. However, substantial heterogeneity remains within these subgroups, and simplicity sometimes entails an ambiguous and imprecise prognostic stratification. The purpose of our study was to evaluate the prognostic impact of histological differentiation within the WHO 2010 grade (G) 1/G2/G3 categories, and explore additional Ki-67 cutoff values in GEP-NENs...
January 12, 2018: Oncologist
https://www.readbyqxmd.com/read/29329355/when-the-brain-changes-its-mind-oscillatory-dynamics-of-conflict-processing-and-response-switching-in-a-flanker-task-during-alcohol-challenge
#2
Lauren E Beaton, Sheeva Azma, Ksenija Marinkovic
Despite the subjective experience of being in full and deliberate control of our actions, our daily routines rely on a continuous and interactive engagement of sensory evaluation and response preparation streams. They unfold automatically and unconsciously and are seamlessly integrated with cognitive control which is mobilized by stimuli that evoke ambiguity or response conflict. Methods with high spatio-temporal sensitivity are needed to provide insight into the interplay between automatic and controlled processing...
2018: PloS One
https://www.readbyqxmd.com/read/29328880/relative-roles-of-race-versus-socioeconomic-position-in-studies-of-health-inequalities-a-matter-of-interpretation
#3
Amani M Nuru-Jeter, Elizabeth K Michaels, Marilyn D Thomas, Alexis N Reeves, Roland J Thorpe, Thomas A LaVeist
An abundance of research has documented health inequalities by race and socioeconomic position (SEP) in the United States. However, conceptual and methodological challenges complicate the interpretation of study findings, thereby limiting progress in understanding health inequalities and in achieving health equity. Fundamental to these challenges is a lack of clarity about what race is and the implications of that ambiguity for scientific inquiry. Additionally, there is wide variability in how SEP is conceptualized and measured, resulting in a lack of comparability across studies and significant misclassification of risk...
January 12, 2018: Annual Review of Public Health
https://www.readbyqxmd.com/read/29328521/the-central-vein-sign-differentiates-ms-from-cns-inflammatory-vasculopathies
#4
Pietro Maggi, Martina Absinta, Matteo Grammatico, Luisa Vuolo, Giacomo Emmi, Giovanna Carlucci, Gregorio Spagni, Alessandro Barilaro, Anna Maria Repice, Lorenzo Emmi, Domenico Prisco, Vittorio Martinelli, Roberta Scotti, Niloufar Sadeghi, Gaetano Perrotta, Pascal Sati, Bernard Dachy, Daniel S Reich, Massimo Filippi, Luca Massacesi
OBJECTIVES: In multiple sclerosis (MS), MRI is a sensitive tool for detecting white matter lesions, but its diagnostic specificity is still suboptimal; ambiguous cases are frequent in clinical practice. Detection of perivenular lesions in the brain (the "central vein sign") improves the pathological specificity of MS diagnosis, but comprehensive evaluation of this MRI biomarker in MS-mimicking inflammatory and/or autoimmune diseases, such as CNS inflammatory vasculopathies, is missing...
January 12, 2018: Annals of Neurology
https://www.readbyqxmd.com/read/29327214/interaction-effect-of-job-insecurity-and-role-ambiguity-on-psychological-distress-in-japanese-employees-a-cross-sectional-study
#5
Akiomi Inoue, Norito Kawakami, Hisashi Eguchi, Akizumi Tsutsumi
PURPOSE: We examined the interaction effect of job insecurity (JI) and role ambiguity (RA) on psychological distress in Japanese employees. METHODS: Overall, 2184 male and 805 female employees from two factories of a manufacturing company in Japan completed a self-administered questionnaire comprising the scales measuring JI (Job Content Questionnaire), RA (National Institute for Occupational Safety and Health Generic Job Stress Questionnaire), psychological distress (K6 scale), and potential confounders (i...
January 11, 2018: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/29326798/late-onset-hepatic-veno-occlusive-disease-after-allografting-report-of-two-cases-with-atypical-clinical-features-successfully-treated-with-defibrotide
#6
Alessia Castellino, Stefano Guidi, Chiara Maria Dellacasa, Antonella Gozzini, Irene Donnini, Chiara Nozzoli, Sara Manetta, Semra Aydin, Luisa Giaccone, Moreno Festuccia, Lucia Brunello, Enrico Maffini, Benedetto Bruno, Ezio David, Alessandro Busca
Hepatic Veno-Occlusive Disease (VOD) is a potentially severe complication of hematopoietic stem cell transplantation (HSCT). Here we report two patients receiving an allogeneic HSCT who developed late onset VOD with atypical clinical features. The two patients presented with only few risk factors, namely, advanced acute leukemia, a myeloablative busulphan-containing regimen and received grafts from an unrelated donor. The first patient did not experience painful hepatomegaly and weight gain and both patients showed only a mild elevation in total serum bilirubin level...
2018: Mediterranean Journal of Hematology and Infectious Diseases
https://www.readbyqxmd.com/read/29325795/insertional-mutagenesis-confounds-the-mechanism-of-the-morbid-phenotype-of-a-plnr9c-transgenic-mouse-line
#7
Alexander Kraev
BACKGROUND: A mouse line with heterozygous transgenic expression of phospholamban carrying a substitution of cysteine for arginine 9 (TgPLNR9C) under the control of α-myosin heavy chain (αMHC) promoter features dilated cardiomyopathy, heart failure and premature death. METHODS AND RESULTS: Determination of transgene chromosomal localization by conventional methods shows that in this line the transgenic array of 13 PLNR9C expression cassettes, arranged in a head-to-tail tandem orientation, has integrated into the bi-directional promoter of the αMHC (Myh6) gene and the gene for the regulatory non-coding RNA Myheart (Mhrt), both of which are known to be involved in cardiac development and pathology...
January 8, 2018: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/29325520/factors-associated-with-low-patient-satisfaction-in-out-of-hours-primary-care-in-denmark-a-population-based-cross-sectional-study
#8
Mette Tranberg, Peter Vedsted, Bodil Hammer Bech, Morten Bondo Christensen, Søren Birkeland, Grete Moth
BACKGROUND: Low patient satisfaction with the quality of out-of-hours primary care (OOH-PC) has been linked with several individual and organizational factors. However, findings have been ambiguous and may not apply to the Danish out-of-hours (OOH) setting in which general practitioners (GPs) perform the initial telephone triage. This study aimed to identify patient-related, GP-related and organizational factors associated with low patient satisfaction. METHODS: The study was based on data from a 1-year population-based survey of OOH-PC (LV-KOS) in the Central Denmark Region in 2010-2011...
January 11, 2018: BMC Family Practice
https://www.readbyqxmd.com/read/29324487/renal-replacement-therapy-in-critically-ill-patients-who-when-why-and-how
#9
Melanie Meersch, Alexander Zarbock
PURPOSE OF REVIEW: The increasing incidence of acute kidney injury has the immediate effect of a growing need for renal replacement therapy (RRT). Shedding light on the questions of who, when, why, and how RRT should be performed is difficult to accomplish because of ambiguous study results, poor quality evidence, and low standardization. RECENT FINDINGS: Critically ill patients are exposed to multiple factors known to deteriorate kidney function. Especially severe fluid overload is strongly associated with worse outcome and may be considered as a trigger for initiating RRT...
January 10, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29324451/aromatase-deficiency-due-to-a-homozygous-cyp19a1-mutation-in-a-46-xx-egyptian-patient-with-ambiguous-genitalia
#10
Inas Mazen, Ken McElreavey, Aya Elaidy, Alaa K Kamel, Mohamed S Abdel-Hamid
Aromatase deficiency (AD) is a very rare disorder resulting from mutations in the CYP19A1 gene encoding aromatase, a cytochrome P450 enzyme that plays a pivotal role in androgen conversion to estrogens. AD is inherited in an autosomal recessive trait, and to date only 35 cases have been described in the literature. Herein, we depict a new patient reared as a male, who presented at the age of 21 years with no palpable testis, hypoplastic scrotum, penis-like phallus (3 cm), and penoscrotal hypospadias. The patient was born to consanguineous parents, his karyotype was 46,XX, and SRY was negative...
January 12, 2018: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/29323742/a-molecular-dynamics-investigation-into-the-mechanisms-of-alectinib-resistance-of-three-alk-mutants
#11
Muyang He, Weikang Li, Qingchuan Zheng, Hongxing Zhang
Alectinib, a highly selective next-genetation anaplastic lymphoma kinase (ALK) inhibitor, has demonstrated promising antitumor activity in patients with ALK-positive non-small cell lung carcinomas (NSCLC). However, the therapeutic benefits of alectinib is inescapably hampered by the development of acquired resistant mutations in ALK. Despite the availability of ample experimental mutagenesis data, the molecular origin and the structural motifs under alectinib binding affinity deficiencies are still ambiguous...
January 11, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29322912/usage-of-cell-nomenclature-in-biomedical-literature
#12
Şenay Kafkas, Sirarat Sarntivijai, Robert Hoehndorf
BACKGROUND: Cell lines and cell types are extensively studied in biomedical research yielding to a significant amount of publications each year. Identifying cell lines and cell types precisely in publications is crucial for science reproducibility and knowledge integration. There are efforts for standardisation of the cell nomenclature based on ontology development to support FAIR principles of the cell knowledge. However, it is important to analyse the usage of cell nomenclature in publications at a large scale for understanding the level of uptake of cell nomenclature in literature by scientists...
December 21, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/29322796/pitfalls-of-contrast-enhanced-ultrasound-ceus-in-determination-of-breast-tumor-biological-dignity
#13
V Lehotska, K Rauova, L Vanovcanova
The aim of this prospective study was to identify characteristics of breast lesions on contrast enhanced ultrasound (CEUS) that can be a source of diagnostic ambiguity and cause under- or overestimation of examined breast lesions. 215 women (range 23-76 y., mean age 53.16 y) with 215 breast lesions were examined by B-mode ultrasound, followed by CEUS and core biopsy. CEUS parameters: degree of opacification, character of washout and preliminary CEUS result (suspicious, non-suspicious, uncertain) were subsequently correlated with histopathological outcomes...
2018: Neoplasma
https://www.readbyqxmd.com/read/29322493/the-struggle-for-via-bologna-street-market-crisis-racial-denial-and-speaking-back-to-power-in-naples-italy
#14
Antonia Dawes
This paper is based on ethnographic research conducted with migrant and Italian street vendors in Naples, southern Italy, in 2012. It tells the story of Via Bologna market which was nearly closed down by the City Hall at the time. Naples is a city where issues of poverty and unemployment pre-date and have been exacerbated by manifold narratives of crisis now unfolding across Europe regarding the economy, political legitimacy, security and migration. Street markets have always been an important and visible economic survival strategy for both Neapolitans and migrants there...
January 10, 2018: British Journal of Sociology
https://www.readbyqxmd.com/read/29321649/face-size-biases-emotion-judgment-through-eye-movement
#15
Shuo Wang
Faces are the most commonly used stimuli to study emotions. Researchers often manipulate the emotion contents and facial features to study emotion judgment, but rarely manipulate low-level stimulus features such as face sizes. Here, I investigated whether a mere difference in face size would cause differences in emotion judgment. Subjects discriminated emotions in fear-happy morphed faces. When subjects viewed larger faces, they had an increased judgment of fear and showed a higher specificity in emotion judgment, compared to when they viewed smaller faces...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321007/staging-laparoscopy-for-locally-advanced-gastric-cancer-in-chinese-patients-a-multicenter-prospective-registry-study
#16
Ziyu Li, Zhemin Li, Lianhai Zhang, Qian Liu, Zhenjun Wang, Zhongtao Zhang, Gang Xiao, Wei Fu, Xin Wang, Yingjiang Ye, Jianchun Yu, Fei Li, Lin Chen, Shibin Wang, Jiafu Ji
BACKGROUND: Staging laparoscopy(SL) is a recommended technique for the staging of Gastric Cancer(GC) and provides the indication for a radical surgery. Considering the medical practice in China, the standardized and regular usage of SL is yet to be spread. However, existing guidelines vary and make an ambiguity of indication for SL. Besides, the specific indication for Chinese patients remains a niche. This study aims to the essential, missing information of Chinese patients and tries to normalize the indication of LS in medical practice in China...
January 10, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29320783/wt1-gene-mutation-p-r462w-in-a-46-xy-dsd-patient-from-egypt-with-gonadoblastoma-and-review-of-the-literature
#17
Inas Mazen, Heba Hassan, Alaa Kamel, Mona Mekkawy, Ken McElreavey, Mona Essawi
WT1 gene mutations have been described in 46,XY patients with ambiguous genitalia or complete gonadal dysgenesis with or without Wilms' tumor, nephropathy, gonadoblastoma, and other defects, e.g., cryptorchidism or hypospadias. p.R462W is a hot spot mutation in exon 9 and is the most common mutation in patients with Denys-Drash syndrome. However, in this study we report an Egyptian patient with a novel phenotype carrying the p.R462W mutation. We also review the heterogeneity of phenotypes of previously reported patients with the p...
January 11, 2018: Sexual Development: Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation
https://www.readbyqxmd.com/read/29320760/a-standard-nomenclature-for-referencing-and-authentication-of-pluripotent-stem-cells
#18
REVIEW
Andreas Kurtz, Stefanie Seltmann, Amos Bairoch, Marie-Sophie Bittner, Kevin Bruce, Amanda Capes-Davis, Laura Clarke, Jeremy M Crook, Laurence Daheron, Johannes Dewender, Adam Faulconbridge, Wataru Fujibuchi, Alexander Gutteridge, Derek J Hei, Yong-Ou Kim, Jung-Hyun Kim, Anja Kolb- Kokocinski, Fritz Lekschas, Geoffrey P Lomax, Jeanne F Loring, Tenneille Ludwig, Nancy Mah, Tohru Matsui, Robert Müller, Helen Parkinson, Michael Sheldon, Kelly Smith, Harald Stachelscheid, Glyn Stacey, Ian Streeter, Anna Veiga, Ren-He Xu
Unambiguous cell line authentication is essential to avoid loss of association between data and cells. The risk for loss of references increases with the rapidity that new human pluripotent stem cell (hPSC) lines are generated, exchanged, and implemented. Ideally, a single name should be used as a generally applied reference for each cell line to access and unify cell-related information across publications, cell banks, cell registries, and databases and to ensure scientific reproducibility. We discuss the needs and requirements for such a unique identifier and implement a standard nomenclature for hPSCs, which can be automatically generated and registered by the human pluripotent stem cell registry (hPSCreg)...
January 9, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29318731/absence-of-the-drosophila-jump-muscle-actin-act79b-is-compensated-by-up-regulation-of-act88f
#19
Tracy E Dohn, Richard M Cripps
BACKGROUND: Actins are structural components of the cytoskeleton and muscle, and numerous actin isoforms are found in most organisms. However, many actin isoforms are expressed in distinct patterns allowing each actin to have a specialized function. Numerous studies have demonstrated that actin isoforms both can and cannot compensate for each other under specific circumstances. This allows for an ambiguity of whether isoforms are functionally distinct. RESULTS: In this study, we analyzed mutants of Drosophila Act79B, the predominant actin expressed in the adult jump muscle...
January 10, 2018: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/29317715/hybtrack-a-hybrid-single-particle-tracking-software-using-manual-and-automatic-detection-of-dim-signals
#20
Byung Hun Lee, Hye Yoon Park
Single particle tracking is a compelling technique for investigating the dynamics of nanoparticles and biological molecules in a broad range of research fields. In particular, recent advances in fluorescence microscopy have made single molecule tracking a prevalent method for studying biomolecules with a high spatial and temporal precision. Particle tracking algorithms have matured over the past three decades into more easily accessible platforms. However, there is an inherent difficulty in tracing particles that have a low signal-to-noise ratio and/or heterogeneous subpopulations...
January 9, 2018: Scientific Reports
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