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Relational aggression

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https://www.readbyqxmd.com/read/29149419/changes-in-chromatin-state-reveal-arnt2-at-a-node-of-a-tumorigenic-transcription-factor-signature-driving-glioblastoma-cell-aggressiveness
#1
Alexandra Bogeas, Ghislaine Morvan-Dubois, Elias A El-Habr, François-Xavier Lejeune, Matthieu Defrance, Ashwin Narayanan, Klaudia Kuranda, Fanny Burel-Vandenbos, Salwa Sayd, Virgile Delaunay, Luiz G Dubois, Hugues Parrinello, Stéphanie Rialle, Sylvie Fabrega, Ahmed Idbaih, Jacques Haiech, Ivan Bièche, Thierry Virolle, Michele Goodhardt, Hervé Chneiweiss, Marie-Pierre Junier
Although a growing body of evidence indicates that phenotypic plasticity exhibited by glioblastoma cells plays a central role in tumor development and post-therapy recurrence, the master drivers of their aggressiveness remain elusive. Here we mapped the changes in active (H3K4me3) and repressive (H3K27me3) histone modifications accompanying the repression of glioblastoma stem-like cells tumorigenicity. Genes with changing histone marks delineated a network of transcription factors related to cancerous behavior, stem state, and neural development, highlighting a previously unsuspected association between repression of ARNT2 and loss of cell tumorigenicity...
November 17, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/29149251/parental-age-and-risk-of-lymphoid-neoplasms
#2
Gunnar Larfors, Ingrid Glimelius, Sandra Eloranta, Karin E Smedby
High parental age at childbirth has repeatedly been linked to childhood malignancies, while few studies have focused on the offspring's risk of adult cancer. In this population-based case-control study, we identified 32,000 patients with lymphoid neoplasms, diagnosed at ages 0-79 years during the period 1987-2011, and 160,000 matched controls in Sweden. Using prospectively registered data on their first-degree relatives, we evaluated the impact of parental age on the risk of lymphoid neoplasms by subtype. Overall, each 5-year increment in maternal age was associated with a 3% increase in incidence of offspring lymphoid neoplasms (hazard ratio = 1...
November 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/29148418/infliximab-for-uveitis-of-beh%C3%A3-et-s-syndrome-a-trend-for-earlier-initiation
#3
Gul Guzelant, Didar Ucar, Sinem Nihal Esatoglu, Gulen Hatemi, Yilmaz Ozyazgan, Sebahattin Yurdakul, Emire Seyahi, Hasan Yazici, Vedat Hamuryudan
OBJECTIVES: The prognosis of uveitis in Behçet's syndrome (BS) has improved over decades. Whether this is related to the use of more aggressive management strategies is not known. METHODS: This is a retrospective study of BS patients who received infliximab (IFX) for refractory eye disease between 2003-2015. The patients were divided into two groups according to the date of onset of in IFX treatment as before and after 2013. We compared the two groups in terms of disease characteristics at the onset of IFX treatment and response to treatment...
October 24, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/29148290/single-centre-experience-with-the-impella-cp-5-0-and-rp-in-109-consecutive-patients-with-profound-cardiogenic-shock
#4
Peter Blom Jensen, Sigrun Høegholm Kann, Karsten Tange Veien, Ole Kristian Møller-Helgestad, Jordi Sanchez Dahl, Charlotte Svejstrup Rud, Marianne Kjær Jensen, Lisette Okkels Jensen, Henrik Schmidt, Jacob Eifer Møller
RATIONALE: Short-term mechanical circulatory support is increasingly used in the management of cardiogenic shock, but data from controlled studies are sparse. Thus, real-life data on complication rates and predictors of adverse outcome are important. OBJECTIVE: The objective of this study was to analyse the experience with Impella devices in the management of profound cardiogenic shock. METHODS AND RESULTS: A retrospective study of 109 consecutive patients with severe shock after myocardial infarction, acute heart failure, or cardiac surgery...
November 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/29147838/the-reactive-proactive-aggression-questionnaire-measurement-invariance-and-reliability-among-a-school-sample-of-portuguese-youths
#5
Pedro Pechorro, Lara Ayala-Nunes, Rachel Kahn, Cristina Nunes
Aggression is an important risk factor for various forms of problem behaviors in adolescence, and research has often distinguished between reactive and proactive forms of aggression. The aim of the present study was to compare the psychometric properties (i.e., structural invariance, internal consistency, and criterion validity) of the Reactive-Proactive Aggression Questionnaire (RPQ) between males and females among a mixed-gender school sample of 782 Portuguese youth (M = 15.87 years, SD = 1.72). Confirmatory factor analysis revealed that a two-factor first-order structure obtained the best fit and cross-gender measurement invariance was demonstrated after excluding item 21...
November 17, 2017: Child Psychiatry and Human Development
https://www.readbyqxmd.com/read/29146222/nursing-staff-distress-associated-with-neuropsychiatric-symptoms-in-young-onset-dementia-and-late-onset-dementia
#6
Jeannette C L van Duinen-van den IJssel, Ans J M J Mulders, Martin Smalbrugge, Sandra A Zwijsen, Britt Appelhof, Syste U Zuidema, Marjolein E de Vugt, Frans R J Verhey, Christian Bakker, Raymond T C M Koopmans
OBJECTIVE: The aims of this study were (1) to investigate the relationship between different neuropsychiatric symptoms (NPS) and the level of distress experienced by nurses caring for residents with young-onset dementia (YOD) and (2) to compare these findings with those for nurses caring for residents with late-onset dementia (LOD). DESIGN/SETTING: This is a retrospective study conducted in Dutch long-term care facilities. Data were used from the Behavior and Evolution of Young-ONset Dementia studies (BEYOND) Parts I and II and the WAAL Behavior in Dementia-II (Waalbed-II) study...
November 14, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/29145802/effectiveness-of-current-and-future-regimens-for-treating-genotype-3-hepatitis-c-virus-infection-a-large-scale-systematic-review
#7
Hosnieh Fathi, Andrew Clark, Nathan R Hill, Geoffrey Dusheiko
BACKGROUND: Six distinct genetic variants (genotypes 1 - 6) of hepatitis C virus (HCV) exist globally. Certain genotypes are more prevalent in particular countries or regions than in others but, globally, genotype 3 (GT3) is the second most common. Patients infected with HCV GT1, 2, 4, 5 or 6 recover to a greater extent, as measured by sustained virological response (SVR), following treatment with regimens based on direct-acting antivirals (DAAs) than after treatment with older regimens based on pegylated interferon (Peg-IFN)...
November 16, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29144823/the-relationship-of-braf-v600e-mutation-status-to-fdg-pet-ct-avidity-in-thyroid-cancer-a-review-and-meta-analysis
#8
Prasanna Santhanam, Rodhan Khthir, Lilja B Solnes, Paul W Ladenson
OBJECTIVES: Papillary thyroid cancers harboring BRAF (V600E) gene mutation have been shown to exhibit aggressive tumor behaviors and higher risks of recurrence and disease-specific death. In this systematic review and meta-analysis, we examine and report published evidence related to the accuracy of FDG-PET-CT in detection of residual disease in patients' with BRAF (V600E) mutated thyroid cancer. METHODS: We extracted data from PUBMED/MEDLINE and EMBASE from January, 1995 to March, 2017...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29143486/violent-behaviour-in-early-psychosis-patients-can-we-identify-clinical-risk-profiles
#9
Valerie Moulin, Julie Palix, Philippe Golay, Alexandre Dumais, Mohammad Mehdi Gholamrezaee, Agathe Azzola, Philipp S Baumann, Luis Alameda, Philippe Conus
AIMS: The objective of this study is to explore, within a sample of early psychosis patients (EPP), if subgroups regarding rate of violent behaviour (VB) against others can be identified on the basis of dynamic risk factors (treatment modifiable characteristics). METHODS: In a sample of 265 EPP, treated at the Treatment and Early Intervention in Psychosis Program in Lausanne, we conducted a latent-class analysis on the basis of the main dynamic VB risk factors (substance use disorder [SUD], positive symptoms, insight, and impulsivity)...
November 15, 2017: Early Intervention in Psychiatry
https://www.readbyqxmd.com/read/29143339/cell-death-pathways-associated-with-photodynamic-therapy-an-update
#10
David Kessel, Nancy L Oleinick
Photodynamic therapy (PDT) has the potential to make a significant impact on cancer treatment. PDT can sensitize malignant tissues to light, leading to a highly selective effect if an appropriate light dose can be delivered. Variations in light distribution and drug delivery, along with impaired efficacy in hypoxic regions, can reduce the overall tumor response. There is also evidence that malignant cells surviving PDT may become more aggressive than the initial tumor population. Promotion of more effective direct tumor eradication is therefore an important goal...
November 16, 2017: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29143301/potentially-inappropriate-medication-use-in-elderly-non-hodgkin-lymphoma-patients-is-associated-with-reduced-survival-and-increased-toxicities
#11
Richard J Lin, Helen Ma, Robin Guo, Andrea B Troxel, Catherine S Diefenbach
Survival outcomes for elderly lymphoma patients are disproportionally inferior to those of younger patients. We examined medication usage at diagnosis for 171 elderly patients (median age 70 years) with aggressive non-Hodgkin lymphoma treated between 2009 and 2014. At least one potentially inappropriate medication was used in 47% of patients according to the Beers Criteria, 59% experienced treatment delays and/or dose reduction and 65% experienced ≥ grade 3 treatment-related toxicities. We report here for the first time that potentially inappropriate medication use was associated with reduced progression-free survival and overall survival, and increased ≥ grade 3 treatment-related toxicities in multivariate analysis...
November 16, 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/29142892/evaluation-of-mir-362-expression-in-astrocytoma-of-human-brain-tumors
#12
Majid Kheirollahi, Mahdiye Moodi, Saeideh Ashouri, Parvaneh Nikpour, Mohammad Kazemi
Background: Patients affected by gliomas have a poor prognosis. Astrocytoma is a subtype of glioma. Identification of biomarkers could be an effective way to an early diagnosis of tumor or to distinguish more aggressive tumors that need more intensive therapy. In this study, we investigated whether the expression of miR-362 was increased or decreased in patients with different grades of astrocytoma. Materials and Methods: miR-362 expression was compared in 25 patients with astrocytoma with that of 4 normal nonneoplastic brain tissues...
2017: Advanced Biomedical Research
https://www.readbyqxmd.com/read/29142787/sleep-apnea-symptoms-and-cardiovascular-disease-risks-among-haitian-medical-students
#13
Diana M Rosenthal, Donaldson F Conserve, Dodley Severe, Michaele A Gedeon, Ferdinand Zizi, Georges Casimir, Samy I McFarlane, Girardin Jean Louis
Sleep apnea is a prevalent sleep disorder that disproportionately affects blacks and has been previously studied among Caribbean-born blacks in Brooklyn, New York, but there has been negligible research in the Caribbean, specifically Haiti, and developing countries on this pressing health issue. A total of 373 medical students (mean age=20.6 years ± 2.3 years) from a medical school in Haiti participated in this study. Participants were administered a questionnaire assessing their sleep health and cardiovascular outcomes...
April 2017: Journal of Sleep Disorders & Therapy
https://www.readbyqxmd.com/read/29142114/female-vervet-monkeys-fine-tune-decisions-on-tolerance-versus-conflict-in-a-communication-network
#14
Christèle Borgeaud, Alessandra Schnider, Michael Krützen, Redouan Bshary
Group living promotes opportunities for both cooperation and competition. Selection on the ability to cope with such opposing social opportunities has been proposed as a driving force in the evolution of large brains in primates and other social species. However, we still know little about the degree of complexity involved in such social strategies. Here, we report advanced social strategies in wild vervet monkeys. Building on recent experimental evidence that subordinate females trade grooming for tolerance from higher-ranking individuals during foraging activities, we show that the audience composition strongly affects this trade...
November 29, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29141394/proximal-resection-margins-more-prognostic-than-distal-resection-margins-in-patients-undergoing-hilar-cholangiocarcinoma-resection
#15
Tae Yoo, Sang-Jae Park, Sung-Sik Han, Seong Hoon Kim, Seung Duk Lee, Tae Hyun Kim, Soon-Ae Lee, Sang Myung Woo, Woo Jin Lee, Eun Kyung Hong
Purpose: Even though the therapeutic gold standard of hilar cholangiocarcinoma(HCCA) resection is cancer-free resection margin(RM), surgical treatment still remains challenging. This study evaluated the prognostic significance of RM status in resected HCCA patients and identified survival prognostic factors. Materials and Methods: We reviewed records of 96 HCCA patients who underwent surgery from 2001 to 2012 and analyzed the RM status and prognostic factors that affecting survival...
November 16, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29140563/-stink-flirting-in-ring-tailed-lemurs-lemur-catta-male-olfactory-displays-to-females-as-honest-costly-signals
#16
Amber D Walker-Bolton, Joyce A Parga
Sexual selection for honest behavioral displays of quality has driven the development of remarkably complex courtship behavior in many animal species. Olfactory displays are often overlooked as an area of inquiry compared to auditory and visual displays. Ring-tailed lemur (Lemur catta) scent marking of substrates has been studied extensively, although the male olfactory displays of anointing and wafting tails to females has received relatively little attention. We studied the role of male olfactory displays to females, evaluating whether such signals function as honest, costly signals of male dominance status in two groups of wild L...
November 15, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/29140552/the-influence-of-phylogeny-social-style-and-sociodemographic-factors-on-macaque-social-network-structure
#17
Krishna N Balasubramaniam, Brianne A Beisner, Carol M Berman, Arianna De Marco, Julie Duboscq, Sabina Koirala, Bonaventura Majolo, Andrew J MacIntosh, Richard McFarland, Sandra Molesti, Hideshi Ogawa, Odile Petit, Gabriele Schino, Sebastian Sosa, Cédric Sueur, Bernard Thierry, Frans B M de Waal, Brenda McCowan
Among nonhuman primates, the evolutionary underpinnings of variation in social structure remain debated, with both ancestral relationships and adaptation to current conditions hypothesized to play determining roles. Here we assess whether interspecific variation in higher-order aspects of female macaque (genus: Macaca) dominance and grooming social structure show phylogenetic signals, that is, greater similarity among more closely-related species. We use a social network approach to describe higher-order characteristics of social structure, based on both direct interactions and secondary pathways that connect group members...
November 15, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/29140543/infant-mortality-in-white-faced-capuchins-the-impact-of-alpha-male-replacements
#18
Lauren F Brasington, Eva C Wikberg, Shoji Kawamura, Linda M Fedigan, Katharine M Jack
Infanticide is common in the context of alpha male replacements (AMR), particularly in groups where alpha males experience high reproductive skew and the infants are unlikely to be related to a new alpha male. We examined the relationship between the rate of infant mortality, infant age, and the occurrence and type of AMR in white-faced capuchin monkeys (Cebus capucinus imitator) of the Santa Rosa population in Sector Santa Rosa, Área de Conservación Guanacaste. Specifically, we investigated how the source of the new alpha male (coresident or extragroup) and relative aggression level during AMRs influenced infant mortality in this species...
November 15, 2017: American Journal of Primatology
https://www.readbyqxmd.com/read/29140113/prediction-of-pancreatic-neuroendocrine-tumor-grade-based-on-ct-features-and-texture-analysis
#19
Rodrigo Canellas, Kristine S Burk, Anushri Parakh, Dushyant V Sahani
OBJECTIVE: The purposes of this study were to assess whether CT texture analysis and CT features are predictive of pancreatic neuroendocrine tumor (PNET) grade based on the World Health Organization (WHO) classification and to identify features related to disease progression after surgery. MATERIALS AND METHODS: Preoperative contrast-enhanced CT images of 101 patients with PNETs were assessed. The images were evaluated for tumor location, tumor size, tumor pattern, predominantly solid or cystic composition, presence of calcification, presence of heterogeneous enhancement on contrast-enhanced images, presence of pancreatic duct dilatation, presence of pancreatic atrophy, presence of vascular involvement by the tumor, and presence of lymphadenopathy...
November 15, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29138748/identifying-novel-glioma-associated-noncoding-rnas-by-their-expression-profiles
#20
Alenka Matjašič, Mojca Tajnik, Emanuela Boštjančič, Mara Popović, Boštjan Matos, Damjan Glavač
Long noncoding RNAs (lncRNAs) and microRNAs (miRNAs) play a significant role in cancer development as regulators of protein-coding genes. Their dysregulation was in some extent already associated with glioma, the most aggressive primary brain tumours in adults. The correct diagnosis and treatment selection due to high tumour heterogeneity might be difficult and inadequate, resulting in poor prognosis. Studies of expression patterns of noncoding RNAs (ncRNAs) could provide useful insight in glioma molecular development...
2017: International Journal of Genomics
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