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https://www.readbyqxmd.com/read/28100566/loss-of-axin1-drives-acquired-resistance-to-wnt-pathway-blockade-in-colorectal-cancer-cells-carrying-rspo3-fusions
#1
Gabriele Picco, Consalvo Petti, Alessia Centonze, Erica Torchiaro, Giovanni Crisafulli, Luca Novara, Andrea Acquaviva, Alberto Bardelli, Enzo Medico
In colorectal cancer (CRC), WNT pathway activation by genetic rearrangements of RSPO3 is emerging as a promising target. However, its low prevalence severely limits availability of preclinical models for in-depth characterization. Using a pipeline designed to suppress stroma-derived signal, we find that RSPO3 "outlier" expression in CRC samples highlights translocation and fusion transcript expression. Outlier search in 151 CRC cell lines identified VACO6 and SNU1411 cells as carriers of, respectively, a canonical PTPRK(e1)-RSPO3(e2) fusion and a novel PTPRK(e13)-RSPO3(e2) fusion...
January 18, 2017: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/28099407/effects-of-functional-cyp2c8-cyp2c9-cyp3a5-and-abcb1-genetic-variants-on-the-pharmacokinetics-of-insulin-sensitizer-pioglitazone-in-chinese-han-individuals
#2
Sheng-Ju Yin, Hui-Min Qi, Xin Wang, Pu Zhang, Yuan Lu, Min-Ji Wei, Pu Li, Guang-Zhao Qi, Ya-Qing Lou, Chuang Lu, Guo-Liang Zhang
BACKGROUND AND OBJECTIVES: Pioglitazone is a thiazolidinedione antihyperglycemic drug with insulin-sensitizing properties. We investigated whether the variant genotypes of cytochrome P450 2C8 (CYP2C8), CYP2C9, CYP3A5 and transporter ABCB1 influence the pharmacokinetic phenotype of the substrate pioglitazone in Chinese individuals. PARTICIPANTS AND METHODS: Single-nucleotide polymorphisms were determined by the PCR-restriction fragment length polymorphism method in 244 (CYP2C8 and CYP2C9) healthy Chinese Han individuals...
January 17, 2017: Pharmacogenetics and Genomics
https://www.readbyqxmd.com/read/28098866/in-vitro-long-term-treatment-with-mapk-inhibitors-induces-melanoma-cells-with-resistance-plasticity-to-inhibitors-while-retaining-sensitivity-to-cd8-t-cells
#3
Florencia Paula Madorsky Rowdo, Antonela Barón, Erika María von Euw, José Mordoh
The development of BRAF V600 and MEK inhibitors constitutes a breakthrough in the treatment of patients with BRAF-mutated metastatic melanoma. However, although there is an increase in overall survival, these patients generally confront recurrence, and several resistance mechanisms have already been described. In the present study we describe a different resistance mechanism. After several weeks of long‑term in vitro treatment of two different V600E BRAF‑mutated melanoma cell lines with MARK inhibitors, PLX4032 and/or GDC-0973, the majority of the cells died whereas some remained viable and quiescent (SUR)...
January 13, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28096045/early-detection-of-left-ventricular-dysfunction-in-first-degree-relatives-of-diabetic-patients-by-myocardial-deformation-imaging-the-role-of-endothelial-glycocalyx-damage
#4
Ignatios Ikonomidis, George Pavlidis, Vaia Lambadiari, Fotini Kousathana, Maria Varoudi, Filio Spanoudi, Eirini Maratou, John Parissis, Helen Triantafyllidi, George Dimitriadis, John Lekakis
BACKGROUND: First-degree relatives of type-2 diabetes patients (FDR) present insulin resistance. We investigated whether FDR and dysglycaemic subjects demonstrate abnormal endothelial glycocalyx and LV deformation during postprandial hyperglycemia. METHODS: We studied 40 FDR with normal oral glucose test (OGTT), 40 subjects with abnormal OGTT (dysglycaemic) and 20 subjects with normal OGTT without parental history of diabetes (normoglycaemic). At 0 and 120min of OGTT we measured: a) LV longitudinal strain (LS) of subendocardial, mid-myocardial and subepicardial layers, global LS (GLS), peak twisting (pTw), untwisting velocity (pUtwVel), by speckle tracking echocardiography b) perfused boundary region (PBR) of the sublingual arterial microvessels; high PBR values represent reduced glycocalyx thickness...
January 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28095833/lifetime-and-12-month-prevalence-of-eating-disorders-amongst-women-in-mid-life-a-population-based-study-of-diagnoses-and-risk-factors
#5
Nadia Micali, Maria G Martini, Jennifer J Thomas, Kamryn T Eddy, Radha Kothari, Ellie Russell, Cynthia M Bulik, Janet Treasure
BACKGROUND: Eating disorders (EDs) are common amongst women; however, no research has specifically investigated the lifetime/12-month prevalence of eating disorders amongst women in mid-life (i.e., fourth and fifth decade of life) and the relevant longitudinal risk factors. We aimed to investigate the lifetime and 12-month prevalence of EDs and lifetime health service use and to identify childhood, parenting, and personality risk factors. METHODS: This is a two-phase prevalence study, nested within an existing longitudinal community-based sample of women in mid-life...
January 17, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28095184/ecotoxicological-effects-of-larvicide-used-in-the-control-of-aedes-aegypti-on-nontarget-organisms-redefining-the-use-of-pyriproxyfen
#6
Vanessa Santana Vieira Santos, Evelyn Siqueira Caixeta, Edimar Olegário de Campos Júnior, Boscolli Barbosa Pereira
The continued widespread use of larvicides in Aedes aegypti control programs is still a necessary strategy, since there are no apparent efficient vaccines against arboviruses. However, chemical approaches may affect nontarget organisms and produce detrimental effects to environmental health. Therefore, the aim of this study was to conduct toxicity testing for pyriproxyfen at different concentrations using Daphnia magna and Artemia salina as model organisms to evaluate the ecotoxicological parameters. This study describes the toxicological effects of pyriproxyfen on both microcrustaceans, which are widely used in bioassays because of their sensitivity to changes in hydrosphere...
January 17, 2017: Journal of Toxicology and Environmental Health. Part A
https://www.readbyqxmd.com/read/28095113/quantitative-analysis-of-cell-surface-antigen-antibody-interaction-using-gaussia-princeps-luciferase-antibody-fusion-proteins
#7
Juliane Kums, Johannes Nelke, Benedikt Rüth, Viktoria Schäfer, Daniela Siegmund, Harald Wajant
Cell surface antigen-specific antibodies are of substantial diagnostic and therapeutic importance. The binding properties of such antibodies are usually evaluated by cell-free assays, in particular surface plasmon resonance (SPR) analysis, or flow cytometry. SPR analyses allow the detailed quantitative and dynamic evaluation of the binding properties of antibodies, but need purified, typically recombinantly produced antigens. It can, however, be difficult to produce the required antigen. Furthermore, cellular factors influencing the antigen-antibody interaction are not considered by this method...
January 17, 2017: MAbs
https://www.readbyqxmd.com/read/28093220/increased-oxytocin-levels-among-abstinent-heroin-addicts-association-with-aggressiveness-psychiatric-symptoms-and-perceived-childhood-neglect
#8
Lidia M Gerra, Gilberto Gerra, Laura Mercolini, Matteo Manfredini, Lorenzo Somaini, Chiara M Pieri, Maina Antonioni, Michele Protti, Paolo Ossola, Carlo Marchesi
A disruption of the oxytocin system seems to affect a variety of brain functions including emotions, mood and social behavior possibly underlying severe social deficits and susceptibility for substance use and mental health disorders. Early life adversity, such as insecure attachment in childhood, has been suggested to influence oxytocin tone contributing to a condition of neurobiological vulnerability. Aim of the present study was to investigate oxytocin serum levels in abstinent heroin addicted patients, in comparison with healthy controls, and the possible correlation with co-occurring psychiatric symptoms, aggressiveness and perception of parental neglect...
January 13, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28091953/fullerene-c60-penetration-into-leukemic-cells-and-its-photoinduced-cytotoxic-effects
#9
D Franskevych, K Palyvoda, D Petukhov, S Prylutska, I Grynyuk, C Schuetze, L Drobot, O Matyshevska, U Ritter
Fullerene C60 as a representative of carbon nanocompounds is suggested to be promising agent for application in photodynamic therapy due to its unique physicochemical properties. The goal of this study was to estimate the accumulation of fullerene C60 in leukemic cells and to investigate its phototoxic effect on parental and resistant to cisplatin leukemic cells. Stable homogeneous water colloid solution of pristine C60 with average 50-nm diameter of nanoparticles was used in experiments. Fluorescent labeled C60 was synthesized by covalent conjugation of C60 with rhodamine B isothiocyanate...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28091879/new-medical-therapies-on-the-horizon-oral-octreotide
#10
REVIEW
Nienke R Biermasz
Somatostatin analog treatment is first line medical treatment in patients with acromegaly. This drug is currently mainly administered by monthly depot preparations of octreotide and lanreotide. With the innovative transient permeability enhancer, a technology enabling the absorption of drug molecules via transient opening of the tight junctions of the gut epithelium, it is possible to achieve therapeutic octreotide levels after oral ingestion. The present review summarized the preclinical work and the recently reported phase I and III study on oral octreotide capsules in patients with acromegaly...
January 16, 2017: Pituitary
https://www.readbyqxmd.com/read/28089657/autism-spectrum-disorder-in-the-scope-of-tactile-processing
#11
REVIEW
Mark Mikkelsen, Ericka L Wodka, Stewart H Mostofsky, Nicolaas A J Puts
Sensory processing abnormalities are among the most common behavioral phenotypes seen in autism spectrum disorder (ASD), typically characterized by either over- or under-responsiveness to stimulation. In this review, we focus on tactile processing dysfunction in ASD. We firstly review clinical studies wherein sensitivity to tactile stimuli has traditionally been assessed by self-, parent- and experimenter-reports. We also discuss recent investigations using psychophysical paradigms that gauge individual tactile thresholds...
December 23, 2016: Developmental Cognitive Neuroscience
https://www.readbyqxmd.com/read/28088053/sensitivity-and-specificity-of-the-gain-short-screener-for-predicting-substance-use-disorders-in-a-large-national-sample-of-emerging-adults
#12
Douglas C Smith, Kyle M Bennett, Michael L Dennis, Rodney R Funk
BACKGROUND AND OBJECTIVES: Emerging Adults (ages 18-25) have the highest prevalence of substance use disorders and rarely receive treatment from the specialty care system. Thus, it is important to have screening instruments specifically developed for emerging adults for use in Screening, Brief Intervention and Referral to Treatment (SBIRT) models. Optimal cutoffs for the widely-used GAIN Short-Screener's (GAIN-SS) Substance Disorder Screener (SDScrY) are not established specifically for emerging adults...
January 6, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28080081/the-heart-of-parenting-parent-hr-dynamics-and-negative-parenting-while-resolving-conflict-with-child
#13
Xutong Zhang, Lixian Cui, Zhuo Rachel Han, Jia Yan
The current study examined parent heart rate (HR) dynamic changing patterns and their links to observed negative parenting (i.e., emotional unavailability and psychological control) during a parent-child conflict resolution task among 150 parent-child dyads (child age ranged from 6 to 12 years, Mage = 8.54 ± 1.67). Parent HR was obtained from electrocardiogram (ECG) data collected during the parent-child conflict resolution task. Negative parenting was coded offline based on the video recording of the same task...
January 12, 2017: Journal of Family Psychology: JFP
https://www.readbyqxmd.com/read/28077686/evolution-of-iris-colour-in-relation-to-cavity-nesting-and-parental-care-in-passerine-birds
#14
Gabrielle L Davidson, Alex Thornton, Nicola S Clayton
Strong selection pressures are known to act on animal coloration. Although many animals vary in eye colour, virtually no research has investigated the functional significance of these colour traits. Passeriformes have a range of iris colours, making them an ideal system to investigate how and why iris colour has evolved. Using phylogenetic comparative methods, we tested the hypothesis that conspicuous iris colour in passerine birds evolved in response to (a) coordination of offspring care and (b) cavity nesting, two traits thought to be involved in intra-specific gaze sensitivity...
January 2017: Biology Letters
https://www.readbyqxmd.com/read/28076922/evaluating-active-parental-consent-procedures-for-school-programming-addressing-the-sensitive-topic-of-suicide-prevention
#15
Christine M Wienke Totura, Krista Kutash, Christa D Labouliere, Marc S Karver
BACKGROUND: Suicide is the second leading cause of death for adolescents. Whereas school-based prevention programs are effective, obtaining active consent for youth participation in public health programming concerning sensitive topics is challenging. We explored several active consent procedures for improving participation rates. METHODS: Five active consent methods (in-person, students taking forms home, mailing, mailing preceded by primers, mailing followed by reminder calls) were compared against passive consent procedures to evaluate recruitment success, as determined by participation (proportion who responded yes) and response (proportion who returned any response) rates...
February 2017: Journal of School Health
https://www.readbyqxmd.com/read/28076664/sensitization-predicts-asthma-development-among-wheezing-toddlers-in-secondary-healthcare
#16
Nienke A Boersma, Ruud W H Meijneke, Johannes C Kelder, Cornelis K van der Ent, Walter A F Balemans
INTRODUCTION: Some wheezing toddlers develop asthma later in childhood. Sensitization is known to predict asthma in birth cohorts. However, its predictive value in secondary healthcare is uncertain. AIM: This study examines the predictive value of sensitization to inhalant allergens among wheezing toddlers in secondary healthcare for the development of asthma at school age (≥6 years). METHODS: Preschool children (1-3 years) who presented with wheezing in secondary healthcare were screened on asthma at school age with the International Study of Asthma and Allergies in Childhood questionnaire...
January 11, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28075619/role-of-ct-in-the-diagnosis-of-nonspecific-abdominal-pain-a-multicenter-analysis
#17
Jonathan D Eisenberg, Andrew T Reisner, William D Binder, Atif Zaheer, Martin L Gunn, Ken F Linnau, Chad M Miller, Angela C Tramontano, Maurice S Herring, Emily C Dowling, Elkan F Halpern, Karen Donelan, G Scott Gazelle, Pari V Pandharipande
OBJECTIVE: The objective of our study was to determine whether specific patient and physician factors-known before CT-are associated with a diagnosis of nonspecific abdominal pain (NSAP) after CT in the emergency department (ED). MATERIALS AND METHODS: We analyzed data originally collected in a prospective multicenter study. In the parent study, we identified ED patients referred to CT for evaluation of abdominal pain. We surveyed their physicians before and after CT to identify changes in leading diagnoses, diagnostic confidence, and admission decisions...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28074905/mir-488-inhibits-proliferation-and-cisplatin-sensibility-in-non-small-cell-lung-cancer-nsclc-cells-by-activating-the-eif3a-mediated-ner-signaling-pathway
#18
Chao Fang, Yi-Xin Chen, Na-Yiyuan Wu, Ji-Ye Yin, Xiang-Ping Li, Hsuan-Shun Huang, Wei Zhang, Hong-Hao Zhou, Zhao-Qian Liu
Our previous studied indicated that eukaryotic translation initiation factor 3a (eIF3a) increases the sensitive of platinum-based chemotherapy in lung cancer. MiRNAs play an important role in lung carcinogenesis and drug response. In this study, we aimed to identify potential endogenous miRNAs that inhibit eIF3a expression and determine their influence of this inhibition on cisplatin resistance. Using bioinformatics analysis prediction and confirmation with dual-luciferase reporter assays, we found that miRNA-488 inhibited eIF3a expression by directly binding to the 3'UTR of eIF3a...
January 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28072039/a-mother-s-borderline-personality-disorder-and-her-sensitivity-autonomy-support-hostility-fearful-disoriented-behavior-and-role-reversal-with-her-young-child
#19
Jenny Macfie, Gretchen Kurdziel, Rebecca M Mahan, Stephanie Kors
There is some evidence that maternal borderline personality disorder (BPD) adversely affects parenting in infancy, resulting in disorganized attachment, which longitudinally predicts BPD symptoms in adulthood. We examined parenting related to disorganized attachment beyond infancy in offspring of mothers with BPD, when parenting becomes a goal-corrected partnership. We observed puzzle solving in a low socioeconomic status (SES) sample of mothers with BPD and their children ages 4-7, n = 36, and normative comparisons, n = 34...
January 10, 2017: Journal of Personality Disorders
https://www.readbyqxmd.com/read/28070759/qtls-for-heading-date-and-plant-height-under-multiple-environments-in-rice
#20
Zhongmin Han, Wei Hu, Cong Tan, Yongzhong Xing
Both heading date and plant height are important traits related to grain yield in rice. In this study, a recombinant inbred lines (RILs) population was used to map quantitative trait loci (QTLs) for both traits under 3 long-day (LD) environments and 1 short-day (SD) environment. A total of eight QTLs for heading date and three QTLs for plant height were detected by composite interval mapping under LD conditions. Additional one QTL for heading date and three QTLs for plant height were identified by Two-QTL model under LD conditions...
January 9, 2017: Genetica
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