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https://www.readbyqxmd.com/read/28093350/a-visual-screen-for-diet-regulated-proteins-in-the-drosophila-ovary-using-gfp-protein-trap-lines
#1
Hwei-Jan Hsu, Daniela Drummond-Barbosa
The effect of diet on reproduction is well documented in a large number of organisms; however, much remains to be learned about the molecular mechanisms underlying this connection. The Drosophila ovary has a well described, fast and largely reversible response to diet. Ovarian stem cells and their progeny proliferate and grow faster on a yeast-rich diet than on a yeast-free (poor) diet, and death of early germline cysts, degeneration of early vitellogenic follicles and partial block in ovulation further contribute to the ∼60-fold decrease in egg laying observed on a poor diet...
January 13, 2017: Gene Expression Patterns: GEP
https://www.readbyqxmd.com/read/28073897/identification-of-alk-ros1-and-ret-fusions-by-a-multiplexed-mrna-based-assay-in-formalin-fixed-paraffin-embedded-samples-from-advanced-non-small-cell-lung-cancer-patients
#2
Noemí Reguart, Cristina Teixidó, Ana Giménez-Capitán, Laia Paré, Patricia Galván, Santiago Viteri, Sonia Rodríguez, Vicente Peg, Erika Aldeguer, Nuria Viñolas, Jordi Remon, Niki Karachaliou, Esther Conde, Fernando Lopez-Rios, Ernest Nadal, Sabine Merkelbach-Bruse, Reinhard Büttner, Rafael Rosell, Miguel A Molina-Vila, Aleix Prat
BACKGROUND: Anaplastic lymphoma receptor tyrosine kinase (ALK), ROS protooncogene 1, receptor tyrosine kinase (ROS1), and ret protooncogene (RET) fusions are present in 5%-7% of patients with advanced non-small-cell lung cancer (NSCLC); their accurate identification is critical to guide targeted therapies. FISH and immunohistochemistry (IHC) are considered the gold standards to determine gene fusions, they have limitations. The nCounter platform is a potentially useful genomic tool for multiplexed detection of gene fusions, but has not been validated in the clinical setting...
January 10, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28071682/ocular-dominance-plasticity-inhibitory-interactions-and-contrast-equivalence
#3
Daniel P Spiegel, Alex S Baldwin, Robert F Hess
Brief monocular occlusion results in a transient change in ocular dominance, such that the previously patched eye makes a stronger contribution to the binocular percept after occlusion. The previously unpatched eye therefore makes a correspondingly weaker contribution to the binocular sum. To shed light on the mechanism underlying this change we investigate how the relationship between the perception of fusion, suppression, and diplopia changes after short-term monocular deprivation. Results show that fusible stimuli seen by the unpatched eye are actively suppressed as a result of patching and that this can be reversed by an interocular contrast imbalance...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28065229/detection-of-echinoderm-microtubule-associated-protein-like-4-anaplastic-lymphoma-kinase-fusion-genes-in-non-small-cell-lung-cancer-clinical-samples-by-a-real-time-quantitative-reverse-transcription-polymerase-chain-reaction-method
#4
Jing Zhao, Jin-Yin Zhao, Zhi-Xia Chen, Wei Zhong, Long-Yun Li, Li-Cheng Liu, Xiao-Xu Hu, Wei-Jun Chen, Meng-Zhao Wang
Objective To establish a real-time quantitative reverse transcription polymerase chain reaction assay (qRT-PCR) for the rapid, sensitive, and specific detection of echinoderm microtubule associated protein like 4-anaplastic lymphoma kinase (EML4-ALK) fusion genes in non-small cell lung cancer. Methods The specific primers for the four variants of EML4-ALK fusion genes (V1, V2, V3a, and V3b) and Taqman fluorescence probes for the detection of the target sequences were carefully designed by the Primer Premier 5...
December 20, 2016: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/28064313/-biological-microchip-for-establishing-the-structure-of-fusion-transcripts-involving-mll-in-children-with-acute-leukemia
#5
T V Nasedkina, A Yu Ikonnikova, G A Tsaur, A V Karateeva, Yu I Ammour, M A Avdonina, A I Karachunskii, A S Zasedatelev
MLL is involved in fusion genes with more than 100 partner genes, approximately 80 of which have been characterized at the molecular level. MLL fusion genes are often found in infants (60-80% of acute lymphoblastic leukemia (ALL) cases and 40-50% of acute myeloblastic leukemia (AML) cases) and are appreciably rarer (8-10%) in children older than 1 year of age. MLL rearrangements are important markers in diagnosis and treatment choice. To identify the partner gene is of primary importance for prognosis and minimal residual disease monitoring...
November 2016: Molekuliarnaia Biologiia
https://www.readbyqxmd.com/read/28045556/generalized-hultman-numbers-and-cycle-structures-of-breakpoint-graphs
#6
Nikita Alexeev, Anna Pologova, Max A Alekseyev
Genome rearrangements can be modeled as k-breaks, which break a genome at k positions and glue the resulting fragments in a new order. In particular, reversals, translocations, fusions, and fissions are modeled as 2-breaks, and transpositions are modeled as 3-breaks. Although k-break rearrangements for [Formula: see text] have not been observed in evolution, they are used in cancer genomics to model chromothripsis, a catastrophic event of multiple breakages happening simultaneously in a genome. It is known that the k-break distance between two genomes (i...
January 3, 2017: Journal of Computational Biology: a Journal of Computational Molecular Cell Biology
https://www.readbyqxmd.com/read/28039177/differential-protein-stability-and-clinical-responses-of-eml4-alkfusion-variants-to-various-alk-inhibitors-in-advanced-alk-rearranged-non-small-cell-lung-cancer
#7
C G Woo, S Seo, S W Kim, S J Jang, K S Park, J Y Song, B Lee, M W Richards, R Bayliss, D H Lee, J Choi
BACKGROUND: Anaplastic lymphoma kinase (ALK) inhibition using crizotinib has become the standard of care in advanced ALK-rearranged non-small cell lung cancer (NSCLC), but the treatment outcomes and duration of response vary widely. Echinoderm microtubule-associated protein-like 4 (EML4)-ALK is the most common translocation, and the fusion variants show different sensitivity to crizotinib in vitro. However, there are only limited data on the specific EML4-ALK variants and clinical responses of patients to various ALK inhibitors...
December 29, 2016: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28038696/predictors-for-postoperative-shoulder-balance-in-lenke-1-adolescent-idiopathic-scoliosis-a-prospective-cohort-study
#8
Alberto O Gotfryd, Maria Fernanda Silber Caffaro, Robert Meves, Osmar Avanzi
STUDY DESIGN: Prospective cohort. OBJECTIVES: To determine the predictors of the shoulder balance after main thoracic (MT) fusion in patients with Lenke 1 adolescent idiopathic scoliosis (AIS). SUMMARY OF BACKGROUND DATA: Imbalanced shoulders are a major cause of dissatisfaction in AIS patients. In Lenke 1 curves, MT curve fusion is supposed to lead to spontaneous correction of the proximal thoracic (PT) curve and thereby promote shoulder balance...
January 2017: Spine Deformity
https://www.readbyqxmd.com/read/28035744/impact-of-fusion-gene-status-versus-histology-on-risk-stratification-for-rhabdomyosarcoma-retrospective-analyses-of-patients-on-uk-trials
#9
Joanna Selfe, David Olmos, Reem Al-Saadi, Khin Thway, Julia Chisholm, Anna Kelsey, Janet Shipley
BACKGROUND: Long-term toxicities from current treatments are a major issue in paediatric cancer. Previous studies, including our own, have shown prognostic value for the presence of PAX3/7-FOXO1 fusion genes in rhabdomyosarcoma (RMS). It is proposed to introduce PAX3/7-FOXO1 positivity as a component of risk stratification, rather than alveolar histology, in future clinical trials. PROCEDURE: To assess the potential impact of this reclassification, we have determined the changes to risk category assignment of 210 histologically reviewed patients treated in the UK from previous malignant mesenchymal tumour clinical trials for non-metastatic RMS based on identification of PAX3/7-FOXO1 by fluorescence in situ hybridisation and/or reverse transcription PCR...
December 30, 2016: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28027601/hysteresis-in-myo-inositol-utilization-by-salmonella-typhimurium
#10
Jessica Hellinckx, Thilo M Fuchs
Growth of Salmonella enterica serovar Typhimurium strain 14028 with myo-inositol (MI) as the sole carbon and energy source is characterized by a bistable phenotype that manifests in a growth phenotype with an extraordinarily long and length-variable lag phase. However, in the presence of hydrogen carbonate, in the absence of IolR that represses the MI degradation pathway, or if cells are already adapted to minimal medium (MM) with MI, the lag phase is drastically shortened, and the bistable phenotype is abolished...
December 27, 2016: MicrobiologyOpen
https://www.readbyqxmd.com/read/28024928/molecular-profiling-and-survival-of-completely-resected-primary-pulmonary-neuroendocrine-carcinoma
#11
Guangyuan Lou, Xinmin Yu, Zhengbo Song
BACKGROUND: Currently, molecular profiles and prognosis of primary pulmonary neuroendocrine carcinoma (PNC) are poorly elucidated. The present study was designed to evaluate genomic abnormalities and survival in patients with primary PNC. METHODS: Completely resected PNC samples were collected from Zhejiang Cancer Hospital during the period of 2008 to 2015. Nine driver genes, including 6 mutations (EGFR, KRAS, NRAS, PIK3CA, BRAF, and HER2) and 3 fusions (ALK, ROS1, and RET), were evaluated by reverse transcription-polymerase chain reaction (RT-PCR)...
December 2, 2016: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28012177/how-reversible-is-development-contrast-between-developmentally-plastic-gain-and-loss-of-segments-in-barnacle-feeding-legs
#12
Tomonari Kaji, A Richard Palmer
Segmented organisms and structures have fascinated biologists since William Bateson first described homeotic transformation and recognized the fundamental evolutionary significance of segmental organization. On evolutionary timescales, segments may be lost or gained during major morphological transitions. But how segment loss compares to gain on developmental timescales remains mysterious. Here we examine the ease of reverse development (opposite to normal growth) by comparing developmentally plastic leg-segment loss versus gain in individual barnacles transplanted between different water-flow conditions...
December 24, 2016: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/28009628/enhanced-delivery-of-il-1-receptor-antagonist-to-the-cns-as-a-novel-anti-tfr-il-1ra-fusion-reverses-neuropathic-mechanical-hypersensitivity
#13
Carl I Webster, Jon Hatcher, Matthew Burrell, George Thom, Peter Thornton, Ian Gurrell, Iain Chessell
Neuropathic pain is a major unmet medical need, with only 30-35 % of patients responding to the current standard of care. The discovery and development of novel therapeutics to address this unmet need have been hampered by poor target engagement, the selectivity of novel molecules, and limited access to the relevant compartments. Biologic therapeutics, either monoclonal antibodies (mAb) or peptides, offer a solution to the challenge of specificity as the intrinsic selectivity of these kinds of molecules is significantly higher than traditional medicinal chemistry-derived approaches...
December 20, 2016: Pain
https://www.readbyqxmd.com/read/28009602/ewsr1-fusions-with-creb-family-transcription-factors-define-a-novel-myxoid-mesenchymal-tumor-with-predilection-for-intracranial-location
#14
Yu-Chien Kao, Yun-Shao Sung, Lei Zhang, Chun-Liang Chen, Sumathi Vaiyapuri, Marc K Rosenblum, Cristina R Antonescu
Recurrent gene fusions involving EWSR1 with members of the cAMP response element binding protein (CREB) family (ATF1 and CREB1) have been reported in a diverse group of tumors including angiomatoid fibrous histiocytoma (AFH), soft tissue and gastrointestinal clear cell sarcoma, primary pulmonary myxoid sarcoma, and hyalinizing clear cell carcinoma of salivary gland. We have recently encountered a group of 5 myxoid mesenchymal tumors positive for EWSR1 fusions with one of the CREB family member (ATF1, CREB1, and CREM), with histologic features distinct from any of the previously described pathologic entities...
December 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28004528/minimal-residual-disease-monitoring-in-childhood-b-lymphoblastic-leukemia-with-t-12-21-p13-q22-etv6-runx1-concordant-results-using-quantitation-of-fusion-transcript-and-flow-cytometry
#15
S J Alm, C Engvall, J Asp, L Palmqvist, J Abrahamsson, L Fogelstrand
INTRODUCTION: The translocation t(12;21)(p13;q22) resulting in the fusion gene ETV6-RUNX1, is the most frequent gene fusion in childhood B lymphoblastic leukemia. In the Nordic Society of Paediatric Haematology and Oncology ALL-2008 treatment protocol, treatment stratification in B-lineage ALL is based on results of minimal residual disease (MRD) analysis with fluorescence-activated cell sorting (FACS). In this study, we determined whether RT-qPCR of the ETV6-RUNX1 fusion transcript can be a reliable alternative for MRD analysis...
December 22, 2016: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/28003487/mildly-acidic-ph-triggers-an-irreversible-conformational-change-in-the-fusion-domain-of-herpes-simplex-virus-1-glycoprotein-b-and-inactivation-of-viral-entry
#16
Darin J Weed, Suzanne M Pritchard, Floricel Gonzalez, Hector C Aguilar, Anthony V Nicola
: Herpes simplex virus (HSV) entry into a subset of cells requires endocytosis and endosomal low-pH. Pre-exposure of isolated virions to mildly acidic pH of 5 to 6 partially inactivates HSV infectivity in an irreversible manner. Acid inactivation is a hallmark of viruses that enter via low-pH pathways; this occurs by pre-triggering conformational changes essential for fusion. The target and mechanism(s) of low-pH inactivation of HSV are unclear. Here, low-pH treated HSV-1 was defective in fusion activity yet retained normal levels of attachment to cell surface heparan sulfate and binding to nectin-1 receptor...
December 21, 2016: Journal of Virology
https://www.readbyqxmd.com/read/28000675/suppressed-ion-scale-turbulence-in-a-hot-high-%C3%AE-plasma
#17
L Schmitz, D P Fulton, E Ruskov, C Lau, B H Deng, T Tajima, M W Binderbauer, I Holod, Z Lin, H Gota, M Tuszewski, S A Dettrick, L C Steinhauer
An economic magnetic fusion reactor favours a high ratio of plasma kinetic pressure to magnetic pressure in a well-confined, hot plasma with low thermal losses across the confining magnetic field. Field-reversed configuration (FRC) plasmas are potentially attractive as a reactor concept, achieving high plasma pressure in a simple axisymmetric geometry. Here, we show that FRC plasmas have unique, beneficial microstability properties that differ from typical regimes in toroidal confinement devices. Ion-scale fluctuations are found to be absent or strongly suppressed in the plasma core, mainly due to the large FRC ion orbits, resulting in near-classical thermal ion confinement...
December 21, 2016: Nature Communications
https://www.readbyqxmd.com/read/27997503/dose-dependent-nerve-inflammatory-response-to-rhbmp-2-in-a-rodent-spinal-nerve-model
#18
Z Q G Liau, R W Lam, T M Hu, H K Wong
STUDY DESIGN: We developed a spinal nerve root wrapping rodent model to evaluate the relationship between recombinant human bone morphogenetic protein 2 (rhBMP-2) dosage and the degree of inflammation. OBJECTIVE: To investigate the direct effects of recombinant human bone morphogenetic protein 2 (rhBMP-2) dosage and the degree of inflammation in rodent spinal nerve roots. SUMMARY OF BACKGROUND DATA: rhBMP-2 is commonly used in clinical practice to augment spinal fusion...
December 16, 2016: Spine
https://www.readbyqxmd.com/read/27982220/amblyopia-neural-basis-and-therapeutic-approaches
#19
Caio César Peixoto Bretas, Renato Nery Soriano
Abnormalities in visual processing caused by visual deprivation or abnormal binocular interaction may induce amblyopia, which is characterized by reduced visual acuity. Occlusion therapy, the conventional treatment, requires special attention as occlusion of the fellow normal eye may reduce its visual acuity and impair binocular vision. Besides recovering visual acuity, some researchers have recommended restoration of stereoacuity and motor fusion and reverse suppression in order to prevent diplopia. Recent studies have documented that the amblyopic visual cortex has a normal complement of cells but reduced spatial resolution and a disordered topographical map...
September 2016: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/27979961/rt-qpcr-and-rt-digital-pcr-a-comparison-of-different-platforms-for-the-evaluation-of-residual-disease-in-chronic-myeloid-leukemia
#20
Mary Alikian, Alexandra S Whale, Susanna Akiki, Kim Piechocki, Celia Torrado, Thet Myint, Simon Cowen, Michael Griffiths, Alistair G Reid, Jane Apperley, Helen White, Jim F Huggett, Letizia Foroni
BACKGROUND: Tyrosine kinase inhibitors (TKIs) are the cornerstone of successful clinical management of patients with chronic myeloid leukemia (CML). Quantitative monitoring of the percentage of the BCR, RhoGEF, and GTPase activating protein-ABL proto-oncogene 1, non-receptor tyrosine kinase fusion transcript BCR-ABL1(IS) (%BCR-ABL1(IS)) by reverse transcription-quantitative PCR (RT-qPCR) is the gold standard strategy for evaluating patient response to TKIs and classification into prognostic subgroups...
December 15, 2016: Clinical Chemistry
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