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https://www.readbyqxmd.com/read/27919616/supermicrosurgery-assisted-venous-supercharging-of-a-reverse-flow-angular-artery-perforator-flap-for-nasal-reconstruction
#1
R Vijayan, F Al-Aswad, R Y Kannan
The centre ground in the world of flaps have over time, gradually shifted from tubed pedicled, random-pattern, axial-pattern, pedicled, free and currently, to free-styled flaps. These concepts are broadly based on the angiosome-perforasome concept. In this case report, we illustrate how the concept of venosome capture can be transposed onto reverse-flow flaps with the aid of venous supercharging. Moreover, if this is seen from the free-styled flap perspective, it requires supermicrosurgical expertise. This case report hence, serves as a fusion of all the above concepts...
November 24, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27918348/ewing-sarcoma-of-the-bone-with-ews-fli1-translocation-after-successful-treatment-of-primary-osteosarcoma
#2
Noriko Yodoya, Shotaro Iwamoto, Akihiko Matsumine, Eiichi Azuma, Hidemi Toyoda, Yoshihiro Miura, Kaname Nakatani, Hiroshi Imai, Masahiro Hirayama, Yoshihiro Komada
Although prognosis in patients with localized osteosarcoma has been dramatically improved by the introduction of multiple chemotherapy agents known as combination chemotherapy, there is growing concern about the development of secondary malignant neoplasms. We report the case of a 13-year-old girl in whom the diagnosis of Ewing sarcoma of bone localized on the shaft of left femur was made 2 years after successful treatment without radiotherapy for osteosarcoma of right proximal femur. EWS-FLI1 fusion gene was detected by reverse transcriptase-polymerase chain reaction...
December 1, 2016: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/27917700/posterior-reversible-encephalopathy-syndrome-following-elevated-mean-arterial-pressures-for-cervical-spinal-cord-injury
#3
Jeffrey H Zimering, Addisu Mesfin
BACKGROUND: Increasing the mean arterial pressure (MAP) is an accepted treatment modality to minimize the risk for irreversible neurologic damage secondary to spinal cord ischemia. Posterior reversible encephalopathy syndrome (PRES) is a rare complication occurring after transplantation surgery, in persons having an autoimmune disorder or after abrupt increases in blood pressure of various etiologies. STUDY DESIGN: Case report. METHODS: Retrospective evaluation of medical records...
December 5, 2016: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/27916624/primary-paranasal-sinus-clear-cell-carcinoma-with-ewsr1-atf1-fusion-report-of-two-molecularly-confirmed-cases-exhibiting-unique-histopathology
#4
Jui Lan, Shun-Chen Huang, Yi-Hsien Chen, Wei-Chih Chen, Ying-Tai Jin, Ying-Chou Lu, Chih-Yen Chien, Hsuan-Ying Huang
Hyalinizing clear cell carcinoma (HCCC) is a rare low-grade tumor of the salivary glands made up of clear cells that form cords and nests in hyalinized stroma. To date, primary HCCCs of the paranasal sinus have not been described. This article presents two cases of HCCC of the maxillary sinus with unusual glandular formation and lymphoplasmacytic stroma in Case 1 and a characteristic solid nest pattern and fibrocellular and hyalinized stroma in Case 2. Immunohistochemical studies excluded myoepithelial origin and sinonasal renal cell-like adenocarcinomas...
December 1, 2016: Human Pathology
https://www.readbyqxmd.com/read/27914059/evolution-inspired-computational-design-of-symmetric-proteins
#5
Arnout R D Voet, David Simoncini, Jeremy R H Tame, Kam Y J Zhang
Monomeric proteins with a number of identical repeats creating symmetrical structures are potentially very valuable building blocks with a variety of bionanotechnological applications. As such proteins do not occur naturally, the emerging field of computational protein design serves as an excellent tool to create them from nonsymmetrical templates. Existing pseudo-symmetrical proteins are believed to have evolved from oligomeric precursors by duplication and fusion of identical repeats. Here we describe a computational workflow to reverse-engineer this evolutionary process in order to create stable proteins consisting of identical sequence repeats...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27910544/absolute-calibration-of-neutron-detectors-on-the-c-2u-advanced-beam-driven-frc
#6
R M Magee, R Clary, S Korepanov, F Jauregui, I Allfrey, E Garate, T Valentine, A Smirnov
In the C-2U fusion energy experiment, high power neutral beam injection creates a large fast ion population that sustains a field-reversed configuration (FRC) plasma. The diagnosis of the fast ion pressure in these high-performance plasmas is therefore critical, and the measurement of the flux of neutrons from the deuterium-deuterium (D-D) fusion reaction is well suited to the task. Here we describe the absolute, in situ calibration of scintillation neutron detectors via two independent methods: firing deuterium beams into a high density gas target and calibration with a 2 × 10(7) n/s AmBe source...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910371/diagnostic-suite-of-the-c-2u-advanced-beam-driven-field-reversed-configuration-plasma-experiment
#7
M C Thompson, H Gota, S Putvinski, M Tuszewski, M Binderbauer
The C-2U experiment at Tri Alpha Energy studies the evolution of field-reversed configuration (FRC) plasmas sustained by neutral beam injection. Data on the FRC plasma performance are provided by a comprehensive suite of diagnostics that includes magnetic sensors, interferometry, Thomson scattering, spectroscopy, bolometry, reflectometry, neutral particle analyzers, and fusion product detectors. While many of these diagnostic systems were inherited from the preceding experiment C-2, C-2U has a variety of new and upgraded diagnostic systems: multi-chord far-infrared polarimetry, multiple fast imaging cameras with selectable atomic line filters, proton detector arrays, and 100 channel bolometer units capable of observing multiple regions of the spectrum simultaneously...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910166/anchored-multiplex-pcr-for-targeted-next-generation-sequencing-reveals-recurrent-and-novel-usp6-fusions-and-upregulation-of-usp6-expression-in-aneurysmal-bone-cyst
#8
Natalya V Guseva, Omar Jaber, Munir R Tanas, Aaron A Stence, Ramakrishna Sompallae, Jenna Schade, Allison N Fillman, Benjamin J Miller, Aaron D Bossler, Deqin Ma
Primary aneurysmal bone cyst (ABC) is a neoplastic process due to recurrent translocations involving the USP6 gene. By fluorescence in situ hybridization, up to 69% of primary ABCs harbored USP6 translocations; no USP6 translocation was found in secondary ABC or giant cell tumor of bone (GCT). GCT can recur locally, metastasize to the lungs in some cases, and rarely undergo malignant transformation. Differentiating primary ABC from its mimics is important for treatment and prognosis. We evaluated USP6 fusion and expression in 13 cases of primary and 1 case of secondary ABC, and 9 cases of GCT using nucleic acid extracted from formalin-fixed, paraffin-embedded tissue and a next generation sequencing (NGS)-based assay...
November 7, 2016: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/27909242/beneficial-effects-of-rapamycin-in-a-drosophila-model-for-hereditary-spastic-paraplegia
#9
Shiyu Xu, Michael Stern, James A McNew
The locomotor deficits in the hereditary spastic paraplegias (HSPs) reflect degeneration of upper motor neurons, but the mechanisms underlying this neurodegeneration are unknown. We established a Drosophila model for the HSP atlastin (atl), which encodes an ER fusion protein. Here we show that neuronal atl loss causes degeneration of specific thoracic muscles that is preceded by other pathologies including accumulation of aggregates containing poly-ubiquitin (poly-UB), increased generation of reactive oxygen species, and activation of the JNK/Foxo stress response pathway...
December 1, 2016: Journal of Cell Science
https://www.readbyqxmd.com/read/27905987/factors-associated-with-the-first-antiretroviral-therapy-modification-in-older-hiv-1-positive-patients
#10
Justyna D Kowalska, Joanna Kubicka, Ewa Siwak, Piotr Pulik, Ewa Firląg-Burkacka, Andrzej Horban
BACKGROUND: Rates of first antiretroviral therapy (cART) modifications are high in most observational studies. The age-related differences in treatment duration and characteristics of first cART modifications remain underinvestigated. With increasing proportion of older patients in HIV population it is important to better understand age-related treatment effects. METHODS: Patients were included into this analysis, if being cART naïve at the first visit at the clinic...
January 7, 2016: AIDS Research and Therapy
https://www.readbyqxmd.com/read/27899972/efficacy-and-safety-of-aflibercept-in-metastatic-colorectal-cancer-pretreated-with-bevacizumab-a-report-of-five-cases
#11
Julia Alcaide, Mayte Delgado, Marta Legerén, José Miguel Jurado, Isabel Blancas, Teresa Pereda, Jorge López, Margarita Garrido, María J Sánchez, José L García, Antonio Rueda
Aflibercept is a recombinant fusion protein that acts by inhibiting tumoural angiogenesis. Efficacy data obtained in the VELOUR randomised study has contributed to the approval of aflibercept as a second-line metastatic colorectal cancer (mCRC) treatment following an oxaliplatin-based regimen. The present study reports a case series of five patients with mCRC, who were treated in two centres since 2011 in the Compassionate Use Program for aflibercept. All patients had a KRAS mutation and previously received palliative fluoropyrimidine-oxaliplatin-based chemotherapy with bevacizumab...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27889185/nup98-fusion-proteins-interact-with-the-nsl-and-mll1-complexes-to-drive-leukemogenesis
#12
Haiming Xu, Daria G Valerio, Meghan E Eisold, Amit Sinha, Richard P Koche, Wenhuo Hu, Chun-Wei Chen, S Haihua Chu, Gerard L Brien, Christopher Y Park, James J Hsieh, Patricia Ernst, Scott A Armstrong
The nucleoporin 98 gene (NUP98) is fused to a variety of partner genes in multiple hematopoietic malignancies. Here, we demonstrate that NUP98 fusion proteins, including NUP98-HOXA9 (NHA9), NUP98-HOXD13 (NHD13), NUP98-NSD1, NUP98-PHF23, and NUP98-TOP1 physically interact with mixed lineage leukemia 1 (MLL1) and the non-specific lethal (NSL) histone-modifying complexes. Chromatin immunoprecipitation sequencing illustrates that NHA9 and MLL1 co-localize on chromatin and are found associated with Hox gene promoter regions...
November 15, 2016: Cancer Cell
https://www.readbyqxmd.com/read/27888081/bow-hunter-s-syndrome-from-a-tortuous-v1-segment-vertebral-artery-treated-with-stent-placement
#13
Rouzbeh Motiei-Langroudi, Christoph J Griessenauer, Abdulrahman Alturki, Nimer Adeeb, Ajith J Thomas, Christopher S Ogilvy
Bow Hunter's syndrome is a dynamic and reversible occlusion of the vertebral artery occurring after rotation or extension of the neck. The V3 segment is the most common site of compression, especially at the atlanto-axial joint. Surgical decompression with or without cervical fusion has been the mainstay of therapy and endovascular intervention such as placement of stents is rarely performed. We report a patient with Bow Hunter's Syndrome from tortuosity of the V1 segment of the VA treated with a self-expanding biliary stent placement...
November 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27884323/the-toll-like-receptor-4-antagonist-transforming-growth-factor-%C3%AE-activated-kinase-tak-242-attenuates-taurocholate-induced-oxidative-stress-through-regulating-mitochondrial-function-in-mice-pancreatic-acinar-cells
#14
Long-Fei Pan, Lei Yu, Li-Ming Wang, Jun-Tao He, Jiang-Li Sun, Xiao-Bo Wang, Zheng-Hai Bai, Li-Juan Su, Hong-Hong Pei
BACKGROUND: Acute pancreatitis (AP) is a commonly occurring and potentially life-threatening disease. Recently, toll-like receptor 4 (TLR4) has been considered as a new clue for studying the pathogenesis of AP due to its important role in inflammatory response cascade. MATERIALS AND METHODS: The aim of this study was to investigate the potential protective effect of transforming growth factor-β-activated kinase (TAK)-242, a novel TLR4 antagonist, in taurocholate-treated mice pancreatic acinar cells...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27873490/egf-induced-ret-inhibitor-resistance-in-ccdc6-ret-lung-cancer-cells
#15
Hyun Chang, Ji Hea Sung, Sung Ung Moon, Han Soo Kim, Jin Won Kim, Jong Seok Lee
PURPOSE: Rearrangement of the proto-oncogene rearranged during transfection (RET) has been newly identified potential driver mutation in lung adenocarcinoma. Clinically available tyrosine kinase inhibitors (TKIs) target RET kinase activity, which suggests that patients with RET fusion genes may be treatable with a kinase inhibitor. Nevertheless, the mechanisms of resistance to these agents remain largely unknown. Thus, the present study aimed to determine whether epidermal growth factor (EGF) and hepatocyte growth factor (HGF) trigger RET inhibitor resistance in LC-2/ad cells with CCDC6-RET fusion genes...
January 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27872149/endogenous-tert-n-terminal-tagging-affects-human-telomerase-function-at-telomeres-in-vivo
#16
Kunitoshi Chiba, Jacob M Vogan, Robert A Wu, Manraj S Gill, Xiaozhu Zhang, Kathleen Collins, Dirk Hockemeyer
Telomerase action at telomeres is essential for the immortal phenotype of stem cells and the aberrant proliferative potential of cancer cells. Insufficient telomere maintenance can cause stem cell and tissue failure syndromes, while increased telomerase levels are associated with tumorigenesis. Both pathologies can arise from only small perturbation of telomerase function. To analyze telomerase at its low endogenous expression level, we genetically engineered human pluripotent stem cells (hPSCs) to express various N-terminal fusion proteins of the telomerase reverse transcriptase from its endogenous locus...
November 21, 2016: Molecular and Cellular Biology
https://www.readbyqxmd.com/read/27868412/-aberrant-dna-methylation-and-its-targeted-therapy-in-acute-myeloid-leukemia
#17
Xueying Li, Lixia Zhu, Xiujin Ye
The occurrence and development of acute myeloid leukemia (AML) is not only related to gene mutations, but also influenced by abnormal epigenetic regulation, in which DNA methylation is one of the most important mechanisms. Abnormal DNA methylation may lead to the activation of oncogene and the inactivation of tumor suppressor gene, resulting in the occurrence of leukemia. The mutations of DNA methylation enzymes associated with AML may have certain characteristics. The AML with recurrent cytogenetic abnormalities is also related to abnormal methylation...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/27866824/detection-of-her2-overexpressing-cancer-cells-using-keyhole-shaped-chamber-array-employing-a-magnetic-droplet-handling-system
#18
Mina Okochi, Shinji Koike, Masayoshi Tanaka, Hiroyuki Honda
An on-chip gene expression analysis compartmentalized in droplets was developed for detection of cancer cells at a single-cell level. The chip consists of a keyhole-shaped reaction chamber with hydrophobic modification employing a magnetic bead-droplet-handling system with a gate for bead separation. Using three kinds of water-based droplets in oil, a droplet with sample cells, a lysis buffer with magnetic beads, and RT-PCR buffer, parallel magnetic manipulation and fusion of droplets were performed using a magnet-handling device containing small external magnet patterns in an array...
November 11, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27863755/identification-of-the-myst3-crebbp-fusion-gene-in-infants-with-acute-myeloid-leukemia-and-hemophagocytosis
#19
Francianne Gomes Andrade, Elda Pereira Noronha, Rosania Maria Baseggio, Teresa Cristina Cardoso Fonseca, Bruno Marcelo Rocha Freire, Isis M Quezado Magalhaes, Ilana R Zalcberg, Maria S Pombo-de-Oliveira
BACKGROUND: Acute myeloid leukemia presenting the MYST3-CREBBP fusion gene is a rare subgroup associated with hemophagocytosis in early infancy and monocytic differentiation. The aim of this study was to define the relevant molecular cytogenetic characteristics of a unique series of early infancy acute myeloid leukemia cases (≤24months old), based on the presence of hemophagocytosis by blast cells at diagnosis. METHODS: A series of 266 infant cases of acute myeloid leukemia was the reference cohort for the present analysis...
October 2016: Revista Brasileira de Hematologia e Hemoterapia
https://www.readbyqxmd.com/read/27857896/prevalence-of-abelson-murine-leukemia-viral-oncogene-homolog-breakpoint-cluster-region-fusions-and-correlation-with-peripheral-blood-parameters-in-chronic-myelogenous-leukemia-patients-in-lorestan-province-iran
#20
Ali Asghar Kiani, Farhad Shahsavar, Mojtaba Gorji, Kolsoum Ahmadi, Vahideh Heydari Nazarabad, Banafsheh Bahmani
CONTEXT: Chronic myelogenous leukemia (CML) is a chronic malignancy of myeloid linage associated with a significant increase in granulocytes in bone marrow and peripheral blood. CML diagnosis is based on detection of Philadelphia chromosome and "Abelson murine leukemia viral oncogene homolog" (ABL)-"breakpoint cluster region protein" fusions (ABL-BCR fusions). AIMS: In this study, patients with CML morphology were studied according to ABL-BCR fusions and the relationship between the fusions and peripheral blood cell changes was examined...
October 2016: International Journal of Applied and Basic Medical Research
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