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https://www.readbyqxmd.com/read/29228521/intercalated-treatment-following-rebiopsy-is-associated-with-a-shorter-progression-free-survival-of-osimertinib-treatment
#1
Jeng-Sen Tseng, Tsung-Ying Yang, Kun-Chieh Chen, Kuo-Hsuan Hsu, Yen-Hsiang Huang, Kang-Yi Su, Sung-Liang Yu, Gee-Chen Chang
Purpose: Epidermal growth factor receptor (EGFR) T790M mutation serves as an important predictor of osimertinib efficacy. However, little is known about how it works among patients with various timings of T790M emergence and treatment. Materials and Methods: Advanced EGFR-mutant lung adenocarcinoma patients with positive T790M mutation in tumor were retrospectively enrolled and observed to determine the outcomes of osimertinib treatment. We evaluated the association between patients' characteristics and the efficacy of osimertinib treatment, particularly with respect to the timing of T790M emergence and osimertinib prescription...
December 11, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/29228467/neoadjuvant-systemic-therapy-for-regionally-advanced-melanoma
#2
James W Jakub, Jennifer M Racz, Tina J Hieken, Alexandra B Gonzalez, Lisa A Kottschade, Svetomir N Markovic, Yiyi Yan, Mathew S Block
BACKGROUND: Patients with regionally advanced melanoma are at high risk of distant failure and unlikely to be cured by surgery alone. Neoadjuvant therapy may provide benefit in these patients. OBJECTIVES: To evaluate our experience with neoadjuvant systemic therapy in high-risk stage III patients. METHODS: Retrospective review of patients with advanced stage III disease who received neoadjuvant therapy between August 2009 and August 2016 at Mayo Clinic Rochester...
December 11, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29228466/concomitant-organ-resection-does-not-improve-outcomes-in-primary-retroperitoneal-well-differentiated-liposarcoma-a-retrospective-cohort-study-at-a-major-sarcoma-center
#3
Naruhiko Ikoma, Christina L Roland, Keila E Torres, Yi-Ju Chiang, Wei-Lien Wang, Neeta Somaiah, Gary N Mann, Kelly K Hunt, Janice N Cormier, Barry W Feig
BACKGROUND: We investigated whether concomitant organ removal as part of the primary resection of RP WDLPS confers an outcome advantage in patients treated at a major sarcoma center. METHODS: The departmental sarcoma database was reviewed to identify patients with RP WDLPS who underwent initial surgical resection for primary disease at MD Anderson Cancer Center during the study period 1995-2011. We retrospectively reviewed medical records and examined associations between clinicopathologic variables and overall survival (OS) as well as disease-free survival (DFS)...
December 11, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29228462/clinical-features-and-survival-of-gastric-cancer-patients-with-dna-mismatch-repair-deficiency
#4
Naruhiko Ikoma, Jordan Cloyd, Brian D Badgwell, Annamaria Agnes, Miguel Rodriguez-Bigas, Jaffer A Ajani, Y Nancy You
Patients with germline DNA mismatch repair deficiency (dMMR) have an increased risk of gastric cancer. From our institutional database, we identified 12 patients with germline dMMR gastric cancer. Ten patients (83%) underwent surgical resection, with a 5-year overall survival rate of 88%. None of the three patients who received preoperative therapy and five patients with recurrent or metastatic disease experienced a significant response to 5-fluorouracil-based chemotherapy.
December 11, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29228455/prognostic-significance-of-neoadjuvant-rectal-score-in-locally-advanced-rectal-cancer-after-neoadjuvant-chemoradiotherapy-and-construction-of-a-prediction-model
#5
Yanwu Sun, Yiyi Zhang, Xuejing Wu, Huiming Lin, Xingrong Lu, Ying Huang, Zongbin Xu, Shenghui Huang, Xiaojie Wang, Pan Chi
AIM: To evaluate the prognostic significance of neoadjuvant rectal (NAR) score after neoadjuvant chemoradiotherapy (nCRT) for locally advanced rectal cancer (LARC), and to develop a nomogram predicting disease-free survival (DFS). METHOD: A total of 522 LARC patients undergoing nCRT and surgery were included. NAR scores were calculated using the equation [5pN-3(cT-pT) + 12]^2/9.61, and classified as low (<8), intermediate (8-16), and high (>16). Clinicopathological and survival outcomes were compared...
December 11, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29228424/circulating-ship2-mrna-as-a-novel-biomarker-in-the-diagnosis-and-prognosis-of-gastric-cancer
#6
J-F Xie, N-S Xie, J-H Tang, Q-P Gu, Q-T Luo
OBJECTIVE: Previous studies showed the aberrant expression of Src homology 2-containing inositol 5-phosphatase 2 (SHIP2) in GC tissue. However, the exact role of circulating SHIP2 in GC remains unclear. The aim of this manuscript was to analyze potential diagnostic and prognostic value of circulating SHIP2 levels in GC. PATIENTS AND METHODS: Circulating SHIP2 expression was detected in the plasma of 156 GC patients and 60 healthy controls by qRT-PCR. The receiver operating characteristic (ROC) curves were plotted to explore the reliability of circulating SHIP2 in detecting GC...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29228423/cd44v6-regulates-gastric-carcinoma-occurrence-and-development-through-up-regulating-vegf-expression
#7
S Liang, H-L Li, G-Y Han, J-H Cui
OBJECTIVE: Gastric carcinoma (GC) is one of the most common malignant tumors around the world. It is featured as high morbidity, poor prognosis, and short survival, thus seriously threats to the quality of life. The mechanism of GC is still unclear, leading to a difficulty in the treatment. CD44V6 plays an important role in tumorigenesis and progression, while its role in GC still needs further elucidation. PATIENTS AND METHODS: GC tissue and para-carcinoma tissue were collected from patients in different tumor-mode-metastasis (TNM) stages...
November 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29228380/elderly-versus-nonelderly-patients-with-invasive-aspergillosis-in-the-icu-a-comparison-and-risk-factor-analysis-for-mortality-from-the-aspicu-cohort
#8
D K Matthaiou, G Dimopoulos, F S Taccone, P Bulpa, A M Van den Abeele, B Misset, W Meersseman, H Spapen, T Cardoso, P E Charles, D Vogelaers, S Blot
Data regarding the epidemiology and diagnosis of invasive aspergillosis in the critically ill population are limited, with data regarding elderly patients (≥75 years old) even scarcer. We aimed to further compare the epidemiology, characteristics and outcome of elderly versus nonelderly critically ill patients with invasive aspergillosis (IA) Prospective, international, multicenter observational study (AspICU) including adult intensive care unit (ICU) patients, with a culture and/or direct examination and/or histopathological sample positive for Aspergillus spp...
December 8, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29228370/a-nf-%C3%AE%C2%BAb-signature-predicts-low-grade-glioma-prognosis-a-precision-medicine-approach-based-on-patient-derived-stem-cells
#9
Tamara Ius, Yari Ciani, Maria Elisabetta Ruaro, Miriam Isola, Marisa Sorrentino, Michela Bulfoni, Veronica Candotti, Cecilia Correcig, Evgenia Bourkoula, Ivana Manini, Enrico Pegolo, Damiano Mangoni, Stefania Marzinotto, Slobodanka Radovic, Barbara Toffoletto, Federica Caponnetto, Andrea Zanello, Laura Mariuzzi, Carla Di Loreto, Antonio Paolo Beltrami, Silvano Piazza, Miran Skrap, Daniela Cesselli
Background: While recent genome wide association studies have suggested novel low-grade glioma (LGG) stratification models based on a molecular classification, we explored the potential clinical utility of patient-derived cells. Specifically, we assayed glioma-associated stem cells (GASC) that are patient-derived stem cells representative of the glioma microenvironment. Methods: By next generation sequencing, we analyzed the transcriptional profile of GASC derived from patients that underwent anaplastic transformation either within 48 months (GASC-BAD) or ≥7 years (GASC-GOOD) after surgery...
December 7, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/29228342/a-highly-asynchronous-developmental-program-triggered-during-germination-of-dormant-akinetes-of-the-filamentous-diazotrophic-cyanobacteria
#10
Rebeca Perez, Lars Wörmer, Peter Sass, Iris Maldener
Germination of akinetes of filamentous heterocyst-forming cyanobacteria of the order Nostocales is an essential process that ensures survival and recolonization after long periods of unfavorable conditions, as desiccation, cold and low light. We studied the morphological, physiological, and metabolic changes that occur during germination of akinetes in two model species of cell differentiation, Anabaena variabilis ATCC 29413 and Nostoc punctiforme ATCC 29133, which live in different habitats. We characterized the akinete envelopes and showed their similarity to envelopes of N2-fixing heterocysts...
December 6, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/29228329/reliance-on-deep-soil-water-in-the-tree-species-argania-spinosa
#11
M Zunzunegui, S Boutaleb, M C Díaz Barradas, M P Esquivias, J Valera, J Jáuregui, T Tagma, F Ain-Lhout
In South-western Morocco, water scarcity and high temperature are the main factors determining species survival. Argania spinosa (L.) Skeels is a tree species, endemic to Morocco, which is suffering from ongoing habitat shrinkage. Argan trees play essential local ecological and economic roles: protecting soils from erosion, shading different types of crops, helping maintain soil fertility and, even more importantly, its seeds are used by the local population for oil production, with valuable nutritional, medicinal and cosmetic purposes...
December 7, 2017: Tree Physiology
https://www.readbyqxmd.com/read/29228328/hypervascular-vestibular-schwannomas-clinical-characteristics-angiographical-classification-and-surgical-considerations
#12
Yu Teranishi, Michihiro Kohno, Shigeo Sora, Hiroaki Sato, Osamu Nagata
BACKGROUND: There is a rare type of vestibular schwannoma, scarcely discussed in the literature, known as a hypervascular vestibular schwannoma (HVS). OBJECTIVE: To evaluate its biological characteristics, angiographical classification, surgical outcomes, and the significance for surgical consideration, using a large series of this clinical entity. METHODS: The definition for HVS in this study was the tumor stain from the vertebrobasilar system (VBS) in angiography...
December 7, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29228320/overexpression-of-zrf1-is-related-to-tumor-malignant-potential-and-a-poor-outcome-of-gastric-carcinoma
#13
Taisuke Imamura, Shuhei Komatsu, Daisuke Ichikawa, Mahito Miyamae, Wataru Okajima, Takuma Ohashi, Jun Kiuchi, Keiji Nishibeppu, Toshiyuki Kosuga, Hirotaka Konishi, Atsushi Shiozaki, Hitoshi Fujiwara, Kazuma Okamoto, Hitoshi Tsuda, Eigo Otsuji
Zuotin-related factor 1 (ZRF1) is a recently characterized epigenetic factor involved in transcriptional regulation and is highly overexpressed in several malignancies, but it is not known whether it plays a role in gastric cancer (GC). In this study, we investigated whether ZRF1 acts as a cancer-promoting gene through its activation/overexpression in GC. We analyzed five GC cell lines and 133 primary tumors, which had been curatively resected in our hospital between 2001 and 2003. Overexpression of ZRF1 was detected in GC cell lines (four out of five lines, 80...
December 6, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29228315/comparison-of-neoadjuvant-nab-paclitaxel-carboplatin-vs-nab-paclitaxel-gemcitabine-in-triple-negative-breast-cancer-randomized-wsg-adapt-tn-trial-results
#14
Oleg Gluz, Ulrike Nitz, Cornelia Liedtke, Matthias Christgen, Eva-Maria Grischke, Helmut Forstbauer, Michael Braun, Mathias Warm, John Hackmann, Christoph Uleer, Bahriye Aktas, Claudia Schumacher, Nikola Bangemann, Christoph Lindner, Sherko Kuemmel, Michael Clemens, Jochem Potenberg, Peter Staib, Andreas Kohls, Raquel von Schumann, Ronald Kates, Ronald Kates, Johannes Schumacher, Rachel Wuerstlein, Hans Heinrich Kreipe, Nadia Harbeck
Background: Pathological complete response (pCR) is associated with improved prognosis in triple-negative breast cancer (TNBC). The optimal chemotherapy regimen is unclear. Weekly nab-paclitaxel vs conventional paclitaxel or addition of carboplatin to anthracycline-taxane results in higher pCR rates with uncertain survival impact. We evaluated carboplatin vs gemcitabine with a nab-paclitaxel backbone as a short 12-week A-free regimen with a focus on early response. Methods: Patients with TNBC (estrogen receptor/progesterone receptor < 1%, human epidermal growth factor receptor 2-negative, cT1c-cT4c, cN0/+) were randomly assigned to A: nab-paclitaxel 125 mg/m2/gemcitabine 1000 mg/m2 d1,8 three times weekly (q3w); vs B: nab-paclitaxel 125 mg/m2/carboplatin AUC2 day 1,8 q3w...
December 8, 2017: Journal of the National Cancer Institute
https://www.readbyqxmd.com/read/29228296/paqr4-has-a-tumorigenic-effect-in-human-breast-cancers-in-association-with-reduced-cdk4-degradation
#15
Huanhuan Zhang, Ruomei Han, Zhi-Qiang Ling, Fuyuan Zhang, Yongfan Hou, Xue You, Meiqin Huang, Zilong Zhao, Zhenzhen Wang, Yan Chen
Progestin and AdipoQ Receptor 4 (PAQR4) is a member of the PAQR family and the members within this family are involved in the regulation of a number of biological processes including metabolism and cancer development. The potential function of PAQR4 in human cancers is unknown. Analysis of ONCOMINE database reveals that PAQR4 is highly expressed in human breast cancers. We confirmed this finding by analyzing 82 human breast cancers samples. PAQR4 mRNA level was robustly upregulated in human breast cancer samples compared with their corresponding para-cancerous histological normal tissues (P < 0...
December 8, 2017: Carcinogenesis
https://www.readbyqxmd.com/read/29228268/low-and-constant-micafungin-concentrations-may-be-sufficient-to-lead-to-resistance-mutations-in-fks2-gene-of-candida-glabrata
#16
María Ángeles Bordallo-Cardona, Pilar Escribano, Laura Judith Marcos-Zambrano, Judith Díaz-García, Elia Gómez de la Pedrosa, Rafael Cantón, Emilio Bouza, Jesús Guinea
We studied the ability of five echinocandin-susceptible C. glabrata isolates to acquire in vitro resistance to anidulafungin and micafungin. All isolates became phenotypically resistant after 2-4 days of exposure to low and constant micafungin concentrations (P < .05). Mutations in the HS1 region of the FKS2 gene were found in all isolates. The acquisition of resistance was not related to the previous use of antifungal treatment in the patients or the presence of mutations at MSH2 gene. We found differences (P < ...
December 8, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/29228234/tgfbr2-inactivation-facilitates-cellular-plasticity-and-development-of-pten-null-prostate-cancer
#17
Wei Zhao, Peng Tan, Qingyuan Zhu, Adebusola Ajibade, Teng Long, Wenyong Long, Qingtian Li, Pinghua Liu, Bo Ning, Helen Y Wang, Rong-Fu Wang
Mutations in tumors can create a state of increased cellular plasticity that promotes resistance to treatment. Thus, there is an urgent need to develop novel strategies for identifying key factors that regulate cellular plasticity in order to combat resistance to chemotherapy and radiation treatment. Here we report that prostate epithelial cell reprogramming could be exploited to identify key factors required for promoting prostate cancer tumorigenesis and cellular plasticity. Deletion of phosphatase and tensin homolog (Pten) and transforming growth factor-beta receptor type 2 (Tgfbr2) may increase prostate epithelial cell reprogramming efficiency in vitro and cause rapid tumor development and early mortality in vivo...
December 8, 2017: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/29228227/cold-tolerance-and-supercooling-capacity-of-the-redbanded-stink-bug-hemiptera-pentatomidae
#18
Anup Bastola, Jeffrey A Davis
The redbanded stink bug Piezodorus guildinii (Westwood) (Hemiptera: Pentatomidae) is an invasive stink bug species in the United States. First documented as a soybean pest in Louisiana in the year 2000, this species continues to spread in the Mid-South region of the United States. We designed laboratory and field studies to investigate supercooling points, lethal exposure time (LT), critical thermal minimum (CTmin), and winter mortality of this species. The mean supercooling points (SCP) ± SE of adult field collected P...
December 8, 2017: Environmental Entomology
https://www.readbyqxmd.com/read/29228224/relationship-between-escherichia-coli-growth-rate-and-bacterial-susceptibility-to-ciprofloxacin
#19
Galina V Smirnova, Oleg N Oktyabrsky
The effect of Escherichia coli growth rate on its susceptibility to ciprofloxacin was investigated using bacteria grown on different carbon sources and harboring mutations in genes encoding tricarboxylic acid cycle enzymes. A 1-h treatment of the wild type (wt) grown on glucose, succinate, malate, α-ketoglutarate or acetate with 0.3 μg ml-1 ciprofloxacin decreased the number of surviving cells (CFU ml-1), 560, 110, 74, 62 and 5 times, respectively. Among the mutants tested, sucB strain, which grew 1.75 times slower than wt, was 7...
December 6, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29228216/recurrence-following-curative-intended-surgery-for-an-adenocarcinoma-in-the-gastroesophageal-junction-a-retrospective-study
#20
M Belmouhand, L B Svendsen, S C Kofoed, G Normann, L Baeksgaard, M P Achiam
Recurrence following a resection for an adenocarcinoma of the gastroesophageal junction leads to reduced long-term survival. This study aims to identify risk factors associated with recurrence, recurrence localization, time to recurrence, and long-term survival. All patients undergoing curative intended resection for an adenocarcinoma of the gastroesophageal junction at Rigshospitalet between June 2003 and December 2011 were identified through a prospectively maintained nationwide database and enrolled in this study...
December 8, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
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