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https://www.readbyqxmd.com/read/28641309/sequential-versus-concurrent-chemotherapy-for-adjuvant-breast-cancer-does-dose-intensity-matter
#1
EDITORIAL
N LeVasseur, S K Chia
No abstract text is available yet for this article.
June 22, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28640873/healthy-aging-of-the-left-ventricle-in-relationship-to-cardiovascular-risk-factors-the-multi-ethnic-study-of-atherosclerosis-mesa
#2
Chia-Ying Liu, Shenghan Lai, Nadine Kawel-Boehm, Harjit Chahal, Bharath Ambale-Venkatesh, Joao A C Lima, David A Bluemke
BACKGROUND: Understanding the relationship of cardiovascular structure and function to age is confounded by the high prevalence of traditional risk factors in the United States. The purpose of the study is to compare left ventricular (LV) and aortic structural, and functional parameters in individuals with and without traditional risk factors in a population-based cohort. METHODS AND RESULTS: 3015 study participants (48% men, age 55-94, mean 69.01±9.17 years) in the Multi-Ethnic Study of Atherosclerosis (MESA) underwent cardiovascular magnetic resonance (CMR) imaging from 2010-2012...
2017: PloS One
https://www.readbyqxmd.com/read/28640846/endothelial-angiogenesis-is-directed-by-runx1t1-regulated-vegfa-bmp4-and-tgf-%C3%AE-2-expression
#3
Ko-Hsun Liao, Shing-Jyh Chang, Hsin-Chuan Chang, Chen-Li Chien, Tse-Shun Huang, Te-Chia Feng, Wen-Wei Lin, Chuan-Chi Shih, Muh-Hwa Yang, Shung-Haur Yang, Chi-Hung Lin, Wei-Lun Hwang, Oscar K Lee
Tissue angiogenesis is intimately regulated during embryogenesis and postnatal development. Defected angiogenesis contributes to aberrant development and is the main complication associated with ischemia-related diseases. We previously identified the increased expression of RUNX1T1 in umbilical cord blood-derived endothelial colony-forming cells (ECFCs) by gene expression microarray. However, the biological relevance of RUNX1T1 in endothelial lineage is not defined clearly. Here, we demonstrate RUNX1T1 regulates the survival, motility and tube forming capability of ECFCs and EA...
2017: PloS One
https://www.readbyqxmd.com/read/28636885/differential-changes-in-the-pharmacokinetics-of-statins-in-collagen-induced-arthritis-rats
#4
Chun-Han Lin, Ke-Wei Hsu, Chia-Hao Chen, Yow-Shieng Uang, Chun-Jung Lin
The elevated systemic levels of cytokines in rheumatoid arthritis (RA) can change the expression of metabolic enzymes and transporters. Given that statins are lipid-lowering agents frequently used in RA patients with concurrent cardiovascular diseases, the objective of the present study was to investigate the impacts of RA on the pharmacokinetics of statins of different disposition properties in rats with collagen-induced arthritis (CIA). The expression of metabolic enzymes and transporters in tissues of CIA rats were analyzed by RT-qPCR...
June 18, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28635262/enormous-hydrogen-bond-strength-enhancement-through-%C3%AF-conjugation-gain-implications-for-enzyme-catalysis
#5
Chia-Hua Wu, Keigo Ito, Allyson Buytendyk, Kit Hansell Bowen, Judy I Wu
Surprisingly large "resonance-assistance" effects may explain how some enzymes form extremely short, strong hydrogen bonds to stabilize reactive oxyanion intermediates and facilitate catalysis. Computational models for several enzymic residue-substrate interactions reveal that when a π-conjugated, proton donor (XH) forms a hydrogen bond to a charged substrate (Y-), XH can become significantly more π-electron delocalized, and this "extra" stabilization may boost the [XH…Y-] hydrogen bond strength by up to 15 kcal/mol...
June 21, 2017: Biochemistry
https://www.readbyqxmd.com/read/28634748/exposure-response-relationship-of-ramucirumab-in-east-asian-patients-from-rainbow-a-randomized-clinical-trial-in-second-line-treatment-of-gastric-cancer
#6
Tae You Kim, Chia-Jui Yen, Salah-Eddin Al-Batran, David Ferry, Ling Gao, Yanzhi Hsu, Rebecca Cheng, Mauro Orlando, Atsushi Ohtsu
BACKGROUND: Ramucirumab is a recombinant human IgG1 neutralizing monoclonal antibody specific for vascular endothelial growth factor receptor-2. Second-line ramucirumab, in conjunction with paclitaxel (ramucirumab 8 mg/kg or placebo in combination with 80 mg/m(2) paclitaxel), has been shown to be effective and safe in patients with advanced gastric or gastroesophageal junction (GEJ) adenocarcinoma in RAINBOW, a global phase III randomized clinical trial. We conducted an exploratory exposure-response analysis of efficacy and safety of ramucirumab in East Asian patients from the RAINBOW trial...
June 20, 2017: Gastric Cancer
https://www.readbyqxmd.com/read/28634242/type-ii-secretion-substrates-of-legionella-pneumophila-translocate-out-of-the-pathogen-occupied-vacuole-via-a-semipermeable-membrane
#7
Hilary K Truchan, Harry D Christman, Richard C White, Nakisha S Rutledge, Nicholas P Cianciotto
Legionella pneumophila replicates in macrophages in a host-derived phagosome, termed the Legionella-containing vacuole (LCV). While the translocation of type IV secretion (T4S) effectors into the macrophage cytosol is well established, the location of type II secretion (T2S) substrates in the infected host cell is unknown. Here, we show that the T2S substrate ProA, a metalloprotease, translocates into the cytosol of human macrophages, where it associates with the LCV membrane (LCVM). Translocation is detected as early as 10 h postinoculation (p...
June 20, 2017: MBio
https://www.readbyqxmd.com/read/28633580/platinum-agents-and-mitomycin-c-specific-complications-in-cytoreductive-surgery-crs-and-hyperthermic-intraperitoneal-chemotherapy-hipec
#8
Grace Hwei Ching Tan, Nicholas B Shannon, Claramae Shulyn Chia, Khee Chee Soo, Melissa Ching Ching Teo
INTRODUCTION: Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) have been found to prolong survival in patients with peritoneal disease but is associated with significant morbidity. We evaluate the perioperative complications and the association with the chemotherapy agent used for HIPEC. METHODS: Retrospective analysis of a prospectively collected database of CRS-HIPEC cases between April 2001 and February 2016 was performed. Patients were stratified by the chemotherapy used, and perioperative complications were compared...
June 20, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28632938/mek-inhibitors-induce-akt-activation-and-drug-resistance-by-suppressing-negative-feedback-erk-mediated-her2-phosphorylation-at-thr701
#9
Chia-Hung Chen, Te-Chun Hsia, Ming-Hsin Yeh, Tsung-Wei Chen, Yun-Ju Chen, Jung-Tsu Chen, Ya-Ling Wei, Chih-Yen Tu, Wei-Chien Huang
Targeting the MEK/ERK pathway has been viewed as a promising strategy for cancer therapy. However, MEK inhibition leads to the compensatory PI3K/AKT activation and thus contributes to the desensitization of cancer cells to MEK inhibitors. The underlying molecular mechanism of this event is not yet understood. In this study, our data showed that the induction of Akt activity by MEK inhibitors was specifically observed in HER2-positive breast cancer cells. Silence of HER2, or overexpression of HER2 kinase-dead mutant, prevents the induction of Akt activation in response to MEK inhibition, indicating HER2 as a critical regulator for this event...
June 20, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28632927/prospective-associations-between-environmental-heavy-metal-exposure-and-renal-outcomes-in-adults-with-chronic-kidney-disease
#10
Chun-Chieh Tsai, Chia-Lin Wu, Chew-Teng Kor, Ie-Bin Lian, Chin-Hua Chang, Teng-Hsiang Chang, Chia-Chu Chang, Ping-Fang Chiu
BACKGROUND: In Taiwan, Changhua County residents were exposed to high heavy metal pollution and exhibited high heavy metal levels in blood and urine. We examined associations between heavy metals in residential soil and renal outcomes of residents with chronic kidney disease (CKD). METHOD: From January 01, 2003 to June 30, 2015, we retrospectively identified CKD patients with an estimated glomerular filtration rate of <60 mL/min/1.73 m(2) at one tertiary care center...
June 20, 2017: Nephrology
https://www.readbyqxmd.com/read/28632846/suppression-of-hsp27-restores-retinal-function-and-protects-photoreceptors-from-apoptosis-in-a-light-induced-retinal-degeneration-animal-model
#11
Chih-Cheng Chien, Chi-Jung Huang, Lu-Tai Tien, Yu-Che Cheng, Chia-Ying Ke, Yih-Jing Lee
Purpose: We used a light-induced retinal degeneration animal model to investigate possible roles of heat shock protein 27 (HSP27) in retinal/photoreceptor protection. Methods: Sprague-Dawley rats were used for the light-induced retinal degeneration animal model. The histology of eye sections was observed for morphologic changes in the retina. Cell apoptosis was examined in each group using the terminal deoxynucleotidyl transferase dUTP nick-end labeling assay, and electroretinography was used to evaluate retinal function...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28632515/p4-stump-approach-for-intraoperative-portal-vein-stenting-in-pediatric-living-donor-liver-transplantation-an-innovative-technique-for-a-challenging-problem
#12
Chao-Long Chen, Yu-Fan Cheng, Viola Huang, Ting-Lung Lin, Yi-Chia Chan, Hsin-You Ou, Chee-Chien Yong, Shih-Ho Wang, Chih-Che Lin
OBJECTIVE: The aim of this study was to evaluate the utility of the P4 stump stenting approach for treating portal vein (PV) complications in pediatric living donor liver transplantation (LDLT). BACKGROUND: PV complications cause significant morbidity and mortality in pediatric LDLT. Biliary atresia in the backdrop of pathological PV hypoplasia and sclerosis heightens the complexity of PV reconstruction. The authors developed a novel approach for intraoperative PV stenting via the graft segment 4 PV stump (P4 stump) to address this challenge...
June 19, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28632428/clinical-and-socio-demographic-correlates-of-anxious-distress-in-asian-outpatients-with-major-depressive-disorder
#13
Narong Maneeton, Sirijit Suttajit, Benchalak Maneeton, Surinporn Likhitsathian, Kanokkwan Eurviyanukul, Pichet Udomratn, Edwin Shih-Yen Chan, Tian-Mei Si, Ahmad Hatim Sulaiman, Chia-Hui Chen, Dianne Bautista, Manit Srisurapanont
BACKGROUND: Anxious distress in major depressive disorder (MDD) is common and associated with poor outcomes and management difficulties. AIMS: This post hoc analysis aimed to examine the socio-demographic and clinical correlates of anxiety distress in Asian outpatients with MDD. METHODS: Instead of two out of five specifiers defined by the Diagnostic and Statistical Manual Version-5, anxious distress defined in this study was operationalized as the presence of at least two out of four proxy items drawn from the 90-item Symptom Checklist, Revised (SCL-90-R)...
June 20, 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/28631582/effect-of-green-tea-extract-supplementation-on-glycogen-replenishment-in-exercised-human-skeletal-muscle
#14
Tsen-Wei Tsai, Chia-Chen Chang, Su-Fen Liao, Yi-Hung Liao, Chien-Wen Hou, Jung-Piao Tsao, I-Shiung Cheng
The purpose of this study was to investigate the effects of 8-week green tea extract (GTE) supplementation on promoting postexercise muscle glycogen resynthesis and systemic energy substrate utilisation in young college students. A total of eight healthy male participants (age: 22·0 (se 1·0) years, BMI: 24·2 (se 0·7) kg/m2, VO2max: 43·2 (se 2·4) ml/kg per min) participated in this study. GTE (500 mg/d for 8 weeks) was compared with placebo in participants in a double-blind/placebo-controlled and crossover study design with an 8-week washout period...
June 20, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28631535/high-resolution-magnetic-resonance-imaging-for-exposing-facial-nerve-zonal-vulnerability-to-microbleeds-a-rare-cause-of-facial-palsy
#15
Charlie Chia-Tsong Hsu, Dalveer Singh, Trevor William Watkins, Gigi Nga Chi Kwan, Sachintha Hapugoda
Background We report a case of hypertensive microbleeds strategically located at the attached segment (AS) and root entry zone (REZ) at the left facial nerve causing facial paralysis. Case Report A 60-year-old woman presented with sudden onset left facial paralysis. Medical history was significant for poorly controlled hypertension secondary to bilateral adrenal hyperplasia (primary hyperaldosteronism). The patient was initially treated for presumptive Bell's palsy. Subsequent magnetic resonance imaging of the brain and internal auditory canal showed two microbleeds at the left cerebellopontine angle...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28631360/reduced-cell-attachment-to-poly-2-hydroxyethyl-methacrylate-coated-ventricular-catheters-in-vitro
#16
Brian W Hanak, Chia-Yun Hsieh, William Donaldson, Samuel R Browd, Kenneth K S Lau, William Shain
The majority of patients with hydrocephalus are dependent on ventriculoperitoneal shunts for diversion of excess cerebrospinal fluid. Unfortunately, these shunts are failure-prone and over half of all life-threatening pediatric failures are caused by obstruction of the ventricular catheter by the brain's resident immune cells, reactive microglia and astrocytes. Poly(2-hydroxyethyl methacrylate) (PHEMA) hydrogels are widely used for biomedical implants. The extreme hydrophilicity of PHEMA confers resistance to protein fouling, making it a strong candidate coating for ventricular catheters...
June 20, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28630399/dietary-mastic-oil-extracted-from-pistacia-lentiscus-var-chia-suppresses-tumor-growth-in-experimental-colon-cancer-models
#17
Katerina Spyridopoulou, Angeliki Tiptiri-Kourpeti, Evangeli Lampri, Eleni Fitsiou, Stavros Vasileiadis, Manolis Vamvakias, Haido Bardouki, Anna Goussia, Vasiliki Malamou-Mitsi, Mihalis I Panayiotidis, Alex Galanis, Aglaia Pappa, Katerina Chlichlia
Plant-derived bioactive compounds attract considerable interest as potential chemopreventive anticancer agents. We analyzed the volatile dietary phytochemicals (terpenes) present in mastic oil extracted from the resin of Pistacia lentiscus var. chia and comparatively investigated their effects on colon carcinoma proliferation, a) in vitro against colon cancer cell lines and b) in vivo on tumor growth in mice following oral administration. Mastic oil inhibited - more effectively than its major constituents- proliferation of colon cancer cells in vitro, attenuated migration and downregulated transcriptional expression of survivin (BIRC5a)...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28630144/crmp-1-enhances-evl-mediated-actin-elongation-to-build-lamellipodia-and-the-actin-cortex
#18
Hui-Chia Yu-Kemp, James P Kemp, William M Brieher
Cells can control actin polymerization by nucleating new filaments or elongating existing ones. We recently identified CRMP-1 as a factor that stimulates the formation of Listeria monocytogenes actin comet tails, thereby implicating it in actin assembly. We now show that CRMP-1 is a major contributor to actin assembly in epithelial cells, where it works with the Ena/VASP family member EVL to assemble the actin cytoskeleton in the apical cortex and in protruding lamellipodia. CRMP-1 and EVL bind to one another and together accelerate actin filament barbed-end elongation...
June 19, 2017: Journal of Cell Biology
https://www.readbyqxmd.com/read/28629479/evaluation-of-invasive-breast-cancer-samples-using-a-12-chemokine-gene-expression-score-correlation-with-clinical-outcomes
#19
Sangeetha Prabhakaran, Victoria T Rizk, Zhenjun Ma, Chia-Ho Cheng, Anders E Berglund, Dominico Coppola, Farah Khalil, James J Mulé, Hatem H Soliman
BACKGROUND: A unique 12-chemokine gene expression score (CS) accurately predicted the presence of tumor-localized, ectopic lymph node-like structures (TL-ELNs) and improved overall survival (OS) in primary colorectal cancer and metastatic melanoma. We analyzed the correlation between CS, clinicopathological variables, molecular data, and 366 survival in Moffitt Cancer Center's Total Cancer Care (TCC) patients with non-metastatic breast cancer. METHODS: Affymetrix gene expression profiles were used to interrogate the CS by the principal component method...
June 19, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28629208/breaking-through-the-multi-mesa-channel-width-limited-of-normally-off-gan-hemts-through-modulation-of-the-via-hole-length
#20
Cheng-Yen Chien, Wen-Hsin Wu, Yao-Hong You, Jun-Huei Lin, Chia-Yu Lee, Wen-Ching Hsu, Chieh-Hsiung Kuan, Ray-Ming Lin
We present new normally off GaN high-electron-mobility transistors (HEMTs) that overcome the typical limitations in multi-mesa-channel (MMC) width through modulation of the via-hole-length to regulate the charge neutrality screen effect. We have prepared enhancement-mode (E-mode) GaN HEMTs having widths of up to 300 nm, based on an enhanced surface pinning effect. E-mode GaN HEMTs having MMC structures and widths as well as via-hole-lengths of 100 nm/2 μm and 300 nm/6 μm, respectively, exhibited positive threshold voltages (V th) of 0...
December 2017: Nanoscale Research Letters
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