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michael lin

Subhadip Goswami, Lin Ma, Alex B F Martinson, Michael R Wasielewski, Omar K Farha, Joseph T Hupp
Owing to their ability to act as light-harvesting scaffolds, porphyrin-containing metal-organic frameworks (MOFs) are in the forefront of research on the application of highly ordered molecular materials to problems in solar-energy conversion. In this work, solvent assisted linker exchange (SALE) is performed on a pillared paddlewheel porphyrin containing MOF thin film to collapse a 3D-framework to a 2D-framework. The change in dimensionality of the framework is confirmed by a decrease in the film thickness, the magnitude of which is in agreement with crystallographic parameters for related bulk materials...
October 21, 2016: ACS Applied Materials & Interfaces
Michael McConnell, Rajendra Kumar, Behrang Amini, Patrick P Lin, Wei-Lien Wang
We present the case of an 83-year-old man who had painful swelling of right knee for 6 months. Radiographs showed a large intra-articular soft-tissue mass with small calcifications, whereas MRI detected a multilobulated intra-articular tumor with bone erosions at the distal femur. Histopathology of ultrasound-guided biopsy specimen of the synovial mass revealed it to be a poorly differentiated metastatic carcinoma. Abdominal computed tomography with intravenous contrast medium administration found a heterogeneously enhancing large right renal mass with calcifications, which was shown to be a renal cell carcinoma on histopathology...
October 20, 2016: Skeletal Radiology
Wei-Min Chang, Yuan-Feng Lin, Chia-Yi Su, Hsuan-Yu Peng, Yu-Chan Chang, Tsung-Ching Lai, Guan-Hsun Wu, Yuan-Ming Hsu, Li-Hsing Chi, Jenn-Ren Hsiao, Chi-Long Chen, Jang-Yang Chang, Yi-Shing Shieh, Michael Hsiao, Shine-Gwo Shiah
Epigenetic correlates of head and neck cancer may illuminate its pathogenic roots. Through a gene set enrichment analysis, we found that the oncogenic transcription factor RUNX2 is widely upregulated in head and neck squamous cell carcinoma (HNSCC) with lymph node metastasis, where it also predicts poor prognosis in HNSCC patients. Enforced expression of ectopic RUNX2 promoted the metastatic capabilities of HNSCC, whereas RUNX2 silencing inhibited these features. Mechanistic investigations showed that manipulating levels of activin A (INHBA) could rescue or compromise the RUNX2-mediated metastatic capabilities of HNSCC cells...
October 19, 2016: Cancer Research
Yan-Mei Chen, Yong Shi, Christy A Tremonti, Matt Bershady, Michael Merrifield, Eric Emsellem, Yi-Fei Jin, Song Huang, Hai Fu, David A Wake, Kevin Bundy, David Stark, Lihwai Lin, Maria Argudo-Fernandez, Thaisa Storchi Bergmann, Dmitry Bizyaev, Joel Brownstein, Martin Bureau, John Chisholm, Niv Drory, Qi Guo, Lei Hao, Jian Hu, Cheng Li, Ran Li, Alexandre Roman Lopes, Kai-Ke Pan, Rogemar A Riffel, Daniel Thomas, Lan Wang, Kyle Westfall, Ren-Bin Yan
Galaxies grow through both internal and external processes. In about 10% of nearby red galaxies with little star formation, gas and stars are counter-rotating, demonstrating the importance of external gas acquisition in these galaxies. However, systematic studies of such phenomena in blue, star-forming galaxies are rare, leaving uncertain the role of external gas acquisition in driving evolution of blue galaxies. Here, based on new measurements with integral field spectroscopy of a large representative galaxy sample, we find an appreciable fraction of counter-rotators among blue galaxies (9 out of 489 galaxies)...
October 19, 2016: Nature Communications
Jesus Duque-Afonso, Chiou-Hong Lin, Kyuho Han, Michael C Wei, Jue Feng, Jason Kurzer, Corina Schneidawind, Stephen H K Wong, Michael C Bassik, Michael L Cleary
There is limited understanding of how signaling pathways are altered by oncogenic fusion transcription factors that drive leukemogenesis. To address this, we interrogated activated signaling pathways in a comparative analysis of mouse and human leukemias expressing the fusion protein E2A-PBX1, which is present in 5-7% of pediatric and 50% of pre-B-cell receptor (preBCR+) acute lymphocytic leukemia (ALL). In this study, we describe remodeling of signaling networks by E2A-PBX1 in pre-B-ALL which result in hyperactivation of the key oncogenic effector enzyme PLCγ2...
October 7, 2016: Cancer Research
Nathan R Tucker, Saagar Mahida, Jiangchuan Ye, Elizabeth J Abraham, Julie A Mina, Victoria A Parsons, Michael A McLellan, Marisa A Shea, Alan Hanley, Emelia J Benjamin, David J Milan, Honghuang Lin, Patrick T Ellinor
BACKGROUND: The genetic basis of atrial fibrillation (AF) and congenital heart disease remains incompletely understood. OBJECTIVE: We sought to determine the causative mutation in a family with AF, atrial septal and ventricular septal defects. METHODS: We evaluated a pedigree with 16 family members, one with an atrial septal defect, one with a ventricular septal defect and three with AF; we performed whole exome sequencing in three affected family members...
October 15, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Michael H Rivner, Siyang Liu, Brandy Quarles, Brandi Fleenor, Chengyong Shen, Jinxiu Pan, Lin Mei
INTRODUCTION: The prevalence and characteristics of Agrin and LRP4 antibody positive amyotrophic lateral sclerosis (ALS) patients were studied. METHODS: We tested 82 ALS patients and 59 controls for Agrin and LRP4 antibodies using ELISA. RESULTS: We found that 13.8% of ALS patients had Agrin antibodies, and 9.8% had LRP4 antibodies. Women ALS patients are twice as likely as men to have antibodies. Agrin-positive ALS patients are younger than Agrin-negative ALS patients...
October 18, 2016: Muscle & Nerve
Lin Ma, Feng Hao, Constantinos C Stoumpos, Brian T Phelan, Michael R Wasielewski, Mercouri G Kanatzidis
The dynamics of photoexcited lead-free perovskite films, CH3NH3SnI3, were studied using broadband transient absorption (TA) and time-resolved fluorescence (TRF) spectroscopy. Similar to its lead analogue CH3NH3PbI3, we show that free carrier (electrons and holes) recombination is also the dominant relaxation pathway in CH3NH3SnI3 films. The slow hot carrier relaxation time is 0.5 ps. Long carrier diffusion lengths for electrons (279 ± 88 nm) and holes (193 ± 46 nm) were obtained from fluorescence quenching measurements...
October 17, 2016: Journal of the American Chemical Society
Michael T Jarratt, Terry M Jones, Joan-En Chang-Lin, Warren Tong, David R Berk, Vince Lin, Alexandre Kaoukhov
BACKGROUND: Reducing the dosing frequency of topical acne treatments to once daily may improve adherence. OBJECTIVE: Evaluate pharmacokinetics (PK), safety, and tolerability of 3 formulations of once-daily dapsone gel, 7.5% and of twice-daily dapsone gel, 5% over 28 days in patients with moderate acne vulgaris. METHODS: This phase 1, multicenter, parallel-group study randomized males and females aged 16 to 35 years to 1 of 3 dapsone gel, 7...
October 1, 2016: Journal of Drugs in Dermatology: JDD
Yuri P Springer, Roy Gerona, Erich Scheunemann, Sarah L Shafer, Thomas Lin, Samuel D Banister, Michael P Cooper, Louisa J Castrodale, Michael Levy, Jay C Butler, Joseph B McLaughlin
In July 2015, personnel in the Alaska Division of Public Health's Section of Epidemiology became aware of an increase in the number of patients being treated in Anchorage hospital emergency departments for adverse reactions associated with use of synthetic cannabinoids (SCs). SCs are a chemically diverse class of designer drugs that bind to the same cannabinoid receptors as tetrahydrocannabinol, the main psychoactive component of cannabis. A public health investigation was initiated to describe clinical outcomes, characterize the outbreak, and identify SC chemicals circulating in Anchorage...
October 14, 2016: MMWR. Morbidity and Mortality Weekly Report
Daniele Muser, Pasquale Santangeli, Simon A Castro, Rajeev K Pathak, Jackson J Liang, Tatsuya Hayashi, Silvia Magnani, Fermin C Garcia, Mathew D Hutchinson, Gregory G Supple, David S Frankel, Michael P Riley, David Lin, Robert D Schaller, Sanjay Dixit, Erica S Zado, David J Callans, Francis E Marchlinski
BACKGROUND: Catheter ablation (CA) of ventricular tachycardia (VT) in patients with nonischemic dilated cardiomyopathy can be challenging because of the complexity of underlying substrates. We sought to determine the long-term outcomes of endocardial and adjuvant epicardial CA in nonischemic dilated cardiomyopathy. METHODS AND RESULTS: We examined 282 consecutive patients (aged 59±15 years, 80% males) with nonischemic dilated cardiomyopathy who underwent CA. Ablation was guided by activation/entrainment mapping for tolerated VT and pacemapping/targeting of abnormal electrograms for unmappable VT...
October 2016: Circulation. Arrhythmia and Electrophysiology
Padmanee Sharma, Margaret K Callahan, Petri Bono, Joseph Kim, Pavlina Spiliopoulou, Emiliano Calvo, Rathi N Pillai, Patrick A Ott, Filippo de Braud, Michael Morse, Dung T Le, Dirk Jaeger, Emily Chan, Chris Harbison, Chen-Sheng Lin, Marina Tschaika, Alex Azrilevich, Jonathan E Rosenberg
BACKGROUND: Few effective treatments exist for patients with advanced urothelial carcinoma that has progressed after platinum-based chemotherapy. We assessed the activity and safety of nivolumab in patients with locally advanced or metastatic urothelial carcinoma whose disease progressed after previous platinum-based chemotherapy. METHODS: In this phase 1/2, multicentre, open-label study, we enrolled patients (age ≥18 years) with urothelial carcinoma of the renal pelvis, ureter, bladder, or urethra at 16 sites in Finland, Germany, Spain, the UK, and the USA...
October 7, 2016: Lancet Oncology
Dustin A Carlson, Peter J Kahrilas, Zhiyue Lin, Ikuo Hirano, Nirmala Gonsalves, Zoe Listernick, Katherine Ritter, Michael Tye, Fraukje A Ponds, Ian Wong, John E Pandolfino
OBJECTIVES: Esophagogastric junction (EGJ) distensibility and distension-mediated peristalsis can be assessed with the functional lumen imaging probe (FLIP) during a sedated upper endoscopy. We aimed to describe esophageal motility assessment using FLIP topography in patients presenting with dysphagia. METHODS: In all, 145 patients (aged 18-85 years, 54% female) with dysphagia that completed upper endoscopy with a 16-cm FLIP assembly and high-resolution manometry (HRM) were included...
October 11, 2016: American Journal of Gastroenterology
Jian Gong, Carolyn M Hutter, Polly A Newcomb, Cornelia M Ulrich, Stephanie A Bien, Peter T Campbell, John A Baron, Sonja I Berndt, Stephane Bezieau, Hermann Brenner, Graham Casey, Andrew T Chan, Jenny Chang-Claude, Mengmeng Du, David Duggan, Jane C Figueiredo, Steven Gallinger, Edward L Giovannucci, Robert W Haile, Tabitha A Harrison, Richard B Hayes, Michael Hoffmeister, John L Hopper, Thomas J Hudson, Jihyoun Jeon, Mark A Jenkins, Jonathan Kocarnik, Sébastien Küry, Loic Le Marchand, Yi Lin, Noralane M Lindor, Reiko Nishihara, Shuji Ogino, John D Potter, Anja Rudolph, Robert E Schoen, Petra Schrotz-King, Daniela Seminara, Martha L Slattery, Stephen N Thibodeau, Mark Thornquist, Reka Toth, Robert Wallace, Emily White, Shuo Jiao, Mathieu Lemire, Li Hsu, Ulrike Peters
Genome-wide association studies (GWAS) have identified many genetic susceptibility loci for colorectal cancer (CRC). However, variants in these loci explain only a small proportion of familial aggregation, and there are likely additional variants that are associated with CRC susceptibility. Genome-wide studies of gene-environment interactions may identify variants that are not detected in GWAS of marginal gene effects. To study this, we conducted a genome-wide analysis for interaction between genetic variants and alcohol consumption and cigarette smoking using data from the Colon Cancer Family Registry (CCFR) and the Genetics and Epidemiology of Colorectal Cancer Consortium (GECCO)...
October 2016: PLoS Genetics
Paul Kwo, Edward Gane, Cheng-Yuan Peng, Brian Pearlman, John M Vierling, Lawrence Serfaty, Maria Buti, Stephen Shafran, Paul Stryszak, Li Lin, Jacqueline Gress, Stuart Black, Frank J Dutko, Michael Robertson, Janice Wahl, Lisa Lupinacci, Eliav Barr, Barbara Haber
BACKGROUND & AIMS: Patients infected with hepatitis C virus (HCV) genotype 1, 4, or 6, with or without cirrhosis, previously treated with peg-interferon and ribavirin, are a challenge to treat. We performed a phase 3 randomized controlled open-label trial to assess the effects of 12 or 16 weeks of treatment with once-daily elbasvir (an HCV NS5A inhibitor, 50 mg) and grazoprevir (an HCV NS3/4A protease inhibitor, 100 mg), in a fixed-dose combination tablet, with or without twice-daily ribavirin, in this patient population...
October 5, 2016: Gastroenterology
Wei-Chung Tsai, Yi-Hsin Chan, Kroekkiat Chinda, Zhenhui Chen, Jheel Patel, Changyu Shen, Ye Zhao, Zhaolei Jiang, Yuan Yuan, Michael Ye, Lan S Chen, Amanda A Riley, Scott A Persohn, Paul R Territo, Thomas H Everett, Shien-Fong Lin, Harry V Vinters, Michael C Fishbein, Peng-Sheng Chen
BACKGROUND: Renal sympathetic denervation (RD) is a promising method of neuromodulation for the management of cardiac arrhythmia. OBJECTIVE: We tested the hypothesis that RD is antiarrhythmic in ambulatory dogs because it reduces the stellate ganglion nerve activity (SGNA) by remodeling the stellate ganglion (SG) and brain stem. METHODS: We implanted a radiotransmitter to record SGNA and electrocardiogram in 9 ambulatory dogs for 2 weeks, followed by a 2nd surgery for RD and 2 months SGNA recording...
October 5, 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Nicolas A Menzies, Gabriela B Gomez, Fiammetta Bozzani, Susmita Chatterjee, Nicola Foster, Ines Garcia Baena, Yoko V Laurence, Sun Qiang, Andrew Siroka, Sedona Sweeney, Stéphane Verguet, Nimalan Arinaminpathy, Andrew S Azman, Eran Bendavid, Stewart T Chang, Ted Cohen, Justin T Denholm, David W Dowdy, Philip A Eckhoff, Jeremy D Goldhaber-Fiebert, Andreas Handel, Grace H Huynh, Marek Lalli, Hsien-Ho Lin, Sandip Mandal, Emma S McBryde, Surabhi Pandey, Joshua A Salomon, Sze-Chuan Suen, Tom Sumner, James M Trauer, Bradley G Wagner, Christopher C Whalen, Chieh-Yin Wu, Delia Boccia, Vineet K Chadha, Salome Charalambous, Daniel P Chin, Gavin Churchyard, Colleen Daniels, Puneet Dewan, Lucica Ditiu, Jeffrey W Eaton, Alison D Grant, Piotr Hippner, Mehran Hosseini, David Mametja, Carel Pretorius, Yogan Pillay, Kiran Rade, Suvanand Sahu, Lixia Wang, Rein M G J Houben, Michael E Kimerling, Richard G White, Anna Vassall
BACKGROUND: The post-2015 End TB Strategy sets global targets of reducing tuberculosis incidence by 50% and mortality by 75% by 2025. We aimed to assess resource requirements and cost-effectiveness of strategies to achieve these targets in China, India, and South Africa. METHODS: We examined intervention scenarios developed in consultation with country stakeholders, which scaled up existing interventions to high but feasible coverage by 2025. Nine independent modelling groups collaborated to estimate policy outcomes, and we estimated the cost of each scenario by synthesising service use estimates, empirical cost data, and expert opinion on implementation strategies...
November 2016: Lancet Global Health
Rein M G J Houben, Nicolas A Menzies, Tom Sumner, Grace H Huynh, Nimalan Arinaminpathy, Jeremy D Goldhaber-Fiebert, Hsien-Ho Lin, Chieh-Yin Wu, Sandip Mandal, Surabhi Pandey, Sze-Chuan Suen, Eran Bendavid, Andrew S Azman, David W Dowdy, Nicolas Bacaër, Allison S Rhines, Marcus W Feldman, Andreas Handel, Christopher C Whalen, Stewart T Chang, Bradley G Wagner, Philip A Eckhoff, James M Trauer, Justin T Denholm, Emma S McBryde, Ted Cohen, Joshua A Salomon, Carel Pretorius, Marek Lalli, Jeffrey W Eaton, Delia Boccia, Mehran Hosseini, Gabriela B Gomez, Suvanand Sahu, Colleen Daniels, Lucica Ditiu, Daniel P Chin, Lixia Wang, Vineet K Chadha, Kiran Rade, Puneet Dewan, Piotr Hippner, Salome Charalambous, Alison D Grant, Gavin Churchyard, Yogan Pillay, L David Mametja, Michael E Kimerling, Anna Vassall, Richard G White
BACKGROUND: The post-2015 End TB Strategy proposes targets of 50% reduction in tuberculosis incidence and 75% reduction in mortality from tuberculosis by 2025. We aimed to assess whether these targets are feasible in three high-burden countries with contrasting epidemiology and previous programmatic achievements. METHODS: 11 independently developed mathematical models of tuberculosis transmission projected the epidemiological impact of currently available tuberculosis interventions for prevention, diagnosis, and treatment in China, India, and South Africa...
November 2016: Lancet Global Health
Alain Ravaud, Robert J Motzer, Hardev S Pandha, Daniel J George, Allan J Pantuck, Anup Patel, Yen-Hwa Chang, Bernard Escudier, Frede Donskov, Ahmed Magheli, Giacomo Carteni, Brigitte Laguerre, Piotr Tomczak, Jan Breza, Paola Gerletti, Mariajose Lechuga, Xun Lin, Jean-Francois Martini, Krishnan Ramaswamy, Michelle Casey, Michael Staehler, Jean-Jacques Patard
Background Sunitinib, a vascular endothelial growth factor pathway inhibitor, is an effective treatment for metastatic renal-cell carcinoma. We sought to determine the efficacy and safety of sunitinib in patients with locoregional renal-cell carcinoma at high risk for tumor recurrence after nephrectomy. Methods In this randomized, double-blind, phase 3 trial, we assigned 615 patients with locoregional, high-risk clear-cell renal-cell carcinoma to receive either sunitinib (50 mg per day) or placebo on a 4-weeks-on, 2-weeks-off schedule for 1 year or until disease recurrence, unacceptable toxicity, or consent withdrawal...
October 9, 2016: New England Journal of Medicine
Lin Kooi Ong, Zidan Zhao, Murielle Kluge, Clifford TeBay, Katarzyna Zalewska, Phillip W Dickson, Sarah J Johnson, Michael Nilsson, Frederick R Walker
Exposure to psychological stress is known to seriously disrupt the operation of the substantia nigra (SN) and may in fact initiate the loss of dopaminergic neurons within the SN. In this study, we aimed to investigate how chronic stress modified the SN in adult male mice. Using a paradigm of repeated restraint stress (an average of 20 h per week for 6 weeks), we examined changes within the SN using a combination of western blotting and immunohistochemistry approaches. We demonstrated that chronic stress was associated with a clear loss of dopaminergic neurons within the SN...
October 4, 2016: Brain, Behavior, and Immunity
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