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https://www.readbyqxmd.com/read/28796864/individualized-adaptive-stereotactic-body-radiotherapy-for-liver-tumors-in-patients-at-high-risk-for-liver-damage-a-phase-2-clinical-trial
#1
Mary Feng, Krithika Suresh, Matthew J Schipper, Latifa Bazzi, Edgar Ben-Josef, Martha M Matuszak, Neehar D Parikh, Theodore H Welling, Daniel Normolle, Randall K Ten Haken, Theodore S Lawrence
Importance: Patients with preexisting liver dysfunction could benefit the most from personalized therapy for liver tumors to balance maximal tumor control and minimal risk of liver failure. We designed an individualized adaptive trial testing the hypothesis that adapting treatment based on change in liver function could optimize the therapeutic index for each patient. Objective: To characterize the safety and efficacy of individualized adaptive stereotactic body radiotherapy (SRBT) for liver tumors in patients who have preexisting liver dysfunction...
August 10, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28759651/rare-hiv-1-transmitted-founder-lineages-identified-by-deep-viral-sequencing-contribute-to-rapid-shifts-in-dominant-quasispecies-during-acute-and-early-infection
#2
Gustavo H Kijak, Eric Sanders-Buell, Agnes-Laurence Chenine, Michael A Eller, Nilu Goonetilleke, Rasmi Thomas, Sivan Leviyang, Elizabeth A Harbolick, Meera Bose, Phuc Pham, Celina Oropeza, Kultida Poltavee, Anne Marie O'Sullivan, Erik Billings, Melanie Merbah, Margaret C Costanzo, Joanna A Warren, Bonnie Slike, Hui Li, Kristina K Peachman, Will Fischer, Feng Gao, Claudia Cicala, James Arthos, Leigh A Eller, Robert J O'Connell, Samuel Sinei, Lucas Maganga, Hannah Kibuuka, Sorachai Nitayaphan, Mangala Rao, Mary A Marovich, Shelly J Krebs, Morgane Rolland, Bette T Korber, George M Shaw, Nelson L Michael, Merlin L Robb, Sodsai Tovanabutra, Jerome H Kim
In order to inform the rational design of HIV-1 preventive and cure interventions it is critical to understand the events occurring during acute HIV-1 infection (AHI). Using viral deep sequencing on six participants from the early capture acute infection RV217 cohort, we have studied HIV-1 evolution in plasma collected twice weekly during the first weeks following the advent of viremia. The analysis of infections established by multiple transmitted/founder (T/F) viruses revealed novel viral profiles that included: a) the low-level persistence of minor T/F variants, b) the rapid replacement of the major T/F by a minor T/F, and c) an initial expansion of the minor T/F followed by a quick collapse of the same minor T/F to low frequency...
July 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28753811/risk-of-upgrading-and-upstaging-among-10-000-patients-with-gleason-3-4-favorable-intermediate-risk-prostate-cancer
#3
David D Yang, Brandon A Mahal, Vinayak Muralidhar, Michelle D Nezolosky, Marie E Vastola, Shelby A Labe, Ninjin Boldbaatar, Martin T King, Neil E Martin, Peter F Orio, Clair J Beard, Karen E Hoffman, Quoc-Dien Trinh, Daniel E Spratt, Felix Y Feng, Paul L Nguyen
BACKGROUND: It is unknown whether active surveillance can be safely offered to patients with Gleason 3+4 favorable intermediate-risk (FIR) prostate cancer. OBJECTIVE: To examine the incidence and predictors of upgrading and upstaging among patients with Gleason 3+4 FIR disease. DESIGN, SETTING, AND PARTICIPANTS: The study involved 10 089 patients in the National Cancer Database diagnosed from 2010 to 2012 with Gleason 3+4 disease, prostate-specific antigen (PSA) <10ng/ml, and cT1c-2a prostate cancer with <50% positive biopsy cores (PBCs) who underwent radical prostatectomy...
June 17, 2017: European Urology Focus
https://www.readbyqxmd.com/read/28741793/telomerase-enzyme-deficiency-promotes-metabolic-dysfunction-in-murine-hepatocytes-upon-dietary-stress
#4
Raquel M Alves-Paiva, Sachiko Kajigaya, Xingmin Feng, Jichun Chen, Marie Desierto, Susan Wong, Danielle M Townsley, Flávia S Donaires, Adeline Bertola, Bin Gao, Neal S Young, Rodrigo T Calado
Short telomeres and genetic telomerase defects are risk factors for some human liver diseases, ranging from non-alcoholic fatty liver disease (NAFLD) and non-alcoholic steatohepatitis (NASH) to cirrhosis. In murine models, telomere dysfunction has been shown to metabolically compromise hematopoietic cells, liver, and heart via the activation of the p53-PGC axis METHODS: Tert- and Terc-deficient mice were challenged with liquid high fat diet (HFD). Liver metabolic contents were analyzed by CE-TOFMS and liver fat content was confirmed by confocal and electronic microscopy RESULTS: Tert-deficient but not Terc-deficient mice develop hepatocyte injury and frank steatosis when challenged with liquid HFD...
July 25, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28740896/the-big-data-effort-in-radiation-oncology-data-mining-or-data-farming
#5
REVIEW
Charles S Mayo, Marc L Kessler, Avraham Eisbruch, Grant Weyburne, Mary Feng, James A Hayman, Shruti Jolly, Issam El Naqa, Jean M Moran, Martha M Matuszak, Carlos J Anderson, Lynn P Holevinski, Daniel L McShan, Sue M Merkel, Sherry L Machnak, Theodore S Lawrence, Randall K Ten Haken
Although large volumes of information are entered into our electronic health care records, radiation oncology information systems and treatment planning systems on a daily basis, the goal of extracting and using this big data has been slow to emerge. Development of strategies to meet this goal is aided by examining issues with a data farming instead of a data mining conceptualization. Using this model, a vision of key data elements, clinical process changes, technology issues and solutions, and role for professional societies is presented...
October 2016: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/28729300/rapamycin-is-highly-effective-in-murine-models-of-immune-mediated-bone-marrow-failure
#6
Xingmin Feng, Zenghua Lin, Wanling Sun, Maile K Hollinger, Marie J Desierto, Keyvan Keyvanfar, Daniela Malide, Pawel Muranski, Jichun Chen, Neal S Young
Acquired aplastic anemia, the prototypical bone marrow failure disease, is characterized by pancytopenia and marrow hypoplasia. Most aplastic anemia patients respond to immunosuppressive therapy, usually as anti-thymocyte globulin and cyclosporine, but some relapse on cyclosporine withdrawal or require long-term administration of cyclosporine to maintain blood counts. In the current study, we tested efficacy of rapamycin as a new or alternative treatment in mouse models of immune-mediated bone marrow failure...
July 20, 2017: Haematologica
https://www.readbyqxmd.com/read/28707002/epigenetic-regulation-of-cellular-and-cytomegalovirus-genes-during-myeloid-cell-development
#7
Xue-Feng Liu, Mary Hummel, Michael Abecassis
Myeloid cells are important cell types that carry human cytomegalovirus. Latent viral DNA is present in CD34+ progenitor cells and their derived monocytes. However, differentiation of latently infected monocytes to mature macrophages or dendritic cells causes reactivation of latent viruses. During hematopoietic development, pluripotent genes are repressed, and lineage specific genes are activated in a step-wise manner. This process is governed by cell-type specific chromatin states. Enhancers in the hematopoietic system are highly dynamic and established by pioneer (first tier) transcription factors (TFs), which set the stage for second and third tier TF binding...
March 2017: Internal Medicine Review (Washington, D.C.: Online)
https://www.readbyqxmd.com/read/28705990/systemic-pan-ampk-activator-mk-8722-improves-glucose-homeostasis-but-induces-cardiac-hypertrophy
#8
Robert W Myers, Hong-Ping Guan, Juliann Ehrhart, Aleksandr Petrov, Srinivasa Prahalada, Effie Tozzo, Xiaodong Yang, Marc M Kurtz, Maria Trujillo, Dinko Gonzalez Trotter, Danqing Feng, Shiyao Xu, George Eiermann, Marie A Holahan, Daniel Rubins, Stacey Conarello, Xiaoda Niu, Sandra C Souza, Corin Miller, Jinqi Liu, Ku Lu, Wen Feng, Ying Li, Ronald E Painter, James A Milligan, Huaibing He, Franklin Liu, Aimie Ogawa, Douglas Wisniewski, Rory J Rohm, Liyang Wang, Michelle Bunzel, Ying Qian, Wei Zhu, Hongwu Wang, Bindu Bennet, Lisa LaFranco Scheuch, Guillermo E Fernandez, Cai Li, Michael Klimas, Gaochao Zhou, Margaret van Heek, Tesfaye Biftu, Ann Weber, David E Kelley, Nancy Thornberry, Mark D Erion, Daniel M Kemp, Iyassu K Sebhat
5'-Adenosine monophosphate-activated protein kinase (AMPK) is a master regulator of energy homeostasis in eukaryotes. Despite investigations over three decades, the biological roles of AMPK and its potential as a drug target remain incompletely understood, due largely to the lack of optimized pharmacological tools. We now report MK-8722, a potent, direct, allosteric activator of all twelve mammalian AMPK complexes. In rodents and rhesus monkeys, MK-8722-mediated AMPK activation in skeletal muscle induces robust, durable, insulin-independent glucose uptake and glycogen synthesis, with resultant improvements in glycemia and no evidence of hypoglycemia...
July 13, 2017: Science
https://www.readbyqxmd.com/read/28698670/urinary-extracellular-domain-of-neurotrophin-receptor-p75-as-a-biomarker-for-amyotrophic-lateral-sclerosis-in-a-chinese-cohort
#9
Rui Jia, Stephanie Shepheard, Jiaoting Jin, Fangfang Hu, Xing Zhao, Li Xue, Li Xiang, Huaguang Qi, Qiumin Qu, Feng Guo, Mary-Louise Rogers, Jingxia Dang
To comprehensively assess whether p75(ECD) in urine could be a candidate biomarker for ALS evaluation. Urine samples were collected from 101 ALS patients, 108 patients with other neurological disease (OND) and 97 healthy controls. 61 ALS patients were followed up with clinical data including ALSFRS-r every 6 to 12 months, 23 ALS patients died and 17 ALS patients lost touch during follow up period. Enzyme-linked immunoassay was employed to determine urine p75(ECD) concentration. The ALSFRS-r was employed to assess the severity of ALS...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28696275/a-lectin-receptor-like-kinase-mediates-pattern-triggered-salicylic-acid-signaling
#10
Xuming Luo, Ning Xu, Junkai Huang, Feng Gao, Huasong Zou, Marie Boudsocq, Gitta Coaker, Jun Liu
Plant surface-localized pathogen recognition receptors (PRRs) perceive conserved microbial features, termed pathogen-associated molecular patterns (PAMPs), resulting in disease resistance. PAMP perception leads to calcium influx, MAPK activation, a burst of reactive oxygen species (ROS) mediated by RbohD, accumulation of the defense hormone salicylic acid (SA), and callose deposition. Lectin receptor-like kinases (LecRKs) belong to a specific PRR family and are important players in plant innate immunity. Here, we report that LecRK-IX...
August 2017: Plant Physiology
https://www.readbyqxmd.com/read/28672128/exploring-pathways-linking-greenspace-to-health-theoretical-and-methodological-guidance
#11
REVIEW
Iana Markevych, Julia Schoierer, Terry Hartig, Alexandra Chudnovsky, Perry Hystad, Angel M Dzhambov, Sjerp de Vries, Margarita Triguero-Mas, Michael Brauer, Mark J Nieuwenhuijsen, Gerd Lupp, Elizabeth A Richardson, Thomas Astell-Burt, Donka Dimitrova, Xiaoqi Feng, Maya Sadeh, Marie Standl, Joachim Heinrich, Elaine Fuertes
BACKGROUND: In a rapidly urbanizing world, many people have little contact with natural environments, which may affect health and well-being. Existing reviews generally conclude that residential greenspace is beneficial to health. However, the processes generating these benefits and how they can be best promoted remain unclear. OBJECTIVES: During an Expert Workshop held in September 2016, the evidence linking greenspace and health was reviewed from a transdisciplinary standpoint, with a particular focus on potential underlying biopsychosocial pathways and how these can be explored and organized to support policy-relevant population health research...
June 30, 2017: Environmental Research
https://www.readbyqxmd.com/read/28659469/atm-loss-leads-to-synthetic-lethality-in-brca1-brct-mutant-mice-associated-with-exacerbated-defects-in-homology-directed-repair
#12
Chun-Chin Chen, Elizabeth M Kass, Wei-Feng Yen, Thomas Ludwig, Mary Ellen Moynahan, Jayanta Chaudhuri, Maria Jasin
BRCA1 is essential for homology-directed repair (HDR) of DNA double-strand breaks in part through antagonism of the nonhomologous end-joining factor 53BP1. The ATM kinase is involved in various aspects of DNA damage signaling and repair, but how ATM participates in HDR and genetically interacts with BRCA1 in this process is unclear. To investigate this question, we used the Brca1(S1598F) mouse model carrying a mutation in the BRCA1 C-terminal domain of BRCA1. Whereas ATM loss leads to a mild HDR defect in adult somatic cells, we find that ATM inhibition leads to severely reduced HDR in Brca1(S1598F) cells...
July 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28655159/two-distinct-metacommunities-characterize-the-gut-microbiota-in-crohn-s-disease-patients
#13
Qing He, Yuan Gao, Zhuye Jie, Xinlei Yu, Janne Marie Laursen, Liang Xiao, Ying Li, Lingling Li, Faming Zhang, Qiang Feng, Xiaoping Li, Jinghong Yu, Chuan Liu, Ping Lan, Ting Yan, Xin Liu, Xun Xu, Huanming Yang, Jian Wang, Lise Madsen, Susanne Brix, Jianping Wang, Karsten Kristiansen, Huijue Jia
Background: The inflammatory intestinal disorder Crohn's disease (CD) has become a health challenge worldwide. The gut microbiota closely interacts with the host immune system, but its functional impact in CD is unclear. Except for studies on a small number of CD patients, analyses of the gut microbiota in CD have used 16S rDNA amplicon sequencing. Here we employed metagenomic shotgun sequencing to provide a detailed characterization of the compositional and functional features of the CD microbiota, comprising also unannotated bacteria, and investigated its modulation by exclusive enteral nutrition (EEN)...
June 26, 2017: GigaScience
https://www.readbyqxmd.com/read/28652555/novel-orthodontic-cement-containing-dimethylaminohexadecyl-methacrylate-with-strong-antibacterial-capability
#14
Xiaodong Feng, Ning Zhang, Hockin H K Xu, Michael D Weir, Mary Anne S Melo, Yuxing Bai, Ke Zhang
Orthodontic treatments increase the incidence of white spot lesions. The objectives of this study were to develop an antibacterial orthodontic cement to inhibit demineralization, and to evaluate its enamel shear bond strength and anti-biofilm properties. Novel antibacterial monomer dimethylaminohexadecyl methacrylate (DMAHDM) was synthesized and incorporated into Transbond XT at 0, 1.5 and 3% by mass. Anti-biofilm activity was assessed using a human dental plaque microcosm biofilm model. Shear bond strength and adhesive remnant index were also tested...
June 23, 2017: Dental Materials Journal
https://www.readbyqxmd.com/read/28635286/utilization-of-an-active-site-mutant-receptor-for-the-identification-of-potent-and-selective-atypical-5-ht2c-receptor-agonists
#15
Joseph Carpenter, Ying Wang, Gang Wu, Jianxin Feng, Xiang-Yang Ye, Christian L Morales, Matthias Broekema, Karen A Rossi, Keith J Miller, Brian J Murphy, Ginger Wu, Sarah E Malmstrom, Anthony V Azzara, Philip M Sher, John M Fevig, Andrew Alt, Robert L Bertekap, Mary Jane Cullen, Timothy M Harper, Kimberly Foster, Emily Luk, Qian Xiang, Mary F Grubb, Jeffrey A Robl, Dean A Wacker
Agonism of the 5-HT2C receptor represents one of the most well-studied and clinically proven mechanisms for pharmacological weight reduction. Selectivity over the closely related 5-HT2A and 5-HT2B receptors is critical as their activation has been shown to lead to undesirable side effects and major safety concerns. In this communication, we report the development of a new screening paradigm that utilizes an active site mutant D134A (D3.32) 5-HT2C receptor to identify atypical agonist structures. We additionally report the discovery and optimization of a novel class of nonbasic heterocyclic amide agonists of 5-HT2C...
July 27, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28608424/evaluation-of-the-8th-edition-american-joint-commission-on-cancer-ajcc-staging-system-for-patients-with-intrahepatic-cholangiocarcinoma-a-surveillance-epidemiology-and-end-results-seer-analysis
#16
Yuhree Kim, Dimitrios P Moris, Xu-Feng Zhang, Fabio Bagante, Gaya Spolverato, Carl Schmidt, Mary Dilhoff, Timothy M Pawlik
BACKGROUND: The objective of this study was to assess the prognostic performance of American Joint Committee on Cancer (AJCC) 8th edition in patients with intrahepatic cholangiocarcinoma (ICC) using a cancer registry. METHODS: The Surveillance, Epidemiology, and End Results (SEER) cancer registry was queried to identify 1008 patients who underwent surgical resection of ICC during 1998-2013. Kaplan-Meier method and Cox proportional hazards regression models were used to analyze long-term survival...
June 12, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28592627/cytokines-are-markers-of-the-clostridium-difficile-induced-inflammatory-response-and-predict-disease-severity
#17
Hua Yu, Kevin Chen, Ying Sun, Mihaela Carter, Kevin W Garey, Tor C Savidge, Sridevi Devaraj, Mary Elizabeth Tessier, Erik C von Rosenvinge, Ciaran P Kelly, Marcela F Pasetti, Hanping Feng
The host immune response affects pathogen virulence in Clostridium difficile infection (CDI). Thus, cytokine responses to CDI are likely associated with disease initiation and progression. Understanding the molecular drivers of inflammation and biochemical markers of disease severity are important for developing novel therapies and predicting the disease prognosis. In this study, we investigated cytokine production in patients with CDI and evaluated the potential of cytokines to serve as biomarkers for CDI and predictors of disease severity...
June 7, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28540841/lung-or-heart-lung-transplant-in-pulmonary-arterial-hypertension-what-is-the-impact-of-systemic-sclerosis
#18
Shruti K Gadre, Omar A Minai, Xiao-Feng Wang, Qi Zhang, Marie Budev, Adriano R Tonelli
OBJECTIVES: Little is known about recipient characteristics and outcomes of patients with pulmonary arterial hypertension undergoing lung transplant, particularly those with systemic sclerosis-associated disease. Here, we describe the characteristics and outcomes of patients with pulmonary arterial hypertension undergoing lung transplant, focusing on systemic sclerosis-associated disease. MATERIALS AND METHODS: This retrospective study included pulmonary arterial hypertension patients undergoing lung or heart-lung transplant between July 1992 and August 2013 at a single center...
May 22, 2017: Experimental and Clinical Transplantation
https://www.readbyqxmd.com/read/28533371/blue-fluorescent-amino-acid-for-biological-spectroscopy-and-microscopy
#19
Mary Rose Hilaire, Ismail A Ahmed, Chun-Wei Lin, Hyunil Jo, William F DeGrado, Feng Gai
Many fluorescent proteins are currently available for biological spectroscopy and imaging measurements, allowing a wide range of biochemical and biophysical processes and interactions to be studied at various length scales. However, in applications where a small fluorescence reporter is required or desirable, the choice of fluorophores is rather limited. As such, continued effort has been devoted to the development of amino acid-based fluorophores that do not require a specific environment and additional time to mature and have a large fluorescence quantum yield, long fluorescence lifetime, good photostability, and an emission spectrum in the visible region...
June 6, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28533151/low-rates-of-androgen-deprivation-therapy-use-with-salvage-radiation-therapy-in-patients-with-prostate-cancer-after-radical-prostatectomy
#20
David D Yang, Vinayak Muralidhar, Brandon A Mahal, Michelle D Nezolosky, Shelby A Labe, Marie E Vastola, Ninjin Boldbaatar, Martin T King, Neil E Martin, Peter F Orio, Tni K Choueiri, Quoc-Dien Trinh, Robert B Den, Daniel E Spratt, Karen E Hoffman, Felix Y Feng, Paul L Nguyen
OBJECTIVE: The RTOG 9601 and GETUG-AFU 16 randomized controlled trials demonstrated that the addition of androgen deprivation therapy (ADT) to salvage radiation therapy (SRT) improves progression-free and, for RTOG 9601, overall survival. We examined national trends in the use of ADT with SRT. MATERIALS AND METHODS: Of the 484,009 patients in the National Cancer Database from 2004 to 2012 with localized or locally advanced prostate cancer treated with radical prostatectomy (RP), 4,200 men received SRT (≥6mo after surgery)...
May 19, 2017: Urologic Oncology
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