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Charlene M Kahler
No abstract text is available yet for this article.
March 8, 2018: Future Microbiology
Katharina C Kähler, Thomas K Eigentler, Anja Gesierich, Lucie Heinzerling, Carmen Loquai, Friedegund Meier, Frank Meiss, Claudia Pföhler, Max Schlaak, Patrick Terheyden, Kai M Thoms, Mirjana Ziemer, Lisa Zimmer, Ralf Gutzmer
BACKGROUND: Ipilimumab and programmed death (PD) 1-antibodies are effective treatment options in metastatic melanoma. The safety and efficacy of ipilimumab in patients with pre-existing autoimmune disorders (AD) has only been evaluated in a selected number of patients. METHODS: We performed a retrospective analysis in 14 German skin cancer centers for patients with metastatic melanoma and pre-existing AD treated with ipilimumab. RESULTS: 41 patients with 44 pre-existing AD were treated with ipilimumab (thyroiditis n = 15, rheumatoid n = 11, dermatologic n = 10, Crohn's disease/ulcerative colitis n = 3, neurological n = 2, sarcoidosis n = 2, pancreatitis n = 1)...
February 27, 2018: Cancer Immunology, Immunotherapy: CII
Barakat A Al Suwayyid, Geoffrey W Coombs, David J Speers, Julie Pearson, Michael J Wise, Charlene M Kahler
BACKGROUND: Neisseria gonorrhoeae causes gonorrhoea, the second most commonly notified sexually transmitted infection in Australia. One of the highest notification rates of gonorrhoea is found in the remote regions of Western Australia (WA). Unlike isolates from the major Australian population centres, the remote community isolates have low rates of antimicrobial resistance (AMR). Population structure and whole-genome comparison of 59 isolates from the Western Australian N. gonorrhoeae collection were used to investigate relatedness of isolates cultured in the metropolitan and remote areas...
February 27, 2018: BMC Genomics
Roeland Vanhoutte, Jan Pascal Kahler, Shaun Martin, Sarah van Veen, Steven Verhelst
Polyamines are essential for cell growth and differentiation, but their trafficking by the polyamine transport system is not fully understood. In this paper, we describe the synthesis of several azido-derivatized polyamines for easy conjugation by click chemistry. Attachment of a BODIPY-dye gave fluorescent polyamine probes, which were tested in cell culture. The linear probe series showed superior cellular uptake compared with the probes where the dye was attached to a branch on one of the central amines. Interestingly, the linear probes accumulated rapidly in cancer cells (MCF-7), but not in non-tumorigenic cells (MCF-10A)...
February 16, 2018: Chembiochem: a European Journal of Chemical Biology
Wei Zheng, Thaddeus P Dryja, Zhongyuan Wei, Dongying Song, Haijun Tian, Kristijan H Kahler, Anthony P Khawaja
PURPOSE: To identify associations between systemic medications and primary open-angle glaucoma (POAG) requiring a procedure using United States insurance claims data in a hypothesis-generating study. DESIGN: Database study. PARTICIPANTS: In total, 6130 POAG cases (defined as patients with POAG undergoing a glaucoma procedure) were matched to 30 650 controls (defined as patients undergoing cataract surgery but without a coded glaucoma diagnosis, procedure, or medication) by age, gender, and region of residence...
February 9, 2018: Ophthalmology
Z Khammar, M Ouazzani, B Bennani, N Oubelkacem, R Berrady
Digital ulcers generally arise in a context of microangiopathy-related focal ischemia. In women, connective tissue diseases are the main etiology, while in men the cause is often diffuse arterial disease, e.g. Leo-Buerger disease, or emboligenic heart disease. A paraneoplastic origin of digital necrosis due to ischemia is rarely reported. A 75-year-old man presented with cyanosis of the fingertips and toes that had begun one month earlier. The physical examination found pulp ulcers on the fingers and toes of both hands and feet...
February 2018: Journal de Médecine Vasculaire
Jennifer A Horney, Gaston A Casillas, Erin Baker, Kahler W Stone, Katie R Kirsch, Krisa Camargo, Terry L Wade, Thomas J McDonald
INTRODUCTION: Polycyclic aromatic hydrocarbons (PAHs) are complex environmental toxicants. Exposure to them has been linked to adverse health outcomes including cancer, as well as diseases of the skin, liver, and immune system. Based on an ongoing community engagement partnership with stakeholder groups and residents, we conducted a small longitudinal study to assess domestic exposure to PAHs among residents of Manchester, an environmental justice neighborhood located in the East End of Houston, TX...
2018: PloS One
Jennifer R Cope, Jennifer Murphy, Amy Kahler, Daniel G Gorbett, Ibne Ali, Brandi Taylor, Lisa Corbitt, Shantanu Roy, Nicole Lee, Dawn Roellig, Scott Brewer, Vincent R Hill
Background: Naegleria fowleri is a thermophilic ameba found in freshwater that causes primary amebic meningoencephalitis (PAM) when it enters the nose and migrates to the brain. Patient exposure to water containing the ameba typically occurs in warm freshwater lakes and ponds during recreational water activities. In June 2016, an 18-year-old woman died of PAM after traveling to North Carolina, where she participated in rafting on an artificial whitewater river. Methods: We conducted an epidemiologic and environmental investigation to determine the water exposure that led to the death of this patient...
February 1, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
Mats Brännström, Pernilla Dahm-Kähler, Niclas Kvarnström
No abstract text is available yet for this article.
February 2018: Fertility and Sterility
Shannon Rose, Sirish C Bennuri, Jakeira E Davis, Rebecca Wynne, John C Slattery, Marie Tippett, Leanna Delhey, Stephan Melnyk, Stephen G Kahler, Derrick F MacFabe, Richard E Frye
Butyrate (BT) is a ubiquitous short-chain fatty acid (SCFA) principally derived from the enteric microbiome. BT positively modulates mitochondrial function, including enhancing oxidative phosphorylation and beta-oxidation and has been proposed as a neuroprotectant. BT and other SCFAs have also been associated with autism spectrum disorders (ASD), a condition associated with mitochondrial dysfunction. We have developed a lymphoblastoid cell line (LCL) model of ASD, with a subset of LCLs demonstrating mitochondrial dysfunction (AD-A) and another subset of LCLs demonstrating normal mitochondrial function (AD-N)...
February 2, 2018: Translational Psychiatry
Roxanne P Smith, Andrew E Whitten, Jason J Paxman, Charlene M Kahler, Martin J Scanlon, Begoña Heras
The membrane protein DsbD is a reductase that acts as an electron hub, translocating reducing equivalents from cytoplasmic thioredoxin to a number of periplasmic substrates involved in oxidative protein folding, cytochrome c maturation and oxidative stress defence. DsbD is a multi-domain protein consisting of a transmembrane domain (t-DsbD) flanked by two periplasmic domains (n-DsbD and c-DsbD). Previous studies have shown that DsbD is required for the survival of the obligate human pathogen Neisseria meningitidis...
January 1, 2018: Acta Crystallographica. Section F, Structural Biology Communications
Oleg Alekseev, Mark Mineev-Weinstein
We develop statistical mechanics for stochastic growth processes and apply it to Laplacian growth by using its remarkable connection with a random matrix theory. The Laplacian growth equation is obtained from the variation principle and describes adiabatic (quasistatic) thermodynamic processes in the two-dimensional Dyson gas. By using Einstein's theory of thermodynamic fluctuations we consider transitional probabilities between thermodynamic states, which are in a one-to-one correspondence with simply connected domains occupied by gas...
July 2017: Physical Review. E
Louis M Lin, Sahng G Kim, Gabriela Martin, Bill Kahler
Three immature permanent teeth with pulp necrosis and apical periodontitis were treated with regenerative endodontic therapy (RET), which included root canal disinfection with sodium hypochlorite irrigation, intra-canal medication with calcium hydroxide paste, 17% EDTA rinse, induction of periapical bleeding into the canal, collagen matrix and MTA coronal seal, and composite resin restoration of access cavities. After different periods of follow-up, it was observed that continued root maturation, especially apical closure occurred despite persistent apical periodontitis of immature permanent teeth after failed RET...
January 16, 2018: Australian Endodontic Journal: the Journal of the Australian Society of Endodontology Inc
Patricia A Cioe, Kate M Guthrie, Matthew S Freiberg, David M Williams, Christopher W Kahler
Persons living with HIV (PLWH) have elevated risks for cardiovascular disease (CVD). Our goal was to develop and pilot test a tailored intervention to improve CVD risk perception and the adoption of heart-healthy behaviors. In-depth qualitative interviews were conducted with 30 PLWH participants to examine learning needs and preferences. An intervention manual was developed and tested in an open pilot with eight participants. Participants were stable on antiretroviral therapy and were recruited from two urban HIV clinics in the northeastern United States...
December 5, 2017: Journal of the Association of Nurses in AIDS Care: JANAC
Jörn Grensemann, Lars Eichler, Sophie Kähler, Dominik Jarczak, Marcel Simon, Hans O Pinnschmidt, Stefan Kluge
BACKGROUND: Percutaneous dilatational tracheostomy (PDT) in critically ill patients often involves bronchoscopic optical guidance. However, this procedure is not without disadvantages. Therefore, we aimed to study a recently introduced endotracheal tube-mounted camera (VivaSightTM-SL tube [VST]; ETView, Misgav, Israel) for guiding PDT. METHODS: This was a randomized controlled trial involving 46 critically ill patients who received PDT using optical guidance with a VST or with bronchoscopy...
December 29, 2017: Critical Care: the Official Journal of the Critical Care Forum
T Wunderlich, N Frey, W Kähler, M Lutz, P Radermacher, S Klapa, I Koch, F Tillmans, J Witte, A Koch
OBJECTIVE: Hyperoxia is known to influence cardiovascular and endothelial function, but it is unknown if there are differences between younger and older persons. The aim of this study was to monitor changes in myocardial diastolic function and flow-mediated dilatation (FMD) in younger and elderly volunteers, before and after exposure to relevant hyperbaric hyperoxia. METHODS: 51 male patients were separated into two groups for this study. Volunteers in Group 1 (n=28, mean age 26 ±6, "juniors") and Group 2 (n=23, mean age 53 ±9, "seniors") received standard HBO₂ protocol (240kPa oxygen)...
November 2017: Undersea & Hyperbaric Medicine: Journal of the Undersea and Hyperbaric Medical Society, Inc
William N Ha, Timothy M Nicholson, Bill Kahler, Laurence J Walsh
This study explored an alternative approach using rheology to assess setting time. The following cements were tested: ProRoot® MTA (Dentsply, Tulsa, OK, USA), Biodentine® (Septodont, Saint Maur des Fosses, France), Fuji VII®, FujiVII® EP, and Fuji IX® (from GC Corporation, Tokyo, Japan), RealSeal SE™ Sealer (SybronEndo, Amersfoort, The Netherlands), AH 26® and AH Plus (both from Dentsply DeTrey, Konstanz, Germany). Freshly mixed cements were placed into a strain-controlled rheometer (1 rad·s-1 with an applied strain of 0...
December 20, 2017: Materials
Shirley Yen, Megan L Ranney, Katherine M Tezanos, Adam Chuong, Christopher W Kahler, Joel B Solomon, Anthony Spirito
"Skills to Enhance Positivity" (STEP) is a two-part positive affect program designed to decrease recurrent suicidal behavior in adolescents hospitalized due to suicide risk. Here, we describe the initial pilot phase in which the intervention was developed and modified based on a sample of 20 adolescent participants, aged 12 to 18 years old ( Mage = 15.9, SD = 1.5). STEP consisted of an in-person phase (four sessions) and a remote delivery phase (text messaging and phone calls). The inpatient sessions focused on psychoeducation of positive affect, mindfulness meditation, gratitude, and savoring...
December 1, 2017: Behavior Modification
Sowmya Shetty, Sam L Kahler, Bill Kahler
The aim of this review was to identify and analyse all studies related to the effects of alkaline materials used in dentistry on roots of teeth. The first part of the review focused on mechanical property alterations of root dentine due to sodium hypochlorite (SH) used as an irrigant solution based on MeSH (Medical Subject Heading) terms from a previous study by Pascon et al in 2009. The second part reviewed literature on calcium hydroxide (CH), mineral trioxide aggregate (MTA) and other alkaline materials used as root canal dressings or filling materials...
December 10, 2017: Materials
Mats Brännström, Pernilla Dahm Kähler, Robert Greite, Johan Mölne, César Díaz-García, Stefan G Tullius
No abstract text is available yet for this article.
November 28, 2017: Transplantation
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