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Katrin Feldbauer, Jan Schlegel, Juliane Weissbecker, Frank Sauer, Phillip G Wood, Ernst Bamberg, Ulrich Terpitz
An optochemokine tandem was developed to control the release of calcium from endosomes into the cytosol by light and to analyze the internalization kinetics of G-protein coupled receptors (GPCRs) by electrophysiology. A previously constructed rhodopsin tandem was re-engineered to combine the light-gated Ca2+-permeable cation channel Channelrhodopsin-2(L132C), CatCh, with the chemokine receptor CXCR4 in a functional tandem protein tCXCR4/CatCh. The GPCR was used as a shuttle protein to displace CatCh from the plasma membrane into intracellular areas...
2016: PloS One
Maarten van Dijke, Stein J Janssen, Thomas D Cha, Kirkham B Wood, Lawrence F Borges, Mitchel B Harris, Christopher M Bono, Joseph H Schwab
STUDY DESIGN: This is a retrospective study. OBJECTIVE: To compare (1) recurrence of radiculopathy and (2) back pain after decompression with and without fusion for patients with a symptomatic synovial cyst. BACKGROUND: Previous work described favorable outcomes following cyst excision with and without fusion. Because of the association of facet cysts with spinal instability it is hypothesized that a decompression with fusion will lead to better outcomes...
October 6, 2016: Clinical Spine Surgery
Patricia J Simner, Gail L Woods, Nancy L Wengenack
The immunocompromised host is at increased risk of Mycobacterium tuberculosis complex and nontuberculous mycobacteria infection. Although Mycobacterium tuberculosis complex is a significant mycobacterial pathogen, nontuberculous mycobacteria causes substantial disease in those with suppressed immune responses. Mycobacterial infections can cause significant morbidity and mortality in this patient population, and rapid identification and susceptibility testing of the mycobacterial species is paramount to patient management and outcomes...
August 2016: Microbiology Spectrum
Ya-Hui Chiu, Edward Schwarz, Dongge Li, Yuexin Xu, Tzong-Ren Sheu, Jinbo Li, Karen L de Mesy Bentley, Changyong Feng, Baoli Wang, Jhih-Cheng Wang, Liz Albertorio-Saez, Ronald Wood, Minsoo Kim, Wensheng Wang, Christopher T Ritchlin
DC-STAMP is a multi-pass transmembrane protein essential for cell-cell fusion of osteoclast precursors during osteoclast (OC) development. DC-STAMP-/- mice have mild osteopetrosis and form mononuclear cells with limited resorption capacity. The identification of an Immunoreceptor Tyrosine-based Inhibitory Motif (ITIM) on the cytoplasmic tail of DC-STAMP suggested a potential signaling function but the absence of known DC-STAMP ligand has hindered examination of downstream signaling pathways. To address this problem, we engineered a light-activatable DC-STAMP chimeric molecule in which light exposure mimics ligand engagement that can be traced by downstream Ca2+ signaling...
October 10, 2016: Journal of Cellular Physiology
C L Campbell, C T A Brown, K Wood, H Moseley
Most existing theoretical models of photodynamic therapy (PDT) assume a uniform initial distribution of the photosensitive molecule, Protoporphyrin IX (PpIX). This is an adequate assumption when the prodrug is systematically administered; however for topical PDT this is no longer a valid assumption. Topical application and subsequent diffusion of the prodrug results in an inhomogeneous distribution of PpIX, especially after short incubation times, prior to light illumination. In this work a theoretical simulation of PDT where the PpIX distribution depends on the incubation time and the treatment modality is described...
October 7, 2016: Physics in Medicine and Biology
Satoshi Sugita, Leland L Fleming, Caleb Wood, Sydney K Vaughan, Matheus P S M Gomes, Wallace Camargo, Ligia A Naves, Vania F Prado, Marco A M Prado, Cristina Guatimosim, Gregorio Valdez
BACKGROUND: Cholinergic dysfunction occurs during aging and in a variety of diseases, including amyotrophic lateral sclerosis (ALS). However, it remains unknown whether changes in cholinergic transmission contributes to age- and disease-related degeneration of the motor system. Here we investigated the effect of moderately increasing levels of synaptic acetylcholine (ACh) on the neuromuscular junction (NMJ), muscle fibers, and motor neurons during development and aging and in a mouse model for amyotrophic lateral sclerosis (ALS)...
2016: Skeletal Muscle
Kristen A Woodberry, Larry J Seidman, Caitlin Bryant, Jean Addington, Carrie E Bearden, Kristin S Cadenhead, Tyrone D Cannon, Barbara A Cornblatt, Thomas H McGlashan, Daniel H Mathalon, Diana O Perkins, Ming T Tsuang, Elaine F Walker, Scott W Woods
Early intervention for psychotic disorders, a growing international priority, typically targets help-seeking populations with emerging psychotic ("positive") symptoms. We assessed the nature of and degree to which treatment of individuals at high risk for psychosis preceded or followed the onset of positive symptoms. The North American Prodrome Longitudinal Study-2 collected psychosocial treatment histories for 745 (98%) of 764 high-risk participants (M age = 18.9, 57% male, 57.5% Caucasian, 19.1% Hispanic) recruited from 8 North American communities...
October 5, 2016: Journal of Clinical Child and Adolescent Psychology
David S Oderberg
I explore the increasingly important issue of cooperation in immoral actions, particularly in connection with healthcare. Conscientious objection, especially as pertains to religious freedom in healthcare, has become a pressing issue in the light of the US Supreme Court judgement in Hobby Lobby Section 'Moral evaluation using the basic principles of cooperation' outlines a theory of cooperation inspired by Catholic moral theologians such as those cited by the court. The theory has independent plausibility and is at least worthy of serious consideration-in part because it is an instance of double-effect reasoning, which is also independently plausible despite its association with moral theology...
October 3, 2016: Journal of Medical Ethics
Sarah P Loughran, Md Shahriar Al Hossain, Alan Bentvelzen, Mark Elwood, John Finnie, Joseph Horvat, Steve Iskra, Elena P Ivanova, Jim Manavis, Chathuranga Keerawella Mudiyanselage, Alireza Lajevardipour, Boris Martinac, Robert McIntosh, Raymond McKenzie, Mislav Mustapic, Yoshitaka Nakayama, Elena Pirogova, M Harunur Rashid, Nigel A Taylor, Nevena Todorova, Peter M Wiedemann, Robert Vink, Andrew Wood, Irene Yarovsky, Rodney J Croft
Mobile phone subscriptions continue to increase across the world, with the electromagnetic fields (EMF) emitted by these devices, as well as by related technologies such as Wi-Fi and smart meters, now ubiquitous. This increase in use and consequent exposure to mobile communication (MC)-related EMF has led to concern about possible health effects that could arise from this exposure. Although much research has been conducted since the introduction of these technologies, uncertainty about the impact on health remains...
2016: International Journal of Environmental Research and Public Health
R Paul Scofield, Kieren J Mitchell, Jamie R Wood, Vanesa L De Pietri, Scott Jarvie, Bastien Llamas, Alan Cooper
The relationships of the extinct New Zealand ravens (Corvus spp.) are poorly understood. We sequenced the mitogenomes of the two currently recognised species and found they were sister-taxa to a clade comprising the Australian raven, little raven, and forest raven (C.coronoides, C. mellori and C. tasmanicus respectively). The divergence between the New Zealand ravens and Australian raven clade occurred in the latest Pliocene, which coincides with the onset of glacial deforestation. We also found that the divergence between the two putative New Zealand species C...
September 24, 2016: Molecular Phylogenetics and Evolution
Tomomi Tani, Michael Shribak, Rudolf Oldenbourg
In 1948, Shinya Inoué arrived in the United States for graduate studies at Princeton. A year later he came to Woods Hole, starting a long tradition of summer research at the Marine Biological Laboratory (MBL), which quickly became Inoué's scientific home. Primed by his Japanese mentor, Katsuma Dan, Inoué followed Dan's mantra to work with healthy, living cells, on a fundamental problem (mitosis), with a unique tool set that he refined for precise and quantitative observations (polarized light microscopy), and a fresh and brilliant mind that was unafraid of challenging current dogma...
August 2016: Biological Bulletin
Timothy R Baker, Dilys M Vela Díaz, Victor Chama Moscoso, Gilberto Navarro, Abel Monteagudo, Ruy Pinto, Katia Cangani, Nikolaos M Fyllas, Gabriela Lopez Gonzalez, William F Laurance, Simon L Lewis, Jonathan Lloyd, Hans Ter Steege, John W Terborgh, Oliver L Phillips
Understanding the resilience of moist tropical forests to treefall disturbance events is important for understanding the mechanisms that underlie species coexistence and for predicting the future composition of these ecosystems. Here, we test whether variation in the functional composition of Amazonian forests determines their resilience to disturbance.We studied the legacy of natural treefall disturbance events in four forests across Amazonia that differ substantially in functional composition. We compared the composition and diversity of all free-standing woody stems 2-10 cm diameter in previously disturbed and undisturbed 20 × 20 m subplots within 55, one-hectare, long-term forest inventory plots...
March 2016: Journal of Ecology
Thirthar P Vetrichevvel, Sean M Randall, Mark W Fear, Fiona M Wood, James H Boyd, Janine M Duke
OBJECTIVE: To investigate if children and adults who are hospitalised for a burn injury have increased long-term hospital use for nervous system diseases. DESIGN: A population-based retrospective cohort study using linked administrative health data from the Western Australian Data Linkage System. PARTICIPANTS: Records of 30 997 persons hospitalised for a first burn injury in Western Australia during the period 1980-2012, and 123 399 persons who were age and gender frequency matched with no injury admissions randomly selected from Western Australia's birth registrations and electoral roll...
2016: BMJ Open
Naama Karu, Richard Wilson, Rodrigo Hamede, Menna Jones, Gregory M Woods, Emily F Hilder, Robert A Shellie
Devil facial tumor disease (DFTD) is a transmissible cancer threatening Tasmanian devils (Sarcophilus harrisii) with extinction. There is no preclinical test available for DFTD, and thus our aim was to find biomarkers for DFTD by metabolic fingerprinting. Seventy serum samples from wild Tasmanian devils (35 controls, 35 with tumors) were analyzed by liquid chromatography-high-resolution mass spectrometry. Features were selected by multivariate models (PLS/DA, random forests) comparing age-matched training set (n = 20 × 2) and further complying with fold-change threshold (≥1...
October 7, 2016: Journal of Proteome Research
Christopher H Lusk, Daniel C Laughlin
Forest ecologists researching the functional basis of tree regeneration patterns and species coexistence often attempt to correlate traits with light-gradient partitioning. However, an exclusive focus on light can overlook other important drivers of forest dynamics. We measured light, temperatures, humidity and sapling densities in each of four phases of a forest dynamic mosaic in New Zealand: shaded understoreys, tree-fall gaps, treefern groves and clearings. We then measured leaf, wood and seed traits, as potential predictors of species' regeneration patterns...
September 2, 2016: New Phytologist
Elisa Cerutti, Laura Spagnoli, Nadezhda Araujo, Daniele Gibelli, Debora Mazzarelli, Cristina Cattaneo
One of the main issues in forensic anthropology consists of the identification of signs of trauma in skeletal remains, including sharp-force injuries. So far, several studies have been performed to assess differences between injuries caused by different instruments, not, however, through light microscopy.In this study, 152 sharp-force injuries were performed by 5 different tools through 2 different orientations on 2 humeral diaphyses and were analyzed by stereo and light microscopy to assess possible morphological differences...
August 31, 2016: American Journal of Forensic Medicine and Pathology
Iris Beatriz Vega Erramuspe, Elnaz Fazeli, Tuomas Näreoja, Jani Trygg, Pekka Hänninen, Thomas Heinze, Pedro Fardim
Biocatalytic pulp fibers were prepared using surface functionalization of bleached kraft pulp with amino groups (F) and further immobilization of a cross-linked glucose oxidase (G*) from Aspergillus niger. The cross-linked enzymes (G*) were characterized using X-ray spectroscopy, Fourier transform infrared spectroscopy, dynamic scanning calorimetry, and dynamic light scattering. According to standard assays, the G* content on the resulting fibers (FG*) was of 11 mg/g of fiber, and enzyme activity was of 215 U/g...
October 10, 2016: Biomacromolecules
M G Aartsen, K Abraham, M Ackermann, J Adams, J A Aguilar, M Ahlers, M Ahrens, D Altmann, K Andeen, T Anderson, I Ansseau, G Anton, M Archinger, C Argüelles, T C Arlen, J Auffenberg, S Axani, X Bai, S W Barwick, V Baum, R Bay, J J Beatty, J Becker Tjus, K-H Becker, S BenZvi, P Berghaus, D Berley, E Bernardini, A Bernhard, D Z Besson, G Binder, D Bindig, E Blaufuss, S Blot, D J Boersma, C Bohm, M Börner, F Bos, D Bose, S Böser, O Botner, J Braun, L Brayeur, H-P Bretz, A Burgman, J Casey, M Casier, E Cheung, D Chirkin, A Christov, K Clark, L Classen, S Coenders, G H Collin, J M Conrad, D F Cowen, A H Cruz Silva, J Daughhetee, J C Davis, M Day, J P A M de André, C De Clercq, E Del Pino Rosendo, H Dembinski, S De Ridder, P Desiati, K D de Vries, G de Wasseige, M de With, T DeYoung, J C Díaz-Vélez, V di Lorenzo, H Dujmovic, J P Dumm, M Dunkman, B Eberhardt, T Ehrhardt, B Eichmann, S Euler, P A Evenson, S Fahey, A R Fazely, J Feintzeig, J Felde, K Filimonov, C Finley, S Flis, C-C Fösig, T Fuchs, T K Gaisser, R Gaior, J Gallagher, L Gerhardt, K Ghorbani, W Giang, L Gladstone, T Glüsenkamp, A Goldschmidt, G Golup, J G Gonzalez, D Góra, D Grant, Z Griffith, A Haj Ismail, A Hallgren, F Halzen, E Hansen, K Hanson, D Hebecker, D Heereman, K Helbing, R Hellauer, S Hickford, J Hignight, G C Hill, K D Hoffman, R Hoffmann, K Holzapfel, A Homeier, K Hoshina, F Huang, M Huber, W Huelsnitz, K Hultqvist, S In, A Ishihara, E Jacobi, G S Japaridze, M Jeong, K Jero, B J P Jones, M Jurkovic, A Kappes, T Karg, A Karle, U Katz, M Kauer, A Keivani, J L Kelley, A Kheirandish, M Kim, T Kintscher, J Kiryluk, T Kittler, S R Klein, G Kohnen, R Koirala, H Kolanoski, L Köpke, C Kopper, S Kopper, D J Koskinen, M Kowalski, K Krings, M Kroll, G Krückl, C Krüger, J Kunnen, S Kunwar, N Kurahashi, T Kuwabara, M Labare, J L Lanfranchi, M J Larson, D Lennarz, M Lesiak-Bzdak, M Leuermann, L Lu, J Lünemann, J Madsen, G Maggi, K B M Mahn, S Mancina, M Mandelartz, R Maruyama, K Mase, R Maunu, F McNally, K Meagher, M Medici, M Meier, A Meli, T Menne, G Merino, T Meures, S Miarecki, E Middell, L Mohrmann, T Montaruli, M Moulai, R Nahnhauer, U Naumann, G Neer, H Niederhausen, S C Nowicki, D R Nygren, A Obertacke Pollmann, A Olivas, A Omairat, A O'Murchadha, T Palczewski, H Pandya, D V Pankova, J A Pepper, C Pérez de Los Heros, C Pfendner, D Pieloth, E Pinat, J Posselt, P B Price, G T Przybylski, M Quinnan, C Raab, M Rameez, K Rawlins, M Relich, E Resconi, W Rhode, M Richman, B Riedel, S Robertson, C Rott, T Ruhe, D Ryckbosch, D Rysewyk, L Sabbatini, J Salvado, S E Sanchez Herrera, A Sandrock, J Sandroos, S Sarkar, K Satalecka, P Schlunder, T Schmidt, S Schöneberg, A Schönwald, D Seckel, S Seunarine, D Soldin, M Song, G M Spiczak, C Spiering, M Stamatikos, T Stanev, A Stasik, A Steuer, T Stezelberger, R G Stokstad, A Stößl, R Ström, N L Strotjohann, G W Sullivan, M Sutherland, H Taavola, I Taboada, J Tatar, S Ter-Antonyan, A Terliuk, G Tešić, S Tilav, P A Toale, M N Tobin, S Toscano, D Tosi, M Tselengidou, A Turcati, E Unger, M Usner, S Vallecorsa, J Vandenbroucke, N van Eijndhoven, S Vanheule, M van Rossem, J van Santen, J Veenkamp, M Voge, M Vraeghe, C Walck, A Wallace, N Wandkowsky, Ch Weaver, C Wendt, S Westerhoff, B J Whelan, K Wiebe, L Wille, D R Williams, L Wills, H Wissing, M Wolf, T R Wood, E Woolsey, K Woschnagg, D L Xu, X W Xu, Y Xu, J P Yanez, G Yodh, S Yoshida, M Zoll
The IceCube neutrino telescope at the South Pole has measured the atmospheric muon neutrino spectrum as a function of zenith angle and energy in the approximate 320 GeV to 20 TeV range, to search for the oscillation signatures of light sterile neutrinos. No evidence for anomalous ν_{μ} or ν[over ¯]_{μ} disappearance is observed in either of two independently developed analyses, each using one year of atmospheric neutrino data. New exclusion limits are placed on the parameter space of the 3+1 model, in which muon antineutrinos experience a strong Mikheyev-Smirnov-Wolfenstein-resonant oscillation...
August 12, 2016: Physical Review Letters
Madeline C Weiss, Filipa L Sousa, Natalia Mrnjavac, Sinje Neukirchen, Mayo Roettger, Shijulal Nelson-Sathi, William F Martin
The concept of a last universal common ancestor of all cells (LUCA, or the progenote) is central to the study of early evolution and life's origin, yet information about how and where LUCA lived is lacking. We investigated all clusters and phylogenetic trees for 6.1 million protein coding genes from sequenced prokaryotic genomes in order to reconstruct the microbial ecology of LUCA. Among 286,514 protein clusters, we identified 355 protein families (∼0.1%) that trace to LUCA by phylogenetic criteria. Because these proteins are not universally distributed, they can shed light on LUCA's physiology...
2016: Nature Microbiology
Stefania Gilardoni, Paola Massoli, Marco Paglione, Lara Giulianelli, Claudio Carbone, Matteo Rinaldi, Stefano Decesari, Silvia Sandrini, Francesca Costabile, Gian Paolo Gobbi, Maria Chiara Pietrogrande, Marco Visentin, Fabiana Scotto, Sandro Fuzzi, Maria Cristina Facchini
The mechanisms leading to the formation of secondary organic aerosol (SOA) are an important subject of ongoing research for both air quality and climate. Recent laboratory experiments suggest that reactions taking place in the atmospheric liquid phase represent a potentially significant source of SOA mass. Here, we report direct ambient observations of SOA mass formation from processing of biomass-burning emissions in the aqueous phase. Aqueous SOA (aqSOA) formation is observed both in fog water and in wet aerosol...
September 6, 2016: Proceedings of the National Academy of Sciences of the United States of America
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