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https://www.readbyqxmd.com/read/28635996/reply-to-engelthaler-and-meyer-furthering-the-continental-drift-speciation-hypothesis-in-the-pathogenic-cryptococcus-species-complexes
#1
COMMENT
Arturo Casadevall, Joudeh B Freij, Christopher Hann-Soden, John Taylor
No abstract text is available yet for this article.
May 2017: MSphere
https://www.readbyqxmd.com/read/28597822/fungi-that-infect-humans
#2
Julia R Köhler, Bernhard Hube, Rosana Puccia, Arturo Casadevall, John R Perfect
Fungi must meet four criteria to infect humans: growth at human body temperatures, circumvention or penetration of surface barriers, lysis and absorption of tissue, and resistance to immune defenses, including elevated body temperatures. Morphogenesis between small round, detachable cells and long, connected cells is the mechanism by which fungi solve problems of locomotion around or through host barriers. Secretion of lytic enzymes, and uptake systems for the released nutrients, are necessary if a fungus is to nutritionally utilize human tissue...
June 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28549836/heterogeneity-of-tumor-and-immune-cell-pd-l1-expression-and-lymphocyte-counts-in-surgical-nsclc-samples
#3
David Casadevall, Sergi Clavé, Álvaro Taus, Max Hardy-Werbin, Pedro Rocha, Marta Lorenzo, Silvia Menéndez, Marta Salido, Joan Albanell, Lara Pijuan, Edurne Arriola
BACKGROUND: Immune-checkpoint inhibitors against programmed cell death protein 1 (PD-1)/programmed death-ligand 1 (PD-L1) have shown remarkable therapeutic activity in non-small-cell lung cancer (NSCLC). However, biomarker-based patient selection remains a challenge. Our aim was to assess the heterogeneity of various immune markers between different tumor areas of surgically resected NSCLC specimens. MATERIALS AND METHODS: We included 94 adenocarcinoma (ADC) and 50 squamous cell carcinoma (SCC) specimens...
May 4, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28483676/selective-testing-for-calreticulin-gene-mutations-in-patients-with-splanchnic-vein-thrombosis-a-prospective-cohort-study
#4
Johanne Poisson, Aurélie Plessier, Jean-Jacques Kiladjian, Fanny Turon, Bruno Cassinat, Annalisa Andreoli, Emmanuelle De Raucourt, Odile Goria, Kamal Zekrini, Christophe Bureau, Florence Lorre, Francisco Cervantes, Dolors Colomer, François Durand, Juan-Carlos Garcia-Pagan, Nicole Casadevall, Dominique-Charles Valla, Pierre-Emmanuel Rautou, Christophe Marzac
BACKGROUND AND AIMS: Myeloproliferative neoplasms (MPN) are the leading cause of splanchnic vein thrombosis (SVT). JAK2(V617F) mutation is found in 80-90% of patients with SVT and MPN. Mutations of the calreticulin (CALR) gene have also been reported. However, as their prevalence ranges from 0 to 2%, the utility of routine testing can be questioned. This study aimed at identifying a group of patients with SVT at high risk of harboring CALR mutations and thus requiring this genetic testing...
May 5, 2017: Journal of Hepatology
https://www.readbyqxmd.com/read/28450275/evolution-of-biological-agents-how-established-drugs-can-become-less-safe
#5
Nicole Casadevall, Oliver Flossmann, David Hunt
No abstract text is available yet for this article.
April 27, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28435888/continental-drift-and-speciation-of-the-cryptococcus-neoformans-and-cryptococcus-gattii-species-complexes
#6
Arturo Casadevall, Joudeh B Freij, Christopher Hann-Soden, John Taylor
Genomic analysis has placed the origins of two human-pathogenic fungi, the Cryptococcus gattii species complex and the Cryptococcus neoformans species complex, in South America and Africa, respectively. Molecular clock calculations suggest that the two species separated ~80 to 100 million years ago. This time closely approximates the breakup of the supercontinent Pangea, which gave rise to South America and Africa. On the basis of the geographic distribution of these two species complexes and the coincidence of the evolutionary divergence and Pangea breakup times, we propose that a spatial separation caused by continental drift resulted in the emergence of the C...
March 2017: MSphere
https://www.readbyqxmd.com/read/28410490/survival-of-86-690-patients-with-thyroid-cancer-a-population-based-study-in-29-european-countries-from-eurocare-5
#7
L Dal Maso, A Tavilla, F Pacini, D Serraino, B A C van Dijk, M D Chirlaque, R Capocaccia, N Larrañaga, M Colonna, D Agius, E Ardanaz, J Rubió-Casadevall, A Kowalska, S Virdone, S Mallone, H Amash, R De Angelis
BACKGROUND: Incidence rates of thyroid cancer (TC) increased in several countries during the last 30 years, while mortality rates remained unchanged, raising important questions for treatment and follow-up of TC patients. This study updates population-based estimates of relative survival (RS) after TC diagnosis in Europe by sex, country, age, period and histology. METHODS: Data from 87 cancer registries in 29 countries were extracted from the EUROCARE-5 dataset...
April 11, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28400494/uv-b-inhibits-leaf-growth-through-changes-in-growth-regulating-factors-and-gibberellin-levels
#8
Julieta Fina, Romina Casadevall, Hamada AbdElgawad, Els Prinsen, Marios N Markakis, Gerrit T S Beemster, Paula Casati
Ultraviolet-B (UV-B) radiation affects leaf growth in a wide range of species. In this work, we demonstrate that UV-B levels present in solar radiation inhibit maize (Zea mays) leaf growth without causing any other visible stress symptoms, including the accumulation of DNA damage. We conducted kinematic analyses of cell division and expansion to understand the impact of UV-B radiation on these cellular processes. Our results demonstrate that the decrease in leaf growth in UV-B-irradiated leaves is a consequence of a reduction in cell production and a shortened growth zone (GZ)...
June 2017: Plant Physiology
https://www.readbyqxmd.com/read/28377532/acknowledgment-of-invited-editors
#9
Arturo Casadevall
No abstract text is available yet for this article.
April 4, 2017: MBio
https://www.readbyqxmd.com/read/28375703/chemical-and-biological-dynamics-using-droplet-based-microfluidics
#10
Oliver J Dressler, Xavier Casadevall I Solvas, Andrew J deMello
Recent years have witnessed an increased use of droplet-based microfluidic techniques in a wide variety of chemical and biological assays. Nevertheless, obtaining dynamic data from these platforms has remained challenging, as this often requires reading the same droplets (possibly thousands of them) multiple times over a wide range of intervals (from milliseconds to hours). In this review, we introduce the elemental techniques for the formation and manipulation of microfluidic droplets, together with the most recent developments in these areas...
June 12, 2017: Annual Review of Analytical Chemistry
https://www.readbyqxmd.com/read/28362950/crisis-in-infectious-diseases-2-decades-later
#11
Arturo Casadevall
No abstract text is available yet for this article.
April 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28278283/enhanced-control-of-mycobacterium-tuberculosis-extrapulmonary-dissemination-in-mice-by-an-arabinomannan-protein-conjugate-vaccine
#12
Rafael Prados-Rosales, Leandro Carreño, Tingting Cheng, Caroline Blanc, Brian Weinrick, Adel Malek, Todd L Lowary, Andres Baena, Maju Joe, Yu Bai, Rainer Kalscheuer, Ana Batista-Gonzalez, Noemi A Saavedra, Leticia Sampedro, Julen Tomás, Juan Anguita, Shang-Cheng Hung, Ashish Tripathi, Jiayong Xu, Aharona Glatman-Freedman, Williams R Jacobs, John Chan, Steven A Porcelli, Jacqueline M Achkar, Arturo Casadevall
Currently there are a dozen or so of new vaccine candidates in clinical trials for prevention of tuberculosis (TB) and each formulation attempts to elicit protection by enhancement of cell-mediated immunity (CMI). In contrast, most approved vaccines against other bacterial pathogens are believed to mediate protection by eliciting antibody responses. However, it has been difficult to apply this formula to TB because of the difficulty in reliably eliciting protective antibodies. Here, we developed capsular polysaccharide conjugates by linking mycobacterial capsular arabinomannan (AM) to either Mtb Ag85b or B...
March 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28256187/melanin-radiation-and-energy-transduction-in-fungi
#13
Arturo Casadevall, Radames J B Cordero, Ruth Bryan, Joshua Nosanchuk, Ekaterina Dadachova
Melanin pigments are found in many diverse fungal species, where they serve a variety of functions that promote fitness and cell survival. Melanotic fungi inhabit some of the most extreme habitats on earth such as the damaged nuclear reactor at Chernobyl and the highlands of Antarctica, both of which are high-radiation environments. Melanotic fungi migrate toward radioactive sources, which appear to enhance their growth. This phenomenon, combined with the known capacities of melanin to absorb a broad spectrum of electromagnetic radiation and transduce this radiation into other forms of energy, raises the possibility that melanin also functions in harvesting such energy for biological usage...
March 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28251180/the-pathogenic-potential-of-a-microbe
#14
Arturo Casadevall
Virulence is a microbial property that is realized only in susceptible hosts. There is no absolute measurement for virulence, and consequently it is always measured relative to a standard, usually another microbe or host. This article introduces the concept of pathogenic potential, which provides a new approach to measuring the capacity of microbes for virulence. The pathogenic potential is proportional to the fraction of individuals who become symptomatic after infection with a defined inoculum and can include such attributes as mortality, communicability, and the time from infection to disease...
January 2017: MSphere
https://www.readbyqxmd.com/read/28186976/32-phosphorus-selectively-delivered-by-listeria-to-pancreatic-cancer-demonstrates-a-strong-therapeutic-effect
#15
Dinesh Chandra, Benson Chellakkan Selvanesan, Ziqiang Yuan, Steven K Libutti, Wade Koba, Amanda Beck, Kun Zhu, Arturo Casadevall, Ekaterina Dadachova, Claudia Gravekamp
Our laboratory has developed a novel delivery platform using an attenuated non-toxic and non-pathogenic bacterium Listeria monocytogenes that infects tumor cells and selectively survives and multiplies in metastases and primary tumors with help of myeloid-derived suppressor cells (MDSC) and immune suppression in the tumor microenvironment (TME). 32P was efficiently incorporated into the Listeria bacteria by starvation of the bacteria in saline, and then cultured in phosphorus-free medium complemented with 32P as a nutrient...
March 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28174305/the-mbio-american-academy-of-microbiology-submission-track-in-2017
#16
EDITORIAL
Arturo Casadevall, Thomas Shenk
No abstract text is available yet for this article.
February 7, 2017: MBio
https://www.readbyqxmd.com/read/28126951/reply-to-on-the-impact-factor-and-the-asm-editorial-policy
#17
Ferric C Fang, Arturo Casadevall
No abstract text is available yet for this article.
February 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28101535/the-case-for-adopting-the-species-complex-nomenclature-for-the-etiologic-agents-of-cryptococcosis
#18
Kyung J Kwon-Chung, John E Bennett, Brian L Wickes, Wieland Meyer, Christina A Cuomo, Kurt R Wollenburg, Tihana A Bicanic, Elizabeth Castañeda, Yun C Chang, Jianghan Chen, Massimo Cogliati, Françoise Dromer, David Ellis, Scott G Filler, Matthew C Fisher, Thomas S Harrison, Steven M Holland, Shigeru Kohno, James W Kronstad, Marcia Lazera, Stuart M Levitz, Michail S Lionakis, Robin C May, Popchai Ngamskulrongroj, Peter G Pappas, John R Perfect, Volker Rickerts, Tania C Sorrell, Thomas J Walsh, Peter R Williamson, Jianping Xu, Adrian M Zelazny, Arturo Casadevall
Cryptococcosis is a potentially lethal disease of humans/animals caused by Cryptococcus neoformans and Cryptococcus gattii. Distinction between the two species is based on phenotypic and genotypic characteristics. Recently, it was proposed that C. neoformans be divided into two species and C. gattii into five species based on a phylogenetic analysis of 115 isolates. While this proposal adds to the knowledge about the genetic diversity and population structure of cryptococcosis agents, the published genotypes of 2,606 strains have already revealed more genetic diversity than is encompassed by seven species...
January 2017: MSphere
https://www.readbyqxmd.com/read/28099836/antibodies-to-mycobacterium-tuberculosis
#19
Arturo Casadevall
No abstract text is available yet for this article.
January 19, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28066619/clinical-management-of-chronic-obstructive-pulmonary-disease-patients-with-muscle-dysfunction
#20
REVIEW
Joaquim Gea, Carme Casadevall, Sergi Pascual, Mauricio Orozco-Levi, Esther Barreiro
Muscle dysfunction is frequently observed in chronic obstructive pulmonary disease (COPD) patients, contributing to their exercise limitation and a worsening prognosis. The main factor leading to limb muscle dysfunction is deconditioning, whereas respiratory muscle dysfunction is mostly the result of pulmonary hyperinflation. However, both limb and respiratory muscles are also influenced by other negative factors, including smoking, systemic inflammation, nutritional abnormalities, exacerbations and some drugs...
November 2016: Journal of Thoracic Disease
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