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https://www.readbyqxmd.com/read/29791942/emerging-viral-infections-and-their-impact-on-the-global-burden-of-neurological-disease
#1
Laura S Muñoz, Maria A Garcia, Eliza Gordon-Lipkin, Beatriz Parra, Carlos A Pardo
Emerging viral infections of the nervous system represent a major global public health concern in the 21st century. They are caused primarily by RNA viruses and are mostly associated with acute or subacute encephalitis. The spectrum of associated central or peripheral nervous system disorders is broad, and results either from a direct viral effect or due to the host immune responses against the infection. Emerging viral infections impose substantial neurological morbidity and mortality, particularly in low- and middle-income regions...
April 2018: Seminars in Neurology
https://www.readbyqxmd.com/read/29791037/discrepancies-between-retrospective-and-actual-self-reports-of-peer-victimization-six-years-earlier
#2
Adrienne Nishina, Luis Armando Parra
Retrospective peer victimization reports may be inaccurate. With an ethnically and sexually diverse sample, this study compared adolescents' self-reported peer victimization in 6th grade to their own retrospective reports of 6th-grade victimization when they were in the 12th grade, controlling for past and current adjustment. Overall, 12th graders' retrospective victimization reports correlated with their own earlier 6th-grade self-reports and there was a general tendency to underreport retrospectively. Underreporters were distinguished by worse past 6th-grade adjustment, whereas overreporters were distinguished by worse current (12th-grade) adjustment...
May 23, 2018: Journal of Research on Adolescence: the Official Journal of the Society for Research on Adolescence
https://www.readbyqxmd.com/read/29788045/molecular-epidemiology-of-candida-auris-in-colombia-reveals-a-highly-related-country-wide-colonization-with-regional-patterns-in-amphotericin-b-resistance
#3
Patricia Escandón, Nancy A Chow, Diego H Caceres, Lalitha Gade, Elizabeth L Berkow, Paige Armstrong, Sandra Rivera, Elizabeth Misas, Carolina Duarte, Heather Moulton-Meissner, Rory M Welsh, Claudia Parra, Luz Angela Pescador, Nohora Villalobos, Soraya Salcedo, Indira Berrio, Carmen Varón, Andrés Espinosa-Bode, Shawn R Lockhart, Brendan R Jackson, Anastasia P Litvintseva, Mauricio Beltran, Tom M Chiller
Background: Candida auris is a multidrug-resistant yeast associated with hospital outbreaks worldwide. During 2015-2016, multiple outbreaks were reported in Colombia. We aimed to understand the extent of contamination in healthcare settings and to characterize the molecular epidemiology of C. auris in Colombia. Methods: We sampled patients, patient contacts, healthcare workers, and the environment in four hospitals with recent C. auris outbreaks. Using standardized protocols, people were swabbed at different body sites...
May 16, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29787637/fear-based-niche-shifts-in-neotropical-birds
#4
Ari E Martínez, Eliseo Parra, Oliver Muellerklein, Vance T Vredenburg
Predation is a strong ecological force that shapes animal communities through natural selection. Recent studies have shown the cascading effects of predation risk on ecosystems through changes in prey behavior. Minimizing predation risk may explain why multiple prey species associate together in space and time. For example, mixed-species flocks that have been widely documented from forest systems, often include birds that eavesdrop on sentinel species (alarm calling heterospecifics). Sentinel species may be pivotal in (1) allowing flocking species to forage in open areas within forests that otherwise incur high predation risk, and (2) influencing flock occurrence (the amount of time species spend with a flock)...
May 22, 2018: Ecology
https://www.readbyqxmd.com/read/29787536/a-meta-analysis-of-the-incidence-of-complications-associated-with-groin-access-after-the-use-of-resuscitative-endovascular-balloon-occlusion-of-the-aorta-in-trauma-patients
#5
Ramiro Manzano-Nunez, Claudia P Orlas, Juan P Herrera-Escobar, Samuel Galvagno, Joseph DuBose, Juan J Melendez, Jose J Serna, Alexander Salcedo, Camilo A Peña, Edison Angamarca, Tal Horer, Camilo J Salazar, Valeria Lopez-Castilla, Juan Ruiz-Yucuma, Fernando Rodriguez, Michael W Parra, Carlos A Ordoñez
BACKGROUND: Serious complications related to groin access have been reported with the use of resuscitative endovascular balloon occlusion of the aorta (REBOA). We performed a systematic review and meta-analysis to estimate the incidence of complications related to groin access from the use of REBOA in adult trauma patients. METHODS: We identified articles in MEDLINE and EMBASE. We reviewed all studies that involved adult trauma patients that underwent the placement of a REBOA and included only those that reported the incidence of complications related to groin access...
May 21, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29786141/an-inhibitory-antibody-targeting-carbonic-anhydrase-xii-abrogates-chemoresistance-and-significantly-reduces-lung-metastases-in-an-orthotopic-breast-cancer-model-in-vivo
#6
Bettina von Neubeck, Gabor Gondi, Chiara Riganti, Chenchen Pan, Arnaldo Parra Damas, Hagen Scherb, Ali Ertürk, Reinhard Zeidler
Carbonic Anhydrase XII (CAXII) is a membrane-tethered ectoenzyme involved in intracellular pH regulation and overexpressed across various types of human cancer. Because CAXII inhibition shows antitumour activity in vitro, it is thought that the enzyme is mandatory for maximum tumour growth, above all under hypoxic conditions. Recently, it has been shown that CAXII is co-expressed along with the P-glycoprotein (P-GP) on many tumour cells and that both proteins physically interact. Of interest, blocking CAXII activity also decreases P-GP activity in cancer cells both in vitro and in vivo...
May 22, 2018: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29779879/the-xmap215-ortholog-alp14-promotes-microtubule-nucleation-in-fission-yeast
#7
Ignacio Flor-Parra, Ana Belén Iglesias-Romero, Fred Chang
The organization and number of microtubules (MTs) in a cell depend on the proper regulation of MT nucleation. Currently, the mechanism of nucleation is the most poorly understood aspect of MT dynamics. XMAP215/chTOG/Alp14/Stu2 proteins are MT polymerases that stimulate MT polymerization at MT plus ends by binding and releasing tubulin dimers. Although these proteins also localize to MT organizing centers and have nucleating activity in vitro, it is not yet clear whether these proteins participate in MT nucleation in vivo...
May 10, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29773717/stk11-lkb1-mutations-and-pd-1-inhibitor-resistance-in-kras-mutant-lung-adenocarcinoma
#8
Ferdinandos Skoulidis, Michael E Goldberg, Danielle M Greenawalt, Matthew D Hellmann, Mark M Awad, Justin F Gainor, Alexa B Schrock, Ryan J Hartmaier, Sally E Trabucco, Laurie Gay, Siraj M Ali, Julia A Elvin, Gaurav Singal, Jeffrey S Ross, David Fabrizio, Peter M Szabo, Han Chang, Ariella Sasson, Sujaya Srinivasan, Stefan Kirov, Joseph Szustakowski, Patrik Vitazka, Robin Edwards, Jose A Bufill, Neelesh Sharma, Sai-Hong I Ou, Nir Peled, David R Spigel, Hira Rizvi, Elizabeth Jimenez Aguilar, Brett W Carter, Jeremy Erasmus, Darragh F Halpenny, Andrew J Plodkowski, Niamh M Long, Mizuki Nishino, Warren L Denning, Ana Galan-Cobo, Haifa Hamdi, Taghreed Hirz, Pan Tong, Jing Wang, Jaime Rodriguez-Canales, Pamela A Villalobos, Edwin R Parra, Neda Kalhor, Lynette M Sholl, Jennifer L Sauter, Achim A Jungbluth, Mari Mino-Kenudson, Roxana Azimi, Yasir Y Elamin, Jianjun Zhang, Giulia C Leonardi, Fei Jiang, Kwok-Kin Wong, J Jack Lee, Vassiliki A Papadimitrakopoulou, Ignacio I Wistuba, Vincent A Miller, Garrett M Frampton, Jedd D Wolchok, Alice T Shaw, Pasi A Jänne, Philip J Stephens, Charles M Rudin, William J Geese, Lee A Albacker, John V Heymach
KRAS is the most common oncogenic driver in lung adenocarcinoma (LUAC). We previously reported that STK11/LKB1 (KL) or TP53 (KP) co-mutations define distinct subgroups of KRAS-mutant LUAC. Here, we examine the efficacy of PD-1 inhibitors in these subgroups. Objective response rates to PD-1 blockade differed significantly among KL (7.4%), KP (35.7%), and K-only (28.6%) subgroups (P<0.001) in the SU2C cohort (174 patients) with KRAS-mutant LUAC and in patients treated with nivolumab in the CheckMate-057 phase 3 trial (0% vs 57...
May 17, 2018: Cancer Discovery
https://www.readbyqxmd.com/read/29773406/dynamics-of-helicobacter-pylori-infection-in-infants-during-the-first-six-months-of-life
#9
José S Merino, Liliana Araneda, Paulina Lincoñir-Campos, Cristian Parra, Katia Sáez, Apolinaria García
INTRODUCTION: Mainly due to the high percentage of infection and the ineffectiveness of treatments, Helicobacter pylori is a global health problem. Knowing the age at acquisition is key to preventing the infection. PATIENTS: Sixty-seven mothers and their respective children participated. To evaluate the presence of H. pylori, the faeces of the mother and her child were analysed using the HpSA antigen test. RESULTS: 71.6% (48/67) of pregnant mothers were positive for H...
May 14, 2018: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/29770134/comparative-immune-and-stress-related-transcript-response-induced-by-air-exposure-and-vibrio-anguillarum-bacterin-in-rainbow-trout-oncorhynchus-mykiss-and-gilthead-seabream-sparus-aurata-mucosal-surfaces
#10
Ali Reza Khansari, Joan Carles Balasch, Eva Vallejos-Vidal, David Parra, Felipe E Reyes-López, Lluís Tort
Fish have to face various environmental challenges that may compromise the efficacy of the immune response in mucosal surfaces. Since the effect of acute stress on mucosal barriers in fish has still not been fully elucidated, we aimed to compare the short-term mucosal stress and immune transcriptomic responses in a freshwater (rainbow trout, Oncorhynchus mykiss ) and a marine fish (gilthead seabream, Sparus aurata ) to bacterial immersion ( Vibrio anguillarum bacterin vaccine) and air exposure stress in skin, gills, and intestine...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29769794/social-interactions-predict-genetic-diversification-an-experimental-manipulation-in-shorebirds
#11
Charles Cunningham, Jorge E Parra, Lucy Coals, Marcela Beltrán, Sama Zefania, Tamás Székely
Mating strategy and social behavior influence gene flow and hence affect levels of genetic differentiation and potentially speciation. Previous genetic analyses of closely related plovers Charadrius spp. found strikingly different population genetic structure in Madagascar: Kittlitz's plovers are spatially homogenous whereas white-fronted plovers have well segregated and geographically distinct populations. Here, we test the hypotheses that Kittlitz's plovers are spatially interconnected and have extensive social interactions that facilitate gene flow, whereas white-fronted plovers are spatially discrete and have limited social interactions...
May 2018: Behavioral Ecology: Official Journal of the International Society for Behavioral Ecology
https://www.readbyqxmd.com/read/29769702/fine-mapping-of-98-obesity-loci-in-mexican-children
#12
Hsin Yen Liu, Akram Alyass, Arkan Abadi, Jesus Peralta-Romero, Fernando Suarez, Jaime Gomez-Zamudio, Astride Audirac, Esteban J Parra, Miguel Cruz, David Meyre
BACKGROUND/OBJECTIVES: Mexico has one of the highest prevalence of childhood obesity in the world. Genome-wide association studies (GWAS) for obesity have identified multiple single-nucleotide polymorphisms (SNPs) in populations of European, East Asian, and African descent. The contribution of these loci to obesity in Mexican children is unclear. We assessed the transferability of 98 obesity loci in Mexican children and fine-mapped the association signals. SUBJECTS/METHODS: The study included 405 and 390 Mexican children with normal weight and obesity...
March 12, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29765646/towards-the-fluorogenic-detection-of-peroxide-explosives-through-host-guest-chemistry
#13
Estefanía Almenar, Ana M Costero, Pablo Gaviña, Salvador Gil, Margarita Parra
Two dansyl-modified β-cyclodextrin derivatives ( 1 and 2 ) have been synthesized as host-guest sensory systems for the direct fluorescent detection of the peroxide explosives diacetone diperoxide (DADP) and triacetone triperoxide (TATP) in aqueous media. The sensing is based on the displacement of the dansyl moiety from the cavity of the cyclodextrin by the peroxide guest resulting in a decrease of the intensity of the fluorescence of the dye. Both systems showed similar fluorescent responses and were more sensitive towards TATP than DADP...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29765284/influence-of-serum-leptin-levels-and-q223r-leptin-receptor-polymorphism-on-clinical-characteristic-of-patients-with-rheumatoid-arthritis-from-western-mexico
#14
Luis I Angel-Chávez, Elizabeth Ruelas-Cinco, Jorge Hernández-Bello, Elena Castro, Mirna Vázquez-Villamar, Isela Parra-Rojas, L Michele Brennan-Bourdon, Salvador Muñoz-Barrios, Celia Guerrero-Velázquez, José Francisco Muñoz-Valle
Objective: The aim of the present study was to evaluate the possible association between the Q223R Leptin receptor (LEPR) polymorphism (A>G; rs1137101) and leptin levels in patients with rheumatoid arthritis (RA) from Western Mexico. Methods: A cross-sectional study was performed with 70 RA patients and 74 controls subject (CS). Disease activity was evaluated using DAS28 score, the Q223R LEPR polymorphism was determined by the Polymerase Chain Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) and serum leptin levels, erythrocyte sedimentation rate (ESR), C-reactive protein (CRP) and rheumatoid factor (RF) were quantified...
April 2018: EJIFCC
https://www.readbyqxmd.com/read/29758631/bifurcation-structure-of-localized-states-in-the-lugiato-lefever-equation-with-anomalous-dispersion
#15
P Parra-Rivas, D Gomila, L Gelens, E Knobloch
The origin, stability, and bifurcation structure of different types of bright localized structures described by the Lugiato-Lefever equation are studied. This mean field model describes the nonlinear dynamics of light circulating in fiber cavities and microresonators. In the case of anomalous group velocity dispersion and low values of the intracavity phase detuning these bright states are organized in a homoclinic snaking bifurcation structure. We describe how this bifurcation structure is destroyed when the detuning is increased across a critical value, and determine how a bifurcation structure known as foliated snaking emerges...
April 2018: Physical Review. E
https://www.readbyqxmd.com/read/29754710/attributional-biases-in-psychiatric-patients-a-religious-and-a-control-group-in-the-assessment-of-a-hallucinatory-experience-the-white-christmas-test
#16
Alejandro Parra, Gianina Maschi
The aim of this study was to evaluate the auditory hallucinatory experience in a clinical sample of patients with psychiatric symptoms (e.g. Schizophrenia), a religious group (eg. Christians) and a "control" group (with no mental disorder and non-religious). The sample consisted of individuals of both sexes. The patient sample was recruited in two psychiatric hospitals of Buenos Aires City, the religious from an evangelical cult, and people with no religious beliefs or previous psychiatric symptoms (control group)...
April 2018: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/29753956/smart-gated-magnetic-silica-mesoporous-particles-for-targeted-colon-drug-delivery-new-approaches-for-inflammatory-bowel-diseases-treatment
#17
Adrián H Teruel, Édgar Pérez-Esteve, Isabel González-Álvarez, Marta González-Álvarez, Ana M Costero, Daniel Ferri, Margarita Parra, Pablo Gaviña, Virginia Merino, Ramón Martínez-Mañez, Félix Sancenón
Magnetic mesoporous silica microparticles were loaded with safranin O (S1) and with hydrocortisone (S2) and the outer surface functionalized with a bulky azo derivative bearing urea moieties. Aqueous suspensions of both solids at pH 7.4 showed negligible payload release whereas a marked delivery was observed in the presence of sodium dithionite due to the rupture of the azo bonds. Besides, a moderate cargo release was observed at acidic pH due to the hydrolysis of the urea bonds that linked the azo derivative onto the external surface of the inorganic scaffolds...
May 10, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29752387/transfection-of-capsaspora-owczarzaki-a-close-unicellular-relative-of-animals
#18
Helena Parra-Acero, Núria Ros-Rocher, Alberto Perez-Posada, Aleksandra Kożyczkowska, Núria Sánchez-Pons, Azusa Nakata, Hiroshi Suga, Sebastián R Najle, Iñaki Ruiz-Trillo
How animals emerged from their unicellular ancestor remains a major evolutionary question. New genome data from the closest unicellular relatives of animals has provided important insights into animal origins. We know that the unicellular ancestor of animals had an unexpectedly complex genetic repertoire, including many genes key to animal development and multicellularity. Thus, assessing the function of these genes among unicellular relatives of animals is key to understand how were they co-opted at the onset of Metazoa...
May 11, 2018: Development
https://www.readbyqxmd.com/read/29751526/molecular-responses-to-the-zika-virus-in-mosquitoes
#19
REVIEW
Catalina Alfonso-Parra, Frank W Avila
The Zika virus (ZIKV), originally discovered in 1947, did not become a major concern until the virus swept across the Pacific and into the Americas in the last decade, bringing with it news of neurological complications and birth defects in ZIKV affected areas. This prompted researchers to dissect the molecular interactions between ZIKV and the mosquito vector in an attempt to better understand not only the changes that occur upon infection, but to also identify molecules that may potentially enhance or suppress a mosquito&rsquo;s ability to become infected and/or transmit the virus...
May 3, 2018: Pathogens
https://www.readbyqxmd.com/read/29746875/clinical-trichoscopic-and-histopathologic-characteristics-of-patients-with-alopecia-and-hypothyroidism-an-observational-study
#20
Sergio Enrique Leal-Osuna, Diana Emma Becerril-Parra, Fátima Tinoco-Fragoso, Ana Beatriz García-Gil, María Elisa Vega-Memije, Lorena Lammoglia-Ordiales
No abstract text is available yet for this article.
May 7, 2018: Journal of the American Academy of Dermatology
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