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https://www.readbyqxmd.com/read/29775477/cryptococcus-neoformans-can-form-titan-like-cells-in-vitro-in-response-to-multiple-signals
#1
Nuria Trevijano-Contador, Haroldo Cesar de Oliveira, Rocío García-Rodas, Suélen Andreia Rossi, Irene Llorente, Ángel Zaballos, Guilhem Janbon, Joaquín Ariño, Óscar Zaragoza
Cryptococcus neoformans is an encapsulated pathogenic yeast that can change the size of the cells during infection. In particular, this process can occur by enlarging the size of the capsule without modifying the size of the cell body, or by increasing the diameter of the cell body, which is normally accompanied by an increase of the capsule too. This last process leads to the formation of cells of an abnormal enlarged size denominated titan cells. Previous works characterized titan cell formation during pulmonary infection but research on this topic has been hampered due to the difficulty to obtain them in vitro...
May 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29774831/urban-wild-boars-and-risk-for-zoonotic-streptococcus-suis-spain
#2
Xavier Fernández-Aguilar, Marcelo Gottschalk, Virginia Aragon, Jordi Càmara, Carmen Ardanuy, Roser Velarde, Nuria Galofré-Milà, Raquel Castillo-Contreras, Jorge R López-Olvera, Gregorio Mentaberre, Andreu Colom-Cadena, Santiago Lavín, Oscar Cabezón
Urban wild boars (Sus scrofa) from Barcelona, Spain, harbor great diversity of Streptococcus suis strains, including strains with the cps2 gene and with the same molecular profile as local human cases. The increasing trend of potential effective contacts for S. suis transmission is of public health concern.
June 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29773750/one-third-of-global-protected-land-is-under-intense-human-pressure
#3
Kendall R Jones, Oscar Venter, Richard A Fuller, James R Allan, Sean L Maxwell, Pablo Jose Negret, James E M Watson
In an era of massive biodiversity loss, the greatest conservation success story has been the growth of protected land globally. Protected areas are the primary defense against biodiversity loss, but extensive human activity within their boundaries can undermine this. Using the most comprehensive global map of human pressure, we show that 6 million square kilometers (32.8%) of protected land is under intense human pressure. For protected areas designated before the Convention on Biological Diversity was ratified in 1992, 55% have since experienced human pressure increases...
May 18, 2018: Science
https://www.readbyqxmd.com/read/29773478/preventive-strategies-for-mental-health
#4
REVIEW
Celso Arango, Covadonga M Díaz-Caneja, Patrick D McGorry, Judith Rapoport, Iris E Sommer, Jacob A Vorstman, David McDaid, Oscar Marín, Elena Serrano-Drozdowskyj, Robert Freedman, William Carpenter
Available treatment methods have shown little effect on the burden associated with mental health disorders. We review promising universal, selective, and indicated preventive mental health strategies that might reduce the incidence of mental health disorders, or shift expected trajectories to less debilitating outcomes. Some of these interventions also seem to be cost-effective. In the transition to mental illness, the cumulative lifetime effect of multiple small effect size risk factors progressively increases vulnerability to mental health disorders...
May 14, 2018: Lancet Psychiatry
https://www.readbyqxmd.com/read/29769374/better-diet-quality-relates-to-larger-brain-tissue-volumes-the-rotterdam-study
#5
Pauline H Croll, Trudy Voortman, M Arfan Ikram, Oscar H Franco, Josje D Schoufour, Daniel Bos, Meike W Vernooij
OBJECTIVE: To investigate the relation of diet quality with structural brain tissue volumes and focal vascular lesions in a dementia-free population. METHODS: From the population-based Rotterdam Study, 4,447 participants underwent dietary assessment and brain MRI scanning between 2005 and 2015. We excluded participants with an implausible energy intake, prevalent dementia, or cortical infarcts, leaving 4,213 participants for the current analysis. A diet quality score (0-14) was calculated reflecting adherence to Dutch dietary guidelines...
May 16, 2018: Neurology
https://www.readbyqxmd.com/read/29768661/unravelling-changing-interspecific-interactions-across-environmental-gradients-using-markov-random-fields
#6
Nicholas J Clark, Konstans Wells, Oscar Lindberg
Inferring interactions between co-occurring species is key to identify processes governing community assembly. Incorporating interspecific interactions in predictive models is common in ecology, yet most methods do not adequately account for indirect interactions (where an interaction between two species is masked by their shared interactions with a third) and assume interactions do not vary along environmental gradients. Markov random fields (MRF) overcome these limitations by estimating interspecific interactions, while controlling for indirect interactions, from multispecies occurrence data...
May 16, 2018: Ecology
https://www.readbyqxmd.com/read/29768632/lower-extremity-limb-salvage-with-cross-leg-pedicle-flap-cross-leg-free-flap-and-cross-leg-vascular-cable-bridge-flap
#7
Oscar J Manrique, Sarah N Bishop, Pedro Ciudad, Kian Adabi, Jorys Martinez-Jorge, Steven L Moran, Tony Huang, Aparna Vijayasekaran, Shih-Heng Chen, Hung-Chi Chen
BACKGROUND:  Lower extremity salvage following significant soft tissue loss can be complicated by lack of recipient vessel for free tissue transfer. We describe our experience in lower limb salvage for patients with no recipient vessels with the use of pedicle, free and cable bridge flaps. METHODS:  A retrospective review from 1985 to 2017 of patients undergoing lower limb salvage using a contralateral pedicle cross leg (PCL) flaps, free cross leg (FCL) flaps, or free cable bridge (FCB) flaps was conducted...
May 16, 2018: Journal of Reconstructive Microsurgery
https://www.readbyqxmd.com/read/29768414/adipose-derived-mesenchymal-stem-cells-admsc-for-the-treatment-of-secondary-progressive-multiple-sclerosis-a-triple-blinded-placebo-controlled-randomized-phase-i-ii-safety-and-feasibility-study
#8
Oscar Fernández, Guillermo Izquierdo, Victoria Fernández, Laura Leyva, Virginia Reyes, Miguel Guerrero, Antonio León, Carlos Arnaiz, Guillermo Navarro, Maria Dolores Páramo, Antonio De la Cuesta, Bernat Soria, Abdelkrim Hmadcha, David Pozo, Rafael Fernandez-Montesinos, Maria Leal, Itziar Ochotorena, Patricia Gálvez, Maria Angeles Geniz, Francisco Javier Barón, Rosario Mata, Cristina Medina, Carlos Caparrós-Escudero, Ana Cardesa, Natividad Cuende
BACKGROUND: Currently available treatments for secondary progressive multiple sclerosis(SPMS) have limited efficacy and/or safety concerns. Adipose-mesenchymal derived stem cells(AdMSCs) represent a promising option and can be readily obtained using minimally invasive procedures. PATIENTS AND METHODS: In this triple-blind, placebo-controlled study, cell samples were obtained from consenting patients by lipectomy and subsequently expanded. Patients were randomized to a single infusion of placebo, low-dose(1x106cells/kg) or high-dose(4x106cells/kg) autologous AdMSC product and followed for 12 months...
2018: PloS One
https://www.readbyqxmd.com/read/29767667/cytotaxonomic-study-of-the-chilean-endemic-complex-alstroemeria-magnifica-herb-alstroemeriaceae
#9
Carlos M Baeza, Víctor Finot, Eduardo Ruiz, Pedro Carrasco, Patricio Novoa, Marcelo Rosas, Oscar Toro-Núñez
Alstroemeria L. (Alstroemeriaceae) represents one of the most diverse genera of vascular plants in Chile. It contains approximately 54 taxa, 40 of which are endemic. The "complex" Alstroemeria magnifica is endemic to Chile, and it comprises four varieties: A. magnifica var. magenta, A. magnifica var. magnifica, A. magnifica var. sierrae, and A. magnifica var. tofoensis. It is distributed from Coquimbo to the Valparaíso Region. We analyzed karyotypes of 10 populations along its natural distribution...
May 14, 2018: Genetics and Molecular Biology
https://www.readbyqxmd.com/read/29767324/an-empiric-risk-score-to-guide-prep-targeting-among-msm-in-coastal-kenya
#10
Elizabeth Wahome, Alexander N Thiong'o, Grace Mwashigadi, Oscar Chirro, Khamisi Mohamed, Evans Gichuru, John Mwambi, Matt A Price, Susan M Graham, Eduard J Sanders
Men who have sex with men (MSM), who have heterogeneous HIV-acquisition risks are not specifically targeted in Kenyan pre-exposure prophylaxis (PrEP) guidelines. We used data from an open cohort, which followed 753 initially HIV-negative MSM participants for more than 1378.5 person-years, to develop an empiric risk score for targeting PrEP delivery. Independent predictors of incident HIV-1 infection in this cohort were an age of 18-24 years, having only male sex partners, having receptive anal intercourse, having any unprotected sex, and having group sex...
May 16, 2018: AIDS and Behavior
https://www.readbyqxmd.com/read/29766772/rivaroxaban-for-stroke-prevention-after-embolic-stroke-of-undetermined-source
#11
Robert G Hart, Mukul Sharma, Hardi Mundl, Scott E Kasner, Shrikant I Bangdiwala, Scott D Berkowitz, Balakumar Swaminathan, Pablo Lavados, Yongjun Wang, Yilong Wang, Antonio Davalos, Nikolay Shamalov, Robert Mikulik, Luis Cunha, Arne Lindgren, Antonio Arauz, Wilfried Lang, Anna Czlonkowska, Jens Eckstein, Rubens J Gagliardi, Pierre Amarenco, Sebastian F Ameriso, Turgut Tatlisumak, Roland Veltkamp, Graeme J Hankey, Danilo Toni, Daniel Bereczki, Shinichiro Uchiyama, George Ntaios, Byung-Woo Yoon, Raf Brouns, Matthias Endres, Keith W Muir, Natan Bornstein, Serefnur Ozturk, Martin J O'Donnell, Matthys M De Vries Basson, Guillaume Pare, Calin Pater, Bodo Kirsch, Patrick Sheridan, Gary Peters, Jeffrey I Weitz, W Frank Peacock, Ashkan Shoamanesh, Oscar R Benavente, Campbell Joyner, Ellison Themeles, Stuart J Connolly
Background Embolic strokes of undetermined source represent 20% of ischemic strokes and are associated with a high rate of recurrence. Anticoagulant treatment with rivaroxaban, an oral factor Xa inhibitor, may result in a lower risk of recurrent stroke than aspirin. Methods We compared the efficacy and safety of rivaroxaban (at a daily dose of 15 mg) with aspirin (at a daily dose of 100 mg) for the prevention of recurrent stroke in patients with recent ischemic stroke that was presumed to be from cerebral embolism but without arterial stenosis, lacune, or an identified cardioembolic source...
May 16, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29766766/recent-advances-in-objectifying-pain-using-neuroimaging-techniques
#12
Jessica Archibald, Freda M Warner, Oscar Ortiz, Madeson Todd, Catherine R Jutzeler
The pursuit of a physiological indicator of noxious stimulation is desirable as it has the potential to provide mechanistic information regarding acute pain, and may ultimately improve pain management strategies. Currently, there are no specific neurophysiological markers of pain to evaluate treatments. Recent attempts to identify neural correlates of pain have focused on different neuroimaging modalities. The purpose of this review is to discuss common neuroimaging techniques and findings thus far.
May 16, 2018: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29766661/structure-based-design-of-a-eukaryote-selective-antiprotozoal-fluorinated-aminoglycoside
#13
Hiroki Kanazawa, Oscar M Saavedra, Juan Pablo Maianti, Simon A Young, Luis Izquierdo, Terry K Smith, Stephen Hanessian, Jiro Kondo
Aminoglycosides (AG) are antibiotics that lower the accuracy of protein synthesis by targeting a highly-conserved RNA helix of the ribosomal A-site. The discovery of AGs that selectively target the eukaryotic ribosome, but lack activity in prokaryotes, are promising as antiprotozoals for the treatment of neglected tropical diseases, and as therapies to read-through point-mutation genetic diseases. However, a single nucleobase change A1408G in the eukaryotic A-site leads to negligible affinity for most AGs. Herein we report the synthesis of 6'-fluoro sisomicin, the first 6'-fluorinated aminoglycoside, which specifically interacts with the protozoal cytoplasmic rRNA A-site, but not the bacterial A-site, as evidenced by X-ray co-crystal structures...
May 15, 2018: ChemMedChem
https://www.readbyqxmd.com/read/29766459/cognitive-functioning-in-chiari-malformation-type-i-without-posterior-fossa-surgery
#14
Maitane García, Esther Lázaro, Juan Francisco López-Paz, Oscar Martínez, Manuel Pérez, Sarah Berrocoso, Mohammad Al-Rashaida, Imanol Amayra
Chiari Malformation type I (CM-I) is a neurological disorder characterized by a displacement of the cerebellar tonsils through the foramen magnum into the spinal canal. Most research has focused on physical symptomatology but few studies include neuropsychological examinations. Moreover, although current research highlights the involvement of the cerebellum on higher cognitive functions, little is known about cognitive consequences associated with CM-I. The aim of this study is to analyze cognitive functioning between 39 CM-I patients and 39 healthy controls, matched by gender, age and years of education...
May 15, 2018: Cerebellum
https://www.readbyqxmd.com/read/29766437/serum-phosphate-levels-are-related-to-all-cause-cardiovascular-and-copd-mortality-in-men
#15
Natalia Campos-Obando, Lies Lahousse, Guy Brusselle, Bruno H Stricker, Albert Hofman, Oscar H Franco, André G Uitterlinden, M Carola Zillikens
Hyperphosphatemia has been associated with increased mortality in chronic kidney disease but the nature of such a relation in the general population is unclear. To investigate the association between phosphate (P) levels and all-cause and cause-specific mortality, we assessed two cohorts from the Rotterdam Study, with follow-up of 14.5 (RS-I) and 10.9 (RS-II) years until January 2012 with availability of fasting phosphate levels. Deaths were classified according to International Classification of Diseases into 7 groups: cardiovascular, cancer, infections, external, dementia, chronic lung diseases and other causes...
May 15, 2018: European Journal of Epidemiology
https://www.readbyqxmd.com/read/29765970/clinical-description-of-frontal-fibrosing-alopecia-with-concomitant-lichen-planopilaris
#16
David Saceda-Corralo, Pablo Fernández-Crehuet, Pablo Fonda-Pascual, Cristina Pindado-Ortega, Oscar M Moreno-Arrones, Sergio Vañó-Galván
No abstract text is available yet for this article.
April 2018: Skin Appendage Disorders
https://www.readbyqxmd.com/read/29765355/tuberculosis-the-disrupted-immune-endocrine-response-and-the-potential-thymic-repercussion-as-a-contributing-factor-to-disease-physiopathology
#17
REVIEW
Luciano D'Attilio, Natalia Santucci, Bettina Bongiovanni, María L Bay, Oscar Bottasso
Upon the pathogen encounter, the host seeks to ensure an adequate inflammatory reaction to combat infection but at the same time tries to prevent collateral damage, through several regulatory mechanisms, like an endocrine response involving the production of adrenal steroid hormones. Our studies show that active tuberculosis (TB) patients present an immune-endocrine imbalance characterized by an impaired cellular immunity together with increased plasma levels of cortisol, pro-inflammatory cytokines, and decreased amounts of dehydroepiandrosterone...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29765144/mind-wandering-and-task-focused-attention-erp-correlates
#18
Óscar F Gonçalves, Gabriel Rêgo, Tatiana Conde, Jorge Leite, Sandra Carvalho, Olívia Morgan Lapenta, Paulo S Boggio
Previous studies looking at how Mind Wandering (MW) impacts performance in distinct Focused Attention (FA) systems, using the Attention Network Task (ANT), showed that the presence of pure MW thoughts did not impact the overall performance of ANT (alert, orienting and conflict) performance. However, it still remains unclear if the lack of interference of MW in the ANT, reported at the behavioral level, has a neurophysiological correspondence. We hypothesize that a distinct cortical processing may be required to meet attentional demands during MW...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29764837/il22-promotes-kras-mutant-lung-cancer-by-induction-of-a-pro-tumor-immune-response-and-protection-of-stemness-properties
#19
Nasim Khosravi, Mauricio S Caetano, Amber M Cumpian, Nese Unver, Cynthia De la Garza Ramos, Oscar Noble, Soudabeh Daliri, Belinda J Hernandez, Berenice A Gutierrez, Scott E Evans, Samir Hanash, Andrei M Alekseev, Yi Yang, Seon Hee Chang, Roza Nurieva, Humam Kadara, Jichao Chen, Edwin J Ostrin, Seyed Javad Moghaddam
Somatic KRAS mutations are the most common oncogenic variants in lung cancer and are associated with poor prognosis. Using a Kras-induced lung cancer mouse model, CC-LR, we previously showed a role for inflammation in lung tumorigenesis through activation of the NF-kB pathway, along with induction of interleukin 6 (IL6) and an IL17-producing CD4+ T-helper cell response. IL22 is an effector molecule secreted by CD4+ and γδ T cells that we previously found to be expressed in CC-LR mice. IL22 mostly signals through the STAT3 pathway and is thought to act exclusively on non-hematopoietic cells with basal IL22 receptor (IL22R) expression on epithelial cells...
May 15, 2018: Cancer Immunology Research
https://www.readbyqxmd.com/read/29763347/passive-observer-instruction-on-parental-satisfaction-in-a-dental-setting
#20
Hilma K Rodriguez, Mark S Webman, Oscar Arevalo, Rosie Roldan, Daniel M Saman
PURPOSE: To assess the effect of a single pre-operative instruction given to parents to be a passive observer on satisfaction with their child's dental visit. STUDY DESIGN: Parents of 105 healthy three to nine year-old patients presenting for their first restorative appointment were randomly assigned to the test or control group. The former received an oral instruction at the beginning of the appointment from the treating dentist to be a passive observer while the latter received a mock instruction...
May 15, 2018: Journal of Clinical Pediatric Dentistry
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