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https://www.readbyqxmd.com/read/29775400/evaluating-the-cytotoxicity-of-tin-dioxide-nanofibers
#1
Ashley S Reynolds, Tanya H Pierre, Rebecca McCall, Ji Wu, Worlanyo E Gato
Tin dioxide nanofibers (SnDNFs) are small fibers that have many applications. Tin dioxide nanofibers can be used in cosmetics, solar cells, toxic gas release sensors, and air pollution control. To date there have been few studies on the cytotoxicity of SnDNFs. The goal of this research is to determine if electrospun SnDNFs are toxic in a lung cancer cell line (A549). Considering the nano-scale size of the fibers, they can easily be inhaled and enter the pulmonary system and cause toxic effects in the lung. Occupational exposure to SnDNFs has been linked to pulmonary disease, making the A549 cell line important in this study...
May 18, 2018: Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering
https://www.readbyqxmd.com/read/29683002/short-term-evaluation-of-hepatic-toxicity-of-titanium-dioxide-nanofiber-tdnf
#2
Leah K Bartel, Daniel A Hunter, Kayla B Anderson, W Yau, Ji Wu, Worlanyo E Gato
Various in vitro and in vivo studies have shown titanium dioxide nanoparticles (TDNPs) increase the production of reactive oxygen species and change the expression of genes and proteins involved in the inflammatory response and cell division. Although, the cytotoxicity of TDNPs has been shown to be largely dependent on the characteristics of the particles including shape and surface area. This present study investigates the effects of titanium dioxide nanofibers (TDNFs) with a diameter of 300-800 nm, on the histopathology of liver tissue, changes in feed efficiency and liver weights, changes in hepatic gene expression, and serum biochemical parameters in male Sprague-Dawley rats...
April 23, 2018: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/29656235/effective-cancer-immunotherapy-in-mice-by-polyic-imiquimod-complexes-and-engineered-magnetic-nanoparticles
#3
Ana Isabel Bocanegra Gondan, Ane Ruiz-de-Angulo, Aintzane Zabaleta, Nina Gómez Blanco, Beatriz Macarena Cobaleda-Siles, María Jesús García-Granda, Daniel Padro, Jordi Llop, Blanca Arnaiz, María Gato, David Escors, Juan C Mareque-Rivas
Encouraging results are emerging from systems that exploit Toll like receptor (TLR) signaling, nanotechnology, checkpoint inhibition and molecular imaging for cancer immunotherapy. A major remaining challenge is developing effective, durable and tumour-specific immune responses without systemic toxicity. Here, we report a simple and versatile system based on synergistic activation of immune responses and direct cancer cell killing by combined TLR ligation using polyIC as TLR3 and imiquimod (R837) as TLR7 agonist, in combination with the model antigen ovalbumin (OVA) and phospholipid micelles loaded with zinc-doped iron oxide magnetic nanoparticles (MNPs)...
April 3, 2018: Biomaterials
https://www.readbyqxmd.com/read/29599151/draft-genome-sequences-of-two-epidemic-oxa-48-producing-klebsiella-pneumoniae-clinical-strains-isolated-during-a-large-outbreak-in-spain
#4
E Gato, L Álvarez-Fraga, J A Vallejo, S Rumbo-Feal, M Martínez-Guitián, A Beceiro, M Poza, G Bou, A Pérez
We report here the draft genome sequences of Klebsiella pneumoniae strains Kp1803 and Kp3380 isolated during a large outbreak at A Coruña Hospital in Spain. The final genome assemblies for Kp1803 and Kp3380 comprise approximately 6.6 and 6.1 Mb, respectively, and both strains have G+C contents of 57.2%.
March 29, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29543667/improving-patient-safety-in-public-hospitals-developing-standard-measures-to-track-medical-errors-and-process-breakdowns
#5
Sara L Ackerman, Gato Gourley, Gem Le, Pamela Williams, Jinoos Yazdany, Urmimala Sarkar
OBJECTIVE: The aim of the study was to develop standards for tracking patient safety gaps in ambulatory care in safety net health systems. METHODS: Leaders from five California safety net health systems were invited to participate in a modified Delphi process sponsored by the Safety Promotion Action Research and Knowledge Network (SPARKNet) and the California Safety Net Institute in 2016. During each of the three Delphi rounds, the feasibility and validity of 13 proposed patient safety measures were discussed and prioritized...
March 14, 2018: Journal of Patient Safety
https://www.readbyqxmd.com/read/29498550/high-versus-low-intensity-summer-treatment-for-adhd-delivered-at-secondary-school-transitions
#6
Margaret H Sibley, Stefany J Coxe, Mileini Campez, Candance Morley, Sandra Olson, Nick Hidalgo-Gato, Elizabeth Gnagy, Andrew Greiner, Erika K Coles, Timothy Page, William E Pelham
Spikes in symptom severity are noted for adolescents with attention deficit/hyperactivity disorder (ADHD) at the transitions to middle and high school that are attributed to developmental maladjustment. This study evaluated the effectiveness of high-intensity (HI; 412 hr, $4,373 per participant) versus low-intensity (LI; 24 hr, $97 per participant) skills-based summer intervention delivered to adolescents with ADHD by local school district staff. Participants were 325 ethnically diverse rising sixth and ninth graders with ADHD randomized to HI versus LI (n = 218) or recruited into an untreated comparison group (n = 107)...
March 2018: Journal of Clinical Child and Adolescent Psychology
https://www.readbyqxmd.com/read/29464518/erp-source-analysis-guided-by-fmri-during-familiar-face-processing
#7
Maria A Bobes, Agustin Lage-Castellanos, Ela I Olivares, Jhoanna Perez Hidalgo-Gato, Jaime Iglesias, Ana Maria Castro-Laguardia, Pedro Valdes-Sosa
Event related potentials (ERPs) provide precise temporal information about cognitive processing, but with poor spatial resolution, while functional magnetic resonance imaging (fMRI) reliably identifies brain areas involved, but with poor temporal resolution. Here we use fMRI to guide source localization of the ERPs at different times for studying the temporal dynamics of the neural system for recognizing familiar faces. fMRI activation areas were defined in a previous experiment applying the same paradigm used for ERPs...
February 20, 2018: Brain Topography
https://www.readbyqxmd.com/read/29433700/a-literature-review-of-cervical-cancer-screening-in-transgender-men
#8
REVIEW
Kayla C Gatos
Most female-to-male (FTM) transgender men retain their cervixes and need comprehensive sexual health care, including cervical cancer screening. According to the literature, FTM individuals obtain cervical cancer screening less frequently and are less likely to be up to date on their Pap tests compared with cisgender women. Misinformation related to human papillomavirus and cervical cancer risk was noted for health care providers and FTM individuals. Absence of transgender-specific guidelines or trained health care providers presents barriers to cervical cancer screening for FTM individuals, and further research is indicated to develop comprehensive guidelines unique to the needs and experiences of this population...
February 2018: Nursing for Women's Health
https://www.readbyqxmd.com/read/29400569/the-value-of-the-identification-of-predisposing-factors-for-post-traumatic-amnesia-in-management-of-mild-traumatic-brain-injury
#9
George Fotakopoulos, Demosthenes Makris, Eleni Tsianaka, Polikceni Kotlia, Paulos Karakitsios, Charalabos Gatos, Alkiviadis Tzannis, Kostas Fountas
OBJECT: To identify the risk factors for post-traumatic amnesia (PTA) and to document the incidence of PTA after mild traumatic brain injuries. METHODS: This was a prospective study, affecting mild TBI (mTBI) (Glasgow Coma Scale 14-15) cases attending to the Emergency Department between January 2009 and April 2012 (40 months duration). Patients were divided into two groups (Group A: without PTA, and Group B: with PTA, and they were assessed according to the risk factors...
2018: Brain Injury: [BI]
https://www.readbyqxmd.com/read/29383141/yap1-regulates-prostate-cancer-stem-cell-like-characteristics-to-promote-castration-resistant-growth
#10
Ning Jiang, Binghu Ke, Kim Hjort-Jensen, Diego Iglesias-Gato, Zhun Wang, Pengcheng Chang, Yang Zhao, Xiaodan Niu, Tao Wu, Bo Peng, Mingdong Jiang, Xiaoshi Li, Zhiqun Shang, Qiang Wang, Chawnshang Chang, Amilcar Flores-Morales, Yuanjie Niu
Castration resistant prostate cancer (CRPC) is a stage of relapse that arises after various forms of androgen ablation therapy (ADT) and causes significant morbidity and mortality. However, the mechanism underlying progression to CRPC remains poorly understood. Here, we report that YAP1, which is negatively regulated by AR, influences prostate cancer (PCa) cell self-renewal and CRPC development. Specifically, we found that AR directly regulates the methylation of YAP1 gene promoter via the formation of a complex with Polycomb group protein EZH2 and DNMT3a...
December 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/29338241/characterization-of-macrophage-endogenous-s-nitrosoproteome-using-a-cysteine-specific-phosphonate-adaptable-tag-in-combination-with-tio-2-chromatography
#11
María Ibáñez-Vea, Honggang Huang, Xabier Martínez de Morentin, Estela Pérez, Maria Gato, Miren Zuazo, Hugo Arasanz, Joaquin Fernández-Irigoyen, Enrique Santamaría, Gonzalo Fernandez-Hinojal, Martin R Larsen, David Escors, Grazyna Kochan
Protein S-nitrosylation is a cysteine post-translational modification mediated by nitric oxide. An increasing number of studies highlight S-nitrosylation as an important regulator of signaling involved in numerous cellular processes. Despite the significant progress in the development of redox proteomic methods, identification and quantification of endogeneous S-nitrosylation using high-throughput mass-spectrometry-based methods is a technical challenge because this modification is highly labile. To overcome this drawback, most methods induce S-nitrosylation chemically in proteins using nitrosylating compounds before analysis, with the risk of introducing nonphysiological S-nitrosylation...
March 2, 2018: Journal of Proteome Research
https://www.readbyqxmd.com/read/29164517/the-mycoestrogen-zearalenone-in-portuguese-flowing-waters-and-its-potential-environmental-impact
#12
Célia S M Laranjeiro, Liliana João Gatões da Silva, André M P T Pereira, Angelina Pena, Celeste M Lino
This study provides the first environmental risk assessment (ERA) for zearalenone (ZEN), the only known mycoestrogen, based on a broad-scale investigation on its occurrence in rivers and creeks from Portugal. Water sample filtration and immunoaffinity columns (IAC) clean-up followed by liquid chromatograph with tandem mass spectrometry (LC/MS n ) provided an analytical method with good analytical performance. ZEN levels were determined for seven Portuguese rivers and one creek, during two different seasons, in a total of 38 samples collected upstream wastewater treatment plants (WWTPs)...
March 2018: Mycotoxin Research
https://www.readbyqxmd.com/read/29164064/quantitative-mass-spectrometry-based-proteomic-profiling-for-precision-medicine-in-prostate-cancer
#13
REVIEW
Amilcar Flores-Morales, Diego Iglesias-Gato
Prostate cancer (PCa) is one of the most frequently diagnosed cancer among men in the western societies. Many PCa patients bear tumors that will not threat their lives if left untreated or if treatment is delayed. Our inability for early identification of these patients has resulted in massive overtreatment. Therefore, there is a great need of finding biomarkers for patient stratification according to prognostic risk; as well as there is a need for novel targets that can allow the development of effective treatments for patients that progress to castration-resistant PCa...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/29155064/enterprise-deployment-through-pulserider-to-treat-anterior-communicating-artery-aneurysm-recurrence
#14
Iacopo Valente, Nicola Limbucci, Sergio Nappini, Andrea Rosi, Antonio Laiso, Salvatore Mangiafico
BACKGROUND: PulseRider (Pulsar Vascular, Los Gatos, California, USA) is a new endovascular device designed to treat wide-neck bifurcation intracranial aneurysms. Deployment of a stent through a PulseRider to treat an aneurysm's recurrence has never been described before. CASE DESCRIPTION: We report the case of a 55-year-old man who underwent coiling of an 8-mm anterior communicating artery aneurysm with assistance of a PulseRider neck reconstruction device. The 6-month digital subtraction angiography control showed aneurysm recurrence, so we deployed an Enterprise 2 closed-cell stent (Codman, Miami Lakes, Florida, USA) in the A1-A2 segment passing across the previously implanted PulseRider...
February 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29118569/-embolia-cutis-medicamentosa-an-unusual-adverse-reaction-to-terlipressin
#15
Polychronis Gatos-Gatopoulos, Stephanos Kostantoudakis, Ioannis G Panayiotides, George D Dimitriadis, Konstantinos Triantafyllou
Terlipressin is a synthetic long-acting analog of vasopressin widely used to control variceal bleeding by lowering portal venous pressure. We report an unusual adverse reaction to terlipressin in a 78-year-old patient with esophageal variceal bleeding who developed skin necrosis soon after treatment initiation. Skin biopsy revealed embolia cutis medicamentosa.
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/29114543/molecular-mechanisms-of-programmed-cell-death-1-dependent-t-cell-suppression-relevance-for-immunotherapy
#16
REVIEW
Miren Zuazo, Maria Gato-Cañas, Noelia Llorente, María Ibañez-Vea, Hugo Arasanz, Grazyna Kochan, David Escors
Programmed cell death-1 (PD1) has become a significant target for cancer immunotherapy. PD1 and its receptor programmed cell death 1 ligand 1 (PDL1) are key regulatory physiological immune checkpoints that maintain self-tolerance in the organism by regulating the degree of activation of T and B cells amongst other immune cell types. However, cancer cells take advantage of these immunosuppressive regulatory mechanisms to escape T and B cell-mediated immunity. PD1 engagement on T cells by PDL1 on the surface of cancer cells dramatically interferes with T cell activation and the acquisition of effector capacities...
October 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29063203/cortical-dysplasia-and-autistic-trait-severity-in-children-with-tuberous-sclerosis-complex-a-clinical-epidemiological-study
#17
Sabine E Mous, Iris E Overwater, Rita Vidal Gato, Jorieke Duvekot, Leontine W Ten Hoopen, Maarten H Lequin, Marie-Claire Y de Wit, Gwendolyn C Dieleman
Tuberous Sclerosis Complex (TSC) is characterized by a high prevalence of autism spectrum disorders (ASD). Little is known about the relation between cortical dysplasia and ASD severity in TSC. We assessed ASD severity (using the Autism Diagnostic Observation Scale), tuber and radial migration line (RML) count and location, and cognitive functioning in 52 children with TSC and performed regression and mediation analyses. Tuber and RML count were strongly positively related to ASD severity. However, when correcting for cognitive functioning, the majority of associations became insignificant and only total tuber count remained associated to the severity of restricted/repetitive behaviors...
October 23, 2017: European Child & Adolescent Psychiatry
https://www.readbyqxmd.com/read/29057356/anterior-cervical-spine-surgery-associated-complications-in-a-retrospective-case-control-study
#18
REVIEW
Anastasia Tasiou, Theofanis Giannis, Alexandros G Brotis, Ioannis Siasios, Iordanis Georgiadis, Haralampos Gatos, Eleni Tsianaka, Konstantinos Vagkopoulos, Konstantinos Paterakis, Kostas N Fountas
Anterior cervical spine procedures have been associated with satisfactory outcomes. However, the occurrence of troublesome complications, although uncommon, needs to be taken into consideration. The purpose of our study was to assess the actual incidence of anterior cervical spine procedure-associated complications and identify any predisposing factors. A total of 114 patients undergoing anterior cervical procedures over a 6-year period were included in our retrospective, case-control study. The diagnosis was cervical radiculopathy, and/or myelopathy due to degenerative disc disease, cervical spondylosis, or traumatic cervical spine injury...
September 2017: Journal of Spine Surgery (Hong Kong)
https://www.readbyqxmd.com/read/29050447/uncaria-tomentosa
#19
Valentina Della Valle
Uncaria tomentosa (U. tomentosa) or uña de gato, a species of vine of Rubiaceae family, was used from centuries in various medical conditions. Although there are no randomized controlled trials or published human outcome studies, some conditions reportedly improved by U. tomentosa include osteoarthritis, rheumatoid arthritis, prostatitis, viral illnesses and cancer (acting as a non-specific immunomodulantign agent) and it may also have potential as an immunomodulating adaptogen in cellular aging. The understanding of some specific mechanisms of molecular action leads to the demonstration of various anti-inflammatory, immunostimulating and protective effects...
December 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29032490/myeloid-derived-suppressor-cells-in-the-tumor-microenvironment-current-knowledge-and-future-perspectives
#20
REVIEW
Maria Ibáñez-Vea, Miren Zuazo, Maria Gato, Hugo Arasanz, Gonzalo Fernández-Hinojal, David Escors, Grazyna Kochan
The current knowledge on tumor-infiltrating myeloid-derived suppressor cells (MDSCs) is based mainly on the extensive work performed in murine models. Data obtained for human counterparts are generated on the basis of tumor analysis from patient samples. Both sources of information led to determination of the main suppressive mechanisms used by these cell subsets in tumor-bearing hosts. As a result of the identification of protein targets responsible for MDSCs suppressive activity, different therapeutics agents have been used to eliminate/reduce their adverse effect...
April 2018: Archivum Immunologiae et Therapiae Experimentalis
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