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Epidemiological and clinical characteristics of COVID-19 in a Brazilian public hospital

World journal of Clinical Cases 2023年第8期11卷 1761-1770页

作者： Fillipe Dantas Pinheiro Luana Weber Lopes Rafael santos Dantas Miranda Dórea Glauber Rocha Lima Araújo Filipe Antônio França da Silva Breno Bittencourt de Brito Maria Luísa Cordeiro santos geovani moreno santos júnior Maria Teresa Araújo de Lorenzo Barcia Renata de Amorim Marques AndréBezerra Botelho Anna Carolina Saúde Dantas Davi Tanajura Costa Adriano Fernandes Teixeira Cláudio Lima Souza Lucas Miranda Marques Guilherme Barretos Campos Márcio Vasconcelos Oliveira Dulciene Maria de Magalhães Queiroz Fabrício Freire de Melo Instituto Multidisciplinar em Saúde Universidade Federal da BahiaVitória da Conquista 45029-094BahiaBrazil Hospital Geral de Vitória da Conquista Vitória da Conquista 45030-160BahiaBrazil Departamento de Ciências da Saúde Universidade Estadual do Sudoeste da Bahia(UESB)Vitória da Conquista 45083-900BahiaBrazil Faculdade de Medicina Universidade Federal de Minas GeraisBelo Horizonte 31270-901Minas GeraisBrazil

BACKGROUND The coronavirus disease 2019(COVID-19)pandemic has become a major health concern *** that context,the understanding of epidemiological and clinical features associated with the disease and its severity is crucial for the establishment of strategies aimed at disease control and *** To describe epidemiological features,signs,symptoms,and laboratory findings among severely ill COVID-19 patients from an inten-sive care unit in northeastern Brazil as well as to evaluate predictor factors for disease *** This is a prospective single-center study that evaluated 115 patients admitted to the intensive care unit in a northeastern Brazilian *** The patients had a median age of 65.60±15.78 *** was the most frequent symptom,affecting 73.9%of the patients,followed by cough(54.7%).Fever was reported in approximately one-third of patients and myalgia in 20.8%of the *** least two comorbidities were found in 41.7%of the patients,and hypertension was the most prevalent(57.3%).In addition,having two or more comorbidities was a predictor of mortality,and lower platelet count was positively associated with *** and vomiting were two symptoms that were predictors of death,and the presence of a cough was a protective *** This is the first report of a negative correlation between cough and death in severely ill severe acute respiratory syndrome coronavirus 2-infected *** associations between comorbidities,advanced age,and low platelet count and the outcomes of the infection were similar to the results of previous studies,highlighting the relevance of these features.

关键词： COVID-19 Epidemiology Symptoms Comorbidities Laboratory parameters

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Tribological performance of uncoated and TiCN-coated D2,M2 and M4 steels under lubricated condition

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journal of Iron and Steel Research International 2017年第8期24卷 823-829页

作者： Luis Daniel Aguilera Camacho santos García Miranda Karla judith moreno Instituto Tecnologico de Celaya/TNM Apartado Postal 5738010-CelayaGuanajuatoMexico

Hard coatings are used to improve the wear resistance of metals which largely depends on adhesion between substrate and *** wear and friction behavior of uncoated and TiCN-coated D2,M2 and M4 steels were evaluated by apin-on-disk test under lubricated *** order to evaluate the influence of lubricant on wear performance,dry friction tests were also *** results showed that friction coefficients were very similar for both uncoated and TiCN-coated *** lubricated conditions,the uncoated D2 tool steel exhibited the lowest friction coefficient,but the TiCN-coated D2 steel presented the smallest wear *** was the main wear mechanism in all the ***,microhardness measurements were carried out,finding an influence of the steel substrate on the hardness of the ***,adhesion test was conducted,suggesting agood adhesion of class 1 between substrates and TiCN coatings.

关键词： D2 tool steel M2 high speed steel M4 high speed steel TiCN coating Friction Wear

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TT virus infection in patients with chronic hepatitis B and response of TTV to lamivudine

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World journal of Gastroenterology 2003年第6期9卷 1261-1264页

作者： javier moreno Garcia Rafael Barcena Marugan Gloria Moraleda Garcia M Luisa Mateos Lindeman jesus Fortun Abete santos del Campo Terron Department of Gastroenterology Hospital Ramony CajalMadridSpain Department of Microbiology Hospital Ramony CajalMadridSpain Department of Infectious Diseases Hospital Ramony CajalMadridSpain

AIM: To investigate the responses of TT virus (TTV) and hepatitis B virus (HBV) to a long-term lamivudine ***: Sixteen patients infected with both TTV and HBV were treated with lamivudine 100 mg daily for 30 months. Blood samples were drawn at the beginning of the therapy and subsequently at month 3, 6, 9, 12 and *** TTV was quantified by real time PCR and serum HBV was detected by hybridization assay and nested polymerase chain ***: TTV infection was detected in 100 % of HBV-infected patients. Loss of serum TTV DNA after one year of treatment occurred in 1/16 (6 %) patients. At the end of therapy, TTV DNA was positive in 94 % of them. The decline of HBV viremia was evident at 3 months after therapy and the response rate was 31%, 44 %, 63 %, 50 % and 50 %at month 3, 6, 9, 12 and 30, ***: TTV replication is not sensitive to lamivudine and is highly prevalent in HBV-infected patients.

关键词： Torque teno virus Adult Aged DNA Virus Infections Female Hepatitis B, Chronic Humans Lamivudine Male Middle Aged Prevalence Reverse Transcriptase Inhibitors Virus Replication

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Prevention of de novo HBV infection by the presence of anti-HBs in transplanted patients receiving core antibody-positive livers

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World journal of Gastroenterology 2006年第13期12卷 2070-2074页

作者： Rafael Barcena Gloria Moraleda javier moreno M Dolores Martín Emilio de Vicente jesús Nuo M Luisa Mateos santos del Campo Department of Gastroenterology Hospital Ramón y Cajal Facultad de MedicinaUniversidad de AlcaláCtra. Colmenar Km 9.128034 MadridSpain Digestive Diseases Hospital Universitario La Paz 28034 MadridSpain Department of Surgery Hospital Ramón y Cajal Facultad de MedicinaUniversidad de Alcalá28034 MadridSpain Department of Microbiology Hospital Ramón y Cajal Facultad de MedicinaUniversidad de Alcalá28034 MadridSpain

AIM： To analyze whether the presence of anti-HBs in liver transplant recipients is effective in preventing HBV infection. METHODS： Twenty-three patients receiving anti-HBc positive liver were studied. Nine recipients were anti-HBc positive as a result of previous HBV infection. Of them, one also received HBV vaccine during the pre-liver transplantation period. Fourteen recipients were anti-HBs positive due to HBV vaccine administered during the pretransplant period. Liver biopsy was obtained in 10/14 anti-HBc negative/anti-HBs positive recipients and in 4/9 anti-HBc positive recipients. RESULTS： After a mean foUow-up period of 46 months, 1 recipient with protective serum anti-HBs levels developed de novo HBV infection as a consequence of immune escape HBV mutants. Among the 14 vaccinated anti-HBc negative/anti-HBs positive recipients, 1/10 patients with available liver biopsy （10%） had liver HBV-DNA at 13 mo post-liver transplantation without serum viral markers and did not develop de novo HBV *** vaccinated anti-HBc positive recipient without HBV vaccine response was HBV-DNA positive in serum and liver, viral DNA was continuously negative in the following tests, so a spontaneous seroconversion was diagnosed. CONCLUSION： The presence of anti-HBs as a result of HBV vaccine or past HBV infection seems to be effective at protecting patients receiving livers from anti-HBc positive donors. However, the emergence of immune escape HBV mutants, which can evade the anti-HBs protection, should be considered as a risk of HBV infection.

关键词： HBV vaccine Liver transplantation De novo HBV infection Hepatitis B core antibody

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Minimizing sperm oxidative stress using nanotechnology for breeding programs in rams

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journal of Animal Science and Biotechnology 2023年第6期14卷 2395-2410页

作者： Alejandro jurado‑Campos Pedro javier Soria‑Meneses Maria Arenas‑Moreira Carlos Alonso‑moreno Virginia Rodriguez‑Robledo Ana josefa Soler jose julian Garde Maria del Rocio Fernandez‑santos SaBio IREC(CSIC-UCLM-jCCM) Campus UniversitarioS/N02071 AlbaceteSpain. Departamento de Quimica Inorganica Organica Y Bioquimica‑Centro de Innovacion en Quimica Avanzada(ORFEO‑CINQA)Facultad de FarmaciaUniversidad de Castilla-La Mancha02008 AlbaceteSpain. Centro Regional de Investigacion Biomedicas Unidad nanoDrugUniversidad de Castilla-La Mancha02008 AlbaceteSpain. Facultad de Farmacia Universidad de Castilla La Mancha02071 AlbaceteSpain.

Background Artificial insemination(AI)is a routine breeding technology in animal ***,the temperature-sensitive nature and short fertile lifespan of ram sperm samples hamper its use in *** this sense,nanotechnology is an interesting tool to improve sperm protection due to the development of nanomaterials for AI,which could be used as delivery *** this work,we explored the feasibility of vitamin E nanoemulsion(NE)for improving sperm quality during *** With the aim of evaluating this proposal,ejaculates of 7 mature rams of Manchega breed were collected by artificial vagina and extended to 60×10^(6)spz/mL in *** containing control and NE(12 mmol/L)with and without exogenous oxidative stress(100μmol/L Fe2+/ascorbate)were stored at 22 and 15℃and motility(CASA),viability(YO-PRO/PI),acrosomal integrity(PNA-FITC/PI),mitochondrial membrane potential(Mitotracker Deep Red 633),lipoperoxidation(C11 BODIPY 581/591),intracellular reactive oxygen species(ROS)production and DNA status(SCSAR)monitored during 96 *** results show that NE could be used to maintain ram spermatozoa during transport at 15 and 22℃for up to 96 h,with no appreciable loss of kinematic and physiological characteristics of freshly collected *** The storage of ram spermatozoa in liquid form for 2-5 d with vitamin E nanoemulsions may lead more flexibility to breeders in AI *** view of the potential and high versatility of these nanodevices,further studies are being carried out to assess the proposed sperm preservation medium on fertility after artificial insemination.

关键词： Breeding technology Nanoemulsions Nanotechnology Sperm oxidative stress Vitamin E

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An aqueous extract of Liu Wei Di Huang Wan alters the labeling of blood constituents with Technetium-99m

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Chinese Science Bulletin 2013年第18期58卷 2061-2065页

作者： MATOS Vernica Soares de CARMO Fernanda santos do DINIZ Claudia Leite NASCIMENTO Ana Lucia Rosa PEREIRA Márcia Oliveira FERNANDES joelma Fonseca de Oliveira santos-FILHO Sebastiao David moreno Silvana Ramos Farias BERNARDO-FILHO Mario Departamento de Biofísica e Biometria Instituto de Biologia Roberto Alcantara GomesUniversidade do Estado do Rio de Janeiro

The Liu Wei Di Huang Wan is a formula of a traditional Chinese medicine that is used to treat asthma patients and has been shown to have several important properties,such as antioxidant and free radical scavenging *** influence of an extract of Liu Wei Di Huang Wan on the labeling of blood constituents with technetium-99m was *** blood(Wistar rats) was incubated with the extract,stannous chloride and technetium-99m,as sodium *** were centrifuged and aliquots of plasma and blood cells were separated and precipitated with trichloroacetic acid,to obtain soluble and insoluble fractions of the blood *** percentage of radioactivity(%ATI) in all the fractions was *** analysis of the results shows that the extract at the highest concentration used(70 mg/mL) decreased significantly(P<0.05) the %ATI(from 96.48 ± 1.19 to 54.46 ± 7.38) on blood cells compartment,(from 81.11 ± 4.15 to 61.33 ± 4.74) on insoluble fractions of blood cells and(from 65.91 ± 2.44 to 13.15 ± 3.62) on insoluble fractions of *** conclusion,the results suggest that the substances present on this extract can alter this labeling process,probably due to(i) redox properties(antioxidant and chelator activities) and/or(ii) specific actions in the binding sites where the 99mTc would be bound on the blood *** a consequence,precaution is suggested on the interpretation of the nuclear medicine results from performed with blood constituents labeled with 99m Tc in patients that have undertaken LWDHW,although the current findings were obtained in experimental animal models.

关键词：六味地黄丸血液成分标签水提物 Wistar大鼠氧化还原性能锝实验动物模型

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Whole lesion histogram analysis of apparent diffusion coefficient predicts therapy response in locally advanced rectal cancer

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World journal of Gastroenterology 2022年第23期28卷 2609-2624页

作者： Mayra Evelia jiménez de los santos juan Armando Reyes-Pérez Victor Domínguez Osorio Yolanda Villaseñor-Navarro Liliana moreno-Astudillo Itzel Vela-Sarmiento Isabel Sollozo-Dupont Department of Radiology National Cancer InstituteMexico 14080Mexico Department of Gastrointestinal Surgery National Cancer InstituteMexico 14080Mexico

BACKGROUND Whole-tumor apparent diffusion coefficient(ADC)histogram analysis is relevant to predicting the neoadjuvant chemoradiation therapy(nCRT)response in patients with locally advanced rectal cancer(LARC).AIM To evaluate the performance of ADC histogram-derived parameters for predicting the outcomes of patients with *** This is a single-center,retrospective study,which included 48 patients with *** patients underwent a pre-treatment magnetic resonance imaging(MRI)scan for primary tumor staging and a second restaging MRI for response *** sample was distributed as follows:18 responder patients(R)and 30 non-responders(non-R).Eight parameters derived from the whole-lesion histogram analysis(ADCmean,skewness,kurtosis,and ADC10^(th),25^(th),50^(th),75^(th),90^(th) percentiles),as well as the ADCmean from the hot spot region of interest(ROI),were calculated for each patient before and after *** all data were compared between R and non-R using the Mann-Whitney U *** measures of diagnostic accuracy were applied:the receiver operating characteristic curve and the diagnostic odds ratio(DOR).We also reported intra-and interobserver variability by calculating the intraclass correlation coefficient(ICC).RESULTS Post-nCRT kurtosis,as well as post-nCRT skewness,were significantly lower in R than in non-R(both P<0.001,respectively).We also found that,after treatment,R had a larger loss of both kurtosis and skewness than non-R(Δ%kurtosis and Δ skewness,P<0.001).Other parameters that demonstrated changes between groups were post-nCRT ADC10^(th),Δ%ADC10^(th),Δ%ADCmean,and ROIΔ%***,the best diagnostic performance was achieved byΔ%kurtosis at a threshold of 11.85%(Area under the receiver operating characteristic curve[AUC]=0.991,DOR=376),followed by post-nCRT kurtosis=0.78×10^(-3)mm^(2)/s(AUC=0.985,DOR=375.3),Δskewness=0.16(AUC=0.885,DOR=192.2)and post-nCRT skewness=1.59×10^(-3)mm^(2)/s(AUC=0.815,DOR=168.6).Finally,intraclass corr

关键词： Apparent diffusion coefficient Diffusion-weighted imaging Histogram analysis Magnetic resonance imaging Locally advanced rectal cancer

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Arabidopsis SWC4 Binds DNA and Recruits the SWR1 Complex to Modulate Histone H2A.Z Deposition at Key Regulatory Genes

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Molecular Plant 2018年第6期11卷 815-832页

作者： Angeles Gomez-Zambrano Pedro Crevillen jose M. Franco-Zorrilla juan A. Lopez jordi moreno-Romero Pawel Roszak juan santos-Gonzalez Silvia jurado jesus Vazquez Claudia Kohler Roberto Solano Manuel Pineiro jose A. jarillo Centro de Biotecnologia y Genomica de Plantas Universidad Politecnica de Madrid (UPM) - Instituto Nacional de Investigacion y Tecnologia Agraria y Alimentaria (INIA) Campus Montegancedo UPM Pozuelo de Alarcon 28223 Madrid Spain Plant Molecular Genetics Department and Genomics Unit Centro Nacional de Biotecnologia Consejo Superior de Investigaciones Cientfficas 28049 Madrid Spain Proteomics Unit Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) 28029 Madrid Spain Department of Plant Biology Uppsala BioCenter Swedish University of Agricultural Sciences and Linnean Center for Plant Biology Uppsala 75652 Sweden Laboratory of Cardiovascular Proteomics Centro Nacional de Investigaciones Cardiovasculares Carlos III (CNIC) 28029 Madrid Spain Instituto de Bioquimica Vegetal y Fotosintesis Consejo Superior de Investigaciones Cientfficas and Universidad de Sevilla 41092 Sevilla Spain Centre for Research in Agricultural Genomics (CRAG) CSIC-IRTA-UAB-UB Campus UAB Bellaterra Barcelona Spain The Sainsbury Laboratory Cambridge CB2 1LR UK

Deposition of the H2A.Z histone variant by the SWR1 complex （SWRI-C） in regulatory regions of specific loci modulates transcription. Characterization of mutations in Arabidopsis thaliana homologs of yeast SWRI-C has revealed a role for H2A.Z exchange in a variety of developmental processes. Nevertheless, the exact composition of plant SWRI-C and how it is recruited to target genes remains to be established. Here we show that SWC4, the Arabidopsis homolog of yeast SANT domain protein Swc4/Eaf2, is a DNA-binding protein that interacts with SWR1-C subunits. We demonstrate that the swc4-1 knockout mutant is embryo- lethal, while SWC4 RNAi knockdown lines display pleiotropic phenotypic alterations in vegetative and repro- ductive traits, including acceleration of flowering time, indicating that SWC4 controls post-embryonic processes. Transcriptomic analyses and genome-wide profiling of H2A.Z indicate that SWC4 represses tran- scription of a number of genes, including the floral integrator FT and key transcription factors, mainly by modulating H2A.Z deposition. Interestingly, SWC4 silencing does not affect H2A.Z deposition at the FLC locus nor expression of this gene, a master regulator of flowering previously shown to be controlled by SWR1-C. Importantly, we find that SWC4 recognizes specific AT-rich DNA elements in the chromatin regions of target genes and that SWC4 silencing impairs SWRI-C binding at FT. Collectively, our data suggest that SWC4 regulates plant growth and development by aiding SWR1-C recruitment and modulating H2A.Z deposition.

关键词： Arabidopsis SWC4 chromatin SWR1 complex H2A.Z deposition flowering time

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Are There Schizophrenia Genetic Markers and Mutations? A Systematic Review and Meta-Analyses

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Health 2017年第5期9卷 811-838页

作者： Maria Auxiliadora Brasil Sampaio Cardoso Tárcia januário do Nascimento Gabriel Pereira Bernardo Lorena Pereira Bernardo Maria Mirelle Ferreira Leite Barbosa Pedro januário Nascimento Neto Danilo Ferreira de Sousa Antonio Gilvan Teixeira júnior Marcos Antonio Pereira de Lima Marcial moreno Moreira David de Sousa Gregório Lídia Coelho do Nascimento santos Modesto Leite Rolim Neto Postgraduate Program in Health Science FMABC Santo André Brazil Faculty of Medicine Estacio (FMJ) Juazeiro do Norte Brazil Federal University of Cariri (UFCA) Faculty of Medicine Barbalha Brazil Science without Borders fellow at University of Liverpool Liverpool UK

Background: Schizophrenia is a severe psychiatric disorder with a complex genetic factor determining its disease onset. Nevertheless, it is not clear in this mental disorder. Objective: To conduct a systematic review of articles regarding the genetic markers and mutations in schizophrenia. Methods: A systematic review of articles on genetic markers and mutations in schizophrenia, published from january 1, 2011, to September 7, 2015, on SCOPUS database was carried out. Search terms were “Genetic markers”, “Mutation”, and “Schizophrenia”. Results: Of the 527 retrieved studies, 31 met the eligibility criteria. Genetic polymorphism, Immune-associated genes, TCF4 and ZNF804A association with microRNA, Neuregulin gene, Chromosome 13q32 and 11p15.4, genes involved in glutamatergic via schizophrenia and brain structure, appeared to be associated with the origin of schizophrenia. Conclusion: Some studies show genes involved in several pathways leading to the disease pathogenesis such as that one related with the dopaminergic and immune system, or rare alleles. Some genes present no involvement in the etiology of this mental disorder. These findings clarify the genetic complexity of schizophrenia and affirm that together, the genes have an overall effect greater than the sum of the individual effect of each gene.

关键词： Schizophrenia Genetic Markers Mutations Systematic Review

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Conditioned Taste Aversion Diminishes Sugar Intake

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Food and Nutrition Sciences 2014年第11期5卷 997-1004页

作者： Alma Gabriela Martínez moreno Antonio López-Espinoza Imelda de León López Laura Vanesa Solano santos Fernando Hernández- Leonardo Behavioral Feeding and Nutrition Research Center CUSur University of Guadalajara Ciudad Guzmán México

Animals learn to avoid particular food when some of its sensory properties are associated with gastrointestinal discomfort. Twenty rats were exposed to free access to food and a sugar solution for ten days in first phase. During second phase, experimental group received a dose of LiCl. Control group received an injection without LiCl. Both groups had free access to a sugar solution and food restriction for three days. In the final phase, both groups returned to the conditions of first phase. Results showed a significant decrease in sugar intake after aversive conditioning regarding the intake registered in the initial phase in experimental group. Control group did not show any differences in its sugar intake before and after the experimental manipulation. The procedure carried out is discussed as a means to decrease sugar intake.

关键词： Sugar LiCl Conditioned Taste Aversion Rats

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