Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 7 de 7
Filtrar
Mais filtros











Base de dados
Intervalo de ano de publicação
1.
Bogotá; Instituto Nacional de Salud;Dirección de Vigilancia y Análisis del Riesgo en Salud Pública; 20220901. 1-32 p. graf, TAB, ilus.
Não convencional em Espanhol | COLNAL | ID: biblio-1393303

RESUMO

Esta es la primera edición del Manual para la evaluación de la respuesta con base en la metodología Evaluación después de la acción ("After Action Review"), como herramienta para su implementación en los niveles nacionales y subnacionales, cuya finalidad es la de aportar herramientas que contribuyan al desarrollo del monitoreo y la evaluación a la preparación, planeación y la respuesta ante brotes, epidemias y eventos de interés en salud pública ­ EISP en el marco de la gestión del riesgo.


This is the first edition of the Handbook for evaluation of the response based on the methodology Evaluation after the action ("After Action Review"), as a tool for its implementation in the national and subnational levels, whose purpose is the to provide tools that contribute to the development from monitoring and evaluation to preparedness, planning and response to outbreaks, epidemics and events of interest in public health ­ EISP in the framework of risk management.


Assuntos
Sistema de Alarme e Alerta
2.
Microb Cell Fact ; 19(1): 61, 2020 Mar 06.
Artigo em Inglês | MEDLINE | ID: mdl-32143621

RESUMO

BACKGROUND: In the last decade, increasing evidence has shown that changes in human gut microbiota are associated with diseases, such as obesity. The excreted/secreted proteins (secretome) of the gut microbiota affect the microbial composition, altering its colonization and persistence. Furthermore, it influences microbiota-host interactions by triggering inflammatory reactions and modulating the host's immune response. The metatranscriptome is essential to elucidate which genes are expressed under diseases. In this regard, little is known about the expressed secretome in the microbiome. Here, we use a metatranscriptomic approach to delineate the secretome of the gut microbiome of Mexican children with normal weight (NW) obesity (O) and obesity with metabolic syndrome (OMS). Additionally, we performed the 16S rRNA profiling of the gut microbiota. RESULTS: Out of the 115,712 metatranscriptome genes that codified for proteins, 30,024 (26%) were predicted to be secreted, constituting the Secrebiome of the gut microbiome. The 16S profiling confirmed an increased abundance in Firmicutes and decreased in Bacteroidetes in the obesity groups, and a significantly higher richness and diversity than the normal weight group. We found novel biomarkers for obesity with metabolic syndrome such as increased Coriobacteraceae, Collinsela, and Collinsella aerofaciens; Erysipelotrichaceae, Catenibacterium and Catenibacterium sp., and decreased Parabacteroides distasonis, which correlated with clinical and anthropometric parameters associated to obesity and metabolic syndrome. Related to the Secrebiome, 16 genes, homologous to F. prausniitzi, were overexpressed for the obese and 15 genes homologous to Bacteroides, were overexpressed in the obesity with metabolic syndrome. Furthermore, a significant enrichment of CAZy enzymes was found in the Secrebiome. Additionally, significant differences in the antigenic density of the Secrebiome were found between normal weight and obesity groups. CONCLUSIONS: These findings show, for the first time, the role of the Secrebiome in the functional human-microbiota interaction. Our results highlight the importance of metatranscriptomics to provide novel information about the gut microbiome's functions that could help us understand the impact of the Secrebiome on the homeostasis of its human host. Furthermore, the metatranscriptome and 16S profiling confirmed the importance of treating obesity and obesity with metabolic syndrome as separate conditions to better understand the interplay between microbiome and disease.


Assuntos
Bactérias/classificação , Microbioma Gastrointestinal/genética , Perfilação da Expressão Gênica , Síndrome Metabólica/microbiologia , Obesidade Infantil/microbiologia , Bactérias/metabolismo , Criança , Estudos de Coortes , Fezes/microbiologia , Feminino , Microbioma Gastrointestinal/fisiologia , Expressão Gênica , Interações entre Hospedeiro e Microrganismos , Humanos , Masculino , Síndrome Metabólica/etiologia , México , Obesidade Infantil/complicações , RNA Ribossômico 16S/genética , Via Secretória
3.
Genomics ; 111(6): 1514-1516, 2019 12.
Artigo em Inglês | MEDLINE | ID: mdl-30316740

RESUMO

The secretome refers to all the Excreted/Secreted (ES) proteins of a cell, and these are involved in critical biological processes, such as cell-cell communication, and host immune responses. Recently, we introduced the Abundance of Antigenic Aegions (AAR) value to assess the protein antigenic density and to evaluate the antigenic potential of secretomes. Here, to facilitate the AAR calculation, we implemented it as a user-friendly webserver. We extended the webserver capabilities implementing a sequence-based tool for searching homologous proteins across secretomes, including experimental and predicted secretomes of Mycobacterium tuberculosis and Taenia solium. Additionally, twelve secretomes of helminths, five of Mycobacterium and two of Gram-negative bacteria are also available. Our webserver is a useful tool for researchers working on immunoinformatics and reverse vaccinology, aiming at discovering candidate proteins for new vaccines or diagnostic tests, and it can be used to prioritize the experimental analysis of proteins for druggability assays. The Secret-AAR web server is available at http://microbiomics.ibt.unam.mx/tools/aar/.


Assuntos
Antígenos de Bactérias/imunologia , Antígenos de Helmintos/imunologia , Proteínas de Bactérias/imunologia , Proteínas de Helminto/imunologia , Mycobacterium tuberculosis/imunologia , Software , Taenia solium/imunologia , Animais , Internet , Mycobacterium tuberculosis/metabolismo , Proteoma/análise , Proteoma/imunologia , Taenia solium/metabolismo
4.
Front Neurosci ; 11: 658, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-29217998

RESUMO

Parkinson's disease (PD) is one of the most prevalent neurodegenerative disease displaying negative impacts on both the health and social ability of patients and considerable economical costs. The classical anti-parkinsonian drugs based in dopaminergic replacement are the standard treatment, but several motor side effects emerge during long-term use. This mini-review presents the rationale to several efforts from pre-clinical and clinical studies using adenosine receptor antagonists as a non-dopaminergic therapy. As several studies have indicated that the monotherapy with adenosine receptor antagonists reaches limited efficacy, the usage as a co-adjuvant appeared to be a promising strategy. The formulation of multi-targeted drugs, using adenosine receptor antagonists and other neurotransmitter systems than the dopaminergic one as targets, have been receiving attention since Parkinson's disease presents a complex biological impact. While pharmacological approaches to cure or ameliorate the conditions of PD are the leading strategy in this area, emerging positive aspects have arisen from non-pharmacological approaches and adenosine function inhibition appears to improve both strategies.

5.
Front Microbiol ; 8: 128, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28223967

RESUMO

The Excreted/Secreted (ES) proteins play important roles during Mycobacterium tuberculosis invasion, virulence, and survival inside the host and they are a major source of immunogenic proteins. However, the molecular complexity of the bacillus cell wall has made difficult the experimental isolation of the total bacterial ES proteins. Here, we reported the genomes of two Beijing genotype M. tuberculosis clinical isolates obtained from patients from Vietnam (isolate 46) and South Africa (isolate 48). We developed a bioinformatics pipeline to predict their secretomes and observed that ~12% of the genome-encoded proteins are ES, being PE, PE-PGRS, and PPE the most abundant protein domains. Additionally, the Gene Ontology, KEGG pathways and Enzyme Classes annotations supported the expected functions for the secretomes. The ~70% of an experimental secretome compiled from literature was contained in our predicted secretomes, while only the 34-41% of the experimental secretome was contained in the two previously reported secretomes for H37Rv. These results suggest that our bioinformatics pipeline is better to predict a more complete set of ES proteins in M. tuberculosis genomes. The predicted ES proteins showed a significant higher antigenic density measured by Abundance of Antigenic Regions (AAR) value than the non-ES proteins and also compared to random constructed secretomes. Additionally, we predicted the secretomes for H37Rv, H37Ra, and two M. bovis BCG genomes. The antigenic density for BGG and for isolates 46 and 48 was higher than the observed for H37Rv and H37Ra secretomes. In addition, two sets of immunogenic proteins previously reported in patients with tuberculosis also showed a high antigenic density. Interestingly, mice infected with isolate 46 showed a significant lower survival rate than the ones infected with isolate 48 and both survival rates were lower than the one previously reported for the H37Rv in the same murine model. Finally, after a druggability analysis of the secretomes, we found potential drug targets such as cytochrome P450, thiol peroxidase, the Ag85C, and Ribonucleoside Reductase in the secreted proteins that could be used as drug targets for novel treatments against Tuberculosis.

6.
J Contemp Dent Pract ; 17(1): 32-7, 2016 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-27084860

RESUMO

AIM: By using the finite element method (FEM), this study aimed to evaluate the effect of different corticotomy formats on the distribution and magnitude of stress on the periodontal ligament (PDL) during retraction of the maxillary canine. MATERIALS AND METHODS: A geometric model of the left hemi-jaw was created from computed tomography scan images of a dry human skull and loads were administered during distalization movement of the canine. Three trials were performed: (1) without corticotomy, (2) box-shaped corticotomy and perforations in the cortical bone of the canine (CVC) and (3) CVC and circular-shaped corticotomy in the cortical bone of the edentulous space of the first premolar. RESULTS: There was no difference in stress distribution among the different corticotomy formats. CONCLUSION: Different corticotomy formats used to accelerate orthodontic tooth movement did not affect stress distribution in the PDL during canine retraction. CLINICAL SIGNIFICANCE: From a mechanical perspective, the present study showed that the stress distribution on the PDL during canine retraction was similar in all the corticotomy formats. When using the Andrews T2 bracket, the PDL presented the highest levels of stress in the middle third of the PDL, suggesting that the force was near the center of resistance. Also, as bone weakening by corticotomies did not influence stress distribution, the surgical procedure could be simplified to a less aggressive one, focusing more on inflammatory cellular stimulation than on bone resistance. A simpler surgical act could also be performed by most orthodontists in their practices, enhancing postoperative response and reducing patient costs.


Assuntos
Dente Canino , Análise de Elementos Finitos , Maxila , Ligamento Periodontal , Humanos , Modelos Anatômicos , Técnicas de Movimentação Dentária
7.
J Contemp Dent Pract ; 15(6): 770-4, 2014 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-25825106

RESUMO

AIM: This clinical report presents a new method for retrieving separated instruments from the root canal with minimally invasive procedures. BACKGROUND: The presence of separated instrument in root canal may interfere in the endodontic treatment prognosis. There are several recommended methods to retrieve separated instruments, but some are difficult in clinically practice. CASE REPORT: This study describes two cases of separated instrument removal from the root canal using a stainless-steel prepared needle associated with a K-file. Case 1 presented a fractured gutta-percha condenser within the mandibular second premolar, it was separated during incorrect intracanal medication calcium hydroxide placement. Case 2 had a fractured sewing needle within the upper central incisor that the patient used to remove food debris from the root canal. After cervical preparation, the fractured instruments were fitted inside a prepared needle and then an endodontic instrument (#25 K-file) was adapted with clockwise turning motion between the needle inner wall and the fragment. CONCLUSION: The endodontic or atypical nonendodontic separated instrument may be easily pull on of the root canal using a single and low cost device. CLINICAL SIGNIFICANCE: The methods for retrieving separated instruments from root canal are difficult and destructive procedures. The present case describes a simple method to solve this problem.


Assuntos
Cavidade Pulpar/patologia , Corpos Estranhos/terapia , Preparo de Canal Radicular/instrumentação , Hidróxido de Cálcio/administração & dosagem , Criança , Falha de Equipamento , Humanos , Masculino , Pessoa de Meia-Idade , Agulhas , Retratamento , Irrigantes do Canal Radicular/administração & dosagem , Aço Inoxidável/química
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA