278 research outputs found
Estudio sobre el perfil del alumnado de Educación Social
En este artículo se realiza una aproximación al perfil del alumnado
de Educación Social con el fin de optimizar el diseño y elaboración
del programa formativo de la Titulación, ajustándolo a
sus características. Con el estudio realizado se indaga en las peculiaridades
de los estudiantes relacionadas con la edad, sexo,
procedencia geográfica, nivel socioeconómico familiar, actividad
laboral y/o de voluntariado, preferencias de ocio y tiempo libre.
La investigación desarrollada es de tipo descriptivo-interpretativo
e intenta profundizar en la realidad educativa analizada de
forma crítico-reflexiva, tratando de favorecer el compromiso de
los profesionales a través de la transformación y mejora de la
práctica
Efecto de tratamiento de claras sobre parámetros dasométricos de robledables iberoatlánticos (N.O. de España)
11 páginas, 4 tablas, 3 figuras -- Trabajo presentado en el 5º Congreso Forestal Español que se celebró del 21 y 25 de septiembre de 2009 en Ávila, bajo el lema “Montes y sociedad: saber qué hacer”.Se han instalado 3 parcelas de claras en masas naturales regulares de roble (Quercus robur) en 3 localidades gallegas situadas entre los 400 y 700 m de altura, entre los años 1998-2000. Las parcelas son de calidad de estación media. Los tratamientos consistieron en la eliminación del 15, 35 y 55% del área basimétrica, más un tratamiento control (0%). Se hicieron las mediciones correspondientes pre y post-clara, con periodicidad media de 3 años. Se presenta la evolución de la distribución de clases diamétricas, así como diversos parámetros de masa. Los tratamientos tienen un efecto diferente en las 3 parcelas, notándose más en las parcelas más jóvenes (Cotobade y Labio), mientras que en la de más edad (Boimente) éste imperceptible. Hemos medido incremento de diámetro de 3 a 6 mm.año-1, de altura de 40 cm.año-1, siendo estos mayores en las parcelas con mayor peso de clara. Con el paso del tiempo después de la clara, se observa un incremento gradual en el número de píes de las clases diamétricas mayores.Este trabajo fue parcialmente financiado por los proyectos INIA SC98-062 y RTA05-0218-00-00, y PGIDT00MAM50201PR de la Secretaria Xeral de I+D de la Xunta de Galicia .Peer reviewe
Bioinformatics approach to mRNA markers discovery for detection of circulating tumor cells in patients with gastrointestinal cancer
[Abstract] Background: Detection of tumor cells in the blood, or minimal deposits in distant organs as bone marrow, could be important to identify cancer patients at high risk of relapse or disease progression. Quantitative polymerase chain reaction (PCR) amplification of tissue or tumor selective mRNA is the most powerful tool for the detection of this circulating or occult metastatic cells. Our study aims to identify novel gastrointestinal cancer-specific markers for circulating tumor cell detection. Method: Phase I preclinical study was performed by means of computational tools for expression analysis. In silico data were used to identify and prioritize molecular markers highly expressed in gastrointestinal cancers but absent in hematopoietic-derived libraries. Selected genes were evaluated by means of qRT-PCR in gastrointestinal cancer and hematopoietic cell-lines, normal human bone marrows and bloods, tumor tissue, and blood from cancer patients. Results: Novel and known mRNA markers for circulating tumor cell detection in gastrointestinal cancer have been identified. Among all the genes assessed, PKP3, AGR2, S100A16, S100A6, LGALS4, and CLDN3 were selected and assays based on blood qRT-PCR were developed. Reliably qRT-PCR assays for the novel targets plakophilin 3 (PKP3) and anterior gradient-2 (AGR2) to identify blood-borne cells in cancer patients were developed. Conclusions: Novel and known gastrointestinal-specific mRNA markers for circulating tumor cells have been identified through in silico analysis and validated in clinical material. qRT-PCR assay targeted to PKP3 and AGR2 mRNAs might be helpful to detect circulating tumor cells in patients with gastrointestinal cancer
Subsidized pharmacological treatment for smoking cessation by the Spanish public health system
INTRODUCTION Research has shown that financing drug therapy
increases smoking abstinence rates, although most of these
studies have been carried out in the private healthcare setting.
The aim of this work is to assess the effect of subsidized
pharmacological treatment on smoking cessation rates by the
Spanish public healthcare system.
METHODS A pragmatic, randomized, clinical trial was performed
by clusters. Randomization unit was the primary healthcare
center and the analysis unit was the patient. Smokers
consuming ≥10 cigarettes/day were randomly assigned to an
intervention group that received financed pharmacological
treatment or to a control group that followed usual care. The
main outcome was self-reported or CO-confirmed continuous
abstinence at 12 months. The main outcome, continuous
abstinence rates (%), were compared between groups at 12
months post-intervention. A model was adjusted using mixedeffect
logistic regression.
RESULTS A total of 1154 patients were included from 23
healthcare centers. In the intention-to-treat analysis, selfreported
abstinence after 12 months in the control and
intervention groups, respectively, was 9.6% (37/387) and
15.4% (118/767) (gender-adjusted OR=1.75; 95% CI: 1.1–
2.8); for CO-confirmed abstinence the corresponding values
were 3.1% (12/387) and 6.4% (49/767) (gender-adjusted
OR=1.72; 95% CI: 0.7–4.0). Pharmacological treatment use was
35.1% (136/387) in the control group, and 58.3% (447/767)
in the intervention group (adjusted OR=4.25; 95% CI: 1.8–9.9)
CONCLUSIONS Subsidizing pharmacological treatment for smoking
cessation increases self-reported or CO-confirmed abstinence
rates under realistic conditions in the primary care setting of
the Spanish public health systemThis trial was funded by the Fondo de Investigaciones Sanitarias
(FIS) del Instituto de Salud Carlos III (ISCIII), the European Regional
Development Fund (ERDF) under registration number 07528, as well
as the 2016 and 2017 calls for grants for translations and publishing
by the Fundación para la Investigación e Innovación Biosanitaria en
Atención Primaria (FIIBA
Evaluation of Plakophilin-3 mRNA as a biomarker for detection of circulating tumor cells in gastrointestinal cancer patients
[Abstract] Background: This study aims to assess Plakophilin-3 (PKP3) as a surrogate biomarker of circulating tumor cells in patients with gastrointestinal cancer.
Methods: The primary aim is to estimate the diagnostic accuracy of PKP3 real-time reverse transcriptase-PCR in blood. Receiver operating characteristic curves were constructed. Correlations between the blood PKP3 levels and the clinicopathologic features of the study subjects were analyzed. Logistic regression was used to predict outcomes based on PKP3.
Results: Sixty-four patients with gastrointestinal cancer and 23 controls were included. The mean relative PKP3 mRNA expression was 48.45 in cancer patients and 2.8 in controls (P < 0.0001). Comparing the PKP3 levels in patients and controls, the area under the curve was 0.852 (95% confidence interval, 0.76-0.94; P < 0.0001) in receiver operating characteristic analysis. A higher blood level of PKP3 mRNA was associated with a more advanced stage (P = 0.025), pT3-4 tumors (P = 0.028), metastasis (P = 0.021), and residual (R2) disease (P = 0.037). Higher PKP3 mRNA was associated with the risk of cancer progression and death (odds ratio, 3.875; 95% confidence interval, 1.781-8.430; P = 0.001).
Conclusions: Increased PKP3 mRNA was detected in the blood of gastrointestinal cancer patients. Significant correlations were found with advanced stage, pT3-4, metastatic disease, and the residual disease status. PKP3 mRNA in blood was associated with the risk of cancer progression and death.Rede Galega de Investigación sobre Cancro Colorrectal; Grant 509025250
A Spanish-language patient safety questionnaire to measure medical and nursing students' attitudes and knowledge.
[EN] OBJECTIVE:
To design and validate a questionnaire for assessing attitudes and knowledge about patient safety using a sample of medical and nursing students undergoing clinical training in Spain and four countries in Latin America.
METHODS: In this cross-sectional study, a literature review was carried out and total of 786 medical and nursing students were surveyed at eight universities from five countries (Chile, Colombia, El Salvador, Guatemala, and Spain) to develop and refine a Spanish-language questionnaire on knowledge and attitudes about patient safety. The scope of the questionnaire was based on five dimensions (factors) presented in studies related to patient safety culture found in PubMed and Scopus. Based on the five factors, 25 reactive items were developed. Composite reliability indexes and Cronbach's alpha statistics were estimated for each factor, and confirmatory factor analysis was conducted to assess validity. After a pilot test, the questionnaire was refined using confirmatory models, maximum-likelihood estimation, and the variance-covariance matrix (as input). Multiple linear regression models were used to confirm external validity, considering variables related to patient safety culture as dependent variables and the five factors as independent variables. RESULTS: The final instrument was a structured five-point Likert self-administered survey (the "Latino Student Patient Safety Questionnaire") consisting of 21 items grouped into five factors. Compound reliability indexes (Cronbach's alpha statistic) calculated for the five factors were about 0.7 or higher. The results of the multiple linear regression analyses indicated good model fit (goodness-of-fit index: 0.9). Item-total correlations were higher than 0.3 in all cases. The convergent-discriminant validity was adequate. CONCLUSIONS:
The questionnaire designed and validated in this study assesses nursing and medical students' attitudes and knowledge about patient safety. This instrument could be used to indirectly evaluate whether or not students in health disciplines are acquiring and thus likely to put into practice the professional skills currently considered most appropriate for patient safety
Circulating miR-200c as a diagnostic and prognostic biomarker for gastric cancer
[Abstract]
Background. MicroRNAs are aberrantly expressed and correlate with tumourigenesis and the progression of solid tumours. The miR-200 family determines the epithelial phenotype of cancer cells and regulates invasiveness and migration. Thus, we hypothesised that the quantitative detection of the miR-200 family as epithelial-specific microRNAs in the blood could be a useful clinical biomarker for gastric cancer (GC).
Methods. We initially validated the expression levels of miR-200a, 200b, 200c and 141 in GC cell lines (n = 2) and blood from healthy controls (n = 19) using real-time quantitative reverse transcription PCR (qRT-PCR). The microarray expression profiles of the miR-200 family in 160 paired samples of non-tumour gastric mucosae and GC were downloaded through ArrayExpress and analysed. MiR-200c was selected for clinical validation. The qRT-PCR prospective assessment of miR-200c was performed using 67 blood samples (52 stage I-IV GC patients and 15 controls); the area under the receiver operating characteristic curve (AUC-ROC) was estimated. The Kaplan-Meier and Breslow-Wilcoxon tests were used to assess the correlation of miR-200c with overall and progression-free survival (OS and PFS). Multivariate analyses were performed using the Cox model.
Results. The miR-200c blood expression levels in GC patients were significantly higher than in normal controls (p = 0.018). The AUC-ROC was 0.715 (p = 0.012). The sensitivity, specificity and accuracy rates of 65.4%, 100% and 73.1%, respectively, were observed. The levels of miR-200c in the blood above the cutoff defined by the ROC curve was found in 17.6% of stage I-II GC patients, 20.6% of stage III patients and 67.7% of stage IV patients (p < 0.001). The miR-200c expression levels were not associated with clinical or pathological characteristics or recent surgical procedures. There was a correlation (p = 0.016) with the number of lymph node metastases and the increased expression levels of miR-200c in blood were significantly associated with a poor OS (median OS, 9 vs 24 months; p = 0.016) and PFS (median PFS, 4 vs 11 months; p = 0.044). Multivariate analyses confirmed that the upregulation of miR-200c in the blood was associated with OS (HR = 2.24; p = 0.028) and PFS (HR = 2.27; p = 0.028), independent of clinical covariates.
Conclusions. These data suggest that increased miR-200c levels are detected in the blood of gastric cancer patients. MiR-200c has the potential to be a predictor of progression and survival.Instituto de Salud Carlos III; PI061541Xunta de Galicia; PS08/7
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