245 research outputs found
Das RECORD-Statement zum Berichten von Beobachtungsstudien, die routinemäßig gesammelte Gesundheitsdaten verwenden [The REporting of studies Conducted using Observational Routinely-collected health Data (RECORD) statement]
Routinely collected health data, obtained for administrative and clinical purposes without specific a priori research goals, are increasingly used for research. The rapid evolution and availability of these data have revealed issues not addressed by existing reporting guidelines, such as Strengthening the Reporting of Observational Studies in Epidemiology (STROBE). The REporting of studies Conducted using Observational Routinely collected health Data (RECORD) statement was created to fill these gaps. RECORD was created as an extension to the STROBE statement to address reporting items specific to observational studies using routinely collected health data. RECORD consists of a checklist of 13 items related to the title, abstract, introduction, methods, results, and discussion section of articles, and other information required for inclusion in such research reports. This document contains the checklist as well as explanatory and elaboration information to enhance the use of the checklist. Examples of good reporting for each RECORD checklist item are also included. This document, as well as the accompanying website and message board (http://www.record-statement.org), will improve the implementation and understanding of RECORD. By implementing RECORD, authors, journals editors, and peer reviewers can enhance transparency of research reporting
Produção de pimenteira-do-reino micorrizada e adicionada de casca de caranguejo em condições de campo.
bitstream/item/19008/1/Doc-271.pdfVersão eletrônica. 1ª impressão: 2009
Geração de tecnologias para o manejo sustentável de flores tropicais e temperadas no Nordeste Paraense.
bitstream/item/27999/1/Doc332.pdfDisponível também on-line
The microaerophilic microbiota of de-novo paediatric inflammatory bowel disease: the BISCUIT study
<p>Introduction: Children presenting for the first time with inflammatory bowel disease (IBD) offer a unique opportunity to study aetiological agents before the confounders of treatment. Microaerophilic bacteria can exploit the ecological niche of the intestinal epithelium; Helicobacter and Campylobacter are previously implicated in IBD pathogenesis. We set out to study these and other microaerophilic bacteria in de-novo paediatric IBD.</p>
<p>Patients and Methods: 100 children undergoing colonoscopy were recruited including 44 treatment naïve de-novo IBD patients and 42 with normal colons. Colonic biopsies were subjected to microaerophilic culture with Gram-negative isolates then identified by sequencing. Biopsies were also PCR screened for the specific microaerophilic bacterial groups: Helicobacteraceae, Campylobacteraceae and Sutterella wadsworthensis.</p>
<p>Results: 129 Gram-negative microaerophilic bacterial isolates were identified from 10 genera. The most frequently cultured was S. wadsworthensis (32 distinct isolates). Unusual Campylobacter were isolated from 8 subjects (including 3 C. concisus, 1 C. curvus, 1 C. lari, 1 C. rectus, 3 C. showae). No Helicobacter were cultured. When comparing IBD vs. normal colon control by PCR the prevalence figures were not significantly different (Helicobacter 11% vs. 12%, p = 1.00; Campylobacter 75% vs. 76%, p = 1.00; S. wadsworthensis 82% vs. 71%, p = 0.312).</p>
<p>Conclusions: This study offers a comprehensive overview of the microaerophilic microbiota of the paediatric colon including at IBD onset. Campylobacter appear to be surprisingly common, are not more strongly associated with IBD and can be isolated from around 8% of paediatric colonic biopsies. S. wadsworthensis appears to be a common commensal. Helicobacter species are relatively rare in the paediatric colon.</p>
The reporting of studies conducted using observational routinely collected health data statement for pharmacoepidemiology (RECORD-PE).
In pharmacoepidemiology, routinely
collected data from electronic health
records (including primary care
databases, registries, and
administrative healthcare claims) are a
resource for research evaluating the
real world effectiveness and safety of
medicines. Currently available
guidelines for the reporting of research
using non-randomised, routinely
collected data—specifically the
REporting of studies Conducted using
Observational Routinely collected
health Data (RECORD) and the
Strengthening the Reporting of
OBservational studies in Epidemiology
(STROBE) statements—do not
capture the complexity of
pharmacoepidemiological research.
We have therefore extended the
RECORD statement to include
reporting guidelines specific to
pharmacoepidemiological research
(RECORD-PE). This article includes the
RECORD-PE checklist (also available on
www.record-statement.org) and
explains each checklist item with
examples of good reporting. We
anticipate that increasing use of the
RECORD-PE guidelines by researchers
and endorsement and adherence by
journal editors will improve the
standards of reporting of
pharmacoepidemiological research
undertaken using routinely collected
data. This improved transparency will
benefit the research community,
patient care, and ultimately improve
public health
Potencial de biocontrole de Rhizoctonia solani do feijão-caupi.
O objetivo foi avaliar o potencial de nove isolados de Trichoderma spp. no biocontrole in vitro de Rhizoctonia solani, agente etiológico da mela em feijão-caupi. O patógeno e o antagonista foram confrontados em placas de Petri (Ø = 90 mm) contendo o meio de cultura BDA. Foram medidos diariamente o crescimento micelial do antagonista e do patógeno e determinados o Índice de Velocidade de Crescimento Micelial (IVCM) e o Percentual de Inibição do Crescimento Radial (PICR) médio e diário da colônia de R. solani, em relação à testemunha. O delineamento experimental foi inteiramente ao acaso, com dez tratamentos, incluindo a testemunha, em cinco repetições. Os dados foram submetidos à análise de variância aplicando-se o teste F (p-valor≤0,05) e o teste de Scott-Knott (pvalor≤ 0,05), utilizando-se o programa SISVAR, versão 5.6. Os resultados mostraram que 33% dos isolados de Trichoderma spp. (T41, T51 e T63) apresentaram maior potencial de controle in vitro de R. solani, reduzindo em 40% o IVCM da colônia do patógeno. O isolado T41 obteve maior PICR médio e os isolados T41, T51 e T63 provocaram o maior PICR no primeiro dia de avaliação. O isolado T41 provocou o menor IVCR e o maior PICR médio e diário, apresentando-se desta forma, com agente de biocontrole potencial de R. solan
Diagnostic Delay Is Associated with Complicated Disease and Growth Impairment in Paediatric Crohn\u27s Disease
Background: Paediatric data on the association between diagnostic delay and inflammatory bowel disease [IBD] complications are lacking. We aimed to determine the effect of diagnostic delay on stricturing/fistulising complications, surgery, and growth impairment in a large paediatric cohort, and to identify predictors of diagnostic delay. Methods: We conducted a national, prospective, multicentre IBD inception cohort study including 1399 children. Diagnostic delay was defined as time from symptom onset to diagnosis \u3e75th percentile. Multivariable proportional hazards [PH] regression was used to examine the association between diagnostic delay and stricturing/fistulising complications and surgery, and multivariable linear regression to examine the association between diagnostic delay and growth. Predictors of diagnostic delay were identified using Cox PH regression. Results: Overall (64% Crohn\u27s disease [CD]; 36% ulcerative colitis/IBD unclassified [UC/IBD-U]; 57% male]), median time to diagnosis was 4.2 (interquartile range [IQR] 2.0-9.2) months. For the overall cohort, diagnostic delay was \u3e9.2 months; in CD, \u3e10.8 months and in UC/IBD-U, \u3e6.6 months. In CD, diagnostic delay was associated with a 2.5-fold higher rate of strictures/internal fistulae (hazard ratio [HR] 2.53, 95% confidence interval [CI] 1.41-4.56). Every additional month of diagnostic delay was associated with a decrease in height-for-age z-score of 0.013 standard deviations [95% CI 0.005-0.021]. Associations persisted after adjusting for disease location and therapy. No independent association was observed between diagnostic delay and surgery in CD or UC/IBD-U. Diagnostic delay was more common in CD, particularly small bowel CD. Abdominal pain, including isolated abdominal pain in CD, was associated with diagnostic delay. Conclusions: Diagnostic delay represents a risk factor for stricturing/internal fistulising complications and growth impairment in paediatric CD
Surgical rates for Crohn’s Disease are decreasing: a population-based time trend analysis and validation study
Objectives:
Temporal changes for intestinal resections for Crohn’s disease (CD) are controversial. We validated administrative database codes for CD diagnosis and surgery in hospitalized patients and then evaluated temporal trends in CD surgical resection rates.
Methods:
First, we validated International Classification of Disease (ICD)-10-CM coding for CD diagnosis in hospitalized patients and Canadian Classification of Health Intervention coding for surgical resections. Second, we used these validated codes to conduct population-based surveillance between fiscal years 2002 and 2010 to identify adult CD patients undergoing intestinal resection (n=981). Annual surgical rate was calculated by dividing incident surgeries by estimated CD prevalence. Time trend analysis was performed and annual percent change (APC) with 95% confidence intervals (CI) in surgical resection rates were calculated using a generalized linear model assuming a Poisson distribution.
Results:
In the validation cohort, 101/104 (97.1%) patients undergoing surgery and 191/200 (95.5%) patients admitted without surgery were confirmed to have CD on chart review. Among the 116 administrative database codes for surgical resection, 97.4% were confirmed intestinal resections on chart review. From 2002 to 2010, the overall CD surgical resection rate was 3.8 resections per 100 person-years. During the study period, rate of surgery decreased by 3.5% per year (95% CI: -1.1%, -5.8%), driven by decreasing emergent operations (-10.1% per year [95% CI: -13.4%, -6.7%]) whereas elective surgeries increased by 3.7% per year (95% CI: 0.1%, 7.3%).
Conclusions:
Overall surgical resection rates in CD are decreasing, but a paradigm shift has occurred whereby elective operations are now more commonly performed than emergent surgeries
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