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Please use this identifier to cite or link to this item: http://hdl.handle.net/10400.18/568

Title: Facts related to the collection of biological samples in the National Health Examination Survey - Portuguese Component of the European Health Examination Survey
Authors: Silva, Marta Barreto da
Francisco, Vânia
Rasteiro, Paula
Sousa, Eduardo
Vicente, Astrid
Bourbon, Mafalda
Martins, Fátima
Seixas, Maria Teresa
Fernandes, Aida
Beleza, Álvaro
Mendonça, Francisco
Gil, Ana Paula
Dias, Carlos Matias
Keywords: Evolutionary and Population Genetics
Gene Environment Interaction
Genetic Epidemiology
Population Genetics
Public Health
Population Structure
Estados de Saúde e de Doença
Doenças Cardio e Cérebro-vasculares
Issue Date: 13-Oct-2011
Publisher: Instituto Nacional de Saúde Doutor Ricardo Jorge, IP
Abstract: The objective of the National Health Examination Survey (NHES), which corresponds to the Portuguese component of the European Health Examination Survey (EHES), is to collect health data, related risk factors and biological samples of the Portuguese population, using the EHES recommended methodology. These surveys involve an interview, clinical and physical measurements and blood collection. In this context, we herein describe the pilot study performed in S. Brás de Alportel in the Algarve region. For this pilot study, we have recruited 221 individuals (95 males and 126 females), between 25 and 91 years old, who were enrolled in the Health Centre of S. Brás de Alportel (Algarve). For each participant, we have collected 16.5 ml of total blood, in five different Vacutainer® tubes, which was later processed into serum, plasma and DNA. We have performed several biochemical analyses(total cholesterol, LDL,HDL, glucose, tryglicerides, creatinine, ALT, AST, -GT, CRP and iron) and a complete blood count. From the 221 participants in this pilot study, we were able to collect blood to 219 (99.5%). To 185 of these (84.5%) we were able to collect the total amount of blood. The biochemical analyses were performed in all the samples. The total blood count was performed in 103 samples (47%) due to transport constraints. We have also collected DNA from 210 participants (95.9%). We have created a biobank comprising 1847 serum aliquots and 959 plasma aliquots, which have been stored at - 80°C and 210 DNA aliquots which have been stored at 4°C. In conclusion, during this study, we have optimized the logistics and procedures to perform the large scale study for the NHES and EHES. In addition, we have created a biobank comprising detailed questionnaire data, physical and clinical data and biological samples from a representative sample of S. Brás de Alportel in Algarve, Portugal. This biobank will allow us to perform future studies, including the determination of the prevalence of gene variants of public health interest, the characterization of gene-environment interactions in the development of chronic diseases and the genetic structure of the Portuguese population. The success rate, the quality of the data and of the biological samples was high and comparable to similar studies.
Description: Abstrat disponível em: http://www.ichg2011.org/cgi-bin/showdetail.pl?absno=11013
Peer Reviewed: yes
URI: http://hdl.handle.net/10400.18/568
Appears in Collections:DEP - Posters/abstracts em congressos internacionais
DPSPDNT - Posters/abstracts em congressos internacionais

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