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Molecular investigation of bacterial communities: Data from two frequently used surfaces in the Sao Paulo Institute of Tropical Medicine.

ABSTRACT: This article contains data on the bacterial population of two frequently used surfaces in the São Paulo Institute of Tropical Medicine (ITM) using the Illumina sequencing for massive parallel investigation of the bacterial 16S ribosomal RNA gene. Surface samples were obtained from restroom surfaces and the fingerprint door clock system. Mothur package and Shannon-ace-table.pl software programs (Chunlab Inc.: Seoul, Korea) were used to compute the diversity indices of bacterial community. The sequencing data from both surfaces have been uploaded to Zenodo: http://dx.doi.org/10.5281/zenodo.47709.

SUBMITTER: Pereira da Fonseca TA

PROVIDER: S-EPMC4908281 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature

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Molecular investigation of bacterial communities: Data from two frequently used surfaces in the São Paulo Institute of Tropical Medicine.

Pereira da Fonseca Tairacan Augusto TA Pessôa Rodrigo R Sanabani Sabri Saeed SS

Data in brief 20160602

This article contains data on the bacterial population of two frequently used surfaces in the São Paulo Institute of Tropical Medicine (ITM) using the Illumina sequencing for massive parallel investigation of the bacterial 16S ribosomal RNA gene. Surface samples were obtained from restroom surfaces and the fingerprint door clock system. Mothur package and Shannon-ace-table.pl software programs (Chunlab Inc.: Seoul, Korea) were used to compute the diversity indices of bacterial community. The seq ...[more]

PMID: 27331120

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Project description:BackgroundSeveral species of protozoa cause acute or chronic gastroenteritis in humans, worldwide. The burden of disease is particularly high among children living in developing areas of the world, where transmission is favored by lower hygienic standards and scarce availability of safe water. However, asymptomatic infection and polyparasitism are also commonly observed in poor settings. Here, we investigated the prevalence of intestinal protozoa in two small fishing villages, Porto Said (PS) and Santa Maria da Serra (SM), situated along the river Tietê in the State of São Paolo, Brazil. The villages lack basic public infrastructure and services, such as roads, public water supply, electricity and public health services.MethodsMultiple fecal samples were collected from 88 individuals in PS and from 38 individuals in SM, who were asymptomatic at the time of sampling and had no recent history of diarrheal disease. To gain insights into potential transmission routes, 49 dog fecal samples (38 from PS and 11 from SM) and 28 river water samples were also collected. All samples were tested by microscopy and PCR was used to genotype Giardia duodenalis, Blastocystis sp., Dientamoeba fragilis and Cryptosporidium spp.ResultsBy molecular methods, the most common human parasite was Blastocystis sp. (prevalence, 45% in PS and 71% in SM), followed by D. fragilis (13.6% in PS, and 18.4% in SM) and G. duodenalis (18.2% in PS and 7.9% in SM); Cryptosporidium spp. were not detected. Sequence analysis revealed large genetic variation among Blastocystis samples, with subtypes (STs) 1 and 3 being predominant, and with the notable absence of ST4. Among G. duodenalis samples, assemblages A and B were detected in humans, whereas assemblages A, C and D were found in dogs. Finally, all D. fragilis samples from humans were genotype 1. A single dog was found infected with Cryptosporidium canis. River water samples were negative for the investigated parasites.ConclusionsThis study showed a high carriage of intestinal parasites in asymptomatic individuals from two poor Brazilian villages, and highlighted a large genetic variability of Blastocystis spp. and G. duodenalis.

Project description:To estimate the prevalence of one month psychotropic drug use in São Paulo, Brazil, and to assess the gap treatment between the presence of mental disorders and psychotropic drug users.A probabilistic sample of non-institutionalized individuals from the general population of São Paulo (n = 2336; turnout: 84.5%) who were 15 years or older were interviewed by a trained research staff, applying the Composite International Diagnostic Interview 2.1 (CIDI WHO) (depression, anxiety-phobia, OCD\PTSD, alcoholism sections), and an inventory investigating psychotropic drug use during the 12-month and one-month periods immediately preceding the interview. Logistic models were fitted to investigate associations between psychotropic drug use as well as socio-demographic and clinical variables.The one month prevalence of psychotropic drug use in São Paulo was 5.89%, the most commonly used drugs were antidepressants (3.15%) and tranquilizers (2.67%). A higher consumption of psychotropic drugs (overall, antidepressants and tranquilizers) was observed among women (OR:2.42), older individuals (OR:1.04), individuals with higher levels of formal education (1.06), and individuals with a family (OR:2.29) or personal history of mental illness (OR:3.27). The main psychotropic drug prescribers were psychiatrists (41%), followed by general practitioners (30%); 60% of psychotropic drugs were obtained through a government-run dispensing program. Most individuals who obtained a positive diagnosis on the CIDI 2.1 during the previous month were not using psychotropic medication (85%). Among individuals with a diagnosis of moderate to severe depression, 67.5% were not on any pharmacological treatment.There is a change in the type of psychotropic more often used in São Paulo, from benzodiazepines to antidepressants, this event is observed in different cultures. The prevalence of use is similar to other developing countries. Most of the patients presenting a psychiatric illness in the month prior to testing were not receiving any sort of psychiatric medication. This may be explained by a failure to identify cases in primary care, which could be improved (and access to treatment could be facilitated) if professionals received more specialized training in managing cases with mental health problems.

Dataset Information

Molecular investigation of bacterial communities: Data from two frequently used surfaces in the Sao Paulo Institute of Tropical Medicine.

Publications

Molecular investigation of bacterial communities: Data from two frequently used surfaces in the São Paulo Institute of Tropical Medicine.

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