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1.
J Med Virol ; 92(8): 1239-1245, 2020 08.
Artigo em Inglês | MEDLINE | ID: mdl-31746475

RESUMO

The aim is to investigate the prevalence, risk factors, and hepatitis C virus (HCV) genotypes/subtypes among crack users in-treatment in Central Brazil. A cross-sectional survey in which 600 in-treatment crack users were interviewed and tested for anti-HCV Ab by enzyme-linked immunosorbent assay was conducted between August 2012 and April 2013. Anti-HCV-positive samples were also submitted for HCV RNA detection by polymerase chain reaction. Positive HCV RNA samples were genotyped by direct sequencing analysis of the NS5B region of the viral genome, followed by phylogenetic analysis. Of the total, 3.7% (95.0% CI, 2.4%-5.6%) were anti-HCV positive. Age over 40 years and history of injecting drugs were risk factors for HCV, while snorting cocaine was a protector variable. HCV RNA was detected in 14 of 22 anti-HCV-positive samples, and the genotypes 1 (n = 10) and 3 (n = 2), subtypes 1a (n = 7), 1b (n = 3), and 3a (n = 2) were identified. The HCV prevalence found among crack users is almost threefold that observed in the general population in Brazil supporting that this population is at higher risk for HCV. The findings of cocaine insufflation as a protective behavior for HCV infection in this population should be explored.


Assuntos
Cocaína Crack , Hepacivirus/genética , Hepatite C/epidemiologia , Abuso de Substâncias por Via Intravenosa/epidemiologia , Adulto , Brasil/epidemiologia , Estudos Transversais , Feminino , Genótipo , Hepacivirus/classificação , Anticorpos Anti-Hepatite C/sangue , Humanos , Masculino , Filogenia , Prevalência , RNA Viral/genética , Fatores de Risco
2.
J Med Virol ; 90(10): 1651-1657, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-29797609

RESUMO

Independent epidemiology for respective human T-cell lymphotropic virus (HTLV) types 1 and 2 is little known in blood donors in Brazil, where screening for HTLV-1/2 is mandatory at blood banks, but no testing to confirm/differentiate these viruses. Therefore, this study aims to assess the prevalence of HTLV-1 and -2 in a first-time blood donor population in Northeastern Brazil and to carry out molecular characterization of respective isolates. A cross-sectional study was conducted at the State Blood Bank in Piauí. Samples were screened for anti-HTLV-1/2 by enzyme immunoassay, and reactive samples were confirmed using a line immunoassay and polymerase chain reaction (PCR). Of 37 306 blood donors, 47 were anti-HTLV-1/2 reactive by enzyme immunoassay. After confirmed by line immunoassay, 22 were positive for HTLV-1 (0.59 per 1000; 95% CI: 0.38-0.87), 14 were positive for HTLV-2 (0.37 per 1000; 95% CI: 0.21-0.61), 1 was indeterminate, and the remaining donors were negative. The HTLV-1 infection was also confirmed by PCR in all anti-HTLV-1-positive samples, and sequencing classified these isolates as belonging to the Transcontinental (A) subgroup of the Cosmopolitan (1a) subtype. Of 14 anti-HTLV-2-positive samples, 11 were also PCR positive, which belonged to subtype a (HTLV-2a/c). In addition, 38 family members of 5 HTLV-1- and 3 HTLV-2-infected donors were analyzed. Familial transmission of HTLV-1 and -2 was evidenced in 3 families. In conclusion, in Northeastern Brazil, where HTLV-1 and -2 are endemic, counseling blood donor candidates and their families might play a key role in limiting the spread of these viruses.


Assuntos
Doadores de Sangue , Transmissão de Doença Infecciosa , Saúde da Família , Infecções por HTLV-I/epidemiologia , Infecções por HTLV-II/epidemiologia , Vírus Linfotrópico T Tipo 1 Humano/isolamento & purificação , Vírus Linfotrópico T Tipo 2 Humano/isolamento & purificação , Adolescente , Adulto , Idoso , Anticorpos Antivirais/sangue , Brasil , Estudos Transversais , Feminino , Genótipo , Infecções por HTLV-I/transmissão , Infecções por HTLV-II/transmissão , Vírus Linfotrópico T Tipo 1 Humano/classificação , Vírus Linfotrópico T Tipo 1 Humano/genética , Vírus Linfotrópico T Tipo 1 Humano/imunologia , Vírus Linfotrópico T Tipo 2 Humano/classificação , Vírus Linfotrópico T Tipo 2 Humano/genética , Vírus Linfotrópico T Tipo 2 Humano/imunologia , Humanos , Imunoensaio , Masculino , Pessoa de Meia-Idade , Epidemiologia Molecular , Reação em Cadeia da Polimerase , Prevalência , Análise de Sequência de DNA , Adulto Jovem
3.
J Med Virol ; 88(7): 1222-9, 2016 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27061406

RESUMO

Although hepatitis B virus (HBV) and human immunodeficiency virus (HIV) co-infection is common, only few data are available on HBV among HIV patients including occult hepatitis B infection (OBI), regardless of serological markers. This study aims to determine the prevalence of OBI and overall HBV infection, associated factors, HBV genotypes, and surface (S) gene mutations in a population of treatment-naïve HIV-infected patients in Brazil. A cross-sectional study was conducted in treatment-naïve HIV-infected patients in Central Brazil. All samples were tested for HBV serological markers and HBV DNA. Sequence analysis of the S gene and overlapping polymerase gene was preformed. Overall, 25.1% (127/505) of the patients had markers of current or previous HBV infection, which was associated with age over 40 years, history of injection drug use, and homosexual sex. The hepatitis B surface antigen (HBsAg) seroprevalence was 4.9% (25/505). HBV DNA was detected in 39 out of 505 patients: 20 of them were HBsAg-positive and 19 were HBsAg-negative, resulting in an OBI prevalence of 3.8%. Patients with OBI had significantly higher HCV seropositivity rate compared to HBsAg-positive patients. Sequencing of the S gene revealed Y100C, T131N, and D144A mutations. One patient had the M204I and L180M drug-resistance mutations (polymerase). HBV genotypes A (A1, A2), D (D2, D3), and F (F2) were identified. In conclusion, OBI represented almost half of all HBV infections with detectable HBV DNA, suggesting that hepatitis B diagnosis in HIV patients should include in addition to serological markers the detection of HBV DNA.


Assuntos
Coinfecção/epidemiologia , DNA Viral/sangue , Infecções por HIV/complicações , Hepatite B/epidemiologia , Hepatite B/virologia , Adolescente , Adulto , Idoso , Brasil/epidemiologia , Estudos Transversais , Usuários de Drogas , Feminino , Genótipo , Infecções por HIV/tratamento farmacológico , Infecções por HIV/virologia , Hepatite B/diagnóstico , Anticorpos Anti-Hepatite B/sangue , Antígenos de Superfície da Hepatite B/genética , Antígenos de Superfície da Hepatite B/imunologia , Vírus da Hepatite B/genética , Homossexualidade , Humanos , Masculino , Pessoa de Meia-Idade , Mutação , Valor Preditivo dos Testes , Prevalência , Estudos Soroepidemiológicos , Adulto Jovem
4.
Mem Inst Oswaldo Cruz ; 109(1): 118-21, 2014 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-24141955

RESUMO

Human T-cell lymphotropic virus (HTLV) may impact the clinical course of tuberculosis (TB). Both infections are highly endemic in Brazil. The aim of this study was to assess the prevalence of HTLV-1/2 in TB patients in Central-West Brazil and to perform a genetic characterisation of the respective isolates. Of the 402 patients, six (1.49%) were positive for anti-HTLV and five (1.24%; 95% confidence interval: 0.46-3.05) were infected with HTLV-1/2. Genetic characterisation demonstrated that the four HTLV-1 isolates belonged to the Transcontinental subgroup A of the Cosmopolitan subtype a and that the HTLV-2 isolate belonged to subtype a (HTLV-2a/c). The prevalence of HTLV infection observed in this study is higher than that observed in local blood donors and the HTLV-1 and 2 subtypes identified are consistent with those circulating in Brazil.


Assuntos
Deltaretrovirus/genética , Infecções por HTLV-I/epidemiologia , Infecções por HTLV-II/epidemiologia , Vírus Linfotrópico T Tipo 1 Humano/genética , Vírus Linfotrópico T Tipo 2 Humano/genética , Tuberculose Pulmonar/epidemiologia , Tuberculose Pulmonar/virologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticorpos Antivirais/sangue , Brasil/epidemiologia , Criança , Pré-Escolar , Coinfecção/microbiologia , Suscetibilidade a Doenças , Feminino , Infecções por HTLV-I/complicações , Infecções por HTLV-II/complicações , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Tuberculose Pulmonar/complicações , Adulto Jovem
5.
Front Public Health ; 12: 1379237, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38706549

RESUMO

Introduction: Studies on human T-lymphotropic virus 1/2 (HTLV-1/2) infection are scarce in incarcerated population. Therefore, this study estimated the prevalence of HTLV-1/2 infection among prisoners of the major penitentiary complex of Goiás State, Central-West Brazil, comparing it with available data from other Brazilian regions. Methods: A cross-sectional study was conducted with 910 prisoners of the major penitentiary complex in the State of Goiás, Central-West Brazil. All participants were interviewed, and their serum samples were tested for anti-HTLV-1/2 using an enzyme-linked immunosorbent assay (ELISA; Murex HTLV-I + II, DiaSorin, Dartford, UK). Seropositive samples were submitted for confirmation by a line immunoassay (INNO-LIA HTLV I/II, Fujirebio, Europe N.V., Belgium). Results: The majority of participants were males (83.1%), between 25 and 39 years old (56.1%; mean age: 31.98 years), self-reported brown ethnicity (56.2%) and reported 9 years or less of formal education (41.4%). Most reported using non-injectable illicit drugs and various sexual behaviors that present risk for sexually transmitted infections (STIs). The prevalence of anti-HTLV-1/2 was 0.33% (95% CI: 0.07-0.96), HTLV-1 (0.22%) and HTLV-2 (0.11%). The two HTLV-1 seropositive prisoners reported high-risk sexual behaviors, and the HTLV-2 seropositive individual was breastfed during childhood (> 6 months) by her mother and three other women. Conclusion: These data revealed a relatively low seroprevalence of HTLV-1/2 in prisoners in Central-West Brazil, and evidence of HTLV-1 and HTLV-2 circulation in the major penitentiary complex of Goiás State. Given the prevalence of high-risk sexual behaviors, there is a crucial need to intensify education and health programs in prisons to effectively control and prevent HTLV-1/2 and other STIs.


Assuntos
Infecções por HTLV-I , Infecções por HTLV-II , Vírus Linfotrópico T Tipo 1 Humano , Vírus Linfotrópico T Tipo 2 Humano , Prisioneiros , Humanos , Brasil/epidemiologia , Estudos Transversais , Infecções por HTLV-I/epidemiologia , Adulto , Infecções por HTLV-II/epidemiologia , Masculino , Feminino , Prisioneiros/estatística & dados numéricos , Prevalência , Vírus Linfotrópico T Tipo 2 Humano/imunologia , Pessoa de Meia-Idade , Ensaio de Imunoadsorção Enzimática , Adulto Jovem
6.
BMC Genet ; 14: 52, 2013 Jun 13.
Artigo em Inglês | MEDLINE | ID: mdl-23758625

RESUMO

BACKGROUND: Birth weight (BW) is an economically important trait in beef cattle, and is associated with growth- and stature-related traits and calving difficulty. One region of the cattle genome, located on Bos primigenius taurus chromosome 14 (BTA14), has been previously shown to be associated with stature by multiple independent studies, and contains orthologous genes affecting human height. A genome-wide association study (GWAS) for BW in Brazilian Nellore cattle (Bos primigenius indicus) was performed using estimated breeding values (EBVs) of 654 progeny-tested bulls genotyped for over 777,000 single nucleotide polymorphisms (SNPs). RESULTS: The most significant SNP (rs133012258, PGC = 1.34 × 10-9), located at BTA14:25376827, explained 4.62% of the variance in BW EBVs. The surrounding 1 Mb region presented high identity with human, pig and mouse autosomes 8, 4 and 4, respectively, and contains the orthologous height genes PLAG1, CHCHD7, MOS, RPS20, LYN, RDHE2 (SDR16C5) and PENK. The region also overlapped 28 quantitative trait loci (QTLs) previously reported in literature by linkage mapping studies in cattle, including QTLs for birth weight, mature height, carcass weight, stature, pre-weaning average daily gain, calving ease, and gestation length. CONCLUSIONS: This study presents the first GWAS applying a high-density SNP panel to identify putative chromosome regions affecting birth weight in Nellore cattle. These results suggest that the QTLs on BTA14 associated with body size in taurine cattle (Bos primigenius taurus) also affect birth weight and size in zebu cattle (Bos primigenius indicus).


Assuntos
Estatura/genética , Bovinos/genética , Estudo de Associação Genômica Ampla , Animais , Humanos , Polimorfismo de Nucleotídeo Único
7.
Mem Inst Oswaldo Cruz ; 108(3)2013 May.
Artigo em Inglês | MEDLINE | ID: mdl-23778654

RESUMO

The prevalence of occult hepatitis B virus (HBV) infection was investigated in 149 hepatitis B surface antigen (HBsAg) negative injecting drug users (IDUs) in the Central-West Region of Brazil. Of these individuals, 19 were positive for HBV DNA, resulting in an occult HBV infection prevalence of 12.7% (19/149); six of these 19 individuals had anti-HBV core and/or anti-HBV surface antibodies and 13 were negative for HBV markers. All IDUs with occult hepatitis B reported sexual and/or parenteral risk behaviours. All HBV DNA-positive samples were successfully genotyped. Genotype D was the most common (17/19), followed by genotype A (2/19). These findings reveal a high prevalence of occult HBV infection and the predominance of genotype D among IDUs in Brazil's Central-West Region.


Assuntos
Usuários de Drogas/estatística & dados numéricos , Anticorpos Anti-Hepatite B/sangue , Antígenos de Superfície da Hepatite B/sangue , Vírus da Hepatite B/imunologia , Hepatite B/epidemiologia , Adulto , Brasil/epidemiologia , DNA Viral/genética , Ensaio de Imunoadsorção Enzimática , Feminino , Hepatite B/diagnóstico , Vírus da Hepatite B/genética , Humanos , Masculino , Reação em Cadeia da Polimerase , Prevalência , Adulto Jovem
8.
Acta Trop ; 241: 106886, 2023 May.
Artigo em Inglês | MEDLINE | ID: mdl-36871619

RESUMO

Brazilian prison complexes are characterized by overcrowded cells and precarious conditions, leading to chronically low vacancy. Brazilian studies involving overt and occult infection (OBI) in this population are still scarce despite the vulnerability of people deprived of liberty to hepatitis B. Therefore, this study estimated the prevalence of HBV infection (overall and OBI) in individuals deprived of liberty in prisons in Central-Western Brazil. In addition, factors associated with HBV infection were evaluated. This cross-sectional study was conducted with a total of 1083 prisoners who were tested for serological hepatitis B markers and HBV DNA from 2017 to 2020. Factors associated with lifetime HBV infection were investigated using logistic regression. An overall prevalence of HBV infection of 10.1% (95% CI: 8.42-12.11) was detected. Only 32.8% (95% CI: 30.08-35.76) had isolated anti-HBs positivity (serological evidence of HBV vaccination). Indeed, more than half of the population was susceptible to HBV infection (57.1%; 95% CI: 54.15-60.13). HBV DNA was detected in one HBsAg-positive sample (n=1/9; 11%). Also, HBV DNA was detected in five HBsAg-negative samples (n=5/1074), resulting in a prevalence of 0.5% (95% CI: 0.15-1.08) for occult infection. After the multivariate analysis, sexual intercourse with a partner living with HIV was a predictor independently associated with HBV exposure (OR: 4.3; 95% CI: 1.26-14.55; p<0.020). These data demonstrate the need for preventive measures, mainly aimed at health education and better strategies for hepatitis B screening to control this infection in prisons more effectively.


Assuntos
Hepatite B , Prisioneiros , Humanos , Vírus da Hepatite B/genética , Brasil/epidemiologia , Antígenos de Superfície da Hepatite B , Estudos Transversais , DNA Viral/genética , Prevalência , Anticorpos Anti-Hepatite B , Hepatite B/epidemiologia
9.
Risk Manag Healthc Policy ; 14: 2757-2770, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34234591

RESUMO

Technological innovation has a significant role in improving health systems (HSs) and achieving universal health coverage (UHC). The World Health Organization (WHO) has declared resolutions on Health Technology Assessment (HTA) and other global organizations emphasized on HTA systems to achieve the Sustainable Development Goals (SDGs). HTA is a modern multidisciplinary decision-making framework linking knowledge and policymaking by assessing the medical, social, economic, organizational, and ethical effects, and/or impacts within health and social systems. The research significance lies in the growing need for HTA at these moments than ever as it is seen as an essential development approach to tackle the current global challenges and pandemics, particularly in developing countries. The research aims to comprehensively evaluate and understand HTA systems concerning the level of knowledge about HTA, current HTA structure, practices, application, capacity, gaps, and solutions. The project starts in January 2021 and ends in January 2022 and will be carried out in seven countries: Canada, Switzerland, Brazil, Lebanon, Jordan, Palestine, and Tanzania. A mixed-methods, quantitative and qualitative, along with a literature review will be applied. In each country, ten HTA-associated institutions will complete an adapted electronic survey, developed by the WHO, and ten key-informants selected purposively from the government, academia, NGOs, and private sectors to participate in ten individual in-depth interviews. One government representative from each country will participate in one expanded inter-country workshop. Excel, IBM Statistical Package for the Social Sciences (SPSS), and MAXQDA software programs will be used for data management and analysis. The research will form cutting-edge evidence not only for the seven countries, but also for the global, regional, and national endeavors with regards to opening a room for HTA best application and optimization. It will reveal lessons learned, determine gaps, and build a well-enabled and institutionalized HTA for better UHC, health systems, and multi-sectoral development.

10.
Food Chem ; 365: 130446, 2021 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-34218103

RESUMO

A variety of methods for producing cassava flour exist, resulting in very heterogeneous products that exhibit various colours, textures, granulometries, and flavours. To improve its attractiveness to consumers, some producers dye cassava flour with turmeric or tartrazine; however, this practice is illegal in Brazil. In this study, cassava flour samples were collected and evaluated for possible adulteration by the addition of dyes. Flours were analysed by CIELab and dye screening (paper chromatography and the turmeric-identification method) and a classification tree was developed using these data. Positive results for curcuminoid pigments or tartrazine were confirmed by HPLC-DAD or HPLC-UV-Vis, respectively. The developed approach is an innovative alternative chemometric-analysis method that facilitates highly practical screening; adulterated cassava flour, a product of great human-food importance, can be identified using CIELab parameters.


Assuntos
Farinha , Manihot , Cromatografia Líquida de Alta Pressão , Corantes , Farinha/análise , Humanos , Controle de Qualidade
11.
Front Microbiol ; 11: 589937, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-33329467

RESUMO

This study describes human immunodeficiency virus 1 (HIV-1) prevalence, associated factors, viral genetic diversity, transmitted drug resistance (TDR), and acquired drug resistance mutations (DRM) among a population of 522 men who have sex with men (MSM) recruited by the respondent-driven sampling (RDS) method, in Goiânia city, the capital of the State of Goiás, Central-Western Brazil. All serum samples were tested using a four-generation enzyme-linked immunosorbent assay (ELISA), and reactive samples were confirmed by immunoblotting. Plasma RNA or proviral DNA was extracted, and partial polymerase (pol) gene including the protease/reverse transcriptase (PR/RT) region was amplified and sequenced. HIV-1 subtypes were identified by phylogenetic inference and by bootscan analysis. The time and location of the ancestral strains that originated the transmission clusters were estimated by a Bayesian phylogeographic approach. TDR and DRM were identified using the Stanford databases. Overall, HIV-1 prevalence was 17.6% (95% CI: 12.6-23.5). Self-declared black skin color, receptive anal intercourse, sex with drug user partner, and history of sexually transmitted infections were factors associated with HIV-1 infection. Of 105 HIV-1-positive samples, 78 (74.3%) were sequenced and subtyped as B (65.4%), F1 (20.5%), C (3.8%), and BF1 (10.3%). Most HIV-1 subtype B sequences (67%; 34 out of 51) branched within 12 monophyletic clusters of variable sizes, which probably arose in the State of Goiás between the 1980s and 2010s. Most subtype F1 sequences (n = 14, 88%) branched in a single monophyletic cluster that probably arose in Goiás around the late 1990s. Among 78 samples sequenced, three were from patients under antiretroviral therapy (ART); two presented DRM. Among 75 ART-naïve patients, TDR was identified in 13 (17.3%; CI 95%: 9.6-27.8). Resistance mutations to non-nucleoside reverse transcriptase inhibitors (NNRTI) predominated (14.7%), followed by nucleoside reverse transcriptase inhibitor (NRTI) mutations (5.3%) and protease inhibitor (PI) mutations (1.3%). This study shows a high prevalence of HIV-1 associated with sexual risk behaviors, high rate of TDR, and high genetic diversity driven by the local expansion of different subtype B and F1 strains. These findings can contribute to the understanding about the dissemination and epidemiological and molecular characteristics of HIV-1 among the population of MSM living away from the epicenter of epidemics in Brazil.

12.
Trans R Soc Trop Med Hyg ; 114(2): 91-98, 2020 02 07.
Artigo em Inglês | MEDLINE | ID: mdl-31608957

RESUMO

BACKGROUND: People living in settlement projects represent an emergent rural population in Brazil. Data on their health is scarce and there are no data on viral hepatitis in this population. This study investigated the epidemiology of viral hepatitis A-E in residents of settlement projects in central Brazil. METHODS: During 2011 and 2012, 923 people living in rural settlements in central Brazil were interviewed and tested to estimate the prevalence of exposure to viral hepatitis A-E, to identify the circulating hepatitis B virus (HBV)/hepatitis C virus (HCV) genotypes and risk factors for HBV exposure and to evaluate adherence to the hepatitis B vaccination series. RESULTS: Overall, 85.9, 3.9, 0.4 and 17.3% of individuals showed evidence of exposure to hepatitis A virus (HAV), hepatitis E virus, HCV and HBV, respectively. Among HBV-DNA positive samples (n=8), subgenotypes A1 (n=3) and A2 (n=1) and genotype D/subgenotype D3 (n=4) were identified. Hepatitis D virus superinfection was detected in 0/16 HBsAg-positive participants. A total of 229 individuals showed serological evidence of HBV vaccination. In total, 442 settlers were eligible for vaccination, but only 150 individuals completed the vaccine series. All anti-HCV-positive samples (n=4) were also HCV-RNA positive and identified as subtype 1a. CONCLUSIONS: The intermediate endemicity of HAV, the higher prevalence of HBV exposure compared with urban areas and the low compliance with HBV vaccination requires preventive measures focused on rural populations, emphasizing the need for HAV and HBV vaccination.


Assuntos
Hepatite A , Hepatite B , Hepatite C , Hepatite D , Hepatite E , Vacinação/estatística & dados numéricos , Brasil/epidemiologia , Genótipo , Hepacivirus/genética , Hepatite A/epidemiologia , Hepatite A/prevenção & controle , Hepatite B/epidemiologia , Hepatite B/prevenção & controle , Vírus da Hepatite B/genética , Hepatite C/epidemiologia , Hepatite C/prevenção & controle , Hepatite D/epidemiologia , Hepatite D/prevenção & controle , Vírus Delta da Hepatite/genética , Hepatite E/epidemiologia , Hepatite E/prevenção & controle , Vírus da Hepatite E/genética , Humanos , Prevalência , Fatores de Risco , População Rural
13.
Food Chem ; 285: 397-405, 2019 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-30797363

RESUMO

The nanoencapsulation of carotenoids is presented as a positive alternative to broaden the application of these pigments in the food industry. In this study, we investigated the use of yellow passion fruit albedo flour as an encapsulating material for the production of nanodispersions of carotenoid extract obtained from Spirulina sp. LEB 18. Nanodispersions were characterized for their physicochemical properties, antioxidant activity, stability, and retention of carotenoids after 60 days of storage (4 °C). The nanodispersions made from yellow passion fruit albedo flour and microalgae carotenoid extract presented an average particle diameter at the nanometer scale, high antioxidant activity, and carotenoid retention compared to nanodispersions containing synthetic ß-carotene. Yellow passion fruit albedo flour as a polymeric material in the production of carotenoid nanodispersions is an alternative to commercial polymers and allows greater stability and broader application of these pigments.


Assuntos
Carotenoides/química , Nanoestruturas/química , Passiflora/química , Spirulina/química , Antioxidantes/química , Antioxidantes/farmacologia , Farinha , Armazenamento de Alimentos , Frutas/química , Extratos Vegetais/química , beta Caroteno/análise
14.
Hematol Transfus Cell Ther ; 41(3): 199-204, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31036513

RESUMO

INTRODUCTION: Carriers of oncohematological diseases are at high risk for hepatitis B virus (HBV) infection. OBJECTIVE AND METHOD: To investigate the epidemiology of HBV infection in Goiânia, Central Brazil, 322 individuals with oncohematological diseases (leukemias, Hodgkin lymphoma and non-Hodgkin lymphoma) were interviewed and blood samples were collected for the detection of serological markers of HBV-DNA by polymerase chain reaction (PCR). Medical records of participants were also reviewed. RESULTS: Non-Hodgkin's lymphomas (n=99) and chronic myeloid leukemia (n=108) were the most frequent oncohematological diseases. The overall prevalence of HBV was 13.97% (45/322). Of the total participants, 8.69% (28/322) presented isolated positivity for anti-HBs, suggesting low vaccine coverage. HBV-DNA was detected in 25% (1/4) of HBsAg positive samples and in 25% (3/12) of anti-HBc isolated, suggesting HBV occult infection. All samples were identified as subgenotype A1. Entries in patient records and the findings of this investigation suggest anti-HBc seroconversion during oncologic treatment. Age 50 years or over and use of a central catheter during therapy were associated with HBV exposure. CONCLUSION: The low frequency of hepatitis B immunized individuals, detection of HBV DNA in HBsAg negative samples, and the suggestion of HBV exposure during treatment evidenced the potential for health-related viral dissemination in people with oncohematological diseases in our region, reinforcing the importance of serological monitoring, vaccination against hepatitis B, and adoption of strict infection control measures in these individuals.

15.
Rev Inst Med Trop Sao Paulo ; 60: e36, 2018 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-30066804

RESUMO

Infection control measures have been responsible for a decline in the prevalence of hepatitis B virus (HBV) and hepatitis C virus (HCV) infections in hemodialysis patients. In Brazil, these measures have been in place since 1996. The aim of this study was to evaluate the current HBV and HCV epidemiology among hemodialysis patients in the State of Tocantins comparing them with those found 14 years ago. There was a significant decline in hepatitis B surface antigen (HBsAg) and anti-HCV prevalence from 4% and 13% in 2001 to 0.8% and 2.8% in 2014-2015, respectively (p < 0.05). Variables related to hemodialysis environment such as working shift and length of time on hemodialysis treatment were no longer associated to HCV and HBV exposure in 2014-2015. A high prevalence of self-reported hepatitis B vaccination was observed in both periods, but only 30% of the individuals showed serological profile of effective previous immunization, suggesting a low compliance with surveillance of hepatitis B immunization in hemodialysis centers. The significant decline in viral hepatitis B and C prevalence in hemodialysis patients in Tocantins underscores the importance of infection control measures, but the low frequency of protective serological profile after immunization against hepatitis B points to the need for greater vigilance of the patients' vaccination.


Assuntos
Hepatite B/epidemiologia , Hepatite C/epidemiologia , Diálise Renal/estatística & dados numéricos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Brasil/epidemiologia , Feminino , Hepacivirus/imunologia , Hepatite B/etiologia , Anticorpos Anti-Hepatite B/sangue , Antígenos de Superfície da Hepatite B/sangue , Vírus da Hepatite B/imunologia , Hepatite C/etiologia , Anticorpos Anti-Hepatite C/sangue , Humanos , Masculino , Pessoa de Meia-Idade , Prevalência , Fatores de Risco , Adulto Jovem
16.
Rev Saude Publica ; 51: 65, 2017 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-28678904

RESUMO

OBJECTIVE: To estimate the prevalence of hepatitis B virus and C virus infections and their genotypes and analyze the risk factors for the markers of exposure to hepatitis B virus in female sex workers in a region of intense sex trade. METHODS: This is a cross-sectional study performed with four hundred and two female sex workers in Goiânia, Brazil. Data have been collected using the Respondent-Driven Sampling. The women have been interviewed and tested for markers of hepatitis B and C viruses. Positive samples have been genotyped. The data have been analyzed using the Respondent-Driven Sampling Analysis Tool, version 5.3, and Stata 11.0. RESULTS: The adjusted prevalence for hepatitis B virus and C virus were 17.1% (95%CI 11.6-23.4) and 0.7% (95%CI 0.1-1.5), respectively. Only 28% (95%CI 21.1-36.4) of the participants had serological evidence of vaccination against hepatitis B virus. Being older (> 40 years), being single, having a history of blood transfusion and use of cocaine, and ignoring the symptoms of sexually transmitted infections were associated with positivity for hepatitis B virus (p < 0.05). We have detected the subgenotype A1 of hepatitis B virus (n = 3) and the subtypes of hepatitis C virus 1a (n = 3) and 1b (n = 1). CONCLUSIONS: We can observe a low prevalence of infection of hepatitis B and C viruses in the studied population. However, the findings of the analysis of the risk factors show the need for more investment in prevention programs for sexual and drug-related behavior, as well as more efforts to vaccinate this population against hepatitis B. The genotypes of the hepatitis B virus and C virus identified are consistent with those circulating in Brazil.


Assuntos
Hepacivirus/genética , Vírus da Hepatite B/genética , Hepatite B/epidemiologia , Hepatite C/epidemiologia , Profissionais do Sexo/estatística & dados numéricos , Adulto , Brasil/epidemiologia , Estudos Transversais , Feminino , Genótipo , Hepatite B/sangue , Hepatite C/sangue , Humanos , Masculino , Prevalência , Fatores de Risco , Estudos Soroepidemiológicos , Infecções Sexualmente Transmissíveis , Fatores Socioeconômicos , Adulto Jovem
17.
Rev. baiana saúde pública ; 45(3, n.esp): 53-64, 31 dez. 2021.
Artigo em Português | LILACS | ID: biblio-1355149

RESUMO

A Estratégia Saúde da Família é o eixo orientador do modelo assistencial brasileiro. Uma das responsabilidades dos Estados, estabelecida na Política Nacional de Atenção Básica (PNAB), é prestar apoio institucional aos municípios no processo de implantação, acompanhamento e qualificação da Atenção Básica e de ampliação e consolidação da Estratégia Saúde da Família. Na Bahia, a Diretoria da Atenção Básica (DAB) da Secretaria da Saúde do Estado é responsável por prestar apoio institucional aos municípios, por meio dos Colegiados dos Coordenadores de Atenção Básica e de visitas técnicas às cidades. Entretanto, o estado da Bahia enfrenta escassez de recursos humanos e financeiros, em especial para acompanhar os municípios in loco cumprindo suas responsabilidades. Dessa maneira, identificou-se a necessidade de priorizar os municípios, a partir de indicadores de saúde, para o acompanhamento presencial pelos apoiadores institucionais dos níveis central e regional. Assim, este trabalho tem como objetivo descrever o processo de elaboração de ferramenta informatizada para priorização de municípios para a intervenção presencial do apoio institucional da DAB e dos Núcleos Regionais de Saúde (NRS). Para compor a ferramenta, foram selecionados 13 indicadores, organizados em planilha no Microsoft Excel (2007), distribuindo os 417 municípios nas linhas e os indicadores e seus valores nas colunas. Os valores alcançados pelos municípios em cada um dos indicadores foram estratificados e ponderados de acordo com parâmetros definidos pela literatura e/ou área técnica responsável. Ao final, foi atribuída uma nota por município, sendo cinquenta a pontuação máxima possível. Assim, a partir do Instrumento de Priorização de Municípios, as cidades que apresentaram as maiores pontuações foram definidas como prioritárias para atuação dos apoiadores institucionais.


The Family Health Strategy is the guiding axis of the Brazilian care model. According to the National Primary Care Policy (PNAB), one of the responsibilities of the States is to provide institutional support to municipalities in implementing, monitoring, and qualifying primary care, as well as in expanding and consolidating the Family Health Strategy. In Bahia, the Primary Care Board (DAB) of the State Health Department is responsible for providing institutional support to municipalities through the Boards of Primary Care Coordinators and for conducting technical visits to municipalities. However, the state of Bahia faces a shortage of human and financial resources, specially to monitor the municipalities in loco, thus indicating the need for prioritizing the municipalities that will be monitored by institutional supporters based on health indicators at the central and regional levels. Thus, this paper aims to describe the development of a computerized tool for prioritizing municipalities to receive on-site intervention from the DAB and the Regional Health Departments (RHDs). Such a tool consisted of 13 indicators organized in a Microsoft Excel spreadsheet (2007) by distributing the 417 municipalities in the lines and the indicators and their values in the columns. The values achieved by the municipalities in each of the indicators were stratified and weighted according to parameters defined by the literature and/or responsible technical area. Then, each municipality was assigned a score, being 50 the maximum possible. The Instrument for Prioritization of Municipalities allowed for determining priority municipalities (those with the highest scores) to receive monitoring by institutional supporters.


La Estrategia de Salud Familiar es el eje orientador del modelo de atención brasileño. Una de las responsabilidades de los estados que establece la Política Nacional de Atención Primaria (PNAB) es brindar apoyo institucional a los municipios en el proceso de implementación, seguimiento y calificación de la Atención Primaria, así como en la expansión y consolidación de la Estrategia de Salud Familiar. En Bahía (Brasil), la Junta de Atención Primaria (DAB) de la Secretaría de Salud del Estado se encarga de brindar apoyo institucional a los municipios, a través del Colegio de Coordinadores de Atención Primaria y de visitas técnicas a los municipios. Sin embargo, el estado de Bahía se enfrenta a una escasez de recursos humanos y financieros, en particular en el seguimiento de los municipios in loco respecto al cumplimiento de sus responsabilidades. De esta manera, se pretende investigar la necesidad de priorizar, con base en indicadores de salud, los municipios para el seguimiento presencial por parte de los apoyos institucionales en el ámbito central y regional. Así, este trabajo tiene como objetivo describir el proceso de elaboración de una herramienta computarizada de priorización de municipios para la intervención in situ con apoyo institucional de la DAB y de los Núcleos Regionales de Salud (NRS). Para componer la herramienta se seleccionaron 13 indicadores, organizados en una hoja de cálculo de Microsoft Excel (2007), distribuyendo los 417 municipios en líneas y los indicadores y sus valores en columnas. Los valores alcanzados por los municipios en cada uno de los indicadores fueron estratificados y ponderados según parámetros definidos por la literatura y/o el área técnica responsable. Al final, se asignó una puntuación por municipio, siendo 50 la máxima puntuación posible. Así, a partir del Instrumento de Priorización de Municipios, se definieron los municipios prioritarios con mayores puntajes para el desempeño de los apoyadores institucionales.


Assuntos
Atenção Primária à Saúde , Indicadores Básicos de Saúde
18.
Rev Inst Med Trop Sao Paulo ; 58: 80, 2016 Nov 03.
Artigo em Inglês | MEDLINE | ID: mdl-27828621

RESUMO

Human T-cell lymphotropic virus (HTLV) may affect the clinical course of human immunodeficiency virus 1 (HIV1). Both infections are common in endemic areas because these viruses share similar routes of transmission. The aim of this study was to estimate the seroprevalence of HTLV1/2 in a population of HIV1-infected patients in the state of Goiás, Midwestern Brazil. Of the 505 studied patients, four (0.79%) were positive for anti-HTLV1/2 by enzyme-linked immunosorbent assay (ELISA), with HTLV1 infection confirmed by line immunoassay (LIA) and polymerase chain reaction (PCR) in all of the ELISA-positive samples. No cases of HTLV2 infection were observed. The prevalence of HTLV1/HIV1 coinfection was 0.79% (4/505; 95% CI: 0.25-2.16). All the coinfected patients reported sexual risk behaviors and only one reported intravenous drug use. Sequencing of the viral long terminal repeat (LTR) region and phylogenetic analysis revealed that the four HTLV1 isolates belonged to the Transcontinental a subgroup of the Cosmopolitan (1a) subtype, the most frequent subgroup detected in Brazil. This study shows a low prevalence of HTLV1/2 in HIV1-infected patients in Midwestern Brazil.


Assuntos
Coinfecção/epidemiologia , Infecções por HIV/epidemiologia , Infecções por HTLV-I/epidemiologia , Adulto , Brasil/epidemiologia , Ensaio de Imunoadsorção Enzimática , Feminino , Vírus Linfotrópico T Tipo 1 Humano/genética , Vírus Linfotrópico T Tipo 1 Humano/imunologia , Vírus Linfotrópico T Tipo 2 Humano/genética , Vírus Linfotrópico T Tipo 2 Humano/imunologia , Humanos , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Prevalência , Estudos Soroepidemiológicos , Fatores Socioeconômicos
19.
PLoS One ; 11(8): e0160916, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27508385

RESUMO

BACKGROUND: Men who have sex with men (MSM) are at increased risk of exposure to hepatitis B virus (HBV) compared with the general population. This study aims to assess the epidemiological and virological characteristics of HBV infection in a sample of MSM in Brazil, where data are scarce. METHODS: A cross-sectional study was conducted among MSM in the City of Goiânia, Central Brazil, from March to November 2014, using Respondent-Driven Sampling (RDS). After signing the consent form, participants were interviewed and a blood sample collected. All samples were tested for HBV serological markers and HBV DNA. HBV nucleotide sequence analysis was also performed. RESULTS: A total of 522 MSM were recruited in the study. The prevalence of HBV infection (current or past [presence of anti-HBc marker]) was 15.4% (95% CI: 8.7-25.8) and the rate of HBsAg carriers was 0.6% (95% CI: 0.2-1.6). About 40% (95% CI: 32.3-48.8) of the participants had serological evidence of previous HBV vaccination (reactive for isolated anti-HBs). In addition, 44.3% (95% CI: 36.1-52.9) were seronegative for all HBV markers. Age over 25 years old, receptive anal intercourse, previous sex with women, and history of sexually transmitted infections (STIs) were factors associated with HBV infection. HBV DNA was detected only in HBsAg-positive individuals. HBV isolates were classified into genotype A (subgenotypes A1 and A2), and some mutations were identified throughout the genome. Therefore, occult HBV infection was not observed in the study population. CONCLUSIONS: Public health strategies should be improved for the MSM population in order to prevent HBV and other STIs, as well as to provide appropriate management of patients with active infections.


Assuntos
Vírus da Hepatite B/genética , Hepatite B/epidemiologia , Homossexualidade Masculina , Adulto , Brasil/epidemiologia , Estudos Transversais , Feminino , Inquéritos Epidemiológicos , Hepatite B/virologia , Antígenos de Superfície da Hepatite B/sangue , Vírus da Hepatite B/isolamento & purificação , Homossexualidade Masculina/psicologia , Humanos , Masculino , Filogenia , Assunção de Riscos , Comportamento Sexual
20.
Rev. Rede cuid. saúde ; 13(2): [44,59], 20191215.
Artigo em Português | LILACS | ID: biblio-1047233

RESUMO

Objetivos: Analisar a satisfação dos familiares de crianças internadas em Unidade de Terapia Intensiva Neonatal de dois hospitais da rede pública da região metropolitana da cidade de Porto Alegre. Metodologia: estudo transversal, descritivo, com abordagem quantitativa, realizado com 66 familiares, por meio do Inventário de Necessidades e Estressores de Familiares em Terapia Intensiva. A análise estatística foi realizada com auxilio do software SPSS versão 21. O estudo recebeu aval ético da Faculdade Inedi -CAAE (80835417.5.0000.5665). Resultados: a média dos scores dos itens de satisfação e importância variou de 3,94 a 2,41 para os familiares da instituição A e de 3,88 a 2,40 para os da B. Houve diferença significativa na satisfação de sentir-se aceito pelas pessoas/funcionários do hospital, sendo a satisfação média mais elevada no hospital A. Conclusões: a realização deste trabalho permitiu conhecer as reais necessidades e os sentimentos dos familiares de neonatos internados na NEO.


Aim: To analyze the satisfaction of the relatives of children hospitalized in the Neonatal Intensive Care Unit of two public hospitals in the metropolitan region of the city of Porto Alegre. Methodology: cross-sectional, descriptive study with a quantitative approach performed with 66 family members, measured by Inventory of Needs and Stressors of Families in Intensive Care. Statistical analysis was performed with SPSS software version 21. The study received ethical endorsement from the Faculty Inedi -CAAE (80835417.5.0000.5665). Results: the mean scores of the items of satisfaction and importance ranged from 3.94 to 2.41 for relatives of institution A and from 3.88 to 2.40 for those of B. There was a significant difference in satisfaction of feeling accepted by hospital personnel / employees, with the highest average satisfaction in hospital A. Conclusions: the realization of this work allowed to know the real needs and feelings of the relatives of newborns admitted to the NEO.


Assuntos
Humanos , Masculino , Feminino , Recém-Nascido , Recém-Nascido , Unidades de Terapia Intensiva Neonatal , Enfermagem , Hospitalização
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