The Lewis histo-blood group system: molecular analysis of the 59T>G, 508G>A, and 1067T>A polymorphisms in an Amazonian population.

BACKGROUND: The Lewis (FUT3) gene is responsible for the expression of the Le(a) and Le(b) blood group antigens. The individuals, who not synthesize these antigens have the phenotype Lewis negative, due to the presence of some single nucleotide polymorphisms (SNPs), such as 59T>G, 508G>A and 1067T>A, whose distribution is different in various ethnic groups. Our aim was to verify the frequencies of these SNPs in an admixed population of Belém-Pará-Brazil. MATERIALS AND METHODS: Polymerase chain reaction/restriction enzyme method were used to detect these SNPs in the FUT3 gene, whereas Lewis phenotypes were defined by the direct hemagglutination and in saliva by Dot-Elisa assay in a random sample of 150 individuals from admixed population of Belém in the northeast Brazilian Amazon region. RESULTS: The frequency of these SNPs was detected as 47.6% (59T>G), 17.3% (508G>A) and 5.3% (1067T>A).The discrepancies between blood and salivary Lewis phenotypes are related to the relatively high frequencies of 59T>G and the null allele 508G>A. Whereas 38.6% of the individuals were Lewis negative based on blood, only 17.24% also tested negative when their saliva were analyzed. CONCLUSION: We have found a marked consistency between the phenotypes and genotypes of the Lewis blood group system. Furthermore, our obtained FST values reveal distinct frequencies of the FUT3 SNPs between the present sample and its representative ancestral populations. These observations will help to evaluate the Lewis antigens impact as susceptibility markers, in genetic association studies to certain diseases

The F_ST values for pairwise comparisons of haplotype frequencies of the <i>FUT3</i> gene between the present study and other populations.

*<p>Soejima <i>et al</i>.; <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0069908#pone.0069908-Soejima1" target="_blank">[11]</a>.</p

Allele and genotype frequencies for the <i>FUT3</i> loci analyzed in the sample from the population of Belém in the northeast Brazilian Amazon region.

<p>Allele and genotype frequencies for the <i>FUT3</i> loci analyzed in the sample from the population of Belém in the northeast Brazilian Amazon region.</p

Genotype frequencies for the Lewis (<i>FUT3</i>) gene and non-O blood groups in the positive and non-genuine Lewis-negative individuals.

<p>Genotype frequencies for the Lewis (<i>FUT3</i>) gene and non-O blood groups in the positive and non-genuine Lewis-negative individuals.</p

Lewis and ABO blood group phenotypes and <i>FUT3</i> genotypes recorded for the individuals from Belém in the northeast Brazilian Amazon region.

<p>le*: 59/508 and/or 59/1067.</p

Amplification conditions for the <i>FUT3</i> gene and its restriction sites for the different endonucleases analyzed in the present study.

*<p>Kudo<i>et al.,</i><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0069908#pone.0069908-Kudo1" target="_blank">[21]</a>;</p>**<p>Francez <i>et al.</i>; <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0069908#pone.0069908-Francez1" target="_blank">[22]</a>.</p

New combinations and new names in some Brazilian Microlicieae (Melastomataceae), with notes on the delimitation of Lavoisiera, Microlicia, and Trembleya

Volume: 11Start Page: 1End Page:

Characteristics and outcomes of severe COVID-19 in hospitalized patients with cardiovascular diseases in the Amazonian region of Brazil: a retrospective cohort

Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brazil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brazil.Universidade Federal do Pará. Núcleo de Medicina Tropical. Programa de Pós-Graduação em Doenças Tropicais. Belém, PA, Brazil.University of Michigan. Ann Arbor, MI, USA.Universidade Federal do Pará. Programa de Pós-Graduação em Biologia de Agentes Infeciosos e Parasitários. Belém, PA, Brazil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brazil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brazil.The northern region of Brazil is already vulnerable to other infectious diseases and it was no different in COVID-19. However, cardiovascular diseases still lead the causes of death. Thus, the objective of this study is to identify the clinical predictors and outcome of severe COVID-19 in hospitalized patients with and without CVD in this region of the Amazon. A retrospective cohort, referring to the notifications from January 1 to December 31, 2020, including cases confirmed by molecular testing. The study consisted of 9223 confirmed cases for COVID-19. Of these, 6011 (65.17%) did not have cardiovascular disease and 3212 (34.83%) had some cardiovascular disease. The significance of deaths was in the age group of < 1 to 59 CVD carriers (< 0.001). Predictor of mortality were invasive ventilation for patients with CVD, (OR 23,688 CI 18,180-30,866), followed by chronic kidney disease (OR 2442 CI 1568-3740), dyspnea (OR 2312 CI 1817-3941), respiratory distress (OR 1523 CI 1210-2919), cough (OR 1268 CI 1005-1599), Lower oxygen saturation 95% (OR 1281 CI 1039-1579), diabetes mellitus (OR 1267 CI 1050-1528) and age (OR 1051 CI 1044-1058). Carriers of CVD had a lower survival rate (< 0.0001). The order of the predictors of death differed among the non-carriers, as well as the high odds ratio in the predictors of CVD, only cough was an independent predictor. The age group under 59 years was associated with deaths. We also show the shorter survival in CVD carriers, as well as the higher cardiovascular morbidity rate than other studies in the literature

Risk factors associated with the severity of COVID-19 in a region of the Brazilian Amazon

Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil.Universidade Federal do Pará. Programa de Pós-Graduação em Biologia de Agentes Infecciosos e Parasitários. Belém, PA, Brazil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brasil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brasil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brasil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Laboratório de Geoprocessamento. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil / Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brasil.The Brazilian Northern region registered a high incidence of COVID-19 cases, particularly in the state of Pará. The present study investigated the risk factors associated with the severity of COVID-19 in a Brazilian Amazon region of 100,819 cases. An epidemiological, cross-sectional, analytical and demographic study, analyzing data on confirmed cases for COVID-19 available at the Brazilian Ministry of Health's surveillance platform, was conducted. Variables such as, municipalities of residence, age, gender, signs and symptoms, comorbidities were included and associated with COVID-19 cases and outcomes. The spatial distribution was performed using the ArcGIS program. A total of 100,819 cases were evaluated. Overall, patients had the mean age of 42.3 years, were female (51.2%) and with lethality reaching 4.79% of cases. Main symptoms included fever (66.5%), cough (61.9%) and sore throat (39.8%). Regarding comorbidities, most of the patients presented cardiovascular disease (5.1%) and diabetes (4.2%). Neurological disease increased risk of death by nearly 15 times, followed by obesity (5.16 times) and immunodeficiency (5.09 time). The municipalities with the highest incidence rate were Parauapebas, Canaã dos Carajás and Jacareacanga. Similarity between the Lower Amazon, Marajó and Southwest mesoregions of Pará state were observed concerning the highest morbidity rates. The obtained data demonstrated that the majority of cases occurred among young adults, females, with the classic influenza symptoms and chronic diseases. Finally, data suggest that the highest incidences were no longer in the metropolitan region of the state. The higher lethality rate than in Brazil may be associated with the greater impacts of the disease in this Amazonian population, or factors associated with fragile epidemiological surveillance in the notification of cases of cure

Clinical and spatial characteristics of severe acute respiratory syndrome by COVID-19 in indigenous of Brazil

Evandro Chagas Institute (IEC) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPQ)/Coordenação de Aperfeiçoamento de Pessoal de Nível Superior é uma fundação vinculada ao Ministério da Educação do Brasil (CAPES).Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brazil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brazil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brazil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brazil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brazil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, Brazil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Secretaria de Estado de Saúde Pública do Pará. Belém, PA, BrazilMinistério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Programa de Pós-Graduação em Epidemiologia e Vigilância em Saúde. Ananindeua, PA, Brasil / Universidade do Estado do Pará. Programa de Pós-Graduação em Biologia Parasitária na Amazônia. Belém, PA, BrazilThe new coronavirus (SARS-CoV-2) broke out in Wuhan in China in December 2019, causing severe pneumonia and deaths, soon in March 2020, it reached pandemic level, affecting several countries including Brazil. The disease was named COVID-19, with characteristics of most infected having mild and moderate symptoms and a part severe symptom. The disease has already reached 158 ethnic groups, which have high vulnerability and limited access to health services. The objective is to investigate the clinical and spatial characteristics of Severe Acute Respiratory Syndrome of COVID-19 in the indigenous peoples of Brazil. It is an epidemiological, cross-sectional, analytical ecological study, based on data from the OpenDataSUS platform from 01/01/2020 to 31/08/2020. Profile variables, signs and symptoms and risk factors/comorbidities. The data were analyzed by Bioestat 5.3. There were 1,207 cases and 470 deaths. Profile: male gender (59.48%) means age 53 years. Signs and symptoms: fever (74.23%), cough (77.71%), sore throat (35.62%), dyspnea (69.34%), respiratory discomfort (62.80%), O2 saturation < 95% (56.42%); and associated with mortality: dyspnea (80.0%) and O2 saturation < 95% (69.36%). Risk factors and comorbidities (45.89%) were associated with deaths (54.04%). About comorbidities, chronic cardiovascular diseases represented (18.97%) and Diabetes Mellitus (18.97%), and associated with deaths: Chronic Cardiovascular Disease (24.46%). Being admitted to the ICU has a risk of death in (OR-3.96- < 0.0001-CI-2913/5383) followed by not being vaccinated against influenza (OR-1.85- < 0.0001-CI-1358/2528). The public and health policies of Brazil should be directed to control the dissemination of COVID-19 in this population, that COVID-19 evolves in the same intensity, however, the indigenous have vulnerabilities that can increase the impact of the pandemic in this population