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Junior JDES, de Souza JL, da Silva LS, da Silva CC, do Nascimento TA, de Souza MLG, da Cunha AF, Batista JDS, Neto JPDM, Guerra MVDF, Ramasawmy R. A fine mapping of single nucleotide variants and haplotype analysis of IL13 gene in patients with Leishmania guyanensis-cutaneous leishmaniasis and plasma cytokines IL-4, IL-5, and IL-13. Front Immunol 2023; 14:1232488. [PMID: 37908348 PMCID: PMC10613733 DOI: 10.3389/fimmu.2023.1232488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/28/2023] [Indexed: 11/02/2023] Open
Abstract
Introduction Leishmaniasis continues to pose a substantial health burden in 97 countries worldwide. The progression and outcome of Leishmania infection are influenced by various factors, including the cytokine milieu, the skin microbiota at the infection site, the specific Leishmania species involved, the genetic background of the host, and the parasite load. In endemic regions to leishmaniasis, only a fraction of individuals infected actually develops the disease. Overexpression of IL-13 in naturally resistant C57BL/6 mice renders them susceptible to L. major infection. Haplotypes constructed from several single nucleotide variant (SNV) along a chromosome fragment may provide insight into any SNV near the fragment that may be genuinely associated with a phenotype in genetic association studies. Methods We investigated nine SNVs (SNV1rs1881457A>C, SNV2rs1295687C>G, SNV3rs2069744C>T, SNV4rs2069747C>T, SNV5rs20541A>G, SNV6rs1295685A>G, SNV7rs848A>C, SNV8rs2069750G >C, and SNV9rs847T>C) spanning the entire IL13 gene in patients with L. guyanensis cutaneous leishmaniasis (Lg-CL). Results Our analysis did not reveal any significant association between the SNVs and susceptibility/protection against Lg-CL development. However, haplotype analysis, excluding SNV4rs2069747 and SNV8rs2069750 due to low minor allele frequency, revealed that carriers of the haplotype CCCTAAC had a 93% reduced likelihood developing Lg-CL. Similarly, the haplotypes ACCCGCT (ORadj=0.02 [95% CI 0.00-0.07]; p-value, 6.0×10-19) and AGCTAAC (ORadj=0.00[95% CI 0.00-0.00]; p-value 2.7×10-12) appeared to provide protection against the development of Lg-CL. Conversely, carriers of haplotype ACCTGCC have 190% increased likelihood of developing Lg-CL (ORadj=2.9 [95%CI 1.68-5.2]; p-value, 2.5×10-6). Similarly, haplotype ACCCAAT (ORadj=2.7 [95%CI 1.5-4.7]; p-value, 3.2×10-5) and haplotype AGCCGCC are associated with susceptibility to the development of Lg-CL (ORadj=1.7[95%CI 1.04-2.8]; p-value, 0.01). In our investigation, we also found a correlation between the genotypes of rs2069744, rs20541, rs1295685, rs847, and rs848 and plasma IL-5 levels among Lg-Cl patients. Furthermore, rs20541 showed a correlation with plasma IL-13 levels among Lg-Cl patients, while rs2069744 and rs848 showed a correlation with plasma IL-4 levels among the same group. Conclusions Overall, our study identifies three haplotypes of IL13 associated with resistance to disease development and three haplotypes linked to susceptibility. These findings suggest the possibility of a variant outside the gene region that may contribute, in conjunction with other genes, to differences in susceptibility and partially to the pathology.
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Affiliation(s)
- José do Espírito Santo Junior
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
| | - Josué Lacerda de Souza
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazonia Legal (Rede Bionorte), Universidade do Estado do Amazonas, Manaus, Brazil
| | - Lener Santos da Silva
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazonia Legal (Rede Bionorte), Universidade do Estado do Amazonas, Manaus, Brazil
| | - Cilana Chagas da Silva
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
| | - Tuanny Arruda do Nascimento
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | | | | | | | | | - Marcus Vinitius de Farias Guerra
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazonia Legal (Rede Bionorte), Universidade do Estado do Amazonas, Manaus, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Genomic Health Surveillance Network: Optimization of Assistance and Research in The State of Amazonas – REGESAM, Manaus, Amazonas, Brazil
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Sequera HDG, de Souza JL, Junior JDES, da Silva LS, Pinheiro SK, Kerr HKA, de Souza MLG, Guerra MVDF, de Mesquita TGR, Ramasawmy R. Variants of CARD8 in Leishmania guyanensis-cutaneous leishmaniasis and influence of the variants genotypes on circulating plasma cytokines IL-1β, TNFα and IL-8. PLoS Negl Trop Dis 2023; 17:e0011416. [PMID: 37276232 PMCID: PMC10270566 DOI: 10.1371/journal.pntd.0011416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 06/15/2023] [Accepted: 05/24/2023] [Indexed: 06/07/2023] Open
Abstract
Nucleotide-binding oligomerization domain, leucine-rich repeat-containing protein family (NLR) are intracellular pathogen recognition receptors mediating innate immunity, releasing proinflammatory cytokines IL-1β and IL-18, and promoting pyroptotic cell death, upon sensing pathogenic or endogenous danger signals. In animal models, NLRP3 inflammasome has a dual role, pathogenic or protective in Leishmania-infection, depending on the Leishmania species and mice strain. Caspase recruitment containing domain 8 (CARD8) is a negative regulator of NLRP3 inflammasome and also an inhibitor of transcription factor NFĸB, a major transcription factor of proinflammatory cytokines. We investigated whether single nucleotide variants in CARD8 may partially explain why only a proportion of individuals coming from the same area of endemicity of leishmaniasis develop cutaneous leishmaniasis caused by Leishmania guyanensis. We genotyped four single nucleotide variants of the CARD8 gene by direct nucleotide sequencing in 1741 individuals from an endemic area of leishmaniasis, constituting 850 patients with CL and 891 healthy controls. The frequencies of the genotypes of the variants rs2288877 T>C, rs73944113 C>T, and rs2043211 A>T are similar among the patients with CL and HC, while the variant rs2288876 A>G) reveals an excess of the genotype AA among the patients with CL (44%) compared to 37% in the HC group. Allele A of the variant rs2288876 A>G) is associated with susceptibility to CL (OR = 1.2 [95%CI 1.03-1.4]; P = 0.01). Haplotype analysis showed that individuals harboring the haplotype CCAA have 280% odds of developing CL caused by L. guyanensis (OR = 3.8 [95% CI 2.0-7.7]; p = 0.00004). The variants rs2288877 T>C and rs2288876 A>G correlate with the plasma level of IL-8. Spearman correlation showed a significant positive correlation between the rs2288876 A>G allele A and the level of IL-8 (ρ = 0.22; p = 0.0002). CARD8 may partially contribute to the development of CL caused by L. guyanensis.
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Affiliation(s)
| | - Josué Lacerda de Souza
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil
| | - José do Espírito Santo Junior
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil
| | - Lener Santos da Silva
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazonia Legal (Rede Bionorte), Universidade do Estado do Amazonas, Manaus, Brazil
| | - Suzana Kanawati Pinheiro
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
| | | | | | - Marcus Vinitius de Farias Guerra
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - Tirza Gabrielle Ramos de Mesquita
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazonia Legal (Rede Bionorte), Universidade do Estado do Amazonas, Manaus, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
- Genomic Health Surveillance Network: Optimization of Assistance and Research in the State of Amazonas (REGESAM), Manaus, Brazil
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de Mesquita TGR, Junior JDES, de Souza JL, da Silva LS, do Nascimento TA, de Souza MLG, Guerra MVDF, Ramasawmy R. Variants of NOD2 in Leishmania guyanensis-infected patients with cutaneous leishmaniasis and correlations with plasma circulating pro-inflammatory cytokines. PLoS One 2023; 18:e0281814. [PMID: 36795715 PMCID: PMC9934361 DOI: 10.1371/journal.pone.0281814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 02/01/2023] [Indexed: 02/17/2023] Open
Abstract
Leishmaniases, a group of vector-borne diseases, are caused by the protozoan intracellular parasite Leishmania (L.) and are transmitted by the phlebotomine sandflies. A wide range of clinical manifestations in L- infection is observed. The clinical outcome ranges from asymptomatic, cutaneous leishmaniasis (CL) to severe mucosal leishmaniasis (ML) or visceral leishmaniasis (VL), depending on the L. species. Interestingly, only a fraction of L.-infected individuals progress to disease development, suggesting a key role of host genetics in the clinical outcome. NOD2 plays a critical role in the control of host defense and inflammation. The NOD2-RIK2 pathway is involved in developing a Th1- type response in patients with VL and C57BL/6 mice infected with L. infantum. We investigated whether variants in the NOD2 gene (R702W rs2066844, G908R rs2066845, and L1007fsinsC rs2066847) are associated with susceptibility to CL caused by L. guyanensis (Lg) in 837 patients with Lg-Cl and 797 healthy controls (HC) with no history of leishmaniasis. Both patients and HC are from the same endemic area of the Amazonas state of Brazil. The variants R702W and G908R were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP), and L1007fsinsC was by direct nucleotide sequencing. The minor allele frequency (MAF) of L1007fsinsC was 0.5% among the patients with Lg-CL and 0.6% in the healthy controls group. R702W genotypes frequencies were similar in both groups. Only 1% and 1.6% were heterozygous for G908R among the patients with Lg-CL and HC, respectively. None of the variants revealed any association with susceptibility to the development of Lg-CL. Correlations of genotypes with the level of plasma cytokines revealed that individuals with the mutant alleles of R702W tend to have low levels of IFN-γ. G908R heterozygotes also tend to have low IFN-γ, TNF-α, IL-17, and IL-8. Variants of NOD2 are not involved in the pathogenesis of Lg-CL.
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Affiliation(s)
- Tirza Gabrielle Ramos de Mesquita
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - José do Espírito Santo Junior
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
| | - Josué Lacerda de Souza
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
| | - Lener Santos da Silva
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazonia Legal (Rede Bionorte), Universidade do Estado do Amazonas, Manaus, Brazil
| | | | - Mara Lúcia Gomes de Souza
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Marcus Vinitius de Farias Guerra
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
- Programa de Pós-Graduação em Biodiversidade e Biotecnologia da Amazonia Legal (Rede Bionorte), Universidade do Estado do Amazonas, Manaus, Brazil
- Genomic Health Surveillance Network: Optimization of Assistance and Research in The State of Amazonas – REGESAM, Manaus, Amazonas, Brazil
- * E-mail:
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da Silva Brito R, de Lima Barros LM, Moreira LW, Normando RN, de Jesus TB, de Souza Gonçalves M, Ramasawmy R, de Oliveira SF, da Silva KER, Fraiji NA, da Hora LF, de Abreu Netto RL, de Moura Neto JP. Basic biochemical and hematological parameters of structural hemoglobin variants in the postpartum women and their respective newborn from Manaus, Amazonas, Brazil. BMC Pregnancy Childbirth 2022; 22:936. [PMID: 36522644 PMCID: PMC9756781 DOI: 10.1186/s12884-022-05143-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 10/21/2022] [Indexed: 12/23/2022] Open
Abstract
The present study aimed at estimating the prevalence of structural hemoglobinopathies in newborn and describing the hematological and biochemical characteristics between postpartum women (PW) and their respective newborns (NB) at a public maternity hospital in Manaus, Amazonas state, Brazil. In total, 825 NB and 820 PW were included in the study. Hematological and biochemical analysis and screening of structural hemoglobinopathies were performed and compared in groups of individuals (NICU or not; hemoglobin genotypes; gestational age and prenatal). The age of PW ranged from 13 to 44 years old (mean of 23.7 ± 6.6 years), with 45.9% pregnant for the first time and 54.1% multiparous. Reported receiving prenatal care 88% and regarding the type of delivery, 47.7% had delivered by cesarean section. Among the births, 19.4% were born premature and 8.3% were admission to the neonatal intensive care unit (NICU). The male NB represented 53.4% of the total. Sickle cell trait (FAS) was found in 16 (1.94%) and heterozygous for D hemoglobin (FAD) in 6 (0.73%) newborns. A statistically significant values was found between the previous history of miscarriage and increase of Mean corpuscular volume (MCV) (p < .001), Red blood cell distribution width (RDW) (p = .003), total and indirect bilirubin concentration (p < .001) and LDL cholesterol (p = .004). Hemoglobin levels below 13.5 g/dL was found in 66% black newborns, compared with 15% of Afro-Brazilian and 5% of whites. The frequency of structural hemoglobinopathies was higher in African-Brazilian newborn babies (78%) and those who with low birth weight had a higher frequency of NICU (35.7%). Interestingly, underage mothers had a higher frequency of NB with low birth weight and premature birth. Postpartum women who had children carriers of FAS and FAD had a higher frequency of urinary tract infection (65.2%) and moderate anemia (23.8%). This study estimated for the first time the prevalence of structural hemoglobinopathies in NB in Manaus, Amazonas, Brazil. Despite the small prevalence of, we highlight the importance of early diagnosis of hemoglobin variants, contributing to the improvement of the quality of life of PW and your NB, reinforce the need to implement educational and prevention programs to raise awareness among the population and in order to counsel parents regarding the probability of having a child with abnormal hemoglobins homozygous as HbSS or HbCC.
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Affiliation(s)
- Roberta da Silva Brito
- grid.512139.d0000 0004 0635 1549Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas Brazil
| | | | - Lilian Wallace Moreira
- grid.512139.d0000 0004 0635 1549Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas Brazil
| | - Regina Neves Normando
- grid.512139.d0000 0004 0635 1549Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas Brazil
| | - Thiago Bacha de Jesus
- grid.411181.c0000 0001 2221 0517Universidade Federal do Amazonas, Faculdade de Ciências Farmacêuticas, General Rodrigo Otávio Jordão Ramos Avenue, 6200 - Coroado I, Manaus, Amazonas CEP: 69067-005 Brazil
| | - Marilda de Souza Gonçalves
- grid.418068.30000 0001 0723 0931Fundação Oswaldo Cruz - Centro de Pesquisas Gonçalo Moniz, Salvador, Bahia Brazil
| | - Rajendranath Ramasawmy
- grid.418153.a0000 0004 0486 0972Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas Brazil
| | - Stéfani Ferreira de Oliveira
- grid.411181.c0000 0001 2221 0517Universidade Federal do Amazonas, Faculdade de Ciências Farmacêuticas, General Rodrigo Otávio Jordão Ramos Avenue, 6200 - Coroado I, Manaus, Amazonas CEP: 69067-005 Brazil
| | - Keyla Emanulle Ramos da Silva
- grid.411181.c0000 0001 2221 0517Universidade Federal do Amazonas, Faculdade de Ciências Farmacêuticas, General Rodrigo Otávio Jordão Ramos Avenue, 6200 - Coroado I, Manaus, Amazonas CEP: 69067-005 Brazil
| | - Nelson Abrahim Fraiji
- grid.512139.d0000 0004 0635 1549Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas Brazil
| | - Larissa Feitosa da Hora
- grid.411181.c0000 0001 2221 0517Universidade Federal do Amazonas, Faculdade de Ciências Farmacêuticas, General Rodrigo Otávio Jordão Ramos Avenue, 6200 - Coroado I, Manaus, Amazonas CEP: 69067-005 Brazil
| | - Rebeca Linhares de Abreu Netto
- grid.411181.c0000 0001 2221 0517Universidade Federal do Amazonas, Faculdade de Ciências Farmacêuticas, General Rodrigo Otávio Jordão Ramos Avenue, 6200 - Coroado I, Manaus, Amazonas CEP: 69067-005 Brazil
| | - José Pereira de Moura Neto
- grid.512139.d0000 0004 0635 1549Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas Brazil ,grid.411181.c0000 0001 2221 0517Universidade Federal do Amazonas, Faculdade de Ciências Farmacêuticas, General Rodrigo Otávio Jordão Ramos Avenue, 6200 - Coroado I, Manaus, Amazonas CEP: 69067-005 Brazil
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Freitas EJS, Gbadamassi AG, Ramasawmy R, Gonçalves MS, Neto JPM. INFLUENCE OF IL-6 VARIANTS TO BLOOD-TRANSFUSION NUMBERS IN HEART DISEASES. Hematol Transfus Cell Ther 2022. [DOI: 10.1016/j.htct.2022.09.1109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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de Mesquita TGR, Junior JDES, da Silva LDO, Silva GAV, de Araújo FJ, Pinheiro SK, Kerr HKA, da Silva LS, de Souza LM, de Almeida SA, Queiroz KLGD, de Souza JL, da Silva CC, Sequera HDG, de Souza MLG, Barbosa AN, Pontes GS, Guerra MVDF, Ramasawmy R. Distinct plasma chemokines and cytokines signatures in Leishmania guyanensis-infected patients with cutaneous leishmaniasis. Front Immunol 2022; 13:974051. [PMID: 36091007 PMCID: PMC9453042 DOI: 10.3389/fimmu.2022.974051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 08/08/2022] [Indexed: 11/17/2022] Open
Abstract
The immunopathology associated with Leishmaniasis is a consequence of inflammation. Upon infection with Leishmania, the type of host-immune response is determinant for the clinical manifestations that can lead to either self-healing or chronic disease. Multiple pathways may determine disease severity. A comparison of systemic immune profiles in patients with cutaneous leishmaniasis caused by L. guyanensis and healthy individuals with the same socio-epidemiological characteristics coming from the same endemic areas as the patients is performed to identify particular immune profile and pathways associated with the progression of disease development. Twenty-seven plasma soluble circulating factors were evaluated between the groups by univariate and multivariate analysis. The following biomarkers pairs IL-17/IL-9 (ρ=0,829), IL-17/IL-12 (ρ=0,786), IL-6/IL-1ra (ρ=0,785), IL-6/IL-12 (ρ=0,780), IL-1β/G-CSF (ρ=0,758) and IL-17/MIP-1β (ρ=0,754) showed the highest correlation mean among the patient while only INF-γ/IL-4 (ρ=0.740), 17/MIP-1β (ρ=0,712) and IL-17/IL-9 (ρ=0,707) exhibited positive correlation among the control group. The cytokine IL-17 and IL1β presented the greater number of positive pair correlation among the patients. The linear combinations of biomarkers displayed IP-10, IL-2 and RANTES as the variables with the higher discriminatory activity in the patient group compared to PDGF, IL-1ra and eotaxin among the control subjects. IP-10, IL-2, IL-1β, RANTES and IL-17 seem to be predictive value of progression to the development of disease among the Lg-infected individuals.
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Affiliation(s)
- Tirza Gabrielle Ramos de Mesquita
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Department of Molecular Biology, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - José do Espírito Santo Junior
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
| | | | - George Allan Villarouco Silva
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Felipe Jules de Araújo
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
| | - Suzana Kanawati Pinheiro
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Department of Molecular Biology, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | | | - Lener Santos da Silva
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Department of Molecular Biology, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - Luciane Macedo de Souza
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
| | | | | | - Josué Lacerda de Souza
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
| | - Cilana Chagas da Silva
- Department of Molecular Biology, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - Héctor David Graterol Sequera
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Department of Molecular Biology, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - Mara Lúcia Gomes de Souza
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Department of Molecular Biology, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | | | - Gemilson Soares Pontes
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Department of Virology, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil
- Genomic Health Surveillance Network: Optimization of Assistance and Research in The State of Amazonas – REGESAM, Manaus, Amazonas, Brazil
| | - Marcus Vinitius de Farias Guerra
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Department of Molecular Biology, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Brazil
- Department of Molecular Biology, Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
- Genomic Health Surveillance Network: Optimization of Assistance and Research in The State of Amazonas – REGESAM, Manaus, Amazonas, Brazil
- *Correspondence: Rajendranath Ramasawmy,
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Ferreira NS, Mathias JLS, Albuquerque SRL, Almeida ACG, Dantas AC, Anselmo FC, Lima ES, Lacerda MVG, Nogueira PA, Ramasawmy R, Gonçalves MS, Moura Neto JP. Duffy blood system and G6PD genetic variants in vivax malaria patients from Manaus, Amazonas, Brazil. Malar J 2022; 21:144. [PMID: 35527254 PMCID: PMC9080172 DOI: 10.1186/s12936-022-04165-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 04/20/2022] [Indexed: 11/18/2022] Open
Abstract
Background Over a third of the world’s population is at risk of Plasmodium vivax-induced malaria. The unique aspect of the parasite’s biology and interactions with the human host make it harder to control and eliminate the disease. Glucose-6-phosphate dehydrogenase (G6PD) deficiency and Duffy-negative blood groups are two red blood cell (RBC) variations that can confer protection against malaria. Methods Molecular genotyping of G6PD and Duffy variants was performed in 225 unrelated patients (97 with uncomplicated and 128 with severe vivax malaria) recruited at a Reference Centre for Infectious Diseases in Manaus. G6PD and Duffy variants characterizations were performed using Real Time PCR (qPCR) and PCR–RFLP, respectively. Results The Duffy blood group system showed a phenotypic distribution Fy(a + b−) of 70 (31.1%), Fy(a + b +) 96 (42.7%), Fy(a−b +) 56 (24.9%) and Fy(a−b−) 1 (0.44%.) The genotype FY*A/FY*B was predominant in both uncomplicated (45.3%) and severe malaria (39.2%). Only one Duffy phenotype Fy(a-b) was found and this involved uncomplicated vivax malaria. The G6PD c.202G > A variant was found in 11 (4.88%) females and 18 (8.0%) males, while c.376A > G was found in 20 females (8.88%) and 23 (10.22%) male patients. When combined GATA mutated and c.202G > A and c.376A > G mutated, was observed at a lower frequency in uncomplicated (3.7%) in comparison to severe malaria (37.9%). The phenotype Fy(a−b +) (p = 0.022) with FY*B/FY*B (p = 0.015) genotype correlated with higher parasitaemia. Conclusions A high prevalence of G6PD c202G > A and c.376A > G and Duffy variants is observed in Manaus, an endemic area for vivax malaria. In addition, this study reports for the first time the Duffy null phenotype Fy(a-b-) in the population of the Amazonas state. Moreover, it is understood that the relationship between G6PD and Duffy variants can modify clinical symptoms in malaria caused by P. vivax and this deserves to be further investigated and explored among this population. Supplementary Information The online version contains supplementary material available at 10.1186/s12936-022-04165-y.
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Vital WDS, Santos FJDA, Gonçalves MLF, Wyrepkowski CDC, Ramasawmy R, Furtado SDC. Influence of the presence of mannose-binding lectin polymorphisms on the occurrence of leishmaniasis: a systematic review and meta-analysis. An Bras Dermatol 2022; 97:298-306. [PMID: 35331599 PMCID: PMC9133304 DOI: 10.1016/j.abd.2021.08.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 07/31/2021] [Accepted: 08/03/2021] [Indexed: 11/25/2022] Open
Abstract
Background Leishmaniasis is caused by an intracellular protozoan of the Leishmania genus. Mannose-binding lectin (MBL) is a serum complement protein and recognizes lipoprotein antigens in protozoa and the bacterial plasma membrane. Nucleotide variants in the promoter region and exon 1 of the MBL gene can influence its expression or change its molecular structure. Objective To evaluate, through a systematic review, case-control studies of the genetic association of variants in the MBL2 gene and the risk of developing leishmaniasis. Methods This review carried out a search in PubMed, Science Direct, Cochrane Library, Scopus and Lilacs databases for case-control publications with six polymorphisms in the mannose-binding Lectin gene. The following strategy was used: P = Patients at risk of leishmaniasis; I = Presence of polymorphisms; C = Absence of polymorphisms; O = Occurrence of leishmaniasis. Four case/control studies consisting of 791 patients with leishmaniasis and 967 healthy subjects (Control) are included in this meta-analysis. The association of variants in the mannose-binding Lectin gene and leishmaniasis under the allelic genetic model, -550 (Hvs. L), -221 (X vs. Y), +4 (Q vs. P), CD52 (A vs. D), CD54 (A vs. B), CD57 (A vs. C) and A/O genotype (A vs. O) was evaluated. International Prospective Register of Systematic Reviews (PROSPERO): CRD42020201755. Results The meta-analysis results for any allelic genetic model showed no significant association for the variants within the promoter, the untranslated region, and exon 1, as well as for the wild-type A allele and mutant allele O with leishmaniasis. Study limitations Caution should be exercised when interpreting these results, as they are based on a few studies, which show divergent results when analyzed separately. Conclusions This meta-analysis showed a non-significant association between the rs11003125, rs7096206, rs7095891, rs5030737, rs1800450, and rs1800451 polymorphisms of the Mannose-binding Lectin gene and leishmaniasis in any allelic and heterogeneous evaluation.
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de Mesquita TGR, Junior JDES, de Lacerda TC, Queiroz KLGD, Júnior CMDS, Neto JPDM, Gomes LAM, de Souza MLG, Guerra MVDF, Ramasawmy R. Variants of MIRNA146A rs2910164 and MIRNA499 rs3746444 are associated with the development of cutaneous leishmaniasis caused by Leishmania guyanensis and with plasma chemokine IL-8. PLoS Negl Trop Dis 2021; 15:e0009795. [PMID: 34543271 PMCID: PMC8483412 DOI: 10.1371/journal.pntd.0009795] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 09/30/2021] [Accepted: 09/07/2021] [Indexed: 12/31/2022] Open
Abstract
Leishmania are intracellular protozoan parasites that cause a wide spectrum of clinical manifestations in genetically susceptible individuals with an insufficient or balanced Th1 immune response to eliminate the parasite. MiRNAs play important regulatory role in numerous biological processes including essential cellular functions. miR146-a acts as an inhibitor of interleukin 1 receptor associated kinase 1 (IRAK1) and tumour necrosis factor (TNF) receptor associated factor 6 (TRAF6) present in the toll-like receptors pathway while miR499a modulates TGF-β and TNF signalling pathways. Here, we investigated whether MIRNA146A rs2910164 and MIRNA499 rs3746444 variants are associated with the development of L. guyanensis (Lg)-cutaneous leishmaniasis (CL). The variants MIR146A rs2910164 and MIR499A rs3746444 were assessed in 850 patients with Lg-CL and 891 healthy controls by polymerase chain reaction and restriction fragment length polymorphism (PCR-RFLP). Plasma cytokines were measured using the BioPlex assay. Carriers of rs2910164 CC genotype have 30% higher odds of developing CL (ORadjage/sex = 1.3 [95%CI 0.9–1.8]; Padjage/sex 0.14) compared to individuals with the genotype GG (ORadjage/sex = 0.77 [95%CI 0.56–1.0]; Padjage/sex 0.14) if exposed to Lg-infection. Heterozygous GC individuals also showed lower odds of developing CL (ORadjage/sex = 0.77 [95%CI 0.5–1.1]; Padjage/sex 0.09). Homozygosity for the allele C is suggestive of an association with the development of Lg-CL among exposed individuals to Lg-infection. However, the odds of developing CL associated with the CC genotype was evident only in male individuals (ORadjage = 1.3 [95% CI = 0.9–2.0]; Padjage = 0.06). Individuals homozygous for the G allele tend to have higher plasma IL-8 and CCL5. Similarly, for the MIR499A rs3746444, an association with the G allele was only observed among male individuals (OR = 1.4 [1.0–1.9]; P = 0.009). In a dominant model, individuals with the G allele (GG-GA) when compared to the AA genotype reveals that carriers of the G allele have 40% elevated odds of developing Lg-CL (ORadjage = 1.4 [1.1–1.9]). Individuals with the GG genotype have higher odds of developing Lg-CL (ORadjage/sex = 2.0 [95%CI 0.83–5.0]; Padjage = 0.01. Individuals homozygous for the G allele have higher plasma IL-8. Genetic combinations of both variants revealed that male individuals exposed to Lg bearing three or four susceptible alleles have higher odds of developing Lg-CL (OR = 2.3 [95% CI 1.0–4.7]; p = 0.017). Both MIR146A rs2910164 and MIR499A rs3746444 are associated with the development of Lg-CL and this association is prevalent in male individuals. Leishmaniasis is caused by infection with Leishmania parasites. In regions with the presence of Leishmania parasites, all people do not develop the disease despite similar exposure. Only a proportion of inhabitants progress to the development of disease. Clinical manifestations depend on the vector and Leishmania species, as well the host genetic background and genetically determined immune responses. miRNAs play important roles in regulating gene expression and many biological processes including immune pathways. miR-146a targets TRAF6 and IRAK1 genes, that encode key adaptor molecules downstream of toll-like receptors (TLRs). TLRs are critical in immune response to Leishmania-infection. miR499-a modulates inflammation-related signalling pathways such as TGFβ, TNFα and TLR pathways. In this study, we showed that MIR146A and MIR499A variants are risk factors to developing cutaneous leishmaniasis caused by L. guyanensis in Amazonas state of Brazil. Individuals with these variants are susceptible to the development of CL.
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Affiliation(s)
- Tirza Gabrielle Ramos de Mesquita
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - José do Espírito Santo Junior
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | - Thais Carneiro de Lacerda
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | | | | | | | | | | | - Marcus Vinitius de Farias Guerra
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Genomic Health Surveillance Network: Optimization of Assistance and Research in The State of Amazonas–REGESAM, Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Amazonas, Brazil
- Genomic Health Surveillance Network: Optimization of Assistance and Research in The State of Amazonas–REGESAM, Manaus, Amazonas, Brazil
- * E-mail:
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Magalhães L, Silveira H, Prestes S, Costa Magalhães LK, Santana RA, Ramasawmy R, Oliveira J, Roque CCR, Silva Junior RCA, Fé N, Duarte R, Maciel M, Ortiz J, Morais R, Monteiro WM, Guerra JA, Barbosa Guerra MGV. Bioecological aspects of triatomines and marsupials as wild Trypanosoma cruzi reservoirs in urban, peri-urban and rural areas in the Western Brazilian Amazon. Med Vet Entomol 2021; 35:389-399. [PMID: 33394514 DOI: 10.1111/mve.12507] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 06/12/2023]
Abstract
In the Amazon region, Trypanosoma cruzi transmission cycles involve a great diversity of Triatominae vectors and mammal reservoirs. Some Rhodnius spp. mainly inhabit palm trees that act as microhabitats for hosts and vectors. The current study aimed to describe aspects of the bio-ecology of the vectors and reservoirs of T. cruzi in relation to human populations resident near areas with large quantities of palm trees, in rural, peri-urban and urban collection environments, located in the Western Brazilian Amazon. Rhodnius pictipes and Didelphis marsupialis were respectively the most predominant vector and reservoir, with rates of 71% for R. pictipes and 96.5% for D. marsupialis. The vast majority of T. cruzi isolates clustered with TcI. The most prevalent haplotype was TcI COII1 (69.7%). Mauritia flexuosa and Attalea phalerata were the main ecological indicators of infestation by triatomines. Birds were the most common food source (27,71%). T. cruzi isolated from R. robustus has the haplotype HUM-13, previously detected in a chronic Chagas patient living in the same area. Our results demonstrate the relevance of this study, with the occurrence of elevated infection rates in animals, and suggest the importance of the Amazon zones where there is a risk of infection in humans.
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Affiliation(s)
- L Magalhães
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
| | - H Silveira
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
- Global Health and Tropical Medicine, GHTM, Instituto de Higiene e Medicina Tropical, IHMT, Universidade Nova de Lisboa, UNL, Lisboa, Portugal
| | - S Prestes
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
| | - L K Costa Magalhães
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
| | - R A Santana
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
| | - R Ramasawmy
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
| | - J Oliveira
- Fundação de Medicina Tropical - Heitor Vieira Dourado, Amazonas, Brasil
| | - C C R Roque
- Fundação de Medicina Tropical - Heitor Vieira Dourado, Amazonas, Brasil
| | | | - N Fé
- Fundação de Medicina Tropical - Heitor Vieira Dourado, Amazonas, Brasil
| | - R Duarte
- Fundação Oswaldo Cruz, Escola Nacional de Saúde Pública (ENSP), Rio de Janeiro, Brasil
| | - M Maciel
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
| | - J Ortiz
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
| | - R Morais
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
| | - W M Monteiro
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
- Fundação de Medicina Tropical - Heitor Vieira Dourado, Amazonas, Brasil
| | - J A Guerra
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
- Fundação de Medicina Tropical - Heitor Vieira Dourado, Amazonas, Brasil
| | - M G V Barbosa Guerra
- Programa de Pós-graduação em Medicina Tropical, Unversidade do Estado do Amazonas, Amazonas, Brasil
- Fundação de Medicina Tropical - Heitor Vieira Dourado, Amazonas, Brasil
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11
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Souza de Lima D, Fadoul de Brito C, Cavalcante Barbosa AR, Brasil de Andrade Figueira M, Maciel Bonet JC, Walzer J, Ramasawmy R, Ogusku MM, Sadahiro A, Boechat AL. A genetic variant in the TRAF1/C5 gene lead susceptibility to active pulmonary tuberculosis by decreased TNF-α levels. Microb Pathog 2021; 159:105117. [PMID: 34363926 DOI: 10.1016/j.micpath.2021.105117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 07/03/2021] [Accepted: 07/27/2021] [Indexed: 11/26/2022]
Abstract
Host genetics are important to consider in the role of resistance or susceptibility for developing active pulmonary tuberculosis (TB). Several association studies have reported the role of variants in STAT4 and TRAF1/C5 as risk factors to autoimmune diseases. Nevertheless, more data is needed to elucidate the role of these gene variants in infectious disease. Our data reports for the first time, variant rs10818488 in the TRAF1/C5 gene (found 47% of the population worldwide), is associated with susceptibility (OR = 1.51) to development TB. Multivariate analysis evidenced association between rs10818488 TRAF1/C5 and risk to multibacillary TB (OR = 4.18), confers increased bacteria load in the lung, indicates a decreased ability to control pathogen levels in the lung, and spread of the pathogen to new hosts. We showed that the "loss-of-function" variant in TRAF1/C5 led to susceptibility for TB by decreased production of TNF-α. Our results suggest the role of variant TRAF1/C5 in susceptibility to TB as well as in clinical presentation of multibacillary TB.
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Affiliation(s)
| | - Carolina Fadoul de Brito
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
| | - Aguyda Rayany Cavalcante Barbosa
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
| | - Mariana Brasil de Andrade Figueira
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
| | - Julio César Maciel Bonet
- Laboratório de Imunologia Molecular, Departamento de Parasitologia, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
| | - Joseph Walzer
- University of Vermont, Department of Pathology&Laboratory Medicine, USA
| | - Rajendranath Ramasawmy
- Fundação de Medicina Tropical Doutor Heitor Vieira Doutorado (FMT/HVD), Manaus, AM, Brazil; Universidade Nilton Lins, Manaus, AM, Brazil
| | - Mauricio Morishi Ogusku
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, AM, Brazil
| | - Aya Sadahiro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil; Laboratório de Imunologia Molecular, Departamento de Parasitologia, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
| | - Antonio Luiz Boechat
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil.
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12
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Malheiro A, Ramasawmy R, Courtin D, Donadi EA. Editorial: The Role of Gene Polymorphisms in Modulating the Immune Responses Against Tropical Infectious Diseases. Front Immunol 2021; 12:714237. [PMID: 34367183 PMCID: PMC8339431 DOI: 10.3389/fimmu.2021.714237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 07/05/2021] [Indexed: 11/30/2022] Open
Affiliation(s)
- Adriana Malheiro
- Departamento de Parasitologia, Programa de Pós-graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil.,Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Laboratório de Genômica-Rede Regesam, Manaus, Brazil
| | - Rajendranath Ramasawmy
- Faculdade de Medicina, Universidade Nilton Lins, Manaus, Brazil.,Fundacão de Medicina Tropical-Doutor Heitor Vieira Dourado, Manaus, Brazil
| | - David Courtin
- UMR 261 MERIT, Université de Paris, Institut de Recherche pour le Développement (IRD), Paris, France
| | - Eduardo Antonio Donadi
- Division of Clinical Immunology, Department of Medicine, Ribeirão Preto Medical School, University of São Paulo (USP), Ribeirão Preto, Brazil
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13
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Toro DM, Ramasawmy R, Silva Neto PV, Pereira GL, Sarmento PS, Dray HLSN, Sousa KS, Affonso JS, Silva JA, Garcia NP, Barbieri MV, Victória FS, Donadi EA, Costa AG, Ogusku MM, Sadahiro A, Tarragô AM, Malheiro A. Inflammasome genes polymorphisms may influence the development of hepatitis C in the Amazonas, Brazil. PLoS One 2021; 16:e0253470. [PMID: 34161370 PMCID: PMC8221483 DOI: 10.1371/journal.pone.0253470] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 06/06/2021] [Indexed: 12/31/2022] Open
Abstract
Hepatitis C is considered a major public health problem caused by the hepatitis C virus (HCV). Viral infections are known to induce production of IL1β through the signaling pathway of inflammasomes. Emerging evidences suggest that Inflammasome genes may influence the immune response against HCV as the host genetic background may contribute to the balance between acute and chronic inflammation. We investigated in 151 patients with chronic hepatitis C and 206 healthy blood donors’ individuals (HD). Polymorphisms in the IL1B and IL18 genes were genotyped by PCR-RFLP, while NLRP3, CARD8, CTSB and AIM2 by RT- PCR. Serum assay of IL-1β cytokine was performed by ELISA. 84 patients presented mild fibrosis (<F2) and 67 advanced fibrosis (≥ F2). Among the HD individuals the NLRP3-rs10754558 C/C genotype correlated with higher IL-1β levels compared to the G/G genotype. Similar pattern was observed in patients with hepatitis C, mean circulating IL-1β levels were 21,96 ± 4.5 and 10,62 ± 3.3pg/mL among the C/C and G/G genotypes, respectively. This pattern holds even after stratification of the patients into mild fibrosis and advanced fibrosis, demonstrating that the NLRP3-rs10754558 or another polymorphism in linkage disequilibrium with it possibly has an influence on the processing of pro-IL-1β. Notably, higher levels of IL-1β (Mann–Whitney test, p<0.0001) were observed among patients (mean ± SEM: 19,24 ±3.pg/mL) when compared with controls (mean ± SEM: 11,80 ±1.0pg/mL). Gene-gene interaction showed that individuals heterogyzotes for both CARD8-rs2009373 and IL1B-rs16944 are less prone to hepatitis C development (padj = 0.039). Similarly, herozygote carriers for CTSB-rs1692816 and AIM2-rs1103577 (padj = 0.008) or for IL18-rs187238 and NLRP3-rs10754558 (padj = 0.005), have less chances to the development of hepatitis C. However, between subgroups of <F2 and ≥F2, individuals homozygous for the T allele of CARD8-rs2009373 and heterozygous for IL18-rs187238 (padj = 0.028), have mild form of fibrosis.
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Affiliation(s)
- Diana Mota Toro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Faculdade de Medicina, Universidade Nilton Lins, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
| | - Pedro Vieira Silva Neto
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Grenda Leite Pereira
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Priscila Santos Sarmento
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | | | - Keyla Santos Sousa
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - Juliana Santos Affonso
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - Jéssica Albuquerque Silva
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
| | - Nadja Pinto Garcia
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
| | - Marilú Victória Barbieri
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Flamir Silva Victória
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Eduardo Antônio Donadi
- Programa de Pós-graduação em Imunologia Básica e Aplicada, Faculdade de Medicina da Universidade de São Paulo, Ribeirão Preto, São Paulo, Brazil
| | - Allyson Guimarães Costa
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Escola de Enfermagem de Manaus, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- * E-mail: (AGC); (AM)
| | - Mauricio Morishi Ogusku
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - Aya Sadahiro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
| | - Andréa Monteiro Tarragô
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - Adriana Malheiro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Genomic Health Surveilance Network: Optimization os Assistance and Research in The State of Amazonas -REGESAM, Manaus, Amazonas, Brazil
- Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, Amazonas, Brazil
- Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- * E-mail: (AGC); (AM)
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14
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da Silva LS, Santo JDE, de Mesquita TGR, Santos VAM, de Souza JL, de Araújo FJ, da Silveira CM, da Silva CC, Queiroz KLGD, Sequera HDG, Guerra MVDF, de Souza MLG, Ramasawmy R. IL-23R variant rs11805303 is associated with susceptibility to the development of cutaneous leishmaniasis in Leishmania guyanensis-infected individuals. J Infect Dis 2021; 225:163-171. [PMID: 34139757 DOI: 10.1093/infdis/jiab320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/15/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND Emerging evidence suggests that the IL-17/IL-23 axis may play a role in the pathogenesis of leishmaniasis. Our aim was to investigate whether the IL-23R variant rs11805303 is a risk factor for the development of cutaneous leishmaniasis (CL) in Leishmania guyanensis-infected individuals. METHODS We genotyped by polymerase chain reaction-restriction fragment length polymorphism the rs11805303 C/T in 828 patients with CL and 806 healthy individuals. Plasma TNF-α, IL-6, IFG-γ, IL-1β and IL-17 were measured with the Bioplex assay. RESULTS The distribution of the genotypes differed between patients with CL and HC with a common odds ratio (OR) of 1.78 (p = 2.2 x10 -11) for the disease-associated T allele. L. guyanensis-infected individuals homozygous for the T allele show a 200% increased risk of progressing to disease development, with a 95% confidence interval (CI) ranging from 81% to 400% (P = 9.9 x 10 -6) in comparison to individuals homozygous for the C allele. Males homozygous for the T allele have higher plasma levels of IL-17 compared with heterozygous or homozygous CC individuals. CONCLUSION The present association of the IL-23R variant rs11805303 with the development of cutaneous leishmaniasis suggests that the IL-17/IL-23 axis may play an important role in the pathogenesis of CL.
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Affiliation(s)
- Lener Santos da Silva
- Fundação de , Medicina Tropical Dr Heitor Viera Dourado, Manaus, Amazona, Brazil.,PPGMT, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - José do Espírito Santo
- Fundação de , Medicina Tropical Dr Heitor Viera Dourado, Manaus, Amazona, Brazil.,PPGIBA, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Tirza Gabrielle Ramos de Mesquita
- Fundação de , Medicina Tropical Dr Heitor Viera Dourado, Manaus, Amazona, Brazil.,PPGMT, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | | | - Josué Lacerda de Souza
- Fundação de , Medicina Tropical Dr Heitor Viera Dourado, Manaus, Amazona, Brazil.,PPGIBA, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
| | - Felipe Jules de Araújo
- Fundação de , Medicina Tropical Dr Heitor Viera Dourado, Manaus, Amazona, Brazil.,PPGMT, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | | | | | | | - Héctor David Graterol Sequera
- Fundação de , Medicina Tropical Dr Heitor Viera Dourado, Manaus, Amazona, Brazil.,PPGMT, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | | | | | - Rajendranath Ramasawmy
- Fundação de , Medicina Tropical Dr Heitor Viera Dourado, Manaus, Amazona, Brazil.,PPGMT, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil.,PPGIBA, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Faculdade de Medicina, Universidade Nilton Lins, Manaus, Amazonas, Brazil
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15
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Figueira MBDA, de Lima DS, Boechat AL, Filho MGDN, Antunes IA, Matsuda JDS, Ribeiro TRDA, Felix LS, Gonçalves ASF, da Costa AG, Ramasawmy R, Pontillo A, Ogusku MM, Sadahiro A. Single-Nucleotide Variants in the AIM2 - Absent in Melanoma 2 Gene (rs1103577) Associated With Protection for Tuberculosis. Front Immunol 2021; 12:604975. [PMID: 33868225 PMCID: PMC8047195 DOI: 10.3389/fimmu.2021.604975] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 03/03/2021] [Indexed: 11/17/2022] Open
Abstract
Tuberculosis (TB) remains a serious public health burden worldwide. TB is an infectious disease caused by the Mycobacterium tuberculosis Complex. Innate immune response is critical for controlling mycobacterial infection. NOD-like receptor pyrin domain containing 3/ absent in melanoma 2 (NLRP3/AIM2) inflammasomes are suggested to play an important role in TB. NLRP3/AIM2 mediate the release of pro-inflammatory cytokines IL-1β and IL-18 to control M. tuberculosis infection. Variants of genes involved in inflammasomes may contribute to elucidation of host immune responses to TB infection. The present study evaluated single-nucleotide variants (SNVs) in inflammasome genes AIM2 (rs1103577), CARD8 (rs2009373), and CTSB (rs1692816) in 401 patients with pulmonary TB (PTB), 133 patients with extrapulmonary TB (EPTB), and 366 healthy control (HC) subjects with no history of TB residing in the Amazonas state. Quantitative Real Time PCR was performed for allelic discrimination. The SNV of AIM2 (rs1103577) is associated with protection for PTB (padj: 0.033, ORadj: 0.69, 95% CI: 0.49-0.97). CTSB (rs1692816) is associated with reduced risk for EPTB when compared with PTB (padj: 0.034, ORadj: 0.50, 95% CI: 0.27-0.94). Serum IL-1β concentrations were higher in patients with PTB than those in HCs (p = 0,0003). The SNV rs1103577 of AIM2 appeared to influence IL-1β release. In a dominant model, individuals with the CC genotype (mean 3.78 ± SD 0.81) appeared to have a higher level of IL-1β compared to carriers of the T allele (mean 3.45 ± SD 0.84) among the patients with PTB (p = 0,0040). We found that SNVs of AIM2 and CTSB were associated with TB, and the mechanisms involved in this process require further study.
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Affiliation(s)
- Mariana Brasil de Andrade Figueira
- Laboratório de Imunologia Molecular, Departamento de Parasitologia, Universidade Federal do Amazonas (UFAM), Manaus, Brazil.,Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil
| | - Dhêmerson Souza de Lima
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas (ICB), Universidade de São Paulo (USP), São Paulo, Brazil
| | - Antonio Luiz Boechat
- Laboratório de Imunologia Molecular, Departamento de Parasitologia, Universidade Federal do Amazonas (UFAM), Manaus, Brazil.,Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil
| | | | | | | | | | - Luana Sousa Felix
- Laboratório de Imunologia Molecular, Departamento de Parasitologia, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
| | - Ariane Senna Fonseca Gonçalves
- Laboratório de Imunologia Molecular, Departamento de Parasitologia, Universidade Federal do Amazonas (UFAM), Manaus, Brazil
| | - Allyson Guimarães da Costa
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil.,Diretoria de Ensino e Pesquisa, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil.,Instituto de Pesquisa Clínica Carlos Borborema, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Brazil.,Faculdade de Medicina Nilton Lins, Universidade Nilton Lins, Manaus, Brazil
| | - Alessandra Pontillo
- Laboratório de Imunogenética, Departamento de Imunologia, Instituto de Ciências Biomédicas (ICB), Universidade de São Paulo (USP), São Paulo, Brazil
| | - Mauricio Morishi Ogusku
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Aya Sadahiro
- Laboratório de Imunologia Molecular, Departamento de Parasitologia, Universidade Federal do Amazonas (UFAM), Manaus, Brazil.,Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil
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16
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da Silva GAV, Mesquita TG, Souza VC, Junior JDES, Gomes de Souza ML, Talhari AC, Talhari S, Naveca FG, Ramasawmy R. A Single Haplotype of IFNG Correlating With Low Circulating Levels of Interferon-γ Is Associated With Susceptibility to Cutaneous Leishmaniasis Caused by Leishmania guyanensis. Clin Infect Dis 2021; 71:274-281. [PMID: 31722386 DOI: 10.1093/cid/ciz810] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 08/22/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Interferon-γ (IFN-γ) plays an important role in the control of Leishmania infection. Blockade of IFN-γ signaling in mice increases lesion size and parasite load. In endemic areas of Leishmaniasis, only a fraction of the population develop the disease. This suggest that host genetics may play a role in this response. We investigated whether single nucleotide polymorphisms (SNPs) in IFNG may be associated with elevated or decrease risk in the development of cutaneous leishmaniasis (CL). METHODS We assessed 9 SNP and cytosine-adenine (CA) repeats in IFNG by nucleotide sequencing in 647 patients with CL caused by Leishmania guyanensis and 629 controls. Circulating plasma IFN-γ levels were also assayed in 400 patients with CL and 400 controls. RESULTS The rs2069705TT genotype is associated with elevated risk of developing CL compared with the rs2069705CC genotype (OR, 1.7; 95% CI, 1.3-2.4; P = .0008). There is a 70% chance that this genotype raises the risk of developing CL. In a dominant model, carriers of the rs2069705T allele compared with the rs2069705CC genotype showed a 50% (range, 20-100%) increased risk of developing CL (OR, 1.5; 95% CI, 1.2-2.0; P = .0004). Haplotype analysis showed 1 haplotype (H1) associated with low levels of IFN-γ presented an increased risk of 60% of developing CL (OR, 1.6; 95% CI, 1.3-1.9; P = 5 × 10-5) compared with non-H1. CONCLUSIONS IFNG variant rs2069705 seems to be a genetic modifier of clinical outcome of Leishmania infection; individuals with the H1 haplotype, associated with low levels of IFN-γ, have a 60% risk of developing CL.
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Affiliation(s)
- George A V da Silva
- Programa de Pos-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Amazonas, Manaus, Brazil
| | - Tirza G Mesquita
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Amazonas, Manaus, Brazil
| | - Victor C Souza
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Amazonas, Manaus, Brazil
| | - José do Espírito Santo Junior
- Programa de Pos-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Amazonas, Manaus, Brazil
| | | | | | - Sinésio Talhari
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil.,Faculdade de Medicina, Universidade Nilton Lins, Amazonas, Manaus, Brazil
| | - Felipe G Naveca
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Amazonas, Manaus, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pos-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Amazonas, Manaus, Brazil.,Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil.,Faculdade de Medicina, Universidade Nilton Lins, Amazonas, Manaus, Brazil
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17
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Costa AG, Chaves YO, Teixeira-Carvalho A, Ramasawmy R, Antonelli LRV, Barbosa L, Balieiro A, Monteiro WM, Mourão MP, Lacerda MVG, Martins-Filho OA, Costa FTM, Malheiro A, Nogueira PA. Increased platelet distribution width and reduced IL-2 and IL-12 are associated with thrombocytopenia in Plasmodium vivax malaria. Mem Inst Oswaldo Cruz 2020; 115:e200080. [PMID: 32696915 PMCID: PMC7367212 DOI: 10.1590/0074-02760200080] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 06/26/2020] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Thrombocytopenia in malaria involves platelet destruction and consumption; however, the cellular response underlying this phenomenon has still not been elucidated. OBJECTIVE To find associations between platelet indices and unbalanced Th1/Th2/Th17 cytokines as a response to thrombocytopenia in Plasmodium vivax infected (Pv-MAL) patients. METHODS Platelet counts and quantification of Th1/Th2/Th17 cytokine levels were compared in 77 patients with uncomplicated P. vivax malaria and 37 healthy donors from the same area (endemic control group - ENCG). FINDINGS Thrombocytopenia was the main manifestation in 55 patients, but was not associated with parasitaemia. The Pv-MAL patients showed increases in the mean platelet volume (MPV), which may be consistent with larger or megaplatelets. Contrary to the findings regarding the endemic control group, MPV and platelet distribution width (PDW) did not show an inverse correlation, due the increase in the heterogeneity of platelet width. In addition, the Pv-MAL patients presented increased IL-1β and reduced IL-12p70 and IL-2 serum concentrations. Furthermore, the reduction of these cytokines was associated with PDW values. MAIN CONCLUSIONS Our data demonstrate that an increase in MPV and the association between reductions of IL-2 and IL-12 and PDW values may be an immune response to thrombocytopenia in uncomplicated P. vivax malaria.
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Affiliation(s)
- Allyson Guimarães Costa
- Universidade do Estado do Amazonas, Programa de Pós-Graduação em Medicina Tropical, Manaus, AM, Brasil.,Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Instituto de Pesquisa Clínica Carlos Borborema, Manaus, AM, Brasil.,Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Diretoria de Ensino e Pesquisa, Manaus, AM, Brasil.,Universidade do Estado do Amazonas, Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Manaus, AM, Brasil.,Universidade Federal do Amazonas, Programa de Pós-Graduação em Imunologia Básica e Aplicada, Manaus, AM, Brasil
| | - Yury Oliveira Chaves
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas e Maria Deane, Programa de Pós-Graduação em Biologia da Relação Patógeno-Hospedeiro, Manaus, AM, Brasil.,Fundação Oswaldo Cruz-Fiocruz, Instituto Oswaldo Cruz, Programa de Pós-Graduação em Biologia Parasitária, Rio de Janeiro, RJ, Brasil
| | - Andréa Teixeira-Carvalho
- Fundação Oswaldo Cruz-Fiocruz, Centro de Pesquisas René Rachou, Grupo Integrado de Pesquisas em Biomarcadores, Belo Horizonte, MG, Brasil
| | - Rajendranath Ramasawmy
- Universidade do Estado do Amazonas, Programa de Pós-Graduação em Medicina Tropical, Manaus, AM, Brasil.,Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Instituto de Pesquisa Clínica Carlos Borborema, Manaus, AM, Brasil.,Universidade Federal do Amazonas, Programa de Pós-Graduação em Imunologia Básica e Aplicada, Manaus, AM, Brasil.,Universidade Nilton Lins, Faculdade de Medicina, Manaus, AM, Brasil
| | - Lis Ribeiro Valle Antonelli
- Fundação Oswaldo Cruz-Fiocruz, Instituto René Rachou, Laboratório de Biologia e Imunologia de Doenças Infecciosas e Parasitárias, Belo Horizonte, MG, Brasil
| | - Lucas Barbosa
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas e Maria Deane, Programa de Pós-Graduação em Biologia da Relação Patógeno-Hospedeiro, Manaus, AM, Brasil
| | - Antonio Balieiro
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas e Maria Deane, Programa de Pós-Graduação em Biologia da Relação Patógeno-Hospedeiro, Manaus, AM, Brasil
| | - Wuelton Marcelo Monteiro
- Universidade do Estado do Amazonas, Programa de Pós-Graduação em Medicina Tropical, Manaus, AM, Brasil.,Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Instituto de Pesquisa Clínica Carlos Borborema, Manaus, AM, Brasil
| | - Maria Paula Mourão
- Universidade do Estado do Amazonas, Programa de Pós-Graduação em Medicina Tropical, Manaus, AM, Brasil.,Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Instituto de Pesquisa Clínica Carlos Borborema, Manaus, AM, Brasil
| | - Marcus Vinicius Guimarães Lacerda
- Universidade do Estado do Amazonas, Programa de Pós-Graduação em Medicina Tropical, Manaus, AM, Brasil.,Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Instituto de Pesquisa Clínica Carlos Borborema, Manaus, AM, Brasil.,Universidade do Estado do Amazonas, Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Manaus, AM, Brasil.,Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas e Maria Deane, Programa de Pós-Graduação em Biologia da Relação Patógeno-Hospedeiro, Manaus, AM, Brasil
| | - Olindo Assis Martins-Filho
- Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Diretoria de Ensino e Pesquisa, Manaus, AM, Brasil.,Fundação Oswaldo Cruz-Fiocruz, Centro de Pesquisas René Rachou, Grupo Integrado de Pesquisas em Biomarcadores, Belo Horizonte, MG, Brasil
| | | | - Adriana Malheiro
- Universidade do Estado do Amazonas, Programa de Pós-Graduação em Medicina Tropical, Manaus, AM, Brasil.,Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Diretoria de Ensino e Pesquisa, Manaus, AM, Brasil.,Universidade do Estado do Amazonas, Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Manaus, AM, Brasil.,Universidade Federal do Amazonas, Programa de Pós-Graduação em Imunologia Básica e Aplicada, Manaus, AM, Brasil
| | - Paulo Afonso Nogueira
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas e Maria Deane, Programa de Pós-Graduação em Biologia da Relação Patógeno-Hospedeiro, Manaus, AM, Brasil
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18
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Martins VDCA, Cunha IW, Figliuolo G, Rondon HHDMF, de Souza PM, Torres Silva FL, Torres Silva GL, de Souza Bastos M, de Castro DB, Santana MF, Ramasawmy R, Levi JE, Torres KL. Presence of HPV with overexpression of p16INK4a protein and EBV infection in penile cancer-A series of cases from Brazil Amazon. PLoS One 2020; 15:e0232474. [PMID: 32374757 PMCID: PMC7202603 DOI: 10.1371/journal.pone.0232474] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 04/15/2020] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND In Brazil, penile cancer (PC) is not uncommon. The highest incidence of PC is in the North and Northeast of the country. In addition to phimosis, the Human Papillomavirus (HPV) and Epstein-Baar Virus (EBV) infections are also related as risk factors for PC. The overexpression of p16INK4a is a surrogate sensitive marker of HPV infection in PC. OBJECTIVES To correlate p16INK4a overexpression and HPV infection status with EBV infection in a series of PC patients from the Amazon region. METHODS Tumor tissues from 47 PC cases were analyzed for the presence of HPV and EBV DNA by PCR. All PC patients were diagnosed between 2013 and 2018 at a public reference cancer center hospital in Manaus, Amazonas-Brazil. HPV was genotyped using E7 HPV16/HPV18 type-specific real-time PCR and the PapilloCheck® HPV-Screening assay. p16INK4a expression was evaluated by immunohistochemistry using the automated Ventana® BenchMark Ultra. RESULTS The mean age of patients at the time of diagnosis was 57.4 years ±SD 17.8 ranging from 20 to 90 years old. Most of the patients (64%) came from rural areas of the Amazonas State. Thirty patients had phimosis (64%). Among the patients with phimosis, 43% (13/30) underwent circumcision, three during childhood and 10 in adulthood. 60% of the patients were smokers or ex-smokers. HPV infection was observed in 45% (21/47) of cases. HPV16 was detected in 13 patients (61%). Other HPV types detected were HPV 6, 11, 42, 51, 53, 68 and 44/55. EBV infection was observed in 30% (14/47) of the patients with PC. Co-infection with HPV and EBV was observed in 28% (6/21) cases. p16INK4a was only investigated in 26 samples. The p16INK4a overexpression was observed exclusively in HPV 16 positive cases and four HPV negative cases. In the survival analysis, the follow-up time was 35.4 months/patient. The mortality rate during the follow up time was 38%. CONCLUSIONS p16INK4a positivity presented a high correlation to HPV 16 DNA detection, reinforcing its use as a surrogate marker for HPV-driven cancers. Infection with EBV was quite frequent and its role in epithelial penile oncogenesis needs to be demonstrated.
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Affiliation(s)
- Valquíria do Carmo Alves Martins
- Department of Education and Research, Fundação Centro de Controle de Oncologia do Estado do Amazonas, Manaus, Amazonas, Brazil
- Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Genomic Health Surveillance Network: Optimization of Assistance and Research in The State of Amazonas – REGESAM, Manaus, Amazonas, Brazil
| | - Isabela Werneck Cunha
- Department of Pathology, AC Camargo Cancer Center, São Paulo, Brazil
- Department of Pathology, Rede D’OR- São Luiz, São Paulo, Brazil
| | - Giuseppe Figliuolo
- Department of Education and Research, Fundação Centro de Controle de Oncologia do Estado do Amazonas, Manaus, Amazonas, Brazil
- Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | | | | | | | | | - Michele de Souza Bastos
- Department of Virology, Fundação de Medicina Tropical Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Daniel Barros de Castro
- Genomic Health Surveillance Network: Optimization of Assistance and Research in The State of Amazonas – REGESAM, Manaus, Amazonas, Brazil
- Technical Advisory, Fundação de Vigilância em Saúde do Amazonas, Manaus, Amazonas, Brazil
| | - Monique Freire Santana
- Department of Education and Research, Fundação Centro de Controle de Oncologia do Estado do Amazonas, Manaus, Amazonas, Brazil
- Department of Virology, Fundação de Medicina Tropical Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Genomic Health Surveillance Network: Optimization of Assistance and Research in The State of Amazonas – REGESAM, Manaus, Amazonas, Brazil
- Department of Virology, Fundação de Medicina Tropical Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Faculdade de Medicina, Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | - José Eduardo Levi
- Instituto de Medicina Tropical, Universidade de São Paulo, São Paulo, Brazil
| | - Kátia Luz Torres
- Department of Education and Research, Fundação Centro de Controle de Oncologia do Estado do Amazonas, Manaus, Amazonas, Brazil
- Universidade Federal do Amazonas, Manaus, Amazonas, Brazil
- Genomic Health Surveillance Network: Optimization of Assistance and Research in The State of Amazonas – REGESAM, Manaus, Amazonas, Brazil
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19
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Tarragô AM, da Silva Neto PV, Ramasawmy R, Pereira GL, Toro DM, de Amorim Xabregas L, Costa AG, Victória MB, da Silva Victória F, Malheiro A. Combination of genetic polymorphisms in TLR influence cytokine profile in HCV patients treated with DAAs in the State of Amazonas. Cytokine 2020; 130:155052. [PMID: 32179425 DOI: 10.1016/j.cyto.2020.155052] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 11/26/2019] [Accepted: 02/24/2020] [Indexed: 02/08/2023]
Abstract
Hepatitis C is a public health problem and affects approximately 3% of the world's population. HCV infections have a wide spectrum of clinical manifestations, and several single nucleotide polymorphisms (SNPs) in the genes of the toll-like receptors are cited to influence the clinical outcomes. A cross-sectional study was conducted in the Amazonas State, Brazil in which SNPs in TLR4 and TLR9 genes were genotyped by PCR-RFLP in 151 HCV chronic liver disease patients and 206 healthy donors. The circulating cytokines IL-6, TNF, IL-10, IL-2, IFN-γ, IL-4 and IL-17A were measured by cytometric bead array (CBA) which revealed that the combined genotypes of TLR9 -1237T/T and -1486C/T seem to influence the cytokine profile under lipopolysaccharide (LPS) stimulation of the Th17 profile, especially among patients with advanced chronic liver disease when treated with DAAs.
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Affiliation(s)
- Andréa Monteiro Tarragô
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brazil; Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Amazonas, Brazil; Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil.
| | - Pedro Vieira da Silva Neto
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brazil; Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, Amazonas, Brazil; Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Amazonas, Brazil
| | - Grenda Leite Pereira
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brazil; Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Amazonas, Brazil
| | - Diana Mota Toro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brazil; Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Amazonas, Brazil
| | - Lilyane de Amorim Xabregas
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brazil; Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil; Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil
| | - Allyson Guimaraes Costa
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brazil; Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil; Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, Amazonas, Brazil; Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Amazonas, Brazil; Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil
| | - Marilú Barbieri Victória
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil; Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, Amazonas, Brazil
| | - Flamir da Silva Victória
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil; Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, Amazonas, Brazil
| | - Adriana Malheiro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brazil; Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, Amazonas, Brazil; Programa de Pós-Graduação em Ciências Aplicadas à Hematologia, Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil.
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Cardoso T, Bezerra C, Medina LS, Ramasawmy R, Scheriefer A, Bacellar O, de Carvalho EM. Leishmania braziliensis isolated from disseminated leishmaniasis patients downmodulate neutrophil function. Parasite Immunol 2020; 41:e12620. [PMID: 30815888 PMCID: PMC6519172 DOI: 10.1111/pim.12620] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Revised: 02/20/2019] [Accepted: 02/21/2019] [Indexed: 02/02/2023]
Abstract
Aims The polymorphism observed in Leishmania braziliensis is associated with different clinical forms of leishmaniasis. Neutrophils (PMNs) participate in the pathogenesis of leishmania infection, and here, we evaluate neutrophil function after infection with isolates of L. braziliensis from cutaneous leishmaniasis (CL) or disseminated leishmaniasis (DL) patients. Methods and results Neutrophils from 30 healthy subjects (HS) were infected with isolates of L. (V.) braziliensis obtained from three CL and three DL patients. They were infected at the ratio of 3:1 parasites per neutrophil, and leishmania uptake was evaluated by microscopy. The neutrophil activation markers and oxidative burst by expression of dihidrorhodamine (DHR) were evaluated by flow cytometry and cytokine production by ELISA. The frequency of infected cells and the number of amastigotes were higher in neutrophils infected with CL isolates compared to DL isolates (P < 0.05). The DHR and CD66b expression after infection with DL isolate was lower than with CL isolates. There was no difference regarding chemokine production. Conclusion The L. (V.) braziliensis isolates of DL induced lower respiratory burst and neutrophils activation markers compared with CL isolates which may contribute to parasite survival and dissemination in DL patients.
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Affiliation(s)
- Thiago Cardoso
- Laboratório de Pesquisas Clínicas (LAPEC) do Instituto Gonçalo Moniz - Fiocruz, Bahia, Brazil.,Serviço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil
| | - Caroline Bezerra
- Serviço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil
| | - Lilian Silva Medina
- Serviço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil
| | - Rajendranath Ramasawmy
- Serviço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil
| | - Albert Scheriefer
- Serviço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil.,The National Institute of Science and Technology in Tropical Diseases (INCT-CNPq), Salvador, Brazil
| | - Olívia Bacellar
- Serviço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil.,The National Institute of Science and Technology in Tropical Diseases (INCT-CNPq), Salvador, Brazil
| | - Edgar M de Carvalho
- Laboratório de Pesquisas Clínicas (LAPEC) do Instituto Gonçalo Moniz - Fiocruz, Bahia, Brazil.,Serviço de Imunologia, Hospital Universitário Prof. Edgard Santos, Universidade Federal da Bahia, Salvador, Brazil.,The National Institute of Science and Technology in Tropical Diseases (INCT-CNPq), Salvador, Brazil
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21
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de Araújo Santos FJ, da Silva LS, Júnior JDES, Ramos de Mesquita TG, de Souza MLG, de Andrade Júnior MC, Talhari S, Ramasawmy R. Single nucleotide polymorphisms of the genes IL-2, IL-2RB, and JAK3 in patients with cutaneous leishmaniasis caused by Leishmania (V.) guyanensis in Manaus, Amazonas, Brazil. PLoS One 2019; 14:e0220572. [PMID: 31393896 PMCID: PMC6687158 DOI: 10.1371/journal.pone.0220572] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 07/18/2019] [Indexed: 11/18/2022] Open
Abstract
Leishmaniasis is a disease caused by intracellular protozoan parasites of the genus Leishmania. In endemic areas, only a portion of exposed subjects develops cutaneous leishmaniasis (CL), suggesting that the genetic inheritance of the host plays a vital role in both resistance and susceptibility to the disease. Interleukin-2 (IL-2) is a cytokine that plays a central role in the regulation of the immune response in infection through the axis IL-2/IL-2R (receptor) complex, triggering a series of intracellular events, among which the signaling of Janus kinase/signal transducers and activators of transcription (JAK-STAT). The present study aimed at verifying the possible relationship between single nucleotide polymorphism (s) (SNP s) in the genes IL-2, IL-2RB, and JAK3 in subjects with CL caused by Leishmania guyanensis in the city of Manaus, state of Amazonas, Brazil. 820 patients with CL and 850 healthy subjects (control group) coming from the same endemic areas as the patients were examined. The SNPs -2425G/A (rs4833248) and -330 T/G (rs2069762), located in the IL-2 gene promoter region, seem to influence the expression of the gene and the SNP +10558G/A (rs1003694) and +13295T/C (rs3212760) located in the 3rd intron of the IL-2RB gene and the 13th intron of the JAK3 gene, respectively, were studied by PCR-RFLP. Genotypes and alleles frequencies were obtained by direct counting. For the comparison between the two groups, the χ2 test with OR (odds ratio) and the 95% confidence interval (CI) were used. Similar genotypes and alleles frequencies for the different SNPs were observed in both patients with CL and healthy controls. Comparison of genotypic and allelic frequency between patients with CL and healthy subjects did not show any difference. These polymorphisms do not predict susceptibility to, or protection against the development of CL caused by L. guyanensis in the Amazonas.
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Affiliation(s)
- Felipe Jules de Araújo Santos
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Lener Santos da Silva
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | | | - Tirza Gabrielle Ramos de Mesquita
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | | | - Moacir Couto de Andrade Júnior
- Post-Graduation Department, Nilton Lins University, Manaus, Amazonas, Brazil
- Department of Food Technology, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Amazonas, Brazil
| | - Sinésio Talhari
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- Programa de Pós-graduação de Imunologia Básica, Universidade Federal do Amazonas, Manaus, Brazil
- Faculdade de Medicina, Nilton Lins University, Manaus, Amazonas, Brazil
- * E-mail:
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22
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da Silva GAV, de Mesquita TGR, de Souza Encarnação HV, do Espírito Santo Junior J, da Costa Sabino K, de Aguiar Neres I, de Almeida SA, de Souza MLG, Talhari S, Ramasawmy R. A polymorphism in the IL1B gene (rs16944 T/C) is associated with cutaneous leishmaniasis caused by Leishmania guyanensis and plasma cytokine interleukin receptor antagonist. Cytokine 2019; 123:154788. [PMID: 31357078 DOI: 10.1016/j.cyto.2019.154788] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 05/10/2019] [Accepted: 07/22/2019] [Indexed: 12/19/2022]
Abstract
Nod-like Receptor Protein3 (NLRP3) inflammasome in macrophages infected with Leishmania sp. enhances the secretion of IL-1β. Excess IL-1β production is linked to disease severity in patients with cutaneous leishmaniasis (CL) caused by L. mexicana. Blockade of the NLRP3 inflammasome in cell cultures from skin biopsies of patients with CL caused by L. braziliensis inhibited the release of IL-1β. We hypothesized that common single nucleotide polymorphisms in the IL1B and in its receptor antagonist IL1RN genes may be predictive of CL caused by L. guyanensis. The SNPs -511T/C (rs16944) and +3954C/T (rs1143634) of the IL1B and IL1RN VNTR (rs2234663) were assessed in 881 patients with CL and 837 healthy controls by PCR-RFLP and direct PCR respectively. Plasma cytokines levels were also assayed. The plasma levels of IL-1β were higher in patients compared to control subjects. In contrast, increased plasma levels of IL-1Ra were observed in controls. The rs16944 C/C genotype was more common among the patients (OR = 1.5 [95%CI 1.1-2.0]; P = 0.004) and the C allele suggests susceptibility to CL (OR = 1.2 [95%CI 1.1-1.4]; P = 0.003). The rs16944 C/C genotype shows a tendency to correlate with lower levels of the IL-1Ra cytokine. Low levels of IL-1Ra cytokine and rs16944 C/C genotype seem to confer susceptibility to L. guyanensis-infection in the Amazonas.
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Affiliation(s)
| | | | | | | | - Karolina da Costa Sabino
- Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Isaac de Aguiar Neres
- Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | | | - Mara Lúcia Gomes de Souza
- Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Sinésio Talhari
- Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil; Faculdade de Medicina, Universidade de Nilton Lins, Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Imunologia Básica e Aplicada-PPGIBA, Universidade Federal do Amazonas, Manaus, Brazil; Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil; Faculdade de Medicina, Universidade de Nilton Lins, Manaus, Amazonas, Brazil.
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23
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Mombo LE, Ramasawmy R, Zertal-Zidani S, Charron D, Tamouza R. Ethnic differences in CD1E, but not CD1A, gene polymorphisms between Sub-Saharan Africans, West Asians and Europeans. Hum Immunol 2018; 80:204-207. [PMID: 30576703 DOI: 10.1016/j.humimm.2018.12.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 11/18/2018] [Accepted: 12/17/2018] [Indexed: 01/01/2023]
Abstract
The five closely linked CD1A-E genes encode the human CD1 family of proteins. Few studies of the allele frequencies of these genes in African populations have been published so far. This study aimed to genotype CD1A and CD1E variants and to compare their frequencies in Sub-Saharan Africans from Gabon and Ivory Coast, and Non-Africans from Syria and France. A restriction analysis of DNA fragments generated by PCR was performed to detect CD1A and CD1E alleles in 105 subjects from Gabon, 169 subjects from Ivory Coast, 107 subjects from Syria and 181 subjects from France. The frequencies of the CD1E*02 allele were high among Sub-Saharan Africans (87%) and low in West Asians (44%) and Europeans (36%), whereas the contrary was obtained for the CD1E*01 allele (7%, 55% and 64% respectively). Frequencies of CD1A alleles were similar between all groups, the CD1A*02 allele was most prevalent (91%). The high frequency of the CD1E*02 allele in Sub-Saharan Africans suggest that future work should investigate the relationship between CD1 polymorphism and infectious diseases.
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Affiliation(s)
- Landry Erik Mombo
- Centre International de Recherches Médicales de Franceville (CIRMF), BP 769, Franceville, Gabon; INSERM U458, Hôpital Robert Debré, 48 Bd Sérurier, 75019 Paris, France.
| | - Rajendranath Ramasawmy
- Laboratoire d'Immunologie et d'Histocompatibilité AP-HP, IUH and INSERM U662, Paris, France
| | | | - Dominique Charron
- Laboratoire d'Immunologie et d'Histocompatibilité AP-HP, IUH and INSERM U662, Paris, France
| | - Ryad Tamouza
- Laboratoire d'Immunologie et d'Histocompatibilité AP-HP, IUH and INSERM U662, Paris, France
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Gadelha EPN, Ramasawmy R, da Costa Oliveira B, Morais Rocha N, de Oliveira Guerra JA, Allan Villa Rouco da Silva G, Gabrielle Ramos de Mesquita T, Chrusciak Talhari Cortez C, Chrusciak Talhari A. An open label randomized clinical trial comparing the safety and effectiveness of one, two or three weekly pentamidine isethionate doses (seven milligrams per kilogram) in the treatment of cutaneous leishmaniasis in the Amazon Region. PLoS Negl Trop Dis 2018; 12:e0006850. [PMID: 30379814 PMCID: PMC6231690 DOI: 10.1371/journal.pntd.0006850] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Revised: 11/12/2018] [Accepted: 09/14/2018] [Indexed: 11/30/2022] Open
Abstract
Background American Cutaneous Leishmaniasis (ACL), a vector borne disease, is caused by various species of Leishmania and in the Amazonas, Leishmania guyanensis is predominant. The recommended drugs for treatment of cutaneous leishmaniasis (CL) in Brazil are pentavalent antimonials, pentamidine isethionate (PI) and amphotericin B. Pentamidine was initially used as metanolsulfonate or mesylate (Lomidine) at a dose of 4 mg/kg/daily, containing 2.3mg of base. This drug was withdrawn from the market in the eighties, and currently is available as PI. The PI dose required to achieve an equivalent dose of pentamidine base is 7 mg/kg, rather than the 4 mg/kg that is currently recommended in Brazil. Objectives The aim of this study was to evaluate the efficacy and safety of PI in a single dose, two or three doses of 7 mg/kg body weight, intramuscularly, with an interval of seven days between each dose. Materials and methods This study was conducted as a controlled, randomized, open–label clinical trial for a total number of 159 patients with CL. Individuals aged 16–64 years with one to six lesions of confirmed CL based on amastigotes visualization in direct examination of Giemsa stained of dermal scraping from the border of the lesion with no previous treatment for CL and no abnormal values for liver enzymes were eligible to participate in the study. Patients with history of diabetes, cardiac, renal, and hepatic disease as well as pregnant women were excluded. Cure was defined as complete healing in the diameters of the ulcers and lesions skin six months after the end of the treatment. Results From November 2013 to December 2015, 159 patients were screened and allocated in three groups for treatment with PI: i) 53 patients were treated with a single dose intramuscularly injection of 7 mg/kg body weight; ii) 53 received two doses of 7 mg/kg within an interval of seven days; and iii) 53 were treated with three doses of 7mg/kg with an interval of seven days between each dose. In 120 patients, L. guyanensis was identified. A cure rate of 45%, 81.1% and 96.2% were observed in the first, second and third group, respectively. The cure in the three PI dose group was higher compared to the single-dose (p<0.0001) and two-dose groups (p = 0.03). No serious adverse events occurred. Conclusion The present study shows that PI is a safe drug and its efficacy varied with the number of doses. The administration of PI in patients with ACL, predominantly caused by L. guyanensis, was mostly efficient in three or two doses of 7 mg/kg. Trial registration ClinicalTrials.gov NCT02919605 Ninety percent of all cases of CL are concentrated in five countries, including Brazil. Brazil is among the most endemic countries in the Americas. According to the Brazilian Ministry of Health, 30,000 new cases are diagnosed every year and the prevalent species are L. braziliensis and L. guyanensis. In the region of Manaus (Western Amazon), L. guyanensis is responsible for 95% of the cases of CL. The recommended drugs for treatment of CL in Brazil are pentavalent antimonials, PI and amphotericin B (AmB). Pentavalent antimonial is the first-line treatment in Brazil, and AmB is recommended as second-line. The recommended dose for the treatment of CL is 10–20 mg/kg/day of meglumine antimoniate for a period of 20 days. Its efficacy varies from 26.3% to 81.6%. For treatment with AmB, the patient must come to the hospital and be monitored for renal function for several hours. We report a phase II pilot study comprising 159 patients with CL due to L. guyanensis treated with PI. The patients were randomly divided in three groups: 53 received a single intramuscular injection of 7mg/kg PI salt; 53 received a regimen of two intramuscular injections of 7 mg/kg within a seven-day interval; and 53 were treated with three intramuscular injections of 7 mg/kg with a seven-day interval between each dose. All patients live in the region of Manaus and were monitored at Tropical Medicine Foundation of Amazonas. Patients underwent a dermatological and laboratorial examination at the start of the study and at weeks 1 and 4. PI was well tolerated and no severe adverse effects were detected. After a 6-month follow-up, we observed 81.% and 96.2% effectiveness for the cure rates in the groups receiving two and three intramuscular injections of 7 mg/kg PI in ACL patients at one-week intervals between doses, respectively. Only 45.3% of the patients treated with a single dose of the medication were considered to be cured. The use of PI in the aforementioned doses is the best option to treat ACL in this region given the long distance, the difficulty in accessing health centers, and the L. (V.) guyanensis predominance in the Brazilian Amazon. We recommend either two or three weekly doses of PI at 7 mg/kg for the treatment of ACL patients in the region.
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Affiliation(s)
- Ellen Priscilla Nunes Gadelha
- Tropical Medicine Post-graduation Program. Heitor Vieira Dourado Amazon Tropical Medicine Foundation and Amazonas State University, Manaus, AM, Brazil
- * E-mail:
| | - Rajendranath Ramasawmy
- Department of Molecular Biology, Division of Immunogenetics, at the Tropical Medicine Foundation—Dr Heitor Vieira Dourado and Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | - Bruna da Costa Oliveira
- Department of Leishmaniasis, Research Division at the Tropical Medicine Foundation—Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Nágila Morais Rocha
- Department of Leishmaniasis, Research Division at the Tropical Medicine Foundation—Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Jorge Augusto de Oliveira Guerra
- Department of Leishmaniasis, Research Division at the Tropical Medicine Foundation—Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - George Allan Villa Rouco da Silva
- Department of Molecular Biology, Division of Immunogenetics, at the Tropical Medicine Foundation—Dr Heitor Vieira Dourado and Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | - Tirza Gabrielle Ramos de Mesquita
- Department of Molecular Biology, Division of Immunogenetics, at the Tropical Medicine Foundation—Dr Heitor Vieira Dourado and Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | | | - Anette Chrusciak Talhari
- Department of Dermatology. Heitor Vieira Dourado Amazon Tropical Medicine Foundation, Manaus, AM, Brazil
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Costa AG, Ramasawmy R, Val FFA, Ibiapina HNS, Oliveira AC, Tarragô AM, Garcia NP, Heckmann MIO, Monteiro WM, Malheiro A, Lacerda MVG. Polymorphisms in TLRs influence circulating cytokines production in Plasmodium vivax malaria. Cytokine 2018; 110:374-380. [DOI: 10.1016/j.cyto.2018.04.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 03/22/2018] [Accepted: 04/07/2018] [Indexed: 02/08/2023]
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26
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Silva SR, Almeida ACG, da Silva GAV, Ramasawmy R, Lopes SCP, Siqueira AM, Costa GL, Sousa TN, Vieira JLF, Lacerda MVG, Monteiro WM, de Melo GC. Chloroquine resistance is associated to multi-copy pvcrt-o gene in Plasmodium vivax malaria in the Brazilian Amazon. Malar J 2018; 17:267. [PMID: 30012145 PMCID: PMC6048775 DOI: 10.1186/s12936-018-2411-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 07/09/2018] [Indexed: 01/08/2023] Open
Abstract
Background The resistance of Plasmodium vivax to chloroquine has become an obstacle to control strategies based on the use of anti-malarials. The current study investigated the association between P. vivax CQ-resistance in vivo with copy number variation and mutations in the promoter region in pvcrt-o and pvmdr1 genes. Methods The study included patients with P. vivax that received supervised treatment with chloroquine and primaquine. Recurrences were actively recorded during this period. Results Among the 60 patients with P. vivax, 25 were CQ-resistant and 35 CQ-susceptible. A frequency of 7.1% of multi-copy pvcrt-o was observed in CQ-susceptible samples and 7.7% in CQ-resistant at D0 (P > 0.05) and 33.3% in CQ-resistant at DR (P < 0.05). For pvmdr1, 10.7% of the CQ-susceptible samples presented multiple copies compared to 11.1% in CQ-resistant at D0 and 0.0% in CQ-resistant at DR (P > 0.05). A deletion of 19 bp was found in 11/23 (47.6%) of the patients with CQ-susceptible P. vivax and 3/10 (23.1%) of the samples with in CQRPv at D0. At day DR, 55.5% of the samples with CQRPv had the 19 bp deletion. For the pvmdr-1 gene, was no variation in the analysed gene compared to the P. vivax reference Sal-1. Conclusions This was the first study with 42-day clinical follow-up to evaluate the variation of the number of copies and polymorphisms in the promoter region of the pvcrt-o and pvmdr1 genes in relation to treatment outcomes. Significantly higher frequency of multi-copy pvcrt-o was found in CQRPv samples at DR compared to CQ-susceptible, indicating parasite selection of this genotype after CQ treatment and its association with CQ-resistance in vivo. Electronic supplementary material The online version of this article (10.1186/s12936-018-2411-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Siuhelem Rocha Silva
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, 69040-000, Brazil.,Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, 69040-000, Brazil
| | - Anne Cristine Gomes Almeida
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, 69040-000, Brazil.,Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, 69040-000, Brazil
| | | | - Rajendranath Ramasawmy
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, 69040-000, Brazil.,Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, 69040-000, Brazil
| | - Stefanie Costa Pinto Lopes
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, 69040-000, Brazil.,Instituto Leônidas & Maria Deane (ILMD), Fiocruz, Manaus, Amazonas, 69057-070, Brazil
| | - André Machado Siqueira
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, 69040-000, Brazil.,Instituto Nacional de Infectologia, Evandro Chagas, Fiocruz, Rio de Janeiro, 21040-360, Brazil
| | - Gabriel Luíz Costa
- Centro de Pesquisas René Rachou, Fiocruz, Belo Horizonte, Minas Gerais, 30190-002, Brazil
| | - Taís Nóbrega Sousa
- Centro de Pesquisas René Rachou, Fiocruz, Belo Horizonte, Minas Gerais, 30190-002, Brazil
| | | | - Marcus Vinícius Guimarães Lacerda
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, 69040-000, Brazil.,Instituto Leônidas & Maria Deane (ILMD), Fiocruz, Manaus, Amazonas, 69057-070, Brazil
| | - Wuelton Marcelo Monteiro
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, 69040-000, Brazil.,Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, 69040-000, Brazil
| | - Gisely Cardoso de Melo
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, 69040-000, Brazil. .,Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, 69040-000, Brazil.
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Barletta-Naveca RH, Naveca FG, de Almeida VA, Porto JIR, da Silva GAV, Ogusku MM, Sadahiro A, Ramasawmy R, Boechat AL. Toll-Like Receptor-1 Single-Nucleotide Polymorphism 1805T/G Is Associated With Predisposition to Multibacillary Tuberculosis. Front Immunol 2018; 9:1455. [PMID: 29988507 PMCID: PMC6026633 DOI: 10.3389/fimmu.2018.01455] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 06/12/2018] [Indexed: 12/13/2022] Open
Abstract
Tuberculosis (TB), caused by mycobacterial species of the Mycobacterium tuberculosis complex, is a serious global health issue. Brazil is among the 22 countries with the highest number of TB cases, and the state of Amazonas has the highest incidence of TB cases in the country. Toll-like receptors (TLRs) are important pattern recognition receptors of the innate immunity and play a key role in orchestrating an effective immune response. We investigated whether the single-nucleotide polymorphisms (SNPs) 1805T/G TLR1, 2258G/A TLR2, 896A/G and 1196C/T of TLR4, 745T/C TLR6, and −1237A/G and −1486A/G of TLR9 are associated with the predisposition to TB and/or bacillary load. The SNPs genotyping was performed by nucleotide sequencing in 263 TB patients and 232 healthy controls residing in the state of Amazonas. Alleles and genotypes frequencies were similar between patients and healthy individuals for most of the investigated SNPs. Stratification of the TB patients according to their bacillary load showed that the genotype 1805TT TLR1 (rs5743618) was prevalent among paucibacillary patients [odds ratio (OR) = 0.38; 95% confidence interval (CI) = 0.19–0.76; p = 0.009] while the genotype 1805TG was common among multibacillary patients (OR = 3.72; CI = 1.65–8.4; p = 0.004). Comparison of demographic characteristics of patients to controls showed that TB is strongly associated with smoking (OR = 6.55; 95% CI = 3.2–13.6; p < 0.0001); alcohol use disorder (OR = 7.14; 95% CI = 3.7–13.9; p < 0.0001); and male gender (OR = 3.66; 95% CI = 2.52–5.3; p < 0.0001). Multivariate logistic regression demonstrated that alcoholism (OR = 2.93; 95% CI = 1.05–8.16; p = 0.03) and the 1805G allele (OR = 2.75; 95% CI = 1.33–5.7; p = 0.006) are predictive variables for multibacillary TB. Altogether, we suggest that the TLR1 1805G allele may be a relevant immunogenetic factor for the epidemiology of TB together with environmental, sociodemographic, and behavioral factors.
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Affiliation(s)
- Raphaela Honorato Barletta-Naveca
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil.,Programa de Pós-graduação em Genética, Conservação e Biologia Evolutiva (PPG-GCBEv), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Felipe Gomes Naveca
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, Fiocruz Amazônia, Manaus, Brazil.,Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Deane, Fiocruz Amazônia, Manaus, Brazil.,Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, Rio de Janeiro, Brazil
| | - Vanessa Alves de Almeida
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil.,Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil
| | - Jorge Ivan Rebelo Porto
- Programa de Pós-graduação em Genética, Conservação e Biologia Evolutiva (PPG-GCBEv), Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil.,Laboratório de Genética Animal, Instituto Nacional de Pesquisas da Amazônia (INPA/CPBA), Manaus, Brazil
| | | | - Mauricio Morishi Ogusku
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil
| | - Aya Sadahiro
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Brazil.,Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil.,Laboratório de Imunologia Molecular, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil.,Faculdade de Medicina, Universidade Nilton Lins, Manaus, Brazil.,Fundação de Medicina Tropical Doutor Heitor Vieira Dourado (FMT-HVD), Manaus, Brazil
| | - Antonio Luiz Boechat
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Brazil.,Laboratório de Imunoquímica, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Brazil
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Naveca FG, Pontes GS, Chang AYH, Silva GAVD, Nascimento VAD, Monteiro DCDS, Silva MSD, Abdalla LF, Santos JHA, Almeida TAPD, Mejía MDCC, Mesquita TGRD, Encarnação HVDS, Gomes MDS, Amaral LR, Campi-Azevedo AC, Coelho-Dos-Reis JG, Antonelli LRDV, Teixeira-Carvalho A, Martins-Filho OA, Ramasawmy R. Analysis of the immunological biomarker profile during acute Zika virus infection reveals the overexpression of CXCL10, a chemokine linked to neuronal damage. Mem Inst Oswaldo Cruz 2018; 113:e170542. [PMID: 29768624 PMCID: PMC5961926 DOI: 10.1590/0074-02760170542] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Accepted: 02/14/2018] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Infection with Zika virus (ZIKV) manifests in a broad spectrum of disease ranging from mild illness to severe neurological complications and little is known about Zika immunopathogenesis. OBJECTIVES To define the immunologic biomarkers that correlate with acute ZIKV infection. METHODS We characterized the levels of circulating cytokines, chemokines, and growth factors in 54 infected patients of both genders at five different time points after symptom onset using microbeads multiplex immunoassay; comparison to 100 age-matched controls was performed for statistical analysis and data mining. FINDINGS ZIKV-infected patients present a striking systemic inflammatory response with high levels of pro-inflammatory mediators. Despite the strong inflammatory pattern, IL-1Ra and IL-4 are also induced during the acute infection. Interestingly, the inflammatory cytokines IL-1β, IL-13, IL-17, TNF-α, and IFN-γ; chemokines CXCL8, CCL2, CCL5; and the growth factor G-CSF, displayed a bimodal distribution accompanying viremia. While this is the first manuscript to document bimodal distributions of viremia in ZIKV infection, this has been documented in other viral infections, with a primary viremia peak during mild systemic disease and a secondary peak associated with distribution of the virus to organs and tissues. MAIN CONCLUSIONS Biomarker network analysis demonstrated distinct dynamics in concurrence with the bimodal viremia profiles at different time points during ZIKV infection. Such a robust cytokine and chemokine response has been associated with blood-brain barrier permeability and neuroinvasiveness in other flaviviral infections. High-dimensional data analysis further identified CXCL10, a chemokine involved in foetal neuron apoptosis and Guillain-Barré syndrome, as the most promising biomarker of acute ZIKV infection for potential clinical application.
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Affiliation(s)
- Felipe Gomes Naveca
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas e Maria Deane, Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Manaus, AM, Brasil.,Universidade Federal do Amazonas, Programa de Pós-Graduação em Imunologia Básica e Aplicada, Manaus, AM, Brasil
| | | | | | - George Allan Villarouco da Silva
- Universidade Federal do Amazonas, Programa de Pós-Graduação em Imunologia Básica e Aplicada, Manaus, AM, Brasil.,Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, AM, Brasil
| | - Valdinete Alves do Nascimento
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas e Maria Deane, Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Manaus, AM, Brasil
| | | | - Marineide Souza da Silva
- Universidade Federal do Amazonas, Programa de Pós-Graduação em Imunologia Básica e Aplicada, Manaus, AM, Brasil
| | - Lígia Fernandes Abdalla
- Universidade Federal do Amazonas, Programa de Pós-Graduação em Imunologia Básica e Aplicada, Manaus, AM, Brasil.,Universidade do Estado do Amazonas, Manaus, AM, Brasil
| | | | - Tatiana Amaral Pires de Almeida
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas e Maria Deane, Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Manaus, AM, Brasil
| | - Matilde Del Carmen Contreras Mejía
- Fundação Oswaldo Cruz-Fiocruz, Instituto Leônidas e Maria Deane, Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Manaus, AM, Brasil
| | | | | | | | | | | | | | | | | | | | - Rajendranath Ramasawmy
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, AM, Brasil.,Universidade Nilton Lins, Manaus, AM, Brasil
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Francesconi VA, Francesconi F, Ramasawmy R, Romero GAS, Alecrim MDGC. Failure of fluconazole in treating cutaneous leishmaniasis caused by Leishmania guyanensis in the Brazilian Amazon: An open, nonrandomized phase 2 trial. PLoS Negl Trop Dis 2018; 12:e0006225. [PMID: 29481560 PMCID: PMC5854414 DOI: 10.1371/journal.pntd.0006225] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2017] [Revised: 03/15/2018] [Accepted: 01/09/2018] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND The treatment of Leishmaniasis caused by Leishmania (Viannia) guyanensis is based on a weak strength of evidence from very few clinical trials and some case series reports. Current treatment guidelines recommend pentamidine isethionate or meglumine antimoniate (Glucantime) as the first-line choices. Both are parenteral drugs with a low therapeutic indexes leading to a high risk of undesired effects. Imidazole derivatives interfere with the production of leishmanial ergosterol, an essential component of their membrane structure. One drug that has been studied in different clinical presentations of Leishmania is fluconazole, a hydrophilic bis-triazole, which is easily absorbed through the oral route with a low toxicity profile and is considered safe for children. This drug is readily available in poor countries with a reasonable cost making it a potential option for treating leishmaniasis. METHODS AND FINDINGS An adaptive nonrandomized clinical trial with sequential groups with dose escalation of oral fluconazole was designed to treat adult men with localized cutaneous leishmaniasis (LCL) in Manaus, Brazil. Eligible participants were patients with LCL with confirmed Leishmania guyanensis infection. RESULTS Twenty adult male patients were treated with 450 mg of fluconazole daily for 30 days. One patient (5%) was cured within 30 days of treatment. Of the 19 failures (95%), 13 developed a worsening of ulcers and six evolved lymphatic spreading of the disease. Planned dose escalation was suspended after the disappointing failure rate during the first stage of the trial. CONCLUSION/SIGNIFICANCE Oral fluconazole, at the dose of 450mg per day, was not efficacious against LCL caused by Leishmania guyanensis in adult men. TRIAL REGISTRATION Brazilian Clinical Trial Registration (ReBec)-RBR-8w292w; UTN number-1158-2421.
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Affiliation(s)
- Valeska Albuquerque Francesconi
- Department of Dermatology, Academic and Research Division at the Tropical Medicine Foundation - Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Fabio Francesconi
- Department of Dermatology, Academic and Research Division at the Tropical Medicine Foundation - Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Department of Molecular Biology, Division of Immunogenetics, at the Tropical Medicine Foundation - Dr Heitor Vieira Dourado and Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | | | - Maria das Graças Costa Alecrim
- Department of Infectology, Division of Malaria and Neglected Tropical Diseases at the Tropical Medicine Foundation - Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
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30
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Brasil LW, Rodrigues-Soares F, Santoro AB, Almeida ACG, Kühn A, Ramasawmy R, Lacerda MVG, Monteiro WM, Suarez-Kurtz G. CYP2D6 activity and the risk of recurrence of Plasmodium vivax malaria in the Brazilian Amazon: a prospective cohort study. Malar J 2018; 17:57. [PMID: 29390987 PMCID: PMC5795836 DOI: 10.1186/s12936-017-2139-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 12/09/2017] [Indexed: 11/11/2022] Open
Abstract
Background CYP2D6 pathway mediates the activation of primaquine into active metabolite(s) in hepatocytes. CYP2D6 is highly polymorphic, encoding CYP2D6 isoforms with normal, reduced, null or increased activity. It is hypothesized that Plasmodium vivax malaria patients with defective CYP2D6 function would be at increased risk for primaquine failure to prevent recurrence. The aim of this study was to investigate the association of CYP2D6 polymorphisms and inferred CYP2D6 phenotypes with malaria recurrence in patients from the Western Brazilian Amazon, following chloroquine/primaquine combined therapy. Methods The prospective cohort consisted of P. vivax malaria patients who were followed for 6 months after completion of the chloroquine/primaquine therapy. Recurrence was defined as one or more malaria episodes, 28–180 days after the initial episode. Genotyping for nine CYP2D6 SNPs and copy number variation was performed using TaqMan assays in a Fast 7500 Real-Time System. CYP2D6 star alleles (haplotypes), diplotypes and CYP2D6 phenotypes were inferred, and the activity score system was used to define the functionality of the CYP2D6 diplotypes. CYP2D6 activity scores (AS) were dichotomized at ≤ 1 (gPM, gIM and gNM-S phenotypes) and ≥ 1.5 (gNM-F and gUM phenotypes). Results Genotyping was successfully performed in 190 patients (44 with recurrence and 146 without recurrences). Recurrence incidence was higher in individuals presenting reduced activity CYP2D6 phenotypes (adjusted relative risk = 1.89, 95% CI 1.01–3.70; p = 0.049). Attributable risk and population attributable fraction were 11.5 and 9.9%, respectively. The time elapsed from the first P. vivax malaria episode until the recurrence did not differ between patients with AS of ≤ 1 versus ≥ 1.5 (p = 0.917). Conclusions The results suggest that CYP2D6 polymorphisms are associated with increased risk of recurrence of vivax malaria, following chloroquine–primaquine combined therapy. This association is interpreted as the result of reduced conversion of primaquine into its active metabolites in patients with reduced CYP2D6 enzymatic activity.
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Affiliation(s)
- Larissa W Brasil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil.,Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brazil
| | - Fernanda Rodrigues-Soares
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brazil
| | - Ana B Santoro
- Coordenação de Pesquisa, Instituto Nacional de Câncer, Rio de Janeiro, RJ, 20231-050, Brazil
| | - Anne C G Almeida
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil.,Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brazil
| | - Andrea Kühn
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil
| | - Rajendranath Ramasawmy
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil.,Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brazil.,Faculdade de Medicina, Universidade Nilton Lins, Manaus, AM, Brazil
| | - Marcus V G Lacerda
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil.,Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brazil.,Instituto Leônidas & Maria Deane, Fiocruz, Manaus, AM, Brazil
| | - Wuelton M Monteiro
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil.,Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brazil.,Faculdade de Medicina, Universidade Nilton Lins, Manaus, AM, Brazil
| | - Guilherme Suarez-Kurtz
- Coordenação de Pesquisa, Instituto Nacional de Câncer, Rio de Janeiro, RJ, 20231-050, Brazil.
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Abdalla LF, Santos JHA, Barreto RTJ, Souza EME, D'Assunção FF, Borges MA, Nascimento VA, da Silva GAV, de Souza VC, Ramasawmy R, Campi-Azevedo AC, Coelho-Dos-Reis JG, Antonelli LRDV, Teixeira-Carvalho A, Martins-Filho OA, Naveca FG. Atrial fibrillation in a patient with Zika virus infection. Virol J 2018. [PMID: 29370812 DOI: 10.1186/s12985-018-0938-2[publishedonlinefirst:20180125]] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
BACKGROUND Zika virus is an emerging arbovirus of the family Flaviviridae and genus Flavivirus that until 2007 was restricted to a few cases of mild illness in Africa and Asia. CASE PRESENTATION We report a case of atrial fibrillation disclosed during an acute Zika virus infection in a 49-year-old man. Different biological samples were analyzed for the molecular diagnosis of Zika by real-time PCR, however only the saliva specimen was positive. The patient's wife tested positive in the serum sample, although she was an asymptomatic carrier. Moreover, a complete overview of patient's biomarkers, including cytokines, chemokines, and growth-factors levels, was analyzed and compared to gender and age matching non-infected controls, as well as other Zika infected patients, considering the 95%CI of the mean values. Elevated levels of CXCL8, CCL11, CCL2, CXCL10, IL-1β, IL-6, TNF-α, IFN-γ, IL-17, IL-1Ra, IL-4, IL-9, FGF-basic, PDGF, G-CSF, and GM-CSF were observed in the Atrial fibrillation patient, in contrast to uninfected controls. Furthermore, increased levels of CCL5, IL-1β, TNF-α, IFN-γ, IL-9, G-CSF, and GM-CSF were observed only in the atrial fibrillation patient, when compared to other Zika patients. CONCLUSIONS To our knowledge, this is the first description of this type of cardiac disorder in Zika patients which may be considered another atypical manifestation during Zika virus infection.
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Affiliation(s)
- Ligia Fernandes Abdalla
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - João Hugo Abdalla Santos
- Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Hospital Adventista de Manaus, Manaus, Amazonas, Brazil
| | | | | | | | | | - Valdinete Alves Nascimento
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Diane - Fiocruz Amazônia, Manaus, Amazonas, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - George Allan Villarouco da Silva
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Fundação de Medicina Tropical - Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Victor Costa de Souza
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Diane - Fiocruz Amazônia, Manaus, Amazonas, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Fundação de Medicina Tropical - Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil.,Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | | | | | | | | | | | - Felipe Gomes Naveca
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil. .,Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Diane - Fiocruz Amazônia, Manaus, Amazonas, Brazil. .,Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil. .,Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Diane - Fiocruz Amazônia, Manaus, Amazonas, Brazil.
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Abdalla LF, Santos JHA, Barreto RTJ, Souza EME, D'Assunção FF, Borges MA, Nascimento VA, da Silva GAV, de Souza VC, Ramasawmy R, Campi-Azevedo AC, Coelho-Dos-Reis JG, Antonelli LRDV, Teixeira-Carvalho A, Martins-Filho OA, Naveca FG. Atrial fibrillation in a patient with Zika virus infection. Virol J 2018; 15:23. [PMID: 29370812 PMCID: PMC5785868 DOI: 10.1186/s12985-018-0938-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Accepted: 01/19/2018] [Indexed: 12/19/2022] Open
Abstract
Background Zika virus is an emerging arbovirus of the family Flaviviridae and genus Flavivirus that until 2007 was restricted to a few cases of mild illness in Africa and Asia. Case presentation We report a case of atrial fibrillation disclosed during an acute Zika virus infection in a 49-year-old man. Different biological samples were analyzed for the molecular diagnosis of Zika by real-time PCR, however only the saliva specimen was positive. The patient’s wife tested positive in the serum sample, although she was an asymptomatic carrier. Moreover, a complete overview of patient’s biomarkers, including cytokines, chemokines, and growth-factors levels, was analyzed and compared to gender and age matching non-infected controls, as well as other Zika infected patients, considering the 95%CI of the mean values. Elevated levels of CXCL8, CCL11, CCL2, CXCL10, IL-1β, IL-6, TNF-α, IFN-γ, IL-17, IL-1Ra, IL-4, IL-9, FGF-basic, PDGF, G-CSF, and GM-CSF were observed in the Atrial fibrillation patient, in contrast to uninfected controls. Furthermore, increased levels of CCL5, IL-1β, TNF-α, IFN-γ, IL-9, G-CSF, and GM-CSF were observed only in the atrial fibrillation patient, when compared to other Zika patients. Conclusions To our knowledge, this is the first description of this type of cardiac disorder in Zika patients which may be considered another atypical manifestation during Zika virus infection.
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Affiliation(s)
- Ligia Fernandes Abdalla
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - João Hugo Abdalla Santos
- Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Hospital Adventista de Manaus, Manaus, Amazonas, Brazil
| | | | | | | | | | - Valdinete Alves Nascimento
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Diane - Fiocruz Amazônia, Manaus, Amazonas, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - George Allan Villarouco da Silva
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Fundação de Medicina Tropical - Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Victor Costa de Souza
- Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Diane - Fiocruz Amazônia, Manaus, Amazonas, Brazil.,Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil.,Fundação de Medicina Tropical - Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil.,Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | | | | | | | | | | | - Felipe Gomes Naveca
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas, Manaus, Amazonas, Brazil. .,Laboratório de Ecologia de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Diane - Fiocruz Amazônia, Manaus, Amazonas, Brazil. .,Programa de Pós-Graduação em Biologia Celular e Molecular, Instituto Oswaldo Cruz, Fiocruz, Rio de Janeiro, Brazil. .,Programa de Pós-Graduação em Biologia da Interação Patógeno-Hospedeiro, Instituto Leônidas e Maria Diane - Fiocruz Amazônia, Manaus, Amazonas, Brazil.
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Costa AG, Ramasawmy R, Ibiapina HNS, Sampaio VS, Xábregas LA, Brasil LW, Tarragô AM, Almeida ACG, Kuehn A, Vitor-Silva S, Melo GC, Siqueira AM, Monteiro WM, Lacerda MVG, Malheiro A. Association of TLR variants with susceptibility to Plasmodium vivax malaria and parasitemia in the Amazon region of Brazil. PLoS One 2017; 12:e0183840. [PMID: 28850598 PMCID: PMC5574562 DOI: 10.1371/journal.pone.0183840] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 08/11/2017] [Indexed: 01/29/2023] Open
Abstract
Background Plasmodium vivax malaria (Pv-malaria) is still considered a neglected disease despite an alarming number of individuals being infected annually. Malaria pathogenesis occurs with the onset of the vector-parasite-host interaction through the binding of pathogen-associated molecular patterns (PAMPs) and receptors of innate immunity, such as toll-like receptors (TLRs). The triggering of the signaling cascade produces an elevated inflammatory response. Genetic polymorphisms in TLRs are involved in susceptibility or resistance to infection, and the identification of genes involved with Pv-malaria response is important to elucidate the pathogenesis of the disease and may contribute to the formulation of control and elimination tools. Methodology/Principal findings A retrospective case-control study was conducted in an intense transmission area of Pv-malaria in the state of Amazonas, Brazil. Genetic polymorphisms (SNPs) in different TLRs, TIRAP, and CD14 were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis in 325 patients infected with P. vivax and 274 healthy individuals without malaria history in the prior 12 months from the same endemic area. Parasite load was determined by qPCR. Simple and multiple logistic/linear regressions were performed to investigate association between the polymorphisms and the occurrence of Pv-malaria and parasitemia. The C/T (TLR5 R392StopCodon) and T/T (TLR9 -1486C/T) genotypes appear to be risk factors for infection by P. vivax (TLR5: C/C vs. C/T [OR: 2.116, 95% CI: 1.054–4.452, p = 0.031]; TLR9: C/C vs. T/T [OR: 1.919, 95% CI: 1.159–3.177, p = 0.010]; respectively). Fever (COEF = 7599.46, 95% CI = 3063.80–12135.12, p = 0.001) and the C/C genotype of TLR9 -1237C/T (COEF = 17006.63, 95% CI = 3472.83–30540.44, p = 0.014) were independently associated with increased parasitemia in patients with Pv-malaria. Conclusions Variants of TLRs may predispose individuals to infection by P. vivax. The TLR5 R392StopCodon and TLR9 -1486C/T variants are associated with susceptibility to Pv-malaria. Furthermore, the TLR9 variant -1237C/C correlates with high parasitemia.
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Affiliation(s)
- Allyson Guimarães Costa
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
- Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, AM, Brazil
- * E-mail: (AGC)
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
- Universidade Nilton Lins (UNINILTONLINS), Manaus, AM, Brasil
| | - Hiochelson Najibe Santos Ibiapina
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
| | - Vanderson Souza Sampaio
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
| | - Lilyane Amorim Xábregas
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
| | - Larissa Wanderley Brasil
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
| | - Andréa Monteiro Tarragô
- Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, AM, Brazil
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
| | - Anne Cristine Gomes Almeida
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
| | - Andrea Kuehn
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
- Barcelona Centre for International Health Research (CRESIB), Barcelona Global Health Institute (ISGLOBAL), Barcelona, Spain
| | - Sheila Vitor-Silva
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
| | - Gisely Cardoso Melo
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
| | - André Machado Siqueira
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, RJ, Brazil
| | - Wuelton Marcelo Monteiro
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
| | - Marcus Vinicius Guimarães Lacerda
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), Manaus, AM, Brazil
- Instituto de Pesquisas Leônidas & Maria Deane, FIOCRUZ-Amazônia, Manaus, AM, Brazil
| | - Adriana Malheiro
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
- Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas (HEMOAM), Manaus, AM, Brazil
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil
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Costa AG, Ramasawmy R, Malheiro A, Lacerda MVG. Implications of SNPs on toll-like receptor genes in malaria: what do we know? Rev Soc Bras Med Trop 2017; 50:151-152. [PMID: 28562748 DOI: 10.1590/0037-8682-0132-2017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 04/06/2017] [Indexed: 12/16/2022] Open
Affiliation(s)
- Allyson Guimarães Costa
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brasil.,Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brasil.,Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, AM, Brasil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brasil.,Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brasil.,Universidade Nilton Lins, Manaus, AM, Brasil.,Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas , Manaus, AM, Brasil
| | - Adriana Malheiro
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brasil.,Laboratório de Genômica, Fundação Hospitalar de Hematologia e Hemoterapia do Amazonas, Manaus, AM, Brasil.,Programa de Pós-Graduação em Imunologia Básica e Aplicada, Universidade Federal do Amazonas , Manaus, AM, Brasil
| | - Marcus Vinícius Guimarães Lacerda
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brasil.,Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brasil.,Instituto Leônidas e Maria Deane, Fundação Oswaldo Cruz, Manaus, AM, Brasil
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Brasil LW, Barbosa LRA, de Araujo FJ, da Costa AG, da Silva LDO, Pinheiro SK, de Almeida ACG, Kuhn A, Vitor-Silva S, de Melo GC, Monteiro WM, de Lacerda MVG, Ramasawmy R. TOLLIP gene variant is associated with Plasmodium vivax malaria in the Brazilian Amazon. Malar J 2017; 16:116. [PMID: 28288644 PMCID: PMC5347824 DOI: 10.1186/s12936-017-1754-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 02/26/2017] [Indexed: 11/18/2022] Open
Abstract
Background Toll-interacting protein is a negative regulator in the TLR signaling cascade, particularly by impeding the TLR2 and, TLR4 pathway. Recently, TOLLIP was shown to regulate human TLR signaling pathways. Two common TOLLIP polymorphisms (rs5743899 and rs3750920) were reported to be influencing IL-6, TNF and IL-10 expression. In this study, TOLLIP variants were investigated to their relation to Plasmodium vivax malaria in the Brazilian Amazon. Methods This cohort study was performed in the municipalities of Careiro and, Manaus, in Western Brazilian Amazon. A total of 319 patients with P. vivax malaria and, 263 healthy controls with no previous history of malaria were included in the study. Genomic DNA was extracted from blood collected on filter paper, using the QIAamp® DNA Mini Kit, according to the manufacturer’s suggested protocol. The rs5743899 and rs3750920 polymorphisms of the TOLLIP gene were typed by PCR–RFLP. Results Homozygous individuals for the rs3750920 T allele gene had twice the risk of developing malaria when compared to individuals homozygous for the C allele (OR 2.0 [95% CI 1.23–3.07]; p = 0.004). In the dominant model, carriers the C allele indicates protection to malaria, carriers of the C allele were compared to individuals with the T allele, and the difference is highly significant (OR 0.52 [95% CI 0.37–0.76]; p = 0.0006). The linkage disequilibrium between the two polymorphisms was weak (r2 = 0.037; D′ = 0.27). Conclusions These findings suggest that genes involved in the TLRs-pathway may be involved in malaria susceptibility. The association of the TOLLIP rs3750920 T allele with susceptibility to malaria further provides evidence that genetic variations in immune response genes may predispose individuals to malaria.
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Affiliation(s)
- Larissa W Brasil
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil.,Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
| | - Laila R A Barbosa
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil
| | - Felipe J de Araujo
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil.,Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
| | - Allyson G da Costa
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil.,Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
| | - Luan D O da Silva
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil
| | - Suzana K Pinheiro
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil.,Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
| | - Anne C G de Almeida
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil.,Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
| | - Andrea Kuhn
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil
| | - Sheila Vitor-Silva
- Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
| | - Gisely C de Melo
- Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
| | - Wuelton M Monteiro
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil.,Escola Superior de Ciências da Saúde, Universidade do Estado do Amazonas (UEA), Manaus, AM, Brazil
| | - Marcus V G de Lacerda
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil.,Instituto de Pesquisas Leônidas & Maria Deane, FIOCRUZ, Manaus, AM, Brazil
| | - Rajendranath Ramasawmy
- Diretoria de Ensino e Pesquisa, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Av. Pedro Teixeira, 25-Dom Pedro, Manaus, Amazonas, CEP:69040-000, Brazil. .,Faculdade de Medicina, Universidade Nilton Lins, Manaus, AM, Brazil. .,Programa de Pós-Graduação em Imunologia Básica e Aplicada Universidade Federal do Amazonas (UFAM), Manaus, AM, Brazil.
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Mombo LE, Ntoumi F, Bisseye C, Ramasawmy R, Millet P, Tamouza R. Homozygosity for the CD1E*02 allele is associated with a resistance to Plasmodium falciparum malaria infection in Gabonese school children. ASIAN PAC J TROP MED 2017; 10:204-207. [DOI: 10.1016/j.apjtm.2017.01.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 12/17/2016] [Accepted: 12/26/2016] [Indexed: 10/20/2022] Open
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Souza de Lima D, Morishi Ogusku M, Porto dos Santos M, de Melo Silva CM, Alves de Almeida V, Assumpção Antunes I, Boechat AL, Ramasawmy R, Sadahiro A. Alleles of HLA-DRB1*04 Associated with Pulmonary Tuberculosis in Amazon Brazilian Population. PLoS One 2016; 11:e0147543. [PMID: 26901036 PMCID: PMC4764689 DOI: 10.1371/journal.pone.0147543] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Accepted: 01/04/2016] [Indexed: 12/16/2022] Open
Abstract
Immunogenetic host factors are associated with susceptibility or protection to tuberculosis (TB). Strong associations of HLA class II genes with TB are reported. We analyzed the HLA-DRB1*04 alleles to identify subtypes associated with pulmonary TB and their interaction with risk factors such as alcohol, smoking, and gender in 316 pulmonary TB patients and 306 healthy individuals from the Brazilian Amazon. The HLA-DRB1*04 was prevalent in patients with pulmonary TB (p<0.0001; OR = 2.94; 95% CI = 2.12 to 4.08). Direct nucleotide sequencing of DRB1 exon 2 identified nine subtypes of HLA-DRB1*04. The subtype HLA-DRB1*04:11:01 (p = 0.0019; OR = 2.23; 95% CI = 1.34 to 3.70) was associated with susceptibility to pulmonary TB while DRB1*04:07:01 (p<0.0001; OR = 0.02; 95% CI = 0.001 to 0.33) to protection. Notably, the interaction between alcohol and HLA-DRB1*04:11:01 increased the risk for developing pulmonary TB (p = 0.0001; OR = 51.3; 95% CI = 6.81 to 386). Multibacillary pulmonary TB, the clinical presentation of disease transmission, was strongly associated with interaction to alcohol (p = 0.0026; OR = 11.1; 95% CI = 3.99 to 30.9), HLA-DRB1*04:11:01 (p = 0.0442; OR = 2.01; 95% CI = 1.03 to 3.93) and DRB1*04:92 (p = 0.0112; OR = 8.62; 95% CI = 1.63 to 45.5). These results show that HLA-DRB1*04 are associated with pulmonary TB. Interestingly, three subtypes, DRB1*04:07:01, DRB1*04:11:01 and DRB1*04:92 of the HLA-DRB1*04 could be potential immunogenetic markers that may help to explain mechanisms involved in disease development.
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Affiliation(s)
- Dhêmerson Souza de Lima
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brasil
- * E-mail:
| | - Mauricio Morishi Ogusku
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Amazonas, Brasil
| | - Maisa Porto dos Santos
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, Amazonas, Brasil
| | - Cláudia Maria de Melo Silva
- Programa de Pós-Graduação em Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas (FCF), Manaus, Amazonas, Brasil
| | - Vanessa Alves de Almeida
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brasil
| | | | - Antonio Luiz Boechat
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brasil
| | - Rajendranath Ramasawmy
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brasil
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado (FMT/HVD), Manaus, Amazonas, Brasil
- Universidade Nilton Lins, Manaus, Amazonas, Brasil
| | - Aya Sadahiro
- Programa de Pós-Graduação em Imunologia Básica e Aplicada, Instituto de Ciências Biológicas, Universidade Federal do Amazonas (UFAM), Manaus, Amazonas, Brasil
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Garrido MDS, Bührer-Sékula S, Souza AB, de Oliveira GP, Antunes IA, Mendes JM, Saraceni V, Martinez-Espinosa FE, Ramasawmy R. Multidrug-resistant tuberculosis in the Amazonas State, Brazil, 2000-2011. Int J Tuberc Lung Dis 2016; 19:531-6. [PMID: 25868020 DOI: 10.5588/ijtld.14.0291] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTINGS Amazonas is facing increasing challenges in tuberculosis (TB) control, with nearly 3000 cases per year, and multidrug-resistant TB (MDR-TB) may jeopardise the TB control programme. OBJECTIVE To assess the number of MDR-TB cases in the Amazonas and to improve estimates of the burden of TB. DESIGNS The Brazilian National Mandatory Disease Reporting System (SINAN) and the Brazilian Epidemiological Surveillance System of Multidrug Resistance (TBMR) were searched for MDR-TB cases in the State of Amazonas from 2000 to 2011. RESULTS Eighty-one MDR-TB cases were notified. The rates of primary MDR-TB, initial MDR-TB during the first treatment regimen and acquired MDR-TB were respectively 3.8%, 13.7% and 82.7%; 26.9% of previously treated patients had ⩾ 4 treatment cycles. The MDR-TB cases reported 263 contacts, only 35.0% of whom were examined. The cure and death rates among the 81 patients with MDR-TB were respectively 45.7% and 25.9%. CONCLUSIONS The number of MDR-TB cases seems incompatible with the high TB prevalence in the Amazonas. Most patients were unaware of contact with TB patients. TB is endemic in the Amazonas. This highlights the need for improving resistance investigation among all TB cases.
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Affiliation(s)
- M da S Garrido
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil; Fundação de Vigilância em Saúde do Amazonas, Manaus, Amazonas, Brazil; Secretaria Municipal de Saúde de Manaus, Manaus, Amazonas, Brazil
| | - S Bührer-Sékula
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil; Instituto de Patologia e Saúde Pública, Universidade Federal de Goiás, Goiânia, Goiás, Brazil
| | - A B Souza
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil
| | - G P de Oliveira
- Programa Nacional de Tuberculose, Ministério da Saúde, Brasília, Brazil
| | - I A Antunes
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil, Centro de Referência para Tuberculose Cardoso Fontes, Manaus, Amazonas, Brazil
| | - J M Mendes
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil; Centro de Referência para Tuberculose Cardoso Fontes, Manaus, Amazonas, Brazil
| | - V Saraceni
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil; Secretaria Municipal de Saúde do Rio de Janeiro, Rio de Janeiro, Rio de Janeiro, Brazil
| | - F E Martinez-Espinosa
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil; Instituto Leônidas e Maria Deane, Fundação Oswaldo Cruz Amazônia, Manaus, Amazonas, Brazil
| | - R Ramasawmy
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Universidade do Estado do Amazonas, Manaus, Amazonas, Brazil; Universidade Nilton Lins, Manaus, Amazonas, Brazil; Programa de Pós-graduação em Imunologia Básica e Aplicada, Universidade Federal de Amazonas, Manaus, Amazonas, Brazil
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Mourão MPG, Bastos MDS, Figueiredo RMPD, Gimaque JBDL, Alves VDCR, Saraiva MDGG, Figueiredo MLG, Ramasawmy R, Nogueira ML, Figueiredo LTM. Arboviral diseases in the Western Brazilian Amazon: a perspective and analysis from a tertiary health & research center in Manaus, State of Amazonas. Rev Soc Bras Med Trop 2015; 48 Suppl 1:20-6. [PMID: 26061367 DOI: 10.1590/0037-8682-0133-2013] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 05/22/2014] [Indexed: 11/22/2022] Open
Abstract
The Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD), located in Manaus, the capital of the State of Amazonas (Western Brazilian Amazon), is a pioneering institution in this region regarding the syndromic surveillance of acute febrile illness, including arboviral infections. Based on the data from patients at the FMT-HVD, we have detected recurrent outbreaks in Manaus by the four dengue serotypes in the past 15 years, with increasing severity of the disease. This endemicity has culminated in the simultaneous circulation of all four serotypes in 2011, the first time this has been reported in Brazil. Between 1996 and 2009, 42 cases of yellow fever (YF) were registered in the State of Amazonas, and 71.4% (30/42) were fatal. Since 2010, no cases have been reported. Because the introduction of the yellow fever virus into a large city such as Manaus, which is widely infested by Aedes mosquitoes, may pose a real risk of a yellow fever outbreak, efforts to maintain an appropriate immunization policy for the populace are critical. Manaus has also suffered silent outbreaks of Mayaro and Oropouche fevers lately, most of which were misdiagnosed as dengue fever. The tropical conditions of the State of Amazonas favor the existence of other arboviruses capable of producing human disease. Under this real threat, represented by at least 4 arboviruses producing human infections in Manaus and in other neighboring countries, it is important to develop an efficient public health surveillance strategy, including laboratories that are able to make proper diagnoses of arboviruses.
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Andrade SDD, Andrade MGFS, Santos PJ, Galvão MDL, Barros MMD, Ramasawmy R, Safe IP, Monteiro WM, Sabidó M, Alecrim MDGC. Acute disseminated encephalomyelitis following inactivated influenza vaccination in the Brazilian Amazon: a case report. Rev Soc Bras Med Trop 2015; 48:498-500. [DOI: 10.1590/0037-8682-0314-2014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 05/29/2015] [Indexed: 11/22/2022] Open
Affiliation(s)
- Solange Dourado de Andrade
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Brazil; Centro de Referência para Imunobiológicos Especiais, Brazil
| | | | | | | | | | - Rajendranath Ramasawmy
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Brazil; Universidade do Estado do Amazonas, Brazil
| | | | - Wuelton Marcelo Monteiro
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Brazil; Universidade do Estado do Amazonas, Brazil
| | - Meritxell Sabidó
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Brazil; Universitat de Girona, Spain
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de Araujo FJ, da Silva LDO, Mesquita TG, Pinheiro SK, Vital WDS, Chrusciak-Talhari A, Guerra JADO, Talhari S, Ramasawmy R. Polymorphisms in the TOLLIP Gene Influence Susceptibility to Cutaneous Leishmaniasis Caused by Leishmania guyanensis in the Amazonas State of Brazil. PLoS Negl Trop Dis 2015; 9:e0003875. [PMID: 26107286 PMCID: PMC4479602 DOI: 10.1371/journal.pntd.0003875] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 06/04/2015] [Indexed: 01/01/2023] Open
Abstract
INTRODUCTION The clinical outcome to Leishmania-infection is determined by the individual adaptive immune T helper cell responses and their interactions with parasitized host cells. An early development of a proinflammatory immune response (Th1 response) is necessary for Leishmania-infection resolution. The Toll-interacting protein (TOLLIP) regulates human Toll-like receptors signaling pathways by down regulating the proinflammatory cytokines interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-α) and inducing the ant-inflammatory cytokine interleukin-10 (IL-10). Polymorphisms in the TOLLIP gene are associated with infectious diseases. MATERIAL AND METHODS The polymorphisms rs5743899 and rs3750920 in the TOLLIP gene were genotyped by polymerase chain reaction and restriction fragment length polymorphism (RFLP) analysis in 631 patients with cutaneous leishmaniasis (CL) caused by L. guyanensis and 530 individuals with no history of leishmaniasis. RESULTS The G and T alleles of the rs5743899 and rs3750920 were more common in patients with CL than in healthy individuals (P = 2.6 x10(-8) ; odds ratio [OR], 1.7 [ 95% confidence interval (CI) 1.4-2.0] and P = 1.9 x10(-8) ; OR, 1.6 [95% CI 1.4-1.9] respectively). The r2 and D' linkage disequilibrium between the two polymorphisms are 0.05 and 0.473 with a confidence bounds of 0.37 to 0.57 respectively. CONCLUSION The two polymorphisms are independently associated with an increased risk of developing CL.
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Affiliation(s)
| | | | | | | | | | | | | | - Sinésio Talhari
- Faculdade de Medicina, Universidade de Nilton Lins, Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Faculdade de Medicina, Universidade de Nilton Lins, Manaus, Amazonas, Brazil
- Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
- * E-mail:
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de Araujo FJ, Mesquita TG, da Silva LDO, de Almeida SA, de S Vital W, Chrusciak-Talhari A, de O Guerra JA, Talhari S, Ramasawmy R. Functional variations in MBL2 gene are associated with cutaneous leishmaniasis in the Amazonas state of Brazil. Genes Immun 2015; 16:284-8. [PMID: 25764115 DOI: 10.1038/gene.2015.6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 12/19/2014] [Accepted: 01/05/2015] [Indexed: 01/01/2023]
Abstract
Functional variations in the mannose-binding lectin (MBL2) gene causing low levels of serum MBL are associated with susceptibility to numerous infectious diseases. We investigated whether there is genetic association of MBL2 variant alleles with cutaneous leishmaniasis (CL) caused by Leishmania guyanensis. We used PCR-restriction fragment length polymorphism to genotype six MBL2 variants, three in the promoter region and three in the exon 1. An association was noted between the single nucleotide polymorphism -221X/Y of the MBL2 gene and CL (P=2.9 × 10(-6); odds ratio (OR)=1.9 (1.4-2.5) consistent with the hypothesis that the -221X allele confers high risk to development of CL among L. guyanensis-infected individuals. Furthermore, L. guyanensis-infected individuals bearing the codon 57 allele C had a higher risk of developing CL (P=5 × 10(-5); OR=1.9 (1.4-2.6)). The low MBL expressor haplotype LXPB was also associated to CL (P=6 × 10(-4)). This study raises the possibility that functional polymorphisms in MBL2 gene play a role in clinical outcome of Leishmania infection.
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Affiliation(s)
- F J de Araujo
- Faculdade de Medicina, Universidade Nilton Lins, Av. Prof Nilton Lins, Manaus, Brazil
| | - T G Mesquita
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Brazil
| | - L D O da Silva
- Faculdade de Medicina, Universidade Nilton Lins, Av. Prof Nilton Lins, Manaus, Brazil
| | - S A de Almeida
- Faculdade de Medicina, Universidade Nilton Lins, Av. Prof Nilton Lins, Manaus, Brazil
| | - W de S Vital
- Faculdade de Medicina, Universidade Nilton Lins, Av. Prof Nilton Lins, Manaus, Brazil
| | | | - J A de O Guerra
- Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Brazil
| | - S Talhari
- Faculdade de Medicina, Universidade Nilton Lins, Av. Prof Nilton Lins, Manaus, Brazil
| | - R Ramasawmy
- 1] Faculdade de Medicina, Universidade Nilton Lins, Av. Prof Nilton Lins, Manaus, Brazil [2] Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Brazil
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Garrido MDS, Bührer-Sékula S, Souza ABD, Ramasawmy R, Quincó PDL, Monte RL, Santos LO, Perez-Porcuna TM, Martinez-Espínosa FE, Saraceni V, Cordeiro-Santos M. Temporal distribution of tuberculosis in the State of Amazonas, Brazil. Rev Soc Bras Med Trop 2015; 48 Suppl 1:63-9. [PMID: 26061372 DOI: 10.1590/0037-8682-0055-2014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 08/05/2014] [Indexed: 11/22/2022] Open
Abstract
Tuberculosis (TB) is one of the infectious diseases that contributes most to the morbidity and mortality of millions of people worldwide. Brazil is one of 22 countries that accounts for 80% of the tuberculosis global burden. The highest incidence rates in Brazil occur in the States of Amazonas and Rio de Janeiro. The aim of this study was to describe the temporal distribution of TB in the State of Amazonas. Between 2001 and 2011, 28,198 cases of tuberculosis were reported in Amazonas, distributed among 62 municipalities, with the capital Manaus reporting the highest (68.7%) concentration of cases. Tuberculosis was more prevalent among males (59.3%) aged 15 to 34 years old (45.5%), whose race/color was predominantly pardo (64.7%) and who had pulmonary TB (84.3%). During this period, 81 cases of multidrug-resistant TB were registered, of which the highest concentration was reported from 2008 onward (p = 0.002). The municipalities with the largest numbers of indigenous individuals affected were São Gabriel da Cachoeira (93%), Itamarati (78.1%), and Santa Isabel do Rio Negro (70.1%). The future outlook for this region includes strengthening the TB control at the primary care level, by expanding diagnostic capabilities, access to treatment, research projects developed in collaboration with the Dr. Heitor Vieira Dourado Tropical Medicine Foundation .;Fundação de Medicina Tropical Dr. Heitor Vieira Dourado (FMT-HVD).; and financing institutions, such as the project for the expansion of the Clinical Research Center and the creation of a hospital ward for individuals with transmissible respiratory diseases, including TB.
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Affiliation(s)
- Marlucia da Silva Garrido
- Departamento de Ensino e Pós-Graduação, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil
| | - Samira Bührer-Sékula
- Departamento de Ensino e Pós-Graduação, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil
| | - Alexandra Brito de Souza
- Departamento de Ensino e Pós-Graduação, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil
| | - Rajendranath Ramasawmy
- Departamento de Ensino e Pós-Graduação, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil
| | - Patrícia de Lima Quincó
- Departamento de Ensino e Pós-Graduação, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil
| | - Rossicleia Lins Monte
- Departamento de Ensino e Pós-Graduação, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil
| | - Lucilaide Oliveira Santos
- Departamento de Ensino e Pós-Graduação, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil
| | - Tomás Maria Perez-Porcuna
- Programa de Pós-Graduação em Medicina Tropical, Universidade do Estado do Amazonas, Manaus, AM, Brazil
| | | | - Valéria Saraceni
- Departamento de Ensino e Pós-Graduação, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil
| | - Marcelo Cordeiro-Santos
- Departamento de Ensino e Pós-Graduação, Fundação de Medicina Tropical Dr. Heitor Vieira Dourado, Manaus, AM, Brazil
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Ramasawmy R, Campbell-Washburn AE, Wells JA, Johnson SP, Pedley RB, Walker-Samuel S, Lythgoe MF. Hepatic arterial spin labelling MRI: an initial evaluation in mice. NMR Biomed 2015; 28:272-80. [PMID: 25522098 PMCID: PMC4670473 DOI: 10.1002/nbm.3251] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 10/09/2014] [Accepted: 11/26/2014] [Indexed: 05/20/2023]
Abstract
The development of strategies to combat hepatic disease and augment tissue regeneration has created a need for methods to assess regional liver function. Liver perfusion imaging has the potential to fulfil this need, across a range of hepatic diseases, alongside the assessment of therapeutic response. In this study, the feasibility of hepatic arterial spin labelling (HASL) was assessed for the first time in mice at 9.4 T, its variability and repeatability were evaluated, and it was applied to a model of colorectal liver metastasis. Data were acquired using flow-sensitive alternating inversion recovery-arterial spin labelling (FAIR-ASL) with a Look-Locker readout, and analysed using retrospective respiratory gating and a T1 -based quantification. This study shows that preclinical HASL is feasible and exhibits good repeatability and reproducibility. Mean estimated liver perfusion was 2.2 ± 0.8 mL/g/min (mean ± standard error, n = 10), which agrees well with previous measurements using invasive approaches. Estimates of the variation gave a within-session coefficient of variation (CVWS) of 7%, a between-session coefficient of variation (CVBS) of 9% and a between-animal coefficient of variation (CVA) of 15%. The within-session Bland-Altman repeatability coefficient (RCWS) was 18% and the between-session repeatability coefficient (RCBS) was 29%. Finally, the HASL method was applied to a mouse model of liver metastasis, in which significantly lower mean perfusion (1.1 ± 0.5 mL/g/min, n = 6) was measured within the tumours, as seen by fluorescence histology. These data indicate that precise and accurate liver perfusion estimates can be achieved using ASL techniques, and provide a platform for future studies investigating hepatic perfusion in mouse models of disease.
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Affiliation(s)
- R Ramasawmy
- UCL Centre for Advanced Biomedical ImagingPaul O'Gorman Building, London, UK
- UCL Cancer InstitutePaul O'Gorman Building, London, UK
| | | | - J A Wells
- UCL Centre for Advanced Biomedical ImagingPaul O'Gorman Building, London, UK
| | - S P Johnson
- UCL Centre for Advanced Biomedical ImagingPaul O'Gorman Building, London, UK
- UCL Cancer InstitutePaul O'Gorman Building, London, UK
| | - R B Pedley
- UCL Cancer InstitutePaul O'Gorman Building, London, UK
| | - S Walker-Samuel
- UCL Centre for Advanced Biomedical ImagingPaul O'Gorman Building, London, UK
| | - M F Lythgoe
- UCL Centre for Advanced Biomedical ImagingPaul O'Gorman Building, London, UK
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Silva GAV, Ramasawmy R, Boechat AL, Morais AC, Carvalho BKS, Sousa KBA, Souza VC, Cunha MGS, Barletta-Naveca RH, Santos MP, Naveca FG. Association of TNF -1031 C/C as a potential protection marker for leprosy development in Amazonas state patients, Brazil. Hum Immunol 2015; 76:137-41. [PMID: 25636570 DOI: 10.1016/j.humimm.2015.01.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 12/26/2014] [Accepted: 01/14/2015] [Indexed: 12/30/2022]
Abstract
Polymorphisms present in the TNF promoter region has shown to influence the gene transcription. Leprosy displays different clinical manifestations according to the immune responses of the individual infected with Mycobacterium leprae. In this study, we evaluated the single nucleotide polymorphisms (SNPs) -238 G/A (rs361525), -308 G/A (rs1800629), -857 C/T (rs1799724), -863 A/C (rs1800630) and -1031 T/C (rs1799964) in the promoter region of the TNF to see whether these SNPs influence host-susceptibility to leprosy and the different clinical manifestation. Nucleotide sequencing was performed with DNA samples from 108 leprosy patients and 253 control subjects. An association between -1031 C/C genotype and protection from leprosy was observed when leprosy patients were compared to controls (OR 0.11; 95% CI=0.01-0.82; p=0.012). The -857 C/T genotype may be associated with susceptibility to leprosy (OR=1.81; 95% CI=1.09-3.00; p=0.028). Similar genotype and allele frequencies for the SNPs -308 G/A and -238 G/A were observed between leprosy patients and control subjects. Altogether, TNF polymorphisms in the promoter region may be predictive of leprosy outcome.
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Affiliation(s)
- G A V Silva
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil.
| | - R Ramasawmy
- Fundação de Medicina Tropical Doutor Heitor Vieira Dourado, Manaus, Amazonas, Brazil; Faculdade de Medicina, Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | - A L Boechat
- Laboratório de Imunologia, Departamento de Parasitologia, Instituto de Ciências Biológicas, Universidade Federal do Amazonas, Manaus, Brazil
| | - A C Morais
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil
| | - B K S Carvalho
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil
| | - K B A Sousa
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil
| | - V C Souza
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil
| | - M G S Cunha
- Fundação de Dermatologia e Venereologia Alfredo da Matta, Manaus, Amazonas, Brazil
| | - R H Barletta-Naveca
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - M P Santos
- Laboratório de Micobacteriologia, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil
| | - F G Naveca
- Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Manaus, Amazonas, Brazil
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da Silva Garrido M, Ramasawmy R, Perez-Porcuna TM, Zaranza E, Chrusciak Talhari A, Martinez-Espinosa FE, Bührer-Sékula S. Primary drug resistance among pulmonary treatment-naïve tuberculosis patients in Amazonas State, Brazil. Int J Tuberc Lung Dis 2015; 18:559-63. [PMID: 24903793 DOI: 10.5588/ijtld.13.0191] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Multidrug-resistant tuberculosis (MDR-TB) is the main indicator of previous treatment in tuberculosis (TB) patients. MDR-TB among treatment-naïve patients indicates infection with drug-resistant Mycobacterium tuberculosis strains, and such cases are considered primary drug-resistant cases. OBJECTIVE To estimate the prevalence of drug resistance in pulmonary TB (PTB) treatment-naïve patients and to identify the socio-demographic and clinical characteristics of the resistant population. METHODS A total of 205 treatment-naïve PTB patients from Manaus, Amazonas State, Brazil, were enrolled. Drug susceptibility testing (DST) was performed on all positive mycobacterial cultures using the 1% proportion method. RESULTS Positive M. tuberculosis cultures were obtained from only 175 patients for DST. The prevalence of primary MDR-TB was 1.7% (3/175); 14.3% (25/175) of the cultures presented resistance to at least one of the drugs. Resistance to streptomycin, isoniazid, rifampicin and ethambutol was respectively 8.6%, 6.9%, 3.4% and 2.3%. An association between TB patients with resistance to more than one drug and known previous household contact with a TB patient was observed (P= 0.008, OR 6.7, 95%CI 1.2-67.3). CONCLUSIONS Although the prevalence of primary MDR-TB currently is relatively low, it may become a major public health problem if tailored treatment is not provided, as resistance to more than one drug is significantly associated with household contact.
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Affiliation(s)
- M da Silva Garrido
- Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - R Ramasawmy
- Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - T M Perez-Porcuna
- Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - E Zaranza
- Laboratório Central de Saúde Pública do Amazonas, Manaus, Amazonas, Brazil
| | - A Chrusciak Talhari
- Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - F E Martinez-Espinosa
- Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - S Bührer-Sékula
- Universidade do Estado do Amazonas/Fundação de Medicina Tropical Dr Heitor Vieira Dourado, Manaus, Amazonas, Brazil
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Braga WSM, de Oliveira CMC, de Araújo JR, Castilho MDC, Rocha JM, Gimaque JBDL, Silva MLCR, Vasconcelos HL, Ramasawmy R, Paraná R. Chronic HDV/HBV co-infection: predictors of disease stage---a case series of HDV-3 patients. J Hepatol 2014; 61:1205-11. [PMID: 24905491 DOI: 10.1016/j.jhep.2014.05.041] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 05/26/2014] [Accepted: 05/27/2014] [Indexed: 12/14/2022]
Abstract
BACKGROUND & AIMS Chronic HDV/HBV co-infection is perhaps the most intriguing amongst all viral hepatitis. Only few studies focus deeply on this topic, particularly with patients infected with HDV-3. This study aimed to identify predictors of advanced disease, examining a cross-sectional data of 64 patients. METHODS Histological grading was used to characterize the disease stages and viral loads were tested as predictors of necroinflammatory activity and fibrosis. RESULTS We identified three HDV/HBV co-infection patterns: patients with predominant HDV replication (56.3%), patients with similar viral loads of both viruses (40.6%), and patients with predominant HBV replication (3.1%). Mean HDV-RNA showed a positive trend regarding inflammatory activity and grade of fibrosis. HDV viral load correlated positively with serum levels of liver enzymes and inversely with platelets count. HBV viral load showed no correlation with any of the above parameters. Advanced fibrosis was associated with age, splenomegaly, and HDV viral load of more than 2 log10. Multiple logistic regression confirmed the independent effect of HDV viral predominance. Advanced necroinflammatory activity was independently associated with HDV viral load and splenomegaly. CONCLUSIONS HDV may possibly play an important and direct role in the establishment of necroinflammatory activity and fibrosis. Data show an indigenous HDV genotype, HDV-3, similar to those described in the Amazon region.
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Affiliation(s)
| | - Cintia Mara Costa de Oliveira
- Virology Department, Tropical Medicine Foundation Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil; Multidisciplinar Center, Federal University of Amazonas, Manaus, Amazonas, Brazil
| | - José Ribamar de Araújo
- Anatomopatology Department, Tropical Medicine Foundation Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Marcia da Costa Castilho
- Virology Department, Tropical Medicine Foundation Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Joelma Martins Rocha
- Virology Department, Tropical Medicine Foundation Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | | | | | - Heline Lira Vasconcelos
- Virology Department, Tropical Medicine Foundation Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Virology Department, Tropical Medicine Foundation Dr. Heitor Vieira Dourado, Manaus, Amazonas, Brazil; Nilton Lins University, Manaus, Amazonas, Brazil
| | - Raymundo Paraná
- Gastroenterology Unit, Federal University of Bahia, Salvador, Bahia, Brazil
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Abstract
Lobomycosis is a subcutaneous mycosis of chronic evolution caused by the Lacazia loboi fungus. Its distribution is almost exclusive in the Americas, and it has a particularly high prevalence in the Amazon basin. Cases of lobomycosis have been reported only in dolphins and humans. Its prevalence is higher among men who are active in the forest, such as rubber tappers, bushmen, miners, and Indian men. It is recognized that the traumatic implantation of the fungus on the skin is the route by which humans acquire this infection. The lesions affect mainly exposed areas such as the auricles and upper and lower limbs and are typically presented as keloid-like lesions. Currently, surgical removal is the therapeutic procedure of choice in initial cases. Despite the existing data and studies to date, the active immune mechanisms in this infection and its involvement in the control or development of lacaziosis have not been fully clarified. In recent years, little progress has been made in the appraisal of the epidemiologic aspects of the disease. So far, we have neither a population-based study nor any evaluation directed to the forest workers.
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Affiliation(s)
| | | | | | - Rajendranath Ramasawmy
- Department of Immunogenetics, Tropical Medicine Foundation Heitor Vieira Dourado, Manaus, Amazonas, Brazil
| | - Fábio Francesconi
- Department of Dermatology, Tropical Medicine Foundation Heitor Vieira Dourado, Manaus, Amazonas, Brazil
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Martins VDCA, Bastos MDS, Ramasawmy R, de Figueiredo RP, Gimaque JBL, Braga WSM, Nogueira ML, Nozawa S, Naveca FG, Figueiredo LTM, Mourão MPG. Clinical and virological descriptive study in the 2011 outbreak of dengue in the Amazonas, Brazil. PLoS One 2014; 9:e100535. [PMID: 24978469 PMCID: PMC4076277 DOI: 10.1371/journal.pone.0100535] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Accepted: 05/23/2014] [Indexed: 11/24/2022] Open
Abstract
Background Dengue is a vector-borne disease in the tropical and subtropical region of the world and is transmitted by the mosquito Aedes aegypti. In the state of Amazonas, Brazil during the 2011 outbreak of dengue all the four Dengue virus (DENV) serotypes circulating simultaneously were observed. The aim of the study was to describe the clinical epidemiology of dengue in Manaus, the capital city of the state of the Amazonas, where all the four DENV serotypes were co-circulating simultaneously. Methodology Patients with acute febrile illness during the 2011 outbreak of dengue, enrolled at the Fundação de Medicina Tropical Dr. Heitor Viera Dourado (FMT-HVD), a referral centre for tropical and infectious diseases in Manaus, were invited to participate in a clinical and virological descriptive study. Sera from 677 patients were analyzed by RT-nested-PCRs for flaviviruses (DENV 1–4, Saint Louis encephalitis virus-SLEV, Bussuquara virus-BSQV and Ilheus virus-ILHV), alphavirus (Mayaro virus-MAYV) and orthobunyavirus (Oropouche virus-OROV). Principal Findings Only dengue viruses were detected in 260 patients (38.4%). Thirteen patients were co-infected with more than one DENV serotype and six (46.1%) of them had a more severe clinical presentation of the disease. Nucleotide sequencing showed that DENV-1 belonged to genotype V, DENV-2 to the Asian/American genotype, DENV-3 to genotype III and DENV-4 to genotype II. Conclusions Co-infection with more than one DENV serotype was observed. This finding should be warning signs to health authorities in situations of the large dispersal of serotypes that are occurring in the world.
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Affiliation(s)
| | - Michele de Souza Bastos
- Fundação de Medicina Tropical Dr. Heitor Viera Dourado (FMT-HVD), Manaus, Amazonas, Brazil
- Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil
| | - Rajendranath Ramasawmy
- Fundação de Medicina Tropical Dr. Heitor Viera Dourado (FMT-HVD), Manaus, Amazonas, Brazil
- Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil
- Universidade Nilton Lins, Manaus, Amazonas, Brazil
| | | | | | - Wornei Silva Miranda Braga
- Fundação de Medicina Tropical Dr. Heitor Viera Dourado (FMT-HVD), Manaus, Amazonas, Brazil
- Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil
| | - Mauricio Lacerda Nogueira
- Fundação de Medicina Tropical Dr. Heitor Viera Dourado (FMT-HVD), Manaus, Amazonas, Brazil
- Faculdade de Medicina de São Jose do Rio Preto (FAMERP), São Jose do Rio Preto, São Paulo, Brazil
| | | | - Felipe Gomes Naveca
- Instituto Leônidas & Maria Deane (ILMD), Fundação Oswaldo Cruz (FIOCRUZ), Manaus, Amazonas, Brazil
| | - Luiz Tadeu Moraes Figueiredo
- Fundação de Medicina Tropical Dr. Heitor Viera Dourado (FMT-HVD), Manaus, Amazonas, Brazil
- Centro de Pesquisas em Virologia, Faculdade de Medicina de Ribeirão Preto (FMRP-USP), Ribeirão Preto, São Paulo, Brazil
| | - Maria Paula Gomes Mourão
- Fundação de Medicina Tropical Dr. Heitor Viera Dourado (FMT-HVD), Manaus, Amazonas, Brazil
- Universidade do Estado do Amazonas (UEA), Manaus, Amazonas, Brazil
- Universidade Nilton Lins, Manaus, Amazonas, Brazil
- * E-mail: (VdCAM); (MPGM)
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