The Role of the IL-10 (-819C/T), TNFA (-308G/A) and ENOS (-786T/C) Polymorphisms of Impulsive and Aggressive Personality Traits in Cocaine/Crack Users.

Cytokines and nitric oxide have been associated with impulsive and aggressive personality traits. We conducted the first study that investigated the role of SNPs in cytokines and nitric oxide genes and the influence in the progression of aggressive and impulsive behavior in 107 of cocaine and crack users. In this case-control, IL-10 (-819C/T), TNFA (-308G/A) and ENOS (-786T/C) polymorphisms were determined by Real-Time PCR. In addition, the relationship between these polymorphisms and Impulsivity and Aggression was determined. We found that the physical aggressiveness sub score was negatively correlated with the C allele of -819C/T polymorphism of the IL-10 (b = -0.14; p = 0.04). The T allele of the SNP -786T/C of the ENOS gene positively predicts traits of physical aggressiveness (b = 0.14; p = 0.04). The GA genotype (b = 0.22; p = 0.01) and the A allele (b = 0.15; p = 0.02) of -308 G/A polymorphism of the TNFA were positively correlated with aggressiveness physical. The GA genotype (b = 0.20; p = 0.03) was positively correlated with aggressiveness verbal. IL-10 (-819C/T), TNFA (-308G/A) and ENOS (-786T/C) polymorphisms might be associated with high risk of aggressive and impulsive behavior.

IL-10 (-819C/T), TNFA (-30G/A) and ENOS (-786T/C) Polymorphisms Modulating the Outcome Related to Mental Disorders in Crack Addicted Users.

Background: Cocaine/crack use affects immune system molecules and development of mental disorders has been identified. Objective: To investigate the relationship of polymorphisms in the TNFA (-308G/A), IL-10 (-819C/T) and ENOS (-786T/C) genes with mental disorders in cocaine and crack users. Methods: A case-control study was carried out, which included 107 cocaine and crack users and 115 controls who never used healthy cocaine and crack. The SNPs in the TNFA (-308G/A), IL-10 (-819C/T) and ENOS (-786T/C) genes were genotyped by real time PCR. Results: As for the individuals included in this study, the average age of 31.4 years (± 8.59). We identified that the G/A genotype to TNFA (-308) (OR = 0.24; p = 0.03) and the A allele (OR = 0.30; p = 0.03) were associated with reduced risk for dysthymic disorder. The T allele of the IL-10 (-819) polymorphism was associated with decreased risk of developing panic disorder (OR = 0.44; p = 0.01), while the C allele was correlated with an increased risk for alcohol dependence (OR = 1.97; p = 0.04), alcohol abuse (OR = 1.81; p = 0.04) and psychotic syndrome (OR = 2.23; p = 0.01). C/C genotype was correlated with increased chances of developing current psychotic syndrome (OR = 4.23; p = 0.01). Conclusion: Our results suggest that genetic polymorphisms promote susceptibility or promote protection for clinical phenotypes of psychiatric comorbidities in cocaine and crack users and be considered as good prognostic markers.

Genetic polymorphisms as multi-biomarkers in severe acute respiratory syndrome (SARS) by coronavirus infection: A systematic review of candidate gene association studies.

The Severe acute respiratory syndrome may be caused by coronavirus disease which has resulted in a global pandemic. Polymorphisms in the population play a role in susceptibility to severity. We aimed to perform a systematic review related to the effect of single nucleotide polymorphisms in the development of severe acute respiratory syndrome (SARS). Twenty-eight eligible articles published were identified in PubMed, ScienceDirect, Web of Science, PMC Central and Portal BVS and additional records, with 20 studies performed in China. Information on study characteristics, genetic polymorphisms, and comorbidities was extracted. Study quality was assessed by the STrengthening the REporting of Genetic Association (STREGA) guideline. Few studies investigated the presence of polymorphisms in HLA, ACE1, OAS-1, MxA, PKR, MBL, E-CR1, FcγRIIA, MBL2, L-SIGN (CLEC4M), IFNG, CD14, ICAM3, RANTES, IL-12 RB1, TNFA, CXCL10/IP-10, CD209 (DC-SIGN), AHSG, CYP4F3 and CCL2 with the susceptibility or protection to SARS-Cov. This review provides comprehensive evidence of the association between genetic polymorphisms and susceptibility or protection to severity SARS-CoV. The literature about coronavirus infection, susceptibility to severe acute respiratory syndrome (SARS) and genetic variations is scarce. Further studies are necessary to provide more concrete evidence, mainly related to Covid-19.

Association of Polymorphisms in Cytokine genes with susceptibility to Precancerous Lesions and Cervical Cancer: A systematic review with meta-analysis.

Objectives: This study investigated the relationship between single-nucleotide polymorphisms (SNPs) in cytokine genes and the susceptibility to Squamous Intraepithelial Lesions (SIL), cervical cancer and HPV infection through a systematic review with meta-analysis. To verify the effect of SNPs, we also analyzed the transcription factor binding affinity using bioinformatics tools.Methods: Seven electronic databases (MEDLINE, Scielo, BIREME, PubMed, Scopus, Web of Science and Science Direct) were searched for case-control studies.Results: A total of 35 relevant case-control studies were meta-analyzed, including 7 cytokine genes and 15 SNPs. SNPs in IL-17A (rs2275913, rs3748067); IL-17 F (rs763780); IL-12A (rs568408); IL-12B (rs3212227); TNFA (rs1800629, rs361525); IL-1B (rs16944); IL-6 (rs1800795); IL-10 (rs1800896) genes were associated with increased risk for cervical cancer. No association was observed between meta-analyzed polymorphisms and SIL. Additional bioinformatics analysis suggested a possible transcriptional regulation pathway of the TNFA and IL-10 genes through the MZF1 (TNFA -308 G > A and IL-10 - 1082A>G) and ZNF263 (TNFA -238 G > A) transcription factors binding.Conclusion: Overall, 10 SNPs in cytokine genes were associated with increased risk for cervical cancer. Therefore, in our meta-analysis, these SNPs demonstrated to be potential biomarkers for predicting or identifying cases of high risk for SIL and cervical cancer.

Association of polymorphisms in serotonin and nitric oxide genes with clinical outcome of dengue in Brazilian northeast population.

Serotonin and nitric oxide seem to be involved in Dengue virus infection. The aim of this study was to investigate if SNPs in serotonin and nitric oxide are associated with dengue severity. A retrospective case-control study was conducted, with groups of dengue fever (DF; n = 78) and dengue hemorrhagic fever patients (DHF; n = 49). Genotyping was performed using qPCR and PCR. The power of the sample size was calculated by G*power software. The heterozygous SL for 5-HTTLPR SNP was significantly correlated with protection against progression to DHF in the codominant SS/SL/LL (OR = 0.22, 95% CI = 0.06-0.81, p = 0.011) and overdominant models SL vs SS + LL (OR = 0.19, 95% CI = 0.06-0.65, p = 0.003). For the ENOS (rs1799983) SNP, the genotype GT was positively associated with protection for development of the clinical form in DHF compared to dengue fever (OR = 0.39, 95% CI = (0.13-1.14), p = 0.0058) in codominant GG/GT/TT and overdominant model GT vs GG + TT (OR = 0.35, 95% CI = (0.12-1.02), p = 0.04). To our knowledge, this is the first study to identify the association of the serotonin and nitric oxide SNPs with dengue severity.

Green Tobacco Sickness among Brazilian farm workers and genetic polymorphisms.

OBJECTIVE: Green Tobacco Sickness (GTS) is an occupational illness caused by dermal absorption of nicotine from tobacco leaves. It affects thousands of farm workers worldwide. Brazil is the second tobacco producer in the world; despite this, there are few studies on GTS among Brazilian harvesters. This study aimed to determine the prevalence of GTS among a population of tobacco workers from a producing area in northeastern Brazil and investigate whether the occurrence of the disease was influenced by factors such age, gender and smoking status. In addition, it was investigated if there was association between the onset of GTS and genetic polymorphisms in genes that encode some detoxification enzymes. A semi-structured questionnaire was used to collect demographic, behavioral and occupational data from the referred workers. Polymorphisms were tested through the Polymerase Chain Reaction technique. RESULTS: The total prevalence of GTS found was 56.9%, with a significant difference between genders (71.7% for women and 35.3% for men, p < 0.0001). No association was identified between the investigated polymorphisms and GTS. This study confirms the occurrence of GTS among tobacco harvesters in Brazil with high prevalence. The investigation suggests the need to take preventive measures to protect tobacco workers against this disease.

Association of TNFA (-308G/A), IFNG (+874 A/T) and IL-10 (-819 C/T) polymorphisms with protection and susceptibility to dengue in Brazilian population.

OBJECTIVE: To evaluate gene polymorphisms and their association with susceptibility to dengue. METHODS: A retrospective case-control study was performed with 262 subjects, comprising 78 dengue fever (DF) patients, 49 dengue hemorrhagic fever (DHF) patients and 135 healthy controls. Genotypic and allelic profiles were identified using polymerase chain reaction based in real time and amplification-refractory mutation system. RESULTS: We observed a protective association of IL-10 (-819 C/T) C allele (P = 0.028, OR = 0.56, CI = 0.34-0.91) against DHF, while the C/T (P = 0.047, OR = 2.10, CI = 1.01-4.38) and T/T (P = 0.008, OR = 3.82, CI = 1.38-10.59) genotypes were associated with DHF and DF, respectively. The dominant model TNFA -308 GA + AA (P = 0.043, OR = 0.45, CI = 0.20-1.00) genotypes were found to have protective effect against dengue infection. A protective association among the IFNG (+874 A/T) A/T genotype against DF (P = 0.02, OR = 0.46, CI = 0.24-0.89) and DHF (P = 0.034, OR = 0.43, CI = 0.19-0.95) was observed. When the studied single-nucleotide polymorphism was analyzed in combination, the combination GTA (P = 0.022, OR = 2.95, CI = 1.18-7.41) was statistically significantly associated with susceptibility to DF and the combination GCT (P = 0.035, OR = 0.28, CI = 0.08-0.90) with protection against the development of DHF. CONCLUSIONS: This research identifies the association of the IFNG (+874 A/T), TNFA (-308G/A), IL-10 (-819 C/T) genotypes as a factor for protection, susceptibility and severity to dengue.

Profile of clinical information in medical records of tobacco farmers in Alagoas, Brazil.

BACKGROUND: The study of the profile of medical records of tobacco growers contributes to discussions on the establishment of diagnosis and its causal correlation with work. OBJECTIVE: To investigate the profile of clinical information in medical records of tobacco growers. METHODS: The present was a descriptive field and documentary study, with quantitative approach, of 149medical records of farmers who visited basic health units in rural communities in the municipality of Arapiraca, Alagoas, Brazil, from 2008 to 2013. RESULTS: About 66% of the investigated population was female, with average age 58.6 years old (standard deviation ±16.4). The most significant clinical complaint found in the records was headache (16.71%), followed by low back pain (10.20%), dysuria or other urinary problems (8.90%) and stomachache (8.30%). Medical diagnoses included gastritis (15.1%), depression (7.1%), anxiety (7.1%), myalgia (7.1%) and arthritis/arthralgia (5.3%). Correlation between clinical complaints and work performed by tobacco growers was registered on one single medical record. CONCLUSION: The clinical profile of tobacco growers described in the medical records might be associated with their social and working conditions and related to pesticide and nicotine poisoning. However, the scarcity of information on the environmental and occupational risk context limits the establishment of a causal link. As a function of the relevance of the occupational-clinical conditions of this population of workers, improving medical records is necessary, as the temporal relationship between exposure and outcomes might account for the occurrence of the reported symptoms.

INTRODUÇÃO: O estudo do perfil dos registros clínicos em prontuários de fumicultores favorece a discussão do estabelecimento do diagnóstico e do nexo causal com o trabalho. OBJETIVO: Identificar o perfil dos registros clínicos em prontuários de fumicultores. MÉTODO: Trata-se de um estudo descritivo de campo e documental com abordagem quantitativa dos registros em 149 prontuários de fumicultores que frequentaram Unidades Básicas de Saúde da Família de comunidades rurais do município de Arapiraca, Alagoas, no período de 2008 a 2013. RESULTADOS: Foi identificado que 66% dos usuários são do sexo feminino, com média de idade de 58,6 anos (desvio padrão - DP±16,4). As queixas clínicas mais expressivas registradas nos prontuários estavam relacionadas à cefaleia (16,71%), seguida por dor lombar (10,20%), disúria ou outros problemas urinários (8,90%) e epigastralgia (8,30%). Quanto aos diagnósticos médicos, destacaram-se gastrite/epigastralgia (15,1%), depressão (7,1%), ansiedade (7,1%), mialgia (7,1%) e artrite/artralgia (5,3%). A correlação das queixas clínicas como trabalho desenvolvido pelos fumicultores foi registrada em apenas um prontuário. CONCLUSÃO: O perfil clínico dos fumicultores apresentado nos prontuários poderia estar associado às condições sociais e de trabalho e inter-relacionado com a intoxicação por agrotóxicos e nicotina. Porém, a escassez de registros contextualizando o ambiente e os riscos ocupacionais torna limitante o nexo causal. Pela relevância do quadro clínico-ocupacional desses trabalhadores, faz-se necessária a melhoria dos registros, o que poderia justificar os sintomas apresentados levando em consideração as relações temporais entre a exposição e o desfecho.

Meta-Analysis of the Relationship between TNF-α (-308G/A) and IL-10 (-819C/T) Gene Polymorphisms and Susceptibility to Dengue.

OBJECTIVE: This study determined whether tumor necrosis factor alpha (TNF-α) and Interleukin-10 (IL-10) polymorphisms are associated with susceptibility to dengue. METHODS: a systematic review with meta-analysis was conducted of the associations between the TNF-α (-308G/A) and IL-10 (-819C/T) polymorphisms and dengue. RESULTS: A total of eight case-controls studies involving 384 individuals with symptomatic dengue, 571 individuals with dengue hemorrhagic fever, and 995 healthy controls were considered in the meta-analysis. There was no significant association between TNF-α (-308G/A) and IL-10 (-819C/T) polymorphism and dengue in overall population. However, stratifying meta-analysis by groups, the meta-analysis revealed association between the TNF-α -308 G/G (OR: 1.62, CI: 1.02-2.57, p = 0.04) genotype and allele G (OR: 1.62, CI: 1.04-2.55, p = 0.03) that confers susceptibility to symptomatic dengue, while the TNF-α -308 G/A genotype (OR: 0.69, CI = 0.39-0.99, p = 0.04) and allele A (OR: 0.64, CI: 0.41-1.00, p = 0.05) confers protection to symptomatic dengue. No difference was observed for the TNF-α (-308) and IL-10 (-819C/T) polymorphisms in the comparisons of hemorrhagic dengue versus control and hemorrhagic dengue versus symptomatic dengue. CONCLUSION: This meta-analysis showed that TNF-α (-308) polymorphism is associated with dengue symptomatic susceptibility.