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1.
Rio de janeiro; s.n; 2018. 259 p. ilus.
Thesis in Portuguese | LILACS, BBO | ID: biblio-1007604

ABSTRACT

Os objetivos desse estudo foram avaliar a expressão de citocinas no soro e fluido gengival, a produção de arginina-peptidil-deiminase (anti-PPAD) e o perfil microbiológico de pacientes com lúpus eritematoso sistêmico juvenil (LESj) e comparar com indivíduos saudáveis sistemicamente. Como objetivo secundário, avaliamos o impacto do tratamento da inflamação gengival sobre a expressão das citocinas e dos níveis de anti-PPAD. Participaram do estudo 30 pacientes com LESj (idade média: 16,2 ± 1,5 anos) e 29 sem doença sistêmica (idade média 15,5 ± 2,3 anos), ambos com gengivite. Foram coletados dados reumatológicos, periodontais, sangue, fluido gengival e biofilme intrassulcular. As citocinas foram analisadas pelo multiensaio multiplex; anti-PPAD pelo ensaio de imunoabsorção enzimática (ELISA) e níveis bacterianos pelo checkerboard DNA-DNA hybridization. Para avaliar variáveis categóricas foi utilizado o teste Qui-quadrado de Pearson; para as numéricas, o teste U de Mann-Whitney e para as correlações a estatística tau-b de Kendall. No estudo longitudinal, foi utilizado o teste de McNemar para dados qualitativos, e o de Wilcoxon para dados numéricos. No estudo transversal, o grupo teste apresentou maiores níveis de profundidade de bolsa à sondagem (PBS), nível de inserção clínica (NIC), % de placa e sangramento do que o controle. Na análise do soro, G-CSF foi significativamente maior e TNF-α significativamente menor no grupo teste. Na análise do fluido gengival, IL-1ß, IL-7, IL-8, IL-13, G-CSF, IFN-γ e MCP-1 foram significativamente maiores e IL-4, IL-12(p70) e GM-CSF significativamente menores no grupo teste. Não houve diferença significativa nos níveis de anti-PPAD entre os grupos. S. constellatus, A. actinomycetencomytans, E. saburreum, V. parvula, S. intermedius, C. showae e F. nucleatum foram significantemente mais numerosas no grupo teste e A. gerencseriae e T. denticola no grupo controle. Após o tratamento da inflamação gengival, o SLEDAI, %NIC 1-2 e NIC reduziram significantemente. Já os valores de PBS e %NIC 0 aumentaram. No soro, houve diminuição significativa da IL-4 e IL-5 e aumento significativo dos níveis de anti-PPAD após o tratamento. Já no fluido gengival, houve diminuição significativa da IL-1ß, IL-10 e MCP-1 e aumento significativo da IL-4, IL-12(p70), IL-17, GM-CSF e INF-α. Sendo assim, podemos concluir que pacientes com LESj apresentaram piores condições periodontais, PBS, NIC, % de placa e sangramento do que pacientes saudáveis sistemicamente. A análise de citocinas mostrou um aumento do G-CSF e TNF-α no soro e de IL-1ß, IL-7, IL-8, IL-13, G-CSF, IFN-γ e MCP-1 no fluido gengival dos pacientes com LESj. Foram identificados anticorpos anti-PPAD nos pacientes com LESj, o que pode servir como gatilho para a quebra da tolerância imunológica. O estudo longitudinal intervencionista demonstrou que o tratamento da inflamação gengival melhorou significantemente os parâmetros %NIC 1-2 e NIC. Houve uma pequena, porém significante, piora na PBS, a qual acreditamos não ter relevância clínica. Observamos também uma melhora significante no SLEDAI e dos níveis de IL-4 e IL-5 no soro e um aumento das citocinas IL-12, IL-17 e GM-CSF no fluido gengival. Já em relação ao anticorpo anti-PPAD, observamos um aumento significativo após o tratamento da inflamação gengival.


The objectives of this study were to evaluate the expression of cytokines in serum and gingival fluid, the production of arginine-peptidyl-deiminase (anti-PPAD) and the microbiological profile of patients with juvenile systemic lupus erythematosus (jSLE) and compare with systemically healthy individuals. As a secondary objective, we evaluated the impact of treatment of gingival inflammation on cytokine expression and anti-PPAD levels. Thirty patients with jSLE (mean age: 16.2 ± 1.5 years) and 29 without systemic disease (mean age 15.5 ± 2.3 years), both with gingivitis, participated in the study. Rheumatological and periodontal data, blood, gingival fluid and intrassulcular biofilm were collected. Cytokines were analyzed by multiplex multi-assay; anti-PPAD by enzyme-linked immunosorbent assay (ELISA) and bacterial levels by checkerboard DNA-DNA hybridization. Pearson's Chi-square test was used to evaluate categorical variables; Mann-Whitney U test for numerical variables and Kendall's tau-b statistic for correlations. In longitudinal study, McNemar test was used for qualitative data, and Wilcoxon test for numerical data. In cross-sectional study, test group presented higher levels of probing depth (PD), clinical attachment level (CAL), % of plaque and bleeding than control group. In serum analysis, G-CSF were significantly higher and TNF-α significantly lower in test group. In analysis of gingival fluid, IL-1ß, IL-7, IL-8, IL-13, G-CSF, IFN-γ and MCP-1 were significantly higher and IL-4, IL-12(p70) and GM-CSF were significantly lower in test group. There was no significant difference in anti-PPAD levels between groups. S. constellatus, A. actinomycetencomytans, E. saburreum, V. parvula, S. intermedius, C. showae and F. nucleatum were significantly more numerous in test group and A. gerencseriae and T. denticola in control group. After treatment of gingival inflammation, SLEDAI, % CAL 1-2 and CAL decreased significantly. Already the values of PD and % CAL 0 increased. In serum, there was a significant decrease in IL-4 and IL-5 and a significant increase in anti-PPAD levels after treatment. In gingival fluid, there was a significant decrease in IL-1ß, IL-10 and MCP-1 and significant increase in IL-4, IL-12 (p70), IL-17, GM-CSF and INF-α. Thus, we can conclude that patients with jSLE presented worse periodontal conditions, PBS, NIC, % plaque and bleeding than systemically healthy patients. Cytokine analysis showed an increase in serum G-CSF and TNF-α and IL-1ß, IL-7, IL-8, IL-13, G-CSF, IFN-γ and MCP-1 in gingival fluid of patients with jSLE. Anti-PPAD antibodies have been identified in patients with jSLE, which may serve as a trigger for impaired immune tolerance. Longitudinal interventional study demonstrated that treatment of gingival inflammation significantly improved % CAL 1-2 and CAL parameters. There was a small, but significant worsening in PBS, which we believe has no clinical relevance. We also observed a significant improvement in SLEDAI and levels of IL-4 and IL-5 in serum and an increase in cytokines IL-12, IL-17 and GM-CSF in gingival fluid. Regarding the anti-PPAD antibody, we observed a significant increase after the treatment of gingival inflammation.


Subject(s)
Humans , Male , Female , Adolescent , Cytokines , Dysbiosis , Gingivitis/therapy , Lupus Erythematosus, Systemic , Antibodies , Enzyme-Linked Immunosorbent Assay , Periodontal Index , Statistics, Nonparametric , Gingivitis/immunology , Gingivitis/microbiology , Lupus Erythematosus, Systemic/immunology , Lupus Erythematosus, Systemic/microbiology
2.
Rev. méd. Chile ; 137(10): 1367-1374, oct. 2009.
Article in Spanish | LILACS | ID: lil-534046

ABSTRACT

Despite the availability of newer therapeutic interventions to improve clinical outcome in patients with Systemic Lupus Erythematosus (SLE), the incidence of infections as a cause of morbidity and mortality has not changed over the past 30 years. SLE itself increases the risk of infection, due to genetic (complement deficiencies) and acquired factors such as functional asplenia (humoral immunodepression) and the use of immunosuppressive drugs. These medications increase the risk of opportunistic infections that are associated with an altered cellular immune response. The main etiologic infectious agents in SLE patients are common bacterial pathogens, especially capsulated ones. The most common sites are lung, skin, bladder, brain and systemic infections. The main risk factor for infection is the history of a previous one. The clinical approach to SLE patients with suspected infectious diseases must consider the possibility of a flare up of the underlying disease, posing an additional problem to the clinician.


Subject(s)
Humans , Lupus Erythematosus, Systemic/microbiology , Lupus Erythematosus, Systemic/prevention & control , Lupus Erythematosus, Systemic/therapy , Risk Factors
3.
Rev. colomb. reumatol ; 9(4): 312-315, dic. 2002. ilus
Article in Spanish | LILACS | ID: lil-346511

ABSTRACT

Presentamos el caso clínico de una paciente de 28 años de edad con Lupus Eritematoso Sistémico (LES), con compromiso a nivel neurológico central, riñon y sistema hematológico, con tratamiento crónico de esferoides y desnutrición avanzada, quien desarrolla sepsis por Salmonella enteritidis, germen aislado en muestras tomadas en lavado bronco alveolar, sangre y materia fecal. Presentó un absceso pulmonar izquierdo y severa dificultad respiratoria. Recibió tratamiento con Ciprofloxacina con mejoría favorable. Pocas semanas después fallece en sepsis y con deterioro de su estado general. Se realiza una discusión en relación con la asociación de LES e infecciones por salmonelas, sus factores predisponentes y su papel en la mortalidad en este tipo de casos


Subject(s)
Lupus Erythematosus, Systemic/complications , Lupus Erythematosus, Systemic/microbiology , Salmonella enteritidis
5.
Rev. méd. Costa Rica Centroam ; 66(546): 35-8, ene.-mar. 1999. ilus
Article in Spanish | LILACS | ID: lil-257267

ABSTRACT

El propósito de este estudio es determinar la frecuencia de anticuerpos anti-tiroideos (anti-tiroglobulina y anti-microsoma) en pacientes con lupus eritemaso sistémico y artritis reumatoide. Cuarenta y seis pacientes con lupus y 73 pacientes con artritis reumatoide fueron estudiados y comparados con 110 controles (donadores de sangre). Los resultados mostrados anticuerpos en 12 pacientes con lupus (26.9 por ciento), en 9 pacientes con artritis reumantoide (12.3 por ciento) y en 9 donadores de sangre (8.1 por ciento). Cuatro pacientes con artritis reumatoide (5.47 por ciento) presentan hipotiroidismo y 1 hipertiroidismo (6.5 por ciento). En conclusión los pacientes con lupus eritematoso sistémico, tienen una frecuencia aumentada de anticuerpos anti-tiroides, cuando se comparan con la población normal (p. 0.01)


Subject(s)
Humans , Male , Female , Arthritis, Rheumatoid/diagnosis , Arthritis, Rheumatoid/blood , Antibodies/analysis , Antibodies/blood , Blood Chemical Analysis , Lupus Erythematosus, Systemic/diagnosis , Lupus Erythematosus, Systemic/etiology , Lupus Erythematosus, Systemic/microbiology , Lupus Erythematosus, Systemic/blood , Costa Rica
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