Klebsiella pneumoniae (K. pneumoniae) is an opportunistic bacterium that has drawn attention due to its resistance to carbapenem antibiotics. The treatment of patients with severe infections has been challenging. Thus, silver nanoparticles (AgNPs) have been applied for their antimicrobial effects. This work aims to analyze the synergistic effect of the carbapenem antibiotic Imipenem with AgNPs against different susceptibility clinical profiles of K. pneumoniae. The silver nanoparticles were synthesized by bottom-up methodology and capped with alpha-lipoic acid. Susceptibility tests were performed using four K. pneumoniae strains with different susceptibility profiles to Imipenem. The strains were induced to form a biofilm for 48 h. Crystal violet and Resazurin assays were performed to determine biofilm formation and minimal inhibitory concentration, respectively. The reduction in Imipenem concentration with the association of nanoparticles was found in all strains studied in planktonic form, and the synergism between silver nanoparticles and Imipenem was demonstrated through the analysis of the fractional inhibitory concentration index. The viability percentage was reduced at rates ≥80% in the biofilm analysis, characterized by the minimal biofilm inhibitory concentration. The study’s proposed association resulted in inhibitory effects on different K. pneumoniae profiles, both in planktonic forms and biofilm, with peculiar behavior in the Imipenem-resistant profile.
O objetivo do estudo foi analisar a redução da intensidade da dor, melhora da qualidade de vida e avaliar a necessidade de tratamento cirúrgico em pacientes com lombociatalgia após o tratamento com Terapia de Fotobiomodulação Customizada desenvolvida pela Bright Photomedicine. Primeiramente, foram recrutados pela equipe de coluna do Qualivida da NotreDame Intermédica seis pacientes diagnosticados com lombociatalgia para realizar sessões de Terapia de Fotobiomodulação Customizada. No início da terapia e no follow-up de um mês os pacientes foram submetidos aos questionários: Inventário Breve de Dor, Escala Visual Analógica, Avaliação da Qualidade de Vida (SF-36) e Questionário de Incapacidade de Dor Lombar de Oswestry Modificado (m-OSW). Os pacientes ainda foram avaliados com relação ao Consumo de Medicamentos, Indicação Cirúrgica e Atendimentos em Pronto Socorro. Os resultados obtidos a partir da análise de dados mostraram que houve redução significativa da dor dos pacientes ao longo das sessões e melhora na qualidade de vida na maioria dos casos. No follow-up de um mês nenhum paciente procurou atendimento no Pronto Socorro e apenas um entre os seis pacientes tinha indicação cirúrgica após o tratamento. Estes resultados indicam o potencial da Terapia de Fotobiomodulação Customizada como ferramenta para melhorar a qualidade de vida de pacientes que sofrem com a lombociatalgia.
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