LAURO VIEIRA PERDIGAO NETO
Projetos de Pesquisa
Unidades Organizacionais
LIM/49 - Laboratório de Protozoologia, Hospital das Clínicas, Faculdade de Medicina
6 resultados
Resultados de Busca
Agora exibindo 1 - 6 de 6
- Severe mpox in patients with advanced AIDS: long-term disease and fatal outcome(2023) FARIAS, Luis Arthur Brasil Gadelha; HOLANDA, Pablo Eliack Linhares de; SILVA, Ana Danielle Tavares da; CAVALCANTE, Karene Ferreira; JUCA, Marina Catunda Pinheiro; NETO, Lauro Vieira Perdigao; DAMASCENO, Lisandra SerraHerein, we report two cases of severe mpox in patients with advanced acquired immunodeficiency syndrome from Brazil who developed atypical lesions and prolonged illness, one of whom had a fatal outcome. Both patients experienced serious complications involving the perianal and genital regions and prolonged disease with persistent viremia.
- Case Report: Successful Treatment of Recurrent Urinary Tract Infection Due to Extensively Drug-Resistant Klebsiella Pneumoniae in a Kidney Transplant Recipient Using Chloramphenicol(2023) NETO, Lauro Vieira Perdigao; MACHADO, Anna Silva; SILVA, Riberto Garcia da; SOUZA, Ricardo Barbosa Cintra de; COUTINHO, Saurus Mayer; COMELLO, Florencia; PORTO, Ana Paula Matos; LIMA, Daila Sousa; GIOIA, Thais Sabato Romano di; LIMA, Victor Augusto Camarinha Castro; FARIAS, Luis Arthur Brasil Gadelha; MACEDO, Mariana Rolim Fernandes; NOGUERA, Saidy Liceth Vasconez; ANJOS, Sandra Nascimento dos; TONHEIRO, Chayenne Mika Matsumoto Pinto; COCENTINO, Brunno Cesar Batista; COSTA, Silvia Figueiredo; OLIVEIRA, Maura Salaroli deEffective therapies for multidrug-resistant (MDR) microorganisms, especially Gram-negative bacteria, are becoming rare. Also, solid-organ transplant recipients are at high risk of MDR Gram-negative bacilli infection. Urinary tract infections are the most frequent bacterial infections in kidney transplant recipients and are an important cause of mortality after renal transplantation. We describe a case of complicated urinary tract infection in a kidney transplant patient due to extensively drug-resistant (XDR) K. pneumoniae treated successfully with a regimen comprising a combination of chloramphenicol and ertapenem. We do not recommend chloramphenicol as a first-line choice for treating complicated urinary tract infections. Still, we believe it is an alterna-tive for infections caused by MDR and/or XDR pathogens in renal transplant patients, as other options are nephrotoxic.
- Human Rabies during the COVID-19 Pandemic: Insights into Rabies Worldwide and Brazil(2024) FARIAS, Luis Arthur Brasil Gadelha; CAMINHA, Iusta; NETO, Lauro Vieira Perdigao; CAVALCANTI, Luciano Pamplona de GoesHuman Rabies (HR) is a fatal zoonotic disease caused by lyssaviruses, with the rabies virus (RABV) identified as the causative agent. While the incidence of HR transmitted by dogs has decreased in Latin America, there has been a corresponding rise in transmission via wild animals. Given the lack of effective treatments and specific therapies, the management of HR relies on the availability of post-exposure prophylaxis and animal control measures. This review examines the dynamics and spread of HR during the global pandemic.
- Streptococcus constellatus causing concomitant extra and intracranial abscesses complicated with sagittal sinus thrombosis(2023) FARIAS, Luis Arthur Brasil Gadelha; FIRMINO, Natalia Nogueira; SOUSA, Marcos Maciel; LIRA, Mateus Lavor; MEIRELES, Leonardo Nogueira; STOLP, Angela Maria Veras; MAIA, Kelma Maria; COSTA, Silvia Figueiredo; NETO, Lauro Vieira PerdigaoStreptococcus constellatus is a gram-positive coccus member of the Streptococcus anginosus group (SAG). It can be found in the oral flora, and may cause abscess more commonly in the gastrointestinal tract, lungs, and heart. Brain abscesses are severe neurological infections with high mortality rates. Streptococcus species other than S. pneumoniae are rare causes of brain abscesses. This case report highlights a severe case of extra and intracranial abscesses due to S. constellatus in an immunocompetent host
- Neisseria gonorrhoeae arthritis in a patient with systemic lupus: resistance and virulence profiles(2023) TONACIO, Adriana Coracini; MARCHI, Ana Paula; BAZZO, Maria Luiza; LEMOS, Gabriela Takeshigue; BAMPI, Jose Victor Bortolotto; ESPINOZA, Evelyn Patricia Sanchez; DUARTE, Edson Luiz Tarsia; MARTINS, Roberta Cristina Ruedas; COSTA-LOURENCO, Ana Paula Ramalho da; OLIVEIRA, Vitor Falcao de; CORTES, Marina Farrel; SANTOS, Sania Alves dos; NETO, Lauro Vieira Perdigao; BONELLI, Raquel Regina; ELMORE, Maria Rita; ROSSI, Flavia; HUGHES, Gwenda; COSTA, Silvia FigueiredoIn this study, we describe a case report of gonococcal arthritis in a Systemic Lupus Erythematosus patient. Although several mechanisms favor disseminated gonococcal infection (DGI) in patients immunosup-pressed by SLE, this association is rarely reported in literature. We performed whole genome sequencing (WGS) of the etiologic agent involved and molecular analysis using a global collection of Neisseria gonorrhoeae strains. Ours is the only sample derived from synovial fluid identified in this collection, the others being from the usual anatomical sites. Antimicrobial susceptibility was determined by disk diffusion and Etest, and WGS was conducted to determine multilocus sequence typing profiles, group isolates based on core genome single nucleotide polymorphisms (SNP), and identify virulence genes and antimicrobial resistance determinants. The N. gonorrhoeae samples in the global collection were highly heterogeneous. The SNP tree had a total 19,532 SNPs in 320 samples. Our sample displayed resistance to ciprofloxacin (MIC = 2 mg/mL) and tetracycline (zone diameter = 0 mm) belonged to ST 1588 and was not closely related to any isolate in the global collection of N. gonorrhoeae strains. The isolate had genetic features related to beta-lactam, tetracycline and quinolone resistance. Seventy-one virulence genes were identified in our sample, belonging to the following classes: adherence, efflux pump, immune modulator, invasion, iron uptake, protease and stress adaptation. Moreover, no virulence genes for immune evasion and toxin were identified.(c) 2022 Institut Pasteur.
- Chlorhexidine susceptibility and Eagle effect in planktonic cells and biofilm of nosocomial isolates(2023) MARCHI, Ana Paula; CORTES, Marina Farrel; NOGUERA, Saidy Vasconez; ROSSI, Flavia; LEVIN, Anna Sara; COSTA, Silvia Figueiredo; NETO, Lauro Vieira PerdigaoThe aim of this study is to evaluate the chlorhexidine gluconate (CHG) susceptibility in both planktonic cells and biofilm of 32 Gram-negative (Gn) and 6 Gram-positive (Gp) isolates by minimal inhibitory concentration (2-256 mu g/mL for Gn and 2-32 mu g/mL for Gp), minimal bactericidal concentration (4-256 mu g/mL for Gn and 2-32 mu g/mL for Gp) in planktonic cells, and minimal biofilm elimination concentration (128 >= 16,384 mu g/mL in Gn and 32 >= 16,384 mu g/mL in Gp) in biofilm environment. Our study showed that Gn isolates have higher minimal concentrations than Gp and bacteria in biofilms are more tolerant than planktonic ones. No correlation between MBC or MBEC and biofilm formation was statistically confirmed. The Eagle effect, previously described for antimicrobials and antifungals, was evidenced in this work for CHG, an antiseptic. Besides that, the phenomenon was described in 23/38 isolates (60.5%), raising minimal concentration up to >= 16,384 mu g/mL. Our study showed that clinical isolates have a high ability to form biofilm allowing them to tolerate CHG concentrations as high as the ones used in clinical practice. Therefore, attention should be given to the occurrence of this phenomenon to avoid false susceptibility results.