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Home / Archives for Dietze R

Efficient transplacental IgG transfer in women infected with Zika virus during pregnancy

  • Autores: Singh T, Lopez CA, Giuberti C, Dennis ML, Itell HL, Heimsath HJ, Webster HS, Roark HK, Merçon de Vargas PR, Hall A, Corey RG, Swamy GK, Dietze R, Lazear HM, Permar SR
  • Ano de Publicação: 2019
  • Journal: Plos Neglected Tropical Diseases
  • Link: https://www.ncbi.nlm.nih.gov/pubmed/31449521

Zika virus (ZIKV) is a newly-identified infectious cause of congenital disease. Transplacental transfer of maternal IgG to the fetus plays an important role in preventing many neonatal infections. However, antibody transfer may also have negative consequences, such as mediating enhancement of flavivirus infections in early life, or trafficking of virus immune complexes to the fetal […]
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Natural resistance of leishmania infantum to miltefosine contributes to the low efficacy in the treatment of visceral leishmaniasis in Brazil

  • Autores: Carnielli JBT, Monti-Rocha R, Costa DL, Molina Sesana A, Pansini LNN, Segatto M, Mottram JC, Costa CHN, Carvalho SFG, Dietze R
  • Ano de Publicação: 2019
  • Journal: The American Journal of Tropical Medicine and Hygiene
  • Link: https://www.ncbi.nlm.nih.gov/pubmed/31436148

In India, visceral leishmaniasis (VL) caused by Leishmania donovani has been successfully treated with miltefosine with a cure rate of > 90%. To assess the efficacy and safety of oral miltefosine against Brazilian VL, which is caused by Leishmania infantum, a phase II, open-label, dose-escalation study of oral miltefosine was conducted in children (aged 2-12 years) and adolescent-adults […]
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Circulating senescent T cells are linked to systemic inflammation and lesion size during human cutaneous leishmaniasis

  • Autores: Covre LP, Martins RF, Devine OP, Chambers ES, Vukmanovic-Stejic M, Silva JA, Dietze R, Rodrigues RR, de Matos Guedes HL, Falqueto A, Akbar AN, Gomes DCO
  • Ano de Publicação: 2019
  • Journal: Frontiers in Immunology
  • Link: https://www.ncbi.nlm.nih.gov/pubmed/30662437

Leishmania (Viannia) braziliensis induces American tegumentary leishmaniasis that ranges in severity from the milder form, cutaneous (CL) to severe disseminated cutaneous leishmaniasis. Patients with CL develop a cell-mediated Th1 immune response accompanied by production of inflammatory cytokines, which contribute to parasite control and pathogenesis of disease. Here, we describe the accumulation of circulating T cells with […]
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Transmission phenotype of mycobacterium tuberculosis strains is mechanistically linked to induction of distinct pulmonary pathology

  • Autores: Verma S, Bhatt K, Lovey A, Ribeiro-Rodrigues R, Durbin J, Jones-López EC, Palaci M, Vinhas SA, Alland D, Dietze R, Ellner JJ, Salgame P
  • Ano de Publicação: 2019
  • Journal: PLoS Pathogens
  • Link: https://www.ncbi.nlm.nih.gov/pubmed/30840702

In a study of household contacts (HHC), households were categorized into High (HT) and Low (LT) transmission groups based on the proportion of HHC with a positive tuberculin skin test. The Mycobacterium tuberculosis (Mtb) strains from HT and LT index cases of the households were designated Mtb-HT and Mtb-LT, respectively. We found that C3HeB/FeJ mice […]
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Host determinants of infectiousness in smear-positive patients with pulmonary tuberculosis

  • Autores: Acuña-Villaorduña C, Ayakaka I, Schmidt-Castellani LG, Mumbowa F, Marques-Rodrigues P, Gaeddert M, White LF, Palaci M, Ellner JJ, Dietze R, Joloba M, Fennelly KP, Jones-López EC
  • Ano de Publicação: 2019
  • Journal: Open Forum Infectious Diseases
  • Link: https://academic.oup.com/ofid/article/6/6/ofz184/5446015

Background Epidemiologic data suggests that only a minority of tuberculosis (TB) patients are infectious. Cough aerosol sampling is a novel quantitative method to measure TB infectiousness. Methods We analyzed data from three studies conducted in Uganda and Brazil over a 13-year period. We included sputum acid fast bacilli (AFB) and culture positive pulmonary TB patients […]
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About GHTM

GHTM is a R&D Center that brings together researchers from IHMT with a track record in Tropical Medicine and International/Global Health. It aims at strengthening Portugal's role as a leading partner in the development and implementation of a global health research agenda. Our evidence-based interventions contribute to the promotion of equity in health and to improve the health of populations.

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