Publications by authors named "Mike Dos Santos"

is a protozoan, and the etiologic agent of toxoplasmosis, a disease that causes high mortality in immunocompromised individuals and newborns. Despite the medical importance of toxoplasmosis, few drugs, which are associated with side effects and parasite resistance, are available for its treatment. Here, we show a screening of molecules present in COVID-Box to discover new hits with anti- activity.

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Article Synopsis
  • - Toxoplasmosis is a severe disease particularly affecting immunocompromised individuals and newborns, but treatment options are limited and can lead to resistance and side effects.
  • - Researchers identified twenty-three compounds from the Medicines for Malaria Venture Pandemic Box that significantly inhibited the growth of Toxoplasma tachyzoites in lab tests, with many being previously unreported for this use.
  • - Detailed analyses showed that some of these compounds caused major structural damage to the parasites, suggesting they could be promising candidates for new therapies against acute toxoplasmosis.
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Introduction: Human T-lymphotropic virus (HTLV) infection is endemic in indigenous populations of the Americas. We describe herein the prevalence of HTLV-1 and HTLV-2 infection among Warao indigenous refugees from Venezuela living in Belém, Pará, Brazil.

Methods: In total, 101 individuals of both sexes (43 men and 58 women) between 18 and 77 years of age were investigated.

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Background: Human polyomavirus 2 (HPyV2 or JCPyV) is persistent in the environment due to its excretion in urine and feces; it is detected in samples of wastewater, surface water and drinking water. A lack of basic sanitation and sewage collection results in the presence of this virus in food, especially in oysters, since they are bioaccumulators and are consumed in their natural form, thus posing a risk to human health.

Methods: This study investigated the frequency of HPyV2 in samples of oysters marketed in northeastern Pará State, Brazil, and optimized a real-time PCR (qPCR) protocol for the detection of an endogenous oyster control.

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Background: A rare phenotype of clinical non-progressors to AIDS is not well understood and the new protocol for universal treatment, may block the understanding of viral control thus it is crucial to define this controversial group.

Methods: A cohort of 30 persons followed a criteria for viremia control groups 1 (VC1; n = 2) and 2 (VC2; n = 7) and non-viral controllers (NC; n = 21) including number of years of diagnosis, LTCD4, LTCD8 counts, plasma viral load and the absence of ART; 241 uninfected control persons were matched to age and sex. Infected persons were regularly examined and submitted to two or three annual laboratory measurements.

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