All University of São Paulo articles
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NewsArboviruses, mosquitoes and potential hosts tracked in real time
The technology used to sequence the first infections by SARS-CoV-2 at record speed has been successfully tested as a technique to monitor viruses transmitted by mosquitoes, such as dengue, zika, chikungunya and yellow fever.
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NewsStudy describes strategy for inactivation of multidrug-resistant bacteria
Zinc oxide nanoparticles with varying morphologies were tested against microorganisms isolated from patients.
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NewsStudy maps main genes involved in immune response to infection by dengue virus
Researchers compared data for the immune response induced by natural infection and vaccines. They identified the key factors in the development of long-lasting immunity.
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NewsStudy reveals how the chikungunya virus deploys multiple organ attack and leads to death
An international team including virologists, physicians, epidemiologists, clinicians, physicists and statisticians has discovered new mechanisms related to central nervous system infection in fatal cases of the infection
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NewsRare case of opossum infected by rabies sounds alarm for urban environments
The opossum was found dead in a park in the center of Campinas, a large city in São Paulo state (Brazil), with the same viral variant as fruit-eating bats. These mammals are regularly detected in cities, where they are often attacked by dogs.
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NewsCases of chikungunya and zika fall in Brazil, but most risk clusters rise
Researchers observed spatial and temporal patterns of occurrence and co-occurrence for the two arboviral diseases in all Brazilian municipalities, alongside the influence of environmental and socio-economic factors.
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NewsScientists unlock the secrets of disease-causing fungus Aspergillus fumigatus
A new study demonstrates the pivotal role of the Mitogen-Activated Protein kinase MpkA in both gliotoxin production and self-protection.
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NewsResearchers report detailed analysis of heart injury caused by yellow fever virus
The study is the first-ever demonstration of the anatomical substrate for the cardiac arrhythmias that occur in human yellow fever.
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NewsPhotodynamic action weakens resistance to antibiotics in bacteria that attack airways
A study of photodynamic inactivation (PDI) showed it has a novel capacity to modify bacterial sensitivity to antibiotics according to dosage, reducing the resistance and persistence of both standard and clinical strains.
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NewsStudy reveals bacterial protein capable of keeping human cells healthy
Researchers describes a hitherto unknown protein with anti-oxidizing properties secreted by Coxiella burnetii, a Gram-negative intracellular bacterium, pointing to possible treatments for auto-immune diseases and even cancer
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NewsStudy demonstrates antimicrobial action of polyalthic acid from copaiba oil
Polyalthic acid from copaiba oil is an effective antibacterial and should be used to develop alternative medications that can contribute to the effort to overcome antimicrobial resistance, according to a new study.
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NewsProgramme helps fund 16 Global South healthcare hubs to combat infectious diseases
A York University-led programme is helping bolster healthcare in the Global South by providing more than $5.8 million in funding for 16 projects in as many countries.
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NewsSanitized ready-to-eat salad may contain disease-causing bacteria
A review of research on minimally processed vegetables highlights cases of unsatisfactory microbiological safety and calls for best practice assurance throughout the supply chain.
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NewsGlitter impairs growth of cyanobacteria, study shows
Use of glitter in makeup, party costumes and decorations should be reconsidered, say researchers who investigated the effects of five concentrations of glitter on two strains of cyanobacteria.
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NewsMicrobe-rich Amazon dark earth boosts tree growth as much as sixfold
Brazilian scientists analyzed the typical soil composition resulting from native management with the aim of developing biotech applications for more effective restoration of degraded areas.
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NewsTwo new Antarctic bacteria species yield valuable cold-adapted enzymes
Scientists are experimenting with two new bacteria discovered in the Antarctic ten years ago, in order to verify the possibility of applications in healthcare, food processing and environmental rehabilitation.
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NewsLeishmania parasite manipulates organism’s defense system to keep replicating
Researchers have shown how protozoans of the genus Leishmania that cause leishmaniasis manipulate a protein that plays an essential role in the organism’s defense in order to continue to replicate, preventing the body from vanquishing the disease.
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NewsPeptide combats multidrug-resistant bacteria in less than one hour
A synthetic peptide inspired by molecules secreted by the probiotic bacterium Lactobacillus plantarum has presented promising antibacterial results within one hour in laboratory trials.
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NewsSleep supplement impairs action of gut microbiota
Despite its antioxidant effects and role in regulating sleep cycles, tests show melatonin can worsen inflammation of the intestine and impair the action of gut microbiota.
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NewsObese pregnant women infected by zika virus have impaired immune response
Researchers have shown for the first time that gestational obesity associated with infection by zika virus influences the placenta’s antiviral response, weakening the organ’s capacity to attack the pathogen and protect the foetus.
