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Microplastics, defined as plastic particles smaller than 5 millimeters, can be as fine as baby powder, with some particles being even smaller, down to a few micrometers or nanometers. Their small size allows them to be easily carried by the wind and inhaled into the human respiratory system, much like fine dust particles. Key sources of microplastics in the atmosphere include the shedding of fibers from synthetic textiles, wear and tear from vehicle tires, and industrial processes that produce [...]

In an paper recently published in the journal Proceedings of the National Academy of Sciences, researchers at the Optics and Photonics Research Center (CePOF) in Brazil and collaborators at the University of Toronto and Princess Margaret Cancer Center describe for the first time the effective use of a specific type of phototherapy to eradicate ocular melanoma in mice. The results pave the way for a more effective and less invasive way to treat the disease. Current strategies to treat ocular [...]

Fundacao de Amparo a Pesquisa do Estado de Sao Paulo or Sao Paulo Research Foundation reports on a study revealing that the major bivalent COVID-19 vaccine induces production of neutralizing antibodies against the coronavirus that circulated at the start of the pandemic as well as subvariants of omicron, albeit less abundantly. The study outcome was reported in the Journal of Medical Virology. The primary goal of the study remained the original strain that predominated at the start of the [...]

In a new study, researchers at the University of São Paulo (USP) in Brazil found COVID-19 survivors with at least one persistent symptom (long COVID) were 57% more likely to be sedentary, and the presence of five or more long COVID symptoms increased the odds of physical inactivity by 138%. The study was published in the journal Scientific Reports. Long COVID, also called “post-acute sequelae of SARS-CoV-2” (PASC) is defined as the illness that occurs [...]

While not in the majority, a band of front-line doctors has been in the trenches responding to the COVID-19 pandemic seeking patient-first regimens based on repurposed drugs and other non-pharmaceutical interventions with an aim of saving more lives and reducing the suffering among a growing long COVID patient population. Controversial in an age of top-down, national protocol-driven medicine, doctors advocating for alternative points of view in some cases have paid with their licenses. The [...]