Evidence of Zika virus found in tears

Evidence of Zika virus found in tears

Researchers have found that Zika virus can live in eyes and have identified genetic material from the virus in tears, according to a study from the School of Medicine. The research, in mice, helps explain why some Zika patients develop eye disease, including a condition that can lead to permanent vision loss.
Excess weight linked to 8 more cancer types

Excess weight linked to 8 more cancer types

An international team of researchers, including Washington University School of Medicine in St. Louis, has identified eight additional types of cancer linked to excess weight and obesity: stomach, liver, gall bladder, pancreas, ovary, meningioma (a type of brain tumor), thyroid cancer and the blood cancer multiple myeloma. Limiting weight gain over the decades could help to reduce the risk of these cancers, the data suggest.
Long-term exposure to female scent changes courtship behavior in male mice

Long-term exposure to female scent changes courtship behavior in male mice

A kind of neuron found only in male mice and that detects a pheromone in female urine has been identified by researchers at the School of Medicine. But the sex difference is not hard-wired. By manipulating the mice’s living conditions and exposing male mice to female scents for long periods of time, the scientists showed that males lost these neurons and their interest in courting females.
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