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Washington State University
College of Arts and Sciences Interdisciplinary

Breastfeeding while COVID‑19 positive

An infant.Breastfeeding women who have COVID-19 transfer milk-borne antibodies to their babies without passing along the SARS-CoV-2 virus, according to a new study.

“The results indicate that it is safe for moms to continue to breastfeed during a COVID-19 infection with proper precautions,” said Courtney Meehan, a WSU anthropology professor and co-author on the study published » More …

Collaborative research indicates behavioral effect of vaporized cannabis

Medicinal cannabis.A study conducted by a team of WSU researchers found rats with regular access to cannabis seek more of the substance and tend to show increased drug-seeking behavior when cannabis is absent.

The research—a collaboration of chemists, psychologists, and neuroscientists—is the next step in better understanding cognitive and neural effects of cannabis use in humans. » More …

Cannabis use and entrepreneurial creativity

Cannabis.New venture ideation is critical to the entrepreneurial process. To generate creative ideas, some entrepreneurs turn to cannabis, proposing its benefits.

A new study by WSU psychology and business professors found cognitive, motivational, and experiential factors jointly shape creativity in new venture ideation. And while cannabis-using entrepreneurs in the study generated new business ideas that were more original—such as a weightless, gravity-free virtual » More …

Archeologists identify marigold residue in ancient Maya flasks

Ancient paneled flask.WSU scientists identified the presence of a non-tobacco plant in ancient Maya drug containers for the first time.

“While it has been established that tobacco was commonly used throughout the Americas before and after contact, evidence of other plants used for medicinal or religious purposes has remained largely unexplored,” said anthropology postdoc and research lead Mario Zimmermann. “The analysis methods » More …

Cannabis use blunts stress reactivity in female rats

Medicinal Marijuana.Female rats that inhaled vaporized cannabis daily for a month developed a blunted physiological response to stress, according to a new study by WSU researchers.

In contrast, male rats that were provided access to the same potency of cannabis over the same 30-day window did not experience any physiological changes in » More …

How scientists tracked down a mass killer (of salmon)

Every fall, more than half of the coho salmon that return to Puget Sound’s urban streams die before they can spawn. In some streams, all of them die. But scientists didn’t know why.

Now, a team led by researchers at Washington State University and the University of Washington has discovered the answer. When it rains, stormwater flushes bits of aging vehicle tires on roads into neighboring streams. The killer is in the mix of chemicals that leach from tire wear particles: a molecule related to a preservative that keeps tires from breaking down too quickly. » More …

The power of symbiosis

Stephanie Porter.“Understanding the complex and often positive role the microbiome plays in the health of plants and animals has precipitated a real renaissance in biology,” says microbiologist Stephanie Porter, who studies the evolution of cooperation and plant–microbe symbiosis. “There’s been a blossoming of ideas due to new genomic tools for understanding this microbiome—the set of all microbes that live in and on plants and animals.”

“But there’s also been a shift in our thinking about microbes. We’ve moved from microbes being viewed strictly as the cause of diseases or that they are at best harmless, to thinking they have » More …

More economic worries mean less caution about COVID‑19

Hands and hand sanitizer.Workers experiencing job and financial insecurity are less likely to follow the CDC’s guidelines for COVID-19, such as physical distancing, limiting trips from home and washing hands, according to a study led by WSU Vancouver psychology professor Tahira Probst.

“We all have a finite set of resources at our disposal, whether it’s money, time or social support, and individuals who have fewer of those resources appear » More …

WSU research behind potential Alzheimer’s drug

Leen Kawas and Joe Harding.It was 1991 and medicinal chemist Joe Harding was in his lab researching potential new options for relieving high blood pressure. Anomalies kept showing up in his lab tests, and if they meant what he thought they might, he and his research partner, WSU psychology professor John (Jay) Wright, were on the brink of a different breakthrough.

“I kept getting phone calls from Joe, and on each one he was more excited,” recalls Wright, who at the time was » More …

Examining risks, benefits of breastfeeding during COVID-19

Woman with infant. COVID-19 has brought with it new questions related to the benefits and/or potential risks of breastfeeding during this pandemic. Is the SARS-COV2 virus present in breast milk and could it be transmitted from mom to baby? Could antibodies found in breast milk actually help protect babies from the SARS-COV2 virus?

Researchers at WSU are leading a new nationwide study on COVID-19 and infant feeding to help answer these questions. Their work could ultimately help scientists better understand how COVID-19 affects the health and immune responses of mothers and » More …