An international team of researchers has identified a cause for chronic bad breath (halitosis), with the help of gene knockout mice from the UC Davis Mouse Biology Program. The results are published Dec. 18 in the journal Nature Genetics.
Prof. Kent Lloyd, director of the UC Davis Mouse Biology Program, in the lab. Gene-edited and “knockout” mice have become a vital tool in biomedical research. (Karin Higgins/UC Davis photo)
While most cases of bad breath are linked bacteria growing in the mouth, up to 3 percent of the population have chronic halitosis of no obvious cause.
Full post: Mice Help Find Gene for Bad Breath
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By Diane Nelson
Our genes can influence how we respond to stress. Science shows that some people are more genetically predisposed than others to develop depression and anxiety in response to stressful situations.
UC Davis psychologists Johnna Swartz (left) and Jay Belsky have found that genetic traits that make people vulnerable to stress-related mental health problems, are also those best equipped to respond to positive interventions.
What’s more, researchers say that chronic exposure to stressful conditions—such as poverty, family discord, and poor nutrition—can alter the way genes behave in children and adolescents, making them more susceptible to depression, anxiety, and other negative effects of stress.
By Ann Filmer
Plant scientists and wheat breeders now have a new tool to develop more nutritious and productive wheat varieties: A public online database of 10 million mutations in wheat genes. Scientists at UC Davis and three institutions in the UK created the database, which will allow scientists worldwide to study the function of every gene of wheat. The research will be reported in Proceedings of the National Academy of Sciences this week.
UC Davis Plant Sciences Professor, Jorge Dubcovsky is working to improve the yield and nutritional value of wheat, one of the world’s most important crops.