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A study from Massachusetts General Hospital researchers finds that the brains of young adult marijuana users react differently to social exclusion than do those of non-users. In a report published in the March issue of Biological Psychiatry: Cognitive Neuroscience and Neuroimaging, the team reports that activation of the insula, a region of the brain that is usually active during social rejection, was reduced in young marijuana users when they were being excluded from participation in virtual game of catch.
In Ewing sarcoma, cancer cells' DNA is unwound abnormally from a condensed, compact state. Once sections of genetic code are open, key genes are turned on to help direct aggressive and cancerous cell growth.
Researchers recently reviewed current knowledge on links between autophagy and coronaviruses and how this knowledge can be used to repurpose autophagy modulators as potential treatment options for COVID-19. The review is published in the journal Frontiers in Microbiology.
By carefully controlling the levels of two proteins, researchers at the Salk Institute have discovered how to keep mammary stem cells-those that can form breast tissue-alive and functioning in the lab. The new ability to propagate mammary stem cells is allowing them to study both breast development and the formation of breast cancers.
Virginia lawmakers backed off a proposal Wednesday to require women seeking abortions get an transvaginal ultrasound after Gov. Bob McDonnell said he wouldn't support it. Virginia House lawmakers instead approved an amended bill requiring only an external ultrasound.
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