Toronto<\/p>\n
Scientists, including one of Indian origin, have found that stress transmitted from others can change the brain in the same way as a real stress does.<\/p>\n
The study, in mice, showed that the effects of stress on the brain are reversed in female mice following a social interaction. This was not true for male mice.<\/p>\n
“Brain changes associated with stress underpin many mental illnesses including PTSD, anxiety disorders and depression,” said Jaideep Bains from the<\/p>\n
University of Calgary in Canada.<\/p>\n
\u201cRecent studies indicate that stress and emotions can be contagious. Whether this has lasting consequences for the brain is not known,\u201d Bains said.<\/p>\n
For the study, published in the journal Nature Neuroscience, the researchers studied the effects of stress in pairs of male or female mice.<\/p>\n
They removed one mouse from each pair and exposed it to a mild stress before returning it to its partner.<\/p>\n
They then examined the responses of a specific population of cells, specifically CRH (Corticotropin releasing hormone) neurons which control the brain’s<\/p>\n
response to stress, in each mouse, which revealed that networks in the brains of both the stressed mouse and naive partner were altered in the same way.<\/p>\n
\u201cWhat was remarkable was that CRH neurons from the partners, who were not themselves exposed to an actual stress, showed changes that were identical to<\/p>\n
those we measured in the stressed mice,\u201d said Toni-Lee Sterley from the University of Calgary.<\/p>\n
The researchers discovered that the activation of these CRH neurons causes the release of a chemical signal, an ‘alarm pheromone’, from the mouse that<\/p>\n
alerts the partner.<\/p>\n
The partner who detects the signal can in turn alert additional members of the group.<\/p>\n
This propagation of stress signals reveals a key mechanism for transmission of information that may be critical in the formation of social networks in various<\/p>\n
species.<\/p>\n
The researchers suggested that these findings may also be present in humans.<\/p>\n
“We readily communicate our stress to others, sometimes without even knowing it. There is even evidence that some symptoms of stress can persist in family<\/p>\n
and loved ones of individuals who suffer from PTSD,” Bains said.<\/p>\n","protected":false},"excerpt":{"rendered":"
Toronto Scientists, including one of Indian origin, have found that stress transmitted from others can change the brain in the same way as a real stress does. The study, in mice, showed that the effects of stress on the brain are reversed in female mice following a social interaction. This was not true for male […]<\/p>\n","protected":false},"author":1,"featured_media":25435,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[239],"tags":[],"class_list":["post-25434","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health"],"_links":{"self":[{"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/posts\/25434","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/comments?post=25434"}],"version-history":[{"count":1,"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/posts\/25434\/revisions"}],"predecessor-version":[{"id":25436,"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/posts\/25434\/revisions\/25436"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/media\/25435"}],"wp:attachment":[{"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/media?parent=25434"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/categories?post=25434"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blastingskyhawk.com\/english\/wp-json\/wp\/v2\/tags?post=25434"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}