Everything Old is New Again?

Hi All!

I just saw this on the sympatico site and thought you might find it interesting:

The vampire trend just won’t die. And now there’s some medical muscle from the Stanford University School of Medicine to back the benefits of blood-sucking. (Hear me out.)

The study suggests that when older mice were injected with blood from their more youthful counterparts, they experienced a “rejuvenating effect.” With the help of young blood, aging mice generated three times the amount of nerve cells as they normally would.

And it works both ways. When the plasma of older mice was injected into young mice, the production of new nerve cells in the brain slowed down.

Obviously, this doesn’t directly apply to humans but here’s the takeaway: What in blood is causing this? And can scientists use this information to reverse the clock on dementia or Alzheimer’s?

Turns out it might be a protein called eotaxin. Older mice have more of this protein circulating in their blood, compared with young mice. Young mice injected with eotaxin generated fewer nerve cells and experienced memory loss. 

The scientists are now studying the role eotaxin could have on aging brains. Eventually, this research might lead to the end of the age-old question, “Where’d I put my car keys?”

– Marlene Rego, web editor, besthealthmag.ca


About tracygagnon

Tracy’s life-long passions have intertwined to create an interesting career. Since childhood, Tracy has loved writing, public speaking and fitness. She graduated from Carleton University’s School of Journalism in 1986. Since that time, she has written for the Ottawa Citizen newspaper, created and written several newsletters, written award-winning technical manuals, as well as marketing materials, reference check reports, proposals and other materials. She has written for all levels of government, private industry and the not-for-profit sector on a variety of subjects. Throughout her life, Tracy has also found herself publicly presenting various types of information—from teaching small children to swim and adult fitness classes to presenting communication seminars and creative speeches (through Toastmasters International). In order to pull all her interests together, she created Inward Journeys in 1994. Her purpose was to help individuals and groups draw out their potential. She wrote programs on communication, teamwork, self-esteem and motivation. Each program was interactive and very often had a physical element to help participants internalize key points. Some of her experiential team adventures included: rock climbing, whitewater rafting, sailing and dogsledding. The final thread from childhood was a love of fitness, which was already manifest from the days of Participaction and flexed arm hangs (yuk!) to Inward Journeys and finally onto a new challenge at Carleton University. At 42 she became a fitness instructor at Carleton U—a dream she had had since she was 16! Eventually she was offered a full time contract position, where was able to finally put all of her skills to work as a writer, presenter and fitness enthusiast. She created the Fitness Now newsletter, the To Your Health blog, and taught fitness classes to people from all walks of life. After a year and a half, however, her contract wasn’t renewed and it was time to move on to a new adventure. Her passions have never dimmed and because of that Tracy has created a new fitness blog called Along the Fitness Trail. Please join her on her new adventure.
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