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Dr. Bob is Robert Hsiung, MD,
bob@dr-bob.orgShown: posts 1 to 9 of 9. This is the beginning of the thread.
Posted by SLS on August 18, 2014, at 14:49:31
Our genes determine the traces that stress leaves behind on our brains.
http://www.meduniwien.ac.at/homepage/1/news-and-topstories/?tx_ttnews[tt_news]=5025&cHash=0001f37d9ebf2d59defeb837fd1d34fc
"According to the results of the study, just how stressful life events impact on the size of the hippocampus depends on more than just environmental factors. There are genes that determine whether the same life event causes an increase or decrease in the volume of the hippocampus, and which therefore defines whether the stress is good or bad for our brain. The more risk genes an individual has, the more negative an impact the "life events" have on the size of the hippocampus. Where there are no or only a few risk genes, this life event can actually have a positive effect"
"The study highlights the importance of gene and environment interaction as a determining factor for the volume of the hippocampus. "These results are important for understanding neurobiological processes in stress-associated illnesses such as depression or post-traumatic stress disorder. It is ultimately our genes that determine whether stress makes us psychologically unwell or whether it encourages our mental health,"
- Scott
Posted by Phillipa on August 18, 2014, at 16:25:28
In reply to Genes, posted by SLS on August 18, 2014, at 14:49:31
Nothing on the link blank other than name of University?
Posted by Beckett on August 18, 2014, at 17:47:59
In reply to Genes, posted by SLS on August 18, 2014, at 14:49:31
I'll need to refresh myself on the role of the hippocampus.
Are there ways to nourish the hippocampus?
I pulled up a blank page, too.
Posted by SLS on August 18, 2014, at 18:03:24
In reply to Re: Genes, posted by Beckett on August 18, 2014, at 17:47:59
http://www.sciencedaily.com/releases/2014/08/140818094834.htm
- Scott
Posted by SLS on August 18, 2014, at 19:15:54
In reply to Re: Genes, posted by Beckett on August 18, 2014, at 17:47:59
> Are there ways to nourish the hippocampus?
Low-dose lithium.
Valproate
Successful sustained antidepressant treatment.
Exercise (aerobic and resistance)
DHA (Docosahexanoic acid)
Sex!
Minocycline (Minnipress)
Tianeptine (Stablon)
Sertraline (Zoloft)?
Vortioxetine (Brintellix)?
Memantine (Namenda)?
Growth hormone
Meditation
Cannabidiol?
- Scott
Posted by Phillipa on August 18, 2014, at 20:25:54
In reply to Re: Genes - Link, posted by SLS on August 18, 2014, at 18:03:24
Explains why family has history of anxiety. same as my bones I am a product of my genes. Thanks past generations!!! Phillipa
Posted by alexandra_k on August 19, 2014, at 14:50:15
In reply to Re: Genes - Link, posted by SLS on August 18, 2014, at 18:03:24
http://www.scientificamerican.com/article/london-taxi-memory/
taxi drivers in london had bigger hippocampuses (hippocampi?) than taxi drivers in other places. and than normal controls. i think... i think i get that right...
they thought that the hippocampus played a significant role in spatial representation. mapping the complexities of london streets. pretty sure that a lot of work has focused on the role of the hippocampus in memory and spatial orientation (especially with respect to maze running in critters).
the hippocampus is fairly centrally located. 'relay station of the brain'. pretty sure thats the catchphrase i needed for the multiguess... jolly hard to find a process that it is NOT involved in.
back to the london cab drivers... i guess one would predict that they would be lacking in these risky genes? also that they wouldn't report history of particular trauma or something like that.
i'm wary about this 'delay the size of the hipppocampus forever'. firstly, because when it comes to brains size doesn't matter so much as organization and... stuff we know not what. remember the stuff on how we only use 80% of our brain anyway??? on just how surprisingly normal people are who have lost significant portions of their brain due to injury (especially when those injuries occurred relatively early during development - but also when those injuries occur later in life). those london cabbies... do we think that their hippocampuses were big in the first place and (crudely) that's how come they had a place to put all that information... or do we think that the process of learning resulted in the brain region growing?
i wonder how well these small hippocampus people can be trained to run mazes or navigate streets or computer games... or perhaps it is pointless to try...
Posted by Beckett on August 19, 2014, at 19:14:23
In reply to Re: Genes - Link, posted by alexandra_k on August 19, 2014, at 14:50:15
I remember that about London cabbies. (NPR?). It's amazing how the brain can be shaped by tasks required, such as one's mother tongue. Music, too. Etc.
Posted by SLS on August 20, 2014, at 8:12:32
In reply to Re: Genes - Link, posted by Beckett on August 19, 2014, at 19:14:23
> I remember that about London cabbies. (NPR?). It's amazing how the brain can be shaped by tasks required, such as one's mother tongue. Music, too. Etc.
Growing up with music can enhance one's IQ and cognitive performance later in life.
- Scott
This is the end of the thread.
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