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Psilocybin Grows New Brain Cells

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Thanks corpus callosum! That is a great and useful description of the variety of different cell types beyond neurones most directly involved in brain functioning. (The support staff, if you will, for the neurones)

I would like to clarify your last point that "Any neurogenesis taking place in the CNS (ie making 'new' NEURONS) will be taking place as a result of the maturation of pre-existing stem cells rather than a de novo process."

Actually, there is evidence that the progenitor (stem) cells in certain regions of the brain actually do divide as they differentiate/mature. So yes, any neurogenesis is the result of the maturation of pre-existing stem cells, but it seems that part of that process includes mitotic division. I am ignorant as to what is considered a de novo process of cell division, so this point may or may not contradict what you wrote. (Neurogenesis in Adult Subventricular Zone)
 
InfiniteFacticity said:
Thanks corpus callosum! That is a great and useful description of the variety of different cell types beyond neurones most directly involved in brain functioning. (The support staff, if you will, for the neurones)

I would like to clarify your last point that "Any neurogenesis taking place in the CNS (ie making 'new' NEURONS) will be taking place as a result of the maturation of pre-existing stem cells rather than a de novo process."

Actually, there is evidence that the progenitor (stem) cells in certain regions of the brain actually do divide as they differentiate/mature. So yes, any neurogenesis is the result of the maturation of pre-existing stem cells, but it seems that part of that process includes mitotic division. I am ignorant as to what is considered a de novo process of cell division, so this point may or may not contradict what you wrote. (Neurogenesis in Adult Subventricular Zone)
Click to expand...

Nice link! :thumb_up:

The purpose of my post was to clarify the issue of 'brain cells', a vague term (IMO), and to point out that 'growing new brain cells' could suggest to the casual reader that the process under discussion may involve new cells appearing without a progenitor source.

Good stuff is neuroscience. :)
 
I love this. It is fine if it is a thesis from some intern, its evidence. And cheers to corpus callosum for the head-y break down. Lovin' you nexus for trying to figure out this mystery and show the positivity of this wonderful set of molecules.
 
Fantastic thread, thanks so much for sharing that and for all the good info, amazing! As well as psilocybin, ibogaine, ketamine, cannabis, exercise and fasting have all been implicated with neurogenesis to some degree.
 
The paper on this is attached for anyone interested.

Catlow, B.J., Song, S., Paredes, D.A., Kirstein, C.L. & Sanchez-Ramos, J. (2013) Effects of psilocybin on hippocampal neurogenesis and extinction of trace fear conditioning. Experimental Brain Research.
 

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1.5mg/kg, that would obliterate your mind...

That's 120mg for a 80KG adult. Poor little mice. I hope that their receptors don't bind well with psilocybin.

Threshold 3 - 4 mg
Light 4 - 8 mg
Common 6 - 20 mg
Strong 20 - 40 mg
Heavy 35 + mg

Am I missing something?
 
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