Phosphatidylserine serine

<p>&nbsp;</p>

<p><strong>Phosphatidylserine</strong>&nbsp;(abbreviated&nbsp;<strong>Ptd-L-Ser</strong> or&nbsp;<strong>PS</strong>) is a&nbsp;<a title="Phospholipid" href="http://en.wikipedia.org/wiki/Phospholipid">phospholipid</a> component, usually kept on the<strong> inner-leaflet (the cytosolic side) of cell membranes by an enzyme</strong> called&nbsp;<a title="Flippase" href="http://en.wikipedia.org/wiki/Flippase">flippase</a>.&nbsp;
When a cell undergoes&nbsp;<a title="Apoptosis" href="http://en.wikipedia.org/wiki/Apoptosis">apoptosis</a>, phosphatidylserine is no longer restricted to the cytosolic part of the membrane, but becomes exposed on the surface of the cell.</p>

<p>Early studies got it from bovine brain.
Now, its gotten from cabbage or soybean &nbsp;(concerns abt mad cow).
has similar FAs.</p>

<p>a prelim study in rats showed it was effective in 1 of 3 behav tests...</p>

<p>later studies found... does NOT affect memory or other cog fxns.</p>

<p>On May 13, 2003 FDA said &nbsp;no significant sci agreement of reltn btn PhosSerine and reduced risk of dementia or cog dysfunc.</p>

<p>All 10 interventions tests were seriously flawed...
most evidence does NOT support a reln to reduced dementia or cog dysfxn.</p>

<p>v limited prelim sci res... &nbsp;little sci evidence supports that claim.</p>

<p>sports claim, &nbsp;ADHD claim;</p>

<p>lots in soy lecithin...
and in fish... tuna, herring, mackerel..</p>