Neuroscientists have known for some time that inflammatory cytokines cause the brain to release higher levels of glutamate — the more intense the inflammation, the higher the brain glutamate level. The highest levels are found in the prefrontal lobes and limbic system, the areas most related to mood control. MSG also increases brain inflammation.
For quite some time it was known that depression could cause a loss of neurons in the hippocampus of the brain-the area most important for recent memory (declarative memory or working memory), the form of memory most affected in Alzheimer‘s disease.
This shrinkage of the brain usually occurred with long-term depression, yet it was shown, using sophisticated testing, that even without brain shrinkage, memory could be adversely affected. Some antidepressants could not only reverse the memory loss but could reverse the shrinkage as well.
The implication was that the elevated brain glutamate, via excitotoxicity, was destroying brain connections and later killing brain cells in the hippocampus and that the antidepressants were lowering brain glutamate levels. Subsequent studies have confirmed that drugs that block excitotoxicity also reduce depression and that some antidepressants reduce brain glutamate levels.
SHOOT: So you can take antidepressants, or - to lower your glutamate levels, avoid MSG foods.
For quite some time it was known that depression could cause a loss of neurons in the hippocampus of the brain-the area most important for recent memory (declarative memory or working memory), the form of memory most affected in Alzheimer‘s disease.
This shrinkage of the brain usually occurred with long-term depression, yet it was shown, using sophisticated testing, that even without brain shrinkage, memory could be adversely affected. Some antidepressants could not only reverse the memory loss but could reverse the shrinkage as well.
The implication was that the elevated brain glutamate, via excitotoxicity, was destroying brain connections and later killing brain cells in the hippocampus and that the antidepressants were lowering brain glutamate levels. Subsequent studies have confirmed that drugs that block excitotoxicity also reduce depression and that some antidepressants reduce brain glutamate levels.
SHOOT: So you can take antidepressants, or - to lower your glutamate levels, avoid MSG foods.
 clipped from dprogram.netResearchers have also discovered that most people with major depressive disease (MDD) have higher levels of the neurotransmitter glutamate in their spinal fluid (CSF) and blood plasma. This is the same glutamate found as a food additive-for example, MSG (monosodium glutamate), hydrolyzed proteins, calcium or sodium casienate, soy protein isolate, vegetable protein concentrate or isolate, etc. Much of the free glutamate in the brain of depressed people comes from within, that is it escapes from special cells within the brain itself (microglia and astrocytes). Free glutamate, that is, existing outside the neurons, is very toxic to brain connections and brain cells themselves — mainly by a process called excitotoxicity. This connection between high brain glutamate levels and major depression was discovered quite by accident, when researchers observed that the anesthetic drug ketamine could relieve depression for a prolonged period.
|
No comments:
Post a Comment