The biosynthesis of other amino acids and some neurotransmitters are derived from the essential amino acid Phenylalanine that can also be converted to tyrosine by a biochemical process in the liver. L-Phenylalanine produces neurotransmitters that the brain uses to manufacture norepinephrine, a natural stimulant that creates a sense of well being. Phenylalanine is involved in the production of phenylethylamine, a brain stimulant. L-Phenylalanine inhibits enzymes that break down endorphin hormones. •
Phenylalanine in the L-form s required by the thyroid for normal function, controls appetite, and act as an anti-depressant by increasing moods. May enhance the ability to learn and the retention of memory.
L-phenylalanine has been shown to be involved in the control of appetite. Phenylalanine has been demonstrated that in the gut, phenylalanine, triggers the release of cholecystokinin (CCK). CCK may induce satiety. Phenylalanine is being used today as an appetite suppressant. Phenylalanine is a precursor to norepinephrine (the brains version of adrenaline) and dopamine in the brain.
Precursor to Tyrosine, which, in turn, is the precursor to the neurotransmitters: Dopamine and the excitatory neurotransmitters Norepinephrine and Epinephrine.
Precursor to the hormone, Thyroxine.
Enhances mood, clarity of thought, concentration, and memory.
Suppresses appetite.
Major part of collagen formation.
While the L-form of all of the other amino acids is the one that is beneficial to people, the D and DL forms of Phenylalanine have been useful in treating pain.
DL-Phenylalanine is useful in reducing arthritic pain.
Powerful anti-depressant.
Used in the treatment of Parkinson's Disease.
See Tyrosine. It is more powerful and safe in raising the level of norepinephrine, and thereby treating depression.
Phenylalanine is the most commonly found aromatic amino acid in proteins and enzymes with a molar ratio of 3.5 percent compared to the other amino acids, about double the amount of any other aromatic amino acid.
In Studies: Studies have shown that depressed people seem to have extremely low levels of phenylethylamine.
Clinical research found that when endorphins were administered intravenously sudden and dramatic anti-depressant actions occurred, especially in suicidal patients. L-Phenylalanine inhibits enzymes that break down endorphin hormones.
D-Phenylalanine D-Phenylalanine is the dextrorotory form of the amino acid Phenylalanine. The L-Forms (Levorotory) of amino acids are ones that are bioavailable and are for protein synthesis and regulatory function. The L and D forms are like mirror images of one another, however D-Phenylalanine is not absorbed into the body, but acts as an inhibiting agent to the enzymes that are responsible for the breakdown of endorphins, which control pain perception. D-Phenylalanine can effectively raise your body’s natural endorphin levels when needed, with little or no increase in blood pressure. testing
DL-Phenylalanine DL-Phenylalanine is a form of Phenylalanine which is an important foundation for all other amino acids. DL-phenylalanine refers to a racemic mixture consisting of 50% D-phenylalanine and 50% L-phenylalanine. Functions very similar to the L-form of phenylalanine, but contains the D form bond with the L form, and has been found effective when used as a pain reliever. DL-Phenylalanine is helpful after an allergic reaction, cold or flu to restore sense of well-being. DL-Phenylalanine promotes relief from symptoms that may interfere with normal sleep.
Signs or Symptoms of a Deficiency: Anxiety, Depression, Obesity, Cancer, AIDS, Parkinson's Disease
Excess maybe seen in: Caution: Phenylalanine should be avoided in:
High blood pressure. Has hypertensive properties and should be avoided with people with high blood pressure.
Pregnancy.
Pigmented melanoma.
PKU (phenylketonuria).
Panic disorder/anxiety attacks.
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