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Welcome to the Quality Counts. For those health conscious consumers and medical professionals that are looking to purchase nutritional supplements, vitamins, herbs, learning about medications, losing weight, health food, low carbs, high protein nutrition, and exercise, you have come to the right place. Quality Counts serves both the medical practitioner and consumer interested in nutritional therapy and alternative medicine.
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Anti-aging Research > L-Lysine
L-Lysine
Specific Recommendations:
News & Research:
-
L-lysine
may help schizophrenia sufferers cope - Science Daily, 4/17/11 -
"patients
who received L-lysine alongside their normal medication found some reduction in
the severity of their symptoms"
-
Research identifies the herbal supplements that are effective in treating
anxiety - Science Daily, 10/6/10 - "A systematic
review of research into the use of nutritional supplements for the treatment
of anxiety disorders has found strong evidence for the use of extracts of
passionflower or kava and combinations of L-lysine and L-arginine ... We
found mixed results -- while passionflower or kava and L-lysine and
L-arginine appeared to be effective, St John's Wort and magnesium
supplements were not"
- Anxiety
Caused by Lysine Deficiency - Healthwell Exchange
Daily News, 7/1/04
- Vanity Medicine - Nutrition Science News, 11/00
- Hair Loss and Thyroid Disease - About.com, 6/10/99
- "In a recent study, Dr Hugh Rushton, a professor at Portsmouth University, also found that 90 percent of
women with thinning hair were deficient in iron and the amino acid lysine.
Lysine is the most difficult amino acid to get enough of via diet. Lysine
helps transport iron, which is the most important element in the body and
essential for many metabolic processes. When lysine and iron levels are low,
the body probably switches some hair follicles off to increase levels
elsewhere"
Abstracts:
-
Nutritional and herbal supplements for anxiety and anxiety-related
disorders: systematic review - Nutr J. 2010 Oct 7;9(1):42 -
"based on this systematic review, strong evidence
exists for the use of herbal supplements containing extracts of
passionflower or kava and combinations of L-lysine and L-arginine as
treatments for anxiety symptoms and disorders. Magnesium-containing
supplements and other herbal combinations may hold promise, but more
research is needed before these products can be recommended to patients. St.
John's wort monotherapy has insufficient evidence for use as an effective
anxiolytic treatment"
-
Oral treatment with L-lysine and L-arginine reduces anxiety and basal
cortisol levels in healthy humans - Biomed Res. 2007 Apr;28(2):85-90 -
"the treatment with L-lysine and
L-arginine decreased the basal levels of salivary cortisol and chromogranin-A (a salivary marker of the sympatho-adrenal system) in male
subjects"
-
Biomarkers of arginine and lysine excess - J Nutr. 2007
Jun;137(6):1662S-8S - "Arginine
supplementation is used in several disease states. In arginine-deficient
states, supplementation is a logical choice of therapy. However, the
definition of an arginine-deficient state is complex. For example, plasma
arginine levels could be within normal range but intracellular arginine
levels could be reduced because of membrane transport problems. Lysine
competes with arginine for transport into the cell. In these situations,
arginine supplementation of higher than required levels is proposed.
Arginine has several important functions in metabolism as it is a precursor
of metabolically active components such as nitric oxide (NO), ornithine,
creatine, and polyamines"
-
Nutritional factors and hair loss - Clinical & Experimental Dermatology,
7/02 - "serum
ferritin concentrations were a factor in female hair loss ... The role
of the essential amino acid, l-lysine in hair
loss also appears to be important. Double-blind data confirmed the findings
of an open study in women with increased hair shedding, where a significant
proportion responded to l-lysine and iron therapy"
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