Research Use Only. Not for Use in Diagnostic Procedures.
Product Distribution
Available Worldwide
Range
2.5 - 250 µg/ml
Sensitivity
1.2 µg/ml
Sizes
96 Wells
Sample Types
EDTA Plasma, Serum, Urine
Inc Time Overnight
No
Inc Time See Protocol
No
Sample Size
20
Detection
Colorimetric
L-Tryptophan is one of the essential amino acids for the human metabolism and must be part of its diet. In humans, it serves as a precursor for the synthesis of the neurotransmitters serotonin and tryptamine as well as for the synthesis of nicotinic acid and the epiphyseal hormone melatonin. Tryptophan is catabolized to kynurenine through the enzyme IDO (indoleamine-2,3-dioxygenase). Research demonstrates that increased IDO activity is an expression of neuro-endocrineimmunological dysregulation, which is often associated with depressive symptoms such as bipolar disorder (manic depression). In addition, research shows that tryptophan and its metabolites regulate neurobehavioral effects such as appetite, sleeping-waking-rhythm, and pain perception.
1. What percentage of your IgE allergy testing panel consists of molecular allergens rather than allergen extracts? The ALEX2 IgE allergen panel consists of 117 extracts and 183 molecular allergens. This represents the largest panel of molecular allergens on the market, including 50 unique...
Cases of food and environmental allergies have been increasing over the last decade. While conservative estimates suggest IgE-mediated allergy affects 6-8% of children and 2-3% of adults, some estimates are as high as 30%.3, 2 Symptoms can range from mild to severe and include itching, hives,...
Food sensitivity or food intolerance involves a non-allergic response to a food or food additive. In a recent on-line survey conducted in the U.S., 24% of adults aged 18 to 79 reported a food intolerance. While a food allergy is typically mediated by IgE antibodies, adverse reactions to food...
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