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The manifestations of histamine intolerance, or, adverse reactions to ingested histamine, are not confined to the gastrointestinal system, and are usually systemic, affecting the entire body; still, these symptoms are often sporadic and non-specific: [5] [6] [7] symptoms attributed to histamine intolerance are wide-ranging and may affect various physiological systems, including the skin ...
As a solution for the rapid metabolism of histamine, the measurement of histamine and its metabolites, particularly the 1,4-methyl-imidazolacetic acid, in a 24-hour urine sample, provides an efficient alternative to histamine measurement because the values of these metabolites remain elevated for a much longer period than the histamine itself.
Isolated reports of scombroid food poisoning in humans caused by histamine present in the tissues of stale or rotten scombroid fish, usually tuna, have occurred over the years. In September 2016, authorities in Singapore intercepted canned tuna imported from Thailand after finding high levels of histamine. [12] No human cases were reported.
Packages of frozen yellow fin tuna steaks sold at Whole Foods Market stores in more than two dozen states are being recalled due to concerns about high levels of histamine that could cause a ...
Mast cell activation syndrome (MCAS) is a term referring to one of two types of mast cell activation disorder (MCAD); the other type is idiopathic MCAD. [1] MCAS is an immunological condition in which mast cells, a type of white blood cell, inappropriately and excessively release chemical mediators, such as histamine, resulting in a range of chronic symptoms, sometimes including anaphylaxis or ...
Firstly, biochemical literature [8] has shown that trypsin has a weak ability to liberate histamine, being only effective when present at high concentrations. Fibrolysin is simply unable to release histamine at all per se. [8] Moreover, a quantitative relationship between protease concentration and the amount of histamine released has not been ...
DAO levels in the blood circulation increase vastly in pregnant women suggesting a protective mechanism against adverse histamine. [12] Histamine is a potent vasodilator and can cause uterine contractions, which can lead to premature labor. DAO in the placenta breaks down histamine to prevent its accumulation and maintain a healthy pregnancy.
IgE that can specifically recognise an allergen (typically this is a protein, such as dust mite Der p 1, cat Fel d 1, grass or ragweed pollen, food protein, etc.) has a unique long-lived interaction with its high-affinity receptor FcεRI so that basophils and mast cells, capable of mediating inflammatory reactions, become "primed", ready to ...