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However, in supposedly affected individuals, ingesting histamine through food at levels well below those associated with scombroid poisoning (from eating spoiled fish) can lead to symptoms related to histamine intolerance. [9] [12] [1] [14] In the ICD-11, there is a condition "XM74Y6 Scombroid fish seafood poison", [2] but not "histamine ...
These same low levels have been associated with primary hypersomnia in general in mouse studies. "Mice with systemic carnitine deficiency exhibit a higher frequency of fragmented wakefulness and rapid eye movement (REM) sleep, and reduced locomotor activity." Administration of acetyl-L-carnitine was shown to improve these symptoms in mice. [70]
Histamine is an organic nitrogenous compound involved in local immune responses communication, as well as regulating physiological functions in the gut and acting as a neurotransmitter for the brain, spinal cord, and uterus.
One study found that men with moderate-to-high levels of exhaustion had a 2.7-fold increased risk of heart attack within five years and a 2.25 higher risk within ten years. The study also found a ...
During that time, many dietitians advised that a diet devoid of histamine-liberating foods was the ideal strategy to prevent symptoms of histamine intolerance from manifesting. Lists of foods deemed to be histamine-liberating were published in various scientific articles, which included fermented sausages, cured cheese, wine and beer. [11]
Mosquito bite allergies are informally classified as 1) the skeeter syndrome, i.e., severe local skin reactions sometimes associated with low-grade fever; 2) systemic reactions that range from high-grade fever, lymphadenopathy, abdominal pain, and/or diarrhea to, very rarely, life-threatening symptoms of anaphylaxis; and 3) severe and often ...
Thus, the term "hereditary angioedema with normal C1-inhibitor" is now generally used for this HAE type. Normal C1 inhibitor level hereditary angioedema is thought to involve various mutations that increased bradykinin activity and cause a decreased threshold for activation of the plasma contact system thus leading to the symptoms of angioedema ...
Plasma and urinary histamine levels are frequently elevated in mast cell leukemia. Histidine decarboxylase (HDC) is the enzyme that catalyzes the reaction which produces histamine from histidine. Measurement of histidine carboxylase in the marrow cells of patients with mast cell leukemia is a very sensitive marker of mast cells.