INT14600
From wiki-pain
|
|
|
|
|
Sentences Mentioned In
Key: | Protein | Mutation | Event | Anatomy | Negation | Speculation | Pain term | Disease term |
Recently, methylhistamine, the major metabolite of histamine, and the specific mast cell marker, tryptase, were shown to be significantly elevated in urine of interstitial cystitis patients. | |||||||||||||||
| |||||||||||||||
|
However, the tryptase levels in 24 h urine samples were greatly elevated only in patients with IC, both before (P < 0.005), and especially after NaCl treatment and dialysis (P < 0.001). | |||||||||||||||
| |||||||||||||||
|
The other patient with similar symptoms showed no increase in the level of tryptase, nor any specific IgE to thiopentone or suxamethonium. | |||||||||||||||
| |||||||||||||||
|
One of the patients showed a highly elevated serum level of tryptase reaching 26 micrograms/l 30 min after the initial reaction. | |||||||||||||||
| |||||||||||||||
|
The increased tryptase concentrations indicate that death was preceded by systemic mast-cell degranulation. | |||||||||||||||
| |||||||||||||||
|
Tryptase concentrations were increased in only 50% of these patients. | |||||||||||||||
| |||||||||||||||
|
Mucosal content of tryptase was increased in IBS and mast cells spontaneously released more tryptase (3.22 +/- 3.48 pmol/min/mg vs. 0.87 +/- 0.65 pmol/min/mg, respectively; P = 0.015) and histamine (339.7 +/- 59.0 ng/g vs. 169.3 +/- 130.6 ng/g, respectively; P = 0.015). | |||||||||||||||
| |||||||||||||||
|
Tryptase levels are not increased during vancomycin-induced anaphylactoid reactions. | |||||||||||||||
| |||||||||||||||
|
CONCLUSION: Plasma tryptase levels were not significantly elevated in confirmed anaphylactoid reactions, so they can be used to distinguish chemical from immunologic reactions.
| |||||||||||||||
| |||||||||||||||
|
CONCLUSION: Serum levels of tryptase are not elevated in patients with acute coronary syndromes. | |||||||||||||||
| |||||||||||||||
|
Increased tryptase concentration in serum is a marker for systemic mast cell activation. | |||||||||||||||
| |||||||||||||||
|
Nine observations were itemized (0.047%): 3 generalized erythema observations (grade I), in which atracurium was incriminated twice, and propacetamol once; 2 observations of grade II, in which vecuronium (elevated tryptase) and atracurium were incriminated; 4 anaphylactic shocks, in which three neuromuscular blocking drugs (suxamethonium, vecuronium and pancuronium), and one antibiotic (cloxacilline) were incriminated. | |||||||||||||||
| |||||||||||||||
|
Elevated mast cell tryptase in the urine of patients with interstitial cystitis. | |||||||||||||||
| |||||||||||||||
|
In 32%, the concentration of tryptase was elevated (> or = 10 micrograms/l), and the mean value of tryptase was significantly different from a control group dying from known, nonimmunologic causes (P < 0.05). | |||||||||||||||
| |||||||||||||||
|
HYPOTHESIS: Acute coronary events (acute myocardial infarction and unstable angina pectoris) are associated with increased mast cell activity, reflected by elevated serum tryptase levels. | |||||||||||||||
| |||||||||||||||
|
Changes in tryptase (at peak histamine and 10 min after vancomycin infusion), histamine levels, and histamine-mediated symptoms were assessed using Fisher's exact test, the Student's t test, or the paired t test, as appropriate. | |||||||||||||||
| |||||||||||||||
|
Application to the measurement of serum tryptase]. | |||||||||||||||
| |||||||||||||||
|
The mast cell tryptase was also significantly elevated at 76 microg/L, (Normal 2-14 microg/L). | |||||||||||||||
| |||||||||||||||
|
There was a significant difference in the incidence of positive intradermal tests, radioimmunoassay tests and evidence of an IgE-mediated reaction in patients whose mast cell tryptase concentrations were increased. | |||||||||||||||
| |||||||||||||||
|
Seven of 143 patients whose mast cell tryptase concentrations were not increased at appropriate sampling times had positive tests for IgE antibodies, and in 33 of 158 patients with increased mast cell tryptase concentrations no IgE antibodies were detected. | |||||||||||||||
| |||||||||||||||
|
General Comments
This test has worked.