LTT borrelia
Use of the lymphocyte transformation test in clinical testing for chronic borreliosis
The lymphocyte transformation test with Borrelia antigens detects the cellular immune response mounted by blood lymphocytes against Borrelia proteins. This test is only positive when Borrelia-specific T cells circulate in the patient’s blood. These show that at the time of blood collection the immune system has been involved in an immunological interaction with Borrelia antigens (active borreliosis).
The observation that after effective antibiotic treatment in most cases the LTT becomes negative or at least the intensity of the stimulation indices (SI) considerably decreases, further supports the view that LTT results indeed reflect the activity of the infection. The result of the LTT Borrelia thus informs the treating doctor about the effectiveness of the antibiotic treatment in the respective patient.
A negative result in the LTT-Borrelia, however, does not rule out an active infection with absolute certainty. Therefore, the evaluation of the clinical picture should always come first in the diagnosis of borreliosis and the indication for treatment based on it.
The indications for LTT Borrelia are:
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LTT borrelia active
LTT borrelia negative
Negative LTT results are seen:
- in individuals who never contracted a Borrelia infection
- in clinical healthy, seropositive individuals
- approx. 6-8 weeks after antibiotic treatment of an active borreliosis (baseline results as you can see here)
For more information about the clinical symptoms, diagnostic workup and treatment of Lyme borreliosis see the guidelines of the German Borreliosis Society (DBG) which has been translated into numerous languages. See: www.borreliose-gesellschaft.de/Texte/guidelines.pdf
What sampling material is required?
20 mL fresh heparin blood + 5 mL whole blood (please do not refrigerate)
Literature
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