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The rapid plasma reagin test (RPR test or RPR titer) is a type of rapid diagnostic test that looks for non-specific antibodies in the blood of the patient that may indicate an infection by syphilis or related non-venereal treponematoses. It is one of several nontreponemal tests for syphilis (along with the Wassermann test and the VDRL test).
After seroconversion, the antibody is detectable by standard techniques and remains detectable unless the individual seroreverts, in a phenomenon called seroreversion, or loss of antibody detectability, which can occur due to weakening of the immune system or decreasing antibody concentrations over time. Seroconversion refers the production of ...
These heterotypic titers decrease over long time periods (4 to 20 years). [41] While heterotypic titers decrease, homotypic IgG antibody titers increase over long time periods. This could be due to the preferential survival of long-lived memory B cells producing homotypic antibodies. [41]
A certified personal trainer shares the 10 best physical activities and exercises for women over 50 to live longer. ... helps prevent bone loss and can even increase it. Bone loss is a major issue ...
Black women experience advanced diagnoses 55% more often than white women and are more likely to die from the disease, the study found. Late-stage breast cancer is rising, especially among Black ...
As a San Antonio, Texas-based swimming coach, 65-year-old Ingraham continues to crush her personal goals. She says that at 63, she swam in a four-day staged open water swim, without a wetsuit, in ...
Serology is the scientific study of serum and other body fluids.In practice, the term usually refers to the diagnostic identification of antibodies in the serum. [1] Such antibodies are typically formed in response to an infection (against a given microorganism), [2] against other foreign proteins (in response, for example, to a mismatched blood transfusion), or to one's own proteins (in ...
The fluorescent treponemal antibody absorption (FTA-ABS) test is a diagnostic test for syphilis.Using antibodies specific for the Treponema pallidum species, such tests would be assumed to be more specific than non-treponemal testing such as VDRL but have been shown repeatedly to be sensitive but not specific for the diagnosis of neurosyphilis in cerebrospinal fluid (CSF).