Navigation Links
Antibody responses in patients with Lyme arthritis

Lyme disease in the U.S. is caused by a form of bacteria, the spirochete Borrelia burgdorferi, infecting humans by tick bites. It typically begins with a bulls-eye skin rash, accompanied by fever, muscle aches, or other flu-like symptoms. If diagnosed early, Lyme can be treated successfully within a month with either oral or intravenous antibiotics. Nearly 60 percent of patients who do not receive antibiotic therapy early in the illness develop intermittent or persistent arthritis, particularly affecting the knees. Moreover, a small percentage of Lyme patients who do receive antibiotic therapy suffer from persistent arthritis for months or even several years after 2-3 months of oral and intravenous antibiotic therapy. This confounding condition has been termed antibiotic-refractory, or slowly resolving, Lyme arthritis.

To gain insights into the survival of spirochetes following antibiotic therapy, researchers at the Center for Immunology and Inflammatory Diseases at Massachusetts General Hospital, Harvard Medical School, and the National Center for Infectious Diseases at the Centers for Disease Control and Prevention teamed up to study antibody responses to Borrelia burgdorferi in patients with antibiotic-refractory or antibiotic-responsive Lyme arthritis. Presented in the December 2007 issue of Arthritis & Rheumatism (, their findings indicate that joint inflammation persists in patients with antibiotic-refractory Lyme arthritis after the disease-spreading spirochetes have been killed.

To compare antibody responses and determine their effect on Lyme arthritis, the team tested at least 3 blood serum samples each from 41 patients with antibiotic-refractory arthritis, 23 patients with antibiotic-responsive arthritis, and 10 non-antibiotic-treated controls arthritis patients who had contracted Lyme disease during the late 1970s before the cause of the disease was known. Samples were obtained during the period of arthritis and sometimes after several months of remission for all patient groups. The patients with antibiotic-refractory and antibiotic-responsive arthritis had a similar age range, sex distribution, and duration of arthritis prior to antibiotic therapy.

All samples were tested for IgG reactivity with Borrelia burgdorferi bacteria and 4 outer surface lipoproteins of the spirochete. Among non-antibiotic-treated patients, antibody titers to Borrelia burgdorferi remained high throughout a prolonged period of persistent arthritis, 2 to 5 years. In contrast, in patients with antibiotic-responsive arthritis, the level of antibody titers to Borrelia burgdorferi and most outer-surface proteins remained steady or decreased within the first 3 months of starting antibiotic therapy. Consistent with this finding, these patients usually experienced relief from joint swelling during a 1-month course of oral antibiotics. In patients afflicted with antibiotic-refractory arthritis, the level of antibody titers to Borrelia burgdorferi and most outer-surface antigens increased slightly during the first 1 to 3 months of treatment. These patients suffered from persistent joint swelling for a median duration of 10 months, despite 2 to 3 months of oral or intravenous antibiotics. However, by 4 to 6 months after starting antibiotic therapy, antibody titers declined to similar levels in both antibiotic-treated groups, regardless of their differences in arthritis symptoms.

In Lyme disease, there is a great need for a test that could be used in clinical practice as a marker for spirochetal eradication, observes Dr. Allen C. Steere, the senior author of the study. Yet, as he acknowledges, ridding the body of the Borrelia burgdorferi bacteria and its surface antigens does not always bring relief from arthritis. Increasing antibody titers in patients usually suggested the presence of live spirochetes, whereas declining titers suggested that they had been killed, he notes. Thus, patients with Lyme arthritis who have a sustained, gradual decline in antibody reactivity probably have the nearly complete or total eradication of spirochetes from the joint as a result of antibiotic therapy, even if joint inflammation persists after the period of infection.


Contact: Amy Molnar

Related medicine news :

1. Medimmune announces phase 2 safety data for anti-RSV antibody and national RSV surveillance results
2. Antibody leads to repair of myelin sheath in lab study of multiple sclerosis and related disorders
3. Antibody Helps Repair MS Nerve Damage
4. Ono and Medarex Announce Allowance of Investigational New Drug Application for Fully Human Anti-PD1 Antibody
5. ThromboGenics Begins Preclinical Development of Anti-VPAC Antibody for Thrombocytopenia
6. NIAID funds $51M contract to create comprehensive model of immune responses
7. Fluctuating eye pressure associated with visual field deterioration in glaucoma patients
8. Comparison of obstetric outcomes between on-call and patients own obstetricians
9. Vision restoration therapy shown to improve brain activity in brain injured patients
10. Diabetes appears to increase risk of death for patients with acute coronary syndromes
11. Ambulatory oxygen rarely a benefit in COPD patients without resting hypoxemia
Post Your Comments:
(Date:10/13/2017)... , ... October 13, 2017 , ... “The Journey: From ... every danger possible to save lost souls in the Philippines. “The Journey: From the ... is a dedicated teacher of the Bible. She has taught all ages and currently ...
(Date:10/12/2017)... ... October 12, 2017 , ... Planet Fitness, one of the ... today its plans to open a flagship location in Covington, LA at 401 N. ... To Go store next to Office Depot in the Holiday Square shopping center. Its ...
(Date:10/12/2017)... ... October 12, 2017 , ... Asante, a nationally recognized ... have expanded their existing home health joint venture through an agreement, effective October ... a joint venture home health company with Asante, delivering clinically integrated care, for ...
(Date:10/12/2017)... ... ... Leading pediatric oncology experts at Children’s National Health System will ... the International Society of Paediatric Oncology (SIOP) Oct. 12-15. Chaired by Jeffrey ... Disorders at Children’s National, and Stephen P. Hunger, M.D., Chief of the Division ...
(Date:10/12/2017)... ... October 12, 2017 , ... ... property taxes a year. In some states—like New York, New Jersey, Massachusetts, Texas, ... many overseas retirement havens have extremely low property-tax rates, which contributes to the ...
Breaking Medicine News(10 mins):
(Date:10/10/2017)...   West Pharmaceutical Services, Inc. (NYSE: WST), ... administration, today shared the results of a study highlighting ... intradermal administration of polio vaccines. The study results were ... 2017 by Dr. Ondrej Mach , Clinical Trials ... (WHO), and recently published in the journal Vaccine. ...
(Date:10/4/2017)... OBP Medical , a leading ... today announced regulatory approval from Brazil,s ... Nacional de Vigilância Sanitária (ANVISA)) to market ... with integrated LED light source and smoke evacuation ... of a tissue pocket or cavity during surgical ...
(Date:10/2/2017)... , Oct. 2, 2017 The Rebound mobile ... the struggle to reverse the tide of prescription drug addiction. ... regulating their medicine intake and stepping down their dosage in ... to launch in December 2017; the first 100,000 people to ... more at ...
Breaking Medicine Technology: