Related Experiment Videos
Leptospiral antibodies in patients with recurrent ophthalmic involvement
Rathinamsivakumar1, S Ratnam, L Sureshbabu
1Aravind Eye Hospital, Madurai.
Abstract:
Leptospiral antibodies could be demonstrated by microscopic agglutination test in 14 of 15 (93%) patients with acute panuveitis and retinal vasculitis in a preliminary study undertaken during the postmonsoon period at Madurai in Tamilnadu, India. The predominant serogroup was Pomona followed by Autumnalis, Australis and Javanica, the titres being between 1:160 and 1:10240. Titres in the normal controls were 1:20 to 1:80 in 8 of 20 mostly to the endemic serogroup Autumnalis. The involvement of leptospires particularly Pomona as a cause of ophthalmic complications in the patients studied is likely.
Insights
Leptospiral antibodies were found in 93% of patients with acute panuveitis and retinal vasculitis. The Pomona serogroup was most common, suggesting Leptospira may cause these eye conditions.
Area of Science:
- Ophthalmology
- Infectious Diseases
- Microbiology
Background:
- Acute panuveitis and retinal vasculitis are serious eye conditions.
- Leptospirosis is a zoonotic disease caused by Leptospira bacteria.
Purpose of the Study:
- To investigate the potential role of Leptospira infection in patients with acute panuveitis and retinal vasculitis.
- To identify prevalent Leptospira serogroups associated with ophthalmic complications.
Main Methods:
- Microscopic agglutination test (MAT) was used to detect leptospiral antibodies.
- Patient serum samples were collected during the postmonsoon period in Madurai, Tamilnadu, India.
- Antibody titers were compared between patients and healthy controls.
Main Results:
- Leptospiral antibodies were detected in 14 out of 15 (93%) patients.
- The predominant serogroups identified were Pomona, Autumnalis, Australis, and Javanica.
- Antibody titers in patients ranged from 1:160 to 1:10240, significantly higher than in controls (1:20 to 1:80).
Conclusions:
- Leptospira infection, particularly serogroup Pomona, is likely implicated in the pathogenesis of acute panuveitis and retinal vasculitis.
- The findings suggest a potential link between leptospirosis and severe ocular inflammatory diseases.
- Further research is warranted to confirm the causal relationship and explore treatment strategies.