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Adenosine deaminase activity in typhoid fever
1Department of Pediatrics, Banaras Hindu University, Varanas.
Indian Pediatrics
|November 1, 1994
Summary
Serum adenosine deaminase (ADA) activity is elevated in typhoid fever patients, particularly in the first week of illness. This enzyme level may indicate immunity and prognosis, especially in complicated cases.
Area of Science:
- Immunology
- Biochemistry
- Infectious Diseases
Background:
- Typhoid fever is a significant global health concern.
- Adenosine deaminase (ADA) is an enzyme involved in immune function.
- Understanding immune markers in typhoid fever is crucial for patient management.
Purpose of the Study:
- To investigate serum adenosine deaminase (ADA) activity in patients with typhoid fever.
- To correlate ADA activity with disease severity and clinical outcomes.
- To assess the potential of ADA as an indicator of immunity and prognosis in typhoid fever.
Main Methods:
- Serum ADA activity was measured in 41 typhoid fever patients and 15 healthy controls.
- Enzyme activity levels were compared between patient groups and controls.
- Correlation analysis was performed between ADA activity and lymphocyte percentage.
Main Results:
- Mean serum ADA activity was significantly higher in typhoid fever patients versus controls (p < 0.001).
- Peak ADA activity occurred during the first week of illness.
- Complicated typhoid fever cases showed lower initial ADA levels, with a subsequent rise during recovery.
- A significant positive correlation was observed between serum ADA activity and lymphocyte percentage (r = 0.4245, p < 0.001).
Conclusions:
- Elevated serum ADA activity is a key indicator in typhoid fever.
- ADA activity reflects immune response and holds prognostic value in typhoid fever patients.
- Monitoring ADA levels may aid in assessing disease progression and patient recovery.

