Clinical and enzyme studies in Gaucher disease
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1Department of Pediatrics, WHO Collaborating Center in Genetics, All India Institute of Medical Sciences, New Delhi.
Objective:
To study the clinical and biochemical spectrum of Gaucher disease.
Design:
Assay of beta glucosidase enzyme in leucocytes in patients with splenomegaly, and in chorionic villi for prenatal diagnosis.
Setting:
Hospital-based.
Subjects:
Of 13 cases of Gaucher disease, aged 1-6 years, 9 were identified at Delhi and 4 at Bombay.
Results:
The enzyme beta-glucosidase was 0.65 nmol/h/mg of protein or less in all the cases in Delhi, and 2.5 nmol/h/mg of protein or less in Bombay. All cases except one belonged to type 1 (hepatosplenomegaly), while one case was of type 2 (neuronopathic). Prenatal diagnosis was carried out in one family and the fetus was found to be affected.
Conclusion:
In children with hepatosplenomegaly and increased acid phosphatase, assay of beta-glucosidase enzyme confirms the diagnosis of Gaucher disease. Diagnosis of the disease is important because enzyme replacement therapy is available and prenatal diagnosis is possible.
