Decreased salivary output in patients with Gaucher disease.
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BACKGROUND
Gaucher disease, the most common sphingolipid storage disease, results in accumulation of glucocerebroside in macrophages or "Gaucher cells". In a preliminary screening of 109 patients with type I disease, when asked specifically about dry mouth, approximately one quarter claimed to suffer from this symptom.
OBJECTIVE
To ascertain whether decreased salivary output is a feature of Gaucher disease.
METHODS
Prospective case-control study.
METHODS
Salivary output was measured in 65 adult patients and 65 healthy controls using the Saxon test with Hochberg's modification.
RESULTS
Mean salivary output was 1.91+/-1.19 g/min in the patient group vs. 2.74+/-1.17 g/min in the control group (p<0.001). This difference was greater among males. These results were not improved in the patients receiving enzyme replacement therapy, which is effective in ameliorating most Gaucher-related signs and symptoms.
CONCLUSIONS
Recent studies have implicated an association between sicca syndrome and viral hepatitis C infection, which may imply an immunological trigger for these findings, but in this specific cohort, only three patients were reactive for hepatitis C. Follow-up of patients, both untreated and receiving enzyme therapy, is needed to delineate the association with salivary hypofunction, and ascertain whether enzyme therapy may induce sicca symptoms.