[Myocardial protective effect of L-carnitine in cardioplegia solution on patients undergoing heart valve replacement operation].

Objective: To investigate the myocardial protective effect of L-carnitine as an ingredient of cardiac arresting solution in the process of heart valve replacement operation.

Methods: 69 cases undergoing heart valve replacement with cardiopulmonary bypass (CPB), 47 males and 22 females, aged 48.17 +/- 14.

[Tear film function in non-insulin dependent diabetics].

Objective: To investigate whether diabetes mellitus is correlated with tear film dysfunction.

Methods: In 100 non-insulin dependent diabetic cases (200 eyes) and 80 non-diabetic controls, the tear break-up time was determined, and the staining with fluorescein sodium on the cornea and conjunctival impression cytology were performed.

Results: When compared with the healthy control group, the diabetic group showed decreased tear film break up time (u = 12.