Serum vitamin A, beta-carntene and lgG, IgA, IgM and T-lymphocyte Mastogenesis were measured in lung cancer patients, nonmalignant lung, disease and healthy controls matched lor age, sex and smoking. Mean serum vitamin A of lung cancer (except 5 adenocarcinoma) was significantly lower than that of healthy controls and non-malignant lung disease. Beta-caroiene levels were within the normal range, but mean serum beta-carotene concentration oi lung cancer patients was 24.7% lower, IgA of lung career and non-malignant lung disease patients was significantly higher, IgM and the rate of T-lymphocy te, blastogenesis of patients with lung cancer were lower than that of healthy controls, respectively. Serum IgG was not significant in 3 groups. An inverse relation, between serum vitamin A and IgM of hcalthy controls and arelation between serum vitamin A and IgG of lung cancer patients were observed. These data demonstrate an influence of vitamin A on immune function in lung cancer patients.

This paper was designed to study the effects of cellulose, pectin and ag-ar at 10% level on the concentration of serum total cholesterol (TC), trigly-ceride (TG) and high density lipoprotein cholesterol (HDL-C) in rats. Male adult Wistar rats were randomly divided into 5 groups and fed on basal diet, hypercholesterolemic diet (control diet) and 3 test diets (contain 10% cellulose, pectin or agar respectively) for 6 weeks. The results showed that all three fibrous diets were significantly lowered serum TC (P