So. F l o r i d a , Oept. o f P e d a t r i c s , Tampa, FL Plasma zinc l e v e l s have been v a r i a b l y reported a s low o r normal i n p a t i e n t s with c y s t i c f i b r o s i s (CF). Zinc i s a co-factor f o r more than 60 enzymes including t h e A6 d e s a t u r a s e enzyme, and may be required f o r t h e mobilization and t r a n s p o r t of vitamin A, reported t o be low i n p a t i e n t s with CF. Zinc is a l s o important i n immune function. For t h e s e reasons, zinc i s a p o t e n t i a l l y important mineral i n p a t i e n t s with CF. We measured zinc and v i tamin A l e v e l s i n 25 p a t i e n t s with CF (ages 5-29) and compared them t o c o n t r o l s . CF p a t i e n t s have s i g n i f i c a n t l y lower plasma zinc, 70.12 + 2.66 and vitamin A, 30.13 f 1.51, than do c o n t r o l s (94.11 2 3.21 and 47.85 f 4.41, r e s p e c t i v e l y , p10.001, p<0.001). Plasma zinc but not vitamin A l e v e l s corresponded t o t h e degree of pulmonary involvement (normal o r mildly a f f e c t e d 78.72 + 4.34, moderately t o severely a f f e c t e d 63.65 ? 1.89, p<0.001), but not t o the presence of pancreatic i n s u f f i c i e n c y . S i x p a t i e n t s were supplemented with zinc gluconate f o r 6 weeks with 3 mg/kg/day. Plasma zinc l e v e l s r o s e s i g n f i c a n t l y , although t h e r e was no obvious change observed i n t h e i r c l i n i c a l s t a t u s . Plasma copper l e v e l s , which have a r e c i p r o c a l r e l a t i o n s h i p with plasma zinc, decreased s i g n i f i c a n t l y but remained within t h e normal range. A longer period of supplementation may be required t o bring about a change i n c l i n i c a l s t a t u s . Previous c o n f l i c t i n g r e p o r t s of zinc s t a t u s i n CF may r e f l e c t heterogeneity of pulmonary involvement between groups of p a t i e n t s s t u d i e d .
TREATMENT OF AIDS ASSOCIATED LYMPHOID INTERSTITIAL
1742PNEuMoNITIs WITH INTRAVENOUS GAwGLoBuLIN AND PREDNISONE. Morris Charytan, Ben Zion Krieger, Andrew Wiznia, Larry Bernstein, Bernard Silverman, and Arye Rubinstein, Albert E i n s t e i n College of Medicine, Department of P e d i a t r i c s , Microbiology and Immunology, Bronx, New York.6 c h i l d r e n w i t h Acquired Immunodeficiency Syndrome and biopsy proven lymphoid i n t e r s t i t i a l pneumonitis were t r e a t e d on a p r o t o c o l of intravenous gammaglobulin and c o r t i c o s t e r o i d s . I n d i c a t i o n s f o r therapy were a c l i n i c a l h i s t o r y of severe and/or r e c u r r e n t episodes of r e s p i r a t o r y d i s t r e s s responsive t o intravenous a n t i b i o t i c s and hypoxemia p e r s i s t i n g a f t e r r e s o l u t i o n of t h e a c u t e i l l n e s s . Hypoxemia was defined a s a p02C70 t o r r on t h r e e determinations. Therapy consisted of an i n i t i a l period of loading w i t h intravenous gammaglobulin. Duration and dosage of loading varied w i t h t h e s e v e r i t y of t h e c l i n i c a l circumstances. C o r t i c o s ...