Effects of exercise training on serum lipids and accumulation of triacylglycerols in rat liver

Effects of exercise training on serum lipids and accumulation of triacylglycerols in rat liver

366 ANTIPYRINE, AMINOPYRINE AND SE-BILIRUBIN AS PROGNOSTIC INDICES OF F I V E Y E A R S U R V I V A L IN L I V E R C I R R H O S I S . B. R a s m u s...

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ANTIPYRINE, AMINOPYRINE AND SE-BILIRUBIN AS PROGNOSTIC INDICES OF F I V E Y E A R S U R V I V A L IN L I V E R C I R R H O S I S . B. R a s m u s s e n , M. D ~ s s i n g , H.E. P o u l s e n ~ N. T y g s t r u p . M e d i c a l d e p a r t m e n t A, R i g s h o s p i t a l e t , Copenhagen, Denmark.

T h e v a l u e of a n t i p y r i n e c l e a r a n c e (APC), 2hr a m i n o p y r i n e b r e a t h test (ABT), and c o n v e n t i o n a l b l o o d b i o c h e m i s t r y w a s d e t e r m i n e d in 44 p a t i e n t s w i t h h e p a t i c c i r r h o s i s . T w e l v e p a t i e n t s had p r i m a r y b i l i a r y c i r r h o s i s , 32 h a d a l c o h o l i c c i r r h o s i s . The p a t i e n t s w e r e e x a m i n e d c o n s e c u t i v e l y a f t e r adm i s s i o n to the d e p a r t m e n t . F i v e y e a r s l a t e r 14 p a t i e n t s had died, 4 w i t h p r i m a r y b l l i a r y c l r r h o s i s , i0 w i t h a l c o h o l i c c i r r h o s i s . D a t a w e r e a n a l y s e d by C o x ' s m o d e l for p r o p o r t i o n a l hazards. In o r d e r to r e d u c e the i n f l u e n c e of a f e w h i g h v a l u e s of s e - b i l l r u b i n (B), a l k a l i n e phosphatases (ALK) and a l a n i n e a m i n o t r a n s f e r a s e (ALA) the l o g a l i t h m of t h e s e v a r i a b l e s w a s used. U s i n g e a c h s i n g l e v a r i a b l e as a c o v a r i a t e the liver f u n c t i o n t e s t s w i t h s i g n i f i c a n t p r o g n o s t i c v a l u e w e r e B, APC, A B T and prothrombin index (PP), and t h o s e w i t h o u t s i g n i f i c a n t p r o g n o s t i c v a l u e w e r e A L A and ALK. F u r t h e r a n a l y s i s s h o w e d t h a t a m o d e l c o n t a i n i n g B and APC as c o v a r i a t e s had s i g n i f i c a n t p r o g n o s t i c value. T h e c o r r e l a t i o n (r) b e t w e e n B and A P C w a s 0.48. We c o n c l u d e t h a t s e - b i l l r u b l n has s i g n i f i c a n t p r o g n o s t i c v a l u e and t h a t f u r t h e r p r o g n o s t i c i n f o r m a t i o n can be o b t a i n e d by e v a l u a t i n g antipyrine clearance.

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EFFECTS OF EXERCISE TRAINING ON SERUM LIPIDS AND ACCUMULATION OF TRIACYLGLYCEROLS IN RAT LIVER A. Riutto, J. Vuori*, V. Vihko Research Institute for Physical Activity and Health, University Campus, SF-40700 Jyv~skyl~ and Department of Cell Biology, University of Jyv~skyl~, SF-ZK)IOO Jyv~L~kyl~ and *Sports Clinic of the Deaconess Institute of Oulu, SF-90100 Oulu, Finland

Our studies on mice have shown that i) during 8 h rtmning triacylglycerols (TG) accumulate in the hepatocytes in proportion to thelength of the exertion, and that 2) prior running training decreases the exertion-induced TG accumulation, which does not occur after i0 d training. In this study we compared liver TG content and serum lipid levels in prior-trained exhausted and in sedentary exhausted male Wistar rats, aged 4 months. Twelve rats were subjected to daily swimming training 37-39 times (74-?9 h). Six of the trained and six of the sedentary rats were made to run on a motor-driven treadmill at 20 m/rain with 6 ° uphill tracks until exhausted. Training did not affected liver TG. Exhaustion increased liver TG by i07 % in the controls (p <0.05) but not in the trained rats. Training and/or exhaustion did not affect S-HDL-cholesterol, S-f~- or S-pre-f3-1ipoproteins. Exhaustion decreased S - ~ lipoproteins in the control rats (p< 0.01), only. Post-exercise S-FFA and S-f~-hydroxybutyrate concentrations were increased in the control and in the trained groups (p <0.01). A slight training effect (a decrease) occurred in the post-exercise S-FFA (p < 0.05). Training decreased S-cholesterol and S-TG (p <0.05), while exhaustion decreased S-TG in the trained group (p < 0.05), only. The results show that swimming as well as running training prevents exercise-induced fatty liver and has a decreasing effect on S-FFA, S-TG and S-cholesterol in rats.

$189