QCD suggests that gluons in the nucleon play an important role in so-called " the proton spin problem ". In this talk, the behavior of the polarized gluon distribution in the nucleon is discussed by using the positivity condition of distribution functions together with the unpolarized and polarized experimental data.

The dual-precipitation method for measurement of cholesterol in high-density lipoprotein subfractions HDL2 and HDL3 (Warnick et al., Clin Chem 1982;28:1574) was compared with quantification of cholesterol in HDL2 and HDL3 by zonal ultracentrifugation (Patsch et al., J Lipid Res 1974;15:356-66). For 39 plasma specimens differing widely in their HDL subfraction cholesterol concentration, the coef...

Abstract Funding Acknowledgements Type of funding sources: None. Main source(s): Ninguna Introduction The Triglyceride/HDL (Tg/HDL) ratio when > 2 is translated into the presence small, dense lipoproteins (sdLDL), which are more atherogenic and help us measure global lipid risk regardless LDL levels. There possibility measuring sdLDL directly, but it not performed in routine clinical pra...

One mechanism by which high density lipoproteins (HDLs) exert their protective effect against coronary artery disease could be related to the induction of prostacyclin (PGI(2)) release in the vessel wall. We have recently shown that HDL increases PGI(2) production in rabbit smooth muscle cells (RSMCs) and that this increase is dependent on cyclooxygenase-2 (Cox-2). Here we analyze the mechanism...