@article {872,
	title = {Lipoprotein subclass and particle size differences in Afro-Caribbeans, African Americans, and white Americans: associations with hepatic lipase gene variation.},
	journal = {Metabolism},
	volume = {55},
	year = {2006},
	month = {2006 Jan},
	pages = {96-102},
	abstract = {<p>Despite a higher prevalence of coronary heart disease risk factors, men of African origin have less coronary atherosclerosis, as measured by coronary calcification, than whites. In part, this is thought to be because of the less atherogenic lipoprotein profile observed in men of African origin, characterized by lower triglycerides and higher high-density lipoprotein (HDL) cholesterol. We hypothesized that the -514C>T polymorphism in the hepatic lipase gene (LIPC) plays a significant role in determining a less atherogenic lipoprotein profile observed in men of African origin. Previously conducted studies of the LIPC -514C>T polymorphism in African Americans may have been confounded by a higher level of European admixture; in addition, the results from these studies do not necessarily apply to other African populations because gene-environment interactions may differ. Thus, we compared nuclear magnetic resonance spectroscopy-measured lipoprotein subclass patterns and LIPC -514C>T genotypes in population-based samples of older white American (n = 532) and African American (n = 97) men from the Cardiovascular Health Study to those among older, less admixed, Afro-Caribbean men (n = 205) from the Tobago Health Study. Men of African origin had a more favorable lipoprotein profile than whites. In addition, levels of low-density lipoprotein cholesterol, total cholesterol, and triglyceride, and large and small very low-density lipoprotein, small low-density lipoprotein, as well as very low-density lipoprotein particle size, were remarkably lower in Afro-Caribbean men than in either African American or white men. The frequency of the LIPC -514T allele was much higher in Afro-Caribbeans (0.57) and in African Americans (0.49) than in whites (0.20). The -514T allele in both populations of African origin, but not in whites, was associated with elevated large HDL and greater HDL size. Our findings indicate that the higher frequency of the LIPC -514T allele found in men of African origin living in different environments significantly contributes to the more favorable distribution of HDL subclasses compared with whites.</p>},
	keywords = {Adult, African Americans, Age Factors, Aged, Alleles, Body Mass Index, Cardiovascular Diseases, Caribbean Region, Cohort Studies, DNA, European Continental Ancestry Group, Gene Frequency, Genetic Variation, Humans, Lipase, Lipoproteins, Lipoproteins, HDL, Lipoproteins, LDL, Liver, Longitudinal Studies, Male, Middle Aged, Particle Size, Trinidad and Tobago, United States},
	issn = {0026-0495},
	doi = {10.1016/j.metabol.2005.07.011},
	author = {Miljkovic-Gacic, Iva and Bunker, Clareann H and Ferrell, Robert E and Kammerer, Candace M and Evans, Rhobert W and Patrick, Alan L and Kuller, Lewis H}
}
@article {1367,
	title = {Markers of cholesterol metabolism in the brain show stronger associations with cerebrovascular disease than Alzheimer{\textquoteright}s disease.},
	journal = {J Alzheimers Dis},
	volume = {30},
	year = {2012},
	month = {2012},
	pages = {53-61},
	abstract = {<p>Cholesterol metabolism is believed to play a role in the development of Alzheimer{\textquoteright}s disease (AD). Oxysterol metabolites of cholesterol, 24S-hydroxycholesterol (24-OHC, a brain-derived oxysterol) and 27-hydroxycholesterol (27-OHC, a peripherally derived oxysterol) cross the blood brain barrier and have been associated with AD. We investigated whether oxysterols were associated with markers of cerebrovascular disease prior to the onset of cognitive impairment. Oxysterols were quantified in 105 participants (average age: 80 {\textpm} 4 years) from the Pittsburgh Cardiovascular Health Study Cognition Study who remained cognitively normal at blood draw in 2002, had MRI in 1992 and 1998, and annual cognitive assessment for incident AD and mild cognitive impairment made by consensus conference between 1998 and 2010. Higher plasma levels of 24-OHC were associated with age, gender, the presence of high grade white matter hyperintensities, and brain infarcts on prior MRI. Participants with higher plasma 24-OHC and a greater ratio of 24-OHC/27-OHC were also more likely to develop incident cognitive impairment over 8 years of follow-up. Higher levels of 24-OHC suggest increased cholesterol metabolism occurring in the brains of participants with cerebrovascular disease prior to the onset of cognitive impairment. Measurement of oxysterols may provide information about cholesterol metabolism and brain disease over the cognitive impairment process.</p>},
	keywords = {Age Factors, Aged, Aged, 80 and over, Alzheimer Disease, Apolipoprotein E4, Brain, Cerebrovascular Disorders, Cognition Disorders, Cohort Studies, Female, Humans, Hydroxycholesterols, Magnetic Resonance Imaging, Male, Retrospective Studies},
	issn = {1875-8908},
	doi = {10.3233/JAD-2012-111460},
	author = {Hughes, Timothy M and Kuller, Lewis H and Lopez, Oscar L and Becker, James T and Evans, Rhobert W and Sutton-Tyrrell, Kim and Rosano, Caterina}
}
