Although several epidemiological studies have shown that hepatic low lipoprotein lipase (LPL) mRNA expression may be associated with dyslipidemia and tumor progression, it is still not known whether the liver plays an essential role in hyperlipidemia of Apc<sup>Min/+</sup> mice.
We conducted a cross-sectional study to investigate the effects of the adenosine triphosphate-binding cassette transporter 1 (ABCA1) I883M and lipoprotein lipase (LPL) HindIII polymorphisms on lipid levels in patients with hyperlipidemia.A total of 533 patients were enrolled.
Two patients with other five family members were included in this study for DNA-sequences of hyperlipidemia-related genes (such as LPL, APOC2, APOA5, LMF1, and GPIHBP1) and 43 healthy individuals and 70 HTG subjects were included for the screening of LPL gene mutations.
Hyperlipidemia was positively correlated with age, BMI, alcohol consumption, total energy and total fat intake, apoE, and microsomal triglyceride transfer protein genotypes, and negatively associated with total dietary fiber intake, apoA-I, and lipoprotein lipase genotypes.
The 495TT genotype of LPL gene HindIII polymorphism was associated with changes of HDL subclasses distribution in Chinese population with hyperlipidemia.
While type 1 hyperlipidemia is associated with lipoprotein lipase or apoCII deficiencies, the etiology of type 5 hyperlipidemia remains largely unknown.
We conclude that in the absence of LDL receptor function, increased LPL activity accelerates the catabolism of large TG-rich VLDL (possibly via the LRP pathway) and subsequently improves hyperlipidemia.
These results imply that systemic elevation of LPL expression may be potentially useful for the treatment of hyperlipidemias, obesity, and insulin resistance.
The different expression of LPL gene in tissues associated with the increased levels of insulin and TNF-alpha possibly elucidate the underlying mechanisms involving the postprandial hyperlipidemia observed in visceral obesity.
We screened the normolipidemic and hyperlipidemic apoE2 homozygotes for common variants in candidate genes involved in lipolysis-the APOA1-C3-A4 gene cluster, lipoprotein lipase, and hepatic lipase-and analyzed for associations with the expression of hyperlipidemia.
We report here the association of nephrotic syndrome and the apo epsilon 2 epsilon 2 genotype in which we observed a hyperlipidemia characterized by very low levels of lipoprotein lipase activity, chylomicronemia, high levels of plasma apo B, C III, E and lipoprotein(a), very low levels of high density lipoprotein cholesterol and concentrations of cholesterol and triglyceride that are higher than expected in all the other lipoprotein fractions.
We tested the efficacy of adenovirus-mediated gene transfer of LPL as treatment of experimental hyperlipidemias associated with apolipoprotein (apoE) deficiency (apoE-/-) and low-density lipoprotein receptor (LDLr) deficiency (LDLr-/-) in mice.
The data suggest that carriers for the LPL-N9 mutation have a mild genetic predisposition to developing hyperlipidaemia and an atherogenic lipid profile, but that this requires the presence of other genetic or environmental factors for full expression, one of which appears to be increasing obesity.
Patients with apoE3 deficiency (E2/2, E3/2, and E4/2) who manifest with hyperlipidemia have increased frequency of an Asn 291-->Ser mutation in the human LPL gene.
The measurement of LPL activity and mass allows identification of the heterozygote state for LPL deficiency, which is characterized by variable expressions of hyperlipidemia and reduced HDL cholesterol.
APOE∗3-Leiden (E3L) mice are a well-established model for diet-induced hyperlipidemia and atherosclerosis, and glucokinase<sup>+/-</sup> (GK<sup>+/-</sup>) mice are a translatable disease model for glucose control in type 2 diabetes.
Here, we combined bilateral common carotid artery stenosis (BCAS) with a hyperlipidaemia model in order to develop a mouse model of SVaD; 10- to 12-week-old apolipoprotein E (ApoE)-deficient or wild-type C57BL/6J mice were subjected to sham operation or chronic cerebral hypoperfusion with BCAS using micro-coils.
To investigate the pathological changes of the meibomian gland (MG) and ocular surface in Apolipoprotein E knockout (ApoE<sup>-/-</sup>) mice and to investigate the association of meibomian gland dysfunction (MGD) with hyperlipidemia.
Approach and Results- We designed a model system that allows for the conversion to a state of acute hyperlipidemia in adult life, so that the consequences of such a transition could be observed, through conditionally deleting APOE (apolipoprotein E) in the adult mouse.
Collectively, ApoE plays crucial roles in preserving bone mass, suggesting that targeting ApoE and its isoforms as a promising treatment candidate of both osteoporosis and hyperlipidemia.