Background: Polycystic ovary syndrome (PCOS) is adisorder of hyperandrogenemia and chronic anovulation which affects 5-10% of all women. It has been reported that women with PCOS often have serum lipid level elevation. This study compares serum lipid levels in women with and without polycystic ovary syndrome. Materials and Methods: In this comparative-cross sectional study, lipid profiles (Tota...

Plasma low density lipoprotein (LDL) kinetics and their relation to plasma very low density lipoprotein (VLDL) and LDL composition were determined in patients with familial combined hyperlipidemia (FCHL) of varying lipoprotein phenotypes. In both Type II and IV subjects, LDL apolipoprotein B (apo B) synthesis was greater than normal. In Type IV, the VLDL triglyceride/apo B ratio was normal and ...

A protein band having the same migration as apolipoprotein (apo) B-48 was observed by SDS electrophoresis in the plasma very low density lipoprotein (VLDL) from 14 Type IV and three Type III hyperlipoproteinemic subjects and from six normal fasting subjects. The VLDL from five Type IV, three Type III, and one normal subject were separated into two subfractions, retained and nonretained, by immu...

For the past 5 years, investigators from many different laboratories have contributed to a greatly increased understanding of two very important lipid-carrying proteins in plasma--apo B-100 and apo B-48. Apo B-100, an extremely large protein composed of 4,536 amino acids, is synthesized by the liver and is crucial for the assembly of triglyceride-rich VLDL particles. Apo B-100 is virtually the ...

BACKGROUND Apolipoprotein (apo) E is a component of two major classes of plasma lipoproteins, apo B- (apo E-LpB) and non-apo B-containing (apo E-Lp-non-B) lipoproteins. The factors that affect total apo E in particles [lipoprotein E (LpE), apo E-Lp-non-B, and apo E-LpB], are incompletely characterized. METHODS We studied the determinants of these lipoparticles in a sample population of presum...

Apolipoprotein B-100 has a crucial structural role in the formation ofVLDL and LDL. Familial hypobetalipoproteinemia, a syndrome in which the concentration of LDL cholesterol in plasma is abnormally low, can be caused by mutations in the apo B gene that prevent the translation of a full-length apo B-100 molecule. Prior studies have revealed that truncated species of apo B [e.g., apo B-37 (1728 ...

BACKGROUND The apo B/apo A-I ratio represents the balance between atherogenic particles, rich in apo B, and the antiatherogenic ones, apo A-I rich. This study investigated the association between atherosclerotic diseases in different anatomical sites and apo B/apo A-I ratio. METHODS Lipids, lipoproteins, and apolipoproteins A-I and B were assessed in 30 subjects with coronary artery disease (...

Objective: To evaluate various lipid, lipoprotein and apolipoprotein ratios among participants with without metabolic syndrome.
 Study Design: Comparative cross-sectional study.
 Place Duration of Study: Naval Hospital, Islamabad Pakistan, from Jan 2019 to Dec 2020.
 Methodology: We selected 164 patients syndrome. Metabolic syndrome was diagnosed as per “NCEP-defined criteria”. I...