Quantification of carbamylated LDL in human sera by a new sandwich ELISA.

@article{Apostolov2005QuantificationOC,
  title={Quantification of carbamylated LDL in human sera by a new sandwich ELISA.},
  author={Eugene O. Apostolov and Sudhir V. Shah and Ercan Ok and Alexei G. Basnakian},
  journal={Clinical chemistry},
  year={2005},
  volume={51 4},
  pages={
          719-28
        }
}
BACKGROUND We previously suggested that increased carbamylated LDL (cLDL), a product of nonenzymatic modification of LDL in human serum by urea-derived cyanate, may cause cardiovascular complications in patients with chronic renal insufficiency. An assay for precise measurement of cLDL in serum was not previously available. METHODS Polyclonal antibodies against human cLDL and nonmodified, native LDL (nLDL) were raised in rabbits and extensively purified by affinity chromatography. New… 
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Carbamylated Low-Density Lipoproteins Induce a Prothrombotic State Via LOX-1: Impact on Arterial Thrombus Formation In Vivo.
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References

SHOWING 1-10 OF 60 REFERENCES
Decreased clearance of uraemic and mildly carbamylated low‐density lipoprotein
TLDR
Both the uraemic‐LDL and minimally carbamylated LDL had a decreased clearance in vivo, which may contribute to the accelerated atherosclerosis in uraemia patients.
Determination of carbamylated hemoglobin by high-performance liquid chromatography.
TLDR
CarHb provides a urea-derived index of chronic uremia, derived from the spontaneous dissociation of urea, based on the quantification of valine hydantoin formed from the released NH2-terminal carbamyl valine residue after acid hydrolysis of hemoglobin.
Sensitive detection of oxidatively modified low density lipoprotein using a monoclonal antibody.
TLDR
It is suggested that LDL in human plasma is oxidatively modified under certain conditions and this method for measurement of OxLDL could be used to study the relationship between in vivo oxidation reaction and various pathological conditions.
Carbamylation-induced alterations in low-density lipoprotein metabolism.
TLDR
Providing that carbamylation of LDL could also occur in vivo resulting in similar alterations of the LDL binding to the LDL B/E receptors, as observed in the present study, the uremia-related accelerated atherosclerosis could have one additional mechanistic explanation.
Carbamylated hemoglobin and carbamylated plasma protein in hemodialyzed patients.
TLDR
Data do show that CHb and CTP are positively associated and reflect the degree of urea exposure in the blood, but their usefulness for patients on maintenance hemodialyzed patients is not clear.
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