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General Comment |
NCBI Summary:
Carboxypeptidases are enzymes that hydrolyze C-terminal peptide bonds. The carboxypeptidase family includes metallo-, serine, and cysteine carboxypeptidases. According to their substrate specificity, these enzymes are referred to as carboxypeptidase A (cleaving aliphatic residues) or carboxypeptidase B (cleaving basic amino residues). The protein encoded by this gene is activated by trypsin and acts on carboxypeptidase B substrates. After thrombin activation, the mature protein downregulates fibrinolysis. Polymorphisms have been described for this gene and its promoter region. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jun 2013]
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Comment |
Increased plasma thrombin-activatable fibrinolysis inhibitor levels in young obese women with polycystic ovary syndrome. Adali E et al. (2010) To evaluate carotid intima-media thickness and thrombin-activatable fibrinolysis inhibitor levels in young women with polycystic ovary syndrome (PCOS) and age-matched healthy controls, and to investigate their relationship with each other and with clinical, metabolic, and hormonal parameters. Clinical study. University hospital. Fifty young women with PCOS (overweight or obese [n = 24] and nonobese [n = 26]) and 25 age-matched healthy controls. History and physical examination, peripheral venous blood sampling, carotid ultrasonography. Plasma thrombin-activatable fibrinolysis inhibitor, serum FSH, LH, DHEAS, total T, E(2), total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglyceride, insulin resistance defined by the homeostasis model assessment insulin resistance index, and carotid intima-media thickness. Plasma thrombin-activatable fibrinolysis inhibitor levels in the overweight or obese PCOS group were significantly higher than those in the nonobese PCOS and control groups. Carotid intima-media thickness did not significantly differ between the groups. Obesity and insulin resistance were associated positively with plasma thrombin-activatable fibrinolysis inhibitor levels, but there was no association between carotid intima-media thickness and thrombin-activatable fibrinolysis inhibitor. Young overweight or obese women with PCOS have increased plasma thrombin-activatable fibrinolysis inhibitor levels. Impaired fibrinolysis may be responsible for the increased risk of cardiovascular diseases in women with PCOS.//////////////////
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