Abstract:
BACKGROUND:Pancreas transplantation (PTX) improves lipids in patients with type 1 diabetes mellitus. However, there are patients who have persistent abnormal lipids or develop new hyperlipidemia despite PTX. One factor that may influence the lipid profile is apolipoprotein E (Apo E) genotype. Apo E polymorphism, particularly E2 and E4 alleles, increases the risk of dyslipidemia. Apo E2 has also been found to increase risk of diabetic nephropathy and so may be more prevalent in PTX candidates. METHODS:This study evaluated fasting-lipid profiles in type 1 diabetes patients who were pancreas transplant candidates to prospectively evaluate the impact of Apo E genotype on dyslipidemia before and after PTX. RESULTS:Presence of one or more E4 alleles resulted in higher triglycerides ( =0.0446), lower HDL ( =0.0247), and a higher cholesterol-to-HDL (C/H) ratio ( =0.0405) before PTX when compared with those with E3/3 genotype. After PTX, lipids improved so there was no longer a difference in fasting lipids between patients with an E4 allele and E3/3 genotype. Presence of an E2 allele had no significant impact on fasting lipids before or after PTX. CONCLUSIONS:Presence of an Apo E4 allele worsened HDL, triglycerides, and C/H ratio before PTX compared with those with E3/3 genotype, whereas the presence of an Apo E2 allele had no significant effect on lipids before or after PTX. Thus, Apo E4 has a larger impact than Apo E2 on fasting-lipid profile in PTX candidates, and Apo E gene polymorphism does not worsen lipid dyslipidemia after PTX, despite introduction of immunosuppressant medications known to cause dyslipidemia.
journal_name
Transplantationjournal_title
Transplantationauthors
Balakrishnan S,Colling C,Burkman T,Erickson J,Lyden E,Maheshwari H,Mack-Shipman L,Lane J,Larsen Jdoi
10.1097/00007890-200210150-00013subject
Has Abstractpub_date
2002-10-15 00:00:00pages
974-7issue
7eissn
0041-1337issn
1534-6080journal_volume
74pub_type
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