Small Dense Low-Density Lipoprotein Cholesterol is a Potential Marker for Predicting Laser Treatment for Retinopathy in Diabetic Patients

Atsuko Nakayama, Hiroyuki Morita, Tatsuyuki Sato, Takuya Kawahara, Norifumi Takeda, Satoshi Kato, Hiroshi Itoh, Issei Komuro

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Aim: We explored the superiority of small dense low-density lipoprotein cholesterol (sdLDL-C) as a marker for predicting not only the occurrence of cardiovascular (CV) events but also the need for laser treatment in patients with hypercholesterolemia and diabetic retinopathy. Methods: We performed a sub-analysis of the intEnsive statin therapy for hyper-cholesteroleMic Patients with diAbetic retinopaTHY (EMPATHY) study (n =5042), in which patients were assigned randomly to intensive or standard statin therapy targeting low-density lipoprotein cholesterol <70 mg/dl or 100-120 mg/dl. Using the survival analysis, the risks for CV events and the need for laser treatment were evaluated according to the lipids one year after registration. Results: The patients were 63±11 years old. LDL-C and sdLDL-C levels were 98±25 and 32±14 mg/dl, respectively, one year after registration. The sdLDL-C level had a strong positive correlation with apolipoprotein B level (r =0.83 at registration). SdLDL-C was a sensitive marker for predicting CV events when comparing among the quartiles according to sdLDL-C levels (hazard ratios: HR for quartiles 1-4 were 1.0, 1.4, 1.6, and 2.5, respectively; p for trend <0.01). Also, sdLDL-C was a sensitive marker for predicting the need for laser treatment among lipids (log rank, p =0.009), especially in patients with elderly (≧65 yrs) and obesity (BMI ≧25 kg/m2). Conclusions: SdLDL-C is a sensitive target marker to predict cardiovascular events as well as the need for laser treatment in patients with hypercholesterolemia and diabetic retinopathy.

Original languageEnglish
Pages (from-to)678-691
Number of pages14
JournalJournal of atherosclerosis and thrombosis
Volume29
Issue number5
DOIs
Publication statusPublished - 2022

Keywords

  • Diabetic retinopathy
  • Small dense low-density lipoprotein cholesterol
  • Statin

ASJC Scopus subject areas

  • Internal Medicine
  • Cardiology and Cardiovascular Medicine
  • Biochemistry, medical

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