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1.
J Atheroscler Thromb ; 31(1): 81-89, 2024 Jan 01.
Article in English | MEDLINE | ID: mdl-37558461

ABSTRACT

AIM: A high level of serum lipoprotein(a) [Lp(a)] is associated with kidney disease development in patients with type 2 diabetes (T2DM). Recent studies have suggested that statins may affect serum levels of Lp(a). However, the statin effect is not well-defined in patients with T2DM with kidney dysfunction. This retrospective study aimed to investigate the relevance of kidney dysfunction and statin therapy to Lp(a) in patients with T2DM. METHODS: Japanese patients with T2DM (n=149, 96 men and 53 women) were divided into two groups: statin users (n=79) and non-statin users (n=70). Multiple logistic regression analyses were performed with Lp(a) as the objective variable and estimated glomerular filtration rate (eGFR), hemoglobin A1c, age, gender, and body mass index as the explanatory variables. RESULTS: Lp(a) serum levels were higher in statin users than in non-statin users (P=0.022). Multivariate regression analysis results showed an inverse correlation of eGFR to log Lp(a) in all patients (P=0.009) and in non-statin users (P=0.025), but not in statin users. In a multiple logistic regression analysis for median Lp(a), there was an inverse association between eGFR and Lp(a) level (odds ratio, 0.965; 95% confidence interval, 0.935-0.997; P=0.030) in non-statin users as well as in all participants, but not in statin users. CONCLUSIONS: The present study suggests that a high Lp(a) level in patients with T2DM, except in statin users, is significantly associated with decreased eGFR, indicating that the increased Lp(a) levels under statin therapy might diminish the relationship between Lp(a) and eGFR.


Subject(s)
Diabetes Mellitus, Type 2 , Hydroxymethylglutaryl-CoA Reductase Inhibitors , Renal Insufficiency , Male , Humans , Female , Diabetes Mellitus, Type 2/complications , Diabetes Mellitus, Type 2/drug therapy , Hydroxymethylglutaryl-CoA Reductase Inhibitors/therapeutic use , Lipoprotein(a) , Retrospective Studies , Renal Insufficiency/complications , Kidney
2.
J Nutr Sci Vitaminol (Tokyo) ; 67(6): 417-423, 2021.
Article in English | MEDLINE | ID: mdl-34980720

ABSTRACT

The association of homocysteine metabolism-related nutrients along with renal function to homocysteine levels is not well known in patients with type 2 diabetes mellitus (T2DM). We investigated the relevance of kidney function, albuminuria, and nutritional factors to serum homocysteine in T2DM patients. This cross-sectional study enrolled 149 T2DM patients (96 men and 53 postmenopausal women), and patient characteristics and laboratory data including kidney-related data [glomerular filtration rate (eGFR), urinary albumin excretion (UACR), uric acid] and metabolism parameters (hemoglobin A1c and lipids) were collected from the medical record and serum levels of vitamin B12, folic acid, zinc, homocysteine and UACR were also acquired. In total subjects, serum levels of homocysteine, vitamin B12, and folic acid were within reference intervals, but zinc levels were close to lower limits of its reference interval. A multivariate-adjusted analysis showed that gender (ß=-0.259, p<0.001), uric acid (ß=0.267, p<0.001), eGFR (ß=-0.188, p=0.001), log UACR (ß=0.190, p=0.002), log folic acid (ß=-0.259, p<0.001), log vitamin B12 (ß=-0.224, p<0.001) and zinc (ß=-0.169, p=0.006) were correlated to log homocysteine. In multiple regression analysis by gender, these correlations were found similarly in men, but neither log folic acid nor zinc showed correlations with log homocysteine in women. The present study suggests that renal function parameters and the certain nutritional factors have a possible influence on serum homocysteine, in T2DM patients including diabetes kidney disease.


Subject(s)
Diabetes Mellitus, Type 2 , Vitamin B Complex , Cross-Sectional Studies , Female , Folic Acid , Homocysteine , Humans , Male , Vitamin B 12 , Zinc
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