Factor Analysis for Body Mass Index Changes in Kidney Transplant Recipients.

BACKGROUND: The purpose of this study was to identify factors influencing changes in the body mass index (BMI) of kidney transplant (KT) patients and provide data for the management of the BMI of patients who have undergone KT. METHOD: The participants were 106 patients who underwent KT at a single center from August 2014 to June 2017. BMIs were compared and analyzed for 6 months and 24 months after KT, and the survey details were collected through medical records. Analysis was performed between 2 groups, one with increased BMI and the other without. Multivariate logistic regression analysis was performed to identify the factors related to an increase in BMI. RESULTS: BMI increased from 22.60 ± 2.72 kg/m2 at 6 months to 23.18 ± 3.06 kg/m2 2 years after KT. The group with increased BMI (n = 39) had more patients with higher low-density cholesterol levels at the time of KT (low-density cholesterol ≥100 mg/dL; 34 [54.0%] vs 10 [26.3]; P = .008) and without statin drug use than the other group (n = 67) (statin drug use, 48 [70.6%] vs 34 [87.2%], P = .044). Multiple logistic regression analysis showed that age >50 years (odds ratio [OR] = 2.942; 95% confidence interval [CI], 1.075-8.055; P = .036), low-density lipoprotein >100 mg/dL at KT (OR = 6.618; 95% CI, 2.225-19.682; P = 0.001), and no statin drugs (OR = 5.094; 95% CI, 1.449-17.911, P = .011) were the risk factors for an increased BMI after KT. CONCLUSIONS: After KT, to prevent an increase in the BMI, clinicians should strongly recommend the use of drugs to treat hyperlipidemia, especially in elderly patients with high low-density lipoprotein levels before KT.

Association of estrogen receptor-alpha gene polymorphisms with bone mineral density in postmenopausal Korean women.

We examined the potential associations between PvuII and XbaI polymorphisms in the first intron of the estrogen receptor alpha (ER-alpha) gene and bone mineral density (BMD) in a population-based study of 174 postmenopausal Korean women. BMD was measured at the lumbar spine (L2-L4), right femoral neck, right trochanter, and right Ward's triangle. ER-alpha gene polymorphisms were detected by PvuII and XbaI restriction endonuclease digestion of polymerase chain reaction products. Differences in BMD values between the ER-alpha genotypes were analyzed in a general linear model, with adjustments for age, height, weight, and smoking status. The following genotype frequencies were noted: PP, 14.9%; Pp, 46.0%; pp, 39.1%; XX, 3.5%; Xx, 29.3%; and xx, 67.2%. Both the femoral neck and Ward's triangle BMD values in women with the Pp genotype were significantly (P < 0.05) higher than those in women with the pp genotype. No significant effect of the XbaI genotype on BMD was found at any site. Carriers of the pX haplotype were more likely to have lower BMD values at the trochanter than noncarriers, after adjustment for potentially confounding factors. Women with the pp genotype had more previous hip or spine fractures than those with other genotypes (P = 0.05). These results suggest that the PvuII polymorphism and the ER-alpha haplotype may be associated with the BMD at several femur sites in postmenopausal Korean women.