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1.  Sleep quality, depression, and quality of life in elderly hemodialysis patients 
Both the incidence and the prevalence of end-stage renal disease (ESRD) in elderly patients are increasing worldwide. Elderly ESRD patients have been found to be more prone to depression than the general population. There are many studies that have addressed the relationship between sleep quality (SQ), depression, and health related quality of life (HRQoL) in ESRD patients, but previous studies have not confirmed the association in elderly hemodialysis (HD) patients. Therefore, the aim of the present study was to demonstrate this relationship in elderly HD patients.
Patients and methods
Sixty-three elderly HD patients (32 females and 31 males aged between 65 and 89 years) were included in this cross-sectional study. A modified Post-Sleep Inventory (PSI), the Medical Outcomes Study 36-item short form health survey, and the Beck Depression Inventory (BDI) were applied.
The prevalence of poor sleepers (those with a PSI total sleep score [PSI-4 score] of 4 or higher) was 71% (45/63), and the prevalence of depression was 25% (16/63). Of the 45 poor sleepers, 15 had depression, defined as a BDI score of 17 or higher. Poor sleepers had a significantly higher rate of diabetes mellitus (P = 0.03), significantly higher total BDI scores, and lower Physical Component Scale scores (ie, lower HRQoL) than good sleepers. The PSI-4 score correlated negatively with Physical Component Scale (r = −0.500, P < 0.001) and Mental Component Scale scores (r = −0.527, P < 0.001) and it correlated positively with the BDI score (r = 0.606, P < 0.001). In multivariate analysis, independent variables of PSI-4 score were BDI score (beta value [β] = 0.350, P < 0.001), Mental Component Scale score (β = −0.291, P < 0.001), and age (β = 0.114, P = 0.035).
Poor SQ is a very common issue and is associated with both depression and lower HRQoL in elderly HD patients.
PMCID: PMC3474160  PMID: 23091392
health-related quality of life; end-stage renal disease; poor sleep quality; Post-Sleep Inventory; Beck Depression Inventory
2.  Serum Uric Acid Level and Endothelial Dysfunction in Patients with Nondiabetic Chronic Kidney Disease 
American Journal of Nephrology  2011;33(4):298-304.
An elevated serum uric acid level is strongly associated with endothelial dysfunction and inflammation, both of which are common in chronic kidney disease (CKD). We hypothesized that endothelial dysfunction in subjects with CKD would correlate with uric acid levels.
Materials and Methods
We evaluated the association between serum uric acid level and ultrasonographic flow-mediated dilatation (FMD) in 263 of 486 patients with recently diagnosed CKD (stage 3–5) (48% male, age 52 ± 12 years). To minimize confounding, 233 patients were excluded because they were diabetic, had established cardiovascular complications or were taking drugs (renin-angiotensin system blockers, statins) interfering with vascular function.
Serum uric acid level was significantly increased in all stages of CKD and strongly correlated with estimated glomerular filtration rate (eGFR-MDRD); FMD was inversely associated with serum uric acid (r = −0.49, p < 0.001). The association of serum uric acid with FMD remained after adjustment for age, gender, smoking, LDL cholesterol, eGFR, high-sensitivity C-reactive protein, systolic blood pressure, proteinuria, and homeostatic model assessment index (β = −0.27, p < 0.001).
Increased serum uric acid is an independent predictor of endothelial dysfunction in subjects with CKD.
PMCID: PMC3064939  PMID: 21389694
Chronic kidney disease; Uric acid; Endothelial dysfunction
3.  A forgotten but important risk factor for severe hyponatremia: myxedema coma 
Clinics  2010;65(4):447-448.
PMCID: PMC2862668  PMID: 20454504
4.  Cefuroxime-induced lupus. 
Drug-induced lupus erythematosus (DILE) is a syndrome that shares symptoms and laboratory characteristics with idiopathic systemic lupus erythematosus. Recognition of DILE is important because it usually reverts within a few weeks after stopping the offending drug. Antibiotics are uncommonly associated with DILE, and cefuroxime has never been incriminated as a cause. We present herein the first case of DILE induced by cefuroxime. Although this is the first report of cefuroxime-induced DILE, we should be aware of this occurrence.
PMCID: PMC2575873  PMID: 17913119

Results 1-4 (4)