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1.
PLoS One ; 16(12): e0260671, 2021.
Article in English | MEDLINE | ID: mdl-34914719

ABSTRACT

BACKGROUND: The association between salt intake and clinical outcomes in hemodialysis patients has been controversial. This study aimed to clarify the association between salt intake and mortality in hemodialysis patients. METHOD: The present study included patients who underwent hemodialysis from June 1st 2016 to May 31st 2020. Corrected salt intake by ideal body weight was the main predictor of outcomes. Ideal body weight was calculated assuming that the ideal body mass index is 22 kg/m2 for the Japanese population. The multivariate Cox proportional hazards model was used to determine the association between corrected salt intake and mortality, adjusting for potential confounders. The outcomes considered were all-cause mortality and cumulative incidence of cardiovascular events at year 4. RESULT: A total of 492 adult patients were enrolled in the study. The mean daily salt intake and corrected salt intake at baseline were 9.5 g/day and 0.17 g/kg/day, respectively. The low corrected salt intake group (< 0.13 g/kg/day) demonstrated the highest 4-year all-cause mortality. No association was observed between corrected salt intake and the cumulative incidence of cardiovascular events. In multivariate Cox proportional hazards analysis, only the group with corrected salt intake of 0.16-0.20 g/kg/day was associated with a decreased hazard risk for all-cause death compared with the low corrected salt intake group. CONCLUSION: The present study found that a low salt intake was associated with high all-cause mortality in hemodialysis patients. Reduced long-term survival may be attributed to malnutrition resulting from excessive salt restriction.


Subject(s)
Kidney Failure, Chronic/mortality , Sodium Chloride, Dietary/analysis , Aged , Aged, 80 and over , Body Mass Index , Cardiovascular Diseases/epidemiology , Cardiovascular Diseases/etiology , Female , Humans , Kaplan-Meier Estimate , Kidney Failure, Chronic/therapy , Male , Middle Aged , Proportional Hazards Models , Renal Dialysis , Retrospective Studies , Sodium Chloride, Dietary/adverse effects
2.
Opt Express ; 18(13): 13945-50, 2010 Jun 21.
Article in English | MEDLINE | ID: mdl-20588527

ABSTRACT

A current-injected silicon-based light-emitting device was fabricated on silicon-on-insulator (SOI) by embedding Ge self-assembled quantum dots into a silicon microdisk resonator with p-i-n junction for current-injection. Room-temperature resonant electroluminescence (EL) from Ge self-assembled quantum dots in the microdisk was successfully observed under current injection, and observed EL peaks corresponding to the whispering gallery modes (WGMs) supported by the microdisk resonator were well identified by means of numerical simulations.


Subject(s)
Germanium , Luminescent Measurements/instrumentation , Optics and Photonics/instrumentation , Quantum Dots , Silicon/chemistry , Computer Simulation , Equipment Design , Microscopy, Electron, Scanning , Miniaturization/instrumentation , Temperature
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