4.7 Article

Hemodialysis Effect on the Composition of the Eye Fluid of Cataract Patients

Journal

JOURNAL OF CLINICAL MEDICINE
Volume 10, Issue 23, Pages -

Publisher

MDPI
DOI: 10.3390/jcm10235485

Keywords

hemodialysis; aqueous humor; trace elements; cataract; ICP-MS

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The study found increased levels of manganese and mercury, while decreased levels of vanadium and zinc in the eye fluid of dialysis patients. The ratios of Hg/Zn and Hg/Se significantly increased in the study group compared to the control, indicating the need for zinc and selenium supplementation to eliminate the toxicity caused by mercury. Lower levels of vanadium in dialysis patients may have a positive effect on maintaining calcium and phosphorus homeostasis.
Numerous reports have proven that dialysis patients experience disturbances in the levels of elements in biological fluids. Disturbances in the homeostasis of essential elements or the appearance of highly toxic elements are serious problems also in clinical ophthalmology. The purpose of this study was to investigate the influence of hemodialysis (HD) on the elemental composition of anterior chamber aqueous humor (AH) in patients undergoing cataract surgery. The study involved 22 patients. The control group enrolled 16 patients (age 75.68 +/- 9.67, female 54.55%, male 45.45%) with cataract and normal kidney function (control), and the second group included six patients (age 70.33 +/- 12.74, female 33.33%, male 66.67%) with cataract undergoing HD treatment. The elements quantification was established using an inductively coupled plasma optical emission spectrometer (ICP-MS). In the eye fluid of dialysis patients, there were increased levels of manganese (Mn) and mercury (Hg) and decreased levels of vanadium (V) and zinc (Zn). In addition, a statistically significant increase in the Hg/Zn and Hg/selenium (Se) ratios and a lowering of the iron (Fe)/Mn ratio were observed in the studied group in comparison to the control. The obtained results indicated the need for Zn and Se supplementation in order to eliminate the hazards caused by Hg toxicity. A lower level of V in the eye fluid of dialysis patients may have a positive effect on maintaining a calcium and phosphorus homeostasis. Our study gives a deep insight into changes of elements concentrations in AH induced by HD.

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