[Vitamin A and metabolic disorders of calcium and phosphorus in patients on a long-term dialysis program].
The aim of the present work was to reveal the relationship between vitamin A serum levels and some indicators of metabolic calcium and phosphorus disorders in patients in a long-term dialyzation programme. Thirty-six patients in a long-term dialyzation programme were divided into three groups. Group A comprised 11 patients who were treated for 3-9 months but without specific treatment, group B was formed by 10 patients treated for 2-5 years who were given calcium carbonate, 3 g/24 h, by the oral route for a period of six months and group C which comprised 15 patients treated for 3-10 years who were given 1 alpha, 25-dihydroxycholecalciferol (Rocaltrol), 0.25 micrograms/24 h for a period of six months. At the end of the investigation a significant rise of total calcium and serum Ca2+ occurred in all three groups of patients an a significant decrease of increased value of phosphorus, C-PTH and vitamin A in serum in groups B and C. In group A which was without treatment there was a significant increase of serum C-PTH and vitamin A after six months. The concentration of retinyl esters in serum was within the reference range of there were undetectable values throughout the investigation in all patients. A direct relationship was found between total calcium and vitamin A, alkaline phosphatase and C-PTH in serum in all 36 patients at the onset of the dialyzation programme. Moreover there was a direct relationship between C-PTH and vitamin A in groups, A, B and C at the onset of the investigation and in groups and vitamin C at the end of the investigation.(ABSTRACT TRUNCATED AT 250 WORDS)
Mydlík
M
M
IV. interná klinika, Fakultná nemocnica s poliklinikou, Kosice.
Derzsiová
K
K
Machánová
I
I
Brátová
M
M
D002117:Calcitriol / Q000627:therapeutic use; D002119:Calcium Carbonate / Q000627:therapeutic use; D002128:Calcium Metabolism Disorders / Q000097:blood* / Q000188:drug therapy / Q000209:etiology; D006801:Humans; D010760:Phosphorus Metabolism Disorders / Q000097:blood* / Q000209:etiology; D006435:Renal Dialysis / Q000009:adverse effects*; D014801:Vitamin A / Q000097:blood*
D014801:Vitamin A; D002117:Calcitriol; D002119:Calcium Carbonate
Vitamín A a metabolické poruchy vápnika a fosforu u chorych v dlhodobom dialyzacnom programe.