Influence of sodium fluoride and caffeine on the concentration of fluoride ions, glucose, and urea in blood serum and activity of protein metabolism enzymes in rat liver |
| |
Authors: | Ewa Birkner Ewa Grucka-Mamczar Jolanta Zalejska-Fiolka Dariusz Chlubek Słwomir Kasperczyk Barbara Stawiarska-Pięta Urszula Błaszczyk |
| |
Institution: | (1) Department of Biochemistry in Zabrze, Silesian University of Medicine in Katowice, Poland;(2) Department of Biochemistry and Chemistry, Pomeranian Medical University in Szczecin, Poland;(3) Department of Pathology in Sosnowiec, Silesian University of Medicine in Katowice, Poland |
| |
Abstract: | The aim of the study was examining the effect of fluoride ions and caffeine administration on glucose and urea concentration
in blood serum and the activity of protein metabolism enzymes and selected enzymes of the urea cycle in rat liver. The study
was carried out using 18 male Sprague-Daowley rats (4.5 mo old). Rats were divided into three groups. Group I received distilled
water ad libitum. Group II received 4.9 mg F−/kg body mass/d of sodium fluoride in the water, and group III received sodium fluoride (in the above-mentioned dose) and
3 mg/kg body mass/d of caffeine in the water. After 50 d, the rats were anesthetized with thiopental and fluoride ions, glucose,
and urea concentration in blood serum were determined. Also determined were the activities of aspartate aminotransferase,
alanine aminotransferase glutamate dehydrogenase, ornithine carbamoylotransferase and arginase in liver homogenates. Liver
was taken for pathomorphological examinations. The applied doses of F− (4.9 mg/kg body mass/d) and F−+ caffeine (4.9 mg F−/kg body mass/d+3 mg caffeine/kg body mass/d) resulted in a statistically significant increase of fluoride ion concentration
in blood serum, a slight increase of the glucose concentration, and no changes in the concentration of urea in blood serum.
This might testify to the absence of kidney lesions for the applied concentrations of F−. No change in the functioning of hepatocytes was observed; however, slight disturbances have been noted in the functioning
of the liver, connected with the activation of urea cycle, increase of arginase activity, and accumulation of F− in this organ. There was no observed significant influence of caffeine supplementation on the obtained results. |
| |
Keywords: | Fluoride ion caffeine rat enzymes of urea cycles protein metabolism enzymes |
本文献已被 PubMed SpringerLink 等数据库收录! |
|