Penetration of radionuclides across the skin: Rat age dependent promethium permeation through skin in vitro
| Autor: | V. Koprda, A. Bujnová, M. Harangozó, Z. Kassai, P. Bendová, Katarína Bauerová, A. Kassai |
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| Rok vydání: | 2003 |
| Předmět: |
Radionuclide
Chromatography integumentary system Chemistry Health Toxicology and Mutagenesis Public Health Environmental and Occupational Health chemistry.chemical_element Age dependent Penetration (firestop) Permeation Pollution In vitro Analytical Chemistry Promethium Animal model Nuclear Energy and Engineering Radiology Nuclear Medicine and imaging Spectroscopy Animal skin |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 258:669-672 |
| ISSN: | 0236-5731 |
| DOI: | 10.1023/b:jrnc.0000011767.30604.96 |
| Popis: | The composition and the permeation properties of the skin are dependent on age. In the animal models for permation studies, age affects the mechanical as well as the permeation properties significantly. The time dependence of permeation of 147Pm3+ from aqueous solution was established by the animal skin model and the age dependence of promethium permeation through the skin was examined. The aim was to find the optimum rat skin age model for radionuclide permeation studies and to assess the relative importance of the main permeation pathways: transepidermal and transfollicular permeation. The skin from 5-day-old rats (5DR) was found to represent the optimum animal model to study transepidermal permeation of ions. The skin from 9-day-old rats (9DR) was selected to study transfollicular permeation of ions. Comparison of the permeated amounts of promethium through the skin without hairs (3 DR to 6 DR) and with hairs (7DR to 12DR) showed that the additional permation mode via follicles significantly contributed to the permeation rate and extent. |
| Databáze: | OpenAIRE |
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