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Increased collagen and fluid content of mouse kidneys at 9 months after single or fractionated X radiation

Journal Article · · Radiat. Res.; (United States)
DOI:https://doi.org/10.2307/3576456· OSTI ID:6599333
Mouse kidneys have been analyzed at sacrifice, 9 months after single-dose and fractionated irradiation, using wet and dry weight, a biochemical determination of hydroxyproline, and quantitation of dilated renal tubules in histological preparations. Dose-response curves have been constructed to determine the sensitivity and precision of the assays and to study the influence of dose fractionation on a variety of radiation responses of the kidney. There was a marked loss of kidney weight, measured either wet or dry, with maximum changes from control values by factors of 3 and 5, respectively. The wet:dry weight ratio increased with X-ray dose, indicating that relative fluid content was increased even 9 months after irradiation. Total collagen content per kidney, determined by a hydroxyproline assay, showed a less marked dose dependence, with a maximum increase of a factor of 1.4. However, hydroxyproline per dry weight increased by a factor of 7, and this ratio proved to be the most sensitive and precise measure of radiation damage.
Research Organization:
Mount Vernon Hospital, Northwood, England
OSTI ID:
6599333
Journal Information:
Radiat. Res.; (United States), Journal Name: Radiat. Res.; (United States) Vol. 99:1; ISSN RAREA
Country of Publication:
United States
Language:
English