The effect of ionizing irradiation on the collagen general metabolism in normal and adrenalectomized rats. 1975

C Vlădescu, and E Ganea, and L Petrescu

The effect of doses of 100, 250, 500, and 700 R on the urinary excretion of hydroxyproline in normal and adrenalectomized rats was followed over a period of 30 days. Urinary hydroxyproline is decreased by 100 and 250 R doses and increased by those of a 500 and 700 R. The first effect is explained by an increase of the insolubility of collagen as a result of the appearance of additional intermolecular crosslinkages, and the second one by breakage of the mentioned linkages. Adrenalectomized rats, both normal and irradiated, show a more significant decrease in the urinary excretion of hydroxyproline. Results are discussed on the basis of related bibliography, outlining the practical utility of the research.

UI MeSH Term Description Entries
D011830 Radiation Effects The effects of ionizing and nonionizing radiation upon living organisms, organs and tissues, and their constituents, and upon physiologic processes. It includes the effect of irradiation on food, drugs, and chemicals. Effects, Radiation,Effect, Radiation,Radiation Effect
D003094 Collagen A polypeptide substance comprising about one third of the total protein in mammalian organisms. It is the main constituent of SKIN; CONNECTIVE TISSUE; and the organic substance of bones (BONE AND BONES) and teeth (TOOTH). Avicon,Avitene,Collagen Felt,Collagen Fleece,Collagenfleece,Collastat,Dermodress,Microfibril Collagen Hemostat,Pangen,Zyderm,alpha-Collagen,Collagen Hemostat, Microfibril,alpha Collagen
D006909 Hydroxyproline A hydroxylated form of the imino acid proline. A deficiency in ASCORBIC ACID can result in impaired hydroxyproline formation. Oxyproline,4-Hydroxyproline,cis-4-Hydroxyproline,4 Hydroxyproline,cis 4 Hydroxyproline
D000311 Adrenal Glands A pair of glands located at the cranial pole of each of the two KIDNEYS. Each adrenal gland is composed of two distinct endocrine tissues with separate embryonic origins, the ADRENAL CORTEX producing STEROIDS and the ADRENAL MEDULLA producing NEUROTRANSMITTERS. Adrenal Gland,Gland, Adrenal,Glands, Adrenal
D000315 Adrenalectomy Excision of one or both adrenal glands. (From Dorland, 28th ed) Adrenalectomies
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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