3H-TDR labelling of osteoprogenitor cells after 226RA incorporation in mice. 1977

V Kofránek, and O Parízek, and V Svoboda, and D Bubeníková, and J Machek

The time course of 3H-TDR labelling index of osteoprogenitor cells and the doses in endosteum of lumbar vertebra and distal femoral epiphysis were autoradiographically determined in young female mice after single injections of 19.7 and 55.9 micronCi/kg body weight of 226Ra. The selected bone areas were examined in animals killed 2 hours to 28 days after the injection of nuclide. It was ascertained that changes in the relative labelling index are depending on the absorbed doses of alpha radiation. The possible relevance of these experimental findings for the explanation of the osteosarcoma induction and localization is discussed.

UI MeSH Term Description Entries
D009381 Neoplasms, Radiation-Induced Tumors, cancer or other neoplasms produced by exposure to ionizing or non-ionizing radiation. Radiation-Induced Cancer,Cancer, Radiation-Induced,Radiation-Induced Neoplasms,Cancer, Radiation Induced,Cancers, Radiation-Induced,Neoplasm, Radiation-Induced,Neoplasms, Radiation Induced,Radiation Induced Cancer,Radiation Induced Neoplasms,Radiation-Induced Cancers,Radiation-Induced Neoplasm
D011883 Radium A radioactive element of the alkaline earth series of metals. It has the atomic symbol Ra and atomic number 88. Radium is the product of the disintegration of URANIUM and is present in pitchblende and all ores containing uranium. It is used clinically as a source of beta and gamma-rays in radiotherapy, particularly BRACHYTHERAPY.
D001842 Bone and Bones A specialized CONNECTIVE TISSUE that is the main constituent of the SKELETON. The principal cellular component of bone is comprised of OSTEOBLASTS; OSTEOCYTES; and OSTEOCLASTS, while FIBRILLAR COLLAGENS and hydroxyapatite crystals form the BONE MATRIX. Bone Tissue,Bone and Bone,Bone,Bones,Bones and Bone,Bones and Bone Tissue,Bony Apophyses,Bony Apophysis,Condyle,Apophyses, Bony,Apophysis, Bony,Bone Tissues,Condyles,Tissue, Bone,Tissues, Bone
D001859 Bone Neoplasms Tumors or cancer located in bone tissue or specific BONES. Bone Cancer,Cancer of Bone,Cancer of the Bone,Neoplasms, Bone,Bone Neoplasm,Neoplasm, Bone
D002455 Cell Division The fission of a CELL. It includes CYTOKINESIS, when the CYTOPLASM of a cell is divided, and CELL NUCLEUS DIVISION. M Phase,Cell Division Phase,Cell Divisions,Division Phase, Cell,Division, Cell,Divisions, Cell,M Phases,Phase, Cell Division,Phase, M,Phases, M
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D004307 Dose-Response Relationship, Radiation The relationship between the dose of administered radiation and the response of the organism or tissue to the radiation. Dose Response Relationship, Radiation,Dose-Response Relationships, Radiation,Radiation Dose-Response Relationship,Radiation Dose-Response Relationships,Relationship, Radiation Dose-Response,Relationships, Radiation Dose-Response
D005260 Female Females
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
D001345 Autoradiography The making of a radiograph of an object or tissue by recording on a photographic plate the radiation emitted by radioactive material within the object. (Dorland, 27th ed) Radioautography

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