Answers
2, a, Radiobiology is radiation biology, it is a concept of ionizing radiation effect of living tissue that causes health effects on radiation. the cell which has radiosensitive die soon after exposure to radiation than radioresistant cells.
Several theories explain the dose-response model as multiple target theories. it explains to effects of human cells on exposure to radiation. A high dose of radiation exposure causes many effects on the human body. this theory explains the possible low dose radiation exposure that benefits to avoid harm.
Synergy theory in radiobiology as the main concept of the mixture dose-effect relationship provides a simple effect.
Molecular theory explain the DNA molecule as a central role of cell function has a critical target for radiation effect.
Combination of linear-quadratic dose connection for cell survival DNA molecules double structure avoids a break in the DNA molecule.
b, New discoveries of radiobiology show the new pathway for ionizing radiation exposure to the DNA damage response. Radiation biology discoveries should overcome the barriers with a new research workforce. It needs further investment and training. Radiation therapy along with inhibitors of DNA damage response kinase, DNA dependent protein kinase, ataxia telangiectasia related, ataxia telangiectasia mutated and cell cycle checkpoint inhibitors have the discovery of stem signal transduction pathway for ionizing radiation. It has fast discoveries in the radiobiology research community.
It has future gain in cancer stem cells, tumor metabolism with adequate knowledge in discovery to improve outcome.
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