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Showing posts from April, 2023

05. Radiation Toxicity

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 Radiation Toxicity Medical effects of radiation exposure can be divided into two categories known as Acute Radiation Syndrome (ARS) and Delayed Effects of Acute Radiation Exposure (DEARE)Acute radiation exposure consists of health effects that immediately exposure of the body to a relatively high dose (>2-5Gy) delivered with high dose rate. ARS is visible as three syndromes based on the radiosensitivity of organs. Those are Hematopoietic syndrome (occurring after exposure 0.7-10Gy), Gastrointestinal syndrome (usually greater than 10 Gy), and Cardiovascular/Central nervous system syndrome ( dose greater than >50 Gy).DEARE is visible months or years after the radiation exposure symptoms such as prolonged gastrointestinal dysfunction, skin injury, renal failure, and lung injury. Radiation-induced damage occurs from long-lived free radicals, reactive oxygen species, and pro-inflammatory cytokines/chemokines which damage the recovery and repopulation of stem cells. The limita...
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05. Radiation Toxicity

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 Radiation Toxicity Medical effects of radiation exposure can be divided into two categories known as Acute Radiation Syndrome (ARS) and Delayed Effects of Acute Radiation Exposure (DEARE)Acute radiation exposure consists of health effects that immediately exposure of the body to a relatively high dose (>2-5Gy) delivered with high dose rate. ARS is visible as three syndromes based on the radiosensitivity of organs. Those are Hematopoietic syndrome (occurring after exposure 0.7-10Gy), Gastrointestinal syndrome (usually greater than 10 Gy), and Cardiovascular/Central nervous system syndrome ( dose greater than >50 Gy).DEARE is visible months or years after the radiation exposure symptoms such as prolonged gastrointestinal dysfunction, skin injury, renal failure, and lung injury. Radiation-induced damage occurs from long-lived free radicals, reactive oxygen species, and pro-inflammatory cytokines/chemokines which damage the recovery and repopulation of stem cells. The limita...
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04. Biological effects of Non ionizing radiation

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 Biological effects of Non ionizing radiation Non-ionizing radiation can define lower-range frequency waves in the electromagnetic range, and travel in space with the power of oscillating electric and magnetic fields. The difference between ionizing and non-ionization is, non-ionizing radiation energy is too low to process the ionizing process which expels electrons from the coulomb attraction of the nucleus. But it can transfer an electron from a low-energy state to a high-energy state. This excitation process can be induced risk to health by non-ionizing radiation. According to the energy of photons, different types of non-ionizing radiation energy decrease from ultraviolet radiation to radio waves.   Copyrights:  https://www.osha.gov/radiation   Ultraviolet radiation (UV) has a shorter wavelength than light and longer than X-rays. When certain cells are exposed to UV radiation the damage is induced by both photochemical and heating reactions. Photochemical e...
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