05. Radiation Toxicity

-
Image
 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...
Post a Comment

01.NASA Contributions to Cancer Research

-

                                                 
                                                 NASA Contributions to Cancer Research

 

NASA (National Aeronautics and Space Administration) was established on Oct 1, 1958, as an independent agency of the U.S. federal government responsible for the civil space program, aeronautics research, and discovering secrets of the universe. NASA is funded by taxpayers who are citizens of the United States of America.


NASA accelerated the works already human and robotic spaceflights. NASA began its marvelous journey with project Mercury (1958) then project Gemini, Six successful human moon landings (Apollo program 1961 - 1972), Mars Lander missions, Planetary flybys, and many more.

But NASA not only researches related space and cosmic environment. NASA also researches climate changes, volcano studies, and new aeronautics models related to future transportation and especially develops new health care and treatment modifications by acquiring data from different research fields. Especially NASA has a huge contribution to Cancer treatment, Radiation Oncology, Genetics and genomics, medical radiation therapy, and Radiation safety.

So as an undergraduate, I am humbly fascinated to share my knowledge and science facts that I’m acquired by researching these related fields about how radiation and radioactivity  combine with the cosmic environment and new research about medical radiation fields and discover more about how these two disciplines connect each other for blooming present and future discoveries of human mankind

Reference : https://www.nasa.gov/

Stay Tuned!

Linkedin :Sachindra Lochana


Comments

Post a Comment

Popular posts from this blog

04. Biological effects of Non ionizing radiation

-
Image
 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...
Read more

03.Cellular Response for Ionizing Radiation

-
Image
 Cellular Response for Ionizing Radiation Radiation sources are all around the environment and every time we are exposed to different kinds of radiation from low-frequency to high-frequency electromagnetic range. Studies of radiation mainly use for radiotherapy and space exploration. Biologically cells respond to radiation depending on their energy. When we consider radiotherapy it exposed cells intentionally and damages cell structures which cell harmful to the body with various mutations called tumors. Progress of this treatment depends on the radioresistance of tumor cells and induced damage to normal cells located near to tumor. Increasing radiodensities of tumor cells and specific radioprotection of normal tissues are strategies used to decrease the amount of damage to normal cells in radiotherapy, in a Space environment definitely produce highly protective fabrics and covers to reduce endanger of astronauts from cosmic radiation.  As mentioned in my previous blog q...
Read more