Navigation Links
The space double-whammy: Less gravity, more radiation
Date:2/28/2014

Astronauts floating weightlessly in the International Space Station may appear carefree, but years of research have shown that microgravity causes changes to the human body. Spaceflight also means exposure to more radiation. Together, microgravity and radiation exposure add up to pose serious health risks. But research is not only making space safer for astronauts, it's helping to improve health care for the Earth-bound as well.

One of the effects of space radiation is damage to DNA, or deoxyribonucleic acid, the genetic material in nearly every cell of our bodies. When damaged DNA repairs itself, errors can occur that increase the risk of developing cancer. A new study, MicroRNA Expression Profiles in Cultured Human Fibroblast in Space - Micro-7 for short - will examine the effect of gravity on DNA damage and repair. Because there is no controlled radiation source aboard the space station, the cells will be treated with bleomycin, a chemotherapy drug, to induce DNA damage.

"When a cell in the human body is exposed to radiation, DNA will be broken and repaired, which is considered the initiation stage of tumor development," explains principal investigator Honglu Wu, Ph.D., at NASA's Johnson Space Center in Houston. "Cells damaged from radiation exposure in space also experience microgravity, which we know changes gene expressions even without radiation exposure." That equals the space double-whammy for the human body.

Previous studies have exposed cells or organisms on Earth to high-energy charged particles to simulate space radiation, using the resulting cell damage or induction of tumors to predict the risk of cancer for astronauts from radiation. But those predictions don't include the effects of microgravity, making them potentially less accurate than the space based Micro-7 study. This investigation will address that by examining the effects of bleomycin-induced DNA damage aboard the orbiting laboratory.

The study will
'/>"/>

Contact: Laura Niles
Laura.E.Niles@nasa.gov
281-244-7069
NASA/Johnson Space Center
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Rugged, rapid monitor safeguards space crews
2. Space flies offer clues about microgravitys impact on astronauts
3. Scientists discover that thyroid cancer cells become less aggressive in outer space
4. Combustion continues to draw researchers to space station
5. Beating bacteria on Earth -- and in space
6. CU-Boulder to fly antibiotic experiment, education project on ants to space station
7. New evidence suggests Neanderthals organized their living spaces
8. UMass Amherst physics professor wins grant to study organization inside cells space
9. NASAs Cassini spacecraft finds ingredient of household plastic in space
10. Kaiser Permanentes Robert Mangel to Speak at Rock Stars of Big Data: Register Now to Reserve Your Space
11. Identify Security Software to Make Cyberspace Secure Once And For All
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
The space double-whammy: Less gravity, more radiation
(Date:4/27/2015)... Profile Solutions, Inc. (OTC: PSIQ), a leading ... pleased to announce that Dr Gerry Bedore ... of its scientific advisory board. ... leader in technology-enhanced learning models. He was a co-founder ... studies and books focused on online student success and ...
(Date:4/20/2015)... The announcement comes as demand for fire ... Ireland,s foremost records management company, has ... an impressive track record of clients within the first 12 ... management sector in Dubai . As a ... employ a further eight staff members at its Irish headquarters. ...
(Date:4/14/2015)... 14, 2015 NXT-ID, Inc. (NASDAQ: NXTD ... focused on the growing mobile commerce market, announces that ... 2015 New York Design Awards under the category  ,Product ... City Design Awards are part of a global multi-disciplinary ... ratings from the marketplace, industry and judging panel. Winners ...
Breaking Biology News(10 mins):Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 2Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 3Profile Solutions Names Medicinal Cannabis, Agriculture and Technology Expert Dr. Gerry Bedore to its Scientific Advisory Board 4Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 2Glenbeigh Records Management Wins Contract With Dubai Islamic Bank 3NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 2NXT-ID's Wocket Smart Wallet Nominated for 2015 New York Design Awards in 'Product Design- Technology' 3
... German . , It is currently estimated that ... those reserves where extraction is cost-effective will only flow for ... Institute for Coal Research and at the Max Planck Institute ... worthwhile to tap into previously unused resources. They have developed ...
... concept of altruism has long been debated in philosophical ... debate. From the perspective of natural selection, altruism ... likelihood of a relative,s survival and reproduction increases the ... Social behavior, kin recognition, and altruism are well known ...
... with colleagues in Sweden and abroad, have identified an entirely ... inhibits formation of new blood vessels. Inhibiting the formation of ... cancer treatment. The study is published in the November issue ... the formation of new blood vessels, is strictly regulated by ...
Cached Biology News:Energy-saving powder 2Energy-saving powder 3Can a plant be altruistic? 2New mechanism explains how the body prevents formation of blood vessels 2
(Date:5/1/2015)... 1, 2015 Pfenex Inc. (NYSE MKT: ... development of biosimilar therapeutics including high value and ... first quarter 2015 financial results will be released ... of market. At 8:30 am Eastern Time, Pfenex management ... financial results and provide a business update. A press ...
(Date:5/1/2015)... LONDON , May 1, 2015 ... following equities: Genetic Technologies Ltd (NASDAQ: GENE ... Thermo Fisher Scientific Inc. (NYSE: TMO ), ... Inc. (NYSE: PKI ). Free research report ... http://get.Investor-Edge.com/pdf/?c=Genetic%20Technologies&d=01-May-2015&s=GENE . On Thursday, April 30, 2015, the ...
(Date:5/1/2015)... RESEARCH TRIANGLE PARK, N.C. , May 1, 2015 ... that Roger Jeffs , Ph.D., President and Co-Chief Executive ... on the company,s business at the Deutsche Bank 40 th ... . The presentation will take place on ... can be accessed via a live webcast on the United ...
(Date:4/30/2015)... SAN DIEGO , April 30, 2015   ... drugs, announced today an update on its Ebola antiviral ... of Tamir,s leading candidates, TMR004, is currently being evaluated ... frontline of the battle against Ebola. During the first ... Voice And Leadership Meeting To Accelerate The Evaluation of ...
Breaking Biology Technology:Pfenex To Report First Quarter 2015 Results and Provide Business Update on Thursday, May 14, 2015 2Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 2Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 3Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 4Life Sciences Tools and Services Stocks on our Radar -- Genetic Technologies, Agilent Technologies, Thermo Fisher Scientific, Sequenom, and PerkinElmer 5Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 2Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 3Tamir Biotechnology Provides Update on TMR004 Development Against Mutating Ebola 4
... , SHANDONG , ... YCT,International Group, Inc. ("China YCT" or the "Company") (OTC Bulletin ... the State Intellectual,Property Office of the People,s Republic of ... Spring Pharmaceutical Co.,Ltd., for "a unique method of making ginkgo ...
... soon be sporting RFID tags to improve their safety. ... Ontario Centres of Excellence (OCE) are undertaking a $1.4 ... can be used to notify subway vehicles of the ... "Our customers have asked us if we could ...
... ... University,s R&D Facility , ... Boston, MA (Vocus) January 21, 2010 -- The University of Massachusetts Boston today ... sample preparation instruments, has moved its research and development operations to the university,s ...
Cached Biology Technology:China YCT International Group, Inc. Announces That the State Intellectual Property Office of the People's Republic of China has Approved a Patent to its Operating Subsidiary, Shandong Spring Pharmaceutical Co. Ltd. 2China YCT International Group, Inc. Announces That the State Intellectual Property Office of the People's Republic of China has Approved a Patent to its Operating Subsidiary, Shandong Spring Pharmaceutical Co. Ltd. 3RFID tags to boost transit worker safety 2UMass Boston's Venture Development Center Announces New Bio-Science Partner 2UMass Boston's Venture Development Center Announces New Bio-Science Partner 3
Request Info...
384 Cluster Tube Racks...
The antibody recognizes the peptide sequence ESESQGPK (aa 441-448) of human class III beta-tubulin specific for neurones....
... Immunogen: Partially purified chicken ... detects vitamin D receptor (VDR) from ... and fish tissues. This antibody ... glucocorticoid receptors. MA1-710 detects both ...
Biology Products: