Space radiation and cataracts in astronauts

Citation
Fa. Cucinotta et al., Space radiation and cataracts in astronauts, RADIAT RES, 156(5), 2001, pp. 460-466
Citations number
38
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Experimental Biology
Journal title
RADIATION RESEARCH
ISSN journal
0033-7587 → ACNP
Volume
156
Issue
5
Year of publication
2001
Part
1
Pages
460 - 466
Database
ISI
SICI code
0033-7587(200111)156:5<460:SRACIA>2.0.ZU;2-0
Abstract
For over 30 years, astronauts in Earth orbit or on missions to the moon hav e been exposed to space radiation comprised of high-energy protons and heav y ions and secondary particles produced in collisions with spacecraft and t issue. Large uncertainties exist in the projection of risks of late effects from space radiation such as cancer and cataracts due to the absence of ep idemiological data. Here we present the first epidemiological data linking an increased risk of cataracts for astronauts with higher lens doses (>8 mS v) of space radiation relative to other astronauts with lower lens doses (< 8 mSv). Our study uses historical data for cataract incidence in the 295 as tronauts participating in NASA's Longitudinal Study of Astronaut Health (LS AH) and individual occupational radiation exposure data. These results, whi le preliminary because of the use of subjective scoring methods, suggest th at relatively low doses of space radiation are causative of an increased in cidence and early appearance of cataracts. (C) 2001 by Radiation Research S ociety.