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Record Details

Record 3 of 3
The Use of NASA Light-Emitting Diode Near-Infrared Technology for Biostimulation
Author and Affiliation:
Whelan, Harry T.(Medical Coll. of Wisconsin, Milwaukee, WI United States)
Abstract: Studies on cells exposed to microgravity and hypergravity indicate that human cells need gravity to stimulate growth. As the gravitational force increases or decreases, the cell function responds in a linear fashion. This poses significant health risks for astronauts in long-term spaceflight. The application of light therapy with the use of NASA LEDs will significantly improve the medical care that is available to astronauts on long-term space missions. NASA LEDs stimulate the basic energy processes in the mitochondria (energy compartments) of each cell, particularly when near-infrared light is used to activate the color sensitive chemicals (chromophores, cytochrome systems) inside. Optimal LED wavelengths include 680, 730 and 880 nm and our laboratory has improved the healing of wounds in laboratory animals by using both NASA LED light and hyperbaric oxygen. Furthermore, DNA synthesis in fibroblasts and muscle cells has been quintupled using NASA LED light alone, in a single application combining 680, 730 and 880 nm each at 4 Joules per centimeter squared. Muscle and bone atrophy are well documented in astronauts, and various minor injuries occurring in space have been reported not to heal until landing on Earth. An LED blanket device may be used for the prevention of bone and muscle atrophy in astronauts. The depth of near-infrared light penetration into human tissue has been measured spectroscopically.
Publication Date: Oct 01, 2002
Document ID:
20030001599
(Acquired Jan 03, 2003)
Subject Category: LIFE SCIENCES (GENERAL)
Document Type: Conference Paper
Publication Information: Second International Conference on Near-Field Optical Analysis: Photodynamic Therapy and Photobiology Effects; 32-39; (NASA/CP-2002-210786); (SEE 20030001592)
Contract/Grant/Task Num: NAS8-01166; NAS8-99015
Financial Sponsor: NASA Marshall Space Flight Center; Huntsville, AL United States
Organization Source: Medical Coll. of Wisconsin; Milwaukee, WI United States
NASA Marshall Space Flight Center; Huntsville, AL United States
Description: 8p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: LIGHT EMITTING DIODES; SENSORY STIMULATION; NASA SPACE PROGRAMS; NEAR INFRARED RADIATION; TECHNOLOGY UTILIZATION; LONG DURATION SPACE FLIGHT; ASTRONAUTS; WOUND HEALING; BONES; MITOCHONDRIA; HIGH GRAVITY ENVIRONMENTS; OXYGEN
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