NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Simulating certain aspects of hypogravity: Effects on the mandibular incisors of suspended rats (PULEH model)The effect of a hypogravity simulating model on the rate of mandibular incisor formation, dentinogenesis and, amelogenesis in laboratory rats was studied. The model is the partial unloading by elevating the hindquarters. In this system, rat hindquarters are elevated 30 to 40 deg from the cage floors to completely unload the hindlimbs, but the animals are free to move about using their forelimbs. This model replicates the fluid sift changes which occur during the weightlessness of spaceflight and produces an osteopenia in the weight bearing skeletons. The histogenesis and/or mineralization rates of the mandibular incisor during the first 19d of PULEH in young growing rats are recorded.
Document ID
19840010776
Document Type
Conference Paper
Authors
Simmons, D. J. (Washington Univ. Moffett Field, CA, United States)
Winter, F. (Washington Univ.)
Morey-Holton, E. R. (NASA Ames Research Center)
Date Acquired
August 12, 2013
Publication Date
February 1, 1984
Publication Information
Publication: NASA. Washington NASA Space Biol. Program
Subject Category
LIFE SCIENCES (GENERAL)
Funding Number(s)
CONTRACT_GRANT: NAGW-301
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

IDRelationTitle19840010761Analytic PrimaryNASA Space Biology Program. Eighth annual symposium's program and abstracts