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Effects of microgravity on renal stone risk assessmentPhysiologic changes induced during human exposure to the microgravity environment of space may contribute to an increased potential for renal stone formation. Renal stone risk factors obtained 10 days before flight and immediately after return to earth indicated that calcium oxalate and uric acid stone-forming potential was increased after space flights of 4-10 days. These data describe the need for examining renal stone risk during in-flight phases of space missions. Because of limited availability of space and refrigerated storage on spacecraft, effective methods must be developed for collecting urine samples in-flight and for preserving (or storing) them at temperatures and under conditions commensurate with mission constraints.
Document ID
Document Type
Conference Paper
Pietrzyk, R. A. (Krug Life Sciences, Inc. Houston, TX, United States)
Pak, C. Y. C. (Texas, University Dallas, United States)
Cintron, N. M. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Whitson, P. A. (NASA Johnson Space Center Houston, TX, United States)
Date Acquired
August 15, 2013
Publication Date
August 1, 1992
Subject Category
Report/Patent Number
IAF PAPER 92-0257
Funding Number(s)
PROJECT: RTOP 199-18-11-02
Distribution Limits