The IR spectra of dry films of synovial fluid from normal and arthritic joints are presented. The spectra suggest the existence of CO 2 clathrates in these fluids which are of remarkable stability in comparison to well-known CO 2 clathrate hydrates. To our knowledge, this is the first demonstration of the formation of CO 2 clathrates in biological media. The proportion of CO 2 clathrates found in synovial fluid appears to vary with the state of health of joints and thus may be of use in the clinical diagnosis of arthritis.
No takes yet. Share an insight, caveat, or question.
Eysel et al. (1993) studied this question.
Synapse has enriched 2 closely related papers on similar clinical questions. Consider them for comparative context: