Inside that outer ring sits the nucleus pulposus , a gelatinous core rich in type II collagen, elastin fibers, and a hydrated proteoglycan gel that gives the disc its shock-absorbing properties
Only one study in patients with gastro-esophageal reflux disease (GERD) took the effort of comparing CLE to classical Ussing chamber experiments, which showed no differentiation between GERD and controls by probe-based CLE and no correlation of CLE findings and ex vivo permeability (51)
No adverse effects were reported, but rigorous, large-scale trials are lacking, according to NIH
A large phase clinical trial of NR has been registered on a broad range of pathologies, including infection, neoplasms, aging-related diseases and disorders that occur in the circulatory system, genitourinary system, nervous system and skin (Table 1)