In this study we compared the kinetics of phosphocreatine (PCr) and P(i) recovery, and their dependency on cytosolic pH in 38 normal individuals. Spectra were acquired during rest, work and recovery. A time resolution of 10 s was used to obtain detailed information. The kinetics of PCr and P(i) recovery almost overlapped when the lowest value of cytosolic pH reached during recovery (termed the minimum pH) was < 6.95, while they were completely dissociated when the minimum pH was > 6.95. This result is interpreted as indirect in vivo evidence of the kinetic control exerted by ADP on mitochondrial oxidation. Our results represent a rationale for new experimental conditions to be used in clinical routine studies of pathologies due to primary or secondary mitochondrial malfunction.
|Anno di pubblicazione:||1993|
|Titolo:||IN-VIVO ASSESSMENT OF MITOCHONDRIAL FUNCTIONALITY IN HUMAN GASTROCNEMIUS-MUSCLE BY P-31 MRS - THE ROLE OF PH IN THE EVALUATION OF PHOSPHOCREATINE AND INORGANIC-PHOSPHATE RECOVERIES FROM EXERCISE|
|Autori:||S. IOTTI; R. LODI; C. FRASSINETI; P. ZANIOL; B. BARBIROLI.|
|Appare nelle tipologie:||Articolo su rivista|
File in questo prodotto:
I documenti presenti in Iris Unimore sono rilasciati con licenza Creative Commons Attribuzione - Non commerciale - Non opere derivate 3.0 Italia, salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris