Avtor/Urednik		Moser, Ewald; Gomišček, Gregor; Schuster, Johann; Holzmueller, Peter
Naslov		Spin-spin relaxation time manifestations of tissue degradation
Tip		članek
Vir		Croat Chem Acta
Vol. in št.		Letnik 65, št. 1
Leto izdaje		1992
Obseg		str. 211-4
Jezik		eng
Abstrakt		The changes of spin-spin (T2) reacation time in rat liver and muscle biopsies after tissue excision were investigated by low resolution NMR spectrometry. Relaxation times T2 were determined during the first four hors after the tissue excision at 9-minute time intervals, keeping the tissue at constant temperature. Series of measurements were performed at three different temperatures (7, 20, 37 degrees C). Changes in pH were measured under the same experimental conditions. Due to degradation processes after tissue excision, molecular and structural changes take place in the cells and are manifested in variations of T2 value. An empirical relation is suggested to describe the observed correlation between T2 and pH, as well as temperature in the excised liver and muscle tissue.
Deskriptorji		MUSCLE, SKELETAL LIVER NUCLEAR MAGNETIC RESONANCE HYDROGEN-ION CONCENTRATION TEMPERATURE RATS, SPRAGUE-DAWLEY