Glycogen metabolism and the function of fast and slow muscles of the rat

Moruzzi, E. Villa; Bergamini, Ettore; Bergamini, Z. Gori

doi:10.1007/bf00581520

Cited by 18 publications

(8 citation statements)

References 23 publications

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“…The metabolic specialization of the muscle is an important cause of variation in glycogen level. With respect to the comparison between the fast-white muscle and the slow-red ones, it is well established that the former contain more glycogen, in laboratory animals (Villa-Moruzzi et al 1981; Cassens and Cooper 1971), as well as in pigs (Monin et ul. 1987;Lefaucheur er al.…”

Section: Muscle Typementioning

confidence: 99%

A REVIEW OF THE CAUSES OF VARIATION IN MUSCLE GLYCOGEN CONTENT AND ULTIMATE pH IN PIGS

Fernández

Tornberg²

1991

Journal of Muscle Foods

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Muscle glycogen at slaughter causes variation in pork technological qualities, since it affects the ultimate pH (24 h postmortem). This review addresses various factors influencing muscle glycogen storage and the ultimate pH of pig meat. Results discussed in this paper indicate that breed and preslaughter handling, i.e., waiting time in lairage, mixing, and to a lesser extent fasting, significantly influence ultimate pH. Furthermore, interactions between handling procedures and breed could be highly significant, as with PSE meat. Since the recent discovery of the major gene rn+/RN− which is assumed to influence glycogen concentration in the muscle of live pigs, genotype is considered an important source of variation in ultimate pH. All factors likely to influence glycogen concentration must be considered relative to the metabolic and contractile properties of muscle. These play an important role in the amount of glycogen at rest and in its depletion during chronic stress or muscular exercise.

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Section: Muscle Typementioning

confidence: 99%

A REVIEW OF THE CAUSES OF VARIATION IN MUSCLE GLYCOGEN CONTENT AND ULTIMATE pH IN PIGS

Fernández

Tornberg²

1991

Journal of Muscle Foods

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“…Par ailleurs, l'utilisation du glycogène dépend de façon caractéristique du type de muscle (Villa Moruzzi et al, 1981 ) : glycogénolyse et glycolyse, mesurées par la production de pyruvate et de lactate, sont deux fois plus élevées dans les muscles blancs que dans les muscles rouges (Domonkos, 1961 ;Bocek et al, 1966). Ce (Opie et Newsholme, 1967), n'en incorpore que très peu (McLane et Holloszy, 1979).…”

Section: A) Propriétés Des Fibres Musculairesunclassified

Propriétés des fibres musculaires squelettiques. 1. Influence de l'innervation motrice

Bacou¹,

Vigneron²

1988

Reprod. Nutr. Dévelop.

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“…There was a parellel increase in the product of heart rate and mean aortic pressure. In many respects, the changes in sugar metabolism are very similar to those in rat skeletal muscle following exercise (Villa Moruzzi et al (1981).…”

Section: Discussionmentioning

confidence: 93%

“…Muscle glycogen is always broken down during contraction -even when glycogen stores do not undergo any alteration -and the rate of glycogen turnover changes dramatically with function, both in fast -and slow-twitch fibres (Villa Moruzzi et al 1981) Offprint requests to: E. Bergamini…”

Section: Introductionmentioning

confidence: 99%

Effects of the administration of angiotensin II on cardiac glycogen metabolism in the rat

Tata¹,

Roso²,

Gori³

et al. 1990

Pflügers Arch

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Changes in glycogen metabolism after an intravenous injection of angiotensin II were investigated in the left and right ventricles of the rat heart, as a function of location within the ventricular wall. Hearts were cut into 100-microns thin section, all of which were analysed for glycogen content, glucose incorporation into glycogen and 2-deoxyglucose uptake and phosphorylation after the intravenous injection of 14C-labelled sugar. In control hearts, glycogen levels were uniform across the wall in both ventricles, while the rate of sugar uptake and phosphorylation, and that of glucose incorporation into glycogen, were significantly higher in the subendocardial myocardium of the left ventricular wall. After angiotensin II administration, heart glycogen levels decreased slightly in the left, but not in the right ventricle, while 2-deoxyglucose uptake and phosphorylation, and glucose incorporation into glycogen, increased 2,5- and 5-fold, respectively. With regard to the distribution across the wall of the left ventricle after angiotensin administration, glycogen levels and glucose incorporation into glycogen were uniformly distributed, whereas sugar phosphorylation was still higher in the subendocardium.

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Glycogen metabolism and the function of fast and slow muscles of the rat

Cited by 18 publications

References 23 publications

A REVIEW OF THE CAUSES OF VARIATION IN MUSCLE GLYCOGEN CONTENT AND ULTIMATE pH IN PIGS

A REVIEW OF THE CAUSES OF VARIATION IN MUSCLE GLYCOGEN CONTENT AND ULTIMATE pH IN PIGS

Propriétés des fibres musculaires squelettiques. 1. Influence de l'innervation motrice

Effects of the administration of angiotensin II on cardiac glycogen metabolism in the rat

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