In trained (long-distance runners) and untrained volunteers aged 22 to 57 years, basal plasma glutathione (GSH) concentration decreased significantly with increasing age. In most age groups basal GSH concentration of oxidized glutathione (GSSG) and lipid peroxides (LPO) was not influenced either by age or by training. Following acute physical exercise (bicycle ergometric test), which was maximal for each person and thus different in trained and untrained persons, plasma GSH, GSSG, and LPO concentrations were not changed at all in untrained volunteers. In trained persons, however, GSH concentration was significantly decreased by about 30%. Surprisingly, we observed a decrease in plasma LPO content by about 40%. GSSG content was not altered. The comparison with some physical-physiological parameters indicates that the changes in GSH and LPO concentrations depend on the extent of acute physical exercise rather than on previous training. Alterations of GSH and LPO in plasma could be of physiologic significance.

RESUMO O índice de massa corporal (IMC) é amplamente utilizado por médicos para quantificar a massa corporal de pessoas adultas. O índice elevado de gordura

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A ruptura do ligamento cruzado (LC) é uma enfermidade diagnosticada em grande parte dos cães com problemas articulares, sendo a causa mais comum de afecção articular degenerativa da articulação do joelho. Este trabalho objetivou avaliar clinicamente a ação da malha de polipropileno como único substituto do LC cranial e caudal de cães, ressaltando particularidades da técnica aqui proposta. Foram utilizados 20 cães, submetidos à desmotomia unilateral dos LC cranial e caudal. Vinte e um dias após a ruptura, todos foram tratados cirurgicamente pela técnica de redução aberta, com o implante de polipropileno substituindo apenas o LC cranial. A técnica proposta demonstrou rápida execução e pouca dissecação de tecidos moles, retorno precoce à deambulação, resistência adequada do implante sem associação de imobilização externa e ausência de reação articular até os 90 dias de pós-operatório.

Currently

RESUMO No presente trabalho foi elaborada uma técnica para protocolo de colheita de medula óssea (MO) (10ml. kg -1 ), do osso femoral, para isolamento, quantificação e viabilidade da fração total de células mononucleares (CM).

The purine nucleotides, phosphocreatine (PCr), ammonia, and lactic acid were investigated in skeletal muscles of rats with prominent type I, type IIa, type IIb fibers, and the heart after exhaustive and endurance swimming tests. ATP, ADP, AMP, IMP, and PCr were determined by HPLC with UV detection in controls after maximal and endurance training for 6 weeks with or without a respective final test and also after final exhaustive or endurance test without preceding training. The swimming time in these tests was longer with than without training. A pronounced ATP decrease and a large increase in IMP, up to 4.9 mumol/g wet weight, were found in type IIb fibers after the maximal final test without preceding training. Compared with skeletal muscle, the IMP concentration in the heart was significantly lower after all exercise bouts, even though after maximal exercise AMP augmentation was highest, ATP reduction was greatest, and energy charge was lowest. The difference between the heart and skeletal muscle in the production of IMP indicates that despite AMP and ADP accumulation, myoadenylate deaminase (MAD) activity in the heart is considerably lower than in skeletal muscle, especially in type IIb fibers. The smaller amount of MAD per tissue, and also the different MAD isozyme pattern of the heart as reported in the literature, may be attributed to lower activation. The difference between MAD activation of the soleus muscle and of the iliacus muscle, both consisting predominantly of type I fibers, suggests that MAD activity may be influenced by biochemical demand and oxygen supply, varying with the anatomical localization. Even though ammonia and lactic acid were highly correlated, it is questionable whether the H+ ion increase due to the lactate accumulation itself triggers MAD activation, as has been found for AMP and ADP in skeletal muscle.

RESUMO Objetivou-se comparar a resposta infl amatória e o perfi l oxidativo da técnica de ovariossalpingohisterectomia (OSH) convencional com duas técnicas de Cirurgia Endoscópica por Orifícios Naturais (NOTES ABSTRACT This study aimed at comparing the infl ammatory response and the oxydative profi le of the conventional ovarysalpingohysterectomy (OSH) technique to Totally Natural Orifi ce Transluminal Endoscopic Surgery (NOTES) and Hybrid NOTES. Group of fi fteen female dogs was used for each technique.Blood samples were taken before the surgical procedure (basal) and 3, 6, 12, 24, 48 and