Zhonghua zheng xing shao shang wai ke za zhi = Zhonghua zheng xing shao shang waikf [i.e. waike] zazhi = Chinese journal of plastic surgery and burns · 1999
[Experimental study on the mechanisms of enhancement of aerobic glycolysis of muscles in burns and sepsis--the verification of the existence and the enhancement of the aerobic glycolysis of muscles in early postburn period and sepsis].
Аннотация на английскомСтатьяПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Chai J, Diao L, Sheng Z
Аннотация
OBJECTIVE: To verify if aerobic glycolysis exists in the muscle cells in normal rats and to analyze the changes in aerobic glycolysis in the muscle cells in the early postburn period and in septic states.
METHOD: Using septic model of rats, we established the in vitro muscle incubation system with sufficient oxygen supply as well as the NADH fluoremetric method for the detection of trace amount of lactate in the samples. Extensor digitorium longus (EDL) and soleus muscles which represent two types of muscle fiber were studied.
RESULTS: In the early postburn period as well as in septic states, the lactate production of muscle cells was significantly elevated as compared to the normal controls even though the muscles were incubated in a fully oxygenated media. The levels of aerobic glyoclysis, as well as its changes in postburn period and in septic states, vary depending on the difference in the fiber composition of the muscles.
CONCLUSION: Muscle cells might develop a kind of metabolic enhancement which is referred to as aerobic glycolysis rather than the metabolic defect which results from tissue hypoperfusion and hypoxia in the early postburn period as well as in septic states. This provides us a special insight to elucidate the mechanisms of the metabolic derangement in the early postburn period and in sepsis.
METHOD: Using septic model of rats, we established the in vitro muscle incubation system with sufficient oxygen supply as well as the NADH fluoremetric method for the detection of trace amount of lactate in the samples. Extensor digitorium longus (EDL) and soleus muscles which represent two types of muscle fiber were studied.
RESULTS: In the early postburn period as well as in septic states, the lactate production of muscle cells was significantly elevated as compared to the normal controls even though the muscles were incubated in a fully oxygenated media. The levels of aerobic glyoclysis, as well as its changes in postburn period and in septic states, vary depending on the difference in the fiber composition of the muscles.
CONCLUSION: Muscle cells might develop a kind of metabolic enhancement which is referred to as aerobic glycolysis rather than the metabolic defect which results from tissue hypoperfusion and hypoxia in the early postburn period as well as in septic states. This provides us a special insight to elucidate the mechanisms of the metabolic derangement in the early postburn period and in sepsis.