Nakatani T, Yasuda K, Ozawa K
Second Department of Surgery, Faculty of Medicine, Kyoto University, Japan.
Am J Surg. 1988 Apr;155(4):559-63. doi: 10.1016/s0002-9610(88)80410-0.
The ability of the liver to control blood glucose levels was studied in relation to the blood ketone body ratio, which reflects the hepatic mitochondrial redox state. In partially hepatectomized rabbits, postoperative continuous administration of a hyperosmolar glucose solution revealed the following findings: (1) The occurrence of glucose intolerance during postoperative hypertonic glucose administration was more dependent on the severity of the reduced hepatic mitochondrial redox state, as reflected by the blood ketone body ratio, than on the size of the liver remnant. (2) Insulin resistance developed when the redox state of the liver mitochondria was severely reduced. (3) It was very difficult to maintain the blood glucose level within normal range when the redox state was severely reduced. In patients, insufficient glucose administration can easily result in hypoglycemia, and excess administration can result in hyperglycemia, which might, in turn, result in hyperglycemic hyperosmolar nonketotic dehydration.
研究了肝脏控制血糖水平的能力与血酮体比率的关系,血酮体比率反映了肝脏线粒体的氧化还原状态。在部分肝切除的兔子中,术后持续给予高渗葡萄糖溶液显示出以下结果:(1)术后高渗葡萄糖给药期间葡萄糖不耐受的发生更多地取决于血酮体比率所反映的肝脏线粒体氧化还原状态降低的严重程度,而不是肝残余量的大小。(2)当肝脏线粒体的氧化还原状态严重降低时会出现胰岛素抵抗。(3)当氧化还原状态严重降低时,很难将血糖水平维持在正常范围内。在患者中,葡萄糖给药不足容易导致低血糖,而过量给药则会导致高血糖,进而可能导致高渗性高血糖非酮症性脱水。