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Fuel metabolism fasting

FIGURE 23-28 Fuel metabolism in the liver during prolonged fasting or in uncontrolled diabetes mellitus. After depletion of stored carbohydrates, to proteins become an important source of glucose, produced from glucogenic amino acids by gluconeogenesis. ... [Pg.907]

In the following section, we will provide an overview of varions types of dietary components and examples of the pathways involved in ntilizing these components. We will describe the fuels in our diet, the compounds produced by their digestion, and the basic patterns of fuel metabolism in the tissues of our bodies. We will describe how these patterns change when we eat, when we fast for a short time, and when we starve for prolonged periods. Patients with medical problems that involve an inability to deal normally with fuels will be introduced. These patients will appear repeatedly throughout the book and will be joined by other patients as we delve deeper into biochemistry. [Pg.2]

Phosphodiesterase is inhibited by methyixanthines, a class of compounds that includes caffeine. Would the effect of a methyixanthine on fuel metabolism be similarto fasting orto a high-carbohydrate meal ... [Pg.488]

Fig. 31.19. Changes in blood fuels during fasting. The units for fatty acids, glucose, and ketone bodies are millimolar (on left) and for urinary nitrogen and ammonia are grams/day (on right). Modified from Linder MC. Nutritional Biochemistry and Metabolism, 2nd Ed. Stamford, CT Appleton Lange, 1991 103. 1991 Appleton Lange. Fig. 31.19. Changes in blood fuels during fasting. The units for fatty acids, glucose, and ketone bodies are millimolar (on left) and for urinary nitrogen and ammonia are grams/day (on right). Modified from Linder MC. Nutritional Biochemistry and Metabolism, 2nd Ed. Stamford, CT Appleton Lange, 1991 103. 1991 Appleton Lange.
Earners KJ, et al. The concentration of blood components related to fuel metabolism during prolonged fasting in children. CUn Chim Acta. 1985 152(l-2) 155-63. [Pg.87]

Figure 16.7 Pattern of fuel utilisation during a short fast. This is the metabolic condition after, for example, the overnight fast. Figure 16.7 Pattern of fuel utilisation during a short fast. This is the metabolic condition after, for example, the overnight fast.
Figure 5-5. Metabolic activities of major organs during a short-term fast. The importance of the liver in providing glucose to support the brain and other glucose-requiring organs in the post-absorptive state is illustrated. The body relies on available glycogen stores as a ready source for glucose as fuel. PPP, pentose phosphate pathway FA, fatty adds TAG, triacylglycerol. Figure 5-5. Metabolic activities of major organs during a short-term fast. The importance of the liver in providing glucose to support the brain and other glucose-requiring organs in the post-absorptive state is illustrated. The body relies on available glycogen stores as a ready source for glucose as fuel. PPP, pentose phosphate pathway FA, fatty adds TAG, triacylglycerol.
During Fasting and Starvation, Metabolism Shifts to Provide Fuel for the Brain... [Pg.906]

TABLE 23-5 Available Metabolic Fuels in a Normal-Weight 70 kg Man and in an Obese 140 kg Man at the Beginning of a Fast... [Pg.906]

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See also in sourсe #XX -- [ Pg.7 , Pg.8 , Pg.8 , Pg.9 ]



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