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Metabolism and Genetic Disorders of Fructose: Pathophysiology, Diagnosis, and Treatment

This paper delves into the metabolism and genetic disorders related to fructose, exploring pathophysiology, diagnosis, and treatment options.

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    Metabolism and Genetic Disorders of Fructose: Pathophysiology, Diagnosis, and Treatment Describe the metabolic pathways involved in fructose metabolism, highlighting the key enzymes, their roles, and the consequences of inherited enzyme deficiencies, such as fructokinase and aldolase B deficiencies. Include information on the clinical manifestations, diagnosis, and treatment strategies for these conditions. Your answer should be approximately 800 - 1000 words.

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    Significant amounts of fructose, which is formed by cleaving a sucrose before entering the portal vein system, converted to glucose in the gut cells. Another part of the fructose is absorbed via transfer protein, i.e. lightweight by diffusion. Figure 1. Metabolism of fructose Metabolism of fructose (Figure 1) starts with the phosphorylation reaction catalyzed by fructokinase with the formation of fructose - 1 - phosphate. The enzyme is found in liver and kidney and intestine. This enzyme has an absolute specificity, however, unlike glucokinase, insulin does not affect its activity. The latter circumstance explains why the level of excretion of fructose in the urine of patients with diabetes and healthy is no different. Fructose - 1 - phosphate can be converted to fructose - 6 - phosphate be cause of the lack of appropriate enzyme. Instead of fructose - 1 - phosphate is cleaved more fructo - 1 - fosfataldolazoy (aldolase B) dihydroxyacetone and glyceraldehyde - 3 - phosphate. The latter is the intermediate of glycolysis and is formed in the reaction catalyzed by fructose - 1,6 - bisfosfosfataldolazoy (aldolase A). Glyceraldehyde may be included in glycolysis after phosphorylation with ATP. Or two triose phosphate molecules decompose on the glycolytic pathway, or condensed to form fructose 1,6 - bisphosphate and more

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