2005
DOI: 10.1590/s1415-52732005000300010
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Frutose em humanos: efeitos metabólicos, utilização clínica e erros inatos associados

Abstract: Revisa-se o metabolismo da frutose e do sorbitol, suas principais indicações e conseqüências decorrentes do uso inadequado. A frutose é um importante carboidrato da dieta, sendo encontrada principalmente nas frutas e vegetais, e é produzida no organismo a partir da glicose pela via do sorbitol. A frutose é conhecida pelos erros inatos do seu metabolismo, cujas manifestações clínicas são potencialmente graves, e por seu uso como substituta da glicose na dieta de diabéticos, visto não depender da insulina para o… Show more

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Cited by 21 publications
(24 citation statements)
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References 24 publications
(37 reference statements)
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“…Fructose also differs because no energy is spent and no insulin stimulus is required for uptake and phosphorylation in the liver. Furthermore, phosphorylated fructose may form two trioses, which in turn may follow three different paths: to participate in the glycolytic pathways providing pyruvate and releasing energy (such as in the metabolism of other sugars); to be reduced into glycerol, which is required to synthesize triacylglycerols, phospholipids, and other lipids; or to be condensed into forming fructose-1,6-diphosphate and, subsequently, glucose or glycogen [36].…”
Section: Sugar Metabolism and Health Effectsmentioning
confidence: 99%
See 1 more Smart Citation
“…Fructose also differs because no energy is spent and no insulin stimulus is required for uptake and phosphorylation in the liver. Furthermore, phosphorylated fructose may form two trioses, which in turn may follow three different paths: to participate in the glycolytic pathways providing pyruvate and releasing energy (such as in the metabolism of other sugars); to be reduced into glycerol, which is required to synthesize triacylglycerols, phospholipids, and other lipids; or to be condensed into forming fructose-1,6-diphosphate and, subsequently, glucose or glycogen [36].…”
Section: Sugar Metabolism and Health Effectsmentioning
confidence: 99%
“…Uric acid production that occurs during fructose metabolism [36] as a secondary metabolite, which exponentially increases with the intake of fructose derived from sugary beverages [53], should also be considered. Hyperuricemia caused by fructose metabolism may be related to an increased risk of developing gout, according to a cohort study of men in the United States [53].…”
Section: Sugar Metabolism and Health Effectsmentioning
confidence: 99%
“…A enzima aldolase redutase é responsável pela reação que transforma glicose em sorbitol e a sorbitol desidrogenase é responsável pela conversão do sorbitol à frutose (Barreiros et al, 2005).…”
Section: Catarataunclassified
“…A frutose-1 fosfato, por sua vez, é dividida em duas trioses, diidroxiacetona e gliceraldeído-fosfato, em uma reação mediada pela aldolase B. Essas duas trioses podem ser condensadas para formar a frutose-1,6-difosfato, a qual pode ser convertida em glicose. A seguir, a ocorrência de glicólise e a fosforilação oxidativa (oxidação de carboidrato) são estimuladas, promovendo um aumento do QR 29 .…”
Section: I S C U S S ã Ounclassified