Abstract:
:Polyhydric alcohols (polyols) are widely distributed in nature, and the enzymes of the polyol pathway (aldose reductase and sorbitol dehydrogenase) are present in many mammalian tissues. The function of this pathway remains a mystery. A primary role for the pathway in the pathogenesis of 'sugar cataract' was provided by a number of experimental observations and in the 1960s the 'osmotic hypothesis' was propounded. This hypothesis also had implications for the pathogenesis of diabetic neuropathy. However, in the 1970s doubts were raised about the validity of the hypothesis, culminating in experiments which suggested that abnormalities in myo-inositol metabolism in nerve and lens were more closely related to the glucose-induced functional changes in these tissues than was the polyol pathway. Nevertheless, increased activity of the polyol pathway must still be regarded as an instigator of the biochemical abnormalities that lead to damage of lens and nerve in diabetes mellitus.
journal_name
Drugsjournal_title
Drugsauthors
Clements RS Jrdoi
10.2165/00003495-198600322-00003subject
Has Abstractpub_date
1986-01-01 00:00:00pages
3-5eissn
0012-6667issn
1179-1950journal_volume
32 Suppl 2pub_type
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