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- Jan 18, 2012
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From GT:
"The inability to break down the disaccharide lactose means that it is not absorbed. This dumps a high osmolar load in the colon, leading to decreased transit time (decreased water absorption), leading to diarrhea."
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Notice it says decreased transit time. Maybe I have yet to properly conceptualize the mechanism regarding osmotic diarrhoea, but wouldn't the transit time be the same in this case? It's not that feces are moving more quickly through the lumen; it's just that water is merely pulled into it. Therefore, wouldn't deranged motility be the only DOMES type to have decreased transit-time?
Could anyone please comment?
Cheers,
"The inability to break down the disaccharide lactose means that it is not absorbed. This dumps a high osmolar load in the colon, leading to decreased transit time (decreased water absorption), leading to diarrhea."
-----
Notice it says decreased transit time. Maybe I have yet to properly conceptualize the mechanism regarding osmotic diarrhoea, but wouldn't the transit time be the same in this case? It's not that feces are moving more quickly through the lumen; it's just that water is merely pulled into it. Therefore, wouldn't deranged motility be the only DOMES type to have decreased transit-time?
Could anyone please comment?
Cheers,