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There’s no need to invoke the microbiome to come up with a general mechanism by which artificial sweeteners could have effects on those who eat them: you have t
by amluto 4y ago
There’s no need to invoke the microbiome to come up with a general mechanism by which artificial sweeteners could have effects on those who eat them: you have taste receptors in your digestive tract!
https://diabetesjournals.org/diabetes/article/62/10/3336/17466/How-Sweet-It-Is-Intestinal-Sweet-Taste-Receptors https://diabetesjournals.org/diabetes/article/62/10/3336/174...
- clnq 4y agoThanks for the very interesting article. But man, is it filled with needlessly complex language. > The upper gastrointestinal tract is well-endowed with taste and fat receptors, with sweet taste being detected, as elsewhere, by a heterodimer of the taste 1 receptor (T1R) family, T1R2/T1R3. These receptors have been localized to intestinal brush and enteroendocrine cells, and are coupled with α-gustducin as the α-subunit of the G protein (Fig. 1). They recognize sugars, d-amino acids, sweet proteins, and artificial sweeteners. Of importance to a possible role in the incretin response, these receptors are colocalized with glucagon-like peptide 1 (GLP-1) and L cells containing peptide YY (PYY) and K cells containing glucose-dependent insulinotropic polypeptide (GIP) (3). Incidentally, fatty acid responsive GPRs are also coupled to GLP-1 release, but are found predominantly in the colon (5). Can be restated in plain English: Cells in the GI tract between one's mouth and duodenum have similar sweet taste receptors - T1R. Some of these cells are endocrine and store GLP-1, PYY, and GIP (incretin) messenger hormones. For context, messenger hormones cause changes in cells receptive to them, including the nervous system. Indirectly, these hormones can affect metabolism and feeling of hunger or fullness (this is not in the paper but is known). The paper then discusses inconsistent (but meaningful) evidence for sweet taste receptors influencing the messenger hormone release and insulin-glycemia response. Notably, the author suggests sucralose sweeteners consumed before carbohydrates might spike postprandial (after-meal) blood sugar and insulin response. However, the extent of this effect could depend on an individual's genetics. The link between messenger hormone release and sweet taste receptors is established because this effect is diminished in vivo in mice lacking specific sweet taste receptors.
- bawolff 4y agoI'm not a biologist but that doesn't sound that complex for a science paper. Your average CS paper would have a similar level of complexity (if not worse)
- deleted 4y ago[deleted]
- clnq 4y agoGenerally, I don't particularly appreciate how unreadable academic articles are. It makes them ineffective at communicating their ideas. And worse - there are a lot of pieces where jargon is used as a substitute for content. Yes, it's not unexpectedly complex for a science paper. But like many academic papers, it is needlessly complex. As I've shown, you can mostly restate a technical paragraph with two plain English sentences. I often wonder - would it be that difficult to present academic writings in simple English, or at least to provide a plain English abstract? Publishing a paper takes months; what're the extra 10 minutes to make it more effective and readable?
- tsimionescu 4y ago> As I've shown, you can mostly restate a technical paragraph with two plain English sentences. You've taken a paragraph that contained a lot of details and was quite precise, and replaced it with wishy washy language. For example, they day that the cells they found are heterodimers of the T1R cells on your tongue, specifically T1R2/3. You replaced this precise explanation with the single word "similar", which could mean that they are enitrely different cells that are tautologically "similar" in also detecting sweet tastes. They were also explaining exactly what the cells detect, which you thought is not worthy of mention. The single short clear phrase "upper GI tract" you replaced with the longer and more akward "the part of the GI tract between the mouth and the duodenum". Overall, your phrase would sound more complex and awkward to a practitioner, and you have reduced the information significantly. There is a reason technical language is used in technical papers - it allows you to be concise, information dense, and precise.
- 4y ago