SwePub
Sök i LIBRIS databas

  Extended search

onr:"swepub:oai:DiVA.org:umu-22369"
 

Search: onr:"swepub:oai:DiVA.org:umu-22369" > Fasted to fed traff...

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Fasted to fed trafficking of fatty acids in human adipose tissue reveals a novel regulatory step for enhanced fat storage.

Ruge, Toralph (author)
Umeå universitet,Kirurgi
Hodson, Leanne (author)
Cheeseman, Jane (author)
show more...
Dennis, A Louise (author)
Fielding, Barbara A (author)
Humphreys, Sandy M (author)
Frayn, Keith N (author)
Karpe, Fredrik (author)
show less...
 (creator_code:org_t)
The Endocrine Society, 2009
2009
English.
In: The Journal of clinical endocrinology and metabolism. - : The Endocrine Society. - 1945-7197 .- 0021-972X.
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • Context: Absence or excess of adipose tissue are both associated with metabolic complications implying the importance of well-functioning adipose tissue present in normal amounts. Adipose tissue sequesters dietary fat and thus protects other tissues from excess fat exposure, especially following meals. Objective: Use of an integrative physiological technique to quantify trafficking of fatty acids (FA) in adipose tissue over a 24-h period. Methods: Adipose tissue FA handling was studied in response to three meals in eight healthy men by the combination of arterio-venous blood sampling, tissue blood flow, and specific labelling of FA tracing of exogenous and endogenous fat by stable isotope methodology. Results: The efficiency of adipose tissue FA uptake increased robustly with each meal. Chylomicron-triglyceride (TG) was the dominating source of FA. Adipose tissue fractional extraction of chylomicron-TG increased from 21+/-4 to 47+/-8% (p=0.03) between the first and last meal. Although adipose tissue lipoprotein lipase (LPL) action increased with time (2-fold), there was an even greater increase in FA re-esterification (3-fold), which led to a reduced spillover of chylomicron-derived FA, from 77+/-15 to 34+/-7% (p=0.04) comparing the end of the first and the third meal period. Increased uptake of VLDL-derived FA was observed, but spillover of VLDL-derived FA was only seen in the fasting state. Conclusion: Human adipose tissue has a significant potential to up-regulate fat storage during a normal day that goes beyond increased LPL activation. The adaptation towards increasing fat storage may provide an explanation for the beneficial properties of normal amounts of adipose tissue.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Kirurgi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Surgery (hsv//eng)

Publication and Content Type

ref (subject category)
art (subject category)

Find in a library

To the university's database

  • 1 of 1
  • Previous record
  • Next record
  •    To hitlist

Search outside SwePub

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Close

Copy and save the link in order to return to this view