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Home > Anti-aging Research > PYY 3-36

Peripheral Hormone Peptide YY (PYY 3-36)

 

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Alternative News:

  • Eggs at Breakfast May Delay Hunger - WebMD, 5/11/12 - "researchers tracked 20 overweight or obese people, giving them either a breakfast containing eggs or cold cereal for one week. Although the breakfasts offered different protein foods, the meals themselves were equally matched in terms of calories, carbohydrates, protein, and fat ... people who had eggs in the morning felt fuller before lunch, and they also ate less food from the buffet compared to those who had cereal. Egg eaters also had lower levels of ghrelin and higher amounts of PYY3-36 during the three hours between breakfast and lunch. This suggests they felt less hungry and more satisfied between meals ... Long-term weight loss trials to compare the manipulation of protein quality without increasing protein quantity should be explored" - Note:  I fully agree.  I just seems very easy to keep my weight in check when I have eggs for breakfast.
  • Increased plasma PYY levels following supplementation with the functional fiber PolyGlycopleX in healthy adults - Eur J Clin Nutr. 2010 Jul 28 - "A variety of dietary fibers have been shown to alter satiety hormone gene expression and secretion. The objective of this study was to examine plasma satiety hormone concentrations in healthy subjects consuming either PolyGlycopleX (PGX) or control (skim milk powder) for 21 days ... Primary outcomes measured at three visits (V1, V2 and V3) were plasma active glucagon-like peptide-1 (GLP-1) total ghrelin, peptide YY (PYY) and insulin. Results: There was a significant effect of visit for fasting PYY with control participants experiencing decreased PYY levels over time while PGX prevented this decline. When stratified by body mass index (BMI), PGX increased fasting PYY levels from week 1 to week 3 compared with control in participants with BMI <23 kg/m(2). There was a significant effect of visit for fasting ghrelin with levels decreasing in both PGX and control groups over time. No differences were detected in fasting GLP-1 levels. Although there was a 14% reduction in fasting insulin between V1 and V3 with PGX this was not significantly different from control" - Note:  I don't know how they determine that a 14% reduction isn't significant.  See PGX at Amazon.com.
  • Exercise Suppresses Appetite By Affecting Appetite Hormones - Science Daily, 12/19/08 - "A vigorous 60-minute workout on a treadmill affects the release of two key appetite hormones, ghrelin and peptide YY, while 90 minutes of weight lifting affects the level of only ghrelin"
  • What makes people fat, why diets don't work, and what triggers appetite? - Dr. Murray's Natural Facts, 3/17/04 - "preliminary evidence indicates that PGX™ has powerful effects on reducing regulatory compounds that stimulate appetite like ghrellin while at the same time increasing the levels of regulatory compounds that block the appetite like PYY, CCK, and adiponectin. Further studies being conducted by Dr. Vuksan will likely show that PGX™ exerts powerful effects on these appetite regulators" - See PGX at Amazon.com PGX products.

Other News:

Abstracts:

  • Inhibition of Food Intake in Obese Subjects by Peptide YY3-36 - N Engl J Med. 2003 Sep 4;349(10):941-8 - "Caloric intake during a buffet lunch offered two hours after the infusion of PYY was decreased by 30 percent in the obese subjects (P<0.001) and 31 percent in the lean subjects (P<0.001). PYY infusion also caused a significant decrease in the cumulative 24-hour caloric intake in both obese and lean subjects. PYY infusion reduced plasma levels of the appetite-stimulatory hormone ghrelin"
  • The gut hormone peptide YY regulates appetite - Ann N Y Acad Sci. 2003 Jun;994:162-8
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