Peptide YYhormone Peptide YY (PYY) is a fascinating gut hormone that plays a significant role in regulating appetite and influencing metabolic processes. This 36-amino acid peptide, primarily produced by L-cells in the distal gastrointestinal tract, is released in response to nutrient intake, particularly fats and carbohydrates, signaling satiety to the brainPeptide YY(PYY), a member of the pancreatic polypeptide family, has roles in gastric acid and pancreatic enzyme secretion and gastrointestinal motility .... Understanding PYY's function is crucial, as research increasingly links its levels to conditions like obesity and type 2 diabetes, exploring its potential as a therapeutic target.
The primary and most well-documented role of Peptide YY is its potent anorectic (appetite-suppressing) effectPeptide YY | Hormones. After a meal, PYY is released into the bloodstream and travels to the brain, where it acts on specific receptors, notably the neuropeptide Y (NPY) Y2 receptor. By binding to these receptors, PYY inhibits the activity of NPY neurons in the hypothalamus, a brain region critical for regulating food intake.作者：E Karra·2008·被引用次数：459—Several lines of evidence suggest that low circulating PYY concentrations predispose towards the development and or maintenance of obesity. Subjects with ... This action directly contributes to feelings of fullness and reduces the desire to eat, effectively promoting satiation. Studies have shown that higher circulating levels of PYY are associated with reduced food intake and body weight gain, suggesting a key role in preventing overeating.
Beyond its direct impact on appetite, Peptide YY is recognized as a pleiotropic gut hormone involved in broader metabolic regulation. Emerging research indicates that PYY also influences glucose metabolism.Peptide YY (3-36): Uses, Interactions, Mechanism of Action It can modulate both insulin and glucagon secretion, although the exact mechanisms and net effects are still under investigation. Furthermore, PYY has been implicated in regulating gastrointestinal motility and suppressing exocrine pancreatic secretion, further contributing to the complex digestive and metabolic cascade initiated by nutrient ingestion.
The relationship between Peptide YY and obesity is a subject of intense research. Several lines of evidence suggest that low circulating PYY concentrations may predispose individuals to the development and maintenance of obesity. Conversely, some studies have indicated that obese individuals might have altered PYY responses to meals. This has led to the exploration of PYY as a potential therapeutic agent for obesityPeptide YY in Type 2 Diabetes: A Complementary Gut .... Synthetic forms of PYY, particularly the PYY(3-36) fragment, are being evaluated for their efficacy in reducing appetite and promoting weight loss. While promising, the long-term effectiveness and safety of such interventions are still subjects of ongoing clinical investigation.
Peptide YY belongs to the broader family of pancreatic polypeptide hormones, which also includes pancreatic polypeptide (PP) and neuropeptide Y (NPY). These hormones share structural similarities and often interact with the same receptor family. PYY is particularly closely related to NPY, with which it shares sequential homology.2025年5月29日—Peptide YY(PYY) (1 - 36)：完整的PYY 分子，包含N 端的前两个氨基酸残基，与PYY (3 - 36) 相比，在体内的作用可能有所不同，其对不同受体的亲和力和 ... Interestingly, PYY is often co-secreted with glucagon-like peptide-1 (GLP-1), another crucial gut hormone involved in appetite regulation and glucose homeostasis.肽- 維基百科，自由的百科全書 The interplay between PYY and these other hormones is complex, and understanding these relationships is vital for a comprehensive view of metabolic control.2025年5月29日—Peptide YY(PYY) (1 - 36)：完整的PYY 分子，包含N 端的前两个氨基酸残基，与PYY (3 - 36) 相比，在体内的作用可能有所不同，其对不同受体的亲和力和 ...
Peptide YY is a vital gut hormone with a well-established role in signaling satiety and reducing food intakePeptide YY (3-36) (porcine)is a Y2 selective agonist. IC50 values are 0.11 and 1050 nM for inhibition of125I-PYY binding to Y2 and Y1 receptors respectively.. Its influence extends to broader metabolic functions, including glucose regulation and gastrointestinal activity. While its precise role in the pathogenesis of obesity and its potential as a therapeutic target are still being elucidated, ongoing research continues to deepen our understanding of this key regulator of appetite and metabolism.Peptide YY (PYY) (3-36), Porcine TFA ； - 楚肽生物科技 As scientific inquiry progresses, Peptide YY promises to remain a significant focus in the pursuit of better metabolic health strategies.
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