leptin

noun
lep·​tin | \ ˈlep-tən How to pronounce leptin (audio) \

Definition of leptin

: a peptide hormone that is produced by fat cells and plays a role in body weight regulation by acting on the hypothalamus to suppress appetite and burn fat stored in adipose tissue

Examples of leptin in a Sentence

Recent Examples on the Web Some researchers have also suggested that irregular levels of hormones associated with obesity, like glucose-regulating adiponectin and weight-regulating leptin, compromise immune responses to the virus. Chin Jou, Scientific American, "Another Misguided 'War' on Obesity," 23 Aug. 2020 Further studies revealed that a hormone called leptin, responsible for appetite suppression, is regulated by the circadian clock. New York Times, "Circadian Rhythms: The Conductor of Our Body’s Symphony," 7 May 2020 A year later, blood samples were collected from the patients for analysis of fasting and postprandial levels of ghrelin, leptin, peptide YY, amylin and other hormones. Daniel Engber, Scientific American, "Unexpected Clues Emerge About Why Diets Fail," 13 Jan. 2020 Also implicated is the hormone leptin, which is released by fat cells and is responsible for feelings of satiety. Jeffrey Kluger, Time, "Food Addictions Are Real Addictions—And More And More People Are Getting Hooked," 6 Nov. 2019 Nobody mentions leptin or insulin or carbohydrate metabolism. Tamar Haspel, Washington Post, "Why you should be skeptical about diets tailored for your DNA," 21 Oct. 2019 The researchers next repeated the procedure, but in mice that had been bred to produce very little leptin. Gretchen Reynolds, New York Times, "How Our Bones Might Help Keep Our Weight in Check," 17 Jan. 2018 Consistently logging eight hours of sleep a night can help boost low testosterone levels and have a positive impact on cortisol, leptin and insulin levels. Christy Brissette, Washington Post, "What are ‘hormone diets’ — and can they really help you lose weight quickly?," 5 Aug. 2019 As a result, leptin gets unblocked—sometimes in as little as a week, resulting in an end to ‘insatiable hunger’ and compulsive grazing. Stephanie Walden, USA TODAY, "Brain scientists identify a new kind of hunger that makes us overeat," 11 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'leptin.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of leptin

1995, in the meaning defined above

History and Etymology for leptin

Greek leptos slender + English -in entry 1

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Time Traveler for leptin

Time Traveler

The first known use of leptin was in 1995

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Statistics for leptin

Last Updated

6 Sep 2020

Cite this Entry

“Leptin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leptin. Accessed 20 Oct. 2020.

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More Definitions for leptin

leptin

noun
lep·​tin | \ ˈlep-tən How to pronounce leptin (audio) \

Medical Definition of leptin

: a peptide hormone that is produced by fat cells and plays a role in body weight regulation by acting on the hypothalamus to suppress appetite and burn fat stored in adipose tissue

More from Merriam-Webster on leptin

Britannica.com: Encyclopedia article about leptin

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