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leptin

American  
[lep-tin] / ˈlɛp tɪn /

noun

  1. a hormone that is thought to suppress appetite and speed up metabolism.


leptin British  
/ ˈlɛptɪn /

noun

  1. a protein, produced by fat cells in the body, that acts on the brain to regulate the amount of additional fat laid down in the body

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

leptin Scientific  
/ lĕptĭn′ /
  1. A peptide hormone and neurotransmitter produced by fat cells and involved in the regulation of appetite.


Etymology

Origin of leptin

1995–2000; < Greek leptós small, thin + -in 2

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As to the science behind this, Dr Jenkinson points to the role of leptin, a hormone produced by fat cells.

From BBC

At least that's how leptin should work.

From BBC

This is because the leptin signal shares a signalling pathway with insulin.

From BBC

"So if insulin levels are too high, it actually then dilutes the leptin signal and suddenly the brain can't sense how much fat is stored."

From BBC

Sedentary rats on the cafeteria diet had sharply higher insulin and leptin levels, but these elevations were significantly reduced in those that exercised.

From Science Daily