29319
Maternal exposure to nicotine during lactation causes hyperleptinemia in the pups and , at adulthood , these animals are overweight and hyperleptinemic , while , in their hypothalamus , the leptin signaling pathway is reduced , evidencing a central leptin resistance .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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