21909
As a major mechanism of central nervous system ( CNS ) metabolic control , we demonstrate that GCS - derived gangliosides interacting with leptin receptors ( ObR ) in the neuronal membrane modulate leptin - stimulated formation of signaling metabolites in hypothalamic neurons .
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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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