2094
The present study aimed to explore the possible regulation of NADPH - diaphorase activity by oestradiol in neurones of the supraoptic ( SON ) and paraventricular ( PVN ) nuclei and the role of oestrogen receptors ( ER alpha and ER beta ) in this regulation .
 Chemical: NADPH; Chemical: oestradiol; Chemical: oestrogen
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: NADPH; Chemical: oestradiol; Chemical: oestrogen