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We have studied the enantiospecificities of several fungal ( AKR3C1 , AKR5F and AKR5G ) and human ( AKR1B1 and AKR1B10 ) aldo - keto reductases in the production of alpha - hydroxy ketones and diols from vicinal diketones .
 alpha - hydroxy ketones, diols, vicinal diketones
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 alpha - hydroxy ketones, diols, vicinal diketones