Complex sentence: The general area of his lab's research focuses on the endocrine system, in particular the enzyme aromatase, and his lab has synthesized a number of aromatase inhibitors using equine aromatase as a model.
Split into simpler sentences: The general area of his lab's research focuses on the endocrine system, in particular the enzyme aromatase. His lab has synthesized a number of aromatase inhibitors using equine aromatase as a model.