After the researchers amputated their salamanders' legs, the legs regrew.

研究人员切断蝾螈的腿之后，这些腿重新长出来。

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One variation - known as AR-V7, was also prevalent in a select group of patients who had never taken hormone therapy, but whose cancer aggressively regrew after surgery to remove their tumors.

已知的AR-V7变异体也在一组筛选后患者群中高表达，这群患者从未经历内分泌治疗，但其肿瘤在手术切除后复发性强。

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