Local cryoanalgesia is effective for tail-tip biopsy in mice.

Abstract excerpt

Tail-tip biopsy for genotyping of genetically modified mice older than 21 d typically is performed by using isoflurane anesthesia. Isoflurane-induced changes in behavior and metabolism can result in unexpected complications and death. We investigated whether cryoanalgesia by using ethylene chloride spray would be an effective local anesthetic for tail-tip biopsies in mice. C57BL/6J mice were allocated randomly...

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