Animals
Female BLAB/c mice were purchased from Nanjing Medical University and
were bred in Nanjing Drum Tower Hospital. All mice were nurtured in
ventilated cages and had free access to water and food. The protocols
were approved by the Animal Care and Use Committee of Nanjing Medical
University and animals were treated following the National Institutes of
Health Guide for the Care and Use of Laboratory Animals. All operations
were carried out in accordance with the approved procedures.