方法将小鼠随机分为7组，除正常对照组外，给予自然衰老及腹腔注射亚硝酸钠和地塞米松处置，给药组预防性给药。
Methods nature fade were divided into 7 groups. Sodium nitrite and dexamethasone were injection via abdominal, preventive drug was used in other normal control group.
我们需要预防性给予抗生素药物，包括合理的药物和给药途径，建议在手术前开始频繁使用第四代氟喹诺酮类抗生素眼药水滴眼。
We need to provide antibiotic prophylaxis with an appropriate agent and administration regimen. We recommend a fourth-generation fluoroquinolone started with frequent dosing before surgery.
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