Background: The increase in breast cancer (BC) cases in young women is of great importance since the tumor behavior in this group is generally more aggressive than in their older counterparts, and strategies for early diagnosis and prognostication are needed. Therefore, this work sought to investigate prognostic markers associated with young (<44 years old) BC patients.

中文翻译：

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Ki67 和 p53 蛋白的表达：巴西年轻患者的乳腺癌侵袭性标志物

背景：年轻女性乳腺癌 (BC) 病例的增加非常重要，因为这一群体的肿瘤行为通常比老年女性更具侵袭性，因此需要早期诊断和预测策略。因此，这项工作旨在研究与年轻（<44 岁）BC 患者相关的预后标志物。