Neoadjuvant chemotherapy (NCT) is one of the main treatment strategies for patients with locally advanced breast cancer. In this study, we focused on the predictive and prognostic value of Ki-67 in triple-negative breast cancer (TNBC) patients who received NCT. Data from 280 patients with stage II-III TNBC were collected. All patients were treated according to the same protocol with weekly pacl...

The study aimed at determining levels of metallothionein (MT) and Ki-67 antigen expression in adenocarcinomas of large intestine and examining relation of the expression levels with various clinical and pathological variables. The studies were performed on 81 cases of large intestine adenocarcinoma. Using immunocytochemistry, expressions of MT (positive reaction in 73 cases) and of Ki-67 (posit...

PURPOSE To analyze the association between Ki-67 and eNOS expression with the pathological grades of patients with intracranial ependymomas, and to determine its value in distinguishing the progression of the disease. METHODS A clinicopathological study was undertaken in 82 patients with intracranial ependymomas. Tissue samples, obtained by tumour resection, were divided into three groups: lo...

OBJECTIVES Video-assisted thoracoscopic surgery (VATS) segmentectomy for small or early stage non-small cell lung cancer (NSCLC) remains controversial. Here, we investigated the clinical importance of predicting recurrence by Ki-67 in VATS segmentectomy for stage I NSCLC. METHODS In a retrospective study, 44 consecutive patients in p-stage I underwent VATS segmentectomy between September 2003...

Antigen Ki-67 is a non-histone nuclear protein, closely connected with cell proliferation. Determining Ki-67 allows for a quick and reliable evaluation of the growth fraction of the studied cell population. It serves as a marker of proliferative activity in neoplasms and other diseases with excessive cell proliferation such as psoriasis. Evaluation of Ki-67 expression in epidermal cells was per...

OBJECTIVES The aim of this study was to compare among PCNAand Ki-67 as the most reliable immunohistochemical marker for evaluating cell proliferation in ameloblastic tumors. STUDY DESIGN Observational, retrospective, and descriptive study of a large series of ameloblastic tumors, composed of 161 ameloblastomas and four ameloblastic carcinomas, to determine and compare PCNA and Ki-67 expressio...

Ki-67 has been widely used as an indicator of cell proliferation in gliomas. However, the role of Ki-67 as a prognostic marker is still undefined. Thus, we conducted a meta-analysis of the published literatures in order to clarify the impact of Ki-67 on survival in glioma cases. Eligible studies were identified in PubMed, EMBASE, ISI Web of Science, Cochrane Central Register of Controlled Trial...

This study was to investigate the prognostic role of Ki-67 in further classification of triple negative breast cancer (TNBC), and to test whether high expression level of Ki67 can predict benefit from carboplatin. From January 2004 to December 2012, 363 patients operated for TNBC were identified through the institutional clinical database. After a median follow-up time of 34 months (5.2-120.0 m...

PURPOSE This article examines as to whether the Ki-67 index may be useful as a marker for cell proliferation, as well as to whether Ki-67 immunohistochemical expression and parathyroid hormone (PTH) levels are useful in distinguishing between parathyroid carcinoma (PC) and adenoma. METHODS A retrospective analysis of 50 patients (10 with PC and 40 with adenoma) who had been previously diagnos...

The present study is to investigate the differences in Ki-67 expression and microvessel density (MVD) among cerebral schistosomiasis, low grade gliomas and high grade gliomas. Expressions of Ki-67 and CD34 in surgical specimens from 12 cases of cerebral schistosomiasis lesions, 12 cases of low grade gliomas and 12 cases of high grade glioma were detected by streptavidin-perosidase immunohistoch...