Effect of functional variant rs11466313 on breast cancer susceptibility and TGFB1 promoter activity.

Purpose: This study aimed to investigate whether genetic polymorphisms in TGFB1 contribute to breast cancer (BC) susceptibility, and explore the mechanism of action.

Methods: A total of 7 tagging SNPs (tSNPs) were genotyped in 1161 BC cases and 1337 age-matched controls among Chinese Han population. Bioinformatics analysis was used to predict functional SNP closely linked to tSNPs.

Associations of gene‑wide SNPs in SNAI1 and TWIST1 with breast cancer and ovarian cancer susceptibility among Chinese Han women.

Extensive evidence suggests that the genetic etiologies of breast cancer (BC) and ovarian cancer (OC) show a certain degree of similarity. This study aimed to find out whether the single nucleotide polymorphisms (SNPs) of genes SNAI1 and TWIST1 may affect BC and OC susceptibility. A total of 7 tagging‑SNPs (tSNPs) were directly genotyped in 1,161 BC cases, 286 OC cases and 1,273 cancer‑free controls among Chinese Han women.

Association of Genetic Polymorphisms in CDH1 and CTNNB1 with Breast Cancer Susceptibility and Patients' Prognosis among Chinese Han Women.

This study aims to investigate whether the germline variants in CDH1 and CTNNB1 would affect breast cancer susceptibility and patients' prognosis among Chinese Han women using a haplotype-based association analysis. We genotyped 12 haplotype-tagging single nucleotide polymorphisms (htSNPs) in CDH1 and CTNNB1 among 1,160 BC cases and 1,336 age-matched cancer-free controls using the TaqMan® Genotyping Assay. For association analyses of germline variants with breast cancer susceptibility, the results showed that rs7200690, rs7198799, rs17715799, rs13689 and diplotype CGC/TGC (rs7200690 + rs12185157 + rs7198799) in CDH1 as well as rs2293303 in CTNNB1 were associated with increased breast cancer risk.

[Survival analysis for different molecular subtypes of breast cancers after treatment].

Objective: To explore the survival status after treatment for patients with different molecular subtypes of breast cancers.

Methods: A total of 4491 patients with invasive breast cancer from January 2000 to July 2011 were retrospectively recruited to receive pathological verification and treatment at our clinic. According to the immunohistochemical results of hormone receptor (HR) and human epidermal growth factor receptor 2 (HER2), they were assigned into 3 groups of HR+/HER2-, HER2+ and HR-/ HER2-.

[Safety of omitting axillary lymph node dissection in primary breast cancer patients with negative sentinel lymph nodes].

Objective: To explore the safety of omitting axillary lymph node dissection (ALND) in primary invasive breast cancer patients with negative sentinel lymph nodes (SLN).

Methods: Between June 2005 and June 2011, all SLN negative patients omitting ALND were analyzed retrospectively. They were all primary invasive breast cancer patients without clinic cytological evidence of axillary node involvement.

Association study of germline variants in CCNB1 and CDK1 with breast cancer susceptibility, progression, and survival among Chinese Han women.

The CCNB1 and CDK1 genes encode the proteins of CyclinB1 and CDK1 respectively, which interact with each other and are involved in cell cycle regulation, centrosome duplication and chromosome segregation. This study aimed to investigate whether the genetic variants in these two genes may affect breast cancer (BC) susceptibility, progression, and survival in Chinese Han population using haplotype-based analysis. A total of ten tSNPs spanning from 2kb upstream to 2kb downstream of these genes were genotyped in 1204 cases and 1204 age-matched cancer-free controls.

[Analysis of associations between molecular subtypes and responses to neoadjuvant chemotherapy in primary breast cancer patients].

Objective: To explore the correlations between molecular subtypes and responses to neoadjuvant chemotherapy in primary breast cancer patients.

Methods: The core-needle biopsy specimens were collected from 563 patients undergoing 4-8 cycles of neoadjuvant chemotherapy between January 2001 to January 2009. And immunohistochemical assays were employed to detect the levels of estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER2) and Ki-67 proliferation index simultaneously.

[Diagnostic value and health economic evaluation of ultrasound-combined fine-needle aspiration cytology in primary breast cancer].

Objective: To explore the diagnostic value and health economic evaluation of ultrasound-combined fine-needle aspiration cytology for axillary lymph node status in breast cancer.

Methods: We reviewed retrospectively collected the data from 2503 cases of biopsy-proved breast cancer (T0-2) at our breast center between May 2005 and June 2010. The diagnostic fees of ultrasound-combined fine-needle aspiration cytology and clinical examination were calculated and assessed with cost-minimization analysis.

Association of germline variation in CCNE1 and CDK2 with breast cancer risk, progression and survival among Chinese Han women.

Background: Somatic alterations of cyclin-dependent kinase 2 (CDK2)-cyclin E complex have been shown to contribute to breast cancer (BC) development and progression. This study aimed to explore the effects of single nucleotide polymorphisms (SNPs) in CDK2 and CCNE1 (a gene encoding G1/S specific cyclin E1 protein, formerly called cyclin E) on BC risk, progression and survival in a Chinese Han population.

Methodology/principal Findings: We herein genotyped 6 haplotype-tagging SNPs (htSNPs) of CCNE1 and 2 htSNPs of CDK2 in 1207 BC cases and 1207 age-matched controls among Chinese Han women, and then reconstructed haplotype blocks according to our genotyping data and linkage disequilibrium status of these htSNPs.

Genetic polymorphisms in centrobin and Nek2 are associated with breast cancer susceptibility in a Chinese Han population.

Centrosome aberrations have been suggested to cause chromosomal instability and aneuploidy, and eventually promote cancer development. The Centrobin and Nek2 proteins interact with each other and both are involved in centrosome duplication and chromosome segregation. This study aimed to investigate whether genetic polymorphisms in these two genes may affect breast cancer susceptibility in Chinese Han population using a haplotype-based analysis.

[Morphology-based criteria for ultrasonic assessment of axillary lymph node status in primary breast cancer].

Objective: To evaluate the morphology-based criteria for the ultrasonic assessment of axillary lymph node in primary breast cancer.

Methods: A total of 2256 T0-2N0 patients underwent axillary ultrasound preoperatively. Lymph nodes were classified as normal if no node was found or cortex thickness was even and < 3 mm; abnormal, (1) if cortex thickness was even but ≥ 3 mm or (2) focally thickened cortex ≥ 3 mm or (3) fatty hilum was absent.

[Efficacy analysis of THP-containing regimens as neoadjuvant and adjuvant chemotherapy for primary breast cancer].

Objective: To evaluate the effect of anthracycline pirarubicin-based regimen in association with different ways of fluorouracil (5-Fu) as neoadjuvant and adjuvant chemotherapy for primary breast cancer.

Methods: Two hundred and eighty-nine primary breast cancer patients who were to be operated, two to eight cycles of pirarubicin in association with cyclophosphamide and 5-Fu (CTF or CTFci regimen) were given before operation. The pathological response rate, effect and its relation with the infusion routes of 5-Fu were analyzed.

[Impact of response of positive axillary nodes to neoadjuvant chemotherapy on breast cancer survival].

Objective: To compare the distant disease-free survival between breast cancer patients with nodal pathological complete response (pCR) and those with nodal residual disease (RD) after neoadjuvant chemotherapy.

Methods: The clinical and pathological data of 376 needle biopsy proved node positive breast cancer patients undergoing neoadjuvant chemotherapy were retrospectively analyzed.

Results: The median follow-up time was 24 months (range: 5 - 100).

[Clinicopathologic characteristics and prognosis in young Chinese women with breast cancer].

Objective: To analyze the clinicopathologic characteristics and evaluate the prognosis in young Chinese women with breast cancer.

Methods: A total of 1538 female patients with operable primary breast cancer (stage I-III) treated at our hospital from December 1994 to December 2003 were analyzed retrospectively. Among them, 1075 patients (≤ 60 yrs) with the complete follow-up data were divided into two groups according to age: young breast cancer group (≤ 40 yrs, n = 208) and control group (41 - 60 yrs, n = 867) to analyze the differences in their clinicopathologic characteristics and evaluate the prognosis of both groups.

Breast cancer subtypes and survival in chinese women with operable primary breast cancer.

Objective: To investigate the associations between the different breast cancer subtypes and survival in Chinese women with operable primary breast cancer.

Methods: A total of 1538 Chinese women with operable primary breast cancer were analyzed in this study, the median follow-up was 77 months. Estrogen receptor (ER), progesterone receptor (PR), and HER2 status were available for these patients.

Current status of diagnosis and treatment of primary breast cancer in beijing, 2008.

Objective: To investigate the status of diagnosis and treatment of primary breast cancer in Beijing, 2008.

Methods: All the patients who were diagnosed as primary breast cancer in Beijing in 2008 were enrolled in this study. Information of these patients, including the features of tumors, clinical diagnosis and treatment was collected, and filled in the well-designed questionnaire forms by trained surveyors.

[The clinical research of local recurrence after breast-conserving therapy for breast cancer].

Objective: To compare and analyze the data of breast cancer recurrence after breast-conserving therapy (BCT), and to find high risk factors that can affect local recurrence.

Methods: A total of 1034 patients in the data base between January 2000 and June 2008 were analyzed retrospectively. The patients aged 23 to 94 years when diagnosed (median age, 48 years).

[Different influence of Her-2 expression on the prognosis in node-positive and node-negative breast cancer].

Objective: To investigate the prognostic significance of Her-2 expression in node-positive and node-negative breast cancer in Chinese women.

Methods: The Her-2 expression in breast cancers from 981 patients was detected by immunohistochemistry with anti-Her-2 (CB11) monoclonal antibody. The survival curves were analyzed by Kaplan-Meier method, and Cox regression model was applied to determine whether this factor is an independent predictor of survival in multivariate analysis.

Weekly paclitaxel improved pathologic response of primary chemotherapy compared with standard 3 weeks schedule in primary breast cancer.

The purpose of this study is to compare the efficacy of weekly paclitaxel to every-3-week schedule in terms of pathologic response and toxicity which caused treatment delay in primary chemotherapy of breast cancer. After pretreatment of two cycles of cyclophosphamide/ pirarubicin/ fluorouracil (cyclophosphamide 500 mg/m(2) days 1, 8; pirarubicin 35 mg/m(2) days 1, 8; 5-Fu 200 mg/m(2) day ci day 1-28, every 4 weeks), 219 women with histologically confirmed T(1-3) N(0-2) M(0) invasive breast cancer, whose vertical diameters production of breast tumor reduced not more than 75%, were randomized to receive four cycles of Pq3wC (arm A: paclitaxel 175 mg/m(2) day 1, carboplatin AUC 6 d1, every 3 weeks) or Pq1wC (arm B: paclitaxel 60 mg/m(2) days 1, 8, 15, carboplatin AUC 6 day 1 for every 3 weeks) before surgery, stratified by partial or no response (stable disease and progression of disease) evaluated by ultrasonography. Pathologic response of the primary tumor was assessed by using Miller and Payne grading system.

[Feasibility of predicting pathological evaluation by ultrasonic evaluation in initial stage of neoadjuvant chemotherapy for primary breast cancer].

Objective: To investigate the correlation between change of tumor size after 2 cycles of neoadjuvant chemotherapy and pathological evaluation after 4 cycles of neoadjuvant chemotherapy. And to evaluate the feasibility of predicting pathological evaluation by ultrasonic evaluation in the initial stage of neoadjuvant chemotherapy for primary breast cancer.

Methods: Retrospective analysis was performed in women with primary breast cancer, including 138 patients receiving 4 cycles of anthracycline-based neoadjuvant chemotherapy (CTX500 mg/m(2), D1, D8 Q28D; THP35 mg/m(2), D1, D8 Q28D; 5-Fu200 mg/m(2)/day.

[Adsorption of Pb2+ onto chitosan-grafted-poly (acrylic acid )/sepiolite composite].

A composite adsorbent chitosan-grafted-poly(acrylic acid)/sepiolite was prepared, and its pH-dependence for removing Pb2+, as well as adsorption isotherm and kinetics were estimated. The results indicate that poly (acrylic acid) has been grafted onto the backbone of chitosan, forming an organic-inorganic composite adsorbent. As-prepared adsorbent shows a coarse, porous and accidented surface, which can contribute to its adsorption kinetics.

[Correlation of BRCA1 and APC aberrant methylation with the response to anthracycline-based neoadjuvant chemotherapy in primary breast cancer].

Objective: To investigate the correlation of hypermethylation of BRCA1 and APC gene promoters with the response to anthracycline-based neoadjuvant chemotherapy in primary breast cancer.

Methods: One hundred and forty patients with primary breast cancer received anthracycline-based neoadjuvant chemotherapy, and pretreatment hypermethylation status of BRCA1 and APC genes promoters was detected by methylation-specific PCR.

Results: Of the 140 patients, 30 (21.

[Prognostic role of apoptosis-related gene Fas-1377 and -670 polymorphisms in breast cancer].

Objective: To investigate the correlations between Fas-1377 and -670 polymorphisms and survival in Chinese women with breast cancer.

Methods: Polymerase chain reaction-restriction fragment length polymorphism assay (PCR-RFLP) was used to detect the polymorphism of Fas gene in 310 breast cancer patients with a long-term follow-up (median 10.5 years, range 0.

[Management of non-malignant results in core needle biopsy of breast lesions].

Objective: To study the strategy of management of non-malignant results in core needle biopsy (CNB) of breast lesions.

Methods: Consecutive 2654 breast lesions underwent CNB with 14-gauge automated needles. 1130 lesions with diagnosis of non-malignant breast lesions examined by CNB were followed up.