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author:("Noh, many")
1.  Longer Survival in Patients with Breast Cancer with Cyclin D1 Over-Expression after Tumor Recurrence: Longer, but Occupied with Disease 
Journal of Breast Cancer  2014;17(1):47-53.
Purpose
The effect of cyclin D1 overexpression on breast cancer outcomes and prognosis is controversial, even though amplification of the cyclin D1 gene, CCND1, has been shown to be associated with early relapse and poor prognosis. In this study, we examined the relationship between cyclin D1 overexpression and disease-specific survival (DSS). We also analyzed survival in patients who experienced recurrence.
Methods
We retrospectively analyzed data from patients diagnosed with ductal carcinoma between April 2005 and December 2010. We examined clinicopathologic factors associated with cyclin D1 overexpression and analyzed the influence of cyclin D1 on recurrence-free survival and DSS.
Results
We identified 236 patients diagnosed with primary breast cancer who completed all phases of their primary treatment. Cyclin D1 overexpression was significantly associated with longer DSS (5-year DSS, 89.9% in patients without cyclin D1 overexpression vs. 98.9% in patients with cyclin D1 overexpression; p=0.008). Multivariate analysis also found that patients with cyclin D1 overexpressing tumors had significantly longer disease-specific survival than patients whose tumors did not overexpress cyclin D1, with a hazard ratio for disease-specific mortality of 7.97 (1.17-54.22, p=0.034). However, in the group of patients who experienced recurrence, cyclin D1 overexpression was not significantly associated with recurrence-free survival. Cyclin D1 overexpression was significantly associated with increased survival after disease recurrence, indicating that cyclin D1 overexpression might be indicative of more indolent disease progression after metastasis.
Conclusion
Cyclin D1 overexpression is associated with longer DSS, but not recurrence-free survival, in patients with breast cancer. Longer postrecurrence survival could explain the apparent inconsistency between DSS and recurrence-free survival. Patients with cyclin D1-overexpressing tumors survive longer, but with metastatic disease after recurrence. This information should spark the urgent development of tailored therapies to cure these patients.
doi:10.4048/jbc.2014.17.1.47
PMCID: PMC3988342  PMID: 24744797
Breast neoplasms; Cyclin D1; Disease-specific survival; Recurrence
2.  Usefulness of Pretreatment Neutrophil to Lymphocyte Ratio in Predicting Disease-Specific Survival in Breast Cancer Patients 
Journal of Breast Cancer  2013;16(1):55-59.
Purpose
The purpose of this study was to investigate the prognostic impact of pretreatment neutrophil to lymphocyte ratio (NLR) on breast cancer in view of disease-specific survival and the intrinsic subtype.
Methods
We retrospectively studied patients diagnosed with primary breast cancer that had completed all phases of primary treatment from 2000 to 2010. The association between pretreatment NLR and disease-specific survival was analyzed.
Results
A total of 442 patients were eligible for analysis. Patients with higher NLR (2.5 ≤NLR) showed significantly lower disease-specific survival rate than those with lower NLR (NLR <2.5). Higher NLR along with negative estrogen receptor status and positive nodal status were independently correlated with poor prognosis, with hazard ratio 4.08 (95% confidence interval [CI], 1.62-10.28), 9.93 (95% CI, 3.51-28.13), and 11.23 (95% CI, 3.34-37.83), respectively. Luminal A subtype was the only intrinsic subtype in which higher NLR patients showed significantly poor prognosis (87.7% vs. 96.7%, p=0.009).
Conclusion
Patients with an elevated pretreatment NLR showed poorer disease-specific survival than patients without elevated NLR, most evident in the luminal A subtype. Further validation and a feasibility study are required before it can be considered for clinical use.
doi:10.4048/jbc.2013.16.1.55
PMCID: PMC3625770  PMID: 23593082
Breast neoplasms; Lymphocytes; Neutrophils
3.  The diagnostic values of preoperative laboratory markers in children with complicated appendicitis 
Purpose
Accurate diagnosis and optimal management of acute appendicitis, despite being the most common surgical emergency encountered in emergency departments, is often delayed in pediatric patients due to nonspecific symptoms and communication barriers, often leading to more complicated cases. The aim of this study is to investigate the diagnostic significance of common laboratory markers.
Methods
A total of 421 patients aged 15 and younger underwent surgical treatment for acute appendicitis. We conducted a retrospective analysis for white blood cell (WBC), C-reactive protein (CRP) and bilirubin. All patients were classified into simple or complicated appendicitis groups based on postoperative histology.
Results
The mean age of the patients in the complicated appendicitis group was younger than that in the simple group (P = 0.005). WBC, CRP and bilirubin levels were significantly higher in the complicated appendicitis group (P < 0.001, <0.001, 0.002). The relative risk for complicated appendicitis was calculated using age, WBC, CRP and bilirubin. Elevated CRP levels were associated with the highest risk for complicated appendicitis (hazard ratio [HR], 2.53; 95% confidence interval [CI], 1.38 to 4.65) followed by WBC (HR, 2.42; 95% CI, 1.07 to 5.46) and bilirubin (HR, 2.04; 95% CI, 1.09 to 3.82). The most sensitive markers for diagnosing complicated appendicitis were WBC (95.2%) and CRP (86.3%). Bilirubin levels showed the highest specificity at 74.8%.
Conclusion
The risk of complicated appendicitis was significantly higher in patients younger than 10 years old. Preoperative WBC, CRP and bilirubin have clinical value in diagnosing complicated appendicitis with a HR of 2.0 to 2.5. Our results suggest that the utilization of WBC, CRP, and bilirubin can assist in the diagnosis of complicated appendicitis in pediatric patients, allowing prompt diagnosis and optimal management.
doi:10.4174/jkss.2012.83.4.237
PMCID: PMC3467390  PMID: 23091796
Appendicitis; Child; Leukocytes; C-reactive protein; Bilirubin

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