Abstract:
BACKGROUND:Reactive oxygen species (free radicals) play an important role in carcinogenesis. Extensive antioxidant defense mechanisms counteract free radicals in mammalian cells. Oxidative stress is a disturbance in the balance between the production of free radicals and antioxidant defenses. There is direct evidence that oxidative stress and lipid peroxidation (LPO) are linked to the etiology of breast cancer. The increasing global incidence of breast cancer emphasizes the need to understand the various mechanisms involved in breast tumorigenesis. The present study was undertaken to investigate the oxidative stress and antioxidant status in the blood samples of patients with breast cancer. METHODS:The present study was based on 23 women who were surgically treated at Gazi University, Faculty of Medicine, Department of General Surgery. The malondialdehyde (MDA) levels as an index of LPO along with the examination of superoxide dismutase (SOD) activities and advanced oxidation protein product (AOPP) and thioredoxin (Trx) levels were determined in the blood samples of 23 patients with breast cancer and 13 healthy controls. RESULTS:MDA, AOPP, and Trx levels and SOD activities were significantly higher in patients with breast cancer than the controls. CONCLUSIONS:The results showed that oxidative stress may be related to breast cancer and especially some molecules, such as Trx and AOPP, may be useful biomarkers in breast cancer diagnosis and treatment. More detailed knowledge related to the pathophysiology of these molecules could provide valuable information on the origin and development of malignant tumors, such as breast cancer.
journal_name
Ann Surg Oncoljournal_title
Annals of surgical oncologyauthors
Kilic N,Yavuz Taslipinar M,Guney Y,Tekin E,Onuk Edoi
10.1245/s10434-014-3859-3subject
Has Abstractpub_date
2014-12-01 00:00:00pages
4139-43issue
13eissn
1068-9265issn
1534-4681journal_volume
21pub_type
杂志文章abstract:BACKGROUND:The 1998 post-operative radiotherapy meta-analysis for lung cancer showed a survival detriment associated with radiation for stage I-II resected non-small cell lung cancer (NSCLC), but has been criticized for including antiquated radiation techniques. We analyzed the National Cancer Database (NCDB) to determ...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-017-5786-6
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:Occult breast cancer (OBC) is a rare clinical entity. Current surgical management includes axillary lymphadenectomy (ALND) with or without mastectomy. We sought to investigate the role of sentinel lymph node biopsy (SLNB) in patients with OBC treated with neoadjuvant chemotherapy (NAC). METHODS:Patients wit...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-020-08227-w
更新日期:2020-06-01 00:00:00
abstract:BACKGROUND:A suitable treatment strategy for esophageal cancer after definitive chemoradiotherapy for T4 cases has not been established and remains unclear. This study aimed to clarify the independent prognostic factors, surgical indications, and optimal extent of lymphadenectomy for T4 esophageal cancer. METHODS:Of 8...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-018-7074-5
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:We conducted a phase I clinical trial to evaluate the sensitivity, specificity, and safety of cytoreductive surgery (CRS) under aminolevulinic acid-mediated photodynamic diagnosis (ALA-PDD) plus hyperthermic intraperitoneal chemotherapy (HIPEC) on 20 patients with peritoneal carcinomatosis (PC) from ovarian ...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-014-3901-5
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND:The National Cancer Data Base (NCDB) is a large, geographically diverse hospital-based cancer registry that has been used to study factors related to cancer diagnosis, treatment, and survival. The primary purpose of this study was to compare the case counts and characteristics of patients in NCDB with popula...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-013-2901-1
更新日期:2013-06-01 00:00:00
abstract:BACKGROUND:Persistent/recurrent primary hyperparathyroidism (pHPT) occurs frequently in multiple endocrine neoplasia type 1 (MEN1). We assessed the usefulness of intraoperative PTH (IOPTH) and preoperative localizing studies based on the outcome of patients with MEN1-associated pHPT undergoing reoperative surgery. MET...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-016-5467-x
更新日期:2016-12-01 00:00:00
abstract::Lymph node status is the most reliable prognostic indicator for patients with melanoma and breast cancer. Because it is the first node draining the primary cancer, the sentinel lymph node (SLN) is most likely to harbor metastatic cancer cells. The Breslow thickness of the primary melanoma and the size of primary breas...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1007/BF02523627
更新日期:2004-03-01 00:00:00
abstract:BACKGROUND:Intraperitoneal chemotherapy is used to treat peritoneal surface-spreading malignancies. We sought to determine whether volume and surface area of the intraperitoneal chemotherapy compartments are associated with overall survival and posttreatment glomerular filtration rate (GFR) in malignant peritoneal meso...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-013-2976-8
更新日期:2013-12-01 00:00:00
abstract:BACKGROUND:Although hepatocellular carcinoma (HCC) is one of the commonest cancers worldwide, the underlying molecular mechanisms contributing to hepatocarcinogenesis are still not clear. METHODS:In this study, we performed double array analysis, consisting of both expression profiling and karyotyping analysis using s...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-009-0790-0
更新日期:2010-03-01 00:00:00
abstract:BACKGROUND:0.6-12.7% of patients with primary cutaneous melanoma will develop additional melanomas. Pathologic features of tumors in patients with multiple primary cutaneous melanomas have not been well described. In this large, international, multicenter, case-control study, we compared the clinicopathologic features ...
journal_title:Annals of surgical oncology
pub_type: 杂志文章,多中心研究
doi:10.1245/s10434-011-2058-8
更新日期:2012-03-01 00:00:00
abstract:INTRODUCTION:The clinical significance of isolated tumor cells (ITC) in peripheral blood (PB) and bone marrow (BM) as predictive markers in the recurrence or metastasis of breast cancer has not yet been determined. In the current study, we focused on the urokinase plasminogen activator receptor (u-PAR) gene as a powerf...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-009-0465-x
更新日期:2009-07-01 00:00:00
abstract:INTRODUCTION:Primary pancreatic lymphoma (PPL) is a rare tumor that is often misdiagnosed. Clinicopathologic features, optimal therapy, and outcomes are not well defined. We reviewed our institutional experience with PPL. METHODS:Search of our institutional database identified that between 1987-2012, 21,760 patients w...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-014-4176-6
更新日期:2015-04-01 00:00:00
abstract:BACKGROUND:There are many theoretical advantages that a minimally invasive approach to the pancreaticoduodenectomy might offer patients with benign and malignant disease of the head of the pancreas over traditional open techniques, including improved recovery time, decreased hospital stay, and earlier initiation of and...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-011-2045-0
更新日期:2012-03-01 00:00:00
abstract::In 2009, 2 single-institution studies from the United States reported increasing mastectomy rates during the last decade. We have recently reported unilateral mastectomy trends from a European database and demonstrated a significant trend of decreasing mastectomy rates from 38.1 % in 2005 to 13.1 % in 2010. A recent s...
journal_title:Annals of surgical oncology
pub_type: 社论
doi:10.1245/s10434-013-2982-x
更新日期:2013-07-01 00:00:00
abstract:BACKGROUND:Primary extended resection has been proposed as the initial treatment for patients with retroperitoneal sarcoma. This approach comprises an extended en-bloc resection of the directly infiltrated organs and adjacent uninvolved organs. The results of such radical surgery have yet to be validated. This retrospe...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-015-4380-z
更新日期:2015-10-01 00:00:00
abstract:BACKGROUND:In cutaneous melanoma (CM), the present methods of lymph node (LN) staging have not sufficiently utilized the prognostic information of metastatic LNs. In this study, we aimed to construct prognostic nomograms based on the number of positive LNs (PLNs) and other clinicopathologic characteristics of CM patien...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-020-09556-6
更新日期:2021-01-11 00:00:00
abstract:BACKGROUND:Studies assessing outcomes in occult breast cancer have often included women treated before the routine use of magnetic resonance imaging (MRI). This study examined outcomes for patients presenting with axillary adenopathy and no primary breast tumor detectable by MRI or other imaging methods. METHODS:All p...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-017-5965-5
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:In locally advanced pelvic cancer, tumor fixation to the bony pelvis is regarded as unresectable and often inoperable. Few data exist regarding the futility or utility of pelvic exenteration with en bloc resection of involved portions of the bony pelvis. METHODS:Thirty-four of 625 patients undergoing radica...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1007/BF02524342
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:To determine the effect of flap reconstruction on perineal complications in locally advanced rectal cancers (LARC) and locally recurrent rectal cancers (LRRC). Prior studies have suggested that flap reconstruction may decrease wound complications after ablative surgery for rectal cancer but are limited by sm...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-014-3529-5
更新日期:2014-06-01 00:00:00
abstract:BACKGROUND:There is increasing evidence that tumor hypoxia plays a significant role in the chemoresistance of melanoma, but to our knowledge, real-time tumor oxygenation during isolated limb infusion (ILI) has not been studied. We sought to demonstrate the feasibility of measuring real-time alterations in tissue oxygen...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-013-3222-0
更新日期:2014-05-01 00:00:00
abstract:BACKGROUND:Abnormal phosphatase and tensin analog (PTEN) gene expression has been noted in neoplasms. The PTEN protein cleaves phosphate groups from cellular growth kinases, inhibiting tumor propagation. A downstream target of PTEN is AKT, a serine-threonine kinase that when activated inhibits apoptosis. We sought to d...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1007/BF02573071
更新日期:2002-04-01 00:00:00
abstract:BACKGROUND:The extent of tumor resection (EOTR) calculated by enhanced T1 changes in glioblastomas has been previously reported to predict survival. However, fluid-attenuated inversion recovery (FLAIR) volume may better represent tumor burden. In this study, we report the first assessment of the dynamics of FLAIR volum...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-016-5635-z
更新日期:2017-03-01 00:00:00
abstract:BACKGROUND:The rising incidence of incidental thyroid carcinoma (ITC) detected during fluoro-2-deoxy-D: -glucose (FDG)-positron emission tomography (PET)/computed tomography (CT) scanning poses a challenge to clinicians. The present study aims to critically evaluate the clinicopathological characteristics of ITC detect...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-010-1287-6
更新日期:2011-02-01 00:00:00
abstract:BACKGROUND:Melanoma that involves the upper gastrointestinal (GI) tract is rare and studies relating to endoscopic and pathologic findings with clinical outcomes are lacking. We reviewed the gross and microscopic patterns of the upper GI tract in primary and metastatic melanoma, and examined their association with clin...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-014-3637-2
更新日期:2014-08-01 00:00:00
abstract:BACKGROUND:Whether thyroidectomy for metastases to the thyroid is associated with a survival benefit remains debatable; in general, palliation and disease control are accepted goals in this setting. We evaluated the clinical features and overall survival of patients with thyroid metastasis treated by thyroid resection ...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-013-3282-1
更新日期:2014-02-01 00:00:00
abstract:BACKGROUND:Patients with periampullary cancer frequently suffer obstructive jaundice and commonly require preoperative biliary drainage (PBD) for relief and to avoid related complications. Although research has established a correlation between PBD and surgical wound infection, the impact of PBD on major infectious com...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-019-07189-y
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:CD44 isoforms serve as a marker for cancer stem cells. CD44 variant 9 (CD44v9) contributes to the defense against reactive oxygen species, resulting in resistance to chemoradiotherapy. However, the significance of CD44v9 in patients with lung adenocarcinoma is unknown. METHODS:We used immunohistochemical an...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-018-07137-2
更新日期:2019-05-01 00:00:00
abstract:BACKGROUND:Patients with biliary tract adenocarcinoma with nodal involvement have a poor prognosis. There is currently no standardized method for intraoperative lymph node assessment. The current study aimed to determine the prognostic significance of the highest peripancreatic lymph node (HPLN) in biliary tract malign...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-013-3352-4
更新日期:2014-03-01 00:00:00
abstract::Information is lacking regarding the interaction of established breast cancer risk factors and patient age. We attempted to study this interaction in high-risk women at the extremes of age in our population. The Women-At-Risk Registry was queried for women who were < or =35 and > or =70 years of age. Enrollment criter...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/s10434-008-0176-8
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Our objective was to correlate the extent of margin positivity and the findings on re-excision specimens of infiltrating mammary carcinoma. METHODS:We selected 50 consecutive cases of infiltrating mammary carcinoma, including both infiltrating ductal carcinoma and infiltrating lobular carcinoma, with positi...
journal_title:Annals of surgical oncology
pub_type: 杂志文章
doi:10.1245/aso.2003.05.030
更新日期:2003-01-01 00:00:00