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https://www.readbyqxmd.com/read/29352629/an-in-silico-comparative-dosimetric-study-of-postmastectomy-locoregional-irradiation-using-intensity-modulated-vs-3-dimensional-conventional-radiotherapy
#1
Pooja Khullar, Charu Garg, Sujit Nath Sinha, Inderjit Kaur, Niloy Ranjan Datta
An in silico dosimetric evaluation of intensity-modulated radiation therapy (IMRT) vs 3-dimensional conventional radiation therapy (3D-CRT) treatment plans in postmastectomy radiation therapy (PMRT) to the chest wall and regional lymphatics was conducted. Twenty-five consecutive patients with breast cancer referred for locoregional PMRT, stages T2-4 with N1-3, were planned to receive 50 Gy in 25 fractions with IMRT. Additionally, a 3D-CRT plan was generated using identical contours for the clinical target volumes (CTV), planning target volumes (PTV), and organs at risk (OAR)...
January 15, 2018: Medical Dosimetry: Official Journal of the American Association of Medical Dosimetrists
https://www.readbyqxmd.com/read/29351960/the-impact-of-diabetes-on-breast-cancer-treatments-and-outcomes-a-population-based-study
#2
Iliana C Lega, Peter C Austin, Hadas D Fischer, Kinwah Fung, Monika K Krzyzanowska, Eitan Amir, Lorraine L Lipscombe
OBJECTIVE: Women with breast cancer and diabetes face worse outcomes than those with breast cancer without diabetes; however, the contribution of comorbidity to these disparities remains unclear. We evaluated the impact of diabetes on receipt of cancer treatments as well as mortality while accounting for other comorbidities. RESEARCH DESIGN AND METHODS: Ontario administrative databases were used to compare the rate of receipt of breast cancer treatments between women with and without diabetes...
January 19, 2018: Diabetes Care
https://www.readbyqxmd.com/read/29349483/surgical-outcomes-of-primary-versus-post-neoadjuvant-chemotherapy-breast-conservation-surgery-a-comparative-study-from-a-developing-country
#3
Gaurav Agarwal, Chaitra Sonthineni, Sabaretnam Mayilvaganan, Anjali Mishra, Punita Lal, Vinita Agrawal
INTRODUCTION: In India and other developing countries, breast conservation surgery (BCS) rates in breast cancer patients are low due to advanced disease at presentation and misconceptions about BCS outcomes. Many patients presenting with large or locally advanced breast cancers (LABC) can be offered post-neoadjuvant chemotherapy (NACT) BCS, safety of which is not as well established as that of primary BCS. This retrospective study compared pathological and surgical outcome parameters in patients undergoing primary and post-NACT BCS...
January 18, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29348868/luminal-like-her2-negative-stage-ia-breast-cancer-a-multicenter-retrospective-study-on-long-term-outcome-with-propensity-score-analysis
#4
Carmine De Angelis, Massimo Di Maio, Anna Crispo, Mario Giuliano, Francesco Schettini, Marta Bonotto, Lorenzo Gerratana, Donatella Iacono, Marika Cinausero, Ferdinando Riccardi, Giuseppe Ciancia, Michelino De Laurentiis, Fabio Puglisi, Sabino De Placido, Grazia Arpino
The benefit of adding chemotherapy (CT) to adjuvant hormone therapy (HT) in stage IA luminal-like HER2-negative breast cancer (BC) is unclear. We retrospectively evaluated predictive factors and clinical outcome of 1,222 patients from 4 oncologic centers. Three hundred and eighty patients received CT and HT (CT-cohort) and 842 received HT alone (HT-cohort). Disease-free survival (DFS) and overall survival (OS) were evaluated with univariate and multivariate analyses. We also applied the propensity score methodology...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348842/ddefl1-correlated-with-rho-gtpases-activity-in-breast-cancer
#5
Xiaoyun Mao, Chuifeng Fan, Xinmiao Yu, Bo Chen, Feng Jin
DDEFL1 is related to maintaining a limiting amount of ARF6 in GTP-loaded form by accelerating its GTP hydrolysis activity, which has been implicated in hepatocellular cancer pathogenesis and lung cancer development. We investigated DDEFL1 expression in breast cancer and paired normal breast tissues by immunohistochemistry and found that DDEFL1 expression was significantly associated with tumor size, lymph node metastasis, high content of elastosis and TNM stage but not with menopausal status or age. We detected the mRNA and protein expression of DDEFL1 in breast cancer cell lines by Western blotting and quantitative real-time PCR (qRT-PCR)...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29346471/use-of-single-nucleotide-polymorphisms-and-mammographic-density-plus-classic-risk-factors-for-breast-cancer-risk-prediction
#6
Elke M van Veen, Adam R Brentnall, Helen Byers, Elaine F Harkness, Susan M Astley, Sarah Sampson, Anthony Howell, William G Newman, Jack Cuzick, D Gareth R Evans
Importance: Single-nucleotide polymorphisms (SNPs) have demonstrated an association with breast cancer susceptibility, but there is limited evidence on how to incorporate them into current breast cancer risk prediction models. Objective: To determine whether a panel of 18 SNPs (SNP18) may be used to predict breast cancer in combination with classic risk factors and mammographic density. Design, Setting, and Participants: This cohort study enrolled a subcohort of 9363 women, aged 46 to 73 years, without a previous breast cancer diagnosis from the larger prospective cohort of the PROCAS study (Predicting Risk of Cancer at Screening) specifically to evaluate breast cancer risk-assessment methods...
January 18, 2018: JAMA Oncology
https://www.readbyqxmd.com/read/29344276/the-clinicopathological-features-and-survival-outcomes-of-different-histological-subtypes-in-triple-negative-breast-cancer
#7
Hong-Ye Liao, Wen-Wen Zhang, Jia-Yuan Sun, Feng-Yan Li, Zhen-Yu He, San-Gang Wu
Purpose: To determine the clinicopathological features and survival outcomes of triple-negative breast cancer (TNBC) according to different histological subtypes. Methods: Using the Surveillance, Epidemiology, and End Results database, we included TNBC cases in 2010-2013. The effect of histological subtype on breast cancer-specific survival (BCSS) and overall survival (OS) were analyzed using univariate and multivariate analyses. Results: A total of 19,900 patients were identified. Infiltrating ductal carcinoma not otherwise specified accounted for 91...
2018: Journal of Cancer
https://www.readbyqxmd.com/read/29344265/high-expression-of-pu-1-is-associated-with-her-2-and-shorter-survival-in-patients-with-breast-cancer
#8
Jing Lin, Wei Liu, Tian Luan, Lili Yuan, Wei Jiang, Huilong Cai, Weiguang Yuan, Yuwen Wang, Qingyuan Zhang, Lihong Wang
The transcription factor PU.1 was previously identified as an oncogene or a tumor suppressor in different types of leukemia. The aim of the present study was to investigate the expression of PU.1 in breast cancer and to analyze its association with clinical features and prognosis. Immunohistochemistry was used to determine PU.1 expression in breast cancer tissue microarrays and paraffin-embedded sections. The association between PU.1 expression and clinicopathological factors was assessed by using chi-square test...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29343242/stage-of-cancer-diagnoses-among-migrants-from-the-former-soviet-union-in-comparison-to-the-german-population-are-diagnoses-among-migrants-delayed
#9
An Bin Cho, Philipp Jaehn, Bernd Holleczek, Heiko Becher, Volker Winkler
BACKGROUND: In this study, we compared stage at diagnosis, standardized incidence ratio (SIR) and standardized mortality ratio (SMR) of most frequent cancer diagnoses between re-settlers (Aussiedler) from the former Soviet Union and the general population in the Saarland in Germany to assess possible delays in diagnosis of cancer among this migrant group. METHODS: Lung cancer, colorectal cancer, breast cancer, prostate cancer, malignant melanoma of the skin and stomach cancer diagnoses among a cohort of 18,619 re-settlers living in the Saarland between 1990 and 2009 were identified by the federal state's cancer registry...
January 17, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29342159/prediction-of-novel-target-genes-and-pathways-involved-in-bevacizumab-resistant-colorectal-cancer
#10
Precious Takondwa Makondi, Chia-Hwa Lee, Chien-Yu Huang, Chi-Ming Chu, Yu-Jia Chang, Po-Li Wei
Bevacizumab combined with cytotoxic chemotherapy is the backbone of metastatic colorectal cancer (mCRC) therapy; however, its treatment efficacy is hampered by therapeutic resistance. Therefore, understanding the mechanisms underlying bevacizumab resistance is crucial to increasing the therapeutic efficacy of bevacizumab. The Gene Expression Omnibus (GEO) database (dataset, GSE86525) was used to identify the key genes and pathways involved in bevacizumab-resistant mCRC. The GEO2R web tool was used to identify differentially expressed genes (DEGs)...
2018: PloS One
https://www.readbyqxmd.com/read/29341832/racial-differences-in-21-gene-recurrence-scores-among-patients-with-hormone-receptor-positive-node-negative-breast-cancer
#11
Andreana N Holowatyj, Michele L Cote, Julie J Ruterbusch, Kristina Ghanem, Ann G Schwartz, Fawn D Vigneau, David H Gorski, Kristen S Purrington
Purpose The 21-gene recurrence score (RS) breast cancer assay is clinically used to quantify risk of 10-year distant recurrence by category (low, < 18; intermediate, 18 to 30; high, ≥ 31) for treatment management among women diagnosed with hormone receptor-positive, human epidermal growth factor receptor 2-negative, lymph node-negative breast cancer. Although non-Hispanic black (NHB) women have worse prognosis compared with non-Hispanic white (NHW) women, the equivalency of 21-gene RS across racial groups remains unknown...
January 17, 2018: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29341157/minimizing-inequality-in-access-to-precision-medicine-in-breast-cancer-by-real-time-population-based-molecular-analysis-in-the-scan-b-initiative
#12
L Rydén, N Loman, C Larsson, C Hegardt, J Vallon-Christersson, M Malmberg, H Lindman, A Ehinger, L H Saal, Å Borg
BACKGROUND: Selection of systemic therapy for primary breast cancer is currently based on clinical biomarkers along with stage. Novel genomic tests are continuously being introduced as more precise tools for guidance of therapy, although they are often developed for specific patient subgroups. The Sweden Cancerome Analysis Network - Breast (SCAN-B) initiative aims to include all patients with breast cancer for tumour genomic analysis, and to deliver molecular subtype and mutational data back to the treating physician...
January 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29340103/anti-neoplastic-drugs-increase-caveolin-1-dependent-migration-invasion-and-metastasis-of-cancer-cells
#13
Natalia I Díaz-Valdivia, Claudia C Calderón, Jorge E Díaz, Lorena Lobos-González, Hugo Sepulveda, Rina J Ortíz, Samuel Martinez, Veronica Silva, Horacio J Maldonado, Patricio Silva, Sergio Wehinger, Verónica A Burzio, Vicente A Torres, Martín Montecino, Lisette Leyton, Andrew F G Quest
Expression of the scaffolding protein Caveolin-1 (CAV1) enhances migration and invasion of metastatic cancer cells. Yet, CAV1 also functions as a tumor suppressor in early stages of cancer, where expression is suppressed by epigenetic mechanisms. Thus, we sought to identify stimuli/mechanisms that revert epigenetic CAV1 silencing in cancer cells and evaluate how this affects their metastatic potential. We reasoned that restricted tissue availability of anti-neoplastic drugs during chemotherapy might expose cancer cells to sub-therapeutic concentrations, which activate signaling pathways and the expression of CAV1 to favor the acquisition of more aggressive traits...
December 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29338443/barriers-to-acupuncture-use-among-breast-cancer-survivors-a-cross-sectional-analysis
#14
Ting Bao, Qing Li, Janice L DeRito, Christina Seluzicki, Eun-Ok Im, Jun Mao
INTRODUCTION: Increasing evidence suggests that acupuncture may be helpful to manage common symptoms and treatment side effects among breast cancer (BC) survivors. Acupuncture usage among BC survivors remains low with little known about the barriers to its utilization. We evaluated perceived barriers to acupuncture use among BC survivors and explored the sociodemographic variations of such barriers. METHODS: We conducted a cross-sectional analysis at an urban academic cancer center on 593 postmenopausal women with a history of stage I-III hormone receptor-positive BC who were taking or had taken an aromatase inhibitor...
January 1, 2018: Integrative Cancer Therapies
https://www.readbyqxmd.com/read/29338086/cardiometabolic-risk-factors-and-survival-after-breast-cancer-in-the-women-s-health-initiative
#15
Michael S Simon, Jennifer L Beebe-Dimmer, Theresa A Hastert, JoAnn E Manson, Elizabeth M Cespedes Feliciano, Marian L Neuhouser, Gloria Y F Ho, Jo L Freudenheim, Howard Strickler, Julie Ruterbusch, Ana Barac, Rowan Chlebowski, Bette Caan
BACKGROUND: Few studies have examined the relationship between cardiometabolic risk factors linked to metabolic syndrome and mortality among women with breast cancer. METHODS: We used the Women's Health Initiative to evaluate the relationship between cardiometabolic risk factors, including waist circumference (WC), blood pressure, cholesterol level, and presence of type 2 diabetes, and their relation with death from breast cancer, cardiovascular disease (CVD), and other causes among 8641 women with local or regional stage invasive breast cancer...
January 16, 2018: Cancer
https://www.readbyqxmd.com/read/29334917/obesity-and-breast-cancer-outcomes-in-chemotherapy-patients-in-new-zealand-a-population-based-cohort-study
#16
J Mark Elwood, Sandar Tin Tin, Marion Kuper-Hommel, Ross Lawrenson, Ian Campbell
BACKGROUND: Obesity has been reported as an adverse prognostic factor in breast cancer, but inconsistently, and under-treatment with chemotherapy may occur. We provide the first assessment of obesity and breast cancer outcomes in a population-based, multi-ethnic cohort of New Zealand patients treated with chemotherapy. METHODS: All 3536 women diagnosed with invasive breast cancer in the Waikato region of New Zealand from 2000-2014 were registered and followed until last follow-up in specialist or primary care, death or Dec 2014; median follow-up 4...
January 15, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29334616/preoperative-breast-magnetic-resonance-imaging-use-by-breast-density-and-family-history-of-breast-cancer
#17
Louise M Henderson, Rebecca A Hubbard, Weiwei Zhu, Julie Weiss, Karen J Wernli, Martha E Goodrich, Karla Kerlikowske, Wendy DeMartini, Elissa M Ozanne, Tracy Onega
BACKGROUND: Use of preoperative breast magnetic resonance imaging (MRI) among women with a new breast cancer has increased over the past decade. MRI use is more frequent in younger women and those with lobular carcinoma, but associations with breast density and family history of breast cancer are unknown. MATERIALS AND METHODS: Data for 3075 women ages >65 years with stage 0-III breast cancer who underwent breast conserving surgery or mastectomy from 2005 to 2010 in the Breast Cancer Surveillance Consortium were linked to administrative claims data to assess associations of preoperative MRI use with mammographic breast density and first-degree family history of breast cancer...
January 15, 2018: Journal of Women's Health
https://www.readbyqxmd.com/read/29332358/a-study-on-basic-demographic-and-disease-characteristics-of-cancer-diagnosed-syrian-refugees-treated-in-the-border-city-of-turkey-sanliurfa-a-hospital-based-retrospective-case-series-study
#18
Yasemin Bakkal Temi, Ali Murat Sedef, Serkan Gokcay, Hatice Coskun, Sedenay Oskeroglu Kaplan, Ozlem Ozkul, Huseyin Mertsoylu, Fatih Kose
PURPOSE: Turkey hosts around 3 million Syrian refugees which is more than any other country in the world. Along with some other adaptation issues like cultural, language, and economic difficulties, significant problems in managing medical problems, chronic diseases like cancer in particular, have to be fixed. However, there are few studies which explore main patient and clinicopathological characteristics in Syrian refugees with cancer. The purpose of this study was to highlight the aforementioned characteristics along with management issues after cancer diagnosis of these patients...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29332137/variation-in-guideline-concordant-care-for-elderly-patients-with-metastatic-breast-cancer-in-the-united-states
#19
Philip D Poorvu, Ines Vaz-Luis, Rachel A Freedman, Nancy U Lin, William T Barry, Eric P Winer, Michael J Hassett
PURPOSE: Prior studies have identified shortcomings in the quality of care for early-stage breast cancer. Guidelines recommend systemic therapy for metastatic breast cancer (MBC), but few studies have examined guideline concordance for these patients. METHODS: We used Surveillance, Epidemiology, and End Results (SEER)-Medicare data to identify patients aged ≥ 66 diagnosed in 2010-2011 with de novo MBC who were continuously enrolled in fee-for-service Medicare...
January 13, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29330754/systematic-review-of-mammography-screening-educational-interventions-for-hispanic-women-in-the-united-states
#20
REVIEW
John S Luque, Ayaba Logan, Grace Soulen, Kent E Armeson, Danielle M Garrett, Caroline B Davila, Marvella E Ford
In the United States (U.S.), Hispanics experience breast cancer disparities. Breast cancer is the leading cause of cancer-related death among Hispanic women, and Hispanic women receive mammography screening at lower rates than some other ethnic groups. This low rate of screening mammography is associated with increased risk for possible late-stage diagnosis and lower survival rates. Educational interventions could play a role in increasing screening mammography rates among Hispanic women. This systematic review synthesized the current literature on educational interventions to increase mammography screening among Hispanic women...
January 12, 2018: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
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