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Comparative breast cancer

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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/29352595/axillary-tumour-burden-in-women-with-one-abnormal-node-on-ultrasound-compared-to-women-with-multiple-abnormal-nodes
#2
S Puri, N Sharma, R G Newcombe, M Kaushik, M Al-Attar, S Pascaline, M Hajaj, M G Wallis, B Elsberger, A Goyal
AIM: To determine if the number of abnormal nodes seen on preoperative axillary ultrasound (AUS) is a predictor of the number of positive nodes at histology for women with needle-biopsy-proven positive nodes. MATERIALS AND METHODS: This prospective multicentre cohort study included consecutive patients with early breast cancer who had needle-biopsy-proven positive nodes on AUS and underwent axillary lymph node dissection (ALND) between October 2015 and July 2016...
January 15, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29352569/patient-navigation-reduces-time-to-care-for-patients-with-breast-symptoms-and-abnormal-screening-mammograms
#3
Elaine McKevitt, Carol Dingee, Rebecca Warburton, Jin-Si Pao, Carl J Brown, Christine Wilson, Urve Kuusk
INTRODUCTION: Concern has been raised about delays for patients presenting with breast symptoms in Canada. Our objective was to determine if our Rapid Access Breast Clinic (RABC) improved care for patients presenting with breast symptoms compared to the traditional system (TS). METHODS: A retrospective chart review tabulated demographic, surgical, pathology and radiologic information. Wait times to care were determined for patients presenting with symptomatic and screen detected breast problems...
January 5, 2018: American Journal of Surgery
https://www.readbyqxmd.com/read/29352566/in-hospital-cerebrovascular-outcomes-of-patients-with-atrial-fibrillation-and-cancer-from-the-national-inpatient-sample-database
#4
Ayman Elbadawi, Islam Y Elgendy, Le Dung Ha, Basarat Baig, Marwan Saad, Hussain Adly, Gbolahan O Ogunbayo, Odunayo Olorunfemi, Matthew S Mckillop, Scott A Maffett
Limited data are available regarding the impact of cancer on cerebrovascular accidents in patients with atrial fibrillation (AF). We queried the Nationwide Inpatient Survey Database to identify patients who have diagnostic code for AF. We performed a 1:1 propensity matching based on the CHA2DS2VASc score and other risk factors between patients with AF who had lung, breast, colon, and esophageal cancer, and those who did not (control). The final cohort included a total of 31,604 patients. The primary outcome of in-hospital cerebrovascular accidents (CVA) was lower in the cancer group than in the control group (4% vs 7%, p < 0...
December 20, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29352164/determinants-of-breast-size-in-asian-women
#5
Li Yan Lim, Peh Joo Ho, Jenny Liu, Wen Yee Chay, Min-Han Tan, Mikael Hartman, Jingmei Li
Breast size as a risk factor of breast cancer has been studied extensively with inconclusive results. Here we examined the associations between breast size and breast cancer risk factors in 24,353 Asian women aged 50 to 64 years old enrolled in a nationwide mammography screening project conducted between October 1994 and February 1997. Information on demographic and reproductive factors was obtained via a questionnaire. Breast size was ascertained as bust line measured at study recruitment and total breast area measured from a mammogram...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351960/the-impact-of-diabetes-on-breast-cancer-treatments-and-outcomes-a-population-based-study
#6
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/29351803/psychometric-properties-and-measurement-equivalence-of-the-multidimensional-fatigue-syndrome-inventory-short-form-mfsi-sf-amongst-breast-cancer-and-lymphoma-patients-in-singapore
#7
Alexandre Chan, Claire Lew, Xiao Jun Wang, Terence Ng, Jung-Woo Chae, Hui Ling Yeo, Maung Shwe, Yan Xiang Gan
BACKGROUND: Currently, several fatigue measurement instruments are available to evaluate and measure cancer-related fatigue. Amongst them, Multidimensional Fatigue Syndrome Inventory-Short Form (MFSI-SF) is a self-reported instrument and a multidimensional scale that aims to capture the global, somatic, affective, cognitive and behavioural symptoms of fatigue. This study examines the psychometric properties and measurement equivalence of the English and Chinese versions of MFSI-SF in breast cancer and lymphoma patients in Singapore...
January 19, 2018: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/29351761/selective-serotonin-reuptake-inhibitor-use-and-breast-cancer-survival-a-population-based-cohort-study
#8
John Busby, Ken Mills, Shu-Dong Zhang, Fabio Giuseppe Liberante, Chris R Cardwell
BACKGROUND: Nearly 50% of breast cancer patients suffer from depression or anxiety. Selective serotonin reuptake inhibitors (SSRIs), the first-line pharmacological treatment for depression, have been implicated in breast cancer development through increased prolactin levels and tamoxifen metabolism inhibition. Previous studies of breast cancer progression have focused on tamoxifen users, or have been limited by their small sample size and methodology. Therefore, we used UK population-based data to more robustly investigate the association between SSRI use and cancer-specific mortality...
January 19, 2018: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/29350899/cyclam-modified-pei-for-combined-vegf-sirna-silencing-and-cxcr4-inhibition-to-treat-metastatic-breast-cancer
#9
Yiwen Zhou, Fei Yu, Feiran Zhang, Gang Chen, Kaikai Wang, Minjie Sun, Jing Li, David Oupický
Chemokine receptor CXCR4 plays an important role in cancer cell invasion and metastasis. Recent findings suggest that anti-VEGF therapies upregulate CXCR4 expression, which contributes to resistance to antiangiogenic therapies. Here, we report the development of novel derivatives of polyethylenimine (PEI) that effectively inhibit CXCR4 while delivering anti-VEGF siRNA. PEI was alkylated with different amounts of a CXCR4-binding cyclam derivative to prepare PEI-C. Modification with the cyclam derivatives resulted in a considerable decrease in cytotoxicity when compared with unmodified PEI...
January 19, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29350484/paraptosis-inducing-nanomedicine-overcomes-cancer-drug-resistance-for-a-potent-cancer-therapy
#10
Yongcun Zhou, Feiteng Huang, Ying Yang, Pingli Wang, Zhen Zhang, Yining Tang, Youqing Shen, Kai Wang
Most chemotherapeutic drugs and their nanomedicine formulations exert anticancer activity by inducing cancer cell apoptosis. However, cancer cells inherently have and acquire many antiapoptosis mechanisms, causing cancer drug resistance and poor prognoses in patients. Herein, a potent paraptosis-inducing nanomedicine is reported that causes quick nonapoptotic death of cancer cells, overcoming apoptosis-based resistance and effectively inhibiting drug-resistant tumor growth. The nanomedicine is composed of micelles made from an amphiphilic 8-hydroxyquinoline (HQ)-conjugate block copolymer with polyethylene glycol...
January 19, 2018: Small
https://www.readbyqxmd.com/read/29350274/t-lymphocytes-facilitate-brain-metastasis-of-breast-cancer-by-inducing-guanylate-binding-protein-1-expression
#11
Dana A M Mustafa, Rute M S M Pedrosa, Marcel Smid, Marcel van der Weiden, Vanja de Weerd, Alex L Nigg, Cor Berrevoets, Lona Zeneyedpour, Neibla Priego, Manuel Valiente, Theo M Luider, Reno Debets, John W M Martens, John A Foekens, Anieta M Sieuwerts, Johan M Kros
The discovery of genes and molecular pathways involved in the formation of brain metastasis would direct the development of therapeutic strategies to prevent this deadly complication of cancer. By comparing gene expression profiles of Estrogen Receptor negative (ER-) primary breast tumors between patients who developed metastasis to brain and to organs other than brain, we found that T lymphocytes promote the formation of brain metastases. To functionally test the ability of T cells to promote brain metastasis, we used an in vitro blood-brain barrier (BBB) model...
January 19, 2018: Acta Neuropathologica
https://www.readbyqxmd.com/read/29350051/hsa-based-multi-target-combination-therapy-regulating-drugs-release-from-hsa-and-overcoming-single-drug-resistance-in-a-breast-cancer-model
#12
Yi Gou, Zhenlei Zhang, Dongyang Li, Lei Zhao, Meiling Cai, Zhewen Sun, Yongping Li, Yao Zhang, Hamid Khan, Hongbing Sun, Tao Wang, Hong Liang, Feng Yang
Multi-drug delivery systems, which may be promising solution to overcome obstacles, have limited the clinical success of multi-drug combination therapies to treat cancer. To this end, we used three different anticancer agents, Cu(BpT)Br, NAMI-A, and doxorubicin (DOX), to build human serum albumin (HSA)-based multi-drug delivery systems in a breast cancer model to investigate the therapeutic efficacy of overcoming single drug (DOX) resistance to cancer cells in vivo, and to regulate the drugs' release from HSA...
November 2018: Drug Delivery
https://www.readbyqxmd.com/read/29349801/evaluating-the-effects-of-rater-and-subject-factors-on-measures-of-association
#13
Kerrie P Nelson, Aya A Mitani, Don Edwards
Large-scale agreement studies are becoming increasingly common in medical settings to gain better insight into discrepancies often observed between experts' classifications. Ordered categorical scales are routinely used to classify subjects' disease and health conditions. Summary measures such as Cohen's weighted kappa are popular approaches for reporting levels of association for pairs of raters' ordinal classifications. However, in large-scale studies with many raters, assessing levels of association can be challenging due to dependencies between many raters each grading the same sample of subjects' results and the ordinal nature of the ratings...
January 19, 2018: Biometrical Journal. Biometrische Zeitschrift
https://www.readbyqxmd.com/read/29349758/is-dcis-overrated
#14
Joshua Feinberg, Rachel Wetstone, Dana Greenstein, Patrick Borgen
Ductal carcinoma in situ (DCIS), the noninvasive form of breast cancer (BC), comprises just over 20% of breast cancer cases diagnosed each year in the USA. Most patients are treated with local excision of the disease followed by whole breast radiation therapy. Total mastectomy is not an uncommon approach, and total mastectomy with a contralateral risk-reducing mastectomy has been on the rise in the past decade. In estrogen receptor-positive disease, patients are often offered endocrine ablative therapy with a selective estrogen receptor modulator or an aromatase inhibitor as both treatment and prevention...
2018: Cancer Treatment and Research
https://www.readbyqxmd.com/read/29349713/patient-reported-outcomes-of-catheter-based-accelerated-partial-breast-brachytherapy-and-whole-breast-irradiation-a-single-institution-experience
#15
Krishan R Jethwa, Mohamed M Kahila, Kristin C Mara, William S Harmsen, David M Routman, Geralyn M Pumper, Kimberly S Corbin, Jeff A Sloan, Kathryn J Ruddy, Tina J Hieken, Sean S Park, Robert W Mutter
PURPOSE: Accelerated partial breast irradiation (APBI) and whole breast irradiation (WBI) are treatment options for early-stage breast cancer. The purpose of this study was to compare patient-reported-outcomes (PRO) between patients receiving multi-channel intra-cavitary brachytherapy APBI or WBI. METHODS: Between 2012 and 2015, 131 patients with ductal carcinoma in situ (DCIS) or early stage invasive breast cancer were treated with adjuvant APBI (64) or WBI (67) and participated in a PRO questionnaire...
January 18, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29349711/impact-of-an-embedded-genetic-counselor-on-breast-cancer-treatment
#16
Holly J Pederson, Najaah Hussain, Ryan Noss, Courtney Yanda, Colin O'Rourke, Charis Eng, Stephen R Grobmyer
BACKGROUND: We predicted that embedding a genetic counselor within our breast practice would improve identification of high-risk individuals, timeliness of care, and appropriateness of surgical decision making. The aim of this study is to compare cancer care between 2012 and 2014, prior to embedding a genetic counselor in the breast center and following the intervention, respectively. METHODS: A retrospective review of patients diagnosed with breast cancer in 2012 (n = 471) and 2014 (n = 440) was performed to assess patterns of medical genetics referral, compliance with referral, genetic testing findings, and impact on treatment...
January 18, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29349483/surgical-outcomes-of-primary-versus-post-neoadjuvant-chemotherapy-breast-conservation-surgery-a-comparative-study-from-a-developing-country
#17
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
#18
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/29348858/the-survival-benefit-of-neoadjuvant-chemotherapy-and-pcr-among-patients-with-advanced-stage-triple-negative-breast-cancer
#19
Tithi Biswas, Jimmy T Efird, Shreya Prasad, Charulata Jindal, Paul R Walker
Triple negative breast cancer (TNBC) is an aggressive subtype that accounts for 15-20% of cases, with a higher incidence of relapse/death. Even with adjuvant chemotherapy, the 5 year distant metastasis-free survival rate remains low. A total of 452 tumor registry patients with TNBC and no evidence of metastatic disease were identified over the period of 1996-2011. The median age and follow-up time were 51 (range=21-88) and 3.9 (range=0.14-14) years. Approximately 75% of patients with stage III disease received neoadjuvant chemotherapy (NACT) compared with 47% for stage II...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29348395/nkila-inhibits-nf-%C3%AE%C2%BAb-signaling-and-suppresses-tumor-metastasis
#20
Shun Ke, Rui-Chao Li, Fan-Kai Meng, Ming-Hao Fang
The long non-coding RNA (lncRNA) NKILA (nuclear transcription factor NF-κB interacting lncRNA) functions as a suppressor in human breast cancer and tongue cancer. However, the clinical significance and biological roles of NKILA in esophageal squamous cell carcinoma (ESCC) remain unknown. In this study, we showed that NKILA was downregulated in ESCC tissues and cancer cells compared with their normal counterparts. Low NKILA expression correlated with large tumor size and advanced TNM stage, and predicted poor overall and disease-free survival of ESCC patients...
January 17, 2018: Aging
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