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breast cancer and adjuvance

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https://www.readbyqxmd.com/read/28719857/in-situ-adjuvant-therapy-using-a-responsive-doxorubicin-loaded-fibrous-scaffold-after-tumor-resection
#1
Ziming Yuan, Wei Wu, Zhongwei Zhang, Zhiyong Sun, Ruoyu Cheng, Guoqin Pan, Xuemin Wang, Wenguo Cui
As tumor microenvironment becoming more and more important in tumor study, the acid pH around or in solid tumors drew lots of attentions. And the progress of drug delivery systems made the responsive-release possible. This time, we fabricated a new-type composite electrospun poly (L-lactide) (PLLA) fibrous scaffolds, that blent with the mesoporous silica particles (MSNs). Further more, we used sodium bicarbonate (SB) as acid sensitive agent which was wrapped inside the MSNs. And doxorubicin (DOX) was also wrapped into MSNs in order to achieve a sustained release to inhibit tumors in mice, which mimicked the remnant breast cancer with surgery...
July 1, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28718813/suppression-of-nrf2-activity-by-chestnut-leaf-extract-increases-chemosensitivity-of-breast-cancer-stem-cells-to-paclitaxel
#2
Yaejin Woo, Jisun Oh, Jong-Sang Kim
Due to metastatic potential and drug resistance, cancer stem cells (CSCs) have become a critical target for the development of chemotherapeutic agents. Recent studies showed that CSCs highly express NF-E2-related factor 2 (Nrf2)-mediated antioxidant enzymes and thereby retain relatively low levels of reactive oxygen species (ROS). Since anticancer agents usually utilize ROS as an arsenal for killing cancer cells, we hypothesized that inhibition of Nrf2 activity could increase the sensitivity of CSCs to anticancer drugs, and thus enhancing their therapeutic efficacy...
July 18, 2017: Nutrients
https://www.readbyqxmd.com/read/28718725/ellagic-acid-enhances-apoptotic-sensitivity-of-breast-cancer-cells-to-%C3%AE-radiation
#3
Vidhula Ahire, Amit Kumar, Kaushala Prasad Mishra, Gauri Kulkarni
Herbal polyphenols have gained increased significance because of the promises they hold in the prevention and treatment of cancer. There exists an enormous opportunity for the screening and valuation of natural dietary compounds in the development of an effective chemopreventive drug and radiosensitizer that may be of practical use for patients undergoing cancer therapy. This study describes the effect of the flavonoid ellagic acid (EA) on gamma-irradiated human breast cancer MCF-7 cells in vitro when administered alone or in combination with radiation...
July 18, 2017: Nutrition and Cancer
https://www.readbyqxmd.com/read/28717754/surgical-management-of-breast-cancer-in-africa-a-continent-wide-review-of-intervention-practices-barriers-to-care-and-adjuvant-therapy
#4
REVIEW
Stephanie A Sutter, Aaron Slinker, Deo Darius Balumuka, Katrina B Mitchell
Breast cancer has emerged as a leading cancer among women in Africa, necessitating improved understanding of its management across the continent. Although previous studies have described regional trends in therapy, this review aims to summarize continent-wide management and focus specifically on surgical interventions. Current literature shows that the rates of surgery, chemotherapy, and radiation therapy vary across different countries and institutions, indicating the need for greater use of standardized cancer treatment guidelines...
April 2017: Journal of Global Oncology
https://www.readbyqxmd.com/read/28717378/evaluation-of-shoulder-girdle-strength-more-than-12-month-after-modified-radical-mastectomy-and-axillary-nodes-dissection
#5
Mahdieh Akoochakian, Heidar Ali Davari, Mohammad Hossein Alizadeh, Nader Rahnama
BACKGROUND: Muscle strength is necessary for upper body normal function. Upper extremity function impairments have been reported in breast cancer (BC) survivors. It is not possible to know precisely if cancer adjuvant therapy such as radiation and chemotherapy had any effect on the unaffected arm. The aim of this study was to compare shoulder girdle strength among women with BC and similarly aged women without cancer. MATERIALS AND METHODS: Thirty-three postmenopausal women (51 ± 6...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28715540/predictors-of-hand-foot-syndrome-and-pyridoxine-for-prevention-of-capecitabine-induced-hand-foot-syndrome-a-randomized-clinical-trial
#6
Yoon-Sim Yap, Li-Lian Kwok, Nicholas Syn, Wen Yee Chay, John Whay Kuang Chia, Chee Kian Tham, Nan Soon Wong, Soo Kien Lo, Rebecca Alexandra Dent, Sili Tan, Zuan Yu Mok, King Xin Koh, Han Chong Toh, Wen Hsin Koo, Marie Loh, Raymond Chee Hui Ng, Su Pin Choo, Richie Chuan Teck Soong
Importance: Hand-foot syndrome (HFS) is a common adverse effect of capecitabine treatment. Objective: To compare the incidence and time to onset of grade 2 or greater HFS in patients receiving pyridoxine vs placebo and to identify biomarkers predictive of HFS. Design, Setting, and Participants: This single-center, randomized double-blind, placebo-controlled phase 3 trial conducted at National Cancer Centre Singapore assessed whether oral pyridoxine could prevent the onset of grade 2 or higher HFS in 210 patients scheduled to receive single-agent capecitabine chemotherapy for breast, colorectal, and other cancers...
July 13, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28715150/intraoperative-radiotherapy-patient-selection-management-and-follow-up
#7
REVIEW
Dennis R Holmes, Robert Zimmerman
Intraoperative partial breast radiotherapy is an alternative or an adjunct to fractionated whole breast irradiation for the administration of adjuvant radiotherapy in breast cancer following breast conserving surgery. Establishing intraoperative radiotherapy as a therapeutic modality requires a multidisciplinary approach to patient selection, workup, surgery, radiation protocols, chemotherapy, and patient follow up. In this article, we review the published evidence for best clinical practice, as a guide to the introduction of intraoperative radiotherapy for breast cancer treatment...
July 17, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28713771/integrating-hyperthermia-into-modern-radiation-oncology-what-evidence-is-necessary
#8
REVIEW
Jan C Peeken, Peter Vaupel, Stephanie E Combs
Hyperthermia (HT) is one of the hot topics that have been discussed over decades. However, it never made its way into primetime. The basic biological rationale of heat to enhance the effect of radiation, chemotherapeutic agents, and immunotherapy is evident. Preclinical work has confirmed this effect. HT may trigger changes in perfusion and oxygenation as well as inhibition of DNA repair mechanisms. Moreover, there is evidence for immune stimulation and the induction of systemic immune responses. Despite the increasing number of solid clinical studies, only few centers have included this adjuvant treatment into their repertoire...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28713551/case-report-intramammary-lymph-node-metastasis-of-an-unknown-primary-probably-occult-breast-undifferentiated-carcinoma
#9
Zacharoula Sidiropoulou, Félix Adélia, Isabela Gil, Tobias Teles, Claudia Santos, Lucilia Monteiro
Little is known about the clinical importance of intramammary lymph node metastasis of breast cancer, even though it is not rare. In the present paper, the authors present an unusual, rare case of an intramammary lymph node metastasis of an unknown primary, probably occult breast cancer, and its management. The patient was submitted to various staging exams and surgical procedures and a definitive diagnosis was not established. From a multidisciplinary context, it was assumed that the patient had a breast triple negative primary with axillary involvement...
2017: F1000Research
https://www.readbyqxmd.com/read/28712671/analysis-of-stereotactic-biopsies-performed-on-suspicious-calcifications-identified-within-24-months-after-completion-of-breast-conserving-surgery-and-radiation-therapy-for-early-breast-cancer-can-biopsy-be-obviated
#10
Rosalind P Candelaria, Palita Hansakul, Alastair M Thompson, Huong Le-Petross, Vicente Valero, Roland Bassett, Monica L Huang, Lumarie Santiago, Beatriz E Adrada
BACKGROUND: To determine the cancer yield of stereotactic biopsy of suspicious calcifications identified within 24 months after breast conservation therapy (BCT). METHODS: Retrospective review of stereotactic biopsies performed during 2009-2013 for suspicious calcifications in the ipsilateral breast of patients who completed BCT. RESULTS: 94/2773 (3.4%) had stereotactic biopsies for suspicious calcifications in the ipsilateral breast; 7/94 (7...
July 1, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28712528/breast-cancer-in-the-21st-century-from-early-detection-to-new-therapies
#11
J A Merino Bonilla, M Torres Tabanera, L H Ros Mendoza
The analysis of the causes that have given rise to a change in tendency in the incidence and mortality rates of breast cancer in the last few decades generates important revelations regarding the role of breast screening, the regular application of adjuvant therapies and the change of risk factors. The benefits of early detection have been accompanied by certain adverse effects, even in terms of an excessive number of prophylactic mastectomies. Recently, several updates have been published on the recommendations in breast cancer screening at an international level...
July 13, 2017: Radiología
https://www.readbyqxmd.com/read/28712340/deep-sequencing-reveals-the-mitochondrial-dna-variation-landscapes-of-breast-to-brain-metastasis-blood-samples
#12
Rhiannon E McGeehan, Lewis A Cockram, D Timothy J Littlewood, Kathleen Keatley, Diana M Eccles, Qian An
Breast-to-brain metastasis (BBM) often represents a terminal event, due to the inability of many systemic treatments to cross the blood-brain barrier (BBB), rendering the brain a sanctuary site for tumour cells. Identifying genetic variations that can predict the patients who will develop BBM would allow targeting of adjuvant treatments to reduce risk while disease bulk is minimal. Germ-line genetic variations may contribute to whether a BBM forms by influencing the primary tumour subtype that presents, or by influencing the host response to the tumour or treatment regimen, or by facilitating transition of tumour cells across the BBB and establish a viable brain metastasis...
July 15, 2017: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/28711750/web-based-tailored-psycho-education-for-breast-cancer-patients-at-the-onset-of-the-survivorship-phase-a-multicenter-randomized-controlled-trial
#13
Jolien M Admiraal, Annette W G van der Velden, Jenske I Geerling, Johannes G M Burgerhof, Grietje Bouma, Annemiek M E Walenkamp, Elisabeth G E de Vries, Carolien P Schröder, Anna K L Reyners
CONTEXT: Many breast cancer patients have unmet informational and psychosocial needs after treatment completion. A psycho-educational intervention may be well-suited to support these patients. OBJECTIVES: The purpose of this multicenter randomized controlled trial was to examine the effectiveness of a web-based tailored psycho-educational program (ENCOURAGE) for breast cancer patients which aims to empower patients to take control over prevailing problems. METHODS: Female breast cancer patients from two hospitals in the Netherlands who recently completed (neo-)adjuvant chemotherapy were randomly assigned to standard care or 12-week access to the ENCOURAGE program providing fully automated information, problem-solving strategies, resources and services for reported problems...
July 12, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/28711546/evaluation-of-estrogen-receptor-alpha-activation-by-glyphosate-based-herbicide-constituents
#14
Robin Mesnage, Alexia Phedonos, Martina Biserni, Matthew Arno, Sucharitha Balu, J Christopher Corton, Ricardo Ugarte, Michael N Antoniou
The safety, including endocrine disruptive capability, of glyphosate-based herbicides (GBHs) is a matter of intense debate. We evaluated the estrogenic potential of glyphosate, commercial GBHs and polyethoxylated tallowamine adjuvants present as co-formulants in GBHs. Glyphosate (≥10,000 μg/L or 59 μM) promoted proliferation of estrogen-dependent MCF-7 human breast cancer cells. Glyphosate also increased expression of an estrogen response element-luciferase reporter gene (ERE-luc) in T47D-KBluc cells, which was blocked by the estrogen antagonist ICI 182,780...
July 12, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28707988/first-clinical-report-of-helical-tomotherapy-with-simultaneous-integrated-boost-for-synchronous-bilateral-breast-cancer
#15
Tabassum Wadasadawala, Shanu Jain, Siji Paul, Reena Phurailatpam, Kishore Joshi, Palak Popat, Sandip Tandon, Aruna Alahari, Rajiv Sarin
OBJECTIVE: Radiotherapy for synchronous bilateral breast cancer (SBBC) is technically very challenging. This study reports the clinical feasibility, dosimetry and safety of helical tomotherapy (HT) with simultaneous integrated boost (SIB) in patients treated with adjuvant radiotherapy for SBBC. MATERIAL AND METHODS: Twenty one women with SBBC treated with HT from January 2013 to June 2016 were retrospectively evaluated. Radiation lung toxicity was assessed using pulmonary function test (PFT) and high resolution computerized tomography scan (HRCT) scan at baseline and 1 year post RT in 18 patients...
July 14, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28707744/the-impact-of-molecular-subtype-on-breast-cancer-recurrence-in-young-women-treated-with-contemporary-adjuvant-therapy
#16
Hanan Alabdulkareem, Tiffany Pinchinat, Sarah Khan, Alyssa Landers, Paul Christos, Rache Simmons, Tracy-Ann Moo
Breast cancer is the leading cause of cancer death in women younger than 40 years. Triple-negative breast cancer (TNBC) and human epidermal growth factor receptor-2 (HER2) positive subtypes have a particularly poor prognosis in this age group. The purpose of this study was to compare rates of recurrence among breast cancer subtypes in young patients treated with modern adjuvant systemic therapy. A retrospective review of breast cancer patients managed at a major academic breast center between May 2000 and November 2014 was performed...
July 14, 2017: Breast Journal
https://www.readbyqxmd.com/read/28707580/doxorubicin-loaded-micelle-targeting-muc1-a-potential-therapeutics-for-triple-negative-breast-cancer-treatment
#17
Supang Khondee, Chuda Chittasupho, Singkome Tima, Songyot Anuchapreeda
BACKGROUND: Triple negative breast cancer (TNBC) is an aggressive disease associated with poor prognosis and lack of validated targeted therapy. Thus chemotherapy is a main adjuvant treatment for TNBC patients, but it associates with severe toxicities. For a better treatment outcome, we developed an alternative therapeutic, doxorubicin (DOX)-loaded micelles targeting human mucin1 protein (MUC1) that is less toxic, more effective and targeted to TNBC. METHODS: From many candidate peptides, QNDRHPR-GGGSK (QND) and HSQLPQV-GGGSK (HSQ), were identified computationally, synthesized and purified using solid phase peptide synthesis and semi-preparative HPLC...
July 12, 2017: Current Drug Delivery
https://www.readbyqxmd.com/read/28707056/comparison-of-oncotype-dx%C3%A2-recurrence-score%C3%A2-with-other-risk-assessment-tools-including-the-nottingham-prognostic-index-in-the-identification-of-patients-with-low-risk-invasive-breast-cancer
#18
Maura Bríd Cotter, Alex Dakin, Aoife Maguire, Janice M Walshe, M John Kennedy, Barbara Dunne, Ciarán Ó Riain, Cecily M Quinn
Oncotype DX® is a gene expression assay that quantifies the risk of distant recurrence in patients with hormone receptor positive early breast cancer, publicly funded in Ireland since 2011. The aim of this study was to correlate Oncotype DX® risk groupings with traditional histopathological parameters and the results of other risk assessment tools including Recurrence Score-Pathology-Clinical (RSPC), Adjuvant Risk Index (Adj RI), Nottingham Prognostic Index (NPI) and the Adjuvant! Online 10-year score (AO)...
July 14, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/28706892/primary-osteosarcoma-of-the-breast-a-case-report
#19
Chan Seok Yoon, Sung Soo Kang
Primary osteosarcomas of the breast are extremely uncommon. Here we describe a case of a 77-year-old woman who presented with a hard mass on her right breast. Mammography and breast ultrasound demonstrated a round-shaped calcified mass on the right breast but the features were not definitely diagnostic. For diagnostic purposes, an excisional biopsy was performed and the mass proved to be a primary osteosarcoma of the breast by pathologic findings. PET-CT and whole body bone scan showed neither evidence of metastasis nor underlying bone lesions...
July 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28702894/21-gene-recurrence-score-and-locoregional-recurrence-in-lymph-node-negative-estrogen-receptor-positive-breast-cancer
#20
Gulisa Turashvili, Joanne F Chou, Edi Brogi, Monica Morrow, Maura Dickler, Larry Norton, Clifford Hudis, Hannah Y Wen
BACKGROUND/PURPOSE: The 21-gene recurrence score (RS) assay evaluates the likelihood of distant recurrence and benefit of chemotherapy in lymph node-negative, estrogen receptor (ER)-positive, HER2-negative breast cancer patients. The RS categories are associated with the risk of locoregional recurrence (LRR) in some, but not all studies. METHODS: We reviewed the institutional database to identify consecutive female patients with node-negative, ER+/HER2- breast carcinoma tested for the 21-gene RS assay and treated at our center from 2008 to 2013...
July 12, 2017: Breast Cancer Research and Treatment
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