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Breast cancer prevention

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https://www.readbyqxmd.com/read/28644496/the-role-of-soybean-extracts-and-isoflavones-in-hormone-dependent-breast-cancer-aromatase-activity-and-biological-effects
#1
Cristina Amaral, Maria Regina T Toloi, Luis Daniel Vasconcelos, Maria José V Fonseca, Georgina Correia-da-Silva, Natércia Teixeira
Estrogen receptor-positive (ER(+)) breast cancer is the most common cause of cancer death in women worldwide. Nowadays, the relationship between soya diet and breast cancer is controversial due to the unknown role of its isoflavones, genistein (G) and daidzein (D). In this work, we investigated not only the anti-tumor properties of a soybean extract (NBSE) but also whether the biotransformation of extract (BSE) by the fungus Aspergillus awamori increased its effectiveness. The BSE showed a stronger anti-aromatase activity and anti-proliferative efficacy in ER(+) aromatase-overexpressing breast cancer cells...
June 23, 2017: Food & Function
https://www.readbyqxmd.com/read/28644334/clinical-updates-in-women-s-health-care-summary-gynecologic-and-obstetric-care-for-breast-cancer-survivors-primary-and-preventive-care-review
#2
Jennifer Griffin Miller
Breast cancer treatment has an impact on the physical, psychologic, sexual, and reproductive aspects of women's lives. Therefore, it is important for obstetrician-gynecologists to be well versed in the screening, diagnosis, and management of breast cancer. This monograph is an overview of critical issues related to the provision of ongoing care to breast cancer survivors.
July 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28644128/intraductal-cisplatin-treatment-in-a-brca-associated-breast-cancer-mouse-model-attenuates-tumor-development-but-leads-to-systemic-tumors-in-aged-female-mice
#3
Jolien S de Groot, Paul J van Diest, Miranda van Amersfoort, Eva J Vlug, Xiaojuan Pan, Natalie D Ter Hoeve, Hilde Rosing, Jos H Beijnen, Sameh A Youssef, Alain de Bruin, Jos Jonkers, Elsken van der Wall, Patrick W B Derksen
BRCA deficiency predisposes to the development of invasive breast cancer. In BRCA mutation carriers this risk can increase up to 80%. Currently, bilateral prophylactic mastectomy and prophylactic bilateral salpingo-oophorectomy are the only preventive, albeit radical invasive strategies to prevent breast cancer in BRCA mutation carriers. An alternative non-invasive way to prevent BRCA1-associated breast cancer may be local prophylactic treatment via the nipple.Using a non-invasive intraductal (ID) preclinical intervention strategy, we explored the use of combined cisplatin and poly (ADP)-ribose polymerase 1 (PARP1) inhibition to prevent the development of hereditary breast cancer...
June 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28643731/cardiotoxic-effects-of-radiotherapy-and-strategies-to-reduce-them-in-patients-with-breast-cancer-an-overview
#4
REVIEW
Katarzyna Rygiel
Cardiotoxicity of various anticancer therapies, including radiotherapy (RT), can lead to cardiovascular (CV) complications, and their severity depends on many factors, including the site of action, the applied dose, the method of administration, the presence of pre-existing CV diseases, or CV risk factors, the individual patient characteristics, and the current or previous use of antineoplastic therapies. Cardiotoxicity can occur immediately upon administration of the anticancer therapy or it may have a delayed onset (months or years after the treatment)...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28643271/demographic-predictors-and-cancer-screening-among-asian-americans-in-michigan-role-of-refugee-status
#5
Tsu-Yin Wu, Yeyun Park
Although the Asian American population has steadily increased since 1980s, there remains a paucity of literature on cancer screening utilization on this population. The purpose of this study was to evaluate preventive health and screening practices by examining demographic predictors of health and screening behaviors among 217 Asian Americans living in state of Michigan. Several demographic and acculturation-related factors were found to be associated with "ever screened" status in the bivariate analyses. This included the examination of the relationships among refugee status and cancer screening practices among Asian Americans...
June 22, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28641369/markers-of-inflammation-and-incident-breast-cancer-risk-in-the-women-s-health-study
#6
Deirdre K Tobias, Akintunde O Akinkuolie, Paulette D Chandler, Patrick R Lawler, JoAnn E Manson, Julie E Buring, Paul M Ridker, Lu Wang, I-Min Lee, Samia Mora
Chronic inflammation may be a risk factor for breast cancer development and progression, yet which inflammatory biomarkers and pathways are relevant is unknown. The study included 27,071 Women's Health Study participants (mean, 54.5 years old) free of cancer and cardiovascular disease at enrollment (1992 to 1995) with baseline measures of four inflammatory biomarkers: high sensitivity C-reactive protein (hsCRP), fibrinogen, N-acetyl side-chains of acute phase proteins (GlycA), and soluble intercellular adhesion molecule-1 (sICAM-1)...
June 21, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28640166/missing-documentation-in-breast-cancer-survivors-genitourinary-syndrome-of-menopause
#7
Elise D Cook, Elena I Iglehart, George Baum, Leslie L Schover, Lonzetta L Newman
OBJECTIVE: Breast cancer survivors often take hormonal treatments to prevent the recurrence of breast cancer, particularly aromatase inhibitors that can worsen the symptoms of genitourinary syndrome of menopause (GSM) such as dyspareunia, dysuria, and urinary incontinence, all of which may adversely affect survivors' quality of life. Few breast cancer survivors experiencing GSM receive adequate assessment or treatment. METHODS: In this descriptive study, we reviewed medical records for documented GSM and any treatments administered or referrals for treatment in 800 female patients who visited the Breast Cancer Survivorship Clinic at a comprehensive cancer center between July 1, 2010 and June 30, 2011, either at least 5 years after completion of treatment for invasive breast cancer or at least 6 months after completion of treatment for ductal carcinoma in situ...
June 19, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28640164/associations-between-postmenopausal-endogenous-sex-hormones-and-c-reactive-protein-a-clearer-picture-with-regional-adiposity-adjustment
#8
Shannon M Conroy, Heather K Neilson, Rachel O'Reilly, Christy G Woolcott, Frank Z Stanczyk, Kerry S Courneya, Christine M Friedenreich
OBJECTIVE: To better understand the pathogenesis of inflammatory-related diseases after menopause, we studied the adiposity-independent association between endogenous sex hormones and C-reactive protein (CRP), a biomarker of inflammation. METHODS: We conducted a secondary, cross-sectional analysis of baseline data from the Alberta Physical Activity and Breast Cancer Prevention Trial (2003-2007), including 319 healthy, postmenopausal women not using hormone therapy...
June 19, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28639157/exercise-for-improving-bone-health-in-women-treated-for-stages-i-iii-breast-cancer-a-systematic-review-and-meta-analyses
#9
REVIEW
Canan P Fornusek, Sharon L Kilbreath
PURPOSE: The purpose of this study was to evaluate the efficacy of exercise, either alone or in combination with other interventions, compared to a control, for the preservation of bone mineral density (BMD) in early breast cancer (BC) patients. METHODS: A systematic search was conducted to identify randomized or quasi-randomized trials which met inclusion criteria including prescribed exercise for ≥12 months. Ten publications from seven randomized controlled trials (RCTs), involving 1199 participants, were identified...
June 21, 2017: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/28639029/cox2-induction-a-mechanism-of-endocrine-breast-cancer-resistance
#10
Brandi L Clark, Michael A Murphy, Landry K Kamdem
PURPOSE: Urine prostaglandin E2 (PGE2) levels have shown to be a risk factor of breast cancer, and the use of nonsteroidal anti-inflammatory drugs (NSAIDs) is known to be beneficial in preventing breast cancer risk and/or recurrence with or without aromatase inhibitors. We hypothesized that the use of an aromatase inhibitor triggers the activation of the inflammatory pathway via release of PGE2. METHODS: A single oral 25 mg dose of an aromatase inhibitor (exemestane) was given to 14 healthy postmenopausal female volunteers...
June 21, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28638475/tamoxifen-activates-nrf2-dependent-sqstm1-transcription-to-promote-endometrial-hyperplasia
#11
Lifeng Feng, Jiaqiu Li, Lixian Yang, Libo Zhu, Xiufeng Huang, Shuzheng Zhang, Likang Luo, Zhinong Jiang, Tingting Jiang, Wenxia Xu, Xian Wang, Hongchuan Jin
Long-term application of Tamoxifen (TAM) is usually recommended for hormone receptor positive breast cancer patients. Unfortunately, TAM will inevitably increase the incidence of endometrial hyperplasia even endometrial cancer. Despite of substantial investigations, no effective approaches to prevent TAM-induced endometrial carcinogenesis have been acknowledged. In this study, we found that inhibition of Nrf2 could be valuable to prevent TAM-induced endometrial hyperplasia. Upon TAM treatment, the mRNA and protein expression of autophagy adaptor SQSTM1 was specifically increased in endometrial cells but not breast cancer cells...
2017: Theranostics
https://www.readbyqxmd.com/read/28634625/serum-antioxidant-capacity-biochemical-profile-and-body-composition-of-breast-cancer-survivors-in-a-randomized-mediterranean-dietary-intervention-study
#12
Maria Skouroliakou, D Grosomanidis, P Massara, C Kostara, P Papandreou, D Ntountaniotis, G Xepapadakis
PURPOSE: Increasing evidence suggests that Mediterranean Diet (MD) is correlated with reduced risk of breast cancer (BC) and cancer mortality, since it modifies patients' serum antioxidant capacity, body composition and biochemical parameters. The aim of the study was to investigate whether a dietary intervention based on MD has a beneficial effect on these factors. METHODS: In this intervention study, seventy female BC survivors were randomly assigned to (1) the intervention group (personalized dietary intervention based on MD) and (2) the control group (received the updated American Cancer Society Guidelines on Nutrition and Physical Activity for Cancer Prevention and ad libitum diet)...
June 20, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28634075/mint3-in-bone-marrow-derived-cells-promotes-lung-metastasis-in-breast-cancer-model-mice
#13
Toshiro Hara, Yoshinori Murakami, Motoharu Seiki, Takeharu Sakamoto
Breast cancer is one of the most common cancers in women in the world. Although breast cancer is well treatable at the early stage, patients with distant metastases show a poor prognosis. Data from recent studies using transplantation models indicate that Mint3/APBA3 might promote breast cancer malignancy. However, whether Mint3 indeed contributes to tumor development, progression, or metastasis in vivo remains unclear. To address this, here we examined whether Mint3 depletion affects tumor malignancy in MMTV-PyMT breast cancer model mice...
June 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28633870/omega-3-free-fatty-acids-attenuate-insulin-promoted-breast-cancer-cell-proliferation
#14
Yang Guo, Sheng-Long Zhu, Yi-Kuan Wu, Zhao He, Yong-Quan Chen
High insulin levels in obese people are considered as a risk factor to induce breast carcinogenesis. And consumption of fish oils which mainly contain omega-3 fatty acids is associated with a reduced risk of breast cancer. However, whether omega-3 free fatty acids (FFAs) modulate insulin signaling pathway to prevent breast cancer is poorly understood. The current study tested the hypothesis that omega-3 FFAs attenuate insulin-induced breast cancer cell proliferation and regulate insulin signaling pathway. We show here that omega-3 FFAs attenuate MCF-7 cell proliferation and Akt and Erk1/2 phosphorylation levels stimulated by insulin...
June 2017: Nutrition Research
https://www.readbyqxmd.com/read/28632938/mek-inhibitors-induce-akt-activation-and-drug-resistance-by-suppressing-negative-feedback-erk-mediated-her2-phosphorylation-at-thr701
#15
Chia-Hung Chen, Te-Chun Hsia, Ming-Hsin Yeh, Tsung-Wei Chen, Yun-Ju Chen, Jung-Tsu Chen, Ya-Ling Wei, Chih-Yen Tu, Wei-Chien Huang
Targeting the MEK/ERK pathway has been viewed as a promising strategy for cancer therapy. However, MEK inhibition leads to the compensatory PI3K/AKT activation and thus contributes to the desensitization of cancer cells to MEK inhibitors. The underlying molecular mechanism of this event is not yet understood. In this study, our data showed that the induction of Akt activity by MEK inhibitors was specifically observed in HER2-positive breast cancer cells. Silence of HER2, or overexpression of HER2 kinase-dead mutant, prevents the induction of Akt activation in response to MEK inhibition, indicating HER2 as a critical regulator for this event...
June 20, 2017: Molecular Oncology
https://www.readbyqxmd.com/read/28630214/patient-derived-interstitial-fluids-and-predisposition-to-aggressive-sporadic-breast-cancer-through-collagen-remodeling-and-inactivation-of-p53
#16
Timothy Kenny, Hank Schmidt, Kerin Adelson, Yujin Hoshida, Anna P Koh, Nagma Shah, John P Mandeli, Jess Ting, Doris Germain
Despite the fact that interstitial fluid (IF) represents a third of our body fluid, it is the most poorly understood body fluid in medicine. Increased IF pressure is thought to result from the increased deposition of extracellular matrix in the affected tissue preventing its reabsorption. In the cancer field, increased rigidity surrounding a cancerous mass remains the main reason that palpation and radiological examination, such as mammography, are used for cancer detection. While the pressure produced by IF has been considered, the biochemical composition of IF has not been considered in its effect on tumors...
June 19, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28627150/-applying-a-set-of-indicators-to-evaluate-the-primary-health-care
#17
Antonio Giampietro Russo, Maria Teresa Greco
OBJECTIVES: to develop a system of indicators to monitor the quality of health care, in terms of safety, effectiveness, and appropriateness to allow the integrated promotion of the welfare of the effectiveness and quality. DESIGN: retrospective study. SETTING AND PARTICIPANTS: all general practitioners (GPs) with at least 100 patients in loading at 1.1.2015 were included. The setting chosen is the Primary Care of the Agency for Health Protection of the Province of Milan (Northern Italy)...
January 2017: Epidemiologia e Prevenzione
https://www.readbyqxmd.com/read/28624541/the-high-prevalence-and-clinical-socio-demographic-correlates-of-miscarriages-among-flight-attendants
#18
Bettina Heidecker, Rachel Maureen Spencer, Victoria Hayes, Sarah Hall, Nisha Parikh, Eveline Oestreicher Stock, Rita Redberg
BACKGROUND: There are many occupational health hazards associated with long hours of air travel including cosmic radiation exposure, circadian rhythm disruptions and secondhand smoke exposure prior, for flight attendants who flew prior to smoking bans initiated in the 90s. Previous studies in flight attendants have found increased incidence of breast cancer and melanoma. However, there is little information on the relationship of airline travel and reproductive health in flight attendants...
June 14, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28620703/epidemiology-and-biology-of-physical-activity-and-cancer-recurrence
#19
REVIEW
Christine M Friedenreich, Eileen Shaw, Heather K Neilson, Darren R Brenner
Physical activity is emerging from epidemiologic research as a lifestyle factor that may improve survival from colorectal, breast, and prostate cancers. However, there is considerably less evidence relating physical activity to cancer recurrence and the biologic mechanisms underlying this association remain unclear. Cancer patients are surviving longer than ever before, and fear of cancer recurrence is an important concern. Herein, we provide an overview of the current epidemiologic evidence relating physical activity to cancer recurrence...
June 15, 2017: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/28620440/feeling-cold-and-other-underestimated-symptoms-in-breast-cancer-anecdotes-or-individual-profiles-for-advanced-patient-stratification
#20
REVIEW
Olga Golubnitschaja
Breast cancer (BC) epidemic is recognised as being characteristic for the early twenty-first century. BC is a multifactorial disease, and a spectrum of modifiable (preventable) factors significantly increasing risks has been described. This article highlights a series of underestimated symptoms for consequent BC risk assessment and patient stratification. Phenomena of the deficient thermoregulation, altered sensitivity to different stimuli (pain, thirst, smell, light, stress provocation), dehydration, altered circadian and sleep patterns, tendency towards headache, migraine attacks and dizziness, as well as local and systemic hypoxic effects are discussed for BC patients providing functional links and proposing new approaches in the overall BC management...
March 2017: EPMA Journal
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