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Pregnancy associated breast cancer

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https://www.readbyqxmd.com/read/28423605/pregnancy-at-early-age-is-associated-with-a-reduction-of-progesterone-responsive-cells-and-epithelial-wnt-signaling-in-human-breast-tissue
#1
Simone Muenst, Robert Mechera, Silvio Däster, Salvatore Piscuoglio, Charlotte K Y Ng, Fabienne Meier-Abt, Walter P Weber, Savas D Soysal
BACKGROUND: Pregnancy at early age is the most significant modifiable factor which consistently decreases lifetime breast cancer risk. However, the underlying mechanisms haven't been conclusively identified. Studies in mice suggest a reduction in progesterone-receptor (PR) sensitive epithelial cells as well as a downregulation of the Wnt signaling pathway as being one of the main mechanisms for the protective effect of early pregnancy. The aim of our study was to validate these findings in humans...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28381301/meanings-of-abortion-in-context-accounts-of-abortion-in-the-lives-of-women-diagnosed-with-breast-cancer
#2
Maggie Kirkman, Carmel Apicella, Jillian Graham, Martha Hickey, John L Hopper, Louise Keogh, Ingrid Winship, Jane Fisher
BACKGROUND: A breast cancer diagnosis and an abortion can each be pivotal moments in a woman's life. Research on abortion and breast cancer deals predominantly with women diagnosed during pregnancy who might be advised to have an abortion. The other-discredited but persistent-association is that abortions cause breast cancer. The aim here was to understand some of the ways in which women themselves might experience the convergence of abortion and breast cancer. METHODS: Among 50 women recruited from the Australian Breast Cancer Family Study and interviewed in depth about what it meant to have a breast cancer diagnosis before the age of 41, five spontaneously told of having or contemplating an abortion...
April 5, 2017: BMC Women's Health
https://www.readbyqxmd.com/read/28365953/risk-factors-and-histopathological-features-of-breast-cancer-among-women-with-different-menopausal-status-and-age-at-diagnosis
#3
Ozan Unlu, Dilara Kiyak, Canan Caka, Merve Yagmur, Huseyin G Yavas, Fadime Erdogan, Nazli Sener, Bahar Oguz, Taner Babacan, Kadri Altundag
PURPOSE: Although there are studies that investigate different risk factors and clinicopathological features of breast cancer in women at different age groups and menopausal status, there is a need for studies with larger study populations due to controversial findings. We conducted this study to identify demographic parameters in breast cancer patients and histopathological features of the tumors for different age groups and compare them to demonstrate significant differences, if any...
January 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28365832/prognosis-of-pregnancy-associated-breast-cancer
#4
REVIEW
Guek Eng Lee, Erica L Mayer, Ann Partridge
Conventionally, breast cancer diagnosed during pregnancy and within the years following have been referred to collectively as pregnancy-associated breast cancer. However, increasing evidence suggests that breast cancer diagnosed during pregnancy is a different entity from that diagnosed postpartum, both in terms of prognosis and biology. Given the increasing number of women who find themselves diagnosed with breast cancer during or following a pregnancy, future research and discussion should separate these two into distinct groups: breast cancer diagnosed during pregnancy and breast cancer diagnosed postpartum in an effort to enhance our understanding to inform and improve clinical management and counseling...
April 1, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28360138/mathematical-modeling-links-pregnancy-associated-changes-and-breast-cancer-risk
#5
Daniel P Temko, Yu-Kang Cheng, Kornelia Polyak, Franziska Michor
Recent debate has concentrated on the contribution of bad luck to cancer development. The tight correlation between the number of tissue-specific stem cell divisions and cancer risk of the same tissue suggests that bad luck has an important role to play in tumor development, but the full extent of this contribution remains an open question. Improved understanding of the interplay between extrinsic and intrinsic factors at the molecular level is one promising route to identifying the limits on extrinsic control of tumor initiation, which is highly relevant to cancer prevention...
March 30, 2017: Cancer Research
https://www.readbyqxmd.com/read/28334337/birth-outcomes-among-adolescent-and-young-adult-cancer-survivors
#6
Chelsea Anderson, Stephanie M Engel, Jennifer E Mersereau, Kristin Z Black, William A Wood, Carey K Anders, Hazel B Nichols
Importance: Cancer diagnosis and treatment may adversely affect reproductive outcomes among female cancer survivors. Objective: To compare the birth outcomes of adolescent and young adult cancer survivors (AYA [diagnosed at ages 15-39 years]) with those of women without a cancer diagnosis. Design, Setting, and Participants: The North Carolina Central Cancer Registry (CCR) was used to identify female AYA cancer survivors diagnosed from January 2000 to December 2013; CCR records were linked to statewide birth certificate files from January 2000 to December 2014 to identify postdiagnosis live births to AYA survivors (n = 2598)...
March 23, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28323962/men1-dependent-breast-cancer-indication-for-early-screening-results-from-the-dutch-men1-study-group
#7
Rachel S van Leeuwaarde, Koen Dreijerink, Margreet G Ausems, Hanneke J Beijers, Olaf M Dekkers, Wouter W de Herder, Anouk N van der Horst-Schrivers, Madeleine L Drent, Peter H Bisschop, Bas Havekes, Petra H M Peeters, Ruud M Pijnappel, Menno R Vriens, Gerlof D Valk
Objective: Multiple Endocrine Neoplasia type 1 (MEN1) is associated with an early onset elevated breast cancer risk. This finding potentially has implications for breast cancer screening for females with MEN1. Considering the impact for females with MEN1, regarding distress and anxiety, it is necessary to assess if other risk factors are involved to identify those at greatest risk. Design: A cross-sectional case control study was performed using the Dutch MEN1 cohort, including >90% of the Dutch MEN1 population of 18 years and older...
March 17, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28288183/maternal-use-of-drug-substrates-of-placental-transporters-and-the-effect-of-transporter-mediated-drug-interactions-on-the-risk-of-congenital-anomalies
#8
Aizati N A Daud, Jorieke E H Bergman, Monika P Oktora, Wilhelmina S Kerstjens-Frederikse, Henk Groen, Jens H Bos, Eelko Hak, Bob Wilffert
BACKGROUND: A number of transporter proteins are expressed in the placenta, and they facilitate the placental transfer of drugs. The inhibition of P-glycoprotein (P-gp) was previously found to be associated with an increase in the risk of congenital anomalies caused by drug substrates of this transporter. We now explore the role of other placental transporter proteins. METHODS: A population-based case-referent study was performed using cases with congenital anomalies (N = 5,131) from EUROCAT Northern Netherlands, a registry of congenital anomalies...
2017: PloS One
https://www.readbyqxmd.com/read/28288025/coffee-and-cancer-risk-a-summary-overview
#9
Gianfranco Alicandro, Alessandra Tavani, Carlo La Vecchia
We reviewed available evidence on coffee drinking and the risk of all cancers and selected cancers updated to May 2016. Coffee consumption is not associated with overall cancer risk. A meta-analysis reported a pooled relative risk (RR) for an increment of 1 cup of coffee/day of 1.00 [95% confidence interval (CI): 0.99-1.01] for all cancers. Coffee drinking is associated with a reduced risk of liver cancer. A meta-analysis of cohort studies found an RR for an increment of consumption of 1 cup/day of 0.85 (95% CI: 0...
March 10, 2017: European Journal of Cancer Prevention
https://www.readbyqxmd.com/read/28278319/association-of-the-timing-of-pregnancy-with-survival-in-women-with-breast-cancer
#10
Javaid Iqbal, Eitan Amir, Paula A Rochon, Vasily Giannakeas, Ping Sun, Steven A Narod
Importance: Increasing numbers of women experience pregnancy around the time of, or after, a diagnosis of breast cancer. Understanding the effect of pregnancy on survival in women with breast cancer will help in the counseling and treatment of these women. Objective: To compare the overall survival of women diagnosed with breast cancer during pregnancy or in the postpartum period with that of women who had breast cancer but did not become pregnant. Design, Setting, and Participants: This population-based, retrospective cohort study linked health administrative databases in Ontario, Canada, comprising 7553 women aged 20 to 45 years at the time of diagnosis with invasive breast cancer, from January 1, 2003, to December 31, 2014...
March 9, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28265843/validity-of-self-reported-fertility-threatening-cancer-treatments-in-female-young-adult-cancer-survivors
#11
Samantha C Roberts, Amber Knight, Brian W Whitcomb, Jessica R Gorman, Andrew C Dietz, H Irene Su
PURPOSE: Detailed cancer treatment information is important to fertility and pregnancy care of female young adult cancer survivors. Accuracy of self-report of treatments that impact fertility and pregnancy is unknown. This study assessed agreement between self-report and medical records on receipt of fertility-threatening treatments. METHODS: A national cohort study of female young adult cancer survivors reported cancer treatments via Web-based questionnaires. Primary cancer treatment records were abstracted...
March 6, 2017: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/28264686/reproductive-risk-factors-associated-with-breast-cancer-in-women-in-bangui-a-case-control-study
#12
Augustin Balekouzou, Ping Yin, Christian Maucler Pamatika, Cavin Epie Bekolo, Sylvain Wilfrid Nambei, Marceline Djeintote, Komlan Kota, Christian Diamont Mossoro-Kpinde, Chang Shu, Minghui Yin, Zhen Fu, Tingting Qing, Mingming Yan, Jianyuan Zhang, Shaojun Chen, Hongyu Li, Zhongyu Xu, Boniface Koffi
BACKGROUND: Breast cancer (breast Ca) is recognised as a major public health problem in the world. Data on reproductive factors associated with breast Ca in the Central African Republic (CAR) is very limited. This study aimed to identify reproductive variables as risk factors for breast Ca in CAR women. METHODS: A case-control study was conducted among 174 cases of breast Ca confirmed at the Pathology Unit of the National Laboratory in Bangui between 2003 and 2015 and 348 age-matched controls...
March 6, 2017: BMC Women's Health
https://www.readbyqxmd.com/read/28231427/risk-factors-of-female-breast-cancer-in-vietnam-a-case-control-study
#13
Phuong Dung Yun Trieu, Claudia Mello-Thoms, Jenny K Peat, Thuan Doan Do, Patrick C Brennan
Purpose: Rates of women with breast cancer have increased rapidly in recent years in Vietnam, with over 10,000 new patients contracting the disease every year. This study was conducted to identify demographic, reproductive and lifestyle risk factors for breast cancer in Vietnam. Materials and Methods: Breast density, demographic, reproductive and lifestyle data of 269 women with breast cancer and 519 age-matched controls were collected in the two largest oncology hospitals in Vietnam (one in the north and one in the south)...
February 20, 2017: Cancer Research and Treatment: Official Journal of Korean Cancer Association
https://www.readbyqxmd.com/read/28220257/impact-of-prior-breast-cancer-on-mode-of-delivery-and-pregnancy-associated-disorders-a-retrospective-analysis-of-subsequent-pregnancy-outcomes
#14
Louis Jacob, Matthias Kalder, Birgit Arabin, Karel Kostev
PURPOSE: The aim of this paper is to analyze the impact of prior breast cancer (BC) on mode of delivery and pregnancy-associated disorders. METHODS: A database from 262 German gynecological practices including 289,712 women between the ages of 18 and 45 with documented pregnancies between 2000 and 2014 was used to search for patients with a history of BC up to 10 years prior to pregnancy. A total of 165 patients with a history of BC were found and matched with 165 patients without a history of any cancer (1:1) by age, physician, obesity, and documented referral to a fertility center up to 12 months before the index pregnancy...
February 20, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28208154/gestational-diabetes-mellitus-may-be-associated-with-increased-risk-of-breast-cancer
#15
Yong-Moon Mark Park, Katie M O'Brien, Shanshan Zhao, Clarice R Weinberg, Donna D Baird, Dale P Sandler
BACKGROUND: Although a positive association between type 2 diabetes and breast cancer has been reported, an association with gestational diabetes mellitus (GDM) is less clear. METHODS: The Sister Study enroled 50 884 women aged 35-74 years, from 2003 through 2009. Cox proportional hazards models were used to estimate breast cancer risk in relation to GDM. RESULTS: Ever having GDM was not associated with breast cancer overall (hazards ratio (HR)=1...
March 28, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28191695/breast-cancer-in-pregnancy-avoiding-fetal-harm-when-maternal-treatment-is-necessary
#16
Christina N Cordeiro, Mary L Gemignani
The management of breast cancer during pregnancy poses unique challenges and requires a multi-disciplinary approach. In this review, we discuss the treatment of breast cancer in pregnancy and recent updates regarding the safety of surgical and chemotherapeutic treatments, including both oncologic and fetal outcomes. The treatment of breast cancer during pregnancy mirrors that outside of pregnancy, with a few important differences dictated by the balance of maternal versus fetal health. Overall, surgical treatment, neo-adjuvant chemotherapy, and/or adjuvant chemotherapy are feasible in most women during pregnancy...
March 2017: Breast Journal
https://www.readbyqxmd.com/read/28170295/after-chemotherapy-treatment-for-maternal-cancer-during-pregnancy-is-breastfeeding-possible
#17
Stephen Stopenski, Anum Aslam, Xinmin Zhang, Elyce Cardonick
OBJECTIVE: To report breastfeeding complaints of women diagnosed with cancer during pregnancy and correlate success with characteristics of their treatment. MATERIALS AND METHODS: This is a prospective cohort study of women diagnosed with cancer during pregnancy who attempted breastfeeding. We surveyed participants about breast engorgement, milk let down, and consistent breast milk production through mailed questionnaires. Treatment details, including the type and number of chemotherapy cycles given during pregnancy and antepartum or postpartum depression, were collected...
March 2017: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/28142043/initiators-and-promoters-for-the-occurrence-of-screen-detected-breast-cancer-and-the-progression-to-clinically-detected-interval-breast-cancer
#18
Amy Ming-Fang Yen, Wendy Yi-Ying Wu, Laszlo Tabar, Stephen W Duffy, Robert A Smith, Hsiu-Hsi Chen
BACKGROUND: The risk factors responsible for breast cancer have been well documented, but the roles of risk factors as initiators, causing the occurrence of screen-detected breast cancer, or promoters, responsible for the progression of the screen-detected to the clinically-detected breast cancer, have been scarcely evaluated. METHODS: We used data from women in a cohort in Kopparberg (Dalarna), Sweden between 1977 and 2010. Conventional risk factors, breast density, and tumor-specific biomarkers are superimposed to the temporal course of the natural history of the disease...
March 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/28122888/response-to-ovarian-stimulation-is-not-impacted-by-a-breast-cancer-diagnosis
#19
Molly M Quinn, Hakan Cakmak, Joseph M Letourneau, Marcelle I Cedars, Mitchell P Rosen
STUDY QUESTION: Does a breast cancer diagnosis impact ovarian function in the setting of fertility preservation? SUMMARY ANSWER: Ovarian reserve and ovarian stimulation outcomes are similar in patients with a new diagnosis of breast cancer and patients undergoing elective fertility preservation. WHAT IS KNOWN ALREADY: Prior studies, with small study populations, lack of controlling for individual differences in ovarian reserve and infertile controls, have reported conflicting outcomes for cancer patients undergoing ovarian stimulation for fertility preservation...
March 1, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28114999/parity-hormones-and-breast-cancer-subtypes-results-from-a-large-nested-case-control-study-in-a-national-screening-program
#20
Merete Ellingjord-Dale, Linda Vos, Steinar Tretli, Solveig Hofvind, Isabel Dos-Santos-Silva, Giske Ursin
BACKGROUND: Breast cancer comprises several molecular subtypes with different prognoses and possibly different etiology. Reproductive and hormonal factors are associated with breast cancer overall, and with luminal subtypes, but the associations with other subtypes are unclear. We used data from a national screening program to conduct a large nested case-control study. METHODS: We conducted a nested case-control study on participants in the Norwegian Breast Cancer Screening Program in 2006 - 2014...
January 23, 2017: Breast Cancer Research: BCR
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