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Breast cancer and early adulthood

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https://www.readbyqxmd.com/read/28500399/childhood-and-teenage-physical-activity-and-breast-cancer-risk
#1
Nicole M Niehoff, Alexandra J White, Dale P Sandler
PURPOSE: Adult physical activity is associated with reduced breast cancer risk, but few studies have evaluated activity before adulthood. Early life may be an important period because of rapid breast development and hormonal changes. This study contributes new information by examining childhood (ages 5-12) and teenage (ages 13-19) activity separately and overall. METHODS: The Sister Study is a cohort of 50,884 women aged 35-74. Women reported age 5-19 sports/exercise activities and age 10 and 16 unstructured activities...
May 12, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28399571/testing-for-gene-environment-interactions-using-a-prospective-family-cohort-design-body-mass-index-in-early-and-later-adulthood-and-risk-of-breast-cancer
#2
Gillian S Dite, Robert J MacInnis, Adrian Bickerstaffe, James G Dowty, Roger L Milne, Antonis C Antoniou, Prue Weideman, Carmel Apicella, Graham G Giles, Melissa C Southey, Mark A Jenkins, Kelly-Anne Phillips, Aung Ko Win, Mary Beth Terry, John L Hopper
The ability to classify people according to their underlying genetic susceptibility to a disease is increasing with new knowledge, better family data, and more sophisticated risk prediction models, allowing for more effective prevention and screening. To do so, however, we need to know whether risk associations are the same for people with different genetic susceptibilities. To illustrate one way to estimate such gene-environment interactions, we used prospective data from 3 Australian family cancer cohort studies, 2 enriched for familial risk of breast cancer...
March 15, 2017: American Journal of Epidemiology
https://www.readbyqxmd.com/read/28360138/mathematical-modeling-links-pregnancy-associated-changes-and-breast-cancer-risk
#3
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/28249935/an-adolescent-and-early-adulthood-dietary-pattern-associated-with-inflammation-and-the-incidence-of-breast-cancer
#4
Holly R Harris, Walter C Willett, Rita L Vaidya, Karin B Michels
Adolescence is a highly susceptible period for mammary carcinogenesis, but few prospective studies have examined the role of adolescent diet in breast cancer risk. Reduced rank regression has previously been used to identify a dietary pattern associated with markers of inflammation (C-reactive protein, IL6, and TNFα receptor 2). We investigated whether an adolescent and early adulthood inflammatory dietary pattern was associated with breast cancer among 45,204 women in the Nurses' Health Study II using reduced rank regression...
March 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/28133728/weight-and-weight-changes-in-early-adulthood-and-later-breast-cancer-risk
#5
Bernard Rosner, A Heather Eliassen, Adetunji T Toriola, Wendy Y Chen, Susan E Hankinson, Walter C Willett, Catherine S Berkey, Graham A Colditz
Obesity is a well-established cause of postmenopausal breast cancer. However, early life adiposity is inversely associated with breast cancer incidence. To understand these conflicting relations, we use validated measures to assess adiposity in childhood and late adolescence, as well as weight change, in relation to total invasive breast cancer incidence and receptor subtypes. We conducted a prospective observational study among 74,177 women from the Nurses' Health Study from 1980-2012, with updated risk factors every 2 years during which 4,965 incident invasive breast cancers occurred...
May 1, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28069684/weight-fluctuation-and-cancer-risk-in-postmenopausal-women-the-women-s-health-initiative
#6
Laura M Welti, Daniel P Beavers, Bette J Caan, Haleh Sangi-Haghpeykar, Mara Z Vitolins, Kristen M Beavers
Background: Weight cycling, defined by an intentional weight loss and subsequent regain, commonly occurs in overweight and obese women and is associated with some negative health outcomes. We examined the role of various weight-change patterns during early to mid-adulthood and associated risk of highly prevalent, obesity-related cancers (breast, endometrial, and colorectal) in postmenopausal women.Methods: A total of 80,943 postmenopausal women (age, 63.4 ± 7.4 years) in the Women's Health Initiative Observational Study were categorized by self-reported weight change (weight stable; weight gain; lost weight; weight cycled [1-3, 4-6, 7-10, >10 times]) during early to mid-adulthood (18-50 years)...
May 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28068940/early-life-socioeconomic-environment-and-mammographic-breast-density
#7
Parisa Tehranifar, Barbara A Cohn, Julie D Flom, Angeline Protacio, Piera Cirillo, L H Lumey, Karin B Michels, Mary Beth Terry
BACKGROUND: Early life social environment may influence breast cancer through shaping risk factors operating in early life, adolescence and adulthood, or may be associated with breast cancer risk independent of known risk factors. We investigated the associations between early life socioeconomic status (SES) and mammographic density, a strong risk factor for breast cancer, and the extent to which these associations were independent of risk factors across the lifecourse. METHODS: We used data from an adult follow-up study of two U...
January 10, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28062981/body-size-from-birth-through-adolescence-in-relation-to-risk-of-benign-breast-disease-in-young-women
#8
Catherine S Berkey, Bernard Rosner, Rulla M Tamimi, Walter C Willett, Martha Hickey, Adetunji Toriola, A Lindsay Frazier, Graham A Colditz
PURPOSE: Body size, from birth throughout adulthood, is associated with breast cancer risk, but few studies have investigated early-life body size and benign breast disease (BBD), a well-established breast cancer risk factor. We consider whether prenatal factors and size at birth, 10, 18 year, and intervening growth, are related to BBD risk. METHODS: The Growing Up Today Study includes 9032 females who completed questionnaires annually from 1996 to 2001, then 2003, 2005, 2007, 2010, and 2013...
February 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27983647/critical-function-of-prdm2-in-the-neoplastic-growth-of-testicular-germ-cell-tumors
#9
Erika Di Zazzo, Carola Porcile, Silvia Bartollino, Bruno Moncharmont
Testicular germ cell tumors (TGCTs) derive from primordial germ cells. Their maturation is blocked at different stages, reflecting histological tumor subtypes. A common genetic alteration in TGCT is a deletion of the chromosome 1 short arm, where the PRDM2 gene, belonging to the Positive Regulatory domain gene (PRDM) family, is located. Expression of PRDM2 gene is shifted in different human tumors, where the expression of the two principal protein forms coded by PRDM2 gene, RIZ1 and RIZ2, is frequently unbalanced...
December 14, 2016: Biology
https://www.readbyqxmd.com/read/27940981/the-association-between-adverse-childhood-experiences-and-risk-of-cancer-in-adulthood-a-systematic-review-of-the-literature
#10
REVIEW
Dawn M Holman, Katie A Ports, Natasha D Buchanan, Nikki A Hawkins, Melissa T Merrick, Marilyn Metzler, Katrina F Trivers
CONTEXT: Adverse childhood experiences (ACEs) can affect health and well-being across the life course. OBJECTIVE: This systematic review summarizes the literature on associations between ACEs and risk of cancer in adulthood. DATA SOURCES: We searched PubMed to identify relevant publications published on or before May 31, 2015. STUDY SELECTION: We included original research quantifying the association between ACEs and adult cancer incidence...
November 2016: Pediatrics
https://www.readbyqxmd.com/read/27913396/long-term-exposure-to-fine-particulate-matter-and-breast-cancer-incidence-in-the-danish-nurse-cohort-study
#11
Zorana Jovanovic Andersen, Line Ravnskjær, Klaus Kaae Andersen, Steffen Loft, Jørgen Brandt, Thomas Becker, Matthias Ketzel, Ole Hertel, Elsebeth Lynge, Elvira Vaclavik Bräuner
Background: An association between air pollution and breast cancer risk has been suggested, but evidence is sparse and inconclusive.Methods: We included 22,877 female nurses from the Danish Nurse Cohort who were recruited in 1993 or 1999 and followed them for incidence of breast cancer (N = 1,145) until 2013 in the Danish Cancer Register. We estimated annual mean concentrations of particulate matter with diameter <2.5 μg/m(3) (PM2.5) and <10 μg/m(3) (PM10), and nitrogen dioxide (NO2) at nurses' residences since 1990 using an atmospheric chemistry transport model...
December 2, 2016: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/27825136/pubertal-and-adult-windows-of-susceptibility-to-a-high-animal-fat-diet-in-trp53-null-mammary-tumorigenesis
#12
Yirong Zhu, Mark D Aupperlee, Yong Zhao, Ying Siow Tan, Erin L Kirk, Xuezheng Sun, Melissa A Troester, Richard C Schwartz, Sandra Z Haslam
Premenopausal breast cancer is associated with increased animal fat consumption among normal weight, but not overweight women (Farvid et al., 2014). Our previous findings in obesity-resistant BALB/c mice similarly showed promotion of carcinogen-induced mammary tumorigenesis by a diet high in saturated animal fat (HFD). This effect was specific to pubertal versus adult HFD. This study identifies the effects of HFD during puberty versus adulthood in Trp53-null transplant BALB/c mice and investigates its mechanism of enhancing tumorigenesis...
December 13, 2016: Oncotarget
https://www.readbyqxmd.com/read/27796946/overview-of-mammary-gland-development-a-comparison-of-mouse-and-human
#13
Sara McNally, Torsten Stein
The mouse mammary gland is widely used as a model for human breast cancer and has greatly added to our understanding of the molecular mechanisms involved in breast cancer development and progression. To fully appreciate the validity and limitations of the mouse model, it is essential to be aware of the similarities and also the differences that exist between the mouse mammary gland and the human breast. This introduction therefore describes the parallels and contrasts in mouse mammary gland and human breast morphogenesis from an early embryonic phase through to puberty, adulthood, pregnancy, parturition, and lactation, and finally the regressive stage of involution...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27765796/early-life-residence-fish-consumption-and-risk-of-breast-cancer
#14
Alfheidur Haraldsdottir, Laufey Steingrimsdottir, Unnur A Valdimarsdottir, Thor Aspelund, Laufey Tryggvadottir, Tamara B Harris, Lenore J Launer, Lorelei A Mucci, Edward L Giovannucci, Hans-Olov Adami, Vilmundur Gudnason, Johanna E Torfadottir
Background: Little is known about fish intake throughout the life course and the risk of breast cancer.Methods: We used data on the first residence of 9,340 women born 1908 to 1935 in the Reykjavik Study as well as food frequency data for different periods of life from a subgroup of the cohort entering the Age, Gene/Environment Susceptibility (AGES)-Reykjavik Study (n = 2,882).Results: During a mean follow-up of 27.3 years, 744 women were diagnosed with breast cancer in the Reykjavik Study. An inverse association of breast cancer was observed among women who lived through the puberty period in coastal villages, compared with women residing in the capital area [HR, 0...
March 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/27549771/endometriosis-and-mammographic-density-measurements-in-the-nurses-health-study-ii
#15
Leslie V Farland, Rulla M Tamimi, A Heather Eliassen, Donna Spiegelman, Kimberly A Bertrand, Stacey A Missmer
PURPOSE: Endometriosis and mammographic density have been hypothesized to be influenced by sex steroid hormonal exposures in adolescence and early adulthood. We investigated the association between endometriosis and mammographic density, a consistent and independent risk factor for breast cancer. METHODS: We conducted a cross-sectional analysis among 1,581 pre- and postmenopausal women not previously diagnosed with breast cancer in the Nurses' Health Study II cohort...
October 2016: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/27529652/duration-of-adulthood-overweight-obesity-and-cancer-risk-in-the-women-s-health-initiative-a-longitudinal-study-from-the-united-states
#16
MULTICENTER STUDY
Melina Arnold, Luohua Jiang, Marcia L Stefanick, Karen C Johnson, Dorothy S Lane, Erin S LeBlanc, Ross Prentice, Thomas E Rohan, Beverly M Snively, Mara Vitolins, Oleg Zaslavsky, Isabelle Soerjomataram, Hoda Anton-Culver
BACKGROUND: High body mass index (BMI) has become the leading risk factor of disease burden in high-income countries. While recent studies have suggested that the risk of cancer related to obesity is mediated by time, insights into the dose-response relationship and the cumulative impact of overweight and obesity during the life course on cancer risk remain scarce. To our knowledge, this study is the first to assess the impact of adulthood overweight and obesity duration on the risk of cancer in a large cohort of postmenopausal women...
August 2016: PLoS Medicine
https://www.readbyqxmd.com/read/27510186/lifetime-grain-consumption-and-breast-cancer-risk
#17
Maryam S Farvid, Eunyoung Cho, A Heather Eliassen, Wendy Y Chen, Walter C Willett
We evaluated individual grain-containing foods and whole and refined grain intake during adolescence, early adulthood, and premenopausal years in relation to breast cancer risk in the Nurses' Health Study II. Grain-containing food intakes were reported on a baseline dietary questionnaire (1991) and every 4 years thereafter. Among 90,516 premenopausal women aged 27-44 years, we prospectively identified 3235 invasive breast cancer cases during follow-up to 2013. 44,263 women reported their diet during high school, and from 1998 to 2013, 1347 breast cancer cases were identified among these women...
September 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27496084/risks-of-first-and-subsequent-cancers-among-tp53-mutation-carriers-in-the-national-cancer-institute-li-fraumeni-syndrome-cohort
#18
Phuong L Mai, Ana F Best, June A Peters, Rosamma M DeCastro, Payal P Khincha, Jennifer T Loud, Renée C Bremer, Philip S Rosenberg, Sharon A Savage
BACKGROUND: Li-Fraumeni syndrome (LFS) is an autosomal dominant cancer predisposition syndrome characterized by a very high lifetime cancer risk and an early age at diagnosis of a wide cancer spectrum. Precise estimates for the risk of first and subsequent cancers are lacking. METHODS: The National Cancer Institute's Li-Fraumeni Syndrome Study includes families meeting the diagnostic criteria for LFS or Li-Fraumeni-like syndrome, and individuals with a germline TP53 mutation, choroid plexus carcinoma, adrenocortical carcinoma, or ≥3 cancers...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27170029/fruit-and-vegetable-consumption-in-adolescence-and-early-adulthood-and-risk-of-breast-cancer-population-based-cohort-study
#19
Maryam S Farvid, Wendy Y Chen, Karin B Michels, Eunyoung Cho, Walter C Willett, A Heather Eliassen
OBJECTIVE: To evaluate the association between fruit and vegetable intake during adolescence and early adulthood and risk of breast cancer. DESIGN: Prospective cohort study. SETTING: Health professionals in the United States. PARTICIPANTS: 90 476 premenopausal women aged 27-44 from the Nurses' Health Study II who completed a questionnaire on diet in 1991 as well as 44 223 of those women who completed a questionnaire about their diet during adolescence in 1998...
May 11, 2016: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/27042159/weight-loss-reduces-basal-like-breast-cancer-through-kinome-reprogramming
#20
Yuanyuan Qin, Sneha Sundaram, Luma Essaid, Xin Chen, Samantha M Miller, Feng Yan, David B Darr, Joseph A Galanko, Stephanie A Montgomery, Michael B Major, Gary L Johnson, Melissa A Troester, Liza Makowski
BACKGROUND: Obesity is associated with an aggressive subtype of breast cancer called basal-like breast cancer (BBC). BBC has no targeted therapies, making the need for mechanistic insight urgent. Reducing adiposity in adulthood can lower incidence of BBC in humans. Thus, this study investigated whether a dietary intervention to reduce adiposity prior to tumor onset would reverse HFD-induced BBC. METHODS: Adult C3(1)-Tag mice were fed a low or high fat diet (LFD, HFD), and an obese group initially exposed to HFD was then switched to LFD to induce weight loss...
2016: Cancer Cell International
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