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Obesity and breast cancer

M C Gouveia, J P Vella, F R Cafeo, F L Affonso Fonseca, M R Bacci
OBJECTIVE: Irisin is a muscle-secreted protein released into the circulation by cleavage of fibronectin type III domain containing protein 5(FNDC5). Since its discovery in 2012, it has been the subject of many researches due to its physiological role. It is believed that understanding irisin's function may be the key to comprehend many diseases and their development. The aim of this study is to perform a systematic review in order to establish whether there is an association of irisin's levels with obesity, diabetes mellitus, non-alcoholic steatohepatitis, chronic kidney disease and cancer in terms of prognosis...
October 2016: European Review for Medical and Pharmacological Sciences
Kathleen A Griffith, Seon-Yoon Chung, Shijun Zhu, Alice S Ryan
OBJECTIVE: After chemotherapy for breast cancer, Black women gain more weight and have an increased mortality rate compared with White women. Our study objective was to compare biomarkers associated with obesity in Black women with and without a history of breast cancer. DESIGN: Case-control. SETTING: Academic/federal institution. PARTICIPANTS: Black women with a history of breast cancer (cases) and age-matched controls...
October 20, 2016: Ethnicity & Disease
L E Wilson, S Harlid, Z Xu, D P Sandler, J A Taylor
BACKGROUND/OBJECTIVES: The relationship between obesity and chronic disease risk is well-established; the underlying biological mechanisms driving this risk increase may include obesity-related epigenetic modifications. To explore this hypothesis, we conducted a genome-wide analysis of DNA methylation and body mass index (BMI) using data from a subset of women in the Sister Study. SUBJECTS/METHODS: The Sister Study is a cohort of 50 884 U.S. women who had a sister with breast cancer but were free of breast cancer themselves at enrollment...
October 24, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
Jeannine M Brant, Karyl Blaseg, Kathy Aders, Dona Oliver, Evan Gray, William N Dudley
PURPOSE/OBJECTIVES: To examine symptom and quality-of-life (QOL) trajectories in breast cancer and lymphoma survivors enrolled in a survivorship navigation intervention and to explore patient, caregiver, and primary care provider (PCP) satisfaction with receipt of a survivorship care plan (SCP). 
. DESIGN: Prospective, cohort, longitudinal.
. SETTING: The Billings Clinic, an integrated cancer center in Montana. 
. SAMPLE: 67 patients with breast cancer or lymphoma who recently completed cancer treatment, along with 39 of their caregivers and 23 PCPs...
November 1, 2016: Oncology Nursing Forum
Keita Adachi, Shuhei Suzuki, Yuki Masuo, Saki Nagashima, Yukiko Hara, Tomohiro Hirano, Katsuhisa Enomoto, Kenichi Sakurai
Obesitychanges the regulatorymechanisms of the immune system, resulting in impaired immunity. In cancer immune mechanisms, the greater the degree of obesity, the lower the activity of the lymphocytes. Herein, we examined the relationship between obesity and lymphocytes in breast cancer patients undergoing chemotherapy. We recruited 10 recurrent or metastatic breast cancer patients who were administered eribulin. Using bodymass index(BMI), we classified these patients into a non-obese group(BMI<25)and an obese group(BMI>25)...
October 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Suleyman Sahin, Gokmen U Erdem, Fatih Karatas, Aydin Aytekin, Ali R Sever, Yavuz Ozisik, Kadri Altundag
BACKGROUND: Body mass index (BMI) is defined as a poor prognostic factor in patients with breast cancer (BC). However, there are controversial results regarding the various effects of BMI on BC, hence the exact pathophysiology of the relation between obesity and BC is still under debate, and remains unclear. This paper aims to investigate the association between BMI at presentation and BC subtypes defined according to the immunohistochemical classification in both premenopausal and postmenopausal patients with BC...
October 15, 2016: Breast: Official Journal of the European Society of Mastology
Su Yon Jung, Wendy E Barrington, Dorothy S Lane, Chu Chen, Rowan Chlebowski, Giselle Corbie-Smith, Lifang Hou, Zuo-Feng Zhang, Min-So Paek, Carolyn J Crandall
OBJECTIVE: Bioavailable insulin-like growth factor-I (IGF-I) interacts with obesity and exogenous estrogen (E) in a racial disparity in obesity-related cancer risk, yet their interconnected pathways are not fully characterized. We investigated whether circulating bioavailable IGF-I acted as a mediator of the racial disparity in obesity-related cancers such as breast and colorectal (CR) cancers and how obesity and E use regulate this relationship. METHODS: A total of 2,425 white and 164 African American (AA) postmenopausal women from the Women's Health Initiative Observational Study were followed from October 1, 1993 through August 29, 2014...
October 3, 2016: Menopause: the Journal of the North American Menopause Society
Farha Naz, Neha Sami, Abu Turab Naqvi, Asimul Islam, Faizan Ahmad, Md Imtaiyaz Hassan
Human microtubule affinity-regulating kinase 4 (MARK4) is considered as an encouraging drug target for the design and development of inhibitors to cure several life threatening diseases such as Alzheimer disease, cancer, obesity and type-II diabetes. Recently, we have reported four ligands namely, BX-912, BX-795, PKR-inhibitor and OTSSP167 (hydrochloride) which bind preferentially to the two different constructs of human MARK4 containing kinase domain. To ensure the role of ubiquitin associated (UBA) domain in the ligand binding, we made a newer construct of MARK4 which contain both kinase and UBA domains, named as MARK4-F3...
October 16, 2016: Journal of Biomolecular Structure & Dynamics
Nicole Niehoff, Alexandra J White, Lauren E McCullough, Susan E Steck, Jan Beyea, Irina Mordukhovich, Jing Shen, Alfred I Neugut, Kathleen Conway, Regina M Santella, Marilie D Gammon
BACKGROUND: Polycyclic aromatic hydrocarbons (PAHs) have been linked to breast cancer in many, but not all, previous studies. PAHs are lipophilic and stored in fat tissue, which we hypothesized may result in constant low-dose exposure to these carcinogens. No previous studies have evaluated whether obesity modifies associations between multiple measures of PAHs and breast cancer incidence. METHODS: This population-based study included 1,006 postmenopausal women with first primary in situ or invasive breast cancer and 990 age-frequency matched controls...
October 11, 2016: Environmental Research
Zhezhou Huang, Ying Zheng, Pingping Bao, Hui Cai, Zhen Hong, Ding Ding, James Jackson, Xiao-Ou Shu, Qi Dai
Therapy-induced cognitive impairment is prevalent and long-lasting in cancer survivors, but factors affecting post-therapy cognitive recovery are unclear. We conducted this study to evaluate the associations of age, body mass index (BMI), waist-to-hip ratio (WHR), and physical activity (PA) with post-therapy cognitive changes in a population-based breast cancer (BC) survivor cohort. We collected information on PA, weight, height, waist and hip circumferences of 1286 BC survivors aged 20-75. We assessed their cognitive functions, including immediate memory, delayed memory, verbal fluency, and attention, at 18 and 36 months after cancer diagnosis...
October 11, 2016: Oncotarget
Cheryl L Rock, Shirley W Flatt, Bilge Pakiz, Elizabeth L Quintana, Dennis D Heath, Brinda K Rana, Loki Natarajan
BACKGROUND: Obesity is a risk factor for postmenopausal breast cancer incidence and premenopausal and postmenopausal breast cancer mortality, which may be explained by several metabolic and hormonal factors (sex hormones, insulin resistance, and inflammation) that are biologically related. Differential effects of dietary composition on weight loss and these metabolic factors may occur in insulin-sensitive vs. insulin-resistant obese women. OBJECTIVE: To examine the effect of diet composition on weight loss and metabolic, hormonal and inflammatory factors in overweight/obese women stratified by insulin resistance status in a 1-year weight loss intervention...
November 2016: Metabolism: Clinical and Experimental
Mariusz Dąbrowski, Elektra Szymańska-Garbacz, Zofia Miszczyszyn, Tadeusz Dereziński, Leszek Czupryniak
BACKGROUND: The risk of several types of cancer is increased in type 2 diabetes mellitus. The earliest possible diagnosis of cancer - difficult within regular outpatient diabetes care - is of utmost importance for patients' survival. The aim of this multicenter, retrospective (years 1998-2015), case-control study was to identify risk factors associated with malignancy in subjects with diabetes treated in a typical outpatient setting. METHODS: In the databases of 3 diabetic and 1 primary care clinics 203 patients (115 women) with type 2 diabetes mellitus who developed malignancy while treated for diabetes were identified...
October 10, 2016: BMC Cancer
Ivonne M C M Rietjens, Jochem Louisse, Karsten Beekmann
Phytoestrogens are plant-derived dietary compounds with structural similarity to 17-β-estradiol (E2), the primary female sex hormone. This structural similarity to E2 enables phytoestrogens to cause (anti)estrogenic effects by binding to the estrogen receptors. The aim of the present review is to present a state-of-the-art overview of the the potential health effects of dietary phytoestrogens. Various beneficial health effects have been ascribed to phytoestrogens, such as a lowered risk on menopausal symptoms like hot flushes and osteoporosis, lowered risks on cardiovascular disease, obesity, metabolic syndrome and type 2 diabetes, brain function disorders, breast cancer, prostate cancer, bowel cancer and other cancers...
October 9, 2016: British Journal of Pharmacology
Federica Sebastiani, Laura Cortesi, Milena Sant, Valeria Lucarini, Claudia Cirilli, Elisabetta De Matteis, Isabella Marchi, Rossella Negri, Ennio Gallo, Massimo Federico
PURPOSE: We conducted a study to evaluate the relationship between body mass index (BMI) and the risk of breast cancer (BC) and outcome in a population of 14,684 women aged 55 to 69 years eligible to participate in the Mammography Screening Program (MSP) in the Province of Modena, Italy. METHODS: The study population was drawn from women who underwent mammography screening between 2004 and 2006 in the Province of Modena. Women were subdivided into obese, overweight, and normal-weight categories according to BMI and followed until July 31, 2010, to evaluate the BC incidence...
September 2016: Journal of Breast Cancer
Jae-Ho Yoo
The menarcheal age of Korean women has been rapidly decreasing for the last 50 years, and the average menarcheal age of women born in the 1990s is approaching 12.6 years. In addition, interest in early puberty has been increasing recently owing to the rapid increase in precocious puberty. Generally, out of concern for short stature and early menarche, idiopathic central precocious puberty in female adolescents is treated with gonadotropin-releasing hormone analogs. Studies to date have described the association between early menarche and psychosocial problems such as delinquency and risky sexual behavior, as well as physical health problems such as obesity, diabetes, cardiovascular diseases, and breast cancer throughout the lifespan of women...
September 2016: Korean Journal of Pediatrics
Anna Di Benedetto, Marcella Mottolese, Francesca Sperati, Cristiana Ercolani, Luigi Di Lauro, Laura Pizzuti, Patrizia Vici, Irene Terrenato, Abeer M Shaaban, Sreekumar Sundara-Rajan, Matthew P Humphries, Maddalena Barba, Valerie Speirs, Ruggero De Maria, Marcello Maugeri-Saccà
Male breast cancer (MBC) is a rare hormone-driven disease often associated with obesity. HMG-CoAR is the central enzyme of the mevalonate pathway, a molecular route deputed to produce cholesterol and steroid-based hormones. HMG-CoAR regulates the oncogenic Hippo transducers TAZ/YAP whose expression was previously associated with shorter survival in MBC. 225 MBC samples were immunostained for HMG-CoAR and 124 were considered eligible for exploring its relationship with hormone receptors (ER, PgR, AR), Hippo transducers and survival outcomes...
October 7, 2016: Scientific Reports
Jiqiao Yang, Qiuwen Tan, Qingyu Fu, Yaojie Zhou, Yuanyuan Hu, Shenli Tang, Yuting Zhou, Junhui Zhang, Juanjuan Qiu, Qing Lv
Gastrointestinal microbiome plays as a symbiont which provides protection effect against invading pathogens, aids in the immune system development, nutrient reclamation and absorption as well as molecule breakdown. And it may avert carcinogenesis through these biological activities. By now, studies have been carried out to elaborate the association between gastrointestinal microbiome and breast cancer. It has been implicated that breast cancer was substantially associated with estrogen-dependent and estrogen-independent functions of gastrointestinal microbiome...
October 5, 2016: Breast Cancer: the Journal of the Japanese Breast Cancer Society
Ryan Kolb, Liem Phan, Nicholas Borcherding, Yinghong Liu, Fang Yuan, Ann M Janowski, Qing Xie, Kathleen R Markan, Wei Li, Matthew J Potthoff, Enrique Fuentes-Mattei, Lesley G Ellies, C Michael Knudson, Mong-Hong Lee, Sai-Ching J Yeung, Suzanne L Cassel, Fayyaz S Sutterwala, Weizhou Zhang
Obesity is associated with an increased risk of developing breast cancer and is also associated with worse clinical prognosis. The mechanistic link between obesity and breast cancer progression remains unclear, and there has been no development of specific treatments to improve the outcome of obese cancer patients. Here we show that obesity-associated NLRC4 inflammasome activation/ interleukin (IL)-1 signalling promotes breast cancer progression. The tumour microenvironment in the context of obesity induces an increase in tumour-infiltrating myeloid cells with an activated NLRC4 inflammasome that in turn activates IL-1β, which drives disease progression through adipocyte-mediated vascular endothelial growth factor A (VEGFA) expression and angiogenesis...
October 6, 2016: Nature Communications
Jennifer D Brooks, Esther M John, Lene Mellemkjaer, Charles F Lynch, Julia A Knight, Kathleen E Malone, Anne S Reiner, Leslie Bernstein, Xiaolin Liang, Roy E Shore, Marilyn Stovall, Jonine L Bernstein
Studies examining the relationship between body mass index (BMI) and risk of contralateral breast cancer (CBC) have reported mixed findings. We previously showed that obese postmenopausal women with estrogen receptor (ER)-negative breast cancer have a fivefold higher risk of CBC compared with normal weight women. In the current analysis, we reexamined this relationship in the expanded Women's Environmental Cancer and Radiation Epidemiology (WECARE) Study, focusing on the impact of menopausal status and ER status of the first breast cancer...
October 3, 2016: Cancer Medicine
Shotaro Nakajima, Vivien Koh, Ley-Fang Kua, Jimmy So, Lomanto Davide, Kee Siang Lim, Sven Hans Petersen, Wei-Peng Yong, Asim Shabbir, Koji Kono
Adipose tissue (AT) macrophages (ATMs) are key players for regulation of AT homeostasis and obesity-related metabolic disorders. However, the phenotypes of human ATMs and regulatory mechanisms of their polarization have not been clearly described. In this study, we investigated human ATMs in both abdominal visceral AT and s.c. AT and proposed an 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1)-glucocorticoid receptor regulatory axis that might dictate M1/M2 polarization in ATMs. The accumulation of CD11c(+)CD163(+) ATMs in both visceral AT and s...
October 3, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
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