Abstract
Purpose
We examined gut microbiome (GM) profiles in relation to mammographic breast density (BD) and body mass index (BMI) in healthy postmenopausal women.
Methods
Eligible women were postmenopausal, had a BMI ≤ 35 kg/m2, and had not recently taken oral/IV antibiotics. All women provided a fecal sample and information on breast cancer risk factors. Mammographic BD was classified with the American College of Radiology’s BI-RADS BD classification system. Bacterial DNA was isolated from fecal samples and the V1–V2 hypervariable regions of 16S rRNA were sequenced on the Illumina MiSeq platform. We examined associations of GM with indices of within-sample (alpha) diversity and the ratio of the two main phyla (Firmicutes and Bacteroidetes; F/B ratio) with BD and BMI.
Results
Among 69 women with BD data, 39 had low BD (BI-RADS I/II) and 30 had high BD (BI-RADS III/IV). BMI was inversely associated with BD (mean BMI = 23.8 and 28.0 in women with high and low BD, respectively, p = 1.07 × 10–5). Similar levels of GM diversity were found across weight groups according to Shannon (p = 0.83); Inverse Simpson (p = 0.97); and Chao1 (p = 0.31) indices. F/B ratio and microbiota diversity were suggestively greater in women with high vs. low BD (p = 0.35, 0.14, 0.15, and 0.17 for F/B ratio, Shannon, Inverse Simpson and Chao1, respectively).
Conclusion
Suggestive differences observed in women with high and low BD with respect to GM alpha diversity and prevalence of specific GM taxa need to be confirmed in larger studies.





Similar content being viewed by others
References
Grice EA, Segre JA (2012) The human microbiome: our second genome. Annu Rev Genomics Hum Genet 13:151–170
Tilg H, Kaser A (2011) Gut microbiome, obesity, and metabolic dysfunction. J Clin Invest 121:2126–2132
Kinross JM, Darzi AW, Nicholson JK (2011) Gut microbiome-host interactions in health and disease. Genome medicine 3:14
Prakash S, Rodes L, Coussa-Charley M, Tomaro-Duchesneau C (2011) Gut microbiota: next frontier in understanding human health and development of biotherapeutics. Biologics 5:71–86
Sommer F, Backhed F (2013) The gut microbiota–masters of host development and physiology. Nat Rev Microbiol 11:227–238
Schwabe RF, Jobin C (2013) The microbiome and cancer. Nat Rev Cancer 13:800–812
McCormack VA, dos Santos SI (2006) Breast density and parenchymal patterns as markers of breast cancer risk: a meta-analysis. Cancer Epidemiol Biomarkers Prev 15:1159–1169
Jackson VP, Hendrick RE, Feig SA, Kopans DB (1993) Imaging of the radiographically dense breast. Radiology 188:297–301
Kerlikowske K, Grady D, Barclay J, Sickles EA, Ernster V (1996) Effect of age, breast density, and family history on the sensitivity of first screening mammography. JAMA 276:33–38
Kolb TM, Lichy J, Newhouse JH (2002) Comparison of the performance of screening mammography, physical examination, and breast US and evaluation of factors that influence them: an analysis of 27,825 patient evaluations. Radiology 225:165–175
Pinsky RW, Helvie MA (2010) Mammographic breast density: effect on imaging and breast cancer risk. J Natl Compr Cancer Netw 8:1157–1164
Lindgren J, Dorgan J, Savage-Williams J, Coffman D, Hartman T (2013) Diet across the lifespan and the association with breast density in adulthood. Int J Breast Cancer 2013:808317
Shapira I, Sultan K, Lee A, Taioli E (2013) Evolving concepts: how diet and the intestinal microbiome act as modulators of breast malignancy. ISRN Oncol 2013:693920
Chang S-C, Ziegler RG, Dunn B et al (2006) Association of energy intake and energy balance with postmenopausal breast cancer in the prostate, lung, colorectal, and ovarian cancer screening trial. Cancer Epidemiol Biomarkers Prev 15:334–341
Ferrari P, Rinaldi S, Jenab M et al (2013) Dietary fiber intake and risk of hormonal receptor-defined breast cancer in the European Prospective Investigation into Cancer and Nutrition study. Am J Clin Nutr 97:344–353
Kushi LH, Sellers TA, Potter JD et al (1992) Dietary fat and postmenopausal breast cancer. J Natl Cancer Inst 84:1092–1099
Thomson CA (2012) Diet and breast cancer: understanding risks and benefits. Nutr Clin Pract 27:636–650
Zaineddin AK, Buck K, Vrieling A et al (2012) The association between dietary lignans, phytoestrogen-rich foods, and fiber intake and postmenopausal breast cancer risk: a German case-control study. Nutr Cancer 64:652–665
Zhang CX, Ho SC, Cheng SZ, Chen YM, Fu JH, Lin FY (2011) Effect of dietary fiber intake on breast cancer risk according to estrogen and progesterone receptor status. Eur J Clin Nutr 65:929–936
Ericson U, Borgquist S, Ivarsson MIL et al (2010) Plasma folate concentrations are positively associated with risk of estrogen receptor β negative breast cancer in a Swedish nested case control study. J Nutr 140:1661–1668
Fung TT, Hu FB, McCullough ML, Newby PK, Willett WC, Holmes MD (2006) Diet quality is associated with the risk of estrogen receptor-negative breast cancer in postmenopausal women. J Nutr 136:466–472
Larsson SC, Giovannucci E, Wolk A (2007) Folate and risk of breast cancer: a meta-analysis. J Natl Cancer Inst 99:64–76
Park Y, Brinton LA, Subar AF, Hollenbeck A, Schatzkin A (2009) Dietary fiber intake and risk of breast cancer in postmenopausal women: the National Institutes of Health-AARP Diet and Health Study. Am J Clin Nutr 90:664–671
Mishra G, dos Santos SI, McNaughton S, Stephen A, Kuh D (2011) Energy intake and dietary patterns in childhood and throughout adulthood and mammographic density: results from a British prospective cohort. Cancer Causes Control 22:227–235
Vachon CM, Kushi LH, Cerhan JR, Kuni CC, Sellers TA (2000) Association of diet and mammographic breast density in the Minnesota breast cancer family cohort. Cancer Epidemiol Biomarkers Prev 9:151–160
Hildebrandt MA, Hoffmann C, Sherrill-Mix SA et al (2009) High-fat diet determines the composition of the murine gut microbiome independently of obesity. Gastroenterology 137:1716–24.e2
Muegge BD, Kuczynski J, Knights D et al (2011) Diet drives convergence in gut microbiome functions across mammalian phylogeny and within humans. Science 332:970–974
Turnbaugh PJ, Ridaura VK, Faith JJ, Rey FE, Knight R, Gordon JI (2009) The effect of diet on the human gut microbiome: a metagenomic analysis in humanized gnotobiotic mice. Sci Transl Med 1:6ra14
Ahn J, Sinha R, Pei Z et al (2013) Human gut microbiome and risk for colorectal cancer. J Natl Cancer Inst 105:1907–1911
Soguel L, Durocher F, Tchernof A, Diorio C (2017) Adiposity, breast density, and breast cancer risk: epidemiological and biological considerations. Eur J Cancer Prev 26:511–520
Jones GS, Spencer Feigelson H, Falk RT et al (2019) Mammographic breast density and its association with urinary estrogens and the fecal microbiota in postmenopausal women. PLoS ONE 14:e0216114
Rowe RW, Tomoda M, Strebel FR, Jenkins GN, Stephens LC, Bull JM (2004) The natural progression of microvasculature in primary tumor and lymph node metastases in a breast carcinoma model: relationship between microvessel density, vascular endothelial growth factor expression, and metastatic invasion. Cancer Biol Ther 3:408–414
Brenner PF, Goebelsmann U, Stanczyk FZ, Mishell DR Jr (1980) Serum levels of ethinylestradiol following its ingestion alone or in oral contraceptive formulations. Contraception 22:85–95
Razzaghi H, Troester MA, Gierach GL, Olshan AF, Yankaskas BC, Millikan RC (2012) Mammographic density and breast cancer risk in White and African American Women. Breast Cancer Res Treat 135:571–580
Kerlikowske K, Zhu W, Tosteson AN et al (2015) Identifying women with dense breasts at high risk for interval cancer: a cohort study. Ann Intern Med 162:673–681
Kerlikowske K, Ma L, Scott CG et al (2017) Combining quantitative and qualitative breast density measures to assess breast cancer risk. Breast Cancer Res 19:97
Ziv E, Shepherd J, Kerlikowske K, Smith-Bindman R (2003) Mammographic breast density and family history of breast cancer. J Natl Cancer Inst 95:556–558
Ziv E, Tice J, Smith-Bindman R, Shepherd J, Cummings S, Kerlikowske K (2004) Mammographic density and estrogen receptor status of breast cancer. Cancer Epidemiol Biomarkers Prev 13:2090–2095
White AJ, Weinberg CR, O’Meara ES, Sandler DP, Sprague BL (2019) Airborne metals and polycyclic aromatic hydrocarbons in relation to mammographic breast density. Breast Cancer Res 21:24
Rutter CM, Mandelson MT, Laya MB, Taplin S (2001) Changes in breast density associated with initiation, discontinuation, and continuing use of hormone replacement therapy. JAMA 285:171–176
Aiello EJ, Buist DSM, White E, Porter PL (2005) Association between mammographic breast density and breast cancer tumor characteristics. Cancer Epidemiol Biomarkers Prev 14:662–668
Harvey JA, Bovbjerg VE, Smolkin ME, Williams MB, Petroni GR (2005) Evaluating hormone therapy-associated increases in breast density: comparison between reported and simultaneous assignment of BI-RADS categories, visual assessment, and quantitative analysis1. Acad Radiol 12:853–862
van der Waal D, den Heeten GJ, Pijnappel RM et al (2015) Comparing visually assessed BI-RADS breast density and automated volumetric breast density software: a cross-sectional study in a breast cancer screening setting. PLoS ONE 10:e0136667
Spayne MC, Gard CC, Skelly J, Miglioretti DL, Vacek PM, Geller BM (2012) Reproducibility of BI-RADS breast density measures among community radiologists: a prospective cohort study. Breast J 18:326–333
Ciatto S, Houssami N, Apruzzese A et al (2005) Categorizing breast mammographic density: intra- and inter-observer reproducibility of BI-RADS density categories. Breast 14:269–275
Kerlikowske K, Grady D, Barclay J et al (1998) Variability and accuracy in mammographic interpretation using the American College of Radiology Breast Imaging Reporting and Data System. J Natl Cancer Inst 90:1801–1809
Gweon HM, Youk JH, Kim J-A, Son EJ (2013) Radiologist assessment of breast density by BI-RADS categories versus fully automated volumetric assessment. Am J Roentgenol 201:692–697
Winkel RR, von Euler-Chelpin M, Nielsen M et al (2015) Inter-observer agreement according to three methods of evaluating mammographic density and parenchymal pattern in a case control study: impact on relative risk of breast cancer. BMC Cancer 15:274
Jamal N, Ng KH, Looi LM et al (2006) Quantitative assessment of breast density from digitized mammograms into Tabar’s patterns. Phys Med Biol 51:5843–5857
Jeffreys M, Warren R, Smith GD, Gunnell D (2003) Breast density: agreement of measures from film and digital image. Br J Radiol 76:561–563
Prevrhal S, Shepherd JA, Smith-Bindman R, Cummings SR, Kerlikowske K (2002) Accuracy of mammographic breast density analysis: results of formal operator training. Cancer Epidemiol Biomarkers Prev 11:1389–1393
Youk JH, Kim SJ, Son EJ, Gweon HM, Kim J-A (2017) Comparison of visual assessment of breast density in BI-RADS 4th and 5th editions with automated volumetric measurement. Am J Roentgenol 209:703–708
Kerlikowske K, Scott CG, Mahmoudzadeh AP et al (2018) Automated and clinical breast imaging reporting and data system density measures predict risk for screen-detected and interval cancers: a case-control study. Ann Intern Med 168:757–765
Klann E, Williamson JM, Tagliamonte MS et al (2020) Microbiota composition in bilateral healthy breast tissue and breast tumors. Cancer Causes Control 31:1027–1038
Miller DN, Bryant JE, Madsen EL, Ghiorse WC (1999) Evaluation and optimization of DNA extraction and purification procedures for soil and sediment samples. Appl Environ Microbiol 65:4715–4724
Zoetendal EG, Akkermans AD, De Vos WM (1998) Temperature gradient gel electrophoresis analysis of 16S rRNA from human fecal samples reveals stable and host-specific communities of active bacteria. Appl Environ Microbiol 64:3854–3859
Hamady M, Walker JJ, Harris JK, Gold NJ, Knight R (2008) Error-correcting barcoded primers for pyrosequencing hundreds of samples in multiplex. Nat Methods 5:235–237
Sun Y, Cai Y, Huse SM et al (2012) A large-scale benchmark study of existing algorithms for taxonomy-independent microbial community analysis. Brief Bioinform 13:107–121
Sun Y, Cai Y, Mai V et al (2010) Advanced computational algorithms for microbial community analysis using massive 16S rRNA sequence data. Nucleic Acids Res 38:e205
Cai Y, Sun Y (2011) ESPRIT-Tree: hierarchical clustering analysis of millions of 16S rRNA pyrosequences in quasilinear computational time. Nucleic Acids Res 39:e95
Caporaso JG, Kuczynski J, Stombaugh J et al (2010) QIIME allows analysis of high-throughput community sequencing data. Nat Methods 7:335–336
Pylro VS, Roesch LF, Ortega JM et al (2014) Brazilian Microbiome Project: revealing the unexplored microbial diversity–challenges and prospects. Microb Ecol 67:237–241
Wang Q, Garrity GM, Tiedje JM, Cole JR (2007) Naive Bayesian classifier for rapid assignment of rRNA sequences into the new bacterial taxonomy. Appl Environ Microbiol 73:5261–5267
Willett W, Stampfer MJ, Bain C et al (1983) Cigarette smoking, relative weight, and menopause. Am J Epidemiol 117:651–658
Stampfer MJ, Willett WC, Colditz GA, Rosner B, Speizer FE, Hennekens CH (1985) A prospective study of postmenopausal estrogen therapy and coronary heart disease. N Engl J Med 313:1044–1049
Kim BR, Shin J, Guevarra R et al (2017) Deciphering diversity indices for a better understanding of microbial communities. J Microbiol Biotechnol 27:2089–2093
Reese AT, Dunn RR (2018) Drivers of microbiome biodiversity: a review of general rules, feces, and ignorance. MBio 9:e01294–e01318
Kerlikowske K, Cook AJ, Buist DS et al (2010) Breast cancer risk by breast density, menopause, and postmenopausal hormone therapy use. J Clin Oncol 28:3830–3837
Vacek PM, Geller BM (2004) A prospective study of breast cancer risk using routine mammographic breast density measurements. Cancer Epidemiol Biomarkers Prev 13:715–722
Kerlikowske K, Ichikawa L, Miglioretti DL et al (2007) Longitudinal measurement of clinical mammographic breast density to improve estimation of breast cancer risk. J Natl Cancer Inst 99:386–395
Gierach GL, Ichikawa L, Kerlikowske K et al (2012) Relationship between mammographic density and breast cancer death in the breast cancer surveillance consortium. JNCI J Natl Cancer Inst 104:1218–1227
Sprague BL, Gangnon RE, Burt V et al (2014) Prevalence of mammographically dense breasts in the United States. J Natl Cancer Inst 106:dju255
Lowry SJ, Sprague BL, Aiello Bowles EJ et al (2012) Mammographic breast density and serum phytoestrogen levels. Nutr Cancer 64:783–789
Sprague BL, Trentham-Dietz A, Hedman CJ et al (2013) Circulating serum xenoestrogens and mammographic breast density. Breast Cancer Res 15:R45
Belkaid Y, Hand TW (2014) Role of the microbiota in immunity and inflammation. Cell 157:121–141
Scher JU, Littman DR, Abramson SB (2016) Microbiome in Inflammatory Arthritis and Human Rheumatic Diseases. Arthritis Rheumatol 68:35–45
Kamada N, Seo SU, Chen GY, Nunez G (2013) Role of the gut microbiota in immunity and inflammatory disease. Nat Rev Immunol 13:321–335
Cenit MC, Matzaraki V, Tigchelaar EF, Zhernakova A (2014) Rapidly expanding knowledge on the role of the gut microbiome in health and disease. Biochem Biophys Acta 1842:1981–1992
Terry MB, Buist DS, Trentham-Dietz A, James-Todd TM, Liao Y (2008) Nonsteroidal anti-inflammatory drugs and change in mammographic density: a cohort study using pharmacy records on over 29,000 postmenopausal women. Cancer Epidemiol Biomarkers Prev 17:1088–1095
Maskarinec G, Urano Y, Gill J, Kolonel LN (2008) Nonsteroidal anti-inflammatory drugs (NSAIDs) and mammographic density. Breast Cancer Res Treat 112:133–139
Reeves KW, Weissfeld JL, Modugno F, Diergaarde B (2011) Circulating levels of inflammatory markers and mammographic density among postmenopausal women. Breast Cancer Res Treat 127:555–563
Turnbaugh PJ, Ley RE, Mahowald MA, Magrini V, Mardis ER, Gordon JI (2006) An obesity-associated gut microbiome with increased capacity for energy harvest. Nature 444:1027–1031
Turnbaugh PJ, Backhed F, Fulton L, Gordon JI (2008) Diet-induced obesity is linked to marked but reversible alterations in the mouse distal gut microbiome. Cell Host Microbe 3:213–223
Turnbaugh PJ, Hamady M, Yatsunenko T et al (2009) A core gut microbiome in obese and lean twins. Nature 457:480–484
Flores R, Shi J, Gail MH, Gajer P, Ravel J, Goedert JJ (2012) Assessment of the human faecal microbiota: II. Reproducibility and associations of 16S rRNA pyrosequences. Eur J Clin Invest 42:855–863
Keum N, Greenwood DC, Lee DH et al (2015) Adult weight gain and adiposity-related cancers: a dose-response meta-analysis of prospective observational studies. J Natl Cancer Inst 107:djv088
Cani PD (2013) Gut microbiota and obesity: lessons from the microbiome. Brief Funct Genomics 12:381–387
Dugas LR, Fuller M, Gilbert J, Layden BT (2016) The obese gut microbiome across the epidemiologic transition. Emerg Themes Epidemiol 13:2
Hankinson SE, Willett WC, Manson JE et al (1995) Alcohol, height, and adiposity in relation to estrogen and prolactin levels in postmenopausal women. J Natl Cancer Inst 87:1297–1302
Dorgan JF, Baer DJ, Albert PS et al (2001) Serum hormones and the alcohol-breast cancer association in postmenopausal women. J Natl Cancer Inst 93:710–715
Sorensen HT, Skriver MV, Friis S, McLaughlin JK, Blot WJ, Baron JA (2005) Use of antibiotics and risk of breast cancer: a population-based case-control study. Br J Cancer 92:594–596
Garcia Rodriguez LA, Gonzalez-Perez A (2005) Use of antibiotics and risk of breast cancer. Am J Epidemiol 161:616–619
Castaner O, Goday A, Park YM et al (2018) The gut microbiome profile in obesity: a systematic review. Int J Endocrinol 2018:4095789
Tseng CH, Wu CY (2019) The gut microbiome in obesity. J Formosan Med Assoc 118(Suppl 1):S3–S9
Maruvada P, Leone V, Kaplan LM, Chang EB (2017) The human microbiome and obesity: moving beyond associations. Cell Host Microbe 22:589–599
Thaiss CA (2018) Microbiome dynamics in obesity. Science 362:903–904
Schieber AM, Lee YM, Chang MW et al (2015) Disease tolerance mediated by microbiome E. coli involves inflammasome and IGF-1 signaling. Science 350:558–563
Rice MS, Tamimi RM, Connolly JL et al (2012) Insulin-like growth factor-1, insulin-like growth factor binding protein-3 and lobule type in the Nurses’ Health Study II. Breast Cancer Res 14:R44
Christopoulos PF, Msaouel P, Koutsilieris M (2015) The role of the insulin-like growth factor-1 system in breast cancer. Mol Cancer 14:43
Rinaldi S, Peeters PH, Berrino F et al (2006) IGF-I, IGFBP-3 and breast cancer risk in women: The European Prospective Investigation into Cancer and Nutrition (EPIC). Endocr Relat Cancer 13:593–605
Endogenous H, Breast Cancer Collaborative G, Key TJ, Appleby PN, Reeves GK, Roddam AW (2010) Insulin-like growth factor 1 (IGF1), IGF binding protein 3 (IGFBP3), and breast cancer risk: pooled individual data analysis of 17 prospective studies. Lancet Oncol 11:530–542
Lagiou P, Samoli E, Lagiou A et al (2013) A comparison of hormonal profiles between breast cancer and benign breast disease: a case-control study. Ann Oncol 24:2527–2533
Su X, Colditz GA, Willett WC et al (2010) Genetic variation and circulating levels of IGF-I and IGFBP-3 in relation to risk of proliferative benign breast disease. Int J Cancer 126:180–190
Rinninella E, Raoul P, Cintoni M et al (2019) What is the healthy gut microbiota composition? A changing ecosystem across age, environment, diet, and diseases. Microorganisms 7:14
Riva A, Borgo F, Lassandro C et al (2017) Pediatric obesity is associated with an altered gut microbiota and discordant shifts in Firmicutes populations. Environ Microbiol 19:95–105
Chambers ES, Preston T, Frost G, Morrison DJ (2018) Role of gut microbiota-generated short-chain fatty acids in metabolic and cardiovascular health. Curr Nutr Rep 7:198–206
Xiao L, Sonne SB, Feng Q et al (2017) High-fat feeding rather than obesity drives taxonomical and functional changes in the gut microbiota in mice. Microbiome 5:43
Vital M, Karch A, Pieper DH (2017) Colonic butyrate-producing communities in humans: an overview using omics data. mSystems 2:e00130-e1117
Poeker SA, Geirnaert A, Berchtold L et al (2018) Understanding the prebiotic potential of different dietary fibers using an in vitro continuous adult fermentation model (PolyFermS). Sci Rep 8:4318
Rivière A, Selak M, Lantin D, Leroy F, De Vuyst L (2016) Bifidobacteria and butyrate-producing colon bacteria: importance and strategies for their stimulation in the human gut. Front Microbiol 7:979
Canani RB, Costanzo MD, Leone L, Pedata M, Meli R, Calignano A (2011) Potential beneficial effects of butyrate in intestinal and extraintestinal diseases. World J Gastroenterol 17:1519–1528
Ghosh K, Brandt KR, Sellers TA et al (2008) Association of mammographic density with the pathology of subsequent breast cancer among postmenopausal women. Cancer Epidemiol Biomarkers Prev 17:872–879
Clavel T, Lepage P, Charrier C (2014) The family Coriobacteriaceae. In: Rosenberg E, DeLong EF, Lory S, Stackebrandt E, Thompson F (eds) The prokaryotes: actinobacteria. Springer, Berlin, pp 201–238
Waters JL, Ley RE (2019) The human gut bacteria Christensenellaceae are widespread, heritable, and associated with health. BMC Biol 17:83
Krishnan K, Baglietto L, Stone J et al (2017) Longitudinal study of mammographic density measures that predict breast cancer risk. Cancer Epidemiol Biomarkers Prev 26:651–660
Brandt KR, Scott CG, Miglioretti DL et al (2019) Automated volumetric breast density measures: differential change between breasts in women with and without breast cancer. Breast Cancer Res 21:118
Antonopoulos DA, Huse SM, Morrison HG, Schmidt TM, Sogin ML, Young VB (2009) Reproducible community dynamics of the gastrointestinal microbiota following antibiotic perturbation. Infect Immun 77:2367–2375
Caporaso JG, Lauber CL, Costello EK et al (2011) Moving pictures of the human microbiome. Genome Biol 12:R50
Human Microbiome Project C (2012) Structure, function and diversity of the healthy human microbiome. Nature 486:207–214
Faith JJ, Guruge JL, Charbonneau M et al (2013) The long-term stability of the human gut microbiota. Science 341:1237439
Franzosa EA, Morgan XC, Segata N et al (2014) Relating the metatranscriptome and metagenome of the human gut. Proc Natl Acad Sci USA 111:E2329–E2338
Kerlikowske K, Vachon CM (2016) Breast density: more than meets the eye. J Natl Cancer Inst 108:djw128
Yoong SL, Carey ML, D’Este C, Sanson-Fisher RW (2013) Agreement between self-reported and measured weight and height collected in general practice patients: a prospective study. BMC Med Res Methodol 13:38
Dahl AK, Hassing LB, Fransson EI, Pedersen NL (2010) Agreement between self-reported and measured height, weight and body mass index in old age: a longitudinal study with 20 years of follow-up. Age Ageing 39:445–451
Lin CJ, DeRoo LA, Jacobs SR, Sandler DP (2012) Accuracy and reliability of self-reported weight and height in the Sister Study. Public Health Nutr 15:989–999
Spencer E, Appleby P, Davey G, Key T (2002) Validity of self-reported height and weight in 4808 EPIC-Oxford participants. Public Health Nutr 5:561–565
Hodge JM, Shah R, McCullough ML, Gapstur SM, Patel AV (2020) Validation of self-reported height and weight in a large, nationwide cohort of U.S. adults. PLoS ONE 15:e0231229
Acknowledgements
This work was supported by the Florida Academic Cancer Center Alliance and UF Health Cancer Center Bridge Funding. We would like to thank participants of this study for providing the data and samples.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
The authors declare that they have no conflict of interest.
Research involving human participants and/or animals
This study was approved by the Moffitt Cancer Center and UF Institutional Review Boards (UF: IRB 201500572 and IRB 201600709; Moffitt Cancer Center SRC 18419). The study was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments.
Informed consent
All participants provided written informed consent.
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Supplementary Information
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Yaghjyan, L., Mai, V., Wang, X. et al. Gut microbiome, body weight, and mammographic breast density in healthy postmenopausal women. Cancer Causes Control 32, 681–692 (2021). https://doi.org/10.1007/s10552-021-01420-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10552-021-01420-6