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https://www.readbyqxmd.com/read/28198437/increased-nutrient-availability-in-dense-breast-tissue-of-postmenopausal-women-in-vivo
#1
Annelie Abrahamsson, Anna Rzepecka, Charlotta Dabrosin
Metabolic reprogramming is a hallmark of cancer. Nutrient availability in the tissue microenvironment determines cellular events and may play a role in breast carcinogenesis. High mammographic density is an independent risk factor for breast cancer. Whether nutrient availability differs in normal breast tissues with various densities is unknown. Therefore we investigated whether breast tissues with various densities exhibited differences in nutrient availability. Healthy postmenopausal women from the regular mammographic screening program who had either predominantly fatty breast tissue (nondense), n = 18, or extremely dense breast tissue (dense), n = 20, were included...
February 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28173872/childhood-body-size-and-pubertal-timing-in-relation-to-adult-mammographic-density-phenotype
#2
Minouk J Schoemaker, Michael E Jones, Steven Allen, Jean Hoare, Alan Ashworth, Mitch Dowsett, Anthony J Swerdlow
BACKGROUND: An earlier age at onset of breast development and longer time between pubertal stages has been implicated in breast cancer risk. It is not clear whether associations of breast cancer risk with puberty or predictors of onset of puberty, such as weight and height, are mediated via mammographic density, an important risk factor for breast cancer. METHODS: We investigated whether childhood body size and pubertal timing and tempo, collected by questionnaire, are associated with percentage and absolute area mammographic density at ages 47-73 years in 1105 women recruited to a prospective study...
February 7, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28160159/aspirin-use-is-associated-with-lower-mammographic-density-in-a-large-screening-cohort
#3
REVIEW
Marie E Wood, Brian L Sprague, Andrew Oustimov, Marie B Synnstvedt, Melissa Cuke, Emily F Conant, Despina Kontos
BACKGROUND: Observational and biologic studies suggest that aspirin is a promising prevention therapy for breast cancer. However, clinical trials to date have not corroborated this evidence, potentially due to study design. We evaluated the effect of aspirin on mammographic density (MD), an established modifiable risk factor for breast cancer. METHODS: Electronic medical records from the University of Pennsylvania were evaluated for women who underwent screening mammography, saw their primary care provider, and had a confirmed list of medications during 2012-2013...
February 4, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28143431/mammographic-breast-density-and-risk-of-breast-cancer-in-women-with-atypical-hyperplasia-an-observational-cohort-study-from-the-mayo-clinic-benign-breast-disease-bbd-cohort
#4
Robert A Vierkant, Amy C Degnim, Derek C Radisky, Daniel W Visscher, Ethan P Heinzen, Ryan D Frank, Stacey J Winham, Marlene H Frost, Christopher G Scott, Matthew R Jensen, Karthik Ghosh, Armando Manduca, Kathleen R Brandt, Dana H Whaley, Lynn C Hartmann, Celine M Vachon
BACKGROUND: Atypical hyperplasia (AH) and mammographic breast density (MBD) are established risk factors for breast cancer (BC), but their joint contributions are not well understood. We examine associations of MBD and BC by histologic impression, including AH, in a subcohort of women from the Mayo Clinic Benign Breast Disease Cohort. METHODS: Women with a diagnosis of BBD and mammogram between 1985 and 2001 were eligible. Histologic impression was assessed via pathology review and coded as non-proliferative disease (NP), proliferative disease without atypia (PDWA) and AH...
January 31, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28135395/mammographic-breast-density-is-associated-with-the-development-of-contralateral-breast-cancer
#5
Akshara Raghavendra, Arup K Sinha, Huong T Le-Petross, Naveen Garg, Limin Hsu, Modesto Patangan, Therese Bartholomew Bevers, Yu Shen, Arun Banu, Debu Tripathy, Isabelle Bedrosian, Carlos H Barcenas
BACKGROUND: Women with dense mammographic breast density (BD) have a 2-fold increased risk of developing primary breast cancer (BC). The authors hypothesized that dense mammographic BD also is associated with an increased risk of developing contralateral breast cancer (CBC). METHODS: Among female patients treated at The University of Texas MD Anderson Cancer Center for sporadic, AJCC stage I to stage III BC between January 1997 and December 2012, the authors identified patients who had developed metachronous CBC (cases) and selected 1:2 matched controls who did not develop CBC using incidence density sampling, matched on attainted age, year of diagnosis, and hormone receptor status of the first BC...
January 30, 2017: Cancer
https://www.readbyqxmd.com/read/28132392/determinants-of-volumetric-breast-density-in-chilean-premenopausal-women
#6
Ana Pereira, Maria Luisa Garmendia, Ricardo Uauy, Paulina Neira, Sandra Lopez-Arana, Serghei Malkov, John Shepherd
PURPOSE: High mammographic breast density (BD) is a strong risk factor of breast cancer; however, little is known in women under 40 years of age. Recently, dual-energy X-ray Absorptiometry (DXA) has been developed as a low-dose method to measure BD in young populations. Thus, our aims were to describe BD in relation to risk factors in Chilean women under 40 years old and to explore the equivalence of DXA to mammography for the measurement of BD. METHODS: We selected 192 premenopausal Chilean female participants of the DERCAM study for whom we have anthropometric, sociodemographic, and gyneco-obstetric data...
January 28, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28129762/performance-of-a-subsidised-mammographic-screening-programme-in-malaysia-a-middle-income-asian-country
#7
Marianne Lee, Shivaani Mariapun, Nadia Rajaram, Soo-Hwang Teo, Cheng-Har Yip
BACKGROUND: The incidence of breast cancer in Asia is increasing because of urbanization and lifestyle changes. In the developing countries in Asia, women present at late stages, and mortality is high. Mammographic screening is the only evidence-based screening modality that reduces breast cancer mortality. To date, only opportunistic screening is offered in the majority of Asian countries because of the lack of justification and funding. Nevertheless, there have been few reports on the effectiveness of such programmes...
January 28, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28121523/agreement-between-breast-percentage-density-estimations-from-standard-dose-versus-synthetic-digital-mammograms-results-from-a-large-screening-cohort-using-automated-measures
#8
Emily F Conant, Brad M Keller, Lauren Pantalone, Aimilia Gastounioti, Elizabeth S McDonald, Despina Kontos
Purpose To evaluate agreement between automated estimates of breast density made from standard-dose versus synthetic digital mammograms in a large cohort of women undergoing screening. Materials and Methods This study received institutional review board approval with waiver of consent. A total of 3668 negative (Breast Imaging Reporting and Data System category 1 or 2) digital breast tomosynthesis (DBT) screening examinations consecutively performed over a 4-month period at one institution for which both standard-dose and synthetic mammograms were available for analysis were retrospectively analyzed...
January 25, 2017: Radiology
https://www.readbyqxmd.com/read/28114809/non-mass-breast-lesions-on-ultrasound-final-outcomes-and-predictors-of-malignancy
#9
Jong Won Park, Kyung Hee Ko, Eun-Kyung Kim, Cherie M Kuzmiak, Hae Kyoung Jung
Background Breast cancer can present as non-mass lesions (NMLs) on ultrasound. However, knowledge of and understanding about NMLs are scarce. Purpose To retrospectively investigate the final outcomes of sonographic breast NMLs and determine the clinical and radiologic variables associated with malignancy Material and Methods In our radiologic database of breast ultrasound examinations between 2011 and 2014, we found 119 women with 121 NMLs with available histopathologic or sonographic follow-up (over 2 years) data...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28112408/mammographic-evidence-of-microenvironment-changes-in-tumorous-breasts
#10
Zach Marin, Kendra A Batchelder, Brian C Toner, Lyne Guimond, Evgeniya Gerasimova-Chechkina, Amy R Harrow, Alain Arneodo, Andre Khalil
PURPOSE: The microenvironment of breast tumors plays a critical role in tumorigenesis. As long as the structural integrity of the microenvironment is upheld, the tumor is suppressed. If tissue structure is lost through disruptions in the normal cell cycle, the microenvironment may act as a tumor promoter. Therefore, the properties that distinguish between healthy and tumorous tissue may not be solely in the tumor characteristics but rather in surrounding non-tumor tissue. The goal of this paper is to show preliminary evidence that tissue disruption and loss of homeostasis in breast tissue microenvironment and breast bilateral asymmetry can be quantitatively and objectively assessed from mammography via a localized, wavelet-based analysis of the whole breast...
January 23, 2017: Medical Physics
https://www.readbyqxmd.com/read/28079249/fractal-analysis-of-visual-search-activity-for-mass-detection-during-mammographic-screening
#11
Folami Alamudun, Hong-Jun Yoon, Kathleen B Hudson, Garnetta Morin-Ducote, Tracy Hammond, Georgia D Tourassi
PURPOSE: The objective of this study is to assess the complexity of human visual search activity during mammographic screening using fractal analysis and to investigate its relationship with case and reader characteristics. METHODS: The study was performed for the task of mammographic screening with simultaneous viewing of four coordinated breast views as typically done in clinical practice. Eye-tracking data and diagnostic decisions collected for 100 mammographic cases (25 normal, 25 benign, 50 malignant) and 10 readers (three board certified radiologists and seven radiology residents), formed the corpus data for this study...
January 12, 2017: Medical Physics
https://www.readbyqxmd.com/read/28077158/ccl2-driven-inflammation-increases-mammary-gland-stromal-density-and-cancer-susceptibility-in-a-transgenic-mouse-model
#12
Xuan Sun, Danielle J Glynn, Leigh J Hodson, Cecilia Huo, Kara Britt, Erik W Thompson, Lucy Woolford, Andreas Evdokiou, Jeffrey W Pollard, Sarah A Robertson, Wendy V Ingman
BACKGROUND: Macrophages play diverse roles in mammary gland development and breast cancer. CC-chemokine ligand 2 (CCL2) is an inflammatory cytokine that recruits macrophages to sites of injury. Although CCL2 has been detected in human and mouse mammary epithelium, its role in regulating mammary gland development and cancer risk has not been explored. METHODS: Transgenic mice were generated wherein CCL2 is driven by the mammary epithelial cell-specific mouse mammary tumour virus 206 (MMTV) promoter...
January 11, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28068940/early-life-socioeconomic-environment-and-mammographic-breast-density
#13
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/28062399/longitudinal-study-of-mammographic-density-measures-that-predict-breast-cancer-risk
#14
Kavitha Krishnan, Laura Baglietto, Jennifer Stone, Julie A Simpson, Gianluca Severi, Christopher Evans, Robert J MacInnis, Graham G Giles, Carmel Apicella, John L Hopper
BACKGROUND: After adjusting for age and body mass index (BMI), mammographic measures - dense area (DA), percent dense area (PDA) and non-dense area (NDA) - are associated with breast cancer risk. Our aim was to use longitudinal data to estimate the extent to which these risk-predicting measures track over time. METHODS: We collected 4,320 mammograms (age range, 24-83 years) from 970 women in the Melbourne Collaborative Cohort Study and the Australian Breast Cancer Family Registry...
January 6, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28052571/classification-of-normal-screening-mammograms-is-strongly-influenced-by-perceived-mammographic-breast-density
#15
Zoey Zy Ang, Mohammad A Rawashdeh, Rob Heard, Patrick C Brennan, Warwick Lee, Sarah J Lewis
INTRODUCTION: To investigate how breast screen readers classify normal screening cases using descriptors of normal mammographic features and to assess test cases for suitability for a single reading strategy. METHODS: Fifteen breast screen readers interpreted a test set of 29 normal screening cases and classified them by firstly rating their perceived difficulty to reach a 'normal' decision, secondly identifying the cases' salient normal mammographic features and thirdly assessing the cases' suitability for a single reading strategy...
January 3, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28048364/we-fg-207a-01-introduction-to-dedicated-breast-ct-early-studies
#16
S Vedantham
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047717/we-fg-207a-02-why-we-need-breast-ct-clinical-perspective
#17
A O'Connell
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047520/we-fg-207a-05-dedicated-breast-ct-as-a-diagnostic-imaging-tool-physics-and-clinical-feasibility
#18
A Karellas
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047068/we-fg-207a-03-low-dose-cone-beam-breast-ct-physics-and-technology-development
#19
J Boone
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046408/we-fg-207a-04-performance-characteristics-of-photon-counting-breast-ct
#20
W Kalender
: Mammography-based screening has been a valuable imaging tool for the early detection of non-palpable lesions and has contributed to significant reduction in breast cancer associated mortality. However, the breast imaging community recognizes that mammography is not ideal, and in particular is inferior for women with dense breasts. Also, the 2-D projection of a 3-D organ results in tissue superposition contributing to false-positives. The sensitivity of mammography is breast-density dependent...
June 2016: Medical Physics
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