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https://www.readbyqxmd.com/read/28822996/examining-bias-in-studies-of-statin-treatment-and-survival-in-patients-with-cancer
#1
Louise Emilsson, Xabier García-Albéniz, Roger W Logan, Ellen C Caniglia, Mette Kalager, Miguel A Hernán
Importance: Patients with cancer who use statins appear to have a substantially better survival than nonusers in observational studies. However, this inverse association between statin use and mortality may be due to selection bias and immortal-time bias. Objective: To emulate a randomized trial of statin therapy initiation that is free of selection bias and immortal-time bias. Design, Setting, and Participants: We used observational data on 17 372 patients with cancer from the Surveillance, Epidemiology, and End Results (SEER)-Medicare database (2007-2009) with complete follow-up until 2011...
August 20, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28822803/discerning-clinical-responses-in-breast-cancer-based-upon-molecular-signatures
#2
REVIEW
William B Coleman, Carey K Anders
Breast cancer represents a heterogeneous collection of diseases with disparate clinical behaviors, responses to treatment, and patient outcomes, despite common histopathological features at diagnosis. Examination of molecular signatures of breast cancer (based upon complex gene expression patterns) enabled identification of several intrinsic molecular subtypes: luminal A, luminal B, HER2-enriched, and basal-like. The intrinsic subtypes are associated with measures of clinical aggressiveness, but do not perfectly predict patient outcomes...
August 16, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28822394/the-clinical-utility-and-cost-of-postoperative-mammography-completed-within-one-year-of-breast-conserving-therapy-is-it-worth-it
#3
Ahkeel Allen, Allison Cauthen, Justin Vaughan, Paul Dale
Breast conserving therapy (BCT), lumpectomy followed by radiotherapy, is an effective treatment for a majority of breast cancers. According to the National Comprehensive Cancer Network, mammographic imaging should be completed at least six months after completion of radiation. This study evaluates the clinical significance and financial cost of postoperative breast imaging within one year of BCT. Patients treated with BCT between 2014 and 2016 at an academic center were identified retrospectively. The medical records were reviewed to identify the timing and type of the first imaging study after BCT...
August 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28822325/are-there-regional-tendencies-toward-controversial-screening-practices-a-study-of-prostate-and-breast-cancer-screening-in-a-medicare-population
#4
Eric Raffin, Tracy Onega, Julie Bynum, Andrea Austin, Donald Carmichael, Kristen Bronner, Philip Goodney, Elias S Hyams
INTRODUCTION: Prostate and breast cancer screening in older patients continue to be controversial. Balancing the desire for early detection with avoidance of over-diagnosis has led to competing and contradictory guidelines for both practices. Despite similarities, it is not known how these screening practices are related at the regional level. In this study, we examined how screening PSA and mammography are related within healthcare regions, and, to better understand what may be driving these practices, whether they are associated with local intensity of care...
August 16, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28821292/the-relationship-between-obesity-and-body-compositions-with-respect-to-the-timing-of-puberty-in-chongqing-adolescents-a-cross-sectional-study
#5
Fang He, Peiyu Guan, Qin Liu, Donna Crabtree, Linli Peng, Hong Wang
BACKGROUND: It is well known that excess adiposity during childhood may influence pubertal development. However, the extent to which body compositions vary in throughout puberty in boys and girls is currently unknown. The aim of this study was to investigate whether obesity and body compositions correlate with the timing of puberty in boys and girls. METHODS: By random cluster sampling, our study analyzed data from 1472 students (690 girls, 782 boys) aged 6-17 years from two schools in the Chongqing area...
August 18, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28821205/cerebrospinal-fluid-circulating-tumor-cells-a-novel-tool-to-diagnose-leptomeningeal-metastases-from-epithelial-tumors
#6
Xuling Lin, Martin Fleisher, Marc Rosenblum, Oscar Lin, Adrienne Boire, Samuel Briggs, Yevgeniya Bensman, Brenda Hurtado, Larisa Shagabayeva, Lisa M DeAngelis, Katherine S Panageas, Antonio Omuro, Elena I Pentsova
Background: Diagnosis of leptomeningeal metastasis (LM) remains challenging due to low sensitivity of CSF cytology and infrequent unequivocal MRI findings. In a previous pilot study, we showed that rare cell capture technology (RCCT) could be used to detect circulating tumor cells (CTC) in the CSF of patients with LM from epithelial tumors. To establish the diagnostic accuracy of CSF-CTC in the diagnosis of LM, we applied this technique in a distinct, larger cohort of patients. Methods: In this institutional review board-approved prospective study, patients with epithelial tumors and clinical suspicion of LM underwent CSF-CTC evaluation and standard MRI and CSF cytology examination...
September 1, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28821197/regional-variability-in-percentage-of-breast-cancers-reported-as-positive-for-her2-in-california-implications-of-patient-demographics-on-laboratory-benchmarks
#7
Chieh-Yu Lin, Eugene E Carneal, Daphne Y Lichtensztajn, Scarlett L Gomez, Christina A Clarke, Kristin C Jensen, Allison W Kurian, Kimberly H Allison
Objectives: The expected regional variability in percent human epidermal growth factor receptor 2 (HER2)-positive breast cancers is not currently clear. Methods: Data from the 2006 to 2011 California Cancer Registry were examined by county and health service area. The influence of demographic and pathologic features was used in a multivariable logistic regression model to compare expected with observed HER2-positive percentages by region. Results: There was significant geographic variation by California counties (11...
September 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28820837/non-contrast-mr-lymphography-for-evaluation-of-lymph-node-transfer-for-secondary-upper-limb-lymphedema
#8
Lionel Arrivé, Sarah Derhy, Chrif Dlimi, Sanaa El Mouhadi, Laurence Monnier-Cholley, Corinne Becker
BACKGROUND: Our purpose was to evaluate the results of axillary lymph node transplantation (LNT) with non-contrast magnetic resonance (MR) lymphography in 15 patients with secondary upper limb lymphedema. METHODS: Fifteen female patients with lymphedema following breast cancer treatment underwent LNT. Non-contrast MR lymphography was obtained with a free-breathing 3D fast spin-echo sequence. Images analysis criteria included: (A) before surgery: a) severity of lymphedema graded as absent, mild, moderate, and severe; b) involvement of the muscular compartment; c) distal dilated lymphatic vessels; (B) after surgery: a) visualization of site of transplantation; b) visualization of transplanted lymph nodes; c) severity of lymphedema with regard to pretransplantation severity (i...
August 8, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28820618/college-women-s-responses-to-a-celebrity-health-disclosure
#9
Julia H Drizin, Vanessa L Malcarne, Melody K Schiaffino, Kristen J Wells
Celebrities can have a powerful influence on people's health-related attitudes and behaviors, often by publicly disclosing their own personal health decisions. In May 2013, Angelina Jolie, an internationally recognized actress, director, and author, wrote an op-ed for the New York Times disclosing her decision to undergo a prophylactic double mastectomy to reduce her risk of breast cancer after learning that she carried the BRCA1 gene mutation. This cross-sectional study examined whether exposure to Angelina Jolie and her mastectomy disclosure and parasocial involvement (PSI) with Angelina Jolie were related to female college students' perceived risk of breast cancer and breast cancer screening intentions...
August 18, 2017: Health Communication
https://www.readbyqxmd.com/read/28820521/feasibility-of-a-multicomponent-breast-health-education-intervention-for-vietnamese-american-immigrant-women
#10
Connie K Y Nguyen-Truong, Nisreen Pedhiwala, Vananh Nguyen, Cang Le, Tuong Vy Le, Christine Lau, Junghee Lee, Frances Lee-Lin
PURPOSE/OBJECTIVES: To determine the feasibility and acceptability of an intervention with targeted cultural and health belief messages to increase rates of mammography among Vietnamese American (VA) immigrant women. 
. DESIGN: One-group, pre-/post-test, pilot, quasiexperimental design.
. SETTING: Portland, Oregon, metropolitan area. 
. SAMPLE: 40 VA immigrant women aged 50 years or older.
. METHODS: Participants who had not had a mammogram within the past 12 months were recruited...
September 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28819419/osteopontin-a-promising-biomarker-for-cancer-therapy
#11
REVIEW
Ran Wei, Janet Pik Ching Wong, Hang Fai Kwok
Osteopontin (OPN), a multifunctional protein, has emerged as a potentially valuable biomarker for diagnosing and treating cancers. Recent research focuses on its involvement in tumor biology including the cell proliferation, survival, angiogenesis, invasion, and metastasis. Understanding the molecular mechanisms and pharmacological effects of OPN in cancer development could lead to new targets for improving cancer diagnosis and treatment. This review explains how the structurally conserved domains of OPN are associated with OPN signaling mediators and CD44, and how the conserved OPN domains determine biological functions...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28818733/effects-of-childhood-trauma-exposure-and-cortisol-levels-on-cognitive-functioning-among-breast-cancer-survivors
#12
Charles Kamen, Caroline Scheiber, Michelle Janelsins, Booil Jo, Hanyang Shen, Oxana Palesh
Cognitive functioning difficultiesin breast cancer patients receiving chemotherapy are common, but not all women experience these impairments. Exposure to childhood trauma may impair cognitive functioning following chemotherapy, and these impairments may be mediated by dysregulation of hypothalamic-pituitary-adrenal (HPA) axis function and cortisol slope. This study evaluated the association between childhood trauma exposure, cortisol, and cognition in a sample of breast cancer survivors. 56 women completed measures of trauma exposure (the Traumatic Events Survey), salivary cortisol, and self-reported cognitive functioning (the Functional Assessment of Cancer Therapy - Cognitive)...
August 14, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28818731/association-between-severities-of-striae-gravidarum-and-obstetric-anal-sphincter-injuries-oasis
#13
Ofra Halperin, Anita Noble, Shosh Balachsan, Ester Klug, Michal Liebergall-Wischnitzer
OBJECTIVES: to examine the association between the severities of Striae Gravidarum (SG) and Obstetric Anal Sphincter Injuries (OASIS) and to measure the symptoms regarding urinary incontinence, fecal/flatus incontinence, and dyspareunia, at 6 and 12 months postpartum. DESIGN: this is a cohort study. SETTING: four university teaching medical centers in Israel, two in the north and two in the center of the country. PARTICIPANTS: women with OASIS were interviewed and assessed for SG...
August 1, 2017: Midwifery
https://www.readbyqxmd.com/read/28817603/expression-of-the-mhc-class-ii-in-triple-negative-breast-cancer-is-associated-with-tumor-infiltrating-lymphocytes-and-interferon-signaling
#14
In Ah Park, Seong-Hye Hwang, In Hye Song, Sun-Hee Heo, Young-Ae Kim, Won Seon Bang, Hye Seon Park, Miseon Lee, Gyungyub Gong, Hee Jin Lee
Tumor-infiltrating lymphocytes (TILs) have been known for their strong prognostic and predictive significance in triple-negative breast cancer (TNBC). Several mechanisms for TIL influx in TNBC have been elucidated. Major histocompatibility complex class II (MHC-II) is an essential component of the adaptive immune system and is generally restricted to the surface of antigen-presenting cells. However, it has been reported that interferon-gamma signaling may induce MHC-II in almost all cell types, including those derived from cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28817195/vertical-off-centering-affects-organ-dose-in-chest-ct-evidence-from-monte-carlo-simulations-in-anthropomorphic-phantoms
#15
Natalia Saltybaeva, Hatem Alkadhi
PURPOSE: The objective of our study was to assess the effect of patient vertical off-centering on organ dose in chest CT with tube current modulation. METHODS: For this purpose, anthropomorphic phantoms representing adult male, female and overweight male were scanned on 192-slice CT scanner at eleven different vertical positions (maximal off-centering ± 5 cm). Monte Carlo simulations were performed for each of the investigated setup, using tube current values extracted from the raw data, in order to obtain 3D dose distributions...
August 17, 2017: Medical Physics
https://www.readbyqxmd.com/read/28817180/preventable-and-mitigable-adverse-events-in-cancer-care-measuring-risk-and-harm-across-the-continuum
#16
Allison Lipitz-Snyderman, David Pfister, David Classen, Coral L Atoria, Aileen Killen, Andrew S Epstein, Christopher Anderson, Elizabeth Fortier, Saul N Weingart
BACKGROUND: Patient safety is a critical concern in clinical oncology, but the ability to measure adverse events (AEs) across cancer care is limited by a narrow focus on treatment-related toxicities. The objective of this study was to assess the nature and extent of AEs among cancer patients across inpatient and outpatient settings. METHODS: This was a retrospective cohort study of 400 adult patients selected by stratified random sampling who had breast (n = 128), colorectal (n = 136), or lung cancer (n = 136) treated at a comprehensive cancer center in 2012...
August 17, 2017: Cancer
https://www.readbyqxmd.com/read/28816390/differential-expression-and-androgen-regulation-of-micrornas-and-metalloprotease-13-in-breast-cancer-cells
#17
Mamoun Ahram, Ebtihal Mustafa, Rand Zaza, Shatha Abu Hammad, Mariam Alhouhud, Randa Bawadi, Malek Zihlif
MicroRNA molecules (miRNAs) play important roles in regulating cell behavior. The expression of certain miRNAs has been shown to be regulated by the androgen receptor (AR), which seems to have a critical role in the tumorigenic process of breast cancer. The differential expression of 84 miRNAs was first examined in three breast cancer cell lines: the luminal MCF-7 and T47D cells and the molecular apocrine MDA-MB-453 cells. Analysis of basal expression of miRNAs revealed that each cell line had distinct miRNA expression where let-7a and -7b were markers of MDA-MB-453 cells, whereas miR-205 was a marker for the luminal cell lines...
August 17, 2017: Cell Biology International
https://www.readbyqxmd.com/read/28816370/does-depression-decrease-the-moderating-effect-of-self-efficacy-in-the-relationship-between-illness-perception-and-fear-of-progression-in-breast-cancer
#18
Eun-Jung Shim, Jong Won Lee, Yul Ha Min
OBJECTIVE: Fear of progression (FOP) is a prevalent concern among breast cancer patients that affect their adjustment to disease. This study examined whether self-efficacy moderates the effect of illness perception (IP) on FOP and whether the moderating effect of self-efficacy depends on the level of depressive symptoms. METHODS: A cross-sectional survey including brief illness perception questionnaire (BIPQ), FOP short form, general self-efficacy scale, and the center for epidemiologic studies depression scale were administered to 245 patients with breast cancer in Korea...
August 17, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/28816145/strain-imaging-detects-dose-dependent-segmental-cardiac-dysfunction-in-the-acute-phase-after-breast-irradiation
#19
Queenie Lo, Leia Hee, Vikneswary Batumalai, Christine Allman, Peter MacDonald, Denise Lonergan, Geoff P Delaney, Liza Thomas
PURPOSE: We examined the utility of echocardiographic 2-dimensional speckle tracking strain imaging (SI) for the evaluation of segmental myocardial dysfunction before and after radiation therapy (RT) and the relationship to dose exposure. METHODS AND MATERIALS: We prospectively recruited 40 women with left-sided breast cancer, undergoing only adjuvant RT to the left chest. Comparisons of traditional echocardiographic parameters and SI parameters at baseline and 6 weeks after RT were analyzed...
September 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/28815470/alterations-in-scai-expression-during-cell-plasticity-fibrosis-and-cancer
#20
Ákos Gasparics, Gábor Kökény, Attila Fintha, Rita Bencs, Miklós M Mózes, Emese Irma Ágoston, Anna Buday, Zoltán Ivics, Péter Hamar, Balázs Győrffy, László Rosivall, Attila Sebe
Suppressor of cancer cell invasion (SCAI) has been originally characterized as a tumor suppressor inhibiting metastasis in different human cancer cells, and it has been suggested that SCAI expression declines in tumors. The expression patterns and role of SCAI during physiological and pathophysiological processes is still poorly understood. Earlier we demonstrated that SCAI is regulating the epithelial-mesenchymal transition of proximal tubular epithelial cells, it is downregulated during renal fibrosis and it is overexpressed in Wilms' tumors...
August 16, 2017: Pathology Oncology Research: POR
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