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tamoxifen and weight gain

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https://www.readbyqxmd.com/read/28862123/results-of-1-year-diet-and-exercise-interventions-for-er-pr%C3%A2-her2-breast-cancer-patients-correlated-with-treatment-type
#1
Diana V Artene, Cristian I Bordea, Alexandru Blidaru
PURPOSE: Many breast cancer patients gain weight during chemotherapy and antiestrogenic treatment increasing recurrence, oncologic specific and all-cause mortality risks. Patients and Methods: 165 ER+/PR±/HER2- breast cancer patients under antiestrogenic treatment were randomly assigned to follow an at-home diet based on food naturally high in proteins, calcium, probiotics and prebiotics (D), or this diet and 4' isometric exercises (D+Ex) for 1 year. We measured weight (W), body (BF) and visceral fat (VF) using a multi-frequency bioelectrical impedance scale on the 6th and 12th month and we correlated results with chemotherapy, surgery and antiestrogenic medication type...
July 2017: Chirurgia
https://www.readbyqxmd.com/read/28750616/profiles-of-lipids-blood-pressure-and-weight-changes-among-premenopausal-chinese-breast-cancer-patients-after-adjuvant-chemotherapy
#2
Winnie Yeo, Frankie K F Mo, Elizabeth Pang, Joyce J S Suen, Jane Koh, Herbert H F Loong, Christopher C H Yip, Rita Y W Ng, Claudia H W Yip, Nelson L S Tang, Giok S Liem
BACKGROUND: Adjuvant chemotherapy improves outcome of patients with early breast cancer. However, chemotherapy may be associated with long term toxicities. In this retrospective cohort study, the objectives were to determine body weight, body mass index (BMI), blood pressure and fasting lipids levels of young premenopausal Chinese breast cancer patients after adjuvant chemotherapy. Potential factors associated with these parameters were identified. METHODS: Eligibility criteria include premenopausal Chinese patients who were diagnosed to have stage I-III breast cancer within 3-10 years, age < 45 and having received adjuvant chemotherapy at the time of breast cancer diagnosis...
July 27, 2017: BMC Women's Health
https://www.readbyqxmd.com/read/28600811/inducible-knockdown-of-pregnancy-associated-plasma-protein-a-gene-expression-in-adult-female-mice-extends-life-span
#3
Laurie K Bale, Sally A West, Cheryl A Conover
Pregnancy-associated plasma protein-A (PAPP-A) knockout (KO) mice, generated through homologous recombination in embryonic stem cells, have a significantly increased lifespan compared to wild-type littermates. However, it is unknown whether this longevity advantage would pertain to PAPP-A gene deletion in adult animals. In the present study, we used tamoxifen (Tam)-inducible Cre recombinase-mediated excision of the floxed PAPP-A (fPAPP-A) gene in mice at 5 months of age. fPAPP-A mice, which were either positive (pos) or negative (neg) for Tam-Cre, received Tam treatment with quarterly boosters...
August 2017: Aging Cell
https://www.readbyqxmd.com/read/28377875/astrocyte-ikk%C3%AE-nf-%C3%AE%C2%BAb-signaling-is-required-for-diet-induced-obesity-and-hypothalamic-inflammation
#4
J D Douglass, M D Dorfman, R Fasnacht, L D Shaffer, J P Thaler
OBJECTIVE: Obesity and high fat diet (HFD) consumption in rodents is associated with hypothalamic inflammation and reactive gliosis. While neuronal inflammation promotes HFD-induced metabolic dysfunction, the role of astrocyte activation in susceptibility to hypothalamic inflammation and diet-induced obesity (DIO) remains uncertain. METHODS: Metabolic phenotyping, immunohistochemical analyses, and biochemical analyses were performed on HFD-fed mice with a tamoxifen-inducible astrocyte-specific knockout of IKKβ (Gfap(CreER)Ikbkb(fl/fl), IKKβ-AKO), an essential cofactor of NF-κB-mediated inflammation...
April 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28155053/weight-changes-in-postmenopausal-breast-cancer-survivors-over-2%C3%A2-years-of-endocrine-therapy-a-retrospective-chart-review
#5
Kirsten A Nyrop, Allison M Deal, Jordan T Lee, Hyman B Muss, Seul Ki Choi, Samara Dixon, Amy Wheless, Lisa A Carey, Shlomit S Shachar
PURPOSE: Obesity and weight gain after breast cancer (BC) diagnosis can affect cancer outcomes. This study explores the question of weight change during the first 2 years of endocrine treatment (ET) to identify the independent effects of BC diagnosis and treatment on post-diagnosis weight trajectories in early-stage postmenopausal BC survivors. METHODS: The study design is a retrospective chart review. Chi square tests and ANOVA were used to compare patients who gained >2 kg, lost >2 kg, or had stable weight...
April 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/27738376/paroxetine-the-antidepressant-from-hell-probably-not-but-caution-required
#6
REVIEW
Robert M Nevels, Samuel T Gontkovsky, Bryman E Williams
Paroxetine, also known by the trade names Aropax, Paxil, Pexeva, Seroxat, Sereupin and Brisdelle, was first marketed in the U.S. in 1992. Effective for major depression and various anxiety disorders, it quickly gained a sizable share of the antidepressant prescription market. By the late 1990s, paroxetine frequently was being associated with serious drug interactions and medication side effects. Most significantly, in a major Canadian epidemiological study examining the relationship between antidepressants and diseases, paroxetine was associated with a 620 percent increase in the rate of breast cancer in women who had taken it over a four-year period...
March 1, 2016: Psychopharmacology Bulletin
https://www.readbyqxmd.com/read/27342454/weight-gain-during-adjuvant-endocrine-treatment-for-early-stage-breast-cancer-what-is-the-evidence
#7
REVIEW
K A Nyrop, G R Williams, H B Muss, S S Shachar
Most breast cancer (BC) tumors are early stage and hormone receptor positive, where treatment generally includes adjuvant endocrine treatment (ET). Oncology providers and women about to start ET want to know about side effects, including potential weight gain. The aim of this study was a literature review to identify the independent effect of ET on post-diagnosis weight gain. Weight gain is of concern with regard to potential associations with BC recurrence, mortality, and quality of life in survivorship. We conducted a targeted review of the literature...
July 2016: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/26238437/clinical-utility-of-genetic-signatures-in-selecting-adjuvant-treatment-risk-stratification-for-early-vs-late-recurrences
#8
Daniel F Hayes
Adjuvant endocrine therapy (ET) reduces the odds of distant recurrence and mortality by nearly one-half in women with hormone receptor (HR) positive early stage breast cancer. While the risk of recurrence is lower for HR positive than negative patients during the first 5-7 years, HR positive patients suffer ongoing recurrences between 0.5 and 2% year over subsequent years. Extended adjuvant ET further reduces recurrence during this late phase of follow-up. ET is associated with post-menopausal side effects (hot flashes, sexual dysfunction, mood changes, and weight gain), and occasional major toxicities (thrombosis and endometrial cancer with tamoxifen; bone mineral loss and possibly heart disease with AIs) persist throughout therapy...
November 2015: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/26198359/reversal-of-diet-induced-obesity-and-insulin-resistance-by-inducible-genetic-ablation-of-grk2
#9
Rocio Vila-Bedmar, Marta Cruces-Sande, Elisa Lucas, Hanneke L D M Willemen, Cobi J Heijnen, Annemieke Kavelaars, Federico Mayor, Cristina Murga
Insulin resistance is a common feature of obesity and predisposes individuals to various prevalent pathological conditions. G protein (heterotrimeric guanine nucleotide-binding protein)-coupled receptor kinase 2 (GRK2) integrates several signal transduction pathways and is emerging as a physiologically relevant inhibitor of insulin signaling. GRK2 abundance is increased in humans with metabolic syndrome and in different murine models of insulin resistance. To support GRK2 as a potential drug target in type 2 diabetes and obesity, we investigated whether lowering GRK2 abundance reversed an ongoing systemic insulin-resistant phenotype, using a mouse model of tamoxifen-induced GRK2 ablation after high-fat diet-dependent obesity and insulin resistance...
July 21, 2015: Science Signaling
https://www.readbyqxmd.com/read/25725922/-environmental-and-genetic-risk-factors-for-endometrial-carcinoma
#10
REVIEW
Claire Sénéchal, Edouard Cottereau, Antoine de Pauw, Camille Elan, Isabelle Dagousset, Virginie Fourchotte, Marion Gauthier-Villars, Marick Lae, Dominique Stoppa-Lyonnet, Bruno Buecher
In France, endometrial cancer is at the first rank of gynecological cancers for cancer incidence, before ovarian and cervical cancers. In fact, the number of incident cases has been estimated to 7275 for the year 2012; the number of death due to endometrial cancer to 2025. This cancer is hormone-dependent and endogenous (reproductive factors) or exogenous (oral combined contraceptives, hormone replacement therapy) causes of exposition to estrogens are the major environmental risk factors for both types of endometrial cancers: type I or well-differentiated endometrioid adenocarcinomas; and type II including all other histological types: papillary serous adenocarcinomas, clear cell adenocarcinomas and carcinosarcomas, also known as malignant mixed Mullerian tumor, MMMT...
March 2015: Bulletin du Cancer
https://www.readbyqxmd.com/read/25663541/factors-influencing-response-to-lymphedema-treatment-in-patients-with-breast-cancer-related-lymphedema
#11
Sibel Eyigör, Ece Cinar, Ismail Caramat, Burcu Koc Unlu
PURPOSE: In clinical practice, noticeable differences are seen in patient response to the treatment of breast cancer-related lymphedema. Although some factors influencing response to treatment are mentioned in the literature, there is no sufficient evidence and results are confusing. For this reason, our objective in this study is to identify predictive and response-related factors for response to treatment of breast cancer-related lymphedema. METHODS: We analyzed data retrospectively from the files of patients with breast cancer-related lymphedema between 2006 and 2012...
September 2015: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/25629159/a-neuron-specific-deletion-of-the-microrna-processing-enzyme-dicer-induces-severe-but-transient-obesity-in-mice
#12
Géraldine M Mang, Sylvain Pradervand, Ngoc-Hien Du, Alaaddin Bulak Arpat, Frédéric Preitner, Leonore Wigger, David Gatfield, Paul Franken
MicroRNAs (miRNAs) are small, non-coding RNA molecules that regulate gene expression post-transcriptionally. MiRNAs are implicated in various biological processes associated with obesity, including adipocyte differentiation and lipid metabolism. We used a neuronal-specific inhibition of miRNA maturation in adult mice to study the consequences of miRNA loss on obesity development. Camk2a-CreERT2 (Cre+) and floxed Dicer (Dicerlox/lox) mice were crossed to generate tamoxifen-inducible conditional Dicer knockouts (cKO)...
2015: PloS One
https://www.readbyqxmd.com/read/25525854/bmi-variation-increases-recurrence-risk-in-women-with-early-stage-breast-cancer
#13
Palma Fedele, Laura Orlando, Paola Schiavone, Annamaria Quaranta, Assunta Maria Lapolla, Maria De Pasquale, Antonino Ardizzone, Emilio Bria, Isabella Sperduti, Nicola Calvani, Antonella Marino, Chiara Caliolo, Enrica Mazzoni, Saverio Cinieri
AIMS: The prognostic role of BMI variation during and/or after treatments for early-stage breast cancer is still unknown. PATIENTS & METHODS: The χ(2) test was conducted to explore the correlation between breast cancer recurrence and BMI changes in 520 early-stage breast cancer patients. Cox proportional hazard models were used to analyze the association of BMI changes, baseline BMI, known prognostic factors and recurrences. RESULTS: BMI gain was significant determinant of recurrences (p = 0...
December 2014: Future Oncology
https://www.readbyqxmd.com/read/25205655/novel-selective-estrogen-mimics-for-the-treatment-of-tamoxifen-resistant-breast-cancer
#14
Mary Ellen Molloy, Bethany E Perez White, Teshome Gherezghiher, Bradley T Michalsen, Rui Xiong, Hitisha Patel, Huiping Zhao, Philipp Y Maximov, V Craig Jordan, Gregory R J Thatcher, Debra A Tonetti
Endocrine-resistant breast cancer is a major clinical obstacle. The use of 17β-estradiol (E2) has reemerged as a potential treatment option following exhaustive use of tamoxifen or aromatase inhibitors, although side effects have hindered its clinical usage. Protein kinase C alpha (PKCα) expression was shown to be a predictor of disease outcome for patients receiving endocrine therapy and may predict a positive response to an estrogenic treatment. Here, we have investigated the use of novel benzothiophene selective estrogen mimics (SEM) as an alternative to E2 for the treatment of tamoxifen-resistant breast cancer...
November 2014: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/25097095/adverse-effects-of-androgen-deprivation-therapy-and-strategies-to-mitigate-them
#15
REVIEW
Paul L Nguyen, Shabbir M H Alibhai, Shehzad Basaria, Anthony V D'Amico, Philip W Kantoff, Nancy L Keating, David F Penson, Derek J Rosario, Bertrand Tombal, Matthew R Smith
CONTEXT: Androgen-deprivation therapy (ADT) is a key component of treatment for aggressive and advanced prostate cancer, but it has also been associated with adverse effects on bone, metabolic, cardiovascular, sexual, and cognitive health as well as body composition. OBJECTIVE: To review the current literature on the adverse effects of ADT and strategies for ameliorating harm from ADT. EVIDENCE ACQUISITION: The Medline database (through PubMed) was searched from inception to August 1, 2013, for studies documenting the side effects of ADT and for randomized and prospective trials of interventions to mitigate those side effects...
May 2015: European Urology
https://www.readbyqxmd.com/read/24934978/interleukin-6-deletion-in-mice-driven-by-ap2-cre-ert2-prevents-against-high-fat-diet-induced-gain-weight-and-adiposity-in-female-mice
#16
B Navia, B Ferrer, M Giralt, G Comes, J Carrasco, A Molinero, A Quintana, J Leclerc, B Viollet, R M Señarís, J Hidalgo
AIM: Interleukin-6 (IL-6) is a major cytokine controlling body weight and metabolism, but because many types of cells can synthesize and respond to IL-6 considerable uncertainty still exists about the mechanisms underlying IL-6 effects. Therefore, the aim of this study was to analyse the effects of tissue-specific deletion of IL-6 using a fatty acid binding protein (aP2) promoter-Cre inducible system (aP2-Cre-ERT2). METHODS: Tissue-specific IL-6 KO mice (aP2-IL-6 KO mice) were produced upon tamoxifen administration and were fed a high-fat diet (HFD, 58...
August 2014: Acta Physiologica
https://www.readbyqxmd.com/read/24893869/effect-of-oral-tamoxifen-on-the-healing-of-corrosive-oesophageal-burns-in-an-experimental-rat-model
#17
Onur Elmas, Muazzez Cevik, Tuncer Demir, Muzaffer A Ketani
OBJECTIVES: Corrosive oesophagitis is a common health problem in children. Scar tissue can develop during the recovery period, and as a result, serious narrowing of the oesophagus can develop, in turn causing morbidity and mortality. In previous studies, it was argued that tamoxifen (TAM) may have antifibrotic effects beyond its oestrogen antagonist or agonist properties. We aimed to examine the possible effects of TAM on fibrosis and stricture formation, which are complications of corrosive oesophagitis...
September 2014: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/24742992/disruption-of-retinoblastoma-protein-expression-in-the-intestinal-epithelium-impairs-lipid-absorption
#18
Pamela M Choi, Jun Guo, Christopher R Erwin, Wambui S Wandu, Jennifer A Leinicke, Yan Xie, Nicholas O Davidson, Brad W Warner
We previously demonstrated increased villus height following genetic deletion, or knockout, of retinoblastoma protein (Rb) in the intestinal epithelium (Rb-IKO). Here we determined the functional consequences of augmented mucosal growth on intestinal fat absorption and following a 50% small bowel resection (SBR). Mice with constitutively disrupted Rb expression in the intestinal epithelium (Rb-IKO) along with their floxed (wild-type, WT) littermates were placed on a high-fat diet (HFD, 42% kcal fat) for 54 wk...
May 15, 2014: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/24367182/update-on-raloxifene-role-in-reducing-the-risk-of-invasive-breast-cancer-in-postmenopausal-women
#19
REVIEW
Victor G Vogel
Risk factors allow us to define women who are at increased lifetime risk for breast cancer, and the most important factor is age. Benign breast disease increases risk, and the most important histologies are atypical lobular or ductal hyperplasia and lobular carcinoma in situ. Family history of breast cancer among first-degree relatives (mother, sisters, daughters) also increases risk. Quantitative measures of risk give accurate predictions of breast cancer incidence for groups of women but not for individual subjects...
October 20, 2011: Breast Cancer: Targets and Therapy
https://www.readbyqxmd.com/read/24148974/removal-potential-of-anti-estrogenic-activity-in-secondary-effluents-by-coagulation
#20
Xin Tang, Qian-Yuan Wu, Huang Huang, Hong-Ying Hu, Qing Li
Anti-estrogenic activity in wastewater is gaining increased attention because of its endocrine-disrupting function. In this study, the level and removal efficiency by coagulation of anti-estrogenic activity in secondary effluents of domestic wastewater treatment plants were studied. Anti-estrogenic activity was detected in secondary effluent samples at a tamoxifen (TAM) equivalent concentration level of 0.38-0.94 mg-TAML(-1). Dissolved organic matters (DOM) with the molecular weight (MW) less than 3000 Da in hydrophobic acids (HOA) and hydrophobic neutrals (HON) fractions of the secondary effluent were the key fractions related to anti-estrogenic activity...
November 2013: Chemosphere
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