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https://www.readbyqxmd.com/read/29169230/ultrasonographic-features-of-pure-ductal-carcinoma-italic-in-situ-italic-of-the-breast-correlations-with-pathologic-features-and-biological-markers
#1
Hwajin Cha, Yun-Woo Chang, Eun Ji Lee, Ji Young Hwang, Hyun Joo Kim, Eun Hye Lee, Jung Kyu Ryu
Purpose: The purpose of this study was to evaluate the ultrasonographic features of pure ductal carcinoma in situ (DCIS) of the breast and to evaluate the correlations of ultrasonographic features with pathologic and biological features. Methods: A total of 141 lesions in 138 women with pure DCIS who underwent preoperative breast ultrasonography were retrospectively reviewed. Ultrasonographic features were analyzed using the American College of Radiology Breast Imaging Reporting and Data System (BI-RADS) ultrasonography lexicon and the diagnostic criteria of the Japan Society of Ultrasonics in Medicine...
October 13, 2017: Ultrasonography
https://www.readbyqxmd.com/read/29169220/fermented-soymilk-alleviates-lipid-accumulation-by-inhibition-of-srebp-1-and-activation-of-nrf-2-in-the-hepatocellular-steatosis-model
#2
Sang Bong Ahn, Wen Hao Wu, Jong Hun Lee, Dae Won Jun, Jihyun Kim, Riji Kim, Tae-Bok Lee, Jin Hyun Jun
Ingredients of soy and fermented soy products have been widely utilized as food supplements for health-enhancing properties. The aim was to evaluate the effects of fermented soymilk (FSM) and soymilk (SM) on the free fatty acid-induced lipogenesis in the hepatocellular steatosis model. HepG2 cells were incubated with palmitic acid (PA) for 24 h to induce lipogenesis and accumulation of intracellular lipid contents. The PA treated cells were co-incubated with FSM, SM, genistein, and estrogen, respectively. Lipid accumulations in the PA-treated HpG2 cells were significantly decreased by co-incubation with FSM...
November 25, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29169115/prolonged-oxidative-stress-down-regulates-early-b-cell-factor-1-with-inhibition-of-its-tumor-suppressive-function-against-cholangiocarcinoma-genesis
#3
Napat Armartmuntree, Mariko Murata, Anchalee Techasen, Puangrat Yongvanit, Watcharin Loilome, Nisana Namwat, Chawalit Pairojkul, Chadamas Sakonsinsiri, Somchai Pinlaor, Raynoo Thanan
Early B cell factor 1 (EBF1) is a transcription factor involved in the differentiation of several stem cell lineages and it is a negative regulator of estrogen receptors. EBF1 is down-regulated in many tumors, and is believed to play suppressive roles in cancer promotion and progression. However, the functional roles of EBF1 in carcinogenesis are unclear. Liver fluke-infection-associated cholangiocarcinoma (CCA) is an oxidative stress-driven cancer of bile duct epithelium. In this study, we investigated EBF1 expression in tissues from CCA patients, CCA cell lines (KKU-213, KKU-214 and KKU-156), cholangiocyte (MMNK1) and its oxidative stress-resistant (ox-MMNK1-L) cell lines...
November 13, 2017: Redox Biology
https://www.readbyqxmd.com/read/29169052/estrogenic-and-anti-androgenic-effects-of-the-herbicide-tebuthiuron-in-male-nile-tilapia-oreochromis-niloticus
#4
Milena Devechi de Almeida, Thiago Scremin Boscolo Pereira, Sergio Ricardo Batlouni, Camila Nomura Pereira Boscolo, Eduardo Alves de Almeida
Tebuthiuron is a phenylurea herbicide widely used in agriculture that can reach the aquatic environments, possibly posing negative effects to the aquatic biota. Phenylurea herbicides, such as diuron, are known to cause estrogenic and anti-androgenic effects in fish, but no such effects were yet reported for tebuthiuron exposure. Thus, the aim of this study was to evaluate if tebuthiuron, at environmentally relevant concentrations (100 and 200ng/L) and after 25days of exposure have estrogenic and/or anti-androgenic effects on male of Nile tilapia (Oreochromis niloticus), through the evaluation of plasmatic testosterone (T) and estradiol (E2) levels, brain aromatase (CYP19) levels (western-blot), and by evaluating the histology of the testicles...
November 14, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/29168430/triple-negative-breast-cancer-prognostic-role-of-immune-related-factors-a-systematic-review
#5
Elisabeth Specht Stovgaard, Dorte Nielsen, Estrid Hogdall, Eva Balslev
PURPOSE: Treatment of breast cancer has been increasingly successful in recent years with the advent of HER2-receptor targeted treatment and endocrine treatment. However, the triple negative subgroup of breast cancer (TNBC) (estrogen-, progesterone- and HER2-receptor negative) still lacks targeted treatment options. TNBC is a type of breast cancer that often affects younger women, and generally has a worse prognosis than other types of breast cancer. Recently, the complex role of the immune system in cancer growth, elimination and metastasis has been the object of increased attention...
November 23, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29168427/neoadjuvant-letrozole-for-postmenopausal-estrogen-receptor-positive-her2-negative-breast-cancer-patients-a-study-from-the-danish-breast-cancer-cooperative-group-dbcg
#6
Signe Korsgaard Skriver, Anne-Vibeke Laenkholm, Birgitte Bruun Rasmussen, Jürgen Handler, Bo Grundtmann, Tove Filtenborg Tvedskov, Peer Christiansen, Ann S Knoop, Maj-Britt Jensen, Bent Ejlertsen
INTRODUCTION: Neoadjuvant endocrine treatment (NET) is a low-toxicity approach to achieve operability in locally advanced breast cancer, and to facilitate breast conservation in early breast cancer, particular in patients with highly estrogen receptor (ER) positive and HER2-negative disease. Here, we report the results obtained by neoadjuvant letrozole in patients with early breast cancer in a phase-II design. MATERIAL AND METHODS: A total of 119 postmenopausal women with ER-positive, HER2-negative operable breast cancer were assigned to four months of neoadjuvant letrozole before definitive surgery...
November 23, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29168353/genomic-risk-prediction-of-aromatase-inhibitor-related-arthralgia-in-patients-with-breast-cancer-using-a-novel-machine-learning-algorithm
#7
Raquel E Reinbolt, Stephen Sonis, Cynthia D Timmers, Juan Luis Fernández-Martínez, Ana Cernea, Enrique J de Andrés-Galiana, Sepehr Hashemi, Karin Miller, Robert Pilarski, Maryam B Lustberg
Many breast cancer (BC) patients treated with aromatase inhibitors (AIs) develop aromatase inhibitor-related arthralgia (AIA). Candidate gene studies to identify AIA risk are limited in scope. We evaluated the potential of a novel analytic algorithm (NAA) to predict AIA using germline single nucleotide polymorphisms (SNP) data obtained before treatment initiation. Systematic chart review of 700 AI-treated patients with stage I-III BC identified asymptomatic patients (n = 39) and those with clinically significant AIA resulting in AI termination or therapy switch (n = 123)...
November 23, 2017: Cancer Medicine
https://www.readbyqxmd.com/read/29168113/dynamics-of-bone-marrow-vsels-and-hscs-in-response-to-treatment-with-gonadotropin-and-steroid-hormones-during-pregnancy-and-evidence-to-support-their-asymmetric-symmetric-cell-divisions
#8
Ranita Ganguly, Sidhanath Metkari, Deepa Bhartiya
Gender plays an important role in the incidence of hematological malignancies and recently hematopoietic stem cells (HSCs) were found to proliferate more in females that gets further augmented during pregnancy. It was suggested that since basal numbers of HSCs remain the same in both sexes, possibly HSCs in females undergo increased self-renewal and apoptosis. Then how is self-renewal of stem cells regulated in males? More important, do HSCs undergo asymmetric cell divisions (ACD) or a more primitive population of pluripotent, very small embryonic-like stem cells (VSELs) undergo ACD to self-renew and specify into HSCs? Lot more clarity is required on the bone marrow stem cells biology...
November 22, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/29168063/abundant-tumor-infiltrating-lymphocytes-after-primary-systemic-chemotherapy-predicts-poor-prognosis-in-estrogen-receptor-positive-her2-negative-breast-cancers
#9
Takahiro Watanabe, Akira I Hida, Natsuko Inoue, Michiko Imamura, Yukie Fujimoto, Kouhei Akazawa, Seiichi Hirota, Yasuo Miyoshi
PURPOSE: The therapeutic effect of systemic treatment for breast cancer (BC) generally depends on its intrinsic subtypes. In addition, tumor infiltrating lymphocytes (TILs) are considered to be an independent factor for tumor shrinkage and disease prognosis. High TILs at baseline or after primary systemic chemotherapy are reported to be associated with better survival in triple-negative or human epithelial growth factor receptor 2 (HER2)-positive BCs. However, the prognostic value of TILs in estrogen receptor (ER)-positive and HER2-negative (ER+/HER2-) BC is still controversial...
November 22, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29168062/tree-nut-peanut-and-peanut-butter-intake-and-risk-of-postmenopausal-breast-cancer-the-netherlands-cohort-study
#10
Piet A van den Brandt, Lisette Nieuwenhuis
PURPOSE: Nut intake has been associated with reduced mortality and risk of cardiovascular diseases, but there is only limited evidence on cancer. We investigated the relationship between nut intake and risk of postmenopausal breast cancer, and estrogen/progesterone receptor (ER/PR) subtypes. METHODS: In The Netherlands Cohort Study, 62,573 women aged 55-69 years provided information on dietary and lifestyle habits in 1986. After 20.3 years of follow-up, 2,321 incident breast cancer cases and 1,665 subcohort members were eligible for multivariate case-cohort analyses...
November 22, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/29167821/ptk6-regulates-growth-and-survival-of-endocrine-therapy-resistant-er-breast-cancer-cells
#11
Koichi Ito, Sun Hee Park, Igor Katsyv, Weijia Zhang, Carmine De Angelis, Rachel Schiff, Hanna Y Irie
The non-receptor tyrosine kinase, PTK6/BRK, is highly expressed in multiple tumor types, including prostate, ovarian, and breast cancers, and regulates oncogenic phenotypes such as proliferation, migration, and survival. PTK6 inhibition also overcomes targeted therapy resistance of HER2+ breast cancer. Although PTK6 is highly expressed in ER+ Luminal breast cancers, the role of PTK6 in this subtype has not been elucidated. In this study, we investigated the functions of PTK6 in ER+ Luminal breast cancer cells, including those that are relatively resistant to estrogen deprivation or targeted endocrine therapies used in the treatment of ER+ cancers...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/29167148/neonatal-cardiomyocyte-hypertrophy-induced-by-endothelin-1-is-blocked-by-estradiol-acting-on-gper
#12
Gleisy Kelly Goncalves, Sergio Scalzo, Ana Paula Alves, Ubirajara Agero, Silvia Guatimosim, Adelina M Reis
Estradiol (E2) prevents cardiac hypertrophy and these protective actions are mediated by estrogen receptor (ER)α and ERβ. The G protein-coupled estrogen receptor (GPER) mediates many estrogenic effects and its activation in the heart has been observed in ischemia and reperfusion injury or hypertension models. However, the underlying mechanisms need to be fully elucidated. Herein we investigated whether the protective effect of E2 against cardiomyocytes hypertrophy induced by Endothelin-1 (ET-1) is mediated by GPER and the signaling pathways involved...
November 22, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29166868/prevalence-of-esr1-e380q-mutation-in-tumor-tissue-and-plasma-from-japanese-breast-cancer-patients
#13
Takashi Takeshita, Yutaka Yamamoto, Mutsuko Yamamoto-Ibusuki, Aiko Sueta, Mai Tomiguchi, Keiichi Murakami, Yoko Omoto, Hirotaka Iwase
BACKGROUND: ESR1 mutations have attracted attention as a potentially important marker and treatment target in endocrine therapy-resistant breast cancer patients. The E380Q mutation, which is one of the ESR1 mutations, is associated with estradiol (E2) hypersensitivity, increased DNA binding to the estrogen response element, and E2-independent constitutive trans-activation activity, but its frequency in ESR1 mutations remains unknown. The present study aimed to investigate the E380Q mutation in comparison with the other representative ESR1 mutations...
November 22, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29166805/a-case-of-repeated-mixed-mood-episodes-with-psychotic-symptoms-associated-with-the-premenstrual-period-in-a-patient-with-polycystic-ovarian-syndrome
#14
Isha Jalnapurkar, Jonathan Chase Findley
Studies have demonstrated that estrogen plays an important role in psychotic and mood disorders in women. Estrogens have a protective effect against the development of these disorders, while hypoestrogenic states may be a risk factor for the development or exacerbation of mental illness. Additionally, women with menstrual cycle abnormalities such as those with a history of anovulation may be more susceptible to monthly estrogen level fluctuation-related mood and psychotic symptoms. We present the case of a young woman with polycystic ovarian syndrome, who experienced three episodes of premenstrual mixed mood and psychotic symptoms...
November 22, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29166332/testicular-estrogen-secreting-leydig-cell-tumor-in-18f-fdg-pet-ct-an-incidental-detection-in-a-patient-treated-by-chemotherapy-for-hodgkin-lymphoma
#15
Axel Van Der Gucht, Zaher Maged, Rodolfo Burruni, Jean-Luc Barras, Niklaus Schaefer
We present images of a 50-year-old man who referred for treatment of a classic Hodgkin lymphoma. While F-FDG PET/CT demonstrated a complete metabolic remission after chemotherapy, an increased F-FDG uptake of a right testicular lesion in F-FDG PET/CT and an unexplained bilateral gynecomastia were observed. A benign Leydig cell tumor was histopathologically proved after a right radical orchiectomy. The serum estradiol level was abnormally elevated reflecting the estrogen-secreting profile. This report highlights that a focal F-FDG uptake in the testicular region with unexplained gynecomastia should suggest the diagnosis of an estrogen-secreting Leydig cell tumor on F-FDG PET/CT...
November 22, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29165897/lithospermum-erythrorhizon-root-and-its-naphthoquinones-repress-srebp1c-and-activate-pgc1%C3%AE-through-ampk%C3%AE
#16
Rodney A Velliquette, Arun Rajgopal, John Rebhun, Kelly Glynn
OBJECTIVE: To examine specific molecular mechanisms involved in modulating hepatic lipogenesis and mitochondria biogenesis signals by Lithospermum erythrorhizon (gromwell) root extract. METHODS: Stable cell lines with luciferase reporter constructs were generated to examine sterol regulatory element binding protein 1c (SREBP1c) and peroxisome proliferator-activated receptor gamma, coactivator 1 (PGC1) α promoter activity and estrogen-related receptor (ERR) α response element activity...
November 22, 2017: Obesity
https://www.readbyqxmd.com/read/29164974/clinical-and-molecular-characterization-of-brca-associated-breast-cancer-results-from-the-dbcg
#17
I M H Soenderstrup, A V Laenkholm, M B Jensen, J O Eriksen, A M Gerdes, T V O Hansen, T A Kruse, M J Larsen, I S Pedersen, M Rossing, M Thomassen, B Ejlertsen
BACKGROUND: In breast cancer (BC) patients a cancer predisposing BRCA1/2 mutation is associated with adverse tumor characteristics, risk assessment and treatment allocation. We aimed to estimate overall- (OS) and disease-free survival (DFS) according to tumor characteristics and treatment among women who within two years of definitive surgery for primary BC were shown to carry a mutation in BRCA1/2 . MATERIAL AND METHODS: From the clinical database of the Danish Breast Cancer Group we included 141 BRCA1 and 96 BRCA2 BC patients...
November 22, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29164964/a-mouse-model-of-disseminated-mantle-cell-lymphoma-highlights-a-lack-of-activity-of-estrogen-receptor-%C3%AE-agonists-toward-tumor-burden
#18
Simon Body, Anna Esteve-Arenys, Clara Recasens-Zorzo, Xavier Troussard, Gaël Roué, Brigitte Sola
No abstract text is available yet for this article.
November 22, 2017: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/29164806/enhanced-cytotoxicity-and-apoptosis-by-raloxifene-in-combination-with-estrogen-and-methotrexate-in-human-endometrial-stromal-thesc-cells
#19
Ivana Nikolic, Marija Andjelkovic, Milan Zaric, Ivanka Zelen, Zoran Milosavljevic, Petar Canovic, Marina Mitrovic
Endometrial hyperplasia is a condition that may lead to the development of endometrial carcinoma. Initially, changes of the endometrium are caused by the estrogen's hyperstimulation that may lead to the development of an irregular bleeding and the infertility problems. Therapy of endometrial hyperplasia's is limited to medical and surgical approaches. During the past decade, the new types of drugs were developed for the treatment of the endometrial hyperplasia. Here, for the first time, we investigated the cytotoxic effects of the various combinations of estrogen, raloxifene and methotrexate in human ThESC cell line as a possible potential treatment of the endometrial hyperplasia...
November 22, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/29164517/the-mycoestrogen-zearalenone-in-portuguese-flowing-waters-and-its-potential-environmental-impact
#20
Célia S M Laranjeiro, Liliana João Gatões da Silva, André M P T Pereira, Angelina Pena, Celeste M Lino
This study provides the first environmental risk assessment (ERA) for zearalenone (ZEN), the only known mycoestrogen, based on a broad-scale investigation on its occurrence in rivers and creeks from Portugal. Water sample filtration and immunoaffinity columns (IAC) clean-up followed by liquid chromatograph with tandem mass spectrometry (LC/MS (n) ) provided an analytical method with good analytical performance. ZEN levels were determined for seven Portuguese rivers and one creek, during two different seasons, in a total of 38 samples collected upstream wastewater treatment plants (WWTPs)...
November 21, 2017: Mycotoxin Research
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