keyword
MENU ▼
Read by QxMD icon Read
search

progesterone receptor

keyword
https://www.readbyqxmd.com/read/28098562/primary-neuroendocrine-carcinoma-of-the-breast-a-single-center-experience-and-review-of-the-literature
#1
Paolo Locurto, Angelo Danilo Antona, Antonietta Grillo, Antonio Ciulla, Stefania Martorana, Calogero Cipolla, Giuseppa Graceffa, Salvatore Vieni
: Neuroendocrine carcinoma of the breast is an extremely rare tumor. A standard treatment has yet to be established because only a few cases have been reported in literature. The authors report five cases observed from January 2007 to December 2014 and a review of literature. Four patients underwent quadrantectomy and in two cases axillary nodal dissection and only one to mastectomy with axillary nodal dissection. Tumor size was from T1 to T2 with N0 to N1, according TNM classification...
December 6, 2016: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28096479/igf-1-receptor-modulates-foxo1-mediated-tamoxifen-response-in-breast-cancer-cells
#2
Ali Vaziri-Gohar, Yan Zheng, Kevin D Houston
: Tamoxifen is a common adjuvant treatment for ERalpha-positive breast cancer patients, however acquired resistance abrogates the efficacy of this therapeutic approach. We recently demonstrated that G protein-coupled estrogen receptor 1 (GPER1) mediates tamoxifen action in breast cancer cells by inducing insulin-like growth factor binding protein-1 (IGFBP-1) to inhibit IGF-1-dependent signaling. To determine if dysregulation of IGFBP-1 induction is associated with tamoxifen resistance, IGFBP-1 transcription was measured in tamoxifen-resistant MCF-7 cells (TamR) after tamoxifen (Tam) treatment...
January 17, 2017: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/28096433/sex-differences-in-the-development-of-prolactinoma-in-mice-overexpressing-hcg%C3%AE-role-of-tgf%C3%AE-1
#3
Erika Yanil Faraoni, María Andrea Camilletti, Alejandra Inés Abeledo Machado, Laura Daniela Ratner, Fernanda De Fino, Ilpo T Huhtaniemi, Susana B Rulli, Graciela Diaz-Torga
Female transgenic mice that overexpress the human chorionic gonadotrophin β subunit (hCGβ+) develop prolactinomas, while hCGβ+ males do not. The high levels of circulating hCG induces massive luteinization in the ovary of hCGβ+ females, and progesterone becomes the primary steroid hormone produced, but estradiol remains at physiological level. The involvement of high levels of progesterone in lactotroph proliferation is not clearly understood; hence the pathogenesis of prolactinomas in hCGβ+ females remains unclear...
January 17, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28096236/inhibitory-effects-of-%C3%AE-and-%C3%AE-tocopherols-on-estrogen-stimulated-breast-cancer-in-vitro-and-in-vivo
#4
Min Ji Bak, Soumyasri Das Gupta, Joseph Wahler, Hong Jin Lee, Xiaowei Li, Mao-Jung Lee, Chung S Yang, Nanjoo Suh
Estrogens have been implicated as complete carcinogens for breast and other tissues through mechanisms involving increased cell proliferation, oxidative stress and DNA damage. Because of their potent antioxidant activity and other effects, tocopherols have been shown to exert anti-tumor activities in various cancers. However, limited information is available on the effect of different forms of tocopherols in estrogen-mediated breast cancer. To address this, we examined the effects of α-, γ- and δ-tocopherols as well as a natural γ-tocopherol rich mixture of tocopherols, γ-TmT, on estrogen-stimulated MCF-7 cells in vitro and in vivo...
January 17, 2017: Cancer Prevention Research
https://www.readbyqxmd.com/read/28095342/orthognathic-surgery-during-breast-cancer-treatment-a-case-report
#5
Tsuyoshi Shimo, Norie Yoshioka, Masahiro Nakamura, Soichiro Ibaragi, Tatsuo Okui, Yuki Kunisada, Masanori Masui, Mayumi Yao, Koji Kishimoto, Shoko Yoshida, Akiyoshi Nishiyama, Hiroshi Kamioka, Akira Sasaki
INTRODUCTION: In recent years, patients with orthognathic surgery in middle-aged and elderly people have come to be a more frequent occurrence. Breast cancer is the most frequently diagnosed cancer in woman worldwide, and its prevalence rate is steadily increasing. PRESENTATION OF CASE: We report a case of a 47-year-old Japanese woman in whom left-side breast cancer (Stage 1) was unexpectedly found just before orthognathic surgery in April 2012. Breast-conserving surgery was performed (estrogen receptor+, progesterone receptor+, HER2 -, surgical margin+, sentinel lymph node +) that May...
January 3, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28092737/complex-molecular-changes-induced-by-chronic-progestogens-exposure-in-roach-rutilus-rutilus
#6
Gabor Maasz, Zita Zrinyi, Peter Takacs, Sandor Lovas, Istvan Fodor, Tibor Kiss, Zsolt Pirger
In our previous study, we measured 0.23-13.67ng/L progestogens (progesterone, drospirenone, levonorgestrel) in natural waters in the catchment area of the largest shallow lake of Central Europe, Lake Balaton. Progestogen contaminations act as potent steroids with mixed progestagenic, androgenic and mild estrogenic effects that is why our aim was to investigate the morphological and molecular effects of mixture of progesterone, drospirenone, and levonorgestrel in environmentally relevant (10ng/L) and higher (50 and 500ng/L) exposure concentrations in common roach, Rutilus rutilus...
January 13, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28092110/simultaneous-detection-of-three-sex-steroid-hormone-classes-using-a-novel-yeast-based-biosensor
#7
Alexandre Chamas, Ha Thi Minh Pham, Martin Jähne, Karina Wettwer, Steffen Uhlig, Kirsten Simon, Almuth Einspanier, Kim Baronian, Gotthard Kunze
A biosensor detecting estrogens, progestogens and androgens in complex samples and in a single step is described. Three Arxula adeninivorans yeast strains were created, each strain producing a different recombinant human hormone receptor and a different fluorescent reporter protein. These strains were then mixed to create G1212/YRC102-hHR-fluo, the biological component of the biosensor. During incubation with G1212/YRC102-hHR-fluo, hormones present in a sample bind to their target receptor, which leads to the production of a specific fluorescent protein...
January 16, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28090417/pattern-of-local-recurrence-and-distant-metastasis-in-breast-cancer-by-molecular-subtype
#8
Xingrao Wu, Ayesha Baig, Goulnar Kasymjanova, Kamran Kafi, Christina Holcroft, Hind Mekouar, Annie Carbonneau, Boris Bahoric, Khalil Sultanem, Thierry Muanza
BACKGROUND AND PURPOSE:  No longer considered a single disease entity, breast cancer is being classified into several distinct molecular subtypes based on gene expression profiling. These subtypes appear to carry prognostic implications and have the potential to be incorporated into treatment decisions. In this study, we evaluated patterns of local recurrence (LR), distant metastasis (DM), and association of survival with molecular subtype in breast cancer patients in the post-adjuvant radiotherapy setting...
December 9, 2016: Curēus
https://www.readbyqxmd.com/read/28087820/emerging-functional-roles-of-nuclear-receptors-in-breast-cancer
#9
Tram B Doan, Justine Graham, Christine Clarke
Nuclear receptors (NRs) have been targets of intensive drug development for decades due to their roles as key regulators of multiple developmental, physiological and disease processes. In breast cancer, expression of the estrogen and progesterone receptor remains clinically important in predicting prognosis and determining therapeutic strategies. More recently, there is growing evidence supporting the involvement of multiple nuclear receptors other than the estrogen and progesterone receptors, in the regulation of various processes important to the initiation and progression of breast cancer...
January 13, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28086982/reproductive-factors-and-the-risk-of-triple-negative-breast-cancer-in-white-women-and-african-american-women-a-pooled-analysis
#10
Huiyan Ma, Giske Ursin, Xinxin Xu, Eunjung Lee, Kayo Togawa, Lei Duan, Yani Lu, Kathleen E Malone, Polly A Marchbanks, Jill A McDonald, Michael S Simon, Suzanne G Folger, Jane Sullivan-Halley, Dennis M Deapen, Michael F Press, Leslie Bernstein
BACKGROUND: Early age at menarche, nulliparity, late age at first completed pregnancy, and never having breastfed, are established breast cancer risk factors. However, among breast cancer subtypes, it remains unclear whether all of these are risk factors for triple-negative breast cancer (TNBC). METHODS: We evaluated the associations of these reproductive factors with TNBC, in 2658 patients with breast cancer (including 554 with TNBC) and 2448 controls aged 20-64 years, who participated in one of the three population-based case-control studies: the Women's Contraceptive and Reproductive Experiences Study, the Women's Breast Carcinoma in situ Study, or the Women's Learning the Influence of Family and Environment Study...
January 13, 2017: Breast Cancer Research: BCR
https://www.readbyqxmd.com/read/28081544/nomogram-to-predict-pathologic-complete-response-in-her2-positive-breast-cancer-treated-with-neoadjuvant-systemic-therapy
#11
Takeo Fujii, Takahiro Kogawa, Jimin Wu, Aysegul A Sahin, Dian D Liu, Mariana Chavez-MacGregor, Sharon H Giordano, Akshara Raghavendra, Rushmy K Murthy, Debu Tripathy, Yu Shen, Jose-Miguel Yamal, Naoto T Ueno
BACKGROUND: Pathologic complete response (pCR) is associated with improved survival outcomes in patients with HER2-positive primary breast cancer. We developed a nomogram to predict the probability of pCR rates by using oestrogen receptor (ER) expression, progesterone receptor (PR) expression and HER2/CEP17 ratio as continuous variables. METHODS: We retrospectively reviewed patients with stages I-III HER2-positive invasive breast cancer who had definitive surgery in 1999-2015 and received neoadjuvant systemic therapy (NST)...
January 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28078854/changes-of-expression-of-estrogen-and-progestrone-receptors-human-epithelial-growth-factor-receptor-2-and-ki-67-after-neoadjuvant-chemotherapy-in-the-treatment-of-breast-cancer
#12
M L Li, Y Dong, S L Luan, Z H Zhao, F L Ning
Recent studies suggest that the development and prognosis of breast cancer is in close correlation to molecular subtype of breast cancer. Neoadjuvant chemotherapy has been extensively applied in the treatment of local breast cancer in advanced stage. In order to verify the correlation between expression changes of estrogen receptor, progestrone receptor, human epithelial growth factor receptor 2 and Ki-67 after neoadjuvant chemotherapy and neoadjuvant chemotherapy, we studied 120 patients with stage IIAIIIC breast cancer who underwent neoadjuvant chemotherapy in Binzhou Medical University Hospital, Shandong, China from February 2011 to February 2015...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28078498/perinatal-exposure-to-bisphenol-a-or-diethylstilbestrol-increases-the-susceptibility-to-develop-mammary-gland-lesions-after-estrogen-replacement-therapy-in-middle-aged-rats
#13
Ayelen L Gomez, Melisa B Delconte, Gabriela A Altamirano, Lucia Vigezzi, Veronica L Bosquiazzo, Luís F Barbisan, Jorge G Ramos, Enrique H Luque, Mónica Muñoz-de-Toro, Laura Kass
The development of the mammary gland is a hormone-regulated event. Several factors can dysregulate its growth and make the gland more susceptible to cellular transformation. Among these factors, perinatal exposure to xenoestrogens and hormone replacement therapy has been associated with increased risk of developing breast cancer. Here, we assessed the effects induced by estrogen replacement therapy (ERT) in ovariectomized (OVX) middle-aged rats and whether perinatal exposure to diethylstilbestrol (DES) or bisphenol A (BPA) modified these effects in the mammary gland...
January 11, 2017: Hormones & Cancer
https://www.readbyqxmd.com/read/28076434/diabetes-and-breast-cancer-subtypes
#14
Heleen K Bronsveld, Vibeke Jensen, Pernille Vahl, Marie L De Bruin, Sten Cornelissen, Joyce Sanders, Anssi Auvinen, Jari Haukka, Morten Andersen, Peter Vestergaard, Marjanka K Schmidt
BACKGROUND: Women with diabetes have a worse survival after breast cancer diagnosis compared to women without diabetes. This may be due to a different etiological profile, leading to the development of more aggressive breast cancer subtypes. Our aim was to investigate whether insulin and non-insulin treated women with diabetes develop specific clinicopathological breast cancer subtypes compared to women without diabetes. METHODS AND FINDINGS: This cross-sectional study included randomly selected patients with invasive breast cancer diagnosed in 2000-2010...
2017: PloS One
https://www.readbyqxmd.com/read/28074716/semiquantitative-immunohistochemical-detection-of-progesterone-receptors-in-male-accessory-sex-glands-as-a-screening-assay-for-anabolic-steroid-use-in-bulls
#15
Claudia Zanardello, Katia Capello, Roberto Stella, Giancarlo Biancotto, Marta Vascellari
We investigated the immunohistochemical expression of progesterone receptors (PRs) in the prostate and bulbourethral glands of thirty-two 10-14-mo-old Charolais bulls following treatment with a low dosage of estrogens. Animals were divided into 2 groups: 16 animals (group T) were treated for 71 d with a therapeutic dose of trenbolone acetate and estradiol by subcutaneous implant, 16 animals (group C) received no treatment. Urine samples were collected both at the beginning of the trial and 9 times during the study...
January 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28074330/comparison-of-core-needle-biopsy-and-excision-specimens-for-the-accurate-evaluation-of-breast-cancer-molecular-markers-a-report-of-1003-cases
#16
Jie Chen, Zu Wang, Qing Lv, Zhenggui Du, Qiuwen Tan, Di Zhang, Bingjun Xiong, Helin Zeng, Juxiang Gou
In this study, we compared the accuracy of marker evaluation in core needle biopsy (CNB) specimens versus excision specimens (ESs) from breast cancer patients. This retrospective study used data collected from the breast cancer database at the West China Hospital, China. Immunohistochemistry (IHC) results from CNB specimens and ESs were compared, using estrogen receptor (ER), progesterone receptor (PR), human epidermal growth factor receptor 2 (HER2), and Ki-67 as markers. Molecular subtyping and endocrine therapy usage correlations based on CNB samples and ESs were evaluated...
January 10, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28069430/functional-characterization-of-avidins-in-amphioxus-branchiostoma-japonucum-evidence-for-a-dual-role-in-biotin-binding-and-immune-response
#17
Xiaomin Guo, Jiajing Xin, Peng Wang, Xiaoyuan Du, Guangdong Ji, Zhan Gao, Shicui Zhang
Avidin is well known for its high affinity to biotin and has been found in many egg-laying vertebrate species. However, little is known about avidin in invertebrate species to date. Here we clearly showed the presence of two avidin genes, Bjavidin1 and Bjavidin2, in the amphioxus Branchiostoma japonicum, the first ones in non-vertebrate animals. We also showed that the expression of both Bjavidin1 and Bjavidin2 were inducible by progesterone, LTA and LPS. Moreover, we demonstrated for the first time that in addition to biotin-binding, the recombinant proteins rBjAVIDIN1 and rBjAVIDIN2 were not only able to interact with Gram-positive and negative bacteria as well as their conserved surface components LTA and LPS but also to enhance phagocytosis of bacteria by macrophages, suggesting that BjAVIDIN1 and BjAVIDIN2 both function as pattern recognition receptors and opsonins...
January 6, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28065637/the-steroid-metabolite-16-%C3%AE-oh-androstenedione-generated-by-cyp21a2-serves-as-a-substrate-for-cyp19a1
#18
J Neunzig, M Milhim, L Schiffer, Y Khatri, J Zapp, A Sánchez-Guijo, M F Hartmann, S A Wudy, R Bernhardt
The 21-hydroxylase (CYP21A2) is a steroidogenic enzyme crucial for the synthesis of mineralo- and glucocorticoids. It is described to convert progesterone as well as 17-OH-progesterone, through a hydroxylation at position C21, into 11-deoxycorticosterone (DOC) and 11-deoxycortisol (RSS), respectively. In this study we unraveled CYP21A2 to have a broader steroid substrate spectrum than assumed. Utilizing a reconstituted in vitro system, consisting of purified human CYP21A2 and human cytochrome P450 reductase (CPR) we demonstrated that CYP21A2 is capable to metabolize DOC, RSS, androstenedione (A4) and testosterone (T)...
January 5, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28064383/algorithms-for-prediction-of-the-oncotype-dx-recurrence-score-using-clinicopathologic-data-a-review-and-comparison-using-an-independent-dataset
#19
REVIEW
Michael R Harowicz, Timothy J Robinson, Michaela A Dinan, Ashirbani Saha, Jeffrey R Marks, P Kelly Marcom, Maciej A Mazurowski
PURPOSE: Given the potential savings in cost and resource utilization, several algorithms have been proposed to predict Oncotype DX recurrence score (ODX RS) using commonly acquired histopathologic variables. Although it is promising, additional independent validation of these surrogate markers is needed prior to guide the patient management. METHODS: In this retrospective study, we analyzed 305 patients with invasive breast cancer at our institution who had ODX RS available...
January 7, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/28064235/outcomes-in-patients-with-pt1-t2-pn0-n1-breast-cancer-after-conservative-surgery-and-whole-breast-radiotherapy
#20
Marianna Trignani, Clelia DI Carlo, Carmen Cefalogli, Marianna Nuzzo, Lucia Anna Ursini, Luciana Caravatta, Francesca Perrotti, Marta DI Nicola, Ambra Pamio, Domenico Genovesi
AIM: To evaluate locoregional recurrence, overall survival, disease-free survival and prognostic influence of the number of positive lymph nodes and other variables in breast cancer treatment. PATIENTS AND METHODS: A total of 377 patients with pT1-T2, pN0-N1 invasive breast carcinoma treated from 2005 to 2013 were retrospectively evaluated. Patients underwent conservative surgery followed by whole-breast radiotherapy. Clavicular region irradiation was not performed...
January 2017: In Vivo
keyword
keyword
95492
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"