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https://www.readbyqxmd.com/read/28931356/menopause-a-complex-and-controversial-journey
#1
Salam Chalouhi
Menopause is defined as permanent cessation of menstrual periods, determined retrospectively after a woman has experienced 12 months of amenorrhea without any other obvious cause. Over the years, the discourse surrounding the Climacteric was mainly elicited as a "disease of the castrates", as opposed to the feminist views. There has been a large feminist contribution to both the debate of contraception and menopause in the last few years. Over the years, menopause has been treated in a uniform fashion, as a disease, excluding the different circumstances and lived experiences that patients go through during this sensitive period...
September 2017: Post Reproductive Health
https://www.readbyqxmd.com/read/28930697/overexpression-of-muc1-and-genomic-alterations-in-its-network-associate-with-prostate-cancer-progression
#2
Xiaozeng Lin, Yan Gu, Anil Kapoor, Fengxiang Wei, Tariq Aziz, Diane Ojo, Yanzhi Jiang, Michael Bonert, Bobby Shayegan, Huixiang Yang, Khalid Al-Nedawi, Pierre Major, Damu Tang
We investigate the association of MUC1 with castration-resistant prostate cancer (CRPC), bone metastasis, and PC recurrence. MUC1 expression was studied in patient-derived bone metastasis and CRPCs produced by prostate-specific PTEN(-/-) mice and LNCaP xenografts. Elevations in MUC1 expression occur in CRPC. Among nine patients with hormone-naïve bone metastasis, eight express MUC1 in 61% to 100% of PC cells. Utilizing cBioPortal PC genomic data, we organized a training (n=300), testing (n=185), and validation (n=194) cohort...
September 17, 2017: Neoplasia: An International Journal for Oncology Research
https://www.readbyqxmd.com/read/28930600/line-1-as-a-therapeutic-target-for-castration-resistant-prostate-cancer
#3
Nadine Houede, Pier Vincenzo Piazza, Philippe Pourquier
Prostate cancer is the third leading cause of death by cancer in men. Surgery or hormone deprivation usually contains the progression of the local forms of the disease. In metastatic situations, chemotherapy or second generation hormone therapies are used with an overall survival that never exceeds 36 months when tumors become resistant to castration. In the search for new alternatives, clinical trials with various classes of anticancer drugs have been performed, including chemotherapies, targeted therapies with kinase inhibitors, radium-223, or immunotherapies with somehow limited efficacy...
January 1, 2018: Frontiers in Bioscience (Landmark Edition)
https://www.readbyqxmd.com/read/28928853/the-influence-of-prednisone-on-the-efficacy-of-cabazitaxel-in-men-with-metastatic-castration-resistant-prostate-cancer
#4
Carlo Buonerba, Guru Sonpavde, Francesca Vitrone, Davide Bosso, Livio Puglia, Michela Izzo, Simona Iaccarino, Luca Scafuri, Margherita Muratore, Francesca Foschini, Brigitta Mucci, Vincenzo Tortora, Martina Pagliuca, Dario Ribera, Vittorio Riccio, Rocco Morra, Mirta Mosca, Nicola Cesarano, Ileana Di Costanzo, Sabino De Placido, Giuseppe Di Lorenzo
Background: Cabazitaxel is a second-generation taxane that is approved for use with concomitant low dose daily prednisone in metastatic castration resistant prostate cancer (mCRPC) after docetaxel failure. Since the role of daily corticosteroids in improving cabazitaxel efficacy or ameliorating its safety profile has not been adequately investigated so far, we compared outcomes of patients receiving cabazitaxel with or without daily corticosteroids in a retrospective single-Institution cohort of mCRPC patients...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28928839/analysis-of-resistance-associated-gene-expression-in-docetaxel-resistant-prostate-cancer-cells
#5
Sangchul Lee, Kwangtaek Kim, Jin-Nyoung Ho, Hyunjin Jin, Seok-Soo Byun, Eunsik Lee
Docetaxel-based chemotherapy is the standard treatment for metastatic castration-resistant prostate cancer (CRPC). However, a number of patients with metastatic CRPC are refractory to docetaxel or develop docetaxel resistance. The underlying molecular mechanisms of docetaxel resistance remain unclear, which is a significant burden to the management of metastatic prostate cancer. In the present study, the differential gene expression between docetaxel-sensitive (PC3) and docetaxel-resistant (PC3DR2) prostate cancer cells was identified using DNA microarrays, western blot analysis and reverse transcription-quantitative polymerase chain reaction...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28928235/testosterone-protects-high-fat-low-carbohydrate-diet-induced-non-alcoholic-fatty-liver-disease-in-castrated-male-rats-mainly-via-modulating-er-stress
#6
Yue Jia, Jennifer Kuang Yee, Christina Wang, Liana Nikolaenko, Maruja Diaz-Arjonilla, Joshua N Cohen, Samuel W French, Peter Y Liu, YanHe Lue, Wai-Nang Paul Lee, Ronald S Swerdloff
We previously showed that testosterone (T) deficiency enhanced high-fat diet (HFD) induced hepatic steatosis in rats that was independent of insulin resistance, and that T replacement reduced hepatic macrovesicular fat accumulation and inflammation. The present report explores the mechanism of T-protective effects on HFD-induced steatohepatitis. Adult male rats were randomized into four treatment groups for 15 weeks (intact rats on regular chow diet or HFD, and castrated rats on HFD with/without T replacement)...
September 19, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28928128/targeting-a-single-alternative-polyadenylation-site-coordinately-blocks-expression-of-androgen-receptor-mrna-splice-variants-in-prostate-cancer
#7
Jamie L Van Etten, Michael Nyquist, Yingming Li, Rendong Yang, Yeung Ho, Rachel Johnson, Olivia Ondigi, Daniel F Voytas, Christine Henzler, Scott M Dehm
Prostate cancer is the second leading cause of male cancer deaths due to disease progression to castration-resistant prostate cancer (CRPC). Androgen receptor (AR) splice variants including AR-V7 function as constitutively active transcription factors in CRPC cells, thereby promoting resistance to AR-targeted therapies. To date, there are no AR variant-specific treatments for CRPC. Here we report that the splicing of AR variants AR-V7 as well as AR-V1 and AR-V9 is regulated coordinately by a single polyadenylation signal in AR intron 3...
August 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28926824/effectiveness-of-different-corn-dried-distillers-grains-with-solubles-feeding-strategies-and-increasing-the-time-intervals-between-the-second-improvest-dose-and-slaughter-of-immunologically-castrated-pigs-on-belly-and-pork-fat-quality
#8
E K Harris, M A Mellencamp, L J Johnston, R B Cox, G C Shurson
Effects of dried distillers grains with solubles (DDGS) feeding strategies (a corn-soybean meal (CS) fed continously; CS+40% DDGS fed continously; CS+40, 30, 20, or 10% DDGS in 4 phases, respectively; or CS+40% DDGS in phases 1 to 3 and CS in phase 4 before slaughter) on belly and pork fat quality of immunologically castrated (n=192) pigs were evaluated. All pigs received the first Improvest dose at 11week of age, and the second dose at 9, 7, or 5week before slaughter at 24week of age. Increasing the time interval of the second Improvest dose before slaughter reduced IV in all fat depots and increased belly thickness...
September 9, 2017: Meat Science
https://www.readbyqxmd.com/read/28925899/effect-of-androgen-deprivation-therapy-adt-on-bone-health-status-in-men-with-prostate-cancer
#9
Nur Vaizura Mohamad, Ima Nirwana Soelaiman, Kok Yong Chin
Backgraoung and Objective: Prostate cancer is the most prevalent non-cutaneous cancer in men, which causes significant mortality among the patients. Since prostate cancer cells are stimulated by androgen, effective androgen ablation in men is one of the essential strategies in the management of prostate cancer. DISCUSSION: Several treatment options are available for different stages of prostate cancer. Hormone therapy known as androgen deprivation therapy (ADT) is the first line treatment used to treat advanced prostate cancer...
September 18, 2017: Endocrine, Metabolic & Immune Disorders Drug Targets
https://www.readbyqxmd.com/read/28925066/beyond-the-androgen-receptor-ii-new-approaches-to-understanding-and-treating-metastatic-prostate-cancer-report-from-the-2017-coffey-holden-prostate-cancer-academy-meeting
#10
REVIEW
Andrea K Miyahira, Heather H Cheng, Wassim Abida, Leigh Ellis, Lauren C Harshman, Daniel E Spratt, Jonathan W Simons, Kenneth J Pienta, Howard R Soule
INTRODUCTION: The 2017 Coffey-Holden Prostate Cancer Academy (CHPCA) Meeting, "Beyond the Androgen Receptor II: New Approaches to Understanding and Treating Metastatic Prostate Cancer," was held in Carlsbad, California from June 14-17, 2017. METHODS: The CHPCA is an annual scientific conference hosted by the Prostate Cancer Foundation (PCF) that is uniquely designed to produce extensive and constructive discussions on the most urgent and impactful topics concerning research into the biology and treatment of metastatic prostate cancer...
September 18, 2017: Prostate
https://www.readbyqxmd.com/read/28924064/circulating-steroid-hormone-variations-throughout-different-stages-of-prostate-cancer
#11
Gido Snaterse, Jenny A Visser, Wiebke Arlt, Johannes Hofland
Steroid hormones play a central role in the maintenance and progression of prostate cancer. The androgen receptor is the primary driver of tumor cell proliferation and is activated by the androgens testosterone and 5α-dihydrotestosterone. Inhibition of this pathway through medical or surgical castration improves survival in the majority of advanced prostate cancer patients. However, conversion of adrenal androgen precursors and alternative steroidogenic pathways have been found to contribute to tumor progression and resistance to treatment...
September 18, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28923776/prostate-cancer-xenografts-and-hormone-induced-prostate-carcinogenesis
#12
REVIEW
Dalton T McLean, Douglas W Strand, William A Ricke
Despite the advancement of transgenic and gene knockout animal models in the prostate cancer research, there is still a need for utilizing xenograft models. Xenografts can be grown in multiple sites/organs within immunocompromised animals such as mice and rats. Although prostate xenografts have been derived from many species, human cells and tissues are the most commonly used due to their potential clinical significance. Xenograft models that progress from one state or stage to another are commonly used to address important scientific questions including malignant transformation, metastatic spread, and castration resistance...
September 8, 2017: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/28920786/cryptococcus-neoformans-var-grubii-associated-renal-amyloidosis-causing-protein-losing-nephropathy-in-a-red-kangaroo-macropus-rufus
#13
Mary Irene Thurber, Jenessa Gjeltema, Matthew Sheley, Ray F Wack
A 10-year-old male castrated red kangaroo (Macropus rufus) presented with mandibular swelling. Examination findings included pitting edema with no dental disease evident on examination or radiographs. The results of blood work were moderate azotemia, hypoalbuminemia, and severely elevated urine protein:creatinine ratio (9.9). Radiographs showed an interstitial pattern of the caudal right lung, and an abdominal ultrasound demonstrated scant effusion. Symptomatic and empirical therapy with antibiotics, anti-inflammatory drugs, and an angiotensin-converting enzyme (ACE) inhibitor did not resolve clinical signs...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28919714/radium-223-dichloride-for-prostate-cancer-treatment
#14
REVIEW
Emmanuel Deshayes, Mathieu Roumiguie, Constance Thibault, Philippe Beuzeboc, Florent Cachin, Christophe Hennequin, Damien Huglo, François Rozet, Diana Kassab-Chahmi, Xavier Rebillard, Nadine Houédé
Prostate cancer is the most common malignant disease in men. Several therapeutic agents have been approved during the last 10 years. Among them, radium-223 dichloride (Xofigo(®)) is a radioactive isotope that induces irreversible DNA double-strand breaks and consequently tumor cell death. Radium-223 dichloride is a calcium-mimetic agent that specifically targets bone lesions. Radium-223 dichloride has been approved for the treatment of metastatic castration-resistant prostate cancer with symptomatic bone metastases, without known visceral metastases...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28918838/inhibition-of-midkine-suppresses-prostate-cancer-cd133-stem-cell-growth-and-migration
#15
Suat Erdogan, Zeynep B Doganlar, Oguzhan Doganlar, Kader Turkekul, Riza Serttas
BACKGROUND: Midkine (MDK) is a tumor-promoting factor that is often overexpressed in various human carcinomas, and the role of MDK has not yet been fully investigated in prostate cancer stem cells. MATERIALS AND METHODS: Prostate cancer CD133(+) stem cells (PCSCs) were isolated from human castration-resistant PC3 cells. PCSCs were treated with different concentrations of MDK inhibitor, iMDK, for 24-72 hours. The IC50 values were determined by the MTT test. Endogenous MDK messenger RNA expression was knocked down by small interfering RNA...
September 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28917268/targeting-androgen-independent-pathways-new-chances-for-patients-with-prostate-cancer
#16
REVIEW
C Cattrini, E Zanardi, G Vallome, A Cavo, L Cerbone, A Di Meglio, C Fabbroni, M M Latocca, F Rizzo, C Messina, A Rubagotti, P Barboro, F Boccardo
Androgen deprivation therapy (ADT) is the mainstay treatment for advanced prostate cancer (PC). Most patients eventually progress to a condition known as castration-resistant prostate cancer (CRPC), characterized by lack of response to ADT. Although new androgen receptor signaling (ARS) inhibitors and chemotherapeutic agents have been introduced to overcome resistance to ADT, many patients progress because of primary or acquired resistance to these agents. This comprehensive review aims at exploring the mechanisms of resistance and progression of PC, with specific focus on alterations which lead to the activation of androgen receptor (AR)-independent pathways of survival...
October 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28916652/lsd1-mediated-epigenetic-reprogramming-drives-cenpe-expression-and-prostate-cancer-progression
#17
Yi Liang, Musaddeque Ahmed, Haiyang Guo, Fraser Soares, Junjie T Hua, Shuai Gao, Catherine Lu, Christine Poon, Wanting Han, Jens Langstein, Muhammad B Ekram, Brian Li, Elai Davicioni, Mandeep Takhar, Nicholas Erho, R Jeffrey Karnes, Dianne Chadwick, Theodorus van der Kwast, Paul C Boutros, Cheryl H Arrowsmith, Felix Y Feng, Anthony Michael Joshua, Amina Zoubeidi, Changmeng Cai, Housheng H He
Androgen receptor (AR) signaling is a key driver of prostate cancer (PCa), and androgen-deprivation therapy (ADT) is a standard treatment for patients with advanced and metastatic disease. However, patients receiving ADT eventually develop incurable castration-resistant PCa (CRPC). Here we report that the chromatin modifier LSD1, an important regulator of AR transcriptional activity, undergoes epigenetic reprogramming in CRPC. LSD1 reprogramming in this setting activated a subset of cell cycle genes including CENPE, a centromere binding protein and mitotic kinesin...
September 15, 2017: Cancer Research
https://www.readbyqxmd.com/read/28915573/lipid-catabolism-inhibition-sensitizes-prostate-cancer-cells-to-antiandrogen-blockade
#18
Thomas W Flaig, Maren Salzmann-Sullivan, Lih-Jen Su, Zhiyong Zhang, Molishree Joshi, Miguel A Gijón, Jihye Kim, John J Arcaroli, Adrie Van Bokhoven, M Scott Lucia, Francisco G La Rosa, Isabel R Schlaepfer
Prostate cancer (PCa) is the most common malignancy among Western men and the second leading-cause of cancer related deaths. For men who develop metastatic castration resistant PCa (mCRPC), survival is limited, making the identification of novel therapies for mCRPC critical. We have found that deficient lipid oxidation via carnitine palmitoyltransferase (CPT1) results in decreased growth and invasion, underscoring the role of lipid oxidation to fuel PCa growth. Using immunohistochemistry we have found that the CPT1A isoform is abundant in PCa compared to benign tissue (n=39, p<0...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28915245/effects-of-gnrh-vaccination-in-wild-and-captive-african-elephant-bulls-loxodonta-africana-on-reproductive-organs-and-semen-quality
#19
Imke Lueders, Debbie Young, Liana Maree, Gerhard van der Horst, Ilse Luther, Stephan Botha, Brendan Tindall, Geoffrey Fosgate, André Ganswindt, Henk J Bertschinger
OBJECTIVES: Although the African elephant (Loxodonta africana) is classified as endangered by the International Union for Conservation of Nature (IUCN), in some isolated habitats in southern Africa, contraception is of major interest due to local overpopulation. GnRH vaccination has been promoted as a non-invasive contraceptive measure for population management of overabundant wildlife. We tested the efficacy of this treatment for fertility control in elephant bulls. METHODS: In total, 17 male African elephants that were treated with a GnRH vaccine were examined in two groups...
2017: PloS One
https://www.readbyqxmd.com/read/28914423/influences-of-nitrogen-fertilization-and-energy-supplementation-for-growth-perfomance-of-beef-cattle-on-alexander-grass
#20
Tiago Venturini, Luís Fernando Glasenapp de Menezes, Marcelo Marcos Montagner, Wagner Paris, Gean Rodrigo Schmitz, Marcos Luis Molinete
This study evaluated the influences of nitrogen fertilizer and energy supplementation cattle on the growth performance of beef cattle. This study was conducted at the Federal University of Technology of Paraná, Dois Vizinhos through continuous grazing on 6.3 ha, divided into nine paddocks. The treatments were: Alexander grass +100 kg ha(-1) of N (N100); Alexander grass + 100 kg ha(-1) of N + 0.5 kg per 100 kg of weight live supplementation of wheat bran (N100S); and Alexander grass +200 kg ha(-1) of N (N200), with an average herbage allowance of 10% for all treatments...
September 15, 2017: Tropical Animal Health and Production
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