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I Porreca, L Ulloa-Severino, P Almeida, D Cuomo, A Nardone, G Falco, M Mallardo, C Ambrosino
Several studies associate foetal human exposure to bisphenol A (BPA) to metabolic/endocrine diseases, mainly diabesity. They describe the role of BPA in the disruption of pancreatic beta cell, adipocyte and hepatocyte functions. Indeed, the complexity of the diabesity phenotype is due to the involvement of different endoderm-derived organs, all targets of BPA. Here, we analyse this point delineating a picture of different mechanisms of BPA toxicity in endoderm-derived organs leading to diabesity. Moving from epidemiological data, we summarize the in vivo experimental data of the BPA effects on endoderm-derived organs (thyroid, pancreas, liver, gut, prostate and lung) after prenatal exposure...
October 24, 2016: Obesity Reviews: An Official Journal of the International Association for the Study of Obesity
Anais Fradet, Mathilde Bouchet, Carine Delliaux, Manon Gervais, Casina Kan, Claire Benetollo, Francesco Pantano, Geoffrey Vargas, Lamia Bouazza, Martine Croset, Yohann Bala, Xavier Leroy, Thomas J Rosol, Jennifer Rieusset, Akeila Bellahcène, Vincent Castronovo, Jane E Aubin, Philippe Clézardin, Martine Duterque-Coquillaud, Edith Bonnelye
Bone metastases are one of the main complications of prostate cancer and they are incurable. We investigated whether and how estrogen receptor-related receptor alpha (ERRα) is involved in bone tumor progression associated with advanced prostate cancer. By meta-analysis, we first found that ERRα expression is correlated with castration-resistant prostate cancer (CRPC), the hallmark of progressive disease. We then analyzed tumor cell progression and the associated signaling pathways in gain-of-function/loss-of-function CRPC models in vivo and in vitro...
October 20, 2016: Oncotarget
Ofer Nathan Gofrit, Stephen Frank, Amichay Meirovitz, Hovav Nechushtan, Marina Orevi
AIM: Castrate-resistant prostate cancer (CRPC) often shows histological evidence of neuroendocrine differentiation (NED). To evaluate the extent of NED in patients with CRPC, we used PET/CT with Ga-[DOTA-Tyr]-octreotate (Ga-DOTA-TATE), a somatostatin analog that binds somatostatin receptor 2 with high affinity. This radiotracer is used in imaging of neuroendocrine tumors. METHODS: Twelve patients (mean age, 65 [SD, 12] years) with CRPC were studied. Their mean prostate-specific antigen level at scanning was 85...
October 21, 2016: Clinical Nuclear Medicine
Alexis Hugentobler, Laurent Gilbeau, Jean-Noel Talbot, Mathieu Gauthé
Breast cancer is approximately 100 times less common among men. Estrogen-related receptor α was detected in human prostate cancer tissue, and androgen receptors are expressed in both normal and malignant breast tissue. Thus, prostate cancer hormonal therapy may increase breast cancer risk. A 67-year-old man with prostate cancer history presented with rising prostate-specific antigen level. F-Fluorocholine PET/CT showed intense uptake in his right breast and moderate uptake in right axillary lymph node. Complementary F-FDG PET/CT demonstrated more intense tracer uptakes in both the right breast and axillary lymph node...
October 21, 2016: Clinical Nuclear Medicine
Julia Reinfelder, Torsten Kuwert, Michael Beck, James C Sanders, Philipp Ritt, Christian Schmidkonz, Peter Hennig, Olaf Prante, Michael Uder, Bernd Wullich, Peter Goebell
AIM: Prostate-specific membrane antigen (PSMA) is overexpressed in most prostate cancers (PCs). Here, we report our first experience using the Tc-labeled PSMA inhibitor MIP-1404 (Progenics Pharmaceuticals, Inc, Tarrytown, NY) in 60 patients with biochemically recurrent PC. METHODS: Whole-body planar scintigraphy and SPECT/CT of the lower abdominal pelvic region of 60 patients with biochemical relapse of PC were analyzed retrospectively. In these subjects, an average dose of 733...
October 21, 2016: Clinical Nuclear Medicine
Hyunjin Kim, Sang-Min Choi, Sanghyun Park
When a gene shows varying levels of expression among normal people but similar levels in disease patients or shows similar levels of expression among normal people but different levels in disease patients, we can assume that the gene is associated with the disease. By utilizing this gene expression heterogeneity, we can obtain additional information that abets discovery of disease-associated genes. In this study, we used collaborative filtering to calculate the degree of gene expression heterogeneity between classes and then scored the genes on the basis of the degree of gene expression heterogeneity to find "differentially predicted" genes...
October 19, 2016: IEEE/ACM Transactions on Computational Biology and Bioinformatics
Paolo Capogrosso, Eugenio Ventimiglia, Marco Moschini, Luca Boeri, Elena Farina, Nadia Finocchio, Giorgio Gandaglia, Nicola Fossati, Alberto Briganti, Franscesco Montorsi, Andrea Salonia
BACKGROUND: Controversial results have shown a significant association with either low or high total testosterone (tT) levels and high risk prostate cancer (PCa). We tested the relationship between circulating tT and grade group 5 (G5) PCa at radical prostatectomy (RP) in patients with preoperative low- to intermediate-risk disease. METHODS: Serum sex hormones were assessed the day before RP in a cohort of 846 patients with low- to intermediate-risk PCa. Patients were segregated using the new 5-tiered Gleason grade groups...
October 24, 2016: Prostate
Abra Jeffers, Vanessa Sochat, Michael W Kattan, Changhong Yu, Erin Melcon, Kosi Yamoah, Timothy R Rebbeck, Alice S Whittemore
BACKGROUND: Prostate cancer prognosis is variable, and management decisions involve balancing patients' risks of recurrence and recurrence-free death. Moreover, the roles of body mass index (BMI) and race in risk of recurrence are controversial [1,2]. To address these issues, we developed and cross-validated RAPS (Risks After Prostate Surgery), a personal prediction model for biochemical recurrence (BCR) within 10 years of radical prostatectomy (RP) that includes BMI and race as possible predictors, and recurrence-free death as a competing risk...
October 24, 2016: Prostate
Takashi Dejima, Kenjiro Imada, Ario Takeuchi, Masaki Shiota, Jeffrey Leong, Tabitha Tombe, Kevin Tam, Ladan Fazli, Seiji Naito, Martin E Gleave, Christopher J Ong
BACKGROUND: LIM and SH3 domain protein 1 (LASP1) has been implicated in several human malignancies and has been shown to predict PSA recurrence in prostate cancer. However, the anti-tumor effect of LASP1 knockdown and the association between LASP1 and the androgen receptor (AR) remains unclear. The aim of this study is to clarify the significance of LASP1 as a target for prostate cancer, and to test the effect of silencing LASP1 in vivo using antisense oligonucleotides (ASO). METHODS: A tissue microarray (TMA) was performed to characterize the differences in LASP1 expression in prostate cancer treated after hormone deprivation therapy...
October 24, 2016: Prostate
Jason Gandhi, Gautam Dagur, Kelly Warren, Noel Smith, Sardar Ali Khan
BACKGROUND: Diabetes mellitus is a vastly prevalent metabolic disorder with escalating global health concerns. Particularly when mismanaged, chronic micro- and macrovascular complications may highly impair physiological systems while immunodeficiency disposes us to infection. OBJECTIVE: We investigate infections, localized complications, and neoplasms of the genitourinary system secondary to the chronic complications of diabetes mellitus in males and females. METHOD: A comprehensive MEDLINE® search was guided using key words relevant to diabetes mellitus and the genitourinary system...
October 19, 2016: Current Diabetes Reviews
Phillip Ertel, Burkay Adalig, Ipek Demircan, Belinda Lartey, Michael J Manyak
AIM: To assess attitudes and beliefs towards benign prostatic hyperplasia (BPH)/ lower urinary tract symptoms (LUTS) and its treatment among patients and physicians in Latin America, Asia Pacific and the Commonwealth of Independent States (CIS). METHODS: Cross-sectional, quantitative study conducted between December 2014 and September 2015. Separate questionnaires were administered to BPH/LUTS patients receiving drug treatment for their condition and to practising physicians who treat patients with BPH/LUTS...
October 2016: International Journal of Clinical Practice
Sara Maleki, Antonio Cajigas, Jason Moss, K H Ramesh, Samer Khader
We describe a case of synovial sarcoma originating from prostate gland. The diagnosis was confirmed by fluorescent in situ hybridization analysis (FISH) for SYT rearrangement on the cell block. Synovial sarcoma is a high grade soft tissue malignancy with exceedingly rare involvement of genitourinary tract. However this entity should be considered in the differential diagnosis when dealing with aspiration biopsies of particularly deep seated lesions with spindle cell or small round blue cell cytomorphology. Diagn...
October 24, 2016: Diagnostic Cytopathology
A P Kassianos, M M Raats, H Gage
This article aims to investigate associations between perceived control and health-related quality of life (HRQOL) with dietary changes after prostate cancer diagnosis and to explore General Practitioners' (GPs) perceptions on the role of diet in prostate cancer post-diagnosis. Ninety-five prostate cancer patients completed measures of dietary change, one for after diagnosis and another for after therapy. They also scored their HRQOL and perceived control. There were discrepancies in dietary changes reported between a general question (28...
October 24, 2016: European Journal of Cancer Care
R B Flores, Dsr Angrimani, B R Rui, M M Brito, R A Abreu, C I Vannucchi
Benign prostatic hyperplasia (BPH) has a high incidence in older intact dogs. Due to the increased prostatic oxidative stress and hormonal imbalance of BPH, sperm damage can arise, such as sperm morphological alterations and DNA fragmentation. This study aimed to compare the reproductive potential of healthy dogs and those affected by benign prostatic hyperplasia. Ten dogs were assigned to two experimental groups: dogs without BPH (control; n = 5) and dogs diagnosed with BPH (n = 5), based on clinical signs and ultrasonographic findings...
October 24, 2016: Reproduction in Domestic Animals, Zuchthygiene
Elie A Saade, Nuntra Suwantarat, Trina F Zabarsky, Brigid Wilson, Curtis J Donskey
BACKGROUND: Recent reports suggest that infections due to fluoroquinolone-resistant Escherichia coli (E. coli) are an increasingly common complication of transrectal biopsy of the prostate (TBP) in the United States. A better understanding of the magnitude and scope of these infections is needed to guide prevention efforts. Our objective is to determine whether the incidence of infections due to fluoroquinolone-resistant E. coli after TBP has increased nationwide in the Veterans Affairs Health Care System and to identify risk factors for infection...
2016: Pathogens & Immunity
Nghi C Nguyen, Muhammad Shah, Leonard J Appleman, Rahul Parikh, James M Mountz
Background and Purpose. Radium-223 dichloride (Xofigo®, Bayer HealthCare Pharmaceuticals Inc.) is the first α-particle emitter therapeutic agent approved by the FDA, with benefits in overall survival and delay in symptomatic skeletal event for patients with metastatic castrate-resistant prostate cancer (CRPC). Recent post hoc analyses of the phase III ALSYMPCA trial support the previously established safety profile as well as therapeutic effect and clinical outcome of Radium-223. Currently, Radium-223 is approved as a single agent therapy for metastatic CRPC...
2016: International Journal of Molecular Imaging
Masahiko Terakado, Hidehiro Suzuki, Kazuya Hashimura, Motoyuki Tanaka, Hideyuki Ueda, Hiroshi Kohno, Taku Fujimoto, Hiroshi Saga, Shinji Nakade, Hiromu Habashita, Yoshikazu Takaoka, Takuya Seko
Lysophosphatidic acid (LPA) evokes various physiological responses through a series of G protein-coupled receptors known as LPA1-6. A high throughput screen against LPA1 gave compound 7a as a hit. The subsequent optimization of 7a led to ONO-7300243 (17a) as a novel, potent LPA1 antagonist, which showed good efficacy in vivo. The oral dosing of 17a at 30 mg/kg led to reduced intraurethral pressure in rats. Notably, this compound was equal in potency to the α1 adrenoceptor antagonist tamsulosin, which is used in clinical practice to treat dysuria with benign prostatic hyperplasia (BPH)...
October 13, 2016: ACS Medicinal Chemistry Letters
Jorge L Gutierrez-Pajares, Céline Ben Hassen, Stéphan Chevalier, Philippe G Frank
Studies have demonstrated the significant role of cholesterol and lipoprotein metabolism in the progression of cancer. The SCARB1 gene encodes the scavenger receptor class B type I (SR-BI), which is an 82-kDa glycoprotein with two transmembrane domains separated by a large extracellular loop. SR-BI plays an important role in the regulation of cholesterol exchange between cells and high-density lipoproteins. Accordingly, hepatic SR-BI has been shown to play an essential role in the regulation of the reverse cholesterol transport pathway, which promotes the removal and excretion of excess body cholesterol...
2016: Frontiers in Pharmacology
Vipin Lohiya, Jeanny B Aragon-Ching, Guru Sonpavde
Chemotherapy using the taxanes, docetaxel and cabazitaxel, remains an important therapeutic option in metastatic castration-resistant prostate cancer (CRPC). However, despite the survival benefits afforded by these agents, the survival increments are modest and resistance occurs universally. Efforts to overcome resistance to docetaxel by combining with biologic agents have heretofore been unsuccessful. Indeed, resistance to these taxanes is also associated with cross-resistance to the antiandrogen drugs, abiraterone and enzalutamide...
2016: Clinical Medicine Insights. Oncology
Veronica Vella, Roberta Malaguarnera, Rosamaria Lappano, Marcello Maggiolini, Antonino Belfiore
Prostate cancer is the most common cancer in men in many industrialized countries. A role for androgens in prostate tumor progression is well recognized, while estrogens may cooperate with androgens in prostate carcinogenesis. The incidence of prostate cancer is highly variable in the different countries, suggesting an important role of environmental factors. Heavy metals are common environmental contaminants and some of them are confirmed or suspected human carcinogens. Some metals are endowed with estrogenic and/or androgenic activities and may play a role as cancer risk factors through this mechanism...
October 20, 2016: Molecular and Cellular Endocrinology
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