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Přemysl Frič, Jan Škrha, Aleksi Šedo, Tomaš Zima, Petr Bušek, Klára Kmochová, Martin Laclav, Bohuš Bunganič, Svatopluk Solař, Petr Hrabal, František Bělina, Pavel Záruba, Pavel Škrha, Miroslav Zavoral
High-resolution imaging methods (HRIMs) and biomarkers present the second step of pancreatic cancer (PC) diagnostics in at-risk individuals. These include patients with positive risk factors, early symptoms, nonresponders to the initial antidiabetic therapy, patients older than 50 years of age with new-onset unstable diabetes requiring insulin as well as patients with long-term insulin-non-dependent diabetes and recent (up to 6 months) failure of antidiabetic therapy. The procedures should be started without delay and the co-operation between the primary and tertiary medical centers is highly desirable...
December 2016: European Journal of Gastroenterology & Hepatology
Wohn-Jenn Leu, Sharada Prasanna Swain, She-Hung Chan, Jui-Ling Hsu, Shih-Ping Liu, Mei-Ling Chan, Chia-Chun Yu, Lih-Ching Hsu, Yen-Lin Chou, Wei-Ling Chang, Duen-Ren Hou, Jih-Hwa Guh
A series of triazole-based small molecules that mimic FTY720-mediated anticancer activity but minimize its immunosuppressive effect have been produced. SPS-7 is the most effective derivative displaying higher activity than FTY720 in anti-proliferation against human hormone-refractory prostate cancer (HRPC). It induced G1 arrest of cell cycle and subsequent apoptosis in thymidine block-mediated synchronization model. The data were supported by a decrease of cyclin D1 expression, a dramatic increase of p21 expression and an associated decrease in RB phosphorylation...
October 19, 2016: Oncotarget
Si Chen, Xiaoting Wen, Jing Li, Yuan Li, Liubing Li, Xinping Tian, Hui Yuan, Fengchun Zhang, Yongzhe Li
Takayasu arteritis (TA) is a chronic large-vessel vasculitis of unclear pathogenesis. A recent genome-wide association study (GWAS) has revealed that the FCGR2A/FCGR3A, EEFSEC, RPS9/LILRB3, RIPPLY2 and MLX genes confer susceptibility to TA. We investigated the linkage between presumptive TA-related genes (FCGR2A/FCGR3A, EEFSEC, RPS9/LILRB3, RIPPLY2 and MLX) and TA in the Han Chinese population. We performed a large case-control multi-center study of 412 Han Chinese TA patients and 597 ethnically matched healthy controls...
October 18, 2016: Oncotarget
Erika Heninger, Timothy E G Krueger, Stephanie M Thiede, Jamie M Sperger, Brianna L Byers, Madison R Kircher, David Kosoff, Bing Yang, David F Jarrard, Douglas G McNeel, Joshua M Lang
Immune tolerance to self-antigens can limit robust anti-tumor immune responses in the use of tumor vaccines. Expression of novel tumor associated antigens can improve immune recognition and lysis of tumor cells. The cancer-testis antigen (CTA) family of proteins has been hypothesized to be an ideal class of antigens due to tumor-restricted expression, a subset of which have been found to induce antibody responses in patients with prostate disease. We demonstrate that CTA expression is highly inducible in five different Prostate Cancer (PC) cell lines using a hypomethylating agent 5-Aza-2'-deoxycytidine (5AZA) and/or a histone deacetylase inhibitor LBH589...
October 17, 2016: Oncotarget
Shuai Wang, Li-Jie Zhao, Yi-Chao Zheng, Dan-Dan Shen, Er-Fei Miao, Xue-Peng Qiao, Li-Juan Zhao, Ying Liu, Ruilei Huang, Bin Yu, Hong-Min Liu
A new series of [1,2,4]triazolo[1,5-a]pyrimidine-based LSD1 inhibitors were designed, synthesized, and further evaluated for their cytotoxicity against MGC-803, EC109, A549 and PC-9 cells as well as the ability of inhibiting LSD1. Some of these compounds showed potent inhibition toward LSD1 and selectively inhibited growth of A549 and PC-9 cells. Compound 6l potently inhibited growth of PC-9 cells (IC50 = 0.59 μM), about 4-fold more potent than 5-FU. Further SARs studies led to the identification of compounds 6l-m, which had good growth inhibition against all the tested cancer cell lines and were much more potent than 5-FU and GSK2879552...
October 14, 2016: European Journal of Medicinal Chemistry
Lanfang Tian, Siyuan Chen, Haiyan Liu, Mingzhang Guo, Wentao Xu, Xiaoyun He, Yunbo Luo, Xiaozhe Qi, Hongxia Luo, Kunlun Huang
Hepcidin, one kind of antimicrobial peptides, is one of the promising alternatives to antibiotics with broad spectrum of antimicrobial activity. Hepcidins cloned from different kinds of fishes have been produced using exogenous expression systems, and their in vitro antimicrobial effects have been verified. However their in vivo effects on gut microbiota and gut health of hosts remain unclear. Here we performed a safety study of hepcidin so that it can be used to reduce microbial contaminations in the food and feed...
2016: PloS One
Pravas Deria, Diego A Gómez-Gualdrón, Idan Hod, Randall Q Snurr, Joseph T Hupp, Omar K Farha
Catalytic activity for acyl transfer from N-acetylimidazole (NAI) to different pyridylcarbinol (PC) regioisomers (2-PC, 3-PC, and 4-PC) is demonstrated for a set of topologically diverse, zirconium-based (porphinato)zinc metal-organic frameworks (MOFs). The MOFs studied are PCN-222, MOF-525, and NU-902, which are based on the csq, ftw, and scu topologies, respectively. The experimentally obtained reaction kinetics are discussed in light of molecular modeling results. The catalytic activity is shown to vary across the series of MOFs due to the different extent to which each topology facilitates reactant preconcentration and alignment of PC and NAI via coordination to framework porphyrin sites (orientation effects)...
October 21, 2016: Journal of the American Chemical Society
Stefano Salciccia, Alessandro Gentilucci, Susanna Cattarino, Alessandro Sciarra
On the basis of the trials available, are we ready to consider GnRH antagonists better than agonists? Is there a population of patients who may benefit from antagonists more than agonists?We specifically focused our analysis on the significance of oncological results obtained in phase III trials directly comparing Degarelix with GnRH agonists. Oncological results were evaluated only in 1 trial (CS21) with some subanalysis and they were not the primary endpoints of the study. The follow-up duration was 364 days, and therefore, the number of events (all causes deaths and prostate cancer (PC), Prostate Specific Antigen (PSA), Hazard ratio (HR)-related deaths) was very low in both groups and this aspect strongly reduces the significance of overall survival evaluation...
October 15, 2016: Urologia
David Maidment, William Brassington, Heather Wharrad, Melanie Ferguson
Purpose: The purpose of the study was to assess whether Internet competency predicted practical hearing aid knowledge and handling skills in first-time hearing aid users. Method: The design was a prospective, randomized controlled trial of a multimedia educational intervention consisting of interactive video tutorials (or reusable learning objects [RLOs]). RLOs were delivered through DVD for TV or PC, and online. Internet competency was measured at the hearing aid fitting appointment, whereas hearing aid knowledge and practical handling skills were assessed 6 weeks postfitting...
October 1, 2016: American Journal of Audiology
Robert H Eikelboom, De Wet Swanepoel
Purpose: A better understanding of the attitudes of audiologists toward teleaudiology and their willingness to use teleaudiology is required to progress the application of teleaudiology technologies and services into clinical practice. Audiologists around the world were surveyed on their attitudes toward teleaudiology and their willingness to use it. Method: An online survey was sent to audiologists through professional associations' mailing lists. The survey included questions on the use of computer and video-conferencing technologies, awareness and previous use of teleaudiology, and willingness to use teleaudiology...
October 1, 2016: American Journal of Audiology
Mangesh I Chaudhari, Jijeesh R Nair, Lawrence R Pratt, Fernando A Soto, Perla B Balbuena, Susan Rempe
Lithium ion solvation and diffusion properties in ethylene carbonate (EC) and propylene carbonate (PC) are studied by molecular simulation, experiments, and electronic structure calculations. Studies carried out in water provide a reference for interpretation. Classical molecular dynamics simulation results are compared to ab initio molecular dynamics to as- sess non-polarizable force field parameters for solvation structure of the carbonate solvents. Quasi-chemical theory (QCT) is adapted to take advantage of four-fold occupancy of the near-neighbor solvation structure observed in simulations, and used to calculate solvation free energies...
October 21, 2016: Journal of Chemical Theory and Computation
Makoto Ikejiri, Hideo Wada, Norikazu Yamada, Maki Nakamura, Naoki Fujimoto, Kaname Nakatani, Akimasa Matsuda, Yosihito Ogihara, Takeshi Matsumoto, Yuki Kamimoto, Tomoaki Ikeda, Naoyuki Katayama, Masaaki Ito
Congenital thrombophilia which is characterized by deficiencies in proteins such as antithrombin (AT), protein C (PC) and protein S (PS), is a major cause of venous thromboembolism (VTE). A total of 130 patients with VTE were evaluated for congenital thrombophilia based on the activity of AT, PC, or PS. Fifteen VTE patients with congenital AT deficiency (11.5 %), 16 with congenital PC deficiency (12.3 %) and eight with congenital PS deficiency (6.2 %) were diagnosed using DNA analysis. The frequency of congenital AT deficiency was significantly higher in subjects with pregnancy-related and idiopathic VTE than in those with VTE due to other causes, and congenital PC and PS deficiency were frequently associated with idiopathic VTE...
October 20, 2016: International Journal of Hematology
Tiziana Cavalli, Francesco Giudici, Gabriella Nesi, Andrea Amorosi, Raffaella Santi, Maria Luisa Brandi, Francesco Tonelli
Approximately 300 cases of sporadic parathyroid cyst (PCs) have been reported to date. Only two cases have been described in MEN1 so far. Detection by imaging could be challenging, especially in multiglandular primary hyperparathyroidism (HPT) and clinical outcome could be different. During the period 1990-2014, 71 MEN1 patients were operated for primary hyperparathyroidism in our centre. We report three cases of PCs in MEN1 patients affected by HPT, who underwent a total or subtotal parathyroidectomy with transcervical thymectomy...
October 20, 2016: Familial Cancer
Na Han, You Jeong Kim, Su Min Park, Seung Man Kim, Ji Suk Lee, Hye Sook Jung, Eun Ju Lee, Tae Kyoon Kim, Tae Nyun Kim, Min Jeong Kwon, Soon Hee Lee, Mi-Kyung Kim, Byoung Doo Rhee, Jeong Hyun Park
BACKGROUND: Cognitive impairment and brain damage in diabetes is suggested to be associated with hypoglycemia. The mechanisms of hypoglycemia-induced neural death and apoptosis are not clear and reperfusion injury may be involved. Recent studies show that glucose deprivation/reperfusion induced more neuronal cell death than glucose deprivation itself. The forkhead box O (FOXO) transcription factors are implicated in the regulation of cell apoptosis and survival, but their role in neuronal cells remains unclear...
October 2016: Diabetes & Metabolism Journal
Toshiyuki Miyata, Keiko Maruyama, Fumiaki Banno, Reiko Neki
In recent years, genetic analyses of congenital deficiencies of three anticoagulant proteins, antithrombin, protein C (PC) and protein S (PS), in East Asian patients with venous thromboembolism (VTE) have greatly increased. The PS-K196E mutation is often identified in the Japanese population with an allelic frequency of 0.86 %, and a total of approximately 10,000 Japanese are estimated to be homozygotes. The heterozygotes show PS anticoagulant activities ranging from 40 to 110 %, and 16 % lower mean anticoagulant activity than that in wild-type individuals...
2016: Thrombosis Journal
Laleh Majari Kasmaee, Asghar Aryanfar, Zarui Chikneyan, Michael R Hoffmann, Agustín J Colussi
Understanding the mechanism of formation of solid-electrolyte interphases (SEI) is key to the prospects of lithium metal batteries (LMB). Here, we investigate via cyclic voltammetry, impedance spectroscopy and chronoamperometry the role of kinetics in controlling the properties of the SEI generated from the reduction of propylene carbonate (PC, a typical solvent in LMB). Our observations are consistent with the operation of a radical chain PC electropolymerization into polymer units whose complexity increases at lower initiation rates...
September 16, 2016: Chemical Physics Letters
Eiman Mukhtar, Vaqar M Adhami, Imtiaz A Siddiqui, Ajit K Verma, Hasan Mukhtar
Although treatment of prostate cancer (PCa) has improved over the past several years, taxanes such as cabazitaxel remain the only form of effective chemotherapy that improves survival in patients with metastatic castration-resistant PCa. However, the effectiveness of this class of drugs has been associated with various side effects and drug resistance. We previously reported that fisetin, a hydroxyflavone, is a microtubule stabilizing agent and inhibits PCa cell proliferation, migration, and invasion and suggested its use as an adjuvant for treatment of prostate and other cancer types...
October 7, 2016: Molecular Cancer Therapeutics
Juan Manuel Bello-López, Facundo Hernández-Rodríguez, Julieta Rojo-Medina
INTRODUCTION: γ-radiation is a method that was originally designed for inactivation of T lymphocytes in blood and blood components in order to prevent transfusion associated-graft versus host disease (TA-GVHD). Klebsiella pneumoniae, Escherichia coli, Enterococcus faecium and Staphylococcus epidermidis strains are important pathogens in blood banks since they have been related to post-transfusional sepsis. This study was conducted to demonstrate that γ-radiation is effective in reducing the viability of bacteria in platelet concentrates (PC)...
September 29, 2016: Transfusion and Apheresis Science
Aurélie Moskal, Heinz Freisling, Graham Byrnes, Nada Assi, Michael T Fahey, Mazda Jenab, Pietro Ferrari, Anne Tjønneland, Kristina En Petersen, Christina C Dahm, Camilla Plambeck Hansen, Aurélie Affret, Marie-Christine Boutron-Ruault, Claire Cadeau, Tilman Kühn, Verena Katzke, Khalid Iqbal, Heiner Boeing, Antonia Trichopoulou, Christina Bamia, Androniki Naska, Giovanna Masala, Maria Santucci de Magistris, Sabina Sieri, Rosario Tumino, Carlotta Sacerdote, Petra H Peeters, Bas H Bueno-de-Mesquita, Dagrun Engeset, Idlir Licaj, Guri Skeie, Eva Ardanaz, Genevieve Buckland, José M Huerta Castaño, José R Quirós, Pilar Amiano, Elena Molina-Portillo, Anna Winkvist, Robin Myte, Ulrika Ericson, Emily Sonestedt, Aurora Perez-Cornago, Nick Wareham, Kay-Tee Khaw, Inge Huybrechts, Konstantinos K Tsilidis, Heather Ward, Marc J Gunter, Nadia Slimani
BACKGROUND: Much of the current literature on diet-colorectal cancer (CRC) associations focused on studies of single foods/nutrients, whereas less is known about nutrient patterns. We investigated the association between major nutrient patterns and CRC risk in participants of the European Prospective Investigation into Cancer and Nutrition (EPIC) study. METHODS: Among 477 312 participants, intakes of 23 nutrients were estimated from validated dietary questionnaires...
October 20, 2016: British Journal of Cancer
Lori E Lowes, David Goodale, Ying Xia, Carl Postenka, Matthew M Piaseczny, Freeman Paczkowski, Alison L Allan
Metastasis is the cause of most prostate cancer (PCa) deaths and has been associated with circulating tumor cells (CTCs). The presence of ≥5 CTCs/7.5mL of blood is a poor prognosis indicator in metastatic PCa when assessed by the CellSearch® system, the "gold standard" clinical platform. However, ~35% of metastatic PCa patients assessed by CellSearch® have undetectable CTCs. We hypothesize that this is due to epithelial-to-mesenchymal transition (EMT) and subsequent loss of necessary CTC detection markers, with important implications for PCa metastasis...
October 15, 2016: Oncotarget
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