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https://www.readbyqxmd.com/read/27932945/monoaminergic-and-histaminergic-strategies-and-treatments-in-brain-diseases
#1
REVIEW
Giuseppe Di Giovanni, Dubravka Svob Strac, Montse Sole, Mercedes Unzeta, Keith F Tipton, Dorotea Mück-Šeler, Irene Bolea, Laura Della Corte, Matea Nikolac Perkovic, Nela Pivac, Ilse J Smolders, Anna Stasiak, Wieslawa A Fogel, Philippe De Deurwaerdère
The monoaminergic systems are the target of several drugs for the treatment of mood, motor and cognitive disorders as well as neurological conditions. In most cases, advances have occurred through serendipity, except for Parkinson's disease where the pathophysiology led almost immediately to the introduction of dopamine restoring agents. Extensive neuropharmacological studies first showed that the primary target of antipsychotics, antidepressants, and anxiolytic drugs were specific components of the monoaminergic systems...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27932047/disturbances-of-glucose-metabolism-associated-with-the-use-of-psychotropic-drugs-a-post-mortem-evaluation
#2
Cristian Palmiere, Marc Augsburger, Vincent Varlet
Treatment with atypical antipsychotic agents and tetracyclic antidepressants has been associated with impaired glycemic control. Reported complications have included new-onset diabetes mellitus, life-threatening diabetic ketoacidosis and, rarely, death. The study presented herein focuses on biochemical investigations of glucose metabolism in a series of medico-legal cases that revealed the presence of atypical antipsychotic agents (clozapine, olanzapine, quetiapine and risperidone) or mirtazapine at toxicology...
December 5, 2016: Forensic Science International
https://www.readbyqxmd.com/read/27931337/drug-related-hepatitis-in-patients-treated-with-standard-anti-tuberculosis-chemotherapy-over-a-30-year-period
#3
R J Bright-Thomas, A R Gondker, J Morris, L P Ormerod
SETTING: Drug-induced hepatitis is known to occur in a proportion of patients on treatment for active tuberculosis (TB). DESIGN: We prospectively examined the incidence of drug-induced hepatitis in 2070 patients treated for TB with the standard regimen based on 6 months of rifampicin (R, RMP) and isoniazid (H, INH), with 2 months of initial pyrazinamide (Z, PZA) and ethambutol (E, EMB), over a 30-year period from 1981 to 2010, in Blackburn, UK. RESULTS: Of the 1031 (49...
December 2016: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/27930976/nephro-protective-effect-of-a-novel-formulation-of-unopened-coconut-inflorescence-sap-powder-on-gentamicin-induced-renal-damage-by-modulating-oxidative-stress-and-inflammatory-markers
#4
Svenia P Jose, Asha S, Krishnakumar Im, Ratheesh M, Savitha Santhosh, Sandya S, Girish Kumar B, Pramod C
Fresh oyster white translucent sap obtained from the tender unopened inflorescence of coconut trees (Cocos nucifera) is identified to have great health benefits. Drug induced Nephrotoxicity is one of the major causes of renal damage in present generation. As a therapeutic agent, gentamicin imparts direct toxicity to kidney, resulting in acute tubular necrosis, glomerular and tubulointerstitial injury, haemodynamically mediated damage and obstructive nephropathy.There exists an increasing demand for safe and natural agents for the treatment and/or preventionofchronic nephrotoxicity and pathogenesis of kidney diseases...
December 5, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/27928109/na-ca-2-exchanger-contributes-to-stool-transport-in-mice-with-experimental-diarrhea
#5
Kazuhiro Nishiyama, Kohta Tanioka, Yasu-Taka Azuma, Satomi Hayashi, Yasuyuki Fujimoto, Natsuho Yoshida, Satomi Kita, Sho Suzuki, Hidemitsu Nakajima, Takahiro Iwamoto, Tadayoshi Takeuchi
The Na(+)/Ca(2+) exchanger (NCX) is a bidirectional transporter that is controlled by membrane potential and transmembrane gradients of Na(+) and Ca(2+). To reveal the functional role of NCX on gastrointestinal motility, we have previously used NCX1 and NCX2 heterozygote knockout mice (HET). We found that NCX1 and NCX2 play important roles in the motility of the gastric fundus, ileum and distal colon. Therefore, we believed that NCX1 and NCX2 play an important role in transport of intestinal contents. Here, we investigated the role of NCX in a mouse model of drug-induced diarrhea...
December 8, 2016: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/27928077/prevention-of-early-mortality-by-presumptive-tuberculosis-therapy-study-an-open-label-randomized-controlled-trial
#6
Yukari C Manabe, William Worodria, Frank van Leth, Harriet Mayanja-Kizza, Afsatou Ndama Traore, Josefo Ferro, Nadine Pakker, Matthias Frank, Martin P Grobusch, Robert Colebunders, Frank Cobelens
Early mortality after initiation of antiretroviral therapy (ART) occurs in 9-39% of patients in sub-Saharan Africa. A significant proportion of deaths are attributable to tuberculosis (TB). Low baseline CD4 T-cell count and low body mass index (BMI) are strongly associated with early mortality. We hypothesized that initiation of ART concurrent with presumptive anti-TB chemotherapy in high-risk patients would reduce mortality within the first 6 months by treating unrecognized TB. From October 2011 to December 2012, ART-naive, smear-negative participants with a CD4 T-cell count < 50 cells/μL and BMI < 18 kg/m(2) were randomly assigned to undergo either empiric four-drug anti-TB treatment followed 2 weeks later by efavirenz-based ART (N = 23) (ART + TB) or ART only (N = 20)...
December 7, 2016: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27926520/inhibiting-the-mnk-eif4e-%C3%AE-catenin-axis-increases-the-responsiveness-of-aggressive-breast-cancer-cells-to-chemotherapy
#7
Zhiqiang Li, Yang Sun, Miao Qu, Hongxing Wan, Fang Cai, Peng Zhang
Advanced breast cancer (eg. stage IV) is resistant to chemotherapy. In this work, we identified potentially druggable targets that are critically involved in chemoresistance. We showed that eIF4E is highly phosphorylated at serine 209 in breast cancer patients in response to chemotherapy, which significantly correlated with poorer clinical responses and outcomes. Depletion of eIF4E enhanced the anti-proliferative and pro-apoptotic effects of chemotherapeutic drugs in breast cancer cells. Chemotherapy activated the Wnt/β-catenin signaling in an eIF4E-dependent manner...
December 2, 2016: Oncotarget
https://www.readbyqxmd.com/read/27924981/hts-ftir-spectroscopy-allows-the-classification-of-polyphenols-according-to-their-differential-effects-on-the-mda-mb-231-breast-cancer-cell-line
#8
A Mignolet, V Mathieu, E Goormaghtigh
Breast cancer is a major public health issue among women in the world. Meanwhile new anticancer treatments struggle more and more to be accepted in the pharmaceutical market and research costs still increase. There is therefore a need to find new treatments and new screening methods to test them more quickly and efficiently. Among natural compounds, an increasing interest has been given to polyphenols as they can take action at the different stages of carcinogenesis, from tumour initiation to metastasis formation, by disturbing multiple cellular signalling pathways...
December 7, 2016: Analyst
https://www.readbyqxmd.com/read/27923051/electrophysiological-characteristics-of-human-ipsc-derived-cardiomyocytes-for-the-assessment-of-drug-induced-proarrhythmic-potential
#9
Wataru Yamamoto, Keiichi Asakura, Hiroyuki Ando, Tomohiko Taniguchi, Atsuko Ojima, Takaaki Uda, Tomoharu Osada, Seiji Hayashi, Chieko Kasai, Norimasa Miyamoto, Hiroyuki Tashibu, Takashi Yoshinaga, Daiju Yamazaki, Atsushi Sugiyama, Yasunari Kanda, Kohei Sawada, Yuko Sekino
The aims of this study were to (1) characterize basic electrophysiological elements of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) that correspond to clinical properties such as QT-RR relationship, (2) determine the applicability of QT correction and analysis methods, and (3) determine if and how these in-vitro parameters could be used in risk assessment for adverse drug-induced effects such as Torsades de pointes (TdP). Field potential recordings were obtained from commercially available hiPSC-CMs using multi-electrode array (MEA) platform with and without ion channel antagonists in the recording solution...
2016: PloS One
https://www.readbyqxmd.com/read/27922762/nonchemotherapy-drug-induced-agranulocytosis-in-children-detected-by-a-prospective-pharmacovigilance-program
#10
Nicolás Medrano-Casique, Hoi Y Tong, Alberto M Borobia, Antonio J Carcas, Jesús Frías, Elena Ramírez
OBJECTIVES: A prospective evaluation of nonchemotherapy drug-induced agranulocytosis (DIA) cases, which are infrequent in the pediatric population. We characterize agranulocytosis cases and assess lab test differences between drug- and nondrug-induced agranulocytosis. METHODS: Through our Prospective Pharmacovigilance Program from Laboratory Signals at Hospital we detected pediatric agranulocytosis cases from July 2007 to December 2010. This program estimates the incidence, drug causality, clinical features, outcomes of DIA pediatric cases, and assesses laboratory differences with respect to non-DIA...
December 6, 2016: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/27922194/pharmacodynamic-response-profiles-of-anxiolytic-and-sedative-drugs
#11
Xia Chen, Freerk Broeyer, Marieke de Kam, Joke Baas, Adam Cohen, Joop van Gerven
INTRODUCTION: Centrally-acting acutely anxiolytic drugs, like benzodiazepines, barbiturates and gabapentinoids, affect various central nervous system (CNS) functions, which reflect not only their anxiolytic effects but also neuropsychological side-effects. To validate the pharmacodynamic biomarkers for GABA-ergic anxiolytics, this study determined the pharmacodynamics of two anxiolytics and a non-anxiolytic control and linked them to their anxiolytic and sedative effects, during an anxiety-challenge study day...
December 6, 2016: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27920831/assessment-of-drug-induced-proarrhythmias-due-to-pilsicainide-in-patients-with-atrial-tachyarrhythmias
#12
Hideki Koike, Tadashi Fujino, Makiko Koike, Shintaro Yao, Masaya Shinohara, Ken Kitahara, Toshio Kinoshita, Hitomi Yuzawa, Takeya Suzuki, Hideyuki Sato, Shunji Fukunaga, Kenzaburo Kobayashi, Takanori Ikeda
BACKGROUND: Pilsicainide, a pure Na(+) channel blocker, is a popular antiarrhythmic drug for the management of atrial tachyarrhythmias (AT), in Japan. However, serious drug-induced proarrhythmias (DIPs) may unexpectedly occur. We assessed the clinical background of AT patients presenting with DIPs caused by pilsicainide. METHODS: This study retrospectively enrolled 874 consecutive patients (543 men, 63.6±15.3 years old, and 57.9±16.5 kg of body weight), who were orally administered pilsicainide for AT management...
December 2016: Journal of Arrhythmia
https://www.readbyqxmd.com/read/27920722/a-new-structure-activity-relationship-sar-model-for-predicting-drug-induced-liver-injury-based-on-statistical-and-expert-based-structural-alerts
#13
Fabiola Pizzo, Anna Lombardo, Alberto Manganaro, Emilio Benfenati
The prompt identification of chemical molecules with potential effects on liver may help in drug discovery and in raising the levels of protection for human health. Besides in vitro approaches, computational methods in toxicology are drawing attention. We built a structure-activity relationship (SAR) model for evaluating hepatotoxicity. After compiling a data set of 950 compounds using data from the literature, we randomly split it into training (80%) and test sets (20%). We also compiled an external validation set (101 compounds) for evaluating the performance of the model...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27919179/an-analysis-of-the-role-of-follicular-lymphoma-associated-fibroblasts-to-promote-tumor-cell-viability-following-drug-induced-apoptosis
#14
Annette M Staiger, Jasmin Duppel, Michael A Dengler, Heiko van der Kuip, Matthias C Vöhringer, Walter E Aulitzky, Andreas Rosenwald, German Ott, Heike Horn
Treatment response of follicular lymphomas (FL) is highly variable. We, therefore, investigated the role of FL cancer-associated fibroblasts (CAFs) on tumor cell viability, in particular in response to treatment with cytotoxic drugs. Stromal cells outgrown from FL patients were characterized and pure CAF populations were co-cultivated with FL cells. To analyze fibroblast-mediated effects, cells in co-culture were treated with ABT-737 and Bortezomib. The adherent cell population was positive for all fibroblastic markers tested and showed increased mRNA-expression of the activation marker FAP...
December 6, 2016: Leukemia & Lymphoma
https://www.readbyqxmd.com/read/27918356/refractory-tamoxifen-induced-keratopathy-despite-drug-withdrawal
#15
Konstantinos Andreanos, Konstantinos Oikonomakis, Konstantinos Droutsas, Myrsini Petreli, George Kymionis
PURPOSE: To report a case with refractory tamoxifen-induced keratopathy despite drug withdrawal. METHODS: Case report. RESULTS: A 50-year-old woman, diagnosed with bilateral breast cancer underwent mastectomy in 2005. She was treated with tamoxifen citrate from 2005 to 2012. According to her medical history, no corneal abnormalities had been documented during past ophthalmological examinations except low myopia, before initiation of tamoxifen treatment...
December 1, 2016: Cornea
https://www.readbyqxmd.com/read/27917250/in-plane-microvortices-micromixer-based-ac-electrothermal-for-testing-drug-induced-death-of-tumor-cells
#16
Qi Lang, Yukun Ren, Divia Hobson, Ye Tao, Likai Hou, Yankai Jia, Qingming Hu, Jiangwei Liu, Xin Zhao, Hongyuan Jiang
Herein, we first describe a perfusion chip integrated with an AC electrothermal (ACET) micromixer to supply a uniform drug concentration to tumor cells. The in-plane fluid microvortices for mixing were generated by six pairs of reconstructed novel ACET asymmetric electrodes. To enhance the mixing efficiency, the novel ACET electrodes with rotating angles of 0°, 30°, and 60° were investigated. The asymmetric electrodes with a rotating angle of 60° exhibited the highest mixing efficiency by both simulated and experimental results...
November 2016: Biomicrofluidics
https://www.readbyqxmd.com/read/27916487/evaluation-of-hepatoprotective-potential-of-erythrina-indica-leaves-against-antitubercular-drugs-induced-hepatotoxicity-in-experimental-rats
#17
Mohd Mujahid, Talib Hussain, Hefazat Hussain Siddiqui, Arshad Hussain
BACKGROUND: Erythrina indica Lam. traditionally used in the treatment of laxative, diuretic, worm infestation, liver ailment and joints pain. OBJECTIVE: To evaluate the antihepatotoxic potential of Erythrina indica against isoniazid (INH) and rifampicin (RIF) induced hepatotoxicity in rats. METHODS AND MATERIAL: Liver toxicity was induced by antitubercular drugs (INH+ RIF) at dose level of 50 mg/kg each, p.o for 28 days. 50% methanolic extract of Erythrina indica (100 and 200 mg/kg) were administered orally once daily for 28 days...
December 1, 2016: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/27913821/theobromine-upregulates-osteogenesis-by-human-mesenchymal-stem-cells-in-vitro-and-accelerates-bone-development-in-rats
#18
Bret H Clough, Joni Ylostalo, Elizabeth Browder, Eoin P McNeill, Thomas J Bartosh, H Ralph Rawls, Tetsuo Nakamoto, Carl A Gregory
Theobromine (THB) is one of the major xanthine-like alkaloids found in cacao plant and a variety of other foodstuffs such as tea leaves, guarana and cola nuts. Historically, THB and its derivatives have been utilized to treat cardiac and circulatory disorders, drug-induced nephrotoxicity, proteinuria and as an immune-modulator. Our previous work demonstrated that THB has the capacity to improve the formation of hydroxyl-apatite during tooth development, suggesting that it may also enhance skeletal development...
December 2, 2016: Calcified Tissue International
https://www.readbyqxmd.com/read/27913221/role-of-the-inflammasome-in-acetaminophen-induced-liver-injury-and-acute-liver-failure
#19
REVIEW
Benjamin L Woolbright, Hartmut Jaeschke
Drug-induced acute liver failure carries a high morbidity and mortality rate. Acetaminophen overdose is the number one cause of acute liver failure and remains a major problem in Western medicine. Administration of N-acetyl cysteine is an effective antidote when given before the initial rise in toxicity; however, many patients present to the hospital after this stage occurs. As such, treatments which can alleviate late-stage acetaminophen-induced acute liver failure are imperative. While the initial mechanisms of toxicity are well described, a debate has occurred recently in the literature over whether or not there exists a second phase of injury, mediated by inflammatory processes...
November 29, 2016: Journal of Hepatology
https://www.readbyqxmd.com/read/27913030/confounding-variables-and-the-performance-of-triggers-in-detecting-unreported-adverse-drug-reactions
#20
Fabiana Rossi Varallo, Carolina Dagli-Hernandez, Caroline Pagotto, Tales Rubens de Nadai, Maria Teresa Herdeiro, Patricia de Carvalho Mastroianni
PURPOSE: This study explored the performance of trigger in detecting adverse drug reactions (ADRs), the confounding variables impairing the causal association of the ADRs, and the underreporting rate by hospital health professionals. METHODS: A 6-month cross-sectional study was conducted in a public general hospital. Data collection was conducted in 2 stages: (1) screening of patient hospitalizations to identify suspected ADRs with 9 triggers developed by the Institute of Healthcare Improvement; and (2) chart review to perform the causality assessment of the suspected ADRs identified, to describe the confounding variables associated with detection of suspected ADRs that were not drug induced, and to analyze the positive predictive value of triggers in recognizing ADRs...
November 29, 2016: Clinical Therapeutics
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