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https://www.readbyqxmd.com/read/28646580/biosimilars-for-psoriasis-worldwide-overview-of-regulatory-guidelines-uptake-and-implications-for-dermatology-clinical-practice
#1
REVIEW
A D Cohen, J J Wu, L Puig, S Chimenti, R Vender, M Rajagopalan, R Romiti, C de la Cruz, L Skov, C Zachariae, H S Young, P Foley, J M van der Walt, L Naldi, A Blauvelt
The introduction of biologic drugs for the treatment of patients with psoriasis has revolutionized treatment paradigms and enabled numerous patients to achieve disease control with an acceptable safety profile. However, the high cost of biologics limits access to these medications for the majority of patients worldwide. In recent years, the introduction of biosimilars for inflammatory diseases has become a fast evolving field. The future use of biosimilars offers the potential for decreased cost and increased access to biologic drugs for patients with psoriasis...
June 24, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28646080/considerations-from-the-iq-induction-working-group-in-response-to-drug-drug-interaction-guidances-from-regulatory-agencies-focus-on-down-regulation-cyp2c-induction-and-cyp2b6-positive-control
#2
Niresh Hariparsad, Diane Ramsden, Jairam Palamanda, Joshua G Dekeyser, Odette A Fahmi, Jane R Kenny, Heidi Einolf, Michael Mohutsky, Magalie Pardon, Amy Y Siu, Liangfu Chen, Michael Sinz, Barry Jones, Robert Walsky, Shannon Dallas, Suresh K Balani, George Zhang, David Buckley, Donald Tweedie
The European Medicines Agency (EMA), the Pharmaceutical and Medical Devices Agency and the Food and Drug Administration have issued guidances for the conduct of drug-drug interaction (DDI) studies. To examine the applicability of these regulatory recommendations specifically for induction, a group of scientists, under the auspices of the Drug Metabolism Leadership Group of the Innovation and Quality (IQ) Consortium, formed the Induction Working Group (WG). A team of 20 scientists, from 16 of the 39 pharmaceutical companies, which are members of the IQ Consortium, and three Contract Research Organizations, reviewed the recommendations, focusing initially on the current EMA guidance...
June 23, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28645482/proton-pump-inhibitors-and-survival-outcomes-in-patients-with-metastatic-renal-cell-carcinoma
#3
Aly-Khan A Lalani, Rana R McKay, Xun Lin, Ronit Simantov, Marina D Kaymakcalan, Toni K Choueiri
INTRODUCTION: Proton pump inhibitors (PPIs) are potent inhibitors of gastric acid secretion and can affect the optimal absorption of concomitant oral medications, such as vascular endothelial growth factor (VEGF) tyrosine kinase inhibitors (TKIs). The purpose of this study was to investigate the effect of PPI use on survival in metastatic renal cell carcinoma (mRCC) patients treated in the targeted therapy era. MATERIALS AND METHODS: We conducted a pooled analysis of mRCC patients treated in phase II and III clinical trials...
May 31, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28645136/childhood-traumatic-experiences-and-the-association-with-marijuana-and-cocaine-use-in-adolescence-through-adulthood
#4
Joy D Scheidell, Kelly Quinn, Susan P McGorray, B Christopher Frueh, Nisha N Beharie, Linda B Cottler, Maria R Khan
BACKGROUND AND AIMS: Examination of longitudinal relationships between childhood traumatic experiences and drug use across the life-course at the national level, with control of confounding by other forms of trauma, is needed. We aimed to estimate the prevalence of nine typologies of childhood traumas and the cumulative number experienced, correlation between traumas, and associations between individual and cumulative number of traumas with drug use during adolescence, emerging adulthood, and adulthood...
June 23, 2017: Addiction
https://www.readbyqxmd.com/read/28645065/cross-validation-of-short-forms-of-the-screener-and-opioid-assessment-for-patients-with-pain-revised-soapp-r
#5
Matthew D Finkelman, Robert N Jamison, Ronald J Kulich, Stephen F Butler, William C Jackson, Niels Smits, Scott G Weiner
BACKGROUND: The Screener and Opioid Assessment for Patients with Pain-Revised (SOAPP-R) is a 24-item assessment designed to assist in the prediction of aberrant drug-related behavior (ADB) among patients with chronic pain. Recent work has created shorter versions of the SOAPP-R, including a static 12-item short form and two computer-based methods (curtailment and stochastic curtailment) that monitor assessments in progress. The purpose of this study was to cross-validate these shorter versions in two new populations...
June 13, 2017: Drug and Alcohol Dependence
https://www.readbyqxmd.com/read/28644892/r-modafinil-exerts-weak-effects-on-spatial-memory-acquisition-and-dentate-gyrus-synaptic-plasticity
#6
Bharanidharan Shanmugasundaram, Yogesh D Aher, Jana Aradska, Marija Ilic, Daniel Daba Feyissa, Predrag Kalaba, Nilima Y Aher, Vladimir Dragacevic, Babak Saber Marouf, Thierry Langer, Harald H Sitte, Harald Hoeger, Gert Lubec, Volker Korz
Modafinil is a wake promoting drug approved for clinical use and also has cognitive enhancing properties. Its enantiomer R-Modafinil (R-MO) is not well studied in regard to cognitive enhancing properties. Hence we studied its effect in a spatial memory paradigm and its possible effects on dentate gyrus long-term potentiation (DG-LTP). Clinically relevant doses of R-MO, vehicle dimethyl sulfoxide (DMSO) or saline were administered for three days during the hole-board test and in in vivo DG-LTP. Synaptic levels of dopamine receptors D1R, D2R, dopamine transporter (DAT), and its phosphorylated form (ph-DAT) in DG tissue 4 h after LTP induction were quantified by western blot analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28644622/single-analyzer-neutral-loss-scans-in-a-linear-quadrupole-ion-trap-using-orthogonal-double-resonance-excitation
#7
Dalton T Snyder, R Graham Cooks
In this follow-up paper to our previous work on single analyzer precursor ion scans in a linear quadrupole ion trap (Snyder, D. T.; Cooks, R. G.; "Single analyzer precursor ion scans in a linear quadrupole ion trap using orthogonal double resonance excitation", J. Am. Soc. Mass Spectrom. accepted), we now report the development of single analyzer neutral loss scans in a linear quadrupole ion trap using orthogonal double resonance excitation. Methodologically, there are three key differences between single analyzer precursor ion scans and neutral loss scans under constant radiofrequency (rf) conditions: 1) in the latter experiment both excitation and ejection frequencies must be scanned, whereas in the former the ejection frequency is fixed, 2) the need to maintain a constant neutral loss while incrementing both precursor and product ion masses - complicated by the complex relationship between secular frequency and mass - requires use of two simultaneous frequency scans, both linear in mass, and 3) because the ejection frequency is scanned, a third ac signal occurring between the ac excitation and ac ejection frequency scans must also be applied and scanned in order to reject artifact peaks caused by ejection of unfragmented precursor ions...
June 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28644563/gas-phase-dissociation-study-of-erythrinian-alkaloids-by-electrospray-ionization-mass-spectrometry-and-computational-methods
#8
T Guaratini, L G P Feitosa, D B Silva, N P Lopes, J L C Lopes, R Vessecchi
Alkaloids from plants of the genus Erythrina display important biological activities, including anxiolytic action. Characterization of these alkaloids by mass spectrometry (MS) has contributed to the construction of a spectral library, has improved understanding of their structures, and has supported the proposal of fragmentation mechanisms in light of density functional calculations (DFT). In this study, we have used low- and high-resolution MS(n) analyses to investigate the fragmentation patterns of erythrinian alkaloids; we have employed the B3LYP/6-31+G(d,p) model to obtain their reactive sites...
June 23, 2017: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/28644367/oral-cholic-acid-is-efficacious-and-well-tolerated-in-patients-with-bile-acid-synthesis-and-zellweger-spectrum-disorders
#9
James E Heubi, Kevin E Bove, Kenneth D R Setchell
BACKGROUND/AIMS: Patients with bile acid synthesis disorders (BASD) due to single enzyme defects (SED) or Zellweger spectrum disorders (ZSD) accumulate hepatotoxic atypical bile acids resulting in potentially fatal progressive liver disease. We evaluated the efficacy and safety of oral cholic acid in patients with BASD. METHODS: In this phase 3, open-label, single-arm, nonrandomized, noncomparative study conducted over 18 years, patients were administered cholic acid orally 10 to 15 mg/kg/day...
June 21, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28643524/a-multicenter-retrospective-analysis-of-factors-associated-with-apixaban-related-bleeding-in-hospitalized-patients-with-end-stage-renal-disease-on-hemodialysis
#10
Taylor D Steuber, Dane L Shiltz, Alex C Cairns, Qian Ding, Katie J Binger, Julia R Courtney
BACKGROUND: In 2014, the United States Food and Drug Administration approved a labeling change for apixaban to include recommendations for patients with severe renal impairment and patients with end-stage renal disease (ESRD) on hemodialysis (HD), though these recommendations are largely based on pharmacokinetic and pharmacodynamic data. OBJECTIVE: Identify variables associated with bleeding events in hospitalized patients with ESRD on HD receiving apixaban. METHODS: This retrospective, multicenter cohort study evaluated hospitalized patients with ESRD on HD receiving apixaban from January 1, 2013, through March 31, 2016...
June 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28642704/quercetin-a-lead-compound-against-type-2-diabetes-ameliorates-glucose-uptake-via-ampk-pathway-in-skeletal-muscle-cell-line
#11
R Dhanya, A D Arya, P Nisha, P Jayamurthy
Herein we investigated the molecular mechanism of action of the citrus flavonoid, quercetin in skeletal muscle cells (L6 myotubes). Taking advantage of protein kinase inhibitors, we proved that the effect of quercetin on 2-NBDG uptake in L6 myotubes was not through insulin signaling pathway, but through adenosine monophosphate kinase (AMPK) pathway and its downstream target p38 MAPK. An increase in the cellular AMP to ATP ratio on pretreatment may account for AMPK activation which was coupled with a transient change in mitochondrial membrane potential...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28641176/epilepsy-and-pregnancy-for-healthy-pregnancies-and-happy-outcomes-john-paul-leach-on-behalf-of-the-multispecialty-uk-epilepsy-mortality-group
#12
REVIEW
J P Leach, P E Smith, J Craig, M Bagary, D Cavanagh, S Duncan, A R C Kelso, A G Marson, D McCorry, L Nashef, C Nelson-Piercy, R Northridge, K Sieradzan, S Thangaratinam, M Walker, J Winterbottom, M Reuber
Between 2009 and 2012 there were 26 epilepsy-related deaths in the UK of women who were pregnant or in the first post-partum year. The number of pregnancy-related deaths in women with epilepsy (WWE) has been increasing. Expert assessment suggests that most epilepsy-related deaths in pregnancy were preventable and attributable to poor seizure control. While prevention of seizures during pregnancy is important, a balance must be struck between seizure control and the teratogenic potential of antiepileptic drugs (AEDs)...
June 1, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28640970/prevalence-of-new-psychoactive-substances-and-prescription-drugs-in-the-belgian-driving-under-the-influence-of-drugs-population
#13
S M R Wille, C Richeval, M Nachon-Phanithavong, J M Gaulier, V Di Fazio, L Humbert, N Samyn, D Allorge
Driving under the influence of drugs (DUID) is a worldwide problem. Several countries adopted DUID legislations which prove their deterrent effect and impact on road safety. However, use of new psychoactive substances (NPS) and prescription drugs is not known as the applied roadside screening tests are not yet adapted for these compounds. In this study, 558 blood samples obtained during roadside controls in Belgium (January to August 2015) after a positive Drugwipe 5S® test and 199 oral fluid (OF) samples obtained from negatively screened test pads were analyzed...
June 22, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28638861/randomized-anticancer-and-cytotoxicity-activities-of-guibourtia-coleosperma-and-diospyros-chamaethamnus
#14
Florence Dushimemaria, C Iwanette Du Preez, Davis R Mumbengegwi
BACKGROUND: Plants have consistently proven to be a reliable and yet not fully explored source of medicines. In light of this, there is a constant demand for new treatment regimens for cancer. Namibia has a rich diversity of plant species of over 4300 with 17 % of them being endemic to Namibia. Plants growing in Namibia's diverse climatic zones produce many secondary metabolites as part of adaptation to their environment. This article focused on the screening of such phytochemicals and their cytotoxic and anticancer properties in vitro...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28638340/neurologically-potent-molecules-from-crataegus-oxyacantha-isolation-anticholinesterase-inhibition-and-molecular-docking
#15
Mumtaz Ali, Sultan Muhammad, Muhammad R Shah, Ajmal Khan, Umer Rashid, Umar Farooq, Farhat Ullah, Abdul Sadiq, Muhammad Ayaz, Majid Ali, Manzoor Ahmad, Abdul Latif
Crataegus oxyacantha is an important herbal supplement and famous for its antioxidant potential. The antioxidant in combination with anticholinesterase activity can be considered as an important target in the management of Alzheimer's disease. The compounds isolated from C. oxyacantha were evaluated for cholinesterases inhibitory activity using Ellman's assay with Galantamine as standard drug. Total of nine (1-9) compounds were isolated. Compounds 1 and 2 were isolated for the first time from natural source...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28637278/functional-and-structural-analysis-of-at-specific-minor-groove-binders-that-disrupt-dna-protein-interactions-and-cause-disintegration-of-the-trypanosoma-brucei-kinetoplast
#16
Cinthia R Millan, Francisco J Acosta-Reyes, Laura Lagartera, Godwin U Ebiloma, Leandro Lemgruber, J Jonathan Nué Martínez, Núria Saperas, Christophe Dardonville, Harry P de Koning, J Lourdes Campos
Trypanosoma brucei, the causative agent of sleeping sickness (Human African Trypanosomiasis, HAT), contains a kinetoplast with the mitochondrial DNA (kDNA), comprising of >70% AT base pairs. This has prompted studies of drugs interacting with AT-rich DNA, such as the N-phenylbenzamide bis(2-aminoimidazoline) derivatives 1 [4-((4,5-dihydro-1H-imidazol-2-yl)amino)-N-(4-((4,5-dihydro-1H-imidazol-2-yl)amino)phenyl)benzamide dihydrochloride] and 2 [N-(3-chloro-4-((4,5-dihydro-1H-imidazol-2-yl)amino)phenyl)-4-((4,5-dihydro-1H-imidazol-2-yl)amino)benzamide] as potential drugs for HAT...
June 16, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28636269/commentary-on-r-d-trends-away-from-general-medicine-cardiovascular-drugs-can-the-fda-help-reverse-the-trend
#17
R J Meyer
In the latter part of the 20th century, drug development in cardiovascular diseases (CVDs) was a paragon of "modern" therapeutics, bringing about a substantial number of effective, well-tolerated agents targeting some of the most prevalent diseases of the Western world. These drugs were often examples of rational drug development targeting specific pathophysiologic pathways previously elucidated through basic research (e.g., targeting of the renin-angiotensin system or the cholesterol synthesis pathway). The widespread adoption of these ground-breaking medications in practice and into medical guidelines undoubtedly played a role in the fall of morbidity and mortality from CVD in the United States in recent decades...
June 21, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28634183/syk-inhibitors-interfere-with-erythrocyte-membrane-modification-during-p-falciparum-growth-and-suppress-parasite-egress
#18
Antonella Pantaleo, Kristina R Kesely, Maria Carmina Pau, Ioannis Tsamesidis, Evelin Schwarzer, Oleksii A Skorokhod, Huynh D Chien, Marta Ponzi, Lucia Bertuccini, Philip S Low, Francesco M Turrini
Band 3 (a.k.a. the anion exchanger, SLCA1, AE1) constitutes the major attachment site of the spectrin-based cytoskeleton to the erythrocyte's lipid bilayer and thereby contributes critically to the stability of the red cell membrane. During the intra-erythrocytic stage of Plasmodium falciparum's life cycle, band 3 becomes tyrosine phosphorylated in response to oxidative stress, leading to a decrease in its affinity for the spectrin/actin cytoskeleton and causing global membrane destabilization. Because this membrane weakening is hypothesized to facilitate parasite egress and the consequent dissemination of released merozoites throughout the bloodstream, we decided to explore which tyrosine kinase inhibitors might block the kinase-induced membrane destabilization...
June 20, 2017: Blood
https://www.readbyqxmd.com/read/28633996/effects-of-monoaminergic-drugs-on-training-induced-motor-cortex-plasticity-in-older-adults
#19
Trisha M Kesar, Samir R Belagaje, Paola Pergami, Marc W Haut, Gerald Hobbs, Cathrin M Buetefisch
Primary motor cortex (M1) plasticity is involved in motor learning and stroke motor recovery, and enhanced by increasing monoaminergic transmission. Age impacts these processes but there is a paucity of systematic studies on the effects of monoaminergic drugs in older adults. Here, in ten older adults (age 61+ 4 years, 4 males), we determine the effects of a single oral dose of carbidopa/levodopa (DOPA), d-amphetamine (AMPH), methylphenidate (MEPH) and placebo (PLAC) on M1 excitability and motor training-induced M1 plasticity...
June 17, 2017: Brain Research
https://www.readbyqxmd.com/read/28633104/transcriptional-and-cellular-effects-of-paracetamol-in-the-oyster-crassostrea-gigas
#20
M J Bebianno, A C P Mello, M A S Serrano, F Flores-Nunes, J J Mattos, F L Zacchi, C E Piazza, M N Siebert, R S Piazza, C H A M Gomes, C M R Melo, A C D Bainy
Acetaminophen (paracetamol) (PAR) is one of the most popular non-steroidal anti-inflammatory drugs (NSAIDs) with analgesic and antipyretic properties consumed worldwide and often detected in the aquatic environment. Due to the fact that PAR induces oxidative stress in mammals, the aim of this study was to evaluate if similar effects were observed in oysters Crassostrea gigas, given their economic and ecological importance and worldwide distribution. Oysters were exposed for 1, 4 and 7 days to two different sublethal PAR concentrations (0, 1 and 100μgL(-1))...
June 17, 2017: Ecotoxicology and Environmental Safety
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