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https://www.readbyqxmd.com/read/28729827/lateral-hypothalamic-control-of-the-ventral-tegmental-area-reward-evaluation-and-the-driving-of-motivated-behavior
#1
REVIEW
Susan M Tyree, Luis de Lecea
The lateral hypothalamus (LH) plays an important role in many motivated behaviors, sleep-wake states, food intake, drug-seeking, energy balance, etc. It is also home to a heterogeneous population of neurons that express and co-express multiple neuropeptides including hypocretin (Hcrt), melanin-concentrating hormone (MCH), cocaine- and amphetamine-regulated transcript (CART) and neurotensin (NT). These neurons project widely throughout the brain to areas such as the locus coeruleus, the bed nucleus of the stria terminalis, the amygdala and the ventral tegmental area (VTA)...
2017: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/28728636/magnitude-and-trends-in-heavy-episodic-drinking-alcohol-impaired-driving-and-alcohol-related-mortality-and-overdose-hospitalizations-among-emerging-adults-of-college-ages-18-24-in-the-united-states-1998-2014
#2
Ralph Hingson, Wenxing Zha, Daniel Smyth
OBJECTIVE: This article estimates percentages of U.S. emerging adults ages 18-24 engaging in past-month heavy episodic drinking and past-year alcohol-impaired driving, and numbers experiencing alcohol-related unintentional injury deaths and overdose hospitalizations between 1998 and 2014. METHOD: We analyzed national injury mortality data from coroner, census, and college enrollment statistics, the National Survey on Drug Use and Health, and the Nationwide Inpatient Sample...
July 2017: Journal of Studies on Alcohol and Drugs
https://www.readbyqxmd.com/read/28727520/undocumented-immigration-drug-problems-and-driving-under-the-influence-in-the-united-states-1990-2014
#3
Michael T Light, Ty Miller, Brian C Kelly
OBJECTIVES: To examine the influence of undocumented immigration in the United States on 4 different metrics of drug and alcohol problems: drug arrests, drug overdose fatalities, driving under the influence (DUI) arrests, and DUI deaths. METHODS: We combined newly developed state-level estimates of the undocumented population between 1990 and 2014 from the Center for Migration Studies with arrest data from the Federal Bureau of Investigation Uniform Crime Reports and fatality information from the Fatality Analysis Reporting System and the Centers for Disease Control and Prevention Underlying Cause of Death database...
July 20, 2017: American Journal of Public Health
https://www.readbyqxmd.com/read/28726348/state-insurance-mandates-and-off-label-use-of-chemotherapy
#4
Fabrice Smieliauskas, Hari Sharma, Connor Hurley, Jonas A de Souza, Ya-Chen Tina Shih
Access to cancer drugs used off-label is important to cancer patients but may drive up healthcare costs with little evidence of clinical benefit. We hypothesized that state health insurance mandates for private insurers to provide coverage for off-label use of cancer drugs cause higher rates of off-label use. We used Truven MarketScan data from 1999 to 2007 on utilization of 35 infused chemotherapy drugs in private health plans in the United States, covering the period when eight states implemented off-label coverage laws...
July 20, 2017: Health Economics
https://www.readbyqxmd.com/read/28725482/systems-biology-driving-drug-development-from-design-to-the-clinical-testing-of-the-anti-erbb3-antibody-seribantumab-mm-121
#5
REVIEW
Birgit Schoeberl, Art Kudla, Kristina Masson, Ashish Kalra, Michael Curley, Gregory Finn, Emily Pace, Brian Harms, Jaeyeon Kim, Jeff Kearns, Aaron Fulgham, Olga Burenkova, Viara Grantcharova, Defne Yarar, Violette Paragas, Jonathan Fitzgerald, Marisa Wainszelbaum, Kip West, Sara Mathews, Rachel Nering, Bambang Adiwijaya, Gabriela Garcia, Bill Kubasek, Victor Moyo, Akos Czibere, Ulrik B Nielsen, Gavin MacBeath
The ErbB family of receptor tyrosine kinases comprises four members: epidermal growth factor receptor (EGFR/ErbB1), human EGFR 2 (HER2/ErbB2), ErbB3/HER3, and ErbB4/HER4. The first two members of this family, EGFR and HER2, have been implicated in tumorigenesis and cancer progression for several decades, and numerous drugs have now been approved that target these two proteins. Less attention, however, has been paid to the role of this family in mediating cancer cell survival and drug tolerance. To better understand the complex signal transduction network triggered by the ErbB receptor family, we built a computational model that quantitatively captures the dynamics of ErbB signaling...
2017: NPJ Systems Biology and Applications
https://www.readbyqxmd.com/read/28724393/methicillin-resistant-staphylococcus-aureus-emerged-long-before-the-introduction-of-methicillin-into-clinical-practice
#6
Catriona P Harkins, Bruno Pichon, Michel Doumith, Julian Parkhill, Henrik Westh, Alexander Tomasz, Herminia de Lencastre, Stephen D Bentley, Angela M Kearns, Matthew T G Holden
BACKGROUND: The spread of drug-resistant bacterial pathogens poses a major threat to global health. It is widely recognised that the widespread use of antibiotics has generated selective pressures that have driven the emergence of resistant strains. Methicillin-resistant Staphylococcus aureus (MRSA) was first observed in 1960, less than one year after the introduction of this second generation beta-lactam antibiotic into clinical practice. Epidemiological evidence has always suggested that resistance arose around this period, when the mecA gene encoding methicillin resistance carried on an SCCmec element, was horizontally transferred to an intrinsically sensitive strain of S...
July 20, 2017: Genome Biology
https://www.readbyqxmd.com/read/28722539/an-autophagy-driven-pathway-of-atp-secretion-supports-the-aggressive-phenotype-of-braf-v600e-inhibitor-resistant-metastatic-melanoma-cells
#7
Shaun Martin, Aleksandra M Dudek-Peric, Abhishek D Garg, Heleen Roose, Seyma Demirsoy, Sofie Van Eygen, Freya Mertens, Peter Vangheluwe, Hugo Vankelecom, Patrizia Agostinis
The ingrained capacity of melanoma cells to rapidly evolve towards an aggressive phenotype is manifested by their increased ability to develop drug-resistance, evident in the case of vemurafenib, a therapeutic-agent targeting BRAF(V600E). Previous studies indicated a tight correlation between heightened melanoma-associated macroautophagy/autophagy and acquired Vemurafenib resistance. However, how this vesicular trafficking pathway supports Vemurafenib resistance remains unclear. Here, using isogenic human and murine melanoma cell lines of Vemurafenib-resistant and patient-derived melanoma cells with primary resistance to the BRAF(V600E) inhibitor, we found that the enhanced migration and invasion of the resistant melanoma cells correlated with an enhanced autophagic capacity and autophagosome-mediated secretion of ATP...
July 19, 2017: Autophagy
https://www.readbyqxmd.com/read/28722536/travel-burden-associated-with-granulocyte-colony-stimulating-factor-administration-in-a-medicare-aged-population-a-geospatial-analysis
#8
J Mark Stephens, Mark Bensink, Charles Bowers, Christopher S Hollenbeak
OBJECTIVE: Prophylaxis with granulocyte colony-stimulating factors (G-CSFs) is recommended for patients receiving myelosuppressive chemotherapy regimens with a high risk of febrile neutropenia (FN). G-CSFs should be administered starting the day after chemotherapy, necessitating return trips to the oncology clinic at the end of each cycle. We examined the travel burden related to prophylactic G-CSF injections after chemotherapy in the United States (US). METHODS: We used 2012-2014 Medicare claims data to identify a national cohort of beneficiaries age 65+ with non-myeloid cancers who received both chemotherapy and prophylactic G-CSFs...
July 19, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28721821/current-perspectives-for-the-use-of-gonane-progesteronergic-drugs-in-the-treatment-of-central-hypoventilation-syndromes
#9
Camille Loiseau, Florence Cayetanot, Fanny Joubert, Anne-Sophie Perrin-Terrin, Philippe Cardot, Marie-Noëlle Fiamma, Alain Frugiere, Christian Straus, Laurence Bodineau
BACKGROUND: Central alveolar hypoventilation syndromes (CHS) encompass neurorespiratory diseases resulting from congenital or acquired neurological disorders. Hypercapnia, acidosis, and hypoxemia resulting from CHS negatively affect physiological functions and can be life-threatening. To date, the absence of pharmacological treatment implies that the patients must receive assisted ventilation throughout their lives. OBJECTIVE: To highlight the relevance of determining conditions in which using gonane synthetic progestins could be of potential clinical interest for the treatment of CHS...
July 19, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28719744/high-resolution-insights-into-the-stepwise-self-assembly-of-nanofiber-from-bioactive-peptides
#10
Fude Sun, Long Chen, Xiufang Ding, Lida Xu, Xirui Zhou, Peng Wei, Jun-Feng Liang, Shi-Zhong Luo
Peptide self-assembly has a profound biological significance since self-assembled bioactive peptides are gifted with improved bioactivity as well as life-span. In this study, peptide self-assembly was investigated using a therapeutic peptide, PTP-7S (EENFLGALFKALSKLL). Combining experiments of atomic force microscopy (AFM), circular dichroism (CD) and 8-anilino-1-naphthalenesulfonic acid (ANS) fluorescence spectra, PTP-7S showing α-helix was found self-assembling into nanofibers in solution. Relying on the coarse-grained (CG) dynamic simulations, the self-assembling of PTP-7S was revealed as a stepwise process that peptide monomers first clustered into peptide-assembling units (PUs) with charged surface, and then the PUs integrated together to construct nano-fibril aggregates...
July 18, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28719606/prescription-medicine-use-by-pedestrians-and-the-risk-of-injurious-road-traffic-crashes-a-case-crossover-study
#11
Mélanie Née, Marta Avalos, Audrey Luxcey, Benjamin Contrand, Louis-Rachid Salmi, Annie Fourrier-Réglat, Blandine Gadegbeku, Emmanuel Lagarde, Ludivine Orriols
BACKGROUND: While some medicinal drugs have been found to affect driving ability, no study has investigated whether a relationship exists between these medicines and crashes involving pedestrians. The aim of this study was to explore the association between the use of medicinal drugs and the risk of being involved in a road traffic crash as a pedestrian. METHODS AND FINDINGS: Data from 3 French nationwide databases were matched. We used the case-crossover design to control for time-invariant factors by using each case as its own control...
July 2017: PLoS Medicine
https://www.readbyqxmd.com/read/28719221/biosimilars-biologics-that-meet-patients-needs-and-healthcare-economics
#12
Mark McCamish, William Yoon, James McKay
Biologics have revolutionized medical care, yet uniform access to these effective medicines remains difficult due to the increasing costs of healthcare. As patent exclusivity on the early biologics wanes, regulatory and legal systems are adapting to bring competition to the field in the form of biosimilars. Biosimilars are biologics that offer the same clinical benefit in one or more of the same indications as the reference biologic drug and bring competition to the biologics space. Legislation creating a pathway resulting in the first US approvals of biosimilars has been in place since 2010, but the regulatory methodology and science of evaluating the sameness of two biologics has been in use for decades...
September 2016: American Journal of Managed Care
https://www.readbyqxmd.com/read/28718829/aspirin-prevention-of-colorectal-cancer-focus-on-nf-%C3%AE%C2%BAb-signalling-and-the-nucleolus
#13
REVIEW
Jingyu Chen, Lesley A Stark
Overwhelming evidence indicates that aspirin and related non-steroidal anti-inflammatory drugs (NSAIDs) have anti-tumour activity and the potential to prevent cancer, particularly colorectal cancer. However, the mechanisms underlying this effect remain hypothetical. Dysregulation of the nuclear factor-kappaB (NF-κB) transcription factor is a common event in many cancer types which contributes to tumour initiation and progression by driving expression of pro-proliferative/anti-apoptotic genes. In this review, we will focus on the current knowledge regarding NSAID effects on the NF-κB signalling pathway in pre-cancerous and cancerous lesions, and the evidence that these effects contribute to the anti-tumour activity of the agents...
July 18, 2017: Biomedicines
https://www.readbyqxmd.com/read/28717648/response-detection-of-castrate-resistant-prostate-cancer-to-clinically-utilised-and-novel-treatments-by-monitoring-phospholipid-metabolism
#14
Tim A D Smith, Su M Phyu, Kholoud S Alzyoud, Chih-Chung Tseng
Androgen receptor (AR) activation is the primary driving factor in prostate cancer which is initially responsive to castration but then becomes resistant (castration-resistant prostate cancer (CRPC)). CRPC cells still retain the functioning AR which can be targeted by other therapies. A recent promising development is the use of inhibitors (Epi-1) of protein-protein interaction to inhibit AR-activated signalling. Translating novel therapies into the clinic requires sensitive early response indicators. Here potential response markers are explored...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28716899/hdac1-upregulation-by-nanog-promotes-multidrug-resistance-and-a-stem-like-phenotype-in-immune-edited-tumor-cells
#15
Kwon-Ho Song, Chel Hun Choi, Hyo-Jung Lee, Se Jin Oh, Seon Rang Woo, Soon-Oh Hong, Kyung Hee Noh, Hanbyoul Cho, Eun Joo Chung, Jae-Hoon Kim, Joon-Yong Chung, Stephen M Hewitt, Seungki Baek, Kyung-Mi Lee, Cassian Yee, Minjoo Son, Chih-Ping Mao, T-C Wu, Tae Woo Kim
Cancer immunoediting drives the adaptation of tumor cells to host immune surveillance. Immunoediting driven by antigen (Ag)-specific T cells enriches NANOG expression in tumor cells, resulting in a stem-like phenotype and immune resistance. Here we identify HDAC1 as a key mediator of the NANOG-associated phenotype. NANOG upregulated HDAC1 through promoter occupancy, thereby decreasing histone H3 acetylation on K14 and K27. NANOG-dependent, HDAC1-driven epigenetic silencing of cell cycle inhibitor CDKN2D and CDKN1B induced stem-like features...
July 17, 2017: Cancer Research
https://www.readbyqxmd.com/read/28715911/hepatitis-c-treatment-regimens-are-cost-effective-but-compared-with-what
#16
T Joseph Mattingly, Julia F Slejko, C Daniel Mullins
BACKGROUND: Numerous economic models have been published evaluating treatment of chronic hepatitis C virus (HCV) infection, but none provide a comprehensive comparison among new antiviral agents. OBJECTIVE: Evaluate the cost-effectiveness of all recommended therapies for treatment of genotypes 1 and 4 chronic HCV. METHODS: Using data from clinical trials, observational analyses, and drug pricing databases, Markov decision models were developed for HCV genotypes 1 and 4 to compare all recommended drugs from the perspective of the third-party payer over a 5-, 10-, and 50-year time horizon...
July 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28714329/synthetic-sutures-clinical-evaluation-and-future-developments
#17
Roxanna E Abhari, Joana A Martins, Hayley L Morris, Pierre-Alexis Mouthuy, Andrew Carr
Today's sutures are the result of a 4000-year innovation process with regard to their materials and manufacturing techniques, yet little has been done to enhance the therapeutic value of the suture itself. In this review, we explore the historical development, regulatory database and clinical literature of sutures to gain a fuller picture of suture advances to date. First, we examine historical shifts in suture manufacturing companies and review suture regulatory databases to understand the forces driving suture development...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28713678/drug-development-against-the-hippo-pathway-in-mesothelioma
#18
REVIEW
Gavitt A Woodard, Yi-Lin Yang, Liang You, David M Jablons
Advances in the treatments for malignant pleural mesothelioma (MPM) have been disappointing until recently. Conventional cytotoxic drugs fail in MPM in part because they do not address the cancer stem cell population or stem cell pathways that drive tumor resistance and resurgence following treatment. The Hippo stem cell pathway regulates cell contact inhibition with tumor suppressor genes such as NF2 (Neurofibromatosis 2) upstream controlling YAP (Yes-associated protein 1) oncogenes. NF2 is mutated in 40-50% of all MPM and downstream YAP is constitutively active in greater than 70% of MPM, making the downstream YAP/TEAD (transcriptional enhancer associate domain) complex the ultimate target...
June 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28712319/primary-liver-cancer-genome-sequencing-translational-implications-and-challenges
#19
Demosthenes E Ziogas, Ioannis D Kyrochristos, Georgios K Glantzounis, Dimitrios Christodoulou, Evangelos Felekouras, Dimitrios H Roukos
The prognosis of primary liver cancer (PLC) remains poor and is explained by the slow progress in understanding the molecular pathways driving tumorigenesis, therapeutic resistance and relapse. For early PLCs, complete surgical resection is the only effective treatment, with sorafenib and, more recently, regorafenib prolonging overall survival by a few months. Areas covered: Application of next-generation sequencing (NGS), including targeted NGS (tNGS), whole-exome sequencing (WES), whole-genome sequencing (WGS) and RNA sequencing (RNAseq), on clinical samples from patients with hepatocellular carcinoma (HCC) and intrahepatic cholangiocarcinoma (ICC) could aid in comprehending tumorigenesis, genetic and genomic heterogeneity, as well as developing molecular classifications for specialized targeted therapy...
July 17, 2017: Expert Review of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28710408/non-ketogenic-combination-of-nutritional-strategies-provides-robust-protection-against-seizures
#20
Glenn Dallérac, Julien Moulard, Jean-François Benoist, Stefan Rouach, Stéphane Auvin, Angèle Guilbot, Loïc Lenoir, Nathalie Rouach
Epilepsy is a neurological condition that affects 1% of the world population. Conventional treatments of epilepsy use drugs targeting neuronal excitability, inhibitory or excitatory transmission. Yet, one third of patients presents an intractable form of epilepsy and fails to respond to pharmacological anti-epileptic strategies. The ketogenic diet is a well-established non-pharmacological treatment that has been proven to be effective in reducing seizure frequency in the pharmaco-resistant patients. This dietary solution is however extremely restrictive and can be associated with complications caused by the high [fat]:[carbohydrate + protein] ratio...
July 14, 2017: Scientific Reports
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