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https://www.readbyqxmd.com/read/28325801/insulin-and-glucagon-like-peptide-1-receptor-agonist-combination-therapy-in-type-2-diabetes-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#1
REVIEW
Maria Ida Maiorino, Paolo Chiodini, Giuseppe Bellastella, Annalisa Capuano, Katherine Esposito, Dario Giugliano
OBJECTIVE: The combination of basal insulin plus a glucagon-like peptide 1 receptor agonist (GLP-1RA) has been proposed as a treatment option to intensify insulin therapy in type 2 diabetes. We performed a meta-analysis of randomized controlled trials (RCTs) comparing this combination strategy to other injectable antidiabetes treatments on metabolic control in adult patients with type 2 diabetes. RESEARCH DESIGN AND METHODS: We conducted an electronic search until November 2016 on many electronic databases to identify RCTs assessing changes in HbA1c, proportion of patients at HbA1c target ≤7% (53 mmol/mol), hypoglycemia, and weight change...
April 2017: Diabetes Care
https://www.readbyqxmd.com/read/28319724/interactions-between-tafenoquine-and-artemisinin-combination-therapy-partner-drug-in-asexual-and-sexual-stage-plasmodium-falciparum
#2
Karen Kemirembe, Mynthia Cabrera, Liwang Cui
The 8-aminoquinoline tafenoquine (TFQ), a primaquine derivative, is currently in late-stage clinical development for the radical cure of P. vivax. Here drug interactions between TFQ and chloroquine and six artemisinin-combination therapy (ACT) partner drugs in P. falciparum asexual stages and gametocytes were investigated. TFQ was mostly synergistic with the ACT-partner drugs in asexual parasites regardless of genetic backgrounds. However, at fixed ratios of 1:3, 1:1 and 3:1, TFQ only interacted synergistically with naphthoquine, pyronaridine and piperaquine in gametocytes...
March 11, 2017: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/28318841/acquisition-of-nicotine-self-administration-in-amphetamine-and-phencyclidine-models-of-schizophrenia-a-role-for-stress
#3
Paul J Fletcher, Zhaoxia Li, Kathleen M Coen, Anh D Lê
Nicotine use and dependence is very high in patients with schizophrenia. One possible reason is that altered dopamine or glutamate activity in schizophrenia enhances the reinforcing effectiveness of nicotine. We used animal models to test the hypothesis that a hyperdopaminergic state (induced by repeated intermittent injections of amphetamine) or altered glutamate function (subchronic injection of phencyclidine, PCP) facilitates spontaneous acquisition of nicotine self-administration in rats. In Experiment 1 animals in an amphetamine-induced sensitized state (AISS) did not differ from saline-injected controls in their acquisition and maintenance of nicotine self-administration...
March 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28301174/differential-characteristics-of-ketamine-self-administration-in-the-olfactory-bulbectomy-model-of-depression-in-male-rats
#4
Zuzana Babinska, Jana Ruda-Kucerova
Ketamine has been extensively studied for its antidepressant potential, with promising results in both preclinical and clinical studies. However, concerns regarding its abuse liabilities greatly limit its potential to become an approved treatment for depression. Therefore, a better understanding the risks and benefits of ketamine use in depression is needed. This study aimed to assess the characteristics of operant intravenous (IV) ketamine self-administration and relapse-like behavior in the olfactory bulbectomy (OBX) model of depression in male rats...
April 2017: Experimental and Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28297730/point-of-care-coagulation-monitoring-in-trauma-patients
#5
Philipp Stein, Alexander Kaserer, Gabriela H Spahn, Donat R Spahn
Trauma remains one of the major causes of death and disability all over the world. Uncontrolled blood loss and trauma-induced coagulopathy represent preventable causes of trauma-related morbidity and mortality. Treatment may consist of allogeneic blood product transfusion at a fixed ratio or in an individualized goal-directed way based on point-of-care (POC) and routine laboratory measurements. Viscoelastic POC measurement of the developing clot in whole blood and POC platelet function testing allow rapid and tailored coagulation and transfusion treatment based on goal-directed, factor concentrate-based algorithms...
March 15, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28294641/evaluation-of-the-long-term-cost-effectiveness-of-ideglira-versus-liraglutide-added-to-basal-insulin-for-patients-with-type-2-diabetes-failing-to-achieve-glycemic-control-on-basal-insulin-in-the-usa
#6
B Hunt, M Mocarski, W J Valentine, J Langer
BACKGROUND AND AIMS: IDegLira, a fixed ratio combination of insulin degludec and glucagon-like peptide-1 receptor agonist liraglutide, utilizes the complementary mechanisms of action of these two agents to improve glycemic control with low risk of hypoglycemia and avoidance of weight gain. The aim of the present analysis was to assess the long-term cost-effectiveness of IDegLira vs liraglutide added to basal insulin, for patients with type 2 diabetes not achieving glycemic control on basal insulin in the US setting...
March 3, 2017: Journal of Medical Economics
https://www.readbyqxmd.com/read/28287790/cocaine-self-administration-in-male-and-female-rats-perinatally-exposed-to-pcbs-evaluating-drug-use-in-an-animal-model-of-environmental-contaminant-exposure
#7
Mellessa M Miller, Abby E Meyer, Jenna L N Sprowles, Helen J K Sable
Polychlorinated biphenyls (PCBs) are ubiquitous environmental toxicants known to adversely impact human health. Ortho-substituted PCBs affect the nervous system, including the brain dopaminergic system. The reinforcing effects of psychostimulants are typically modulated via the dopaminergic system, so this study used a preclinical (i.e., rodent) model to evaluate whether developmental contaminant exposure altered intravenous self-administration (IV SA) for the psychostimulant cocaine. Long-Evans rats were perinatally exposed to 6 or 3 mg/kg/day of PCBs throughout gestation and lactation and compared with nonexposed controls...
April 2017: Experimental and Clinical Psychopharmacology
https://www.readbyqxmd.com/read/28282219/a-fixed-ratio-combination-of-insulin-degludec-and-liraglutide-ideglira-reduces-glycemic-fluctuation-and-brings-more-patients-with-type-2-diabetes-within-blood-glucose-target-ranges
#8
Allen B King, Athena Philis-Tsimikas, Eric S Kilpatrick, Irene H Langbakke, Kamilla Begtrup, Tina Vilsbøll
BACKGROUND: Reducing glycemic fluctuation is important for optimal diabetes management. This post hoc analysis examined glycemic fluctuations and the proportion of subjects achieving recommended blood glucose targets with the fixed ratio combination of insulin degludec and liraglutide (IDegLira) compared to insulin degludec (IDeg) and liraglutide alone. METHODS: We analyzed nine-point self-monitored blood glucose (SMBG) profiles from two randomized trials involving IDegLira in patients with type 2 diabetes (T2D), and continuous glucose monitoring (CGM) data from a subset of patients in one of these trials to assess glycemic fluctuation and day-to-day variability...
March 10, 2017: Diabetes Technology & Therapeutics
https://www.readbyqxmd.com/read/28243712/altered-sucrose-self-administration-following-injection-of-melanocortin-receptor-agonists-and-antagonists-into-the-ventral-tegmental-area
#9
Laranci Shanmugarajah, Anna I Dunigan, Kyle J Frantz, Aaron G Roseberry
RATIONALE AND OBJECTIVES: Alpha-melanocyte stimulating hormone (αMSH) and agouti-related protein (AgRP) are antagonistic neuropeptides that play an important role in the control of feeding and body weight through their central actions on the melanocortin-3 and melanocortin-4 receptors. Increasing evidence indicates that αMSH and AgRP can interact with the mesolimbic dopamine system to regulate feeding as well as other behaviors. For example, we have shown previously that injection of melanocortin receptor agonists and antagonists into the ventral tegmental area (VTA) alters both normal home-cage feeding and the intake of sucrose solutions, but it remains unknown whether αMSH and AgRP can also act in the VTA to affect reward-related feeding...
February 27, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28229020/an-open-source-device-for-operant-licking-in-rats
#10
Matthew Longley, Ethan L Willis, Cindy X Tay, Hao Chen
We created an easy-to-use device for operant licking experiments and another device that records environmental variables. Both devices use the Raspberry Pi computer to obtain data from multiple input devices (e.g., radio frequency identification tag readers, touch and motion sensors, environmental sensors) and activate output devices (e.g., LED lights, syringe pumps) as needed. Data gathered from these devices are stored locally on the computer but can be automatically transferred to a remote server via a wireless network...
2017: PeerJ
https://www.readbyqxmd.com/read/28194789/behavioral-effects-of-delayed-timeouts-from-reinforcement
#11
Tom Byrne, Alan Poling
Timeouts are sometimes used in applied settings to reduce target responses, and in some circumstances delays are unavoidably imposed between the onset of a timeout and the offset of the response that produces it. The present study examined the effects of signaled and unsignaled timeouts in rats exposed to concurrent fixed-ratio 1 fixed-ratio 1 schedules of food delivery, where each response on one lever, the location of which changed across conditions, produced both food and a delayed 10-s timeout. Delays of 0 to 38 s were examined...
February 14, 2017: Journal of the Experimental Analysis of Behavior
https://www.readbyqxmd.com/read/28187948/alcohol-drinking-during-adolescence-increases-consumptive-responses-to-alcohol-in-adulthood-in-wistar-rats
#12
Leslie R Amodeo, Diana Kneiber, Derek N Wills, Cindy L Ehlers
Binge drinking and the onset of alcohol-use disorders usually peak during the transition between late adolescence and early adulthood, and early adolescent onset of alcohol consumption has been demonstrated to increase the risk for alcohol dependence in adulthood. In the present study, we describe an animal model of early adolescent alcohol consumption where animals drink unsweetened and unflavored ethanol in high concentrations (20%). Using this model, we investigated the influence of drinking on alcohol-related appetitive behavior and alcohol consumption levels in early adulthood...
March 2017: Alcohol
https://www.readbyqxmd.com/read/28182849/controlling-the-false-discoveries-in-lasso
#13
Hanwen Huang
The LASSO method estimates coefficients by minimizing the residual sum of squares plus a penalty term. The regularization parameter λ in LASSO controls the trade-off between data fitting and sparsity. We derive relationship between λ and the false discovery proportion (FDP) of LASSO estimator and show how to select λ so as to achieve a desired FDP. Our estimation is based on the asymptotic distribution of LASSO estimator in the limit of both sample size and dimension going to infinity with fixed ratio. We use a factor analysis model to describe the dependence structure of the design matrix...
February 9, 2017: Biometrics
https://www.readbyqxmd.com/read/28179474/individual-differences-in-the-relative-reinforcing-effects-of-3-4-methylenedioxypyrovalerone-mdpv-under-fixed-and-progressive-ratio-schedules-of-reinforcement-in-rats
#14
Brenda M Gannon, Kayla I Galindo, Kenner C Rice, Gregory T Collins
The recreational use of designer drugs, including synthetic cathinones (bath salts), is associated with high levels of abuse and toxicity, and represents a growing threat to public health. MDPV (3,4-methylenedioxypyrovalerone) is a cocaine-like monoamine uptake inhibitor, and one of the most widely available and abused synthetic cathinones. The present study used male Sprague-Dawley rats to directly compare: (1) the acquisition of responding for MDPV and cocaine under a fixed ratio (FR) 1 schedule of reinforcement; (2) full dose-response curves for MDPV and cocaine under FR5; and (3) progressive ratio (PR) schedules of reinforcement...
February 8, 2017: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/28177981/high-fat-diet-alters-weight-caloric-intake-and-haloperidol-sensitivity-in-the-context-of-effort-based-responding
#15
Stephen H Robertson, Steven R Boomhower, Erin B Rasmussen
High-fat (HF) diets result in weight gain, hyperphagia, and reduced dopamine D2 signaling; however, these findings have been obtained only under free-feeding conditions. This study tested the extent to which HF diet affects effort-dependent food procurement and the extent to which dopamine signaling is involved. Male Sprague-Dawley rats consumed either a HF (n=20) or a standard-chow (n=20) diet. We assessed the sensitivity to effort-based reinforcement in 10 rats from each group by measuring consumption across a series of fixed-ratio schedules (FR 5-FR 300) under a closed economy and quantified performance using the exponential-demand equation...
February 7, 2017: Behavioural Pharmacology
https://www.readbyqxmd.com/read/28151829/haemotherapy-algorithm-for-the-management-of-trauma-induced-coagulopathy-an-australian-perspective
#16
James Winearls, Biswadev Mitra, Michael C Reade
PURPOSE OF REVIEW: Recent advances in the understanding of the pathophysiological processes associated with traumatic haemorrhage and trauma-induced coagulopathy have resulted in improved outcomes for seriously injured trauma patients. However, a significant number of trauma patients still die from haemorrhage. This article reviews the various transfusion strategies utilized in the management of traumatic haemorrhage and describes the major haemorrhage protocol (MHP) strategy employed by an Australian trauma centre...
April 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28150516/efficacy-and-safety-of-fixed-ratio-combination-of-insulin-degludec-and-liraglutide-ideglira-for-the-treatment-of-type-2-diabetes
#17
REVIEW
Louise Vedtofte, Filip K Knop, Tina Vilsbøll
Type 2 diabetes (T2D) is a progressive disease with increasing prevalence in most countries. The majority of patients with T2D have inadequate glycaemic control, which increases the risk of diabetic complications later in life. New therapies with improved safety profiles are required to tackle the progressive nature of T2D. Areas covered: The efficacy and safety profile of IDegLira - a once-daily, fixed-ratio combination of insulin degludec and liraglutide, a glucagon-like peptide-1 receptor agonist (GLP-1RA), for the treatment of T2D - has been extensively evaluated...
March 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28137754/efficacy-and-safety-of-follitropin-alfa-lutropin-alfa-in-art-a-randomized-controlled-trial-in-poor-ovarian-responders
#18
P Humaidan, W Chin, D Rogoff, T D'Hooghe, S Longobardi, J Hubbard, J Schertz
STUDY QUESTION: How does the efficacy and safety of a fixed-ratio combination of recombinant human FSH plus recombinant human LH (follitropin alfa plus lutropin alfa; r-hFSH/r-hLH) compare with that of r-hFSH monotherapy for controlled ovarian stimulation (COS) in patients with poor ovarian response (POR)? SUMMARY ANSWER: The primary and secondary efficacy endpoints were comparable between treatment groups and the safety profile of both treatment regimens was favourable...
January 30, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28127624/oxycodone-self-administration-in-male-and-female-rats
#19
Maria Mavrikaki, Marco Pravetoni, Sarah Page, David Potter, Elena Chartoff
RATIONALE: Oxycodone is one of the most widely prescribed painkillers in the USA. However, its use is complicated by high abuse potential. As sex differences have been described in drug addiction, the present study tested for sex differences in intravenous oxycodone self-administration in rats. METHODS: Male and female Sprague-Dawley rats were implanted with jugular vein catheters and trained to self-administer oxycodone (0.03 mg/kg/infusion) under fixed ratio 1 (FR1), FR2, and FR5 schedules of reinforcement followed by a dose-response study to assess sensitivity to the reinforcing effects of oxycodone...
January 27, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28126283/fenton-process-on-single-and-mixture-components-of-phenothiazine-pharmaceuticals-assessment-of-intermediaries-fate-and-preliminary-ecotoxicity
#20
Marcelo L Wilde, Mandy Schneider, Klaus Kümmerer
Pharmaceuticals do not occur isolated in the environment but in multi-component mixtures and may exhibit antagonist, synergistic or additive behavior. Knowledge on this is still scarce. The situation is even more complicated if effluents or potable water is treated by oxidative processes or such transformations occur in the environment. Thus, determining the fate and effects of parent compounds, metabolites and transformation products (TPs) formed by transformation and degradation processes in the environment is needed...
January 23, 2017: Science of the Total Environment
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