29 research outputs found

    Uptake of Precursor and Synthesis of Transmitter in a Histaminergic Photoreceptor

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    As a first step in understanding how the supply of the neurotransmitter histamine is maintained in a photoreceptor, we followed the uptake and metabolism of the immediate precursor of histamine, histidine.

    Effects of Anacetrapib in Patients with Atherosclerotic Vascular Disease

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    BACKGROUND: Patients with atherosclerotic vascular disease remain at high risk for cardiovascular events despite effective statin-based treatment of low-density lipoprotein (LDL) cholesterol levels. The inhibition of cholesteryl ester transfer protein (CETP) by anacetrapib reduces LDL cholesterol levels and increases high-density lipoprotein (HDL) cholesterol levels. However, trials of other CETP inhibitors have shown neutral or adverse effects on cardiovascular outcomes. METHODS: We conducted a randomized, double-blind, placebo-controlled trial involving 30,449 adults with atherosclerotic vascular disease who were receiving intensive atorvastatin therapy and who had a mean LDL cholesterol level of 61 mg per deciliter (1.58 mmol per liter), a mean non-HDL cholesterol level of 92 mg per deciliter (2.38 mmol per liter), and a mean HDL cholesterol level of 40 mg per deciliter (1.03 mmol per liter). The patients were assigned to receive either 100 mg of anacetrapib once daily (15,225 patients) or matching placebo (15,224 patients). The primary outcome was the first major coronary event, a composite of coronary death, myocardial infarction, or coronary revascularization. RESULTS: During the median follow-up period of 4.1 years, the primary outcome occurred in significantly fewer patients in the anacetrapib group than in the placebo group (1640 of 15,225 patients [10.8%] vs. 1803 of 15,224 patients [11.8%]; rate ratio, 0.91; 95% confidence interval, 0.85 to 0.97; P=0.004). The relative difference in risk was similar across multiple prespecified subgroups. At the trial midpoint, the mean level of HDL cholesterol was higher by 43 mg per deciliter (1.12 mmol per liter) in the anacetrapib group than in the placebo group (a relative difference of 104%), and the mean level of non-HDL cholesterol was lower by 17 mg per deciliter (0.44 mmol per liter), a relative difference of -18%. There were no significant between-group differences in the risk of death, cancer, or other serious adverse events. CONCLUSIONS: Among patients with atherosclerotic vascular disease who were receiving intensive statin therapy, the use of anacetrapib resulted in a lower incidence of major coronary events than the use of placebo. (Funded by Merck and others; Current Controlled Trials number, ISRCTN48678192 ; ClinicalTrials.gov number, NCT01252953 ; and EudraCT number, 2010-023467-18 .)

    Generic platform for manufacturing execution system functions in knowledge-driven manufacturing systems

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    Information technologies grow rapidly nowadays with the advance and extension of computing capabilities. This growth affects several fields, which consume these technologies. Industrial Automation is not an exception. This publication describes a general and flexible architecture for implementing Manufacturing Execution System (MES) function, which can be deployed in multiple industrial cases. These features are achieved by combining the flexibility of knowledge-driven systems with the vendor-independent property of RESTful web services. With deployment of this solution, MES functions may gain more versatility and independency. This research work is a continuation of the development of the OKD-MES (Open Knowledge-Driven Manufacturing Execution System) framework during the execution of the eScop project. The OKD-MES framework consists on a semantic-based solution for controlling and enhancing the flexibility and re-configurability of MES. In such scope, this research presents MES functions architecture that might be implemented in the OKD-MES framework in order to increase the flexibility of event-driven manufacturing systems

    Sex, Condoms and Sexually Transmissible Infections: A Qualitative Study of Sexual Health in Young Australian Men

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    Young males have a key role in shaping contraceptive use in a sexual relationship, yet often remain the invisible partner in safe sex promotion. This article describes a conceptual model of STI risk and condom use based on the perceptions and experiences of condom use in a group of young Australian males. An explorative descriptive design was used to conceptualize participants’ condom use histories into an organized description of behavior. Forty-two semi-structured interviews were conducted with a purposive sample of males aged 15 to 25 years over an 18 month period. A sequential analytical process of data immersion, coding, and category generation was used to identify personal meanings, motivations, and contextual factors associated with condom use and non-use. Three primary discourses associated with young males’ perceptions of STI risk and responding approach to condom use constructed personal commitment to sexual safety as dynamic, context-dependent, and outcome-driven (pregnancy versus STIs as the primary motivator of condom use). A regretful discourse associated with experiences of, or suspected unwanted outcomes, also emerged through changes in risk appraisals and safe sex intentions and behavior. Interventions to increase condom use should go beyond the traditional focus on risky behavior and disease prevention frameworks by addressing the contextual influences on personal risk appraisals and deliver innovative messages to reduce negative social meanings associated with condom use
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