Propylamines

丙胺
  • 文章类型: Journal Article
    科学文献几乎没有关于新的精神活性物质和设计药物的可靠数据,这使得很难评估有毒的血液水平和潜在的致命阈值。这里,我们报告了一种致命的共同中毒,涉及两种不常见的药物-α-甲基色胺(AMT)和5-(2-甲基氨基丙基)-苯并呋喃(5-MAPB),麻黄碱,和去甲麻黄碱.使用超高效液相色谱-串联质谱(UHPLC/MS-MS)定量AMT和5-MAPB,显示死后外周血中AMT4690ng/mL和5-MAPB101ng/mL的浓度。我们还回顾了文献,以帮助解释这些分子在死亡发生中的可能作用。
    The scientific literature contains little reliable data regarding new psychoactive substances and designer drugs, making it difficult to assess toxic blood levels and potentially lethal threshold. Here, we report a fatal co-intoxication involving two uncommon drugs ‒ alpha-methyltryptamine (AMT) and 5-(2-methylaminopropyl)-benzofuran (5-MAPB) ‒ combined with exposure to benzodiazepines, ephedrine, and norephedrine. AMT and 5-MAPB were quantified using ultra-high performance liquid chromatography coupled to tandem mass spectrometry (UHPLC/MS-MS), revealing concentrations of AMT 4690 ng/mL and 5-MAPB 101 ng/mL in postmortem peripheral blood. We additionally reviewed the literature to help interpret the likely roles of these molecules in the occurrence of death.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Systematic Review
    本研究旨在meta分析评估托莫西汀治疗儿童多动症的剂量-反应关系。
    我们系统地检索了评价托莫西汀治疗儿童多动症有效性的双盲随机安慰剂对照试验。搜索是在PubMed中进行的,科克伦图书馆,CINHAL,和ClinicalTrials.gov数据库,涵盖从成立到2023年1月20日的文章。此外,进行了剂量-反应荟萃分析.
    在本剂量-反应荟萃分析中,纳入12项双盲随机安慰剂对照试验,涉及2,250名患者。托莫西汀的疗效增加到1.4mg/kg的剂量,之后,它达到了一个高原。
    在此进行的托莫西汀对多动症儿童给药的首次剂量反应荟萃分析增强了食品和药物管理局和欧洲药品管理局剂量建议的稳健性。
    UNASSIGNED: The present study aimed to meta-analytically estimate the dose-response relationship of atomoxetine for treating children with ADHD.
    UNASSIGNED: We systematically searched double-blind randomized placebo-controlled trials that evaluated the effectiveness of atomoxetine for treating ADHD in children. The search was carried out in PubMed, Cochrane Library, CINHAL, and ClinicalTrials.gov databases, covering articles from their inception until January 20, 2023. In addition, a dose-response meta-analysis was conducted.
    UNASSIGNED: In this dose-response meta-analysis, 12 double-blind randomized placebo-controlled trials involving 2,250 patients were included. The efficacy of atomoxetine increased up to a dosage of 1.4 mg/kg, after which it reached a plateau.
    UNASSIGNED: The first dose-response meta-analysis of atomoxetine dosing for children with ADHD conducted here enhances the robustness of the Food and Drug Administration and the European Medicines Agency dose recommendations.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    表面功能化和生物受体固定是开发高灵敏度和选择性生物传感器的关键过程。在氧化物表面上使用3-氨基丙基三乙氧基硅烷(APTES)的硅烷化方法经常用于表面官能化,因为其有益的特性,例如其双官能性质和低成本。优化APTES层的沉积过程以获得单层对于具有稳定的表面和有效地固定生物受体至关重要。从而提高了生物传感器的可重复性和灵敏度。这篇综述概述了APTES沉积方法,分为液相和气相,以及在氧化物表面上创建稳定的APTES单层以用于生物传感应用的全面摘要和指南。介绍了APTES的简要说明,并讨论了APTES沉积方法及其前/后处理和表征结果。最后,简要描述了用于生物传感器的纳米颗粒上的APTES沉积方法。
    Surface functionalization and bioreceptor immobilization are critical processes in developing a highly sensitive and selective biosensor. The silanization process with 3-aminopropyltriethoxysilane (APTES) on oxide surfaces is frequently used for surface functionalization because of beneficial characteristics such as its bifunctional nature and low cost. Optimizing the deposition process of the APTES layer to obtain a monolayer is crucial to having a stable surface and effectively immobilizing the bioreceptors, which leads to the improved repeatability and sensitivity of the biosensor. This review provides an overview of APTES deposition methods, categorized into the solution-phase and vapor-phase, and a comprehensive summary and guide for creating stable APTES monolayers on oxide surfaces for biosensing applications. A brief explanation of APTES is introduced, and the APTES deposition methods with their pre/post-treatments and characterization results are discussed. Lastly, APTES deposition methods on nanoparticles used for biosensors are briefly described.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    背景:焦虑症是患有注意力缺陷多动障碍(ADHD)的儿童和青少年中最常见的合并症。虽然托莫西汀的作用,一种非兴奋剂药物,自二十年以来,在多动症症状的管理中已经确立,缺乏证据证明其在治疗患有ADHD的儿童和青少年焦虑症方面的有效性.
    目的:我们旨在提供以下见解:(1)托莫西汀在患有多动症和焦虑症的儿童和青少年中的比较疗效。(2)基于患者的焦虑症状严重程度的变化,父母\',和临床医生的评级,(3)耐受性和副作用。
    方法:我们搜索了PubMed,EMBASE,和PsycINFO的临床试验,探讨了托莫西汀对患有ADHD的儿童和青少年焦虑症状的疗效。系统回顾了所有已发表的文献。
    结果:我们纳入了四项研究,其中两个专门针对多动症和焦虑症的合并症。研究表明,在患有多动症的年轻患者中,托莫西汀并未加剧并实际上减轻了焦虑症状。
    结论:总体而言,托莫西汀在改善患有ADHD的儿童和青少年的焦虑症状方面显示出良好的疗效。需要进一步的研究来阐明托莫西汀对ADHD焦虑亚型的疗效。
    BACKGROUND: Anxiety disorders are among the most common comorbid mental disorders in children and adolescents with attention-deficit hyperactivity disorder (ADHD). While the role of atomoxetine, a non-stimulant medication, is well-established in the management of ADHD symptoms since two decades, there is a dearth of evidence regarding its efficacy in the management of anxiety disorders in children and adolescents with ADHD.
    OBJECTIVE: We aimed to provide insights into (1) the comparative efficacy of atomoxetine in children and adolescents with comorbid ADHD and anxiety disorders, (2) change in severity of anxiety symptoms based on patients\', parents\', and clinicians\' ratings, (3) tolerability and side effects.
    METHODS: We searched PubMed, EMBASE, and PsycINFO for clinical trials that addressed the efficacy of atomoxetine for anxiety symptoms in children and adolescents with ADHD. All published literature was systematically reviewed.
    RESULTS: We included four studies, out of which two specifically addressed comorbid ADHD and anxiety disorder. The studies suggested that atomoxetine did not exacerbate and in fact reduced anxiety symptoms in young patients with comorbid ADHD.
    CONCLUSIONS: Overall, atomoxetine demonstrates good efficacy in improving anxiety symptoms in children and adolescents with ADHD. Further studies are needed to shed light on atomoxetine\'s efficacy for anxiety subtypes in ADHD.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    Atomoxetine is a noradrenergic reuptake inhibitor prescribed for attention-deficit/hyperactivity disorder (ADHD) that first gained approval in the USA in 2002 and has been authorized in 97 countries worldwide. The aim of this paper is to comprehensively review publications that addressed one or more of seven major safety topics relevant to atomoxetine treatment of children and adolescents (aged ≥6 years) diagnosed with ADHD. While the review focuses on children and adolescents, publications in which data from patients aged >18 years and from 6 to 18 years were analyzed in the same dataset were included. Using a predefined search strategy, including agreement of two reviewers when selecting papers, reduced the potential for bias. Using this process, we identified 70 eligible papers (clinical trials, epidemiological studies, and case reports) across the seven topics. We also referred to the European Summary of Product Characteristics (SPC) and US label. We found 15 papers about suicidality, three about aggression/hostility, seven about psychosis/mania, six about seizures, seven about hepatic effects, 29 about cardiovascular effects, and 28 about growth and development. The main findings (i.e., those from the largest and most well-conducted studies/analyses) are as follows. A large register-based study of pediatric and adult patients (6818 received atomoxetine) calculated a hazard ratio of 0.96 for suicide-related events during treatment with atomoxetine, and a meta-analysis of 23 placebo-controlled studies (N = 3883), published in 2014, found no completed suicides and no statistically significant association between atomoxetine and suicidality. The frequency of aggression/hostility was not statistically significantly higher with atomoxetine, e.g., experienced by 1.6 % (N = 21/1308) of atomoxetine-treated patients versus 1.1 % (N = 9/806) of placebo-treated patients in one meta-analysis. Symptoms of psychosis and mania were mainly observed in patients with comorbid bipolar disorder/depression. Based on spontaneous reports, during a 2-year period when 2.233 million adult and pediatric patients were exposed to atomoxetine, the reporting rate for seizures was 8 per 100,000 patients. In the manufacturer\'s database, atomoxetine was a \"probable cause\" of three hepatic adverse events (AEs) (all reversible hepatitis), and 133 hepatic AEs had possible confounding factors and were \"possibly related\" to atomoxetine, during 4 years when atomoxetine exposure had reached about 4.3 million patients. Rare cases of severe liver injury are described in the US label and European SPC; a case requiring liver transplantation is described in the US label. In a comprehensive review of a clinical trials database (N = 8417 received atomoxetine), most pediatric patients experienced modest increases in heart rate and blood pressure, and 8-12 % experienced more pronounced changes (≥20 bpm, ≥15 to 20 mmHg). However, in three long-term analyses (≥2 years), blood pressure was within age norms, and few patients discontinued due to cardiovascular AEs. As described in the European SPC, QT interval prolongation is uncommon, e.g., in an open-label study, 1.4 % of 711 children and adolescents had prolonged QTc intervals (≥450 ms in males, ≥470 ms in females) that were not clinically significant at ≥3 years of treatment with atomoxetine. The European SPC warns about potential QT interval prolongation in patients with a personal or family history, or if atomoxetine is administered with other drugs that potentially affect the QT interval. Decreases in growth (weight and height gain) occurred and were greatest in patients of above average weight and height, but appeared to recover over 2-5 years of atomoxetine treatment. In conclusion, suicidality, aggression/hostility, psychosis, seizures, liver injuries, and prolonged QT interval are uncommon or rare in children and adolescents treated with atomoxetine, based on data from the predefined search and from the European SPC. Overall, the data that we assessed from our search do not suggest that associations exist between atomoxetine and suicidality or seizures. The data also suggest that an association may not exist between atomoxetine and aggression/hostility. While atomoxetine may affect the cardiovascular system, the data suggest these effects are not clinically significant in most patients. Reductions in growth appear to be reversible in the long term.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

    求助全文

  • 文章类型: Journal Article
    Atomoxetine was first licensed to treat attention-deficit/hyperactivity disorder (ADHD) in children and adolescents in the US in 2002. The aim of this paper is to comprehensively review subsequent publications addressing the efficacy of atomoxetine in 6- to 18-year-olds with ADHD. We identified 125 eligible papers using a predefined search strategy. Overall, these papers demonstrate that atomoxetine is an effective treatment for the core ADHD symptoms (effect sizes 0.6-1.3, vs. placebo, at 6-18 weeks), and improves functional outcomes and quality of life, in various pediatric populations with ADHD (i.e., males/females, patients with co-morbidities, children/adolescents, and with/without prior exposure to other ADHD medications). Initial responses to atomoxetine may be apparent within 1 week of treatment, but can take longer (median 23 days in a 6-week study; n=72). Responses often build gradually over time, and may not be robust until after 3 months. A pooled analysis of six randomized placebo-controlled trials (n=618) indicated that responses at 4 weeks may predict response at 6-9 weeks, although another pooled analysis of open-label data (n=338) suggests that the probability of a robust response to atomoxetine [≥40% decrease in ADHD-Rating Scale (ADHD-RS) scores] may continue to increase beyond 6-9 weeks. Atomoxetine may demonstrate similar efficacy to methylphenidate, particularly immediate-release methylphenidate, although randomized controlled trials are generally limited by short durations (3-12 weeks). In conclusion, notwithstanding these positive findings, before initiating treatment with atomoxetine, it is important that the clinician sets appropriate expectations for the patient and their family with regard to the likelihood of a gradual response, which often builds over time.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    OBJECTIVE: To assess the long-term safety of drugs for attention deficit hyperactivity disorder (ADHD).
    METHODS: A bibliographic search was performed in the MEDLINE, EMBASE and PsycINFO databases for prospective studies evaluating the incidence of adverse events (AEs) in children and adolescents treated for ADHD.
    RESULTS: A total of six prospective studies that monitored drug safety during therapy for at least 12 weeks were retrieved. The drugs studied were atomoxetine (two studies, 802 patients), osmotic-controlled released oral methylphenidate formulation (two studies, 512 patients), extended release formulation of mixed amphetamine salts (one study, 568 patients) and transdermal methylphenidate (one study, 326 patients). Heterogeneity was found in the duration of follow-up (ranging between 1 and 4 years) and in the way data were reported. The rate of treatment-related AEs ranged from 58% to 78%, and the rate of discontinuation due to AEs ranged from 8% to 25% of the children. Decreased appetite, insomnia, headache and abdominal pain were the most common AEs observed. Most AEs and cases of discontinuation occurred during the first few months of treatment.
    CONCLUSIONS: Few studies evaluated the long-term safety of drugs for ADHD. Heterogeneity in follow-up duration and in data reporting made comparing different studies and drugs difficult. A systematic monitoring of long-term safety is needed.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    这篇综述总结了药代动力学特征,药效学特性,常见的副作用,以及与托莫西汀(ATX)治疗典型发展中的儿童和成人多动症相关的临床优势和劣势。然后是迄今为止在发育障碍(DD)方面的临床研究,包括自闭症谱系障碍(ASD),进行了总结和回顾。在现有的11份相关报告中,只有两项是安慰剂对照的随机临床试验,两者都集中在单个DD群体(ASD)上。除一项试验外,所有试验均表明ATX可改善ADHD症状,尽管在没有安慰剂对照的情况下,很难判断报告的改善程度和有效性。ATX对同时发生的行为和认知症状的影响不那么一致。食欲降低,恶心,和易怒是最常见的不良事件报告儿童DD;临床医生应该意识到,和兴奋剂一样,与典型的发展中个体相比,DD患者的易怒似乎更常见。最初分开剂量,开始低于推荐的起始剂量,缓慢滴定可以预防或改善副作用。缓慢积累利益需要耐心。
    结论:ATX有望在DD中管理ADHD症状,但控制得当,迫切需要托莫西汀治疗智力障碍和ASD的随机临床试验。临床医生和研究人员应警惕ATX治疗引起的易怒。ATX对DD认知的影响实际上尚未研究。
    This review summarizes the pharmacokinetic characteristics, pharmacodynamic properties, common side effects, and clinical advantages and disadvantages associated with atomoxetine (ATX) treatment in typically developing children and adults with ADHD. Then the clinical research to date in developmental disabilities (DD), including autism spectrum disorders (ASD), is summarized and reviewed. Of the 11 relevant reports available, only two were placebo-controlled randomized clinical trials, and both focused on a single DD population (ASD). All trials but one indicated clinical improvement in ADHD symptoms with ATX, although it was difficult to judge the magnitude and validity of reported improvement in the absence of placebo controls. Effects of ATX on co-occurring behavioral and cognitive symptoms were much less consistent. Appetite decrease, nausea, and irritability were the most common adverse events reported among children with DD; clinicians should be aware that, as with stimulants, irritability appears to occur much more commonly in persons with DD than in typically developing individuals. Splitting the dose initially, starting below the recommended starting dose, and titrating slowly may prevent or ameliorate side effects. Patience is needed for the slow build-up of benefit.
    CONCLUSIONS: ATX holds promise for managing ADHD symptoms in DD, but properly controlled, randomized clinical trials of atomoxetine in intellectual disability and ASD are sorely needed. Clinicians and researchers should be vigilant for the emergence of irritability with ATX treatment. Effects of ATX on cognition in DD are virtually unstudied.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Pubmed)

  • 文章类型: Journal Article
    Smith, Waschbusch, Willoughby, and Evans (2000) reviewed a small treatment literature on ADHD in adolescents and concluded that methylphenidate stimulant medication was a well-established treatment and behavior therapy (BT) demonstrated preliminary efficacy. This review extends and updates the findings of the prior one based on the previous 15years of research. Studies published since 1999 were identified and coded using standard criteria and effect sizes were calculated where appropriate. Highlights of the last 15years of research include an expansion of pharmacological treatment options and developmentally appropriate psychosocial treatment packages for adolescents with ADHD. Additionally, nonstimulant medications (e.g., atomoxetine) are now approved for the treatment of ADHD in adolescence. The review concludes that medication and BT produce a similar range of therapeutic effects on the symptoms of adolescents with ADHD. However, results suggest that BT may produce greater overall benefits on measures of impairment. There was no evidence that cognitive enhancement trainings, such as working memory training or neurofeedback improved the functioning of adolescents with ADHD. Whether to use medication, BT, or their combination to treat an adolescent with ADHD is complicated and we provide evidence-informed guidelines for treatment selection. The reviewed evidence does not support current American Academy of Pediatrics and American Academy of Child and Adolescent Psychiatry professional guidelines, which state that stimulant medication is the preferred treatment for adolescents with ADHD. Recommendations for assessment, practice guidelines, and future research are discussed.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

  • 文章类型: Journal Article
    OBJECTIVE: To review the pathophysiology, etiology, and treatment of attention-deficit hyperactivity disorder (ADHD).
    METHODS: A literature search was conducted in PubMed and EMBASE using the terms attention deficit hyperactive disorder, ADHD, pathophysiology, etiology, and neurobiology. Limits applied were the following: published in the past 10 years (January 2003 to August 2013), humans, review, meta-analysis, and English language. These yielded 63 articles in PubMed and 74 in EMBASE. After removing duplicate/irrelevant articles, 86 articles and their relevant reference citations were reviewed.
    RESULTS: ADHD is a neurological disorder that affects children, but symptoms may persist into adulthood. Individuals suffering from this disorder exhibit hyperactivity, inattention, impulsivity, and problems in social interaction and academic performance. Medications used to treat ADHD such as methylphenidate, amphetamine, and atomoxetine indicate a dopamine/norepinephrine deficit as the neurochemical basis of ADHD, but the etiology is more complex. Moreover, these agents have poor adverse effect profiles and a multitude of drug interactions. Because these drugs are also dispensed to adults who may have concomitant conditions or medications, a pharmacist needs to be aware of these adverse events and drug interactions. This review, therefore, focuses on the pathophysiology, etiology, and treatment of ADHD and details the adverse effects and drug interaction profiles of the drugs used to treat it.
    CONCLUSIONS: Published research shows the benefit of drug therapy for ADHD in children, but given the poor adverse effect and drug interaction profiles, these must be dispensed with caution.
    导出

    更多引用

    收藏

    翻译标题摘要

    我要上传

       PDF(Sci-hub)

公众号