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Mitigation of aircraft noise-induced vascular dysfunction and oxidative stress by exercise, fasting, and pharmacological α1AMPK activation: molecular proof of a protective key role of endothelial α1AMPK against environmental noise exposure.

Environmental stressors such as traffic noise represent a global threat, accounting for 1.6 million healthy life years lost annually in Western Europe. Therefore, the noise-associated health side effects must be effectively prevented or mitigated. Non-pharmacological interventions such as physical activity or a balanced healthy diet are effective due to the activation of the adenosine monophosphate-activated protein kinase (α1AMPK). Here, we investigated for the first time in a murine model of aircraft noise-induced vascular dysfunction the potential protective role of α1AMPK activated via exercise, intermittent fasting, and pharmacological treatment. Wild-type (B6.Cg-Tg(Cdh5-cre)7Mlia/J) mice were exposed to aircraft noise [maximum sound pressure level of 85 dB(A), average sound pressure level of 72 dB(A)] for the last 4 days. The α1AMPK was stimulated by different protocols, including 5-aminoimidazole-4-carboxamide riboside application, voluntary exercise, and intermittent fasting. Four days of aircraft noise exposure produced significant endothelial dysfunction in wild-type mice aorta, mesenteric arteries, and retinal arterioles. This was associated with increased vascular oxidative stress and asymmetric dimethylarginine formation. The α1AMPK activation with all three approaches prevented endothelial dysfunction and vascular oxidative stress development, which was supported by RNA sequencing data. Endothelium-specific α1AMPK knockout markedly aggravated noise-induced vascular damage and caused a loss of mitigation effects by exercise or intermittent fasting. Our results demonstrate that endothelial-specific α1AMPK activation by pharmacological stimulation, exercise, and intermittent fasting effectively mitigates noise-induced cardiovascular damage. Future population-based studies need to clinically prove the concept of exercise/fasting-mediated mitigation of transportation noise-associated disease.

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Differential Impact of Brain Network Efficiency on Poststroke Motor and Attentional Deficits.

Most studies on stroke have been designed to examine one deficit in isolation; yet, survivors often have multiple deficits in different domains. While the mechanisms underlying multiple-domain deficits remain poorly understood, network-theoretical methods may open new avenues of understanding. Fifty subacute stroke patients (7±3days poststroke) underwent diffusion-weighted magnetic resonance imaging and a battery of clinical tests of motor and cognitive functions. We defined indices of impairment in strength, dexterity, and attention. We also computed imaging-based probabilistic tractography and whole-brain connectomes. To efficiently integrate inputs from different sources, brain networks rely on a rich-club of a few hub nodes. Lesions harm efficiency, particularly when they target the rich-club. Overlaying individual lesion masks onto the tractograms enabled us to split the connectomes into their affected and unaffected parts and associate them to impairment. We computed efficiency of the unaffected connectome and found it was more strongly correlated to impairment in strength, dexterity, and attention than efficiency of the total connectome. The magnitude of the correlation between efficiency and impairment followed the order attention>dexterity ≈ strength (strength: |r|=.03, P=0.02, dexterity: |r|=.30, P=0.05, attention: |r|=.55, P<0.001). Network weights associated with the rich-club were more strongly correlated to efficiency than non-rich-club weights. Attentional impairment is more sensitive to disruption of coordinated networks between brain regions than motor impairment, which is sensitive to disruption of localized networks. Providing more accurate reflections of actually functioning parts of the network enables the incorporation of information about the impact of brain lesions on connectomics contributing to a better understanding of underlying stroke mechanisms.

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The blackgrass genome reveals patterns of non-parallel evolution of polygenic herbicide resistance.

Globally, weedy plants are a major constraint to sustainable crop production. Much of the success of weeds rests with their ability to rapidly adapt in the face of human-mediated management of agroecosystems. Alopecurus myosuroides (blackgrass) is a widespread and impactful weed affecting agriculture in Europe. Here we report a chromosome-scale genome assembly of blackgrass and use this reference genome to explore the genomic/genetic basis of non-target site herbicide resistance (NTSR). Based on our analysis of F2 seed families derived from two distinct blackgrass populations with the same NTSR phenotype, we demonstrate that the trait is polygenic and evolves from standing genetic variation. We present evidence that selection for NTSR has signatures of both parallel and non-parallel evolution. There are parallel and non-parallel changes at the transcriptional level of several stress- and defence-responsive gene families. At the genomic level, however, the genetic loci underpinning NTSR are different (non-parallel) between seed families. We speculate that variation in the number, regulation and function of stress- and defence-related gene families enable weedy species to rapidly evolve NTSR via exaptation of genes within large multi-functional gene families. These results provide novel insights into the potential for, and nature of plant adaptation in rapidly changing environments.

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Winds of tapering, financial gravity and COVID-19

Real interest rates have fallen dramatically since the early 1980s. Economic theory states that lower real rates discourage savings while promoting spending. However, today, in the world economy, we face a global saving glut problem in which, even in negative real rates, economic agents keep saving. This situation leads to excess demand for safe assets (US Treasuries), lower bond yields, and higher equity valuations. Thus, the world economy has become more dependent on major economies, especially the United States. In this research, we aim to measure the dependency of the world economy on United States monetary policy. We called this new methodology “financial gravity” and tried to quantify the nature by using panel data analysis. We define monetary dependency (financial gravity) by US Investment flows and their reaction against International Reserves, Credit Default Spreads (CDS), and Foreign Exchange Rates. Our empirical findings support that financial gravity is positively related to international reserves and negatively related to Credit Default Swap Spreads (CDS) and Foreign Exchange rates. We also analyzed the COVID-19 period and found that pandemics positively contributed to world reserve accumulation due to economic lock-down measures, fiscal stimulus packages (unemployment benefits), and decreased global spending.

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209 Increased burden of headache in patients with migraine complicated by MOH: sub-group analysis BECOME study

ObjectiveTo evaluate the burden of headache in patients with chronic migraine complicated by medi- cation overuse headache (CM+MO) using patient-reported outcomes (PRO) and healthcare resource utilisation (HRU) questionnaires.MethodsBECOME was a prospective, non-interventional study conducted in 2 concurrent parts over 3 months across Europe and Israel. Part 1 assessed clinical characteristics of all patients with migraine visiting headache specialist centres over 3 months. Part 2 examined burden of disease in patients with≥1 prior prophylactic treatment failure (PPTF), ≥4 monthly migraine days (MMD). We assessed quality of life (QoL) in patients in Part 2 using PRO questionnaires.ResultsOf the 2419 patients (86.9% females; mean[SD] age 43.0[11.56] years) analysed in Part 2, 571 (23.6%) reported CM+MO. Patients with CM+MO reported lower functioning (mean[SD] EQ-5D utility scores 0.67[0.24] vs 0.78[0.21]), lower health status (EQ VAS scores 59.3[20.94] vs 69.8[19.48]), higher dis- ability (mMIDAS score 35.5[21.98] vs 21.9[17.39]) and greater proportion had grade IV disability (88.1% vs 80.1%) than those without MO.ConclusionsPatients with ≥1 PPTF reported severe burden of migraine irrespective of MO, but patients with MO had lower functioning and health status, greater severity in disability, and greater use of HRU than those without MO.pritpal.panesar@novartis.com

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Efficacy of Cognitive-Behavioral Therapy for the Prophylaxis of Migraine in Adults: A Three-Armed Randomized Controlled Trial.

BackgroundBehavioral approaches are central to the preventive treatment of migraine but empirical evidence regarding efficacy and effectiveness is still sparse. This study aimed to evaluate the efficacy of a newly developed migraine-specific, integrative cognitive-behavioral therapy program (miCBT) combining several approaches (trigger and stress management, coping with fear of attacks, relaxation training) by comparing it with a single behavioral approach (relaxation training, RLX) as an active control group and a waiting-list control group (WLC).MethodsIn a three-armed open-label randomized controlled trial, 121 adults with migraine were assigned to either miCBT, RLX or WLC. The outpatient group therapy (miCBT or RLX) consisted of seven sessions each 90 min. Participants who completed the WLC were subsequently randomized to one of the two treatment groups. Primary outcomes were headache days, headache-related disability, emotional distress, and self-efficacy. The baseline was compared to post-treatment, and followed by assessments 4- and 12-months post-treatment to compare miCBT and RLX.ResultsMixed-model analyses (intention-to-treat sample, 106 participants) showed significantly stronger pre-post improvements in self-efficacy (assessed by the Headache Management Self-Efficacy Scale, HMSE-G-SF) in both treatment groups compared to the WLC (mean difference at post; miCBT: 4.67 [0.55–8.78], p = 0.027; RLX: 4.42 [0.38 to 8.46], p = 0.032), whereas no other significant between-group differences were observed. The follow-up analyses revealed significant within-group improvements from baseline to 12-month follow-up in all four primary outcomes for both treatments. However, between-group effects (miCBT vs. RLX) were not significant at follow-up.ConclusionThe miCBT has no better treatment effects compared to RLX in migraine-prophylaxis. Both treatments effectively increase patients' self-efficacy.Trial RegistrationGerman Clinical Trials Register (www.drks.de; DRKS-ID: DRKS00011111).

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Burden of Migraine in Patients With Preventive Treatment Failure Attending European Headache Specialist Centers: Real-World Evidence From the BECOME Study.

IntroductionMigraine is consistently ranked as one of the most disabling neurological conditions in the world, often causing a substantial impairment of daily activities and quality of life. It also carries a high economic burden of direct and indirect healthcare costs. Patients with difficult-to-treat migraine often cycle through different preventive therapies, but real-world prospective evidence describing the burden of migraine in patients with prior preventive treatment failure (PPTF) in Europe is limited. In BECOME, we aimed to characterize and assess the prevalence and burden of migraine in patients with PPTF attending specialist headache centers in Europe and Israel. Furthermore, we assessed this burden in pre-specified subgroups based on the frequency of monthly migraine days (MMD) and number of PPTFs.MethodsBECOME was a prospective, non-interventional study conducted in two concurrent parts across 17 countries in Europe and Israel. In part 1, patients visiting the centers over a 3-month period were screened for frequency of PPTF, MMD, and other characteristics. In part 2, patients from part 1 with ≥ 1 PPTF and ≥ 4 MMD were enrolled, and impact of migraine on patient-reported outcomes, and healthcare resource utilization (HRU) were examined.ResultsIn part 1 (n = 20,837), 62.2% of patients reported ≥ 1 PPTF. In part 2 (n = 2419), 15.3% of patients reported ≥ 4 PPTF. In part 2, the migraine burden measured by the EuroQoL 5 dimensions 5 level (EQ-5D-5L) questionnaire indicated an impact of at least moderate severity in performing usual activities in 26.5% of patients, pain/discomfort in 51.2%, and 26.1% reported being at least moderately anxious/depressed. Most patients reported a severe impact on daily activities and disability due to migraine. Abnormal Hospital Anxiety and Depression subscale scores of ≥ 11 were observed in 29% (anxiety) and 19.8% (depression) of the population. In part 2, analysis of HRU showed 21.2% patients visited an emergency department and 8.4% were hospitalized for headache/migraine in the past year.ConclusionsThis study provides real-world evidence of the high personal, social, and HRU burden of migraine in Europe and Israel.Supplementary InformationThe online version contains supplementary material available at 10.1007/s40122-021-00331-3.

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Real-world Evidence Data on the Monoclonal Antibody Erenumab in Migraine Prevention: Perspectives of Treating Physicians in Germany

Abstract Background Erenumab, the first-in-class fully human monoclonal antibody targeting the calcitonin gene-related peptide receptor, was shown to be efficacious and safe for the prophylactic treatment of migraine in adults in randomized clinical trials. Large-scale, real-world evidence in multi-centre settings is still needed to confirm these results. Erenumab patient profiles outside clinical trials and physicians’ treatment patterns, as well as data from patients treated in Germany, a severely impacted population, are not published yet. MethodsTELESCOPE was a multi-centre survey gathering real-world data from 45 German headache centres between July 2019 and December 2019. The project consisted of two parts. In the first part, treating physicians shared their experiences on current erenumab treatment with regard to patient profiles, treatment patterns and treatment responses. In the second part, a retrospective chart review was conducted of 542 migraine patients treated with erenumab for at least three months. Treatment responses focused on various aspects of patients’ quality of life. ResultsThe analysis of 542 patients’ charts revealed that three-month treatment with erenumab significantly reduced monthly headaches, migraine and acute medication days. Furthermore, headache intensity and frequency were reduced in over 75 % and accompanying aura in 35 % of patients. The clinical global impression scale revealed a general improvement in 91 % of patients. According to the treating physicians’ professional judgement, 83 % of patients responded to erenumab and 80 % were satisfied with the treatment. Physicians evaluated restricted quality of life, the number of monthly migraine days and previous, prophylactic treatments as the main components of the current patient profile for monoclonal antibody recipients. Based on the assessment of physicians, erenumab reduced migraine symptoms in 65 % and increased quality of life in more than 75 % of their patients. ConclusionsTELESCOPE confirms positive treatment responses with erenumab shown in clinical trials in a real-world multi-centre setting. The results show consistently positive experiences of physicians utilizing erenumab in clinical practice and underline that therapy with this monoclonal antibody is effective in migraine patients, particular in those, who have failed several prophylactic therapies.

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Real-life use of onabotulinumtoxinA reduces healthcare resource utilization in individuals with chronic migraine: the REPOSE study

BackgroundChronic migraine (CM) is associated with substantial economic burden. Real-world data suggests that onabotulinumtoxinA treatment for CM reduces healthcare resource utilisation (HRU) and related costs.MethodsREPOSE was a 2-year prospective, multicentre, non-interventional, observational study to describe the real-world use of onabotulinumtoxinA in adult patients with CM. This analysis examined the impact of onabotulinumtoxinA on HRU. Patients received onabotulinumtoxinA treatment approximately every 12 weeks according to their physicians’ discretion, guided by the summary of product characteristics (SPC) and PREEMPT injection paradigm. HRU outcome measures were collected at baseline and all administration visits and included headache-related hospitalizations and healthcare professional (HCP) visits. Health economic data, including family doctor and specialist visits, inpatient treatment for headache, acupuncture, technical diagnostics, use of nonpharmacologic remedies, and work productivity were also collected for patients enrolled at German study centres.ResultsOverall, 641 patients were enrolled at 78 study centres across 7 countries (Germany, UK, Italy, Spain, Norway, Sweden, and Russia), 633 received ≥1 onabotulinumtoxinA dose, and 128 completed the 2-year study. Patients were, on average, aged 45 years, 85% were female, and 60% (n = 377) were from Germany. At the end of the 2-year observation period, significantly fewer patients reported headache-related hospitalizations (p < 0.02) and HCP visits (p < 0.001) within the past 3 months than in the 3 months before baseline. In the German population, reductions were observed across all health services at all follow-up visits compared with baseline. The percentage of patients who saw a family doctor decreased from 41.7% at baseline to 13.5% at administration visit 8 and visits to a medical specialist decreased from 61.7% to 5.2% of patients. Inpatient acute treatment and technical diagnostics declined from 6.4% and 19.7% of patients at baseline to 0.0% and 1.0% at administration 8, respectively. The use of nonpharmacologic remedies and medication for the acute treatment of migraine also decreased with continued onabotulinumtoxinA treatment. Work incapacity, disability, absenteeism, and impaired performance at school/work improved with onabotulinumtoxinA treatment for CM over the 2-year observation period.ConclusionsReal-world evidence from REPOSE demonstrates that onabotulinumtoxinA treatment is associated with decreased HRU and supports the long-term benefits associated with the use of onabotulinumtoxinA for CM in clinical practice.Trial registrationNCT01686581. Name of registry: ClinicalTrials.gov. URL of registry: Date of retrospective registration: September 18, 2012. Date of enrolment of first patient: July 23, 2012.

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Impact of a 12-week open-label placebo treatment on headache days in episodic and chronic migraine: a study protocol for a parallel-group, multicentre, randomised controlled trial

IntroductionMigraine is the most common neurological disorder and one of the major causes of years lived with disability. Its treatment (especially of chronic forms) is often challenging and accompanied with adverse effects. Although new therapeutic approaches have recently emerged (eg, calcitonin gene-related peptide antibodies), these are linked to strict prescribing guidelines and therefore limited to only a minority of patients. Recently, randomised controlled trials have demonstrated that open-label placebo treatments can lead to significant and clinically relevant improvements of chronic pain conditions.Methods and analysisThis multicentre, randomised controlled clinical trial following a parallel group between-subject design aims to systematically investigate the impact of a 12-week open-label placebo treatment on moderate to severe headache days (primary outcome) in patients with episodic and chronic migraine in addition to treatment as usual. Secondary outcomes comprise the number of migraine days, pain intensity, intake of acute medication, quality of life, disability, global impression of change, tolerability and a responder rate. To systematically address potential predictors of placebo responses in patients with migraine, this study assesses potential psychometric predictors, salivary cortisol and alpha-amylase awakening responses, catechol-o-methyltransferase Val158Met polymorphisms, as well as functional and structural brain connectivity (ie, resting state functional MRI, diffusion tensor imaging). The data analysis will be performed on basis of the general linear model considering repeated measures (mixed model).Ethics and disseminationThis protocol and all corresponding documents were approved with regard to their content and compliance with ethical regulations by the Ethics Committee of the Medical Faculty of the University Duisburg-Essen, Germany and the Ethics Committee of the Landesärztekammer Hessen. The results from this study will be actively disseminated through manuscript publications and conference presentations.Trial registration numberGerman Clinical Trials Register (DRKS00021259).

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