144 research outputs found
Weathering the storm: Generating intersectional urban design understandings for winter cities
Taking an intersectional approach, this research explicates the unique manner in which spatial injustice is experienced in a winter city when an individual possesses the multiple disadvantaged identities of disability, gender, age, and class. Employing case study methodology and go-along interview methods, this research answers the question: how can the lived experience of an older, formerly homeless woman with mobility and mental health disabilities inform intersectional design recommendations for winter cities? The findings identify three priority areas for intersectional design in winter cities to facilitate inclusion, wellness, and resilience among those disadvantaged by disability, gender, age, and class. These areas are: components of the built environment requiring intersectional understanding of accessibility (sidewalks, public transit-access routes, building entrances, and public transit pick-up zones); the urban context of senior and affordable housing; and public transportation. This paper contributes to the literature by demonstrating that intersectional understandings of urban winter environments are potent knowledge towards transforming cities from ones that disable and marginalize, to ones that enable and empower.En adoptant une approche intersectionnelle, cette recherche explique la manière unique dont l’oppression socio-spatiale est vécue dans une ville d’hiver lorsqu’un individu possède les multiples identités défavorisées du handicap, du sexe, de l’âge et de la classe. En utilisant une méthodologie d’étude de cas et des méthodes d’entrevues, cette recherche répond à la question: comment l’expérience vécue d’une femme âgée, anciennement sans-abri, à mobilité réduite et souffrant de troubles mentaux, peut-elle éclairer les recommandations de conception inclusive pour les villes d’hiver? Les résultats suggèrent trois domaines prioritaires pour une conception inclusive dans les villes d’hiver: les zones cibles de l’environnement bâti nécessitant une attention accrue sur l’accessibilité (trottoirs, voies d’accès aux transports en commun, entrées des bâtiments et zones de ramassage des transports en commun); l’emplacement urbain des logements pour personnes âgées et abordables; et les transports publics. Cet article contribue à la littérature en démontrant que la compréhension intersectionnelle des environnements hivernaux urbains est une connaissance puissante pour transformer les villes de celles qui désactivent et marginalisent, à celles qui permettent et autonomisent
Bariatric surgery and brain health: A longitudinal observational study investigating the effect of surgery on cognitive function and gray matter volume
Dietary modifications leading to weight loss have been suggested as a means to improve brain health. In morbid obesity, bariatric surgery (BARS)—including different procedures, such as vertical sleeve gastrectomy (VSG), gastric banding (GB), or Roux-en-Y gastric bypass (RYGB) surgery—is performed to induce rapid weight loss. Combining reduced food intake and malabsorption of nutrients, RYGB might be most effective, but requires life-long follow-up treatment. Here, we tested 40 patients before and six months after surgery (BARS group) using a neuropsychological test battery and compared them with a waiting list control group. Subsamples of both groups underwent structural MRI and were examined for differences between surgical procedures. No substantial differences between BARS and control group emerged with regard to cognition. However, larger gray matter volume in fronto-temporal brain areas accompanied by smaller volume in the ventral striatum was seen in the BARS group compared to controls. RYGB patients compared to patients with restrictive treatment alone (VSG/GB) had higher weight loss, but did not benefit more in cognitive outcomes. In sum, the data of our study suggest that BARS might lead to brain structure reorganization at long-term follow-up, while the type of surgical procedure does not differentially modulate cognitive performance
Functional Characterisation of Alpha-Galactosidase A Mutations as a Basis for a New Classification System in Fabry Disease
This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.The study has been supported partially by an unrestricted scientific grant from Shire Human Genetic Therapies (Germany
A COMPARISON OF THE ALCOHOL USE DISORDER IDENTIFICATION TEST (AUDIT) IN GENERAL POPULATION SURVEYS IN NINE EUROPEAN COUNTRIES
Aims: This study explored the suitability of the Alcohol Use Disorder Identification Test (AUDIT) for cross-national comparable estimates of problem drinking in general populations. On the item level the focus is on responsiveness to cross-national and gender differences. For the set of items the focus is on intercorrelations between items, indicating to what extent the AUDIT constitutes a scale. Methods: General population surveys from nine European countries were included. Cross-tabulations were used to analyse cross-national and gender differences in scores on the items. Reliability analysis was used to analyse intercorrelations between the items. Results: The items ‘blackouts' (men and women) and ‘guilt and remorse' (women) are the most frequently reported consequences. Gender differences tended to be smaller for ‘guilt and remorse' and ‘concern of others', and largest for ‘morning drinking'. The reliability analysis shows that in eight of the nine countries frequency of drinking lowers the alpha. Injury and concern of others lead to a lower internal consistency in three countries. Conclusions: There was sufficient variation between countries in the pattern of responses and variation in gender differences to conclude that the set of consequence items was responsive to national and gender differences in problem drinking. Frequency of drinking was not a good indicator of problem drinking. The country differences in item total correlations of consequences might be due to differences in how these items are interpreted. Decisions on which items to include in an instrument to allow comparison of estimates of problem drinking cross-nationally require studies on how these items are interpreted in general populations of different countrie
Impact of Resveratrol on Glucose Control, Hippocampal Structure and Connectivity, and Memory Performance in Patients with Mild Cognitive Impairment
In healthy older adults, resveratrol supplementation has been shown to improve long-term glucose control, resting-state functional connectivity (RSFC) of the hippocampus, and memory function. Here, we aimed to investigate if these beneficial effects extend to individuals at high-risk for dementia, i.e., patients with mild cognitive impairment (MCI). In a randomized, double-blind interventional study, 40 well-characterized patients with MCI (21 females; 50–80 years) completed 26 weeks of resveratrol (200 mg/d; n = 18) or placebo (1,015 mg/d olive oil; n = 22) intake. Serum levels of glucose, glycated hemoglobin A1c and insulin were determined before and after intervention. Moreover, cerebral magnetic resonance imaging (MRI) (3T) (n = 14 vs. 16) was conducted to analyze hippocampus volume, microstructure and RSFC, and neuropsychological testing was conducted to assess learning and memory (primary endpoint) at both time points. In comparison to the control group, resveratrol supplementation resulted in lower glycated hemoglobin A1c concentration with a moderate effect size (ANOVARM p = 0.059, Cohen's d = 0.66), higher RSFC between right anterior hippocampus and right angular cortex (p < 0.001), and led to a moderate preservation of left anterior hippocampus volume (ANOVARM p = 0.061, Cohen's d = 0.68). No significant differences in memory performance emerged between groups. This proof-of-concept study indicates for the first-time that resveratrol intake may reduce glycated hemoglobin A1c, preserves hippocampus volume, and improves hippocampus RSFC in at-risk patients for dementia. Larger trials with longer intervention time should now determine if these benefits can be validated and extended to cognitive function
Vascular signal transducer and activator of transcription-3 promotes angiogenesis and neuroplasticity long-term after stroke
BACKGROUND: Poststroke angiogenesis contributes to long-term recovery after stroke. Signal transducer and activator of transcription-3 (Stat3) is a key regulator for various inflammatory signals and angiogenesis. It was the aim of this study to determine its function in poststroke outcome. METHODS AND RESULTS: We generated a tamoxifen-inducible and endothelial-specific Stat3 knockout mouse model by crossbreeding Stat3(floxed/KO) and Tie2-Cre(ERT2) mice. Cerebral ischemia was induced by 30 minutes of middle cerebral artery occlusion. We demonstrated that endothelial Stat3 ablation did not alter lesion size 2 days after ischemia but did worsen functional outcome at 14 days and increase lesion size at 28 days. At this late time point vascular Stat3 expression and phosphorylation were still increased in wild-type mice. Gene array analysis of a CD31-enriched cell population of the neurovascular niche showed that endothelial Stat3 ablation led to a shift toward an antiangiogenic and axon growth-inhibiting micromilieu after stroke, with an increased expression of Adamts9. Remodeling and glycosylation of the extracellular matrix and microglia proliferation were increased, whereas angiogenesis was reduced. CONCLUSIONS: Endothelial Stat3 regulates angiogenesis, axon growth, and extracellular matrix remodeling and is essential for long-term recovery after stroke. It might serve as a potent target for stroke treatment after the acute phase by fostering angiogenesis and neuroregeneration
Clinical decision-making on spinal cord injury-associated pneumonia: a nationwide survey in Germany
Study design: Survey study.
Objectives: Spinal cord injury (SCI)-associated pneumonia (SCI-AP) is associated with poor functional recovery and a major cause of death after SCI. Better tackling SCI-AP requires a common understanding on how SCI-AP is defined. This survey examines clinical algorithms relevant for diagnosis and treatment of SCI-AP.
Setting: All departments for SCI-care in Germany.
Methods: The clinical decision-making on SCI-AP and the utility of the Centers for Disease Control and Prevention (CDC) criteria for diagnosis of ‘clinically defined pneumonia’ were assessed by means of a standardized questionnaire including eight case vignettes of suspected SCI-AP. The diagnostic decisions based on the case information were analysed using classification and regression trees (CART).
Results: The majority of responding departments were aware of the CDC-criteria (88%). In the clinical vignettes, 38–81% of the departments diagnosed SCI-AP in accordance with the CDC-criteria and 7–41% diagnosed SCI-AP in deviation from the CDC-criteria. The diagnostic agreement was not associated with the availability of standard operating procedures for SCI-AP management in the departments. CART analysis identified radiological findings, fever, and worsened gas exchange as most important for the decision on SCI-AP. Frequently requested supplementary diagnostics were microbiological analyses, C-reactive protein, and procalcitonin. For empirical antibiotic therapy, the departments used (acyl-)aminopenicillins/β-lactamase inhibitors, cephalosporins, or combinations of (acyl-)aminopenicillins/β-lactamase inhibitors with fluoroquinolones or carbapenems.
Conclusions: This survey reveals a diagnostic ambiguity regarding SCI-AP despite the awareness of CDC-criteria and established SOPs. Heterogeneous clinical practice is encouraging the development of disease-specific guidelines for diagnosis and management of SCI-AP
Association of age with the timing of acute spine surgery–effects on neurological outcome after traumatic spinal cord injury
Purpose: To investigate the association of age with delay in spine surgery and the effects on neurological outcome after traumatic spinal cord injury (SCI).
Methods: Ambispective cohort study (2011-2017) in n = 213 patients consecutively enrolled in a Level I trauma center with SCI care in a metropolitan region in Germany. Age-related differences in the injury to surgery interval and conditions associated with its delay (> 12 h after SCI) were explored using age categories or continuous variables and natural cubic splines. Effects of delayed surgery or age with outcome were analyzed using multiple logistic regression.
Results: The median age of the study population was 58.8 years (42.0-74.6 IQR). Older age (>= 75y) was associated with a prolonged injury to surgery interval of 22.8 h (7.2-121.3) compared to 6.6 h (4.4-47.9) in younger patients ( 60 h = 40y 5-20% probability).
Conclusion: Older patient age complexifies surgical SCI care and research. Tackling secondary referral to Level I trauma centers and delayed spine surgery imposes as tangible opportunity to improve the outcome of older SCI patients
Clinical efficacy and satisfaction of a digital wheeze detector in a multicentre randomised controlled trial: the WheezeScan study.
INTRODUCTION: Wheezing is common in preschool children and its clinical assessment often challenging for caretakers. This study aims to evaluate the impact of a novel digital wheeze detector (WheezeScan™) on disease control in a home care setting. METHODS: A multicentre randomised open-label controlled trial was conducted in Berlin, Istanbul and London. Participants aged 4-84 months with a doctor's diagnosis of recurrent wheezing in the past 12 months were included. While the control group followed usual care, the intervention group received the WheezeScan™ for at-home use for 120 days. Parents completed questionnaires regarding their child's respiratory symptoms, disease-related and parental quality of life, and caretaker self-efficacy at baseline (T0), 90 days (T1) and 4 months (T2). RESULTS: A total of 167 children, with a mean±sd age of 3.2±1.6 years, were enrolled in the study (intervention group n=87; control group n=80). There was no statistically significant difference in wheeze control assessed by TRACK (mean difference 3.8, 95% CI -2.3-9.9; p=0.2) at T1 between treatment groups (primary outcome). Children's and parental quality of life and parental self-efficacy were comparable between both groups at T1. The evaluation of device usability and perception showed that parents found it useful. CONCLUSION: In the current study population, the wheeze detector did not show significant impact on the home management of preschool wheezing. Hence, further research is needed to better understand how the perception and usage behaviour may influence the clinical impact of a digital support
Transcranial direct current stimulation to enhance training effectiveness in chronic post-stroke aphasia: A randomized controlled trial protocol
Background. Intensive speech-language therapy (SLT) can promote recovery from chronic post-stroke aphasia, a major consequence of stroke. However, effect sizes of intensive SLT are moderate, potentially reflecting a physiological limit of training-induced progress. Transcranial direct current stimulation (tDCS) is an easy-to-use, well-tolerated and low-cost approach that may enhance effectiveness of intensive SLT. In a recent phase-II randomized controlled trial, 26 individuals with chronic post-stroke aphasia received intensive SLT combined with anodal-tDCS of the left primary motor cortex (M1), resulting in improved naming and proxy-rated communication ability, with medium-to-large effect sizes. Aims. The proposed protocol seeks to establish the incremental benefit from anodal-tDCS of M1 in a phase-III randomized controlled trial with adequate power, ecologically valid outcomes, and evidence-based SLT. Methods. The planned study is a prospective randomized placebo-controlled (using sham-tDCS), parallel-group, double-blind, multi-center, phase-III superiority trial. 130 individuals with aphasia at least six months post-stroke will be recruited in more than 18 in- and outpatient rehabilitation centers. Outcomes. The primary outcome focuses on communication ability in chronic post-stroke aphasia, as revealed by changes on the Amsterdam-Nijmegen Everyday Language Test (A-scale; primary endpoint: 6-month follow-up; secondary endpoints: immediately after treatment, and 12-month follow-up). Secondary outcomes include measures assessing linguistic-executive skills, attention, memory, emotional well-being, quality of life, health economic costs, and adverse events (endpoints: 6-month follow up, immediately after treatment, and 12-month follow-up). Discussion. Positive results will increase the quality of life for persons with aphasia and their families while reducing societal costs. After trial completion, a workshop with relevant stakeholders will ensure transfer into best-practice guidelines and successful integration within clinical routine
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