123 research outputs found
Brexit or Bremain ? Evidence from bubble analysis
We applied the Johansen-Ledoit-Sornette (JLS) model to detect possible
bubbles and crashes related to the Brexit/Bremain referendum scheduled for 23rd
June 2016. Our implementation includes an enhanced model calibration using
Genetic Algorithms. We selected a few historical financial series sensitive to
the Brexit/Bremain scenario, representative of multiple asset classes. We found
that equity and currency asset classes show no bubble signals, while rates,
credit and real estate show super-exponential behaviour and instabilities
typical of bubble regime. Our study suggests that, under the JLS model, equity
and currency markets do not expect crashes or sharp rises following the
referendum results. Instead, rates and credit markets consider the referendum a
risky event, expecting either a Bremain scenario or a Brexit scenario
edulcorated by central banks intervention. In the case of real estate, a crash
is expected, but its relationship with the referendum results is unclear
Can shared practices build a new city?
Contemporary living is increasingly marked by different kinds of associationisms, collective but not necessarily longlasting actions, and either little or very determined communalities. This article will discuss forms of living that reject individualism and shy away from communities. Indistinct forms, based on living "side by side, walking in step" which Bauman (2002) described as "a desperate need for networking"; and Sennett (2008) said was "the force of wandering emotions shifting erratically from one target to another". Characterised by values such as ecology, frugality, reciprocity and solidarity. We believe that the key issue is to understand whether these forms are capable, as they say they are, of metaphorically rebuilding the city. In other words, can they implement a different concept of urbanity and public space by adopting the role played in late capitalist cities by conflict, rationality, functionalism, and the market. To tackle the problem we must first understand how they affect three different issues: the first involves changes in the values assigned to living; the second, the new logic of spatial organisation; the third, the revision of the notion of public and its political consequences. In order to provide greater clarity, we will deal with these three issues by briefly referring to European case studies carried out by a group of town-planners and sociologists
Sarcopenia in the elderly: from clinical aspects to therapeutic options
Sarcopenia is a major contributor to the risk of physical frailty, functional decline, poor health-related quality of life and premature death in older people. Sarcopenia can be considered a geriatric syndrome. The term sarcopenia indicates the loss of muscle mass that accompanies aging. Muscle mass declines with aging process with differences between subjects in relation to the presence of chronic diseases, to lifestyles habits (mainly diet and physical activity), to cognitive status. Sarcopenia in the elderly is associated with poor health outcomes, such as falls, disability, loss of independence, and mortality; however, it is potentially treatable if recognized and intervened early. The prevalence of sarcopenia rates between 5% and 13% in community-dwelling older people aged 65 years and over, and is higher in those 80 years and older (20-25%). The cause of sarcopenia is generally thought to be multifactorial, with environmental causes, disease triggers, inflammatory pathway activation, and a large number of cellular and biochemical abnormalities. Resistance training and amino acid supplementation are a recommended practice for the prevention of sarcopenia. The essential elements for the management of the sarcopenic patient are the recognition of a condition of frailty, an accurate multidimensional geriatric assessment, with attention to cognitive problems, mood, functional problems, living conditions, using standardized instruments. Combining exercise with some pharmacological compounds such as β- Hydroxy-β-methylbutyrate (HMB) and dietary supplements (including proteins, aminoacids and vitamin D) may exert a beneficial effect on older adults thus influencing the progress to sarcopenia. The recommended daily amount of protein is greater for older people. Vitamin D and leucine enrichment seems mandatory in order to improve muscle mass and lowerextremity function among sarcopenic older adults. There are some evidences that collagen peptides in this setting might be even superior to whey protein in promoting muscle growth and increasing the mobility
"Delirium Day": a nationwide point prevalence study of delirium in older hospitalized patients using an easy standardized diagnostic tool
To date, delirium prevalence in adult acute hospital populations has been estimated generally from pooled findings of single-center studies and/or among specific patient populations. Furthermore, the number of participants in these studies has not exceeded a few hundred. To overcome these limitations, we have determined, in a multicenter study, the prevalence of delirium over a single day among a large population of patients admitted to acute and rehabilitation hospital wards in Italy
Cognitive reserve in granulin-related frontotemporal dementia: from preclinical to clinical stages
OBJECTIVE
Consistent with the cognitive reserve hypothesis, higher education and occupation attainments may help persons with neurodegenerative dementias to better withstand neuropathology before developing cognitive impairment. We tested here the cognitive reserve hypothesis in patients with frontotemporal dementia (FTD), with or without pathogenetic granulin mutations (GRN+ and GRN-), and in presymptomatic GRN mutation carriers (aGRN+).
METHODS
Education and occupation attainments were assessed and combined to define Reserve Index (RI) in 32 FTD patients, i.e. 12 GRN+ and 20 GRN-, and in 17 aGRN+. Changes in functional connectivity were estimated by resting state fMRI, focusing on the salience network (SN), executive network (EN) and bilateral frontoparietal networks (FPNs). Cognitive status was measured by FTD-modified Clinical Dementia Rating Scale.
RESULTS
In FTD patients higher level of premorbid cognitive reserve was associated with reduced connectivity within the SN and the EN. EN was more involved in FTD patients without GRN mutations, while SN was more affected in GRN pathology. In aGRN+, cognitive reserve was associated with reduced SN.
CONCLUSIONS
This study suggests that cognitive reserve modulates functional connectivity in patients with FTD, even in monogenic disease. In GRN inherited FTD, cognitive reserve mechanisms operate even in presymptomatic to clinical stages
The older patient with cardiovascular disease: background and clinical implications of the comprehensive geriatric assessment (CGA)
Radiological assessment of dementia: the Italian inter-society consensus for a practical and clinically oriented guide to image acquisition, evaluation, and reporting
Background: Radiological evaluation of dementia is expected to increase more and more in routine practice due to both the primary role of neuroimaging in the diagnostic pathway and the increasing incidence of the disease. Despite this, radiologists often do not follow a disease-oriented approach to image interpretation, for several reasons, leading to reports of limited value to clinicians. In our work, through an intersocietal consensus on the main mandatory knowledge about dementia, we proposed a disease-oriented protocol to optimize and standardize the acquisition/evaluation/interpretation and reporting of radiological images. Our main purpose is to provide a practical guideline for the radiologist to help increase the effectiveness of interdisciplinary dialogue and diagnostic accuracy in daily practice. Results: We defined key clinical and imaging features of the dementias (A), recommended MRI protocol (B), proposed a disease-oriented imaging evaluation and interpretation (C) and report (D) with a glimpse to future avenues (E). The proposed radiological practice is to systematically evaluate and score atrophy, white matter changes, microbleeds, small vessel disease, consider the use of quantitative measures using commercial software tools critically, and adopt a structured disease-oriented report. In the expanding field of cognitive disorders, the only effective assessment approach is the standardized disease-oriented one, which includes a multidisciplinary integration of the clinical picture, MRI, CSF and blood biomarkers and nuclear medicine
Incidence of young‐onset dementia in Italy: The Brescia register study
Introduction: The goal of the present work was to assess the incidence of dementia with onset before the age of 65 years (i.e., young-onset dementia [YOD]) and define the frequencies of young-onset Alzheimer's disease (AD), frontotemporal lobar degeneration (FTLD), and dementia with Lewy bodies (DLB) in the general population. Methods: The study was conducted from January 1, 2019 to December 31, 2019 in Brescia province (population: 1,268,455). During the study period, all new YOD cases (incident YOD) were counted, and all patients' records reviewed. The incidence was standardized to the Italian general population in 2019. Results: A total of 29 YOD patients were diagnosed. The age-sex standardized incidence rate was 4.58 (95% confidence interval, 3.07-6.58) per 100,000 person-years. No difference in incidence rate between YOD due to AD or FTLD (P = 0.83) and between sexes (P = 0.81) was observed. YOD incidence increased with age, reaching its peak after 60 years. Discussion: Presenting neurodegenerative YOD phenotypes encompasses both AD and FTLD. Improved knowledge on YOD epidemiology is essential to adequately plan and organize health services
Early identification of functional high-risk multiple myeloma patients after transplant: the predictive power of fat fraction and Response Assessment Category score in diffusion-weighted whole-body magnetic resonance imaging
Functional high-risk (FHR) multiple myeloma (MM) patients, defined as those with early relapse despite optimal initial therapy, represent an unmet clinical need. Diffusionweighted whole-body MRI (DW-MRI) is increasingly used in MM management due to its high sensitivity in assessing treatment response. The Myeloma Response Assessment and Diagnosis System (MY-RADS) established the Response Assessment Category (RAC), a 5-point scale ranging from complete response (RAC 1) to progressive disease (RAC 5), which independently stratifies patients with different outcomes after autologous stem cell transplantation (ASCT). The relative Fat Fraction (rFF), derived from DW-MRI, provides additional prognostic insights into bone marrow composition. This study aimed to evaluate whether the combined assessment of RAC and rFF could identify FHR MM patients at risk of early relapse, defined as progression within 18 months post-ASCT. Ninety-seven MM patients were retrospectively analyzed after ASCT, before maintenance, with a median follow-up of 47 months. An rFF threshold of 17.2% predicted early relapse with 83% sensitivity and 85% specificity. Patients with rFF >17.2% had significantly improved post-ASCT progression-free survival (PFS, median not reached vs. 13.7 months, HR 0.18; 95% CI 0.08–0.43) and overall survival (OS, 3-year rate: 96% vs. 62%, HR 0.12; 95% CI 0.03–0.45) compared to rFF ≤17.2%. Patients with RAC 1/rFF High had the best outcomes, while RAC ≥2/rFF Low had the worst prognosis (median PFS: NR vs. 12.3 months, HR 0.21; 95% CI 0.07–0.62). rFF complements RAC for response assessment after ASCT, enabling early identification of FHR patients with poor prognosis
Predictors of Care Home Admission and Survival Rate in Patients With Syndromes Associated With Frontotemporal Lobar Degeneration in Europe
Background and Objectives Data on care home admission and survival rates of patients with syndromes associated with frontotemporal lobar degeneration (FTLD) are limited. However, their estimation is essential to plan trials and assess the efficacy of intervention. Population-based registers provide unique samples for this estimate. The aim of this study was to assess care home admission rate, survival rate, and their predictors in incident patients with FTLD-associated syndromes from the European FRONTIERS register-based study. Methods We conducted a prospective longitudinal multinational observational registry study, considering incident patients with FTLD-associated syndromes diagnosed between June 1, 2018, and May 31, 2019, and followed for up to 5 years till May 31, 2023. We enrolled patients fulfilling diagnosis of the behavioral variant frontotemporal dementia (bvFTD), primary progressive aphasia (PPA), progressive supranuclear palsy (PSP) or corticobasal syndrome (CBS), and FTD with motor neuron disease (FTD-MND). Kaplan-Meier analysis and Cox multivariable regression models were used to assess care home admission and survival rates. The survival probability score (SPS) was computed based on independent predictors of survivorship. Results A total of 266 incident patients with FTLD were included (mean age ± SD = 66.7 ± 9.0; female = 41.4%). The median care home admission rate was 97 months (95% CIs 86–98) from disease onset and 57 months (95% CIs 56–58) from diagnosis. The median survival was 90 months (95% CIs 77–97) from disease onset and 49 months (95% CIs 44–58) from diagnosis. Survival from diagnosis was shorter in FTD-MND (hazard ratio [HR] 4.59, 95% CIs 2.49–8.76, p < 0.001) and PSP/CBS (HR 1.56, 95% CIs 1.01–2.42, p = 0.044) compared with bvFTD; no differences between PPA and bvFTD were found. The SPS proved high accuracy in predicting 1-year survival probability (area under the receiver operating characteristic curve = 0.789, 95% CIs 0.69–0.87), when defined by age, European area of residency, extrapyramidal symptoms, and MND at diagnosis. Discussion In FTLD-associated syndromes, survival rates differ according to clinical features and geography. The SPS was able to predict prognosis at individual patient level with an accuracy of;80% and may help to improve patient stratification in clinical trials. Future confirmatory studies considering different populations are needed.</p
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