180 research outputs found
MSI and EBV Positive Gastric Cancer's Subgroups and Their Link With Novel Immunotherapy
Gastric cancers have been historically classified based on histomorphologic features. The Cancer Genome Atlas network reported the comprehensive identification of genetic alterations associated with gastric cancer, identifying four distinct subtypes- Epstein-Barr virus (EBV)-positive, microsatellite-unstable/instability (MSI), genomically stable and chromosomal instability. In particular, EBV-positive and MSI gastric cancers seem responsive to novel immunotherapies drugs. The aim of this review is to describe MSI and EBV positive gastric cancer's subgroups and their relationship with novel immunotherapy.</p
Direct 3D imaging through spatial coherence of light
Wide-field imaging is widely adopted due to its fast acquisition,
cost-effectiveness and ease of use. Its extension to direct volumetric
applications, however, is burdened by the trade-off between resolution and
depth of field (DOF), dictated by the numerical aperture of the system. We
demonstrate that such trade-off is not intrinsic to wide-field imaging, but
stems from the spatial incoherence of light: images obtained through spatially
coherent illumination are shown to have resolution and DOF independent of the
numerical aperture. This fundamental discovery enabled us to demonstrate an
optimal combination of coherent resolution-DOF enhancement and incoherent
tomographic sectioning for scanning-free, wide-field 3D microscopy on a
multicolor histological section.Comment: 17 pages, 6 figures. Supplemental document available upon request to
the authors. Submitted to Lasers and Photonics Review
The unusual association of Graves' disease, chronic spontaneous urticaria, and premature ovarian failure: report of a case and HLA haplotype characterization
Chronic spontaneous urticaria (CSU), defined as the occurrence of spontaneous wheals for more than six weeks, has been associated with autoimmune diseases. Herein, we report the unusual association of CSU, Graves' disease, and premature ovarian failure. Human leukocyte antigen (HLA) studies were performed. A 36-year-old woman presented symptoms and signs of hyperthyroidism for three months. In the same period, the patient complained of widespread urticarial wheals, intensely itchy, and poorly responsive to therapy with antihistaminic agents. Hyperthyroidism was confirmed biochemically, and treatment with methimazole was started. As hyperthyroidism improved, a marked improvement in her urticaria was also observed. However, the patient continued to complain of amenorrhea. Endocrine evaluation, at the age 38, was consistent with premature ovarian failure. This is the first report of coexistence of GD, CSU, and POF. The genetic background of such unusual association is a specific combination of HLA
One health adoption within prevention, preparedness and response to health threats. Highlights from a scoping review
Introduction: As the COVID-19 pandemic has demonstrated, the complexity of factors involved in the emergence of health threats requires a holistic One Health (OH) approach to enhance the effectiveness of prevention, preparedness, and response (PPR) strategies. Therefore, we conducted a scoping review to explore how the OH approach has been adopted in the context of PPR strategies to health threats, and the challenges and benefits deriving from its integration.
Methods: We defined the research questions and a strategy to guide the peer-reviewed and grey literature search to identify relevant articles and documents (identification). We assessed them for eligibility according to predefined criteria (screening) and finally included the ones that answered the research questions (inclusion). We performed a descriptive and thematic analysis of the results.
Results: A total of 138 records were included in the review (57 from the peer-reviewed literature and 81 from the grey literature). The OH approach was mainly adopted in prevention strategies, particularly within the governance area. Human and animal health were the most integrated disciplines in the OH approach, while environmental and social sciences were the less integrated. The most targeted threats were antimicrobial resistance and zoonoses, with the African region being the most represented. Conducive factors for the adoption of OH PPR strategies were identified in resolutions and guidance emanating from international organisations.
Discussion: The global governance of OH should utilise conducive factors, such as international resolutions and guidance, to enhance the adoption of multisectoral and multi-actor PPR strategies, that focus on national and international priorities and neglected threats, such as environmental hazards and pandemic risk. Integrated frameworks and metrics for the implementation and evaluation of OH PPR strategies need to be consolidated to contribute to the growing body of evidence supporting the adoption of the OH approach
Exploring the Interplay between Complex Post-Traumatic Stress Disorder and Obsessive-Compulsive Disorder Severity: Implications for Clinical Practice
Background and Objectives: Traumatic events adversely affect the clinical course of obsessive-compulsive disorder (OCD). Our study explores the correlation between prolonged interpersonal trauma and the severity of symptoms related to OCD and anxiety disorders. Materials and Methods: The study follows a cross-sectional and observational design, employing the International Trauma Questionnaire (ITQ) to examine areas linked to interpersonal trauma, the Hamilton Anxiety Rating Scale (HAM-A), and the Yale-Brown Obsessive-Compulsive Scale (Y-BOCS) to assess anxious and obsessive-compulsive symptoms, respectively. Descriptive analysis, analysis of variance (ANOVA), and logistic regression analyses were conducted. Results: We recruited 107 OCD-diagnosed patients, categorizing them into subgroups based on the presence or absence of complex post-traumatic stress disorder (cPTSD). The ANOVA revealed statistically significant differences between the two groups in the onset age of OCD (p = 0.083), psychiatric familial history (p = 0.023), HAM-A, and Y-BOCS (p < 0.0001). Logistic regression indicated a statistically significant association between the presence of cPTSD and Y-BOCS scores (p < 0.0001). Conclusions: The coexistence of cPTSD in OCD exacerbates obsessive-compulsive symptoms and increases the burden of anxiety. Further advancements in this field are crucial for mitigating the impact of early trauma on the trajectory of OCD and associated anxious symptoms
Alternative sources of neurons and glia from somatic stem cells.
Stem cell populations have been shown to be extremely versatile: they can generate differentiated cells specific to the tissue in which they reside and descendents that are of different germ layer origin. This raises the possibility of obtaining neuronal cells from new biological source of the same adult human subjects. In this study, we found that epidermal growth factor (EGF) and basic fibroblast growth factor (bFGF) cooperated to induce the proliferation, self-renewal, and expansion of neural stem cell-like population isolated from several newborn and adult mouse tissues: muscle and hematopoietic tissues. This population, in both primary culture and secondary expanded clones, formed spheres of undifferentiated cells that were induced to differentiate into neurons, astrocytes, and oligodendrocytes. Brain engraftment of the somatic-derived neural stem cells generated neuronal phenotypes, demonstrating the great plasticity of these cells with potential clinical application
Italian nursing students' attitudes towards care of the dying patient: A multi-center descriptive study
Background: International literature reports that nursing students feel unprepared when facing patients and families within dying care. They consider their curricula inadequate in teaching end-of-life care and promoting the attitudes required to care for dying patients. Findings of recent studies exploring nursing students' attitudes towards care of the dying patient are often contradictory. Objectives: To explore Italian nursing students' attitudes towards caring for dying patients. Design: A multicenter cross-sectional study was conducted. Settings: The Bachelor's Degree in Nursing courses of four Universities of the Lazio Region. Participants: The sample included 1193 students. Methods: Data were collected between September 2017 and March 2018 using the Italian version of FATCOD-B-I. The differences between the mean scores were compared through t-test or ANOVA. Associations between scores and participant characteristics were evaluated through generalized linear regression. Results: The mean score of FATCOD-B-I was 115.3 (SD = 9.1). Higher scores were significantly associated with training in palliative care (p < 0.0001) and experience with terminally ill patients (p < 0.0001). Students manifested more negative attitudes when they perceived patients losing hope of recovering, and patient's family members interfering with health professionals' work. Uncertainties emerged around knowledge of opioid drugs, decision-making, concepts of death and dying, management of mourning, and relational aspects of patient care. Conclusions: Italian nursing students seem to have more positive attitudes towards care of dying patients than most other countries. They believe that caring for a terminal patient is a formative, useful experience but they do not feel adequately prepared in practice. Deeper palliative care education, integrated with practical training, would prepare students better, enabling them to discover their own human and professional capacity to relieve suffering
A multi-layer mean-field model of the cerebellum embedding microstructure and population-specific dynamics
Mean-field (MF) models are computational formalism used to summarize in a few statistical parameters the salient biophysical properties of an inter-wired neuronal network. Their formalism normally incorporates different types of neurons and synapses along with their topological organization. MFs are crucial to efficiently implement the computational modules of large-scale models of brain function, maintaining the specificity of local cortical microcircuits. While MFs have been generated for the isocortex, they are still missing for other parts of the brain. Here we have designed and simulated a multi-layer MF of the cerebellar microcircuit (including Granule Cells, Golgi Cells, Molecular Layer Interneurons, and Purkinje Cells) and validated it against experimental data and the corresponding spiking neural network (SNN) microcircuit model. The cerebellar MF was built using a system of equations, where properties of neuronal populations and topological parameters are embedded in inter-dependent transfer functions. The model time constant was optimised using local field potentials recorded experimentally from acute mouse cerebellar slices as a template. The MF reproduced the average dynamics of different neuronal populations in response to various input patterns and predicted the modulation of the Purkinje Cells firing depending on cortical plasticity, which drives learning in associative tasks, and the level of feedforward inhibition. The cerebellar MF provides a computationally efficient tool for future investigations of the causal relationship between microscopic neuronal properties and ensemble brain activity in virtual brain models addressing both physiological and pathological conditions
La Prevalenza del Dolore Cronico Non Oncologico nell'Adulto e Patologie Associate: una revisione narrativa della letteratura
Il dolore cronico non oncologico rappresenta un problema sanitario sottostimato dal punto di vista epidemiologico ed in termini di salute pubblica. Esso è una malattia in senso stretto, e rappresenta una delle maggiori motivazioni per cui i soggetti si rivolgono ai servizi sanitari. La grandezza del fenomeno si esprime in termini di sofferenza umana e di costi sociali. L'obiettivo di questa revisione è quello di identificare le cause e la prevalenza del dolore cronico non oncologico nei soggetti adulti. E' stata realizzata una revisione della letteratura dal 1998 al 2012 utilizzando le emeroteche virtuali partendo dalle banche dati (Pub-Med, CINHAL, Cochrane). È stata effettuata una revisione narrativa degli articoli ottenuti. Sono stati esclusi articoli riguardanti cefalee, fasce di etí pediatriche e geriatriche, oncologici e articoli specifici per patologia. Gli studi ottenuti sono stati classificati per anno, autore campione, metodi, fasce di etí e definizione di dolore. Sono stati selezionati 7 articoli. Questi studi epidemiologici, realizzati in diverse parti del mondo, riportano un tasso di prevalenza relativo al dolore cronico tra il 16-53%. Emerge una elevata eterogeneití di risultati relativi alle diagnosi e metodi. Seppure limitato il numero degli articoli, emerge una elevata complessití del fenomeno.Parole chiave: Dolore Cronico, Prevalenza, EpidemiologiaABSTRACTThe chronic nonmalignant pain is an underestimated epidemiologic health problem. It is a disease in its own right. It is one of the major reasons because patients use health service. The magnitude of chronic pain is in terms of human suffering and costs to society. The aim of this review is to identify the diagnosis and the prevalence of nonmalignant chronic pain in the adults. We have done a review of the literature from 1998 to 2012 using the virtual newspaper libraries starting from data bases (Pub-Med, CINAHL, Cochrane). We have made a narrative review of the articles obtained. Excluding topics of headache, pain for pediatric and geriatric groups, cancer pain and disease-specific items. Studies were classified for year, author sample, methods, age groups and definition of pain. We have obtained 7 articles. These epidemiological studies conducted in different part of the world, reported prevalence rates of chronic pain ranging from 16-53%. They shows a high heterogeneity of results concerning diagnosis and methods. Although limited the number of articles, show the high complexity of the phenomenon.Key Words: Chronic Pain, Prevalence, Epidemiology.
Intravenous continuous home inotropic therapy in advanced heart failure: Insights from an observational retrospective study
Introduction: Intravenous inotropic support represents an important therapeutic option in advanced heart failure (HF) as bridge to heart transplantation, bridge to mechanical circulatory support, bridge to candidacy or as palliative therapy. Nevertheless, evidence regarding risks and benefits of its use is lacking.
Methods: we conducted a retrospective single center study, analysing the effect of inotropic therapies in an outpatient cohort, evaluating the burden of hospitalizations, the improvement in quality of life, the incidence of adverse events and the evolution of organ damage.
Results: twenty-seven patients with advanced HF were treated in our Day Hospital service from 2014 to 2021. Nine patients were treated as bridge to heart transplant while eighteen as palliation. Comparing data regarding the year before and after the beginning of inotropic infusion, we observed a reduction of hospitalization (46 vs 25, p<0,001), an improvement of natriuretic peptides, renal and hepatic function since the first month (p<0,001) and a better quality of life in 53% of the population treated. Two hospitalizations for arrhythmias and seven hospitalizations for catheter-related complications were registered.
Conclusions: in a selected population of advanced HF patients, continuous home inotropic infusion were able to reduce hospitalizations, improving end organ damage and quality of life. We provide a practical guidance on starting and maintaining home inotropic infusion while monitoring a challenging group of patients
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