136 research outputs found
Prevalence and time course of post-stroke pain: A multicenter prospective hospital-based study
OBJECTIVE:
Pain prevalence data for patients at various stages after stroke.
DESIGN:
Repeated cross-sectional, observational epidemiological study.
SETTING:
Hospital-based multicenter study.
SUBJECTS:
Four hundred forty-three prospectively enrolled stroke survivors.
METHODS:
All patients underwent bedside clinical examination. The different types of post-stroke pain (central post-stroke pain, musculoskeletal pains, shoulder pain, spasticity-related pain, and headache) were diagnosed with widely accepted criteria during the acute, subacute, and chronic stroke stages. Differences among the three stages were analyzed with χ(2)-tests.
RESULTS:
The mean overall prevalence of pain was 29.56% (14.06% in the acute, 42.73% in the subacute, and 31.90% in the chronic post-stroke stage). Time course differed significantly according to the various pain types (P < 0.001). The prevalence of musculoskeletal and shoulder pain was higher in the subacute and chronic than in the acute stages after stroke; the prevalence of spasticity-related pain peaked in the chronic stage. Conversely, headache manifested in the acute post-stroke stage. The prevalence of central post-stroke pain was higher in the subacute and chronic than in the acute post-stroke stage. Fewer than 25% of the patients with central post-stroke pain received drug treatment.
CONCLUSIONS:
Pain after stroke is more frequent in the subacute and chronic phase than in the acute phase, but it is still largely undertreated
Transcription factor binding sites are genetic determinants of retroviral integration in the human genome.
Gamma-retroviruses and lentiviruses integrate non-randomly in mammalian genomes, with specific preferences for active chromatin, promoters and regulatory regions. Gene transfer vectors derived from gamma-retroviruses target at high frequency genes involved in the control of growth, development and differentiation of the target cell, and may induce insertional tumors or pre-neoplastic clonal expansions in patients treated by gene therapy. The gene expression program of the target cell is apparently instrumental in directing gamma-retroviral integration, although the molecular basis of this phenomenon is poorly understood. We report a bioinformatic analysis of the distribution of transcription factor binding sites (TFBSs) flanking >4,000 integrated proviruses in human hematopoietic and non-hematopoietic cells. We show that gamma-retroviral, but not lentiviral vectors, integrate in genomic regions enriched in cell-type specific subsets of TFBSs, independently from their relative position with respect to genes and transcription start sites. Analysis of sequences flanking the integration sites of Moloney leukemia virus (MLV)- and human immunodeficiency virus (HIV)-derived vectors carrying mutations in their long terminal repeats (LTRs), and of HIV vectors packaged with an MLV integrase, indicates that the MLV integrase and LTR enhancer are the viral determinants of the selection of TFBS-rich regions in the genome. This study identifies TFBSs as differential genomic determinants of retroviral target site selection in the human genome, and suggests that transcription factors binding the LTR enhancer may synergize with the integrase in tethering retroviral pre-integration complexes to transcriptionally active regulatory regions. Our data indicate that gamma-retroviruses and lentiviruses have evolved dramatically different strategies to interact with the host cell chromatin, and predict a higher risk in using gamma-retroviral vs. lentiviral vectors for human gene therapy applications
Stability of psychological wellbeing during the COVID-19 pandemic among people with an anthroposophical worldview: the influence of wondering awe and perception of nature as resources
BackgroundDuring the COVID-19 pandemic, differences in responses and behaviors were observed among specific groups. We aimed to address how people with an anthroposophical worldview behaved with respect to the perception of burden, fears, and wellbeing. As it is an integral part of their lifestyle and convictions, we addressed the influence of wondering awe and gratitude and perception of nature and times of mindful quietness as resources to cope.MethodsIn two cross-sectional surveys with standardized instruments, participants were recruited in 2020 (n = 1,252) and 2021 (n = 2,273).ResultsPsychological wellbeing was much higher than in other studied groups and populations, with slightly lower scores in 2021 compared to the 2020 sample (Eta2 = 0.020), while the perception of the COVID-19-related burden and fear of the future were low in 2020 with a slight increase in 2021 (Eta2 = 0.033 and 0.008, respectively). Their transcendence conviction was negatively related to fears of their own infection or the infection of others. Best predictors of their wellbeing were low burden and awe/gratitude, while the best predictors of their burden were low wellbeing and lack of social contacts.ConclusionCompared to the general population in Germany, the anthroposophical lifestyle and related convictions may have buffered some of the COVID-19-related burden and helped them to stabilize their psychological wellbeing
A non-invasive approach to monitor chronic lymphocytic leukemia engraftment in a xenograft mouse model using ultra-small superparamagnetic iron oxide-magnetic resonance imaging (USPIO-MRI).
This work was supported by: Associazione Italiana Ricerca sul Cancro (AIRC) [Grant 5 x mille n.9980, (to M.F., F.M. and A. N.)]; AIRC I.G. [n. 14,326 (to M.F.)], [n.10136 and 16,722 (A.N.)], [n.15426 (to F.F.)]. AIRC and Fondazione CaRiCal co-financed Multi Unit Regional Grant 2014 [n.16695 (to F.M.)]. Italian Ministry of Health 5 × 1000 funds (to F.F). A.G R. was supported by Associazione Italiana contro le Leucemie-Linfomi-Mielomi (AIL) Cosenza - Fondazione Amelia Scorza (FAS). S.M. C.M., F.V., L. E., S. B., were supported by AIRC.Peer reviewedPostprin
Hepatic and extra-hepatic sequelae, and prevalence of viral hepatitis C infection estimated from routine data in at-risk groups
<p>Abstract</p> <p>Background</p> <p>Concerns about the hepatitis C virus (HCV) are due to the high risk of chronic liver disease and poor treatment efficacy. Synthesizing evidence from multiple data sources is becoming widely used to estimate HCV-infection prevalence. This paper aims to estimate the prevalence of HCV infection, and the hepatic and extrahepatic sequelae in at-risk groups, using routinely collected data in the Lazio region, Italy.</p> <p>Methods</p> <p>HCV laboratory surveillance and dialysis, hospital discharge, and drug-user registers were used as information sources to identify at-risk groups and to estimate HCV prevalence and sequelae.</p> <p>Full name and birth date were used as linkage keys for the various health registries. Prevalence was estimated as the percentage of cases within the general population and the at-risk groups, with 95% confidence intervals (95% CI) from 1997 to 2001. The risk of sequelae was estimated through a follow-up of hospital discharges up to December 31, 2004 and calculated as the prevalence ratio in HCV-positive and HCV-negative people, within each at-risk group, with 95% CI.</p> <p>Results</p> <p>There were 65,127 HCV-infected people in the study period; the prevalence was 1.24% (95%CI = 1.23%-1.25%) in the whole population, higher in males and older adults. Drug users (35.1%; 95%CI = 34.6-35.7) and dialysis patients (21.1%; 95%CI = 20.2%-22.0%) showed the highest values. Medical procedures with little exposure to blood resulted in higher estimates, ranging between 1.3% and 3.4%, which was not conclusively attributable to the surgical procedures. Cirrhosis, hepatocellular carcinoma and encephalopathy were the most frequent hepatic sequelae; cryoglobulinaemia and non-Hodgkin's lymphoma were the most frequent extrahepatic sequelae.</p> <p>Conclusions</p> <p>Synthesising data from multiple routine sources improved estimates of HCV prevalence and sequelae in dialysis patients and drug users, although prevalence validity should be assessed in survey and sequelae need a well-defined longitudinal approach.</p
Ulnar Goniometer Device: Confronto tra elettro-neurografia ed ecografia.
Obbiettivo
Il nostro studio mira a estendere la ricerca precedente e confrontare due metodi diagnostici eseguiti sul nervo ulnare per convalidare l'uso del goniometro ulnare nella pratica elettromiografica come strumento ausiliario diagnostico.
Confrontando il metodo elettro-neurografico, ottenuto attraverso studi sulla velocità di conduzione (VC), con l'ecografia del nervo ulnare al canale cubitale e in corrispondenza del terzo medio dell’avambraccio, miriamo a quantificare l'affidabilità del goniometro ulnare rispetto al metodo diagnostico dell'ecografia del nervo.
Materiali E Metodi
l'operatore ha eseguito l'esame con l'uso del Goniometro Ulnare, rilevando la velocità di conduzione motoria dal polso al gomito e la velocità sopra il gomito (AE), sotto il gomito (BE) e successivamente ha eseguito l'ecografia del nervo ulnare nell'avambraccio e nel gomito. Abbiamo calcolato il grado di omogeneità tra le misurazioni.
Risultati
Valutando 30 partecipanti di entrambi i sessi con sintomi parestesici tipici di compressione del nervo ulnare al gomito, Il 100% delle misurazioni mostra che una diminuzione di MCV al di sotto di 50 m/s è associata a un aumento di CSA. Inoltre, nell'89% dei casi, una riduzione di MCV wBE e BEAE di più di 10 m/s è correlata a un aumento di CSA.
Discussione e Conclusioni
La misurazione dell'angolo sotto il gomito (BE) e sopra il gomito (AE) utilizzando il Goniometro Ulnare ci fornisce una Velocità di Conduzione Motoria (MCV) rallentata che è in accordo con i dati ecografici che mostrano un aumento della cosiddetta Cross Sectional Area (CSA) ossia la sezione trasversale misurata in mm2 del nervo ulnare in quel segmento, come accade nella Sindrome del Tunnel Cubitale (CTS)
Flow cytometric immunobead assay for detection of BCR-ABL1 fusion proteins in chronic myleoid leukemia: Comparison with FISH and PCR techniques
Chronic Myeloid Leukemia (CML) is characterized by a balanced translocation juxtaposing the Abelson (ABL) and breakpoint cluster region (BCR) genes. The resulting BCR-ABL1 oncogene leads to increased proliferation and survival of leukemic cells. Successful treatment of CML has been accompanied by steady improvements in our capacity to accurately and sensitively monitor therapy response. Currently, measurement of BCR-ABL1 mRNA transcript levels by real-time quantitative PCR (RQ-PCR) defines critical response endpoints. An antibody-based technique for BCR-ABL1 protein recognition could be an attractive alternative to RQ-PCR. To date, there have been no studies evaluating whether flow-cytometry based assays could be of clinical utility in evaluating residual disease in CML patients. Here we describe a flow-cytometry assay that detects the presence of BCR-ABL1 fusion proteins in CML lysates to determine the applicability, reliability, and specificity of this method for both diagnosis and monitoring of CML patients for initial response to therapy. We show that: i) CML can be properly diagnosed at onset, (ii) follow-up assessments show detectable fusion protein (i.e. relative mean fluorescent intensity, rMFI%>1) when BCR-ABL1IS transcripts are between 1-10%, and (iii) rMFI% levels predict CCyR as defined by FISH analysis. Overall, the FCBA assay is a rapid technique, fully translatable to the routine management of CML patients
Ulnar Goniometer Device: Comparison between electro-neurography and ultrasound.
OBJECTIVE
Our study aims to extend the previous research and compare two diagnostic methods performed on the ulnar nerve to validate the use of the ulnar goniometer in electromyographic diagnostic practice. Comparing the electroneurographic method, obtained through conduction velocity (CV) studies with ultrasound of the ulnar nerve in the area above the elbow and at the wrist, we aim to quantify the reliability of the ulnar goniometer compared to the diagnostic method ultrasound of the nerve.
MATERIALS AND METHODS
The operator examined with the use of the Ulnar Goniometer, detecting the wrist-below-elbow motor conduction speed and the above-elbow speed (AE), below-elbow speed (BE) and subsequently performed an ultrasound examination of the ulnar nerve in the forearm and elbow. We calculated the degree of homogeneity between measurements.
RESULTS
Evaluating 30 participants of both genders with typical paresthetic symptoms of ulnar nerve compression at the elbow, 100% of the measurements show that a decrease in Motor Conduction Velocity (MCV) below 50 m/s is associated with an increase in Cross-Sectional Area (CSA). Additionally, in 89% of cases, a reduction in MCV wBE and BEAE by more than 10 m/s is correlated with an increase in CSA.
DISCUSSION AND CONCLUSIONS
The measurement of the angle below the elbow (BE) and above the elbow (AE) using the Ulnar Goniometer provides us with a slowed Motor Conduction Velocity (MCV) that is by ultrasound data showing an increase in the Cross-Sectional Area (CSA) of the ulnar nerve in that segment, as observed in Cubital Tunnel Syndrome (CTS)
Microenvironmental regulation of the IL-23R/IL-23 axis overrides chronic lymphocytic leukemia indolence
Although the progression of chronic lymphocytic leukemia (CLL) requires the cooperation of the microenvironment, the exact cellular and molecular mechanisms involved are still unclear. We investigated the interleukin (IL)-23 receptor (IL-23R)/IL-23 axis and found that circulating cells from early-stage CLL patients with shorter time-to-treatment, but not of those with a more benign course, expressed a defective form of the IL-23R complex lacking the IL-12R beta 1 chain. However, cells from both patient groups expressed the complete IL-23R complex in tissue infiltrates and could be induced to express the IL-12R. 1 chain when cocultured with activated T cells or CD40L(+) cells. CLL cells activated in vitro in this context produced IL-23, a finding that, together with the presence of IL-23 in CLL lymphoid tissues, suggests the existence of an autocrine/paracrine loop inducing CLL cell proliferation. Interference with the IL-23R/IL-23 axis using an anti-IL-23p19 antibody proved effective in controlling disease onset and expansion in xenografted mice, suggesting potential therapeutic strategies
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