Zobrazení zdroje stránky Geertsenjuel4758

ified guidelines in sub-Saharan Africa. In Botswana, there is a critical need for local stakeholder input to inform country-level and facility-level resources, cancer care accessibility, and community-level barriers and facilitators.This study investigates the nanostructural mechanisms that lie behind load transmission in tendons and the role of glycosaminoglycans (GAGs) in the transmission of force in the tendon extracellular matrix. The GAGs in white New Zealand rabbit Achilles tendons were enzymatically depleted, and the tendons subjected to cyclic loading at 6% strain for up to 2 hr. A nanoscale morphometric assessment of fibril deformation under strain was linked with the decline in the tendon macroscale mechanical properties. An atomic force microscope (AFM) was employed to characterize the D-periodicity within and between fibril bundles (WFB and BFB, respectively). By the end of the second hour of the applied strain, the WFB and BFB D-periodicities had significantly increased in the GAG-depleted group (29% increase compared with 15% for the control, p  less then  .0001). No statistically significant differences were found between WFB and BFB D-periodicities in either the control or GAG-depleted groups, suggesting that mechanical load in Achilles tendons is uniformly distributed and fairly homogenous among the WFB and BFB networks. The results of this study have provided evidence of a cycle-dependent mechanism of damage accumulation. The accurate quantification of fibril elongation (measured as the WFB and BFB D-periodicity lengths) in response to macroscopic applied strain has assisted in assessing the complex structure-function relationship in Achilles tendon.<br /><br /> Recent evidence has established a beneficial effect of systemic corticosteroids for treatment of moderate-to-severe COVID-19.<br /><br /> To determine if inhaled corticosteroid use is associated with COVID-19 outcomes.<br /><br /> In a nationwide cohort of hospitalized SARS-CoV-2 test-positive individuals in Denmark, we estimated the 30-day hazard ratio of intensive care unit (ICU) admission or death among users of inhaled corticosteroids (ICS) compared with users of bronchodilators (β<br /><br /> -agonist/muscarinic-antagonists), and non-users of ICS overall, with Cox regression adjusted for age, sex, and other confounders. We repeated these analyses among influenza test-positive patients during 2010-2018.<br /><br /> Among 6267 hospitalized SARS-CoV-2 patients, 614 (9.8%) were admitted to ICU and 677 (10.8%) died within 30 days. ICS use was associated with a hazard ratio of 1.09 (95% CI [CI], 0.67 to 1.79) for ICU admission and 0.78 (95% CI, 0.56 to 1.11) for death compared with bronchodilator use. [https://www.selleckchem.com/JAK.html signaling pathway] Compared with no ICS use overall, the hazard ratio of ICU admission or death was 1.17 (95% CI, 0.87-1.59) and 1.02 (95% CI, 0.78-1.32), respectively. Among 10 279 hospitalized influenza patients, of which 951 (9.2%) were admitted to ICU and 1275 (12.4%) died, the hazard ratios were 1.43 (95% CI, 0.89-2.30) and 1.11 (95% CI, 0.85-1.46) for ICU admission, and 0.80 (95% CI, 0.63-1.01) and 1.03 (95% CI, 0.87-1.22) for death compared with bronchodilator use and no ICS use overall, respectively.<br /><br /> Our results do not support an effect of inhaled corticosteroid use on COVID-19 outcomes, however we can only rule out moderate-to-large reduced or increased risks.<br /><br /> The study was pre-registered at encepp.eu (EUPAS35897).<br /><br />The study was pre-registered at encepp.eu (EUPAS35897).<br /><br /> Chemotherapy-induced peripheral neuropathy (CIPN) is a common, debilitating adverse effect of neurotoxic chemotherapy that significantly worsens the quality of life of cancer survivors.<br /><br /> Survivors of solid tumors with persistent moderate-to-severe CIPN defined as numbness, tingling, or pain rated ≥4 on an 11-point numeric rating scale (NRS) were randomized in a 111 ratio to 8 weeks of real acupuncture (RA) versus sham acupuncture (SA) versus usual care (UC). We previously reported the primary endpoint (NRS); here we report the following health-related quality of life endpoints Functional Assessment of Cancer Therapy/Gynecologic Oncology Group-Neurotoxicity (FACT/GOG-Ntx), Hospital Anxiety and Depression Scale (HADS), Insomnia Severity Index (ISI), and Brief Fatigue Inventory (BFI). For each endpoint, the mean changes from baseline and 95% confidence intervals were estimated within each arm and compared between arms using linear mixed models.<br /><br /> We enrolled 75 survivors of solid tumors with moderate-to-severd reducing anxiety and insomnia in cancer survivors with persistent CIPN, with further study needed to delineate placebo effects.SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), the new coronavirus responsible for the pandemic disease in the last year, is able to affect the central nervous system (CNS). Compared with its well-known pulmonary tropism and respiratory complications, little has been studied about SARS-CoV-2 neurotropism and pathogenesis of its neurological manifestations, but also about postmortem histopathological findings in the CNS of patients who died from COVID-19 (coronavirus disease 2019). We present a systematic review, carried out according to the Preferred Reporting Items for Systematic Review standards, of the neuropathological features of COVID-19. We found 21 scientific papers, the majority of which refer to postmortem examinations; the total amount of cases is 197. Hypoxic changes are the most frequently reported alteration of brain tissue, followed by ischemic and hemorrhagic lesions and reactive astrogliosis and microgliosis. These findings do not seem to be specific to SARS-CoV-2 infection, they are more likely because of systemic inflammation and coagulopathy caused by COVID-19. More studies are needed to confirm this hypothesis and to detect other possible alterations of neural tissue. Brain examination of patients dead from COVID-19 should be included in a protocol of standardized criteria to perform autopsies on these subjects.Older adults over the age of 65 were announced as a high-risk group in the COVID-19 outbreak and had to be placed on lockdown for a long time. The research was conducted to identify the psychosocial status, attitudes, and experiences of individuals aged 65 and over who were in-home lockdown during the COVID-19 outbreak in Turkey. In the study, 51 older adults were reached using the snowball sampling method. The research data were collected through qualitative interviews from older adults who were in house restrictions during the pandemic period, and thematic analysis was performed. As a result of the interviews, four main themes revealed as (a) Growing old is like a crime The public perception of the older adults regarding the stigma associated with aging, (b) The inevitable course Potential possibilities arising as a result of the pandemic period, (c) The cost of lockdown at home Risk factors arising due to staying at home for a long time, (d) The desire for equality The developing resistance against lockdown and demands for equality. The lockdown applied exclusively to older adults forced them to create new routines and made them aware of some values; however, they asserted that they were stigmatized and lonely, that their concerns about death/catching COVID-19 increased, and they were treated unfairly. Measures should be taken to prevent mental problems in older adults. In addition, public health nurses are advised to provide preventive care services and counselling for early intervention.<br /><br /> The subthalamic nucleus (STN) and internal globus pallidus (GPi) are the most effective targets in deep brain stimulation (DBS) for Parkinson's disease (PD). However, the common and specific effects on brain connectivity of stimulating the 2 nuclei remain unclear.<br /><br /> Patients with PD receiving STN-DBS (n=27, 6 women, mean age 64.8 years) or GPi-DBS (n=28, 13 women, mean age 64.6 years) were recruited for resting-state functional magnetic resonance imaging to assess the effects of STN-DBS and GPi-DBS on brain functional dynamics.<br /><br /> The functional connectivity both between the somatosensory-motor cortices and thalamus, and between the somatosensory-motor cortices and cerebellum decreased in the DBS-on state compared with the off state (p &lt; 0.05). The changes in thalamocortical connectivity correlated with DBS-induced motor improvement (p &lt; 0.05) and were negatively correlated with the normalized intersection volume of tissues activated at both DBS targets (p &lt; 0.05). STN-DBS modulated functional conneet sites. Our results provide mechanistic insight and yield the potential to refine target selection strategies for focal brain stimulation in PD. ANN NEUROL 2021.<br /><br /> In this paper, the ability to quantify cerebral blood flow by arterial spin labeling (ASL) was studied by investigating the separation of the macrovascular and tissue component using a 2-component model. Underlying assumptions of this model, especially the inclusion of dispersion in the analysis, were studied, as well as the temporal resolution of the ASL datasets.<br /><br /> Four different datasets were acquired (1) 4D ASL angiography to characterize the macrovascular component and to study dispersion modeling within this component, (2) high temporal resolution ASL data to investigate the separation of the 2 components and the effect of dispersion modelling on this separation, (3) low temporal resolution ASL dataset to study the effect of the temporal resolution on the separation of the 2 components, and (4) low temporal resolution ASL data with vascular crushing.<br /><br /> The model that included a gamma dispersion kernel had the best fit to the 4D ASL angiography. For the high temporal resolution ASL dataset, inclusion of the gamma dispersion kernel led to more signal included in the arterial blood volume map, which resulted in decreased cerebral blood flow values. The arterial blood volume and cerebral blood flow maps showed overall higher arterial blood volume values and lower cerebral blood flow values for the high temporal resolution dataset compared to the low temporal resolution dataset.<br /><br /> Inclusion of a gamma dispersion kernel resulted in better fitting of the model to the data. The separation of the macrovascular and tissue component is affected by the inclusion of a gamma dispersion kernel and the temporal resolution of the ASL dataset.<br /><br />Inclusion of a gamma dispersion kernel resulted in better fitting of the model to the data. The separation of the macrovascular and tissue component is affected by the inclusion of a gamma dispersion kernel and the temporal resolution of the ASL dataset.We report a case of a 6-month-old girl with double outlet right ventricle where a right aortic arch with an abnormally posterior brachio-bicephalic trunk on the left side closely resembled an incomplete double-aortic-arch with distal left arch atresia on computed tomography (CT) angiography. The case highlights the role of preoperative CT angiography in demonstrating aortic arch and arch vessel anatomy in patients with complex congenital heart diseases.<br /><br /> Active smoking is known to impair wound healing following free tissue transfer for reconstruction due to its vasoconstrictive effect on the microcirculation. The aim of this study was to evaluate the impact of flap selection on flap loss, in nonelective, traumatic extremity-free soft tissue transfer in active smokers.<br /><br /> All patients undergoing a free tissue transfer for acute trauma of the extremity at a level I trauma center from 2011 to 2017 were identified. Breast reconstruction and osseous/osseocutaneous flaps were excluded. The study population was divided in two groups based on the type of flap used (muscle versus perforator flap). Factors known to be associated with impaired wound healing were extracted from the database. Primary outcome was major smoking related complications (complete/partial flap loss). Secondary outcomes included minor flap-related complications (infection, dehiscence) and donor site complications. The impact of smoking was assessed for the different type of flaps using multivariate analyses.