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Willard Ottesen opublikował 1 rok, 3 miesiące temu
73%, 95% CI = -2.85 to -.58%, P = .004).
We propose that younger patients experience a greater elevation in sNfL than older patients in response to Gad+ lesions. Our study provides potential insights into the effects of aging on neuroinflammation in MS.
We propose that younger patients experience a greater elevation in sNfL than older patients in response to Gad+ lesions. Our study provides potential insights into the effects of aging on neuroinflammation in MS.
Diffusion-weighted whole-body imaging with background suppression (DWIBS) is used for the diagnosis and staging of cancers. The medical cost of an MR examination including DWIBS is $123, which is 80% less expensive than the cost ($798) of F18-fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) examination.
This study examined the efficacy of DWIBS for relapses after lung cancer resection. A total of 55 patients who had pulmonary resection of lung cancer, postoperative computed tomography (CT) every six months, and DWIBS and FDG-PET/CT (every year) were enrolled in this study. If a metastatic lesion was detected on CT scan, DWIBS and FDG-PET/CT were also used.
A total of 55 patients who underwent pulmonary resections for lung cancer, and had CT, DWIBS and FDG-PET/CT examination during follow-up after pulmonary resection were enrolled in this study. Lung cancer in 32 patients relapsed. Postoperative radiographic examinations revealed pulmonary metastases in 17 patients, bone mstic accuracy and is less expensive in medical costs for the detection of a relapse. DWIBS could potentially replace FDG-PET/CT after lung cancer resection.
Dementia with Lewy bodies (DLB) is the second most prevalent cause of degenerative dementia next to Alzheimer’s disease (AD). Though current DLB diagnostic criteria employ several indicative biomarkers, relative preservation of the medial temporal lobe as revealed by structural MRI suffers from low sensitivity and specificity, making them unreliable as sole supporting biomarkers. In this study, we investigated how a deep learning approach would be able to differentiate DLB from AD with structural MRI data.
Two-hundred and eight patients (101 DLB, 69 AD, and 38 controls) participated in this retrospective study. Gray matter images were extracted using voxel-based morphometry (VBM). In order to compare the conventional statistical analysis with deep-learning feature extraction, we built a classification model for DLB and AD with a residual neural network (ResNet) type of convolutional neural network architecture, which is one of the deep learning models. The anatomically standardized gray matter images extracted in the same way as for the VBM process were used as inputs, and the classification performance achieved by our model was evaluated.
Conventional statistical analysis detected no significant atrophy other than fine differences on the middle temporal pole and hippocampal regions. The feature extracted by the deep learning method differentiated DLB from AD with 79.15% accuracy compared to the 68.41% of the conventional method.
Our results confirmed that the deep learning method with gray matter images can detect fine differences between DLB and AD that may be underestimated by the conventional method.
Our results confirmed that the deep learning method with gray matter images can detect fine differences between DLB and AD that may be underestimated by the conventional method.
Long non-coding RNAs (lncRNAs) have been found to be involved in the development of many cancers. In this study, we aimed to identify the molecular mechanisms of lncRNA BAALC antisense RNA 1 (BAALC-AS1) in regulating the malignancy of esophageal squamous cell carcinoma (ESCC).
The expression of BAALC-AS1 in cancer patients was analyzed using a tissue microarray. The protein and RNA levels of BAALC-AS1 were determined by Western blotting analysis and quantitative reverse transcription-PCR (RT-qPCR), respectively. The cell proliferation was determined by cell viability assays, bromodeoxyuridine incorporation, and flow cytometry. The relationships among BAALC-AS1, RasGAPSH3 domain-binding protein 2 (G3BP2), and c-Myc were determined using RNA immunoprecipitation, RNA pull-down assays, and luciferase assays.
The expression of BAALC-AS1 was highly up-regulated and associated with malignant phenotypes in ESCC tissues and cell lines. In vivo and in vitro assays showed that BAALC-AS1 promoted ESCC cell proliferation, migration, and invasion. BAALC-AS1 directly interacted with G3BP2, and thereby inhibited the degradation of c-Myc RNA 3′-UTR by G3BP2, thus leading to the accumulation of c-Myc expression. Additionally, c-Myc acted as a transcription factor that can induce the expression of BAALC-AS1 by directly binding to its promoter region.
BAALC-AS1/G3BP2/c-Myc feedback loop plays a critical role in the development of ESCC, which might provide a novel therapeutic target and facilitate the development of new therapeutic strategies for the treatment of ESCC.
BAALC-AS1/G3BP2/c-Myc feedback loop plays a critical role in the development of ESCC, which might provide a novel therapeutic target and facilitate the development of new therapeutic strategies for the treatment of ESCC.This proof-of-concept study sought to determine the effects of standard of care (SOC) and a topically applied concentrated surfactant gel (SG) on the total microbial load, community composition, and community diversity in non-healing diabetic foot ulcers (DFUs) with chronic biofilm infections. SOC was provided in addition to a topical concentrated SG, applied every 2 days for 6 weeks. Wound swabs were obtained from the base of ulcers at baseline (week 0), week 1, mid-point (week 3), and end of treatment (week 6). DNA sequencing and real-time quantitative polymerase chain reaction (qPCR) were employed to determine the total microbial load, community composition, and diversity of patient samples. Tissue specimens were obtained at baseline and scanning electron microscopy and peptide nucleic acid fluorescent in situ hybridisation with confocal laser scanning microscopy were used to confirm the presence of biofilm in all 10 DFUs with suspected chronic biofilm infections. The application of SG resulted in 7 of 10 tion of DFUs with chronic biofilm infections.The study aims to characterize the epilepsy phenotype of maternally inherited Leigh’s syndrome (MILS) and neuropathy, ataxia, retinitis pigmentosa (NARP) due to mutations in the mitochondrial ATP6 gene and to correlate electroclinical features with mutant heteroplasmy load (HL). We investigated 17 individuals with different phenotype, from asymptomatic carriers to MILS 11 carried the m.8993T> G mutation, 5 the m.8993T> C and one the novel, de novo m.8858G> A mutation. Seizures occurred in 37.5% of patients, EEG abnormalities in 73%. We ranked clinical and EEG abnormalities severity and performed quantitative EEG to estimate Abnormality Ratio (AR) and Spectral Relative Power (SRP). Spearman’s rho and Kruskal-Wallis test were used for correlation with heteroplasmy load (HL). HL correlated with disease severity (Rho = 0.63, P = 0.012) and was significantly higher in patients with seizures or EEG abnormalities (P = 0.014). HL correlated with EEG severity score only for the m.8993T> G (Rho = 0.73, P = 0.040), showing a trend toward a positive correlation with AR and delta SPR, irrespective of the mutation.Autism spectrum disorder (ASD) is characterized by a complex polygenic background, but with the unique feature of a subset of cases (~15%-30%) presenting a rare large-effect variant. However, clinical interpretation in these cases is often complicated by incomplete penetrance, variable expressivity and different neurodevelopmental trajectories. NRXN1 intragenic deletions represent the prototype of such ASD-associated susceptibility variants. From chromosomal microarrays analysis of 104 ASD individuals, we identified an inherited NRXN1 deletion in a trio family. We carried out whole-exome sequencing and deep sequencing of mitochondrial DNA (mtDNA) in this family, to evaluate the burden of rare variants which may contribute to the phenotypic outcome in NRXN1 deletion carriers. We identified an increased burden of exonic rare variants in the ASD child compared to the unaffected NRXN1 deletion-transmitting mother, which remains significant if we restrict the analysis to potentially deleterious rare variants only (P = 6.07 × 10-5 ). We also detected significant interaction enrichment among genes with damaging variants in the proband, suggesting that additional rare variants in interacting genes collectively contribute to cross the liability threshold for ASD. Finally, the proband’s mtDNA presented five low-level heteroplasmic mtDNA variants that were absent in the mother, and two maternally inherited variants with increased heteroplasmic load. This study underlines the importance of a comprehensive assessment of the genomic background in carriers of large-effect variants, as penetrance modulation by additional interacting rare variants to might represent a widespread mechanism in neurodevelopmental disorders.
Nurses have an increased risk for acquiring COVID-19 infection. This study assessed levels of risk for exposure to COVID-19 among nurses, and determined those at the greatest risk.
A cross-sectional design was used to assess risk for exposure to COVID-19 in nurses from five randomly selected governmental hospitals in the United Arab Emirates. Participants completed an online survey (including the World Health Organization survey) to assess their risk for exposure to COVID-19. Descriptive statistics were used to describe classes of risk for exposure, and logistic regression was used to identify factors associated with greater risk.
Of the 552 participants, 284 nurses (51.4%) were classified at high risk for COVID-19 exposure as they did not report adherence to infection control and prevention (ICP) guidelines at all times during healthcare interactions and when performing aerosol procedures, or had accidental exposure to biological fluid and respiratory secretions. Compared with adherence to wearing medit high risk for exposure to COVID-19. Clinical leaders must stay vigilant to ensure nurses’ adherence to ICP practices in the context of COVID-19, and to proactively address any related deficits.Chronic wounds are a considerable health burden with high morbidity and poor rates of healing. Colonisation of chronic wounds by bacteria can be a significant factor in their poor healing rate. These bacteria can develop antibiotic resistance over time and can lead to wound infections, systemic illness, and occasionally amputation. When a large number of micro-organisms colonise wounds, they can lead to biofilm formation, which are self-perpetuating colonies of bacteria closed within an extracellular matrix, which are poorly penetrated by antibiotics. Platelet-rich plasma (PRP) is an autologous blood product rich in growth factors and cytokines that are involved in an inflammatory response. PRP can be injected or applied to a wound as a topical gel, and there is some interest regarding its antimicrobial properties and whether this can improve wound healing. This study aimed to evaluate the in vitro bacteriostatic effect of PRP. PRP was collected from healthy volunteers and processed into two preparations activated PRP-activated with calcium chloride and ethanol; inactivated PRP.


