Lassiterthomsen2585
87±7.22years (mean±standard deviation) and 21 healthy subjects (age 46.0±12.6years) from July 2017 to July 2018. MS patients showed a lower DCs density when compared with healthy subjects (p<0.05). Moreover, we found a direct correlation (r0.48, p<0.05) between DCs density and ongoing disease-modifying therapy.
IVCM was able to show a difference in corneal DCs density between MS patients and healthy subjects, providing an insight to the underlying changes of the clinical manifestations of MS. Further studies are needed to provide evidence of possible clinical implications.
IVCM was able to show a difference in corneal DCs density between MS patients and healthy subjects, providing an insight to the underlying changes of the clinical manifestations of MS. Further studies are needed to provide evidence of possible clinical implications.
Bulbar symptoms are frequent in patients with rapid-onset dystonia-parkinsonism (RDP). RDP is caused by ATP1A3 mutations, with onset typically within 30days of stressor exposure. Most patients have impairments in speech (dysarthria) and voice (dysphonia). These have not been quantified. We aimed to formally characterize these in RDP subjects as compared to mutation negative family controls.
We analyzed recordings in 32 RDP subjects (male=21, female=11) and 29 mutation negative controls (male=15, female=14). Three raters, blinded to mutation status, rated speech and vocal quality. Dysarthria was classified by subtype. Dysphonia was rated via the GRBAS (Grade, Roughness, Breathiness, Asthenia, Strain) scale. We used general neurological exams and the Burke-Fahn-Marsden Dystonia Rating Scale (BFMDRS) to assess dysarthria, dystonia, and speech/swallowing dysfunction.
The presence of dysarthria was more frequent in RDP subjects compared to controls (72% vs. 17%, p<0.0001). GRBAS voice ratings were worse imore frequently experienced bulbar symptoms than controls. GRBAS scores are useful in quantifying voice impairment, potentially allowing for better assessments of progression or treatment effects. Future directions include using task-specific diagnostic and perceptual voice evaluation tools to further assess laryngeal dystonia.Treatments enhancing angiogenesis for chronic cerebral hypoperfusion (CCH) are still in the research stage. Although encephalomyosynangiosis (EMS) is a common indirect anastomosis for the treatment of CCH, the effectiveness to promote angiogenesis is not satisfactory. Vascular endothelial growth factors (VEGF) is a cytokine found to specifically act directly on vascular endothelial cells, promote neovascularization, and enhance capillary permeability. However, the short half life and unstable property of VEGF underlies the need to explore available delivery system. In this study, poly (lactide-co-glycolide) (PLGA) was used to prepare VEGF controlled-release microspheres. In vitro and in vivo analysis of release kinetics showed that the microspheres could release VEGF continuously within 30 days. Then, modified chronic cerebral hypoperfusion rat model was established by ligation of bilateral internal carotid artery and one vertebral artery. At 14 days after ischemia, the EMS and the VEGF microspheres injection were performed. At 30 days after the injection, the result of Morris water maze displayed that combinating VEGF microspheres and EMS significantly ameliorated cognitive deficit after ischemia. We observed that combinating VEGF microspheres and EMS could further significantly increase cerebral blood flow. We speculated that this enhancement of cerebral blood flow was attributed to more angiogenesis induced by combination of VEGF microspheres and EMS, which verified by more collateral circulation with cerebral angiography and higher expression of CD31 or α-SMA. Our study demonstrated that combinating VEGF-PLGA controlled-release microspheres could significantly promote angiogenesis in EMS-based CCH rats model, providing new ideas for clinical treatment of CCH.Microwave ablation of the spine is an effective treatment option for patients with symptomatic osseous metastases. It is an increasingly common procedure in clinical practice and can be performed in conjunction with other procedures such as vertebroplasty and nerve root blocks. Multiple studies have demonstrated the safety and efficacy of the percutaneous ablation; however potential complications can arise. Thermal injury to the spinal cord is a rare but serious known complication which has severe consequences to the patient. Multiple strategies can be adopted to reduce the rate of complications. We aim to discuss the various technical considerations when performing percutaneous ablation of spinal tumours to decrease the risks of complications.As the surgical techniques have been significantly developed, thoracic spine surgery is currently increasingly indicated for a variety of pathologies such as degenerative spondylosis, ligament ossification, spinal deformity, infectious diseases, trauma and tumors. Thoracic spine has the distinctive anatomy with the rib attachment and the proximity to great vessels and lungs, and spinal cord has particular vulnerability due to its unique circulation system. Thus, both anterior and posterior approach surgeries have their own risks unique to this spinal segment. To be capable of challenging the spinal disorders in thoracic spine, surgeons must be aware of possible complications and their avoidance methods as well as management strategy. In the present narrative review paper, the complications in thoracic spine surgery are categorized into approach-related complications, neurological complications, wound-related complications, mechanical and instrument-related complications, as well as medical complications along with pre-, intra- and post-operative considerations. Their pathologies, possible sequelae, incidence, risk factors, prevention and management are discussed. As for some of the complications that are also commonly seen in cervical or lumbar spine, focus is placed on their importance in thoracic spine surgery. To prevent these adverse events associated with thoracic spine surgery, surgeons should be familiar with detailed knowledge of thoracic anatomy related to its approach as well as physiological characteristics.The spatial and temporal distribution of aquaporin-4 (AQP4) expression in rat brain following brain trauma and AQP4-siRNA treatment, as well as corresponding pathological changes, were studied to explore the mechanism underlying the effect of AQP4-siRNA treatment on traumatic brain injury (TBI). The rats in the sham operation group had normal structure, with AQP4 located in the perivascular end-foot membranes and astrocytic membranes in a polarized pattern. The accelerated polarity reversal was observed in the TBI group in 1-12 h after TBI. During this period, AQP4 abundance on the astrocytic membrane is gradually increased, while AQP4 abundance on the perivascular end-foot membrane declined rapidly. Twelve hours after TBI, AQP4 expression was depolarized, showing a shift from the perivascular end-foot membrane to the astrocytic membrane. Pathological observation showed that vasogenic edema occurred immediately after TBI, at which time the extracellular space was expanded, leading to severe intracellular edema. AQP4-siRNA reduced the polarity reversal index at the early stage of TBI recovery and reduced edema, demonstrating the potential benefit of reduced AQP4 expression during recovery from TBI.A study group on C5 palsy retrospectively reviewed 1001 cervical operations at their institutions in order to understand the incidence, prognosticators, pathogenesis, and outcome of C5 palsy after cervical operations. Three studies are summarized. C5 palsy was higher after posterior versus anterior operations. C4-C5 foraminotomy and age were the strongest predictors of C5 palsy after posterior surgeries and anterior cervical decompression-fusion, respectively. Among patients undergoing C4-C5 posterior laminoforaminotomy with instrumented fusion, cord shift on postoperative imaging was thought to be implicated in the pathogenesis of C5 palsy. Among affected patients, 81.4% recovered. Median time to resolution of C5 palsy was between 6 months to 1 year.
It is an economical strategy to design a screening method to decide which patients with amyotrophic lateral sclerosis/ motor neuron disease (ALS/MND) should enter into the stage for further comprehensive neuropsychological investigation.
59 patients (including 8 with frank dementia) were recruited. They underwent the extensive neuropsychological evaluation and short screening batteries, namely the Mini-Mental State Examination (MMSE), the Peking Union Medical College Hospital version of Montreal Cognitive Assessment (MoCA-P) and the Frontal Assessment Battery (FAB). Results of the extensive neuropsychological evaluation were set as the gold standard to diagnose cognitive impairment, and the effectiveness of screening tests were measured against them.
By comparing the sensitivity and specificity, we found that the combination of FAB plus both or either of the other 2 short batteries provided a satisfactorily high sensitivity, but none of these screening batteries was significantly associated with quantitative behavioral measurements among non-demented subjects, the Frontal Behavioral Inventory-ALS version (FBI-ALS).
The combination of the FBI-ALS, the FAB, and the MMSE or the MoCA-P or both could effectively screen comorbid dementia, cognitive and behavioral impairment in ALS but this implicates a limited specificity. And the FAB needed to be validated in large Chinese sample.
The combination of the FBI-ALS, the FAB, and the MMSE or the MoCA-P or both could effectively screen comorbid dementia, cognitive and behavioral impairment in ALS but this implicates a limited specificity. And the FAB needed to be validated in large Chinese sample.
Eulerian magnification amplifies very small movements in video, revealing otherwise invisible motion. This raises the possibility that it could enable clinician visualisation of subclinical tremor using a standard camera. We tested whether Eulerian magnification of apparently atremulous hands reveals a Parkinsonian tremor more frequently in Parkinson's than in controls.
We applied Eulerian magnification to smartphone video of 48 hands that appeared atremulous during recording (22 hands from 11 control participants, 26 hands from 17 idiopathic Parkinson's participants). Videos were rated for Parkinsonian tremor appearance (yes/no) before and after Eulerian magnification by three movement disorder specialist neurologists.
The proportion of hands correctly classified as Parkinsonian or not by clinicians was significantly higher after Eulerian magnification (OR = 2.67; CI = [1.39, 5.17]; p < 0.003). Parkinsonian-appearance tremors were seen after magnification in a number of control hands, but the proporot be of direct clinical use in its current iteration.Intracranial schwannomas not originating from cranial nerves are rare. In this paper, we report a case of a 50-year-old male who presented with worsening headaches, diplopia and nausea over two years. Radiological imaging revealed a large tumour arising from the olfactory groove region with a preoperative diagnosis of olfactory groove meningioma (OGM). Intraoperatively, the tumour originated from the region of the attachment of the falx to the crista galli. The patient recovered without complication and histopathology reported an unexpected diagnosis of WHO Grade 1 schwannoma. However, as olfactory groove schwannomas (OGSs) cannot be distinguished from olfactory ensheathing cell tumours (OECTs), it is possible that the tumour could have been either an OGS or an OECT. Distinguishing between OGSs, OECTs and OGMs preoperatively is difficult. OGMs exhibit distinct histopathological features from OGSs/OECTs, however, OGSs and OECTs currently cannot be distinguished from each other. Here, we review the literature to discuss the differentiating features and cellular origins of these three tumours.
