Hermansenhaastrup6472
Significance.Through EEGdenoiseNet, we hope to accelerate the development of the emerging field of DL-based EEG denoising. The dataset and code are available athttps//github.com/ncclabsustech/EEGdenoiseNet.Hypoxic adaptation mediated by HIF transcription factors requires mitochondria, which have been implicated in regulating HIF1α stability in hypoxia by distinct models that involve consuming oxygen or alternatively converting oxygen into the second messenger peroxide. Here, we use a ratiometric, peroxide reporter, HyPer to evaluate the role of peroxide in regulating HIF1α stability. We show that antioxidant enzymes are neither homeostatically induced nor are peroxide levels increased in hypoxia. Additionally, forced expression of diverse antioxidant enzymes, all of which diminish peroxide, had disparate effects on HIF1α protein stability. Moreover, decrease in lipid peroxides by glutathione peroxidase-4 or superoxide by mitochondrial SOD, failed to influence HIF1α protein stability. These data show that mitochondrial, cytosolic or lipid ROS were not necessary for HIF1α stability, and favor a model where mitochondria contribute to hypoxic adaptation as oxygen consumers.microRNAs associate with Argonaute proteins, forming the microRNA-induced silencing complex (miRISC), to repress target gene expression post-transcriptionally. Although microRNAs are critical regulators in mammalian cell differentiation, our understanding of how microRNA machinery, such as the miRISC, are regulated during development is still limited. We previously showed that repressing the production of one Argonaute protein, Ago2, by Trim71 is important for mouse embryonic stem cells (mESCs) self-renewal (Liu et al., 2021). Here, we show that among the four Argonaute proteins in mammals, Ago2 is the major developmentally regulated Argonaute protein in mESCs. Moreover, in pluripotency, besides the Trim71-mediated regulation of Ago2 (Liu et al., 2021), Mir182/Mir183 also repress Ago2. Specific inhibition of this microRNA-mediated repression results in stemness defects and accelerated differentiation through the let-7 microRNA pathway. These results reveal a microRNA-mediated regulatory circuit on microRNA machinery that is critical to maintaining pluripotency.Evolutionary adaptation to a constant environment is driven by the accumulation of mutations which can have a range of unrealized pleiotropic effects in other environments. These pleiotropic consequences of adaptation can influence the emergence of specialists or generalists, and are critical for evolution in temporally or spatially fluctuating environments. While many experiments have examined the pleiotropic effects of adaptation at a snapshot in time, very few have observed the dynamics by which these effects emerge and evolve. Here, we propagated hundreds of diploid and haploid laboratory budding yeast populations in each of three environments, and then assayed their fitness in multiple environments over 1000 generations of evolution. We find that replicate populations evolved in the same condition share common patterns of pleiotropic effects across other environments, which emerge within the first several hundred generations of evolution. However, we also find dynamic and environment-specific variability within these trends variability in pleiotropic effects tends to increase over time, with the extent of variability depending on the evolution environment. These results suggest shifting and overlapping contributions of chance and contingency to the pleiotropic effects of adaptation, which could influence evolutionary trajectories in complex environments that fluctuate across space and time.Surgical nerve transfers are used to efficiently treat peripheral nerve injuries, neuromas, phantom limb pain or improve bionic prosthetic control. Commonly, one donor nerve is transferred to one target muscle. However, the transfer of multiple nerves onto a single target muscle may increase the number of muscle signals for myoelectric prosthetic control and facilitate the treatment of multiple neuromas. Currently, no experimental models are available for multiple nerve transfers to a common target muscle in the upper extremity. This study describes a novel experimental model to investigate the neurophysiological effects of peripheral double nerve transfers. For this purpose, we developed a forelimb model to enable tension-free transfer of one or two donor nerves in the upper extremity. Anatomic dissections were performed to design the double nerve transfer model (n=8). In 62 male Sprague-Dawley rats the ulnar nerve of the antebrachium alone (n=30) or together with the anterior interosseus nerve (n=32) was tr applicable. This newly developed nerve transfer model allows for the reliable and standardized investigation of neural and functional changes following the transfer of multiple donor nerves to one target muscle.
To assess the responsiveness of the Idiopathic Hypersomnia Severity Scale (IHSS) to medications and estimate the minimum clinically important difference, to report clinically relevant score ranges, and to confirm its psychometric properties and whether items need to be weighted in drug-free and treated patients with idiopathic hypersomnia (IH).
226 (166 drug-free and 60 treated) patients with IH (cross-sectional sample) completed the 14-item IHSS to quantify the severity of the three major IH symptoms (excessive daytime sleepiness, prolonged nighttime sleep and sleep inertia) and consequences; 77 untreated patients were evaluated again after treatment (longitudinal sample). Patients filled in Epworth Sleepiness Scale, Beck Depression Inventory II and European Quality of Life questionnaires.
The IHSS confirmed adequate psychometric properties with a factor analysis indicating a 3-component solution. IHSS total score was lower in treated than untreated patients, with a mean difference of 4-5 points in the cross-sectional and longitudinal samples. Distribution-based methods were used to estimate that 4 points represented the minimum clinically important difference. Four severity levels were defined with between-group differences related to treatment. The probability of having severe sleepiness, depressive symptoms and low quality of life increased with the severity level. Our results showed that IHSS item weighting was not necessary.
The IHSS is a valid and reliable tool to quantify IH symptoms, with four clinically severity score levels. The IHSS has adequate psychometric properties and can detect symptom changes after treatment. These findings should stimulate its use in clinical settings and in research studies.
The IHSS is a valid and reliable tool to quantify IH symptoms, with four clinically severity score levels. The IHSS has adequate psychometric properties and can detect symptom changes after treatment. These findings should stimulate its use in clinical settings and in research studies.
To assess early adherence to therapy with hypoglossal nerve stimulation therapy.
This is a prospective study of consecutive patients with moderate to severe OSA who underwent implantation of hypoglossal nerve stimulation therapy within a single academic practice and attended a follow up appointment after greater than 30 days of therapy use. Objective adherence data was extracted from an objective monitoring database and compared to patient characteristics.
The study population was seventy-nine subjects who were 29.1% female, with a mean age of 58.7±12.8 years old, BMI of 28.9±3.4 kg/m
and baseline AHI of 33.8±17.6 events/h. In the first 7 days after device activation, average use was 7.8 hours/night, with 91.9% of nights with greater than 4 hours of therapy use and an average of 0.2 pauses in therapy per night. These figures remained stable after 30 days of use 7.7 h/night, 91.0% of nights longer than 4 hours and 0.3 pauses per night. Objective evidence of difficulty with acclimatization was associated with age less than 60 years (OR 2.8, 95% CI 1.1-7.1, p=0.03) and a history of prior upper airway surgery (3.9, 1.2-11.9, p=0.015). Insomnia was present in thirty-one patients and was not associated with objective evidence of difficulty tolerating therapy.
Early adherence to hypoglossal nerve stimulation is excellent (92.4% > 4 hours on > 70% of nights) suggesting that the acclimatization period is straightforward in most. Younger age and a history of prior upper airway surgery appear to be associated with an increased risk of difficulty with acclimatization.
70% of nights) suggesting that the acclimatization period is straightforward in most. Younger age and a history of prior upper airway surgery appear to be associated with an increased risk of difficulty with acclimatization.
To assess variable negative external pressure (vNEP) therapy using a range of pressures and varying collar sizes and shapes to identify combinations that improve the efficacy and comfort of this emerging therapy for obstructive sleep apnea (OSA).
This prospective, open-label pilot study included 28 eligible patients (71% men) having documented moderate OSA (apnea-hypopnea index 15 ≤ AHI ≤ 30) at one sleep clinic for an overnight, in-lab sleep trial. Each participant tested at least 2 of 6 available vNEP devices during sleep periods ≥2 hours. During the assessment of AHI by polysomnography, negative pressures of -20 to -35 cmH
O were adjusted to improve each patient's response. Participants' therapeutic preferences were assessed by a questionnaire and interviews.
Twenty (71%) of the participants responded to vNEP therapy excellent response (AHI ≤ 5 events/h) was observed in 14 (50%); 6 (21%) achieved a partial response (AHI ≤ 50% baseline). click here For the 20 responders, the therapy reduced the fraction of total sleep time when peripheral oxygen saturation SpO
< 90% and improved minimum SpO
. Six patients experienced a minor, self-limited adverse event. Twenty-six participants (93%) stated that they would use vNEP nightly.
In this pilot study vNEP therapy markedly improved AHI and oxygenation in most patients with moderate OSA. The majority of participants found vNEP comfortable and preferable to prevailing OSA therapies. Further development and studies of vNEP are warranted.
ClinicalTrials.gov ID NCT04718142; Study of Variable Negative External Pressure (vNEP) in Reducing Respiratory Event in Individuals With OSA; Unique Protocol ID 20193101.
ClinicalTrials.gov ID NCT04718142; Study of Variable Negative External Pressure (vNEP) in Reducing Respiratory Event in Individuals With OSA; Unique Protocol ID 20193101.
To prospectively evaluate the effects of multimodal rheumatologic complex treatment (MRCT), a special concept of in-patient physical treatment (PT), in patients with rheumatoid arthritis (RA).
RA patients receiving a 16-day MRCT were eligible. MRCT was delivered to participants in 64 PT sessions of various modalities with a minimum of 1.400 Minutes of treatment. The primary outcome was the change in pain levels measured on a numeric rating scale (0-10) between baseline and discharge. Secondary outcomes were assessments of i) disease activity, ii) functional disabilities, iii) serum cytokine levels, iv) analgesic usage, v) patient global health and vi) patient's satisfaction with their therapeutic response to MRCT from baseline to discharge and over a 12-week follow-up.
53 RA patients completed the study and were analysed. Pain levels were reduced significantly and clinically meaningfully (mean ± standard error -2.1 ± 0.3, p<0.001). Effects of MRCT lasted up to 12 weeks after discharge. After MRCT and during the 12-week follow-up use of analgesics was reduced compared to baseline.