1,644 research outputs found

    Genome-wide analysis to predict protein sequence variations that change phosphorylation sites or their corresponding kinases

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    We define phosphovariants as genetic variations that change phosphorylation sites or their interacting kinases. Considering the essential role of phosphorylation in protein functions, it is highly likely that phosphovariants change protein functions and may constitute a proportion of the mechanisms by which genetic variations cause individual differences or diseases. We categorized phosphovariants into three subtypes and developed a system that predicts them. Our method can be used to screen important polymorphisms and help to identify the mechanisms of genetic diseases

    Pressure-Sensitive Adhesives for Flexible Display Applications

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    Pressure-sensitive adhesives (PSA) have been used in electronics for not only attachment of two materials but also shock absorption, thermal and electrical conductivity, electromagnetic shielding, and optical property. Optically clear adhesives (OCA) have been used as a core material for optical performance of display. In addition to basic properties of OCA such as adhesion strength, transmittance, haze, and reliability, it has required dielectric constant, gap filling, and anticorrosion according to a substrate. However, the structural and functional changes of flexible display bring challenges to OCA that protects vulnerable components such as thin-film transistor, OLED, and thin-film encapsulation by stress dispersion and adjustment of a neutral plane. At the same time, flexibility and existing properties are essential. In this chapter, the development of components and performance of OCA, and evaluation methods will be discussed

    Acupuncture in sham device controlled trials may not be as effective as acupuncture in the real world: a preliminary network meta-analysis of studies of acupuncture for hot flashes in menopausal women

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    Background: Randomised controlled trials of acupuncture performed using sham interventions to control for the placebo effect have mostly used two types of sham techniques: techniques with minimal insertion of acupuncture needles with no additional stimulation (shallow needling control) and techniques with sham acupuncture devices that do not penetrate the skin (sham device control). To achieve successful blinding, sham device controlled acupuncture trials also use the acupuncture base unit in the verum acupuncture group, but in the shallow needling control trials this is not necessary for the verum acupuncture treatment. Objective: In this study, we analysed the estimated comparative effectiveness of these two verum acupuncture modalities in studies of acupuncture for menopausal hot flashes that used two types of sham control treatments. Methods: We conducted a network meta-analysis that included randomised controlled trials of acupuncture for hot flashes. Electronic databases, including Medline, Embase, Cochrane Library and AMED, were searched through March 2017. Data were extracted using a predefined data extraction tool by two independent reviewers. The risk of bias was assessed using the Cochrane risk of bias tool for randomised controlled trials. A five-node network meta-analysis was conducted based on the frequentist framework. Results: Eight studies were included in this review. From the network meta-analysis, we found that verum acupuncture in the shallow needling controlled trials was more effective than verum acupuncture in the sham device controlled trials (SMD −7.27, 95% CI−9.11 to −5.43). Significant heterogeneity and inconsistency were not observed among the included studies or the comparisons. Conclusions: From this preliminary analysis, we found that different types of verum acupuncture may have different effect sizes with respect to the severity of menopausal hot flashes.publishedVersio

    Plausible Mechanism of Sham Acupuncture Based on Biomarkers: A Systematic Review of Randomized Controlled Trials

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    Introduction: Sham acupuncture was developed to be used as an inert control intervention in clinical trials of acupuncture. However, controversies exist regarding the validity of sham acupuncture. In this systematic review (SR) of acupuncture trials, we assessed whether serum biomarkers showed significant differences after sham and verum acupuncture treatments. Methods: Any acupuncture clinical trials that evaluated serum biomarker changes between sham acupuncture and verum acupuncture were included in this review. Relevant literature was searched in the PubMed database, EMBASE, and The Cochrane Central Register of Controlled Trials (CENTRAL) database from inception until June 2021. The Cochrane risk of bias was assessed. Summary effect estimates for each biomarker between groups were calculated with a random effect model. Results: From 51 sham acupuncture trials, we found that there were no significant differences in most of the 36 serum biomarkers after sham acupuncture and verum acupuncture needling. Only VEGF, IG-E, TNF-a, NGF, GABA, NPY, and VIP serum levels were identified as being different between the groups. The overall risk of bias of the included studies and the limited numbers of studies for meta-analysis do not strongly support the results of this SR. Conclusion: Sham acupuncture techniques might have similar effects on biomarkers as the so-called “real acupuncture” techniques, which indicates that sham acupuncture, as an inert intervention similar to a placebo drug, needs to be reconsidered. Systematic Review PROSPERO Registration: identifier [CRD42021260889].publishedVersio

    Descriptions of qi deficiency and qi stagnation in traditional East Asian medicine: A comparison of Asian and Western sources

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    Introduction - In a previous study, evidence was found of the variability of signs/symptoms (s/s) of blood stasis syndrome among texts of Chinese and Asian origin and English language texts including evidence of the differences between non-Asian and Asian patients. In the current study the diagnostic patterns of qi deficiency (QD) and qi stagnation (QS) were examined to see if similar results could be found. Methods - The study consisted of two phases – a search of libraries and a search of electronic databases, and searching for texts describing QD and QS s/s ensuring inclusion of Asian origin texts (principally Chinese) and Western origin texts. More commonly mentioned s/s were compared for each type of source and across all sources. Results - Study one: From the 21 included QD texts, six s/s were generally agreed upon with three more commonly mentioned in Western origin texts, three more commonly mentioned in Chinese origin texts. From the 17 included QS texts, three s/s were more generally agreed upon with three more commonly mentioned in Western origin texts. Study two: Comparing s/s in 13 QD studies, five were mentioned by more than half the studies. Comparing six QS studies, six s/s were more generally agreed upon. In a comparison of s/s for QD mentioned by Western and Chinese origin texts and the Asian studies, three were mentioned by >50% sources, one more often by Chinese texts, three more often by Western texts and one more often by Asian studies. In a comparison of s/s for QS mentioned by Western and Chinese origin texts and the Asian studies, two were mentioned by >75%, two more often by Western texts and two more often by Asian studies. Conclusion - English language texts and studies describing QD and QS s/s were examined. Evidence of agreement on a few s/s were identified. English origin texts showed differences in texts originating from Asia, which may support the hypothesis that QD and QS may manifest differently among Western and Asian patients

    Historical perspectives on using sham acupuncture in acupuncture clinical trials

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    Background: Trials of acupuncture in the West began before textbooks about acupuncture were generally available. This placed trials at risk of possible faulty assumptions about the practice of acupuncture and adoption of problematic research assumptions and methods. Further, this lack of information has had an influence on the theories of developing a valid and reliable sham control treatment in clinical trials of acupuncture. This commentary explores these issues. Methods: Literature review focussing on the time line of developments in the field, developments of sham interventions and use thereof and knowledge of physiological effects of needling. Results: Early trials demonstrated a lack of knowledge about acupuncture. As the methodology of trials improved, new sham treatment methods were developed and adopted; however, the sham treatment methods were implemented without physiological studies exploring their potential physiological effects and without examining the broader practice of acupuncture internationally. Conclusions: Mistaken assumptions about the practice of acupuncture reinforced by paucity of physiological investigations are factors that led to use of inappropriate sham interventions for acupuncture trials. These not only lead to confusing or misleading trial results, they, as far as we can see underestimate the effects of acupuncture leading to bias against acupuncture. There are significant problems with sham interventions and how they are applied in trials of acupuncture. Further research is needed to explore the effects of this both for future trials and for interpreting existing evidence.publishedVersio

    PREFACE

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    Management of Adult Blunt Renal Injury: A 10-Year Retrospective Review at a Single Institution

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    Purpose Renal injury occurs in up to 5% of trauma cases and the kidney is the third most wounded abdominal organ. The study objective was to analyze clinical characteristics of patients with blunt renal trauma and review the treatment of high-grade blunt renal injuries. Methods The medical charts of trauma patients who visited Haeundae Paik Hospital between March 2010 and February 2020 were retrospectively analyzed. Data on demographics, injury patterns, clinical presentation, management, and outcomes were analyzed. Results A total of 68 patients with renal trauma were included in this study. The most common renal injury was Grade III (n = 27, 39.7%). Falling was the predominant mechanism of injury (n = 33, 48.5%), and 23.5% (n = 16) of patients sustained isolated renal trauma. Organ damage related to kidney injury included chest injury (57.4%, n = 39) and abdominal or pelvic content injury (48.5%, n = 33). The overall mortality rate was 2.9% (n = 2). There were 45 cases of high-grade renal trauma (AAST Kidney injury scale Grade III–V). There was no statistical difference in the outcomes of high-grade (n = 44, 97.8%) and low-grade (n = 23, 100%) renal trauma patients who received nonoperative treatment (p = 0.511). Variables did not differ significantly, except for the injury severity score which was statistically significantly different between low-grade and high-grade renal trauma patients (p = 0.001). Conclusion Most patients with traumatic renal injury, even those with high-grade injury, can be managed by nonoperative treatment, and have a good prognosis
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