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RISS 인기검색어
- 검색키워드
- 저자 : Laere (검색결과 6 건)
- 무료
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Assessment of Cognition in Schizophrenia Using Trail Making Test: A Meta-Analysis
Erna Laere,Shiau Foon Tee,Pek Yee Tang 대한신경정신의학회 2018 PSYCHIATRY INVESTIGATION Vol.15 No.10
Objective: The present meta-analysis aimed to analyze the cognitive performance of schizophrenia patients measured by Trail Making Tests (TMT) and the contribution of socio-demographic factors to cognitive impairments. Methods: PubMed and PsycARTICLES databases were searched for the studies published between January 1985 and November 2017. Data were drawn from 19 studies encompassing 1095 patients and 324 controls. The effect size and heterogeneity were assessed with Comprehensive Meta-Analysis version 2 using random-effect model. Results: Overall, the results showed that the schizophrenia patients performed significantly (p<0.001) worse than healthy controls in both TMT-A and B. However, concurrent substance abuse, clinical status (inpatient or outpatient), duration of education and duration of illness were not associated with cognitive impairment among the schizophrenia patients. Conclusion: The present meta-analysis confirmed the cognitive processing speed and flexibility of schizophrenia patients were impaired. However, their duration of education, duration of illness and clinical status (inpatient or outpatient) were not the risk factors.
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Assessment of Cognition in Schizophrenia Using Trail Making Test: A Meta-Analysis
Erna Laere,Shiau Foon Tee,Pek Yee Tang 대한신경정신의학회 2018 PSYCHIATRY INVESTIGATION Vol.15 No.11
Objective The present meta-analysis aimed to analyze the cognitive performance of schizophrenia patients measured by Trail Making Tests (TMT) and the contribution of socio-demographic factors to cognitive impairments. Methods PubMed and PsycARTICLES databases were searched for the studies published between January 1985 and November 2017. Data were drawn from 19 studies encompassing 1095 patients and 324 controls. The effect size and heterogeneity were assessed with Comprehensive Meta-Analysis version 2 using random-effect model. Results Overall, the results showed that the schizophrenia patients performed significantly (p<0.001) worse than healthy controls in both TMT-A and B. However, concurrent substance abuse, clinical status (inpatient or outpatient), duration of education and duration of illness were not associated with cognitive impairment among the schizophrenia patients. Conclusion The present meta-analysis confirmed the cognitive processing speed and flexibility of schizophrenia patients were impaired. However, their duration of education, duration of illness and clinical status (inpatient or outpatient) were not the risk factors.
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Utilizing Natural and Engineered Peroxiredoxins As Intracellular Peroxide Reporters
Laer, Koen Van,Dick, Tobias P. Korean Society for Molecular and Cellular Biology 2016 Molecules and cells Vol.39 No.1
It is increasingly apparent that nature evolved peroxiredoxins not only as $H_2O_2$ scavengers but also as highly sensitive $H_2O_2$ sensors and signal transducers. Here we ask whether the $H_2O_2$ sensing role of Prx can be exploited to develop probes that allow to monitor intracellular $H_2O_2$ levels with unprecedented sensitivity. Indeed, simple gel shift assays visualizing the oxidation of endogenous 2-Cys peroxiredoxins have already been used to detect subtle changes in intracellular $H_2O_2$ concentration. The challenge however is to create a genetically encoded probe that offers real-time measurements of $H_2O_2$ levels in intact cells via the Prx oxidation state. We discuss potential design strategies for Prx-based probes based on either the redoxsensitive fluorophore roGFP or the conformation-sensitive fluorophore cpYFP. Furthermore, we outline the structural and chemical complexities which need to be addressed when using Prx as a sensing moiety for $H_2O_2$ probes. We suggest experimental strategies to investigate the influence of these complexities on probe behavior. In doing so, we hope to stimulate the development of Prx-based probes which may spearhead the further study of cellular $H_2O_2$ homeostasis and Prx signaling.
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Utilizing Natural and Engineered Peroxiredoxins As Intracellular Peroxide Reporters
Tobias P. Dick,Koen Van Laer 한국분자세포생물학회 2016 Molecules and cells Vol.39 No.1
It is increasingly apparent that nature evolved peroxiredoxins not only as H2O2 scavengers but also as highly sensitive H2O2 sensors and signal transducers. Here we ask whether the H2O2 sensing role of Prx can be exploited to develop probes that allow to monitor intracellular H2O2 levels with unprecedented sensitivity. Indeed, simple gel shift assays visualizing the oxidation of endogenous 2-Cys peroxiredoxins have already been used to detect subtle changes in intracellular H2O2 concentration. The challenge however is to create a genetically encoded probe that offers real-time measurements of H2O2 levels in intact cells via the Prx oxidation state. We discuss potential design strategies for Prx-based probes based on either the redoxsensitive fluorophore roGFP or the conformation-sensitive fluorophore cpYFP. Furthermore, we outline the structural and chemical complexities which need to be addressed when using Prx as a sensing moiety for H2O2 probes. We suggest experimental strategies to investigate the influence of these complexities on probe behavior. In doing so, we hope to stimulate the development of Prx-based probes which may spearhead the further study of cellular H2O2 homeostasis and Prx signaling.
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