Despite that sleep disturbance and poor neurocognitive performance are common complaints among coronavirus disease 2019(COVID-19)survivors,few studies have focused on the effect of post-COVID-19 sleep disturbance(PCSD...Despite that sleep disturbance and poor neurocognitive performance are common complaints among coronavirus disease 2019(COVID-19)survivors,few studies have focused on the effect of post-COVID-19 sleep disturbance(PCSD)on cognitive function.This study aimed to identify the impact of PCSD on neurocognitive function and explore the associated risk factors for the worsening of this condition.This cross-sectional study was conducted via the web-based assessment in Chinese mainland.Neurocognitive function was evaluated by the modified online Integrated Cognitive Assessment(ICA)and the Number Ordering Test(NOT).Propensity score matching(PSM)was utilized to match the confounding factors between individuals with and without PCSD.Univariate analyses were performed to evaluate the effect of PCSD on neurocognitive function.The risk factors associated with worsened neurocognitive performance in PCSD individuals were explored using binary logistic regression.A total of 8692 individuals with COVID-19 diagnosis were selected for this study.Nearly half(48.80%)of the COVID-19 survivors reported sleep disturbance.After matching by PSM,a total of 3977 pairs(7954 individuals in total)were obtained.Univariate analyses revealed that PCSD was related to worse ICA and NOT performance(P<0.05).Underlying disease,upper respiratory infection,loss of smell or taste,severe pneumonia,and self-reported cognitive complaints were associated with worsened neurocognitive performance among PCSD individuals(P<0.05).Furthermore,aging,ethnicity(minority),and lower education level were found to be independent risk factors for worsened neurocognitive performance in PCSD individuals(P<0.05).PCSD was related to impaired neurocognitive performance.Therefore,appropriate prevention and intervention measures should be taken to minimize or prevent PCSD and eliminate its potential adverse effect on neurocognitive function.展开更多
Curcumin improves the learning and memory deficits in rats induced by the gp120 V3 loop. The present study cultured rat hippocampal neurons with 1 nM gp120 V3 loop and 1 μM curcumin for 24 hours. The results showed t...Curcumin improves the learning and memory deficits in rats induced by the gp120 V3 loop. The present study cultured rat hippocampal neurons with 1 nM gp120 V3 loop and 1 μM curcumin for 24 hours. The results showed that curcumin inhibited the gp120 V3 loop-induced mitochondrial membrane potential decrease, reduced the mRNA expression of the pro-apoptotic gene caspase-3, and attenuated hippocampal neuronal injury.展开更多
Background:Concussed patients have impaired reaction time(RT)and cognition following injury that may linger and impair driving performance.Limited research has used direct methods to assess driving-RT post-concussion....Background:Concussed patients have impaired reaction time(RT)and cognition following injury that may linger and impair driving performance.Limited research has used direct methods to assess driving-RT post-concussion.Our study compared driving RT during simulated scenarios between concussed and control individuals and examined driving-RT’s relationship with traditional computerized neurocognitive testing(CNT)domains.Methods:We employed a cross-sectional study among 14 concussed(15.9±9.8 days post-concussion,mean±SD)individuals and 14 healthy controls matched for age,sex,and driving experience.Participants completed a driving simulator and CNT(CNS Vital Signs)assessment within 48 h of symptom resolution.A driving-RT composite(ms)was derived from 3 simulated driving scenarios:stoplight(green to yellow),evasion(avoiding approaching vehicle),and pedestrian(person running in front of vehicle).The CNT domains included verbal and visual memory;CNT-RT(simple-,complex-,Stroop-RT individually);simple and complex attention;motor,psychomotor,and processing speed;executive function;and cognitive flexibility.Independent t tests and Hedge d effect sizes assessed driving-RT differences between groups,Pearson correlations(r)examined driving RT and CNT domain relationships among cohorts separately,and p values were controlled for false discovery rate via Benjamini-Hochberg procedures(a=0.05).Results:Concussed participants demonstrated slower driving-RT composite scores than controls(mean difference=292.86 ms;95%confidence interval(95%CI):70.18515.54;p=0.023;d=0.992).Evasion-RT(p=0.054;d=0.806),pedestrian-RT(p=0.258;d=0.312),and stoplight-RT(p=0.292;d=0.585)outcomes were not statistically significant after false-discovery rate corrections but demonstrated medium to large effect sizes for concussed deficits.Among concussed individuals,driving-RT outcomes did not significantly correlate with CNT domains(r-range:0.51 to 0.55;p>0.05).No correlations existed between driving-RT outcomes and CNT domains among control participants either(r-range:0.52 to 0.72;p>0.05).Conclusion:Slowed driving-RT composite scores and large effect sizes among concussed individuals when asymptomatic signify lingering impairment and raise driving-safety concerns.Driving-RT and CNT-RT measures correlated moderately but not statistically,which indicates that CNT-RT is not an optimal surrogate for driving RT.展开更多
基金supported by the National Key R&D Pro-gram of China(No.2021YFC2501500)the National Natural Science Foundation of China(Nos.82271525 and 82071488)the Nanfang Hospital Clinical Research Project of Southern Medical University(No.2021CR009),China。
文摘Despite that sleep disturbance and poor neurocognitive performance are common complaints among coronavirus disease 2019(COVID-19)survivors,few studies have focused on the effect of post-COVID-19 sleep disturbance(PCSD)on cognitive function.This study aimed to identify the impact of PCSD on neurocognitive function and explore the associated risk factors for the worsening of this condition.This cross-sectional study was conducted via the web-based assessment in Chinese mainland.Neurocognitive function was evaluated by the modified online Integrated Cognitive Assessment(ICA)and the Number Ordering Test(NOT).Propensity score matching(PSM)was utilized to match the confounding factors between individuals with and without PCSD.Univariate analyses were performed to evaluate the effect of PCSD on neurocognitive function.The risk factors associated with worsened neurocognitive performance in PCSD individuals were explored using binary logistic regression.A total of 8692 individuals with COVID-19 diagnosis were selected for this study.Nearly half(48.80%)of the COVID-19 survivors reported sleep disturbance.After matching by PSM,a total of 3977 pairs(7954 individuals in total)were obtained.Univariate analyses revealed that PCSD was related to worse ICA and NOT performance(P<0.05).Underlying disease,upper respiratory infection,loss of smell or taste,severe pneumonia,and self-reported cognitive complaints were associated with worsened neurocognitive performance among PCSD individuals(P<0.05).Furthermore,aging,ethnicity(minority),and lower education level were found to be independent risk factors for worsened neurocognitive performance in PCSD individuals(P<0.05).PCSD was related to impaired neurocognitive performance.Therefore,appropriate prevention and intervention measures should be taken to minimize or prevent PCSD and eliminate its potential adverse effect on neurocognitive function.
基金supported by the Natural Science Foundation of Guangdong Province, No. 9151040701000, 061050246the Science and Technology Project of Guangdong Province, No. 2010B030700016+1 种基金the Science and Technology Project of Guangzhou, No. 2010Y1-C291the National Natural Science Foundation of China, No. 81171134
文摘Curcumin improves the learning and memory deficits in rats induced by the gp120 V3 loop. The present study cultured rat hippocampal neurons with 1 nM gp120 V3 loop and 1 μM curcumin for 24 hours. The results showed that curcumin inhibited the gp120 V3 loop-induced mitochondrial membrane potential decrease, reduced the mRNA expression of the pro-apoptotic gene caspase-3, and attenuated hippocampal neuronal injury.
基金the Office of the Vice President of Research at the University of Georgia.
文摘Background:Concussed patients have impaired reaction time(RT)and cognition following injury that may linger and impair driving performance.Limited research has used direct methods to assess driving-RT post-concussion.Our study compared driving RT during simulated scenarios between concussed and control individuals and examined driving-RT’s relationship with traditional computerized neurocognitive testing(CNT)domains.Methods:We employed a cross-sectional study among 14 concussed(15.9±9.8 days post-concussion,mean±SD)individuals and 14 healthy controls matched for age,sex,and driving experience.Participants completed a driving simulator and CNT(CNS Vital Signs)assessment within 48 h of symptom resolution.A driving-RT composite(ms)was derived from 3 simulated driving scenarios:stoplight(green to yellow),evasion(avoiding approaching vehicle),and pedestrian(person running in front of vehicle).The CNT domains included verbal and visual memory;CNT-RT(simple-,complex-,Stroop-RT individually);simple and complex attention;motor,psychomotor,and processing speed;executive function;and cognitive flexibility.Independent t tests and Hedge d effect sizes assessed driving-RT differences between groups,Pearson correlations(r)examined driving RT and CNT domain relationships among cohorts separately,and p values were controlled for false discovery rate via Benjamini-Hochberg procedures(a=0.05).Results:Concussed participants demonstrated slower driving-RT composite scores than controls(mean difference=292.86 ms;95%confidence interval(95%CI):70.18515.54;p=0.023;d=0.992).Evasion-RT(p=0.054;d=0.806),pedestrian-RT(p=0.258;d=0.312),and stoplight-RT(p=0.292;d=0.585)outcomes were not statistically significant after false-discovery rate corrections but demonstrated medium to large effect sizes for concussed deficits.Among concussed individuals,driving-RT outcomes did not significantly correlate with CNT domains(r-range:0.51 to 0.55;p>0.05).No correlations existed between driving-RT outcomes and CNT domains among control participants either(r-range:0.52 to 0.72;p>0.05).Conclusion:Slowed driving-RT composite scores and large effect sizes among concussed individuals when asymptomatic signify lingering impairment and raise driving-safety concerns.Driving-RT and CNT-RT measures correlated moderately but not statistically,which indicates that CNT-RT is not an optimal surrogate for driving RT.
