The concept of liquid-solid hybrid catalyst that featuring a truly homogeneous liquid microenvironment together with insoluble solid characteristics has been established recently by our group,which enables us to conve...The concept of liquid-solid hybrid catalyst that featuring a truly homogeneous liquid microenvironment together with insoluble solid characteristics has been established recently by our group,which enables us to conveniently bridge the gap between homo-and heterogeneous catalysis.In this study,we extend this general concept to the confinement of molecular rhodium phosphine complexes,including Rh-TPPTS,Rh-TPPMS and Rh-SXP,for olefin hydroformylation reactions.A series of hybrid catalyst materials consisting a modulated liquid interior([BMIM]NTf_(2),[BMIM]PF_(6),[BMIM]BF_(4) or H_(2)O)and a permeable silica crust were fabricated through our developed Pickering emulsion-based method,showing 9.4–24.2-fold activity enhancement and significantly improved aldehyde selectivity(from 72.2%,61.8%to 86.6%)compared to their biphasic counterparts or traditional supported liquid phase system in the hydroformylation of 1-dodecene.Interestingly,the catalytic efficiency was demonstrated to be tunable by rationally engineering the thickness of porous crust and dimensions of the liquid pool.The thus-attained hybrid catalyst could also successfully catalyze the hydroformylation of a variety of olefin substrates and be recycled without a significant loss of activity for at least seven times.展开更多
Rodents have been widely used in the production of cerebral ischemia models. However, successful therapies have been proven on experimental rodent stroke model, and they have often failed to be effective when tested c...Rodents have been widely used in the production of cerebral ischemia models. However, successful therapies have been proven on experimental rodent stroke model, and they have often failed to be effective when tested clinically. Therefore, nonhuman primates were recommended as the ideal alternatives, owing to their similarities with the human cerebrovascular system, brain metabolism, grey to white matter ratio and even their rich behavioral repertoire. The present review is a thorough summary of ten methods that establish nonhuman primate models of focal cerebral ischemia; electrocoagulation, endothelin-1-induced occlusion, microvascular clip occlusion, autologous blood clot embolization, balloon inflation, microcatheter embolization, coil embolization, surgical suture embolization, suture, and photochemical induction methods. This review addresses the advantages and disadvantages of each method, as well as precautions for each model, compared nonhuman primates with rodents, different species of nonhuman primates and different modeling methods. Finally it discusses various factors that need to be considered when modelling and the method of evaluation after modelling. These are critical for understanding their respective strengths and weaknesses and underlie the selection of the optimum model.展开更多
Background:The optimal management of epilepsy includes engaging patients through education on knowledge of the disease,its treatment and diet control.Methods:This was a cross-sectional survey-based cohort study,aimed ...Background:The optimal management of epilepsy includes engaging patients through education on knowledge of the disease,its treatment and diet control.Methods:This was a cross-sectional survey-based cohort study,aimed to investigate the awareness of epilepsy in Chinese patients and to understand their dietary habits.Participants were consecutively enrolled from epileptic patients treated in a single epilepsy center from October 1,2019 to February 29,2020.A self-reported questionnaire(Cronbach’sα=0.758)consisting of 3 parts was sent to 407 patients with epilepsy.The questionnaire included items on demographic information,epilepsy features,awareness of epilepsy treatment and dietary habits.Results:About half of the patients(53.8%,219/407)thought epilepsy was curable and only 80%knew that the first choice of treatment is medication.While 58.6%of the patients with low educational level preferred the use of antiepileptic drugs(p=0.014),52.7%believed that the medication should not be stopped immediately after seizure control(p=0.026),especially after surgery(40.5%,p=0.011).Patients with lower household monthly incomes had less awareness of the use of antiepileptic drugs than patients with higher incomes:only 39.2 and 49.8%of patients with lower incomes thought that the drugs could be stopped after epilepsy surgery or seizure control,respectively,compared to 51.6 and 66.1%with higher incomes.Alcohol(86.2%),caffeine(56.8%)and strong tea(49.1%)were top three foods considered by the patients to be avoided to prevent seizures.Approximately 30.2%of patients identified at least one food that made them susceptible to seizures.Conclusions:Patient education on epilepsy,antiepileptic drugs and diet for management of seizures should be provided especially to patients with less education,lower income or inaccurate beliefs of epilepsy in Western China.展开更多
Background There is a lack of further exploration of the epileptogenic network of specific types of epilepsy,such as unilateral hippocampal sclerosis(HS),and there is an urgent need to find exact evidence to confirm t...Background There is a lack of further exploration of the epileptogenic network of specific types of epilepsy,such as unilateral hippocampal sclerosis(HS),and there is an urgent need to find exact evidence to confirm the consistency of its brain network changes.Methods We enrolled 22 mesial temporal lobe epilepsy with hippocampal sclerosis(mTLE-HS)patients to compare the differences in brain activity between 22 healthy controls(HCs)and them.Resting-state electroencephalography(EEG)was also measured.Then,we calculated the power spectral density and phase locking values in and between these electrodes.Results The results showed the increased theta power was related to the high severity of epilepsy in the temporal,parietal,and central regions in mTLE-HS patients,and there were positive correlations between theta power in the contralateral temporal region and seizure frequency.Theta power in the ipsilateral parietal lobe is positively correlated with the number of anti-seizure medications(ASMs),but not with the usage of third-generation ASMs.Meanwhile,the temporal lobe of mTLE-HS patients had more connectivity with parietal lobe and central region.展开更多
Background The COVID-19 pandemic substantially increases the risk of severe psychological distress among people with epilepsy(PWE),especially those with monthly household income<5000 RMB or with uncontrolled seizur...Background The COVID-19 pandemic substantially increases the risk of severe psychological distress among people with epilepsy(PWE),especially those with monthly household income<5000 RMB or with uncontrolled seizures.Patients with Kessler scores>12 should consult a psychiatrist,especially during major disasters.This study was aimed to compare the frequency of psychological distress among Chinese PWE before and during the outbreak of the SARS-CoV-2 Omicron variant,and to identify risk factors for such distress.Methods In this prospective study,we collected sociodemographic data of PWE aged>14 years,who were treated at our center during December 1 to 15,2022.All participants completed the 6-item Kessler Psychological Distress Scale before the outbreak and again during the outbreak.Health visitors who were unrelated to those patients during the outbreak were included as a control.Multivariate logistic regression analysis was performed to identify risk factors of severe psychological distress and its exacerbation.Results Of the 223 PWE,127 were tested positive for SARS-CoV-2,while 174 of 218 controls were positive for SARS-CoV-2.The neurological symptoms were similar between PWE and controls with SARS-CoV-2.The average Kessler score of PWE was significantly higher during the outbreak than before it(9.93±3.98 vs.8.52±0.23,P<0.001).The average score of controls during the outbreak(5.146±0.35,P<0.001)was significantly lower than that of the PWE.We identified three independent predictors for severe psychological distress in PWE during the outbreak,i.e.,monthly household income<5000 RMB(OR=0.252,95%CI 0.064–0.998,P=0.048),severe psychological distress before the outbreak(OR=0.067,95%CI 0.026–0.174,P<0.001),and seizure onset within 30 days before the assessment during the outbreak(OR=0.356,95%CI 0.157–0.805,P=0.013).Of the three predictors,the last one was also an independent predictor for exacerbation of psychological distress during the outbreak(OR=0.302,95%CI 0.123–0.741,P=0.009).Conclusions Our analysis suggests that the COVID-19 pandemic has substantially increased psychological distress of individuals with epilepsy,regardless of the viral infection or not.Various neurological symptoms similar to those of“long COVID”appeared for the first time among these individuals during the Omicron outbreak,highlighting the need for clinicians to screen carefully for this condition.Management of epilepsy during the pandemic or a similar major disaster should focus on the control of seizures and maintenance of mental health,especially among those with monthly household incomes below 5000 RMB,suffering uncontrolled seizures and having a history of severe psychological distress.展开更多
Background:Voltage-gated sodium channels are the targets of many commonly used antiepileptic drugs.NaV1.6,encoded by Scn8a,increased in chronic mesial temporal epilepsy animal models and co-localized with Ankyrin-G,en...Background:Voltage-gated sodium channels are the targets of many commonly used antiepileptic drugs.NaV1.6,encoded by Scn8a,increased in chronic mesial temporal epilepsy animal models and co-localized with Ankyrin-G,encoded by Ank3.We hypothesized that inhibition of Ank3 transcription by siRNA decrease the expression of NaV1.6.Results:We characterized expression of the target genes in hippocampal neuron HT22 cells by Real time-PCR.The melt peak in the resolution curve of Scn1a,Scn8a and Ank3 were all unique.Ank3 transcription was interfered and the relative Ank3 mRNA levels of the three interfered groups compared to GAPDH were 0.89±0.13,0.52±0.07 and 0.26±0.05 while that of the negative control group was 1.01±0.08(P<0.05).When Ank3 transcription was inhibited by siRNA,the relative mRNA levels of Scn8a decreased in the three groups(0.91±0.09,0.33±0.06 and 0.25±0.05),compared to the negative control group(1.10±0.09).Tested by Western blotting,protein levels of ankyrinG and Nav1.6 decreased after ank3-siRNA.Ankyrin-G in negative control group,group1,group2 and group1+2 were 0.813±0.051,0.744±0.041,0.477±0.055 and 0.351±0.190 respectively(P<0.01)while Nav1.6 were 0.934±0.036,0.867±0.078,0.498±0.070 and 0.586±0.180(P<0.01).The quantity analysis of immunofluorescence showed significant decrease of ankyrin-G and Nav1.6(Student’s test,P=0.046 and 0.016 respectively).Conclusion:We therefore concluded that in HT22 cells the expression of Nav1.6 was down-regulated by Ank3 RNA interference.展开更多
Background:The high prevalence of nonsuicidal self-injury(NSSI)in youths demonstrates a substantial population-level burden on society.NSSI is often associated with emotional and social skill deficits.To date,several ...Background:The high prevalence of nonsuicidal self-injury(NSSI)in youths demonstrates a substantial population-level burden on society.NSSI is often associated with emotional and social skill deficits.To date,several studies have aimed to identify the underlying neural mechanism of those deficits in NSSI by using functional magnetic resonance imaging(fMRI).However,their conclusions display poor consistency.Objective:We aimed to conduct ameta-analysis using activation likelihood estimation(ALE)for fMRI data based on emotional and cognitive tasks to clarify the underlying neural processing deficits of NSSI.Methods:We searched for MRI studies of NSSI in the PubMed,Cochrane,and Embase databases.We identified significant foci for the included studies and conducted two ALE meta-analyses as follows:(i)activation for the NSSI contrast healthy control group and(ii)deactivation for the NSSI contrast healthy controls.Considering the diverse sex composition of study participants and possible bias from one large sample study,we conducted sensitivity analyses for the meta-analysis.Results:Nine studies comprising 359 participants were included,and the results demonstrated substantial activation in NSSI patients compared with healthy controls in two clusters located in the right medial frontal gyrus extending to the rostral anterior cingulate and the left inferior frontal gyrus extending to the insula.Conclusions:The results suggest that individuals with NSSI show brain activity alterations that underpin their core symptoms,including poor emotional regulation and reward processing deficits.Our findings provide new insights into the neuralmechanism of NSSI,whichmay serve as functional biomarkers for developing effective diagnosis and therapeutic interventions for these patients.展开更多
文摘The concept of liquid-solid hybrid catalyst that featuring a truly homogeneous liquid microenvironment together with insoluble solid characteristics has been established recently by our group,which enables us to conveniently bridge the gap between homo-and heterogeneous catalysis.In this study,we extend this general concept to the confinement of molecular rhodium phosphine complexes,including Rh-TPPTS,Rh-TPPMS and Rh-SXP,for olefin hydroformylation reactions.A series of hybrid catalyst materials consisting a modulated liquid interior([BMIM]NTf_(2),[BMIM]PF_(6),[BMIM]BF_(4) or H_(2)O)and a permeable silica crust were fabricated through our developed Pickering emulsion-based method,showing 9.4–24.2-fold activity enhancement and significantly improved aldehyde selectivity(from 72.2%,61.8%to 86.6%)compared to their biphasic counterparts or traditional supported liquid phase system in the hydroformylation of 1-dodecene.Interestingly,the catalytic efficiency was demonstrated to be tunable by rationally engineering the thickness of porous crust and dimensions of the liquid pool.The thus-attained hybrid catalyst could also successfully catalyze the hydroformylation of a variety of olefin substrates and be recycled without a significant loss of activity for at least seven times.
基金supported by the National Natural Science Foundation of China,No.81000852 and 81301677the AHA Award,No.17POST32530004+1 种基金the Supporting Project of Science & Technology of Sichuan Province of China,No.2012SZ0140the Research Foundation of Zhejiang Province of China,No.201022896
文摘Rodents have been widely used in the production of cerebral ischemia models. However, successful therapies have been proven on experimental rodent stroke model, and they have often failed to be effective when tested clinically. Therefore, nonhuman primates were recommended as the ideal alternatives, owing to their similarities with the human cerebrovascular system, brain metabolism, grey to white matter ratio and even their rich behavioral repertoire. The present review is a thorough summary of ten methods that establish nonhuman primate models of focal cerebral ischemia; electrocoagulation, endothelin-1-induced occlusion, microvascular clip occlusion, autologous blood clot embolization, balloon inflation, microcatheter embolization, coil embolization, surgical suture embolization, suture, and photochemical induction methods. This review addresses the advantages and disadvantages of each method, as well as precautions for each model, compared nonhuman primates with rodents, different species of nonhuman primates and different modeling methods. Finally it discusses various factors that need to be considered when modelling and the method of evaluation after modelling. These are critical for understanding their respective strengths and weaknesses and underlie the selection of the optimum model.
基金supported by the National Key R&D Program of China(2017YFC0907702 and 2017YFC0907705).
文摘Background:The optimal management of epilepsy includes engaging patients through education on knowledge of the disease,its treatment and diet control.Methods:This was a cross-sectional survey-based cohort study,aimed to investigate the awareness of epilepsy in Chinese patients and to understand their dietary habits.Participants were consecutively enrolled from epileptic patients treated in a single epilepsy center from October 1,2019 to February 29,2020.A self-reported questionnaire(Cronbach’sα=0.758)consisting of 3 parts was sent to 407 patients with epilepsy.The questionnaire included items on demographic information,epilepsy features,awareness of epilepsy treatment and dietary habits.Results:About half of the patients(53.8%,219/407)thought epilepsy was curable and only 80%knew that the first choice of treatment is medication.While 58.6%of the patients with low educational level preferred the use of antiepileptic drugs(p=0.014),52.7%believed that the medication should not be stopped immediately after seizure control(p=0.026),especially after surgery(40.5%,p=0.011).Patients with lower household monthly incomes had less awareness of the use of antiepileptic drugs than patients with higher incomes:only 39.2 and 49.8%of patients with lower incomes thought that the drugs could be stopped after epilepsy surgery or seizure control,respectively,compared to 51.6 and 66.1%with higher incomes.Alcohol(86.2%),caffeine(56.8%)and strong tea(49.1%)were top three foods considered by the patients to be avoided to prevent seizures.Approximately 30.2%of patients identified at least one food that made them susceptible to seizures.Conclusions:Patient education on epilepsy,antiepileptic drugs and diet for management of seizures should be provided especially to patients with less education,lower income or inaccurate beliefs of epilepsy in Western China.
基金National Key R&D Program of China(2022YFC2503801)Cadre Health Care Project of the Sichuan Provincial Department of Health(2023–110)National College Student Innovation and Entrepreneurship Training Program(C2024131786).
文摘Background There is a lack of further exploration of the epileptogenic network of specific types of epilepsy,such as unilateral hippocampal sclerosis(HS),and there is an urgent need to find exact evidence to confirm the consistency of its brain network changes.Methods We enrolled 22 mesial temporal lobe epilepsy with hippocampal sclerosis(mTLE-HS)patients to compare the differences in brain activity between 22 healthy controls(HCs)and them.Resting-state electroencephalography(EEG)was also measured.Then,we calculated the power spectral density and phase locking values in and between these electrodes.Results The results showed the increased theta power was related to the high severity of epilepsy in the temporal,parietal,and central regions in mTLE-HS patients,and there were positive correlations between theta power in the contralateral temporal region and seizure frequency.Theta power in the ipsilateral parietal lobe is positively correlated with the number of anti-seizure medications(ASMs),but not with the usage of third-generation ASMs.Meanwhile,the temporal lobe of mTLE-HS patients had more connectivity with parietal lobe and central region.
基金funded by the National Key R&D Program of China(2022YFC2503801)the Cadre Health Care Project of the Sichuan Provincial Department of Health(2023-110)the West China Nursing Discipline Development Special Fund Project,Sichuan University(HXHL21032).
文摘Background The COVID-19 pandemic substantially increases the risk of severe psychological distress among people with epilepsy(PWE),especially those with monthly household income<5000 RMB or with uncontrolled seizures.Patients with Kessler scores>12 should consult a psychiatrist,especially during major disasters.This study was aimed to compare the frequency of psychological distress among Chinese PWE before and during the outbreak of the SARS-CoV-2 Omicron variant,and to identify risk factors for such distress.Methods In this prospective study,we collected sociodemographic data of PWE aged>14 years,who were treated at our center during December 1 to 15,2022.All participants completed the 6-item Kessler Psychological Distress Scale before the outbreak and again during the outbreak.Health visitors who were unrelated to those patients during the outbreak were included as a control.Multivariate logistic regression analysis was performed to identify risk factors of severe psychological distress and its exacerbation.Results Of the 223 PWE,127 were tested positive for SARS-CoV-2,while 174 of 218 controls were positive for SARS-CoV-2.The neurological symptoms were similar between PWE and controls with SARS-CoV-2.The average Kessler score of PWE was significantly higher during the outbreak than before it(9.93±3.98 vs.8.52±0.23,P<0.001).The average score of controls during the outbreak(5.146±0.35,P<0.001)was significantly lower than that of the PWE.We identified three independent predictors for severe psychological distress in PWE during the outbreak,i.e.,monthly household income<5000 RMB(OR=0.252,95%CI 0.064–0.998,P=0.048),severe psychological distress before the outbreak(OR=0.067,95%CI 0.026–0.174,P<0.001),and seizure onset within 30 days before the assessment during the outbreak(OR=0.356,95%CI 0.157–0.805,P=0.013).Of the three predictors,the last one was also an independent predictor for exacerbation of psychological distress during the outbreak(OR=0.302,95%CI 0.123–0.741,P=0.009).Conclusions Our analysis suggests that the COVID-19 pandemic has substantially increased psychological distress of individuals with epilepsy,regardless of the viral infection or not.Various neurological symptoms similar to those of“long COVID”appeared for the first time among these individuals during the Omicron outbreak,highlighting the need for clinicians to screen carefully for this condition.Management of epilepsy during the pandemic or a similar major disaster should focus on the control of seizures and maintenance of mental health,especially among those with monthly household incomes below 5000 RMB,suffering uncontrolled seizures and having a history of severe psychological distress.
基金the National Nature Science foundation(81000554)Guangdong Nature Science foundation(2018A030313345)the Science and Technology Foundation of Guangdong Province(2008B030301058).
文摘Background:Voltage-gated sodium channels are the targets of many commonly used antiepileptic drugs.NaV1.6,encoded by Scn8a,increased in chronic mesial temporal epilepsy animal models and co-localized with Ankyrin-G,encoded by Ank3.We hypothesized that inhibition of Ank3 transcription by siRNA decrease the expression of NaV1.6.Results:We characterized expression of the target genes in hippocampal neuron HT22 cells by Real time-PCR.The melt peak in the resolution curve of Scn1a,Scn8a and Ank3 were all unique.Ank3 transcription was interfered and the relative Ank3 mRNA levels of the three interfered groups compared to GAPDH were 0.89±0.13,0.52±0.07 and 0.26±0.05 while that of the negative control group was 1.01±0.08(P<0.05).When Ank3 transcription was inhibited by siRNA,the relative mRNA levels of Scn8a decreased in the three groups(0.91±0.09,0.33±0.06 and 0.25±0.05),compared to the negative control group(1.10±0.09).Tested by Western blotting,protein levels of ankyrinG and Nav1.6 decreased after ank3-siRNA.Ankyrin-G in negative control group,group1,group2 and group1+2 were 0.813±0.051,0.744±0.041,0.477±0.055 and 0.351±0.190 respectively(P<0.01)while Nav1.6 were 0.934±0.036,0.867±0.078,0.498±0.070 and 0.586±0.180(P<0.01).The quantity analysis of immunofluorescence showed significant decrease of ankyrin-G and Nav1.6(Student’s test,P=0.046 and 0.016 respectively).Conclusion:We therefore concluded that in HT22 cells the expression of Nav1.6 was down-regulated by Ank3 RNA interference.
基金supported by the Sichuan Provincial Science and Technology Support Program(Grant ID:2019YFS0218,2020YFS0587).
文摘Background:The high prevalence of nonsuicidal self-injury(NSSI)in youths demonstrates a substantial population-level burden on society.NSSI is often associated with emotional and social skill deficits.To date,several studies have aimed to identify the underlying neural mechanism of those deficits in NSSI by using functional magnetic resonance imaging(fMRI).However,their conclusions display poor consistency.Objective:We aimed to conduct ameta-analysis using activation likelihood estimation(ALE)for fMRI data based on emotional and cognitive tasks to clarify the underlying neural processing deficits of NSSI.Methods:We searched for MRI studies of NSSI in the PubMed,Cochrane,and Embase databases.We identified significant foci for the included studies and conducted two ALE meta-analyses as follows:(i)activation for the NSSI contrast healthy control group and(ii)deactivation for the NSSI contrast healthy controls.Considering the diverse sex composition of study participants and possible bias from one large sample study,we conducted sensitivity analyses for the meta-analysis.Results:Nine studies comprising 359 participants were included,and the results demonstrated substantial activation in NSSI patients compared with healthy controls in two clusters located in the right medial frontal gyrus extending to the rostral anterior cingulate and the left inferior frontal gyrus extending to the insula.Conclusions:The results suggest that individuals with NSSI show brain activity alterations that underpin their core symptoms,including poor emotional regulation and reward processing deficits.Our findings provide new insights into the neuralmechanism of NSSI,whichmay serve as functional biomarkers for developing effective diagnosis and therapeutic interventions for these patients.
