Benign paroxysmal positional vertigo(BPPV)represents the most common form of positional vertigo.It is caused by dislodged otoconia that freely float in the semicircular canals(canalolithiasis)or attach to the cupula(c...Benign paroxysmal positional vertigo(BPPV)represents the most common form of positional vertigo.It is caused by dislodged otoconia that freely float in the semicircular canals(canalolithiasis)or attach to the cupula(cupulolithiasis).A cupulolithiasis-type(or a heavy cupula-type)of BPPV implicating the lateral semicircular canal(LSCC)exhibits persistent ageotropic direction-changing positional nystagmus(DCPN)in a head-roll test.However,in some cases,unlike any type of BPPV,persistent geotropic DCPN cannot be explained by any mechanisms of BPPV,and don’t fit the current classifications.Recently,the notion of light cupula has been introduced to refer to the persistent geotropic DCPN.In this study,we looked at the clinical features of light cuplula and discussed the possible mechanisms and therapeutic strategies of the condition.The notion of light cupula is a helpful addition to the theory of peripheral positional vertigo and nystagmus.展开更多
Objective To examine the effect of multisensory exercise on balance disorders.Methods PubMed,Scopus and Web of Science were searched to identify eligible studies published before January 1,2020.Eligible studies includ...Objective To examine the effect of multisensory exercise on balance disorders.Methods PubMed,Scopus and Web of Science were searched to identify eligible studies published before January 1,2020.Eligible studies included randomized control trials(RCTs),non-randomized studies,case-control studies,and cohort studies.The methodological quality of the included studies was evaluated using JBI Critical Appraisal Checklists for RCTs and for Quasi-Experimental Studies by two researchers independently.A narrative synthesis of intervention characteristics and health-related outcomes was performed.Results A total of 11 non-randomized studies and 9 RCTs were eligible,including 667 participants.The results supported our assumption that multisensory exercise improved balance in people with balance disorders.All of the 20 studies were believed to be of high or moderate quality.Conclusion Our study confirmed that multisensory exercise was effective in improving balance in people with balance disorders.Multisensory exercises could lower the risk of fall and enhance confidence level to improve the quality of life.Further research is needed to investigate the optimal strategy of multisensory exercises and explore the underlying neural and molecular mechanisms of balance improvement brought by multisensory exercises.展开更多
A fluorescent pyrene derivate, N-allyl-l-pyrenemethylammonium hydrochloride (APA*), was reported to form a stable host-guest complex with cucurbit[8]uril (CB[8]), and this property can be utilized to determinate ...A fluorescent pyrene derivate, N-allyl-l-pyrenemethylammonium hydrochloride (APA*), was reported to form a stable host-guest complex with cucurbit[8]uril (CB[8]), and this property can be utilized to determinate the purity of CB[8] via emission titration. Moreover, the 1:1 complex of APA and CB[8] can further bind methyl viologen (MV^2+), which is the main ingredient of a widely used herbicide, providing a good method to detect MV^2+, especially at low concentrations.展开更多
基金The study was supported by the National Twelfth-Five Year Research Program of China(No.2012BAI12B02)the National Natural Science Foundation of China(No.81873701).
文摘Benign paroxysmal positional vertigo(BPPV)represents the most common form of positional vertigo.It is caused by dislodged otoconia that freely float in the semicircular canals(canalolithiasis)or attach to the cupula(cupulolithiasis).A cupulolithiasis-type(or a heavy cupula-type)of BPPV implicating the lateral semicircular canal(LSCC)exhibits persistent ageotropic direction-changing positional nystagmus(DCPN)in a head-roll test.However,in some cases,unlike any type of BPPV,persistent geotropic DCPN cannot be explained by any mechanisms of BPPV,and don’t fit the current classifications.Recently,the notion of light cupula has been introduced to refer to the persistent geotropic DCPN.In this study,we looked at the clinical features of light cuplula and discussed the possible mechanisms and therapeutic strategies of the condition.The notion of light cupula is a helpful addition to the theory of peripheral positional vertigo and nystagmus.
基金supported by grants from the National Twelfth Five-Year Research Program of China(No.2012BAI12B02)the National Natural Science Foundation of China(No.81873701)the Two-hundred Talent Fund of Medical College of Shanghai Jiao Tong University(No.20191921).
文摘Objective To examine the effect of multisensory exercise on balance disorders.Methods PubMed,Scopus and Web of Science were searched to identify eligible studies published before January 1,2020.Eligible studies included randomized control trials(RCTs),non-randomized studies,case-control studies,and cohort studies.The methodological quality of the included studies was evaluated using JBI Critical Appraisal Checklists for RCTs and for Quasi-Experimental Studies by two researchers independently.A narrative synthesis of intervention characteristics and health-related outcomes was performed.Results A total of 11 non-randomized studies and 9 RCTs were eligible,including 667 participants.The results supported our assumption that multisensory exercise improved balance in people with balance disorders.All of the 20 studies were believed to be of high or moderate quality.Conclusion Our study confirmed that multisensory exercise was effective in improving balance in people with balance disorders.Multisensory exercises could lower the risk of fall and enhance confidence level to improve the quality of life.Further research is needed to investigate the optimal strategy of multisensory exercises and explore the underlying neural and molecular mechanisms of balance improvement brought by multisensory exercises.
基金financial support from the National Basic Research Program of China(973 Program,No.2009CB930103)Natural Science Foundation of Shandong Province(No.ZR2011BM002)
文摘A fluorescent pyrene derivate, N-allyl-l-pyrenemethylammonium hydrochloride (APA*), was reported to form a stable host-guest complex with cucurbit[8]uril (CB[8]), and this property can be utilized to determinate the purity of CB[8] via emission titration. Moreover, the 1:1 complex of APA and CB[8] can further bind methyl viologen (MV^2+), which is the main ingredient of a widely used herbicide, providing a good method to detect MV^2+, especially at low concentrations.