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Hoiyin Cheung

As seen in: Nature, BioRxiv
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Articles

Neuropeptide Y co-opts neuronal ensembles for memory lability and stability

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By Yan-Jiao Wu, Xue Gu, Yalei Kong, Shuo Yang, Huan Wang, Miao Xu, Qi Wang, Xin Yi, Ze-Jie Lin, Zhi-Han Jiao, Hoiyin Cheung, Xin-Yu Zhao, Xin Bian, Qin Jiang, Ying Li, Michael X Zhu, Lu-Yang Wang, Yulong Li, Ju Huang, Qian Li, Wei-Guang Li, Tian-Le Xu
| Nature Verified
Abstract Engrams are formed by activity-dependent recruitment of subsets of excitatory principal neurons, whereas inhibitory neurons mediate memory lability and stability. It remains elusive whether specific types of interneurons are preferentially engaged in determining the fate of memory.
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An ultra-short-acting benzodiazepine in thalamic nucleus reuniens undermines fear extinction via intermediation of hippocamposeptal circuits

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By Xin Yi, Yan-Jiao Wu, Hoiyin Cheung, Tong-Zhou Yu
| BioRxiv
Abstract Benzodiazepines, commonly used for anxiolytics, hinder conditioned fear extinction, and the underlying circuit mechanisms are unclear. Utilizing remimazolam, an ultra-short-acting benzodiazepine, we reveal its impact on the thalamic nucleus reuniens (RE) and interconnected hippocamposeptal circuits during fear extinction. Systemic or RE-specific administration of remimazolam impedes fear extinction by reducing RE activation through A type GABA receptors.
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