Condition: Embryonic Development · Retinal Anomalies · Neural Development · Sponsor: Sheng Liu
This research studies how nerve cells in the human embryonic retina, visual brain regions, and brain areas responsible for higher cognitive functions grow, develop, and form interconnected functional networks. Eye tissue, visual brain tissue, and other brain tissue linked to advanced cognitive functions will be collected from embryos whose pregnancies were terminated due to medical conditions or illnesses. High-throughput single-cell and single-nucleus sequencing will be utilized to map gene activity patterns and developmental growth pathways of retinal nerve cells. Multiple testing tools will be combined to analyze these brain and retinal cells: Patch-seq (single-cell patch-clamp sequencing), high-density microelectrode arrays (MEA), and two-photon calcium imaging. With these tools, systematic measurements will be performed on the electrical activity, physical shape, synaptic connection patterns, and signal coding functions of neurons in the retina and visual brain regions. Multi-modal tissue maps and a public database will be constructed to store all collected research data. Immunofluorescence staining will also be applied to compare structural differences and nerve fiber connections between visual brain regions and higher cognitive brain areas. The regenerative capacity and neuron formation process of embryonic brain stem cells, as well as the migration paths of developing neurons, will be tracked. Overall, this study aims to fully uncover the neural foundation of visu…
This description comes directly from the study's public registry record.
Sheng Liu, Doctor · 13622284795 · liush87@mail.sysu.edu.cn
Jing Su · 15999937669 · sujing@gzzoc.com
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| Zhongshan Ophthalmic Center, Sun Yat-sen University | Guangzhou, Guangdong, China | Recruiting |
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Source record: clinicaltrials.gov/study/NCT07688538