The role of zinc as a novel synaptic messenger in the brain

锌被认为是一种丰富的营养必需元素，存在于各种组织中，包括肝脏，肌肉和大脑。在大脑中，锌以高浓度存在，并选择性地积累在突触前囊泡的突触能突触。它的突触活性依赖性释放表明在突触可塑性和各种脑功能如学习和记忆中的重要作用。然而，了解动态锌的作用，从突触前囊泡一直阻碍了无法可视化的过程中，在个别突触。

Zinc is known as an abundant nutritionally essential element and present in a variety of tissues, including liver, muscle and brain. In the brain, zinc is present at high concentrations and selectively accumulates in pre-synaptic vesicles of glutamatergic synapses. Its synaptic activity-dependent release suggests an important role in synaptic plasticity and various brain functions such as learning and memory. However, understanding the role of dynamic zinc from pre-synaptic vesicles has been hampered by the inability to visualize the process in individual synapses.