 Müller glia have also been shown to be important in the induction of the enzyme glutamine synthetase in chicken embryos, which is an important actor in the regulation of glutamine and ammonia concentrations in the central nervous system.Müller glia have been further identified as fundamental to the transmission of light through the vertebrate retina due to their unique funnel shape, orientation within the retina and more favorable physical properties.Müller glia are currently being studied for their role in neural regeneration, a phenomenon which is not known to occur in humans.