Taurine and Tapetum Structure
The tapetum lucidum is a multi-layer reflecting surface situated in the eyes of a number of vertebrates (Fig. 1). It is located behind the photoreceptors and gives them a second opportunity to absorb light not initially absorbed (see 15 for review). Our interest in the physiological role of taurine and recent discovery that dietary taurine deprivation causes disorganization and degeneration of the tapetum lucidum of the cat (21) lead to the present investigations of the chemistry and structure of the tapetum lucidum. We have further examined the tapetum in normal and taurine-depleted cats and in a naturally occurring tapetal abnormality in the beagle dog.
KeywordsTapetal Cell Ultrastructural Examination Ocular Toxicity Autosomal Recessive Trait Taurine Concentration
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