Is the primary visual pathway in humans regulated according to long-term light exposure through the action of a nonclassical photopigment?
A photopigment with a spectral sensitivity profile quite different from those of the classical rod and cone opsins but matching the standard profile of an opsin:vitamin A-based pigment drives adaptations of the human primary cone visual pathway according to time of day.
We conclude from our experience with a multivessel coronary disease population, that a decrease in perioperative myocardial infarction and renal damage can be achieved by using the beating-heart technique.