Abstract
THE ENZYME systems involved in the respiration of the lens have not been established. Whereas many attempts have been made to demonstrate that the same enzymes—flavoprotein and cytochrome-cytochrome oxidase1—which catalyze oxygen uptake in other tissues also function in this capacity in the lens, the only direct evidence, to our knowledge, for the existence of a flavoprotein or a cytochrome-cytochrome oxidase system in the lens is that obtained by Philpot and Pirie.2These authors reported two analytical values for the riboflavin content of the lens. Using the microbiologic method of assay, they found that lenses devoid of capsule, and presumably therefore of epithelium, contained in the two instances 0.05 and 0.12 γ of riboflavin per gram of wet weight. Other investigators3failed to detect riboflavin or flavoprotein in the lens by fluoroscopic methods. Von Euler and Gunther3band Burdon-Cooper and Lewis4were unable to demonstrate
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
