See Also: Aleman, Mateo(encyclopedia)
San Mateo Co. General Hospital(health)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
SAN MATEO CITY EMPLOYEES Credit Union(finance)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
medicine man(encyclopedia)
medicine(dictionary)
medicine(2)(dictionary)
medicine(1)(dictionary)

retinaldehyde (medicine) and Aleman, Mateo (sh)


retinaldehyde (medicine)


retinaldehyde
<chemical> A carotenoid constituent of visual pigments. It is the oxidised form of retinol which functions as the active component of the visual cycle.

It is bound to the protein opsin forming the complex rhodopsin. When stimulated by visible light, the retinal component of the rhodopsin complex undergoes isomerization at the 11-position of the double bond to the cis-form; this is reversed in "dark" reactions to return to the native trans-configuration.

Chemical name: Retinal


Aleman, Mateo (sh)




(baptized Sept. 28, 1547, Sevilla, Spain
died งใ 1614, Mexico) Spanish novelist.

Descended from Jews who had been forcibly converted to Roman Catholicism, he expressed many aspects of the experiences and feelings of the New Christians in 16th-century Spain. His most important literary work is Guzman de Alfarache (1599, 1604), one of the earliest picaresque novels, which brought him fame throughout Europe but little profit.