See Also: Selim III(encyclopedia)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Medicine Lodge Memorial Hospital- Medicine Lodge(health)
Orthomolecular medicine (orthomolecular nutritional medicine, orthomolecular therapy)(health)
vitamin C(encyclopedia)
Vitamin D(health)
vitamin K(encyclopedia)
vitamin(encyclopedia)
Vitamin A(health)
vitamin F(medicine)

vitamin A1 acid (medicine) and Selim III (sh)


vitamin A1 acid (medicine)


vitamin A1 acid -->
retinoic acid
<biochemistry> The aldehyde (retinal) has long been known to be involved in photoreception, but retinoic acid has Other roles.

There are cytoplasmic retinoic acid binding proteins and retinoic acid response elements that regulate gene transcription. Retinoic acid is thought to be a morphogen in chick limb bud development and in early development of the chick that probably accounts for its potent teratogenic action.

Synonym: vitamin A.


Selim III (sh)




born Dec. 24, 1761, Constantinople, Ottoman Empire
died July 29, 1808, Constantinople

Ottoman sultan (r. 1789-1807).

He inherited the throne during a losing war with Austria and Russia (1787-92), with whom he later signed treaties. Napoleon I's invasion of Egypt in 1798 drove him into an alliance with Britain and Russia, but, impressed with Napoleon's successes, he switched sides in 1806. At Home he attempted tax and land reform and established a European-style military corps, but, unable to enforce his reforms in the face of mutinies among the Janissaries and Other units, he rescinded them. He was promptly overthrown and was strangled on the orders of his successor, Mustafa IV.


Selim III, detail of a portrait by H. Berteaux, early 19th century; in the Topkap? Palace ...

Sonia Halliday