{"product_id":"retinoids-by-ce-orfanos","title":"Retinoids by Ce Orfanos | ISBN-13 9783642680250","description":"\u003cp\u003e\u003cb\u003eRetinoids by Ce Orfanos\u003c\/b\u003e\u003c\/p\u003e With the aromatic retinoic acid analog Tigason oral and intravenous pharmacokinetic studies have been performed in 5 normal volunteers. Simultaneous fitting of single i. v. and oral data to a three-compartment model assuming first-order absorption was possible. Using Nonlin parameter estimates of the single-dose data, one is able to predict the decline in plasma levels of parent drug following cessation of a 10 days multiple dosing regimen up to 24 hours. The model is however unable to predict a phase of prolonged elimination observed beyond 24 hours. Moreover in 5 patients, who underwent chronic therapy (8-15 months), substantial plasma levels of both unchanged drug and main metabolite (corre­ sponding carboxylic acid) were observed up to 140 days after cessation of the therapy. An apparent half-life of elimination of 80-100 days can be calculated. The drug appears to be stored at some yet unknown storage site. Investigation of metabolism of Tigason in rats and humans revealed 19 different bio­ transformation products thus far, most of them appearing in the urine in low amounts (20010 of dose). A few of them (mainly the acid Ro 10-1670) after conjugation to glucuronic acid are excreted in the bile in high amounts (60-80% of dose). No drug appeared unchanged in the excreta after i. v. administration to rats. References 1. Bollag W (1971) Effects of vitamin A acid (NSC-122758) on transplantable and chemically-induced tumors. Cancer Chemother Rep 55:53-58 2.\u003ch3\u003eBook details\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;width:100%;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;border:1px solid #ddd;\"\u003eISBN 13\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e9783642680250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;border:1px solid #ddd;\"\u003eISBN 10\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e3642680259\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;border:1px solid #ddd;\"\u003eAuthor\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eCe Orfanos\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;border:1px solid #ddd;\"\u003eCondition\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;border:1px solid #ddd;\"\u003eBinding Type\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003ePaperback\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;border:1px solid #ddd;\"\u003ePublisher\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eSpringer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;border:1px solid #ddd;\"\u003eYear published\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e2011-12-10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;border:1px solid #ddd;\"\u003eNumber of pages\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003e530\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align:left;padding:6px 10px;border:1px solid #ddd;\"\u003eCover note\u003c\/th\u003e\n\u003ctd style=\"padding:6px 10px;border:1px solid #ddd;\"\u003eBook picture is for illustrative purposes only, actual binding, cover or edition may vary.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Springer","offers":[{"title":"Default Title","offer_id":66307566731613,"sku":"9783642680250","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/8911\/0621\/files\/9783642680250.jpg?v=1792772492","url":"https:\/\/highscorecomics.com\/products\/retinoids-by-ce-orfanos","provider":"High Score Comics","version":"1.0","type":"link"}