Browsing by Author "Doss S.H."

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Synthesis of modified steroids as a novel class of non-ulcerogenic, anti-inflammatory and anti-nociceptive agents
(2011) Mohareb R.M.; Elmegeed G.A.; Abdel-Salam O.M.E.; Doss S.H.; William M.G.; Organic Chemistry Department; Faculty of Pharmacy; October University of Modern Sciences and Arts (MSA); Elwahaat Road; October City; Egypt; Chemistry Department; Faculty of Science; Cairo University; Cario; Egypt; Hormones Department; National Research Centre; 12622 Dokki; Cairo; Egypt; Toxicology and Narcotics Department; National Research Centre; 12622 Dokki; Cairo; Egypt
The identification of compounds able to treat both pain and inflammation with limited side effects is one of the prominent goals in biomedical research. This study aimed at the synthesis of new modified steroids with structures justifying non-ulcerogenic, anti-inflammatory and anti-nociceptive activities. The steroid derivatives were synthesized via straightforward and efficient methods and their structures were established based on the analytical and spectral data. The in vivo anti-inflammatory, anti-nociceptive and anti-ulcerogenic activities of some of these compounds were studied. The newly synthesized compounds 8b, 19b, 24 and 31a showed anti-inflammatory, anti-nociceptive and anti-ulcerogenic activity with various intensities. Oedema was significantly reduced by either dose 25 or 50 mg/kg of all tested compounds at 3 and 4 h post-carrageenan. Compound 19b was the most effective in alleviating thermal pain. The analgesic activity of either dose of the compounds 8b, 24, 31a as well as the high dose 19b was significantly higher than that for indomethacin (IND). Gastric mucosal lesions caused in the rats by the administration of 96% EtOH and IND were inhibited by all tested compounds administered at (50 mg/kg) dose in the study. � 2011 Elsevier Inc. All rights reserved.