Abstract: The invention relates to methods to manipulate stem cells in vivo and in vitro to treat, e.g., a condition where cell or tissue repair is needed.

Abstract: As described herein, the present invention provides compounds useful for treating or lessening the severity of a neurodegenerative disorder. The present invention also provides methods of treating or lessening the severity of such disorders wherein said method comprises administering to a patient a compound of the present invention, or composition thereof. Said method is useful for treating or lessening the severity of, for example, Alzheimer's disease.

Abstract: The present invention provides a novel process for the conversion of &agr;,&bgr;-unsaturated ketones. This invention is an improvement over existing processes in that it operates at neutral reaction conditions that prevent the formation of side reactions and that it is a single step, which proceeds with complete selectivity and gives a yield that is approximately 30% higher than the currently used processes. An example of this process is the conversion of 16-dehydroprogesterone into 17 &agr;-hydroxyprogesterone.

Abstract: Methods and compositions for preventing and treating neovascularization with steroids is disclosed.

Abstract: A process for the preparation of a compound of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of hydrogen, alkyl of 1 to 4 carbon atoms optionally substituted by halogen or a nitrogen or oxygen function and alkenyl and alkynyl of 2 to 4 carbon atoms, R.sub.2 is alkyl of 1 to 4 carbon atoms and the A, B, C and D rings are optionally substituted by at least one member of the group consisting of optionally protected --OH or .dbd.0, halogen, alkyl and alkoxy of 1 to 4 carbon atoms and alkenyl and alkynyl of 2 to 4 carbon atoms comprising reacting a compound of the formula ##STR2## wherein R.sub.1 and R.sub.2 and the A, B, C and D rings are defined as above with an oxidizing agent in the presence of water and an at least partially water-miscible solvent to obtain a compound of the formula ##STR3## wherein R.sub.1 and R.sub.

Abstract: The present invention relates to the compound cyproterone acetate thioacetate (CATA) and compositions comprising CATA. The present invention further relates to methods of treating acne and/or sebaceous gland activity comprising topical application of CATA. The present invention additionally relates to methods of regulating hair growth comprising application of compositions comprising CATA.

Abstract: Novel 3-keto-19-nor-.DELTA..sup.4,9 -steroids of the formula ##STR1## and their non-toxic, pharmaceutically acceptable acid addition salts possessing a remarkable antiglucocorticoidal activity.

Abstract: Disclosed are .DELTA..sup.9(11) -steroids of the formula ##STR1## which have been found to be angiostatic and therefore are useful in the control of embryogenesis, inflammatory conditions, tumor growth as well as other abnormalities.