摘要:
A method is described for stereoselectively reducing an unsaturated alkyl ketone substituant attached to a fused ring base such as a steroid ring base or a Vitamin D3 analog ring base. In this method, the unsaturated alkyl ketone reacts with a chiral oxazaborolidine reagent to stereoselectively reduce the unsaturated alkyl ketone to an unsaturated alkyl alcohol.
摘要:
A new gene in the calcium-activated chloride channel family has been discovered that is induced by IL-9, thereby providing a therapeutic target in IL-9 mediated development of atopic allergy, asthma-related disorders and cystic fibrosis. A method for the identification and use of small molecule inhibitors of this gene and its products to treat these disorders has also been discovered. The invention also includes a method for diagnosing susceptibility to, and assessing treatment of atopic allergy, asthma-related disorders by measuring the level of gene expression in biologic samples using antibody specific for this protein.
摘要:
Compounds having a broad range of antimicrobial activity generally have a structure including a steroid nucleus with a cationic, preferably polyamine, side chain (X) and an anionic side chain (Y). The invention is also directed to compounds of formula (III) preferably where the steroid ring nucleus is saturated; the steroid ring substituent Z5 is alpha -H; one Z7 is beta -H and the other is alpha -H or alpha -OH; both substituents Z12 are hydrogen; X' is a polyamine side chain of the formula -NH-(CH2)p-NH-(CH2)q-N(R )(R ) where p and q are each independently 3 or 4, and R and R are each independently hydrogen or methyl; R' is methyl; and Y' is (C1-C10)-alkyl substituted with a group such as -CO2H or -SO3H.
摘要:
Nouveaux peptides amphiphiles biologiquement actifs et/ou leurs analogues ou dérivés, utilisés comme agents pharmaceutiques. De tels peptides ont une activité antibiotique et/ou anti-virale et/ou anti-tumorale et/ou anti-parasite et/ou spermicide.
摘要:
Composition comprenant au moins un peptide ou une protéine amphiphile biologiquement actif, ledit peptide ou ladite protéine étant un peptide ou une protéine formant des canaux d'ions et un antibiotique inhibant la gyrase d'ADN . On peut administrer le peptide amphiphile biologiquement actif et l'antibiotique inhibant la gyrase d'ADN dans des doses efficaces pour inhiber la croissance d'une cellule cible telle qu'une bactérie.
摘要:
Compounds having a broad range of antimicrobial activity generally have a structure including a steroid nucleus with a cationic, preferably polyamine, side chain (X) and an anionic side chain (Y). The invention is also directed to compounds of formula (III), preferably where the steroid ring nucleus is saturated; the steroid ring substituent Z5 is alpha -H; one Z7 is beta -H and the other is alpha -H or alpha -OH; both substituents Z12 are hydrogen; X' is a polyamine side chain of the formula -NH-(CH2)p-NH-(CH2)q-N(R )(R ) where p and q are each independently 3 or 4, and R and R are each independently hydrogen or methyl; R' is methyl; and Y' is (C1-C10)-alkyl substituted with a group such as -CO2H or -SO3H. Such compounds, as well as squalamine itself, have antiangiogenic activity and Na /K -ATPase-inhibiting activity.
摘要:
The subject invention relates to a method for the stimulation of defensin production in eukaryotic cells such as, for example, mammalian cells. Furthermore, the invention includes said method for the prevention and treatment of infections and other various disease states and in the stimulation of the immune system.
摘要:
A pharmaceutical composition includes, as an active ingredient, a compound according to formula 1436, or a pharmaceutically acceptable salt thereof, and a pharmaceutically acceptable carrier or excipient. Various pharmaceutical products may be produced including this pharmaceutical composition. Such pharmaceutical products may be used for the treatment of cancers, such as leukemia; inflammation; arthritis; and viruses, such as HSV. Methods for using the pharmaceutical compositions also are described. In these methods, various diseases are treated or other body functions are activated or inhibited by administering an effective amount of the pharmaceutical composition. For example, inflammation, arthritis, herpes simplex virus, melanoma, and leukemia may be treated by administering an effective amount of the pharmaceutical compositions. Viral replication, weight gain, and growth factor production can be inhibited by administering an effective amount of these pharmaceutical compositions. Appetite can be suppressed by administering an effective amount of the pharmaceutical compositions, and a diuretic effect can be produced.
摘要:
A new family of linear antimicrobial peptide from hagfish intestine is described. This invention relates to proteins with antimicrobial properties isolated from hagfish intestine and their corresponding chemical sequences. The antibiotics obtained include, but are not limited to, peptides having a sequence selected from the group consisting of (a); (b); and (c).