摘要:
On prévoit des oligonucléotides qui possèdent une séquence nucléotidique complémentaire à au moins une portion de la transcription mARN du gène c-abl humain. Ces oligonucléotides ''non codants'' sont hybridables à la transcription mARN c-abl. Ces oligonucléotides sont utiles à l'inhibition de la prolifération des cellules myéloïdes, notamment dans le cas des troubles myéloprolifératifs tels que la leucémie myélogène chronique.
摘要:
Des agents hybrides thrombolytiques sont obtenus sous la forme de complexes covalents ou non covalents de fragments de fibrine et de molécules d'un activateur de plasminogène. Des fragments de dégradation de plasmine naturelle de fibrine ou des fragments de fibrine non naturels sont liés de manière covalente ou non covalente à des activateurs de plasminogène tels que tPA, scu-A, urokinase, streptokinase, et autres. Des fragments de fibrine naturels utiles pouvant être utilisés pour former des complexes avec des activateurs de plasminogène comprennent les fragments E1, E2, E3, D et DD, et le complexe (DD)E. Le composant de fragment de fibrine cible l'agent hybride sur les thrombus vasculaires immobilisant la molécule de plasminogène sur la surface de la fibrine du thrombus. Une fois localisé sur la surface d'un thrombus, le composant de l'activateur de plasminogène de l'agent hybride active uniquement le plasminogène lié à la surface du caillot transporté par le véhicule de fragment de fibrine, sans activation systémique significative de plasminogène.
摘要:
A novel polycyanogen (MW at least 500) is made by electrochemical polymerization of cyanogen in solution. Fiber and pyrolyzed forms of this polymer and methods of making same are also described.
摘要:
A strain of Neisserie gonorrhoeae ATCC 31953 is described which has characteristically poor growth on chocolate agar at a temperature range of about 30°C to about 37°C In a CO 2 stmosphere suitable for growth of N. gonorrhoeae. This strain is resistant to nalidixic acid at the 5-10 mog/ml level and resistant to streptomycin at the 1000 meg/ml level or greater. The strain is suitable for a method for the laboratory diagnosis of gonorrhea, comprising the steps of (1) preparing a test strain of the microorganism Neisseria gonorrhoeae which is competent for transformation, (2) extracting N. gonorrhoeae DNA from a patient's apecimen material or colonies suspected of being N. gonor- rhoeae whether in pure or mixed culture by treatment with a base which lyses N. gonorrhoeae, (3) adusting the pH of the extract of step (2) to a pH that is not toxic to the test strain, (4) applying the pH adjusted extract to the test strain before or after putting it on or into a biological medium suitable for growth of N. gonorrhoese, (5) maintaining the treated test strain at optimum N. gonorrhoeae growth conditions which are Inhibitory for the test strain and (6) observing for detectable growth of the treated test strain. The observance of growth Indicates detection of N. gonorrhoeae DNA. Also described is a test kit for performing the method.
摘要:
The present invention provides homologous recombination vectors to insert transgenic DNA in cells. These vectors shorten the production time and allow for easy generation of genetically modified cells. The invention allows the user to test multiple tags and to generate homozygous modified cell line using the homologous recombination vector. The invention can be used to generate knockout cells, to generate cell lines with knockin genes, to generate cell lines for drug screening against any target, to create transgenic animals, or in gene therapy.