摘要:
A vesicular, immunogenic, non-pyrogenic complex is obtained from isolates of N. gonorrhoeae by cultivating N. gonorrhoeae on a suitable nutrient medium; harvesting and centrifuging the cells; extracting the cell pellet with TRITON X-100 at alkaline pH; suspending the solids remaining after extraction in aqueous medium and precipitating in the cold with ethanol.
摘要:
The present invention relates to a method of transferring at least two saccharide units with a polyglycosyltransferase, a polyglycosyltransferase and a gene encoding such a polyglycosyltransferase
摘要:
A modified bacterial protein-based extract comprising a mixture of acidic bacterial polyanions having a molecular weight of 10,000-1,000,000 and an isoelectric point of 2.5-5.5, wherein the sum of the constituent amino acids represents at least 50 wt % of said extract. Said protein extract is prepared by cultivating bacteria in an aqueous medium, subjecting the bacterial suspension to alkaline extraction and purifying the protein extract. Alkaline extraction is performed in the presence of a dilute aqueous source of OH- ions and at a pH of 11-13, with the pH decrease during said extraction being no greater than 0.4. The resulting protein extract may be used as an active ingredient in a pharmaceutical composition.
摘要:
The present invention concerns a method and an analytical device for the simultaneous detection of Chlamydia trachomatis (CT), Neisseria gonorrheae (NG) and Mycoplasma (M) from a single specimen.
摘要:
Antigens from chlamydial or gonococcal organisms in specimens containing whole blood, mucus or components thereof can be rapidly and sensitively determined using a polyamide microporous membrane which is coated with a surfactant. This determination is accomplished by contacting extracted antigen with the coated polyamide microporous membrane which is substantially free of any particulate matter. The membrane has an average pore size of from 1 to 10 µmeter. Within 10 minutes of that contacting, antigen bound to the coated membrane is contacted with chlamydial or gonococcal antibody, respectively, so as to form an immunological complex on the membrane. The presence of the complex on the membrane in then determined as a measure of the amount of chlamydial or gonococcal antigen present in the specimen.