Abstract:
Probes for specifically detecting and identifying H. pylori which serves as an inflammatory bacterium in digestive diseases. These probes contain a fragment formed by completely digesting a DNA carried by H. pylori with a restriction enzyme HindIII. The information of the base sequences of these probes are useful as a structural indication of primers to be used in the construction of probes specific to H. pylori by PCR or as standard sequences suitable for the comparison with genomic DNAs contained in clinical specimens.
Abstract:
Probes obtained by extracting DNAs carried by Streptococcus pyogenes, completely digesting the extracted DNAs with a restriction enzyme HindIII, cloning the same into an appropriate vector and then screening probes containing the DNA fragments inherently carried by S. pyogenes, followed by the clarification of the base sequences of these probes.
Abstract:
Phagocytes having taken a foreign microorganism which are prepared by bringing phagocytes into contact with the microorganism and then isolating the phagocytes; a process for producing the same; and a method and a kit with the use of the same. An experimental model whereby the phagocytosis function of phagocytes can be evaluated in vitro .
Abstract:
A method of detecting a nucleic acid which comprises bringing a solid carrier suspected to carry or contain a nucleic acid into contact with a polyamine containing, bound thereto, a label capable of generating a detectable signal or a precursor thereof to thereby form a complex between a nucleic acid, if any, and the polyamine, removing the polyamine which has not formed any complex before or after the conversion of the precursor, if used, into the label, and detecting the label.
Abstract:
Probes obtained by extracting DNAs carried by Bacteroides fragilis, completely digesting the extracted DNAs with a restriction enzyme HindIII, cloning the same into an appropriate vector and then screening probes containing the DNA fragments inherently carried by B. fragilis, followed by the clarification of the base sequences of these probes.
Abstract:
A probe useful for rapidly detecting and identifying bacteria causative of infectious diseases is provided by completely digesting DNAs extracted from principal bacteria causative of infectious diseases with Hind III, cloning the digestion product to a suitable vector, and selecting a probe containing DNA fragments peculiar to each of the bacteria. A standard DNA sequence suitable for comparison with that of a genomic DNA contained in a clinical specimen is provided by clarifying the base sequence of the selected probe.
Abstract:
It is intended to provide a method of detecting a nucleic acid whereby a target nucleic acid can be accurately and quickly detected at an elevated detection sensitivity compared with the existing methods; and a gene detection kit with the use of this method. A sample containing cells is fixed to a support and nucleic acids are amplified on the support as such. Then a nucleic acid thus amplified is detected. Since the nucleic acids are not extracted from the sample in this method, a lowering in the detection sensitivity due to the nucleic acid loss in the step of extracting the nucleic acids can be prevented. Since the amplified nucleic acid is detected, furthermore, detection can be made even though the nucleic acid is contained only in a trace amount in the sample.
Abstract:
A microorganism causative of an infection is quickly and highly sensitively detected and/or identified by obtaining phagocytes from a clinical specimen containing phagocytes originating in a living body, immobilizing the obtained phagocytes, treating the phagocytes so as to enhance the permeability of the phagocyte membrane and expose DNA of the microorganism causative of the infection which is anticipated as being contained in the phagocytes, and then using a detection DNA probe hybridizable with the DNA under stringent conditions.
Abstract:
Probes obtained by extracting DNAs carried by Klebsiella pneumoniae, completely digesting the extracted DNAs with a restriction enzyme HindIII, cloning the same into an appropriate vector and then screening probes containing the DNA fragments inherently carried by K. pneumoniae, followed by the clarification of the base sequences of these probes.