Abstract: A food or drink product with a disinfection property of Helicobacter pylori and/or a protection property against infection with H. pylori, comprising as the effective ingredient Lactobacillus gasseri OLL 2716 (FERM BP-6999) with a high disinfection potency of H. pylori. The food or drink product prepared by using the lactic acid bacterium, such as acid milk and the like, is suitable for long-term ingestion as a food or drink product with a disinfection property of H. pylori and/or a protection property against infection with H. pylori.

Abstract: The present invention provides a probiotics product comprising, as an effective component, lactic acid bacteria belonging to Lactobacillus salivarius possessing high adhesiveness to mucous membrane, a high proliferation ability and a high resistance to acids, a composition for preventing and/or treating digestive tract's diseases comprising the probiotics product as an effective component and a novel Lactobacillus salivarius strain possessing high adhesiveness to mucous membrane, a high proliferation ability and a high resistance to acids. The lactic acid bacteria and the probiotics product and the composition for preventing and/or treating digestive tract's diseases, which contain the lactic acid bacteria as an effective component, according to the present invention can sufficiently show their probiotics functions without being easily discharged from the digestive tract and urinogenital organs.

Abstract: The object of the present invention is to provide a diagnostic method by which Helicobacter pylori infection can be diagnosed at low cost without causing pain on subjects and without requiring particular equipment and which is free of cross reactivity and excellent in specificity without variation among lots as a result of the use of a single antibody facilitating the quality control and which shows good sensitivity even when a single monoclonal antibody is used. The present invention provides a monoclonal antibody which recognizes Helicobacter pylori catalase as an antigen.

Abstract: A method for diagnosing Crohn's disease by detecting the presence of immunoglobulins, reactive with an amylase, in a specimen by an immunologic or enzymologic method using the amylase, and a test kit for this method.

Abstract: A food or drink product with a disinfection property of Helicobacter pylori and/or a protection property against infection with H. pylori, comprising as the effective ingredient Lactobacillus gasseri OLL 2716 (FERM BP-6999) with a high disinfection potency of H. pylori.

Abstract: The present invention provides a probiotics product comprising, as an effective component, lactic acid bacteria belonging to Lactobacillus salivarius possessing high adhesiveness to mucous membrane, a high proliferation ability and a high resistance to acids, a composition for preventing and/or treating digestive tract's diseases comprising the probiotics product as an effective component and a novel Lactobacillus salivarius strain possessing high adhesiveness to mucous membrane, a high proliferation ability and a high resistance to acids. The lactic acid bacteria and the probiotics product and the composition for preventing and/or treating digestive tract's diseases, which contain the lactic acid bacteria as an effective component, according to the present invention can sufficiently show their probiotics functions without being easily discharged from the digestive tract and urinogenital organs.

Abstract: A food or drink product with a disinfection property of Helicobacter pylori and/or a protection property against infection with H. pylori, comprising as the effective ingredient Lactobacillus gasseri OLL 2716 (FERM BP-6999) with a high disinfection potency of H. pylori. The food or drink product prepared by using the lactic acid bacterium, such as acid milk and the like, is suitable for long-term ingestion as a food or drink product with a disinfection property of H. pylori and/or a protection property against infection with H. pylori.

Abstract: Antibiotics WAP-8294A, A.sub.1, A.sub.2, A.sub.4, AX, AX-8, AX-9 and AX-13 or pharmeceutically acceptable salts thereof produced by a strain belonging to the genus Lysobacter; a method for producing the foregoing antibiotic WAP-8294A comprising the steps of cultivating, in the culture medium, a microorganism belonging to the genus Lysobacter and having an ability of producing the antibiotic WAP-8294A to produce the antibiotic and accumulate it in the culture medium; then recovering the antibiotic; as well as an antibacterial composition comprising the antibiotic or pharmaceutically acceptable salts thereof are herein disclosed. The novel antibiotic WAP-8294A has an excellent therapeutic effect on infectious diseases developed by infection with Gram-positive bacteria, in particular, MRSA and, therefore, the antibiotic is effective for treating diseases including MRSA infectious diseases developed through infection with Gram-positive bacteria as infectious bacteria.

Abstract: A novel gene coding for thermostable .beta.-galactosidase, novel recombinant DNA in which a DNA fragment containing the above gene is inserted, novel Bacillus subtilis in which the above recombinant DNA is introduced, and novel thermostable .beta.-galactosidase obtained by cultivating the above Bacillus subtilis.