Abstract: A fermented milk for improving autonomic nervous function containing at least one lactic acid bacterial species of the genus Lactobacillus and its metabolite. The lactic acid bacterial species of the genus Lactobacillus is selected from the group consisting of Lactobacillus delbrueckii, Lactobacillus delbrueckii subsp. bulgaricus, Lactobacillus gasseri, Lactobacillus rhamnosus and Lactobacillus acidophilus. The lactic acid bacterial strain of the genus Lactobacillus is preferably Lactobacillus delbrueckii subsp. bulgaricus OLL1073R-1(FERM BP-10741).

Abstract: A fermented milk for improving autonomic nervous function containing at least one lactic acid bacterial species of the genus Lactobacillus and its metabolite. The lactic acid bacterial species of the genus Lactobacillus is selected from the group consisting of Lactobacillus delbrueckii, Lactobacillus delbrueckii subsp. bulgaricus, Lactobacillus gasseri, Lactobacillus rhamnosus and Lactobacillus acidophilus. The lactic acid bacterial strain of the genus Lactobacillus is preferably Lactobacillus delbrueckii subsp. bulgaricus OLL1073R-1(FERM BP-10741).

Abstract: A composition for suppressing deterioration of an acquired immune function according to the present invention includes, as an active ingredient, lactic acid bacteria products from lactic acid bacteria of the genus Lactobacillus. This composition for suppressing deterioration of the acquired immune function suppresses deterioration of the acquired immune function due to the use of an anti-influenza drug. The lactic acid bacteria of the genus Lactobacillus is preferably a bulgaricus bacterium. For example, the lactic acid bacteria of the genus Lactobacillus may be Lactobacillus delbrueckii subsp. bulgaricus. In the production method according to the present invention, a milk raw material is supplied to lactic acid bacteria of the genus Lactobacillus in order to produce the composition for suppressing deterioration of the acquired immune function to suppress deterioration of the acquired immune function due to the use of an anti-influenza drug.

Abstract: The present invention addresses the problem of providing an antibody titer-increasing agent, such as an adjuvant, capable of sustaining an effect achieved by, for example, vaccination, which is an antibody titer-increasing agent such as an adjuvant that is safe, convenient and economical and can be easily taken irrespective of age, and a method for manufacturing the same. A method for increasing an antibody titer and a method for enhancing the effect of a vaccine, each method comprising using Lactobacillus delbrueckii subspecies bulgaricus OLL1073R-1 or a culture thereof; and an antibody titer-increasing agent such as an adjuvant that comprises Lactobacillus delbrueckii subspecies bulgaricus OLL1073R-1 or a culture thereof.

Abstract: The present invention addresses the problem of providing an antibody titer-increasing agent, such as an adjuvant, capable of sustaining an effect achieved by, for example, vaccination, which is an antibody titer-increasing agent such as an adjuvant that is safe, convenient and economical and can be easily taken irrespective of age, and a method for manufacturing the same. A method for increasing an antibody titer and a method for enhancing the effect of a vaccine, each method comprising using Lactobacillus delbrueckii subspecies bulgaricus OLL1073R-1 or a culture thereof; and an antibody titer-increasing agent such as an adjuvant that comprises Lactobacillus delbrueckii subspecies bulgaricus OLL1073R-1 or a culture thereof.