Abstract: A method of regulating blood pressure in a subject is provided. The method comprises administering a preparation comprising ammonia oxidizing microorganisms to the subject, thereby regulating blood pressure in the subject. Related preparations, kits, and devices are also provided.

Abstract: Ammonia oxidizing microorganism preparations for delivery to the intranasal system, kits including ammonia oxidizing preparations for delivery to the intranasal system, and devices for administering ammonia oxidizing preparations to the intranasal system are provided. Methods of introducing ammonia oxidizing microorganisms to the intranasal system are provided. Methods of treating disorders, including neurological disorders, nasal or sinus disorders, and inflammatory disorders, with ammonia oxidizing microorganism preparations are provided.

Abstract: A method of treating diaper rash in a subject is provided. A method of treating athlete's foot in a subject is provided. A method of treating contact dermatitis in a subject is provided. A method of treating perspiration and body odor in a subject is provided. The method comprises administering an effective amount of a preparation comprising ammonia oxidizing microorganisms to the subject, thereby treating the diaper rash, athlete's foot, contact dermatitis, or perspiration and body odor. Related preparations, kits, and devices are also provided.

Abstract: Ammonia oxidizing microorganism preparations for delivery to the intranasal system, kits including ammonia oxidizing preparations for delivery to the intranasal system, and devices for administering ammonia oxidizing preparations to the intranasal system are provided. Methods of introducing ammonia oxidizing microorganisms to the intranasal system are provided. Methods of treating disorders, including neurological disorders, nasal or sinus disorders, and inflammatory disorders, with ammonia oxidizing microorganism preparations are provided.

Abstract: Ammonia oxidizing microorganism preparations for delivery to the gastrointestinal system, kits including ammonia oxidizing preparations for delivery to the gastrointestinal system, and devices for administering ammonia oxidizing preparations to the gastrointestinal system are provided. Methods of introducing ammonia oxidizing microorganisms to the gastrointestinal system are provided. Methods of treating disorders, including gastrointestinal disorders and inflammatory disorders, with ammonia oxidizing microorganism preparations are provided.

Abstract: A method for treating a skin disorder, e.g., acne, e.g. acne vulgaris, in a subject is provided. The method comprises administering, e.g., applying, e.g., topically administering, ammonia oxidizing bacteria, e.g., a preparation comprising ammonia oxidizing bacteria, to a surface of the subject. Preparations comprising ammonia oxidizing bacteria for treating such skin disorder, e.g., acne, e.g. acne vulgaris in a subject are also provided.

Abstract: This disclosure provides, inter alia, an optimized strain of Nitrosomonas eutropha (N. eutropha) designated D23, D23-100, or AOB D23-100. N. eutropha bacteria disclosed in this application have desirable properties, e.g., optimized properties, such as the ability to suppress growth of pathogenic bacteria, and an enhanced ability to produce nitric oxide and nitric oxide precursors. The N. eutropha herein may be used, for instance, to treat diseases associated with low nitrite levels, skin diseases, and diseases caused by pathogenic bacteria.

Abstract: A method of treating diaper rash in a subject is provided. A method of treating athlete's foot in a subject is provided. A method of treating contact dermatitis in a subject is provided. A method of treating perspiration and body odor in a subject is provided. The method comprises administering an effective amount of a preparation comprising ammonia oxidizing microorganisms to the subject, thereby treating the diaper rash, athlete's foot, contact dermatitis, or perspiration and body odor. Related preparations, kits, and devices are also provided.

Abstract: Methods of treating neurodegenerative disorders, neurocognitive disorders, mental disorders, neuropsychological disorders, and symptoms thereof by administering ammonia oxidizing microorganisms are disclosed. Preparations for treating disorders, including neurodegenerative disorders, neurocognitive disorders, mental disorders, neuropsychological disorders, and symptoms thereof including ammonia oxidizing microorganisms are disclosed. Kits including ammonia oxidizing microorganism preparations and devices for administering ammonia oxidizing preparations are provided.

Abstract: A method of regulating blood pressure in a subject is provided. The method comprises administering a preparation comprising ammonia oxidizing microorganisms to the subject, thereby regulating blood pressure in the subject. Related preparations, kits, and devices are also provided.

Abstract: A method for degrading a biofilm on a surface is provided. A method of preventing formation of a biofilm on a surface is provided. The method includes administering, e.g., applying, ammonia oxidizing microorganisms, e.g., a preparation comprising ammonia oxidizing bacteria, to the surface. Preparations comprising ammonia oxidizing microorganisms for biofilm treatment are also provided.

Abstract: Preparations comprising microorganisms for delivery as a plurality of particles, kits including microorganism preparations for delivery as a plurality of particles, and devices for administering microorganism preparations as a plurality of particles are provided. Methods of administering microorganisms via nebulization or inhalation are provided. Methods of introducing microorganisms to the respiratory system are provided. Methods of treating disorders, including respiratory disorders and inflammatory disorders, with preparations comprising microorganisms are provided.

Abstract: Ammonia oxidizing microorganism preparations for delivery to the intranasal system, kits including ammonia oxidizing preparations for delivery to the intranasal system, and devices for administering ammonia oxidizing preparations to the intranasal system are provided. Methods of introducing ammonia oxidizing microorganisms to the intranasal system are provided. Methods of treating disorders, including neurological disorders, nasal or sinus disorders, and inflammatory disorders, with ammonia oxidizing microorganism preparations are provided.

Abstract: This disclosure provides, inter alia, systems and methods for storage and delivery of ammonia oxidizing bacteria, and preparations comprising ammonia oxidizing bacteria. The ammonia oxidizing bacteria may be provided in a container or a kit, with one or more other components that may enhance delivery. The systems and methods herein may be used, for instance, to treat diseases associated with low nitrite levels, skin diseases, and diseases caused by pathogenic bacteria.

Abstract: Ammonia oxidizing microorganism preparations for delivery to the gastrointestinal system, kits including ammonia oxidizing preparations for delivery to the gastrointestinal system, and devices for administering ammonia oxidizing preparations to the gastrointestinal system are provided. Methods of introducing ammonia oxidizing microorganisms to the gastrointestinal system are provided. Methods of treating disorders, including gastrointestinal disorders and inflammatory disorders, with ammonia oxidizing microorganism preparations are provided.

Abstract: A method for treating a skin disorder, e.g., acne, e.g. acne vulgaris, in a subject is provided. The method comprises administering, e.g., applying, e.g., topically administering, ammonia oxidizing bacteria, e.g., a preparation comprising ammonia oxidizing bacteria, to a surface of the subject. Preparations comprising ammonia oxidizing bacteria for treating such skin disorder, e.g., acne, e.g. acne vulgaris in a subject are also provided.

Abstract: The systems and methods of the disclosure provide, inter alia, cosmetic products, e.g., finished cosmetic products that may be considered to be “biome-friendly” or “biome-compatible.” The systems and methods of the disclosure may provide for use of cosmetic products, e.g., finished cosmetic products, that may be used in combination with bacteria, e.g., non-pathogenic bacteria, e.g., ammonia oxidizing bacteria, which may be used in the form of a preparation or composition to be applied to a subject.

Abstract: A method for treating a skin disorder, e.g., acne, e.g. acne vulgaris, in a subject is provided. The method comprises administering, e.g., applying, e.g., topically administering, ammonia oxidizing bacteria, e.g., a preparation comprising ammonia oxidizing bacteria, to a surface of the subject. Preparations comprising ammonia oxidizing bacteria for treating such skin disorder, e.g., acne, e.g. acne vulgaris in a subject are also provided.

Abstract: A system and method is provided for detection at least one of nitrite (NO2), nitric oxide (NO), nitrogen dioxide (NO2), and other nitrogen oxides (NOx) on a substrate, such as skin. According to one aspect, a diagnostic device for measuring a concentration of at least one of nitrite (NO2), nitrogen dioxide (NO2), nitric oxide (NO), and other nitrogen oxides (NOx) on a substrate comprises a patch comprising at least one chemical compound capable of reacting with the at least one of nitrite, nitrogen dioxide, nitric oxide, and other nitrogen oxides to provide an indicator.

Abstract: A method for treating a skin disorder, e.g., acne, e.g. acne vulgaris, in a subject is provided. The method comprises administering, e.g., applying, e.g., topically administering, ammonia oxidizing bacteria, e.g., a preparation comprising ammonia oxidizing bacteria, to a surface of the subject. Preparations comprising ammonia oxidizing bacteria for treating such skin disorder, e.g., acne, e.g. acne vulgaris in a subject are also provided.