Abstract: Provided herein are amino acid compositions useful for increasing the translocation of the cystic fibrosis transmembrane conductance (CFTR) protein from the cytoplasm to the plasma membrane, particularly in epithelial cells. Methods for increasing the concentration of CFTR in the plasma membrane, increasing chloride ion transport, and increasing water transport are also provided. These compositions and methods are useful in treating cystic fibrosis in subjects bearing one or more mutations in the CFTR protein. Use of these compositions for the treatment of cystic fibrosis and in the preparation of a medicament for the treatment of cystic fibrosis are also encompassed herein.

Abstract: A system including a tissue bath; a portion of intestine positioned within the tissue bath, the portion of intestine having a first end and a second end; a pump coupled to the first end of the portion of the intestine and configured to pump a fluid through the portion of intestine; a light source positioned to illuminate the portion of intestine, a camera positioned to capture a stream of images showing movement of the portion of intestine; and a computing system coupled to the camera, the computing system including: a processor, and a memory storing instructions causing the processor to: receive the stream of images, identify a location along the portion of intestine in each image of the stream of images in real time, and measure an edge width at the location along the portion of intestine in each image of the stream of images in real time.

Abstract: The present disclosure provides compositions and methods for promoting stem cell and/or progenitor cell proliferation and/or differentiation. The provided compositions may be useful in treating a disease or condition that is related to mucosal barrier function, e.g., wound healing, treating skin conditions (e.g., atopic dermatitis, psoriasis, bed sores, or condition related to the aging of skin), treating a lung disorders (e.g., asthma), a condition related to improving mucosal barrier function, and/or treating injury to GI mucosa in a subject in need thereof. The present disclosure also provides methods for promoting the proliferation and/or differentiation of stem cells and/or the progenitor cells in a subject in need of such treatment by administering a composition. The ability to stimulate the proliferation and/or differentiation of stem cells and/or the progenitor cells in vivo, ex vivo and/or in vitro provides tremendous benefit.

Abstract: Amino acid formulations useful for treating diarrhea in a subject in need thereof are described herein. Such amino acid formulations and methods comprising administering same to a subject are useful for treating diarrhea, particularly diarrhea caused by or associated with bacterial infections wherein secretagogue-stimulated anion secretion from the intestinal crypt contributes to at least one symptom of diarrhea in the subject. Use of these amino acid formulations for the treatment of diarrhea in general or diarrhea associated with secretagogue-stimulated anion secretion from the intestinal crypt are encompassed herein, as are their use in the preparation of a medicament for the treatment of diarrhea in general or diarrhea associated with secretagogue-stimulated anion secretion from the intestinal crypt.

Abstract: Formulations comprising combinations of free amino acids useful for treating ARDS, asthma, or allergic rhinitis are described herein. Use of such amino acid formulations for treating ARDS, asthma, or allergic rhinitis in a subject in need thereof; in methods for treating ARDS, asthma, or allergic rhinitis in a subject in need thereof; and/or in the preparation of a medicament for the treatment of ARDS, asthma, or allergic rhinitis are encompassed herein.

Abstract: Formulations comprising particular free amino acids useful for promoting hydration and/or intestinal barrier function in a subject in need thereof are described herein. Such formulations and methods using same are useful for promoting hydration and/or intestinal barrier function in a subject in need thereof. Such subjects may be healthy, but in need of a formulation that promotes rapid hydration (e.g., within 15-90 minutes post-administration) or promotes intestinal barrier function; or such subjects may be afflicted by a disorder or disease associated with dehydration or impaired intestinal barrier function, respectively.

Abstract: The present disclosure provides compositions and methods for promoting stem cell and/or progenitor cell proliferation and/or differentiation. The provided compositions may be useful in treating a disease or condition that is related to mucosal barrier function, e.g., wound healing, treating skin conditions (e.g., atopic dermatitis, psoriasis, bed sores, or condition related to the aging of skin), treating a lung disorders (e.g., asthma), a condition related to improving mucosal barrier function, and/or treating injury to GI mucosa in a subject in need thereof. The present disclosure also provides methods for promoting the proliferation and/or differentiation of stem cells and/or the progenitor cells in a subject in need of such treatment by administering a composition. The ability to stimulate the proliferation and/or differentiation of stem cells and/or the progenitor cells in vivo, ex vivo and/or in vitro provides tremendous benefit.

Abstract: Provided herein are amino acid compositions useful for increasing the translocation of the cystic fibrosis transmembrane conductance (CFTR) protein from the cytoplasm to the plasma membrane, particularly in epithelial cells. Methods for increasing the concentration of CFTR in the plasma membrane, increasing chloride ion transport, and increasing water transport are also provided. These compositions and methods are useful in treating cystic fibrosis in subjects bearing one or more mutations in the CFTR protein. Use of these compositions for the treatment of cystic fibrosis and in the preparation of a medicament for the treatment of cystic fibrosis are also encompassed herein.

Abstract: The present disclosure provides compositions and methods for promoting stem cell and/or progenitor cell proliferation and/or differentiation. The provided compositions may be useful in treating a disease or condition that is related to mucosal barrier function, e.g., wound healing, treating skin conditions (e.g., atopic dermatitis, psoriasis, bed sores, or condition related to the aging of skin), treating a lung disorders (e.g., asthma), a condition related to improving mucosal barrier function, and/or treating injury to GI mucosa in a subject in need thereof. The present disclosure also provides methods for promoting the proliferation and/or differentiation of stem cells and/or the progenitor cells in a subject in need of such treatment by administering a composition. The ability to stimulate the proliferation and/or differentiation of stem cells and/or the progenitor cells in vivo, ex vivo and/or in vitro provides tremendous benefit.