Methods and compositions are provided for treating weight related conditions and metabolic disorders by altering microbiota in a subject. One aspect provides methods and compositions to alter microbiota in a subject by administering to the subject a composition that includes a substantially purified microbiota from phyla such as Bacteroidetes, Proteobacteria, Firmicutes and Verrucomicrobia or orders such as Bacteroidales, Verrucomicrobiales, Clostridiales and Enterobacteriales or genera such as Alistipes, Clostridium, Escherichia, and Akkermansia. Another aspect includes a pharmaceutical composition for altering microbiota that includes a therapeutically effective amount of substantially purified microbiota and a pharmaceutically acceptable carrier. Yet another aspect includes methods for treating a disorder, such as obesity, in a subject in need of such treatment by changing relative abundance of microbiota in a gastrointestinal tract of the subject without or in addition to a surgical procedure.

Methods and compositions are provided for treating weight related conditions and metabolic disorders by altering microbiota in a subject. One aspect provides methods and compositions to alter microbiota in a subject by administering to the subject a composition that includes a substantially purified microbiota from phyla such as Bacteroidetes, Proteobacteria, Firmicutes and Verrucomicrobia or orders such as Bacteroidales, Verrucomicrobiales, Clostridiales and Enterobacteriales or genera such as Alistipes, Clostridium, Escherichia, and Akkermansia. Another aspect includes a pharmaceutical composition for altering microbiota that includes a therapeutically effective amount of substantially purified microbiota and a pharmaceutically acceptable carrier. Yet another aspect includes methods for treating a disorder, such as obesity, in a subject in need of such treatment by changing relative abundance of microbiota in a gastrointestinal tract of the subject without or in addition to a surgical procedure.

The present disclosure provides compositions and methods for treating Clostridium difficile infection (CDI) including primary and recurrent CDI. In particular, the compositions and methods described herein are capable of achieving a CDI clearance rate of at least 80% through a single oral dose of a pharmaceutical composition comprising a freeze-dried fecal microbiota preparation.

The present disclosure provides compositions and methods for treating Clostridium difficile infection (CDI) including primary and recurrent CDI. In particular, the compositions and methods described herein are capable of achieving a CDI clearance rate of at least 80% through a single oral dose of a pharmaceutical composition comprising a freeze-dried fecal microbiota preparation.

Disclosed herein are methods and compositions that can be used to improve motor deficits and neuroinflammation in subjects in need, for example subjects suffering from neurodegenerative disorders (e.g., Parkinson's disease). Also disclosed are methods and compositions that can be used to diagnose neurodegenerative disorders, such as Parkinson's disease.

Disclosed herein are methods and compositions that can be used to improve motor deficits and neuroinflammation in subjects in need, for example subjects suffering from neurodegenerative disorders (e.g., Parkinson's disease). Also disclosed are methods and compositions that can be used to diagnose neurodegenerative disorders, such as Parkinson's disease.

This document provides methods and materials involved in assessing mammals (e.g., humans) for arthritis. For example, methods and materials for assessing a mammal's gut microbial diversity to identify the mammal as having arthritis (e.g., rheumatoid arthritis) are provided. This document also provides methods and materials involved in treating arthritis.

Provided is an anti-tumor composition, comprising: (A) Akkermansia muciniphila; and (B) an immune checkpoint inhibitor, such as a PD-1 inhibitor, a PD-L1 inhibitor, a CTLA-4 inhibitor, etc. Also provided is use of Akkermansia muciniphila in preparing a drug for treating tumor.

Provided is an anti-tumor composition, comprising: (A) Akkermansia muciniphila; and (B) an immune checkpoint inhibitor, such as a PD-1 inhibitor, a PD-L1 inhibitor, a CTLA-4 inhibitor, etc. Also provided is use of Akkermansia muciniphila in preparing a drug for treating tumor.

The present invention concerns an E. coli strains expressing high level of α-Gal, in particular selected in the group consisting of E. coli Nissle 1917 strain, E. coli O111 strain, E. coli O86:B7 strain, and mixture thereof, as a probiotic and/or feed additive and/or oral vaccine in a non-human animal, in particular fish and poultry, to prevent and/or reduce an infectious disease caused by a pathogen expressing α-Gal on its surface.