Single-nucleotide polymorphisms and activities of indoleamine 2,3-dioxygenase isoforms, IDO1 and IDO2, in tuberculosis patients.

"Declarations Ethics approval and consent to participateThis study was approved by the Ethics Committee of Beijing Chest Hospital (approval number 2016–05) in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments. Written informed consent was obtained from participants in accordance with the hospital’s guidelines. The animal experiment was approved by the Animal Experimental Ethics Committee of Beijing Chest Hospital. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study was supported by the National Natural Science Foundation (81871691), the Beijing Municipal Natural Science Foundation (21JG0034), and the Beijing Key Clinical Specialty Project."