Background: Tuberculosis (TB) manifests itself primarily in the lungs as pulmonary disease (PTB) and sometimes disseminates to other organs to cause extra-pulmonary TB, such as lymph node TB (LNTB). This study aimed to investigate the role of host genetic polymorphism in immunity related genes to find a genetic basis for such differences.
Methods: Sixty-three, Single nucleotide polymorphisms (SNPs) in twenty-three, TB-immunity related genes including eleven innate immunity (, , , , , , , , , ) and twelve cytokine (TNFA, , , , , , , , , , ) genes were investigated to find genetic associations in both PTB and LNTB as compared to healthy community controls. The serum cytokine levels were correlated for association with the genotypes.
Results: PTB and LNTB showed differential genetic associations. The genetic variants in the cytokine genes (, , , and and , associated with PTB susceptibility and cytokine levels but not LNTB ( < 0.05). Similarly, genetic variants in , , and showed susceptibility to LNTB and not PTB. Pathway analysis showed abundance of cytokine related variants for PTB and apoptosis related variants for LNTB.
Conclusions: PTB and LNTB outcomes of TB infection have a genetic component and should be considered for any future functional studies or studies on susceptibility to pulmonary and extra-pulmonary TB.
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http://dx.doi.org/10.3390/genes14010207 | DOI Listing |
Front Public Health
July 2024
National Key Laboratory of Intelligent Tracking and Forecasting for Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
Objectives: To investigate the clinical epidemiological and drug resistance (DR) characteristics of lymph node tuberculosis (LNTB) in Hunan Province which locates in South-central China, and to provide scientific clues for effective prevention and treatment of LNTB.
Methods: We retrospectively collected LNTB patients with culture positive at Hunan Chest Hospital, the biggest TB reference hospital in South-central China, from January 2013 to December 2021. The multiple demographic, clinical and drug susceptibility data of patients were collected from the hospital's electronic patient records.
Access Microbiol
November 2023
Department of Medicine, All India Institute of Medical Sciences, New Delhi, India.
Background: The rapid and accurate diagnosis of tubercular lymphadenitis remains a challenging task today. The World Health Organization (WHO) endorsed the LoopAMP MTBC kit (TB-LAMP) as a replacement for sputum smear microscopy in the diagnosis of pulmonary tuberculosis (PTB). However, no prospective diagnostic accuracy study of TB-LAMP for tubercular lymphadenitis in adults has been performed yet.
View Article and Find Full Text PDFNoncoding RNA Res
December 2023
Hasanuddin University Medical Research Center Laboratory, Faculty of Medicine, Universitas Hasanuddin, Makassar, 90245, South Sulawesi, Indonesia.
Background: Studies on miRNA highlight its significance as an immunomarker for several diseases, including tuberculosis. This study aimed to determine the difference between miR-425-5p and miR-4523 expressions in patients with active pulmonary TB (PTB), latent TB infection (LTBI), and lymph node TB (LNTB), whose diagnosis remains challenging.
Methods: This case-control study was performed on blood samples obtained from 23 patients with PTB, 21 with LTBI, 21 with LNTB, and 25 healthy controls (HC).
Genes (Basel)
January 2023
Department of Microbiology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi 110007, India.
J Xray Sci Technol
October 2022
Department of Radiology, Jiangxi Provincial People's Hospital, the First Affiliated Hospital of Nanchang Medical College, Nanchang, Jiangxi, China.
Objective: To investigate 18F-FDG PET/CT findings of tuberculous lymphadenitis and analyze the causes of misdiagnosis.
Method: Between 2013 and 2021, a retrospective review was conducted on 22 patients at Jiangxi Provincial People's Hospital Affiliated with Nanchang University who had lymph node tuberculosis confirmed by histology or clinical investigation. Subjective judgment and quantitative analysis were adopted.
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