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Castle AC, Moosa Y, Claassen H, Shenoi S, Magodoro I, Manne-Goehler J, Hanekom W, Bassett IV, Wong EB, Siedner MJ. Prior tuberculosis, radiographic lung abnormalities and prevalent diabetes in rural South Africa. BMC Infect Dis 2024; 24:690. [PMID: 38992607 PMCID: PMC11238449 DOI: 10.1186/s12879-024-09583-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Accepted: 07/02/2024] [Indexed: 07/13/2024] Open
Abstract
BACKGROUND Growing evidence suggests that chronic inflammation caused by tuberculosis (TB) may increase the incidence of diabetes. However, the relationship between post-TB pulmonary abnormalities and diabetes has not been well characterized. METHODS We analyzed data from a cross-sectional study in KwaZulu-Natal, South Africa, of people 15 years and older who underwent chest X-ray and diabetes screening with hemoglobin A1c testing. The analytic sample was restricted to persons with prior TB, defined by either (1) a self-reported history of TB treatment, (2) radiologist-confirmed prior TB on chest radiography, and (3) a negative sputum culture and GeneXpert. Chest X-rays of all participants were evaluated by the study radiologist to determine the presence of TB lung abnormalities. To assess the relationships between our outcome of interest, prevalent diabetes (HBA1c ≥6.5%), and our exposure of interest, chest X-ray abnormalities, we fitted logistic regression models adjusted for potential clinical and demographic confounders. In secondary analyses, we used the computer-aided detection system CAD4TB, which scores X-rays from 10 to 100 for detection of TB disease, as our exposure interest, and repeated analyses with a comparator group that had no history of TB disease. RESULTS In the analytic cohort of people with prior TB (n = 3,276), approximately two-thirds (64.9%) were women, and the average age was 50.8 years (SD 17.4). The prevalence of diabetes was 10.9%, and 53.0% of people were living with HIV. In univariate analyses, there was no association between diabetes prevalence and radiologist chest X-ray abnormalities (OR 1.23, 95%CI 0.95-1.58). In multivariate analyses, the presence of pulmonary abnormalities was associated with an 29% reduction in the odds of prevalent diabetes (aOR 0.71, 95%CI 0.53-0.97, p = 0.030). A similar inverse relationship was observed for diabetes with each 10-unit increase in the CAD4TB chest X-ray scores among people with prior TB (aOR 0.92, 95%CI 0.87-0.97; p = 0.002), but this relationship was less pronounced in the no TB comparator group (aOR 0.96, 95%CI 0.94-0.99). CONCLUSIONS Among people with prior TB, pulmonary abnormalities on digital chest X-ray are inversely associated with prevalent diabetes. The severity of radiographic post-TB lung disease does not appear to be a determinant of diabetes in this South African population.
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Affiliation(s)
- Alison C Castle
- Africa Health Research Institute, KwaZulu-Natal, Durban, South Africa.
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States of America.
- Harvard Medical School, Boston, MA, United States of America.
| | - Yumna Moosa
- Africa Health Research Institute, KwaZulu-Natal, Durban, South Africa
- University of KwaZulu-Natal, KwaZulu-Natal, Durban, South Africa
| | - Helgard Claassen
- Africa Health Research Institute, KwaZulu-Natal, Durban, South Africa
| | - Sheela Shenoi
- Division of Infectious Diseases, Yale School of Medicine, New Haven, Connecticut, USA
| | - Itai Magodoro
- Department of Medicine, University of Cape Town, Cape Town, South Africa
| | - Jennifer Manne-Goehler
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States of America
- Harvard Medical School, Boston, MA, United States of America
| | - Willem Hanekom
- Africa Health Research Institute, KwaZulu-Natal, Durban, South Africa
- University of KwaZulu-Natal, KwaZulu-Natal, Durban, South Africa
| | - Ingrid V Bassett
- Africa Health Research Institute, KwaZulu-Natal, Durban, South Africa
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States of America
- Harvard Medical School, Boston, MA, United States of America
| | - Emily B Wong
- Africa Health Research Institute, KwaZulu-Natal, Durban, South Africa
- University of KwaZulu-Natal, KwaZulu-Natal, Durban, South Africa
- Division of Infectious Diseases, University of Alabama Birmingham, Birmingham, AL, United States of America
| | - Mark J Siedner
- Africa Health Research Institute, KwaZulu-Natal, Durban, South Africa
- Division of Infectious Diseases, Massachusetts General Hospital, Boston, MA, United States of America
- Harvard Medical School, Boston, MA, United States of America
- University of KwaZulu-Natal, KwaZulu-Natal, Durban, South Africa
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Tepekule Mueller B, Joerimann L, Schenkel CD, Opitz L, Tschumi J, Wolfensberger R, Neumann K, Kusejko K, Zeeb M, Boeck L, Kaelin M, Notter J, Furrer H, Hoffmann M, Hirsch HH, Calmy A, Cavassini M, Labhardt ND, Bernasconi E, Metzner KJ, Braun DL, Guenthard HF, Kouyos RD, Duffy F, Nemeth J. Mycobacterium tuberculosis infection associated immune perturbations correlate with antiretroviral immunity. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.07.14.548872. [PMID: 37649906 PMCID: PMC10465018 DOI: 10.1101/2023.07.14.548872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Infection with Mycobacterium tuberculosis (MTB) remains one of the most important opportunistic infections in people with HIV-1 (PWH). While active Tuberculosis (TB) leads to rapid progression of immunodeficiency in PWH, the interaction between MTB and HIV-1 during the asymptomatic phase of both infections remains poorly understood. In a cohort of individuals with HIV (PWH) with and without suppressed HIV-1 viral load, the transcriptomic profiles of peripheral blood mononuclear cells (PBMC) clustered in individuals infected with Mycobacterium tuberculosis (MTB) compared to carefully matched controls. Subsequent functional annotation analysis disclosed alterations in the IL-6, TNF, and KRAS pathways. Notably, MTB-associated genes demonstrated an inverse correlation with HIV-1 viremia, evident at both on individual gene level and when employed as a gene score. In sum, our data show that MTB infection in PWH is associated with a shift in the activation state of the immune system, displaying an inverse relationship with HIV-1 viral load. These results could provide an explanation for the observed increased antiretroviral control associated with MTB infection in PWH.
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Zhao L, Fan K, Sun X, Li W, Qin F, Shi L, Gao F, Zheng C. Host-directed therapy against mycobacterium tuberculosis infections with diabetes mellitus. Front Immunol 2024; 14:1305325. [PMID: 38259491 PMCID: PMC10800548 DOI: 10.3389/fimmu.2023.1305325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Accepted: 12/11/2023] [Indexed: 01/24/2024] Open
Abstract
Tuberculosis (TB) is caused by the bacterial pathogen Mycobacterium tuberculosis (MTB) and is one of the principal reasons for mortality and morbidity worldwide. Currently, recommended anti-tuberculosis drugs include isoniazid, rifampicin, ethambutol, and pyrazinamide. TB treatment is lengthy and inflicted with severe side-effects, including reduced patient compliance with treatment and promotion of drug-resistant strains. TB is also prone to other concomitant diseases such as diabetes and HIV. These drug-resistant and complex co-morbid characteristics increase the complexity of treating MTB. Host-directed therapy (HDT), which effectively eliminates MTB and minimizes inflammatory tissue damage, primarily by targeting the immune system, is currently an attractive complementary approach. The drugs used for HDT are repositioned drugs in actual clinical practice with relative safety and efficacy assurance. HDT is a potentially effective therapeutic intervention for the treatment of MTB and diabetic MTB, and can compensate for the shortcomings of current TB therapies, including the reduction of drug resistance and modulation of immune response. Here, we summarize the state-of-the-art roles and mechanisms of HDT in immune modulation and treatment of MTB, with a special focus on the role of HDT in diabetic MTB, to emphasize the potential of HDT in controlling MTB infection.
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Affiliation(s)
- Li Zhao
- Department of Tuberculosis III, Wuhan Pulmonary Hospital, Wuhan, Hubei, China
| | - Ke Fan
- Department of Tuberculosis III, Wuhan Pulmonary Hospital, Wuhan, Hubei, China
| | - Xuezhi Sun
- Department of Tuberculosis III, Wuhan Pulmonary Hospital, Wuhan, Hubei, China
| | - Wei Li
- Department of Tuberculosis III, Wuhan Pulmonary Hospital, Wuhan, Hubei, China
| | - Fenfen Qin
- Department of Tuberculosis III, Wuhan Pulmonary Hospital, Wuhan, Hubei, China
| | - Liwen Shi
- Department of Tuberculosis III, Wuhan Pulmonary Hospital, Wuhan, Hubei, China
| | - Feng Gao
- Department of Endocrinology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Chunlan Zheng
- Department of Tuberculosis III, Wuhan Pulmonary Hospital, Wuhan, Hubei, China
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