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Cheng Y, Wang G, Zhang W, Zhang H, Wang X. Feasibility and long-term safety of Ho:YAG laser lithotripsy in broncholithiasis patients. BMC Pulm Med 2021; 21:81. [PMID: 33691662 PMCID: PMC7944618 DOI: 10.1186/s12890-021-01407-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Accepted: 01/11/2021] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Treatment of broncholithiasis is complex, especially in the case of a large or transbronchial broncholith. Holmium-yttrium aluminum garnet (Ho:YAG) laser lithotripsy may be a useful treatment in broncholithiasis; however, as it is not yet common practice, the optimal parameters are unknown. METHODS We performed a single-center retrospective analysis of the clinical data of 13 broncholithiasis patients who underwent Ho:YAG laser lithotripsy from May 2012 to October 2018. RESULTS For the 13 patients (2 males and 11 females), Ho:YAG laser lithotripsy was performed 17 times, in total. All procedures were performed under general anesthesia with rigid bronchoscopy. We initially set the Ho:YAG laser to a pulse frequency of 5 Hz and a pulse energy of 0.8 J, gradually increasing these as required. The pulse frequency range we employed was 5-15 Hz, and the pulse energy range was 0.8-1.6 J. All broncholiths were successfully extracted after lithotripsy, and all symptoms improved. Hemoptysis, bronchial esophageal fistula, and pneumonia were the most common complications; however, there were no long-term complications. CONCLUSIONS Ho:YAG laser lithotripsy is an effective and safe treatment for broncholithiasis, over a long-term follow up.
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Affiliation(s)
- Yuan Cheng
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, 8 Xi Shi Ku Street, Xi Cheng District, Beijing, 100034, China
| | - Guangfa Wang
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, 8 Xi Shi Ku Street, Xi Cheng District, Beijing, 100034, China.
| | - Wei Zhang
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, 8 Xi Shi Ku Street, Xi Cheng District, Beijing, 100034, China
| | - Hong Zhang
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, 8 Xi Shi Ku Street, Xi Cheng District, Beijing, 100034, China
| | - Xi Wang
- Department of Respiratory and Critical Care Medicine, Peking University First Hospital, 8 Xi Shi Ku Street, Xi Cheng District, Beijing, 100034, China
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DHX36, BAX, and ARPC1B May Be Critical for the Diagnosis and Treatment of Tuberculosis. Can Respir J 2020; 2020:4348371. [PMID: 32774561 PMCID: PMC7396107 DOI: 10.1155/2020/4348371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 06/17/2020] [Indexed: 12/29/2022] Open
Abstract
Background Tuberculosis (TB) is usually caused by Mycobacterium tuberculosis, which has the highest mortality rate among infectious diseases. This study is designed to identify the key genes affecting the diagnosis and treatment of TB. Methods GSE54992, which included 39 peripheral blood mononuclear cell (PBMC) samples, was extracted from the Gene Expression Omnibus database. After the samples were classified into type and time groups by limma package, the differentially expressed genes (DEGs) were analyzed using the Analysis of Variance. Using pheatmap package, hierarchical cluster analysis was performed for the DEGs. Then, the key modules correlated with TB were selected using the WGCNA package. Finally, functional and pathway enrichment analyses were carried out using clusterProfiler package. Results The DEGs in subclusters 3, 6, 7, and 8 were chosen for further analyses. Based on WGCNA analysis, blue and green modules in type group and pink module in time group were selected as key modules. From the key modules, 9 (including BAX and ARPC1B) hub genes in type group and 6 (including DHX36) hub genes in time group were screened. Through pathway enrichment analysis, the TNF signaling pathway was enriched for the green module. Conclusion DHX36, BAX, and ARPC1B might be key genes acting in the mechanisms of TB. Besides, the TNF signaling pathway might also be critical for the diagnosis and therapy of the disease.
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Zhang Z, Wang W, Zhou M, Lu PYJ, Li Y, Chen Y. An Observational Study of Sex Differences in Takayasu Arteritis in China: Implications for Worldwide Regional Differences. Ann Vasc Surg 2020; 66:309-317. [DOI: 10.1016/j.avsg.2019.12.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 12/02/2019] [Accepted: 12/05/2019] [Indexed: 11/28/2022]
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Hu P, Zhang H, Fleming J, Zhu G, Zhang S, Wang Y, Liu F, Yi S, Chen Z, Chen Z, Liu B, Gong D, Wan L, Wang X, Tan Y, Bai L, Bi L. Retrospective Analysis of False-Positive and Disputed Rifampin Resistance Xpert MTB/RIF Assay Results in Clinical Samples from a Referral Hospital in Hunan, China. J Clin Microbiol 2019; 57:e01707-18. [PMID: 30674578 PMCID: PMC6440781 DOI: 10.1128/jcm.01707-18] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 01/16/2019] [Indexed: 11/20/2022] Open
Abstract
Concerns about the specificity of the Xpert MTB/RIF (Xpert) assay have arisen, as false-positive errors in the determination of Mycobacterium tuberculosis complex (MTBC) infection and rifampin (RIF) resistance in clinical practice have been reported. Here, we investigated 33 cases where patients were determined to be RIF susceptible using the Bactec MGIT 960 (MGIT) culture system but RIF resistant using the Xpert assay. Isolates from two of these patients were found not to have any mutations in the rifampin resistance determining region (RRDR) region of rpoB and had good treatment outcomes with first-line antituberculosis (anti-TB) drugs. The remaining 31 patients included 5 new cases and 26 previously treated patients. A large number of well-documented disputed mutations, including Leu511Pro, Asp516Tyr, His526Asn, His526Leu, His526Cys, and Leu533Pro, were detected, and mutations, including a 508 to 509 deletion and His526Gly, were described here as disputed mutations for the first time. Twenty-one (81%) of the 26 previously treated patients had poor treatment outcomes, and isolates from 19 (90%) of these 21 patients were resistant to isoniazid (INH) as determined using the MGIT culture system. Twenty-seven of the 31 isolates with disputed rpoB mutations were phenotypically resistant to INH, 21 (78%) being predicted by GenoType MTBDRplus to have a high level of INH resistance. Most (77.4%) of the isolates with disputed mutations were of the Beijing lineage. These findings have implications for the interpretation of false-positive and disputed rifampin resistance Xpert MTB/RIF results in clinical samples and provide guidance on how clinicians should manage patients carrying isolates with disputed rpoB mutations.
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Affiliation(s)
- Peilei Hu
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- University of Chinese Academy of Sciences, Beijing, China
- Clinical Laboratory, Hunan Chest Hospital, Changsha, China
| | - Hongtai Zhang
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Joy Fleming
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Guofeng Zhu
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Shuai Zhang
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Yaguo Wang
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Fengping Liu
- Clinical Laboratory, Hunan Chest Hospital, Changsha, China
| | - Songlin Yi
- Clinical Laboratory, Hunan Chest Hospital, Changsha, China
| | - Zhongnan Chen
- Clinical Laboratory, Hunan Chest Hospital, Changsha, China
| | - Zhenhua Chen
- Clinical Laboratory, Hunan Chest Hospital, Changsha, China
| | - Binbin Liu
- Clinical Laboratory, Hunan Chest Hospital, Changsha, China
| | - Daofang Gong
- Clinical Laboratory, Hunan Chest Hospital, Changsha, China
| | - Li Wan
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Xingyun Wang
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Yunhong Tan
- Clinical Laboratory, Hunan Chest Hospital, Changsha, China
| | - Liqiong Bai
- Clinical Laboratory, Hunan Chest Hospital, Changsha, China
| | - Lijun Bi
- Key Laboratory of RNA Biology, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- School of Stomatology and Medicine, Foshan University, Foshan, Guangdong, China
- Guangdong Province Key Laboratory of TB Systems Biology and Translational Medicine, Foshan, Guangdong, China
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Abstract
Gender inequality has severe consequences on public health in terms of delay in diagnosis of pulmonary tuberculosis (PTB). In order to explore gender-related differences in diagnosis delay, a cross-sectional study of 10 686 patients diagnosed with PTB in Yulin from 1 January 2009 to 31 December 2014 was conducted. Diagnosis delay was categorised into ‘short delay’ and ‘long delay’ by four commonly used cut-off points of 14, 30, 60 and 90 days. Logistic regression analysis was used to analyse gender differences in diagnostic delay. Stratified analyses by smear results, age, urban/rural were performed to examine whether the effect persisted across the strata. The median delay was 31 days (interquartile range 13–65). Diagnostic delay in females at cut-off points of 14, 30, 60 and 90 days had odds ratios (OR) of 0.99 (95% CI 0.91–1.09), 1.09 (95% CI 1.01–1.18), 1.15 (95% CI 1.05–1.26) and 1.18 (95% CI 1.06–1.31), respectively, compared with males. Stratified analysis showed that females were associated with increased risk of longer delay among those aged 30–60 years, smear positive and living in the rural areas (P < 0.05). The female-to-male OR increased along with increased delay time. Further inquiry into the underlying reasons for gender differences should be urgently addressed to improve the current situation.
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Tuberculosis among Full-Time Teachers in Southeast China, 2005⁻2016. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15092024. [PMID: 30227616 PMCID: PMC6163467 DOI: 10.3390/ijerph15092024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 09/12/2018] [Accepted: 09/13/2018] [Indexed: 12/20/2022]
Abstract
Objective: To explore the incidence rate and characteristics of tuberculosis (TB) among full-time teachers from 2005 to 2016 in southeast China and to provide a basis for TB prevention and control measures in schools. Methods: Information about full-time teachers with TB was obtained from the National Tuberculosis Information Management System (NTIMS). Population data were collected from the Zhejiang Statistical Yearbook and the Zhejiang Education Yearbook. The TB incidence rates and epidemiological characteristics of full-time teachers were analyzed and the Chi-square test was used to analyze influencing factors of epidemiological characteristics and clinical characteristics, case-finding delay, and treatment outcomes. Results: A total of 1795 teachers with TB were reported from 2005 to 2016, and the annual incidence rate was 28.87 per 100,000. The average annual PTB (pulmonary TB) incidence rate among full-time teachers was 25.43/100,000 from 2005 to 2016 and the average annual PTB incidence rate among students was 15.40/100,000 from 2005 to 2016. The highest average incidence rates were observed in the QZ (Quzhou) and HZ (Hangzhou) districts. The male-to-female ratio of the patients was 0.95:1. Approximately half of the patients were 15–40 years old. The mean case-finding interval was 45.3 days. Multivariable logistic regression analysis of TB case-finding delay among full-time teachers revealed that the older (OR = 1.44, 95% CI = 1.18–1.76, p < 0.01), not local (OR = 1.81, 95% CI = 1.20–2.73, p < 0.01), retreatment (OR = 2.06, 95% CI = 1.39–3.08, p < 0.01) and extra-pulmonary tuberculosis (OR = 1.71, 95% CI = 1.13–2.61, p = 0.01) cases were at high risk of case-finding delay. Compared to physical examination, patients detected by referrals and tracking (OR = 2.26, 95% CI = 1.16–4.38, p = 0.02) and patients who directly visited the designated TB hospital (OR = 2.00, 95% CI = 1.03–3.88, p = 0.04) were more prone to case-finding delay. The cure rate of full-time teachers with TB was 77.10%. The cure rates differed significantly between groups classified based on age, case-finding patterns, diagnostic results, treatment classifications, and strategies of patient management. Conclusion: The TB incidence rate among full-time teachers decreased from 2005 to 2016, but teachers suffered a higher risk of TB than students. Western Zhejiang was a hotspot for TB incidence among full-time teachers. Female teacher and young and middle-aged teacher cases account for the majority of the reported patients. There was a case-finding delay among full-time teachers with TB. We should conduct regular physical examinations and strengthen full-course supervision to reduce the risk of TB patients with case-finding delay and increase the TB cure rate.
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Abstract
OBJECTIVE Animal studies showed that male subjects had lower activity of immune response to infections than female subjects, which may increase the risk of the development of tuberculosis in male population. This study intended to investigate the risk of incident tuberculosis in male and female adults in Taiwan. DESIGN This is a retrospective cohort study. SETTING The present analyses used data of Taiwan National Health Interview Survey 2001, 2005 and 2009, National Register of Deaths Dataset, and National Health Insurance Research Database from 2000 to 2013. PARTICIPANTS A total of 43 424 subjects with a mean age of 43.04 years were analysed. PRIMARY OUTCOME MEASURES Incidence of tuberculosis. RESULTS During 381 561 person-years of follow-up period, incident tuberculosis was recognised in 268 individuals. The incidence rates of tuberculosis were 97.56 and 43.24 per 100 000 person-years among male and female participants, respectively. Kaplan-Meier curves comparing male and female subjects showed statistical significance (log-rank test, P value<0.01). After adjusting for subjects' demographics and comorbidities, men showed increased risks of incident tuberculosis (adjusted HR, 1.68; 95% CI 1.21 to 2.34; P value<0.01) compared with women. On subgroup analysis, after stratifying by age, smoking and alcohol use, men had a higher risk of incident tuberculosis than women in all patient subgroups, except those who were current smokers. CONCLUSIONS This study suggests that men had a higher risk of incident tuberculosis than women. Future tuberculosis control programmes should particularly target the male population.
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Affiliation(s)
- Yung-Feng Yen
- Section of Infectious Diseases, Taipei City Hospital, Taipei, Taiwan
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Health Care Management, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
- Institute of Public Health and Community Medicine Research Center, National Yang-Ming University, Taipei, Taiwan
- Center for InfectiousDisease and Cancer Research, Kaohsiung MedicalUniversity, Kaohsiung, Taiwan
| | - Hsiao-Yun Hu
- Institute of Public Health and Community Medicine Research Center, National Yang-Ming University, Taipei, Taiwan
- Department of Education and Research, Taipei City Hospital, Taipei, Taiwan
| | - Ya-Ling Lee
- Department of Dentistry, Taipei City Hospital, Taipei, Taiwan
- School of Dentistry, National Yang-Ming University, Taipei, Taiwan
| | - Po-Wen Ku
- Graduate Institute of Sports and Health, National Changhua University of Education, Changhua, Taiwan
| | - Ming-Chung Ko
- Department of Health Care Management, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
- Department of Urology, Taipei City Hospital, Taipei, Taiwan
| | - Pei-Hung Chuang
- Center for Prevention and Treatment of Occupational Injury and Diseases, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of Clinical Toxicology and Occupational Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yun-ju Lai
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Puli Branch of Taichung Veterans General Hospital, Nantou, Taiwan
- Department of Exercise Health Science, National Taiwan University of Sport, Taichung, Taiwan
| | - Dachen Chu
- School of Medicine, National Yang-Ming University, Taipei, Taiwan
- Department of Health Care Management, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
- Department of Neurosurgery, Taipei City Hospital, Taipei, Taiwan
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Alene KA, Yi H, Viney K, McBryde ES, Yang K, Bai L, Gray DJ, Clements ACA, Xu Z. Treatment outcomes of patients with multidrug-resistant and extensively drug resistant tuberculosis in Hunan Province, China. BMC Infect Dis 2017; 17:573. [PMID: 28814276 PMCID: PMC5559784 DOI: 10.1186/s12879-017-2662-8] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 08/01/2017] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND The worldwide emergence of multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB) has posed additional challenges for global tuberculosis (TB) control efforts, as limited treatment options are available and treatment outcomes are often sub-optimal. This study determined treatment outcomes among a cohort of MDR-TB and XDR-TB patients in Hunan Province, China, and identified factors associated with poor treatment outcomes. METHODS We conducted a retrospective study using data obtained from medical records of TB patients in Hunan Chest Hospital, and from the internet-based TB management information system managed by the Tuberculosis Control Institute of Hunan Province, for the period 2011 to 2014. Treatment outcomes were assessed for patients diagnosed with MDR-TB (TB resistant to at least isoniazid and rifampicin) and XDR-TB (MDR-TB plus resistance to any fluoroquinolone and at least 1 second-line injectable drug). Cumulative incidence functions were used to estimate time to events (i.e. poor treatment outcomes, loss to follow-up, and unfavourable treatment outcomes); and a competing-risks survival regression model was used to identify predictors of treatment outcomes. RESULT Of 481 bacteriologically-confirmed patients, with a mean age of 40 years (standard deviation SD ± 13 years), 10 (2%) had XDR-TB and the remainder (471; 98%) had MDR-TB. For the entire cohort, treatment success was 57% (n = 275); 58% (n = 272) for MDR-TB and 30% (n = 3) for XDR-TB. Overall, 27% were lost to follow-up (n = 130), 27% (n = 126) for MDR-TB and 40% (n = 4) for XDR-TB; and 16% had a poor treatment outcome (n = 76), 15% for MDR-TB and 30% (n = 3) for XDR-TB. Of the 10 XDR-TB patients, 3 (30%) completed treatment, 3 (30%) died and 4 (40%) were lost to follow-up. Of the 471 MDR-TB patients, 258 (57%) were cured, 16 (3%) completed treatment, 13 (3%) died, 60 (13%) experienced treatment failure, and 126 (27%) were lost to follow-up. Resistance to ofloxacin was an independent predictor of poor (AHR = 3.1; 95%CI = 1.5, 6.3), and unfavourable (AHR = 1.7; 95%CI = 1.07, 2.9) treatment outcomes. Patients who started treatment during 2011-2012 (AHR = 2.8; 95% CI = 1.5, 5.3) and 2013 (AHR = 2.1; 95% CI = 1.2, 3.9) had poorer treatment outcomes compared to patients who started treatment during 2014. CONCLUSION Patients with MDR-TB and XDR-TB had low rates of treatment success in Hunan Province, especially among patients who started treatment during 2011 to 2013, with evidence of improved treatment outcomes in 2014. Resistance to ofloxacin was an independent predictor of poor treatment outcomes.
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Affiliation(s)
- Kefyalew Addis Alene
- Research School of Population Health, College of Medicine, Biology and Environment, The Australian National University, Canberra, ACT Australia
- Institute of Public Health, College of Medicine and Health Sciences, University of Gondar, Gondar, Ethiopia
| | - Hengzhong Yi
- Department of MDR-TB, Internal Medicine, Hunan Chest hospital, Changsha city, Hunan Province China
| | - Kerri Viney
- Research School of Population Health, College of Medicine, Biology and Environment, The Australian National University, Canberra, ACT Australia
- Centre for Global Health, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden
| | - Emma S. McBryde
- Australian Institute of Tropical Health and Medicine, James Cook University, Townsville, QLD Australia
| | - Kunyun Yang
- Department of MDR-TB, Internal Medicine, Hunan Chest hospital, Changsha city, Hunan Province China
| | - Liqiong Bai
- Department of Director’s Office, Tuberculosis Control Institute of Hunan Province, Changsha city, Hunan Province China
| | - Darren J. Gray
- Research School of Population Health, College of Medicine, Biology and Environment, The Australian National University, Canberra, ACT Australia
| | - Archie C. A. Clements
- Research School of Population Health, College of Medicine, Biology and Environment, The Australian National University, Canberra, ACT Australia
| | - Zuhui Xu
- Department of Tuberculosis Control, Tuberculosis Control Institute of Hunan Province, Changsha city, Hunan Province China
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Abstract
Chitotriosidase, secreted by activated macrophages, is a biomarker of activated macrophages. In this study, we explored whether chitotriosidase could be adopted as a biomarker to evaluate the curative effect on tuberculosis (TB). Five counties were randomly selected out of 122 counties/cities/districts in Hunan Province, China. Our cases were all TB patients who were newly diagnosed or had been receiving treatment at the Centers for Disease Control (CDCs) of these five counties between April and August in 2009. Healthy controls were selected from a community health facility in the Kaifu district of Changsha City after frequency-matching of gender and age with the cases. Chitotriosidase activity was evaluated by a fluorometric assay. Categorical variables were analysed with the χ2 test. Measurement data in multiple groups were tested with analysis of variance and least significant difference (LSD). Correlation between chitotriosidase activity and the degree of radiological extent (DRE) was examined by Spearman's rank correlation test. The average chitotriosidase activity levels of new TB cases, TB cases with different periods of treatment (<3, 3–6, >6 months) and the control group were 54·47, 34·77, 21·54, 12·73 and 10·53 nmol/h.ml, respectively. Chitotriosidase activity in TB patients declined along with the continuity of treatment. The chitotriosidase activity of both smear-positive and the smear-negative pulmonary TB patients decreased after 6 months' treatment to normal levels (P < 0·05). Moreover, chitotriosidase activity was positively correlated with DRE (r = 0·607, P < 0·001). Our results indicate that chitotriosidase might be a marker of TB treatment effects. However, further follow-up study of TB patients is needed in the future.
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Impact of tea drinking upon tuberculosis: a neglected issue. BMC Public Health 2015; 15:515. [PMID: 26021567 PMCID: PMC4446809 DOI: 10.1186/s12889-015-1855-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Accepted: 05/19/2015] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Tuberculosis (TB) is a global public health issue posing serious harm to the human health. Many studies have suggested that smoking and excessive alcohol consumption are risk factors for TB. Laboratory evidence suggests that EGCG in tea leaves can arrest the growth of tubercle bacillus. Can drinking tea lead to decreased susceptibility of TB in humans? METHODS A total of 574 TB patients and 582 healthy controls were recruited to participate in this case-control study. Self-designed questionnaire was used to collect data. Unconditioned logistic regression analysis was conducted to identify the associations between tea drinking and TB. RESULTS Tea drinking has a negative association with TB, with OR = 0.583(0.423, 0.804) and P < 0.05. Drinking black tea, oolong and green tea are all negative association with TB, with OR being 0.683(0.517, 0.902), 0.674(0.508, 0.894) and 0.534(0.349, 0.817) respectively and P < 0.05. Trend χ (2) test indicated a decreasing risk for TB with increased tea consumption, with P < 0.05. CONCLUSION There is a significance negative association between tea drinking and TB. Promoting the consumption of tea as the daily drink among populations, particularly those with high TB risk, may reduce the incidence of TB in the populations.
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Chen M, Liang Y, Li W, Wang M, Hu L, Abuaku BK, Huang X, Tan H, Wen SW. Impact of MBL and MASP-2 gene polymorphism and its interaction on susceptibility to tuberculosis. BMC Infect Dis 2015; 15:151. [PMID: 25887173 PMCID: PMC4399571 DOI: 10.1186/s12879-015-0879-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Accepted: 03/10/2015] [Indexed: 12/17/2022] Open
Abstract
Background Mannose-binding lectin (MBL) and MBL-associated serine proteases 2 (MASP-2) are important proteins in the lectin pathway of the immune system. Polymorphism of MBL and MASP-2 genes may affect the serum concentration of MBL and MASP-2. This study explores the association between MBL and MASP-2 gene polymorphism and their interactions and the susceptibility to tuberculosis (TB). Method A total of 503 patients with TB and 419 healthy controls were recruited to participate in this case-control study. PCR-SSP technology was applied to genotype rs7096206 of MBL genes and rs2273346 and rs6695096 of MASP-2 genes. Demographic data and some exposure information were also obtained from study participants. Unconditional logistic regression analysis was used to identify association between the various factors and TB whilst Marginal Structural Linear Odds Models were used to estimate the interactions. Results Both genotype GC at rs7096206 of MBL genes and genotype TC at rs2273346 and rs6695096 of MASP-2 genes were more prevalent in the TB patient group than the healthy control group (P < 0.05, OR 1.393, 1.302 and 1.426 respectively). The relative excess risk of interaction (RERI) between rs7096206 of MBL genes and rs2273346 and rs6695096 of MASP-2 genes was 0.897 (95% CI: 0.282, 1.513) and 1.142 (95% CI: 0.755, 1.530) respectively (P < 0.05). Conclusion Polymorphisms of MBL (rs7096206) and MASP-2 (rs2273346 and rs6695096) were associated with the susceptibility of TB, and there were gene-gene interactions among them.
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Affiliation(s)
- Mengshi Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan, 410008, PR China. .,Hunan Children's Hospital, Ziyuan RD 86, Changsha, Hunan, 410007, PR China.
| | - Ying Liang
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan, 410008, PR China. .,School of Public Health, Xinjiang Medical University, Urumqi, Xijiang, 830054, PR China.
| | - Wufei Li
- Department of Nursing, Shaoyang Medical College, Shaoyang, Hunan, 422000, PR China.
| | - Mian Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan, 410008, PR China.
| | - Li Hu
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan, 410008, PR China. .,Beijing Center for Diseases Prevention and Control, Beijing, 100013, PR China.
| | - Benjamin Kwaku Abuaku
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan, 410008, PR China. .,Department of Epidemiology, Noguchi Memorial Institute for Medical Research, College of Health Sciences, University of Ghana, PO Box LG581, Legon, Accra, Ghana.
| | - Xin Huang
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan, 410008, PR China.
| | - Hongzhuan Tan
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan, 410008, PR China.
| | - Shi Wu Wen
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan, 410008, PR China. .,Department of Obstetrics & Gynecology, University of Ottawa, The Ottawa Hospital, 501 Smyth Road, Ottawa, Ontario, Canada.
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Gender-dependent differences in plasma matrix metalloproteinase-8 elevated in pulmonary tuberculosis. PLoS One 2015; 10:e0117605. [PMID: 25635689 PMCID: PMC4312016 DOI: 10.1371/journal.pone.0117605] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 12/29/2014] [Indexed: 11/19/2022] Open
Abstract
Tuberculosis (TB) remains a global health pandemic and greater understanding of underlying pathogenesis is required to develop novel therapeutic and diagnostic approaches. Matrix metalloproteinases (MMPs) are emerging as key effectors of tissue destruction in TB but have not been comprehensively studied in plasma, nor have gender differences been investigated. We measured the plasma concentrations of MMPs in a carefully characterised, prospectively recruited clinical cohort of 380 individuals. The collagenases, MMP-1 and MMP-8, were elevated in plasma of patients with pulmonary TB relative to healthy controls, and MMP-7 (matrilysin) and MMP-9 (gelatinase B) were also increased. MMP-8 was TB-specific (p<0.001), not being elevated in symptomatic controls (symptoms suspicious of TB but active disease excluded). Plasma MMP-8 concentrations inversely correlated with body mass index. Plasma MMP-8 concentration was 1.51-fold higher in males than females with TB (p<0.05) and this difference was not due to greater disease severity in men. Gender-specific analysis of MMPs demonstrated consistent increase in MMP-1 and -8 in TB, but MMP-8 was a better discriminator for TB in men. Plasma collagenases are elevated in pulmonary TB and differ between men and women. Gender must be considered in investigation of TB immunopathology and development of novel diagnostic markers.
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Chen M, Deng J, Su C, Li J, Wang M, Abuaku BK, Hu S, Tan H, Wen SW. Impact of passive smoking, cooking with solid fuel exposure, and MBL/MASP-2 gene polymorphism upon susceptibility to tuberculosis. Int J Infect Dis 2014; 29:1-6. [PMID: 25312983 DOI: 10.1016/j.ijid.2014.08.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 07/15/2014] [Accepted: 08/16/2014] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND To explore the impact of passive smoking, cooking with solid fuel, mannose-binding lectin (MBL) gene, MBL-associated serine proteases 2 (MASP-2) gene, and gene-environment interactions on the susceptibility to tuberculosis (TB) in non-smokers. METHODS A total of 205 TB patients and 216 healthy controls were recruited to participate in this case-control study. PCR with sequence-specific primers (PCR-SSP) technology was leveraged to genotype rs7096206 of MBL genes and rs2273346 and rs6695096 of MASP-2 genes. Demographic data and information on exposures of participants were collected. Unconditioned logistic regression analysis was conducted to identify associations between the various factors and TB, and marginal structural linear odds models were used to estimate the interactions. RESULTS Passive smoking and cooking with solid fuel were associated with the risk of TB, with odds ratios (OR) of 1.58 and 2.93, respectively (p<0.05). Genotype CG at rs7096206 of MBL genes (OR 2.02) and genotype TC at rs6695096 of MASP-2 genes (OR 1.67) were more prevalent in the TB patients than in healthy controls (p<0.05). The relative excess risk of interaction (RERI) between rs7096206 of MBL genes and passive smoking or cooking with solid fuel exposure was 1.86 (95% confidence interval (CI) 0.59-3.16) and 2.66 (95% CI 1.85-3.47), respectively. The RERI between rs6695096 of MASP-2 genes and cooking with solid fuel exposure was 3.70 (95% CI 2.63-4.78), which was also a positive interaction. However, the RERI between rs6695096 of MASP-2 genes and passive smoking was not statistically significant. CONCLUSIONS Passive smoking, cooking with solid fuel, and polymorphisms of MBL (rs7096206) and MASP-2 (rs6695096) genes were associated with susceptibility to TB in non-smokers, and there were gene-environment interactions among them. Further studies are needed to explore details of the mechanisms of association.
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Affiliation(s)
- Mengshi Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan 410008, PR China; Hunan Children's Hospital, Changsha, Hunan, PR China
| | - Jing Deng
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan 410008, PR China
| | - Congxu Su
- Yueyanglou Center for Disease Control and Prevention, Yueyang, Hunan, PR China
| | - Jun Li
- Hunan Provincial Tumor Hospital, Changsha, Hunan, PR China
| | - Mian Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan 410008, PR China
| | - Benjamin Kwaku Abuaku
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan 410008, PR China
| | - ShiMin Hu
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan 410008, PR China
| | - Hongzhuan Tan
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan 410008, PR China.
| | - Shi Wu Wen
- Department of Epidemiology and Health Statistics, School of Public Health, Central South University, Changsha, Hunan 410008, PR China; Department of Obstetrics and Gynecology, University of Ottawa, The Ottawa Hospital, Ottawa, Ontario, Canada; Department of Epidemiology and Community Medicine, University of Ottawa, The Ottawa Hospital, Ottawa, Ontario, Canada
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