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Liu Y, Tang XL, Ni Y, Duan LZ, Jing FJ. Diagnostic value of the creatine kinase-MB/creatine kinase and neutrophil/lymphocyte ratios in acute myocardial infarction. J Cardiothorac Surg 2024; 19:227. [PMID: 38627839 PMCID: PMC11020768 DOI: 10.1186/s13019-024-02740-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 03/29/2024] [Indexed: 04/19/2024] Open
Abstract
OBJECTIVE To investigate the clinical significance of the creatine kinase (CK)-MB/total CK ratio, neutrophil/lymphocyte ratio (NLR) and red blood cell distribution width in acute myocardial infarction (AMI). METHODS A retrospective analysis was conducted of 196 AMI cases from our hospital's cardiology department; healthy people were selected over the same period as the control. The two groups' test indexes were compared through multivariate logistic regression analysis to screen for AMI risk factors; the receiver operating characteristic (ROC) curve was used to evaluate their AMI predictive values. RESULTS The serum CK, CK-MB, CK index, neutrophils and NLR values in the AMI group were significantly higher compared with those in the control group (p < 0.05); however, the levels of serum lymphocytes were significantly lower compared with those in the control group (p < 0.05). Multivariate logistic regression analysis showed that elevated CK-MB and NLR levels were risk factors for AMI (p < 0.05). The ROC curve showed that the area under the curve of the NLR and CK levels were 0.917 and 0.594, respectively. CONCLUSION The CK index and NLR have a clinical predicting value for AMI and could be used as a clinical auxiliary diagnostic index for the assessment of patients with AMI.
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Affiliation(s)
- Yin Liu
- Clinical laboratory, Traditional Chinese Medicine Hospital of Wuhu, Wuhu, 241000, China
| | - Xiao-Lei Tang
- Science and technology department, The Second Affiliated Hospital of Wannan Medical College, No.10, Kangfu Road, Jinghu district, Wuhu City, 241000, Anhui Province, China.
| | - Yong Ni
- Clinical laboratory, Traditional Chinese Medicine Hospital of Wuhu, Wuhu, 241000, China
| | - Li-Zhong Duan
- Clinical laboratory, Traditional Chinese Medicine Hospital of Wuhu, Wuhu, 241000, China
| | - Feng-Jun Jing
- Clinical laboratory, Traditional Chinese Medicine Hospital of Wuhu, Wuhu, 241000, China
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Hu FH, Tang XL, Ge MW, Jia YJ, Zhang WQ, Tang W, Shen LT, Du W, Xia XP, Chen HL. Mortality of children and adolescents co-infected with tuberculosis and HIV: a systematic review and meta-analysis. AIDS 2024:00002030-990000000-00462. [PMID: 38499478 DOI: 10.1097/qad.0000000000003886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
OBJECTIVE Children and adolescents with HIV infection are well-known to face a heightened risk of tuberculosis. However, the exact mortality rates and temporal trends of those with HIV-TB co-infection remain unclear. We aimed to identify the overall mortality and temporal trends within this population. METHODS PubMed, Web of Science, and Embase were employed to search for publications reporting on the mortality rates of children and adolescents with HIV-TB co-infection from inception to March 2, 2024. The outcome is the mortality rate for children and adolescents with HIV-TB co-infection during the follow-up period. In addition, we evaluate the temporal trends of mortality. RESULTS During the follow-up period, the pooled mortality was 16% (95% CI 13-20). Single infection of either HIV or TB exhibit lower mortality rates (6% and 4%, respectively). We observed elevated mortality risks among individuals aged less than 12 months, those with EPTB, poor adherence to ART, and severe immunosuppression. In addition, we observed a decreasing trend in mortality before 2008 and an increasing trend after 2008, although the trends were not statistically significant (P = 0.08 and 0.2 respectively). CONCLUSIONS Children and adolescents with HIV-TB co-infection bear a significant burden of mortality. Timely screening, effective treatment, and a comprehensive follow-up system contribute to reducing the mortality burden in this population.
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Affiliation(s)
- Fei-Hong Hu
- Medical School of Nantong University, Nantong, Jiangsu, PR China
| | - Xiao-Lei Tang
- Department of general surgery, Affiliated Hospital of Nantong University, Jiangsu, PR China
| | - Meng-Wei Ge
- Medical School of Nantong University, Nantong, Jiangsu, PR China
| | - Yi-Jie Jia
- Medical School of Nantong University, Nantong, Jiangsu, PR China
| | - Wan-Qing Zhang
- Medical School of Nantong University, Nantong, Jiangsu, PR China
| | - Wen Tang
- Medical School of Nantong University, Nantong, Jiangsu, PR China
| | - Lu-Ting Shen
- Medical School of Nantong University, Nantong, Jiangsu, PR China
| | - Wei Du
- Medical School of Nantong University, Nantong, Jiangsu, PR China
| | - Xiao-Peng Xia
- Department of Orthopaedics, Traditional Chinese Medical Hospital of Nantong City, Nantong, Jiangsu, PR China
| | - Hong-Lin Chen
- School of Public Health, Nantong University, Nantong, Jiangsu, PR China
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Peng YJ, Li YH, Du C, Guo YS, Song JT, Jia CY, Zhang X, Liu MJ, Wang ZM, Liu B, Yan SL, Yang YX, Tang XL, Lin GX, Li XY, Zhang Y, Yuan JH, Xu SK, Chen CD, Lu JH, Zou X, Wan CS, Hu QH. [The cases of tracing the source of patients infected with Omicron variant of SARS-CoV-2 based on wastewater-based epidemiology in Shenzhen]. Zhonghua Yi Xue Za Zhi 2024; 104:302-307. [PMID: 38246776 DOI: 10.3760/cma.j.cn112137-20231016-00766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Wastewater-based epidemiology (WBE) is an emerging discipline, which has been applied to drug abuse tracking and infectious disease pathogen surveillance. During the COVID-19 epidemic, WBE has been applied to monitor the epidemic trend and SARS-CoV-2 variants etc. In order to detect hidden COVID-19 cases and prevent transmission in the community, wastewater surveillance system for monitoring SARS-CoV-2 RNA was developed in Shenzhen. The sewage sampling sites were set up in key places such as the port areas, urban villages and residential communities of Futian, Nanshan, Luohu and Yantian districts. From July 26 to November 30, 2022, a total of 369 sewage sampling sites were set up, covering 1.93 million people. Continuous sampling was carried out for 3 hours in the peak period of water use every day. Sewage virus enrichment and SARS-CoV-2 nucleic acid detection were carried out by polyethylene glycol precipitation method and RT-qPCR, and a positive water sample disposal process was molded. This article aims to introduce the case of source tracing of COVID-19 infected patients based on urban sewage in Shenzhen. The sewage monitoring of Honghu water treatment plant in Luohu District played an early warning role, and the source of infection was traced. In the disposal of positive water samples in Futian South Road, Futian District, the important experience of monitoring point layout was obtained. In the sewage monitoring of Nanshan village, Nanshan District, the existence of occult infection was revealed. Sharing the experience of tracing the source of COVID-19 patients to avoid the spread of COVID-19 in the community based on wastewater surveillance of SARS-CoV-2 RNA in Shenzhen, and summarizing the advantages and application prospects of sewage surveillance can provide new ideas for monitoring emerging or re-emerging pathogens that are known to exhibit gastrointestinal excretion in the future.
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Affiliation(s)
- Y J Peng
- Biosafety Research Center, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Y H Li
- Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - C Du
- Microbiology Laboratory, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Y S Guo
- Division of Public Health Emergency, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - J T Song
- Water Ecology and Environment Division, Shenzhen Ecology and Environment Bureau, Shenzhen 518040, China
| | - C Y Jia
- Water Ecology and Environment Division, Shenzhen Ecology and Environment Bureau, Shenzhen 518040, China
| | - X Zhang
- Water Ecology and Environment Division, Shenzhen Ecology and Environment Bureau, Shenzhen 518040, China
| | - M J Liu
- Futian District Water Affairs Bureau, Shenzhen 518035, China
| | - Z M Wang
- Futian District Water Affairs Bureau, Shenzhen 518035, China
| | - B Liu
- Division of Water Supply and Drainage Management, Futian District Water Affairs Bureau, Shenzhen 518035, China
| | - S L Yan
- Division of Drainage and Disaster Prevention, Nanshan District Water Affairs Bureau, Shenzhen 518052, China
| | - Y X Yang
- Division of Drainage and Disaster Prevention, Nanshan District Water Affairs Bureau, Shenzhen 518052, China
| | - X L Tang
- Luohu Management Branch of Ecology Environment Bureau of Shenzhen Municipality, Shenzhen 518001, China
| | - G X Lin
- Division of Environmental Management, Luohu Management Branch of Ecology Environment Bureau of Shenzhen Municipality, Shenzhen 518001, China
| | - X Y Li
- Futian District Center for Disease Control and Prevention, Shenzhen 518040, China
| | - Y Zhang
- Department of Microbiological Laboratory, Futian District Center for Disease Control and Prevention, Shenzhen 518040, China
| | - J H Yuan
- Nanshan District Center for Disease Control and Prevention, Shenzhen 518054, China
| | - S K Xu
- Department of Infectious Disease Control and Prevention, Nanshan District Center for Disease Control and Prevention, Shenzhen 518054, China
| | - C D Chen
- Luohu District Center for Disease Control and Prevention, Shenzhen 518020, China
| | - J H Lu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - X Zou
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - C S Wan
- Biosafety Research Center, School of Public Health, Southern Medical University, Guangzhou 510515, China BSL-3 Laboratory (Guangdong), Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou 510515, China
| | - Q H Hu
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
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Liu JH, Liu JR, Tang XL, Yang HM, Liu H, Xu H, Li HM, Zhao SY. [Predictive factors for sequelae of bronchitis obliterans in refractory Mycoplasma pneumoniae pneumonia]. Zhonghua Er Ke Za Zhi 2023; 61:317-321. [PMID: 37011976 DOI: 10.3760/cma.j.cn112140-20220902-00775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Abstract
Objective: To investigate the predictive factors for bronchitis obliterans in refractory Mycoplasma pneumoniae pneumonia (RMPP). Methods: A restrospective case summary was conducted 230 patients with RMPP admitted to the Department of No.2 Respiratory Medicine of Beijing Children's Hospital, Capital Medical University from January 2013 to June 2017 were recruited. Clinical data, laboratory results, imaging results and follow-up data were collected. Based on bronchoscopy and imaging findings 1 year after discharge, all patients were divided into two groups: one group had sequelae of bronchitis obliterans (sequelae group) and the other group had not bronchitis obliterans (control group), independent sample t-test and nonparametric test were used to compare the differences in clinical features between the two groups. Receiver operating characteristic (ROC) curve to explore the predictive value of Bronchitis Obliterans in RMPP. Results: Among 230 RMPP children, there were 115 males and 115 females, 95 cases had sequelae group, the age of disease onset was (7.1±2.8) years;135 cases had control group, the age of disease onset was (6.8±2.7) years. The duration of fever, C-reative protein (CRP) and lactate dehydrogenase (LDH) levels, the proportion of ≥2/3 lobe consolidation, pleural effusion and the proportion of airway mucus plug and mucosal necrosis were longer or higher in the sequelae group than those in the control group ((17±9) vs. (12±3) d, (193±59) vs. (98±42) mg/L,730 (660, 814) vs. 486 (452, 522) U/L, 89 cases (93.7%) vs. 73 cases (54.1%), 73 cases (76.8%) vs.59 cases (43.7%), 81 cases (85.3%) vs. 20 cases (14.8%), 67 cases (70.5%) vs. 9 cases (6.7%), t=5.76, 13.35, Z=-6.41, χ2=14.64, 25.04, 22.85, 102.78, all P<0.001). Multivariate Logistic regression analysis showed that the duration of fever ≥10 days (OR=1.200, 95%CI 1.014-1.419), CRP levels increased (OR=1.033, 95%CI 1.022-1.044) and LDH levels increased (OR=1.001, 95%CI 1.000-1.003) were the risk factors for sequelae of bronchitis obliterans in RMPP. ROC curve analysis showed that CRP 137 mg/L had a sensitivity of 82.1% and a specificity of 80.1%; LDH 471 U/L had a sensitivity of 62.7% and a specificity of 60.3% for predicting the development of bronchitis obliterans. Conclusions: The long duration of fever (≥10 d), CRP increase (≥137 mg/L) may be used to predict the occurrence of sequelae of bronchitis obliterans in RMPP. It is helpful for early recognition of risk children.
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Affiliation(s)
- J H Liu
- Department of No.2 Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Disease, National Center for Children's Health, Beijing 100045, China
| | - J R Liu
- Department of No.2 Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Disease, National Center for Children's Health, Beijing 100045, China
| | - X L Tang
- Department of No.2 Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Disease, National Center for Children's Health, Beijing 100045, China
| | - H M Yang
- Department of No.2 Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Disease, National Center for Children's Health, Beijing 100045, China
| | - H Liu
- Department of No.2 Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Disease, National Center for Children's Health, Beijing 100045, China
| | - H Xu
- Department of No.2 Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Disease, National Center for Children's Health, Beijing 100045, China
| | - H M Li
- Department of No.2 Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Disease, National Center for Children's Health, Beijing 100045, China
| | - S Y Zhao
- Department of No.2 Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, China National Clinical Research Center of Respiratory Disease, National Center for Children's Health, Beijing 100045, China
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Yu JJ, Lei S, Li FL, Chen SS, Tang XL. [Effects of Porphyromonas gingivalis injected through tail vein on the expressions of biomarkers in neural stem cells and neurons of wild-type rats hippocampus]. Zhonghua Kou Qiang Yi Xue Za Zhi 2022; 57:375-383. [PMID: 35359079 DOI: 10.3760/cma.j.cn112144-20220214-00059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objectives: To study the effects of Porphyromonas gingivalis (Pg) injected through tail vein on the molecular expression levels of biomarkers of neural stem cells (NSC) and neurons in the hippocampus of wild-type adult rats, and the effects on hippocampal neurogenesis. Methods: Eighteen male Sprague-Dawley (SD) rats were randomly divided into 3 groups based on the table of random numbers (n=6 in each group). In low-intensity group and high-intensity group, rats were injected intravenously through tail vein with 200 μl Pg ATCC33277 [1.0×103 and 1.0×108 colony forming unit (CFU), respectively] 3 times per week for 8 weeks. In the sham group, 200 μl of phosphate buffer saline (PBS) was given instead. Behavioral tests: the navigation and the exploration tests using Morris water maze (MWM) were applied to evaluate learning and memory ability of rats. Immunohistochemistry was performed to detect cells positively expressing nestin, doublecortin (DCX) and neuronal nuclei (NeuN) in the subgranular zone (SGZ) of rats in each group. Western blotting was used to evaluate the expression levels of nestin, DCX and NeuN in rat hippocampus. Results: Learning and memory abilities: on day 5 of navigation test, the lagency time was 22.83 (16.00, 38.34) s in the high-intensity group, significantly longer than the sham group [5.59 (5.41, 6.17) s] (t=-11.17, P<0.001). There were no significant differences between the low-intensity group [9.85 (8.75, 21.01) s] and the sham group (t=-6.83, P=0.080). Results in the exploration test showed that, in the high-intensity group, the number of fime crossing over the previous platform area within 60 s was 1.50 (1.00, 2.00), significantly less than the sham group [4.00 (2.75, 4.00)] (t=9.75, P=0.003); no significant differences between the low-intensity group [2.50 (2.00, 3.00)] and the sham one (t=4.50, P=0.382). Immunohistochemistry showed that the nestin+ cell density in the low-intensity group [(35.36±4.32) cell/mm2] and high-intensity group [(26.51±5.89) cell/mm2] were significantly lower than the sham group [(59.58±14.15) cell/mm2] (t=24.21, P=0.018; t=33.07, P=0.005); as for the mean absorbance of DCX+ cells, the low-intensity group (0.007±0.002) and the high-intensity group (0.006±0.002) were significantly lower than the sham group (0.011±0.001) (t=0.004, P=0.018; t=0.006, P=0.005); compared with the sham group [(1.13±0.14)×103 cell/mm2], the density of NeuN+ neurons in the high-intensity group [(0.75±0.08)×103 cell/mm2] was significantly reduced (t=0.38, P=0.017), and was not significantly changed in the low-intensity group [(0.88±0.19)×103 cell/mm2] (t=0.25, P=0.075). Western blotting results showed that, compared with the sham group, the expression levels of nestin, DCX, and NeuN were significantly reduced in the high-intensity group (t=0.74, P<0.001; t=0.18, P=0.014; t=0.35, P=0.008), but were not statistically changed in the low-intensity group (t=0.18, P=0.108; t=0.08, P=0.172; t=0.19, P=0.077). Conclusions: Pg injected through tail vein may reduce learning and memory abilities of wild-type rats, and may reduce the number of nestin, DCX, and NeuN-positive cells, and the protein expression levels of the above molecules in the hippocampus.
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Affiliation(s)
- J J Yu
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
| | - S Lei
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
| | - F L Li
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
| | - S S Chen
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
| | - X L Tang
- Department of Periodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang 110002, China
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Liu JJ, Fu SB, Jiang J, Tang XL. Association between outdoor particulate air pollution and the risk of osteoporosis: a systematic review and meta-analysis. Osteoporos Int 2021; 32:1911-1919. [PMID: 33954814 DOI: 10.1007/s00198-021-05961-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/13/2021] [Indexed: 11/25/2022]
Abstract
Air pollution is a major threat to global health, which is associated with several adverse health outcomes and increased mortality. Few studies have investigated the association between air pollution and osteoporosis, and their findings were inconclusive. Our objective is to determine whether exposure to outdoor air pollution is causally associated with risk of osteoporosis. A systematic literature search of PubMed, Web of Science, Embase, and Cochrane Library for publications up to December 2020 was conducted for studies reporting the association between air pollution and osteoporosis. Meta-analysis was performed to estimate the pooled effect size of air pollution on osteoporosis using the relative risk (RR) and 95% confidence intervals (95% CI). Quality assessment was conducted, and all statistical analyses were performed by RevMan 5.3 software. Our search identified 9 eligible studies involving 9,371,212 patients. Meta-analysis revealed that there was an increased risk of osteoporosis (total body BMD and hip fracture) as a result of exposure to air pollution including PM2.5 and NO2. However, no significant excess risk of osteoporosis was found regardless of PM10, NO, and O3. In spite of a few number of epidemiological studies selected in the present literature review, this study indicated that the increased exposure to air pollutants was positively associated with high risk of osteoporosis. Further cohort studies with large sample sizes are needed to investigate different constituents and the duration of exposure of air pollutants.
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Affiliation(s)
- J J Liu
- Department of Endocrinology, The First Hospital of Lanzhou University, No. 1 West Donggang Road, Lanzhou, Gansu, 730000, China
| | - S B Fu
- Department of Endocrinology, The First Hospital of Lanzhou University, No. 1 West Donggang Road, Lanzhou, Gansu, 730000, China
| | - J Jiang
- The First Clinical Medical College of Lanzhou University, No. 1 West Donggang Road, Lanzhou, Gansu, 730000, China
| | - X L Tang
- Department of Endocrinology, The First Hospital of Lanzhou University, No. 1 West Donggang Road, Lanzhou, Gansu, 730000, China.
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Liu H, Li HM, Liu JR, Yang HM, Xu H, Tang XL, Shen YL, Zhao YH, Zhao SY. [Clinical features and early diagnostic clues of chronic granulomatous disease]. Zhonghua Er Ke Za Zhi 2021; 59:777-781. [PMID: 34645219 DOI: 10.3760/cma.j.cn112140-20210426-00348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the early clinical clues for diagnosis of chronic granulomatous disease (CGD). Methods: One hundred and thirty-nine children with CGD seen in Beijing Children's Hospital from January 2007 to October 2020 were included in this study. The clinical features including age of onset, first presentations, reason for being hospitalized, etiology, imaging features, clues for early diagnosis of all patients were evaluated retrospectively. According to the time of diagnosis, the patients were divided into two groups, cases diagnosed before 2015 and after 2015 and 2015. The time of diagnosis, the length of stay and the hospital charges were compared between the two groups. T test and χ2 test were used for statistical analyses. Results: One hundred and nineteen of the cases were males and 20 were females. The age of onset was 4 months (8 d to 14 years), and 103 cases (74.1%) had onset before 1 year of age. The age at diagnosis was 1.8 years (21 d to 14.7 years), and the time of diagnosis delay was 1 year (7 d to 13.7 years). One hundred and thirty-five cases (97.1%) had pulmonary infection as the main reason for hospitalization, of whom 76 cases (56.3%) had positive pulmonary etiology. One hundred and thirty-six patients (97.8%) were referred cases, of whom 5 were suspected of CGD before referral, and the misdiagnosis rate was as high as 96.3% (131/136). Eight early clues for diagnosis were found, the frequency from high to low, large bacillus Callmette-Guer scar in 99 cases (70.5%), left axillary lymphadenopathy or calcification in 73 cases (52.5%), skin or other lymph node infections in 58 cases (41.7%), skin scars in 50 cases (36.0%), multiple lung nodules in 42 cases (30.2%), perianal abscess in 35 cases (25.2%), pulmonary Aspergillus infection in 26 cases (18.7%) and pulmonary Burkholderia infection in 15 cases (10.8%). A total of 120 cases of CGD were diagnosed by respiratory burst test during hospitalization, including 55 cases diagnosed before 2015 and 65 cases diagnosed after 2015. After using these 8 early diagnosis clues, the cases diagnosed after 2015 had shorter time of diagnosis and the length of stay and lower hospitalization charge than cases diagnosed before 2014, and the difference was statistically significant ((25±7) vs. (10±5) d, (29±7) vs. (18±6) d, (3.7×104±1.2×104) vs. (3.2×104±1.2×104) Yuan, t=13.763, 9.262, 2.381, all P<0.05). Conclusions: Patients with CGD are younger at onset and the diagnosis is delayed. Pulmonary infections are the most common. Large BCG scar, left axillary lymphadenopathy or calcification, skin or other lymph node infections, skin scars, multiple lung nodules, perianal abscesses, pulmonary Aspergillus infection and Burkholderia infection can help early diagnosis of CGD.
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Affiliation(s)
- H Liu
- Department No.2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - H M Li
- Department No.2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - J R Liu
- Department No.2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - H M Yang
- Department No.2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - H Xu
- Department No.2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X L Tang
- Department No.2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y L Shen
- Department No.2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y H Zhao
- Department No.2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - S Y Zhao
- Department No.2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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Ding XW, Zheng ZC, Zhao Q, Zhai G, Liang H, Wu X, Zhu ZG, Wang HJ, He QS, He XL, Du YA, Chen LC, Hua YW, Huang CM, Xue YW, Zhou Y, Zhou YB, Wu D, Fang XD, Dai YG, Zhang HW, Cao JQ, Li LP, Chai J, Tao KX, Li GL, Jie ZG, Ge J, Xu ZF, Zhang WB, Li QY, Zhao P, Ma ZQ, Yan ZL, Zheng GL, Yan Y, Tang XL, Zhou X. [A multi-center retrospective study of perioperative chemotherapy for gastric cancer based on real-world data]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:403-412. [PMID: 34000769 DOI: 10.3760/cma.j.cn.441530-20200111-00014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect of perioperative chemotherapy on the prognosis of gastric cancer patients under real-world condition. Methods: A retrospective cohort study was carried out. Real world data of gastric cancer patients receiving perioperative chemotherapy and surgery + adjuvant chemotherapy in 33 domestic hospitals from January 1, 2014 to January 31, 2016 were collected. Inclusion criteria: (1) gastric adenocarcinoma was confirmed by histopathology, and clinical stage was cT2-4aN0-3M0 (AJCC 8th edition); (2) D2 radical gastric cancer surgery was performed; (3) at least one cycle of neoadjuvant chemotherapy (NAC) was completed; (4) at least 4 cycles of adjuvant chemotherapy (AC) [SOX (S-1+oxaliplatin) or CapeOX (capecitabine + oxaliplatin)] were completed. Exclusion criteria: (1) complicated with other malignant tumors; (2) radiotherapy received; (3) patients with incomplete data. The enrolled patients who received neoadjuvant chemotherapy and adjuvant chemotherapy were included in the perioperative chemotherapy group, and those who received only postoperative adjuvant chemotherapy were included in the surgery + adjuvant chemotherapy group. Propensity score matching (PSM) method was used to control selection bias. The primary outcome were overall survival (OS) and progression-free survival (PFS) after PSM. OS was defined as the time from the first neoadjuvant chemotherapy (operation + adjuvant chemotherapy group: from the date of operation) to the last effective follow-up or death. PFS was defined as the time from the first neoadjuvant chemotherapy (operation + adjuvant chemotherapy group: from the date of operation) to the first imaging diagnosis of tumor progression or death. The Kaplan-Meier method was used to estimate the survival rate, and the Cox proportional hazards model was used to evaluate the independent effect of perioperative chemo therapy on OS and PFS. Results: 2 045 cases were included, including 1 293 cases in the surgery+adjuvant chemotherapy group and 752 cases in the perioperative chemotherapy group. After PSM, 492 pairs were included in the analysis. There were no statistically significant differences in gender, age, body mass index, tumor stage before treatment, and tumor location between the two groups (all P>0.05). Compared with the surgery + adjuvant chemotherapy group, patients in the perioperative chemotherapy group had higher proportion of total gastrectomy (χ(2)=40.526, P<0.001), smaller maximum tumor diameter (t=3.969, P<0.001), less number of metastatic lymph nodes (t=1.343, P<0.001), lower ratio of vessel invasion (χ(2)=11.897, P=0.001) and nerve invasion (χ(2)=12.338, P<0.001). In the perioperative chemotherapy group and surgery + adjuvant chemotherapy group, 24 cases (4.9%) and 17 cases (3.4%) developed postoperative complications, respectively, and no significant difference was found between two groups (χ(2)=0.815, P=0.367). The median OS of the perioperative chemotherapy group was longer than that of the surgery + adjuvant chemotherapy group (65 months vs. 45 months, HR: 0.74, 95% CI: 0.62-0.89, P=0.001); the median PFS of the perioperative chemotherapy group was also longer than that of the surgery+adjuvant chemotherapy group (56 months vs. 36 months, HR=0.72, 95% CI:0.61-0.85, P<0.001). The forest plot results of subgroup analysis showed that both men and women could benefit from perioperative chemotherapy (all P<0.05); patients over 45 years of age (P<0.05) and with normal body mass (P<0.01) could benefit significantly; patients with cTNM stage II and III presented a trend of benefit or could benefit significantly (P<0.05); patients with signet ring cell carcinoma benefited little (P>0.05); tumors in the gastric body and gastric antrum benefited more significantly (P<0.05). Conclusion: Perioperative chemotherapy can improve the prognosis of gastric cancer patients.
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Affiliation(s)
- X W Ding
- Department of Gastric surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer Prevention and Therapy, Tianjin 300060, China
| | - Z C Zheng
- Department of Gastric Surgery, Cancer Hospital of China Medical University (Liaoning Cancer Hospital and Institute), Shenyang 110042, China
| | - Q Zhao
- The Third Department of Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - G Zhai
- Department of General Surgery, Shanxi Provincial Tumor Hospital, Taiyuan 030013, China
| | - H Liang
- Department of Gastric surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer Prevention and Therapy, Tianjin 300060, China
| | - X Wu
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Z G Zhu
- Department of Surgery, Ruijin Hospital, Shanghai JiaoTong University School of Medicine, Shanghai Institute of Digestive Surgery, Shanghai Key Laboratory of Gastric Neoplasms, Shanghai 200025, China
| | - H J Wang
- Department of Gastrointestinal Surgery, Affiliated Tumor Hospital, Xinjiang Medical University, Urumqi 830011, China
| | - Q S He
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - X L He
- Department of General Surgery, Tangdu Hospital, The Air Force Medical University, Xi'an 710038, China
| | - Y A Du
- Department of Gastric Surgery, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - L C Chen
- Department of Gastrointestinal Surgery, Fujian Provincial Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou 350014, China
| | - Y W Hua
- Department of General Surgery, The Affiliated Tumor Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - C M Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou 350004, China
| | - Y W Xue
- Department of Gastrointestinal Surgery, Harbin Medical University Cancer Hospital, Harbin 150081, China
| | - Y Zhou
- Department of Gastic Surgery, Afiliated CancerHospital, Fudan University, Shanghai 200030, China
| | - Y B Zhou
- Department of Gastrointestinal Surgery, Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - D Wu
- Department of Gastrointestinal Surgery, Second Affiliated Hospital, Zhejiang University, Hangzhou 310009, China
| | - X D Fang
- Department of Gastrointestinal Colorectal And Anal Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - Y G Dai
- Department of Gastrointestinal Surgery, Yunnan Cancer Hospital, Kunming 650118, China
| | - H W Zhang
- Diagnosis and Treatment Center of Digestive Disease, Wuxi Mingci cardiovascular Hospital, Wuxi 214101, China
| | - J Q Cao
- Department of Gastrointestinal Surgery, Second Affiliated Hospital, Nanchang University, Nanchang 330006, China
| | - L P Li
- Department of Gastrointestinal Surgery, The Affiliated Provincial Hospital, Shandong First Medical University, Jinan 250021, China
| | - J Chai
- Department of Gastric Surgery, The Affiliated Shandong Tumor Hospital, Shandong University, Jinan 250117, China
| | - K X Tao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - G L Li
- Department of General Surgery, Jinling Hospital/General Hospital of Eastern Theater Command, School of Medicine, Nanjing University, Nanjing 210002, China
| | - Z G Jie
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - J Ge
- Department of Gastrointestinal Surgery Xiangya Hospital of Central South University, Changsha 410008, China
| | - Z F Xu
- Department of General Surgery, The Affiliated Hospital, Shandong Academy of Medical Sciences, Jinan 250031, China
| | - W B Zhang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Q Y Li
- Departerment of Abdominal Surgery, Jiangxi Cancer Hospital, Nanchang 330029, China
| | - P Zhao
- Departerment of Gastrointestinal Surgery, Sichuan Tumor Hospital, Chengdu 610041, China
| | - Z Q Ma
- Department of General Surgery, Peking Uninon Medical College (PUMC) Hospital, Chinese Academy of Medical Sciences (CAMS) and PUMC, Beijing 100730, China
| | - Z L Yan
- Department of Gastrointestinal Surgery, Ningbo First Hospital, Ningbo 315000, China
| | - G L Zheng
- Department of Gastric surgery, Tianjin Medical University Cancer Institute & Hospital, National Clinical Research Center for Cancer Prevention and Therapy, Tianjin 300060, China
| | - Y Yan
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - X L Tang
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan 250012, China
| | - X Zhou
- The Third Department of Surgery, The Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
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Yang C, Chen N, Tang XL, Qian XH, Cai CP. Immunomodulatory effects of IL-33 and IL-25 in an ovalbumin-induced allergic rhinitis mouse model. J BIOL REG HOMEOS AG 2021; 35:571-581. [PMID: 33738997 DOI: 10.23812/20-615-a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Both interleukin (IL)-33 and IL-25 induce Th2-type cytokine production by various cell types, suggesting that they may contribute to development of allergic disorders, however, the immunomodulatory effects of IL-33 and IL-25 in ovalbumin (OVA)-induced allergic rhinitis (AR) remain unclear. In the present study, anti-IL-33 and anti-IL-25 Abs were administrated intranasally during rechallenge in OVA-induced AR. Immunomodulatory effects were evaluated by measuring nasal rubbing, sneezing occurrence, serum OVA-specific antibodies, Th2 immune responses, neutrophil, eosinophil and mast cell recruitment into the nasal mucosa. We found that treatment with anti-IL-33 Ab markedly reduced nasal rubbing, sneezing events, Th2 immune responses, serum OVA-specific IgE and IgG1 levels, mucosal neutrophil, eosinophil and mast cell infiltration. In contrast, the effect of IL-25 antagonism was limited to attenuating the Th2 immune responses, and neutrophil and eosinophil infiltration. These observations indicate that IL-33 and IL-25 play a pathogenic role in an established AR mouse model, with a greater contribution of IL-33 than IL-25. Our findings suggest that IL-33 neutralization may be a potential approach for treatment of AR.
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Affiliation(s)
- C Yang
- Department of Otolaryngology & Head and Neck Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Huangpu District, Shanghai, China
| | - N Chen
- Department of Otolaryngology & Head and Neck Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Huangpu District, Shanghai, China
| | - X L Tang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Xuhui District, Shanghai, China
| | - X H Qian
- School of Biomedical Engineering, Shanghai Jiao Tong University, Xuhui District, Shanghai, China
| | - C P Cai
- Department of Otolaryngology & Head and Neck Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Huangpu District, Shanghai, China
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Shen YL, Chen QH, Tang XL, Xu H, Li HM, Zhao SY. [Clinical features of cystic fibrosis associated allergic bronchopulmonary aspergillosis in children]. Zhonghua Er Ke Za Zhi 2020; 58:646-652. [PMID: 32842385 DOI: 10.3760/cma.j.cn112140-20200426-00435] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To analyze the clinical features of cystic fibrosis (CF) associated allergic bronchopulmonary aspergillosis (ABPA) in children. Methods: A retrospective study was performed in 22 children who were diagnosed with CF associated ABPA in Beijing Children's Hospital affiliated to Capital Medical University from March 2010 to March 2020. The clinical features, imaging characteristics, laboratory results and the prognosis were reviewed. Results: A total of 22 cases met the diagnostic criterion, including 12 males and 10 females. The age of diagnosis was (10.4±2.8) years and the age of onset was (5.5±4.4) years. Clinical manifestations included cough and expectoration (22 cases), recurrent wheezing (15 cases), hemoptysis (7 cases), failure to thrive (12 cases), pancreatitis (10 cases), hepatomegaly (7 cases), splenomegaly (4 cases) and steatorrhea (4 cases). CT scans of all the patients showed pulmonary infiltrates and central bronchiectasis, combined with mucoid impaction in 17 cases and high density mucus plug in 12 cases. Eosinophilia was found in 18 patients. Total IgE and serum levels of A. fumigatus-specific IgE were elevated in all 22 patients. Positive culture of sputum or bronchoalvedar lauage fluid for fungus were in 15 cases, with single Aspergillus infection in 8 cases and mixed Aspergillus infection in 3 cases. The predominant bacteria found in the airways were Pseudomonas aeruginosa (17 cases), followed by staphylococcas. aureus (6 cases) and stenotrophomonas. maltophilia (5 cases). Pulmonary function revealed obstructive ventilation dysfunction in 4 cases, mixed dysfunction in 11 cases, and small airway dysfunction in 4 cases. Regarding the treatment, 3 were treated only with systemic corticosteroid, while the remaining 19 cases also received antifungal agents.The follow up continued for 1-7 years, and 6 maintained remission, 10 had recurrent episodes, 1 died, and 5 lost to follow up. Conclusions: CF associated ABPA is extremely rare in China. The overlapping clinical, radiographic, and immunologic features of these two diseases make the diagnosis challenging. Systemic corticosteroids are considered the first-line therapy for these patients, and adjuvant antifungal agents may be helpful. Recurrence rate in our center is high.
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Affiliation(s)
- Y L Shen
- Department No. 2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Q H Chen
- Department No. 2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X L Tang
- Department No. 2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - H Xu
- Department No. 2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - H M Li
- Department No. 2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - S Y Zhao
- Department No. 2 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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11
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Ke RD, Tang AZ, Tang XL, Gong L, Fang Q, Tan SH. [Clinical application of HRCT three-dimensional reconstruction in traumatic ossicular chain interruption]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 33:1129-1133. [PMID: 31914258 DOI: 10.13201/j.issn.1001-1781.2019.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the clinical value of HRCT three-dimensional reconstruction technique in traumatic auditory chain traumatic fracture. Method:The clinical data of 14 patients with traumatic ear ossicular chain interruption were analyzed retrospectively. To evaluate the injury site and degree of the auditory chain before surgery, all the 14 patients underwent,HRCT scanning and three-dimensional reconstruction. The reconstructed auditory chain was observed from multiple angles and compared with the surgical exploration results under microscope. Result:The coincidence rate between ossicular chain injury observed by temporal bone HRCT scan before operation and ossicular chain injury observed during surgery was only 28.57%, the coincidence rate between ossicular chain injury observed during surgery and ossicular chain injury observed by three-dimensional reconstruction is 85.71%.Therefore, three-dimensional reconstruction imaging technique could give the doctor more clearly and stereoscopic images for the destruction of ossicular chain. Conclusion:Preoperative three-dimensional reconstruction can display and diagnosis of auditory ossicular chain destruction more clearly. It can be used to accurately evaluate auditory ossicular chain pathological changes, to develop individualized surgical plans and assess the risk of surgery.
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Affiliation(s)
- R D Ke
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
| | - A Z Tang
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
| | - X L Tang
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
| | - L Gong
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
| | - Q Fang
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
| | - S H Tan
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
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Tang XL, Yang HM, Liu H, Xu H, Zhou CJ, Li HM, Zhao SY, Liu JR. [Clinical analysis of methylmalonic acidemia and hyperhomocysteinemia with diffuse lung disease as an initial or main presentation]. Zhonghua Er Ke Za Zhi 2019; 57:620-624. [PMID: 31352748 DOI: 10.3760/cma.j.issn.0578-1310.2019.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To improve the awareness of methylmalonic acidemia and hyperhomocysteinemia with diffuse lung disease as an initial or main presentation. Methods: A retrospective analysis of the clinical manifestations, radiological features, laboratory tests, genetic variations, treatments and prognoses was conducted in six children presented with diffuse lung disease and finally diagnosed with methylmalonic acidemia and hyperhomocysteinemia in Ward 2 of Department of Respiratory Diseases, Beijing Children's Hospital, from August 2017 to November 2018. Results: Six children were included in this study. Two children were male and four were female. The average age of onset was 28 months. The mean age at diagnosis was 34 months. The average interval from onset to diagnosis was 6 months. Four children who underwent genetic tests were found to have variants of gene MMACHC and diagnosed with CblC type. All children had respiratory symptoms and signs as initial or main presentation, which were tachypnea (5 cases), exercise intolerance (5 cases), cough (4 cases), cyanosis (4 cases), clubbing (4 cases), dyspnea (3 cases) and retractions (3 cases). Pulmonary arterial hypertension was found in all six children. Pericardial effusion (4 cases), kidney involvement (3 cases), nervous system involvement (3 cases), gastrointestinal system involvement (3 cases) and anemia (2 cases) also coexisted. The high resolution computed tomography (HRCT) features included dilated pulmonary artery (6 cases), ground-glass opacities (4 cases), diffuse poorly defined ground-glass centrilobular nodules (3 cases), pleural effusion (3 cases), thickening of interlobular septum (2 cases), etc. All children had an elevated concentration of methylmalonic acid in urine and homocysteine in plasma. Genetic tests were performed in four patients, and MMACHC genetic mutations were found in all of them. Clinical manifestations, HRCT features and pulmonary arterial hypertension turned better in five children after treatment. One patient who was not regularly followed-up died. Conclusions: Pulmonary involvement including diffuse lung disease and pulmonary arterial hypertension could coexist with methylmalonic acidemia and hyperhomocysteinemia, which may have respiratory symptoms and signs as the initial or main presentation. Characteristic HRCT features were found in some patients. Plasma homocysteine test is a quick method for screening the disease in children with diffuse lung disease and (or) pulmonary arterial hypertension. Both diffuse lung disease and pulmonary arterial hypertension may turn better after treatment.
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Affiliation(s)
- X L Tang
- Ward 2 of Department of Respiratory Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - H M Yang
- Ward 2 of Department of Respiratory Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - H Liu
- Ward 2 of Department of Respiratory Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - H Xu
- Ward 2 of Department of Respiratory Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - C J Zhou
- Department of Pathology, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - H M Li
- Ward 2 of Department of Respiratory Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - S Y Zhao
- Ward 2 of Department of Respiratory Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - J R Liu
- Ward 2 of Department of Respiratory Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
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Wang X, Jin QJ, Jin QL, Sun W, Zhou YQ, Tang XL, Yin H. [A study on the pedigree of the academic inheritance of Li Shicai]. Zhonghua Yi Shi Za Zhi 2019; 49:55-60. [PMID: 30970426 DOI: 10.3760/cma.j.issn.0255-7053.2019.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Li Shicai, a famous physician of Ming Dynasty had a large number of students. Shen Langzhong, who was a student of Li Shicai, was the teacher of Ma Yuanyi, and one of Ma's student was You Zaijing. This inheritance pedigree was called "Li Shicai School" in academic communities. There were little of study on its later physicians after You Zaijing. This paper collated the medical works, genealogy, local chronicles and medical records of Li Shicai and doctors of different generations. We clarified the academic inheritance genealogy of the past four hundred years. Up to now, there have been twelve generations totally.
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Affiliation(s)
- X Wang
- The First School of Clinical Medicine, Nanjing University of Chinese Medicine, Nanjing 210023, China; Shicai School Inherited Studio, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou 215101, China
| | - Q J Jin
- Shicai School Inherited Studio, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou 215101, China
| | - Q L Jin
- Shicai School Inherited Studio, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou 215101, China
| | - W Sun
- Nephrology Department, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing 210029, China
| | - Y Q Zhou
- Shicai School Inherited Studio, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou 215101, China
| | - X L Tang
- Shicai School Inherited Studio, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou 215101, China
| | - H Yin
- Shicai School Inherited Studio, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou 215101, China
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Liu L, Qi B, Li XH, Yang Y, Yu Z, Xu N, Tang XL, Bai XY, Wang SM, Chen HY, Zhao DQ. Purification and identification of a novel protein isolated from Panax quinquefolium and evaluation of its In vitro antioxidant properties. World J Tradit Chin Med 2019. [DOI: 10.4103/wjtcm.wjtcm_20_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Gong L, Tang XL, Liu YK, Liu YL, Zhou WW, Xia W, Tang AZ. [Research on the factors affecting the postoperative outcome of otosclerosis]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:1922-1926. [PMID: 30550142 DOI: 10.13201/j.issn.1001-1781.2018.24.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Indexed: 11/12/2022]
Abstract
Summary Otosclerosis is not often seen in the clinic, but it can seriously affect the quality of life due to the hearing loss of patients. Currently, the treatment of otosclerosis is mainly surgery. With the development of microsurgical techniques, the treatment of surgery for otosclerosis has been highly praised and widely carried out. However, different surgical methods, assistive techniques and instruments used during surgery, selected placement of prostheses, and varying levels of experience of the surgeon can all affect postoperative outcomes. In order to provide reference for the surgical treatment of otosclerosis in the future,this paper will summarize the factors related to postoperative efficacy of stapes surgery for otosclerosis.
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Yuan C, Qu ZL, Tang XL, Liu Q, Luo W, Huang C, Pan Q, Zhang XL. Mycobacterium tuberculosis Mannose-Capped Lipoarabinomannan Induces IL-10-Producing B Cells and Hinders CD4 +Th1 Immunity. iScience 2018; 11:13-30. [PMID: 30572206 PMCID: PMC6299163 DOI: 10.1016/j.isci.2018.11.039] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 11/08/2018] [Accepted: 11/28/2018] [Indexed: 12/26/2022] Open
Abstract
The importance of Th1/interferon (IFN)-γ-mediated responses in mycobacterial infection has been well established. However, little is known about B cell-mediated immunity during Mycobacterium tuberculosis (Mtb) infection. Interleukin (IL)-10-producing B cells (B10 cells), a subset of B regulatory cells (Bregs), are implicated in modulating the immune response. Herein, we found that B10 cells were significantly increased in patients with tuberculosis. Furthermore, mannose-capped lipoarabinomannan (ManLAM), a major surface lipoglycan component from Mtb, induced a significant increase in B10 cells, which enriched in CD5+ B1a B cells. ManLAM induced IL-10 production mainly by activating MyD88/PI3K/AKT/Ap-1 and K63-linked ubiquitination of NF-κB essential modulator/nuclear factor kappa-light-chain-enhancer of activated B cells signaling pathways in B cells via Toll-like receptor 2. IL-10 production by ManLAM-treated B cells further inhibited CD4+ Th1 polarization, leading to increased susceptibility to mycobacterial infection compared with ManLAM-treated IL-10−/− B group. Thus, we report a new immunoregulation mechanism in which Mtb ManLAM-induced B10 cells negatively regulate host anti-TB cellular immunity. Mtb mannose-capped lipoarabinomannan (ManLAM) induces IL-10 production in B cells ManLAM-induced B10 cells enrich in CD5+ B1a B cells ManLAM binding with TLR2 triggers MyD88 signaling pathways of B cells ManLAM-induced B10 cells hinder CD4+Th1 immunity during Mtb infection in mice
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Affiliation(s)
- Chunhui Yuan
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Basic Medical Sciences, Wuchang, Wuhan 430071, China; Department of Laboratory Medicine, Wuhan Children's Hospital, Huazhong University of Science and Technology, Jiangan, Wuhan 430015, China
| | - Zi-Lu Qu
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Basic Medical Sciences, Wuchang, Wuhan 430071, China
| | - Xiao-Lei Tang
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Basic Medical Sciences, Wuchang, Wuhan 430071, China
| | - Qi Liu
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Basic Medical Sciences, Wuchang, Wuhan 430071, China
| | - Wei Luo
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Basic Medical Sciences, Wuchang, Wuhan 430071, China
| | - Chun Huang
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Basic Medical Sciences, Wuchang, Wuhan 430071, China
| | - Qin Pan
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Basic Medical Sciences, Wuchang, Wuhan 430071, China.
| | - Xiao-Lian Zhang
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Basic Medical Sciences, Wuchang, Wuhan 430071, China.
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Tang XL, Li Y, Jia LF, Yuan W. [MicroRNA and sensorineural hearing loss]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:1523-1526. [PMID: 30550205 DOI: 10.13201/j.issn.1001-1781.2018.19.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Indexed: 11/12/2022]
Abstract
Hearing loss caused by disorders throughout the cochlea or auditory pathway called sensorineural hearing loss. The etiology of sensorineural deafness is complex and diverse, and the sensory epithelial cell damage of the inner ear spiral is the main pathological change. MicroRNAs play a role in the regulation of gene expression by inhibiting or degrading the mRNA of target genes. More and more studies have shown that microRNA plays an important role in the development of sensorineural deafness. This article will review the process of microRNA involvement in the development of sensorineural hearing loss.
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Han F, Liu H, Tang XL. [Langerhans cell histiocytosis with spontaneous pneumothorax as the first symptom]. Zhonghua Er Ke Za Zhi 2018; 56:383-384. [PMID: 29783829 DOI: 10.3760/cma.j.issn.0578-1310.2018.05.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Liu JR, Lu J, Dong F, Li HM, Liu H, Tang XL, Guo YL, Zhao SY. Low Bacterial Co-infection Invalidates the Early Use of Non-anti- Mycoplasma pneumoniae Antibiotics in Pediatric Refractory Mycoplasma pneumoniae Pneumonia Patients. Front Pediatr 2018; 6:296. [PMID: 30416990 PMCID: PMC6212475 DOI: 10.3389/fped.2018.00296] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Accepted: 09/21/2018] [Indexed: 12/18/2022] Open
Abstract
Background: Childhood refractory mycoplasma pneumoniae (MP) pneumonia (RMPP) is a lung disease with elevated level of C-reactive protein and severe clinical and radiological deterioration. Whether bacterial co-infection contributes to disease of RMPP and whether inclusion of non-anti-MP antibiotics in treatment regimen would benefit RMPP patients remains elusive. Methods: We retrospectively reviewed the medical records of 675 RMPP children. Traditional bacterial culture and next generation sequencing (NGS) were used to detect bacteria in bronchoalveolar lavage fluid in all the 675 patients and 18 patients respectively. Antibiotics used and clinical outcomes were analyzed along with other clinical measurements. Results: Positive bacterial cultures were only found in 18 out of 675 cases (2.67%) and NGS analyses of another 18 cases did not revealed positive bacterial infection, which were consistent with the results of bacterial cultures. Non-anti-MP antibiotics were utilized in 630 cases (93.33%), even last-line antibiotics, such as glycopeptides or carbapenems, were frequently used. Conclusion: Bacterial co-infection in RMPP was rare and non-anti-MP antibiotics didn't show any efficacy for early treatment of RMPP patients, which may provide a rationale for restricting the use of non-anti-MP antibiotics in RMPP patients and preventing antibiotic resistance globally.
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Affiliation(s)
- Jin-Rong Liu
- Department 2 of Respiratory Medicine, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Jie Lu
- Key Laboratory of Major Diseases in Children, Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China.,Biobank for Clinical Data and Samples in Pediatric, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Fang Dong
- Department of Laboratory Medicine, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Hui-Min Li
- Department 2 of Respiratory Medicine, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Hui Liu
- Department 2 of Respiratory Medicine, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Xiao-Lei Tang
- Department 2 of Respiratory Medicine, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Yong-Li Guo
- Key Laboratory of Major Diseases in Children, Beijing Key Laboratory for Pediatric Diseases of Otolaryngology, Head and Neck Surgery, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China.,Biobank for Clinical Data and Samples in Pediatric, National Center for Children's Health, Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, Beijing, China
| | - Shun-Ying Zhao
- Department 2 of Respiratory Medicine, National Center for Children's Health, Beijing Children's Hospital, Capital Medical University, Beijing, China
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Tang XL, Sun Z, Gong L. Chromium supplementation in women with polycystic ovary syndrome: Systematic review and meta-analysis. J Obstet Gynaecol Res 2017; 44:134-143. [PMID: 28929602 DOI: 10.1111/jog.13462] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/20/2017] [Accepted: 07/09/2017] [Indexed: 01/20/2023]
Abstract
AIM Increasing evidence has suggested that chromium supplementation may improve the clinical symptoms of polycystic ovary syndrome (PCOS), yet the results have been inconsistent. To derive a more precise estimation of the efficacy of chromium, a meta-analysis was performed. METHODS Studies published in PubMed, EMBASE and the Cochrane Library up to April 2017 were retrieved. Standardized mean differences (SMD) with 95%CI were calculated for net changes using random-effects or fixed-effects models. RESULTS A total of six randomized clinical trials (RCT) with 351 PCOS women were ultimately collected in this meta-analysis. All included RCT were of moderate-high quality. On pooled analysis, insulin resistance was significantly decreased (SMD, -0.84; 95%CI: -1.30 to -0.38; P = 0.0004), while the total testosterone (SMD, 0.36; 95%CI: 0.07-0.65; P = 0.02) and free testosterone (SMD, 0.80; 95%CI: 0.48-1.12; P < 0.00001) were markedly increased in chromium-treated PCOS patients compared with control groups. No significant difference was found in other indexes of insulin metabolism (body mass index, fasting insulin, fasting blood sugar and quantitative insulin sensitivity check index), hormone status (luteinizing hormone, follicle-stimulating hormone and prolactin) and lipid profiles (cholesterol and triglycerides) between the two groups. CONCLUSION Supplementation with chromium may not have significant benefits for women with PCOS. More RCT with low heterogeneity, however, are required to corroborate the present findings.
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Affiliation(s)
- Xiao-Lei Tang
- Taishan Medical College, Taian, Shandong Province, China
| | - Zheng Sun
- Taishan Medical College, Taian, Shandong Province, China
| | - Lei Gong
- Affiliated Yantai Yuhuangding Hospital of Qingdao University, Yantai, Shandong Province, China
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Liu H, Tang XL, Liu JR, Li HM, Zhao SY. [Clinical and genetic analysis for activated PI3K-δ syndrome by PIK3CD gene mutation]. Zhonghua Er Ke Za Zhi 2017; 54:698-702. [PMID: 27596086 DOI: 10.3760/cma.j.issn.0578-1310.2016.09.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To analyze clinical and genetic features of activated PI3K-δ syndrome (APDS), a new form of immunodeficiency disease caused by PIK3CD gene mutation. METHOD Data of two patients diagnosed as APDS at Second Department of Respiratory Medicine of Beijing Children's Hospital Affiliated to Capital Medical University in 2015 were retrospectively reviewed. Pathogenetic genes were screened by whole exome sequencing, and identified by first generation sequencing. The identified pathogenetic genes were further verified in patients' parents. Then the gene sequencing results were analyzed. RESULT Both patients were females, aged 2 years and 4 months and 5 years respectively. The main clinical features of both cases were recurrent respiratory infections, enlargement of lymph node, hepatosplenomegaly, cytomegalovirus (CMV) or Epstein-Barr virus (EBV) viremia, decreased number of native CD4(+) T cell, inverted CD4(+) /CD8(+) T cell ratio and increased IgM. Patient 1 has decreased IgA and IgG. Patient 2 showed wide follicular hyperplasia of the airway mucosa. Both patients had de novo mutation in c. 3061G>A(E1021K)of PIK3CD gene, which was homozygous in patient 1 and heterozygous in patient 2. Both were treated with 500 mg/kg dose of gamma globulin intravenously at 4-weeks interval. Patient 1 started oral rapamycin therapy at the dose of 1 mg/(m(2)·d) and discontinued the treatment after 2 weeks. Patient 2 was given low dose of oral prednisone. The two patients were followed up for 2 months. The number of respiratory infection in both patients was decreased. Hepatosplenomegaly was subsided, while respiratory tract damage was not improved in patient 2. CONCLUSION The clinical manifestations of APDS include recurrent respiratory tract infection, enlargement of lymph nodes, hepatosplenomegaly, and CMV or EBV infection. The immunophenotype is decreased native CD4(+) T cell, inverted CD4(+) /CD8(+) T cell ratio, increased IgM and decreased IgA/IgG for some patients. c. 3061G>A(E1021K)of PIK3CD gene is a common de novo mutation in APDS patients.
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Affiliation(s)
- H Liu
- Second Department of Respiratory Medicine, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing 100045, China
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Tang XL, Ding BX, Hua Y, Chen H, Wu T, Chen ZQ, Yuan CH. HOXC10 Promotes the Metastasis of Human Lung Adenocarcinoma and Indicates Poor Survival Outcome. Front Physiol 2017; 8:557. [PMID: 28824453 PMCID: PMC5539290 DOI: 10.3389/fphys.2017.00557] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 07/17/2017] [Indexed: 12/30/2022] Open
Abstract
Background: As master regulator of embryonic morphogenesis, homeodomain-containing gene 10 (HOXC10) has been found to promote progression of human cancers and indicates poor survival outcome. However, the role of HOXC10 in lung adenocarcinoma still unclear. Methods: HOXC10 expression was evaluated in 63 primary lung adenocarcinoma tissues from our local hospital, and further systematically confirmed in lung cancer tissues from six GEO datasets (GSE19188, GSE31210, GSE10072, GSE7670, GSE32863, GSE30219), and Kaplan-Meier plotter database. The role of HOXC10 in lung cancer metastasis was further validated by cellular and molecular studies. Results: The expression of HOXC10 was significantly increased in human lung adenocarcinoma samples from Wuhu No.2 People's Hospital, about 4.219 times compared with normal tissues, and significantly correlated with TNM stage, lymph node, and distal metastasis. Upregulation of HOXC10 indicated a poor overall/relapse free survival of lung cancer patients from Wuhu No.2 People's Hospital, GEO datasets, and Kaplan-Meier plotter database, especially in patients with lung adenocarcinoma. Knockdown or ectopic expression assays confirmed that HOXC10 enhanced the phosphorylation of PI3K, regulated the expression of epithelial-to-mesenchymal transition (EMT) markers: MMP2/9, VCAM-1, vimentin and E-cadherin. Cellular study further confirmed that HOXC10 was required for migration, invasion and adhesion of lung cancer cells. Conclusion: These findings suggest that HOXC10 plays a pivotal role in the metastasis of human lung cancer and highlight its usefulness as a potential prognostic marker or therapeutic target in human lung adenocarcinoma.
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Affiliation(s)
- Xiao-Lei Tang
- Department of Laboratory and Nuclear Medicine, People's HospitalAnhui, China
| | - Bang-Xian Ding
- Department of Laboratory Medicine, Wuhan Children's Hospital, Huazhong University of Science and TechnologyWuhan, China
| | - Ying Hua
- Chemical and Biological Engineer, Vocational and Technical College of FuyangAnhui, China
| | - Hao Chen
- Department of Pathology, Zhongnan Hospital of Wuhan UniversityWuhan, China
| | - Tao Wu
- Department of Laboratory and Nuclear Medicine, People's HospitalAnhui, China
| | - Zhang-Quan Chen
- Key Laboratory for Medical Molecular Diagnostic of Guangdong Province, Guangdong Medical UniversityDongguan, China
| | - Chun-Hui Yuan
- Department of Laboratory Medicine, Wuhan Children's Hospital, Huazhong University of Science and TechnologyWuhan, China
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Li XT, Wang Y, Lu SS, Li M, Men SK, Bai YC, Tang XL, Chen Q. The Cold Hardiness of Phrynocephalus erythrurus, the Lizard Living at Highest Altitude in the World. Cryo Letters 2017; 38:216-227. [PMID: 28767745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
BACKGROUND Phrynocephalus erythrurus living at Qinghai-Tibet Plateau, is believed to be the highest lizard in the world, but we know little about how these lizards cope with very low temperatures in winter. OBJECTIVE The aim of this study was to find the difference of the lizards before and after cold acclimatization. MATERIALS AND METHODS In this study the limit of supercooling and inoculative freezing, the concentration of four organic osmolytes, and the activity of lactate dehydrogenase in the plasma were measured in samples shortly after capture and in other samples after 7~8 weeks of acclimatization at 2~4 degree C. RESULTS Animals acquired an ability to undergo deeper supercooling and inoculative freezing through the course of acclimatization. We find no regular changes of the four organic osmolytes after the acclimatization. CONCLUSION We think that this species of lizard is partly freeze-tolerant and conclude that it uses supercooling to survive in winter.
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Affiliation(s)
- X T Li
- School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Y Wang
- School of Life Sciences, Lanzhou University, Lanzhou, China
| | - S S Lu
- School of Life Sciences, Lanzhou University, Lanzhou, China
| | - M Li
- School of Life Sciences, Lanzhou University, Lanzhou, China
| | - S K Men
- School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Y C Bai
- School of Life Sciences, Lanzhou University, Lanzhou, China
| | - X L Tang
- School of Life Sciences, Lanzhou University, Lanzhou, China
| | - Q Chen
- School of Life Sciences, Lanzhou University, Lanzhou, China.
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Sun X, Pan Q, Yuan C, Wang Q, Tang XL, Ding K, Zhou X, Zhang XL. A Single ssDNA Aptamer Binding to Mannose-Capped Lipoarabinomannan of Bacillus Calmette-Guérin Enhances Immunoprotective Effect against Tuberculosis. J Am Chem Soc 2016; 138:11680-9. [PMID: 27529508 DOI: 10.1021/jacs.6b05357] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Because Mycobacterium bovis, termed bacillus Calmette-Guérin (BCG), the only available used tuberculosis (TB) vaccine, retains immunomodulatory properties that limit its protective immunogenicity, there are continuous efforts to identify the immunosuppression mechanism as well as new strategies for improving the immunogenicity of BCG. Here, an ssDNA aptamer "antibody" BM2 specifically bound to the mannose-capped lipoarabinomannan (ManLAM) of BCG was selected. BM2 significantly blocked ManLAM-mannose receptor (MR) binding, triggered ManLAM-CD44 signaling, and enhanced M1 macrophage and Th1 activation via cellular surface CD44 in vitro and in vivo. BM2 enhanced immunoprotective effects of BCG against virulent Mycobacterium tuberculosis H37Rv infection in mice and monkeys models. Thus, we report a new mechanism of the interaction between ManLAM and CD44 on macrophages and CD4(+) T cells and reveal that ManLAM-binding membrane molecule CD44 is a novel target for the enhancement of BCG immunogenicity, and BM2 has strong potential as an immune enhancer for BCG.
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Affiliation(s)
- Xiaoming Sun
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Medicine , Wuhan 430071, P. R. China
| | - Qin Pan
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Medicine , Wuhan 430071, P. R. China
| | - Chunhui Yuan
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Medicine , Wuhan 430071, P. R. China
| | - Qilong Wang
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Medicine , Wuhan 430071, P. R. China.,Department of Clinical Oncology, Huai'an First People's Hospital, Nanjing Medical University , Huai'an 223300, China
| | - Xiao-Lei Tang
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Medicine , Wuhan 430071, P. R. China.,Department of Clinical Laboratory, The Second Hospital of Wuhu , Wuhu 241000, Anhui Province, China
| | - Kan Ding
- Shanghai Institute of Materia Medica , Shanghai 201203, China
| | - Xiang Zhou
- College of Chemistry and Molecular Sciences, Wuhan University , Wuhan 430072, Hubei Province, China
| | - Xiao-Lian Zhang
- State Key Laboratory of Virology and Medical Research Institute, Hubei Province Key Laboratory of Allergy and Immunology and Department of Immunology, Wuhan University School of Medicine , Wuhan 430071, P. R. China
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Yao ZX, Tang AZ, Xie M, He GY, Tang XL. [Current diagnosis and treatment of pseudoaneurysms of the internal carotid artery in postirradiated nasopharyngeal carcinoma]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2016; 30:919-921. [PMID: 29797944 DOI: 10.13201/j.issn.1001-1781.2016.11.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Indexed: 11/12/2022]
Abstract
Nasopharyngeal carcinoma is one of the most common of head and neck malignant tumors in southern region of China. Till date radiotherapy is considered as the first choice of treatment this disease.Although the rate of occurrence of pseudoaneurysms of the internal carotid artery in post radiation treatment of nasopharyngeal carcinoma is low, it is also a hot topic in department of otolaryngology and doctors because of its dangerous and lifethreatening emergencies.In order to improve the level of diagnosis and treatment of the disease, diagnosis, risk, treatment, prognosis and prevention are current summarized in this report.
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Chen M, Liu XH, Tang XL. [Methamphetamine-associated cardiomyopathy: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:352-353. [PMID: 27112617 DOI: 10.3760/cma.j.issn.0253-3758.2016.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
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Tang XL, Wu SM, Xie Y, Song N, Guan Q, Yuan C, Zhou X, Zhang XL. Generation and application of ssDNA aptamers against glycolipid antigen ManLAM of Mycobacterium tuberculosis for TB diagnosis. J Infect 2016; 72:573-86. [PMID: 26850356 DOI: 10.1016/j.jinf.2016.01.014] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 12/20/2015] [Accepted: 01/14/2016] [Indexed: 01/01/2023]
Abstract
The development of effective Mycobacterial antigen diagnostic reagents remains a high priority. Mannose-capped lipoarabinomannan (ManLAM) is a lipoglycan serving as a major cell wall component. ManLAM is also an early released antigen in the blood circulation system during Mycobacteria tuberculosis (M.tb) infection and is a perfect target antigen for TB diagnosis. In this study, ssDNA aptamers "antibodies" against ManLAM of the predominant clinical epidemic M.tb Beijing genotype strains were generated by the Systematic Evolution of Ligands by Exponential Enrichment (SELEX) technique. The selected single aptamer T9 demonstrated the highest specificity and binding affinity, with an equilibrium dissociation constant (Kd) of 668 ± 159 nmol/L. We further detected ManLAM antigens in serum and sputum samples from active pulmonary tuberculosis (aPTB) patients, extrapulmonary TB (EPTB) patients and healthy donors by using a T9 based enzyme-linked oligonucleotide assay (ELONA). The results showed that the specificity and sensitivity were 95.31% and 83.00% (for 100 aPTB serum samples), 98.70% and 92.71% (for 96 aPTB sputum samples), and 94.44% and 88.71% (for 62 EPTB serum samples), respectively. A good correlation was observed between the T9 aptamer-based ELONA and the clinical T-SPOT.TB. Thus, T9 based ELONA has potentials for diagnosis of TB, including inactive TB, smear-negative TB, EPTB, and TB with immunodeficiency, and assist the diagnosis of LTBI albeit it could not distinguish LTBI and active TB.
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Affiliation(s)
- Xiao-Lei Tang
- State Key Laboratory of Virology and Hubei Province Key Laboratory of Allergy and Immunology, Medical Research Institute, and Department of Immunology, Wuhan University School of Medicine, Donghu Road 165#, Wuhan 430071, Hubei Province, China; Department of Clinical Laboratory, the Second Hospital of Wuhu, Wuhu 241000, Anhui Province, China
| | - Shi-Min Wu
- State Key Laboratory of Virology and Hubei Province Key Laboratory of Allergy and Immunology, Medical Research Institute, and Department of Immunology, Wuhan University School of Medicine, Donghu Road 165#, Wuhan 430071, Hubei Province, China; Wuhan Center for Clinical Laboratory, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, China
| | - Yan Xie
- State Key Laboratory of Virology and Hubei Province Key Laboratory of Allergy and Immunology, Medical Research Institute, and Department of Immunology, Wuhan University School of Medicine, Donghu Road 165#, Wuhan 430071, Hubei Province, China
| | - Neng Song
- State Key Laboratory of Virology and Hubei Province Key Laboratory of Allergy and Immunology, Medical Research Institute, and Department of Immunology, Wuhan University School of Medicine, Donghu Road 165#, Wuhan 430071, Hubei Province, China
| | - Qing Guan
- State Key Laboratory of Virology and Hubei Province Key Laboratory of Allergy and Immunology, Medical Research Institute, and Department of Immunology, Wuhan University School of Medicine, Donghu Road 165#, Wuhan 430071, Hubei Province, China
| | - Chunhui Yuan
- State Key Laboratory of Virology and Hubei Province Key Laboratory of Allergy and Immunology, Medical Research Institute, and Department of Immunology, Wuhan University School of Medicine, Donghu Road 165#, Wuhan 430071, Hubei Province, China
| | - Xiang Zhou
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, Hubei Province, China
| | - Xiao-Lian Zhang
- State Key Laboratory of Virology and Hubei Province Key Laboratory of Allergy and Immunology, Medical Research Institute, and Department of Immunology, Wuhan University School of Medicine, Donghu Road 165#, Wuhan 430071, Hubei Province, China.
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Abstract
Objective The aim of this analysis was to perform a meta-analysis evaluating gender difference of delayed healing risk in patients with venous leg ulcers. Methods We searched the PubMed and Web of Knowledge from their inception to 4 July 2015. The meta-analysis of pooled odds ratio and 95% confidence interval for venous leg ulcers healing risk were calculated. Results Twelve studies with 4453 patients were included in the meta-analysis. The pooled odds ratio for healing rate stratified by gender was 1.055 (95% CI 0.955-1.165; Z = 1.05, p = 0.292) by fix-effects model. The Begg's test (z = 2.67, p = 0.007), the Egger's test (t = 4.00, p = 0.003), and asymmetric funnel plot suggested there was significant publication bias. Subgroup analysis showed the pooled odds ratios were 1.048 (95% CI 0.945-1.162; Z = 0.88, p = 0.376) in prospective studies and 1.439 (95% CI 0.757-2.736; Z = 1.11, p = 0.266) in retrospective studies. Sensitivity analyses by only pooled adjusted odds ratios showed the pooled odds ratio was 1.049 (95% CI 0.946-1.163; Z = 0.91, p = 0.365), which indicated the results of meta-analysis were robust. Meta-regression analysis showed the healing rate odds ratio stratified by gender was not related with healing rate (t = 0.73, p = 0.484). Conclusion Our meta-analysis indicates that no gender difference existed for delayed healing in venous leg ulcers. Our results may be also useful in developing a risk score for failure of venous leg ulcers to heal.
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Affiliation(s)
- Xiao-Lei Tang
- 1 Department of general surgery, Affiliated Hospital of Nantong University, Jiangsu Province, China PR
| | - Hong-Lin Chen
- 2 Nantong University, Nantong City, Jiangsu Province, PR China
| | - Fang-Fang Zhao
- 2 Nantong University, Nantong City, Jiangsu Province, PR China
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Sun JC, Xu M, Lu JL, Bi YF, Mu YM, Zhao JJ, Liu C, Chen LL, Shi LX, Li Q, Yang T, Yan L, Wan Q, Wu SL, Liu Y, Wang GX, Luo ZJ, Tang XL, Chen G, Huo YN, Gao ZN, Su Q, Ye Z, Wang YM, Qin GJ, Deng HC, Yu XF, Shen FX, Chen L, Zhao LB, Wang TG, Lai SH, Li DH, Wang WQ, Ning G. Associations of depression with impaired glucose regulation, newly diagnosed diabetes and previously diagnosed diabetes in Chinese adults. Diabet Med 2015; 32:935-43. [PMID: 25439630 DOI: 10.1111/dme.12649] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/25/2014] [Indexed: 12/29/2022]
Abstract
AIM To examine the association between depression and impaired glucose regulation, newly diagnosed diabetes and previously diagnosed diabetes in middle-aged and elderly Chinese people, and whether depression was associated with different treatment regimens or durations of diabetes. METHODS A cross-sectional study was performed among 229,047 adults living in the community aged ≥ 40 years from 25 centres in China. The self-reported depression rating scale Patient Health Questionnaire 9 (PHQ-9) was used to diagnose probable and sub-threshold depression. Glucose metabolism status was determined according to World Health Organization 1999 diagnostic criteria. RESULTS The numbers of participants with normal glucose regulation, impaired glucose regulation, newly diagnosed diabetes and previously diagnosed diabetes were 120,458, 59,512, 24,826 and 24,251, respectively. The prevalence of sub-threshold depression in the total sample of participants was 4.8% (4.8%, 4.8%, 4.4% and 5.6% from normal glucose regulation to previously diagnosed diabetes, respectively), and the prevalence of probable depression was 1.1% (1.1%, 1.0%, 0.9% and 1.8% from normal glucose regulation to previously diagnosed diabetes, respectively). Compared with participants with normal glucose regulation, those with previously diagnosed diabetes had increased odds of probable depression [odds ratio (OR) = 1.61, 95% confidence interval (CI) 1.39-1.87] and sub-threshold depression (OR = 1.14, 95% CI 1.06-1.24), after adjustment for multiple confounding factors. Newly diagnosed diabetes or impaired glucose regulation was not associated with depression. Among those with previously diagnosed diabetes, insulin treatment was associated with greater odds of depression compared with no treatment or oral anti-diabetic medicine. CONCLUSION Previously diagnosed diabetes, but not newly diagnosed diabetes or impaired glucose regulation, was associated with a higher prevalence of depression. Patients receiving insulin were more likely to have depression than those not receiving treatment or being treated with oral anti-diabetic medicine.
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Affiliation(s)
- J C Sun
- Laboratory of Endocrine and Metabolic Diseases, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, and Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - M Xu
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J L Lu
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y F Bi
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y M Mu
- People's Liberation Army General Hospital, Beijing, China
| | - J J Zhao
- Shandong Provincial Hospital, Jinan, China
| | - C Liu
- Jiangsu Province Hospital on Integration of Chinese and Western Medicine, Nanjing, China
| | - L L Chen
- Wuhan Xiehe Hospital, Huazhong University of Science and Technology School of Medicine, Wuhan, China
| | - L X Shi
- Affiliated Hospital of Guiyang Medical College, Guiyang, China
| | - Q Li
- The Second Affilliated Hospital of Haerbin Medical University, Haerbin, China
| | - T Yang
- The First Affiliated Hospital with Nanjing Medical University, Jiangsu Province Hospital, Nanjing, China
| | - L Yan
- Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Q Wan
- The Affiliated Hospital of Luzhou Medical College, Luzhou, China
| | - S L Wu
- Xinjiang Kelamayi Peoples Hospital, Kelamayi, China
| | - Y Liu
- The First Hospital of Jilin University, Changchun, China
| | - G X Wang
- The First Hospital of Jilin University, Changchun, China
| | - Z J Luo
- The First Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - X L Tang
- The First Hospital of Lanzhou University, Lanzhou, China
| | - G Chen
- Fujian Provincial Hospital, Fujian Medical University, Fuzhou, China
| | - Y N Huo
- Jiangxi Peoples Hospital, Nanchang, China
| | - Z N Gao
- Dalian Municipal Central Hospital, Dalian, China
| | - Q Su
- Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Z Ye
- Zhejiang Center for Disease Control and Prevention, Hangzhou, China
| | - Y M Wang
- The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - G J Qin
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - H C Deng
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - X F Yu
- Wuhan Tongji Hospital, Huazhong University of Science and Technology School of Medicine, Wuhan, China
| | - F X Shen
- The First Affiliated Hospital of Wenzhou Medical University, The First Provincial Wenzhou Hospital of Zhejiang, Wenzhou, China
| | - L Chen
- Qilu Hospital, University of Shandong School of Medicine, Jinan, China
| | - L B Zhao
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - T G Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - S H Lai
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - D H Li
- Department of Gastrointestinal Medical Oncology, University of Texas MD Anderson Cancer Center, Houston, >TX, USA
| | - W Q Wang
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - G Ning
- Laboratory of Endocrine and Metabolic Diseases, Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, and Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Endocrine and Metabolic Diseases, Shanghai Clinical Center for Endocrine and Metabolic Diseases, Shanghai Institute of Endocrine and Metabolic Diseases, Rui Jin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Tang XL, Zhou YX, Wu SM, Pan Q, Xia B, Zhang XL. CFP10 and ESAT6 aptamers as effective Mycobacterial antigen diagnostic reagents. J Infect 2014; 69:569-80. [PMID: 24968239 DOI: 10.1016/j.jinf.2014.05.015] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 04/21/2014] [Accepted: 05/09/2014] [Indexed: 01/12/2023]
Abstract
The development of effective Mycobacterial antigen diagnostic reagents remains a high priority. The 6-kDa early secreted antigenic target (ESAT6) and 10-kDa culture filtrate protein (CFP10) are secreted early by virulent Mycobacterium tuberculosis (M. tb) and are not present in the non-virulent Bacillus Calmette-Guerin (BCG). In this study, we used a Systematic Evolution of Ligands by Exponential Enrichment (SELEX) technique to screen for a functional ssDNA aptamer "antibody" that specifically bound to ESAT6-CFP10 (CE) protein. The selected single ssDNA aptamers (CE24 and CE15) demonstrated the highest specificity and binding affinity to CFP10 (CE24: Kd = 3.75 × 10(-7) M) and ESAT6 (CE15: Kd = 1.6 × 10(-7) M). We further detected CFP10 and ESAT6 proteins in serum samples from active pulmonary tuberculosis (TB) patients, extrapulmonary TB patients and healthy donors by using an enzyme-linked oligonucleotide assay (ELONA). The results showed that the sensitivity and specificity were 100% and 94.1% (using CE24 aptamer-based ELONA) and 89.6% and 94.1% (using CE15 aptamer-based ELONA), respectively. A good correlation was observed between aptamer-based ELONA and T-SPOT TB assay. Thus, our study suggests that CE24 and CE15 have potentially broad applications as early antigen diagnostic agents not only for active pulmonary TB, extrapulmonary TB, but also possibly for latent TB infection and TB with immune-deficiency.
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Affiliation(s)
- Xiao-Lei Tang
- State Key Laboratory of Virology, Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University School of Basic Medical Sciences, Donghu Road 165#, Wuhan 430071, Hubei Province, China
| | - Ya-Xiong Zhou
- State Key Laboratory of Virology, Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University School of Basic Medical Sciences, Donghu Road 165#, Wuhan 430071, Hubei Province, China
| | - Si-Min Wu
- State Key Laboratory of Virology, Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University School of Basic Medical Sciences, Donghu Road 165#, Wuhan 430071, Hubei Province, China; Department of Laboratory Medicine, Wuhan Medical Treatment Center, Wuhan, China
| | - Qin Pan
- State Key Laboratory of Virology, Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University School of Basic Medical Sciences, Donghu Road 165#, Wuhan 430071, Hubei Province, China
| | - Bing Xia
- Department of Gastroenterology and Research of Digestive Diseases, Zhongnan Hospital, Wuhan University School of Medicine, Wuhan 430071, China
| | - Xiao-Lian Zhang
- State Key Laboratory of Virology, Department of Immunology, Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University School of Basic Medical Sciences, Donghu Road 165#, Wuhan 430071, Hubei Province, China.
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Tang XL, Griffith JF, Qin L, Hung VW, Kwok AW, Zhu TY, Kun EW, Leung PC, Li EK, Tam LS. SLE disease per se contributes to deterioration in bone mineral density, microstructure and bone strength. Lupus 2013; 22:1162-8. [PMID: 23884986 DOI: 10.1177/0961203313498802] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE The objective of this report is to assess the effect of systemic lupus erythematosus (SLE) disease itself on deterioration of bone mineral density (BMD), microstructure and bone strength. METHOD Thirty age-matched SLE patients on long-term glucocorticoids (GC) (SLE/GC), 30 SLE patients without GC (SLE/non-GC) and 60 healthy controls were examined. Areal BMD (aBMD) was measured by dual-energy X-ray absorptiometry. Bone geometry, volumetric BMD (vBMD), and architectural parameters at the nondominant distal radius were assessed by high-resolution peripheral quantitative computed tomography (HR-pQCT). Bone strength was estimated by HR-pQCT-based micro-finite element analysis. RESULTS Adjusted for menopausal status and adjusted calcium level, when compared with controls, SLE/non-GC patients had significantly lower aBMD at femoral neck and total hip, and diminished radial total vBMD, cortical area, vBMD and thickness, respectively, by 8.3%, 8%, 2.7% and 9.2%, as well as significant compromised bone strength (stiffness, failure load and apparent modulus) by 8.3%, 9.1% and 9.5%, respectively. Similar alterations were also found in SLE/GC patients when compared to controls. In the premenopausal subgroup analysis, when compared with controls, total hip aBMD and radial cortical area were significantly lower in SLE/non-GC patients, and cortical area and thickness were significantly deficit in SLE/GC patients. However, no significant difference in any bone variables was present between SLE/GC and SLE/non-GC patients in the entire cohort or in the premenopausal subgroup. CONCLUSION SLE disease per se contributes to the deterioration in bone density, cortical microstructure and bone strength. This might help to explain the considerably higher fracture risk seen in SLE patients.
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Affiliation(s)
- X L Tang
- 1Department of Medicine & Therapeutics, The Chinese University of Hong Kong, Hong Kong; Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Hong Kong; Department of Orthopedics & Traumatology, The Chinese University of Hong Kong, Hong Kong; Jockey Club Centre of Osteoporosis Care and Control; The Chinese University of Hong Kong, Hong Kong; and Department of Medicine & Geriatrics, Tai Po Hospital, Hong Kong
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Tang XL, Qin L, Kwok AW, Zhu TY, Kun EW, Hung VW, Griffith JF, Leung PC, Li EK, Tam LS. Alterations of bone geometry, density, microarchitecture, and biomechanical properties in systemic lupus erythematosus on long-term glucocorticoid: a case-control study using HR-pQCT. Osteoporos Int 2013; 24:1817-26. [PMID: 23104200 DOI: 10.1007/s00198-012-2177-5] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Accepted: 09/19/2012] [Indexed: 11/25/2022]
Abstract
UNLABELLED Compared to controls, HR-pQCT at distal radius of SLE patients on chronic glucocorticoid (SLE/GC) revealed reduced bone area, vBMD, deteriorated microarchitecture, and unevenly distributed stresses limited to cortical bone. Despite similar trabecular quality, whole bone strength decreased in patients. These alterations may partly explain high fracture rates in SLE/GC. INTRODUCTION To assess bone geometric, densitometric, microarchitectural, and biomechanical properties in patients with systemic lupus erythematosus (SLE) on long-term glucocorticoid (GC) (SLE/GC) as compared with healthy controls. METHODS A total of 180 female SLE patients and 180 healthy controls were in this cross-sectional study to assess areal bone mineral density (aBMD) by dual-energy X-ray absorptiometry. High-resolution peripheral quantitative computed tomography (HR-pQCT) and microfinite element analysis (μFEA) was performed at distal radius. RESULTS In addition to significantly lower aBMD at femoral neck, total hip and lumbar spine, cortical area, average volumetric BMD (vBMD) and cortical vBMD also significantly reduced by 5.3, 5.7, to 1.9 % in SLE patients, respectively. Deteriorations of cortical microarchitecture were pronounced in patients, with 6.3 % reduction in cortical thickness and 13.6 % higher in cortical porosity. Local stresses were more unevenly distributed through cortical bone in patients. SLE/GC patients had decreased whole bone stiffness, estimated failure load, and apparent modulus. Parameters related to trabecular bone density and microarchitecture were comparable between patients and controls. CONCLUSION In SLE/GC patients, despite a reduction in bone area, vBMD and deteriorated microarchitecture and unevenly distributed stresses limited to the cortical compartment, whole bone strength decreased. HR-pQCT and μFEA were promising in elucidating the potential underlying pathophysiology of bone loss and propensity to fracture in SLE/GC and provide us additional information about alterations of bone quality which might better predict fracture risk beyond aBMD in SLE/GC.
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Affiliation(s)
- X L Tang
- Department of Medicine & Therapeutics, The Chinese University of Hong Kong, 9/F, Clinical Science Building, Prince of Wales Hospital, 30-32 Ngan Shing Street, Shatin, N.T., Hong Kong
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Ma ZC, Hong Q, Wang YG, Liang QD, Tan HL, Xiao CR, Tang XL, Shao S, Zhou SS, Gao Y. Ferulic acid induces heme oxygenase-1 via activation of ERK and Nrf2. Drug Discov Ther 2012; 5:299-305. [PMID: 22466441 DOI: 10.5582/ddt.2011.v5.6.299] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study investigated the effect of ferulic acid (FA) on the up-regulation of heme oxygenase-1 (HO-1) in lymphocytes and the molecular mechanisms involved. Lymphocytes were treated with FA (0.001-0.1 μM) for certain times. Cell viability, the activity and level of expression of HO-1, and signal pathways were analyzed. FA significantly upregulated HO-1 expression both at the level of mRNA and protein in lymphocytes. Moreover, FA induced NF-E2-related factor (Nrf2) nuclear translocation and transcriptional activity, which is upstream of FA induced HO-1 expression. In addition, lymphocytes treated with FA exhibited activation of extracellular regulated kinase (ERK) and treatments with U0126 (an ERK kinase inhibitor) attenuated the FA induced activation of Nrf2, resulting in a decrease in HO-1 expression. Zinc protoporphyrin (ZnPP, a HO-1 inhibitor) markedly suppressed cytoprotection from radiation-induced cell damage by FA. Results suggested that the ERK signaling pathway controlled the anti-oxidation of FA by regulating the expression of the antioxidant enzyme HO-1.
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Affiliation(s)
- Z C Ma
- Beijing Institute of Radiation Medicine, Beijing, China
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Liu Y, Cheng HD, Huang JH, Zhang YT, Tang XL, Tian JW, Wang Y. Computer aided diagnosis system for breast cancer based on color Doppler flow imaging. J Med Syst 2012; 36:3975-82. [PMID: 22791011 DOI: 10.1007/s10916-012-9869-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Accepted: 06/26/2012] [Indexed: 11/24/2022]
Abstract
Color Doppler flow imaging takes a great value in diagnosing and classifying benign and malignant breast lesions. However, scanning of color Doppler sonography is operator-dependent and ineffective. In this paper, a novel breast classification system based on B-Mode ultrasound and color Doppler flow imaging is proposed. First, different feature extraction methods were used to obtain the texture and geometric features from B-Mode ultrasound images. In color Doppler feature extraction stage, several spectrum features are extracted by applying blood flow velocity analysis to Doppler signals. Moreover, a velocity coherent vector method is proposed based on color coherence vector, which is helpful for designing to the optimize detection of flow indices from different blood flow velocity fields automatically. Finally, a support vector machine classifier with selected feature vectors is used to classify breast tumors into benign and malignant. The experimental results demonstrate that the proposed computer-aided diagnosis system is useful for reducing the unnecessary biopsy and death rate.
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Affiliation(s)
- Yan Liu
- School of Computer Science and Technology, Harbin Institute of Technology, People's Republic of China.
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Chu ZX, Ma Q, Lin YX, Tang XL, Zhou YQ, Zhu SW, Fan J, Cheng BJ. Genome-wide identification, classification, and analysis of two-component signal system genes in maize. Genet Mol Res 2011; 10:3316-30. [PMID: 22194197 DOI: 10.4238/2011.december.8.3] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Cytokinins play many vital roles in plant development and physiology. In plants, cytokinin signals are sensed and transduced by the two-component signal system. This signaling cascade is typically composed of three proteins: a sensory histidine kinase, a histidine phosphotransfer protein, and a response regulator. Through a comprehensive genome-wide analysis of the maize (Zea mays) genome, 48 genes were identified, including 11 ZmHKs, 9 ZmHPs, and 28 ZmRRs (21 A-type ZmRRs and 7 B-type ZmRRs). Using maize genome sequence databases, we analyzed conserved protein motifs and established phylogenetic relationships based on gene structure, homology, and chromosomal location. The duplication of these two-component system genes in the maize genome corresponded to the clusters of these genes in the phylogenetic trees. Sequence analysis of the duplicate genes demonstrated that one gene may be in gene duplication, and that there was significant variation in the evolutionary history of the different gene families. We assessed the expression levels of all ZmRRs in the leaves and roots by reverse transcription PCR; they were all found to be active. Our results provide a foundation for functional and evolutionary studies on maize two-component signal system proteins.
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Affiliation(s)
- Z X Chu
- Anhui Province Key Laboratory of Crop Biology, School of Life Science, Anhui Agricultural University, Hefei, China
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Tang XL, Bi XH, Sheng GY, Tan JH, Fu JM. Seasonal variation of the particle size distribution of n-alkanes and polycyclic aromatic hydrocarbons (PAHs) in urban aerosol of Guangzhou, China. Environ Monit Assess 2006; 117:193-213. [PMID: 16917707 DOI: 10.1007/s10661-006-0440-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2004] [Accepted: 06/30/2005] [Indexed: 05/11/2023]
Abstract
Seasonal aerosol samples have been collected by Andersen Hi-Vol pumping system equipped with a five stage cascade impactor and a backup filter (size range: 10-7.2 microm, 7.2-3.0 microm, 3.0-1.5 microm, 1.5-0.95 microm, 0.95-0.49 microm, <or=0.49 microm) in the Liwan district, Guangzhou. n-Alkanes were measured using gas chromatography and PAHs were measured using gas chromatography/mass spectrometry analysis. The bimodal log-normal distributions of n-alkanes and semi-volatile PAHs were found, while for non-volatile PAHs that was unimodal, so much as the mode of semi-volatile PAHs was similar with that of the particles. The n-alkanes and PAHs were preferably associated with fine particles. C (max) (carbon number maximum) (C(22)-C(26)), CPI (carbon preference index) (1.12-1.21), U/R (unresolved to resolved components ratio) (7.42-10.7), wax% (0.9-3.12%) and the diagnostic ratios for PAHs revealed that vehicular emission was the major source of these organic compounds during the study periods, while the contribution of epicuticular waxes emitted by terrestrial plants was minor. CPI(2) (values for petrogenic hydrocarbons), CPI(3) (values for biogenic n-alkanes) and wax% revealed that the natural preferentially accumulated in the larger aerosol while the anthropogenic in the smaller. In addition, the different MMDs (mass median diameters) for n-alkanes and PAHs were observed in different seasons. The MMDs for n-alkanes and PAHs were higher in autumn/winter than those in spring/summer. The seasonal effect was related to the hydrocarbon content in the individual particulate fractions, showing a preferential association of n-alkanes and PAHs with larger particles in the autumn/winter season.
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Affiliation(s)
- X L Tang
- State Key Laboratory of Organic Geochemistry, Guangdong Key Laboratory of Environment and Resources, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, 510640, Guangzhou, PR China
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Tang XL, Peppler MS, Irvin RT, Suresh MR. Use of bispecific antibodies in molecular velcro assays whose specificity approaches the theoretical limit of immunodetection for Bordetella pertussis. Clin Diagn Lab Immunol 2005; 11:752-7. [PMID: 15242951 PMCID: PMC440620 DOI: 10.1128/cdli.11.4.752-757.2004] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A bispecific monoclonal antibody (bsMAb) that detects Bordetella pertussis, the causative agent of whooping cough, and horseradish peroxidase (HRPO) has been developed by use of the quadroma technology. A quadroma, P123, was produced by fusing two well-characterized hybridomas against the bacterium and the enzyme and was subcloned to obtain a stable bsMAb-secreting cell line. The quadroma was theoretically expected to produce up to 10 different molecular species of immunoglobulins, so secreted bispecific antibody was complexed with excess HRPO and the HRPO-bsMAb complex was purified in one step by benzhydroxamic acid-agarose affinity cochromatography. An ultrasensitive homosandwich molecular "velcro" enzyme-linked immunosorbent assay for the detection of B. pertussis whole bacteria with HRPO-bsMAb was established in both microplate and nasopharyngeal swab formats. This assay demonstrates a high sensitivity that approaches the theoretical limit of detection of one bacterium. This new nanoprobe can be used to develop a new generation of assays that are simple, inexpensive alternatives to quantitative PCR and that can be used by clinical laboratories. This strategy of homosandwich assays with solid-phase monospecific antibodies and solution-phase bsMAb with specificity for the same repeating surface determinants can be applied to generate ultrasensitive immunodiagnostic assays for viruses and bacteria.
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Affiliation(s)
- X L Tang
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada T6G 2N8
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Gu XT, Gao ZG, Shen BR, Hu GZ, Tang XL, Ma Q. [Changes in T-lymphocyte subsets of peripheral blood in patients with filarial chyluria]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 18:103-5. [PMID: 12567727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To study the changes in T-lymphocyte subsets CD4+:CD8+ of peripheral blood in 29 patients with present chyluria(PPC), 29 patients with chyluria history but without chyluria (PNPC) and 38 healthy controls. METHODS The determination of CD3+, CD4+ and CD8+ was conducted using test reagents kits. RESULTS The percentage of CD3+, CD4+ cell were signfcantly decreased in PPS group than in PNPC and healthy control group, the ratio of CD4+/CD8+ being under 1.0. The T-lymphocyte subsets (CD3+, CD4+, CD8+) and CD4+/CD8+ ratio of both PNPC and healthy control group were all within normal range. CONCLUSION The immune function of the patients with filarial chyluria was impaired in terms of the changes in T-lymphocyte subsets.
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Affiliation(s)
- X T Gu
- Health and Anti-epidemic Station of Cangshan County, Shandong Province, Cangshan 277700
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Tang GH, Zhang L, Tang XL, Wang YX, Yin DZ. [Synthesis and determination for enantiomeric purity of 6-fluoro-L-DOPA]. Yao Xue Xue Bao 2001; 36:739-42. [PMID: 12579971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
AIM To study the synthesis and determination for enantiomeric purity of 6-fluoro-L-3, 4-dihydroxyphenylalanine (6-fluoro-L-DOPA, 6-FDOPA). METHODS 2-(2-Fluoro-4, 5-dimethoxybenzyl)-N-(diphenylmethylene) glycine tert-butyl ester (8), a new compound, was synthesized from the starting material nitroveratraldehyde via the nucleophilic displacement, reductive iodination, and chiral catalytic phase-transfer alkylation, and 6-FDOPA was prepared from hydrolysis of 8. The enantiomeric purity of 6-FDOPA was determined by HPLC method using a chiral mobil phase and reversed-phase C18 column. RESULTS The total time of synthesis was less than 90 min, the overall chemical yield from potassium fluoride was about 33%, and the enantiomeric purity was above 95%. CONCLUSION Large scale production of 6-FDOPA and automatic synthesis of 6-[18F]fluoro-L-DOPA with excellent chemical and entiomeric purity are available. The practical technique was provided for the radiochemical synthesis and entiomeric purity of 6-[18F]fluoro-L-DOPA.
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Affiliation(s)
- G H Tang
- Radiopharmaceutical Research Centre, Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, Shanghai 201800, China.
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Kodani E, Bolli R, Tang XL, Auchampach JA. Protection of IB-MECA against myocardial stunning in conscious rabbits is not mediated by the A1 adenosine receptor. Basic Res Cardiol 2001; 96:487-96. [PMID: 11605996 DOI: 10.1007/s003950170031] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The goal of this study was to determine whether the protective effects of the A3AR agonist N6-(3-iodobenzyl)adenosine-5'-N-methylcarboxamide (IB-MECA) against myocardial stunning are mediated by the A1AR. Six groups of conscious rabbits underwent a sequence of six 4-minute coronary occlusion (O)/4-minute reperfusion (R) cycles for three consecutive days (days 1, 2, and 3). In vehicle-treated rabbits (group I), the recovery of systolic wall thickening (WTh) in the ischemic/reperfused region was markedly depressed on day 1, indicating the presence of severe myocardial stunning. On days 2 and 3, however, the recovery of systolic WTh was markedly accelerated, indicating the presence of late ischemic preconditioning (PC). When rabbits were pretreated with the A1AR agonist 2-chloro-N6-cyclopentyladenosine (CCPA, 100 microg/kg i.v.) or with IB-MECA (100 microg/kg i.v.) 10 min prior to the first sequence of O/R cycles on day 1 (group III and V, respectively), the recovery of systolic WTh was markedly accelerated compared to vehicle-treated animals (reflected as an approximately 48% decrease in the total deficit of systolic WTh). The magnitude of the protection afforded by adenosine receptor agonists was equivalent to that provided by late ischemic PC. Pre-treating rabbits with the A1AR antagonist N-0861 completely blocked both the hemodynamic and the cardioprotective effects of CCPA (group IV). However, the same dose of N-0861 did not block the cardioprotective actions of IB-MECA (group VI). Importantly, N-0861 did not influence the degree of myocardial stunning in the absence of PC (group II) and it did not block the development of late ischemic PC. Taken together, these results provide conclusive evidence that the cardioprotective effects of IB-MECA are not mediated via the A1AR, supporting the concept that activation of A3ARs prior to an ischemic challenge provides protection against ischemia/reperfusion injury.
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Affiliation(s)
- E Kodani
- Division of Cardiology, University of Louisville, and Jewish Heart and Lung Institute, KY 40292, USA
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Hill M, Takano H, Tang XL, Kodani E, Shirk G, Bolli R. Nitroglycerin induces late preconditioning against myocardial infarction in conscious rabbits despite development of nitrate tolerance. Circulation 2001; 104:694-9. [PMID: 11489777 DOI: 10.1161/hc3201.092218] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Recent studies suggest that the late phase of ischemic preconditioning (PC) can be mimicked by pretreatment with NO donors. The ability of clinically relevant NO donors to induce PC against infarction, however, has not been evaluated. Furthermore, it is unknown whether tolerance to the hemodynamic actions of nitrates also extends to their PC effects. METHODS AND RESULTS Conscious rabbits underwent a 30-minute coronary occlusion and 3 days of reperfusion. A 60-minute intravenous (IV) infusion of nitroglycerin (NTG) ending 1 hour before occlusion reduced infarct size, indicating an early PC effect. When the time interval between NTG infusion and occlusion was extended to 24 or 72 hours, the infarct-sparing action of NTG became even more pronounced, indicating a robust late PC effect. Transdermal NTG patches elicited a late PC effect that was (1) equivalent to that induced by IV NTG, demonstrating the efficacy of transdermal NTG as an alternative form of NTG delivery for inducing late PC, and (2) similar in nitrate-tolerant and -nontolerant rabbits, demonstrating that tolerance does not extend to the PC effects of NTG. CONCLUSIONS In conscious rabbits, administration of NTG via either the IV or the transdermal route elicits a robust protective effect against infarction that lasts for 72 hours. The magnitude of NTG-induced cardioprotection is equivalent to that observed during the late phase of ischemic PC and is not affected by the development of tolerance. These findings reveal a new action of nitrates and support novel applications of these drugs for protecting the ischemic myocardium in patients.
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Affiliation(s)
- M Hill
- Experimental Research Laboratory, Division of Cardiology, University of Louisville and Jewish Hospital Heart and Lung Institute, Louisville, KY, USA
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Kodani E, Shinmura K, Xuan YT, Takano H, Auchampach JA, Tang XL, Bolli R. Cyclooxygenase-2 does not mediate late preconditioning induced by activation of adenosine A1 or A3 receptors. Am J Physiol Heart Circ Physiol 2001; 281:H959-68. [PMID: 11454603 DOI: 10.1152/ajpheart.2001.281.2.h959] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Recent studies have demonstrated that the adenosine A1 receptor agonist 2-chloro-N6-cyclopentyladenosine (CCPA) and the adenosine A3 receptor agonist N6-(3-iodobenzyl)adenosine-5'-N-methyluronamide (IB-MECA) produce a delayed phase of protection against infarction similar to the late phase of ischemic preconditioning (PC). However, the mechanism for adenosine A1 or A3 receptor-induced late PC remains unknown. The goal of this study was to determine whether the delayed cardioprotective effects of adenosine A1 or A3 receptors are mediated by cyclooxygenase-2 (COX-2), which is an obligatory mediator of ischemic PC. We found that COX-2 protein expression (Western blotting) did not increase 24 h after the administration of either CCPA (100 microg/kg iv) or IB-MECA (300 microg/kg iv) compared with controls. To probe the role of constitutive COX-2 expression, conscious rabbits were subjected to 30-min coronary occlusion followed by 72-h reperfusion. Twenty-four hours before the occlusion, the rabbits were pretreated with CCPA (100 microg/kg iv) or IB-MECA (300 microg/kg iv). Both CCPA and IB-MECA resulted in a marked (approximately 47%) reduction in infarct size vs. controls [36.2 +/- 4.0% of the risk region (n = 9), 31.2 +/- 4.7% (n = 9), and 59.5 +/- 3.8% (n = 9), respectively; P < 0.05], similar to that induced by the late phase of ischemic PC [31.8 +/- 3.2% (n = 9)]. The selective COX-2 inhibitor N-(2-[cyclohexyloxy]4-nitrophenyl)methanesulfonamide (NS-398, 5 mg/kg), which abolished the protective effect of ischemic late PC, failed to block the protection of either CCPA or IB-MECA, indicating that COX-2 does not mediate the delayed protection of either CCPA or IB-MECA [CCPA + NS-398, 29.1 +/- 3.4% (n = 7); IB-MECA + NS-398, 34.9 +/- 2.9% (n = 8)]. NS-398 in itself did not affect infarct size [54.9 +/- 3.7% (n = 9)]. Taken together, these results demonstrate that, in contrast to ischemia-induced late PC, the mechanisms of adenosine A1 or A3 receptor-induced late PC is independent of COX-2.
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Affiliation(s)
- E Kodani
- Experimental Research Laboratory, Division of Cardiology, University of Louisville and Jewish Heart and Lung Institute, Louisville, Kentucky 40292, USA
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Vondriska TM, Zhang J, Song C, Tang XL, Cao X, Baines CP, Pass JM, Wang S, Bolli R, Ping P. Protein kinase C epsilon-Src modules direct signal transduction in nitric oxide-induced cardioprotection: complex formation as a means for cardioprotective signaling. Circ Res 2001; 88:1306-13. [PMID: 11420308 DOI: 10.1161/hh1201.092994] [Citation(s) in RCA: 63] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An essential role for protein kinase C epsilon (PKCepsilon) has been shown in multiple forms of cardioprotection; however, there is a distinct paucity of information concerning the signaling architecture that is responsible for the manifestation of a protective phenotype. We and others have recently shown that signal transduction may proceed via the formation of signaling complexes (Circ Res. 2001;88:59-62). In order to understand if the assembly of multiprotein complexes is the manner by which signaling is conducted in cardioprotection, we designed a series of experiments to characterize the associations of Src tyrosine kinase with PKCepsilon in a conscious rabbit model of nitric oxide (NO)-induced late preconditioning. Our data demonstrate that PKCepsilon and Src can form functional signaling modules in vitro: PKCepsilon interacts with Src; the association with PKCepsilon activates Src; and adult cardiac cells receiving recombinant adenoviruses encoding PKCepsilon exhibit increased Src activity. Furthermore, our results show that NO-induced late preconditioning involved PKCepsilon-Src module formation and enhanced the enzymatic activity of PKCepsilon-associated Src. Inhibition of PKC blocked cardioprotection, module formation, and PKCepsilon-associated Src activity, providing direct evidence for a functional role of the PKCepsilon-Src module in the orchestration of NO-induced cardioprotection in conscious rabbits.
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Affiliation(s)
- T M Vondriska
- Department of Physiology, Division of Cardiology, University of Louisville, Louisville, KY, USA
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Tang GH, Tang XL. [Application of nuclear medicine techniques in drug development]. Yao Xue Xue Bao 2001; 36:390-5. [PMID: 12584866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Affiliation(s)
- G H Tang
- Nanfang PET Centre, Nanfang Hospital, First Military Medical University, Guangzhou 510515, China.
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Abstract
BACKGROUND Extracellular superoxide dismutase (Ec-SOD) may protect the heart against myocardial infarction (MI) because of its extended half-life and capacity to bind heparan sulfate proteoglycans on cellular surfaces. Accordingly, we used direct gene transfer to increase systemic levels of Ec-SOD and determined whether this gene therapy could protect against MI. METHODS AND RESULTS The cDNA for human Ec-SOD was incorporated into a replication-deficient adenovirus (Ad5/CMV/Ec-SOD). Injection of this virus produced a high level of Ec-SOD in the liver, which was redistributed to the heart and other organs by injection of heparin. Untreated rabbits (group I) underwent a 30-minute coronary occlusion and 3 days of reperfusion. For comparison, preconditioned rabbits (group II) underwent a sequence of six 4-minute-occlusion/4-minute-reperfusion cycles 24 hours before the 30-minute occlusion. Control-treated rabbits (group III) were injected intravenously with Ad5/CMV/nls-LacZ, and gene-therapy rabbits (group IV) were injected with Ad5/CMV/Ec-SOD 3 days before the 30-minute occlusion. Both groups treated with Ad5 received intravenous heparin 2 hours before the 30-minute occlusion. Infarct size (percent risk area) was similar in groups I (57+/-6%) and III (58+/-5%). Ec-SOD gene therapy markedly reduced infarct size to 25+/-4% (P<0.01, group IV versus group III), a protection comparable to that of the late phase of ischemic preconditioning (29+/-3%, P<0.01 group II versus group I). CONCLUSIONS Direct gene transfer of the cDNA encoding membrane-bound Ec-SOD affords powerful cardioprotection, providing proof of principle for the effectiveness of antioxidant gene therapy against MI.
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Affiliation(s)
- Q Li
- Cardiology Research Laboratory, Division of Cardiology, University of Louisville and Jewish Hospital Heart and Lung Institute, Louisville, KY, USA
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Takano H, Bolli R, Black RG, Kodani E, Tang XL, Yang Z, Bhattacharya S, Auchampach JA. A(1) or A(3) adenosine receptors induce late preconditioning against infarction in conscious rabbits by different mechanisms. Circ Res 2001; 88:520-8. [PMID: 11249876 DOI: 10.1161/01.res.88.5.520] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We investigated whether activation of A(1) or A(3) adenosine receptors (ARs) induces late preconditioning (PC) against infarction in conscious rabbits using the selective AR agonists 2-chloro-N(6)-cyclopentyladenosine (CCPA) and N(6)-3-iodobenzyladenosine-5'-N-methylcarboxamide (IB-MECA). In vitro radioligand binding and cAMP assays demonstrated CCPA to be approximately 200- to 400-fold selective for the rabbit A(1)AR and IB-MECA to be approximately 20-fold selective for the rabbit A(3)AR. We observed that (1) pretreatment of rabbits 24 hours earlier with CCPA (100 microgram/kg IV bolus) or IB-MECA (100 or 300 microgram/kg) resulted in an approximately 35% to 40% reduction in the size of the infarct induced by 30 minutes of coronary artery occlusion and 72 hours of reperfusion compared with vehicle-treated rabbits, whereas pretreatment with the selective A(2A)AR agonist CGS 21680 (100 microgram/kg) had no effect; (2) the delayed cardioprotective effect of CCPA, but not that of IB-MECA, was completely blocked by coadministration of the highly selective A(1)AR antagonist N-0861; (3) inhibition of nitric oxide synthase (NOS) with N(omega)-nitro-L-arginine during the 30-minute occlusion abrogated the infarct-sparing action of CCPA but not that of IB-MECA; and (4) inhibition of ATP-sensitive potassium (K(ATP)) channels with sodium 5-hydroxydecanoate during the 30-minute occlusion blocked the cardioprotective effects of both CCPA and IB-MECA. Taken together, these results indicate that activation of either A(1)ARs or A(3)ARs (but not A(2A)ARs) elicits delayed protection against infarction in conscious rabbits and that both A(1)AR- and A(3)AR-induced cardioprotection involves opening of K(ATP) channels. However, A(1)AR-induced late PC uses an NOS-dependent pathway whereas A(3)AR-induced late PC is mediated by an NOS-independent pathway.
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Affiliation(s)
- H Takano
- Division of Cardiology, University of Louisville and Jewish Heart and Lung Institute, Louisville, KY, USA
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Abstract
It is unknown whether late preconditioning (PC) enhances the recovery of left ventricular (LV) function after a myocardial infarction. Thus 25 conscious rabbits were subjected to a 30-min coronary occlusion followed by 28 days of reperfusion after PC 24 h earlier with either ischemia or nitric oxide donor administration [S-nitroso-N-acetylpenicillamine (SNAP)]. The recovery of wall thickening (WTh) after reperfusion was significantly improved in the ischemic PC and SNAP PC groups compared with controls, both at rest and during dobutamine stress. Interestingly, neither ischemia- nor SNAP-induced late PC attenuated myocardial stunning from day 1 through day 14. Infarct size was smaller in the ischemic PC and SNAP PC groups compared with controls. In all groups, WTh at 28 days was positively and linearly related to the percentage of viable tissue in the region underlying the ultrasonic crystal (r = 0.90), indicating that the improvement in LV function after both ischemia-induced and NO donor-induced late PC can be fully explained by the reduction in infarct size; a separate effect of late PC on LV remodeling or LV contractility need not be invoked. In conclusion, in conscious rabbits late PC, induced either by ischemia or pharmacologically, not only limits infarct size but also enhances the recovery of LV function after myocardial infarction. This finding has important clinical implications and provides triphenyltetrazolium chloride-independent evidence that late PC limits myocellular death after sustained ischemia.
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Affiliation(s)
- H Takano
- Experimental Research Laboratory, Division of Cardiology, University of Louisville, Louisville, Kentucky 40292, USA
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Xuan YT, Tang XL, Qiu Y, Banerjee S, Takano H, Han H, Bolli R. Biphasic response of cardiac NO synthase isoforms to ischemic preconditioning in conscious rabbits. Am J Physiol Heart Circ Physiol 2000; 279:H2360-71. [PMID: 11045973 DOI: 10.1152/ajpheart.2000.279.5.h2360] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In conscious rabbits, a sequence of six 4-min coronary occlusion/4-min reperfusion cycles, which elicits late preconditioning (PC), caused rapid activation of calcium-dependent nitric oxide (NO) synthase (NOS) [cNOS; endothelial NOS (eNOS) and/or neuronal NOS (nNOS)], whereas calcium-independent NOS [inducible NOS (iNOS)] activity remained unchanged. The enhanced cNOS activity was associated with increased myocardial levels of NO(2) and/or NO(3) (NO(x)). Twenty-four hours after ischemic PC was induced, the opposite pattern was observed, i.e., there was a pronounced increase in cytosolic iNOS activity but no change in cNOS activity. The initial burst of ischemia-induced cNOS activity was not affected by pretreatment with the antioxidant N-2-mercaptopropionyl glycine (MPG), the protein kinase C (PKC) inhibitor chelerythrine, or the tyrosine kinase inhibitor lavendustin A, indicating that it is independent of the generation of oxidant species and the activation of PKC and tyrosine kinases. In contrast, the delayed upregulation of iNOS 24 h after PC was prevented by pretreatment with N(omega)-nitro-L-arginine, MPG, or chelerythrine before the PC ischemia, indicating that it is triggered by a signaling mechanism that involves the generation of NO, the formation of oxidant species, and the activation of PKC. Taken together, these results demonstrate that, in conscious animals, ischemic PC elicits a biphasic response in cardiac NOS activity, i. e., an immediate activation of cNOS (most likely eNOS) followed 24 h later by a delayed upregulation of iNOS. To our knowledge, this is the first study to directly measure NOS activity after brief myocardial ischemia in vivo. In conjunction with previous functional studies, the data support a distinctive role of NOS isoforms in late PC, with eNOS serving as the trigger on day 1 and iNOS as the mediator on day 2.
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Affiliation(s)
- Y T Xuan
- Experimental Research Laboratory, Division of Cardiology, University of Louisville, Louisville, Kentucky 40292, USA
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Abstract
The role of ATP-sensitive potassium (K(ATP)) channels in the late phase of ischemic preconditioning (PC) remains unclear. Furthermore, it is unknown whether K(ATP) channels serve as end effectors both for late PC against infarction and against stunning. Thus, in phase I of this study, conscious rabbits underwent a 30-min coronary occlusion (O) followed by 72 h of reperfusion (R) with or without ischemic PC (6 4-min O/4-min R cycles) 24 h earlier. Late PC reduced infarct size approximately 46% versus controls. The K(ATP) channel blocker 5-hydroxydecanoic acid (5-HD), given 5 min before the 30-min O, abrogated the infarct-sparing effect of late PC but did not alter infarct size in non-PC rabbits. In phase II, rabbits underwent six 4-min O/4-min R cycles for 3 consecutive days (days 1, 2, and 3). In controls, the total deficit of systolic wall thickening (WTh) after the sixth reperfusion was reduced by 46% on day 2 and 54% on day 3 compared with day 1, indicating a late PC effect against myocardial stunning. Neither 5-HD nor glibenclamide, given on day 2, abrogated late PC. The K(ATP) channel opener diazoxide, given on day 1, attenuated stunning, and this effect was completely blocked by 5-HD. Thus the same dose of 5-HD that blocked the antistunning effect of diazoxide failed to block the antistunning effects of late PC. Furthermore, when diazoxide was administered in PC rabbits on day 2, myocardial stunning was further attenuated, indicating that diazoxide and late PC have additive anti-stunning effects. We conclude that K(ATP) channels play an essential role in late PC against infarction but not in late PC against stunning, revealing an important pathogenetic difference between these two forms of cardioprotection.
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Affiliation(s)
- H Takano
- Experimental Research Laboratory, Division of Cardiology, University of Louisville, Louisville, Kentucky 40292, USA
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Shinmura K, Tang XL, Wang Y, Xuan YT, Liu SQ, Takano H, Bhatnagar A, Bolli R. Cyclooxygenase-2 mediates the cardioprotective effects of the late phase of ischemic preconditioning in conscious rabbits. Proc Natl Acad Sci U S A 2000; 97:10197-202. [PMID: 10963682 PMCID: PMC27805 DOI: 10.1073/pnas.97.18.10197] [Citation(s) in RCA: 262] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
We examined the role of cyclooxygenase-2 (COX-2) in the late phase of ischemic preconditioning (PC). A total of 176 conscious rabbits were used. Ischemic PC (six cycles of 4-min coronary occlusions/4-min reperfusions) resulted in a rapid increase in myocardial COX-2 mRNA levels (+231 +/- 64% at 1 h; RNase protection assay) followed 24 h later by an increase in COX-2 protein expression (+216 +/- 79%; Western blotting) and in the myocardial content of prostaglandin (PG)E(2) and 6-keto-PGF(1alpha) (+250 +/- 85% and +259 +/- 107%, respectively; enzyme immunoassay). Administration of two unrelated COX-2 selective inhibitors (NS-398 and celecoxib) 24 h after ischemic PC abolished the ischemic PC-induced increase in tissue levels of PGE(2) and 6-keto-PGF(1alpha). The same doses of NS-398 and celecoxib, given 24 h after ischemic PC, completely blocked the cardioprotective effects of late PC against both myocardial stunning and myocardial infarction, indicating that COX-2 activity is necessary for this phenomenon to occur. Neither NS-398 nor celecoxib lowered PGE(2) or 6-keto-PGF(1alpha) levels in the nonischemic region of preconditioned rabbits, indicating that constitutive COX-1 activity was unaffected. Taken together, these results demonstrate that, in conscious rabbits, up-regulation of COX-2 plays an essential role in the cardioprotection afforded by the late phase of ischemic PC. Therefore, this study identifies COX-2 as a cardioprotective protein. The analysis of arachidonic acid metabolites strongly points to PGE(2) and/or PGI(2) as the likely effectors of COX-2-dependent protection. The recognition that COX-2 mediates the antistunning and antiinfarct effects of late PC impels a reassessment of current views regarding this enzyme, which is generally regarded as detrimental.
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Affiliation(s)
- K Shinmura
- The Experimental Research Laboratory, Division of Cardiology, University of Louisville, and Jewish Hospital Heart and Lung Institute, Louisville, KY 40292, USA
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