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Wang CS, Guo CL, Liu Z. [The effect of endotypes on the prognosis of patients with chronic rhinosinusitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:644-648. [PMID: 35610691 DOI: 10.3760/cma.j.cn115330-20210509-00262] [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: 06/15/2023]
Affiliation(s)
- C S Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C L Guo
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Mu XD, Guo CL, Cai YQ, Zhao P, Zeng LJ, Wang N, Xiao LJ, Lin L, Yu LJ, Wei T, Zhang RJ, Wang JQ, Wu XL, Diao XL, Tian X. [Clinical analysis of pulmonary nocardiosis associated with bronchiectasis]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:276-281. [PMID: 35279991 DOI: 10.3760/cma.j.cn112147-20211128-00844] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To better understand the clinical characteristics of pulmonary nocardiosis associated with bronchiectasis. Methods: Patients diagnosed as bronchiectasis complicated with pulmonary nocardiosis in 9 tertiary general hospitals in China were enrolled from March 2016 to March 2020, with the record of general data, imaging performance and pathogen. The literature was reviewed. Results: Totally 17 patients were included. There were 12 females and 5 males. The ages ranged from 45 to 79 years, with an average of (63±9) years. There were 15 nonsmokers and 2 smokers, all of whom with chronic course. The clinical manifestations were mostly cough, expectoration, hemoptysis, fever, and dyspnea. The imaging manifestation was bronchiectasis in both lungs, with the most common involvement in the left lower lung, right middle lobe and left lingual lobe. Sputum cultures were positive in 10 cases, bronchoalveolar lavage fluid (BALF) cultures were positive in 6 cases, and next generation gene sequencings were positive in 4 cases, including 2 cases of Nocardia gelsenkii, 2 cases of Nocardia abscess, 2 cases of Nocardia stellate, 1 case of Nocardia mexicana, 1 case of Nocardia otitis caviae, and 9 cases of undetermined Nocardia. There were 3 cases of Klebsiella pneumoniae, 2 cases of Pseudomonas aeruginosa and 2 cases of Aspergillus. The symptoms and imaging of all patients were improved after anti Nocardia therapy. Conclusions: Bronchiectasis combined with nocardiosis is more common in middle-aged and elderly women without smoking, which is similar to the clinical manifestations of Lady Windermere syndrome. Bronchiectasis often involves the left lower lobe, right middle lobe and left lingual lobe. Nocardia infection might further precipitate the initiation and progression of bronchiectasis.
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Affiliation(s)
- X D Mu
- Department of Respiratory and Critical Care Medicine, Beijing Tsinghua Changgung Hospital, Medical Center, Tsinghua University, Beijing 102218,China
| | - C L Guo
- Department of Respiratory and Critical Care Medicine, Beijing Tsinghua Changgung Hospital, Medical Center, Tsinghua University, Beijing 102218,China
| | - Y Q Cai
- Department of Respiratory and Critical Care Medicine, Beijing Tsinghua Changgung Hospital, Medical Center, Tsinghua University, Beijing 102218,China
| | - P Zhao
- Department of Respiratory and Critical Care Medicine, Beijing Tsinghua Changgung Hospital, Medical Center, Tsinghua University, Beijing 102218,China
| | - L J Zeng
- Department of Respiratory and Critical Care Medicine, Beijing Tsinghua Changgung Hospital, Medical Center, Tsinghua University, Beijing 102218,China
| | - N Wang
- Department of Clinical Laboratory, Beijing Tsinghua Changgung Hospital, Medical Center, Tsinghua University, Beijing 102218,China
| | - L J Xiao
- Department of Clinical Laboratory, Beijing Tsinghua Changgung Hospital, Medical Center, Tsinghua University, Beijing 102218,China
| | - L Lin
- Department of Geriatrics, the First Hospital of Peking University, Beijing 100034,China
| | - L J Yu
- Department of Internal Medicine, People's Hospital of Gucheng County, Gucheng 253800,China
| | - T Wei
- Department of Respiratory Medicine, Beijing Sixth Hospital, Beijing 100007,China
| | - R J Zhang
- Department of Respiratory Medicine, Beijing Sixth Hospital, Beijing 100007,China
| | - J Q Wang
- Department of Respiratory and Critical Care Medicine, Special Medical Center of Strategic Support Force, Beijing 100101,China
| | - X L Wu
- Department of Respiratory Medicine, Ji'an Hospital, Shanghai Oriental Hospital, Shanghai 343000,China
| | - X L Diao
- Department of Pathology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020,China
| | - Xinlun Tian
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Beijing 100005,China
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Wang H, Guo CL, Xiao Q, Liu Z. [Association between plasma inflammatory mediators and histological endotypes of nasal polyps]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:153-160. [PMID: 35196758 DOI: 10.3760/cma.j.cn115330-20210829-00579] [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
Objective: To compare the clinical characteristics and plasma inflammatory markers levels in different endotypes of chronic rhinosinusitis with nasal polyps (CRSwNP), and to explore the plasma biomarkers associated with endotypes of CRSwNP. Methods: A total of 74 CRSwNP patients (male/female: 41/33; average age: 40 years) and 40 control subjects underwent septoplasty in Tongji Hospital from January 2015 to December 2017 were enrolled in this study. The demographic and clinical features of all subjects including age, gender, past history, visual analogue scale (VAS) and CT scores were recorded. Patients with CRSwNP were divided into EoshighNeuhigh, EoshighNeulow, EoslowNeuhigh and EoslowNeulow four endotypes according to the eosinophil (Eos) percentage and neutrophil (Neu) count of nasal polyps tissue. Preoperative blood routine was performed and the levels of 27 biomarkers in plasma were measured by Bio-Plex suspension chip method. The clinical characteristics and the level of serum biomarkers of patients with different endotypes were compared. SPSS 18.0 software was used for statistical analysis. Results: There was no difference in the clinical features including gender ratio, age, course of disease, VAS score, endoscopy and CT score among EoshighNeuhigh, EoshighNeulow, EoslowNeuhigh and EoslowNeulow CRSwNP patients. Compared with EoslowNeuhigh and EoslowNeulow CRSwNP patients, patients with EoshighNeuhigh and EoshighNeulow endotype demonstrated a higher prevalence of atopy, allergic rhinitis and asthma comorbidity, and increased peripheral blood eosinophil absolute count and percentage (all P<0.05). However, there was no significant difference between EoshighNeuhigh and EoshighNeulow CRSwNP. Plasma levels of all 27 mediators including type 1 cytokines (IL-12 and IFN-γ), type 2 cytokines (IL-4, IL-5 and IL-13), type 3 cytokines (IL-17A), pro-inflammatory cytokines (IL-6 and TNF-α) and tissue remodeling-related markers (bFGF, VEGF and PDGF-BB) demonstrated no significant difference among all endotypes of CRSwNP (all P>0.05). Conclusions: Eoshigh and Eoslow CRSwNP patients display significant differences regarding the prevalence of atopy, allergic rhinitis and asthma comorbidity, peripheral blood eosinophil absolute count and percentage, but the clinical characteristics, blood cellular and biological markers can not effectively distinguish four endotypes of CRSwNP. Further studies are warranted to dig out the potential objective, convenient and reliable markers associated with endotypes in patients with CRSwNP.
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Affiliation(s)
- H Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - C L Guo
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Q Xiao
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Z Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
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Li KD, Xu YY, Guo CL, Pu Q, Mei JD, Liu CW, Zhu YK, Liu LX. [Emulation pulmonary nodules localization model:a novel non-invasive localization technique in resection of pulmonary nodules]. Zhonghua Yi Xue Za Zhi 2021; 101:3966-3972. [PMID: 34955000 DOI: 10.3760/cma.j.cn112137-20211020-02321] [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: 02/05/2023]
Abstract
Objective: To explore the accuracy and efficiency of a novel 3D-printed emulation localization model of small pulmonary nodules in lung surgery. Methods: From April 2020 to April 2021, a total of 66 patients were selected in the study, who underwent localization and resection of pulmonary nodules with video-assisted thoracoscopic surgery (VATS) guided by the 3D-printed emulation localization model at Department of Thoracic Surgery, West China Hospital of Sichuan University. There were 13 males and 53 females, aged from 25 to 79 (52.7±11.4) years. Of all patients, 24 (36.4%) had single pulmonary nodule, and 42 (63.6%) had synchronous multiple pulmonary nodules. The chest high-resolution CT image data were utilized for digital reconstruction and 3D printing to make a tailored life-size emulation pulmonary nodules localization model, which was used to navigate real-time intraoperative localization of nodules. Clinical data including operative parameters, localization information, resection types and pathological findings of nodules were analyzed. The pulmonary nodules that doctors planned to resect were categorized into two categories:major nodules and additional nodules, according to their presence of invasion and radiological risk factors. The accuracy of localization and resection efficiency of nodules were evaluated in accordance with the categories of the nodules respectively. Results: On the basis of preoperative evaluation, there were 71 major nodules with median maximal diameter of 0.9 (0.6-1.3) cm, and 77 additional nodules with median maximal diameter of 0.5 (0.4-0.7) cm. All patients underwent VATS surgery, 52 of them (78.8%) were treated with uniportal VATS and 14 (21.2%) with triportal VATS. Among the patients with single nodule, 18 segmentectomies and 6 wedge resections were performed; whereas among the patients with multiple nodules, 5 segmentectomies, 14 wedge resections, and 23 combined pulmonary resections (including 2 cases of lobectomy+segmentectomy, 7 cases of lobectomy+wedge resections, and 14 cases of segmentectomy+wedge resections) were achieved. The median operative time was 93 (45-240) min, and the median resection time for all nodules was 51.4 (6.7-147.0) min. All major nodules were successfully resected and visibly dissected after removal, and all additional nodules were successfully resected with 85.7%(66/77) nodules visibly dissected. The accuracy rate of localization of both types of nodules was 100%. All major nodules were malignant, and the malignancy rate of additional nodules was 21.2%(14/66). Conclusion: This novel 3D-printed emulation localization model of small pulmonary nodules proved to be a non-invasive, accurate and efficient technique. Not only that, it has a unique advantage in localization of synchronous multiple pulmonary nodules.
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Affiliation(s)
- K D Li
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y Y Xu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - C L Guo
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Q Pu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - J D Mei
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - C W Liu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Y K Zhu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - L X Liu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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Abstract
INTRODUCTION Patients with non-valvular atrial fibrillation (NVAF) may be prescribed warfarin or a non-vitamin K oral anticoagulant (NOAC). There is increasing evidence that NOACs are superior to warfarin in terms of renal function preservation. This study aimed to compare renal outcomes in Chinese patients with NVAF between patients receiving NOACs and patients receiving warfarin. METHODS In total, 600 Chinese patients with NVAF receiving oral anticoagulant therapy were retrospectively identified from an administrative database. The renal outcomes (≥30% decline in estimated glomerular filtration rate [eGFR], doubling of serum creatinine, and kidney failure) were compared among four propensity-weighted treatment cohorts (warfarin, n=200; rivaroxaban, n=200; dabigatran, n=100; and apixaban, n=100). RESULTS The mean follow-up period across all groups was 1000 ± 436 days. Compared with warfarin, the three NOACs (pooled for consideration as a single unit) had significantly lower risks of ≥30% decline in eGFR (hazard ratio [HR]=0.339; 95% confidence interval [CI]=0.276-0.417) and doubling of serum creatinine (HR=0.550; 95% CI=0.387-0.782). Dabigatran and rivaroxaban users both had lower risks of ≥30% decline in eGFR (both P<0.001) and doubling of serum creatinine (both P<0.05). Apixaban was only significantly associated with a lower risk of ≥30% decline in eGFR (P<0.001). CONCLUSIONS Compared with warfarin, NOACs may be associated with a significantly lower risk of decline in renal function among Chinese patients with NVAF.
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Affiliation(s)
- T S Shahzada
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong
| | - C L Guo
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong
| | - A P W Lee
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong
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Guo CL, Mei JD, Jia YL, Gan FY, Tang YD, Liu CW, Zeng Z, Yang ZY, Deng SY, Sun X, Liu LX. Impact of thymosin α1 as an immunomodulatory therapy on long-term survival of non-small cell lung cancer patients after R0 resection: a propensity score-matched analysis. Chin Med J (Engl) 2021; 134:2700-2709. [PMID: 34732663 PMCID: PMC8631386 DOI: 10.1097/cm9.0000000000001819] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND There is limited information about thymosin α1 (Tα1) as adjuvant immunomodulatory therapy, either used alone or combined with other treatments, in patients with non-small cell lung cancer (NSCLC). This study aimed to evaluate the effect of adjuvant Tα1 treatment on long-term survival in margin-free (R0)-resected stage IA-IIIA NSCLC patients. METHODS A total of 5746 patients with pathologic stage IA-IIIA NSCLC who underwent R0 resection were included. The patients were divided into the Tα1 group and the control group according to whether they received Tα1 or not. A propensity score matching (PSM) analysis was performed to reduce bias, resulting in 1027 pairs of patients. RESULTS After PSM, the baseline clinicopathological characteristics were similar between the two groups. The 5-year disease-free survival (DFS) and overall survival (OS) rates were significantly higher in the Tα1 group compared with the control group. The multivariable analysis showed that Tα1 treatment was independently associated with an improved prognosis. A longer duration of Tα1 treatment was associated with improved OS and DFS. The subgroup analyses showed that Tα1 therapy could improve the DFS and/or OS in all subgroups of age, sex, Charlson Comorbidity Index (CCI), smoking status, and pathological tumor-node-metastasis (TNM) stage, especially for patients with non-squamous cell NSCLC and without targeted therapy. CONCLUSION Tα1 as adjuvant immunomodulatory therapy can significantly improve DFS and OS in patients with NSCLC after R0 resection, except for patients with squamous cell carcinoma and those receiving targeted therapy. The duration of Tα1 treatment is recommended to be >24 months.
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Affiliation(s)
- Cheng-Lin Guo
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Chengdu, Sichuan 610041, China
| | - Jian-Dong Mei
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Chengdu, Sichuan 610041, China
| | - Yu-Long Jia
- Chinese Evidence-Based Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Fan-Yi Gan
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Chengdu, Sichuan 610041, China
| | - Yu-Dong Tang
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Chengdu, Sichuan 610041, China
| | - Cheng-Wu Liu
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Chengdu, Sichuan 610041, China
| | - Zhen Zeng
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Chengdu, Sichuan 610041, China
| | - Zhen-Yu Yang
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Chengdu, Sichuan 610041, China
| | - Sen-Yi Deng
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Chengdu, Sichuan 610041, China
| | - Xing Sun
- Chinese Evidence-Based Medicine Centre, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
| | - Lun-Xu Liu
- Department of Thoracic Surgery and Institute of Thoracic Oncology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China
- Western China Collaborative Innovation Center for Early Diagnosis and Multidisciplinary Therapy of Lung Cancer, Chengdu, Sichuan 610041, China
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Duan K, Zhao YJ, Li ZY, Zou XH, Yang J, Guo CL, Chen SY, Yang XR, Gao QH. A Strategy for the Production and Molecular Validation of Agrobacterium-Mediated Intragenic Octoploid Strawberry. Plants 2021; 10:plants10112229. [PMID: 34834592 PMCID: PMC8622968 DOI: 10.3390/plants10112229] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/16/2021] [Accepted: 10/16/2021] [Indexed: 11/16/2022]
Abstract
Intragenesis is an all-native engineering technology for crop improvement. Using an intragenic strategy to bring genes from wild species to cultivated strawberry could expand the genetic variability. A robust regeneration protocol was developed for the strawberry cv. ‘Shanghai Angel’ by optimizing the dose of Thidiazuron and identifying the most suitable explants. The expression cassette was assembled with all DNA fragments from F. vesca, harboring a sugar transporter gene FvSTP8 driven by a fruit-specific FvKnox promoter. Transformed strawberry was developed through an Agrobacterium-mediated strategy without any selectable markers. Other than PCR selection, probe-based duplex droplet digital PCR (ddPCR) was performed to determine the T-DNA insert. Four independent transformed shoots were obtained with a maximum of 5.3% efficiency. Two lines were confirmed to be chimeras, while the other two were complete transformants with six and 11 copies of the intragene, respectively. The presence of a vector backbone beyond the T-DNA in these transformants indicated that intragenic strawberries were not obtained. The current work optimized the procedures for producing transformed strawberry without antibiotic selection, and accurately determined the insertion copies by ddPCR in the strawberry genome for the first time. These strategies might be promising for the engineering of ‘Shanghai Angel’ and other cultivars to improve agronomic traits.
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Affiliation(s)
- Ke Duan
- Shanghai Key Laboratory of Protected Horticultural Technology, Forestry and Fruit Tree Research Institute, Shanghai Academy of Agricultural Sciences (SAAS), Shanghai 201403, China; (X.-H.Z.); (J.Y.); (X.-R.Y.)
- Correspondence: (K.D.); (Q.-H.G.)
| | - Ying-Jie Zhao
- Lanzhou New Area Academy of Modern Agricultural Sciences, Lanzhou 730300, China;
| | - Zi-Yi Li
- Ecological Technique and Engineering College, Shanghai Institute of Technology, Shanghai 201418, China;
| | - Xiao-Hua Zou
- Shanghai Key Laboratory of Protected Horticultural Technology, Forestry and Fruit Tree Research Institute, Shanghai Academy of Agricultural Sciences (SAAS), Shanghai 201403, China; (X.-H.Z.); (J.Y.); (X.-R.Y.)
| | - Jing Yang
- Shanghai Key Laboratory of Protected Horticultural Technology, Forestry and Fruit Tree Research Institute, Shanghai Academy of Agricultural Sciences (SAAS), Shanghai 201403, China; (X.-H.Z.); (J.Y.); (X.-R.Y.)
| | - Cheng-Lin Guo
- Hangzhou Woosen Biotechnology Co., Ltd., Hangzhou 310012, China;
| | - Si-Yu Chen
- College of Food Science, Shanghai Ocean University, Shanghai 201306, China;
| | - Xiu-Rong Yang
- Shanghai Key Laboratory of Protected Horticultural Technology, Forestry and Fruit Tree Research Institute, Shanghai Academy of Agricultural Sciences (SAAS), Shanghai 201403, China; (X.-H.Z.); (J.Y.); (X.-R.Y.)
| | - Qing-Hua Gao
- Shanghai Key Laboratory of Protected Horticultural Technology, Forestry and Fruit Tree Research Institute, Shanghai Academy of Agricultural Sciences (SAAS), Shanghai 201403, China; (X.-H.Z.); (J.Y.); (X.-R.Y.)
- Correspondence: (K.D.); (Q.-H.G.)
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Guan FX, Hu X, Hu HJ, Ouyang YF, Wang LS, Li Y, Yang C, Guo CL, Wang HJ, Zhang B. [Multi-level scanning of environmental factors of body mass index of children and adolescents aged 7-17 years in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1790-1796. [PMID: 34814613 DOI: 10.3760/cma.j.cn112338-20210303-00168] [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: 06/13/2023]
Abstract
Objective: To investigate the influence of environmental factors on body mass index of children and adolescents in China. Methods: Using data from the China Health and Nutrition Survey, the research object to 7 - 17 years old children and adolescents who participated in 2000, 2006, 2011, and 2015 round of survey with complete data, a total of 6 626 children and adolescents (male 3 473, female 3 153) were investigated under univariate analysis for each environmental factor variable before using Partial Least Square Regression fitting a linear model for further screening. Finally, we fitted a three-level linear mixed-effects model distinct by urban and rural area for analysis. Results: The three-level null model, log likelihood=-17 034.68, χ2=483.06, P<0.001. Intern-class correlation coefficient (ICC) showed that community-level was 9.97%, and both community and individual were 39.38%. The three-level model also showed that urban model's urbanization index (β=-0.05, 95%CI: -0.09--0.01, P<0.05), the park location (β=-0.88, 95%CI: -1.72 - -0.04, P<0.05), 15 - 17 age group (β=-1.04, 95%CI:-1.78 - -0.30, P<0.05) were negatively correlated with BMI. The distance to the gym (β=0.12, 95%CI: 0.02 - 0.22, P<0.05), the number of home TV sets (β=0.50, 95%CI: 0.08 - 0.92, P<0.05) and the frequency of parents' alarm of fiction TV program contents (β=1.85, 95%CI: 0.70 - 3.00, P<0.05) were correlated with BMI. Rural urbanization index (β=-0.04, 95%CI:-0.07 - -0.01, P<0.05). Rural per capita income (β=-7.29e-4, 95%CI:-1.00e-3 - -6.77e-5, P<0.05), parents' restricted frequency of watching TV (β=-1.29, 95%CI:-2.36 - -0.21, P<0.05), adipo-energy ratio (β=-0.03, 95%CI:-0.06 - -1.00e-3, P<0.05) were negatively correlated with the BMI. Factors as the frequency of parents' alarm of fiction TV program contents (β=3.01, 95%CI: 0.03 - 6.00, P<0.05), the survey time was 2015 (β=4.83, 95%CI: 1.96 - 7.69, P<0.05) were correlated with BMI. Conclusions: Environmental factors could indirectly influence the change of BMI of children and adolescents to different degrees and various aspects. Urbanization index and rural per capita income had a slight protective effect on increasing BMI of children and adolescents. At the community level, attention should be paid to the setting of activity places around the living environment of children and adolescents. Family members should also guide their children and adolescents to develop nice behavior in watching TV.
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Affiliation(s)
- F X Guan
- National Institute for Nutrition and Health,Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - X Hu
- National Institute for Nutrition and Health,Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - H J Hu
- National Institute for Nutrition and Health,Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Y F Ouyang
- National Institute for Nutrition and Health,Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - L S Wang
- National Institute for Nutrition and Health,Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Y Li
- George Institute for Global Health (Australia) Beijing Representative Office, Beijing 100600, China
| | - C Yang
- Capital Medical University, Beijing 100069, China
| | - C L Guo
- George Institute for Global Health (Australia) Beijing Representative Office, Beijing 100600, China Beijing Institute of Nutrition and Resources, Beijing 100069, China
| | - H J Wang
- National Institute for Nutrition and Health,Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - B Zhang
- National Institute for Nutrition and Health,Chinese Center for Disease Control and Prevention, Beijing 100050, China
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Guo CL, Liao B, Liu Z. [Patient-reported outcome measures for adult patients with chronic rhinosinusitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:1111-1117. [PMID: 34666477 DOI: 10.3760/cma.j.cn115330-20200921-00761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- C L Guo
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - B Liao
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Lee S, Zhou J, Guo CL, Wu WKK, Wong WT, Liu T, Wong ICK, Jeevaratnam K, Zhang Q, Tse G. Risk stratification score for acute myocardial infarction and sudden cardiac death in type 2 diabetes mellitus. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.459] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Acute myocardial infarction (AMI) and sudden cardiac death (SCD) are major cardiovascular adverse outcomes in patients with type 2 diabetic mellitus. Although there are many risk scores on composite outcomes of major cardiovascular adverse outcomes or cardiovascular mortality for diabetic patients, these existing scores did not account for the difference in pathogenesis and prognosis between acute coronary syndrome and lethal ventricular arrhythmias. Furthermore, recent studies reported that HbA1c and lipid levels, which were often accounted for in these risk scores, have J/U-shaped relationships with adverse outcomes.
Purpose
The present study aims to evaluate the application of incorporating non-linear J/U-shaped relationships between mean HbA1c and cholesterol levels into risk scores for predicting for AMI and non-AMI related SCD respectively, amongst type 2 diabetes mellitus patients.
Methods
This was a territory-wide cohort study of patients with type 2 diabetes mellitus above the age 40 and free from prior AMI and SCD, with or without prescriptions of anti-diabetic agents between January 1st, 2009 to December 31st, 2009 at government-funded hospitals and clinics in Hong Kong. Risk scores were developed for predicting incident AMI and non-AMI related SCD. The performance of conditional inference survival forest (CISF) model compared to that of random survival forests (RSF) model and multivariate Cox model.
Results
This study included 261308 patients (age = 66.0 ± 11.8 years old, male = 47.6%, follow-up duration = 3552 ± 1201 days, diabetes duration = 4.77 ± 2.29 years). Mean HbA1c and high-density lipoprotein-cholesterol (HDL-C) were significant predictors of AMI under multivariate Cox regression and were linearly associated with AMI. Mean HbA1c and total cholesterol were significant multivariate predictors with a J-shaped relationship with non-AMI related SCD. The AMI and SCD risk scores had an area-under-the-curve (AUC) of 0.666 (95% confidence interval (CI)= [0.662, 0.669]) and 0.677 (95% CI= [0.673, 0.682]), respectively. CISF significantly improves prediction performance of both outcomes compared to RSF and multivariate Cox models.
Conclusions
A holistic combination of demographic, clinical, and laboratory indices can be used for the risk stratification of type 2 diabetic patients against AMI and SCD.
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Affiliation(s)
- S Lee
- The Chinese University of Hong Kong, Shatin, Hong Kong
| | - J Zhou
- City University of Hong Kong, Hong Kong, China
| | - CL Guo
- The Chinese University of Hong Kong, Shatin, Hong Kong
| | - WKK Wu
- The Chinese University of Hong Kong, Shatin, Hong Kong
| | - WT Wong
- The Chinese University of Hong Kong, Shatin, Hong Kong
| | - T Liu
- 2nd Hospital of Tianjin Medical University, Tianjin, China
| | - ICK Wong
- The University of Hong Kong, Hong Kong, China
| | - K Jeevaratnam
- University of Surrey, Faculty of Health and Medical Sciences, Guildford, United Kingdom of Great Britain & Northern Ireland
| | - Q Zhang
- City University of Hong Kong, Hong Kong, China
| | - G Tse
- University of Surrey, Faculty of Health and Medical Sciences, Guildford, United Kingdom of Great Britain & Northern Ireland
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11
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Guo CL, Luo HX, Wang C, Qu XF, Yang B, Belinson JL, Du H, Wu RF. [Performance of vaginal self-sampling high-risk HPV genotyping as primary and combining cytology or viral load as secondary in cervical cancer screening]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:271-279. [PMID: 33902239 DOI: 10.3760/cma.j.cn112141-20200824-00357] [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 evaluate the efficacy of high-risk HPV (HR-HPV) genotyping with vaginal self-sampling in primary screening and combining cytology or viral load for HR-HPV positive as secondary screening strategies. Methods: The data referring to HR-HPV genotyping of self-collected sample with mass array matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF-MS), HR-HPV viral load of physician-collected sample with hybrid capture Ⅱ (HC-Ⅱ), liquid-based cytology and histology of 8 556 women were from Shenzhen cervical cancer screening trial Ⅱ (SHENCCAST-Ⅱ) conducted between April 2009 and April 2010. The data were reanalyzed to determine the sensitivity and specificity to cervical intraepithelial neoplasia (CIN) of grade 2 or worse (CIN Ⅱ+), CIN of grade 3 or worse (CIN Ⅲ+) when HR-HPV genotyping combining with colposcopy as primary screening strategy based on varied HR-HPV subtype (strategy 1, including 5 sub-strategies: 1a: HPV 16/18 positive; 1b: HPV 16/18/58 positive; 1c: HPV 16/18/58/31/33 positive; 1d: HPV 16/18/58/31/33/52 positive; 1e: any HR-HPV positive). The data were also compared to determine the efficacy of cytology (strategy 2, including 5 sub-strategies: 2a, 2b, 2c, 2d, 2e) or HR-HPV viral load (strategy 3, including 4 sub-strategies: 3a, 3b, 3c, 3d) of physician-collected sample as a triage with HR-HPV genotyping for self-sampling HR-HPV positives. Results: (1) The HR-HPV positive rate was 13.77% (1 178/8 556) in the self-collected samples of 8 556 pregnant women. Of them,the prevalences of HPV 16/18, HPV 16/18/58, HPV 16/18/58/31/33 and HPV 16/18/58/31/33/52 were 3.16% (270/8 556), 5.14% (440/8 556), 6.66% (570/8 556) and 9.81% (839/8 556), respectively. The HR-HPV viral load ≥10 relative light units/control (RLU/CO) was 8.87%(759/ 8 556), while cytological results ≥atypical squamous cell of undetermined signification (ASCUS) were 12.05% (1 031/8 556). (2) The strategy 1e had the highest sensitivities for CIN Ⅱ+, CIN Ⅲ+ which were 92.70% and 94.33%,respectively,among 14 sub-strategies,while the lowest specificity and positive predictive value (PPV). Meanwhile,the required colposcopy referral rates were much higher than other 13 sub-strategies (13.77%). The other 4 sub-strategies of strategy 1 (1a, 1b, 1c, 1d), strategy 1a had the highest specificities for CIN Ⅱ+ and CIN Ⅲ+ (97.92%, 97.69%, respectively), while 1d had the highest sensitivities for CIN Ⅱ+ and CIN Ⅲ+ (88.41%, 92.20%, respectively). (3) Both strategies of referring self-sampling HPV 16/18 positives for immediate colposcopy followed by triage physician-collected sample cytology (≥ASCUS) or viral load (≥10 RLU/CO) for non-HPV 16/18 positives had significantly higher sensitivity and specificity for CIN Ⅱ, CIN Ⅲ+, as well as lower referral rates (strategy 2a and 3a). Additionally, based on these two secondary screening strategies, cumulatively using the other four HR-HPV (HPV 58, 31, 33 and 52) positives as triage for immediate colposcopy showed an enhanced sensitivity. Conclusions: Primary HR-HPV cervical cancer screening strategy based on self-sampling with triage of cytology (≥ASCUS) or viral load (≥10 RUL/CO) provides a good balance among sensitivity, specificity for CIN Ⅱ+ and CIN Ⅲ+ and the number of tests required, referral rates. The efficacy of HR-HPV genotyping combining cytology or viral load secondary screening strategies will have a spiral escalation when HPV 58, 31, 33, 52 are included.
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Affiliation(s)
- C L Guo
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Institute of Obstetrics and Gynecology, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynecological Diseases, Shenzhen 518000, China
| | - H X Luo
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing 100044, China
| | - C Wang
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Institute of Obstetrics and Gynecology, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynecological Diseases, Shenzhen 518000, China
| | - X F Qu
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Institute of Obstetrics and Gynecology, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynecological Diseases, Shenzhen 518000, China
| | - Bin Yang
- Preventive Oncology International, Inc, Shaker Heights, USA and Cleveland Clinic, Women's Health Institute, Cleveland, OH, USA, 44109
| | - J L Belinson
- Preventive Oncology International, Inc, Shaker Heights, USA and Cleveland Clinic, Women's Health Institute, Cleveland, OH, USA, 44109
| | - H Du
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Institute of Obstetrics and Gynecology, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynecological Diseases, Shenzhen 518000, China
| | - R F Wu
- Department of Obstetrics and Gynecology, Peking University Shenzhen Hospital, Institute of Obstetrics and Gynecology, Shenzhen Peking University-Hong Kong University of Science and Technology Medical Center, Shenzhen Key Laboratory on Technology for Early Diagnosis of Major Gynecological Diseases, Shenzhen 518000, China
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12
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Zhao JD, Li Y, Sun M, Yu CJ, Li JY, Wang SH, Yang D, Guo CL, Du X, Zhang WJ, Cheng RD, Diao XC, Fang ZH. Effect of berberine on hyperglycaemia and gut microbiota composition in type 2 diabetic Goto-Kakizaki rats. World J Gastroenterol 2021; 27:708-724. [PMID: 33716449 PMCID: PMC7934002 DOI: 10.3748/wjg.v27.i8.708] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 12/17/2020] [Accepted: 01/13/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND A recent investigation showed that the prevalence of type 2 diabetes mellitus (T2DM) is 12.8% among individuals of Han ethnicity. Gut microbiota has been reported to play a central role in T2DM. Goto-Kakizaki (GK) rats show differences in gut microbiota compared to non-diabetic rats. Previous studies have indicated that berberine could be successfully used to manage T2DM. We sought to understand its hypoglycaemic effect and role in the regulation of the gut microbiota.
AIM To determine whether berberine can regulate glucose metabolism in GK rats via the gut microbiota.
METHODS GK rats were acclimatized for 1 wk. The GK rats were randomly divided into three groups and administered saline (Mo), metformin (Me), or berberine (Be). The observation time was 8 wk, and weight, fasting blood glucose (FBG), insulin, and glucagon-like peptide-1 (GLP-1) were measured. Pancreatic tissue was observed for pathological changes. Additionally, we sequenced the 16S rRNA V3-V4 region of the gut microbiota and analysed the structure.
RESULTS Compared with the Mo group, the Me and Be groups displayed significant differences in FBG (P < 0.01) and GLP-1 (P < 0.05). A significant decrease in weight and homeostatic model assessment-insulin resistance was noted in the Be group compared with those in the Me group (P < 0.01). The pancreatic islets of the Me- and Be-treated rats showed improvement in number, shape, and necrosis compared with those of Mo-treated rats. A total of 580 operational taxonomic units were obtained in the three groups. Compared to the Mo group, the Me and Be groups showed a shift in the structure of the gut microbiota. Correlation analysis indicated that FBG was strongly positively correlated with Clostridia_UCG-014 (P < 0.01) and negatively correlated with Allobaculum (P < 0.01). Body weight showed a positive correlation with Desulfovibrionaceae (P < 0.01) and a negative correlation with Akkermansia (P < 0.01). Importantly, our results demonstrated that Me and Be could significantly decrease Bacteroidetes (P < 0.01) and the Bacteroidetes/Firmicutes ratio (P < 0.01). Furthermore, Muribaculaceae (P < 0.01; P < 0.05) was significantly decreased in the Me and Be groups, and Allobaculum (P < 0.01) was significantly increased.
CONCLUSION Berberine has a substantial effect in improving metabolic parameters and modulating the gut microbiota composition in T2DM rats.
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Affiliation(s)
- Jin-Dong Zhao
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Yan Li
- Department of Infectious Diseases, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Min Sun
- School of Life Sciences, Anhui University, Hefei 230039, Anhui Province, China
| | - Chan-Juan Yu
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Jia-Yun Li
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Si-Hai Wang
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Di Yang
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Cheng-Lin Guo
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Xue Du
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Wen-Jin Zhang
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Ruo-Dong Cheng
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Xiao-Chuan Diao
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
| | - Zhao-Hui Fang
- Department of Endocrinology, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei 230031, Anhui Province, China
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13
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Abstract
An efficient HER catalyst was prepared by doping graphene and wrapping ruthenium nanoparticles, and its performance is comparable to that of commercial Pt/C.
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Affiliation(s)
- Hai-Lang Jia
- School of Chemical and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, P. R. China
| | - Cheng-Lin Guo
- CMCU Engineering Co., Ltd, Chongqing, 400030, P. R. China
| | - Rui-Xin Chen
- School of Chemical and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, P. R. China
| | - Jiao Zhao
- School of Chemical and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, P. R. China
| | - Rui Liu
- School of Chemical and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, P. R. China
| | - Ming-Yun Guan
- School of Chemical and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, P. R. China
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14
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Wang YB, Li YH, Li QM, Xie WT, Guo CL, Guo JQ, Deng RG, Zhang GP. Development of a blocking immunoperoxidase monolayer assay for differentiation between pseudorabies virus-infected and vaccinated animalss. Pol J Vet Sci 2020; 22:717-723. [PMID: 31867929 DOI: 10.24425/pjvs.2019.129985] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Pseudorabies (PR) outbreaks have devastated many swine farms in several parts of China since late 2011. The outbreak-associated pseudorabies virus (PRV) variant strains exhibited some typical amino acid changes in glycoprotein E (gE), a diagnostic antigen used for discriminating between PRV-infected and vaccinated animals (DIVA). To counteract the potential impact of epitope variations on current serological diagnostics of PRV, we produced monoclonal antibodies (mAbs) against gE protein of one representative PRV variant strain and developed a blocking immunoperoxidase monolayer assay (b-IPMA) for DIVA. The b-IPMA was based on the inhibition of binding between PRV-infected cells and mAb by PRV-specific antibodies present in clinical swine sera and was validated by comparison with a commercial PRV gpI Antibody Test Kit (IDEXX Laboratories, USA). The diagnostic sensitivity, diagnostic specificity and agreement were determined to be 99.25%, 98.18% and 99.02% respectively upon testing 509 serum samples. b-IPMA detected only PRV-specific antibodies and showed no cross- -reactivity with antibodies elicited by gE-deleted vaccine or other common swine pathogens. Thus, b-IPMA has the potential to be used for high-throughput screening of PRV-infected animals in veterinary clinics.
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Affiliation(s)
- Y B Wang
- School of Public Health, Xinxiang Medical University, Xinxiang 453003, P.R. China.,Henan Baiao Bioengineering Limited Company, Zhengzhou 450002, P.R. China.,Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, P.R. China
| | - Y H Li
- Henan Baiao Bioengineering Limited Company, Zhengzhou 450002, P.R. China.,Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, P.R. China
| | - Q M Li
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, P.R. China
| | - W T Xie
- Henan Baiao Bioengineering Limited Company, Zhengzhou 450002, P.R. China.,Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, P.R. China
| | - C L Guo
- Henan Baiao Bioengineering Limited Company, Zhengzhou 450002, P.R. China.,Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, P.R. China
| | - J Q Guo
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, P.R. China
| | - R G Deng
- Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, P.R. China
| | - G P Zhang
- Henan Baiao Bioengineering Limited Company, Zhengzhou 450002, P.R. China.,Key Laboratory of Animal Immunology of the Ministry of Agriculture, Henan Provincial Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, P.R. China.,College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, P.R. China.,Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonosis, Yangzhou University, Yangzhou 225009, P.R. China
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15
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Gai XY, Zhang LJ, Liang Y, Guo CL, Mairitifei A, Li WX, Chang C, Chen YH, Yao WZ, Zhang X. [Metabolomics analysis identifies serum glycerophospholipid expression: a comparison between men and women with asthma]. Zhonghua Yi Xue Za Zhi 2019; 98:3568-3574. [PMID: 30486571 DOI: 10.3760/cma.j.issn.0376-2491.2018.44.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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 determine whether asthma has a different metabolic glycerophospholipid profile in serum between women and men with asthma. Methods: Fifty-one outpatients with asthma (17 men, 34 women) were enrolled from Peking University Third Hospital from Jan 2015 to Dec 2015. Clinical data such as gender, age, body mass index, pulmonary function were recorded. Glycerophospholipid profile were measured in serum using liquid chromatography-mass spectrometry (LC-MS)-based metabolomics analysis. Projections to latent structures-discriminate analysis (PLS-DA) was used to compare the differences of glycerophospholipid level between men and women. Receiver Operating Characteristic (ROC) Curve was established from men and women. Results: Significantly different glycerophospholipid level were confirmed quantitatively between women and men. Levels of phosphatidylethanolamine (PE), phosphatidylcholine acetal phospholipid (PCP), lysophosphatidyl ethanolamine (LPE), alkyl phosphatidylethanolamine [PE(O)] were significantly higher in women relative to men [PE36: 2, PCP32: 1, LPE18: 0, and PE(O40: 7) was 0.050 (0.037, 0.079) vs 0.043 (0.000, 0.071), 0.057 (0.035, 0.727) vs 0.034 (0.000, 0.057), 0.233 (0.129, 0.390) vs 0.126 (0.075, 0.212), 0.007(0.000, 0.041) vs 0.000 (0.000, 0.000), respectively, all P<0.05). Levels of lysophosphatidylcholine (LPC), lysophosphatidylserine (LPS), and lysophosphatidylphosphatidylcholine [LPC(O)] were significantly lower in women compared to men [Levels of LPS22: 6, LPS20: 4, and LPS18: 1 were 0.000(0.000, 0.003) vs 0.009(0.000, 0.012), 0.015(0.010, 0.026) vs 0.047(0.022, 0.081), 0.008(0.003, 0.179) vs 0.020(0.008, 0.040), respectively, all P<0.05]. Area Under ROC Curve (AUC) of LPS (LPS20: 4) was 0.814. Conclusions: Glycerophospholipid levels in serum are significantly different between women and men asthmatic patients. LPS may contribute to gender based differences in asthmatics.
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Affiliation(s)
- X Y Gai
- Department of Pulmonary and Critical Care Medicine, Peking University Third Hospital, Beijing 100191, China
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16
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Wang LS, Zhang B, Wang HJ, Guo CL, Zhang YP, Zhang JG, Du WW, Wang ZH. [Analysis on cardio-metabolic related risk factors in farmers of 15 provinces in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:1239-1243. [PMID: 30293317 DOI: 10.3760/cma.j.issn.0254-6450.2018.09.018] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the prevalence and co-prevalence of cardio-metabolic related risk factors in farmers aged ≥18 years in China, to explore the influence of population economic factors on them. Methods: A total of 3 367 farmers, including fishermen or hunters, aged ≥18 years were selected as study subjects from the database of Nutritional Status and Health Transition of Chinese Residents Project in 2015. Basic information (age, gender), data on anthropometric (body height, weight and waist size), blood biochemical and socioeconomic (occupation, income, education level and living area) were included. According to the definition of the metabolic syndrome released by the International Diabetes Federation (IDF) in 2005, five cardio-metabolic risk factors appeared as central obesity, increased triglycerides, decreased HDL-C, increased blood pressure and increased plasma glucose. Co-prevalence of risk factors was defined as detecting 2 or more risk factors in a person at the same time. Multivariate logistic regression model was used to analyze the relationship between socioeconomic factors and metabolic risk factors. Results: In 3 367 framers of 15 provinces (autonomous region and municipality), the prevalence rates of central obesity, increased blood pressure, increased plasma glucose, increased triglycerides and decreased HDL-C were 51.8%, 59.0%, 17.0%, 25.5% and 38.7% respectively. Multivariate logistic regression analysis showed that the risks for central obesity (OR=3.69, 95%CI: 3.17-4.28) and decreased HDL-C (OR=3.28, 95%CI: 2.81- 3.82) were higher in women than in men, and the risks for increased blood pressure (OR=0.73, 95%CI: 0.63-0.84), increased blood glucose (OR=0.80, 95%CI: 0.67-0.97) were lower in women than in men. Age was positively correlated with the prevalence or co-prevalence of metabolic risk factors (trend P<0.05). Framers in western China had obviously lower risk for central obesity compared with farmers in central China. No significant correlation was found between farmers' income level, education level or the prevalence of metabolic risk factors. Conclusion: In 15 provinces of China, the prevalence of at least 1 kind of cardio-metabolic risk factor was found in 85.5% of the farmers, and the co-prevalence of cardio-metabolic risk factor was found in 60% of farmers. The prevalence and co-prevalence of cardio-metabolic risk factors were significantly associated with age and gender. It is suggested to take targeted nutritional intervention and health education according to the distribution characteristics of prevalence and co-prevalence of cardio-metabolic factors and strengthen the early prevention and control programs of the diseases.
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Affiliation(s)
- L S Wang
- National Institute for Nutrition and Health, Chinese Center for Diseases Control and Prevention, Beijing 100050, China
| | - B Zhang
- National Institute for Nutrition and Health, Chinese Center for Diseases Control and Prevention, Beijing 100050, China
| | - H J Wang
- National Institute for Nutrition and Health, Chinese Center for Diseases Control and Prevention, Beijing 100050, China
| | - C L Guo
- National Institute for Nutrition and Health, Chinese Center for Diseases Control and Prevention, Beijing 100050, China
| | - Y P Zhang
- Chinese Center for Diseases Control and Prevention, Beijing 102206, China
| | - J G Zhang
- National Institute for Nutrition and Health, Chinese Center for Diseases Control and Prevention, Beijing 100050, China
| | - W W Du
- National Institute for Nutrition and Health, Chinese Center for Diseases Control and Prevention, Beijing 100050, China
| | - Z H Wang
- National Institute for Nutrition and Health, Chinese Center for Diseases Control and Prevention, Beijing 100050, China
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17
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Zhao DT, Guo CL, Yan HP, Liao HY, Liu YM, Zhang HP, An LS, Huang CY, Han Y, Zhao Y. [Characteristics of IgH-CDR3 repertoire of peripheral B cells in a patient with primary biliary cholangitis: a preliminary study using high-throughput sequencing]. Zhonghua Gan Zang Bing Za Zhi 2017; 25:847-851. [PMID: 29325279 DOI: 10.3760/cma.j.issn.1007-3418.2017.11.009] [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 analyze the characteristics of immunoglobulin heavy chain complementarity-determining region (IgH-CDR3) repertoire of peripheral B cells in a patient with primary biliary cholangitis (PBC) and to investigate the diversity of the immune system. Methods: Arm-PCR was used to amplify the IgH-CDR3 region of circulating B cells isolated from a PBC patient, and high-throughput sequencing was used to analyze the amplified product. The characteristics of immune repertoire were analyzed by bioinformatics. Results: In total, 329219 sequence reads were generated from the sample, with 325540 total CDR3 sequences and 72774 distinct CDR3 sequences, and the D50 of IGH-CDR3 was 7.7. The dominant CDR3 length of the sample was 45 nt (9.6%); the N addition with the highest frequency ranged from 13 to 14 nt (5.25%); the J trimming with the highest frequency was 0 nt (12.7%); the three most frequent V alleles were V4-59 (9.5%), V3-23 (8.1%), and V1-69 (6.4%). Conclusion: The diversity of IgH-CDR3 repertoire is relatively low in this patient with PBC, with several B-cell clonal expansions. The specificity needs to be further verified after increasing the sample size.
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Affiliation(s)
- D T Zhao
- Clinical Research Center for Autoimmune Liver Disease & Clinical Laboratory Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - C L Guo
- National Research Institute for Family Planning, Beijing 100081, China
| | - H P Yan
- Clinical Research Center for Autoimmune Liver Disease & Clinical Laboratory Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - H Y Liao
- Department of Liver Disease Immunology, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - Y M Liu
- Department of Liver Disease Immunology, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - H P Zhang
- Clinical Research Center for Autoimmune Liver Disease & Clinical Laboratory Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - L S An
- National Research Institute for Family Planning, Beijing 100081, China
| | - C Y Huang
- Department of Liver Disease Immunology, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - Y Han
- Department of Liver Disease Immunology, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - Y Zhao
- Clinical Research Center for Autoimmune Liver Disease & Clinical Laboratory Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
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Liao B, Wang H, Guo CL, Liu Z. [Sinonasal disease related to IgG4: one case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:777-778. [PMID: 29050098 DOI: 10.3760/cma.j.issn.1673-0860.2017.10.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- B Liao
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C L Guo
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Wei SY, Zhao KJ, Guo CL, Mei JD, Pu Q, Ma L, Che GW, Chen LQ, Wu Z, Wang Y, Kou YL, Lin YD, Li WM, Liu LX. [Diagnosis and Surgical Treatment of Lung Ground-glass Opacities:a Review of 663 Cases]. Sichuan Da Xue Xue Bao Yi Xue Ban 2017; 48:359-362. [PMID: 28616906] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVES To retrospectively investigate the clinical characteristics, surgical treatments of the patients with lung ground-glass opacities (GGO). METHODS All the patients, who underwent surgical resection of GGO in our department from Jan. 2013 to Dec. 2016 were retrospectively reviewed. The clinicpathological features were analyzed. RESULTS A total of 663 patients were included in this study. The rate of malignancy was 92.6% (614/663). The diameter of GGO in benign group [(0.8±0.2) cm] was significant smaller than that in malignant group [ (1.5±0.8) cm](P<0.001). The rate of irregular margin in malignant group was far higher than that in benign group (93.8% vs. 20.4%, P<0.001), but other CT signs such as vacuole sign, plural retraction, speculation and lobulation did not show significant difference between the two groups. A total of 652 (98.3%) cases were resected by video-assisted thoracoscopic surgery (VATS), and only 11 (1.7%) cases were resected by thoracotomy. A total of 336 (50.7%) patients underwent lobectomy, 226 (34.1%) underwent segmentectomy and 101 (15.2%) undewent wedge resection. The rate of surgery-related complications was 9.0% (60/663), and one (0.2%) patient died. CONCLUSIONS With careful selection of GGO by experienced surgeons, the rate of malignancy is very high. Surgical resection may be recommended for highly suspected malignant cases. Sublobar resection or lobcotomy by VATS can achieve good treatment effect.
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Affiliation(s)
- Shi-You Wei
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ke-Jia Zhao
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Cheng-Lin Guo
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jian-Dong Mei
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiang Pu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lin Ma
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Guo-Wei Che
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Long-Qi Chen
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhu Wu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yun Wang
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ying-Li Kou
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yi-Dan Lin
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wei-Min Li
- Department of Respiratory and Critical Care Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lun-Xu Liu
- Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu 610041, China
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Guo CL, Li YT, Lin XY, Hanigan MD, Yan ZG, Hu ZY, Hou QL, Jiang FG, Wang ZH. Effects of graded removal of lysine from an intravenously infused amino acid mixture on lactation performance and mammary amino acid metabolism in lactating goats. J Dairy Sci 2017; 100:4552-4564. [PMID: 28434735 DOI: 10.3168/jds.2016-11921] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [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: 08/25/2016] [Accepted: 02/22/2017] [Indexed: 12/21/2022]
Abstract
To investigate responses of milk protein synthesis and mammary AA metabolism to a graded decrease of postruminal Lys supply, 4 lactating goats fitted with jugular vein, mammary vein, and carotid artery catheters and transonic blood flow detectors on the external pudic artery were used in a 4 × 4 Latin square experiment. Goats were fasted for 24 h and then received a 9-h intravenous infusion of an AA mixture plus glucose. Milk yield was recorded and samples were taken in h 2 to 8 of the infusion period; a mammary biopsy was performed in the last hour. Treatments were graded decrease of lysine content in the infusate to 100 (complete), 60, 30, or 0% as in casein. Lysine-removed infusions linearly decreased milk yield, tended to decrease lactose yield, and tended to increase milk fat to protein ratio. Milk protein content and yield were linearly decreased by graded Lys deficiency. Mammary Lys uptake was concomitantly decreased, but linear regression analysis found no significant relationship between mammary Lys uptake and milk protein yield. Treatments had no effects on phosphorylation levels of the downstream proteins measured in the mammalian target or rapamycin pathway except for a tended quadratic effect on that of eukaryotic initiation factor 2, which was increased and then decreased by graded Lys deficiency. Removal of Lys from the infusate linearly increased circulating glucagon and glucose. Removal of Lys from the infusate linearly decreased arterial and venous concentrations of Lys. Treatments also had a significant quadratic effect on venous Lys, suggesting mechanisms to stabilize circulating Lys at a certain range. The 2 infusions partially removing Lys resulted in a similar 20% decrease, whereas the 0% Lys infusion resulted in an abrupt 70% decrease in mammary Lys uptake compared with that of the full-AA mixture infusion. Consistent with the abrupt decrease, mammary Lys uptake-to-output ratio decreased from 2.2 to 0.92, suggesting catabolism of Lys in the mammary gland could be completely prevented when the animal faced severe Lys deficiency. Mammary blood flow was linearly increased, consistent with the linearly increased circulating nitric oxide by graded Lys deficiency, indicating mechanisms to ensure the priority of the mammary gland in acquiring AA for milk protein synthesis. Infusions with Lys removed increased mammary clearance rate of Lys numerically by 2 to 3 fold. In conclusion, the decreased milk protein yield by graded Lys deficiency was mainly a result of the varied physiological status, as indicated by the elevated circulating glucagon and glucose, rather than a result of the decreased mammary Lys uptake or depressed signals in the mTOR pathway. Mechanisms of Lys deficiency to promote glucagon secretion and mammary blood flow and glucagon to depress milk protein synthesis need to be clarified by future studies.
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Affiliation(s)
- C L Guo
- Ruminant Nutrition and Physiology Laboratory, College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, P. R. China
| | - Y T Li
- Ruminant Nutrition and Physiology Laboratory, College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, P. R. China
| | - X Y Lin
- Ruminant Nutrition and Physiology Laboratory, College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, P. R. China
| | - M D Hanigan
- Department of Dairy Science, Virginia Tech, Blacksburg 24061
| | - Z G Yan
- Ruminant Nutrition and Physiology Laboratory, College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, P. R. China
| | - Z Y Hu
- Ruminant Nutrition and Physiology Laboratory, College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, P. R. China
| | - Q L Hou
- Ruminant Nutrition and Physiology Laboratory, College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, P. R. China
| | - F G Jiang
- Ruminant Nutrition and Physiology Laboratory, College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, P. R. China
| | - Z H Wang
- Ruminant Nutrition and Physiology Laboratory, College of Animal Science and Technology, Shandong Agricultural University, Taian 271018, P. R. China.
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Affiliation(s)
- J G An
- Department of Dermatology, The Second Hospital affiliated with Xi'an Jiaotong University, Shaanxi, China
| | - C L Guo
- Leprosarium of Hanzhong, Shaanxi, China
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Tang X, He LY, Tao XQ, Dang Z, Guo CL, Lu GN, Yi XY. Construction of an artificial microalgal-bacterial consortium that efficiently degrades crude oil. J Hazard Mater 2010; 181:1158-62. [PMID: 20638971 DOI: 10.1016/j.jhazmat.2010.05.033] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 05/08/2010] [Accepted: 05/10/2010] [Indexed: 05/13/2023]
Abstract
Four oil component-degrading bacteria and one oil-tolerant microalgae, Scenedesmus obliquus GH2, were used to construct an artificial microalgal-bacterial consortium for crude-oil degradation. The bacterial strains included Sphingomonas GY2B and Burkholderia cepacia GS3C, along with a mixed culture, named GP3, containing Pseudomonas GP3A and Pandoraea pnomenusa GP3B. GY2B could only degrade polycyclic aromatic hydrocarbons, GS3C was able to degrade aliphatic chain hydrocarbons, and GP3 could utilize both saturated and aromatic hydrocarbons. In combination with unialgal or axenic algae, the bacteria showed different effects on oil degradation. Unialgal GH2 was not suitable for the consortium construction, as it could not cooperate well with GS3C and GP3. The axenic GH2 exhibited no oil-degrading ability; however, it significantly promoted the degradation ability of the oil component-degrading bacteria, especially for degrading biorefractory polycyclic aromatic hydrocarbons. Axenic S. obliquus GH2, combined with the four bacteria mentioned above, formed an optimal algal-bacterial consortium. The artificial consortium demonstrated an elevated efficiency in degrading both aliphatic and aromatic hydrocarbons of crude oil.
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Affiliation(s)
- X Tang
- School of Environmental Science and Engineering, South China University of Technology, Guangzhou Higher Education Mega Center, Guangzhou, PR China
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Abstract
Surface sediment samples were collected from seven mangrove swamps in Hong Kong SAR with different degrees of contamination. The total concentrations of 16 PAHs in these sediments ranged from 169.41 to 1058.37 ng g(-1) with the highest concentration found in Ma Wan and the lowest in Kei Ling Ha Lo Wai mangrove swamp. In each swamp, three bacterial consortia were enriched from sediments using phenanthrene (Phe) as the sole carbon and energy source, and individual bacterial colony showing Phe degradation was isolated and identified by 16S rDNA gene sequence. The consortia enriched from Sai Keng and Ho Chung sediments had highest ability to degrade mixed PAHs in liquid medium, with 90% Phe and Fla (fluoranthene) degraded in 7 days. On the other hand, Kei Ling Ha Lo Wai-enriched consortia degraded less than 40% Phe and Fla. Pyrene (Pyr) was hardly degraded by the consortia enriched from sediments. Bacterial isolates, namely Rhodococcus (HCCS), Sphingomonas (MWFG) and Paracoccus (SPNT) were capable to degrade mixed PAHs (Phe + Fla + Pyr). Their degradation percentages could be lower, comparable or even higher than their respective enriched consortia, depending on the consortium and the type of PAH compounds. These results suggest that PAH-degrading bacteria enriched from mangrove sediments, either as a mixed culture or as a single isolate could be used for PAHs bioremediation.
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Affiliation(s)
- C L Guo
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, China
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Tam NFY, Guo CL, Yau C, Ke L, Wong YS. Biodegradation of polycyclic aromatic hydrocarbons (PAHs) by microbial consortia enriched from mangrove sediments. Water Sci Technol 2003; 48:177-183. [PMID: 14682585] [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: 05/24/2023]
Abstract
Surface sediments from two mangrove swamps in Hong Kong were enriched to obtain PAH-degrading microbial consortia. The consortium from sediments enriched with phenanthrene (Phe) in Ma Wan, a mangrove swamp next to a boat anchorage, was effective in degrading PAH with 96.7% and 89.9% Phe degradation at 0 and 10 ppt salinities, respectively. The Phe-enriched microbial consortium could also use pyrene (Pyr) as the sole carbon source but the degradation was much less (around 15%). On the other hand, the Phe-enriched consortium from sediments in Yi O, a mangrove swamp recently polluted by an oil spill, completely removed Phe and Pyr at both 0 and 10 ppt salinities. This suggests that different consortia were selected in two sediments using the same PAH substrate. Not only sediments, PAH substrate used for enrichment also selected different consortia. The Pyr- and Fla-enriched Yi O consortia only achieved 10.5 and 4.5% Phe degradation, respectively and the corresponding pyrene degradation was 7 and 40%. Among the three PAH compounds, fluoranthene (Fla) was most difficult to degrade, and 21.1, 11.3, and 36.8% Fla were degraded by Phe-, Fla- and Pyr-enriched cultures, respectively.
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Affiliation(s)
- N F Y Tam
- Department of Biology and Chemistry, City University of Hong Kong, Kowloon, Hong Kong SAR, China.
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Tam NFY, Guo CL, Yau WY, Wong YS. Preliminary study on biodegradation of phenanthrene by bacteria isolated from mangrove sediments in Hong Kong. Mar Pollut Bull 2002; 45:316-324. [PMID: 12398402 DOI: 10.1016/s0025-326x(02)00108-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Elevated concentrations of polycyclic aromatic hydrocarbons (PAHs) have been found in mangrove sediments due to anthropogenic pollution, and microbial degradation has been suggested as the best way to remove PAHs from contaminated sediments. The degradation of phenanthrene, a model PAH compound by bacteria, either the enriched mixed culture or individual isolate isolated from surface mangrove sediments was examined. The effects of salinity, initial phenanthrene concentrations and the addition of glucose on biodegradation potential were also investigated. Results show that surface sediments collected from four mangrove swamps in Hong Kong had different degree of PAH contamination and had different indigenous phenanthrene-degrading bacterial consortia. The enriched bacteria could use phenanthrene as the sole carbon source for growth and degrade this PAH compound accordingly. A significant positive relationship was found between bacterial growth and percentages of phenanthrene degradation. The phenanthrene biodegradation ability of the enriched mixed bacterial culture was not related to the degree of PAH contamination in surface sediments. The growth and biodegradation percentages of the enriched mixed culture were not higher than that of the individual isolate especially at low salinity (0 and 10 ppt). High salinity (35 ppt) inhibited growth and biodegradation of phenanthrene of a bacterial isolate but less inhibitory effect was found on the mixed culture. The inhibitory effects of salinity could be reduced with the addition of glucose.
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Affiliation(s)
- N F Y Tam
- Department of Biology and Chemistry, Centre for Coastal Pollution and Conservation, City University of Hong Kong, Kowloon.
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Lee CH, Guo CL, Wang J. Optical measurement of the viscoelastic and biochemical responses of living cells to mechanical perturbation. Opt Lett 1998; 23:307-309. [PMID: 18084494 DOI: 10.1364/ol.23.000307] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We have developed an optical method for real-time monitoring of cellular motion in a natural environment with nanometer resolution. From the motion driven by small optical forces, we measured dynamic viscoelastic responses of living cells in the linear reversible region. Cytoplasmic gel-to-sol transition that was due to the disruption of the actin-filament framework was detected, and a linear release of Ca(2+) from intracellular storage that was related to submicrometer cell deformation was observed. The method was shown to be a powerful tool for studying the natural response of cells to mechanical perturbation.
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Guo CL, Ding YJ, Li S, Khurgin JB, Law CT, Kaplan AE, Law KK, Coldren LA, Stellato J. Strong excitonic nonlinearity in a P-I-N photodiode incorporating narrow asymmetric coupled quantum wells. Opt Lett 1991; 16:949-951. [PMID: 19776839 DOI: 10.1364/ol.16.000949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Strong excitonic nonlinearity in the photoconductive response of a P-I-N photodiode incorporating narrow asymmetric coupled quantum wells has been observed at 78 K. When the P-I-N photodiode is overbiased, the heavyhole energy levels in the two coupled quantum wells are moved toward the resonance by increasing the laser intensity. Also, both the light-hole and the heavy-hole excitonic transitions undergo intensity-dependent shifts. Both these effects indicate intrinsic change of bias due to redistribution of photogenerated carriers and, therefore, the existence of an intrinsic feedback mechanism. The magnitude of the blue shift of the heavy-hole excitonic transitions significantly increases when the laser intensity is changed from 9.2 to ~270 mW/cm(2).
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Ding YJ, Guo CL, Swartzlander GA, Khurgin JB, Kaplan AE. Spectral measurement of the nonlinear refractive index in ZnSe using self-bending of a pulsed laser beam. Opt Lett 1990; 15:1431-1433. [PMID: 19771112 DOI: 10.1364/ol.15.001431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The nonlinear refractive-index (n(2)) spectrum of ZnSe near the band gap (lambda(gap) approximately 450 nm) at 77 K was measured for the first time to our knowledge by using self-bending of a pulsed laser beam. The maximum nonlinearity, n(2) approximately 1.9 x 10(-8) cm(2)/W, measured by us is anomalously large, which cannot be explained by conventional thermally induced band-gap shrinkage.
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Affiliation(s)
- Y J Ding
- Department of Electrical and Computer Engineering, The Johns Hopkins University, Baltimore, Maryland 21218, USA
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Guo CL. [Clinical observations on 107 cases of acute bacillary dysentery treated with Chaenomeles lagenanid (Loisel) Kaidz]. Zhonghua Yi Xue Za Zhi 1984; 64:689-90. [PMID: 6442609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Guo CL. Effects of chemical and physical factors on the chromosome number in Nicotiana anther callus cultures. In Vitro 1972; 7:381-6. [PMID: 5041242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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