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He J, Mao N, Lyu W, Zhou S, Zhang Y, Liu Z, Xu Z. Association between oral microbiome and five types of respiratory infections: a two-sample Mendelian randomization study in east Asian population. Front Microbiol 2024; 15:1392473. [PMID: 38659993 PMCID: PMC11039966 DOI: 10.3389/fmicb.2024.1392473] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/25/2024] [Indexed: 04/26/2024] Open
Abstract
Objective To explore the causal relationship between the oral microbiome and specific respiratory infections including tonsillitis, chronic sinusitis, bronchiectasis, bronchitis, and pneumonia, assessing the impact of genetic variations associated with the oral microbiome. Methods Mendelian randomization was used to analyze genetic variations, leveraging data from genome-wide association studies in an East Asian cohort to identify connections between specific oral microbiota and respiratory infections. Results Our analysis revealed that Prevotella, Streptococcus, Fusobacterium, Pauljensenia, and Capnocytophaga play crucial roles in influencing respiratory infections. Prevotella is associated with both promoting bronchitis and inhibiting pneumonia and tonsillitis, with a mixed effect on chronic sinusitis. Streptococcus and Fusobacterium show varied impacts on respiratory diseases, with Fusobacterium promoting chronic sinusitis, bronchiectasis, and bronchitis. Conversely, Pauljensenia and Capnocytophaga are linked to reduced bronchitis and tonsillitis, and inhibited pneumonia and bronchitis, respectively. Discussion These findings underscore the significant impact of the oral microbiome on respiratory health, suggesting potential strategies for disease prevention and management through microbiome targeting. The study highlights the complexity of microbial influences on respiratory infections and the importance of further research to elucidate these relationships.
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Affiliation(s)
- Jiawei He
- Institute of Epidemic Diseases, Hubei University of Chinese Medicine, Wuhan, Hubei, China
- School of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Ningfeng Mao
- Institute of Epidemic Diseases, Hubei University of Chinese Medicine, Wuhan, Hubei, China
- School of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Wenliang Lyu
- Institute of Epidemic Diseases, Hubei University of Chinese Medicine, Wuhan, Hubei, China
- School of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Shuhan Zhou
- Institute of Epidemic Diseases, Hubei University of Chinese Medicine, Wuhan, Hubei, China
- School of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Yang Zhang
- Institute of Epidemic Diseases, Hubei University of Chinese Medicine, Wuhan, Hubei, China
- School of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Zhiyi Liu
- Institute of Epidemic Diseases, Hubei University of Chinese Medicine, Wuhan, Hubei, China
- School of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
| | - Zixuan Xu
- Institute of Epidemic Diseases, Hubei University of Chinese Medicine, Wuhan, Hubei, China
- School of Traditional Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, Hubei, China
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Liu YZ, Lyu W, Wang WQ. [Research progress of single-cell RNA sequencing in airway type 2 inflammatory diseases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:1266-1271. [PMID: 38186104 DOI: 10.3760/cma.j.cn115330-20230413-00169] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Affiliation(s)
- Y Z Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Lyu
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Q Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Zhu J, Song Y, Xiao Y, Ma L, Hu C, Yang H, Wang X, Lyu W. Metagenomic reconstructions of caecal microbiome in Landes, Roman and Zhedong White geese. Br Poult Sci 2023; 64:565-576. [PMID: 37493577 DOI: 10.1080/00071668.2023.2239172] [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: 01/11/2023] [Revised: 06/10/2023] [Accepted: 06/16/2023] [Indexed: 07/27/2023]
Abstract
1. The caecal microbiota in geese play a crucial role in determining the host's health, disease status and behaviour, as evidenced by extensive epidemiological data. The present investigation conducted 10× metagenomic sequencing of caecal content samples obtained from three distinct goose species, namely Landes geese, Roman geese and Zhedong White geese (n = 5), to explore the contribution of the gut microbiome to carbohydrate metabolism.2. In total, 337GB of Illumina data were generated, which identified 1,048,575 complete genes and construction of 331 metagenomic bins, encompassing 78 species from nine phyla. Firmicutes, Bacteroidetes, Actinobacteria, Proteobacteria and Bacteria were identified as the dominant phyla while Prevotella, Bacteroides, Streptococcus, and Subdoligranulum were the most abundant genera in the caecum of geese.3. The genes were allocated to 375 pathways using the Kyoto Encyclopedia of Genes and Genome (KEGG) analysis. The most abundant classes in the caecum of geese were confirmed to be glycoside hydrolases (GHs), glycosyl transferases (GTs), as identified through the carbohydrate-active enzyme (CAZyme) database mapping. Subdoligranulum variabile and Mediterraneibacter glycyrrhizinilyticus were discovered to potentially facilitate carbohydrate digestion in geese.4. Notwithstanding, further investigation and validation are required to establish a connection between these species and CAZymes. Based on binning analysis, Mediterraneibacter glycyrrhizinilyticus and Ruminococcus sp. CAG:177 are potential species in LD geese that contribute to the production of fatty liver.
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Affiliation(s)
- J Zhu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
- College of Animal Science, Zhejiang University, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition (Zhejiang University), Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Hangzhou, China
| | - Y Song
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Y Xiao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - L Ma
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - C Hu
- College of Animal Science, Zhejiang University, Hangzhou, China
- Key Laboratory of Molecular Animal Nutrition (Zhejiang University), Ministry of Education, Hangzhou, China
- Key Laboratory of Animal Nutrition and Feed Science (Eastern of China), Ministry of Agriculture and Rural Affairs, Hangzhou, China
| | - H Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - X Wang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - W Lyu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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Wang TB, Guo F, Lyu W, Ning ZJ. [Study on human fatigue during monotonous sitting-posture work]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2022; 40:914-917. [PMID: 36646484 DOI: 10.3760/cma.j.cn121094-20210525-00264] [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: 01/18/2023]
Abstract
Objective: In this study, the occupational fatigue caused by long-time sitting-posture work was studied. Also, the physical and psychological factors which affect on human fatigue of workers suffering from monotonous sitting-position were analyzed. Methods: In 2021, a total of 30 subjects, including 15 males and 15 females, were selected to complete a 4-hour simulated sitting-position assembly task in the laboratory. The "Borg's RPE" was used to measure the subjects' subjective fatigue and feeling of monotony, the polyconductive physiological recorder was used to measure the subjects' EMG, and the wireless motion-capture evaluation system was used to measure the kinematics of the subjects. Results: When engaged in monotonous work tasks, there was a significant positive correlation between workers' monotony and subjective fatigue, with correlation coefficients ranging from 0.976 to 0.988 (P<0.050) . At the beginning of work, the subjective fatigue of the neck was more significant (P=0.046) . As working time increased, the back fatigue was significantly higher than that of the neck (P=0.029) . After 4 hours of work, the MPF value of the back erector spinae EMG decreased significantly (P=0.025) . The body posture data showed that the shoulder and neck indicators began to change significantly after about 2 hours of work (P(neck)=0.032, P(shoulder)=0.021) . The waist and hip indicators began to change significantly after about 4 hours of work (P(left hip)=0.031, P(right hip)=0.028) . The flexion angle of the neck first increased and then decreased; the flexion angle of the waist and hip continued to increase with the working time. Conclusion: It was found that the fatigue effect of monotonous sitting-posture work on the operator is mainly reflected in the lower back. The monotony of the work exacerbates the operator's subjective fatigue feeling. The operator should be given corresponding protection and set the work content reasonably. It is recommended to have appropriate activities or short breaks every 2 work-hour.
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Affiliation(s)
- T B Wang
- Department of Industrial Engineering, School of Economics and Management, Shenyang Aerospace University, Shenyang 110136, China
| | - F Guo
- Department of Industrial Engineering, School of Business Administrotion, Northeastern University, Shenyang 110057, China
| | - W Lyu
- Department of Industrial Engineering, School of Business Administrotion, Northeastern University, Shenyang 110057, China
| | - Z J Ning
- Jig Shop, BMW Brilliance Automotive Co.Ltd. Shenyang 110143, China
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Xiao Z, Xu J, Tan J, Zhang S, Wang N, Wang R, Yang P, Bai T, Song J, Shi Z, Lyu W, Zhang L, Hou X. Zhizhu Kuanzhong, a traditional Chinese medicine, alleviates gastric hypersensitivity and motor dysfunction on a rat model of functional dyspepsia. Front Pharmacol 2022; 13:1026660. [PMID: 36467071 PMCID: PMC9712737 DOI: 10.3389/fphar.2022.1026660] [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] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/07/2022] [Indexed: 08/29/2023] Open
Abstract
Ethnopharmacological relevance: Zhizhu Kuanzhong (ZZKZ) is a traditional Chinese medicine modified from classic formula Zhizhu decoction in "Synopsis of Golden Chamber" (Han Dynasty in the 3rd century) and the Zhizhu pill in "Differentiation on Endogenous" in Jin Dynasty (1,115-1,234). ZZKZ contains four botanical drugs, including Citrus × Aurantium L [Rutaceae; Aurantii Fructus Immaturus], Atractylodes Macrocephala Koidz. [Compositae; Rhizoma Atractylodis Macrocephalae], Bupleurum Chinense DC [Apiaceae; Radix Bupleuri Chinensis], and Crataegus Pinnatifida Bunge [Rosaceae; Fructus Crataegi Pinnatifidae], which have been widely used in clinical therapy for functional dyspepsia (FD). Aim of the study: This study aimed to evaluate the pharmacological effects and mechanisms of action of ZZKZ on gastric hypersensitivity and motor dysfunction in a rat model of FD. Materials and methods: FD was induced in Sprague-Dawley rats by neonatal gastric irritation with 0.1% iodoacetamide. The FD rats were treated with ZZKZ (0.5 g/kg, 1.0 g/kg, or 1.5 g/kg respectively) by gavage for 7 days, while domperidone (3 mg/kg) acted as treatment control. Body weight gain, food intake, gastric emptying, and intestinal propulsion were also measured. Ex vivo gastric smooth muscle activity recordings and greater splanchnic afferent (GSN) firing recordings were employed to evaluate gastric motility and sensation. Particularly, the role of 5-HT in the action of ZZKZ in improving gastric dysmotility and hypersensitivity was explored. Results: ZZKZ promoted weight gain, food intake, gastric emptying, and intestinal propulsion in FD rats. ZZKZ promoted spontaneous and ACh-induced contractions of gastric smooth muscle strips in FD rats, alleviated spontaneous activity, and chemical (acid perfusion) and mechanical (intragastric distension) stimulated GSN firing in FD rats. ZZKZ ameliorated gastric smooth muscle contraction and GSN firing induced by 5-HT in FD rats. ZZKZ stimulated the release of serum 5-HT, with reduced 5-HT3 receptor and increased 5-HT4 receptor mRNA expression in the guts of FD rats. Conclusion: This study demonstrated that ZZKZ improves FD-related gastric hypersensitivity and motor dysfunction and should be an effective compound for relieving FD symptoms. The gastric 5-HT system with lower 5-HT3 activity and increased 5-HT4 distribution is involved in the mechanisms of ZZKZ underlying the treatment of FD.
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Affiliation(s)
- Zhuanglong Xiao
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jing Xu
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Clinical College of Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, China
- Department of Chinese Medicine, Hubei College of Chinese Medicine, Jingzhou, China
| | - Jun Tan
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shengyan Zhang
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nian Wang
- Department of Gastroenterology, The First Hospital of Wuhan (Wuhan Integrated TCM and Western Medicine Hospital), Wuhan, China
| | - Ruiyun Wang
- Department of Gerontology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Pengcheng Yang
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tao Bai
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jun Song
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhaohong Shi
- Department of Gastroenterology, The First Hospital of Wuhan (Wuhan Integrated TCM and Western Medicine Hospital), Wuhan, China
| | - Wenliang Lyu
- Clinical College of Chinese Medicine, Hubei University of Chinese Medicine, Wuhan, China
| | - Lei Zhang
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaohua Hou
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Han JB, Wang WQ, Zhu ZZ, Wang L, Wang XW, Zha Y, Lyu W. [Research progress of nasal mucosal epithelial cells in chronic rhinosinusitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:78-81. [PMID: 35090218 DOI: 10.3760/cma.j.cn115330-20210303-00103] [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: 06/14/2023]
Affiliation(s)
- J B Han
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Q Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Z Z Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - X W Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y Zha
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Lyu
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Zhu ZZ, Wang WQ, Han JB, Wang L, Lyu W. [Different concentrations of specialized pro-resolving mediators in eosinophilic and non-eosinophilic chronic rhinosinusitis with nasal polyps]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:1073-1079. [PMID: 34666468 DOI: 10.3760/cma.j.cn115330-20210419-00212] [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 investigate the difference of concentrations of specialized pro-resolving mediators (SPMs) derived from fatty acids in eosinophilic chronic rhinosinusitis with nasal polyps (ECRSwNP) and non-eosinophilic chronic rhinosinusitis with nasal polyps (nECRSwNP). Methods: A total of 36 patients with bilateral chronic rhinosinusitis with nasal polyps (CRSwNP) who underwent endoscopic nasal surgeries in Peking Union Medical College Hospital from May 2019 to September 2020 were enrolled, including 27 males and 9 females, with the age from 13 to 67 years. There were 23 cases of ECRSwNP and 13 cases of nECRSwNP. At the same time, 12 control subjects were enrolled. The concentrations of multiple SPMs, including lipoxins (LXA4 and LXB4), resolvins (RvD1, RvD2, RvD3, RvD5 and RvE1), protectins (PDX) and maresins (Mar-1) in nasal polyps with different histological subtypes and normal nasal mucosa were analyzed using liquid chromatography-tandem mass spectrometry. The concentrations of SPMs between groups were compared using Mann-Whitney U test. Spearman's rank correlation coefficient was used to measure the correlation between the concentrations of SPMs in nasal polyps and tissue eosinophil counts. Results: The concentrations of RvD2, RvD3, RvD5, LXA4, LXB4, Mar-1 and PDX in ECRSwNP group were significantly higher than that in controls (Z value was -2.276, -2.313, -3.371, -2.094, -2.051, -3.104 and -2.294, respectively, all P<0.05). The concentrations of RvD2, RvD5, Mar-1 and PDX in ECRSwNP group were significantly higher than those in nECRSwNP group (Z value was -2.175, -2.289, -2.243 and -2.124, respectively, all P<0.05). There was no significant difference in all these SPMs between nECRSwNP and controls (all P>0.05). The concentrations of RvD2, RvD3, RvD5, LXB4, Mar-1 and PDX in nasal polyps correlated positively with tissue eosinophil counts (r value was 0.443, 0.436, 0.371, 0.502, 0.340 and 0.386, respectively, all P<0.05). Conclusions: A varienty of SPMs are elevated in ECRSwNP. Dysregulation of fatty acid metabolism might play an important role in the chronic inflammation of ECRSwNP.
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Affiliation(s)
- Z Z Zhu
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Q Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - J B Han
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - L Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Lyu
- Department of Otorhinolaryngology Head and Neck Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Yang CX, Zhao XH, Li YY, Zhou YF, Zhang LA, Yuan D, Xia W, Wang JM, Song JD, Lyu W, Luo YF, Jiang LF, Jiang L, Huang XC, Hu XY, Dong XJ, Cheng TY, Zhou YZ, Zhang Y, Che Y. [Incidence of unintended pregnancy within 2 years after delivery and its influencing factors in China]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:616-621. [PMID: 34547862 DOI: 10.3760/cma.j.cn112141-20210611-00316] [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 investigate the present situation of unintended pregnancy within two years postpartum and its influencing factors in China. Methods: Participants who delivered a live birth at 60 hospitals in 15 provinces in the eastern, central and western regions of China during July 2015 to June 2016 were interviewed by using structured questionnaire. Information on occurrence of unintended pregnancy within 2 years after delivery, postpartum contraceptive use, sexual resumption, breastfeeding, and women's socio-demographic characteristics, and so on, were collected. Life-table analysis, cluster log-rank tests and a 2-level Cox regression model were used for data analysis. Results: A total of 18 045 postpartum women were investigated. The cumulative 1- and 2-year unintended pregnancy rates after delivery were 5.3% (95%CI: 4.5%-6.1%) and 13.1% (95%CI: 11.3%-14.8%), respectively. Cox regression model analysis showed that the risk of unintended pregnancy within 2 years postpartum were increased in younger women, ethnic minorities, women with abortion history, and those who had a vaginal delivery with short lactation time and late postpartum contraceptive initiation (all P<0.01). The risk of postpartum unintended pregnancy was not associated with geographic regions and hospitals where women gave a birth (all P>0.05). Conclusions: In China, the risk of unintended pregnancy within 2 years after delivery is relatively high. Service institutions and service providers should improve the quality of postpartum family planning services, promote the use of high effect contraceptive methods, and educate women to use a method at the time of their sexual resumption or even before.
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Affiliation(s)
- C X Yang
- Department of Obstetrics, Tianjin Baodi Hospital, Tianjin 301800, China
| | - X H Zhao
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y Y Li
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y F Zhou
- Center for Maternal Health Care, Changsha Hosptial for Maternal and Child Health Care, Changsha 410007, China
| | - L A Zhang
- Department of Family Planning, Women Health Center of Shanxi, Taiyuan 030013, China
| | - D Yuan
- Department of Obstetrics and Gynecology, Tianjin Hedong District Obstetrics and Gynecology Hospital, Tianjin 300042, China
| | - W Xia
- Family Planning Research Institute, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J M Wang
- Department of Family Planning, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - J D Song
- Department of Obstetrics and Gynecology, Affiliated Hospital of Inner Mongolia Medical University, Hohhot 010059, China
| | - W Lyu
- Department of Gynecology, Tongde Hospital of Zhejiang Province, Hangzhou 310012, China
| | - Y F Luo
- Department of Reproductive Gynecology, Jilin Province Maternal and Child Health Hospital, Changchun 130051, China
| | - L F Jiang
- Research Center of Social Medicine, Henan Institute of Reproduction Health Science and Technology, Zhengzhou 450002, China
| | - L Jiang
- Research Center of Social Medicine, Henan Institute of Reproduction Health Science and Technology, Zhengzhou 450002, China
| | - X C Huang
- Department of Gynecology, Fujian Maternity and Children Health Hospital, Fuzhou 350001, China
| | - X Y Hu
- Department of Maternity Care, Shanghai Center for Women and Children's Health, Shanghai 200062, China
| | - X J Dong
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - T Y Cheng
- Department of Maternal Health Care, Maternal and Child Health Care Hospital of Urumqi, Urumqi 830000, China
| | - Y Z Zhou
- Department of Health Toxicology, School of Public Health, Zunyi Medical University, Zunyi 563006, China
| | - Y Zhang
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
| | - Y Che
- Shanghai Institute for Biomedical and Pharmaceutical Technologies, National Health Commission Key Laboratory of Reproduction Regulation, School of Public Health, Fudan University, Shanghai 200237, China
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Zhu ZZ, Wang WQ, Chen YJ, Lyu W. [Changes of histopathological and hematological characteristics in recurrent chronic rhinosinusitis with nasal polyps]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:249-255. [PMID: 33730808 DOI: 10.3760/cma.j.cn115330-20200628-00532] [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 investigate the histopathological and hematological changes in reoperation of recurrent chronic rhinosinusitis with nasal polyps (CRSwNP). Methods: A total of 41 patients with CRSwNP who underwent two consecutive endoscopic sinus surgeries in Peking Union Medical College Hospital from February 1999 to April 2019 were included retrospectively, including 25 males and 16 females, aged (40.7±13.6) years at the former surgery and (47.0±13.2) years at the recurrent surgery. The peripheral blood cell count results were collected. Differential inflammatory cells in nasal polyp tissue sections were counted and characteristics of tissue remodeling were scored. Paired t test was used to compare the hematological and histological data of the two surgeries in the same cohort. Spearman's rank correlation coefficient was used to determine the correlation between tissue and peripheral blood eosinophil contents. Results: In histopathological tissue sections of nasal polyps, the mean tissue eosinophil, lymphocyte and total inflammatory cell counts per high power field significantly decreased (54.04±34.67 vs 76.97±65.59, 35.27±16.61 vs 50.01±26.94, 128.88±41.32 vs 176.38±80.59, t value was 2.413, 2.923, 3.445, respectively, all P<0.05), whereas the percentages of different inflammatory cell types remained unchanged when comparing the recurrent surgery with the former surgery. There was a significant reduction of basement membrane thickness and goblet cell hyperplasia score in the recurrent surgery (1.29±0.84 vs 2.00±0.84, 1.81±1.31 vs 2.44±1.10, t value was 5.367, 2.714, respectively, all P<0.05). Subgroup analysis suggested that changes in asthmatic cases, younger cases and cases without previous surgery were more remarkable than non-asthmatics, older cases and cases with previous surgery, respectively. There was no significant change in peripheral white blood cell counts and differential cell percentages, except a small increase of blood monocyte percentage. Correlation analysis showed that tissue eosinophil content correlated positively with blood eosinophil content at each surgery. Conclusions: In the recurrent surgery of CRSwNP, tissue eosinophil, lymphocyte and total inflammatory cell counts decrease significantly compare with that of the former surgery. The histological inflammatory load decreases with improvement of tissue remodeling, which could be attributed to the integrated treatment with surgery and medications.
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Affiliation(s)
- Z Z Zhu
- Department of Otorhinolaryngology Head and Neck Surgery,Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Q Wang
- Department of Otorhinolaryngology Head and Neck Surgery,Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y J Chen
- Department of Otorhinolaryngology Head and Neck Surgery,Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Lyu
- Department of Otorhinolaryngology Head and Neck Surgery,Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Yang WZ, Lan YJ, Lyu W, Leng ZW, Feng LZ, Lai SJ, Ye CC, Wang Q. [Establishment of multi-point trigger and multi-channel surveillance mechanism for intelligent early warning of infectious diseases in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1753-1757. [PMID: 32746606 DOI: 10.3760/cma.j.cn112338-20200722-00972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This paper reviews the limitations of current infectious disease surveillance and early warning system in China, analyzes the concepts and countermeasures of the establishment of an intelligent early warning platform of infectious diseases based on multi-point trigger mechanism and multi-channel surveillance mechanism and proposes the realization routes for the purpose of facilitating capacity building and improvement of surveillance and early warning of infectious diseases in China.
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Affiliation(s)
- W Z Yang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y J Lan
- West China School of Public Health, Sichuan University, Chengdu 610041, China
| | - W Lyu
- Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention, Nanning 530001, China
| | - Z W Leng
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - L Z Feng
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - S J Lai
- World Pop, School of Geography and Environmental Science, University of Southampton, Southampton SO163ZG, UK
| | - C C Ye
- Department of Infectious Disease Control and Disinfection Management, Shanghai Pudong New District Center for Disease Control and Prevention, Shanghai 200136, China
| | - Q Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Zhang Q, Lyu W, Yu M, Niu Y. Sulfur dioxide induces vascular relaxation through PI3K/Akt/eNOS and NO/cGMP signaling pathways in rats. Hum Exp Toxicol 2020; 39:1108-1117. [PMID: 32153200 DOI: 10.1177/0960327120911428] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Sulfur dioxide (SO2) is a common exogenous atmospheric pollutant. Studies have shown that SO2 can cause vasodilation as a gas signaling molecule, but the specific signaling pathways are not well understood. This study aimed to explore the underlying mechanism behind the effects of SO2 on vasodilation of isolated rat aorta. The results showed that when the dose of SO2 was 30 μM, the vasodilation of endothelium-intact rings was partially suppressed by LY294002 and NG-nitro-l-arginine methyl ester, and the protein levels of phosphoinositide 3-kinase (PI3K), p-Akt, and p-endothelial nitric oxide synthase (p-eNOS) were significantly increased. When the dose of SO2 was 300 μM or 1500 μM, the vasodilation of endothelium-denuded rings did not change after application of the inhibitor, but the protein levels of PI3K, p-Akt, and p-eNOS were significantly decreased, and the activity of NOS and the level of nitric oxide (NO) and cyclic guanosine monophosphate (cGMP) were significantly increased. We speculate that the mechanism of SO2-induced vasodilatation likely involved the endothelial PI3K/Akt/eNOS and NO/cGMP signal pathways. In addition, at the concentration of 1500 μM, SO2 markedly increased the level of caspase-3 and caspase-9. The results suggest that high concentrations of SO2 may cause damage to blood vessels. This study will help to further inform the etiologies of SO2-related cardiovascular disease.
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Affiliation(s)
- Q Zhang
- College of Environment and Resource, Institute of Environmental Science, Shanxi University, Taiyuan, China
| | - W Lyu
- College of Environment and Resource, Institute of Environmental Science, Shanxi University, Taiyuan, China
| | - M Yu
- Institute of NBC Defence, Beijing, China
| | - Y Niu
- College of Environment and Resource, Institute of Environmental Science, Shanxi University, Taiyuan, China
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Dong BQ, Chen BY, Liang QY, He S, Lyu W, Liu BT, Zuo YJ, Lin L, Wei H, Wei J, Hang XN, Qiu XX. [Study on the characteristics of major birth defects in 1.69 million cases of fetus in Guangxi Zhuang Autonomous Region]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 40:1554-1559. [PMID: 32062914 DOI: 10.3760/cma.j.issn.0254-6450.2019.12.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: Tracking the information on 1.69 million fetal cases across Guangxi Zhuang Autonomous Region (Guangxi) so as to study the occurrences of total and major birth defects in order to evaluate the ability on related prevention and control programs in Guangxi. Methods: Using the self-developed "Gui Women's System" to establish a database of 1.69 million fetal cases in Guangxi and to analyze the distribution of time, space and population, as well as the outcomes of pregnancy, using the big data. Results: During the 29 months of observation, the overall live birth rate was 99.25%, with stillbirth rate during pregnancy as 0.44%, stillbirth rate during birth as 0.02%, and the 0-6 days mortality rate as 0.14%. The total detection rate on birth defects was 197.63/10 000; the incidence rate was 103.04/10 000, the birth rate was 102.55/10 000. The overall discovery rate of major birth defects was 48.33/10 000, with the incidence rate as 783 000, the birth rate as 0.58/10 000. The discovery rates of major birth defects in 14 cities were between 35 and 68/10 000, and the birth rate dropped significantly to less than 1.00 in 10 000. Nationalities showed that the number of pregnant women with birth defects more than 50 000 would include Hui (9.68/10 000), Yao (9.57/10 000), and Jing (9.37/10 000). With the increasing age of gestation, number of birth defects, incidence of major birth defects also increased. Ninety-five percent of the major birth defects were found within <28 weeks and with the top 5 kinds of major birth defects as complicated congenital heart disease (9.11/10 000), alpha thalassemia (8.36/10 000), and 21-trisomy syndrome (7.85/10 000), beta thalassemia (5.32/10 000) and fetal edema syndrome (4.92/10 000). The top 5 major birth defects appeared as complicated congenital heart disease (9.11/10 000), alpha thalassemia (8.36/10 000), and 21-trisomy syndrome (7.85/10 000), beta thalassemia (5.32/10 000) and fetal edema syndrome (4.92/10 000). Conclusion: Programs leading to increase the rate on discovery of major birth defects were fundamental in effectively reducing the major birth defects.
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Affiliation(s)
- B Q Dong
- School of Public Health Management, Guangxi University of Traditional Chinese Medicine, Nanning 530200, China
| | - B Y Chen
- Guangxi Zhuang Autonomous Region Women and Children Care Hospital, Nanning 530000, China
| | - Q Y Liang
- Guangxi Zhuang Autonomous Region Health and Family Planning Statistics Information Center, Nanning 530021, China
| | - S He
- Guangxi Zhuang Autonomous Region Women and Children Care Hospital, Nanning 530000, China
| | - W Lyu
- Guangxi Zhuang Autonomous Region Health and Family Planning Statistics Information Center, Nanning 530021, China
| | - B T Liu
- Guangxi Zhuang Autonomous Region Health and Family Planning Statistics Information Center, Nanning 530021, China
| | - Y J Zuo
- Guangxi Zhuang Autonomous Region Women and Children Care Hospital, Nanning 530000, China
| | - L Lin
- Guangxi Zhuang Autonomous Region Women and Children Care Hospital, Nanning 530000, China
| | - H Wei
- Guangxi Zhuang Autonomous Region Women and Children Care Hospital, Nanning 530000, China
| | - J Wei
- Guangxi Zhuang Autonomous Region Women and Children Care Hospital, Nanning 530000, China
| | - X N Hang
- Guangxi Zhuang Autonomous Region Women and Children Care Hospital, Nanning 530000, China
| | - X X Qiu
- Guangxi Zhuang Autonomous Region Women and Children Care Hospital, Nanning 530000, China
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Dong BQ, You JP, Liang QY, Lyu W, Ma JF, Wei HW, Li H. [Study on the distribution and related factors of birth weight of live births in Guangxi Zhuang Autonomous Region of China from 2016 to 2018]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:1259-1264. [PMID: 31795583 DOI: 10.3760/cma.j.issn.0253-9624.2019.12.011] [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 investigate the distribution and related factors of birth weight of live births and full-term infants in Guangxi Zhuang Autonomous Region of China. Methods: Based on Guangxi women and children information system from 2016 to 2018, a large real-time database about maternal and live-birth information was established. It covered 1 712 midwifery institutions in Guangxi. A total of 2 394 240 cases of live births were collected and 2 243 129 cases of which were full-term infants. The multivariate logistic regression model was used to analyze the related factors of low birth weight. Results: The birth weight of 2 394 240 live births, (3 123.49±461.08) g, in Guangxi was approximately normal distribution with a peak distribution to the left. The incidence of low birth weight was 8.05%, and the incidence of macrosomia was 2.07%. The incidence of low birth weight was 10.92% for the puerpera with body mass index (BMI, kg/m(2)) <18.5, 16.82% for the puerpera with height <145 cm, 8.92% for the puerpera with age <20 years old, 7.67% for the puerpera with age ≥35 years old, and 54.65% for the puerpera with premature birth. The birth weight of 2 243 129 full-term infants, (3 176.01±400.78) g, was approximately normal distribution with a peak distribution to the right. The incidence of low birth weight was 2.97%, and the incidence of macrosomia was 2.19%. The incidence of low birth weight was 4.73% for puerpera with BMI<18.5, 8.17% for puerpera with height<145 cm, 4.83% for puerpera with age <20 years old, and 3.05% for puerpera with age ≥35 years old. The risks of low birth weight [OR (95%CI) value] of pregnant women aged <20, 25-29 and 30-34 years old were 1.31 (1.28-1.35), 0.88 (0.86-0.90) and 0.89 (0.87-0.91) times of those aged ≥35 years old. The risks of low birth weight [OR (95%CI) value] of pregnancy BMI <18.5 and 18.5-23.9 kg/m(2) group were 1.98 (1.94-2.03) and 1.20 (1.18-1.23) times of those pregnancy BMI ≥24 kg/m(2). The risks of low birth weight [OR (95%CI) value] of pregnant women's height (cm)<145, 145-154, 155-159 and 160-164 cm were 4.67 (4.39-4.97), 2.36 (2.29-2.44), 1.58 (1.53-1.63) and 1.22 (1.18-1.26) times of those heights ≥165 cm group. The risks of low birth weight [OR (95%CI) value] of pregnant women's gestational age <28, 28-31 and 32-36 years old were 136.65 (124.33-150.20), 1 704.37 (1 509.02-1 925.02) and 33.45 (32.98-33.94) times of those gestational age ≥37 years old. Conclusion: The incidence of low birth weight of live births was higher in Guangxi from 2016 to 2018. There is a higher risk of low birth weight for younger, older, low height, low BMI and preterm women in Guangxi from 2016 to 2018.
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Affiliation(s)
- B Q Dong
- School of Public Health and Management, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - J P You
- School of Public Health and Management, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - Q Y Liang
- Departments of Statistics, Guangxi Health and Family Planning Statistical Information Center, Nanning 530021, China
| | - W Lyu
- Departments of Statistics, Guangxi Health and Family Planning Statistical Information Center, Nanning 530021, China
| | - J F Ma
- School of Public Health and Management, Guangxi University of Chinese Medicine, Nanning 530200, China
| | - H W Wei
- Departments of Obstetrics, Guangxi Maternal and Child Health Hospital, Nanning 530000, China
| | - H Li
- School of Public Health and Management, Guangxi University of Chinese Medicine, Nanning 530200, China
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Lyu W, Liu ZY. [Noticeable questions on diagnosis and treatment of invasive fungal infection]. Zhonghua Nei Ke Za Zhi 2019; 58:553-555. [PMID: 31365974 DOI: 10.3760/cma.j.issn.0578-1426.2019.08.001] [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)
- W Lyu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Jia CH, Wang L, Jing FH, Xie J, Qiu ZF, Li TS, Lyu W. [Clinical characteristics and T-lymphocyte subsets in 48 acquired immune deficiency syndrome patients with cytomegalovirus infections]. Zhonghua Nei Ke Za Zhi 2019; 58:191-197. [PMID: 30803177 DOI: 10.3760/cma.j.issn.0578-1426.2019.03.008] [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 investigate the clinical features and T lymphocytes subsets in patients with acquired immune deficiency syndrome (AIDS) and cytomegalovirus (CMV) infection. Methods: A total of 48 hospitalized patients with human immunodeficiency virus (HIV)-1/AIDS and CMV infections were recruited at Peking Union Medical College Hospital from Jan 2010 to Aug 2017. Their clinical features and immune function were retrospectively analyzed. Patients with only HIV/AIDS in previous study were recruited as controls. Results: All 48 patients were at C3 stage, including 36 men and 12 women. Five of them were younger than 30 years old, 33 cases within 31-50 years old, and 10 cases older than 50 years old. Thirty-five patients had CD(4)(+)T lymphocytes ≤ 50 cells/μl, 7 cases with CD(4)(+)T cells 51-100/μl, 3 cases with 101-200 cells/μl, and 3 cases over 200 cells/μl. As to CMV infections, there were 31 cases of CMV viremia, 1 case of CMV encephalitis, 1 case of CMV enteritis, 5 cases of CMV pneumonia, and 9 cases of CMV retinitis. Other opportunistic infections were also common including 16 cases of pneumocystis pneumonia, 9 cases of tuberculosis, 5 cases of syphilis, 18 cases of digestive tract fungal infections, 8 cases of pulmonary fungal infections, 2 cases of EB virus infections, 2 cases of HIV encephalopathy/progressive multifocal leukoencephalopathy (PML), 3 cases of cryptococcal meningitis, 1 case of toxoplasma infection. In group of both CMV and HIV/AIDS infections, 100% patients had inverted CD(4)(+)/CD(8)(+) ratio. The immune activation marker CD(8)(+)CD(38)(+)/CD(8)(+) was higher (61.6%-98.8%) with a median value of 91.2% in 40 patients. HLA-DR(+)CD(8)(+)/CD(8)(+), another marker for T cell activation, was 25.5%-98.0% in 44 patients with a median value of 60.3%. Thirty-six patients had both immune activation markers positive. There was no significant difference in counts of B cells, natural killer cells, CD(4)(+) T cells, CD(8)(+) T cells and immune activation subsets stratified by gender and age (P>0.05). Meanwhile, neither serum HIV viral load nor serum CMV viral load was correlated with HLA-DR(+)CD(8)(+)/CD(8)(+), CD(8)(+)CD(38)(+)/CD(8)(+), CD(4)(+)T cell counts, and CD(4)(+)/CD(8)(+) ratio in the CMV and HIV/AIDS co-infection group (all P>0.05), while HIV viral load in HIV/AIDS only group was significantly correlated with HLA-DR(+)CD(8)(+)T/CD(8)(+), CD(38)(+)CD(8)(+)/CD(8)(+), CD(4)(+) T cell counts, CD(4)(+)/CD(8)(+) ratio (r=0.473, 0.575, -0.767 and -0.678, respectively, all P<0.05). Conclusions: CMV infections develop in HIV patients with advanced stage. CMV infection can cause life-threatening multiple organ lesions, especially in those with CD(4)(+) T cells less than 100 cells/μl. It is of great importance to screen CMV-IgM, pp65 antigen, CMV DNA to make early diagnosis and treatment.
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Affiliation(s)
- C H Jia
- Department of Infectious Diseases, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China (is working on the Department of Infectious Diseases, the Third Hospital of Qinhuangdao, Qinhuangdao 066000, China)
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Wan HJ, Lyu W, Yu L, Zhou ZY, Hu YJ, Hu J. [Inhibition of G9a attenuates cell proliferation via the mitochondrial apoptosis pathway in lung adenocarcinoma]. Zhonghua Zhong Liu Za Zhi 2017; 39:13-17. [PMID: 28104027 DOI: 10.3760/cma.j.issn.0253-3766.2017.01.003] [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: The aim of this study is to investigate the effect of G9a inhibitor BIX-01294 on attenuating cell proliferation in human lung adenocarcinoma A549 cell line and the underlying molecular mechanism. Methods: Treated with BIX-01294, the growth and proliferation of A549 cells were detected by MTT assay and colony formation assay, and its impact on cell apoptosis was analyzed using flow cytometry. By Western blot, we explored the alterations in the expression of apoptosis-related proteins and the G9a catalysate, H3K9me and H3K9me2. In addition, in the pretreatment with caspase inhibitor Z-VAD-FMK, we detected the apoptotic dependence of BIX-01294 attenuating impact on A549 cell proliferation. Results: Compared with the control group, the histone methyltransferase G9a inhibitor BIX-01294 attenuated cell proliferation in A549 cells in a dose- and time-dependent manner. There were 42.5±8.7 colonies after BIX-01294 (10 μmol/L) treatment for 7 days, while 172.7±23.0 colonies in the control group, with a statistical significance (P<0.05). After treatment with BIX-01294 (10 μmol/L) for 24 hours, the cell apoptotic rate was(47.6±8.4)%, with a significant difference in comparison with the control group [(7.2±3.6)%, P<0.05]. The expression of G9a catalysate, H3K9me and H3K9me2 was downregulated, the same with anti-apoptotic protein Bcl-2, while the proteins in mitochondrial apoptosis pathway, Bax, Bak and cleaved caspase-9, were upregulated, so was the expression of cleaved caspase-3 and cleaved PARP, and there was no alteration in the expression of cleaved caspase-8, which is a protein related with death receptor apoptosis pathway. Furthermore, after Z-VAD-FMK pretreatment, the cell apoptotic rate was decreased significantly, and the expression of apoptosis-related proteins were downregulated. Conclusions: Our results indicate that BIX-01294 can attenuate cell proliferation in lung adenocarcinoma, and it can be considered as one of the underlying mechanisms, the apoptosis may be induced by activating mitochondrial pathway.
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Affiliation(s)
- H J Wan
- Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - W Lyu
- Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - L Yu
- Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Z Y Zhou
- Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Y J Hu
- Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - J Hu
- Department of Thoracic Surgery, the First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
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Zhang P, Yang C, Xing X, Dai H, Guo L, Lyu W. [Reconstruction of soft tissue defects at nose, lip, and cheek with facial artery perforator flaps]. Zhonghua Zheng Xing Wai Ke Za Zhi 2016; 32:35-38. [PMID: 27197478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To investigate the therapeutic effect of facial artery perforator flap for the soft tissue defects at nose, lip and cheek. METHODS The facial artery perforator adjacent to the defect was identified by Doppler ultrasonography. The perforator flap was designed according to the defect location, size and shape. The subcutaneous tissue around the perforator was kept as much as possible to protect the venous drainage. RESULTS From Oct. 2012 to Oct.2013, 26 cases were treated with facial artery perforator flaps, with 9 cases of nasal defects, 10 cases of lip defects and 7 cases of buccal defects. The defects size ranged from 1.5 cm x 2.0 cm to 3.0 cm x 3.0 cm and the flaps size ranged from 2.0 cm x 2.5 cm to 3.5 cm x 3. 5 cm. Superficial necrosis(3mm in width) happened at the end of one flap. All the other 25 flaps survived completely. 16 cases were followed up for 3 months to 2 years with no relapse and satisfactory cosmetic and functional results were achieved. CONCLUSIONS Both cosmetic and functional effect can be achieved with facial artery perforator flap for defects at nose, lip and cheek.
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