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Shi Y, Yao JJ, Yao YH, Liu ZB, Gao F, Li XY, Feng SQ. [A case of recurrent acute promyelocytic leukemia with p.R394G resistance]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:1049-1050. [PMID: 38503533 PMCID: PMC10834878 DOI: 10.3760/cma.j.issn.0253-2727.2023.12.016] [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] [Received: 07/22/2023] [Indexed: 03/21/2024]
Affiliation(s)
- Y Shi
- Department of Hematology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China Tangshan Vocation & Technical College, Tangshan 063000, China
| | - J J Yao
- Department of Hematology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| | - Y H Yao
- Department of Hematology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| | - Z B Liu
- Department of Hematology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| | - F Gao
- Department of Hematology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| | - X Y Li
- Department of Hematology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
| | - S Q Feng
- Department of Hematology, North China University of Science and Technology Affiliated Hospital, Tangshan 063000, China
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Wang TH, Hao R, Xu BN, Chang L, Liu ZB, Yao JL, Wang W, Xie WJ, Yan WW, Xiao ZJ, Qiu LG, An G. [Safety and feasibility of 120 min rapid infusion regimen of daratumumab in patients with multiple myeloma]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:696-699. [PMID: 37803849 PMCID: PMC10520231 DOI: 10.3760/cma.j.issn.0253-2727.2023.08.017] [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] [Received: 10/31/2022] [Indexed: 10/08/2023]
Affiliation(s)
- T H Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - R Hao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - B N Xu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L Chang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Z B Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - J L Yao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W J Xie
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W W Yan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Z J Xiao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L G Qiu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - G An
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
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Liu ZB, Zhu WY, Fei B, Lv LY. Effects of Oral Steroids Combined with Postauricular Steroid Injection on Patients with Sudden Sensorineural Hearing Loss with Delaying Intervention: A Retrospective Analysis. Niger J Clin Pract 2023; 26:760-764. [PMID: 37470650 DOI: 10.4103/njcp.njcp_661_22] [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] [Indexed: 07/21/2023]
Abstract
Background In the otology clinic, we often receive some sudden sensorineural hearing loss (SSNHL) patients accompanied by annoying tinnitus, who usually visited over three weeks after the onset. Nevertheless, due to the high treatment cost and relatively low cure rate, there are still great disputes about hospitalization or not for these patients. Aim: This study aimed to perform a retrospective analysis for analyzing the efficacy of treatment with oral steroids combined with postauricular steroid injection in patients with delaying effective treatment. Material/Methods A total of 157 eligible SSNHL patients with delaying effective treatment over three weeks were enrolled in this study. According to different treatment methods of oral steroids with or without postauricular steroid injection, these patients were divided into three groups: PO (prednisone oral) group, PSI (prednisone oral and postauricular steroid injection) group, and PII (prednisone oral and postauricular lidocaine injection) group. The changes in level of hearing, mean subjective tinnitus loudness, and side effects were analyzed in the three groups. Results Hearing improvement and tinnitus remission were all observed in three groups after treatment. Compared with PO and PII groups, those patients in PSI groups had more improvement in level of hearing and mean subjective tinnitus. The level of tinnitus loudness was statistically significantly correlated with the level of PTA both before treatment and after treatment. Conclusion Oral steroids combined with postauricular steroid injection should be employed for treatment of SSNHL patients with delaying effective treatment over three weeks.
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Affiliation(s)
- Z B Liu
- Department of Otorhinolaryngology-Head and Neck Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian City, China
| | - W Y Zhu
- Department of Otorhinolaryngology-Head and Neck Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian City, China
| | - B Fei
- Department of Otorhinolaryngology-Head and Neck Surgery, Affiliated Huai'an Hospital of Xuzhou Medical University, Huai'an City, China
| | - L Y Lv
- Department of Otorhinolaryngology-Head and Neck Surgery, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huaian City, China
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Xu SW, Zhang YJ, Liu WM, Zhang XF, Wang Y, Xiang SY, Su JC, Liu ZB. Cigarette smoke extract-induced inflammatory response via inhibition of the TFEB-mediated autophagy in NR8383 cells. Exp Lung Res 2023:1-10. [PMID: 36636918 DOI: 10.1080/01902148.2022.2164674] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Objective: Chronic pulmonary inflammation caused by long-term smoking is the core pathology of COPD. Alveolar macrophages (AMs) are involved in the pulmonary inflammation of COPD. The accumulation of damaged materials caused by impaired autophagy triggers inflammatory response in macrophages. As a key transcription regulator, transcription factor EB (TFEB) activates the transcription of target genes related autophagy and lysosome by binding to promoters, whereas it is unclarified for the relationship between inflammatory response induced by cigarette smoke extract (CSE) and TFEB-mediated autophagy. Thus, we investigated the role of TFEB-mediated autophagy in inflammatory response induced by CSE in NR8383 cells, and to explore its potential mechanism. Methods: Based on cell viability and autophagy, cells treated with 20% concentration of CSE for 24 h were selected for further studies. Cells were divided into control group, chloroquine (CQ, the autophagy inhibitor) group, CSE group, CSE + rapamycin (the autophagy inducer) group and CSE + fisetin (the TFEB inducer) group. The levels of tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β), and IL-6 in supernatant were detected by ELISA kits. The protein expressions were tested by western blot. The intensity of fluorescence of Lysosome-associated membrane protein 1 (LAMP1) and TFEB was detected by immunofluorescence. Lyso-Tracker Red staining was applied to detect the lysosome environment. Results: CSE inhibited the cell viability, increased the contents of TNF-α, IL-1β, IL-6, the ratio of LC3II/I, and the level of P62 protein. Besides, CSE decreased the fluorescence intensity of LAMP1 protein and Lyso-Tracker Red staining, as well as the ratio of nucleus/cytosol of TFEB protein. Activating autophagy with rapamycin alleviated CSE-induced inflammatory response. The activation of TFEB via fisetin alleviated CSE-induced autophagy impairment and lysosomal dysfunction, thus alleviated inflammatory response in NR8383 cells. Conclusion: CSE-induced inflammatory response in NR8383 cells, which may be related to the inhibition of TFEB-mediated autophagy.
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Affiliation(s)
- Shu-Wen Xu
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yu-Jie Zhang
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Wen-Mei Liu
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Xin-Fang Zhang
- Physiology Department, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yuan Wang
- Physiology Department, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Shui-Ying Xiang
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Jing-Chao Su
- Physiology Department, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Zi-Bing Liu
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China.,Physiology Department, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
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Liu XY, Su JC, Zhang XF, Xiang SY, Yi CM, Wang YW, Wang CY, Liu ZB. [Electroacupuncture preconditioning improves pulmonary function via inhibiting inflammatory response and up-regulating expression of ACE2 and Ang (1-7) in lipopolysaccharide-induced acute lung injury rats]. Zhen Ci Yan Jiu 2022; 47:684-689. [PMID: 36036101 DOI: 10.13702/j.1000-0607.20210979] [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: 06/15/2023]
Abstract
OBJECTIVE To observe the effect of electroacupuncture (EA) at "Zusanli"(ST36) pretreatment on lung functions, inflammatory response, and levels of angiotensin-converting enzyme 2 (ACE2) and angiotensin (1-7) [Ang (1-7)] in rats with sepsis-induced acute lung injury (ALI), so as to explore its mechanisms underlying improvement of ALI. METHODS Thirty male SD rats were randomly divided into normal, model and EA groups (n=10 in each group). The sepsis-related ALI model was established by intraperitoneal injection of lipopolysaccharide (LPS, 5 mg/kg). Rats of the EA group received EA (4 Hz/20 Hz, 1-3 mA) stimulation at bilateral ST36 for 30 min, once each day, for 7 days before modeling. The lung functions including forced vital capacity (FVC), forced expiratory volume at 0.1 second (FEV0.1) and FEV0.3 were detected using a respiratory function detector for small animals at 3 h after modeling. The bronchoalveolar lavage fluid (BALF) was collected for assaying the contents of Ang (1-7), tumor necrosis factor-α (TNF-α) and interleukin-1 β (IL-1β) using ELISA. The lung wet/dry weight (W/D) ratio, FEV0.1/FVC, and FEV0.3/FVC were calculated. The histopathological changes of lung tissues were displayed by hematoxylin-eosin (H.E.) staining. The expression of ACE2 and mitochondrial assembly receptor (MasR) mRNAs and proteins in the lung tissue was detected by fluorescence quantitative real-time PCR and Western blot, separately. RESULTS Following modeling, the levels of FVC, FEV0.1, FEV0.3, ratio of FEV0.1/FVC and FEV0.3/FVC, content of Ang (1-7) in the BALF, and the expression levels of ACE2 and MasR mRNAs and proteins in the lung tissue were significantly decreased (P<0.01), while the level of W/D ratio and TNF-α and IL-1β contents in the BALF significantly increased (P<0.01) in the model group relevant to the normal group. In comparison with the model group, the levels of FVC, FEV0.1, FEV0.3, ratio of FEV0.1/FVC and FEV0.3/FVC, content of Ang (1-7) in the BALF, and expression levels of ACE2 and MasR mRNAs and proteins in the lung tissue were significantly increased (P<0.05, P<0.01), whereas the level of W/D ratio, and TNF-α and IL-1β contents in the BALF were significantly decreased (P<0.05, P<0.01) in the EA group. H.E. staining showed pulmonary interstitial edema and alveolar septum thickening with severe inflammatory cell infiltration in the model group, which was relatively milder in the EA group. CONCLUSION EA preconditioning at ST36 can improve pulmonary function in sepsis-related ALI rats, which may be related to its effects in inhibiting inflammatory response and up-regulating ACE2 and MasR expression and Ang (1-7) content in the lung tissue.
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Affiliation(s)
- Xin-Yue Liu
- Institute of Acupuncture-moxibustion and Meridian of College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Jing-Chao Su
- College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Xin-Fang Zhang
- College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Shui-Ying Xiang
- Institute of Acupuncture-moxibustion and Meridian of College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Chun-Mei Yi
- Institute of Acupuncture-moxibustion and Meridian of College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Yu-Wen Wang
- Institute of Acupuncture-moxibustion and Meridian of College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Cai-Yun Wang
- Graduate School, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Zi-Bing Liu
- Institute of Acupuncture-moxibustion and Meridian of College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China; College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230038, China
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Wang CY, Su JC, Zhang XF, Cheng C, Zhang Y, Xiang SY, Liu WM, Zhang YJ, Xu SW, Liu ZB. [Effect of electroacupuncture on pulmonary neuroendocrine cells and secretion of neuroactive substances in lung of COPD rats]. Zhen Ci Yan Jiu 2022; 47:305-313. [PMID: 35486009 DOI: 10.13702/j.1000-0607.20210609] [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: 06/14/2023]
Abstract
OBJECTIVE To observe the effect of electroacupuncture (EA) at "Zusanli" (ST36) and "Feishu" (BL13) on the activation and secretion of calcitonin gene-related peptide (CGRP) and 5-hydroxytryptamine (5-HT) of pulmonary neuroendocrine cells (PNECs) and inflammatory response in rats with chronic obstructive pulmonary disease (COPD), so as to explore its underlying mechanisms in treating COPD. METHODS Male SD rats were randomly divided into normal control, COPD model and EA groups, with 7 rats in each group. The COPD model was established by forced inhale of cigarette smoke for 1 h in a self-made box (1 m×1 m×1 m in volume), twice daily for 12 weeks. EA (4 Hz/20 Hz, 1-3 mA) was applied at bilateral ST36 and BL13 acupoints for 30 min, once a day for 14 consecutive days. The pulmonary function including the forced vital capacity (FVC), forced expiratory volume at 0.1 second (FEV0.1), FEV0.3, FEV0.1/FVC and FEV0.3/FVC was detected using a lung function analyzer for small animals. The lung tissue was sampled for observing histopathological changes by using H.E. staining, for observing expression and distribution of PNECs by Grimelius silver staining, and for detecting the immunoactivity (integrated optical density) of CGRP and 5-HT by using immunohistochemistry. The contents of CGRP, 5-HT, tumor necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and transforming growth factor-β1 (TGF-β1) in the bronchoalveolar lavage fluid (BALF) and lung tissue were detected by ELISA, and the correlations between TNF-α and CGRP, IL-1β and CGRP, TNF-α and 5-HT, and IL-1β and 5-HT levels were analyzed. The mRNA and protein expression levels of nerve fiber markers of CGRP and purinergic receptor P2X ligand gated ion channel 3 (P2X3) which dominate PNECs in the lung tissue were detected by real-time fluorescence quantitative PCR and Western blot, respectively. RESULTS Compared with the normal control group, the levels of FVC, FEV0.1, FEV0.3, and the ratios of FEV0.1/FVC and FEV0.3/FVC were significantly decreased (P<0.05, P<0.01), while the immunoactivity of PNECs, CGRP and 5-HT, the contents of CGRP, 5-HT, TNF-α, IL-1β and TGF-β1 in the BALF and lung tissue, and the expression levels of CGRP and P2X3 mRNAs and proteins in the lung tissue significantly increased in the COPD model group (P<0.01, P<0.05). Following EA intervention, both the increased and decreased levels of all the indexes mentioned above were reversed (P<0.05, P<0.01) except FEV0.3. H.E. staining showed severe deformed bronchial lumen with thickened wall and alveolar septum, and obvious inflammatory cell infiltration and reduced number of alveolar lumen fusion in the COPD model group, which was mild in the EA group. A positive correlation was found between TNF-α and CGRP, IL-1β and CGRP, TNF-α and 5-HT,IL-1β and 5-HT levels in both BALF and lung tissues (P<0.01). CONCLUSION EA at ST36 and BL13 can improve lung function and reduce inflammatory response in COPD rats, which may be related to its function in inhibiting the activation of PNECs and release of neuroactive substances.
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Affiliation(s)
- Cai-Yun Wang
- Graduate School, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Jing-Chao Su
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Xin-Fang Zhang
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Chen Cheng
- Graduate School, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Yi Zhang
- Graduate School, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Shui-Ying Xiang
- Institute of Acupuncture and Meridian, College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Wen-Mei Liu
- Graduate School, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Yu-Jie Zhang
- Graduate School, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Shu-Wen Xu
- Graduate School, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Zi-Bing Liu
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230038, China; Institute of Acupuncture and Meridian, College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
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Su JC, Zhang Y, Cheng C, Zhu YN, Ye YM, Sun YK, Xiang SY, Wang Y, Liu ZB, Zhang XF. Hydrogen regulates the M1/M2 polarization of alveolar macrophages in a rat model of chronic obstructive pulmonary disease. Exp Lung Res 2021; 47:301-310. [PMID: 34282696 DOI: 10.1080/01902148.2021.1919788] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
OBJECTIVE Chronic obstructive pulmonary disease (COPD) is a respiratory disease with high morbidity and mortality worldwide, so far there is no ideal treatment method. Previous studies have shown that hydrogen (H2) is involved in the treatment of COPD as an antioxidant. In this study, the effect of H2 on M1/M2 polarization of alveolar macrophages in COPD rats was observed, and its anti-inflammatory mechanism was further elucidated. Methods: Twenty-four Sprague-Dawley rats were randomly divided into three groups including the control, COPD and H2 group. A rat model of COPD was established by cigarette exposure combined with lipopolysaccharide (LPS) induction. H2 therapy was administered 2 hours per day for 14 days. Lung function and pathology were assessed. The levels of interleukin (IL)-6, tumor necrosis factor (TNF)-α, transforming growth factor (TGF)-β1 and IL-10 in bronchoalveolar lavage fluid (BALF) and lung tissue were measured by enzyme-linked immunosorbent assay. The mRNA, protein expression and immunoreactivity of inducible nitric oxide synthase (iNOS) and arginase (Arg)-1 in lung were observed by quantitative real-time PCR, western blot and immunohistochemistry. Results: Compared with the control rats, there were a significant decline in lung function, a marked inflammatory infiltration and pulmonary parenchymal remodeling and the increases of IL-6, TNF-α and TGF-β1 levels in BALF and lung tissue, but a lower expression of IL-10 in COPD rats. The iNOS mRNA and protein expression, as well as its optical density (OD), were increased significantly in lung tissue, while those of Arg-1 decreased significantly. H2 treatment improved the lung function and the parenchymal inflammation, reversed the increased levels of IL-6, TNF-α and TGF-β1, and the lower IL-10. Meanwhile, H2 also down-regulated the expression of iNOS, but up-regulated expression of Arg-1 in lung tissue. Conclusion: H2 reduces inflammation in the lung of COPD, which may be related to its inhibition of M1 type polarization and activation of M2 type polarization of alveolar macrophage.
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Affiliation(s)
- Jing-Chao Su
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yi Zhang
- Graduate School, Anhui University of Chinese Medicine, Hefei, Anhui, China.,College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Chen Cheng
- Graduate School, Anhui University of Chinese Medicine, Hefei, Anhui, China.,College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yi-Nan Zhu
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yu-Meng Ye
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yong-Kang Sun
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Shui-Ying Xiang
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yuan Wang
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Zi-Bing Liu
- College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui, China.,Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Xin-Fang Zhang
- College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui, China.,Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui, China
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Cheng C, Zhang XF, Su JC, Zhang Y, Li Y, Xiang SY, Wang CY, Wang Y, Su JJ, Liu ZB. [Effect of electroacupuncture on the expression of autophagy related protein in lung tissue of rats with chronic obstructive pulmonary disease]. Zhen Ci Yan Jiu 2021; 46:266-71. [PMID: 33931989 DOI: 10.13702/j.1000-0607.201155] [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: 11/12/2022]
Abstract
OBJECTIVE To observe the effect of electroacupuncture (EA) at "Zusanli" (ST36) and "Feishu" (BL13) on the expression of autophagy related proteins in the lung tissue of rats with chronic obstructive pulmonary disease (COPD), so as to explore the mechanism of EA underlying improvement of COPD. METHODS Thirty male SD rats were randomly divided into normal, model and EA groups (n=10 in each group). The COPD model was established by intratracheal infusion of Lipopolysaccharide (LPS, 1 mg/kg) and exposure in cigarette smoke. EA was applied to bilateral ST36 and BL13 for 30 min, once every other day for 2 weeks. The pulmonary function (forced vital capacity [FVC], forced expiratory volume in 0.1 s and 0.3 s [FEV0.1, FEV0.3], FEV0.1/FVC and FEV0.3/FVC) was detected by animal pulmonary function analysis system. Histopathological changes of the airway and lung were displayed by H.E. staining. Autophagosomes in the airway and lung tissues were observed by electron microscope. The expression of AMP activated protein kinase (AMPK), mammalian target of rapamycin (mTOR), Unc-51 like autophagy activating kinase 1(ULK1), autophagy related protein ATG6(Beclin1)mRNAs in lung tissue were examined by quantitative real-time PCR. The expression of AMPK, mTOR, ULK1, Beclin1 and microtubule-associated protein 1 light chain 3 (LC3)proteins in lung tissue were examined by Western blot. The contents of tumor necrosis factor α (TNF-α) and interleukin 6 (IL-6) in the broncho alveolar lavage fluid (BALF) were assayed by ELISA. RESULTS Following modeling, the FVC, FEV0.1, FEV0.3, FEV0.1/FVC and FEV0.3/FVC levels were significantly decreased (P<0.01), the infiltration of inflammatory cells and the increase of autophagosomes were obvious in airway and lung tissue, the mRNA and protein expression of AMPK, ULK1, Beclin1 and the ratio of LC3Ⅱ/LC3Ⅰ were increased (P<0.01), while the mRNA and protein expression of mTOR were decreased (P<0.01), the contents of TNF-α and IL-6 in the BALF were increased in the model group compared with the normal group (P<0.01). After EA intervention, all the indexes mentioned above were completely reversed in the EA group relevant to the model group (P<0.01, P<0.05). CONCLUSION EA at ST36 and BL13 can improve the lung function of COPD rats, which may be related to its effects in inhibiting the autophagy level and reducing the inflammation response in the lung.
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Affiliation(s)
- Chen Cheng
- Graduate School, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Xin-Fang Zhang
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Jing-Chao Su
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Yi Zhang
- Graduate School, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Yin Li
- Graduate School, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Shui-Ying Xiang
- Institute of Acupuncture and Meridian, College of Acupuncture-moxibustion and Massage, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Cai-Yun Wang
- Graduate School, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Yuan Wang
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Jing-Jing Su
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Zi-Bing Liu
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China; Institute of Acupuncture and Meridian, College of Acupuncture-moxibustion and Massage, Ministry of Education, Anhui University of Chinese Medicine, Hefei 230038, China
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Lin XG, Li W, Xiang SY, Wu SB, Zhang XF, Jiang CW, Liu ZB, Chen YN. [Electroacupuncture improves lung function by suppressing mucin-5AC mediated EGFR-p38MAPK signaling and inflammation reaction in chronic obstructive pulmonary disease rats]. Zhen Ci Yan Jiu 2021; 46:180-6. [PMID: 33798289 DOI: 10.13702/j.1000-0607.200420] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To observe the effect of electroacupuncture (EA) at "Zusanli"(ST36) on the expression of epidermal growth factor receptor (EGFR), tumor necrosis factor α(TNF-α) transfer growth factor α(TGF-α), interleukin-8(IL-8), p38 mitogen-activated protein kinases (p38MAPK), mucin-5AC (MUC5AC) and other related factors in chronic obstructive pulmonary disease (COPD) rats, so as to reveal its underlying mechanisms in improving COPD. METHODS A total of thirty male SD rats were randomly divided into normal control, model and EA groups, with 10 rats in each group. The COPD model was replicated using a combined method of tracheal infusion of lipopolysaccharide (LPS) and forced smoke-inhaling. EA (1-3 mA, 4 Hz/20 Hz) was applied to bilateral ST36 for 30 min, once daily for two consecutive weeks. The lung ventilation activities including the forced vital capacity (FVC) and forced expiratory volume (FEV) at 0.1 and 0.3 s (FEV0.1, FEV0.3) were detected. Histopathological changes of the middle lobe and bronchus of the right lung were observed after H.E. staining. The contents of TGF-α, TNF-α and IL-8 in the serum, bronchoalveolar lavage fluid (BALF) and superior lobe of the right lung were assayed by using ELISA, and the expression levels of EGFR, p38MAPK and MUC5AC proteins (inferior lobe of the left lung) and mRNAs (inferior lobe of the right lung) detected using Western blot, immunohistochemistry (strept avidin-biotin complex, SABC method) and real-time quantitative PCR, respectively. RESULTS Compared with the normal group, the FVC, FEV0.1, FEV0.3, FEV0.1/FVC and FEV0.3/FVC levels were significantly decreased (P<0.01), while the contents of TNF-α, TGF-α and IL-8 in the serum, BALF and lung tissues, expression levels of EGFR, p38MAPK and MUC5AC mRNAs and proteins, and the immunoactivity of EGFR, p38MAPK and MUC5AC in the lung tissues were significantly increased in the model group (P<0.01). After EA intervention, the decreased levels of the FVC, FEV0.1, FEV0.3, FEV0.1/FVC and FEV0.3/FVC, and the increased levels of the abovementioned genes and proteins were all reversed in the EA group (P<0.01, P<0.05). After modeling, the bronchial walls were thickened, with enlarged alveolar cavities, fractured alveolar walls, obvious inflammatory cell infiltration, and rich mucus secretion in the lumen, which was relatively milder in the EA group. CONCLUSION EA of ST36 can improve the ventilation function in COPD rats, which may be associated with its function in down-regulating the levels of TNF-α, TGF-α, IL-8, EGFR, p38MAPK and MUC5AC mRNAs and proteins in the lung tissues, inhibiting EGFR-p38MAPK signaling mediated expression of MUC5AC.
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Affiliation(s)
- Xian-Gang Lin
- College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Wei Li
- College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Shui-Ying Xiang
- College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Sheng-Bing Wu
- Xin'an Medicine of the Ministry of Education of the People's Republic of China, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Xin-Fang Zhang
- College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Chuan-Wei Jiang
- College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Zi-Bing Liu
- College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Ye-Nong Chen
- College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
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10
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Zhang XF, Xiang SY, Lu J, Li Y, Zhao SJ, Jiang CW, Liu XG, Liu ZB, Zhang J. Electroacupuncture inhibits IL-17/IL-17R and post-receptor MAPK signaling pathways in a rat model of chronic obstructive pulmonary disease. Acupunct Med 2021; 39:663-672. [PMID: 33715422 DOI: 10.1177/0964528421996720] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE Interleukin (IL)-17, as a T-helper 17 cell (Th17) cytokine, plays a key role in chronic obstructive pulmonary disease (COPD) pathophysiology including chronic inflammation and airway obstruction, which lead to decreased pulmonary function. The aim of this study was to investigate the effect of acupuncture on IL-17, its receptor (IL-17R) and the mitogen-activated protein kinase (MAPK) signaling pathway, in a rat model of COPD. METHODS The COPD model was induced in Sprague Dawley rats by exposure to cigarette smoke for 12 weeks. The model rats were treated with electroacupuncture (EA) at BL13 and ST36. The lung function and histology of the rats were observed. IL-17, tumor necrosis factor (TNF)-α, and IL-10 were detected by enzyme-linked immunosorbent assay (ELISA) in bronchoalveolar lavage fluid (BALF) and in plasma. The leukocytes and macrophages in the BALF were counted. The expression levels of IL-17R were assayed in lung tissue by real-time polymerase chain reaction (PCR), western blotting, and immunohistochemistry. MAPK signaling pathway molecules including c-Jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK)1/2 and p38, and their phosphorylated forms, were observed in the lung by western blotting. RESULTS Compared with the control group rats, lung function decreased and there was a severe inflammatory infiltration of the pulmonary parenchyma in the COPD rats. EA effectively improved lung function and alleviated the inflammatory infiltration in the lungs of COPD rats. EA also reversed the elevated total leukocyte and macrophage counts, the high levels of IL-17 and TNF-α, and the low IL-10 content in COPD rats. Meanwhile, EA downregulated the increased mRNA and protein expression of IL-17R, and significantly inhibited the elevated levels of phosphorylated JNK, ERK1/2, and p38 in the lungs of COPD rats. CONCLUSION Our results suggest that the protective effects of acupuncture therapy on the lungs of COPD rats are likely related to inhibition of IL-17/IL-17R and the post-receptor MAPK signaling pathways.
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Affiliation(s)
- Xin-Fang Zhang
- Department of Physiology, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China.,Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, China
| | - Shui-Ying Xiang
- Institute of Acupuncture and Meridian, Anhui University of Chinese Medicine, Hefei, China
| | - Jing Lu
- Department of Rehabilitation & Health Care, Anhui College of Traditional Chinese Medicine, Wuhu, China
| | - Yin Li
- Institute of Acupuncture and Meridian, Anhui University of Chinese Medicine, Hefei, China
| | - Shu-Jun Zhao
- Department of Physiology, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Chuan-Wei Jiang
- Department of Physiology, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Xiang-Guo Liu
- Department of Histology, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Zi-Bing Liu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, China.,Institute of Acupuncture and Meridian, Anhui University of Chinese Medicine, Hefei, China
| | - Jie Zhang
- Department of Immunology, Medical College of Nantong University, Nantong, China
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11
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Mi RH, Chen L, Liu J, Liu T, Wang K, Dong LH, Li X, He YZ, Liu ZB, Guo XJ, Guo SL, Zhao HM, Tang JH, Ma XM, Li YF, Wei XD. [Clinical analysis of 10 patients of acute promyelocytic leukemia with a variant RARα translocation]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:257-260. [PMID: 32311899 PMCID: PMC7357931 DOI: 10.3760/cma.j.issn.0253-2727.2020.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- R H Mi
- Henan Cancer Hospital/the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - L Chen
- Henan Cancer Hospital/the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - J Liu
- Henan Cancer Hospital/the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - T Liu
- Zhoukou Central Hospital, Zhoukou 466000,China
| | - K Wang
- Zhoukou Central Hospital, Zhoukou 466000,China
| | - L H Dong
- Henan Cancer Hospital/the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - X Li
- Henan University First Affiliated Hospital, Kaifeng 475004, China
| | - Y Z He
- Puyang City Oilfield General Hospital, Puyang 457001, China
| | - Z B Liu
- Puyang City Oilfield General Hospital, Puyang 457001, China
| | - X J Guo
- Puyang City Oilfield General Hospital, Puyang 457001, China
| | - S L Guo
- Luoyang Central Hospital, Luoyang 471099, China
| | - H M Zhao
- Henan University Huaihe Hospital, Kaifeng 475399, China
| | - J H Tang
- People's Liberation Army in the 988 Hospital (Kaifeng District), Kaifeng 475002, China
| | - X M Ma
- Pingdingshan First People's Hospital,Pingdingshan 467021, China
| | - Y F Li
- Henan Cancer Hospital/the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - X D Wei
- Henan Cancer Hospital/the Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
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Zhang XF, Ding MJ, Cheng C, Zhang Y, Xiang SY, Lu J, Liu ZB. Andrographolide attenuates oxidative stress injury in cigarette smoke extract exposed macrophages through inhibiting SIRT1/ERK signaling. Int Immunopharmacol 2020; 81:106230. [PMID: 32032850 DOI: 10.1016/j.intimp.2020.106230] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [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: 07/13/2019] [Revised: 01/03/2020] [Accepted: 01/19/2020] [Indexed: 10/25/2022]
Abstract
Andrographolide (AG), an ingredient extracted from traditional Chinese herbal medicine Andrographis paniculata, has been demonstrated to have potent anti-inflammatory and anti-oxidative stress properties. The purpose of this study was to investigate whether and how AG attenuated CSE-induced mitochondrial dysfunction, inflammation and oxidative stress in RAW 264.7 cells (a mouse macrophages line). The results showed that AG significantly reduced CSE-induced upregulation of pro-inflammatory cytokines (i.e., TNF-α and IL-1β) in the RAW 264.7 cells. AG inhibited CSE-induced production of reactive oxygen species (ROS) and prevented the reduction of superoxide dismutase (SOD) and glutathione/oxidized glutathione (GSH/GSSG) ratio, indicating the anti-oxidative stress effects of AG in macrophages. AG also improved mitochondrial function and mitochondrial membrane potential. In addition, AG inhibited CSE-induced increase of heme oxygenase (HO)-1, matrix metalloproteinase (MMP)-9 and MMP-12. Moreover, AG increased SIRT1 transcription and expression, suggesting AG inhibits mitochondrial dysfunction, inflammation and oxidative stress via a SIRT1 dependent signaling. We also demonstrated that AG inhibited CSE-induced ERK phosphorylation, and treatment with PD980589, a ERK inhibitor, reversed CSE-induced inflammation and oxidative stress. These results indicated that AG may prevent COPD via the inhibition of SIRT1/ERK signaling pathway, and subsequently inhibition of mitochondrial dysfunction, inflammation, and oxidative stress in macrophages.
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Affiliation(s)
- Xin-Fang Zhang
- Physiology Department, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China; Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China
| | - Ming-Jing Ding
- Department of Pulmonary and Critical Care Medicine, Chifeng Municipal Hospital, Chifeng Clinical Medical School of Inner Mongolia Medical University, Inner Mongolia 204000, China
| | - Chen Cheng
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China; College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China
| | - Yi Zhang
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China; College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China
| | - Shui-Ying Xiang
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China; College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China
| | - Jing Lu
- Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China
| | - Zi-Bing Liu
- Physiology Department, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China; Key Laboratory of Xin'an Medicine, Ministry of Education, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China; College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei, Anhui 230038, China.
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Li Y, Lu J, Zhang Y, Cheng C, Liu ZB. [Macrophages polarization and their role in chronic obstructive pulmonary disease]. Sheng Li Xue Bao 2019; 71:604-612. [PMID: 31440758] [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: 06/10/2023]
Abstract
Macrophages are highly plastic and can be polarized into classical activated macrophages (M1) and alternative activated macrophages (M2) under the induction of inflammatory factors and regulation of a variety of information molecules. Chronic pulmonary inflammation and pulmonary parenchyma injury are the main pathological manifestations of chronic obstructive pulmonary disease (COPD). M1 promotes pulmonary inflammation, whereas M2 inhibits inflammatory response, participates in lung tissue injury and repair, and swallows and removes pathogenic microorganisms and apoptotic cells. Target intervention in the polarization direction of macrophages may be a new strategy for COPD treatment.
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Affiliation(s)
- Yin Li
- Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Jing Lu
- Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Yi Zhang
- Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Chen Cheng
- Graduate School, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Zi-Bing Liu
- Acupuncture and Tuina College, Anhui University of Chinese Medicine, Hefei 230012, China.
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14
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Zhu WY, Gao ZW, Qi H, Lv LY, Liu ZB, Liu J, Hou J, Dai YH, She WD. [Analysis of prognostic factors in patients with refractory sudden sensorineural hearing loss]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:532-536. [PMID: 31163529 DOI: 10.13201/j.issn.1001-1781.2019.06.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Indexed: 11/12/2022]
Abstract
Objective:To explore the relationships between glucocorticoid (GC) sensitivity and the prognosis of refractory sudden sensorineural hearing loss (SSNHL), and to analyze the related factors being affected the prognosis of SSNHL. Method:Ninety-one refractory SSNHL patients were enrolled in the present investigation. Peripheral blood mononuclear cells (PBMCs) from the refractory SSNHL were extracted to conduct GC proliferation dexamethasone (DEX) inhibition experiments. All patients accepted comprehensive treatment with methylprednisolone. Result:Total effective rate was 40.66% in refractory SSNHL patients. Gender, number of affected ear, age, accompanying with vertigo, tinnitus or not and the procedure of methylprednisolone treatment were irrelevant to the efficacy. Only the inhibitory rate of DEX and the time from onset to visit were related to GC treatment effect, especially for inhibitory rate of DEX. The DEX inhibition rate of the effective group was higher than that of the ineffective group. Conclusion:DEX inhibition rate can predict GC sensitivity and prognosis of SSNHL. GC sensitivity and the time from onset to treatment are two important factors affecting the prognosis of refractory SSNHL patients..
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Affiliation(s)
- W Y Zhu
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China.,Department of Otorhinolaryngology, the Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University
| | - Z W Gao
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China
| | - H Qi
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School
| | - L Y Lv
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China
| | - Z B Liu
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China
| | - J Liu
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School
| | - J Hou
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School
| | - Y H Dai
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China.,Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School
| | - W D She
- Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital Clinical College of Nanjing Medical University, Nanjing, 210008, China.,Department of Otolaryngology Head and Neck Surgery, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School
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Yao CF, Hu WB, Hu L, Wang YL, Wang Y, Lin XG, Liu ZB. [Effect of moxibustion at "Guanyuan" (CV 4) and "Sanyinjiao" (SP 6) on bone morphology, metabolism and ERα of bone marrow mesenchymal stem cells in the ovariectomized rats]. Zhongguo Zhen Jiu 2019; 39:287-92. [PMID: 30942017 DOI: 10.13703/j.0255-2930.2019.03.016] [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: 11/06/2022]
Abstract
OBJECTIVE To observe the effects of moxibustion at "Guanyuan" (CV 4) and "Sanyinjiao" (SP 6) on bone morphology, metabolism and ERα of bone marrow mesenchymal stem cells (MSCs) in the ovariectomized rats and explore the underlying mechanism of moxibustion at Guanyuan (CV 4) and Sanyinjiao (SP 6) on the regulation of bone metabolism. METHODS A total of 60 SD rats were randomized into a normal group (20 rats) and an ovariectomy group (40 rats). In the normal group, no any treatment was provided. In the ovariectomy group, the classical ovariectomy was adopted to set up the osteoporosis model. In the 13th week after ovariectomy, 10 rats were collected from each of the normal group and the ovariectomy group for model identification. After model identification, the ovariectomy group was subdivided into a model group, an estradiol group and a moxibustion group, 10 rats in each one. In the normal group and the model group, the gavage was provided with 2 mL 0.9% sodium chloride solution, once a day. In the estradiol group, the gavage was provided with 17β-estradiol 100 μg/(kg•d), once a day. In the moxibustion group, moxibustion was applied at "Guanyuan" (CV 4) and "Sanyinjiao" (SP 6), 15 min at each acupoint, once a day. The 6 treatments were as one course, with 1 day of interval, 12 courses were required. After 12-week intervention, the dual-energy X-ray was adopted to determine the bone mineral density (BMD) and bone mineral content of the whole body in living condition. After sacrificed, HE staining was adopted to observe femur structure, the enzyme-linked immunosorbent assay was to determine the absorbance of estradiol (E2) and alkaline phosphatase (ALP) in serum and the real-time quantitative PCR method was to determine the mRNA expressions of ERα of MSCs in tibia and femur. RESULTS Compared with the model group, BMD was increased obviously in the pelvis and spine in the moxibustion group and the estradiol group (P<0.05, P<0.01). Compared with the model group, the bone mineral content was higher in the rib, pelvis and spine in the moxibustion group and the estradiol group, there was no statistically significant difference (all P>0.05). Compared with the model group, the bone trabeculas were stronger and well connected in the moxibustion group, indicated by HE staining. Compared with the model group, the concentrations of E2 in serum were increased obviously in the estradiol group and the moxibusiton group (both P<0.01), and ALP concentrations reduced obviously in the estradiol group and the moxibustion group (both P<0.001), the mRNA expressions of ERα in MSCs increased in the estradiol group and the moxibustion group (both P<0.001). CONCLUSION Moxibustion at "Guanyuan" (CV 4) and "Sanyinjiao" (SP 6) effectively increases BMD and bone strength in the ovariectomized rats and the mechanism may be related to the improvement of serum E2 concentration, the decrease of serum ALP concentration and the up-regulation of mRNA expression of ERα in MSCs.
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Affiliation(s)
- Chang-Feng Yao
- School of Acupuncture-Moxibustion and Tuina, Anhui University of CM, Hefei 230000, China
| | - Wu-Bin Hu
- the First Affiliated Hospital of Anhui University of CM
| | - Ling Hu
- School of Acupuncture-Moxibustion and Tuina, Anhui University of CM, Hefei 230000, China
| | - Ya-Ling Wang
- School of Acupuncture-Moxibustion and Tuina, Anhui University of CM, Hefei 230000, China
| | - Yu Wang
- School of Acupuncture-Moxibustion and Tuina, Anhui University of CM, Hefei 230000, China
| | - Xian-Gang Lin
- School of Acupuncture-Moxibustion and Tuina, Anhui University of CM, Hefei 230000, China
| | - Zi-Bing Liu
- School of Acupuncture-Moxibustion and Tuina, Anhui University of CM, Hefei 230000, China
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16
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Lu J, Xie JJ, Xiang SY, Li Y, Cong WJ, Lin XG, Liu ZB. [Electroacupuncture Improves Pulmonary Function of Rats with Chronic Obstructive Pulmonary Disease by Down-regulating Inflammatory Reaction and Expression of Macrophage Migration Inhibitory Factor/CD 74-CD 44/p 38 MAPK Signaling in Lung Tissues]. Zhen Ci Yan Jiu 2018; 43:759-66. [PMID: 30585452 DOI: 10.13702/j.1000-0607.180494] [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: 11/12/2022]
Abstract
OBJECTIVE To observe the effect of electroacupuncture (EA) at "Zusanli" (ST 36) and "Feishu" (BL 13) on pulmonary function, inflammatory reaction and expression of macrophage migration inhibitory factor (MIF) and its receptor complex CD 74-CD 44, etc. in rats with chronic obstructive pulmonary disease (COPD), so as to explore its mechanism underlying improvement of COPD. METHODS Thirty male SD rats were randomly divided into normal, model and EA groups (n=10 in each group). The COPD model was established by intratracheal infusion of Lipopolysaccharide (LPS, 1 mg/mL) and forced smoke-inhaling. EA was applied to bilateral ST 36 and BL 13 for 30 min, once daily for 7 days. The rat's lung function (forced vital capacity [FVC], forced expiratory capacity ratio ([FEV 0.1/FVC] and [FEV 0.3/FVC]) was detected under anesthesia. Pathological changes of the lung tissue were detected by H.E. staining, and the contents of MIF, tumor necrosis factor-α (TNF-α), interleukin-1 β (IL-1 β) and IL-8 in serum, bronchoalveolar lavage fluid (BALF) and lung tissue were assayed by ELISA. The immunoactivity of CD 74 and CD 44 was detected by immunohistochemistry, and the expression levels of MIF, CD 74, CD 44 and p 38 MAPK mRNAs and proteins were examined by quantitative RT-PCR and Western blot, respectively. RESULTS Compared with the normal group, the FVC, FEV 0.1, FEV 0.3, FEV 0.1/FVC and FEV 0.3/FVC levels were significantly decreased in the model group (P<0.01). After EA treatment, the FVC, FEV 0.1, FEV 0.3, FEV 0.1/FVC and FEV 0.3/FVC were significantly increased (P<0.01, P<0.05), suggesting an improvement of the pulmonary function after EA. H.E. staining showed that the severity of modeling induced alveolar expansion and inflammatory cell infiltration in the lung tissue was relatively milder in the EA group relevant to the model group. The contents of MIF, TNF-α, IL-1 β and IL-8 in the serum, BALF and lung tissues were significantly higher in the model group than in the normal group (P<0.01), and significantly down-regulated in the EA group relevant to the model group (P<0.01). The expression levels of MIF, CD 74, CD 44 and p 38 MAPK mRNAs and proteins and the immunoactivity levels of CD 74, CD 44 in the lung tissue were obviously higher in the model group than those in the normal group (P<0.01), and considerably lower in the EA group than those in the model group (P<0.01). There was a positive correlation between p 38 MAPK and MIF in mRNA and protein expression levels (P<0.01). CONCLUSION EA intervention can improve the pulmonary function in COPD rats, which may be related to its effects in inhibiting inflammatory reaction, and MIF/CD 74-CD 44/p 38 MAPK signaling pathway.
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Affiliation(s)
- Jing Lu
- Graduate School, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Jing-Jing Xie
- College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Shui-Ying Xiang
- College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Yin Li
- Graduate School, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Wen-Juan Cong
- Graduate School, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Xian-Gang Lin
- College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
| | - Zi-Bing Liu
- College of Acupuncture-moxibustion and Massage, Anhui University of Chinese Medicine, Hefei 230038, China
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Zhang XF, Xiang SY, Geng WY, Cong WJ, Lu J, Jiang CW, Wang K, Liu ZB. Electro-acupuncture regulates the cholinergic anti-inflammatory pathway in a rat model of chronic obstructive pulmonary disease. J Integr Med 2018; 16:418-426. [PMID: 30341024 DOI: 10.1016/j.joim.2018.10.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 06/27/2018] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Acupuncture has a definite therapeutic effect on chronic obstructive pulmonary disease (COPD), and the cholinergic anti-inflammatory pathway (CAP) has been shown to be involved in regulation of inflammation. In this study, we investigated whether electro-acupuncture (EA) affects the CAP in COPD. METHODS Sprague-Dawley rats were induced into COPD through exposure to cigarette smoke combined with lipopolysaccharide. EA treatment was applied at Zusanli (ST36) and Feishu (BL13) points for 30 min/d for 7 d. Seventy-two rats were randomly divided into six study groups, including normal, normal + EA, normal + α-bungarotoxin (α-BGT) (the antagonist of the nicotinic acetylcholine receptor α7 subunit (α7nAChR)) + EA, COPD, COPD + EA, and COPD + α-BGT + EA. Lung function, pathology and vagus nerve discharge were tested. The levels of acetylcholine (ACh), acetylcholinesterase (AChE), interleukin-6 (IL-6) and tumor necrosis factor-α (TNF-α) in bronchoalveolar lavage fluid (BALF) and lung tissue were measured by enzyme-linked immunosorbent assay. The mRNA and protein expression and immunoreactivity of α7nAChR and its postreceptor inflammation signal pathway, including janus kinase 2 (JAK2), signal transducers and activators of transcription 3 (STAT3), nuclear factor-κB (NF-κB), were observed by quantitative reverse transcription-polymerase chain reaction, Western blot and immunohistochemistry. RESULTS Compared with normal rats, there were a significant decline in lung function and discharge of the vagus nerve (P < 0.01), a marked sign of lung inflammation and an increase of ACh, AChE, IL-6 and TNF-α level in BALF or lung tissue (P < 0.05, P < 0.01) and higher expression of α7nAChR, JAK2, STAT3 and NF-κB (P < 0.05, P < 0.01) in the COPD rats. In rats receiving EA, the lung function and vagal discharge were enhanced (P < 0.01), lung inflammation was improved and the levels of ACh, AChE, IL-6 and TNF-α were decreased (P < 0.01). Further, the expression of α7nAChR, JAK2, STAT3 and NF-κB was downregulated (P < 0.05, P < 0.01). However, the above effects of EA were blocked in rats injected with α-BGT (P < 0.01). CONCLUSION EA treatment can reduce the lung inflammatory response and improve lung function in COPD, which may be related to its involvement in the regulation of CAP.
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Affiliation(s)
- Xin-Fang Zhang
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, Anhui Province, China
| | - Shui-Ying Xiang
- Institute of Acu-Moxibustion and Meridian, College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei 230012, Anhui Province, China
| | - Wen-Ye Geng
- Institute of Integrative Medicine, Fudan University, Shanghai 200040, China; Department of Thoracic Surgery, Qingpu Traditional Chinese Medicine Hospital, Shanghai 201700, China
| | - Wen-Juan Cong
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, Anhui Province, China; Institute of Acu-Moxibustion and Meridian, College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei 230012, Anhui Province, China
| | - Jing Lu
- Institute of Acu-Moxibustion and Meridian, College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei 230012, Anhui Province, China
| | - Chuan-Wei Jiang
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, Anhui Province, China; Institute of Acu-Moxibustion and Meridian, College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei 230012, Anhui Province, China
| | - Kun Wang
- Institute of Acu-Moxibustion and Meridian, College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei 230012, Anhui Province, China
| | - Zi-Bing Liu
- Department of Physiology, College of Integrated Traditional Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei 230012, Anhui Province, China; Institute of Acu-Moxibustion and Meridian, College of Acupuncture and Tuina, Anhui University of Chinese Medicine, Hefei 230012, Anhui Province, China.
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Zhu H, Wang F, Guo XY, Li LQ, Duan DB, Liu ZB, Yang Z. [Preparation, quality control and thyroid molecule imaging of solid-target based radionuclide ioine-124]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:364-367. [PMID: 29643541] [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: 06/08/2023]
Abstract
OBJECTIVE To provide useful information for the further production and application of this novel radio-nuclide for potential clinical application. METHODS 124Te (p,n) 124I nuclide reaction was used for the 124I production. Firstly, the target material, 124TeO2 (200 mg) and Al2O3 (30 mg) mixture, were compressed into the round platinum based solid target by tablet device. HM-20 medical cyclotron was applied to irradiate the solid target slice for 6-10 h with helium and water cooling. Then, the radiated solid target was placed for 12 h (overnight) to decay the radioactive impurity; finally, 124I was be purified by dry distillation using 1 mL/min nitrogen for about 6 hours and radiochemical separation methods. Micro-PET imaging studies were performed to investigate the metabolism properties and thyroid imaging ability of 124I.After 740 kBq 124I was injected intravenously into the tail vein of the normal mice, the animals were imaged with micro-PET and infused with CT. The micro-PET/CT infusion imaging revealed actual state 124I's metabolism in the mice. RESULTS It was been successfully applied for 200 mg 124TeO2 plating by the tablet device on the surface of platinum. It showed smooth, dense surface and without obviously pits and cracks. The enriched 124Te target was irradiated for 6 to 10 hours at about 12.0 MeV with 20 μA current on HM-20 cyclotron. Then 370-1 110 MBq 124I could be produced on the solid target after irradiation and 370-740 MBq high specific activity could be collected afterdry distillation separation and radio-chemical purification.124I product was finally dissolved in 0.01 mol/L NaOH for the future distribution. The gamma spectrum of the produced 124I-solution showed that radionuclide purity was over 80.0%. The micro-PET imaging of 124I in the normal mice exhibited the thyroid and stomach accumulations and kidney metabolism, the bladder could also be clearly visible, which was in accordance with what was previously reported. To the best of our knowledge, it was the first production of 124I report in China. CONCLUSION In this study, the preparation of 124TeO2 solid target was successfully carried out by using the tablet device. After irradiation of the 124TeO2 solid target and radio-chemical purification, we successfully produced 370-740 MBq high specific activity 124I by a cyclotron for biomedical application, and micro-PET imaging of 124I in normal mice exhibited the thyroid accumulations. Also, slight uptake in stomach were also monitored with almost nonuptake in other organs in the micro-PET imaging. The production of 124I is expected to provide a new solid target radionuclide for the scientific research and potential clinical application of our country.
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Affiliation(s)
- H Zhu
- Department of Nuclear Medicine, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - F Wang
- Department of Nuclear Medicine, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - X Y Guo
- Department of Nuclear Medicine, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - L Q Li
- Department of Nuclear Medicine, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - D B Duan
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Z B Liu
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Z Yang
- Department of Nuclear Medicine, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
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Zhang XF, Qin Q, Geng WY, Jiang CW, Liu Y, Liu XL, Li J, Liu ZB. Electroacupuncture reduces hypothalamic and medullary expression of orexins and their receptors in a rat model of chronic obstructive pulmonary disease. Acupunct Med 2018; 36:312-318. [PMID: 29669795 DOI: 10.1136/acupmed-2017-011391] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/22/2017] [Indexed: 01/05/2023]
Abstract
OBJECTIVES Decreased lung function in chronic obstructive pulmonary disease (COPD) is correlated with abnormal excitability of the respiratory centre where orexin neuropeptides from the hypothalamus are responsible for regulating respiration. We hypothesised that improvements in pulmonary function with electroacupuncture (EA) may be related to orexins in a rat model of COPD. METHODS The COPD model was established by cigarette smoke exposure and lipopolysaccharide injection. Modelled rats received EA at BL13 and ST36 for two weeks, after which lung function was tested. Orexin levels in the hypothalamus and medulla were detected by ELISA, while mRNA/protein expression and localisation of orexins and their receptors were investigated using real time PCR, Western blotting and immunohistochemistry, respectively. RESULTS The decrease in lung function observed in COPD rats was improved after EA treatment. Orexin levels in the hypothalamus and medulla were significantly higher in COPD rats than in normal rats, but were significantly reduced in the EA-treated group. There was a negative correlation between orexin content and lung function. In the hypothalamus, mRNA and protein expression and immunoreactivity of orexins were significantly higher in the COPD group than in the normal group, but a significant decrease was observed after EA. In the medulla, the expression and immunoreactivity of orexin receptors were significantly higher in the COPD group than in the normal group, but a significant decrease was observed after EA. CONCLUSIONS The positive effect of EA on pulmonary function in COPD rats may be related to downregulation of orexins and their receptors in the medulla.
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Affiliation(s)
- Xin-Fang Zhang
- Department of Physiology, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Qin Qin
- College of Nursing, Anhui University of Chinese Medicine, Hefei, China
| | - Wen-Ye Geng
- Department of Pharmacology, Shanghai Medical College of Fudan University, Shanghai, China
| | - Chuan-Wei Jiang
- Department of Physiology, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Yong Liu
- Department of Physiology, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China
| | - Xiao-Li Liu
- Institute of Acu-Moxibustion and Meridian, College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei, China
| | - Jing Li
- Institute of Acu-Moxibustion and Meridian, College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei, China
| | - Zi-Bing Liu
- Department of Physiology, College of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, China.,Institute of Acu-Moxibustion and Meridian, College of Acupuncture and Massage, Anhui University of Chinese Medicine, Hefei, China
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20
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Zheng WQ, Chen HY, Liu MM, Adjou Moumouni PF, Efstratiou A, Liu ZB, Xuan XN. First evidence of Mycoplasma haemocanis in China. Trop Biomed 2017; 34:983-990. [PMID: 33592969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Previous studies show heamotropic Mycoplasma infection frequently occurs among splenectomized, immuno-suppressive or co-infected dog populations. However, in our study, the detection of 162 blood samples from dogs found 3 healthy, female dogs infected with Mycoplasma haemocanis in southeastern China. These infected dogs were grown in dog breeding center and had a history of tick infestation. This is the first molecular report of M. haemocanis in dogs from China. The 16S rRNA gene was partially sequenced and a phylogenetic tree constructed. Mycoplasma spp. was 99.9%-100% identical to the corresponding gene sequences of M. haemocanis and M. haemofelis available in GenBank. In this study, Mycoplasma spp. was identified as M. haemocanis because the bacterium was obtained from dogs.
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Affiliation(s)
- W Q Zheng
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
- Department of Disinfection and Vector Control, Nanchang Center for Disease Control and Prevention, Nanchang, Jiangxi 330038, China
| | - H Y Chen
- Department of Disinfection and Vector Control, Nanchang Center for Disease Control and Prevention, Nanchang, Jiangxi 330038, China
| | - M M Liu
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - P F Adjou Moumouni
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - A Efstratiou
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
| | - Z B Liu
- Nanchang Police Dog Base of the Ministry of Public Security, Nanchang, Jiangxi 330100, China
| | - X N Xuan
- National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine, Obihiro, Hokkaido 080-8555, Japan
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Liu ZB, Cao B. [Initial therapy of invasive candidiasis: echinocandin or fluconazole?]. Zhonghua Nei Ke Za Zhi 2017; 56:774-776. [PMID: 29036964 DOI: 10.3760/cma.j.issn.0578-1426.2017.10.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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22
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Jia YJ, Liu ZB, Wang WG, Sun CB, Wei P, Yang YL, You MJ, Yu BH, Li XQ, Zhou XY. HDAC6 regulates microRNA-27b that suppresses proliferation, promotes apoptosis and target MET in diffuse large B-cell lymphoma. Leukemia 2017; 32:703-711. [PMID: 29135973 DOI: 10.1038/leu.2017.299] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 09/01/2017] [Accepted: 09/12/2017] [Indexed: 12/22/2022]
Abstract
Diffuse large B-cell lymphoma (DLBCL) is the most common type of non-Hodgkin lymphoma. Histone deacetylase 6 (HDAC6) is frequently altered in DLBCL and inhibition of HDAC6 has potent anti-tumor effects in vitro and in vivo. We profiled miRNAs that altered in the HDAC6 knockdown DLBCL cells with NanoString nCounter assay and identified microRNA-27b (miR-27b) as the most significantly increased miRNA. We validated decreased expression of miR-27b in DLBCL tissues, and we found that low expression of miR-27b was associated with poor overall survival of patients with DLBCL. In addition, forced expression of miR-27b suppressed DLBCL cell viability and proliferation in vitro, and inhibited tumor growth in vivo. Mechanistically, Rel A/p65 is found to negatively regulate miR-27b expression, and its acetylation and block of nuclear translocalization caused by HDAC6 inhibition significantly elevates miR-27b expression. Furthermore, miR-27b targets MET and thus represses the MET/PI3K/AKT pathway. These findings highlight an important role of miR-27b in the development of DLBCL and uncover a HDAC6-Rel A/p65-miR-27b-MET signaling pathway. Elevating miR-27b through HDAC6 inhibition would be a promising strategy for DLBCL treatment.
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Affiliation(s)
- Y J Jia
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Z B Liu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China.,Department of Pathology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| | - W G Wang
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - C B Sun
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - P Wei
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - Y L Yang
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - M J You
- Department of Hematopathology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,The University of Texas MD Anderson Cancer Center, UT Health Graduate School of Biomedical Sciences, Houston, TX, USA
| | - B H Yu
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - X Q Li
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
| | - X Y Zhou
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China.,Institute of Pathology, Fudan University, Shanghai, China
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Su CF, Liu ZB, Li YG. Influence of various quantitative trait loci (QTL) mapping methods on the mapping accuracy under varying heritability levels. Genet Mol Res 2015; 14:13003-12. [PMID: 26505453 DOI: 10.4238/2015.october.21.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The study of quantitative trait effects is of great significance for molecular marker-assisted breeding. The accuracy of quantitative trait loci (QTL) mapping is the key factor affecting marker-assisted breeding, and is extremely significant. The effect of different heritability rates (10, 30, 50, 70, and 90%) on the accuracy of QTL mapping of five recombinant inbred lines (RILs) were analyzed via computer simulation. RILs display additive and epistatic genetic effects. The QTLs were analyzed using four different mapping procedures: multiple QTL model (MQM), composite interval mapping (CIM), multiple interval mapping (MIMR), and inclusive composite interval mapping (ICIM). The results revealed an increase in the QTL mapping accuracy and QTL detection power, and a decrease in the QTL interval range with the increase in heritability; conversely, an irregular number of false positive QTLs were generated. CIM and MQM only screen the additive and dominant effects; MIMR and ICIM screen the additive, dominant, and epistatic effects. The highest QTL detection power obtained using MQM and CIM was only 75%, while MIMR and ICIM showed a detection power of 100%. At heritability rates of more than 50 and less than 10%, the detection powers of the MIMR and ICIM procedures were >95 and <35%, respectively. QTL mapping has no significance at heritability rates <10%. The results of this study suggest that QTL mapping has significance at a heritability rate >30% (at least >10%) for practical marker-assisted breeding.
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Affiliation(s)
- C F Su
- Department of Life Sciences, Liupanshui Normal University, Liupanshui, Guizhou, China
| | - Z B Liu
- Department of Life Sciences, Liupanshui Normal University, Liupanshui, Guizhou, China
| | - Y G Li
- Department of Life Sciences, Liupanshui Normal University, Liupanshui, Guizhou, China
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Han YS, Xu Y, Han YZ, Xu L, Liu XG, Liu ZB, Wang P. [Protective effect of electroacupuncture intervention on neurovascular unit in rats with focal cerebral ischemia-reperfusion injury]. Zhen Ci Yan Jiu 2013; 38:173-180. [PMID: 24006660] [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: 06/02/2023]
Abstract
OBJECTIVE To observe the effect of electroacupuncture (EA) intervention on behavior changes, expression of cerebral vascular endothelial growth factor (VEGF), nerve growth associated protein-43 (GAP-43), synaptophysin (SYN), myelin basic protein (MBP), neurite outgrowth inhibitor-A (Nogo-A) in cerebral focal ischemia-reperfusion injury (CI/RI) rats, so as to study its mechanism underlying improvement of ischemic cerebral vascular disease. METHODS Sixty male SD rats were randomly divided into sham-operation group, model group and electroacupuncture (EA) group. CI/RI model was established by occlusion of the middle cerebral artery (MCAO) and reperfusion. EA was applied to bilateral "Neiguan" (PC 6), "Sanyinjiao" (SP 6), "Shuigou" (GV 26) and "Baihui" (GV 20) for 30 min, once a day for 14 days. The neurologic deficits were evaluated by Longa 5-grade standard (the higher the score, the severer the neurologic deficit). The immunoactivity of cerebral VEGF, GAP-43, SYN, MBP (important in the process of myelination of nerves in the nervous system) and Nogo-A (inhibiting axonal regeneration) in the focal ischemic cerebral tissue was detected by immunohistochemistry. RESULTS The Longa's score of the model group was significantly increased after MCAO in comparison with the sham-operation group (P < 0.01). In comparison with the model group, Longa's score of the EA group was evidently lower on day 14 after CI/RI (P < 0.05), suggesting an improvement of the neurological deficits after EA intervention. In comparison with the sham-operation group, the immunoactivity of cerebral VEGF, GAP-43 and Nogo-A was significantly upregulated on day 7 and 14 in the model group (P < 0.01), while that of cerebral SYN was remarkably down-regulated in the model group on day 7 and 14 after CI/RI (P < 0.05). Compared with the model group, cerebral VEGF, GAP-43, SYN and MBP expression levels were considerably upregulated on day 7 and 14 following CI/RI in the EA group (P < 0.01, P < 0.05), while that of cerebral Nogo-A was significantly decreased at the two time-points in the EA group (P < 0.01). CONCLUSION EA intervention can effectively improve neurological function in cerebral infarction rats, which is closely related to its effects in upregulating cerebral VEGF, GAP-43, SYN and MBP expression, and down-regulating Nogo-A protein, suggesting a protective effect on neurovascular unit.
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Affiliation(s)
- Yong-Sheng Han
- Institute of Neurology, Anhui College of Chinese Medicine, Hefei 230061, China
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Hou YF, Ma XY, Liu ZB, Yu SJ, Shao ZM. P3-17-08: Macroautophagy Protects Breast Cancer MCF-7 Cells from TAM-Induced Apoptosis Via Mitogen-Activated Protein Kinase (MAPK) Pathway. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p3-17-08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Tamoxifen (TAM) has been used ubiquitously for endocrine therapy for the hormone-sensitive breast cancer. Several studies have revealed that tamoxifen treatment induced apoptosis and at the same time tamoxifen increased autophagic levels in MCF-7 cells. The previous studies attempt to elaborate the significance and mechanism of autophagy induced by TAM in breast cancer cells, however, there are contradictions among their conclusions, it is still not clear that autophagy protects MCF-7 from apoptosis or promotes apoptosis. Better understanding of the effect of autophagy induced by TAM in breast cancer cells on apoptosis will be of the important clinical significance in endocrine therapy for breast cancer.
The present study shows that tamoxifen treatment significantly increased autophagic levels by inducing autophagic vacuoles formation in MCF-7 cells observed by means of transmission electron microscopy and enhancing the expression of autophagy marker, icrotubule-associated protein light chain 3 measured by Western blot. Our research shows tamoxifen enhanced the phosphorylation of MAPKs when inducing autophagy and autophagy decreased significantly when kinase inhibitors were separately used to inhibit the phosphorylation of ERK, JNK, p38 MAPK. MAPK signal transduction pathway was involved in the process of autophagy in MCF-7 cells.
To investigate whether Estrogen receptor-α participated in autophagy caused by tamoxifen, we constructed Estrogen receptor-α gene ESR/1 shRNA expression vector and it could effectively inhibit the expression of ER-α in MCF-7 cells. Our research shows that autophagy was decreased with the downregulation of ER-α, so we conclude that Estrogen receptor-a also involved in autophagy induced by tamoxifen in MCF-7 cells.
To find out the specifical role of autophagy in tamoxifen treated breast cancer cell MCF-7, we inhibited autophagy producing after tamoxifen treatment by pretreating the cells with chloroquine and 3-methyladenine, both commonly used as autophagy inhibitors. Another method for autophagy inhibition was Becline-1 siRNA transfection into MCF-7 cells. Than we stained MCF-7 cells with anti-Annexin V FITC and PI and examinated apoptotic rate by flow cytometer and we also detected activity of caspase7 in MCF-7 cells. The results indicate that inhibition of autophagy by the methods mentioned induced higher apoptotic level, therefore, autophagy protected MCF-7 from apoptosis and inhibiting autophagy may be a new strategy to augment the theraputic effect of tamoxifen treatment. In our study, we induced breast cancer cell MCF-7 resistant to TAM in vitro and we found much higher autophagic level in TAM resisitant cells compared with TAM not resisitant MCF-7 cells. We draw the conclusion that inhibition of autophagy induced by tamoxifen may be a new therapy for tamoxifen resisitant breast cancer.
Key words: tamoxifen, breast cancer, autophagy, MCF-7 cells, MAPKs, estrogen receptor, inhibition, apoptosis
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P3-17-08.
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Affiliation(s)
- YF Hou
- 1Cancer Institute, Shanghai, China
| | - XY Ma
- 1Cancer Institute, Shanghai, China
| | - ZB Liu
- 1Cancer Institute, Shanghai, China
| | - SJ Yu
- 1Cancer Institute, Shanghai, China
| | - ZM Shao
- 1Cancer Institute, Shanghai, China
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Liu ZB, Song NN, Geng WY, Jin WZ, Li L, Cao YX, Qian Y, Zhu DN, Shen LL. Orexin-A and respiration in a rat model of smoke-induced chronic obstructive pulmonary disease. Clin Exp Pharmacol Physiol 2011; 37:963-8. [PMID: 20528981 DOI: 10.1111/j.1440-1681.2010.05411.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
1. Orexins are neuropeptides synthesized in the hypothalamus that regulate many physiological functions, including energy homeostasis, stress responses, sleep/wake states etc. It is now emerging that orexins may also regulate breathing, but little is known as to how they do this, particularly in chronic obstructive pulmonary disease (COPD). In the present study, we used a rat model of cigarette smoke-induced COPD to investigate orexin-A expression in the hypothalamus and medulla and its effect on respiration. 2. Sprague-Dawley rats were exposed to cigarette smoke (1 h twice daily) for 12 weeks. Lung function and pathological changes associated with inflammation and emphysema were determined to confirm the validity of the COPD model. 3. Hypothalamic and medullary orexin-A levels, as determined by radioimmunoassay, were higher in smoke-exposed than control rats. Furthermore, the expression of prepro-orexin (PPO) mRNA in the hypothalamus and orexin OX(1) receptor mRNA in the medulla, as determined by real-time quantitative polymerase chain reaction, was higher in smoke-exposed than control rats. 4. The number of orexin-A-positive neurons in the hypothalamus and OX(1) and OX(2) receptor-positive neurons in the ventrolateral medulla was higher in smoke-exposed than control rats. 5. Microinjection of orexin-A (1 μmol/L, 0.1 μL) into the pre-Bötzinger complex enhanced phrenic nerve discharge to a greater extent in smoke-exposed compared with control rats (61% vs 36%, respectively). 6. The findings of the present study demonstrate that the increased respiratory activity in smoke-exposed rats is due to an increase in orexin-A as well as upregulation of orexin receptors in the ventrolateral medulla.
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Affiliation(s)
- Zi-Bing Liu
- Department of Physiology and Pathophysiology, Shanghai Medical College, Fudan University, Shanghai, China
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Liu ZB, Shen LL. [The role of orexin neurons in the hypothalamus in regulating respiratory activity]. Sheng Li Ke Xue Jin Zhan 2010; 41:201-204. [PMID: 21416981] [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: 05/30/2023]
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28
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Qin ZQ, Yi XY, Zeng QR, Zeng XF, Liu ZB, Zhang SK. [Comparative study on the efficacy of KLH-IDT and SEA-IDT in diagnosing schistosomiasis japonica]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:103-5. [PMID: 12212187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Thirty-three egg-positive subjects and 32 egg-negative subjects were tested synchronously by KLH-IDT and SEA-IDT in endemic area of schistosomiasis. Compared with stool examination, the positive coincidence rate of KLH-IDT and SEA-IDT were 90% and 100%, respectively, which showed no statistical significance(P > 0.05), and the negative coincidence rate of KLH-IDT and SEA-IDT were 71.9% and 25%, respectively, which showed statistical significance(P < 0.01). Of the 31 egg-negative subjects, 9 subjects showed positive by both SEA-IDT and KLH-IDT, and 15 subjects showed positive by SEA-IDT but negative by KLH-IDT. Both double positive subjects and single positive subjects were examined further by miracidium hatching test, there were 2 subjects showing positive among the 9 double positive subjects. In addition, of 27 subjects that had been treated one year before, only 6 subjects showed positive by KLH-IDT, the reversion rate was 77.8%; whereas, the reversion rate was 22.2% (6/21) by SEA-IDT. The results suggest that KLH-IDT has high value in diagnosing schistosomiasis, particularly shows a potential in assessing therapeutic efficacy of schistosomiasis.
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Affiliation(s)
- Z Q Qin
- Department of Parasitology, Hunan Medical University, Changsha 410078
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Zhao JY, Song WD, Liu ZB. [Relationship between lipid peroxidase and superoxide dismutase in bronchoalveolar lavage fluid and pulmonary qi deficiency syndrome]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1996; 16:405-7. [PMID: 9387733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Investigating the levels of lipid peroxidase (LPO) and superoxide dismutase (SOD) in serum, bronchoalveolar lavage fluid (BALF) and alveolar macrophage (AM) were determined in 40 chronic bronchitis patients with Pulmonary Qi Deficiency (PQD) Syndrome and 36 normal subjects. Results showed: (1) No significant differences were found between PQD syndrome and normal subjects on serum SOD or LPO levels. (2) Patients with PQD Syndrome. LPO level in BALF was significantly higher, and SOD significantly lower, when compared with normal subjects. (3) Through correlation analysis, it was found in BALF that SOD level was markedly correlated with AM, while LPO was significantly correlated with neutrophil. In short, SOD and LPO in BALF play an important role in the development of the PQD Syndrome, and are good indications in evaluating the PQD Syndrome.
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30
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Ulmasov T, Liu ZB, Hagen G, Guilfoyle TJ. Composite structure of auxin response elements. Plant Cell 1995. [PMID: 7580254 DOI: 10.2307/3870023] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The auxin-responsive soybean GH3 gene promoter is composed of multiple auxin response elements (AuxREs), and each AuxRE contributes incrementally to the strong auxin inducibility to the promoter. Two independent AuxREs of 25 bp (D1) and 32 bp (D4) contain the sequence TGTCTC. Results presented here show that the TGTCTC element in D1 and D4 is required but not sufficient for auxin inducibility in carrot protoplast transient expression assays. Additional nucleotides upstream of TGTCTC are also required for auxin inducibility. These upstream sequences showed constitutive activity and no auxin inducibility when part or all of the TGTCTC element was mutated or deleted. In D1, the constitutive element overlaps the 5' portion of TGTCTC; in D4, the constitutive element is separated from TGTCTC. An 11-bp element in D1, CCTCGTGTCTC, conferred auxin inducibility to a minimal cauliflower mosaic virus 35S promoter in transgenic tobacco seedlings as well as in carrot protoplasts (i.e., transient expression assays). Both constitutive elements bound specifically to plant nuclear proteins, and the constitutive element in D1 bound to a recombinant soybean basic leucine zipper transcription factor with G-box specificity. To demonstrate further the composite nature of AuxREs and the ability of the TGTCTC element to confer auxin inducibility, we created a novel AuxRE by placing a yeast GAL4 DNA binding site adjacent to the TGTCTC element. Expression of a GAL4-c-Rel transactivator in the presence of this novel AuxRE resulted in auxin-inducible expression. Our results indicate that at least some AuxREs have a composite structure consisting of a constitutive element adjacent to a conserved TGTCTC element that confers auxin inducibility.
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Affiliation(s)
- T Ulmasov
- Department of Biochemistry, University of Missouri, Columbia 65211, USA
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Abstract
The auxin-responsive soybean GH3 gene promoter is composed of multiple auxin response elements (AuxREs), and each AuxRE contributes incrementally to the strong auxin inducibility to the promoter. Two independent AuxREs of 25 bp (D1) and 32 bp (D4) contain the sequence TGTCTC. Results presented here show that the TGTCTC element in D1 and D4 is required but not sufficient for auxin inducibility in carrot protoplast transient expression assays. Additional nucleotides upstream of TGTCTC are also required for auxin inducibility. These upstream sequences showed constitutive activity and no auxin inducibility when part or all of the TGTCTC element was mutated or deleted. In D1, the constitutive element overlaps the 5' portion of TGTCTC; in D4, the constitutive element is separated from TGTCTC. An 11-bp element in D1, CCTCGTGTCTC, conferred auxin inducibility to a minimal cauliflower mosaic virus 35S promoter in transgenic tobacco seedlings as well as in carrot protoplasts (i.e., transient expression assays). Both constitutive elements bound specifically to plant nuclear proteins, and the constitutive element in D1 bound to a recombinant soybean basic leucine zipper transcription factor with G-box specificity. To demonstrate further the composite nature of AuxREs and the ability of the TGTCTC element to confer auxin inducibility, we created a novel AuxRE by placing a yeast GAL4 DNA binding site adjacent to the TGTCTC element. Expression of a GAL4-c-Rel transactivator in the presence of this novel AuxRE resulted in auxin-inducible expression. Our results indicate that at least some AuxREs have a composite structure consisting of a constitutive element adjacent to a conserved TGTCTC element that confers auxin inducibility.
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Affiliation(s)
- T Ulmasov
- Department of Biochemistry, University of Missouri, Columbia 65211, USA
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Li M, Yang J, Shen GX, Zhang Q, Liu SP, Liu ZB, Ye WX. Study on lymphocyte activation and proliferation induced by anti-CD3 McAb. J Tongji Med Univ 1994; 14:209-12. [PMID: 7760429 DOI: 10.1007/bf02897669] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
T cell activation and proliferation via CD3-TCR complex were investigated by lymphocyte DNA synthesis in vitro. Several interfering factors were also discussed. The result indicated that lymphocyte activation and proliferation are calcium-dependent. A rise of cytoplasmic free Ca2+ quickly following activation with CD3 McAb is mainly due to intracellular mobilization of Ca2+, while lymphocyte proliferation needs both intracellular mobilization of Ca2+ as well as influx of extracellular Ca2+. It was confirmed that CTX sensitive G protein plays a role in regulating T cell proliferation by pretreatment with CTX suppressing lymphocyte H-TdR incorporation obviously. PLC and PKC inhibitor neomycin and P. S. S could also decrease T cell proliferation.
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Affiliation(s)
- M Li
- Department of Immunology, Tongji Medical University, Wuhan
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33
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Song WD, Zhao JY, Liu ZB. [Relationship between local effect of cortisol used by chronic bronchitis patients and syndrome differentiation in TCM]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1994; 14:592-4. [PMID: 7719090] [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: 01/26/2023]
Abstract
Serum cortisol levels and bronchoalveolar lavage fluid (BALF) from 105 patients with chronic obstructive pulmonary disease (COPD) and 36 normal subjects were examined and the relationship between cortisol inhibiting the TXB2 secreted by alveolar macrophage (AM) and the theory of Syndrome Differentiation in TCM was explored. Results showed: (1) No significant differences were found between chronic bronchitis and normal subjects on cortisol levels in serum, but in BALF, cortisol levels was significantly lower in Lung Qi Deficiency when compared with that in normal subjects. (2) the levels of cortisol inhibiting the TXB2 secreted by AM which were significantly lower in chronic bronchitis when compared with that in control. In short, the amount and function of cortisol in BALF were significantly different in various syndromes in TCM of chronic bronchitis.
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Affiliation(s)
- W D Song
- First Affiliated Hospital, Anhui Medical University, Hefei
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Abstract
The soybean SAUR (Small Auxin-Up RNA) genes are transcriptionally induced by exogenous auxins within a few minutes after hormone application. This response is specifically induced by auxins primarily in epidermal and cortical cells within elongation zones of hypocotyls and epicotyls. We have previously shown that an 832-bp soybean SAUR promoter/beta-glucuronidase (GUS) reporter gene fusion is responsive to auxin in transgenic tobacco plants (Y. Li, G. Hagen, T.J. Guilfoyle [1991] Plant Cell 3: 1167-1175). Similar results were obtained with an 868-bp SAUR 15A promoter-GUS reporter gene in transgenic tobacco (Y. Li, unpublished results). We have now analyzed a soybean SAUR 15A promoter in transgenic tobacco plants using 5' unidirectional deletions, internal deletions and mutations, and gain-of-function assays with a minimal cauliflower mosaic virus 35S promoter. Our results indicate that the distal upstream element/NdeI restriction endonuclease site element (NDE) (B.A. McClure, G. Hagen, C.S. Brown, M.A. Gee, T.J. Guilfoyle [1989] Plant Cell 1: 229-239) in the SAUR 15A promoter is necessary and sufficient for auxin induction. Our results also show that the 30-bp NDE portion of this element is responsible for most, if not all, of the auxin inducibility of the SAUR 15A promoter. The NDE contains two adjacent sequences, TGTCTC and GGTCCCAT, which have been previously identified as putative auxin-responsive elements. We propose that these elements might function independently or together, possibly with an additional element(s), to confer auxin inducibility to the SAUR promoters.
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Affiliation(s)
- Y Li
- Department of Biochemistry, University of Missouri, Columbia 65211
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Abstract
The soybean GH3 gene is transcriptionally induced in a wide variety of tissues and organs within minutes after auxin application. To determine the sequence elements that confer auxin inducibility to the GH3 promoter, we used gel mobility shift assays, methylation interference, deletion analysis, linker scanning, site-directed mutagenesis, and gain-of-function analysis with a minimal cauliflower mosaic virus 35S promoter. We identified at least three sequence elements within the GH3 promoter that are auxin inducible and can function independently of one another. Two of these elements are found in a 76-bp fragment, and these consist of two independent 25- and 32-bp auxin-inducible elements. Both of these 25- and 32-bp auxin-inducible elements contain the sequence TGTCTC just upstream of an AATAAG. An additional auxin-inducible element was found upstream of the 76-bp auxin-inducible fragment; this can function independently of the 76-bp fragment. Two TGA-box or Hex-like elements (TGACGTAA and TGACGTGGC) in the promoter, which are strong binding sites for proteins in plant nuclear extracts, may also elevate the level of auxin inducibility of the GH3 promoter. The multiple auxin-inducible elements within the GH3 promoter contribute incrementally to the overall level of auxin induction observed with this promoter.
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Affiliation(s)
- Z B Liu
- Department of Biochemistry, University of Missouri, Columbia 65211
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Liu ZB, Wei HD, Mao BZ, Chen DZ, Wu ZZ. Cryopreservation of hematopoietic cells. Chin Med J (Engl) 1985; 98:447-51. [PMID: 2865089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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37
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Liu ZB. [Effect of ionizing radiation on cyanocobalamin and its aqueous solutions (author's transl)]. Yao Xue Xue Bao 1981; 16:225-9. [PMID: 7246173] [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: 01/24/2023]
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