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Cao LN, Wang YY, Hou XY, Zheng HD, Wei RZ, Zhao RR, Shen WY, Yang Y, Chu JF, Tian GY, Xiao J, Tian T. New insights on the association of weight loss with the reduction in carotid intima-media thickness among patients with obesity: an updated systematic review and meta-analysis. Public Health 2024; 226:248-254. [PMID: 38091813 DOI: 10.1016/j.puhe.2023.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 10/09/2023] [Accepted: 11/07/2023] [Indexed: 01/15/2024]
Abstract
OBJECTIVES Carotid intima-media thickness (CIMT) is a noninvasive marker of atherosclerosis, a typical pathologic process underlying cardiovascular diseases (CVDs). It is essential to explore the relationships between weight loss and the reduction of CIMT. STUDY DESIGN This was an updated systematic review and meta-analysis. METHODS A systematic literature search was conducted to collect relevant clinical trials. The pooled results of meta-analyses were assessed by weighted mean difference (WMD) and the corresponding 95 % confidence interval (95% CI). RESULTS Thirty-three articles involving 2273 participants were collected in this meta-analysis. Among all participants with obesity, the pooled mean of weight loss was -23.26 kg (95% CI: -27.71 to -18.81), and the pooled mean change of CIMT was -0.06 mm (95% CI: -0.08 to -0.04). Compared with Non-surgical interventions, Surgical ones could lead to much higher weight loss (Pbetween groups < 0.001). A more significant CIMT reduction was identified among Surgical intervention patients than among Non-surgical intervention participants (Pbetween groups < 0.001). CONCLUSIONS Effective interventions, especially Surgical interventions, could reduce the weight of patients with obesity, followed by the decline of CIMT, which might further disturb atherosclerosis progression and lower CVD risk.
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Affiliation(s)
- L N Cao
- The Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - Y Y Wang
- The Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - X Y Hou
- The Center for Disease Control and Prevention of Nantong, Nantong 226007, China
| | - H D Zheng
- The Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - R Z Wei
- The Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - R R Zhao
- The Department of Oncology, Jiangdu People's Hospital of Yangzhou, Yangzhou 225202, China
| | - W Y Shen
- The Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - Y Yang
- The Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, Nantong 226019, China
| | - J F Chu
- The Department of Oncology, Jiangdu People's Hospital of Yangzhou, Yangzhou 225202, China
| | - G Y Tian
- The Department of Oncology, Jiangdu People's Hospital of Yangzhou, Yangzhou 225202, China.
| | - J Xiao
- The Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, Nantong 226019, China.
| | - T Tian
- The Department of Epidemiology and Medical Statistics, School of Public Health, Nantong University, Nantong 226019, China.
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Zhou RH, Hou XY, Cheng XH, Pan J, Lai RY, Chen GM, Zhang H, Wei LJ, Zhang L, Liu JX. [Effectiveness of a whole-process health education model among inpatients with ascites type of advanced schistosomiasis]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 34:626-629. [PMID: 36642904 DOI: 10.16250/j.32.1374.2022124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVE To evaluate the effectiveness of a whole-process health education model among inpatients with ascites type of advanced schistosomiasis. METHODS A "admission-hospitalization-discharge" whole-process health education model was created, 101 inpatients with ascites type of advanced schistosomiasis were given the whole-process health education. The scores of schistosomiasis control knowledge, attitudes towards schistosomiasis control and healthy behaviors, and awareness of schistosomiasis control knowledge, correct rate of attitudes towards schistosomiasis control and correct rate of healthy behaviors were compared among inpatients with ascites type of advanced schistosomiasis before and after implementation of the whole-process health education. RESULTS The scores of schistosomiasis control knowledge, schistosomiasis control attitudes and healthy behaviors were all significantly higher among inpatients with ascites type of advanced schistosomiasis after implementation of the whole-process health education than before implementation (Z = -7.688, -3.576 and -4.328, all P values < 0.01). In addition, the awareness of schistosomiasis control knowledge increased from 54.3% to 82.7% (χ2 = 188.886, P < 0.01), and the correct rate of attitudes towards schistosomiasis control increased from 88.4% to 98.0% (χ2 = 22.001, P < 0.01), while the correct rate of healthy behaviors increased from 48.2% to 59.7% (χ2 = 11.767, P < 0.01). CONCLUSIONS The whole-process health education model may remarkably improve the awareness of schistosomiasis control knowledge and promote the formation of positive attitudes towards schistosomiasis control and correct behaviors among inpatients with ascites type of advanced schistosomiasis, which is of great significance to facilitate patients' cure.
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Affiliation(s)
- R H Zhou
- Affiliated Xiangyue Hospital of Hunan Provincial Institute of Schistosomiasis Control; WHO Collaborating Center on Schistosomiasis Control in Lake Region of China; Hunan Provincial Key Laboratory of Immunology and Transmission Control on Schistosomiasis Control, Yueyang, Hunan 414000, China
| | - X Y Hou
- Affiliated Xiangyue Hospital of Hunan Provincial Institute of Schistosomiasis Control; WHO Collaborating Center on Schistosomiasis Control in Lake Region of China; Hunan Provincial Key Laboratory of Immunology and Transmission Control on Schistosomiasis Control, Yueyang, Hunan 414000, China
| | - X H Cheng
- Affiliated Xiangyue Hospital of Hunan Provincial Institute of Schistosomiasis Control; WHO Collaborating Center on Schistosomiasis Control in Lake Region of China; Hunan Provincial Key Laboratory of Immunology and Transmission Control on Schistosomiasis Control, Yueyang, Hunan 414000, China
| | - J Pan
- Affiliated Xiangyue Hospital of Hunan Provincial Institute of Schistosomiasis Control; WHO Collaborating Center on Schistosomiasis Control in Lake Region of China; Hunan Provincial Key Laboratory of Immunology and Transmission Control on Schistosomiasis Control, Yueyang, Hunan 414000, China
| | - R Y Lai
- Affiliated Xiangyue Hospital of Hunan Provincial Institute of Schistosomiasis Control; WHO Collaborating Center on Schistosomiasis Control in Lake Region of China; Hunan Provincial Key Laboratory of Immunology and Transmission Control on Schistosomiasis Control, Yueyang, Hunan 414000, China
| | - G M Chen
- Affiliated Xiangyue Hospital of Hunan Provincial Institute of Schistosomiasis Control; WHO Collaborating Center on Schistosomiasis Control in Lake Region of China; Hunan Provincial Key Laboratory of Immunology and Transmission Control on Schistosomiasis Control, Yueyang, Hunan 414000, China
| | - H Zhang
- Affiliated Xiangyue Hospital of Hunan Provincial Institute of Schistosomiasis Control; WHO Collaborating Center on Schistosomiasis Control in Lake Region of China; Hunan Provincial Key Laboratory of Immunology and Transmission Control on Schistosomiasis Control, Yueyang, Hunan 414000, China
| | - L J Wei
- Affiliated Xiangyue Hospital of Hunan Provincial Institute of Schistosomiasis Control; WHO Collaborating Center on Schistosomiasis Control in Lake Region of China; Hunan Provincial Key Laboratory of Immunology and Transmission Control on Schistosomiasis Control, Yueyang, Hunan 414000, China
| | - L Zhang
- Affiliated Xiangyue Hospital of Hunan Provincial Institute of Schistosomiasis Control; WHO Collaborating Center on Schistosomiasis Control in Lake Region of China; Hunan Provincial Key Laboratory of Immunology and Transmission Control on Schistosomiasis Control, Yueyang, Hunan 414000, China
| | - J X Liu
- Affiliated Xiangyue Hospital of Hunan Provincial Institute of Schistosomiasis Control; WHO Collaborating Center on Schistosomiasis Control in Lake Region of China; Hunan Provincial Key Laboratory of Immunology and Transmission Control on Schistosomiasis Control, Yueyang, Hunan 414000, China
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Hou XY, Meinke MM, Li SM, Lin M, Jia RB, Guo YW, Heindl LM. A modified 3D stereophotogrammetry-based distraction test for assessing lower eyelid tension. Int J Ophthalmol 2022; 15:1757-1764. [DOI: 10.18240/ijo.2022.11.05] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 04/21/2022] [Indexed: 11/06/2022] Open
Abstract
AIM: To investigate the reliability of a modified three-dimensional distraction test (3D-DT) and three-dimensional pinch test (3D-PT) for assessing lower eyelid tension (LET).
METHODS: A cross-sectional study was conducted among 97 volunteers including 97 eyelids with no history of trauma, tumor, or reconstructive surgeries. Six three-dimensional photographs were acquired for each participant, including two photographs obtained in a neutral position (NP), two using a modified 3D-DT with a 15.9-grammes stainless steel eyelid hook performed, and two using 3D-PT.
RESULTS: The mean absolute differences between NP, 3D-DT, and 3D-PT measurements varied between 0.07 and 7.42, 0.10 and 13.10, and 0.07 and 15.97, respectively; technical error of measurement varied between 0.05 and 7.81, 0.09 and 10.19, and 0.07 and 12.47, respectively; and relative error measurements varied between 0.10% and 11.50%, 0.16% and 30.51%, and 0.11% and 38.75%, respectively. For intra-rater reliability, the intraclass correlation coefficients (ICCs) were more than 0.80 in seven out of eight measurements obtained in the NP and 3D-DT, whereas those obtained in the 3D-PT were as low as less than 0.30 by rater 1; the ICCs of all the measurements obtained in all the positions (NP, 3D-DT, and 3D-PT) were more than 0.80 by rater 2. For inter-rater reliability six out of eight NP and 3D-DT measurements had an ICC greater than 0.80, whereas those of 3D-PT measurements were less than 0.30. For intra-method reliability, the ICCs of all the NP measurements were more than 0.87, whereas those of the six 3D-DT measurements and four 3D-PT measurements were more than 0.80.
CONCLUSION: Our study results prove that the modified 3D-DT, which involves the use of an eyelid hook, can be a highly reliable method for evaluating LET. Furthermore, this novel and simple method may be utilized as the basis for further investigation and routine pre- and postoperative clinical evaluation.
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Hou XY, Kang ZF, Wang JQ. [Research progress of human coronaviruses and associated eye diseases]. Zhonghua Yan Ke Za Zhi 2021; 57:871-875. [PMID: 34743475 DOI: 10.3760/cma.j.cn112142-20210426-00190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Coronaviruses are RNA viruses. We should be alerted from the outbreak of the severe acute respiratory syndrome coronavirus (SARS-CoV) in 2003, the discovery of the human coronavirus NL63 (HCoV-NL63) in 2004 and the pneumonia outbreak caused by the novel coronavirus in 2019 (2019-nCoV). Coronaviruses can adhere to mucous membranes of the eye, nose, mouth, respiratory tract and digestive tract through various media, which leads to inflammatory reaction, pulmonary fibrosis, kidney failure and death in severe cases. As an exposed organ, the eye can also be infected. With the progress of molecular technology and the in-depth research of coronaviruses, there have been seven known coronaviruses that can infect humans, among which HCoV-NL63, SARS-CoV and 2019-nCoV can cause eye diseases. This article summarizes and analyzes the latest research results at home and abroad concerning the structural characteristics, transmission routes, ocular pathogenic characteristics and treatment of HCoV-NL63, SARS-CoV and 2019-nCoV, in order to provide reference for clinical diagnosis and treatment. (Chin J Ophthalmol, 2021, 57: 871-875).
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Affiliation(s)
- X Y Hou
- Eye Hospital of China Academy of Chinese Medical Sciences, Beijing 100040, China
| | - Z F Kang
- Eye Hospital of China Academy of Chinese Medical Sciences, Beijing 100040, China
| | - J Q Wang
- Eye Hospital of China Academy of Chinese Medical Sciences, Beijing 100040, China
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Liu SH, Hou XY, Zhang XX, Liu GW, Xin FJ, Wang JG, Zhang DL, Wang DS, Lu Y. [Establishment and validation of a predictive nomogram model for advanced gastric cancer with perineural invasion]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:1059-1066. [PMID: 33212554 DOI: 10.3760/cma.j.cn.441530-20200103-00004] [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: 11/05/2022]
Abstract
Objective: Peripheral nerve invasion (PNI) is associated with local recurrence and poor prognosis in patients with advanced gastric cancer. A risk-assessment model based on preoperative indicators for predicting PNI of gastric cancer may help to formulate a more reasonable and accurate individualized diagnosis and treatment plan. Methods: Inclusion criteria: (1) electronic gastroscopy and enhanced CT examination of the upper abdomen were performed before surgery; (2) radical gastric cancer surgery (D2 lymph node dissection, R0 resection) was performed; (3) no distant metastasis was confirmed before and during operation; (4) postoperative pathology showed an advanced gastric cancer (T2-4aN0-3M0), and the clinical data was complete. Those who had other malignant tumors at the same time or in the past, and received neoadjuvant radiochemotherapy or immunotherapy before surgery were excluded. In this retrospective case-control study, 550 patients with advanced gastric cancer who underwent curative gastrectomy between September 2017 and June 2019 were selected from the Affiliated Hospital of Qingdao University for modeling and internal verification, including 262 (47.6%) PNI positive and 288 (52.4%) PNI negative patients. According to the same standard, clinical data of 50 patients with advanced gastric cancer who underwent radical surgery from July to November 2019 in Qingdao Municipal Hospital were selected for external verification of the model. There were no statistically significant differences between the clinical data of internal verification and external verification (all P>0.05). Univariate analysis and multivariate logistic regression analysis were used to determine the independent risk factors for PNI in advanced gastric cancer, and the clinical indicators with statistically significant difference were used to establish a preoperative nomogram model through R software. The Bootstrap method was applied as internal verification to show the robustness of the model. The discrimination of the nomogram was determined by calculating the average consistency index (C-index). The calibration curve was used to evaluate the consistency of the predicted results with the actual results. The Hosmer-Lemeshow test was used to examine the goodness of fit of the discriminant model. During external verification, the corresponding C-index index was also calculated. The area under ROC curve (AUC) was used to evaluate the predictive ability of the nomogram in the internal verification and external verification groups. Results: A total of 550 patients were identified in this study, 262 (47.6%) of which had PNI. Multivariate logistic regression analysis revealed that carcinoembryonic antigen level ≥ 5 μg/L (OR=5.870, 95% CI: 3.281-10.502, P<0.001), tumor length ≥5 cm (OR=5.539,95% CI: 3.165-9.694, P<0.001), mixed Lauren classification (OR=2.611, 95%CI: 1.272-5.360, P=0.009), cT3 stage (OR=13.053, 95% CI: 5.612-30.361, P<0.001) and the presence of lymph node metastasis (OR=4.826, 95% CI: 2.729-8.533, P<0.001) were significant independent risk factors of PNI in advanced gastric cancer (all P<0.05). Based on these results, diffused Lauren classification and cT4 stage were included to establish a predictive nomogram model. CEA ≥ 5 μg/L was for 68 points, tumor length ≥ 5 cm was for 67 points, mixed Lauren classification was for 21 points, diffused Lauren classification was for 38 points, cT3 stage was for 75 points, cT4 stage was for 100 points, and lymph node metastasis was for 62 points. Adding the scores of all risk factors was total score, and the probability corresponding to the total score was the probability that the model predicted PNI in advanced gastric cancer before surgery. The internal verification result revealed that the AUC of nomogram was 0.935, which was superior than that of any single variable, such as CEA, Lauren classification, cT stage, tumor length and lymph node metastasis (AUC: 0.731, 0.595, 0.838, 0.757 and 0.802, respectively). The external verification result revealed the AUC of nomogram was 0.828. The C-ndex was 0.931 after internal verification. External verification showed a C-index of 0.828 from the model. The calibration curve showed that the predictive results were good in accordance with the actual results (P=0.415). Conclusion: A nomogram model constructed by CEA, tumor length, Lauren classification (mixed, diffuse), cT stage, and lymph node metastasis can predict the PNI of advanced gastric cancer before surgery.
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Affiliation(s)
- S H Liu
- Department of general surgery Medical center, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - X Y Hou
- Department of Health Management Center, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - X X Zhang
- Department of general surgery Medical center, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - G W Liu
- Department of general surgery Medical center, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - F J Xin
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - J G Wang
- Department of Pathology, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - D L Zhang
- Department of General Surgery, Qingdao Municipal Hospital, Qingdao, Shandong 266011, China
| | - D S Wang
- Department of general surgery Medical center, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China
| | - Y Lu
- Department of general surgery Medical center, Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, China; Shangdong Key Laboratory of Digital Medicine and Computer-assisted Surgery, Qingdao, Shandong 266003, China
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Hu BJ, Li SM, Zhou J, Hou XY, Zhou YB, Jiang QW, Ren GH. [Progress of schistosomiasis control in Dongting Lake regions]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:320-322. [PMID: 32468801 DOI: 10.16250/j.32.1374.2020064] [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: 11/27/2022]
Abstract
As an ancient parasitic disease, schistosomiasis has been endemic in Dongting Lake areas for more than 2 100 years. In the early 20th century, the first human case of schistosomiasis in China was reported in Dongting Lake areas, which was paid extensive attention. After the founding of the People's Republic of China, large-scale schistosomiasis control activities were launched promptly in Dongting Lake areas, and great successes have been achieved following the three stages of control efforts, including the snail control-based stage, synchronous chemotherapy for humans and livestock-based control stage and infectious source control-based control stage. In 2015, transmission control of schistosomiasis was achieved in Hunan Province. This paper comprehensively describes the discovery and control of schistosomiasis, analyzes the challenges for the current schistosomiasis control programs and proposes the emphasis for future control activities in Dongting Lake areas, so as to provide insights into the schistosomiasis control program in this area.
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Affiliation(s)
- B J Hu
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - S M Li
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - J Zhou
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - X Y Hou
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - Y B Zhou
- School of Public Health, Fudan University, China
| | - Q W Jiang
- School of Public Health, Fudan University, China
| | - G H Ren
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
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Zhou J, Ren GH, He HB, Hou XY, Deng WC. [Application of the exponential smoothing model and ARIMA model in prediction of the endemic situation of schistosomiasis in Hunan Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:236-241. [PMID: 32468784 DOI: 10.16250/j.32.1374.2020021] [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: 11/27/2022]
Abstract
OBJECTIVE To predict the changes in the prevalence of Schistosoma japonicum infections in humans and livestock in Hunan Province using the exponential smoothing model and the ARIMA model. METHODS The data pertaining to S. japonicum infections in humans and livestock in Hunan Province from 1957 to 2015 were collected, and the exponential smoothing model and the ARIMA model were created using the software Eviews and PASW Statistics 18.0. In addition, the effectiveness of these two models for the prediction of S. japonicum infections in humans and livestock in Hunan Province from 2016 to 2018 was evaluated. RESULTS The exponential smoothing model and the ARIMA model had a high goodness of fit for prediction of S. japonicum infections in humans and livestock in Hunan Province from 1957 to 2015. There was a linear trend in the prevalence of S. japonicum infections in humans and livestock in Hunan Province from 1957 to 2015. The prevalence of S. japonicum infections in humans predicted with the Brown's linear trend and the prevalence of S. japonicum infections in livestock predicted with the Holt's linear trend in Hunan Province from 2016 to 2018 fitted better the actual data than the ARIMA model; however, prediction of the ARIMA model indicated that the endemic situation of schistosomiasis remained at a low level in Hunan Province. CONCLUSIONS At a low epidemic level, development of highly sensitive tools for monitoring schistosomiasis is urgently needed in Hunan Province to fit the current endemic situation, and the schistosomiasis control measures should be intensified to consolidate the control achievements.
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Affiliation(s)
- J Zhou
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - G H Ren
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - H B He
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - X Y Hou
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - W C Deng
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
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Wu Z, Parry M, Hou XY, Liu MH, Wang H, Cain R, Pei ZF, Chen YC, Guo ZY, Abhijeet S, Chen G. Gene therapy conversion of striatal astrocytes into GABAergic neurons in mouse models of Huntington's disease. Nat Commun 2020; 11:1105. [PMID: 32107381 PMCID: PMC7046613 DOI: 10.1038/s41467-020-14855-3] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 02/06/2020] [Indexed: 01/30/2023] Open
Abstract
Huntington's disease (HD) is caused by Huntingtin (Htt) gene mutation resulting in the loss of striatal GABAergic neurons and motor functional deficits. We report here an in vivo cell conversion technology to reprogram striatal astrocytes into GABAergic neurons in both R6/2 and YAC128 HD mouse models through AAV-mediated ectopic expression of NeuroD1 and Dlx2 transcription factors. We found that the astrocyte-to-neuron (AtN) conversion rate reached 80% in the striatum and >50% of the converted neurons were DARPP32+ medium spiny neurons. The striatal astrocyte-converted neurons showed action potentials and synaptic events, and projected their axons to the targeted globus pallidus and substantia nigra in a time-dependent manner. Behavioral analyses found that NeuroD1 and Dlx2-treated R6/2 mice showed a significant extension of life span and improvement of motor functions. This study demonstrates that in vivo AtN conversion may be a disease-modifying gene therapy to treat HD and other neurodegenerative disorders.
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Affiliation(s)
- Zheng Wu
- Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Matthew Parry
- Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Xiao-Yi Hou
- Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Min-Hui Liu
- Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, China
| | - Hui Wang
- Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA.,Department of Neurology, Affiliated ZhongDa Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Rachel Cain
- Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Zi-Fei Pei
- Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Yu-Chen Chen
- Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Zi-Yuan Guo
- Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Sambangi Abhijeet
- Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA
| | - Gong Chen
- Department of Biology, Huck Institutes of Life Sciences, Pennsylvania State University, University Park, PA, 16802, USA. .,Guangdong-Hong Kong-Macau Institute of CNS Regeneration, Jinan University, Guangzhou, China.
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Hou XY, Hu ZL, Zhang DZ, Lu W, Zhou J, Wu PF, Guan XL, Han QQ, Deng SL, Zhang H, Chen JG, Wang F. Rapid Antidepressant Effect of Hydrogen Sulfide: Evidence for Activation of mTORC1-TrkB-AMPA Receptor Pathways. Antioxid Redox Signal 2017; 27:472-488. [PMID: 28158955 DOI: 10.1089/ars.2016.6737] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
AIMS We asked whether hydrogen sulfide (H2S), as the third gaseous mediator, provided fast antidepressant effect on major depressive disorders and underlying mechanisms. RESULTS The decreased level of H2S was detected in the hippocampus of chronic unpredictable mild stress (CUMS)-treated rats. Acute administration of H2S either by H2S inhalation or by the donor NaHS produced a rapid antidepressant-like behavioral effect. Further investigation demonstrated that this effect of H2S was mediated by reversing the CUMS-induced decrease in dendritic spine density and required the activation of mammalian target of rapamycin (mTOR)C1 and neurotrophic TrkB receptors, which proceeded to increase synaptic protein expression, including postsynaptic density protein 95, synaptophysin, and α-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid receptor GluR1/2 subunit. INNOVATION This study provides the first direct evidence for detecting the decreased H2S in hippocampus of CUMS rats and the biological significance of H2S in treating major depression. CONCLUSION Our data demonstrate that H2S activates mTORC1 signaling cascades and thereby produces fast-onset antidepressant effect. The study provides a profound insight into H2S or its donors as potent preventive and therapeutic agents for intervention of depression. Antioxid. Redox Signal. 27, 472-488.
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Affiliation(s)
- Xiao-Yi Hou
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Zhuang-Li Hu
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China
| | - Deng-Zheng Zhang
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Wei Lu
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Jun Zhou
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Peng-Fei Wu
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China
| | - Xin-Lei Guan
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Qian-Qian Han
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Si-Long Deng
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China
| | - Hai Zhang
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China .,5 Collaborative Innovation Center for Brain Science , Wuhan, China
| | - Jian-Guo Chen
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China .,5 Collaborative Innovation Center for Brain Science , Wuhan, China
| | - Fang Wang
- 1 Department of Pharmacology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China .,2 Hubei Key Laboratory of Drug Target Research and Pharmacodynamic Evaluation (Huazhong University of Science and Technology) , Wuhan, China .,3 Laboratory of Neuropsychiatric Diseases, The Institute of Brain Research, Huazhong University of Science and Technology , Wuhan, China .,4 Key Laboratory of Neurological Diseases (HUST), Ministry of Education of China , Wuhan, China .,5 Collaborative Innovation Center for Brain Science , Wuhan, China
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10
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Zhang HW, Yin SW, Zhang LJ, Hou XY, Wang YY, Zhang GS. Development and validation of single nucleotide polymorphism markers in Odontobutis potamophila from transcriptomic sequencing. Genet Mol Res 2015; 14:2080-5. [PMID: 25867354 DOI: 10.4238/2015.march.20.18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Transcriptome sequencing technology has been applied in the development and discovery of single nucleotide polymorphism (SNP) markers in fish. In this study, a panel of 120 expressed sequence tag (EST)-derived SNPs was selected by several selection filters from the resultant EST library of Odontobutis potamophila using Illumina Sequencing. In total, 37 SNPs from 120 putative SNPs were considered as the true SNPs using Sanger sequencing. For each SNP locus of 30 individuals of one wild population of O. potamophila that was successfully calculated, the number of alleles per locus was 2 with an observed heterozygosity of 0.0000-0.9000 and an expected heterozygosity of 0.1000-0.5263. A total of 33 loci conformed to Hardy-Weinberg equilibrium (HWE), and 4 loci deviated from HWE after Bonferroni correction. These 33 SNP markers will benefit the studies of population genetic structure, population evolution analysis, and construction of a high-density linkage map of O. potamophila.
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Affiliation(s)
- H W Zhang
- College of Life Sciences, Nanjing Normal University, Jiangsu Key Laboratory for Biodiversity and Biotechnology, Nanjing, Jiangsu Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang, China
| | - S W Yin
- College of Life Sciences, Nanjing Normal University, Jiangsu Key Laboratory for Biodiversity and Biotechnology, Nanjing, Jiangsu Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang, China
| | - L J Zhang
- College of Life Sciences, Nanjing Normal University, Jiangsu Key Laboratory for Biodiversity and Biotechnology, Nanjing, Jiangsu Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang, China
| | - X Y Hou
- College of Life Sciences, Nanjing Normal University, Jiangsu Key Laboratory for Biodiversity and Biotechnology, Nanjing, Jiangsu Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang, China
| | - Y Y Wang
- College of Life Sciences, Nanjing Normal University, Jiangsu Key Laboratory for Biodiversity and Biotechnology, Nanjing, Jiangsu Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang, China
| | - G S Zhang
- College of Life Sciences, Nanjing Normal University, Jiangsu Key Laboratory for Biodiversity and Biotechnology, Nanjing, Jiangsu Co-Innovation Center for Marine Bio-Industry Technology, Lian Yungang, China
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11
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Ren J, Hou XY, Ma SH, Zhang FK, Zhen JH, Sun L, Sun YX, Hao YL, Cheng YF, Hou M, Xu CG, Zhang MH, Peng J. Elevated expression of CX3C chemokine receptor 1 mediates recruitment of T cells into bone marrow of patients with acquired aplastic anaemia. J Intern Med 2014; 276:512-24. [PMID: 24528288 DOI: 10.1111/joim.12218] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE Acquired aplastic anaemia (AA) is a T-cell-mediated, organ-specific autoimmune disease characterized by haematopoietic stem cell destruction in the bone marrow. The exact molecular mechanism of T-cell trafficking into the bone marrow is unclear in AA. Very late activation antigen-4 (VLA-4) and CX3C chemokine receptor 1 (CX3CR1) play active roles in many autoimmune diseases. Therefore, we investigated whether VLA-4 and CX3CR1 also contribute to T-cell migration into the bone marrow in acquired AA. DESIGN, SETTING AND SUBJECTS Expression levels of CX3CR1 and VLA-4 and their ligands [fractalkine (CX3CL1) and vascular cell adhesion molecule-1 (VCAM-1)] were examined in 63 patients with AA and 21 healthy control subjects. T-cell chemotaxis and adhesion were analysed in 17 patients with severe AA. We also prospectively evaluated the expression pattern of CX3CR1 during treatment with antithymocyte globulin plus cyclosporine in 11 patients with severe AA. RESULTS The proportion of peripheral and bone marrow CD4(+) and CD8(+) T cells expressing CX3CR1 and the level of CX3CL1 was increased in patients with AA. However, there was no significant difference in VLA-4 expression or VCAM-1 levels. Functional studies demonstrated that chemotaxis towards autologous bone marrow plasma or soluble CX3CL1 was significantly higher in T cells from AA patients and could be blocked by CX3CR1 inhibitors. CX3CR1-mediated T-cell adhesion was also upregulated in these patients. The expression of CX3CR1 was associated with the efficacy of immunosuppressive therapy. CONCLUSION The present findings demonstrate that CX3CR1 plays a pivotal role in recruitment of T cells into the bone marrow in acquired AA and is a potential therapeutic target for treatment of this disorder.
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Affiliation(s)
- J Ren
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China; Department of Hematology, First Affiliated Hospital, Xi'an Jiaotong University, Xi'an, China
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Song QL, Li CM, Chan-Park MB, Lu M, Yang H, Hou XY. Exciton dissociation in organic light emitting diodes at the donor-acceptor interface. Phys Rev Lett 2007; 98:176403. [PMID: 17501514 DOI: 10.1103/physrevlett.98.176403] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2007] [Indexed: 05/15/2023]
Abstract
Experimental in situ photoluminescence and transient photovoltage results show that the interface formed by N, N{'}-Bis(naphthalene-1-yl)-N, N{'}-bis(phenyl) benzidine (NPB) and tris(8-hydroxyquinoline) aluminum (Alq{3}) acts as an exciton dissociation site. Because of this dissociation effect, excitons formed in NPB at or within a diffusion length of the interface tend to dissociate before they radiatively decay to generate blue light. This suggests that the action of the "hole-blocking layer" used in indium tin oxide\NPB\hole-blocking layer\Alq{3}\aluminium to promote blue light emission from the NPB is more "exciton dissociation inhibition" than "hole blocking."
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Affiliation(s)
- Q L Song
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457
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13
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He YK, Liu SX, Zhang XY, Song GC, Luo XS, Li YS, Xu YX, Yu XL, Li Y, Hou XY, McManus DP. Field assessment of recombinant Schistosoma japonicum 26 kDa glutathione S-transferase in Chinese water buffaloes. Southeast Asian J Trop Med Public Health 2003; 34:473-9. [PMID: 15115115] [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: 04/29/2023]
Abstract
We have shown previously that anti-fecundity immunity can be induced experimentally against recombinant 26 kDa glutathione S-transferase (reSjc26GST) in Chinese water buffaloes (Bos buffelus), important reservoir hosts for Schistosoma japonicum in China. In the field study described here, we immunized buffaloes with reSjc26GST to induce protective immunity against S. japonicum and to evaluate its effectiveness in controlling schistosomiasis japonica. We selected two villages as test and control groups in inside-embankment areas endemic for schistosomiasis japonica. The buffaloes in the test village were vaccinated with reSjc26GST, whereas those in the control village were not. The indicators of the effect of the vaccine included the generation of specific IgG antibodies in the vaccinated buffaloes, changes in the prevalence and infection intensity in buffaloes and village children, changes in the density of infected snails, and changes in the infectivity of water bodies (assessed by sentinel mice) in transmission areas adjacent to both villages. Twenty months after vaccination, the infection rate of buffaloes in the test village was decreased by 60.4% (from an initial prevalence of 13.5% to 5.4%), and 67.9% when compared with that in the control village (initial prevalence of 16.7%). However, the infection rate in village children remained unchanged. The density of infected snails decreased by 71.4%, from 0.0049/0.11 m2 to 0.0014/0.11m2 in the high transmission area outside the embankment in the test village. There was no change in the infectivity of the water body transmission areas between the test and control villages. The levels of specific antibodies to reSjc26GST showed a continuous increase after vaccination. These results indicate that protective immunity was induced and maintained in buffaloes after vaccination with reSjc26GST. The vaccine could thus play a significant role in reducing S. japonicum transmission caused by water buffaloes in the Lake region of China.
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Affiliation(s)
- Y K He
- Hunan Institute of Parasitic Diseases and WHO Collaborating Center for Research and Control on Schistosomiasis in the Lake Region, Hunan
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Abstract
To shed light on the potential efficacy of cycling as a testing modality in the treatment of intermittent claudication (IC), this study compared physiological and symptomatic responses to graded walking and cycling tests in claudicants. Sixteen subjects with peripheral arterial disease (resting ankle: brachial index (ABI) < 0.9) and IC completed a maximal graded treadmill walking (T) and cycle (C) test after three familiarization tests on each mode. During each test, symptoms, oxygen uptake (VO2), minute ventilation (VE), respiratory exchange ratio (RER) and heart rate (HR) were measured, and for 10 min after each test the brachial and ankle systolic pressures were recorded. All but one subject experienced calf pain as the primary limiting symptom during T; whereas the symptoms were more varied during C and included thigh pain, calf pain and dyspnoea. Although maximal exercise time was significantly longer on C than T (690 +/- 67 vs. 495 +/- 57 s), peak VO2, peak VE and peak heart rate during C and T were not different; whereas peak RER was higher during C. These responses during C and T were also positively correlated (P < 0.05) with each other, with the exception of RER. The postexercise systolic pressures were also not different between C and T. However, the peak decline in ankle pressures from resting values after C and T were not correlated with each other. These data demonstrate that cycling and walking induce a similar level of metabolic and cardiovascular strain, but that the primary limiting symptoms and haemodynamic response in an individual's extremity, measured after exercise, can differ substantially between these two modes.
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Affiliation(s)
- C D Askew
- School of Human Movement Studies, Queensland University of Technology, Department of Surgery, University of Queensland, Brisbane, Australia
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Hou XY, Tang FM, Zhang GY. Stimulation of dopamine receptors inhibited Ca2+-calmodulin-dependent protein kinase II activity in rat striatal slices. Acta Pharmacol Sin 2001; 22:966-70. [PMID: 11749784] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
AIM To investigate the mechanism underlying dopaminergic neurotoxicity in the striatum during anoxia. METHODS Using rat striatal slices as an in vitro model, the activity of Ca2+-calmodulin-dependent protein kinase II (CCDPKII) was examined by the method of substrate phosphorylation 32P-incorporation. RESULTS Anoxia for 30 min greatly reduced CCDPKII activity by about 75 %. Reserpinization by repeated reserpine administration (1 mg . kg-1 . d-1 for 7 d, sc) preserved CCDPK II activity against the anoxia-induced decrease (about 40 % of control). The activity of CCDPKII was reduced significantly by exposure of rat striatal slices to micromolar concentrations of dopamine in the presence of extracellular Ca2+. Omission of Ca2+ in the incubation medium (with addition of 1 mmol/L egtazic acid) diminished the dopamine-induced decrease of the kinase activity. Application of apomorphine, a non-selective dopamine receptor agonist, produced a similar concentration-related decrease of CCDPKII activity. Exposure to SKF38393 (selective D1-like receptor agonist) or quinpirole (selective D2-like receptor agonist) also inhibited the kinase activity. The dopamine-induced decrease of CCDPKII activity was attenuated by preincubation with Sch-23390 (selective D1-like receptor antagonist) or domperidone (selective D2-like receptor antagonist). CONCLUSION Dopamine is involved in the anoxia-induced inhibition of CCDPKII activity by activation of both D1-like and D2-like receptors and influx of Ca2+, which may contribute to dopamine-mediated striatal neuronal damage.
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Affiliation(s)
- X Y Hou
- Research Center of Biochemistry and Molecular Biology, Xuzhou Medical College, Xuzhou 221002, China
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Hou XY, Zhang GY. Protection of dopaminergic antagonists against anoxia-induced inhibition of Ca(2+)-calmodulin dependent protein kinase II activity in rat brain. Zhongguo Yao Li Xue Bao 1999; 20:995-9. [PMID: 11270981] [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: 02/19/2023]
Abstract
AIM To study the effect of dopamine receptor antagonists on anoxia-induced inhibition of Ca(2+)-calmodulin dependent protein kinase II (CCDPK II) activity in rat hippocampus and striatum. METHODS Using the rat hippocampal and striatal slices under 95% N2 + 5% CO2, the activity of CCDPK II was examined by 32P-incorporation. RESULTS Under anoxia for 30 min, the CCDPK II activity decreased to 29.2% and 27.0% of the control in rat hippocampal and striatal slices, respectively. Preincubation with Sch-23390 (a specific D1-like dopamine receptor antagonist), or domperidone (a specific D2-like dopamine receptor antagonist), resulted in a concentration-dependent attenuation of the anoxia-induced inhibition of CCDPK II activity which was preserved up to about 60%. CONCLUSION Dopamine receptor stimulation is involved in anoxia-induced inhibition of CCDPK II activity in rat hippocampus and striatum.
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Affiliation(s)
- X Y Hou
- Research Center of Biochemistry and Molecular Biology, Xuzhou Medical College, Xuzhou 221002, China
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Hou XY, Zhang GY. Inhibitory effect of dopamine on Ca(2+)-calmodulin-dependent protein kinase II activity in rat hippocampal slices. Zhongguo Yao Li Xue Bao 1999; 20:902-6. [PMID: 11270989] [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: 02/19/2023]
Abstract
AIM To study the effect of dopamine (DA) on Ca(2+)-calmodulin dependent protein kinase II (CCDPK II) activity in rat hippocampus. METHODS Using rat hippocampal slices as an in vitro model, the activity of CCDPK II was examined by the method of 32P-incorporation. RESULTS Exogenous DA reduced CCDPK II activity in hippocampal slices in a concentration- and time-dependent manner. Removal of extracellular calcium antagonized the DA-induced inhibition of CCDPK II activity, partially or completely. The activity of CCDPK II was markedly decreased by apomorphine (a nonselective DA receptor agonist), SKF38393 (a selective D1-like DA receptor agonist), or quinpirole (a selective D2-like DA receptor agonist). The inhibition of CCDPK II activity induced by exogenous DA was abolished by preincubation with Sch-23390, a selective D1-like DA receptor antagonist, or domperidone, a selective D2-like DA receptor antagonist. CONCLUSION DA has an inhibitory effect on CCDPK II activity in rat hippocampus, related to stimulation of D1-like and D2-like receptors and calcium influx.
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Affiliation(s)
- X Y Hou
- Research Center of Biochemistry and Molecular Biology, Xuzhou Medical College, Xuzhou, Jiangsu 221002, China.
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Hou XY, Zhang GY. [Mechanisms underlying dopaminergic neurotoxicity in ischemic cerebral damage]. Sheng Li Ke Xue Jin Zhan 1999; 30:315-20. [PMID: 12532824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Dopamine(DA) is a neurotransmitter, but it also serves as a neurotoxin under certain pathological conditions. Accumulating evidences indicate that DA plays an important role in ischemic cerebral damage. The mechanism by which DA exacerbates the neuronal damage remains unclear. Many mechanisms have been proposed to explain the DA neurotoxicity. One possibility is that DA leads to the formation of free radicals which are cytotoxic. Another possibility is that direct dopamine receptor stimulation may mediate dopaminergic neurotoxicity. It is also possible that DA modulates excitotoxicity of excitatory amino acid.
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Affiliation(s)
- X Y Hou
- Research Center of Biochemistry and Molecular Biology, Xuzhou Medical College, Xuzhou 221002
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Zhu GY, Hou XY, Shen Y, Chen MY, Wang SH. [Analysis of 50 cases of sexual dysfunction]. Fa Yi Xue Za Zhi 1999; 15:149-51, 190. [PMID: 12536447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Fifty cases of male sexual dysfunction were analyzed in order to investigate the incidence and causes of the erectile dysfunction in the different injuries. The results showed that the incidence of erectile dysfunction of the patients with brevic fracture and urethra injury is 62.50%, main caused by the damage of pudendal nervous and arterial system. The incidence in the patients with the spinal fracture and light spinal cord injury is 50%, caused by the damage of nervous system. The erection in the 17 cases of the patients with only one testis injury is normal. Two cases with bilateral testis injury have suffered from erectile dysfunction.
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Affiliation(s)
- G Y Zhu
- Institute of Forensic Sciences, Ministry of Justice, Shanghai 200063, P. R. China
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Affiliation(s)
- J D Chen
- Research Division of Sports Nutrition and Biochemistry, Beijing Medical University, China
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Hou XY. [Investigation on the immunopathogenesis of toxemia of pregnancy]. Zhonghua Fu Chan Ke Za Zhi 1984; 19:7-10. [PMID: 6745004] [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: 01/21/2023]
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