1
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Zhao J, Chen XY, Zheng SJ. [Research progress on the effect of hepatitis B virus DNA integration on antiviral therapy]. Zhonghua Gan Zang Bing Za Zhi 2024; 32:375-379. [PMID: 38733195 DOI: 10.3760/cma.j.cn501113-20230724-00017] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/13/2024]
Abstract
Hepatitis B virus (HBV) DNA integration occurs during the reverse transcription process of HBV replication, which develops in the early stages of HBV infection and accompanies the entire disease course. The integration of HBV DNA is detrimental to the attainment of clinical cure goals and also raises the risk of developing liver cancer. Theoretically, nucleos(t)ide analogs can reduce the synthesis of new double-stranded linear DNA, but there is no clearance function for hepatocytes that have already integrated HBV. Therefore, patients with serum HBV DNA-negative conversions still have the risk of developing liver cancer. As an immunomodulatory drug, interferon can not only inhibit viral replication but also inhibit or even eliminate existing clonally amplified hepatocytes carrying integrated HBV DNA fragments. However, there are currently few studies on the effects of nucleos(t)ide analogues and interferon therapy on HBV DNA integration. Thus, large-scale clinical studies are urgently needed for further clarification.
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Affiliation(s)
- J Zhao
- First Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - X Y Chen
- First Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - S J Zheng
- First Department of Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
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2
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Liang C, Liang ZC, Liu H, Bai L, Zhao J, Tang S, Chen XY, Hu ZJ, Wang L, Zheng SJ. [A case report on the diagnosis and treatment of chronic hepatitis E after kidney transplantation]. Zhonghua Gan Zang Bing Za Zhi 2024; 32:72-75. [PMID: 38320794 DOI: 10.3760/cma.j.cn501113-20231116-00196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Affiliation(s)
- C Liang
- Liver Disease Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - Z C Liang
- Department of Microbiology, Peking University Health Science Center, Beijing 100191, China
| | - H Liu
- Department of Pathology, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - L Bai
- Liver Disease Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - J Zhao
- Liver Disease Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - S Tang
- Liver Disease Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - X Y Chen
- Liver Disease Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - Z J Hu
- Liver Disease Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - L Wang
- Department of Microbiology, Peking University Health Science Center, Beijing 100191, China
| | - S J Zheng
- Liver Disease Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
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3
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Liang C, Bai L, Duan ZP, Zheng SJ. [Epidemiological characteristics of familiar adult inherited metabolic liver disease]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:1224-1228. [PMID: 38238959 DOI: 10.3760/cma.j.cn501113-20220419-00211] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Inherited metabolic liver diseases can occur in multi-age groups such as children, adolescents, adults, and others. With the improvement of diagnosis and treatment levels, more and more patients with childhood-onset diseases are surviving into adulthood. Some diseases originally faced by pediatric hepatologists also appear in adult hepatology clinics. This raises new challenges for adult hepatologists, requiring them to master more professional knowledge. However, specific data on the incidence rate of most inherited metabolic liver diseases is still lacking in our country. This article reviews the research progress of hereditary metabolic liver diseases and summarizes the epidemiological characteristics of familiar hereditary metabolic liver diseases in China.
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Affiliation(s)
- C Liang
- First Department of Liver Disease, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - L Bai
- Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China Fourth Department of Liver Disease, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - Z P Duan
- Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China Fourth Department of Liver Disease, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - S J Zheng
- First Department of Liver Disease, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
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4
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Zhang GH, Chen LX, Chen X, Liu ZL, Yu LL, Zheng SJ, Du XY, Li SY. [Prevalence and influencing factors of abnormal spinal curvature in primary and secondary school students in Shandong Province in 2020]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1839-1842. [PMID: 38008574 DOI: 10.3760/cma.j.cn112150-20221209-01190] [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: 11/28/2023]
Abstract
In 2020, the prevalence of abnormal spinal curvature among 54 079 students in Shandong Province was 1.54%. The multivariate logistic regression model analysis showed that, compared with those in primary school, economically underdeveloped areas, and non-residential schools, students in middle and high schools, economically average areas, and residential schools had a higher risk of abnormal spinal curvature, with OR (95%CI) values of 2.029 (1.662-2.476), 2.746 (2.208-3.416), 2.237 (1.740-2.875) and 2.057 (1.705-2.483), respectively. Compared with those in economically underdeveloped areas, who were underweight, who had seat adjustments≤1 time per academic year, and who had physical education classes≤1 per week, students in economically developed areas, who were normal weight, overweight, and obese, who had seat adjustments≥2 times per academic year, and who had physical education classes 2-3 or≥4 per week, had a lower risk of abnormal spinal curvature, with OR (95%CI) values of 0.690 (0.521-0.915), 0.722 (0.546-0.955), 0.535 (0.389-0.735), 0.383 (0.274-0.535), 0.835 (0.711-0.980), 0.561 (0.474-0.663) and 0.491 (0.315-0.766), respectively.
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Affiliation(s)
- G H Zhang
- Department of Health Management, Shandong Center for Disease Control and Prevention, Shandong province, Jinan 250014, China
| | - L X Chen
- Department of Health Management, Shandong Center for Disease Control and Prevention, Shandong province, Jinan 250014, China
| | - X Chen
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Shandong province, Jinan 250014, China
| | - Z L Liu
- Department of Health Management, Shandong Center for Disease Control and Prevention, Shandong province, Jinan 250014, China
| | - L L Yu
- Department of Health Management, Shandong Center for Disease Control and Prevention, Shandong province, Jinan 250014, China
| | - S J Zheng
- Department of Health Management, Shandong Center for Disease Control and Prevention, Shandong province, Jinan 250014, China
| | - X Y Du
- Department of Health Management, Shandong Center for Disease Control and Prevention, Shandong province, Jinan 250014, China
| | - S Y Li
- Department of Health Management, Shandong Center for Disease Control and Prevention, Shandong province, Jinan 250014, China
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5
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Wang Z, Hou W, Zheng SJ. [Rare causes of abnormal liver function in a case of renal cysts and diabetes syndrome]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:752-755. [PMID: 37580260 DOI: 10.3760/cma.j.cn501113-20230619-00267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Affiliation(s)
- Z Wang
- First Department of the Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - W Hou
- First Department of the Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - S J Zheng
- First Department of the Liver Disease Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
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6
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Luo L, Yao XB, Zheng SJ, Yang WL. [A family study of the compound heterozygous mutation of the UGT1A1 gene causing Crigler-Najjar syndrome type II]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:168-173. [PMID: 37137832 DOI: 10.3760/cma.j.cn501113-20211124-00580] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Objective: To investigate the family gene features in Crigler-Najjar syndrome (CNS) type II. Methods: The UGT1A1 gene and related bilirubin metabolism genes were comprehensively analysed in a CNS-II family (3 CNS-II, 1 Gilbert syndrome, and 8 normal subjects). The genetics basis of CNS-II were investigated from the perspective of family analysis. Results: In three cases, compound heterozygous mutations at three sites of the UGT1A1 gene (c.-3279T > G, c.211G > A and c.1456T > G) caused CNS-II. Gilbert syndrome and CNS-II were not significantly associated with distribution or diversity loci. Conclusion: The compound heterozygous pathogenic mutations (c.-3279T > G, c.211G > A, and c.1456T > G) at three loci of the UGT1A1 gene may be the feature of the newly discovered CNS-II family genes based on the CNS-II family study.
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Affiliation(s)
- L Luo
- Department of Infectious Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - X B Yao
- Department of Infectious Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - S J Zheng
- First Department of Hepatology Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - W L Yang
- Department of Infectious Diseases, the Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
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7
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Liu NC, Duan ZP, Zheng SJ. [Nonalcoholic fatty liver disease and bilirubin: correlation, mechanism, and therapeutic perspectives]. Zhonghua Gan Zang Bing Za Zhi 2023; 31:101-104. [PMID: 36948857 DOI: 10.3760/cma.j.cn501113-20210703-00313] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 03/24/2023]
Abstract
Non-alcoholic fatty liver disease (NAFLD) is a metabolic-related disorder induced by multiple factors and mainly characterized by excessive fat buildup in hepatocytes. With the consumption of a Western-style diet and obesity prevalence in recent years, the incidence of NAFLD has gradually increased, becoming an increasingly serious public health problem. Bilirubin is a heme metabolite and a potent antioxidant. Studies have demonstrated that bilirubin levels have an inverse correlation with the incidence rate of NAFLD; however, which form of bilirubin plays the main protective role is still controversial. It is considered that the main protective mechanisms for NAFLD are bilirubin antioxidant properties, insulin resistance reduction, and mitochondrial function. This article summarizes the correlation, protective mechanism, and possible clinical application of NAFLD and bilirubin.
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Affiliation(s)
- N C Liu
- The First Department of Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Z P Duan
- The Fourth Department of Liver Center, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - S J Zheng
- The First Department of Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
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8
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Liu H, Liang C, Zheng SJ, Wang TL. [Considerations on pathological diagnosis of inherited metabolic liver disease]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:1253-1258. [PMID: 36891707 DOI: 10.3760/cma.j.cn501113-20220803-00407] [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: 03/10/2023]
Abstract
A liver biopsy has an important suggestive role in the diagnosis of inherited metabolic liver disease (IMLD). This article introduces the IMLD pathological diagnosis considerations, five types of classification of liver biopsy based on the morphological characteristics (basic normal liver tissue morphology, steatosis, cholestatic disease, storage/deposition, and hepatitis), and a summary of the pathological characteristics of different injury patterns and common diseases in order to provide clues for the correct diagnosis.
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Affiliation(s)
- H Liu
- Department of Pathology, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - C Liang
- The First Department of Liver Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - S J Zheng
- The First Department of Liver Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - T L Wang
- Department of Pathology, China-Japan Friendship Hospital, Beijing 100029, China
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9
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Hou W, Zheng SJ, Duan ZP. [An introduction to multidisciplinary recommendations for Wilson's disease comprehensive diagnosis and management: 2022 practice guidance from the American Association for the Study of Liver Diseases]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:1151-1153. [PMID: 36891689 DOI: 10.3760/cma.j.cn501113-20221102-00535] [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: 03/10/2023]
Abstract
The incidence of Wilson's disease (WD) is global, with an estimated prevalence rate of 30 per million or higher. WD clinical manifestations can be liver disease, progressive neurologic deficits (non evident or even absent liver dysfunction), psychiatric disorders, or a combination of these. Children and younger patients are more likely to develop WD as an isolated liver disease than older patients. Symptoms are often vague and can appear at any age. To that end, in 2022, the American Association for the Study of Liver Diseases published the full version of the WD guidelines and recommendations developed by a panel of experts, providing a modern approach for WD diagnosis and management in an effort to assist clinicians in implementing the most recent diagnostic and management strategies.
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Affiliation(s)
- W Hou
- The First Department of Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - S J Zheng
- The First Department of Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Z P Duan
- The First Department of Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
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10
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Liang C, Zheng SJ, Duan ZP. [Introduction to the recommendations from the European Association for the Study of the Liver clinical practice guidelines on the management of cystic liver disease]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:931-933. [PMID: 36299185 DOI: 10.3760/cma.j.cn501113-20220719-00388] [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: 06/16/2023]
Abstract
The diagnosis of cystic liver disease has made great progress with the advent of enhanced imaging techniques. At the same time, its management has gradually improved over the past few decades, providing the basis for the development of appropriate diagnostic and treatment guidelines. To this end, the European Association for the Study of the Liver has developed clinical guidelines for the diagnosis and treatment of non-infectious cystic liver disease. This guideline put forward recommendations based on an in-depth review of the relevant literature for addressing clinical issues, including the diagnosis and treament of hepatic cysts, hepatic mucocystic tumors, biliary hamartomas, polycystic liver disease, Caroli disease or Caroli syndrome, biliary hamartomas, and peribiliary cyst.
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Affiliation(s)
- C Liang
- The Department of Liver Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - S J Zheng
- The Department of Liver Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - Z P Duan
- The Department of Liver Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
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11
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Tang S, Zheng SJ, Duan ZP. [Recommendations of EASL clinical practice guidelines on haemochromatosis]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:934-938. [PMID: 36299186 DOI: 10.3760/cma.j.cn501113-20220717-00384] [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: 06/16/2023]
Abstract
Haemochromatosis is characterised by elevated transferrin saturation (TSAT) and progressive iron loading that mainly affects the liver. Early diagnosis and treatment by phlebotomy can prevent cirrhosis, hepatocellular carcinoma, diabetes, arthropathy and other complications. In patients homozygous for p.Cys282Tyr in HFE, provisional iron overload based on serum iron parameters (TSAT >45% and ferritin >200 μg/L in females and TSAT >50% and ferritin >300 μg/L in males and postmenopausal women) is sufficient to diagnose haemochromatosis. In patients with high TSAT and elevated ferritin but other HFE genotypes, diagnosis requires the presence of hepatic iron overload on MRI or liver biopsy. The stage of liver fibrosis and other end-organ damage should be carefully assessed at diagnosis because they determine disease management. Patients with advanced fibrosis should be included in a screening programme for hepatocellular carcinoma. Treatment targets for phlebotomy are ferritin <50 μg/L during the induction phase and <100 μg/L during the maintenance phase.
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Affiliation(s)
- S Tang
- The First Department of Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - S J Zheng
- The First Department of Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Z P Duan
- The First Department of Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
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12
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Liu YN, Fan R, Yang RF, Liu S, Wang J, Liao H, Qiu C, Deng R, Huang HX, Hu P, Zheng SJ, Zhang WH, Chen XM, Chen H, Sun J, Lu F. [Expert consensus on measurement and clinical application of serum HBV RNA in patients with chronic HBV infection]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:505-512. [PMID: 35764542 DOI: 10.3760/cma.j.cn501113-20220420-00214] [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: 06/15/2023]
Abstract
Since the discovery of circulating hepatitis B virus (HBV) RNA in the peripheral blood of patients with chronic hepatitis B in 1996, a growing number of studies have focused on clarifying the biological characteristics and clinical application value of serum HBV RNA. This consensus mainly summarizes the research progress of serum HBV RNA existing profiles, quantitative detection methods, and current clinical applications. In order to better apply this indicator for the clinical management of patients with chronic HBV infection, recommendations on quantitative detection target regions, detection results, and clinical applications are put forward.
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Affiliation(s)
- Y N Liu
- Department of Microbiology & Infectious Disease Center, Peking University Health Science Center, Beijing 100191, China
| | - R Fan
- Guangdong Provincial Institute of Liver Disease, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - R F Yang
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing 100044, China
| | - S Liu
- Guangdong Provincial Institute of Liver Disease, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J Wang
- Department of Microbiology & Infectious Disease Center, Peking University Health Science Center, Beijing 100191, China
| | - H Liao
- Department of Clinical Laboratory, Shenzhen Third People's Hospital, Southern University of Science and Technology, National Clinical Research Center for Infectious Diseases, Shenzhen 518112, China
| | - C Qiu
- Department of Infectious Diseases, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - R Deng
- Guangdong Provincial Institute of Liver Disease, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - H X Huang
- Department of Microbiology & Infectious Disease Center, Peking University Health Science Center, Beijing 100191, China
| | - P Hu
- Department of Infectious Diseases, the Second Affiliated Hospital of Chongqing Medical University, Institute for Viral Hepatitis of Chongqing Medical University, Chongqing 400010, China
| | - S J Zheng
- Liver Diseases Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - W H Zhang
- Department of Infectious Diseases, Huashan Hospital Affiliated to Fudan University, Shanghai 200040, China
| | - X M Chen
- Department of Microbiology & Infectious Disease Center, Peking University Health Science Center, Beijing 100191, China
| | - Hongsong Chen
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing 100044, China
| | - Jian Sun
- Guangdong Provincial Institute of Liver Disease, Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Fengmin Lu
- Peking University People's Hospital, Peking University Hepatology Institute, Beijing 100044, China Department of Microbiology & Infectious Disease Center, Peking University Health Science Center, Beijing 100191, China
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13
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Liu XH, Zheng SJ, Gao LY, Zhang L. [A case of hemochromatosis associated with transferrin receptor 2 gene mutations]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:325-327. [PMID: 35462491 DOI: 10.3760/cma.j.cn501113-20201230-00685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- X H Liu
- Department of Infectious, The First Hospital of Shanxi Medical University, Taiyuan 030000, China
| | - S J Zheng
- Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - L Y Gao
- Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - Liaoyun Zhang
- Department of Infectious, The First Hospital of Shanxi Medical University, Taiyuan 030000, China
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14
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Hou W, Zheng SJ, Duan Z. [Interpretation of the 2022 edition guidelines for hepatolenticular degeneration diagnosis and treatment]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:276-278. [PMID: 35462482 DOI: 10.3760/cma.j.cn501113-20220211-00065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In order to help liver disease-related clinicians make rational decisions, the Inherited and Metabolic Liver Disease Cooperative Group of Hepatology Branch of Chinese Medical Association released the 2022 edition guidelines for hepatolenticular degeneration diagnosis and treatment. This article introduces the ten highlights of this guideline from the aspects of epidemiology, pathogenesis, clinical characteristics, laboratory tests, diagnosis, treatment, monitoring, and so forth, with practicality and operability as prominent features.
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Affiliation(s)
- W Hou
- The First Department of the Liver Disease Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - S J Zheng
- The First Department of the Liver Disease Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - Zhongping Duan
- The Fourth Department of the Liver Disease Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
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15
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Liu YN, Yao MJ, Zheng SJ, Chen XM, Liu XY, Hu P, Ou QS, Dou XG, Chen HS, Duan ZP, Hou JL, Nan YM, Gao ZL, Xu XY, Zhuang H, Lu FM. [Clinical application of serum Golgi protein 73 in patients with chronic liver diseases]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:4-8. [PMID: 35152664 DOI: 10.3760/cma.j.cn501113-20210210-00084] [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
Golgi protein 73 (GP73) is a transmembrane protein on the Golgi apparatus and can be cut and released into the blood. In recent years, an increasing number of clinical studies have shown that the elevated serum GP73 level is closely related to liver diseases. And thus GP73 is expected to be used as a new serum marker for assessing progress of chronic liver diseases. Herein, the clinical application of serum GP73 in chronic hepatitis, liver fibrosis, liver cirrhosis and hepatocellular carcinoma with different etiologies was reviewed based on available literatures; and a research outlook in this field is made.
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Affiliation(s)
- Y N Liu
- Department of Microbiology and Center of Infectious Diseases, Peking University Health Science Center, Beijing 100191, China
| | - M J Yao
- Department of Anatomy and Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China
| | - S J Zheng
- Liver Diseases Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - X M Chen
- Department of Microbiology and Center of Infectious Diseases, Peking University Health Science Center, Beijing 100191, China
| | - X Y Liu
- Department of Clinical Laboratory, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - P Hu
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Q S Ou
- Department of Laboratory Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - X G Dou
- Department of Infectious Diseases, Shengjing Hospital, China Medical University, Shenyang 110022, China
| | - H S Chen
- Hepatology Institute, Peking University People's Hospital, Beijing 100044, China
| | - Z P Duan
- Liver Diseases Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - J L Hou
- Guangdong Provincial Key Laboratory of Viral Hepatitis Research, Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Y M Nan
- Department of Traditional and Western Medical Hepatology, Third Hospital of Hebei Medical University, Shijiazhuang 050051, China
| | - Z L Gao
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - X Y Xu
- Department of Infectious Diseases, Peking University First Hospital, Beijing 100034, China
| | - H Zhuang
- Department of Microbiology and Center of Infectious Diseases, Peking University Health Science Center, Beijing 100191, China
| | - F M Lu
- Department of Microbiology and Center of Infectious Diseases, Peking University Health Science Center, Beijing 100191, China Hepatology Institute, Peking University People's Hospital, Beijing 100044, China
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16
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Bai J, Zheng SJ, Duan ZP. [Management of hepatolenticular degeneration during pregnancy]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:107-109. [PMID: 35152680 DOI: 10.3760/cma.j.cn501113-20200807-00441] [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
Hepatolenticular degeneration (Wilson's disease, WD) is a kind of autosomal recessive genetic disease characterized by disorders of copper metabolism. It is caused by mutations in the ATP7B gene, resulting in impaired excretion of copper into the bile, and then pathological deposition in the liver, brain, and other organs. Early diagnosis and treatment can significantly improve the prognosis of patients with WD. However, there is still no clear consensus on the treatment and management of WD during pregnancy. Herein, the clinical management of WD during pregnancy is summarized for clinicians' reference.
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Affiliation(s)
- J Bai
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing You An Hospital, Capital Medical University & Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - S J Zheng
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing You An Hospital, Capital Medical University & Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - Z P Duan
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing You An Hospital, Capital Medical University & Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
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17
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Fu XT, Hu Y, Yan BC, Jiao YG, Zheng SJ, Wang YG, Zhang JY, Wang ZB. The Use of Blended Teaching in Higher Medical Education during the Pandemic Era. Int J Clin Pract 2022; 2022:3882975. [PMID: 36474552 PMCID: PMC9678442 DOI: 10.1155/2022/3882975] [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] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 09/05/2022] [Accepted: 10/05/2022] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE This study aims to compare the effect of blended teaching and traditional teaching in higher medical education during the pandemic era. METHODS Taking the teaching of neurology as an example, 293 Yangzhou University Clinical Medicine 2016 undergraduate students were selected as the research subjects, and were randomly divided into 2 groups a blended teaching group (n = 148) and a traditional teaching group (n = 145), and received blended teaching and traditional teaching, respectively. The blended teaching was based on a Massive Open Online Course, problem-based learning, and case-based learning and supplemented by Tencent video conferences, QQ messaging groups, and other auxiliary teaching tools. At the end of the course, the teaching effect and satisfaction rate were evaluated through theory assessment, practical skills assessment, and an anonymous questionnaire survey. RESULTS There were significant differences in theoretical achievements (81.83 ± 6.23 vs 76.79 ± 6.87, P < 0.001) and practical skill achievements (84.74 ± 6.50 vs 78.48 ± 6.53, P < 0.001). In addition, significant differences in all aspects of satisfaction rate were observed between the two groups (all P < 0.001). CONCLUSION Blended teaching is beneficial to students' learning and stimulates their enthusiasm, cultivates clinical thinking ability, and improves teaching quality. Thus, it has played a positive role in the reform of higher medical teaching during the pandemic era.
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Affiliation(s)
- Xue-Tao Fu
- Department of Neurology, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu, China
| | - Yi Hu
- Department of Education, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu, China
| | - Bing-Chun Yan
- Department of Neurology, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu, China
| | - Yun-Gen Jiao
- Department of Education, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu, China
| | - Shi-Jun Zheng
- Department of Education, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu, China
| | - Ying-Ge Wang
- Department of Neurology, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu, China
| | - Jiang-Yun Zhang
- Department of Education, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu, China
| | - Zheng-Bing Wang
- Department of Education, The Affiliated Hospital of Yangzhou University, Yangzhou 225000, Jiangsu, China
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18
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Bai J, Zheng SJ, Duan ZP. [Clinical features, diagnosis, and treatment strategies of progressive familial intrahepatic cholestasis]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:1128-1131. [PMID: 34933439 DOI: 10.3760/cma.j.cn501113-20200306-00091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- J Bai
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing You An Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - S J Zheng
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing You An Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - Z P Duan
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing You An Hospital, Capital Medical University, Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
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19
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Tang S, Duan ZP, Zheng SJ. [A brief talk on the diagnostic principle for inherited metabolic liver disease in adult]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:919-922. [PMID: 34814384 DOI: 10.3760/cma.j.cn501113-20210827-00435] [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: 06/13/2023]
Abstract
There are many types of inherited metabolic liver diseases, with diverse and non-specific clinical manifestations. Therefore, the problem of misdiagnosis and missed diagnosis is more prominent in clinical practice, and it is a problematic issue encountered by clinicians. The dependency of diagnosis is on comprehensive analysis of clinical manifestations, laboratory, imaging, liver biopsy, and genetic examinations. This article reviews the diagnostic principle for inherited metabolic liver disease in adult.
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Affiliation(s)
- S Tang
- The First Department of Liver Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
| | - Z P Duan
- The Fourth Department of Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - S J Zheng
- The First Department of Liver Center, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
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20
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Bai J, Duan ZP, Zheng SJ. [Inherited metabolic liver disease-associated infection]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:740-742. [PMID: 34517453 DOI: 10.3760/cma.j.cn501113-20210712-00336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Inherited metabolic liver disease is a wide-range of diseases that cause abnormal metabolism, resulting from genetic defects. Notably, some inherited metabolic liver diseases are closely associated to infection on account of specific substances abnormal metabolism or key enzyme activities deficiency. Therefore, understanding the inherited metabolic liver disease-associated infection would be helpful to clinical practice and improve patient prognosis.
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Affiliation(s)
- J Bai
- Liver Disease Centre, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - Z P Duan
- Liver Disease Centre, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069, China
| | - S J Zheng
- Liver Disease Centre, Beijing You'an Hospital, Capital Medical University, Beijing 100069, China
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21
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Liang C, Luo L, Bai J, Bai L, Bian DD, Ren Y, Liu S, Chen Y, Duan ZP, Zheng SJ. [Analysis of mutation site characteristics of Gilbert syndrome and Crigler--Najjar syndrome in relation to uridine diphosphate glucuronosyltransferase A1 gene]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:428-433. [PMID: 32536060 DOI: 10.3760/cma.j.cn501113-20200217-00051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the mutation characteristics and clinical relevance of Gilbert syndrome (GS) and Crigler-Najjar syndrome (CNS) in relation to uridine diphosphate glucuronosyltransferase A1 (UGT1A1) gene. Methods: The characteristics of UGT1A1 gene mutation and their clinical relevance were analyzed by searching PubMed and Human Gene Mutation Databases. Results: A total of 163 mutation sites were found in the UGT1A1 gene since November 16, 2018. The following patterns existed at the above sites: (1) the numbers of gene mutations occurring between different exons of UGT1A1 was related to GS or CNS phenotypes, and were positively correlated with the length of the exon; (2) nonsense point mutations was mainly occurred in type I of CNS; (3) GS, Crigler-Najjar syndrome type II compound heterozygous mutation sites had a certain combination and distribution, among which - 3279t > G mutation was found in all four GS complex heterozygous compositions; (4) UGT1A1 gene mutation sites reported in Asia had marked aggregation in c.211-c.558. Conclusion: UGT1A1 gene mutation characteristics and clinical relevance varies with different mutation sites, reporting areas and populations. This study has reference value for basic research and clinical diagnosis and treatment of GS and CNS.
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Affiliation(s)
- C Liang
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069,China; Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069,China
| | - L Luo
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069,China; Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069,China
| | - J Bai
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069,China; Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069,China
| | - L Bai
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069,China; Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069,China
| | - D D Bian
- Department of Infectious Diseases, Electric Power Teaching Hospital, Capital Medical University, Beijing 100073,China
| | - Y Ren
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069,China; Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069,China
| | - S Liu
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069,China; Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069,China
| | - Y Chen
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069,China; Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069,China
| | - Z P Duan
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069,China; Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069,China
| | - S J Zheng
- Difficult & Complicated Liver Diseases and Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069,China; Beijing Municipal Key Laboratory of Liver Failure and Artificial Liver Treatment Research, Beijing 100069,China
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22
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Li SS, Liu M, Kong M, Song WY, Zheng SJ, Chen Y. [A case of epithelioid hemangioendothelioma of the liver]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:68-70. [PMID: 30685929 DOI: 10.3760/cma.j.issn.1007-3418.2019.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- S S Li
- Difficult & Complicated Liver Disease and Artificial Liver Center, Beijing Youan Hospital of Capital Medical University, Beijing 100069, China
| | - M Liu
- Difficult & Complicated Liver Disease and Artificial Liver Center, Beijing Youan Hospital of Capital Medical University, Beijing 100069, China
| | - M Kong
- Difficult & Complicated Liver Disease and Artificial Liver Center, Beijing Youan Hospital of Capital Medical University, Beijing 100069, China
| | - W Y Song
- Imaging Department, Beijing Youan Hospital of Capital Medical University, Beijing 100069, China
| | - S J Zheng
- Difficult & Complicated Liver Disease and Artificial Liver Center, Beijing Youan Hospital of Capital Medical University, Beijing 100069, China
| | - Y Chen
- Difficult & Complicated Liver Disease and Artificial Liver Center, Beijing Youan Hospital of Capital Medical University, Beijing 100069, China
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23
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Zhang JY, Duan ZP, Zhang JL, Zheng SJ. [Research advances in the role of sphingolipids in HCV and HBV life cycles]. Zhonghua Gan Zang Bing Za Zhi 2017; 24:945-947. [PMID: 28073421 DOI: 10.3760/cma.j.issn.1007-3418.2016.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Sphingolipids and their metabolites are not only important structural molecules of the cell membrane, but also involved in all phases of viral life cycle, including cell adhesion, membrane fusion, viral replication, viral assembly, intracellular transport, protein sorting, and exocytosis. In recent years, sphingolipids have become one of the focuses of lipid research. This article reviews the role of sphingolipids in the life cycles of hepatitis C virus and hepatitis B virus with reference to recent research achievements in China and foreign countries.
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Affiliation(s)
- J Y Zhang
- Artificial Liver Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - Z P Duan
- Artificial Liver Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - J L Zhang
- State Key Laboratory of Bioactive Substances and Functions of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences& Peking Union Medical College, Beijing 100050, China
| | - S J Zheng
- Artificial Liver Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
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24
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Shao XH, Zheng SJ, Chen D, Jin QQ, Peng ZZ, Ma XL. Deformation twinning induced decomposition of lamellar LPSO structure and its re-precipitation in an Mg-Zn-Y alloy. Sci Rep 2016; 6:30096. [PMID: 27435638 PMCID: PMC4951811 DOI: 10.1038/srep30096] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [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: 02/17/2016] [Accepted: 06/29/2016] [Indexed: 11/24/2022] Open
Abstract
The high hardness or yield strength of an alloy is known to benefit from the presence of small-scale precipitation, whose hardening effect is extensively applied in various engineering materials. Stability of the precipitates is of critical importance in maintaining the high performance of a material under mechanical loading. The long period stacking ordered (LPSO) structures play an important role in tuning the mechanical properties of an Mg-alloy. Here, we report deformation twinning induces decomposition of lamellar LPSO structures and their re-precipitation in an Mg-Zn-Y alloy. Using atomic resolution scanning transmission electron microscopy (STEM), we directly illustrate that the misfit dislocations at the interface between the lamellar LPSO structure and the deformation twin is corresponding to the decomposition and re-precipitation of LPSO structure, owing to dislocation effects on redistribution of Zn/Y atoms. This finding demonstrates that deformation twinning could destabilize complex precipitates. An occurrence of decomposition and re-precipitation, leading to a variant spatial distribution of the precipitates under plastic loading, may significantly affect the precipitation strengthening.
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Affiliation(s)
- X H Shao
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, 110016 Shenyang, China
| | - S J Zheng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, 110016 Shenyang, China
| | - D Chen
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, 110016 Shenyang, China
| | - Q Q Jin
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, 110016 Shenyang, China
| | - Z Z Peng
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, 110016 Shenyang, China
| | - X L Ma
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, 72 Wenhua Road, 110016 Shenyang, China
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25
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Yang SQ, Qu W, Pan HB, Zhang YD, Zheng SJ, Fan XH, Shen Z. Effects of main chain and acceptor content on phase behaviors of hydrogen-bonded main-chain/side-chain combined liquid crystalline polymers. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.01.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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26
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Duan ZP, Zhou HY, Duan C, Wang Z, Chen Y, Zheng SJ, Liu S, Tang A, Li H. Survey of Treatment Costs to Hepatitis C in China. Value Health 2014; 17:A805. [PMID: 27203036 DOI: 10.1016/j.jval.2014.08.515] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- Z P Duan
- Wu Jieping Medical Foundation, Beijing, China
| | - H Y Zhou
- Wu Jieping Medical Foundation, Beijing, China
| | - C Duan
- Wu Jieping Medical Foundation, Beijing, China
| | - Z Wang
- Wu Jieping Medical Foundation, Beijing, China
| | - Y Chen
- Beijing You'an Hospital of Capital Medical University, Beijing, China
| | - S J Zheng
- Beijing You'an Hospital of Capital Medical University, Beijing, China
| | - S Liu
- Beijing You'an Hospital of Capital Medical University, Beijing, China
| | - A Tang
- Bristol Myers Squibb Foundation, New York, NY, USA
| | - H Li
- Shanghai JiaoTong University, Shanghai, China
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27
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Guo YL, Zhou JQ, Xiang CQ, Yang WH, Zhang B, Dai WJ, Liu JH, Zheng SJ. Monocyte/macrophage β2-AR as a target of antisympathetic excitation-induced atherosclerotic progression. Genet Mol Res 2014; 13:8080-8. [PMID: 25299192 DOI: 10.4238/2014.october.7.2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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 aim of this study was to determine whether monocyte/macrophage β2-AR could act as the therapeutic target of antisympathetic excitation-induced atherosclerotic progression. Cultivated human THP-1 cells were divided into different groups and incubated with isoprenaline, metoprolol, propranolol or β2-AR blocker for 24 h, together with oxidized low-density lipoprotein (ox-LDL). Afterwards, each group was analyzed for C-C chemokine receptor type 2 (CCR2) expression, monocyte chemotactic protein 1 (MCP-1) release into medium and cell migration ability. In the isoprenaline group, CCR2 protein level was increased, as well as the secretion of MCP-1, and cell motility was enhanced, in a concentration-dependent manner. Propranolol and ICI 118,551 significantly reversed the stimulatory effect of isoprenaline on THP-1 cells induced by ox-LDL, but only high concentrations of metoprolol interfered significantly with the action of isoprenaline (P < 0.05). Isoprenaline or a β-AR blocker could mediate through β2-AR, affecting MCP-1 secretion, CCR2 protein expression and cell migration capacity of THP-1 cells. Therefore, monocyte-macrophage β2-AR may act as a target of antisympathetic excitation-induced atherosclerotic progression.
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Affiliation(s)
- Y L Guo
- Cardiovascular Internal Department, Renhe Hospital, Three Gorges University, Yichang, Hubei, China
| | - J Q Zhou
- Cardiovascular Internal Department, Renhe Hospital, Three Gorges University, Yichang, Hubei, China
| | - C Q Xiang
- Cardiovascular Internal Department, Renhe Hospital, Three Gorges University, Yichang, Hubei, China
| | - W H Yang
- Cardiovascular Internal Department, Renhe Hospital, Three Gorges University, Yichang, Hubei, China
| | - B Zhang
- Cardiovascular Internal Department, Renhe Hospital, Three Gorges University, Yichang, Hubei, China
| | - W J Dai
- Cardiovascular Internal Department, Renhe Hospital, Three Gorges University, Yichang, Hubei, China
| | - J H Liu
- Cardiovascular Internal Department, Renhe Hospital, Three Gorges University, Yichang, Hubei, China
| | - S J Zheng
- Cardiovascular Internal Department, Renhe Hospital, Three Gorges University, Yichang, Hubei, China
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Fan W, Lou HQ, Gong YL, Liu MY, Wang ZQ, Yang JL, Zheng SJ. Identification of early Al-responsive genes in rice bean (Vigna umbellata) roots provides new clues to molecular mechanisms of Al toxicity and tolerance. Plant Cell Environ 2014; 37:1586-97. [PMID: 24372448 DOI: 10.1111/pce.12258] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 10/18/2013] [Revised: 12/08/2013] [Accepted: 12/10/2013] [Indexed: 05/06/2023]
Abstract
Significant secretion of citrate from root apex of rice bean (Vigna umbellata) is delayed by several hours under aluminium (Al) stress. However, the molecular basis of regulation of VuMATE1, a gene encoding an Al-activated citrate transporter, remains unclear. In this study, we used suppression subtractive hybridization together with reverse northern blot analysis and qRT-PCR to identify genes with altered transcript levels in the root apex after treatment with low (5 μm) or high (25 μm) concentration of AlCl(3) for a short time (4 h). We found that in addition to VuMATE1, 393 genes showed an early response to Al. Among functionally annotated genes, those related to 'metabolism and energy', 'signal transduction and transcription' and 'transport' was predominantly up-regulated, whereas those associated with 'protein translation, processing and degradation' was predominantly down-regulated. Comparative analysis of transcriptional profiles highlighted candidate genes associated with citrate secretion and revealed several new aspects of the molecular processes underlying Al toxicity and tolerance. Based on the data, it is proposed that metabolic changes represent adaptive mechanisms to Al stress, whereas inhibition of both cell elongation and cell division underlies Al-induced root growth inhibition.
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Affiliation(s)
- W Fan
- State Key Laboratory of Plant Physiology and Biochemistry, College of Life Sciences, Zhejiang University, Hangzhou, 310058, China
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29
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Zhou YT, Zhang B, Zheng SJ, Wang J, San XY, Ma XL. Atomic-scale decoration for improving the pitting corrosion resistance of austenitic stainless steels. Sci Rep 2014; 4:3604. [PMID: 24398863 PMCID: PMC3884226 DOI: 10.1038/srep03604] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [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: 09/04/2013] [Accepted: 12/03/2013] [Indexed: 11/09/2022] Open
Abstract
Stainless steels are susceptible to the localized pitting corrosion that leads to a huge loss to our society. Studies in the past decades confirmed that the pitting events generally originate from the local dissolution in MnS inclusions which are more or less ubiquitous in stainless steels. Although a recent study indicated that endogenous MnCr2O4 nano-octahedra within the MnS medium give rise to local nano-galvanic cells which are responsible for the preferential dissolution of MnS, effective solutions of restraining the cells from viewpoint of electrochemistry are being tantalizingly searched. Here we report such a galvanic corrosion can be greatly resisted via bathing the steels in Cu2+-containing solutions. This chemical bath generates Cu2−δS layers on the surfaces of MnS inclusions, invalidating the nano-galvanic cells. Our study provides a low-cost approach via an atomic scale decoration to improve the pitting corrosion resistance of stainless steels in a volume-treated manner.
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Affiliation(s)
- Y T Zhou
- 1] Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, 110016 Shenyang, China [2]
| | - B Zhang
- 1] Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, 110016 Shenyang, China [2]
| | - S J Zheng
- 1] Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, 110016 Shenyang, China [2]
| | - J Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, 110016 Shenyang, China
| | - X Y San
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, 110016 Shenyang, China
| | - X L Ma
- Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Wenhua Road 72, 110016 Shenyang, China
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Abstract
Toll-like receptors (TLR) mediate immune responses via the recognition of pathogen-associated molecular patterns, thus playing important roles in host defense. Among the chicken (Ch) TLR family, ChTLR1, 2, 4, 15, and 21 were shown to recognize bacterial components. In our earlier study, we reported polymorphisms of TLR1, 2, and 5. In the present study, we cloned TLR4, 15, and 21 genes from different chicken breeds and analyzed their sequences. We identified 9 amino acid polymorphism sites in ChTLR4 with 8 extracellular domain sites and 1 site in the cytoplasmic domain, 15 amino acid polymorphism sites in ChTLR15 with 14 extracellular domain sites and 1 site in the cytoplasmic domain, and 7 amino acid polymorphism sites in ChTLR21 with 5 extracellular domain sites and 2 sites in the cytoplasmic domain. These results demonstrate that ChTLR genes are polymorphic among different avian breeds, suggesting a varied resistance across numerous chicken breeds. This information might help improve chicken health by breeding and vaccination.
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Affiliation(s)
- W K Ruan
- College of Animal Science and Technology, Beijing University of Agriculture, Beijing, China.
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31
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Abstract
OBJECTIVE It has long been recognized that autoimmunity is often associated with immunodeficiency. The mechanism underlying this paradox is not well understood. Bcl-3 (B-cell lymphoma 3) is an atypical member of the IκB (inhibitor of the nuclear factor-κB) family that is required for lymphoid organogenesis and germinal center responses. Mice deficient in Bcl-3 are immunodeficient because of the microarchitectural defects of their lymphoid organs. The goal of this study is to define the potential roles of Bcl-3 in type 1 diabetes. RESEARCH DESIGN AND METHODS Bcl-3-deficient NOD mice were generated by backcrossing Bcl-3-deficient C57BL/6 mice to NOD mice. Spontaneous and induced type 1 diabetes were studied in these mice by both pathologic and immunologic means. The effect of Bcl-3 on inflammatory gene transcription was evaluated in a promoter reporter assay. RESULTS We found that Bcl-3-deficient NOD and C57BL/6 mice were, paradoxically, more susceptible to autoimmune diabetes than wild-type mice. The increase in diabetes susceptibility was caused by Bcl-3 deficiency in hematopoietic cells but not nonhematopoietic cells. Bcl-3 deficiency did not significantly affect anti-islet Th1 or Th2 autoimmune responses, but markedly increased inflammatory chemokine and T helper 17 (Th17)-type cytokine expression. Upon transfection, Bcl-3 significantly inhibited the promoter activities of inflammatory chemokine and cytokine genes. CONCLUSIONS These results indicate that in addition to mediating lymphoid organogenesis, Bcl-3 prevents autoimmune diabetes by inhibiting inflammatory chemokine and cytokine gene transcription. Thus, a single Bcl3 gene mutation leads to both autoimmunity and immunodeficiency.
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MESH Headings
- Animals
- B-Cell Lymphoma 3 Protein
- Cell Differentiation
- Chemokines/genetics
- Crosses, Genetic
- Diabetes Mellitus, Experimental/genetics
- Diabetes Mellitus, Experimental/pathology
- Diabetes Mellitus, Experimental/physiopathology
- Diabetes Mellitus, Type 1/genetics
- Diabetes Mellitus, Type 1/physiopathology
- Diabetes Mellitus, Type 1/prevention & control
- Gene Expression Regulation
- Genes, Reporter
- Genetic Predisposition to Disease
- Genotype
- Luciferases/genetics
- Major Histocompatibility Complex
- Mice
- Mice, Inbred C57BL
- Mice, Inbred NOD
- Mutation
- Promoter Regions, Genetic
- Proto-Oncogene Proteins/deficiency
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/physiology
- Reverse Transcriptase Polymerase Chain Reaction
- Transcription Factors/deficiency
- Transcription Factors/genetics
- Transcription Factors/physiology
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Affiliation(s)
- Qingguo Ruan
- From the Department of Pathology and Laboratory of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Shi-Jun Zheng
- From the Department of Pathology and Laboratory of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Scott Palmer
- From the Department of Pathology and Laboratory of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Ruaidhri J. Carmody
- From the Department of Pathology and Laboratory of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
| | - Youhai H. Chen
- From the Department of Pathology and Laboratory of Medicine, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
- Corresponding author: Youhai H. Chen,
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32
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Zhang SY, He KK, Zheng SJ, Tang SF, Zhang XJ, Li ZF. Synthesis of Schiff Base-type Liquid Crystalline Crown Ethers Containing Dibenzo-18-Crown-6 Unit. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20040220415] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Pang P, Chen FY, Tang J, Ma LF, Wang JC, Zheng SJ. Avian leukosis virus p27 inhibits tumor necrosis factor alpha expression in RAW264.7 macrophages after stimulation with lipopolysaccharide. Acta Virol 2010; 54:119-24. [PMID: 20545441 DOI: 10.4149/av_2010_02_119] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
UNLABELLED Avian leukosis is a widely distributed disease caused by Avian leukosis virus (ALV). ALV p27 is a capsid protein and group specific antigen, whose role in host immune response is poorly understood. To explore ALV p27, we developed a RAW264.7 macrophage cell line stably expressing p27-GFP fusion protein. The cells of this line and control cell line expressing GFP protein only were compared in production of tumor necrosis factor alpha (TNF-alpha), interleukins IL-1beta, IL-6, IL-12, and in proliferative activity stimulated by the lipopolysaccharide (LPS). It was found that the ALV p27 expression markedly reduced the production of TNF-alpha, but did not affect the production of IL-1beta, IL-6, and 12, and cell proliferative activity. These results demonstrate that ALV p27 specifically inhibits TNF-alpha expression in the macrophages stimulated by LPS, suggesting a possible contribution of ALV p27 to immunosuppression detected in ALV-infected hosts. KEYWORDS Avian leukosis virus; p27; tumor necrosis factor alpha; interleukins; macrophages; lipopolysaccharide.
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Affiliation(s)
- P Pang
- State Key Laboratory of Agrobiotechnology, Beijing 100193, PR, China
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34
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Cheng WM, An L, Wu ZH, Zhu YB, Liu JH, Gao HM, Li XH, Zheng SJ, Chen DB, Tian JH. Effects of disulfide bond reducing agents on sperm chromatin structural integrity and developmental competence of in vitro matured oocytes after intracytoplasmic sperm injection in pigs. Reproduction 2009; 137:633-43. [PMID: 19155332 DOI: 10.1530/rep-08-0143] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We recently reported that electrical activation followed by secondary chemical activation greatly enhanced the developmental competence of in vitro matured porcine oocytes fertilized by intracytoplasmic sperm injection (ICSI). We hypothesized that sperm treatment with disulfide bond reducing agents will enhance the development competence of porcine embryos produced by this ICSI procedure. We examined the effects of glutathione (GSH), dithiothreitol (DTT), GSH or DTT in combination with heparin on sperm DNA structure, paternal chromosomal integrity, pronuclear formation, and developmental competence of in vitro matured porcine oocytes after ICSI. Acridine orange staining and flow cytometry based sperm chromatin structure assay were used to determine sperm DNA integrity by calculating the cells outside the main population (COMP alphaT). No differences were observed in COMP alphaT values among GSH-treated and control groups. COMP alphaT values in GSH-treated groups were significantly lower than that in DTT-treated groups. Following ICSI, GSH treatments did not significantly alter paternal chromosomal integrity. Paternal chromosomal integrity in sperm treated with DTT plus or minus heparin was also the lowest among all groups. GSH-treated sperm yielded the highest rates of normal fertilization and blastocyst formation, which were significantly higher than that of control and DTT-treated groups. The majority of blastocysts derived from control and GSH-treated spermatozoa were diploid, whereas blastocysts derived from DTT-treated spermatozoa were haploid. In conclusion, sperm treatment with GSH enhanced the developmental capacity of porcine embryos produced by our optimized ICSI procedure.
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Affiliation(s)
- Wen-Min Cheng
- Key Laboratory of Animal Genetics and Breeding of the Ministry of Agriculture, College of Animal Sciences and Technology, China Agricultural University, Beijing
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35
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Wang L, Suo X, Chen FY, Zheng SJ. Expression of Newcastle disease virus (NDV) M protein from a recombinant plasmid prolongs the survival of NDV-infected chicken embryos and enhances the virus replication. Acta Virol 2009; 53:105-10. [PMID: 19537911 DOI: 10.4149/av_2009_02_105] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
To explore the role of M protein in the replication of NDV in chicken embryos, the M gene was cloned and inserted into plasmid pcDNA4.0. Western blot analysis showed that the M protein was expressed in DF-1 cells after transfection with M gene plasmid. Chicken embryonated eggs inoculated with the M gene plasmid and 2 days later infected with NDV showed 10 times higher hemagglutination (HA) titers and an increased survival of the embryos as compared with the embryos inoculated with the empty plasmid. These data indicated that the expression of M protein in the NDV-infected chicken embryos primarily prolonged their survival and consequently enhanced virus replication.
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Affiliation(s)
- L Wang
- State Key Laboratory of Agrobiotechnology, College of Veterinary Medicine, China Agricultural University, Beijing, PR China
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36
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Zheng SP, Zheng SJ, Wu RL, Huang FY, Cao LM, Jiao CL. Enhanced efficacy in anti-tumour activity by combined therapy of recombinant FGFR-1 related angiogenesis and low-dose cytotoxic agent. Eur J Cancer 2007; 43:2134-9. [PMID: 17720490 DOI: 10.1016/j.ejca.2007.07.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2007] [Revised: 07/03/2007] [Accepted: 07/16/2007] [Indexed: 11/23/2022]
Abstract
Fibroblast growth factor receptor-1 (FGFR-1) has been used as a target for anti-angiogeneic therapy of cancer. The strategies of combining anti-angiogenic biotherapy with chemotherapeutic drugs show potential and promise for cancer therapy. In this study, we evaluated the anti-tumour efficacy of chicken FGFR-1 (cFR-1) vaccine combined with low-dose gemcitabine in two mice tumour models. We found that both the cFR-1 vaccine and low-dose gemcitabine can suppress tumour growth to some extent. Remarkably, the combination strategy produces an apparent decrease in tumour volume, microvessel density and tumour cell proliferation, and an increase of apoptosis without obvious side-effects compared with either therapy alone. Moreover, the combination strategy also demonstrated synergistic indices against tumour growth and angiogenesis. Furthermore, auto-antibodies against mouse FGFR-1 were identified. These findings support the idea that the combination strategy synergistically strengthens anti-tumour activity via suppression of tumour angiogenesis without overt toxicity in tumour-bearing mice.
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Affiliation(s)
- S P Zheng
- Pathology Department of Affiliated Hospital and Hainan Provincial Key Laboratory of Tropical Medicine, Hainan Medical College, Haikou 571101, People's Republic of China
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37
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Hilliard A, Hilliard B, Zheng SJ, Sun H, Miwa T, Song W, Göke R, Chen YH. Translational regulation of autoimmune inflammation and lymphoma genesis by programmed cell death 4. J Immunol 2007; 177:8095-102. [PMID: 17114484 DOI: 10.4049/jimmunol.177.11.8095] [Citation(s) in RCA: 132] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Both inflammatory diseases and cancer are associated with heightened protein translation. However, the mechanisms of translational regulation and the roles of translation factors in these diseases are not clear. Programmed cell death 4 (PDCD4) is a newly described inhibitor of protein translation. To determine the roles of PDCD4 in vivo, we generated PDCD4-deficient mice by gene targeting. We report here that mice deficient in PDCD4 develop spontaneous lymphomas and have a significantly reduced life span. Most tumors are of the B lymphoid origin with frequent metastasis to liver and kidney. However, PDCD4-deficient mice are resistant to inflammatory diseases such as autoimmune encephalomyelitis and diabetes. Mechanistic studies reveal that upon activation, PDCD4-deficient lymphocytes preferentially produce cytokines that promote oncogenesis but inhibit inflammation. These results establish that PDCD4 controls lymphoma genesis and autoimmune inflammation by selectively inhibiting protein translation in the immune system.
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Affiliation(s)
- Anja Hilliard
- Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, 421 Curie Boulevard, Philadelphia, PA 19104, USA
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38
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39
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Abstract
The tumor suppressor p53 regulates apoptosis, cell cycle, and oncogenesis. To explore the roles of p53 in autoimmunity, we studied type 1 diabetes and innate immune responses using C57BL/6 mice deficient in p53. We found that p53-deficient mice were more susceptible to streptozotocin-induced diabetes than control mice, and they produced higher levels of interleukin-1, -6, and -12. The innate immune response of p53-/- macrophages to lipopolysaccharides and gamma-interferon was significantly enhanced compared with p53+/+ cells. p53-/- macrophages produced more proinflammatory cytokines and higher levels of total and phosphorylated signal transducer and activator of transcription (STAT)-1. These results indicate that p53 inhibits autoimmune diabetes and innate immune responses through downregulating STAT-1 and proinflammatory cytokines.
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Affiliation(s)
- Shi-Jun Zheng
- 614 BRB-II/III, Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, 421 Curie Blvd., Philadelphia, PA 19104, USA
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40
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Abstract
Listeriosis is an infectious disease caused by the bacterium Listeria monocytogenes. Although it is well recognized that apoptosis plays a critical role in the pathogenesis of the disease, the molecular mechanisms of cell death in listeriosis remain to be established. We report in this study that mice deficient in TRAIL were partially resistant to primary listeriosis, and blocking TRAIL with a soluble death receptor 5 markedly ameliorated the disease. The numbers of Listeria in the liver and spleen of TRAIL+/+ mice were 10-100 times greater than those in TRAIL-/- mice following primary Listeria infection. This was accompanied by a significant increase in the survival rate of TRAIL-/- mice. Lymphoid and myeloid cell death was significantly inhibited in TRAIL-/- mice, which led to marked enlargement of the spleen. These results establish a critical role for TRAIL in apoptosis during listeriosis.
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Affiliation(s)
- Shi-Jun Zheng
- Department of Pathology, University of Pennsylvania, Philadelphia, PA 19104, USA
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41
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Abstract
The TNF-related apoptosis-inducing ligand (TRAIL) induces apoptosis of tumor cells but not most normal cells. Its role in hepatic cell death and hepatic diseases is not clear. In vitro studies suggest that murine hepatocytes are not sensitive to TRAIL-induced apoptosis, indicating that TRAIL may not mediate hepatic cell death. Using two experimental models of hepatitis, we found that hepatic cell death in vivo was dramatically reduced in TRAIL-deficient mice and mice treated with a blocking TRAIL receptor. Although both TRAIL and its death receptor 5 were constitutively expressed in the liver, TRAIL expression by immune cells alone was sufficient to restore the sensitivity of TRAIL-deficient mice to hepatitis. Thus, TRAIL plays a crucial role in hepatic cell death and hepatic inflammation.
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Affiliation(s)
- Shi-Jun Zheng
- Department of Pathology and Laboratory Medicine, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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42
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Zheng SJ, Wang P, Tsabary G, Chen YH. Critical roles of TRAIL in hepatic cell death and hepatic inflammation. J Clin Invest 2004; 113:58-64. [PMID: 14702109 PMCID: PMC300768 DOI: 10.1172/jci19255] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2003] [Accepted: 11/04/2003] [Indexed: 12/18/2022] Open
Abstract
The TNF-related apoptosis-inducing ligand (TRAIL) induces apoptosis of tumor cells but not most normal cells. Its role in hepatic cell death and hepatic diseases is not clear. In vitro studies suggest that murine hepatocytes are not sensitive to TRAIL-induced apoptosis, indicating that TRAIL may not mediate hepatic cell death. Using two experimental models of hepatitis, we found that hepatic cell death in vivo was dramatically reduced in TRAIL-deficient mice and mice treated with a blocking TRAIL receptor. Although both TRAIL and its death receptor 5 were constitutively expressed in the liver, TRAIL expression by immune cells alone was sufficient to restore the sensitivity of TRAIL-deficient mice to hepatitis. Thus, TRAIL plays a crucial role in hepatic cell death and hepatic inflammation.
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Affiliation(s)
- Shi-Jun Zheng
- Department of Pathology and Laboratory Medicine, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
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43
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Zheng SJ, Chen YH. Response to Cretney et al. Immunol Res 2004. [DOI: 10.1385/ir:30:2:257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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44
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Lamhamedi-Cherradi SE, Zheng SJ, Maguschak KA, Peschon J, Chen YH. Defective thymocyte apoptosis and accelerated autoimmune diseases in TRAIL-/- mice. Nat Immunol 2003; 4:255-60. [PMID: 12577054 DOI: 10.1038/ni894] [Citation(s) in RCA: 260] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2002] [Accepted: 01/14/2003] [Indexed: 01/02/2023]
Abstract
TRAIL, the tumor necrosis factor-related apoptosis-inducing ligand, selectively induces apoptosis of tumor cells, but not most normal cells. Its role in normal, nontransformed tissues is not clear. We report here that mice deficient in TRAIL have a severe defect in thymocyte apoptosis-thus, thymic deletion induced by T cell receptor ligation is severely impaired. TRAIL-deficient mice are also hypersensitive to collagen-induced arthritis and streptozotocin-induced diabetes and develop heightened autoimmune responses. Thus, TRAIL mediates thymocyte apoptosis and is important in the induction of autoimmune diseases.
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Affiliation(s)
- Salah-Eddine Lamhamedi-Cherradi
- Department of Pathology and Laboratory Medicine, School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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45
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Chen YX, He YF, Yang Y, Yu YL, Zheng SJ, Tian GM, Luo YM, Wong MH. Effect of cadmium on nodulation and N2-fixation of soybean in contaminated soils. Chemosphere 2003; 50:781-7. [PMID: 12688491 DOI: 10.1016/s0045-6535(02)00219-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The effects of cadmium stress on nodulation, N2-fixation capabilities of the root nodule, the change in ultrastructure of the root nodule, soybean growth, and the distribution of cadmium in plants were studied. The results obtained show that the nodulation of soybean roots was greatly inhibited by the addition of Cd, especially at the addition level of 10 and 20 mg kg(-1) soil. The inhibition of plant growth, especially the root growth, increased as the cadmium concentration increased, with deleterious effects observed for the roots. The weight ratio of soybean root/leaf decreased as the Cd concentration increased, which might explain the reason for nodulation decreases. The results also indicate that N2-fixation of root nodule was stimulated to some extent at the low levels of Cd addition, but decreased sharply with further increase of the Cd concentration. High Cd levels were also associated with changes in the ultrastructure of root nodule, in which the effective N2-fixing area was reduced and the N2-fixing cells in the area also reduced. In addition, the results also reveal that the content of Cd in different parts of the plants was as follows: roots >> stems > seeds, indicating that the accumulation of Cd by roots is much larger than that by any other part of the soybean plant, and might cause deleterious effects to root systems.
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Affiliation(s)
- Y X Chen
- Institute of Soil Science, Chinese Academy of Sciences, P.O. Box 821, Nanjing 210008, China.
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Abstract
Negative selection is a process whereby autoreactive lymphocytes are deleted through apoptosis. Negative selection is essential for self-tolerance and its breakdown may lead to the development of autoimmune diseases. Although the phenomenon of negative selection is well-recognized, its underlying molecular mechanisms are unclear. Recent studies using gene-knockout mice have provided new insights into the mechanisms of negative selection. In this review, we discuss the newly discovered roles of TRAIL and Bim in negative selection. Our main focus will be on T cells and T cell mediated autoimmune diseases.
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Affiliation(s)
- Shi-Jun Zheng
- Department of Pathology and Laboratory Medicine, School of Medicine, University of Pennsylvania, Philadelphia, PA
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47
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Zheng SJ, Henken B, Sofiari E, Jacobsen E, Krens FA, Kik C. Molecular characterization of transgenic shallots (Allium cepa L.) by adaptor ligation PCR (AL-PCR) and sequencing of genomic DNA flanking T-DNA borders. Transgenic Res 2001; 10:237-45. [PMID: 11437280 DOI: 10.1023/a:1016633410041] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Genomic DNA blot hybridization is traditionally used to demonstrate that, via genetic transformation, foreign genes are integrated into host genomes. However, in large genome species, such as Allium cepa L., the use of genomic DNA blot hybridization is pushed towards its limits, because a considerable quantity of DNA is needed to obtain enough genome copies for a clear hybridization pattern. Furthermore, genomic DNA blot hybridization is a time-consuming method. Adaptor ligation PCR (AL-PCR) of genomic DNA flanking T-DNA borders does not have these drawbacks and seems to be an adequate alternative to genomic DNA blot hybridization. Using AL-PCR we proved that T-DNA was integrated into the A. cepa genome of three transgenic lines transformed with Agrobacterium tumefaciens EHA 105 (pCAMBIA 1301). The AL-PCR patterns obtained were specific and reproducible for a given transgenic line. The results showed that T-DNA integration took place and gave insight in the number of T-DNA copies present. Comparison of AL-PCR and previously obtained genomic DNA blot hybridization results pointed towards complex T-DNA integration patterns in some of the transgenic plants. After cloning and sequencing the AL-PCR products, the junctions between plant genomic DNA and the T-DNA insert could be analysed in great detail. For example it was shown that upon T-DNA integration a 66 bp genomic sequence was deleted, and no filler DNA was inserted. Primers located within the left and right flanking genomic DNA in transgenic shallot plants were used to recover the target site of T-DNA integration.
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Affiliation(s)
- S J Zheng
- Plant Research International, Wageningen University and Research Center, The Netherlands
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48
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Shu LL, Yang XZ, Zheng SJ. [Human papillomavirus infection and carcinogenesis of cancer of the uterine cervix. I. Pathomorphology of 357 cervical tissues]. Zhonghua Zhong Liu Za Zhi 1987; 9:276-8. [PMID: 2824150] [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: 01/02/2023]
Abstract
Human papillomavirus (HPV) infection in the cervix was studied by pathomorphology for the first time in China according to Meisels and Fortin's criteria. Cervical condyloma was found in 257 out of 357 (71.99%) cervical tissues. 141 were simple condyloma, 50 dysplasia with condyloma and 66 carcinoma with condyloma. A zone of continuous transformation was observed between the condyloma and dysplasia or carcinoma. 141 simple condylomas were initially diagnosed as chronic cervicitis in 94 (66.67%) and as dysplasia in 29 (20.57%). The pathomorphologic features of condyloma have not been fully recognized before. In carcinogenesis of the cervical carcinoma, the fact that condyloma associated becomes severer in extent but less in incidence, conforms well to Meisels' view that condyloma is the precursor of carcinoma in situ. It is suggested that HPV infection is closely related to cervical carcinoma.
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Affiliation(s)
- L L Shu
- Jiangxi Medical College, Nanchang
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49
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Peng YW, Zheng SJ, Jian WH. [Morphology and centripetal connections of nerve endings of the sinuvertebral nerve]. Zhonghua Wai Ke Za Zhi 1987; 25:363-7, 382-3. [PMID: 3691244] [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: 01/07/2023]
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50
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Peng YW, Zheng SJ, Jiang WH. [Morphology of the sinuvertebral nerve]. Zhonghua Wai Ke Za Zhi 1987; 25:300-3, 317-8. [PMID: 3677939] [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: 01/06/2023]
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