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Lou JQ, Li Y, Cui QW, Zhang P, Sun H, Tang H, Zhuang MM, Sun Y. [A prospectively randomized controlled study of the effects of intensive insulin therapy combined with glutamine on nutritional metabolism, inflammatory response, and hemodynamics in severe burn patients]. Zhonghua Shao Shang Za Zhi 2021; 37:821-830. [PMID: 34645147 DOI: 10.3760/cma.j.cn501120-20210428-00159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the effects of intensive insulin therapy combined with glutamine on nutritional metabolism, inflammatory response, and hemodynamics in severe burn patients. Methods: Thirty-two severe burn patients who met the inclusion criteria and hospitalized in the Affiliated Huaihai Hospital of Xuzhou Medical University from June 2017 to January 2019 were recruited into a prospectively randomized controlled study. According to the random number table, the patients were divided into conventional insulin therapy alone group, conventional insulin therapy+glutamine group, intensive insulin therapy alone group, and intensive insulin therapy+glutamine group, with 8 patients in each group, with genders of 5 males and 3 females, 4 males and 4 females, 3 males and 5 females, 4 males and 4 females, and ages of (35±7), (36±9), (33±11), and (38±7) years, respectively. Patients in conventional insulin therapy alone group were treated with conventional insulin therapy on the basis of routine treatment to control the blood glucose. Patients in conventional insulin therapy+glutamine group were supplemented with alanyl-glutamine for more than 14 days in addition to the treatment in conventional insulin therapy alone group. Patients in intensive insulin therapy alone group were treated with intensive insulin therapy on the basis of routine treatment to control the blood glucose. Patients in intensive insulin therapy+glutamine group were supplemented with alanyl-glutamine in addition to the treatment in intensive insulin therapy alone group. On treatment day (TD) 1, 3, 7, and 14, the blood glucose, albumin, prealbumin, white blood cell count, procalcitonin (PCT), and C-reactive protein (CRP) of patients in the 4 groups were detected. The cardiac index (CI), stroke volume index (SVI), global end-diastolic volume index (GEDVI), systemic vascular resistance index (SVRI), extravascular lung water index (EVLWI), and pulmonary vascular permeability index (PVPI) of patients in the 4 groups on TD 1, 3, and 7 were measured. Data were statistically analyzed with Fisher's exact probability test, one-way analysis of variance, analysis of variance for repeated measurement, and Bonferroni method. Results: All patients in the 4 groups successfully completed the study, and there were no withdrawal cases. On TD 3, 7, and 14, the blood glucose of patients in intensive insulin therapy alone group ((5.9±1.3), (5.8±0.6), (5.5±0.5) mmol/L) and intensive insulin therapy+glutamine group ((5.9±1.1), (5.6±1.1), (5.2±0.8) mmol/L) were significantly lower than those in conventional insulin therapy alone group ((9.1±0.5), (8.4±0.9), (7.4±1.1) mmol/L, P<0.05). Compared with those in conventional insulin therapy alone group, the levels of albumin of patients in conventional insulin therapy+glutamine group, intensive insulin therapy alone group, and intensive insulin therapy+glutamine group were significantly increased on TD 7 and 14 (P<0.05). Compared with the level of albumin of patients in intensive insulin therapy+glutamine group, the levels of albumin of patients in conventional insulin therapy+glutamine group and intensive insulin therapy alone group were significantly decreased on TD 14 (P<0.05). Compared with those in conventional insulin therapy alone group, the levels of prealbumin of patients in conventional insulin therapy+glutamine group and intensive insulin therapy alone group were significantly increased on TD 7 and 14 (P<0.05). Compared with those in intensive insulin therapy+glutamine group, the levels of prealbumin of patients in intensive insulin therapy alone group and conventional insulin therapy+glutamine group were significantly decreased on TD 1, 7, and 14 (P<0.05). There were no statistically significant differences in the white blood cell count, PCT, and CRP of patients in the 4 groups in pairwise comparison between groups on TD 1, 3, 7, and 14 (P>0.05). On TD 3 and 7, the levels of cardiac index, SVI, GEDVI, and SVRI of patients in intensive insulin therapy+glutamine group were significantly higher than those in conventional insulin therapy alone group (P<0.05), while the levels of EVLWI and PVPI were significantly lower than those in conventional insulin therapy alone group (P<0.05). Conclusions: Glutamine combined with intensive insulin therapy can improve the hypermetabolism in patients after severe burns, reduce the decomposition and consumption of endogenous nutrient substrates, and at the same time help the recovery of cardiac function and maintenance of hemodynamic stability.
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Affiliation(s)
- J Q Lou
- Department of Burns and Plastic Surgery, the 71st Group Army Hospital of PLA Army, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221004, China
| | - Y Li
- Department of Burns and Plastic Surgery, the 71st Group Army Hospital of PLA Army, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221004, China
| | - Q W Cui
- Department of Burns and Plastic Surgery, the 71st Group Army Hospital of PLA Army, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221004, China
| | - P Zhang
- Department of Burns and Plastic Surgery, the 71st Group Army Hospital of PLA Army, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221004, China
| | - H Sun
- Department of Burns and Plastic Surgery, the 71st Group Army Hospital of PLA Army, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221004, China
| | - H Tang
- Department of Burns and Plastic Surgery, the 71st Group Army Hospital of PLA Army, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221004, China
| | - M M Zhuang
- Department of Burns and Plastic Surgery, the 71st Group Army Hospital of PLA Army, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221004, China
| | - Y Sun
- Department of Burns and Plastic Surgery, the 71st Group Army Hospital of PLA Army, Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221004, China
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Yan LL, Tang H. [Several thoughts in regard to ALT threshold for initiating antiviral therapy in patients with chronic hepatitis B virus infection]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:881-882. [PMID: 34638209 DOI: 10.3760/cma.j.cn50501113-20210815-00402] [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: 02/05/2023]
Affiliation(s)
- L L Yan
- Center of Infectious Diseases, West China Hospital, Sichuan University; Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
| | - H Tang
- Center of Infectious Diseases, West China Hospital, Sichuan University; Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041, China
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Sun HB, Shan JL, Tang H. Percutaneous vertebral augmentation for osteoporotic vertebral compression fractures will increase the number of subsequent fractures at adjacent vertebral levels: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2021; 25:5176-5188. [PMID: 34486692 DOI: 10.26355/eurrev_202108_26531] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aimed to investigate whether percutaneous vertebral augmentation (PVA) was associated with clinical and radiological subsequent adjacent fractures in patients with osteoporotic vertebral compression fractures. MATERIALS AND METHODS The systematic review was performed following PRISMA guidelines. Data were retrieved from PubMed, EMBASE, Cochrane Library, Google Scholar, Web of Science, and ClinicalTrial.gov, from database inception to March 2020. Eligible studies were those that assessed subsequent adjacent fractures after PVA in comparison with conservative treatment (CT). The number of patients with adjacent secondary vertebral fractures was calculated, and the pooled risk ratio (RR) with its 95% confidence intervals (95% CI) was used. Moreover, heterogeneity, sensitivity, and publication bias analyses were performed. RESULTS Twenty-four studies were included finally. Moreover, 20/421 (4.75%) patients from the PVA group and 25/359 (6.96%) patients from the CT group had clinical subsequent adjacent fractures, and 46/440 (10.45%) patients from the PVA group and 36/444 (8.10%) patients from the CT group had radiological subsequent adjacent fractures. Both had no significant difference between the two groups (RR = 0.67, 95% CI [0.38, 1.19], p = 0.17)/(RR = 1.13, 95% CI [0.75, 1.70], p = 0.576). However, the number of fractured vertebrae was higher in the PVA group than in the CT group (RR = 1.41, 95% CI [1.03, 1.93], p = 0.03). A sensitivity analysis did not identify specific trials that seriously deflected. No obvious publication bias was identified. CONCLUSIONS The systematic review revealed that PVA did not increase the incidence for subsequent adjacent fractures regardless of whether they were clinical or radiological fractures. However, PVA can increase the number of subsequent fractures at adjacent vertebral levels.
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Affiliation(s)
- H-B Sun
- Department of Orthopedics, Beijing Friendship Hospital Capital Medical University (Capital Medical University Second Clinical Medical University), Xicheng District, Beijing, China.
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Tang H, Psota P, Rosowski JJ, Furlong C, Cheng JT. Analyses of the Tympanic Membrane Impulse Response Measured with High-Speed Holography. Hear Res 2021; 410:108335. [PMID: 34450569 DOI: 10.1016/j.heares.2021.108335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/02/2021] [Accepted: 08/04/2021] [Indexed: 10/20/2022]
Abstract
The Tympanic Membrane (TM) transforms acoustic energy to ossicular vibration. The shape and the displacement of the TM play an important role in this process. We developed a High-speed Digital Holography (HDH) system to measure the shape and transient displacements of the TM induced by acoustic clicks. The displacements were further normalized by the measured shape to derive surface normal displacements at over 100,000 points on the TM surface. Frequency and impulse response analyses were performed at each TM point, which enable us to describe 2D surface maps of four new TM mechanical parameters. From frequency domain analyses, we describe the (i) dominant frequencies of the displacement per sound pressure based on Frequency Response Function (FRF) at each surface point. From time domain analyses, we describe the (ii) rising time, (iii) exponential decay time, and the (iv) root-mean-square (rms) displacement of the TM based on Impulse Response Function (IRF) at each surface point. The resultant 2D maps show that a majority of the TM surface has a dominant frequency of around 1.5 kHz. The rising times suggest that much of the TM surface is set into motion within 50 µs of an impulsive stimulus. The maps of the exponential decay time of the IRF illustrate spatial variations in damping, the least known TM mechanical property. The damping ratios at locations with varied dominant frequencies are quantified and compared.
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Affiliation(s)
- H Tang
- Center for Holographic Studies and Laser Micro-mechaTronics (CHSLT), Worcester Polytechnic Institute, Worcester, MA United States; Mechanical Engineering Department, Worcester Polytechnic Institute, Worcester, MA United States; Eaton-Peabody Laboratory, Massachusetts Eye and Ear Infirmary, Boston, MA United States.
| | - P Psota
- Faculty of Mechatronics, Informatics and Interdisciplinary Studies, Technical University of Liberec, Liberec, Czech Republic
| | - J J Rosowski
- Eaton-Peabody Laboratory, Massachusetts Eye and Ear Infirmary, Boston, MA United States; Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, MA, United States
| | - C Furlong
- Center for Holographic Studies and Laser Micro-mechaTronics (CHSLT), Worcester Polytechnic Institute, Worcester, MA United States; Mechanical Engineering Department, Worcester Polytechnic Institute, Worcester, MA United States; Eaton-Peabody Laboratory, Massachusetts Eye and Ear Infirmary, Boston, MA United States; Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, MA, United States
| | - J T Cheng
- Eaton-Peabody Laboratory, Massachusetts Eye and Ear Infirmary, Boston, MA United States; Department of Otolaryngology-Head and Neck Surgery, Harvard Medical School, Boston, MA, United States
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Zhao JL, Liu X, Zhan L, Tang H, Li J, Liu M, Holdsworth E, Zhao Y. AB0221 CURRENT IMPLEMENTATION OF TREAT-TO-TARGET APPROACH IN RHEUMATOID ARTHRITIS TREATMENT: THE PERSPECTIVE OF CHINESE RHEUMATOLOGISTS. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.1960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Treat-to-target (T2T) approach is recommended as a standard management strategy in rheumatoid arthritis (RA) treatment by Chinese guideline for diagnosis and treatment of RA[1]. However, there is little known about its current implementation in China.Objectives:This study aimed to evaluate the implementation and achievement of T2T approach and explore their associated factors in Chinese RA cohort.Methods:A comprehensive cross-sectional survey of rheumatologists and their RA patients was conducted in China. Data were collected during May-Aug 2019 via physician-completed patient record forms. 60 rheumatologists provided data on demographic, clinical characteristics, treatments, and T2T approach implementation for 600 RA patients. Two logistic regressions were used to evaluate factors associated with T2T approach implementation and T2T goal achievement, respectively. Patients with missing data were not included in the models.Results:600 patients were included in this study (48.8±11.7 years, 70.3% female). 39.0% (N=234) of 600 patients were being treated with T2T approach, and 64.9% (N=366) of 564 patients had achieved T2T goal. Patients with longer disease duration (>2 years diagnosis) (odds ratio (OR) [95%CI]=1.61 [1.05, 2.49], vs. diagnosis ≤2 years), higher pain score (OR [95%CI]=1.26 [1.04, 1.51]), or receiving advanced therapy (OR [95%CI]=6.91 [3.64, 13.13]) were more likely to use T2T. Patients with BMI >23.9kg/m2 (OR [95%CI]=2.83 [1.59, 5.04], vs. BMI≤23.9kg/m2), or who worked full-time (OR [95%CI]=2.12 [1.26, 3.57]) were more likely to achieve T2T goal, while patients with more pain (OR [95%CI]=0.77 [0.64, 0.92]) were less likely to achieve T2T goal.Conclusion:Low implementation of T2T approach is observed in Chinese RA treatment. Longer disease duration, more pain, and receiving advanced therapy are associated with higher probability of T2T use, while higher BMI, full-time work and less pain are associated with higher probability of T2T goal achievement. Standard diagnosis and treatment according to guidelines may improve T2T approach implementation.References:[1]Association, C.R., 2018 Chinese guideline for the diagnosis and treatment of rheumatoid arthritis. Zhonghua nei ke za zhi, 2018. 57(4): p. 242.Disclosure of Interests:Jiu-liang Zhao: None declared, Xin Liu Employee of: Eli Lilly and Company, Lujing Zhan Employee of: Eli Lilly and Company, Hongyu Tang Employee of: Eli Lilly and Company (Intern), Jinnan Li Employee of: Eli Lilly and Company, Mengru Liu Employee of: Eli Lilly and Company, Elizabeth Holdsworth Consultant of: Eli Lilly and Company, Employee of: Adelphi Real World, Yan Zhao: None declared
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Zhu K, Gu W, Wang L, Wang J, Tang H, Shen H, Jiang K, Shu Q. A 6-Year-Old Boy With a Mediastinal Mass. Chest 2021; 158:e317-e321. [PMID: 33280776 DOI: 10.1016/j.chest.2020.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 06/10/2020] [Accepted: 07/04/2020] [Indexed: 11/16/2022] Open
Abstract
CASE PRESENTATION A 6-year-old boy was referred to our hospital with an anterior mediastinal mass. This was discovered by chest radiography performed when the boy was examined after being caught by an elevator door about 2 weeks earlier. The patient had been born full term without any complications during pregnancy or delivery. No clinical symptoms were observed during this presentation, and he had no history of previous infections.
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Affiliation(s)
- Kun Zhu
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Weizhong Gu
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Larry Wang
- Department of Pathology and Laboratory Medicine, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Jinhu Wang
- Department of Surgical Oncology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Hongfeng Tang
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Hongqiang Shen
- Clinical Laboratory Department, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Kewen Jiang
- Biobank Department, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Qiang Shu
- Department of Thoracic and Cardiovascular Surgery, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China.
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Han N, Yan LL, Du LY, Huang FJ, Tang H. [Role of the liver-enriched transcription factor binding site mutation in the C promoter region of hepatitis B virus genome for HBx-enhanced hepatitis B virus replication]. Zhonghua Gan Zang Bing Za Zhi 2021; 29:350-355. [PMID: 33979962 DOI: 10.3760/cma.j.cn501113-20200923-00523] [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: 02/05/2023]
Abstract
Objective: To construct a recombinant HBV replication-type plasmid with liver-enriched transcription factor binding site mutation at proximal of HBV C promoter in order to elucidate the role of HBx-enhanced HBV replication. Methods: Site-directed mutagenesis technology was used to construct a recombinant plasmid with liver-enriched transcription factor binding site mutation at proximal of HBV C promoter on the basis of wild-type HBV replicating plasmid and HBV replicating plasmid lacking HBx expression. Subsequently, plasmid transfection was carried out in HBV liver cancer cell replication model and mouse replication model, and HBV replication intermediates of cells and mouse liver tissue were extracted for detection. Results: Based on the HBV replicating plasmid, the HBV replicating plasmid with liver-enriched transcription factor binding site mutation at proximal of HBV C promoter was successfully constructed. HBx-enhanced HBV replication were detected in both the HBV liver cancer replication model and the mouse replication model. After mutating liver-enriched transcription factor binding site mutation at proximal of HBV C promoter, the effect of HBx on the enhancement of HBV replication was not significantly affected. Conclusion: HBx may not enhance HBV replication through liver-enriched transcription factor binding site mutation at proximal of HBV C promoter. The role of other liver-enriched transcription factor binding sites in HBx-enhanced HBV replication needs further study.
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Affiliation(s)
- N Han
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - L L Yan
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - L Y Du
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - F J Huang
- West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu 610041, China
| | - H Tang
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
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Tang H, Tan B, Zhou WX, Qian JM. [Adult Hirschsprung's allied disease presented with colonic ulcer accompanied Clostridium difficile infection]. Zhonghua Nei Ke Za Zhi 2021; 60:469-472. [PMID: 33906278 DOI: 10.3760/cma.j.cn112138-20200826-00776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H Tang
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - B Tan
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - W X Zhou
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - J M Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
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Fang Y, Zhang S, Yin J, Shen YX, Wang H, Chen XS, Tang H. LINC01535 promotes proliferation and inhibits apoptosis in esophageal squamous cell cancer by activating the JAK/STAT3 pathway. Eur Rev Med Pharmacol Sci 2021; 24:3694-3700. [PMID: 32329845 DOI: 10.26355/eurrev_202004_20832] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To detect the expression of long intergenic non-coding ribonucleic acid (LINC) 01535 in esophageal squamous cell cancer (ESCC) tissues and cells, and to investigate the influences of LINC01535 on the proliferation and apoptosis of ESCC cells and the possible mechanism. PATIENTS AND METHODS Quantitative real-time polymerase chain reaction (qRT-PCR) was performed to determine the relative expression of LINC01535 in 43 cases of ESCC tissues and human esophageal cancer cells (KYSE30, EC9706, TE-13, and Ecal09) compared with human esophageal mucosal epithelial cells (HET-1A). The esophageal cancer cells with the highest expression were selected and transfected with small interfering RNA (si)-LINC01535 (experimental group) or si-negative control (NC) (control group). The interference efficiency was measured via qRT-PCR assay. Regulatory effects of LINC01535 on cell proliferative capacity was examined through colony formation assay and cell proliferation assay [Cell Counting Kit-8 (CCK-8)]. Cell cycle and apoptosis influenced by LINC01535 were detected via flow cytometry. Western blotting was applied to determine the expression changes in the molecular markers of the Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3) signaling pathway. RESULTS LINC01535 expression in ESCC tissues and cells was remarkably higher than that in para-carcinoma tissues and esophageal mucosal epithelial cells. Knockdown of LINC01535 decreased proliferative capacity, arrested cell cycle in G1/G0 phase, and increased apoptotic rate of ESCC cells. The expressions of the molecular markers of the JAK/STAT3 signaling pathway were altered after knockdown of LINC01535. The above results illustrated that LINC01535 accelerated the proliferation but repressed the apoptosis of ESCC cells by regulating the JAK/STAT3 signaling pathway. CONCLUSIONS The expression of LINC01535 is up-regulated in ESCC tissues and cells, and the highly expressed LINC01535 promotes the proliferation and inhibits the apoptosis of ESCC cells by regulating the JAK/STAT3 signaling pathway. Our findings provide new directions for the diagnosis and treatment of esophageal cancer.
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Affiliation(s)
- Y Fang
- Department of Thoracic Surgery, Zhongshan Hospital, Fudan University, Shanghai, China.
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Tang H, Wu R, Zhu YW, Liu WH, Lu ZH. [Application progress of tissue in situ specific staining combined with mass spectrometry in the identification of amyloidosis and precise typing of deposited proteins]. Zhonghua Bing Li Xue Za Zhi 2021; 50:293-296. [PMID: 33677904 DOI: 10.3760/cma.j.cn112151-20200524-00409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H Tang
- Department of Pathology, the Affiliated WuXi Second People's Hospital of Nanjing Medical, Wuxi 214002, China
| | - R Wu
- Department of Pathology, Peking University Third Hospital, Beijing 100191, China
| | - Y W Zhu
- Department of Gastroenterology, the Affiliated WuXi Second People's Hospital of Nanjing Medical, Wuxi 214002, China
| | - W H Liu
- Department of Ophthalmology, the Affiliated WuXi Second People's Hospital of Nanjing Medical, Wuxi 214002, China
| | - Z H Lu
- Department of Infections, Wuxi No.5 People's Hospital, Wuxi 214011, China
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He YX, Li G, Liu Y, Tang H, Chong ZY, Wu XJ, Jin X, Zhang SY, Wang M. Endovascular treatment of visceral aneurysms and pseudoaneurysms. J BIOL REG HOMEOS AG 2021; 35:131-140. [PMID: 33567807 DOI: 10.23812/20-377-a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Visceral artery aneurysm (VAA) is a rare and potentially life-threatening condition, defined as true artery aneurysms and pseudoaneurysms of splanchnic circulation and renal artery. This study reports our experience in the diagnosis and endovascular treatment of visceral artery aneurysms (VAAs) over a 10-year period. Between 2008 and 2018, a total of 24 VAAs in 21 patients were diagnosed by clinical symptoms and a combination of imaging techniques, such as Doppler ultrasound, computed tomography angiogram, and catheter angiogram. All patients underwent endovascular treatment to exclude aneurysms. Oral antiplatelet medicine was administered, and imaging examination was performed during follow-up. Technical success was achieved in all 21 patients, and no periprocedural complications occurred. Endovascular coiling alone was employed in 10 aneurysms. Coiling was combined with gelfoam in 2 aneurysms. Coiling was assisted by stent in 4 aneurysms. Covered stents were deployed in 8 aneurysms individually. Clinical symptoms disappeared or highly improved in all patients after treatment. None of the patients showed recurrent symptoms after discharge. However, two cases with new aneurysms after 6 and 8 months, respectively, and one case with in-stent thrombosis after 12 months were reported during follow-up. This study may justify the efficacy of percutaneous endovascular coil embolization and stent deployment. It also provides beneficial experience about how to choose appropriate various endovascular strategies based on both clinical symptoms and aneurysm anatomy condition.
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Affiliation(s)
- Y X He
- Department of Vascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - G Li
- Department of Vascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Y Liu
- Department of General Surgery, Qilu Hospital of Shandong University, Jinan, China
| | - H Tang
- Shandong Center for Disease Control and Prevention, Jinan, China
| | - Z Y Chong
- Department of Vascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - X J Wu
- Department of Vascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - X Jin
- Department of Vascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - S Y Zhang
- Department of Vascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - M Wang
- Department of Vascular Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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Li Q, Ho CP, Tang H, Okano M, Ikeda K, Takagi S, Takenaka M. Si racetrack optical modulator based on the III-V/Si hybrid MOS capacitor. Opt Express 2021; 29:6824-6833. [PMID: 33726194 DOI: 10.1364/oe.418108] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 02/11/2021] [Indexed: 06/12/2023]
Abstract
We have fabricated a Si racetrack optical modulator based on a III-V/Si hybrid metal-oxide-semiconductor (MOS) capacitor. The III-V/Si hybrid MOS optical phase shifter was integrated to a Si racetrack resonator with a coupling length of 200 µm and a coupling gap of 700 nm. The fabricated Si racetrack resonator demonstrated a small VπL of 0.059 Vcm. For 10-dB optical intensity modulation, the Si racetrack resonator showed a 60% smaller driving voltage than a Mach-Zehnder interferometer modulator with the same phase shifter, leading to a better balance between high energy efficiency and large modulation bandwidth.
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Liu L, Tang H, Feng LL, Cheng TY. Hemalin from Haemaphysalis flava ticks: cloning, expression and antithrombogenicity. Med Vet Entomol 2021; 35:42-50. [PMID: 32748973 DOI: 10.1111/mve.12467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 06/24/2020] [Accepted: 07/04/2020] [Indexed: 06/11/2023]
Abstract
Hemalin, initially described in Haemaphysalis longicornis, is a protein with anticoagulant activity. We retrieved a gene fragment functionally annotated as hemalin from H. flava salivary gland transcriptomic library, but its full-length complementary DNA (cDNA) and antithrombogenicity have not been investigated in the species. Here we cloned the full length of hemalin (Hf-hemalin) by 3'-end rapid-amplification of cDNA ends, and the open reading frame (ORF) of Hf-hemalin was expressed in Escherichia coli. The recombinant protein (rHf-Hemalin) was tested for antithrombogenicity. The full-length of Hf-hemalin was 607 bp with an ORF of423 bp. Protein encoded by Hf-hemalin was predicted to contain 2 Kunitz domains and a signal peptide. The expression of Hf-hemalin in salivary glands, midguts and ovaries was higher in the semi-engorged than the fully engorged. Prokaryotic expression yielded a product of 40 kDa containing a glutathione S-transferase (GST) tag. Incubation of rHf-Hemalin with rat plasma significantly extended prothrombin time and activated partial thromboplastin time compared with normal saline and GST controls. Our data demonstrated that Hemalin from H. flava shared a similar primary structure with that from H. longicornis, and was also anticoagulant. Further investigations are needed to test its feasibility to be an antigen candidate for the development of vaccines against ticks.
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Affiliation(s)
- L Liu
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Collaborative Innovation Center for Safety Production of Livestock and Poultry, Hunan Agricultural University, Changsha, China
| | - H Tang
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Collaborative Innovation Center for Safety Production of Livestock and Poultry, Hunan Agricultural University, Changsha, China
| | - L-L Feng
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Collaborative Innovation Center for Safety Production of Livestock and Poultry, Hunan Agricultural University, Changsha, China
| | - T-Y Cheng
- College of Veterinary Medicine, Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Hunan Collaborative Innovation Center for Safety Production of Livestock and Poultry, Hunan Agricultural University, Changsha, China
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Tan B, Tang H, Ren XY, Zhou WX, Qian JM, Zhang L, Zhang XT. [Clinical characteristics and microbiome analysis in patients with anti-programmed cell death protein 1 related colitis]. Zhonghua Nei Ke Za Zhi 2021; 59:887-893. [PMID: 33120493 DOI: 10.3760/cma.j.cn112138-20200216-00082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze clinical characteristics and monitor microbiome changes in patients with anti-PD-1 associated colitis. Methods: Two patients with non-small cell lung cancer who developed colitis after treated with anti-PD-1 antibodies were retrospectively analyzed in Peking Union Medical College Hospital from January 2019 to January 2020. The clinical symptoms, endoscopic and pathological manifestations, as well microbiome changes were analyzed and compared during pre-treatment, post-treatment and relapse. Results: The main clinical manifestations included diarrhea, elevated inflammatory indicators, colonic mucosal diffuse hyperemic edema with erosion by endoscopy. Changes in the structure of crypts were common pathological characteristics. Glucocorticoids were effective agents, which achieved clinical remission and mucosal healing. The microbiome composition of OTUs was different. After glucocorticoid treatment, the alpha diversity Observed species, Shannon, Simpson, Chao1, ACE indexes all decreased. The Firmicutes decreased with Bacteroidetes increasing in phylum level; while the Bacteroides increased with Ruminococcaceae decreasing in genus level. Lactobacillus was the potentially beneficial genus. Conclusion: Patients developing anti-PD-1 associated colitis have characteristic clinical and pathological manifestations. Glucocorticoids are effective treatment. The fecal microbiome diversity, relative abundance of major phylum and genus have changed after treatment.
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Affiliation(s)
- B Tan
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - H Tang
- Department of Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - X Y Ren
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - W X Zhou
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - J M Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - L Zhang
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
| | - X T Zhang
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
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Tang H, Tan B, Qian JM. [A case of colonic ulcer caused by non-tuberculous mycobacterium infection]. Zhonghua Nei Ke Za Zhi 2020; 59:815-817. [PMID: 32987487 DOI: 10.3760/cma.j.cn112138-20200131-00045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H Tang
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - B Tan
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - J M Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
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66
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Yang SY, Ren H, Li CF, Tang H. [Screening core genes and cyclin B2 as a potential diagnosis, treatment and prognostic biomarker of hepatocellular carcinoma based on bioinformatics analysis]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:773-783. [PMID: 33053978 DOI: 10.3760/cma.j.cn501113-20200818-00461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To screen out and explore the core gene (Hub gene) involvement and the potential role of cyclin B2 (CCNB2) in the development and prognosis of hepatocellular carcinoma (HCC) through bioinformatics methods. Methods: Four HCC-related datasets were screened, and downloaded from the GEO database. GEO2R tool was used to analyze data and identify the differentially expressed genes (DEGs). Gene Ontology (GO) and KEGG signal pathway enrichment analysis were completed using DAVID database and Cytoscape (ClueGO) plug-in, respectively. Protein-protein interaction network (PPI) of DEGs was established using the STRING database. Cytoscape software was used to visualize PPI network, key modules (cluster) construction and core genes identification. UCSC and UALCAN database were used to analyze the differential expression and survival of TCGA hepatocellular carcinoma core genes. Firebrowse, Oncomine and UALCAN databases were used to analyze the expression of core genes in multiple tumors including HCC. Real-time quantitative reverse transcription PCR (RT-qPCR) was used to detect the expression levels of candidate genes in HCC tissues and liver cancer cell lines. Results: A total of 73 DEGs were identified from the four datasets, including 15 up-regulated genes and 58 down-regulated genes. KEGG pathway enrichment analysis signal showed that DEGs were mainly enriched in tumor-related pathways. PPI network based on DEGs had screened the key modules and 10 core genes. CCNB2 and NCAPG were highly expressed in liver cancer tissues in multiple databases. CCNB2 was positively correlated with NCAPG and was considered as a key gene related to prognosis (P < 0.01). RT-qPCR results showed that CCNB2 was highly expressed in human HCC tissues and cell lines (P < 0.01). Conclusion: Successfully screened DEGs and core genes related to HCC. Among them, CCNB2 is highly expressed in HCC and is related to the survival and prognosis of patients, so it is expected to become a biomarker for the diagnosis and prognosis of HCC.
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Affiliation(s)
- S Y Yang
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - H Ren
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - C F Li
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - H Tang
- Department of Infectious Diseases, Institute for Viral Hepatitis, The Key Laboratory of Molecular Biology for Infectious Diseases, Chinese Ministry of Education, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
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Tang H, Russell BK, Maksimchuk A, Campbell PT, Manuel MJE, Willingale L. Scintillator detector characterization for laser-driven proton beam imaging. Rev Sci Instrum 2020; 91:123304. [PMID: 33380001 DOI: 10.1063/5.0022166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/05/2020] [Indexed: 06/12/2023]
Abstract
The spatial resolution and imaging characteristics of plastic scintillators are characterized using laser-driven proton beams. Laser-driven proton beams typically have broad energy spectra and are accompanied by relativistic electrons and high-energy photons, both potentially contributing to background noise. Different types and thicknesses of Eljen Technology scintillators are compared to determine their intrinsic point spread function. Point-projection imaging of a mesh is used to compare the imaging resolution of the scintillator to the usual imaging detector, radiochromic film, and is found to be reasonably comparable and sufficient for many experimental applications.
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Affiliation(s)
- H Tang
- Gerard Mourou Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109, USA
| | - B K Russell
- Gerard Mourou Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109, USA
| | - A Maksimchuk
- Gerard Mourou Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109, USA
| | - P T Campbell
- Gerard Mourou Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109, USA
| | - M J-E Manuel
- General Atomics, San Diego, California 92121, USA
| | - L Willingale
- Gerard Mourou Center for Ultrafast Optical Science, University of Michigan, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109, USA
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Tan B, Tang H, Xu Y, Chen MJ, Wang MZ, Qian JM. [Protective effect and mechanism of Lactobacillus rhamnosus on immune checkpoint inhibitors related colitis in mice]. Zhonghua Yi Xue Za Zhi 2020; 100:3332-3337. [PMID: 33202497 DOI: 10.3760/cma.j.cn112137-20200520-01598] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Modeling the immune-related adverse events (irAE) colitis in mice, and explore the protective effect and related mechanism of Lactobacillus rhamnosus GG (LGG) on irAE colitis. Methods: C57BL/6 mice were divided into dextran sodium sulfate (DSS) group (n=3), DSS+anti-programmed death receptor 1 (PD-1) group (n=4), DSS+anti-PD-1+anti-cytotoxic T lymphocyte associated protein 4 (CTLA-4) Group (n=4), DSS+anti-PD-1+anti-CTLA-4+LGG group (n=4), all were given corresponding drugs and probiotics intervention. The severity of colitis were assessed by weight loss, disease activity index (DAI), colon length, colon histopathological score. The inflammatory cytokines and T cell immunity of CD4+, CD8+, FoxP3+regulatory T cells (Treg), were detected by real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and immunohistochemical staining respectively. Results: Compared to DSS group, the Day 9 weight [(87.40±1.79)% vs (94.57±0.53)%, P<0.05], colon length [(5.33±0.27)cm vs (6.63±0.12)cm, P<0.05] were lower, and DAI score(2.66±0.24 vs 0.89±0.48), colon histopathological score (12.50±1.04 vs 5.67±0.33), tumor necrosis factor-α (TNF-α) (6.73±1.68 vs 0.91±0.40) (P<0.05), as well CD8+T cells (156.80±8.84 vs 89.00±6.66) and FoxP3+Treg cells (103.80±2.66 vs 48.33±3.18) (P<0.05) were higher in DSS+anti-PD-1+anti-CTLA-4 group. Compared to DSS+anti-PD-1+anti-CTLA-4 group, the DAI score(1.83±0.17 vs 2.66±0.24), colonic histopathology score (8.75±0.63 vs 12.50±1.04), TNF-α level (1.32±0.18 vs 6.73±1.68) (P<0.05) were lower; and CD8+T cells(97.75±3.75 vs 156.80±8.84, P<0.01) level was lower with higher FoxP3+Treg cells (126.00±8.33 vs 103.80±2.66, P=0.046) in DSS+anti-PD-1+anti-CTLA-4+LGG group. Conclusion: DSS combined with anti-PD-1 and anti-CTLA-4 can successfully modeling the irAE colitis in mice, LGG can reduce irAE colitis severity by regulating Treg cells.
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Affiliation(s)
- B Tan
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - H Tang
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - Y Xu
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - M J Chen
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - M Z Wang
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
| | - J M Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100730, China
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Zeng C, Tang H, Chen H, Li M, Xiong D. Ferroptosis: a new approach for immunotherapy. Cell Death Discov 2020; 6:122. [PMID: 33298853 PMCID: PMC7665172 DOI: 10.1038/s41420-020-00355-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/13/2020] [Accepted: 10/14/2020] [Indexed: 01/13/2023] Open
Affiliation(s)
- Chong Zeng
- Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Jiazi Road No.1, Lunjiao Street., Foshan, 528308, Guangdong, China.
| | - Hongfeng Tang
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Jiazi Road No.1, Lunjiao Street., Foshan, 528308, Guangdong, China
| | - Hanwen Chen
- Department of Anesthesiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Jiazi Road No.1, Lunjiao Street., Foshan, 528308, Guangdong, China
| | - Mojuan Li
- Department of Obstetrics and Gynecology, Nanhai Hospital Affiliated to Southern Medical University, Foping Road No.40., Foshan, 528200, Guangdong, China
| | - Dan Xiong
- Departments of Hematology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), Jiazi Road No.1, Lunjiao Street., Foshan, 528308, Guangdong, China.
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Yuan S, Chen T, Li DZ, Huang YD, Tang H, Ji P. [Assessment of the clinical effect regarding three-dimensional printing individualized titanium mesh for bone augmentation in the esthetic area]. Zhonghua Kou Qiang Yi Xue Za Zhi 2020; 55:878-884. [PMID: 33171562 DOI: 10.3760/cma.j.cn112144-20200702-00393] [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 evaluate the clinical effect of three-dimensional (3D) printing individualized titanium mesh for ridge augmentation in the esthetic zone. Methods: Forty-three patients were treated with personalized titanium mesh bone augmentation from Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University from January, 2018 to June, 2020. According to the preoperative cone-beam CT (CBCT) data, the 43 patients [male: 21, female: 22, aged (30.1±5.8) years] were divided into three groups according to the Seibert classification as horizontal, vertical and horizontal-vertical classes (sample size: 14, 15, 14). Then, comprehensively the bone mass and esthetic requirements were taken into account to design and accordingly fabricate the 3D printing individualized titanium mesh. During the surgical process, autologous bone and xenogeneic bone substitutes were mixed at a 1∶1 ratio, combined with injectable platelet-rich fibrin (i-PRF) and individualized titanium mesh for ridge augmentation. All patients were recalled at 1, 3, and 6 months post-operation to observe the mesh exposure; the clinical effect of ridge augmentation was evaluated 6 months post-operation. After the implant placement and final restoration, the pink esthetic score (PES)/white esthetic score (WES) were evaluated. Results: Only one patient experienced early mesh exposure, and no obvious infection was observed. The bone gain regarding three types of bone defects was significantly higher immediately post-operation compared to pre-operation (horizontal, vertical and horizontal-vertical bone defect measured as (3.27±0.13), (17.41±0.46), (3.76±0.24), (14.37±0.89) mm pre-operation, respectively; and (5.25±0.15), (26.10±0.55), (6.35±0.29), (22.52±0.90) mm immediately post-operation, P<0.01). There was no obvious bone resorption 6 months post-operation [outcomes for horizontal, vertical and horizontal-vertical bone defect measured as (5.14±0.14), (25.67±0.52), (6.13±0.26), (22.35±0.89) mm, P>0.05]. The PES/WES scores of all patients were interpreted as "excellent". Conclusions: The 3D printing individualized titanium mesh is effective in repairing bone defects in the esthetic zone, and produces credible esthetic outcomes after implantation and final restoration.
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Affiliation(s)
- S Yuan
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| | - T Chen
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| | - D Z Li
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| | - Y D Huang
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| | - H Tang
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
| | - P Ji
- Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University & Chongqing Key Laboratory of Oral Diseases and Biomedical Sciences & Chongqing Municipal Key Laboratory of Oral Biomedical Engineering of Higher Education, Chongqing 401120, China
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Zhao K, Zhu H, Campo ERD, Yun C, Ye J, Zhu Z, Zhao W, Zhou J, Wu C, Tang H, Min F, Li L, Lin Q, Xia Y, Li J. OC-0693: Involved-Field Irradiation in Definitive Chemoradiotherapy for Loco-Regional Esophageal Cancer. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00715-5] [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: 11/30/2022]
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Ye L, Zhang Y, Tang H, Yao J, Wang G, Yang Y, Chen G. Prediction of chronic kidney disease progression used by calcineurin inhibitor concentration and estimated glomerular filtration rate early after liver transplantation. Niger J Clin Pract 2020; 23:1387-1394. [PMID: 33047695 DOI: 10.4103/njcp.njcp_91_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Background Chronic kidney disease (CKD) is a common late complication in liver-transplanted patients who have received long-term therapy with calcineurin inhibitors (CNIs). Aims: To analyze kidney disease progression after liver transplantation. Methods We analysed the clinical data of adult single-organ liver transplant recipients performed at our centre between October 2003 and September 2009. The patients with the estimated glomerular filtration rate (eGFR) greater than 60 ml/min/1.73 m2 before surgery were included in the study. Results 69 patients with complete follow-up data were analysed. We found that eGFR at 1 or 2 years after liver transplantation correlated well with eGFR at 5 years. In addition, our results showed that patients whose eGFR declined below 60 at 2 years after liver transplantation would develop an irreversible renal injury in the following years. At 2 years, 12 patients had an eGFR less than 60, which were maintained in 11 patients at 5 years (Sensitivity = 11/12, 91.67%; Specificity = 57/58, 98.28%, Youden's index = 89.95%). The annual rate of eGFR reduction of the tacrolimus group was greater than that of the tacrolimus sparing group based on the value-time variation curve in our study. Moreover, the tacrolimus concentration influenced the CKD progression at 1 and 2 years with an under the ROC curve of 0.73 and 0.78 when Youden's index was at its maximum and the tacrolimus concentrations were 8.55 and 5.96 ng/ml, respectively. Conclusion We confirmed that eGFR at 2 years after liver transplantation is useful for observing a meaningful change in eGFR and renal damage. Obtaining the appropriate serum concentration of an early decrease of the dose of CNIs and transforming non-nephrotoxic immunosuppressants would help improve renal function to prevent CKD progression and end-stage renal disease (ESRD).
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Affiliation(s)
- L Ye
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Y Zhang
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - H Tang
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - J Yao
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - G Wang
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Y Yang
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - G Chen
- Department of Hepatic Surgery and Liver Transplantation Center, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Manuel MJE, Tang H, Russell BK, Willingale L, Maksimchuk A, Green JS, Alfonso EL, Jaquez J, Carlson L, Neely D, Ma T. Enhanced spatial resolution of Eljen-204 plastic scintillators for use in rep-rated proton diagnostics. Rev Sci Instrum 2020; 91:103301. [PMID: 33138566 DOI: 10.1063/5.0014949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
A pixelated scintillator has been designed, fabricated, and tested using a laser-accelerated proton source for use in proton diagnostics at rep-rated laser facilities. The work presented here demonstrates the enhanced spatial resolution of thin, organic scintillators through a novel pixelation technique. Experimental measurements using laser-generated protons incident onto 130 μm-thick scintillators indicate a >20% reduction in the scintillator point spread function (PSF) for the detectors tested. The best performing pixelated detector reduced the ∼200 μm PSF of the stock material to ∼150 μm. The fabrication technique may be tailored to reduce the pixel size and achieve higher spatial resolutions.
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Affiliation(s)
- M J-E Manuel
- General Atomics, San Diego, California 92121, USA
| | - H Tang
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - B K Russell
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - L Willingale
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - A Maksimchuk
- Center for Ultrafast Optical Science, University of Michigan, Ann Arbor, Michigan 48109, USA
| | - J S Green
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, United Kingdom
| | - E L Alfonso
- General Atomics, San Diego, California 92121, USA
| | - J Jaquez
- General Atomics, San Diego, California 92121, USA
| | - L Carlson
- General Atomics, San Diego, California 92121, USA
| | - D Neely
- Central Laser Facility, STFC, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, United Kingdom
| | - T Ma
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
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Zhao M, Yin M, Kuick CH, Chen H, Aw SJ, Merchant K, Ng EHQ, Gunaratne S, Loh AHP, Gu W, Tang H, Chang KTE. Congenital mesoblastic nephroma is characterised by kinase mutations including EGFR internal tandem duplications, the ETV6-NTRK3 fusion, and the rare KLHL7-BRAF fusion. Histopathology 2020; 77:611-621. [PMID: 32590884 DOI: 10.1111/his.14194] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 06/05/2020] [Accepted: 06/19/2020] [Indexed: 12/29/2022]
Abstract
AIMS Congenital mesoblastic nephroma (CMN) is histologically classified into classic, cellular and mixed subtypes. The aims of this study were to characterise the clinical, pathological and molecular features of a series of CMNs, and to determine the utility of pan-Trk and epidermal growth factor receptor (EGFR) immunohistochemistry as surrogate markers for NTRK gene fusions and EGFR internal tandem duplications (ITDs). METHODS AND RESULTS Twenty-two archival CMN cases (12 classic, five cellular, and five mixed) were tested for the ETV6-NTRK3 fusion and EGFR ITD transcripts by the use of reverse transcriptase polymerase chain reaction (PCR), and next-generation sequencing-based anchored multiplex PCR. All 12 classic CMNs had EGFR ITD. Of the five cellular CMNs, four had the ETV6-NTRK3 fusion and one had the KLHL7-BRAF fusion. Of the five mixed CMNs, four had EGFR ITD, and one had the ETV6-NTRK3 fusion. Pan-Trk immunoreactivity was 100% sensitive and 94.1% specific for the presence of NTRK rearrangement. However, EGFR staining was only 62.5% sensitive and 33.3% specific for EGFR ITD. CONCLUSIONS EGFR ITD is a consistent genetic event in classic CMN. A majority of cellular CMNs have the ETV6-NTRK3 fusion. Rare cellular CMNs may harbour non-canonical mutations such as the KLHL7-BRAF fusion, which was found in one case. Mixed CMNs may have either EGFR ITD or the ETV6-NTRK3 fusion. Pan-Trk immunohistochemistry is a sensitive, albeit not perfectly specific, marker for NTRK rearrangement. EGFR immunohistochemistry is not helpful as a marker of EGFR ITD.
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Affiliation(s)
- Manli Zhao
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province, China
| | - Minzhi Yin
- Department of Pathology, Shanghai Children's Medical Centre, Shanghai, China
| | - Chik Hong Kuick
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore
| | - Huiyi Chen
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore
| | - Sze Jet Aw
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore
| | - Khurshid Merchant
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore
| | - Eileen Hui Qi Ng
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore
| | | | - Amos Hong Pheng Loh
- Department of Paediatric Surgery, KK Women's and Children's Hospital.,Duke-NUS Medical School, Singapore
| | - Weizhong Gu
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province, China
| | - Hongfeng Tang
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang Province, China
| | - Kenneth Tou En Chang
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore.,Duke-NUS Medical School, Singapore
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Zhang Z, Chang Y, Tang H, Zhao H, Chen X, Tian G, Liu G, Cai J, Jia G. Bio-detoxification of Jatropha curcas L. cake by a soil-borne Mucor circinelloides strain using a zebrafish survival model and solid-state fermentation. J Appl Microbiol 2020; 130:852-864. [PMID: 32816375 DOI: 10.1111/jam.14825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/27/2020] [Accepted: 08/13/2020] [Indexed: 01/21/2023]
Abstract
AIMS The aims of the study were to (i) improve the evaluation criteria of detoxifying Jatropha curcas L. cake (JCC), (ii) isolate and characterize a JCC tolerant strain, (iii) explore its JCC detoxifying potential. METHODS AND RESULTS The zebrafish was employed as a survival model to screen the strains capable of detoxifying JCC. A strain identified as Mucor circinelloides SCYA25, which is highly capable of degrading all toxic components, was isolated from soil. Different solid-state fermentation parameters were optimized by response surface methodology. The optimal values for inoculation amount, moisture content, temperature, and time were found to be 18% (1·8 × 106 spores g-1 cake), 66%, 26, and 36 days, respectively, to achieve maximum detoxification of the JCC (92%). Under optimal fermentation conditions, the protein content of JCC was increased, while the concentrations of ether extract, crude fiber, toxins, and anti-nutritional substances were all degraded considerably (P < 0·05). Scanning electron microscopy and Fourier transform infrared spectrometer analysis revealed that the fermentation process could disrupt the surface structure and improve the ratio of α-helix to β-folding in the JCC protein, which may improve the digestibility when the detoxified JCC is used as a feedstuff. CONCLUSIONS Our results indicate that M. circinelloides SCYA25 is able to detoxify JCC and improve its nutritional profile, which is beneficial to the safe utilization of JCC as a protein feedstuff. SIGNIFICANCE AND IMPACT OF THE STUDY The newly identified M. circinelloides SCYA25 detoxified JCC in a safe manner to provide a potential alternative to soybean meal for the feed industry. These results also provide a new perspective and method for the toxicity evaluation and utilization of JCC and similar toxic agricultural by-products.
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Affiliation(s)
- Z Zhang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China.,Institute of Animal Husbandry and Veterinary Medicine, Meishan Vocational Technical College, Meishan, China
| | - Y Chang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - H Tang
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - H Zhao
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - X Chen
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - G Tian
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - G Liu
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - J Cai
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
| | - G Jia
- Animal Nutrition Institute, Sichuan Agricultural University, Chengdu, China
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76
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Tang H, Zhu YW, Lu ZH. [Analytical value of histological research and application of RNAscope technology in liver diseases]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:365-368. [PMID: 32403892 DOI: 10.3760/cma.j.cn501113-20191107-00409] [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
RNAscope is a new generation of in situ hybridization technology and with the advantage of new probe design, it is now being gradually applied to a wide range of research fields, and its research scope is constantly expanding. Our country has large number of liver disease patients, so there is a great demand for histological testing and research evaluation based upon biological information. This technology has unique specificity and sensitivity in situ level, which makes up for the technical defects of immunohistochemistry and traditional in situ hybridization. Realizing the multiplicity and monomolecular level detection, the qualitative and quantitative analysis of nucleic acid level can be carried out in many aspects of the field of liver disease, and the visual evaluation can be achieved by combining it with tissue in situ to highlight the value of "gold standard". This article summarizes the recent year's application of RNAscope technology carried out in liver histology field.
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Affiliation(s)
- H Tang
- Department of Pathology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Y W Zhu
- Department of Gastroenterology, The Affiliated Wuxi No.2 People's Hospital of Nanjing Medical University, Wuxi 214002, China
| | - Z H Lu
- Department of Hepatology, The Affiliated Wuxi No.5 People's Hospital of Nanjing Medical University, Wuxi 214016, China
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77
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Ma YJ, Bai L, Tang H. [Research progress of the application of regional citrate anticoagulation in artificial liver to treat liver failure]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:532-535. [PMID: 32660187 DOI: 10.3760/cma.j.cn501113-20200509-00238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Liver failure is a rapidly progressive condition with a high mortality rate. Artificial liver treatment is one of the most important treatments for liver failure. In order to ensure the smooth functioning of in vitro circulation device, anticoagulants such as heparin or low-molecular-weight heparin are often used in clinical practice. However, it induces hemorrhage, thrombocytopenia and other adverse reactions, thereby threatening the life safety of liver failure patients. Regional citrate anticoagulation does not affect the coagulation mechanism in vivo, nor does it effects platelets, so in vitro circulating anticoagulants has become the first choice anticoagulant treatment method for continuous renal replacement therapy. Combined with the current research condition at home and abroad, the research progress of the application of regional citrate anticoagulation in artificial liver to treat liver failure is discussed, covering its principle content, application status and application prospect.
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Affiliation(s)
- Y J Ma
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - L Bai
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
| | - H Tang
- Center of Infectious Diseases, West China Hospital of Sichuan University, Chengdu 610041, China
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Wei H, Yin X, Tang H, Gao Y, Liu B, Wu Q, Tian Q, Hao Y, Bi H, Guo D. Hypomethylation of Notch1 DNA is associated with the occurrence of uveitis. Clin Exp Immunol 2020; 201:317-327. [PMID: 32479651 DOI: 10.1111/cei.13471] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 04/24/2020] [Accepted: 05/20/2020] [Indexed: 11/28/2022] Open
Abstract
Uveitis is a serious intra-ocular inflammatory disease that can lead to visual impairment even blindness worldwide. Notch signaling can regulate the differentiation of naive CD4+ T cells, influencing the development of uveitis. DNA methylation is closely related to the autoimmune diseases. In this study, we measured the Notch1 DNA methylation level, determined the Notch1 and related DNA methylases mRNA expression and evaluated the ratio of T helper type 17 regulatory T cell (Th17/Treg ) in peripheral blood mononuclear cells (PBMCs) from uveitis patients and normal control subjects; we also tested the levels of relevant inflammatory cytokines in serum from the participants. Results indicated that compared with those in normal control individuals, the expression of ten-eleven translocation 2 (TET2) and Notch1 mRNA is elevated in uveitis patients, whereas the methylation level in Notch1 DNA promotor region [-842 ~ -646 base pairs (bp)] is down-regulated, and is unrelated to anatomical location. Moreover, the Th17/Treg ratio is up-regulated in PBMCs from uveitis patients, accompanied by the elevated levels of proinflammatory cytokines [e.g. interleukin (IL)-2, IL-6, IL-17 and interferon (IFN)-γ] in serum from uveitis patients. These findings suggest that the over-expression of TET2 DNA demethylase may lead to hypomethylation of Notch1, activate the Notch1 signaling, induce naive CD4+ T cells to differentiate theTh17 subset and thus disturb the balance of the Th17/Treg ratio in uveitis patients. Overall, hypomethylation of Notch1 DNA is closely associated with the occurrence of uveitis. Our study preliminarily reveals the underlying mechanism for the occurrence of uveitis related to the hypomethylation of Notch1 DNA, providing a novel therapeutic strategy against uveitis in clinical practice.
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Affiliation(s)
- H Wei
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - X Yin
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - H Tang
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Y Gao
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Shandong, Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities, Shandong, Eye Institute of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - B Liu
- Department of Blood Transfusion, Linyi People's Hospital, Linyi, China
| | - Q Wu
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Q Tian
- Affiliated Eye Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Y Hao
- Shandong University of Traditional Chinese Medicine, Jinan, China
| | - H Bi
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Shandong, Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities, Shandong, Eye Institute of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - D Guo
- Shandong Provincial Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases, Shandong, Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Therapy of Ocular Diseases in Universities, Shandong, Eye Institute of Shandong University of Traditional Chinese Medicine, Jinan, China
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Auer R, Förster B, Tang H, Randazzo M, Zwahlen D, John H. Long-term urinary side effects of salvage radiotherapy. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)34046-5] [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: 10/23/2022] Open
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80
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Tang H, Nolte S, Jensen K, Yang Z, Wu J, Mueller P. Grazing mediates soil microbial activity and litter decomposition in salt marshes. Sci Total Environ 2020; 720:137559. [PMID: 32325578 DOI: 10.1016/j.scitotenv.2020.137559] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 11/29/2019] [Revised: 02/11/2020] [Accepted: 02/24/2020] [Indexed: 06/11/2023]
Abstract
Salt marshes contribute to climate change mitigation because of their great capacity to store organic matter (OM) in soils. Most of the research regarding OM turnover in salt marshes in times of global change focuses on effects of rising temperature and accelerated sea-level rise, while effects of land-use change have gained little attention. The present work investigates the mechanisms by which livestock grazing can affect OM decomposition in salt marsh soils. In a grazing exclusion experiment at the mouth of the Yangtze estuary, China, we assessed soil microbial exo-enzyme activity (EEA) to gain insight into the microbial carbon (C) and nitrogen (N) demand. Additionally, we studied the decomposition of plant litter in soil using the Tea Bag Index (TBI), a widely used standardized litter bag assay to fingerprint soil decomposition dynamics. Based on EEAs, grazing markedly reduced microbial C acquisition, whereas microbial N acquisition was strongly increased. These opposing grazing effects were also evident in the decomposition of standardized plant litter: The decomposition rate constant (k) and the stabilization (S) of litter were not inversely related, as would be expected, but instead both were reduced by livestock grazing. Our data suggest that gazing effects on EEAs and litter decomposition can just partly be explained by grazing-driven soil compaction and resulting lower oxygen availability, which has previously been hypothesized as a main pathway by which grazing can reduce microbial activity in wetland soils. Instead, grazing effects on microbial nutrient demand occurs to be an at least equally important control on soil decomposition processes.
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Affiliation(s)
- H Tang
- Plant Ecology, Institute of Plant Science and Microbiology, Universität Hamburg, Ohnhorststr. 18, 22609 Hamburg, Germany
| | - S Nolte
- Plant Ecology, Institute of Plant Science and Microbiology, Universität Hamburg, Ohnhorststr. 18, 22609 Hamburg, Germany; School of Environmental Sciences, University of East Anglia, Norwich Research Park, NR4 7TJ Norwich, UK; Centre for Environment, Fisheries and Aquaculture Science, Pakefield Rd, Lowestoft, UK
| | - K Jensen
- Plant Ecology, Institute of Plant Science and Microbiology, Universität Hamburg, Ohnhorststr. 18, 22609 Hamburg, Germany
| | - Z Yang
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Coastal Ecosystems Research Station of Yangtze River Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, 200433 Shanghai, PR China; Liupanshui Normal University, 553000 Liupanshui, PR China
| | - J Wu
- Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, Coastal Ecosystems Research Station of Yangtze River Estuary, Institute of Biodiversity Science and Institute of Eco-Chongming, School of Life Sciences, Fudan University, 200433 Shanghai, PR China
| | - P Mueller
- Smithsonian Environmental Research Center, Contees Wharf Rd 647, MD 21037, Edgewater, United States.
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Yang H, Tang H, Zhang P, Fei Y, Chen H, Zhang X, Zhao Y, Zhang F, Zhang W. FRI0508 MALIGNANCY AND IGG4-RELATED DISEASE: THE INCIDENCE, RELATED FACTORS AND PROGNOSIS FROM A PROSPECTIVE COHORT STUDY IN CHINA. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.4001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:The association between IgG4-related disease (IgG4-RD) and malignancies is unclear. No epidemiological data for malignancies in Chinese IgG4-RD patients is available. It is also important to know the risk factors and prognosis for IgG4-RD patients harboring malignancies.Objectives:To investigate the incidence, related factors and prognosis of IgG4-related disease (IgG4-RD) with malignancies in the Chinese cohort.Table 1.Baseline characteristic of IgG4-RD patients with malignancyPatientSexAgeAge at diagnosis of IgG4-RDAge at diagnosis of malignancySerum IgG4(g/L)Organs involvements of IgG4-RD(*Organ with biopsy)Sites of malignancyP1F5958541499Parotid gland*, salivary glandBreast cancerP2M74666810402Pancreas, bile duct, retroperitoneal fibrosis, kidney, prostate, lymph nodesRectal cancerP3M4642402630Lacrimal gland, parotid glandLipoblastomaP4M7068645780Pancreas, bile duct, lung, prostate, lymph nodesThyroid carcinomaP5F62616111600Pancreas, bile duct, salivary gland*, periaortitis, lymph nodes, pituitaryThyroid carcinomaP6M7268683490Pancreas, bile duct, lymph nodesRectal cancerP7M6058582410Pancreas, bile duct, lymph nodesRenal cancerP8M6863683520Pancreas, bile duct, retroperitoneal fibrosis, lung, kidney, artery, lymph nodesRectal cancerP9M36303512400Pancreas, bile ductSkin cancerP10M52495210000Pancreas, parotid gland*, lacrimal gland, lung, prostate, lymph nodesThyroid carcinomaP11F70686917300Parotid gland, lacrimal gland, salivary gland, sinusLung cancerP12M82797958000Pancreas, lacrimal gland*Colon cancerP13F50494514300Uterus*, ovaryOvarian carcinomaP14F52465010000Parotid gland*, lacrimal glandBreast cancerP15F60555712500Pancreas, parotid gland, lacrimal gland, lymph nodes, sinusLymphomaP16M4237407490Lung*, lymph nodesRenal cancerP17M716869415Pancreas*, bile ductProstate cancerTable 2.Related factors for malignancies in patients with IgG4-RDVariablesUnivariate analysisMultivariate analysisUnivariate OR (95%Cl)P-valueMultivariate OR (95%Cl)P-valueHead and Neck involvement0.304 (0.097- 0.952)0.0410.604 (0.152-2.401)0.474Autoimmune pancreatitis5.359 (1.651-17.393)0.0056.230 (1.559-24.907)0.010Eosinophilia0.117 (0.014-0.966)0.0460.094 (0.010-0.883)0.039Figure 1.Standardized incidence ratios of malignancies in patients with IgG4-RD from different studies.Methods:We prospectively analyzed the IgG4-RD patients recruited in Peking Union Medical College Hospital from January 2011 to August 2018 and identified patients diagnosed with IgG4-RD complicating malignancies. Data regarding demographics, clinical features, treatment and prognosis of IgG4-RD patients complicating malignancies were collected and compared to those of age- and sex-matched controls.Results:Among the 587 Chinese patients with IgG4-RD, 17 malignancies were identified. Ten of them developed malignancy after the diagnosis of IgG4-RD, given a standard incidence ratio (SIR) of 2.78 (95%CI 1.33-5.12). Multivariate logistic analysis indicated that autoimmune pancreatitis (OR= 6.230, 95%CI 1.559-24.907, p=0.010) was positively associated with malignancy, whereas eosinophilia (OR= 0.094, 95%CI 0.010-0.883, p=0.039) was negatively related with malignancies. During a median follow-up period of 61.4±26.4 months, all patients with IgG4-RD and malignancies survived.Conclusion:An increased incidence of malignancy was found in Chinese IgG4-RD cohort. Autoimmune pancreatitis is a potential risk factor, whereas eosinophilia is a possible protective factor for complicating malignancies.References:[1] Wallace, Z. S.,et al. Association of IgG4-Related Disease With History of Malignancy. Arthritis Rheumatol 68, 2283–2289 (2016).[2] Hirano, K. et al. Incidence of malignancies in patients with IgG4-related disease. Intern. Med. 53, 171–176 (2014).Disclosure of Interests:None declared
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Zhao M, Yang M, Gu W, Chen X, Chen H, Kuick CH, Chang KTE, Tang H. Glomus Tumor of the Kidney in a Child With Tuberous Sclerosis. Pediatr Dev Pathol 2020; 23:230-234. [PMID: 31594471 DOI: 10.1177/1093526619879601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Primary glomus tumors of the kidney are rare and have never been reported in children under 16 years of age. Tuberous sclerosis complex (TSC) is an extremely variable genetic condition that can affect virtually any organ in the body. Only a single case of glomus tumor associated with TSC was reported in 1964. In this article, we describe the clinical, radiologic, and pathological features of a primary renal glomus tumor in an 8-year-old girl with TSC. This tumor is large, has a deep location, and has infiltrative margins and numerous mitoses. However, there was no disease progression in a 16-month period of follow-up. To our knowledge, this is the second report of primary renal glomus tumor in childhood, the youngest one in the literature.
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Affiliation(s)
- Manli Zhao
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Min Yang
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Weizhong Gu
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Xi Chen
- Central Laboratory, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.,Key Laboratory of Diagnosis and Treatment of Neonatal Diseases of Zhejiang Province, Hangzhou, Zhejiang, China
| | - Huiyi Chen
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Chik Hong Kuick
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore, Singapore
| | - Kenneth Tou En Chang
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore, Singapore.,Duke-NUS Medical School, Singapore, Singapore
| | - Hongfeng Tang
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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83
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Gao SY, Wang MW, Tang H, Zhang S, Qi CB, Wang MX, Chang Q, Yue JQ. [Application of intraoperative rapid immunohistochemistry in diagnosis of difficult cases]. Zhonghua Bing Li Xue Za Zhi 2020; 49:265-268. [PMID: 32187900 DOI: 10.3760/cma.j.issn.0529-5807.2020.03.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S Y Gao
- Department of Pathology, Hubei Cancer Hospital, Wuhan 430079, China
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Chen Y, Liu H, Huang H, Ma Y, Wang R, Hu Y, Zheng X, Chen C, Tang H. Squid Ink Polysaccharides Protect Human Fibroblast Against Oxidative Stress by Regulating NADPH Oxidase and Connexin43. Front Pharmacol 2020; 10:1574. [PMID: 32009967 PMCID: PMC6978904 DOI: 10.3389/fphar.2019.01574] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 12/04/2019] [Indexed: 12/20/2022] Open
Abstract
Oxidation injury to skin is one of the main reasons for skin aging. The aim of the present study was to explore the protective effect of squid ink polysaccharides and its mechanism of action against H2O2-induced dermal fibroblast damage. Our results show that squid ink polysaccharides effectively reduce the fibroblast oxidative damage mediated by the up-regulation of NADPH oxidase and Connexin43. Concurrently, squid ink polysaccharides decrease the ROS induced up-regulation of MMP1 and MMP9 to decrease MMP-mediated skin aging. Therefore, we hypothesize that squid ink polysaccharides play an antioxidant role by inhibiting the expression of NADPH oxidase and connexin43. This provides a new target for the effective clinical prevention and treatment of oxidative skin damage.
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Affiliation(s)
- Ying Chen
- Department of Dermatology, Nanchong Central Hospital, the Second Clinical Medical College of North Sichuan Medical College, Nanchong, China.,Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Huazhong Liu
- College of Chemistry and Environment, Guangdong Ocean University, Zhanjiang, China
| | - Hao Huang
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Yuetang Ma
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Ruihua Wang
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Yong Hu
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Xiufen Zheng
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Chunmei Chen
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Hongfeng Tang
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
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Grob JJ, Weber J, Del Vecchio M, Mandala M, Gogas H, Arance A, Dalle S, Lance Cowey C, Schenker M, Chiarion Sileni V, Marquez-Rodas I, Butler M, Maio M, Middleton M, Tang H, Saci A, de Pril V, Lobo M, Larkin J, Ascierto P. Nivolumab (NIVO) versus ipilimumab (IPI) dans le traitement adjuvant du mélanome réséqué de stade III/IV: résultats d’efficacité à 3 ans et analyse de biomarqueurs issus de l’essai de phase 3 CheckMate 238. Ann Dermatol Venereol 2019. [DOI: 10.1016/j.annder.2019.09.108] [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: 10/25/2022]
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Ma ZK, Tong PY, Yuan C, Tang H, Zhu C, Sun XY, Zheng SG. [Pre- and post-treatment changes of gingvitis-associated peptidomic profiles in the saliva and gingival crevicular fluid by mass spectrometry]. Zhonghua Kou Qiang Yi Xue Za Zhi 2019; 54:745-752. [PMID: 31683381 DOI: 10.3760/cma.j.issn.1002-0098.2019.11.005] [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 explore peptidomic changes of peptides in saliva and gingival crevicular fluid (GCF) before and after treatment of gingivitis. Methods: From January 2017 to September 2017, seventeen participants at the age of 24-62 (6 males and 11 females) at Department of Preventive Dentistry, Peking University School and Hospital of Stomatology with gingivitis were recruited in the present study. Their clinical parameters were measured and recorded. Saliva and GCF samples were collected from each of the participants at the baseline and 7 days after ultrasonic supragingival scaling, respectively. Matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF MS) was employed to detect the changes of peptidomic profiles, while ano-liquid chromatography-electrospray ionization-tandem mass spectrometry (nano-LC/ESI-MS/MS) was performed to identify the possible proteins from which the peptides might derive. Results: Initially, four peptide peaks [mass-to-charge ratio (m/z) values: 1 030.6, 1 043.4, 1 053.4 and 1 064.6] were screened out exhibiting a decreasing trend after treatment (P<0.05). Besides, five peptide peaks from gingival crevicular fluid (P<0.05) exhibited differential expression, among which 1 055.5 and 1 168.3 demonstrating a decrease after treatment, while 3 363.7, 3 480.9 and 3 489.5 increased overtime. Certain positive correlations were detected between some peptides and clinical parameters. Principle component analysis using the above mentioned peptide peaks showed a distinct distribution before and after treatment and peptides from GCF showed a slightly better capacity to discriminate patients before and after treatment. The peptides with m/z values of 1 055.5 in GCF and 1 064.6 in saliva were identified to be segments of serum albumin and complement C3, respectively. Conclusions: Several differentially expressed peptides were detected in saliva and GCF by MALDI-TOF MS, exhibiting the potentiality to act as biomarkers in gingivitis patients.
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Affiliation(s)
- Z K Ma
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - P Y Tong
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - C Yuan
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - H Tang
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - C Zhu
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X Y Sun
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - S G Zheng
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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87
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Tang H, Fu T, Feng Y, Zhang S, Wang C, Zhang D. Effect of heat treatment on solubility, surface hydrophobicity and structure of rice bran albumin and globulin. Quality Assurance and Safety of Crops & Foods 2019. [DOI: 10.3920/qas2018.1402] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- H. Tang
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, China P.R
| | - T. Fu
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, China P.R
| | - Y. Feng
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, China P.R
| | - S. Zhang
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, China P.R
| | - C. Wang
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, China P.R
- Key Laboratory of Agro-Products Processing and Quality Safety of Heilongjiang province, Daqing 163319, China P.R
| | - D. Zhang
- College of Food, Heilongjiang Bayi Agricultural University, Xinfeng Lu 5, Daqing 163319, China P.R
- Key Laboratory of Agro-Products Processing and Quality Safety of Heilongjiang province, Daqing 163319, China P.R
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88
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Guo F, Zhang YGL, Wu D, Qin L, Wang MW, Jin S, Tang H, Feng X, Yue JQ. [The effects of environmental friendly reagents on molecular detection of biopsy specimens processed by ultrasonic tissue processor]. Zhonghua Bing Li Xue Za Zhi 2019; 48:805-808. [PMID: 31594048 DOI: 10.3760/cma.j.issn.0529-5807.2019.10.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- F Guo
- Department of Pathology, Hubei Cancer Hospital, Wuhan 430070, China
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89
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Huang H, Huang M, Lv W, Hu Y, Wang R, Zheng X, Ma Y, Chen C, Tang H. Inhibition of Trichophyton rubrum by 420-nm Intense Pulsed Light: In Vitro Activity and the Role of Nitric Oxide in Fungal Death. Front Pharmacol 2019; 10:1143. [PMID: 31632277 PMCID: PMC6785631 DOI: 10.3389/fphar.2019.01143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 09/04/2019] [Indexed: 01/06/2023] Open
Abstract
Trichophyton rubrum is a common dermatophyte of the skin. The aim of this experiment was to explore the role of nitric oxide (NO) in the inhibition of T. rubrum growth induced by 420-nm intense pulsed light (IPL). This study found that nitric oxide synthase (NOS) and NO levels were increased, whereas asymmetric dimethylarginine (ADMA) level, keratinase activity, and fungal viability were decreased after IPL treatment compared with the control condition in vitro. Moreover, micromorphology was damaged by IPL treatment. Fungal viability was increased, and the damage to the fungal structure was reduced after pretreatment with an NOS inhibitor (L-NMMA) compared with IPL treatment alone. Compared with IPL alone, pretreatment with L-NMMA decreased NOS expression and NO level and increased keratinase activity. We found that 420-nm IPL treatment can inhibit the growth of T. rubrum by regulating NO in vitro.
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Affiliation(s)
- Hao Huang
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Meiling Huang
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Wenyi Lv
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Yong Hu
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Ruihua Wang
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Xiufen Zheng
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Yuetang Ma
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Chunmei Chen
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
| | - Hongfeng Tang
- Department of Dermatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde Foshan), Foshan, China
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90
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Xiong L, Bai Y, Zhao J, Lanuti M, Tang H. P2.01-101 Multiple Chemotherapy-Based Combination Therapy Strategies for Advanced Lung Cancer Patients: A Systematic Review and Network Meta-Analysis. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1444] [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: 10/25/2022]
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91
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Zhao XQ, Tang H, Yang J, Gu XY, Wang SM, Ding Y. MicroRNA-15a-5p down-regulation inhibits cervical cancer by targeting TP53INP1 in vitro. Eur Rev Med Pharmacol Sci 2019; 23:8219-8229. [PMID: 31646552 DOI: 10.26355/eurrev_201910_19129] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE An increasing number of reports have shown that microRNAs (miRNAs) play a vital role in the occurrence and development of cancer by acting as tumor inhibitors or oncogenes. The purpose of this research was to explore whether the expression level of microRNA-15a-5p (miR-15a-5p) was related to TP53 regulated inhibitor of apoptosis 1 (TP53INP1) in cervical cancer, and to explore the role of miR-15a-5p in cervical cancer in vitro. PATIENTS AND METHODS Human cervical cancer tissues and adjacent normal tissues were obtained from 30 cervical cancer patients. Firstly, we carried out the quantitative Real Time-PCR (qRT-PCR) assay to evaluate the level of miR-15a-5p in cervical cancer tissues and cell lines. The TargetScan and the Dual-Luciferase Reporter Assay were used to confirm the relationship between TP53INP1 and miR-15a-5p. Besides, the Cell Counting Kit-8 (CCK-8) and the flow cytometry analysis were performed to detect the effect of miR-15a-5p on cell proliferation and apoptosis in cervical cancer cells. RESULTS Our results showed that the expression of miR-15a-5p was enhanced in cervical cancer tissues and cells lines. The data from the Dual-Luciferase Reporter Assay demonstrated that TP53INP1 was a direct target of miR-15a-5p. We also found that TP53INP1 was down-regulated in the cervical cancer tissues and cell lines compared with the adjacent normal tissues and normal cervical cells. Besides, the down-regulation of miR-15a-5p depressed cervical cancer cell proliferation and enhanced cell apoptosis. Our results clearly suggested that the down-regulation of TP53INP1 successfully impaired the tumor-inhibition effects of miR-15a-5p inhibitor in cervical cancer cells. CONCLUSIONS Our findings indicated that miR-15a-5p functioned as a tumor-promoting gene in cervical cancer by directly targeting TP53INP1, indicating that miR-15a-5p might be a potential treatment target for cervical cancer patients.
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Affiliation(s)
- X-Q Zhao
- Medical School of Nantong University, Nantong, China.
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92
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Tang H, Bai Y, Xiong L, Zhao J, Lanuti M. P1.03-32 Knockdown of CENPF Gene Inhibits the Progression of Lung Adenocarcinoma Mediated by ERβ2/5 Pathway. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.884] [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: 10/25/2022]
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93
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Yan LL, Tang H. [Research progress of hepatitis B and C virus co-infection]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:468-472. [PMID: 31357767 DOI: 10.3760/cma.j.issn.1007-3418.2019.06.017] [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: 02/05/2023]
Abstract
Hepatitis B virus (HBV)/hepatitis C virus (HCV) co-infection shares the same transmission routes, and thereby it is not rare in regions where the prevalence of HBV and HCV is high. However, the co-infection rates of HBV/HCV reported in different regions of the world are relatively dissimilar, and the co-infection rates of HBV/HCV in the population are unidentified due to the presence of silent HBV infection. Thus, the phenomenon of underestimation exists. HCV may have an inhibitory effect on HBV replication when HBV/HCV is co-infected, and the effect of HBV on HCV replication remains to be certain by more studies. Furthermore, the mechanism of interaction may include the direct effect of viral proteins and the indirect effect of immune mediated host response. HBV/HCV co-infection can cause more serious chronic liver diseases and cirrhosis, and can increase the risk of liver cancer. The efficacy of peginterferon plus ribavirin in patients with HBV/HCV co-infection is same as HCV monotherapy. There are few studies on the efficacy of direct-acting antiviral drugs. Patients with HBV/HCV co-infection have the risk of HBV reactivation regardless of anti-HCV treatment with peginterferon plus ribavirin or direct-acting antiviral drugs, but the probability of HBV reactivation and how to assess and prevent it needs more studies to interpret.
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Affiliation(s)
- L L Yan
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China;Division of Infectious Diseases, State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610041 , China
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94
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Zhu YQ, Wang DQ, Liu B, Hu Y, Shen YY, Xu JH, Tang H. Wheat-dependent exercise-induced anaphylaxis in Chinese people: a clinical research on 33 cases with antigenic analysis of wheat proteins. Clin Exp Dermatol 2019; 45:56-62. [PMID: 31267575 DOI: 10.1111/ced.14035] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/28/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Wheat-dependent exercise-induced anaphylaxis (WDEIA) is a severe allergic condition in which wheat ingestion together followed by physical exercise induces anaphylaxis. For patients with WDEIA, omega-5 gliadin is considered to be one of the major allergens. AIM To analyse the clinical features and allergen spectrum of WDEIA and to investigate the relationship between WDEIA and serum levels of platelet-activating factor (PAF), interleukin (IL)-9 and IL-33. METHODS Medical histories and conditions of WDEIA cases were collected and summarized, with allergen tests of wheat proteins measured at the same visit. Of the 33 patients enrolled, 13 also had serum levels of PAF, IL-9 and IL-33 measured. The healthy control (HC) group consisted of 13 healthy individuals, who also underwent both the wheat-protein allergen tests and the inflammatory-mediator tests. RESULTS All patients experienced severe allergic reaction during exercise after wheat ingestion. Manifestations of WDEIA included facial oedema, generalized urticaria and respiratory symptoms. Unconsciousness was also observed in 21 cases. In the patient group, 57.6% were confirmed as hypersensitive to glyceraldehyde-3-phosphate dehydrogenase (GAPDH), while 54.5% were allergic to omega-5 gliadin. PAF concentration was significantly higher in patients with WDEIA compared with HCs, whereas there was no significant difference in IL-9 or IL-33 between the two groups. CONCLUSIONS WDEIA is a rare type of anaphylaxis. GAPDH and omega-5 gliadin may be the most common allergy-causing wheat proteins for Chinese people. PAF may be associated with the onset and development of WDEIA.
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Affiliation(s)
- Y-Q Zhu
- Department of Dermatology, Huashan Hospital affiliated to Fudan University, No. 12, Wulumuqi Zhong Rd, Shanghai, 200040, China
| | - D-Q Wang
- Department of Dermatology, Huashan Hospital affiliated to Fudan University, No. 12, Wulumuqi Zhong Rd, Shanghai, 200040, China
| | - B Liu
- Department of Dermatology, The Fifth People's Hospital of Shanghai affiliated to Fudan University, No. 128, Ruili Rd, Shanghai, 200040, China
| | - Y Hu
- Department of Dermatology, Huashan Hospital affiliated to Fudan University, No. 12, Wulumuqi Zhong Rd, Shanghai, 200040, China
| | - Y-Y Shen
- Department of Dermatology, Huashan Hospital affiliated to Fudan University, No. 12, Wulumuqi Zhong Rd, Shanghai, 200040, China
| | - J-H Xu
- Department of Dermatology, Huashan Hospital affiliated to Fudan University, No. 12, Wulumuqi Zhong Rd, Shanghai, 200040, China
| | - H Tang
- Department of Dermatology, Huashan Hospital affiliated to Fudan University, No. 12, Wulumuqi Zhong Rd, Shanghai, 200040, China
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95
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Shah SB, Hu H, Wang W, Liu Y, Ali F, Xu P, Tang H. Evaluation of plant growth-promoting activity of strain HBCD-sjtu. J BIOL REG HOMEOS AG 2019; 33:1187-1192. [PMID: 31321966] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- S B Shah
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai People's Republic of China
| | - H Hu
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai People's Republic of China
| | - W Wang
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai People's Republic of China
| | - Y Liu
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai People's Republic of China
| | - F Ali
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai People's Republic of China
| | - P Xu
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai People's Republic of China
| | - H Tang
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai People's Republic of China
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96
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Desta M, Liu G, Hu H, Wu G, Xu P, Tang H. Purification, crystallization and preliminary X-ray analysis of NicX, a key enzyme in nicotinic acid degradation from Pseudomonas putida KT2440. J BIOL REG HOMEOS AG 2019; 33:1149-1154. [PMID: 31298021] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- M Desta
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - G Liu
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - H Hu
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - G Wu
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - P Xu
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - H Tang
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
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WANG W, Tang H, Tang R, Liu Y, Wan Y. SUN-309 TOTAL FLAVONE OF ABELMOSCHUS MANIHOT, A NATURAL EXTRACT PROTECTS AGAINST PODOCYTE APOPTOSIS IN DIABETIC KIDNEY DISEASE BY ATTENUATING PERK-EIF2α-ATF4-MEDIATED ENDOPLASMIC RETICULUM STRESS. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.715] [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: 11/27/2022] Open
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98
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Eirin A, Herrmann SM, Saad A, Abumoawad A, Tang H, Lerman A, Textor SC, Lerman LO. Urinary mitochondrial DNA copy number identifies renal mitochondrial injury in renovascular hypertensive patients undergoing renal revascularization: A Pilot Study. Acta Physiol (Oxf) 2019; 226:e13267. [PMID: 30803138 DOI: 10.1111/apha.13267] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 02/21/2019] [Indexed: 02/06/2023]
Abstract
AIMS Patients with renovascular hypertension (RVH) exhibit elevated urinary mtDNA copy numbers, considered to constitute surrogate markers of renal mitochondrial injury. The modest success of percutaneous transluminal renal angioplasty (PTRA) in restoring renal function in RVH has been postulated to be partly attributable to acute reperfusion injury. We hypothesized that mitoprotection during revascularization would ameliorate PTRA-induced renal mitochondrial injury, reflected in elevated urinary mtDNA copy numbers and improve blood pressure and functional outcomes 3 months later. METHODS We prospectively measured urinary copy number of the mtDNA genes COX3 and ND1 using qPCR in RVH patients before and 24 hrs after PTRA, performed during IV infusion of vehicle (n = 8) or the mitoprotective drug elamipretide (ELAM, 0.05 mg/kg/h, n = 6). Five healthy volunteers (HV) served as controls. Urinary mtDNA levels were also assessed in RVH and normal pigs (n = 7 each), in which renal mitochondrial structure and density were studied ex-vivo. RESULTS Baseline urinary mtDNA levels were elevated in all RVH patients vs HV and directly correlated with serum creatinine levels. An increase in urinary mtDNA 24 hours after PTRA was blunted in PTRA+ELAM vs PTRA+Placebo. Furthermore, 3-months after PTRA, systolic blood pressure decreased and estimated glomerular filtration rate increased only in ELAM-treated subjects. In RVH pigs, mitochondrial damage was observed using electron microscopy in tubular cells and elevated urinary mtDNA levels correlated inversely with renal mitochondrial density. CONCLUSIONS PTRA leads to an acute rise in urinary mtDNA, reflecting renal mitochondrial injury that in turn inhibits renal recovery. Mitoprotection might minimize PTRA-associated mitochondrial injury and improve renal outcomes after revascularization.
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Affiliation(s)
- A. Eirin
- Department of Internal Medicine Divisions of Nephrology and Hypertension Mayo Clinic Rochester Minnesota
| | - S. M. Herrmann
- Department of Internal Medicine Divisions of Nephrology and Hypertension Mayo Clinic Rochester Minnesota
| | - A. Saad
- Department of Internal Medicine Divisions of Nephrology and Hypertension Mayo Clinic Rochester Minnesota
| | - A. Abumoawad
- Department of Internal Medicine Divisions of Nephrology and Hypertension Mayo Clinic Rochester Minnesota
| | - H. Tang
- Department of Internal Medicine Divisions of Nephrology and Hypertension Mayo Clinic Rochester Minnesota
| | - A. Lerman
- Cardiovascular Diseases Mayo Clinic Rochester Minnesota
| | - S. C. Textor
- Department of Internal Medicine Divisions of Nephrology and Hypertension Mayo Clinic Rochester Minnesota
| | - L. O. Lerman
- Department of Internal Medicine Divisions of Nephrology and Hypertension Mayo Clinic Rochester Minnesota
- Cardiovascular Diseases Mayo Clinic Rochester Minnesota
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99
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Zhang D, Lou X, Yan H, Pan J, Mao H, Tang H, Shu Y, Zhao Y, Liu L, Li J, Chen D, Zhang Y, Ma X. Respiratory virus associated with surgery in children patients. Respir Res 2019; 20:126. [PMID: 31208426 PMCID: PMC6580463 DOI: 10.1186/s12931-019-1086-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 05/29/2019] [Indexed: 11/25/2022] Open
Abstract
Background Viral respiratory infection (VRI) is a common contraindication to elective surgery. Asymptomatic shedding among pediatric surgery patients (PSPs) could potentially lead to progression of symptomatic diseases and cause outbreaks of respiratory diseases. The aim of this study is to investigate the incidence of infection among mild symptomatic PSP group and asymptomatic PSP group after surgical procedure. Methods We collected the induced sputum from enrolled 1629 children (under 18 years of age) with no respiratory symptom prior to pediatric surgery between March 2017 and February 2019. We tested 16 different respiratory virus infections in post-surgery mild symptomatic PSP group and asymptomatic PSP group using a quantitative real-time reverse transcriptase polymerase chain reaction (qRT-PCR) assay panel. We analyzed symptom data and quantitative viral load to investigate the association between viruses, symptoms and viral quantity in qRT-PCR-positive PSPs. Results Out of 1629 children enrolled, a total of 204 respiratory viruses were present in 171 (10.50%) PSPs including 47 patients with mild symptoms and 124 with no symptoms after surgery. Commonly detected viruses were human rhino/enterovirus (HRV/EV, 42.19%), parainfluenza virus 3 (PIV3, 24.48%), coronavirus (CoV NL63, OC43, HKU1, 11.46%), and respiratory syncytial virus (RSV, 9.9%). PIV3 infection with a higher viral load was frequently found in PSPs presenting with mild symptoms, progressing to pneumonia with radiographic evidence after surgery. HRV/EV were the most commonly detected pathogens in both asymptomatic and mild symptomatic PSPs. CoV (OC43, HKU1) infections with a higher viral load were mostly observed in asymptomatic PSPs progressing to alveolar or interstitial infiltration. Conclusions Our study suggested that PIV3 is a new risk factor for VRI in PSPs. Employing a more comprehensive, sensitive and quantitative method should be considered for preoperative testing of respiratory viruses in order to guide optimal surgical timing.
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Affiliation(s)
- Dan Zhang
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, No.155 Changbai Road, Changping district, Beijing, 102206, China.,Institute of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, No. 3399 Binsheng Road, 310051, Binjiang district, Hangzhou, China
| | - Xiuyu Lou
- Institute of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, No. 3399 Binsheng Road, 310051, Binjiang district, Hangzhou, China
| | - Hao Yan
- Institute of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, No. 3399 Binsheng Road, 310051, Binjiang district, Hangzhou, China
| | - Junhang Pan
- Institute of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, No. 3399 Binsheng Road, 310051, Binjiang district, Hangzhou, China
| | - Haiyan Mao
- Institute of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, No. 3399 Binsheng Road, 310051, Binjiang district, Hangzhou, China
| | - Hongfeng Tang
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yan Shu
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yun Zhao
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Lei Liu
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Junping Li
- Department of Pathology, The Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Dong Chen
- Department of Laboratory Medicine, The Sixth People Hospital of Wenzhou, Wenzhou, China
| | - Yanjun Zhang
- Institute of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, No. 3399 Binsheng Road, 310051, Binjiang district, Hangzhou, China.
| | - Xuejun Ma
- NHC Key Laboratory of Medical Virology and Viral Diseases, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, No.155 Changbai Road, Changping district, Beijing, 102206, China.
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Wu B, Zhang Y, Tang H, Yang M, Long H, Shi G, Tang J, Shi X. A Novel SCN9A Mutation (F826Y) in Primary Erythromelalgia Alters the Excitability of Nav1.7. Curr Mol Med 2019; 17:450-457. [PMID: 28990532 DOI: 10.2174/1566524017666171009105029] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 09/22/2017] [Accepted: 10/03/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Primary erythromelalgia (PE) is a dominant inherited disorder characterized by recurrent pain, redness, and warmth of the extremities that is caused by gain-of-function mutations in Nav1.7 encoding gene SCN9A. Most of the PE-causing mutations of Nav1.7 have been shown to be able to render Nav1.7-expressing cells hyperexcitable, however in most PE cases the symptoms are refractory to treatment with sodium channel blockers and the mechanism underlying the intractability has not been clearly clarified. OBJECTIVE To identify the mutation of SCN9A in a Chinese Han family with typical symptoms of PE and study the electrophysiological effect of the identified mutation. METHODS A Chinese Han family with typical symptoms of PE was collected and the proband's response to treatment was recorded. All the exons and flanking intronic sequences of SCN9A were amplified with PCR and sequenced. Several online programs were used to predict the damaging effect of variants. The functional effect of variants was studied by voltage-clamp analysis in CHO-K1 cells. RESULTS The PE symptoms of the proband are refractory to all kinds of reported medications. Sequence analysis of SCN9A showed that a novel c.2477T>A (p. F826Y) mutation co-segregated with the disease phenotype. Several online programs predicted that the F826Y mutation has a deleterious effect on the gene product. Voltage-clamp analysis showed that while compared with the wild-type channel, activation of the F826Y mutant channel was shifted by 7.7 mV in a hyperpolarizing direction, whereas steadystate inactivation was shifted by 4.3 mV in a depolarizing direction. CONCLUSION A novel disease-causing SCN9A Mutation (F826Y) was identified in a Chinese family with typical PE symptoms refractory to treatment. F826Y of Nav1.7 could render DRG neurons hyperexcitable, contributing to the pathogenesis of PE.
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Affiliation(s)
- B Wu
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.,Department of Gastroenterology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Y Zhang
- The National & Local Joint Engineering Laboratory of Animal Peptide Drug Development, College of Life Sciences, Hunan Normal University, Changsha 410081, Hunan, China
| | - H Tang
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - M Yang
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - H Long
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - G Shi
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - J Tang
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China.,Department of Neurology, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - X Shi
- Department of Medical Genetics, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
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