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Zhang JC, Liu HQ. Abnormal development of the fetal nervous system in a gestational woman with LEOPARD syndrome. Asian J Surg 2024; 47:2067-2068. [PMID: 38245422 DOI: 10.1016/j.asjsur.2024.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 01/05/2024] [Indexed: 01/22/2024] Open
Affiliation(s)
- Jin-Cheng Zhang
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, People's Republic of China
| | - Hong-Qian Liu
- Department of Gynecology and Obstetrics, West China Second Hospital, Sichuan University, Chengdu, People's Republic of China; Key Laboratory of Birth Defects and Related Diseases of Women and Children, Sichuan University, Ministry of Education, Chengdu, People's Republic of China.
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Zhong W, Zhang L, Zhong JQ, He XP, Liu HQ, Zhu WQ, Fang CF. Comparison of outcomes between preservation or division of the uterine round ligament in laparoscopic groin hernia repair in females: a meta-analysis and trial sequential analysis. Hernia 2024; 28:343-354. [PMID: 38165537 PMCID: PMC10997534 DOI: 10.1007/s10029-023-02917-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 10/14/2023] [Indexed: 01/03/2024]
Abstract
PURPOSE The purpose of this study was to perform a meta-analysis comparing the short-term and long-term outcomes in laparoscopic groin hernia repair with or without preservation of the uterine round ligament (URL) in females. METHODS We searched several databases including PubMed, Web of Science, Cochrane Library, and and CNKI databases. This meta-analysis included randomized clinical trials, and retrospective comparative studies regarding preservation or division of the URL in laparoscopic groin hernia repair in females. Outcomes of interest were age, BMI, type of hernia, type of surgery, operating time, estimated blood loss, time of hospitalization, seroma, concomitant injury, mesh infection, recurrence, uterine prolapse, foreign body sensation, chronic pain, and pregnancy. Meta-analyses and trial sequential analysis were performed with Review Manager v5.3 and TSA software, respectively. RESULTS Of 192 potentially eligible articles, 9 studies with 1104 participants met the eligibility criteria and were included in the meta-analysis. There were no significant difference in age (MD-6.58, 95% CI - 13.41 to 0.24; P = 0.06), BMI (MD 0.05, 95%CI - 0.31 to 0.40; P = 0.81), blood loss (MD-0.04, 95% CI - 0.75 to 0.66; P = 0.90), time of hospitalization (MD-0.22, 95% CI-1.13 to 0.69; P = 0.64), seroma (OR 0.71, 95% CI 0.41 to 1.24; P = 0.23), concomitant injury (OR 0.32, 95% CI 0.01 to 8.24; P = 0.68), mesh infection (OR 0.13, 95% CI 0.01 to 2.61; P = 0.18), recurrence (OR 1.13, 95% CI 0.18 to 7.25; P = 0.90), uterine prolapse(OR 0.71, 95% CI 0.07 to 6.94; P = 0.77), foreign body sensation (OR 1.95, 95% CI 0.53 to 7.23; P = 0.32) and chronic pain(OR 1.03 95% CI 0.4 to 2.69; P = 0.95). However, this meta-analysis demonstrated a statistically significant difference in operating time (MD 6.62, 95% CI 2.20 to 11.04; P = 0.0003) between the preservation group and division group. Trial sequential analysis showed that the cumulative Z value of the operating time crossed the traditional boundary value and the TSA boundary value in the third study, and the cumulative sample size had reached the required information size (RIS), indicating that the current conclusion was stable. CONCLUSION In summary, laparoscopic groin hernia repair in women with the preservation of the round uterine ligament requires a longer operating time, but there was no advantage in short-term or long-term complications, and there was no clear evidence on whether it causes infertility and uterine prolapse.
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Affiliation(s)
- W Zhong
- Department of Gastrointestinal Surgery, The Ganzhou People's Hospital, Ganzhou, China
| | - L Zhang
- Department of Gastrointestinal Surgery, The Ganzhou People's Hospital, Ganzhou, China
| | - J Q Zhong
- Department of Gastrointestinal Surgery, The Ganzhou People's Hospital, Ganzhou, China
| | - X P He
- Department of Gastrointestinal Surgery, The Ganzhou People's Hospital, Ganzhou, China
| | - H Q Liu
- Department of Gastrointestinal Surgery, The Ganzhou People's Hospital, Ganzhou, China
| | - W Q Zhu
- Department of Gastrointestinal Surgery, The Ganzhou People's Hospital, Ganzhou, China
| | - C F Fang
- Department of Gastrointestinal Surgery, The Ganzhou People's Hospital, Ganzhou, China.
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Mu D, Liu HQ. [Research progress on the pathogenic mechanisms, diagnosis and treatment of McCune-Albright syndrome]. Zhonghua Yu Fang Yi Xue Za Zhi 2024; 58:183-190. [PMID: 38387948 DOI: 10.3760/cma.j.cn112150-20231008-00242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
McCune-Albright syndrome is a rare chimeric disorder due to mutations in the postzygotic GNAS gene. It belongs to the group of guanine nucleotide-binding protein diseases, affecting a wide range of individuals. It is characterized by fibrous dysplasia, café-au-lait skin macules, and precocious puberty with other variable clinical manifestations. At present, there are difficulties in the molecular diagnosis of McCune-Albright syndrome, and there is a lack of effective clinical treatments to halt or reverse the course and regression of the disease. This article summarizes the clinical manifestations, diagnosis, pathogenic molecular mechanisms, treatment and relevant fertility guidelines of McCune-Albright syndrome, with a view to further research and therapy of McCune-Albright syndrome.
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Affiliation(s)
- D Mu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan Uniersity/Department of Medical Genetics/Prenatal Diagnostic Center, West China Second University Hospital, Sichuan University/Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu 610041, China
| | - H Q Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan Uniersity/Department of Medical Genetics/Prenatal Diagnostic Center, West China Second University Hospital, Sichuan University/Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, Sichuan University, Chengdu 610041, China
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Zhang Y, Zhang YY, Geng X, Liu HQ, Jing H, Zhang F. [Investigation on reproductive health status of women workers in different positions in oilfield enterprises]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:918-922. [PMID: 38195228 DOI: 10.3760/cma.j.cn121094-20221021-00506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/11/2024]
Abstract
Objective: The status and influencing factors of reproductive health (including menstrual period and gynecological diseases) of female workers in different positions of oilfield enterprises were analyzed. Methods: From January to December 2020, a total of 979 female workers in an oil field were selected as research objects by the judgment sampling method, and the "Female Reproductive Health Survey" was used as the investigation tool to investigate the demographic characteristics, menstrual status and gynecological diseases. The influential factors were analyzed by 2-test and logistic regression analysis. Results: The prevalence of abnormal menstruation was 26.1% (256/979), dysmenorrhea 53.1% (520/979), and gynecological diseases 54.34% (532/979). The prevalence of breast disease was 23.39% (229/979), uterine disease 11.03% (108/979), cervical disease 10.32% (101/979), and HPV infection 7.97% (78/979). Age, the nature of the job and whether occupational harmful factors were clear were the influencing factors of gynecological diseases (P=0.001, 0.000, 0.007). Age, job nature, working hours and work intensity were the influencing factors of abnormal menstruation (P=0.005, 0.000, 0.000, 0.010) . Conclusion: The reproductive health status of female workers in different positions of oil field enterprises is not optimistic, and the reproductive health status of female workers in professional and technical positions needs to be improved.
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Affiliation(s)
- Y Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University (Shandong Academy of Medical Sciences), Jinan 250062, China
| | - Y Y Zhang
- Jinan Center for Disease Control and Prevention, Jinan 250000, China
| | - X Geng
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University (Shandong Academy of Medical Sciences), Jinan 250062, China
| | - H Q Liu
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University (Shandong Academy of Medical Sciences), Jinan 250062, China
| | - H Jing
- Occupational Diseases Hospital of Shangdong First Medical University, Jinan 250021, China
| | - F Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University (Shandong Academy of Medical Sciences), Jinan 250062, China
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Liu S, Zhou C, Liu AD, Zhuang G, Feng X, Zhang J, Zhong XM, Ji JX, Zhang SB, Liu HQ, Wang SX, Fan HR, Wang SF, Gao LT, Shi WX, Chen XY, Liu WD. An E-band multi-channel Doppler backscattering system on EAST. Rev Sci Instrum 2023; 94:123507. [PMID: 38109469 DOI: 10.1063/5.0166949] [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: 07/09/2023] [Accepted: 11/28/2023] [Indexed: 12/20/2023]
Abstract
An E-band (60-90 GHz) multi-channel Doppler backscattering (DBS) system with X-mode polarization has been installed on the Experimental Advanced Superconducting Tokamak (EAST), which can measure the turbulence at five different radial locations simultaneously. This system can launch 31 fixed microwave frequencies in the range of 60-90 GHz with a 1 GHz interval into the plasma, and five probing signals are selected by employing a reference signal and multiple filters. During experiments, the frequency of the reference signal is tunable in the E-band, and the selected probing signals can be changed as needed without any other adjustments, which can be performed in one shot or between shots. Furthermore, the incident angle can be adjusted from -10° to 20°, and the wavenumber range is 4-25 cm-1 with a wavenumber resolution of Δk/k ≤ 0.35. Ray tracing simulations are employed to calculate the scattering locations and the perpendicular wavenumber. In this article, the hardware design, ray tracing, and initial results obtained from the EAST plasma will be presented.
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Affiliation(s)
- S Liu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - C Zhou
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - A D Liu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - G Zhuang
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - X Feng
- Shenzhen University, Shenzhen, Guangdong 518061, China
| | - J Zhang
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - X M Zhong
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - J X Ji
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - S B Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230021, China
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230021, China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230021, China
| | - H R Fan
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - S F Wang
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - L T Gao
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - W X Shi
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - X Y Chen
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - W D Liu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
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Liu NH, Liu HQ, Zheng JY, Zhu ML, Wu LH, Pan HF, He XX. Fresh Washed Microbiota Transplantation Alters Gut Microbiota Metabolites to Ameliorate Sleeping Disorder Symptom of Autistic Children. J Microbiol 2023; 61:741-753. [PMID: 37665552 DOI: 10.1007/s12275-023-00069-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 07/25/2023] [Accepted: 07/30/2023] [Indexed: 09/05/2023]
Abstract
Accumulating studies have raised concerns about gut dysbiosis associating autism spectrum disorder (ASD) and its related symptoms. However, the effect of gut microbiota modification on the Chinese ASD population and its underlying mechanism were still elusive. Herein, we enrolled 24 ASD children to perform the first course of fresh washed microbiota transplantation (WMT), 18 patients decided to participate the second course, 13 of which stayed to participate the third course, and there were 8 patients at the fourth course. Then we evaluated the effects of fresh WMT on these patients and their related symptoms. Our results found that the sleeping disorder symptom was positively interrelated to ASD, fresh WMT significantly alleviated ASD and its sleeping disorder and constipation symptoms. In addition, WMT stably and continuously downregulated Bacteroides/Flavonifractor/Parasutterella while upregulated Prevotella_9 to decrease toxic metabolic production and improve detoxification by regulating glycolysis/myo-inositol/D-glucuronide/D-glucarate degradation, L-1,2-propanediol degradation, fatty acid β-oxidation. Thus, our results suggested that fresh WMT moderated gut microbiome to improve the behavioral and sleeping disorder symptoms of ASD via decrease toxic metabolic production and improve detoxification. Which thus provides a promising gut ecological strategy for ASD children and its related symptoms treatments.
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Affiliation(s)
- Nai-Hua Liu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, People's Republic of China
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Nonglin Down Street 19, Guangzhou, 510080, People's Republic of China
| | - Hong-Qian Liu
- Department of Gastroenterology, Research Center for Engineering Techniques of Microbiota-Targeted Therapies of Guangdong Province, The First Affiliated Hospital of Guangdong Pharmaceutical University, Nonglin Down Street 19, Guangzhou, 510080, People's Republic of China
| | - Jia-Yi Zheng
- Department of Neurology, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, 510120, People's Republic of China
| | - Meng-Lu Zhu
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, People's Republic of China
| | - Li-Hao Wu
- Department of Gastroenterology, Research Center for Engineering Techniques of Microbiota-Targeted Therapies of Guangdong Province, The First Affiliated Hospital of Guangdong Pharmaceutical University, Nonglin Down Street 19, Guangzhou, 510080, People's Republic of China
| | - Hua-Feng Pan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, People's Republic of China.
| | - Xing-Xiang He
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Nonglin Down Street 19, Guangzhou, 510080, People's Republic of China.
- Department of Gastroenterology, Research Center for Engineering Techniques of Microbiota-Targeted Therapies of Guangdong Province, The First Affiliated Hospital of Guangdong Pharmaceutical University, Nonglin Down Street 19, Guangzhou, 510080, People's Republic of China.
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Wang SQ, Zhan YQ, Hu X, Zhuang YP, Liu HQ, Hong MF, Zhong HJ. Anemia is associated with disease severity, hepatic complications, and progression of Wilson disease: a retrospective cohort study. Dig Dis 2023:000530473. [PMID: 37019089 DOI: 10.1159/000530473] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 03/28/2023] [Indexed: 04/07/2023]
Abstract
INTRODUCTION Anemia is a common manifestation of chronic liver diseases. It is a predictor of severe disease, a high risk of complications, and poor outcomes in various liver diseases. However, it remains unclear whether anemia serves as a similar indicator in patients with Wilson disease (WD). Therefore, this study aimed to investigate the relationship between anemia and severity, hepatic complications, and the progression of WD. METHODS Medical data were collected retrospectively from January 1, 2016, to December 31, 2020. Univariate and multivariate analyses were carried out to investigate the relationship between anemia and liver-associated disease severity, hepatic complications, and the progression of WD. RESULTS A total of 288 WD patients (48 with and 240 without anemia) were enrolled in the study. Multivariate linear regression revealed that WD patients with anemia had significantly higher levels of bilirubin, alanine transaminase, prothrombin time, international normalized ratio, type Ⅳ collagen, and hyaluronic acid and significantly lower levels of albumin, total cholesterol, and high-density lipoprotein-cholesterol (all P < 0.05). Multivariate logistic regression showed that anemia was a risk factor for gastric varices and ascites (all P < 0.05). Fully adjusted Cox regression revealed that anemia was an independent risk factor for advanced Child-Pugh classification (P = 0.034). CONCLUSIONS Anemia was common in WD patients and was associated with greater disease severity, a higher risk of hepatic complications, and a faster progression.
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Chen ZX, Liu HQ, Wu ZH, He JL, Zhong HJ. Type 3 innate lymphoid cells as an indicator of renal dysfunction and serum uric acid in hyperuricemia. ADV CLIN EXP MED 2023; 32:307-313. [PMID: 36251792 DOI: 10.17219/acem/154625] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 07/10/2022] [Accepted: 09/15/2022] [Indexed: 12/08/2022]
Abstract
BACKGROUND Type 3 innate lymphoid cells (ILC3s) are a newly identified group of innate immune cells that participate in the progression of several metabolic diseases by secreting interleukin (IL)-17 and IL-22. These cytokines are associated with hyperuricemia (HUA) severity and development; however, the relationship between ILC3s and HUA remains unclear. OBJECTIVES To determine the characteristics of circulating ILC3s in patients with HUA. MATERIAL AND METHODS Type 3 innate lymphoid cells and their subsets were detected using flow cytometry in peripheral blood mononuclear cells (PBMCs) of 80 HUA patients and 30 healthy controls (HC). Plasma levels of IL-17A and IL-22 were measured with enzyme-linked immunosorbent assay (ELISA). Clinical data of enrolled subjects were collected from electronic medical records. RESULTS In patients with HUA, the frequency of circulating ILC3s was elevated and positively correlated with levels of serum uric acid and serum creatinine (Scr). Although there was no significant difference in the plasma concentration of IL-17A between the patients with HUA and healthy controls, positive correlations between plasma IL-17A and the concentration of serum uric acid and frequency of circulating ILC3s were observed in the patients with HUA. CONCLUSIONS In patients with HUA, positive correlations were detected between circulating ILC3 levels, plasma IL-17A and serum uric acid. Therefore, ILC3s and IL-17A may be useful indicators of disease severity, and are potential new therapeutic targets in HUA.
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Affiliation(s)
| | - Hong-Qian Liu
- Department of Gastroenterology, The First Affiliated Hospital of Guangdong Pharmaceutical University, China
| | - Zhen-Hua Wu
- Department of Gastroenterology, Maoming People's Hospital, China
| | - Jun-Lian He
- Department of Gastroenterology, The First Affiliated Hospital of Guangdong Pharmaceutical University, China
| | - Hao-Jie Zhong
- Department of Gastroenterology, The First Affiliated Hospital of Guangdong Pharmaceutical University, China
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, China
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Pan ZY, Liu HQ, Zhuang YP, Tan HB, Yang XY, Zhong HJ, He XX. Reduced type 3 innate lymphoid cells related to worsening kidney function in renal dysfunction. Exp Biol Med (Maywood) 2023; 248:242-252. [PMID: 36670544 PMCID: PMC10107398 DOI: 10.1177/15353702221147561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 11/22/2022] [Indexed: 01/22/2023] Open
Abstract
Intestinal mucosa barrier injury and immunity imbalance contribute to chronic kidney disease (CKD) progression. Type 3 innate lymphoid cells (ILC3s) are essential for normal intestinal homeostasis. Nevertheless, the relationship between ILC3s and CKD remains largely unknown. The aim of this study was to investigate the relationship linking ILC3s to clinical indicators among patients with renal dysfunction. The levels of circulating ILC3s and dendritic cells, as well as their subsets, in patients with renal dysfunction and healthy controls were determined through flow cytometry. The levels of human plasma granulocyte-macrophage colony-stimulating factor (GM-CSF) were measured using enzyme-linked immunosorbent assay. Renal function was evaluated by measuring the estimated glomerular filtration rate (eGFR), as well as the levels of serum creatinine, blood urea nitrogen (BUN), and uric acid. The results revealed that the proportion of peripheral ILC3s was significantly decreased in patients with renal dysfunction. This reduction was positively associated with the levels of eGFR, and inversely associated with the levels of BUN and uric acid. Similarly, the percentage of circulating C-C motif chemokine receptor 6-positive (CCR6 +) ILC3s was also obviously reduced, and demonstrated positive and negative associations with the levels of eGFR and BUN, respectively. Furthermore, the levels of CCR6 + ILC3s correlated positively with those of GM-CSF, as well as type 1 conventional dendritic cells (cDC1s), which also decreased in parallel with kidney function. Thus, the reduction of ILC3s, particularly CCR6 + ILC3s, was related to worsening kidney function in patients with renal dysfunction. This effect may delay renal function impairment by regulating cDC1s via the secretion of GM-CSF, indicating that CCR6 + ILC3s may serve as efficient biomarkers for evaluating kidney function.
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Affiliation(s)
- Zhao-Yu Pan
- Department of Gastroenterology, The
First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080,
China
| | - Hong-Qian Liu
- Department of Gastroenterology, The
First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080,
China
| | - Yu-Pei Zhuang
- Department of Gastroenterology, The
First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080,
China
- The First Clinical Medical College,
Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Hai-Bo Tan
- Shenzhen Traditional Chinese Medicine
Hospital Affiliated to Nanjing University of Chinese Medicine, Shenzhen 518033,
China
| | - Xiao-Ya Yang
- Department of Physiology, Guangzhou
Health Science College, Guangzhou 510450, China
| | - Hao-Jie Zhong
- Department of Gastroenterology, The
First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080,
China
- School of Biology and Biological
Engineering, South China University of Technology, Guangzhou 510080, China
| | - Xing-Xiang He
- Department of Gastroenterology, The
First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080,
China
- Xing-Xiang He.
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Lian H, Liu HQ, Brower DL, Ding WX, Huang Y, Wang SX, Li WM, Chu YQ, Zhu RJ, Jie YX. Non-inductive plasma vertical position measurement for the 1056 s discharge on EAST. Rev Sci Instrum 2022; 93:103511. [PMID: 36319364 DOI: 10.1063/5.0101707] [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: 06/02/2022] [Accepted: 09/01/2022] [Indexed: 06/16/2023]
Abstract
Vertical position stability plays a crucial role in maintaining safe and reliable plasma operation for long-pulse fusion devices. In general, the vertical position is measured by using inductive magnetic coils installed inside the vacuum vessel; however, the integration drift effects are inherent for steady-state or long-pulse plasma operation. Developing a non-magnetic approach provides a fusion reactor-relevant steady-state solution that avoids the negative impact of integration drift. In this paper, we compare the non-inductively determined vertical position achieved by line-integrated interferometer and polarimeter measurements to that employing an inductive flux loop for a 1056 s discharge recently achieved on EAST (Experimental Advanced Superconducting Tokamak). Experimental results show that the non-inductive measurement is more robust than flux loops after 300 s if the integrator is not reset to suppress integrator drift. Real-time vertical position control using the non-inductive system is proposed for the next EAST experimental campaign.
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Affiliation(s)
- H Lian
- University of California Los Angeles, Los Angeles, California 90095, USA
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - D L Brower
- University of California Los Angeles, Los Angeles, California 90095, USA
| | - W X Ding
- University of California Los Angeles, Los Angeles, California 90095, USA
| | - Y Huang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - Y Q Chu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - R J Zhu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
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Luo NX, Jiang SY, Cao SJ, Li JY, Han Q, Zhou MM, Li JZ, Guo GY, Liu ZM, Yang C, Ji BQ, Zhang ZF, Huang J, Yuan DD, Pan JY, Shi XF, Hu S, Lin Q, Zhao CG, Yan Y, Wang QF, Wei Q, Kan JQ, Gao CQ, Liu SY, Jiang XG, Liu HQ, Sun J, Du L, He L. [Outcomes at discharge of preterm infants born <34 weeks' gestation]. Zhonghua Er Ke Za Zhi 2022; 60:774-780. [PMID: 35922187 DOI: 10.3760/cma.j.cn112140-20220103-00002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the incidence and trend of short-term outcomes among preterm infants born <34 weeks' gestation. Methods: A secondary analysis of data from the standardized database established by a multicenter cluster-randomized controlled study "reduction of infection in neonatal intensive care units (NICU) using the evidence-based practice for improving quality (REIN-EPIQ) study". This study was conducted in 25 tertiary NICU. A total of 27 192 infants with gestational age <34 weeks at birth and admitted to NICU within the first 7 days of life from May 2015 to April 2018 were enrolled. Infants with severe congenital malformation were excluded. Descriptive analyses were used to describe the mortality and major morbidities of preterm infants by gestational age groups and different admission year groups. Cochran-Armitage test and Jonckheere-Terpstra test were used to analyze the trend of incidences of mortality and morbidities in 3 study-years. Multiple Logistic regression model was constructed to analyze the differences of outcomes in 3 study-years adjusting for confounders. Results: A total of 27 192 preterm infants were enrolled with gestational age of (31.3±2.0) weeks at birth and weight of (1 617±415) g at birth. Overall, 9.5% (2 594/27 192) of infants were discharged against medical advice, and the overall mortality rate was 10.7% (2 907/27 192). Mortality for infants who received complete care was 4.7% (1 147/24 598), and mortality or any major morbidity was 26.2% (6 452/24 598). The incidences of moderate to severe bronchopulmonary dysplasia, sepsis, severe intraventricular hemorrhage or periventricular leukomalacia, proven necrotizing enterocolitis, and severe retinopathy of prematurity were 16.0% (4 342/27 192), 11.9% (3 225/27 192), 6.8% (1 641/24 206), 3.6% (939/25 762) and 1.5% (214/13 868), respectively. There was a decreasing of the overall mortality (P<0.001) during the 3 years. Also, the incidences for sepsis and severe retinopathy of prematurity both decreased (both P<0.001). However, there were no significant differences in the major morbidity in preterm infants who received complete care during the 3-year study period (P=0.230). After adjusting for confounders, infants admitted during the third study year showed significantly lower risk of overall mortality (adjust OR=0.62, 95%CI 0.55-0.69, P<0.001), mortality or major morbidity, moderate to severe bronchopulmonary dysplasia, sepsis and severe retinopathy of prematurity, compared to those admitted in the first study year (all P<0.05). Conclusions: From 2015 to 2018, the mortality and major morbidities among preterm infants in Chinese NICU decreased, but there is still space for further efforts. Further targeted quality improvement is needed to improve the overall outcome of preterm infants.
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Affiliation(s)
- N X Luo
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - S Y Jiang
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - S J Cao
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Y Li
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Q Han
- National Health Commission (NHC) Key Laboratory of Neonatal Diseases, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - M M Zhou
- Department of Neonatology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - J Z Li
- Department of Neonatology, Women's Hospital of Nanjing Medical University, Nanjing 210004, China
| | - G Y Guo
- Department of Neonatology, Northwest Women's and Children's Hospital, Xi'an 200001, China
| | - Z M Liu
- Department of Neonatology, Maternal and Child Hospital of Hubei Province, Wuhan 430064, China
| | - C Yang
- Department of Neonatology, Suzhou Municipal Hospital, Suzhou 215008, China
| | - B Q Ji
- Department of Neonatology, Shanxi Children's Hospital, Taiyuan 030006, China
| | - Z F Zhang
- Department of Neonatology, Fujian Maternity and Child Health Hospital, Fuzhou 350005, China
| | - J Huang
- Department of Neonatology, the Affiliated Shenzhen Maternity and Child Healthcare Hospital of Southern Medical University, Shenzhen 518047, China
| | - D D Yuan
- Department of Neonatology, Qingdao Women and Children's Hospital of Southern Medical University, Qingdao 266011, China
| | - J Y Pan
- Department of Neonatology, Guiyang Maternal and Child Health Care Hospital, Guiyong Children's Hospital, Guiyang 550002, China
| | - X F Shi
- Department of Neonatology, Gansu Provincial Maternal and Child-care Hospital, Lanzhou 730050, China
| | - S Hu
- Department of Neonatology, Shanghai First Maternal and Infant Hospital, Shanghai 201204, China
| | - Q Lin
- Department of Neonatology, the 2nd Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325088, China
| | - C G Zhao
- Department of Neonatology, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
| | - Y Yan
- Department of Neonatology, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - Q F Wang
- Department of Neonatology, the First Affiliated Hospital of Xinjiang Medical University, Urumchi 830054, China
| | - Q Wei
- Department of Neonatology, Maternity and Child Health Care of Guangxi Zhuang Autonomous Region, Nanning 530002, China
| | - J Q Kan
- Department of Neonatology, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - C Q Gao
- Department of Neonatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430014, China
| | - S Y Liu
- Department of Neonatology, Children's Hospital of Hebei Province, Shijiazhuang 050031, China
| | - X G Jiang
- Department of Neonatology, Wuxi Maternal and Child Health Care Hospital, Wuxi 214002, China
| | - H Q Liu
- Department of Neonatology, Children's Hospital Affiliated to Shandong University, Jinan 250022, China
| | - J Sun
- Division of Neonatology, Children's Hospital Affiliated to Zhengzhou University, Jinan Children's Hospital, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou 450018, China
| | - L Du
- Department of Neonatology, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - Li He
- Department of Neonatology, the Third Xiangya Hospital of Central South University, Changsha 410013, China
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Li E, Zou XL, Xu LQ, Chu YQ, Feng X, Lian H, Liu HQ, Liu AD, Han MK, Dong JQ, Wang HH, Liu JW, Zang Q, Wang SX, Zhou TF, Huang YH, Hu LQ, Zhou C, Qu HX, Chen Y, Lin SY, Zhang B, Qian JP, Hu JS, Xu GS, Chen JL, Lu K, Liu FK, Song YT, Li JG, Gong XZ. Experimental Evidence of Intrinsic Current Generation by Turbulence in Stationary Tokamak Plasmas. Phys Rev Lett 2022; 128:085003. [PMID: 35275672 DOI: 10.1103/physrevlett.128.085003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 09/16/2021] [Accepted: 02/01/2022] [Indexed: 06/14/2023]
Abstract
High-β_{θe} (a ratio of the electron thermal pressure to the poloidal magnetic pressure) steady-state long-pulse plasmas with steep central electron temperature gradient are achieved in the Experimental Advanced Superconducting Tokamak. An intrinsic current is observed to be modulated by turbulence driven by the electron temperature gradient. This turbulent current is generated in the countercurrent direction and can reach a maximum ratio of 25% of the bootstrap current. Gyrokinetic simulations and experimental observations indicate that the turbulence is the electron temperature gradient mode (ETG). The dominant mechanism for the turbulent current generation is due to the divergence of ETG-driven residual flux of current. Good agreement has been found between experiments and theory for the critical value of the electron temperature gradient triggering ETG and for the level of the turbulent current. The maximum values of turbulent current and electron temperature gradient lead to the destabilization of an m/n=1/1 kink mode, which by counteraction reduces the turbulence level (m and n are the poloidal and toroidal mode number, respectively). These observations suggest that the self-regulation system including turbulence, turbulent current, and kink mode is a contributing mechanism for sustaining the steady-state long-pulse high-β_{θe} regime.
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Affiliation(s)
- Erzhong Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - X L Zou
- CEA, IRFM, F-13108 Saint-Paul-lez-Durance, France
| | - L Q Xu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Y Q Chu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - X Feng
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - H Lian
- University of California Los Angeles, Los Angeles, California 90095, USA
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - A D Liu
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - M K Han
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, People's Republic of China
| | - J Q Dong
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, People's Republic of China
| | - H H Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J W Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - Q Zang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - T F Zhou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Y H Huang
- Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - L Q Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - C Zhou
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - H X Qu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - Y Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
- University of Science and Technology of China, Hefei 230022, People's Republic of China
| | - S Y Lin
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - B Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J P Qian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J S Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - G S Xu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J L Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - K Lu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - F K Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - Y T Song
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - J G Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
| | - X Z Gong
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
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Hu Y, Ma JY, Liu HQ, Yang BX, Zhao SS, Zhang JL, Wu RH. [Clinical and genetic features of seven children with MYH9-related disease]. Zhonghua Er Ke Za Zhi 2021; 59:968-972. [PMID: 34711033 DOI: 10.3760/cma.j.cn112140-20210809-00657] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To summarize and analyze of the clinical and genetic characteristics of children with nonmuscle myosin heavy chain 9 (MYH9)-related disease (MYH9-RD). Methods: To screen the patients who were first diagnosed as "chronic/refractory immune thrombocytopenia (ITP) " from April 2016 to May 2019 in Beijing Children's Hospital by genetic and clinical examinations, then the clinical manifestation, laboratory examination and genetics results of 7 children diagnosed with MYH9-RD were collected and summarized retrospectively. Results: Among 7 children diagnosed with MYH9-RD, 3 were males and 4 females. The age of onset was 1.25 (0.41-6.16) years. The course of disease was 2.16 (0.41-8.59) years. The automatic platelet count was (9 (5-30))×109/L. All the cases were found with giant platelets under microscope,and the manual platelet count was (70 (30-100))×109/L. Four cases had skin hemorrhage or epistaxis and 3 cases had no bleeding. All 7 patients had received first-or second-line therapy of ITP, of whom 1 case received splenic embolization, and all the treatments mentioned above were ineffective. Finally, it was confirmed that all 7 patients had heterozygous missense mutations of MYH9 gene by next generation sequencing (NGS), including 2 pedigrees and 5 sporadic cases. Four sporadic mutations occurred in N-terminal globular head domain (HD), and 1 sporadic case with p.D1424N mutations occurred in the C-terminal tail domain (TD). One of the pedigrees also had p.D1424N mutation. The other familial case had a novel variant with one missense variant p.A44D caused by the c.131C>A transition. One of the two p.R702 mutations had kidney damage, and several relatives of the new p.A44D mutations had deafness. Conclusions: In this study, the spontaneous mutations of seven MYH9-RD were common, and all patients were misdiagnosed as ITP, whereas the bleeding was mild and immunotherapy was ineffective. The suspected disease can be identified earlier by manual visual platelet volume and count, which can be confirmed by genetic testing. It is more important to monitor the development of other organs damage instead of thrombocytopenia. For cases with p.R702 mutations the doctor should be aware of kidney damage, and for the cases with novel mutations p.A44D the doctor should be aware of hearing loss.
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Affiliation(s)
- Y Hu
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - J Y Ma
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - H Q Liu
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - B X Yang
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - S S Zhao
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - J L Zhang
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - R H Wu
- Hematology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Discipline of Pediatrics, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
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14
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Zhang ML, Ma WF, Gao XY, Shi YY, Liu HQ, Jiang YS, Qin LZ, Yuan LP, Li W, Zhang JW. [Clinical features and prognosis of patients with leptomeningeal metastases]. Zhonghua Yi Xue Za Zhi 2021; 101:1154-1159. [PMID: 33902246 DOI: 10.3760/cma.j.cn112137-20201020-02881] [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 describe the clinical manifestations, neuroimaging, cerebrospinal fluid(CSF) cytology and prognosis of Leptomeningeal metastases(LM). Methods: The clinical manifestations, imaging features and CSF cytology of LM patients admitted to Henan Provincial People's Hospital from May 1, 2015 to May 31, 2020 were retrospectively analyzed. The overall survival (OS) was evaluated by the time from the diagnosis of LM to death. Results: A total of 88 patients with LM were enrolled in the study, and the median age was 59 years (range:28-78 years). There were 42 males (47.7%) and 46 females (52.3%). According to the pathological classification, it was lung cancer in 58 cases (65.9%), gastric cancer in 13 cases (14.8%), breast cancer in 7 cases (8.0%), melanoma in 1 case, esophageal cancer in 1 case, gallbladder cancer in 1 case, renal cell carcinoma in 1 case, double source cancer in 2 cases, and unknown source in 4 cases. The median Karnofsky Performance Scale (KPS) score was 50. LM was the initial manifestation of cancer in 34 patients. All patients had LM-related clinical symptoms, including headache in 73 cases (83.0%), nausea and vomiting in 63 cases (71.6%), abnormal physical and mental behaviors in 37 cases (42.0%), seizure in 41 cases (46.6%). Cranial nerve involvement was observed in 23 patients (39.0%) and spinal nerve involvement in 20(33.9%). There were 61 patients (83.6%) who showed neuroimaging features of LM. Tumor cells or atypical cells were found in 90.8% of patients for the first time, and activated monocytes in 47 cases (54.7%). The median OS was 13.0 weeks (95%CI:2.9-23.1) with the 1-year survival rate of 19.1%. Univariate analysis of survival indicated that lung cancer, lower KPS score, tyrosine kinase inhibitors (TKIs) and whole brain radiotherapy were favorable predictors of survival (P<0.05). Conclusions: The overall prognosis of LM is poor. Good physical condition, TKIs treatment and whole brain radiotherapy might improve clinical outcomes of LM patients.
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Affiliation(s)
- M L Zhang
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - W F Ma
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - X Y Gao
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Y Y Shi
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - H Q Liu
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Y S Jiang
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - L Z Qin
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - L P Yuan
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - W Li
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - J W Zhang
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
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Li SM, Deng WC, Cheng XH, He HB, Zhou YB, Zhou J, Hu BJ, Liu HQ, Lu SK, Li YS, Zhou XN, Ren GH. [Challenges and countermeasures of schistosomiasis control in Hunan Province in the new era]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:225-229. [PMID: 32468782 DOI: 10.16250/j.32.1374.2020051] [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] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This paper describes the current epidemic characteristics and endemic status of schistosomiasis, analyzes the main challenges of schistosomiasis control and proposes the emphasis and interventions for future schistosomiasis control activities in Hunan Province, so as to provide insights into the elimination of schistosomiasis in Hunan Province.
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Affiliation(s)
- S M Li
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - W C Deng
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - X H Cheng
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - H B He
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - Y B Zhou
- School of Public Health, Fudan University, China
| | - J Zhou
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - B J Hu
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - H Q Liu
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - S K Lu
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - Y S Li
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - X N Zhou
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, China
| | - G H Ren
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
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16
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Deng WC, Li YS, Cheng XH, Ren GH, He HB, Zhou YB, Zhang YY, Hu BJ, Liu HQ, Lu SK, Li SM, Zhou XN. [Implications, spiritual characteristics and practical significance of Chinese schistosomiasis control culture]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:222-224. [PMID: 32468781 DOI: 10.16250/j.32.1374.2020050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The culture of schistosomiasis control is specific in the history of Chinese culture. Broadly speaking, the culture of schistosomiasis control is a summary of specific social mood, social consciousness and material culture created by Chinese populations during the progress of schistosomiasis control since the founding of the People's Republic of China. Narrowly speaking, the culture of schistosomiasis control is the spiritual culture that is jointly created and nurtured by schistosomiasis control workers since the founding of the People's Republic of China. The spiritual features of Chinese schistosomiasis control culture are characterized by the patriotism and care about the people, the matter-to-fact attitude, the pioneering and enterprising spirit, and the spirit of sacrifice and dedication. The ultimate goal of the research on the culture of schistosomiasis control is to facilitate the achievement of the strategic goal of Healthy China 2030 as scheduled, accelerate the progress towards elimination of schistosomiasis, and to promote the sustainable development of schistosomiasis control in China.
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Affiliation(s)
- W C Deng
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - Y S Li
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - X H Cheng
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - G H Ren
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - H B He
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - Y B Zhou
- School of Public Health, Fudan University, China
| | - Y Y Zhang
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - B J Hu
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - H Q Liu
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - S K Lu
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - S M Li
- Hunan Institute of Parasitic Diseases, WHO Collaborating Center on Schistosomiasis Control in Lake Regions, Hunan Key Laboratory of Immunology and Transmission Control of Schistosomiasis, National Key Clinical Specialty, Yueyang 414000, China
| | - X N Zhou
- National Institute of Parasitic Diseases, Chinese Center for Diseases Control and Prevention, China
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Liu HQ, Tong XM, Han TY, Zhang H, Guo M, Zhang XF, Liu XJ, Zhang X, Zhang MT, Liu F, Bao LS, Zheng J, Tian XY, Gao Q, Zhang WX, Duan Y, Sun FF, Guo W, Li L, Xiao M, Liu WL, Jiang R. [Efficacy of minimally invasive pulmonary surfactant administration in preterm infants with neonatal respiratory distress syndrome: a multicenter clinical trial]. Zhonghua Er Ke Za Zhi 2020; 58:374-380. [PMID: 32392952 DOI: 10.3760/cma.j.cn112140-20191018-00658] [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 the feasibility and safety of minimally invasive surfactant administration (MISA) in preterm neonates with respiratory distress syndrome (NRDS). Methods: In this multicenter prospective randomized controlled trial, 92 preterm infants with gestation age ≤30 weeks and diagnosed with NRDS were enrolled in 8 level Ⅲ neonatal intensive care units (NICU) in Beijing-Tianjin-Hebei Region from 1(st) July 2017 to 31(st) December 2018. They were randomly assigned to minimally invasive surfactant administration (MISA) group or endotracheal intubation surfactant administration (EISA) group according to random number generated by computer. Infants in both groups received calf pulmonary surfactant preparation at a dose of 70-100 mg/kg. The data of demography, perinatal situation, medication administration, complications, clinical outcomes in the two groups were compared with Chi-square test, Student's t-test, Mann-Whitney U test or Fisher's exact test. Results: Among the 92 preterm infants, 53 were males, 39 were females; 47 were in the MISA group (25 males), and 45 were in the EISA group (28 males). The gestational age and birth weight were (29.5±1.2) weeks and (1 271±242) g in all patients, (29.5±1.4) weeks and (1 285±256) g in the MISA group, and (29.6±0.9) weeks and (1 255±227) g in the EISA group. The duration of surfactant infusion and the length of whole procedure in the MISA group were significantly longer than that in the EISA group (60 (18, 270) s vs. 50 (30, 60) s, Z=3.009, P=0.003; 90 (60, 300) s vs. 60 (44, 270) s, Z=3.365, P=0.001). For the outcomes, the incidence of hemodynamically significant patent ductus arteriosus (hsPDA) and bronchopulmonary dysplasia (BPD) were lower in the MISA group than in the EISA group (36% (17/47) vs. 67% (30/45), χ(2)=8.556, P=0.003; 26% (12/47) vs. 47% (21/45), χ(2)=4.464, P=0.035). Conclusions: Minimally invasive surfactant administration is applicable in preterm infants ≤30 weeks gestational age with NRDS. Although the length of whole procedure is longer than route endotracheal administration, the benefit of decreasing the incidences of hsPDA and BPD outweighs this demerit.
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Affiliation(s)
- H Q Liu
- Department of Pediatrics, Peking University Third Hospital, Beijing 100191, China
| | - X M Tong
- Department of Pediatrics, Peking University Third Hospital, Beijing 100191, China
| | - T Y Han
- Department of Pediatrics, Peking University Third Hospital, Beijing 100191, China
| | - H Zhang
- Department of Pediatrics, Peking University Third Hospital, Beijing 100191, China
| | - M Guo
- Department of Neonatology, Fifth Medical Center, General Hospital of the Chinese People's Liberation Army, Beijing 100039, China
| | - X F Zhang
- Department of Neonatology, Fifth Medical Center, General Hospital of the Chinese People's Liberation Army, Beijing 100039, China
| | - X J Liu
- Department of Neonatology, Central Hospital of China National Petroleum Corporation, Langfang 065000, China
| | - X Zhang
- Department of Neonatology, Central Hospital of China National Petroleum Corporation, Langfang 065000, China
| | - M T Zhang
- Department of Neonatology, Central Hospital of China National Petroleum Corporation, Langfang 065000, China
| | - F Liu
- Department of Neonatology, 980 Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Shijiazhuang 050082, China
| | - L S Bao
- Department of Neonatology, 980 Hospital of the Joint Logistics Support Force of the Chinese People's Liberation Army, Shijiazhuang 050082, China
| | - J Zheng
- Department of Neonatology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin 300100, China
| | - X Y Tian
- Department of Neonatology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin 300100, China
| | - Q Gao
- Department of Neonatology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin 300100, China
| | - W X Zhang
- Department of Neonatology, Tianjin Central Hospital of Obstetrics and Gynecology, Tianjin 300100, China
| | - Y Duan
- Department of Neonatology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - F F Sun
- Department of Neonatology, Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - W Guo
- Department of Neonatology, Xingtai People's Hospital, Xingtai 054001, China
| | - L Li
- Department of Neonatology, Xingtai People's Hospital, Xingtai 054001, China
| | - M Xiao
- Department of Neonatology, Cangzhou Central Hospital, Cangzhou 061001, China
| | - W L Liu
- Department of Neonatology, Cangzhou Central Hospital, Cangzhou 061001, China
| | - R Jiang
- Department of Neonatology, Cangzhou Central Hospital, Cangzhou 061001, China
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Li J, Li RJ, Zhao X, Liu HQ. The role of Sigma-1 receptor agonist in hepatic ischemiareperfusion injury. J BIOL REG HOMEOS AG 2020; 34:845-851. [PMID: 32660197 DOI: 10.23812/20-103-18] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Sigma-1 receptor (Sig-1R) is a ligand-operated protein that modulates activity of various proteins. It is expressed within the endoplasmic reticulum membranes of multiple organs. We examined the role of Sig-1R in hepatic ischemia-reperfusion injury (IRI). We studied IRI indicators in Sig-1R-/- mice and compared them with wild-type controls. In addition, we assessed the influence of Sig-1R agonist, fluvoxamine, on IRI in both types of animals. We found that Sig-1R-/- mice exhibited significantly decreased liver damage after hepatic IRI as compared to wild-type mice. This effect was manifested by decreased serum levels of alanine aminotransferase (AST), aspartate aminotransferase (ALT), myeloperoxidase (MPO), and supernatant level of lactate dehydrogenase (LDH), decreased endothelial glycocalyx shedding indexed by decreased serum levels of heparan sulfate and syndecan-1, slightly improved liver histology and reduced metalloproteinase-9 expression. Furthermore, in comparison to Sig-1R-/- mice, fluvoxamine significantly increased serum levels of AST, ALT, MPO, and LDH in wildtype animals in a dose-dependent manner at 6 h after IRI. Our findings demonstrate that the absence of Sig-1R provides a protective effect during hepatic IRI. Sig-1R-mediated signaling pathways may play distinct roles in IRI in different organs. The dynamic interaction between Sig-1R and other signaling molecules in different organs needs to be examined further.
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Affiliation(s)
- J Li
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - R J Li
- Department of Hand Surgery, The First Hospital of Jilin University, Changchun, Jilin, China
| | - X Zhao
- Department of Paediatrics, The First Hospital of Jilin University, Changchun, Jilin, China
| | - H Q Liu
- Department of Anesthesiology, The First Hospital of Jilin University, Changchun, Jilin, China
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19
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Zhao X, Li J, Liu HQ, Liu XL. [Effects of down-regulation of IGF2 gene on the biological characteristics of HCT116 colon cancer stem cells]. Zhonghua Zhong Liu Za Zhi 2019; 41:580-586. [PMID: 31434448 DOI: 10.3760/cma.j.issn.0253-3766.2019.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of down-regulation of insulin-like growth factor 2 (IGF2) gene on the biological characteristics of HCT116 colon cancer stem cells (CSCs). Methods: Flow cytometry sorting technology was used to isolate CSCs from colon cancer cell line HCT116 by a monoclonal antibody against CD133; serum free floating culture assay was used for the enrichment of CSCs. The proportion of CD133(+) cells was analyzed by flow cytometry; CSCs were identified by sphere culturing, immunofluorescence analysis and soft agar clone formation. RT-qPCR method was used to examine transcriptional level of IGF2 gene in CSCs. Western blotting was used to examine IGF2 protein expression in CSCs. siRNA was used to establish IGF2 transient knock down model in CSCs. Cell proliferation array, cell cycle and apoptosis analysis, cell invasion array and colony forming assay were used to further examine the role of IGF2 on the biological characteristics of colon CSCs. Results: CSCs were successfully isolated from HCT116 cell lines, which were cultured to form cell spheres in serum-free stem cell culture medium. We found that the morphology of sphere-forming-like cells after several passages maintained the same characteristics as that of the first passage. The results of immunofluorescence showed that CSC markers including CD133 and ALDH continued positively expressing on the cell surface of CSCs, and flow cytometry analysis showed that more than 90% of the spheroid cells remained CD133 positive. The clone formation rate of non-CSCs group and CSCs group were (28.10±2.66)% and (43.73±2.30)% respectively, with significant difference (P<0.01). The RT-qPCR results showed that the transcriptional level IGF2 gene in non-CSCs group and CSCs group were (1.06±0.24) and (2.17±0.51) respectively, with significant difference (P<0.05). The western blot results showed that the protein expression of IGF2 in CSCs group and non-CSCs group were (1.10±0.55) and (2.14±0.23) respectively, with significant difference (P<0.05). Knockdown of IGF2 significantly decreased the percentage of CD133(+) cells in CSCs and cell proliferation (P<0.01). Knockdown of IGF2 increased the percentage of G(2)/M phase (23.46% of siNC group vs 60.14% of siIGF2 group) and cell apoptosis (2.80% of siNC group vs 40.70% of siIGF2 group), while decreased the percentage of G(0)/G(1) phase (40.77% of siNC group vs 17.73% of siIGF2 group). The invasion results showed that the number of cells penetrating into the basement surface in siNC group and siIGF2 group was (109.00±16.37) and (54.00±8.19) respectively, with significant difference (P<0.01). The rate of sphere-forming of colon CSCs in siNC group and siIGF2 group were (51.70±7.42)% and (21.27±2.35)% respectively, with significant difference (P<0.01). The clone formation rate of siNC group and siIGF2 group were (37.20±3.87)% and (18.23±2.25)% respectively, with significant difference (P<0.01). Conclusion: IGF2 gene plays an important role in maintaining the biological characteristics of colon cancer stem cells and promoting self-renewal and stemness of colon CSCs.
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Affiliation(s)
- X Zhao
- Department of Pediatrics, the First Hospital of Jilin University, Changchun 130021, China
| | - J Li
- Department of Anesthesiology, the First Hospital of Jilin University, Changchun 130021, China
| | - H Q Liu
- Department of Anesthesiology, the First Hospital of Jilin University, Changchun 130021, China
| | - X L Liu
- Cancer Center, the First Hospital of Jilin University, Changchun 130021, China
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Lian H, Liu HQ, Ding WX, Wang SX, Li WM, Chu YQ, Wang YF, Jie YX. Error correction associated with stray light for Faraday-effect polarimetry system on EAST. Rev Sci Instrum 2019; 90:053501. [PMID: 31153280 DOI: 10.1063/1.5089699] [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: 01/22/2019] [Accepted: 04/27/2019] [Indexed: 06/09/2023]
Abstract
The polarimeter-interferometer system with 11 double-pass radial-view measurement chords has the ability to provide electron density and plasma current profiles, making it exceptionally useful in daily operation on the Experiment Advanced Superconducting Tokamak. However, due to limited optical access and intrinsic feedback, the stray lights arising from spurious reflections along the optical path (unwanted reflections from various optical components/mounts and transmissive optical elements such as windows, waveplates, and lenses as well as the detectors) distort the Faraday rotation measurements. Furthermore, the feedback light from the retro-reflector which is used to realize the double-pass configuration makes it even worse. A data processing approach to decrease the stray light influence is reported in this paper. Based on the theoretical model developed, the Faraday rotation angle is extracted by subtracting the deviation term which can be calculated with a simplified model. With this approach, the Faraday rotation oscillation during density ramp-up can be reduced from 2°-5° to 0.5°-1.5°, which reduces the Faraday rotation measurement errors significantly.
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Affiliation(s)
- H Lian
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - W X Ding
- University of Science and Technology of China, Hefei, Anhui 230026, China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - Y Q Chu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - Y F Wang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, China
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21
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Han F, Liu HQ, Wang SY. [Expression of CD117, MITF and NAT10 and their prognostic values in sinonasal mucosal melanoma]. Zhonghua Bing Li Xue Za Zhi 2019; 47:931-935. [PMID: 30522174 DOI: 10.3760/cma.j.issn.0529-5807.2018.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the correlation between the expression of CD117, MITF, NAT10 and clinical parameters in sinonasal mucosal melanoma (SNMM). Methods: Formalin-fixed paraffin-embedded tumor specimens of 80 cases of SNMM at the Eye, Ear, Nose and Throat Hospital, Fudan University, from December 1999 to November 2013 were analyzed for CD117, MITF and NAT10 expression by immunohistochemistry. Results: There were 40 men and 40 women. The median age was 61 years, age 26 to 85 years. There was no correlation of the expression of CD117, MITF and NAT10 with the patients' age, gender, tumor site, stage, therapy method and brain metastases (P>0.05). The expression of MITF and NAT10 was associated with lymph node metastasis and the tumors were more likely to metastasize when MITF and NAT10 were positive. However, expression of CD117 had no correlation with lymph node metastasis. Log-rank test revealed that the expression of CD117 was correlated with both three-year and five survival rate (P=0.012, P=0.023; respectively) and patients with tumor having low expression of CD117 had the worse outcome. COX test revealed that low CD117 expression, advanced age and lymph node metastasis were independent risk factors (P<0.05). No significant association was found between the expression of CD117, MITF and NAT10 with disease free survival (P>0.05). Conclusions: Patients with SNMM expressing low level of CD117 have decreased survival rate. Tumors with high level of MITF and NAT10 expression are more likely to metastasize. The expression level of CD117 can be used as an important indicator for the patient survival, and the expression of MITF and NAT10 can be used as a predictor of tumor metastasis.
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Affiliation(s)
- F Han
- Department of Pathology, Eye, Ear, Nose and Throat Hospital, Fudan University, Shanghai 200031, China
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22
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Li WM, Liu HQ, Zeng L, Wang SX, Lian H, Yang Y, Wei XC, Zhang Y, Li MG. Bench test of phase measurement on dispersion interferometer for EAST. Rev Sci Instrum 2019; 90:026105. [PMID: 30831737 DOI: 10.1063/1.5058705] [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: 09/18/2018] [Accepted: 02/05/2019] [Indexed: 06/09/2023]
Abstract
In recent years, different traditional interferometers have been the necessary diagnostic of electronic density measurement on fusion devices. Until now, two main problems always influence the density measurement: the mechanical vibration and fringe jump in the calculation. The dispersion interferometer (DI) with a long-wavelength infrared wavelength is a good choice because mechanical vibrations can be canceled and the fringe jump can be inhibited. This paper describes the bench test of phase measurement using a wedge instead of plasma on the DI. The results show good agreement with the theoretical calculations. In the background measurement, this DI without a vibration isolation system has good performance, and the drift of the baseline is less than 2 × 1017 m-2 in 3 s and less than 5 × 1017 m-2 in 400 s. Plasma data will be obtained during the next campaign on EAST (Experimental and Advanced Superconducting Tokamak).
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Affiliation(s)
- W M Li
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - H Q Liu
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - L Zeng
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - S X Wang
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - H Lian
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Y Yang
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - X C Wei
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - Y Zhang
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
| | - M G Li
- Institute of Plasma Physics Chinese Academy of Sciences, Hefei, Anhui 230031, China
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23
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Ding WX, Liu HQ, Qian JP, Brower DL, Xiao BJ, Chen J, Zou ZY, Jie YX, Luo ZP, Gong XZ, Hu LQ, Wan BN. Non-inductive vertical position measurements by Faraday-effect polarimetry on EAST tokamak. Rev Sci Instrum 2018; 89:10B103. [PMID: 30399951 DOI: 10.1063/1.5035280] [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: 04/13/2018] [Accepted: 05/18/2018] [Indexed: 06/08/2023]
Abstract
Vertical instability control in an elongated plasma is highly desirable for a tokamak reactor. A multi-channel 694 GHz far-infrared laser-based polarimeter-interferometer system has been used to provide a non-inductive vertical position measurement in the long-pulse EAST tokamak. A detailed comparison of vertical position measurements by polarimetry and external inductive flux loops has been used to validate Faraday-effect polarimetry as an accurate high-time response vertical position sensor.
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Affiliation(s)
- W X Ding
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
| | - J P Qian
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
| | - D L Brower
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - B J Xiao
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
| | - J Chen
- Department of Physics and Astronomy, University of California, Los Angeles, California 90095, USA
| | - Z Y Zou
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
| | - Z P Luo
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
| | - X Z Gong
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
| | - L Q Hu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
| | - B N Wan
- Institute of Plasma Physics, Chinese Academy of Science, Hefei 230031, China
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24
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Liu HQ, Liu L, Mei WL, Wang C, Zhang JW, Huang Y. [Neuroimaging characteristics of cryptogenic stroke with and without patent foramen ovale]. Zhonghua Yi Xue Za Zhi 2018; 98:2636-2640. [PMID: 30220150 DOI: 10.3760/cma.j.issn.0376-2491.2018.33.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To explore the neuroimaging characteristics associated with the presence of patent foramen ovale(PFO) for patients with cryptogenic stroke. Methods: We retrospectively collected the clinical and imaging data of cryptogenic stroke patients with PFO and without PFO from Henan Province People's Hospital from January 1, 2013 to June 30, 2017. Lesion patterns and pertinent vascular territory were compared between the two groups. Multivariate logistic regression analysis was used to explore the independent predictors for the presence of PFO. Results: A total of 54 cryptogenic stroke patients with PFO and 50 cases without PFO were recruited. Compared with PFO(-) stroke group, more patients in PFO(+ ) stroke group had migraine(P=0.036), and patients in PFO(+ ) stroke group had higher Risk of Paradoxical Embolism(RoPE) score(P=0.030). The lesion pattern of PFO(+ ) stroke was more frequently observed as multiple lesions in multicirculatory (P=0.035), and infarcts were more likely to be distributed in the vertebrobasilar artery territory (P=0.041); the most frequently involved vessel was the posterior cerebral artery region (P=0.006). More patients with PFO(+ ) stroke had old silent stroke lesion(P=0.021). On multivariate analysis, infarction distributed in the posterior cerebral artery region(OR=4.292, 95% CI 1.469-12.543, P=0.008), silent stroke lesion (OR=6.688, 95% CI 1.277-35.029, P=0.024), and high RoPE score (OR=1.393, 95% CI 1.026-1.893, P=0.034) were independent parameters that could predict the presence of PFO. Conclusions: Multiple lesions in multicirculatory and the posterior predominance are neuroimaging characteristics of cryptogenic stroke with PFO. Infarction distributed in the posterior cerebral artery region, silent stroke lesion and high RoPE score are independent predictors of the presence of PFO.
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Affiliation(s)
- H Q Liu
- Department of Neurology, Henan Provincial People's Hospital, Zhengzhou 450003, China
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25
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Zhang QA, Yang XH, Chen D, Yan X, Jing FC, Liu HQ, Zhang R. miR-34 increases in vitro PANC-1 cell sensitivity to gemcitabine via targeting Slug/PUMA. Cancer Biomark 2018; 21:755-762. [PMID: 29355113 DOI: 10.3233/cbm-170289] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
miR-34 was deregulated in tumor tissues compared with corresponding noncancerous tissue samples. Furthermore, miR-34 may contribute to cancer-stromal interaction associated with cancer progression. However, whether miR-34 could decrease chemoresistance of cancer cells to chemotherapeutic agent remains unclear. In our study, we examined whether overexpression of miR-34 could sensitize gemcitabine -mediated apoptosis in human pancreatic cancer PANC-1 cells. We found that miR-34 markedly induced gemcitabine -mediated apoptosis in PANC-1 cells. miR-34 induced down-regulation of Slug expression and upregulation of p53 up-regulated modulator of apoptosis (PUMA) expression. The over-expression of Slug or downregulation of PUMA by Slug cDNA or PUMA siRNA transfection markedly blocked miR-34-induced gemcitabine sensitization. Furthermore, miR-34 induced PUMA expression by downregulation of Slug. Taken together, our study demonstrates that miR-34 enhances sensitization against gemcitabine-mediated apoptosis through the down-regulation of Slug expression, and up-regulation of Slug-dependent PUMA expression.
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Affiliation(s)
- Qing-An Zhang
- Department of Clinical Laboratory, The Central Hospital of Linyi, Yishui, Shandong, China.,Department of Clinical Laboratory, The Central Hospital of Linyi, Yishui, Shandong, China
| | - Xu-Hai Yang
- Department of Oncology, Yantaiyuhuangding Hospital, Yantai, Shandong, China
| | - Dong Chen
- Department of General Surgery, The Affiliated Hospital of Qingdao University, Qingdao,Shandong, China
| | - Xiang Yan
- Department of Oncology, Yantaiyuhuangding Hospital, Yantai, Shandong, China
| | - Fu-Chun Jing
- Department of Gastroenterology, Taian Central Hospital, Taian, Shandong, China
| | - Hong-Qian Liu
- Department Pharmacy, The Central Hospital of Linyi, Yishui, Shandong, China
| | - Ronghua Zhang
- Department of Clinical Laboratory, The Central Hospital of Linyi, Yishui, Shandong, China
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Li R, Chen FF, Liu HQ, Wang ZX, Zhang ZT, Wang Y, Cui H, Liu W, Zhao XZ, Sun ZJ, Guo SS. Efficient Capture and High Activity Release of Circulating Tumor Cells by Using TiO 2 Nanorod Arrays Coated with Soluble MnO 2 Nanoparticles. ACS Appl Mater Interfaces 2018; 10:16327-16334. [PMID: 29683641 DOI: 10.1021/acsami.8b04683] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Effective capture and release of circulating tumor cells (CTCs) with high viability is still a challenge in medical research. We design a novel approach with efficient yield and high cell activity for the capture and release of CTCs. Our platform is based on TiO2 nanorod arrays coated with transparent MnO2 nanoparticles. We use hydrothermal synthesis to prepare TiO2 nanorod arrays, the MnO2 nanoparticles are fabricated through in situ self-assembly on the substrate to form a monolayer and etched by oxalic acid with low concentration at room temperature. Up to 92.9% of target cells are isolated from the samples using our capture system and the captured cells can be released from the platform, the saturated release efficiency is 89.9%. Employing lower than 2 × 10-3 M concentration of oxalic acid to dissolve MnO2, the viability of MCF-7 cancer cells exceed 90%. Such a combination of the two-dimensional and three-dimensional platforms provides a new approach isolate CTCs from patient blood samples.
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Affiliation(s)
- R Li
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology , Wuhan University , Wuhan , 430072 Hubei , P. R. China
| | - F F Chen
- Department of Oncology, Hubei Cancer Clinical Study Center, Hubei Key Laboratory of Tumor Biological Behaviors , Zhongnan Hospital of Wuhan University , Wuhan , Hubei 430072 , P. R. China
| | - H Q Liu
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology , Wuhan University , Wuhan , 430072 Hubei , P. R. China
| | - Z X Wang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology , Wuhan University , Wuhan , 430072 Hubei , P. R. China
| | - Z T Zhang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology , Wuhan University , Wuhan , 430072 Hubei , P. R. China
| | - Y Wang
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology , Wuhan University , Wuhan , 430072 Hubei , P. R. China
| | - H Cui
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology , Wuhan University , Wuhan , 430072 Hubei , P. R. China
| | - W Liu
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology , Wuhan University , Wuhan , 430072 Hubei , P. R. China
| | - X Z Zhao
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology , Wuhan University , Wuhan , 430072 Hubei , P. R. China
| | - Z J Sun
- State Key Laboratory Breeding Base of Basic Science of Stomatology, Key Laboratory of Oral Biomedicine of Ministry of Education, Department of Oral Maxillofacial Head Neck Oncology, School and Hospital of Stomatology , Wuhan University , Wuhan , Hubei 430079 , China
| | - S S Guo
- Key Laboratory of Artificial Micro- and Nano-Structures of Ministry of Education, School of Physics and Technology , Wuhan University , Wuhan , 430072 Hubei , P. R. China
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Liao H, Zhu HM, Liu HQ, Li LP, Liu SL, Wang H. Two novel variants of the PHEX gene in patients with X‑linked dominant hypophosphatemic rickets and prenatal diagnosis for fetuses in these families. Int J Mol Med 2018; 41:2012-2020. [PMID: 29393334 PMCID: PMC5810233 DOI: 10.3892/ijmm.2018.3402] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 01/05/2018] [Indexed: 11/06/2022] Open
Abstract
X-linked hypophosphatemic rickets (XLHR; OMIM 307800) is an X-linked dominant disorder caused by mutations in the phosphate-regulating neutral endopeptidase homolog X-linked (PHEX) gene, which is located at Xp22.11. In the present study, two novel variants of the PHEX gene were identified in two unrelated families with XLHR by directly sequencing all 22 exon regions and intron/exon boundaries of the PHEX gene. One missense variant, NM_000444.5: c.1721T>A, was identified in exon 17 of the PHEX gene in Family 1, which led to an amino acid change in the p.Ile574Lys protein. The other splicing variant identified was NM_000444.5: c.591A>G, in exon 5 in Family 2, resulting in a deletion of 77 bp in the 3′ site of exon 5 during splicing, which was verified by direct cDNA sequencing of the PHEX gene. According to the results of reverse transcription-quantitative polymerase chain reaction analysis, the affected male with the splicing variant c.591A>G showed normal gene expression of PHEX, whereas the affected female exhibited low gene expression, compared with normal females. Based on these findings, prenatal diagnoses were made for the fetuses with a family history of XLHR using the backup amniotic fluid samples. One fetus without the missense variant was confirmed to be a healthy girl in a follow-up visit 1 month following birth.
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Affiliation(s)
- Hong Liao
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Hong-Mei Zhu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Hong-Qian Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Ling-Ping Li
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Shan-Ling Liu
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - He Wang
- Department of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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Zou ZY, Liu HQ, Ding WX, Chen J, Brower DL, Lian H, Wang SX, Li WM, Yao Y, Zeng L, Jie YX. Effects of stray lights on Faraday rotation measurement for polarimeter-interferometer system on EAST. Rev Sci Instrum 2018; 89:013510. [PMID: 29390693 DOI: 10.1063/1.5012820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A double-pass radially view 11 chords polarimeter-interferometer system has been operated on the experimental advanced superconducting tokamak and provides important current profile information for plasma control. Stray light originating from spurious reflections along the optical path (unwanted reflections from various optical components/mounts and transmissive optical elements such as windows, waveplates, and lens as well as the detectors) and also direct feedback from the retro-reflector used to realize the double-pass configuration can both contribute to contamination of the Faraday rotation measurement accuracy. Modulation of the Faraday rotation signal due to the interference from multiple reflections is observable when the interferometer phase (plasma density) varies with time. Direct reflection from the detector itself can be suppressed by employing an optical isolator consisting of a λ/4-waveplate and polarizer positioned in front of the mixer. A Faraday angle oscillation during the density ramping up (or down) can be reduced from 5°-10° to 1°-2° by eliminating reflections from the detector. Residual modulation arising from misalignment and stray light from other sources must be minimized to achieve accurate measurements of Faraday rotation.
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Affiliation(s)
- Z Y Zou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W X Ding
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - J Chen
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - D L Brower
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - H Lian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y Yao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Zeng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
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Gu WJ, Liu HQ, Yao WK, Yu H. [A case of hamartoma of the root tounge in a newborn]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 52:944-945. [PMID: 29262457 DOI: 10.3760/cma.j.issn.1673-0860.2017.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- W J Gu
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Jilin University, Changchun 130021, China
| | - H Q Liu
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Jilin University, Changchun 130021, China
| | - W K Yao
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Jilin University, Changchun 130021, China
| | - H Yu
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Jilin University, Changchun 130021, China
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30
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Liu HQ, Zou BQ, Wang SY. [Expression and prognostic values of PD-1, PD-L1 and IDO-1 in sinonasal malignant mucosal melanoma]. Zhonghua Bing Li Xue Za Zhi 2017; 46:782-788. [PMID: 29136692 DOI: 10.3760/cma.j.issn.0529-5807.2017.11.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the correlation between the expression of programmed death-1(PD-1), PD ligand-1(PD-L1), indoleamine 2, 3-dioxygenase 1(IDO-1) and clinical parameters in sinonasal malignant mucosal melanoma (SNM). Methods: Samples from 86 SNM patients who did not receive immune-targeted therapy and radio-chemotherapy were analyzed for PD-1, PD-L1, and IDO-1 expression by immunohistochemistry. Results: High clinical/pathologic staging, brain metastases and advanced age were independent risk factors of poor prognosis. The overall survival rate of SNM without pigment was lower than that with pigment. PD-1, PD-L1 and IDO-1 expression was not correlated with tumor pigmentation, but correlated with different primary site.PD-1, PD-L1 and IDO-1 were expressed in 47.6% (41/86), 53.5% (46/86) and 58.1% (50/86)of SNM samples respectively. PD-1 was associated with brain metastasis. Negative expression of PD-1(P=0.031) and IDO-1(P=0.017 9) correlated with worse disease-free survival. No significant association was found between PD-L1 and prognosis. For stages Ⅲ, ⅣA and ⅣB patients, PD-1 expression was associated with better outcome (P=0.025), but PD-L1 negative and IDO-1 positive patients hadworse outcome (P>0.05). PD-1 positive and IDO-1 negative stage ⅣC patients had poorer overall survival. Conclusions: In SNM patients, clinical/pathologic staging, brain metastases, age and pigmentation were prognostic indicator. IDO-1 and PD-1 can also be used as reference to evaluate prognosis. Anti-IDO-1 targeted therapy may be suitable for middle to late stage patients, while advanced stage patients might benefit from anti-PD-1 targeted therapy. PD-1/PD-L1 and IDO-1 may be considered as joint targeted therapy.The predictive value of PD-L1 requires further study.
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Affiliation(s)
- H Q Liu
- Department of Pathology, Eye, Ear, Nose and Throat Hospital, Shanghai Medical College, Fudan University, Shanghai 200031, China
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Chen L, Liu HQ, Yang F, Liu Y, Zhang ZX, Liu ZG, Li RJ. Small incision releasing of transverse carpal ligament in diagnosis and treatment of mild carpal tunnel syndrome. J BIOL REG HOMEOS AG 2017; 31:673-678. [PMID: 28956416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Carpal tunnel syndrome (CTS) is a medical condition due to compression of the median nerve as it travels through the wrist at the carpal tunnel. Few studies have been carried out to examine the effectiveness of mini-open technique for carpal tunnel release using minor wrist skin crease incision in patients with mild CTS. Therefore, the present study was designed to improve the neurophysiological parameters for the diagnosis of mild CTS, and to examine the effectiveness of small incision surgery for the clinical treatment of mild CTS. To this end, we applied the electrophysiological diagnosis of difference between median and ulnar palmar latencies (PMPU) and the difference of median and ulnar latencies from D4 stimulation (D4MD4U) in 80 patients with mild CTS, whom were diagnosed by hand surgeon at the First Hospital of Jilin University. Those patients showed normal in median nerve electrophysiological examination, and received minor wrist skin crease incision surgery. All patients were followed up and received electromyography (EMG) examination. We showed that D4MD4U and PMPU methods are sensitive diagnosis methods for mild CTS, and mini-open wrist crease incision is beneficial for the treatment of mild CTS in clinical settings.
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Affiliation(s)
- L Chen
- Department of Hand Surgery, The First Hospital of Jilin University, Jilin, China
| | - H Q Liu
- Department of Anesthesiology, The First Hospital of Jilin University, Jilin, China
| | - F Yang
- Department of Pediatric surgery, The First Hospital of Jilin University, Jilin, China
| | - Y Liu
- Department of Hand Surgery, The First Hospital of Jilin University, Jilin, China
| | - Z X Zhang
- Department of Hand Surgery, The First Hospital of Jilin University, Jilin, China
| | - Z G Liu
- Department of Hand Surgery, The First Hospital of Jilin University, Jilin, China
| | - R J Li
- Department of Hand Surgery, The First Hospital of Jilin University, Jilin, China
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Zhang YX, Yang HL, Wu YY, Wang CC, Gao XY, Shi YY, Liu HQ, Huang Y, Zhang JW. [Clinical analysis of 9 cases with Anti-leucine-rich glioma inactivated 1 protein antibody associated limbic encephalitis]. Zhonghua Yi Xue Za Zhi 2017; 97:1295-1298. [PMID: 28482428 DOI: 10.3760/cma.j.issn.0376-2491.2017.17.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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: This study was to describe the clinical characteristics of Anti-leucine-rich glioma inactivated 1 protein(LGI1) antibody associated limbic encephalitis. Methods: Clinical data including clinical features, laboratory and radiological findings, treatment and prognosis of the 9 patients were analyzed. Results: In all 9 cases, 6 cases experienced epileptic seizure, 5 cases had psychosis, 7 cases presented with memory impairment, 4 cases showed faciobrachial dystonic seizure, 2 had refractory hyponatremia. One case presented with typically acute Guillain-Barre syndrome (GBS). Anti-LGI1 antibody was detected in 6 cases in cerebrospinal fluid (CSF) samples and 9 in serum samples. Seven cases out of 9 had brain imaging abnormalities. All 9 cases found no evidence of tumors. Eight cases were given immune therapy. During a 1-16 months follow-up, 1 case had complete recovery, 5cases had various degree of sequelae , among whom 4 had memory disturbance and 1 case had changed personality. 2cases were lost to follow-up. Conclusions: Limbic encephalitis is the most common manifestation of anti-LGI1 antibody associated encephalitis. Faciobrachial dystonic seizure (FBDS) is a specific symptom which favors an early diagnosis. Tumor is uncommon to see. The disease has a relatively favorable prognosis while impaired memory can be seen as a common sequelae.
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Affiliation(s)
- Y X Zhang
- Department of Neurology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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Hu T, Zhang Z, Wang JM, Liu HQ, Liu ZY, Wang H, Liu SL. [Clinical Application of Chromosomal Microarray Analysis in Karyotyping with Uncertain Genomic Rearrangement]. Sichuan Da Xue Xue Bao Yi Xue Ban 2017; 48:460-463. [PMID: 28616926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVES To apply chromosomal microarray analysis (CMA) in the diagnosis of karyotyping with uncertain genomic rearrangement. METHODS We retrospectively reviewed 48 samples (34 samples of amniotic fluid, 14 samples of peripheral blood) of karyotype analyses with uncertain genomic rearrangement in patients admitted to our department from September 2014 to April 2016. The CMA results were compared with those of karyotyping. RESULTS The 48 samples consisted of 13 samples with marker chromosomes, 19 samples with derivative chromosomes, and 16 samples with balanced translocation. Sixteen cases (33.33%) were detected with abnormalities by CMA. In the 32 samples with marker chromosomes or derivative chromosomes, 16 cases were detected with deletions or duplications (>5 Mb) by CMA, including 1 case 21-trisomy, 2 cases XYY syndrome and 3 cases microdeletion/ microduplication syndromes (22q11 duplication syndrome, Wolf-Hirschhorn syndrome and 15q26 overgrowth syndrome). In the 16 balanced translocation cases, all revealed negative results in CMA. CONCLUSIONS CMA can confirm the karyotyping with uncertain genomic rearrangement and clarify its clinical significance.
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Affiliation(s)
- Ting Hu
- Department of Obstetric and Gynecologic, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Zhu Zhang
- Department of Obstetric and Gynecologic, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Jia-Min Wang
- Department of Obstetric and Gynecologic, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Hong-Qian Liu
- Department of Obstetric and Gynecologic, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Zhi-Ying Liu
- Department of Obstetric and Gynecologic, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - He Wang
- Department of Obstetric and Gynecologic, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China
| | - Shan-Ling Liu
- Department of Obstetric and Gynecologic, West China Second University Hospital, Sichuan University, Chengdu 610041, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, China
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Huang Y, Mei WL, Liu HQ, Li YL, Chen ZZ, Li DD, Zhang JW. [Diagnostic value of clot burden score of susceptibility vessel sign in arterial thrombosis of acute ischemic stroke and its association with prognosis]. Zhonghua Yi Xue Za Zhi 2017; 97:7-11. [PMID: 28056282 DOI: 10.3760/cma.j.issn.0376-2491.2017.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Objective: To analysis the value of susceptibility vessel sign (SVS) in susceptibility weighted imaging (SWI) in detecting thrombogenesis in middle cerebral artery (MCA) and its association with clinical prognosis. Methods: From December 2014 to December 2015 in People's Hospital of Zhengzhou University, we retrospectively examined clinical, imaging and experimental datafrom 104 consecutive patients with acute ischemic strokeand compared the consistency of detecting thrombus between SWI and magnetic resonance angiography (MRA) using Kappa analysis. Clot Burden Score (CBS) was used to analysis extent and scope of thrombus. The association between CBS and clinical prognosiswere analyzed by Spearman rank correlation. Results: Mean age was 60 years old of the 104 patients with acute cerebral infarction and female accounted for 32%. There were 39 patients (37.5%) with SVS positive in SWI and 32 patients (30.8%) with both SVS positive and MRA occlusion or severe stenosis. The consistency in predicting arterial thrombosis of occlusion or severe stenosis between MRA and SVS in SWI was statistically significant (Kappa=0.502, P<0.001). There were 6 cases with SVS positive and none stenosis in MRA, and all the clots in this 6 case were located in distal artery. CBS was significantly associated with 3-month outcome (Spearman ρ =-0.472; P<0.001). Conclusion: SWI is superior to MRA for the detection of intracranial distal thrombus in patients with acute ischemic stroke of the MCA territory. Higher clot burden(lower CBS) could be an important clinical tool to estimate poor outcome in patients with acutecerebral infarction.
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Affiliation(s)
- Y Huang
- Department of Neurology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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Liu HQ, Qian JP, Jie YX, Ding WX, Brower DL, Zou ZY, Li WM, Lian H, Wang SX, Yang Y, Zeng L, Lan T, Yao Y, Hu LQ, Zhang XD, Wan BN. Initial measurements of plasma current and electron density profiles using a polarimeter/interferometer (POINT) for long pulse operation in EAST (invited). Rev Sci Instrum 2016; 87:11D903. [PMID: 27910346 DOI: 10.1063/1.4963378] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A double-pass, radially viewing, far-infrared laser-based POlarimeter-INTerferometer (POINT) system utilizing the three-wave technique has been implemented for diagnosing the plasma current and electron density profiles in the Experimental Advanced Superconducting Tokamak (EAST). POINT has been operated routinely during the most recent experimental campaign and provides continuous 11 chord line-integrated Faraday effect and density measurement throughout the entire plasma discharge for all heating schemes and all plasma conditions (including ITER relevant scenario development). Reliability of both the polarimetric and interferometric measurements is demonstrated in 25 s plasmas with H-mode and 102 s long-pulse discharges. Current density, safety factor (q), and electron density profiles are reconstructed using equilibrium fitting code (EFIT) with POINT constraints for the plasma core.
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Affiliation(s)
- H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - J P Qian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W X Ding
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - D L Brower
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - Z Y Zou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - H Lian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y Yang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Zeng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - T Lan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y Yao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Q Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - X D Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - B N Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
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Zou ZY, Liu HQ, Li WM, Lian H, Wang SX, Yao Y, Lan T, Zeng L, Jie YX. Optical configuration optimization and calibration for the POINT system on EAST. Rev Sci Instrum 2016; 87:11E121. [PMID: 27910327 DOI: 10.1063/1.4961272] [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] [Indexed: 06/06/2023]
Abstract
Calibration of the polarimeter system is one of the key elements to determine the overall measurement accuracy. The anisotropic reflection and transmission properties of the mesh beam splitters can easily distort the polarization state of the circularly polarized beams. Using a rotating crystal quartz λ/2-waveplate to replace the plasma can effectively allow us to obtain the ratio of the measured Faraday rotation angle to the known rotation angle of the waveplate. This ratio is used to estimate the calibration factor for each chord to be accurately determined and help to minimize distortions introduced by the wire-mesh beam splitters. With the novel configuration optimization, the distortion of polarization state is effectively eliminated.
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Affiliation(s)
- Z Y Zou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - H Lian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - S X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y Yao
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - T Lan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Zeng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
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Hong XP, Xu D, Zhuo Y, Liu HQ, Lu LQ. Identification and pathogenicity of Vibrio parahaemolyticus isolates and immune responses of Penaeus (Litopenaeus) vannamei (Boone). J Fish Dis 2016; 39:1085-1097. [PMID: 26763100 DOI: 10.1111/jfd.12441] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Revised: 10/21/2015] [Accepted: 10/22/2015] [Indexed: 06/05/2023]
Abstract
Five different Vibrio parahaemolyticus strains (SH8, SH108, SH58, AH5 and GD10) isolated from the hepatopancreas of moribund shrimp in farms of mainland China were identified and capable of inducing massive mortality of Penaeus (Litopenaeus) vannamei. The immersion challenge results with five isolates indicated variance of virulence, while only GD10 caused massive sloughing of tubule epithelial cells which was recognized as the most significant symptom of AHPND. Differences in immune responses were detected of P. vannamei during 48 h post-infection (p.i.) by injection or immersion challenge with V. parahaemolyticus (SH8, SH108 and GD10) isolates. When injected SH8 and SH108 isolates, the expression of lysozyme (LSZ) showing statistically significant upregulation at 16 and 48 h p.i. and that of Toll-like receptors (TLR) showed statistically significant upregulation at 48 h p.i. When immersion challenge with the GD10 isolate, TLR were upregulated after 8 h p.i. challenge with 10(4) cfu mL(-1) ; however, LSZ was downregulated when challenged with 10(3) cfu mL(-1) . The results suggested that LSZ and TLR serve as crucial molecular markers of innate immunity in shrimp against V. parahaemolyticus infection. LSZ is a vital marker for acute bacterial infection, while TLR serves as a crucial marker for chronic infection.
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Affiliation(s)
- X P Hong
- Key Laboratory of Aquatic Genetic Resources of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - D Xu
- Key Laboratory of Aquatic Genetic Resources of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - Y Zhuo
- Key Laboratory of Aquatic Genetic Resources of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - H Q Liu
- Key Laboratory of Aquatic Genetic Resources of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
| | - L Q Lu
- Key Laboratory of Aquatic Genetic Resources of the Ministry of Agriculture, Shanghai Ocean University, Shanghai, China
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Liu HZ, Liu XM, Liu XC, Zhang CZ, Liu HQ. Co-suppression of vitamin C composite nano-drug carrier and its drug delivery to nidus in tumor cells. J BIOL REG HOMEOS AG 2016; 30:373-380. [PMID: 27358123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This study aimed to discuss the co-suppression of vitamin C-contained composite nano-drug carrier and its drug delivery to nidus in tumor cells. Amphiphilic polymers PLA-block-PAAA and block polymer PLA-PEG4000-Maleimide, PLA-block-PAAA and PLA-PEG4000-Maleimide composite nano-micelles were prepared, and, PLA-block-PAAA polymer-coated Nile red nano-micelle, PLA-block-PAA and PLA-PEG4000-Maleimide composite nano-micelles as well as paclitaxel-carrying composite nano-micelle in different molar ratios were given stability tests. Lastly, PLA-block-PAAA and PLA-PEG4000-Maleimide composite nano-micelle cancer cells and paclitaxel-carrying composite nano-micelle cancer cells were given toxicity tests. Stability tests showed that self stability of PLA-block-PAAA (63/8) nano-micelle was not sufficient; the stability was good when the molar ratio of PLA-block-PAAA and PLA-PEG4000-Maleimide composite nano-micelle was 3:1; paclitaxel-carrying composite nano-micelle had good stability within 48 hours; PAAA segment had an inhibiting effect on C6 cancer cells and paclitaxel-carrying composite nano-micelle had a strong inhibiting effect also on tumors. After 24 hours, with the continuous release of paclitaxel, the tumor inhibiting effect of paclitaxel-carrying composite nano-micelle enhanced gradually, and the controlled-release of drugs had continuous inhibiting effect on tumor cells. Therefore, PAAA segment and paclitaxel had time-postponed synergistic effect. In conclusion, vitamin C-contained composite nanometer drug carrier materials can deliver anti-cancer drugs to nidus and thus inhibit tumor cells.
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Affiliation(s)
- H Z Liu
- Deparment of Pharmacy, Jining No.1 Peoples Hospital, Jining, China
| | - X M Liu
- Department of Clinical Laboratory, Jining No. 1 Peoples Hospital, Jining, China
| | - X C Liu
- Deparment of Pharmacy, Jining No.1 Peoples Hospital, Jining, China
| | - C Z Zhang
- Department of Pharmacy, Jining Municipal Authority Hospital, Jining, China
| | - H Q Liu
- Deparment of Pharmacy, Jining No.1 Peoples Hospital, Jining, China
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Gui Z, Liu HQ, Wang Y, Yuan QH, Xin N, Zhang X, Li XL, Pi YS, Gao JM. Detection of the genetic variation of polygalacturonase-inhibiting protein gene 2 in autotetraploid alfalfa (Medicago sativa) using an improved SSCP technique. Genet Mol Res 2014; 13:10184-93. [PMID: 25501230 DOI: 10.4238/2014.december.4.13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In this study, 2 approaches were adopted to obtain good single-strand conformation polymorphism (SSCP) data for autotetraploid alfalfa; primers were added to PCR products, and fluorescent-labeled primers were utilized. PCR-SSCP conditions for a 331-bp fragment in the coding region of polygalacturonase-inhibiting protein gene 2 in alfalfa (MsPGIP2) were optimized, and the results showed that the best SSCP gel pattern could be obtained when the loading mixture was made by mixing 1 μL PCR products, 0.2 to 0.8 μL unlabeled primers (50 μM) and 4 to 16 μL loading buffer. Furthermore, the use of the fluorescent-labeled primers resulted in 2 separated electrophoresis images from 2 complementary single DNA strands, thus making the determination of alleles and idiotypes a relatively easy task. In addition, the results of sequencing prove that the determination of alleles and idiotypes were accurate based on SSCP analysis. Finally, a total of 9 alleles with 18 SNP sites were identified for MsPGIP2 in the alfalfa variety 'Algonquin'. In conclusion, MsPGIP2 possessed great genetic variation, and the addition of primers to the PCR products in combination with the fluorescent labeling of primers could significantly improve the sensitivity and resolution of SSCP analysis. This technique could be used for genetic diversity detection and marker-assisted breeding of useful genes in autopolyploid species such as alfalfa.
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Affiliation(s)
- Z Gui
- Key Laboratory of Crop Genetics and Breeding, Department of Agronomy, Tianjin Agricultural University, Tianjin, China
| | - H Q Liu
- Key Laboratory of Crop Genetics and Breeding, Department of Agronomy, Tianjin Agricultural University, Tianjin, China
| | - Y Wang
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, China
| | - Q H Yuan
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, China
| | - N Xin
- Key Laboratory of Crop Genetics and Breeding, Department of Agronomy, Tianjin Agricultural University, Tianjin, China
| | - X Zhang
- Key Laboratory of Crop Genetics and Breeding, Department of Agronomy, Tianjin Agricultural University, Tianjin, China
| | - X L Li
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, China
| | - Y S Pi
- Key Laboratory of Crop Genetics and Breeding, Department of Agronomy, Tianjin Agricultural University, Tianjin, China
| | - J M Gao
- Key Laboratory of Crop Genetics and Breeding, Department of Agronomy, Tianjin Agricultural University, Tianjin, China
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Yang Y, Li GS, Liu HQ, Jie YX, Ding WX, Brower DL, Zhu X, Wang ZX, Zeng L, Zou ZY, Wei XC, Lan T. Design of vibration compensation interferometer for Experimental Advanced Superconducting Tokamak. Rev Sci Instrum 2014; 85:11D404. [PMID: 25430167 DOI: 10.1063/1.4886455] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A vibration compensation interferometer (wavelength at 0.532 μm) has been designed and tested for Experimental Advanced Superconducting Tokamak (EAST). It is designed as a sub-system for EAST far-infrared (wavelength at 432.5 μm) poloarimeter/interferometer system. Two Acoustic Optical Modulators have been applied to produce the 1 MHz intermediate frequency. The path length drift of the system is lower than 2 wavelengths within 10 min test, showing the system stability. The system sensitivity has been tested by applying a periodic vibration source on one mirror in the system. The vibration is measured and the result matches the source period. The system is expected to be installed on EAST by the end of 2014.
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Affiliation(s)
- Y Yang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - G S Li
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - W X Ding
- Department of Physics and Astronomy, University of California at Los Angeles, Los Angeles, California 90095, USA
| | - D L Brower
- Department of Physics and Astronomy, University of California at Los Angeles, Los Angeles, California 90095, USA
| | - X Zhu
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - Z X Wang
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - L Zeng
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - Z Y Zou
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - X C Wei
- Institute of Plasma Physics, Chinese Academy of Science, Hefei, Anhui 230031, People's Republic of China
| | - T Lan
- University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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Liu DM, Wan BN, Zhao WZ, Shen B, He YG, Chen B, Huang J, Liu HQ. Development of an alternating integrator for magnetic measurements for experimental advanced superconducting tokamak. Rev Sci Instrum 2014; 85:11E826. [PMID: 25430391 DOI: 10.1063/1.4891706] [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] [Indexed: 06/04/2023]
Abstract
A high-performance integrator is one of the key electronic devices for reliably controlling plasma in the experimental advanced superconducting tokamak for long pulse operation. We once designed an integrator system of real-time drift compensation, which has a low integration drift. However, it is not feasible for really continuous operations due to capacitive leakage error and nonlinearity error. To solve the above-mentioned problems, this paper presents a new alternating integrator. In the new integrator, the integrator system of real-time drift compensation is adopted as one integral cell while two such integral cells work alternately. To achieve the alternate function, a Field Programmable Gate Array built in the digitizer is utilized. The performance test shows that the developed integrator with the integration time constant of 20 ms has a low integration drift (<15 mV) for 1000 s.
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Affiliation(s)
- D M Liu
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China
| | - B N Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - W Z Zhao
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China
| | - B Shen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Y G He
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China
| | - B Chen
- School of Electrical Engineering and Automation, Hefei University of Technology, Hefei 230009, China
| | - J Huang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
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Zou ZY, Liu HQ, Jie YX, Ding WX, Brower DL, Wang ZX, Shen JS, An ZH, Yang Y, Zeng L, Wei XC, Li GS, Zhu X, Lan T. Optical layout and mechanical structure of polarimeter-interferometer system for Experimental Advanced Superconducting Tokamak. Rev Sci Instrum 2014; 85:11D409. [PMID: 25430172 DOI: 10.1063/1.4890400] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A Far-InfaRed (FIR) three-wave POlarimeter-INTerferometer (POINT) system for measurement current density profile and electron density profile is under development for the EAST tokamak. The FIR beams are transmitted from the laser room to the optical tower adjacent to EAST via ∼20 m overmoded dielectric waveguide and then divided into 5 horizontal chords. The optical arrangement was designed using ZEMAX, which provides information on the beam spot size and energy distribution throughout the optical system. ZEMAX calculations used to optimize the optical layout design are combined with the mechanical design from CATIA, providing a 3D visualization of the entire POINT system.
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Affiliation(s)
- Z Y Zou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W X Ding
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - D L Brower
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - Z X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - J S Shen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Z H An
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y Yang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Zeng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - X C Wei
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - G S Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - X Zhu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - T Lan
- Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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Liu HQ, Jie YX, Ding WX, Brower DL, Zou ZY, Li WM, Wang ZX, Qian JP, Yang Y, Zeng L, Lan T, Wei XC, Li GS, Hu LQ, Wan BN. Faraday-effect polarimeter-interferometer system for current density measurement on EAST. Rev Sci Instrum 2014; 85:11D405. [PMID: 25430168 DOI: 10.1063/1.4889777] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A multichannel far-infrared laser-based POlarimeter-INTerferometer (POINT) system utilizing the three-wave technique is under development for current density and electron density profile measurements in the EAST tokamak. Novel molybdenum retro-reflectors are mounted in the inside wall for the double-pass optical arrangement. A Digital Phase Detector with 250 kHz bandwidth, which will provide real-time Faraday rotation angle and density phase shift output, have been developed for use on the POINT system. Initial calibration indicates the electron line-integrated density resolution is less than 5 × 10(16) m(-2) (∼2°), and the Faraday rotation angle rms phase noise is <0.1°.
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Affiliation(s)
- H Q Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y X Jie
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W X Ding
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - D L Brower
- Department of Physics and Astronomy, University of California Los Angeles, Los Angeles, California 90095, USA
| | - Z Y Zou
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - W M Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Z X Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - J P Qian
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y Yang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Zeng
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - T Lan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - X C Wei
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - G S Li
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - L Q Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - B N Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
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He XL, Liu HQ, He B, Yang P, Wang H, Liu SL. [The use of human papillomavirus genotying kit based on gene chip technology for detecting and typing of human papillomavirus]. Sichuan Da Xue Xue Bao Yi Xue Ban 2013; 44:641-645. [PMID: 24059126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
OBJECTIVE To evaluate a new human papillomavirus (HPV) genotyping technique based on gene chip technology (HPG) for HPV genotyping and its clinical efficacy. METHODS HPV genotyping (HPG) test, hybrid capture II (HC2) test and DNA sequencing assay were performed in 151 patients aged 20-75 years with diagnosis of chronic cervicitis or abnormal vaginal bleeding. The cervical specimens were collected from cervical epithelium. All the cervical samples were analyzed by the HPG test, HC2 test and DNA sequencing. The clinical efficacy of the HPG test was analyzed. RESULTS The consistent rate between HPG test and HC2 test was 87.42% (kappa = 0.75, P < 0.05). When DNA sequencing assay was regarding as the final test result, the sensitivity and specificity of HPG test for high risk HPV were 100% and 96.49%, respectively. The consistent rate between HPG test and direct DNA sequencing was 98.70% (kappa = 0.97, P < 0.05). The most common six HPV genotypes detected by HPG test were HPV 16 (13.25%), 58 (11.92%), 52 (11.92%), 31 (6.62%) 39 (5.96%), 33 (5.96%) in descending order of frequency. The incidence of multiple-types infection detected by HPG test was 23.84%. CONCLUSION HPG test is a rapid and accurate test for HPV genotyping which could detect 29 types of HPV infection at one time. It is suitable for cervical HPV infection screening in clinic.
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Affiliation(s)
- Xiao-Li He
- Laboratory of Cell and Gene Therapy, West China Institute of Women and Children's Health, West China Second Hospital, Sichuan University, Chengdu 610041, China
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Sun Q, Xiong J, Lu J, Xu S, Li Y, Zhong XP, Gao GK, Liu HQ. Secretory TAT-peptide-mediated protein transduction of LIF receptor α-chain distal cytoplasmic motifs into human myeloid HL-60 cells. Braz J Med Biol Res 2012; 45:913-20. [PMID: 22714809 PMCID: PMC3854185 DOI: 10.1590/s0100-879x2012007500101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Accepted: 05/29/2012] [Indexed: 11/22/2022] Open
Abstract
The distal cytoplasmic motifs of leukemia inhibitory factor receptor α-chain (LIFRα-CT3) can independently induce intracellular myeloid differentiation in acute myeloid leukemia (AML) cells by gene transfection; however, there are significant limitations in the potential clinical use of these motifs due to liposome-derived genetic modifications. To produce a potentially therapeutic LIFRα-CT3 with cell-permeable activity, we constructed a eukaryotic expression pcDNA3.0-TAT-CT3-cMyc plasmid with a signal peptide (ss) inserted into the N-terminal that codes for an ss-TAT-CT3-cMyc fusion protein. The stable transfection of Chinese hamster ovary (CHO) cells via this vector and subsequent selection by Geneticin resulted in cell lines that express and secrete TAT-CT3-cMyc. The spent medium of pcDNA3.0-TAT-CT3-cMyc-transfected CHO cells could be purified using a cMyc-epitope-tag agarose affinity chromatography column and could be detected via SDS-PAGE, with antibodies against cMyc-tag. The direct administration of TAT-CT3-cMyc to HL-60 cell culture media caused the enrichment of CT3-cMyc in the cytoplasm and nucleus within 30 min and led to a significant reduction of viable cells (P < 0.05) 8 h after exposure. The advantages of using this mammalian expression system include the ease of generating TAT fusion proteins that are adequately transcripted and the potential for a sustained production of such proteins in vitro for future AML therapy.
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Affiliation(s)
- Q Sun
- Department of Hyperbaric Medicine, No 401 Hospital of PLA, Qingdao, China
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46
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Chen XL, Wang H, Zhang XM, Liu HQ, Liu SL. [Establishment of a cisplatin-resistant human cervical cancer cell line]. Sichuan Da Xue Xue Bao Yi Xue Ban 2012; 43:151-155. [PMID: 22650020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To establish a cisplatin (cDDP)-resistant human cervical cancer cell line named SiHa/cDDP and researched its biological characteristics. METHODS The development of cDDP resistance in SiHa cell line was induced by continuously stepwise exposure of the cells to cDDP. Cell growth curve, doubling time and resistance index (RI) were evaluated by MTT analysis. The expression of P-gp, GST-pi, Topo I were assessed with immunocytochemical method. RESULTS SiHa/cDDP cell line was successfully established which had stable growth, subculture, frozen reservation and resuscitation in the concentration of 2 microg/ml cDDP, doubling time was (45.82 +/- 3.69) h and RI to cDDP was 16.131. It also showed different degrees of cross-resistance to several anticancer drugs. As compared to parental SiHa, SiHa/cDDP had over-expression in P-gp and GST-pi (P < 0.01), but Topo I showed no statistically significant differences. CONCLUSION We successfully established the cDDP-resistant human cervical cancer cell line SiHa/cDDP, which may provide ideal experimental model for research of human cervical carcinoma.
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Affiliation(s)
- Xin-Lian Chen
- Laboratory of Genetics, West China Institute of Women and Children's Health, West China Second Hospital, Sichuan University, Chengdu 610041, China
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Guan T, Chen XL, Wei YJ, Lai Y, Xie LY, Liu ZY, Zhang XM, Liu HQ, Zhang JJ, Xie XY, Liu SL. [Isolation and biological characterization of human amniotic fluid-derived stem cells]. Sichuan Da Xue Xue Bao Yi Xue Ban 2012; 43:15-18. [PMID: 22455123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To establish in vitro culture procedure for human amniotic fluid-derived CD117 positive stem cells, and to identify the characteristics of CD117 positive stem cells. METHODS 86 amniotic fluid samples (10 mL of each) were obtained by second-trimester amniocentesis. Isolation of amniotic fluid-derived stem cells expressing CD117 antigen was performed via magnetic cell sorting using the CD117 MicroBead Kit. The karyotype of CD117 positive stem cells was analysed through repeated freezing. Adipogenic differentiation of these CD117 positive stem cells was displayed by Oil Red O staining. Osteogeneic differentiation of these CD117 positive stem cells was confirmed by Alizarin Red staining. RESULTS The CD117 positive stem cells were successfully isolated and cultured from 61 samples, with all showing normal karyotype. Product analysis of specific staining confirmed that under specific culture mediums, these cells could be successfully induced to differentiate into adipocytes and osteocytes. CONCLUSION Based on this study, we estimate that isolating CD117 positive stem cells from second-trimester amniotic fluid obtained by amniocentesis has a success rate of 70.93%. These cells maintain morphological and genetic stability in vitro. Human amniotic fluid-derived CD117 positive stem cells have the ability to differentiate in vitro into adipocytes and osteocytes under specific culture mediums and may be applied in cell transplantation and regenerative medicine.
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Affiliation(s)
- Ting Guan
- Center of Prenatal Diagnosis of Sichuan Province, Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China
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Liang SD, Xu CS, Zhou T, Liu HQ, Gao Y, Li GL. Tetramethylpyrazine inhibits ATP-activated currents in rat dorsal root ganglion neurons. Brain Res 2005; 1040:92-7. [PMID: 15804430 DOI: 10.1016/j.brainres.2005.01.076] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2004] [Revised: 01/15/2005] [Accepted: 01/21/2005] [Indexed: 10/25/2022]
Abstract
Tetramethylpyrazine (TMP) is one of the alkaloids contained in Ligustrazine which has been used in traditional Chinese medicine as an analgesic for injury and dysmenorrhea. ATP can elicit the sensation of pain. This study observed the effects of TMP on ATP-activated current (IATP) in rat DRG neurons. TMP (0.1-1 mM) concentration-dependently inhibited ATP (100 microM)-activated current in rat DRG neurons. The inhibitory time of ATP (100 microM)-activated current appeared at 15 s after preapplication of TMP and reached its peak at about 45 s. The dose-response curves for IATP in the absence and presence of 1 mM TMP showed that TMP (1 mM) shifted the concentration-response curve of IATP downward markedly and the two EC50 values were very close (75 vs. 82 microM), while the threshold value remained unchanged. Therefore, the inhibitory effect of TMP on IATP may be noncompetitive. TMP did not alter the reversal potential (0 mV) of ATP-activated current, indicating that the site of TMP action is on or near the exterior surface of channel protein and not within the channel pore. Externally applied TMP (1 mM) increases the inhibitory effect of chelerythrine (PKC inhibitor) contained in pipette solution on IATP. The site of TMP action may be the binding of TMP to an allosteric site on the large extracellular region of ATP receptor-ion channel complex (P2X receptors) or PKC site of the N-terminus of P2X receptors. The mechanism of TMP action may be the allosteric regulation via acting on the large extracellular region of ATP receptor-ion channel complex (P2X receptors) and promoting the phosphorylation of PKC site of the N-terminus of P2X receptors.
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Affiliation(s)
- S D Liang
- Department of Physiology, Jiangxi Medical College, Nanchang 330006, PR China.
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Huang Y, Wan HQ, Liu HQ, Wu YT, Liu XF. Genomic sequence of an isolate of Newcastle disease virus isolated from an outbreak in geese: a novel six nucleotide insertion in the non-coding region of the nucleoprotein gene. Brief Report. Arch Virol 2004; 149:1445-57. [PMID: 15221544 DOI: 10.1007/s00705-004-0297-8] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2004] [Indexed: 10/26/2022]
Abstract
We have completely sequenced the genome of an isolate of Newcastle disease virus (NDV) obtained following an outbreak in geese. The genomic sequence consists of 15192 nt, which is six nt longer than the published full length genome of the NDV strains La Sota, B1, Clone-30, Beaudette C and HB V4. The six nt insertion was located in the non-coding region of the nucleoprotein (NP) gene between nt 1646 and nt 1647 of the NDV genome (numbered according to the genomic sequence of the La Sota strain). An additional 22 NDV strains were searched for the existence of this six nt insertion. NDVs in genotypes VI, VII, VIII and IX had this insertion while NDV's in genotypes I, II, III, IV, and V did not. The significance of this insertion in NDV evolution is discussed.
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Affiliation(s)
- Y Huang
- Animal Infectious Disease Laboratory, School of Veterinary Medicine, Yangzhou University, Yangzhou, P.R. China
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Jiang GM, Sun JZ, Liu HQ, Qu CM, Wang KJ, Guo RJ, Bai KZ, Gao LM, Kuang TY. Changes in the rate of photosynthesis accompanying the yield increase in wheat cultivars released in the past 50 years. J Plant Res 2003; 116:347-54. [PMID: 12898392 DOI: 10.1007/s10265-003-0115-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2003] [Accepted: 06/18/2003] [Indexed: 05/20/2023]
Abstract
Photosynthetic rates in different development stages were carefully investigated in 18 cultivars of winter wheat released in the period between 1945 and 1995 in the area of Beijing, China. During this period, the recorded grain yield has increased eightfold. However, when those cultivars were planted and managed in the same environment, the difference was reduced to only 36%, indicating that agronomic practices are the most important factors for grain yield. Agronomic features have changed greatly in the past 50 years, through increasing the harvest index (R2 = 0.89, P < 0.05), shortening plant height (R2 = 0.77, P < 0.05) and slightly increasing flag leaf areas (R2 = 0.45, P < 0.05), which is mostly in agreement with many other researchers. In contrast to many reports, however, this study found a genetic increase in the rate of photosynthesis per unit leaf area. From the mid-stem elongation to soft dough stages, the average photosynthetic rates at saturated photosynthetic photon flux density (P(sat)) increased by 44%. In the process, the stomatal conductance (g(s)) also increased by 122%. Grain yield was positively related to the mean values of P(sat) (R2 = 0.61, P < 0.01) and g(s) (R2 = 0.67, P < 0.01) in the six development stages. Our experiment may suggest that increase in grain yield was associated with the elevation of leaf photosynthetic rate and stomatal conductance over the past 50 years.
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Affiliation(s)
- G M Jiang
- Laboratory of Quantitative Vegetation Ecology, Institute of Botany, The Chinese Academy of Sciences, 20 Nanxincun, Xiangshan, 100093 Beijing, China.
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