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Dong ZQ, Chen YF, Liang J, Fan YJ. [Research advances of collagen-based biomaterials in wound repair]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2024; 40:90-95. [PMID: 38296242 DOI: 10.3760/cma.j.cn501225-20231026-00136] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
Acute or chronic wounds are common clinical problems. Collagen, with advantages including rich sources, impeccable biocompatibility, and inherent biodegradability, has been widely used in fundamental research and clinical treatment of wound repair with broad prospects of clinical applications. This article provided a brief overview of the role of collagen in various biological processes related to wound healing and also outlined the sources of collagen. Furthermore, the article summarized the application and recent research advancements of collagen-based wound dressings in the field of wound repair.
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Affiliation(s)
- Z Q Dong
- National Engineering Research Center for Biomaterials, Sichuan University, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Y F Chen
- National Engineering Research Center for Biomaterials, Sichuan University, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - J Liang
- National Engineering Research Center for Biomaterials, Sichuan University, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
| | - Y J Fan
- National Engineering Research Center for Biomaterials, Sichuan University, College of Biomedical Engineering, Sichuan University, Chengdu 610064, China
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Chen YF, Liu SQ, Li MY, Chen R, Shi RH. [Efficacy and safety of endoscopic submucosal dissection with additional radiotherapy for T1a-MM/T1b-SM esophageal squamous cell carcinoma]. Zhonghua Yi Xue Za Zhi 2023; 103:3676-3682. [PMID: 38018068 DOI: 10.3760/cma.j.cn112137-20230814-00222] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Objective: To clarify the efficacy and safety of endoscopic submucosal dissection (ESD) with additional radiotherapy in T1a-MM/T1b-SM esophageal squamous cell carcinoma (ESCC). Methods: A retrospective analysis was conducted on 71 patients with T1a-MM/T1b-SM ESCC admitted to Southeast University Affiliated Zhongda Hospital from January 2015 to December 2019. The patients were divided into two groups based on the treatment method: the ESD group (ESD therapy alone) and the ESD-radiotherapy group (ESD combined radiotherapy). The follow-up duration after ESD was (44±17) months. The difference of disease-free survival (DFS) rate and overall survival (OS) rate between the two groups was compared by survival analysis, and the occurrence of complications was compared. Baseline variables of the two groups were compared and the influencing factors of DFS rate were analyzed by Cox proportional risk regression model. Results: There were 44 patients in the ESD-radiotherapy group [28 males, 16 females, aged (65±7) years] and 27 patients in the ESD group [18 males, 9 females, aged (67±9) years]. The results of survival analysis show that the 1, 3 and 5-year DFS rates of ESD-radiotherapy group were 95.5%, 92.9% and 77.4%, respectively, which were higher than those of ESD group 85.2%, 73.2% and 62.7% (all P<0.05). The 1, 3 and 5-year OS rates of the ESD-radiotherapy group were 100%, 94.7% and 94.7%, while those of the ESD group were 96.3%, 96.3% and 79.4%, respectively. The difference was not statistically significant (all P>0.05). Cox proportional hazard regression model analysis showed that ESD combined with radiotherapy (HR=0.19, 95%CI: 0.04-0.90, P=0.037), complete tumor resection (HR=0.25, 95%CI: 0.07-0.86, P=0.027), and vascular invasion (HR=12.06, 95%CI: 1.61-90.26, P=0.015) were the influencing factors of DFS rates. The most common complication of ESD was esophageal stenosis, and no grade 3 or higher radiation adverse reactions occurred after combined radiotherapy. Conclusion: ESD combined radiotherapy is an effective and safe therapeutic strategy for patients with T1a-MM/T1b-SM ESCC.
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Affiliation(s)
- Y F Chen
- Nanjing Medical University, Nanjing 211166, China Department of Gastroenterology, Southeast University Zhongda Hospital, Nanjing 210009, China
| | - S Q Liu
- Department of Gastroenterology, Southeast University Zhongda Hospital, Nanjing 210009, China
| | - M Y Li
- Department of Gastroenterology, Southeast University Zhongda Hospital, Nanjing 210009, China
| | - R Chen
- Department of Oncology, Southeast University Zhongda Hospital, Nanjing 210009, China
| | - R H Shi
- Nanjing Medical University, Nanjing 211166, China Department of Gastroenterology, Southeast University Zhongda Hospital, Nanjing 210009, China
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Chen YF, Cheng LL, Shen YH, Zhang H, Wang XJ, Xu YC, Zhang J, Ge JB. [Investigate the role of neutrophil extracellular traps in immune checkpoint inhibitor-associated myocarditis with programmed death protein-1 inhibitors involvement]. Zhonghua Yi Xue Za Zhi 2023; 103:3384-3393. [PMID: 37963736 DOI: 10.3760/cma.j.cn112137-20230901-00357] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Objective: To investigate the role of neutrophil extracellular traps (NETs) in immune checkpoint inhibitor-associated myocarditis (ICIAM) with programmed death protein-1 (PD-1) inhibitors involvement, and to explore the therapeutic potential of targeting NETs in the treatment of ICIAM. Methods: Thirty 6-week-old male BALB/c mice were randomly divided into control group (n=10), myocarditis group (n=10), and treatment group (n=10). Apart from the control group, each mouse was subcutaneously injected with 100 μl of complete Freund's adjuvant containing 250 μg of mouse cardiac troponin I peptide on the 1st and 7th day. Starting on the 8th day, PD-1 inhibitor (15 μg/per mouse) was intraperitoneally injected every other day for a total of 5 times. Since 1 day before the beginning of PD-1+TnI injection, the treatment group was injected with PF-1355 (50 mg·kg-1·d-1) for 16 consecutive days. The mice's general state was observed during the whole process. Real-time fluorescence quantitative PCR (RTFQ-PCR) was carried out to evaluate the transcriptional regulation of neutrophil related chemokines, NETs, pyronecrosis related factors and proinflammatory cytokines. Immunohistochemistry, immunofluorescence and western blot were applied to determine the changes of pyrosis related molecules. Echocardiography showed the differences of main cardiac indexes while cardiac pathology compared the degree of inflammatory infiltration in 3 gruops. Results: The immunofluorescence intensity of myocardial NETs in the myocarditis group was significantly increased compared to the control group mice (2.49±0.08 and 0.99±0.26, P<0.001). The protein expression levels of pyroptosis-related NLRP3, cleaved-Caspase 1, Caspase 1, cleaved-GSDMD, GSDMD, IL-1β and IL-18 in myocardial tissue of the model group were higher than those of the control group (all P<0.05). After treatment with PF-1355, compared to the myocarditis group, the left ventricular ejection fraction (LVEF) (73.58%±5.31% and 58.12%±3.19%, P<0.001) and left ventricular fraction shortening (LVFS) (39.78%±4.31% and 33.89%±2.19%, P<0.001) increased. H-E staining showed a reduction in inflammatory infiltration area in the treatment group compared to the myocarditis group (30.12%±3.57% and 14.92%±2.46%, P<0.001). The immunofluorescence intensity of NETs decreased in the treatment group compared to the myocarditis group (2.52±0.04 and 1.03±0.05, P<0.001). The levels of NLRP3 and other pyroptosis-related molecules were downregulated in the treatment group compared to the myocarditis group (all P<0.05). Conclusions: NETs lead to myocardial cell pyroptosis by activating the NLRP3 inflammasome in PD-1 inhibitor-associated myocarditis. The specific MPO inhibitor PF-1355 shows a therapeutic potential by regulating the formation of NETs, decreasing NLRP3 level and relieving myocardial pyroptosis, thus reducing myocardial damage.
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Affiliation(s)
- Y F Chen
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - L L Cheng
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, China
| | - Y H Shen
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, China
| | - H Zhang
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, China
| | - X J Wang
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, China
| | - Y C Xu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
| | - J Zhang
- Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Department of Echocardiography, Zhongshan Hospital, Fudan University, Shanghai Institute of Medical Imaging, Shanghai 200032, China
| | - J B Ge
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, National Clinical Research Center for Interventional Medicine, Shanghai 200032, China
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Liu TF, Chen YF, Hsu FM, Yang WC. Comparison of Hippocampal Volume Change after Whole-Brain Radiotherapy with and without Hippocampal Avoidance: A Post-Hoc Analysis of a Phase II Randomized Trial. Int J Radiat Oncol Biol Phys 2023; 117:e131. [PMID: 37784693 DOI: 10.1016/j.ijrobp.2023.06.931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Hippocampal avoidance whole-brain radiotherapy (HA-WBRT) preserves verbal memory compared to conformal WBRT in the previously reported randomized phase II clinical trial. In the present study, we analyzed the changes in hippocampus volume between groups at longitudinal follow-up time points. We hypothesize better preservation of hippocampus volumes with time in the HA-WBRT group. MATERIALS/METHODS In this post-hoc analysis of a single institution, single-blind, randomized phase II trial, patients with brain metastases were randomized to receive either HA-WBRT or conformal WBRT with 30 Gy in 10 fractions. Patients received gadolinium contrast-enhanced MRI every three months or when clinically indicated after WBRT until progression. Only patients with at least one follow-up MRI were included. The MRI was used to assess baseline intracranial volume, hippocampal volume, the ratio of the total hippocampus to total intracranial volume (HT%), and the ratio of the left (HL%) or right (HR%) hippocampus to total intracranial volume. The volumes were automatically calculated by volBrain, an online MRI brain volumetry system. We used linear mixed models with fixed and random effects to compare the changes of repeated measures of the hippocampus volumes over time between the two groups. RESULTS Among 70 randomized patients, 51 (25 in the HA-WBRT group and 26 in the WBRT group) were included in the present analysis. There were no significant differences between the two groups in the baseline demographics, HT%, HR%, and HL%. The median follow-up time was 13.9 months (range 2.1-31.8 months), and more than 60% of patients had at least one year of follow-up. Linear mixed model analyses showed a more significant decrease of HT% over time in the WBRT arm (regression coefficient β = -0.002, p = 0.001) compared to the HA-WBRT arm (regression coefficient, β = -0.001, p = 0.254), with a significant group by time interaction (F-value = 4.27, p = 0.050). The HL% was stable over time in the HA-WBRT arm (β = 0.0001, p = 0.769) while it decreased in the WBRT arm (β = -0.001, p = 0.003), with a significant group by time interaction (F-value = 6.51, p = 0.015). In contrast, the HR% decreased over time in both groups (HA-WBRT: regression coefficient β = -0.001, p = 0.006; WBRT: regression coefficient β = -0.001, p < 0.001) without significant group by time interaction (F-value = 0.20, p = 0.662). CONCLUSION HA-WBRT better preserves total hippocampus volume with time compared to WBRT, with the main effect contributed by preserving the left hippocampus volume. Further research is warranted to establish the relationship between hippocampus volume perpetuation and cognitive function preservation. The future goal is to investigate whether left-side unilateral HA-WBRT provides similar neurocognitive function preservation compared to standard bilateral HA-WBRT.
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Affiliation(s)
- T F Liu
- Division of Radiation Oncology, Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan
| | - Y F Chen
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan
| | - F M Hsu
- Division of Radiation Oncology, Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - W C Yang
- Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan; Department of Radiation Oncology, National Taiwan University Cancer Center, Taipei, Taiwan
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Zhao XD, Li MY, Tang XJ, Zhu Y, Chen YF, Shi RH. [Safety and efficacy analysis of the removal of refractory esophageal self-expandable metal stents by stent-in-stent technique]. Zhonghua Yi Xue Za Zhi 2023; 103:2449-2452. [PMID: 37599221 DOI: 10.3760/cma.j.cn112137-20230309-00361] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
To evaluate the safety and efficacy of esophageal stent-in-stent (SIS) in patients with refractory esophageal self-expandable metal stents (SEMS). Case series study. Retrospective analysis was made on the patients with refractory esophageal SEMS treated with SIS technology in Zhongda Hospital Affiliated to Southeast University from June 2015 to June 2021. The success rate of stent removal and the incidence of adverse events were analyzed. A total of 12 patients were included, including 7 males and 5 females, aged 50-73 (62.7±8.5) years. The clinical success rate of the internal stents was 12/12, with the median retention time of [M(Q1, Q3), 64.5 (52.0, 90.8)] days. The postoperative displacement rate and severe stenosis incidence were 1/12 and 3/12, respectively. The esophageal stents were successfully removed in one endoscopic session in all patients. A small amount of mucous membrane extravasation occurred in all patients after SIS, and no patients died after 90 days of follow-up.
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Affiliation(s)
- X D Zhao
- Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing 210029, China
| | - M Y Li
- Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing 210029, China
| | - X J Tang
- Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing 210029, China
| | - Y Zhu
- Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing 210029, China
| | - Y F Chen
- Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing 210029, China
| | - R H Shi
- Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing 210029, China
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Hsu YH, Cheng PW, Lin SQ, Liang HC, Huang KF, Chen YF. High-peak-power optically pumped passively mode-locked semiconductor laser with minimal components. Opt Lett 2023; 48:4324-4327. [PMID: 37582023 DOI: 10.1364/ol.498852] [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] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 07/25/2023] [Indexed: 08/17/2023]
Abstract
A high-peak-power sub-500-fs mode-locked optically pumped semiconductor laser is innovatively developed with only three components of a semiconductor gain chip, a semiconductor saturable absorber, and a focusing lens. The developed laser near the threshold pump power of 3.9 W can be operated with stable fundamental mode locking. The laser output can be naturally turned into the stable harmonic mode locking (HML) with the order gradually changing from 2nd to 8th by increasing the pump power from 4.0 W to 5.0 W. Due to the onset of the high-order transverse modes, the order of HML is fixed at 8th for a pump power greater than 5.0 W. For the HML with order less than 8th, the overall peak power and pulse width in the HML are approximately 0.36 kW and 550 fs, respectively. In the operation of 8th-order HML, the minimum pulse width and maximum peak power can reach 480 fs and 0.95 kW, respectively.
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Chen X, Chen YF. [Analysis of the disease burden of pneumoconiosis globally and in China from 1990 to 2019]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2023; 41:417-424. [PMID: 37400401 DOI: 10.3760/cma.j.cn121094-20221019-00478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Objective: To analyze the disease burden of pneumoconiosis globally and in China from 1990 to 2019 using Global Burden of Disease (GBD) 2019 data, and to provide a theoretical basis for prevention and control of pneumoconiosis. Methods: In September 2022, the data of incidence, prevalence, morality and disability-adjusted life years (DALY) of pneumoconiosis and its subtypes globally and in China from 1990 to 2019 were collected from GBD 2019, including absolute number and age-standardized rate (ASR). Joinpoint linear regression model was used to calculate average annual percent change (AAPC) and analyze the change trends of incidence, prevalence, mortality and DALY of pneumoconiosis and its subtypes. Results: From 1990 to 2019, the incident cases, prevalent cases and DALY value of pneumoconiosis showed upward trends, while the number of death cases showed downward trends. And the ASR of incidence (ASIR), the ASR of prevalence (ASPR), the ASR of mortality (ASMR) and the ASR of DALY (ASDR) showed downward trends globally and in China. China accounted for a large proportion of the global disease burden of penumoconiosis, accounting for more than 67% of the incident cases, more than 80% of the prevalent cases, more than 43% of the deaths cases and more than 60% of the absolute number of DALY in the world every year. Male were the main population of pneumoconiosis disease burden globally and in China, and the age of onset was earlier than that of female. The peak age periods of incidence, prevalence, mortality and DALY of pneumoconiosis globally and in China from 1990 to 2019 have increased. Silicosis was still the type with the highest disease burden of pneumoconiosis globally and in China. The disease burden of coal workers' pneumoconiosis had an overall improvement trend, but asbestosis had an increasing disease burden worldwide. Conclusion: The disease burden of pneumoconiosis is heavy globally and in China, which is necessary to strengthen the supervision and prevention measures according to gender, age and etiological types.
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Affiliation(s)
- X Chen
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Y F Chen
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Chen YF, Weng WW, Tang YM. [Research progress of nucleoporin 98-rearranged fusion gene in pediatric acute myeloid leukemia]. Zhonghua Er Ke Za Zhi 2023; 61:565-568. [PMID: 37312473 DOI: 10.3760/cma.j.cn112140-20220913-00798] [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: 06/15/2023]
Affiliation(s)
- Y F Chen
- Center of Hematology-Oncology, Children's Hospital,Zhejiang University School of Medicine, the Pediatric Leukemia Diagnostic and Therapeutic Technology Research Center of Zhejiang Province, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - W W Weng
- Center of Hematology-Oncology, Children's Hospital,Zhejiang University School of Medicine, the Pediatric Leukemia Diagnostic and Therapeutic Technology Research Center of Zhejiang Province, National Clinical Research Center for Child Health, Hangzhou 310003, China
| | - Y M Tang
- Center of Hematology-Oncology, Children's Hospital,Zhejiang University School of Medicine, the Pediatric Leukemia Diagnostic and Therapeutic Technology Research Center of Zhejiang Province, National Clinical Research Center for Child Health, Hangzhou 310003, China
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Chen YF, Chung WC, Zheng XL, Hsieh MX, Tung JC, Liang HC. Orbital angular momentum densities in the astigmatic transformation of Lissajous geometric laser modes. Opt Lett 2023; 48:1818-1821. [PMID: 37221774 DOI: 10.1364/ol.484982] [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] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/28/2023] [Indexed: 05/25/2023]
Abstract
Orbital angular momentum densities in the astigmatic transformation of Lissajous geometric laser modes are originally and systematically investigated. The quantum theory of the coherent state is exploited to derive an analytical wave representation for the transformed output beams. The derived wave function is further employed to numerically analyze the propagation dependent orbital angular momentum densities. The parts of the negative and positive regions in the orbital angular momentum density are found to rapidly change in the Rayleigh range behind the transformation.
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Zhao YK, Xie K, Bao LW, Chen YF, Luo XP, Shi HM, Zhu N, Yang MJ, Cheng X, Wang HY, Li J. [Recurrent syncope of unknown origin after ICD implantation: a case report]. Zhonghua Nei Ke Za Zhi 2022; 61:1366-1369. [PMID: 36456520 DOI: 10.3760/cma.j.cn112138-20211208-00872] [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: 06/17/2023]
Affiliation(s)
- Y K Zhao
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - K Xie
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - L W Bao
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Y F Chen
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - X P Luo
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - H M Shi
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - N Zhu
- Department of Respiratory, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - M J Yang
- Department of Emergency, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - X Cheng
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - H Y Wang
- Department of Medical Department, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - J Li
- Department of Cardiology, Huashan Hospital, Fudan University, Shanghai 200040, China
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Lin LS, Chen XY, Zhang HP, Chen YF, Zhang YX, Zeng YM. [Efficacy of selective bronchial occlusion in the treatment of intractable pneumothorax]. Zhonghua Yi Xue Za Zhi 2022; 102:3501-3504. [PMID: 36418246 DOI: 10.3760/cma.j.cn112137-20220708-01510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To analyze the effect of selective bronchial occlusion (SBO) in the treatment of intractable pneumothorax. Methods: A total of 86 patients with refractory pneumothorax treated with SBO in the Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Fujian Medical University from January 1, 2019 to December 31, 2021 were included in this study. The basic information, diagnosis and treatment of the patients were collected and analyzed based on their inpatient records. Results: The age of the subjects was (62±11) years old, and 83 cases (96.5%) were male. The first time SBO cure rate was 30.2% (26/86). The effective rate of the first time SBO treatment was 38.4% (33/86), and the final cure rate of SBO was 59.3% (51/86). The total cure rate of SBO combined with other therapies was 73.3% (63/86). The median time [M (Q1, Q3)] from the first plugging to the complete cessation of air leakage in SBO cured patients was 6.5 (3, 7) days, which was shorter than that in the final extubation patients after SBO [11 (7, 19) days] (H=30.24, P<0.001). The median [M (Q1, Q3)] length of hospital stay of the first SBO cured patients was 19 (14, 25) days, which was shorter than that of all patients [28 (19, 37) days] (H=12.89, P=0.002). The median [M (Q1, Q3)] hospitalization expenses of patients with first SBO cure, effective SBO treatment and ineffective SBO treatment were 23 187 (18 906, 27 798), 41 580 (29 388, 50 762) and 38 462 (27 542, 51 720) yuan, respectively, and the difference was statistically significant (H=18.58, P<0.001). The incidence of complications after SBO was 7.59% (11/145). Conclusion: SBO has good efficacy and relative high safety in the treatment of intractable pneumothorax.
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Affiliation(s)
- L S Lin
- Department of Respiratory and Critical Care medicine, the Second Affiliated Hospital of Fujian Medical University, Fujian Respiratory Medicine Center, Fujian Clinical Research Center for Interventional Diagnosis and Treatment of Respiratory Diseases, Quanzhou 362000, China
| | - X Y Chen
- Department of Respiratory and Critical Care medicine, the Second Affiliated Hospital of Fujian Medical University, Fujian Respiratory Medicine Center, Fujian Clinical Research Center for Interventional Diagnosis and Treatment of Respiratory Diseases, Quanzhou 362000, China
| | - H P Zhang
- Department of Respiratory and Critical Care medicine, the Second Affiliated Hospital of Fujian Medical University, Fujian Respiratory Medicine Center, Fujian Clinical Research Center for Interventional Diagnosis and Treatment of Respiratory Diseases, Quanzhou 362000, China
| | - Y F Chen
- Department of Respiratory and Critical Care medicine, the Second Affiliated Hospital of Fujian Medical University, Fujian Respiratory Medicine Center, Fujian Clinical Research Center for Interventional Diagnosis and Treatment of Respiratory Diseases, Quanzhou 362000, China
| | - Y X Zhang
- Department of Respiratory and Critical Care medicine, the Second Affiliated Hospital of Fujian Medical University, Fujian Respiratory Medicine Center, Fujian Clinical Research Center for Interventional Diagnosis and Treatment of Respiratory Diseases, Quanzhou 362000, China
| | - Y M Zeng
- Department of Respiratory and Critical Care medicine, the Second Affiliated Hospital of Fujian Medical University, Fujian Respiratory Medicine Center, Fujian Clinical Research Center for Interventional Diagnosis and Treatment of Respiratory Diseases, Quanzhou 362000, China
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Liu YY, Chen YF, Liu J, Chen L, Jiang JJ, Sun R, Chen H. [Efficacy and safety of adalimumab in patients with Crohn's disease]. Zhonghua Nei Ke Za Zhi 2022; 61:1031-1036. [PMID: 36008296 DOI: 10.3760/cma.j.cn112138-20211019-00716] [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 assess the effectiveness and safety of adalimumab in Crohn's disease (CD) patients. Methods: We retrospectively reviewed the charts of 41 CD patients who received adalimumab in Zhongda Hospital Southeast University from January 2020 to August 2021. General clinical data, laboratory results, endoscopy and radiologic findings were collected, meanwhile, disease activity and safety events were evaluated at baseline and at 12, 24 and 48 weeks of administration. Adalimumab was given subcutaneously once every 2 weeks in doses of 160 mg for the first time, 80 mg for the second time, and 40 mg for each subsequent time. Results: The clinical remission rates at 12, 24, and 48 weeks of treatment were 43.9% (18/41), 60.6% (20/33), 60.9% (14/23), and the clinical response rates were 75.6% (31/41), 69.7% (23/33), and 56.5%( 13/23), respectively. The proportion of endoscopic remission at 12, 24 and 48 weeks were 4/14, 2/6, 1/4 in patients undergoing endoscopy, and 1/14 patients achieved mucosal healing at 24 weeks. Primary nonresponse rate (PNR) was 17.1% (7/41), loss of response (LOR) rate was 14.6% (6/41). The incidence of adverse reactions was 9.8%(4/41). Conclusion: Adalimumab can effectively relieve the clinical symptoms and intestinal disease activities of Crohn's disease, and deserves to be popularized clinically. Patients with disease course <2 years, first-line biologics, low baseline HBI score, and longer duration of medication may have better results.
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Affiliation(s)
- Y Y Liu
- School of Medicine, Southeast University, Nanjing 210009, China
| | - Y F Chen
- Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing 210009, China
| | - J Liu
- Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing 210009, China
| | - L Chen
- Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing 210009, China
| | - J J Jiang
- School of Medicine, Southeast University, Nanjing 210009, China
| | - R Sun
- School of Medicine, Southeast University, Nanjing 210009, China
| | - H Chen
- School of Medicine, Southeast University, Nanjing 210009, China Department of Gastroenterology, Zhongda Hospital Southeast University, Nanjing 210009, China
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Tung JC, Ke HT, Liang HC, Huang KF, Chen YF. Structured transverse modes governed by maximum entropy principle. Opt Lett 2022; 47:3756-3759. [PMID: 35913307 DOI: 10.1364/ol.464399] [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] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Based on the birefringent effect of the gain medium, a diode-pumped Nd-doped vanadate laser with nearly hemispherical cavity is exploited to emulate the quantum Green functions of two-dimensional commensurate harmonic oscillators. By matching the theoretical calculations to the far-field patterns of lasing modes, the resonant transverse frequencies can be accurately determined up to extremely high orders. The Shannon entropy is further employed to calculate the spatial entanglement of the quantum Green function as a function the transverse frequency. From the resonant transverse frequencies, all lasing modes are confirmed to be in excellent agreement with the maximum entropy states. This discovery implies that the formation of lasing modes is relevant to the coupling interaction between the pump source and the laser cavity.
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14
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Chen YF, Zheng ZX, Huang CY, Guo BC, Tsou CH, Liang HC. Continuous wave dual-wavelength Nd:YVO 4 laser at 1342 and 1525 nm for generating a 714-nm emission. Opt Lett 2022; 47:3792-3795. [PMID: 35913316 DOI: 10.1364/ol.466231] [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] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Continuous wave dual-wavelength lasers at 1342 and 1525 nm are developed by using separate Nd:YVO4 and YVO4 crystals to form compactly coupled cavities for fundamental and Raman waves, respectively. The design of the coupled cavity not only reduces the thermal lensing effect in the Nd:YVO4 crystal, but also improves the stimulated Raman scattering (SRS) efficiency in the undoped YVO4 crystal. In addition, the Raman crystal is coated to form a highly reflective mirror to minimize cavity losses. By using a plano-concave cavity with a pump power of 40 W, the output powers of the fundamental and Raman waves are 470 mW and 310 mW, respectively. Changed to a concave cavity, the output powers of fundamental and Raman waves are 220 mW and 510 mW, respectively. Basis on the dual-wavelength operation, the maximum output power at 714 nm can reach 2.0 W via the sum frequency generation. A light source at 714 nm can be used for laser spectroscopy of atomic and ionic radium isotopes.
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Yu YT, Hsieh MX, Liang HC, Chen YF. Characterizing propagation-dependent spatial entanglement for structured laser beams generated by an astigmatic mode converter. Opt Lett 2022; 47:3223-3226. [PMID: 35776590 DOI: 10.1364/ol.465023] [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] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
The propagation-dependent spatial entanglement for the structured laser beams generated by an arbitrary incident Hermite-Gaussian (HG) mode passing through an astigmatic mode converter (AMC) is theoretically explored. The structured output beams are analytically decomposed into the expansion of HG modes for any given rotation angle of the AMC. Based on the Schmidt decomposition, the propagation-dependent spatial entanglements of the structured output modes are quantified with the von Neumann entropy. To manifest the propagation-dependent entropy, the probability distribution of the expanded HG modes in the structured output beam is quantitatively analyzed.
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16
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Zheng XL, Hsieh MX, Chen YF. Quantifying the emergence of structured laser beams relevant to Lissajous parametric surfaces. Opt Lett 2022; 47:2518-2521. [PMID: 35561390 DOI: 10.1364/ol.461163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 04/21/2022] [Indexed: 06/15/2023]
Abstract
Lissajous structured beams emerging from a spherical laser cavity subject to the birefringent effect of the laser crystal are quantitatively analyzed. The analysis reveals that the birefringent effect leads to numerous frequency degeneracies at the cavity lengths near an ideal degenerate cavity. By using a diode-pumped Nd:GdVO4 laser, the emergence of Lissajous structured modes relevant to frequency degeneracies is precisely quantified by comparing experimental results with numerical analyses. The present quantitative analysis provides an important guideline for the generation of structured transverse modes related to the ray-wave correspondence.
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17
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Wang YF, Zhang YX, Zeng YM, Wu WJ, Chen YF, Huang DH, Huang JM. [Two cases of pulmonary Schizophyllum commune infection and literature review]. Zhonghua Nei Ke Za Zhi 2021; 60:1169-1172. [PMID: 34856690 DOI: 10.3760/cma.j.cn112138-20210113-00033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- Y F Wang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Fujian Medical University, Quanzhou 362300, China
| | - Y X Zhang
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Fujian Medical University, Quanzhou 362300, China
| | - Y M Zeng
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Fujian Medical University, Quanzhou 362300, China
| | - W J Wu
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Fujian Medical University, Quanzhou 362300, China
| | - Y F Chen
- Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Fujian Medical University, Quanzhou 362300, China
| | - D H Huang
- Department of Microbiology, Second Affiliated Hospital of Fujian Medical University, Quanzhou 362300, China
| | - J M Huang
- Department of Microbiology, Second Affiliated Hospital of Fujian Medical University, Quanzhou 362300, China
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18
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Lian SQ, Lin X, Zhang YQ, Chen YF. [Prevalence of sharp instrument injuries among medical staff in a tertiary general hospital]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:848-851. [PMID: 34886646 DOI: 10.3760/cma.j.cn121094-20200914-00525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To investigate the current situation of sharp instrument injuries among medical workers in a tertiary general hospital in Fuzhou, so as to provide basis for formulating relevant policies. Methods: In June 2019, medical personnel working in a tertiary general hospital in Fuzhou, who may have sharp instrument injuries were selected as the research object. A total of 2720 questionnaires were received, including 2688 valid questionnaires, with an effective rate of 98.8%. The age, type of work, professional title, working years, operating habits, occurrence and reporting of sharp instrument injuries among medical staff from June 2018 to May 2019 were investigated. Results: The incidence of sharp instrument injury was 37.6% (1011/2688) . Among them, 20.6% (208/1011) had multiple sharp instrument injuries. The exposure rate of contaminated sharp instruments was 15.1% (405/2688) . With the increase of age, professional title and working years, the incidence of sharp instrument injury decreased year by year (χ(2)(trend)=12.393, 33.339, 15.160, P<0.05) . The first three causes of sharp instrument injury were breaking glass ampoules by hand (39.1%, 395/1011) , extracting liquid medicine (10.4%, 105/1011) and handling sharp instruments by hand (10.3%, 104/1011) . The main sharp instruments causing sharp injury were ampoules (43.2%, 437/1011) , syringe needles (20.3%, 205/1011) and suture needles (9.6%, 97/1011) . 874 (86.4%) medical staff had missed reports after sharp instrument injuries. Conclusion: The occurrence of sharp instrument injury in this hospital is still serious, and the protection of sharp instrument injury should be strengthened.
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Affiliation(s)
- S Q Lian
- Fujian Provincial Hospital, Fuzhou 350001, China
| | - X Lin
- Fujian Provincial Hospital, Fuzhou 350001, China
| | - Y Q Zhang
- Fujian Provincial Hospital, Fuzhou 350001, China
| | - Y F Chen
- Fujian Provincial Hospital, Fuzhou 350001, China
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19
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Chen YF, Hsieh MX, Ke HT, Yu YT, Liang HC, Huang KF. Quantum entanglement by a beam splitter analogous to laser mode transformation by a cylindrical lens. Opt Lett 2021; 46:5129-5132. [PMID: 34653132 DOI: 10.1364/ol.439322] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 08/23/2021] [Indexed: 06/13/2023]
Abstract
Quantum entanglement by a beam splitter (BS) is shown to be analogous to laser mode transformation by an astigmatic mode converter (AMC). Schmidt decomposition is used to characterize the entanglement by an AMC for generating orbital angular momentum and by a BS for creating quantum photon interference. The probability distributions of Schmidt decomposition are calculated to manifest the sameness and difference between AMC and BS in generating entanglement. Finally, the theoretical patterns of mode transformations by an AMC are confirmed with experimental results to validate the present analysis.
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20
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Jiang CY, Pan H, Yu X, Tian L, Wu HY, Liu JY, Chen YF, Chen HY, Zhu YY. [Epidemiological investigation on an imported cutaneous anthrax case in Shanghai]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1846-1849. [PMID: 34814622 DOI: 10.3760/cma.j.cn112338-20210422-00333] [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: 06/13/2023]
Abstract
Objective: To discuss the challenges and problems of the prevention and control of emerging infectious diseases in Shanghai as a megacities. Methods: An imported case of cutaneous anthrax occurred in Shanghai on May 30, 2019. Shanghai Municipal Center for Disease Control & Prevention conducted an epidemiological investigation and treatment of the cases; after this case, the data of patients with cutaneous anthrax were collected, and an epidemiological study was conducted. Meanwhile, the wound and blood samples of the patient were collected for laboratory testing. Results: Of the seven wound samples of the patient, 6 were positive for the Bacillus anthracis nucleic acid test, and the double serological test results showed a 4-fold increase in the titer of anthrax antibodies. Shanghai CDC conducted an epidemiological investigation of the confirmed cases and observed its contacts. After treatment, the patients recovered, and no other issues appeared among the 19 contacts. Conclusions: Shanghai must strengthen the training of clinicians on emerging infectious diseases to achieve early detection, diagnosis, and treatment of imported infectious diseases and reduce the incidence, spread, and death of the diseases. At the same time, multi-department joint prevention and control are needed to prevent and control secondary cases.
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Affiliation(s)
- C Y Jiang
- Division of Infectious Disease Control and Prevention,Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
| | - H Pan
- Division of Infectious Disease Control and Prevention,Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
| | - X Yu
- Division of Infectious Disease Control and Prevention,Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
| | - L Tian
- Division of Infectious Disease Control and Prevention,Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
| | - H Y Wu
- Division of Infectious Disease Control and Prevention,Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
| | - J Y Liu
- Division of Infectious Disease Control and Immunization,Shanghai Xuhui District Center for Disease Control and Prevention, Shanghai 200237, China
| | - Y F Chen
- Division of Infectious Disease Control and Immunization,Shanghai Xuhui District Center for Disease Control and Prevention, Shanghai 200237, China
| | - H Y Chen
- Division of Pathogen Detection, Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
| | - Y Y Zhu
- Division of Infectious Disease Control and Prevention,Shanghai Municipal Center for Disease Control & Prevention, Shanghai 200336, China
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21
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Hsieh MX, Zheng XL, Yu YT, Liang HC, Huang KF, Chen YF. Characterizing the spatial entanglement from laser modes analogous to quantum wave functions. Opt Lett 2021; 46:3713-3716. [PMID: 34329263 DOI: 10.1364/ol.434069] [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] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 07/03/2021] [Indexed: 06/13/2023]
Abstract
The Schmidt decomposition is exploited to study the spatial entanglement of laser transverse modes analogous to quantum Lissajous states. Based on the inverse Fourier transform, the stationary Lissajous state can be analytically derived as a coherent superposition of degenerate Hermite-Gaussian eigenmodes. With the derived stationary state, the Schmidt modes and the participation number N can be employed to evaluate the spatial localization and the quantum entanglement. The larger the participation number, the more localized is the stationary coherent state on the Lissajous figure. Moreover, the larger the participation number, the higher is the spatial entanglement.
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22
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Huang XM, Liu XH, Huang LY, Cai ZR, Chen YF, Wu XJ. [Risk factors of peritoneal metastasis in primary appendiceal tumor]. Zhonghua Zhong Liu Za Zhi 2021; 43:806-809. [PMID: 34289577 DOI: 10.3760/cma.j.cn112152-20200901-00784] [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 risk factors of peritoneal metastasis in primary appendiceal tumor. Methods: The clinic data of 71 patients with primary appendiceal tumor admitted in the Sixth Affiliated Hospital of Sun Yat-sen University between Dec 2012 and Jan 2019 were enrolled retrospectively. Multivariate logistic regression analysis were carried out to evaluate the risk factors of appendiceal tumor with peritoneal metastasis. Results: Of the 71 patients, 33 were peritoneal metastasis (peritoneal metastasis group) and 38 were non-peritoneal metastasis (no peritoneal metastasis group). Twenty-one patients in the peritoneal metastasis group had increased preoperative cancer embryo antigen (CEA), while 3 cases in the non-peritoneal metastasis group, with statistically significant difference (P<0.001). Sixteen cases in peritoneal metastasis group had increased preoperative carbohydrate antigen 199, while only 2 cases in the non-peritoneal metastasis group, the difference was statistically significant (P<0.001). The pathological type of 30 cases in the peritoneal metastasis group was adenocarcinoma (including mucus adenocarcinoma and colon adenocarcinoma), while 12 cases of adenocarcinoma in the non-peritoneal metastasis group, with statistically significant difference (P<0.001). Twelve cases in the peritoneal metastasis group had lymph node metastasis, while 3 cases in the non-peritoneal metastasis group, the difference is statistically significant (P=0.003). Preoperative CEA elevation and pathological type is adenocarinoma were independent risk factors for peritoneal metastasis of appendiceal cancer (P<0.05). Conclusions: The propensity of peritoneal metastasis in primary appendiceal tumor is high and the outcome is poor. Patients with increased preoperative CEA, adenocarcinoma histopathology are more inclined to have peritoneal metastasis.
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Affiliation(s)
- X M Huang
- Department of Coloretcal Surgery, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China
| | - X H Liu
- Department of Coloretcal Surgery, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China
| | - L Y Huang
- Department of Coloretcal Surgery, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China
| | - Z R Cai
- Department of Coloretcal Surgery, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China
| | - Y F Chen
- Department of Coloretcal Surgery, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China
| | - X J Wu
- Department of Coloretcal Surgery, the Sixth Affiliated Hospital of Sun Yat-sen University, Guangzhou 510655, China
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Huang LY, Zhang DL, Fu RF, Liu W, Chen YF, Xue F, Liu XF, Bi TT, Yang RC, Zhang L. [Analysis of gene mutation spectrum and pharmacokinetics of fibrinogen infusion in 146 cases of congenital fibrinogen disorders]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:555-562. [PMID: 34455742 PMCID: PMC8408493 DOI: 10.3760/cma.j.issn.0253-2727.2021.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical type and gene mutations, clinical manifestations, laboratory tests, diagnosis, and fibrinogen replacement therapy of congenital fibrinogen disorders. Methods: Clinical data of 146 patients with congenital fibrinogen disorders diagnosed from April 2000 to November 2020 were retrospectively analyzed. Results: Among the 146 patients, 61 (41.8%) men and 85 (58.2%) women had a median age of 33.5 years at the time of consultation. 34 patients (34.7%) were found to suffer from the disease due to bleeding symptoms, 33 patients (33.7%) due to preoperative examination. 55 patients (56.1%) had at least one bleeding symptom, and 42 patients (42.9%) had no bleeding symptoms. There is a negative correlation between fibrinogen activity concentration and bleeding ISTH-BAT score (rs=-0.412, P=0.001) . A total of 34 gene mutations were detected in 56 patients, of which 84.1% were missense mutations, and 16 new mutations were found. FGA Exon2 and FGG Exon8 mutations accounted for 71.4% of all mutation sites. Patients with afibrinogenemia were younger, with a median age of 2 (1-12) years, an ISTH-BAT score of 4, and patients with dysfibrinogenemia had significantly longer thrombin time (TT) , with a median of 28.5 (19.2-36.6) s. The 1 hour in vivo recovery (IVR) after fibrinogen infusion was (127.19±44.03) %, and the 24 hour IVR was (101.78±43.98) %. In addition to the obvious increase in the concentration of fibrinogen activity, the TT and the prothrombin time (PT) both decreased significantly, and the TT decreased more significantly, with an average decrease of 15.2% compared to the baseline after 24 hours of infusion. Conclusion: Most patients with congenital fibrinogen disorders have mild or no bleeding symptoms. Patients with afibrinogenemia have more severe symptoms. There is a negative correlation between the fibrinogen and the degree of bleeding. Genetic testing is helpful for the diagnosis of disease classification. FIB∶C/FIB∶Ag<0.7 can be used as a basis for clinical diagnosis. The TT can be used as the basis for the diagnosis of dysfibrinogenemia and the effectiveness of fibrinogen infusion.
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Affiliation(s)
- L Y Huang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin Laboratory of Blood Disease Gene Therapy, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - D L Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin Laboratory of Blood Disease Gene Therapy, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - R F Fu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin Laboratory of Blood Disease Gene Therapy, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin Laboratory of Blood Disease Gene Therapy, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y F Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin Laboratory of Blood Disease Gene Therapy, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - F Xue
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin Laboratory of Blood Disease Gene Therapy, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - X F Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin Laboratory of Blood Disease Gene Therapy, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - T T Bi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin Laboratory of Blood Disease Gene Therapy, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - R C Yang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin Laboratory of Blood Disease Gene Therapy, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin Laboratory of Blood Disease Gene Therapy, CAMS Key Laboratory of Gene Therapy for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
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Hsiao JQ, Huang YJ, Lee CC, Yu YT, Tsou CH, Liang HC, Chen YF. Powerful Q-switched Raman laser at 589 nm with a repetition rate between 200 and 500 kHz. Opt Lett 2021; 46:2063-2066. [PMID: 33929419 DOI: 10.1364/ol.423371] [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] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
We demonstrate a highly powerful acousto-optically Q-switched Nd:YVO4 yellow laser at 589 nm by using a Np-cut KGW crystal and a phase-matching lithium triborate crystal to performance the intracavity stimulated Raman scattering and second-harmonic generation, respectively. We experimentally verify that the design of the separate cavity is superior to the conventional design of the shared cavity. By using the separate cavity, the optical-to-optical efficiency can be generally higher than 32% for the repetition rate within 200-500 kHz. The maximum output power at 589 nm can be up to 15.1 W at an incident pump power of 40 W and a repetition rate of 400 kHz.
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Zhang HL, Feng ZC, Cheng Y, Zhao Z, Chen YF, Liu CJ, Cheng DL, Shi CS, Wang F, Wang J, Jin YP, Yin Y, Lu GP, Hong XY. [Risk factors for mortality in pediatric acute respiratory distress syndrome requiring extracorporeal membrane oxygenation support]. Zhonghua Er Ke Za Zhi 2021; 59:380-386. [PMID: 33902222 DOI: 10.3760/cma.j.cn112140-20210222-00148] [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 explore the risk factors for mortality in pediatric acute respiratory distress syndrome (PARDS) requiring extracorporeal membrane oxygenation (ECMO) support. Methods: Clinical data of 109 patients with severe PARDS supported by ECMO, who were hospitalized in 6 ECMO centers in China from September 2012 to February 2020, were retrospectively analyzed. They were divided into survival group and death group according to the prognosis. Chi-square test and rank sum test were used to compare the variables between the two groups, including the demographic data, laboratory examination results, clinical data before and after ECMO, and other supportive treatment. Univariate and multivariate Logistic regression models were used to analyze the prognostic risk factors. Results: In these 109 cases, 54 died and 55 survived. Compared with the survival group, the death group had higher incidences of acute kidney injury (AKI) (48.1% (26/54) vs. 21.8% (12/55), χ²=8.318, P=0.004) and coagulation dysfunction (22.2% (12/54) vs. 7.3% (4/55), χ²=4.862, P=0.027), and higher rate of renal replacement therapy (48.1% (26/54) vs. 21.8% (12/55), χ²=9.694, P=0.008) during ECMO support. Logistic regression analysis showed that continuous renal replacement therapy (CRRT) and AKI were independent risk factors for death in patients with severe PARDS requiring ECMO support (HR=3.88,95%CI 1.04-14.52, HR=4.84,95%CI 1.21-19.46, both P<0.05). Conclusion: AKI and CRRT are independent risk factors for predicting mortality in patients with severe PARDS requiring ECMO support.
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Affiliation(s)
- H L Zhang
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China
| | - Z C Feng
- Pediatric Intensive Care Unit, Department of Pediatrics, People's Liberation Army General Hospital, the Second School of Clinical Medicine, Southern Medical University, Beijing 100700, China
| | - Y Cheng
- Pediatric Intensive Care Unit, Children's Hospital of Fudan University, Shanghai 201102, China
| | - Z Zhao
- Pediatric Intensive Care Unit, Department of Pediatrics, People's Liberation Army General Hospital, the Second School of Clinical Medicine, Southern Medical University, Beijing 100700, China
| | - Y F Chen
- Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - C J Liu
- Pediatric Intensive Care Unit, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - D L Cheng
- Pediatric Intensive Care Unit, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - C S Shi
- Pediatric Intensive Care Unit, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - F Wang
- Pediatric Surgical Intensive Care Unit, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou 450053, China
| | - J Wang
- Pediatric Surgical Intensive Care Unit, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou 450053, China
| | - Y P Jin
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - Y Yin
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan 250021, China
| | - G P Lu
- Pediatric Intensive Care Unit, Children's Hospital of Fudan University, Shanghai 201102, China
| | - X Y Hong
- Pediatric Intensive Care Unit, Department of Pediatrics, People's Liberation Army General Hospital, the Second School of Clinical Medicine, Southern Medical University, Beijing 100700, China
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Zhang DL, Xue F, Dou XQ, Liu XF, Fu RF, Chen YF, Liu W, Jia YJ, Wang YH, Xiao ZJ, Zhang L, Yang RC. [Clinical and genetic analyses of hereditary factor Ⅴ deficiency cases]. Zhonghua Xue Ye Xue Za Zhi 2021; 42:302-307. [PMID: 33979974 PMCID: PMC8120128 DOI: 10.3760/cma.j.issn.0253-2727.2021.04.006] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical phenotype and molecular pathogenesis of nine patients with hereditary factor Ⅴ (FⅤ) deficiency. Methods: Nine patients with hereditary FⅤ deficiency who were admitted to the Institute of Hematology and Blood Diseases Hospital from April 1999 to September 2019 were analyzed. The activated partial thromboplastin time, prothrombin time, and FⅤ procoagulant activity (FⅤ∶C) were measured for phenotypic diagnosis. High-throughput sequencing was employed for the F5 gene mutation screening, Sanger sequencing was adopted to confirm candidate variants and parental carrying status, Swiss-model was used for three-dimensional structure analysis, and ClustalX v.2.1 was used for homologous analysis. Results: The FⅤ∶C of the nine patients ranged from 0.1 to 10.6. Among them, eight had a hemorrhage history, with kin/mucosal bleeding as the most common symptom (three cases, 37.5%) , whereas one case had no bleeding symptom. There were five homozygotes and four compound heterozygotes. A total of 12 pathogenic or likely pathogenic mutations were detected, of which c.6100C>A/p.Pro2034Thr, c.6575T>C/p.Phe2192Ser, c.1600_1601delinsTG/p. Gln534*, c.4713C>A/p.Tyr1571*, and c.952+5G>C were reported for the first time. Conclusion: The newly discovered gene mutations enriched the F5 gene mutation spectrum associated with hereditary FⅤ deficiency. High-throughput sequencing could be an effective method to detect F5 gene mutations.
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Affiliation(s)
- D L Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - F Xue
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - X Q Dou
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - X F Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - R F Fu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y F Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y J Jia
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y H Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Z J Xiao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - R C Yang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
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Chen YF, Hsieh MX, Tu YC, Lee CC, Yu YT, Tsou CH, Liang HC. Pedagogically fast model to evaluate and optimize passively Q-switched Nd-doped solid-state lasers. Opt Lett 2021; 46:1588-1591. [PMID: 33793494 DOI: 10.1364/ol.422382] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
The coupled rate equations with the spatial overlap effect for four-level passively Q-switched lasers are fully considered. A transcendental equation is derived for the residual fraction of the inversion density after the finish of the Q-switched pulse. Comprehensive calculations for the transcendental equation were executed to attain an analytical function for precisely fitting the residual fraction of the inversion density. With the fitting function, a pedagogical model with the correction for high output coupling is developed to straightforwardly analyze the output pulse energy and peak power. Detailed experiments are carried out to validate the model.
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Wang K, Chen YF, Wang HB, Zhang J, Liu Q, Yang ZY, Xing X, An SL, Lin JH. [Effects of neuromuscular exercise therapy on the joint stability of patients with knee osteoarthritis]. Zhonghua Yi Xue Za Zhi 2021; 101:786-791. [PMID: 33765719 DOI: 10.3760/cma.j.cn112137-20200619-01897] [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 evaluate the effects of neuromuscular exercise therapy on joint stability of knee osteoarthritis (OA) patients. Methods: One hundred and ten patients with knee OA were enrolled in this ongoing prospective cohort study at Arthritis Clinic and Research Center, Peking University People's Hospital from September 2017 to October 2018. The treatment consisted of six-week neuromuscular exercise therapy. The participants were followed up at 6 weeks and 3 months after the therapy. The stability of the joint was evaluated by the index of knee joint stability (IKJS), which was extracted by a novel knee-aiming task combined with the multiscale entropy (MSE) analysis of the complexity of the light spot trajectories. The secondary outcomes were pain on the visual analogue scale (VAS, 0-100), the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), quality of life on the Euro-quality of life-5 Dimensional (EQ-5D) VAS form, 30-second chair stand test and 40-meter walk test. One-way repeated measures ANOVA analysis was applied to compare the outcomes at baseline and 6 weeks and 3 months. Pearson partial analysis was used to investigate the correlation between the IKJS and the Kellgren-Lawrence (K/L) rate, pain and knee function. Results: Ninety-six participants ((65±8) years, 21 males, 75 females) completed 3-month follow-up. There was a significant improvement in IKJS at the 6-week visit compared with that at baseline (0.369, 95% confidence interval (CI) 0.241-0.496, P<0.001). The IKJS dropped at 3-month visit compared with 6-week visit, but was still better than that at baseline (0.178, 95%CI: 0.042-0.314, P=0.008). The correlation between IKJS and K/L rate, severity of pain, WOMAC or knee function was not significant (r=-0.131, -0.059, -0.231, 0.124, all P>0.05). There was improvement in pain VAS, WOMAC, EQ-5D-VAS, 30-second chair stand test and 40-meter walk test at 6 weeks and 3 months (all P<0.05). Conclusion: The neuromuscular exercise therapy is effective in improving the joint stability of the knee OA patients. However, the effect gradually diminished over time. In addition, neuromuscular exercise can help relieve pain, improve the function and quality of life in patients with knee OA.
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Affiliation(s)
- K Wang
- Arthritis Clinic and Research Center, Peking University People's Hospital, Beijing 100044, China
| | - Y F Chen
- Trauma Rescue and Treatment Center, Peking University People's Hospital, Beijing 100044, China
| | - H B Wang
- Academy for Advanced interdisciplinary Studies, Peking University, Beijing 100871, China
| | - J Zhang
- Academy for Advanced interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Q Liu
- Arthritis Clinic and Research Center, Peking University People's Hospital, Beijing 100044, China
| | - Z Y Yang
- Arthritis Clinic and Research Center, Peking University People's Hospital, Beijing 100044, China
| | - X Xing
- Arthritis Clinic and Research Center, Peking University People's Hospital, Beijing 100044, China
| | - S L An
- Arthritis Clinic and Research Center, Peking University People's Hospital, Beijing 100044, China
| | - J H Lin
- Arthritis Clinic and Research Center, Peking University People's Hospital, Beijing 100044, China
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Zhou F, Zhang K, Cai ZW, Chen YF, Zeng XB, He XZ, Hu XD, Wen Q, Yu RY, Huang LP. [Study on time-toxicity relationship and mechanism of Gardeniae Fructus extract on hepatoxicity in rats based on proteomics]. Zhongguo Zhong Yao Za Zhi 2021; 46:162-170. [PMID: 33645066 DOI: 10.19540/j.cnki.cjcmm.20200901.402] [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: 11/18/2022]
Abstract
To study the time-toxicity relationship and mechanism of Gardeniae Fructus extract on the hepatoxicity in rats. Rats were randomly divided into C group(0 day), D5 group(5 days), D12 group(12 days), D19 group(19 days), and D26 group(7 days recovery after 19 days of administration). The rats in normal group received normal saline through intragastric administration, and the rats in other groups received 10 g·kg~(-1 )Gardeniae Fructus extract through intragastric administration. After the final administration, the livers were collected. Hematoxylin-eosin staining was used to observe the histopathological changes in the liver tissue. Total liver proteins were extracted for proteomic analysis, detected by the Nano-ESI liquid-mass spectrometry system and identified by Protein Disco-very software. SIEVE software was used for relative quantitative and qualitative analysis of proteins. The protein-protein interaction network was constructed based on STRING. Cytoscape software was used for cluster analysis of differential proteins. Kyoto encyclopedia of genes and genomes(KEGG) database was used to perform enrichment signal pathway analysis. Pearson correlation analysis was performed for the screened differential protein expression and liver pathology degree score. The results showed that the severity of liver injury in D5, D12 and D19 groups was significantly higher than that in group C. The degree of liver damage in D5 group was slightly higher than that in D12 and D19 groups, with no significant difference between group D26 and group C. Totally 147 key differential proteins have been screened out by proteomics and mainly formed 6 clusters, involving in drug metabolism pathways, retinol metabolism pathways, proteasomes, amino acid biosynthesis pathways, and glycolysis/gluconeogenesis pathways. The results of Pearson correlation analysis indicated that differential protein expressions had a certain temporal relationship with the change of liver pathological degree. The above results indicated that the severity of liver damage caused by Gardeniae Fructus extract did not increase with time and would recover after drug with drawal. The above pathways may be related to the mechanism of liver injury induced by Gardeniae Fructus extract.
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Affiliation(s)
- Feng Zhou
- Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
| | - Kai Zhang
- Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
| | - Zhi-Wei Cai
- Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
| | - Yin-Fang Chen
- Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China Jiangxi Province Key Laboratory of Traditional Chinese Medicine Pharmacology Nanchang 330004, China
| | - Xiao-Bo Zeng
- Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
| | - Xi-Zhe He
- Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
| | - Xiao-Die Hu
- Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
| | - Qing Wen
- Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China
| | - Ri-Yue Yu
- Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China Jiangxi Province Key Laboratory of Traditional Chinese Medicine Pharmacology Nanchang 330004, China
| | - Li-Ping Huang
- Jiangxi University of Traditional Chinese Medicine Nanchang 330004, China Jiangxi Province Key Laboratory of Traditional Chinese Medicine Pharmacology Nanchang 330004, China
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30
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Chen YF, Li D, Lee YM, Lee CC, Huang HY, Tsou CH, Liang HC. Highly efficient solid-state Raman yellow-orange lasers created by enhancing the cavity reflectivity. Opt Lett 2021; 46:797-800. [PMID: 33577517 DOI: 10.1364/ol.415437] [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] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/08/2021] [Indexed: 06/12/2023]
Abstract
A new, to the best of our knowledge, output coupler (OC) with enhancement of the cavity reflectivity is proposed to remarkably elevate the output powers and efficiencies of diode-pumped Nd:GdVO4/KGW Raman yellow-orange lasers. The cavity reflectivity is effectively increased by using the double-sided dichroic coating on the OC. In comparison with the conventional single-sided coating, the conversion efficiency can be boosted from 15% to 26.3% in the experiment of a yellow laser at 578.8 nm, and the maximum output power can be increased from 5.7 to 10.5 W in the quasi-continuous-wave mode with 50% duty cycle and frequency of 500 Hz. Furthermore, in the operation of an orange laser at 588 nm, the maximum output power can be improved from 5.6 to 7.0 W by replacing the conventional OC with the new one.
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31
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Zhu YX, Zhu L, Chen YF, Xu JM, Shne ZL, Liu RJ, Zou J, Yuan MQ, Ye F, Zeng QQ. Luteoloside Ameliorates Palmitic Acid-Induced in Vitro Model of Non-alcoholic Fatty Liver Disease via Activating STAT3-Triggered Hepatocyte Regeneration. Folia Biol (Praha) 2021; 67:126-133. [PMID: 35151246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Luteoloside (Lute), a bioactive natural ingredient, widely exists in nature and possesses hepatoprotective and hepatocyte proliferation-promoting properties. This study aimed to investigate whether Lute could counteract non-alcoholic fatty liver disease (NAFLD)-caused hepatocyte damage via its stimulation of hepatocyte regeneration efficacy and to explore the involved mechanism. LO2 cells and primary hepatocytes were used to examine the hepatocyte proliferation effects of Lute under physiological conditions and in the palmitic acid (PA)- induced in vitro model of NAFLD. STAT3 and cell cycle-related proteins (cyclin D1, c-myc and p21) were evaluated by Western blot. Under physiological conditions, LO2 cells and primary hepatocytes treated with various concentration of Lute for 12 and 24 h showed increased hepatocyte proliferation, especially with 20 μM treatment for 24 h. More notably, under the model conditions, co-incubation with 20 μM of Lute also markedly reversed PA-induced inhibition of cell proliferation and viability in primary hepatocytes. Mechanistically, Lute could activate STAT3 and subsequently increase cyclin D1 and cmyc expression, which positively regulates cell cycle progression, and decrease expression of p21, an inhibitor of cell cycle progression. Furthermore, Luteinduced hepatocyte proliferation-promoting efficacy was abolished by STAT3 inhibitor stattic. Collectively, Lute can alleviate PA-induced hepatocyte damage via activating STAT3-mediated hepatocyte regeneration.
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Affiliation(s)
- Y X Zhu
- Department of Pharmacy, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangshu, China
| | - L Zhu
- Department of Pharmacy, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangshu, China
| | - Y F Chen
- Department of Pharmacy, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangshu, China
| | - J M Xu
- Department of Pharmacy, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangshu, China
| | - Z L Shne
- Department of Pharmacy, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangshu, China
| | - R J Liu
- Department of Pharmacy, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangshu, China
| | - J Zou
- Department of Pharmacy, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangshu, China
| | - M Q Yuan
- Department of Pharmacy, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangshu, China
| | - F Ye
- Department of Pharmacy, Affiliated Kunshan Hospital of Jiangsu University, Kunshan 215300, Jiangshu, China
| | - Q Q Zeng
- Jiangsu Health Vocational College; Nanjing 210023, China
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Chen YF, Tu YC, Li SC, Hsieh MX, Yu YT, Liang HC, Huang KF. Propagation-dependent evolution of interfering multiple beams and kaleidoscopic vortex lattices. Opt Lett 2021; 46:102-105. [PMID: 33362018 DOI: 10.1364/ol.415414] [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] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 11/26/2020] [Indexed: 06/12/2023]
Abstract
In this Letter, we experimentally explore the propagation-dependent evolution of generating the pseudo-nondiffracting quasi-crystalline (crystalline) beams based on the multibeam interference. We originally derived an analytical formula to exactly manifest the propagation evolution of interfering multiple beams. With the analytical formula, the formation of quasi-crystalline structures in the focal plane can be explicitly verified. Furthermore, the distance of the effective propagation-invariant region can be verified in terms of experimental parameters. More importantly, we employed the developed formula to confirm the formation of kaleidoscopic vortex lattices by means of numerically computing the propagation-dependent phase singularities.
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Hao E, Chang LY, Wang DH, Chen YF, Huang RI, Chen H. Dietary Supplementation with Ferula Improves Productive Performance, Serum Levels of Reproductive Hormones, and Reproductive Gene Expression in Aged Laying Hens. Braz J Poult Sci 2021. [DOI: 10.1590/1806-9061-2020-1319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- E Hao
- Hebei Agricultural University, China
| | - LY Chang
- Hebei Agricultural University, China
| | - DH Wang
- Hebei Agricultural University, China
| | - YF Chen
- Hebei Agricultural University, China
| | - RI Huang
- Hebei Agricultural University, China
| | - H Chen
- Hebei Agricultural University, China
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Chen YF, Huang HY, Lee CC, Hsiao JQ, Tsou CH, Liang HC. High-power diode-pumped Nd:GdVO 4/KGW Raman laser at 578 nm. Opt Lett 2020; 45:5562-5565. [PMID: 33001947 DOI: 10.1364/ol.406173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 09/04/2020] [Indexed: 06/11/2023]
Abstract
A diode-pumped neodymium-doped gadolinium vanadate (Nd:GdVO4) laser is developed as a compact efficient yellow light at 578 nm by means of intracavity stimulated Raman scattering (SRS) in a potassium gadolinium tungstate (KGW) crystal and the second-harmonic generation in a lithium triborate crystal. The SRS process with a shift of 768cm-1 is achieved by setting the polarization of the fundamental wave along the Ng axis of the KGW crystal. The self-Raman effect arising from the Nd:GdVO4 crystal is systematically explored by employing two kinds of coating specification for the output coupler. With a specific coating on the output coupler to suppress the self-Raman effect, the maximum output power at 578 nm can reach 3.1 W at a pump power of 32 W. Moreover, two different lengths for the Nd:GdVO4 crystal are individually used to verify the influence of the self-Raman effect on the lasing efficiency.
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Chen YF, Chen CM, Lee CC, Huang HY, Li D, Hsiao JQ, Tsou CH, Liang HC. Efficient solid-state Raman yellow laser at 579.5 nm. Opt Lett 2020; 45:5612-5615. [PMID: 33001961 DOI: 10.1364/ol.405970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 09/04/2020] [Indexed: 06/11/2023]
Abstract
A highly efficient diode-pumped Nd:YVO4/KGW Raman yellow laser is developed to produce a 6.8 W yellow light at 579.5 nm accompanied by a 3.2 W Stokes wave at 1159 nm under an incident pump power of 30 W. The intracavity stimulated Raman scattering with the shift of 768cm-1 is generated by setting the polarization of the fundamental wave along the Ng direction of an Np-cut KGW crystal. The Nd:YVO4 gain medium is coated as a cavity mirror to reduce the cavity losses for the fundamental wave. More importantly, the KGW crystal is specially coated to prevent the Stokes wave from propagating through the gain medium to minimize the cavity losses for the Stokes wave.
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Chen YF, Huang ZY, Wang D, Zhao Y, Fu JH, Pang M, Leng YX, Xu ZZ. Single-scan, dual-functional interferometer for fast spatio-temporal characterization of few-cycle pulses. Opt Lett 2020; 45:5081-5084. [PMID: 32932458 DOI: 10.1364/ol.403575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
Accurate and fast characterization of spatio-temporal information of high-intensity, ultrashort pulses is crucial in the field of strong-field laser science and technology. While conventional self-referenced interferometers were widely used to retrieve the spatial profile of the relative spectral phase of pulses, additional measurements of temporal and spectral information at a particular position of the laser beam, however, were necessary to remove the indeterminacy, which increases the system complexity. Here we report an advanced, dual-functional interferometer that is able to reconstruct the complete spatio-temporal information of ultrashort pulses with a single scan of the interferometer arm. The setup integrates an interferometric frequency-resolved optical gating (FROG) with a radial shearing Michelson interferometer. Through scanning one arm of the interferometer, both the cross-correlated FROG trace at the central part of the laser beam and the delay-dependent interferograms of the entire laser profile are simultaneously obtained, allowing a fast three-dimensional reconstruction of few-cycle laser pulses.
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Chen YF, Tseng YC, Ke HT, Hsieh MX, Tung JC, Hsieh YH, Liang HC, Huang KF. High-power structured laser modes: manifestation of quantum Green's function. Opt Lett 2020; 45:4579-4582. [PMID: 32797014 DOI: 10.1364/ol.401199] [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] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 07/17/2020] [Indexed: 06/11/2023]
Abstract
The distributions of resonant frequencies in an astigmatic cavity are theoretically confirmed to be analogously equivalent to the quantum energy structures of two-dimensional commensurate harmonic oscillators. In the first part [Opt. Lett.45, 4096 (2020)OPLEDP0146-959210.1364/OL.399251] of this two-part series study, the lasing modes were verified to reveal a variety of vortex array structures. Here, in the second part of this two-part series study, the lasing modes are confirmed to agree very well with the quantum Green's functions that correspond to a bundle of Lissajous figures in the high-order regime.
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Qu CY, Zhang DL, Liu XF, Xue F, Liu W, Chen YF, Fu RF, Zhang L, Yang RC. [Congenital factor Ⅶ deficiency: a retrospective analysis of 43 cases]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:394-398. [PMID: 32536136 PMCID: PMC7342067 DOI: 10.3760/cma.j.issn.0253-2727.2020.05.006] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the pathogenesis, clinical characteristics, laboratory findings, diagnosis, treatment, and prognosis of congenital factor Ⅶ (FⅦ) deficiency. Methods: Clinical data of 43 patients with congenital FⅦ deficiency diagnosed from April 1999 to September 2019 were retrospectively analyzed. Results: There were 27 females and 16 males. Median age was 16 (1-70) years. Family history was found in 6 cases. There were 29 (67.4%) cases with bleeding symptoms, most common of which were mucocutaneous bleeding (13 cases, 30.2%) , oral bleeding (13 cases, 30.2%) , and epistaxis (9 cases, 20.9%) . Menorrhagia occurred in 11 cases (47.6% of female patients who were in fertile age) . Laboratory findings were characterized by significantly prolonged prothrombin time (PT) , normal partial thromboplastin time (APTT) , and decreased FⅦ activity (FⅦ∶C) . Ten cases received gene mutation analysis and 3 new mutations were found. Fourteen cases (32.6%) were treated with prothrombin complex concentrates (PCC) , 12 (27.9%) with fresh frozen plasma (FFP) , and 3 (7.0%) with human recombinant activated FⅦ (rFⅦa) . Twenty cases (46.5%) with no or mild bleeding symptoms did not receive any replacement therapy. Previous bleeding symptoms recurred in 5 patients (11.6%) , 8 females still had heavy menstrual bleeding, and 9 patients (20.9%) were lost to follow-up. Conclusion: Most patients with congenital FⅦ deficiency have mild or no bleeding symptoms, but have a tendency to excessive bleeding after surgery or trauma. There is no significant correlation between FⅦ∶C and severity of bleeding symptoms. Prophylaxis should be applied in patients with severe bleeding symptoms and rFⅦa is the first choice. Gene mutation test is significant for screening, diagnosis, and prognosis prediction of the disease.
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Affiliation(s)
- C Y Qu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - D L Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - X F Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - F Xue
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y F Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - R F Fu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - R C Yang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
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Chen YF, Lee CC, Hsiao JQ, Huang HY, Tsou CH, Liang HC, Huang KF. Exploiting a monolithic passively Q-switched Nd:YAG laser to mimic a single neuron cell under periodic stimulation. Opt Lett 2020; 45:4032-4035. [PMID: 32667347 DOI: 10.1364/ol.399253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 06/20/2020] [Indexed: 06/11/2023]
Abstract
A monolithic passively Q-switched Nd:YAG laser under periodic pulse pumping is originally exploited to emulate the response of a single neuron cell stimulated by periodic pulse inputs. Experimental results reveal that the output characteristics of the monolithic passively Q-switched laser can analogously manifest not only the firing patterns but also the frequency-locked plateaus of the single neuron cell. Moreover, the sine circle map is innovatively used to generate the output pulse sequences that can exactly correspond to experimental firing patterns. The present exploration indicates that a monolithic passively Q-switched solid-state laser is highly feasible to be developed as a compact artificial neuron cell.
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Chen YF, Ke HT, Tseng YC, Hsieh MX, Tung JC, Hsieh YH, Liang HC, Huang KF. High-power structured laser modes: direct generation of a vortex array. Opt Lett 2020; 45:4096-4099. [PMID: 32667363 DOI: 10.1364/ol.399251] [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] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 06/14/2020] [Indexed: 06/11/2023]
Abstract
The frequency degeneracy induced by the astigmatism in a nearly hemispherical cavity is originally exploited to generate vortex array laser modes with the output power up to 300 mW. The inhomogeneous Helmholtz equation is employed to derive the wave function for manifesting the characteristics of the lasing modes. The theoretical wave function explicitly reveals the role of the Gouy phase in the formation of vortex arrays. Numerical analyses are further performed to confirm that the thermal lensing effect in the laser crystal assists the lasing transverse order to increase with increasing pump power. It is believed that the high efficiency enables the present laser modes to be useful in the applications of structured vortex beams.
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Wang XY, Liu XF, Xue F, Liu W, Chen YF, Huang YT, Fu RF, Zhang L, Yang RC. [Clinical characteristics of 83 patients with thrombotic thrombocytopenic purpura]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:216-221. [PMID: 32311891 PMCID: PMC7357935 DOI: 10.3760/cma.j.issn.0253-2727.2020.03.006] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical characteristics, treatment and prognosis of patients with thrombotic thrombocytopenic purpura (TTP) . Methods: 83 patients with TTP from May 1998 to May 2019 were analyzed retrospectively. Results: Among the 83 patients, there were 27 males and 56 females, with a median age of 39 (10-68) years. 41 cases (49.4%) showed pentalogy syndrome and 79 cases (95.2%) showed triad syndrome. 78.0% (46/59) of the patients had a PLASMIC score of 6 or higher. TTP gene mutations was detected in 5 of 10 patients. The activity of von Willebrand factor-cleaving protease (ADAMTS13) , which was detected in 10 patients before plasma exchange (PEX) , was less than 10% in 9 patients. 83 patients were treated with PEX/plasma infusion and glucocorticoid, 35 of which were treated combined with rituximab and/or immunosuppressant. The median follow-up was 34 (1-167) months, the effective rate was 81.9%, the remission rate was 63.9%, the relapse rate was (35.7 ±7.1) %, and the 3-year overall survival (OS) rate was (78.6 ±4.6) %. The effective rate (72.9%vs 94.3%, P=0.019) and OS rate[ (63.8±7.5) %vs (94.3±3.9) %, χ(2)=8.450, P=0.004] in the group treated with PEX/PI and glucocorticoid alone were lower than those in the group treated combined with rituximab and/or immunosuppressant. COX multivariate analysis showed that age (HR=1.111, 95%CI 1.044-1.184, P=0.001) and alanine transaminase (ALT) /aspartate aminotransferase (AST) (HR=1.353, 95%CI 1.072-1.708, P=0.011) were independent risk factors for OS. Conclusion: Most patients with TTP have triad syndrome, accompanied by a decrease in ADAMTS13 activity. Plasma infusion and glucocorticoid combined with rituximab, immunosuppressive therapy could improve overall survival. The prognosis of patients with older age and high ALT/AST ratio is poor.
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Affiliation(s)
- X Y Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - X F Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - F Xue
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - W Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y F Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y T Huang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - R F Fu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - R C Yang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
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Chen YF, Chien PY, Lee CC, Huang KF, Liang HC. Timing jitter reduction of passively Q-switched solid-state lasers by coupling resonance between pumping and firing rates. Opt Lett 2020; 45:2902-2905. [PMID: 32412497 DOI: 10.1364/ol.394613] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 04/25/2020] [Indexed: 06/11/2023]
Abstract
The coupling resonance between pumping and firing rates is originally proposed to achieve the timing jitter reduction of a Nd:YVO4 laser passively Q-switched with a saturable absorber. When the pumping rate is higher than the spontaneous emission rate, it is experimentally confirmed that the pulse firing rate can be fractionally locked with the pumping rate by controlling the pump power. The locking characteristics of the firing rate display a variety of complex plateaus that can be excellently manifested with the sine-circle map. From numerical analyses, the coupling strength can be verified to be effectively enhanced by reducing the duty cycle of the pumping rate.
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Chen YF, Chen KY, Liu YC, Chen CM, Tsou CH, Liang HC. Criterion for optimizing high-power acousto-optically Q-switched self-Raman yellow lasers with repetition rates up to 500 kHz. Opt Lett 2020; 45:1922-1925. [PMID: 32236033 DOI: 10.1364/ol.390991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 02/25/2020] [Indexed: 06/11/2023]
Abstract
The criterion for optimizing the high-power acousto-optically ${Q}$Q-switched self-Raman yellow laser is originally explored for the repetition rate within 100-500 kHz. The minimum allowed value for the gate-open time is experimentally verified to be determined by the pulse buildup time. By using the minimum allowed gate-open time, the highest conversion efficiency can be achieved to raise the output power by approximately 20% in comparison with the conventional results. At a repetition rate of 200 kHz, the maximum output power at 588 nm can be up to 8.8 W at an incident pump power of 26 W. Furthermore, a practical formula is developed to accurately calculate the threshold pump power as a function of the gate-open time for a given repetition rate.
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Liu YC, Chen CM, Hsiao JQ, Pan YY, Tsou CH, Liang HC, Chen YF. Compact efficient high-power triple-color Nd:YVO 4 yellow-lime-green self-Raman lasers. Opt Lett 2020; 45:1144-1147. [PMID: 32108791 DOI: 10.1364/ol.388266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 01/20/2020] [Indexed: 06/10/2023]
Abstract
A novel, to the best of our knowledge, approach is developed to realize a high-power compact efficient yellow-lime-green triple-color ${\rm Nd}:{{\rm YVO}_4}$Nd:YVO4 self-Raman laser. The 588 nm yellow laser, the 559 nm lime laser, and the 532 nm green laser are converted from the 1064 nm fundamental wave and the 1176 nm Stokes Raman field. The simultaneous three-color operation is accomplished with three stages to step-by-step generate the 588 nm, 559 nm, and 532 nm lasers by using three different lithium triborate (LBO) crystals. By tuning the temperature of each individual LBO crystal, the 588 nm, 559 nm, and 532 nm output powers can be nearly the same and concurrently up to 2.4 W at the incident pump power of 30 W, corresponding to a conversion efficiency of 24% for the total output power.
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Wang Z, Xu MZ, Chen YF, Xue F, Zhang L, Hu YM, Li CW, Li SZ, Wang JX, Mi YC. [Therapy-related myeloid neoplasms after successful treatment for acute promyelocytic leukemia: a report of four cases and literature review]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:1008-1014. [PMID: 32023731 PMCID: PMC7342672 DOI: 10.3760/cma.j.issn.0253-2727.2019.12.007] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
目的 探讨急性早幼粒细胞白血病(APL)患者继发治疗相关性髓系肿瘤(t-MN)的临床特点、诊断、治疗及预后。 方法 回顾性分析中国医学科学院血液病医院2012年10月至2019年1月收治的4例APL继发t-MN患者的临床资料,并进行相关文献复习。 结果 4例APL继发t-MN患者均为女性,中位年龄42(40~53)岁,3例接受了以维甲酸(ATRA)+亚砷酸(ATO)为基础联合蒽环/蒽醌类药物±阿糖胞苷的前期诱导缓解及巩固治疗方案,1例采用了ATRA联合蒽环/蒽醌类药物±阿糖胞苷的治疗方案,均没有使用烷化剂。在APL获得完全缓解(CR)后40~43个月出现t-MN,其中治疗相关性骨髓增生异常综合征(t-MDS)1例,治疗相关性急性髓系白血病(t-AML)3例,出现t-MN时PML-RARα融合基因均为阴性。3例t-AML患者接受了2~4个疗程再诱导治疗,其中有1例t-AML患者在获得CR后行异基因造血干细胞移植(allo-HSCT),1例t-MDS患者接受了去甲基化治疗。中位随访54.5(48~62)个月,2例t-AML患者死亡,出现t-MN后中位生存期为12(5~18)个月。1989至2018年文献共报道63例APL继发t-MN病例,与本次报道的4例汇总分析,67例患者中男27例,女40例;中位年龄为52.5(15~76)岁;中位潜伏期39(12~168)个月,确诊t-MN后中位生存时间为10(1~39)个月。 结论 APL继发t-MN较为少见,目前缺乏有效的防治措施,预后不佳,在随访过程中(尤其是获得CR后39个月左右)若出现病情变化,应警惕t-MN的发生,对此类患者应尽快明确疾病的变化,给予合理的治疗。
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Affiliation(s)
- Z Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - M Z Xu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y F Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - F Xue
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - L Zhang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y M Hu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - C W Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - S Z Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - J X Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Y C Mi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Instituteof Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
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Huang YT, Liu XF, Chen YF, Fu RF, Liu W, Xue F, Zhang L, Yang RC. [Eltrombopag for the treatment of primary immune thrombocytopenia in 23 pediatric patients]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:1031-1034. [PMID: 32023736 PMCID: PMC7342689 DOI: 10.3760/cma.j.issn.0253-2727.2019.12.012] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
目的 评估艾曲泊帕治疗儿童原发免疫性血小板减少症(ITP)的疗效和不良反应。 方法 回顾性分析2015年5月至2019年3月接受艾曲泊帕治疗的23例儿童ITP患者临床资料。 结果 23例患者中,男11例,女12例,中位年龄11(2~17)岁。新诊断ITP 4例(17.39%),持续性ITP 8例(34.78%),慢性ITP 11例(47.83%)。艾曲泊帕中位起始剂量为25.0(12.5~50.0)mg/d。基线中位血小板计数为14(2~82)×109/L,治疗后第2周(23例)、第4周(23例)、第3个月(16例)、第6个月(11例)的中位血小板计数分别为40(4~170)×109/L、20(4~130)×109/L、60(4~110)×109/L、70(18~160)×109/L,均高于基线水平(z=-3.440,P=0.001;z=-1.964,P=0.049;z=-4.339,P<0.001;z=-5.794,P<0.001)。7例(30.43%)患者的起效时间≤7 d,10例(43.48%)患者的起效时间≤2周,总有效率为60.87%(14/23)。<6岁(6例)、6~12岁(10例)、13~17岁(7例)组的总有效率分别为33.33%(2/6)、60.00%(6/10)、85.71%(6/7),组间比较差异均无统计学意义(P>0.05)。23例患者基线WHO出血评分0、1、2级分别有4、12、7例,治疗后分别为13、7、3例,出血症状得到明显改善(χ2=7.558,P=0.006)。治疗过程中发生转氨酶、胆红素增高各4例,轻度恶心、呕吐及头晕各1例,对治疗均未造成影响。 结论 艾曲泊帕作为二线用药治疗儿童ITP疗效及耐受性均较好。
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Affiliation(s)
- Y T Huang
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin 300020, China (Huang Yueting is working on the Department of Hematology, the First Affiliated Hospital of Xiamen University, Xianmen 361003, China)
| | - X F Liu
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin 300020, China
| | - Y F Chen
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin 300020, China
| | - R F Fu
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin 300020, China
| | - W Liu
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin 300020, China
| | - F Xue
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin 300020, China
| | - L Zhang
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin 300020, China
| | - R C Yang
- Institute of Hematology & Blood Diseases Hospital, CAMS & PUMC, State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Tianjin 300020, China
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Hsieh YH, Yu YT, Lai YH, Hsieh MX, Chen YF. Integral-based parallel algorithm for the fast generation of the Zernike polynomials. Opt Express 2020; 28:936-947. [PMID: 32121813 DOI: 10.1364/oe.380567] [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] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 12/24/2019] [Indexed: 06/10/2023]
Abstract
The integral representation of the Zernike radial functions is well approximated by applying the Riemann sums with a surprisingly rapid convergence. The errors of the Riemann sums are found to averagely be not exceed 3 ×10-14, 3.3×10-14, and 1.8×10-13 for the radial order up to 30, 50, and 100, respectively. Moreover, a parallel algorithm based on the Riemann sums is proposed to directly generate a set of radial functions. With the aid of the graphics processing units (GPUs), the algorithm shows an acceleration ratio up to 200-fold over the traditional CPU computation. The fast generation for a set of Zernike radial polynomials is expected to be valuable in further applications, such as the aberration analysis and the pattern recognition.
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Chen YF, Tung JC, Hsieh MX, Hsieh YH, Liang HC, Huang KF. Origin of continuous curves and dotted spots in laser transverse modes with geometric structures. Opt Lett 2019; 44:5989-5992. [PMID: 32628200 DOI: 10.1364/ol.44.005989] [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] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 11/06/2019] [Indexed: 06/11/2023]
Abstract
The transverse structures of geometric modes in degenerate laser resonators with large astigmatism are systematically investigated by starting from the Gaussian wave packet formulation with ray-wave connections. The overlapping degree D between Gaussian wave packets is derived as an analytic expression that manifests the critical overlapping with D=1. The transverse patterns are confirmed to display a structure of continuous curves or dotted spots, depending on D>1 or D<1, respectively. A thorough comparison between experimental results and numerical calculations is performed to validate the theoretical analysis.
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Huang ZY, Chen YF, Yu F, Wu DK, Zhao Y, Wang D, Leng YX. Ionization-induced adiabatic soliton compression in gas-filled hollow-core photonic crystal fibers. Opt Lett 2019; 44:5562-5565. [PMID: 31730109 DOI: 10.1364/ol.44.005562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Accepted: 10/21/2019] [Indexed: 06/10/2023]
Abstract
We investigate in the experiments the ionization-induced adiabatic soliton compression process in a short length of He-filled single-ring photonic crystal fiber. We observe that the plasma-driven blueshifting solitons show little residual light near the pump wavelength in a certain pulse energy region, leading to a high-efficiency frequency upconversion process. In contrast, at high pulse energy levels, we observe that the quality of the frequency upshifting process is impaired due to the existence of a dynamical loss channel induced by the coupling of the soliton to linear modes near the pump wavelength. In addition, through adjusting the input pulse energy, the central wavelength of blueshifting solitons can be continuously tuned over 300 nm. These experimental results, confirmed by numerical simulations, not only offer a deep insight into ionization-induced soliton-plasma dynamics in gas-filled hollow-core photonic crystal fibers, but also develop highly tunable ultrafast light sources at visible wavelengths, which may have many applications in ultrafast spectroscopy.
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Chen YF, Tung JC, Hsieh MX, Hsieh YH, Liang HC, Huang KF. Generalized wave-packet formulation with ray-wave connections for geometric modes in degenerate astigmatic laser resonators. Opt Lett 2019; 44:5366-5369. [PMID: 31675008 DOI: 10.1364/ol.44.005366] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/24/2019] [Accepted: 10/09/2019] [Indexed: 06/10/2023]
Abstract
The parametric equations for periodic rays in degenerate astigmatic laser resonators are derived in a generalized way. The derived parametric equations clearly reveal the formation of Lissajous geometric modes with phase variation along the propagation. Using the representation of a quantum coherent state, a generalized wave-packet formula is derived to connect with the periodic rays of geometric modes. The derived wave-packet formula is not only validated through comparing with various experimental patterns, but also is directly exploited to manifest the spatial asymmetries of Lissajous lasing modes due to a highly transmissive output coupler.
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