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Zhang W, Cao YS, Wei MC, Xu J, Bao Z, Yan JX, Chen C, Li JY, Ban ZY, Wang BJ, Zhao X, Zhao C, Zeng XX. [Application of optical coherence tomography in the evaluation of cervical lesions: a multicenter study]. Zhonghua Fu Chan Ke Za Zhi 2024; 59:299-306. [PMID: 38644276 DOI: 10.3760/cma.j.cn112141-20240103-00006] [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: 04/23/2024]
Abstract
Objective: To explore the value of optical coherence tomography (OCT) imaging system in evaluating cervical lesions in vivo. Methods: A total of 1 214 patients with cervical lesions were collected from January 2020 to December 2021 in the Third Affiliated Hospital of Zhengzhou University, Maternal and Chlid Heaith Hospital of Gushi County, Xinyang City, Henan Province, and Maternal and Chlid Heaith Hospital of Sui County, Shangqiu City, Henan Province. The age of the patients was (38.9±10.5) years (range: 16-77 years). All patients underwent in vivo cervical OCT examination and cervical biopsy pathology examination, and summarized the OCT image features of in vivo cervical lesions. Using the pathological diagnosis as the "gold standard", the accuracy, specificity, sensitivity, positive predictive value (PPV) and negative predictive value (NPV) of OCT image interpretation results were evaluated, as well as the consistency of OCT image diagnosis and pathological diagnosis. At the same time, the in vivo cervical OCT imaging system, as a newly developed screening tool, was compared with the traditional combined screening of human papillomavirus (HPV) and Thinprep cytologic test (TCT), to assess the screening effect. Results: By comparing the OCT images of the cervix in vivo with the corresponding HE images, the OCT image characteristics of the normal cervix and various types of cervical lesions in vivo were summarized. The accuracy, sensitivity, specificity, PPV and NPV of OCT image in the diagnosis of high-grade squamous intraepithelial lesion (HSIL) and above (HSIL+) were 93.4%, 88.5%, 95.0%, 85.0% and 96.2%, respectively. The accuracy, sensitivity, specificity, PPV and NPV of OCT for low-grade squamous intraepithelial lesion (LSIL) were 84.7%, 61.7%, 96.3%, 89.3% and 83.2%, respectively. The consistency between OCT image diagnosis and pathological diagnosis was strong (Kappa value was 0.701).The accuracy, sensitivity and specificity of OCT screening, HPV and TCT combined screening were 83.7% vs 64.9% (χ²=128.82, P<0.001), 77.8% vs 64.5% (χ²=39.01, P<0.001), 91.8% vs 65.4% (χ²=98.12, P<0.001), respectively. The differences were statistically significant. Conclusions: OCT imaging system has high sensitivity and specificity in the evaluation of cervical lesions in vivo, and has the characteristics of non-invasive, real-time and high efficiency. OCT examination is expected to become an effective method for the diagnosis of cervical lesions and cervical cancer screening.
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Affiliation(s)
- W Zhang
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y S Cao
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M C Wei
- Department of Pathology, Maternal and Child Health Hospital of Gushi County, Xinyang City, Henan Province, Xinyang 465299, China
| | - J Xu
- Department of Pathology, Maternal and Child Health Hospital of Sui County, Shangqiu City, Henan Province, Shangqiu 476999, China
| | - Z Bao
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J X Yan
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - C Chen
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J Y Li
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Z Y Ban
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - B J Wang
- Department of Gynecology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X Zhao
- Department of Medical Imaging, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Chengquan Zhao
- Department of Pathology, University of Pittsburgh Medical Center, Pennsylvania 19019, USA
| | - X X Zeng
- Department of Pathology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Wang LY, Wang BJ, Gao XY. [Research progress on auxiliary indexes and methods of diagnosis and treatment of patent ductus arteriosus in preterm]. Zhonghua Er Ke Za Zhi 2024; 62:381-384. [PMID: 38527513 DOI: 10.3760/cma.j.cn112140-20231216-00432] [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: 03/27/2024]
Affiliation(s)
- L Y Wang
- Department of Neonatology, Xuzhou Central Hospital (Xuzhou Clinical College of Xuzhou Medical University), Xuzhou 221009, China
| | - B J Wang
- Department of Neonatology, Xuzhou Central Hospital (Xuzhou Clinical College of Xuzhou Medical University), Xuzhou 221009, China
| | - X Y Gao
- Department of Neonatology, Xuzhou Central Hospital (Xuzhou Clinical College of Xuzhou Medical University), Xuzhou 221009, China
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Xu FJ, Zhang L, Miao BH, Wang BJ, Li H, Chen Y, Wang HM. [Research progress on physical activity of childhood cancer survivors]. Zhonghua Yu Fang Yi Xue Za Zhi 2024; 58:177-182. [PMID: 38387947 DOI: 10.3760/cma.j.cn112150-20230913-00187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Many childhood cancer survivors are suffering serious and long-lasting complications or sequelae, taking a significant toll on their health. Adequate physical activity can be effective in mitigating the negative effects of these complications or sequelae. However, low levels of physical activity are prevalent among childhood cancer survivors. Due to the lack of guidelines on physical activity for childhood cancer survivors, there are many difficulties in correctly guiding childhood cancer survivors to participate in physical activity. Therefore, it is necessary to summarize the relevant studies on the physical activity of childhood cancer survivors. This article provides a review of the concept and measurement of physical activity, recommended amount, and the participation of childhood cancer survivors both domestically and internationally, in order to provide a reference for promoting the physical activity level of Chinese childhood cancer survivors.
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Affiliation(s)
- F J Xu
- Department of Nursing, School of Medicine,Shaoxing University, Shaoxing 312000, China
| | - L Zhang
- Department of Social Medicine, School of Public Health, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - B H Miao
- Department of Social Medicine, School of Public Health, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - B J Wang
- Department of Social Medicine, School of Public Health, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - H Li
- Department of Nursing, School of Medicine,Shaoxing University, Shaoxing 312000, China
| | - Y Chen
- Department of Social Medicine, School of Public Health, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - H M Wang
- Department of Social Medicine, School of Public Health, Zhejiang University School of Medicine, Hangzhou 310058, China
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Yin R, Lu Q, Jiao JL, Lin K, Wang C, Yuan L, Ding Y, Dong N, Wang BJ, Niu YH, Fang YS, Liu W, Sun YF, Zou B, Zhang XE, Xiao P, Sun L, Du X, Zhu YY, Dong XY. [Characteristics and related factors of viral nucleic acid negative conversion in children infected with Omicron variant strain of SARS-CoV-2]. Zhonghua Er Ke Za Zhi 2022; 60:1307-1311. [PMID: 36444435 DOI: 10.3760/cma.j.cn112140-20220623-00582] [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 understand the characteristics and associated factors of viral nucleic acid conversion in children infected with Omicron variant strain of SARS-CoV-2 in Shanghai. Methods: The clinical symptoms, laboratory results and other data of 177 children infected with SARS-CoV-2 who were hospitalized in Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University (designated hospital for SARS-CoV-2 infection in Shanghai) from April 25 to June 8, 2022 were retrospectively analyzed. According to the chest imaging findings, the children were divided into mild and common type groups. According to their age, the unvaccinated children were divided into<3 years old group and 3-<18 years old group. According to the vaccination status, the children aged 3-<18 year were divided into non-vaccination group, 1-dose vaccination group and 2-dose vaccination group. Comparison between groups was performed by independent sample t-test and analysis of variance, and multivariate linear regression analysis was used for multivariate analysis. Results: Among the 177 children infected with Omicron variant of SARS-CoV-2, 96 were males and 81 were females, aged 3 (1, 6) years. The time of viral nucleic acid negative conversion was (10.3±3.1) days. The 177 children were 138 cases of mild type and 39 cases of common type. Among the children aged 3-<18 years old, 55 cases were not vaccinated, 5 cases received 1-dose and 36 cases received 2-dose vaccination. Among the 36 children who received 2 doses of vaccination, the time of viral nucleic acid negative conversion was shorter in those vaccinated within 6 months than those over 6 months ((7.1±1.9) vs. (10.8±3.0) d, t=-3.23, P=0.004). Univariate analysis showed that the time of nucleic acid negative conversion of SARS-CoV-2 was associated with age, underlying diseases, gastrointestinal symptoms, white blood cell count, proportion of neutrophils, proportion of lymphocytes, and the number of doses of SARS-CoV-2 vaccine (t=3.87, 2.55, 2.04, 4.24, 3.51, 2.92, F=16.27, all P<0.05). Multiple linear regression analysis showed that older age (β=-0.33, 95% CI -0.485--0.182, P<0.001) and more doses of vaccination (β=-0.79, 95% CI -1.463--0.120, P=0.021) were associated with shortened nucleic acid negative conversion time in children, while lower lymphocyte proportion (β=-0.02, 95% CI -0.044--0.002, P=0.031) and underlying diseases (β=1.52, 95% CI 0.363-2.672, P=0.010) were associated with prolonged nucleic acid negative conversion time in children. Conclusion: The children infected with Omicron variant of SARS-CoV-2 with reduced lymphocyte proportion and underlying diseases may have longer time of viral nucleic acid negative conversion,while children with older age and more doses of vaccination may have shorter time of viral nucleic acid negative conversion.
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Affiliation(s)
- R Yin
- Department of Respiratory, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - Q Lu
- Department of Respiratory, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - J L Jiao
- Institute of Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - K Lin
- Department of Endoscopy Center, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - C Wang
- Department of Respiratory, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - L Yuan
- Department of Respiratory, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - Y Ding
- Department of Respiratory, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - N Dong
- Department of Respiratory, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - B J Wang
- Department of Respiratory, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - Y H Niu
- Department of Respiratory, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - Y S Fang
- Department of Respiratory, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - W Liu
- Department of Cardiology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - Y F Sun
- Department of Neonatology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - B Zou
- Department of Hematology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - X E Zhang
- Department of Nephrology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - P Xiao
- Department of Digestive Infection, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - L Sun
- Department of Nephrology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - X Du
- Department of Hematology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - Y Y Zhu
- Department of Neonatology, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
| | - X Y Dong
- Department of Respiratory, Shanghai Children's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200062, China
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Shi S, Dong N, Ding Y, Wang C, Yuan L, Fang YS, Wang BJ, Niu YH, Wei ZZ, Pu T, Dong XY, Lu Q. [COVID-19 treated with oral Nirmatrelvir-Ritonavir in 3 children]. Zhonghua Er Ke Za Zhi 2022; 60:1168-1171. [PMID: 36319152 DOI: 10.3760/cma.j.cn112140-20220701-00608] [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 summarize the application experience and the therapeutic effect of Nirmatrelvir-Ritonavir (trade name: Paxlovid) for COVID-19 in children. Methods: A retrospective analysis was performed on the clinical data, including collecting the clinical manifestations and clinical outcomes, dynamically monitoring the blood routine, hepatic and renal function and SARS-CoV-2 nucleic acid results, and observing the related side effects during the treatment, etc, of 3 cases with COVID-19 treated with Paxlovid admitted to Shanghai Children's Hospital (designated referral hospital for SARS-CoV-2 infection in Shanghai) from May 1st to June 1st, 2022. Results: The 3 cases were 12, 14, 17 years of age, among which 2 cases were males, 1 case was female. All 3 cases were mild cases with underlying diseases and risk of developing into severe COVID-19, with symptoms of high fever, sore throat and dry cough. The treatment of Paxlovid at 3rd day of symptom onset contributed to the symptom-free after 1-2 days and negative results of SARS-CoV-2 nucleic acid after 2-4 days. All patients had no adverse manifestations of gastrointestinal tract and nervous system but a case had little skin rashes, which recovered after the withdrawal of Paxlovid. Three cases had normal hepatic and renal function during the Paxlovid treatment. At 3 months after discharge, no clinical manifestations of post-COVID syndrome were found in all 3 cases. Conclusion: Paxlovid was effective and relatively safe in the treatment of 3 children with COVID-19.
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Affiliation(s)
- S Shi
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - N Dong
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - Y Ding
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - C Wang
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - L Yuan
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - Y S Fang
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - B J Wang
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - Y H Niu
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - Z Z Wei
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - T Pu
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - X Y Dong
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
| | - Q Lu
- Department of Respiratory Medicine, Shanghai Children's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200062, China
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Wang C, Chen W, Wang BJ. [Regulatory effects and signaling mechanism of sodium ferulate on the proliferation and apoptosis of human skin hypertrophic scar fibroblasts]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:471-480. [PMID: 35599423 DOI: 10.3760/cma.j.cn501120-20201120-00484] [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: 06/15/2023]
Abstract
Objective: To investigate the regulatory effects and signaling mechanism of sodium ferulate on the proliferation and apoptosis of human skin hypertrophic scar fibroblasts (HSFbs). Methods: The experimental research methods were used. The 4th-6th passage of HSFbs from human skin were used for the following experiments. HSFbs were co-cultured with sodium ferulate at final mass concentrations of 1, 1×10-1, 1×10-2, 1×10-3, 1×10-4, 1×10-5, and 1×10-6 mg/mL for 48 hours, and methyl thiazolyl tetrazolium method was used to determine the cell absorbance values and linear regression was used to analyze the half lethal concentration (LC50) of sodium ferulate (n=6). HSFbs were co-cultured with sodium ferulate at final mass concentrations of 0.1, 0.2, 0.3, and 0.4 mg/mL for 24, 48, 72, and 96 hours, and methyl thiazolyl tetrazolium method was used to determine the cell absorbance values and the cell proliferation inhibition rate was calculated (n=3). According to the random number table, the cells were divided into 0.300 mg/mL sodium ferulate group, 0.030 mg/mL sodium ferulate group, 0.003 mg/mL sodium ferulate group treated with sodium ferulate at corresponding final mass concentrations, and negative control group without any treatment. After 72 hours of culture, the cell absorbance values were determined by methyl thiazolyl tetrazolium method (n=5), the microscopic morphology of cells was observed by transmission electron microscope (n=3), the cell apoptosis was detected by TdT-mediated dUTP-biotin nick end labeling (TUNEL) assay and the apoptosis index was calculated (n=4), the protein expressions of B lymphocystoma-2 (Bcl-2), Bcl-2-associated X protein (Bax), and cysteine aspartic acid specific protease-3 (caspase-3) were determined by immunohistochemistry (n=4), and the protein expressions of transformed growth factor β1 (TGF-β1), phosphorylated Smad2/3, phosphorylated Smad4, and phosphorylated Smad7 were detected by Western blotting (n=4). Data were statistically analyzed with one-way analysis of variance and Dunnett test. Results: The LC50 of sodium ferulate was 0.307 5 mg/mL. After being cultured for 24-96 hours, the cell proliferation inhibition rates of cells treated with sodium ferulate at four different mass concentrations tended to increase at first but decrease later, which reached the highest after 72 hours of culture, so 72 hours was chosen as the processing time for the subsequent experiments. After 72 hours of culture, the cell absorbance values in 0.003 mg/mL sodium ferulate group, 0.030 mg/mL sodium ferulate group, and 0.300 mg/mL sodium ferulate group were 0.57±0.06, 0.53±0.04, 0.45±0.05, respectively, which were significantly lower than 0.69±0.06 in negative control group (P<0.01). After 72 hours of culture, compared with those in negative control group, the cells in the three groups treated with sodium ferulate showed varying degrees of nuclear pyknosis, fracture, or lysis, and chromatin loss. In the cytoplasm, mitochondria were swollen, the rough endoplasmic reticulum was expanded, and local vacuolation gradually appeared. After 72 hours of culture, compared with that in negative control group, the apoptosis indexes of cells were increased significantly in 0.003 mg/mL sodium ferulate group, 0.030 mg/mL sodium ferulate group, and 0.300 mg/mL sodium ferulate group (P<0.05 or P<0.01). After 72 hours of culture, compared with those in negative control group, the protein expressions of Bcl-2 of cells in 0.300 mg/mL sodium ferulate group was significantly decreased (P<0.01), the protein expressions of Bax of cells in 0.030 mg/mL sodium ferulate group and 0.300 mg/mL sodium ferulate group were significantly increased (P<0.05), and the protein expression of caspase-3 of cells in 0.300 mg/mL sodium ferulate group was significantly increased (P<0.01). After 72 hours of culture, compared with those in negative control group, the protein expression levels of TGF-β1, phosphorylated Smad2/3, and phosphorylated Smad4 of cells in 0.030 mg/mL sodium ferulate group and 0.300 mg/mL sodium ferulate group were significantly decreased (P<0.05 or P<0.01), and the protein expression levels of phosphorylated Smad7 of cells in 0.003 mg/mL sodium ferulate group, 0.030 mg/mL sodium ferulate group, and 0.300 mg/mL sodium ferulate group were significantly increased (P<0.01). Conclusions: Sodium ferulate can inhibit the proliferation of HSFbs of human skin and promote the apoptosis of HSFbs of human skin by blocking the expression of key proteins on the TGF-β/Smad signaling pathway and synergistically activating the mitochon- drial apoptosis pathway.
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Affiliation(s)
- C Wang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
| | - W Chen
- Internet Connections College of Education, Southwest Jiaotong University, Chengdu 610031, China
| | - B J Wang
- School of Basic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China
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Lin L, Zhang CF, Wang P, Gao H, Guan X, Han JL, Jiang JC, Jiang P, Lee KJ, Li D, Men YP, Miao CC, Niu CH, Niu JR, Sun C, Wang BJ, Wang ZL, Xu H, Xu JL, Xu JW, Yang YH, Yang YP, Yu W, Zhang B, Zhang BB, Zhou DJ, Zhu WW, Castro-Tirado AJ, Dai ZG, Ge MY, Hu YD, Li CK, Li Y, Li Z, Liang EW, Jia SM, Querel R, Shao L, Wang FY, Wang XG, Wu XF, Xiong SL, Xu RX, Yang YS, Zhang GQ, Zhang SN, Zheng TC, Zou JH. No pulsed radio emission during a bursting phase of a Galactic magnetar. Nature 2020; 587:63-65. [PMID: 33149293 DOI: 10.1038/s41586-020-2839-y] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 08/31/2020] [Indexed: 11/10/2022]
Abstract
Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances1-3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources4-13, but no convincing evidence has been collected so far14. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft γ-ray bursts15. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft γ-ray/hard-X-ray flare18-21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-γ-ray repeater (SGR) bursts were detected in γ-ray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB-SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst.
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Affiliation(s)
- L Lin
- Department of Astronomy, Beijing Normal University, Beijing, People's Republic of China
| | - C F Zhang
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - P Wang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - H Gao
- Department of Astronomy, Beijing Normal University, Beijing, People's Republic of China
| | - X Guan
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J L Han
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J C Jiang
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - P Jiang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - K J Lee
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China. .,Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, People's Republic of China.
| | - D Li
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China. .,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Y P Men
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - C C Miao
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - C H Niu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J R Niu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - C Sun
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - B J Wang
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Z L Wang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - H Xu
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J L Xu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J W Xu
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Y H Yang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China
| | - Y P Yang
- South-Western Institute for Astronomy Research, Yunnan University, Kunming, People's Republic of China
| | - W Yu
- Shanghai Astronomical Observatory, Chinese Academy of Science, Shanghai, People's Republic of China
| | - B Zhang
- Department of Physics and Astronomy, University of Nevada, Las Vegas, NV, USA.
| | - B-B Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China.,Department of Physics and Astronomy, University of Nevada, Las Vegas, NV, USA.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, People's Republic of China
| | - D J Zhou
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - W W Zhu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - A J Castro-Tirado
- Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain.,Departamento de Ingeniería de Sistemas y Automática, Escuela de Ingenierías, Universidad de Málaga, Málaga, Spain
| | - Z G Dai
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, People's Republic of China
| | - M Y Ge
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Y D Hu
- Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain.,Facultad de Ciencias, Universidad de Granada, Granada, Spain
| | - C K Li
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Y Li
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.,Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, People's Republic of China
| | - Z Li
- Department of Astronomy, Beijing Normal University, Beijing, People's Republic of China
| | - E W Liang
- Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, People's Republic of China
| | - S M Jia
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - R Querel
- National Institute of Water and Atmospheric Research (NIWA), Lauder, New Zealand
| | - L Shao
- College of Physics, Hebei Normal University, Shijiazhuang, People's Republic of China
| | - F Y Wang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, People's Republic of China
| | - X G Wang
- Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, People's Republic of China
| | - X F Wu
- Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, People's Republic of China
| | - S L Xiong
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - R X Xu
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, People's Republic of China
| | - Y-S Yang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China
| | - G Q Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China
| | - S N Zhang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.,Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - T C Zheng
- Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, People's Republic of China
| | - J-H Zou
- College of Physics, Hebei Normal University, Shijiazhuang, People's Republic of China
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8
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Wu TZ, Liang X, Li JQ, Li T, Yang LL, Li J, Xin JJ, Jiang J, Shi DY, Ren KK, Hao SR, Jin LF, Ye P, Huang JR, Xu XW, Gao ZL, Duan ZP, Han T, Wang YM, Wang BJ, Gan JH, Fen TT, Pan C, Chen YP, Huang Y, Xie Q, Lin SM, Chen X, Xin SJ, Li LJ, Li J. [Establishment of clinical features and prognostic scoring model in early-stage hepatitis B-related acute-on-chronic liver failure]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:441-445. [PMID: 32403883 DOI: 10.3760/cma.j.cn501113-20200316-00116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical characteristics and establish a corresponding prognostic scoring model in patients with early-stage clinical features of hepatitis B-induced acute-on-chronic liver failure (HBV-ACLF). Methods: Clinical characteristics of 725 cases with hepatitis B-related acute-on-chronic hepatic dysfunction (HBV-ACHD) were retrospectively analyzed using Chinese group on the study of severe hepatitis B (COSSH). The independent risk factors associated with 90-day prognosis to establish a prognostic scoring model was analyzed by multivariate Cox regression, and was validated by 500 internal and 390 external HBV-ACHD patients. Results: Among 725 cases with HBV-ACHD, 76.8% were male, 96.8% had cirrhosis base,66.5% had complications of ascites, 4.1% had coagulation failure in respect to organ failure, and 9.2% had 90-day mortality rate. Multivariate Cox regression analysis showed that TBil, WBC and ALP were the best predictors of 90-day mortality rate in HBV-ACHD patients. The established scoring model was COSS-HACHADs = 0.75 × ln(WBC) + 0.57 × ln(TBil)-0.94 × ln(ALP) +10. The area under the receiver operating characteristic curve (AUROC) of subjects was significantly higher than MELD, MELD-Na, CTP and CLIF-C ADs(P < 0.05). An analysis of 500 and 390 cases of internal random selection group and external group had similar verified results. Conclusion: HBV-ACHD patients are a group of people with decompensated cirrhosis combined with small number of organ failure, and the 90-day mortality rate is 9.2%. COSSH-ACHDs have a higher predictive effect on HBV-ACHD patients' 90-day prognosis, and thus provide evidence-based medicine for early clinical diagnosis and treatment.
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Affiliation(s)
- T Z Wu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - X Liang
- Precision Medicine Center, Taizhou Central Hospital, Taizhou University Medical School, Taizhou 318000, China
| | - J Q Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - T Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - L L Yang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - J Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - J J Xin
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Precision Medicine Center, Taizhou Central Hospital, Taizhou University Medical School, Taizhou 318000, China
| | - J Jiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Precision Medicine Center, Taizhou Central Hospital, Taizhou University Medical School, Taizhou 318000, China
| | - D Y Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Precision Medicine Center, Taizhou Central Hospital, Taizhou University Medical School, Taizhou 318000, China
| | - K K Ren
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - S R Hao
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - L F Jin
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - P Ye
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - J R Huang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - X W Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Z L Gao
- Department of Liver and Infectious Disease, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510000, China
| | - Z P Duan
- Department of Liver and Infectious Diseases, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
| | - T Han
- Department of Liver and Infectious Diseases, Tianjin Third Central Hospital, Tianjin 300170, China
| | - Y M Wang
- Department of Liver and Infectious Disease, The First Hospital Affiliated To AMU, Chongqing 400038, China
| | - B J Wang
- Department of Liver and Infectious Disease, Union Hospital affiliated to Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430022, China
| | - J H Gan
- Department of Liver and Infectious Disease, The First Affilated Hospital of Soochow University, Suzhou 215006, China
| | - T T Fen
- Department of Liver and Infectious Disease, The First Affilated Hospital of Soochow University, Suzhou 215006, China
| | - C Pan
- Department of Liver and Infectious Diseases, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350005, China
| | - Y P Chen
- Department of Liver and Infectious Diseases, The First Affilated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Y Huang
- Department of Liver and Infectious Diseases, Xiangya Hospital Central South University, Changsha 410013, China
| | - Q Xie
- Department of Liver and Infectious Diseases, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - S M Lin
- Department of Liver and Infectious Diseases, First Affilated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - X Chen
- Institute of Pharmaceutical Biotechnology, Zhejiang University School of Medicine, Hangzhou 310058, China; Precision Medicine Center, Taizhou Central Hospital, Taizhou University Medical School, Taizhou 318000, China
| | - S J Xin
- Department of liver and Infectious Diseases, The Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - L J Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - J Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, Collaborative National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China; Precision Medicine Center, Taizhou Central Hospital, Taizhou University Medical School, Taizhou 318000, China
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9
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Angelopoulos V, Cruce P, Drozdov A, Grimes EW, Hatzigeorgiu N, King DA, Larson D, Lewis JW, McTiernan JM, Roberts DA, Russell CL, Hori T, Kasahara Y, Kumamoto A, Matsuoka A, Miyashita Y, Miyoshi Y, Shinohara I, Teramoto M, Faden JB, Halford AJ, McCarthy M, Millan RM, Sample JG, Smith DM, Woodger LA, Masson A, Narock AA, Asamura K, Chang TF, Chiang CY, Kazama Y, Keika K, Matsuda S, Segawa T, Seki K, Shoji M, Tam SWY, Umemura N, Wang BJ, Wang SY, Redmon R, Rodriguez JV, Singer HJ, Vandegriff J, Abe S, Nose M, Shinbori A, Tanaka YM, UeNo S, Andersson L, Dunn P, Fowler C, Halekas JS, Hara T, Harada Y, Lee CO, Lillis R, Mitchell DL, Argall MR, Bromund K, Burch JL, Cohen IJ, Galloy M, Giles B, Jaynes AN, Le Contel O, Oka M, Phan TD, Walsh BM, Westlake J, Wilder FD, Bale SD, Livi R, Pulupa M, Whittlesey P, DeWolfe A, Harter B, Lucas E, Auster U, Bonnell JW, Cully CM, Donovan E, Ergun RE, Frey HU, Jackel B, Keiling A, Korth H, McFadden JP, Nishimura Y, Plaschke F, Robert P, Turner DL, Weygand JM, Candey RM, Johnson RC, Kovalick T, Liu MH, McGuire RE, Breneman A, Kersten K, Schroeder P. The Space Physics Environment Data Analysis System (SPEDAS). Space Sci Rev 2019; 215:9. [PMID: 30880847 PMCID: PMC6380193 DOI: 10.1007/s11214-018-0576-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 12/29/2018] [Indexed: 05/31/2023]
Abstract
With the advent of the Heliophysics/Geospace System Observatory (H/GSO), a complement of multi-spacecraft missions and ground-based observatories to study the space environment, data retrieval, analysis, and visualization of space physics data can be daunting. The Space Physics Environment Data Analysis System (SPEDAS), a grass-roots software development platform (www.spedas.org), is now officially supported by NASA Heliophysics as part of its data environment infrastructure. It serves more than a dozen space missions and ground observatories and can integrate the full complement of past and upcoming space physics missions with minimal resources, following clear, simple, and well-proven guidelines. Free, modular and configurable to the needs of individual missions, it works in both command-line (ideal for experienced users) and Graphical User Interface (GUI) mode (reducing the learning curve for first-time users). Both options have "crib-sheets," user-command sequences in ASCII format that can facilitate record-and-repeat actions, especially for complex operations and plotting. Crib-sheets enhance scientific interactions, as users can move rapidly and accurately from exchanges of technical information on data processing to efficient discussions regarding data interpretation and science. SPEDAS can readily query and ingest all International Solar Terrestrial Physics (ISTP)-compatible products from the Space Physics Data Facility (SPDF), enabling access to a vast collection of historic and current mission data. The planned incorporation of Heliophysics Application Programmer's Interface (HAPI) standards will facilitate data ingestion from distributed datasets that adhere to these standards. Although SPEDAS is currently Interactive Data Language (IDL)-based (and interfaces to Java-based tools such as Autoplot), efforts are under-way to expand it further to work with python (first as an interface tool and potentially even receiving an under-the-hood replacement). We review the SPEDAS development history, goals, and current implementation. We explain its "modes of use" with examples geared for users and outline its technical implementation and requirements with software developers in mind. We also describe SPEDAS personnel and software management, interfaces with other organizations, resources and support structure available to the community, and future development plans. ELECTRONIC SUPPLEMENTARY MATERIAL The online version of this article (10.1007/s11214-018-0576-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- V. Angelopoulos
- Department of Earth, Planetary and Space Sciences, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, USA
| | - P. Cruce
- Department of Earth, Planetary and Space Sciences, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, USA
| | - A. Drozdov
- Department of Earth, Planetary and Space Sciences, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, USA
| | - E. W. Grimes
- Department of Earth, Planetary and Space Sciences, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, USA
| | - N. Hatzigeorgiu
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - D. A. King
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - D. Larson
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - J. W. Lewis
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - J. M. McTiernan
- Space Sciences Laboratory, University of California, Berkeley, USA
| | | | - C. L. Russell
- Department of Earth, Planetary and Space Sciences, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, USA
| | - T. Hori
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
| | | | - A. Kumamoto
- Tohoku University, 6-3, Aoba, Aramaki, Aoba Sendai, 980-8578 Japan
| | - A. Matsuoka
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
| | - Y. Miyashita
- Korea Astronomy and Space Science Institute, Daejeon, South Korea
| | - Y. Miyoshi
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
| | - I. Shinohara
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
| | - M. Teramoto
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
| | | | - A. J. Halford
- Space Sciences Department, The Aerospace Corporation, Chantilly, VA USA
| | - M. McCarthy
- Department of Earth and Space Sciences, University of Washington, Seattle, WA USA
| | - R. M. Millan
- Department of Physics and Astronomy, Dartmouth College, Hanover, NH USA
| | - J. G. Sample
- Department of Physics, Montana State University, Bozeman, MT USA
| | - D. M. Smith
- Santa Cruz Institute of Particle Physics and Department of Physics, University of California, Santa Cruz, CA 95064 USA
| | - L. A. Woodger
- Department of Physics and Astronomy, Dartmouth College, Hanover, NH USA
| | - A. Masson
- European Space Agency, ESAC, SCI-OPD, Madrid, Spain
| | - A. A. Narock
- ADNET Systems Inc., NASA Goddard Space Flight Center, Greenbelt, MD USA
| | - K. Asamura
- Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Sagamihara, Japan
| | - T. F. Chang
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
| | - C.-Y. Chiang
- Institute of Space and Plasma Sciences, National Cheng Kung University, Tainan, Taiwan
| | - Y. Kazama
- Academia Sinica Institute of Astronomy and Astrophysics, Taipei, Taiwan
| | - K. Keika
- Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Tokyo, Japan
| | - S. Matsuda
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
| | - T. Segawa
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
| | - K. Seki
- Department of Earth and Planetary Science, Graduate School of Science, University of Tokyo, Tokyo, Japan
| | - M. Shoji
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
| | - S. W. Y. Tam
- Institute of Space and Plasma Sciences, National Cheng Kung University, Tainan, Taiwan
| | - N. Umemura
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
| | - B.-J. Wang
- Academia Sinica Institute of Astronomy and Astrophysics, Taipei, Taiwan
- Graduate Institute of Space Science, National Central University, Taoyuan, Taiwan
| | - S.-Y. Wang
- Academia Sinica Institute of Astronomy and Astrophysics, Taipei, Taiwan
| | - R. Redmon
- National Centers for Environmental Information, National Oceanic and Atmospheric Administration, Boulder, CO USA
| | - J. V. Rodriguez
- National Centers for Environmental Information, National Oceanic and Atmospheric Administration, Boulder, CO USA
- Cooperative Institute for Research in Environmental Sciences (CIRES) at University of Colorado at Boulder, Boulder, CO USA
| | - H. J. Singer
- Space Weather Prediction Center, National Oceanic and Atmospheric Administration, Boulder, CO USA
| | - J. Vandegriff
- The Johns Hopkins University Applied Physics Laboratory, Laurel, MD USA
| | - S. Abe
- International Center for Space Weather Science and Education, Kyushu University, Fukuoka, Japan
| | - M. Nose
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
- World Data Center for Geomagnetism, Kyoto Data Analysis Center for Geomagnetism and Space Magnetism, Kyoto University, Kyoto, Japan
| | - A. Shinbori
- Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, Japan
| | - Y.-M. Tanaka
- National Institute of Polar Research, Tokyo, Japan
| | - S. UeNo
- Hida Observatory, Kyoto University, Kyoto, Japan
| | - L. Andersson
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO USA
| | - P. Dunn
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - C. Fowler
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO USA
| | - J. S. Halekas
- Department of Physics and Astronomy, University of Iowa, Iowa City, IA USA
| | - T. Hara
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - Y. Harada
- Department of Geophysics, Kyoto University, Kyoto, Japan
| | - C. O. Lee
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - R. Lillis
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - D. L. Mitchell
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - M. R. Argall
- Physics Department and Space Science Center, University of New Hampshire, Durham, NH USA
| | - K. Bromund
- NASA Goddard Space Flight Center, Greenbelt, MD USA
| | - J. L. Burch
- Southwest Research Institute, San Antonio, TX USA
| | - I. J. Cohen
- The Johns Hopkins University Applied Physics Laboratory, Laurel, MD USA
| | - M. Galloy
- National Center for Atmospheric Research, Boulder, CO USA
| | - B. Giles
- NASA Goddard Space Flight Center, Greenbelt, MD USA
| | - A. N. Jaynes
- Department of Physics and Astronomy, University of Iowa, Iowa City, IA USA
| | - O. Le Contel
- Laboratoire de Physique des Plasmas, CNRS/Ecole Polytechnique/Sorbonne Université/Univ. Paris Sud/Observatoire de Paris, Paris, France
| | - M. Oka
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - T. D. Phan
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - B. M. Walsh
- Center for Space Physics, Department of Mechanical Engineering, Boston University, Boston, MA USA
| | - J. Westlake
- The Johns Hopkins University Applied Physics Laboratory, Laurel, MD USA
| | - F. D. Wilder
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO USA
| | - S. D. Bale
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - R. Livi
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - M. Pulupa
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - P. Whittlesey
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - A. DeWolfe
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO USA
| | - B. Harter
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO USA
| | - E. Lucas
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO USA
| | - U. Auster
- Institute for Geophysics and Extraterrestrial Physics, Technical University of Braunschweig, Braunschweig, Germany
| | - J. W. Bonnell
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - C. M. Cully
- University of Calgary, Calgary, Ontario Canada
| | - E. Donovan
- University of Calgary, Calgary, Ontario Canada
| | - R. E. Ergun
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, CO USA
| | - H. U. Frey
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - B. Jackel
- University of Calgary, Calgary, Ontario Canada
| | - A. Keiling
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - H. Korth
- The Johns Hopkins University Applied Physics Laboratory, Laurel, MD USA
| | - J. P. McFadden
- Space Sciences Laboratory, University of California, Berkeley, USA
| | - Y. Nishimura
- Center for Space Physics and Department of Electrical and Computer Engineering, Boston University, Boston, MA USA
| | - F. Plaschke
- Space Research Institute, Austrian Academy of Sciences, Institute of Physics, University of Graz, Graz, Austria
| | - P. Robert
- Laboratoire de Physique des Plasmas, CNRS/Ecole Polytechnique/Sorbonne Université/Univ. Paris Sud/Observatoire de Paris, Paris, France
| | | | - J. M. Weygand
- Department of Earth, Planetary and Space Sciences, and Institute of Geophysics and Planetary Physics, University of California, Los Angeles, USA
| | - R. M. Candey
- NASA Goddard Space Flight Center, Greenbelt, MD USA
| | - R. C. Johnson
- ADNET Systems Inc., NASA Goddard Space Flight Center, Greenbelt, MD USA
| | - T. Kovalick
- ADNET Systems Inc., NASA Goddard Space Flight Center, Greenbelt, MD USA
| | - M. H. Liu
- ADNET Systems Inc., NASA Goddard Space Flight Center, Greenbelt, MD USA
| | | | - A. Breneman
- University of Minnesota, Minneapolis, MN USA
| | - K. Kersten
- University of Minnesota, Minneapolis, MN USA
| | - P. Schroeder
- Space Sciences Laboratory, University of California, Berkeley, USA
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10
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Wang BJ, Wang WS, Wang MJ. [A case of IgG(4)-related disease misdiagnosed as Castleman's disease]. Zhonghua Nei Ke Za Zhi 2018; 57:844-845. [PMID: 30392242 DOI: 10.3760/cma.j.issn.0578-1426.2018.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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11
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Liu BY, Yang L, Wang BJ, Wang ZH, Cheng LL, Xie H, Qiu X, Ma ZJ, Zhao DW. [Prevention for glucocorticoid-induced osteonecrosis of femoral head: a long-term clinical follow-up trail]. Zhonghua Yi Xue Za Zhi 2018; 97:3213-3218. [PMID: 29141357 DOI: 10.3760/cma.j.issn.0376-2491.2017.41.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluated the outcome of prevention and treatment for glucocorticoid-induced osteonecrosis of femoral head with anticoagulant and vasodilator drugs. Methods: A prospective, randomized, double-blind study was performed. From August 2003 to August 2006, 58 patients with large amounts of hormone therapy in the Zhongshan Hospital Affiliated Dalian University were enrolled and randomly assigned to the control group (placebo) or preventive group (anticoagulant and vasodilator drugs). And we prospectively analyzed the clinical outcomes of 24 patients with glucocorticoid-induced osteonecrosis of femoral head early stage (treatment group)treated by anticoagulant and vasodilator drugsat the same time. Disease incidence rate and progression were evaluated by radiography and magnetic resonance imaging (MRI), Follow-up of patients with femoral head survival curve was drawn. The Harris Hip Score and the Short Form 36 health survey were used to rate hip function and quality of life, respectively. Results: Thus, a total of 80 patients were assessed in this study, 24 cases in control group[follow up from 7.5 to 13.0(10.7±1.6)years], 22 cases in preventive group and 24 cases in treatment group. There was significant difference in theincidence rate of Osteonecrosis of femoral head, survive rate of femoral head and HHS score between the control groupand preventive group(41.7% vs 13.6%, 66.7% vs 70.8% , P<0.01). Conclusion: Anticoagulant and vasodilator drugs could effect on preventing theglucocorticoid-induced osteonecrosis of femoral head, reducing disease progression, or improving life quality.
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Affiliation(s)
- B Y Liu
- Department of Orthopedic, Zhongshan Hospital of Dalian University, Dalian 116001, China
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12
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Wang BJ, Guo C, Li CJ, Mu DL. [Prevalance of peri-anesthesia allergy and its related risk factor: a retrospective survey from 2012-2017]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:193-199. [PMID: 29483746] [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: 06/08/2023]
Abstract
OBJECTIVE To investigate the incidence of peri-anesthesia allergy in a tertiary teaching hospital. METHODS This was a retrospective cohort study. Patients who received anesthesia in operation rooms at Peking University First Hospital from January 2012 to April 2017 were enrolled. Researchers reviewed all the patients' electronic records and screened suspect allergy cases. Allergy was diagnosed according to the definition in Consensus on Management of Perioperative Allergy (China) and Scandinavian Clinical Practice Guidelines on the Diagnosis, Management and Follow-up of Anaphylaxis during Anesthesia. After obtaining the electronic records, two researchers began to screen and supplement missing data according medical records independently, then they checked out each other's data. The final data were reviewed by another two researchers. We collected the patients' basic characteristics, surgery type, anesthesia type, peri-anesthesia use of drugs, prognosis and other data. Univariate logistic regression was employed to screen potential factors of allergy. Factors with statistical significance (P<0.05) in univariate Logistic regression were entered into multivariate Logistic regression to identify independent risk factors of allergy. RESULTS In the study, 106 074 patients entered final statistic analysis. The incidence of peri-anesthesia allergy was about 1.5/1 000 (156/106 074). The incidence of Grades I, II and III allergy was 64.1% (100/156), 30.1% (47/156), and 5.8% (9/156) respectively. Multivariate logistic regression showed 5 independent risk factors of allergy including history of allergy (OR=6.836, 95%CI: 4.461-10.474, P<0.001), intraoperative use of sufentanil (OR=1.993, 95%CI: 1.228-3.232, P=0.005), intraoperative use of cis-atracuronium (OR=2.495, 95%CI: 1.599-3.893, P<0.001), intraoperative infusion of antibiotics (OR=2.005, 95%CI: 1.375-2.924, P<0.001) and frozen fresh plasma (OR=3.055, 95%CI: 1.842-5.068, P<0.001). CONCLUSION The incidence of peri-anesthesia allergy is high and further attempt is needed to establish standard operation process of diagnosis and treatment of allergy.
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Affiliation(s)
- B J Wang
- Department of Anesthesiology, Peking University First Hospital, Beijing 100034, China
| | - C Guo
- Department of Anesthesiology, Peking University First Hospital, Beijing 100034, China
| | - C J Li
- Department of Anesthesiology, Peking University First Hospital, Beijing 100034, China
| | - D L Mu
- Department of Anesthesiology, Peking University First Hospital, Beijing 100034, China
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13
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Pang J, Wang BJ, Li YC, Zhang H, Xiang WP, Hao XW, Xue H. 18 Intermittent hypoxia improves atherosclerosis associated with upregulation of hif-1α and nf-κb in aortic arch and serum of rabbits. J Investig Med 2017. [DOI: 10.1136/jim-2017-mebabstracts.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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14
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He LB, Wang YL, Xie X, Han M, Song FQ, Wang BJ, Cheng WL, Xu HX, Sun LT. Correction: Systematic investigation of the SERS efficiency and SERS hotspots in gas-phase deposited Ag nanoparticle assemblies. Phys Chem Chem Phys 2017; 19:17469. [PMID: 28653071 DOI: 10.1039/c7cp90136d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Correction for 'Systematic investigation of the SERS efficiency and SERS hotspots in gas-phase deposited Ag nanoparticle assemblies' by L. B. He et al., Phys. Chem. Chem. Phys., 2017, 19, 5091-5101.
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Affiliation(s)
- L B He
- SEU-FEI Nano-Pico Centre, Key Lab of MEMS of Ministry of Education, Southeast University, Nanjing 210096, P. R. China.
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15
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Liu Y, Zhao D, Wang WM, Wang BJ, Zhang Y, Li ZG. Hemodynamic changes in osteonecrosis treatment of the femoral head with iliac bone flaps pedicled with the lateral femoral circumflex artery ascending branch: A 10-year report. Technol Health Care 2017; 24 Suppl 2:S493-8. [PMID: 27163309 DOI: 10.3233/thc-161173] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Vascularized bone grafting was used in the treatment of osteonecrosis femoral head, which may directly influence the pathologic event of femoral head. OBJECTIVE This paper evaluates hemodynamic changes in osteonecrosis treatment of the femoral head (ONFH) with iliac bone flaps from the lateral femoral circumflex artery ascending branches via digital subtraction angiography. METHODS A total of 48 patients, (31 males and 17 females; 38 at stage II and 10 at stage III), were treated with iliac bone flaps pedicled with the ascending branch of the lateral femoral circumflex artery. DSA was performed on all 48 patients preoperatively and 6 months postoperatively, and 10 years postoperatively on 1 patient. RESULTS Six months after surgery, femoral head blood supplies were distinctly visualized in the selective DSA in 44 cases. 4 patients showed poor or failed vessel pedicle filling in the transplanted bone flaps. Total hip arthroplasty was performed on these 4 patients. DSA was conducted 10 years post-operation in 1 case; the subject showed normal blood supply of the femoral head. CONCLUSIONS The anatomical position of the ascending branch of the lateral femoral circumflex artery was constant. Digital subtraction angiography successfully examined hemodynamic changes in osteonecrosis treatment of the femoral head with vascularized bone flaps.
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Affiliation(s)
- YuPeng Liu
- Department of Biomedical Engineering, Dalian University of Technology, Dalian, Liaoning, China.,Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - DeWei Zhao
- Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - W M Wang
- Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - B J Wang
- Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - Y Zhang
- Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
| | - Z G Li
- Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning, China
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16
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Guo AH, Hao FL, Liu LF, Wang BJ, Jiang XF. An assessment of the correlation between early postinfarction pyramidal tract Wallerian degeneration and nerve function recovery using diffusion tensor imaging. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019035. [PMID: 28128402 DOI: 10.4238/gmr16019035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study aimed to evaluate the clinical significance of diffusion tensor imaging (DTI) in the early diagnosis of pyramidal tract Wallerian degeneration (WD) and assessment of neurological recovery following cerebral infarction. This study included 23 patients with acute cerebral infarction and 10 healthy adult controls. All participants underwent both magnetic resonance imaging (MRI) and DTI scans. DTI images were analyzed using the Functional MRI of the Brain Software Library to determine the regions of interest (ROI) and obtain the mean diffusivity (MD) and fractional anisotropy (FA) value for each ROI. The correlation between FA or MD and postinfarction functional recovery of the nervous system was further analyzed to assess the feasibility of using a DTI scan in the evaluation of functional recovery of the nervous system in patients with cerebral infarction. DTI may be useful in detecting signals of early postinfarction pyramidal tract WD and is useful for the evaluation of postinfarction neurological recovery. Cerebral lesions were detected using MRI in all patients. It was found that in some patients, the FA value of the ipsilateral pyramidal tract on DTI was decreased as early as day 3 after the onset of infarction and in all patients by day 7. Subsequent correlation studies showed that the FA value of the ipsilateral pyramidal tract on day 13 was negatively correlated with the National Institutes of Health Stroke Scale score, but positively correlated with the Barthel Index, motricity index, and modified Rankin Scale scores.
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Affiliation(s)
- A H Guo
- Department of Neurology, Xianyang Hospital of Yan'an University, Xianyang, China
| | - F L Hao
- Department of Neurology, Xianyang Hospital of Yan'an University, Xianyang, China
| | - L F Liu
- Department of Medical Imaging, Xianyang Hospital of Yan'an University, Xianyang, China
| | - B J Wang
- Department of Neurology, Xianyang Hospital of Yan'an University, Xianyang, China
| | - X F Jiang
- Department of Medical Imaging, Xianyang Hospital of Yan'an University, Xianyang, China
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17
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Li CQ, Xu DK, Wang BJ, Sheng LY, Qiao YX, Han EH. Natural ageing responses of duplex structured Mg-Li based alloys. Sci Rep 2017; 7:40078. [PMID: 28053318 PMCID: PMC5215315 DOI: 10.1038/srep40078] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 11/30/2016] [Indexed: 11/09/2022] Open
Abstract
Natural ageing responses of duplex structured Mg-6%Li and Mg-6%Li-6%Zn-1.2%Y alloys have been investigated. Microstructural analyses revealed that the precipitation and coarsening process of α-Mg particles could occur in β-Li phases of both two alloys during ageing process. Since a certain amount of Mg atoms in β-Li phases were consumed for the precipitation of abundant tiny MgLiZn particles, the size of α-Mg precipitates in Mg-6%Li-6%Zn-1.2%Y alloy was relatively smaller than that in Mg-6%Li alloy. Micro hardness measurements demonstrated that with the ageing time increasing, the α-Mg phases in Mg-6%Li alloy could have a constant hardness value of 41 HV, but the contained β-Li phases exhibited a slight age-softening response. Compared with the Mg-6%Li alloy, the age-softening response of β-Li phases in Mg-6%Li-6%Zn-1.2%Y alloy was much more profound. Meanwhile, a normal age-hardening response of α-Mg phases was maintained. Tensile results indicated that obvious ageing-softening phenomenon in terms of macro tensile strength occurred in both two alloys. Failure analysis demonstrated that for the Mg-6%Li alloy, cracks were preferentially initiated at α-Mg/β-Li interfaces. For the Mg-6%Li-6%Zn-1.2%Y alloy, cracks occurred at both α-Mg/β-Li interfaces and slip bands in α-Mg and β-Li phases.
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Affiliation(s)
- C Q Li
- CAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Acadamy of Sciences, 62 Wencui Road, Shenyang 110016, China.,Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China
| | - D K Xu
- CAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Acadamy of Sciences, 62 Wencui Road, Shenyang 110016, China
| | - B J Wang
- CAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Acadamy of Sciences, 62 Wencui Road, Shenyang 110016, China
| | - L Y Sheng
- Peking University, Shenzhen Institute, Shenzhen Key Lab Human Tissue Regenerate &Repair, Shenzhen 518057, China
| | - Y X Qiao
- Jiangsu University of Science &Technology, Zhenjiang 212003, China
| | - E H Han
- CAS Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Acadamy of Sciences, 62 Wencui Road, Shenyang 110016, China
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18
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Guo BH, Gong SS, Zhang JY, Chai LH, Zhang Y, Wang BJ, Shao J, Xiao XH. Cloning and expression analysis of glucose transporter 4 mRNA in the cold hardiness frog, Rana dybowskii. Cryo Letters 2017; 38:339-346. [PMID: 29734436] [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: 06/08/2023]
Abstract
BACKGROUND The Rana dybowskii distribute in northeast region of China which have seasonally cold climates. During winter they survival freezing by biosynthesizing carbohydrate cryoprotectants such as high concentrations glucose into blood and all tissues. The essential role of glucose transporter 4 is a high-affinity glucose transporter, which can increase glucose uptake in cells when it stimulated by insulin. OBJECTIVE In this study, we analysis the full-length GLUT4 mRNA detect the gene levels of GLUT4 in R. dybowskii main tissues by qPCR during low temperature. RESULTS We found in heart, fat body, skeletal muscle and skin four tissues all express GLUT4, and the levels of GLUT4 decreased on initial cold exposure stage, 8~12 hours, followed 24 hours it recovered. CONCLUSION This study we firstly indentified and characterized GLUT4 in amphibious, and provide a novel insight into the role of GLUT4 in cryoprotectant synthesis and cell protection in cold hardiness amphibians.
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Affiliation(s)
- B H Guo
- Institute of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - S S Gong
- Institute of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - J Y Zhang
- Institute of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - L H Chai
- Institute of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - Y Zhang
- Institute of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - B J Wang
- Institute of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - J Shao
- Institute of Wildlife Resources, Northeast Forestry University, Harbin, China
| | - X H Xiao
- Institute of Wildlife Resources, Northeast Forestry University, Harbin, China.
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19
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Zhang WN, Ma L, Wang BJ, Chen L, Khaing MM, Lu YH, Liang GM, Guo YY. Reproductive Cost Associated With Juvenile Hormone in Bt-Resistant Strains of Helicoverpa armigera (Lepidoptera: Noctuidae). J Econ Entomol 2016; 109:2534-2542. [PMID: 27986942 DOI: 10.1093/jee/tow233] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 09/21/2016] [Indexed: 06/06/2023]
Abstract
Transgenic Bacillus thuringiensis (Bt) crops are increasingly significant in pest control, but resistance development of target pests is a major issue in the sustainable deployment of Bt crops. The fitness cost of resistance in target pests is regarded as one of the main factors delaying resistance when adopting the refuge strategy. In this study, we compared the life-history traits of three independent sets of Helicoverpa armigera (Hübner, 1809) adults, of each there were a susceptible population and a Cry1Ac-resistant population derived by selection from it. Confirming to the previous studies, resistant individuals exhibited fewer progeny, less fecundity, lower egg hatching rate, and longer adult longevity. And poor fecundity in resistant strains was associated with the decline of the mature follicular amount, the ovarian weight ratio, and the length of the longest ovarian tubule. Interestingly, the juvenile hormone (JH) level appeared higher in resistant strains relative to susceptible strains. Application of methoprene (JH analogue) in vivo was effective in reducing fecundity and hatchability with the up-regulation of detected JH titer. These results suggested that resistance against Bt toxin reduced the reproductive capacity of H. armigera, and JH level is affected in the tradeoff between reproductive capacity and Bt resistance.
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Affiliation(s)
- W N Zhang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China (; ; ; ; ; ; )
| | - L Ma
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - B J Wang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China (; ; ; ; ; ; )
| | - L Chen
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China (; ; ; ; ; ; )
| | - M M Khaing
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China (; ; ; ; ; ; )
| | - Y H Lu
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China (; ; ; ; ; ; )
| | - G M Liang
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China (; ; ; ; ; ; )
| | - Y Y Guo
- State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100193, China (; ; ; ; ; ; )
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20
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Zhai W, Wang BJ, Liu HM, Hu L, Wei B. Three orthogonal ultrasounds fabricate uniform ternary Al-Sn-Cu immiscible alloy. Sci Rep 2016; 6:36718. [PMID: 27841283 PMCID: PMC5107928 DOI: 10.1038/srep36718] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 10/19/2016] [Indexed: 11/09/2022] Open
Abstract
The production of Al based monotectic alloys with uniform microstructure is usually difficult due to the large density difference between the two immiscible liquid phases, which limits the application of such alloys. Here, we apply three orthogonal ultrasounds during the liquid phase separation process of ternary Al71.9Sn20.4Cu7.7 immiscible alloy. A uniform microstructure consisting of fine secondary (Sn) phase dispersed on Al-rich matrix is fabricated in the whole alloy sample with a large size of 30 × 30 × 100 mm. The numerical calculation results indicate that the coupled effect of three ultrasounds promotes the sound pressure level and consequently enlarges the cavitation zone within the alloy melt. The strong shockwaves produced by cavitation prevent the (Sn) droplets from coalescence, and keep them suspended in the parent Al-rich liquid phase. This accounts for the formation of homogeneous composite structures. Thus the introduction of three orthogonal ultrasounds is an effective way to suppress the macrosegregation caused by liquid phase separation and produce bulk immiscible alloys with uniform structures.
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Affiliation(s)
- W Zhai
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - B J Wang
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - H M Liu
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - L Hu
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710072, China
| | - B Wei
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an, 710072, China
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21
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Wang BJ, Zhang B, Yan SS, Li ZC, Jiang T, Hua CJ, Lu L, Liu XZ, Zhang DH, Zhang RS, Wang X. Hormonal and reproductive factors and risk of esophageal cancer in women: a meta-analysis. Dis Esophagus 2016; 29:448-54. [PMID: 25809699 DOI: 10.1111/dote.12349] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Currently published studies on the relationship between hormonal and reproductive factors and esophageal cancer (EC) risk in women have yielded contradictory findings. For a better understanding of this relationship, we first performed this meta-analysis by pooling all available publications. Sixteen independent studies were retrieved after a comprehensive search in PubMed and Embase databases. The pooled relative risks (RRs) with 95% confidence intervals (95% CIs) were calculated. The pooled RRs implicated that hormone replacement therapy was negatively associated with the risk of EC (RR = 0.72, 95% CI 0.60-0.86, P < 0.001) and esophageal squamous cell carcinoma (RR = 0.68, 95% CI 0.48-0.97, P = 0.031). Menopausal women were at an increased risk of EC (RR = 1.47, 95% CI 1.07-2.03, P = 0.018), particularly esophageal squamous cell carcinoma (RR = 1.66, 95% CI 1.12-2.48, P = 0.012). Additionally, decreased risk of EC (RR = 0.79, 95% CI 0.68-0.92, P = 0.003) and esophageal adenocarcinoma (RR = 0.66, 95% CI 0.53-0.82, P < 0.001) was demonstrated among women with breast-feeding history. Moreover, such associations were more significant among Caucasians, but not Asians. Our study suggests that menopause is an independent risk factor for EC, while hormone replacement therapy and breast-feeding history play a protective role against EC, particularly among Caucasians. All results are consistent with the hypothesis that effects of estrogen may lower the risk of EC in women.
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Affiliation(s)
- B J Wang
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
| | - B Zhang
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
| | - S S Yan
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
| | - Z C Li
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
| | - T Jiang
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
| | - C J Hua
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
| | - L Lu
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
| | - X Z Liu
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
| | - D H Zhang
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
| | - R S Zhang
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
| | - X Wang
- Department of Surgical Oncology, The Eighty-first Hospital of People's Liberation Army, Nanjing, 210002, China
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22
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Wang SD, Xu DK, Wang BJ, Han EH, Dong C. Effect of solution treatment on the fatigue behavior of an as-forged Mg-Zn-Y-Zr alloy. Sci Rep 2016; 6:23955. [PMID: 27032532 PMCID: PMC4817045 DOI: 10.1038/srep23955] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 03/17/2016] [Indexed: 11/15/2022] Open
Abstract
Through investigating and comparing the fatigue behavior of an as-forged Mg-6.7Zn-1.3Y-0.6Zr (wt.%) alloy before and after solid solution treatment (T4) in laboratory air, the effect of T4 treatment on fatigue crack initiation was disclosed. S-N curves illustrated that the fatigue strength of as-forged samples was 110 MPa, whereas the fatigue strength of T4 samples was only 80 MPa. Observations to fracture surfaces demonstrated that for as-forged samples, fatigue crack initiation sites were covered with a layer of oxide film. However, due to the coarse grain structure and the dissolution of MgZn2 precipitates, the activation and accumulation of {10–12} twins in T4 samples were much easier, resulting in the preferential fatigue crack initiation at cracked twin boundaries (TBs). Surface characterization demonstrated that TB cracking was mainly ascribed to the incompatible plastic deformation in the twinned area and nearby α-Mg matrix.
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Affiliation(s)
- S D Wang
- Environmental Corrosion Center, Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, Shenyang 110016, China.,Laboratory of Materials Modification by Laser, Electron and Ion Beams, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
| | - D K Xu
- Environmental Corrosion Center, Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, Shenyang 110016, China
| | - B J Wang
- Environmental Corrosion Center, Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, Shenyang 110016, China
| | - E H Han
- Environmental Corrosion Center, Institute of Metal Research, Chinese Academy of Sciences, 62 Wencui Road, Shenyang 110016, China
| | - C Dong
- Laboratory of Materials Modification by Laser, Electron and Ion Beams, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China
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Guo QY, Cao WL, Wang BJ, Wang ZB, Wang S, Bayin C. Development and application of Real-time PCR assay for detection of Theilera annulata infection in cattle in Xinjiang Uygur Autonomous Region, China. Trop Biomed 2016; 33:27-34. [PMID: 33579138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Theileria annulata (T. annulata), the causative agent of tropical theileriosis, is a protozoan parasite that also causes lymphoproliferative diseases in cattle. Development of reliable and fast methods are necessary in the epidemiological investigation of T. annulata in ticks and animals. Real-time PCR possesses merits of rapidity, accuracy, reliability, automation and ease of standardization, which is widely used for the detection of blood borne parasites. In this study, species-specific primers and TaqMan probe were designed on the basis of the 18s rRNA gene sequence of T. annulata, and the real-time PCR assay was developed by optimizing the reaction parameter. The performance of real-time PCR was assessed by testing 47 blood samples from cattle and comparing with the results from conventional PCR. The results show that this real-time PCR assay could specifically detect 10 copies DNA of T. annulata, which is 10-fold sensitivity more than conventional PCR. No cross-reactions were observed with Babesia bovis, Babesia bigemina, Trypanosoma evansi and Theileria equi. Of the 47 field samples collected from Xinjiang Uygur Autonomous Region, China, 36.17% were detected by real-time PCR, and 25.53% were found positive for T. annulata infection by conventional PCR. These results indicated that the real-time PCR assay is a useful approach for detecting T. annulata infections and has potential as an alternative tool for ecological and epidemiological surveillance of ovine theileriosis.
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Affiliation(s)
- Q Y Guo
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, Xinjiang, 830052, PR China
| | - W L Cao
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, Xinjiang, 830052, PR China
| | - B J Wang
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, Xinjiang, 830052, PR China
| | - Z B Wang
- Yili Entry-exit Inspection and Quarantine Bureau, Yining, Xinjiang, 835000, PR China
| | - S Wang
- Department of Human Parasitology, School of Basic Medical Science, Xinxiang Medical College, Xinxiang, Henan, 453003, PR China
| | - Chahan Bayin
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, Xinjiang, 830052, PR China
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24
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Chen GF, Shi TP, Wang BJ, Wang XY, Zang Q. EFFICACY OF DIFFERENT RESECTIONS ON NON-MUSCLE-INVASIVE BLADDER CANCER AND ANALYSIS OF THE OPTIMAL SURGICAL METHOD. J BIOL REG HOMEOS AG 2015; 29:465-470. [PMID: 26122238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This study aimed to analyze the clinical efficacy of different resections in treating non-muscle-invasive bladder cancer (NMIBC), including partial cystectomy, transurethral resection of bladder tumor (TURBT) and holmium laser resection of bladder tumor. Two hundred and sixteen patients were recruited with NMIBC who were available for follow-up visits in hospital, including 62 cases treated with partial cystectomy, 90 cases treated with TURBT and 64 cases with holmium laser resection. Analysis was made on the cases with tumor relapse in the two years, on operation time, blood loss, time for indwelling urinary catheter, hospital stay and complications after operation. Results were compared to the clinical efficacy of these operation patterns. It was found that the two-year relapse rate for TURBT group, partial cystectomy group and Holmium laser resection group was 41%, 31%, and 33% respectively, and the difference had no statistical significance (p>0.05). Both the TURBT group and holmium laser resection group had shorter operation time, hospital stay and time for indwelling urinary catheter as well as much less blood loss when compared with the partial cystectomy group; the difference had statistical significance (p<0.001). In terms of complications, the TURBT group was likely to induce obturator nerve reflex and bladder perforation while the partial cystectomy group was likely to induce bladder spasm. Therefore, this study presumes that holmium laser resection and TURBT are much safer and quicker for recovery and obviously superior to the partial cystectomy.
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Affiliation(s)
- G F Chen
- Department of Urology, the General Hospital of the Chinese Peoples Liberation Army, Haidian, Beijing, China
| | - T P Shi
- Department of Urology, the General Hospital of the Chinese Peoples Liberation Army, Haidian, Beijing, China
| | - B J Wang
- Department of Urology, the General Hospital of the Chinese Peoples Liberation Army, Haidian, Beijing, China
| | - X Y Wang
- Department of Urology, the General Hospital of the Chinese Peoples Liberation Army, Haidian, Beijing, China
| | - Q Zang
- Department of Urology, the General Hospital of the Chinese Peoples Liberation Army, Haidian, Beijing, China
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Guo SG, Guan SH, Wang GM, Liu GY, Sun H, Wang BJ, Xu F. Clinical research of persimmon leaf extract and ginkgo biloba extract in the treatment of vertebrobasilar insufficiency. J BIOL REG HOMEOS AG 2015; 29:151-157. [PMID: 25864752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This paper aims to compare the curative effects of persimmon leaf extract and ginkgo biloba extract in the treatment of headache and dizziness caused by vertebrobasilar insufficiency. Sixty patients were observed, who underwent therapy with persimmon leaf extract and ginkgo biloba extract based on the treatment of nimodipine and aspirin. After 30 days, 30 patients treated with persimmon leaf extract and 30 patients with ginkgo biloba extract were examined for changes in hemodynamic indexes and symptoms, such as headache and dizziness. The results showed statistically significant differences of 88.3% for the persimmon leaf extract and 73.1% for the ginkgo biloba extract, P < 0.05. Compared to the group of ginkgo biloba extract, the group of persimmon leaf extract had more apparent improvement in the whole blood viscosity, plasma viscosity, fibrinogen, hematokrit, and platelet adhesion rate, and the difference was statistically significant (P < 0.05 or P < 0.01). Based on these analyses, it can be concluded that persimmon leaf extract is better than ginkgo biloba extract in many aspects, such as cerebral circulation improvement, cerebral vascular expansion, hypercoagulable state lowering and vertebrobasilar insufficiency-induced headache and dizziness relief.
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Affiliation(s)
- S G Guo
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - S H Guan
- Department of Anesthesiology, Taian Central Hospital, Taian, China
| | - G M Wang
- Department of Anesthesiology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - G Y Liu
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - H Sun
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - B J Wang
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - F Xu
- Department of Neurology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Wang B, Liu M, Wang Y, Dai J, Tao J, Wang S, Zhong N, Chen Y. Association between SNPs in genes involved in folate metabolism and preterm birth risk. Genet Mol Res 2015; 14:850-9. [DOI: 10.4238/2015.february.2.9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Zhao Y, Ding M, Pang H, Xu XM, Wang BJ. Relationship between genetic polymorphisms in the DRD5 gene and paranoid schizophrenia in northern Han Chinese. Genet Mol Res 2014; 13:1609-18. [PMID: 24668635 DOI: 10.4238/2014.march.12.13] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Dopamine (DA) has been implicated in the pathophysiol-ogy of several psychiatric disorders, including schizophrenia. Thus, genes related to the dopaminergic (DAergic) system are good candidate genes for schizophrenia. One of receptors of the DA receptor system is dopa-mine receptor 5 (DRD5). Single nucleotide polymorphisms (SNPs) in the regulatory regions of DRD5 gene may affect gene expression, influence biosynthesis of DA and underlie various neuropsychiatric disorders re-lated to DA dysfunction. The present study explored the association of SNPs within the DRD5 gene with paranoid schizophrenia in Han Chinese. A total of 176 patients with schizophrenia and 206 healthy controls were genotyped for four DRD5 SNPs (rs77434921, rs2076907, rs6283, and rs1800762). Significant group differences were observed in the allele and genotype frequencies of rs77434921 and rs1800762 and in the frequen-cies of GC haplotypes corresponding to rs77434921-rs1800762. Our find-ings suggest that common genetic variations of DRD5 are likely to con-tribute to genetic susceptibility to paranoid schizophrenia in Han Chinese. Further studies in larger samples are needed to replicate this association.
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Affiliation(s)
- Y Zhao
- Department of Forensic Medicine, China Medical University, Shenyang, China
| | - M Ding
- Department of Forensic Medicine, China Medical University, Shenyang, China
| | - H Pang
- Department of Forensic Medicine, China Medical University, Shenyang, China
| | - X M Xu
- Department of Forensic Medicine, China Medical University, Shenyang, China
| | - B J Wang
- Department of Forensic Medicine, China Medical University, Shenyang, China
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Xu XM, Ding M, Pang H, Wang BJ. TPH2 gene polymorphisms in the regulatory region are associated with paranoid schizophrenia in Northern Han Chinese. Genet Mol Res 2014; 13:1497-507. [PMID: 24668623 DOI: 10.4238/2014.march.12.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In the last years, serotonin (5-HT) has been related with the pathophysiology of several psychiatric disorders, including schizophrenia. Thus, genes related to the serotonergic (5-HTergic) system are good candidate genes for schizophrenia. The rate-limiting enzyme of 5-HT synthesis is tryptophan hydroxylase 2 (TPH2). Single nucleotide polymorphisms (SNPs) in the regulatory regions of TPH2 gene may affect gene expression and biosynthesis of 5-HT triggering to various neuropsychiatric disorders related to 5-HT dysfunction. The present study explored the association of SNPs within the TPH2 gene with paranoid schizophrenia in Han Chinese. A total of 164 patients with schizophrenia and 244 healthy controls were genotyped for six TPH2 SNPs (rs4570625, rs11178997, rs11178998, rs41317118, rs17110747, and rs41317114). Significant group differences were observed in the allele and genotype frequencies of rs4570625 and in the frequencies of GTA and TTA haplotypes corresponding to rs4570625-rs11178997-rs11178998. Our findings suggest that common genetic variations of TPH2 are likely to contribute to genetic susceptibility to paranoid schizophrenia in Han Chinese. Further studies in larger samples are needed to replicate this association.
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Affiliation(s)
- X M Xu
- Department of Forensic Medicine, China Medical University, Shenyang, China
| | - M Ding
- Department of Forensic Medicine, China Medical University, Shenyang, China
| | - H Pang
- Department of Forensic Medicine, China Medical University, Shenyang, China
| | - B J Wang
- Department of Forensic Medicine, China Medical University, Shenyang, China
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Liu YP, Zhao DW, Wang WM, Wang BJ, Zhang Y, Li ZG. Association of the g.27563G>A osteoprotegerin genetic polymorphism with bone mineral density in Chinese women. Genet Mol Res 2014; 13:3560-6. [PMID: 24615112 DOI: 10.4238/2014.february.14.9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Osteoporosis is a common multifactorial disease in postmenopausal women. This study aimed to investigate the association of the g.27563G>A osteoprotegerin (OPG) genetic polymorphism with bone mineral density (BMD) and osteoporosis. A case-control study was carried out with 435 osteoporosis postmenopausal women cases and 442 age-matched healthy controls. The BMD at the femoral neck hip, lumbar spine (L₂₋₄), and total hip were assessed by Norland XR-46 dual-energy X-ray absorptiometry. The genotypes of the g.27563G>A genetic polymorphism were detected by created restriction site-polymerase chain reaction and verified by DNA sequencing methods. We detected that the g.27563G>A genetic polymorphism was a non-synonymous mutation that resulted in an arginine (Arg) to glutamine (Gln) amino acid replacement (p.Arg333Gln). Significant differences were found in the BMD of the femoral neck hip, lumbar spine (L₂₋₄), and total hip among different genotypes of the g.27563G>A genetic polymorphism. Subjects with the genotype GG had significantly higher BMD values than those with genotypes GA and AA (P < 0.05). Our data indicated that the A allele of the g.27563G>A genetic polymorphism in OPG could be associated with lower BMD values in the Chinese postmenopausal women evaluated, and that it might be an increased risk factor for osteoporosis.
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Affiliation(s)
- Y P Liu
- Dalian University of Technology, Dalian, Liaoning Province, China
| | - D W Zhao
- Department of Orthopaedic Surgery, The Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning Province, China
| | - W M Wang
- Department of Orthopaedic Surgery, The Affiliated Zhongshan Hospital of Dalian University, Dalian, Liaoning Province, China
| | - B J Wang
- Dalian University of Technology, Dalian, Liaoning Province, China
| | - Y Zhang
- Dalian University of Technology, Dalian, Liaoning Province, China
| | - Z G Li
- Dalian University of Technology, Dalian, Liaoning Province, China
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Zhao WJ, Wang BJ, Wei CM, Yuan GY, Bu FL, Guo RC. Determination of glycyrrhetic acid in human plasma by HPLC-MS method and investigation of its pharmacokinetics. J Clin Pharm Ther 2008; 33:289-94. [DOI: 10.1111/j.1365-2710.2008.00899.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liu XY, Wang BJ, Jiang CY, Liu SJ. Ornithinimicrobium pekingense sp. nov., isolated from activated sludge. Int J Syst Evol Microbiol 2008; 58:116-9. [DOI: 10.1099/ijs.0.65229-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Hu ZQ, Dong RH, Zhou ZW, Dai JZ, Pan L, Wang BJ. [The pathological changes of nasopharyngeal carcinoma cases treated by stereotactic radiosurgery]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 2000; 14:491-3. [PMID: 12563938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To study the pathological changes of nasopharyngeal carcinoma cases after the treatment of stereotactic radiosurgery. METHOD 15 cases with recurrent or residual squamous cell carcinoma of nasopharynx diagnosed as T1-4 N0M0 were selected, which had undergone previous radiotherapy. The patients were treated by Gamma Knife while the isodose curve was 50% and the margin dose was 20 Gy. The nasopharynx biopsy was performed before the treatment and 1, 3, 6, 12 months after the treatment. The biopsy specimen was taken to make a pathological examination. RESULT 1. Before the Gamma Knife treatment, carcinoma cell could be seen in the tissue; 2. 1-3 months after the treatment, cell necrosis and acute inflammation cell infiltration could be seen in the target; 3. 6-12 months after the treatment, infiltration of chronic inflammation cell, proliferation of fibrous tissue and capillary could be found in the target. CONCLUSION This research implies that the short-term pathological changes after the treatment of stereotactic radiosurgery can be defined as two phases: The first phase occurs from 1 to 3 months after the treatment called necrosis period. The second phase occurs from 6 to 12 months after the Gamma Knife treatment named as absorption period.
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Affiliation(s)
- Z Q Hu
- Department of Otolaryngology, Huashan Hospital, Shanghai Medical University, Shanghai 200040
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Liu LM, Liang J, Wang BJ, Ding M, Li JP, Li CM, Xiao YZ, Jia JT. [HLA-DRB1 typing by PCR-sequence specific primers for paternity determination]. Fa Yi Xue Za Zhi 1999; 15:201-3, 254. [PMID: 12536433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
HLA-DRB1 typing by PCR-SSP technique was first used for paternity testing. The analysis of 42 paternity cases shows that this identification method is simple, fast and reliable and has high exclusion probability of paternity (66.3%). This method can also be applied to the study of transplantation, HLA associated disease and anthropogenesis.
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Affiliation(s)
- L M Liu
- Department of Forensic Medicine, China Medical University, Shenyang 110001, P. R. China
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Abstract
Construction workers are known to have occupational dermatoses. The prevalence of such dermatoses was unknown in Taiwanese construction workers. The objective of this study was to determine the work exposure, prevalence of skin manifestations, and sensitivity to common contact allergens in cement workers of southern Taiwan. A total of 1147 current regular cement workers were telephone-interviewed about skin problems during the past 12 months, work exposure, and personal protection. Among those interviewed, 166 were examined and patch tested with common contact allergens. A high % of cement workers reported skin problems in the past 12 months. More men (13.9%) reported skin problems possibly related to work than women (5.4%). Prevalence was associated with lower use of gloves, duration of work as cement worker, and more time in jobs involving direct manual handling of cement, especially tiling. A high % of dermatitis was noted in the 166 workers examined, which correlated with reported skin problems. On patch testing, construction workers had a high frequency of sensitivity to chromate. Sensitivity to chromate or cobalt was associated with reported skin problems, or dorsal hand dermatitis on examination. These workers' dermatitis was under-diagnosed and inadequately managed. It is concluded that cement workers in southern Taiwan had a high prevalence of skin problems related to cement use. Protective measures, work practice, and physician education should be improved to prevent or manage such problems.
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Affiliation(s)
- Y L Guo
- Department of Environmental and Occupational Health, National Cheng Kung University Medical College, Tainan, Taiwan, ROC
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Liu YH, Koda Y, Soejima M, Pang H, Wang BJ, Kim DS, Oh HB, Kimura H. The fusion gene at the ABO-secretor locus (FUT2): absence in Chinese populations. J Hum Genet 1999; 44:181-4. [PMID: 10319583 DOI: 10.1007/s100380050138] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
The fusion gene (se(fus)) is a null allele of the secretor type alpha (1, 2) fucosyltransferase gene (FUT2) and was first found in a Japanese population. It has not yet been reported in any other ethnic population. In the present study, we investigated the distribution of the fusion gene of the FUT2 locus in five populations from three ethnic groups in East Asia. The fusion gene was found in two additional Japanese populations with a high frequency (0.0551 in Okinawa and 0.0792 in Akita) and, for the first time outside Japan, in a Korean population, at a very low frequency (0.0063 in Seoul). In contrast, we found no fusion gene in two Chinese populations. These findings showed that the FUT2 fusion gene was ubiquitous in Japanese, but was rare in neighboring populations, suggesting that the FUT2 fusion gene had emerged from within the Japanese. Additionally, a new null allele with a C-to-T substitution at nucleotide 658 was found in one individual native of southern China.
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Affiliation(s)
- Y H Liu
- Department of Forensic Medicine, Kurume University School of Medicine, Japan
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Abstract
Thirteen patients (11 males, 2 females) with cerebral hemangioblastomas (HABs) were treated with Gamma Knife radiosurgery (GKR). Four patients had multiple lesions in the brain. The remainder had a single lesion. The total number of lesions was 20. Eight cases had recurrent or residual HABs after surgery. In one case diagnosis was confirmed following surgical resection 22 months after GKR. One case was diagnosed by computed tomography (CT), magnetic resonance imaging (MRI) and digital subtraction angiography (DSA). Three patients had von Hippel Lindau (VHL) disease. The mean tumor diameter was 20 mm (range 7.5 to .55 mm). The mean margin dose was 18 Gy (range 12 to 24 Gy). In 5 cases, there was an improvement of symptoms and reduction in tumor volume. In 4 cases the tumor volume and clinical status remained unchanged. In 3 patients, there was clinical deterioration. The cause of this was an increase in tumor cyst volume in 2 cases. Subsequent surgery resulted in clinical improvement. In a third patient with multiple lesions, deterioration was the result of adverse radiation effects in the medulla oblongata. Three patients were subjected to post GKR-surgery with subsequent histopathology. In one, this was due to cyst expansion. In one, it was at the patient's insistence in the presence of a stable clinical and radiological picture. In a third patient with a temporal lobe tumor, it was because of late-developing epileptic seizures. The histopathological findings in these patients showed varying degrees of small vessel thickening and occlusion together with loss of tumor cells. The observations varied in degree according to the time between GKR and the secondary operation. These findings indicate the effectiveness of the treatment. The reduction in vascularity suggests that GKR could make subsequent surgery less hazardous. The observations of this study suggest that while GKR is not adequately reliable for the control of HAB cysts, it can be an effective treatment for solid tumors, especially those in eloquent regions.
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Affiliation(s)
- L Pan
- Department of Neurosurgery, Hua Shan Hospital, Shanghai Gamma Knife Hospital, Shanghai Medical University, Shanghai
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Guo YL, Wang BJ, Lee CC, Wang JD. Prevalence of dermatoses and skin sensitisation associated with use of pesticides in fruit farmers of southern Taiwan. Occup Environ Med 1996; 53:427-31. [PMID: 8758040 PMCID: PMC1128501 DOI: 10.1136/oem.53.6.427] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVES Agricultural workers are known to have occupational skin diseases. The prevalence and pattern of skin diseases are unknown in Taiwanese fruit farmers. The objective of this study is to determine the work exposure, prevalence of skin diseases, and sensitivity to common skin allergens and agricultural chemicals in fruit farmers of southern Taiwan. METHODS 122 fruit farmers who regularly prepared and sprayed pesticides and a group of 63 printing press workers with no known exposure to pesticides were examined and patch tested with common skin allergens and agricultural chemicals. The farmers were also interviewed for their work habits, use of protective clothing, and exposure to pesticides. RESULTS Most farmers reported regular use of hat, boots, and mask, but not gloves, raincoat, and goggles. This resulted in frequent skin contact with pesticides especially on the hands and face. About 30% of farmers had hand dermatitis, and more than two thirds had pigmentation and thickening on the hands. Fungal infection of the skin was noted in a quarter of subjects. By patch test, farmers and the printing press workers had a similar rate of sensitivity to common skin allergens. 40% of farmers were sensitive to agricultural chemical allergens, which was about twofold higher than that of the comparison group. Farmers were most frequently sensitive to Captofol, Folpet, and Captan which were associated with dermatitis on the volar aspects of the hands. CONCLUSIONS Fruit farmers in southern Taiwan had a high prevalence of skin diseases related to use of pesticides, and appropriate protective measures and work practices should be taken to prevent such problems.
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Affiliation(s)
- Y L Guo
- Department of Environmental and Occupational Health, National Cheng Kung University Medical College, Taiwan, Republic of China
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Abstract
From September 1994 to June 1995, eight patients with intractable parkinsonism underwent gamma thalamotomy in our hospital. All of these patients were male, with an average age of 59.3 years. The duration of the disease from initial diagnosis was 2-10 years (mean 6.8 years). All had failed or had serious side effects with antiparkinsonian medicine. Seven cases had tremor-dominant symptoms, while the other had mainly rigidity. Six cases had bilateral symptoms. Computed tomography or magnetic resonance imaging (MRI) was undertaken prior to treatment in all cases to exclude focal brain lesions. Stereotactic MRI was taken with the Leksell frame in place and both T1- and T2-weighted images were obtained. The targets were located in the area of Vim/Voa/Vop based on the Schaltenbrand atlas. In seven cases, two plugged 4-mm-collimator shots were used. The maximum dose was 160 Gy in six cases and 180 Gy in one case. In another case, a single 4-mm-collimator shot was used, and a maximum dose of 160 Gy was delivered to the target center. The border of the internal capsule was outside the 20-30% isodose line. We intended the 50% isodose line to have an oval-shaped region with the use of two shots and should correspond to the shape of Vim. Follow-up data were available for six patients (mean: 4.5 months, range: 2-9 months). Tremor disappeared in three cases and improved in the other three. In one of these six cases, the tremor disappeared just 3 days after gamma thalamotomy. Rigidity improved in four of these six cases. In only one patient, treated with a maximum dose of 180 Gy, was there any contralateral limb weakness, which developed 3 months after treatment and has been recovering gradually. Follow-up MRI T2-weighted images in this case showed that the diameter of the lesion was larger than intended and there was a region of diffuse edema in the thalamus and upper brain stem. No other complications occurred in this series.
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Affiliation(s)
- L Pan
- Department of Neurosurgery, Shanghai Gamma Knife Hospital, Shanghai Medical University, P.R. China
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Abstract
Cetrimide and chlorhexidine are widely used antiseptics. Irritant contact dermatitis from cetrimide has been reported, but only rarely and without pathologic study. We report the clinical and pathologic findings from a series of 18 cases of contact dermatitis caused by antiseptic solutions containing 3% cetrimide and 0.3% chlorhexidine. The patients consisted of 10 males and 8 females, aged from 2 to 62 years. Most patients developed pruritic, burning or painful rashes over the flexors and genitalia after 1 to 4 weeks of daily use of undiluted antiseptics for an underlying pruritic dermatosis. The lesions varied from slight scaling with minimal erythema to fiery or dusky red patches with a glazed surface. The rashes resolved in 2 to 4 weeks after discontinuing the antiseptics. Concentric annular lesions were noted in some patients. Patch testing revealed negative reaction to chlorhexidine 0.5% aq. but irritant reaction to cetrimide 0.5, 1 or 2% aq. and Savlon at 1:3 or 1:6 dilution. Light microscopy showed compact orthokeratosis and confluent parakeratosis without spongiosis. Our study suggests that the dermatitis was an irritant reaction to cetrimide after improper self-application of the antiseptic liquids for underlying pruritic rashes or personal hygiene. Recognition of the characteristic xerosis- or chemical-burn-like features primarily involving the flexors or genital area is essential to the diagnosis.
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Affiliation(s)
- J Y Lee
- Department of Dermatology, National Cheng Kung University Hospital, Tainan, Taiwan
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Abstract
OBJECTIVES To determine the prevalence, clinical features, and patterns of hand dermatosis in hairdressers in Tainan, Taiwan, and to examine the associations between patterns of dermatosis and risk factors such as job description, work exposure, and sensitisation to common allergens. METHODS Interviews, examinations, and patch tests of the hairdressers from nine hairdressing stores randomly selected from Tainan City. Patch test agents included 41 substances with common allergens, shampoo preservatives, hair dyes, permanent waving and bleaching agents. RESULTS 98 hairdressers finished the examination, 83% of them had occupational dermatosis and 32% had scissor induced scars or wounds. Most of the dermatoses belonged to either dry metacarpophalangeal dermatitis or eczema of the fingers. 44% of the hairdressers showed positive skin reaction to one or more patch test agents. The patch test results were different from previous reports in that the most common allergens were nickel, thimerosal, Captan, Kathon CG, and fragrance mix, and that the sensitivity to hair dye and permanent wave ingredients were low. The dry metacarpophalangeal dermatitis was associated with exposure to shampoo, and the eczema of the fingers with skin sensitivity to patch test agents. CONCLUSION Hairdressers in Tainan City had a high prevalence of dermatoses including traumatic wounds, and allergic and irritant contact dermatitis. The rates of sensitivity to some of the common sensitising agents were different from previous reports.
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Affiliation(s)
- Y L Guo
- Department of Environmental and Occupational Health, National Cheng-Kung University Medical Center, Tainan, Taiwan, Republic of China
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Lan LR, Lee JY, Kao HF, Wang BJ, Chen HC. Persistent light reaction with erythroderma caused by musk ambrette: a case report. Cutis 1994; 54:167-70. [PMID: 7813235] [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: 01/27/2023]
Abstract
Persistent light reaction is an uncommon type of photodermatitis caused mainly by musk ambrette, a synthetic fragrance material commonly used in foods and cosmetics. Erythrodermic persistent light reaction is rare. We report a case of erythroderma with underlying persistent light reaction due to musk ambrette. A 71-year-old man showed a photodermatitis that waxed and waned for five years before it became more persistent and finally evolved into erythroderma. Positive results of a photopatch test to musk ambrette and a low minimal erythema dose to ultraviolet B were noted. A biopsy specimen of the erythrodermic lesion revealed spongiotic dermatitis. The erythroderma and photodermatitis responded to systemic steroids and psoralen/ultraviolet A therapy (total dose: 90 J/cm2). We suggest that persistent light reaction be included in the differential diagnosis of erythroderma.
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Affiliation(s)
- L R Lan
- Department of Dermatology, National Cheng-Kung University Hospital, Tainan, Taiwan, Republic of China
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Wang BJ, Lee JY, Wang RC. Fiberglass dermatitis: report of two cases. J Formos Med Assoc 1993; 92:755-8. [PMID: 7904853] [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: 01/27/2023] Open
Abstract
Fiberglass is widely used for insulation and as a reinforcement filling material. Handling fiberglass products may induce contact dermatitis. We report on the first two cases of fiberglass dermatitis reported in Taiwan. The first patient suffered from a severe pruritic eruption two hours after repairing a roof with wave-form ceiling boards. Erythematous maculopapules were present on both hands and finger webs. The second patient was a quality controller of printed circuit boards (PRCBs). She presented with erythematous maculopapules on the face and excoriated papules and lichenified plaques on the trunk and forearms, which had been present for two years. Scrapings of the skin lesions from both patients showed fiberglass spicules of 7.5 to 8 microns in diameter. Similar fibers were detected in scrapings from the wave-form ceiling board and PRCB. Histopathology of the second case revealed spongiotic psoriasiform dermatitis. Patch tests in case 2 with the plastics and glues series, epoxy resin and scrapings from the PRCBs were all negative. Fiberglass dermatitis may be easily misdiagnosed. Clinically, it may resemble scabies, eczematous dermatitis, folliculitis, petechiae and urticaria. A high index of suspicion is essential for a correct diagnosis.
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Affiliation(s)
- B J Wang
- Department of Dermatology, National Cheng-Kung University Hospital, Tainan, Taiwan, R.O.C
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Abstract
In addition to their anti-inflammatory and anti-cancer activities, retinoids have been shown to affect angiogenesis, endothelial proliferation and the process of wound healing. While peripheral vascular occlusion has not been observed as an adverse effect clinically, the effects of retinoids on prostacyclin production in endothelial cells and platelet aggregation are not known. We examined the effects of tretinoin, isotretinoin and etretinate (3.3 x 10(-8) to 3.3 x 10(-5) M) on cytotoxicity by 51Cr-release assay, growth and prostacyclin in bovine carotid endothelial cell cultures, and the aggregation of human platelets induced by ADP. All retinoids showed either no or only small effects on cytotoxicity and human platelet aggregation. Prostacyclin production was not significantly affected except for tretinoin and isotretinoin at 3.3 x 10(-5) M. Endothelial proliferation was affected by all three retinoids in a dose-dependent fashion; for tretinoin and isotretinoin an inhibitory trend was noted as the concentration increased but the reverse was true for etretinate. Retinoids at 3.3 x 10(-5) M induced alterations of typical endothelial morphology; the cells became fibroblastoid. The results of prostacyclin production and platelet aggregation in the present study are consistent with the absence of peripheral vascular occlusion as a side effect clinically.
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Affiliation(s)
- J Y Lee
- Department of Dermatology, National Cheng-Kung University Hospital, Tainan, Taiwan
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Wang BJ, Lee YY, Mak CP, Kao HF, Hsu ML, Hsien JR. Quantitative and morphological changes of Langerhans cells in Bowen's disease from patients with chronic arsenicism. J Formos Med Assoc 1991; 90:1093-8. [PMID: 1687057] [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: 12/28/2022] Open
Abstract
Langerhans cells (LCs) are considered to be responsible for the immunologic presentation of tumor-associated antigens and play a role in the elimination of neoplastic clones. Ultraviolet light B can cause dysfunction and loss of LCs. Both the number and dendritic morphology of LCs are known to be diminished in squamous cell carcinomas from sun-exposed skin. The effects of arsenics on LCs are unknown. Using an OKT-6 monoclonal antibody to stain intraepithelial LCs, we compared their number and morphology in Bowen's lesions and in the perilesional skin from sun-protected sites in ten patients with chronic arsenicism. There was a significant reduction in the numbers of LCs in the Bowen's lesions as compared to the perilesional skin specimens. Loss of dendrites was observed in all Bowen's lesions and in seven of the perilesional skin specimens. Ultrastructurally, the LCs showed an absence of dendrites, but the Birbeck granules were preserved. Since the specimens were not from sun-exposed skin in our study, the findings may be related to chronic arsenic intoxication. The morphologic alteration of LCs observed in the perilesional skin further suggests an arsenic-related systemic dysfunction of the LCs, which in turn may contribute to the development of skin cancers in these patients.
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Affiliation(s)
- B J Wang
- Department of Dermatology, National Cheng-Kung University Hospital, Tainan, Taiwan, R.O.C
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Abstract
A series of studies has been carried out in the field of traditional medicine for searching radioprotective agents. According to the theory of traditional Chinese medicine, many prescriptions were tested with experimental animals. Some of them could raise the survival rate of dogs irradiated with lethal dose of gamma-rays by 30-40%. Some symptoms of radiation sickness could be improved. More than one thousand kinds of Chinese herbs were screened. Some of them have pronounced radioprotective activities. A series of bioactive components were isolated from these herbs. The mechanism of radiation protection were studied. Having the capability of hemopoietic system and immune system may be the characteristics of these Chinese herbs.
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Affiliation(s)
- B J Wang
- Institute of Radiation Medicine, Beijing, People's Republic of China
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Wang BJ, Zhang HJ. [Studies on the chemical constituents of Beijing propolis]. Zhong Yao Tong Bao 1988; 13:37-8, 63. [PMID: 3252989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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47
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Sui YF, Wang BJ, Cui YC, Wang MX, Zeng Y. [Immunofluorescent localization of associated antigen of anti-human nasopharyngeal carcinoma cell monoclonal antibody]. Zhonghua Zhong Liu Za Zhi 1988; 10:95-7. [PMID: 3061767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The immunofluorescent localization of associated antigen of anti-human nasopharyngeal carcinoma (NPC) cell monoclonal antibody (McAb) was performed in different tissues (NPC, non-NPC tumor, chronic inflammation of nasopharyngeal mucosa, adult normal tissue and embryo tissue) with 5 control experiments. McAb (CN-1, Cs-C1) was produced by Department of Microbiology of our college and all the specimens were confirmed by pathology. The results revealed that Cs-C1 antigen was mainly found on the surface of NPC cells with a positive rate of 80.3%. Majority of the positive cells showed yellow-greenish linear fluorescence surrounding the cell membrane while some cells manifested granular fluorescence. In addition, Cs-C1 antigen was also found in a few embryo tissues, epithelial cells of the normal gastric mucosa and cells of the gastric cancer. It is suggested that Cs-C1 antigen be a kind of molecular structure, being gradually produced or increased in quantity during carcinogenesis, and belong to the tumor associated antigen. Cs-C1 antigen could be important in the study of carcinogenic mechanism of NPC cells and valuable to clinical immunodiagnosis.
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Affiliation(s)
- Y F Sui
- Fourth Military Medical College, Xi'an
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Wang BJ, Deng Y, Ma YF, Lei XH. [Chemotherapeutic studies on schistosomiasis, XXXIV. The synthesis of derivatives of alpha-chloro-beta-(5-nitro-2-furyl) acrylamides and alpha-chloro-beta-(5-nitro-2-furyl) vinyl/oxadiazoles]. Yao Xue Xue Bao 1987; 22:923-8. [PMID: 3130745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Feng XB, Wang BJ, Fan XX. [Determination of dihydrochlorides of drugs by linear titration method]. Yao Xue Xue Bao 1987; 22:854-7. [PMID: 3452966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Feng XB, Wang BJ, Fan XX. [Determination of hydrochlorides of drugs by means of the linear titration method--a new approach to replace the non-aqueous titration]. Yao Xue Xue Bao 1986; 21:842-6. [PMID: 3591319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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