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Zheng XH, Shi HL, You JX, Li YS, Li CR. [A study on the distribution characteristics of peripheral retinal defocus in children and adolescents]. Zhonghua Yan Ke Za Zhi 2024; 60:337-342. [PMID: 38583057 DOI: 10.3760/cma.j.cn112142-20231025-00185] [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: 04/08/2024]
Abstract
Objective: To explore the distribution characteristics of peripheral retinal defocus in children and adolescents. Methods: This cross-sectional study included 500 individuals aged 3 to 18 years, who visited the People's Hospital of Lincang, the First Affiliated Hospital of Dali University and Dali Ophthalmology Hospital between January and December 2021. Data of the right eye of each participant was analyzed. There were 226 males (45.20%) and 274 females (54.80%), with an average age of (10.79±3.79) years. All participants underwent post-cycloplegic refraction, optical biometry, and intraocular pressure measurement to obtain spherical equivalent, average corneal curvature, axial length, and intraocular pressure. Multispectral refraction topography was performed to obtain topographic maps and values at various field angles and orientations of peripheral retinal defocus. Based on multispectral refraction topography, peripheral retinal defocus values were categorized as crater type, hemilateral upturn type, saddle type, and relatively flat type. The distribution of different refractive states was analyzed. Results: The spherical equivalent of the 500 participants was(-1.51±2.61) D, axial length was (24.10±1.28) mm, and average corneal curvature was (43.20±1.22) D. Among the 500 eyes, 382 exhibited hyperopic peripheral retinal defocus values, with 316 eyes (82.72%) being myopic. Myopic peripheral retinal defocus values were observed in 118 eyes, with 15 eyes (12.72%) being myopic. Among different types of peripheral retinal defocus values, 112 eyes (22.4%) exhibited a crater type, 153 eyes (30.6%) exhibited a hemilateral upturn type, 107 eyes (21.4%) exhibited a saddle type, and 128 eyes (25.6%) exhibited a flat type. The proportion of myopia was 82.14% (92 eyes), 69.28% (106 eyes), 60.75% (65 eyes), and 3.90% (5 eyes), respectively. The peripheral retinal defocus values at 15°, 30°, and 45° were (0.01±0.08) D, (0.06±0.21) D, and (0.20±0.37) D, respectively. The peripheral retinal defocus values at temporal, inferior, nasal, and superior locations were (0.58±0.69) D, (0.52±0.63) D, (0.21±0.64) D, and (-0.26±0.67) D, respectively. Notably, the superior primarily manifested as myopic, while the others were predominantly hyperopic. Conclusions: Approximately three-fourths of children and adolescents exhibit hyperopic peripheral retinal defocus values, with a higher prevalence of myopia in this subgroup. The hyperopia peripheral retinal defocus value increases with the distance from the retina to the macula. The peripheral retinal defocus values between superior and inferior, nasal and temporal locations are asymmetrical, with the temporal hyperopic peripheral retinal defocus value being most prominent and the superior myopic peripheral retinal defocus value being most evident.
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Affiliation(s)
- X H Zheng
- Department of Ophthalmology, The People's Hospital of Lincang, Lincang 677000, China
| | - H L Shi
- Department of Ophthalmology, The People's Hospital of Lincang, Lincang 677000, China
| | - J X You
- Department of Ophthalmology, the First Affiliated Hospital of Dali University, Dali 671000, China
| | - Y S Li
- Department of Ophthalmology, The People's Hospital of Lincang, Lincang 677000, China
| | - C R Li
- Department of Ophthalmology, Dali Bai Autonomous Prefecture People's Hospital, Dali 677000, China
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Zhang S, Zhornitsky S, Wang W, Le TM, Dhingra I, Chen Y, Li CR. Resting state hypothalamic and dorsomedial prefrontal cortical connectivity of the periaqueductal gray in cocaine addiction. Addict Biol 2021; 26:e12989. [PMID: 33300238 DOI: 10.1111/adb.12989] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/16/2020] [Accepted: 10/31/2020] [Indexed: 12/14/2022]
Abstract
Cocaine-dependent (CD) individuals demonstrate significant anxiety and dysphoria during withdrawal, a negative emotional state that may perpetuate drug seeking and consumption. An extensive body of work has focused on characterizing reward circuit dysfunction, but relatively little is known about the pain circuit during cocaine withdrawal. In an earlier study, we highlighted how cue-elicited functional connectivity between the periaqueductal gray (PAG), a subcortical hub of the pain circuit, and ventromedial prefrontal cortex supports tonic craving in recently abstinent CD. The functional organization of the brain can be characterized by intrinsic connectivities, and it is highly likely that the resting state functional connectivity (rsFC) of the PAG may also be altered in association with cocaine use variables. Here, we examined this issue in 52 CD and 52 healthy control (HC) participants. Imaging data were processed with published routines, and the findings were evaluated with a corrected threshold. In a covariance analysis, CD as compared with HC showed higher PAG rsFC with the hypothalamus, dorsomedial prefrontal, and inferior parietal cortices. Further, these connectivities were correlated negatively with tonic cocaine craving and recent cocaine use, respectively. Higher hypothalamic and frontoparietal rsFC with the PAG may reflect a compensatory process to regulate craving and compulsive drug use. The findings provide additional evidence in humans implicating the PAG circuit and may help research of the role of negative reinforcement in sustaining habitual drug use in cocaine addiction.
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Affiliation(s)
- Sheng Zhang
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Simon Zhornitsky
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Wuyi Wang
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Thang M. Le
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Isha Dhingra
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Yu Chen
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
| | - Chiang‐shan R. Li
- Department of Psychiatry Yale University School of Medicine New Haven CT USA
- Department of Neuroscience Yale University School of Medicine New Haven CT USA
- Interdepartmental Neuroscience Program Yale University New Haven CT USA
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Zheng W, Li H, Cui B, Liang P, Wu Y, Han X, Li CR, Li K, Wang Z. Altered multimodal magnetic resonance parameters of basal nucleus of Meynert in Alzheimer's disease. Ann Clin Transl Neurol 2020; 7:1919-1929. [PMID: 32888399 PMCID: PMC7545587 DOI: 10.1002/acn3.51176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 08/12/2020] [Accepted: 08/19/2020] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES We aimed to examine how gray matter volume (GMV), regional blood flow (rCBF), and resting-state functional connectivity (FC) of the basal nucleus of Meynert (BNM) are altered in 40 patients with AD, relative to 30 healthy controls (HCs). METHODS We defined the BNM on the basis of a mask histochemically reconstructed from postmortem human brains. We examined GMV with voxel-based morphometry of high-resolution structural images, rCBF with arterial spin labeling imaging, and whole-brain FC with published routines. We performed partial correlations to explore how the imaging metrics related to cognitive and living status in patients with AD. Further, we employed receiver operating characteristic analysis to compute the "diagnostic" accuracy of these imaging markers. RESULTS AD relative to HC showed lower GMV and higher rCBF of the BNM as well as lower BNM connectivity with the right insula and cerebellum. In addition, the GMVs of BNM were correlated with cognitive and daily living status in AD. Finally, these imaging markers predicted AD (vs. HC) with an accuracy (area under the curve) of 0.70 to 0.86. Combination of BNM metrics provided the best prediction accuracy. CONCLUSIONS By combining multimode MR imaging, we demonstrated volumetric atrophy, hyperperfusion, and disconnection of the BNM in AD. These findings support cholinergic dysfunction as an etiological marker of AD and related dementia.
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Affiliation(s)
- Weimin Zheng
- Department of RadiologyAerospace Center HospitalBeijing100049China
| | - Hui Li
- Department of RadiologyChaoyang Hospital of Capital Medical UniversityBeijing100020China
| | - Bin Cui
- Department of RadiologyAerospace Center HospitalBeijing100049China
| | - Peipeng Liang
- School of PsychologyCapital Normal UniversityBeijing Key Laboratory of Learning and CognitionBeijing100037China
| | - Ye Wu
- Department of RadiologyAerospace Center HospitalBeijing100049China
| | - Xu Han
- Department of RadiologyAerospace Center HospitalBeijing100049China
| | - Chiang‐shan R. Li
- Department of PsychiatryYale University School of MedicineNew HavenConnecticutUSA
- Department of NeuroscienceYale University School of MedicineNew HavenConnecticutUSA
| | - Kuncheng Li
- Department of RadiologyXuanwu Hospital of Capital Medical UniversityBeijing100053China
| | - Zhiqun Wang
- Department of RadiologyAerospace Center HospitalBeijing100049China
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Li CR, Yu QL, Yang B, Zhang B, Liu Y. [Clinical value of holographic multimodal real-time three-dimensional navigation technology in the surgical location of pulmonary lesions]. Zhonghua Yi Xue Za Zhi 2020; 100:2452-2456. [PMID: 32819062 DOI: 10.3760/cma.j.cn112137-20200207-00214] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical value of holographic multimodal real-time three-dimensional navigation (3D-HMRN) technology for navigation and localization of pulmonary micro lesions. Methods: A total of 152 patients who underwent thoracoscopic partial resection of small pulmonary nodules in the Department of Thoracic Surgery of the First Medical Center of Chinese PLA General Hospital from June 2017 to December 2019 were retrospectively collected and were divided into two groups by computer random number. The experimental group consists of 76 patients (31 males and 45 females) with a mean age of (47±17) years. CT scan in lateral position navigation mode and 3D reconstruction of the surgical area were performed on all patients. Before the operation, holographic multimodal real-time 3D navigation technology was used to guide the puncture of the lesion. After the operation was completed, the intraoperative CT was used to verify the location of the puncture and determine the accuracy and error rang of the puncture. The control group consists of 76 patients (34 males and 42 females) with a mean age of (50±19) years. Intraoperative CT positioning was directly subjected to the patients. And then, the localization data of the two groups were compared and statistically analyzed. Results: Seventy-six cases of positioning puncture using navigation technology, the first success rate was 97.4%, the error was (3.9±0.9) mm, and the average operation time was (4.4±1.2) min; while the success rate of one-time CT positioning during routine surgery was 98.7%, the error was (3.5±1.0) mm, and the average operating time was (10.7±2.6) min. Compared with intraoperative CT positioning, the success rate and positioning accuracy of 3D-HMRN were not statistically significant (both P>0.05), however the operation time was significantly shortened (P<0.01). Conclusion: The holographic multi-modal real-time 3D navigation technology saves time and has accurate positioning, which may be used as an effective method for localization of pulmonary micro nodules during surgical treatment.
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Affiliation(s)
- C R Li
- Department of Thoracic Surgery, the First Medical Center of People's Liberation Army General Hospital, Beijing 100853, China
| | - Q L Yu
- the First Medical Center of People's Liberation Army General Hospital, Beijing 100853, China
| | - B Yang
- Department of Thoracic Surgery, the First Medical Center of People's Liberation Army General Hospital, Beijing 100853, China
| | - B Zhang
- Department of Thoracic Surgery, the First Medical Center of People's Liberation Army General Hospital, Beijing 100853, China
| | - Y Liu
- Department of Thoracic Surgery, the First Medical Center of People's Liberation Army General Hospital, Beijing 100853, China
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Zhornitsky S, Le TM, Dhingra I, Adkinson BD, Potvin S, Li CR. Interpersonal Risk Factors for Suicide in Cocaine Dependence: Association with Self-Esteem, Personality Traits, and Childhood Abuse. Suicide Life Threat Behav 2020; 50:867-883. [PMID: 32030810 PMCID: PMC7518050 DOI: 10.1111/sltb.12621] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 01/10/2020] [Indexed: 01/31/2023]
Abstract
OBJECTIVE Studies have linked cocaine dependence to suicidality. According to the Interpersonal Theory of Suicide, suicidal behavior becomes likely with the simultaneous presence of perceived burdensomeness (PB), lack of (or thwarted) belongingness (TB), and acquired fearlessness about death (FAD). Here, we examined personality and other variables, including depression, self-esteem, childhood abuse, and substance use, as predictors of these risk factors in cocaine-dependent individuals (CDs). METHODS Seventy CDs and 70 healthy controls (HCs) participated. We examined group differences in a group-by-sex analysis of variance and identified predictors of PB, TB, and FAD in stepwise regressions. RESULTS CDs exhibited elevated PB and TB but not FAD, compared to HCs. CDs also exhibited elevated harm avoidance, novelty seeking, depression, and lower self-esteem and reward dependence. Females reported elevated sexual abuse, harm avoidance, reward dependence, depression, but lower FAD, relative to males, among CDs and HCs. Among CDs, PB was predicted by lower self-esteem and greater emotional abuse; TB was predicted by lower self-esteem and reward dependence, as well as greater emotional and sexual abuse; and FAD was predicted by lower harm avoidance and greater physical abuse. CONCLUSIONS Interventions targeting suicidality in cocaine dependence should take into consideration self-esteem, personality traits, and childhood abuse.
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Affiliation(s)
- Simon Zhornitsky
- Department of Psychiatry Yale University School of Medicine New Haven Connecticut
| | - Thang M. Le
- Department of Psychiatry Yale University School of Medicine New Haven Connecticut
| | - Isha Dhingra
- Department of Psychiatry Yale University School of Medicine New Haven Connecticut
| | - Brendan D. Adkinson
- Interdepartmental Neuroscience Program Yale University School of Medicine New Haven Connecticut
| | - Stephane Potvin
- Centre de recherche de l'Institut Universitaire en Santé Mentale de Montréal Montreal QC Canada
- Department of Psychiatry Faculty of Medicine Université de Montréal Montréal QC Canada
| | - Chiang‐shan R. Li
- Department of Psychiatry Yale University School of Medicine New Haven Connecticut
- Interdepartmental Neuroscience Program Yale University School of Medicine New Haven Connecticut
- Department of Neuroscience Yale University School of Medicine New Haven Connecticut
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Xiao Y, Cao Y, Huang L, Zheng M, Meng FK, Huang W, Li CR, Huang M, Zhang YC, Zhang DH, Deng JN, Meng L, Sun HY, Tang Y, Li DJ, Wan Y, Xu L, Zhou JF. [Management of patients with hematological malignancies in outbreak areas of COVID-19 epidemic: our experience at Wuhan Tongji Hospital]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:612-614. [PMID: 32810973 PMCID: PMC7449773 DOI: 10.3760/cma.j.issn.0253-2727.2020.2020.07.016] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Indexed: 11/29/2022]
Affiliation(s)
- Y Xiao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Cao
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - L Huang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - M Zheng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - F K Meng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - W Huang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C R Li
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - M Huang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y C Zhang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - D H Zhang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J N Deng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - L Meng
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H Y Sun
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Tang
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - D J Li
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Wan
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - L Xu
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J F Zhou
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Liao JW, Wang SS, Yang HH, Ma P, Li CR, Pan JY. [Comparative analysis of serum glutamate and gamma-aminobutyric acid levels in patients with bipolar depressive disorder and major depression disorder]. Zhonghua Yi Xue Za Zhi 2020; 100:1800-1804. [PMID: 32536126 DOI: 10.3760/cma.j.cn112137-20191025-02319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the difference of serum glutamate (Glu) and gamma- aminobutyric acid (GABA) levels between depressive patients and bipolar disorder patients with depressive episodes. Methods: From May 2018 to March 2019, forty-seven patients with depression (depression group) and 45 patients with bipolar depressive episode (bipolar depression group) were selected from the department of psychiatry, the First Affiliated Hospital of Jinan University, and 41 healthy controls (healthy control group) were simultaneously recruited from the community. The subjects' depression and anxiety were assessed by 17 items of Hamilton depression scale (HAMD-17) and Hamilton Anxiety Scale (HAMA). The serum levels of Glu, GABA and Glu decarboxylase (GAD) were detected by enzyme-linked immunosorbent assay (ELISA) . Results: The serum Glu level ( (36±7) mg/L, (37±7) mg/L vs (28±4) mg/L, F=10.97, P<0.01) and Glu/GABA ratio (5.77±0.35, 8.18±0.24 vs 3.35±0.33, F=37.68, P<0.01) in depression and bipolar depression groups were higher than those of healthy control group, while the GABA level ((6.1±0.7) μmol/L,(4.1±0.8) μmol/L vs (8.1±1.2) μmol/L, F=21.61, P<0.01) and GAD ((31±6) U/L, (31±6) U/L vs (35±6) U/L, F=5.61, P<0.01) were lower than those of healthy control group. The level of serum GABA in bipolar depression group was lower than that in depression group. However, Glu/GABA was higher in bipolar depression group than that in depression group (P<0.01). The level of serum GABA in depression group was negatively correlated with HAMD sleep disorder factor (r=-0.46, P=0.01). Conclusions: Both depression and bipolar depression have abnormal levels of Glu, GABA neurotransmitters and imbalance between Glu and GABA in peripheral blood circulation. Moreover, these abnormalities are more obvious in patients with bipolar depression.
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Affiliation(s)
- J W Liao
- Department of Psychiatry, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - S S Wang
- Sleep Medicine Center, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - H H Yang
- Department of Psychiatry, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - P Ma
- Department of Psychiatry, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - C R Li
- Department of Psychiatry, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
| | - J Y Pan
- Department of Psychiatry, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
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Hari SR, Srinivas V, Li CR, Kuo YK. Thermoelectric properties of rare-earth doped Fe 2VAl Heusler alloys. J Phys Condens Matter 2020; 32:355706. [PMID: 32353843 DOI: 10.1088/1361-648x/ab8ec6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
The low-temperature electrical transport properties of the rare-earth (RE) Ce, Dy, Sm element doped Fe2VAl Heusler alloys have been investigated. A significant enhancement in the Seebeck coefficientS(peak values of about -125 to -160μV K-1) is observed as compared to the pure Fe2VAl (peak value of about 40μV K-1). It is observed that the thermal conductivity reduced by 50% in RE-doped samples. The single parabolic band model has been used to analyze the experimental data and to understand the role of fundamental parameters like the Lorenz number. The lattice contribution to the total thermal conductivity was analyzed through the Callaway model, which in turn provided the insight into the phonon scattering in these alloys. Finally, we demonstrate a significant improvement in power factor and figure of merit at all temperatures for the RE-doped Fe2VAl alloys.
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Affiliation(s)
- Sudhakara Rao Hari
- Department of Physics, Indian Institute of Technology Madras, Chennai, India
| | - V Srinivas
- Department of Physics, Indian Institute of Technology Madras, Chennai, India
| | - C R Li
- Department of Physics, National Dong Hwa University, Taiwan
| | - Y K Kuo
- Department of Physics, National Dong Hwa University, Taiwan
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Yuan RF, Dong YJ, Li CR, Huang WR, Zhang LM, Zhu Q, Xu L, Xu YJ, Xu Q, Gao GX, Jin FY. [Epidemiological analysis of cytogenetic abnormalities in patients with newly-diagnosed multiple myeloma: a multi-center retrospective study]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:10-15. [PMID: 32023748 PMCID: PMC7357912 DOI: 10.3760/cma.j.issn.0253-2727.2020.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
目的 了解我国初诊多发性骨髓瘤(MM)患者细胞遗传学异常(CA)的构成和频率,基于2018年更新的危险分层标准(mSMART3.0)分析双打击MM(DHMM)及三打击MM(THMM)的发生率。 方法 纳入全国5个中心的初诊MM患者,磁珠分选CD138细胞或浆细胞比例≥50%的骨髓标本行初诊间期FISH(iFISH)检测CA的基线结果,分析原发CA(pCA)、继发CA(sCA)、高危(HR)CA和DHMM/THMM的发生率,并分析不同CA组合的情况。 结果 共纳入初诊MM患者1 015例,IgH重排、del(13q)/13q14、1q21扩增、del(17p)发生率分别为54.0%、46.4%、46.1%、9.9%。其中,1q21扩增拷贝数=3、≥4的发生率分别为35.8%、12.7%。454例患者具有完整CA基线结果,pCA中t(4;14)、t(11;14)和t(14;16)发生率分别为14.1%、11.2%和4.8%;44.3%患者携带≥2种CA,包括2种CA(28.0%)、3种CA(13.4%)和≥4种CA(2.9%);83.3%的1q扩增患者伴其他CA,以del(13q)/13q14最常见(61.1%),IgH重排次之(31.5%);95.0%的del(17p)患者伴其他CA,以del(13q)/13q14最常见(75.2%),1q21扩增次之(49.5%);68.6%的IgH重排患者伴其他CA,以del(13q)/13q14和1q21扩增最常见(均为61.9%);根据2016年国际骨髓瘤工作组的定义,57.7%患者携带HRCA;依据2018年mSMART 3.0的定义,DHMM(HRCA=2)和THMM(HRCA≥3)患者分别占14.3%和2.9%。 结论 更新了我国初诊MM患者的CA谱,发现基于CA的HR MM占初诊MM患者的比例近58%,并首次报道DHMM和THMM的发生率约为17%。
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Affiliation(s)
- R F Yuan
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xian 710032, China
| | - Y J Dong
- Department of Hematology, Peking University First Hospital, Beijing 100034, China
| | - C R Li
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - W R Huang
- Department of Hematology, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - L M Zhang
- Department of Hematology, The First Hospital of Jilin University, Changchun 130012, China
| | - Q Zhu
- Department of Hematology, Peking University First Hospital, Beijing 100034, China
| | - L Xu
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xian 710032, China
| | - Y J Xu
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Q Xu
- Department of Hematology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - G X Gao
- Department of Hematology, Xijing Hospital, Fourth Military Medical University, Xian 710032, China
| | - F Y Jin
- Department of Hematology, The First Hospital of Jilin University, Changchun 130012, China
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Weng RH, Wang LL, Xia Y, Li CR, Yang J. [A case of cytophagic histiocytic panniculitis]. Zhonghua Er Ke Za Zhi 2020; 58:53-55. [PMID: 31905478 DOI: 10.3760/cma.j.issn.0578-1310.2020.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- R H Weng
- Department of Rheumatology and Immunology, Shenzhen Children's Hospital, Shenzhen 518035, China
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Pang J, Li CR, Zhao R, Nie TY, Li GQ, Lu X, Hu XX, Wang XK, Yang XY, You XF. Simplified LC-MS/MS method for quantification of IG-105, a novel tubulin ligand, and its application to the pharmacokinetic study in rats at the anticancer effective dose. Pharmazie 2019; 74:79-82. [PMID: 30782255 DOI: 10.1691/ph.2019.8157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
IG-105, N-(2, 6-dimethoxypyridine-3-yl)-9-methylcarbazole-3-sulfonamide, a novel carbazole sulfonamide, shows a potent anticancer activity in a variety of human tumor cells in vitro and in vivo. In the present study, a rapid and convenient liquid chromatography/tandem mass spectrometry (LC-MS/MS) method was developed and applied to the pharmacokinetic study of IG-105 in rats. Chromatographic separation was accomplished on a C18 column using an isocratic mobile phase of acetonitrile-water-acetic acid (56:44:0.2, v/v/v). The ion transitions of IG-105 and combretastatin A4 (internal standard) in selected reaction monitoring mode were m/z 398→154 and m/z 317→286, respectively. The assay exhibited good linearity over the range of 2-512 ng/mL. Intra- and inter-day precisions were within 8.2 %, and the accuracies ranged from -6.0 to 3.7 %. The extraction recoveries were higher than 90 %, and the matrix effects were negligible. All quality control samples were stable at different storage conditions. The validated LC-MS/MS method was successfully applied to a preclinical pharmacokinetic study of IG-105 in rats after a single oral dose of 100, 250, or 1000 mg/kg which showed tumor growth inhibition activity. The absorption of IG-105 was proved to be rapid but saturated to a certain extent into the blood circulation, from where it was distributed and eliminated gradually.
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Luo Y, Huang YY, Jin Y, Li CR, Yang J. [Effect of miR-21 on the expression of interleukin-10 in B cell of patients with Henoch-Schonlein purpura]. Zhonghua Er Ke Za Zhi 2018; 56:939-944. [PMID: 30518009 DOI: 10.3760/cma.j.issn.0578-1310.2018.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of microRNAs (miR)-21 on the expression of interleukin (IL)-10 in B cell of patients with Henoch-Schonlein purpura (HSP). Methods: From March 2016 to January 2017, twenty-four children with HSP hospitalized in rheumatology and immunology department of Shenzhen Children's Hospital were enrolled into the study, including 12 males and 12 females. Patients were divided into purpura nephritis group (HSPN, 14 cases) and non-nephritis group (NHSPN, 10 cases). The age-matched 34 healthy children were included as the control group for prospective cohort study. The expression levels of IL-10 in peripheral blood B cells (CD19(+)), transitional B cells (CD19(+) CD24(hi)CD38(hi)) and naïve B cells (CD19(+)CD24(int)CD38(int)) from patients with HSP and healthy children were detected by flow cytometry (FCM). Expression of microRNAs related to IL-10 in B cells were quantitated by real-time PCR, including miR-21-5p, miR-106a-5p, miR-98-3p, miR-142-3p, miR-142-5p, miR-98-5p, miR-155-5p and miR-let7b-5p. Agomir negative control-FAM and agomir-21-5p-FAM were transfected into B cells from patients with HSP. The uptake of miRNA by B cells was observed by laser scanning confocal microscope and FCM, and the expression of IL-10 was detected by FCM after transfection. For quantitative data of normal distribution, t test was used for two samples comparison and multiple comparisons among three groups were conducted by ANOVA. Spearman test was used for correlation analysis. Results: (1) The CD19(+) B cells and its two populations at different differentiation stages all could express IL-10. The expression levels of IL-10 in three B cell populations in patients were significantly lower than those in healthy controls (1.4±0.2 vs. 2.4±0.3, t=3.501, P<0.01; 1.2±0.2 vs. 2.2±0.3, t=2.688, P<0.05; 1.6±0.3 vs. 2.7±0.4, t=2.498, P<0.05). Compared with healthy control and NHSPN groups, the expression of IL-10 in CD19(+) B cells from patients within HSPN group was the lowest, and the difference was statistically significant (1.1±0.2 vs. 2.4±0.3, 1.8±0.3, t=4.006, 2.362, P<0.001, P<0.05). (2) The expression of miR-21-5p in B cell in patients with HSPN was lower than that in healthy control group (1.2±0.9 vs. 3.5±2.8, t=2.962, P<0.01). There was no significant change in the other microRNAs. (3) The expression of IL-10 was positively correlated with the expression of miR-21-5p in the B cells of patients with HSP (r=0.778, P<0.001). (4) The expression of IL-10 in B cells of miR-21-5p group was significantly higher than that in negative control group (2.7±0.2 vs. 1.6±0.3, t=3.091, P<0.05). Conclusion: The insufficient expression of miR-21-5p in peripheral blood B cells of patients with HSP is one of the reasons for the reduction of IL-10 expression in B cells.
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Affiliation(s)
- Y Luo
- Rheumatology & Immunology Department of Shenzhen Children's Hospital, Shenzhen 518038, China
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Mao P, Li CR, Zhang SZ, Zhang Y, Liu BT, Fan BF. Transcriptomic differential lncRNA expression is involved in neuropathic pain in rat dorsal root ganglion after spared sciatic nerve injury. ACTA ACUST UNITED AC 2018; 51:e7113. [PMID: 30066726 PMCID: PMC6065813 DOI: 10.1590/1414-431x20187113] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 09/10/2017] [Accepted: 06/11/2018] [Indexed: 12/22/2022]
Abstract
Dorsal root ganglia (DRG) neurons regenerate spontaneously after traumatic or surgical injury. Long noncoding RNAs (lncRNAs) are involved in various biological regulation processes. Conditions of lncRNAs in DRG neuron injury deserve to be further investigated. Transcriptomic analysis was performed by high-throughput Illumina HiSeq2500 sequencing to profile the differential genes in L4–L6 DRGs following rat sciatic nerve tying. A total of 1,228 genes were up-regulated and 1,415 down-regulated. By comparing to rat lncRNA database, 86 known and 26 novel lncRNA genes were found to be differential. The 86 known lncRNA genes modulated 866 target genes subject to gene ontology (GO) and KEGG enrichment analysis. The genes involved in the neurotransmitter status of neurons were downregulated and those involved in a neuronal regeneration were upregulated. Known lncRNA gene rno-Cntnap2 was downregulated. There were 13 credible GO terms for the rno-Cntnap2 gene, which had a putative function in cell component of voltage-gated potassium channel complex on the cell surface for neurites. In 26 novel lncRNA genes, 4 were related to 21 mRNA genes. A novel lncRNA gene AC111653.1 improved rno-Hypm synthesizing huntingtin during sciatic nerve regeneration. Real time qPCR results attested the down-regulation of rno-Cntnap lncRNA gene and the upregulation of AC111653.1 lncRNA gene. A total of 26 novel lncRNAs were found. Known lncRNA gene rno-Cntnap2 and novel lncRNA AC111653.1 were involved in neuropathic pain of DRGs after spared sciatic nerve injury. They contributed to peripheral nerve regeneration via the putative mechanisms.
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Affiliation(s)
- P Mao
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
| | - C R Li
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
| | - S Z Zhang
- State Key Laboratory of Toxicology and Medical Countermeasures, Department of Biochemical Pharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
| | - Y Zhang
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
| | - B T Liu
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
| | - B F Fan
- Department of Pain Medicine, China-Japan Friendship Hospital, Beijing, China
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He TY, Xia Y, Li CG, Li CR, Qi ZX, Yang J. [X-linked immunodeficiency with magnesium defect, Epstein-Barr virus infection, and neoplasia: report of a family and literature review]. Zhonghua Er Ke Za Zhi 2018; 56:48-52. [PMID: 29342998 DOI: 10.3760/cma.j.issn.0578-1310.2018.01.013] [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 investigate the clinical features and genetic characteristics of cases with X-linked immunodeficiency with magnesium defect, Epstein-Barr virus (EBV) infection, and neoplasia (XMEN). Methods: Characteristics of clinical material, immunological data and gene mutation of two cases with XMEN in the same family in China were retrospectively analyzed. The related reports literature were searched by using search terms'MAGT1 gene'or'XMEN'. Results: The proband, a 2-year-eight-month old boy, was admitted due to 'Urine with deepened color for two days and yellow stained skin for one day'. He had suffered from recurrent upper respiratory tract infection and sinusitis previously. Hemoglobin level was 38 g/L. The absolute count of reticulocytes was 223.2×10(9)/L. Urobilinogen level was 38 μmol/L (3-16 μmol/L). Coomb's test was positive. Both total (77.2 μmol/L) and indirect bilirubin (66 μmol/L) levels were elevated. There was an inverted CD4(+)/CD8(+)T cell ratio (0.89). The gene sequencing results showed MAGT1 gene c.472delG, p.D158Mfs*6 mutation. His 1-year-6-month old brother, was also identified to have MAGT1 gene c.472delG, p.D158Mfs*6 mutation.The younger brother mainly suffered from recurrent upper respiratory tract infection, accompanied by an inverted CD4(+)/CD8(+)T cell ratio (0.45), an elevated ratio and number of total B cells (45.7%). A total of 7 reports were retrieved including 11 male cases caused by MAGT1 gene mutation. These 11 cases were characterized by EBV viremia (11 cases), recurrent upper respiratory tract infection, otitis media or sinusitis (10 cases), secondary neoplasia diseases (8 cases), reduction of CD4(+)/CD8(+) T cell ratio (7 cases),and autoimmune thrombocytopenia or hemolytic anemia (2 cases). Conclusion: XMEN often manifests as male onset, recurrent upper respiratory tract infection, otitis media or sinusitis, EBV viremia, lymphoproliferative disease or lymphoma, autoimmune diseases and reduction of CD4(+)/CD8 (+)T cell ratio. NKG2D expression in NK cells is significantly reduced, and gene sequencing analysis shows a pathogenic mutation in MAGT1 gene.
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Affiliation(s)
- T Y He
- Department of Rheumatology and Immunology, Shenzhen Children's Hospital, Shenzhen 518038, China
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Chen Q, Bai J, Li CR, Zhang WF. [Changes of HbCO in the Blood of Rats with Different CO Concentration and Inhalation Time]. Fa Yi Xue Za Zhi 2017; 32:410-412. [PMID: 29205964 DOI: 10.3969/j.issn.1004-5619.2016.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Indexed: 11/18/2022]
Abstract
OBJECTIVES To explore the change rules of behavioral characteristics, survival time and saturation of carboxyhemoglobin (HbCO) in different CO concentration to provide experimental basis for the cases of CO poisoning death in forensic practice. METHODS Total 160 SD rats were randomly divided into four groups. CO with the concentration of 1 250 mg/m³, 3 750 mg/m³, 6 250 mg/m³ were continuously and respectively replenished in a self-made toxicant exposure equipment until rats died from poisoning. In different CO concentration, the behavioral characteristics and survival time of poisoning rats were observed and recorded. The saturation of HbCO in heart blood was detected by spectrophotometric method. Organs such as brain, heart, lung and liver, and heart blood were obtained via autopsy and histopathological observation was performed. RESULTS The behavioral characteristics of CO poisoning rats were limp and slow response. There were a gradual decrease of survival time and an increase of HbCO saturation in rats with the increase of CO concentration. Three rats in CO concentration of 1 250 mg/m³ group showed lower saturations of HbCO than the lethal dose and this situation hasn't been found in other groups. CONCLUSIONS The animal model of CO poisoning established under different CO concentration has the advantages such as simplicity and good repeatability, which lays a foundation to the further study for CO and other inhaled toxic gas in the research of forensic sciences.
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Affiliation(s)
- Q Chen
- Forensic Medical Examination Center of Beijing Public Security Bureau, Beijing 100192, China
| | - J Bai
- Forensic Medical Examination Center of Beijing Public Security Bureau, Beijing 100192, China
| | - C R Li
- Forensic Medical Examination Center of Beijing Public Security Bureau, Beijing 100192, China
| | - W F Zhang
- Forensic Medical Examination Center of Beijing Public Security Bureau, Beijing 100192, China
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16
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He TY, Li CR, Xia Y, Liang FF, Luo Y, Yang J. [Ras-associated autoimmune leukoproliferative disorder: a report of 2 cases and literature review]. Zhonghua Er Ke Za Zhi 2017; 55:853-857. [PMID: 29141318 DOI: 10.3760/cma.j.issn.0578-1310.2017.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To investigate the clinical features and genetic characteristics of cases with Ras-associated autoimmune leukoproliferative disorder(RALD). Method: Characteristics of clinical data and gene mutation of the first two cases in China with RALD were retrospectively analyzed. The related literature was searched by using search terms "NRAS" , "KRAS" or "RALD" . Result: Case1, a seven-year-seven-month old girl, was admitted due to "thrombocytopenia and splenomegaly for three years" . Palpation showed enlargement of submandibular lymph nodes and hepatosplenomegaly.The platelet count fluctuated between 15×10(9)/L and 60×10(9)/L. Hemoglobin was as 57 g/L and Coomb's test was positive.Lung computed tomography revealed interstitial lung disease, bilateral pleural effusion, pericardial effusion, myocardial injury and ascites. Case2, a seven-year-five-month old girl, was admitted due to "recurrent thrombocytopenia for seven years, intermittent eyelid and abdominal swelling for three years" . Palpation showed enlargement of cervical and right inguinal lymph nodes, and hepatosplenomegaly.The number of platelet and monocyte were 9×10(9)/L and 5.46×10(9)/L, respectively. Bone marrow smear revealed an increase in the proportion of primitive immature cells (0.09 to 0.11). Lung computed tomography revealed interstitial lung disease, pericardial effusion, cardiac enlargement and pulmonary hypertension. The gene sequencing results showed KRAS gene c.38G> A somatic mutation in case1, and p.G12D and NRAS gene c.38G> A, p.G13D somatic mutation in case2. A total of 8 reports were retrieved including 23 cases caused by NRAS(10 cases) or KRAS(13 cases) gene somatic mutation. All the 23 cases showed hypergammaglobulinemia, splenomegaly, B cells hyperplasia or mononucleosis. Conclusion: RALD often manifests as hepatosplenomegaly,lymphoproliferation, autoimmune hematocytopenia, B cells hyperplasia or mononucleosis, hypergammaglobulinemia. Gene sequencing analysis can help diagnose the disease.
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Affiliation(s)
- T Y He
- Department of Rheumatology and Immunology, Shenzhen Children's Hospital, Shenzhen 518038, China
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Ma GM, Jiang J, Li CR, Song HT, Luo YT, Wang HB. Pd/Ag coated fiber Bragg grating sensor for hydrogen monitoring in power transformers. Rev Sci Instrum 2015; 86:045003. [PMID: 25933889 DOI: 10.1063/1.4918802] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Compared with conventional DGA (dissolved gas analysis) method for on-line monitoring of power transformers, FBG (fiber Bragg grating) hydrogen sensor represents marked advantages over immunity to electromagnetic field, time-saving, and convenience to defect location. Thus, a novel FBG hydrogen sensor based on Pd/Ag (Palladium/Silver) along with polyimide composite film to measure dissolved hydrogen concentration in large power transformers is proposed in this article. With the help of Pd/Ag composite coating, the enhanced performance on mechanical strength and sensitivity is demonstrated, moreover, the response time and sensitivity influenced by oil temperature are solved by correction lines. Sensitivity measurement and temperature calibration of the specific hydrogen sensor have been done respectively in the lab. And experiment results show a high sensitivity of 0.055 pm/(μl/l) with instant response time about 0.4 h under the typical operating temperature of power transformers, which proves a potential utilization inside power transformers to monitor the health status by detecting the dissolved hydrogen concentration.
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Affiliation(s)
- G M Ma
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, People's Republic of China
| | - J Jiang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, People's Republic of China
| | - C R Li
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, People's Republic of China
| | - H T Song
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, People's Republic of China
| | - Y T Luo
- Electric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, People's Republic of China
| | - H B Wang
- Electric Power Research Institute of Guangdong Power Grid Co., Ltd., Guangzhou 510080, People's Republic of China
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Zhong ZX, Li B, Li CR, Zhang QF, Liu ZD, Zhang PF, Gu XF, Luo H, Li MJ, Luo HS, Ye GH, Wen FL. Role of chemokines in promoting instability of coronary atherosclerotic plaques and the underlying molecular mechanism. ACTA ACUST UNITED AC 2014; 48:161-6. [PMID: 25424368 PMCID: PMC4321222 DOI: 10.1590/1414-431x20144195] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 07/10/2014] [Accepted: 09/22/2014] [Indexed: 02/01/2023]
Abstract
Our aim was to investigate the role of chemokines in promoting instability of
coronary atherosclerotic plaques and the underlying molecular mechanism. Coronary
angiography and intravascular ultrasound (IVUS) were performed in 60 stable angina
pectoris (SAP) patients and 60 unstable angina pectoris (UAP) patients. The
chemotactic activity of monocytes in the 2 groups of patients was examined in
Transwell chambers. High-sensitivity C-reactive protein (hs-CRP), monocyte
chemoattractant protein-1 (MCP-1), regulated on activation in normal T-cell expressed
and secreted (RANTES), and fractalkine in serum were examined with ELISA kits, and
expression of MCP-1, RANTES, and fractalkine mRNA was examined with real-time PCR. In
the SAP group, 92 plaques were detected with IVUS. In the UAP group, 96 plaques were
detected with IVUS. The plaques in the UAP group were mainly lipid 51.04% (49/96) and
the plaques in the SAP group were mainly fibrous 52.17% (48/92). Compared with the
SAP group, the plaque burden and vascular remodeling index in the UAP group were
significantly greater than in the SAP group (P<0.01). Chemotactic activity and the
number of mobile monocytes in the UAP group were significantly greater than in the
SAP group (P<0.01). Concentrations of hs-CRP, MCP-1, RANTES, and fractalkine in
the serum of the UAP group were significantly higher than in the serum of the SAP
group (P<0.05 or P<0.01), and expression of MCP-1, RANTES, and fractalkine mRNA
was significantly higher than in the SAP group (P<0.05). MCP-1, RANTES, and
fractalkine probably promote instability of coronary atherosclerotic plaque.
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Affiliation(s)
- Z X Zhong
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - B Li
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - C R Li
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - Q F Zhang
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - Z D Liu
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - P F Zhang
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - X F Gu
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - H Luo
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - M J Li
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - H S Luo
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - G H Ye
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
| | - F L Wen
- Department of Cardiology, Meizhou Hospital Affiliated to Zhongshan University, Meizhou, Guangdong, China
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Li ZL, Guan HH, Xiao XM, Hui Y, Jia WX, Yu RX, Chen H, Li CR. Germline mutation analysis in the CYLD gene in Chinese patients with multiple trichoepitheliomas. Genet Mol Res 2014; 13:9650-5. [PMID: 25501176 DOI: 10.4238/2014.november.14.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Trichoepithelioma is a benign neoplasm that primarily shows follicular germinative differentiation. Classic trichoepithelioma typically presents as a skin-colored papule or nodule on the face or upper trunk; lesions have a predilection for the nose. Trichoepithelioma can be sporadic or familial and solitary or multiple. Most previously reported multiple trichoepithelioma cases are familial, and germline CYLD mutations could be detected in some patients. We performed mutational analysis of the germline CYLD gene in 8 Chinese multiple trichoepitheliomas patients, 6 of which were sporadic cases. A heterozygous missense mutation (c.1112C>A) in the 9th exon of the CYLD gene was detected in some mother-daughter patients. However, the germline CYLD mutation could not be detected in the 6 non-familial cases. The results suggest that the pathogenesis of sporadic multiple trichoepitheliomas may differ from that of familial cases. Our findings also further confirmed the genetic heterogeneity of multiple trichoepitheliomas.
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Affiliation(s)
- Z L Li
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - H H Guan
- Department of Dermatology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, China
| | - X M Xiao
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - Y Hui
- Department of Dermatology, Jinling Hospital, Nanjing University School of Medicine, Nanjing, Jiangsu Province, China
| | - W X Jia
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - R X Yu
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - H Chen
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
| | - C R Li
- Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing, China
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Jiang J, Ma GM, Luo DP, Li CR, Li QM, Wang W. A 65-kV insulated gate bipolar transistor switch applied in damped AC voltages partial discharge detection system. Rev Sci Instrum 2014; 85:024706. [PMID: 24593382 DOI: 10.1063/1.4866654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Damped AC voltages detection system (DAC) is a productive way to detect the faults in power cables. To solve the problems of large volume, complicated structure and electromagnetic interference in existing switches, this paper developed a compact solid state switch based on electromagnetic trigger, which is suitable for DAC test system. Synchronous electromagnetic trigger of 32 Insulated Gate Bipolar Transistors (IGBTs) in series was realized by the topological structure of single line based on pulse width modulation control technology. In this way, external extension was easily achieved. Electromagnetic trigger and resistor-capacitor-diode snubber circuit were optimized to reduce the switch turn-on time and circular layout. Epoxy encapsulating was chosen to enhance the level of partial discharge initial voltage (PDIV). The combination of synchronous trigger and power supply is proposed to reduce the switch volume. Moreover, we have overcome the drawback of the electromagnetic interference and improved the detection sensitivity of DAC by using capacitor storage energy to maintain IGBT gate driving voltage. The experimental results demonstrated that the solid-state switch, with compact size, whose turn-on time was less than 400 ns and PDIV was more than 65 kV, was able to meet the actual demands of 35 kV DAC test system.
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Affiliation(s)
- J Jiang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, People's Republic of China
| | - G M Ma
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, People's Republic of China
| | - D P Luo
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, People's Republic of China
| | - C R Li
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, People's Republic of China
| | - Q M Li
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, People's Republic of China
| | - W Wang
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206, People's Republic of China
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Li CR, Liang DD, Xu RF, Li H, Zhang YP, Qin RY, Li L, Wei PC, Yang JB. Overexpression of an alternative oxidase gene, OsAOX1a, improves cold tolerance in Oryza sativa L. Genet Mol Res 2013; 12:5424-32. [PMID: 24301915 DOI: 10.4238/2013.november.11.4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [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
Low temperature is a major environmental stress in rice cultivating and production. The alternative oxidase 1 (AOX1) gene is potentially important for genetic engineering to increase cold adaptation. However, previous studies related to this effect have mostly focused on the dicot plants Arabidopsis and tobacco, whereas functional research on rice is limited. In this study, we cloned a rice predominant cold-response AOX1 gene, OsAOX1a. Transgenic rice plants with overexpression of OsAOX1a were obtained. We found that OsAOX1a overexpression could strongly enhance the cold growth of seedlings, especially with respect to root extension. However, growth between transgenic and control plants did not differ under normal conditions. Furthermore, the lipid peroxidation and ion leakage rate were determined after cold treatment in transgenic plants. Both factors were reduced by OsAOX1a overexpression, which revealed that OsAOX1a could reduce oxidative damage under cold stress. Taken together, our results suggested that overexpressing OsAOX1a could improve growth performance of rice under cold stress, which might be closely related to the reduction of reactive oxygen species generation and oxidative damage.
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Affiliation(s)
- C R Li
- College of Life Sciences, Anhui University, Hefei, China
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He PP, He CD, Cui Y, Yang S, Xu HH, Li M, Yuan WT, Gao M, Liang YH, Li CR, Xu SJ, Chen JJ, Chen HD, Huang W, Zhang XJ. Refined localization of dyschromatosis symmetrica hereditaria gene to a 9.4-cM region at 1q21-22 and a literature review of 136 cases reported in China. Br J Dermatol 2004; 150:633-9. [PMID: 15099357 DOI: 10.1111/j.0007-0963.2004.05861.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Dyschromatosis symmetrica hereditaria (DSH) is an autosomal dominant pigmentary genodermatosis characterized by hyperpigmented and hypopigmented macules on the extremities, which has recently been mapped to an 11.6-cM interval on chromosome 1q11-21. So far, most cases of DSH have been reported in Japan and dermatologists around the world might think this disorder mainly occurs in Japan. In fact, there are 17 DSH families including 136 cases reported in China since 1980, but most of them are described in Chinese. OBJECTIVES To refine the previously mapped region that facilitates the identification of the DSH gene and to delineate the clinical and genetic features of Chinese DSH cases by a literature review of 136 cases reported in China. METHODS We performed genotyping and linkage analysis using polymorphic microsatellite markers at 1q11-22 in two Chinese DSH families, and reviewed all of the DSH cases reported in China since 1980. RESULTS A cumulative maximum two-point lod score of 3.68 was produced with marker D1S506 at a recombination frequency of theta = 0.00 in these two families. Haplotype analysis refined the DSH locus to a 9.4-cM interval flanked by D1S2343 and D1S2635. The genetic and clinical features of Chinese cases with DSH were summarized. In some Chinese cases, hyperpigmented and hypopigmented macules were scattered on the neck and chest, but among Japanese patients there were no similar skin lesions to be reported on these sites. CONCLUSIONS This study confirms linkage of DSH to a previously mapped region and refines the DSH gene to a 9.4-cM interval at 1q21-22. Likewise, the literature review indicates that DSH is not an uncommon disorder in China and the differences in the distribution of skin lesions could be related to race and environment.
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Affiliation(s)
- P P He
- Institute of Dermatology, No. 1 Hospital, Anhui Medical University, 69 Meishan road, Hefei, 230032, Anhui, China
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24
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Zhang XJ, Song YX, Zhang XQ, Yang S, Li M, Li CR, Yang CJ, Yang J. A new glycine substitution mutation in the COL7A1 gene in a Chinese family with dominant dystrophic epidermolysis bullosa. Clin Exp Dermatol 2003; 28:437-9. [PMID: 12823310 DOI: 10.1046/j.1365-2230.2003.01317.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Dystrophic epidermolysis bullosa (DEB) is caused by mutations in the COL7A1 gene encoding type VII collagen, the major component of anchoring fibrils. The characteristic genetic lesion in dominant DEB (DDEB) is a glycine substitution in the collagenous domain of the protein. In this study, we identified a Chinese family with a four-generation pedigree of DDEB, in whom a novel glycine substitution mutation in COL7A1 was demonstrated. A heterozygous nucleotide G-->A transition at position 6208 in exon 74 of COL7A1 was detected, which resulted in a glycine to arginine substitution (G2070R) in the triple-helical domain of type VII collagen. This substitution was not found in 110 unrelated normal alleles. This report emphasizes the predominance of glycine substitution mutations in DDEB and contributes to the expanding database on COL7A1 mutations.
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Affiliation(s)
- X J Zhang
- Institute of Dermatology, Anhui Medical University, Hefei, Anhui, People's Republic of China.
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25
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Yi QJ, Li CR, Yang XQ. Effect of intravenous immunoglobulin on inhibiting peripheral blood lymphocyte apoptosis in acute Kawasaki disease. Acta Paediatr 2001; 90:623-7. [PMID: 11440093] [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: 02/20/2023]
Abstract
UNLABELLED This study aimed to explore the therapeutic mechanism of intravenous immunoglobulin (IVIG) for Kawasaki disease (KD). Peripheral blood lymphocytes (PBLs) obtained from 26 children with KD and 20 age-matched healthy children were stimulated with anti-CD3 monoclonal antibody (mAb), and the percentage of apoptotic cells and DNA fragmentation were assayed at 0, 12, 24, 48 and 72 h in vitro. The patients were divided into two groups: one treated with aspirin combined with IVIG (n = 16) and one treated with aspirin alone (n = 10). PBLs were stimulated by phytohaemagglutinin to evaluate the lymphocyte proliferative response. Compared with normal controls, the apoptotic cell percentage and the DNA fragmentation were markedly decreased (p < 0.001) and delayed in PBLs from KD patients. After IVIG treatment, the decreased percentage of apoptotic cell and delayed DNA fragmentation were restored to the state of the normal controls, accompanied by a fast clinical remission compared with the aspirin-alone group. The lymphocyte proliferative response was also decreased 3-5 d after IVIG therapy (p < 0.001). CONCLUSION The results suggest that decreased PBL apoptosis may be involved in the pathogenesis of KD. The therapeutic mechanism of IVIG in KD may be partially due to the reversal of the inhibited lymphocyte apoptosis, and may have implications for other autoimmune diseases with inefficient lymphocyte apoptosis.
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Affiliation(s)
- Q J Yi
- Children's Hospital, Chongqing University of Medical Sciences, PR China.
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26
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Cheng Q, Li CR, Xing YF. [Synthesis and antifungal activities of 1-(1-substitutedphenyl)-2-(1H-1,2,4-triazol or benztriazol-1-yl)-O-(substitutedbenzyl) ethanoximes]. Yao Xue Xue Bao 2001; 32:49-55. [PMID: 11243218] [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: 02/19/2023]
Abstract
Twenty-nine 1-(1-substituted phenyl)-2-(1H-1,2,4-triazol or benztriazol-1-yl)-O-(substituted benzyl) ethanoximes have been synthesized for the first time. Results of preliminary biological test in vitro show that most compounds have antifungal activities against most fungi tested. The antifungal activities of compounds T1, T4, T6, T11, T12, B1, B3, B4 and B6 are better than or comparable to the activities of the lead compound oxiconazole against some fungi.
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Affiliation(s)
- Q Cheng
- Department of Applied Chemistry, Beijing Agricultural University, Beijing 100094
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27
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Cheng H, Liang AX, Elly A, Ling ZQ, Li CR. [Epidemiologic survey of dental fluorosis and caries in school students in Wensu county in Xinjiang]. Shanghai Kou Qiang Yi Xue 2000; 9:232-4. [PMID: 15014770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
OBJECTIVE To assess the relationship between the dental fluorosis and caries,and their prevalence features in school students in Wensu country in Xinjiang. METHODS The study groups consisted of 1527 Weuer and Han students at the age of 6 to 16. Dental fluorosis and caries disease were assessed strictly by Dean's Classification Standard and WHO "Oral Health Surveys Basic Methods" (the 3rd ed). The concentration of fluorine in water and urine was measured by using selective electrode. RESULTS The prevalence and index of dental fluorosis in Weuer and Han students were 73.70%, 64.67%, 1.647, 1.303,respectively. The prevalence of dental caries and DMFT were 61.19%, 42.66%, 1.648, 1.023 respectively. The corresponding values were 51.94%, 52.99%, 1.305, 1.449 for students of fluorosis group and non-fluorosis group, respectively. The fluorine degree of water was 2-5mg/L,the average value of fluorine in urine was 3.64 mg/L in Han students, and 5.28 mg/L in Weuer students. CONCLUSION The prevalence of dental caries didn't decrease, even though the grevalence of fluorosis was high in Weuer country. The prevalence of fluorosis dental caries in Weuer students were significantly higher than those in Han students. It showed no significant different between the group of fluorosis and the group of non-fluorosis in the prevalence of dental caries, perhaps due to the high fluorine intake, poor oral hygiene, and unqualified medical service.
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Affiliation(s)
- H Cheng
- Department of Dentistry, Wensu People's Hospital, Xinjiang 843100, China
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28
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Abstract
Patients with putamen or cortical lesions participated in a first- and third-person movement imagery task, each primarily engaging kinesthetic and visual imagery. The subjects were instructed to imagine themselves (first-person task) and a third party (third-person task) performing a sequence of three movements and to choose from a set of four photos the end posture resulting from the movements. The results demonstrated that, limb-specific imagery was impaired in both putamen and cortical lesions, in the first-, but not third-person task. Moreover, more than half of the errors made by cortical patients were with respect to the first movement, a finding consistent with motor cortex involvement in memory processes. Taken overall, the results provide evidence that the basal ganglia as well as cortical structures play an important role in the neural network mediating motor imagery.
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Affiliation(s)
- C R Li
- Medical Research Center and Department of Psychiatry, Chang Gung Memorial Hospital, 5-Fu-Hsing Street, Kwei-shan, 333, Tao-Yuan, Taiwan.
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29
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McLaughlin-Taylor E, Pande H, Forman SJ, Tanamachi B, Li CR, Zaia JA, Greenberg PD, Riddell SR. Identification of the major late human cytomegalovirus matrix protein pp65 as a target antigen for CD8+ virus-specific cytotoxic T lymphocytes. J Med Virol 1994; 43:103-10. [PMID: 8083644 DOI: 10.1002/jmv.1890430119] [Citation(s) in RCA: 266] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Primary cytomegalovirus (CMV) infection and reactivation of persistent CMV are associated with significant morbidity and mortality in immunocompromised individuals. Although recovery from CMV disease is correlated with the development of CMV-specific cytotoxic T lymphocytes (CTL), the major viral target antigens to which the response is directed are ill-defined, though they may comprise viral structural elements. We now identify the CMV matrix protein pp65 as a significant target antigen for CD8+ class I major histocompatibility complex (MHC)-restricted CMV-specific CTL derived from the peripheral blood of four of five latently infected individuals. CMV-specific CTL recognition of pp65 on target cells occurs prior to the onset of viral gene expression and persists throughout the duration of the replicative cycle. Recognition in the absence of viral gene expression suggests that abundant viral protein enters the normal trafficking pathway upon viral penetration and is readily made available to MHC molecules for presentation at the cell surface. Thus pp65 specific CTL may represent an important effector population for early control and limitation of CMV infection and disease. The observation that CMV-specific CTL can be induced in vitro using peptide fragments derived from pp65 supports the future use and manipulation of this and similar effector populations in a clinical setting.
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Affiliation(s)
- E McLaughlin-Taylor
- Department of Hematology and Bone Marrow Transplantation, City of Hope National Medical Center, Duarte, CA 91010
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30
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Li CR, Greenberg PD, Gilbert MJ, Goodrich JM, Riddell SR. Recovery of HLA-restricted cytomegalovirus (CMV)-specific T-cell responses after allogeneic bone marrow transplant: correlation with CMV disease and effect of ganciclovir prophylaxis. Blood 1994; 83:1971-9. [PMID: 8142663] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Protection from cytomegalovirus (CMV) disease in immunocompromised hosts has been shown to correlate with recovery of the host virus-specific CD8+ T-cell response. The administration of ganciclovir to immunosuppressed transplant recipients as antiviral prophylaxis has reduced the early risk of CMV disease, but late disease is observed with increased frequency, suggesting that recovery of the CMV-specific T-cell responses necessary for protective immunity may be delayed in these patients. Therefore, we evaluated reconstitution of CMV-specific T-cell responses in 47 bone marrow transplant (BMT) recipients entered on a randomized placebo-controlled study of ganciclovir. The study drug was initiated at a mean of 24 days after BMT. At day 30 to 40, a minority of patients had recovery of T-cell immunity to CMV and the frequency of reconstitution was equivalent in patients randomized to ganciclovir or placebo. The failure of ganciclovir to effect early reconstitution may reflect the short duration of treatment. Early recovery was associated with the infusion of BM from a CMV seropositive donor (P = .07 for CD8+ cytotoxic T cell (CTL), P = .04 for CD4+ Th). Between day 40 and day 90, recovery of deficient CD8+ and CD4+ CMV-specific T-cell responses occurred in the majority of individuals that received placebo, but in a minority of ganciclovir recipients. Two cases of late-onset CMV disease occurred in ganciclovir recipients. In all patients, the presence of a CTL response to CMV conferred protection from subsequent CMV disease (P = .005), and these protective CTL responses are shown to be specific for structural virion proteins similar to the responses in immunocompetent CMV seropositive individuals. These data confirm the importance of CMV-specific T-cell responses and suggest that a delay in recovery of these responses as a result of ganciclovir prophylaxis may contribute to the occurrence of late CMV disease.
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Affiliation(s)
- C R Li
- Fred Hutchinson Cancer Research Center, Department of Medicine, University of Washington, Seattle 98104
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31
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Ding XT, Yang XQ, Li CR, Shen J. Immunologic abnormalities in children with acute Kawasaki disease. Chin Med J (Engl) 1993; 106:688-92. [PMID: 8287706] [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: 01/29/2023] Open
Abstract
Spontaneous release of IgG, production of IgG, IgM and IgG subclasses induced by PWM in vitro, serum IgG, IgM, IgA and IgG subclasses were measured in 23 patients with acute Kawasaki disease (KD). The results showed that there was polyclonal B cell activation with significantly increased IgG1 and IgG3. As compared with 21 healthy controls, the mean activities of B cell growth factors (BCGFs), B cell differentiation factors (BCDFs) and interleukin 6 (IL-6) were significantly elevated. IL-6 activity was correlated with the production of IgG, IgG1, IgG3 and IgM, while BCGFs and BCDFs were also correlated with IgG1. The serum level of circulating tumor necrosis factor (TNF) determined in 16 patients with acute KD using double antibody ELISA was 1.86-8.83 micrograms/ml, but it was less than 1 microgram/L in normal controls. The clinical value of increased TNF in serum is discussed.
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Affiliation(s)
- X T Ding
- Research Institute of Pediatrics, Chongqing University of Medical Sciences
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32
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Gilbert MJ, Riddell SR, Li CR, Greenberg PD. Selective interference with class I major histocompatibility complex presentation of the major immediate-early protein following infection with human cytomegalovirus. J Virol 1993; 67:3461-9. [PMID: 8388509 PMCID: PMC237692 DOI: 10.1128/jvi.67.6.3461-3469.1993] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Responses of cytotoxic T-cells (Tc) to human cytomegalovirus (CMV) represent the predominant mechanism by which hosts resist CMV infection. The CMV major immediate-early protein (IE) is present throughout the virus replicative cycle. Studies were performed to determine whether Tc specific for IE effectively lyse CMV-infected targets and are thus capable of providing protective immunity against infection. After in vitro stimulation of peripheral blood mononuclear cells with CMV-infected autologous fibroblasts, Tc specific for IE were not readily detectable in CMV-reactive polyclonal Tc lines. However, after stimulation of peripheral blood mononuclear cells with cells selectively expressing IE, weak but detectable IE-specific Tc responses were observed. The frequency of IE-specific Tc clones derived from cultures stimulated with IE-expressing cells was 50 to 100 times lower than the frequency of Tc clones specific for other CMV proteins isolated from cultures stimulated with CMV-infected cells. All of the IE-specific Tc clones, which efficiently lysed targets selectively expressing IE, demonstrated minimal lysis of CMV-infected fibroblasts, despite abundant IE expression in these target cells. In contrast to these results with IE, other viral proteins were efficiently presented during all phases of CMV infection. These data suggest that CMV has evolved a unique mechanism for selectively limiting the presentation of the potentially immunogenic IE protein, which may preclude IE-specific Tc from providing protective immunity to CMV infection.
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Affiliation(s)
- M J Gilbert
- Fred Hutchinson Cancer Research Center, University of Washington, Seattle 98104
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33
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Riddell SR, Watanabe KS, Goodrich JM, Li CR, Agha ME, Greenberg PD. Restoration of viral immunity in immunodeficient humans by the adoptive transfer of T cell clones. Science 1992; 257:238-41. [PMID: 1352912 DOI: 10.1126/science.1352912] [Citation(s) in RCA: 987] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The adoptive transfer of antigen-specific T cells to establish immunity is an effective therapy for viral infections and tumors in animal models. The application of this approach to human disease would require the isolation and in vitro expansion of human antigen-specific T cells and evidence that such T cells persist and function in vivo after transfer. Cytomegalovirus-specific CD8+ cytotoxic T cell (CTL) clones could be isolated from bone marrow donors, propagated in vitro, and adoptively transferred to immunodeficient bone marrow transplant recipients. No toxicity developed and the clones provided persistent reconstitution of CD8+ cytomegalovirus-specific CTL responses.
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Affiliation(s)
- S R Riddell
- Fred Hutchinson Cancer Research Center, Seattle, WA 98104
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34
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Jiang LP, Yang XQ, Li CR, Zhang YW, Wang LJ, Shen J. Immunoglobulin G subclass deficiency in children with recurrent respiratory tract infections. Chin Med J (Engl) 1991; 104:119-23. [PMID: 1874010] [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: 12/29/2022] Open
Abstract
With monoclonal antibodies serum immunoglobulin G(IgG) subclasses were measured in seventy children aged 2 to 13 years with recurrent respiratory tract infections including upper respiratory tract infections, otitis media, sinusitis, asthmatic bronchitis and pneumonia. 211 healthy, aged-matched children served as control. IgG subclass deficiency was found in 19 out of the 70 patients (27.1%, single IgG1 deficiency in 7, IgG2 deficiency in 4, combined IgG1-IgG3 deficiency in 5, IgG1-IgG2-IgG3-IgG4 deficiency, IgG1-IgG2-IgG4 deficiency and IgG2-IgG4 deficiency each in 1). The incidence of IgG subclass deficiencies was in the sequence as follows: IgG1, 20%; IgG2, 10%; IgG3, 8.6% and IgG4, 4.3%. The results suggest that IgG subclass deficiency indicate a common disorder in children with recurrent respiratory tract infections.
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Affiliation(s)
- L P Jiang
- Children's Hospital, Chongqing University of Medical Sciences
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35
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Abstract
IgG subclass concentrations in sera of 17 patients with Kawasaki syndrome were determined. Significantly increased IgG1 (P less than 0.001) and IgG3 (P less than 0.001) were found in the patients compared with 22 age-matched healthy children, whereas IgG2 and IgG4 were normal or slightly decreased. IgG immune complexes were measured by protein A-enzyme-linked immunosorbent assay (ELISA) combined polyethylene glycol precipitations. Eight of 17 patients (47.1%) were found to have circulating immune complexes (CIC) values above the normal control range (geometric mean +2 SD). IgG subclass composition in CIC was analyzed. The subclasses in CIC were predominantly IgG1 and IgG3. Because the antibody responses to different antigens exhibit IgG subclass restriction, it would suggest that the change of serum and CIC IgG subclasses in Kawasaki syndrome may have relevance to the pathogenesis of the disease.
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Affiliation(s)
- C R Li
- Children's Hospital, Chongqing University of Medical Sciences, People's Republic of China
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36
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Li CR. [IgG subclasses in the serum and circulating immune complexes in patients with Kawasaki disease]. Zhonghua Yi Xue Za Zhi 1989; 69:578-81, 40. [PMID: 2620267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
IgG subclass levels in sera of 17 patients with Kawasaki disease were determined and a significant increase of IgG 1 (P less than 0.001) and IgG 3 (P less than 0.001) was found in the patients compared with 22 age-matched healthy children, while IgG 2 and IgG 4 were normal or slightly decreased. IgG immune complexes were measured by SPA-ELISA combined with PEG precipitations, and 8 out of 17 patients (47.1%) were found to have CIC values above the normal control range (geometric mean +2 SD). IgG subclass composition in CIC was analysed. The subclasses in CIC were predominantly in IgG 1 and IgG 3. Because the antibody responses to different antigens have IgG subclass restriction. These results suggest that the change of serum and CIC IgG subclasses in Kawasaki disease may be related to the pathogenesis of the disease.
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37
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Zhou BC, Li CR, Li XZ. [Ultrastructural study of polyarteritis]. Zhonghua Xin Xue Guan Bing Za Zhi 1987; 15:354-5, 15, 370. [PMID: 3449358] [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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38
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Li CR. [Testicular biopsy tissue in azoospermia]. Zhonghua Bing Li Xue Za Zhi 1987; 16:62-4. [PMID: 2957086] [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: 01/03/2023]
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39
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Li CR. [Controlled hypotensive anesthesia with sodium nitroprusside]. Zhonghua Hu Li Za Zhi 1986; 21:169-171. [PMID: 3638179] [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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40
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Li CR. [The main contents and characteristics of the third national population census]. Renkou Yanjiu 1982:2-5. [PMID: 12266133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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41
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Li CR. [Anesthesia in reconstruction of trachea and bronchus (author's transl)]. Zhonghua Wai Ke Za Zhi 1980; 18:470-2. [PMID: 7227104] [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: 01/24/2023]
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