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Deng NH, Chen XC, Quan SB. Unique method for removal of knotted lumbar epidural catheter: A case report. World J Clin Cases 2024; 12:1824-1829. [PMID: 38660084 PMCID: PMC11036471 DOI: 10.12998/wjcc.v12.i10.1824] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/03/2024] [Accepted: 03/04/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND Combined spinal-epidural (CSE) anesthesia is the preferred anesthesia method for cesarean delivery. The use of an epidural catheter is essential for administering additional drugs intraoperatively and managing postoperative pain. However, the insertion of epidural catheters is associated with various complications, such as total spinal anesthesia, symptoms indicative of spinal nerve root irritation, and challenges in epidural catheter removal. CASE SUMMARY We present a case report of a challenging epidural catheter removal due to knotting. The lumbar computed tomography scan results revealed that the catheter formed a tight knot in the epidural space. We used a novel extubation method and successfully removed the catheter. CONCLUSION The operator can use opposite forces to "spiral" apart the spinal joints by positioning the patient's body in a specific position. The findings indicate that, when combined with imaging examination results, this method is effective for the removal of epidural catheters.
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Affiliation(s)
- Nian-Hua Deng
- Anesthesia and Surgery Center, Dongguan Songshan Lake Central Hospital, Dongguan 523326, Guangdong Province, China
| | - Xiao-Cong Chen
- Anesthesia and Surgery Center, Dongguan Songshan Lake Central Hospital, Dongguan 523326, Guangdong Province, China
| | - Shou-Bo Quan
- Anesthesia and Surgery Center, Dongguan Songshan Lake Central Hospital, Dongguan 523326, Guangdong Province, China
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Zhou XY, Chen XC, Fraley GS, Zhang KY, Tian G, Bai SP, Ding XM, Wang JP, Lv L, Xuan Y, Zeng QF. Effects of different dietary vitamin D combinations during the grower phase and the feed restriction phase on growth performance and sternal morphology, mineralization, and related genes expression of bone metabolism in Pekin ducks. Poult Sci 2024; 103:103291. [PMID: 38043407 PMCID: PMC10711511 DOI: 10.1016/j.psj.2023.103291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/11/2023] [Accepted: 11/13/2023] [Indexed: 12/05/2023] Open
Abstract
Our study aimed to investigate the effects of different dietary vitamin D (VD) combinations during the grower (1-32 d of age) and feed restriction (33-52 d of age) phases on growth performance. We also evaluated sternal morphology, mineralization, and related genes expression of bone metabolism as well as absorption of calcium and phosphorous in duodenal mucosa and kidney in Pekin ducks. During the grower phase, we used 2 VD regimes (Group A: 3,160 IU/kg VD3; Group B: 400 IU/kg VD3 + 69 μg/kg 25-OH-D3). Each dietary treatment had 50 replicate pens of 10 ducks per pen. During the feed restriction phase, 30 replicate pens selected from Group A and Group B, repetitively, were redivided into 5 different dietary VD regimes to form a 2 × 5 experimental design. Each group consisted of 6 replicates, each with 10 ducks. During the feed restriction phase, we evaluated 5 different dietary VD combinations were as follows: T1: 2,000 IU/kg VD3 ; T2: 5,000 IU/kg VD3; T3: 3,620 IU/kg VD3 + 34.5 μg/kg 25-OH-D3; T4: 2,240 IU/kg VD3 + 69 μg/kg 25-OH-D3; T5: 1,800 IU/kg VD3 + 80 μg/kg 25-OH-D3). Results showed that Group B combinations with T5 had a better growth performance and breast meat deposition (P < 0.1). Regardless of 5 dietary VD regimes during the feed restriction phase, Group B significantly increased (P < 0.05) 52 d sternal depth and tended to increase (P < 0.1) 52 d sternal defatted weight, ash content, and phosphate (P) content of ducks. A significant interactive effect (P < 0.05) was observed on the mRNA abundance of DMP1 and Sost1 as well as RANKL/OPG in sternum and of VDR in duodenal mucosa of ducks at 52 d of age between dietary VD combinations during 2 phases. These results indicated that dietary VD regimes during the grower phase could affect the effectiveness of dietary VD regimes during the feed restriction phases; Dietary VD combinations of both phases could affect the genes expression of bone formation and the absorption as well as reabsorption of calcium and phosphorus in duodenum and kidney.
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Affiliation(s)
- X Y Zhou
- Institute of Animal Nutrition, Sichuan Agricultural University, and Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Ministry of Agriculture and Rural Affairs of Sichuan Province, Chengdu, Sichuan 611130, China
| | - X C Chen
- Institute of Animal Science, Chengdu Agricultural College, Chengdu, Sichuan 611130, China
| | - G S Fraley
- Animal Science Department, Purdue University, West Lafayette, IN 47907, USA
| | - K Y Zhang
- Institute of Animal Nutrition, Sichuan Agricultural University, and Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Ministry of Agriculture and Rural Affairs of Sichuan Province, Chengdu, Sichuan 611130, China
| | - G Tian
- Institute of Animal Nutrition, Sichuan Agricultural University, and Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Ministry of Agriculture and Rural Affairs of Sichuan Province, Chengdu, Sichuan 611130, China
| | - S P Bai
- Institute of Animal Nutrition, Sichuan Agricultural University, and Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Ministry of Agriculture and Rural Affairs of Sichuan Province, Chengdu, Sichuan 611130, China
| | - X M Ding
- Institute of Animal Nutrition, Sichuan Agricultural University, and Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Ministry of Agriculture and Rural Affairs of Sichuan Province, Chengdu, Sichuan 611130, China
| | - J P Wang
- Institute of Animal Nutrition, Sichuan Agricultural University, and Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Ministry of Agriculture and Rural Affairs of Sichuan Province, Chengdu, Sichuan 611130, China
| | - L Lv
- Institute of Animal Nutrition, Sichuan Agricultural University, and Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Ministry of Agriculture and Rural Affairs of Sichuan Province, Chengdu, Sichuan 611130, China
| | - Y Xuan
- Institute of Animal Nutrition, Sichuan Agricultural University, and Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Ministry of Agriculture and Rural Affairs of Sichuan Province, Chengdu, Sichuan 611130, China
| | - Q F Zeng
- Institute of Animal Nutrition, Sichuan Agricultural University, and Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Education, Ministry of Agriculture and Rural Affairs of Sichuan Province, Chengdu, Sichuan 611130, China.
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Shen ZY, Chen XC, Shan HR, Jia T, Gu WY, Wang F, Teng QL, Wang L, Wang CL, Shi YY, Zhang H, Miao YQ, Zhu TG, Ji CY, Ye JJ, Zhang MZ, Zhang XD, Wang L, Xu KL, Sang W. [Analysis of prognostic factors of extranodal NK/T-cell lymphoma treated with pegaspargase/L-asparaginase: a multicenter retrospective study]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:642-648. [PMID: 37803837 PMCID: PMC10520233 DOI: 10.3760/cma.j.issn.0253-2727.2023.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Indexed: 10/08/2023]
Abstract
Objective: To explore the prognostic factors of extracellular NK/T cell lymphoma (ENKTL) treated with pegaspargase/L-asparaginase. Methods: The clinical data of 656 ENKTL patients diagnosed at 11 medical centers in the Huaihai Lymphoma Working Group from March 2014 to April 2021 were retrospectively analyzed. The patients were randomly divided into two groups: a training set (460 cases) and a validation set (196 cases) at 7∶3, and the prognostic factors of the patients were analyzed. A prognostic scoring system was established, and the predictive performance of different models was compared. Results: Patients' median age was 46 (34, 57) years, with 456 males (69.5% ) and 561 nasal involvement (85.5% ). 203 patients (30.9% ) received a chemotherapy regimen based on L-asparaginase combined with anthracyclines, and the 5-year overall survival rate of patients treated with P-GEMOX regimen (pegaspargase+gemcitabine+oxaliplatin) was better than those treated with SMILE regimen (methotrexate+dexamethasone+cyclophosphamide+L-asparaginase+etoposide) (85.9% vs 63.8% ; P=0.004). The results of multivariate analysis showed that gender, CA stage, the Eastern Cooperative Oncology Group performance status (ECOG PS) score, HGB, and EB virus DNA were independent influencing factors for the prognosis of ENKTL patients (P<0.05). In this study, the predictive performance of the prognostic factors is superior to the international prognostic index, Korean prognostic index, and prognostic index of natural killer lymphoma. Conclusion: Gender, CA stage, ECOG PS score, HGB, and EB virus DNA are prognostic factors for ENKTL patients treated with pegaspargase/L-asparaginase.
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Affiliation(s)
- Z Y Shen
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei 230032, China
| | - X C Chen
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - H R Shan
- Department of Hematology, Shuyang Hospital of Traditional Chinese Medicine, Suqian 223600, China
| | - T Jia
- Department of Hematology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - W Y Gu
- Department of Hematology, the First People's Hospital of Changzhou, Changzhou 213003, China
| | - F Wang
- Department of Hematology, the First People's Hospital of Changzhou, Changzhou 213003, China
| | - Q L Teng
- Department of Hematology, Taian Central Hospital, Taian 271000, China
| | - L Wang
- Department of Hematology, Taian Central Hospital, Taian 271000, China
| | - C L Wang
- Department of Hematology, Huai'an First People's Hospital, Huaian 223000, China
| | - Y Y Shi
- Department of Hematology, Huai'an First People's Hospital, Huaian 223000, China
| | - H Zhang
- Department of Hematology, the Affiliated Hospital of Jining Medical University, Jining 272000, China
| | - Y Q Miao
- Department of Hematology, Yancheng First People's Hospital, Yancheng 224001, China
| | - T G Zhu
- Department of Hematology, the General Hospital of Wanbei Coal-Electric Group, Suzhou 234000, China
| | - C Y Ji
- Department of Hematology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - J J Ye
- Department of Hematology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - M Z Zhang
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - X D Zhang
- Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Wang
- Department of Hematology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - K L Xu
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
| | - W Sang
- Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221002, China
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Zhang H, Xiang W, Ji ST, Xiao YP, Chen XC, Li J, Ning Y, Gu WY. [Clinicopathological analysis of primary gastric (gastrointestinal)-type mucoglandular lesion of endometrium]. Zhonghua Bing Li Xue Za Zhi 2023; 52:586-591. [PMID: 37263923 DOI: 10.3760/cma.j.cn112151-20220905-00763] [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: 06/03/2023]
Abstract
Objective: To investigate the clinical and pathological features of primary gastric (gastrointestinal)-type mucoglandular lesions of the endometrium. Methods: Eight cases of primary gastric (gastrointestinal)-type mucoglandular lesions of endometrium diagnosed between 2014 to 2022 were retrieved from pathology archives of the Obstetrics and Gynecology Hospital Affiliated to Fudan University, Shanghai, China. The clinical history, pathological sections and follow-ups were analyzed. Results: The eight patients ranged in age from 35 to 67 years, with an average age of 55.5 years. Seven patients were examined for high-risk human papillary virus (HPV) before operation. Only one of them was positive for high-risk HPV52. No cervical mucinous lesions were found in any of the patients. Two cases were invasive gastric (gastrointestinal)-type adenocarcinoma, 2 cases were benign gastric (gastrointestinal)-type mucinous metaplasia, and the other 4 cases were atypical gastric (gastrointestinal)-type mucinous gland hyperplasia. Microscopically, tumor cells showed mucous epithelium with gastrointestinal differentiation. Immunophenotyping showed that MUC6 was diffusely or focally positive in 5 cases, CK20 and CDX2 were positive in 3 cases. And p16 was negative or focally positive in 5 cases and strongly positive in 1 case. ER was expressed in both benign and atypical lesions, and weakly positive or negative in the invasive adenocarcinoma. p53 showed mutant expression in one case and wild-type expression in the rest. HPV in situ hybridization was negative. Conclusions: Primary gastric (gastrointestinal)-type mucoglandular lesions of the endometrium show various forms of gastrointestinal differentiation, which are high-risk HPV independent. Morphology combined with immunohistochemistry is helpful for the diagnosis, which can only be made on exclusion of cervical gastrointestinal glandular lesion, gastrointestinal metastatic carcinoma and the mucinous subtype of endometrioid carcinoma.
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Affiliation(s)
- H Zhang
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - W Xiang
- Department of Pathology, Punan hospital, Pudong New Area, Shanghai 200125, China
| | - S T Ji
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Y P Xiao
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - X C Chen
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - J Li
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - Y Ning
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | - W Y Gu
- Department of Pathology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
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Ouyang TB, Chen H, Liu SQ, Chen XC, Yang XS, Hou M, Zhao ZY. Development of a removable three-dimensional magnetic probe system for measuring field null on the NanChang Spherical Tokamak. Rev Sci Instrum 2023; 94:013509. [PMID: 36725596 DOI: 10.1063/5.0125948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 12/27/2022] [Indexed: 06/18/2023]
Abstract
The field null configuration of a poloidal magnetic field is one of the critical conditions for achieving Ohmic breakdown during the initial discharge of a new tokamak. The issue of the Ohmic breakdown on the NanChang Spherical Tokamak (NCST) is still not solved satisfactorily although plasma currents of about 2 kA were found. Hence, a removable three-dimensional magnetic probe (RTMP) system consisting of 25 magnetic probes was designed, calibrated, and constructed on the NCST to evaluate the field null inside a vacuum vessel. After repeated tests, the RTMP system exhibited outstanding performance in terms of accuracy and stability with errors of about 1%. Meanwhile, the RTMP system successfully measured the toroidal field (TF) coil ripples at the magnetic axis. During experiments, the stray field arising from the TF coil implied a strong link between the flexible connection of the TF coil and the Ohmic breakdown on the NCST. After the field null was effectively modified by using a new flexible connection of the TF coil and controlling the induced current in the poloidal field coil, the NCST tokamak reproducibly obtained 20 kA plasma current with the limiter configuration during the plasma current flat-top phase.
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Affiliation(s)
- T B Ouyang
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - H Chen
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - S Q Liu
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - X C Chen
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - X S Yang
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - M Hou
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
| | - Z Y Zhao
- Jiangxi Province Key Laboratory of Fusion and Information Control, Department of Physics, Nanchang University, Nanchang 330031, China
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Zhao M, Chen XC, Pan WC, Liu X, Tan SL, Cui H, Zhao ZX. Meroterpenoids from the fungus Penicillium sclerotiorum GZU-XW03-2 and their anti-inflammatory activity. Phytochemistry 2022; 202:113307. [PMID: 35792159 DOI: 10.1016/j.phytochem.2022.113307] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 06/29/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
Seven undescribed meroterpenoids, peniscmeroterpenoids A - G, were isolated from the marine-derived fungus Penicillium sclerotiorum GZU-XW03-2. Their structures were established by the spectroscopic methods and the electronic circular dichroism (ECD) calculations. Peniscmeroterpenoid A possessed an unprecedented and highly oxidized 6/7/6/5/5 pentacyclic system, featuring a unique tetrahydrofuro [2,3-b]furan-2(3H)-one motif. Peniscmeroterpenoids B - E owned rare 6(D)/5(E) fused rings were not common in natural products, and peniscmeroterpenoid E is the first example of a berkeleyone analogue stripped of the methyl ester fragment. In bioassays, peniscmeroterpenoids A and D inhibited the production of nitric oxide (NO) in RAW264.7 cells with IC50 values of 26.60 ± 1.15 and 8.79 ± 1.22 μM. Moreover, peniscmeroterpenoid D significantly suppressed the production of pro-inflammatory mediators (COX-2, IL-1β and IL-6) and the protein expression of the enzyme iNOS.
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Affiliation(s)
- Min Zhao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
| | - Xiao-Cong Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Wen-Cong Pan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Xia Liu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Shao-Li Tan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Hui Cui
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
| | - Zhong-Xiang Zhao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
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Wu LW, Wang L, Wen ZL, Ma H, Ou QF, Wu C, Gao X, Shi L, Li HW, Xia F, Song S, Zhu ZQ, Liu HY, Chen XC, Zhang SL, Huang JY, Song YZ. [Screening and preliminary validation of biomarkers in sputum-negative pulmonary tuberculosis based on positron emission tomography/computed tomography and transcriptomics]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:567-572. [PMID: 35658381 DOI: 10.3760/cma.j.cn112147-20211207-00864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To screen and perform preliminary clinical validation of biomarkers of activity based on positron emission tomography/computed tomography (PET-CT) and transcriptomics in sputum-negative pulmonary tuberculosis lesion tissue. Methods: Nine patients with sputum-negative pulmonary tuberculosis treated surgically at the Shanghai Public Health Clinical Center for Thoracic Surgery from January 1, 2017 to December 31, 2019 were retrospectively collected as the discovery group, including four males and five females, aged 20-57 years (mean 36 years). All of the patients underwent PET-CT scanning before surgery, and the resected specimens were postoperatively classified according to preoperative PET-CT. The resected specimens were divided into areas with increased fluorodeoxyglucose (FDG) metabolism (SUVmax>3) and areas with normal FDG metabolism (SUVmax ≤ 3) according to the preoperative PET-CT performance. After sample processing, total RNA was extracted from the tissues of different regions, and then whole gene transcriptome sequencing was performed. Bioinformatics analysis of the two sets of data was performed to discover the expression profiles of the differences in whole gene transcriptome data between the two regions and to screen for candidate biomarkers. Eighty patients with sputum-negative pulmonary tuberculosis admitted to Shanghai Public Health Clinical Center from January 1, 2019 to January 1, 2021 were retrospectively collected as the validation group, including 37 males and 43 females, aged 20-62 years, with an average age of 39 years. The validation group was divided into a group with increased SUV (n=40) and a group without lesions on CT imaging (n=40). Enzyme-linked immunosorbent assay (ELISA) was used to determine the protein levels of candidate biomarkers in the peripheral plasma of patients. The effect of biomarkers was assessed using subject operating characteristic (ROC) curves. Student's t-test was used to determine whether the difference in protein levels between the two groups was statistically significant. Results: Bioinformatics analysis revealed that the expression levels of C1QB, CCL19, CCL5 and HLA-DMB correlated with the metabolic activity of sputum-negative tuberculosis lesion tissue. Further screening and validation by the validation group confirmed that the difference in C1QB protein levels in the peripheral plasma of patients was statistically significant between the group with increased SUV and the group without lesions on CT imaging [(3.55±0.34) mg/L vs. (2.75±0.21) mg/L, t=4.12, P<0.001]. And the ROC curve showed that the area under the curve for C1QB protein levels was 0.731, which had potential clinical value. Conclusion: The C1QB protein level can be used to assess the activity of lesions in patients with sputum-negative tuberculosis and is a potential biomarker.
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Affiliation(s)
- L W Wu
- Department of Thoracic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - L Wang
- Department of Thoracic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - Z L Wen
- Department of Scientific Research, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - H Ma
- Department of Scientific Research, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - Q F Ou
- Department of Tuberculosis, Wuxi No.5 People's Hospital, Wuxi 214007, China
| | - C Wu
- Department of Tuberculosis, Changchun Infectious Disease Hospital, Changchun 130123, China
| | - X Gao
- Department of PET-CT, Universal Medical Imaging, Shanghai 200233, China
| | - L Shi
- Department of Thoracic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - H W Li
- Department of Thoracic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - F Xia
- Department of Lung Disease, the Navy's 905th Hospital, Shanghai 200050, China
| | - S Song
- Department of Pathology, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - Z Q Zhu
- Department of Laboratory, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - H Y Liu
- Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100006, China
| | - X C Chen
- School of Basic Medicine, Medicine Collage, Shenzhen University, Shenzhen 518060, China
| | - S L Zhang
- School of Basic Medicine, Medicine Collage, Shanghai Jiaotong University, Shanghai 200025, China
| | - J Y Huang
- Department of Scientific Research, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
| | - Y Z Song
- Department of Thoracic Surgery, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201052, China
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Mo SW, Zhu CZ, Liu XQ, Wan HQ, Li FX, Deng GF, Zhang ZD, Chen XC. [Mechanism of Mycobacterium tuberculosis on interleukin-6 receptor 3'-untranslated region methylation in CD4 +T cells]. Zhonghua Jie He He Hu Xi Za Zhi 2022; 45:379-386. [PMID: 35381636 DOI: 10.3760/cma.j.cn112147-20211206-00859] [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: 03/18/2023]
Abstract
Objective: To investigate the role and mechanism of DNA methylation in Mycobacterium tuberculosis (MTB lysate) -induced downregulation of interleukin-6 receptor(IL-6R) expression in CD4+T cells. Methods: A prospective study was conducted. Bisulfite sequencing (BSP) was applied to determine the methylation levels of CpG island in IL-6R promoter region and 3'untranslated region (3'UTR) region in CD4+T cells from peripheral blood mononuclear cells (PBMC) of control group (healthy person, n=10) and TB group (tuberculosis patients, n=10) in Shenzhen Third People's Hospital between 2019 and 2020. Quantitative reverse transcription-PCR (RT-qPCR) and Western blotting were used to detect the expression of IL-6R, DNMT1, DNMT3A and DNMT3B in MTB lysate-stimulated CD4+T cells and Jurkat E6-1 cells. Furthermore, PBMC in control group and Jurkat E6-1 cells activated by anti-CD3/CD28 antibody were stimulated by MTB lysates to detect the methylation levels of CpG island and IL-6R and DNMT expression. Transcriptional activity of differently methylation regions of IL-6R 3'UTR was detected by using luciferase reporter gene system. Results: IL-6R expression in TB group was lower than that in control group, but DNMT1 and DNMT3B expressions were higher than those in control group in CD4+T cells isolated from PBMC. There was no significant difference in the methylation rate of IL-6R promoter CpG island of CD4+T cells between control and TB group. However, the methylation rates of CpG island in 3'UTR region were significantly higher (P<0.001) in TB (69.5%±3.4%), compared with control (54.3%±4.7%). Besides, IL-6R expression was lower than unstimulated, while DNMT1 and DNMT3B expression was higher than unstimulated after MTB lysate-stimulation of activated control PBMC in vitro. The methylation rate of CpG island in IL-6R 3'UTR region of CD4+T cells increased from 58.8%±11.6% to 79.4%±10.9% (P<0.001) after MTB lysate-stimulated PBMC of the control. The same results were observed in the MTB lysate-stimulated CD4+T cells isolated from PBMC in control and Jurkat E6-1 cell line. Furthermore, IL-6R expression after co-treatment of the DNA methyltransferase inhibitor decitabine (5-aza) with MTB lysate was higher than that stimulated by MTB lysate alone. In addition, the methylation levels of CpG islands in the 3' UTR region of IL-6R were lower than those stimulated by MTB lysates alone after co-treatment of the DNA methyltransferase inhibitor decitabine (5-aza) with MTB lysates. The transcriptional activity of the fully unmethylated IL-6R 3'UTR CpG island reporter gene was higher than that of the fully methylated IL-6R 3'UTR CpG island. Conclusions: MTB lysates stimulation inhibited IL-6R expression transcriptionalely as well as on the protein level by inducing hypermethylation of CpG island in IL-6R 3'UTR region of CD4+T cells. The hypermethylation of CpG island in IL-6R 3'UTR region of CD4+T cells induced by MTB may be related to the increased expression of DNMT1 and DNMT3B.
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Affiliation(s)
- S W Mo
- Department of Pathogenic Biology, Medical College of Shenzhen University, Shenzhen 518061, China
| | - C Z Zhu
- Laboratory of Molecular Biology, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - X Q Liu
- Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Shenzhen 518120, China
| | - H Q Wan
- Integrated Chinese and Western Medicine Postdoctoral Research Station, Jinan University, Shenzhen 518120, China
| | - F X Li
- Department of Pathogenic Biology, Medical College of Shenzhen University, Shenzhen 518061, China
| | - G F Deng
- Second Department of Pulmonary,Shenzhen Third People's Hospital, Shenzhen 518112, China
| | - Z D Zhang
- Laboratory of Molecular Biology, Beijing Key Laboratory for Drug Resistance Tuberculosis Research, Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
| | - X C Chen
- Department of Pathogenic Biology, Medical College of Shenzhen University, Shenzhen 518061, China
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Lyu MH, Jiao DC, Wu JZ, Tian PQ, Ma YZ, Liu ZZ, Chen XC. [Construction of a nomogram prediction model for pathological complete response (pCR) of ipsilateral supraclavicular lymph node after neoadjuvant chemotherapy for breast cancer with first diagnosis of ipsilateral supraclavicular lymph node metastasis]. Zhonghua Zhong Liu Za Zhi 2022; 44:160-166. [PMID: 35184460 DOI: 10.3760/cma.j.cn112152-20200420-00358] [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: 06/14/2023]
Abstract
Objective: To develop a predictive model for pathologic complete response (pCR) of ipsilateral supraclavicular lymph nodes (ISLN) after neoadjuvant chemotherapy for breast cancer and guide the local treatment. Methods: Two hundred and eleven consecutive breast cancer patients with first diagnosis of ipsilateral supraclavicular lymph node metastasis who underwent ipsilateral supraclavicular lymph node dissection and treated in the Breast Department of Henan Cancer Hospital from September 2012 to May 2019 were included. One hundred and forty two cases were divided into the training set while other 69 cases into the validation set. The factors affecting ipsilateral supraclavicular lymph node pCR (ispCR)of breast cancer after neoadjuvant chemotherapy were analyzed by univariate and multivariate logistic regression analyses, and a nomogram prediction model of ispCR was established. Internal and external validation evaluation of the nomogram prediction model were conducted by receiver operating characteristic (ROC) curve analysis and plotting calibration curves. Results: Univariate logistic regression analysis showed that Ki-67 index, number of axillary lymph node metastases, breast pCR, axillary pCR, and ISLN size after neoadjuvant chemotherapy were associated with ispCR of breast cancerafter neoadjuvant chemotherapy (P<0.05). Multivariate logistic regression analysis showed that the number of axillary lymph node metastases (OR=5.035, 95%CI: 1.722-14.721, P=0.003), breast pCR (OR=4.662, 95%CI: 1.456-14.922, P=0.010) and ISLN size after neoadjuvant chemotherapy (OR=4.231, 95%CI: 1.194-14.985, P=0.025) were independent predictors of ispCR of breast cancer after neoadjuvant chemotherapy. A nomogram prediction model of ispCR of breast cancer after neoadjuvant chemotherapy was constructed using five factors: number of axillary lymph node metastases, Ki-67 index, breast pCR, axillary pCR and size of ISLN after neoadjuvant chemotherapy. The areas under the ROC curve for the nomogram prediction model in the training and validation sets were 0.855 and 0.838, respectively, and the difference was not statistically significant (P=0.755). The 3-year disease-free survival rates of patients in the ispCR and non-ispCR groups after neoadjuvant chemotherapy were 64.3% and 54.8%, respectively, with statistically significant differences (P=0.024), the 3-year overall survival rates were 83.8% and 70.2%, respectively, without statistically significant difference (P=0.087). Conclusions: Disease free survival is significantly improved in breast cancer patients with ispCR after neoadjuvant chemotherapy. The constructed nomogram prediction model of ispCR of breast cancer patients after neoadjuvant chemotherapy is well fitted. Application of this prediction model can assist the development of local management strategies for the ipsilateral supraclavicular region after neoadjuvant chemotherapy and predict the long-term prognosis of breast cancer patients.
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Affiliation(s)
- M H Lyu
- Department of Breast Surgery, Affiliated Cancer Hospital of Zhengzhou University (Henan Cancer Hospital), Zhengzhou 450008, China
| | - D C Jiao
- Department of Breast Surgery, Affiliated Cancer Hospital of Zhengzhou University (Henan Cancer Hospital), Zhengzhou 450008, China
| | - J Z Wu
- Department of Breast Surgery, Affiliated Cancer Hospital of Zhengzhou University (Henan Cancer Hospital), Zhengzhou 450008, China
| | - P Q Tian
- Department of Breast Surgery, Affiliated Cancer Hospital of Zhengzhou University (Henan Cancer Hospital), Zhengzhou 450008, China
| | - Y Z Ma
- Department of Breast Surgery, Affiliated Cancer Hospital of Zhengzhou University (Henan Cancer Hospital), Zhengzhou 450008, China
| | - Z Z Liu
- Department of Breast Surgery, Affiliated Cancer Hospital of Zhengzhou University (Henan Cancer Hospital), Zhengzhou 450008, China
| | - X C Chen
- Department of Breast Surgery, Affiliated Cancer Hospital of Zhengzhou University (Henan Cancer Hospital), Zhengzhou 450008, China
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Zhang BY, Chen M, Chen XC, Cao K, You Y, Qian YJ, Yu WK. Berberine reduces circulating inflammatory mediators in patients with severe COVID-19. Br J Surg 2021; 108:e9-e11. [PMID: 33640910 PMCID: PMC7799351 DOI: 10.1093/bjs/znaa021] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 09/07/2020] [Indexed: 01/14/2023]
Affiliation(s)
- B Y Zhang
- Department of Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, Jiangsu Province 210008, China
| | - M Chen
- Department of Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, Jiangsu Province 210008, China
| | - X C Chen
- Department of Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, Jiangsu Province 210008, China
| | - K Cao
- Department of Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, Jiangsu Province 210008, China
| | - Y You
- Department of Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, Jiangsu Province 210008, China
| | - Y J Qian
- Department of Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, Jiangsu Province 210008, China
| | - W K Yu
- Department of Critical Care Medicine, Nanjing Drum Tower Hospital, The Affiliated Hospital of Nanjing University Medical School, No. 321 Zhongshan Road, Nanjing, Jiangsu Province 210008, China
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Wang P, Li CX, Zhang Y, Chen J, Chen XC, Yang D, Zhou J, Zong XP, Yang Z, Wu M, Yang MZ, Song YQ, Zhu J, Wu DP. [Autologous hematopoietic stem cell transplantation treatment for T cell lymphoblastic lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2020; 41:198-203. [PMID: 32311888 PMCID: PMC7357929 DOI: 10.3760/cma.j.issn.0253-2727.2020.03.003] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
目的 探讨自体造血干细胞移植(auto-HSCT)巩固治疗T淋巴母细胞淋巴瘤(T-LBL)的疗效及相关影响因素。 方法 对2006年4月至2017年7月在苏州大学附属第一医院血液科和北京大学肿瘤医院淋巴瘤科接受auto-HSCT的41例T-LBL患者进行回顾性分析。 结果 ①41例T-LBL患者中,男30例,女11例,中位年龄24(11~53)岁,12例(29.3%)纵隔累及,20例(48.8%)骨髓累及,Ann Arbor分期Ⅲ期及以上33例(80.5%);移植前疾病处于第1次完全缓解(CR1)期26例(63.4%),非CR1期15例(36.6%);移植前国际预后指数(IPI)中低危组(<3分)29例(70.7%),中高危组(≥3分)12例(29.3%)。②移植后中位随访29(3~98)个月,全部41例患者的3年总生存(OS)率、无进展生存(PFS)率分别为(64.3±8.2)%、(66.0±7.8)%,3年累积复发率(CIR)为(30.7±7.4)%,3年非复发死亡率(NRM)为(4.8±4.6)%。③CR1组、非CR1组患者3年OS率分别为(83.4±7.6)%、(38.9±12.9)%(P=0.010),3年PFS率分别为(83.8±7.4)%、(40.0±12.6)%(P=0.006),3年CIR分别为(16.2±7.4)%、(53.3±12.9)%(P=0.015),3年NRM分别为0、(14.3±13.2)%(P=0.157)。④IPI中低危组、中高危组3年OS率分别为(76.9±8.4)%、(35.7±15.2)%(P=0.014),3年PFS率分别为(77.4±8.2)%、(40.0±14.6)%(P=0.011),3年CIR分别为(18.1±7.3)%、(60.0±14.6)%(P=0.006),3年NRM分别为(5.6±5.4)%、0(P=0.683)。 结论 auto-HSCT可显著改善T-LBL患者的预后,移植前疾病状态和IPI评分是影响auto-HSCT疗效的重要因素。
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Affiliation(s)
- P Wang
- Department of Hematology, The First Affiliiliated Hospital of Soochow University, Jiangsu Insititute of Hematology, Suzhou 215006, China
| | - C X Li
- Department of Hematology, The First Affiliiliated Hospital of Soochow University, Jiangsu Insititute of Hematology, Suzhou 215006, China
| | - Y Zhang
- Department of Hematology, The First Affiliiliated Hospital of Soochow University, Jiangsu Insititute of Hematology, Suzhou 215006, China
| | - J Chen
- Department of Hematology, The First Affiliiliated Hospital of Soochow University, Jiangsu Insititute of Hematology, Suzhou 215006, China
| | - X C Chen
- Department of Hematology, The First Affiliiliated Hospital of Soochow University, Jiangsu Insititute of Hematology, Suzhou 215006, China
| | - D Yang
- Department of Hematology, The First Affiliiliated Hospital of Soochow University, Jiangsu Insititute of Hematology, Suzhou 215006, China
| | - J Zhou
- Department of Hematology, The First Affiliiliated Hospital of Soochow University, Jiangsu Insititute of Hematology, Suzhou 215006, China
| | - X P Zong
- Department of Hematology, The First Affiliiliated Hospital of Soochow University, Jiangsu Insititute of Hematology, Suzhou 215006, China
| | - Z Yang
- Department of Hematology, The First Affiliiliated Hospital of Soochow University, Jiangsu Insititute of Hematology, Suzhou 215006, China
| | - M Wu
- Department of Lymphoma, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) , Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - M Z Yang
- Department of Lymphoma, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) , Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y Q Song
- Department of Lymphoma, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) , Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - J Zhu
- Department of Lymphoma, Key laboratory of Carcinogenesis and Translational Research (Ministry of Education) , Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - D P Wu
- Department of Hematology, The First Affiliiliated Hospital of Soochow University, Jiangsu Insititute of Hematology, Suzhou 215006, China
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Chen XC, Litvinov YA, Wang M, Wang Q, Zhang YH. Denoising scheme based on singular-value decomposition for one-dimensional spectra and its application in precision storage-ring mass spectrometry. Phys Rev E 2019; 99:063320. [PMID: 31330675 DOI: 10.1103/physreve.99.063320] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Indexed: 11/07/2022]
Abstract
This work concerns noise reduction for one-dimensional spectra in the case that the signal is corrupted by an additive white noise. The proposed method starts with mapping the noisy spectrum to a partial circulant matrix. In virtue of singular-value decomposition of the matrix, components belonging to the signal are determined by inspecting the total variations of left singular vectors. Afterwards, a smoothed spectrum is reconstructed from the low-rank approximation of the matrix consisting of the signal components only. The denoising effect of the proposed method is shown to be highly competitive among other existing nonparametric methods, including moving average, wavelet shrinkage, and total variation. Furthermore, its applicable scenarios in precision storage-ring mass spectrometry are demonstrated to be rather diverse and appealing.
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Affiliation(s)
- X C Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Yu A Litvinov
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.,GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany.,Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany
| | - M Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Q Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China.,School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Y H Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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Wang YK, Chen XC, Wang JB, Duan X, Zhou SJ, Yang J, Yang T, Ye RH, Yang YC, Yao ST, Duan S, He N. [Molecular transmission clusters on HCV genotypes among newly reported HIV/HCV co-infection in Dehong Dai and Jingpo autonomous prefecture of Yunnan province, 2016]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 40:191-195. [PMID: 30744271 DOI: 10.3760/cma.j.issn.0254-6450.2019.02.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [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 understand the characteristics on major strain subtypes of hepatitis C virus among HIV/HCV co-infected patients, so as to explore the molecular transmission clusters and related risk factors of HCV strains. Methods: A total of 336 newly reported HIV-infected patients were diagnosed as HIV/HCV co-infection in Dehong Dai and Jingpo autonomous prefecture (Dehong) in 2016. We used Nested PCR to amplify CE1 and NS5B genes among 318 samples with plasma levels above 200 μl, before using the combining phylogenetic tree and constructing molecular propagation network method to analyze the related data. Results: A total of 267 HIV/HCV co-infection patients who had met the HCV genotyping requirements were screened the gene subtypes were diversified. Among these genotypes, proportions of 3b, 6n, 6u, 1a, 3a and other subtypes appeared as 32.6% (87/267), 18.4% (49/267), 15.7%(42/267), 13.1%(35/267), 11.2%(30/267) and 9.0%(24/267) respectively. Molecular transmission network of five major HCV genotypes was constructed with a clustering rate of 39.1% (95/243). The clustering rate of subtype 1a was the highest, as 71.4% (25/35). Results from the multivariate logistic regression showed that ethnic minorities other than the Yi and Jingpo (vs. the Han, OR=0.17, 95%CI: 0.04-0.71), the married spouses (vs. the unmarried, OR=0.42, 95%CI: 0.18-0.94), the 6n and 3a subtype (vs. the 3b subtype, OR=0.34, 95%CI: 0.12-0.95; OR=0.22, 95%CI: 0.05-0.93) were more difficult to form transmission clusters. However, the 6u and 1a subtype (vs. the 3b subtype, OR=3.10, 95%CI: 1.21-7.94; OR=4.00, 95%CI: 1.32-12.11) seemed more likely to form the transmission clusters. Conclusion: Ethnicity, marital status and genetic subtypes were factors significantly associated with the formation of transmission clusters related to the major HCV gene subtypes among newly reported HIV/HCV co-infection in Dehong.
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Affiliation(s)
- Y K Wang
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - X C Chen
- Department of Epidemiology, School of Public Health, The Key Laboratory for Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - J B Wang
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - X Duan
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - S J Zhou
- Department of Epidemiology, School of Public Health, The Key Laboratory for Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - J Yang
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - T Yang
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - R H Ye
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - Y C Yang
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - S T Yao
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - S Duan
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - N He
- Department of Epidemiology, School of Public Health, The Key Laboratory for Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
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Chen XC, Zhu XH, Lin BG, Li LZ, Yu ZL, Xiang MD, Yu YJ. [Children's non-carcinogenic health risk assessment of heavy metals exposure to residential indoor dust around an e-waste dismantling area in South China]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:360-364. [PMID: 30982268 DOI: 10.3760/cma.j.issn.0253-9624.2019.04.006] [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 evaluate the non-carcinogenic health risk of heavy metals (As, Cd, Cr, Cu, Mn, Pb and Zn) in residential indoor dust for young children around an e-waste dismantling area in South China. Methods: A village around an e-waste dismantling area in South China was selected as a research site in October 2016. Convenience sampling method was used to select 36 houses in the village and 36 dust samples were collected by vacuum cleaner. The concentrations of heavy metals (Cd, Cr, Cu, Mn, Pb and Zn) in each sample were determined and expressed by the average value. Non-carcinogenic health risk assessment was conducted using the US Environmental Protection Agency (EPA) Health Risk Assessment (HRA) model, the American Toxicology and Disease Registry (ATSDR) Target-organ Toxicity Dose (TTD) approach and the ATSDR Binary Weight-of-Evidence (BINWOE) model. Results: The mean ± SD of concentrations of As, Cd, Cr, Cu, Mn, Pb and Zn were (48.90±33.91), (5.95±3.89), (173.57±580.37), (412.71±1 190.00), (612.82±540.70), (297.41±293.22) and (1 052.81±1 156.48) mg/kg, respectively. The HI value of TTD (2.670) and BINWOE (2.933) were higher than the safety threshold of EPA recommended non-carcinogenic health risk. The HI value of TTD and BINWOE were 1.93 and 2.12 times higher than the HI value of HRA (1.386). Conclusion: There was non-carcinogenic health risk of heavy metals (As, Cd, Cr, Cu, Mn, Pb and Zn) via residential indoor dust around the e-waste dismantling area for local children.
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Affiliation(s)
- X C Chen
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Science, Guangzhou 510655, China
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15
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Yang D, Wang P, Chen J, Li CX, Zhang Y, Chen XC, Wu DP. [Long term efficacy of COPADM regimen in the treatment of 20 patients with Burkitt lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:645-649. [PMID: 30180465 PMCID: PMC7342846 DOI: 10.3760/cma.j.issn.0253-2727.2018.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the long term efficacy of COPADM regimen in the treatment of Burkitt lymphoma (BL). Methods: The clinical data of 39 patients with BL from April 2006 to June 2017 were retrospectively analyzed. According to different chemotherapy regimens, the patients were divided into COPADM group and control group. Results: ①Of 39 BL patients, 26 were male and 13 female. The median age was 30 (11-63) years old, including 25 younger than 40 and 14 older than 40. Among them, 33 patients were in stage Ⅲ-Ⅳ, 13 patients had B symptoms and 25 patients were IPI score≥3. ② Twenty patients treated with COPADM regimen (COPADM group), the 3 year overall survival (OS) and progression-free survival (PFS) were (83.5±2.6)% and (73.2±3.1)%, respectively. Nineteen patients in the control group had a 3-year OS and EFS of (47.4±2.4) % and (42.1±2.4) %, respectively. There were significant differences in OS and EFS between the two groups (all P<0.001). ③Of the 20 patients in COPADM group, 12 were younger patients (age≤40 years), their 3-year OS and EFS were (93.7±3.9)% and (83.3±5.4)%, respectively. The other 8 patients were older than 40 years old, and their 3-year OS and EFS were (48.3±8.5) %, (37.6±6.0) %, respectively. Both OS and EFS in younger patients was significantly better than older patients (P=0.004, P=0.045). ④ There were 24 patients treated with combination of Rituximab, their 3-year OS and EFS were (73.9±9.2)% and (69.9±9.6)%, respectively. The other 15 patients were treated without Rituximab, and their 3-year OS and EFS were (51.3±13.3) % and (38.1±12.9) %, respectively. There were significant differences in OS and EFS between the two groups (P=0.042, P=0.008). Conclusion: COPADM regimen may improve the efficacy of BL. COPADM combined with Rituximab enables BL patients with greater benefit. The prognosis is significantly worse in patients older than 40 years old than in those less than 40 years old.
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Affiliation(s)
- D Yang
- Department of Hematology, the First Affiliated Hospital of Suzhou University, Jiangsu Institute of Hematology, Suzhou 215006, China
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Chen HF, Jiang QJ, Qiu YQ, Chen XC, Fan B, Wang Y, Wang DN. Hollow-Core-Photonic-Crystal-Fiber-Based Miniaturized Sensor for the Detection of Aggregation-Induced-Emission Molecules. Anal Chem 2018; 91:780-784. [PMID: 30475594 DOI: 10.1021/acs.analchem.8b03219] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A miniature sensor for detection of aggregation-induced-emission (AIE) molecules is proposed in this work. The sensing head is fabricated by use of hollow-core photonic crystal fiber with a core diameter of about 4.8 μm. The cladding holes are sealed with a fusion splicing technique, and the central hole remains open to allow the filtration of solution with AIE molecules. When the solution is excited by an ultraviolet lamp, the fluorescence is received by a fiber-optic spectrometer. The fluorescence intensity is associated with the concentration of AIE molecules and the infiltrated-core length. In the whole process of the experiments, the output-peak wavelength is stable, which indicates that the existing forms of AIE particles are stable, and the fluorescence reabsorption can be neglected. The experimental results obtained are in accordance with traditional microplate-spectrophotometer methods. The most exciting result is that the amount of sample measured can be as low as 0.36 nL, which allows the detection of AIE molecules at only 0.02 pmol. In addition, the miniature sensor was successfully applied to the detection of an AIE-based bioprobe for evaluating the activity of the dipeptidyl-peptidase 4 (DPP-4) inhibitor sitagliptin with an IC50 of 59.80 ± 3.06 nM. The advantages of small device size and nanoliter-scale sample volumes suggest that the proposed sensor is promising for many biosensing applications.
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Affiliation(s)
- H F Chen
- College of Optical and Electronic Technology , China Jiliang University , Hangzhou , Zhejiang 310018 , China.,State Key Laboratory of Advanced Optical Communication Systems and Networks , Shanghai Jiaotong University , Shanghai 200000 , China
| | - Q J Jiang
- College of Optical and Electronic Technology , China Jiliang University , Hangzhou , Zhejiang 310018 , China.,State Key Laboratory of Advanced Optical Communication Systems and Networks , Shanghai Jiaotong University , Shanghai 200000 , China
| | - Y Q Qiu
- College of Optical and Electronic Technology , China Jiliang University , Hangzhou , Zhejiang 310018 , China
| | - X C Chen
- College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , Zhejiang 310058 , China
| | - B Fan
- College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , Zhejiang 310058 , China
| | - Y Wang
- College of Pharmaceutical Sciences , Zhejiang University , Hangzhou , Zhejiang 310058 , China
| | - D N Wang
- College of Optical and Electronic Technology , China Jiliang University , Hangzhou , Zhejiang 310018 , China
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Zhou BJ, Wu X, Chen XC, Guo S. [Two cases of intracranial complications of acute sinusitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 53:688-689. [PMID: 30293262 DOI: 10.3760/cma.j.issn.1673-0860.2018.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- B J Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China
| | - X Wu
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China
| | - X C Chen
- Department of Otorhinolaryngology Head and Neck Surgery, the Second Affiliated Hospital of Dalian Medical University, Dalian 116027, China
| | - S Guo
- Department of Otorhinolaryngology Head and Neck Surgery, the Third People's Hospital of Dalian, Dalian 116027, China
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Wang JB, Chen XC, Duan X, Yang J, Wang YK, Yang T, Ye RH, Yang YC, Yao ST, Jiang Y, Duan S, He N. [Epidemiological characteristics of newly reported HIV infections in Chinese and Burmese residents, during 2012-2016 in Dehong Dai and Jingpo Autonomous Prefecture, Yunnan province]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 38:1372-1375. [PMID: 29060982 DOI: 10.3760/cma.j.issn.0254-6450.2017.10.015] [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 understand the epidemiological characteristics of newly reported HIV infections in Chinese and Burmese residents during 2012-2016 in Dehong Dai and Jingpo Autonomous Prefecture of Yunnan province (Dehong) and to provide evidence for the development of related programs on prevention and control. Methods: All the HIV infections who were newly reported during 2012-2016 in Dehong, were recruited as the study subjects, with epidemiological characteristics of the cases analyzed by using the software SPSS 22.0. Results: A total of 5 692 HIV infections were newly reported between 2012 and 2016 (including 5 592 in this study), in which the Chinese patients accounted for 43.3% (2 419) and the rest 56.7% (3 173) were Burmese. Differences in age, gender and other social characteristics of these newly reported HIV infections were statistically significant between the Chinese and the Burmese (all p-values <0.05). Most cases were males and between the age of 20-49 years old. Other characteristics of the patients would include: having had primary school education, married, being farmers, and with CD(4)(+)T cells counts ≥350 cells/μl. HIV infection was mainly transmitted through sexual contact among the Chinese patients but through injecting drug use among the Burmese patients. Conclusions: Epidemiological characteristics of the newly reported HIV infections were different between the Chinese and the Burmese, between 2012 and 2016 in Dehong. Targeted prevention and control programs should be taken.
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Affiliation(s)
- J B Wang
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - X C Chen
- Department of Epidemiology, School of Public Health, The Key Laboratory for Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - X Duan
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - J Yang
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - Y K Wang
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - T Yang
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - R H Ye
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - Y C Yang
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - S T Yao
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - Y Jiang
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S Duan
- Dehong Dai and Jingpo Autonomous Prefecture Center for Disease Control and Prevention, Mangshi 678400, China
| | - N He
- Department of Epidemiology, School of Public Health, The Key Laboratory for Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
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Xin JW, Xiao XL, Chen XC, Pan XD. [Application of Chinese version of ACE-Ⅲ in type 2 diabetes mellitus patients with mild cognitive impairment]. Zhonghua Yi Xue Za Zhi 2017; 97:3455-3459. [PMID: 29275578 DOI: 10.3760/cma.j.issn.0376-2491.2017.44.004] [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 application and best cut-off value of Chinese version of Addenbrooke's cognitive examination-Ⅲ(ACE-Ⅲ) in type 2 diabetes mellitus (T2DM) patients with mild cognitive impairment. Methods: A total of 18 T2DM patients with normal cognitive function (NCI group) and 40 T2DM patients with mild cognitive impairment (MCI group) treated in outpatient clinic or ward of Department of Neurology and Endocrinology in Fujian Medical University Union Hospital between January 2015 and February 2016 were enrolled. Mini Mental State Scale (MMSE), Montreal cognitive assessment scale (MoCA), Activity of Daily Living Scale (ADL) and the Chinese version of ACE-Ⅲ were used to assess cognitive function of subjects and to assess the value of ACE-Ⅲ in the diagnosis of T2DM patients with mild cognitive impairment. Results: The Cronbach's alpha of the Chinese version of ACE-Ⅲ is 0.768. ACE-Ⅲ and MoCA were correlative (r=0.768, P<0.001). The area under the receiver operating characteristic (ROC) curve for ACE-Ⅲ was 0.906 (95%CI: 0.827-0.985). When the cut-off value for diagnosis was 87.5, the maximum Youden index was 0.769, with a sensitivity of 0.825 and a specificity of 0.944. Patients in MCI group got a lower score in the sub-items of attention/orientation, memory, verbal fluency, language and visual space of ACE-Ⅲ compared to those in NCI group, and the differences were statistically significant (t=5.336, P<0.001; t=5.530, P<0.001; t=4.556, P<0.001; t=5.301, P<0.001; t=2.821, P=0.008). Conclusion: The Chinese version of ACE-Ⅲ had good internal consistency reliability, and it could effectively detect impairment of general cognitive function and single cognitive domains in T2DM patients.
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Affiliation(s)
- J W Xin
- Department of Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou 350001, China
| | - X L Xiao
- Department of Geriatrics, Zhongshan Hospital, Xiamen University, Xiamen 361000, China
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20
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Huang HW, Jiang YB, Fu TW, Xu T, Chen XC, Jin ZM, Wu DP. [Efficacy of surgery and rituximab in primary gastric diffuse large B-cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2017; 37:602-6. [PMID: 27535862 PMCID: PMC7364997 DOI: 10.3760/cma.j.issn.0253-2727.2016.07.012] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
目的 探讨手术联合化疗与单纯化疗对原发胃弥漫大B细胞淋巴瘤(PGDLBCL)患者生存的影响,并分析化疗过程中联合应用利妥昔单抗(R)对其预后的影响。 方法 回顾性分析83例PGDLBCL患者的临床资料,并分析外科手术及利妥昔单抗对患者生存的影响。 结果 83例患者中男43例,女40例,中位年龄52 (20~76)岁,中位随访时间为36 (4~59)个月。手术联合化疗组(40例)和单纯化疗组(43例)患者的5年总生存(OS)率分别为68.4%、85.9%(P=0.117),疾病无进展生存(PFS)率分别为66.7%、82.6%(P=0.258),差异均无统计学意义。手术联合化疗患者中R-CHOP方案组(23例)和CHOP方案组(17例)患者的5年OS率分别为73.6%、64.2%(P=0.113),PFS率分别为71.2%、62.5%(P= 0.147);单纯化疗患者中R-CHOP方案组(24例)和CHOP方案组(19例)患者的5年OS率分别为85.7%、83.5%(P=0.152),PFS率分别为83.4%、81.8%(P=0.307)。单纯化疗组和手术联合化疗组Lugano分期早期(Ⅰ~Ⅱ1期)患者的5年OS率分别为86.4%、78.7%,差异无统计学意义(P=0.283);晚期(Ⅱ2~Ⅳ期)患者分别为74.6%、58.5%,差异有统计学意义(P=0.040)。多因素分析显示IPI评分是影响预后的独立因素(RR=0.370,95% CI 0.089~3.537,P=0.015)。 结论 单纯化疗或手术联合化疗对PGDLBCL患者长期生存的影响差异无统计学意义,但由于手术可能造成患者生存质量的下降,因此对于无手术指征者更倾向于推荐单纯化疗。本研究中利妥昔单抗的联合应用未能使大部分这类患者的生存显著获益,但这需要进一步多中心、大样本的研究来证实。
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Affiliation(s)
- H W Huang
- Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
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Xu X, Zhang P, Shuai P, Chen RJ, Yan XL, Zhang YH, Wang M, Litvinov YA, Xu HS, Bao T, Chen XC, Chen H, Fu CY, Kubono S, Lam YH, Liu DW, Mao RS, Ma XW, Sun MZ, Tu XL, Xing YM, Yang JC, Yuan YJ, Zeng Q, Zhou X, Zhou XH, Zhan WL, Litvinov S, Blaum K, Audi G, Uesaka T, Yamaguchi Y, Yamaguchi T, Ozawa A, Sun BH, Sun Y, Dai AC, Xu FR. Identification of the Lowest T=2, J^{π}=0^{+} Isobaric Analog State in ^{52}Co and Its Impact on the Understanding of β-Decay Properties of ^{52}Ni. Phys Rev Lett 2016; 117:182503. [PMID: 27835000 DOI: 10.1103/physrevlett.117.182503] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Indexed: 06/06/2023]
Abstract
Masses of ^{52g,52m}Co were measured for the first time with an accuracy of ∼10 keV, an unprecedented precision reached for short-lived nuclei in the isochronous mass spectrometry. Combining our results with the previous β-γ measurements of ^{52}Ni, the T=2, J^{π}=0^{+} isobaric analog state (IAS) in ^{52}Co was newly assigned, questioning the conventional identification of IASs from the β-delayed proton emissions. Using our energy of the IAS in ^{52}Co, the masses of the T=2 multiplet fit well into the isobaric multiplet mass equation. We find that the IAS in ^{52}Co decays predominantly via γ transitions while the proton emission is negligibly small. According to our large-scale shell model calculations, this phenomenon has been interpreted to be due to very low isospin mixing in the IAS.
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Affiliation(s)
- X Xu
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - P Zhang
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Graduate University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - P Shuai
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - R J Chen
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - X L Yan
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Y H Zhang
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - M Wang
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Yu A Litvinov
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany
| | - H S Xu
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - T Bao
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - X C Chen
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany
| | - H Chen
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Graduate University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - C Y Fu
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Graduate University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - S Kubono
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Y H Lam
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - D W Liu
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Graduate University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - R S Mao
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - X W Ma
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - M Z Sun
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Graduate University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - X L Tu
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - Y M Xing
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Graduate University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - J C Yang
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Y J Yuan
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Q Zeng
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Research Center for Hadron Physics, National Laboratory of Heavy Ion Accelerator Facility in Lanzhou and University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - X Zhou
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
- Graduate University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - X H Zhou
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - W L Zhan
- Key Laboratory of High Precision Nuclear Spectroscopy and Center for Nuclear Matter Science, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - S Litvinov
- GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291 Darmstadt, Germany
| | - K Blaum
- Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany
| | - G Audi
- CSNSM, Univ Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, 91405 Orsay, France
| | - T Uesaka
- RIKEN Nishina Center, RIKEN, Saitama 351-0198, Japan
| | - Y Yamaguchi
- RIKEN Nishina Center, RIKEN, Saitama 351-0198, Japan
| | - T Yamaguchi
- Department of Physics, Saitama University, Saitama 338-8570, Japan
| | - A Ozawa
- Insititute of Physics, University of Tsukuba, Ibaraki 305-8571, Japan
| | - B H Sun
- School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, People's Republic of China
| | - Y Sun
- Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
| | - A C Dai
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
| | - F R Xu
- State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871, People's Republic of China
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Gu CH, Li CX, Ye L, Liu H, Ma JF, Wang T, Zou Q, Chen J, Chen XC, Wu DP. [Effects of iron chelation therapy on allogeneic hematopoietic stem cell transplantation in myelodysplastic syndrome patients with iron overload]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:189-93. [PMID: 27033754 PMCID: PMC7342944 DOI: 10.3760/cma.j.issn.0253-2727.2016.03.003] [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] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To investigate the effects of iron chelation therapy on hematopoietic reconstitution and related complications of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in patients with myelodysplastic syndrome (MDS). METHODS Various clinical parameters were analyzed retrospectively in 57 MDS patients with iron overload who received allo-HSCT. According to the level of serum ferritin (SF) before transplantation divided patients into two groups: the effective treatment group (SF<1 000 μg/L) and iron overload group (SF≥1 000 μg/L). RESULTS ①30/57 cases were received iron chelation treatment, 27/57 patients didn' t received iron chelating therapy before transplantation. 19/30 cases were in the effective treatment group, and the median SF level before transplantation was 561 (223-846) μg/L. 11/30 cases were in the iron overload group, and the median SF level before transplantation was 1 262 (1 100-2 352) μg/L. The median SF level was 1 540 (1 320-3 112) μg/L of 27 patients didn't received iron chelating therapy before transplantation. ② The rate of fully-engraftment in the effective treatment group and iron overload group was 19 cases (100.0% ) and 34 cases (89.5% ), myeloid reconstitution of 12(10-18) and 12(11-30) days respectively (P=0.441), and platelet reconstitution of 13(12-30) and 15 (10-32) days respectively (P=0.579). ③The infection risk rate of the effective treatment group was less than iron overload group [36.8% (7/19) vs 82.4% (28/34), P=0.002]. ④The incidence of aGVHD in effective treatment group was less than iron overload group [26.3%(5/19) vs 64.7%(22/34), P= 0.010]. All patients of the effective treatment group were Ⅰ/Ⅱ degree. 16 cases were Ⅰ/Ⅱ degree and 6 cases were Ⅲ/Ⅳ degree in the iron overload group. ⑤ 6 cases of iron overload group accepted iron chelation treatment early post-transplantation, and SF level decreased from 2 870 (2 205-3 580) μg/L to 1 270 (1 020-1 650) μg/L. ⑥The difference of median disease-free survival time between the effective treatment group and iron overload group was not statistically significant [28.9 (0.3-89.5) months vs 21.2(0.1-81.0) months, χ(2)=3.751, P=0.053]. CONCLUSIONS Iron overload obviously increased transplant-related complications, and effective iron chelation therapy before transplantation significantly decreased the incidence of infection and degree of aGVHD, thereby reduced the non-relapse mortality in patients with MDS.
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Affiliation(s)
- C H Gu
- Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou 215006, China
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23
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Gai MT, Ma YT, Yang YN, Liu F, Xie X, Li XM, Ma X, Fu ZY, Chen BD, Chen XC. [Current status regarding the cardiovascular disease-related risk levels among the hypertensive population of different ethnicities in Xinjiang Uygur Autonomous Region, China]. Zhonghua Yi Xue Za Zhi 2016; 96:565-9. [PMID: 26902200 DOI: 10.3760/cma.j.issn.0376-2491.2016.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To assess the status of the cardiovascular disease associated risk levels among hypertensive population of Han, Uygur and Kazakh ethnicities, in Xinjiang Uygur Autonornous Region, to guide hypertension prevention and treatment in different ethnicities. METHODS Four stages random cluster sampling method was used, and all the data was collected from Xinjiang local residents aged over 18 between October 2007 and March 2010. RESULTS A total of 14 618 subjects completed this survey, in which 2 654 Han, 1 612 Uygur and 2034 Kazakh people diagnosed with hypertension was included in this research. Most of them were"grade 1 hypertension", and the percentage of grade 3 hypertension was Han (19.1%), Uygur (17.3%) and Kazakh (32.3%), respectively. Majority hypertensive people accompanied with 1 risk factor. The risk proportions of low, medium, high and very high in hypertension population of different ethnicities were Han (19.4%, 34.6%, 46.1%), Uygur (17.7%, 37.6%, 44.7%), Kazakh (12.5%, 38.0%, 49.4%) respectively. In Han, Uygur and Kazakh ethnicities, the percentage of high risk and very high risk was highest in hypertensive men aged over 60 years old.The percentages of hypertension awareness were 42.0%, 45.6%, 46.5% and percentages of medicine therapy were 29.6%, 23.4%, 25.2% for Han, Uygur and Kazakh ethnicities, respectively. CONCLUSIONS Hypertensive people among Han, Uygur and Kazakh ethnicities in Xinjiang are mainly under high risk and very high risk situation of cardiovascular disease, especially in men aged ≥60. The percentage of hypertension awareness and medicine therapy in high risk and very high risk population is the highest, while percentage of awareness in medium risk population is low.
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Affiliation(s)
- M T Gai
- Department of Cardiology, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830011, China
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Zhang Y, Wang N, Ma J, Chen XC, Li Z, Zhao W. Expression profile analysis of new candidate genes for the therapy of primary osteoporosis. Eur Rev Med Pharmacol Sci 2016; 20:433-440. [PMID: 26914116] [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: 06/05/2023]
Abstract
OBJECTIVE Primary osteoporosis is a progressive bone disease that is characterized by a decrease in bone mass and density which can lead to an increased risk of fracture. Most of present treatments are effective for osteoporosis, but have limitations and side-effects. With the aging of the world population is increasing, the incidence of osteoporosis is rising. Therefore, the purpose of this study was to identify new candidate genes used as the therapeutic targets of primary osteoporosis. MATERIALS AND METHODS In this study, microarray data GSE35958 were downloaded from Gene Expression Omnibus, then the differentially expressed genes (DEGs) were identified by limma package. Gene Ontology (GO) and KEGG pathway enrichment analyses were performed for both up- and down-regulated DEGs using DAVID. In addition, the transcription factor analysis was conducted for DEGs. The protein-protein interaction (PPI) network was constructed by STRING and Cytoscape. Finally, CFinder was used to analyze the PPI sub-network. RESULTS Totally, 327 up-regulated DEGs and 396 down-regulated DEGs were identified. The DEGs such as EGFR and AKT1 were mainly enriched in the pathway of focal adhesion. EGFR was also involved in cell adhesion based on GO enrichment analysis. Functional analysis of DEGs indicated that 26 transcription factors were screened. Moreover, EGFR, AKT1 and transcription factor CTNNB1 were the key nodes with high degrees according to PPI network and sub-network. CONCLUSIONS The literature suggested that AKT1, EGFR and CTNNB1 were closely related to osteoblastic differentiation and osteoclastogenesis. Some crucial DEGs such as EGFR, AKT1 and CTNNB1 might be connected with primary osteoporosis and could be used as therapeutic targets of osteoporosis.
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Affiliation(s)
- Y Zhang
- Department of Orthopedics, The Central Hospital Affiliated to Shenyang Medical College, City Shenyang, Province Liaoning, China.
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Wan Y, Tang MH, Chen XC, Chen LJ, Wei YQ, Wang YS. Inhibitory effect of liposomal quercetin on acute hepatitis and hepatic fibrosis induced by concanavalin A. ACTA ACUST UNITED AC 2015; 47:655-61. [PMID: 25098714 PMCID: PMC4165292 DOI: 10.1590/1414-431x20143704] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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: 11/19/2013] [Accepted: 03/17/2014] [Indexed: 02/06/2023]
Abstract
Immune response plays an important role in the development of hepatic fibrosis. In
the present study, we investigated the effects of quercetin on hepatitis and hepatic
fibrosis induced by immunological mechanism. In the acute hepatitis model, quercetin
(2.5 mg/kg) was injected iv into mice 30 min after concanavalin A
(Con A) challenge. Mice were sacrificed 4 or 24 h after Con A injection, and
aminotransferase tests and histopathological sections were performed. Treatment with
quercetin significantly decreased the levels of alanine aminotransferase (ALT) and
aspartate aminotransferase (AST). Consistent with this observation, treatment with
quercetin markedly attenuated the pathologic changes in the liver. A hepatic fibrosis
model was also generated in mice by Con A challenge once a week for 6 consecutive
weeks. Mice in the experimental group were treated with daily iv
injections of quercetin (0.5 mg/kg). Histopathological analyses revealed that
treatment with quercetin markedly decreased collagen deposition, pseudolobuli
development, and hepatic stellate cells activation. We also examined the effects of
quercetin on the nuclear factor kappa-light-chain-enhancer of activated B cells
(NF-κB) and transforming growth factor beta (TGF-β) pathways by immunohistochemistry
and real-time reverse transcriptase-polymerase chain reaction (RT-PCR). NF-κB and
TGF-β production was decreased after treatment with quercetin, indicating that the
antifibrotic effect of quercetin is associated with its ability to modulate NF-κB and
TGF-β production. These results suggest that quercetin may be an effective
therapeutic strategy in the treatment of patients with liver damage and fibrosis.
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Affiliation(s)
- Y Wan
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - M H Tang
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - X C Chen
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - L J Chen
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Y Q Wei
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Y S Wang
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
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Wang LF, Zhang J, Chen XC, He L, Zhao XY. [Treatment of cerebral palsy children by integrative medical sequential method: a clinical efficacy observation]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2014; 34:431-434. [PMID: 24812898] [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: 06/03/2023]
Abstract
OBJECTIVE To observe the efficacy of integrative medical sequential method in treating cerebral palsy (CP) children's intelligence development, muscular tension, serum interleukin 6 (IL-6), and tumor necrosis factor alpha (TNF-alpha). METHODS Totally 111 CP children were randomly assigned to the control group (50 cases) and the treatment group (61 cases). All patients received comprehensive rehabilitation training and intravenous dripping of Monosialotetrahexosylganglioside Sodium Injection for 10 days. But those in the treatment group additionally received Chinese medical enema for brain resuscitation, relieving rigidity of muscles and activating collaterals for 14 days. Then they started another medication cycle and lasted for a total of 6 cycles. Serum IL-6 levels and TNF-alpha contents were determined before treatment. Scoring for muscular tension, Gesell score for intelligence development, contents of serum IL-6 and TNF-alpha were assessed before and after treatment in the two groups. RESULTS Compared with before treatment in this group, muscular tension, Gesell scores for intelligence development all decreased in the two groups (P < 0.05). As for inter-group comparison, the decrement was more obvious in the treatment group than in the control group (P < 0.05). The total effective rate was 86.9% in the treatment group and 76.0% in the control group (P < 0.05). The contents of IL-6 and TNF-alpha were obviously reduced in the treatment group and the control group after treatment (P < 0.01). The decrement was more obvious in the treatment group (P < 0.05). CONCLUSION The two treatment methods were effective for CP children, but the efficacy was superior in the treatment group than in the control group, indicating integrative medical methods could play a synergistic effect and optimize the treatment program for CP.
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An FP, Balantekin AB, Band HR, Beriguete W, Bishai M, Blyth S, Brown RL, Butorov I, Cao GF, Cao J, Carr R, Chan YL, Chang JF, Chang Y, Chasman C, Chen HS, Chen HY, Chen SJ, Chen SM, Chen XC, Chen XH, Chen Y, Chen YX, Cheng YP, Cherwinka JJ, Chu MC, Cummings JP, de Arcos J, Deng ZY, Ding YY, Diwan MV, Draeger E, Du XF, Dwyer DA, Edwards WR, Ely SR, Fu JY, Ge LQ, Gill R, Gonchar M, Gong GH, Gong H, Gornushkin YA, Gu WQ, Guan MY, Guo XH, Hackenburg RW, Hahn RL, Han GH, Hans S, He M, Heeger KM, Heng YK, Hinrichs P, Hor Y, Hsiung YB, Hu BZ, Hu LJ, Hu LM, Hu T, Hu W, Huang EC, Huang HX, Huang HZ, Huang XT, Huber P, Hussain G, Isvan Z, Jaffe DE, Jaffke P, Jetter S, Ji XL, Ji XP, Jiang HJ, Jiao JB, Johnson RA, Kang L, Kettell SH, Kramer M, Kwan KK, Kwok MW, Kwok T, Lai WC, Lai WH, Lau K, Lebanowski L, Lee J, Lei RT, Leitner R, Leung A, Leung JKC, Lewis CA, Li DJ, Li F, Li GS, Li QJ, Li WD, Li XN, Li XQ, Li YF, Li ZB, Liang H, Lin CJ, Lin GL, Lin SK, Lin YC, Ling JJ, Link JM, Littenberg L, Littlejohn BR, Liu DW, Liu H, Liu JC, Liu JL, Liu SS, Liu YB, Lu C, Lu HQ, Luk KB, Ma QM, Ma XB, Ma XY, Ma YQ, McDonald KT, McFarlane MC, McKeown RD, Meng Y, Mitchell I, Nakajima Y, Napolitano J, Naumov D, Naumova E, Nemchenok I, Ngai HY, Ngai WK, Ning Z, Ochoa-Ricoux JP, Olshevski A, Patton S, Pec V, Peng JC, Piilonen LE, Pinsky L, Pun CSJ, Qi FZ, Qi M, Qian X, Raper N, Ren B, Ren J, Rosero R, Roskovec B, Ruan XC, Shao BB, Steiner H, Sun GX, Sun JL, Tam YH, Tanaka HK, Tang X, Themann H, Trentalange S, Tsai O, Tsang KV, Tsang RHM, Tull CE, Tung YC, Viren B, Vorobel V, Wang CH, Wang LS, Wang LY, Wang LZ, Wang M, Wang NY, Wang RG, Wang W, Wang WW, Wang X, Wang YF, Wang Z, Wang Z, Wang ZM, Webber DM, Wei H, Wei YD, Wen LJ, Whisnant K, White CG, Whitehead L, Wise T, Wong HLH, Wong SCF, Worcester E, Wu Q, Xia DM, Xia JK, Xia X, Xing ZZ, Xu J, Xu JL, Xu JY, Xu Y, Xue T, Yan J, Yang CG, Yang L, Yang MS, Ye M, Yeh M, Yeh YS, Young BL, Yu GY, Yu JY, Yu ZY, Zang SL, Zhan L, Zhang C, Zhang FH, Zhang JW, Zhang QM, Zhang SH, Zhang YC, Zhang YH, Zhang YM, Zhang YX, Zhang ZJ, Zhang ZP, Zhang ZY, Zhao J, Zhao QW, Zhao YB, Zheng L, Zhong WL, Zhou L, Zhou ZY, Zhuang HL, Zou JH. Spectral measurement of electron antineutrino oscillation amplitude and frequency at Daya Bay. Phys Rev Lett 2014; 112:061801. [PMID: 24580686 DOI: 10.1103/physrevlett.112.061801] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Indexed: 06/03/2023]
Abstract
A measurement of the energy dependence of antineutrino disappearance at the Daya Bay reactor neutrino experiment is reported. Electron antineutrinos (ν¯(e)) from six 2.9 GW(th) reactors were detected with six detectors deployed in two near (effective baselines 512 and 561 m) and one far (1579 m) underground experimental halls. Using 217 days of data, 41 589 (203 809 and 92 912) antineutrino candidates were detected in the far hall (near halls). An improved measurement of the oscillation amplitude sin(2)2θ(13)=0.090(-0.009)(+0.008) and the first direct measurement of the ν¯(e) mass-squared difference |Δm(ee)2|=(2.59(-0.20)(+0.19))×10(-3) eV2 is obtained using the observed ν¯(e) rates and energy spectra in a three-neutrino framework. This value of |Δm(ee)2| is consistent with |Δm(μμ)2| measured by muon neutrino disappearance, supporting the three-flavor oscillation model.
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Affiliation(s)
- F P An
- Institute of High Energy Physics, Beijing and East China University of Science and Technology, Shanghai
| | | | - H R Band
- University of Wisconsin, Madison, Wisconsin
| | - W Beriguete
- Brookhaven National Laboratory, Upton, New York
| | - M Bishai
- Brookhaven National Laboratory, Upton, New York
| | - S Blyth
- Department of Physics, National Taiwan University, Taipei
| | - R L Brown
- Brookhaven National Laboratory, Upton, New York
| | - I Butorov
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - G F Cao
- Institute of High Energy Physics, Beijing
| | - J Cao
- Institute of High Energy Physics, Beijing
| | - R Carr
- California Institute of Technology, Pasadena, California
| | - Y L Chan
- Chinese University of Hong Kong, Hong Kong
| | - J F Chang
- Institute of High Energy Physics, Beijing
| | - Y Chang
- National United University, Miao-Li
| | - C Chasman
- Brookhaven National Laboratory, Upton, New York
| | - H S Chen
- Institute of High Energy Physics, Beijing
| | - H Y Chen
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | | | - S M Chen
- Department of Engineering Physics, Tsinghua University, Beijing
| | - X C Chen
- Chinese University of Hong Kong, Hong Kong
| | - X H Chen
- Institute of High Energy Physics, Beijing
| | - Y Chen
- Shenzhen Univeristy, Shenzhen
| | - Y X Chen
- North China Electric Power University, Beijing
| | - Y P Cheng
- Institute of High Energy Physics, Beijing
| | | | - M C Chu
- Chinese University of Hong Kong, Hong Kong
| | | | - J de Arcos
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois
| | - Z Y Deng
- Institute of High Energy Physics, Beijing
| | - Y Y Ding
- Institute of High Energy Physics, Beijing
| | - M V Diwan
- Brookhaven National Laboratory, Upton, New York
| | - E Draeger
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois
| | - X F Du
- Institute of High Energy Physics, Beijing
| | - D A Dwyer
- Lawrence Berkeley National Laboratory, Berkeley, California
| | - W R Edwards
- Lawrence Berkeley National Laboratory, Berkeley, California and Department of Physics, University of California, Berkeley, California
| | - S R Ely
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - J Y Fu
- Institute of High Energy Physics, Beijing
| | - L Q Ge
- Chengdu University of Technology, Chengdu
| | - R Gill
- Brookhaven National Laboratory, Upton, New York
| | - M Gonchar
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - G H Gong
- Department of Engineering Physics, Tsinghua University, Beijing
| | - H Gong
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Y A Gornushkin
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - W Q Gu
- Shanghai Jiao Tong University, Shanghai
| | - M Y Guan
- Institute of High Energy Physics, Beijing
| | - X H Guo
- Beijing Normal University, Beijing
| | | | - R L Hahn
- Brookhaven National Laboratory, Upton, New York
| | - G H Han
- College of William and Mary, Williamsburg, Virginia
| | - S Hans
- Brookhaven National Laboratory, Upton, New York
| | - M He
- Institute of High Energy Physics, Beijing
| | - K M Heeger
- Department of Physics, Yale University, New Haven, Connecticut
| | - Y K Heng
- Institute of High Energy Physics, Beijing
| | - P Hinrichs
- University of Wisconsin, Madison, Wisconsin
| | - Yk Hor
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia
| | - Y B Hsiung
- Department of Physics, National Taiwan University, Taipei
| | - B Z Hu
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | - L J Hu
- Beijing Normal University, Beijing
| | - L M Hu
- Brookhaven National Laboratory, Upton, New York
| | - T Hu
- Institute of High Energy Physics, Beijing
| | - W Hu
- Institute of High Energy Physics, Beijing
| | - E C Huang
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - H X Huang
- China Institute of Atomic Energy, Beijing
| | - H Z Huang
- University of California, Los Angeles, California
| | | | - P Huber
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia
| | - G Hussain
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Z Isvan
- Brookhaven National Laboratory, Upton, New York
| | - D E Jaffe
- Brookhaven National Laboratory, Upton, New York
| | - P Jaffke
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia
| | - S Jetter
- Institute of High Energy Physics, Beijing
| | - X L Ji
- Institute of High Energy Physics, Beijing
| | - X P Ji
- School of Physics, Nankai University, Tianjin
| | - H J Jiang
- Chengdu University of Technology, Chengdu
| | | | - R A Johnson
- Department of Physics, University of Cincinnati, Cincinnati, Ohio
| | - L Kang
- Dongguan University of Technology, Dongguan
| | - S H Kettell
- Brookhaven National Laboratory, Upton, New York
| | - M Kramer
- Lawrence Berkeley National Laboratory, Berkeley, California and Department of Physics, University of California, Berkeley, California
| | - K K Kwan
- Chinese University of Hong Kong, Hong Kong
| | - M W Kwok
- Chinese University of Hong Kong, Hong Kong
| | - T Kwok
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - W C Lai
- Chengdu University of Technology, Chengdu
| | - W H Lai
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | - K Lau
- Department of Physics, University of Houston, Houston, Texas
| | - L Lebanowski
- Department of Engineering Physics, Tsinghua University, Beijing
| | - J Lee
- Lawrence Berkeley National Laboratory, Berkeley, California
| | - R T Lei
- Dongguan University of Technology, Dongguan
| | - R Leitner
- Charles University, Faculty of Mathematics and Physics, Prague
| | - A Leung
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - J K C Leung
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - C A Lewis
- University of Wisconsin, Madison, Wisconsin
| | - D J Li
- University of Science and Technology of China, Hefei
| | - F Li
- Institute of High Energy Physics, Beijing
| | - G S Li
- Shanghai Jiao Tong University, Shanghai
| | - Q J Li
- Institute of High Energy Physics, Beijing
| | - W D Li
- Institute of High Energy Physics, Beijing
| | - X N Li
- Institute of High Energy Physics, Beijing
| | - X Q Li
- School of Physics, Nankai University, Tianjin
| | - Y F Li
- Institute of High Energy Physics, Beijing
| | - Z B Li
- Sun Yat-Sen (Zhongshan) University, Guangzhou
| | - H Liang
- University of Science and Technology of China, Hefei
| | - C J Lin
- Lawrence Berkeley National Laboratory, Berkeley, California
| | - G L Lin
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | - S K Lin
- Department of Physics, University of Houston, Houston, Texas
| | - Y C Lin
- Chengdu University of Technology, Chengdu
| | - J J Ling
- Brookhaven National Laboratory, Upton, New York
| | - J M Link
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia
| | | | - B R Littlejohn
- Department of Physics, University of Cincinnati, Cincinnati, Ohio
| | - D W Liu
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois and Department of Physics, University of Houston, Houston, Texas
| | - H Liu
- Department of Physics, University of Houston, Houston, Texas
| | - J C Liu
- Institute of High Energy Physics, Beijing
| | - J L Liu
- Shanghai Jiao Tong University, Shanghai
| | - S S Liu
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - Y B Liu
- Institute of High Energy Physics, Beijing
| | - C Lu
- Joseph Henry Laboratories, Princeton University, Princeton, New Jersey
| | - H Q Lu
- Institute of High Energy Physics, Beijing
| | - K B Luk
- Lawrence Berkeley National Laboratory, Berkeley, California and Department of Physics, University of California, Berkeley, California
| | - Q M Ma
- Institute of High Energy Physics, Beijing
| | - X B Ma
- North China Electric Power University, Beijing
| | - X Y Ma
- Institute of High Energy Physics, Beijing
| | - Y Q Ma
- Institute of High Energy Physics, Beijing
| | - K T McDonald
- Joseph Henry Laboratories, Princeton University, Princeton, New Jersey
| | | | - R D McKeown
- College of William and Mary, Williamsburg, Virginia
| | - Y Meng
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia
| | - I Mitchell
- Department of Physics, University of Houston, Houston, Texas
| | - Y Nakajima
- Lawrence Berkeley National Laboratory, Berkeley, California
| | - J Napolitano
- Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York
| | - D Naumov
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - E Naumova
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - I Nemchenok
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - H Y Ngai
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - W K Ngai
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - Z Ning
- Institute of High Energy Physics, Beijing
| | | | - A Olshevski
- Joint Institute for Nuclear Research, Dubna, Moscow Region
| | - S Patton
- Lawrence Berkeley National Laboratory, Berkeley, California
| | - V Pec
- Charles University, Faculty of Mathematics and Physics, Prague
| | - J C Peng
- Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois
| | - L E Piilonen
- Center for Neutrino Physics, Virginia Tech, Blacksburg, Virginia
| | - L Pinsky
- Department of Physics, University of Houston, Houston, Texas
| | - C S J Pun
- Department of Physics, The University of Hong Kong, Pokfulam, Hong Kong
| | - F Z Qi
- Institute of High Energy Physics, Beijing
| | - M Qi
- Nanjing University, Nanjing
| | - X Qian
- Brookhaven National Laboratory, Upton, New York and California Institute of Technology, Pasadena, California
| | - N Raper
- Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York
| | - B Ren
- Dongguan University of Technology, Dongguan
| | - J Ren
- China Institute of Atomic Energy, Beijing
| | - R Rosero
- Brookhaven National Laboratory, Upton, New York
| | - B Roskovec
- Charles University, Faculty of Mathematics and Physics, Prague
| | - X C Ruan
- China Institute of Atomic Energy, Beijing
| | - B B Shao
- Department of Engineering Physics, Tsinghua University, Beijing
| | - H Steiner
- Lawrence Berkeley National Laboratory, Berkeley, California and Department of Physics, University of California, Berkeley, California
| | - G X Sun
- Institute of High Energy Physics, Beijing
| | - J L Sun
- China Guangdong Nuclear Power Group, Shenzhen
| | - Y H Tam
- Chinese University of Hong Kong, Hong Kong
| | - H K Tanaka
- Brookhaven National Laboratory, Upton, New York
| | - X Tang
- Institute of High Energy Physics, Beijing
| | - H Themann
- Brookhaven National Laboratory, Upton, New York
| | | | - O Tsai
- University of California, Los Angeles, California
| | - K V Tsang
- Lawrence Berkeley National Laboratory, Berkeley, California
| | - R H M Tsang
- California Institute of Technology, Pasadena, California
| | - C E Tull
- Lawrence Berkeley National Laboratory, Berkeley, California
| | - Y C Tung
- Department of Physics, National Taiwan University, Taipei
| | - B Viren
- Brookhaven National Laboratory, Upton, New York
| | - V Vorobel
- Charles University, Faculty of Mathematics and Physics, Prague
| | - C H Wang
- National United University, Miao-Li
| | - L S Wang
- Institute of High Energy Physics, Beijing
| | - L Y Wang
- Institute of High Energy Physics, Beijing
| | - L Z Wang
- North China Electric Power University, Beijing
| | - M Wang
- Shandong University, Jinan
| | - N Y Wang
- Beijing Normal University, Beijing
| | - R G Wang
- Institute of High Energy Physics, Beijing
| | - W Wang
- College of William and Mary, Williamsburg, Virginia
| | | | - X Wang
- College of Electronic Science and Engineering, National University of Defense Technology, Changsha
| | - Y F Wang
- Institute of High Energy Physics, Beijing
| | - Z Wang
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Z Wang
- Institute of High Energy Physics, Beijing
| | - Z M Wang
- Institute of High Energy Physics, Beijing
| | - D M Webber
- University of Wisconsin, Madison, Wisconsin
| | - H Wei
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Y D Wei
- Dongguan University of Technology, Dongguan
| | - L J Wen
- Institute of High Energy Physics, Beijing
| | | | - C G White
- Department of Physics, Illinois Institute of Technology, Chicago, Illinois
| | - L Whitehead
- Department of Physics, University of Houston, Houston, Texas
| | - T Wise
- University of Wisconsin, Madison, Wisconsin
| | - H L H Wong
- Lawrence Berkeley National Laboratory, Berkeley, California and Department of Physics, University of California, Berkeley, California
| | - S C F Wong
- Chinese University of Hong Kong, Hong Kong
| | - E Worcester
- Brookhaven National Laboratory, Upton, New York
| | - Q Wu
- Shandong University, Jinan
| | - D M Xia
- Institute of High Energy Physics, Beijing
| | - J K Xia
- Institute of High Energy Physics, Beijing
| | - X Xia
- Shandong University, Jinan
| | - Z Z Xing
- Institute of High Energy Physics, Beijing
| | - J Xu
- Beijing Normal University, Beijing
| | - J L Xu
- Institute of High Energy Physics, Beijing
| | - J Y Xu
- Chinese University of Hong Kong, Hong Kong
| | - Y Xu
- School of Physics, Nankai University, Tianjin
| | - T Xue
- Department of Engineering Physics, Tsinghua University, Beijing
| | - J Yan
- Xi'an Jiaotong University, Xi'an
| | - C G Yang
- Institute of High Energy Physics, Beijing
| | - L Yang
- Dongguan University of Technology, Dongguan
| | - M S Yang
- Institute of High Energy Physics, Beijing
| | - M Ye
- Institute of High Energy Physics, Beijing
| | - M Yeh
- Brookhaven National Laboratory, Upton, New York
| | - Y S Yeh
- Institute of Physics, National Chiao-Tung University, Hsinchu
| | | | - G Y Yu
- Nanjing University, Nanjing
| | - J Y Yu
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Z Y Yu
- Institute of High Energy Physics, Beijing
| | | | - L Zhan
- Institute of High Energy Physics, Beijing
| | - C Zhang
- Brookhaven National Laboratory, Upton, New York
| | - F H Zhang
- Institute of High Energy Physics, Beijing
| | - J W Zhang
- Institute of High Energy Physics, Beijing
| | | | - S H Zhang
- Institute of High Energy Physics, Beijing
| | - Y C Zhang
- University of Science and Technology of China, Hefei
| | - Y H Zhang
- Institute of High Energy Physics, Beijing
| | - Y M Zhang
- Department of Engineering Physics, Tsinghua University, Beijing
| | - Y X Zhang
- China Guangdong Nuclear Power Group, Shenzhen
| | - Z J Zhang
- Dongguan University of Technology, Dongguan
| | - Z P Zhang
- University of Science and Technology of China, Hefei
| | - Z Y Zhang
- Institute of High Energy Physics, Beijing
| | - J Zhao
- Institute of High Energy Physics, Beijing
| | - Q W Zhao
- Institute of High Energy Physics, Beijing
| | - Y B Zhao
- Institute of High Energy Physics, Beijing
| | - L Zheng
- University of Science and Technology of China, Hefei
| | - W L Zhong
- Institute of High Energy Physics, Beijing
| | - L Zhou
- Institute of High Energy Physics, Beijing
| | - Z Y Zhou
- China Institute of Atomic Energy, Beijing
| | - H L Zhuang
- Institute of High Energy Physics, Beijing
| | - J H Zou
- Institute of High Energy Physics, Beijing
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Zhang J, Yang LM, Pan XD, Lin N, Chen XC. Increased vesicular γ-GABA transporter and decreased phosphorylation of synapsin I in the rostral preoptic area is associated with decreased gonadotrophin-releasing hormone and c-Fos coexpression in middle-aged female mice. J Neuroendocrinol 2013; 25:753-61. [PMID: 23679216 DOI: 10.1111/jne.12050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 03/23/2013] [Accepted: 05/12/2013] [Indexed: 12/01/2022]
Abstract
Hypothalamic glutamate (Glu) and γ-GABA neurotransmission are involved in the ovarian hormone-induced gonadotrophin-releasing hormone (GnRH)/luteinising hormone (LH) surge in rodents. Studies have shown that reduced Glu and increased γ-GABA in the rostral preoptic area (rPOA) of the hypothalamus, where most activated GnRH neurones are located, play a key role in decreasing the reproductive function of female rats. However, the mechanism underlying the altered balance of these neurotransmitters is poorly understood. In the present study, we observed a decline in the function of GnRH neurones in the rPOA at the time of the GnRH/LH surge in middle-aged intact female mice with regular oestrous cycles. In young mice, there is an increase of vesicular Glu transporter 2 on the pro-oestrus afternoon, which is not observed in middle-aged mice. By contrast, vesicular γ-GABA transporter levels in young mice decrease at the time of the LH surge, whereas they increase in middle-aged mice. Of note, we found that, in middle-aged mice at the time of the GnRH/LH surge, the phosphorylation of synapsin I at Ser603 and Ca(2+) /calmodulin-dependent kinase IIα was significantly lower than in young mice. These data suggest that, in middle-aged mice, higher levels of presynaptic stores of GABA, a lack of increase of Glu and a decreased ability of synaptic vesicle mobilisation could account for the imbalance of Glu and GABA in the rPOA, which decreases the activation of GnRH neurones.
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Affiliation(s)
- Jing Zhang
- Key Laboratory of Brain Aging and Neurodegenerative Disease, Fujian Institute of Geriatrics, The Affiliated Union Hospital of Fujian Medical University, Fuzhou, China
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Zhang YH, Xu HS, Litvinov YA, Tu XL, Yan XL, Typel S, Blaum K, Wang M, Zhou XH, Sun Y, Brown BA, Yuan YJ, Xia JW, Yang JC, Audi G, Chen XC, Jia GB, Hu ZG, Ma XW, Mao RS, Mei B, Shuai P, Sun ZY, Wang ST, Xiao GQ, Xu X, Yamaguchi T, Yamaguchi Y, Zang YD, Zhao HW, Zhao TC, Zhang W, Zhan WL. Mass measurements of the neutron-deficient 41Ti, 45Cr, 49Fe, and 53Ni nuclides: first test of the isobaric multiplet mass equation in f p-shell nuclei. Phys Rev Lett 2012; 109:102501. [PMID: 23005283 DOI: 10.1103/physrevlett.109.102501] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Indexed: 06/01/2023]
Abstract
Isochronous mass spectrometry has been applied to neutron-deficient 58Ni projectile fragments at the HIRFL-CSR facility in Lanzhou, China. Masses of a series of short-lived T(z)=-3/2 nuclides including 41Ti, 45Cr, 49Fe, and 53Ni have been measured with a precision of 20-40 keV. The new data enable us to test for the first time the isobaric multiplet mass equation (IMME) in fp-shell nuclei. We observe that the IMME is inconsistent with the generally accepted quadratic form for the A=53, T=3/2 quartet. We perform full space shell model calculations and compare them with the new experimental results.
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Affiliation(s)
- Y H Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
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An FP, Bai JZ, Balantekin AB, Band HR, Beavis D, Beriguete W, Bishai M, Blyth S, Boddy K, Brown RL, Cai B, Cao GF, Cao J, Carr R, Chan WT, Chang JF, Chang Y, Chasman C, Chen HS, Chen HY, Chen SJ, Chen SM, Chen XC, Chen XH, Chen XS, Chen Y, Chen YX, Cherwinka JJ, Chu MC, Cummings JP, Deng ZY, Ding YY, Diwan MV, Dong L, Draeger E, Du XF, Dwyer DA, Edwards WR, Ely SR, Fang SD, Fu JY, Fu ZW, Ge LQ, Ghazikhanian V, Gill RL, Goett J, Gonchar M, Gong GH, Gong H, Gornushkin YA, Greenler LS, Gu WQ, Guan MY, Guo XH, Hackenburg RW, Hahn RL, Hans S, He M, He Q, He WS, Heeger KM, Heng YK, Hinrichs P, Ho TH, Hor YK, Hsiung YB, Hu BZ, Hu T, Hu T, Huang HX, Huang HZ, Huang PW, Huang X, Huang XT, Huber P, Isvan Z, Jaffe DE, Jetter S, Ji XL, Ji XP, Jiang HJ, Jiang WQ, Jiao JB, Johnson RA, Kang L, Kettell SH, Kramer M, Kwan KK, Kwok MW, Kwok T, Lai CY, Lai WC, Lai WH, Lau K, Lebanowski L, Lee J, Lee MKP, Leitner R, Leung JKC, Leung KY, Lewis CA, Li B, Li F, Li GS, Li J, Li QJ, Li SF, Li WD, Li XB, Li XN, Li XQ, Li Y, Li ZB, Liang H, Liang J, Lin CJ, Lin GL, Lin SK, Lin SX, Lin YC, Ling JJ, Link JM, Littenberg L, Littlejohn BR, Liu BJ, Liu C, Liu DW, Liu H, Liu JC, Liu JL, Liu S, Liu X, Liu YB, Lu C, Lu HQ, Luk A, Luk KB, Luo T, Luo XL, Ma LH, Ma QM, Ma XB, Ma XY, Ma YQ, Mayes B, McDonald KT, McFarlane MC, McKeown RD, Meng Y, Mohapatra D, Morgan JE, Nakajima Y, Napolitano J, Naumov D, Nemchenok I, Newsom C, Ngai HY, Ngai WK, Nie YB, Ning Z, Ochoa-Ricoux JP, Oh D, Olshevski A, Pagac A, Patton S, Pearson C, Pec V, Peng JC, Piilonen LE, Pinsky L, Pun CSJ, Qi FZ, Qi M, Qian X, Raper N, Rosero R, Roskovec B, Ruan XC, Seilhan B, Shao BB, Shih K, Steiner H, Stoler P, Sun GX, Sun JL, Tam YH, Tanaka HK, Tang X, Themann H, Torun Y, Trentalange S, Tsai O, Tsang KV, Tsang RHM, Tull C, Viren B, Virostek S, Vorobel V, Wang CH, Wang LS, Wang LY, Wang LZ, Wang M, Wang NY, Wang RG, Wang T, Wang W, Wang X, Wang X, Wang YF, Wang Z, Wang Z, Wang ZM, Webber DM, Wei YD, Wen LJ, Wenman DL, Whisnant K, White CG, Whitehead L, Whitten CA, Wilhelmi J, Wise T, Wong HC, Wong HLH, Wong J, Worcester ET, Wu FF, Wu Q, Xia DM, Xiang ST, Xiao Q, Xing ZZ, Xu G, Xu J, Xu J, Xu JL, Xu W, Xu Y, Xue T, Yang CG, Yang L, Ye M, Yeh M, Yeh YS, Yip K, Young BL, Yu ZY, Zhan L, Zhang C, Zhang FH, Zhang JW, Zhang QM, Zhang K, Zhang QX, Zhang SH, Zhang YC, Zhang YH, Zhang YX, Zhang ZJ, Zhang ZP, Zhang ZY, Zhao J, Zhao QW, Zhao YB, Zheng L, Zhong WL, Zhou L, Zhou ZY, Zhuang HL, Zou JH. Observation of electron-antineutrino disappearance at Daya Bay. Phys Rev Lett 2012; 108:171803. [PMID: 22680853 DOI: 10.1103/physrevlett.108.171803] [Citation(s) in RCA: 124] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2012] [Indexed: 05/23/2023]
Abstract
The Daya Bay Reactor Neutrino Experiment has measured a nonzero value for the neutrino mixing angle θ(13) with a significance of 5.2 standard deviations. Antineutrinos from six 2.9 GWth reactors were detected in six antineutrino detectors deployed in two near (flux-weighted baseline 470 m and 576 m) and one far (1648 m) underground experimental halls. With a 43,000 ton-GWth-day live-time exposure in 55 days, 10,416 (80,376) electron-antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to expected number of antineutrinos at the far hall is R=0.940±0.011(stat.)±0.004(syst.). A rate-only analysis finds sin(2)2θ(13)=0.092±0.016(stat.)±0.005(syst.) in a three-neutrino framework.
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Affiliation(s)
- F P An
- Institute of High Energy Physics, Beijing, China
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Chen XC, Huang SP, Wang XY. [Effect of astrocytes with different degrees of proliferation on multidrug resistance gene expression in rats with epilepsy]. Zhongguo Dang Dai Er Ke Za Zhi 2010; 12:908-911. [PMID: 21083989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To study the relationship of activated astrocytes and multidrug resistance gene (MDR) expression in rats with epilepsy. METHODS Astrocytes of neonatal Sprague-Dawley rats were separated and cultured. The cultured cells of passage 3 were activated by TNF-α for 2, 24 or 48 hrs. The culture media of cells with different degrees of proliferation were infused to the lateral cerebral ventricle of rats with epilepsy. The expression of MDR in the brain tissue was ascertained by PCR, immunocytochemistry and Western blot. RESULTS After 2 hrs of TNF-α stimulation, astrocytes began to proliferate, and reached a peak at 24 hrs. The expression of MDR in the brain tissue increased after infusion of culture medium of proliferated astrocytes in the TNF stimulation group compared with that in the control group without TNF stimulation. The level of MDR expression in the TNF stimulation group was positively correlated with the degrees of cell proliferation. CONCLUSIONS Proliferation of astrocytes can increase the expression of MDR in rats with epilepsy and is probably involved in the development of refractory epilepsy.
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Affiliation(s)
- Xiao-Cong Chen
- Department of Pediatrics, Second Affiliated Hospital, Medical School of Xi'an Jiaotong University, Xi'an 710004, China
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Wang YF, Wu JS, Mao Y, Chen XC, Zhou LF, Zhang Y. The optimal time-window for surgical treatment of spontaneous intracerebral hemorrhage: result of prospective randomized controlled trial of 500 cases. Acta Neurochir Suppl 2009; 105:141-5. [PMID: 19066100 DOI: 10.1007/978-3-211-09469-3_29] [Citation(s) in RCA: 24] [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] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The aim of this clinical study was to determine the optimal time-window for surgical treatment of spontaneous intracerebral hemorrhage (ICH). From January 1998 to September 2000, 17 hospitals in Shanghai participated in a prospective randomized controlled trial. Among a consecutive series of 500 patients with spontaneous ICH, 234 underwent medical treatment and 266 patients received surgical treatment. According to the interval from initial onset to treatment, they were divided into 3 stages: ultra-early (< or =7 h), early (7-24 h), and delayed (> 24 h). Perioperative evaluation (Glasgow Outcome Score), long-term outcome (the activities of daily living [ADL] score), mortality, as well as incidence of associated complications were compared respectively. We found that: a) in the ultra-early and early stages, both the perioperative and long-term outcome of surgical treatment was definitely better than medical treatment; b) for the outcome of surgical treatment, there was no significant difference between ultra-early and early stages; c) in ultra-early stage, risk of postoperative rebleeding was significantly higher, and decreased henceforth; d) in delayed stage, incidence of associated respiratory, urinary, and gastrointestinal system complications was higher in surgery group than in medication group. In summary, our study yielded conclusive evidence that the early stage (within 7-24 h) was the optimal time-window for surgical intervention of spontaneous ICH.
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Affiliation(s)
- Y F Wang
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
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Abstract
INTRODUCTION Intracerebral hemorrhage (ICH) is one of the most common clinical manifestations of human brain arteriovenous malformation (BAVM). However, the hemorrhagic mechanism of BAVM is still unclear. Leptin, first discovered in obesity research, has not been systematically studied in BAVM and ICH. We investigated expression and effect of leptin on human BAVM. METHODS Specimens were obtained from 6 BAVM patients, who had been divided into either hemorrhagic or non-hemorrhagic groups. Leptin, leptin receptor, and signal transducers and activators of transcription-3 (STAT3) were analyzed by different methods, such as gene chips, reverse transcription-polymerase chain reaction (RT-PCR), immunohistochemistry, and Western blot. Perinidal brain tissue around each BAVM served as control. RESULTS Gene chips and RT-PCR found transcriptional leptin raised at least 2 levels in hemorrhagic BAVM. Immunohistochemical slices also showed higher expression of leptin, leptin receptor, and STAT3 on nidus part of hemorrhagic BAVM than non-hemorrhagic ones. On Western blot analysis, hemorrhagic BAVMs had higher levels of leptin (p < 0.01). CONCLUSIONS The transcriptional and translational levels of leptin, leptin receptor, and STAT3 were higher in hemorrhagic BAVM, suggesting that leptin may play an important role in the hemorrhagic mechanism of BAVM.
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Affiliation(s)
- Q Xie
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
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Lin XJ, Chen XC, Wang L, Wei YQ, Kan B, Wen YJ, He X, Zhao X. Dynamic progression of an intraperitoneal xenograft model of human ovarian cancer and its potential for preclinical trials. J Exp Clin Cancer Res 2007; 26:467-474. [PMID: 18365540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This study was conducted to establish a feasible intraperitoneal xenograft model in nude mice which mimicked the dynamic progression of human ovarian cancer and to explore its potential for preclinical trials. A human ovarian tumor line SKOV3 was originally injected s.c. to develop tumors; then the tumors were harvested and minced into small particles for i.p. inoculation in three groups of nude mice which would be monitored consecutively. The intraperitoneal carcinomatosis and relevant organs were collected for histopathological dynamic comparison and CA125 immunohistochemical staining 7, 21 and 49 days after inoculation. An additional experiment with cisplatin sensitivity test was performed and tumor tissues were observed for apoptosis-Hoechst assay. The intraperitoneal carcinomatosis had a rapid progression which resulted in extensive dissemination on the peritoneal surfaces and invasion into abdominal lymph nodes, livers, pancreas and spleen. Tumor tissues revealed similar morphological features of primary tumor from which SKOV3 derived and part of in vivo tumor mass was positive for CA125. Cisplatin could significantly inhibit the intraperitoneal carcinomatosis growth. This model may provide a valuable platform to study the biological properties of ovarian cancer as well as to test new therapeutic strategies in preclinical trials.
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Affiliation(s)
- X J Lin
- Department of Gynecology and Obstetrics, Second West China Hospital, Sichuan University
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Hu JY, Chen XC, Li YQ, Smales RJ, Yip KH. Radiation-induced root surface caries restored with glassionomer cement placed in conventional and ART cavity preparations: Results at two years. Aust Dent J 2005; 50:186-90. [PMID: 16238217 DOI: 10.1111/j.1834-7819.2005.tb00359.x] [Citation(s) in RCA: 28] [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: 11/27/2022]
Abstract
BACKGROUND There are no published studies comparing the clinical performances of more-viscous glass-ionomer cement (GIC) restorations when placed using conventional and atraumatic restorative treatment (ART) cavity preparation methods to restore root surface caries. METHODS One dentist used encapsulated Fuji IX GP and Ketac-Molar to restore 72 conventional and 74 ART cavity preparations for 15 patients who had received cervicofacial radiation therapy. Two assessors evaluated the restorations at six, 12, and 24 months for retention, marginal defects and surface wear, and recurrent caries. RESULTS After two years, the cumulative restoration successes were 65.2 per cent for the conventional and 66.2 per cent for the ART cavity preparations, without statistical or clinical significance (P > 0.50). Restoration dislodgement accounted for 82.8 per cent and marginal defects for 17.2 per cent of all failures. There were no instances of unsatisfactory restoration wear or recurrent caries observed. Teeth with three or more restored cervical surfaces accounted for 79.3 per cent of all failures (P < 0.0001). CONCLUSIONS For root surface caries restored with GIC, the use of hand instruments only with the ART method was an equally effective alternative to conventional rotary instrumentation for cavity preparation. Larger restorations had higher failures, usually from dislodgement.
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Affiliation(s)
- J Y Hu
- Department of Operative Dentistry and Endodontics, School of Stomatology, Peking University, Beijing, PR China
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Shi Y, Witte RS, Milas SM, Neiss JH, Chen XC, Cain CA, O'Donnell M. Microwave-induced thermal imaging of tissue dielectric properties. Ultrason Imaging 2003; 25:109-121. [PMID: 12924532 DOI: 10.1177/016173460302500203] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
A new imaging method, microwave-induced thermal imaging (MITI), was developed to differentiate tissue based on thermal and dielectric properties. Image contrast depends on temporal strain in tissue, which was determined by one-dimensional speckle tracking using a phase-sensitive, correlation-based technique. The underlying mechanisms were analyzed and experimental results on biologic tissue agreed well with theoretical predictions. Because of its strong contrast between water-bearing and lipid-bearing tissue, the technique may enhance existing intravascular ultrasound (IVUS) imaging systems to identify vulnerable arterial plaque.
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Affiliation(s)
- Y Shi
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI 48109-2099, USA
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Xu Q, Chen XC. CD4 T lymphocytes cause hepatocyte apoptosis by releasing Th1 cytokines in cellular immunological liver injury. Inflamm Res 2002; 51:444-50. [PMID: 12365717 DOI: 10.1007/pl00012410] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
OBJECTIVE AND DESIGN To investigate how lymphocytes induce hepatocyte apoptosis. MATERIALS AND METHODS Liver injury was elicited by the trinitrobenzenesulfonic acid (TNBS) in picryl chloride (PCI)-sensitized mice. An ear swelling was also triggered with TNBS to confirm its eliciting ability. An in vitro assay for inducing hepatocyte apoptosis was established. RESULTS TNBS significantly elicited liver injury as well as ear swelling in PCl-sensitized mice. In the liver injury, hepatocyte apoptosis was detected 6 h after TNBS treatment. Cyclosporin A inhibited both ear swelling and hepatocyte apoptosis. When spleen cells from PCl-sensitized mice were co-cultured for 24 h with those from normal mice that had been treated with TNBS for 20 min, the supernatant collected showed a strong apoptosis-inducing activity for hepatocytes. The apoptosis was significantly reduced when the spleen cells from PCl-sensitized mice were treated previously with anti-CD3 or anti-CD4 antibody. By treating the cells, galactosamine and cycloheximide also lowered the apoptosis-inducing activity and decreased TNF-alpha and IL-2 productions. However, galactosamine treatment of hepatocytes greatly facilitated their susceptibility to supernatant-induced apoptosis. By contrast, cycloheximide completely blocked the facilitation. CONCLUSIONS CD4+ T cells in mice with liver injury may cause hepatocyte apoptosis by releasing cytokines including TNF-alpha and IL-2.
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Affiliation(s)
- Q Xu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, China.
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Zhu YG, Zhuo GS, Chen ZZ, Chen XC. Cationic lipids enhanced cellular uptake and activity of bcl-2 antisense oligodeoxynucleotide G3139 in HL-60 cells. Acta Pharmacol Sin 2001; 22:1007-12. [PMID: 11749792] [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: 02/23/2023] Open
Abstract
AIM To explore the effect of cationic lipid 1,3-di-oleoyloxy-2-(6-carboxy-spermyl)-propylamid (DOSPER) on cellular uptake and activity of bcl-2 antisense oligodeoxynucleotide G3139 in HL-60 cells. METHODS The cell-associated mean fluorescence intensity and the percentage of cells with positive staining for Bcl-2 were measured by flow cytometry. The subcellular distribution of fluorescein isothiocyanate (FITC)-labeled G3139 was observed by fluorescence microscope and the bcl-2 mRNA level was detected by reverse transcription polymerase chain reaction (RT-PCR). RESULTS (1) DOSPER increased cellular uptake of G3139 into HL-60 cells greatly. When DOSPER/G3139 (microg : microg) was 2 : 1, the uptake of G3139 reached top after treatment for 2 h and increased about 20 times compared with application of G3139 alone. In the presence of DOSPER, G3139 was localized in nucleus and cytosol with a bright spotted fluorescence staining. However, G3139 was localized in cytoplasm with faint fluorescence in the absence of DOSPER. (2) Cell-associated G3139 could be effluxed out of cells. After treated with G3139 in the presence of DOSPER for 4 h, the cell-associated G3139 could be fitted by C(t)=68.2e(-0.60) t+31.8e(-0.02) t (% of initial value), with a half-life of approximately 1.1 h. In the absence of DOSPER, the cell-associated G3139 could be fitted by C(t)=64.8e(-2.27) t+35.2e(-0.04) t, with a half-life of about 18 min. (3) In the presence of DOSPER, G3139 1.0 micromol/L specially reduced bcl-2 mRNA level, and Bcl-2 protein decreased from 97 % +/- 4 % to 70.6 % +/- 2.1 %. CONCLUSION DOSPER enhanced the activity of G3139 and it might be attributed to increase of the cellular uptake and change of the subcellular distribution of G3139.
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Affiliation(s)
- Y G Zhu
- Fujian Institute of Hematology, Union Hospital, Fujian Medical University, Fuzhou 350001, China.
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Chen XC, Zhang XM, Luo NS, Fang C, Liu YM, Wu W. Effects of endothelin receptor A antagonist FR139317 on rats with congestive heart failure. Acta Pharmacol Sin 2001; 22:896-900. [PMID: 11749771] [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: 02/23/2023] Open
Abstract
AIM To study the effects of a selective endothelin receptor A (ETA) antagonist FR139317 on rats with congestive heart failure. METHODS A congestive heart failure model was established via left coronary artery ligation in adult male Wistar rats. The rats with congestive heart failure were treated with FR139317 at two doses (1 and 5 mg . kg-1 . d-1 respectively for 6 weeks) or with vehicle. Hemodynamics, plasma level of endothelin-1 (ET-1), and mortality rate of rats were measured. RESULTS Both groups treated with FR139317 (high and low dose) have lower mortality rate (25.0 % and 28.6 % vs 50.0 %) and lower plasma level of ET-1 than that of vehicle [(3.6 +/- 1.2) ng/L and (4.9 +/- 1.5) ng/L vs (5.8 +/- 1.3) ng/L]. Comparing to vehicle group, left ventricular end-diastolic pressures of the FR139317-treated groups were improved significantly [(12 +/- 6) mmHg and (14 +/- 7) mmHg vs (22 +/- 9) mmHg]. FR139317 at a higher dose reduced the mean arterial pressure of the rats with congestive heart failure and decreased the plasma concentration of endothelin to a closer level of rats with normal heart function than lower dose. CONCLUSION Selective ETA antagonist FR139317 improved the hemodynamics and reduced the plasma ET-1 level and the mortality of rats with congestive heart failure
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Affiliation(s)
- X C Chen
- Division of Cardiology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University of Medical Sciences, Guangzhou 510120, China.
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Chen XC, Zhu YG, Wang XZ, Zhu LA, Huang C. Protective effect of ginsenoside Rg1 on dopamine-induced apoptosis in PC12 cells. Acta Pharmacol Sin 2001; 22:673-8. [PMID: 11749836] [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: 02/23/2023] Open
Abstract
AIM To explore the possible molecular mechanism of exogenous dopamine-induced apoptosis in PC12 cells and the protective effect of ginsenoside Rg1. METHODS Flow cytometric assay was used to quantify the apoptotic cells and measure the percentage of cells with positive Bcl-2 and Bax proteins. The morphology of apoptotic cells was evaluated by transmission electron microscope. DNA fragmentation was observed by gel electrophoresis. Caspase-3 activity was determined by fluorescent spectrofluorometer and the expressive bcl-2 and bax mRNA by semiquantitative reverse transcription polymerase chain reaction (RT-PCR). RESULTS Dopamine 0.15, 0.30, 0.45, and 0.60 mmol/L induced PC12 cell apoptosis from 1.1 % +/- 0.4 % (control) to 41 % +/- 3 %, 46.4 % +/ -2.7 %, 53 % +/ -3 %, and 64.5 % +/- 2.7 %, respectively. After treatment with dopamine 0.45 mmol/L following pretreatment with Rg1 10 micromol/L for 24 h, the percentage of apoptotic cells and caspase-3 activity decreased from 53 % +/- 3 % and 683 +/- 8 (mean fluorescence intensity, MFI) to 1.9 % +/- 0.6 % and 325 +/- 5, and the percentage of cells with positive Bcl-2 protein increased from 14.3 % +/- 1.1 % to 25.9 % +/- 1.6 %, however, the percentage of cells with positive Bax protein decreased from 48 % +/- 3 % to 35 % +/- 3 %, compared with group treated with DA 0.45 mmol/L alone. CONCLUSION Ginsenoside Rg1 protected PC12 cells against apoptosis by inhibiting the activation of caspase-3 and regulating the ratio of Bcl-2 to Bax protein.
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Affiliation(s)
- X C Chen
- Fujian Institute of Geriatrics, Union Hospital, Fujian Medical Univisity, Fuzhou 350001, China.
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Chen XC, Zhu YG, Wang XZ, Zhu LA, Huang C. [Possible mechanism of the protective effects of ginsenoside Rg1 on apoptosis in PC12 cells]. Yao Xue Xue Bao 2001; 36:411-4. [PMID: 12585122] [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
AIM To explore the possible mechanism of the protective effect of ginsenoside Rg1 on dopamine-induced apoptosis in PC12 cells. METHODS Flow cytometric assay was performed to quantify the apoptotic cells and detect the positive percentage of Bcl-2 and Bax proteins in PC12 cells. The expression of bcl-2 and bax mRNA was identified by reverse transcription polymerase chain reaction (RT-PCR). The CPP32 activity was measured by fluorescent spectrofluorometer. RESULTS Dopamine-induced apoptosis in PC12 cells was inhibited by pretreatment with 10 mumol.L-1 Rg1. Simultaneously, the expression of Bcl-2 protein and mRNA were increased, and the Bax protein and mRNA were decreased. The activation of CPP32 was inhibited after pretreatment with Rg1. CONCLUSION Rg1 protects against dopamine-induced apoptosis in PC12 cells and this effect might be attributed to its regulation of the ratio of Bcl-2 to Bax and its inhibition of the activation of CPP32.
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Affiliation(s)
- X C Chen
- Union Hospital of Fujian Medical University, Fujian Institute of Geriatrics, Fuzhou 350001, China
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Kinoshita K, Lee CG, Tashiro J, Muramatsu M, Chen XC, Yoshikawa K, Honjo T. Molecular mechanism of immunoglobulin class switch recombination. Cold Spring Harb Symp Quant Biol 2001; 64:217-26. [PMID: 11232289 DOI: 10.1101/sqb.1999.64.217] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- K Kinoshita
- Department of Medical Chemistry, Kyoto University Faculty of Medicine, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
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Kattan M, Platzker A, Mellins RB, Schluchter MD, Chen XC, Peavy H, Steinbach S, Wohl ME, Hiatt P, Hunter J, Colin AA. Respiratory diseases in the first year of life in children born to HIV-1-infected women. Pediatr Pulmonol 2001; 31:267-76. [PMID: 11288208 DOI: 10.1002/ppul.1038] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Our objective was to describe the respiratory complications, clinical findings, and chest radiographic changes in the first year of life in infected and uninfected children born to HIV-1-infected women. We prospectively followed a cohort of 600 infants born to HIV-1-infected women from birth to 12 months in a multicenter study. Of these, 93 infants (15.5%) were HIV-1-infected, 463 were uninfected, and 44 were of unknown status prior to death or loss to follow-up. The cumulative incidence ( +/- SE) of an initial pneumonia episode at 12 months was 24.1 +/- 4.7% in HIV-1-infected children compared to 1.4 +/- 0.6% in HIV-1-uninfected children (P < 0.001). The rate of Pneumocystis carinii pneumonia (PCP) was 9.5 per 100 child-years. The HIV-1 RNA load was not higher in the group that developed pneumonia in the first year vs. those who did not. Children who developed lower respiratory tract infections or PCP had increased rates of decline of CD4 cell counts during the first 6 months of life. Lower maternal CD4 cell counts were associated with higher rates of pneumonia, and upper and lower respiratory tract infections. The rates of upper respiratory tract infection and bronchiolitis/reactive airway disease in infected children were not significantly different than in uninfected children. At 12 months, significantly more HIV-1-infected than uninfected children had tachypnea and chest radiographs with nodular and reticular densities. There was no relationship between cytomegalovirus infection in the first year of life and radiographic changes or occurrences of pneumonia. In conclusion, despite a low incidence of PCP, rates of pneumonia remain high in HIV-infected children in the first year of life. The incidence of pneumonia in uninfected infants born to HIV-1-infected mothers is low. Chest X-ray abnormalities and tachypnea suggest that subacute disease is present in infected infants. Further follow-up is warranted to determine its nature.
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Affiliation(s)
- M Kattan
- Department of Pediatrics, Mount Sinai School of Medicine, New York, New York 10029, USA.
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Colin AA, Sunil Rao J, Chen XC, Hunter JM, Hanrahan J, Hiatt P, Kattan M, Koumbourlis A, Mellins RB, Peavy HH, Platzker A, Ting A, Steinbach S, Wohl ME. Forced expiratory flow in uninfected infants and children born to HIV-infected mothers. Am J Respir Crit Care Med 2001; 163:865-73. [PMID: 11282758 DOI: 10.1164/ajrccm.163.4.9901040] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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: 11/16/2022] Open
Abstract
The Pediatric Pulmonary and Cardiovascular Complications of Vertically Transmitted HIV (P(2)C(2) HIV) Study is a multicenter study examining pulmonary and cardiac outcomes in offspring of HIV-infected mothers. This portion of the P(2)C(2) study tests the hypothesis that infants exposed to, but uninfected by, maternal HIV have normal maximal expiratory flow at functional residual capacity (V'max,(FRC)). We obtained 500 measurements of V'max,(FRC) by rapid thoracic compression in 285 children ages 6-30 mo in five U.S. centers. The data were compared with those from a healthy cohort of children described elsewhere. V'max,(FRC) rose with height in a linear relationship. The slope of the regression line in the exposed infants did not differ statistically from the slope in the comparison group, but the intercept was about 20% lower (p < 0.001). Height and weight were comparable in the two cohorts, and the differences between intercepts persisted after adjusting for birth weight and gestational age. However, maternal HIV infection cannot be assumed to be the cause as the cohorts may have differed in other variables, such as socioeconomic status and frequency of maternal smoking and drug use. Also, measurements varied substantially within and between our five centers, probably in part because of different racial and ethnic distributions. In summary, maternal HIV infection probably has only a modest effect, if any, on maximal expiratory flow at functional residual capacity in uninfected infants.
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Affiliation(s)
- A A Colin
- Division of Pulmonary Medicine, Children's Hospital, Department of Pediatrics/Harvard Medical School, Boston, Massachusetts 02115, USA.
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Yang YX, Chen XC, Liu JY, Pan LM, Yan HC, Xu QM. Effect of zinc intake on fetal and infant growth among Chinese pregnant and lactating women. Biomed Environ Sci 2000; 13:280-286. [PMID: 11351861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The relationship between maternal nutrient intake and fetal size or infant growth was studied in 1956 pregnant women, 599 parturients and 1043 lactating women, 318 non-pregnant women included as controls. The study was conducted in eight regions that were representative of all geographical areas of China. The diet was comprised primarily of cereal products with 70% to 85% of the zinc intake derived from plant sources. Women in the third trimester of pregnancy, parturients and lactating women consumed more food than non-pregnant women or women in the first two trimesters of pregnancy. Total energy, protein and iron intakes met the recommended allowances for each stage of reproduction. Calcium and zinc intakes, however, were 50% and 47% of the amount recommended, respectively. Only 7.2% of the women exceeded two-thirds of the recommended zinc intake. The mean intake of zinc was 6.5 mg to 9.0 mg each day among all the subjects. Correlation and stepwise regression analysis showed that maternal zinc intake was a predictor factor for fetal dimensions and birthweight. The results of this study show that fetal growth and birthweight are directly related to maternal zinc intake among Chinese women, and that there is no relationship between maternal zinc intake during lactation and infant height, weight, or weight gain from birth.
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Affiliation(s)
- Y X Yang
- Institute of Nutrition and Food Hygiene, Chinese Academy of Preventive Medicine, Beijing 100050, China
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Abstract
Nitric oxide (NO) possesses many physiological effects and S-nitrosothiols have been identified in a variety of tissues exhibiting many NO-like activities. This review focuses on the latest discoveries pertaining to the biological functions of S-nitrosothiols and the recent research progress in the chemical properties and biomedical applications of RSNOs.
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Affiliation(s)
- K Wang
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA
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Platzker AC, Colin AA, Chen XC, Hiatt P, Hunter J, Koumbourlis AC, Schluchter MD, Ting A, Wohl ME. Thoracoabdominal compression and respiratory system compliance in HIV-infected infants. Am J Respir Crit Care Med 2000; 161:1567-71. [PMID: 10806156 DOI: 10.1164/ajrccm.161.5.9902066] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [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: 11/16/2022] Open
Abstract
The thoracoabdominal compression technique (TAC) is used to measure expiratory flow in infants. We investigated whether TAC caused a change in total thoracic compliance (Crs), resistance (Rrs), and respiratory system time constant (Trs). We studied 41 infants (mean age, 12.4 mo; SD, 7.5) from five centers studying longitudinal lung and cardiovascular function of infants from HIV-infected mothers. We measured Crs, Rrs, and Trs before and after TAC. Changes in Crs, Rrs, and Trs after TAC were not dependent on the length of time since TAC. Crs and Trs were reduced after TAC, p = 0.013 and p = 0.003, respectively, whereas Rrs did not change. When compared with uninfected infants, HIV-infected infants had a larger post-pre TAC percent decline in Crs (p = 0.003) and a post-pre TAC rise in mean Rrs (p = 0.03). These differences remained significant after adjusting for sex and age. When performing infant pulmonary function testing, TAC itself produces a temporary decrease in Crs and Trs that is more significant in infants at risk for abnormal lung volume or compliance. Therefore, the sequence of performing the infant lung function parameters should be the same each time the testing is repeated with TAC as the last parameter tested at each testing session.
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Affiliation(s)
- A C Platzker
- The Divisions of Pediatric Pulmonology, Childrens Hospital Los Angeles, CA, USA.
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Cohen H, Chen XC, Sunkle S, Davis L, Geromanos K, Xanthos G, Shearer W. Ability of caregivers to read delayed hypersensitivity skin tests in children exposed to and infected by HIV. The Pediatric Pulmonary and Cardiovascular Complications of Vertically Transmitted HIV Study Group. J Pediatr Health Care 2000; 14:50-5. [PMID: 10736138 DOI: 10.1067/mph.2000.101341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVES To identify whether nonmedical home caregivers (parents, guardians) could accurately interpret the results of delayed hypersensitivity skin tests in children, thereby obviating the need for a return visit for a professional reading. METHODS Patients who were enrolled in the Pediatric Pulmonary and Cardiac Complications of HIV (P2C2HIV) study were given annual skin tests to tuberculin purified protein derivative, Candida, and tetanus as part of the study protocol. Caregivers were instructed verbally about how to read and measure erythema and induration. They were given written instructions to take home as well and were asked to return in 48 to 72 hours for the professional reading. On the morning of their return visit, they were to read the skin tests and record the results before coming to the clinic. RESULTS When compared with readings by professional staff, caregivers had a high percentage of false-negative readings for both Candida (24%) and tetanus (41%) skin tests. These false-negative readings did not correlate with age, gender, race, or educational level of the caregivers. CONCLUSIONS The high percentage of false-negative readings by the caregivers emphasizes the need for professional reading of delayed hypersensitivity skin tests.
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Affiliation(s)
- H Cohen
- UCLA School of Medicine, USA
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Tang KC, Duffield C, Chen XC, Choucair S, Creegan R, Mak C, Lesley G. Nursing as a career choice: perceptions of school students speaking Arabic, Serbo-Croatian, Spanish, Turkish or Vietnamese at home. AUST HEALTH REV 1999; 22:107-21. [PMID: 10387895 DOI: 10.1071/ah990107] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [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: 11/23/2022]
Abstract
Australia is a multicultural society and nowhere is this more evident than in Sydney where 25% of the population speaks a language other than English. In one of the largest area health services in New South Wales, the five most frequently spoken languages at home are Arabic, Serbo-Croatian, Spanish, Turkish or Vietnamese, with these language groups comprising 12% of Sydney's population. Yet nurses speaking one of these five languages comprise less than 1% of the nursing workforce. A cost-effective method of addressing the shortage of nurses speaking languages other than English is to recruit students who already speak another language into the profession. This study examined high school students' perceptions of nursing in order to determine appropriate methods of recruiting students speaking one of these languages. Implications for the design of recruitment campaigns are also discussed.
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Affiliation(s)
- K C Tang
- Australian Centre for Health Promotion, Department of Public Health andCommunity Medicine, University of Sydney
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Sandstead HH, Penland JG, Alcock NW, Dayal HH, Chen XC, Li JS, Zhao F, Yang JJ. Effects of repletion with zinc and other micronutrients on neuropsychologic performance and growth of Chinese children. Am J Clin Nutr 1998; 68:470S-475S. [PMID: 9701162 DOI: 10.1093/ajcn/68.2.470s] [Citation(s) in RCA: 184] [Impact Index Per Article: 7.1] [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: 11/14/2022] Open
Abstract
The knowledge that zinc is essential for growth and neuropsychologic performance and a report of zinc-responsive stunting in Chinese children prompted this project. This article summarizes findings from a 10-wk, double-blind, controlled trial of zinc repletion in 740 urban, 6-9-y-old first graders from low-income families in Chongqing, Qingdao, and Shanghai, People's Republic of China. Treatments were 20 mg Zn alone (Z), 20 mg Zn with micronutrients (ZM), and micronutrients alone (M). The M mixture was based on National Research Council guidelines. Nutrients that might interfere with zinc retention were excluded or given in lower amounts. Main outcomes were changes in neuropsychologic performance and knee height. Hemoglobin, serum ferritin, plasma and hair zinc, and whole blood and hair lead were also measured. Anemia was not common, and serum ferritin concentrations were usually within the range of normal. Mean baseline plasma zinc concentrations were marginal in children from Chongqing and Qingdao and normal in children from Shanghai. After treatment with ZM or M plasma zinc increased. Hair zinc tended to decrease after all treatments. Mean baseline whole blood lead concentrations were slightly below the limit considered excessive for children by the US Centers for Disease Control and Prevention. Neuropsychologic performance and growth were most improved after treatment with ZM. These findings were consistent with the presence of zinc and other micronutrient deficiencies.
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Affiliation(s)
- H H Sandstead
- The University of Texas Medical Branch, Galveston 77555-1109, USA.
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