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Mei Z, Lin YX, Yao PS, Wang F, Huang XF, Lin H, Hu XQ, Lin YQ, Gao L, Kang DZ. [Diagnostic value of high frequency oscillation in localization of type Ⅱ focal cortical dysplasia epilepsy]. Zhonghua Yi Xue Za Zhi 2024; 104:614-617. [PMID: 38389239 DOI: 10.3760/cma.j.cn112137-20231019-00826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Retrospective analysis was conducted on 9 patients with type Ⅱ focal cortical dysplasia (FCD) who underwent stereo-electroencephalography (SEEG) implantation in the Department of Neurosurgery of the First Affiliated Hospital of Fujian Medical University from November 2020 to February 2023. The onset area, onset time, and frequency of high-frequency oscillations (HFO) were analyzed and the correlation of HFOs with interictal, preictal, and ictal periods. SEEG recordings of 80-500 Hz HFOs were observed in both interictal and ictal periods in 9 patients, with 6 patients exhibiting fast ripples (FR) in the range of 250-500 Hz. Surgical resection of the seizure onset area and FR-generating electrodes was performed, and postoperative follow-up for over 2 years indicated Engel I in 5 cases. 6 patients showed continuous discharge during the preictal period, and the distribution index of continuous discharge was positively correlated with seizure frequency. HFOs in the range of 80-500 Hz were present in all four seizure onset patterns during the ictal period. The onset area and FR-emitting electrode were surgically removed in 6 patients with continuous discharge and overlapping HFOs during the preictal period, with 5 cases of Engel I. Type Ⅱ FCD discharges exhibited complexity, high discharge indices, and a close association with HFOs. Compared with the spike wave, the electrode range of HF is more limited, and the incidence of HF before attack is significantly increased, which is closely correlated with the onset area. The simultaneous occurrence of HFO and the spike waves has higher diagnostic value than the individual occurrence, effectively enhancing surgical efficacy.
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Affiliation(s)
- Z Mei
- Department of Neurosurgery, First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
| | - Y X Lin
- Department of Neurosurgery, First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
| | - P S Yao
- Fujian Institute of Brain Disorders and Brain Science, Fuzhou 350005, China
| | - F Wang
- Fujian Clinical Research Center for Neurological Diseases, Fuzhou 350005, China
| | - X F Huang
- Department of Neurosurgery, First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
| | - H Lin
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
| | - X Q Hu
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
| | - Y Q Lin
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
| | - L Gao
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
| | - D Z Kang
- Department of Neurosurgery, National Regional Medical Center, Binhai Campus of the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China
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Du Y, Gu J, Yang Y, Chen Y, Wang Y, Mei Z, Li Y, Li L, Xue D, Wang X, Li D, Hu P, Nie W, Chu N. Efficacy and safety of bicyclol for treating patients with antituberculosis drug-induced liver injury. Int J Tuberc Lung Dis 2024; 28:6-12. [PMID: 38178298 DOI: 10.5588/ijtld.23.0038] [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: 01/06/2024] Open
Abstract
BACKGROUND: Bicyclol was used for treating idiosyncratic acute drug-induced liver injury (DILI) in a phase II trial. This study was aimed at evaluating the efficacy and safety of bicyclol 25 and 50 mg thrice a day (TID) for treating acute DILI caused by anti-TB drugs in the light of the trial results.METHODS: We analysed clinical data of patients with TB drug-induced DILI in the trial database. The primary endpoint was reduction in serum alanine aminotransferase (ALT) levels after 4 weeks of treatment compared to baseline.RESULTS: Overall, 148 patients were included, with respectively 48, 52 and 48 patients included in the control (456 mg polyene phosphatidylcholine TID), high-dose (50 mg bicyclol TID) and low-dose (25 mg bicyclol TID) groups. ALT levels decreased by respectively â-"149.0 (IQR â-"299.3 to â-"98.3 (), â-"225.5 (IQR â-"309.3 to â-"181.8 ) and â-"242.5 (IQR â-"364.8 to â-"153.8) U/L in the control, high-dose and low-dose groups (P < 0.001). The ALT normalisation rates at weeks 1, 2, 4, 6 and 8 were higher in the high- and low-dose groups, while adverse events and serious adverse events were similar across groups.CONCLUSIONS: Bicyclol (25 and 50 mg TID) is effective and safe in treating anti-TB DILI, and bicyclol 50 mg TID showed higher efficacy.
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Affiliation(s)
- Y Du
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing
| | - J Gu
- Department of Tuberculosis, Shanghai Pulmonary Hospital, Shanghai
| | - Y Yang
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing
| | - Y Chen
- Department of Tuberculosis, Henan Infectious Diseases Hospital (The Sixth People's Hospital of Zhengzhou), Zhengzhou
| | - Y Wang
- Department of Tuberculosis, The First Affiliated Hospital of Xinxiang Medical University, Weihui
| | - Z Mei
- Department of Tuberculosis, Tianjin Haihe Hospital, Tianjin
| | - Y Li
- Department of Infectious Diseases, The Second Xiangya Hospital of Central South University, Changsha
| | - L Li
- Department of Infectious Disease, The First Affiliated Hospital of University of Science and Technology of China, Hefei
| | - D Xue
- Department of Infectious Diseases, Shanghai Putuo District Central Hospital, Shanghai
| | - X Wang
- Liver Disease Center of Naval 905 Hospital, Shanghai
| | - D Li
- Department of Hepatobiliary Disease, 900th hospital of PLA's Joint Logistics Support Force, Fuzhou
| | - P Hu
- Department of Infectious Diseases, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - W Nie
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing
| | - N Chu
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing
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Wu Q, Pan C, Zhou Y, Wang S, Xie L, Zhou W, Ding L, Chen T, Qian J, Su R, Gao X, Mei Z, Qiao Y, Yin S, Wu Y, Wang J, Zhou L, Zheng S. Targeting neuropilin-1 abolishes anti-PD-1-upregulated regulatory T cells and synergizes with 4-1BB agonist for liver cancer treatment. Hepatology 2023; 78:1402-1417. [PMID: 36811396 DOI: 10.1097/hep.0000000000000320] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 01/09/2023] [Indexed: 02/24/2023]
Abstract
BACKGROUND AIMS Regulatory T cells (Tregs) are an obstacle to PD-1 blockade-mediated antitumor efficacy. However, the behaviors of Tregs response to anti-PD-1 in HCC and the characteristics of Tregs tissue adaptation from peripheral lymphoid tissues to the tumor are still unclear. APPROACH RESULTS Here, we determine that PD-1 monotherapy potentially augments the accumulation of tumor CD4 + Tregs. Mechanistically, anti-PD-1 mediates Tregs proliferation in lymphoid tissues rather than in the tumor. Increased peripheral Tregs burden replenishes intratumoral Tregs, raising the ratio of intratumoral CD4 + Tregs to CD8 + T cells. Subsequently, single-cell transcriptomics revealed that neuropilin-1 (Nrp-1) supports Tregs migration behavior, and the genes of Crem and Tnfrsf9 regulate the behaviors of the terminal suppressive Tregs. Nrp-1 + 4-1BB - Tregs stepwise develop to the Nrp-1 - 4-1BB + Tregs from lymphoid tissues into the tumor. Moreover, Treg-restricted Nrp1 depletion abolishes anti-PD-1-upregulated intratumoral Tregs burden and synergizes with the 4-1BB agonist to enhance the antitumor response. Finally, a combination of the Nrp-1 inhibitor and the 4-1BB agonist in humanized HCC models showed a favorable and safe outcome and evoked the antitumor effect of the PD-1 blockade. CONCLUSION Our findings elucidate the potential mechanism of anti-PD-1-mediated intratumoral Tregs accumulation in HCC and uncover the tissue adaptation characteristics of Tregs and identify the therapeutic potential of targeting Nrp-1 and 4-1BB for reprogramming the HCC microenvironment.
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Affiliation(s)
- Qinchuan Wu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
| | - Caixu Pan
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
| | - Yuan Zhou
- Department of Thoracic Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Shuai Wang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Liver Transplantation, Shulan Hospital, Zhejiang Shuren University School of Medicine, Hangzhou, China
| | - Liting Xie
- Department of Ultrasound, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Wuhua Zhou
- Department of Hepatobiliary Pancreatic Surgery, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Limin Ding
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
| | - Tianchi Chen
- Department of vascular surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Junjie Qian
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
| | - Rong Su
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
| | - Xingxing Gao
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
| | - Zhibin Mei
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
| | - Yiting Qiao
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
| | - Shengyong Yin
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
| | - Yi Wu
- Lyvgen Biopharma, Shanghai, China
| | | | - Lin Zhou
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
- NHFPC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment of Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China
- Division of Hepatobiliary and Pancreatic Surgery, Department of Liver Transplantation, Shulan Hospital, Zhejiang Shuren University School of Medicine, Hangzhou, China
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Mei Z, Gao X, Pan C, Wu Q, Wang S, Qian J, Xu Z, Xu K, Zhou L, Zhen S. Lenvatinib enhances antitumor immunity by promoting the infiltration of TCF1 + CD8 + T cells in HCC via blocking VEGFR2. Cancer Sci 2023; 114:1284-1296. [PMID: 36609997 PMCID: PMC10067412 DOI: 10.1111/cas.15719] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 12/11/2022] [Accepted: 12/20/2022] [Indexed: 01/09/2023] Open
Abstract
Lenvatinib is the favorable treatment for advanced hepatocellular carcinoma (HCC), and it is currently undergoing phase III clinical trials. However, the specific effects of lenvatinib on PD1+ CD8+ T cells in HCC microenvironment have not been systematically studied. Here, we established an orthotopic hepa1-6 mouse model treated with lenvatinib to investigate CD8+ T cells' role in the tumor and spleen. We found an increasing proportion of TCF-1+ in PD1+ CD8+ T cells and proliferation of PD1+ CD8+ T cells after lenvatinib treatment. Meanwhile, lenvatinib treatment upregulated the expression of granzyme B on PD1+ CD8+ T cells both in vitro and in vivo. Lenvatinib activated the endogenous mTOR pathway of exhausted CD8+ T cells, and mTOR pathway blockade eliminated the antitumor effect of lenvatinib and function of PD1+ CD8+ T cells. The effects of the mTOR pathway on PD1+ CD8+ T cells after lenvatinib treatment were mediated by VEGFR2 inhibition. Overall, our work provides insight into the mechanism of lenvatinib's antitumor efficacy through exhausted CD8+ T cells in HCC treatment.
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Affiliation(s)
- Zhibin Mei
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.,NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.,Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China.,Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang, China
| | - Xingxing Gao
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.,NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.,Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China.,Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang, China
| | - Caixu Pan
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.,NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.,Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China.,Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang, China
| | - Qinchuan Wu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.,NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.,Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China.,Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang, China
| | - Shuai Wang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.,NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.,Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China.,Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang, China
| | - Junjie Qian
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.,NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.,Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China.,Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang, China
| | - Zhentian Xu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.,NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.,Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China.,Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang, China
| | - Kangdi Xu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.,NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.,Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China.,Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang, China
| | - Lin Zhou
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.,NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.,Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China.,Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang, China
| | - Shushen Zhen
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, China.,NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou, China.,Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, China.,Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang, China
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Gao X, Huang H, Pan C, Mei Z, Yin S, Zhou L, Zheng S. Disulfiram/Copper Induces Immunogenic Cell Death and Enhances CD47 Blockade in Hepatocellular Carcinoma. Cancers (Basel) 2022; 14:cancers14194715. [PMID: 36230638 PMCID: PMC9564202 DOI: 10.3390/cancers14194715] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 09/23/2022] [Accepted: 09/24/2022] [Indexed: 11/16/2022] Open
Abstract
Some chemotherapeutic agents have been found to enhance antitumor immunity by inducing immunogenic cell death (ICD). The combination of disulfiram (DSF) and copper (Cu) has demonstrated anti-tumor effects in a range of malignancies including hepatocellular carcinoma (HCC). However, the potential of DSF/Cu as an ICD inducer and whether it can enhance the efficacy of the immune checkpoint blockade in HCC remains unknown. Here, we showed that DSF/Cu-treated HCC cells exhibited characteristics of ICD in vitro, such as calreticulin (CRT) exposure, ATP secretion, and high mobility group box 1 (HMGB1) release. DSF/Cu-treated HCC cells elicited significant immune memory in a vaccination assay. DSF/Cu treatment promoted dendritic cell activation and maturation. The combination of DSF/Cu and CD47 blockade further facilitated DC maturation and subsequently enhanced CD8+ T cell cytotoxicity. Mechanically, DSF/Cu promoted the nuclear accumulation and aggregation of nuclear protein localization protein 4 (NPL4) to inhibit the ubiquitin-proteasome system; thus, inducing endoplasmic reticulum (ER) stress. The inhibition of NPL4 induced ICD-associated damage-associated molecular patterns. Collectively, our findings demonstrated that DSF/Cu-induced ICD-mediated immune activation in HCC enhanced the efficacy of CD47 blockade.
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Affiliation(s)
- Xingxing Gao
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences, Hangzhou 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou 310003, China
| | - Hechen Huang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences, Hangzhou 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou 310003, China
| | - Caixu Pan
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences, Hangzhou 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou 310003, China
| | - Zhibin Mei
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences, Hangzhou 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou 310003, China
| | - Shengyong Yin
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences, Hangzhou 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou 310003, China
| | - Lin Zhou
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences, Hangzhou 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou 310003, China
- Correspondence: (L.Z.); (S.Z.); Tel.: +86-571-87236626 (L.Z.); +86-571-87236570 (S.Z.)
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- NHC Key Laboratory of Combined Multi-Organ Transplantation, Hangzhou 310003, China
- Key Laboratory of the Diagnosis and Treatment of Organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment for Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences, Hangzhou 310003, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou 310003, China
- Correspondence: (L.Z.); (S.Z.); Tel.: +86-571-87236626 (L.Z.); +86-571-87236570 (S.Z.)
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Deng H, Khan MA, Liu X, Fu J, Mei Z. Identification of SCAR markers for genetic authentication of Dendrobium nobile Lindl. BRAZ J BIOL 2022; 82:e260394. [PMID: 35674573 DOI: 10.1590/1519-6984.260394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 05/16/2022] [Indexed: 11/21/2022] Open
Abstract
Dendrobium nobile Lindl. is an orcid plant with important medicinal values. This is a colourful houseplant, and also a popular herb in traditional Chinese medicine (TCM). The variants of this plant from different geographic regions might be high, and in this study, we aimed to develop specific sequence characterized amplified region (SCAR) markers for the identification of specific variant of this plant. Different cultivars of D. nobile were collected from nine different places of China, and one cultivar from Myanmar. DNA materials were extracted from the plant samples, random amplified polymorphic DNA (RAPD) were developed, cloned and sequenced for the development of SCAR markers. We have developed four SCAR markers, which are specific to the cultivar from Luzhou China, and clearly distinguishable (genetically) from other cultivars. These SCAR markers are deposited in GenBank (accession number MZ417502, MZ484089, MZ417504 and MZ417505). Four SCAR markers for D. nobile are effective molecular technique to genetically identify the different cultivars or species, and this method is applicable for genetic characterization and identification of other plant species too.
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Affiliation(s)
- H Deng
- Southwest Medical University, The Research Center for Preclinical Medicine, Luzhou, Sichuan, China
| | - M A Khan
- Southwest Medical University, The Research Center for Preclinical Medicine, Luzhou, Sichuan, China
| | - X Liu
- Southwest Medical University, The Research Center for Preclinical Medicine, Luzhou, Sichuan, China
| | - J Fu
- Southwest Medical University, The Research Center for Preclinical Medicine, Luzhou, Sichuan, China
| | - Z Mei
- Southwest Medical University, The Research Center for Preclinical Medicine, Luzhou, Sichuan, China
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Pan C, Wu Q, Wang S, Mei Z, Zhang L, Gao X, Qian J, Xu Z, Zhang K, Su R, Guo D, Zhou L, Zheng S. Combination with Toll-like receptor 4 (TLR4) agonist reverses GITR agonism mediated M2 polarization of macrophage in Hepatocellular carcinoma. Oncoimmunology 2022; 11:2073010. [PMID: 35558158 PMCID: PMC9090298 DOI: 10.1080/2162402x.2022.2073010] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The glucocorticoid-induced tumor necrosis factor receptor (GITR) agonistic antibody (DTA-1) has been proved to elicit robust immune response in various kinds of tumors. However, only a few of the HCC patients could benefit from it, and the mechanism of DTA-1 resistance remains unknown. Here, we measured GITR expression in different immunocytes in HCC microenvironment, and we observed that tumor-infiltrating regulatory T cells (Ti-Tregs) significantly expressed GITR, which were associated with poor prognosis. Meanwhile, we analyzed the variation of tumor-infiltrating immune components and associated inflammation response after DTA-1 treatment in orthotopic liver cancer model of mice. Surprisingly, DTA-1 treatment reduced the infiltration of Tregs but failed to activate CD8+ T cells and elicit antitumor efficacy. In particular, DTA-1 treatment enforced alternative M2 polarization of macrophage, and macrophage depletion could enhance DTA-1-mediated antitumor efficacy in HCC. Mechanistically, macrophage M2 polarization attributed to the IL-4 elevation induced by Th2 immune activation in the treatment of DTA-1, resulting in DTA-1 resistance. Furthermore, Toll-like receptor 4 (TLR4) agonist could diminish the macrophage (M2) polarization and reverse the M2-mediated DTA-1 resistance, eliciting robust antitumor effect in HCC. Our finding demonstrated that the TLR4 agonist synergized with DTA-1 was a potential strategy for HCC treatment.
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Affiliation(s)
- Caixu Pan
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Qinchuan Wu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Shuai Wang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Zhibin Mei
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Lele Zhang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Xingxing Gao
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Junjie Qian
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Zhentian Xu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Ke Zhang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Rong Su
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Danjing Guo
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Lin Zhou
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China
- NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, Zhejiang Province, China
- Key Laboratory of the diagnosis and treatment of organ Transplantation, Research Unit of Collaborative Diagnosis and Treatment For Hepatobiliary and Pancreatic Cancer, Chinese Academy of Medical Sciences (2019RU019), Hangzhou, Zhejiang Province, China
- Key Laboratory of Organ Transplantation, Research Center for Diagnosis and Treatment of Hepatobiliary Diseases, Hangzhou, Zhejiang Province, China
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Campbell E, Alfaro-Shigueto J, Aliaga-Rossel E, Beasley I, Briceño Y, Caballero S, da Silva VMF, Gilleman C, Gravena W, Hines E, Shahnawaz Khan M, Khan U, Kreb D, Mangel JC, Marmontel M, Mei Z, Mintzer VJ, Mosquera-Guerra F, Oliveira-da_Costa MO, Paschoalini Frias M, Paudel S, Sinha RK, Smith BD, Turvey ST, Utreras V, Van Damme PA, Wang D, Sayuri Whitty T, Thurstan RH, Godley BJ. Challenges and priorities for river cetacean conservation. ENDANGER SPECIES RES 2022. [DOI: 10.3354/esr01201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Ni Q, Mei Z, Li C, Li J, Liu J, Liu W, Huo J, Wang Q. Realization of an Optical Thermometer via Structural Confinement and Energy Transfer. Inorg Chem 2021; 60:19315-19327. [PMID: 34851618 DOI: 10.1021/acs.inorgchem.1c03126] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The influence of temperature on a variety of physiological or chemical processes has generated considerable interest, and recently noninvasive lanthanide-incorporated optical thermometers have been considered as promising candidates for monitoring its changes at different scales. Herein, a novel Bi3+-activated Sr3-xGdxGaO4+xF1-x phosphor with tunable color has been constructed by a cooperative cation-anion substitution strategy with to the replacement of [Sr2+-F-] by [Gd3+-O2-]. When x = 0, the sample Sr3GaO4F/Bi3+ possesses a peak wavelength at 438 nm, and this value will shift to 470 nm if x is equal to 1 (Sr2GdGaO5/Bi3+). In addition, photoluminescence tuning from blue to red has been realized successfully by an efficient Bi3+ → Eu3+ energy migration model in Sr2.6Gd0.4GaO4.4F0.6 samples. The specific Bi3+ → Eu3+ energy transfer has been explained by dipole-dipole interactions derived from a model of the Dexter pathway. Intriguingly, the two dopants (a blue signal from Bi3+ and a red signal from Eu3+) possess different thermal responses to increasing temperature. Accordingly, the intensity ratio values are sensitive to the temperature changes. The energy level cross relaxation causes the quenching effect of Bi3+, and the multi-phonon de-excitation mode leads to the thermal quenching of Eu3+. At room temperature (298 K), the determined maximum relative sensitivity (Sr) is 1.27% K-1. Moreover, the absolute sensitivity (Sa) is 0.067 K-1 since the temperature is elevated to 523 K. The collected results are superior to most of the reported optical thermometry materials.
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Affiliation(s)
- Quwei Ni
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Zhibin Mei
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Chunxia Li
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Jieying Li
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Jiachun Liu
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Wanqiang Liu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China
| | - Jiansheng Huo
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Qianming Wang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China.,School of Chemistry, Guangzhou Key Laboratory of Analytical Chemistry for Biomedicine, South China Normal University, Guangzhou 510006, PR China
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10
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Mei Z, Ni Q, Li M, Li J, Huo J, Liu W, Wang Q. Extension of Spectral Shift Controls from Equivalent Substitution to an Energy Migration Model Based on Eu 2+/Tb 3+-Activated Ba 4-xSr xGd 3-xLu xNa 3(PO 4) 6F 2 Phosphors. Inorg Chem 2021; 60:16507-16517. [PMID: 34647450 DOI: 10.1021/acs.inorgchem.1c02340] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Single-phase phosphors with tunable emission colors are crucial to develop high-performance white light-emitting diodes since they are valuable to improve the energy efficiency, color rendering index, and correlated color temperature. Most of the studies have been conducted to control the spectral shifts via a polyhedral distortion or chemical unit cosubstitution strategy. The combination of host optimization and dopant activator design in a single-phase phosphor system is very rare. Herein, a partial substitution strategy of [Ba2+-Gd3+] by [Sr2+-Lu3+] has been employed in Ba4-xSrxGd3-x-yLuxNa3(PO4)6F2/5% Eu2+ (x = 0-0.40) phosphors. Also, the energy migration from Eu2+ to Tb3+ ions has been investigated in as-prepared samples. Consequently, the emitted signal is observed to shift from 470 to 575 nm derived from equivalent substitutions, which is attributed to specific performance by the emission profile of Eu2+, and such results are closely related to splitting of the crystal field and energy transfer among various luminescent centers. Moreover, the tunable yellowish-green emitting material has been assembled by incorporating ion pairs (Eu2+ → Tb3+) into the Ba3.85Sr0.15Gd2.85Lu0.15Na3(PO4)6F2, and their relative ratios are varied. The corresponding Eu2+ → Tb3+ energy migration process is assigned to be the dipole-quadrupole interaction by the Inokuti-Hirayama model. This work provides rational guidance for the design and discovery of new products with tunable emission colors, originating from the cosubstitution strategy and energy conversion model.
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Affiliation(s)
- Zhibin Mei
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Quwei Ni
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Mengqing Li
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Jieying Li
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Jiansheng Huo
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
| | - Wanqiang Liu
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, P. R. China
| | - Qianming Wang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, School of Chemistry, South China Normal University, Guangzhou 510006, PR China
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Abstract
Nonalcoholic fatty liver disease (NAFLD) is often accompanied by systemic metabolic disorders such as hyperglycemia, insulin resistance, and obesity. The relationship between NAFLD and systemic metabolic disorders has been well reviewed before, however, the metabolic changes that occur in hepatocyte itself have not been discussed. In NAFLD, many metabolic pathways have undergone significant changes in hepatocyte, such as enhanced glycolysis, gluconeogenesis, lactate production, tricarboxylic acid (TCA) cycle, and decreased ketone body production, mitochondrial respiration, and adenosine triphosphate (ATP) synthesis, which play a role in compensating or exacerbating disease progression, and there is close and complex interaction existed between these metabolic pathways. Among them, some metabolic pathways can be the potential therapeutic targets for NAFLD. A detailed summary of the metabolic characteristics of hepatocytes in the context of NAFLD helps us better understand the pathogenesis and outcomes of the disease.
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Affiliation(s)
- Qianrang Lu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
| | - Xinyao Tian
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
| | - Hao Wu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
| | - Jiacheng Huang
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
| | - Mengxia Li
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
| | - Zhibin Mei
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
| | - Lin Zhou
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
| | - Haiyang Xie
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,NHC Key Laboratory of Combined Multi-organ Transplantation, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery & Liver Transplantation, Shulan (Hangzhou) Hospital, Hangzhou, China
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12
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Xiao Y, Wang H, Tang Y, Yan J, Cao L, Chen Z, Shao Z, Mei Z, Jiang Z. Increased risk of diabetes in cancer survivors: a pooled analysis of 13 population-based cohort studies. ESMO Open 2021; 6:100218. [PMID: 34303930 PMCID: PMC8327494 DOI: 10.1016/j.esmoop.2021.100218] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Diabetes is considered as an established risk factor for cancer development. However, the link between diabetes among cancer survivors remains inconclusive. The hypothesis of this study was to assess the hazard ratio (HR) of incidence of diabetes in cancer survivors compared with the HR in the general population. PATIENTS AND METHODS A comprehensive literature search was performed in PubMed, Embase, and the Cochrane Library from database inception to 15 December 2020 for population-based cohort studies. Summary effect estimates were combined using random-effects models. We also performed subgroup analyses to test sources of heterogeneity and the stability of the results stratified by various study and participant characteristics. RESULTS Thirteen population-based cohort studies involving 1 686 595 participants were analyzed. The HR for the development of diabetes in cancer survivors was 1.39 [95% confidence interval (CI) 1.29-1.50; I2 = 82.3%; P < 0.001] compared with that in noncancer controls, among which survivors of hematological, gynecologic, breast, colorectal and urinary tract cancer (all P < 0.05) showed consistent significant results, whereas no significant increased risk was observed for other cancer types. The effects were more prominent in populations of shorter cancer survival duration (<1 year) (HR 2.09, 95% CI 1.32-3.32; P = 0.009). Moreover, cancer survivors with a longer follow-up period (>10 years) had a relatively higher risk of diabetes (HR 1.54, 95% CI 1.34-1.77) than those with a shorter follow-up period. CONCLUSIONS In this large pooled analysis of population-based cohorts, evidence supports the hypothesis that the risk of developing diabetes is increased in cancer survivors compared with the general population. We should interpret the results with caution for considerable interstudy heterogeneity. However, health policy makers should take this as a challenge for the early prevention and effective intervention of diabetes.
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Affiliation(s)
- Y Xiao
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology, Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - H Wang
- Department of Colorectal Surgery, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Y Tang
- National Clinical Research Center for Metabolic Diseases, Key Laboratory of Diabetes Immunology, Ministry of Education, and Department of Metabolism and Endocrinology, The Second Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - J Yan
- Department of Endocrinology, The First People's Hospital of Pingjiang, Yueyang City, Hunan Province, China
| | - L Cao
- Department of Perioperative Research Center of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Z Chen
- Department of Perioperative Research Center of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Z Shao
- Department of General Surgery, Changhai Hospital, Naval Medical University, Shanghai, China.
| | - Z Mei
- Department of Anorectal Surgery, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Anorectal Disease Institute of Shuguang Hospital, Shanghai, China.
| | - Z Jiang
- Department of Perioperative Research Center of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
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Hata A, Hata M, Guo Y, Mei Z, Manafi A, Mahgoub B, Li D, Banerjee A, Yoshino I, Barker T, Krupnick A. Fibroblast Expression of Thy-1 Protects Grafts from Chronic Lung Allograft Dysfunction. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.1771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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14
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Petringa G, Pandola L, Agosteo S, Catalano R, Colautti P, Conte V, Cuttone G, Fan K, Mei Z, Rosenfeld A, Selva A, Cirrone GAP. Monte Carlo implementation of new algorithms for the evaluation of averaged-dose and -track linear energy transfers in 62 MeV clinical proton beams. ACTA ACUST UNITED AC 2020; 65:235043. [DOI: 10.1088/1361-6560/abaeb9] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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15
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Mei Z, Zhang Y, Gee AP, Gee A, Mei Z. Stability of adenoviral vectors used in gene therapy. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Ramos C, Torrano V, Bilgi M, Gerken C, Dakhova O, Mei Z, Wu M, Grilley B, Gee A, Rooney C, Dotti G, Savoldo B, Heslop H, Brenner M. CD30-CHIMERIC ANTIGEN RECEPTOR (CAR) T CELLS FOR THERAPY OF HODGKIN LYMPHOMA (HL). Hematol Oncol 2019. [DOI: 10.1002/hon.125_2629] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- C.A. Ramos
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - V. Torrano
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - M. Bilgi
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - C. Gerken
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - O. Dakhova
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - Z. Mei
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - M. Wu
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - B. Grilley
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - A.P. Gee
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - C.M. Rooney
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - G. Dotti
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - B. Savoldo
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - H.E. Heslop
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
| | - M.K. Brenner
- Center for Cell and Gene Therapy; Baylor College of Medicine, Texas Children's Hospital & Houston Methodist Hospital; Houston United States
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17
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Guo Y, Wang Q, Li D, Manafi A, Mei Z, Onyema O, Gelman A, Kreisel D, Krupnick A. Microbiome Dependent Regulatory T Cell Generation Correlates with Acute and Chronic Lung Allograft Rejection in a Murine Model. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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18
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Xiong L, Barrett AN, Hua R, Ho SSY, Jun L, Chan KCA, Mei Z, Choolani M. Non-invasive prenatal testing for fetal inheritance of maternal β
-thalassaemia mutations using targeted sequencing and relative mutation dosage: a feasibility study. BJOG 2018; 125:461-468. [DOI: 10.1111/1471-0528.15045] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/20/2017] [Indexed: 11/26/2022]
Affiliation(s)
- L Xiong
- Department of Obstetrics and Gynaecology; Yong Loo Lin School of Medicine; National University of Singapore; Singapore
- Department of Gynaecology & Obstetrics; Nanfang Hospital; Southern Medical University; Guangzhou China
| | - AN Barrett
- Department of Obstetrics and Gynaecology; Yong Loo Lin School of Medicine; National University of Singapore; Singapore
| | - R Hua
- Department of Gynaecology & Obstetrics; Nanfang Hospital; Southern Medical University; Guangzhou China
| | - SSY Ho
- Department of Laboratory Medicine; Molecular Diagnosis Centre; National University Hospital; Singapore
| | - L Jun
- Department of Obstetrics and Gynaecology; Yong Loo Lin School of Medicine; National University of Singapore; Singapore
| | - KCA Chan
- Centre for Research into Circulating Fetal Nucleic Acids; Li Ka Shing Institute of Health Sciences; Chinese University of Hong Kong; Shatin New Territories Hong Kong
| | - Z Mei
- Department of Gynaecology & Obstetrics; Nanfang Hospital; Southern Medical University; Guangzhou China
| | - M Choolani
- Department of Obstetrics and Gynaecology; Yong Loo Lin School of Medicine; National University of Singapore; Singapore
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Dai Y, Yan Z, Jia L, Zhang S, Gao L, Wei X, Mei Z, Liu X. The composition, localization and function of low-temperature-adapted microbial communities involved in methanogenic degradations of cellulose and chitin from Qinghai-Tibetan Plateau wetland soils. J Appl Microbiol 2016; 121:163-76. [PMID: 27123875 DOI: 10.1111/jam.13164] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 12/26/2015] [Accepted: 01/18/2016] [Indexed: 02/05/2023]
Affiliation(s)
- Y. Dai
- Key Laboratory of Environmental and Applied Microbiology; Environmental Microbiology Key Laboratory of Sichuan Province; Chengdu Institute of Biology; Chinese Academy of Sciences; Sichuan China
| | - Z. Yan
- Key Laboratory of Environmental and Applied Microbiology; Environmental Microbiology Key Laboratory of Sichuan Province; Chengdu Institute of Biology; Chinese Academy of Sciences; Sichuan China
| | - L. Jia
- The State Key Laboratory of Biotherapy; West China Hospital; Sichuan University; Sichuan China
| | - S. Zhang
- Key Laboratory of Environmental and Applied Microbiology; Environmental Microbiology Key Laboratory of Sichuan Province; Chengdu Institute of Biology; Chinese Academy of Sciences; Sichuan China
| | - L. Gao
- Department of Agricultural Engineering; Chongqing Academy of Agricultural Sciences; Chongqing China
| | - X. Wei
- Department of Agricultural Engineering; Chongqing Academy of Agricultural Sciences; Chongqing China
| | - Z. Mei
- Center of Agricultural Engineering; Biogas Institute of Ministry of Agriculture; Chengdu China
| | - X. Liu
- Key Laboratory of Environmental and Applied Microbiology; Environmental Microbiology Key Laboratory of Sichuan Province; Chengdu Institute of Biology; Chinese Academy of Sciences; Sichuan China
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20
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Mei Z, Zhang Y, Cui L. 152P Association between statin use and cancer outcomes: a systematic review and meta-analysis of 92 cohorts including 703843 individuals. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Liu Y, Wang G, Yang Y, Mei Z, Liang Z, Cui A, Wu T, Liu CY, Cui L. Increased TEAD4 expression and nuclear localization in colorectal cancer promote epithelial-mesenchymal transition and metastasis in a YAP-independent manner. Oncogene 2015; 35:2789-800. [PMID: 26387538 DOI: 10.1038/onc.2015.342] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 07/20/2015] [Accepted: 07/24/2015] [Indexed: 12/22/2022]
Abstract
Dysregulation of the Hippo pathway occurs in a variety of cancers and often correlates with a poor prognosis. To further explore the potential role of Hippo pathway dysregulation in tumor development and progression, we investigated its downstream transcription factor TEAD4 in colorectal cancer (CRC). Increased expression and nuclear localization of TEAD4 were found in a significant portion of CRC tissues, in association with metastasis and a poor prognosis. In CRC cells, TEAD4 knockdown induced the mesenchymal-epithelial transition and decreased cell mobility in vitro and metastasis in vivo. Microarray analysis revealed that TEAD4 promoted cell adhesion and upregulated the epithelial-mesenchymal transition-related transcriptome in CRC cells. Vimentin was identified as a new direct target gene mediating TEAD4 function in CRC cells, whereby forced vimentin expression markedly reversed TEAD4-knockdown-induced cell morphological changes and decreased mobility. Interestingly, rescued expression of both WT TEAD4 and a Y429H mutant can reverse the mesenchymal-epithelial transition and increase vimentin expression, cell mobility and metastatic potential in TEAD4-knockdown CRC cells. The discrepant expression of YAP and TEAD4 in CRC tissues, the rescue ability of TEAD4 mutant defect in YAP binding and no effect on vimentin expression by YAP knockdown in CRC cells, all implicated a YAP-independent manner of TEAD4 function in CRC. Furthermore, vimentin positively correlated and CDH1 reversely correlated with the level of TEAD4 in CRC tissues and xenograft tumors. Our results suggest that TEAD4 nuclear expression can serve as a biomarker for CRC progression and poor prognosis. The transcription factor TEAD4 regulates a pro-metastasis transcription program in a YAP-independent manner in CRC, thus providing a novel mechanism of TEAD4 transcriptional regulation and its oncogenic role in CRC, independently of the Hippo pathway.
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Affiliation(s)
- Y Liu
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - G Wang
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - Y Yang
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China.,Center for Medical Research, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Z Mei
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - Z Liang
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - A Cui
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - T Wu
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - C-Y Liu
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
| | - L Cui
- Department of Colorectal and Anal Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.,Shanghai Colorectal Cancer Research Center, Shanghai, China
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22
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Mei Z, Liu Y, Liu C, Cui L. Response to comment on 'Tumour-infiltrating inflammation and prognosis in colorectal cancer: systematic review and meta-analysis'. Br J Cancer 2014; 111:2372-3. [PMID: 25349969 PMCID: PMC4264426 DOI: 10.1038/bjc.2014.285] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Affiliation(s)
- Z Mei
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Y Liu
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - C Liu
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - L Cui
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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Zhu J, Zhu H, Mei Z, Zhang L, Jin C, Ran L, Zhou K, Yang W. High-intensity focused ultrasound ablation: an effective and safe treatment for secondary hypersplenism. Br J Radiol 2014; 87:20140374. [PMID: 25141274 DOI: 10.1259/bjr.20140374] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
OBJECTIVE Hypersplenism is a common disease. The conventional treatment is splenectomy and partial splenic embolization; however, both of them have high complication rates and technical defects. Therefore, safer and more effective techniques should be considered for the treatment of hypersplenism. High-intensity focused ultrasound (HIFU) may provide an effective and safe way for treatment of hypersplenism. Therefore, we conducted this study to assess the safety and efficacy of HIFU in treatment of secondary hypersplenism. METHODS A total of 28 patients who suffered from secondary hypersplenism were treated with HIFU ablation. All patients who underwent HIFU were closely followed-up over a year. MRI scan was performed, and the spleens were observed. Blood counts and liver function tests were also carried out. RESULTS In the follow-up process, the levels of white blood cells and platelets in the blood after HIFU were significantly higher than those before HIFU, liver function also improved after HIFU treatment. In addition, the symptoms were ameliorated significantly or even disappeared. The MRI showed that the ablation area had turned into a non-perfused volume, and after 12 months of HIFU ablation, the ablated area shrank evidently; the sunken spleen formed a lobulated shape and the splenic volume decreased. CONCLUSION HIFU ablation is a safe, effective and non-invasive approach for secondary hypersplenism. ADVANCES IN KNOWLEDGE For the first time we used HIFU ablation to treat secondary hypersplenism. It not only expands indications of HIFU but also provides better choice for the treatment of secondary hypersplenism.
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Affiliation(s)
- J Zhu
- 1 State Key Laboratory of Ultrasound Engineering in Medicine Co-founded by Chongqing and the Ministry of Science and Technology, Chongqing Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, China
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24
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Mei Z, Liu Y, Liu C, Cui A, Liang Z, Wang G, Peng H, Cui L, Li C. Tumour-infiltrating inflammation and prognosis in colorectal cancer: systematic review and meta-analysis. Br J Cancer 2014; 110:1595-605. [PMID: 24504370 PMCID: PMC3960618 DOI: 10.1038/bjc.2014.46] [Citation(s) in RCA: 222] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 01/02/2014] [Accepted: 01/08/2014] [Indexed: 12/12/2022] Open
Abstract
Background: The role of tumour-infiltrating inflammation in the prognosis of patients with colorectal cancer (CRC) has not been fully evaluated. The primary objective of our meta-analysis was to determine the impact of tumour-infiltrating inflammation on survival outcomes. Methods: Ovid MEDLINE and EMBASE were searched to identify studies reporting the prognostic significance of tumour-infiltrating inflammation for patients with CRC. The primary outcome measures were overall survival (OS), cancer-specific survival (CS) and disease-free survival (DFS). Results: A total of 30 studies involving 2988 patients were identified. Studies were subdivided into those considering the associations between CRC survival and generalised tumour inflammatory infiltrate (n=12) and T lymphocyte subsets (n=18). Pooled analyses revealed that high generalised tumour inflammatory infiltrate was associated with good OS (HR, 0.59; 95% CI, 0.48–0.72), CS (HR, 0.40; 95% CI, 0.27–0.61) and DFS (HR, 0.72; 95% CI, 0.57–0.91). Stratification by location and T lymphocyte subset indicated that in the tumour centre, CD3+, CD8+ and FoxP3+ infiltrates were not statistically significant prognostic markers for OS or CS. In the tumour stroma, high CD8+, but not CD3+ or FoxP3+ cell infiltrates indicated increased OS. Furthermore, high CD3+ cell infiltrate was detected at the invasive tumour margin in patients with good OS and DFS; and high CCR7+ infiltrate was also indicated increased OS. Conclusion: Overall, high generalised tumour inflammatory infiltrate could be a good prognostic marker for CRC. However, significant heterogeneity and an insufficient number of studies underscore the need for further prospective studies on subsets of T lymphocytes to increase the robustness of the analyses.
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Affiliation(s)
- Z Mei
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Y Liu
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - C Liu
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - A Cui
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - Z Liang
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - G Wang
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - H Peng
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - L Cui
- Department of Colorectal Surgery, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
| | - C Li
- Department of Biological Psychiatry, Shanghai Mental Health Centre, Shanghai Jiao Tong University School of Medicine, Shanghai, People's Republic of China
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25
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Hanley P, Mei Z, Klis M, Zhao Y, Li W, Durett A, Rice B, Cabreira-Hansen M, Savitz S, Gee A. Clinical-scale expansion of human bone marrow-derived mesenchymal stromal cells to treat patients after ischemic stroke. Cytotherapy 2013. [DOI: 10.1016/j.jcyt.2013.01.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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26
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Zixiu W, Mei Z, Xiaofei S, Changjie R, Peiling C. Effects of atorvastatin application on atrial high rate episodes in dual-chamber paced patients with hypertension. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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27
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Jingquan Z, Wei Z, Mei Z, Cheng Z. Assessment of the left ventricular systolic function in different sites of origin of ventricular tachycardia in dogs: a simultaneous Doppler echocardiography and cardiac catheterisation study. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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28
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Lu Q, Jing Z, Zhao Z, Bao J, Feng X, Feng R, Mei Z. Endovascular Stent Graft Repair of Aortic Dissection Type B Extending to the Aortic Arch. Eur J Vasc Endovasc Surg 2011; 42:456-63. [DOI: 10.1016/j.ejvs.2011.06.050] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Accepted: 06/28/2011] [Indexed: 11/15/2022]
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29
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Ramos CA, Savoldo B, Liu E, Bollard CM, Mims MP, Keating MJ, Gee AP, Mei Z, Rooney CM, Heslop HE, Brenner MK, Dotti G. Effect of a costimulatory endodomain on the performance of T cells expressing CD19-directed chimeric antigen receptors (CARs) in subjects with relapsed/refractory B-cell malignancies. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.2541] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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30
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Mingjun X, Mei Z, Yun Z. e0687 The application of vector flow mapping in quantitative assessment of regional myocardial function in CAD patients. Heart 2010. [DOI: 10.1136/hrt.2010.208967.687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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31
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Mei Z, Zhengdang Z, Jin S, Yanli C, Hong L, Deling Z, Shumei M, Xiaodong L. e0323 Analysis of adverse effects from statins-based multi-drug medication. Heart 2010. [DOI: 10.1136/hrt.2010.208967.323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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32
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Liang C, Xiaojun C, Xuan L, Xiaoling L, Yun Z, Mei Z. e0083 Membrane type 1 matrix metalloproteinase activation is enhanced by low shear stress through integrin pathway in ApoE-/- mice. Heart 2010. [DOI: 10.1136/hrt.2010.208967.83] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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33
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Yuanyuan R, Mei Z, Hu SY, Yun Z, Lin Z. e0191 Free fatty acids inhibit the expression of anticoagulant thrombomodulin protein C system an implication for the development of the prothrombotic state in metabolic syndrome. Heart 2010. [DOI: 10.1136/hrt.2010.208967.191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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34
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Ma X, Ye W, Mei Z. Change of cholinergic transmission and memory deficiency induced by injection of beta-amyloid protein into NBM of rats. ACTA ACUST UNITED AC 2009; 44:435-42. [PMID: 18726425 DOI: 10.1007/bf02879611] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2001] [Indexed: 11/29/2022]
Abstract
The change of cholinergic transmission of beta-amyloid protein (beta-AP) treated rats was studied by intracerebral microdialysis sampling combined with HPLC analysis. beta-AP(1-40) was injected into nucleus basalis magnocellularis (NBM). Passive avoidance response test (step-down test) and delayed alternation task were used for memory testing. The impairment of memory after injection of beta-AP(1-40) into NBM exhibited mainly the deficiency of short-term working memory. One week after injection of beta-AP(1-40) the release of acetylcholine (ACh) from frontal cortex of freely-moving rats decreased significantly, and the response of cholinergic nerve ending to the action of high [K(+)] solution was rather weak. In control animals the percentage of increase of ACh-release during behavioral performance was 57%, while in beta-AP(1-40)-treated rats it was 34%. The temporary increase of the ACh-release of the rat put into a new place was also significantly diminished in beta-AP(1-40) -treated rats. The results show that the injection of beta-AP(1-40) into NBM impairs the cholinergic transmission in frontal cortex, and the impairment of cholinergic transmission may be the main cause of the deficit of working memory.
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Affiliation(s)
- X Ma
- Shanghai Institute of Physiology, Chinese Academy of Sciences, China
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35
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Louis C, Pule M, Savoldo B, Myers G, Rossig C, Russell H, Dotti G, Huls M, Liu E, Gee A, Mei Z, Yvon E, Weiss H, Rooney C, Heslop H, Brenner M. Treatment of High-Risk Neuroblastoma with Adoptively Transferred T Lymphocytes Genetically Engineered to Recognize GD2. Biol Blood Marrow Transplant 2009. [DOI: 10.1016/j.bbmt.2008.12.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
OBJECTIVE Although the body mass index (BMI, kg/m2) is widely used as a surrogate measure of adiposity, it is a measure of excess weight, rather than excess body fat, relative to height. We examined the relation of BMI to levels of fat mass and fat-free mass among healthy 5- to 18-y-olds. METHODS AND PROCEDURES Dual-energy X-ray absorptiometry was used to measure fat and fat-free mass among 1196 subjects. These measures were standardized for height by calculating the fat mass index (FMI, fat mass/ht2) and the fat-free mass index (FFMI, fat-free mass/ht2). RESULTS The variability in FFMI was about 50% of that in FMI, and the accuracy of BMI as a measure of adiposity varied greatly according to the degree of fatness. Among children with a BMI-for-age > or =85th P, BMI levels were strongly associated with FMI (r=0.85-0.96 across sex-age categories). In contrast, among children with a BMI-for-age <50th P, levels of BMI were more strongly associated with FFMI (r=0.56-0.83) than with FMI (r=0.22-0.65). The relation of BMI to fat mass was markedly nonlinear, and substantial differences in fat mass were seen only at BMI levels > or =85th P. DISCUSSION BMI levels among children should be interpreted with caution. Although a high BMI-for-age is a good indicator of excess fat mass, BMI differences among thinner children can be largely due to fat-free mass.
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Affiliation(s)
- D S Freedman
- Division of Nutrition and Physical Activity, Centers for Disease Control and Prevention K-26, Atlanta, GA 30341-3717, USA.
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Abstract
A nonapeptide derived from the C terminus of the insulin B chain, H(2)N-Arg-Gly-Phe-Phe-Tyr-Thr-Pro-Lys-Ala-COOH, was found to strongly inhibit dopamine (DA) uptake by rat dopamine transporter (DAT) stably expressed in CHO cells (designated D8 cells). The kinetic experiments on D8 cells gave a curve typical of competitive inhibition with an IC(50)=6.9 microM. This inhibitory effect was also confirmed by experiments on striatal synaptosomes. The rat administered with the nonapeptide unilaterally into substantia nigra showed dose-dependent velocity and duration of the round movement contralateral to the nonapeptide-injected side. In addition, the nonapeptide dose-dependently reduced the binding of the tritium-labeled cocaine analog (-)-2 beta-carbomethoxy-3 beta-(4-fluorophenyl)tropane (WIN35,428) to DAT of D8 cells, which suggests that the nonapeptide may inhibit the transport activity of DAT in the way as cocaine does. Meanwhile, the peptide DOI (insulin with 8 amino acid residues deleted at the C terminus of the B chain) shows a significantly stimulating effect on DAT uptake activity in D8 cells. So insulin is proposed as a kind of neuropeptide precursor in the brain and insulin-derived peptides may be involved in the process of regulating the DA system, and these peptides may be developed into new medicines for disorders concerning the DA system such as Parkinson's disease and cocaine addiction.
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Affiliation(s)
- Z Liu
- Institute of Biochemistry and Cell Biology, Shanghai Institute of Biology Science, Chinese Academy of Sciences, Shanghai, PR China
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Fan GX, Qing LX, Jun Y, Mei Z. Molecular studies and prenatal diagnosis of phenylketonuria in Chinese patients. Southeast Asian J Trop Med Public Health 2001; 30 Suppl 2:63-5. [PMID: 11400788] [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: 02/20/2023]
Abstract
Phenylketonuria (PKU) is one of the most common inborn errors of metabolic disorders. Although PKU induced mental retardation can be prevented after neonatal screening by following treatment with low phenylalanine diet, some parents are seeking prenatal diagnosis. We screened for mutations in exon 3 and 7 of the PAH gene using the DGGE and restriction enzyme method, in combination with STR linkage analysis. Prenatal diagnosis was carried out in 8 PKU families. With this strategy, we are able to make prenatal diagnosis in about 65-70% PKU families. All diagnosis was confirmed in the newborn.
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Affiliation(s)
- G X Fan
- Xin Hua Hospital, Shanghai Second Medical University, Shanghai Institute for Pediatric Research, China.
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39
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Takahashi S, Yotnda P, Rousseau RF, Mei Z, Smith S, Rill D, Younes A, Brenner MK. Transgenic expression of CD40L and interleukin-2 induces an autologous antitumor immune response in patients with non-Hodgkin's lymphoma. Cancer Gene Ther 2001; 8:378-87. [PMID: 11477458 DOI: 10.1038/sj.cgt.7700315] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [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: 11/08/2022]
Abstract
The malignant B cells of non-Hodgkin's lymphoma (B-NHL cells) express peptides derived from tumor-specific antigens such as immunoglobulin idiotypes, and also express major histocompatibility complex antigens. However, they do not express co-stimulatory molecules, which likely contributes to their protection from host antitumor immunity. To stimulate NHL-specific immune responses, we attempted to transfer the human CD40 ligand (hCD40L) gene to B-NHL cells and enhance their co-stimulatory potential. We found that an adenoviral vector encoding human CD40L (AdhCD40L) was ineffective at transducing B-NHL cells because these cells lack the coxsackievirus B-adenovirus receptor and alpha(v) integrins. However, preculture of the B-NHL cells with the human embryonic lung fibroblast line, MRC-5, significantly up-regulated expression of integrin alpha(v)beta 3 and markedly increased their susceptibility to adenoviral vector transduction. After prestimulation, transduction with AdhCD40L increased CD40L expression on B-NHL cells from 1.3+/-0.2% to 40.8+/-11.9%. Transduction of control adenoviral vector had no effect. Expression of transgenic human CD40L on these CD40-positive cells was in turn associated with up-regulation of other co-stimulatory molecules including B7-1/-2. Transduced B-NHL cells were now able to stimulate DNA synthesis of autologous T cells. However, the stimulated T cells were unable to recognize unmodified lymphoma cells, a requirement for an effective tumor vaccine. Based on previous results in an animal model, we determined the effects of combined use of B-NHL cells transduced with AdhCD40L and AdhIL2 vectors. The combination enhanced initial T-cell activation and generated autologous T cells capable of specifically recognizing and killing parental (unmodified) B-NHL cells via major histocompatibility complex--restricted cytotoxic T lymphocytes. These findings suggest that the combination of CD40L and IL2 gene-modified B-NHL cells will induce a cytotoxic immune response in vivo directed against unmodified tumor cells.
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Affiliation(s)
- S Takahashi
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, Texas 77030, USA
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40
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Takahashi S, Rousseau RF, Yotnda P, Mei Z, Dotti G, Rill D, Hurwitz R, Marini F, Andreeff M, Brenner MK. Autologous antileukemic immune response induced by chronic lymphocytic leukemia B cells expressing the CD40 ligand and interleukin 2 transgenes. Hum Gene Ther 2001; 12:659-70. [PMID: 11426465 DOI: 10.1089/104303401300057360] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [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: 11/12/2022] Open
Abstract
Although the B cells of chronic lymphocytic leukemia (B-CLL cells) express both tumor-specific peptides and major histocompatibility complex (MHC) class I antigens, they lack the capacity for costimulatory signaling, contributing to their protection against host antitumor immunity. To stimulate CLL-specific immune responses, we sought to transfer the human CD40 ligand (hCD40L) gene to B-CLL cells, using an adenoviral vector, in order to upregulate costimulating factors on these cells. Because efficient gene transduction with adenoviral vectors requires the expression of virus receptors on target cells, including the coxsackievirus B-adenovirus receptors (CAR) and alpha(v) integrins, we cocultured B-CLL cells with human embryonic lung fibroblasts (MRC-5 line). This exposure led to increased expression of integrin alpha(v)beta3 on B-CLL cells, which correlated with higher transduction rates. Using this novel prestimulation system, we transduced B-CLL cells with the hCD40L gene. The Ad-hCD40L-infected cells had higher expression of B7 molecules and induced activation of autologous T cells in vitro, but these T cells could not recognize parental leukemic cells. By contrast, an admixture of Ad-hCD40L-positive cells and leukemic cells transduced with the human interleukin 2 (IL-2) gene produced greater T cell activation than did either immunostimulator population alone. Importantly, this combination generated autologous T cells capable of specifically recognizing parental B-CLL cells. These findings suggest that the combined use of genetically modified CD40L-expressing B-CLL cells in combination with IL-2-expressing B-CLL cells may induce therapeutically significant leukemia-specific immune responses.
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Affiliation(s)
- S Takahashi
- Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX 77030, USA
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Abstract
OBJECTIVE To examine whether there is a continuation of the decline in prevalence of anemia among low-income infants and children 6.0 to 59.9 months old from the early 1980s to the mid-1990s. STUDY DESIGN Cross-sectional trend analysis of data from the Centers for Disease Control and Prevention's Pediatric Nutrition Surveillance System from the 5 states (Colorado, New Mexico, Oklahoma, Utah, and Vermont) that have been using the same laboratory method for anemia screening since 1984 or earlier. RESULTS The overall prevalence of anemia decreased substantially in each state from the early 1980s to the mid-1990s as follows: Colorado by 52%; New Mexico by 75%; Oklahoma by 67%; Utah by 57%; and Vermont by 48%. In each state, the prevalence of anemia declined for children of different age groups, birth weights, genders, type of pediatric care visit (screening or follow-up), and most race/ethnic groups. CONCLUSIONS The decline in the prevalence of anemia initially observed in the 1980s continued well into the 1990s. This decline is likely attributable to better iron nutrition related to greater usage of iron-fortified products and possibly better iron bioavailability in some of the food products.
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Affiliation(s)
- B Sherry
- Maternal and Child Nutrition Branch, Division of Nutrition and Physical Activity, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia 30341-3724, USA.
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Williams J, Patsalos PN, Mei Z, Schapel G, Wilson JF, Richens A. Relation between dosage of carbamazepine and concentration in hair and plasma samples from a compliant inpatient epileptic population. Ther Drug Monit 2001; 23:15-20. [PMID: 11206037 DOI: 10.1097/00007691-200102000-00004] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Compliance is a problem in all areas of therapeutic medicine. Methods for its assessment are classified as either indirect or direct. Indirect assessment is based on criteria such as pill counts, questionnaires, and self-reporting; direct methods involve the analytic measurement of the drugs in biologic fluids such as plasma or urine. Drugs taken either therapeutically or recreationally become incorporated into hair. This prospective study investigated the relation between the daily intake of the antiepileptic drug carbamazepine and both its trough plasma and hair concentrations in a highly supervised inpatient population of patients with epilepsy during a period of 6 months. Results showed that although there was a significant variation between patients resulting from the substantial range in the daily intake of carbamazepine (800-2400 mg/day), the intrapatient variation in both trough plasma and hair concentrations during the 6-month period were not significantly different. The mean intrapatient percentage coefficient of variation in total plasma and hair concentrations of carbamazepine was 11.5 +/- 4.7 and 15.0 +/- 5.2, respectively, both of which were independent of the daily dosage. This relatively small intrapatient variation in hair concentration over time and its close relation to the plasma concentration suggests that hair analysis may be a complementary and useful technique in monitoring drug-taking behavior.
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Affiliation(s)
- J Williams
- Department of Pharmacology, Therapeutics and Toxicology, University of Wales College of Medicine, Cardiff, UK
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43
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Ye F, Wei J, Hu Y, Li X, Wang S, Mei Z, Chen X, Wang Y, Xu R. [Pharyngeal passage tube treatment for obstructive apnea syndrome]. Zhonghua Er Bi Yan Hou Ke Za Zhi 2001; 36:58-60. [PMID: 12761912] [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: 03/02/2023]
Abstract
OBJECTIVE To investigate the therapeutical effect of pharyngeal passage tube for OSAS. METHODS Fifty-seven patients were treated during May 1995 to August 1999. All patients were examined by GKD-405 A polysomnography for apnea index (AI), hypnea index (HI), AHI (AI + HI) at cetera 7 items index before and after pharyngeal passage tube treatment. RESULTS After treatment, the longest time of apnea shortened from (54.82 +/- 20.83) s to (25.74 +/- 9.50) s, the AHI lessened from 70.82 +/- 18.06 to 30.00 +/- 10.10, the oxygen desaturation increased from (62.36 +/- 11.53)% to (78.68 +/- 12.09)%. After treatment, the recorded parameters showed obvious therapeutical effect (P < 0.05-0.001, t values is from 2.20 to 15.29, the snore loudness of all patients dropped from (84.32 +/- 18.51) dB to (32.64 +/- 10.16) dB. The therapeutical successful rate was 87.72%. The long-term use rate (over 6 months) was 72.73%. CONCLUSION The pharyngeal passage tube has obvious effect for patients suffering from severe OSAS. It is recommended for the treatment of OSAS as a conservative method.
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Affiliation(s)
- F Ye
- Department of Otorhinolarynology, Anhui Provincial Hospital, Hefei 230001, China.
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Sherry B, Embree JE, Mei Z, Ndinya-Achola JO, Njenga S, Muchunga ER, Bett J, Plummer FA. Sociodemographic characteristics, care, feeding practices, and growth of cohorts of children born to HIV-1 seropositive and seronegative mothers in Nairobi, Kenya. Trop Med Int Health 2000; 5:678-86. [PMID: 11044261 DOI: 10.1046/j.1365-3156.2000.00631.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
UNLABELLED OBJECTIVES To compare sociodemographic profiles, child care, child feeding practices and growth indices of children born to HIV-1 seropositive and seronegative mothers. METHODS A cohort study of 234 children (seropositive and seronegative) born to HIV-1 seropositive mothers and 139 children born to seronegative mothers in Pumwani Maternity Hospital which serves a low-income population in Nairobi, Kenya from December 1991 and January 1994. RESULTS With few exceptions, at the time of their birth children in all three cohorts had parents with similar characteristics, lived in similar housing in similar geographical areas, had their mothers as their primary care givers, had similar feeding practices and similar growth status and patterns. However, the HIV-1 seropositive mothers were slightly younger (23.8 years vs. 25.0 years, P < 0.01), if married they were less likely to be their husband's first wife (79% vs. 91%, P = 0.02) and more likely to have a one-room house (75% vs. 63%, P = 0.04). All three cohorts had mean Z-scores in length-for-age and in weight-for-height within the normal range (>/= 2.0 Z-scores) from birth to 21 months with the exception of the length-for-age of the seropositive children at the 18-month visit. In all cohorts length-for-age became more compromised than weight-for-length, dropping to about -1.45 Z-score by 21 months; in contrast, weight-for-length dropped to about -0.5 Z-score by this age. The only statistically significant differences in growth indices among the three cohorts were between the two cohorts of seronegative children: those with seronegative mothers were less compromised in length-for-age at 1.5 months (mean Z-score = -0.19 vs. -0.48, P < 0.05) and more compromised in weight-for-length at 6 months (mean Z-score = 0.10 vs. 0.45, P < 0.05) and at 18 months (mean Z-score = -0.73 vs. -0.16, P < 0.05). 27-34% were exclusively breastfed at 1.5 months; 52-61% consumed solid foods in addition to breast milk by 2.5 months. CONCLUSIONS Low-income HIV-1 seropositive- and seronegative-born children were from families with similar characteristics and similar housing environments. Similar growth patterns in the cohorts suggest that the challenging environment and the choice of weaning foods had an impact on all three cohorts. The aggressive care given the children with HIV-1 seropositive mothers and their children may have reduced the progression and impact of HIV-1 disease on the growth of the seropositive children. Further research is needed to corroborate our findings to be certain that our results are not affected by loss to follow-up bias: we lost the same proportion in all three cohorts but cannot verify that the children we lost had the same growth patterns as those who remained in the study.
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Affiliation(s)
- B Sherry
- Department of Epidemiology, University of Washington, Seattle, USA.
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Kuczmarski RJ, Ogden CL, Grummer-Strawn LM, Flegal KM, Guo SS, Wei R, Mei Z, Curtin LR, Roche AF, Johnson CL. CDC growth charts: United States. Adv Data 2000:1-27. [PMID: 11183293] [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: 02/19/2023]
Abstract
OBJECTIVES This report presents the revised growth charts for the United States. It summarizes the history of the 1977 National Center for Health Statistics (NCHS) growth charts, reasons for the revision, data sources and statistical procedures used, and major features of the revised charts. METHODS Data from five national health examination surveys collected from 1963 to 1994 and five supplementary data sources were combined to establish an analytic growth chart data set. A variety of statistical procedures were used to produce smoothed percentile curves for infants (from birth to 36 months) and older children (from 2 to 20 years), using a two-stage approach. Initial curve smoothing for selected major percentiles was accomplished with various parametric and nonparametric procedures. In the second stage, a normalization procedure was used to generate z-scores that closely match the smoothed percentile curves. RESULTS The 14 NCHS growth charts were revised and new body mass index-for-age (BMI-for-age) charts were created for boys and girls (http://www.cdc.gov/growthcharts). The growth percentile curves for infants and children are based primarily on national survey data. Use of national data ensures a smooth transition from the charts for infants to those for older children. These data better represent the racial/ethnic diversity and the size and growth patterns of combined breast- and formula-fed infants in the United States. New features include addition of the 3rd and 97th percentiles for all charts and extension of all charts for children and adolescents to age 20 years. CONCLUSION Created with improved data and statistical curve smoothing procedures, the United States growth charts represent an enhanced instrument to evaluate the size and growth of infants and children.
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Zheng X, Mei Z, Wang C, Wang L, Guo P, Qiao X, Liu A, Mao Y. [Residual risk research of HIV infection after blood screening in one county in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2000; 21:13-4. [PMID: 11860748] [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: 02/23/2023]
Abstract
OBJECTIVE To estimate the risk of HIV infections from blood transfusions, to evaluate existing blood screening measures, and to make recommendations to improve current blood screening practices. METHODS Research was conducted in a county blood station. A statistical model and retrospective method were used to analyse the data. RESULTS Between June 1995 and March 1998, 19 blood donors tested positive for HIV antibodies and among them, 7 were repeat blood donors. Twenty - two blood recipients were identified from these 7 donors during six months, 9 are still alive today, while one patient was infected with HIV from a blood transfusion while undergoing an operation. The residual risk of the blood station using a statistical model and retrospective methods were 1/1,773 - 1/28,867 and 1/2,008 - 1/2,730 donations respectively. CONCLUSION The residual risk of HIV after screening in the county blood station was high. We recommend further improvements to current blood screening practices.
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Affiliation(s)
- X Zheng
- National Center for AIDS Prevention and Control, Beijing 100050, China
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Ren L, Hou M, Yi C, Luo D, Qiu M, Xie M, Mei Z. [Comparison between carboplatin and cisplatin plus etoposide and carboplatin plus etoposide in the treatment of small cell lung cancer.]. Zhongguo Fei Ai Za Zhi 1999; 2:87-9. [PMID: 20929637 DOI: 10.3779/j.issn.1009-3419.1999.02.08] [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
BACKGROUND To evaluate the effect and toxicity of combination chemotherapy with carboplatin and cisplatin plus etoposide (CPE regimen) and carboplatin plus etoposide (CE regimen) in the treatment of small cell lung cancer (SCLC) . METHODS Thirty-two patients with SCLC were treated with CPE and CE regimens , and each regimen had 16 cases respectively. There were 10 retreated cases in CPE group and 7 retreated cases in CE group. RESULTS The total response rate (CR + PR) was 81. 3 %(13/ 16) in CPE group , and 87. 5 %(14/ 16) in CE group ( P > 0. 05) respectively. The response rate of the retreated cases in CPE group was 60 %(6/ 10) , and 42. 9 %(3/ 7) in CE group ( P < 0. 05) . The bone marrow suppression rate was 71. 9 % in CPE group and 93. 8 % in CE group ( P < 0. 05) . There were no significant differences between other toxicity in both groups ( P > 0. 05) . CONCLUSIONS The therapeutic effect of CPE regimen in SCLC is similar to that of CE regimen , but the bone marrow suppression rate of CPE regimen is less severe than that of CE regimen. The therapeutic effect of CPE regimen is better than that of CE regimen for the retreated cases.
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Affiliation(s)
- L Ren
- Department of Medical Oncology , Cancer Center , The First University Hospital , West China University of Medical Sciences , Chengdu 610041 , P. R. China
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Mei Z, Sun J, Ye F. [Anatomic investigation of facial canal related to middle ear surgery]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 1999; 13:488-9. [PMID: 12541368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To avoid hurting facial nerve in middle ear surgery. METHOD 20 adult head cadavers with 40 sides tempotal bone were dissected and investigated. RESULT 1. Prevalence of dehiscent facial nerve canal was 32.5% (13/40), while 2.5% (1/40), 27.5% (11/40), 7.5%(3/40) incidence facial nerve canal were found in the labyrinthine, horizontal, vertical segment respectively. 2. Distance between the vertical portion of facial nerve and posterior semicircular canal was 0.62-5.08(2.48 +/- 0.63) mm. Interspace between the vertical portion of facial nerve and tympanic chorda was 0-4.62 (2.12 +/- 0.76) mm at the level of tympanic ditch, while interspace between the vertical portion of facial nerve and tympanic ditch was 2.96-8.82 (5.86 +/- 1.62) mm. 3. Distance between horizontal portion of facial nerve and lateral semicircular canal was 0-3.02 (1.92 +/- 0.84) mm. Interspace between horizontal portion of facial nerve and stapedial board was 0.92-4.06(2.14 +/- 0.90) mm. CONCLUSION Familiarity with facial nerve procession should be favorable to decrease facial paralysis with middle ear surgery.
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Affiliation(s)
- Z Mei
- Department of Otolaryngology, Anhui Provincial Hospital, Hefei 230001
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Sun J, Mei Z, Ye F. [Anatomical consideration for the injury of dacryocyst and nasolacrimal duct during intranasal sinus surgery]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 1998; 12:398-400. [PMID: 11263145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Based on dissection and measurement on 20 adult head cadavers, there is the close relationship between lacrimal duct and lateral wall of the nasal cavity. The cells of anterior ethmoid sinus were classified into three degrees, according to the relationship between the anterior ethmoid sinus and the lacrimal sac fossa. The average distance is 6.74 +/- 1.72 mm between the nasolacrimal duct and the upper part of the uncinate process, 3.44 +/- 0.75 mm and 5.50 +/- 3.73 mm from the nasolacrimal duct to ethmoidal infundibulum and the maxillary ostium. The orifice of the duct most commonly opens under the insertion of the inferior turbinate anteriorly. To perform intranasal sinus surgery, the safest area and key operation approach were discussed.
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Affiliation(s)
- J Sun
- Department of Otolaryngology, Anhui Provincial Hospital, Hefei 230001
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Ye W, Ma X, Mei Z. [Determination of acetylcholine and choline in microdialysates from rat brain by high performance liquid chromatography with electrochemical detection combined with a post-column immobilized enzyme reactor]. Se Pu 1998; 16:375-8. [PMID: 11498913] [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: 02/21/2023] Open
Abstract
In the present work, acetylcholine(ACh) and choline(Ch) in the microdialysates from three brain areas of anesthetized rats and from hippocampus and frontal cortex of freely moving rats were simultaneously measured by high performance liquid chromatography(HPLC) with electrochemical detection combined with a post-column immobilized enzyme reactor(IMER). This assay was based on the separation of ACh and Ch on a polymer gel column followed by passage of the effluent through an IMER, on which the separated ACh and Ch reacted respectively to give each stoichiometric yield of hydrogen peroxide, which was detected electrochemically at a platinum electrode (potential + 0.5 V versus Ag/AgCl). The tip of concentric dialysis probe was made of the semipermeable dialysis membrane of 0.22 mm in outside diameter, and the effective length inserted into rat brain was 3.0 mm. The probe was perfused at a rate of 1 microL/min with Ringer's solution which contained 10 mumol/L (for anesthetized rats) or 1 mumol/L (for freely moving rats) neostigmine, a reversible cholinesterase inhibitor, to elevate ACh level in microdialysate. Before the experiment, the recovery of the probe in vitro was measured at room temperature, and the position of the probe was checked by histological procedure at the end of the experiment. In the range of 0.2-100 mumol/L, the relation between the amounts and the peak areas was linear (r = 0.9988 for ACh and r = 0.9985 for Ch). The detection limit for ACh and Ch, at a S/N ratio of two, was found to be 50 fmol per injection. The probe recoveries(%) for ACh and for Ch were 23.2 +/- 1.4 and 34.3 +/- 3.2(mean +/- SD) respectively. The basal levels of ACh in the microdialysates from striatum and frontal cortex of anesthetized rats as well as from hippocampus and frontal cortex of freely moving rats were 212 +/- 28 and 22 +/- 4 as well as 26 +/- 4 and 83 +/- 7(nmol/L, mean +/- SD, not corrected according to probe recovery) respectively. The perfusion of high concentration K+ (100 mmol/L) through the dialysis probe induced a large increase of ACh in the microdialysates. The critical points for HPLC analysis combined with IMER were briefly discussed.
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Affiliation(s)
- W Ye
- Shanghai Institute of Physiology, Chinese Academy of Sciences, Shanghai, 200031
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