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Li W, Wang CM. An ideal candidate for observing anomalous Hall effect induced by the in-plane magnetic field. J Phys Condens Matter 2024; 36:205001. [PMID: 38335548 DOI: 10.1088/1361-648x/ad2804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/09/2024] [Indexed: 02/12/2024]
Abstract
The anomalous Hall effect induced by the in-plane magnetic field (anomalous planar Hall effect) has recently attracted a lot of interests due to its numerous advantages. Although several schemes have been put forward in theory, experimental observations in many materials so far are often accompanied by planar Hall effects due to other mechanisms, rather than the pure anomalous planar Hall effect (APHE). We propose the surface state of the strained topological insulator as an ideal candidate to observe this effect. The surface state exhibits a pure APHE, characterized by a linear dependence on the magnetic field and a 2πperiodicity, which remains robust against the scattering of non-magnetic and various magnetic impurities, as long as the uniaxial strain preserves mirror symmetry. Although a general strain that breaks the mirror symmetry can induce the conventional Drude Hall effect, the anomalous contribution remains dominant. Furthermore, we present a feasible scheme to distinguish between the two contributions based on their distinct magnetic field dependencies. Our work is of great significance for promoting experimental observation of the APHE and provides reference value in the search for other realistic materials.
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Affiliation(s)
- Wenrong Li
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - C M Wang
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
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Zhao SL, Xiong JP, Luan JY, Jia ZC, Han JT, Feng QC, Zhuang JM, Li TR, Wang CM, Li X. Intra-Sac Injection of Thrombin During Endovascular Aneurysm Repair to Remedy Type II Endoleak and Promote Sac Shrinkage. Vasc Endovascular Surg 2024; 58:151-157. [PMID: 37607586 DOI: 10.1177/15385744231197457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
PURPOSE To evaluate the safety and effectiveness of intra-sac thrombin injection to remedy type II endoleaks (T2ELs) during endovascular aneurysm repair (EVAR). MATERIALS AND METHODS 224 cases abdominal aortic aneurysm (AAA) were treated with EVAR. For the 52 cases of intra-operative type II endoleaks and 8 cases of ruptured AAAs, after the grafts were deployed, thrombin was injected into the aneurysm sac through a preset catheter. The occurrence of endoleaks post-EVAR were followed up with by Computed Tomography (CT) angiogram. The diameter and the volume of the aneurysm sac were also measured. Endpoints included incidence of T2ELs, AAA sac shrinkage and re-intervention rate and all-cause mortality. RESULTS The overall technical success rate was 100%. Fifty-two patients were followed up with for 9-56 (median 24) months. No serious complications were observed during follow-up. The incidence of endoleak was 5.8% (3/52) during follow-up. The maximum diameter of the aneurysm decreased from 61.1 ± 14.2 mm to 53.7 ± 10.6 mm, 47.9 ± 8.3 mm and 43.7 ± 7.2 mm (87.9%, 78.4% and 71.5% of pre-EVAR) at the 6-month, 1-year and 2-year follow-up, respectively (P < .05). The volume of the aneurysm sac shrank from 236.2 ± 136.2 cm3 to 202.6 ± 114.1 cm3, 155.6 ± 68.4 cm3 and 129.7 ± 52.4 cm3 (85.8%, 65.9%, and 54.9% of pre-EVAR) at the 6-month, 1-year and 2-year follow-up, respectively (P < .05). The rate of various endoleaks was 5.8% (3/52) and the re-intervention rate was 1.9% (1/52) in this research. CONCLUSIONS Clinical outcomes show that intra-sac injection of thrombin during EVAR is safe and may be effective in remedying small amount and low-velocity endoleaks and promoting shrinkage of the aneurysm sac.
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Affiliation(s)
- Shi Lu Zhao
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Jian Ping Xiong
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Jing Yuan Luan
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Zi Chang Jia
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Jin Tao Han
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Qi Chen Feng
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Jin Man Zhuang
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Tian Run Li
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Chang Ming Wang
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Xuan Li
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing, China
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Ren ZG, Xu Y, Hua ZZ, Mo ZY, Wang LW, Shi GB, Liu WL, Sun W, Zheng BQ, Wang CM, Jin YJ, Chen Y. [Efficacy of adjuvant programmed cell death 1 (PD-1) monoclonal antibody immunotherapy in Chinese patients with resected stage Ⅱ-Ⅲ melanoma]. Zhonghua Zhong Liu Za Zhi 2023; 45:973-980. [PMID: 37968084 DOI: 10.3760/cma.j.cn112152-20230331-00140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/17/2023]
Abstract
Objective: To explore the efficacy of adjuvant programmed cell death 1 (PD-1) monoclonal antibody immunotherapy in Chinese patients with resected stage Ⅱ-Ⅲ melanoma. Methods: A total of 296 patients who underwent radical surgery for stage Ⅱ-Ⅲ cutaneous orlimb melanoma at Fudan University Shanghai Cancer Center and Shanghai Electric Power Hospital between 2017 and 2021 and received adjuvant PD-1 monoclonal antibody immunotherapy, low-dose interferon (IFN), or observational follow-up were enrolled in this study. Patients were divided into the PD-1 monoclonal antibody group (164 cases) and the IFN or observation group (IFN/OBS group, 132 cases) based on postoperative adjuvant treatment methods. Patients' disease recurrence and survival were observed. Results: Among the 296 patients, 77 had cutaneous melanoma and 219 had limb melanoma; 110 were stage Ⅱ and 186 were stage Ⅲ. Among stage Ⅱ patients, the median recurrence-free survival (RFS) in the PD-1 monoclonal antibody group (46 cases) did not reach, while the median RFS in the IFN/OBS group (64 cases) was 36 months. The 1-year RFS rates were 85.3% and 92.1% and the 2-year RFS rates were 71.9% and 63.7% in the PD-1 monoclonal antibody group and the IFN/OBS group, respectively, with no statistically significant difference (P=0.394). Among stage Ⅲ patients, the median RFS rates in the PD-1 monoclonal antibody group (118 cases) and the IFN/OBS group (68 cases) were 23 and 13 months, respectively. The 1-year RFS rates were 70.0% and 51.8% and the 2-year RFS rates were 51.8% and 35.1%in the PD-1 monoclonal antibody group and the IFN/OBS group, respectively, with a statistically significant difference (P=0.010). Stratified analysis showed that the advantage of PD-1 monoclonal antibody adjuvant therapy in improving RFS persisted in the subgroups of primary ulceration (HR=0.558, 95% CI: 0.348-0.893), lymph node macroscopic metastasis (HR=0.486, 95% CI: 0.285-0.828), stage ⅢC (HR=0.389, 95% CI: 0.24-0.63), and the subgroup without BRAF/c-Kit/NRAS gene mutations (HR=0.347, 95% CI: 0.171-0.706). In terms of recurrence patterns, in stage Ⅱ patients, the recurrence and metastasis rate was 15.2% (7/46) in the PD-1 monoclonal antibody group, significantly lower than the IFN/OBS group [43.8% (28/64), P=0.002]. In stage Ⅲ melanoma patients, the recurrence and metastasis rate was 42.4% (50/118) in the PD-1 monoclonal antibody group, also lower than the IFN/OBS group [63.2% (43/68), P=0.006]. Conclusions: In real-world settings, compared with patients receiving low-dose IFN adjuvant therapy or observational follow-up, PD-1 monoclonal antibody immunotherapy can reduce the recurrence and metastasis rate of cutaneous and limb melanoma, and prolong the postoperative RFS of stage Ⅲ cutaneous and limb melanoma patients. Patients with a heavier tumor burden benefit more from immunotherapy.
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Affiliation(s)
- Z G Ren
- Department of Orthopedics, Shanghai Electric Power Hospital, Shanghai 200050, China
| | - Y Xu
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Z Z Hua
- Department of Orthopedics, Shanghai Electric Power Hospital, Shanghai 200050, China
| | - Z Y Mo
- Department of Orthopedics, Shanghai Electric Power Hospital, Shanghai 200050, China
| | - L W Wang
- Department of Orthopedics, Shanghai Electric Power Hospital, Shanghai 200050, China
| | - G B Shi
- Department of Orthopedics, Shanghai Electric Power Hospital, Shanghai 200050, China
| | - W L Liu
- Department of Orthopedics, Shanghai Electric Power Hospital, Shanghai 200050, China
| | - W Sun
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - B Q Zheng
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - C M Wang
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
| | - Y J Jin
- Department of Orthopedics, Shanghai Electric Power Hospital, Shanghai 200050, China
| | - Y Chen
- Department of Musculoskeletal Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China
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Gong X, Wang CM, Li LN, Lyu SB. [Influencing factors for electronic cigarette use among Chinese adolescent students: a Meta-analysis]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1640-1646. [PMID: 37859384 DOI: 10.3760/cma.j.cn112150-20221226-01227] [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: 10/21/2023]
Abstract
Objective: To explore the influencing factors of electronic cigarette use among adolescent students in China. Methods: We searched CNKI, Database of Chinese sci-tech periodicals (VIP), Wan-fang database, PubMed, Web of Science and ScienceDirect for potentially relevant articles published from the inception to March 20th, 2023. The Metagen package in R was used for Meta-analysis. Results: A total of 19 publications with a sample size of 5 336 017 were identified. The results showed that electronic cigarette use among Chinese adolescent students was associated with gender (OR=2.41, 95%CI: 2.03-2.86), close friends smoking (OR=3.02, 95%CI: 2.08-4.39), current smoking (OR=11.26, 95%CI: 4.35-29.18), friends using electronic cigarettes (OR=5.19, 95%CI: 2.01-13.38), thinking smoking makes young people look more attractive (OR=2.00, 95%CI: 1.35-2.97), type of school (OR=2.10, 95%CI: 1.59-2.78), thinking smoking makes people feel more comfortable in social situations (OR=3.58, 95%CI: 2.99-4.28), other tobacco use (OR=5.53, 95%CI: 3.33-9.20), and ever experimented with cigarette use (OR=9.32, 95%CI: 4.38-19.80). Conclusion: The influencing factors for electronic cigarette use among adolescent students in China include gender, close friends smoking, current smoking, friends using electronic cigarettes, thinking smoking makes young people look more attractive, type of school, thinking smoking makes people feel more comfortable in social situations, other tobacco use, and ever experimented with cigarette use.
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Affiliation(s)
- X Gong
- School of Psychology and Mental Health, North China University of Science and Technology, Tangshan 063000, China
| | - C M Wang
- Capital Medical University, Beijing Xuanwu Hospital, Beijing 100000, China
| | - L N Li
- School of Psychology and Mental Health, North China University of Science and Technology, Tangshan 063000, China
| | - S B Lyu
- School of Psychology and Mental Health, North China University of Science and Technology, Tangshan 063000, China
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Wang CM, Liu H, Li LJ, Song J, Wang HQ, Wu YH, Guan J, Xing LM, Wang GJ, Liu H, Qu W, Wang XM, Shao ZH, Fu R. [Analysis of infection in B-cell lymphoma patients treated with BTK inhibitors]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:582-586. [PMID: 37749040 PMCID: PMC10509625 DOI: 10.3760/cma.j.issn.0253-2727.2023.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Indexed: 09/27/2023]
Affiliation(s)
- C M Wang
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - H Liu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - L J Li
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - J Song
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - H Q Wang
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Y H Wu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - J Guan
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - L M Xing
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - G J Wang
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - H Liu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - W Qu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - X M Wang
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Z H Shao
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - R Fu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin 300052, China
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Ren HC, Li TR, Zhuang JM, Li X, Luan JY, Wang CM, Ding MC. Comparison of complete multi-level vs. iliac-only revascularization for concomitant iliac and superficial femoral artery occlusive disease. Front Surg 2023; 10:1188990. [PMID: 37304188 PMCID: PMC10249780 DOI: 10.3389/fsurg.2023.1188990] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 05/03/2023] [Indexed: 06/13/2023] Open
Abstract
Objective The aim of this study is to compare the efficacy and safety of complete multi-level vs. iliac-only revascularization for the treatment of concomitant iliac and superficial femoral artery (SFA) occlusive disease. Methods A total of 139 consecutive adult patients with severe stenosis and occlusive iliac and SFA disease with Rutherford categories 2-5 underwent multi-level (n = 71) and iliac-only (n = 68) revascularization at the Department of Intervention Vascular Surgery, Peking University Third Hospital, and Aerospace Center Hospital, between March 2015 and June 2017. Improvement in Rutherford class, perioperative major adverse events, the length of stay, survival rate, and limb salvage rate were assessed. The neutrophil-lymphocyte ratio and platelet-lymphocyte ratio were compared between the two groups. Results At 48 months, improvement in the Rutherford category was observed in the two groups with no significant difference (P = 0.809). Additionally, the two groups were similar concerning the primary patency (84.0% vs. 79.1%, P = 0.717) and limb salvage rate (93.1% vs. 91.3%, P = 0.781). A higher proportion of the perioperative major adverse events (33.8% vs. 27.9%, P = 0.455), the all-cause mortality (11.3% vs. 8.8%, P = 0.632), and the average length of hospital stay [7.0 (6.0, 11.0) vs. 7.0 (5.0, 8.0), P = 0.037] were seen in the multi-level group compared with the iliac-only group. Conclusion For concomitant iliac and superficial femoral artery occlusive disease, iliac-only revascularization has favorable efficacy and safety outcomes compared with complete multi-level revascularization in selected patients with patent profunda femoris artery and at least one healthy outflow tract of the infrapopliteal artery.
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Affiliation(s)
- Hong Cheng Ren
- Department of Intervention Vascular, Aerospace Center Hospital, Beijing, China
| | - Tian Run Li
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Jin Man Zhuang
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Xuan Li
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Jing Yuan Luan
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Chang Ming Wang
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, China
| | - Ming Chao Ding
- Department of Intervention Vascular, Aerospace Center Hospital, Beijing, China
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Zhuang JM, Li TR, Li X, Luan JY, Wang CM, Feng QC, Han JT. [Application of Rotarex catheter system in femoropopliteal artery stenosis accompanied with thrombosis]. Beijing Da Xue Xue Bao Yi Xue Ban 2023; 55:328-332. [PMID: 37042145 PMCID: PMC10091259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
OBJECTIVE To evaluate the effectiveness and safety of Rotarex catheter system in treating femoropopliteal artery stenosis accompanied with thrombosis. METHODS From Jun. 2017 to Dec. 2019, the clinical data of 32 femoropopliteal artery stenosis accompanied with thrombosis cases treated with Rotarex catheter system were retrospectively analyzed. There were 23 males and 9 females aged from 50 to 89 years and the mean age was (70.7±10.3) years. Six cases had acute course of disease (≤2 weeks), 17 cases had subacute course of disease (>2 weeks, ≤3 months), and 9 cases had chronic course of disease (>3 months). Mean lesion length was (23.4±13.7) cm, mean occlusion length was (19.9±13.3) cm, and in-stent occlusion 7 cases. The superficial femoral artery (SFA) was involved in 13 cases, the popliteal artery (PA) was involved in 8 cases, and both SFA and PA were involved in the other 11 cases. All the cases were treated with Rotarex catheter system. When necessary, suction with large lumen catheter was enabled. Residual stenosis was treated with percutaneous transluminal angioplasty (PTA). Drug-coated balloon (DCB) was only used in patients with financial status, and stent was used only when it was necessary. Heparin was used for 24 h after procedures, and after that, antiplatelet agents were used. Doppler ultrasonography was taken during the followed-up. RESULTS Technical success was 100%, and mean procedure time was (107.4±21.5) min. 8F (1F≈0.33 mm) and 6F Rotarex catheter were used in 27 and 5 cases respectively. In 27 cases, forward flow was obtained immediately after debulking with Rotarex catheter, and in the other 5 cases, suction with large lumen catheters were used. PTA was used in all 32 cases. DCB were used in 8 cases, of which 4 were used in in-stent stenosis. Twelve cases were implanted stents. There were no perioperative deaths. The only one procedure related complication was distal embolism. We took out the thrombus with guiding catheter. In all cases, mean hospital stay were (4.6±1.5) d. The ankle brachial index increased from 0.32±0.15 to 0.86±0.10 after treatment (t=-16.847, P < 0.001). The Rutherford stages decreased significantly (Z=-4.518, P < 0.001). All the patients were followed up for 6.0-36.0 months, and the median time was 16.0 months. 2 cases stopped antiplatelet agents, which resulted in acute thrombosis. Another percutaneous mechanical thrombectomy and PTA were taken in one of them. Two cases died of cardiovascular disease during the follow-up, and no amputation was observed. Target lesion restenosis occurred in 7 cases during the follow-up, and target lesion revascularization (TLR) was taken in two of them. CONCLUSION In treating femoropopliteal artery stenosis accompanied with thrombosis, Rotarex catheter can remove thrombus effectively, and that can expose underlying lesions and reduce stent use and complications rates. It is a safe and effective method.
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Affiliation(s)
- J M Zhuang
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - T R Li
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - X Li
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - J Y Luan
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - C M Wang
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - Q C Feng
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - J T Han
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
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Zhang JX, Wang CM. A 2 π-periodic anisotropic magnetoresistance in multi-Weyl semimetals. J Phys Condens Matter 2023; 35:125301. [PMID: 36652717 DOI: 10.1088/1361-648x/acb47a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 01/18/2023] [Indexed: 06/17/2023]
Abstract
A 2π-periodic anisotropic magnetoresistance (AMR) violating the classical two-fold symmetry is found in the multi-Weyl semimetals. It is induced by the intrinsic magnetization due to the magnetic doping. The monopole charge influences the novel AMR, strongly. For single- and triple-Weyl semimetals, tilt along thex-direction or equivalently along they-direction is indispensable in the nonzero AMR. However, the AMR with 2πperiod even exists for the untilted double-Weyl case. The oscillation of the conductivity for the triple one is out-of-phase compared to the other two. We decompose the conductivity into theπand 2πparts. The amplitude of the dominant 2πcontribution increases almost linearly with the magnetization for all three cases. Moreover, the strength of the magnetic scattering strongly affects the magnitudes. Our work will contribute to a deeper understanding of the AMR in multi-Weyl semimetals.
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Affiliation(s)
- J X Zhang
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - C M Wang
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
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Li MY, Feng Y, Guan X, Fu M, Wang CM, Jie JL, Li H, Bai YS, Li GYN, Wei W, Meng H, Guo H. [The relationship between peripheral blood mitochondrial DNA copy number and incident risk of liver cancer: a case-cohort study]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1289-1294. [PMID: 36207893 DOI: 10.3760/cma.j.cn112150-20220104-00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the association between peripheral blood mitochondrial DNA copy number (mtDNAcn) and incident risk of liver cancer. Methods: At the baseline of Dongfeng-Tongji (DFTJ) cohort, 27 009 retirees were recruited from Dongfeng Motor Corporation in 2008. After excluding people without baseline DNA, with current malignant tumor and loss of follow-up, 1 173 participants were randomly selected into a sub-cohort by age-and gender-stratified sampling method at a proportion of 5% among all retirees. A total of 154 incident liver cancer cases identified from the cohort before December 31, 2018 (4 cases had been selected into the sub-cohort) were selected to form the case cohort of liver cancer. For the above 1 323 participants, their baseline levels of mtDNAcn in peripheral blood cells were measured by using quantitative real-time PCR method. The restricted cubic spline analysis was used to fit the shape of the association between baseline mtDNAcn and incident risk of liver cancer. The weighted Cox proportional hazards model was used to estimate the hazard ratio (HR) and 95%CI. Results: In this case-cohort study, the median follow-up time was 10.3 years. The restricted cubic spline analysis indicated that the relationship between peripheral blood mtDNAcn and incident risk of liver cancer followed a U-shaped pattern (Pnon-linear<0.05). All case-cohort population were divided into four subgroups by sex-specific quartiles of mtDNAcn levels among sub-cohort participants, when compared to participants in the Q2 subgroup of mtDNAcn, those in the Q1 subgroup (HR=2.00,95%CI:1.08-3.70) and Q4 subgroup (HR=4.11,95%CI:2.32-7.26) both had a significantly elevated risk of liver cancer, while those in the Q3 subgroup (HR=1.05,95%CI:0.54-2.05) had not. There were no significant multiply interaction effects of aging, gender, tobacco smoking, alcohol drinking and history of chronic hepatitis on the above association (Pinteraction>0.05). Conclusion: Both extremely low and high baseline level of mtDNAcn in peripheral blood cells are associated with an increased risk of incident liver cancer, but the underlying mechanisms need to be further clarified.
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Affiliation(s)
- M Y Li
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Feng
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - X Guan
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - M Fu
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C M Wang
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J L Jie
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H Li
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y S Bai
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - G Y N Li
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - W Wei
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H Meng
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - H Guo
- Department of Occupational and Environmental Health, Key Laboratory of Environment & Health, Ministry of Education, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Yue J, Wang CM, Lyu JX, Jian SJ, Niu YY, Liu SS, Sun ST, Han L, Zhang HM. [Susceptibility of drug-resistant staphylococci isolated from different parts of the ocular anterior segment to common ophthalmic antibiotics]. Zhonghua Yan Ke Za Zhi 2022; 58:598-605. [PMID: 35959604 DOI: 10.3760/cma.j.cn112142-20220119-00023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objectie To investigate the susceptibility of drug-resistant staphylococci isolated from different parts of the anterior segment to levofloxacin, tobramycin, cefazolin sodium, fusidic acid and clindamycin. Methods: Experimental Study. A total of 67 patients with anterior segment infection (33 cases of conjunctivitis, 6 cases of bacterial keratitis, 7 cases of blepharitis, 9 cases of neonatal dacryocystitis, 9 cases of neonatal dacryocystitis, 1 case of adult dacryocystitis and 11 cases of other infectious eye diseases) were collected from the conjunctival sac, cornea, eyelid margin and lacrimal sac. Minimum inhibitory concentration (MIC) determination of methicillin-resistant Staphylococcus (MRS) strains and β-lactamase-producing (β-Lac) strains by a micro-liquid-based method, according to the M100 standard of the American Institute for Clinical and Laboratory Standardization Susceptibility and resistance determinations were made. Data were statistically analyzed using Chi-square or Fisher's exact test. Results: Thirty-five MRS, 30 β-Lac and 2 β-Lac MRS isolates were identified from 67 multidrug-resistant Staphylococcus . There were 3, 9, 4, and 19 MRS isolates isolated from the lacrimal sac, cornea, eyelid margin and conjunctival sac, accounting for 3/4, 9/12, 4/8, 19/43 (44.2%) of the isolated sites respectively. There were 1, 3, 3, and 23 β-Lac isolates, accounting for 1/4, 3/12, 3/8 and 23/43 (53.5%) of the isolated sites, respectively. The highest proportion of β-Lac isolates isolated from patients with a diagnosis of conjunctivitis was 17 (25.3%) from the conjunctival sac. Among the MRS strains isolated from the cornea and lacrimal sac, 5 (7.5%) and 3 (4.5%) were from patients diagnosed with bacterial keratitis and neonatal tear, respectively. The number of MRS strains and β-Lac isolates isolated from patients with a diagnosis of blepharitis were both 3 (4.5%) from the lid margin.Among the strains isolated from the eyelid margin and the conjunctival sac, drug-resistant Staphylococcus epidermidis was the main strain, the drug-resistant Staphylococcus aureus was the major isolates in lacrimal sac and cornea. Among the 35 MRS isoaltes, 25, 24, 12, 12, and 11 were sensitive to cefazolin sodium, fusidic acid, levofloxacin, clindamycin and tobramycin, and the sensitivity rates were 71.4%, 68.6%, 34.3%, 34.3% and 31.4%, the difference was statistically significant (χ2=22.756, P<0.001), The sensitivity rates of levofloxacin, tobramycin, cefazolin sodium, fusidic acid and clindamycin against MRS isolates from the anterior segment were both statistically significant differences (χ2=18.493, 11.594, 8.906, 9.841, 16.059; all P<0.05). The susceptibility rates of MRS isolates against five antibiotics was statistically significant differences (χ2=33.080, P<0.001). Among the 30 β-Lac isolates, 27, 22, 19, 16, and 8 were sensitive to cefazolin sodium, fusidic acid, levofloxacin, tobramycin and clindamycin, and the sensitivity rates were 90.0 % , 73.3%, 63.3%, 53.3% and 26.7%, the difference was statistically significant (χ2=28.280, P<0.001). The sensitivity rates of five antibiotics against β-Lac isolates from the anterior segment were both statistically significant differences (χ2=50.971, 24.543, 48.147, 44.899, 18.676; all P<0.001). The susceptibility rates of β-Lac isolates against five antibiotics was statistically significant differences (χ2=23.383, P<0.001). The sensitivity of cefazolin sodium and fusidic acid against β-Lac isolates were higher than MRS isolates. Conclusions: Cefazolin sodium and fusidic acid may be the best choice for the treatment of drug-resistant Staphylococcus isolated from anterior conjunctival sac, cornea, eyelid margin and lacrimal sac, especially for β-Lac-producing drug-resistant Staphylococcus infection.
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Affiliation(s)
- J Yue
- Department of Ophthalmology, Henan Provincial People's Hospital of Ophthalmology, Henan Eye Hospital, Henan Eye Institute, School of Clinical Medicine, Ophthalmology Department of Henan University, People's Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003, China
| | - C M Wang
- Department of Ophthalmology, Henan Provincial People's Hospital of Ophthalmology, Henan Eye Hospital, Henan Eye Institute, School of Clinical Medicine, Ophthalmology Department of Henan University, People's Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003, China
| | - J X Lyu
- Department of Ophthalmology, Henan Provincial People's Hospital of Ophthalmology, Henan Eye Hospital, Henan Eye Institute, School of Clinical Medicine, Ophthalmology Department of Henan University, People's Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003, China
| | - S J Jian
- Department of Ophthalmology, Henan Provincial People's Hospital of Ophthalmology, Henan Eye Hospital, Henan Eye Institute, School of Clinical Medicine, Ophthalmology Department of Henan University, People's Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003, China
| | - Y Y Niu
- Department of Ophthalmology, Henan Provincial People's Hospital of Ophthalmology, Henan Eye Hospital, Henan Eye Institute, School of Clinical Medicine, Ophthalmology Department of Henan University, People's Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003, China
| | - S S Liu
- Department of Ophthalmology, Henan Provincial People's Hospital of Ophthalmology, Henan Eye Hospital, Henan Eye Institute, School of Clinical Medicine, Ophthalmology Department of Henan University, People's Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003, China
| | - S T Sun
- Department of Ophthalmology, Henan Provincial People's Hospital of Ophthalmology, Henan Eye Hospital, Henan Eye Institute, School of Clinical Medicine, Ophthalmology Department of Henan University, People's Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003, China
| | - L Han
- Department of Ophthalmology, Henan Provincial People's Hospital of Ophthalmology, Henan Eye Hospital, Henan Eye Institute, School of Clinical Medicine, Ophthalmology Department of Henan University, People's Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003, China
| | - H M Zhang
- Department of Ophthalmology, Henan Provincial People's Hospital of Ophthalmology, Henan Eye Hospital, Henan Eye Institute, School of Clinical Medicine, Ophthalmology Department of Henan University, People's Hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003, China
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Wang H, Chen LL, Guan YQ, Cao Y, Shen D, Xie KX, Zhang XY, Wang CM, Pei P, Guo Y, Yu M, Chen LM, Li L. [Association between self-reported gingival bleeding and prevalent hypertension among adults in a cross-sectional study in Zhejiang province]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1249-1253. [PMID: 35981987 DOI: 10.3760/cma.j.cn112338-20210922-00744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To explore the association between self-reported gingival bleeding and prevalent hypertension among adults in Zhejiang with a cross-sectional study. Methods: After excluding participants with self-reported, physician-diagnosed heart diseases, stroke, diabetes, cancer, and those who never or rarely brush their teeth at baseline study, 48 625 participants aged 30-79 in the China Kadoorie Biobank (CKB) study from Tongxiang, Zhejiang were included for the final analysis. Three multivariable logistic regression models were used to estimate the odds ratios (ORs) for the associations of self-reported gingival bleeding with prevalent hypertension. Results: The mean age of women was (51.2±9.2) years, and 42.9% of participants had prevalent hypertension. The percentage of self-reported frequent gingival bleeding was 6.56% (95%CI: 6.38%-6.75%), significantly higher among women (8.08%, 95%CI: 7.82%-8.35%) than among men (4.36%, 95%CI: 4.12%-4.60%) (P<0.001). After adjusting for socio-demographic factors, behavioral lifestyle, sleep duration, BMI, waist circumference, snoring, in comparison with men whose gingivae never or rarely bleed while brushing teeth, the odds ratio (95%CI) of hypertension for those with occasional, and frequent gingival bleeding were 1.04 (0.96-1.12) and 1.18 (1.02-1.37), respectively (trend P =0.038). The corresponding figures for women were 0.96 (0.91-1.02) and 0.95 (0.86-1.05), respectively (trend P=0.344). Conclusion: Frequent gingival bleeding was positively associated with prevalent hypertension among men.
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Affiliation(s)
- H Wang
- Department of Non-communicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - L L Chen
- Department of Non-communicable Disease Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - Y Q Guan
- Department of Non-communicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y Cao
- Department of Non-communicable Disease Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - D Shen
- Department of Non-communicable Disease Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - K X Xie
- Department of Non-communicable Disease Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - X Y Zhang
- Department of Non-communicable Disease Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - C M Wang
- Department of Non-communicable Disease Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - P Pei
- China Kadoorie Biobank, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - Y Guo
- National Clinical Center of Cardiovascular Disease, Fuwai Hospital Chinese Academy of Medical Sciences, Beijing 100037, China
| | - M Yu
- Department of Non-communicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - L M Chen
- Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, UK
| | - Liming Li
- School of Public Health, Peking University Health Science Center, Beijing 100191,China Peking University Center for Public Health and Epidemic Preparedness & Response, Beijing 100191,China
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12
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Zhuang JM, Li TR, Li X, Luan JY, Wang CM, Feng QC, Han JT. [Application of mechanical debulking in arteriosclerosis occlusive disease of lower extremity]. Zhonghua Wai Ke Za Zhi 2022; 60:762-766. [PMID: 35790529 DOI: 10.3760/cma.j.cn112139-20211022-00498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To evaluate the effect of mechanical debulking in treating arteriosclerosis occlusive disease of lower extremity. Methods: The clinical data of 52 arteriosclerosis occlusive disease of lower extremity cases treated with Rotarex mechanical debulking system from June 2017 to June 2020 at Department of Intervention Vascular Surgery,Peking University Third Hospital were retrospectively analyzed. There were 37 males and 15 females,aged(69.4±10.1)years(range:47 to 89 years).Lesion length was (21.6±12.9)cm(range:4 to 45 cm),occlusion length was (18.5±11.8)cm(range:4 to 45 cm).The lesion was located in iliac artery(IA) in 6 cases,femoral-popliteal artery(FPA) in 42 cases,and both IA and FPA in 4 cases. All the cases were treated with Rotarex mechanical debulking system. Residual stenosis more than 50% were treated with percutaneous transluminal angioplasty(PTA).Drug coated balloon was used in part of them,and stent was used only when it was necessary. The patient's operation, complications, postoperative target vessel restenosis and reoperation were collected. The paired sample t test and rank sum test was used for data comparison and the postoperative target vessel patency rate was analyzed by Kaplan-Meier survival curve. Results: All the 52 cases obtained technical success. Percutaneous transluminal angioplasty was used in all cases,and drug coated balloon were used in 11 cases. Twenty-six stents were implanted in 24 cases (2 cases implanted 2 stents).Nine stents were implanted in IA and 15 in FPA. The length of stents was (11.3±3.3)cm(range:6 to 23 cm).There were 3 procedure related complications: one of them was acute occlusion in an iliac lesion,and thrombectomy was applied urgently,and the result was good. And the other two were distal embolism. The thrombus were took out with guiding catheter. The hospital stay was (4.8±1.9)days. The ankle brachial index increased from 0.34±0.16 to 0.81±0.16 after treatment(t=-25.160,P<0.01).The Rutherford stages decreased from (M(IQR)) 3(1) to 1(1(Z=-6.825,P<0.01).The median followed up time was 19 months(range:6 to 42 months).Two cases stopped antiplatelet agents during follow-up and which result in acute thrombosis 2 weeks and 2 months later respectively. One of them was treated with percutaneous mechanical thrombectomy and the other one was not for gastrointestinal hemorrhage. Four cases died during follow-up,one case died of lung cancer,one died of abdominal infection,and the other 2 cases died of cardiovascular disease,and no amputation was observed. Target lesion restenosis(TLR) more than 50% occurred in 13 cases during the follow-up. All TLR were observed in FPA,and target lesion revascularization was taken in 3 of them. According to Kaplan-Meier survival curve analysis,half-year,1-year and 2-year cumulative patency rates of target vessels in this group was 94.2%,87.4% and 51.4%, respectively. And half-year and 1-year cumulative patency rates just in FPA cases was 92.9% and 84.3%, respectively. Conclusions: Percutaneous mechanical debulking using Rotarex catheter combining PTA can reduce the use of stents in femoral-popliteal artery. It is safe and effective in treating with arteriosclerosis obliterans of lower extremity.
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Affiliation(s)
- J M Zhuang
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - T R Li
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - X Li
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - J Y Luan
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - C M Wang
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - Q C Feng
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - J T Han
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
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Wang CM, Xu CY, Jiang S, Zhou Q, Jiang ZJ, Cheng GP, Wu MJ, Feng TT, Yin WJ. [Pathological features related to onco-immunity and their clinical significance of pancreatic ductal adenocarcinoma]. Zhonghua Bing Li Xue Za Zhi 2022; 51:419-424. [PMID: 35511637 DOI: 10.3760/cma.j.cn112151-20210902-00641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the tumor immunity-related pathologic features and clinical significance in pancreatic ductal adenocarcinoma (PDAC). Methods: All pathologic materials and clinical information of 192 PDAC patients from the Cancer Hospital of the University of Chinese Academy of Sciences from January 2010 to December 2020 were collected. The onco-immune microenvironment associated morphologic features were evaluated, and MHC-Ⅰ, PD-L1, CD3, and CD8 expression were detected by immunohistochemistry (IHC). Then the correlation between the factors and their influence on prognosis was analyzed. Results: There were 163 cases of non-specific adenocarcinoma (163/192, 84.90%), 18 cases of adeno-squamous carcinoma (18/192, 9.37%), and 11 cases of other rare subtypes (11/192, 5.73%). Perineural invasion was observed in 110 cases (110/192, 57.29%) and vascular invasion in 86 cases (86/192, 44.79%). There were 84 cases (84/182, 46.15%) with severe chronic inflammation. Tumor infiltrating immune cell numbers (TII-N) were increased in 52 cases (52/192, 27.08%). Lymphocytes and plasma cells were the main infiltrating immune cells in 60 cases (60/192, 31.25%), whereas in 34 cases (34/192, 17.71%) the tumors were mainly infiltrated by granulocytes, and 98 cases (98/192, 51.04%) showed mixed infiltration. CD3+T cells were deficient in 124 cases (124/192, 66.31%). CD8+T cells were deficient in 152 cases (152/192, 79.58%). MHC-Ⅰ expression was down-regulated in 156 cases (156/192, 81.25%), and PD-L1 was positive (CPS≥1) in 46 cases (46/192, 23.96%). Statistical analysis showed that TII-N was negatively correlated with vascular invasion (P=0.035), perineural invasion (P=0.002), stage (P=0.004) and long-term alcohol consumption (P=0.039). The type of immune cells correlated positively with chronic pancreatic inflammation (P=0.002), and negatively with tumor differentiation (P=0.024). CD8+T cells were positively correlated with CD3+T cells (P=0.032), MHC-Ⅰ expression (P<0.001) and PD-L1 expression (P=0.001), and negatively correlated with long-term smoking (P=0.016). Univariate analysis showed that histological nonspecific type (P=0.013) and TII-N (P<0.001) were the factors for good prognosis. Vascular invasion (P=0.032), perineural invasion (P=0.001), high stage (P=0.003) and long-term alcohol consumption (P=0.004) were adverse prognostic factors. COX multivariate risk analysis found that TII-N was an independent favorable factor for PDAC, while perineural invasion was an independent adverse risk factor. Conclusions: TII-N is an independent superior prognostic factor for PDAC, and significantly correlated with many factors; chronic alcohol consumption and smoking may inhibit onco-immunity in PDAC patients.
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Affiliation(s)
- C M Wang
- Department of Pathology, the Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
| | - C Y Xu
- Department of Oncology, the First Clinical School of Wenzhou Medical University, Wenzhou 325035, China
| | - S Jiang
- Department of Pathology, Chinese Medical Hospital of Haining, Haining 314400, China
| | - Q Zhou
- Department of Pathology, the First Hospital of Xiaoshan District, Hangzhou 311201, China
| | - Z J Jiang
- Department of Pathology, the First Hospital of Fuyang District, Hangzhou 311499, China
| | - G P Cheng
- Department of Pathology, the Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
| | - M J Wu
- Department of Pathology, the Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
| | - T T Feng
- Department of Abdominal Medical Oncology, the Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
| | - W J Yin
- Department of Pathology, the Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
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Wu YX, Wang CM, Xu L, Tang YF, Wu PT, Zhang Y, Xu Z. [Characteristics of slow wave activity of sleep electroencephalogram and the changes of slow wave activity after adenotonsillectomy in children with severe obstructive sleep apnea]. Zhonghua Yi Xue Za Zhi 2022; 102:544-549. [PMID: 35196775 DOI: 10.3760/cma.j.cn112137-20210527-01218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the characteristics of slow wave activity (SWA) during sleep and the changes of SWA after adenotonsillectomy in children with severe obstructive sleep apnea (OSA). Methods: A total of 24 children with severe OSA, who completed adenotonsillectomy in Sleep Center of Beijing Children's Hospital and 26 control children category matched for age and sex and excluded from OSA were included as subjects from May 2018 to December 2019. The subjects underwent overnight PSG, as well as SWA analysis of sleep electroencephalogram. The differences of PSG indexes and SWA intensity between children with severe OSA and control children, before and after operation in severe OSA children were compared and the correlations between SWA intensity and PSG indexes were analyzed. Results: The age of the children with severe OSA before surgery was (6.1±1.7) years, including 20 males (83.3%), and the interval M(Q1,Q3) between surgery and follow-up was 6.3 (5.8, 7.1) months. The age of the control children was (6.2±1.1) years, including 20 males (76.9%). In severe OSA group, the M (Q1,Q3) of non-rem sleep stage 1 to total sleep time, obstructive apnea hypopnea index, oxygen desaturation index (ODI) and proportion of oxygen saturation (SpO2)<90% during night sleep to total sleep time were 6.8% (5.6%, 8.9%), 1.2 (0.4, 2.4) events/h, 2.1 (0.7, 4.3) events/h and 0(0, 0) after surgery, respectively, which were lower than those before surgery [9.1% (7.5%, 16.8%), 21.6 (14.1, 39.5) events/h, 23.1 (10.2, 36.0) events/h and 0.8% (0, 3.9%), respectively], while non-rem sleep stage 3 to total sleep time%, rem sleep stage to total sleep time% and lowest SpO2 were (24.3±5.7)%, (19.1±3.7)% and 91%(86%, 94%) after surgery, which were higher than those before operation [(19.0±5.3)%, (15.4±3.9)% and 83%(70%, 88%) respectively] (all P values<0.05). The repeated measure ANOVA of SWA intensity in phase N1 showed no interaction between OSA and sleep time course (F=0.02, P=0.997), the main effect of OSA was statistically significant (F=5.12, P=0.040), SWA intensity in children with severe OSA at stage N1 was higher than that of the control group [SWA(severe OSA group before surgery-control group)(95%CI): 0.379,(0.020, 0.739)], while the main effect of sleep time course was not statistically significant (F=1.66, P=0.191). There was no interaction between adenotonsillectomy and sleep time course (F=0.88,P=0.461), the main effect of surgery was statistically significant (F=8.95, P=0.010), SWA intensity of children with severe OSA at N1 stage after surgery was lower than before [SWA(after surgery-before surgery)(95%CI):-0.572(-0.982, -0.162)] and the main effect of sleep time course was statistically significant (F=6.33, P=0.001). The intensity of SWA in the fourth sleep cycle of N1 stage was positively correlated with ODI (r=0.299, P=0.048). Conclusion: The intensity of slow-wave activity at N1 stage is affected by OSA which might be caused by intermittent hypoxia, and adenotonsillectomy significantly reduces SWA intensity at stage N1.
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Affiliation(s)
- Y X Wu
- Beijing Key Laboratory of Pediatric Diseases of Otolaryngology, Head and Neck Surgery, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - C M Wang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - L Xu
- College of Electronic and Information Engineering, Southwest University, Chongqing, 400715, China
| | - Y F Tang
- Department 1 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - P T Wu
- Department 1 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y Zhang
- College of Electronic and Information Engineering, Southwest University, Chongqing, 400715, China
| | - Zhifei Xu
- Department 1 of Respiratory Medicine, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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Wang CM, Liu HF, Zhang M, Shi L, Cui M, Wu ST, Tian JR, Zhang YD. [Effect of metformin combined with intermittent fasting on endoplasmic reticulum stress after cerebral ischemia-reperfusion in mice]. Zhonghua Yi Xue Za Zhi 2022; 102:363-369. [PMID: 35092978 DOI: 10.3760/cma.j.cn112137-20210620-01393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the effect of metformin combined with intermittent fasting on endoplasmic reticulum stress after cerebral ischemia-reperfusion injury in mice. Methods: One hundred 10-Week-old healthy KM mice of SPF grade, weighing 25-28 g, were divided into 5 groups by the random number table method: sham group, focal cerebral ischemia group (I/R group), intermittent fasting group (IF group), metformin group (Met group), metformin+intermittent fasting group (Met+IF group). In IF group, food was provided ad libitum from 8∶00 to 16∶00 daily, but the mice were fasted for the rest of the time. In Met group, the mice underwent intraperitoneal injection of metformin (10 mg/kg). In Met+IF group, the mice received the same eating method as the IF group and the same method of metformin injection as Met Group. In Sham group, I/R group and IF group, the mice were intraperitoneally injected with equal volume of normal saline. Mice in all groups were not restricted to drinking water. Random plasma glucose and body weight changes in mice during preconditioning were monitored, and a focal cerebral ischemia-reperfusion model was established 14 days later. The cerebral infarction volume was measured after 1 hour of ischemia and 24 hours of reperfusion. The brain tissues of mice were subjected to Western blot to detect the contents of endoplasmic reticulum stress-related proteins, including glucose-regulated protein 78 (GRP78), C/EBP homologous protein (CHOP), and apoptosis proteins (Caspase-3 and Cleaved-caspase 3). Results: After different interventions, there was no significant difference in random plasma glucose changes among the four groups (all P<0.05). The blood glucose level of the mice in the Met+IF group was lower than the sham group, I/R group, IF group and Met group (all P<0.05). GRP78/β-actin in sham group, I/R group, IF group, Met group, IF+Met group were 0.48±0.05, 1.35±0.10, 0.94±0.05, 0.70±0.14, 0.41±0.37, respectively; CHOP/β-actin were 0.27±0.04, 1.03±0.03, 0.72±0.04, 0.63±0.04, 0.44±0.01, respectively; Caspase-3/β-actin were 0.51±0.04, 1.04±0.04, 0.83±0.03, 0.76±0.03, 0.63±0.05, respectively; Cleaved-Caspase-3/β-actin were 0.17±0.06, 1.01±0.20, 0.75±0.06, 0.51±0.12, 0.29±0.08, respectively, with statistically significant differences (all P<0.001). The counts of GRP78-positive cells in the hippocampus immunohistochemistry in the sham group, I/R group, IF group, Met group, and IF+Met group were 53±5, 192±11, 162±12, 140±10, 114±13, respectively, while the counts of CHOP-positive cells were 35±4, 177±12, 120±12, 100±7, 69±10, respectively, with statistically significant differences (all P<0.001). The relative volume of cerebral infarction in I/R group, IF group, Met group and IF+Met group were 0, 0.333±0.046, 0.258±0.023, 0.116±0.039, 0.111±0.039, respectively, and there were statistically significant differences (all P<0.001). Conclusion: Both Metformin and intermittent fasting can alleviate endoplasmic reticulum stress after cerebral ischemia and reperfusion in mice, and the combination of the two has a better effect.
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Affiliation(s)
- C M Wang
- Advanced Medical Center of Zhengzhou Central Hospital,Zhengzhou 450007,China
| | - H F Liu
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M Zhang
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L Shi
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - M Cui
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S T Wu
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J R Tian
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y D Zhang
- Department of Neurology, the Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Chen G, Wang CM. Optical conductivities in triple fermions with different monopole charges. J Phys Condens Matter 2021; 34:105303. [PMID: 34823239 DOI: 10.1088/1361-648x/ac3d55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 11/25/2021] [Indexed: 06/13/2023]
Abstract
We investigate the linear optical conductivities of the newly-discovered triple-component semimetals. Due to the exactly flat band, the optical conductivity relates to the transition between the zero band and the conduction band directly reflecting the band structure of the conduction electrons in contrast to the other materials. For the low-energy models with various monopole charges, the diagonal conductivities show strong anisotropy. Theω-dependence of interband conductivities for a general low-energy model is deduced. The real part of the interbandσxxalways linearly depends on the optical frequency, while the one ofσzzis proportional toω2/n-1. This can be a unique fingerprint of the monopole charge. For the lattice models, there also exists the optical anomalous Hall conductivity, where a sign change may appear. The characteristic frequencies of the kink structures are calculated, strictly. Our work will help us to establish the basic picture of linear optical response in topological triple-component semimetals and identify them from other materials.
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Affiliation(s)
- G Chen
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - C M Wang
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
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17
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Abstract
The nonlinear Hall effect is an unconventional response, in which a voltage can be driven by two perpendicular currents in the Hall-bar measurement. Unprecedented in the family of the Hall effects, it can survive time-reversal symmetry but is sensitive to the breaking of discrete and crystal symmetries. It is a quantum transport phenomenon that has deep connection with the Berry curvature. However, a full quantum description is still absent. Here we construct a quantum theory of the nonlinear Hall effect by using the diagrammatic technique. Quite different from nonlinear optics, nearly all the diagrams account for the disorder effects, which play decisive role in the electronic transport. After including the disorder contributions in terms of the Feynman diagrams, the total nonlinear Hall conductivity is enhanced but its sign remains unchanged for the 2D tilted Dirac model, compared to the one with only the Berry curvature contribution. We discuss the symmetry of the nonlinear conductivity tensor and predict a pure disorder-induced nonlinear Hall effect for point groups C3, C3h, C3v, D3h, D3 in 2D, and T, Td, C3h, D3h in 3D. This work will be helpful for explorations of the topological physics beyond the linear regime.
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Affiliation(s)
- Z Z Du
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen, China
| | - C M Wang
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen, China
- Department of Physics, Shanghai Normal University, Shanghai, China
| | - Hai-Peng Sun
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen, China
| | - Hai-Zhou Lu
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen, China.
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen, China.
| | - X C Xie
- International Center for Quantum Materials, School of Physics, Peking University, Beijing, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing, China
- Beijing Academy of Quantum Information Sciences, Beijing, China
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Chen R, Liu T, Wang CM, Lu HZ, Xie XC. Field-Tunable One-Sided Higher-Order Topological Hinge States in Dirac Semimetals. Phys Rev Lett 2021; 127:066801. [PMID: 34420339 DOI: 10.1103/physrevlett.127.066801] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Recently, higher-order topological matter and 3D quantum Hall effects have attracted a great amount of attention. The Fermi-arc mechanism of the 3D quantum Hall effect proposed to exist in Weyl semimetals is characterized by the one-sided hinge states, which do not exist in all the previous quantum Hall systems, and more importantly, pose a realistic example of the higher-order topological matter. The experimental effort so far is in the Dirac semimetal Cd_{3}As_{2}, where, however, time-reversal symmetry leads to hinge states on both sides of the top and bottom surfaces, instead of the aspired one-sided hinge states. We propose that under a tilted magnetic field, the hinge states in Cd_{3}As_{2}-like Dirac semimetals can be one sided, highly tunable by field direction and Fermi energy, and robust against weak disorder. Furthermore, we propose a scanning tunneling Hall measurement to detect the one-sided hinge states. Our results will be insightful for exploring not only the quantum Hall effects beyond two dimensions, but also other higher-order topological insulators in the future.
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Affiliation(s)
- Rui Chen
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
- School of Physics, Southeast University, Nanjing 211189, China
| | - Tianyu Liu
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Max-Planck-Institut für Physik komplexer Systeme, 01187 Dresden, Germany
| | - C M Wang
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
- Department of Physics, Shanghai Normal University, Shanghai 200234, China
| | - Hai-Zhou Lu
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - X C Xie
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Beijing Academy of Quantum Information Sciences, Beijing 100193, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
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Wang CM, Yan T, Xie KL, Chang SH, Zhang C, Hou FJ. Determination of maintenance energy requirement and responses of dry ewes to dietary inclusion of lucerne versus concentrate meal. Animal 2021; 15:100200. [PMID: 34029796 DOI: 10.1016/j.animal.2021.100200] [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: 04/16/2020] [Revised: 01/31/2021] [Accepted: 02/02/2021] [Indexed: 11/25/2022] Open
Abstract
An accurate value for metabolizable energy (ME) requirement for maintenance (MEm) is essential to enable sheep husbandry practice to reach its potential. The objectives of the study were to use calorimetry chamber data of dry ewes (Hu × thin-tail Han F1 crossbred) to develop updated MEm, examine effects of substituting concentrate feed with lucerne hay on energy partitioning, and explore the relationships between energy utilization and fasting heat production (FHP). Data were collected from three experiments. In Exps. 1, 2a and 2b, lucerne hay was used to replace concentrates in three levels (0:40%, 15:25% and 30:10%), with diets containing 60% maize stover (Exp. 1), fresh rye forage (Exp. 2a) or dry rye forage (Exp. 2b). Within each experiment, diets were isoenergetic (digestible energy, DE) and isonitrogenous. Exp. 3 aimed at evaluating effects of three BW levels on nutrient utilization of dry ewes offered diets containing 60% maize stover, 15% lucerne hay and 25% concentrates. Energy metabolism data were measured using the respiration calorimeter chamber technique in all three experiments, followed by the measurement of FHP in Exps. 1, 2b and 3. The MEm derived from the linear regression between energy balance (EB) and ME intake was 0.440 MJ/kg BW0.75. The average FHP was 0.326 MJ/kg BW0.75. The fasting metabolism, net energy requirement for maintenance (NEm) and MEm were estimated to be 0.336, 0.359 and 0.511 MJ/kg BW0.75, respectively, through adjustment of FHP using fasting urinary energy output, activity allowance and efficiency of ME use for maintenance. The FHP was negatively correlated to EB/metabolic BW, ME/gross energy (GE), ME/DE, EB/GE intake and EB/ME intake, while positively correlated to HP/GE intake, HP/ME intake and CH4-E/GE intake. Compared to zero lucerne hay diet, the 15% lucerne hay intake decreased HP (MJ/d), and had no negative effects on EB (MJ/d) or energy utilization efficiencies. The results indicate that nutrient requirement standards currently used across the world are likely to underestimate MEm for dry ewes, and the selection of low FHP ewes for breeding has the potential to improve sheep production efficiency.
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Affiliation(s)
- C M Wang
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, Gansu, China
| | - T Yan
- Agri-Food and Biosciences Institute, Hillsborough, Co Down BT26 6DR, United Kingdom
| | - K L Xie
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, Gansu, China
| | - S H Chang
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, Gansu, China
| | - C Zhang
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, Gansu, China
| | - F J Hou
- State Key Laboratory of Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, Gansu, China.
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20
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Wu J, Wang CM. Anisotropic magnetotransport in tilted magnetic topological semimetals. J Phys Condens Matter 2021; 33:165701. [PMID: 33498034 DOI: 10.1088/1361-648x/abdff5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
We systematically investigate the anisotropic magneto-conductivity and planar Hall effect in tilted magnetic topological semimetals in the frame of Kubo formula by considering the vertex correction of velocity. The nonzero anisotropic magneto-conductivity is due to the intrinsic magnetization by magnetic doping rather than the external magnetic field previously studied in literatures. In the scenario, tilt, which is common in band structure, plays a key role in this anisotropic magneto-conductivity. This anisotropic magneto-conductivity completely originates from the band anisotropy. The vertex correction only amends the magnitude, but does not change the qualitative behavior of the longitudinal conductivity. However, the planar Hall conductivity is always zero for tilt along bothxandydirections in vivid contrast to the case arising from an external magnetic field. Our work offers a route to understand the anisotropic magneto-conductivity effect in tilted Weyl semimetals with Zeeman field. It will be helpful to get a deeper understanding of the transport characteristic in tilted topological semimetals.
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Affiliation(s)
- J Wu
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
| | - C M Wang
- Department of Physics, Shanghai Normal University, Shanghai 200234, People's Republic of China
- Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, People's Republic of China
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21
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Qin F, Li S, Du ZZ, Wang CM, Zhang W, Yu D, Lu HZ, Xie XC. Theory for the Charge-Density-Wave Mechanism of 3D Quantum Hall Effect. Phys Rev Lett 2020; 125:206601. [PMID: 33258643 DOI: 10.1103/physrevlett.125.206601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 09/23/2020] [Indexed: 06/12/2023]
Abstract
The charge-density-wave (CDW) mechanism of the 3D quantum Hall effect has been observed recently in ZrTe_{5} [Tang et al., Nature 569, 537 (2019)10.1038/s41586-019-1180-9]. Different from previous cases, the CDW forms on a one-dimensional (1D) band of Landau levels, which strongly depends on the magnetic field. However, its theory is still lacking. We develop a theory for the CDW mechanism of 3D quantum Hall effect. The theory can capture the main features in the experiments. We find a magnetic field induced second-order phase transition to the CDW phase. We find that electron-phonon interactions, rather than electron-electron interactions, dominate the order parameter. We extract the electron-phonon coupling constant from the non-Ohmic I-V relation. We point out a commensurate-incommensurate CDW crossover in the experiment. More importantly, our theory explores a rare case, in which a magnetic field can induce an order-parameter phase transition in one direction but a topological phase transition in other two directions, both depend on one magnetic field.
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Affiliation(s)
- Fang Qin
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- CAS Key Laboratory of Quantum Information, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, Anhui 230026, China
- Shenzhen Municipal Key-Lab for Advanced Quantum Materials and Devices, Shenzhen 518055, China
| | - Shuai Li
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
| | - Z Z Du
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - C M Wang
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
- Department of Physics, Shanghai Normal University, Shanghai 200234, China
| | - Wenqing Zhang
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Municipal Key-Lab for Advanced Quantum Materials and Devices, Shenzhen 518055, China
| | - Dapeng Yu
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - Hai-Zhou Lu
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology (SUSTech), Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - X C Xie
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100190, China
- Beijing Academy of Quantum Information Sciences, West Building 3, No. 10, Xibeiwang East Road, Haidian District, Beijing 100193, China
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22
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Hu XQ, Tang Y, Ju Y, Zhang XY, Yan JJ, Wang CM, Yang Y, Zhu C, Tang ZX, Zhou Y, Yu G. Scratching damages tight junctions through the Akt-claudin 1 axis in atopic dermatitis. Clin Exp Dermatol 2020; 46:74-81. [PMID: 32668051 DOI: 10.1111/ced.14380] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 07/01/2020] [Accepted: 07/09/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Atopic dermatitis (AD) is a common, chronic, severely pruritic, eczematous skin disease that seriously deteriorates the quality of life of patients. Scratching is a cardinal symptom of AD. Although the vicious itch-scratch cycle continues and aggravates skin barrier dysfunction in AD, how scratching induces skin barrier dysfunction through tight junctions remains unclear. AIM To study the effect of scratching on tight junctions in the itch-scratch cycle. METHODS Scratching behaviour and skin barrier dysfunction on the neck and back in an AD mouse model were assessed. The expression of tight junction proteins was compared between the neck and back mice, and the mechanisms underlying the involvement of Akt/CLDN1 pathways in this process were explored. RESULTS We used oxazolone to induce AD on the neck or back of mice. There was significantly more scratching behaviour and more pronounced skin barrier dysfunction with the neck than with the back. Downregulation of claudin-1 (CLDN1) and upregulation of Akt phosphorylation in skin were well correlated with scratching behaviour in this AD model. Furthermore, SC79, an agonist of Akt phosphorylation, could downregulate CLDN1 expression in HaCaT cells. An antagonist of Akt phosphorylation (LY294002) was used to treat the AD mice; this treatment rescued CLDN1 expression through inhibiting Akt phosphorylation in skin, and importantly, also inhibited the scratching behaviour induced by AD. CONCLUSION The results reveal the underlying mechanism of tight junction damage promoted by scratching in the itch-scratch cycle of AD, and opens a new avenue to pruritus management in AD, through Akt antagonists.
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Affiliation(s)
- X Q Hu
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Key Laboratory for Chinese Medicine of Prevention and Treatment in Neurological Diseases, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Y Tang
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Key Laboratory for Chinese Medicine of Prevention and Treatment in Neurological Diseases, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Y Ju
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Key Laboratory for Chinese Medicine of Prevention and Treatment in Neurological Diseases, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - X Y Zhang
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Key Laboratory for Chinese Medicine of Prevention and Treatment in Neurological Diseases, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - J J Yan
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Key Laboratory for Chinese Medicine of Prevention and Treatment in Neurological Diseases, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - C M Wang
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Y Yang
- Key Laboratory for Chinese Medicine of Prevention and Treatment in Neurological Diseases, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - C Zhu
- Key Laboratory for Chinese Medicine of Prevention and Treatment in Neurological Diseases, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Z X Tang
- Key Laboratory for Chinese Medicine of Prevention and Treatment in Neurological Diseases, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Y Zhou
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Key Laboratory for Chinese Medicine of Prevention and Treatment in Neurological Diseases, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - G Yu
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Key Laboratory for Chinese Medicine of Prevention and Treatment in Neurological Diseases, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
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23
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Yue J, Lyu JX, Si W, Wang CM, Liu SS, Xie YT, Han L, Sun ST, Zhang HM. [Comparison study on sensitivity of five ophthalmic antibiotics to common drug-resistant Staphylococci on ocular surface]. Zhonghua Yan Ke Za Zhi 2020; 56:621-625. [PMID: 32847338 DOI: 10.3760/cma.j.cn112142-20191014-00517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To investigate the in vitro antibacterial sensitivity of levofloxacin, tobramycin, cefazolin sodium, clindamycin and fusidic acid to 67 strains of Staphylococci in ocular surface infection. The purpose of this study is to provide reference for clinical selection of drugs. Methods: Experimental study. Sixth-seven strains of drug-resistant Staphylococci isolated from the Department of Microbiology, Henan Provincial Ophthalmic Hospital during January 2018 and May 2019 were collected. There were 67 strains of Staphylococci including 28 strains of drug-resistant Staphylococcus epidermidi, 17 strains of drug-resistant Staphylococcus aureus, 15 strains of drug-resistant Staphylococcus intermedius and a few other kinds of drug-resistant Staphylococci. The minimum inhibitory concentrations (minimum inhibitory concentration, MIC) of levofloxacin, tobramycin, cefazolin sodium, clindamycin and fusidic acid in 67 strains of drug-resistant Staphylococci were determined by microliquid-based method. The sensitivity was determined according to the American CLSI-M100 standard. The statistical analysis of the data was carried out by using two-dimensional test and Fisher accurate test. Results: Fourteen strains of fusidic acid were sensitive to 17 strains of MRS-Meca-resistant Staphylococcus epidermidis, the difference between fusidic and levofloxacin is statistically significant; 14 strains of cefazolin sodium and 11 strains of fusidic acid were sensitive to 14 strains of β-Lac enzyme-producing Staphylococcus aureus, and there were significant differences between the two drugs and levofloxacin; 6 strains of cefazolin sodium and 5 strains of fusidic acid were sensitive to 10 strains of MRS-Meca-resistant Staphylococcus intermedius, as compared to levofloxacin, there were significant differences between cefazolin sodium and levofloxacin (P=0.011,0.033). Cefazolin sodium was sensitive to 5 strains of MRS-Meca-positive other drug-resistant Staphylococci, which was significantly different from levofloxacin (P=0.048); 54 and 48 strains of cefazolin sodium and fusidic acid were sensitive to 67 strains of drug-resistant Staphylococci, and the sensitive rates were 80.1% and 71.6%, respectively, which were significantly higher than those of levofloxacin, tobramycin and clindamycin. There were significant statistical differences between drug sensitivity (χ²=18.377,9.940;P=0.000,0.003). Conclusions: The sensitivity of cefazolin sodium and fusidic acid to 67 strains of drug-resistant Staphylococci is better than that of levofloxacin, tobramycin and clindamycin, these findings may provide guidance for the clinical treatment of drug-resistant Staphylococci in ocular infection. (Chin J Ophthalmol, 2020, 56: 621-625).
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Affiliation(s)
- J Yue
- Henan Provincial People's Hospital of Ophthalmology, Henan Provincial Ophthalmology Hospital & Henan Institute of Ophthalmology, School of Clinical Medicine, Henan University, People's hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003,China
| | - J X Lyu
- Henan Provincial People's Hospital of Ophthalmology, Henan Provincial Ophthalmology Hospital & Henan Institute of Ophthalmology, School of Clinical Medicine, Henan University, People's hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003,China
| | - W Si
- Henan Provincial People's Hospital of Ophthalmology, Henan Provincial Ophthalmology Hospital & Henan Institute of Ophthalmology, School of Clinical Medicine, Henan University, People's hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003,China
| | - C M Wang
- Henan Provincial People's Hospital of Ophthalmology, Henan Provincial Ophthalmology Hospital & Henan Institute of Ophthalmology, School of Clinical Medicine, Henan University, People's hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003,China
| | - S S Liu
- Henan Provincial People's Hospital of Ophthalmology, Henan Provincial Ophthalmology Hospital & Henan Institute of Ophthalmology, School of Clinical Medicine, Henan University, People's hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003,China
| | - Y T Xie
- Henan Provincial People's Hospital of Ophthalmology, Henan Provincial Ophthalmology Hospital & Henan Institute of Ophthalmology, School of Clinical Medicine, Henan University, People's hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003,China
| | - L Han
- Henan Provincial People's Hospital of Ophthalmology, Henan Provincial Ophthalmology Hospital & Henan Institute of Ophthalmology, School of Clinical Medicine, Henan University, People's hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003,China
| | - S T Sun
- Henan Provincial People's Hospital of Ophthalmology, Henan Provincial Ophthalmology Hospital & Henan Institute of Ophthalmology, School of Clinical Medicine, Henan University, People's hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003,China
| | - H M Zhang
- Henan Provincial People's Hospital of Ophthalmology, Henan Provincial Ophthalmology Hospital & Henan Institute of Ophthalmology, School of Clinical Medicine, Henan University, People's hospital of Zhengzhou University, Henan Provincial Key Laboratory of Ophthalmology and Visual Science, Zhengzhou 450003,China
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Zhou LP, Qiu F, Zhang ZF, Wang CM, Dong YL, Liu JP. SYNTHESIS, CRYSTAL STRUCTURE, ANTI-LUNG
CANCER ACTIVITY OF 2-(4-FLUOROPHENYL)-5-
(5-IODO-2-METHYLBENZYL)THIOPHENE. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620070148] [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]
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25
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Xie KX, Wang CM, Chen LL, Cao Y, Shen D, Hu RY, Wang H, Zhong JM, Yu M. [Association between snoring and hypertension among Zhejiang adults in a cross sectional study]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:722-726. [PMID: 32447914 DOI: 10.3760/cma.j.cn112338-20190814-00596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the association between snoring and prevalent hypertension among adults in Zhejiang with a cross-sectional study. Methods: After excluding participants with self-reported, physician-diagnosed heart diseases, stroke and cancer at baseline study, 56 728 participants aged 30-79 in the China Kadoorie Biobank study from Tongxiang, Zhejiang were included for the final analysis. Three multivariable logistic regression models were used to estimate the ORs for the associations of snoring with prevalent hypertension. Results: The proportion of participants who snored frequently, snored sometimes, and never snored were 24.55%, 23.94%, and 51.51%, respectively. The corresponding figures of males were 32.40%, 26.55%, and 41.05%, respectively. The corresponding figures of females were 19.00%, 22.08%, and 58.92%, respectively (P<0.001). After adjusted socio-demographic factors, behavioral lifestyle, BMI, waist circumference, and sleep duration etc., in comparison with participants who never snored, the odds ratios (95%CI) of hypertension for those who snored frequently and snored sometimes were 1.17 (1.12-1.23) and 1.12 (1.07-1.18), respectively. The effects of snoring on hypertension were statistically significantly different between women and men, participants who were central obese and those who were not, and between premenopausal and post-menopausal women. Conclusion: Snoring was associated positively with hypertension among adults. The effect of snoring on prevalent hypertension were obvious, especially among people, being female, being central obese, and being premenopausal.
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Affiliation(s)
- K X Xie
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - C M Wang
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - L L Chen
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - Y Cao
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - D Shen
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - R Y Hu
- Department of Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - H Wang
- Department of Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - J M Zhong
- Department of Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - M Yu
- Department of Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
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Feng HC, Wang CM, Tang MZ, Wu XJ, Zhou ZC, Wei MD, He W, Li SJ, Zeng ZK, He BH. Antidepressant effect of total saponins of Radix Bupleuri and the underlying mechanism on a mouse model of depression. J BIOL REG HOMEOS AG 2020; 34:1097-1103. [PMID: 32648408 DOI: 10.23812/20-181-l-21] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- H C Feng
- Department of Pharmacy, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - C M Wang
- Department of Pharmacy, Shenzhen University General Hospital, Shenzhen, Guangdong, China
| | - M Z Tang
- Department of Pharmacy, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - X J Wu
- Department of Biology, East Carolina University, Greenville, NC, United States, USA
| | - Z C Zhou
- Department of Ciai, Home for The Aged Guangzhou, Guangzhou, Guangdong, China
| | - M D Wei
- Department of Pharmacy, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - W He
- Department of Pharmacy, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - S J Li
- Department of Pharmacy, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - Z K Zeng
- Department of Pharmacy, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
| | - B H He
- Department of Pharmacy, The Third Affiliated Hospital, Southern Medical University, Guangzhou, Guangdong, China
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Guo LH, Zhong JM, Fang L, Chen XY, Gong WW, Xie KX, Wang CM. [Evaluation on the effect of comprehensive intervention combined with clinical preventive services and lifestyle adjustment among high-risk populations of cardiovascular disease in Tongxiang City]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:411-415. [PMID: 32268649 DOI: 10.3760/cma.j.cn112150-20190606-00453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the effect of comprehensive intervention combined with clinical preventive services and lifestyle adjustment on high-risk populations of cardiovascular disease. Methods: In 2015, 4 towns (streets) in Tongxiang City, of Zhejiang Province including Heshan Town, Longxiang Street, Wutong Street, and Fengming Street, were selected by using the typical sampling. The towns (streets) were allocated to the intervention group (Heshan Town and Longxiang Street) and the control group (Wutong Street and Fengming Street) by using the cluster random sampling. In each town (street), hypertension patients aged 50 to 74 years old who were taking community medicine management and with a 10-year cardiovascular disease risk ≥10% were recruited as subjects. There were 1 823 subjects in the intervention group and 1 883 in the control group. The intervention group was given a 1-year comprehensive intervention combining clinical preventive services and lifestyle adjustment, while the control group received routine chronic disease management. After the intervention, the final questionnaire investigation was conducted and health physical examination data were obtained. The death, acute coronary heart disease events and stroke incidence were the primary outcomes, and cardiovascular disease-related knowledge and behavior, clinical preventive services utilization, physical changes, blood fat index and 10-year cardiovascular disease risk were the secondary outcomes. The difference-in-difference model was used to evaluate the effects of interventions. Results: The age of subjects in the intervention and control group was (68.76±3.75) and (67.90±4.56) years old, respectively. After 1-year intervention, the incidence of mortality, acute coronary events and stroke in intervention group was 1.65% (30 cases), 0.27% (5 cases) and 2.69% (49 cases), respectively, which showed no statistical difference compared to the control group [1.33% (25 cases), 0.32% (6 cases) and 2.07% (39 cases)]. After adjusting for the age, gender, education, marital status, self-assessed family income level and situation of taking antihypertensive drugs, the difference-in-difference model showed that the body mass index and diastolic blood pressure in the intervention group decreased by 0.33 kg/m(2) and 1.49 mmHg (1 mmHg=0.133 kPa). Compared with the control group, daily vegetable consumption proportion, the awareness rates of aspirin, stains, salt intake, and oil intake increased by 4.76%, 26.22%, 29.56%, 10.80%, and 15.17%, respectively (P<0.05). Conclusion: After the 1-year comprehensive intervention, there was no significant change in primary outcomes among high-risk populations of cardiovascular disease. In secondary outcomes, body mass index and diastolic blood pressure declined and cardiovascular disease-related knowledge awareness increased.
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Affiliation(s)
- L H Guo
- Department of Chronic Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - J M Zhong
- Department of Chronic Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - L Fang
- Department of Chronic Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X Y Chen
- Department of Chronic Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - W W Gong
- Department of Chronic Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - K X Xie
- Department of Chronic Non-communicable Diseases Control and Prevention, Tongxiang Center for Disease Control and Prevention, Tongxiang 314500, Zhejiang Province, China
| | - C M Wang
- Department of Chronic Non-communicable Diseases Control and Prevention, Tongxiang Center for Disease Control and Prevention, Tongxiang 314500, Zhejiang Province, China
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Liu D, Wang J, Xiao Q, Tian XC, Zhu CR, Jiang JX, Wang CM, Xu Q, Gu XW, Hu HM. [Ossifying fibromyxoid tumor: clinicolpathological futures of 3 cases]. Zhonghua Bing Li Xue Za Zhi 2020; 49:174-176. [PMID: 32074732 DOI: 10.3760/cma.j.issn.0529-5807.2020.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- D Liu
- Department of Pathology, Subei People's Hospital of Jiangsu Province, Yangzhou 225000, China
| | - J Wang
- Department of Pathology, Fudan University Shanghai Cancer Center, Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Q Xiao
- Department of Pathology, Subei People's Hospital of Jiangsu Province, Yangzhou 225000, China
| | - X C Tian
- Department of Pathology, Subei People's Hospital of Jiangsu Province, Yangzhou 225000, China
| | - C R Zhu
- Department of Pathology, Subei People's Hospital of Jiangsu Province, Yangzhou 225000, China
| | - J X Jiang
- Department of Pathology, Subei People's Hospital of Jiangsu Province, Yangzhou 225000, China
| | - C M Wang
- Department of Pathology, Subei People's Hospital of Jiangsu Province, Yangzhou 225000, China
| | - Q Xu
- Department of Pathology, Subei People's Hospital of Jiangsu Province, Yangzhou 225000, China
| | - X W Gu
- Department of Pathology, Subei People's Hospital of Jiangsu Province, Yangzhou 225000, China
| | - H M Hu
- Department of Pathology, Xiangcheng People's Hospital of Jiangsu Province, Suzhou 215131, China
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Zhang JL, Wang CM, Guo CY, Zhu XD, Zhang Y, Yang JY, Wang YQ, Qu Z, Pi L, Lu HZ, Tian ML. Anomalous Thermoelectric Effects of ZrTe_{5} in and beyond the Quantum Limit. Phys Rev Lett 2019; 123:196602. [PMID: 31765179 DOI: 10.1103/physrevlett.123.196602] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 08/14/2019] [Indexed: 06/10/2023]
Abstract
Thermoelectric effects are more sensitive and promising probes to topological properties of emergent materials, but much less addressed compared to other physical properties. We study the thermoelectric effects of ZrTe_{5} in a magnetic field. The presence of the nontrivial electrons leads to the anomalous Nernst effect and quasilinear field dependence of thermopower below the quantum limit. In the strong-field quantum limit, both the thermopower and Nernst signal exhibit exotic peaks. At higher magnetic fields, the Nernst signal has a sign reversal at a critical field where the thermopower approaches zero. We propose that these anomalous behaviors can be attributed to the gap closing of the zeroth Landau bands in topological materials with the band inversion. Our understanding to the anomalous thermoelectric properties in ZrTe_{5} opens a new avenue for exploring Dirac physics in topological materials.
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Affiliation(s)
- J L Zhang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - C M Wang
- Department of Physics, Shanghai Normal University, Shanghai 200234, China
- Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Institute of Material Science and Engineering, École Polytechnique Fédéral de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - C Y Guo
- Institute of Material Science and Engineering, École Polytechnique Fédéral de Lausanne (EPFL), 1015 Lausanne, Switzerland
| | - X D Zhu
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Y Zhang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - J Y Yang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Y Q Wang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Z Qu
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - L Pi
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
| | - Hai-Zhou Lu
- Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - M L Tian
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei 230031, Anhui, China
- School of Physics and Materials Sciences, Anhui University, Hefei 230601, Anhui,China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China
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Xiao Q, Chen J, Liu D, Wang CM, Xu Q, Gu XW. [Clinicopathological features of succinate dehydrogenase-deficient renal cell carcinoma]. Zhonghua Bing Li Xue Za Zhi 2019; 48:796-798. [PMID: 31594045 DOI: 10.3760/cma.j.issn.0529-5807.2019.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Q Xiao
- Department of Pathology, Northern Jiangsu People's Hospital, Jiangsu Province, Yangzhou 225001, China
| | - J Chen
- Department of Pathology, the People's Hospital of Jingjiang City, Jiangsu Province, Taizhou 214500, China
| | - D Liu
- Department of Pathology, Northern Jiangsu People's Hospital, Jiangsu Province, Yangzhou 225001, China
| | - C M Wang
- Department of Pathology, Northern Jiangsu People's Hospital, Jiangsu Province, Yangzhou 225001, China
| | - Q Xu
- Department of Pathology, Northern Jiangsu People's Hospital, Jiangsu Province, Yangzhou 225001, China
| | - X W Gu
- Department of Pathology, Northern Jiangsu People's Hospital, Jiangsu Province, Yangzhou 225001, China
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Yang SF, Wang CM, Liu LC, Xu KY, Xiao SP, Mei J, Yan L. [Clinical effects of expanded super-thin perforator flaps in the shoulder, neck, and chest in reconstruction of extensive burn scars in the face]. Zhonghua Shao Shang Za Zhi 2019; 35:661-667. [PMID: 31594184 DOI: 10.3760/cma.j.issn.1009-2587.2019.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical effects and key techniques of expanded super-thin perforator flaps in the shoulder, neck, and chest in reconstruction of extensive burn scars in the face. Methods: From January 2008 to November 2018, 22 patients with extensive burn scars in the face were admitted to the Department of Plastic Surgery of Dongguan Kanghua Hospital and the Department of Plastic Surgery of Dermatology Hospital of Southern Medical University, with 3 males and 19 females, aged from 4 to 48 years. There were 16 cases of type Ⅱ and 6 cases of type Ⅲ in facial scars. Before the first stage of expansion surgery, Doppler blood flow survey meter or multi-slice CT was used to locate the perforator vessels. One to four expanders with rated capacity ranged from 100 to 600 mL were placed in the patients. We gave 20% to 30% of the rated capacity of expander intro-operation and common injection with 10% to 15% of the rated capacity of expander per week post-operation until the volume reached 1.5 to 2.5 times of the rated capacity of expander during the past 3 to 4 months. At the second stage of surgery, the perforators were located again before surgery with the same method. The size of defects after the excision of facial scars ranged from 6 cm×4 cm to 18 cm×16 cm. With perforators used as nutrient vessels, narrow pedicle flaps or random flaps ranging from 6 cm×6 cm to 22 cm×18 cm were elevated as rotating or advancing to reconstruct the defects. The donor sites were sutured directly. Some of the flaps needed stage Ⅲ operation for cutting the pedicle. The survival of flaps, post-operation complications, and follow-up were assessed. Results: All flaps of 22 patients survived. All the donor sites were closed simultaneously. One patient underwent an additional surgery for 5 cm×4 cm necrosis on distal part of flap caused by subcutaneous hematoma. Two patients with epidermis blister on the flaps were healed by themselves after dressing change. Due to rapid expansion, blood capillary proliferation appeared on the central part of the flap in 3 cases, after slowing down the expansion speed properly, which had no impact on flap transfer. No ischemia or venous congestion phenomenon were observed in the other flaps. During follow-up of 5 to 48 months, the flaps of patients showed no significant bloated appearance, with good complexion and texture, and even could reproduce facial fine-grained expressions naturally. Conclusions: For the reconstruction of extensive burn scars in the face, expanded super-thin perforator flaps can not only acquire large and thin flaps with high matching degree surface skin defect, but also reproduce facial fine-grained expressions. It is a simple and safe method which conforms to the facial aesthetic standard.
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Affiliation(s)
- S F Yang
- Department of Plastic Surgery, Dongguan Kanghua Hospital, Dongguan 523080, China
| | - C M Wang
- Department of Plastic Surgery, Dermatology Hospital of Southern Medical University, Guangzhou 510095, China
| | - L C Liu
- Department of Plastic Surgery, Dermatology Hospital of Southern Medical University, Guangzhou 510095, China
| | - K Y Xu
- Department of Radiology, Shenzhen Hospital of Southern Medical University, Shenzhen 518110, China
| | - S P Xiao
- Department of Plastic Surgery, Dermatology Hospital of Southern Medical University, Guangzhou 510095, China
| | - J Mei
- Department of Anatomy, Wenzhou Medical University, Wenzhou 325035, China
| | - L Yan
- Department of Cosmetic Surgery, Guangzhou Minghan Aesthetic Hospital, Guangzhou 510623, China
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32
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Xiao Q, Liu D, Zhu CR, Wang CM, Xu Q, Gu XW, Wu HT. [Clinicopathological features of eosinophilic solid and cystic renal cell carcinoma]. Zhonghua Bing Li Xue Za Zhi 2019; 48:715-717. [PMID: 31495093 DOI: 10.3760/cma.j.issn.0529-5807.2019.09.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Q Xiao
- Department of Pathology, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - D Liu
- Department of Pathology, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - C R Zhu
- Department of Pathology, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - C M Wang
- Department of Pathology, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - Q Xu
- Department of Pathology, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - X W Gu
- Department of Pathology, Northern Jiangsu People's Hospital, Yangzhou 225001, China
| | - H T Wu
- Department of Medical Imaging, Northern Jiangsu People's Hospital, Yangzhou 225001, China
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Jia ZC, Bian HJ, Han JT, Zhao HY, Luan JY, Wang CM, Li X. [Cerebral hyper perfusion syndrome after carotid artery stenting]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:733-736. [PMID: 31420631 DOI: 10.19723/j.issn.1671-167x.2019.04.024] [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: 11/20/2022]
Abstract
OBJECTIVE To explore the risk factors, clinical characteristics, precaution and treatment of hyper perfusion syndrome (HPS) after carotid artery stenting (CAS). METHODS From September 2014 to March 2018, the clinical data of 226 patients with severe carotid stenosis (70%-99%) treated with carotid artery stenting (CAS)at Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, were analyzed retrospectively.Five of them developed HPS after CAS.The relationship between the clinical baseline data, imaging characteristics, perioperative management and HPS were assessed. RESULTS In this group, 5 patients of them (2.21%, 5/226) developed HPS after CAS, and 2 patients of them (0.88%, 2/226) were hyper perfusion induced intracranial hemorrhage (HICH). The 5 patients consisted of 4 men and 1 woman whose age ranged from 58 to 74 years. The symptoms of HPS occurred within 4 hours to 3 days after CAS. Among the 5 cases, the clinical manifestations were that 2 cases with headache, 1 case with delirium,1 case with hemiparesis of left limbs, and 1 case with coma(died ultimately).The main manifestations of case 1 and case 2 were headache in the frontal parietal temporal region of the operative side, accompanied by nausea and vomiting. The symptoms were relieved after blood pressure lowering treatment and mannitol dehydration. The main manifestations of case 3 were excitement and delirium. The symptoms were relieved by a small dose of sedatives, also with blood pressure lowering treatment and mannitol dehydration. The initial symptoms of case 4 were excitement and delirium, accompanied by mild headache of the operative side, and hemiplegia of the contralateral limb occurred within a short time. The main manifestation of case 5 was severe headache and went into deep coma within a short time. This patient died of massive cerebral hemorrhage ultimately. CONCLUSION HPS is an uncommon but serious complication after CAS. Improving our understanding and heightening vigilance of HPS is necessary. The earlier diagnosis, the earlier treatment.
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Affiliation(s)
- Z C Jia
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - H J Bian
- Department of Neurology, Guanxian Hospital, Guanxian 252500, Shandong, China
| | - J T Han
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - H Y Zhao
- Department of Neurology, Peking University Third Hospital, Beijing 100191, China
| | - J Y Luan
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - C M Wang
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - X Li
- Department of Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
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Abstract
The nonlinear Hall effect has opened the door towards deeper understanding of topological states of matter. Disorder plays indispensable roles in various linear Hall effects, such as the localization in the quantized Hall effects and the extrinsic mechanisms of the anomalous, spin, and valley Hall effects. Unlike in the linear Hall effects, disorder enters the nonlinear Hall effect even in the leading order. Here, we derive the formulas of the nonlinear Hall conductivity in the presence of disorder scattering. We apply the formulas to calculate the nonlinear Hall response of the tilted 2D Dirac model, which is the symmetry-allowed minimal model for the nonlinear Hall effect and can serve as a building block in realistic band structures. More importantly, we construct the general scaling law of the nonlinear Hall effect, which may help in experiments to distinguish disorder-induced contributions to the nonlinear Hall effect in the future.
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Affiliation(s)
- Z Z Du
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen, 518055, China
- Peng Cheng Laboratory, Shenzhen, 518055, China
| | - C M Wang
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen, 518055, China
- Department of Physics, Shanghai Normal University, Shanghai, 200234, China
| | - Shuai Li
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen, 518055, China
| | - Hai-Zhou Lu
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen, 518055, China.
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen, 518055, China.
- Peng Cheng Laboratory, Shenzhen, 518055, China.
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - X C Xie
- International Center for Quantum Materials, School of Physics, Peking University, Beijing, 100871, China
- Beijing Academy of Quantum Information Sciences, Beijing, 100193, China
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing, 100190, China
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Abstract
Osteoarthritis (OA) is a prevalent joint disorder worldwide. Recent studies suggested that macrophages play an important role in the progression of OA. However, the detailed pathology related to macrophages is still ambiguous, especially where related to mechanotransduction. In this study, polycaprolactone (PCL) and Eucommia Ulmoides Gum (EUG) composite scaffolds were first fabricated by electrospinning. The stiffness of as-fabricated scaffolds was altered by adjusting the PCL-to-EUG ratio. The mechanical properties, structural characteristics and chemical composition of the scaffolds were investigated using various materials characterization techniques. The results show that stiffness of the scaffolds was in the same range as that of cartilage tissues with OA. Confocal microscopy and reverse transcription-polymerase chain reaction (RT-PCR) were performed to investigate the macrophages cultured on the scaffolds. Significant morphological changes of cells were observed on PCL/EUG scaffolds with different stiffness. The expression of inflammatory and fibrosis-related cytokines increases as scaffold stiffness decreases, similar to the trend observed in OA progression.
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Affiliation(s)
- Y Z B Xue
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China; Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Y M Niu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China
| | - B Tang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China; Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China.
| | - C M Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau, China.
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Wang H, Du HD, Hu RY, Qian YJ, Wang CM, Xie KX, Chen LL, Pan DX, Bian Z, Guo Y, Yu M, Li LM, Chen ZM. [Association between tea drinking and stroke in adults in Zhejiang province: a prospective study]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 39:1200-1205. [PMID: 30293310 DOI: 10.3760/cma.j.issn.0254-6450.2018.09.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To prospectively explore the association between tea drinking and incidence of stroke of adults of Zhejiang province. Methods: After excluding participants with heart disease, stroke, cancer and diabetes at baseline study, 53 916 participants aged 30-79 years in the China Kadoorie Biobank (CKB) study from Tongxiang were included for final analysis. Cox regression model was used to estimate the hazard ratio (HR) for the association of tea drinking with incident stroke. Results: The main type of drinking tea was black tea (79.78%), followed by green tea (20.08%). Of the 53 916 participants, the proportion of participants who drank tea at least once per week was 31.27%. The corresponding proportions for men and women were 60.24% and 10.30%, respectively. Among 391 512 person-years of the follow-up program (median 7.26 years), a total of 1 487 men and 1 769 women were diagnosed with stroke. After adjusting for socio-demographic status, lifestyle, BMI, waist circumference, and systolic blood pressure, HR for incident stroke decreased with the increase of daily average tea consumption amount (P=0.000 6). Compared with participants who did not drink tea weekly, the HRs for incident stroke in those consuming tea 0.1-, 3.0- and ≥5.0 g/d were 0.93 (95%CI: 0.85-1.00), 0.88 (95%CI: 0.77-0.99) and 0.79 (95%CI: 0.69-0.89), respectively. The HRs for incident stroke in smokers and non-smokers who consumed tea ≥5.0 g/d were 0.71 (95%CI: 0.59-0.86) and 0.97 (95%CI: 0.77-1.21), respectively, compared with current smokers and non-smokers who did not drink tea weekly (P=0.040 0). The corresponding HRs for alcohol drinkers and non-drinkers were 0.96 (95%CI: 0.76-1.22) and 0.70 (95%CI: 0.58-0.84), respectively (P=0.040 0). The corresponding HRs for central obese persons and non-central obese persons were 0.60 (95%CI: 0.44-0.81) and 0.86 (95%CI: 0.73-1.01), respectively (P=0.040 0). Conclusion: Tea drinking had an effect on reducing the possibility of incident stroke, especially among those who were current smokers, non-alcohol drinkers and central obese.
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Affiliation(s)
- H Wang
- Department of Chronic and Non-communicable Disease Prevention and Control, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - H D Du
- Clinical Trial Service and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, United Kingdom
| | - R Y Hu
- Department of Chronic and Non-communicable Disease Prevention and Control, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y J Qian
- Department of Chronic and Non- communicable Disease Prevention and Control, Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - C M Wang
- Department of Chronic and Non- communicable Disease Prevention and Control, Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - K X Xie
- Department of Chronic and Non- communicable Disease Prevention and Control, Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - L L Chen
- Department of Chronic and Non- communicable Disease Prevention and Control, Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - D X Pan
- Department of Chronic and Non- communicable Disease Prevention and Control, Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - Z Bian
- Department of China Kadoorie Biobank, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - Y Guo
- Department of China Kadoorie Biobank, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - M Yu
- Department of Chronic and Non-communicable Disease Prevention and Control, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - L M Li
- School of Public Health, Peking University, Beijing 100191, China
| | - Z M Chen
- Clinical Trial Service and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford OX3 7LF, United Kingdom
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Li Y, Zhang N, Wang CM, He GL. Application of OCT in the Forensic Pathological Diagnosis of Coronary Artery Atherosclerosis and Myocardial Infarction. Fa Yi Xue Za Zhi 2019; 35:58-62. [PMID: 30896121 DOI: 10.12116/j.issn.1004-5619.2019.01.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To investigate the value of optical coherence tomography (OCT) in the diagnosis of coronary atherosclerosis and myocardial infarction in forensic identification. METHODS OCT and hematoxylin-eosin (HE) examination were performed to examine the pathological samples of coronary artery and myocardial infarction in 5 cases of sudden coronary death. The morphological and local measurement indexes were compared. RESULTS In the OCT images, the layers of coronary artery could be distinguishably featured, and the atheroma plaques had a good morphological correspondence with HE slices. The normal myocardia in the OCT image showed weak light signals with high absorbance, while the fiber scar tissues in the myocardial infarction areas showed strong light signals with low absorbance. There were no significant differences on the fibrous cap thickness in coronary atherosclerotic plaques or intima-media thickness between the OCT images and the HE slices (P>0.05). In the OCT images, the optical densities of the old myocardial infarction areas (1 226.24±622.66) and those of normal myocardia (3 707.90±962.98) were significantly different ( P<0.05). CONCLUSIONS The OCT image has a good morphological consistency with HE slice, thus is expected to be the primary screening method for the forensic pathology examination of coronary artery atherosclerosis and myocardial infarction, which can help to improve the diagnostic accuracy.
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Affiliation(s)
- Y Li
- Department of Forensic Pathology and Traumatology, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - N Zhang
- Department of Video Detection, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
| | - C M Wang
- Department of Physics, Tsinghua University, Beijing 100084, China
| | - G L He
- Department of Forensic Pathology and Traumatology, Institute of Forensic Science, Ministry of Public Security, PRC, Beijing 100038, China
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Zhang CL, Wang CM, Yuan Z, Xu X, Wang G, Lee CC, Pi L, Xi C, Lin H, Harrison N, Lu HZ, Zhang J, Jia S. Non-saturating quantum magnetization in Weyl semimetal TaAs. Nat Commun 2019; 10:1028. [PMID: 30833678 PMCID: PMC6399290 DOI: 10.1038/s41467-019-09012-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 02/12/2019] [Indexed: 11/30/2022] Open
Abstract
Detecting the spectroscopic signatures of relativistic quasiparticles in emergent topological materials is crucial for searching their potential applications. Magnetometry is a powerful tool for fathoming electrons in solids, by which a clear method for discerning relativistic quasiparticles has not yet been established. Adopting the probes of magnetic torque and parallel magnetization for the archetype Weyl semimetal TaAs in strong magnetic field, we observed a quasi-linear field dependent effective transverse magnetization and a non-saturating parallel magnetization when the system enters the quantum limit. Distinct from the saturating magnetic responses for non-relativistic quasiparticles, the non-saturating signals of TaAs in strong field is consistent with our newly developed magnetization calculation for a Weyl fermion system in an arbitrary angle. Our results establish a high-field thermodynamic method for detecting the magnetic response of relativistic quasiparticles in topological materials.
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Affiliation(s)
- Cheng-Long Zhang
- International Center for Quantum Materials, School of Physics, Peking University, 100871, Beijing, China
| | - C M Wang
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, 518055, Shenzhen, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, 518055, Shenzhen, China
- Department of Physics, Shanghai Normal University, 200234, Shanghai, China
| | - Zhujun Yuan
- International Center for Quantum Materials, School of Physics, Peking University, 100871, Beijing, China
| | - Xitong Xu
- International Center for Quantum Materials, School of Physics, Peking University, 100871, Beijing, China
| | - Guangqiang Wang
- International Center for Quantum Materials, School of Physics, Peking University, 100871, Beijing, China
| | - Chi-Cheng Lee
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore
- Department of Physics, National University of Singapore, 2 Science Drive 3, 117542, Singapore
| | - Li Pi
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei, 230031, China
| | - Changying Xi
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei, 230031, China
| | - Hsin Lin
- Centre for Advanced 2D Materials and Graphene Research Centre, National University of Singapore, 6 Science Drive 2, 117546, Singapore
- Department of Physics, National University of Singapore, 2 Science Drive 3, 117542, Singapore
| | - Neil Harrison
- National High Magnetic Field Laboratory, Los Alamos National Laboratory, MS E536, Los Alamos, NM, 87545, USA
| | - Hai-Zhou Lu
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, 518055, Shenzhen, China.
- Shenzhen Key Laboratory of Quantum Science and Engineering, 518055, Shenzhen, China.
- Center for Quantum Computing, Pengcheng Laboratory, 518055, Shenzhen, China.
| | - Jinglei Zhang
- Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions, High Magnetic Field Laboratory of the Chinese Academy of Sciences, Hefei, 230031, China.
| | - Shuang Jia
- International Center for Quantum Materials, School of Physics, Peking University, 100871, Beijing, China.
- Collaborative Innovation Center of Quantum Matter, 100871, Beijing, China.
- CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, 100190, Beijing, China.
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Dai XC, Liu LQ, Wang BH, Wang CM, Ma L, Cao WM, Dai EX. [Effect of concurrent chemoradiotherapy and radiotherapy alone on peripheral myeloid-derived suppressor and T regulatory cells in patients with nasopharyngeal cancer]. Zhonghua Zhong Liu Za Zhi 2019; 39:579-583. [PMID: 28835079 DOI: 10.3760/cma.j.issn.0253-3766.2017.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the percentage of myeloid-derived suppressor cells (MDSC) and T regulatory cells (Treg) in peripheral blood of nasopharyngeal cancer (NPC) patients undergoing concurrent chemoradiotherapy or radiotherapy alone. Methods: Sixty NPC patients who received radiotherapy or concurrent chemoradiotherapy from September 2012 to November 2015 and 20 healthy individuals were included in this study. For the patients, the blood samples were collected at four time points: pre-radiation (Pre-RT), reaching a dose of 40 Gy (RT-40 Gy), finishing radiation (RT-finish) and three months after finishing radiation (3m-post-RT). Flow cytometry was used to evaluate the percentage of Treg (CD4(+) CD25(+) CD127(low/-)) and MDSC (HLA-DR(-)CD11b(+) CD33(+) ) cells in peripheral blood. Results: Treg and MDSC cells were present in peripheral blood lymphocytes of healthy individuals as a percentage of (7.50±1.62)% and (1.08±0.48)%, respectively. The proportions of peripheral Treg cells in patients at Pre-RT, RT-40 Gy, RT-finish and 3m-post-RT time points were (8.42± 1.52)%, (9.10±1.57)%, (8.87±1.56)% and (7.31±1.43)%, respectively, showing a statistically significant difference between Pre-RT and the other groups (P<0.05). At Pre-RT point, the percentage of Treg cells in Stage Ⅲ-Ⅳ patients [(8.63±1.39)%] was higher than that in Stage Ⅰ-Ⅱ [(7.65±1.94)%, P=0.042]. Moreover, the proportions of peripheral MDSC cells in patients at Pre-RT, RT-40 Gy, RT-finish and 3m-post-RT time points were (2.14±1.21)%, (4.08±1.90)%, (3.76±1.31)% and (1.52±0.88)%, respectively. The percentages of MDSC cells at RT-40 Gy and RT-finish points were significantly higher than those at Pre-RT, while the percentage of MDSC cells at 3m-post-RT was significantly lower than those at Pre-RT (P<0.05). At Pre-RT point, the percentage of MDSC cells in Stage Ⅲ-Ⅳ patients [(2.25±1.26)%] was higher than that in Stage Ⅰ-Ⅱ [(1.35±0.66)%, P=0.007]. At RT-finish point, the proportions of MDSC and Treg cells in patients with Ⅲ-Ⅳ grade of radiation induced oral mucositis [(4.41±1.27)% and (9.91±1.23)%] were significantly higher than those in Ⅰ-Ⅱ grade patients [(3.15±1.04)% and (8.41±1.52)%, both of P<0.05]. Conclusions: The proportions of MDSC and Treg cells in initial treated NPC patients are higher than healthy individuals, and they are also associated with the tumor stages. During the concurrent chemoradiotherapy and radiation, the percentage of MDSC and Treg cells is elevated, suggesting a decreased immune activity. The increase of MDSC and Treg cells is related to radiation induced oral mucositis.
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Affiliation(s)
- X C Dai
- Department of Oncology, SuBei People's Hospital of Jiangsu Province, Yangzhou 225001, China
| | - L Q Liu
- Department of Oncology, SuBei People's Hospital of Jiangsu Province, Yangzhou 225001, China
| | - B H Wang
- Department of Oncology, SuBei People's Hospital of Jiangsu Province, Yangzhou 225001, China
| | - C M Wang
- Department of Oncology, SuBei People's Hospital of Jiangsu Province, Yangzhou 225001, China
| | - L Ma
- Institute of Hematology, SuBei People's Hospital of Jiangsu Province, Yangzhou 225001, China
| | - W M Cao
- Department of Oncology, SuBei People's Hospital of Jiangsu Province, Yangzhou 225001, China
| | - E X Dai
- Department of Oncology, SuBei People's Hospital of Jiangsu Province, Yangzhou 225001, China
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40
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Wang H, Hu RY, Qian YJ, Wang CM, Xie KX, Chen LL, Pan DX, Zhang YD, Bian Z, Guo Y, Fiona M, Yu LM, Li ZM, Chen Z. [Prospective study on the effect of BMI and waist circumference on diabetes of adults in Zhejiang province]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 39:810-815. [PMID: 29936752 DOI: 10.3760/cma.j.issn.0254-6450.2018.06.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect of BMI and waist circumference on diabetes of adults. Methods: After excluding participants with heart disease, stroke, cancer and diabetes at baseline study, 53 916 people aged 30-79 in the China Kadoorie Biobank (CKB) study from Tongxiang city of Zhejiang province were recruited. Cox regression model was used to estimate the hazards ratios (HR) for the associations of baseline BMI and waist circumference with incident diabetes. Results: Among 391 512 person-years of the follow-up program between 2004 and 2013 (median 7.26 years), a total of 944 men and 1 643 women were diagnosed as having diabetes. Compared to those with normal weight, after adjusting for known or potential factors, HR of both overweight and obesity in men for incident diabetes appeared as 2.72 (95%CI: 2.47-2.99) and 6.27 (95%CI: 5.33-7.36), respectively. The corresponding figures in women were 2.19 (95%CI: 2.04-2.36) and 3.78 (95%CI: 3.36-4.26). Compared to those with normal waist circumference, after adjusting for known or potential factors, HR of Ⅰgrade andⅡgrade in men for diabetes were 2.56 (95%CI: 2.22-2.95) and 4.66 (95%CI: 4.14-5.24), respectively. The corresponding figures in women were 1.99 (95%CI: 1.80-2.21) and 3.16 (95%CI: 2.90-3.44), respectively. Conclusions: Overweight, obesity and central obesity were all associated with the increased incident of diabetes. Strategies on diabetes prevention should include not only losing weight, but reducing waist circumference as well.
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Affiliation(s)
- H Wang
- Department of Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - R Y Hu
- Department of Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y J Qian
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - C M Wang
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - K X Xie
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - L L Chen
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - D X Pan
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - Y D Zhang
- Department of Non-communicable Diseases Control and Prevention, Tongxiang City Center for Disease Control and Prevention, Tongxiang 314500, China
| | - Z Bian
- Department of China Kadoorie Biobank, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - Y Guo
- Department of China Kadoorie Biobank, Chinese Academy of Medical Sciences, Beijing 102308, China
| | - M Fiona
- Clinical Trial Service and Epidemiological Studies Unit (CTSU), University of Oxford, Oxford OX12JD, UK
| | - L M Yu
- Department of Non-communicable Diseases Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Z M Li
- School of Public Health, Peking University, Beijing 100191, China
| | - Zhengming Chen
- Clinical Trial Service and Epidemiological Studies Unit (CTSU), University of Oxford, Oxford OX12JD, UK
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Abstract
Unconventional responses upon breaking discrete or crystal symmetries open avenues for exploring emergent physical systems and materials. By breaking inversion symmetry, a nonlinear Hall signal can be observed, even in the presence of time-reversal symmetry, quite different from the conventional Hall effects. Low-symmetry two-dimensional materials are promising candidates for the nonlinear Hall effect, but it is less known when a strong nonlinear Hall signal can be measured, in particular, its connections with the band-structure properties. By using model analysis, we find prominent nonlinear Hall signals near tilted band anticrossings and band inversions. These band signatures can be used to explain the strong nonlinear Hall effect in the recent experiments on two-dimensional WTe_{2}. This Letter will be instructive not only for analyzing the transport signatures of the nonlinear Hall effect but also for exploring unconventional responses in emergent materials.
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Affiliation(s)
- Z Z Du
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
- School of Physics, Southeast University, Nanjing 211189, China
| | - C M Wang
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
- Department of Physics, Shanghai Normal University, Shanghai 200234, China
| | - Hai-Zhou Lu
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - X C Xie
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
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42
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Liu X, Han SB, Si G, Yang SM, Wang CM, Jiang L, Wei F, Wu FL, Liu XG, Liu ZJ. Percutaneous albumin/doxycycline injection versus open surgery for aneurysmal bone cysts in the mobile spine. Eur Spine J 2018; 28:1529-1536. [DOI: 10.1007/s00586-018-5836-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Accepted: 11/18/2018] [Indexed: 11/29/2022]
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Xue YZB, Niu YM, Tang B, Wang CM. WITHDRAWN: PCL/EUG scaffolds with tunable stiffness can regulate macrophage secretion behavior. Prog Biophys Mol Biol 2018:S0079-6107(17)30320-6. [PMID: 29792891 DOI: 10.1016/j.pbiomolbio.2018.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2017] [Revised: 04/14/2018] [Accepted: 05/19/2018] [Indexed: 01/04/2023]
Abstract
The Publisher regrets that this article is an accidental duplication of an article that has already been published, http://dx.doi.org/10.1016/j.pbiomolbio.2018.05.008. The duplicate article has therefore been withdrawn.
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Affiliation(s)
- Y Z B Xue
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China; State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau SAR, China; Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Y M Niu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau SAR, China
| | - B Tang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China; Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China; Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Shenzhen Key Laboratory of Cell Microenvironment, China.
| | - C M Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau SAR, China.
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Li C, Wang CM, Wan B, Wan X, Lu HZ, Xie XC. Rules for Phase Shifts of Quantum Oscillations in Topological Nodal-Line Semimetals. Phys Rev Lett 2018; 120:146602. [PMID: 29694159 DOI: 10.1103/physrevlett.120.146602] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 03/01/2018] [Indexed: 05/12/2023]
Abstract
Nodal-line semimetals are topological semimetals in which band touchings form nodal lines or rings. Around a loop that encloses a nodal line, an electron can accumulate a nontrivial π Berry phase, so the phase shift in the Shubnikov-de Haas (SdH) oscillation may give a transport signature for the nodal-line semimetals. However, different experiments have reported contradictory phase shifts, in particular, in the WHM nodal-line semimetals (W=Zr/Hf, H=Si/Ge, M=S/Se/Te). For a generic model of nodal-line semimetals, we present a systematic calculation for the SdH oscillation of resistivity under a magnetic field normal to the nodal-line plane. From the analytical result of the resistivity, we extract general rules to determine the phase shifts for arbitrary cases and apply them to ZrSiS and Cu_{3}PdN systems. Depending on the magnetic field directions, carrier types, and cross sections of the Fermi surface, the phase shift shows rich results, quite different from those for normal electrons and Weyl fermions. Our results may help explore transport signatures of topological nodal-line semimetals and can be generalized to other topological phases of matter.
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Affiliation(s)
- Cequn Li
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
- Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - C M Wang
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
- School of Physics and Electrical Engineering, Anyang Normal University, Anyang 455000, China
| | - Bo Wan
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
| | - Xiangang Wan
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing 210093, China
| | - Hai-Zhou Lu
- Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - X C Xie
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
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Abstract
The quantum Hall effect is usually observed in 2D systems. We show that the Fermi arcs can give rise to a distinctive 3D quantum Hall effect in topological semimetals. Because of the topological constraint, the Fermi arc at a single surface has an open Fermi surface, which cannot host the quantum Hall effect. Via a "wormhole" tunneling assisted by the Weyl nodes, the Fermi arcs at opposite surfaces can form a complete Fermi loop and support the quantum Hall effect. The edge states of the Fermi arcs show a unique 3D distribution, giving an example of (d-2)-dimensional boundary states. This is distinctly different from the surface-state quantum Hall effect from a single surface of topological insulator. As the Fermi energy sweeps through the Weyl nodes, the sheet Hall conductivity evolves from the 1/B dependence to quantized plateaus at the Weyl nodes. This behavior can be realized by tuning gate voltages in a slab of topological semimetal, such as the TaAs family, Cd_{3}As_{2}, or Na_{3}Bi. This work will be instructive not only for searching transport signatures of the Fermi arcs but also for exploring novel electron gases in other topological phases of matter.
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Affiliation(s)
- C M Wang
- Institute for Quantum Science and Engineering and Department of Physics, South University of Science and Technology of China, Shenzhen 518055, China
- School of Physics and Electrical Engineering, Anyang Normal University, Anyang 455000, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - Hai-Peng Sun
- Institute for Quantum Science and Engineering and Department of Physics, South University of Science and Technology of China, Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - Hai-Zhou Lu
- Institute for Quantum Science and Engineering and Department of Physics, South University of Science and Technology of China, Shenzhen 518055, China
- Shenzhen Key Laboratory of Quantum Science and Engineering, Shenzhen 518055, China
| | - X C Xie
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
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Pan DX, Qian YJ, Wang CM, Guo Y, Bian Z, Xie KX, Chen LL, Zhang YD, Li QY. [Interaction between smoking and indoor air pollution on chronic obstructive pulmonary diseases]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 37:1444-1449. [PMID: 28057131 DOI: 10.3760/cma.j.issn.0254-6450.2016.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the prevalence of chronic obstructive pulmonary diseases (COPD) in Tongxiang, Zhejiang province, and analyze the interaction between smoking and indoor air pollution on COPD. Methods: Townships of Chongfu, Zhouquan, Gaoqiao, Shimen, Wuzhen were randomly selected from Tongxiang. All the local people aged 30-79 years were asked to receive questionnaire survey, physical examination and pulmonary function testing. FEV1max/FVC max≤0.7 was the criterion of COPD diagnosis. Logistic regression model was used to analyze the relationship between smoking/indoor air pollution and COPD, multiplied interaction between smoking and indoor air pollution was evaluated, Excel table prepared by Andersson et al. was used to calculate the adding interaction. Results: The overall prevalence of COPD was 6.6%, and adjusted for age, educational level, occupation, marriage, income level, BMI, waist-to-hip and other factors, multivariate logistic regression analysis showed that males who had quit smoking, started smoking at age of <25 years had a high risk of COPD; females who smoked every day <15 g, inhaled smoke into mouth or throat had high risk of COPD. Interaction analysis showed that using fuel of firewood/charcoal/coal, briquettes for cooking and regular smoking had multiplied interaction on COPD. Use no chimney or exhaust system in cooking and regular smoking had adding interaction in females. Conclusion: The prevalence of COPD in Tongxiang was close to the national average level. Female smokers had higher risk for COPD than male smokers. Improving kitchen ventilation, using natural gas or fuel gas for cooking and active tobacco control would facilitate the prevention of COPD.
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Affiliation(s)
- D X Pan
- Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - Y J Qian
- Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - C M Wang
- Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - Y Guo
- Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z Bian
- Chinese Academy of Medical Sciences, Beijing 100730, China
| | - K X Xie
- Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - L L Chen
- Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - Y D Zhang
- Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - Q Y Li
- Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
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47
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Feng QC, Li X, Luan JY, Wang CM, Li TR. [Significance of renal filtration fraction evaluation of renal artery stenting for atherosclerotic renal artery stenosis treatment]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:158-163. [PMID: 28203024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To investigate the significance of filtration fraction (FF) and renal artery stenting in the treatment of atherosclerotic renal artery stenosis. METHODS In the study, 42 cases of renal artery stenosis were treated with 52 renal artery stent implantation. Percutaneous transluminal renal angioplasty and stent (PTRAS) of the patients' health side kidney, ipsilateral kidney (renal) glomerular filtration rate (GFR), renal effective renal plasma flow effective renal plasma flow (ERPF), kidney filtration fraction changes of preoperative and postoperative serum creatinine (SCR) and the changes in the patients with blood pressure (SBP) and the changes after taking antihypertensive drugs were observed and analyzed. RESULTS The 52 cases of renal artery stent implantation were all successful. Preoperative ipsilateral GFR was significantly lower than that of normal side (t=-3.989, P=0.000); preoperative ipsilateral ERPF was significantly lower than the contralateral side (t=-4.926, P=0.000). On both sides, the overall FF values were equal (t=1.273, P=0.207). Postoperative ipsilateral renal GFR was increased, but there was no statistical difference (t=-1.411, P=0.164). Postoperative ipsilateral renal ERPF was increased significantly (t=-4.954, P=0.000), and FF lower (closer to the normal value (t=3.274, P=0.002). Postoperative side GFR was significantly reduced (t=2.569, P=0.000), the contralateral ERPF was significantly reduced (t=3.889, P=0.001), and FF had no significant change (t=-0.758, P=0.454). Postoperative side GFR was lower than that of the contralateral (t=-3.283, P=0.002) and postoperative side ERPF was still lower than that of the contralateral (t=-3.351, P=0.001), but on both sides, the FF values were equal (t=-0.361, P=0.719). Preoperative FF was relatively normal in the patients with kidney, and the postoperative FF value change was small (t=0.799, P=0.430); preoperative FF was significantly higher in the patients with kidney, and the postoperative FF value was lower than the preoperative (normal value, t=5.299, P=0.000). Postoperative overall serum creatinine was significantly decreased (t=2.505, P=0.016); but for the patients with unilateral renal artery stenosis, the changes in serum creatinine had no statistical difference (t=1.228, P=0.299); and for the patients with bilateral renal artery stenosis and serum creatinine compared with the preoperative, the changes were decreased significantly (t=2.518, P=0.030); postoperative blood pressure (SBP) was significantly decreased compared with that before operation (t=8.945, P=0.000); antihypertensive drugs taken were decreased significantly compared with the preoperative (t=5.280, P=0.000). CONCLUSION For the patients with renal artery stenosis, FF is a useful index to understand the pathophysiological process of renal ischemia. Whether preoperative FF is significantly increased or FF is relatively normal, should be regarded as the indications of renal artery stent implantation.
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Affiliation(s)
- Q C Feng
- Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - X Li
- Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - J Y Luan
- Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - C M Wang
- Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
| | - T R Li
- Interventional Radiology and Vascular Surgery, Peking University Third Hospital, Beijing 100191, China
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Zhuang JM, Li X, Li TR, Zhao J, Luan JY, Wang CM. [Randomized controlled trial to superficial femoral artery recanalization for lower extremity arteriosclerosis obliterans]. Beijing Da Xue Xue Bao Yi Xue Ban 2017; 49:153-157. [PMID: 28203023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To evaluate the safety and effectiveness of neglecting superficial femoral artery (SFA) recanalization for chronic lower extremity arteriosclerosis obliterans (ASO). METHODS Thirty-six cases treated for severe stenosis or occlusion of superficial femoral artery resulted from ASO were randomly divided into 2 groups. Twenty of them were treated by endovascular reconstruction of superficial femoral artery and the other 16 cases were not treated with their superficial femoral artery, but were only treated with the accompanied iliac and/or profunda femoral artery lesion. RESULTS There was no significant difference between the two groups on mean age, gender, ABI before treatment, accompanied diseases, Rutherford classification and trans-atlantic inter-society consensus (TASC) classification (P>0.05).One week after operation, the reconstruction group had better marked effect and total effective rate [75.0% vs.12.5%(P<0.001); 90.0% vs. 37.5%(P=0.001)] and lower no effective rate [10.0% vs. 62.5%(P=0.001)], There was no significant difference between the two groups on effective rate [15.0% vs. 25.0%(P=0.675)]. The deteriorate cases in both groups were zero, and there was no morbidity of complications and death in both groups during the perioperative period. In the 3-month follow up, the reconstruction group had a better marked effect rate [65.0% vs.25.0%(P=0.017)];There was no significant difference between the two groups on the effective rate, no effective rate and total effective rate [20.0% vs.43.8%(P=0.124); 15.0% vs.31.3%(P=0.422); 85.0% vs.68.8%(P=0.422)]. The deteriorate cases and morbidity of complications and death in both groups during the perioperative period were still zero. In the 6- and 12-month follow ups, there were no significant differences between the two groups on marked effect and total effective rate [60.0% vs.37.5%(P=0.180), 80.0% vs.87.5%(P=0.672); 60.0% vs.43.8%(P=0.332), 85.0% vs.87.5% (P=1.000)]. The deteriorate case was zero in both groups, and there was no morbidity of complications and death in both groups. The limb salvage rate in both groups was 100% during the whole follow up period. The reconstruction group had a higher cost[(53 367.4±24 518.3) yuan vs.(30 397.5±15 354.4) yuan(P=0.011)]. There were 8 cases of SFA restenosis/ reocclusion during the follow up,three of which accepted another endovascular treatment, and the reoperation rate was 15.0%. while in the nonreconstruction group, there was no case that needed another endovascular therapy, and the reoperation rate was zero. CONCLUSION Only dealing with accompanied iliac and profunda artery lesion and neglecting superficial femoral artery reconstruction is a safe, effective and inexpensive therapy for chronic lower extremity arteriosclerosis obliterans, and should be the preferred alternative for some patients.
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Affiliation(s)
- J M Zhuang
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - X Li
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - T R Li
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - J Zhao
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - J Y Luan
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - C M Wang
- Department of Intervention Vascular Surgery, Peking University Third Hospital, Beijing, 100191, China
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Li J, Dai RX, Chen DJ, Wang CM, Lin HF, Li YR, Tang J, Zhai JX. [Effects of extracellular regulated protein kinases protein and impairment of blood testis barriar stucturein of mice with exposure to decabromodiphenyl ether]. Zhonghua Yu Fang Yi Xue Za Zhi 2016; 50:1096-1101. [PMID: 28057115 DOI: 10.3760/cma.j.issn.0253-9624.2016.12.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study changes in expression of claudin-11 and proteins related to mitogen-activated protein kinase (MAPK) signaling pathways, as well as the ultrastructure of the blood testis barrier (BTB), in male ICR mice exposed to decabromodiphenyl ether (BDE-209). Methods: Fifty-two mice, 4 weeks of age, weighing 15-21 g, were provided with adaptive feeding for 1 week. Mice were randomly divided into 4 groups, named control, low-dose, medium-dose and high-dose groups. The treated groups received BDE-209, by intragastric gavage, at doses, respectively, of 100, 300 and 500 mg/kg. Mice were sacrificed after 6 weeks and organs harvested on ice, weighed and stored at -80 °C. The ultrastructure of testicular tissues was examined by electron microscopy. Western blotting was used to detect proteins related to the MAPK pathway, including p38 mitogen activated protein kinase (p38), phosphorylated p38 (p-p38), extracellular regulated protein kinase 1/2 (ERK1/2) , phosphorylated ERK1/2 (p-ERK1/2) , c-jun N-terminal kinase (JNK), phosphorylated JNK (p-JNK) and the BTB tight junction protein claudin-11. Analyze the difference between each groups. Results: At sacrifice, the body weights in each treated group were compared with those in the control group weighing (41.14 ± 0.60) g. Compared with controls, body weights were significantly different (P<0.05) in the middle dose, at (39.97 ± 0.66) g and high dose, at (39.98± 0.55) g in control group. The coefficients of the testis were significantly lower (P<0.05) in each treated group than in controls, with values of (0.37±0.0)%, (0.31±0.05)% and (0.31±0.04)% for low-dose, medium-dose and high-dose groups, respectively. The epidymus coefficient values were also significantly lower than controls (P<0.05), with values of (0.16±0.06)%, (0.11±0.05)% and (0.07±0.03)%, respectively in the same three dose groups. Electron microscopy ultrastructure showed that, compared with the control group, the testes in the middle and high dose groups had closely connected fractures, cell edema and more vacuoles. Compared with in the control group, levels of p-p38 and p-JNK in testicular tissue were significantly increased (P<0.05). In the control group and in low-, medium- and high-dose groups, the p-p38/p38 ratios were 1.35±0.13, 3.46±0.10, 5.71±0.26 and 4.79±0.21, respectively. The corresponding p-JNK/JNK ratios were 2.07±0.0, 4.77±0.18, 3.63±0.06 and 4.85±0.15. Claudin-11 levels were significantly lower (P<0.05) than control values in each dosed group. The corresponding values in control, low-dose, medium-dose and high-dose groups were 8.33±0.36, 2.06±0.27, 3.37±0.27 and 1.55±0.19, respectively. Conclusion: BDE-209 increased expression of proteins in the MAPK pathway and decreased expression of the BTB tight junction protein claudin-11 in testicular tissue. It also caused ultrastructural damage to the Sertoli cell BTB tight junctions. This suggested that BDE-209 might damage Sertoli cells BTB through effects on the MAPK pathway.
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Affiliation(s)
- J Li
- Department of Occupational and Environmental Health, School of Public Health, Anhui Medical University, Hefei 230032, China
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Wang H, Hu RY, Zhong JM, Qian YJ, Wang CM, Xie KX, Chen LL, Bian Z, Guo Y, Yu M, Chen ZM, Li LM. [Association and interaction between age at menarche and risk of diabetes in adult women]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:1361-1365. [PMID: 27765126 DOI: 10.3760/cma.j.issn.0254-6450.2016.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the associations between age at menarche and diabetes in adult women. Methods: We analyzed the baseline data of 32 364 female participants who were aged 30-79 years and had been enrolled into China Kadoorie Biobank (CKB) study from Tongxiang, Zhejiang province. Multiple logistic regression analysis were used to investigate the putative associations after adjusting for potential confounders. Variables of menarche age and others were added to the logistic regression model to evaluate the multiplicative interaction, respectively. Results: The mean age of female participants was (51.42 ± 9.63) years. And 3.73% and 24.17% of them reported their menarche age, ≤12 years, ≥17 years, respectively. The prevalence of diabetes among them was 5.75%. Compared with those with menarche age ≤12 years, the OR(95%CI) of 15-16, 13-14 and ≤12 years group were 1.13(1.00-1.27), 1.29(1.12-1.49) and 1.68(1.31-2.15) after adjusting for age, socioeconomic status, family history, health behaviors, menopause status, BMI and waist circumference. No significant differences were found in multiplicative interaction on diabetes between menarche age and smoking, alcohol consumption, physical activity, obesity, etc. (P>0.05). Conclusions: Menarche age is associated with higher risk of diabetes in female adults. The earlier menarche age is the higher risk of diabetes. There are no multiplicative interaction on diabetes between menarche age and other adults factors.
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Affiliation(s)
- H Wang
- Department of Non-communicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - R Y Hu
- Department of Non-communicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - J M Zhong
- Department of Non-communicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Y J Qian
- Department of Non-communicable Disease Control and Prevention, Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - C M Wang
- Department of Non-communicable Disease Control and Prevention, Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - K X Xie
- Department of Non-communicable Disease Control and Prevention, Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - L L Chen
- Department of Non-communicable Disease Control and Prevention, Tongxiang County Center for Disease Control and Prevention, Tongxiang 314500, China
| | - Z Bian
- Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Guo
- Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Yu
- Department of Non-communicable Disease Control and Prevention, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - Z M Chen
- Clinical Trial Service and Epidemiological Studies Unit (CTSU), University of Oxford, Oxford OX37LF, UK
| | - L M Li
- School of Public Health, Peking University, Beijing 100191, China; Chinese Academy of Medical Sciences, Beijing 100730, China
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