1
|
Zhao M, Chen GG, Zhang HL, Li QR, Zhou LY, Li Y, Yang J, Wu JX, Li YL, Huangfu H. [Development and validation of a persistent postural-perceptual dizziness screening questionnaire]. Zhonghua Yi Xue Za Zhi 2024; 104:1143-1148. [PMID: 38583044 DOI: 10.3760/cma.j.cn112137-20231111-01067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/08/2024]
Abstract
Objective: To develop a simple screening questionnaire for persistent postural-perceptual dizziness (PPPD) and evaluate its screening ability. Methods: A convenience sample of 296 individuals who met the inclusion criteria between November 2021 and January 2023 were prospectively selected for three rounds of screening at the Vertigo Specialty Clinic of the Department of Otorhinolaryngology-Head and Neck Surgery in the First Hospital of Shanxi Medical University. In conjunction with expert opinion and statistical analysis, the first and second rounds of screening were used to modify and finalize the questionnaire entries, and the third round of screening was used to evaluate the questionnaire's screening ability. Independent sample t-test was used for inter group comparison, reliability and validity indicators were employed to screen and evaluate questionnaire entries, and the receiver operating characteristic (ROC) curve was plotted to determine the optimal cut-off value and corresponding sensitivity and specificity. Results: The final PPPD screening questionnaire entries included 21 items. In evaluating the reliability of this questionnaire, the Cronbach's alpha coefficient was 0.831, the half folding coefficient was 0.742, the content validity was 0.86, and the Kaiser-Meyer-Olkin (KMO) value in the structural validity was 0.811. Additionally, there were six factors with characteristic root>1 and a cumulative contribution rate of 62.62%. The area under the ROC curve of the screening questionnaire was 0.935 (95%CI: 0.877-0.992), and the optimal cut-off value was 8.5, with a sensitivity of 85.0%, a specificity of 85.5%, and a Kappa value of 0.653. Conclusion: The PPPD simple screening questionnaire designed in this study has a high sensitivity and specificity, making it a useful tool for identifying PPPD patients.
Collapse
Affiliation(s)
- M Zhao
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - G G Chen
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H L Zhang
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Q R Li
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - L Y Zhou
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Li
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J Yang
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y L Li
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H Huangfu
- First Clinical Medical College of Shanxi Medical University, Department of Otolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
2
|
Zhang Y, Wu JX, Wang Y, Yuan HS. [The application of setting tube voltage and iodine delivery rate in weight-grouped for reducing the radiation and contrast medium dose in coronary CT angiography]. Zhonghua Yi Xue Za Zhi 2024; 104:751-757. [PMID: 38462355 DOI: 10.3760/cma.j.cn112137-20230728-01109] [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: 03/12/2024]
Abstract
Objective: To evaluate the application value of reducing tube voltage and iodine delivery rate according to body weight in coronary CT angiography (CCTA). Methods: A prospective randomized controlled study. A total of 297 subjects, 172 males and 125 females, aged [M (Q1, Q3)]60.0 (50.0, 68.0) years, who underwent CCTA examination in Peking University Third Hospital due to clinically suspected coronary heart disease from May to December 2022 were included. According to the odd or even visit dates, the subjects were randomly divided into test group (n=156) and control group (n=141). The subjects in both groups were divided into four sub-groups according to body weight: 50-59 group, 60-69 kg group, 70-79 kg group and 80-89 kg group, respectively. The CCTA images were reconstructed with hybrid iterative algorithm(KARL 3D) with levels of 6 and 8, respectively. 100 kVp and iodine flow rate 1.1, 1.3, 1.4 and 1.5 gI/s recommended by the domestic CCTA application guidelines were used in the control group, while the tube voltage and iodine flow rate were reduced in the test group based on the guidelines and body weight:70 kVp and 0.8 g I/s in 50~59 kg group, 80 kVp and 1.0 gI/s in 60~69 kg group, 80 kVp and 1.1 gI/s in70~79 kg group, and 100 kVp and 1.5 gI/s in 80~89 kg group, respectively. The CT values and standard deviation (SD) of aortic root, proximal left anterior descending branch (LAD) and distal right coronary artery (RCA) luminal CCTA, the signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of coronary artery CT images, subjective coronary scores and effective radiation dose (ED) were compared between the both groups. One-way ANOVA or Wilcoxon test was used to analyze the differences of above indicators between the groups to evaluate the application value of low voltage and low iodine flow rate based on weight in coronary CCTA. Results: CT values of aortic root, LAD proximal CT values and SD values of aortic root [411.4 (377.2, 439.8) HU, (366.3±42.9) HU, 26.5±2.3] in the test group were all higher than those in the control group [379.00 (335.2, 415.9) HU, (355.0±46.9) HU and 24.8±2.3]. The differences were statistically significant (all P<0.05), and the other parameters were not statistically significant (all P>0.05). The total subjective image quality score in test group were superior to those in the control group (all P<0.05). The total ED and contrast agent dosage [2.07 (1.52, 3.28) mSv and (38.28±9.68) ml] in CCTA examination in the test group were lower than those in the control group [3.30(2.32, 4.44) mSv and (45.31±5.63) ml], and the differences were statistically significant (all P<0.05). The dosage of ED and contrast agent in the test group was decreased by 37.3% and 15.5%, respectively. Conclusion: Combined with KARL 3D,it is feasible to reduce contrast medium and ED by setting the tube voltage and iodine flow rate of CCTA according to the weight of the subject, which can further reduce the radiation dose and contrast agent dosage of CCTA.
Collapse
Affiliation(s)
- Y Zhang
- Department of Radiology,Peking University Third Hospital,Beijing 100191,China
| | - J X Wu
- Department of Radiology,Peking University Third Hospital,Beijing 100191,China
| | - Y Wang
- Department of Radiology,Peking University Third Hospital,Beijing 100191,China
| | - H S Yuan
- Department of Radiology,Peking University Third Hospital,Beijing 100191,China
| |
Collapse
|
3
|
Qiao Q, Chen GG, Yang J, Wu JX, Zhou LY, Li Y. [Design and evaluation of the dizziness/vertigo disease screening questionnaire]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2024; 59:57-63. [PMID: 38246762 DOI: 10.3760/cma.j.cn115330-20230904-00075] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Affiliation(s)
- Q Qiao
- Department of Otorhinolaryngology Head and Neck Surgery, First Affiliated Hospital of Air Force Military Medical University, Xi'an 710032, China
| | - G G Chen
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J Yang
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - L Y Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Li
- Department of Otorhinolaryngology Head and Neck Surgery, First Hospital of Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
4
|
Zhang J, Chen H, Liu S, Wang LD, Zhang XF, Wu JX, Yu LH, Zhang XH, Zhong S, Du ZY, He CT, Chen XM. Optimizing the Spatial Density of Single Co Sites via Molecular Spacing for Facilitating Sustainable Water Oxidation. J Am Chem Soc 2023; 145:20000-20008. [PMID: 37610355 DOI: 10.1021/jacs.3c06665] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Advances in single-atom (-site) catalysts (SACs) provide a new solution of atomic economy and accuracy for designing efficient electrocatalysts. In addition to a precise local coordination environment, controllable spatial active structure and tolerance under harsh operating conditions remain great challenges in the development of SACs. Here, we show a series of molecule-spaced SACs (msSACs) using different acid anhydrides to regulate the spatial density of discrete metal phthalocyanines with single Co sites, which significantly improve the effective active-site numbers and mass transfer, enabling one of the msSACs connected by pyromellitic dianhydride to exhibit an outstanding mass activity of (1.63 ± 0.01) × 105 A·g-1 and TOFbulk of 27.66 ± 1.59 s-1 at 1.58 V (vs RHE) and long-term durability at an ultrahigh current density of 2.0 A·cm-2 under industrial conditions for oxygen evolution reaction. This study demonstrates that the accessible spatial density of single atom sites can be another important parameter to enhance the overall performance of catalysts.
Collapse
Affiliation(s)
- Jia Zhang
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, and College of Life Science, Jiangxi Normal University, Nanchang 330022, China
| | - Hao Chen
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, and College of Life Science, Jiangxi Normal University, Nanchang 330022, China
| | - Shoujie Liu
- School of Materials Science and Engineering, Anhui University, Hefei 230601, China
| | - Li-Dong Wang
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, and College of Life Science, Jiangxi Normal University, Nanchang 330022, China
| | - Xue-Feng Zhang
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, and College of Life Science, Jiangxi Normal University, Nanchang 330022, China
| | - Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Li-Hong Yu
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, and College of Life Science, Jiangxi Normal University, Nanchang 330022, China
| | - Xiao-Han Zhang
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, and College of Life Science, Jiangxi Normal University, Nanchang 330022, China
| | - Shengliang Zhong
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, and College of Life Science, Jiangxi Normal University, Nanchang 330022, China
| | - Zi-Yi Du
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, and College of Life Science, Jiangxi Normal University, Nanchang 330022, China
| | - Chun-Ting He
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, and College of Life Science, Jiangxi Normal University, Nanchang 330022, China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| |
Collapse
|
5
|
Zhao M, Chen GG, Zhang HL, Wu JX, Yang J, Li Y, Zhou LY. [Progresses of serum estrogen in predicting the progression of common paroxysmal vertigo disease in women]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:808-811. [PMID: 37599246 DOI: 10.3760/cma.j.cn115330-20221116-00690] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Affiliation(s)
- M Zhao
- The First Clinical Medical College of Shanxi Medical University, Taiyuan 030001, China
| | - G G Chen
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H L Zhang
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J Yang
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - Y Li
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - L Y Zhou
- Department of Otolaryngology, Head and Neck Surgery, the First Hospital of Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
6
|
Wu JX, Chen WX, He CT, Zheng K, Zhuo LL, Zhao ZH, Zhang JP. Atomically Dispersed Dual-Metal Sites Showing Unique Reactivity and Dynamism for Electrocatalysis. Nanomicro Lett 2023; 15:120. [PMID: 37127819 PMCID: PMC10151301 DOI: 10.1007/s40820-023-01080-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 03/18/2023] [Indexed: 05/03/2023]
Abstract
The real structure and in situ evolution of catalysts under working conditions are of paramount importance, especially for bifunctional electrocatalysis. Here, we report asymmetric structural evolution and dynamic hydrogen-bonding promotion mechanism of an atomically dispersed electrocatalyst. Pyrolysis of Co/Ni-doped MAF-4/ZIF-8 yielded nitrogen-doped porous carbons functionalized by atomically dispersed Co-Ni dual-metal sites with an unprecedented N8V4 structure, which can serve as an efficient bifunctional electrocatalyst for overall water splitting. More importantly, the electrocatalyst showed remarkable activation behavior due to the in situ oxidation of the carbon substrate to form C-OH groups. Density functional theory calculations suggested that the flexible C-OH groups can form reversible hydrogen bonds with the oxygen evolution reaction intermediates, giving a bridge between elementary reactions to break the conventional scaling relationship.
Collapse
Affiliation(s)
- Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Wen-Xing Chen
- Energy & Catalysis Center, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, People's Republic of China
| | - Chun-Ting He
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, People's Republic of China.
| | - Kai Zheng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Lin-Ling Zhuo
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Zhen-Hua Zhao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, People's Republic of China.
| |
Collapse
|
7
|
Lu S, Yu XM, Hu YP, Ma ZY, Li XY, Li WD, Liu YP, Wang D, Wang XW, Wang ZH, Wu JX, Zhong DS, Li GF, He WY, Bao YY, Yuan Y, Fan JH. [Response characteristics of tislelizumab combined with chemotherapy in first-line treatment of locally advanced or metastatic non-squamous non-small cell lung cancer]. Zhonghua Zhong Liu Za Zhi 2023; 45:358-367. [PMID: 37078218 DOI: 10.3760/cma.j.cn112152-20220928-00662] [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: 04/21/2023]
Abstract
Objective: To investigate the response characteristics of patients with locally advanced/metastatic non-squamous non-small cell lung cancer (nsq-NSCLC) treated with tislelizumab in combination with chemotherapy in the first line. Methods: Patients with nsq-NSCLC who achieved complete or partial remission after treatment with tislelizumab in combination with chemotherapy or chemotherapy alone in the RATIONALE 304 study, as assessed by an independent review board, were selected to analyze the response characteristics and safety profile of the responders. Time to response (TTR) was defined as the time from randomization to the achievement of first objective response. Depth of response (DpR) was defined as the maximum percentage of tumor shrinkage compared with the sum of the baseline target lesion length diameters. Results: As of January 23, 2020, 128 patients treated with tislelizumab in combination with chemotherapy achieved objective tumor response (responders), representing 57.4%(128/223) of the intention-to-treat population, with a TTR of 5.1 to 33.3 weeks and a median TTR of 7.9 weeks. Of the responders (128), 50.8%(65) achieved first remission at the first efficacy assessment (week 6), 31.3%(40) at the second efficacy assessment (week 12), and 18.0%(23) at the third and subsequent tumor assessments. The percentages of responders who achieved a depth of tumor response of 30% to <50%, 50% to <70% and 70% to 100% were 45.3%(58/128), 28.1%(36/128) and 26.6%(34/128), respectively, with median progression-free survival (PFS) of 9.0 months (95% CI: 7.7 to 9.9 months), 11.5 months (95% CI: 7.7 months to not reached) and not reached (95% CI: 11.8 months to not estimable), respectively. Tislelizumab plus chemotherapy were generally well tolerated in responders with similar safety profile to the overall safety population. Conclusion: Among responders to tislelizumab in combination with chemotherapy for nsq-NSCLC, 82.0%(105/128) achieves response within the first two tumor assessments (12 weeks) and 18.0%(23/128) achieves response at later (18 to 33 weeks) assessments, and there is a trend toward prolonged PFS in responders with deeper tumor response.
Collapse
Affiliation(s)
- S Lu
- Shanghai Chest Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200030, China
| | - X M Yu
- Department of Thoracic Oncology, Zhejiang Cancer Hospital, Hangzhou 310022, China
| | - Y P Hu
- Department of Thoracic Oncology, Hubei Cancer Hospital, Wuhan 430079, China
| | - Z Y Ma
- Department of Respiratory Medicine, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou University, Zhengzhou 450003, China
| | - X Y Li
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - W D Li
- Department of Medical Oncology, Affiliated Cancer Hospital of Guangzhou Medical University, Guangzhou 510095, China
| | - Y P Liu
- Department of Medical Oncology, The First Hospital of China Medical University, Shenyang 110001, China
| | - D Wang
- Department of Oncology, Army Sepcialty Medical Center, Chongqing 400042, China
| | - X W Wang
- Department of Medical Oncology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Z H Wang
- Department of Medical Oncology, Shandong Cancer Hospital, Jinan 250117, China
| | - J X Wu
- Department of Medical Oncology, The First Affiliated Hospital of Xiamen University, Xiamen 361003, China
| | - D S Zhong
- Department of Medical Oncology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - G F Li
- Department of Thoracic Surgery, Yunnan Cancer Hospital, Kunming 650118, China
| | - W Y He
- BeiGene (Beijing) Co., Ltd., Beijing 100022, China
| | - Y Y Bao
- BeiGene (Shanghai) Co., Ltd., Shanghai 200020, China
| | - Y Yuan
- BeiGene (Shanghai) Co., Ltd., Shanghai 200020, China
| | - J H Fan
- BeiGene (Beijing) Co., Ltd., Beijing 100022, China
| |
Collapse
|
8
|
Cao LM, Hu CG, Li HH, Huang HB, Ding LW, Zhang J, Wu JX, Du ZY, He CT, Chen XM. Molecule-Enhanced Electrocatalysis of Sustainable Oxygen Evolution Using Organoselenium Functionalized Metal-Organic Nanosheets. J Am Chem Soc 2023; 145:1144-1154. [PMID: 36538569 DOI: 10.1021/jacs.2c10823] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Remolding the reactivity of metal active sites is critical to facilitate renewable electricity-powered water electrolysis. Doping heteroatoms, such as Se, into a metal crystal lattice has been considered an effective approach, yet usually suffers from loss of functional heteroatoms during harsh electrocatalytic conditions, thus leading to the gradual inactivation of the catalysts. Here, we report a new heteroatom-containing molecule-enhanced strategy toward sustainable oxygen evolution improvement. An organoselenium ligand, bis(3,5-dimethyl-1H-pyrazol-4-yl)selenide containing robust C-Se-C covalent bonds equipped in the precatalyst of ultrathin metal-organic nanosheets Co-SeMON, is revealed to significantly enhance the catalytic mass activity of the cobalt site by 25 times, as well as extend the catalyst operation time in alkaline conditions by 1 or 2 orders of magnitude compared with these reported metal selenides. A combination of various in situ/ex situ spectroscopic techniques, ab initio molecular dynamics, and density functional theory calculations unveiled the organoselenium intensified mechanism, in which the nonclassical bonding of Se to O-containing intermediates endows adsorption-energy regulation beyond the conventional scaling relationship. Our results showcase the great potential of molecule-enhanced catalysts for highly efficient and economical water oxidation.
Collapse
Affiliation(s)
- Li-Ming Cao
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Chang-Guo Hu
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Hai-Hong Li
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Hui-Bin Huang
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Li-Wen Ding
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Jia Zhang
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Zi-Yi Du
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Chun-Ting He
- Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| |
Collapse
|
9
|
Du XY, Chen GG, Zhou LY, Li Y, Yang J, Wu JX, Huangfu H. [Review on screening questionnaire related to epsiodic vestibular syndrome]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1535-1539. [PMID: 36707966 DOI: 10.3760/cma.j.cn115330-20220425-00225] [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: 01/29/2023]
Affiliation(s)
- X Y Du
- First Clinical Medical College, Shanxi Medical University, Taiyuan 030001, China Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - G G Chen
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - L Y Zhou
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - Y Li
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - J Yang
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| | - H Huangfu
- Department of Otolaryngology Head and Neck Surgery, the First Hospital Medical University, Taiyuan 030001, China
| |
Collapse
|
10
|
Wu JX, Deng KM, Wang KZ, Zhou TP. [A case of 2q37 deletion syndrome related ophthalmo facial malformation]. Zhonghua Yan Ke Za Zhi 2022; 58:920-922. [PMID: 36348530 DOI: 10.3760/cma.j.cn112142-20220418-00182] [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
A child complained of bilateral congenital non-progressive ptosis for 18 months. According to the clinical characteristics, systemic development and chromosome microarray analysis, the child was diagnosed as 2q37 deletion syndrome related ophthalmo facial malformation. The patient underwent the frontalis aponeurosis flap suspension. After operation, the appearance of eyelids was significantly improved.
Collapse
Affiliation(s)
- J X Wu
- Xiamen Eye Center of Xiamen University, Fujian Provincial Key Laboratory of Corneal & Ocular Surface Diseases, Xiamen 361002, China
| | - K M Deng
- Xiamen Eye Center of Xiamen University, Fujian Provincial Key Laboratory of Corneal & Ocular Surface Diseases, Xiamen 361002, China
| | - K Z Wang
- Department of Ophthalmology, Xiamen Huli District Maternity and Child Care Hospital, Xiamen 361009, China
| | - T P Zhou
- Xiamen Eye Center of Xiamen University, Fujian Provincial Key Laboratory of Corneal & Ocular Surface Diseases, Xiamen 361002, China
| |
Collapse
|
11
|
Zhuo LL, Chen P, Zheng K, Zhang XW, Wu JX, Lin DY, Liu SY, Wang ZS, Liu JY, Zhou DD, Zhang JP. Flexible Cuprous Triazolate Frameworks as Highly Stable and Efficient Electrocatalysts for CO 2 Reduction with Tunable C 2 H 4 /CH 4 Selectivity. Angew Chem Int Ed Engl 2022; 61:e202204967. [PMID: 35510692 DOI: 10.1002/anie.202204967] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [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: 04/05/2022] [Indexed: 12/24/2022]
Abstract
Cu-based metal-organic frameworks have attracted much attention for electrocatalytic CO2 reduction, but they are generally instable and difficult to control the product selectivity. We report flexible Cu(I) triazolate frameworks as efficient, stable, and tunable electrocatalysts for CO2 reduction to C2 H4 /CH4 . By changing the size of ligand side groups, the C2 H4 /CH4 selectivity ratio can be gradually tuned and inversed from 11.8 : 1 to 1 : 2.6, giving C2 H4 , CH4 , and hydrocarbon selectivities up to 51 %, 56 %, and 77 %, respectively. After long-term electrocatalysis, they can retain the structures/morphologies without formation of Cu-based inorganic species. Computational simulations showed that the coordination geometry of Cu(I) changed from triangular to tetrahedral to bind the reaction intermediates, and two adjacent Cu(I) cooperated for C-C coupling to form C2 H4 . Importantly, the ligand side groups controlled the catalyst flexibility by the steric hindrance mechanism, and the C2 H4 pathway is more sensitive than the CH4 one.
Collapse
Affiliation(s)
- Lin-Ling Zhuo
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Pin Chen
- National Supercomputer Center in Guangzhou, School of Computer Science and Engineering, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Kai Zheng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xue-Wen Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Duo-Yu Lin
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Si-Yang Liu
- Guangdong Provincial Key Laboratory of Sensing Technology and Biomedical Instrument, School of Biomedical Engineering, Sun Yat-Sen University, Shenzhen, 518107, China
| | - Zhi-Shuo Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jin-Yu Liu
- National Supercomputer Center in Guangzhou, School of Computer Science and Engineering, Sun Yat-Sen University, Guangzhou, 510006, China
| | - Dong-Dong Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| |
Collapse
|
12
|
Zhuo LL, Chen P, Zheng K, Zhang XW, Wu JX, Lin DY, Liu SY, Wang ZS, Liu JY, Zhou DD, Zhang JP. Flexible Cuprous Triazolate Frameworks as Highly Stable and Efficient Electrocatalysts for CO2 Reduction with Tunable C2H4/CH4 Selectivity. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
| | - Pin Chen
- Sun Yat-Sen University School of Computer Science and Engineering CHINA
| | - Kai Zheng
- Sun Yat-Sen University School of Chemistry CHINA
| | | | - Jun-Xi Wu
- Sun Yat-Sen University School of Chemistry CHINA
| | - Duo-Yu Lin
- Sun Yat-Sen University School of Chemistry CHINA
| | - Si-Yang Liu
- Sun Yat-Sen University School of Biomedical Engineering CHINA
| | | | - Jin-Yu Liu
- Sun Yat-Sen University School of Computer Science and Engineering CHINA
| | | | - Jie-Peng Zhang
- Sun Yat-Sen University School of Chemistry and Chemical Engineering 135 Xingang Rd. W. 510275 Guangzhou CHINA
| |
Collapse
|
13
|
Wang XD, Liu X, Wu T, Yang Y, Qi SN, He X, Zhang LL, Wu G, Qu BL, Qian LT, Hou XR, Zhang FQ, Qiao XY, Wang H, Li GF, Zhu Y, Cao JZ, Wu JX, Zhu SY, Shi M, Su H, Zhang XM, Zhang HL, Huang HQ, Zhang YJ, Song YQ, Zhu J, Wang Y, Li YX. [Outcome of radiotherapy for low-risk early-stage patients with extranodal NK/T-cell lymphoma, nasal-type]. Zhonghua Zhong Liu Za Zhi 2021; 43:1105-1113. [PMID: 34695903 DOI: 10.3760/cma.j.cn112152-20200924-00851] [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 prognosis and determine the failure patterns after radiotherapy for low-risk early-stage patients with extranodal NK/T-cell lymphoma, nasal-type (ENKTCL). Methods: A total of 557 patients from 2000-2015 with low-risk early-stage ENKTCL who received radiotherapy (RT) with or without chemotherapy (CT) from China Lymphoma Collaborative Group were retrospectively reviewed. Among them, 427 patients received combined modality therapy, whereas 130 patients received RT alone. Survivals were calculated by Kaplan-Meier method and compared with Log-rank test. Overall survival (OS) was compared with age and sex-matched general Chinese population using expected survival and standardized mortality ratio (SMR). Cox stepwise regression model was used for multivariate analysis. Results: The 5-year OS and progression-free survival (PFS) were 87.2% and 77.2%. The SMR was 3.59 (P<0.001) at 1 year after treatment, whereas it was 1.50 at 4 years after treatment, without significant difference between ENKTCL group and country-matched general population (P=0.146). Compared with RT alone, CMT did not result in significantly superior 5-year OS (87.0% vs 87.4%, P=0.961) or PFS (76.1% vs 80.7%, P=0.129). Local failure (11.5%, 64/557) and distant failure (10.8%, 60/557) were the main failure modes, while regional failure was rare (2.9%, 16/557). The 5-year locoregional control rate (LRC) was 87.2% for the whole group, with 89.5% for ≥50 Gy versus 73.7% for <50 Gy (P<0.001). Radiotherapy dose was an independent factor affecting LRC(P<0.05). Conclusions: Radiotherapy achieves a favorable prognosis in patients with low-risk early-stage ENKTCL. The incidence of either locoregional or distant failure is low. Radiation dose still is an important prognostic factor for LRC.
Collapse
Affiliation(s)
- X D Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - T Wu
- Department of Radiation Oncology, Affiliated Hospital of Guizhou Medical University/Guizhou Cancer Hospital, Guiyang 550000, China
| | - Y Yang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S N Qi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - X He
- Department of Radiation Oncology, Jiangsu Cancer Hospital/Nanjing Medical University Affiliated Cancer Hospital, Nanjing 210009, China
| | - L L Zhang
- Department of Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - G Wu
- Department of Oncology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430023, China
| | - B L Qu
- Department of Radiation Oncology, The General Hospital of Chinese People's Liberation Army, Beijing 100853, China
| | - L T Qian
- Department of Radiation Oncology, the First Affiliated Hospital of University of Science and Technology of China/Anhui Provincial Hospital, Hefei 230001, China
| | - X R Hou
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - F Q Zhang
- Department of Radiation Oncology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - X Y Qiao
- Department of Radiation Oncology, Hebei Cancer Hospital/the Fourth Hospital of Hebei Medical University, Shijiazhuang 050011, China
| | - H Wang
- Department of Radiation Oncology, Second Affiliated Hospital of Nanchang University, Nanchang 330006, China
| | - G F Li
- Department of Radiation Oncology, Beijing Hospital, Beijing 100730, China
| | - Y Zhu
- Department of Radiation Oncology, Zhejiang Cancer Hospital/Cancer Hospital of The University of Chinese Academy of Sciences, Hangzhou 310022, China
| | - J Z Cao
- Department of Radiation Oncology, Shanxi Cancer Hospital and the Affiliated Cancer Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - J X Wu
- Department of Radiation Oncology, Fujian Provincial Cancer Hospital/Affiliated Cancer Hospital of Fujian Medical University, Fuzhou 350014, China
| | - S Y Zhu
- Department of Radiation Oncology, Hunan Cancer Hospital and the Affiliated Cancer Hospital of Xiangya School of Medicine, Changsha 410013, China
| | - M Shi
- Department of Radiation Oncology, Xijing Hospital, the Fourth Military Medical University, Xi'an 710032, China
| | - H Su
- Department of Oncology, the Fifth Medical Center of PLA General Hospital, Affiliated Hospital of PLA Academy of Military Medical Sciences, Beijing 100071, China
| | - X M Zhang
- Department of Radiation Oncology, Key Laboratory of Cancer Prevention and Therapy/Tianjin Medical University Cancer Institute & Hospital/National Clinical Research Center for Cancer, Tianjin 300060, China
| | - H L Zhang
- Department of Lymphoma, Key Laboratory of Cancer Prevention and Therapy/Tianjin Medical University Cancer Institute & Hospital/National Clinical Research Center for Cancer, Tianjin 300060, China
| | - H Q Huang
- Departments of Radiation Oncology, State Key Laboratory of Oncology in South China/Sun Yat-sen University Cancer Center/Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Y J Zhang
- Departments of Medical Oncology, State Key Laboratory of Oncology in South China/Sun Yat-sen University Cancer Center/Collaborative Innovation Center for Cancer Medicine, Guangzhou 510060, China
| | - Y Q Song
- Department of Radiation Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education)/Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - J Zhu
- Department of Radiation Oncology, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education)/Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Y Wang
- Department of Radiation Oncology, Chongqing Cancer Hospital, Chongqing 400000, China
| | - Y X Li
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| |
Collapse
|
14
|
Zheng X, He X, Yang Y, Liu X, Zhang LL, Qu BL, Zhong QZ, Qian LT, Hou XR, Qiao XY, Wang H, Zhu Y, Cao JZ, Wu JX, Wu T, Zhu SY, Shi M, Xu LM, Zhang HL, Su H, Song YQ, Zhu J, Zhang YJ, Huang HQ, Wang Y, Chen F, Yin L, Qi SN, Li YX. Association of improved overall survival with decreased distant metastasis following asparaginase-based chemotherapy and radiotherapy for intermediate- and high-risk early-stage extranodal nasal-type NK/T-cell lymphoma: a CLCG study. ESMO Open 2021; 6:100206. [PMID: 34242966 PMCID: PMC8271122 DOI: 10.1016/j.esmoop.2021.100206] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/08/2021] [Accepted: 06/21/2021] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND This study evaluated the survival benefit of asparaginase (ASP)-based versus non-ASP-based chemotherapy combined with radiotherapy in a real-world cohort of patients with early-stage extranodal nasal-type natural killer/T-cell lymphoma (ENKTCL). PATIENTS AND METHODS We identified 376 patients who received combined radiotherapy with either ASP-based (ASP, platinum, and gemcitabine; n = 286) or non-ASP-based (platinum and gemcitabine; n = 90) regimens. The patients were stratified into low-, intermediate-, and high-risk groups using the early stage-adjusted nomogram-revised risk index. Overall survival (OS) and distant metastasis (DM)-free survival (DMFS) between the chemotherapy regimens were compared using inverse probability of treatment weighting (IPTW) and multivariable analyses. RESULTS ASP-based (versus non-ASP-based) regimens significantly improved 5-year OS (84.5% versus 73.2%, P = 0.021) and DMFS (84.4% versus 74.5%, P = 0.014) for intermediate- and high-risk patients, but not for low-risk patients in the setting of radiotherapy. Moreover, ASP-based regimens decreased DM, with a 5-year cumulative DM rate of 14.9% for ASP-based regimens compared with 25.1% (P = 0.014) for non-ASP-based regimens. The survival benefit of ASP-based chemotherapy and radiotherapy remained consistent after adjusting the confounding variables using IPTW and multivariate analyses; additional sensitivity analyses confirmed these results. CONCLUSIONS The findings provided support for ASP-based chemotherapy and radiotherapy as a first-line treatment strategy for intermediate- and high-risk early-stage ENKTCL.
Collapse
Affiliation(s)
- X Zheng
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - X He
- Jiangsu Cancer Hospital, Jiangsu Institute of Cancer Research, Nanjing, Jiangsu, PR China
| | - Y Yang
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - X Liu
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China
| | - L L Zhang
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, PR China
| | - B L Qu
- The General Hospital of Chinese People's Liberation Army, Beijing, PR China
| | - Q Z Zhong
- Beijing Hospital, National Geriatric Medical Center, Beijing, PR China
| | - L T Qian
- The Affiliated Provincial Hospital of Anhui Medical University, Hefei, Anhui, PR China
| | - X R Hou
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences (CAMS) and Peking Union Medical College (PUMC), Beijing, PR China
| | - X Y Qiao
- The Fourth Hospital of Hebei Medical University, Shijiazhuang, PR China
| | - H Wang
- Second Affiliated Hospital of Nanchang University, Nanchang, PR China
| | - Y Zhu
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Cancer and Basic Medicine (IBMC), Chinese Academy of Sciences, Zhejiang, PR China
| | - J Z Cao
- Shanxi Cancer Hospital, the Affiliated Cancer Hospital of Shanxi Medical University, Taiyuan, Shanxi, PR China
| | - J X Wu
- Fujian Provincial Cancer Hospital, Fuzhou, Fujian, PR China
| | - T Wu
- Affiliated Hospital of Guizhou Medical University, Guizhou Cancer Hospital, Guiyang, Guizhou, PR China
| | - S Y Zhu
- Hunan Cancer Hospital, the Affiliated Cancer Hospital of Xiangya School of Medicine, Changsha, Hunan, PR China
| | - M Shi
- Xijing Hospital of Fourth Military Medical University, Xi'an, PR China
| | - L M Xu
- Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin, PR China
| | - H L Zhang
- Tianjin Medical University Cancer Institute and Hospital, Key Laboratory of Cancer Prevention and Therapy, National Clinical Research Center for Cancer, Tianjin, PR China
| | - H Su
- The Fifth Medical Center of PLA General Hospital, Beijing, PR China
| | - Y Q Song
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - J Zhu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital and Institute, Beijing, PR China
| | - Y J Zhang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, PR China
| | - H Q Huang
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong, PR China
| | - Y Wang
- Chongqing University Cancer Hospital, Chongqing Cancer Hospital, Chongqing
| | - F Chen
- Affiliated Hospital of Qinghai University, Qinghai, PR China
| | - L Yin
- Affiliated Hospital of Qinghai University, Qinghai, PR China
| | - S N Qi
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China.
| | - Y X Li
- National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, PR China.
| |
Collapse
|
15
|
Wu JX, Bag PP, Xu YT, Gong L, He CT, Chen XM, Zhang JP. Graphene-Like Hydrogen-Bonded Melamine-Cyanuric Acid Supramolecular Nanosheets as Pseudo-Porous Catalyst Support. Adv Mater 2021; 33:e2007368. [PMID: 33893666 DOI: 10.1002/adma.202007368] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 03/08/2021] [Indexed: 06/12/2023]
Abstract
Behaving as structural protectors and electronic modulators, catalyst supports such as graphene derivatives are generally constructed by covalent bonds. Here, hydrogen-bonded ultrathin nanosheets are reported as a new type of catalyst support. Melamine (M) and cyanuric acid (CA) molecules self-assemble to form the graphite-like hydrogen-bonded co-crystal M-CA, which can be easily exfoliated by ultrasonic treatment to yield ultrathin nanosheets with thickness of ≈1.6 nm and high stability at pH = 0. The dynamic nanosheets form adaptive defects/pores in the synthetic process of CoP nanoparticles, giving embedded composite with high hydrogen evolution activity (overpotential of 66 mV at 10 mA cm-2 ) and stability. Computational calculations, X-ray photoelectron spectroscopy, and X-ray absorption spectroscopy unveil the electron modulation effects of the nanosheets. This pseudo-porous catalyst support also can be applied to other metal phosphides.
Collapse
Affiliation(s)
- Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Partha Pratim Bag
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Yan-Tong Xu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Li Gong
- Instrumental Analysis and Research Center, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Chun-Ting He
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, P. R. China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| |
Collapse
|
16
|
Zhou DD, Wang J, Chen P, He Y, Wu JX, Gao S, Zhong Z, Du Y, Zhong D, Zhang JP. On-surface isostructural transformation from a hydrogen-bonded network to a coordination network for tuning the pore size and guest recognition. Chem Sci 2020; 12:1272-1277. [PMID: 34163889 PMCID: PMC8179111 DOI: 10.1039/d0sc05147k] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/13/2020] [Indexed: 11/21/2022] Open
Abstract
Rational manipulation of supramolecular structures on surfaces is of great importance and challenging. We show that imidazole-based hydrogen-bonded networks on a metal surface can transform into an isostructural coordination network for facile tuning of the pore size and guest recognition behaviours. Deposition of triangular-shaped benzotrisimidazole (H3btim) molecules on Au(111)/Ag(111) surfaces gives honeycomb networks linked by double N-H⋯N hydrogen bonds. While the H3btim hydrogen-bonded networks on Au(111) evaporate above 453 K, those on Ag(111) transform into isostructural [Ag3(btim)] coordination networks based on double N-Ag-N bonds at 423 K, by virtue of the unconventional metal-acid replacement reaction (Ag reduces H+). The transformation expands the pore diameter of the honeycomb networks from 3.8 Å to 6.9 Å, giving remarkably different host-guest recognition behaviours for fullerene and ferrocene molecules based on the size compatibility mechanism.
Collapse
Affiliation(s)
- Dong-Dong Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University Guangzhou 510275 China
| | - Jun Wang
- School of Physics, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University Guangzhou 510275 China
| | - Pin Chen
- National Supercomputer Center in Guangzhou, School of Data and Computer Science, Sun Yat-Sen University Guangzhou 510006 China
| | - Yangyong He
- School of Physics, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University Guangzhou 510275 China
| | - Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University Guangzhou 510275 China
| | - Sen Gao
- National Supercomputer Center in Guangzhou, School of Data and Computer Science, Sun Yat-Sen University Guangzhou 510006 China
| | - Zhihao Zhong
- School of Physics, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University Guangzhou 510275 China
| | - Yunfei Du
- National Supercomputer Center in Guangzhou, School of Data and Computer Science, Sun Yat-Sen University Guangzhou 510006 China
| | - Dingyong Zhong
- School of Physics, State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-Sen University Guangzhou 510275 China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University Guangzhou 510275 China
| |
Collapse
|
17
|
Wu JX, Yang ZQ, Zhang RJ, Li YD, Zhao TJ, Yi LZ, Feng YL, Feng SY, Wang B, Wang SP. [Relationship between mutations of HBV basal core promoter region in HBsAg-positive mothers and intrauterine transmission]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:902-907. [PMID: 32564557 DOI: 10.3760/cma.j.cn112338-20200224-00163] [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 analyze the relationship between maternal mutations in basal core promoter region of hepatitis B virus (HBV) genotype C and intrauterine transmission. Methods: We collected information on general demographic characteristics and process of delivery among 399 pairs of consecutive HBsAg-positive mothers and their neonates, from the Third People's Hospital of Taiyuan in Shanxi province, China. Fluorescence quantitative polymerase chain reaction (FQ-PCR) and Electro-chemiluminescence immuno-assay (ECLIA) kits were used to detect both maternal and neonatal HBV DNA and serological markers in the peripheral blood. From 113 mothers with HBV DNA load ≥10(6) IU/ml, we selected 22 mothers whose neonates were with intrauterine transmission and randomly selected the same number of mothers whose neonates were without intrauterine transmission, as controls. The whole-length HBV DNA were extracted, amplified, cloned, sequenced and genotyped. Finally, a total of 39 mothers with genotype C of HBV were selected for mutation analysis. Results: Thirty-nine cases of genotype C (88.63%) were finally included in the study, with 19 cases in the intrauterine transmission group and 20 cases as controls. Rates of A1762T/G1764A double mutations were significantly different between the intrauterine transmission group and the control group (7.53% vs. 27.72%, P<0.001). Results from the multivariate analysis showed that the A1762T/G1764A double mutations had reduced the risk of intrauterine transmission (aOR=0.065, 95%CI: 0.006-0.746, P=0.028). Maternal A1762T/G1764A double mutations appeared to be possibly associated with neonatal HBeAg (P=0.050). Conclusion: A1762T/G1764A double mutations of HBV DNA from the genotype C of those HBsAg-positive mothers could reduced the risk of HBV intrauterine transmission during pregnancy.
Collapse
Affiliation(s)
- J X Wu
- Department of Epidemiology, Shanxi Medical University, Taiyuan 030001, China
| | - Z Q Yang
- Department of Epidemiology, Shanxi Medical University, Taiyuan 030001, China
| | - R J Zhang
- Department of Epidemiology, Shanxi Medical University, Taiyuan 030001, China
| | - Y D Li
- Department of Epidemiology, Shanxi Medical University, Taiyuan 030001, China
| | - T J Zhao
- Department of Epidemiology, Shanxi Medical University, Taiyuan 030001, China
| | - L Z Yi
- Department of Epidemiology, Shanxi Medical University, Taiyuan 030001, China
| | - Y L Feng
- Department of Epidemiology, Shanxi Medical University, Taiyuan 030001, China
| | - S Y Feng
- Department of Obstetrics and Gynaecology, the Third People Hospital of Taiyuan City, Taiyuan 030001, China
| | - B Wang
- Department of Obstetrics and Gynaecology, the Third People Hospital of Taiyuan City, Taiyuan 030001, China
| | - S P Wang
- Department of Epidemiology, Shanxi Medical University, Taiyuan 030001, China
| |
Collapse
|
18
|
Zhi Y, Wu JX, Guo SJ, Xie SS, Zhou XT. Effect of acupuncture and moxibustion on serum brain-derived neurotropic factor level, C-reactive protein, and zinc level in patients with depression. Matrix Sci Med 2019. [DOI: 10.4103/mtsm.mtsm_18_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
19
|
Xu YT, Ye ZM, Ye JW, Cao LM, Huang RK, Wu JX, Zhou DD, Zhang XF, He CT, Zhang JP, Chen XM. Non-3d Metal Modulation of a Cobalt Imidazolate Framework for Excellent Electrocatalytic Oxygen Evolution in Neutral Media. Angew Chem Int Ed Engl 2018; 58:139-143. [PMID: 30320948 DOI: 10.1002/anie.201809144] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/16/2018] [Indexed: 12/29/2022]
Abstract
Cobalt imidazolate frameworks are classical electrocatalysts for the oxygen evolution reaction (OER) but suffer from the relatively low activity. Here, a non-3d metal modulation strategy is presented for enhancing the OER activity of cobalt imidazolate frameworks. Two isomorphous frameworks [Co4 (MO4 )(eim)6 ] (M=Mo or W, Heim=2-ethylimidazole) having Co(eim)3 (MO4 ) units and high water stabilities were designed and synthesized. In different neutral media, the Mo-modulated framework coated on a glassy carbon electrode shows the best OER performances (1 mA cm-2 at an overpotential of 210 mV in CO2 -saturated 0.5 m KHCO3 electrolyte and 2/10/22 mA cm-2 at overpotential of 388/490/570 mV in phosphate buffer solution) among non-precious metal catalysts and even outperforms RuO2 . Spectroscopic measurements and computational simulations revealed that the non-3d metals modulate the electronic structure of Co for optimum reactant/product adsorption and tailor the energy of rate-determining step to a more moderate value.
Collapse
Affiliation(s)
- Yan-Tong Xu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Zi-Ming Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jia-Wen Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Li-Ming Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.,MOE Key Laboratory of Functional Small Organic Molecule, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, China
| | - Rui-Kang Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Dong-Dong Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xue-Feng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Chun-Ting He
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China.,MOE Key Laboratory of Functional Small Organic Molecule, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang, 330022, China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou, 510275, China
| |
Collapse
|
20
|
Xu YT, Ye ZM, Ye JW, Cao LM, Huang RK, Wu JX, Zhou DD, Zhang XF, He CT, Zhang JP, Chen XM. Non-3d Metal Modulation of a Cobalt Imidazolate Framework for Excellent Electrocatalytic Oxygen Evolution in Neutral Media. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809144] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yan-Tong Xu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
| | - Zi-Ming Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
| | - Jia-Wen Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
| | - Li-Ming Cao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
- MOE Key Laboratory of Functional Small Organic Molecule; College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Rui-Kang Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
| | - Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
| | - Dong-Dong Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
| | - Xue-Feng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
| | - Chun-Ting He
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
- MOE Key Laboratory of Functional Small Organic Molecule; College of Chemistry and Chemical Engineering; Jiangxi Normal University; Nanchang 330022 China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry; School of Chemistry; Sun Yat-Sen University; Guangzhou 510275 China
| |
Collapse
|
21
|
Lu GF, Huang LN, Ren JL, Hu GM, Zheng ZH, Wu JX, Zhu YP, Tang FA. [The expression and significance of CD(276) and CD(133) in colorectal cancer and precancerous lesions]. Zhonghua Nei Ke Za Zhi 2018; 57:450-453. [PMID: 29925132 DOI: 10.3760/cma.j.issn.0578-1426.2018.06.011] [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: 06/08/2023]
Abstract
In order to study the significance of CD(276) and CD(133) in the development and progression of colorectal cancer (CRC), the expression of CD(276) and CD(133) was detected by immunohistochemistry in CRC and precancerous lesions. The results showed that the intensity of CD(276) and CD(133) in CRC samples was higher than that in adenoma group and non-adenoma group. CD(276) and CD(133) single and double positive expression were significantly correlated with CRC lymph node metastasis, distant metastasis and survival. CD(276) and CD(133) are significantly correlated to the development and progression of CRC and associated with poor prognosis.
Collapse
Affiliation(s)
- G F Lu
- Department of Gastroenterology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, China
| | | | | | | | | | | | | | | |
Collapse
|
22
|
Liu YH, Wang LM, Wu JX, Rong WQ, Wu F, Li MH, Zhang Y, Lin ST, Zheng YL, Feng QF. [A prospective pilot study of combined intra-operative radiotherapy for centrally located hepatocellular carcinomas]. Zhonghua Zhong Liu Za Zhi 2017; 39:926-930. [PMID: 29262510 DOI: 10.3760/cma.j.issn.0253-3766.2017.12.009] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To carry out a prospective cohort study of combined intra-operative radiotherapy for centrally located hepatocellular carcinomas (HCC) and to observe the safety and postoperative complications. Methods: A total of 79 patients with centrally located HCC who underwent hepatectomy were divided into two groups: experimental group (combined with targeted intra-operative radiotherapy, 32 cases) and control group (single surgical operation, 47 cases). Patients in the experimental group received intra-operative electron radiotherapy after tumor resection, while patients in the control group received to intra-operative electron radiotherapy.The haemorrhagia amount and operation time during the operation, intra-operative liver function and the recovery of liver and gastrointestinal tract of patients in these two groups were compared. Results: No postoperative 30-day mortality was observed in all of the patients. The average total operation time of patients in the experimental group was (319±76) min, significantly longer than (233±76) min of the control group (P<0.001). The average aspartate transaminase (AST) level of patients in the experimental group at postoperative day 1 was 562.5 U/L, significantly higher than 347.0 U/L of control group (P=0.031). However, the average prothrombin activity levels of patients in the experimental group at postoperative day 3 and day 7 were (68.3±17.9)% and (73.4±10.2)%, respectively, significantly lower than (78.9±15.9)% and (80.0±10.6)% of control group (both P<0.05). There were no significant differences of tumor volume, differentiation degree, satellite lesion, dorsal membrane invasion, microvascular invasion between these two groups (all P>0.05). There were no significant differences of hospital stay, ventilation time, the incidence of hepatic insufficiency, ascites, pleural effusion, infection, biliary fistula between these two groups (all P>0.05). There were no significant differences of alanine aminotransferase (ALT), albumin, total bilirubin between these two groups at postoperative day 1, 3, 5 and 7 (all of P>0.05). Conclusion: The resection of centrally located HCC combined with intra-operative radiotherapy may increase the total operation time, delay the early postoperative recovery of liver function, but it is still safe and feasible. Trial registration: National Cancer Centre /Cancer Hospital, Chinese Academy of Medical Sciences, ChiCTR-TRC-12002802.
Collapse
Affiliation(s)
- Y H Liu
- Department of Hepatobiliary Surgery National Cancer Centre /Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L M Wang
- Department of Hepatobiliary Surgery National Cancer Centre /Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J X Wu
- Department of Hepatobiliary Surgery National Cancer Centre /Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Q Rong
- Department of Hepatobiliary Surgery National Cancer Centre /Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - F Wu
- Department of Hepatobiliary Surgery National Cancer Centre /Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - M H Li
- Department of Radiation Oncology, National Cancer Centre /Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | | | - S T Lin
- Department of Hepatobiliary Surgery National Cancer Centre /Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y L Zheng
- Department of Hepatobiliary Surgery National Cancer Centre /Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Q F Feng
- Department of Radiation Oncology, National Cancer Centre /Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| |
Collapse
|
23
|
Zhang Y, Wang LM, Wu F, Rong WQ, Lin ST, Liu YH, Zheng YL, Wu JX. [Analysis of clinicopathological features and prognosis of 98 cases of small hepatocellular carcinoma]. Zhonghua Zhong Liu Za Zhi 2017; 39:389-394. [PMID: 28535659 DOI: 10.3760/cma.j.issn.0253-3766.2017.05.014] [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 analyze the clinicopathological features and prognosis of patients with small hepatocellular carcinoma. Methods: The clinicopathological and follow-up data of 98 patients with small hepatocellular carcinoma who underwent R0 resection from January 2009 to December 2013 were analyzed retrospectively. Results: All of the patients were followed up. Their postoperative 1-year, 3-year and 5-year overall survival rates were 99.0%, 91.7%, and 76.3%, respectively. Their postoperative median overall survival (OS) period was 52 months. The postoperative progression-free survival rates were 86.7%, 66.2% and 55.0%, respectively, and the median progression-free survival (PFS) period was 43.5 months. The univariate analysis showed that satellite nodules, liver capsule invasion and postoperative recurrence time were associated with OS (P<0.05), and long-term heavy drinking, satellite nodules and liver capsule invasion with PFS (P<0.05). The multivariate analysis indicated that long-term heavy drinking was an independent factor influencing the progression-free survival period of patients with small hepatocellular carcinoma (P=0.003) and postoperative recurrence time and liver capsule invasion were independent factors affecting their overall survival period (P<0.05). Conclusions: The treatment of small hepatocellular carcinoma still concentrates on the active treatment of surgery. It is beneficial to patients to minimize the resection scope of normal liver under the premise of R0 removal of tumor. Postoperative recurrence time of ≤2 years suggests poor prognosis of small hepatocellular carcinoma. Long-term heavy drinking can accelerate the recurrence of small hepatocellular carcinoma.
Collapse
Affiliation(s)
- Y Zhang
- Department of Hepatobiliary Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021
| | - L M Wang
- Department of Hepatobiliary Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021
| | - F Wu
- Department of Hepatobiliary Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021
| | - W Q Rong
- Department of Hepatobiliary Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021
| | - S T Lin
- Department of Hepatobiliary Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021
| | - Y H Liu
- Department of Hepatobiliary Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021
| | - Y L Zheng
- Department of Hepatobiliary Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021
| | - J X Wu
- Department of Hepatobiliary Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021
| |
Collapse
|
24
|
Peng T, Wang LM, Wu JX, Liu M, Li XY, Rong WQ, Wu F, Zhao WQ, Zhao GH. [Effects of perioperative transfusion of blood components on the long-term prognosis of hepatocellular carcinoma]. Zhonghua Yi Xue Za Zhi 2017; 97:1079-1083. [PMID: 28395433 DOI: 10.3760/cma.j.issn.0376-2491.2017.14.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effects of perioperative transfusion of blood components on the long-term prognosis of hepatocellular carcinoma (HCC) patients. Methods: A total of 339 patients with primary HCC who underwent curative hepatectomy between January 2003 and December 2010 at the Cancer Hospital, Chinese Academy of Medical Sciences were enrolled. The clinical data of the patients were retrospectively analyzed. These patients were divided into non-transfusion, fresh frozen plasma (FFP) transfusion only and concentrated red cells (CRC) transfusion groups. Disease-free survival and overall survival were estimated using the Kaplan-Meier method, and Cox regression was performed to identify clinicopathological factors related with survival. Results: Among the 339 patients, the 1-, 3- and 5-year disease-free survival rates were 63.1%, 35.4% and 22.4%, respectively, and the median disease-free survival was 22 months. While the 1-, 3- and 5-year overall survival rates were 90.5%, 69.5% and 56.4%, respectively, and the median overall survival was 72 months. The median disease-free survivals of the non-transfusion (n=181), FFP transfusion only (n=48) and CRC transfusion (n=110) groups were 28, 22 and 12 months, respectively, while the median overall survivals of the three groups were 99, 63 and 40 months respectively. Significant differences in the disease-free and overall survivals were observed among the three groups (both P<0.01). Multivariate Cox regression analyses showed that FFP transfusion only (HR=1.658, P=0.026), CRC transfusion (HR=1.470, P=0.030), serum alpha-fetoprotein>400 μg/L (HR=1.686, P=0.002), albumin<35 g/L (HR=1.782, P=0.047), tumor capsule (HR=0.597, P=0.012), tumor necrosis (HR=1.820, P=0.001) and the TNM stage Ⅲ or above (HR=2.537, P=0.000) were independent predictors of overall survival after hepatectomy. Conclusion: Both perioperative FFP only transfusion and CRC transfusion may have detrimental effect on the long-term prognosis of HCC.
Collapse
Affiliation(s)
- T Peng
- Department of Blood Transfusion, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Guan S, Wang Y, Zhang KT, Li XY, Wu JX. [Endoscopic nipple-sparing mastectomy with skin lifting system followed by immediate breast reconstruction]. Zhonghua Wai Ke Za Zhi 2017; 55:126-129. [PMID: 28162212 DOI: 10.3760/cma.j.issn.0529-5815.2017.02.010] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To discuss the surgical treatment and efficacy of endoscopic nipple-sparing mastectomy with skin lifting system (ENSMSLS) followed by immediate breast reconstruction. Methods: ENSMSLS was conducted on 21 patients followed by immediate breast reconstruction with implant via axillary incision from August 2014 to January 2016 in Oncology Center, Beijing Tongren Hospital, Capital Medical University. These 21 patients were frequency matched with 21 patients, who received nipple-sparing mastectomy via loop periareolar incision from November 2012 to May 2015 in the same center. These 21 patients formed the control group. The operation data of two groups were compared by t test and Fisher's exact test. Results: Differences in operation time ((185±43) minutes vs. (165±33) minutes, t=1.778, P=0.101), amount of bleeding ((60±48) ml vs. (75±57) ml, t=-0.535, P=0.329), and drainage ((240±112) ml vs. (201±91) ml, t=1.238, P=0.233) between these two groups of patients were not statistically significant. There was no nipple necrosis recorded in the ENSMSLS group, while there were three cases (14.3%) recorded in the control group. Two cases (9.5%) of nipple transposition were recorded in the ENSMSLS group, while five cases (23.8%) were recorded in the control group. Differences in nipple necrosis and nipple transposition were statistically significant (0 vs. 5, P=0.001). There were 16 cases (76.2%) of excellent appearance recorded in the ENSMSLS group, while there were 11 cases (52.4%) recorded in the control group. There were 5 cases (23.8%) of good appearance recorded in the ENSMSLS group, while there were 9 cases (42.9%) recorded in the control group. There was no case of fair appearance in the ENSMSLS group, while there was 1 case (4.8%) recorded in the control group. Difference in postoperative appearance was statistically significant (P=0.001). Conclusions: ENSMSLS significantly decreases the possibility of nipple necrosis and nipple transposition. This technique avoids visible incisions of breast. It also enhances the aesthetic appeal of reconstructed breasts.
Collapse
Affiliation(s)
- S Guan
- Oncology Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100176, China
| | | | | | | | | |
Collapse
|
26
|
Shen JQ, Liao PQ, Zhou DD, He CT, Wu JX, Zhang WX, Zhang JP, Chen XM. Modular and Stepwise Synthesis of a Hybrid Metal–Organic Framework for Efficient Electrocatalytic Oxygen Evolution. J Am Chem Soc 2017; 139:1778-1781. [DOI: 10.1021/jacs.6b12353] [Citation(s) in RCA: 282] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jian-Qiang Shen
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Pei-Qin Liao
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Dong-Dong Zhou
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Chun-Ting He
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Wei-Xiong Zhang
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xiao-Ming Chen
- MOE Key Laboratory of Bioinorganic
and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| |
Collapse
|
27
|
Lu XF, Gu LF, Wang JW, Wu JX, Liao PQ, Li GR. Bimetal-Organic Framework Derived CoFe 2 O 4 /C Porous Hybrid Nanorod Arrays as High-Performance Electrocatalysts for Oxygen Evolution Reaction. Adv Mater 2017; 29. [PMID: 27865016 DOI: 10.1002/adma.201604437] [Citation(s) in RCA: 323] [Impact Index Per Article: 46.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2016] [Revised: 09/05/2016] [Indexed: 05/11/2023]
Abstract
Porous CoFe2 O4 /C NRAs supported on nickel foam@NC (denoted as NF@NC-CoFe2 O4 /C NRAs) are directly fabricated by the carbonization of bimetal-organic framework NRAs grown on NF@poly-aniline(PANI), and they exhibit high electrocatalytic activity, low overpotential, and high stability for the oxygen evolution reaction in alkaline media.
Collapse
Affiliation(s)
- Xue-Feng Lu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Lin-Fei Gu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Jia-Wei Wang
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Jun-Xi Wu
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Pei-Qin Liao
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| | - Gao-Ren Li
- MOE Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, China
| |
Collapse
|
28
|
Bi C, Wang LM, An SL, Huang J, Feng RM, Wu F, Rong WQ, Wu JX. [Analysis of the survival of 123 patients with intrahepatic cholangiocarcinoma after surgical resection]. Zhonghua Zhong Liu Za Zhi 2016; 38:466-71. [PMID: 27346406 DOI: 10.3760/cma.j.issn.0253-3766.2016.06.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the prognostic factors for patients with intrahepatic cholangiocarcinoma after surgical resection. METHODS The clinicopathological and follow-up data of 123 patients with intrahepatic cholangiocarcinoma who underwent surgical resection in Cancer Hospital, Chinese Academy of Medical Sciences between January 1999 and June 2015 were collected and reviewed, and their survival and prognosis were analyzed with the Kaplan-Meier method and Cox regression model. RESULTS The median follow-up time was 22 months and median recurrence-free survival time was 8.97 months. The 1-, 2- and 3-year recurrence rates were 58.6%, 68.9% and 76.5%, respectively. Cox multivariate regression analysis showed that preoperative rise in CEA, lymph node metastasis, multiple lesions, extrahepatic invasion, and combination of tumor necrosis were significant adverse prognostic factors affecting the postoperative recurrence-free survival in patients with intrahepatic cholangiocarcinoma after surgical resection (P<0.05 for all). The median overall survival time was 21.17 months, and the 1-, 3- and 5-year overall survival rates were 76.6%, 33.2% and 26.1%, respectively. The Cox multivariate regression analysis showed that preoperative rise in CEA, lymph node metastasis, multiple lesions, and extrahepatic invasion were significant adverse prognostic factors affecting the postoperative overall survival in patients with intrahepatic cholangiocarcinoma after surgical resection(P<0.05 for all). CONCLUSION Preoperative rise in CEA, lymph node metastasis, multiple lesions and extrahepatic invasion are significant adverse prognostic factors for patients with intrahepatic cholangiocarcinoma after surgical resection.
Collapse
Affiliation(s)
- C Bi
- Department of Abdominal Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L M Wang
- Department of Abdominal Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - S L An
- Department of Surgical Oncology, Beijing Shijitan Hospital, Beijing 100038, China
| | - J Huang
- Department of Medical Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - R M Feng
- Department of Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - F Wu
- Department of Abdominal Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - W Q Rong
- Department of Abdominal Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J X Wu
- Department of Abdominal Surgery, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| |
Collapse
|
29
|
Sho S, Yilma M, Yeh MW, Livhits M, Wu JX, Hoang JK, Sepahdari AR. Prospective Validation of Two 4D-CT-Based Scoring Systems for Prediction of Multigland Disease in Primary Hyperparathyroidism. AJNR Am J Neuroradiol 2016; 37:2323-2327. [PMID: 27659191 DOI: 10.3174/ajnr.a4948] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Accepted: 06/11/2016] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Patients with multigland primary hyperparathyroidism are at higher risk for missed lesions on imaging and failed parathyroidectomy. The purpose of this study was to prospectively validate the ability of previously derived predictive score systems, the composite multigland disease score, and the multiphase multidetector contrast-enhanced CT (4D-CT) composite multigland disease score, to identify patients with a high likelihood of multigland disease. MATERIALS AND METHODS This was a prospective study of 71 patients with primary hyperparathyroidism who underwent 4D-CT and successful parathyroidectomy. The size and number of lesions identified on 4D-CT, serum calcium levels, and parathyroid hormone levels were collected. A composite multigland disease score was calculated from 4D-CT imaging findings and the Wisconsin Index (the product of the serum calcium and parathyroid hormone levels). A 4D-CT multigland disease score was obtained by using the CT data alone. RESULTS Twenty-eight patients with multigland disease were compared with 43 patients with single-gland disease. Patients with multigland disease had a significantly smaller lesion size (P < .01) and a higher likelihood of having either ≥2 or 0 lesions identified on 4D-CT (P < .01). Composite multigland disease scores of ≥4, ≥5, and 6 had specificities of 72%, 86%, and 100% for multigland disease, respectively. 4D-CT multigland disease scores of ≥3 and 4 had specificities of 74% and 88%. CONCLUSIONS Predictive scoring systems based on 4D-CT data, with or without laboratory data, were able to identify a subgroup of patients with a high likelihood of multigland disease in a prospectively accrued population of patients with primary hyperparathyroidism. These scoring systems can aid in surgical planning.
Collapse
Affiliation(s)
- S Sho
- From the Department of Surgery (S.S., M.Y., M.W.Y., M.L., J.X.W.), Section of Endocrine Surgery
| | - M Yilma
- From the Department of Surgery (S.S., M.Y., M.W.Y., M.L., J.X.W.), Section of Endocrine Surgery
| | - M W Yeh
- From the Department of Surgery (S.S., M.Y., M.W.Y., M.L., J.X.W.), Section of Endocrine Surgery
| | - M Livhits
- From the Department of Surgery (S.S., M.Y., M.W.Y., M.L., J.X.W.), Section of Endocrine Surgery
| | - J X Wu
- From the Department of Surgery (S.S., M.Y., M.W.Y., M.L., J.X.W.), Section of Endocrine Surgery
| | - J K Hoang
- Department of Radiology (J.K.H.), Duke University Medical Center, Durham, North Carolina
| | - A R Sepahdari
- Department of Radiological Sciences (A.R.S.), David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| |
Collapse
|
30
|
Wu JX, Zhou DD, Zhang C, Zhou HL, Zhang JP. From discrete complex to 1-D coordination polymer by subtle variation of ligand donor: structures and electrical conductivities. J COORD CHEM 2016. [DOI: 10.1080/00958972.2016.1190838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Jun-Xi Wu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, PR China
| | - Dong-Dong Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, PR China
| | - Chi Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, PR China
| | - Hao-Long Zhou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, PR China
| | - Jie-Peng Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, PR China
| |
Collapse
|
31
|
Arcega R, Wu JX, Magaki S, Donahue TR, Wang HL. A hitherto undescribed benign mesenchymal polyp of the gallbladder: edematous angiomyolipoma-like polyp. Acta Gastroenterol Belg 2016; 79:245-250. [PMID: 27821035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report a case of two peculiar gallbladder polyps in a sixty-four year old male who presented with symptomatic cholelithiasis. Cholecystectomy was performed, which revealed two polyps measuring 0.6 cm and 1.9 cm, located in the body of the gallbladder. Microscopic examination of the polyps showed composite mesenchymal lesions with vascular proliferation of small-to-medium sized arterioles, myoid stroma, and lipomatous periphery. The myoid component was characterized by wisps of bland smooth muscle fibers loosely separated by proteinaceous and focally myxoid matrix. The surface of the polyps was lined by a single layer of bland epithelial cells. The unique histomorphologic features differentiate the lesions from other known mesenchymal polyps of the gallbladder. We propose the name "edematous angiomyolipoma-like polyp" for these rare lesions given their histomorphologic similarity to angiomyolipoma. (Acta gastroenterol. belg., 2016, 79, 371-374).
Collapse
|
32
|
Lu XF, Liao PQ, Wang JW, Wu JX, Chen XW, He CT, Zhang JP, Li GR, Chen XM. An Alkaline-Stable, Metal Hydroxide Mimicking Metal–Organic Framework for Efficient Electrocatalytic Oxygen Evolution. J Am Chem Soc 2016; 138:8336-9. [DOI: 10.1021/jacs.6b03125] [Citation(s) in RCA: 389] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xue-Feng Lu
- MOE Key
Laboratory of Bioinorganic
and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry,
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Pei-Qin Liao
- MOE Key
Laboratory of Bioinorganic
and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry,
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jia-Wei Wang
- MOE Key
Laboratory of Bioinorganic
and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry,
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jun-Xi Wu
- MOE Key
Laboratory of Bioinorganic
and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry,
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xun-Wei Chen
- MOE Key
Laboratory of Bioinorganic
and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry,
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Chun-Ting He
- MOE Key
Laboratory of Bioinorganic
and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry,
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jie-Peng Zhang
- MOE Key
Laboratory of Bioinorganic
and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry,
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Gao-Ren Li
- MOE Key
Laboratory of Bioinorganic
and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry,
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| | - Xiao-Ming Chen
- MOE Key
Laboratory of Bioinorganic
and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry,
School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China
| |
Collapse
|
33
|
Wu JX, Zhu C, Yang YP. Dynamic lossless polarization gate using a coherently prepared atomic medium. Opt Lett 2015; 40:4975-4978. [PMID: 26512497 DOI: 10.1364/ol.40.004975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We propose a dynamic lossless all-optical polarization gate using coherently prepared atomic media. We show that the loss/gain of two circularly polarized components of a linearly polarized probe field can be simultaneously eliminated by locking the power of the pump field and the external magnetic field intensity simultaneously. Using the polarization selective Kerr phase shift method, we can write π/2 (-π/2) phase shift to the right (left) circularly polarized component of the linearly polarized probe field with a choice of "magic" wavelength for the probe field. Consequently, the linear polarization state for the probe field acquires a 90° rotation at the exit of the medium. The scheme proposed in this Letter is helpful for applications in optical and quantum information processing and computation.
Collapse
|
34
|
Abstract
Peanut (Arachis hypogaea) is one of the most important oil crops and food legumes worldwide. China sows approximately 3.5 million hectares each year and produces 40% of the world's peanuts. Fungal diseases are among the main biotic stresses affecting peanut production. Root rot is a serious disease caused by several fungi. Pythium spp., Fusarium spp., and Rhizopus spp. are some of the root rot fungi that have been reported in China. In 2012 and 2013, root rot symptoms were observed in several fields in Laixi District, Qingdao City, Shandong Province, China. The first symptoms appeared in July. Initial symptoms of the disease were brown spots on the stem base and root. Affected plants were stunted, with leaf chlorosis, reduced growth, or sudden wilting. As disease progressed, the infected tissues showed brown discoloration and rot, and abundant dark brown and black powdery spores were visible on the surfaces of affected parts. Eventually, affected plants collapsed and died. To isolate the causal organism, roots and stems were cut into sections, which were surface-disinfected with 70% ethanol solution (v/v) for 20 s, soaked in 0.1% mercuric chloride solution for 50 s, rinsed with sterilized water three times, dried, placed on Czapek's Dox agar supplemented with chloramphenicol (100 μg/ml), and incubated at 28°C for 7 days. Fungal colonies were white initially and then covered with a dense layer of dark brown or black conidial heads. The conidial head was radiate; vesicles were nearly spherical and covered with irregular metulae and phialides. Conidia were globose or subglobose (3.0 to 5.5 μm in diameter), dark brown to black, with rough cell walls. Total genomic DNA was extracted from mycelia using the EasyPure Genomic DNA Kit (TransGEN, Beijing, China). The rDNA-ITS region was amplified using PCR with the universal fungal primers ITS1 and ITS4 (2). The purified products were separately sequenced in both directions using the same primer pair. The sequences (GenBank Accession No. KJ848716) obtained were 99% similar to the ITS sequence of isolates of Aspergillus niger. This, together with the morphological characters (1) described above, suggested that the microorganism we had isolated was A. niger. Koch's postulates were completed in the laboratory by inoculating peanut. Thirty Huayu20 peanut seeds were placed in a 500-ml sterile pot with 300 g of autoclaved soil. Twenty days after seedling emergence, 15 peanut plants were wounded with a needle and inoculated with 5 ml of conidia suspension (106 ml-1). The same number of peanuts were similarly wounded and inoculated with 5 ml of sterile distilled water to serve as controls in the same pot. All peanuts were kept in a randomized complete block design at 30°C under a 12-h photoperiod. After 7 days, disease symptoms similar to those observed in the field appeared in all inoculated but not in non-inoculated peanuts. The tests were repeated three times in the greenhouse. Koch's postulates were satisfied after re-isolating the A. niger from inoculated peanuts using the method described above. To our knowledge, this is the first report of A. niger causing root rot in peanut in China. References: (1) M. A. Klich. Page 12 in: Identification of Common Aspergillus Species. Centraalbureau voor Schimmelcultures, Utrecht, The Netherlands, 2002. (2) T. J. White et al. Page 315 in: PCR Protocols: A Guide to Methods and Applications. Academic Press, San Diego, CA, 1990.
Collapse
Affiliation(s)
- M L Xu
- Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, and Shandong Peanut Research Institute, Qingdao, Shandong Province, China
| | - J G Yang
- Tobacco Research Institute of CAAS, Beijing, China
| | - J X Wu
- Shandong Peanut Research Institute, Qingdao, Shandong Province, China
| | - Y C Chi
- Shandong Peanut Research Institute, Qingdao, Shandong Province, China
| | - L H Xie
- Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, China. Funded by Open Foundation of Key Laboratory of Biology and Genetic Improvement of Oil Crops, China's Ministry of Agriculture (2014011); Open Foundation of Key Laboratory of Pests Monitoring and Management of Tobacco, China's Ministry of Agriculture (IPM2013-03); Qingdao Foundation (13-1-4-124-jch)
| |
Collapse
|
35
|
Abstract
The experimental host range of Maize chlorotic mottle virus (MCMV) is restricted to the Gramineae (Poaceae) family with maize as a natural host. However, MCMV has never been found to infect sugarcane (Saccharum officinarum L.) plants in fields. MCMV can cause corn lethal necrosis disease (CLND) resulting from synergistic interaction between this virus and Maize dwarf mosaic virus (MDMV), Wheat streak mosaic virus (WSMV), or Sugarcane mosaic virus (SCMV) (1). MCMV was first found on maize plants in Yunnan Province in China in 2011 (2), and co-infection of MCMV and SCMV was reported on maize in Yunnan Province in China in 2013 (1). In January 2013, while surveying MCMV on maize in Yunnan Province, we found sugarcane planted near an MCMV-infected maize field with chlorotic and mosaic viral symptoms. Five symptomatic sugarcane plants were collected and screened for MCMV using a monoclonal antibody-based dot-ELISA (1). MCMV was detected in all five sugarcane samples using this assay. To further confirm the ELISA results, total RNA was isolated from sugarcane leaves using TRIzol reagent (Invitrogen, Carlsbad, CA) and assayed for MCMV by reverse transcription (RT)-PCR with primers M69F (ACAGGACACCGTTGCCGTTTAT) and M70R (CATGGGTGGGTCAAGGCTTACT) designed to amplify nt 3301 to 4282 of MCMV maize isolate YN2 (GenBank Accession No. JQ982468). The expected 982-bp amplicon was obtained from all five sugarcane samples confirming that the five sugarcane samples were infected with MCMV. Using purified total RNA as a template, RT-PCR was performed using SuperScript III Reverse Transcriptase (Invitrogen, Carlsbad, CA) and Pfusion High-Fidelity DNA polymerase (New England Biolabs, Ipswich, MA) with primers M10 (AGGTAATCTGCGGCAACAGACC, 1 to 22 nt) and M36 (GGGCCGGAAGAGAGGGGCATTAC, 4436 to 4414 nt). The sequence of the resulting cDNA amplicon (KF010583) indicated that the MCMV sugarcane isolate shares 99% sequence identity with the MCMV maize isolate YN2 from Yunnan Province in China. Attempts to mechanically transmit MCMV from sugarcane to maize were unsuccessful. However, quantitative real time RT-PCR result revealed that the virus titer in sugarcane plants was about 6 to 10 times lower than that in maize plants (data not shown). SCMV was also detected in the five MCMV-infected sugarcane samples by RT-PCR with primers W48F (GTGTGGAATGGTTCACTCAAAGCTG) and W49R (GGTGTTGCAATTGGTGTGTACACG), designed to amplify a 395-bp fragment of the SCMV Beijing isolate (AY042184). The sequence of the amplified products shared 98% identity with SCMV isolate JP2 (JF488065). Thus, we think chlorotic and mosaic symptoms on the sugarcane plant samples were caused by co-infection of MCMV and SCMV and the sugarcane plants harbor both viruses implicated in causing maize lethal necrosis. This study indicates that MCMV naturally infects sugarcane plants. To our knowledge, this is the first report of MCMV infecting sugarcane plants. References: (1) J.-X. Wu et al. J. Zhejiang Univ-Sci B (Biomed & Biotechnol). 14:555, 2013. (2) L. Xie et al. J. Phytopathol. 159:191, 2011.
Collapse
Affiliation(s)
- Q Wang
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - X P Zhou
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| | - J X Wu
- State Key Laboratory of Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, P. R. China
| |
Collapse
|
36
|
Wang K, Wu JX, Zhang HY. Dissipation of difenoconazole in rice, paddy soil, and paddy water under field conditions. Ecotoxicol Environ Saf 2012; 86:111-115. [PMID: 23062559 DOI: 10.1016/j.ecoenv.2012.08.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2012] [Revised: 08/10/2012] [Accepted: 08/29/2012] [Indexed: 06/01/2023]
Abstract
An analytical method for determining the residue of a broad-spectrum fungicide, difenoconazole, in soil and rice crop matrices is described. Mean recoveries and relative standard deviation (RSD) in paddy soil, water, rice plant, rice hull, and husked rice matrices at three spiking levels ranged 71.8-115.8% and 1.6-7.8%, respectively. The half-life of difenoconazole was determined at three different field sites in Guangxi, Hubei, and Zhejiang provinces in China via a dissipation experiment, in which a 30% aqueous suspension concentrate of difenoconazole and propiconazole (15% difenoconazole, 15% propiconazole) was applied at high dosages. The half-lives of difenoconazole in water, rice plant, and soil in Guangxi were 0.30, 2.59 and 23.26 days, 2.50, 1.77 and 2.82 days in Hubei, and 2.71, 1.39 and 6.61 days in Zhejiang, respectively. Difenoconazole concentrations in soil, rice hull, and husked rice samples were below the detection limit at pre-harvest intervals of 30, 40 and 50 days after fungicide application. The concentration in straw at pre-harvest intervals of 30, 40 and 50 days in the three experimental locations ranged from 0.037mg kg(-1) and 2.53mg kg(-1).
Collapse
Affiliation(s)
- K Wang
- College of Science, China Agricultural University, Beijing 100193, PR China
| | | | | |
Collapse
|
37
|
Xue C, Huang Y, Huang PY, Yu QT, Pan JJ, Liu LZ, Song XQ, Lin SJ, Wu JX, Zhang JW, Zhao HY, Xu F, Liu JL, Hu ZH, Zhao LP, Zhao YY, Wu X, Zhang J, Ma YX, Zhang L. Phase II study of sorafenib in combination with cisplatin and 5-fluorouracil to treat recurrent or metastatic nasopharyngeal carcinoma. Ann Oncol 2012; 24:1055-61. [PMID: 23172635 DOI: 10.1093/annonc/mds581] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND We aimed to investigate the efficacy and tolerability of sorafenib combined with cisplatin and 5-fluorouracil (5-FU) in patients with recurrent or metastatic nasopharyngeal carcinoma (NPC). PATIENTS AND METHODS It was a Simon two-stage designed trial. Chemotherapy-naive patients with recurrent or metastatic disease were enrolled. The regimen was sorafenib 400 mg orally b.i.d., cisplatin 80 mg/m(2) i.v. day 1, and 5-FU 1000 mg/m(2)/day CIV for 4 days, repeated every 21 days. After a maximum of six cycles of chemotherapy, patients received maintenance of sorafenib. RESULTS In total, 54 patients were enrolled. The objective response rate reached 77.8%, including 1 complete response and 41 partial responses. The median progression-free survival was 7.2 months (95% CI 6.8-8.4 months), and the median overall survival was 11.8 months (95% CI 10.6-18.7 months). Major toxic effects included hand-foot skin reaction, myelosuppression, and gastrointestinal (GI) reaction. The incidence of hemorrhage was 22.2%, and one patient with liver metastases died of GI bleeding. Contrast-enhanced ultrasonography was carried out in a subset of patients with liver metastases. CONCLUSION Combination of sorafenib, cisplatin (80 mg/m(2)) and 5-FU (3000 mg/m(2)) was tolerable and feasible in recurrent or metastatic NPC. Further randomized trials to compare sorafenib plus cisplatin and 5-FU with standard dose of cisplatin plus 5-FU in NPC are warranted.
Collapse
Affiliation(s)
- C Xue
- State Key Laboratory of Oncology in South China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Zhou B, Li C, Qi W, Zhang Y, Zhang F, Wu JX, Hu YN, Wu DM, Liu Y, Yan TT, Jing Q, Liu MF, Zhai QW. Downregulation of miR-181a upregulates sirtuin-1 (SIRT1) and improves hepatic insulin sensitivity. Diabetologia 2012; 55:2032-43. [PMID: 22476949 DOI: 10.1007/s00125-012-2539-8] [Citation(s) in RCA: 167] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Accepted: 02/28/2012] [Indexed: 12/21/2022]
Abstract
AIMS/HYPOTHESIS Sirtuin-1 (SIRT1) is a potential therapeutic target to combat insulin resistance and type 2 diabetes. This study aims to identify a microRNA (miRNA) targeting SIRT1 to regulate hepatic insulin sensitivity. METHODS Luciferase assay combined with mutation and immunoblotting was used to screen and verify the bioinformatically predicted miRNAs. miRNA and mRNA levels were measured by real-time PCR. Insulin signalling was detected by immunoblotting and glycogen synthesis. Involvement of SIRT1 was studied with adenovirus, inhibitor and SIRT1-deficient hepatocytes. The role of miR-181a in vivo was explored with adenovirus and locked nucleic acid antisense oligonucleotides. RESULTS miR-181a targets the 3' untranslated region (3'UTR) of Sirt1 mRNA through a miR-181a binding site, and downregulates SIRT1 protein abundance at the translational level. miR-181a is increased in insulin-resistant cultured hepatocytes and liver, and in the serum of diabetic patients. Overexpression of miR-181a decreases SIRT1 protein levels and activity, and causes insulin resistance in hepatic cells. Inhibition of miR-181a by antisense oligonucleotides increases SIRT1 protein levels and activity, and improves insulin sensitivity in hepatocytes. Ectopic expression of SIRT1 abrogates the effect of miR-181a on insulin sensitivity, and inhibition of SIRT1 activity or SIRT1 deficiency markedly attenuated the improvement in insulin sensitivity induced by antisense miR-181a. In addition, overexpression of miR-181a by adenovirus impairs hepatic insulin signalling, and intraperitoneal injection of locked nucleic acid antisense oligonucleotides for miR-181a improves glucose homeostasis in diet-induced obesity mice. CONCLUSIONS/INTERPRETATION miR-181a regulates SIRT1 and improves hepatic insulin sensitivity. Inhibition of miR-181a might be a potential new strategy for treating insulin resistance and type 2 diabetes.
Collapse
Affiliation(s)
- B Zhou
- Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 294 Taiyuan Road, Shanghai 200031, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Wu JX, Xu MY, Miao XR, Lu ZJ, Yuan XM, Li XQ, Yu WF. Functional up-regulation of P2X3 receptors in dorsal root ganglion in a rat model of bone cancer pain. Eur J Pain 2012; 16:1378-88. [PMID: 22528605 DOI: 10.1002/j.1532-2149.2012.00149.x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/20/2012] [Indexed: 12/30/2022]
Abstract
BACKGROUND Cancer-induced bone pain remains a clinical challenge due to the poor understanding of the mechanisms. Recent study revealed extracellular adenosine triphosphate (ATP) and P2X receptors may be implicated in nociceptive signalling under cancer pain state. Therefore, here we investigated the potential role of P2X(3) receptor in a rat model of bone cancer pain. METHODS Walker 256 tumour cells were inoculated into the left tibia of Wistar rats. The model was verified by X-ray imaging, pathology and behaviour examinations. The expression of P2X(3) receptors in dorsal root ganglia (DRG) was examined. Functional significance of altered P2X(3) receptors was investigated by measuring influx upon α,β-meATP stimulation in acutely dissociated DRG neurons. Moreover, A-317491, an antagonist of P2X(3) receptors, was administrated intrathecally or locally to evaluate its analgesia effect in the cancer pain animals. RESULTS The P2X(3) receptor was up-regulated for about 50% in DRG neurons in rats with bone cancer at both protein and mRNA levels and correlated with the pain behaviour in bone cancer rats. A 51.9% increase of α,β-me ATP (10 μM, for 4 s) evoked transient response currents and a higher percentage of neurons responsive to the application of α,β-me ATP was detected in bone cancer rats. Intrathecal or local injection of A-317491 significantly attenuated pain behaviour induced by bone cancer. CONCLUSIONS These results suggest that the P2X(3) receptor is functionally up-regulated in DRG in cancer rats. P2X(3) receptor is a promising target for therapeutic intervention in cancer patients for pain management.
Collapse
Affiliation(s)
- J X Wu
- Department of Anesthesiology, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai, China
| | | | | | | | | | | | | |
Collapse
|
40
|
Abstract
Nine samples of diseased Malvastrum coromandelianum plants collected from the fields in Yunnan province of China were found to be infected with Malvastrum yellow vein Yunnan virus (MYVYNV), when tested by PCR using specific primers. The results of PCR and Southern blot analysis showed that only 4 samples out of 9 were associated with the satellite DNAb molecules. Their sequence analysis indicated that DNAb molecules share 97.8%-99.4% of nucleotide sequence identities with DNAb associated with MYVYNV isolate Y160 and less than 82.0% with those associated with other begomoviruses. Two infectious clones of MYVYNV (isolates Y160 and Y277) produced yellow vein, vein thickening and upward leaf curl symptoms in Nicotiana benthamiana plants. In the presence of its cognate DNAb, the symptoms changed to downward leaf curl and crinkle. Southern blot analysis showed that DNAb could increase accumulation of its cognate virus in the infected N. benthamiana plants. The above results indicated that MYVYNV is a monopartite begomovirus and its association with DNAb is not necessary for the infection of plants, but is able to intensify symptoms specific for the disease.
Collapse
Affiliation(s)
- T Jiang
- Key Laboratory of Molecular Biology of Crop Pathogens and Insects of MOA, Institute of Biotechnology, Zhejiang University, Hangzhou, P.R. China
| | | | | | | | | |
Collapse
|
41
|
Jiao JG, Yang LZ, Wu JX, Li HX, Ellis EC. [Distribution characteristics of soil organic carbon, nitrogen and phosphorus in densely populated village landscapes of different hilly regions of China]. Ying Yong Sheng Tai Xue Bao 2007; 18:1471-8. [PMID: 17886637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Based on high spatial resolution remote sensing map (1 m) and sampling with a stratified design on different site types, the effects of fine-scale land use patterns in villages on top soil (0-30 cm) organic carbon (OC), total nitrogen (TN) and total phosphorus (TP) within and across the densely populated hilly landscapes, i. e., Sichuan Hilly Region (SIHR; Jintang County, Sichuan Province), Subtropical Hilly Region (SUHR; Yiyang County, Hunan Province), and Tropical Hilly Region (THR; Dianbai County, Guangdong Province), were investigated. The results showed that soil OC density was decreased in the order of SUHR (2.72 +/- 0.76 kg x m(-2)) > THR (2.65 +/- 0.73 kg x m(-2)) > SIHR (2.15 +/- 0.57 kg x m(-2)), TN density was in the order of SUHR (0.28 +/- 0.06 kg x m(-2)) > SIHR (0.27 +/- 0.06 kg x m(-2) > THR (0.21 +/- 0.06 kg x m(-2)), and TP density was in the order of SIHR (0.19 +/- 0.04 kg x m(-2)) > SUHR (0.11 +/- 0.03 kg x m(-2)) > THR (0.08 +/- 0.04 kg x m(-2)). The fine-scale landscape units (ecotopes) with the highest soil OC, TN and/or TP stocks were rainfed annual crops in SIHR, paddy rice in SUHR, and open canopy trees and brush in THR, respectively. In all hilly regions, paddy and forest land use classes had the highest soil OC and TN density, while mined areas had the lowest soil OC and TN density, with the distribution of TP density showing a more complicated pattern than that of OC and TN. Ecotope level analysis could reflect the soil organic carbon, nitrogen and phosphorus distribution in densely populated village landscape of hilly regions more comprehensively than land use or land cover analysis.
Collapse
Affiliation(s)
- Jia-Guo Jiao
- College of Resources & Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China.
| | | | | | | | | |
Collapse
|
42
|
Ni XG, Bai XF, Mao YL, Shao YF, Wu JX, Shan Y, Wang CF, Wang J, Tian YT, Liu Q, Xu DK, Zhao P. The clinical value of serum CEA, CA19-9, and CA242 in the diagnosis and prognosis of pancreatic cancer. Eur J Surg Oncol 2005; 31:164-9. [PMID: 15698733 DOI: 10.1016/j.ejso.2004.09.007] [Citation(s) in RCA: 206] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/03/2004] [Indexed: 02/07/2023] Open
Abstract
AIM Serum tumour markers carcinoembryonic antigen (CEA), carbohydrate antigen 19-9 (CA19-9) and CA242 were investigated to evaluate the values of single and combined test in the diagnosis and prognosis of pancreatic cancer. METHODS Pre-operative serum CEA, CA19-9 and CA242 were measured in 105 pancreatic cancers, 70 non-pancreatic malignancies and 30 benign pancreatic diseases. RESULTS The sensitivity of CA19-9 alone was the highest in pancreatic cancer patients (80%), but the specificity was significantly lower than that of CEA and CA242 (P<0.01). The combination of CEA and CA242 could increase the specificity to 92%. In serum CA242 positive patients, the survival time was remarkably shorter than that of patients with negative result (P<0.01). The survival time in patients with more than two markers positive expression of CEA, CA19-9 and CA242 was obviously shorter than that of only one or no marker positive expression (P<0.05). CONCLUSION The diagnostic rate of CA19-9 in pancreatic cancer is better than that of CEA and CA242. Combined detection of CEA and CA242 can improve the diagnostic specificity obviously. High levels of serum markers are associated with advanced stage of the disease. Patients with two or three markers positive expression of CEA, CA19-9, and CA242 simultaneously had a shorter survival time.
Collapse
Affiliation(s)
- X G Ni
- Department of Abdominal Surgery, Cancer Institute and Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Abstract
[reaction--see text] Alcohols were efficiently converted to alkyl halides using 1-n-butyl-3-methylylimidazolium halides (ionic liquids) in the presence of Brønsted acids at room temperature. The alkyl halide products were easily isolated from the reaction mixture via simple decantation or extraction, and the 1-n-butyl-3-methylimidazolium cation could be recycled for further uses.
Collapse
Affiliation(s)
- R X Ren
- Max Tishler Laboratory of Organic Chemistry, Department of Chemistry, Wesleyan University, Middletown, Connecticut 06459, USA.
| | | |
Collapse
|
44
|
Abstract
Grubbs' olefin metathesis reaction was utilized to prepare a macrocyclic variant of a linear Grb2 SH2 domain antagonist in an attempt to induce a beta-bend conformation known to be required for high affinity binding. In extracellular Grb2 SH2 domain binding assays, the macrocyclic analogue exhibited an approximate 100-fold enhancement in binding potency relative to its linear counterpart. The macrocycle was not as effective in whole cell binding assays as would be expected based on its extracellular binding potency.
Collapse
Affiliation(s)
- Y Gao
- Laboratory of Medicinal Chemistry, Center for Cancer Research, NCI at Frederick, National Institutes of Health, MD 21702, Frederick, USA
| | | | | | | | | |
Collapse
|
45
|
Burke TR, Yao ZJ, Gao Y, Wu JX, Zhu X, Luo JH, Guo R, Yang D. N-terminal carboxyl and tetrazole-containing amides as adjuvants to Grb2 SH2 domain ligand binding. Bioorg Med Chem 2001; 9:1439-45. [PMID: 11408162 DOI: 10.1016/s0968-0896(01)00014-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
High affinity binding of peptides to Src homology 2 (SH2) domains, often requires the presence of phosphotyrosyl (pTyr) or pTyr-mimicking moieties in the N-terminal position of the binding ligand. Several reports have shown that N(alpha)-acylation of the critical pTyr residue can result in increased SH2 domain binding potency. For Grb2 SH2 domains which recognize pTyr-Xxx-Asn-NH(2) motifs, significant potency enhancement can be incurred by N(alpha)-(3-amino)Z derivatization of tripeptides such as pTyr-Ile-Asn-NH(2). Using ligands based on the high affinity pY-Ac(6)c-Asn-(naphthylpropylamide) motif, (where Ac(6)c=1-aminocyclohexanecarboxylic acid), additional reports have shown moderate potentiating effects of N(alpha)-oxalyl derivatization. The current study examined variations of the N(alpha)-oxalyl theme in the context of a Xxx-Ac(6)c-Asn-(naphthylpropylamide) platform, where Xxx=the hydrolytically stable pTyr mimetics phosphonomethyl phenylalanine (Pmp) or carboxymethyl phenylalanine (Cmf). The effects of N(alpha)-(3-amino)Z derivatization were also investigated for this platform, to ascertain whether the large binding enhancement reported for tripeptides such as pTyr-Ile-Asn-NH(2) could be observed. In ELISA-based extracellular Grb2 SH2 domain binding assays, it was found for the Pmp-based series, that extending the oxalyl carboxyl out by one methylene unit or replacing carboxyl functionality with a tetrazole isostere, resulted in binding potency greater than the parent N(alpha)-acetyl-containing compound, with enhancement approximating that observed for the N(alpha)-oxalyl derivative. When Cmf was used as the pTyr mimetic, only modest differences in IC(50) values were observed for the series. Examination of the N(alpha)-(3-amino)Z derivatized Pmp-Ac(6)c-Asn-(naphthylpropylamide), showed that binding affinity was reduced relative to the parent N(alpha)-acetyl analogue, in contrast to the reported significant enhancement of affinity observed with other peptide ligands. Treatment of MDA-453 tumor cells, which are mitogenically driven through erbB-2 tyrosine kinase-dependent pathways, with Pmp-containing inhibitors resulted in growth inhibition, with the N(alpha)-oxalyl and N(alpha)-malonyl-containing compounds exhibiting IC(50) values (4.3 and 4.6 microM, respectively) approximately five-fold lower than the parent N(alpha)-acetyl-containing compound. Tetrazole and N(alpha)-(3-amino)Z-containing inhibitors were from two- to four-fold less potent than these latter analogues in the growth inhibition assays.
Collapse
Affiliation(s)
- T R Burke
- Laboratory of Medicinal Chemistry, Division of Basic Sciences, National Cancer Institute, National Institutes of Health, Building 376, FCRDC, Frederick, MD 21702-1201, USA.
| | | | | | | | | | | | | | | |
Collapse
|
46
|
Huang JB, Zhang ZX, Wu JX. [Clinical characteristics of Parkinson's disease in natural population]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2001; 23:19-22. [PMID: 12905811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
OBJECTIVE To study the Clinical characteristics of Parkinson's disease(PD) in natural population. METHODS All the patients diagnosed as Parkinsonism from a prevalence study in Beijing in 1997 were collected for investigation. The spectrum of the clinical features of Parkinsonism and the onset, progression and prognosis of PD were analysed, as well as the impact factors to the prognosis were analysed. RESULTS 109 cases were ascertained as PD from the sample population, in which 64(58.7%) were PD, 11 (10.1%) were Parkinson plus syndrome and 34(31.2%) were symptom Parkinsonism. 30 of the 64 PD cases were male. The median age of PD was 74.5 years. The median age at onset was 68 years old. The median duration was 5 years. The average Hoehn-Yahr staging score was 2.81. The clinical characteristics of PD and other Parkinsonism were compared, as asymmetry of symptoms and signs was an important feature to differentiate PD from other Parkinsonism. 20.3 percent of PD cases were associated with dementia. 16(25%) of the 64 PD cases initiated with essential tremor and developed to PD during 6-49 years after the onset of tremor. Tremor was the dominant initial symptoms of PD(60.9%). Type of initial symptoms was a relatively definite impact factor to the prognosis of PD. Levodopa treatment was likely to delay the duration of PD. CONCLUSIONS The clinical features of Parkinsonism in natural population were different as compared with previous studies. A further study on the natural history of PD thoroughly is needed.
Collapse
Affiliation(s)
- J B Huang
- Department of Neurology, PUMC Hospital, CAMS, PUMC, Beijing 100730, China.
| | | | | |
Collapse
|
47
|
Lin SL, Liu JC, Tan JX, Chen Y, Wu JX, Xiang F. [Changes of glucocorticoid receptor in cerebral and hepatic cytosol during decompression stress injury in rats]. Space Med Med Eng (Beijing) 2000; 13:374-7. [PMID: 11894877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Objective. To observe the changes of glucocorticoid receptor (GR) in cerebral and hepatic cytosol during decompression stress injury in rats. Method. 30 rats were divided into 5 group. They were placed into the compression chamber for compression and decompression. The binding capacity of GR of cerebral and hepatic cytosol were measured by the exchange assay, using 3H dexamethasone as the ligand. Meanwhile, decompression bubbles on pericardial area were measured using Doppler ultrasonic method. Result. The binding capacity of GR of cerebral and hepatic cytosol reduced after decompression stress injury in the animals, especially cerebral cytosol (P<0.01, P<0.05). The result also showed that the binding capacity of cerebral and hepatic GR should have further decreased, if the therapeutic measure had not been used in animals suffered from decompression sickness (DCS). Conclusion. The changes of the binding capacity of GR of cerebral and hepatic cytosol were proved to be related to decompression stress injury, which might be taken as one of the indices for evaluating injury degree of DCS.
Collapse
Affiliation(s)
- S L Lin
- Naval Medical Research Institute of PLA, Shanghai, China
| | | | | | | | | | | |
Collapse
|
48
|
Niemeyer CC, Spencer-Dene B, Wu JX, Adamson ED. Preneoplastic mammary tumor markers: Cripto and Amphiregulin are overexpressed in hyperplastic stages of tumor progression in transgenic mice. Int J Cancer 1999; 81:588-91. [PMID: 10225449 DOI: 10.1002/(sici)1097-0215(19990517)81:4<588::aid-ijc14>3.0.co;2-i] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Amphiregulin (Ar) and Cripto (Cr) are autocrine growth factors for mammary cells and both have been observed to exhibit high expression in human mammary tumors, in contrast with adjacent tissues. To investigate whether Ar and Cr play roles in the progression of mammary cell proliferation to unregulated growth and tumor formation, the levels of expression were examined in transgenic mice (TGM) that over-express several different oncogenes: MMTV-Polyoma virus middle T antigen (MMTV-PyMT), MMTV-c-ErbB2 (c-neu, HER2) and MT-hTGF alpha. These transgenic mice all produce mammary tumors but with different rates of progression. The levels of Ar were induced up to 10-fold in association with hyperplasia in 2 of the TGM. Cr overexpression was consistently observed in hyperplastic mammary glands in all the animal models, decreasing in overt tumors in 2 of the TGM models. In MMTV-PyMT mammary glands, the levels of Cr expression rose 7- to 10-fold in hyperplastic tissue and 25-fold the levels in tumors compared to age-matched transgene negative mice. Ar and especially Cr thus should have potential value as markers of preneoplastic change in mammary tissue.
Collapse
MESH Headings
- Amphiregulin
- Animals
- Antigens, Viral, Tumor/genetics
- Antineoplastic Agents/analysis
- Biomarkers, Tumor/analysis
- Biomarkers, Tumor/genetics
- Cell Division
- EGF Family of Proteins
- Epidermal Growth Factor
- Female
- GPI-Linked Proteins
- Genes, erbB-2
- Glycoproteins/analysis
- Glycoproteins/genetics
- Growth Substances/analysis
- Growth Substances/genetics
- Humans
- Hyperplasia
- Intercellular Signaling Peptides and Proteins
- Mammary Glands, Animal/metabolism
- Mammary Glands, Animal/pathology
- Mammary Neoplasms, Experimental/genetics
- Mammary Neoplasms, Experimental/metabolism
- Mammary Neoplasms, Experimental/pathology
- Mammary Tumor Virus, Mouse/genetics
- Membrane Glycoproteins
- Mice
- Mice, Inbred Strains
- Mice, Transgenic
- Neoplasm Proteins/analysis
- Neoplasm Proteins/genetics
- Oncogenes
- Polyomavirus/genetics
- Precancerous Conditions/genetics
- Precancerous Conditions/metabolism
- Precancerous Conditions/pathology
- Pregnancy
- Receptor, ErbB-2/genetics
Collapse
Affiliation(s)
- C C Niemeyer
- The Burnham Institute, La Jolla Cancer Research Center, CA, USA.
| | | | | | | |
Collapse
|
49
|
Abstract
Visual field test results are crucial to the accuracy and efficiency of diagnosing blinding diseases such as glaucoma. Herein, a method of integrating self-organizing neural networks and empirical heuristics is used to perform visual field tests via a dynamic test strategy, which can lead to a reduction in the number of trials in a perimetric test. Experiments performed using clinical test records show that we are able to reduce by 20% to 30% the number of trials per test without much adverse effect on the accuracy of the tests.
Collapse
Affiliation(s)
- K W Cho
- Birkbeck College, University of London, Malet Street, London, WC1E 7HX, United Kingdom
| | | | | | | |
Collapse
|
50
|
Poinoosawmy D, Fontana L, Wu JX, Bunce CV, Hitchings RA. Frequency of asymmetric visual field defects in normal-tension and high-tension glaucoma. Ophthalmology 1998; 105:988-91. [PMID: 9627646 DOI: 10.1016/s0161-6420(98)96049-3] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE The purpose of the study was to evaluate the frequency of asymmetric visual field loss at presentation in patients with normal-tension glaucoma (NTG) and high-tension glaucoma (HTG). DESIGN A retrospective cross-sectional study design was used. PARTICIPANTS Four hundred and three NTG patients and 337 consecutive HTG patients (consecutive diagnoses between 1986 and 1996). INTERVENTION Analysis of the frequency of unilateral field loss presentations in NTG and HTG. The visual fields of fellow eyes were compared to determine the side of more severe field loss. For the NTG patients, the relationship between the side with greater field loss and corresponding intraocular pressure (IOP) was investigated. MAIN OUTCOME MEASURES Humphrey field analyzer mean defect (MD) and mean diurnal IOP. RESULTS In the NTG group, 101 (25%) patients presented with unilateral field loss. The proportion of cases with unilateral field loss decreased with increasing age of presentation (chi-square test for trend = 26.9; P < 0.0001). Sixty-four percent of the patients had unilateral field loss in the left eye. Sixty-eight percent of the cases with bilateral field loss had a higher MD in the left eye. The diurnal IOP was estimated as 0.23 +/- 0.068 mmHg (mean +/- SE) higher in the left eye (P = 0.001). In the HTG group, 104 (31%) patients presented with unilateral field loss. The proportion of cases with unilateral field loss decreased with increasing age of presentation (chi-square test for trend = 4.6; P = 0.03). Right and left eyes had an equal chance of having field loss in unilateral cases and of being the side of more advanced field damage in bilateral cases. CONCLUSIONS The frequency of cases with unilateral field loss was similar in HTG and NTG patients. Patients with unilateral field loss at presentation were more likely to be at the younger end of the age range. In the NTG population we studied, the left eye was more frequently the side of onset of field loss and 2.1 times more likely to present with a greater field defect than the right eye. In HTG patients, right and left eyes showed an equal chance of being the side of onset of field damage and the more affected side.
Collapse
Affiliation(s)
- D Poinoosawmy
- Glaucoma Unit, Moorfields Eye Hospital, London, England
| | | | | | | | | |
Collapse
|