1
|
Meng Z, Guo Y, Deng S, Xiang Q, Cao J, Zhang Y, Zhang K, Ma K, Xie S, Kang Z. Improving image quality of triple-low-protocol renal artery CT angiography with deep-learning image reconstruction: a comparative study with standard-dose single-energy and dual-energy CT with adaptive statistical iterative reconstruction. Clin Radiol 2024; 79:e651-e658. [PMID: 38433041 DOI: 10.1016/j.crad.2024.01.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 01/03/2024] [Accepted: 01/09/2024] [Indexed: 03/05/2024]
Abstract
AIM To investigate the improvement in image quality of triple-low-protocol (low radiation, low contrast medium dose, low injection speed) renal artery computed tomography (CT) angiography (RACTA) using deep-learning image reconstruction (DLIR), in comparison with standard-dose single- and dual-energy CT (DECT) using adaptive statistical iterative reconstruction-Veo (ASIR-V) algorithm. MATERIALS AND METHODS Ninety patients for RACTA were divided into different groups: standard-dose single-energy CT (S group) using ASIR-V at 60% strength (60%ASIR-V), DECT (DE group) with 60%ASIR-V including virtual monochromatic images at 40 keV (DE40 group) and 70 keV (DE70 group), and the triple-low protocol single-energy CT (L group) with DLIR at high level (DLIR-H). The effective dose (ED), contrast medium dose, injection speed, standard deviation (SD), signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) of abdominal aorta (AA), and left/right renal artery (LRA, RRA), and subjective scores were compared among the different groups. RESULTS The L group significantly reduced ED by 37.6% and 31.2%, contrast medium dose by 33.9% and 30.5%, and injection speed by 30% and 30%, respectively, compared to the S and DE groups. The L group had the lowest SD values for all arteries compared to the other groups (p<0.001). The SNR of RRA and LRA in the L group, and the CNR of all arteries in the DE40 group had highest value compared to others (p<0.05). The L group had the best comprehensive score with good consistency (p<0.05). CONCLUSIONS The triple-low protocol RACTA with DLIR-H significantly reduces the ED, contrast medium doses, and injection speed, while providing good comprehensive image quality.
Collapse
Affiliation(s)
- Z Meng
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe District, Tianhe Road, 600, Guangzhou, 510620, China
| | - Y Guo
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe District, Tianhe Road, 600, Guangzhou, 510620, China
| | - S Deng
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe District, Tianhe Road, 600, Guangzhou, 510620, China
| | - Q Xiang
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe District, Tianhe Road, 600, Guangzhou, 510620, China
| | - J Cao
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe District, Tianhe Road, 600, Guangzhou, 510620, China
| | - Y Zhang
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe District, Tianhe Road, 600, Guangzhou, 510620, China
| | - K Zhang
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe District, Tianhe Road, 600, Guangzhou, 510620, China
| | - K Ma
- CT Imaging Research Center, GE HealthCare China, Tianhe District, Huacheng Road 87, Guangzhou, 510623, China
| | - S Xie
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe District, Tianhe Road, 600, Guangzhou, 510620, China.
| | - Z Kang
- Department of Radiology, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe District, Tianhe Road, 600, Guangzhou, 510620, China.
| |
Collapse
|
2
|
Dong Y, Kang Z, Zhang Z, Zhang Y, Zhou H, Liu Y, Shuai X, Li J, Yin L, Wang X, Ma Y, Fan H, Jiang F, Lin Z, Ding C, Yun Jin K, Sarapultsev A, Li F, Zhang G, Xie T, Yin C, Cheng X, Luo S, Liu Y, Hu D. Single-cell profile reveals the landscape of cardiac immunity and identifies a cardio-protective Ym-1 hi neutrophil in myocardial ischemia-reperfusion injury. Sci Bull (Beijing) 2024; 69:949-967. [PMID: 38395651 DOI: 10.1016/j.scib.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/11/2023] [Accepted: 01/19/2024] [Indexed: 02/25/2024]
Abstract
Myocardial ischemia-reperfusion injury (MIRI) is a major hindrance to the success of cardiac reperfusion therapy. Although increased neutrophil infiltration is a hallmark of MIRI, the subtypes and alterations of neutrophils in this process remain unclear. Here, we performed single-cell sequencing of cardiac CD45+ cells isolated from the murine myocardium subjected to MIRI at six-time points. We identified diverse types of infiltrating immune cells and their dynamic changes during MIRI. Cardiac neutrophils showed the most immediate response and largest changes and featured with functionally heterogeneous subpopulations, including Ccl3hi Neu and Ym-1hi Neu, which were increased at 6 h and 1 d after reperfusion, respectively. Ym-1hi Neu selectively expressed genes with protective effects and was, therefore, identified as a novel specific type of cardiac cell in the injured heart. Further analysis indicated that neutrophils and their subtypes orchestrated subsequent immune responses in the cardiac tissues, especially instructing the response of macrophages. The abundance of Ym-1hi Neu was closely correlated with the therapeutic efficacy of MIRI when neutrophils were specifically targeted by anti-Lymphocyte antigen 6 complex locus G6D (Ly6G) or anti-Intercellular cell adhesion molecule-1 (ICAM-1) neutralizing antibodies. In addition, a neutrophil subtype with the same phenotype as Ym-1hi Neu was detected in clinical samples and correlated with prognosis. Ym-1 inhibition exacerbated myocardial injury, whereas Ym-1 supplementation significantly ameliorated injury in MIRI mice, which was attributed to the tilt of Ym-1 on the polarization of macrophages toward the repair phenotype in myocardial tissue. Overall, our findings reveal the anti-inflammatory phenotype of Ym-1hi Neu and highlight its critical role in myocardial protection during the early stages of MIRI.
Collapse
Affiliation(s)
- Yalan Dong
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zhenyu Kang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Zili Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yongqiang Zhang
- Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, China
| | - Haifeng Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yanfei Liu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing 100091, China
| | - Xinxin Shuai
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Junyi Li
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Liangqingqing Yin
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xunxun Wang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yan Ma
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Heng Fan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Feng Jiang
- Department of International Education, Tianjin University of Traditional Chinese Medicine, Tianjin 300193, China
| | - Zhihao Lin
- Institute of Neuroscience, School of Medicine, Xiamen University, Xiamen 361102, China
| | - Congzhu Ding
- Nanjing Drum Tower Hospital, Clinical College of Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing 210008, China
| | - Kim Yun Jin
- School of Traditional Chinese Medicine, Xiamen University Malaysia, Sepang 43900, Malaysia
| | - Alexey Sarapultsev
- School of Medical Biology, South Ural State University, Chelyabinsk 620049, Russia
| | - Fangfei Li
- Shum Yiu Foon Sum Bik Chuen Memorial Centre for Cancer and Inflammation Research (CCIR), School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China
| | - Ge Zhang
- Institute of Integrated Bioinfomedicine and Translational Science, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong 999077, China
| | - Tian Xie
- Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Changjun Yin
- Division of Vascular Surgery, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; Institute of Precision Medicine, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China; Institute for Cardiovascular Prevention (IPEK), Ludwig-Maximilians-University, Munich 80336, Germany
| | - Xiang Cheng
- Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Department of Cardiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Shanshan Luo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - Yue Liu
- National Clinical Research Center for Chinese Medicine Cardiology, Xiyuan Hospital, Chinese Academy of Chinese Medical Sciences, Beijing 100091, China.
| | - Desheng Hu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; Hubei Key Laboratory of Biological Targeted Therapy, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China; China-Russia Medical Research Center for Stress Immunology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| |
Collapse
|
3
|
Lan X, Wang Y, Liu B, Kang Z, Wang T. Thermally induced intermetallic Rh 1Zn 1 nanoparticles with high phase-purity for highly selective hydrogenation of acetylene. Chem Sci 2024; 15:1758-1768. [PMID: 38303947 PMCID: PMC10829007 DOI: 10.1039/d3sc05460h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 10/14/2023] [Accepted: 12/19/2023] [Indexed: 02/03/2024] Open
Abstract
Ordered M1Zn1 intermetallic phases with structurally isolated atom sites offer unique electronic and geometric structures for catalytic applications, but lack reliable industrial synthesis methods that avoid forming a disordered alloy with ill-defined composition. We developed a facile strategy for preparing well-defined M1Zn1 intermetallic nanoparticle (i-NP) catalysts from physical mixtures of monometallic M/SiO2 (M = Rh, Pd, Pt) and ZnO. The Rh1Zn1 i-NPs with structurally isolated Rh atom sites had a high intrinsic selectivity to ethylene (91%) with extremely low C4 and oligomer formation, outperforming the reported intermetallic and alloy catalysts in acetylene semihydrogenation. Further studies revealed that the M1Zn1 phases were formed in situ in a reducing atmosphere at 400 °C by a Zn atom emitting-trapping-ordering (Zn-ETO) mechanism, which ensures the high phase-purity of i-NPs. This study provides a scalable and practical solution for further exploration of Zn-based intermetallic phases and a new strategy for designing Zn-containing catalysts.
Collapse
Affiliation(s)
- Xiaocheng Lan
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University Beijing 100084 China
| | - Yu Wang
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University Beijing 100084 China
| | - Boyang Liu
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University Beijing 100084 China
| | - Zhenyu Kang
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University Beijing 100084 China
| | - Tiefeng Wang
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University Beijing 100084 China
| |
Collapse
|
4
|
Li W, Kang Z, Li S, Lin Y, Li Y, Mao Y, Zhang J, Lei T, Wang H, Su Y, Yang Y, Qiu J. 302P A multicenter, open-label, dose-escalation (DE), first-in-human study of VEGFRs and CSF1R inhibitor SYHA1813 in patients (pts) with recurrent high-grade gliomas (HGG) or advanced solid tumors. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
|
5
|
Chen ZP, Wu XF, Zheng BW, Chen QL, Yuan T, Zheng R, Chen JY, Kong WF, Wu S, Kang Z, Ren J, Yang QT. [Application of locating supratrochlear artery and supraorbital artery in combined transfrontal and intranasal endoscopic approaches]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:931-936. [PMID: 36058658 DOI: 10.3760/cma.j.cn115330-20210805-00526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the localization methods of supratrochlear artery (STA) and supraorbital artery (SOA), and to explore the clinical benefit of locating nerve via accompanying vascular localization in combined transfrontal and intranasal endoscopic approaches. Methods: From June 2019 to May 2021, 14 patients, including 11 males and 3 females, aging from 18 to 69 years old, were underwent frontal sinus surgery through the combined transfrontal and intranasal endoscopic approaches in the Department of Otorhinolaryngology Head and Neck Surgery of the Third Affiliated Hospital of Sun Yat-sen University. Before the surgery, localization of STA and SOA was determined by color doppler flow imaging (CDFI), computerized topographic angiography (CTA) and contrast enhanced magnetic resonance angiography (CE-MRA) respectively, and the distances between STA and SOA from facial midline were measured on 28 eyebrows. The position of external incision was determined according to the preoperative localization of STA and SOA. The examination time, cost and postoperative complications of the three methods were recorded. The accuracy of localization at 14 sides was verified by the surgery. GraphPad Prism 8.3 software was used for statistical analysis. Results: STA and SOA could be located by CDFI, CTA and CE-MRA. There was no significant difference in the measurement of the distance between STA and SOA from the facial midline among 3 methods (all P>0.05). Determining the position of external incision according to the localization of STA and SOA could protect both the blood vessels and accompanying nerves. No postoperative complications such as numbness of the forehead skin occurred. The measurement time of CDFI, CTA and CE-MRA was 22.50 (15.75, 30.00), 30.00 (28.00, 34.25) and 48.00 (44.00, 52.75) min (M (Q1, Q3)), respectively (all P<0.05). CDFI incurred the lowest costs and took the shortest time. Conclusions: CDFI is an efficient and economic localization method. The localization of STA and SOA facilitates the precise selection of the position of external incision, protects the accompanying nerve and reduces postoperative complications.
Collapse
Affiliation(s)
- Z P Chen
- Department of Ophthalmology and Otorhinolaryngology, the Second People's Hospital of Longgang District, Shenzhen 518112, China
| | - X F Wu
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - B W Zheng
- Department of Ultrasonography, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Q L Chen
- Department of Radiology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - T Yuan
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - R Zheng
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - J Y Chen
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - W F Kong
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - S Wu
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Z Kang
- Department of Radiology, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - J Ren
- Department of Ultrasonography, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| | - Q T Yang
- Department of Otorhinolaryngology Head and Neck Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou 510630, China
| |
Collapse
|
6
|
He SL, Li SJ, Liu M, Ouyang WX, Chen WJ, Zheng X, Jiang T, Tan YF, Kang Z, Qin XM, Yu Y. [Study on the diagnostic value of transient elastography, APRI and FIB-4 for liver fibrosis in children with non-alcoholic fatty liver disease]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:81-86. [PMID: 35152674 DOI: 10.3760/cma.j.cn501113-20210105-00007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To evaluate the diagnostic value of transient elastography, aspartate aminotransferase-to-platelet ratio index (APRI), and fibrosis index based on 4 factors (FIB-4) for liver fibrosis in children with non-alcoholic fatty liver disease (NAFLD). Methods: A retrospective study was conducted on 100 cases of nonalcoholic fatty liver disease in Hunan Children's Hospital between August 2015 to October 2020 to collect liver tissue pathological and clinical data. The receiver operating characteristic curve (ROC curve) was used to analyze the diagnostic value of liver stiffness measurement (LSM), APRI and FIB-4 in the diagnosis of different stages of liver fibrosis caused by NAFLD in children. Results: The area under the ROC curve (AUC) value of LSM, APRI and FIB-4 for diagnosing liver fibrosis (S≥1) were 0.701 [95% confidence interval (CI): 0.579 ~ 0.822, P = 0.011], 0.606 (95%CI: 0.436 ~ 0.775, P = 0.182), and 0.568 (95%CI: 0.397 ~ 0.740, P = 0.387), respectively. The best cut-off values were 6.65 kPa, 21.20, and 0.18, respectively. The AUCs value of LSM, APRI, and FIB-4 for diagnosing significant liver fibrosis (S≥ 2) were 0.660 (95% CI: 0.552 ~ 0.768, P = 0.006), 0.578 (95% CI: 0.464 ~ 0.691, P = 0.182) and 0.541 (95% CI: 0.427 ~ 0.655, P = 0.482), respectively. The best cut-off values were 7.35kpa, 24.78 and 0.22, respectively. The AUCs value of LSM, APRI and FIB-4 for the diagnosis of advanced liver fibrosis (S≥ 3) were 0.639 (95% CI: 0.446 ~ 0.832, P = 0.134), 0.613 (95% CI: 0.447 ~ 0.779, P = 0.223) and 0.587 (95% CI: 0.411 ~ 0.764, P = 0.346), respectively. The best cut-off values were 8.55kpa, 26.66 and 0.27, respectively. Conclusion: The transient elastography technique has a better diagnostic value than APRI and FIB-4 for liver fibrosis in children with NAFLD.
Collapse
Affiliation(s)
- S L He
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| | - S J Li
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| | - M Liu
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| | - W X Ouyang
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| | - W J Chen
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| | - X Zheng
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| | - T Jiang
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| | - Y F Tan
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| | - Z Kang
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| | - X M Qin
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| | - Y Yu
- Liver Disease Center of Hunan Children's Hospital, Changsha 410000, China
| |
Collapse
|
7
|
Liu B, Wang Y, Liu S, Kang Z, Lan X, Wang T. Understanding the facet effects of heterogeneous Rh 2P catalysts for styrene hydroformylation. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00974a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rh2P (111) facets are much more active than the other facets for heterogeneous hydroformylation.
Collapse
Affiliation(s)
- Boyang Liu
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Yu Wang
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Shaoxiong Liu
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Zhenyu Kang
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Xiaocheng Lan
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| | - Tiefeng Wang
- Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
| |
Collapse
|
8
|
Dong Y, Fan H, Zhang Z, Jiang F, Li M, Zhou H, Guo W, Zhang Z, Kang Z, Gui Y, Shou Z, Li J, Zhu R, Fu Y, Sarapultsev A, Wang H, Luo S, Zhang G, Hu D. Berberine ameliorates DSS-induced intestinal mucosal barrier dysfunction through microbiota-dependence and Wnt/β-catenin pathway. Int J Biol Sci 2022; 18:1381-1397. [PMID: 35280677 PMCID: PMC8898376 DOI: 10.7150/ijbs.65476] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 12/08/2021] [Indexed: 11/17/2022] Open
Abstract
Ulcerative colitis (UC) is an idiopathic, chronic inflammatory disorder of the colon, and it has become one of the world-recognized medical problems as it is recurrent and refractory. Berberine (BBR) is an effective drug for UC treatment. However, the underlying mechanism and targets remain obscure. In this study, we systematically investigated the therapeutic effect and its mechanism of BBR in ameliorating DSS-induced mouse colitis. Expectedly, the colon inflammation was significantly relieved by BBR, and microbiota depletion by antibiotic cocktail significantly reversed the therapeutic effect. Further studies showed that BBR can regulate the abundance and component of bacteria, reestablish the broken chemical and epithelial barriers. Meanwhile, BBR administration dramatically decreased ILC1 and Th17 cells, and increased Tregs as well as ILC3 in colonic tissue of DSS-induced mice, and it was able to regulate the expression of various immune factors at the mRNA level. Moreover, a proteomic study revealed that Wnt/β-catenin pathway was remarkably enhanced in colonic tissue of BBR-treated mice, and the therapeutic effect of BBR was disappeared after the intervention of Wnt pathway inhibitor FH535. These results substantially revealed that BBR restores DSS-induced colon inflammation in a microbiota-dependent manner, and BBR performs its protective roles in colon by maintaining the structure and function of the intestinal mucosal barrier, regulating the intestinal mucosal immune homeostasis and it works through the Wnt/β-catenin pathway. Importantly, these findings also provided the proof that BBR serves as a potential gut microbiota modulator and mucosal barrier protector for UC prevention and therapy.
Collapse
|
9
|
Wang H, Zhang Z, Zhou J, Han S, Kang Z, Chuang H, Fan H, Zhao H, Wang L, Ning Y, Sarapultsev A, Li WX, Li J, Lin Z, Luo S, Xiong N, Hu D. Next-Generation Sequencing and Proteomics of Cerebrospinal Fluid From COVID-19 Patients With Neurological Manifestations. Front Immunol 2021; 12:782731. [PMID: 34956212 PMCID: PMC8695435 DOI: 10.3389/fimmu.2021.782731] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Accepted: 11/23/2021] [Indexed: 01/03/2023] Open
Abstract
The SARS-CoV-2 and its variants are still hitting the world. Ever since the outbreak, neurological involvements as headache, ageusia, and anosmia in COVID-19 patients have been emphasized and reported. But the pathogenesis of these new-onset neurological manifestations in COVID-19 patients is still obscure and controversial. As difficulty always lay in the diagnosis of neurological infection, current reports to validate the presence of SARS-CoV-2 in cerebrospinal fluid (CSF) almost relied on the basic methods and warranted improvement. Here we reported a case series of 8 patients with prominent new-onset neurological manifestations, who were screened out from a patch of 304 COVID-19 confirmed patients. Next-generation sequencing (NGS) and proteomics were conducted in the simultaneously obtained CSF and serum samples of the selected patients, with three non-COVID-19 patients with matched demographic features used as the controls for proteomic analysis. SARS-CoV-2 RNA was detected in the CSF of four COVID-19 patients and was suspicious in the rest four remaining patients by NGS, but was negative in all serum samples. Proteomic analysis revealed that 185 and 59 proteins were differentially expressed in CSF and serum samples, respectively, and that only 20 proteins were shared, indicating that the proteomic changes in CSF were highly specific. Further proteomic annotation highlighted the involvement of complement system, PI3K-Akt signaling pathway, enhanced cellular interaction, and macrophages in the CSF proteomic alterations. This study, equipped with NGS and proteomics, reported a high detection rate of SARS-CoV-2 in the CSF of COVID-19 patients and the proteomic alteration of CSF, which would provide insights into understanding the pathological mechanism of SARS-CoV-2 CNS infection.
Collapse
Affiliation(s)
- Haijun Wang
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zili Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Junfen Zhou
- Department of Nuclear Medicine, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shuqing Han
- Department of Neurosurgery, Wuhan Red Cross Hospital, Wuhan, China
| | - Zhenyu Kang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haoyu Chuang
- Department of Neurosurgery, Tainan Municipal An-Nan Hospital, Tainan, Taiwan
| | - Heng Fan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Hongyang Zhao
- Department of Neurosurgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lin Wang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yunjia Ning
- Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, China
| | - Alexey Sarapultsev
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, Ekaterinburg, Russia
| | - Willis X Li
- Department of Medicine, University of California San Diego, La Jolla, CA, United States
| | - Jinghong Li
- Department of Medicine, University of California San Diego, La Jolla, CA, United States
| | - Zhicheng Lin
- Laboratory of Psychiatric Neurogenomics, McLean Hospital, Harvard Medical School, Belmont, MA, United States
| | - Shanshan Luo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Nian Xiong
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Neurology, Wuhan Red Cross Hospital, Wuhan, China
| | - Desheng Hu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
10
|
Pie N, Bettadpur SV, Tamisiea M, Krichman B, Save H, Poole S, Nagel P, Kang Z, Jacob G, Ellmer M, Fahnestock E, Landerer FW, McCullough C, Yuan D, Wiese DN. "Time Variable Earth Gravity Field Models From the First Spaceborne Laser Ranging Interferometer". J Geophys Res Solid Earth 2021; 126:e2021JB022392. [PMID: 35865454 PMCID: PMC9286545 DOI: 10.1029/2021jb022392] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 10/06/2021] [Accepted: 11/05/2021] [Indexed: 06/15/2023]
Abstract
The Gravity Recovery and Climate Experiment Follow-On (GRACE-FO), launched May 22, 2018 and collecting science data since June 2018, is extending the 15-year data record of Earth mass change established by its predecessor GRACE mission (2002-2017). The GRACE-FO satellites carry onboard a novel technology demonstration instrument for intersatellite ranging, the Laser Ranging Interferometer (LRI), in addition to the microwave interferometer (MWI) carried on GRACE. The LRI has out-performed its in-orbit performance requirements both in terms of accuracy as well as the duration of tracking. Here, we compare and validate LRI-based gravity solutions for January 2019 to September 2020 against the MWI solutions. The comparison between the two sets of gravity solutions shows great similarities in general and nearly perfect consistency at a large hydrologic basin spatial scale (100,000 km2 and above), commonly viewed as the spatial resolution established by GRACE. The comparison in the spectral domain shows differences at the higher degrees of the spectrum, with lower error in the zonal and near zonal terms for the LRI solutions. We conclude that the LRI observations can be used to recover time-varying gravity signals to at least the level of accuracy established by the MWI-based solutions. This is a promising finding, especially when considering the benefits of using the LRI over the MWI, such as the great stability of the instrument and the low occurrence of instrument reboot events.
Collapse
Affiliation(s)
- N. Pie
- Center for Space Research (CSR)The University of Texas at AustinAustinTXUSA
| | - S. V. Bettadpur
- Center for Space Research (CSR)The University of Texas at AustinAustinTXUSA
| | - M. Tamisiea
- Center for Space Research (CSR)The University of Texas at AustinAustinTXUSA
| | - B. Krichman
- Center for Space Research (CSR)The University of Texas at AustinAustinTXUSA
| | - H. Save
- Center for Space Research (CSR)The University of Texas at AustinAustinTXUSA
| | - S. Poole
- Center for Space Research (CSR)The University of Texas at AustinAustinTXUSA
| | - P. Nagel
- Center for Space Research (CSR)The University of Texas at AustinAustinTXUSA
| | - Z. Kang
- Center for Space Research (CSR)The University of Texas at AustinAustinTXUSA
| | - G. Jacob
- Center for Space Research (CSR)The University of Texas at AustinAustinTXUSA
| | - M. Ellmer
- Jet Propulsion Laboratory (JPL)California Institute of TechnologyPasadenaCAUSA
| | - E. Fahnestock
- Jet Propulsion Laboratory (JPL)California Institute of TechnologyPasadenaCAUSA
| | - F. W. Landerer
- Jet Propulsion Laboratory (JPL)California Institute of TechnologyPasadenaCAUSA
| | - C. McCullough
- Jet Propulsion Laboratory (JPL)California Institute of TechnologyPasadenaCAUSA
| | - D.‐N. Yuan
- Jet Propulsion Laboratory (JPL)California Institute of TechnologyPasadenaCAUSA
| | - D. N. Wiese
- Jet Propulsion Laboratory (JPL)California Institute of TechnologyPasadenaCAUSA
| |
Collapse
|
11
|
Choi I, Park SY, Lee SW, Kang Z, Jin YS, Kim IW. Dissolution enhancement of sorafenib tosylate by co-milling with tetradecanol post-extracted using supercritical carbon dioxide. Pharmazie 2020; 75:13-17. [PMID: 32033627 DOI: 10.1691/ph.2020.9120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Sorafenib (SOR) is an important multikinase inhibitor for the treatment of cancers. It is commercially available (Nexavar from Bayer) in the form of sorafenib tosylate (SORt) due to its very low solubility. Studies have been made to further improve the dissolution behavior of the tosylate form (SORt), which could ultimately moderate the currently high daily dose. In the present study, SORt nanoparticles (SORt-NP) were prepared through a process that combined two industrially well-accepted techniques of co-milling and supercritical extraction. SORt was co-milled with hydrophilic polymers and tetradecanol, and the tetradecanol was post-extracted using supercritical carbon dioxide. The process enabled the formation of SORt-NP without using any toxic organic solvents, and the drug/excipient ratio (1:0.38) was substantially higher than determined in other studies (1:5.4-10). The enhanced dissolution behavior of SORt-NP was possible with an optimized number of milling cycles. Combining co-milling and supercritical extraction was able to form overall porous network structures with reduced crystallite size, which accelerated the dissolution of SORt-NP. The current method could be easily extended to other poorly soluble drugs as a general approach to improve their dissolution behaviors.
Collapse
|
12
|
Li M, Guo W, Dong Y, Wang X, Dai D, Liu X, Wu Y, Li M, Zhang W, Zhou H, Zhang Z, Lin L, Kang Z, Yu T, Tian C, Qin R, Gui Y, Jiang F, Fan H, Heissmeyer V, Sarapultsev A, Wang L, Luo S, Hu D. Elevated Exhaustion Levels of NK and CD8 + T Cells as Indicators for Progression and Prognosis of COVID-19 Disease. Front Immunol 2020; 11:580237. [PMID: 33154753 PMCID: PMC7591707 DOI: 10.3389/fimmu.2020.580237] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [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: 07/05/2020] [Accepted: 09/24/2020] [Indexed: 12/30/2022] Open
Abstract
Background Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) induced Coronavirus Disease 2019 (COVID-19) has posed a global threat to public health. The immune system is crucial in defending and eliminating the virus and infected cells. However, immune dysregulation may result in the rapid progression of COVID-19. Here, we evaluated the subsets, phenotypic and functional characteristics of natural killer (NK) and T cells in patients with COVID-19 and their associations with disease severity. Methods Demographic and clinical data of COVID-19 patients enrolled in Wuhan Union Hospital from February 25 to February 27, 2020, were collected and analyzed. The phenotypic and functional characteristics of NK cells and T cells subsets in circulating blood and serum levels of cytokines were analyzed via flow cytometry. Then the LASSO logistic regression model was employed to predict risk factors for the severity of COVID-19. Results The counts and percentages of NK cells, CD4+ T cells, CD8+ T cells and NKT cells were significantly reduced in patients with severe symptoms. The cytotoxic CD3-CD56dimCD16+ cell population significantly decreased, while the CD3-CD56dimCD16- part significantly increased in severe COVID-19 patients. More importantly, elevated expression of regulatory molecules, such as CD244 and programmed death-1 (PD-1), on NK cells and T cells, as well as decreased serum cytotoxic effector molecules including perforin and granzyme A, were detected in patients with COVID-19. The serum IL-6, IL-10, and TNF-α were significantly increased in severe patients. Moreover, the CD3-CD56dimCD16- cells were screened out as an influential factor in severe cases by LASSO logistic regression. Conclusions The functional exhaustion and other subset alteration of NK and T cells may contribute to the progression and improve the prognosis of COVID-19. Surveillance of lymphocyte subsets may in the future enable early screening for signs of critical illness and understanding the pathogenesis of this disease.
Collapse
Affiliation(s)
- Mingyue Li
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Weina Guo
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yalan Dong
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaobei Wang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Die Dai
- Key Laboratory of Molecular Biophysics of the Ministry of Education, Hubei Key Laboratory of Bioinformatics and Molecular-Imaging, Department of Bioinformatics and Systems Biology, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Xingxing Liu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yiquan Wu
- HIV and AIDS Malignancy Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Mengmeng Li
- Department of Gastroenterology, Henan Provincial People's Hospital, Zhengzhou, China
| | - Wenjing Zhang
- Department of Paediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Haifeng Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zili Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Lan Lin
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhenyu Kang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ting Yu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chunxia Tian
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Renjie Qin
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Gui
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Feng Jiang
- Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Heng Fan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Vigo Heissmeyer
- Institute for Immunology, Ludwig-Maximilians-Universität München, Munich, Germany.,Institute of Molecular Immunology, Helmholtz Zentrum München, Munich, Germany
| | - Alexey Sarapultsev
- Institute of Immunology and Physiology, Ural Branch of the Russian Academy of Science, Ekaterinburg, Russia
| | - Lin Wang
- Department of Clinical Laboratory, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Shanshan Luo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Desheng Hu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
13
|
Kang Z, Luo S, Gui Y, Zhou H, Zhang Z, Tian C, Zhou Q, Wang Q, Hu Y, Fan H, Hu D. Obesity is a potential risk factor contributing to clinical manifestations of COVID-19. Int J Obes (Lond) 2020; 44:2479-2485. [PMID: 32921796 PMCID: PMC7487073 DOI: 10.1038/s41366-020-00677-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 08/02/2020] [Accepted: 09/03/2020] [Indexed: 12/17/2022]
Abstract
BACKGROUND Since December 2019, novel coronavirus (SARS-CoV-2)-induced pneumonia (COVID-19) occurred in Wuhan, and rapidly spread throughout China. COVID-19 patients demonstrated significantly different outcomes in clinic. We aimed to figure out whether obesity is a risk factor influencing the progression and prognosis of COVID-19. METHODS 95 patients with COVID-19 were divided into obesity group and non-obesity group according to their body mass index (BMI). The demographic data, clinical characteristics, laboratory examination, and chest computed tomography (CT) were collected, analyzed and compared between two groups. RESULTS Our data showed that COVID-19 patients with obesity had more underlying diseases and higher mortality rate compared to those without obesity. Furthermore, patients with obesity also demonstrated more severe pathological change in lung and higher blood lymphocytes, triglycerides, IL-6, CRP, cystatin C, alanine aminotransferase (ALT), erythrocyte sedimentation rate (ESR), which may greatly influence disease progression and poor prognosis of COVID-19. CONCLUSIONS It suggest that obesity contributes to clinical manifestations and may influence the progression and prognosis of COVID-19 and it is considered as a potential risk factor of the prognosis of COVID-19. Special medical care and appropriate intervention should be performed in obesity patients with COVID-19 during hospitalization and later clinical follow-up, especially for those with additional other comorbidities.
Collapse
Affiliation(s)
- Zhenyu Kang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Shanshan Luo
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yang Gui
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Haifeng Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Zili Zhang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chunxia Tian
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Qiaoli Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Quansheng Wang
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yu Hu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Heng Fan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Desheng Hu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China. .,Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
| |
Collapse
|
14
|
Yang J, Liu X, Liu X, Xu Q, Wang W, Wang D, Yang G, Fu Q, Kang Z, Yang Q, Liu Y, Wang Q, Ni BJ. Enhanced dark fermentative hydrogen production from waste activated sludge by combining potassium ferrate with alkaline pretreatment. Sci Total Environ 2020; 707:136105. [PMID: 31874393 DOI: 10.1016/j.scitotenv.2019.136105] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 12/10/2019] [Accepted: 12/11/2019] [Indexed: 05/16/2023]
Abstract
Alkaline pretreatment was demonstrated to be effective in the enhancement of hydrogen production. However, the sludge solubilization rate of alkaline pretreatment is still limited. This study reports a new strategy of K2FeO4 + pH 9.5 for sludge mesophilic anaerobic fermentation. Experimental results showed that the combination of K2FeO4/pH 9.5 pretreatment had a greater hydrogen yield than the individual K2FeO4 and pH 9.5. The maximum hydrogen yield was 19.2 mL per gram volatile suspended solids (VSS) under the optimal condition (0.02 g per gram total suspended solids K2FeO4 + pH 9.5). Kinetic analysis showed that the highest hydrogen production potential of 19.9 mL/g VSS was obtained in the combined reactor, which well fitted the first-order kinetic model (R2 = 0.9925). Besides, the fermentation type was mainly acetic and butyric in the combined reactor, which contributed to hydrogen production. Further analyses showed that the combined pretreatment reduced hydrogen sulfide yield, providing an environmentally friendly method to sludge treatment.
Collapse
Affiliation(s)
- Jingnan Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Xinyu Liu
- Changde City Management Center, Changde 415000, PR China
| | - Xuran Liu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Qiuxiang Xu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Wenjun Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Dongbo Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Guojing Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; College of Biological and Environmental Sciences, Zhejiang Wanli University, Ningbo 315100, PR China
| | - Qizi Fu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Zhenyu Kang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Qi Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Yiwen Liu
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Qilin Wang
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| | - Bing-Jie Ni
- Centre for Technology in Water and Wastewater, School of Civil and Environmental Engineering, University of Technology Sydney, Sydney, NSW 2007, Australia
| |
Collapse
|
15
|
Ning YJ, Kang Z, Xing J, Min YQ, Liu D, Feng K, Wang M, Deng F, Zhou Y, Hu Z, Wang H. Ebola virus mucin-like glycoprotein (Emuc) induces remarkable acute inflammation and tissue injury: evidence for Emuc pathogenicity in vivo. Protein Cell 2019; 9:389-393. [PMID: 28956289 PMCID: PMC5876185 DOI: 10.1007/s13238-017-0471-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Affiliation(s)
- Yun-Jia Ning
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Zhenyu Kang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jingjun Xing
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Yuan-Qin Min
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Dan Liu
- School of Medicine, Wuhan University of Science and Technology, Wuhan, 430081, China
| | - Kuan Feng
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Manli Wang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Fei Deng
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Yiwu Zhou
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Zhihong Hu
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China
| | - Hualin Wang
- State Key Laboratory of Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, 430071, China.
| |
Collapse
|
16
|
Kang Z, Zhu Y, Zhang QA, Dong L, Xu F, Zhang X, Guan M. Methylation and expression analysis of mismatch repair genes in extramammary Paget's disease. J Eur Acad Dermatol Venereol 2019; 33:874-879. [PMID: 30784122 DOI: 10.1111/jdv.15404] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 11/21/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Extramammary Paget's disease (EMPD) is a rare skin cancer with relative high frequencies of germline and somatic mismatch repair (MMR) genes mutations. However, the methylation and expression of these genes have not been validated in EMPD. OBJECTIVE This study aims to confirm the methylation and expression of MMR genes in EMPD. METHODS Immunohistochemical (IHC) staining detection and Methylation-specific PCR (MSP) were used to analyse MLH1, MSH2, MSH6 and PMS2 proteins' expression and promoters' methylation in 57 EMMD samples, and pyro-sequence was used to find highly methylated CpG sites in MSH2 promoter. RESULTS Immunohistochemical detection displayed reduced expression of MSH2 in 38.6% EMPD cases but normal expression of MLH1, MSH6 and PMS2 in all tumour tissues. Hypermethylation also was found in the promoter of MSH2 but not in other MMR genes. Pyrosequencing of MSH2 promoter showed CpG6 (-87) and CpG3 (-98) were the most common two methylated CpG dinucleotides. There is a significant correlation between reduced MSH2 expression and MSH2 methylation. CONCLUSION Reduced MSH2 expression and hypermethylation in this gene promoter were common genetic changes in EMPD, which expands our understanding of the role of MMR function in this skin cancer.
Collapse
Affiliation(s)
- Z Kang
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - Y Zhu
- Department of Pathology, Huashan Hospital North, Fudan University, Shanghai, P. R. China
| | - Q-A Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - L Dong
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - F Xu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - X Zhang
- Central Laboratory, Huashan Hospital, Fudan University, Shanghai, P. R. China
| | - M Guan
- Department of Laboratory Medicine, Huashan Hospital, Fudan University, Shanghai, P. R. China.,Central Laboratory, Huashan Hospital, Fudan University, Shanghai, P. R. China
| |
Collapse
|
17
|
Abstract
Objective: To estimate the choroidal thickness (CT) in healthy children aged 2-6 years old and its relation to axial length, age and gender. Methods: Cross-sectional study. CT was assessed using spectral domain optical coherence tomography (OCT) in 126 children aged 2 to 6 years. CT was measured at nine locations, including the subfovea and 1 mm and 3 mm nasal, temporal, superior and inferior to the fovea. Results: Mean subfoveal choroidal thickness (SFCT) was 331.56±62.03 μm. The choroid was thickest at the subfoveal and 1 mm temporal area, and thinner nasally compared to temporally, superiorly and inferiorly. No statistical significance of SFCT between male and female was noted. Stepwise multiple regression analysis revealed that axial length and age were associated significantly with SFCT (P=0.00), while there was no detectable effect of sex on SFCT (P=0.94). Conclusions: Choroidal thickness was negatively correlated to axial length and positively correlated to age in preschool children. The development of the choroid in early childhood offset the effect of the expansion of eyes. Gender played a minor role in the choroidal development in early childhood. (Chin J Ophthalmol, 2019, 55:111-114).
Collapse
Affiliation(s)
- Z Kang
- Xiamen Pediatric Hospital Affiliated to Fudan University, Xiamen Children's Hospital, Xiamen 361000, China
| | | |
Collapse
|
18
|
Miao J, Wei X, Kang Z, Gao Y, Yu X. MYOFIBRILLAR AND DISTAL MYOPATHIES. Neuromuscul Disord 2018. [DOI: 10.1016/j.nmd.2018.06.300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
19
|
Han J, Ji Y, Wang H, Cao D, Kang Z, Zhu J. Hydrocephalus combined with acute communicating syringomyelia resulting from aneurysmal subarachnoid hemorrhage: A case report. Rev Neurol (Paris) 2018; 174:175-177. [DOI: 10.1016/j.neurol.2017.06.027] [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] [Received: 12/20/2016] [Revised: 05/27/2017] [Accepted: 06/15/2017] [Indexed: 10/18/2022]
|
20
|
Wang B, Wang N, Song N, Wang W, Wang J, Wang X, Kang Z. Overexpression of AtPAD4 in transgenic Brachypodium distachyon enhances resistance to Puccinia brachypodii. Plant Biol (Stuttg) 2017; 19:868-874. [PMID: 28836326 DOI: 10.1111/plb.12616] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 08/21/2017] [Indexed: 06/07/2023]
Abstract
Brachypodium distachyon (L.) has recently emerged as a model for temperate grasses for investigating the molecular basis of plant-pathogen interactions. Phytoalexin deficient 4 (PAD4) plays a regulatory role in mediating expression of genes involved in plant defence. In this research, we generated transgenic B. distachyon plants constitutively overexpressing AtPAD4. Two transgenic B. distachyon lines were verified using PCR and GUS phenotype. Constitutive expression of AtPAD4 in B. distachyon enhanced resistance to Puccinia brachypodii. P. brachypodii generated less urediniospores on transgenic than on wild-type plants. AtPAD4 overexpression enhanced salicylic acid (SA) levels in B. distachyon-infected tissues. qRT-PCR showed that expression of pathogenesis-related 1 (PR1) and other defence-related genes were up-regulated in transformed B. distachyon following infection with P. brachypodii. Our results indicate that AtPAD4 overexpression in B. distachyon plants led to SA accumulation and induced PR gene expression that reduced the rate of colonisation by P. brachypodii.
Collapse
Affiliation(s)
- B Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Sciences, Northwest A & F University, Yangling, Shaanxi, China
| | - N Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi, China
| | - N Song
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi, China
| | - W Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi, China
| | - J Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi, China
| | - X Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi, China
| | - Z Kang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A & F University, Yangling, Shaanxi, China
| |
Collapse
|
21
|
Affiliation(s)
- Z Kang
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - X D Min
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z Y Feng
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - L Wang
- Department of Radiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| |
Collapse
|
22
|
Yew KL, Kang Z, Anum A. Late presentation of ALCAPA syndrome in an elderly Asian lady. Med J Malaysia 2016; 71:217-219. [PMID: 27770127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Coronary artery anomalies are often discovered incidentally during cardiac catheterization or computed tomography coronary angiography and may involve the affected coronary artery origin and its course. Coronary artery anomalies are associated with congenital heart disease. The affected coronary arteries may have an unusual high take off origin, origin from contralateral or non-coronary sinus, origin from the pulmonary artery, single coronary system or coronary artery fistula.
Collapse
Affiliation(s)
- K L Yew
- Sarawak Heart Center, Cardiology Department, Kota Samarahan, 94300 Sarawak, Malaysia.
| | - Z Kang
- Sarawak Heart Center, Cardiology Department, Kota Samarahan, 94300 Sarawak, Malaysia
| | - A Anum
- Sarawak Heart Center, Cardiology Department, Kota Samarahan, 94300 Sarawak, Malaysia
| |
Collapse
|
23
|
Grelewicz Z, Lee B, Cutright D, Kang Z, Gopalakrishnan M, Sathiaseelan V, Zhang H. SU-F-T-75: Dosimetry Considerations in the Use of Hanging-Eye Block for Lesions of the Conjunctiva. Med Phys 2016. [DOI: 10.1118/1.4956211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
24
|
Lee B, Grelewicz Z, Kang Z, Cutright D, Gopalakrishnan M, Sathiaseelan V, Zhang H. SU-F-T-08: Brachytherapy Film Dosimetry in a Water Phantom for a Ring and Tandem HDR Applicator. Med Phys 2016. [DOI: 10.1118/1.4956142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
25
|
Zhang X, Feng H, Feng C, Xu H, Huang X, Wang Q, Duan X, Wang X, Wei G, Huang L, Kang Z. Isolation and characterisation of cDNA encoding a wheat heavy metal-associated isoprenylated protein involved in stress responses. Plant Biol (Stuttg) 2015; 17:1176-86. [PMID: 25951496 DOI: 10.1111/plb.12344] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Accepted: 05/01/2015] [Indexed: 05/03/2023]
Abstract
In cells, metallochaperones are important proteins that safely transport metal ions. Heavy metal-associated isoprenylated plant proteins (HIPPs) are metallochaperones that contain a metal binding domain and a CaaX isoprenylation motif at the carboxy-terminal end. To investigate the roles of wheat heavy metal-associated isoprenylated plant protein (TaHIPP) genes in plant development and in stress responses, we isolated cDNA encoding the wheat TaHIPP1 gene, which contains a heavy metal-associated domain, nuclear localisation signals and an isoprenylation motif (CaaX motif). Quantitative real-time PCR analysis indicated that the TaHIPP1 gene was differentially expressed under biotic and abiotic stresses. Specifically, TaHIPP1 expression was up-regulated by ABA exposure or wounding. Additionally, TaHIPP1 over-expression in yeast (Schizosaccharomyces pombe) significantly increased the cell growth rate under Cu(2+) and high salinity stresses. The nuclear localisation of the protein was confirmed with confocal laser scanning microscopy of epidermal onion cells after particle bombardment with chimeric TaHIPP1-GFP constructs. In addition, TaHIPP1 was shown to enhance the susceptibility of wheat to Pst as determined by virus-induced gene silencing. These data indicate that TaHIPP1 is an important component in defence signalling pathways and may play a crucial role in the defence response of wheat to biotic and certain abiotic stresses.
Collapse
Affiliation(s)
- X Zhang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Science, Northwest A&F University, Yangling, Shaanxi, China
| | - H Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
| | - C Feng
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Science, Northwest A&F University, Yangling, Shaanxi, China
| | - H Xu
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Science, Northwest A&F University, Yangling, Shaanxi, China
| | - X Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
| | - Q Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Science, Northwest A&F University, Yangling, Shaanxi, China
| | - X Duan
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Life Science, Northwest A&F University, Yangling, Shaanxi, China
| | - X Wang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
| | - G Wei
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
| | - L Huang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
| | - Z Kang
- State Key Laboratory of Crop Stress Biology for Arid Areas and College of Plant Protection, Northwest A&F University, Yangling, Shaanxi, China
| |
Collapse
|
26
|
Hu M, Sheng J, Kang Z, Zou L, Guo J, Sun P. Magnetic resonance imaging and dual energy X-ray absorptiometry of the lumbar spine in professional wrestlers and untrained men. J Sports Med Phys Fitness 2014; 54:505-510. [PMID: 25034552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The aim of this study was to examine the relation between bone marrow adipose tissue (BMAT) and bone mineral density (BMD) of lumbar spine in male professional wrestlers and healthy untrained men. A total of 14 wrestlers (22.9±3.4 years) and 11 controls (24.4±1.6 years) were studied cross-sectionally. Body composition and BMD were measured by dual-energy X-ray absorptiometry. Magnetic resonance imaging of the lumbar spine was examined in a sagittal T1-weighted (T1-w) spin-echo (SE) sequence. The averaged bone marrow signal intensity (SI) of L2-L4 was related to the signal of an adjacent nondegenerative disk. Mean SI of T1-w SE in wrestlers was lower than controls (P=0.001), indicating L2-L4 BMAT in wrestlers was lower compared to controls. L2-L4 BMD in wrestlers was higher than controls (P<0.001). In the total subject population, L2-L4 BMD was inversely correlated with mean SI of T1-w SE (r=-0.62, P=0.001). This association remained strong after adjusting for body mass and whole lean mass, but became weaker after adjusting for whole body or trunk fat percentage. The inverse relationship between BMAT and BMD was confirmed in this relatively small subject sample with narrow age range, which implies that exercise training is an important determinant of this association.
Collapse
Affiliation(s)
- M Hu
- Department of Sport and Health Sciences, Guangzhou Institute of Physical EducationGuangzhou, China -
| | | | | | | | | | | |
Collapse
|
27
|
Kang Z, Zhu H, Luan H, Han F, Jiang W. Curculigoside A induces angiogenesis through VCAM-1/Egr-3/CREB/VEGF signaling pathway. Neuroscience 2014; 267:232-40. [DOI: 10.1016/j.neuroscience.2014.02.050] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 02/25/2014] [Accepted: 02/27/2014] [Indexed: 12/25/2022]
|
28
|
Miao Y, Kang Z, Xu F, Qi S, Sheng Y, Han Y, Hu R, Guo X, Yang Q. Association analysis of the IL2RA gene with alopecia areata in a Chinese population. Dermatology 2013; 227:299-304. [PMID: 24280705 DOI: 10.1159/000351555] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 04/12/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Interleukin-2 receptor subunit alpha (IL2RA) is highly expressed on CD4+CD25+ regulatory T cells and is important for immune homeostasis and the suppression of autoimmune responses. It has been suggested that the single nucleotide polymorphism in IL2RA may affect the pathogenesis of alopecia areata (AA). OBJECTIVE Our aim was to investigate the link between IL2RA polymorphism and AA in a Chinese population. METHODS We examined 427 patients and 430 controls in this study. The rs3118470 polymorphism was evaluated using high-resolution melting analysis and direct sequencing. RESULTS The prevalence of the C/C, T/C and T/T genotypes was 16.2, 48.2 and 35.6%, respectively. The genotype distribution and allele frequencies were significantly different between AA and control subjects (p < 0.0001). The C allele frequency was significantly higher in the AA group (p < 0.0001), and the frequencies of C allele and C/C genotype were higher in the patients with family history (p = 0.034; p < 0.0001). CONCLUSIONS The rs3118470 single nucleotide polymorphism of IL2RA may be a genetic marker to assess the risk of AA in a Chinese population.
Collapse
Affiliation(s)
- Y Miao
- Department of Dermatology, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Bacchus I, Gopalakrishnan M, Kang Z. SU-E-T-594: Software Application for Comparison and Verification of Radiotherapy Treatment Plans. Med Phys 2013. [DOI: 10.1118/1.4815022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
30
|
Wang S, Zhu H, Lu C, Kang Z, Luo Y, Feng L, Lu X. Fermented milk supplemented with probiotics and prebiotics can effectively alter the intestinal microbiota and immunity of host animals. J Dairy Sci 2013; 95:4813-4822. [PMID: 22916885 DOI: 10.3168/jds.2012-5426] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2012] [Accepted: 05/26/2012] [Indexed: 01/03/2023]
Abstract
Fermented milk supplemented with 2 probiotic strains, Bifidobacterium lactis Bi-07 and Lactobacillus acidophilus NCFM, and a prebiotic, isomaltooligosaccharide, was orally administered to 100 healthy adults at 480 g/d for 2 wk in a randomized controlled trial. The fecal bacterial compositions of these subjects were examined by culture before and after the intervention. The same fermented milk was also orally fed to BALB/c mice, and immune as well as fecal bacteria analyses were conducted using the same culturing methods. After the intervention, increases in fecal bifidobacteria and lactobacilli were observed among the subjects compared with the subjects in the control group. In contrast, after the intervention, fecal enterobacilli were significantly decreased in the test group compared with the control group. The same effects on the composition of the intestinal microbiota were observed in mice. Furthermore, the tested mice were found to have significantly increased delayed-type hypersensitivity, plaque-forming cells, and half-hemolysis values after the intervention with the fermented milk. In summary, the synbiotic fermented milk containing probiotics and a prebiotic may contribute to improve intestinal health and may have a positive effect on the humoral and cell-mediated immunity of host animals.
Collapse
Affiliation(s)
- S Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Box 112, Beijing, 10083, P. R. China; Shijiazhuang Junlebao Dairy Co. Ltd., Shijiazhuang, Hebei, 050221, P. R. China
| | - H Zhu
- Shijiazhuang Junlebao Dairy Co. Ltd., Shijiazhuang, Hebei, 050221, P. R. China.
| | - C Lu
- Shijiazhuang Junlebao Dairy Co. Ltd., Shijiazhuang, Hebei, 050221, P. R. China
| | - Z Kang
- Shijiazhuang Junlebao Dairy Co. Ltd., Shijiazhuang, Hebei, 050221, P. R. China
| | - Y Luo
- College of Food Science and Nutritional Engineering, China Agricultural University, Box 112, Beijing, 10083, P. R. China
| | - L Feng
- Shijiazhuang Junlebao Dairy Co. Ltd., Shijiazhuang, Hebei, 050221, P. R. China
| | - X Lu
- Shijiazhuang Junlebao Dairy Co. Ltd., Shijiazhuang, Hebei, 050221, P. R. China
| |
Collapse
|
31
|
Bi B, Xiao X, Zhang H, Gao J, Tao M, Niu H, Wang Y, Wang Q, Chen C, Sun N, Li K, Fu J, Gan Z, Sang W, Zhang G, Yang L, Tian T, Li Q, Yang Q, Sun L, Li Y, Rong H, Guan C, Zhao X, Ye D, Zhang Y, Ma Z, Li H, He K, Chen J, Cai Y, Zhou C, Luo Y, Wang S, Gao S, Liu J, Guo L, Guan J, Kang Z, Di D, Li Y, Shi S, Li Y, Chen Y, Flint J, Kendler K, Liu Y. A comparison of the clinical characteristics of women with recurrent major depression with and without suicidal symptomatology. Psychol Med 2012; 42:2591-2598. [PMID: 22716960 PMCID: PMC3488812 DOI: 10.1017/s003329171200058x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2011] [Revised: 03/02/2012] [Accepted: 03/06/2012] [Indexed: 11/22/2022]
Abstract
BACKGROUND The relationship between recurrent major depression (MD) in women and suicidality is complex. We investigated the extent to which patients who suffered with various forms of suicidal symptomatology can be distinguished from those subjects without such symptoms. METHOD We examined the clinical features of the worst episode in 1970 Han Chinese women with recurrent DSM-IV MD between the ages of 30 and 60 years from across China. Student's t tests, and logistic and multiple logistic regression models were used to determine the association between suicidality and other clinical features of MD. RESULTS Suicidal symptomatology is significantly associated with a more severe form of MD, as indexed by both the number of episodes and number of MD symptoms. Patients reporting suicidal thoughts, plans or attempts experienced a significantly greater number of stressful life events. The depressive symptom most strongly associated with lifetime suicide attempt was feelings of worthlessness (odds ratio 4.25, 95% confidence interval 2.9-6.3). Excessive guilt, diminished concentration and impaired decision-making were also significantly associated with a suicide attempt. CONCLUSIONS This study contributes to the existing literature on risk factors for suicidal symptomatology in depressed women. Identifying specific depressive symptoms and co-morbid psychiatric disorders may help improve the clinical assessment of suicide risk in depressed patients. These findings could be helpful in identifying those who need more intense treatment strategies in order to prevent suicide.
Collapse
Affiliation(s)
- B. Bi
- The First Hospital of China Medical University, Shenyang, People's Republic of China (PRC)
| | - X. Xiao
- The First Hospital of China Medical University, Shenyang, People's Republic of China (PRC)
| | - H. Zhang
- The First Hospital of China Medical University, Shenyang, People's Republic of China (PRC)
| | - J. Gao
- ZheJiang Traditional Chinese Medical Hospital, Hangzhou, PRC
| | - M. Tao
- Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, PRC
| | - H. Niu
- No. 1 Hospital of Zhengzhou University, Zhengzhou, PRC
| | - Y. Wang
- Shandong Mental Health Center, Shan Dong, PRC
| | - Q. Wang
- Beijing Anding Hospital, Capital Medical University, Beijing, PRC
| | - C. Chen
- No. 1 Hospital of Medical College of Xian Jiaotong University, Xian, Shaan Xi, PRC
| | - N. Sun
- No. 1 Hospital of Shanxi Medical University, Shanxi, PRC
| | - K. Li
- Mental Hospital of Jiangxi Province, Jiangxi, PRC
| | - J. Fu
- ShengJing Hospital of China Medical University, Liaoning, PRC
| | - Z. Gan
- No. 3 Affiliated Hospital of Zhongshan University, Guangdong, PRC
| | - W. Sang
- Hebei Mental Health Center, Hebei, PRC
| | - G. Zhang
- No. 4 Affiliated Hospital of Jiangsu University, Jiang Su, PRC
| | - L. Yang
- Jilin Brain Hospital, Jilin, PRC
| | - T. Tian
- Tianjin Anding Hospital, Tianjin, PRC
| | - Q. Li
- No. 1 Mental Health Center Affiliated Harbin Medical University, Heilongjiang, PRC
| | - Q. Yang
- Chongqing Mental Health Center, Chongqing, PRC
| | - L. Sun
- Psychiatric Hospital of Henan Province, Henan, PRC
| | - Ying Li
- Dalian No. 7 People's Hospital and Dalian Mental Health Center, Dalian, PRC
| | - H. Rong
- Shenzhen Kangning Hospital, Shenzhen, PRC
| | - C. Guan
- Nanjing Brain Hospital, Jiang Su, PRC
| | - X. Zhao
- The First Hospital of Hebei Medical University, Shijiazhuang, PRC
| | - D. Ye
- Sichuan Mental Health Center, Sichuan, PRC
| | - Y. Zhang
- Lanzhou University Second Hospital, Second Clinical Medical College of Lanzhou University, Gansu Province, PRC
| | - Z. Ma
- No. 1 Hospital of Chongqing Medical University, Chongqing, PRC
| | - H. Li
- Mental Health Center of West China Hospital of Sichuan University, Si Chuan, PRC
| | - K. He
- Shanghai Tongji University Affiliated Tongji Hospital, Shanghai, PRC
| | - J. Chen
- Shanghai Jiao Tong University School of Medicine Affiliated Shanghai Mental Health Center, Shanghai, PRC
| | - Y. Cai
- Fudan University Affiliated Huashan Hospital, Shanghai, PRC
| | - C. Zhou
- Wuhan Mental Health Center, Hubei, PRC
| | - Y. Luo
- No. 3 Hospital of Heilongjiang Province, Heilongjiang, PRC
| | - S. Wang
- The First Affiliated Hospital of Jinan University, Guangzhou, PRC
| | - S. Gao
- Ningbo Kangning Hospital, Zhejiang, PRC
| | - J. Liu
- Suzhou Guangji Hospital, Jiangsu, PRC
| | - L. Guo
- The Fourth Military Medical University Affiliated Xijing Hospital, Shaanxi, PRC
| | - J. Guan
- Guangzhou Brain Hospital/Guangzhou Psychiatric Hospital, Guangzhou, PRC
| | - Z. Kang
- No. 4 People's Hospital of Liaocheng, Shandong, PRC
| | - D. Di
- Mental Health Institute of Jining Medical College, Shandong, PRC
| | - Yajuan Li
- Xian Mental Health Center, Xian, Shanxi, PRC
| | - S. Shi
- Fudan University Affiliated Huashan Hospital, Shanghai, PRC
| | - Yihan Li
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - Y. Chen
- Clinical Trial Service Unit, Richard Doll Building, Oxford, UK
| | - J. Flint
- Wellcome Trust Centre for Human Genetics, Oxford, UK
| | - K. Kendler
- Virginia Commonwealth University (VCU), Department of Psychiatry, Virginia Institute for Psychiatric and Behavioral Genetics, Richmond, VA, USA
| | - Y. Liu
- The First Hospital of China Medical University, Shenyang, People's Republic of China (PRC)
| |
Collapse
|
32
|
Chen Y, Ouyang DS, Kang Z, Yang GP, Tan ZR, Zhou G, Yan J. Effect of a traditional Chinese medicine Liu Wei Di Huang Wan on the activities of CYP2C19, CYP2D6 and CYP3A4 in healthy volunteers. Xenobiotica 2011; 42:596-602. [PMID: 22208477 DOI: 10.3109/00498254.2011.644596] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Liu Wei Di Huang Wan (LDW), a well-known traditional Chinese medicine, is widely used for the treatment of various diseases in China. This study was designed to investigate the potential herb-drug interactions of LDW in healthy volunteers and attempted to ascertain whether the interaction might be affected by genotypes. We assessed the effect of LDW on the activities of CYP2C19, CYP2D6 and CYP3A4 in 12 Chinese healthy subjects in a single-center, controlled, non-blinded, two-way crossover clinical trial. The subject pool consisted of six extensive metabolizers with CYP2C19*1/*1 and six poor metabolizers with CYP2C19*2/*2. Placebo or 4.8 g LDW (12 pills, 0.2 g/pill, twice daily) was given to each participant for 14 continuous days with a wash-out period of 2 weeks after an oral administration of 30 mg omeprazole, 30 mg dextromethorphan hydrobromide and 7.5 mg midazolam. The activities of CYP2C19, CYP2D6 and CYP3A4 were ascertained by their respective plasma or urinary metabolic ratios on day 14 post-treatment. There is no difference in the activities of the three tested enzymes before or after a 14-day administration of LDW. LDW had no effect on the pharmacokinetic parameters of the substrates and their metabolites. A 14-day administration of LDW did not affect the activities of CYP2C19, CYP2D6 and CYP3A4. LDW is unlikely to cause pharmacokinetic interaction when it is combined with other medications predominantly metabolized by these enzymes.
Collapse
Affiliation(s)
- Y Chen
- Institute of Clinical Pharmacology, Central South University, Changsha, Hunan, China
| | | | | | | | | | | | | |
Collapse
|
33
|
Shiloh R, Rakhra S, Evans J, Helenowski I, Kang Z, Mulcahy M, Small W, Hayes J. Retrospective Review of the Dosimetric and Treatment-Related Determinants of Toxicity in Patients with Esophageal Cancer Treated with Concurrent Chemoradiation with or without Surgery. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
34
|
Han LY, Wu QH, Jiao ML, Hao YH, Liang LB, Gao LJ, Legge DG, Quan H, Zhao MM, Ning N, Kang Z, Sun H. Associations between single-nucleotide polymorphisms (+45T>G, +276G>T, -11377C>G, -11391G>A) of adiponectin gene and type 2 diabetes mellitus: a systematic review and meta-analysis. Diabetologia 2011; 54:2303-14. [PMID: 21638131 DOI: 10.1007/s00125-011-2202-9] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [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: 12/21/2010] [Accepted: 04/27/2011] [Indexed: 02/07/2023]
Abstract
AIMS/HYPOTHESIS The associations between adiponectin polymorphisms and type 2 diabetes have been studied widely; however, results are inconsistent. METHODS We searched electronic literature databases and reference lists of relevant articles. A fixed or random effects model was used on the basis of heterogeneity. Sub-group and meta-regression analyses were conducted to explore the sources of heterogeneity. RESULTS There were no statistically significant associations between +45T>G (rs2241766), +276G>T (rs1501299), -11391G>A (rs17300539) and type 2 diabetes risk. However, for -11377C>G (rs266729), the pooled OR (95% CI) for G vs C allele was 1.07 (1.03-1.11, p = 0.001). Subgroup analysis by study design revealed that -11377C>G (rs266729) dominant model (CG+GG vs CC, p = 0.0008) and G vs C allele (p = 0.0004) might be associated with type 2 diabetes risk in population-based case-control studies. After stratification by ethnicity, we found that -11377C>G (rs266729) dominant model (CG+GG vs CC, p = 0.004) and G vs C allele (p = 0.001) might be associated with type 2 diabetes risk in white individuals. In individuals with a family history of diabetes, the presence of -11391G>A (rs17300539) dominant model (GA+AA vs GG) and A vs G allele might be associated with increased risk of type 2 diabetes. CONCLUSIONS/INTERPRETATION The presence of +45T>G (rs2241766), +276G>T (rs1501299) and -11391G>A (rs17300539) do not appear to influence the development of type 2 diabetes. However, G vs C allele of -11377C>G (rs266729) might be a risk factor for type 2 diabetes.
Collapse
Affiliation(s)
- L Y Han
- Department of Social Medicine, School of Public Health, Harbin Medical University, 157 Baojian Road, Harbin, Heilongjiang 150081, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
35
|
Wang J, Xiao Y, Lu Y, Kang Z, Zhang M, Liu Y, Liang J, Zhang M, Li T. Pharmacokinetics of antofloxacin hydrochloride in healthy male subjects after multiple intravenous dose administration. Xenobiotica 2011; 41:561-6. [PMID: 21446836 DOI: 10.3109/00498254.2011.565820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The purpose of the study was to evaluate pharmacokinetic characteristics of antofloxacin hydrochloride, a new fluoroquinolone antibiotic, during a multiple, intravenous dosing regimen. Twelve healthy, Chinese male volunteer subjects were each given 300 mg of antofloxacin by intravenous infusion once daily for 7 days. Blood and urine samples were taken at designated time points for analysis of antofloxacin concentration by high-performance liquid chromatography (HPLC). Safety and tolerability were assessed by evaluation of subject complaints, vital signs, electrocardiograms, electroencephalograms, clinical chemistry parameters, haematology and urinalysis and prothrombin time. The serum steady concentration of antofloxacin was obtained in 96 h after the administration of a daily intravenous dose of 300 mg of the drug. In the present study, the following pharmacokinetic parameters after 7 days of treatment with antofloxacin were determined to be: C(max) 3.81 ± 0.66 mg/L, C(min) 0.85 ± 0.19 mg/L, AUC(0-24) 60.51 ± 8.30 mg/L·h, C(av) 2.52 ± 0.35 mg/L, PTF 87.45 ± 3.37%, t(1/2)β 20.34 ± 1.88 h. The C(max) and AUC(0-24) after 7-day treatment were both higher than after the first dose (by 43% and 110%, respectively). The cumulative urinary elimination of antofloxacin within 96 h after the last dose was about 56%. During the study, there were neither subject complaints nor significant adverse clinical findings. Antofloxacin, administered intravenously as a single, daily 300 mg dose for 7 days, demonstrated favourable pharmacokinetic characteristics and tolerability. The results of this study indicate that antofloxacin hydrochloride is suitable for further clinical study.
Collapse
Affiliation(s)
- J Wang
- Institute of Clinical Pharmacology, First Hospital, Peking University, Haidian District, Beijing, China
| | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Mayeenuddin LH, Yu Y, Kang Z, Helman LJ, Cao L. Insulin-like growth factor 1 receptor antibody induces rhabdomyosarcoma cell death via a process involving AKT and Bcl-x(L). Oncogene 2010; 29:6367-77. [PMID: 20818434 DOI: 10.1038/onc.2010.364] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Insulin-like growth factors (IGFs) and their receptor, IGF-1 receptor (IGF1R), have important roles in growth, development, stress response, aging and cancer. There are many agents that inhibit IGF1R in oncology clinical development, and in some cases, they have been associated with rapid tumor regression. However, it is not clear by which process these targeted agents induce cancer cell death and how to predict such tumor responses. Here, we showed that IGF1R antibody led to rapid cell death and tumor regression in some rhabdomyosarcoma (RMS) cells. Mechanistic analysis revealed a rapid onset of mitochondrial-dependent apoptosis, including mitochondrial depolarization, cytochrome C release and the activation of specific caspases. The antibody sensitive cells had greater dependence on AKT for maintaining downstream signaling and the expression of a constitutively active AKT, which restored AKT-signaling in these cells, inhibited anti-IGF1R induced cell death. Further analysis showed IGF1R antibody-induced hypophosphorylation of BAD and activation of downstream BAX. Interestingly, the examination of RMS cell lines and tumors revealed an inverse correlation between elevated IGF1R and Bcl-2 level (P=0.033), with the sensitive cells lacking Bcl-2 expression. The overexpression of BAD specific target, Bcl-x(L), conferred resistance, whereas Bcl-x(L) knockdown sensitized cells lacking Bcl-2 to anti-IGF1R-induced cell death. We propose that RMS pathogenesis involves increased IGF1R expression that enhances AKT and Bcl-x(L)-mediated cell survival, and the blockage of IGF1R results in inhibition of survival signal from Bcl-x(L) and cell death in the sensitive Bcl-2 negative cells.
Collapse
Affiliation(s)
- L H Mayeenuddin
- Genetics Branch, Center for Cancer Research, National Cancer Institute, Bethesda, MD 20892-4265, USA
| | | | | | | | | |
Collapse
|
37
|
Wang J, Xiao Y, Lu Y, Kang Z, Zhang M, Liu Y, Liang J, Zhang M, Li T. Pharmacokinetics of antofloxacin hydrochloride, a novel fluoroquinolone, after single-dose intravenous administration in healthy Chinese male volunteers. Xenobiotica 2010; 40:344-9. [DOI: 10.3109/00498251003649798] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
38
|
Diavolitsis V, Rademaker A, Boyle J, Kang Z, Kiel K, Mulcahy M, Small W. Change in Creatinine Clearance Over Time Following Upper Abdominal Irradiation: A Dose Volume Histogram Multivariate Analysis. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
39
|
Kang Z, Bédécarrats GY, Zadworny D. Expression patterns of the prolactin receptor gene in chicken lymphoid tissues during embryogenesis and posthatch period. Poult Sci 2007; 86:2404-12. [PMID: 17954592 DOI: 10.3382/ps.2007-00235] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Prolactin (PRL) is a pituitary hormone with multiple homeostatic roles among vertebrates. Although it has mainly been studied in relation to its role during the initiation and maintenance of incubation behavior in avian species, it has also been shown to act on the immune system. In this study, levels of PRL receptor (PRLR) mRNA were quantified by real-time PCR, and tissue expression was localized by in situ hybridization in primary and secondary lymphoid organs. Prolactin receptor was shown to be expressed in the bursa follicles, thymus lobules, and splenic pulp at all stages of development examined. Levels of PRLR expression were consistently higher in the bursa of Fabricius when compared with other lymphoid organs, suggesting that PRL acts primarily on bursal development. Furthermore, levels of PRLR mRNA appeared to fluctuate during embryogenesis, with a significant increase observed at embryonic day 19 in the bursa, at 7 d of age in the thymus, and on hatching day in the spleen. Thus, PRL might play an important role during the development of the immune system in chickens.
Collapse
Affiliation(s)
- Z Kang
- Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada, N1G 2W1
| | | | | |
Collapse
|
40
|
Kang Z, Li H, Li G, Yin D. Reaction of pyridoxamine with malondialdehyde: Mechanism of inhibition of formation of advanced lipoxidation end-products. Amino Acids 2005; 30:55-61. [PMID: 15990947 DOI: 10.1007/s00726-005-0209-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [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: 01/15/2005] [Accepted: 03/21/2005] [Indexed: 12/31/2022]
Abstract
Advanced glycation end products (AGEs) and advanced lipoxidation end products (ALEs) are implicated in many age-related chronic diseases and in protein aging. Recent studies suggest that pyridoxamine (PM) is an efficient AGEs/ALEs inhibitor in various biological systems. Because malondialdehyde (MDA) is an important intermediate in the formation of ALEs during lipid peroxidation, the purpose of this study is to determine whether PM can trap MDA directly and thereby prevent ALEs formation. PM reacted readily with MDA under physiological conditions. Within 6 h, a 1-pyridoxamino-propenal adduct derived from reaction of equimolar PM + MDA was detected. A 1-amino-3-iminopropene complex and a dihydropyridine-pyridinium complex were also identified after 7 d incubation. PM also greatly inhibited the lipofuscin-like fluorescence formation induced by MDA reaction with bovine serum albumin (BSA). Our results showed clearly that PM inhibited the formation of ALEs by trapping MDA directly under physiological condition, and provide insight into the mechanism of action of PM in protecting proteins against carbonyl stress.
Collapse
Affiliation(s)
- Z Kang
- Aging Biochemistry Lab, College of Life Sciences, Hunan Normal University, Changsha, Hunan, Peoples' Republic of China
| | | | | | | |
Collapse
|
41
|
Yang H, Makeyev EV, Kang Z, Ji S, Bamford DH, van Dijk AA. Cloning and sequence analysis of dsRNA segments 5, 6 and 7 of a novel non-group A, B, C adult rotavirus that caused an outbreak of gastroenteritis in China. Virus Res 2004; 106:15-26. [PMID: 15522443 DOI: 10.1016/j.virusres.2004.05.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2004] [Revised: 05/28/2004] [Accepted: 05/28/2004] [Indexed: 10/26/2022]
Abstract
A diarrhoeal outbreak among adults in China was caused by a new rotavirus, termed ADRV-N, that does not react with antisera directed against group A, B or C rotaviruses [Zhonghua Liu Xing Bing Xue Za Zhi (Chin. Epidemiol.) 19 (1998) 336]. ADRV-N can be propagated in cell cultures [Zhonghua Yi Xue Za Zhi (Natl. Med. J. China) 82 (2002) 14]. We present the complete sequences for ADRV-N genome segments 5 and 6, and a full ORF sequence of genome segment 7. The deduced amino acid sequences suggest that these segments encode NSP1, VP6 and NSP3, respectively. These three ADRV-N genome segments have a unique -ACCCC-3' terminal sequence. The 5'-GG- terminus of segments 5 and 6 is the same as that of other rotaviruses. The amino acid similarity between VP6 and NSP3 of ADRV-N and the cognate sequences of their closest counterpart, group B IDIR, was 37 and 35%, respectively. The ADRV-N NSP1 has a double-stranded RNA binding motif (DSRM) and a putative autoproteolytic cleavage motif upstream from the DSRM. The putative ADRV-N NSP3 has a truncated C-terminus compared to the cognate protein of group B rotaviruses. All the available data demonstrate that ADRV-N differs significantly from the known rotaviruses and strongly suggest that ADRV-N is the first recognized member of a new group of rotaviruses infecting humans.
Collapse
Affiliation(s)
- H Yang
- Institute of Biotechnology and Faculty of Biosciences, University of Helsinki, Biocenter 2, P.O. Box 56 (Viikinkaari 5), FIN-00014 Helsinki, Finland
| | | | | | | | | | | |
Collapse
|
42
|
Cao J, Zhang Q, Wang Z, Liu F, Kang Z. An investigative report on the phenomenon of postponing the birth of a second child among farmers in Liaoning province. Chin J Popul Sci 2002; 9:9-17. [PMID: 12320986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
|
43
|
Kang Z, Huang L, Krieg U, Mauler-Machnik A, Buchenauer H. Effects of tebuconazole on morphology, structure, cell wall components and trichothecene production of Fusarium culmorum in vitro. Pest Manag Sci 2001; 57:491-500. [PMID: 11407024 DOI: 10.1002/ps.310] [Citation(s) in RCA: 19] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The effects of tebuconazole, a systemic fungicide, on the morphology, structure, cell wall components and toxin production of Fusarium culmorum were investigated in vitro. Treatment was by application of four filter paper strips (0.75 cm x 5.0 cm) soaked in 20 micrograms ml-1 fungicide placed around a point inoculum in Petri dishes. Mycelial growth was strongly inhibited by fungicide treatment. Scanning electron microscopic observations showed that the fungicide caused irregular swelling and excessive branching of hyphae. The morphological changes induced by the fungicide at the ultrastructural level included considerable thickening of the hyphal cell walls, excessive septation, the formation of the incomplete septa, extensive vacuolisation, accumulation of lipid bodies and progressing necrosis or degeneration of the hyphal cytoplasm. Non-membrane inclusion bodies were often detected in the hyphal cytoplasm. Furthermore, the formation of new hyphae (daughter hyphae) inside collapsed hyphal cells was common following treatment. The daughter hyphae also displayed severe alterations such as irregular thickening of the cell walls and necrosis of the cytoplasm. Using cytochemical techniques, the labelling densities of chitin and beta-1,3-glucan in the cell walls of the fungicide-treated hyphae were more pronounced than in those of the control hyphae. Moreover, immunogold labelling with antiserum against deoxynivalenol (DON) revealed that Fusarium toxin DON was localized in the cell walls, cytoplasm, mitochondria and vacuoles of the hyphae from the control and the fungicide treatment, but the labelling density in the fungicide-treated hyphae decreased dramatically compared with the control hyphae, indicating that tebuconazole reduced Fusarium toxin production of the fungus.
Collapse
Affiliation(s)
- Z Kang
- Institute of Phytomedicine (360), University Hohenheim, D-70593, Stuttgart, Germany
| | | | | | | | | |
Collapse
|
44
|
Abstract
Somatostatin (SOM) mRNA in developing ganglion cell layer (GCL) detected by in situ hybridization histochemistry and SOM peptide in developing optic chiasma and optic tract detected by immunocytochemistry were monitored to explore whether ganglion cells expressing SOM project to the visual center. Most of these cells in the developing GCL expressed SOM transiently from embryonic day 13 (E13) to E21. The cells expressing SOM mRNA initially followed a central-to-peripheral pattern of development. The cells expressing SOM mRNA in the retinas of fetuses became detectable at E13. From E14 to E17 the number of cells expressing SOM mRNA increased rapidly. At E17 most of the cells in the developing GCL expressed SOM mRNA. From E18 to postnatal days the positive cells became sparse except at the postnatal day 0 (PND0) the positive cells decreased dramatically in comparison with that at the E21. At PND15, the positive cells only can be found in the inner neuroblastic layer and in the ganglion cell layer. At PND20 the distribution pattern and the number of the positive cells were essentially the same as that in adult rat. SOM immunoreactivity was detectable at E16 in the developing optic chiasma and optic tract; the majority of the fibers in these area were SOM positive. From E16 to E18 the density of the immunostaining increased rapidly, whereas from E19 to E21 the density decreased. At PND0 no positive fibers were seen. The transient presence of SOM in most of the ganglion cells in the developing ganglion cell layer has prompted us to study the role of SOM in generation and differentiation of the retinal ganglion cells, and formation of the retina-visual center projections.
Collapse
Affiliation(s)
- Z Xiang
- Department of Histology and Embryology, Second Military Medical University, 200433, Shanghai, China.
| | | | | |
Collapse
|
45
|
Kang Z, Buchenauer H. Ultrastructural and cytochemical studies on the infection of wheat spikes byFusarium culmorum as well as on degradation of cell wall components and localization of mycotoxins in the host tissue. Mycotoxin Res 2000; 16 Suppl 1:1-5. [PMID: 23605402 DOI: 10.1007/bf02942968] [Citation(s) in RCA: 4] [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: 10/21/2022]
|
46
|
|
47
|
Huang H, Yuan Z, Hu M, Kang Z. [The alternation current conductive property of blood]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 1999; 16:181-3. [PMID: 12552659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
The blood electro-frequency properties of normal human body were investigated in the range of 1 Hz-10 MHz. The method of testing and the equipment were examined to meet the need for the measurement of blood property. In the experiment, it was discovered that the electric conductivity of blood increased obviously with the increase of testing frequency in the rage of 100 Hz-10 KHz, but almost no change in phase was noted. This result suggests it is necessary to modify the previous work and build up a reasonable equivalent electric model of blood.
Collapse
Affiliation(s)
- H Huang
- Biomechanics Institute, Sichuan University, Chengdu 610065
| | | | | | | |
Collapse
|
48
|
Chi H, Kang Z, Hu G. [Detection of fetal DNA in maternal plasma using the nested polymerase chain reaction]. Zhonghua Fu Chan Ke Za Zhi 1999; 34:27-9. [PMID: 11263169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
OBJECTIVE To search for a new method of non-invasive prenatal gene diagnosis. METHODS A single-copy human DYS14 gene of Y-chromosome of fetal DNA sequence was amplified by nested polymerase chain reaction (PCR) from twelve pregnant maternal plasma (12-40 weeks). A 239 bp and 198 bp specific fragment were obtained. The maternal plasma samples of twelve pregnant women were used directly for nested PCR. RESULTS The fragment was identified in 8 of 10 male-bearing pregnant women plasma. The diagnostic accordance rate was 80% (8/10), 6 to 8 women gave positive signals in two consecutive amplifications, 2 of 8 women gave positive signals in the second amplification. The rate of positive was increased greatly by nested PCR (from 60% to 80%). None of the other 2 female-bearing pregnant women had positive results. The final accuracy of 83.3% (10/12) was attained in all cases. CONCLUSION The finding of circulating fetal DNA in maternal plasma may have new implications for non-invasive prenatal gene diagnosis, and the nested PCR possesses the advantages of sensitivity and specificity which improves the clinical application.
Collapse
Affiliation(s)
- H Chi
- Second Affiliated Hospital, Harbin Medical University, Harbin 150086
| | | | | |
Collapse
|
49
|
Wang J, Qi K, Kang Z. [Repair of the over-convex antihelix]. Zhonghua Zheng Xing Shao Shang Wai Ke Za Zhi 1996; 12:198-9. [PMID: 9206134] [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: 02/04/2023]
Abstract
Contrary to a prominent ear, the deformity of the over-convex antihelix shows a very acute antihelix angle and helix depression and retreat. The patients usually have a desire to have such deformity corrected though it is not severe. In recent years we have corrected the over-conves antihelix using postauricular flap and cartilage with satisfactory results.
Collapse
Affiliation(s)
- J Wang
- Plastic Surgery Hospital, Beijing
| | | | | |
Collapse
|
50
|
Chen R, Cai Z, Kang Z. [An observation on pathological changes in retinal ultrastructure of rat with hypertension and after its life-long treatment with captopril]. Zhonghua Yan Ke Za Zhi 1995; 31:45-8. [PMID: 7781426] [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: 01/27/2023]
Abstract
The fundus and retinal ultrastructural changes of rats with hypertension and such rats having taken life-long captopril treatment were examined by funduscope, light and transmission electron microscopes. The normal rats were the controls. The results showed that in the hypertension group, the ratio of the diameter of the retinal artery to that of the vein was 1:2, the arteries were spastic and narrowed, their light reflexes were widened and their calibers of the lumens were uneven, the fundus appearances being consistent with grade I and II retinal changes of systemic hypertension. Under the light microscope, it was discovered that the basement membranes of the retinal capillaries were thickened and their lumens narrowed, resulting in retinal ischemia and anoxia. Under the transmission electron microscope, the main pathological changes involved the external segments of photoreceptors and ganglionic cells. The pathological changes were hazy renewed membranous discs at the basal portions of the external segments of photoreceptors, edematous ganglionic cells being the majority, their cytoplasm stained pale, mitochondrial vacuolization, enlargement of smooth endoplasmic reticula and degranulation of rough endoplasmic reticula. In the group of rats with hypertension having taken life-long captopril treatment, the fundi and blood pressure remained normal and no significant ultrastructural changes had taken place in their retinae.
Collapse
Affiliation(s)
- R Chen
- Department of Anatomy, Fujian Medical College, Fuzhou
| | | | | |
Collapse
|