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Shen Y, Zhang T, Yang Z, Zhang Y, Huang D, Hou J, Tian M, Ma Y. [Preliminary study on the effect of Echinococcus multilocaris on phenotypic transformations of glucose metabolism and polarization types in macrophages]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2024; 35:590-603. [PMID: 38413020 DOI: 10.16250/j.32.1374.2023118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
OBJECTIVE To investigate the effects of Echinococcus multilocularis on the phenotypic transformations of glucose metabolism, polarization types and inflammatory responses in macrophages, so as to provide insights into elucidation of echinococcosis pathogenesis. METHODS Bone marrow cells were isolated from C57BL/6J mice at ages of 6 to 8 weeks, and induced into bone marrow-derived macrophages (BMDMs) with mouse macrophage colony-stimulating factor (M-CSF), which served as controls (BMDMs-M0). BMDMs-M0 induced M2 macrophages by interleukin-4 for 24 hours served as the IL-4 induction group, and BMDMs-M0 co-cultured with 2.4 ng/mL E. multilocularis cystic fluid (CF) served as the BMDM-CF co-culture group, while BMDMs-M0 co-cultured with E. multilocularis protoscolex (PSC) at a ratio of 500:1 served as the BMDM-PSC co-culture group. The types of polarization of BMDMs co-cultured with E. multilocularis CF and PSC were analyzed using flow cytometry, and the expression of macrophage markers, inflammatory factors, and glucose metabolism-related enzymes was quantified using fluorescent quantitative real-time PCR (qPCR) and Western blotting assays. RESULTS There were significant differences among the four groups in terms of Arginase-1 (Arg1) (F = 1 457.00, P < 0.000 1), macrophages-derived C-C motif chemokine 22 (Ccl22) (F = 22 203.00, P < 0.000 1), resistin-like α (Retnla) (F = 151.90, P < 0.000 1), inducible nitric oxide synthase (iNOS) (F = 107.80, P < 0.001), hexokinase (HK) (F = 9 389.00, P < 0.000 1), pyruvate kinase (PK) (F = 641.40, P < 0.001), phosphofructokinase 1 (PFK1) (F = 43.97, P < 0.01), glucokinase (GK) (F = 432.50, P < 0.000 1), pyruvate dehydrogenase kinases1 (PDK1) (F = 737.30, P < 0.000 1), lactic dehydrogenase (LDH) (F = 3 632.00, P < 0.000 1), glucose transporter 1 (GLUT1) (F = 532.40, P < 0.000 1), glyceraldehyde-3-phosphate dehydrogenase (GAPDH) (F = 460.00, P < 0.000 1), citrate synthase (CS) (F = 5 642.00, P < 0.01), glycogen synthase1 (GYS1) (F = 273.30, P < 0.000 1), IL-6 (F = 1 823.00, P < 0.000 1), IL-10 (F = 291.70, P < 0.000 1), IL-1β (F = 986.60, P < 0.000 1), and tumor necrosis factor (TNF)-α (F = 334.80, P < 0.000 1) and transforming growth factor (TGF)-β mRNA expression (F = 163.30, P < 0.001). The proportion of M2 macrophages was significantly higher than that of M1 macrophages in the BMDM-PSC co-culture group [(22.87% ±1.48%) vs. (1.70% ±0.17%); t = 24.61, P < 0.001], and the proportion of M2 macrophages was significantly higher than that of M1 macrophages in the BMDM-CF co-culture group [(20.07% ±0.64%) vs. (1.93% ±0.25%); t = 45.73, P < 0.001]. The mRNA expression of M2 macrophages markers Arg1, Ccl22 and Retnla was significantly higher in the BMDM-CF and BMDM-PSC co-culture groups than in the control group (all P values < 0.01), and no significant difference was seen in the mRNA expression of the M1 macrophage marker iNOS among the three groups (P > 0.05), while qPCR assay quantified higher mRNA expression of key glycolytic enzymes HK, PK and PFK, as well as inflammatory factors IL-10, IL-1β, TNF-α and TGF-β in the BMDM-CF and BMDM-PSC co-culture groups than in the control group (all P values < 0.01). Western blotting assay determined higher HK, PK and PFK protein expression in the BMDM-PSC co-culture group than in the control group (all P values < 0.05), and qPCR quantified higher GLUT1, GAPDH and IL-6 mRNA expression in the BMDM-CF co-culture group than in the control group (all P values < 0.05), while higher HK, PK and PFK protein and mRNA expression (all P values < 0.01), as well as lower IL-6 and TNF-α and higher TGF-β mRNA expression (both P values < 0.05) was detected in the IL-4 induction group than in the control group. Glycolytic stress test showed no significant difference in the extracellular acidification rate (ECAR) of mouse BMDM among the control group, IL-4 induction group and BMDM-PSC co-culture group (F = 124.4, P < 0.05), and a higher ECAR was seen in the BMDM-PSC co-culture group and a lower ECAR was found in the IL-4 induction group than in the control group (both P values < 0.05). CONCLUSIONS Treatment of E. multilocularis CF or PSC mainly causes polarization of BMDM into M2 macrophages, and phenotypic transformation of glucose metabolism into high-energy and high-glycolytic metabolism, and affects inflammatory responses in BMDM.
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Affiliation(s)
- Y Shen
- Graduate School of Qinghai University, Xining, Qinghai 810000, China
- Qinghai Provincial Women and Children's Hospital, Xining, Qinghai 810015, China
| | - T Zhang
- Department of Pediatrics, Affiliated Hospital of Qinghai University, China
| | - Z Yang
- Department of Pediatrics, Affiliated Hospital of Qinghai University, China
| | - Y Zhang
- Central Laboratory, Affiliated Hospital of Qinghai University, China
| | - D Huang
- Central Laboratory, Affiliated Hospital of Qinghai University, China
| | - J Hou
- Central Laboratory, Affiliated Hospital of Qinghai University, China
| | - M Tian
- Central Laboratory, Affiliated Hospital of Qinghai University, China
| | - Y Ma
- Office of Scientific Research Management, Affiliated Hospital of Qinghai University, Xining, Qinghai 810000, China
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Sun S, Tian M, Lin X, Zhao P. Disturbed white matter integrity on diffusion tensor imaging in young children with epilepsy. Clin Radiol 2024; 79:e119-e126. [PMID: 37940443 DOI: 10.1016/j.crad.2023.09.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 09/11/2023] [Accepted: 09/25/2023] [Indexed: 11/10/2023]
Abstract
AIM To evaluate whether abnormalities in white matter (WM) integrity are present in young children with epilepsy. MATERIALS AND METHODS Twelve children (3-6 years old) with epilepsy and six matched healthy controls were recruited for brain diffusion tensor imaging (DTI). Track-based spatial statistics (TBSS) was used to analyse and compare DTI indices of mean diffusivity (MD), fractional anisotropy (FA), axial and radial diffusivity (AD/RD) between patients and controls, and correlations between clinical variables and DTI parameters were analysed. RESULTS Compared with controls, patients showed increased FA in the left superior corona radiata and increased AD in the bilateral superior corona radiata. In children with generalised epilepsy, FA was increased in the left external capsule, while AD was decreased in the body of the corpus callosum, the left external capsule and the left superior longitudinal fasciculus. In those with focal epilepsy, FA was increased in the genu and body of the corpus callosum, and RD was decreased in the genu of the corpus callosum and left external capsule. Compared with partial epilepsy, generalised epilepsy was associated with increased FA in the right anterior corona radiata and decreased RD in the right anterior corona radiata and the genu and body of the corpus callosum. No significant correlations were observed between clinical variables and DTI parameters. CONCLUSIONS The results of this study indicate that the microstructure of the white matter is disturbed by epileptic discharges and a compensatory response occurs during early brain development.
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Affiliation(s)
- S Sun
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - M Tian
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - X Lin
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
| | - P Zhao
- Department of Radiology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China.
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Xu QY, Tian M, Lu M, Lu MP, Cheng L. [The role of allergen-specific immunotherapy in the primary and secondary prevention of allergic diseases]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:1259-1265. [PMID: 38186103 DOI: 10.3760/cma.j.cn115330-20230506-00209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Affiliation(s)
- Q Y Xu
- Department of Pediatrics, Suzhou Science & Technology Town Hospital/Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou 215153, China Clinical Allergy Center, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - M Tian
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - M Lu
- Department of Pediatrics, Suzhou Science & Technology Town Hospital/Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou 215153, China
| | - M P Lu
- Clinical Allergy Center, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - L Cheng
- Clinical Allergy Center, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China Department of Otorhinolaryngology, the First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China International Centre for Allergy Research, Nanjing Medical University, Nanjing 210029, China
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Zhang X, Yang M, Zhang J, Ye P, Wong RMY, Cheung WH, Armstrong E, Johansen A, Ivers R, Wu X, Tian M. Establishing a Chinese older hip fracture registry for older patients: a Delphi study to define the focus and key variables for this registry. Osteoporos Int 2023; 34:1763-1770. [PMID: 37341729 DOI: 10.1007/s00198-023-06832-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 06/09/2023] [Indexed: 06/22/2023]
Abstract
A national hip fracture registry does not yet exist in China. This is the first to recommend a core variable set for the establishment of a Chinese national hip fracture registry. Thousands of Chinese hospitals will build on this and improve the quality of management for older hip fracture patients. The rapidly ageing population of China already experiences over half a million hip fractures every year. Many countries have developed national hip fracture registries to improve the quality of hip fracture management, but such a registry does not exist in China. The study is aimed at determining the core variables of a national hip fracture registry for older hip fracture patients in China. A rapid literature review was conducted to develop a preliminary pool of variables from existing global hip fracture registries. Two rounds of an e-Delphi survey were conducted with experts. The e-Delphi survey used a Likert 5-point scale and boundary value analysis to filter the preliminary pool of variables. The list of core variables was finalised following an online consensus meeting with the experts. Thirty-one experts participated. Most of the experts have senior titles and have worked in a corresponding area for more than 15 years. The response rate of the e-Delphi was 100% for both rounds. The preliminary pool of 89 variables was established after reviewing 13 national hip fracture registries. With two rounds of the e-Delphi and the expert consensus meeting, 86 core variables were recommended for inclusion in the registry. This study is the first to recommend a core variable set for the establishment of a Chinese national hip fracture registry. The further development of a registry to routinely collect data from thousands of hospitals will build on this work and improve the quality of management for older hip fracture patients in China.
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Affiliation(s)
- X Zhang
- School of Public Health, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, 150081, China
| | - M Yang
- National Centre of Orthopaedics, Beijing Jishuitan Hospital, Beijing, China.
- Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Peking University Fourth School of Clinical Medicine, 31 Xinjiekou E Street, Xicheng District, Beijing, 100035, China.
| | - J Zhang
- School of Population Health, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
| | - P Ye
- National Centre for Non-communicable Diseases Control and Prevention, Chinese Centre for Disease Control and Prevention, Beijing, China
| | - R M Y Wong
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - W-H Cheung
- Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - E Armstrong
- School of Population Health, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, Randwick, Australia
| | - A Johansen
- University Hospital of Wales and School of Medicine, Cardiff University, Cardiff, UK
| | - R Ivers
- School of Population Health, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia
| | - X Wu
- National Centre of Orthopaedics, Beijing Jishuitan Hospital, Beijing, China
- Department of Orthopaedics and Traumatology, Beijing Jishuitan Hospital, Peking University Fourth School of Clinical Medicine, 31 Xinjiekou E Street, Xicheng District, Beijing, 100035, China
| | - M Tian
- School of Public Health, Harbin Medical University, 157 Baojian Road, Nangang District, Harbin, 150081, China.
- The George Institute for Global Health, Faculty of Medicine and Health, University of New South Wales, Sydney, Australia.
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Xu QY, Tian M, Lu M, Lu MP, Liu Y, Wang JF, Cheng L. [Research advances on allergen component-resolved diagnosis in respiratory allergic diseases]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1324-1335. [PMID: 37743291 DOI: 10.3760/cma.j.cn112150-20220929-00937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Allergen component-resolved diagnosis (CRD) is an emerging molecular diagnostic technology, which can further clarify the protein profile of allergen components in allergic patients, achieve accurate detection of allergens, and have great significance and value for the precise prevention and treatment of allergic diseases. In this article, the CRD technology and its research progress in respiratory allergic diseases are introduced, and the importance of CRD in the evaluation, prevention and treatment of respiratory allergic diseases are discussed.
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Affiliation(s)
- Q Y Xu
- Department of Pediatrics, Suzhou Science & Technology Town Hospital/Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou 215153, China Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - M Tian
- Department of Respiratory Medicine, Children's Hospital of Nanjing Medical University, Nanjing 210008, China
| | - M Lu
- Department of Pediatrics, Suzhou Science & Technology Town Hospital/Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou 215153, China
| | - M P Lu
- Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Y Liu
- Research and Development Department, Hangzhou Zheda Dixun Biological Gene Engineering Co., Ltd., Hangzhou 310052, China Allergy Research Center, Zhejiang University, Hangzhou 310009, China
| | - J F Wang
- Research and Development Department, Hangzhou Zheda Dixun Biological Gene Engineering Co., Ltd., Hangzhou 310052, China Allergy Research Center, Zhejiang University, Hangzhou 310009, China
| | - L Cheng
- Clinical Allergy Center, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China Department of Otorhinolaryngology, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China International Centre for Allergy Research, Nanjing Medical University, Nanjing 210029, China
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Zhang L, Zhao Y, Song H, Gao X, Zhang Q, Liu Y, Sun B, Tian M, Song H, Liu H. Initial decomposition mechanisms and the inverse effects of temperature and PH2 on the thermodynamic stability of UH 3. Phys Chem Chem Phys 2023; 25:12515-12521. [PMID: 37097757 DOI: 10.1039/d2cp05931b] [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: 04/26/2023]
Abstract
The thermodynamic stability of uranium hydrides is of broad interest and fundamental importance for understanding the hydriding corrosion of uranium, and the storage and isotope separation of hydrogen. Based on the first-principles calculations, we reveal the initial decomposition mechanism, interpret the experimental pyrolysis results, and discuss the inverse effects of temperature and hydrogen pressure (PH2) on the thermodynamic stability of β-UH3. The decomposition mechanism of β-UH3 is found to be closely related to the changes of U-H bonding properties in UH12 cages. Specifically, at the beginning it is difficult to break the first U-H covalent bond in each UH12 cage, which brings in the existence of a concave region in the experimental PH2-C-T curve; however, it boosts the itinerant character of U-5f electrons. Thereafter, the formation energy of H-vacancies in the degraded UH11 cages is almost changeless when the H/U atom ratio decreases, resulting in the van't Hoff plateau of the PH2-C-T curve. Based on the above mechanisms, we propose a theoretical method to evaluate the thermodynamic stability of β-UH3. The calculated PH2-C-T curve is consistent with experiment, showing that temperature promotes β-UH3 decomposition and PH2 plays an opposite role. Moreover, this method is independent of experimental calibration and is applied to discuss the isotope effect of hydrogen in β-UH3. This work provides new insight and a practical method for the scientific studies of uranium hydride, which is also essential to industrial applications in hydrogen isotope separation.
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Affiliation(s)
- Le Zhang
- Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
- Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Yanhong Zhao
- Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
| | - Hongzhou Song
- Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
| | - Xingyu Gao
- Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
- Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Qili Zhang
- Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
| | - Yu Liu
- Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
- Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Bo Sun
- Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
- Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Mingfeng Tian
- Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
| | - Haifeng Song
- Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
- Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Haifeng Liu
- Institute of Applied Physics and Computational Mathematics, Beijing, 100094, China
- Laboratory of Computational Physics, Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
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Liu CH, Li LJ, Tian M, Cao GH, Zhang SF, Li JT. Two rare copy number variants involving loss of NPHP1, MALL, and MTLN genes contribute to nephronophthisis-induced nephropathy progression in a family: A case report. Niger J Clin Pract 2023; 26:524-527. [PMID: 37203120 DOI: 10.4103/njcp.njcp_775_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Nephronophthisis (NPHP) is a common pediatric cystic kidney disease, accounting for approximately 10% of end-stage renal failure cases in children. NPHP is primarily diagnosed through the identification of indel mutations and copy number variants (CNVs), and patients carrying NPHP1 mutations usually progress to renal failure at a mean age of 13 years old. However, the association between CNVs containing NPHP1 variations and the progression of NPHP-induced disease remains unclear. Here, we report three NPHP patients in a family. The proband had developed stage 4 chronic kidney disease (CKD) at 9 years old, and her younger brother and older sister had developed renal failure at 8 and 10 years old, respectively. A genetic diagnosis showed that they carried two rare CNVs, including homozygous loss of NPHP1, MALL, ACTR1AP1, MTLN, and LOC100507334. Heterozygous deletions mainly consisted of non-coding RNA genes on both sides of the CNVs. The proband was in stage 4 of CKD while her brother had progressed to renal failure, probably due to more extensive heterozygous deletion of a 67.115 kbp fragment, which included LIMS3-LOC440895, LOC440895, GPAA1P1, ZBTB45P1, and LINC0112 genes. This report demonstrates that larger CNV deletions, including homozygous NPHP1, MALL, and MTLN mutations and heterozygous deletions, presumably accelerate disease progression. Therefore, early genetic diagnosis plays a crucial role in the intervention and prognosis of these patients.
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Affiliation(s)
- C H Liu
- Department of Nephrology and Rheumatology, Zhengzhou Key Laboratory of Pediatric Kidney Disease Research; Henan Provincial Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
| | - L J Li
- Department of Nephrology and Rheumatology, Zhengzhou Key Laboratory of Pediatric Kidney Disease Research, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
| | - M Tian
- Department of Nephrology and Rheumatology, Zhengzhou Key Laboratory of Pediatric Kidney Disease Research, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
| | - G H Cao
- Department of Nephrology and Rheumatology, Zhengzhou Key Laboratory of Pediatric Kidney Disease Research, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
| | - S F Zhang
- Department of Nephrology and Rheumatology, Zhengzhou Key Laboratory of Pediatric Kidney Disease Research, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
| | - J T Li
- Department of Nephrology and Rheumatology, Zhengzhou Key Laboratory of Pediatric Kidney Disease Research; Henan Provincial Key Laboratory of Children's Genetics and Metabolic Diseases, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, China
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Tian M, Zhang SS, Sun GW. [Tumoral calcinosis in temporomandibular joint region: a case report of 2 patients]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:180-184. [PMID: 36746452 DOI: 10.3760/cma.j.cn112144-20220523-00272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- M Tian
- The Fifth Outpatient Department, Nanjing Stomatological Hospital, Medical School of Nanjing University,Nanjing 210008,China
| | - S S Zhang
- Department of Oral Prevention, Nanjing Stomatological Hospital, Medical School of Nanjing University,Nanjing 210008,China
| | - G W Sun
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University,Nanjing 210008,China
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Cai C, Xiong S, Millett C, Tian M, Hone T. The health system and health impacts of primary healthcare reform in China: A systematic review. Eur J Public Health 2022. [DOI: 10.1093/eurpub/ckac129.538] [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: 11/13/2022] Open
Abstract
Abstract
Background
China has undergone a comprehensive primary healthcare(PHC) reform since 2009 aiming to deliver accessible, higher-quality, and equitable healthcare. However, there is limited understanding of the effectiveness of this reform. This systematic review synthesizes evidence on health system and health impacts of this reform.
Methods
We searched 13 international databases and three Chinese databases for quantitative studies assessing the impacts of this reform published between January 2009 and March 2020. We searched for studies in English or Mandarin. Eligible study designs were RCTs, quasi-experimental studies and controlled before-after studies. We included studies that: assessed PHC policies since 2009; had geographical, temporal or population comparators; and assessed any outcome measures of health expenditures, health service utilisation, quality of care or health outcomes. Study quality was assessed using ROBINS-I, and results synthesized narratively. PROSPERO: CRD42021239991.
Results
Of 35,480 titles, 37 studies were included (27 in English and ten in Mandarin). Eight were considered at low risk of bias. The 37 studies covered all major PHC policies since 2009, but mostly focused on the essential medicine (N = 15) and financing (N = 10). The quantity and quality of studies on service delivery policies(e.g., family physician and essential health services), were low(N = 3,with moderate or serious risk of bias). 17 studies found that the PHC reforms promoted primary care utilisation. Its impacts on quality and health improvement appear limited to people with chronic diseases(N = 11). Evidence on primary care costs and OOPs were not clear. Some evidence showed that the reforms were pro-equity with benefits accrued in disadvantaged regions and groups.
Conclusions
Comprehensive PHC reforms can deliver some benefits related to utilisation and health for high-risk and vulnerable populations. Policymakers should continue to prioritize PHC to achieve Universal Health Coverage.
Key messages
• The finding suggests that large-scale and comprehensive primary healthcare reforms can deliver benefits related to utilisation and health for high-risk and vulnerable populations.
• Future research should include more robust study designs and seek to better understand the impact of major PHC reforms on quality of care, health outcomes and equity.
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Affiliation(s)
- C Cai
- Public Health Policy Evaluation Unit, Imperial College London , London, UK
| | - S Xiong
- George Institute for Global Health, University of New South Wales The , Sydney, Australia
- Global Health Research Centre, Duke Kunshan University , Kunshan, China
| | - C Millett
- Public Health Policy Evaluation Unit, Imperial College London , London, UK
- National School of Public Health, NOVA University , Lisbon, Portugal
| | - M Tian
- George Institute for Global Health, University of New South Wales The , Sydney, Australia
- School of Public Health, Harbin Medical University , Harbin, China
| | - T Hone
- Public Health Policy Evaluation Unit, Imperial College London , London, UK
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Chu Y, Tian M, Marcondes M, Overwijk W, Lee D, Klein C, Cairo M. OPTIMIZING CHIMERIC ANTIGEN RECEPTOR (CAR) ENGINEERED NK CELL-MEDIATED CYTOTOXICITY COMBINED WITH ANTI-CD 20 OR ANTI-CD79 THERAPEUTIC ANTIBODIES AND NKTR-255 IN BURKITT LYMPHOMA (BL). Leuk Res 2022. [DOI: 10.1016/s0145-2126(22)00233-8] [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]
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Tian M, Lu Z, Chen S, Lu G, Bu F, Deng W, Ding R. 1014P Resistance landscape to almonertinib in EGFR-mutated NSCLC. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1140] [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: 11/01/2022] Open
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Standish JR, Góngora-Castillo E, Bowman MJ, Childs KL, Tian M, Quesada-Ocampo LM. Development, Validation, and Utility of Species-Specific Diagnostic Markers for Detection of Peronospora belbahrii. Phytopathology 2022; 112:1667-1675. [PMID: 35196067 DOI: 10.1094/phyto-09-21-0393-r] [Citation(s) in RCA: 1] [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] [Indexed: 06/14/2023]
Abstract
Peronospora belbahrii is an oomycete and the cause of basil downy mildew, one of the most destructive diseases affecting basil production worldwide. Disease management is challenging due to wind-dispersed sporangia and contaminated seed; therefore, identifying P. belbahrii in seed lots before sale or planting or in the field before symptoms develop could allow for timely deployment of disease management strategies. In this study, a draft genome assembly and next-generation sequencing reads for P. belbahrii, as well as publicly available DNA-seq and RNA-seq reads of several other downy mildew pathogens, were incorporated into a bioinformatics pipeline to predict P. belbahrii-specific diagnostic markers. The specificity of each candidate marker was validated against a diverse DNA collection of P. belbahrii, host tissue, and related oomycetes using PCR. Two species-specific markers were identified and used as templates to develop a highly sensitive probe-based real-time quantitative PCR (qPCR) assay that could detect P. belbahrii in leaf tissue and seed samples. Both markers were capable of reliably detecting as low as 500 fg/µl of P. belbahrii genomic DNA and as few as 10 sporangia. The qPCR assay was then validated with seed samples collected from a basil cultivar experiment. In total, 48 seed samples were collected and tested; P. belbahrii was detected in samples of all cultivars at estimated concentrations of 600 fg/µl up to 250 pg/µl and at as few as 10 sporangia up to >1,000 sporangia. The markers and assays are valuable for diagnostics and identifying P. belbahrii-contaminated seed lots to mitigate the effects of future basil downy mildew epidemics.
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Affiliation(s)
- J R Standish
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27695-7613, U.S.A
| | - E Góngora-Castillo
- Department of Biotechnology, Yucatan Center for Scientific Research, Chuburná de Hidalgo, 97205 Mérida, Yucatán, México
| | - M J Bowman
- Department of Plant Biology, Michigan State University, East Lansing, MI 48824, U.S.A
- Ball Horticultural Company, West Chicago, IL 60185, U.S.A
| | - K L Childs
- Department of Plant Biology, Michigan State University, East Lansing, MI 48824, U.S.A
| | - M Tian
- Department of Plant and Environmental Protection Sciences, University of Hawaii at Manoa, Honolulu, HI 96822, U.S.A
| | - L M Quesada-Ocampo
- Department of Entomology and Plant Pathology, North Carolina State University, Raleigh, NC 27695-7613, U.S.A
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Chen B, Tian M, Zhang J, Li B, Xiao Y, Chow P, Kenney-Benson C, Deng H, Zhang J, Sereika R, Yin X, Wang D, Hong X, Jin C, Bi Y, Liu H, Liu H, Li J, Jin K, Wu Q, Chang J, Ding Y, Mao HK. Novel Valence Transition in Elemental Metal Europium around 80 GPa. Phys Rev Lett 2022; 129:016401. [PMID: 35841573 DOI: 10.1103/physrevlett.129.016401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 04/21/2022] [Accepted: 06/03/2022] [Indexed: 06/15/2023]
Abstract
Valence transition could induce structural, insulator-metal, nonmagnetic-magnetic and superconducting transitions in rare-earth metals and compounds, while the underlying physics remains unclear due to the complex interaction of localized 4f electrons as well as their coupling with itinerant electrons. The valence transition in the elemental metal europium (Eu) still has remained as a matter of debate. Using resonant x-ray emission scattering and x-ray diffraction, we pressurize the states of 4f electrons in Eu and study its valence and structure transitions up to 160 GPa. We provide compelling evidence for a valence transition around 80 GPa, which coincides with a structural transition from a monoclinic (C2/c) to an orthorhombic phase (Pnma). We show that the valence transition occurs when the pressure-dependent energy gap between 4f and 5d electrons approaches the Coulomb interaction. Our discovery is critical for understanding the electrodynamics of Eu, including magnetism and high-pressure superconductivity.
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Affiliation(s)
- Bijuan Chen
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
| | - Mingfeng Tian
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Jurong Zhang
- Shandong Provincial Engineering and Technical Center of Light Manipulations and Shandong Provincial Key Laboratory of Optics and Photonic Device, School of Physics and Electronics, Shandong Normal University, Jinan 250358, China
| | - Bing Li
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
| | - Yuming Xiao
- HPCAT, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Paul Chow
- HPCAT, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Curtis Kenney-Benson
- HPCAT, X-ray Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Hongshan Deng
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
| | - Jianbo Zhang
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
| | - Raimundas Sereika
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
| | - Xia Yin
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
| | - Dong Wang
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
| | - Xinguo Hong
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
| | - Changqing Jin
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yan Bi
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
| | - Hanyu Liu
- International Center for Computational Method and Software, College of Physics, Jilin University, Changchun 130012, China
| | - Haifeng Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Jun Li
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China
| | - Ke Jin
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China
| | - Qiang Wu
- National Key Laboratory of Shock Wave and Detonation Physics, Institute of Fluid Physics, CAEP, Mianyang 621900, China
| | - Jun Chang
- College of Physics and Information Technology, Shaanxi Normal University, Xi'an 710119, China
| | - Yang Ding
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
| | - Ho-Kwang Mao
- Center for High-Pressure Science and Technology Advanced Research, Beijing 100094, China
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14
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Zhao G, Meng J, Wang C, Wang L, Wang H, Tian M, Ma L, Guo X, Xu B. Roles of the protein disulphide isomerases AccPDIA1 and AccPDIA3 in response to oxidant stress in Apis cerana cerana. Insect Mol Biol 2022; 31:10-23. [PMID: 34453759 DOI: 10.1111/imb.12733] [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] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 08/19/2021] [Accepted: 08/25/2021] [Indexed: 06/13/2023]
Abstract
Protein disulphide isomerase (PDI) plays an important role in a variety of physiological processes through its oxidoreductase activity and molecular chaperone activity. In this study, we cloned two PDI family members, AccPDIA1 and AccPDIA3, from Apis cerana cerana. AccPDIA1 and AccPDIA3 had typical sequence features of PDI family members and were constitutively expressed in A. cerana cerana. The expression levels of AccPDIA1 and AccPDIA3 were generally upregulated after treatment with a variety of environmental stress factors. Inhibition assays showed that E. coli expressing recombinant AccPDIA1 and AccPDIA3 proteins was more resistant to oxidative stress than control E. coli. In addition, silencing AccPDIA1 or AccPDIA3 in A. cerana cerana resulted in significant changes in the expression levels of several antioxidant-related genes as well as the enzymatic activities of peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT) and reduced the survival rate of A. cerana cerana under oxidative stress caused by high temperature. In conclusion, our results suggest that AccPDIA1 and AccPDIA3 may play important roles in the antioxidant activities of A. cerana cerana.
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Affiliation(s)
- G Zhao
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - J Meng
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - C Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - L Wang
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - H Wang
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - M Tian
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - L Ma
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - X Guo
- State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Taian, Shandong, P. R. China
| | - B Xu
- College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, P. R. China
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Sternberg Z, Podolsky R, Yu J, Tian M, Hojnacki D, Schaller B. Delayed Decline of Cognitive Function by Antihypertensive Agents: A Cohort Study Linked with Genotype Data. J Prev Alzheimers Dis 2022; 9:679-691. [PMID: 36281672 DOI: 10.14283/jpad.2022.73] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
BACKGROUND Arterial hypertension is among factors with the potential for increasing the risk of cognitive impairment in elderly subjects. However, studies investigating the effects of antihypertensives on cognitive function have reported mixed results. METHODS We have used the National Alzheimer's Coordinating Center (NACC) Uniform Data Set (UDS) to investigate the effect of each class of antihypertensives, both as single and combined, in reducing the rate of conversion from normal to mild cognitive impairment (MCI). RESULTS The use of antihypertensive drugs was associated with 21% (Hazard ratio: 0.79, p<01001) delay in the rate of conversion to MCI. This effect was modulated by age, gender, and genotypic APOE4 allele. Among different antihypertensive subclasses, calcium channel blockers (CCBs) (24%, HR: 0.76, P=0.004), diuretics (21%, HR: 0.79, P=0.006), and α1-adrenergic blockers (α1-ABs) (23%, HR: 0.77, P=0.034) significantly delayed the rate of MCI conversion. A significant effect was observed with the selective L-type voltage-gated CCBs, dihydropyridines, amlodipine (47%, HR=0.53, P<0.001) and nifedipine (49%, HR=0.51, P=0.012), whereas non-DHPs showed insignificant effect. Loop diuretics, potassium sparing diuretics, and thiazides all significantly reduced the rate of MCI conversion. Combination of α1-AB and diuretics led to synergistic effects; combination of vasodilators plus β-blockers (βBs), and α1-AB plus βBs led to additive effect in delaying the rate of MCI conversion, when compared to a single drug. CONCLUSION Our results could have implications for the more effective treatment of hypertensive elderly adults who are likely to be at high risk of cognitive decline and dementia. The choice of combination of antihypertensive therapy should also consider the combination which would lead to an optimum benefit on cognitive function.
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Affiliation(s)
- Z Sternberg
- Zohara Sternberg, PhD, Clinical Associate Professor of Neurology, Buffalo Medical Center, Buffalo, NY, 14203, USA, Tel: 716-8597540, Fax: 716-8592430, 859-7573,
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Tian M, Zhao R, Huang J, Ji ZH, Fang M, Dong Y, Chen L, Niu LN, Chen JH. [Prospective clinical study on the influence of implant crown and bridge prostheses characteristics on peri-implant disease]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:1197-1204. [PMID: 34915653 DOI: 10.3760/cma.j.cn112144-20210918-00419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the influence of different characteristics of implant-supported fixed dental prostheses on the incidence of peri-implant disease. Methods: Prospective cohort was established for patients who received implant-supported fixed dental prostheses at the Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University between June 2014 and September 2015. Several patient-related factors, implant prostheses factors, and oral hygiene maintenance factors were collected. The Log-rank test was used to compare the peri-implant disease rates of various factors, and the Cox proportional hazards model was used to conduct multivariate study on single factor significant factors to analyze the impact on the incidence of peri-implant disease. Results: A total of 214 subjects and 351 implants were included in the cohort, the follow-up period was (11.0±3.5) months. Finally, 43.0% (92/214) of patients and 37.3% (131/351) of implants developed peri-implant diseases. The incidence of peri-implant mucositis and peri-implantitis was 41.1% (88/214) and 4.2% (9/214) at the subject level,and 34.2% (120/351) and 3.1% (11/351) at the implant level. Among the factors associated with the implant prosthesis, single factor Log-rank analysis showed that prostheses retention methods, proximal contact of the prostheses, occlusion situation were statistical significance (P<0.05). Multivariate analysis using Cox proportional hazards model showed that screw retention (hazard ratio=2.38, 95%CI: 1.42-3.99), proximal contact loss of the prostheses (hazard ratio=2.36, 95%CI: 1.31-4.27) were independent risk factors for peri-implant disease (P<0.05). Conclusions: Factors such as prostheses retention mode and proximal contact characteristics have important influence on the health status of the implant.
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Affiliation(s)
- M Tian
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - R Zhao
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - J Huang
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - Z H Ji
- Department of Epidemiology, School of Public Health, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, Air Force Medical University, Xi'an 710032, China
| | - M Fang
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - Y Dong
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - L Chen
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - L N Niu
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
| | - J H Chen
- Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University & State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Xi'an 710032, China
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Link H, Thompson S, Tian M, Meise D, Haas J, Maas C, Dimitrov S. 1706P A comparative assessment of neutropenia events, healthcare resource use, and costs among patients treated with long-acting granulocyte-colony stimulating factor in Germany. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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18
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Liu S, Zhao L, Xiao X, Jiang W, Ju Z, Tian M, Li H, Lin H. Acetate promotes lipogenesis in adipocytes but not in hepatocytes of chickens. Br Poult Sci 2021; 63:54-61. [PMID: 34309437 DOI: 10.1080/00071668.2021.1960950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
1.The role of acetate in lipogenesis of chickens remains largely unknown. This trial investigated the effect of sodium acetate (SA) on chicken fat metabolism via in vivo and in vitro experiments.2.The results indicated that supplementation of SA (1.0 g/kg feed) showed marginal to moderate stimulation on the area of the abdominal fat cells and triglyceride (TG) content in liver and adipose tissues. It increased the transcription of some genes involved in fat synthesis and deposition, but did not affect free fatty acid receptor 2 (FFAR2) expression in either liver or abdominal fat.3. In cultured hepatocytes treated with 0.01 mM to 5 mM SA, although mRNA levels of ACC1, PPAR, SREBP-1 c, and FFAR2 were upregulated with SA at certain concentrations, TG content and protein expression of lipogenic genes and FFAR2 were not altered at any dosages. In adipogenic differentiation of preadipocytes, high concentrations of SA (5 mM) exhibited significant increments in TG content and accumulated fat droplets, associated with stimulated transcription of FAS, LPL, AD, FABP4, and FFAR2, as well as elevated protein expression of FABP4 and FFAR2.4. The results showed that adipocytes were more sensitive to acetate than hepatocytes in chickens. While acetate played a minor role in hepatic fat metabolism, it promoted lipogenesis in adipocytes via FFAR2 with the involvement of FAS, LPL, and FABP4.
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Affiliation(s)
- S Liu
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, China
| | - L Zhao
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - X Xiao
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - W Jiang
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - Z Ju
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, China
| | - M Tian
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
| | - H Li
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Tai'an, China
| | - H Lin
- College of Life Sciences, Shandong Agricultural University, Tai'an, China
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Liu Z, Mi F, Han M, Tian M, Deng L, Meng N, Luo J, Fu R. Bone marrow-derived mesenchymal stem cells inhibit CD8 + T cell immune responses via PD-1/PD-L1 pathway in multiple myeloma. Clin Exp Immunol 2021; 205:53-62. [PMID: 33735518 DOI: 10.1111/cei.13594] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 02/03/2021] [Accepted: 02/21/2021] [Indexed: 12/19/2022] Open
Abstract
High expression of the inhibitory receptor programmed cell death ligand 1 (PD-L1) on tumor cells and tumor stromal cells have been found to play a key role in tumor immune evasion in several human malignancies. However, the expression of PD-L1 on bone marrow mesenchymal stem cells (BMSCs) and whether the programmed cell death 1 (PD-1)/PD-L1 signal pathway is involved in the BMSCs versus T cell immune response in multiple myeloma (MM) remains poorly defined. In this study, we explored the expression of PD-L1 on BMSCs from newly diagnosed MM (NDMM) patients and the role of PD-1/PD-L1 pathway in BMSC-mediated regulation of CD8+ T cells. The data showed that the expression of PD-L1 on BMSCs in NDMM patients was significantly increased compared to that in normal controls (NC) (18·81 ± 1·61 versus 2·78± 0·70%; P < 0·001). Furthermore, the PD-1 expression on CD8+ T cells with NDMM patients was significantly higher than that in normal controls (43·22 ± 2·98 versus 20·71 ± 1·08%; P < 0·001). However, there was no significant difference in PD-1 expression of CD4+ T cells and natural killer (NK) cells between the NDMM and NC groups. Additionally, the co-culture assays revealed that BMSCs significantly suppressed CD8+ T cell function. However, the PD-L1 inhibitor effectively reversed BMSC-mediated suppression in CD8+ T cells. We also found that the combination of PD-L1 inhibitor and pomalidomide can further enhance the killing effect of CD8+ T cells on MM cells. In summary, our findings demonstrated that BMSCs in patients with MM may induce apoptosis of CD8+ T cells through the PD-1/PD-L1 axis and inhibit the release of perforin and granzyme B from CD8+ T cells to promote the immune escape of MM.
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Affiliation(s)
- Z Liu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - F Mi
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - M Han
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - M Tian
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - L Deng
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - N Meng
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - J Luo
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
| | - R Fu
- Department of Hematology, Tianjin Medical University General Hospital, Tianjin, China
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Fan CB, Yan XH, Tian M, Zhang S, Liu JL, Sheng YX, Dong L, Zhang WL. Long non-coding RNA NEAT1 regulates Hodgkin's lymphoma cell proliferation and invasion via miR-448 mediated regulation of DCLK1. Eur Rev Med Pharmacol Sci 2021; 24:6219-6227. [PMID: 32572888 DOI: 10.26355/eurrev_202006_21518] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore whether long non-coding RNA nuclear enriched abundant transcript 1 (lncRNA NEAT1) could regulate Hodgkin's lymphoma (HL) cell proliferation and invasion through miR-448, which could target doublecortin like kinase 1 (DCLK1) and mediate DCLK1 expression. PATIENTS AND METHODS Expressions of NEAT1, miR-448 and DCLK1 were evaluated by qRT-PCR or Western blot assay. Cell Counting Kit-8 (CCK-8) and transwell assay were utilized to detect cell proliferation and invasion capability in L428 cells respectively. The target relationship between NEAT1, miR-448 and DCLK1 was confirmed by Luciferase reporter assay. RESULTS QRT-PCR results showed that NEAT1 expressed higher in HL tissues and cell lines than that in controls. In vitro experiments, NEAT1 downregulation could decrease cell proliferation and invasion capability in L428 cells. NEAT1 directly interacted with miR-448 and negatively regulated it. Moreover, DCLK1 was confirmed as a target of miR-448. DCLK1 expression was increased in L428 cells and positively regulated by NEAT1. NEAT1 overexpression upregulated the protein level of DCLK1 in L428 cells according to Western blot analysis. Additionally, DCLK1 overexpression could reverse the suppression on cell proliferation and invasion capability induced by NEAT1 knockdown or miR-448 overexpression. CONCLUSIONS NEAT1 might be contributed to HL progression by promoting cell proliferation and invasion capability via miR-448 mediated DCLK1 expression.
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Affiliation(s)
- C-B Fan
- Department of Hematology, Qingdao Hospital of Traditional Chinese Medicine (Qingdao Hiser Hospital), Qingdao, China.
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Li HX, Li XH, Jiang J, Shi PX, Zhang XG, Tian M. Effect of miR-26b on gestational diabetes mellitus in rats via PI3K/Akt signaling pathway. Eur Rev Med Pharmacol Sci 2021; 24:1609-1615. [PMID: 32141527 DOI: 10.26355/eurrev_202002_20335] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to explore the influence of micro ribonucleic acid (miR)-26b on gestational diabetes mellitus in rats via the phosphatidylinositol 3-hydroxy kinase/protein kinase B (PI3K/Akt) signaling pathway. MATERIALS AND METHODS A total of 60 healthy pregnant female rats were randomly divided into three groups, including group A (normal group), group B (model group), and group C (model + miR-26b group). The differences in fasting blood glucose (FBG), C-reactive protein (CRP), and phosphatidylinositol 3-hydroxy kinase/protein kinase B (PI3K/AKT) among the three groups were analyzed via serum CRP test, morphological observation, quantitative Reverse Transcription-Polymerase Chain Reaction (qRT-PCR), and Western blotting, respectively. RESULTS The levels of FBG ad CRP were significantly up-regulated in group B when compared with group A (p<0.01). Meanwhile, they increased significantly in group C when compared with group B (p<0.01). Rats in group A exhibited smooth and flat thoracic aortic intimas, as well as neatly arranged smooth muscle cells at the media layer. However, rats in group B showed fractured intimas with enlarged junction gaps, as well as necrotic and detached endothelial cells. Compared with group B, group C exhibited extremely poorly arranged cells at all the layers, rough and rugged intimas, larger areas of necrotic and detached endothelial cells, and markedly worsened lesions. QRT-PCR results indicated that the expression of phosphorylated-PI3K (p-PI3K) was significantly lower in group B than that of group A (p=0.04). Meanwhile, it was markedly lower in group C than that in group B (p=0.04). The expression of p-Akt was remarkably lower in group B than group A (p=0.04), which was also significantly lower in group C than group B (p=0.04). Compared with group A, the expressions of p-PI3K and p-Akt in the thoracic aorta of group B were evidently down-regulated (p<0.01). Furthermore, they decreased markedly in group C when compared with group B (p<0.01). CONCLUSIONS MiR-26b accelerates the progression of gestational diabetes by inhibiting the PI3K/Akt signaling pathway.
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Affiliation(s)
- H-X Li
- Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
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Wang Y, He Q, Tian M. Dexmedetomidine Relieves Myocardial Ischemia-Reperfusion Injury and Inhibits Apoptosis in Rats via the Janus Kinase 2/Signal Transducers and Activators of Transcription 3 Signaling Pathway. Indian J Pharm Sci 2021. [DOI: 10.36468/pharmaceutical-sciences.851] [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: 11/22/2022] Open
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Zhang X, Liu H, Xing X, Tian M, Hu X, Liu F, Feng J, Chang S, Liu P, Zhang H. Ionizing radiation induces ferroptosis in splenic lymphocytes of mice. INT J RADIAT RES 2021. [DOI: 10.29252/ijrr.19.1.99] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Nguyen HGT, Sims CM, Toman B, Horn J, van Zee RD, Thommes M, Ahmad R, Denayer JFM, Baron GV, Napolitano E, Bielewski M, Mangano E, Brandani S, Broom DP, Benham MJ, Dailly A, Dreisbach F, Edubilli S, Gumma S, Möllmer J, Lange M, Tian M, Mays TJ, Shigeoka T, Yamakita S, Hakuman M, Nakada Y, Nakai K, Hwang J, Pini R, Jiang H, Ebner AD, Nicholson MA, Ritter JA, Farrando-Pérez J, Cuadrado-Collados C, Silvestre-Albero J, Tampaxis C, Steriotis T, Řimnáčová D, Švábová M, Vorokhta M, Wang H, Bovens E, Heymans N, De Weireld G. A reference high-pressure CH4 adsorption isotherm for zeolite Y: results of an interlaboratory study. ADSORPTION 2020. [DOI: 10.1007/s10450-020-00253-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractThis paper reports the results of an international interlaboratory study led by the National Institute of Standards and Technology (NIST) on the measurement of high-pressure surface excess methane adsorption isotherms on NIST Reference Material RM 8850 (Zeolite Y), at 25 °C up to 7.5 MPa. Twenty laboratories participated in the study and contributed over one-hundred adsorption isotherms of methane on Zeolite Y. From these data, an empirical reference equation was determined, along with a 95% uncertainty interval (Uk=2). By requiring participants to replicate a high-pressure reference isotherm for carbon dioxide adsorption on NIST Reference Material RM 8852 (ZSM-5), this interlaboratory study also demonstrated the usefulness of reference isotherms in evaluating the performance of high-pressure adsorption experiments.
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Liu X, Wang B, Wang X, Tian M, Wang X, Zhang Y. Elevated plasma high-sensitivity C-reactive protein at admission predicts the occurrence of post-stroke fatigue at 6 months after ischaemic stroke. Eur J Neurol 2020; 27:2022-2030. [PMID: 32633437 DOI: 10.1111/ene.14430] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 06/30/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND PURPOSE Post-stroke fatigue (PSF) is a common neuropsychiatric affective symptom occurring after stroke. Evidence indicates activated inflammatory pathways are involved in modulating the stroke and fatigue. High-sensitivity C-reactive protein (hs-CRP) is one of the most sensitive indicators of inflammation. Our aim was to estimate the association between plasma hs-CRP and PSF after acute ischaemic stroke. METHODS In all, 212 acute ischaemic stroke patients were consecutively recruited within the first 14 days after stroke onset and followed up for 6 months. Plasma hs-CRP levels were assayed by enzyme linked immunosorbent assay. Fatigue severity was assessed using the Fatigue Scale for Motor and Cognitive Functions. A score ≥ 43 is defined as PSF. RESULTS Sixty-eight stroke patients (32.1%) were diagnosed with PSF at 6 months' follow-up. In the patients with PSF, plasma hs-CRP levels were significantly higher compared with those in non-PSF patients (t = -8.524, P ≤ 0.001). In multivariate analyses, plasma levels of hs-CRP were independently associated with PSF at 6 months (odds ratio 3.435, 95% confidence interval 2.222-5.309; P ≤ 0.001) after adjusting other recorded variables. Based on the receiver operating characteristic curve, the optimal cut-off value of plasma hs-CRP levels as an indicator for the prediction of PSF was projected to be 0.52 mg/dl, which yielded a sensitivity of 77.9% and a specificity of 74.3%, with the area under the curve 0.794 (95% confidence interval 0.725-0.864; P ≤ 0.001). CONCLUSION Elevated plasma hs-CRP levels at admission were associated with PSF 6 months after stroke, suggesting that these alterations might predict the development of PSF in stroke patients.
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Affiliation(s)
- X Liu
- Department of Neurology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - B Wang
- Department of Neurology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - X Wang
- Department of Neurology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - M Tian
- Department of Neurology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - X Wang
- Department of Neurology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Zhang
- Department of Emergency, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Peng K, Yang M, Tian M, Chen M, Zhang J, Wu X, Ivers R, Si L. Cost-effectiveness of a multidisciplinary co-management program for the older hip fracture patients in Beijing. Osteoporos Int 2020; 31:1545-1553. [PMID: 32219498 DOI: 10.1007/s00198-020-05393-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Accepted: 03/16/2020] [Indexed: 10/24/2022]
Abstract
UNLABELLED The multidisciplinary co-management program for geriatric patients with hip fracture is cost-effective in the Chinese population and it has the potential to be scaled up in China. INTRODUCTION The study aimed to investigate the cost-effectiveness of a multidisciplinary co-management program for patients with hip fracture in China. METHODS Hip fracture patients who were admitted to an orthopedic hospital in Beijing were included in the multidisciplinary co-management program. The cost-effectiveness of intervention was evaluated compared to the conventional management. A Markov microsimulation model was developed to simulate lifetime costs and effectiveness. Costs including intervention, hospitalization, medications, and long-term care costs were expressed using 2019 US dollars and the healthcare perspective was adopted. Effectiveness was evaluated using both 1-year mortality-averted and quality-adjusted life years (QALYs). Costs and effectiveness were discounted at 5% per annum. The willingness-to-pay (WTP) threshold was set at $26,481 per QALY gained which was three times gross domestic product (GDP) per capita in China. One-way and probabilistic sensitivity analyses were conducted. RESULTS The lifetime cost for the conventional management (n = 1839) and intervention group (n = 1192) was $11,975 and $13,309 respectively. The lifetime QALYs were 2.38 and 2.45 years and the first-year mortality was 17.8% and 16.1%. The incremental cost-effectiveness ratio was $19,437 per QALY gained or $78,412 per 1-year mortality-averted. Given the Chinese WTP threshold, the intervention had a 78% chance being cost-effective. The cost-effectiveness of the intervention was sensitive to cost of intervention and the proportion of patients who underwent surgery within 48 h. CONCLUSIONS The multidisciplinary co-management program for patients with hip fracture is cost-effective and it has the potential to be scaled up in the Chinese population.
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Affiliation(s)
- K Peng
- School of Public Health, The University of Sydney, Sydney, Australia
- The George Institute for Global Health, University of New South Wales, Level 5, 1 King St, Newtown, NSW, 2042, Australia
| | - M Yang
- Department of Orthopedic and Traumatology, Beijing Jishuitan Hospital, Beijing, China
| | - M Tian
- The George Institute for Global Health, University of New South Wales, Level 5, 1 King St, Newtown, NSW, 2042, Australia
- The George Institute for Global Health at Peking University Health Science Center, Beijing, China
| | - M Chen
- School of Health Policy & Management, Nanjing Medical University, Nanjing, China
| | - J Zhang
- The George Institute for Global Health at Peking University Health Science Center, Beijing, China
- School of Public Health and Community Medicine, UNSW, Kensington, Australia
| | - X Wu
- Department of Orthopedic and Traumatology, Beijing Jishuitan Hospital, Beijing, China
| | - R Ivers
- School of Public Health, The University of Sydney, Sydney, Australia
- The George Institute for Global Health, University of New South Wales, Level 5, 1 King St, Newtown, NSW, 2042, Australia
- School of Public Health and Community Medicine, UNSW, Kensington, Australia
| | - L Si
- The George Institute for Global Health, University of New South Wales, Level 5, 1 King St, Newtown, NSW, 2042, Australia.
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Peng K, Yao P, Yang L, Kartsonaki C, Bennett D, Tian M, Guo Y, Bian Z, Chen Y, Chen Z, Woodward M, Ivers R, Clarke R. Parenthood and risk of hip fracture: a 10-year follow-up prospective study of middle-aged women and men in China. Osteoporos Int 2020; 31:783-791. [PMID: 31768588 PMCID: PMC7075818 DOI: 10.1007/s00198-019-05185-2] [Citation(s) in RCA: 5] [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: 04/17/2019] [Accepted: 10/01/2019] [Indexed: 12/02/2022]
Abstract
This prospective study of Chinese adults demonstrated an inverse J-shaped association of number of children with risk of hip fracture in both men and postmenopausal women aged 50 years or older. Women with 2 or 3 children and men with 4 children had the lowest risk of hip fracture. INTRODUCTION Women have higher absolute risks of fracture than men, which is believed to reflect differences in oestrogen exposure. The aim of this study was to compare the associations of number of children with risk of hip fracture between men and women aged over 50 years. METHODS The China Kadoorie Biobank (CKB) recruited 133,399 women and 110,296 men, aged 50 years or older between 2004 and 2008. During 10-year follow-up, 2068 participants (1394 women and 674 men) suffered a hip fracture. Cox regression analysis was used to estimate sex-specific adjusted hazard ratios (HRs) and 95% CI for incident hip fracture. RESULTS Over 98% of both subsets of men and women aged 50 or older reported having children. Women who had 2 or 3 children had the lowest risks of hip fracture compared with other groups. Compared with nulliparous women, the adjusted HR for hip fracture were 0.89 (95% CI; 0.72, 1.10) for 1 child, 0.79 (0.70, 0.90) for 2 children, 0.79 (0.72, 0.87) for 3 children, 0.81 (0.72, 0.91) for 4 children, and 0.95 (0.83, 1.10) for those with 5 or more children. The associations of number of children with hip fracture were broadly consistent in men of a similar age. CONCLUSIONS The concordant effects of the number of children with risk of hip fracture between men and women suggest that the lower risks in multiparous women are not due to differences in oestrogen exposure or other biological effects, but may reflect residual confounding by socioeconomic or lifestyle factors.
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Affiliation(s)
- K Peng
- School of Public Health, The University of Sydney, Sydney, Australia
- The George Institute for Global Health, UNSW, Sydney, Australia
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - P Yao
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - L Yang
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - C Kartsonaki
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - D Bennett
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - M Tian
- The George Institute for Global Health, UNSW, Sydney, Australia
- The George Institute for Global Health at Peking University Health Science Center, Beijing, China
| | - Y Guo
- Chinese Academy of Medical Sciences, Beijing, China
| | - Z Bian
- Chinese Academy of Medical Sciences, Beijing, China
| | - Y Chen
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - Z Chen
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - M Woodward
- The George Institute for Global Health, UNSW, Sydney, Australia
- The George Institute for Global Health, Oxford University, Oxford, UK
- Department of Epidemiology, Johns Hopkins University, Baltimore, MD, USA
| | - R Ivers
- School of Public Health, The University of Sydney, Sydney, Australia
- The George Institute for Global Health, UNSW, Sydney, Australia
- School of Public Health and Community Medicine, UNSW, Sydney, Australia
| | - R Clarke
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK.
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Peng K, Yao P, Yang L, Kartsonaki C, Bennett D, Tian M, Guo Y, Bian Z, Chen Y, Chen Z, Woodward M, Ivers R, Clarke R. Publisher Correction: Parenthood and risk of hip fracture: a 10-year follow-up prospective study of middle-aged women and men in China. Osteoporos Int 2020; 31:793. [PMID: 32047950 PMCID: PMC7645435 DOI: 10.1007/s00198-019-05272-4] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The original version of this article, published on 25 November 2019, unfortunately contained a mistake.
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Affiliation(s)
- K Peng
- School of Public Health, The University of Sydney, Sydney, Australia
- The George Institute for Global Health, UNSW, Sydney, Australia
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - P Yao
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - L Yang
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - C Kartsonaki
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - D Bennett
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - M Tian
- The George Institute for Global Health, UNSW, Sydney, Australia
- The George Institute for Global Health at Peking University Health Science Center, Beijing, China
| | - Y Guo
- Chinese Academy of Medical Sciences, Beijing, China
| | - Z Bian
- Chinese Academy of Medical Sciences, Beijing, China
| | - Y Chen
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - Z Chen
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK
| | - M Woodward
- The George Institute for Global Health, UNSW, Sydney, Australia
- The George Institute for Global Health, Oxford University, Oxford, UK
- Department of Epidemiology, Johns Hopkins University, Baltimore, MD, USA
| | - R Ivers
- School of Public Health, The University of Sydney, Sydney, Australia
- The George Institute for Global Health, UNSW, Sydney, Australia
- School of Public Health and Community Medicine, UNSW, Sydney, Australia
| | - R Clarke
- Clinical Trial Service Unit and Epidemiological Studies Unit, Big Data Institute, University of Oxford, Old Road Campus, Oxford, OX3 7LF, UK.
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Tian M, Liu S, Liu L, Zhang EK, Wang HW, Deng Y, Yue YK. Correlations of the severity of diabetic retinopathy with EPO, Caspase-3 expression and oxidative stress. Eur Rev Med Pharmacol Sci 2019; 23:9707-9713. [PMID: 31799636 DOI: 10.26355/eurrev_201911_19532] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the relationships of the severity of diabetic retinopathy with erythropoietin (EPO), Caspase-3 expression, and oxidative stress. PATIENTS AND METHODS A total of 20 patients with non-proliferative diabetic retinopathy hospitalized from January 2017 to January 2018 were enrolled as observation group 1, 20 patients with proliferative diabetic retinopathy were chosen as observation group 2, and 20 patients with idiopathic macular hole were selected as control group. After admission, patients received all necessary examinations and underwent vitrectomy during which vitreous and retinal tissues were taken, and venous blood was collected. Then, the content of EPO, Caspase-3, nitric oxide (NO), and malondialdehyde (MDA) was detected through enzyme-linked immunosorbent assay (ELISA), the messenger ribonucleic acid (mRNA) levels of EPO, Caspase-3, NO, and MDA were measured via quantitative Polymerase Chain Reaction (qPCR), and the severity of diabetic retinopathy was evaluated by diabetic retinopathy grading score. RESULTS Observation group 1 and 2 had significantly decreased the content of EPO (p<0.05) and overtly increased Caspase-3, NO, and MDA content (p<0.05) in comparison with control group. Compared with those in observation group 1, the EPO content was clearly lowered in observation group 2 (p<0.05), and the content of Caspase-3, NO, and MDA was evidently elevated (p<0.05). The diabetic retinopathy grading score was remarkably lower in control group than that in both observation group 1 and observation group 2 (p p<0.05), and it was significantly enhanced in observation group 2 compared with that in observation group 1 (p<0.05). Correlation analysis showed that the EPO content was negatively correlated with the severity of diabetic retinopathy, while the content of Caspase-3, NO, and MDA was positively related to the severity of diabetic retinopathy. CONCLUSIONS The severity of diabetic retinopathy has a negative association with EPO and positive correlations with Caspase-3, NO, and MDA content.
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Affiliation(s)
- M Tian
- Department of Ophthalmology, Fuxing Hospital, Capital Medical University, Beijing, China.
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Pang GF, Cao YZ, Fan CL, Zhang JJ, Li XM, MacNeil JD, Bo HB, Chen JH, Chu XG, Fang XM, Guggisberg D, Gupta RC, Hudecova T, Jia X, Kennedy G, Lin AQ, Lin F, Lin HD, Ling YC, Ma ZD, Nan Z, One Y, Qin Y, Quiroga MA, Sharman M, Song WB, Soraci AL, Tang FB, Tekel J, Tian M, Uscinas R, Wang FC, Xu H, Zhou L, Zhou W, Zhou XP, Zhu GN. Determination of Clopidol Residues in Chicken Tissues by Liquid Chromatography: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/86.4.685] [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] [Indexed: 11/14/2022]
Abstract
Abstract
Eighteen laboratories participated in a collaborative study on the determination of clopidol residues in chicken muscle tissues by liquid chromatography. Of these, results from 16 laboratories which rigorously followed the method were subjected to statistical analysis. The method performance was assessed by all participants using 14 samples of chicken muscle fortified at concentrations ranging from 0.1 to 5.0 mg/kg. In addition, 9 participants each reported results for 6 clopidol-incurred samples in chicken muscle. Test portions were extracted with acetonitrile, and the extracts were purified with alumina and anion exchange resin solid-phase extraction cartridges in sequence. Clopidol was separated by reversed-phase liquid chromatography and quantified at 270 nm. Average recoveries ranged from 81.8 to 85.4%, reproducibility relative standard deviation (RSDR) ranged from 11.9 to 22.6%, and repeatability relative standard deviation (RSDr) ranged from 9.9 to 15.1%. For clopidol-incurred samples at concentrations of 0.100–0.687 mg/kg, the mean determination value range was 0.099–0.659 mg/kg; RSDR was 12.6–19.8%, RSDr was 3.1–8.5%; and HORRAT values were 0.7–1.1. The accuracy and precision of the method are in conformity with the requirements specified by AOAC INTERNATIONAL. The method was adopted Official First Action in April 2003.
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Affiliation(s)
- Guo-Fang Pang
- Qinhuangdao Entry-Exit Inspection and Quarantine Bureau, No. 39 Haibin Rd, Qinhuangdao, Hebei, P.C. 066002, People's Republic of China
| | - Yan-Zhong Cao
- Qinhuangdao Entry-Exit Inspection and Quarantine Bureau, No. 39 Haibin Rd, Qinhuangdao, Hebei, P.C. 066002, People's Republic of China
| | - Chun-Lin Fan
- Qinhuangdao Entry-Exit Inspection and Quarantine Bureau, No. 39 Haibin Rd, Qinhuangdao, Hebei, P.C. 066002, People's Republic of China
| | - Jin-Jie Zhang
- Qinhuangdao Entry-Exit Inspection and Quarantine Bureau, No. 39 Haibin Rd, Qinhuangdao, Hebei, P.C. 066002, People's Republic of China
| | - Xue-Min Li
- Qinhuangdao Entry-Exit Inspection and Quarantine Bureau, No. 39 Haibin Rd, Qinhuangdao, Hebei, P.C. 066002, People's Republic of China
| | - James D MacNeil
- Canadian Food Inspection Agency, Centre for Veterinary Drug Residues, Saskatoon Laboratory, 116 Veterinary Rd, Saskatoon, SK, Canada S7N 2R3
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Dong JY, Gong JH, Ji XY, Tian M, Liu YK, Qing C, Lu SL, Song F. [Preliminary evaluation and mechanism of adipose-derived stem cell transplantation from allogenic diabetic rats in the treatment of diabetic rat wounds]. Zhonghua Shao Shang Za Zhi 2019; 35:645-654. [PMID: 31594182 DOI: 10.3760/cma.j.issn.1009-2587.2019.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate whether adipose-derived stem cells (ASCs) from allogeneic diabetic rats can promote wound healing in diabetic rats or not and the mechanism. Methods: (1) Fifty-six male Wistar rats aged 12-16 weeks were divided into diabetic group and healthy group according to the random number table (the same grouping method below), with 28 rats in each group. Rats in healthy group were not treated with any treatment. Rats in diabetic group were injected with 10 g/L streptozotocin 60 mg/kg intraperitoneally in one time to establish the diabetic model. Four rats in diabetic group and 4 rats in healthy group were selected according to the random number table, and the adipose tissue in the inguinal region was taken to culture and purify ASCs, so as to obtain healthy rat-derived ASCs (hereinafter referred to as nASCs) and diabetic rat-derived ASCs (hereinafter referred to as dASCs). The third passage of nASCs (n=3) and dASCs (n=3) were taken, and the positive expression rates of cell surface differentiation antigens CD105, CD31, CD34, and CD44 were detected with flow cytometer for defining ASCs purity. (2) The rest 24 rats in healthy group and 24 rats in diabetic group were used to make three round full-thickness skin defect wounds with a diameter of 12 mm on the back of each rat. Immediately after injury, phosphate buffer saline (PBS), nASCs of 2×10(7)/mL, and dASCs of 2×10(7)/mL each in the volume of 0.5 mL were subcutaneously injected into three wounds and their margins of each rat, respectively. On post injury day (PID) 1, 3, 7, and 12, 6 rats in each group were selected according to the random number table to calculate the wound area, and the wound tissue was stained with hematoxylin-eosin to observe the histological morphology of the wound. (3) Human ASCs (hASCs) were subcultured, and the 4th to 7th passage of cells were used for the subsequent experiments. The hASCs were divided into 7 groups, with 12 samples in each group. Cells in blank control group were cultured with mesenchymal stem cell culture medium, and cells in simple advanced glycation end products (AGEs) group, simple protein group, simple high glucose group, simple high osmotic pressure group, AGEs-high glucose combination group, and protein-high osmotic pressure combination group were cultured with mesenchymal stem cell culture medium containing a final mass concentration of 100 mg/L AGEs, 100 mg/L bovine serum albumin (BSA), 28 mmol/L D-glucose, 28 mmol/L mannitol, 100 mg/L AGEs+ 28 mmol/L D-glucose, 100 mg/L BSA+ 28 mmol/L mannitol, respectively. Cell proliferation was detected by cell counting kit 8 at post culture hour (PCH) 2 and on post culture day (PCD) 2, 4 and 6. (4) The hASCs were divided into blank control group, simple AGE group, simple high glucose group, and AGE-high glucose combination group, with 12 samples in each group, which were treated the same as corresponding groups in experiment (3). On PCD 0, 2, 4, and 6, the positive expression rates of cell surface differentiation antigens CD105, CD44, and CD45 were detected by flow cytometer to estimate their homeostasis. (5) The hASCs were divided into AGE-high glucose combination group and protein-high osmotic pressure combination group, with 9 samples in each group, which were treated the same as corresponding groups in experiment (3). On PCD 2, 4, and 6, the expression of intracellular protein was detected by cyanine 3-streptavidin double-antibody sandwich technique. Data were processed with analysis of variance for factorial design, least significant difference test, and Bonferroni correction. Results: (1) The positive expression rates of CD44 in nASCs and dASCs were both higher than 96%, the positive expression rates of CD31 and CD34 were low, and the positive expression rates of CD105 were about 40%, which basically met the purity requirements. (2) The areas of wounds treated by three methods in rats of healthy group and diabetic group were similar on PID 1 (P>0.05). In healthy group, compared with (0.682 1±0.078 9), (0.314 3±0.113 7), and (0.064 3±0.002 1) cm(2) of the PBS-treated wounds in rats, the area of nASCs-treated wounds in rats decreased significantly on PID 3, 7, and 12 [(0.464 1±0.092 6), (0.223 9±0.072 7), and (0.034 3±0.012 5) cm(2), P<0.05], the area of dASCs-treated wounds in rats decreased significantly on PID 3 and 12 [(0.514 1±0.124 1) and (0.043 7±0.032 8) cm(2), P<0.05] but was not obviously changed on PID 7 [(0.274 2±0.062 5) cm(2), P>0.05]. Compared with those of the dASCs-treated wounds of rats within the same group, the area of the nASCs-treated wounds of rats in healthy group decreased significantly on PID 3 and 7 (P<0.05) but was not obviously changed on PID 12 (P>0.05). In diabetic group, compared with (0.853 5±0.204 8), (0.670 5±0.164 8), and (0.131 4±0.074 4) cm(2) of the PBS-treated wounds in rats, the area of nASCs-treated wounds in rats decreased significantly on PID 3, 7, and 12 [(0.633 4±0.132 5), (0.331 8±0.023 5), and (0.074 2±0.003 8) cm(2), P<0.05], the area of dASCs-treated wounds in rats decreased significantly on PID 3 [(0.773 6±0.182 2) cm(2), P<0.05] but was not obviously changed on PID 7 and 12 [(0.510 6±0.192 2) and (0.114 4±0.003 1) cm(2), P>0.05]. Compared with the dASCs-treated wounds of rats within the same group, the area of the nASCs-treated wounds of rats in diabetic group was not obviously changed on PID 3 and 7 (P>0.05) but decreased significantly on PID 12 (P<0.05). There was no obvious difference in histological morphology of the wounds treated with three methods in rats of each group on PID 1. On PID 3, a small amount of microvessels were formed in the wounds treated with nASCs and dASCs of rats in both groups, but microvessel formation was almost undetected in the PBS-treated wounds. On PID 7, more small blood vessels and fibroblasts (Fbs) were observed in the wounds treated with nASCs and dASCs of rats in both groups, but the small blood vessels and Fbs were slightly less in the PBS-treated wounds. On PID 12, the wounds treated with nASCs and dASCs of rats in the two groups were covered by epithelial tissue, the granulation tissue in the PBS-treated wounds of rats in healthy group was not obvious, and the PBS-treated wounds of rats in diabetic group were not completely epithelialized. (3) Compared with those of blank control group, the cell number of hASCs in simple AGEs group decreased significantly on PCD 2, 4, and 6 (P<0.05), which increased significantly on PCD 2 and 4 in simple high glucose group (P<0.05), and that in AGEs-high glucose combination group decreased significantly on PCD 4 and 6 (P<0.05). (4) Compared with that on PCD 4 within the same group, the positive expression rate of CD105 in hASCs decreased significantly in blank control group, simple AGEs group, and AGEs-high glucose combination group on PCD 6 (P<0.05). The positive expression rate of CD44 was higher than 95%, and that of CD45 was less than 2% in hASCs of each group at each time point. (5) Detection values of 7 proteins were located in the confidence interval. The expression levels of basic fibroblast growth factor and tissue inhibitor of metalloproteinase-1 in hASCs of AGEs-high glucose combination group and protein-high osmotic pressure combination group showed increasing trend with the prolongation of culture time. The expression level of human monocyte chemoattractant protein 1 (MCP-1) in hASCs of AGEs-high glucose combination group showed increasing trend with the prolongation of culture time, while the expression level of growth-regulated oncogene (GRO) on PCD 6 was significantly higher than that on PCD 4 within the same group (P<0.05); the expression levels of MCP-1 and GRO in hASCs of protein-high osmotic pressure combination group showed decreasing trend with the prolongation of culture time. The expression level of follistatin in hASCs of protein-high osmotic pressure combination group decreased obviously on PCD 4, while that in hASCs of AGEs-high glucose combination group was significantly lower on PCD 6 than that on PCD 4 (P<0.05). The expression level of vascular endothelial growth factor (VEGF) in hASCs of protein-high osmotic pressure combination group decreased gradually with the prolongation of culture time, while that in hASCs of AGEs-high glucose combination group on PCD 4 decreased significantly as compared with that on PCD 2 (P<0.05). The expression level of urokinase-type plasminogen activator receptor in hASCs of protein-high osmotic pressure combination group on PCD 6 was significantly higher than that on PCD 4 within the same group (P<0.05) and that of AGEs-high glucose combination group on PCD 6 (P<0.05). Conclusions: Both nASCs and dASCs can promote wound healing in rats with simple defect injury, but dASCs have no significant effect on wound healing in rats with diabetes mellitus, which may be related to the inhibition of ASCs proliferation and the influence of high glucose and AGEs intervention on their homeostasis and secretory function.
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Affiliation(s)
- J Y Dong
- Wound Repair Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - J H Gong
- Department of Orthopaedics, United Family Healthcare, Shanghai 200336, China
| | - X Y Ji
- Wound Repair Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - M Tian
- Wound Repair Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y K Liu
- Wound Repair Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - C Qing
- Wound Repair Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - S L Lu
- Wound Repair Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - F Song
- Wound Repair Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Liu P, Tian M, Wei L, Cao GH, Zhang SF, Liu CH. [A case of minimal-change nephrotic syndrome complicated with thyroid carcinoma in children]. Zhonghua Er Ke Za Zhi 2019; 57:714-715. [PMID: 31530360 DOI: 10.3760/cma.j.issn.0578-1310.2019.09.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Affiliation(s)
- P Liu
- Department of Nephrology and Rheumatology, Children's Hospital Affiliated to Zhengzhou University, Henan Provincial Children's Hospital and Zhengzhou Children's Hospital, Zhengzhou, 450018, China
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Dong W, Xiao YR, Wu MJ, Jiang DY, Nie LJ, Liu YK, Tang JJ, Tian M, Wang CL, Huang LF, Dong JY, Cao XZ, Song F, Ji XY, Ma X, Kang YT, Jin SW, Qing C, Lu SL. [Thoughts and principles of diagnosis and treatment of chronic refractory wounds in China]. Zhonghua Shao Shang Za Zhi 2019; 34:868-873. [PMID: 30585050 DOI: 10.3760/cma.j.issn.1009-2587.2018.12.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The correct thoughts and principles of diagnosis and treatment of chronic refractory wounds need to be formulated. Through the relevant domestic and international consensus and based on clinical experience, the Thoughts and principles of diagnosis and treatment of chronic refractory wounds in China is proposed. It is considered that in the diagnosis and treatment of chronic refractory wounds, in the case of fully understanding the patient's medical history, the following thoughts and principles should be complied in order. (1) Pay attention to the cleanliness of the wound after being cleaned. (2) Reasonably perform debridement to avoid being " excessive" or " not thorough". (3) Reasonably perform examination, diagnosis, and differential diagnosis of pathogenic factors. (4) Treat according to etiology. (5) Find comorbidities and prevent adverse outcomes. (6) Select the correct wound treatment method reasonably and timely. When the conservative wound care treatment is considered, pay attention to embodying the concept of etiological treatment, treat the wound according to the principles of safety, phase, selectivity, and effectiveness, and make a reasonable choice of continuing conservative treatment or surgical treatment in time after completing the preparation of the wound bed. When surgical treatment is considered, pay attention to the selection of reasonable surgical method and donor site, pay attention to the healing rate of surgical wound site and the outcome of donor site, and give reasonable protection to the wound site after surgery. (7) Carry out rehabilitation treatment after wound healing and related health education.
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Affiliation(s)
- W Dong
- Wound Repair Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Su K, Tian M, Xue FS. Subglottic airway injury caused by difficult tracheal tube passage. A reply. Anaesthesia 2018; 73:1292. [PMID: 30216425 DOI: 10.1111/anae.14440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- K Su
- Beijing Friendship Hospital, Beijing, China
| | - M Tian
- Beijing Friendship Hospital, Beijing, China
| | - F S Xue
- Beijing Friendship Hospital, Beijing, China
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Abstract
Previous studies have demonstrated that revision of total hip arthroplasty consumes considerably more resources than the primary procedure. Worse, patients who need revision procedures are more likely to have radiographic evidence of acetabular and femoral bone loss than those undergone primary total hip arthroplasty. Many techniques have been introduced to manage different conditions of acetabular deficiencies. We describe a rare case of a 67-year-old man with severe acetabular bone loss, which was caused by a long-term loose acetabular component and was successfully managed by cup-on-cup technique. We also discuss the similarities and differences between cup-on-cup and cup-in-cup techniques in the management of protrusio acetabular defects, with a case-based approach.
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Affiliation(s)
- X-D Wu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - W Xu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - M Tian
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - Q Cheng
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - W Huang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University , Chongqing , China
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Zou Y, Shao L, Tian M, Zhang Y, Liu F. Determination of the maximum tolerated dose of intranasal sufentanil and midazolam in Chinese: a pilot study. Acta Anaesthesiol Scand 2018; 62:773-779. [PMID: 29377056 DOI: 10.1111/aas.13081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 01/05/2018] [Accepted: 01/08/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND The purpose of this study was to determine the maximum tolerated dose (MTD, the dose of causing 10% respiratory depression) of intranasal sufentanil (SUF) and midazolam (MID) for sedation during gastroscopy by continual reassessment method (CRM). METHODS Patients (18-65 years old) scheduled for gastroscopy were recruited in this study. Subjects received intranasal SUF and MID for sedation. The dose of MID (5 mg) was fixed, while the dose of SUF was increased progressively (six incremental doses ranging from 0-0.60 μg/kg, n = 3 for each dose). The first cohort received a conservative, predetermined dose of 5 mg MID and 0 μg/kg SUF, subsequent cohorts received doses of SUF that were determined by the responses of all previous patients using Bayesian-based software. The dose allocated to the next cohort is the one with an updated posterior response probability closest to 10%. RESULTS Thirty Chinese patients scheduled for gastroscopy were included. Probability of respiratory depression at each dose was as follows: 5 mg MID + 0 μg/kg SUF, 0.4%; 5 mg MID + 0.1 μg/kg SUF, 0.8%; 5 mg MID + 0.2 μg/kg SUF, 1.8%; 5 mg MID + 0.3 μg/kg SUF, 3.7%; 5 mg MID + 0.4 μg/kg SUF, 9.9%; 5 mg MID + 0.5 μg/kg SUF, 17.8%; 5 mg MID + 0.6 μg/kg SUF, 36.0%. CONCLUSION The MTD of intranasal MID and SUF for sedation during gastroscopy causing 10% respiratory depression is 5 mg MID + 0.4 μg/kg SUF, based on CRM.
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Affiliation(s)
- Y. Zou
- Department of Anesthesiology; Beijing Friendship Hospital; Capital Medical University; Beijing China
| | - L. Shao
- Department of Anesthesiology; Beijing Friendship Hospital; Capital Medical University; Beijing China
| | - M. Tian
- Department of Anesthesiology; Beijing Friendship Hospital; Capital Medical University; Beijing China
| | - Y. Zhang
- Department of Anesthesiology; Beijing Friendship Hospital; Capital Medical University; Beijing China
| | - F. Liu
- Department of Anesthesiology; Beijing Friendship Hospital; Capital Medical University; Beijing China
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Tian M, He X, Wang W, Liu D, Meng Q. Differential microRNA expression profiling and target gene prediction in the muscle tissues of clenbuterol-fed Chinese miniature swine. ACTA AGR SCAND A-AN 2017. [DOI: 10.1080/09064702.2017.1332094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- M. Tian
- Postdoctoral Research Workstation, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
- College of Biology, China Agricultural University (CAU), Beijing, People’s Republic of China
| | - X. He
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - W. Wang
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - D. Liu
- Institute of Animal Husbandry, Heilongjiang Academy of Agricultural Sciences, Harbin, People’s Republic of China
| | - Q. Meng
- College of Biology, China Agricultural University (CAU), Beijing, People’s Republic of China
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Yang YW, Yu F, Zhang HC, Dong Y, Qiu YN, Jiao Y, Xing XD, Tian M, Huang L, Chen JH. Physicochemical properties and cytotoxicity of an experimental resin-based pulp capping material containing the quaternary ammonium salt and Portland cement. Int Endod J 2017; 51:26-40. [PMID: 28375561 DOI: 10.1111/iej.12777] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 03/29/2017] [Indexed: 11/26/2022]
Abstract
AIM To evaluate in vitro the physicochemical properties, cytotoxicity and calcium phosphate nucleation of an experimental light-curable pulp capping material composed of a resin with antibacterial monomer (MAE-DB) and Portland cement (PC). METHODOLOGY The experimental material was prepared by mixing PC with a resin containing MAE-DB at a 2 : 1 ratio. Cured pure resin containing MAE-DB served as control resin. ProRoot MTA and Dycal served as commercial controls. The depth of cure, degree of monomer conversion, water absorption and solubility of dry samples, calcium release, alkalinizing activity, calcium phosphate nucleation and the cytotoxicity of materials were evaluated. Statistical analysis was carried out using anova followed by Tukey's HSD test (equal variance assumed) or Tamhane test (equal variance not assumed) and independent-samples t-tests. RESULTS The experimental material had a cure depth of 1.19 mm, and the mean degree of monomer conversion was 70.93% immediately post-cure and 88.75% at 24 h post-cure. The water absorption of the experimental material was between those of MTA and Dycal, and its solubility was significantly less (P < 0.05) than that of Dycal and higher than that of MTA. The experimental material exhibited continuous calcium release and an alkalinizing power between those of MTA and Dycal throughout the test period. Freshly set experimental material, control resin and all 24-h set materials had acceptable cytotoxicity. The experimental material, MTA and Dycal all exhibited the formation of apatite precipitates after immersion in phosphate-buffered saline. CONCLUSIONS The experimental material possessed adequate physicochemical properties, low cytotoxicity and good calcium phosphate nucleation.
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Affiliation(s)
- Y W Yang
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Military Area Command of Chinese PLA, Lanzhou, Gansu, China.,State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - F Yu
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - H C Zhang
- Department of Clinical Nursing, School of Nursing, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Y Dong
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Y N Qiu
- Department of Stomatology, Lanzhou General Hospital, Lanzhou Military Area Command of Chinese PLA, Lanzhou, Gansu, China
| | - Y Jiao
- Department of Stomatology, PLA Army General Hospital, Beijing, China
| | - X D Xing
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, China
| | - M Tian
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - L Huang
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi International Joint Research Center for Oral Diseases, Department of General Dentistry and Emergency, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
| | - J H Chen
- State Key Laboratory of Military Stomatology & National Clinical Research Centre for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, China
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Liu X, Wang B, Zhang X, Xiang J, Shi J, Tian M, Zhang A, Chang H, Qu K, Liu C, Yu L, Lv Y. Liver Transplantation Using Donation After Brain and Cardiac Death: A Single-Center Experience in China. Transplant Proc 2017; 48:1879-86. [PMID: 27569915 DOI: 10.1016/j.transproceed.2016.03.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 02/26/2016] [Accepted: 03/23/2016] [Indexed: 01/01/2023]
Abstract
BACKGROUND Liver transplantation (LTx) using donation after brain and cardiac death (DBCD) has increased steadily in China. The aims of this study were to evaluate the outcomes of DBCD LTx and to assess its feasibility to expand the donor pool. METHODS We retrospectively analyzed the clinical characteristics of DBCD donors and recipients, survival of allografts and recipients, and prognostic factors in DBCD LTx recipients from March 2010 to December 2014 in our institution. RESULTS DBCD LTx (n = 102) were performed in our institution during the research period, and the successful donation rate was 26.0%. Mean warm ischemia time and cold ischemia time were 14.39 minutes and 5.29 hours, respectively. The overall and biliary complication rates were 45.1% and 16.7%, respectively. Donor age (P = .043), intra-operative blood loss (P = .048), and operation time (P = .045) were significantly different between the complication and non-complication groups. The 1-, 2-, and 3-year survival rates of patients and grafts were 88.0%, 84.6%, 84.6%, and 85.7%, 78.6%, and 78.6%, respectively. The 1- and 2-year overall survival rates of hepatocellular carcinoma patients were 91.9% and 80.5%, respectively whereas the recurrence-free survival rates were 84.9% and 77.2%, respectively. The patient and graft survival rates were not statistically different between the <55-year and ≥55 year groups, but complication rate was higher in the older group than in the younger group (P = .003). CONCLUSIONS The outcome of DBCD LTx is favorable in our institution, with careful donor and recipient selection and careful peri-operative management. DBCD is an optimized solution for organ shortage in today's China.
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Affiliation(s)
- X Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China; Research Institute of Advanced Surgical Technology and Engineering, Xi'an Jiaotong University, Xi'an, PR China
| | - B Wang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China; Research Institute of Advanced Surgical Technology and Engineering, Xi'an Jiaotong University, Xi'an, PR China
| | - X Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China; Research Institute of Advanced Surgical Technology and Engineering, Xi'an Jiaotong University, Xi'an, PR China
| | - J Xiang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China; Research Institute of Advanced Surgical Technology and Engineering, Xi'an Jiaotong University, Xi'an, PR China
| | - J Shi
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China
| | - M Tian
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China
| | - A Zhang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China; Research Institute of Advanced Surgical Technology and Engineering, Xi'an Jiaotong University, Xi'an, PR China
| | - H Chang
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China
| | - K Qu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China
| | - C Liu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China
| | - L Yu
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China
| | - Y Lv
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, PR China; Research Institute of Advanced Surgical Technology and Engineering, Xi'an Jiaotong University, Xi'an, PR China.
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Lechpammer M, Tian M, Shahlaie K, Fereidouni F, Harmany ZT, Borowsky AD, Zagzag D, Levenson RM. P03.14 Validation of microscopy with ultraviolet surface excitation - MUSE - imaging of human primary and metastatic brain tumors. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.129] [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: 11/13/2022] Open
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Tian M, Yang SM, He H. [Multiple value and reference value range of brachial-ankle pulse wave velocity among Kailuan study population]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:1052-1053. [PMID: 28056238 DOI: 10.3760/cma.j.issn.0253-3758.2016.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Su K, Gao X, Xue FS, Ding GN, Zhang Y, Tian M. Difficult tracheal tube passage and subglottic airway injury during intubation with the GlideScope ® videolaryngoscope: a randomised, controlled comparison of three tracheal tubes. Anaesthesia 2016; 72:504-511. [PMID: 27995626 DOI: 10.1111/anae.13755] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/23/2016] [Indexed: 12/17/2022]
Abstract
Difficulty during placement of the tracheal tube is a known problem when intubating with the GlideScope® , which may lead to subglottic airway injury. This randomised, controlled clinical trial was designed to compare the resistance to passage of PVC (polyvinyl chloride), reinforced or BlockBuster tracheal tubes during intubation with the GlideScope. Secondary outcomes included the time taken to intubate and assessment of subglottic airway injury. One-hundred and seventy-seven patients were included in the data analysis. There was difficult tracheal tube passage (moderate or severe resistance) in 15 (21.4%) patients using the PVC tube compared with 4 (7.4%) and 1 (1.9%) using the reinforced and BlockBuster tubes, respectively (p = 0.003 for PVC vs. BlockBuster). The median (IQR [range]) time taken to intubate was 35 (27-45 [15-115]) s, 25 (20-27 [15-110]) s and 25 (22-30 [16-90]) s, respectively, (p < 0.001 for PVC vs. reinforced as well as PVC vs. BlockBuster). Subglottic airway injury, assessed using a fibreoptic bronchoscope after extubation, was higher with the PVC tube (p < 0.001) and the reinforced tube (p = 0.012) compared with the BlockBuster tube. We conclude that the BlockBuster tracheal tube is a better choice for orotracheal intubation with the GlideScope than PVC or reinforced tubes.
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Affiliation(s)
- K Su
- Department of Anaesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - X Gao
- Department of Anaesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - F-S Xue
- Department of Anaesthesiology, Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - G-N Ding
- Department of Anaesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Y Zhang
- Department of Anaesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - M Tian
- Department of Anaesthesiology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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Meador BM, Mirza KA, Tian M, Skelding MB, Reaves LA, Edens NK, Tisdale MJ, Pereira SL. The Green Tea Polyphenol Epigallocatechin-3-Gallate (EGCg) Attenuates Skeletal Muscle Atrophy in a Rat Model of Sarcopenia. J Frailty Aging 2016; 4:209-15. [PMID: 27031020 DOI: 10.14283/jfa.2015.58] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Sarcopenia-the loss of muscle mass and functionality occurring with age-is a pervasive problem with few effective treatments beyond exercise. We examined the ability of the green tea catechin, epigallocatechin-3-gallate (EGCg), to impact muscle mass and the molecular pathway involved in muscle atrophy in a rat model of sarcopenia. METHODS 20-month-old Sprague-Dawley rats were treated for 8 weeks with control diet or control plus 200mg/kg body weight of EGCg diet. RESULTS EGCg-supplemented animals had significantly greater gastrocnemius muscle mass than the aged controls, and showed a trend for increased muscle fiber cross-sectional areas (CSA) (p=0.06). These changes were associated with significantly lower protein expressions of the intramuscular 19S and 20S proteasome subunits and the MuRF1 and MAFbx ubiquitin ligases in the EGCg-treated animals. Proteasome activity as determined by 'Chymotrypsin-like' enzyme activity was also significantly reduced by EGCg. Muscle mRNA expression of IL-15 and IGF-1 were significantly increased in the EGCg group vs. the aged controls. In comparison to younger adult animals (6 month), the protein expression of 19S, 20S, MuRF1, MAFbx, and myostatin were increased between approximately 4- and 12-fold in the aged controls, but only up to ~2-fold in the aged EGCg animals. CONCLUSIONS EGCg supplementation was able to preserve muscle in sarcopenic rats, partly through attenuating protein degradation via the ubiquitin-proteasome pathway, together with increased expression of anabolic factors.
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Affiliation(s)
- B M Meador
- Suzette L. Pereira, Ph.D. Abbott Nutrition, Strategic R and D, RP4-3, 3300 Stelzer Road, Columbus, OH 43219, , Tel: 1-614-624-4625, Fax: 1-614-727-4625
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Tian M, Gong X, Rath S, Wei J, Yan LL, Lamb SE, Lindley RI, Sherrington C, Willett K, Norton R. Management of hip fractures in older people in Beijing: a retrospective audit and comparison with evidence-based guidelines and practice in the UK. Osteoporos Int 2016; 27:677-81. [PMID: 26267012 DOI: 10.1007/s00198-015-3261-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Accepted: 07/24/2015] [Indexed: 10/23/2022]
Abstract
UNLABELLED Despite the high burden of hip fracture in China, there is limited information on its management. This study investigated the management of hip fractures in a Beijing tertiary hospital and compared practice with that in 180 hospitals in the UK. The findings show a significant gap exists between the countries. INTRODUCTION The purpose of this study was to determine if the management of older people with hip fractures in a Beijing tertiary hospital is comparable with the UK best practice guidelines for hip fracture management and the UK National Hip Fracture Database 2012, obtained from 180 hospitals. METHODS A retrospective audit was undertaken in a large tertiary care hospital in Beijing. Data were compared with the National Hip Fracture Database 2012 collected in 180 hospitals in the UK on the proportion of patients managed according to the UK Blue Book standards. RESULTS Sixty-six percent of patients were admitted to an orthopaedic ward within 24 h of fracture, while 100 % of patients in the UK were admitted to an orthopaedic ward within 24 h of arrival to an accident and emergency department. Only 8 % of patients received surgery within 48 h of admission compared with 83 % in the UK; 10 % received no surgery compared with 2.5 % in the UK; and 27 % received orthogeriatrician assessment compared with 70 % in the UK. New pressure ulcers developed in 2 % of patients compared with 3.7 % of those in the UK; whereas, 0.3 % of patients were assessed for osteoporosis treatment and 3.8 % received falls assessment, and comparable figures for the UK were 94 and 92 %, respectively. CONCLUSIONS Significant gaps exist in hip fracture management in the Beijing hospital compared with the best practice achieved in 180 UK hospitals, highlighting the need to implement and evaluate proactive strategies to increase the uptake of best practice hip fracture care in China.
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Affiliation(s)
- M Tian
- The George Institute for Global Health, Peking University Health Science Center, Beijing, China
| | - X Gong
- Jishuitan Hospital, Beijing, China
| | - S Rath
- The George Institute for Global Health, Nuffield Department of Population Health, University of Oxford, Oxford, England, UK.
- Oxford Martin School, University of Oxford, 34 Broad Street, Oxford, OX1 3BD, UK.
| | - J Wei
- Jishuitan Hospital, Beijing, China
| | - L L Yan
- The George Institute for Global Health, Peking University Health Science Center, Beijing, China
| | - S E Lamb
- Kadoorie Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, England, UK
| | - R I Lindley
- The George Institute for Global Health, Sydney Medical School, University of Sydney, Sydney, Australia
| | - C Sherrington
- The George Institute for Global Health, Sydney Medical School, University of Sydney, Sydney, Australia
| | - K Willett
- Kadoorie Research Centre, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, England, UK
| | - R Norton
- The George Institute for Global Health, Nuffield Department of Population Health, University of Oxford, Oxford, England, UK
- The George Institute for Global Health, Sydney Medical School, University of Sydney, Sydney, Australia
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Abstract
The structure and catalytic applications of hexaaluminates.
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Affiliation(s)
- M. Tian
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese academy of Sciences
- PR China
| | - X. D. Wang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese academy of Sciences
- PR China
| | - T. Zhang
- State Key Laboratory of Catalysis
- Dalian Institute of Chemical Physics
- Chinese academy of Sciences
- PR China
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Ma J, Lu J, Huang H, Teng X, Tian M, Yu Q, Yuan X, Jing Y, Shi C, Li J, Fan X. Inhalation of recombinant adenovirus expressing granulysin protects mice infected with Mycobacterium tuberculosis. Gene Ther 2015; 22:968-76. [PMID: 26181627 DOI: 10.1038/gt.2015.73] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Revised: 06/22/2015] [Accepted: 07/08/2015] [Indexed: 11/09/2022]
Abstract
Granulysin is a cytolytic molecule with perforin and granzymes that is expressed by activated human CTLs, NK and γδ T cells, and it has broad antimicrobial activity, including to drug-sensitive and drug-resistant Mycobacterium tuberculosis. We hypothesized that approaches facilitating the expression of granulysin in M. tuberculosis-infected host cells in the lung may provide a novel treatment strategy for pulmonary TB. In this study, a recombinant replication-deficient adenovirus serotype 5-based rAdhGLi was constructed that expressed human granulysin in the cytosol of the U937 and RAW264.7 macrophage-like cell lines as confirmed by western blotting and co-localization technology using indirect immunofluorescence staining. Ninety-six hours after both cell lines were infected with M. tuberculosis, acid-fast staining and enumeration demonstrated that rAdhGLi-treated cells had a lower colony-forming units (CFU) of intracellular bacteria than culture medium or AdNull controls. Granulysin was only expressed in the lung and not in other organs following inhalation of rAdhGLi. In particular, immunocompetent BALB/c mice or SCID mice intranasally infected with ~200 CFU of virulent M. tuberculosis H37Rv intranasally were treated with rAdhGLi, and they showed decreased bacterial loads in the lung when compared with phosphate-buffered saline or AdNull controls. Importantly, a clear dose-dependent rAdhGLi treatment efficacy was found in infected BALB/c mice, with the most significant reduction in lung bacteria obtained in BALB/c mice treated with 10(9) plaque-forming units of rAdhGLi without any pathological changes. Our study indicates that rAdhGLi may be used as a novel and efficient treatment strategy with the capability to directly kill intracellular M. tuberculosis.
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Affiliation(s)
- J Ma
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - J Lu
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - H Huang
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - X Teng
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - M Tian
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - Q Yu
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - X Yuan
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - Y Jing
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - C Shi
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - J Li
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
| | - X Fan
- Department of Pathogen Biology, School of Basic Medicine, Huazhong University of Science and Technology, Wuhan, China
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Fang B, Zhang M, Tian M, Ren FZ. Self-assembled β-lactoglobulin-oleic acid and β-lactoglobulin-linoleic acid complexes with antitumor activities. J Dairy Sci 2015; 98:2898-907. [PMID: 25771044 DOI: 10.3168/jds.2014-8993] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 01/23/2015] [Indexed: 11/19/2022]
Abstract
β-Lactoglobulin (β-LG) can bind to fatty acids such as oleic acid (OA) and linoleic acid (LA). Another whey protein, α-lactalbumin (α-LA), can also bind to OA to give the complex α-LA-OA, which has antitumor properties. Based on reports that the activity of α-LA-OA is highly dependent on OA, as well as the acquisition of similar complexes using other proteins, such as lysozyme and lactoferrin, we speculated whether β-LG could also kill tumor cells after binding to other fatty acids. Therefore, we prepared complexes of β-LG with OA (β-LG-OA) and LA (β-LG-LA) in the current study and evaluated them in terms of antitumor activity and thermostability using the methylene blue method and differential scanning calorimetry, respectively. The structural features of these complexes were also evaluated using fluorescence spectroscopy and circular dichroism. The binding dynamics of OA and LA to β-LG were studied using isothermal titration calorimetry. Cell viability results revealed that β-LG-LA and β-LG-OA exhibited similar antitumor activities. Interestingly, the binding of β-LG to LA led to an increase in its thermostability, whereas its binding to OA had very little effect. The environments of the tryptophan residues in the β-LG-OA and β-LG-LA complexes were very different, with the residues being blue- and red-shifted, respectively. Furthermore, the hydrophobic regions in β-LG were buried after binding of OA, which was slightly changed in β-LG-LA. Circular dichroism results showed that β-LG-OA enhanced the tertiary structure, which was partially lost in β-LG-LA. There were more binding sites for OA than for LA on β-LG, although the binding constants of the 2 fatty acids were similar, with both acids interacting with the protein though van der Waals and hydrogen bonding interactions. This study could help provide a deeper understanding of the structural basis for formation of antitumor protein-fatty acid complexes.
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Affiliation(s)
- B Fang
- Beijing Laboratory for Food Quality and Safety, China Agricultural University, Beijing 100083, China; Academy of State Administration of Grain, Beijing 100037, China
| | - M Zhang
- Beijing Technology and Business University, School of Food Science and Chemical Engineering, Beijing 100048, China
| | - M Tian
- Academy of State Administration of Grain, Beijing 100037, China
| | - F Z Ren
- Key Laboratory of Functional Dairy, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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Ouyang L, Luo Y, Tian M, Zhang SY, Lu R, Wang JH, Kasimu R, Li X. Plant natural products: from traditional compounds to new emerging drugs in cancer therapy. Cell Prolif 2015; 47:506-15. [PMID: 25377084 DOI: 10.1111/cpr.12143] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Accepted: 07/03/2014] [Indexed: 02/05/2023] Open
Abstract
Natural products are chemical compounds or substances produced naturally by living organisms. With the development of modern technology, more and more plant extracts have been found to be useful to medical practice. Both micromolecules and macromolecules have been reported to have the ability to inhibit tumour progression, a novel weapon to fight cancer by targeting its 10 characteristic hallmarks. In this review, we focus on summarizing plant natural compounds and their derivatives with anti-tumour properties, into categories, according to their potential therapeutic strategies against different types of human cancer. Taken together, we present a well-grounded review of these properties, hoping to shed new light on discovery of novel anti-tumour therapeutic drugs from known plant natural sources.
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Affiliation(s)
- L Ouyang
- State Key Laboratory of Biotherapy and Department of Urology, West China Hospital, Sichuan University, Chengdu, 610041, China
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Hackett C, Ramanathan R, Malhotra K, Quigley M, Kelly K, Tian M, Protetch J, Wong C, Wright D, Tayal A. Safety of venous thromboembolism prophylaxis with fondaparinux in ischemic stroke. Thromb Res 2015; 135:249-54. [DOI: 10.1016/j.thromres.2014.11.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 09/11/2014] [Accepted: 11/04/2014] [Indexed: 11/27/2022]
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Ning NY, Zheng ZP, Zhang LQ, Tian M. An excellent ozone-resistant polymethylvinylsiloxane coating on natural rubber by thiol-ene click chemistry. EXPRESS POLYM LETT 2015. [DOI: 10.3144/expresspolymlett.2015.47] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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