1
|
Liu L, Xu ZW, Meng LL, Lu YF, Zhai YY, Cao Z. [The applications and challenges of liquid chromatography tandem mass spectrometry in maternal and child health]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1520-1526. [PMID: 36274624 DOI: 10.3760/cma.j.cn112150-20220329-00298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Due to its ultra-high sensitivity, specificity and throughput, liquid chromatography tandem mass spectrometry (LC-MS/MS) has become an important analytical tool in clinical laboratories in quantifying various small molecules, such as vitamins, bile acids, steroids and other internal metabolites relevant to maternal diseases. As an effective means of screening and diagnosing diseases in preventive medicine, LC-MS/MS has been widely used in maternal and child health, contributing to the reduction of the incidence of maternal and child diseases and premature morbidity and mortality. At present, LC-MS/MS is an emerging and powerful platform in laboratory testing in China, facing both challenges and opportunities. In this article, the representative applications in the field of maternal and child health are summarized and discussed, along with the major hurdles of LC-MS/MS in clinical recognition and implementation.
Collapse
Affiliation(s)
- L Liu
- Department of Laboratory Medicine, Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital,Beijing 100026,China
| | - Z W Xu
- Department of Laboratory Medicine, Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital,Beijing 100026,China
| | - L L Meng
- Department of Laboratory Medicine, Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital,Beijing 100026,China
| | - Y F Lu
- Department of Laboratory Medicine, Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital,Beijing 100026,China
| | - Y Y Zhai
- Department of Laboratory Medicine, Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital,Beijing 100026,China
| | - Z Cao
- Department of Laboratory Medicine, Center of Clinical Mass Spectrometry, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing Maternal and Child Health Care Hospital,Beijing 100026,China
| |
Collapse
|
2
|
Wang CY, Xu HM, Tian J, Hong SQ, Liu G, Wang SX, Gao F, Liu J, Liu FR, Yu H, Wu X, Chen BQ, Shen FF, Zheng G, Yu J, Shu M, Liu L, Du LJ, Li P, Xu ZW, Zhu MQ, Huang LS, Huang HY, Li HB, Huang YY, Wang D, Wu F, Bai ST, Tang JJ, Shan QW, Lan LC, Zhu CH, Xiong Y, Tian JM, Wu JH, Hao JH, Zhao HY, Lin AW, Song SS, Lin DJ, Zhou QH, Guo YP, Wu JZ, Yang XQ, Zhang XH, Guo Y, Cao Q, Luo LJ, Tao ZB, Yang WK, Zhou YK, Chen Y, Feng LJ, Zhu GL, Zhang YH, Xue P, Li XQ, Tang ZZ, Zhang DH, Su XW, Qu ZH, Zhang Y, Zhao SY, Qi ZZ, Pang L, Wang CY, Deng HL, Liu XL, Chen YH, Shu S. [A multicenter epidemiological study of acute bacterial meningitis in children]. Zhonghua Er Ke Za Zhi 2022; 60:1045-1053. [PMID: 36207852 DOI: 10.3760/cma.j.cn112140-20220608-00522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To analyze the clinical epidemiological characteristics including composition of pathogens , clinical characteristics, and disease prognosis acute bacterial meningitis (ABM) in Chinese children. Methods: A retrospective analysis was performed on the clinical and laboratory data of 1 610 children <15 years of age with ABM in 33 tertiary hospitals in China from January 2019 to December 2020. Patients were divided into different groups according to age,<28 days group, 28 days to <3 months group, 3 months to <1 year group, 1-<5 years of age group, 5-<15 years of age group; etiology confirmed group and clinically diagnosed group according to etiology diagnosis. Non-numeric variables were analyzed with the Chi-square test or Fisher's exact test, while non-normal distrituction numeric variables were compared with nonparametric test. Results: Among 1 610 children with ABM, 955 were male and 650 were female (5 cases were not provided with gender information), and the age of onset was 1.5 (0.5, 5.5) months. There were 588 cases age from <28 days, 462 cases age from 28 days to <3 months, 302 cases age from 3 months to <1 year of age group, 156 cases in the 1-<5 years of age and 101 cases in the 5-<15 years of age. The detection rates were 38.8% (95/245) and 31.5% (70/222) of Escherichia coli and 27.8% (68/245) and 35.1% (78/222) of Streptococcus agalactiae in infants younger than 28 days of age and 28 days to 3 months of age; the detection rates of Streptococcus pneumonia, Escherichia coli, and Streptococcus agalactiae were 34.3% (61/178), 14.0% (25/178) and 13.5% (24/178) in the 3 months of age to <1 year of age group; the dominant pathogens were Streptococcus pneumoniae and the detection rate were 67.9% (74/109) and 44.4% (16/36) in the 1-<5 years of age and 5-<15 years of age . There were 9.7% (19/195) strains of Escherichia coli producing ultra-broad-spectrum β-lactamases. The positive rates of cerebrospinal fluid (CSF) culture and blood culture were 32.2% (515/1 598) and 25.0% (400/1 598), while 38.2% (126/330)and 25.3% (21/83) in CSF metagenomics next generation sequencing and Streptococcus pneumoniae antigen detection. There were 4.3% (32/790) cases of which CSF white blood cell counts were normal in etiology confirmed group. Among 1 610 children with ABM, main intracranial imaging complications were subdural effusion and (or) empyema in 349 cases (21.7%), hydrocephalus in 233 cases (14.5%), brain abscess in 178 cases (11.1%), and other cerebrovascular diseases, including encephalomalacia, cerebral infarction, and encephalatrophy, in 174 cases (10.8%). Among the 166 cases (10.3%) with unfavorable outcome, 32 cases (2.0%) died among whom 24 cases died before 1 year of age, and 37 cases (2.3%) had recurrence among whom 25 cases had recurrence within 3 weeks. The incidences of subdural effusion and (or) empyema, brain abscess and ependymitis in the etiology confirmed group were significantly higher than those in the clinically diagnosed group (26.2% (207/790) vs. 17.3% (142/820), 13.0% (103/790) vs. 9.1% (75/820), 4.6% (36/790) vs. 2.7% (22/820), χ2=18.71, 6.20, 4.07, all P<0.05), but there was no significant difference in the unfavorable outcomes, mortility, and recurrence between these 2 groups (all P>0.05). Conclusions: The onset age of ABM in children is usually within 1 year of age, especially <3 months. The common pathogens in infants <3 months of age are Escherichia coli and Streptococcus agalactiae, and the dominant pathogen in infant ≥3 months is Streptococcus pneumoniae. Subdural effusion and (or) empyema and hydrocephalus are common complications. ABM should not be excluded even if CSF white blood cell counts is within normal range. Standardized bacteriological examination should be paid more attention to increase the pathogenic detection rate. Non-culture CSF detection methods may facilitate the pathogenic diagnosis.
Collapse
Affiliation(s)
- C Y Wang
- Department of Infectious Diseases, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - H M Xu
- Department of Infectious Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - J Tian
- Department of Infectious Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - S Q Hong
- Department of Infectious Diseases, Children's Hospital of Chongqing Medical University, Chongqing 400014, China
| | - G Liu
- Department of Infectious Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - S X Wang
- Department of Infectious Diseases, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - F Gao
- Department of Infectious Diseases, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - J Liu
- Department of Infectious Diseases, Hunan Children's Hospital, Changsha 410007, China
| | - F R Liu
- Department of Infectious Diseases, Hunan Children's Hospital, Changsha 410007, China
| | - H Yu
- Department of Infectious Diseases, Children's Hospital of Fudan University, Shanghai 201102, China
| | - X Wu
- Department of Infectious Diseases, Children's Hospital of Fudan University, Shanghai 201102, China
| | - B Q Chen
- Department of Infectious Diseases, Anhui Provincial Children's Hospital, Hefei 230022, China
| | - F F Shen
- Department of Infectious Diseases, Anhui Provincial Children's Hospital, Hefei 230022, China
| | - G Zheng
- Department of Neurology, Children's Hospital of Nanjing Medical University,Nanjing 210008, China
| | - J Yu
- Department of Neurology, Children's Hospital of Nanjing Medical University,Nanjing 210008, China
| | - M Shu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610044, China
| | - L Liu
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610044, China
| | - L J Du
- Department of Neurology, Children's Hospital of Shanxi, Taiyuan 030006, China
| | - P Li
- Department of Neurology, Children's Hospital of Shanxi, Taiyuan 030006, China
| | - Z W Xu
- Department of Infectious Diseases, the Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - M Q Zhu
- Department of Infectious Diseases, the Second Affiliated Hospital & Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - L S Huang
- Department of Infectious Diseases, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - H Y Huang
- Department of Infectious Diseases, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - H B Li
- Department of Pediatrics, the First Hospital of Jilin University, Changchu 130061, China
| | - Y Y Huang
- Department of Pediatrics, the First Hospital of Jilin University, Changchu 130061, China
| | - D Wang
- Department of Neurology, the Affiliated Children's Hospital of Xi'an Jiao Tong University, Xi'an 710002, China
| | - F Wu
- Department of Neurology, the Affiliated Children's Hospital of Xi'an Jiao Tong University, Xi'an 710002, China
| | - S T Bai
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J J Tang
- Department of Pediatrics, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Q W Shan
- Department of Pediatrics, the First Affiliated Hospital of Guangxi Medical University,Nanning 530021, China
| | - L C Lan
- Department of Pediatrics, the First Affiliated Hospital of Guangxi Medical University,Nanning 530021, China
| | - C H Zhu
- Department of Infectious Diseases, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - Y Xiong
- Department of Infectious Diseases, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - J M Tian
- Department of Infectious Diseases, Children's Hospital of Soochow University,Suzhou 215002, China
| | - J H Wu
- Department of Infectious Diseases, Children's Hospital of Soochow University,Suzhou 215002, China
| | - J H Hao
- Department of Infectious Diseases, Kaifeng Children's Hospital, Kaifeng 475000, China
| | - H Y Zhao
- Department of Infectious Diseases, Kaifeng Children's Hospital, Kaifeng 475000, China
| | - A W Lin
- Department of Infectious Diseases, Children's Hospital Affiliated Shandong University, Jinan 250022, China
| | - S S Song
- Department of Infectious Diseases, Children's Hospital Affiliated Shandong University, Jinan 250022, China
| | - D J Lin
- Department of Infectious Diseases, Hainan Women and Children's Medical Center, Haikou 571103, China
| | - Q H Zhou
- Department of Infectious Diseases, Hainan Women and Children's Medical Center, Haikou 571103, China
| | - Y P Guo
- Department of Infectious Diseases, Hainan Women and Children's Medical Center, Haikou 571103, China
| | - J Z Wu
- Department of Pediatrics, Women's and Children's Hospital Affiliated to Xiamen University, Xiamen 361003, China
| | - X Q Yang
- Department of Pediatrics, Women's and Children's Hospital Affiliated to Xiamen University, Xiamen 361003, China
| | - X H Zhang
- Department of Neonatology, Children's Hospital of Shanxi, Taiyuan 030006, China
| | - Y Guo
- Department of Neonatology, Children's Hospital of Shanxi, Taiyuan 030006, China
| | - Q Cao
- Department of Infectious Diseases, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - L J Luo
- Department of Infectious Diseases, Shanghai Children's Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - Z B Tao
- Department of Pediatrics, the First Hospital of Lanzhou University, Lanzhou 730013, China
| | - W K Yang
- Department of Pediatrics, the First Hospital of Lanzhou University, Lanzhou 730013, China
| | - Y K Zhou
- Department of Pediatrics, the First Hospital of Lanzhou University, Lanzhou 730013, China
| | - Y Chen
- Department of Pediatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050004, China
| | - L J Feng
- Department of Pediatrics, the Second Hospital of Hebei Medical University, Shijiazhuang 050004, China
| | - G L Zhu
- Department of Infection and Digestive, Qinghai Province Women and Children's Hospital, Xining 810007, China
| | - Y H Zhang
- Department of Infection and Digestive, Qinghai Province Women and Children's Hospital, Xining 810007, China
| | - P Xue
- Department of Pediatrics, Taiyuan Maternal and Child Health Care Hospital, Taiyuan 030012, China
| | - X Q Li
- Department of Pediatrics, Taiyuan Maternal and Child Health Care Hospital, Taiyuan 030012, China
| | - Z Z Tang
- Department of Pediatrics, the First People's Hospital of Zunyi, Zunyi 563099, China
| | - D H Zhang
- Department of Pediatrics, the First People's Hospital of Zunyi, Zunyi 563099, China
| | - X W Su
- Department of Pediatrics, Inner Mongolia People's Hospital, Inner Mongolia 750306, China
| | - Z H Qu
- Department of Pediatrics, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - Y Zhang
- Department of Pediatrics, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
| | - S Y Zhao
- Department of Infectious Diseases, Hangzhou Children's Hospital, Hangzhou 310005, China
| | - Z Z Qi
- Department of Infectious Diseases, Hangzhou Children's Hospital, Hangzhou 310005, China
| | - L Pang
- Department of Pediatrics, Beijing Ditan Hospital, Capital Medical University, Beijing 100102, China
| | - C Y Wang
- Department of Pediatrics, Beijing Ditan Hospital, Capital Medical University, Beijing 100102, China
| | - H L Deng
- Department of Pediatrics, Xi'an Central Hospital, Xi'an 710004, China
| | - X L Liu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y H Chen
- Department of Infectious Diseases, Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - Sainan Shu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| |
Collapse
|
3
|
Qian LX, Yan L, Xu ZW, Shan LQ, Wang WT, He LM, He SM, Fan Y, Ge CY, Li HK, Hao DJ. [Early efficacy of three dimensional printed anatomical biomimetic cervical artificial disc replacement in the treatment of cervical degenerative diseases]. Zhonghua Wai Ke Za Zhi 2022; 60:223-229. [PMID: 35078297 DOI: 10.3760/cma.j.cn112139-20211202-00575] [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 efficacy and safety of a new cervical artificial disc prosthesis in the treatment of cervical degenerative diseases. Methods: The clinical data of 18 patients with single-level cervical degenerative diseases who underwent three dimensional printed anatomical bionic cervical disc replacement at Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University from May 2019 to July 2020 were analyzed retrospectively. There were 7 males and 11 females,aged (45±8) years old(range:28 to 58 years).The surgical segment was located at C3-4 level in 2 cases, C4-5 level in 5 cases, C5-6 level in 9 cases, and C6-7 level in 2 cases.The clinical and radiographic outcomes were recorded and compared at preoperative,postoperative times of one month and twelve months.The clinical assessments contained Japanese orthopedic association (JOA) score,neck disability index (NDI) and visual analogue scale (VAS).Imaging assessments included range of motion (ROM) of cervical spine, prosthesis subsidence and prosthesis anteroposterior migration.Repeated measurement variance analysis was used for comparison between groups,and paired t test was used for pairwise comparison. Results: All patients underwent the operation successfully and were followed up for more than 12 months.Compared with preoperative score,the JOA score,NDI and VAS were significantly improved after surgery (all P<0.01).There was no significant difference in postoperative ROM compared with 1-and 12-month preoperative ROM (t=1.570,P=0.135;t=1.744,P=0.099). The prosthesis subsidence was (0.29±0.13) mm (range: 0.18 to 0.50 mm) at 12-month postoperatively.The migration of prosthesis at 12-months postoperatively were (0.71±0.20) mm (range: 0.44 to 1.08 mm).There was no prosthesis subsidence or migration>2 mm at 12-month postoperatively. Conclusion: Three dimensional printed anatomical biomimetic cervical artificial disc replacement has a good early clinical effect in the treatment of cervical degenerative diseases, good mobility can be obtained while maintaining stability.
Collapse
Affiliation(s)
- L X Qian
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| | - L Yan
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| | - Z W Xu
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| | - L Q Shan
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| | - W T Wang
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| | - L M He
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| | - S M He
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| | - Y Fan
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| | - C Y Ge
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| | - H K Li
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| | - D J Hao
- Department of Spinal Surgery,Honghui Hospital,Xi'an Jiaotong University,Xi'an 710054,China
| |
Collapse
|
4
|
Abstract
BACKGROUND Lupus B cells not only produce autoantibodies against nuclear antigens but also provide co-stimulation to T cells. However, there is still a lack of comprehensive understanding of the mechanism underlying lupus B cell hyperactivation. METHODS This study focuses on the detection of B cell activation status, analysis of early BCR signaling response, DNA sequencing, and quantity determination of BCR signaling regulators in murine lupus models. RESULTS Our result showed that there is a B cell hyperactivation with a significant elevation of B cell activation markers, and a BCR signaling hyperactivity with an abnormal increase of phosphorylated BCR signaling molecules and cytoplasmic calcium in the early response to BCR crosslinking in B6.Sle1/2/3 lupus mouse. Whole exome sequencing identified a multiple point mutation in the exon of many BCR signaling regulators in common murine lupus models, MRL/lpr, NZM2410, BXSB, NZB, and NZW strains. cNDA sequencing confirmed FcγR2b, Ly9, Pirb, Siglecg, and CD22 BCR signaling regulator variants in B6.Sle1/2/3 lupus mouse, but surface protein expression of these regulators on B cells showed an abnormal increase. CONCLUSION Our findings support that these BCR signaling regulator variants are potential causative genes of B cell hyperactivation in murine lupus models through their possible functional reduction.
Collapse
Affiliation(s)
- J Y Ju
- Department of Immunology, 372527Weifang Medical University, Weifang, China
| | - Z W Xu
- Department of Immunology, 372527Weifang Medical University, Weifang, China
| |
Collapse
|
5
|
Fu LN, Xu ZW, Xu RC, Fang T, Wang FM. [The mechanism study of ouabain in inhibiting the growth of hepatocellular carcinoma cells by inhibiting the laser kinase signaling pathway]. Zhonghua Yi Xue Za Zhi 2020; 100:3014-3017. [PMID: 33086454 DOI: 10.3760/cma.j.cn112137-20200605-1778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of Na(+)/K(+)-ATPase inhibitor ouabain on the proliferation and division of liver cancer HepG2 cells, and to explore the anticancer mechanism. Methods: HepG2 cells were exposed with different concentrations of ouabain (0.1, 1, 10 μmol/L) for 24 h, the proliferation ability was appraised using CCK-8, and the HepG2 cells was as a control group. The status of chromosome separation was detected with cell immunofluorescence (ICC) coupled to confocal microscope. The expression levels of AURKA, mTOR, p-mTOR, ERK and p-ERK protein were analyzed using western blot. Results: After treating with 0.1, 1 and 10 μmol/L of ouabain for 24 h, the inhibitory rate of cells were (23.5±4.57)%, (49.80±5.32)%, and (72.10±5.62)%, respectively. Ouabain could significantly inhibit the proliferation of HepG2, and presented in a dose-dependent manner(F=32.8, P<0.05). The ICC results showed that the chromosome separation disorders occurred in HepG2 cells treated with 1 μmol/L for 24 h, and the spindle diameter of HepG2 cells with ouabain treatment was decreased significantly compared with the control group(t=9.58, P<0.05). The results of western blot showed that the expression levels of AURKA, p-mTOR and p-ERK expressions in HepG2 cells treated with 1 μmol/L of ouabain were significantly decreased compared with the control group(F=16.26, 8.32, 33.59, P<0.05). Ouabain inhibited the growth of hepatocellular carcinoma cells in nude mice(F=370.20, P<0.05). Conclusion: Ouabain can induce chromosome division disorder and inhibit the proliferation in liver cancer HepG2 cells by inhibiting AURKA signaling pathway.
Collapse
Affiliation(s)
- L N Fu
- Department of Gastroenterology, Tianjin Fourth Central Hospital, Tianjin 300140, China
| | - Z W Xu
- Central Laboratory of Armed Police Logistics College, Tianjin 300309, China
| | - R C Xu
- Central Laboratory of Armed Police Logistics College, Tianjin 300309, China
| | - T Fang
- Department of Gastroenterology, Tianjin Fourth Central Hospital, Tianjin 300140, China
| | - F M Wang
- Department of Hepatology, Tianjin Second People's Hospital, Tianjin 300211, China
| |
Collapse
|
6
|
Li WL, Xu ZW, Li SN, Shen HE, Wang Y, Li ZM, Zhang CS, Xing YG, Shen X. [Progress of researches on the role of neutrophil extracellular traps in the immune responses against parasites]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 33:434-438. [PMID: 34505456 DOI: 10.16250/j.32.1374.2020187] [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: 11/27/2022]
Abstract
Neutrophil extracellular trap (NET) is a type of bead-like, fibrous and reticular substances that is actively released by activated inflammatory neutrophils during the stage of infections or inflammatory responses. NET, which is composed of chromatin DNA and multiple intracellular protein components, may wrap pathogens to limit their diffusions. Meanwhile, NET may kill pathogens via a wide range of antibacterial proteins, which is considered as the third antibacterial mechanism of neutrophils, in addition to phagocytosis and degranulation. Recent studies have shown the involvement of NET in the immune response against parasitic infections. This review summarizes the advances of NETs in the immune responses against parasitic infections, so as to provide insights into the elucidation of the pathogenesis and development of therapeutics of parasitic diseases.
Collapse
Affiliation(s)
- W L Li
- College of Clinical Medicine, North China University of Science and Technology, Tangshan 063210, China
| | - Z W Xu
- College of Clinical Medicine, North China University of Science and Technology, Tangshan 063210, China
| | - S N Li
- College of Clinical Medicine, North China University of Science and Technology, Tangshan 063210, China
| | - H E Shen
- College of Life Sciences, North China University of Science and Technology, China
| | - Y Wang
- College of Life Sciences, North China University of Science and Technology, China
| | - Z M Li
- College of Nursing and Rehabilitation, North China University of Science and Technology, China
| | - C S Zhang
- College of Life Sciences, North China University of Science and Technology, China
| | - Y G Xing
- College of Life Sciences, North China University of Science and Technology, China
| | - X Shen
- College of Life Sciences, North China University of Science and Technology, China
| |
Collapse
|
7
|
Sun YM, Zhang DS, Feng YF, Wang Y, Xu ZW. [Retrospective investigation of patients receiving additional surgery after endoscopic non-curative resection for early colorectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:486-491. [PMID: 32842429 DOI: 10.3760/cma.j.cn.441530-20190612-00239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To investigate the clinical application of additional surgery after non-curative endoscopic resection for early colorectal cancer. Methods: A retrospectively descriptive cohort study was conducted. Inclusion criteria: (1) pathologically confirmed primary colorectal adenocarcinoma;(2) receiving additional surgery after endoscopic resection; (3) semi-elective operation. Exclusion criteria: familial adenomatous polyposis, appendiceal neoplasms, anal canal neoplasms, neuroendocrine tumors, and surgery because of perforation or bleeding after endoscopic resection. Indications of additional surgery: (1) pathologically positive lateral or basal resection margin; (2) submucosal invasion depth ≥ 1000 μm; (3) lymphovascular invasion; (4) poorly differentiated, undifferentiated or mucinous adenocarcinoma; (5) more than grade G2 in tumor budding; (6) incomplete resection or piecemeal specimen with margin impossible to evaluate; (7) patient's consent due to undetermined pathology. According to the above criteria, clinical data of 92 patients at the Colorectal Surgery Department, the First Affiliated Hospital of Nanjing Medical University between January 2013 and December 2018 were collected. Demographic data, pathological examinations, operative methods and outcomes were analyzed. Results: There were 61 (66.3%) male and 31 female (33.7%) patients with an average age of (58.2±10.7) years. The average BMI was (23.8±3.5) kg/m(2). The lesions located in the right-sided colon, left-sided colon and rectum in 19, 37 and 36 patients respectively. Sixteen patients received endoscopic snare resection, 45 received endoscopic mucosal resection and 31 received endoscopic submucosal dissection. Reasons for additional surgery included endoscopic specimen with pathologically positive margin (n=22, 23.9%), submucosal invasion depth ≥ 1000 μm (n=9, 9.8%), lymphovascular invasion (n=4, 4.3%), poorly differentiated, undifferentiated or mucinous adenocarcinoma (n=5, 5.4%), piecemeal resection (n=13, 14.1%), undetermined pathology (n=52, 56.5%). The median duration from endoscopic resection to additional surgery was 16 days. Thirty-four patients (37.0%) received preoperative endoscopic localization with carbon nanoparticles suspension injection and 5 (5.4%) were marked with titanium clip. Seventy-four patients (80.4%) received laparoscopic surgery, 17 (18.5%) received open surgery, while 1 patient (1.1%) was converted to open surgery due to missing titanium clip. Three patients (3.3%) were treated with transanal excision, 2 (2.2%) with bowel resection, and 87 (94.6%) with radical excision. After additional surgery, histopathological examination of surgical specimens revealed the presence of residual tumor in 5 patients (5.4%), lymph node metastasis in 8 (8.7%), lymphovascular invasion in 1 (1.1%) and tumor deposit in 1 (1.1%). Twelve patients (13.0%) developed postoperative complications, including 4 mid-low rectal cancer patients (4.3%) with anastomostic leakage or bleeding. After surgery, according to the TNM staging system, 83 patients (90.2%) were classified as TNM stage 0-I, 9 (9.8%) as TNM stage II-IV. One patient of stage IV with liver metastasis underwent concomitant hepatectomy. One patient of stage II received regular follow-up after operation. Seven cases of stage III and 1 of stage IV received postoperative chemotherapy. Eighty-five patients (92.4%) were followed up with a median time of 12.8 (IQR: 8.1, 24.3) months. No recurrence or metastasis was observed. Conclusions: Surgery is an effective salvage measure for non-curative endoscopic resection of early colorectal cancer. Since surgery may have complications, indications of the additional surgery should be considered carefully. Preoperative endoscopic localization should be performed in order to ensure the safety and efficacy of surgery.
Collapse
Affiliation(s)
- Y M Sun
- Department of Colorectal Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - D S Zhang
- Department of Colorectal Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Y F Feng
- Department of Colorectal Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Y Wang
- Department of Colorectal Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Z W Xu
- Department of Colorectal Surgery, The First Affiliated Hospital, Nanjing Medical University, Nanjing 210029, China
| |
Collapse
|
8
|
Lun DX, Chen NW, Feng JT, Yang XG, Xu ZW, Li F, Hu YC. Visceral Metastasis: A Prognostic Factor of Survival in Patients with Spinal Metastases. Orthop Surg 2020; 12:552-560. [PMID: 32227458 PMCID: PMC7189062 DOI: 10.1111/os.12657] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2019] [Revised: 02/11/2020] [Accepted: 02/19/2020] [Indexed: 12/12/2022] Open
Abstract
Objective To characterize the visceral metastasis as a predictive tool for the survival of patients with spinal metastases through an exploratory meta‐analysis. Methods Two investigators independently searched PubMed and Embase databases for eligible studies from 2000–2016. The effect estimates for the hazard ratio (HR) or risk ratio (RR) and 95% confidence interval (CI) were collected and pooled with a random‐ or fixed‐effect model. Results In total, 18 eligible studies were retrieved with 5468 participants from nine countries. The overall pooled effect size for HR and RR was 1.50 and 3.79, respectively, which was proved to be statistically significant. In the subgroup of prostate cancer (PCa) and non‐small cell lung cancer (NSCLC), statistical significance and marginal statistical significance was presented for the pooled HR (HR = 1.76, 95% CI 1.35–2.29) and (RR = 1.56, 95% CI 0.99–2.48), respectively. However, in the subgroup of thyroid cancer, breast cancer, and renal cancer, statistical significance was not achieved (HR = 1.17, 95% CI 0.75–1.83, Z = 0.70, P = 0.486). The results did not show any evidence of publication bias. Conclusions This study demonstrated that visceral metastasis was a significant prognostic factor in patients with spinal metastases as a whole. Interestingly, the onset of visceral metastases differentially impacted the survival in different primary tumors. Therefore, the prognostic value of visceral metastasis might be related to the type of primary tumor.
Collapse
Affiliation(s)
- Deng-Xing Lun
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Nai-Wang Chen
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Jiang-Tao Feng
- Graduate School of Tianjin Medical University, Tianjin, China
| | - Xion-Gang Yang
- Graduate School of Tianjin Medical University, Tianjin, China
| | - Zhao-Wan Xu
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Feng Li
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Yong-Cheng Hu
- Department of Bone Oncology, Tianjin Hospital, Tianjin, China
| |
Collapse
|
9
|
Zeng ZY, Xu ZW, He DW, Zhao X, Ma WH, Ni WF, Song YX, Zhang JQ, Yu W, Fang XQ, Zhou ZJ, Xu NJ, Huang WJ, Hu ZC, Wu AL, Ji JF, Han JF, Fan SW, Zhao FD, Jin H, Pei F, Fan SY, Sui DX. Complications and Prevention Strategies of Oblique Lateral Interbody Fusion Technique. Orthop Surg 2018; 10:98-106. [PMID: 29878716 DOI: 10.1111/os.12380] [Citation(s) in RCA: 101] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 04/04/2018] [Indexed: 12/01/2022] Open
Abstract
OBJECTIVE To analyze the early complications and causes of oblique lateral interbody fusion, and put forward preventive measures. METHODS There were 235 patients (79 males and 156 females) analyzed in our study from October 2014 to May 2017. The average age was 61.9 ± 0.21 years (from 32 to 83 years). Ninety-one cases were treated with oblique lateral interbody fusion (OLIF) alone (OLIF alone group) and 144 with OLIF combined with posterior pedicle screw fixation through the intermuscular space approach (OLIF combined group). In addition, 137/144 cases in the combined group were primarily treated by posterior pedicle screw fixation, while the treatments were postponed in 7 cases. There were 190 cases of single fusion segments, 11 of 2 segments, 21 of 3 segments, and 13 of 4 segments. Intraoperative and postoperative complications were observed. RESULTS Average follow-up time was 15.6 ± 7.5 months (ranged from 6 to 36 months). Five cases were lost to follow-up (2 cases from the OLIF alone group and 3 cases from the OLIF combined group). There were 7 cases of vascular injury, 22 cases of endplate damage, 2 cases of vertebral body fracture, 11 cases of nerve injury, 18 cases of cage sedimentation or cage transverse shifting, 3 cases of iliac crest pain, 1 case of right psoas major hematoma, 2 cases of incomplete ileus, 1 case of acute heart failure, 1 case of cerebral infarction, 3 case of left lower abdominal pain, 9 cases of transient psoas weakness, 3 cases of transient quadriceps weakness, and 8 cases of reoperation. The complication incidence was 32.34%. Thirty-three cases occurred in the OLIF alone group, with a rate of 36.26%, and 43 cases in the group of OLIF combined posterior pedicle screw fixation, with a rate of 29.86%. Fifty-seven cases occurred in single-segment fusion, with a rate of 30.0% (57/190), 4 cases occurred in two-segment fusion, with a rate of 36.36% (4/11), 9 cases occurred in three-segment fusion, with a rate of 42.86% (9/21), and 6 cases occurred in four-segment fusion, with a rate of 46.15% (6/13). CONCLUSION In summary, OLIF is a relatively safe and very effective technique for minimally invasive lumbar fusion. Nonetheless, it should be noted that OLIF carries the risk of complications, especially in the early stage of development.
Collapse
Affiliation(s)
- Zhong-You Zeng
- Department of Orthopaedics, Sir Run Run Shaw Hospital of Medical College of Zhejiang University, Hangzhou, China.,Second Department of Orthopedics, Jiaxing Hospital of Zhejiang General Corps of Armed Police Forces, Jiaxing, China
| | - Zhao-Wan Xu
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Deng-Wei He
- Department of Orthopaedics, Sir Run Run Shaw Hospital of Medical College of Zhejiang University, Hangzhou, China.,Department of Spine, Lishui Center Hospital, Lishui, China
| | - Xing Zhao
- Department of Orthopaedics, Sir Run Run Shaw Hospital of Medical College of Zhejiang University, Hangzhou, China
| | - Wei-Hu Ma
- Department of Spine, Ningbo Sixth Hospital, Ningbo, China
| | - Wen-Fei Ni
- Department of Spine, The second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Yong-Xing Song
- Second Department of Orthopedics, Jiaxing Hospital of Zhejiang General Corps of Armed Police Forces, Jiaxing, China
| | - Jian-Qiao Zhang
- Second Department of Orthopedics, Jiaxing Hospital of Zhejiang General Corps of Armed Police Forces, Jiaxing, China
| | - Wei Yu
- Second Department of Orthopedics, Jiaxing Hospital of Zhejiang General Corps of Armed Police Forces, Jiaxing, China
| | - Xiang-Qian Fang
- Department of Orthopaedics, Sir Run Run Shaw Hospital of Medical College of Zhejiang University, Hangzhou, China
| | - Zhi-Jie Zhou
- Department of Orthopaedics, Sir Run Run Shaw Hospital of Medical College of Zhejiang University, Hangzhou, China
| | - Nan-Jian Xu
- Department of Spine, Ningbo Sixth Hospital, Ningbo, China
| | - Wen-Jian Huang
- Department of Spine, Lishui Center Hospital, Lishui, China
| | - Zhi-Chao Hu
- Department of Spine, The second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ai-Lian Wu
- Department of Spine, The second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jian-Fei Ji
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Jian-Fu Han
- Second Department of Orthopedics, Jiaxing Hospital of Zhejiang General Corps of Armed Police Forces, Jiaxing, China
| | - Shun-Wu Fan
- Department of Orthopaedics, Sir Run Run Shaw Hospital of Medical College of Zhejiang University, Hangzhou, China
| | - Feng-Dong Zhao
- Department of Orthopaedics, Sir Run Run Shaw Hospital of Medical College of Zhejiang University, Hangzhou, China
| | - Hui Jin
- Second Department of Orthopedics, Jiaxing Hospital of Zhejiang General Corps of Armed Police Forces, Jiaxing, China
| | - Fei Pei
- Second Department of Orthopedics, Jiaxing Hospital of Zhejiang General Corps of Armed Police Forces, Jiaxing, China
| | - Shi-Yang Fan
- Second Department of Orthopedics, Jiaxing Hospital of Zhejiang General Corps of Armed Police Forces, Jiaxing, China
| | - De-Xiu Sui
- Orthopedics Medical Instruments of Hanwei, Weifang, China
| |
Collapse
|
10
|
Lun DX, Hu YC, Yang XG, Wang F, Xu ZW. Short-term outcomes of reconstruction subsequent to intercalary resection of femoral diaphyseal metastatic tumor with pathological fracture: Comparison between segmental allograft and intercalary prosthesis. Oncol Lett 2018; 15:3508-3517. [PMID: 29556273 PMCID: PMC5844073 DOI: 10.3892/ol.2018.7804] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 11/16/2017] [Indexed: 01/25/2023] Open
Abstract
Reconstruction of bone defects following femoral diaphyseal tumor resection is challenging. Segmental allograft (SA) and intercalary prosthesis (IP) are the most common reconstruction methods for femoral diaphyseal metastatic tumors with pathological fracture. However, whether the complications and functional outcomes differ between SA and IP remains unclear. To compare the clinical outcomes and complications for patients treated with SA reconstruction or IP replacement for femoral shaft tumors, 34 patients who had undergone intercalary resection for metastatic tumor with pathological fracture in the femoral diaphysis were evaluated. Of these, 18 had received SA and 16 IP. There were 11 males, and 24 females, with a mean age of 64.5±11.3 years. The most common sites of primary metastases were lung (26.5%), breast (17.6%) and liver (14.7%). The visual analog scale (VAS), implant-related complications and the Musculoskeletal Tumor Society (MSTS) scores for each patient were collected. The follow-up period for patients ranged from 2 to 27 months. At the most recent follow-up, 28 patients had succumbed to mortality, with a mean survival time of 6.9±3.7 months for the IP group and 7.4±3.0 months for the SA group. Patients with IP had a significantly shorter time to full weight bearing and hospitalization time than those who received SA (P=0.003 and P=0.002, respectively). The rates of overall complications and implant-related complications were significantly lower for IP as compared with SA (18.8 vs. 66.7%, P=0.007; 12.5 vs. 55.6%, P=0.013). The reoperation rate of the SA group was higher than that of the IP group (38.9 vs. 12.5%), however the difference between the two groups was statistically insignificant (P=0.125). MSTS scores were significantly higher for the IP group as compared with the SA group at one month after surgery (IP, 26.7±1.6 vs. SA, 20.3±1.5; P<0.05), without a significant difference at the final follow-up. There were no statistically significant differences in age, sex, length of resection, follow-up time, operative time or blood loss between the two groups. In summary, IP reconstruction may provide improved early functional outcomes and fewer early complications, particularly for patients with a shorter life expectancy due to femoral metastatic tumors with pathological fracture.
Collapse
Affiliation(s)
- Deng-Xing Lun
- Graduate School of Tianjin Medical University, Tianjin 300070, P.R. China.,Department of Spine Surgery, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China.,Department of Bone Oncology, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Yong-Cheng Hu
- Department of Bone Oncology, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Xiong-Gang Yang
- Department of Bone Oncology, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Feng Wang
- Department of Bone Oncology, Tianjin Hospital, Tianjin 300211, P.R. China
| | - Zhao-Wan Xu
- Department of Spine Surgery, Weifang People's Hospital, Weifang, Shandong 261041, P.R. China
| |
Collapse
|
11
|
Xu ZW, Hu YC, Sun CG, Shang XP, Lun DX, Li F, Ji XB, Liu DY, Chen NW, Zhuang QS. Treatment for Thoracic Ossification of Posterior Longitudinal Ligament with Posterior Circumferential Decompression. Orthop Surg 2017; 9:206-214. [PMID: 28616883 DOI: 10.1111/os.12331] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2017] [Accepted: 03/01/2017] [Indexed: 11/28/2022] Open
Abstract
OBJECTIVE To report the results of the posterior approach for thoracic ossification of posterior longitudinal ligament (TOPLL) by using a special "L" osteotome. METHODS The present study enrolled 16 consecutive patients (9 men and 7 women) between May 2009 and September 2013. All patients underwent a posterior circumferential decompression osteotomy and segmental instrumentation with interbody fusion. The mean age at surgery was 57.3 years (range, 37-68 years). Patients' data, clinical manifestation, blood loss, length of surgery, complications, visual analog scale (VAS), Japanese Orthopedic Association (JOA), and Frankel grading system before and after surgery were collected and evaluated, retrospectively. RESULTS The average follow-up period was 30 ± 19 months (range, 12-50 months). All patients were successfully treated with posterior compression and segmental instrumentation with interbody fusion. The average operation time was 261.6 ± 51.3 min (range, 190-310 min). The mean blood loss was 980.3 ± 370.5 mL (range, 600-2100 mL). All patients had subjective improvement of motor power and gait. Average preoperative and postoperative JOA scores were 4.2 ± 1.7 and 7.8 ± 2.5 points, respectively. Differences in the overall JOA scores showed significant postoperative improvement. At the last follow-up, all patients improved either by one or two Frankel grades. There was a significant difference between preoperative VAS scores and those 3 months after surgery (P < 0.05). No significant difference was observed between the 3-month and 12-month results (P > 0.05). Cerebrospinal fluid (CSF) leakage occurred in 3 patients. Acute neurological deterioration was encountered postoperatively in 1 patient. CONCLUSION Treatment with posterior transpedicular osteotomy and circumferential decompression was found to be safe, effective, reliable, and technically feasible, and keeping the thoracic cavity intact avoids many shortcomings of anterior surgery and results in a satisfactory spinal decompression.
Collapse
Affiliation(s)
- Zhao-Wan Xu
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Yong-Cheng Hu
- Department of Bone Oncology, Tianjin Hospital, Tianjin, China
| | - Chui-Guo Sun
- Department of Orthopaedics, Peking University Third Hospital, Beijing, China
| | - Xiao-Peng Shang
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Deng-Xing Lun
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Feng Li
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Xu-Bin Ji
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Da-Yong Liu
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Nai-Wang Chen
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| | - Qing-Shan Zhuang
- Department of Spine Surgery, Weifang People's Hospital, Weifang, China
| |
Collapse
|
12
|
Ren ZH, Deng HD, Deng YT, Deng JL, Zuo ZC, Yu SM, Shen LH, Cui HM, Xu ZW, Hu YC. Effect of the Fusarium toxins, zearalenone and deoxynivalenol, on the mouse brain. Environ Toxicol Pharmacol 2016; 46:62-70. [PMID: 27438895 DOI: 10.1016/j.etap.2016.06.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [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: 10/28/2015] [Revised: 06/24/2016] [Accepted: 06/29/2016] [Indexed: 05/20/2023]
Abstract
The aim of this study was to find effects of Fusarium toxins on brain injury in mice. We evaluated the individual and combined effect of the Fusarium toxins zearalenone and deoxynivalenol on the mouse brain. We examined brain weight, protein, antioxidant indicators, and apoptosis. After 3 and 5days of treatment, increased levels of nitric oxide, total nitric oxide synthase, hydroxyl radical scavenging, and malondialdehyde were observed in the treatment groups. This was accompanied by reduced levels of brain protein, superoxide dismutase (apart from the low-dose zearalenone groups), glutathione, glutathione peroxidase activity, and percentage of apoptotic cells. By day 12, most of these indicators had returned to control group levels. The effects of zearalenone and deoxynivalenol were dose-dependent, and were synergistic in combination. Our results suggest that brain function is affected by zearalenone and deoxynivalenol.
Collapse
Affiliation(s)
- Z H Ren
- College of Veterinary Medicine, Sichuan Agricultural University, Sichuan Province Key Laboratory of Animal Disease & Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - H D Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Sichuan Province Key Laboratory of Animal Disease & Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - Y T Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Sichuan Province Key Laboratory of Animal Disease & Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - J L Deng
- College of Veterinary Medicine, Sichuan Agricultural University, Sichuan Province Key Laboratory of Animal Disease & Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China.
| | - Z C Zuo
- College of Veterinary Medicine, Sichuan Agricultural University, Sichuan Province Key Laboratory of Animal Disease & Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - S M Yu
- College of Veterinary Medicine, Sichuan Agricultural University, Sichuan Province Key Laboratory of Animal Disease & Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - L H Shen
- College of Veterinary Medicine, Sichuan Agricultural University, Sichuan Province Key Laboratory of Animal Disease & Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - H M Cui
- College of Veterinary Medicine, Sichuan Agricultural University, Sichuan Province Key Laboratory of Animal Disease & Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - Z W Xu
- College of Veterinary Medicine, Sichuan Agricultural University, Sichuan Province Key Laboratory of Animal Disease & Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| | - Y C Hu
- College of Veterinary Medicine, Sichuan Agricultural University, Sichuan Province Key Laboratory of Animal Disease & Human Health, Key Laboratory of Environmental Hazard and Human Health of Sichuan Province, Chengdu, 611130, China
| |
Collapse
|
13
|
Yang K, Wei C, Zhao GY, Xu ZW, Lin SX. Effects of dietary supplementing tannic acid in the ration of beef cattle on rumen fermentation, methane emission, microbial flora and nutrient digestibility. J Anim Physiol Anim Nutr (Berl) 2016; 101:302-310. [PMID: 27272696 DOI: 10.1111/jpn.12531] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [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: 01/05/2016] [Accepted: 04/06/2016] [Indexed: 11/27/2022]
Abstract
Four adult Simmental male cattle (376 ± 9.0 kg initial BW), fitted with permanent rumen cannulas, were used in a 4 × 4 Latin square design to investigate the effects of dietary supplementing tannic acid (TA) on rumen fermentation, methane (CH4 ) production, rumen microbes, nutrient digestibility and plasma biochemical parameters. Four levels of TA, that is 0, 6.5, 13.0 or 26.0 g/kg dry matter (DM), were added to the basal ration (composed of corn silage and concentrate mixture) as experimental treatments respectively. Each experimental period consisted of a 12-day adaptation phase followed by a 3-day sampling phase. The results showed that supplementing TA at 26.0 g/kg DM decreased the relative abundance of protozoa, methanogens and Ruminococcus albus to the total ruminal bacterial 16S rDNA in beef cattle (p < 0.05). The results also showed that supplementing TA at 6.5, 13.0 or 26.0 g/kg DM decreased (p < 0.01) the CH4 production (l/kg DM intake) by 11.1%, 14.7% and 33.6% respectively. Supplementing TA at 13.0 or 26.0 g/kg DM decreased the ratio of acetate to propionate and ammonia nitrogen (NH3 -N) (p < 0.05) and tended to decrease the total volatile fatty acid (VFA) concentration of rumen fluid (p = 0.07). Supplementing TA at 26.0 g/kg DM decreased DM and organic matter (OM) digestibility (p < 0.05), supplementing TA at 6.5, 13.0 or 26.0 g/kg DM decreased (p < 0.01) crude protein (CP) digestibility by 5.0%, 8.6% and 15.7%, respectively, and supplementing TA at 6.5, 13.0 or 26.0 g/kg DM increased (p < 0.05) the plasma total antioxidant capability. It was concluded that supplementing TA in the ration of beef cattle decreased the CH4 production and digestibility of CP of beef cattle. Supplementing TA could be an effective option to mitigate CH4 emission form cattle, further research is necessary to study the effects of TA on the performance of cattle.
Collapse
Affiliation(s)
- K Yang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - C Wei
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - G Y Zhao
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - Z W Xu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| | - S X Lin
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, P. R. China
| |
Collapse
|
14
|
Pan B, Xu ZW, Xu Y, Liu LJ, Zhu J, Wang X, Nan C, Zhang Z, Shen W, Huang XP, Tian J. Diastolic dysfunction and cardiac troponin I decrease in aging hearts. Arch Biochem Biophys 2016; 603:20-8. [PMID: 27184165 DOI: 10.1016/j.abb.2016.05.008] [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] [Received: 02/27/2016] [Revised: 05/07/2016] [Accepted: 05/11/2016] [Indexed: 11/28/2022]
Abstract
Cardiac tropnoin I (cTnI) plays a critical role in the regulation of diastolic function, and its low expression may result in cardiac diastolic dysfunction, which is the most common form of cardiovascular disorders in older adults. In this study, cTnI expression levels were determined in mice at various ages and cardiac function was measured and compared between young adult mice (3 and 10 months) and older mice (18 months). The data indicated that the cTnI levels reached a peak high in young adult hearts (3 months), but decreased in older hearts (18 months). Furthermore, the older hearts showed a significant diastolic dysfunction observed by P-V loop and echocardiography measurements. To further define the mechanism underlying the cTnI decrease in aging hearts, we tested DNA methylation and histone acetylation modifications of cTnI gene. We found that acetylation of histone near the promoter region of cTnI gene played an important role in regulation of cTnI expression in the heart at different ages. Our study indicates that epigenetic modification caused cTnI expression decrease is one of the possible causes that result in a reduced cTnI level and diastolic dysfunction in the older hearts.
Collapse
Affiliation(s)
- B Pan
- Heart Centre, Children's Hospital of Chongqing Medical University, Chongqing, PR China; Key Laboratory of Developmental Disease in Childhood (Chongqing Medical University), Ministry of Education, Chongqing, PR China; Key Laboratory of Pediatrics in Chongqing, PR China; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, PR China
| | - Z W Xu
- Heart Centre, Children's Hospital of Chongqing Medical University, Chongqing, PR China; Key Laboratory of Developmental Disease in Childhood (Chongqing Medical University), Ministry of Education, Chongqing, PR China; Key Laboratory of Pediatrics in Chongqing, PR China; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, PR China
| | - Y Xu
- Heart Centre, Children's Hospital of Chongqing Medical University, Chongqing, PR China; Key Laboratory of Developmental Disease in Childhood (Chongqing Medical University), Ministry of Education, Chongqing, PR China; Key Laboratory of Pediatrics in Chongqing, PR China; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, PR China
| | - L J Liu
- Key Laboratory of Developmental Disease in Childhood (Chongqing Medical University), Ministry of Education, Chongqing, PR China; Key Laboratory of Pediatrics in Chongqing, PR China; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, PR China
| | - J Zhu
- Key Laboratory of Developmental Disease in Childhood (Chongqing Medical University), Ministry of Education, Chongqing, PR China; Key Laboratory of Pediatrics in Chongqing, PR China; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, PR China
| | - X Wang
- Department of Biomedical Science, Charlie E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - C Nan
- Department of Biomedical Science, Charlie E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - Z Zhang
- Department of Biomedical Science, Charlie E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - W Shen
- Department of Biomedical Science, Charlie E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA
| | - X P Huang
- Department of Biomedical Science, Charlie E. Schmidt College of Medicine, Florida Atlantic University, Boca Raton, FL, USA.
| | - J Tian
- Heart Centre, Children's Hospital of Chongqing Medical University, Chongqing, PR China.
| |
Collapse
|
15
|
Zhuang QS, Lun DX, Xu ZW, Sui GX, Ji XB, Liu DY. [The circumferential decompression by posterior transpedicular osteotomy and segmental instrumentation with interbody fusion for thoracic ossification of posterior iongitudinal ligament]. Zhonghua Yi Xue Za Zhi 2016; 96:1196-200. [PMID: 27117367 DOI: 10.3760/cma.j.issn.0376-2491.2016.15.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To observe the efficacy of the circumferential decompression with posterior transpedicular osteotomy and segmental instrumentation with interbody fusion for thoracic ossification of posterior Iongitudinal ligament (T-OPLL). METHODS From May 2012 to June 2015, 16 consecutive patients underwent posterior transpedicular osteotomy and segmental instrumentation with interbody fusion.Osteotomy range was depended by length and types of OPLL.Patient's data included level, clinical presentation, blood loss, length of surgery, complications, VAS, JOA, and Frankel grading system before and after the surgery. All data were collected, retrospectively. RESULTS The follow-up period was (30±19) months (range from 12 to 50 months). The operation time was (261.6±51.3) min (range from 190 to 310 min). The blood loss was (980.3±370.5) ml (range from 600 to 2 100 ml). All patients were well treated with posterior compression and segmental instrumentation with interbody fusion.The VAS score was (4.2±0.2) in all patients at a week, improving to (2.7±0.1) points at 3 months, (2.4±0.2) at 1 year, and (2.0±0.1) at last fellow-up.The statistical analysis of the results showed a significant improvement of pain at 3 months (P<0.05) when compared to the preoperative status.The preoperative JOA score was (4.2±1.7) in all patients, improving to (7.8±2.5) points at 3 months, (8.5±2.7) at 1 year, and (9.0±1.0) at last fellow-up.The mean recovery rate for the total JOA score was (72%±8%). Differences in the overall JOA Scores showed significant postoperative improvement.Frankel grade improved by either 1 or 2 grades in 16 patients at the last follow-up.None of the patients showed any signs of instrument migration or failure during follow-up. CONCLUSION The results suggested that the procedure achieved a total resection of the ossified posterior longitudinal ligament.The treatment method with posterior transpedicular osteotomy and circumferential decompression was found to be safe, effective, reliable, and technically feasible.
Collapse
Affiliation(s)
- Q S Zhuang
- Department of Spine Surgery, Weifang People's Hospital, Shandong
| | | | | | | | | | | |
Collapse
|
16
|
Men XM, Deng B, Tao X, Qi KK, Xu ZW. Association Analysis of Myosin Heavy-chain Genes mRNA Transcription with the Corresponding Proteins Expression of Longissimus Muscle in Growing Pigs. Asian-Australas J Anim Sci 2016; 29:457-63. [PMID: 26949945 PMCID: PMC4782079 DOI: 10.5713/ajas.15.0259] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 07/13/2015] [Accepted: 08/24/2015] [Indexed: 11/27/2022]
Abstract
The goal of this work was to investigate the correlations between MyHC mRNA transcription and their corresponding protein expressions in porcine longissimus muscle (LM) during postnatal growth of pigs. Five DLY (Duroc×Landrace×Yorkshire) crossbred pigs were selected, slaughtered and sampled at postnatal 7, 30, 60, 120, and 180 days, respectively. Each muscle was subjected to quantity MyHCs protein contents through an indirect enzyme-linked immunosorbent assay (ELISA), to quantity myosin heavy-chains (MyHCs) mRNA abundances using real-time polymerase chain reaction. We calculated the proportion (%) of each MyHC to total of four MyHC for two levels, respectively. Moreover, the activities of several key energy metabolism enzymes were determined in LM. The result showed that mRNA transcription and protein expression of MyHC I, IIa, IIx and IIb in LM all presented some obvious changes with postnatal aging of pigs, especially at the early stage after birth, and their mRNA transcriptions were easy to be influenced than their protein expressions. The relative proportion of each MyHC mRNA was significantly positively related to that of its corresponding protein (p<0.01), and MyHC I mRNA proportion was positively correlated with creatine kinase (CK), succinate dehydrogenase (SDH), malate dehydrogenase (MDH) activities (p<0.05). These data suggested that MyHC mRNA transcription can be used to reflect MyHC expression, metabolism property and adaptive plasticity of porcine skeletal muscles, and MyHC mRNA composition could be a molecular index reflecting muscle fiber type characteristics.
Collapse
|
17
|
Han SL, Wan SL, Li QT, Xu DT, Zang HM, Chen NJ, Chen LY, Zhang WP, Luan C, Yang F, Xu ZW. Is vertebroplasty a risk factor for subsequent vertebral fracture, meta-analysis of published evidence? Osteoporos Int 2015; 26:113-22. [PMID: 25149856 DOI: 10.1007/s00198-014-2848-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 08/10/2014] [Indexed: 10/24/2022]
Abstract
UNLABELLED In our paper, we systemically retrieved the eligible study evaluating whether increased incidence of subsequent vertebral fracture is associated with vertebroplasty. Main effect sizes were vertebral fracture rates reported in terms of hazard ratio (HR) for time-to-event data or relative risk (RR) for dichotomous outcome. Our results do not support the hypothesis that vertebroplasty contributes to increased risk of subsequent vertebral fracture, neither adjacent nor total vertebral fracture. INTRODUCTION Vertebroplasty has been implicated in significant changes in vertebral strength, vertebral shape, and consequently increased risk for subsequent vertebral fracture, especially the adjacent level. Here, we further tested the hypothesis whether new-onset vertebral fracture is a natural result of osteoporosis or consequence of cement augmentation. METHODS Relevant literatures were retrieved using PubMed, Web of Knowledge, and Cochrane Central Register of Controlled Trials (CENTRAL), supplemented by a hand-search of the reference lists of selected articles. Eligible studies assessed whether increased morbidity of subsequent vertebral fracture is associated with vertebroplasty. Main effect sizes were vertebral fracture rates reported in terms of hazard ratio (HR) for time-to-event data or relative risk (RR) for dichotomous outcome. Random-effects model was used to account for clinical or methodological heterogeneity across studies. RESULTS Thirteen studies with a number of 2,551 individuals (1,631 in vertebroplasty group and 920 in control group) were suitable for this meta-analysis. In trials that reported adjacent vertebral fracture as time-to-event data (two trials, n = 328), we found a similar incidence of vertebral fracture in percutaneous vertebroplasty (PVP) group compared to conservative therapy (HR 0.60, 95% confidence interval 0.29 to 1.26; P = 0.18). In trials that reported overall vertebral fracture as time-to-event data (three trials, n = 704), vertebroplasty was associated with a slightly increased but non-significant risk for vertebral fracture (HR 1.14, 95% confidence interval 0.65 to 2.00; P = 0.65). The outcome was further confirmed in the secondary meta-analysis of studies that reported vertebral fracture as dichotomous data. Subgroup analysis according to study design revealed no difference either. CONCLUSIONS Our results do not support the hypothesis that vertebroplasty contributes to increased risk of subsequent vertebral fracture, neither adjacent nor total vertebral fracture. However, adequately designed randomized controlled trials are warranted to confirm the present findings.
Collapse
Affiliation(s)
- S L Han
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, Zhejiang, 310016, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Xu ZW, Lun DX. Surgical management of multilevel cervical spinal stenosis and spinal cord injury complicated by cervical spine fracture. J Orthop Surg Res 2014; 9:77. [PMID: 25142353 PMCID: PMC4143576 DOI: 10.1186/s13018-014-0077-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Accepted: 08/08/2014] [Indexed: 11/14/2022] Open
Abstract
Background There are few reports regarding surgical management of multilevel cervical spinal stenosis with spinal cord injury. Our purpose is to evaluate the safety and feasibility of open-door expansive laminoplasty in combination with transpedicular screw fixation for the treatment of multilevel cervical spinal stenosis and spinal cord injury in the trauma population. Methods This was a retrospective study of 21 patients who had multilevel cervical spinal stenosis and spinal cord injury with unstable fracture. An open-door expansive posterior laminoplasty combined with transpedicular screw fixation was performed under persistent intraoperative skull traction. Outcome measures included postoperative improvement in Japanese Orthopedic Association (JOA) score and incidence of complications. Results The average operation time was 190 min, with an average blood loss of 437 ml. A total of 120 transpedicular screws were implanted into the cervical vertebrae between vertebral C3 and C7, including 20 into C3, 34 into C4, 36 into C5, 20 into C6, and 10 into C7. The mean preoperative JOA score was 3.67 ± 0.53. The patients were followed for an average of 17.5 months, and the average JOA score improved to 8.17 ± 1.59, significantly higher than the preoperative score (t = 1.798, P < 0.05), with an average improvement of 44.7 ± 11.7%. Postoperative complications in four patients included cerebrospinal fluid leakage, delayed wound healing, pulmonary infection, and urinary system infection. All four patients were responsive to antibiotic treatment; one died from respiratory failure 3 months postoperatively. Conclusions The open-door expansive laminoplasty combined with posterior transpedicular screw fixation is feasible for treating multilevel cervical spinal stenosis and spinal cord injury complicated by unstable fracture. Its advantages include minimum surgical trauma, less intraoperative blood loss, and satisfactory stable supportive effect for reduction of fracture.
Collapse
Affiliation(s)
| | - Deng-Xing Lun
- Department of Spine Surgery, Weifang People's Hospital, Guangwen Road, Kuiwen District, Weifang 261041, Shandong, China.
| |
Collapse
|
19
|
Xu ZW, Fang FZ, Zhang SJ, Zhang XD, Hu XT, Fu YQ, Li L. Fabrication of micro DOE using micro tools shaped with focused ion beam. Opt Express 2010; 18:8025-8032. [PMID: 20588646 DOI: 10.1364/oe.18.008025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
A novel method is proposed to fabricate micro Diffractive Optical Elements (DOE) using micro cutting tools shaped with focused ion beam (FIB) milling. Micro tools with nanometric cutting edges and complicated shapes are fabricated by controlling the tool facet's orientation relative to the FIB. The tool edge radius of less than 30 nm is achieved for the nano removal of the work materials. Semi-circular micro tools and DOE-shaped micro tools are developed to fabricate micro-DOE and sinusoidal modulation templates. Experiments show that the proposed method can be a high efficient way in fabricating micro-DOE with nanoscale surface finishes.
Collapse
Affiliation(s)
- Z W Xu
- State Key Laboratory of Precision Measuring Technology & Instruments Centre of MicroNano Manufacturing Technology, Tianjin University, 300072, China
| | | | | | | | | | | | | |
Collapse
|
20
|
Xu ZW, Zhuang QS, Wang BW, Sui GX, Li F, Liu WQ, Ji XB. [The biomechanical study and clinical application of monosegmental pedicle instrumentation by endplate method in the fracture vertebrae for thoracolumbar fracture]. Zhonghua Wai Ke Za Zhi 2009; 47:194-196. [PMID: 19563073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To evaluate the biomechanical and clinical effect of the treatment of thoracolumbar fracture with monosegmental pedicle instrumentation in the fracture vertebrae by endplate method. METHODS Twenty-four porcine thoracolumbal spinal model, divided into four groups randomly, compared the stability of these four groups through pull-out testing. Retrospective study of 49 patients with thoracolumbar fracture who were treated with this technique, to observe the fusion of bone graft, the height of the anterior and posterior range, the angle of kyphosis and the volume of spinal canal, the loss of rectification, low back pain, and the limitation of activity of lumbar. RESULTS The endplate method group is more stability than the parallel method group, and the pedicle screw in the fracture vertebrae can get enough stability. After operation all 49 cases achieved satisfactory reduction, strong bone fusion, no reduction loss, no refractoriness low back pain, limitation of motion of lumbar et al. CONCLUSION Monosegmental pedicle instrumentation by endplate method in the fracture vertebrae for thoracolumbar fracture can get enough extraction stability, and get satisfied clinical effect.
Collapse
Affiliation(s)
- Zhao-Wan Xu
- Department of Spinal Surgery, Weifang People's Hospital, Shandong Province, Weifang 261041, China
| | | | | | | | | | | | | |
Collapse
|
21
|
Zhang QR, Du W, Pan BC, Pan BJ, Zhang WM, Zhang QJ, Xu ZW, Zhang QX. A comparative study on Pb2+, Zn2+ and Cd2+ sorption onto zirconium phosphate supported by a cation exchanger. J Hazard Mater 2008; 152:469-75. [PMID: 17706343 DOI: 10.1016/j.jhazmat.2007.07.012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2007] [Revised: 07/04/2007] [Accepted: 07/04/2007] [Indexed: 05/16/2023]
Abstract
In the present study, a novel hybrid sorbent ZrP-001 was prepared by loading zirconium phosphate (ZrP) onto a strongly acidic cation exchanger D-001. Sorption behavior of Pb(2+), Zn(2+), and Cd(2+) onto ZrP-001 was experimentally examined by comparing with the host exchanger D-001. ZrP-001 was characterized by scanning electron micrograph (SEM), X-ray diffraction (XRD), thermogravimetric analysis (TGA), pH-titration and pore size distribution analysis. Sorption of the heavy metals onto ZrP-001 was found to be pH-dependent due to the ion exchange mechanism. Compared to D-001, a smaller pore size of ZrP-001 due to the ZrP dispersion consequently resulted in a lower sorption rate. Competitive effect of Ca(2+) on sorption of heavy metals onto ZrP-001 and D-001 was compared to elucidate sorption preference of the hybrid sorbent towards heavy metals. More favorable sorption of ZrP-001 than D-001 was observed for all the three metals and their sorption preference onto ZrP-001 followed the order Pb(2+)>>Zn(2+) approximately Cd(2+). Fixed-bed sorption results and its efficient regeneration property further demonstrated that ZrP-001 is a potential candidate for removing heavy metals from contaminated water.
Collapse
Affiliation(s)
- Q R Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, Nanjing University, Nanjing 210093, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
22
|
Pan BC, Zhang QR, Zhang WM, Pan BJ, Du W, Lv L, Zhang QJ, Xu ZW, Zhang QX. Highly effective removal of heavy metals by polymer-based zirconium phosphate: A case study of lead ion. J Colloid Interface Sci 2007; 310:99-105. [PMID: 17336317 DOI: 10.1016/j.jcis.2007.01.064] [Citation(s) in RCA: 100] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2006] [Revised: 01/11/2007] [Accepted: 01/19/2007] [Indexed: 11/20/2022]
Abstract
Zirconium phosphate (ZrP) has recently been demonstrated as an excellent sorbent for heavy metals due to its high selectivity, high thermal stability, and absolute insolubility in water. However, it cannot be readily adopted in fixed beds or any other flowthrough system due to the excessive pressure drop and poor mechanical strength resulting from its fine submicrometer particle sizes. In the present study a hybrid sorbent, i.e., polymer-supported ZrP, was prepared by dispersing ZrP within a strongly acidic cation exchanger D-001 and used for enhanced lead removal from contaminated waters. D-001 was selected as a host material for sorbent preparation mainly because of the Donnan membrane effect resulting from the nondiffusible negatively charged sulfonic acid group on the exchanger surface, which would enhance permeation of the targeted metal ions. The hybrid sorbent (hereafter denoted ZrP-001) was characterized using a nitrogen adsorption technique, scanning electron microscope (SEM), and X-ray diffraction (XRD). Lead sorption onto ZrP-001 was found to be pH dependent due to the ion-exchange mechanism, and its sorption kinetics onto ZrP-001 followed the pseudo-first-order model. Compared to D-001, ZrP-001 exhibited more favorable lead sorption particularly in terms of high selectivity, as indicated by its substantially larger distribution coefficients when other competing cations Na(+), Ca(2+), and Mg(2+) coexisted at a high level in solution. Fixed-bed column runs showed that lead sorption on ZrP-001 resulted in a conspicuous decrease of this toxic metal from 40 mg/L to below 0.05 mg/L. By comparison with D-001 and ZrP-CP (ZrP dispersion within a neutrally charged polymer CP), enhanced removal efficiency of ZrP-001 resulted from the Donnan membrane effect of the host material D-001. Moreover, its feasible regeneration by diluted acid solution and negligible ZrP loss during operation also helps ZrP-001 to be a potential candidate for lead removal from water. Thus, all the results suggested that ZrP-001 offers excellent potential for lead removal from contaminated water.
Collapse
Affiliation(s)
- B C Pan
- Department of Environmental Engineering, and State Key Laboratory of Pollution Control and Resources Reuse, Nanjing University, Nanjing 210093, People's Republic of China.
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Zhang WM, Zhang QJ, Pan BC, Lv L, Pan BJ, Xu ZW, Zhang QX, Zhao XS, Du W, Zhang QR. Modeling synergistic adsorption of phenol/aniline mixtures in the aqueous phase onto porous polymer adsorbents. J Colloid Interface Sci 2007; 306:216-21. [PMID: 17118387 DOI: 10.1016/j.jcis.2006.10.056] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2006] [Revised: 10/20/2006] [Accepted: 10/20/2006] [Indexed: 11/26/2022]
Abstract
The adsorption equilibria of phenol and aniline on nonpolar polymer adsorbents (NDA-100, XAD-4, NDA-16 and NDA-1800) were investigated in single- and binary-solute adsorption systems at 313 K. The results showed that all the adsorption isotherms of phenol and aniline on these adsorbents can be well fitted by Freundlich and Langmuir equations, and the experimental uptake of phenol and aniline in all binary-component systems is obviously higher than predicted by the extended Langmuir model, arising presumably from the synergistic effect caused by the laterally acid-base interaction between the adsorbed phenol and aniline molecules. A new model (MELM) was developed to quantitatively describe the synergistic adsorption behavior of phenol/aniline equimolar mixtures in the binary-solute systems and showed a marked improvement in correlating the binary-solute adsorption of phenol and aniline by comparison with the widely used extended Langmuir model. The newly developed model confirms that the synergistic coefficient of one adsorbate is linearly correlated with the adsorbed amount of the other, and the larger average pore size of adsorbent results in the greater synergistic effect of phenol/aniline equimolar mixtures adsorption.
Collapse
Affiliation(s)
- W M Zhang
- State Key Laboratory of Pollution Control and Resources Reuse, Nanjing University, Nanjing 210093, People's Republic of China.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Ozawa F, Friess H, Kleeff J, Xu ZW, Zimmermann A, Sheikh MS, Büchler MW. Effects and expression of TRAIL and its apoptosis-promoting receptors in human pancreatic cancer. Cancer Lett 2001; 163:71-81. [PMID: 11163110 DOI: 10.1016/s0304-3835(00)00660-1] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Pancreatic cancer cells are usually resistant to apoptosis mediated by tumor necrosis factor (TNF)-alpha or FasL, and their toxicity towards normal cells hampers their application for therapeutic use. TNF-related apoptosis-inducing ligand (TRAIL), a novel member of the TNF family, triggers apoptosis in a variety of malignant cells, but exhibits less cytotoxicity in normal cells. To investigate the therapeutic potential of TRAIL, we analyzed the expression of TRAIL and its apoptosis-inducing receptors (DR4 and DR5) in the normal and cancerous human pancreas, and the sensitivity of pancreatic cancer cells to TRAIL cytotoxicity. TRAIL, DR4 and DR5 mRNA levels were concomitantly increased in pancreatic cancers compared with normal controls (P<0.01), and there were positive correlations between the expression levels of TRAIL and DR4, TRAIL and DR5 and between DR4 and DR5 mRNA (r=0.85, r=0.87, r=0.91; P<0.01). Immunostaining revealed the presence of the corresponding proteins frequently within the same cancer cells. In five pancreatic cancer cell lines, TRAIL, DR4 and DR5 mRNA expression was detectable at various levels. However, independent of the presence of DR4 and DR5, TRAIL cytotoxicity assays revealed that pancreatic cancer cells showed a significantly lower sensitivity (LD(50)>85 ng/ml) to TRAIL treatment than Jurkat T lymphoma cells (LD(50)=7.2 ng/ml). These findings show that pancreatic cancers are insensitive towards TRAIL-mediated apoptosis despite expression of TRAIL and its receptors, suggesting the presence of mediators which inhibit the TRAIL cell-death-inducing pathway in pancreatic cancer cells.
Collapse
MESH Headings
- Adult
- Aged
- Apoptosis
- Apoptosis Regulatory Proteins
- Blotting, Northern
- Blotting, Western
- Cell Survival/drug effects
- Dose-Response Relationship, Drug
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Immunohistochemistry
- Male
- Membrane Glycoproteins/genetics
- Membrane Glycoproteins/metabolism
- Membrane Glycoproteins/pharmacology
- Middle Aged
- Pancreas/chemistry
- Pancreas/metabolism
- Pancreas/pathology
- Pancreatic Neoplasms/genetics
- Pancreatic Neoplasms/metabolism
- Pancreatic Neoplasms/pathology
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Receptors, TNF-Related Apoptosis-Inducing Ligand
- Receptors, Tumor Necrosis Factor/genetics
- Receptors, Tumor Necrosis Factor/metabolism
- Receptors, Tumor Necrosis Factor, Member 25
- TNF-Related Apoptosis-Inducing Ligand
- Tumor Cells, Cultured/cytology
- Tumor Cells, Cultured/drug effects
- Tumor Cells, Cultured/metabolism
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/metabolism
- Tumor Necrosis Factor-alpha/pharmacology
Collapse
Affiliation(s)
- F Ozawa
- Department of Visceral and Transplantation Surgery, University of Bern, Inselspital, CH-3010 Bern, Switzerland
| | | | | | | | | | | | | |
Collapse
|
25
|
Kuroda M, Mimaki Y, Sashida Y, Umegaki E, Yamazaki M, Chiba K, Mohri T, Kitahara M, Yasuda A, Naoi N, Xu ZW, Li MR. Flavonol glycosides from Epimedium sagittatum and their neurite outgrowth activity on PC12h cells. Planta Med 2000; 66:575-577. [PMID: 10985091 DOI: 10.1055/s-2000-8611] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The MeOH extract of Epimedium sagittatum was found to show neurite outgrowth activity on cultured PC12h cells. Bioassay-guided fractionation of the MeOH extract yielded six prenylated flavonol glycosides, ikarisoside A (1), icarisid II (2), epimedoside A (3), icariin (4), epimedin B (5), and epimedokoreanoside-I (6) as the active ingredients.
Collapse
|
26
|
Liu ZL, Hennessy S, Strom BL, Tsai TF, Wan CM, Tang SC, Xiang CF, Bilker WB, Pan XP, Yao YJ, Xu ZW, Halstead SB. Short-term safety of live attenuated Japanese encephalitis vaccine (SA14-14-2): results of a randomized trial with 26,239 subjects. J Infect Dis 1997; 176:1366-9. [PMID: 9359740 DOI: 10.1086/517323] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The short-term safety of an effective and inexpensive new live attenuated Japanese encephalitis vaccine (SA14-14-2) was studied in a randomized trial, using block randomization. Of 26,239 children who were enrolled, half received the vaccine and half served as controls. Subjects were prospectively followed for 30 days for severe adverse events, such as encephalitis, meningitis, and "all-cause" hospitalization. No cases of encephalitis or meningitis occurred in either group. The upper 95% confidence limit for adverse events not occurring among subjects receiving their first dose was 4.1/10,000. Risk ratios and 95% confidence intervals for other adverse events were 0.70 (0.43-1.15) for all-cause hospitalization, 0.91 (0.37-2.22) for seizure, and 0.79 (0.56-1.11) for fever lasting > or = 3 days. These data attest to the short-term safety of the SA14-14-2 virus strain and the hamster kidney cell substrate.
Collapse
Affiliation(s)
- Z L Liu
- Department of Pediatrics, West China University of Medical Sciences, and Chengdu Anti-epidemic Station, Sichuan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Xu ZW. [A preliminary study on the usefulness of the plasmid profile analysis for the epidemiological investigation of shigellosis]. Zhonghua Liu Xing Bing Xue Za Zhi 1986; 7:329-31. [PMID: 3545491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
28
|
Xu ZW. [Studies on the hemostatic constituents of the leaves of Biota orientalis]. Zhong Yao Tong Bao 1983; 8:30-2. [PMID: 6222809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|