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Min J, Chen YY, Wang QM, Yang YQ. Effect of perioperative "Internet + rehabilitation guidance" based on IKAP theory on short-term prognosis of patients with esophageal cancer. Eur Rev Med Pharmacol Sci 2024; 28:2329-2339. [PMID: 38567596 DOI: 10.26355/eurrev_202403_35738] [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: 04/04/2024]
Abstract
OBJECTIVE The aim of the study was to investigate the "Internet + rehabilitation guidance" under the theory of Information-Knowledge-Attitude-Practice (IKAP) in patients with esophageal cancer during the perioperative period and to analyze the influence on the short-term prognosis of patients with esophageal cancer. PATIENTS AND METHODS From April 2022 to February 2023, 118 patients who underwent radical esophagectomy in the First Hospital of Huai'an Affiliated Hospital of Nanjing Medical University were enrolled using the convenience sampling method. They were divided into the IKAP group (59 cases) and the Control Group (Group C) (59 cases), according to the random number table method. The conventional intervention was performed during the perioperative period, and the IKAP group was also given "Internet + rehabilitation guidance" based on IKAP theory. The first postoperative defecation time, exhaust time, feeding time, discharge time, and postoperative complication rate of the two groups were compared. Meanwhile, blood samples were collected before surgery and 1, 3, 7, and 30 days after surgery (at outpatient review) for the detection of inflammatory factor indexes and nutritional indexes. RESULTS Patients within the IKAP group showed a shorter first postoperative exhaust and defecation time, eating time, and hospital compared to the control group (p<0.05). Before surgery, there was no significant difference in serum inflammatory factors and nutritional indexes between the two groups (p>0.05). Comparing the levels of serum inflammatory factors in the two groups after surgery, the levels of CRP and IL-6 in the IKAP group were lower than those in the control group on days 1, 3, and 7 after surgery. After 30 days, the serum CRP level was found to be lower than the control group, but no statistical difference with the control level of serum IL-6 (p<0.05) was found. Compared with the serum nutritional index levels in the two groups: 1 d after surgery, the serum HGB, PA, and TRF levels were not different (p>0.05). The serum ALB level in the IKAP group was higher than that in the control group (p<0.05). Postoperative 3 d, 7 d, the serum levels of HGB, ALB, PA, and TRF in the IKAP group were higher than those in the control group (p<0.05). After 30 d, there was no statistical difference in serum HGB levels between the two groups (p<0.05); Serum ALB, PA, and TRF levels in the IKAP group were higher than those in the control group (p<0.05). From preoperative to 30 days after surgery, serum CRP and IL-6 levels in 2 groups were first increased and then decreased, while serum HGB, ALB, PA, and TRF levels were first decreased and then increased. After surgery, the IKAP group showed a greater incidence of complications in patients than in controls (p<0.05). CONCLUSIONS In patients with esophageal cancer, perioperative "Internet + rehabilitation guidance" based on IKAP theory can effectively shorten the postoperative gastrointestinal function recovery time and rapidly reduce the inflammatory response, improving the nutritional status of the body, thereby reducing the risk of short-term postoperative complications.
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Affiliation(s)
- J Min
- Cardiothoracic Surgery Department, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, China.
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Chen YC, Wang QM, Chen L, Zhu MH, Zhang J. [Arf6 regulates endometriotic epithelial-mesenchymal transition and mitochondrial distribution]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:442-448. [PMID: 35775252 DOI: 10.3760/cma.j.cn112141-20220126-00050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the role of adenosine diphosphate ribosylation factor 6 (Arf6) in the pathogenesis of endometriosis. Methods: Endometrial tissues were sampled from women who were hospitalized in the Affiliated Hospital of Medical School of Ningbo University and Ningbo Women and Children's Hospital from November 2020 to May 2021 with endometriosis (n=44, endometriosis group) and without endometriosis (n=17, control group). The expression of Arf6 protein in the endometrial tissues was detected by western blot. Endometrial epithelial cells from both groups were primary cultured and the distribution of intracellular mitochondria was detected by immunofluorescence. The expression of Arf6 protein was down-regulated by small interference RNA (siRNA), the distribution of mitochondria in cells with decreased Arf6 protein expression was observed, and the expression of mitochondria-related proteins development and differentiation enhancing factor 1 (DDEF1, also called AMAP1), reactive oxygen species 1 (ROS1) and epithelial-mesenchymal transition (EMT)-related proteins E-cadherin, vimentin were detected. Transwell assay was used to detect the changes in the migration ability of the cells. Results: Compared with the control group, ectopic endometrial tissue of endometriosis group showed high expression of Arf6 protein (0.174±0.019 vs 0.423±0.033; t=29.630, P<0.01); and in ectopic endometrial epithelial cells, mitochondria were distributed near the edge of the cell membrane. While Arf6 expression was down-regulated by siRNA, the distribution of mitochondria in ectopic cells returned to natural, close to the control level. In addition, the expression levels of AMAP1 and ROS1 in ectopic cells after Arf6 protein knockdown were significantly decreased. Transwell assay results indicated that knockdown of Arf6 could reduce the migration ability of ectopic epithelial cells [migration cell count: (34.3±7.5) cells]; and immunofluorescence verified low expression of E-cadherin but high expression of vimentin in ectopic epithelial cells, whereas knockdown of Arf6 protein E-cadherin expression increased but vimentin expression decreased. Conclusions: High expression of Arf6 protein in ectopic endometrial epithelial cells leads to the distribution of mitochondria tending to membrane marginalization, while inducing EMT, which are involved in the mechanism of endoheterosis pathogenesis.
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Affiliation(s)
- Y C Chen
- Department of Obstetrics and Gynecology, Ningbo Women and Children's Hospital, Ningbo 315012, China
| | - Q M Wang
- Department of Obstetrics and Gynecology, Ningbo Women and Children's Hospital, Ningbo 315012, China
| | - L Chen
- Department of Obstetrics and Gynecology, Ningbo Women and Children's Hospital, Ningbo 315012, China
| | - M H Zhu
- Department of Obstetrics and Gynecology, the Affiliated Hospital of Medical School of Ningbo University, Ningbo 315020, China
| | - J Zhang
- Department of Obstetrics and Gynecology, Ningbo Women and Children's Hospital, Ningbo 315012, China
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Yang N, Zhao W, Pan Y, Lyu XZ, Hao XY, Qi WA, Du L, Liu EM, Chen T, Zhang WS, Zhang CF, Zhu GN, Wang QM, Meng WB, Liang YB, Jin YH, Wang W, Xing D, Tian JH, Ma B, Wang XH, Song XP, Ge L, Yang KH, Liu XQ, Wei JM, Chen Y. [Development of a Ranking Tool for Scientificity, Transparency and Applicability of Clinical Practice Guidelines]. Zhonghua Yi Xue Za Zhi 2022; 102:1-10. [PMID: 35701091 DOI: 10.3760/cma.j.cn112137-20220219-00340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To address the limitations of existing methods and tools for evaluating clinical practice guidelines, we aimed to develop a comprehensive instrument focusing on the three main dimensions of guideline development: scientificity, transparency, applicability. We will use it to rank the guidelines according to the scores. We abbreviated it as STAR, and its reliability, validity and usability were also tested. Methods: A multidisciplinary expert working group was set up, including methodologists, statisticians, journal editors, medical professionals, and others. Scoping review, Delphi methods and hierarchical analysis were used to determine the final checklist of STAR. Results: The new instrument contained 11 domains and 39 items. Intrinsic reliability of each domain was indicated by Cronbach's α coefficient, with a average value of 0.646. The Cohen's kappa coefficients for methodological evaluators and clinical evaluators were 0.783 and 0.618. The overall content validity index was 0.905. The R2 for the criterion validity analysis was 0.76. The average score for usability of the items was 4.6, and the mean time spent to evaluate each guideline was 20 minutes. Conclusion: The instrument has good reliability, validity and evaluating efficiency, and can be used for evaluating and ranking guidelines more comprehensively.
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Affiliation(s)
- N Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - W Zhao
- General Editorial Office, Chinese Medical Association Publishing House, Beijing 100052, China
| | - Y Pan
- Marketing and Sales Department, Chinese Medical Association Publishing House, Beijing 100052, China
| | - X Z Lyu
- Editorial Department, Chinese Medical Journal, Chinese Medical Association Publishing House, Beijing 100052, China
| | - X Y Hao
- Editorial Department, Chinese Medical Journal (English Edition), Chinese Medical Association Publishing House, Beijing 100052, China
| | - W A Qi
- Editorial Department, British Medical Journal (Chinese Edition), Chinese Medical Association Publishing House, Beijing 100052, China
| | - L Du
- Evidence-Based Medicine Center, West China School of Medicine, West China Hospital, Sichuan University, Chengdu 610041
| | - E M Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014
| | - T Chen
- Department of Hematology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - W S Zhang
- Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - C F Zhang
- Children's Hospital of Fudan University, Shanghai 201102, China
| | - G N Zhu
- Department of Dermatology, Xijing Hospital, Xi'an 710032, China
| | - Q M Wang
- Department of Medical Oncology, Henan Cancer Hospital, Zhengzhou 450008, China
| | - W B Meng
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Y B Liang
- Department of Ophthalmology, The Eye Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Y H Jin
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - W Wang
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, China
| | - D Xing
- Department of Trauma and Orthopaedics, Peking University People's Hospital, Beijing 100044, China
| | - J H Tian
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - B Ma
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - X H Wang
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - X P Song
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - L Ge
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - K H Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - X Q Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union & Peking Union Medical College, Beijing 100730
| | - J M Wei
- Chinese Medical Association Publishing House, Beijing 100052, China
| | - Yaolong Chen
- Research Unit of Evidence-Based Evaluation and Guidelines (2021RU017), Chinese Academy of Medical Sciences, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China Guidelines and Standards Research Center, Chinese Medical Association Publishing House, Beijing 100052, China
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Zhu JY, Mei ZB, Zhang ZJ, Yang W, Zhao WW, Xu J, Zou QQ, Wang QM. [Clinical efficacy of the modified separation of external anal sphincter for the treatment of high horseshoe anal fistula]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:1111-1115. [PMID: 34923798 DOI: 10.3760/cma.j.cn441530-20201031-00581] [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: 06/14/2023]
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Wang S, Li SM, Wu X, Zhu H, Wang QM. [Crizotinib treatment for a lung adenocarcinoma patient with anaplastic lymphoma kinase gene rearrangement and disseminated intravascular coagulation]. Zhonghua Zhong Liu Za Zhi 2021; 43:1195-1196. [PMID: 34794223 DOI: 10.3760/cma.j.cn112152-20200611-00549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S Wang
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - S M Li
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - X Wu
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - H Zhu
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - Q M Wang
- Department of Respiratory Medicine, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
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Zeng QL, Wang QM, Tao LJ, Hao F, Luo QZ. [Establishment of nomogram predicting model for the death risk of extremely severe burn patients and the predictive value]. Zhonghua Shao Shang Za Zhi 2020; 36:845-852. [PMID: 32972070 DOI: 10.3760/cma.j.cn501120-20190620-00280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the death risk factors of extremely severe burn patients, establish a death risk nomogram predicting model, and investigate the predictive value for death risk of extremely severe burn patients. Methods: The medical records of 231 extremely severe burn patients (190 males and 41 females, aged 18-60 years) who were admitted to the Institute of Burn Research of the First Affiliated Hospital of Army Medical University from January 2010 to October 2018 and met the inclusion criteria were analyzed retrospectively. According to the final outcome, the patients were divided into survival group of 173 patients and death group of 58 patients. The sex, age, severity of inhalation injury, total burn area, full-thickness burn area, burn index, rehydration coefficient and urine volume coefficient of the first and second 24 h after injury, the first base excess, shock index, and hematocrit (HCT) after admission, whether to have pre-hospital fluid infusion, use of ventilator, and use of continuous renal replacement therapy (CRRT), and abbreviated burn severity index (ABSI ) and Baux score on admission of patients in the two groups were recorded or calculated. According to the use of ventilator, the patients were divided into with ventilator group of 131 patients and without ventilator group of 100 patients, and the death, total burn surface area, burn index, incidence and severity of inhalation injury were recorded. According to the use of CRRT, the patients were divided into with CRRT group of 59 patients and without CRRT group of 172 patients, and the death, total burn surface area, and burn index were recorded. Data were statistically analyzed with t test, chi-square test, and Mann-Whitney U test to screen the death related factors of patients. The indexes with statistically significant differences between survival group and death group were included in the multivariate logistic regression analysis to screen the independent death risk factors of patients, and the death risk nomogram predicting model was constructed based on the results.The Bootstrap method was used to validate the death risk nomogram predicting model internally. The predictive value of the nomogram model for predicting death risk of patients was detected by drawing calibration graph and calculating concordance index, and the death risk scores of 231 patients were acquired according to the death risk nomogram model. The receiver's operating characteristic (ROC) curve was drawn, and the optimal threshold and the sensitivity and specificity of optimal threshold in the ROC curve and the area under the curve were calculated. Results: (1) There were statistically significant differences in burn index, ABSI on admission, severity of inhalation injury, total burn area, full-thickness burn area, rehydration coefficient at the first 24 h after injury, use of ventilator, use of CRRT, and Baux score on admission of patients between the two groups (Z=-7.696, -7.031, χ(2)=18.304, 63.065, 23.300, 13.073, 34.240, 59.586, t=-7.536, P<0.01). (2) There were statistically significant differences in death, incidence and severity of inhalation injury, total burn area, and burn index of patients between with ventilator group and without ventilator group (χ(2)=34.240, 17.394, 25.479, Z=-6.557, -7.049, P<0.01). (3) There were statistically significant differences in death, total burn area, and burn index of patients between with CRRT group and without CRRT group (χ(2)=62.982, Z= -47.421, -6.678, P<0.01). (4) The use of ventilator, use of CRRT, and burn index were independent risk factors for the death of extremely severe burn patients (odds ratio=3.277, 5.587, 1.067, 95% confidence interval=1.073-10.008, 2.384-13.093, 1.038-1.096, P<0.05 or P<0.01). (5) The initial concordance index of nomogram predicting model was 0.90 and the corrected concordance index was 0.89. The concordance indexes before and after correction were higher and similar, which showed that the nomogram had good concordance and predictive effect. The optimum threshold of ROC curve was 0.23, the sensitivity and specificity of optimum threshold were 86.0% and 80.0%, respectively, and the area under ROC curve was 0.90 (95% confidence interval=0.86-0.94, P<0.01). Conclusions: Severe burns and damage and/or failure of organ are the main death causes of extremely severe burn patients. The death risk nomogram predicting model established on the basis of use of ventilator, use of CRRT, and burn index have good predictive ability for death of extremely severe burn patients.
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Affiliation(s)
- Q L Zeng
- Department of Nursing, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - Q M Wang
- Department of Nursing, Chinese PLA General Hospital, Beijing 100853, China
| | - L J Tao
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burn Research, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - F Hao
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burn Research, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - Q Z Luo
- State Key Laboratory of Trauma, Burns and Combined Injury, Institute of Burn Research, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
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Chen GQ, Wang QM, Yu M, Cheng YD, Zhang ZC, Wang WS, Qiu Y, Sun LH, Peng K, Yang H. Notch signaling is involved in regulation of LPS-induced macrophage apoptosis through JNK/NF-kB signaling pathway. J BIOL REG HOMEOS AG 2020; 34:04. [PMID: 32048500 DOI: 10.23812/19-283-a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Notch signaling plays a critical role in the development and function of macrophages. The aim of the present study was to investigate the relationship between Notch signaling pathway and macrophage apoptosis after LPS stimulation. In RAW 264.7 cells, the mRNA expression of Jagged1, Hes1, Hes 5 and GM-CSF, and protein expression of NICD1 and GM-CSF were increased after LPS stimulation. Inhibition of Notch signaling by γ-secretase inhibitor DAPT and the suppression of Notch1 expression using siRNA both significantly prevented LPS induced activation of JNK and NF-kB, and simultaneously the expression of GM-CSF was also down regulated significantly. JNK inhibitor SP600125 was used to block the phosphorylation of JNK signaling, Western blot results showed that the activation of NF-kB was blocked and expression of GM-CSF was down-regulated. Finally, flow cytometry analyses showed that the Notch signaling was involved in the regulation of macrophage apoptosis after LPS stimulation. Our study showed that the Notch signaling pathway was activated and involved in the regulation of macrophage apoptosis after LPS stimulation through JNK/ NF-kB signaling regulated GM-CSF expression.
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Affiliation(s)
- G Q Chen
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Q M Wang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - M Yu
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Y D Cheng
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Z C Zhang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - W S Wang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - Y Qiu
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - L H Sun
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - K Peng
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
| | - H Yang
- Department of General Surgery, Xinqiao Hospital, Army Medical University, Chongqing, China
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Li AH, Yuan FX, Groenewald M, Bensch K, Yurkov AM, Li K, Han PJ, Guo LD, Aime MC, Sampaio JP, Jindamorakot S, Turchetti B, Inacio J, Fungsin B, Wang QM, Bai FY. Diversity and phylogeny of basidiomycetous yeasts from plant leaves and soil: Proposal of two new orders, three new families, eight new genera and one hundred and seven new species. Stud Mycol 2020; 96:17-140. [PMID: 32206137 PMCID: PMC7082220 DOI: 10.1016/j.simyco.2020.01.002] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Nearly 500 basidiomycetous yeast species were accepted in the latest edition of The Yeasts: A Taxonomic Study published in 2011. However, this number presents only the tip of the iceberg of yeast species diversity in nature. Possibly more than 99 % of yeast species, as is true for many groups of fungi, are yet unknown and await discovery. Over the past two decades nearly 200 unidentified isolates were obtained during a series of environmental surveys of yeasts in phyllosphere and soils, mainly from China. Among these isolates, 107 new species were identified based on the phylogenetic analyses of nuclear ribosomal DNA (rDNA) [D1/D2 domains of the large subunit (LSU), the small subunit (SSU), and the internal transcribed spacer region including the 5.8S rDNA (ITS)] and protein-coding genes [both subunits of DNA polymerase II (RPB1 and RPB2), the translation elongation factor 1-α (TEF1) and the mitochondrial gene cytochrome b (CYTB)], and physiological comparisons. Forty-six of these belong to 16 genera in the Tremellomycetes (Agaricomycotina). The other 61 are distributed in 26 genera in the Pucciniomycotina. Here we circumscribe eight new genera, three new families and two new orders based on the multi-locus phylogenetic analyses combined with the clustering optimisation analysis and the predicted similarity thresholds for yeasts and filamentous fungal delimitation at genus and higher ranks. Additionally, as a result of these analyses, three new combinations are proposed and 66 taxa are validated.
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Key Words
- Apiotrichum xylopini S.O. Suh, C.F. Lee, Gujjari & J.J. Zhou ex Kachalkin, Yurkov & Boekhout
- Bannozyma arctica Vishniac & M. Takash. ex Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout
- Basidiomycetous yeasts
- Begerowomyces Q.M. Wang & F.Y. Bai
- Begerowomyces foliicola Q.M. Wang, F.Y. Bai & A.H. Li
- Bensingtonia pseudorectispora Q.M. Wang, F.Y. Bai & A.H. Li
- Bensingtonia wuzhishanensis Q.M. Wang, F.Y. Bai & A.H. Li
- Boekhoutia Q.M. Wang & F.Y. Bai
- Boekhoutia sterigmata Q.M. Wang, F.Y. Bai & A.H. Li
- Bulleribasidium cremeum Q.M. Wang, F.Y. Bai & A.H. Li
- Bulleribasidium elongatum Q.M. Wang, F.Y. Bai & A.H. Li
- Bulleribasidium panici Fungsin, M. Takash. & Nakase ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Bulleribasidium phyllophilum Q.M. Wang, F.Y. Bai & A.H. Li
- Bulleribasidium phyllostachydis Q.M. Wang, F.Y. Bai & A.H. Li
- Bulleribasidium pseudopanici Q.M. Wang, F.Y. Bai & A.H. Li
- Bulleribasidium siamense Fungsin, M. Takash. & Nakase ex Q.M. Wang, F.Y. Bai, Boekhout & Nakase
- Carcinomyces arundinariae Fungsin, M. Takash. & Nakase ex Yurkov
- Carlosrosaea foliicola Q.M. Wang, F.Y. Bai & A.H. Li
- Carlosrosaea simaoensis Q.M. Wang, F.Y. Bai & A.H. Li
- Chrysozyma cylindrica Q.M. Wang, F.Y. Bai & A.H. Li
- Chrysozyma flava Q.M. Wang, F.Y. Bai & A.H. Li
- Chrysozyma fusiformis Q.M. Wang, F.Y. Bai & A.H. Li
- Chrysozyma iridis Q.M. Wang, F.Y. Bai & A.H. Li
- Chrysozyma pseudogriseoflava Q.M. Wang, F.Y. Bai & A.H. Li
- Chrysozyma rhododendri Q.M. Wang, F.Y. Bai & A.H. Li
- Chrysozyma sambuci Q.M. Wang, F.Y. Bai & A.H. Li
- Chrysozyma sorbariae Q.M. Wang, F.Y. Bai & A.H. Li
- Colacogloea aletridis Q.M. Wang, F.Y. Bai & A.H. Li
- Colacogloea hydrangeae Q.M. Wang, F.Y. Bai & A.H. Li
- Colacogloea rhododendri Q.M. Wang, F.Y. Bai & A.H. Li
- Colacogloea subericola (Belloch, Villa-Carv., Á;lv.-Rodríg. & Coque) Q.M. Wang, & F.Y. Bai
- Cystobasidium alpinum Turchetti, Selbmann, Onofri & Buzzini
- Cystobasidium portillonense Laich, Vaca & R. Chávez ex Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout
- Cystobasidium raffinophilum Q.M. Wang, F.Y. Bai & A.H. Li
- Cystobasidium terricola Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces bifurcus Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces cylindricus F.Y. Bai, Q.M. Wang & M. Takash. ex F.Y. Bai & Q.M. Wang
- Derxomyces elongatus Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces hubeiensis F.Y. Bai, Q.M. Wang & M. Takash. ex F.Y. Bai & Q.M. Wang
- Derxomyces longicylindricus Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces longiovatus Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces melastomatis Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces nakasei F.Y. Bai, Q.M. Wang & M. Takash. ex F.Y. Bai & Q.M. Wang
- Derxomyces napiformis Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces ovatus Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces polymorphus Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces pseudoboekhoutii Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces pseudoyunnanensis Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces taiwanicus Q.M. Wang, F.Y. Bai & A.H. Li
- Derxomyces xingshanicus Q.M. Wang, F.Y. Bai & A.H. Li
- Dioszegia heilongjiangensis Q.M. Wang, F.Y. Bai & A.H. Li
- Dioszegia kandeliae Q.M. Wang, F.Y. Bai, L.D. Guo & A.H. Li
- Dioszegia maotaiensis Q.M. Wang, F.Y. Bai & A.H. Li
- Dioszegia milinica Q.M. Wang, F.Y. Bai & A.H. Li
- Dioszegia ovata Q.M. Wang, F.Y. Bai & A.H. Li
- Dioszegia zsoltii F.Y. Bai, M. Takash. & Nakase
- F.Y. Bai, M. Groenew. & Boekhout
- Filobasidium dingjieense Q.M. Wang, F.Y. Bai & A.H. Li
- Filobasidium globosum Q.M. Wang, F.Y. Bai & A.H. Li
- Filobasidium mali Q.M. Wang, F.Y. Bai & A.H. Li
- Filobasidium mucilaginum Q.M. Wang, F.Y. Bai & A.H. Li
- Genolevuria bromeliarum Landell & P. Valente ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Genolevuria pseudoamylolytica Q.M. Wang, F.Y. Bai & A.H. Li
- Glaciozyma Turchetti, Connell, Thomas-Hall & Boekhout ex M. Groenew. & Q.M. Wang
- Glaciozyma antarctica (Fell, Statzell, I.L. Hunter & Phaff) M. Groenew. & Q.M. Wang
- Glaciozyma martinii Turchetti, Connell, Thomas-Hall & Boekhout
- Glaciozyma watsonii Turchetti, Connell, Thomas-Hall & Boekhout
- Heitmania cylindrica Q.M. Wang, F.Y. Bai & A.H. Li
- Heitmania tridentata Q.M. Wang, F.Y. Bai & A.H. Li
- Heitmaniaceae Q.M. Wang & F.Y. Bai
- Heitmaniales Q.M. Wang & F.Y. Bai
- Holtermannia saccardoi Q.M. Wang, F.Y. Bai & A.H. Li
- Jianyuniaceae Q.M. Wang & F.Y. Bai
- Kockovaella haikouensis Q.M. Wang, F.Y. Bai & A.H. Li
- Kockovaella ischaemi Q.M. Wang, F.Y. Bai & A.H. Li
- Kockovaella mexicana Lopandić, O. Molnár & Prillinger ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Kockovaella nitrophila Q.M. Wang, F.Y. Bai & A.H. Li
- Kondoa arboricola Q.M. Wang, F.Y. Bai & A.H. Li
- Kondoa chamaenerii Q.M. Wang, F.Y. Bai & A.H. Li
- Kondoa cylindrica Q.M. Wang, F.Y. Bai & A.H. Li
- Kondoa daliangziensis Q.M. Wang, F.Y. Bai & A.H. Li
- Kondoa foliicola Q.M. Wang, F.Y. Bai & A.H. Li
- Kondoa lulangica Q.M. Wang, F.Y. Bai & A.H. Li
- Kondoa myxariophila Q.M. Wang, F.Y. Bai & A.H. Li
- Kondoa rhododendri Q.M. Wang, F.Y. Bai & A.H. Li
- Kondoa ribitophobia Q.M. Wang, F.Y. Bai & A.H. Li
- Kondoa thailandica Fungsin, Hamam. & Nakase ex Q.M. Wang, M. Groenew., F.Y. Bai & Boekhout
- Kwoniella newhampshirensis K. Sylvester, Q.M. Wang & C.T. Hittinger
- Kwoniella ovata Q.M. Wang, F.Y. Bai & A.H. Li
- Kwoniella shandongensis R. Chen, Y.M. Jiang & S.C. Wei ex M. Groenew. & Q.M. Wang
- Leucosporidium creatinivorum (Golubev) M. Groenew. & Q.M. Wang
- Leucosporidium fragarium (J.A. Barnett & Buhagiar) M. Groenew. & Q.M. Wang
- Leucosporidium intermedium (Nakase & M. Suzuki) M. Groenew. & Q.M. Wang
- Leucosporidium muscorum (Di Menna) M. Groenew. & Q.M. Wang
- Leucosporidium yakuticum (Golubev) M. Groenew. & Q.M. Wang
- Meniscomyces Q.M. Wang & F.Y. Bai
- Meniscomyces layueensis Q.M. Wang, F.Y. Bai & A.H. Li
- Microbotryozyma swertiae Q.M. Wang, F.Y. Bai & A.H. Li
- Microsporomyces ellipsoideus Q.M. Wang, F.Y. Bai & A.H. Li
- Microsporomyces pseudomagnisporus Q.M. Wang, F.Y. Bai & A.H. Li
- Microsporomyces rubellus Q.M. Wang, F.Y. Bai & A.H. Li
- Molecular phylogeny
- Naganishia onofrii Turchetti, Selbmann & Zucconi ex Yurkov
- Naganishia vaughanmartiniae Turchetti, Blanchette & Arenz ex Yurkov
- Nielozyma Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Nielozyma formosana Nakase, Tsuzuki, F.L. Lee & M. Takash. ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Nielozyma melastomatis Nakase, Tsuzuki, F.L. Lee & M. Takash. ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Oberwinklerozyma dicranopteridis Q.M. Wang, F.Y. Bai & A.H. Li
- Oberwinklerozyma nepetae Q.M. Wang, F.Y. Bai & A.H. Li
- Oberwinklerozyma silvestris Golubev & Scorzetti ex Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout
- Oberwinklerozyma straminea Golubev & Scorzetti ex Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout
- Papiliotrema aspenensis (Ferreira-Paim, et al.) Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Papiliotrema baii Yurkov, M.A. Guerreiro & Á;. Fonseca ex Yurkov
- Papiliotrema frias V. de García, Zalar, Brizzio, Gunde-Cim. & Van Broock ex Yurkov
- Papiliotrema hoabinhensis D.T. Luong, M. Takash., Ty, Dung & Nakase ex Yurkov
- Papiliotrema japonica J.P. Samp., Fonseca & Fell ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Papiliotrema terrestris Crestani, Landell, Faganello, Vainstein, Vishniac & P. Valente ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Papiliotrema wisconsinensis K. Sylvester, Q.M. Wang & Hittinger ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Phaeotremella lactea Q.M. Wang, F.Y. Bai & A.H. Li
- Phaeotremella ovata Q.M. Wang, F.Y. Bai & A.H. Li
- Phaffia aurantiaca Q.M. Wang, F.Y. Bai & A.H. Li
- Phyllozyma aceris Q.M. Wang, F.Y. Bai & A.H. Li
- Phyllozyma jiayinensis Q.M. Wang, F.Y. Bai & A.H. Li
- Piskurozyma fildesensis T.T. Zhang & Li Y. Yu ex Yurkov
- Piskurozyma taiwanensis Nakase, Tsuzuki & M. Takash. ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Pseudobensingtonia fusiformis Q.M. Wang, F.Y. Bai & A.H. Li
- Pseudohyphozyma hydrangeae Q.M. Wang, F.Y. Bai & A.H. Li
- Pseudohyphozyma lulangensis Q.M. Wang, F.Y. Bai & A.H. Li
- Pseudoleucosporidium V. de García, et al. ex M. Groenew. & Q.M. Wang
- Pseudoleucosporidium fasciculatum (Babeva & Lisichk.) M. Groenew. & Q.M. Wang
- Pseudosterigmatospora Q.M. Wang & F.Y. Bai
- Pseudosterigmatospora motuoensis Q.M. Wang, F.Y. Bai & A.H. Li
- Pseudotremella lacticolour Satoh & Makimura ex Yurkov
- Rhodosporidiobolus fuzhouensis Q.M. Wang, F.Y. Bai & A.H. Li
- Rhodosporidiobolus jianfalingensis Q.M. Wang, F.Y. Bai & A.H. Li
- Rhodosporidiobolus platycladi Q.M. Wang, F.Y. Bai & A.H. Li
- Rhynchogastrema complexa (Landell, et al.) Xin Zhan Liu, F.Y. Bai, M. Groenew., Boekhout & Yurkov
- Rhynchogastrema fermentans (C.F. Lee) Xin Zhan Liu, F.Y. Bai, M. Groenew., Boekhout & Yurkov
- Rhynchogastrema glucofermentans (S.O. Suh & M. Blackw.) Xin Zhan Liu, F.Y. Bai, M. Groenew., Boekhout & Yurkov
- Rhynchogastrema nanyangensis F.L. Hui & Q.H. Niu ex Xin Zhan Liu, F.Y. Bai, M. Groenew., Boekhout & Yurkov
- Rhynchogastrema tunnelae (Boekhout, Fell, Scorzetti & Theelen) Xin Zhan Liu, F.Y. Bai, M. Groenew., Boekhout & Yurkov
- Rhynchogastrema visegradensis (G. Péter & Dlauchy) Xin Zhan Liu, F.Y. Bai, M. Groenew., Boekhout &Yurkov
- Robertozyma Q.M. Wang & F.Y. Bai
- Robertozyma ningxiaensis Q.M. Wang, F.Y. Bai & A.H. Li
- Rosettozyma Q.M. Wang & F.Y. Bai
- Rosettozyma cystopteridis Q.M. Wang, F.Y. Bai & A.H. Li
- Rosettozyma motuoensis Q.M. Wang, F.Y. Bai & A.H. Li
- Rosettozyma petaloides Q.M. Wang, F.Y. Bai & A.H. Li
- Rosettozymaceae Q.M. Wang & F.Y. Bai
- Rosettozymales Q.M. Wang & F.Y. Bai
- Ruinenia bangxiensis Q.M. Wang, F.Y. Bai & A.H. Li
- Ruinenia diospyri Nakase, Tsuzuki, F.L. Lee, Jindam. & M. Takash. ex Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout
- Ruinenia fanjingshanensis Q.M. Wang, F.Y. Bai & A.H. Li
- Ruinenia lunata Q.M. Wang, F.Y. Bai & A.H. Li
- Ruinenia pyrrosiae Nakase, Tsuzuki, F.L. Lee, Jindam. & M. Takash. ex Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout
- Saitozyma ninhbinhensis (D.T. Luong, M. Takash., Dung & Nakase)Yurkov
- Saitozyma paraflava Golubev & J.P. Samp. ex Xin Zhan Liu
- Saitozyma pseudoflava Q.M. Wang, F.Y. Bai & A.H. Li
- Sakaguchia melibiophila M. Groenew., Q.M. Wang & F.Y. Bai
- Slooffia globosa Q.M. Wang, F.Y. Bai & A.H. Li
- Solicoccozyma gelidoterrea Q.M. Wang, F.Y. Bai & A.H. Li
- Species diversity
- Sporobolomyces cellobiolyticus Q.M. Wang, F.Y. Bai & A.H. Li
- Sporobolomyces ellipsoideus Q.M. Wang, F.Y. Bai & A.H. Li
- Sporobolomyces primogenomicus Q.M. Wang & F.Y. Bai
- Sporobolomyces reniformis Q.M. Wang, F.Y. Bai & A.H. Li
- Sterigmatospora Q.M. Wang & F.Y. Bai
- Sterigmatospora layueensis Q.M. Wang, F.Y. Bai & A.H. Li
- Symmetrospora oryzicola (Nakase & M. Suzuki) Q.M. Wang & F.Y. Bai
- Symmetrospora rhododendri Q.M. Wang, F.Y. Bai & A.H. Li
- Taxonomy
- Teunia Q.M. Wang & F.Y. Bai
- Teunia betulae K. Sylvester, Q.M. Wang & Hittinger ex Q.M. Wang, F.Y. Bai & A.H. Li
- Teunia cuniculi (K.S. Shin & Y.H. Park) Q.M. Wang, F.Y. Bai & A.H. Li
- Teunia globosa Q.M. Wang, F.Y. Bai & A.H. Li
- Teunia helanensis Q.M. Wang, F.Y. Bai & A.H. Li
- Teunia korlaensis Q.M. Wang, F.Y. Bai & A.H. Li
- Teunia tronadorensis V. de Garcia, Zalar, Brizzio, Gunde-Cim. & van Brook ex Q.M. Wang, F.Y. Bai & A.H. Li
- Tremella basidiomaticola Xin Zhan Liu & F.Y. Bai
- Tremella shuangheensis Q.M. Wang, F.Y. Bai & A.H. Li
- Trimorphomyces sakaeraticus Fungsin, M. Takash. & Nakase ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Vanrija meifongana C.F. Lee ex Kachalkin Yurkov & Boekhout
- Vanrija nantouana C.F. Lee ex Kachalkin Yurkov & Boekhout
- Vanrija thermophila Vogelmann, S. Chaves & C. Hertel ex Kachalkin Yurkov & Boekhout
- Vishniacozyma europaea Q.M. Wang, F.Y. Bai & A.H. Li
- Vishniacozyma foliicola Q.M. Wang & F.Y. Bai ex Yurkov
- Vishniacozyma heimaeyensis Vishniac ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Vishniacozyma melezitolytica Q.M. Wang, F.Y. Bai & A.H. Li
- Vishniacozyma pseudopenaeus Q.M. Wang, F.Y. Bai & A.H. Li
- Vishniacozyma psychrotolerans V. de García, Zalar, Brizzio, Gunde-Cim. & Van Broock ex Yurkov
- Vishniacozyma taibaiensis Q.M. Wang & F.Y. Bai ex Yurkov
- Vishniacozyma tephrensis Vishniac ex Xin Zhan Liu, F.Y. Bai, M. Groenew. & Boekhout
- Yamadamyces Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout
- Yamadamyces rosulatus Golubev & Scorzetti ex Q.M. Wang, F.Y. Bai, M. Groenew. & Boekhout
- Yamadamyces terricola Q.M. Wang, F.Y. Bai & A.H. Li
- Yurkovia longicylindrica Q.M. Wang, F.Y. Bai & A.H. Li
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Affiliation(s)
- A-H Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,China General Microbiological Culture Collection Center and State Key Laboratory of Microbial Resources, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - F-X Yuan
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,North Minzu University, Yinchuan, Ningxia, 750030, China
| | - M Groenewald
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - K Bensch
- Westerdijk Fungal Biodiversity Institute, Uppsalalaan 8, Utrecht, 3584 CT, The Netherlands
| | - A M Yurkov
- Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, Braunschweig, 38124, Germany
| | - K Li
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - P-J Han
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - L-D Guo
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
| | - M C Aime
- Purdue University, Department of Botany and Plant Pathology, West Lafayette, IN, 47901, USA
| | - J P Sampaio
- UCIBIO-REQUIMTE, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal.,PYCC - Portuguese Yeast Culture Collection, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
| | - S Jindamorakot
- National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani, 12120, Thailand
| | - B Turchetti
- Department of Agriculture, Food and Environmental Sciences & Industrial Yeasts Collection DBVPG, University of Perugia, Perugia, 74 - I-06121, Italy
| | - J Inacio
- School of Pharmacy and Biomolecular Sciences, University of Brighton, Brighton, BN2 4GJ, UK
| | - B Fungsin
- TISTR Culture Collection, Thailand Institute of Scientific and Technological Research (TISTR), 35 M 3, Technopolis, Khlong Ha, Khlong Luang, Pathum Thani, 12120, Thailand
| | - Q-M Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China.,College of Life Sciences, Hebei University, Baoding, Hebei Province, 071002, China
| | - F-Y Bai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, 100101, China
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9
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Ma QY, Zhang SK, Liu J, Wang QM, Shen HP, Zhang YP, Liu M. [Anemia status of Chinese rural women of reproductive age in 2012]. Zhonghua Yi Xue Za Zhi 2018; 98:2115-2119. [PMID: 30032511 DOI: 10.3760/cma.j.issn.0376-2491.2018.26.011] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the hemoglobin concentration, anemia status and its determinant factors among Chinese rural women of reproductive age in 2012. Methods: This was a cross-sectional study. The data was obtained from the National Free Preconception Health Examination Project (NFPHEP). A total of 712 101 Chinese rural reproductive age women aged 21-49 years old who came from 193 counties of 30 provinces were included. The demographic characteristics were obtained from questionnaires. Hemoglobin concentration was measured using the cyanomethemoglobin method. The definition of anemia we used was recommended by World Health Organization, and was adjusted according to altitude level. The hemoglobin concentration level, the prevalence of anemia and its 95% CI was calculated. Determinant factors of anemia such as demographic characteristics and histories of pregnancy and miscarriage were analyzed using logistic regression. Results: In 2012, the level of hemoglobin concentration in Chinese rural women of reproductive age was (127.77±13.47) g/L, with the lowest in 21-24 years group, which was (127.54±13.54) g/L, and highest in 35-39 years group, which was (128.39±14.12) g/L. In terms of region, the hemoglobin concentration level was lowest in central south, which was (125.79±12.00) g/L, and highest in southwest, which was (129.91±14.37) g/L. The prevalence of anemia in Chinese rural women of reproductive age was 24.80%, with the highest seen in 21-24 years, which was 25.92% (95% CI: 25.74%-26.11%), and lowest in 30-34 years, which was 23.61% (95% CI: 23.37%-23.85%). The prevalence in northwest (28.31%, 95% CI: 28.01%-28.61%) was the highest among all regions, and the prevalence in east (20.88%, 95% CI: 20.68%-21.09%) was the lowest. Conclusions: The prevalence of anemia in Chinese rural reproductive age women was 24.80% in 2012. The anemia prevalence was higher among women who were young, had low educational level, and lived in northwest region.
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Affiliation(s)
- Q Y Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
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10
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Wang QM, Zhao XY, Wang Z, Yang XB. Expression of nitric oxide synthase in the retina of monocular deprivation amblyopia rats. Eur Rev Med Pharmacol Sci 2018; 22:1879-1883. [PMID: 29687838 DOI: 10.26355/eurrev_201804_14708] [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: 11/12/2022]
Abstract
OBJECTIVE Amblyopia or lazy eye is a common visual problem affecting children that cannot correct with lenses. Nitric oxide synthase (NOS) is a critical enzyme that regulates the activity of nitric oxide (NO), a key signaling molecule with multiple roles in many tissues. Among its many activities, NOS has been proposed to be required for normal eye development and altered NOS expression can lead to perturbations in eye development and vision. MATERIALS AND METHODS To examine the potential role of neuronal NOS (nNOS) in vision loss, we generated a model of monocular deprivation amblyopia in rats. After suturing one eye, we examined several parameters of neural activity and nNOS expression in the retina 7, 14 and 28 days later. RESULTS We found the rapid and progressive loss of neural activity in the retina of sutured eyes compared to non-treated and control eyes. The sutured eyes also showed decreased expression of nNOS at the protein and mRNA levels, indicating a strong correlation between nNOS expression and retina activity. CONCLUSIONS These data suggest a potential role for nNOS activity in vision loss, opening potential avenues for therapeutic intervention.
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Affiliation(s)
- Q-M Wang
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan City, Hubei Province, China.
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11
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Zeng QL, Wang QM, Li N, Luo QZ. [Advances in the research of application of urine output monitoring in prevention and treatment of burn shock]. Zhonghua Shao Shang Za Zhi 2018; 34:29-31. [PMID: 29374924 DOI: 10.3760/cma.j.issn.1009-2587.2018.01.006] [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
Fluid therapy is a crucial treatment for patients with extensive burn, which affects patients'prognosis directly. Accurate urine output measurement plays an irreplaceable role in guiding fluid resuscitation in clinic. As one of the best indexes in traditional burn resuscitation, urine output comprehensively reflects systemic circulation. However, it doesn't fully reflect all the specific chapters of microcirculation and systemic circulation and deficient cellular oxygen metabolism exactly. We need to use urine output combined with other shock parameters to ensure adequate fluid replacement. Currently, the most common way of urine output monitoring is manual measurement. The article reviews the application of urine output monitoring in guiding fluid resuscitation of burn shock.
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Affiliation(s)
- Q L Zeng
- Department of Nursing, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
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12
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Wang QM, Liu SL, Chen EF. [Advances on epidemiological research of human infections with novel avian influenza A (H7N9) virus]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 51:183-187. [PMID: 28219161 DOI: 10.3760/cma.j.issn.0253-9624.2017.02.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Human infections with novel avian influenza A(H7N9)virus was an emerging infectious disease discovered in March, 2013. As of June30, 2016, 770 cases of H7N9 were reported in worldwide including 315 deaths with 40.9% of high case fatality rate. Yangtze River Delta and Pearl River Delta were the high-prevalence area. Formerly, the cases of H7N9 were concentrated on the municipalities. However, most of the case-patients were from smaller cities or rural areas nowadays. The H7N9 human infections mainly occurred in winter and spring every waves as similar as seasonal and H5N1 human infections. Middle aged and old (the median age was 61 years) male patients were occupied the large proportion among the cases of H7N9. In addition, the phenomenon of the limited and unsustained human-to-human transmission were existed. At present, the 4 major epidemic waves had happened and human infections with novel avian influenza A (H7N9) virus could be outbreak regularly in China. In this paper, the pathogenic characteristics and disease distribution of H7N9 influenza A viruses were elaborated, with both transmission factors and control measures, which were helpful to provide the scientific evidence for prevention and control in H7N9avian influenza epidemic.
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Affiliation(s)
- Q M Wang
- Medical School of Ningbo University, Ningbo 315020, China
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13
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Yang LQ, Sun XC, Qin SK, Cheng Y, Shi JH, Chen ZD, Wang QM, Zhang HL, Hu B, Liu B, Zhang QY, Wu Q, Wang D, Shu YQ, Dong J, Han BH, Wang KM, Dang CX, Li JL, Wang HB, Li BL, Lu JG, Zhang ZH, Chen YX. Efficacy and safety of fosaprepitant in the prevention of nausea and vomiting following highly emetogenic chemotherapy in Chinese people: A randomized, double-blind, phase III study. Eur J Cancer Care (Engl) 2017; 26. [PMID: 28393417 PMCID: PMC5697660 DOI: 10.1111/ecc.12668] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2017] [Indexed: 11/30/2022]
Abstract
The prevention of chemotherapy‐induced nausea and vomiting was one of the most challenging supportive care issues in oncology, especially to highly emetogenic chemotherapy (HEC). A total of 645 patients were randomized into fosaprepitant group (fosaprepitant/placebo 150 mg d1 in combination with granisetron and dexamethasone) or aprepitant group (aprepitant/placebo 125 mg d1; 80 mg d2‐d3 plus granisetron and dexamethasone).The primary endpoint was the percentage of patients who had a complete response (CR) over the entire treatment course (0–120 hr, overall phase [OP]). It was assessed by using a non‐inferiority model, with a non‐inferiority margin of 10%. The difference of the CR rate was compared between two groups with chi‐square analysis. Six hundred and twenty‐six patients were included in the per protocol analysis. The percentage of patients with a CR in the fosaprepitant group was not inferior to that in the aprepitant group (90.85% versus 94.17%, p = .1302) during OP. Whether the cisplatin‐based chemotherapy or not, the CR rate of the fosaprepitant group was not inferior to that of the aprepitant group. Both regimens were well tolerated. The most common adverse event was constipation. Fosaprepitant provided effective and well‐tolerated control of nausea and vomiting associated with HEC in Chinese patients.
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Affiliation(s)
- L Q Yang
- Nanjing Medical University, Nanjing, China.,The Affiliated Bayi Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - X C Sun
- Nanjing Medical University, Nanjing, China.,The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - S K Qin
- The Affiliated Bayi Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Y Cheng
- Jilin Cancer Hospital, Changchun, China
| | - J H Shi
- Linyi Cancer Hospital, Linyi, China
| | - Z D Chen
- The Second Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Q M Wang
- Henan Cancer Hospital, Zhengzhou, China
| | | | - B Hu
- Anhui Provincial Hospital, Hefei, China
| | - B Liu
- Shandong Cancer Hospital, Qingdao, China
| | - Q Y Zhang
- Harbin Medical University Cancer Hospital, Harbin, China
| | - Q Wu
- The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - D Wang
- The Third Affiliated Hospital of Third Military Medical University, Chongqing, China
| | - Y Q Shu
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - J Dong
- Yunnan Provincial Cancer Hospital, Kunming, China
| | - B H Han
- Shanghai Chest Hospital, Shanghai, China
| | - K M Wang
- The Second Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - C X Dang
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J L Li
- Cancer Hospital Chinese Academy of Medical Sciences, Beijing, China
| | - H B Wang
- The Affiliated Hospital of Xuzhou Medical College, Xuzhou, China
| | - B L Li
- Beijing Chest Hospital of the Capital Medical College, Beijing, China
| | - J G Lu
- Nantong Tumor Hospital, Nantong, China
| | - Z H Zhang
- Sichuan Province Cancer Hospital, Chengdu, China
| | - Y X Chen
- The Affiliated Bayi Hospital of Nanjing University of Chinese Medicine, Nanjing, China
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14
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Chen J, Zhang SK, Wang QM, Shen HP, Zhang YP, Yan DH, Liu J, Liu M. [Investigation on folic acid supplementation status among Chinese women in the first trimester of pregnancy]. Zhonghua Yi Xue Za Zhi 2016; 96:1215-9. [PMID: 27117372 DOI: 10.3760/cma.j.issn.0376-2491.2016.15.016] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate folic acid (FA) supplementation status among Chinese rural reproductive women in their early pregnancy, and to provide evidence for the evaluation of FA supplementation project from national basic public health services. METHODS The data on intake status of FA supplementation from "National Free Preconception Health Examination Project (NFPHEP)" database between January 1, 2010 and December 31, 2012 was used and analyzed.A total of 902 270 women who achieved follow-up during early pregnancy from 220 pilot counties of 31 provinces were recruited. RESULTS From 2010 to 2012, the rate of FA intake among women recuited were 73.58% (134 131/182 289), 75.88% (329 288/433 970) and 76.53% (218 896/286 011), respectively, which increased year by year (χtrend(2)=13 371.8, P<0.001). Among 682 315 women who took FA, 350 738(51.40%) women began to take FA 3 months before amenorrhea; 130 683 (19.15%) women began to take FA 1-2 months before amenorrhea, and 200 894 (29.44%) began to take FA after amenorrhea.Among 682 315 women who took FA, 645 310 (94.58%) women took it regularly, and 342 418 (50.18%) women took FA in a standardized way. CONCLUSIONS The status of FA intake among Chinese rural women in the first trimester of pregnancy was good, and 75.62% (682 315/902 270) of them took FA.It is also important for basic public health services to improve the rate of FA intake and increase the rate of taking FA in a standardized way in Chinese rural pregnant women.
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Affiliation(s)
- J Chen
- Peking University Health Science Center, Beijing 100083, China
| | - S K Zhang
- Department of Maternal and Child Health, National Health and Family Planning Commission, Beijing 100044, China
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15
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Li ZD, Bao FJ, Wang QM, Huang JH. [Finite element analysis of astigmatic keratotomy based on corneal biomechanical properties]. Zhonghua Yan Ke Za Zhi 2016; 52:674-80. [PMID: 27647248 DOI: 10.3760/cma.j.issn.0412-4081.2016.09.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To establish a finite-element biomechanical model of astigmatic keratotomy, and to investigate the impact of surgical parameters on corneal deformation, stress distribution and astigmatism correction. METHODS With Rhinoceros modeling and Abaqus finite element analysis software, a three-dimensional finite-element model of astigmatic cornea was developed, and surgical parameters such as incision optical zone, incision depth and length were varied. Postoperative corneal stress, apical deformation and astigmatism correction were assessed. RESULTS A significant increase of stress was noticed near corneal incisions, and maximum corneal stress decreased with the increase of incision depth. Both anterior and posterior corneal surface moved slightly forward postoperatively. Maximum corneal stress was 340 392, 361 022 and 214 187 Pa, and anterior and posterior apical deformation was 49.80, 51.64, 55.53 μm and 54.15, 55.91, 59.67 μm, with 45°, 60° and 90° in arc length of the incision, respectively. The refractive power decreased in steep meridian and increased in flat meridian, resulting in a total decrease of corneal astigmatism. The magnitude of astigmatism correction was 0.85, 1.59, 2.23 and 3.06 D with 30°, 45°, 60° and 90° in arc length of the incision, respectively. CONCLUSIONS The finite-element biomechanical model of astigmatic keratotomy could be used to predict the optical outcomes after surgery. The magnitude of astigmatism correction is positively correlated with the surgical incision arc length. (Chin J Ophthalmol, 2016, 52: 674-680).
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Affiliation(s)
- Z D Li
- Affiliation School of Ophthalmology and Optometry and Eye Hospital, Wenzhou Medical University, Wenzhou 325027, China
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16
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Chen SH, Zhang J, Li YN, Ding P, Wang QM. [Clinical results of transepithelial corneal collagen cross-linking in the treatment of keratoconus]. Zhonghua Yan Ke Za Zhi 2016; 52:525-5. [PMID: 27531114 DOI: 10.3760/cma.j.issn.0412-4081.2016.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the effect of transepithelial corneal collagen cross-linking (CXL) in the treatment of keratoconus. METHODS Prospective study. Sixteen eyes of 16 patients with keratoconus underwent transepithelial CXL, and the fellow eyes were considered as the controls. The mean age was (22.4±6.5) years old. In the CXL group, topical anesthesia (0.1% tetracaine) was given for 15 minutes, and 0.5% riboflavin was applied until saturated in the anterior chamber. Then an ultraviolet A irradiance of 3 mW/cm(2) on the cornea was performed for 30 minutes. Postoperative corneal reepithelization time was recorded. Preoperative and postoperative examinations included uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), refractive error, topography, corneal biomechanical parameters, thinnest corneal thickness, and endothelial cell density. RESULTS The mean corneal reepithelization time was 1.0(1.0 to 2.0) days. In the transepithelial CXL group, at the end of the 12-month follow-up, CDVA and refractive outcomes were significantly improved (P<0.05). Maximum K-value, anterior and posterior elevations were significantly decreased by (-2.23 ± 2.82)D (t=-3.153, P=0.007), (-4.69 ± 4.99) μm (t=-3.758, P=0.002), and (-13.94 ± 25.81) μm (t=-2.160, P=0.047), respectively. Corneal hysteresis, corneal resistance factor, thinnest corneal thickness, and endothelial cell density showed no significant difference (P>0.05). The differences in the changes of UDVA, CDVA, spherical equivalent refraction, and maximum K-value between the CXL and control groups were significant at 12 months (P<0.05). CONCLUSION Transepithelial CXL is effective in optimizing the irregular corneal surface of keratoconus, and might halt its progression. (Chin J Ophthalmol, 2016, 52: 525-530).
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Affiliation(s)
- S H Chen
- The Affiliated Eye Hospital of Wenzhou Medical University, Wenzhou 325027, China
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17
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Wang QM, Johnson RB, Cohen JD, Voy GT, Richardson JM, Jungheim LN. Development of a Continuous Fluorescence Assay for Rhinovirus 14 3C Protease Using Synthetic Peptides. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/095632029700800402] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Rhinovirus 3C protease is an attractive target for therapeutic intervention owing to its important role in virion maturation and infectivity. In order to facilitate the identification of potential 3C protease inhibitors, we have developed a continuous fluorescence assay using 5-[(2-aminoethyl)amino]naphthalene-1-sulphonic acid (Edans) as a fluorescent donor and 4-(4-dimethylaminophenylazo)benzoic acid (Dabcyl) as a quenching acceptor. Several fluorogenic peptide substrates for 3C protease were synthesized by both solution chemistry and solid phase peptide synthesis. One of the synthetic Edans/Dabcyl substrates, with an amino acid sequence derived from the 2C/3A site of the virus polyprotein, yielded a 24-fold increase in fluorescence intensity after 3C cleavage. Data regarding substrate cleavage kinetics, assay sensitivity and optimization are presented. The application of this assay to the evaluation of 3C protease inhibitors is also shown.
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Affiliation(s)
- QM Wang
- Infectious Diseases Research, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285, USA
| | - RB Johnson
- Infectious Diseases Research, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285, USA
| | - JD Cohen
- Infectious Diseases Research, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285, USA
| | - GT Voy
- Infectious Diseases Research, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285, USA
| | - JM Richardson
- Infectious Diseases Research, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285, USA
| | - LN Jungheim
- Infectious Diseases Research, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285, USA
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18
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Song Q, Ma YL, Song JQ, Chen Q, Xia GS, Ma JY, Feng F, Fei XJ, Wang QM. Sevoflurane induces neurotoxicity in young mice through FAS/FASL signaling. Genet Mol Res 2015; 14:18059-68. [PMID: 26782453 DOI: 10.4238/2015.december.22.32] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Sevoflurane, the most widely used anesthetic in clinical practice, has been shown to induce apoptosis, inhibit neurogenesis, and cause learning and memory impairment in young mice. However, the underlying mechanism is still unknown. In this study, wild-type and the FAS- or FAS ligand (FASL)-knockout mice (age 7 days) were exposed to sevoflurane or pure oxygen. Western blotting was used to examine the expression of FAS protein. Terminal deoxynucleotidyl transferase dUTP nick-end labeling (TUNEL) and bromodeoxyuridine (BrdU) staining were employed to quantify the apoptotic cells and newborn cells in the hippocampus and Morris water maze (MWM) in order to evaluate learning and memory status. Sevoflurane significantly increased the expression of FAS protein in wild-type mice. Compared to FAS- and FASL-knockout mice treated with sevoflurane, sevoflurane-treated wild-type mice exhibited more TUNEL-positive hippocampal cells and less BrdU-positive hippocampal cells. The MWM showed that compared with FAS- and FASL-knockout mice treated with sevoflurane, sevoflurane treatment of wild-type mice significantly prolonged the escape latency and reduced platform crossing times. These data suggest that sevoflurane induces neurotoxicity in young mice through FAS-FASL signaling.
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Affiliation(s)
- Q Song
- Department of Anesthesiology, Zhengzhou Central Hospital, Zhengzhou, Henan Province, China
| | - Y L Ma
- Department of Anesthesiology, Zhengzhou Central Hospital, Zhengzhou, Henan Province, China
| | - J Q Song
- Department of Anesthesiology, Zhengzhou Central Hospital, Zhengzhou, Henan Province, China
| | - Q Chen
- Department of Anesthesiology, Zhengzhou Central Hospital, Zhengzhou, Henan Province, China
| | - G S Xia
- Department of Anesthesiology, Zhengzhou Central Hospital, Zhengzhou, Henan Province, China
| | - J Y Ma
- Department of Anesthesiology, Zhengzhou Central Hospital, Zhengzhou, Henan Province, China
| | - F Feng
- Department of Anesthesiology, Zhengzhou Central Hospital, Zhengzhou, Henan Province, China
| | - X J Fei
- Department of Anesthesia and Critical Care, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.,Department of Hospital Infections, Shuguang Hospital Affiliated with Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Q M Wang
- Department of Anesthesiology, Zhengzhou Central Hospital, Zhengzhou, Henan Province, China
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Wang QM, Groenewald M, Takashima M, Theelen B, Han PJ, Liu XZ, Boekhout T, Bai FY. Phylogeny of yeasts and related filamentous fungi within Pucciniomycotina determined from multigene sequence analyses. Stud Mycol 2015; 81:27-53. [PMID: 26955197 PMCID: PMC4777782 DOI: 10.1016/j.simyco.2015.08.002] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
In addition to rusts, the subphylum Pucciniomycotina (Basidiomycota) includes a large number of unicellular or dimorphic fungi which are usually studied as yeasts. Ribosomal DNA sequence analyses have shown that the current taxonomic system of the pucciniomycetous yeasts which is based on phenotypic criteria is not concordant with the molecular phylogeny and many genera are polyphyletic. Here we inferred the molecular phylogeny of 184 pucciniomycetous yeast species and related filamentous fungi using maximum likelihood, maximum parsimony and Bayesian inference analyses based on the sequences of seven genes, including the small subunit ribosomal DNA (rDNA), the large subunit rDNA D1/D2 domains, the internal transcribed spacer regions (ITS 1 and 2) of rDNA including the 5.8S rDNA gene; the nuclear protein-coding genes of the two subunits of DNA polymerase II (RPB1 and RPB2) and the translation elongation factor 1-α (TEF1); and the mitochondrial gene cytochrome b (CYTB). A total of 33 monophyletic clades and 18 single species lineages were recognised among the pucciniomycetous yeasts employed, which belonged to four major lineages corresponding to Agaricostilbomycetes, Cystobasidiomycetes, Microbotryomycetes and Mixiomycetes. These lineages remained independent from the classes Atractiellomycetes, Classiculomycetes, Pucciniomycetes and Tritirachiomycetes formed by filamentous taxa in Pucciniomycotina. An updated taxonomic system of pucciniomycetous yeasts implementing the 'One fungus = One name' principle will be proposed based on the phylogenetic framework presented here.
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Affiliation(s)
- Q-M Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - M Groenewald
- CBS Fungal Biodiversity Center (CBS-KNAW), Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - M Takashima
- Japan Collection of Microorganisms, RIKEN BioResource Center, Koyadai, Tsukuba, Ibaraki 305-0074, Japan
| | - B Theelen
- CBS Fungal Biodiversity Center (CBS-KNAW), Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
| | - P-J Han
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - X-Z Liu
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - T Boekhout
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; CBS Fungal Biodiversity Center (CBS-KNAW), Uppsalalaan 8, 3584 CT Utrecht, The Netherlands; Shanghai Key Laboratory of Molecular Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - F-Y Bai
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China; CBS Fungal Biodiversity Center (CBS-KNAW), Uppsalalaan 8, 3584 CT Utrecht, The Netherlands
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20
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Liu XZ, Wang QM, Theelen B, Groenewald M, Bai FY, Boekhout T. Phylogeny of tremellomycetous yeasts and related dimorphic and filamentous basidiomycetes reconstructed from multiple gene sequence analyses. Stud Mycol 2015; 81:1-26. [PMID: 26955196 PMCID: PMC4777771 DOI: 10.1016/j.simyco.2015.08.001] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [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] [Indexed: 12/01/2022] Open
Abstract
The Tremellomycetes (Basidiomycota) contains a large number of unicellular and dimorphic fungi with stable free-living unicellular states in their life cycles. These fungi have been conventionally classified as basidiomycetous yeasts based on physiological and biochemical characteristics. Many currently recognised genera of these yeasts are mainly defined based on phenotypical characters and are highly polyphyletic. Here we reconstructed the phylogeny of the majority of described anamorphic and teleomorphic tremellomycetous yeasts using Bayesian inference, maximum likelihood, and neighbour-joining analyses based on the sequences of seven genes, including three rRNA genes, namely the small subunit of the ribosomal DNA (rDNA), D1/D2 domains of the large subunit rDNA, and the internal transcribed spacer regions (ITS 1 and 2) of rDNA including 5.8S rDNA; and four protein-coding genes, namely the two subunits of the RNA polymerase II (RPB1 and RPB2), the translation elongation factor 1-α (TEF1) and the mitochondrial gene cytochrome b (CYTB). With the consideration of morphological, physiological and chemotaxonomic characters and the congruence of phylogenies inferred from analyses using different algorithms based on different data sets consisting of the combined seven genes, the three rRNA genes, and the individual protein-coding genes, five major lineages corresponding to the orders Cystofilobasidiales, Filobasidiales, Holtermanniales, Tremellales, and Trichosporonales were resolved. A total of 45 strongly supported monophyletic clades with multiple species and 23 single species clades were recognised. This phylogenetic framework will be the basis for the proposal of an updated taxonomic system of tremellomycetous yeasts that will be compatible with the current taxonomic system of filamentous basidiomycetes accommodating the ‘one fungus, one name’ principle.
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Affiliation(s)
- X-Z Liu
- State Key Laboratory for Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - Q-M Wang
- State Key Laboratory for Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China
| | - B Theelen
- CBS Fungal Biodiversity Centre (CBS-KNAW), Uppsalalaan 8, Utrecht, The Netherlands
| | - M Groenewald
- CBS Fungal Biodiversity Centre (CBS-KNAW), Uppsalalaan 8, Utrecht, The Netherlands
| | - F-Y Bai
- State Key Laboratory for Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China; CBS Fungal Biodiversity Centre (CBS-KNAW), Uppsalalaan 8, Utrecht, The Netherlands
| | - T Boekhout
- State Key Laboratory for Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, PR China; CBS Fungal Biodiversity Centre (CBS-KNAW), Uppsalalaan 8, Utrecht, The Netherlands; Shanghai Key Laboratory of Molecular Medical Mycology, Changzheng Hospital, Second Military Medical University, Shanghai, PR China
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21
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Zhu SQ, Wang QM, Xue AQ, Zheng LY, Su YF, Yu AY. Posterior sclera reinforcement and phakic intraocular lens implantation for highly myopic amblyopia in children: a 3-year follow-up. Eye (Lond) 2014; 28:1310-4. [PMID: 25125071 DOI: 10.1038/eye.2014.200] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Accepted: 07/10/2014] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To study the safety and efficacy of posterior scleral reinforcement (PSR) combined with phakic intraocular lens (PIOLs) implantation for highly myopic amblyopia in children. METHODS This study included eight highly myopic children (11 eyes) who failed in conventional therapy for amblyopia using various combination of spectacles, contact lenses, and intensive patching before enrollment into this study. They were treated sequentially with PSR and PIOL implantation, and were followed up for 3 years after surgery. Uncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA) in LogMAR, spherical equivalent power (SE), and complications were evaluated. RESULTS Before surgery, the mean UCVA was 1.59±0.33, BCVA, 0.74±0.37, SE, -17.57±5.56D, the axial length (AL), 30.09±2.18 mm. After PSR, BCVA improved one line in three patients, the rest were unchanged, and AL was unchanged among all cases. Six eyes of three patients were implanted with an iris-claw PIOL and five eyes of five patients were implanted with a posterior PIOL. After completion of treatment, the mean UCVA was 0.44±0.21, BCVA 0.38±0.24, SE -0.54±0.74 D, and AL 30.35±2.29 mm. No patient experienced complications. CONCLUSION Combined PSR and PIOL implantation treatment for highly myopic amblyopia in children is safe and effective.
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Affiliation(s)
- S-Q Zhu
- The Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - Q-M Wang
- The Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - A-Q Xue
- The Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - L-Y Zheng
- The Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - Y-F Su
- The Eye Hospital of Wenzhou Medical University, Wenzhou, China
| | - A-Y Yu
- The Eye Hospital of Wenzhou Medical University, Wenzhou, China
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22
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Du JY, Yang H, Tian DR, Wang QM, He L. Identification and functional analysis of differentially expressed genes related to obesity using DNA microarray. Genet Mol Res 2014; 13:64-72. [PMID: 24446288 DOI: 10.4238/2014.january.8.5] [Citation(s) in RCA: 5] [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] [Indexed: 11/03/2022]
Abstract
We looked for differentially expressed genes at different stages of preadipocyte differentiation and examined their functions, based on DNA microarrays of preadipocytes obtained from healthy subjects undergoing cosmetic liposuction. We downloaded gene expression profile GSE25910 from the Gene Expression Omnibus database and identified the differentially expressed genes with packages in R language. The selected differentially expressed genes were further analyzed using bioinformatics methods. Comparing gene expression at different stages of preadipocytes differentiation, we found that expression of 668 and 1007 genes were altered in middle and late stages compared with the early stage, respectively. Function analysis revealed that the differentially expressed genes were mainly related to fatty acid metabolic processes in the former two stages.
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Affiliation(s)
- J Y Du
- Department of Anatomy, Tianjin Medical University, Tianjin, China
| | - H Yang
- Department of Anatomy, Tianjin Medical University, Tianjin, China
| | - D R Tian
- Department of Anatomy, Tianjin Medical University, Tianjin, China
| | - Q M Wang
- Department of Anatomy, Tianjin Medical University, Tianjin, China
| | - L He
- Department of Anatomy, Tianjin Medical University, Tianjin, China
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Wang QM, Tang Y, Lei CX, Shi FZ, Liu QH. Enhanced cellular immune response elicited by a DNA vaccine fused with Ub against Mycobacterium tuberculosis. Scand J Immunol 2012; 76:123-30. [PMID: 22540309 DOI: 10.1111/j.1365-3083.2012.02719.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This study evaluated the immune response elicited by a Ub-fused Ag85A DNA vaccine against Mycobacterium tuberculosis. BALB/c mice were vaccinated with plasmid DNA encoding Ag85A protein, Ub-fused Ag85A DNA vaccine (UbGR-Ag85A) and negative DNA vaccines, respectively. Ag85A DNA vaccine immunization induced a Th(l)-polarized immune response. The production of Th(l)-type cytokine (IFN-γ) and proliferative T cell responses was enhanced significantly in mice immunized with UbGR-Ag85A fusion DNA vaccine, compared with non-fusion DNA vaccine. Moreover, this fusion DNA vaccine also resulted in an increased relative ratio of IgG(2a) to IgG(l) and the cytotoxicity of T cells. IFN-γ intracellular staining of splenocytes indicated that UbGR-Ag85A fusion DNA vaccine activated CD4(+) and CD8(+) T cells, particularly CD8(+) T cells. Thus, this study demonstrated that the UbGR-Ag85A fusion DNA vaccine inoculation could improve antigen-specific cellular immune responses, which is helpful for protection against TB infection.
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Affiliation(s)
- Q-M Wang
- The Division of aviation medicine, Institute of Naval Medical Research, Shanghai, China. wqqmm_888@ yahoo.com
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24
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Wang QM, Garkas W, Renteria AF, Leyens C, Kim KH. Oxidation behaviour of Ti2AIN films composed mainly of nanolaminated MAX phase. J Nanosci Nanotechnol 2011; 11:8959-8966. [PMID: 22400287 DOI: 10.1166/jnn.2011.3504] [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: 05/31/2023]
Abstract
In this paper, we reported the oxidation behaviour of Ti2AIN films on polycrystalline Al2O3 substrates. The Ti2AIN films composed mainly of nanolaminated MAX phase was obtained by first depositing Ti-Al-N films using reactive sputtering of two elemental Ti and Al targets in Ar/N2 atmosphere and subsequent vacuum annealing at 800 degrees C for 1 h. The Ti2AIN films exhibited excellent oxidation resistance and thermal stability at 600-900 degrees C in air. Very low mass gain was observed. At low temperature (600 degrees C), no oxide crystals were observed on film surface. Blade-like Theta-Al2O3 fine crystals formed on film surfaces at 700-800 degrees C. At high temperature (900 degrees C), firstly Theta-Al2O3 formed on film surface and then transformed into alpha-Al2O3. At 700-900 degrees C, a continuous Al2O3 layer formed on Ti2AIN films surface, acting as diffusion barrier preventing further oxidation attack. The mechanism of the excellent oxidation resistance of Ti2AIN films was discussed based on the experimental results.
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Affiliation(s)
- Q M Wang
- Chair of Physical Metallurgy and Materials Technology, Technical University of Brandenburg at Cottbus, Konrad-Wachsmann-Allee 17, 03046 Cottbus, Germany
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Zang YL, Yang S, Wang QM, Zhang ZW, Ye QB, Zeng YJ. Stress analysis of a plate-rod system for scoliosis correction. J Med Eng Technol 2010; 34:437-42. [PMID: 20873981 DOI: 10.3109/03091902.2010.497889] [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: 01/11/2023]
Abstract
To study the stress-strain relationships of intervertebral discs and vertebrae when using a plate-rod system for scoliosis, a mechanical model of scoliosis was built based on the similarity principle. The stress variation on the spine, which was under the coactions of lengthwise load and correcting load, was measured by photoelastic and strain gauge methods. The model test results indicate that the added value of compressive stress on the concave side of the spine (0-1.5 MPa) is larger than the added values of compressive stresses on the spine's convex side and concave ligament (0-200 N). This demonstrates that the lengthwise load (weight) can increase the seriousness of scoliosis. In addition, it was shown that tensile stress is formed on the concave side of the scoliosis model when the compressive stress decreases (1.5-0 MPa), due to the effect of the correcting load. It can be seen that plate-rod systems can correct scoliosis effectively.
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Affiliation(s)
- Y-L Zang
- Beijing University of Technology, Beijing 100124, PR China
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Wang QM, Sun SH, Hu ZL, Zhou FJ, Yin M, Xiao CJ, Zhang JC. Epitope DNA vaccines against tuberculosis: spacers and ubiquitin modulates cellular immune responses elicited by epitope DNA vaccine. Scand J Immunol 2004; 60:219-25. [PMID: 15320877 DOI: 10.1111/j.0300-9475.2004.01442.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [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: 11/27/2022]
Abstract
Cell-mediated immune responses are crucial in the protection against tuberculosis. In this study, we constructed epitope DNA vaccines (p3-M-38) encoding cytotoxic T lymphocyte (CTL) epitopes of MPT64 and 38 kDa proteins of Mycobacterium tuberculosis. In order to observe the influence of spacer sequence (Ala-Ala-Tyr) or ubiquitin (UbGR) on the efficacy of the two CTL epitopes, we also constructed DNA vaccines, p3-M-S(spacer)-38, p3-Ub (UbGR)-M-S-38 and p3-Ub-M-38. The immune responses elicited by the four DNA vaccines were tested in C57BL/6 (H-2b) mice. The cytotoxicity of T cells was detected by LDH-release method and by enzyme-linked immunospot assay for epitope-specific cells secreting interferon-gamma. The results showed that DNA immunization with p3-M-38 vaccine could induce epitope-specific CD8+ CTL response and that the spacer sequence (AAY) only enhanced M epitope presentation. The protein-targeting sequence (UbGR) enhanced the immunogenicity of the two epitopes. The finding that defined spacer sequences at C-terminus and protein-targeting degradation modulated the immune response of epitope string DNA vaccines will be of importance for the further development of multi-epitope DNA vaccines against tuberculosis.
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Affiliation(s)
- Q-M Wang
- Department of Medical Genetics, The Second Military Medical University, Shanghai, China
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27
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Liu YG, Wang QM, Xu YQ, Ni QZ, Ni YC. [Effect of daphnetin on the exo-erythrocytic stage of rodent malaria]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 19:30-2. [PMID: 12572020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To investigate the activity of daphnetin(DPNT) against the exo-erythrocytic stage of rodent malaria. METHODS Groups of ten male ICR mice were infected by intraperitoneal injection with sporozoites of P. yoelii. Mice were administered daphnetin 0.5 hr postinfection on d0 and once per day for three additional consecutive days(d1-d3) by the i.g. route. The effects of daphnetin at various dosages and those of the combination of daphnetin with primaquine were assessed by the number of mice with negative Giemsa-stained slides from tail blood on the seventh day after infection and by the average number of red blood cells (RBC) infected in 1,000 RBC observed on the eleventh or twelfth day after infection. We also observed the effect of daphnetin on the concentration of Hb in ICR mice. RESULTS Daphnetin exhibited no detectable antimalarial effect on the exo-erythrocytic stage of P. yoelii, while the antimalarial efficacy of DPNT 50 mg/(kg.d) combined with 5 mg/(kg.d) PQ, was comparable to PQ 10 mg/(kg.d) x 4 d i.g. in mice infected with sporozoites of P. yoelii. The concentration of Hb in ICR mice administered with DPNT 50 mg/(kg.d) x 4 d decreased on the eighth day after administration. CONCLUSION Daphnetin alone showed no anti-exoerythrocytic activity in vivo. The combination of DPNT 50 mg/(kg.d) with PQ 5 mg/(kg.d) showed promising antimalarial efficacy comparable to that of PQ 10 mg/(kg.d). Administration of DPNT caused anemia in ICR mice.
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Affiliation(s)
- Y G Liu
- Institute of Parasitic Diseases, Chinese Academy of Preventive Medicine, Shanghai 200025
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28
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Sun SH, Guo YJ, Wang QM, Chen RW. [Immunostimulatory activity elicited by CpG sequences in Cysticercus cellulosae paramyosin cDNA]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 19:298-9. [PMID: 12572047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To analyse the immunostimulatory activity of CpG sequences in cysticercus cellulosae paramyosin (also named Antigen B, AgB) cDNA. METHODS C57BL/6 mice were immunized with pcDNA3-AgB plasmid, pcDNA3-AgB' (CpG sequences were mutated), pcDNA3 or AgB protein and two weeks later, immune response was assayed by ELISA. RESULTS IgG and IgG2a were detectable at week 2 after immunization and continually increased until week 4. The antibody levels elicited by pcDNA3-AgB were significantly higher(P < 0.05) than those elicited by others. CONCLUSION After pcDNA3-AgB plasmid inoculation, the immune response of mouse was elicited not only by the AgB protein but also by the CpG immunostimulatory sequences in the AgB cDNA.
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Affiliation(s)
- S H Sun
- Department of Medical Genetic, Second Military Medical University, Shanghai 200433
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29
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Wang QM, Ni YC, Xu YQ, Ha SH, Cai Y. The schizontocidal activity of daphnetin against malaria parasites in vitro and in vivo. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 18:204-6. [PMID: 12567659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To investigate the in vitro and in vivo schizontocidal activity of daphnetin. METHODS Schizontocidal activity of daphnetin was tested using an in vitro assay based on the routine in vitro cultivation of P. falciparum FCC1 strain. The in vivo antimalarial effects of daphnetin at various dosages were assessed in mice infected with P. b. erghei ANKA according to "4-day suppress assay". RESULTS In vitro, daphnetin exhibited potent schizontocidal activity comparable to chloroquine(CQ) at the dose range of 1-10 mumol/L. In vivo, 50 or 100 mg/kg.d-1 x 4 d daphnetin i.g. and 10, 50 or 100 mg/kg.d-1 x 4 d dephnetin i.p. showed antimalarial efficacy comparable to CQ 10 mg/kg.d-1 x 4 d i.g. in mice infected with P. berghei ANKA, evaluated by both the reduction rate of parasitemia on D4 and the average surviving days in 30 days. CONCLUSION Daphnetin displays certain schizontocidal activity both in vitro and in vivo.
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Affiliation(s)
- Q M Wang
- Institute of Parasitic Diseases, Chinese Academy of Preventive Medicine, Shanghai 200025
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30
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Wang QM, Dai JX, Zhang PW, Sun SH. [Cloning of Cysticercus cellulosae AgB cDNA coding region]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2003; 18:73-5. [PMID: 12567718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To amplify and clone Cysticercus cellulosae AgB cDNA coding region. METHODS The AgB cDNA was amplified by RT-PCR technique from the total RNA of Cysticercus cellulosae. It was cloned into the vector pUC118 and sequenced. RESULTS The PCR amplified product was a single band of 2.6 kb in size. The sequences of AgB cDNA coding region has 99.8% homology with that of Australian Cysticercus cellulosae, and their amino acid sequences have 99.3% homology. CONCLUSION Cysticercus cellulosae AgB cDNA coding region has been cloned successfully.
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Affiliation(s)
- Q M Wang
- Department of Medical Genetic, Second Military Medical University, Shanghai 200433
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31
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Abstract
The hepatitis C viruses (HCVs) are a group of small enveloped RNA viruses that have been viewed as a leading cause of chronic hepatitis in humans. Infections by HCV represent a serious global health problem, because millions of people worldwide are infected and no efficient treatment is available at the present time. Since HCV was identified in 1989, considerable effort has been devoted to the discovery and development of novel molecules to treat HCV-related diseases. One of the approaches is the development of novel inhibitors that interrupt the normal functions of HCV NS5B, an RNA-dependent RNA polymerase essential to HCV replication. This review summarizes recent advances in the biochemical and structural understanding of HCV NS5B polymerase as well as in the development of antiviral agents targeting this important enzyme.
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Affiliation(s)
- V J P Lévêque
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
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32
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Abstract
Hepatitis C virus (HCV) is the leading cause of chronic hepatitis in humans. As members of the flavivirus family, HCVs are a group of small single-stranded, positive-sense RNA viruses. Upon translation of the genome, a polyprotein precursor is synthesized and further processed by both cellular and viral proteases to generate functional viral proteins. Treatment options are currently limited to the administration of alpha-interferon alone or in combination with ribavirin. Unfortunately, these approaches are characterized by relatively poor efficacy and an unfavorable side-effect profile. Therefore, intensive effort is directed at the discovery of novel molecules to treat this disease. These new approaches include the development of prophylactic and therapeutic vaccines, the identification of interferons with improved pharmacokinetic characteristics, and the discovery of novel drugs designed to inhibit the function of three major viral proteins: protease, helicase and polymerase. Finally, the HCV RNA genome itself, particularly the IRES element, is being actively exploited as an antiviral target using antisense molecules and catalytic ribozymes. This review summarizes the most recent findings in each of these areas. Although not intended to be comprehensive, it should serve as a first resource for those individuals who desire updated information in this rapidly changing field.
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Affiliation(s)
- Q M Wang
- Infectious Diseases Research, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285, USA
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33
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Song HB, Wang QM, Zhang ZZ, Mak TC. A novel luminescent copper(I) complex containing an acetylenediide-bridged, butterfly-shaped tetranuclear core. Chem Commun (Camb) 2001:1658-9. [PMID: 12240430 DOI: 10.1039/b102717b] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel luminescent acetylenediide-bridged tetranuclear copper(I) complex [Cu4(mu-Ph2Ppypz)4(mu 4-eta 1,eta 2-C identical to C)]-(ClO4)2 [Ph2Ppypz = 2-(diphenylphosphino-6-pyrazol-1-yl)pyridine] has been synthesized and structurally characterized by X-ray crystallography.
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Affiliation(s)
- H B Song
- Department of Chemistry, Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, P. R. China
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34
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Wang QM, Mak TC. Argentophilicity and solvent-induced structural diversity in double salts of silver acetylide with silver perfluoroalkyl carboxylates. J Am Chem Soc 2001; 123:7594-600. [PMID: 11480980 DOI: 10.1021/ja0043441] [Citation(s) in RCA: 106] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of novel double salts of silver(I) were isolated by dissolving Ag(2)C(2) in a concentrated aqueous solution of R(F)CO(2)Ag (R(F) = CF(3), C(2)F(5)) and AgBF(4). Different ancillary solvento ligands such as H(2)O, CH(3)CN, and C(2)H(5)CN were found to affect the crystallization process that led to the assembly of various silver(I) cages with embedded C(2)(2-) ions. 2Ag(2)C(2) x 12CF(3)CO(2)Ag x 5H(2)O (1) consists of two independent C(2)@Ag(7) cages, each having the shape of a basket with a square base. Ag(2)C(2) x 6CF(3)CO(2)Ag x 3CH(3)CN (2) contains a zigzag chain of edge-sharing triangulated dodecahedra, and 4Ag(2)C(2) x 23CF(3)CO(2)Ag x 7C(2)H(5)CN x 2.5H(2)O (3) features an unusual double-walled silver column constructed from the fusion of four different kinds of irregular polyhedra. Ag(2)C(2) x 10C(2)F(5)CO(2)Ag x 9.5H(2)O (4), Ag(2)C(2) x 9C(2)F(5)CO(2)Ag x 3CH(3)CN x H(2)O (5), and Ag(2)C(2) x 6C(2)F(5)CO(2)Ag x 2C(2)H(5)CN (6) all contain an edge-sharing double cage with each single cage in the shape of a square antiprism, a capped square antiprism, and a triangulated dodecahedron, respectively.
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Affiliation(s)
- Q M Wang
- Contribution from the Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, P. R. China
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35
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Wang QM, Peery RB, Johnson RB, Alborn WE, Yeh WK, Skatrud PL. Identification and characterization of a monofunctional glycosyltransferase from Staphylococcus aureus. J Bacteriol 2001; 183:4779-85. [PMID: 11466281 PMCID: PMC99532 DOI: 10.1128/jb.183.16.4779-4785.2001] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A gene (mgt) encoding a monofunctional glycosyltransferase (MGT) from Staphylococcus aureus has been identified. This first reported gram-positive MGT shared significant homology with several MGTs from gram-negative bacteria and the N-terminal glycosyltransferase domain of class A high-molecular-mass penicillin-binding proteins from different species. S. aureus MGT contained an N-terminal hydrophobic domain perhaps involved with membrane association. It was expressed in Escherichia coli cells as a truncated protein lacking the hydrophobic domain and purified to homogeneity. Analysis by circular dichroism revealed that secondary structural elements of purified truncated S. aureus MGT were consistent with predicted structural elements, indicating that the protein might exhibit the expected folding. In addition, purified S. aureus MGT catalyzed incorporation of UDP-N-acetylglucosamine into peptidoglycan, proving that it was enzymatically active. MGT activity was inhibited by moenomycin A, and the reaction product was sensitive to lysozyme treatment. Moreover, a protein matching the calculated molecular weight of S. aureus MGT was identified from an S. aureus cell lysate using antibodies developed against purified MGT. Taken together, our results suggest that this enzyme is natively present in S. aureus cells and that it may play a role in bacterial cell wall biosynthesis.
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Affiliation(s)
- Q M Wang
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, USA.
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36
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Abstract
Hepatitis C virus (HCV) is the leading cause of chronic hepatitis in humans. As members of the flavivirus family, HCVs are a group of small single-stranded, positive-sense RNA viruses. Upon translation of the genome, a polyprotein precursor is synthesized and further processed by both cellular and viral proteases to generate functional viral proteins. Treatment options are currently limited to the administration of alpha-interferon alone or in combination with ribavirin. Unfortunately, these approaches are characterized by relatively poor efficacy and an unfavorable side-effect profile. Therefore, intensive effort is directed at the discovery of novel molecules to treat this disease. These new approaches include the development of prophylactic and therapeutic vaccines, the identification of interferons with improved pharmacokinetic characteristics, and the discovery of novel drugs designed to inhibit the function of three major viral proteins: protease, helicase and polymerase. Finally, the HCV RNA genome itself, particularly the IRES element, is being actively exploited as an antiviral target using antisense molecules and catalytic ribozymes. This review summarizes the most recent findings in each of these areas. Although not intended to be comprehensive, it should serve as a first resource for those individuals who desire updated information in this rapidly changing field.
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Affiliation(s)
- Q M Wang
- Infectious Diseases Research, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, IN 46285, USA
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37
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Abstract
The catalytic efficiency of human rhinovirus-14 (HRV14) 3C protease as a function of solvents and other regulators has been investigated using synthetic peptides as substrates. The proteolytic activity of HRV14 3C was found to be strongly stimulated by a series of anions in vitro and the activation was accompanied by changed Km, kcat, and increased kcat/Km values. A more than 72-fold increase in the 3C catalytic efficiency toward peptide substrates was observed in the presence of 0.8 M sodium sulfate. Several approaches, including size-exclusion chromatography and chemical cross-linking experiments, suggested that no oligomerization of the 3C enzyme occurred in the presence of activating anions. However, the anions did induce a significant conformational change of HRV14 3C protease, as revealed by circular dichroism spectrometry and tyrosine fluorescence analyses, which might contribute to 3C enzyme activation. Finally, the results obtained from 3C protease inhibitor studies suggested that the S1 specificity pocket of HRV14 3C was mainly affected by the activating anions. An induced-fit catalysis mechanism for viral proteases is discussed.
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Affiliation(s)
- Q M Wang
- Infectious Diseases Research, Eli Lilly and Company, Indianapolis, Indiana 46285, USA.
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38
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Zhang B, Wang QM, Chen HP. [Augmenter of liver regeneration: a novel cytokine]. Sheng Li Ke Xue Jin Zhan 2001; 32:31-4. [PMID: 12545774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Augmenter of liver regeneration (ALR) is a novel cytokine which specifically stimulates hepatic cell proliferation and is able to rescue acute liver failure caused by carbon tetrachloride. This article reviews the discovery, tissue distribution, functions and prospect of ALR and its relationship with hepatic stimulatory substance (HSS).
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Affiliation(s)
- B Zhang
- Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850
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39
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Abstract
The picornavirus family contains several human pathogens including human rhinovirus (HRV) and hepatitis A virus (HAV). In the case of HRVs, these small single-stranded positive-sense RNA viruses translate their genetic information into a polyprotein precursor which is further processed mainly by two viral proteases designated 2A and 3C. The 2A protease (2Apro) makes the first cleavage between the structural and non-structural proteins, while 3C protease (3Cpro) catalyzes most of the remaining internal cleavages. It has been shown that both 2Apro and 3Cpro are cysteine proteases but their overall protein folding is more like trypsin-type serine proteases. Due to their unique protein structure and essential roles in viral replication, 2Apro and 3Cpro have been viewed as excellent targets for antiviral intervention. In recent years, considerable efforts have been made in the development of antiviral compounds targeting these proteases. This article summarizes the recent approaches in the design of novel 2A and 3C protease inhibitors as potential antiviral agents for the treatment of picornaviral infections.
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Affiliation(s)
- Q M Wang
- Infectious Diseases Research, Lilly Research Labortories, Eli Lilly and Company, Indianapolis, IN 46285, USA
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40
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Peng SB, Wang L, Moomaw J, Peery RB, Sun PM, Johnson RB, Lu J, Treadway P, Skatrud PL, Wang QM. Biochemical characterization of signal peptidase I from gram-positive Streptococcus pneumoniae. J Bacteriol 2001; 183:621-7. [PMID: 11133956 PMCID: PMC94918 DOI: 10.1128/jb.183.2.621-627.2001] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2000] [Accepted: 10/25/2000] [Indexed: 11/20/2022] Open
Abstract
Bacterial signal peptidase I is responsible for proteolytic processing of the precursors of secreted proteins. The enzymes from gram-negative and -positive bacteria are different in structure and specificity. In this study, we have cloned, expressed, and purified the signal peptidase I of gram-positive Streptococcus pneumoniae. The precursor of streptokinase, an extracellular protein produced in pathogenic streptococci, was identified as a substrate of S. pneumoniae signal peptidase I. Phospholipids were found to stimulate the enzymatic activity. Mutagenetic analysis demonstrated that residues serine 38 and lysine 76 of S. pneumoniae signal peptidase I are critical for enzyme activity and involved in the active site to form a serine-lysine catalytic dyad, which is similar to LexA-like proteases and Escherichia coli signal peptidase I. Similar to LexA-like proteases, S. pneumoniae signal peptidase I catalyzes an intermolecular self-cleavage in vitro, and an internal cleavage site has been identified between glycine 36 and histidine 37. Sequence analysis revealed that the signal peptidase I and LexA-like proteases show sequence homology around the active sites and some common properties around the self-cleavage sites. All these data suggest that signal peptidase I and LexA-like proteases are closely related and belong to a novel class of serine proteases.
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Affiliation(s)
- S B Peng
- Infectious Diseases Research, Lilly Research Laboratories, Indianapolis, Indiana 46285, USA.
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41
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Kao CC, Yang X, Kline A, Wang QM, Barket D, Heinz BA. Template requirements for RNA synthesis by a recombinant hepatitis C virus RNA-dependent RNA polymerase. J Virol 2000; 74:11121-8. [PMID: 11070008 PMCID: PMC113194 DOI: 10.1128/jvi.74.23.11121-11128.2000] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.4] [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: 06/08/2000] [Accepted: 08/26/2000] [Indexed: 11/20/2022] Open
Abstract
The RNA-dependent RNA polymerase (RdRp) from hepatitis C virus (HCV), nonstructural protein 5B (NS5B), has recently been shown to direct de novo initiation using a number of complex RNA templates. In this study, we analyzed the features in simple RNA templates that are required to direct de novo initiation of RNA synthesis by HCV NS5B. NS5B was found to protect RNA fragments of 8 to 10 nucleotides (nt) from RNase digestion. However, NS5B could not direct RNA synthesis unless the template contained a stable secondary structure and a single-stranded sequence that contained at least one 3' cytidylate. The structure of a 25-nt template, named SLD3, was determined by nuclear magnetic resonance spectroscopy to contain an 8-bp stem and a 6-nt single-stranded sequence. Systematic analysis of changes in SLD3 revealed which features in the stem, loop, and 3' single-stranded sequence were required for efficient RNA synthesis. Also, chimeric molecules composed of DNA and RNA demonstrated that a DNA molecule containing a 3'-terminal ribocytidylate was able to direct RNA synthesis as efficiently as a sequence composed entirely of RNA. These results define the template sequence and structure sufficient to direct the de novo initiation of RNA synthesis by HCV RdRp.
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Affiliation(s)
- C C Kao
- Department of Biology, Indiana University, Bloomington, Indiana 47405, USA
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42
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Abstract
Human rhinovirus (HRV) 3C protease was inactivated by a series of S-nitrosothiols. These compounds exhibited different inhibitory activities in a time- and concentration-dependent manner with second-order rate constants (kinact/K(I)) ranging from 131 to 5360 M(-1) min(-1). The inactive enzyme could be re-activated by DTT, GSH and ascorbate, which indicated the inactivation mechanism was through an S-transnitrosylation process.
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Affiliation(s)
- M Xian
- Department of Chemistry, Wayne State University, Detroit, MI 48202, USA
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43
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Wang QM, Feinman R, Kashanchi F, Houghton JM, Studzinski GP, Harrison LE. Changes in E2F binding after phenylbutyrate-induced differentiation of Caco-2 colon cancer cells. Clin Cancer Res 2000; 6:2951-8. [PMID: 10914745] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
Differentiation agents use existing cellular systems to induce neoplastic cells to regain a normal phenotype and/or to cause growth arrest and therefore may offer novel chemotherapeutic approaches to treating solid tumors. In this study, we demonstrate in Caco-2 colon cancer cells that the differentiation agent phenylbutyrate (PB) causes a decrease in viable cells, an increase in cell differentiation, and a G1-S-phase block. The mechanism of this last effect is related to a PB-induced increase in p27Kip1, leading to a decrease in the activity of cyclin-dependent kinase 2 (CDK2), a positive regulator of the G1-S-phase cell cycle transition. Consistent with the decreased CDK2 kinase activity, we also observed a decrease in the phosphorylation state of the retinoblastoma protein after PB treatment. This was associated with increased binding and consequent inactivation of E2F, a transactivator of genes that regulate the G1 to S phase cell cycle transition. These data suggest that the differentiation agent PB inhibits tumor growth by limiting the availability of active E2F, with a subsequent G1-S-phase block. Additional studies should show whether PB is a clinically effective therapeutic agent against colorectal cancer.
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Affiliation(s)
- Q M Wang
- Department of Surgery, University of Medicine and Dentistry of New Jersey-New Jersey Medical School, Newark 07103, USA
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44
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Johnson RB, Sun XL, Hockman MA, Villarreal EC, Wakulchik M, Wang QM. Specificity and mechanism analysis of hepatitis C virus RNA-dependent RNA polymerase. Arch Biochem Biophys 2000; 377:129-34. [PMID: 10775451 DOI: 10.1006/abbi.2000.1749] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The RNA-dependent RNA polymerase encoded by the hepatitis C virus (HCV) NS5B gene has been expressed as a nonfusion protein in bacterial cells and purified to homogeneity using sequential chromatographic columns. The purified NS5B protein exhibited RNA-dependent RNA polymerase activity using poly(A) template and the K(m) and V(max) were determined as 8.4 microM and 1976 pmol/mg-min, respectively. This full-length NS5B protein exhibited much stronger binding affinity toward the 30-mer poly(G) than other homopolymeric RNAs of the same size. For the first time, we demonstrate that the HCV NS5B was able to bind various ribonucleotides. Using a panel of oligonucleotides varying in length, we studied the NS5B catalytic efficiency and proposed the size of the NS5B active site to be 8-10 nucleotides. The multifunctional nature of NS5B protein is also discussed and compared with other viral RNA polymerases.
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Affiliation(s)
- R B Johnson
- Infectious Diseases Research, Eli Lilly and Company, Indianapolis, Indiana 46285, USA
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45
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Wang QM, Chen GL, Wang YJ, Wang HS, Gao MH, Gong YZ. [An experimental study on inhibitory effect of xinjierkang granules on virus myocarditis]. Zhongguo Zhong Yao Za Zhi 2000; 25:293-6. [PMID: 12512454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To investigate the inhibitory effect of Xinjierkang(XJEK) granules on virus myocarditis. METHODS Using a model mouse of virus myocarditis induced by coxsackie virus B3m (CVB3m) and mouse toxic myocarditis induced by adriamycin, a model of arrhythmia induced by BaCl2 and CHCl3, a model of inflammation caused by egg white and agar, along with a dynamic test of cardiac blood flow and an inhibitory test of CVB3m in vitro. RESULTS XJEK granules are efficacious in inhibiting CVB3m both in vitro and in vivo, protecting and curing virus myocarditis and toxic myocarditis in mice, reducing mouse death rate, serum level of LDH, AST and CK, titer of neutralizing antibodies, virus concentration of heart, and improving the abnormal ECG, pathological and ultrastructural damage of myocadium. The granules are also good for anti-inflammation, anti-myocardial ischemia, anti-arrhythmia, as well as for strengthening myocardiac contraction and increasing the serum IgG level. CONCLUSION Xinjerkang granules possess an inhibitory effect on virus myocarditis and toxic myocarditis.
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Affiliation(s)
- Q M Wang
- Anhui College of TCM, Hefei 230038, Anhui, China
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46
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Abstract
p53/56(lyn) is a member of the src family that is predominantly expressed in hematopoietic cells and is thought to play a role in cellular proliferation. In this study, we demonstrate the participation of p53/56(lyn) in 1,25-dihydroxyvitamin D(3) (1, 25D(3))-induced growth arrest in HL60 cells. We show that the mRNA and protein levels of p53/56(lyn) are markedly elevated after 1, 25D(3) treatment, which is accompanied by an increase of p53/56(lyn) kinase activity. We also demonstrate that treatment with p53/56(lyn) antisense oligodeoxynucleotides reverses the 1,25D(3)-induced G1/S block, and results in an accumulation of cells with S-phase DNA content. BrdU pulse-chase experiments reveal that this accumulation results from an increased proportion of cells actively synthesizing DNA, which are inhibited from exiting the S-phase compartment. These results indicate that upregulation of p53/56(lyn) contributes significantly to the G1/S growth arrest induced by 1,25D(3) in HL60 cells and thus its activation may be a desirable outcome of chemotherapeutic regimens.
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Affiliation(s)
- Q M Wang
- Department of Surgery, UMDNJ-New Jersey Medical School, Newark, NJ 07103, USA
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47
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Abstract
The 65 kDa RNA-dependent RNA polymerase (NS5B), encoded by the hepatitis C virus (HCV) genome, is a key component involved in viral replication. Here we provide the direct evidence that purified HCV polymerase catalyzed de novo RNA synthesis in a primer-independent manner using homopolymers and HCV RNA as templates. The enzyme could utilize both polyC and polyU as templates for de novo RNA synthesis, suggesting that NS5B specifically recognized pyrimidine bases for initiation. More importantly, NS5B also catalyzed de novo RNA synthesis with an HCV RNA template; the resulting nascent RNA products, smaller than the template used, contained ATP as the first nucleotide. These results indicate that the newly synthesized RNAs did not result from template self-priming and suggest that a replication initiation site in the HCV RNA genome is a uridylate.
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Affiliation(s)
- X L Sun
- Infectious Diseases Research, Lilly Research Laboratories, Indianapolis, Indiana 46285, USA
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48
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Chen GL, Wang Y, Wang QM, Liu C, Cheng HJ, Han L. [Studies on antitussive, antiasthmatic, expectorant and anti-inflammatory effects of Jin'an kechuan granules]. Zhongguo Zhong Yao Za Zhi 2000; 25:107-10. [PMID: 12212071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
OBJECTIVE To study the pharmacologic effect of Jin'an Kechuan granules. METHOD Routine antitussive, antiasthmatic and expectorant methods were used. RESULT Jin'an Kechuan granules in the doses of 16, 8, 4 g.kg-1 ig could significantly decrease the frequency of cough caused by ammonia water in mice, and increase the secretion of phenol red from mouse tracheas in a dose-dependent manner. The granules also help increase the threshold voltage to induce cats to cough, prolong the latent period of asthma induced by histamine and acetylcholine mixture, and antagonize the contraction of isolated trachea strips induced by histamine and acetylcholine in guinea pigs. Jin'an Kechuan granules had inhibitory effects on common bacteria in the respiratory tract as well as on the swelling of acute inflammation in mice and rats. CONCLUSION Jin'an Kechuan granules have antitussive, antiasthmatic, expectorant and anti-inflammatory, antibacterial effects.
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Affiliation(s)
- G L Chen
- Department of Pharmacology, Anhui College of TCM, Anhui, Hefei 230038, China
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49
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Abstract
Cellular differentiation of neoplastic cells after exposure to 1, 25-dihydroxyvitamin D(3) (1,25 D(3)) is accompanied by altered cell cycle regulation. In previous studies, blocks in both G(1)/S and G(2)/M checkpoints have been observed in 1,25D(3)-treated HL60 cells, but the mechanism of the 1,25D(3)-induced G(2)/M block has not been previously reported. In this study, we show by cell cycle analysis, using bromodeoxyuridine pulse-chase labeling, that the G(2)/M block in 1,25D(3)-treated HL60 cells is incomplete. We also demonstrate that although the 1,25D(3)-treated cells exhibit elevated levels of cyclin B1, Cdc25C, and Cdk7, which are positive regulators of the G(2)/M traverse, these cells have decreased protein levels of p34(cdc2) and decreased p34(cdc2) kinase activity. This provides potential mechanisms for the observed accumulation of cells in the G(2) cell cycle compartment and occasional polyploidization following treatment of HL60 cells with 1,25D(3). The data also suggest that the ability of some cells to traverse this block may be the result of cellular compensatory mechanisms responding to decreased p34(cdc2) activity by increasing the levels of other regulators of the G(2) traverse, such as cyclin B1, Cdc25C, and Cdk7.
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Affiliation(s)
- L E Harrison
- Department of Surgery, UMDNJ-New Jersey Medical School, Newark, New Jersey 07103, USA
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50
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Harrison LE, Wang QM, Studzinski GP. Butyrate-induced G2/M block in Caco-2 colon cancer cells is associated with decreased p34cdc2 activity. Proc Soc Exp Biol Med 1999; 222:150-6. [PMID: 10564539 DOI: 10.1046/j.1525-1373.1999.d01-125.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Butyrate, a short-chain fatty acid, has been reported to inhibit proliferation and stimulate differentiation in multiple cancer cell lines. Whereas the effects of butyrate on cellular differentiation are well documented, the relationship between butyrate-induced differentiation and its effect on cell cycle traverse is less well understood. The purpose of this study was to investigate the effects of butyrate on the regulatory proteins of the G2/M traverse in the Caco-2 colon cancer cell model. We demonstrated that the inhibition of proliferation and increased cellular differentiation after treatment of Caco-2 cells with butyrate were associated with a significant G2/M cell cycle block. Although protein levels of the major G2/M regulatory protein, p34cdc2, were unchanged, a decrease in p34cdc2 activity was noted. Despite this decrease in activity, the inhibitory tyrosine phosphorylation of p34cdc2 was decreased, suggesting that other factors are responsible for the decreased kinase activity. The reduced activity of p34cdc2 provides a possible mechanism for the accumulation of Caco-2 cells in the G2/M cell cycle compartment following exposure to butyrate. This cell system provides a new model for studies of G2/M cell cycle perturbations.
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Affiliation(s)
- L E Harrison
- Department of Surgery, UMDNJ-New Jersey Medical School, Newark 07103, USA.
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