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Xie FH, Wu GH, Zhao X, Wan B, Yao R, Meng M, Liang L, Chen Q, Tang SJ. [Progress on health-related quality of life and its influencing factors in patients with tuberculosis sequelae]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:614-618. [PMID: 37278179 DOI: 10.3760/cma.j.cn112147-20221117-00904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
With the emergence of new tuberculosis patients, the number of patients with tuberculosis sequelae is increasing, which not only increases the medical burden of tuberculosis sequelae year by year, but also affects the health-related quality of life (HRQOL) of patients. The HRQOL of patients with tuberculosis sequelae has gradually received attention, but there are few relevant studies. Studies have shown that HRQOL is related to various factors such as post-tuberculosis lung disease, adverse reaction to anti-tuberculosis drugs, decreased physical activity, psychological barriers, low economic status and marital status. This article reviewed the current situation of HRQOL in patients with sequelae of tuberculosis and its influencing factors, in order to provide a reference for improving the quality of life of patients with sequelae of tuberculosis.
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Affiliation(s)
- F H Xie
- The 2nd Tuberculosis Ward of Chengdu Public Health Clinical Medical Center, Chengdu 610061, China
| | - G H Wu
- The 2nd Tuberculosis Ward of Chengdu Public Health Clinical Medical Center, Chengdu 610061, China
| | - X Zhao
- Nursing Department of Chengdu Public Health Clinical Medical Center, Chengdu 610061, China
| | - B Wan
- Nursing Department of Chengdu Public Health Clinical Medical Center, Chengdu 610061, China
| | - R Yao
- The 2nd Tuberculosis Ward of Chengdu Public Health Clinical Medical Center, Chengdu 610061, China
| | - M Meng
- Nursing Department of the Eighth Medical Center of PLA General Hospital, Beijing 100091, China
| | - L Liang
- The 2nd Tuberculosis Ward of Chengdu Public Health Clinical Medical Center, Chengdu 610061, China
| | - Q Chen
- The 2nd Tuberculosis Ward of Chengdu Public Health Clinical Medical Center, Chengdu 610061, China
| | - S J Tang
- Beijing Chest Hospital, Capital Medical University, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing 101149, China
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Liu L, Zhu M, Wang Y, Wan B, Jiang Z. [Molecular pathological mechanism of liver metabolic disorder in mice with severe spinal muscular atrophy]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:852-858. [PMID: 37313828 DOI: 10.12122/j.issn.1673-4254.2023.05.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To explore the molecular pathological mechanism of liver metabolic disorder in severe spinal muscular atrophy (SMA). METHODS The transgenic mice with type Ⅰ SMA (Smn-/- SMN20tg/2tg) and littermate control mice (Smn+/- SMN20tg/2tg) were observed for milk suckling behavior and body weight changes after birth. The mice with type Ⅰ SMA mice were given an intraperitoneal injection of 20% glucose solution or saline (15 μL/12 h), and their survival time was recorded. GO enrichment analysis was performed using the RNA-Seq data of the liver of type Ⅰ SMA and littermate control mice, and the results were verified using quantitative real-time PCR. Bisulfite sequencing was performed to examine CpG island methylation level in Fasn gene promoter region in the liver of the neonatal mice. RESULTS The neonatal mice with type Ⅰ SMA showed normal milk suckling behavior but had lower body weight than the littermate control mice on the second day after birth. Intraperitoneal injection of glucose solution every 12 h significantly improved the median survival time of type Ⅰ SMA mice from 9±1.3 to 11± 1.5 days (P < 0.05). Analysis of the RNA-Seq data of the liver showed that the expression of the target genes of PPARα related to lipid metabolism and mitochondrial β oxidation were down-regulated in the liver of type Ⅰ SMA mice. Type Ⅰ SMA mice had higher methylation level of the Fasn promoter region in the liver than the littermate control mice (76.44% vs 58.67%). In primary cultures of hepatocytes from type Ⅰ SMA mice, treatment with 5-AzaC significantly up-regulated the expressions of the genes related to lipid metabolism by over 1 fold (P < 0.01). CONCLUSION Type Ⅰ SMA mice have liver metabolic disorder, and the down-regulation of the target genes of PPARα related to lipid and glucose metabolism due to persistent DNA methylation contributes to the progression of SMA.
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Affiliation(s)
- L Liu
- Suzhou Medical College of Soochow University, Suzhou 215000, China
| | - M Zhu
- Suzhou Medical College of Soochow University, Suzhou 215000, China
| | - Y Wang
- Suzhou Medical College of Soochow University, Suzhou 215000, China
| | - B Wan
- Suzhou Medical College of Soochow University, Suzhou 215000, China
| | - Z Jiang
- Suzhou Medical College of Soochow University, Suzhou 215000, China
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Wan B, Wei LJ, Tan TM, Qin L, Wang H. Inhibitory effect and mechanism of Lactobacillus crispatus on cervical precancerous cells Ect1/E6E7 and screening of early warning factors. Infect Agent Cancer 2023; 18:5. [PMID: 36726132 PMCID: PMC9890743 DOI: 10.1186/s13027-023-00483-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 01/26/2023] [Indexed: 02/03/2023] Open
Abstract
OBJECTIVE To study the potential mechanism of Lactobacillus crispatus inhibiting cervical squamous intraepithelial lesion (SIL) and screen the early warning factors of SIL. METHODS The effects of Lactobacillus crispatus on the proliferation, apoptosis, cross pore migration and invasion and cytokines of cervical precancerous cells Ect1/E6E7 were detected respectively. The effect of Lactobacillus crispatus on the expression of differential proteins screened in Ect1/E6E7 cells were detected by Western blot. RESULTS Lactobacillus crispatus significantly inhibited the proliferation, induced apoptosis and inhibited cell migration of Ect1/E6E7 cells in a time-dependent manner (P < 0.05), but had no significant effect on cell invasion. Lactobacillus crispatus significantly promoted the secretion of Th1 cytokines and inhibited the secretion of Th2 cytokines by Ect1/E6E7 cells (P < 0.05). In addition, compared with SiHa cells in the control group, the expression of differential proteins PCNA, ATM, LIG1 and HMGB1 in Ect1/E6E7cells decreased significantly, while the expression of TDG and OGG1 proteins increased significantly (P < 0.05). ABCG2 protein in Ect1/E6E7 cells was slightly higher than that in SiHa cells, but the difference was not statistically significant. What is interesting is that Lactobacillus crispatus significantly inhibited the expression of ABCG2, PCNA, ATM, LIG1, OGG1 and HMGB1 proteins in Ect1/E6E7 cells, and promoted the expression of TDG protein. CONCLUSIONS Lactobacillus crispatus may inhibit the function of Ect1/E6E7 cells through multiple pathways and exert the potential to reverse the progression of SIL.
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Affiliation(s)
- B. Wan
- grid.256607.00000 0004 1798 2653Gynecologic Tumor Department, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Zhong Shan Street, Nanning, 530021 Guangxi Zhuang Autonomous Region China
| | - L. J. Wei
- grid.256607.00000 0004 1798 2653Gynecologic Tumor Department, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Zhong Shan Street, Nanning, 530021 Guangxi Zhuang Autonomous Region China
| | - T. M. Tan
- grid.256607.00000 0004 1798 2653Gynecologic Tumor Department, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Zhong Shan Street, Nanning, 530021 Guangxi Zhuang Autonomous Region China
| | - L. Qin
- grid.256607.00000 0004 1798 2653Gynecologic Tumor Department, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Zhong Shan Street, Nanning, 530021 Guangxi Zhuang Autonomous Region China
| | - H. Wang
- grid.256607.00000 0004 1798 2653Gynecologic Tumor Department, Guangxi Medical University Cancer Hospital, 71 Hedi Road, Zhong Shan Street, Nanning, 530021 Guangxi Zhuang Autonomous Region China
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Feng X, Huan F, Chen H, Lu F, Li Z, Li H, Li W, Wei G, Wan B, Zhang Y, Jing H, Wang S. PO-1874 Evaluating the use of SGRT in supraclavicular fossa positioning of mastectomy patients. Radiother Oncol 2022. [DOI: 10.1016/s0167-8140(22)03837-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Chen M, Li X, Wan B, Zhu S, Chen C, Zhang F, Song Y, Lv T. P36.08 Effect of Soluble CD39 and PD-L1 Levels on Diagnosis and Prognosis of Lung Cancer Patients with Malignant Pleural Effusion. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wan B, Ganier C, Du-Harpur X, Harun N, Watt FM, Patalay R, Lynch MD. Applications and future directions for optical coherence tomography in dermatology. Br J Dermatol 2020; 184:1014-1022. [PMID: 32974943 DOI: 10.1111/bjd.19553] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/08/2020] [Indexed: 12/24/2022]
Abstract
Optical coherence tomography (OCT) is a noninvasive optical imaging method that can generate high-resolution en face and cross-sectional images of the skin in vivo to a maximum depth of 2 mm. While OCT holds considerable potential for noninvasive diagnosis and disease monitoring, it is poorly understood by many dermatologists. Here we aim to equip the practising dermatologist with an understanding of the principles of skin OCT and the potential clinical indications. We begin with an introduction to the technology and discuss the different modalities of OCT including angiographic (dynamic) OCT, which can image cutaneous blood vessels at high resolution. Next we review clinical applications. OCT has been most extensively investigated in the diagnosis of keratinocyte carcinomas, particularly basal cell carcinoma. To date, OCT has not proven sufficiently accurate for the robust diagnosis of malignant melanoma; however, the evaluation of abnormal vasculature with angiographic OCT is an area of active investigation. OCT, and in particular angiographic OCT, also shows promise in monitoring the response to therapy of inflammatory dermatoses, such as psoriasis and connective tissues disease. We additionally discuss a potential role for artificial intelligence in improving the accuracy of interpretation of OCT imaging data.
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Affiliation(s)
- B Wan
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK
| | - C Ganier
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK
| | - X Du-Harpur
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK.,The Francis Crick Institute, 1 Midland Road, London, UK
| | - N Harun
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK
| | - F M Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK
| | - R Patalay
- St John's Institute of Dermatology, King's College London, London, UK
| | - M D Lynch
- Centre for Stem Cells and Regenerative Medicine, King's College London, Guy's Hospital, Great Maze Pond, London, UK.,St John's Institute of Dermatology, King's College London, London, UK
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Yuan L, Wan B, Bao YZ. [Association between ocular dominance and refraction in myopic subjects]. Zhonghua Yan Ke Za Zhi 2020; 56:693-698. [PMID: 32907303 DOI: 10.3760/cma.j.cn112142-20200206-00050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To determine the association between ocular dominance and myopic-astigmatic characteristics in myopic subjects. Methods: Cross-sectional study. A total of 1 503 myopic subjects visiting from the myopiac clinic from December 2011 to December 2012 were included. The spheres and cylinders were recorded. The ocular dominance was determined by the hole-in-the-card test. The average spherical equivalent (SE) and the cylinder between the dominant eyes and the non-dominant eyes were compared with the paired t test. The associations between ocular dominance laterality and refractive characters were analyzed with the crosstab Chi-square test. Results: There were 527 males and 976 females in this study. The median (min, max) of age was 24 (17, 49) years old. Among the subjects, 66.00% (992/1 503) of subjects were right-eye dominant, while 34.00% (511/1 503) of subjects were left-eye dominant. The dominant eyes had significantly lower average sphere powers [(-5.01±1.91) D vs. (-5.10±1.99) D] and lower average cylinder powers [(-0.70±0.68) D vs. (-0.76±0.73) D] than the non-dominant eyes (t=2.976, 4.319; both P<0.01). In the subgroups of |ΔSE|≤0.50 D, 0.50 D<|ΔSE|≤1.00 D, 1.00 D<|ΔSE|≤2.00 D and |ΔSE|>2.00 D, respectively, the dominant eyes were lower myopic in 49.37% (355/719), 51.10% (163/319), 58.48% (100/171) and 65.56% (59/90) of the subjects. The inter-group difference was statistically significant (χ²=11.588, P=0.009). In the subgroups of |ΔCyl|≤0.25 D, 0.25 D<|ΔCyl|≤0.50 D and |ΔCyl|>0.50 D, the dominant eyes had lower astigmatism in 53.94% (89/165), 65.66% (65/99) and 69.70% (46/66) of the subjects, respectively. The inter-group difference was statistically significant (χ²=6.414, P=0.040). Conclusion: The ocular dominance laterality is significantly associated with lower myopia and lower astigmatism in the myopic subjects. (Chin J Ophthalmol, 2020, 56: 693-698).
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Affiliation(s)
- L Yuan
- Department of Ophthalmology, Peking University People's Hospital, Eye Diseases and Optometry Institute, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, College of Optometry, Peking University Health Science Center, Beijing 100044, ChinaWan Bo was a graduate student and is now working at the Department of Ophthalmology, Beijing Luhe Hospital, Capital University of Medical Sciences, Beijing 101149, China
| | - B Wan
- Department of Ophthalmology, Peking University People's Hospital, Eye Diseases and Optometry Institute, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, College of Optometry, Peking University Health Science Center, Beijing 100044, ChinaWan Bo was a graduate student and is now working at the Department of Ophthalmology, Beijing Luhe Hospital, Capital University of Medical Sciences, Beijing 101149, China
| | - Y Z Bao
- Department of Ophthalmology, Peking University People's Hospital, Eye Diseases and Optometry Institute, Beijing Key Laboratory of Diagnosis and Therapy of Retinal and Choroid Diseases, College of Optometry, Peking University Health Science Center, Beijing 100044, ChinaWan Bo was a graduate student and is now working at the Department of Ophthalmology, Beijing Luhe Hospital, Capital University of Medical Sciences, Beijing 101149, China
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Kaur J, Nagy L, Wan B, Saleh H, Schulze A, Raiman J, Inbar-Feigenberg M. The utility of dried blood spot monitoring of branched-chain amino acids for maple syrup urine disease: A retrospective chart review study. Clin Chim Acta 2020; 500:195-201. [DOI: 10.1016/j.cca.2019.10.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 10/15/2019] [Accepted: 10/17/2019] [Indexed: 01/06/2023]
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Wan B, Xu C, Wang W, Zhang X, Zhang Q, Zhuang W, Zhu Y, Huang Z, Chen G, Fang M, Lv T, Song Y. EP1.03-19 The Frequency and Prognosis of MDM2 Mutations in East Asian Non-Small-Cell Lung Cancer Patients. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chen L, Jia J, Zang Y, Li J, Wan B. MicroRNA-101 regulates autophagy, proliferation and apoptosis via targeting EZH2 in laryngeal squamous cell carcinoma. Neoplasma 2019; 66:507-515. [PMID: 30868890 DOI: 10.4149/neo_2018_180811n611] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 12/19/2018] [Indexed: 11/08/2022]
Abstract
Laryngeal carcinoma is the second commonest head and neck carcinoma globally. MicroRNA-101 (miR-101) has been reported as a tumor suppressor in multiple malignancies including laryngeal squamous cell carcinoma (LSCC). However, the roles and molecular mechanisms of miR-101 in the development of LSCC have not been fully elucidated. In present study, RT-qPCR assay was performed to detect the expression of miR-101 and enhancer of zeste homolog 2 (EZH2) mRNA. Western blot assay was conducted to determine protein expression of LC3-Ⅰ, LC3-Ⅱ, p62 and EZH2. Cell proliferative capacity was evaluated by MTS assay. The effect of miR-101 alone or along with EZH2 on cell apoptosis was assessed by apoptotic index and caspase-3 activity. Bioinformatic analysis, luciferase assay and RNA immunoprecipitation (RIP) assay were carried out to investigate the interaction between miR-101 and EZH2. Results revealed that miR-101 expression was strikingly down-regulated in LSCC cell lines. Functional analyses showed that ectopic expression of miR-101 suppressed cell autophagy and proliferation and facilitated cell apoptosis in LSCC. Further investigations revealed that miR-101 inhibited EZH2 expression by direct interaction and EZH2 was highly expressed in LSCC cells. Also, EZH2 knockdown reduced the autophagic activity of LSCC cells. Moreover, restoration experiments showed that EZH2 up-regulation weakened miR-101-mediated anti-autophagy, anti-proliferation and pro-apoptosis effects in LSCC cells. In conclusion, our findings suggested that miR-101 inhibited autophagy and proliferation and promoted apoptosis via targeting EZH2 in LSCC, providing a deep insight into the pathogenesis of LSCC and hinting the pivotal roles of epigenetic modifications especially histone methylation in the development of LSCC.
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Affiliation(s)
- L Chen
- Department of Otolaryngology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - J Jia
- Department of Otolaryngology, People's Hospital of Xixian, People's Hospital of Zhengzhou University, Xinyang, China
| | - Y Zang
- Department of Otolaryngology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - J Li
- Department of Otolaryngology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, China
| | - B Wan
- Department of Otolaryngology, Henan Provincial People's Hospital, People's Hospital of Zhengzhou University, Zhengzhou, China
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Zhang J, Huang J, Chang JF, Wu CR, Heidbrink WW, Salewski M, Madsen B, Zhu YB, von Hellermann MG, Gao W, Xu Z, Wan B. Fast ion D-alpha measurements using a bandpass-filtered system on EAST. Rev Sci Instrum 2018; 89:10D121. [PMID: 30399922 DOI: 10.1063/1.5038828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 06/15/2018] [Indexed: 06/08/2023]
Abstract
Based on the charge exchange reaction between fast ions and a neutral beam, fast ion features can be inferred from the spectrum of Doppler-shifted Balmer-alpha light from energetic hydrogenic atoms. In order to study the interaction between instabilities and fast-ion transport, recently we extended the fast ion D-alpha (FIDA) measurements by using a combination of a bandpass filter and a photomultiplier tube (PMT) (f-FIDA). A bandpass filter selects the desired spectral band from 651 nm to 654 nm before detection by the PMT. Preliminary data from the EAST tokamak show that the active signals have been detected from reneutralized beam ions along the vertical and tangential viewing geometries. The details will be presented in this paper to primarily address the specifications and performance of f-FIDA hardware components and preliminary FIDA measurements.
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Affiliation(s)
- J Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - J Huang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - J F Chang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - C R Wu
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - W W Heidbrink
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | - M Salewski
- Department of Physics, Technical University of Denmark, Kongens Lyngby, Denmark
| | - B Madsen
- Department of Physics, Technical University of Denmark, Kongens Lyngby, Denmark
| | - Y B Zhu
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | | | - W Gao
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - Z Xu
- Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - B Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
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Liao Y, Liu X, Wan B, Zhang H, Cai P. The effects of high-voltage electric field on microbial communities in paddy soil. N Biotechnol 2018. [DOI: 10.1016/j.nbt.2018.05.946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
OBJECTIVE P3H4, as a kind of quinone compounds, is a coenzyme Q10 (ubiquinone) analogues. A recent study investigated the role of P3H4 on cerebral ischemia-reperfusion and hypertension. It is well known that ischemia-reperfusion is closely associated with kidney disease. This study aims to investigate the impact of P3H4 in the occurrence and development of the tumor. MATERIALS AND METHODS A total of 40 rats at 8-week old were selected to establish renal cancer model by burying suture method for 4 months. The rats in the experimental group received P3H4 treatment at 100 mg/kg every 48 h for consecutive 4 weeks, while the rats in control received normal saline. H&E staining was applied to test the histological changes of tissue at 0, 1, 2 weeks after treatment. Gene microarray was adopted to screen miRNA expression to explore the function of miRNA in renal cancer cell line. Renal cancer cell migration and invasion were evaluated by wound healing and transwell assays after the treatment of P3H4, miR-1a, miR-133a, respectively. RESULTS The rats were randomly equally divided into experimental group and control. HE staining result showed renal interstitial fibroblasts hyperplasia, renal tubular necrosis, and glomerular reduction after modeling. P3H4 treatment significantly alleviated the lesion severity and inhibited the tumor cells invasion. Microarray demonstrated that miR-1a and miR-133a were significantly upregulated in rat renal cancer tissue after the treatment of P3H4. The overexpression of miR-1a and miR-133a markedly reduced renal cell invasion and migration, which was consistent with the effect of P3H4. CONCLUSIONS P3H4 suppressed the development of renal carcinoma through upregulating miR-1a and miR-13a, which provides fundamental leads for the future anti-cancer therapy.
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Affiliation(s)
- B Wan
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China.
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Liu Y, Wan B, Lin S. Letter: significant burden of nonalcoholic fatty liver disease with advanced fibrosis in the USA: a cross-sectional analysis of 2011-2014 National Health and Nutrition Examination Survey. Aliment Pharmacol Ther 2018; 48:584-585. [PMID: 30156322 DOI: 10.1111/apt.14850] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Y Liu
- Liver Research Center, the First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China.,The First Clinical Medical Collage of Fujian Medical University, Fuzhou, Fujian, China
| | - B Wan
- Institute of Neurology, University College London, London, UK
| | - S Lin
- Liver Research Center, the First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian, China
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Deranian RD, Ferron JR, Humphreys DA, Johnson RD, Leuer JA, Penaflor BG, Walker ML, Welander AS, Wan B, Gribov Y, Kwon M, Jhang H, Khayrutdinov RR. Integrated Plasma Control in Next-Generation Devices Using DIII-D Modeling and Simulation Approaches. Fusion Science and Technology 2017. [DOI: 10.13182/fst05-a779] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- R. D. Deranian
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - J. R. Ferron
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - D. A. Humphreys
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - R. D. Johnson
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - J. A. Leuer
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - B. G. Penaflor
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - M. L. Walker
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - A. S. Welander
- General Atomics, P.O. Box 85608, San Diego, California 92186-5608
| | - B. Wan
- Academia Sinica, IPP, P.O. Box 1126, Hefei 230031, Anhui Province China
| | - Y. Gribov
- ITER Naka, 801-1 Mukouyama, Naka-machi, Naka-gun, Ibaraki-ken, 31-0193
| | - M. Kwon
- Korea Basic Sciences Institute, Daejeon, Republic of Korea
| | - H. Jhang
- Korea Basic Sciences Institute, Daejeon, Republic of Korea
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Huang J, Heidbrink WW, von Hellermann MG, Stagner L, Wu CR, Hou YM, Chang JF, Ding SY, Chen YJ, Zhu YB, Jin Z, Xu Z, Gao W, Wang JF, Lyu B, Zang Q, Zhong GQ, Hu L, Wan B. Validation of fast-ion D-alpha spectrum measurements during EAST neutral-beam heated plasmas. Rev Sci Instrum 2016; 87:11E542. [PMID: 27910390 DOI: 10.1063/1.4960308] [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: 06/06/2023]
Abstract
To investigate the fast ion behavior, a fast ion D-alpha (FIDA) diagnostic system has been installed on EAST. Fast ion features can be inferred from the Doppler shifted spectrum of Balmer-alpha light from energetic hydrogenic atoms. This paper will focus on the validation of FIDA measurements performed using MHD-quiescent discharges in 2015 campaign. Two codes have been applied to calculate the Dα spectrum: one is a Monte Carlo code, Fortran 90 version FIDASIM, and the other is an analytical code, Simulation of Spectra (SOS). The predicted SOS fast-ion spectrum agrees well with the measurement; however, the level of fast-ion part from FIDASIM is lower. The discrepancy is possibly due to the difference between FIDASIM and SOS velocity distribution function. The details will be presented in the paper to primarily address comparisons of predicted and observed spectrum shapes/amplitudes.
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Affiliation(s)
- J Huang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - W W Heidbrink
- University of California, Irvine, California 92697, USA
| | - M G von Hellermann
- Diagnostic Team, ITER Organization, Route de Vinon-sur-Verdon 13067 St. Paul Lez Durance, France
| | - L Stagner
- University of California, Irvine, California 92697, USA
| | - C R Wu
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - Y M Hou
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - J F Chang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - S Y Ding
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - Y J Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - Y B Zhu
- University of California, Irvine, California 92697, USA
| | - Z Jin
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - Z Xu
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - W Gao
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - J F Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - B Lyu
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - Q Zang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - G Q Zhong
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - L Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
| | - B Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, 230031 Hefei, Anhui, China
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Wang X, Wang P, Li J, Yuan K, Yin G, Wan B, Lang J. Image Guided Radiation Therapy Boost in Combination With High-Dose-Rate Intracavitary Brachytherapy for the Treatment of Cervical Cancer. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sun Y, Liang Y, Liu YQ, Gu S, Yang X, Guo W, Shi T, Jia M, Wang L, Lyu B, Zhou C, Liu A, Zang Q, Liu H, Chu N, Wang HH, Zhang T, Qian J, Xu L, He K, Chen D, Shen B, Gong X, Ji X, Wang S, Qi M, Song Y, Yuan Q, Sheng Z, Gao G, Fu P, Wan B. Nonlinear Transition from Mitigation to Suppression of the Edge Localized Mode with Resonant Magnetic Perturbations in the EAST Tokamak. Phys Rev Lett 2016; 117:115001. [PMID: 27661697 DOI: 10.1103/physrevlett.117.115001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Indexed: 06/06/2023]
Abstract
Evidence of a nonlinear transition from mitigation to suppression of the edge localized mode (ELM) by using resonant magnetic perturbations (RMPs) in the EAST tokamak is presented. This is the first demonstration of ELM suppression with RMPs in slowly rotating plasmas with dominant radio-frequency wave heating. Changes of edge magnetic topology after the transition are indicated by a gradual phase shift in the plasma response field from a linear magneto hydro dynamics modeling result to a vacuum one and a sudden increase of three-dimensional particle flux to the divertor. The transition threshold depends on the spectrum of RMPs and plasma rotation as well as perturbation amplitude. This means that edge topological changes resulting from nonlinear plasma response plays a key role in the suppression of ELM with RMPs.
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Affiliation(s)
- Y Sun
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - Y Liang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
- Institute for Energy and Climate Research-Plasma Physics, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Y Q Liu
- CCFE Culham Science Centre, Abingdon, OX14 3DB, United Kingdom
| | - S Gu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - X Yang
- School of Physics and Optoelectronic Engineering, Dalian University of Technology, Dalian 116024, China
| | - W Guo
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - T Shi
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - M Jia
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - L Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - B Lyu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - C Zhou
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - A Liu
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Q Zang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - H Liu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - N Chu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - H H Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - T Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - J Qian
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - L Xu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - K He
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - D Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - B Shen
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - X Gong
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - X Ji
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - S Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - M Qi
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - Y Song
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - Q Yuan
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - Z Sheng
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - G Gao
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - P Fu
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
| | - B Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, PO Box 1126, Hefei 230031, China
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Liu M, Hou HM, Li X, Zhang YQ, Wan B, Wang JY, Jin B. [Value of prostate volume, PSAD and F/T in the detection of prostate cancer in males with PSA 4-10 μg/L]. Zhonghua Zhong Liu Za Zhi 2016; 38:526-9. [PMID: 27531267 DOI: 10.3760/cma.j.issn.0253-3766.2016.07.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To evaluate the association of prostate volume, PSAD and F/T with prostate cancer detection rate in males with a total PSA of 4-10 μg/L. METHODS Clinical data of 196 patients who underwent prostate biopsy from November 2006 to September 2010 and with a PSA of 4-10 μg/L were retrospectively analyzed. The association of detection rate of prostate cancer with prostate volume, prostate specific antigen density PSAD) and free PSA/total PSA ratio (F/T) was analyzed by Spearman coefficient, receiver operating characteristic curve and logistic regression analysis. RESULTS The prostate volume, PSAD and F/T had a significant association with detection rate of prostate cancer (P<0.05 for all). The odd ratio was 0.96, 1.91 and 0.02, respectively. The area under curve (AUR) was 0.31, 0.66 and 0.63, respectively. The cancer detection rate was decreased along with the increase of prostate volume. When PSAD 0.15 ng·ml(-1)·ml(-1) was used as the cut-off value, the sensitivity, specificity, positive prediction rate and negative prediction rate was 72.3%, 51.1%, 42.3% and 21.2%, respectively. When the patients were divided by prostate volume into <19.9, 20-39.9, 40-59.9, 60-79.9 and >80 ml subgroups, the cancer detection rate of each subgroup was 50.0%, 45.6%, 30.8%, 15.4% and 5.6%, respectively. CONCLUSION In patients with a total PSA of 4-10 μg/L, the prostate cancer detection rate has a significant association with prostate volume, PSAD and F/T.
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Affiliation(s)
- M Liu
- Department of Urology, Beijing Hospital of the Ministry of Health, Beijing 100000, China
| | - H M Hou
- Department of Urology, Beijing Hospital of the Ministry of Health, Beijing 100000, China
| | - X Li
- Department of Urology, Beijing Hospital of the Ministry of Health, Beijing 100000, China
| | - Y Q Zhang
- Department of Urology, Beijing Hospital of the Ministry of Health, Beijing 100000, China
| | - B Wan
- Department of Urology, Beijing Hospital of the Ministry of Health, Beijing 100000, China
| | - J Y Wang
- Department of Urology, Beijing Hospital of the Ministry of Health, Beijing 100000, China
| | - B Jin
- Department of Urology, Beijing Hospital of the Ministry of Health, Beijing 100000, China
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Wan B, Tan J, Zeng Q, He LY, Gan Y, Dai YB, Yao K. 729G/C polymorphism in Toll-like receptor 4 results in increased susceptibility to bladder cancer. Genet Mol Res 2015; 14:15482-7. [PMID: 26634514 DOI: 10.4238/2015.november.30.26] [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: 11/03/2022]
Abstract
In this study, the association between the 729G/C polymorphism in Toll-like receptor 4 (TLR4) and the risk of bladder cancer was investigated. A total of 376 patients with bladder cancer and 380 healthy volunteers from the Third Xiangya Hospital of Central South University (China) were enrolled in this study between January 2008 and February 2014. The TLR4-729G/C polymorphism was detected by the polymerase chain reaction-restriction fragment length polymorphism assay. There was a significant difference in the distribution of the TLR4-729G/C genotype between bladder cancer patients and healthy controls (P < 0.001). Our analysis showed that the GC genotype (OR = 2.99; 95%CI = 1.01-4.81, P = 0.046) and CC genotype (OR = 3.67; 95%CI = 2.11-7.27, P = 0.017) were significantly associated with increased bladder cancer risk when the GG genotype served as a reference. Furthermore, carriers of the C allele had a significantly increased risk of developing bladder cancer (OR = 3.89; 95%CI = 2.88-8.53; P = 0.009). Our results suggest a correlation between the TLR4-729G/C polymorphism and the risk of developing bladder cancer in this Chinese population.
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Affiliation(s)
- B Wan
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - J Tan
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Q Zeng
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - L Y He
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Y Gan
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - Y B Dai
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
| | - K Yao
- Department of Urology, The Third Xiangya Hospital of Central South University, Changsha, Hunan, China
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Lei B, Xing R, Zhou X, Lv D, Wan B, Shu F, Zhong L, Wu H, Mao X. Neutral alpha-1,4-glucosidase and fructose levels contribute to discriminating obstructive and nonobstructive azoospermia in Chinese men with azoospermia. Andrologia 2015; 48:670-5. [PMID: 26610429 DOI: 10.1111/and.12498] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2015] [Indexed: 12/27/2022] Open
Affiliation(s)
- B. Lei
- Department of Urology; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong Province China
- Department of Urology; Peking University Shenzhen Hospital; Shenzhen Guangdong Province China
| | - R. Xing
- Department of Urology; Weihai Hospital; Qingdao University; Qingdao Shandong Province China
| | - X. Zhou
- Department of Urology; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong Province China
| | - D. Lv
- Department of Urology; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong Province China
| | - B. Wan
- Department of Urology; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong Province China
| | - F. Shu
- Department of Urology; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong Province China
| | - L. Zhong
- Department of Urology; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong Province China
| | - H. Wu
- Department of Urology; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong Province China
| | - X. Mao
- Department of Urology; Nanfang Hospital; Southern Medical University; Guangzhou Guangdong Province China
- Department of Urology; Peking University Shenzhen Hospital; Shenzhen Guangdong Province China
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Zhang X, Chen L, Luo P, Ju Y, Zhang H, Ma F, Ge H, Zhang Y, Wan B, Li Y, Xu X, Mao W. TL response of LiF:Mg,Cu,P (GR200A and GR207A) exposed to high-energy 12C ions. RADIAT MEAS 2015. [DOI: 10.1016/j.radmeas.2014.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ji X, Song YT, Shen G, Zhou Z, Cao L, Xu T, Liu X, Peng X, Wang C, Wang S, Zhu N, Zhang P, Wu J, Gong X, Shen B, Gao D, Fu P, Wan B, Li J. Engineering Design of EAST Passive Stabilization Loop. J Fusion Energ 2014. [DOI: 10.1007/s10894-014-9827-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Huang J, Heidbrink WW, Wan B, von Hellermann MG, Zhu Y, Gao W, Wu C, Li Y, Fu J, Lyu B, Yu Y, Shi Y, Ye M, Hu L, Hu C. Conceptual design of a fast-ion D-alpha diagnostic on experimental advanced superconducting tokamak. Rev Sci Instrum 2014; 85:11E407. [PMID: 25430314 DOI: 10.1063/1.4887820] [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] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To investigate the fast ion behavior, a fast ion D-alpha (FIDA) diagnostic system has been planned and is presently under development on Experimental Advanced Superconducting Tokamak. The greatest challenges for the design of a FIDA diagnostic are its extremely low intensity levels, which are usually significantly below the continuum radiation level and several orders of magnitude below the bulk-ion thermal charge-exchange feature. Moreover, an overlaying Motional Stark Effect (MSE) feature in exactly the same wavelength range can interfere. The simulation of spectra code is used here to guide the design and evaluate the diagnostic performance. The details for the parameters of design and hardware are presented.
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Affiliation(s)
- J Huang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. 1126, 230031 Hefei, Anhui, China
| | - W W Heidbrink
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | - B Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. 1126, 230031 Hefei, Anhui, China
| | - M G von Hellermann
- FOM Institute DIFFER, P.O. BOX 1207, Nieuwegein 3430 BE, The Netherlands
| | - Y Zhu
- Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
| | - W Gao
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - C Wu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Y Li
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - J Fu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - B Lyu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Y Yu
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Y Shi
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - M Ye
- School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - L Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. 1126, 230031 Hefei, Anhui, China
| | - C Hu
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. 1126, 230031 Hefei, Anhui, China
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Tong B, Wan B, Wei Z, Wang T, Zhao P, Dou Y, Lv Z, Xia Y, Dai Y. Role of cathepsin B in regulating migration and invasion of fibroblast-like synoviocytes into inflamed tissue from patients with rheumatoid arthritis. Clin Exp Immunol 2014; 177:586-97. [PMID: 24749816 PMCID: PMC4137842 DOI: 10.1111/cei.12357] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/14/2014] [Indexed: 12/27/2022] Open
Abstract
Cathepsin B (CB), an important proteinase that participates in joint destruction in rheumatoid arthritis (RA), exhibits higher expression in fibroblast-like synoviocyte (FLS) of abnormal proliferative synovial tissues. Whether and how it affects the biological behaviours of RA-FLS, such as migration and invasion, are poorly understood. In the present study, CB expression in synovial tissues of patients with RA and ostearthritis (OA) were measured by quantitative polymerase chain reaction (qPCR) and immunohistochemistry (IHC), respectively. Stable depletion of endogenous CB was achieved by small interfering RNA (siRNA) transfection, and decrease of CB activity was acquired by using its specific inhibitor (CA074Me). The effects of CA074Me and RNA interference (RNAi) treatments on proliferation, migration, invasion, matrix metalloproteinase (MMP)-2/-9 expression, focal adhesion kinase (FAK) activation, and mitogen-activated protein kinases (MAPKs) phosphorylation of FLS were analysed. In RA synovial tissues, CB was expressed at elevated levels compared with OA synovial tissues. CA074Me could inhibit invasion of FLS obtained from RA patients in an ex-vivo invasion model. CA074Me and siRNA treatments suppressed the migration and invasion of FLS, reduced the activity, expression and mRNA level of MMP-2, restrained the activation of FAK and reduced the expression of F-actin. Moreover, CA074Me decreased the phosphorylation of P38 MAPK and c-Jun N-terminal kinase (JNK) in FLS, while siCB treatment reduced the phosphorylation of P38 but not JNK. CB substantially contributes to the invasive phenotype of FLS that leads to joint destruction in RA. This proteinase may show promise as a therapeutic target in inflammatory arthritis.
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Affiliation(s)
- B Tong
- Department of Pharmacology of Chinese Materia Medica, China Pharmaceutical University, Nanjing, China
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Iyer A, Gao L, Doyle A, Rao P, Jayewardene D, Wan B, Kumarasinghe G, Jabbour A, Hicks M, Jansz PC, Feneley MP, Harvey RP, Graham RM, Dhital KK, Macdonald PS. Increasing the tolerance of DCD hearts to warm ischemia by pharmacological postconditioning. Am J Transplant 2014; 14:1744-52. [PMID: 25040306 DOI: 10.1111/ajt.12782] [Citation(s) in RCA: 94] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Revised: 03/10/2014] [Accepted: 03/30/2014] [Indexed: 01/25/2023]
Abstract
Donation after circulatory death (DCD) offers a potential additional source of cardiac allografts. We used a porcine asphyxia model to evaluate viability of DCD hearts subjected to warm ischemic times (WIT) of 20–40 min prior to flushing with Celsior (C) solution. We then assessed potential benefits of supplementing C with erythropoietin, glyceryl trinitrate and zoniporide (Cs), a combination that we have shown previously to activate ischemic postconditioning pathways. Hearts flushed with C/Cs were assessed for functional, biochemical and metabolic recovery on an ex vivo working heart apparatus. Hearts exposed to 20-min WIT showed full recovery of functional and metabolic profiles compared with control hearts (no WIT). Hearts subjected to 30- or 40-min WIT prior to C solution showed partial and no recovery, respectively. Hearts exposed to 30-min WIT and Cs solution displayed complete recovery, while hearts exposed to 40-min WIT and Cs solution demonstrated partial recovery. We conclude that DCD hearts flushed with C solution demonstrate complete recovery up to 20-min WIT after which there is rapid loss of viability. Cs extends the limit of WIT tolerability to 30 min. DCD hearts with ≤30-min WIT may be suitable for transplantation and warrant assessment in a transplant model.
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Pang K, Tang Q, Schiffbauer JD, Yao J, Yuan X, Wan B, Chen L, Ou Z, Xiao S. The nature and origin of nucleus-like intracellular inclusions in Paleoproterozoic eukaryote microfossils. Geobiology 2013; 11:499-510. [PMID: 24033870 DOI: 10.1111/gbi.12053] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Accepted: 07/23/2013] [Indexed: 05/19/2023]
Abstract
The well-known debate on the nature and origin of intracellular inclusions (ICIs) in silicified microfossils from the early Neoproterozoic Bitter Springs Formation has recently been revived by reports of possible fossilized nuclei in phosphatized animal embryo-like fossils from the Ediacaran Doushantuo Formation of South China. The revisitation of this discussion prompted a critical and comprehensive investigation of ICIs in some of the oldest indisputable eukaryote microfossils-the ornamented acritarchs Dictyosphaera delicata and Shuiyousphaeridium macroreticulatum from the Paleoproterozoic Ruyang Group of North China-using a suite of characterization approaches: scanning electron microscopy (SEM), transmission electron microscopy (TEM), and focused ion beam scanning electron microscopy (FIB-SEM). Although the Ruyang acritarchs must have had nuclei when alive, our data suggest that their ICIs represent neither fossilized nuclei nor taphonomically condensed cytoplasm. We instead propose that these ICIs likely represent biologically contracted and consolidated eukaryotic protoplasts (the combination of the nucleus, surrounding cytoplasm, and plasma membrane). As opposed to degradational contraction of prokaryotic cells within a mucoidal sheath-a model proposed to explain the Bitter Springs ICIs-our model implies that protoplast condensation in the Ruyang acritarchs was an in vivo biologically programmed response to adverse conditions in preparation for encystment. While the discovery of bona fide nuclei in Paleoproterozoic acritarchs would be a substantial landmark in our understanding of eukaryote evolution, the various processes (such as degradational and biological condensation of protoplasts) capable of producing nuclei-mimicking structures require that interpretation of ICIs as fossilized nuclei be based on comprehensive investigations.
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Affiliation(s)
- K Pang
- State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing, China; Department of Geosciences, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
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Iyer A, Doyle A, Gao L, Kumarasinghe G, Wan B, Jabbour A, Hicks M, Jansz P, Dhital K, Macdonald P. Hearts from Donations After Circulatory Death (DCD) Donors – Assessment on Clinically Approved Ex-vivo Organ Care System. Heart Lung Circ 2013. [DOI: 10.1016/j.hlc.2013.03.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Xu J, Zhang Y, Xiao Y, Ma S, Liu Q, Dang S, Jin M, Shi Y, Wan B, Zhang Y. Inhibition of 12/15-lipoxygenase by baicalein induces microglia PPARβ/δ: a potential therapeutic role for CNS autoimmune disease. Cell Death Dis 2013; 4:e569. [PMID: 23559003 PMCID: PMC3668632 DOI: 10.1038/cddis.2013.86] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
12/15-Lipoxygenase (12/15-LO) is an enzyme that converts polyunsaturated fatty acids into bioactive lipid derivatives. In this study, we showed that inhibition of 12/15-LO by baicalein (BA) significantly attenuated clinical severity of experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis (MS). Inhibited migration of autoimmune T cells into the central nervous system (CNS) by BA treatment could be attributed to reduced activation of microglia, which was indicated by suppressed phagocytosis, and decreased production of proinflammatory cytokines and chemokines in the CNS. We further observed that inhibition of 12/15-LO with BA led to increased expression of peroxisome proliferator-activated receptor (PPAR)β/δ in microglia of EAE mice. This was confirmed in vitro in primary microglia and a microglia cell line, BV2. In addition, we demonstrated that BA did not affect 12/15-LO or 5-lipoxygenase (5-LO) expression in microglia, but significantly decreased 12/15-LO products without influencing the levels of 5-LO metabolites. Moreover, among these compounds only 12/15-LO metabolite 12-hydroxyeicosatetraenoic acid was able to reverse BA-mediated upregulation of PPARβ/δ in BV2 cells. We also showed that inhibition of microglia activation by PPARβ/δ was associated with repressed NF-κB and MAPK activities. Our findings indicate that inhibition of 12/15-LO induces PPARβ/δ, demonstrating important regulatory properties of 12/15-LO in CNS inflammation. This reveals potential therapeutic applications for MS.
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Affiliation(s)
- J Xu
- Shanghai Institute of Immunology, Institutes of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Lu B, Wang F, Shi Y, Bitter M, Hill KW, Lee SG, Fu J, Li Y, Wan B. Upgrades of the high resolution imaging x-ray crystal spectrometers on experimental advanced superconducting tokamak. Rev Sci Instrum 2012; 83:10E130. [PMID: 23126951 DOI: 10.1063/1.4738652] [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: 06/01/2023]
Abstract
Two imaging x-ray crystal spectrometers, the so-called "poloidal" and "tangential" spectrometers, were recently implemented on experimental advanced superconducting tokamak (EAST) to provide spatially and temporally resolved impurity ion temperature (T(i)), electron temperature (T(e)) and rotation velocity profiles. They are derived from Doppler width of W line for Ti, the intensity ratio of Li-like satellites to W line for Te, and Doppler shift of W line for rotation. Each spectrometer originally consisted of a spherically curved crystal and a two-dimensional multi-wire proportional counter (MWPC) detector. Both spectrometers have now been upgraded. The layout of the tangential spectrometer was modified, since it had to be moved to a different port, and the spectrometer was equipped with two high count rate Pilatus detectors (Model 100 K) to overcome the count rate limitation of the MWPC and to improve its time resolution. The poloidal spectrometer was equipped with two spherically bent crystals to record the spectra of He-like and H-like argon simultaneously and side by side on the original MWPC. These upgrades are described, and new results from the latest EAST experimental campaign are presented.
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Affiliation(s)
- B Lu
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, Anhui, China.
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31
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Gong Y, Wan B, Walsh W, Verjee Z, Adeli K. Routine simultaneous measurement of 25-hydroxyvitamin D2 and D3 by isotope-dilution liquid chromatography–tandem mass spectrometry assay. Clin Biochem 2008. [DOI: 10.1016/j.clinbiochem.2008.08.016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wan B, Yarbrough JW, Schultz TW. Structure-related clustering of gene expression fingerprints of thp-1 cells exposed to smaller polycyclic aromatic hydrocarbons. SAR QSAR Environ Res 2008; 19:351-373. [PMID: 18637284 DOI: 10.1080/10629360802083798] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This study was undertaken to test the hypothesis that structurally similar PAHs induce similar gene expression profiles. THP-1 cells were exposed to a series of 12 selected PAHs at 50 microM for 24 hours and gene expressions profiles were analyzed using both unsupervised and supervised methods. Clustering analysis of gene expression profiles revealed that the 12 tested chemicals were grouped into five clusters. Within each cluster, the gene expression profiles are more similar to each other than to the ones outside the cluster. One-methylanthracene and 1-methylfluorene were found to have the most similar profiles; dibenzothiophene and dibenzofuran were found to share common profiles with fluorine. As expression pattern comparisons were expanded, similarity in genomic fingerprint dropped off dramatically. Prediction analysis of microarrays (PAM) based on the clustering pattern generated 49 predictor genes that can be used for sample discrimination. Moreover, a significant analysis of Microarrays (SAM) identified 598 genes being modulated by tested chemicals with a variety of biological processes, such as cell cycle, metabolism, and protein binding and KEGG pathways being significantly (p < 0.05) affected. It is feasible to distinguish structurally different PAHs based on their genomic fingerprints, which are mechanism based.
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Affiliation(s)
- B Wan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-environmental Sciences, The Chinese Academy of Science, Beijing, China
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Wan B, Sayler GS, Schultz TW. Structure-activity relationships for flow cytometric data of smaller polycyclic aromatic hydrocarbons. SAR QSAR Environ Res 2006; 17:597-605. [PMID: 17162389 DOI: 10.1080/10629360601033374] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Using flow cytometry, select polycyclic aromatic hydrocarbons (PAHs) were evaluated for induction of apoptosis in human monocytic THP-1 cells. Based on structure, the PAHs were divided into linear and bay-region-containing compounds. Except for fluorene, the linear PAHs failed to induce apoptosis; all of the bay-region-containing PAHs induce apoptosis. The relationship that a bay-region is required to induce apoptosis is supported by results for benzo[a]pyrene (positive) and 2-methylanthracene (negative). The data for bay-region containing, four-ringed PAH compounds reveal that possessing a linear-region of more than two rings diminishes the ability of a PAH to induce apoptosis. Owing to the steric interactions of the hydrogen atoms of the methyl group and those on the ring carbons, 1-methylanthracene does not have a true bay-region. However, the methyl group substituted in the 1-position does confer a bay-like conformation, which may explain its activity in contrast to its parent derivative anthracene and its 2-postion homologue.
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Affiliation(s)
- B Wan
- Department of Comparative Medicine, College of Veterinary Medicine, The University of Tennessee, Room A205, 2407 River Drive, Knoxville, Tennessee 37996-4543, USA
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Leuer J, Deranian R, Ferron J, Humphreys D, Johnson R, Penaflor B, Walker M, Welander A, Gates D, Hatcher R, Menard J, Mueller D, McArdle G, Storrs J, Wan B, Gribov Y, Kwon M, Jhang H, Khayrutdinov R, Kavin A. DIII-D integrated plasma control tools applied to next generation tokamaks. Fusion Engineering and Design 2005. [DOI: 10.1016/j.fusengdes.2005.06.256] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shan Y, Hexige S, Guo Z, Wan B, Chen K, Chen X, Ma L, Huang C, Zhao S, Yu L. Cloning and characterization of the mouse Arht2 gene which encodes a putative atypical GTPase. Cytogenet Genome Res 2004; 106:91-7. [PMID: 15218247 DOI: 10.1159/000078568] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2003] [Accepted: 02/17/2004] [Indexed: 11/19/2022] Open
Abstract
ARHT is a new subgroup of the Rho family identified recently, which consists of two Rho-like genes, Arht1 and Arht2. ARHT may be involved in mitochondrial homeostasis and apoptosis. Constitutively active mutants of ARHT1 induced an aggregation of the mitochondrial network and resulted in an increased apoptotic rate of the cells. Here we report the molecular cloning and characterization of a novel mouse cDNA encoding a putative atypical GTPase protein, Arht2. Mouse Arht2 consists of 19 exons and has been mapped to mouse chromosome 17A3.3. Both human and mouse Arht2 genes are ubiquitously expressed in adult tissues. The results of RT-PCR experiments indicated that the Arht2 gene is expressed in all stages of mouse testis and reached the adult level of transcription at postnatal day 30. In situ hybridization revealed strong hybridization signals of Arht2 in residual bodies. In the mouse testis, Arht2 may be involved in the differentiation of testis and spermiogenesis. The molecular characterization of the mouse Arht2 gene may provide a clue for functional studies of the human ARHT genes.
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Affiliation(s)
- Y Shan
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Science, Fudan University, Shanghai, P.R. China
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36
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Cui W, Yu L, He H, Chu Y, Gao J, Wan B, Tang L, Zhao S. Cloning of human myeloid-associated differentiation marker (MYADM) gene whose expression was up-regulated in NB4 cells induced by all-trans retinoic acid. Mol Biol Rep 2003; 28:123-38. [PMID: 12075932 DOI: 10.1023/a:1015288412047] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
A full-length cDNA of 3192 bp isolated from human bone marrow cDNA library was predicted an ORF encoding 298 amino acids. The deduced protein, containing seven putative transmembrane segments and sharing 75.8% amino acid identity with mouse Myadm protein, was named as human MYADM. The results of Northern blot analysis showed that MYADM was ubiquitously expressed in 15 of 16 adult tissues tested, except thymus. To determine whether the novel human gene was involved in hematopoietic differentiation process as mouse Myadm did, we examined the mRNA expressive abundance of this gene between normal bone marrow cells and peripheral blood leukocytes, and detected the expression change in NB4 cells induced by all-trans retinoic acid at different induce time by the semi-quantitative RT-PCR. The results showed that the expression of the novel gene was not only significantly higher in peripheral blood leukocytes than in bone marrow cells, but also significantly up-regulated when the NB4 cells(derived from a patient with acute promyelocytic leukemia) were induced by all-trans retinoic acid (ATRA) for 48hr. It is suggested that human MYADM was also associated with the differentiation of hematopoietic cells or acute promyelocytic leukemia cells. In addition, MYADM was mapped to human chromosome 19q 13.33-q 13.4 by Radiation Hybrid mapping, and it consists of 3 exons and 2 introns and spans a 7.1-Kb genomic region.
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MESH Headings
- Amino Acid Sequence
- Antigens, Differentiation
- Base Sequence
- Blood Cells/metabolism
- Bone Marrow Cells/metabolism
- Cell Differentiation/drug effects
- Cell Differentiation/genetics
- Chromosome Mapping
- Chromosomes, Human, Pair 19
- Cloning, Molecular
- DNA, Complementary/genetics
- Humans
- Leukemia, Promyelocytic, Acute/pathology
- Molecular Sequence Data
- Myelin and Lymphocyte-Associated Proteolipid Proteins
- Proteins/analysis
- Proteins/drug effects
- Proteins/genetics
- RNA, Messenger/metabolism
- Sequence Homology, Nucleic Acid
- Tretinoin/pharmacology
- Tumor Cells, Cultured/cytology
- Tumor Cells, Cultured/drug effects
- Tumor Cells, Cultured/metabolism
- Up-Regulation/genetics
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Affiliation(s)
- W Cui
- Institute of Genetics, School of Life Sciences, Fudan University, Shanghai, PR China
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37
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Abstract
UNLABELLED In our established model of heterotopic tracheal transplantation, at day 28 following transplantation, obliteration of the lumen is observed, which is histologically similar to that seen in Obliterative Bronchiolitis (OB). Pirfenidone (Pir) is a novel anti-fibrotic agent that causes no immunosuppression, but does downregulate the production of TGF-beta and collagen in vitro. We hypothesized that when used in this in vivo model, that Pir may alter the observed luminal fibrosis and obliteration. METHODS The treatment groups were: CSA, Pir and CSA, Pir only (n=6 each). Luminal supernatants and tissue were obtained from these groups at day 28. H&E staining was completed, as well as MTS proliferation assays, and TGF-beta ELISA on the fluids. RESULTS The CSA-Pir combined treatment group was the least fibrogenic in vitro (p<0.001). The TGF-beta levels were elevated in all groups (range 203-372 pg/ml). The H&E staining revealed that the luminal obliteration was less organized in the combined CSA-Pir group. CONCLUSIONS Our study shows that the combination of CSA-Pir results in a less fibrogenic luminal fluid and a less dense fibrous luminal plug. Pir should be further studied in obliterative airways disease (OAD).
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Affiliation(s)
- A Dosanjh
- Stanford University, Stanford, CA, USA
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Li Z, Yu L, Zhang Y, Gao J, Zhang P, Wan B, Chen C, Zhao S. Identification of human, mouse and rat PPP1R14A, protein phosphatase-1 inhibitor subunit 14A, & mapping human PPP1R14A to chromosome 19q13.13-q13.2. Mol Biol Rep 2002; 28:91-101. [PMID: 11931393 DOI: 10.1023/a:1017998029053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Three novel cDNAs encoding putative protein phosphatase-1 inhibitory protein (PPP1R14A) were isolated from human, mouse and rat. The human, mouse and rat PPP1R14A proteins were all of 147 amino acids sharing about 90% sequence identity to porcine CPI17, an inhibitor of protein phosphatase-1 holoenzyme. The protein sequence 33RHARVTVK40, which is important for the inhibitory potency of porcine CPI17, was conserved in mammalian PPP1R14A. Northern blot analysis showed that human PPP1R14A was highly expressed as a 600 bp transcript in heart, prostate, testis, ovary, colon, small intestine and pancreas, lowly in brain, placenta, skeletal muscle and spleen and lung. The distribution of mouse and rat PPP1R14A was more specific and different from that of human PPP1R14A, abundant in lung, moderate/abundant in testis, moderate in brain and low in heart. In addition, we mapped human PPP1R14A to chromosome 19q13.13-q13.2 by radiation hybrid mapping, and determined that the human PPP1R14A gene spanned a 5.1-kb region and consisted of four exons and three introns.
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Affiliation(s)
- Z Li
- Institute of Genetics, School of Life Science, Fudan University, Shanghai, PR China
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39
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Su M, Lü X, Li H, Wan B, Liu J. [Study on apoptosis of human gastric adenocarcinoma cell SGC-7901 induced by aining in vitro and the cell cycle]. Zhong Yao Cai 2001; 24:876-9. [PMID: 11917845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
OBJECTIVE To study the inducing apoptosis effect of Aining on human gastric adenocarcinoma cell in vitro. METHODS Agarose gel electrophoresis (AGE) and flow cytometry (FMC) techniques were adopted to study the inducing apoptosis effect of Ainging on the human gastric adenocarcinoma cell. RESULTS The human gastric adenocarcinoma cell's DNA was digested into fragments which gave rise to a characteristic "DNA Ladder" on agarose gel electrophoresis, while the percentage of apoptotic cells was 43.5%. But the blank group had neither DNA ladder, nor apoptotic peak. Cell cycle analysis showed that the proliferation index was 33.7% after the human gastric adenocarcinoma cells treated with Aining, and there was no cell phase specialty. CONCLUSION Aining can induce human gastric adenocarcinoma cell apoptosis in vitro.
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Affiliation(s)
- M Su
- National Engineering Research Center for Mordernization of TCM, Zhuhai 519020
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Dosanjh A, Wan B, Ikonen T, Boeke K, Morris RE. Airway goblet cells and respiratory epithelial injury in an animal model of obliterative airways disease (OAD). Am J Transplant 2001; 1:321-4. [PMID: 12099375 DOI: 10.1034/j.1600-6143.2001.10406.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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: 01/25/2023]
Abstract
UNLABELLED Goblet cells are important in the maintenance of the epithelial cell population in the airway, defense against injury and storage and release of mucins, which can protect the surface epithelial layer. In our rat tracheal model of acute rejection, there is injury and loss of respiratory epithelium in allografts. This loss of epithelium is associated with obliteration of the airway lumen. In small bowel allografts, studies have shown that the loss of goblet cells is an important histologic feature of rejection. The aims of this study were: (i) to examine for the first time the close time-course of goblet cell proliferation in acute rejection; and (ii) to compare the isograft vs. allograft morphometric changes associated with epithelial damage. METHODS Heterotopically transplanted rat tracheas (n = 45) were harvested at days 3,5,7, 10 and 12. Hematoxylin & eosin (H & E), Alcian blue and PAS staining was completed. Computerized image analysis was used to assess epithelial coverage. The mean number of PAS-positive goblet cells counted at 40x/field was determined, and 10 fields were counted per tracheal section. RESULTS There was a significant decrease in the number of goblet cells in the allografts between days 5 and 12 (p < 0.006). In the isografts, there was a gradual increase from day 3 to 10 (p < 0.05), then a sharp fall from day 10 to 12 (p < 0.03). In isografts from day 7 to 10, the goblet cell number increased, while the percentage respiratory epithelium remained the same. The percentage respiratory epithelial coverage and the number of goblet cells showed a direct correlation in the allografts (r2 = 0.57). CONCLUSIONS Our study shows, for the first time, that goblet cell proliferation occurs in the epithelial repair phase in isografts, whereas in allografts the goblet cells are lost and do not recover.
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Affiliation(s)
- A Dosanjh
- Transplantation Immunology, Stanford University, CA, USA
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42
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Lu Y, Wan B, Chen X, Peng H, Liang K. [Effect of photoperiod and temperature on fertility alteration of short photoperiod-low temperature induced male sterile rice]. Ying Yong Sheng Tai Xue Bao 2001; 12:226-8. [PMID: 11757367] [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: 02/23/2023]
Abstract
Short photoperiod-low temperature induced male sterile rice is a new germplasm, whose fertility alteration characteristic is contrary to that of long photoperiod and high temperature induced male sterile rice. Compared with that of Yid1s sowed under natural conditions by stages, the fertility alteration of Yid1s was observed under simulated short photoperiod treatment. The results showed that the photoperiod-sensitive stage of Yid1s occurred from differentiation of rachis primordia (phase I) to secondary rachis-branch and spikelet primordia (phase III). The panicles induced by appropriate short daylight treatment at photoperiod-sensitive stage tended to be completely sterile under normal temperature, but the sterile effect was weakened under high temperature. The pollen fertility of Yid1s was reduced under high or low temperature. The temperature-sensitive stages of Yid1s based on the analysis of the effects of high and low temperature on fertility were basically identical, i.e., from pollen mother cell formation (phase V) to single nucleus (phase VII).
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Affiliation(s)
- Y Lu
- South China Agricultural University, Guangzhou 510642
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43
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Affiliation(s)
- A Dosanjh
- Transplant Immunology Laboratory, Stanford University, Stanford, California, USA
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44
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Zhong C, Chen M, Wan B. [Evaluation of methods of detection for prostate neoplasm]. Zhonghua Zhong Liu Za Zhi 2001; 23:64-6. [PMID: 11783074] [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: 02/23/2023]
Abstract
OBJECTIVE To evaluate the significance of serum prostate specific antigen (PSA), digital rectal examination (DRE), transrectal ultrasound (TRUS) and magnetic resonance imaging (MRI) as guide to perform prostate needle biopsy. METHODS One hundred forty-eight patients suspicious of prostate neoplasm were undergone transrectal ultrasound-guided prostate needle biopsy. The pathologic diagnosis was analyzed in association with the results of PSA, DRE, TRUS and MRI in various combinations. RESULTS The positive rate of biopsy was 43.9%. While abnormal DRE or PSA contributed in the detection of prostate cancer, serum PSA became more reliable when combined with DRE, TRUS or MRI, but the contribution of each of the three diagnostic procedures was not significantly different. The sensitivity of MRI was higher than that of DRE or TRUS, whereas TRUS was more specific than PSA or MRI. CONCLUSION RE and PSA can be used for preliminary screening of prostate cancer. When combined with TRUS and MRI, the positive rate of diagnosis is increased. So is the specificity of the diagnosis which helps avoid unnecessary needle biopsy.
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Affiliation(s)
- C Zhong
- Beijing Hospital, Beijing 100730, China
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45
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Lu Y, Wan B, Chen X, Peng H, Liang K. [Influence of genetic background of photoperiodic response on expression of short photoperiod sensitive male sterility in rice]. Ying Yong Sheng Tai Xue Bao 2000; 11:710-2. [PMID: 11767527] [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: 02/23/2023]
Abstract
The photoperiodic response of F1 and its parents was analyzed, and the photoperiodic response and short photoperiod sensitive male sterility of F2 progenies were studied in this paper. The results showed that the strong response was dominant over the weak response to photoperiod. The photoperiodic response of plants with short photoperiod sensitive male sterility in F2 was above medial degree(the rate of heading acceleration > 15%). Photoperiodic response showed a positive correlation with short photoperiod sensitive male sterility. The main sterility genes of Yid1s and Yid2s were allelism. It can be inferred that the short photoperiod sensitive male sterile gene might be expressed upon the presence of the photoperiodic response genes, and that the short photoperiod sensitive male sterility of plants with the same genes could differ in their reproductive expressions, not because of the changes of the genes, but the difference in genetic backgrounds of photoperiodic response.
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Affiliation(s)
- Y Lu
- South China Agricultural University, Guangzhou 510642
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46
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Dekker R, Chang L, Wan B, Daneman D, Verjee Z. Hemoglobin A1c comparison between Bayer DCA2000 and BIORAD Variant systems. Clin Biochem 2000. [DOI: 10.1016/s0009-9120(00)00131-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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47
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Verheye S, Markou CP, Salame MY, Wan B, King SB, Robinson KA, Chronos NA, Hanson SR. Reduced thrombus formation by hyaluronic acid coating of endovascular devices. Arterioscler Thromb Vasc Biol 2000; 20:1168-72. [PMID: 10764689 DOI: 10.1161/01.atv.20.4.1168] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Biocompatible stent coatings may alleviate problems of increased (sub)acute thrombosis after stent implantation. Hyaluronic acid (HA), a ubiquitous, nonsulfated glycosaminoglycan, inhibits platelet adhesion and aggregation and prolongs bleeding when administered systemically. However, the effects of immobilized HA for reducing stent platelet deposition in vivo are unknown. We therefore quantified the antithrombotic effects of coating stainless steel stents and tubes with HA using an established baboon thrombosis model under physiologically relevant blood flow conditions. HA-coated and uncoated (control) stents (3.5 mm in diameter, n=32) and stainless steel tubes (4.0 mm in diameter, n=18) were deployed into exteriorized arteriovenous shunts of conscious, nonanticoagulated baboons. Accumulation of (111)In-radiolabeled platelets was quantified by continuous gamma-camera imaging during a 2-hour blood exposure period. HA coating resulted in a significant reduction in platelet deposition in long (4 cm) tubes (0.24+/-0.15 x 10(9) versus 6.12+/-0.49 x 10(9) platelets; P<0.03), short (2 cm) stainless steel tubes (0.18+/-0.06 x 10(9) versus 3.03+/-0.56 x 10(9) platelets; P<0.008), and stents (0.82+/-0.20 x 10(9) versus 1.83+/-0. 23 x 10(9) platelets; P<0.02) compared with uncoated control devices. Thus, HA coating reduces platelet thrombus formation on stainless steel stents and tubes in primate thrombosis models. These results indicate that immobilized HA may represent an attractive strategy for improving the thromboresistance of endovascular devices.
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Affiliation(s)
- S Verheye
- Division of Molecular Medicine, Yerkes Regional Primate Research Center, Department of Medicine, Emory University School of Medicine, Atlanta, GA 30322, USA
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48
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Liu J, Shi L, Wan B, Li B. [Effects of chronic exposure to lead on long-term potentiation in hippocampal CA1 area of young rats in vivo]. Zhonghua Yu Fang Yi Xue Za Zhi 2000; 34:34-6. [PMID: 11860895] [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: 02/23/2023]
Abstract
OBJECTIVE To study the effects of chronic exposure to lead on learning and memory function in young rats, based on the plasticity of their synapse function. METHODS With method of extracellular glass microelectrode recording, effects of exposure to lead at different concentrations on long term potentiation (LTP) induction in hippocampal CA(1) area of young rats in vivo were observed. RESULTS Incidence of LTP and mean amplitude increase after application of high frequency stimulus decreased, as blood lead in rats reached (3.28 +/- 0.88) micromol/L, even causing long term depression. To the exposed rats, their mean increase ratio in their population spike amplitudes after high-frequency stimulation correlated inversely with their brain lead load. CONCLUSION Chronic lead exposure could damage in vivo LTP induction and maintenance in the CA(1) area in hippocampus of rats, and the severity of damage increased with the extent of exposure to lead.
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Affiliation(s)
- J Liu
- Department of Preventive Medicine, Guangdong Medical College, ZhanJiang, 524023, China
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Wan B, Dong M, Ma J, Jia J, Ma G, Xie W, Dong M. [Immunohistochemical study of safe resection margin in the surgical treatment of laryngeal carcinoma]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 1999; 13:394-6. [PMID: 12541383] [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 study safe resection margin of laryngectomy according to the level of protein of gene expression. METHOD Using citric-LSAB-immunochemical technique, the expressions of ras, c-myc and P53 were studied in different regions of larynx including 30 cases laryngeal carcinoma, border area, adjacent mucosa which was 0.5, 1.0, 1.5, 2.0 cm away from cancer and four normal laryngeal mucosa. RESULT The results showed that both single expression and co-expression of p21, p62 and p53 increased as tissue progressed in sequence from normal mucosa, 2.0, 1.5, 1.0, 0.5 cm distant mucosa adjacent to carcinoma, border area and carcinoma. A significant different expression in most of them can be seen at regions of 0.5 cm and 1.0 cm distant from the tumor (P < 0.05). CONCLUSION The tissue 0.5 cm adjacent to the tumor should be regarded as precancerous lesion. It is appropriate to regard 0.5 cm away from tumors as resection margins for surgical treatment of laryngeal carcinoma.
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Affiliation(s)
- B Wan
- Department of Otolaryngology, People's Hospital of Henan Province, Zhengzhou 450003
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Hu Y, Wan B, Song X, Xie W. [Neurilemmoma of the nasal cavity and paranasal sinuses (report of 12 cases)]. Lin Chuang Er Bi Yan Hou Ke Za Zhi 1999; 13:409-10. [PMID: 12541389] [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 further understand the neurilemmoma of nose. METHOD 12 cases of neurilemmomas of the nasal cavity and paranasal sinuses were treated successfully by operation, 2 cases of malignant change lesions were treated by extensive resection and radiation. RESULT 11 in 12 cases were followed up. 9 cases were cured and no any serious complications, 2 cases of malignant tumor were died. CONCLUSION Early stage diagnosis is important. CT scan should be made as essential examination, complete surgical resection is the choice of treatment for primary lesions; malignant change lesions should be treated by combined operation with radiation.
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Affiliation(s)
- Y Hu
- Department of Otolaryngology, People's Hospital of Henan Province, Zhengzhou 450003
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