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Zhou Z, Wang Y, Zhao F, Yao G, Yu H, Yu H, Bu L, Lu Z, Yan S. Radiation Induced Lung Injury in Rats after Pre-Oxygenation Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e279-e280. [PMID: 37785046 DOI: 10.1016/j.ijrobp.2023.06.1260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Deep inspiratory breath holding (DIBH) has been widely used during the radiotherapy of thoracic tumors. The main disadvantage of voluntary DIBH is the short duration of each breath hold. The hypocapnia induced by hyperoxia (oxygen concentration > 50%) pre-oxygenation (PreO2) combined with mechanical hyperventilation has been reported to prolong the duration of single breath hold, but its safety remains controversial, especially the sensitivity of lung tissue to radiation damage under hyperoxia exposure has not been elucidated. In this study, we aim to investigate the changes of radiation induced lung injury in rats after PreO2 radiation. MATERIALS/METHODS We evaluated the lung tissue of rats at different time points (48h, 2w, 4w, 8w, 12w) after thoracic radiation (15Gy single fraction to the right lung), and sequenced the transcriptome of lung tissue at 48 hours after irradiation. Rat cohorts (n = 7/group): 1. Control (Con); 2. Radiation group (RT); 3. Pre-oxygenation (oxygen concentration > 90%) for 8 hours before thoracic radiation (PreO2). RESULTS The inflammatory exudation emerged in the pulmonary interstitium at 48 hours, and reached the most serious alveolitis after four weeks of irradiation (the comparison of alveolitis scores in RT4w vs Con4w and PreO2(4w) vs Con4w, P<0.001) on hematoxylin-eosin staining. While the alveolitis scores in RT group and PreO2 group were not statistically different at each time point. Masson staining showed that the pulmonary fibrosis in the RT group and the PreO2 group reached an obvious pathological change at 12 weeks after irradiation, but the difference between the two groups was not significant. Transcriptome sequencing showed that the number of differential genes in PreO2 vs Con was 559 (302 up-regulated genes and 257 down-regulated genes). The GO enrichment analysis indicated that chromosome segregation was the most significant functional item with P value in the comparative analysis, and the KEGG enrichment analysis suggested that cell division was the most significant enrichment pathway of these differential genes. While there was a small quantity of differential genes in PreO2 vs RT group (3 up-regulated genes and 12 down-regulated genes). Pentose and glucuronate conversions were the most significant enrichment pathway of these differential genes. CONCLUSION This study demonstrated that PreO2 radiotherapy did not increase the severity of radiation induced lung injury in rats compared to conventional radiotherapy. Further study should be conducted to confirm these results and to investigate the regulatory mechanism of pneumonia caused by PreO2 radiotherapy.
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Affiliation(s)
- Z Zhou
- Department of Radiation Oncology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Y Wang
- Department of Radiation Oncology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - F Zhao
- Department of Radiation Oncology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China
| | - G Yao
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - H Yu
- The First Affiliated Hospital Zhejiang University School of Medicine, Hangzhou, China
| | - H Yu
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - L Bu
- Department of Radiation Oncology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Z Lu
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - S Yan
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Zhang Y, Ye X, Ge J, Guo D, Zheng D, Yu H, Chen Y, Yao G, Lu Z, Yuille A, Lu L, Jin D, Yan S. Deep Learning-Based Multi-Modality Segmentation of Primary Gross Tumor Volume in CT and MRI for Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2023; 117:e498. [PMID: 37785566 DOI: 10.1016/j.ijrobp.2023.06.1739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The delineation of primary gross tumor volume (GTV) of nasopharyngeal carcinoma (NPC) is an essential step for radiotherapy planning. In clinical practice, radiation oncologists manually delineate the GTV in planning CT with the help of diagnostic MRI. This is because NPC tumors are closely adjacent to many important anatomic structures, and CT and MRI provide complementary strength to accurately determine the tumor extension boundary. Manual delineation is time-consuming with the potential registration errors between MRI and CT decreasing the delineation accuracy. In this study, we propose a fully automated GTV segmentation method based on CT and MRI by first aligning MRI to CT, and then, segmenting the GTV using a multi-modality deep learning model. MATERIALS/METHODS We collected 104 nasopharyngeal carcinoma patients with both planning CT and diagnostic MRI scans (T1 & T2 phases). An experienced radiation oncologists manually delineated the GTV, which was further examined by another senior radiation oncologist. Then, a coarse to fine cross-modality registration from MRI to CT was conducted as follows: (1) A rigid transformation was performed on MRI to roughly align MRI to CT with similar anatomic position. (2) Then, the region of interest (RoI) on both CT and rigid-transformed MRI were cropped. (3) A leading cross-modality deformable registration algorithm, named DEEDS, was applied on the cropped MRI and CT RoIs to find an accurate local alignment. Next, using CT and registered MRI as the combined input, a multi-modality deep segmentation network based on nnUNet was trained to generate the GTV prediction. 20% patients were randomly selected as the unseen testing set to quantitatively evaluate the performance. RESULTS The quantitative NPC GTV segmentation performance is summarized in Table 1. The deep segmentation model using CT alone achieved reasonable high performance with 76.6% Dice score and 1.34mm average surface distance (ASD). When both CT and registered MRI were used, the segmentation model further improved the performance by 0.9% Dice score increase and 11% relative ASD error reduction, demonstrating the complementary strength of CT and MRI in determining NPC GTV. Notably, the achieved 77.5% Dice score and 1.19mm ASD by the multimodality model is among the top performing results reported in recent automatic NPC GTV segmentation using either CT or MRI modality. CONCLUSION We developed a fully automated multi-modal deep-learning model for NPC GTV segmentation. The developed model can segment the NPC GTV in high accuracy. With further optimization and validation, this automated model has potential to standardize the NPC GTV segmentation and significantly decrease the workload of radiation oncologists in clinical practice.
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Affiliation(s)
- Y Zhang
- Johns Hopkins University, Baltimore, MD
| | - X Ye
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - J Ge
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - D Guo
- Alibaba Group (US) Inc., New York, NY
| | - D Zheng
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - H Yu
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Y Chen
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - G Yao
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Z Lu
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - A Yuille
- Johns Hopkins University, Baltimore, MD
| | - L Lu
- Alibaba Group (US) Inc., New York, NY
| | - D Jin
- Alibaba Group (US) Inc., New York, NY
| | - S Yan
- Department of Radiation Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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Yao G, Zhu C, Qin T, Wang M, Sun Z, Tang R, Zhao C, Jiang H, Xu H. Oxidative Annulation of Aldehydes, 5‐Aminopyrazoles, and Nitriles: Synthesis and Applications of Pyrazolo[3,4‐
d
]Pyrimidines. Adv Synth Catal 2023. [DOI: 10.1002/adsc.202300189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- G. Yao
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - C. Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology 510640 Guangzhou People's Republic of China
| | - T. Qin
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - M. Wang
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - Z. Sun
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - R.‐Y. Tang
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - C. Zhao
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
| | - H. Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province School of Chemistry and Chemical Engineering South China University of Technology 510640 Guangzhou People's Republic of China
| | - H. Xu
- Key Laboratory of Natural Pesticide and Chemical Biology Ministry of Education South China Agricultural University 510642 Guangzhou People's Republic of China
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Hou S, Wang X, Yu Y, Ji H, Dong X, Li J, Li H, He H, Li Z, Yang Z, Chen W, Yao G, Zhang Y, Zhang J, Bi M, Niu S, Zhao G, Zhu R, Liu G, Jia Y, Gao Y. Invasive fungal infection is associated with antibiotic exposure in preterm infants: a multi-centre prospective case-control study. J Hosp Infect 2023; 134:43-49. [PMID: 36646139 DOI: 10.1016/j.jhin.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/31/2022] [Accepted: 01/04/2023] [Indexed: 01/15/2023]
Abstract
BACKGROUND Previous antibiotic exposure is an important risk factor for invasive fungal infection (IFI). Antibiotic overexposure is common in lower-income countries; however, multi-centre studies concerning IFI in relation to antibiotic exposure are scarce. AIM This prospective, multi-centre matched case-control study explored the correlation of IFI and antibiotic exposure in very preterm infants or very-low-birthweight infants admitted to 23 tertiary hospitals in China between 2018 and 2021. METHODS Using a 1:2 matched design for gestational age, birth weight and early-onset sepsis (yes/no), the risk factors between infants diagnosed with IFI and infection-free controls were compared. The antibiotic use rate (AUR) was calculated using calendar days of antibiotic therapy in the 4 weeks preceding IFI onset divided by onset day of IFI. FINDINGS In total, 6368 infants were included in the study, of which 90 (1.4%) were diagnosed with IFI. Median AUR, length of antibiotic therapy (LOT) and days of antibiotic therapy (DOT) within the 4 weeks preceding IFI onset were 0.90, 18 days and 30 days, respectively. Multi-variate analysis showed that a 10% increase in AUR, each additional day of DOT and LOT, and each additional day of third-generation cephalosporins and carbapenems were notably associated with IFI. CONCLUSION Prolonged antibiotic therapy is common before the onset of IFI, and is an important risk factor, especially the use of third-generation cephalosporins and carbapenems. Antibiotic stewardship should be urgently developed and promoted for preterm infants in order to reduce IFI in lower-income countries such as China.
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Affiliation(s)
- S Hou
- Department of Paediatrics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - X Wang
- Department of Paediatrics, Yantai Yuhuangding Hospital, Yantai, Shandong, China
| | - Y Yu
- Department of Neonatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China; Department of Neonatology, Shandong Provincial Hospital, Shandong University, Jinan, China.
| | - H Ji
- Department of Neonatology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China; Department of Neonatology, Shandong Provincial Hospital, Shandong University, Jinan, China
| | - X Dong
- Department of Neonatology, Shandong Provincial Maternal and Child Health Hospital, Jinan, Shandong, China
| | - J Li
- Department of Neonatology, The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - H Li
- Department of Neonatology, Hebei PetroChina Central Hospital, Langfang, China
| | - H He
- Department of Neonatology, Baogang Third Hospital of Hongci Group, Baotou, Inner Mongolia, China
| | - Z Li
- Department of Neonatology, W.F. Maternal and Child Health Hospital, Weifang, China
| | - Z Yang
- Department of Neonatology, Taian Maternal and Child Health Care Hospital, Taian, Shandong, China
| | - W Chen
- Department of Neonatology, People's Hospital of Rizhao, Rizhao, China
| | - G Yao
- Department of Neonatology, The Affiliated Taian City Central Hospital of Qingdao University, Taian, Shandong, China
| | - Y Zhang
- Department of Neonatology, Affiliated Hospital of Weifang Medical University, Weifang, China
| | - J Zhang
- Department of Neonatology, Qilu Hospital of Shandong University, Jinan, China
| | - M Bi
- Department of Neonatology, Jinan Central Hospital, Jinan, China
| | - S Niu
- Department of Neonatology, Zibo Maternal and Child Health Hospital, Zibo, China
| | - G Zhao
- Department of Neonatology, Binzhou Medical University Hospital, Binzhou, China
| | - R Zhu
- Department of Neonatology, Zibo Municipal Hospital, Zibo, China
| | - G Liu
- Department of Neonatology, Yidu Central Hospital of Weifang, Weifang, China
| | - Y Jia
- Department of Neonatology, Shanxi Province Shangluo Central Hospital, Shanluo, China
| | - Y Gao
- Department of Neonatology, Qilu Hospital of Shandong University Dezhou Hospital, Shanluo, China
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Yao G, Fan H, Wang R, Zhang Y, Du C, Chen B, Lin Z, Zhang T, Wu Z. 15P Prediction for pCR after neoadjuvant immunotherapy combined with chemotherapy using single-cell RNA sequencing in patients with locally advanced esophageal squamous cell carcinoma (escc): A single-arm phase II clinical trial. Immuno-Oncology and Technology 2022. [DOI: 10.1016/j.iotech.2022.100120] [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: 12/13/2022]
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Chen Z, Chen L, Sun Y, Li N, Chen R, Ma Y, Song W, Shi H, Xia L, Yao G. Association of differential meat quality traits with gut microbiota
in Angus cattle and Xinjiang Brown cattle. J Anim Feed Sci 2022. [DOI: 10.22358/jafs/153077/2022] [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: 12/05/2022]
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Liu Y, Wang M, Hu X, Wang L, Chen H, Li W, Feng Y, Zhang L, Yao G, Shi Y. EP16.02-017 Predictive Value of Peripheral Blood Immune Cell Profiling in EGFR-T790M Mutant Lung Adenocarcinoma. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.1048] [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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Song A, Qiu Y, Yin X, Xiong J, Yao G, Zhang C. POS-396 RHODOJAPONIN VI AMELIORATES PODOCYTE INJURY BY REGULATING MDM2/NOTCH1 PATHWAY IN RAT EXPERIMENTAL MEMBRANOUS NEPHROPATHY. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.418] [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: 10/19/2022] Open
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Ping K, Lei M, Gou Y, Tao Z, Yao G, Hu C, Tao Q, Zou Z, Wang D, Li S, Huang Y. Epidemiologic Characteristics of COVID-19 in Guizhou Province, China. J Infect Dev Ctries 2021; 15:389-397. [PMID: 33839714 DOI: 10.3855/jidc.12818] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 02/02/2021] [Indexed: 10/31/2022] Open
Abstract
INTRODUCTION At the end of 2019, the COVID-19 broke out, and spread to Guizhou province in January of 2020. METHODOLOGY To acquire the epidemiologic characteristics of COVID-19 in Guizhou province, we collected data from 169 laboratory-confirmed COVID-19 related cases. We described the demographic characteristics of the cases and estimated the incubation period, serial interval and the effective reproduction number. We also presented two representative case studies in Guizhou province: Case Study 1 was an example of the asymptomatic carrier; while Case Study 2 was an example of a large and complex infection chain that involved four different regions, spanning three provinces and eight families. RESULTS Two peaks in the incidence distribution associated with COVID-19 in Guizhou province were related to the 6.04 days (95% CI: 5.00 - 7.10) of incubation period and 6.14±2.21 days of serial interval. We also discussed the effectiveness of the control measures based on the instantaneous effective reproduction number that was a constantly declining curve. CONCLUSIONS As of February 2, 2020, the estimated effective reproduction number was below 1, and no new cases were reported since February 26. These showed that Guizhou Province had achieved significant progress in preventing the spread of the epidemic. The medical isolation of close contacts was consequential. Meanwhile, the asymptomatic carriers and the super-spreaders must be isolated in time, who would cause a widespread infection.
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Affiliation(s)
- Kaike Ping
- Guizhou Center for Disease Control and Prevention, Guizhou, China.
| | - Mingyu Lei
- Guizhou Center for Disease Control and Prevention, Guizhou, China
| | - Yun Gou
- Guizhou Center for Disease Control and Prevention, Guizhou, China
| | - Zhongfa Tao
- Guizhou Center for Disease Control and Prevention, Guizhou, China
| | - Guanghai Yao
- Guizhou Center for Disease Control and Prevention, Guizhou, China
| | - Can Hu
- Guizhou Center for Disease Control and Prevention, Guizhou, China
| | - Qin Tao
- Guizhou Center for Disease Control and Prevention, Guizhou, China
| | - Zhiting Zou
- Guizhou Center for Disease Control and Prevention, Guizhou, China
| | - Dingming Wang
- Guizhou Center for Disease Control and Prevention, Guizhou, China
| | - Shijun Li
- Guizhou Center for Disease Control and Prevention, Guizhou, China
| | - Yan Huang
- Guizhou Center for Disease Control and Prevention, Guizhou, China
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10
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Fang W, Hu J, Huang Y, Xu C, Wang W, Yao G, Shao Y, Zhang L. P76.90 Molecular Characteristics of BRAF Mutations in EGFR Mutant NSCLC after Progression on EGFR TKIs and Response to Combination Targeted Therapy. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1147] [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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11
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Wang Y, Wen C, Ye J, Huang H, Zhang Y, Yuan H, Yao G, Yu M. [Cytotoxic effect of photodynamic liposome gel combined with trastuzumab on drugresistant breast cancer cells in vitro]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:164-172. [PMID: 33624588 DOI: 10.12122/j.issn.1673-4254.2021.02.02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To evaluate the cytotoxic effect of photodynamic therapy (PDT) combined with targeted therapy using cross-linked liposomes and gels (Ce6-PC-Tmab@A-Gel) loaded with photosensitizer Chlorin (Ce6) and the tumor-targeting drug Trastuzumab (Tmab) in drug-resistant HER2+ breast cancer cells. OBJECTIVE Ce6-PC-Tmab liposomes were prepared using the thin-film hydration method. The general properties, encapsulation efficiency and near-infrared responsivity of the nanoparticles were evaluated. Ce6-PC-Tmab@A-Gel with a shear response was prepared by freeze drying and stirring crosslinking, and its microstructure was observed with scanning electron microscopy (SEM) and the shear response evaluated using a rheometer. The inhibitory effect of Ce6-PC-Tmab@A-Gel in drug-resistant HER2+ breast cancer SK-BR-3 cells was assessed with cytotoxicity assay (MTT assay) combined with near-infrared light. OBJECTIVE The particle size of Ce6-PC-Tmab was 239.7±9.7 nm and the potential was -2.03±0.09 mV. The entrapment efficiency of Tmab by Ce6-PC-Tmab liposomes was (40.22± 0.73)%. The prepared Ce6-PC-Tmab@A-Gel had a good shear response with excellent drug release characteristics under nearinfrared light, and increased intensity and duration of near-infrared light exposure enhanced Tmab release from the gel. Ce6-PC-Tmab@A-Gel was stable at room temperature and in a simulated tumor microenvironment (pH 6.25). Cytotoxicity assay (MTT) showed that Ce6-PC-Tmab@A-Gel combined with near-infrared light resulted in a survival rate of (31.37±1.73)% in SKBR-3 cells, much lower than that in the control group and other treatment groups (P < 0.01); the combined treatment also had a high efficiency of ROS production, and ROS release reached (22.36 ± 0.11)% after 2 min of near-infrared light exposure. OBJECTIVE The prepared Ce6-PC-Tmab@A-Gel has good near-infrared light response release characteristics to ensure effective targeted therapy with Tmab. The injectable gel system potentially allows long-term local drug release in the tumor to improve the treatment efficacy against drug-resistant breast cancer.
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Affiliation(s)
- Y Wang
- Department of Mammary Gland, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523000, China
| | - C Wen
- Department of Mammary Gland, Nanfang Hospital, Guangzhou 510515, China
| | - J Ye
- Department of Mammary Gland, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523000, China
| | - H Huang
- Department of Mammary Gland, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523000, China
| | - Y Zhang
- Department of Mammary Gland, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523000, China
| | - H Yuan
- Department of Mammary Gland, Dongguan People's Hospital Affiliated to Southern Medical University, Dongguan 523000, China
| | - G Yao
- Department of Mammary Gland, Nanfang Hospital, Guangzhou 510515, China
| | - M Yu
- School of Pharmacy, Southern Medical University, Guangzhou 510515, China
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Tang J, Xu XY, Luo BL, Yang L, Zhang XL, Sun YD, Hou ZQ, Yao G. Potential role of lnc-PTGS2 in fibrosis progression after laminectomy via targeting EGR1. J BIOL REG HOMEOS AG 2021; 34:2237-2244. [PMID: 33198452 DOI: 10.23812/20-281-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J Tang
- Department of Plastic and Burn Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China.,Nanjing Shuangjian Medical Technology Co., Ltd., Nanjing, China
| | - X Y Xu
- Department of Ophthalmology, Affiliated Hospital with Nanjing University of Chinese Medicine, Nanjing, China
| | - B L Luo
- Department of Plastic and Burn Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - L Yang
- Department of Orthopedics, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - X L Zhang
- Department of Plastic and Burn Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Y D Sun
- Department of Plastic and Burn Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - Z Q Hou
- Department of Plastic and Burn Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
| | - G Yao
- Department of Plastic and Burn Surgery, The First Affiliated Hospital with Nanjing Medical University, Nanjing, China
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Mohammad A, Azinfar L, Johannesen E, Yao G, Hunter M. Stromal imaging in precancerous cervical lesions. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.312] [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: 10/23/2022]
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14
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Ma Y, Bian C, Song D, Yao G, Nie R. 3,4-Methylenedioxymethamphetamine causes retinal damage in C57BL/6J mice. Hum Exp Toxicol 2020; 39:1556-1564. [PMID: 32552070 DOI: 10.1177/0960327120930253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
3,4-Methylenedioxymethamphetamine (MDMA) is a powerfully addictive psychostimulant with pronounced effects on the central nervous system, but the precise mechanism of MDMA-induced toxicity remains unclear, specifically on the retina. This study was performed to investigate the effects of MDMA treatment on the retina and explore the underlying mechanism. C57BL/6J mice were randomly divided into control and MDMA groups. Mice were treated with MDMA at progressively increasing doses (1-6 mg/kg) intraperitoneally 4 times per day. Electroretinography was used to test the retinal function. Pathological changes of the retina were examined by toluidine blue staining and terminal deoxynucleotidyl transferase deoxyuridine triphosphate nick end labeling assay. Enzyme-linked immunosorbent assays were used to measure the levels of cytokines in the retina. Real-time polymerase chain reaction and Western blot were used to measure gene and protein expression in the retina, respectively. Our study showed that MDMA treatment impaired retinal function and decreased retinal thickness. MDMA treatment also increased transforming growth factor β as well as inflammatory factors in the retina. Moreover, MDMA treatment increased protein expression of matrix metalloproteinases (MMPs) and decreased tight junction protein expression in the retina. Our study indicated that treatment of MDMA caused retinal damage in C57BL/6J mice, associated with an increase of MMPs and a decrease of tight junction proteins.
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Affiliation(s)
- Y Ma
- Department of Ophthalmology, Tai'an City Central Hospital, Tai'an, People's Republic of China
| | - C Bian
- Department of Ophthalmology, Tai'an City Central Hospital, Tai'an, People's Republic of China.,Department of Ophthalmology, The First People's Hospital of Tai'an, Tai'an, People's Republic of China
| | - D Song
- Department of Ophthalmology, Tai'an City Central Hospital, Tai'an, People's Republic of China
| | - G Yao
- Department of Ophthalmology, The First People's Hospital of Tai'an, Tai'an, People's Republic of China
| | - R Nie
- Department of Geriatrics III, Tai'an City Central Hospital, Tai'an, People's Republic of China
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Yao G, Wang S, Sun L. THU0226 MESENCHYMAL STEM CELL TRANSPLANTATION AMELIORATES EXPERIMENTAL SJÖGREN’S SYNDROME BY DOWNREGUALTING MDSCS VIA COX2/PGE2 PATHWAY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.1391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Although mesenchymal stem cells (MSCs) transplantation have been demonstrated to be an effective therapeutic approach to treat experimental Sjögren’s syndrome (ESS)1, the specific underlying mechanisms remain to be elucidated. Myeloid-derived suppressor cells (MDSCs) were significantly increased with decreased suppressive capacity during disease development in ESS2-3. However, the therapeutic effects and mechanisms by which MSCs regulating MDSCs in SS still remain unknown.Objectives:Here we aim to explore whether regulation of MDSCs was responsible for the beneficial effects of MSC transplantation on SS.Methods:The MSCs were infused intonon-obese diabetic (NOD) mice via the tail vein. The histological features of submandibular glands, lung, saliva flow rate were evaluated. The number and immune-suppressive activity of MDSCs, the subsets of MDSCs, polymorphonuclear MDSCs (PMN-MDSCs) and monocytic-MDSCs (M-MDSCs) in NOD mice were determined. The bone marrow cells under MDSCs differentiation conditions were co-cultured with or without MSCs. The COX2 inhibitor NS-398, anti-TGF-β1, or anti-IFN-β antibodies were added to coculture medium of MSCs and MDSCs induced from bone marrow cells respectively.Results:We found that MDSCs in bone marrow and peripheral blood increased in ESS mice. MSC transplantation ameliorated SS-like syndrome and down-regulated the percentages of MDSCs, PMN-MDSCs and M-MDSCs and promoted their suppressive ability in ESS mice significantly (Figure 1). In vitro, MSCs could down-regulate the differentiation and up-regulate the suppressive ability of MDSCs. Mechanistically, MSCs inhibited the differentiation of MDSCs and PMN-MDSCs via secreting prostaglandin E2, and inhibited the differentiation of M-MDSCs by secreting interferon-β (Figure 2).Figure 1.MSCs ameliorated SS symptoms and decreased MDSCs in NOD mice.Figure 2.MSCs inhibited the differentiation of PMN-MDSCs and M-MDSCs by COX2/PGE2 and IFN-β respectively.Conclusion:Our findings suggested that MSCs alleviated SS-like symptoms by suppressing the aberrant accumulation and improving the suppressive function of MDSCs in ESS mice via COX2/PGE2 pathway.References:[1]Shi B, Qi J, Yao G, et al. Mesenchymal stem cell transplantation ameliorates Sjögren’s syndrome via suppressing IL-12 production by dendritic cells. Stem Cell Res Ther, 2018; 9(1):308.[2]Qi J, Li D, Shi G, et al. Myeloid-derived suppressor cells exacerbates Sjögren’s syndrome by inhibiting Th2 immune responses. Mol Immunol, 2018; 101:251-258.[3]Tian J, Rui K, Hong Y, et al. Increased GITRL impairs the function of myeloid-derived suppressor cells and exacerbates primary Sjögren’s syndrome. J Immunol, 2019; 202(6):1693-1703.Disclosure of Interests:None declared
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Wang W, Wen X, Duan W, Wang X, Chen Y, Dong J, Yang Z, Fang J, Zhou Z, Yao G, Fang Y, Huang Y. DR10601, a novel recombinant long-acting dual glucagon-like peptide-1 and glucagon receptor agonist for the treatment of obesity and type 2 diabetes mellitus. J Endocrinol Invest 2020; 43:653-662. [PMID: 31786794 DOI: 10.1007/s40618-019-01153-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 11/21/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE Both glucagon-like peptide-1 (GLP-1) and glucagon (GCG) belong to the incretin family. This study aimed to investigate the pharmacokinetics and pharmacodynamics of DR10601, a fully recombinant hybrid peptide with dual GLP-1/GCG receptor agonistic activity. METHODS The agonistic ability of DR10601 was indirectly assessed by inducing cAMP accumulation in Chinese hamster ovary cells transfected with GLP-1R or GCGR in vitro. Following s.c. administration, the plasma pharmacokinetics of DR10601 were analysed in male Sprague-Dawley rats. The antiobesity effects and improved glycaemic control of DR10601 in vivo were evaluated by administering DR10601 to high-fat DIO mice and ICR mice as a single dose or repeated s.c. doses once every 4 days for 24 days. RESULTS DR10601 exhibits dual agonistic activity on GLP-1 and glucagon receptors. The plasma half-life of DR10601 in Sprague-Dawley rats following s.c. administration was 51.9 ± 12.2 h. In an IPGTT, a single s.c. dose of DR10601 (30 nmol/kg) produced similar glycaemic control effects and a longer duration of action compared to dulaglutide (10 nmol/kg). Compared with that achieved with liraglutide (40 nmol/kg) s.c. administered daily, DR10601 administered s.c. once every 4 days at 90 nmol/kg exerted a nearly equivalent effect on food intake and significantly reduced the body weights of high-fat DIO mice at 24 days. CONCLUSIONS Repeated administration of DR1060 provides potent and sustained glycemic control and body weight loss effect in high-fat DIO mice. DR10601 is a promising long-acting agent deserving further investigation for the treatment of type 2 diabetes and obesity.
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Affiliation(s)
- W Wang
- Department of Pharmacy, College of Life Sciences, China Jiliang University, Hangzhou, Zhejiang, China
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - X Wen
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - W Duan
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - X Wang
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - Y Chen
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - J Dong
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - Z Yang
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - J Fang
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - Z Zhou
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - G Yao
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - Y Fang
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China
| | - Y Huang
- Zhejiang Doer Biologics Corporation, No. 452 Avenue 6, Hangzhou Economic and Technological Development Zone, Hangzhou, 310018, Zhejiang, China.
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Li S, Ma Q, Chen H, Liu Y, Yao G, Tang G, Wang D. Epidemiological Investigation and Etiological Analysis of a Cutaneous Anthrax Epidemic Caused by Butchering Sick Cattle in Guizhou, China. Front Public Health 2020; 8:65. [PMID: 32269982 PMCID: PMC7109284 DOI: 10.3389/fpubh.2020.00065] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 02/20/2020] [Indexed: 11/13/2022] Open
Abstract
A suspected human cutaneous anthrax epidemic caused by butchering sick cattle occurred in Zhijin County of Guizhou Province, Southwest of China, in 2016. Epidemiological investigation and etiological analysis were performed to provide a scientific basis for the source tracking of the epidemic. The epidemic was epidemiologically investigated, and skin blister samples collected from patients and soil samples collected from the butchering spots were used for Bacillus anthracis isolation. The suspicious B. anthracis isolates were identified using conventional methods and PCR, followed by genotyping using multiple-locus variable-number tandem repeats (VNTRs) analysis (MLVA-15) and canonical single-nucleotide polymorphism (canSNP). The genetic relationship of epidemic strains and isolates collected from other regions was analyzed. Epidemiological investigation results showed that the patients may be infected by B. anthracis during butchering sick cattle. Two suspected B. anthracis strains were isolated from blood samples and blister fluids, respectively. Conventional methods identified the two suspected isolates as B. anthracis, while PCR results showed that anti-protective antigen (PA) and capsule (CAP) gene were positive in the two isolates. MLVA-15 showed that the MLVA profiles of the two isolates were 9-20-12-53-16-2-8-8-8-4-4-4-4-10-4, which is different from the MLVA profiles of representative strains from other regions. CanSNP analysis showed that the two strains belonged to cluster A.Br.001/002. Clustering analysis and minimum spanning tree (MST) demonstrated that the two isolates were clustered with strains previously isolated from Guizhou Province. The results indicated that B. anthracis was the pathogen for this epidemic, and the patients were infected during butchering the sick. The genetic characteristics and the relationship of the B. anthracis isolates to strains from other regions indicated that the epidemic was a local occurrence.
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Affiliation(s)
- Shijun Li
- Laboratory of Bacterial Disease, Experiment Center, Guizhou Provincial Center for Disease Control and Prevention, Guiyang, China
| | - Qing Ma
- Laboratory of Bacterial Disease, Experiment Center, Guizhou Provincial Center for Disease Control and Prevention, Guiyang, China
| | - Hong Chen
- Guiyang Centre for Animal Disease Control and Prevention, Guiyang, China
| | - Ying Liu
- Laboratory of Bacterial Disease, Experiment Center, Guizhou Provincial Center for Disease Control and Prevention, Guiyang, China
| | - Guanghai Yao
- Guizhou Provincial Center for Disease Control and Prevention, Institute for Communicable Disease Control and Prevention, Guiyang, China
| | - Guangpeng Tang
- Guizhou Provincial Center for Disease Control and Prevention, Institute for Communicable Disease Control and Prevention, Guiyang, China
| | - Dingming Wang
- Guizhou Provincial Center for Disease Control and Prevention, Institute for Communicable Disease Control and Prevention, Guiyang, China
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He H, Yao G, Ma Y, Feng N, Zhou S, Huang Q. Experimental and Theoretical Study of the Raman Spectra of Ganoderic Acid T. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619090051] [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: 11/23/2022]
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Wang YZ, Li J, Zhang S, Huang B, Yao G, Zhang J. An RNA Scoring Function for Tertiary Structure Prediction Based on Multi-Layer Neural Networks. Mol Biol 2019. [DOI: 10.1134/s0026893319010175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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20
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Wang YZ, Li J, Zhang S, Huang B, Yao G, Zhang J. [An RNA Scoring Function for Tertiary Structure Prediction Based on Multi-layer Neural Networks]. Mol Biol (Mosk) 2019; 53:132-141. [PMID: 30895961 DOI: 10.1134/s0026898419010178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/17/2018] [Indexed: 06/09/2023]
Abstract
A good scoring function is necessary for ab inito prediction of RNA tertiary structures. In this study, we explored the power of a machine learning based approach as a scoring function. Compared with the traditional scoring functions, the present approach is more flexible in incorporating different kinds of features; it is also free of the difficult problem of choosing the reference state. Two multi-layer neural networks were constructed and trained. They took RNA a structural candidate as input and then output its likeness score that evaluates the likeness of the candidate to the native structure. The first network was working at the coarse-grained level of RNA structures, while the second at the all-atom level. We also built an RNA database and split it into the training, validation, and testing sets, containing 322, 70, and 70 RNAs, respectively. Each RNA was accompanied with 300 decoys generated by high-temperature molecular dynamics simulations. The networks were trained on the training set and then optimized with an early-stop strategy, based on the loss of the validation set. We then tested the performance of the networks on the testing set. The results were found to be consistently better than a recent knowledge-based all-atom potential.
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Affiliation(s)
- Y Z Wang
- School of Physics, Collaborative Innovation Center of Advanced Micro structures, and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093 China
| | - J Li
- School of Physics, Collaborative Innovation Center of Advanced Micro structures, and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093 China
| | - S Zhang
- School of Physics, Collaborative Innovation Center of Advanced Micro structures, and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093 China
| | - B Huang
- School of Physics, Collaborative Innovation Center of Advanced Micro structures, and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093 China
| | - G Yao
- School of Physics, Collaborative Innovation Center of Advanced Micro structures, and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093 China
| | - J Zhang
- School of Physics, Collaborative Innovation Center of Advanced Micro structures, and National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, 210093 China
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Kong Y, Yao G, He J, Yang G, Kong D, Sun Y. lncRNA LNC-GULP1-2:1 is involved in human granulosa cell proliferation by regulating COL3A1 gene. Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.900] [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: 10/28/2022]
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Valiev D, Stepanov S, Polisadova E, Yao G. Scintillation properties of phosphate-borate-fluoride glass doped with Tb3+/Pr3+. Radiat Phys Chem Oxf Engl 1993 2018. [DOI: 10.1016/j.radphyschem.2018.02.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [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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Li S, Ma Q, Chen H, Wang D, Liu Y, Wei X, You L, Yao G, Tian K, Tang G. Correction to: Genetic characterization of Bacillus anthracis in Guizhou Province, Southwest of China. BMC Microbiol 2018; 18:31. [PMID: 29649970 PMCID: PMC5897941 DOI: 10.1186/s12866-018-1172-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Shijun Li
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, Guiyang, People's Republic of China.
| | - Qing Ma
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, Guiyang, People's Republic of China
| | - Hong Chen
- Guiyang Centre for Animal Disease Control and Prevention, Guiyang, China
| | - Dingming Wang
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, Guiyang, People's Republic of China
| | - Ying Liu
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, Guiyang, People's Republic of China
| | - Xiaoyu Wei
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, Guiyang, People's Republic of China
| | - Lv You
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, Guiyang, People's Republic of China
| | - Guanghai Yao
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, Guiyang, People's Republic of China
| | - Kecheng Tian
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, Guiyang, People's Republic of China
| | - Guangpeng Tang
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, Guiyang, People's Republic of China
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Wang Y, Zhang K, Duan D, Yao G. Heart structural remodeling in a mouse model of Duchenne cardiomyopathy revealed using optical polarization tractography [Invited]. Biomed Opt Express 2017; 8:1271-1276. [PMID: 28663827 PMCID: PMC5480542 DOI: 10.1364/boe.8.001271] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 01/27/2017] [Accepted: 01/28/2017] [Indexed: 05/10/2023]
Abstract
We investigated the heart structural remodeling in the mdx4cv mouse model of Duchenne cardiomyopathy using optical polarization tractography. Whole heart tractography was obtained in freshly dissected hearts from six mdx4cv mice. Six hearts from C57BL/6J mice were also imaged as the normal control. The mdx4cv hearts were significantly larger than the control hearts and had significantly higher between-subject variations in myofiber organization. While both strains showed classic cross-helical fiber organization in the left ventricle, the rate of the myocardial fiber orientation change across the heart wall was significantly altered in the right ventricle of the mdx4cv heart.
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Affiliation(s)
- Y. Wang
- Department of Bioengineering, University of Missouri, Columbia, MO 65211, USA
| | - K. Zhang
- Department of Molecular Microbiology & Immunology, University of Missouri, Columbia, MO 65211, USA
| | - D. Duan
- Department of Bioengineering, University of Missouri, Columbia, MO 65211, USA
- Department of Molecular Microbiology & Immunology, University of Missouri, Columbia, MO 65211, USA
| | - G. Yao
- Department of Bioengineering, University of Missouri, Columbia, MO 65211, USA
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Wang Y, Ravanfar M, Zhang K, Duan D, Yao G. Mapping 3D fiber orientation in tissue using dual-angle optical polarization tractography. Biomed Opt Express 2016; 7:3855-3870. [PMID: 27867698 PMCID: PMC5102555 DOI: 10.1364/boe.7.003855] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 08/28/2016] [Accepted: 08/29/2016] [Indexed: 05/07/2023]
Abstract
Optical polarization tractography (OPT) has recently been applied to map fiber organization in the heart, skeletal muscle, and arterial vessel wall with high resolution. The fiber orientation measured in OPT represents the 2D projected fiber angle in a plane that is perpendicular to the incident light. We report here a dual-angle extension of the OPT technology to measure the actual 3D fiber orientation in tissue. This method was first verified by imaging the murine extensor digitorum muscle placed at various known orientations in space. The accuracy of the method was further studied by analyzing the 3D fiber orientation of the mouse tibialis anterior muscle. Finally we showed that dual-angle OPT successfully revealed the unique 3D "arcade" fiber structure in the bovine articular cartilage.
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Affiliation(s)
- Y. Wang
- Department of Bioengineering, University of Missouri, Columbia, MO 65211, USA
| | - M. Ravanfar
- Department of Bioengineering, University of Missouri, Columbia, MO 65211, USA
| | - K. Zhang
- Department of Molecular Microbiology & Immunology, University of Missouri, Columbia, MO 65211, USA
| | - D. Duan
- Department of Bioengineering, University of Missouri, Columbia, MO 65211, USA
- Department of Molecular Microbiology & Immunology, University of Missouri, Columbia, MO 65211, USA
| | - G. Yao
- Department of Bioengineering, University of Missouri, Columbia, MO 65211, USA
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Sun D, Yao G, Wu L, Wang J, Zhao Z, Zhai J. The effect of metformin on pregnancy outcome, endometrial receptivity & miRNAs in endometrium of patients with PCOS undergoing IVF/ICSI. Fertil Steril 2016. [DOI: 10.1016/j.fertnstert.2016.07.749] [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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Liu C, Zhang H, Yao G, Chen W, Sun L. OP0185 Characteristics of Primary Sjögren's Syndrome Patients with IGG4-Positive Plasma Cells in Labial Salivary Glands. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2600] [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: 11/04/2022]
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Shi B, Qi J, Feng R, Zhang Z, Chen W, Li W, Tang X, Yao G, Sun L. THU0279 Mscs Alleviate Clinical and Experimental Sjogren's Syndrome by Inhibiting IL-12 Production of APCS. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2371] [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: 11/03/2022]
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Qi J, Shi B, Zhang Z, Feng R, Chen W, Yao G, Hou Y, Sun L. OP0166 Il-27 Participates in Sjogren's Syndrome by Regulating Lymphocyte Subsets. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2590] [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: 11/04/2022]
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Shi B, Qi J, Feng R, Zhang Z, Chen W, Li W, Tang X, Yao G, Sun L. THU0280 IL-12 Exacerbates Sjogren's Syndrome through Inducing Lymphocyte Infiltrations into Salivary Glands and Imbalance of Lymphocyte Subsets. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Zhang Z, Niu L, Tang X, Feng R, Yao G, Chen W, Li W, Sun L. OP0163 Mesenchymal Stem Cells Prevent Podocyte Injury in Lupus Prone Mice via Educating Macrophage into An Anti-Inflammatory Phenotype. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2605] [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: 11/03/2022]
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Ning Y, Hu R, Yao G, Bo S. Time to positivity of blood culture and its prognostic value in bloodstream infection. Eur J Clin Microbiol Infect Dis 2016; 35:619-24. [PMID: 26825316 DOI: 10.1007/s10096-016-2580-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 01/11/2016] [Indexed: 12/26/2022]
Abstract
The purpose of this study was to investigate the relationship between the time to positivity (TTP) of blood cultures and outcome in patients with bloodstream infections (BSIs). Between January 1st, 2011 and December 31st, 2013, the blood cultures of inpatients with BSI or catheter-related BSI were collected at Peking University Third Hospital. The TTP of different isolates was analyzed, and the relationship between the TTP of isolates and outcome of patients with Enterobacter BSI was retrospectively analyzed. We analyzed the TTP of 886 isolates. Escherichia coli has the shortest (11.97 ± 10.06 h) and Candida has the longest first TTP (61.62 ± 42.77 h). 68.01 % of isolates reached positivity within 24 h and 88.33 % within 48 h. Over 90 % of E. coli isolates reached positivity within 24 h. Over 50 % of Candida isolates reached positivity within 48 h. The TTP differed significantly between cultures that were single or double positive for coagulase-negative staphylococci isolates, Enterobacteriaceae, and Pseudomonas aeruginosa, and between aerobic and anaerobic cultures of E. coli (p < 0.05). However, the TTP did not differ significantly between coagulase-negative staphylococci (double positivity) and Staphylococcus aureus. The best TTP threshold for prediction of mortality from Enterobacter species BSI was 16.3 h [area under the curve (AUC) 0.730, 95 % confidence interval (CI) 0.557, 0.864, sensitivity 100 %, specificity 44.4 %]. The TTP of clinical isolates may represent a valuable marker of the clinical significance of BSIs. Laboratories and clinics should consider using the TTP to predict the prognosis of patients with BSI by bacteria, including Enterobacter and other species.
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Affiliation(s)
- Y Ning
- Department of Laboratory Medicine, Peking University Third Hospital, Beijing, China
| | - R Hu
- Department of Laboratory Medicine, The First Affiliated Hospital of Gannan Medical College, Ganzhou, Jiangxi Province, China
| | - G Yao
- ICU, Peking University Third Hospital, Beijing, China
| | - S Bo
- ICU, Peking University Third Hospital, Beijing, China.
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Zhao HQ, Yao G, Yannaing S, ThanThan S, Kuwayama H. Insulinotropic action of bombesin-like peptides mediated by gastrin-releasing peptide receptors in steers. J Anim Sci 2016; 94:58-64. [PMID: 26812312 DOI: 10.2527/jas.2015-9495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The present study characterizes the receptor that mediates the insulinotropic action of bombesin-like peptides (BLP) in ruminants. Eight Holstein steers were randomly and intravenously injected with synthetic bovine gastrin-releasing peptide (GRP; 0.9 nmol/kg BW), neuromedin B (NMB; 0.9 nmol/kg BW), or neuromedin C (NMC; 0.9 nmol/kg BW), each alone or combined with the antagonist of GRP receptors N-acetyl-GRP-OCHCH (N-GRP-EE; 22.5 nmol/kg BW) or the antagonist of GH secretagogue receptor type 1a (GHS-R1a) [D-Lys]-GHRP-6 (21.5 nmol/kg BW). Blood samples were collected at -10, 0 (just before injection), 5, 10, 15, 20, 30, 45, 60, 75, and 90 min relative to injection time. Levels of injected peptides, insulin, and glucose in plasma were analyzed. Results showed that the peak of insulin levels was seen at 5 min after injection of NMC or GRP. Plasma glucose was observed in 2 phases; a significant rise followed a remarkable fall after NMC or GRP administration compared with injection of the vehicle ( < 0.05). On a same molar basis, effects of GRP on insulin and glucose were more potent than those of NMC ( < 0.05). The NMC-induced changes of insulin and glucose were completely blocked by N-GRP-EE, but [D-Lys]-GHRP-6 did not block any of these changes. Administration of NMB or N-GRP-EE alone did not change the circulating levels of insulin or glucose during any of the sampling time points ( > 0.05). These results indicated that the insulinotropic action of BLP is mediated by GRP receptors but not through a ghrelin/GHS-R1a pathway and that BLP may be involved in the regulation of glucose homeostasis in ruminants.
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Williams JE, Peacock J, Gubbay AN, Kuo PY, Ellard R, Gupta R, Riley J, Sauzet O, Raftery J, Yao G, Ross J. Routine screening for pain combined with a pain treatment protocol in head and neck cancer: a randomised controlled trial. Br J Anaesth 2015; 115:621-8. [PMID: 26385671 DOI: 10.1093/bja/aev263] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND We compared the effectiveness and cost of a pain screening and treatment program, with usual care in head and neck cancer patients with significant pain. METHODS Patients were screened for the presence of pain and then randomly assigned to either an intervention group, consisting of a pain treatment protocol and an education program, or to usual care. Primary outcome was change in the Pain Severity Index (PSI) over three months. RESULTS We screened 1074 patients of whom 156 were randomized to either intervention or usual care. Mean PSI was reduced over three months in both groups, with no significant difference between the two groups. The Pain Management Index (PMI) at three months, was significantly improved in the intervention group compared with usual care (P<0.001), as was Patient Satisfaction (mean difference in scores was statistically significant: -0.30 [-0.60 to -0.15]). All subjects reported clinically significant levels of anxiety and depression throughout the study. Treatment costs were significantly higher for intervention (mean=£400) compared with usual care (£200), with a low likelihood of being cost-effective. CONCLUSIONS There was no difference in the Pain Severity Index between the two groups. However there were significant improvements in the intervention group in patient satisfaction and PMI. The pain screening process itself was effective. Sufficient benefit was demonstrated as a result of the intervention to allow continued development of pain treatment pathways, rather than allowing pain treatment to be left to nonformalised ad hoc arrangements.
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Affiliation(s)
- J E Williams
- Department of Anaesthetics and Pain Management, Royal Marsden NHS Foundation Trust, London, UK
| | - J Peacock
- Division of Health and Social Care Research, King's College, London, UK NIHR Biomedical Research Centre at Guy's and St Thomas' NHS Foundation Trust, and King's College, London, UK
| | - A N Gubbay
- Department of Anaesthetics and Pain Management, Royal Marsden NHS Foundation Trust, London, UK
| | - P Y Kuo
- Department of Anaesthetics and Pain Management, Royal Marsden NHS Foundation Trust, London, UK
| | - R Ellard
- Department of Anaesthetics and Pain Management, Royal Marsden NHS Foundation Trust, London, UK
| | - R Gupta
- Department of Anaesthetics and Pain Management, Royal Marsden NHS Foundation Trust, London, UK
| | - J Riley
- Department of Palliative Medicine, Royal Marsden NHS Foundation Trust, London, UK
| | - O Sauzet
- AG Epidemiologie & International Public Health, Universität Bielefeld, Bielefeld, Germany
| | - J Raftery
- Dept. of Health Economics, University of Southampton, UK
| | - G Yao
- Department of Primary Care and Population Science, University of Southampton, UK
| | - J Ross
- Department of Palliative Medicine, Royal Marsden NHS Foundation Trust, London, UK National Heart and Lung Institute, Imperial College, London, UK
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Satkunendrarajah K, Nassiri F, Karadimas SK, Lip A, Yao G, Fehlings MG. Riluzole promotes motor and respiratory recovery associated with enhanced neuronal survival and function following high cervical spinal hemisection. Exp Neurol 2015; 276:59-71. [PMID: 26394202 DOI: 10.1016/j.expneurol.2015.09.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 08/03/2015] [Accepted: 09/19/2015] [Indexed: 10/23/2022]
Abstract
Cervical spinal cord injury (SCI) can result in devastating functional deficits that involve the respiratory and hand function. The mammalian spinal cord has limited ability to regenerate and restore meaningful functional recovery following SCI. Riluzole, 2-amino-6-trifluoromethoxybenzothiazole, an anti-glutamatergic drug has been shown to reduce excitotoxicity and confer neuroprotection at the site of injury following experimental SCI. Based on promising preclinical studies, riluzole is currently under Phase III clinical trial for the treatment of SCI (ClinicalTrials.gov: NCT01597518). Riluzole's anti-glutamatergic role has the potential to regulate neuronal function and provide neuroprotection and influence glutamatergic connections distal to the initial injury leading to enhanced functional recovery following SCI. In order to investigate this novel role of riluzole we used a high cervical hemisection model of SCI, which interrupts all descending input to motoneurons innervating the ipsilateral forelimb and diaphragm muscles. Following C2 spinal cord hemisection, animals were placed into one of two groups: one group received riluzole (8 mg/kg) 1 h after injury and every 12 h thereafter for 7 days at 6 mg/kg, while the second group of injured rats received vehicle solution for the same duration of time. A third group of sham injured rats underwent a C2 laminectomy without hemisection and served as uninjured control rats. Interestingly, this study reports a significant loss of motoneurons within the cervical spinal cord caudal to C2 hemisection injury. Disruption of descending input led to a decrease in glutamatergic synapses and motoneurons caudal to the injury while riluzole treatment significantly limited this decline. Functionally, Hoffmann reflex recordings revealed an increase in the excitability of the remaining ipsilateral cervical motoneurons and significant improvements in skilled and unskilled forelimb function and respiratory motor function in the riluzole-treated animals. In conclusion, using a C2 hemisection injury model, this study provides novel evidence of motoneuron loss caudal to the injury and supports riluzole's capacity to promote neuronal preservation and function of neural network caudal to the SCI resulting in early and sustained functional improvements.
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Affiliation(s)
- K Satkunendrarajah
- Department of Genetics and Development, Toronto Western Research Institute, and Spinal Program, Krembil Neuroscience Center, University Health Network, Toronto, Ontario, Canada
| | - F Nassiri
- Department of Genetics and Development, Toronto Western Research Institute, and Spinal Program, Krembil Neuroscience Center, University Health Network, Toronto, Ontario, Canada
| | - S K Karadimas
- Department of Surgery, University of Toronto, Ontario, Canada
| | - A Lip
- Department of Genetics and Development, Toronto Western Research Institute, and Spinal Program, Krembil Neuroscience Center, University Health Network, Toronto, Ontario, Canada
| | - G Yao
- Department of Genetics and Development, Toronto Western Research Institute, and Spinal Program, Krembil Neuroscience Center, University Health Network, Toronto, Ontario, Canada
| | - M G Fehlings
- Department of Genetics and Development, Toronto Western Research Institute, and Spinal Program, Krembil Neuroscience Center, University Health Network, Toronto, Ontario, Canada; Department of Surgery, University of Toronto, Ontario, Canada.
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Sun Y, Kong W, Chen W, Yao G, Feng X, Sun L. THU0037 Comparable Therapeutic Potential of Umbilical Cord Mesenchymal Stem Cells in Collagen Induced Arthritis with Anti-Tumor Necrosis Factor or Anti-CD20. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3220] [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: 11/04/2022]
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Zhang Z, Feng X, Deng W, Huang S, Yao G, Chen W, Sun L. AB0177 Human Umbilical Cord Mesenchymal Stem Cells Inhibit Follicular Helper T Cell Expansion in B6.Mrl-Faslpr Lupus Mice. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3237] [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: 11/04/2022]
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38
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Kong W, Deng W, Feng X, Yao G, Chen W, Tang X, Sun Y, Huang S, Zhang Z, Shi B, Sun L. THU0380 Increased Expression of Bruton Tyrosine Kinase in Patients with Lupus Nephritis and its Clinic Significance. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3302] [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: 11/04/2022]
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Sun Y, Deng W, Chen W, Yao G, Feng X, Sun L. THU0059 Citrullinated Fibrinogen Promotes Bone Marrow Mesenchymal Stem Cells to Assume a Pro-inflammatory Phenotype. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2922] [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: 11/03/2022]
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40
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Deng W, Chen W, Zhang Z, Huang S, Kong W, Sun Y, Feng X, Tang X, Yao G, Sun L. AB0179 Mesenchymal Stem Cells Promote the Generation of CD206+ Macrophage and Increase its Phagocytic Activity in Systemic Lupus Erythematosus. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3234] [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: 11/03/2022]
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41
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Yao G, Chen W, Tang X, Feng X, Sun L. AB0178 IL-12 Inhibits the Production of IL-10 in Patients with Sjogren Syndrome. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.3231] [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: 11/04/2022]
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Li S, Ma Q, Chen H, Wang D, Liu Y, Wei X, You L, Yao G, Tian K, Tang G. Genetic characterization of Bacillus anthracis in Guizhou Province, Southwest of China. BMC Microbiol 2015; 15:77. [PMID: 25887647 PMCID: PMC4391296 DOI: 10.1186/s12866-015-0414-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [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] [Received: 10/10/2014] [Accepted: 03/12/2015] [Indexed: 11/10/2022] Open
Abstract
Background Bacillus (B.) anthracis is the pathogen that causes fatal anthrax. Guizhou Province is an old foci of anthrax in the southwest of China. Human anthrax has also been frequently reported in Guizhou in recent year. However, there is limited information on the genetic background of local B. anthracis isolates in Guizhou Province. Strain-specific detection of this bacterium using molecular approaches has enhanced our knowledge of microbial genetics. In the present study, we employed Multiple Locus Variable Number Tandem Repeats (VNTR) Analysis (MLVA) assay to analyze the genetic characteristics of B. anthracis strains isolated in Guizhou Province and their relationships to worldwide distributed isolates. Results A total of 32 isolates of B. anthracis from soil, human, cattle, dog and water of different anthrax epidemics in Guizhou Province from 2006 to 2011 were confirmed with phage lysis test, penicillin inhibition test and PCR. MLVA-8 discriminated them into 28 unique MLVA types (MT G1 - G28), which were novel MTs compared with the previous reports. Cluster tree based on 32 isolates from Guizhou Province and 76 worldwide distributed isolates (30 MTs) showed they were divided into three clusters, designated A, B and C. All the 32 isolates were distributed in cluster A, which were further grouped into A1, A2, A3 and A4 sub-clusters. 32 isolates from Guizhou Province were closely grouped in each of the sub-clusters, respectively. Minimum Spanning Tree (MST) based on the MLVA data showed that the 28 MLVA profiles of isolates from Guizhou Province and 30 MLVA profiles of worldwide distributed isolates formed three clonal complexes (CCs) and ten singletons. Conclusions 28 novel MTs of B. anthracis from Guizhou were revealed and their relationships to worldwide isolates were showed. The results will provide important information for prevention of anthrax and also enhances our understanding of genetic characteristics of B. anthracis in China.
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Affiliation(s)
- Shijun Li
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, 101 Bageyan Road, Guiyang, 550004, Guizhou, People's Republic of China.
| | - Qing Ma
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, 101 Bageyan Road, Guiyang, 550004, Guizhou, People's Republic of China
| | - Hong Chen
- Guiyang Centre for Animal Disease Control and Prevention, Guiyang, China
| | - Dingming Wang
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, 101 Bageyan Road, Guiyang, 550004, Guizhou, People's Republic of China
| | - Ying Liu
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, 101 Bageyan Road, Guiyang, 550004, Guizhou, People's Republic of China
| | - Xiaoyu Wei
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, 101 Bageyan Road, Guiyang, 550004, Guizhou, People's Republic of China
| | - Lv You
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, 101 Bageyan Road, Guiyang, 550004, Guizhou, People's Republic of China
| | - Guanghai Yao
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, 101 Bageyan Road, Guiyang, 550004, Guizhou, People's Republic of China
| | - Kecheng Tian
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, 101 Bageyan Road, Guiyang, 550004, Guizhou, People's Republic of China
| | - Guangpeng Tang
- Institute of communicable disease control and prevention, Guizhou Provincial Centre for Disease Control and Prevention, 101 Bageyan Road, Guiyang, 550004, Guizhou, People's Republic of China
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Zhang Q, Tang G, Liu H, Zou Z, Yao G, Xiao J, Xie R, Ma H. [Investigation on the causes of increased hepatitis E cases reported in Guizhou province]. Zhonghua Liu Xing Bing Xue Za Zhi 2015; 36:228-231. [PMID: 25975398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To analyze causes of growing hepatitis E (HE) cases reported in Guizhou province, and probe into existing problems faced by medical institutions in diagnosis of clinical and laboratory-confirmed cases, for the purpose of improving the quality of HE surveillance system. METHODS Six hospitals reporting greater HE cases from 2007 to 2011 were pinpointed, whose reported cases rose suddenly in 2011. Such cases were investigated by means of impatient medical record review, results of laboratory test and clinician interview. RESULTS 136 of the 354 reported HE cases investigated were found compliant with the diagnostic criteria of HE with an accordance rate of 38.42%. Difference of the HE diagnostic accordance rate among individual years, hospitals and reporting departments was statistically significant. Such rate of hospital reports was found to be the lowest in 2011, ranging from 0 to 18.18% respectively; HE cases reported by non-infectious departments accounted for 61.30% of total cases reported, with its accordance rate considerably below the infectious departments (8.29%). HE positive cases and HE positive rate in 2011 were significantly higher than that of preceding years. CONCLUSION Such increase of reported HE cases in 2011 in the province was mostly attributable to more HE laboratory tests made by the hospitals, yet the accordance rates were lower than satisfactory. In this regard, the medical institutions in question were advised to enhance their competency training for HE diagnosis and case report quality.
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Affiliation(s)
- Qian Zhang
- Key Laboratory of Surveillance and Early-warning on Infectious Disease, Division of Infectious Diseases; Chinese Field Epidemiology Training Project, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Guangpeng Tang
- Guizhou Provincial Center for Disease Control and Prevention
| | - Huihui Liu
- Chinese Field Epidemiology Training Project, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Zhiting Zou
- Guizhou Provincial Center for Disease Control and Prevention
| | - Guanghai Yao
- Chinese Field Epidemiology Training Project, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Guizhou Provincial Center for Disease Control and Prevention
| | - Jiehua Xiao
- Chinese Field Epidemiology Training Project, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Hunan Provincial Center for Disease Control and Prevention
| | - Rongheng Xie
- Chinese Field Epidemiology Training Project, Chinese Center for Disease Control and Prevention, Beijing 102206, China; Guizhou Guiyang Center for Disease Control and Prevention
| | - Huilai Ma
- Chinese Field Epidemiology Training Project, Chinese Center for Disease Control and Prevention, Beijing 102206, China;
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Daluwatte C, Miles JH, Sun J, Yao G. Association between pupillary light reflex and sensory behaviors in children with autism spectrum disorders. Res Dev Disabil 2015; 37:209-215. [PMID: 25528080 PMCID: PMC4314503 DOI: 10.1016/j.ridd.2014.11.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 11/27/2014] [Accepted: 11/28/2014] [Indexed: 06/04/2023]
Abstract
Atypical pupillary light reflexes (PLR) has been observed in children with autism spectrum disorders (ASD), which suggests potential autonomic nervous system (ANS) dysfunction in ASD. ANS is also involved in modulating sensory processing and sensory dysfunction has been widely reported in children with ASD. However, the potential association between physiological measurements of PLR and behavioral observations (e.g. sensory behaviors) has not been examined extensively in literature. In this study, we investigated the potential correlation between PLR and frequently observed sensory behaviors in children with ASD. We found a significant association between PLR constriction amplitude and a set of sensory behaviors in the ASD group but not in typically developing children. Children with ASD who showed more atypical sensory behaviors also had smaller PLR constriction amplitudes. A smaller PLR constriction amplitude suggests lower parasympathetic modulation. This observation implies that some atypical sensory behaviors in children with ASD could be associated with decreased parasympathetic modulation.
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Affiliation(s)
- C Daluwatte
- Department of Biological Engineering, University of Missouri, Columbia, MO, USA.
| | - J H Miles
- Thompson Center for Autism & Neurodevelopment Disorders, University of Missouri, Columbia, MO, USA
| | - J Sun
- Department of Statistics, University of Missouri, Columbia, MO, USA
| | - G Yao
- Department of Biological Engineering, University of Missouri, Columbia, MO, USA
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Wang Y, Zhang K, Wasala NB, Duan D, Yao G. Optical polarization tractography revealed significant fiber disarray in skeletal muscles of a mouse model for Duchenne muscular dystrophy. Biomed Opt Express 2015; 6:347-52. [PMID: 25780728 PMCID: PMC4354596 DOI: 10.1364/boe.6.000347] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 01/03/2015] [Accepted: 01/03/2015] [Indexed: 05/14/2023]
Abstract
Optical polarization tractography (OPT) was recently developed to visualize tissue fiber architecture with cellular-level resolution and accuracy. In this study, we explored the feasibility of using OPT to study muscle disease in the mdx4cv mouse model of Duchenne muscular dystrophy. The freshly dissected tibialis anterior muscles of mdx4cv and normal mice were imaged. A "fiber disarray index" (FDI) was developed to quantify the myofiber disorganization. In necrotic muscle regions of the mdx4cv mice, the FDI was significantly elevated and can be used to segment the 3D necrotic regions for assessing the overall muscle damage. These results demonstrated the OPT's capability for imaging microscopic fiber alternations in muscle research.
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Gao M, Feng D, Yao G, Zhang Y, Chen CL, Lin Y. Chemical and mechanical strains tuned dielectric properties in Zr-doped CaCu3Ti4O12 highly epitaxial thin films. RSC Adv 2015. [DOI: 10.1039/c5ra18149f] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The dielectric properties of CaCu3Ti4O12 highly epitaxial thin films were successfully tuned by the in-plane strain.
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Affiliation(s)
- M. Gao
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
| | - D. Feng
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
| | - G. Yao
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
| | - Y. Zhang
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
| | - C.-L. Chen
- Department of Physics and Astronomy
- University of Texas at San Antonio
- San Antonio
- USA
- Department of Physics and The Texas Center for Superconductivity
| | - Y. Lin
- State Key Laboratory of Electronic Thin Films and Integrated Devices
- University of Electronic Science and Technology of China
- Chengdu
- P. R. China
- Institute of Electronic and Information Engineering in Dongguan
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Zhu S, Yao G, Halligan S, Atkin W, Dadswell E, Wooldrage K, Lilford RJ. Cost-Effectiveness Analysis Of Computed Tomographic Colonography Versus Double Contrast Barium Enema For Investigation Of Patients With Symptoms Of Colorectal Cancer: Economic Evaluation Alongside The Siggar Trial. Value Health 2014; 17:A719. [PMID: 27202547 DOI: 10.1016/j.jval.2014.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- S Zhu
- University of Birmingham, Edgbaston, Birmingham, UK
| | - G Yao
- University of Southampton, Southampton, UK
| | | | - W Atkin
- Imperial College London, London, UK
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Wang Y, Zhang K, Wasala NB, Yao X, Duan D, Yao G. Histology validation of mapping depth-resolved cardiac fiber orientation in fresh mouse heart using optical polarization tractography. Biomed Opt Express 2014; 5:2843-55. [PMID: 25136507 PMCID: PMC4133011 DOI: 10.1364/boe.5.002843] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Revised: 07/24/2014] [Accepted: 07/24/2014] [Indexed: 05/18/2023]
Abstract
Myofiber organization in cardiac muscle plays an important role in achieving normal mechanical and electrical heart functions. An imaging tool that can reveal microstructural details of myofiber organization is valuable for both basic research and clinical applications. A high-resolution optical polarization tractography (OPT) was recently developed based on Jones matrix optical coherence tomography (JMOCT). In this study, we validated the accuracy of using OPT for measuring depth-resolved fiber orientation in fresh heart samples by comparing directly with histology images. Systematic image processing algorithms were developed to register OPT with histology images. The pixel-wise differences between the two tractographic results were analyzed in details. The results indicate that OPT can accurately image depth-resolved fiber orientation in fresh heart tissues and reveal microstructural details at the histological level.
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Affiliation(s)
- Y. Wang
- Department of Bioengineering, University of Missouri, Columbia, MO 65211 USA
| | - K. Zhang
- Department of Molecular Microbiology & Immunology, University of Missouri, Columbia, MO 65211 USA
| | - N. B. Wasala
- Department of Molecular Microbiology & Immunology, University of Missouri, Columbia, MO 65211 USA
| | - X. Yao
- Department of Bioengineering, University of Missouri, Columbia, MO 65211 USA
| | - D. Duan
- Department of Molecular Microbiology & Immunology, University of Missouri, Columbia, MO 65211 USA
| | - G. Yao
- Department of Bioengineering, University of Missouri, Columbia, MO 65211 USA
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Guo Q, Sun X, Zhang Z, Zhang L, Yao G, Li F, Yang X, Song L, Jiang G. The effect of Astragalus polysaccharide on the Epstein-Barr virus lytic cycle. Acta Virol 2014; 58:76-80. [PMID: 24717032 DOI: 10.4149/av_2014_01_76] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Effects of a polysacharide from Chinese herbal plant Astragalus membranaceus (APS) on the expression of Epstein-Barr virus (EBV) immediate early proteins Zta, Rta and EA-D in Raji cells were examined. EBV switch from latent to lytic cycle in Raji cells was induced by 12-O-tetradecanoylphorbol-13-acetate (TPA) and sorbol butyrate (SB) and the effects of APS were examined by immunofluorescence, western blotting and flow cytometry. APS in a non-cytotoxic concentration of 30 μg/ml significantly suppressed the expression of Zta, Rta and EA-D during the EBV lytic cycle. Our observations indicate that APS is potentially useful as an anti-EBV drug.
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Yao G, Zou Z, Wang D, Huang Y, Nie W, Liu H, Tang G. [Evaluation on the effects of prevention and control programs regarding typhoid fever and paratyphoid fever in Guizhou province, from 2007 to 2012]. Zhonghua Liu Xing Bing Xue Za Zhi 2014; 35:552-556. [PMID: 25059366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE This study was to evaluate the effects of prevention and control regarding programs on typhoid fever and paratyphoid fever, in Guizhou province, from 2007 to 2012, to provide evidence for the improvement of related programs. METHODS Data on typhoid fever and paratyphoid including information on epidemics, individual, cases, measures for prevention and control programs taken and relative government documents were collected and analyzed in Guizhou province, from 2007 to 2012. Information related to the average annual incidence, nature of outbreaks, time span before confirmed diagnosis was made, unit which carried the case report, proportion of laboratory confirmed diagnosed cases and case-management were compared between 2007-2009 and 2010-2012 descriptively while chi-square test with Excel and EpiInfo software were used for data analysis. RESULTS In the period of 2007-2009, a total of 5 978 typhoid fever and paratyphoid fever cases were reported in Guizhou province with the average yearly incidence as 5.29/100 000. In the period of 2010-2012, 2 765 cases were reported with the average yearly incidence as 2.57/100 000. When compared to the former, data from the latter period showed that the average yearly incidence had declined 51.31% in all the prefectures. There were still some outbreaks appeared but the total number of cases involved reduced 87.50%. The time span before the confirmation of diagnosis became shorter but the difference was not statistically significant (χ² = 0.08, P = 0.99). Number of cases reported by hospitals at county or above had 11.51% of increase while those cases reported at the township hospitals or below decreased for 61.47% . The proportion of laboratory diagnosed cases increased 23.63%. Rates of timeliness on cards being filled in, input and audited showed increase of 8.44%, 6.76% and 2.40% respectively. CONCLUSION Successful measures for prevention and control on typhoid fever and paratyphoid fever had been remarkably taken in Guizhou province, but the potential risk of outbreaks still existed in some areas, suggesting that health education and surveillance programs including laboratory diagnosis, should be strengthened.
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Affiliation(s)
- Guanghai Yao
- Chinese Field Epidemiology Training Programme, Chinese Center for Disease Control and Prevention, Beijing 100050, China; Guizhou Provincial Center for Disease Control and Prevention
| | - Zhiting Zou
- Guizhou Provincial Center for Disease Control and Prevention.
| | - Dan Wang
- Guizhou Provincial Center for Disease Control and Prevention
| | - Yanping Huang
- Guizhou Provincial Center for Disease Control and Prevention
| | - Wei Nie
- Guizhou Provincial Center for Disease Control and Prevention
| | - Huihui Liu
- Chinese Field Epidemiology Training Programme, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - Guangpeng Tang
- Guizhou Provincial Center for Disease Control and Prevention
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