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You Q, Jiang CY, Zheng YX, Wu HY, Pan H, Yuan ZA, Zhang JJ, Yu HJ. [Changes in epidemic intensity of influenza during 2014-2020 in Shanghai]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1224-1230. [PMID: 37661613 DOI: 10.3760/cma.j.cn112338-20230104-00004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Objective: To evaluate the performance of the influenza surveillance network and compare the epidemic intensity of influenza during 2014-2020 in Shanghai. Methods: Based on the weekly reports of influenza-like illness (ILI) and laboratory-confirmed influenza cases from January 1, 2014 to December 31, 2020. This study first evaluated the data reporting and specimen collection of ILI cases for each sentinel hospital, and then calculated the percentage of ILI (ILI%), the proportion of specimens tested positive for influenza, and the incidence of influenza among all ILI outpatient and emergency visits to measure the epidemic intensity of influenza. Finally, seasonal autoregressive integrated moving average (ARIMA) model was applied to quantify the changes in epidemic intensity of influenza in 2020. Results: The proportion of influenza surveillance sentinel hospitals with a score of less than 5 in the evaluation of ILI data reporting and samples collection were 9.68% and 21.05% in 2020 in Shanghai, respectively. ILI% was estimated to be 1.51% (95%CI: 1.50%-1.51%) and 2.31% (95%CI: 2.30%-2.32%), respectively for 2014-2019 and 2020; the proportion of specimens tested positive was 24.27% (95%CI: 24.02%- 24.51%) and 7.15% (95%CI: 6.78%-7.54%), respectively; and the incidence of influenza was 3.66‰ (95%CI: 3.62‰-3.70‰) and 1.65‰ (95%CI: 1.57‰-1.74‰), respectively. ARIMA model showed that ILI% was increased by 45.25% in 2020 in Shanghai, and the proportion of specimens tested positive and the incidence of influenza were reduced by 78.45% and 51.80%, respectively. Conclusions: In 2020, the performance of influenza surveillance system has changed, ILI% has increased, the proportion of specimens tested positive and the incidence of influenza has decreased in Shanghai. The change in the quality of influenza surveillance is also a potential factor affecting the epidemic intensity of influenza. In the future, the quality control of influenza surveillance network still needs to be further strengthened.
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Affiliation(s)
- Q You
- Department of Epidemiology, Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - C Y Jiang
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Y X Zheng
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - H Y Wu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - H Pan
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - Z A Yuan
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - J J Zhang
- Department of Epidemiology, Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
| | - H J Yu
- Department of Epidemiology, Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai 200032, China
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Gul I, Kausar S, You Q, Sun W, Li Z, Abbas MN, Cui H. Identification and the immunological role of two Nimrod family genes in the silkworm, Bombyx mori. Int J Biol Macromol 2021; 193:154-165. [PMID: 34688681 DOI: 10.1016/j.ijbiomac.2021.10.083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/12/2021] [Accepted: 10/12/2021] [Indexed: 01/30/2023]
Abstract
In animals, immune signaling pathways and effector molecules participate in attenuating microbial infection. Recent work has shown that the Nimrod family proteins can directly bind to bacteria, and this binding leads to bacterial phagocytosis. Although the Nimrod gene family has been reported in many non-drosophilids, their functions remain unexplored in most insect species. Here, we report two members (Nimrod-B and Draper) of the Nimrod gene family from Bombyx mori and analyzed their role in immunity. The two genes were ubiquitously expressed in the tested tissues; but, they transcribed preferentially in immune tissues. The developmental profiles showed that BmNimrod-B and BmDraper transcription levels were highest in the pupal stages. Challenge with microbial pathogens induced the transcription levels of all two genes at different time points. Knockdown of BmDraper decreased the bacterial clearance and increased their replication relative to the control group, whereas, BmNimrod-B suppression had a non-significant effect on them. Furthermore, the mortality rate was increased after BmDraper silencing. The knockdown of these genes did not significantly affect the production of antimicrobial peptides following E. coli infection. Taken together, the Nimrod family genes play a crucial role in host defense by positively regulating the antibacterial immune response in silkworm B. mori.
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Affiliation(s)
- Isma Gul
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Saima Kausar
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Qiuxiang You
- Neurological Disease Center of the Third Affiliated Hospital of Chongqing Medical University, 401120, China
| | - Wei Sun
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Zekun Li
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China
| | - Muhammad Nadeem Abbas
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China.
| | - Hongjuan Cui
- State Key Laboratory of Silkworm Genome Biology, Key Laboratory of Sericultural Biology and Genetic Breeding, Ministry of Agriculture, Southwest University, China; Cancer Center, Medical Research Institute, Southwest University, Chongqing 400716, China.
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Ji J, You Q, Zhang J, Wang Y, Cheng J, Huang X, Zhang Y. Downregulation of TET1 Promotes Glioma Cell Proliferation and Invasion by Targeting Wnt/ β-Catenin Pathway. Anal Cell Pathol (Amst) 2021; 2021:8980711. [PMID: 34926132 PMCID: PMC8677395 DOI: 10.1155/2021/8980711] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 10/19/2021] [Indexed: 11/17/2022] Open
Abstract
Glioma is the most common malignant tumor in adult brain characteristic with poor prognosis and low survival rate. Despite the application of advanced surgery, chemotherapy, and radiotherapy, the patients with glioma suffer poor treatment effects due to the complex molecular mechanisms of pathological process. In this paper, we conducted the experiments to prove the critical roles TET1 played in glioma and explored the downstream targets of TET1 in order to provide a novel theoretical basis for clinical glioma therapy. RT-qPCR was adopted to detect the RNA level of TET1 and β-catenin; Western blot was taken to determine the expression of proteins. CCK8 assay was used to detect the proliferation of glioma cells. Flow cytometry was used to test cell apoptosis and distribution of cell cycle. To detect the migration and invasion of glioma cells, wound healing assay and Transwell were performed. It was found that downregulation of TET1 could promote the proliferation migration and invasion of glioma cells and the concomitant upregulation of β-catenin, and its downstream targets like cyclinD1 and c-myc were observed. The further rescue experiments were performed, wherein downregulation of β-catenin markedly decreases glioma cell proliferation in vitro and in vivo. This study confirmed the tumor suppressive function of TET1 and illustrated the underlying molecular mechanisms regulated by TET1 in glioma.
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Affiliation(s)
- Jianwen Ji
- Department of Neurological Center, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing 401120, China
| | - Qiuxiang You
- Department of Neurological Center, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing 401120, China
| | - Jidong Zhang
- Department of Neurological Center, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing 401120, China
| | - Yutao Wang
- Department of Neurological Center, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing 401120, China
| | - Jing Cheng
- Department of Neurological Center, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing 401120, China
| | - Xiangyun Huang
- Department of Neurological Center, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing 401120, China
| | - Yundong Zhang
- Department of Neurological Center, The Third Affiliated Hospital of Chongqing Medical University (General Hospital), Chongqing 401120, China
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Cheng F, Liu J, Zhang Y, You Q, Chen B, Cheng J, Deng C. Long Non-Coding RNA UBA6-AS1 Promotes the Malignant Properties of Glioblastoma by Competitively Binding to microRNA-760 and Enhancing Homeobox A2 Expression. Cancer Manag Res 2021; 13:379-392. [PMID: 33469379 PMCID: PMC7813458 DOI: 10.2147/cmar.s287676] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Accepted: 12/10/2020] [Indexed: 12/11/2022] Open
Abstract
Background The dysregulation of long non-coding RNAs is a frequent finding in glioblastoma (GBM) and is considered as a crucial mechanism contributing to GBM oncogenesis and progression. The biological roles and underlying mechanisms of action of UBA6 antisense RNA 1 (UBA6-AS1) in GBM have been rarely investigated. Therefore, the aim of the present study was to investigate in detail the role of UBA6-AS1 in the modulation of the malignant properties of GBM and explore the possible underlying mechanism(s). Methods The expression of UBA6-AS1 in GBM was determined via reverse transcription-quantitative PCR. Cell Counting Kit-8 assay, flow cytometric analysis, Transwell migration and invasion assays, and in vivo tumorigenicity assay were applied to elucidate the biological effects of UBA6-AS1 on GBM cells. The possible biological events associated with UBA6-AS1 were investigated by luciferase reporter, RNA immunoprecipitation (RIP) and rescue assays. Results UBA6-AS1 was overexpressed in GBM, which was consistent with the data from The Cancer Genome Atlas database. In the case of UBA6-AS1 depletion, GBM cell proliferation, migration and invasion were notably decreased and cell apoptosis was enhanced in vitro. Additionally, knockdown of UBA6-AS1 suppressed the proliferation of GBM cells in vivo. Mechanistically, UBA6-AS1 functioned as a competing endogenous RNA by adsorbing miR-760 and, consequently, upregulating homeobox A2 (HOXA2) expression. Rescue experiments demonstrated that the UBA6-AS1 silencing-mediated regulatory effects on GBM cells were reversed by the decrease of miR-760 or restoration of HOXA2 expression. Conclusion Therefore, the results of the present study revealed that UBA6-AS1 promoted the malignant progression of GBM via targeting the miR-760/HOXA2 axis, thereby representing a promising effective target for the treatment of GBM.
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Affiliation(s)
- Feifei Cheng
- Department of Neurology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, People's Republic of China
| | - Jiang Liu
- Department of Neurology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, People's Republic of China
| | - Yundong Zhang
- Department of Neurology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, People's Republic of China
| | - Qiuxiang You
- Department of Neurology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, People's Republic of China
| | - Bo Chen
- Department of Pharmacology, College of Pharmacy, Chongqing Medical University, Chongqing 401120, People's Republic of China
| | - Jing Cheng
- Department of Neurology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, People's Republic of China
| | - Chunyan Deng
- Department of Neurology, The Third Affiliated Hospital of Chongqing Medical University, Chongqing 401120, People's Republic of China
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You Q, Shi HY, Gong CF, Tian XY, Li S. Long non-coding RNA DLX6-AS1 acts as an oncogene by targeting miR-613 in ovarian cancer. Eur Rev Med Pharmacol Sci 2020; 23:6429-6435. [PMID: 31378881 DOI: 10.26355/eurrev_201908_18524] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Recently, long non-coding RNAs (lncRNAs) have been extensively studied for their role in tumor progression. This work explored the role of lncRNA DLX6-AS1 in mediating the development of ovarian cancer (OC). PATIENTS AND METHODS DLX6-AS1 expression was detected by Real Time-quantitative Polymerase Chain Reaction (RT-qPCR) in OC tissues. Moreover, wound healing assay and transwell assay were performed to detect the effect of DLX6-AS1 on the metastasis of OC. Furthermore, the underlying mechanism of DLX6-AS1 in mediating the progression of OC was explored through the Dual-Luciferase reporter gene assay and RNA immunoprecipitation assay (RIP). RESULTS DLX6-AS1 expression was higher in OC samples than that in the adjacent ones. Moreover, cell migration and invasion were suppressed after DLX6-AS1 knockdown in vitro. Conversely, cell migration and invasion were promoted by overexpressed DLX6-AS1. Moreover, the expression of microRNA-613 (miR-613) was upregulated via knockdown of DLX6-AS1, but was downregulated after overexpression of DLX6-AS1. Furthermore, the Luciferase reporter gene assay and RIP assay showed that miR-613 was a direct target of MIAT in DLX6-AS1 in OC tissues. CONCLUSIONS DLX6-AS1 could enhance migration and invasion of OC cells via targeting miR-613, which might serve as a potential therapeutic target in OC.
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Affiliation(s)
- Q You
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Harbin Medical University, Harbin, China.
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You Q, Shi HY, Gong CF, Tian XY, Li S. Long non-coding RNA DLX6-AS1 acts as an oncogene by targeting miR-613 in ovarian cancer. Eur Rev Med Pharmacol Sci 2020; 24:8243. [PMID: 32894524 DOI: 10.26355/eurrev_202001_22583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Since this article has been suspected of research misconduct and the corresponding authors did not respond to our request to prove originality of data and figures, "Long non-coding RNA DLX6-AS1 acts as an oncogene by targeting miR-613 in ovarian cancer, by Q. You, H.-Y. Shi, C.-F. Gong, X.-Y. Tian, S. Li, published in Eur Rev Med Pharmacol Sci 2019;23 (15): 6429-6435-DOI: 10.26355/eurrev_201908_18524-PMID: 31378881" has been withdrawn. The Publisher apologizes for any inconvenience this may cause. https://www.europeanreview.org/article/18524.
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Affiliation(s)
- Q You
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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You Q, Jing X, Fan S, Wang Y, Yang Z. Comparison of functional outcomes and health-related quality of life one year after treatment in patients with oral and oropharyngeal cancer treated with three different reconstruction methods. Br J Oral Maxillofac Surg 2020; 58:759-765. [PMID: 32532572 DOI: 10.1016/j.bjoms.2020.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 01/13/2020] [Indexed: 11/30/2022]
Abstract
We evaluated the functional outcomes and health-related quality of life (HRQoL) of 117 patients (who had had primary operations for oral and oropharyngeal squamous cell carcinoma) using the University of Washington Quality of Life Questionnaire version 4 (UW- QOL V4), European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire version 3 (EORTC QLQ-C30 v3) and Head and Neck version 1 (EORTC H&N35 v1). The patients were divided into groups according to the reconstruction techniques used: primary closure, submental island pedicled flap (SIPF), and radial forearm free flap (RFFF). Patients who had reconstruction with RFFF had better HRQoL as measured by swallowing, mastication, speaking, and overall score, than the primary closure group (p<0.05). There was no significant difference (p>0.05) between the RFFF and SIPF groups in overall QOL one year postoperatively. The HRQoL of the SIPF group was also better than that of the primary closure group in terms of mastication, speaking, and loss of appetite. Swallowing, mastication, and speaking are major factors that affect the HRQoL of patients one year after operation for oral and oropharyngeal cancer. Flap reconstruction can improve patients' QoL postoperatively. They can regain their ability to speak and swallow through training, and the importance of this issue must be addressed postoperatively.
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Affiliation(s)
- Q You
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China.
| | - X Jing
- Branch of Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510250, China.
| | - S Fan
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China.
| | - Y Wang
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China.
| | - Z Yang
- Department of Oral and Maxillofacial Surgery, Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China.
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Ni J, El-Ansary D, Heiberg J, Shen G, You Q, Gao Y, Liu K, Ke H, Royse CF. Validation of a revised Mandarin Chinese language version of the Postoperative Quality of Recovery Scale. Anaesth Intensive Care 2018; 46:278-289. [PMID: 29716486 DOI: 10.1177/0310057x1804600305] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The aim of the study was to validate a revised Mandarin version of the Postoperative Quality of Recovery Scale (PostopQRS) and to apply the revised version in a Chinese population. In a prospective design, bilingual volunteers completed the scale at baseline, day one, day seven, and day 14 in both languages, with the order of language and parallel forms randomised. In addition, lung cancer patients undergoing open or video-assisted thoracoscopic surgery (VATS) completed the Mandarin version prior to surgery, day one, day three, day seven, day 14, one month, and three months postoperatively. Sixty-eight volunteers participated in the validation part of the study and in the clinical application, 93 lung cancer patients were included. The scores in the Mandarin version were equal to the English version in all domains at all timepoints including the word generation task, when the Mandarin morpheme was included in any part of the Mandarin word. However, Mandarin scores were lower in the word generation task if the morpheme was only included in the first part of the word. In addition, the Mandarin version was able to identify lower rates of overall recovery (<i>P</i> <0.01), nociceptive (<i>P</i> <0.01), emotive (<i>P</i> <0.01), and activities of daily living recovery (<i>P</i>=0.02) after open surgery compared to after VATS. The revised Mandarin version is equivalent to the English version for the cognitive domain, if morpheme substitution for the word generation task is allowed as any part of the word, and it is able to discriminate quality of recovery in Chinese patients.
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Affiliation(s)
- J Ni
- Associate Professor of Rehabilitation, Department of Rehabilitation Medicine, The Affiliated Hospital of Nantong University; Nantong University; Nantong, China
| | - D El-Ansary
- Associate Professor and Director of Physiotherapy, Faculty of Health Sciences, Swinburne University; Honorary Senior Research Fellow, Department of Surgery, School of Medicine, The University of Melbourne; Melbourne, Victoria
| | - J Heiberg
- Research Fellow, Department of Anaesthesia and Pain Management, Royal Melbourne Hospital; Department of Surgery, University of Melbourne; Melbourne, Victoria
| | - G Shen
- Professor, Department of Rehabilitation Medicine, The Affiliated Hospital of Nantong University; Department of Rehabilitation Medicine, Nantong University; Nantong, China
| | | | | | | | | | - C F Royse
- Consultant Anaesthetist, Department of Anaesthesia and Pain Management, Royal Melbourne Hospital; Professor, Department of Surgery, University of Melbourne; Melbourne, Victoria
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Li Z, Kang H, You Q, Ossa F, Mead P, Quinton M, Karrow NA. In vitro bioassessment of the immunomodulatory activity of Saccharomyces cerevisiae components using bovine macrophages and Mycobacterium avium ssp. paratuberculosis. J Dairy Sci 2018; 101:6271-6286. [PMID: 29655556 DOI: 10.3168/jds.2017-13805] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 02/24/2018] [Indexed: 12/18/2022]
Abstract
The yeast Saccharomyces cerevisiae and its components are used for the prevention and treatment of enteric disease in different species; therefore, they may also be useful for preventing Johne's disease, a chronic inflammatory bowel disease of ruminants caused by Mycobacterium avium ssp. paratuberculosis (MAP). The objective of this study was to identify potential immunomodulatory S. cerevisiae components using a bovine macrophage cell line (BOMAC). The BOMAC phagocytic activity, reactive oxygen species production, and immune-related gene (IL6, IL10, IL12p40, IL13, IL23), transforming growth factor β, ARG1, CASP1, and inducible nitric oxide synthase expression were investigated when BOMAC were cocultured with cell wall components from 4 different strains (A, B, C, and D) and 2 forms of dead yeast from strain A. The BOMAC phagocytosis of mCherry-labeled MAP was concentration-dependently attenuated when BOMAC were cocultured with yeast components for 6 h. Each yeast derivative also induced a concentration-dependent increase in BOMAC reactive oxygen species production after a 6-h exposure. In addition, BOMAC mRNA expression of the immune-related genes was investigated after 6 and 24 h of exposure to yeast components. All yeast components were found to regulate the immunomodulatory genes of BOMAC; however, the response varied among components and over time. The in vitro bioassessment studies reported here suggest that dead yeast and its cell wall components may be useful for modulating macrophage function before or during MAP infection.
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Affiliation(s)
- Z Li
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - H Kang
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - Q You
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - F Ossa
- Lallemand Inc., Montréal, QC, Canada, H4P 2R2
| | - P Mead
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - M Quinton
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - N A Karrow
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada, N1G 2W1.
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Xu XH, Ding DF, Yong HJ, Dong CL, You N, Ye XL, Pan ML, Ma JH, You Q, Lu YB. Resveratrol transcriptionally regulates miRNA-18a-5p expression ameliorating diabetic nephropathy via increasing autophagy. Eur Rev Med Pharmacol Sci 2017; 21:4952-4965. [PMID: 29164562] [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: 06/07/2023]
Abstract
OBJECTIVE To investigate the effects of resveratrol on autophagy in the chronically diabetic nephropathy and to study the effects of the different expression of microRNAs after resveratrol (RSV) treated in db/db mice (diabetic mice). MATERIALS AND METHODS Db/m (non- diabetic) and db/db mice were randomly divided into intra gastric RSV treatment group or control group. Renal tissues were prepared for HE/PAS staining. In vitro, mouse podocytes cell lines were grown in different mediums with different dose of resveratrol treatment. microRNA (miRNA) gene chips assay was performed for differentially expressed miRNAs screening. Western blot was used to detect protein levels. RESULTS In vivo, RSV significantly decreased urinary albumin, serum creatinine, mesangial area and glomerular size in db/db mice. After RSV treatment, LC3-II/LC3-I and synaptopodin were increased while cleaved-caspase 3 was decreased in kidney tissues. In vitro, podocytes treated with RSV exhibited significantly increased LC3-II/LC3-I and decreased cleaved caspase 3. Moreover, this effect of RSV can be enhanced by rapamycin (RAPA, an activator of autophagy) but partially reversed by 3-MA (an autophagy inhibitor). Further, we found that miR-18a-5p was significantly upregulated after RSV treatment in db/db mice. Overexpression of miR-18a-5p in podocytes resulted in significant inhibition of cleaved-caspase 3 protein, and increased the ratio of LC3-II/LC3-I. Dual luciferase report assay validated that Atactic telangiectasis mutation (ATM) was a target of miR-18a-5p. In podocytes, downregulation of cleaved caspase 3 and the enhanced ratio of protein LC3-II/LC3-I were detected in cells transfected with ATM siRNA. CONCLUSIONS Role of miRNA-18a-5p in the regulation of autophagy via targeting ATM may represent a promising therapeutic target for preventing and attenuating diabetic nephropathy.
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Affiliation(s)
- X-H Xu
- Department of Endocrinology, Nanjing First Hospital Affiliated to Nanjing Medical University, Nanjing, Jiangsu, China.
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Qi Y, Wang Y, You Q, Tsai F, Liu W. Surgical treatment and optical coherence tomographic evaluation for accidental laser-induced full-thickness macular holes. Eye (Lond) 2017; 31:1078-1084. [PMID: 28282068 DOI: 10.1038/eye.2017.41] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2016] [Accepted: 01/25/2017] [Indexed: 12/28/2022] Open
Abstract
PurposeTo report OCT appearance and surgical outcomes of full-thickness macular holes (MHs) accidentally caused by laser devices.Patients and methodsThis retrospective case series included 11 eyes of 11 patients with laser-induced MHs treated by pars plana vitrectomy, internal limiting membrane (ILM) peeling, and gas or silicone oil tamponade. Evaluations included a full ophthalmic examination, macular spectral-domain optical coherence tomography (SD-OCT), and fundus photography. Main outcome measures is MH closure and final visual acuity; the secondary outcome was the changes of retinal pigment epithelium and photoreceptor layer evaluated by sequential post-operative SD-OCT images.ResultsFive patients were accidentally injured by a yttrium aluminum garnet (YAG) laser and six patients by handheld laser. MH diameters ranged from 272 to 815 μm (mean, 505.5±163.0 μm) preoperatively. Best-corrected visual acuity (BCVA) improved from a mean of 0.90 logMAR (range, counting finger-8/20) preoperatively to a mean of 0.34 logMAR (range, a counting finger-20/20) postoperatively (P=0.001, t=4.521). Seven of 11 patients (63.6%) achieved a BCVA better than 10/20. Ten patients had a subfoveal hyperreflectivity and four patients had a focal choroidal depression subfoveal preoperatively. At the last follow-up, all 11 eyes demonstrated the following: closure of the macular hole, variable degrees of disruption of external limiting membrane (ELM) and outer photoreceptor ellipsoid and interdigitation bands. In 10 eyes, the disruption was in the form of focal defects in the outer retina. After surgery, the subfoveal hyperreflectivity and focal choroidal depression remained.ConclusionAccidental laser-induced full-thickness macular holes can be successfully closed with surgery. Inadvertent retinal injury from laser devices, especially handheld laser injury has occurred with increasing frequency in recent years. However, there is a paucity of data regarding these types of injuries, mostly in the form of case reports. We hereby reported 11 eyes of 11 patients with laser-induced macular holes treated by vitrectomy. All the macular holes closed after surgery and the corresponding visual acuities significantly improved postoperatively.
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Affiliation(s)
- Y Qi
- Beijing Tongren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Y Wang
- Beijing Tongren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Q You
- Beijing Tongren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - F Tsai
- Sharp Rees-Stealy Medical Group, San Diego, CA, USA
| | - W Liu
- Beijing Tongren Eye Center, Beijing Ophthalmology and Visual Science Key Lab, Beijing Tongren Hospital, Capital Medical University, Beijing, China
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12
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Yip L, Oh SY, Li Z, You Q, Quinton VM, Gilchrist GC, Karrow NA. Short communication: Ovine leukocyte telomere length is associated with variation in the cortisol response to systemic bacterial endotoxin challenge. J Dairy Sci 2016; 99:3157-3161. [PMID: 26805999 DOI: 10.3168/jds.2015-10363] [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: 09/07/2015] [Accepted: 12/07/2015] [Indexed: 11/19/2022]
Abstract
Stress has been associated with biological aging and numerous age-related diseases. This may be due, in part, to accelerated shortening of telomeres, which are critical genomic structures that cap and protect chromosomal ends. Dysfunction of the hypothalamic-pituitary-adrenal axis may indirectly contribute to telomere shortening if an animal reacts too strongly or weakly to a stressor, leading to accelerated biological aging. In this study, outbred Rideau-Arcott sheep were stress challenged with Escherichia coli endotoxin and classified as high, middle, or low cortisol responders to investigate a potential relationship between cortisol response and age, and telomere length. In the present study, no association was found between age and telomere length. The study, however, revealed shorter telomeres in high and low cortisol responders compared with the middle cortisol responders, which suggests that health and longevity may be compromised in extreme high- and low-stress-responding sheep.
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Affiliation(s)
- L Yip
- Department of Animal & Poultry Science, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - S Y Oh
- Department of Animal & Poultry Science, University of Guelph, Guelph, ON, Canada, N1G 2W1.
| | - Z Li
- Department of Animal & Poultry Science, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - Q You
- Department of Animal & Poultry Science, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - V M Quinton
- Department of Animal & Poultry Science, University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - G C Gilchrist
- Department of Biomedical Science, Ontario Veterinary College (OVC), University of Guelph, Guelph, ON, Canada, N1G 2W1
| | - N A Karrow
- Department of Animal & Poultry Science, University of Guelph, Guelph, ON, Canada, N1G 2W1.
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13
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Zhou Y, Shou F, Zhang H, You Q. Adenovirus-delivered wwox inhibited lung cancer growth in vivo in a mouse model. Cancer Gene Ther 2015; 23:1-6. [DOI: 10.1038/cgt.2015.56] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Revised: 09/01/2015] [Accepted: 09/02/2015] [Indexed: 01/17/2023]
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14
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Sharma BS, Abo-Ismail MK, Schenkel FS, You Q, Verschoor CP, Pant SD, Karrow NA. Association ofTLR4polymorphisms withMycobacterium aviumsubspeciesparatuberculosisinfection status in Canadian Holsteins. Anim Genet 2015; 46:560-5. [DOI: 10.1111/age.12333] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/22/2015] [Indexed: 11/29/2022]
Affiliation(s)
- B. S. Sharma
- Animal and Poultry Science; University of Guelph; 50 Stone Road East Guelph Ontario N1G 2W1 Canada
| | - M. K. Abo-Ismail
- Animal and Poultry Science; University of Guelph; 50 Stone Road East Guelph Ontario N1G 2W1 Canada
- Department of Animal and Poultry Science; Damanhour University; Damanhour Egypt
| | - F. S. Schenkel
- Animal and Poultry Science; University of Guelph; 50 Stone Road East Guelph Ontario N1G 2W1 Canada
| | - Q. You
- Animal and Poultry Science; University of Guelph; 50 Stone Road East Guelph Ontario N1G 2W1 Canada
| | - C. P. Verschoor
- Pathology and Molecular Medicine; McMaster University; Hamilton Canada
| | - S. D. Pant
- Animal and Veterinary Sciences; Charles Sturt University; Wagga Wagga Australia
| | - N. A. Karrow
- Animal and Poultry Science; University of Guelph; 50 Stone Road East Guelph Ontario N1G 2W1 Canada
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15
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Xu J, Xu L, Li LT, You Q, Cha LS. IGFBP-3 A-202C and C2133G polymorphisms and colorectal cancer risk: a meta-analysis of case-control studies. Genet Mol Res 2015; 14:3370-86. [PMID: 25966104 DOI: 10.4238/2015.april.15.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Recent evidence suggests that genetic variations in the IGFBP-3 gene may impact susceptibility to colorectal cancer, but individually published results are inconclusive. Our meta-analysis was aimed at providing a more precise estimation of these associations. An extensive literature search was conducted for appropriate articles published before May 1, 2013. This meta-analysis was performed using the STATA 12.0 software. The crude odds ratios (OR) with 95% confidence interval (CI) were calculated. Eleven case-control studies were included with a total of 11,895 colorectal cancer patients and 17,147 healthy controls. Our meta-analysis indicated that the G variant of IGFBP-3 C2133G polymorphism may be associated with increased colorectal cancer risk. However, no statistically significant association was noted between IGFBP-3 A-202C polymorphism and colorectal cancer risk. No publication bias was detected in this meta-analysis. The current meta-analysis suggests that the IGFBP-3 C2133G polymorphism may confer susceptibility to colorectal cancer. The G variant of the IGFBP-3 C2133G polymorphism may serve as a useful biomarker for predicting the risk of colorectal cancer.
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Affiliation(s)
- J Xu
- Department of General Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - L Xu
- Department of Vascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - L T Li
- Department of General Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Q You
- Department of General Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - L S Cha
- Department of General Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
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16
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Liu D, Lian H, Wang J, Li X, Zhao Q, You Q. Efficacy of early bundle therapy on moderate to severe aspiration pneumonia after cervical esophagogastrostomy for esophageal cancer. Minerva Med 2015; 106:79-86. [PMID: 25517501] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
AIM The aim of this paper was to investigate the methodology and clinical efficacy of early bundle therapy for complicated moderate to severe aspiration pneumonia after cervical esophagogastrostomy for esophageal cancer. METHODS A prospective study was conducted to analyze the clinical data from 49 patients who developed complicated moderate to severe aspiration pneumonia after cervical esophagogastrostomy for esophageal cancer. Among them, 27 patients underwent a bundle therapy-tracheostomy followed by ventilator-assisted breathing with reverse trendelenburg position, early goal-directed hemodynamic support, enteral nutrition by nasointestinal tube, effective antibiotic usage and large doses of expectorants in addition to the conventional treatments. The remaining 22 patients underwent conventional treatment (controls). The hospital fatality rates, incidence of serious complications, mechanical ventilation time and ICU length of stay of the two groups were compared. RESULTS Patients in the bundle therapy group had higher cure rate of pneumonia than the control group (P=0.041), significantly lower fatality rate than the controls (P=0.005), lower incidence of complications than the controls (P<0.05), shorter ICU length of stay than the control group (P=0.017), significantly shorter mechanical ventilation time (P=0.032), lower Acute Physiology and Chronic Health Evaluation II Score (P=0.036) and lower Clinical Pulmonary Infection Score (P=0.047). CONCLUSION Early bundle therapy can effectively improve the treatment efficacy for moderate to severe aspiration pneumonia after cervical esophagogastrostomy for esophageal cancer.
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Affiliation(s)
- D Liu
- Department of Gastroenterology, Affiliated Hospital of Jiangnan University, the Fourth People's Hospital of Wuxi City, Wuxi, People's Republic of China -
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Bai Z, Xie H, You Q, Pickerill S, Zhang Y, Li T, Geng J, Hu L, Shan H, Di B. Isothermal cross-priming amplification implementation study. Lett Appl Microbiol 2014; 60:205-9. [DOI: 10.1111/lam.12342] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Revised: 10/16/2014] [Accepted: 10/17/2014] [Indexed: 11/28/2022]
Affiliation(s)
- Z. Bai
- Guangzhou Center for Disease Control and Prevention; Guangzhou Guangdong China
| | - H. Xie
- Guangzhou Center for Disease Control and Prevention; Guangzhou Guangdong China
| | - Q. You
- Ustar Biotechnologies (Hangzhou) Co., Ltd.; Hangzhou Zhejiang China
| | - S. Pickerill
- Ustar Biotechnologies (Hangzhou) Co., Ltd.; Hangzhou Zhejiang China
| | - Y. Zhang
- Guangzhou Center for Disease Control and Prevention; Guangzhou Guangdong China
| | - T. Li
- Guangzhou Center for Disease Control and Prevention; Guangzhou Guangdong China
| | - J. Geng
- Guangzhou Center for Disease Control and Prevention; Guangzhou Guangdong China
| | - L. Hu
- Ustar Biotechnologies (Hangzhou) Co., Ltd.; Hangzhou Zhejiang China
| | - H. Shan
- ADICON Clinical Laboratory, Inc.; Hangzhou Zhejiang China
| | - B. Di
- Guangzhou Center for Disease Control and Prevention; Guangzhou Guangdong China
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18
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Xu J, Xu L, Li LT, You Q, Cha LS. HIF1A gene Pro582Ser polymorphism and susceptibility to digestive tract cancers: a meta-analysis of case-control studies. Genet Mol Res 2014; 13:5732-44. [PMID: 25117331 DOI: 10.4238/2014.july.25.29] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Many existing studies have demonstrated that common polymorphisms in the hypoxia inducible factor-1α (HIF-1A) may contribute to the development of digestive tract cancers, but individually published studies showed inconclusive results. This meta-analysis aimed to derive a precise estimation of the relationships between HIF1A Pro582Ser polymorphism and the risk of digestive tract cancers. We searched CISCOM, CINAHL, Web of Science, PubMed, Google Scholar, EBSCO, Cochrane Library, and CBM databases from inception through May 1, 2013. Meta-analysis was performed using the STATA 12.0 software. We assessed 6 case-control studies that included a total of 911 digestive tract cancer patients and 2774 healthy controls. Our meta-analysis indicated that HIF1A Pro582Ser polymorphism was associated with an increased risk of digestive tract cancer. Subgroup analysis by ethnicity suggested that HIF1A Pro582Ser polymorphism might increase an individual's susceptibility to digestive tract cancer in Asian populations. However, similar association was not observed in Caucasian populations. In conclusion, our findings suggest that HIF1A Pro582Ser polymorphism may contribute to the risk of digestive tract cancers, especially in Asian populations.
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Affiliation(s)
- J Xu
- Department of General Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - L Xu
- Department of Vascular Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - L T Li
- Department of General Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Q You
- Department of General Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - L S Cha
- Department of General Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
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19
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Duan L, You Q, Chen X, Wang H, Zhang H, Xie D, Xu X, Jiang G. Outcome and prognosis for patients younger than thirty with primary lung cancer. MINERVA CHIR 2013; 68:175-182. [PMID: 23612231] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
AIM Aim of the present study was to investigate the clinical and pathological features of surgical treatment for primary bronchogenic carcinoma in adolescent patients. PATIENTS We retrospectively reviewed the clinico-pathological records documenting surgical outcomes and prognostic factors in 68 lung cancer patients aged less than 30 years old enrolled in our hospital between March 1980 and December 2009. RESULTS Sixty-eight patients were identified (38 male, 30 female) with a mean age of 22±5 years (range 8 to 29 years). Preoperative clinical manifestations were present in 82.4% (56/68) of the patients and 26.5% (16/68) of patients were initially misdiagnosed. Fifty-two patients had undergone radical surgery, 4 palliative surgery, 9 had exploratory thoracotomies, and 3 had thoracoscopic lung biopsies. Eight patients were classified (TNM) stage Ia, 7 stage Ib, 9 stage IIa, 13 stage IIb, 17 stage IIIa, 10 stage IIIb, and 4 stage IV. Postoperative atelectasis was observed in 4.41% (3/68) of the patients, and 1.47% (1/68) died of respiratory failure 5 days after exploratory thoracotomy. The overall 5-year survival rate in very young people was 31%, while those who underwent radical surgery was slightly higher at 36.7%. Five-year survival rates were correlated with the surgical procedures and pTNM stage (P <0.05). Multivariate analysis indicated that the TNM stage is the only independent prognostic factor (P=0.000). CONCLUSION We conclude that radical surgeries, the predominant comprehensive therapies are the best choice for primary lung cancer patients younger than 30 years of age.
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Affiliation(s)
- L Duan
- Department of Thoracic Surgery, Tongji University School of Medicine Shanghai, China.
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20
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Stryker JA, Fisher R, You Q, Or-Rashid MM, Boermans HJ, Quinton M, McBride BW, Karrow NA. Effects of dietary fish meal and soybean meal on the ovine innate and acquired immune response during pregnancy and lactation. Animal 2013; 7:151-9. [PMID: 23031339 DOI: 10.1017/s175173111200136x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
In recent years, livestock producers have been supplementing animal diets with fish meal (FM) to produce value-added products for health conscious consumers. As components of FM have unique neuroendocrine-immunomodulatory properties, we hypothesize that livestock producers may be influencing the overall health of their animals by supplementing diets with FM. In this study, 40 pregnant ewes were supplemented with rumen protected (RP) soybean meal (SBM: control diet) or RP FM, commencing gestation day 100 (gd100), in order to evaluate the impact of FM supplementation on the innate and acquired immune response and neuroendocrine response of sheep during pregnancy and lactation. On gd135, half the ewes from each diet (n = 10 FM, n = 10 SBM) were challenged iv with lipopolysaccharide (LPS) to simulate a systemic bacterial infection and the febrile, respiratory and neuroendocrine responses were monitored over time; the other half (n = 10 FM, n = 10 SBM) of the ewes received a saline injection as control. On lactation day 20 (ld20), all ewes (n = 20 FM, n = 20 SBM) were sensitized with hen egg white lysozyme (HEWL) and the serum haptoglobin (Hp) response was measured over time. The cutaneous hypersensitivity response (CHR) to HEWL challenge was measured on ld30 (n = 20 FM, n = 20 SBM), and blood samples were collected over time to measure the primary and secondary immunoglobulin G (IgG) response to HEWL. There was an attenuated trend in the LPS-induced febrile response by the FM treatment when compared with the SBM treatment (P = 0.06), as was also true for the respiratory response (P = 0.07), but significant differences in neuroendocrine function (serum cortisol and plasma ACTH) were not observed between treatments. Basal Hp levels were significantly lower in the FM supplemented ewes when compared with the SBM supplemented ewes (P < 0.01), and the Hp response to HEWL sensitization differed significantly over time between treatments (P < 0.01). The CHR to HEWL was also significantly attenuated in the FM treatment compared with the SBM (P < 0.01); however, treatment differences in the primary and secondary IgG responses to HEWL were not observed. These results indicate that FM supplementation differentially affects the innate and acquired immune responses in pregnant and lactating sheep compared with a typical SBM diet of commercial flocks. The long-term implications of this immunomodulation warrant further investigation.
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Affiliation(s)
- J A Stryker
- Department of Animal and Poultry Science, University of Guelph, Ontario, Canada
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Abstract
Pulmonary pseudoangiosarcomatous squamous cell carcinoma (PSCC) is a rare aggressive variant of squamous cell carcinoma. Histopathologically, PSCC is characterized by interanastomosing cords and channels, lined by atypical cells, with spaces containing erythrocytes or floating tumour cells. PSCC mimics angiosarcoma, so careful attention should be paid to immunohistochemical differences. Two PSCC cases are described here: in a 79-year-old male, bronchoscopy revealed mucosal swelling and hypertrophy and an adrenal mass was found 1 month later; in a 76-year-old male, computed tomography revealed rib destruction due to a non-calcified soft-tissue tumour and, although the tumour resembled an angiosarcoma, endothelial markers were negative and cytokeratin and p63 markers were positive. Immunohistochemical analyses may be helpful in establishing an accurate diagnosis. PSCC had a progressive course in both patients, who died ≤ 3 months postdiagnosis.
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Affiliation(s)
- M Kong
- Department of Pathology, The First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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You Q, Jiang C, Wu Y, Yu X, Chen Y, Zhang X, Wei W, Wang Y, Tang Z, Jiang D, Wu Y, Wang C, Meng X, Zhao X, Kong W. Subcutaneous Administration of Modified Vaccinia Virus Ankara Expressing an Ag85B-ESAT6 Fusion Protein, but Not an Adenovirus-Based Vaccine, Protects Mice Against Intravenous Challenge with Mycobacterium tuberculosis. Scand J Immunol 2011; 75:77-84. [DOI: 10.1111/j.1365-3083.2011.02629.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Verschoor CP, Pant SD, You Q, Schenkel FS, Kelton DF, Karrow NA. Single nucleotide polymorphisms alter the promoter activity of bovine MIF. Anim Biotechnol 2011; 22:143-50. [PMID: 21774622 DOI: 10.1080/10495398.2011.580219] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Macrophage migration inhibitory factor (MIF) is a unique pro-inflammatory cytokine whose chief functions include modulating TLR4 expression, and suppressing the anti-inflammatory effects of glucocorticoids. Not surprisingly, MIF is involved in a number of inflammatory diseases and single nucleotide polymorphisms (SNPs) have been implicated in modulating disease severity. The objective of the present study was to determine if SNPs in 5' region of bovine MIF affects its promoter activity. Three SNPs were identified, -1078A>G, -395A>G, and -400G>C, all of which fall within predicted transcription factor binding regions. Reporter gene assays indicate that the identified SNPs have a significant effect of modulating MIF promoter activity. Finally, gene association analysis suggests a significant relationship of -395A>G with the susceptibility to Mycobacterium avium ssp. paratuberculosis infection, the causative agent of Johne's disease. Given the relationships revealed in the current study, it is clear that the role of MIF in bovine diseases such as Johne's disease merits further investigation.
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Affiliation(s)
- C P Verschoor
- Centre for Genetic Improvement of Livestock, Department of Animal and Poultry Science, University of Guelph, Guelph, Ontario, Canada
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Pant SD, Verschoor CP, Schenkel FS, You Q, Kelton DF, Karrow NA. Bovine PGLYRP1 polymorphisms and their association with resistance to Mycobacterium avium ssp. paratuberculosis. Anim Genet 2011; 42:354-60. [PMID: 21749417 DOI: 10.1111/j.1365-2052.2010.02153.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Mycobacterium avium ssp. paratuberculosis (MAP) causes a chronic, granulomatous inflammatory condition of the intestines in ruminants and wild-type species. It causes significant economic losses to the dairy and beef industries owing to reduced productivity, premature culling and mortality. Bovine peptidoglycan recognition protein 1 is an important pattern recognition molecule that is capable of directly killing microorganisms. The goal of this study was to identify single nucleotide polymorphisms (SNPs) in the gene encoding bovine peptidoglycan recognition protein 1 and to assess their association with susceptibility to MAP infection in dairy cattle. Blood and milk samples were collected from Holsteins in Southwestern and Eastern Ontario and tested for MAP infection using blood and milk ELISAs. A resource population consisting of 197 infected (S/P > 0.25) and 242 healthy (S/P < 0.10) cattle was constructed. Sequencing of pooled DNA was used to identify three SNPs (c.102G>C, c.480G>A and c.625C>A) that were genotyped in the resource population. Statistical analysis was performed using a logistic regression model fitting the additive and dominance effects of each SNP in the model. SNP c.480G>A (P = 0.054) was found to be associated with susceptibility to MAP infection. Cows with a copy of the major allele 'G' at this locus had an odds ratio of 1.51 (95% CI: 0.99-2.31) for being infected with MAP.
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Affiliation(s)
- S D Pant
- Centre for Genetic Improvement of Livestock, Department of Animal and Poultry Science, University of Guelph, Guelph, ON, Canada
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Abstract
The secreted glycoprotein YKL-40 is a member of the chitinase family and elevated serum YKL-40 levels have been reported to be associated with reduced survival in several malignancies, including endometrial cancer. This study investigated immunoreactivity to YKL-40 protein and its prognostic implications in endometrial cancer. Levels of YKL-40 protein in normal endometrium (n = 42), endometrial hyperplasia (n = 40) and endometrial adeno carcinoma (n = 68) were examined using immunohistochemistry. YKL-40 immunoreactivity was significantly higher in endometrial adenocarcinoma compared with hyperplastic and normal endo metrium. In addition, high immuno reactivity of YKL-40 protein was associated with advanced stage, high histological grade, lymph node metastasis and lympho vascular invasion. Moreover, positive immunoreactivity for YKL-40 was a significant predictor of poor prognosis, as measured by estimated progression-free survival and estimated overall survival, compared with negative immunoreactivity. In conclusion, high YKL-40 immuno reactivity in endometrial cancer may be associated with poor prognosis.
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Affiliation(s)
- C Peng
- Department of Obstetrics and Gynaecology, The First Affiliated Hospital, Harbin Medical University, Harbin, China
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26
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You Q, Tong X, Guan Y, Zhang D, Huang M, Zhang Y, Zheng J. The biological characteristics of human third trimester amniotic fluid stem cells. J Int Med Res 2009; 37:105-12. [PMID: 19215679 DOI: 10.1177/147323000903700112] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Third trimester amniotic fluid (AF)-derived human mesenchymal stem cells (MSCs) can be greatly expanded in vitro and induced to differentiate into multiple mesenchymal cell types. This study aimed to investigate the biological characteristics of MSCs from third trimester AF as a new source of therapeutic stem cells. Forty third trimester AF samples were obtained from healthy women who underwent elective caesarean section for breech presentation. A simple culture protocol for MSCs was used. A cell growth curve was drawn, and cell surface antigens and cytokines were analysed by immunofluorescent staining, reverse transcription-polymerase chain reaction and flow cytometry. MSCs from third-trimester AF were successfully isolated, cultured and enriched. MSCs expanded extensively without feeders, they were not tumourigenic and were induced to differentiate into osteocytes. Surface antigens were analysed and found to express the pluripotency marker Oct-4. Considering the great feasibility of biomedical engineering using MSCs, third trimester AF may provide a rich source for investigation of human MSCs.
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Affiliation(s)
- Q You
- Stem Cell Investigation Centre, Department of Gynaecology and Obstetrics, The First Affiliated Hospital of Harbin Medical University, Heilongjiang, China
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27
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You Q, Xu L, Jonas JB. Reply to Cheung et al. Eye (Lond) 2007. [DOI: 10.1038/sj.eye.6702907] [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: 11/09/2022] Open
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Abstract
PURPOSE To determine the prevalence of epiretinal membranes in the adult Chinese population. METHODS The Beijing Eye Study, a population-based, cross-sectional cohort study, included 4439 subjects out of 5324 subjects invited to participate (response rate 83.4%) with an age of 40+ years. The present investigation consisted of 4378 (98.6%) subjects for whom readable fundus photographs (30 degrees nonstereoscopic colour images) were available. Assessing the fundus photographs, we differentiated two membrane types: cellophane maculopathy and premacular fibrosis. RESULTS Prevalence rate of epiretinal membranes was 2.2+/-0.2% (mean+/-SE) (95% confidence interval (CI): 1.9,2.5) per eye or 2.2+/-0.2% (95% CI: 1.8,2.7) per subject. In binary logistic regression analysis, the prevalence of epiretinal membranes was significantly associated with age (P<0.001; 95% CI: 1.07,1.12), visual field loss (P<0.001; 95% CI: 1.03,1.07), hyperopia (P=0.02; 95% CI: 1.01,1.18), and higher education (P<0.001; 95% CI: 1.29,1.74). Cellophane maculopathy showed a prevalence rate of 1.11+/-0.1% (95% CI: 0.9,1.3) per eye and 1.8+/-0.2% (95% CI: 1.4,2.2) per subject. Its prevalence was significantly associated with age (P<0.001; 95% CI: 1.08,1.13), higher education (P<0.001; 95% CI: 1.26,1.92), and visual field loss (P=0.009; 95% CI: 1.01,1.07). Premacular fibrosis had a prevalence rate of 1.06+/-0.1% (95% CI: 0.9,1.3) per eye and 1.8+/-0.2% (95% CI: 1.4,2.2) per subject. It was significantly associated with age (P<0.001; 95% CI: 1.06,1.11), higher level of education (P<0.001; 95% CI: 1.15,1.74), and visual field loss (P=0.001; 95% CI: 1.02,1.08). CONCLUSION In adult Chinese in Greater Beijing, epiretinal membranes including cellophane maculopathy and premacular fibrosis occur in a relatively low frequency which may be lower than in Western countries. Epiretinal membranes including its subtypes of cellophane maculopathy and epiretinal fibrosis were associated with age and hyperopic refractive error.
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Affiliation(s)
- Q You
- Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital University of Medical Sciences, Beijing, China
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29
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Gao T, You Q. [The study of Fagopyrum tataricum complex prescription on type II diabetes rats]. Zhong Yao Cai 2001; 24:424-6. [PMID: 11563191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
OBJECTIVE To observe the effect of Fagopyrum tatarium complex prescription on insulin resistance and indexes of blood stasis such as TG, TCh in type II diabetes rats. METHOD To obtain type II diabetes rat model, rats were injected 25 mg/kg STZ and fed on high energy feed. RESULTS Fagopyrum tataricum complex prescription (FTCP) was close or super to glyburide on relieving symptoms, preventing obesity, decreasing blood glucose level, improving insulin-sensitivity and blood stasis symptoms. FTCP could also prevent chronic complication of diabetes. No toxicity or side effect of FTCP was found.
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Affiliation(s)
- T Gao
- Hubei College of Traditional Chinese Medicine, Wuhan 430061
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Walter J, You Q, Hagstrom JN, Sands M, High KA. Successful expression of human factor IX following repeat administration of adenoviral vector in mice. Proc Natl Acad Sci U S A 1996; 93:3056-61. [PMID: 8610167 PMCID: PMC39760 DOI: 10.1073/pnas.93.7.3056] [Citation(s) in RCA: 109] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Adenoviral vectors can direct high-level expression of a transgene, but, due to a host immune response to adenoviral antigens, expression is of limited duration, and repetitive administration has generally been unsuccessful. Exposure to foreign proteins beginning in the neonatal period may alter or ablate the immune response. We injected adult and neonatal (immunocompetent) CD-1 mice intravenously with an adenoviral vector expressing human blood coagulation factor IX. In both groups of mice, expression of human factor IX persisted for 12-16 weeks. However, in mice initially injected as adults, repeat administration of the vector resulted in no detectable expression of the transgene, whereas in mice initially injected in the neonatal period, repeat administration resulted in high-level expression of human factor IX. We show that animals that fail to express the transgene on repeat administration have developed high-titer neutralizing antibodies to adenovirus, whereas those that do express factor IX have not. This experimental model suggests that newborn mice can be tolerized to adenoviral vectors and demonstrates that at least one repeat injection of the adenoviral vector is possible; the model will be useful in elucidating the immunologic mechanisms underlying successful repeat administration of adenoviral vectors.
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Affiliation(s)
- J Walter
- Children's Hospital of Phildelphia, PA 19104, USA
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Abstract
The effects of a series of point mutations within the Xenopus borealis somatic-type 5S RNA gene on transcription factor IIIA (TFIIIA) binding affinity were quantified. These data define a critical sequence-dependent contact region within the classical box C promoter element from base pair 80 to 91. Substitution of GC base pairs at positions 81, 85, 86, 89, and 91 significantly reduce TFIIIA binding affinity. Base pairs located at other positions within the box C contact region provide a moderate contribution to TFIIIA-5S gene interaction. In contrast to the extensive set of sequence contacts within the box C element, TFIIIA interaction is localized primarily to two GC base pairs at positions 70 and 71 within the intermediate promoter element. A selected amplification and binding assay (SAAB) was performed with a synthetic internal control region (ICR) randomized from base pair 78 to 95 to identify box C promoter sequences bound with high affinity by TFIIIA. The wild-type 5S RNA gene sequence from 79 to 92 is strongly selected. These results are consistent with the critical role of the box C element in sequence-dependent promoter recognition by TFIIIA.
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Affiliation(s)
- N Veldhoen
- Department of Biochemistry and Microbiology, University of Victoria, British Columbia, Canada
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