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Zhao Y, Wang H, Yang K, Lin JR, Quan X, Qu R, Zhao SH. [Analysis of conventional echocardiographic features in apical hypertrophic cardiomyopathy patients complicated with left ventricular apical aneurysm]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:1075-1079. [PMID: 37859360 DOI: 10.3760/cma.j.cn112148-20230815-00079] [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: 10/21/2023]
Abstract
Objective: To explore the basic characteristics of conventional echocardiography of apical hypertrophic cardiomyopathy (ApHCM) patients complicating with left ventricular apical aneurysm (LVAA). Methods: This is a retrospective study. Patients who underwent echocardiography and cardiac magnetic resonance (CMR) and were diagnosed with ApHCM complicated with LVAA by CMR at Fuwai Hospital, Chinese Academy of Medical Sciences from August 2012 to July 2017 were enrolled. According to whether LVAA was detected by echocardiography, the enrolled patients were divided into two groups: LVAA detected by echocardiography group and LVAA not detected by echocardiography group. Clinical data of the two groups were compared to analyze the causes of missed diagnosis by echocardiography. Results: A total of 21 patients were included, of whom 67.0% (14/21) were males, aged (56.1±16.5) years. Patients with chest discomfort accounted for 81.0% (17/21), palpitation 38.1% (8/21), syncope 14.3% (3/21). ECG showed that 21 (100%) patients had ST-T changes and 18 (85.7%) had deep T-wave invertion. Echocardiography revealed ApHCM in 17 cases (81.0%) and LVAA in 7 cases (33.3%). The mean left ventricular apical aneurysm diameter was 33.0 (18.0, 37.0) mm, and left ventricular ejection fraction was (66.5±6.6) %, and left ventricular apex thickness was (21.0±6.3) mm. Left ventricular outflow tract obstruction was presented in 4 cases and middle left ventricular obstruction in 10 cases. The mean left ventricular apical aneurysm diameter of LVAA detected by echocardiography was greater than that of LVAA not detected by echocardiography (25.0 (18.0, 28.0) mm vs. 16.0 (12.3, 21.0) mm, P=0.006). Conclusions: Conventional echocardiography examination has certain limitations in the diagnosis of ApHCM. Smaller LVAA complicated with ApHCM is likely to be unrecognized by echocardiography. Clinicians should improve their understanding of this disease.
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Affiliation(s)
- Y Zhao
- Department of Echocardiography Cardiovascular Institute, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - H Wang
- Department of Echocardiography Cardiovascular Institute, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - K Yang
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beigjing 100037, China
| | - J R Lin
- Department of Echocardiography Cardiovascular Institute, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - X Quan
- Department of Echocardiography Cardiovascular Institute, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - R Qu
- Department of Echocardiography Cardiovascular Institute, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - S H Zhao
- Department of Magnetic Resonance Imaging, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beigjing 100037, China
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Ding S, Deng Y, Wu M, Qu R, Du Z, Chu W. Leaching of organic matter and iodine, formation of iodinated disinfection by-products and toxic risk from Laminaria japonica during simulated household cooking. J Hazard Mater 2023; 459:132241. [PMID: 37567136 DOI: 10.1016/j.jhazmat.2023.132241] [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] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/16/2023] [Accepted: 08/05/2023] [Indexed: 08/13/2023]
Abstract
Iodinated disinfection by-products (I-DBPs) exhibited potential health risk owing to the high toxicity. Our recent study demonstrated that I-DBPs from Laminaria japonica (Haidai), the commonly edible seaweed, upon simulated household cooking condition were several hundred times more than the concentration of drinking water. Here, the characterization of Haidai and its leachate tandem with the formation, identification and toxicity of I-DBPs from the cooking of Haidai were systemically investigated. The dominant organic matter in Haidai leachate were polysaccharides, while the highest iodine specie was iodide (∼90% of total iodine). Several unknown I-DBPs generated from the cooking of Haidai were tentatively proposed, of which 3,5-diiodo-4-hydroxybenzaldehyde was dominant specie. Following a simulated household cooking with real chloraminated tap water, the presence of Haidai sharply increased aggregate iodinated trihalomethanes, iodinated haloacetic acids, and total organic iodine concentrations to 97.4 ± 7.6 μg/L,16.4 ± 2.1 μg/L, and 0.53 ± 0.06 mg/L, respectively. Moreover, the acute toxicity of Haidai soup to Vibrio qinghaiensis sp.-Q67 was around 7.3 times higher than that of tap water in terms of EC50. These results demonstrated that the yield of I-DBPs from the cooking of Haidai and other seaweed should be carefully considered.
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Affiliation(s)
- Shunke Ding
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Yang Deng
- Department of Earth and Environmental Studies, Montclair State University, Montclair, NJ 07043, USA
| | - Menglin Wu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Ruixin Qu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Zhenqi Du
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China
| | - Wenhai Chu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China.
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Strickland G, Qu R, Gupta K, Jiang Y, Dong D, Saez C, Weng P, Taketo M, Klugar Y, Myung P. 704 Decomposing a deterministic path to hair follicle dermal niche formation: The intersection of two morphogen gradients. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.716] [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: 10/17/2022]
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Ren J, Qu R, Rahman N, Lewis J, King A, Liao X. LB884 Integrated transcriptome and trajectory analysis of cutaneous T-cell lymphoma identifies putative precancer populations. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.900] [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: 10/17/2022]
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Wang P, Ding S, An G, Qu R, Liu X, Fang C, Chu W. Removal of disinfection by-product precursors by Al-based coagulants: A comparative study on coagulation performance. J Hazard Mater 2021; 420:126558. [PMID: 34329112 DOI: 10.1016/j.jhazmat.2021.126558] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 06/07/2021] [Accepted: 07/01/2021] [Indexed: 06/13/2023]
Abstract
Coagulation is well-established for controlling regulated disinfection by-products (DBPs), but its effectiveness for controlling unregulated DBPs remains unclear. The efficiency of coagulation in controlling unregulated DBPs requires clarification owing to their relatively high toxicity. In this study, three Al-based coagulants, aluminum sulfate (Alum), polyaluminum chloride (PAC), and a novel type of covalently bond hybrid coagulant (CBC, synthesized using AlCl3) were selected, and the coagulation performance of these Al-based coagulants in controlling DBPs and DBP-associated toxicity was compared over 5 classes of DBPs, including trihalomethanes, haloacetic acids, haloacetaldehydes, haloacetonitriles, and halonitromethanes. The results showed that Alum was the least efficient in removing DBP precursors among the three coagulants. The effectiveness of CBC and PAC for DBP control varied with the characteristics of source waters. CBC had an advantage in water with a low content of humic acids, and reduced DBP concentration and DBP-associated toxicity by 47% and 25%, respectively. For water rich in aromatic organics, CBC might serve as DBP precursors at a high-required dosage, suggesting that a trade-off between enhanced DBP control and serving as DBP precursors should be considered for CBC coagulation; PAC achieved the most reduction in DBP concentration and DBP-associated toxicity by 50% and 34%, respectively.
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Affiliation(s)
- Pin Wang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Ministry of Education Key Laboratory of Yangtze River Water Environment, Tongji University, Shanghai 200092, China; International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai 200092, China
| | - Shunke Ding
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Ministry of Education Key Laboratory of Yangtze River Water Environment, Tongji University, Shanghai 200092, China; International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai 200092, China
| | - Guangyu An
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Ruixin Qu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Ministry of Education Key Laboratory of Yangtze River Water Environment, Tongji University, Shanghai 200092, China; International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai 200092, China
| | - Xiaoyu Liu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Ministry of Education Key Laboratory of Yangtze River Water Environment, Tongji University, Shanghai 200092, China; International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai 200092, China
| | - Chao Fang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Ministry of Education Key Laboratory of Yangtze River Water Environment, Tongji University, Shanghai 200092, China; International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai 200092, China
| | - Wenhai Chu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China; Ministry of Education Key Laboratory of Yangtze River Water Environment, Tongji University, Shanghai 200092, China; International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai 200092, China.
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Xu X, Qu R, Wu W, Jiang C, Shao D, Shi J. Applications of microbial co-cultures in polyketides production. J Appl Microbiol 2020; 130:1023-1034. [PMID: 32897644 DOI: 10.1111/jam.14845] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 05/29/2020] [Revised: 07/28/2020] [Accepted: 08/31/2020] [Indexed: 12/21/2022]
Abstract
Polyketides are a large group of natural biomolecules that are normally produced by bacteria, fungi and plants. These molecules have clinical importance due to their anti-cancer, anti-microbial, anti-oxidant and anti-inflammatory properties. Polyketides are biosynthesized from units of acyl-CoA by different polyketide synthases (PKSs), which display wide diversity of functional domains and mechanisms of action between fungi and bacteria. Co-culture of different micro-organisms can produce novel products distinctive from those produced during single cultures. This study compared the new polyketides produced in such co-culture systems and discusses aspects of the cultivation systems, product structures and identification techniques. Current results indicate that the formation of new polyketides may be the result of activation of previously silent PKSs genes induced during co-culture. This review indicated a potential way to produce pure therapeutic polyketides by microbial fermentation and a potential way to develop functional foods and agricultural products using co-co-culture of different micro-organisms. It also pointed out a new perspective for studies on the process of functional foods, especially those involving multiple micro-organisms.
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Affiliation(s)
- X Xu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - R Qu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - W Wu
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - C Jiang
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - D Shao
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
| | - J Shi
- Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, China
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Li T, Zhang Y, Gui B, Gao K, Zhao Q, Qu R, Liu T, Hoffmann M, Staaks C, Dong B. Application of coagulation-ultrafiltration-nanofiltration in a pilot study for Tai Lake water treatment. Water Environ Res 2020; 92:579-587. [PMID: 31560133 DOI: 10.1002/wer.1247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 09/10/2019] [Accepted: 09/21/2019] [Indexed: 06/10/2023]
Abstract
In this study, the inline coagulation was combined with ultrafiltration and nanofiltration (UF-NF) in a pilot study for Tai Lake water treatment. The results showed that the combination process was very effective for Tai Lake water treatment in terms of organic removal and membrane fouling control. With inline coagulation, no irreversible membrane fouling was observed for either UF or NF at fluxes of 65-90 and 22-26 L/(m2 hr), respectively. The membrane foulants were analyzed, and the results indicated that the low molecular weight fractions in the feed were main membrane fouling contributors for both UF and NF, where hydrophilic substances and proteins, as well as neutral substances and humic acids with polycarboxyl groups, contributed significantly to UF and NF membrane fouling, respectively. Compared with direct UF-NF filtration without coagulation, the coagulants could aggregate organic micromolecules for cake formation. With inline coagulation, the moving flocs could generate shear stress to scrub the membrane surface for fouling control of UF. Moreover, with inline coagulation, the organics removal efficiency could be further increased by 10%-20%. With NF, the permeate had a TOC concentration of less than 0.5 mg/L, satisfying the drinking water quality. Therefore, the coagulation-UF-NF is very useful for Tai Lake water treatment. PRACTITIONER POINTS: Inline coagulation-UF-NF for Tai Lake Water treatment is implemented. Inline coagulation can aggregate hydrophilic substances to reduce membrane fouling. Moving flocs produce shear stress for fouling control of UF-NF. Superior quality of permeate is achieved with the combined coagulation-UF-NF process.
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Affiliation(s)
- Tian Li
- College of Environmental Science and Engineering, Tongji University, Shanghai, China
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, China
- International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai, China
| | - Yunlu Zhang
- College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Bo Gui
- College of Environmental Science and Engineering, Tongji University, Shanghai, China
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, China
| | - Kuo Gao
- College of Environmental Science and Engineering, Tongji University, Shanghai, China
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, China
| | - Qingqing Zhao
- College of Environmental Science and Engineering, Tongji University, Shanghai, China
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, China
| | - Ruixin Qu
- College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | - Tuodong Liu
- College of Environmental Science and Engineering, Tongji University, Shanghai, China
| | | | | | - Bingzhi Dong
- College of Environmental Science and Engineering, Tongji University, Shanghai, China
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai, China
- International Joint Research Center for Sustainable Urban Water System, Tongji University, Shanghai, China
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Wu Y, Li Z, Yu F, Chen D, Jiang F, Qu R, Xue H, Bo J. Comparison of long-term outcomes of laparoscopic and open sphincter-preserving total mesorectal excision for low rectal cancer. J BUON 2020; 25:899-906. [PMID: 32521884] [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: 06/11/2023]
Abstract
PURPOSE The purpose of this study was to compare the long-term outcomes of laparoscopic and open sphincter-preserving total mesorectal excision (TME) for low rectal cancer (LRC) using propensity score matching (PSM). METHODS The clinical and follow-up data of 169 patients with LRC who underwent sphincter-preserving TME at our institution between January 2011 and January 2014 were retrospectively analyzed. Patients were divided into laparoscopic and open group based on the surgical approach. PSM including age, sex, body mass index, clinical stage, and American Society of Anesthesiologists score with a 1:1 ratio was subsequently performed. Sixty-eight patients in each group were ultimately included, and short- and long-term outcomes were compared between groups. RESULTS Compared with the open group, the laparoscopic group had less intraoperative blood loss, more rapid postoperative recovery, and lower incidence of 30-day postoperative complications. However, there were no significant differences in severity of postoperative 30-day complications between the two groups. Both groups had no intraoperative or 30-day postoperative mortality. Regarding survival outcome, tumor recurrence rate, tumor recurrence site, 5-year overall survival, and 5-year disease-free survival, there were no significant differences between groups. CONCLUSION Laparoscopic sphincter-preserving TME can achieve long-term outcomes similar to those of open TME for LRC.
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Affiliation(s)
- Yaoqiang Wu
- Department of General Surgery, First Hospital of Dandong, Dandong, Liaoning Province, People's Republic of China
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Xie YB, Zhang JY, DU ML, Meng FP, Fu JL, Liu LM, Wang SS, Qu R, Lian F, Qiao F, Chen YL, Gao YY, Xu RN, Shi M, Wang FS. [Efficacy and peripheral immunity analysis of allogeneic natural killer cells therapy in patients with hepatocellular carcinoma]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:591-595. [PMID: 31209436 DOI: 10.19723/j.issn.1671-167x.2019.03.032] [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: 11/20/2022]
Abstract
OBJECTIVE To evaluate the safety and efficacy of allogeneic natural killer (NK) cells in the treatment of primary hepatocellular carcinoma (HCC), and to elucidate the mechanism of NK cells therapy. METHODS Twenty-one patients with primary HCC treated with allogeneic NK cells at the Fifth Medical Center of the PLA General Hospital were followed up for 1 year. Peripheral blood mononuclear cells (PBMCs) were isolated from patient-related donors and cultured in vitro for 15 days and infused to the patients in two consecutive days. Clinical data and laboratory data were collected and analyzed, including survival, clinical features, imaging changes, hematology, immunology, and biochemical indicators to evaluate the safety and efficacy of allogeneic NK cell therapy. The changes of peripheral blood lymphocyte subsets after treatment were also analyzed to explore the possible anti-tumor mechanisms. RESULTS (1) Of the 21 patients with primary HCC, 11 patients were treated once, 5 patients were treated twice, and 5 patients were treated 3 times. After allogeneic NK cells infusion, 10 patients had fever, 1 patient had slight hepatalgia and 1 patient had slight headache, no other adverse events occurred including acute and chronic graft-versus-host disease (GVHD). They resolved spontaneously within 8 hours without other treatment. (2) The total disease control rate was 76.2% during one-year follow-up. Among them, the patients with Barcelona clinic liver cancer (BCLC) stage A had a disease control rate of 100%, stable disease (SD) in 10 cases; BCLC stage B patients had a disease control rate of 60%, partial response (PR) in 1 case, and SD 2 in cases; BCLC stage C patients had a disease control rate of 50%, complete response (CR) in 1 case, and 2 cases of PR. (3) The frequencies of NK cells and CD8+ T cells in peripheral blood were significantly lower than that before at 24 hours after treatment, and the frequencies of CD4+ T cells and CD4/CD8 were significantly higher than the baseline. CONCLUSION Allogeneic NK cells have good safety and efficacy in the treatment of primary HCC. The anti-tumor effect of the allogeneic NK cells may play an important role in the activation of the patient's natural immune system and delay disease progression, suggesting that allogeneic NK cells combined with sorafenib may be a very effective treatment for advanced HCC, and further large-sample multicenter randomized controlled clinical trials are needed to validate this result.
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Affiliation(s)
- Y B Xie
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - J Y Zhang
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - M L DU
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - F P Meng
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - J L Fu
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - L M Liu
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - S S Wang
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - R Qu
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - F Lian
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - F Qiao
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Y L Chen
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Y Y Gao
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - R N Xu
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - M Shi
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - F S Wang
- Institute of Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
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Jiang Q, Ji L, Qiu Y, Su X, Guo M, Zhong S, Yang Z, Zhang Z, Qu R, Bian R, Chen C, Meng L, Zhuo Z, Tan W, Takiff HE, Yu W, Gao Q. A randomised controlled trial of stepwise sputum collection to increase yields of confirmed tuberculosis. Int J Tuberc Lung Dis 2019; 23:685-691. [PMID: 31315700 DOI: 10.5588/ijtld.18.0524] [Citation(s) in RCA: 5] [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: 11/10/2022] Open
Abstract
<sec> <title>SETTING</title> The proportion of bacteriologically confirmed tuberculosis (TB) in China has decreased far below the worldwide average. </sec> <sec> <title>OBJECTIVE</title> To investigate whether stepwise measures to ensure sputum quality can improve the rate of bacteriologically confirmed TB. </sec> <sec> <title>DESIGN</title> We enrolled 980 adults with suspected TB from three counties in China during 2017 for this multicentre randomised controlled trial. Half the participants (n = 490) were randomly assigned to intervention groups that received instructions by a study nurse, and sputum induction, if necessary. In the remaining 490 patients, sputum samples were collected without observation. The primary outcome was the proportion of patients detected as bacteriologically positive on smear, culture or molecular assays (EasyNAT or Xpert). </sec> <sec> <title>RESULTS</title> Bacteriological confirmation rates were significantly higher in the intervention than in the control group: overall (159/490 [32%] vs. 122/490 [25%]; P = 0.009); confirmation using smear (17% vs. 11%; P = 0.010); confirmation using culture (28% vs. 21%; P = 0.021); and confirmation using molecular assays (27% vs. 18%; P = 0.001). Most of the improvement was in patients who received instruction alone, while improvement was greatest in younger patients (adjusted odds ratio 1.27, 95%CI 1.05-1.53 per 10 years). </sec> <sec> <title>CONCLUSIONS</title> If implemented effectively in resource-limited primary care clinics, our simple stepwise procedure combining instruction and sputum induction could increase the proportion of bacteriologically confirmed TB significantly. </sec>.
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Affiliation(s)
- Q Jiang
- Shenzhen Center for Chronic Disease Control, Shenzhen, Key Laboratory of Medical Molecular Virology, School of Basic Medical Sciences and Shanghai Public Health Clinical Center, Fudan University, Shanghai
| | - L Ji
- Shenzhen Center for Chronic Disease Control, Shenzhen
| | - Y Qiu
- Wusheng County Center for Disease Control and Prevention, Wusheng, Guangan
| | - X Su
- Wuchang City Center for Tuberculosis Control and Prevention, Wuchang, Harbin, China
| | - M Guo
- Wusheng County Center for Disease Control and Prevention, Wusheng, Guangan
| | - S Zhong
- Wuchang City Center for Tuberculosis Control and Prevention, Wuchang, Harbin, China
| | - Z Yang
- Shenzhen Center for Chronic Disease Control, Shenzhen
| | - Z Zhang
- Wusheng County Center for Disease Control and Prevention, Wusheng, Guangan
| | - R Qu
- Wusheng County Center for Disease Control and Prevention, Wusheng, Guangan
| | - R Bian
- Wuchang City Center for Tuberculosis Control and Prevention, Wuchang, Harbin, China
| | - C Chen
- Wuchang City Center for Tuberculosis Control and Prevention, Wuchang, Harbin, China
| | - L Meng
- Shenzhen Center for Chronic Disease Control, Shenzhen
| | - Z Zhuo
- Shenzhen Center for Chronic Disease Control, Shenzhen
| | - W Tan
- Shenzhen Center for Chronic Disease Control, Shenzhen
| | - H E Takiff
- Integrated Mycobacterial Pathogenomics Unit, Institut Pasteur, Paris, France, Nanshan Center for Chronic Disease Control, Shenzhen, China
| | - W Yu
- Shenzhen Center for Chronic Disease Control, Shenzhen
| | - Q Gao
- Shenzhen Center for Chronic Disease Control, Shenzhen, Key Laboratory of Medical Molecular Virology, School of Basic Medical Sciences and Shanghai Public Health Clinical Center, Fudan University, Shanghai
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Huo JL, Qu R, Guo YM, Chen C. [Endoscopic selective lateral neck dissection via a chest-breast approach for papillary thyroid carcinoma: preliminary experience in 20 cases]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:346-350. [PMID: 30970407 DOI: 10.13201/j.issn.1001-1781.2019.04.014] [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] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Indexed: 11/12/2022]
Abstract
Objective:To explore the feasibility of endoscopic selective lateral neck dissection(SLND) via a chest-breast approach.Method:We retrospectively reviewed 20 patients who underwent endoscopic total thyroidectomy along with SLND, between January 2017 and May 2018. Result: All the 20 patients underwent total thyroidectomy, central lymph nodes dissection and selective lateral lymph nodes dissection with endoscopic surgery via chest-breast approach. In this study, lymphatic leakage, transient voice hoarseness, internal jugular vein injury and external jugular vein injury were repectively found in one patient, and 4 patients suffered from transient parathyroid hypofunction, without other serious complications.Conclusion: Endoscopic lymph node dissection including levels Ⅱ,Ⅲ and Ⅳ is feasible. It has good cosmetic effect, and haven't serious adverse events.
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Affiliation(s)
- J L Huo
- Department of Breast and Thyroid Surgery, the First People's Hospital of Zunyi, Zunyi, 563000, China
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Guo YM, Huo JL, Qu R, Hu XC, Liu DS, Chen ZY, Hong W. [A comparison of fine needle nonaspiration cytology versus fine needle aspiration for thyroid nodules: a Meta-analysis]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:868-872. [PMID: 29921061 DOI: 10.13201/j.issn.1001-1781.2018.11.017] [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] [Received: 02/23/2018] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the differences of smear quality and diagnostic accuracy between thyroid nodules and fine needle nonaspiration cytology (FNNAC) and fine needle aspiration cytology (FNAC).Method:Databases were used to search the literature on FNNAC and FNAC. All statistical analyses were performed using Review Manager 5.3 Software.Result:A total of 10 studies were included in the study. Meta-analysis showed no significant difference in FNNAC and FNAC between low, middle and high quality smears. There was no significant difference in diagnostic accuracy.Conclusion:There were no difference in obtaining the smear quality and diagnostic accuracy, the person doing the piercing can freely choose which way according to the habit.
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Affiliation(s)
- Y M Guo
- Department of Breast and Thyroid Surgery, the Third Affiliated Hospital of Zunyi Medical College, Zunyi, 563000, China
| | - J L Huo
- Department of Breast and Thyroid Surgery, the Third Affiliated Hospital of Zunyi Medical College, Zunyi, 563000, China
| | - R Qu
- Department of Breast and Thyroid Surgery, the Third Affiliated Hospital of Zunyi Medical College, Zunyi, 563000, China
| | - X C Hu
- Department of Breast and Thyroid Surgery, the Third Affiliated Hospital of Zunyi Medical College, Zunyi, 563000, China
| | - D S Liu
- Department of Breast and Thyroid Surgery, the Third Affiliated Hospital of Zunyi Medical College, Zunyi, 563000, China
| | - Z Y Chen
- Department of Breast and Thyroid Surgery, the Third Affiliated Hospital of Zunyi Medical College, Zunyi, 563000, China
| | - W Hong
- Department of Breast and Thyroid Surgery, the Third Affiliated Hospital of Zunyi Medical College, Zunyi, 563000, China
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Huo JL, Guo YM, Qu R, Liu DS, Chen ZY, Hong W. [Diagnostic accuracy and safety of US-guided core needle biopsy versus fine needle aspiration biopsy of thyroid nodules: a Meta analysis]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1103-1107. [PMID: 29798251 DOI: 10.13201/j.issn.1001-1781.2017.14.013] [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] [Received: 03/22/2017] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the efficacy and safety of core needle biopsy (CNB) and fine neon needle aspiration biopsy (FNAB) in the diagnosis of thyroid nodules.Method:The CNKI, Wanfang database, China Biomedical Literature Database (CBM), PubMed, Cochrane Library, EMBASE, Web of Science database (the deadline of February 2017) were used to search the literature on CNB and FNABCNB. Two reviewers independently screened the literature according to the inclusion and exclusion criteria, extracted the data and evaluated the quality of the literature, and used RevMan 5.3 software for Meta analysis.Result:The accuracy of the CNB group was higher than that of the FNAB group(RR= 1.14, 95%CI: 1.06-1.22, P< 0.01). Meta analysis showed that the accuracy of CNB group compared with FNAB group was statistically significant the difference was statistically significant. There was no significant difference between the two groups (RR= 0.92, 95%CI:0.67-1.25, P> 0.05).Conclusion:CNB is safe and feasible in the diagnosis of thyroid nodules under the condition of mastery of puncture technique.
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Affiliation(s)
- J L Huo
- Department of Breast and Thyroid Surgery, the First People's Hospital of Zunyi, Zunyi, 563000, China
| | - Y M Guo
- Department of Breast and Thyroid Surgery, the First People's Hospital of Zunyi, Zunyi, 563000, China
| | - R Qu
- Department of Breast and Thyroid Surgery, the First People's Hospital of Zunyi, Zunyi, 563000, China
| | - D S Liu
- Department of Breast and Thyroid Surgery, the First People's Hospital of Zunyi, Zunyi, 563000, China
| | - Z Y Chen
- Department of Breast and Thyroid Surgery, the First People's Hospital of Zunyi, Zunyi, 563000, China
| | - W Hong
- Department of Breast and Thyroid Surgery, the First People's Hospital of Zunyi, Zunyi, 563000, China
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Dai T, Wu X, Liu J, Qu R, Li D. P2.193 Ocular Syphilis in HIV-Negative Patients. Br J Vener Dis 2013. [DOI: 10.1136/sextrans-2013-051184.0457] [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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Ko S, Zhang S, Qu R, Chen X, Sullivan M. 125 POSTER The antineoplastic activities of a novel oral formulation of interleukin-2 (IL-2). EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72057-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Liu C, Chen X, Jin Y, Qu R, Jiang PF, Wen GM, Tang ZH. Effects of calcitonin gene-related peptide on apoptosis of peripheral blood mononuclear cells from patients with systemic lupus erythematosus. Clin Exp Dermatol 2007; 32:650-3. [PMID: 17725664 DOI: 10.1111/j.1365-2230.2007.02518.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Systemic lupus erythematosus (SLE) is an autoimmune disease with abnormal apoptosis and autoantibody production. Calcitonin gene-related peptide (CGRP) is a neuropeptide produced by the central and peripheral nervous systems and by endocrine cells. It can influence cell death in thymocytes and cultured smooth muscle cells, and inhibits the production of interleukin (IL)-2, which inhibits apoptosis. AIMS To investigate the effects of calcitonin gene-related peptide (CGRP) on apoptosis of peripheral blood mononuclear cells (PBMCs) from patients with SLE. METHODS The percentage of apoptosis of PBMCs from patients with SLE and healthy blood donors were examined using annexin-V/propidine iodide staining 48 h after culturing with CGRP and/or its receptor antagonist CGRP(8-37) at various concentrations. IL-2 activity in culture supernatants was determined using the incorporation of 3H-TdR by the IL-2-dependent cell line CTLL and evaluated by ELISA. RESULTS The percentage of spontaneous apoptosis of PBMCs from patients with SLE was higher than that of healthy blood donors (34.18 +/- 2.86 vs. 18.23 +/- 0.81, P < 0.001). CGRP, at all tested concentrations, had no effect on apoptosis of PBMCs from healthy blood donors, but significantly inhibited apoptosis of PBMCs from patients with SLE at concentrations of >or= 0.5 x 10(-8) mol/L (0.5 x 10(-8) mol/L: 32.01 +/- 3.98 vs. 34.18 +/- 2.86, P < 0.05; 1.0 x 0(-8) mol/L: 26.76 +/- 2.69 vs. 34.18 +/- 2.86, P < 0.001; 1.5 x 10(-8) mol/L: 25.97 +/- 2.65 vs. 34.18 +/- 2.86, P < 0.001), and the effect plateaued at 1.0 x 10(-8) mol/L, at which level inhibition was not significantly increased with increasing concentration. However, CGRP, at any concentration tested, could not reduce the rate of apoptosis of PBMCs from patients with SLE to the normal range. There were significant positive relationships between the effect of CGRP, on apoptosis of PBMCs and SLE Disease Activity Index (0.5 x 10(-8) mol/L: r(s) = 0.328, P < 0.05; 1.0 x 10(-8) mol/L: r(s) = 0.431, P < 0.01; 1.5 x 10(-8) mol/L: r(s) = 0.419, P < 0.01). CGRP(8-37) itself had no effect on apoptosis, but was able to block the effects of CGRP on PBMCs (0.5 x 10(-8) mol/L: 32.01 +/- 3.98 vs. 33.12 +/- 2.37, P < 0.05; 1.0 x 10(-8) mol/L: 26.76 +/- 2.69 vs. 34.73 +/- 2.32, P < 0.001; 1.5 x 10(-8) mol/L: 25.97 +/- 2.65 vs. 35.25 +/- 3.37, P < 0.001). There was no effect of CGRP on IL-2 production. CONCLUSIONS These results indicate that CGRP plays an important role in the apoptosis of PBMCs from patients with SLE via its receptor; low plasma levels of CGRP may cause accelerated apoptosis. This regulation does not seem to be related to IL-2.
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Affiliation(s)
- C Liu
- Department of Dermatology, Affiliated Hospital of Yunyang Medical College, Shiyan, China.
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Li L, Qu R. Development of highly regenerable callus lines and biolistic transformation of turf-type common bermudagrass [Cynodon dactylon (L.) Pers.]. Plant Cell Rep 2004; 22:403-407. [PMID: 14520498 DOI: 10.1007/s00299-003-0706-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2003] [Revised: 06/26/2003] [Accepted: 06/28/2003] [Indexed: 05/24/2023]
Abstract
Common bermudagrass, Cynodon dactylon, is a widely used warm-season turf and forage species in the temperate and tropical regions of the world. Improvement of bermudagrass via biotechnology depends on improved tissue culture responses, especially in plant regeneration, and a successful scheme to introduce useful transgenes. When the concentration of 6-benzylaminopurine was adjusted in the culture medium, yellowish, compact calluses were observed from young inflorescence tissue culture of var. J1224. Nine long-term, highly regenerable callus lines (including a suspension-cultured line) were subsequently established, of which six were used for biolistic transformation. Five independent transgenic events, with four producing green plants, were obtained following hygromycin B selection from one callus line. Three transgenic events displayed resistance to the herbicide glufosinate, and one of these showed beta-glucuronidase activity since the co-transformation vector used in the experiments contained both the gusA and bar genes.
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Affiliation(s)
- L Li
- Department of Crop Science, North Carolina State University, Raleigh, NC 27695-7620, USA
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Ogura M, Shibata T, Qu R, Liu J, Yi J, Hiraoka M. A tumor-specific gene therapy for renal cell carcinomas using a hypoxia-responsive vector system. Int J Radiat Oncol Biol Phys 2003. [DOI: 10.1016/s0360-3016(03)01238-0] [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: 10/27/2022]
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Sharp GL, Martin JM, Lanning SP, Blake NK, Brey CW, Sivamani E, Qu R, Talbert LE. Field Evaluation of Transgenic and Classical Sources of Wheat streak mosaic virus Resistance. Crop Sci 2002; 42:105-110. [PMID: 11756260 DOI: 10.2135/cropsci2002.1050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The development of wheat (Triticum aestivum L.) cultivars that are resistant to Wheat streak mosaic virus (WSMV), yet competitive in yield under nondiseased conditions, is an objective for breeding programs in the Great Plains. This field study was conducted to compare classical and transgenic sources of resistance to WSMV. Three sets of germplasm were evaluated. These included adapted cultivars with various levels of tolerance, transgenic wheat lines containing viral coat protein or replicase sequences from WSMV that showed resistance in greenhouse trials, and germplasm with resistance to WSMV due to a translocated segment of chromosome 4Ai-2 from Thinopyrum intermedium (Host) Barkworth and Dewey containing Wsm1. A replicated field trial was conducted at Bozeman, MT, over a two-year period to evaluate the effectiveness of these different sources of resistance to mechanical inoculation of WSMV. Adapted cultivars differed in their ability to tolerate WSMV with mean reductions in yield over the two years ranging from 41 to 74%. Incorporation of the replicase or coat protein gene from WSMV did not provide field resistance to viral infection and in general, transgenic lines yielded less than their parent cultivar, 'Hi-Line'. Wheat-Thinopyrum lines positive for a DNA marker linked to the Wsm1 gene had significantly reduced yield losses ranging from 5 to 39% compared with yield losses of 57 to 88% in near isogenic lines not having the Wsm1 gene. Yield of lines with Wsm1 in the absence of disease ranged from 11 to 28% less than yield of lines without Wsm1. Our results suggest Wsm1 provides the best source of WSMV resistance but a yield penalty may exist because of the presence of the translocation.
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Affiliation(s)
- G. L. Sharp
- Dep. of Plant Sciences and Plant Pathology, Montana State University, Bozeman, MT 59717
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20
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Liu C, Zhou H, Qu R, Liu Z. Effects of sex hormones on apoptosis in peripheral blood mononuclear cells from patients with systemic lupus erythematosus. Chin Med J (Engl) 2001; 114:291-3. [PMID: 11780316] [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: 02/23/2023] Open
Abstract
OBJECTIVE To study the effects of dehydroepiandrosterone (DHEA) and/or estradiol (E2) on apoptosis in peripheral blood mononuclear cells (PBMCs) from patients with systemic lupus erythematosus (SLE). METHODS The percentage of apoptosis of PBMCs from SLE patients and healthy blood donors were examined by means of AO staining 48 h after culture with DHEA and/or E2 at physiologic or pathologic concentrations. RESULTS The percentage apoptosis of PBMCs from SLE patients is higher than that of healthy blood donors (P < 0.01). E2, whether at physiological or at pathological concentrations, had no effects no apoptosis of PBMCs from both SLE patients and healthy donors (P > 0.05). Both DHEA and DHEA plus E2 at physiologic concentrations, had no effect on apoptosis of PBMCs from healthy donors (P > 0.05), but significantly inhibited that of SLE patients (P < 0.05); at pathologic concentrations, they promoted apoptosis of PBMCs from SLE patients as well as healthy blood donors (P < 0.05). There were no significant differences between the effects of DHEA and that of DHEA plus E2 (P > 0.05). CONCLUSION DHEA plays an important role in the apoptosis of PBMCs from SLE patients; low serum levels of DHEA may cause accelerated apoptosis.
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Affiliation(s)
- C Liu
- Department of Dermatology, Affiliated Taihe Hospital, Yunyang Medical College, Shiyan 442000, China
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Sivamani E, Bahieldin1 A, Wraith JM, Al-Niemi T, Dyer WE, Ho TD, Qu R. Improved biomass productivity and water use efficiency under water deficit conditions in transgenic wheat constitutively expressing the barley HVA1 gene. Plant Sci 2000; 155:1-9. [PMID: 10773334 DOI: 10.1016/s0168-9452(99)00247-2] [Citation(s) in RCA: 170] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The ABA-responsive barley gene HVA1, a member of group 3 late embryogenesis abundant (LEA) protein genes, was introduced into spring wheat (Triticum aestivum L.) cv. Hi-Line using the biolistic bombardment method. High levels of expression of the HVA1 gene, regulated by the maize ubi1 promoter, were observed in leaves and roots of independent transgenic wheat plants and were inherited by offspring generations. T(3) progenies of four selected transgenic wheat lines were tested under greenhouse conditions for tolerance of soil water deficit. Potted plants were grown under moderate water deficit and well-watered conditions, respectively. Two homozygous and one heterozygous transgenic lines expressing the HVA1 gene had significantly (P<0.01) higher water use efficiency values, 0.66-0.68 g kg(-1), as compared to 0.57 and 0.53 g kg(-1), respectively, for the non-expressing transgenic and non-transgenic controls under moderate water deficit conditions. The two homozygous transgenic plant lines also had significantly greater total dry mass, root fresh and dry weights, and shoot dry weight compared to the two controls under soil water deficit conditions. Results of this study indicate that growth characteristics were improved in transgenic wheat plants constitutively expressing the barley HVA1 gene in response to soil water deficit.
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Burke E, MacCarthy B, Petrovic S, Qu R. Structured cases in case-based reasoning—re-using and adapting cases for time-tabling problems. Knowl Based Syst 2000. [DOI: 10.1016/s0950-7051(00)00057-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Finn AF, Kaplan AP, Fretwell R, Qu R, Long J. A double-blind, placebo-controlled trial of fexofenadine HCl in the treatment of chronic idiopathic urticaria. J Allergy Clin Immunol 1999; 104:1071-8. [PMID: 10550755 DOI: 10.1016/s0091-6749(99)70091-6] [Citation(s) in RCA: 117] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND Symptoms of chronic idiopathic urticaria (CIU) include relentless itching and painful wheals, which can be physically and psychologically debilitating. Half of all patients with urticaria have angioedema, which is often disfiguring. OBJECTIVE To evaluate the safety and efficacy of fexofenadine HCl for the treatment of CIU symptoms. METHODS In this 4-week, multicenter, placebo-controlled study, 439 patients with moderate to severe pruritus and urticaria received 1 of 4 oral doses of fexofenadine HCl (20, 60, 120, or 240 mg twice a day) or placebo. Patients reflectively assessed (over the previous 12 hours) the severity of pruritus, the number of wheals, and the interference with sleep (7 AM) and normal activities (7 PM) due to urticaria. Efficacy measures included a change from baseline of daily mean pruritus score (MPS), daily mean number of wheals (MNW) score, daily mean total symptom score (MTSS) (ie, the sum of the wheal and pruritus scores), and mean interference with sleep and daily activities due to urticaria. RESULTS All 4 doses of fexofenadine were statistically superior to placebo (P </=.0238) for MPS, MNW score, and MTSS. Patients receiving fexofenadine HCl also experienced significantly less interference with sleep and daily activities than patients receiving placebo (P </=.0001). Efficacy results were similar in the 60-, 120-, and 240-mg groups and were quantitatively better than those in the 20-mg group. Adverse events were mild and occurred with similar incidence in all treatment groups. CONCLUSIONS Fexofenadine HCl is well tolerated and is statistically superior to placebo in reducing signs and symptoms of CIU and in ameliorating interference with sleep and daily activities due to urticaria. Doses of 60 mg twice a day or greater are most effective.
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Affiliation(s)
- A F Finn
- National Urticaria Research and Treatment Center, Allergy and Asthma Centers of Charleston, PA, SC, USA
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Abstract
Fexofenadine HCl (Allegra, Telfast) is approved in the US for twice-daily dosing in the treatment of seasonal allergic rhinitis (SAR). A once-daily dose (already available in some countries outside the US) can improve patient compliance and health outcomes. This multicenter, placebo-controlled, 14-day US study was conducted to compare the safety and effectiveness of once-daily fexofenadine HCl with placebo in the treatment of patients with moderate to severe autumnal SAR symptoms. After a 1-week placebo lead-in, patients received 120 or 180 mg fexofenadine HCl or placebo at 8 A.M. Patients recorded SAR symptom severity scores instantaneously (for the 1 hour before medication; i.e., trough blood levels), and reflectively (for the previous 12 hours) at 8 A.M. and 8 P.M. The primary efficacy measure was change from baseline in average instantaneous 8 A.M. total symptom score (TSS, the sum of individual symptom scores excluding nasal congestion). In 861 intent-to-treat patients, both fexofenadine HCl doses provided significant (p < or = 0.05) improvement in 8 A.M. instantaneous TSS compared with placebo. Similarly, both fexofenadine doses were superior to placebo for reflective TSS assessments (p < or = 0.0012). There were no statistical differences in efficacy between the two fexofenadine doses, though the 180 mg dose showed a trend toward greater symptom relief. Incidence of adverse events was similar between fexofenadine and placebo groups (30.2% and 30.0%, respectively), with headache the most frequently reported adverse event (8.9% and 7.5%, respectively). In conclusion, once-daily fexofenadine HCl, 120 or 180 mg, is safe and effective in the treatment of autumnal SAR.
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Affiliation(s)
- T B Casale
- Nebraska Medical Research Institute, Papillion 68046, USA
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Irwin MW, Mak S, Mann DL, Qu R, Penninger JM, Yan A, Dawood F, Wen WH, Shou Z, Liu P. Tissue expression and immunolocalization of tumor necrosis factor-alpha in postinfarction dysfunctional myocardium. Circulation 1999; 99:1492-8. [PMID: 10086975 DOI: 10.1161/01.cir.99.11.1492] [Citation(s) in RCA: 248] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Tumor necrosis factor-alpha (TNF-alpha) is markedly elevated in advanced heart failure. It is not known whether tissue TNF-alpha is elevated in the common setting of myocardial infarction leading to heart failure and what the source of TNF-alpha is. To determine this, we studied the expression and protein localization of TNF-alpha and its 2 main receptors (TNF-R1/R2) in a rat model of large infarction. METHODS AND RESULTS Male rats were randomized to proximal left anterior descending ligation. The animals were killed on days 1, 3, 10, and 35 after ligation to examine gene expression and protein production of TNF-alpha and TNF-R1/R2 from the infarct, peri-infarct, and contralateral zones of infarcted heart. There was increased TNF-alpha mRNA production throughout the myocardium at day 1, and detectable expression persisted to day 35 after myocardial infarction. The expression of this cytokine is not confined strictly to the infarct or peri-infarct zones but is expressed by cardiac myocytes within the myocardium in the contralateral normal zone. Changes in gene expression are mirrored initially by augmented protein production within the myocytes. Levels of TNF-alpha protein in the infarct and peri-infarct zones rose early to 8- to 10-fold above normal levels and rose to 4- to 5-fold in the contralateral zone. Finally, expression of the TNF-R1 mRNA transcripts was upregulated at days 3 and 10 after ligation in the infarct and peri-infarct zones, suggesting that the signal transduction pathways necessary for TNF-alpha in the heart remain intact as TNF-alpha biosynthesis increases. CONCLUSIONS TNF-alpha is present early in a model of large myocardial infarction and is sustained into the later stage within the myocardium. Expression of this cytokine is not only confined strictly to the infarct or peri-infarct zone but is expressed by cardiac myocytes within the myocardium contralateral to the infarct. Therefore TNF-alpha production forms a part of an important intrinsic myocardial stress response system to injury.
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MESH Headings
- Animals
- Antigens, CD/biosynthesis
- Antigens, CD/genetics
- Blotting, Northern
- Enzyme-Linked Immunosorbent Assay
- Gene Expression Regulation
- Heart Failure/etiology
- Heart Failure/metabolism
- Heart Failure/pathology
- Immunoenzyme Techniques
- In Situ Hybridization
- Male
- Muscle Proteins/biosynthesis
- Muscle Proteins/genetics
- Myocardial Infarction/complications
- Myocardial Infarction/metabolism
- Myocardial Infarction/pathology
- Myocardium/metabolism
- Myocardium/pathology
- RNA, Messenger/biosynthesis
- Rats
- Rats, Sprague-Dawley
- Receptors, Tumor Necrosis Factor/biosynthesis
- Receptors, Tumor Necrosis Factor/genetics
- Receptors, Tumor Necrosis Factor, Type I
- Receptors, Tumor Necrosis Factor, Type II
- Tumor Necrosis Factor-alpha/analysis
- Tumor Necrosis Factor-alpha/biosynthesis
- Tumor Necrosis Factor-alpha/genetics
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Affiliation(s)
- M W Irwin
- Centre for Cardiovascular Research, The Toronto Hospital, Amgen Institute, Ontario Cancer Institute, Ontario, Canada
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Abstract
We discuss a simple simulation method for construction of exact confidence bands, having a pre-assigned confidence level simultaneously for several regression functions which are univariate polynomials in the predictors. This is accomplished by combining and extending existing results in a manner that permits both finite and infinite ranges for individual predictor variables. We illustrate the method for a logistic regression model with both dichotomous and continuous predictors.
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Affiliation(s)
- M R Kosorok
- Department of Statistics, University of Wisconsin-Madison 53792-4675, USA.
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Qu R, Cai L, Mo C. [Uses of nasal lavage in occupational medicine and environmental medicine]. Zhonghua Yu Fang Yi Xue Za Zhi 1998; 32:378-9. [PMID: 10374591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Qu R, Silver MM, Letarte M. Distribution of endoglin in early human development reveals high levels on endocardial cushion tissue mesenchyme during valve formation. Cell Tissue Res 1998; 292:333-43. [PMID: 9560476 DOI: 10.1007/s004410051064] [Citation(s) in RCA: 46] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Endoglin is a component of the receptor complex for transforming growth factor (TGF)-beta1 and TGF-beta3. We analysed its expression by immunohistochemistry in human embryos at 4-8 weeks of gestation and in hearts ranging from 4-13 weeks old. We compared endoglin distribution with that of TGF-beta receptors type I (TbetaR-I), type II (TbetaR-II) and betaglycan. Endoglin was found on endothelial cells in all tissues examined, consistent with its expression in adult blood vessels. TbetaR-I, TbetaR-II and betaglycan were observed on most cell types and had an overall similar pattern of distribution. Endoglin was detected on the endocardium as early as 4 weeks, but was absent from myocardium. It was present at high levels on the endocardial cushion tissue mesenchyme from 5-8 weeks' gestation, during heart septation and valve formation, and subsequently decreased as the valves matured. Endoglin expression in heart extracts was confirmed by Western blot analysis. TbetaR-I, TbetaR-II and betaglycan were mostly found on cardiac myocytes, but were detectable at low levels on endocardium. They were expressed transiently on cushion mesenchyme, albeit at much lower levels than endoglin. All four components of the TGF-beta receptor complex were detected by RT-PCR in embryonic heart. Thus transient up-regulation of the components of the TGF-beta receptor complex, and particulartly of endoglin, is associated with heart septation and valve formation during early human development.
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Affiliation(s)
- R Qu
- Division of Immunology and Cancer Research, Hospital for Sick Children, 555 University Avenue, Toronto, Ontario, Canada M5G 1X8
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Koga T, Qu R, Fukuda H. The central pattern generator for vomiting may exist in the reticular area dorsomedial to the retrofacial nucleus in dogs. Exp Brain Res 1998; 118:139-47. [PMID: 9547082 DOI: 10.1007/s002210050265] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
There is some controversy over whether or not a discrete site that integrates vomiting activities in somatic and autonomic nerves is present in the medulla oblongata. On the basis of our previous studies, we hypothesized that the temporal patterns of muscle contractions in vomiting are generated by a central pattern generator in the retrofacial area of the rostral medulla. To investigate this hypothesis further, the effects of electrical and chemical lesions of the medullary area were observed in decerebrate paralyzed dogs. Efferent activities of the phrenic and abdominal muscle nerves were recorded to recognize fictive vomiting. The right half of the medulla oblongata was transversely severed about 3 mm rostral to the obex. Fictive vomiting responses to vagal stimulation still appeared after hemisection in all 11 dogs. In addition, stimulation of the contralateral reticular area dorsomedial to the retrofacial nucleus produced fictive vomiting even after hemisection. An electrical lesion or injection of kainic acid (0.5-1.0 microl) was applied at the point where reticular stimulation induced fictive vomiting. After this destruction, no activities that corresponded to fictive vomiting could be induced by stimulation of vagal afferents or the reticular site. Salivation was decreased by hemisection, and decreased further, but was not completely abolished, with destruction of the reticular area. Kainic acid is known to selectively destroy neural cell bodies. Therefore, we concluded that neuronal somata in the reticular formation dorsomedial to the retrofacial nucleus play an essential role in the central patterning of vomiting activities in peripheral motor nerves.
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Affiliation(s)
- T Koga
- Department of Physiology, Kawasaki Medical School, Kurashiki, Okayama, Japan.
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Qu R, He F. [Research of the effect of ascorbic acid prereduced Pd in the determination of micro quantity of Mn with GFAAS]. Guang Pu Xue Yu Guang Pu Fen Xi 1997; 17:61-65. [PMID: 15810249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this article, method of determination of micro quantity of Mn with GFAAS and Pd have been researched, results of different additional methods of Pd were compared the combining energy of Pd in three heating steps were determined by X-ray Photoelectron Spectroscopy. The point was given that as a catalyst reduced Pd changed courses of Mn atomization, and when pre-reduced Pd was used because of its much larger surface area, method had much better RSD and had much stronger signal than other methods in those cases Pd was used too.
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Affiliation(s)
- R Qu
- Analysis Centre, Tianjin University, 300072 Tianjin
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Qu R, Liu C, Ruan W, Sun L. [Study on syntheses and IR spectra of novel chelate resins containing hydroxyalkylamine group]. Guang Pu Xue Yu Guang Pu Fen Xi 1997; 17:29-33. [PMID: 15810358] [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: 05/24/2023]
Abstract
Two novel chelate resins containing hydroxy-alkylamine group were prepared. The IR spectra of the above mentioned resins and their middle products were measured, and the major IR bands were assigned by such chemical methods as hydrolysis, getling salts, determination of hydroxyl value, etc., the structure of the resins and their middle products were proved.
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Affiliation(s)
- R Qu
- Department of Chemistry, Yantai Teachers College, 264025 Yantai
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Chen Y, Zhang J, Qu R, Wang J, Xie Y. An animal experiment on short gut lengthening. Chin Med J (Engl) 1997; 110:354-7. [PMID: 9594302] [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: 02/07/2023] Open
Abstract
OBJECTIVE To investigate the anatomical and histological changes of the lengthened gut by a special intraluminal tubular expander on the basis of the theory of "tension-stress". METHODS Nineteen New Zealand white rabbits were used. A 5 cm segment of the terminal ileum with a pedicle was put underneath the abdominal wall, with its proximal end closed and its distal end exteriorized as a stoma. One week later, as the wound healed well, an expander made of a small rubber tube was inserted into the short gut loop through the stoma. Three milliliters of water was injected as an initial dose. Then 0.5 ml water as an increment was injected subsequently every 12 hours until the total amount of water reached 15 ml and kept stable for two weeks. RESULTS Anatomically, the length and the capacity of the intestinal loop were recorded, after 15 ml expanding, as an average of 150% lengthening of the original and an average of 293% expansion. Two weeks after the removal of the expander, partial shrinking was observed. A stable lengthening had 123% of the original length, while the capacity reduced to 200% of the original one. Histologically, there was no remarkable changes of the mucosa or submucosa. But significant hypertrophy of the musculature and serosa layer was observed. The total thickness of the musculatures was 618% of the normal control's. Ultrastructurally, there were enlargement of the smooth muscle cells, increase in number and size of the mitochondria in the cytoplasm and widening of the intercellular space. CONCLUSION A short gut can be lengthened by a tubular expander following the rule of gradual tension and stress.
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Affiliation(s)
- Y Chen
- Department of Surgery, Beijing Children's Hospital, China
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Zhang S, Chen L, Qu R, Marmey P, Beachy R, Fauquet C. Regeneration of fertile transgenic indica (group 1) rice plants following microprojectile transformation of embryogenic suspension culture cells. Plant Cell Rep 1996; 15:465-469. [PMID: 24178454 DOI: 10.1007/bf00232975] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/1995] [Revised: 06/28/1995] [Indexed: 06/02/2023]
Abstract
Regenerable embryogenic suspensions of elite Indica (group 1) rice varieties IR24, IR64, IR72 and an advanced Indica rice breeding line IR57311-95-2-3 were established within 6-8 weeks from 3-4 week old calli derived from mature seeds. Transgenic rice plants were obtained by introducing a plasmid carrying genes encoding hygromycin phosphotransferase (hph, conferring resistance to hygromycin B) and ß-glucuronidase (uidA), both driven by the CaMV 35S promoter, via particle bombardment of embryogenic suspensions. The effect of osmotic conditioning on transformation was evaluated. Regenerated plants were resistant to hygromycin B and expressed the uidA (GUS) gene. The growth of mother plants (R0) was normal and seeds were produced. Southern blot analysis of R0 and R1 plants showed that hygromycin resistant plants contained intact hph genes that were inherited in a Mendelian fashion. A protocol for a simple, efficient, repeatable, genotype- and environment-independent Indica rice transformation system is described.
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Affiliation(s)
- S Zhang
- Division of Plant Biology, ILTAB/TSRI-ORSTOM - The Scripps Research Institute, 10666 North Torrey Pines Road - MRC7, 92037, La Jolla, CA, USA
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Abstract
To investigate changes in motility of the extrahepatic biliary system associated with emesis, we measured the volume of the gallbladder and flow resistance through the sphincter of Oddi, as well as antral and duodenal contractilities before and during retching in decerebrate paralyzed dogs. Motilities of the gallbladder, sphincter of Oddi, duodenum and antrum were enhanced with most episodes of fictive retching elicited by stimulation of the central part of the severed dorsal, as well as the ventral trunk of the thoracic vagus nerve. These enhanced motilities persisted until the end of retching. Motilities of the sphincter of Oddi and duodenum were sometimes transiently depressed at the beginning of retching. This depression in the sphincter continued for only 13 +/- 1.0 s, while the gallbladder contraction continued for 65 +/- 3.4 s. Motilities were rarely enhanced by vagal stimulation when retching was not elicited. These changes in motilities were abolished by bilateral vagotomy. The serum gastrin level was increased just after and 10 min after retching only when the ventral vagal trunk remained intact, while the plasma cholecystokinin level was not changed with retching. These results suggest that bile evacuation is interrupted with emesis despite contraction of the gallbladder during retching, since the sphincter of Oddi also contracts simultaneously.
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Affiliation(s)
- R Qu
- Department of Physiology, Kawasaki Medical School, Kurashiki, Japan
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Li L, Qu R, de Kochko A, Fauquet C, Beachy RN. An improved rice transformation system using the biolistic method. Plant Cell Rep 1993; 12:250-255. [PMID: 24197151 DOI: 10.1007/bf00237129] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/1992] [Revised: 12/22/1992] [Indexed: 06/02/2023]
Abstract
Immature embryos and embryogenic calli of rice, both japonica and indica subspecies, were bombarded with tungsten particles coated with plasmid DNA that contained a gene encoding hygromycin phosphotransferase (HPH, conferring hygromycin resistance) driven by the CaMV 35S promoter or Agrobactenum tumefaciens NOS promoter. Putatively transformed cell clusters were identified from the bombarded tissues 2 weeks after selection on hygromycin B. By separating these cell clusters from each other, and by stringent selection not only at the callus growth stage but also during regeneration and plantlet growth, the overall transformation and selection efficiencies were substantially improved over those previously reported. From the most responsive cultivar used in these studies, an average of one transgenic plant was produced from 1.3 immature embryos or from 5 pieces of embryogenic calli bombarded. Integration of the introduced gene into the plant genome, and inheritance to the offspring were demonstrated. By using this procedure, we have produced several hundred transgenic plants. The procedure described here provides a simple method for improving transformation and selection efficiencies in rice and may be applicable to other monocots.
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Affiliation(s)
- L Li
- Institute of Genetics, Academia Sinica, Beijing, China
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Qu R, Bhattacharyya M, Laco GS, de Kochko A, Rao BL, Kaniewska MB, Elmer JS, Rochester DE, Smith CE, Beachy RN. Characterization of the genome of rice tungro bacilliform virus: comparison with Commelina yellow mottle virus and caulimoviruses. Virology 1992; 186:798. [PMID: 1733115 DOI: 10.1016/0042-6822(92)90051-p] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Jones MC, Gough K, Dasgupta I, Rao BL, Cliffe J, Qu R, Shen P, Kaniewska M, Blakebrough M, Davies JW. Rice tungro disease is caused by an RNA and a DNA virus. J Gen Virol 1991; 72 ( Pt 4):757-61. [PMID: 2016590 DOI: 10.1099/0022-1317-72-4-757] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
We present evidence that rice tungro spherical virus (RTSV) has a genome of polyadenylated single-stranded RNA of about 10 kb whereas rice tungro bacilliform virus (RTBV) contains double-stranded circular DNA. RTBV DNA has been mapped and shown to have two discontinuities, one in each strand, at specific sites; it thus resembles that of the caulimoviruses. Gel electrophoresis of RTSV preparations revealed two protein bands (Mr 35K and 26K). RTBV yielded two major protein bands of 37K and 33K together with several minor species of higher and lower Mr which react with antiviral serum.
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Affiliation(s)
- M C Jones
- John Innes Institute, AFRC Institute for Plant Science Research, Norwich, U.K
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Qu R, Yokota M, Kitano M, Mizuhara H, Sakamoto K, Uesaka T, Nakano H, Saito A, Ueda K. Surgical indication for aortic arch hypoplasia in infants. J Cardiovasc Surg (Torino) 1990; 31:796-800. [PMID: 2262510] [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: 12/31/2022]
Abstract
To determine the surgical indications for aortic arch hypoplasia, the distal arch outer diameter, distal arch index (ratio of the distal arch diameter to the normal aortic ring diameter), and postoperative pressure gradient across the aortic arch were studied in 23 patients under 6 months of age who underwent surgery for coarctation and/or aortic arch hypoplasia. The ratio of the pressure gradient across the arch to the right radial artery was used to evaluate the postoperative level of stenosis. The maximum ratio of the pressure gradient that could be tolerated after surgery was considered to be 0.15 from the operative results. Negative correlations were found between the distal arch outer diameter and postoperative pressure gradient ratio (r = 0.80), and the distal arch index and postoperative pressure gradient ratio (r = 0.80). These correlations proved that in order to obtain a postoperative pressure gradient ratio of 0.15 or less, a distal arch outer diameter of 3.9 mm or more and a distal arch index of 0.63 or more were necessary. Consequently, a distal arch outer diameter of 3.9 mm or a distal arch index of 0.63 is considered to indicate that aortic arch hypoplasia is in need of repair.
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Affiliation(s)
- R Qu
- Department of Cardiovascular Surgery, Shizuoka Children's Hospital, Japan
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Ma SP, Qu R, Hang BQ. [Immunologic inhibition and anti-allergic action of Cryptotympana atrata Fabricius]. Zhongguo Zhong Yao Za Zhi 1989; 14:490-3, 512. [PMID: 2508674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cryptoympana atrata Fabricius(CAF)ig 5g/kg in mice decreases weights of the spleen and thymus, markedly decreases the clearance rate of iv charcoal particles and significantly inhibits the phagocytosis of peritoneal macrophages of mice. CAF ig at the above doses markedly suppresses IgE antibody mediated reactions, heterologous passive cutaneous anaphylaxis (PCA) in mice, degranulation of mast cells of calvarial periosteum in rats, and the delayed hypersensitivity reaction of ear induced by DNCB in mice.
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Fernandez DE, Qu R, Huang AH, Staehelin LA. Immunogold Localization of the L3 Protein of Maize Lipid Bodies during Germination and Seedling Growth. Plant Physiol 1988; 86:270-4. [PMID: 16665879 PMCID: PMC1054466 DOI: 10.1104/pp.86.1.270] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
We have used antibodies directed against the 16.5 kilodalton protein L3, the most abundant integral protein of maize (Zea mays L. cv Mo 17) lipid bodies, to follow the fate of this protein in scutellar parenchyma cells of maize during germination and subsequent seedling growth. Using gel electrophoresis and immunoblotting as well as immunocytochemical electron microscopy, we found that the amount of L3 decreases gradually during the first 3 to 4 days of seedling growth and more rapidly over the course of the next several days. Immunogold localization of the protein on thin sections indicated that L3 is found exclusively in the surface phospholipid monolayer of lipid bodies. The density of L3 in the surface layer of individual lipid bodies does not change during seedling growth; therefore, the decrease in the amount of L3 can be attributed to a decrease in the number of lipid bodies rather than to selective removal of protein components from the surface of all lipid bodies. Thus, L3 is apparently degraded at the same time as the matrix lipid of each lipid body. Unlike lipase, L3 does not appear to be transferred to other cellular compartments such as vacuoles during late stages of seedling growth.
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Affiliation(s)
- D E Fernandez
- Department of Molecular, Cellular, and Developmental Biology, University of Colorado, Boulder, Colorado 80309-0347
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Qu R, Wang SM, Lin YH, Vance VB, Huang AH. Characteristics and biosynthesis of membrane proteins of lipid bodies in the scutella of maize (Zea mays L.). Biochem J 1986; 235:57-65. [PMID: 3741390 PMCID: PMC1146648 DOI: 10.1042/bj2350057] [Citation(s) in RCA: 58] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Storage lipid bodies, which are prominent organelles present in the storage tissues of most seeds, have not been subjected to intensive biochemical investigation. In the present studies the major proteins in lipid bodies isolated from eleven taxonomically diverse species were shown to be distinctly different, as revealed by SDS/polyacrylamide-gel electrophoresis. The lipid-body membrane of maize (Zea mays L.) contained three major proteins of low Mr (19,500, 18,000 and 16,500), and they were chosen for further study. They all had alkaline pI values and behaved as hydrophobic integral proteins, as shown by their resistance to solubilization after repeated washing, amino acid composition and partitioning in a Triton X-114 system. Labelling in vivo with [35S]methionine and translation in vitro using extracted RNA in a wheat-germ system showed that the proteins were synthesized during seed maturation and not germination. The proteins synthesized in vivo and in vitro exhibited no appreciable difference in their mobilities in two-dimensional gel electrophoresis (isoelectric focusing and molecular sieving). The most abundant protein, that of Mr 16,500, was shown to be synthesized predominantly, if not exclusively, by RNA derived from bound polyribosomes and not from free polyribosomes. The implication of the results on the biosynthesis of the lipid bodies is discussed.
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