326
|
Sugarman J, Corneli A, Donnell D, Liu TY, Rose S, Celentano D, Jackson B, Aramrattana A, Wei L, Shao Y, Liping F, Baoling R, Dye B, Metzger D. Are there adverse consequences of quizzing during informed consent for HIV research? JOURNAL OF MEDICAL ETHICS 2011; 37:693-7. [PMID: 21653649 PMCID: PMC3200567 DOI: 10.1136/jme.2011.042358] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
INTRODUCTION While quizzing during informed consent for research to ensure understanding has become commonplace, it is unclear whether the quizzing itself is problematic for potential participants. In this study, we address this issue in a multinational HIV prevention research trial enrolling injection drug users in China and Thailand. METHODS Enrolment procedures included an informed consent comprehension quiz. An informed consent survey followed. RESULTS 525 participants completed the informed consent survey (Heng County, China¼255, Xinjiang, China¼229, Chiang Mai, Thailand¼41). Mean age was 33 and mean educational level was 8 yrs. While quizzing was felt to be a good way to determine if a person understands the nature of clinical trial participation (97%) and participants did not generally find the quiz to be problematic, minorities of respondents felt pressured (6%); anxious (5%); bored (5%); minded (5%); and did not find the questions easy (13%). In multivariate analysis, lower educational level was associated with not minding the quizzing (6e10 yrs vs 0e5 yrs: OR¼0.27, p¼0.03; more than 11 yrs vs 0e5 yrs: OR¼0.18, p¼0.03). There were also site differences (Heng County vs Xinjiang) in feeling anxious (OR¼0.07; p¼<0.01), not minding (OR¼0.26; p¼0.03), being bored (OR¼0.25; p¼0.01) and not finding the questions easy (OR¼0.10; p¼<0.01). CONCLUSIONS Quizzing during the informed consent process can be problematic for a minority of participants. These problems may be associated with the setting in which research takes place and educational level. Further research is needed to develop, test and implement alternative methods of ensuring comprehension of informed consent. TRIAL REGISTRATION clinicaltrials.gov number NCT00270257.
Collapse
|
327
|
Liu CS, Shih K, Wei L, Wang F, Li FB. Kinetics and mechanism of propachlor reductive transformation through nucleophilic substitution by dithionite. CHEMOSPHERE 2011; 85:1438-1443. [PMID: 21893332 DOI: 10.1016/j.chemosphere.2011.08.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 08/07/2011] [Accepted: 08/08/2011] [Indexed: 05/31/2023]
Abstract
Chloroacetanilide herbicides are extensively used in the control of weeds and have widely resulted in nonpoint contamination of groundwater and soil resources. In the attempt to achieve better remediation for herbicide-contaminated resources, we investigated the reductive transformation of propachlor through nucleophilic substitution by dithionite (S(2)O(4)(2-)). Results showed that propachlor underwent rapid dechlorination in the presence of dithionite. The reaction was of second-order kinetics and strongly influenced by pH and temperature. At pH 7.0 and temperature 308K, the rate constant of propachlor dechlorination was estimated at 123.4±0.7M(-1)h(-1). Within the pH range tested (3.0-9.5), higher pH promoted the ionization of dithionite, resulting in a more active nucleophilic reagent of S(2)O(4)(2-) to enhance the propachlor transformation rate. Similarly, higher reaction temperature overcame the activation barrier of steric hindrance in propachlor structure and accelerated the excitation of dithionite, in which higher rate constants of propachlor reductive dechlorination were obtained. Dechlorination was found to be the first and necessary step of propachlor nucleophilic substitution by dithionite. Sulfur nucleophile substituted compounds, including propachlor dithionite, propachlor ethanesulfonic acid (ESA), and hydroxyl propachlor, were identified as the dechlorination products of propachlor, indicating bimolecular nucleophilic substitution (S(N)2) as the mechanism for propachlor transformation initiated by dithionite.
Collapse
|
328
|
Wei L, Dongming X, Yiming Z. Clinical evaluation of capsular ventricular septal defect with multiple export underwent transcatheter closure. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
329
|
Wei L, Faquan L, Aiqin Z. Clinical evaluation of intervention in patients of secundum atrial septal defect with atrial septal aneurysm. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
330
|
Wei L, Li-Rong W, Ming-Yu L, Wei-Min W, Jian L, Yu-Liang M. Clinical study of utilisation of thrombus aspiration catheters in patients with recovering from acute myocardial infarction underwent elective percutaneous. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
331
|
Dongming X, Yiming Z, Wei L. The study of the relation between different end points of slow atrioventricular nodal pathway ablation and clinical efficiency in patients with atrioventricular nodal reentrant tachycardia (slow-fast kind). BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
332
|
Wei L. HCN4 modified mesenchymal stem cells injection affects ventricular electrophysiology in complete atrioventricular block canine. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
333
|
Wei L, Faquan L, Jiumei C. Research of the treatment in patients with rheumatic mitral stenosis merging left atrial thrombosis by percutaneous balloon mitral valvuloplasty. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
334
|
Wei L, Faquan L, Yixiao Z. Prognosis and therapeutic effect of atorvastatin on paroxysmal atrial fibrillation in patients with non-valvular disease. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
335
|
Wei L, Dongming X, Yuguang Y, Faquan L. Effects of delayed percutaneous coronary intervention on left ventricle remodeling in patients with acute myocardial infarction. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
336
|
Wei L, Zhanglin Y. Long-term efficacy of valsartan in combination with amiodarone in older patients with non-valvular paroxysmal atrial fibrillation. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
337
|
Jiumei C, Wei L, Dongyang X. Intervention study of atorvastatin on expression of PECAM-1 and P-selectin. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.79] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
338
|
Wei L, Aiqin Z, Faquan L. Improved branched endovascular aortic stent used to treat DeBaKey aortic dissection. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
339
|
Lu Q, Shen H, Wei L, Wang C, Liu Y, Lin D. Basal serum testosterone predict ovarian response and in vitro fertilization outcome in women with diminished ovarian reserve. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
340
|
Martin L, Jia G, Grecula J, Harper E, Kefauver C, Wei L, Knopp M, Delgado IE, Grever M, Bekaii-Saab T. 6525 POSTER A Phase I Study of Triapine and Radiation in Patients With Locally Advanced Pancreas Cancer. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71836-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
341
|
Shen L, Xiao M, Kong F, Brown M, Sun J, Kong Q, Cha J, Xiang H, Xu H, Jin H, Wei L, Ni X. Detection of Laribacter hongkongensis using species-specific duplex PCR assays targeting the 16S rRNA gene and the 16S-23S rRNA intergenic spacer region (ISR). J Appl Microbiol 2011; 111:625-30. [PMID: 21689224 DOI: 10.1111/j.1365-2672.2011.05083.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIMS For the rapid detection of Laribacter hongkongensis, which is associated with human community-acquired gastroenteritis and traveller's diarrhoea, we developed a duplex species-specific PCR assay. METHODS AND RESULTS Full-length of the 16S-23S rRNA intergenic spacer region (ISR) sequences of 52 L. hongkongensis isolates were obtained by PCR-based sequencing. Two species-specific primer pairs targeting 16S rRNA gene and ISR were designed for duplex PCR detection of L. hongkongensis. The L. hongkongensis species-specific duplex PCR assay showed 100% specificity, and the minimum detectable level was 2.1 × 10(-2) ng μl(-1) genomic DNA which corresponds to 5000 CFU ml(-1). CONCLUSIONS The high specificity and sensitivity of the assay make it suitable for rapid detection of L. hongkongensis. SIGNIFICANCE AND IMPACT OF THE STUDY This species-specific duplex PCR method provides a rapid, simple, and reliable alternative to conventional methods to identify L. hongkongensis and may have applications in both clinical and environmental microbiology.
Collapse
|
342
|
Yu D, Wei L, Zhengxiu L, Jian L, Lijia W, Wei L, Xiqiang Y, Xiaodong Z, Zhou F, Enmei L. Impact of bacterial colonization on the severity, and accompanying airway inflammation, of virus-induced wheezing in children. Clin Microbiol Infect 2011; 16:1399-404. [PMID: 20041894 DOI: 10.1111/j.1469-0691.2009.03147.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
It is reported that bacterial colonization of the airway in neonates affects the likelihood and severity of subsequent wheezing in childhood. This study aimed to explore the impact of bacterial colonization on the severity of virus-induced wheezing, and accompanying airway inflammation. Nasopharyngeal aspirates (NPAs) from 68 hospitalized children with bronchiolitis and 85 children with recurrent wheezing were obtained. Eleven common respiratory viruses were sought by PCR and/or direct fluorescence assay. Bacteria were isolated from NPAs by routine culture methods. Cell numbers and concentrations of cytokines/chemokines in the NPAs were measured, and nucleated cells were characterized. The frequency of bacterial colonization in children with recurrent wheezing was significantly higher than in children with an initial attack of bronchiolitis. Bacterial colonization accompanying virus infection had no effect on clinical manifestations, duration of hospitalization, concentrations of cytokines/chemokines (except interleukin-10 (IL-10)) or cellularity in the children with bronchiolitis; however, among the children with recurrent wheezing, those who had coexistent non-invasive bacterial colonization and virus infection presented more frequent cyanosis, longer duration of hospitalization, a higher concentration of IL-10 and a higher percentage of neutrophils in NPAs than those with virus infection but without bacterial colonization. Bacterial colonization was common in children with virus-induced wheezing, particularly in the situation of recurrent wheezing. To some extent, bacterial colonization accompanying virus infection may contribute to the severity of the wheezing because of its impact on airway inflammation.
Collapse
|
343
|
Yu D, Wei L, Zhengxiu L, Jian L, Lijia W, Wei L, Xiqiang Y, Xiaodong Z, Zhou F, Enmei L. Impact of bacterial colonization on the severity, and accompanying airway inflammation, of virus-induced wheezing in children. Clin Microbiol Infect 2011. [PMID: 20041894 PMCID: PMC7128791 DOI: 10.1111/j.1469-0691.2010.03147.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
It is reported that bacterial colonization of the airway in neonates affects the likelihood and severity of subsequent wheezing in childhood. This study aimed to explore the impact of bacterial colonization on the severity of virus-induced wheezing, and accompanying airway inflammation. Nasopharyngeal aspirates (NPAs) from 68 hospitalized children with bronchiolitis and 85 children with recurrent wheezing were obtained. Eleven common respiratory viruses were sought by PCR and/or direct fluorescence assay. Bacteria were isolated from NPAs by routine culture methods. Cell numbers and concentrations of cytokines/chemokines in the NPAs were measured, and nucleated cells were characterized. The frequency of bacterial colonization in children with recurrent wheezing was significantly higher than in children with an initial attack of bronchiolitis. Bacterial colonization accompanying virus infection had no effect on clinical manifestations, duration of hospitalization, concentrations of cytokines/chemokines (except interleukin-10 (IL-10)) or cellularity in the children with bronchiolitis; however, among the children with recurrent wheezing, those who had coexistent non-invasive bacterial colonization and virus infection presented more frequent cyanosis, longer duration of hospitalization, a higher concentration of IL-10 and a higher percentage of neutrophils in NPAs than those with virus infection but without bacterial colonization. Bacterial colonization was common in children with virus-induced wheezing, particularly in the situation of recurrent wheezing. To some extent, bacterial colonization accompanying virus infection may contribute to the severity of the wheezing because of its impact on airway inflammation.
Collapse
|
344
|
Graham K, Gilpin D, Wei L, Drain M, Elborn J, Tunney M. 143 Characterisation of Prevotella spp. isolated from patients with cystic fibrosis (CF) and non-CF bronchiectasis by pulse field gel electrophoresis (PFGE). J Cyst Fibros 2011. [DOI: 10.1016/s1569-1993(11)60159-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
345
|
Wei L, Graham K, Drain M, Tunney M, Elborn J. 99 Antimicrobial susceptibility of anaerobic bacteria cultured from patients with cystic fibrosis (CF) and non-CF bronchiectasis. J Cyst Fibros 2011. [DOI: 10.1016/s1569-1993(11)60116-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
346
|
Martin LK, Jia G, Yang X, Grecula JC, Harper EJ, Kefauver C, Wei L, Shah ZK, Bloomston M, Melvin WS, Muscarella P, Ellison EC, Knopp MV, Espinoza Delgado I, Grever MR, Bekaii-Saab TS. A dose-escalating and pharmacodynamic study of 3-aminopyridine-2-carboxaldehyde thiosemicarbazone (triapine) and radiation in patients with locally advanced pancreas cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e14558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
347
|
Li X, Lin Q, Dong M, Wu X, Wei L, Wen J, Ma X, Chen Z. Comparison of 12 current staging systems for advanced hepatocellular carcinoma not amendable to locoregional therapy as inclusion criteria for clinical trials. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.2567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
348
|
Feng B, Eknoyan G, Guo ZS, Jadoul M, Rao HY, Zhang W, Wei L. Effect of interferon-alpha-based antiviral therapy on hepatitis C virus-associated glomerulonephritis: a meta-analysis. Nephrol Dial Transplant 2011; 27:640-6. [DOI: 10.1093/ndt/gfr236] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
|
349
|
Laird SM, Mariee N, Wei L, Li TC. Measurements of CD56+ cells in peripheral blood and endometrium by flow cytometry and immunohistochemical staining in situ. Hum Reprod 2011; 26:1331-7. [DOI: 10.1093/humrep/der104] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
|
350
|
Liang XW, Ge ZJ, Wei L, Guo L, Han ZM, Schatten H, Sun QY. The effects of postovulatory aging of mouse oocytes on methylation and expression of imprinted genes at mid-term gestation. Mol Hum Reprod 2011; 17:562-7. [DOI: 10.1093/molehr/gar018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
|