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Stranges S, Rodrigues R, Anderson K, Alonzo R, Wilk P, Reid G, Gilliland J, Zou G, Nicholson K, Guaiana G. Impact of Neighborhood and Environmental Factors on Sleep Health Among Middle-Aged and Older Adults in the Canadian Longitudinal Study on Aging. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.227] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Stranges S, Rodrigues R, Anderson K, Alonzo R, Wilk P, Reid G, Gilliland J, Zou G, Nicholson K, Guaiana G. Who Sleeps Well in Canada? Social Determinants of Sleep Health Disparities Among Middle-Aged and Older Adults in the Canadian Longitudinal Study on Aging. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.282] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Scognamiglio Renner Araujo C, Medeiros Ribeiro AC, Saad C, Bonfiglioli K, Domiciano DS, Yukie Shimabuco A, Rodrigues Silva M, Neves E, Pasoto S, Pedrosa T, Kanda Kupa L, Zou G, Pereira RM, Silva CA, Aikawa N, Bonfa E. POS0259 A RANDOMIZED CLINICAL TRIAL OF 2-WEEK METHOTREXATE DISCONTINUATION IN RHEUMATOID ARTHRITIS PATIENTS VACCINATED WITH INACTIVATED SARS-COV-2 VACCINE. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundPatients with rheumatoid arthritis (RA) on methotrexate have reduced vaccine responses. Temporary discontinuation has improved immunogenicity of anti-influenza vaccine, but this strategy has not been evaluated in anti-SARS-CoV-2 vaccines.ObjectivesTo evaluate the effect on immunogenicity and safety of 2-week methotrexate (MTX) discontinuation after each dose of the Sinovac-CoronaVac vaccine versus MTX maintenance in rheumatoid arthritis (RA) patients.MethodsThis was a single-center, prospective, randomized, investigator-blinded, intervention study (#NCT04754698, CoronavRheum), including adult RA patients (stable CDAI≤10, prednisone ≤7.5mg/day), randomized (1:1) to withdraw MTX (MTX-hold) for 2 weeks after each vaccine dose or maintain MTX (MTX-maintain), evaluated at D0, D28 and D69. Co-primary outcomes were anti-SARS-CoV-2 S1/S2 IgG seroconversion(SC) and neutralizing antibody (NAb) positivity at D69. Secondary outcomes were geometric mean titers (GMT) and flare rates. For immunogenicity analyses, we excluded patients with baseline positive IgG/NAb, and, for safety reasons, those who flared at D28 (CDAI>10) and did not withdraw MTX twice.ResultsRandomization included 138 patients with 9 exclusions (5 COVID-19, 4 protocol violations). Safety evaluation included 60 (MTX-hold) and 69 (MTX-maintain) patients. Further exclusions: 27 patients [13 (21.7%) vs. 14 (20.3%), p=0.848] with positive baseline IgG/NAb and 10 patients (21.3%) in MTX-hold with CDAI>10 at D28. At D69, MTX-hold (n=37) had a higher rate of seroconversion than MTX-maintain (n=55) group [29 (78.4%) vs 30 (54.5%), p=0.019], with parallel augmentation in GMT [34.2 (25.2-46.4) vs 16.8 (11.9-23.6), p=0.006]. No differences were observed for NAb positivity [23 (62.2%) vs 27 (49.1%), p=0.217]. At D28 flare, rates were comparable in both groups (CDAI, p=0.122; DAS28-CRP, p=0.576), whereas CDAI>10 was more frequent in MTX-hold at D69 (p=0.024).Figure 1.ConclusionWe provide novel data that 2-week MTX withdrawal after each Sinovac-CoronaVac vaccine dose improves anti-SARS-CoV-2 IgG response. The increased flare rates after second MTX withdrawal may be attributed to the short-term interval between vaccine doses. This strategy requires close surveillance and shared decision making due to the possibility of flares.References[1]Jara A, Undurraga EA, González C, et al. Effectiveness of an inactivated SARS-CoV-2 vaccine in Chile. N Eng J Med. 2021 Sep 2;385(10):875-84. doi: 10.1056/NEJMoa2107715[2]Furer V, Eviatar T, Zisman D, et al. Lb0003 Immunogenicity and Safety of the BNT162B2 mRNA Covid-19 Vaccine in Adult Patients with Autoimmune Inflammatory Rheumatic Diseases and General Population: a Multicenter Study. Ann Rheum Dis. 2021;80:200-201. doi: 10.1136/annrheumdis-2021-220647[3]Medeiros-Ribeiro AC, Aikawa NE, Saad CG, et al. Immunogenicity and safety of the CoronaVac inactivated vaccine in patients with autoimmune rheumatic diseases: a phase 4 trial. Nat. Med. 2021 Jul 30:1-8. doi: 10.1038/s41591-021-01469-5.[4]Park JK, Lee MA, Lee EY, et al. Effect of methotrexate discontinuation on efficacy of seasonal influenza vaccination in patients with rheumatoid arthritis: a randomised clinical trial. Ann Rheum Dis. 2017 Sep 1;76(9):1559-65. http://dx.doi.org/10.1136/annrheumdis-2017-211128[5]Park JK, Lee YJ, Shin K, et al. Impact of temporary methotrexate discontinuation for 2 weeks on immunogenicity of seasonal influenza vaccination in patients with rheumatoid arthritis: a randomised clinical trial. Ann Rheum Dis. 2018 Jun 1;77(6):898-904. http://dx.doi.org/10.1136/annrheumdis-2018-213222AcknowledgementsThis protocol is part of a larger study of immunosuppressed patients with ARD (Clinicaltrials.gov#NCT04754698)Disclosure of InterestsNone declared
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JIANG S, Jiao Y, Yu T, Zou G, Gao H, Zhuo L, Li W. POS-333 Local activation of complement C3 in kidney tissue mediates diabetic tubulointerstitial injury. Kidney Int Rep 2022. [DOI: 10.1016/j.ekir.2022.01.354] [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: 11/24/2022] Open
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Howard CW, Zou G, Morrow SA, Fridman S, Racosta JM. Wilcoxon-Mann-Whitney odds ratio: A statistical measure for ordinal outcomes such as EDSS. Mult Scler Relat Disord 2022; 59:103516. [PMID: 35123291 DOI: 10.1016/j.msard.2022.103516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 12/13/2021] [Accepted: 01/08/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND In many clinical situations, ordinal scales afford the primary method of semi-quantifying patient outcomes. In the field of multiple sclerosis, the primary ordinal scale is the Expanded Disability Status Scale. Predominant methods of ordinal scale statistical analysis provide a p-value without effect size or rely heavily on the assumption of proportionality of odds, subjecting them to lack of power and error. The Wilcoxon-Manny-Whitney Odds is a statistical method which provides significant information such as p-value, effect size, number needed to treat, confidence intervals, and is largely assumption-free. However, its utility has not been demonstrated in the field of multiple sclerosis. METHODS Three clinical studies in the field of multiple sclerosis were selected which utilized ordinal scale outcomes at group or individual levels. Data from these studies was extracted using WebPlotDigitizer, and a custom Wilxocon-Mann-Whitney Odds software was applied to each dataset to re-analyze the main outcomes of the studies. RESULTS Re-analysis of the manuscript by Muraro et al., 2017 demonstrated that autologous stem cell transplantation for relapsing remitting multiple sclerosis resulted in a 65% chance of improving from any Expanded Disability Status Scale category, although not significant. Re-analysis of the manuscript by Songthammawat et al., 2019 demonstrated chance of improvement with intravenous methylprednisolone and concurrent plasma exchange was 185% versus 32% in intravenous methylprednisolone with add-on plasma exchange, although not significant. Re-analysis of Kister et al., 2012 demonstrated the chances of mobility or cognition scores generally favored decline at every 5-year increment of study, and although statistically significant, these were smaller effect sizes ranging from an 11% chance of improvement to a 66% chance of decline over a 5-year interval. DISCUSSION The Wilcoxon-Mann-Whitney Odds simplifies ordinal data analysis with its robust largely assumption-free nature. In the place of numerous statistical tests, this single test provides effect size estimate, number needed to treat, p-values, and confidence intervals. Importantly, the Wilcoxon-Mann-Whitney Odds effect size calculation is intuitively applicable to both individual and population-levels. Further, the Wilcoxon-Mann-Whitney Odds allows intuitive description of the progression of large cohorts over time, and we were able to clearly convey the odds of mobility and cognitive decline over 30 years in a large multiple sclerosis cohort. Overall, the Wilcoxon-Mann-Whitney Odds is a powerful and robust statistical test with significant promise within the field of multiple sclerosis.
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Affiliation(s)
- C W Howard
- Section of Neurology, Department of Internal Medicine, University of Manitoba, Manitoba, Canada.
| | - G Zou
- Dept of Epidemiology and Biostatistics, Western University, London, Canada; Robarts Research Institute, Western University, London, Canada
| | - S A Morrow
- Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
| | - S Fridman
- Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada
| | - J M Racosta
- Department of Clinical Neurological Sciences, Western University, London, Ontario, Canada; The London MS Epidemiology Laboratory. London, Ontario, Canada
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Chen X, Hu C, Wang W, Zou Q, Li J, Lin Q, Zhu X, Jiang Y, Sun Y, Shen L, Wang L, Zou G, Lin X, Wang Y, Lin S, Li M, Ao R, Xu R, Lin H, Wang R. 909P A phase II study of the anti-programmed cell death-1 (PD-1) antibody penpulimab in patients with metastatic nasopharyngeal carcinoma (NPC) who had progressed after two or more lines of chemotherapy: Updated results. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Yang YJ, Wei X, Zou G, Zhou FH, Sun LM. [Feasibility and safety of fetal intravascular transfusion via the intrahepatic vein in the treatment of fetal anemia]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:244-250. [PMID: 33902235 DOI: 10.3760/cma.j.cn112141-20201026-00798] [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: 11/05/2022]
Abstract
Objective: To investigate the feasibility and safety of fetal intravascular transfusion via the intrahepatic vein in the treatment of fetal anemia. Methods: This was a retrospective analysis of all fetuses requiring intrauterine transfusion (IUT) in the Shanghai First Maternity and Infant Hospital between January 2010 and December 2019. According to the different ways of IUT, they were divided into intrahepatic venous transfusion group and umbilical venous transfusion group, fetal outcomes and the incidence of procedure-related complications between the two groups were compared. Results: A total of 97 IUTs were performed on 48 fetuses. Among them, 16 cases were performed in the intrahepatic vein (31 transfusions), 32 cases were performed in the cord of the umbilical vein (66 transfusions).There were no significant differences between the two groups in age, labor history and the proportion of fetal hydrops before the first transfusion. In the intrahepatic venous transfusion group, the posterior placenta was 14/16, which was significantly higher than 78% (25/32) in the umbilical venous transfusion group (P<0.01). The live-birth rates of the two groups were 13/16 and 75% (24/32). There was no significant difference between the two groups (P>0.05). Before intrahepatic venous transfusion, the proportion of fetal hydrops was significantly higher than that of umbilical venous transfusion [55% (17/31) vs 24% (16/66), P<0.05]. Puncture success rate of intrahepatic venous transfusion and umbilical venous transfusion were both 100%. In the umbilical venous transfasion group, the incidence of needle slippage (5%, 3/66) and the abnormality of fetal heart rate (11%, 7/66) were higher than those in the intrahepatic venous transfasion group [0 and 3% (1/31)], but there were no significant differences between the two groups (all P>0.05). There were no cases of fetal loss within 24 hours, premature rupture of membranes, infection within 7 days and emergency cesarean section after IUT in both groups. Conclusions: Fetal intravascular transfusion via the intrahepatic vein is safe and feasible in the treatment of fetal anemia. But the requirements of puncture technique are relatively high, so it is recommended to be carried out in experienced fetal treatment center.
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Affiliation(s)
- Y J Yang
- Fetal Medicine Unit and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai 201204, China
| | - X Wei
- Fetal Medicine Unit and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai 201204, China
| | - G Zou
- Fetal Medicine Unit and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai 201204, China
| | - F H Zhou
- Fetal Medicine Unit and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai 201204, China
| | - L M Sun
- Fetal Medicine Unit and Prenatal Diagnosis Center, Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai 201204, China
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Tan MF, Zou G, Wei Y, Liu WQ, Li HQ, Hu Q, Zhang LS, Zhou R. Protein-protein interaction network and potential drug target candidates of Streptococcus suis. J Appl Microbiol 2021; 131:658-670. [PMID: 33249680 DOI: 10.1111/jam.14950] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 11/15/2020] [Accepted: 11/25/2020] [Indexed: 02/06/2023]
Abstract
AIMS This study aimed to explore potential drug targets of Streptococcus suis at the system level. METHODS AND RESULTS A homologous protein mapping method was used in the construction of a protein-protein interaction (PPI) network of S. suis, which presented 1147 non-redundant interaction pairs among 286 proteins. The parameters of PPI networks were calculated and showed scale-free network properties. In all, 41 possibly essential proteins identified from 47 highly connected proteins were selected as potential drug target candidates. Of these proteins, 30 were already regarded as drug targets in other bacterial species. Six transporters with high connections to other functional proteins were identified as probably not essential but important functional proteins. Afterward, the subnetwork centred with cell division protein FtsZ was used in confirming the PPI network through bacterial two-hybrid analysis. CONCLUSIONS The predicted PPI network covers 13·04% of the proteome in S. suis. The selected 41 potential drug target candidates are conserved between S. suis and several model bacteria. SIGNIFICANCE AND IMPACT OF THE STUDY The predictions included proteins known to be drug targets, and a verifying experiment confirmed the reliability of predicted interactions. This work is the first to present systematic computational PPI data for S. suis and provides potential drug targets, which are valuable in exploring novel anti-streptococcus drugs.
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Affiliation(s)
- M-F Tan
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University College of Veterinary Medicine, Wuhan, China.,Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, China
| | - G Zou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University College of Veterinary Medicine, Wuhan, China
| | - Y Wei
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, China
| | - W-Q Liu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University College of Veterinary Medicine, Wuhan, China
| | - H-Q Li
- Institute of Animal Husbandry and Veterinary Medicine, Jiangxi Academy of Agricultural Sciences, Nanchang, China
| | - Q Hu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University College of Veterinary Medicine, Wuhan, China
| | - L-S Zhang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University College of Veterinary Medicine, Wuhan, China
| | - R Zhou
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University College of Veterinary Medicine, Wuhan, China.,International Research Center for Animal Disease (Ministry of Science & Technology of China), Wuhan, China.,Cooperative Innovation Center of Sustainable Pig Production, Wuhan, China
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Luo X, Li JX, Liu YT, Zou G, Yao WX, Qing GQ, Yang RL, Ye XY, Facchini G, Rossetti S. Influence of lymph node dissection in patients undergoing radical nephrectomy for non-metastatic renal cell carcinoma: a systematic review and meta-analysis. Eur Rev Med Pharmacol Sci 2020; 23:6079-6090. [PMID: 31364109 DOI: 10.26355/eurrev_201907_18422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Whether lymph node dissection (LND) should be performed concomitantly with radical nephrectomy (RN) for non-metastatic renal carcinoma has still been controversial recently. We conducted a meta-analysis assessing oncologic outcomes of radical nephrectomy with lymph node dissection (LND) and without lymph node dissection (non-LND) in non-metastatic renal cell carcinoma (NMRCC). PATIENTS AND METHODS A systematic review was performed until April 2018 using a comprehensive search in PubMed, EMBASE, and Cochrane Library databases to identify eligible comparative studies. A formal meta-analysis was performed for studies comparing radical nephrectomy with LND and radical nephrectomy with non-LND for cT1-T4NxM0 tumors. Furthermore, a subgroup analysis for locally advanced renal cell carcinoma (cT3-T4NxM0) was conducted. RESULTS Thirteen studies on patients with LND and non- LND were identified and included in the analysis. LND group did not have a significantly better survival than non-LND group for cT1-T4NxM0 tumors (HR 0.93, 95% CI 0.78-1.11, p=0.45), However, in the subgroup of locally advanced renal cell carcinoma (cT3-T4NxM0), it showed a significantly better OS rate in patients who had undergone LND compared to those without LND (HR 0.73, 95% CI 0.60-0.90; p=0.003). CONCLUSIONS LND offers better cancer control and better long-term survival in locally advanced renal cell carcinomas (cT3-T4NxM0). This conclusion should be confirmed by a prospective randomized clinical trial.
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Affiliation(s)
- X Luo
- Department of Urology, Guangzhou Panyu Central Hospital, Guangzhou, China.
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Zhang Y, Lin P, Zou JY, Zou G, Wang WZ, Liu YL, Zhao HW, Fang AP. MiR-216a-5p act as a tumor suppressor, regulating the cell proliferation and metastasis by targeting PAK2 in breast cancer. Eur Rev Med Pharmacol Sci 2020; 23:2469-2475. [PMID: 30964173 DOI: 10.26355/eurrev_201903_17394] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Our study aimed to investigate the expression of microRNA-216a-5p (miR-216a-5p) in breast cancer (BC) and its effect on the proliferation and metastasis of BC cells by regulating the expression of p21-activated protein kinase 2 (PAK2) gene. PATIENTS AND METHODS A total of 50 cases of cancer tissue specimens and corresponding para-carcinoma normal tissue specimens were collected from the breast surgery department of our hospital from July 2016 to December 2017. BC MCF-7 cell line and normal breast epithelial MCF-10A cells were cultured. MiR-NC (negative control), LV-p21-activated protein kinase 2 (PAK2) and/or miR-216a-5p mimics were synthesized and transfected. The protein and mRNA expression level in BC tissues and cells were detected by Western blot and quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) assay, respectively. Additionally, the Luciferase Reporter Assays, cell proliferation detection, clone formation assays and transwell migration and invasion assay were performed to determine the functional alteration of BC cells, respectively. RESULTS The results of qRT-PCR demonstrated that miR-216a-5p was decreased in both BC tissues and cells compared with that in normal controls. Online target gene prediction software and Dual-Luciferase reporter assay were used for target identification, and PAK2 was identified as a functional target of miR-216a-5p in BC cells. The results were further clarified with the Western blot (WB) experiment. In vitro, cell functions were detected by Cell Counting Kit-8 (CCK-8), crystal violet staining and transwell experiment, respectively. The results indicated that decreased expression of PAK2 resulting from the up-regulation of miR-216a-5p could restrain the proliferation, clone formation, invasion and migration abilities of BC cells. CONCLUSIONS We showed that miR-216a-5p played a role as antioncogene in BC, which provides a new therapeutic target for the treatment of BC.
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Affiliation(s)
- Y Zhang
- Department of General Surgery, Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, China.
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Silveira CRA, MacKinley J, Coleman K, Li Z, Finger E, Bartha R, Morrow SA, Wells J, Borrie M, Tirona RG, Rupar CA, Zou G, Hegele RA, Mahuran D, MacDonald P, Jenkins ME, Jog M, Pasternak SH. Ambroxol as a novel disease-modifying treatment for Parkinson's disease dementia: protocol for a single-centre, randomized, double-blind, placebo-controlled trial. BMC Neurol 2019; 19:20. [PMID: 30738426 PMCID: PMC6368728 DOI: 10.1186/s12883-019-1252-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Accepted: 02/01/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Currently there are no disease-modifying treatments for Parkinson's disease dementia (PDD), a condition linked to aggregation of the protein α-synuclein in subcortical and cortical brain areas. One of the leading genetic risk factors for Parkinson's disease is being a carrier in the gene for β-Glucocerebrosidase (GCase; gene name GBA1). Studies in cell culture and animal models have shown that raising the levels of GCase can decrease levels of α-synuclein. Ambroxol is a pharmacological chaperone for GCase and is able to raise the levels of GCase and could therefore be a disease-modifying treatment for PDD. The aims of this trial are to determine if Ambroxol is safe and well-tolerated by individuals with PDD and if Ambroxol affects cognitive, biochemical, and neuroimaging measures. METHODS This is a phase II, single-centre, double-blind, randomized placebo-controlled trial involving 75 individuals with mild to moderate PDD. Participants will be randomized into Ambroxol high-dose (1050 mg/day), low-dose (525 mg/day), or placebo treatment arms. Assessments will be undertaken at baseline, 6-months, and 12-months follow up times. Primary outcome measures will be the Alzheimer's disease Assessment Scale-cognitive subscale (ADAS-Cog) and the ADCS Clinician's Global Impression of Change (CGIC). Secondary measures will include the Parkinson's disease Cognitive Rating Scale, Clinical Dementia Rating, Trail Making Test, Stroop Test, Unified Parkinson's disease Rating Scale, Purdue Pegboard, Timed Up and Go, and gait kinematics. Markers of neurodegeneration will include MRI and CSF measures. Pharmacokinetics and pharmacodynamics of Ambroxol will be examined through plasma levels during dose titration phase and evaluation of GCase activity in lymphocytes. DISCUSSION If found effective and safe, Ambroxol will be one of the first disease-modifying treatments for PDD. TRIAL REGISTRATION ClinicalTrials.gov NCT02914366, 26 Sep 2016/retrospectively registered.
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Affiliation(s)
- C R A Silveira
- Cognitive Neurology and Alzheimer's Disease Research Centre, Parkwood Institute - Main Building, Room A230, 550, Wellington Road, London, Ontario, N6G 0A7, Canada.,Lawson Health Research Institute, London, Ontario, Canada
| | - J MacKinley
- Cognitive Neurology and Alzheimer's Disease Research Centre, Parkwood Institute - Main Building, Room A230, 550, Wellington Road, London, Ontario, N6G 0A7, Canada.,Lawson Health Research Institute, London, Ontario, Canada
| | - K Coleman
- Cognitive Neurology and Alzheimer's Disease Research Centre, Parkwood Institute - Main Building, Room A230, 550, Wellington Road, London, Ontario, N6G 0A7, Canada.,Lawson Health Research Institute, London, Ontario, Canada
| | - Z Li
- Cognitive Neurology and Alzheimer's Disease Research Centre, Parkwood Institute - Main Building, Room A230, 550, Wellington Road, London, Ontario, N6G 0A7, Canada.,Lawson Health Research Institute, London, Ontario, Canada
| | - E Finger
- Cognitive Neurology and Alzheimer's Disease Research Centre, Parkwood Institute - Main Building, Room A230, 550, Wellington Road, London, Ontario, N6G 0A7, Canada.,Lawson Health Research Institute, London, Ontario, Canada.,Deparment of Clinical Neurological Science, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - R Bartha
- Department of Medical Biophysics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.,Robarts Research Institute, Western University, London, Ontario, Canada
| | - S A Morrow
- Cognitive Neurology and Alzheimer's Disease Research Centre, Parkwood Institute - Main Building, Room A230, 550, Wellington Road, London, Ontario, N6G 0A7, Canada.,Lawson Health Research Institute, London, Ontario, Canada.,Deparment of Clinical Neurological Science, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - J Wells
- Lawson Health Research Institute, London, Ontario, Canada.,Division of Geriatric Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - M Borrie
- Lawson Health Research Institute, London, Ontario, Canada.,Division of Geriatric Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - R G Tirona
- Lawson Health Research Institute, London, Ontario, Canada.,Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - C A Rupar
- Lawson Health Research Institute, London, Ontario, Canada.,Department of Biochemistry, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - G Zou
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.,Robarts Research Institute, Western University, London, Ontario, Canada
| | - R A Hegele
- Lawson Health Research Institute, London, Ontario, Canada.,Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada.,Robarts Research Institute, Western University, London, Ontario, Canada
| | - D Mahuran
- Laboratory of Medicine and Pathobiology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - P MacDonald
- Deparment of Clinical Neurological Science, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - M E Jenkins
- Lawson Health Research Institute, London, Ontario, Canada.,Deparment of Clinical Neurological Science, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - M Jog
- Lawson Health Research Institute, London, Ontario, Canada.,Deparment of Clinical Neurological Science, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - S H Pasternak
- Cognitive Neurology and Alzheimer's Disease Research Centre, Parkwood Institute - Main Building, Room A230, 550, Wellington Road, London, Ontario, N6G 0A7, Canada. .,Lawson Health Research Institute, London, Ontario, Canada. .,Deparment of Clinical Neurological Science, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada. .,Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada. .,Robarts Research Institute, Western University, London, Ontario, Canada.
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Dang Y, Zou G, Ling L. 6.3-O2Health status and predictors among workers in small and medium-sized enterprises in Guangdong, China: a cross-sectional mixed study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y Dang
- School of Public Health, Sun Yat-sen University, China
- Sun Yat-sen Centre for Migrant Health Policy (CMHP), China
| | - G Zou
- Institute for International Health and Development, Queen Margaret University, United Kingdom
| | - L Ling
- School of Public Health, Sun Yat-sen University, China
- Sun Yat-sen Centre for Migrant Health Policy (CMHP), China
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Dang Y, Zou G, Ling L. 7.5-O8Migration pattern and health service seeking behaviour among workers in small and medium-sized enterprises in Guangdong, China: a cross-sectional survey. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y Dang
- School of Public Health, Sun Yat-sen University, China
- Sun Yat-sen Center for Migrant Health Policy, Sun Yat-sen University, China
| | - G Zou
- Institute for International Health and Development, Queen Margaret University, United Kingdom
| | - L Ling
- School of Public Health, Sun Yat-sen University, China
- Sun Yat-sen Center for Migrant Health Policy, Sun Yat-sen University, China
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14
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Chai W, Zou G, Shi J, Chen W, Gong X, Wei X, Ling L. 7.4-O6Evaluation of the effectiveness of a WHO-5A’s model based comprehensive tobacco control program among migrant workers in Guangdong, China: a pilot study. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- W Chai
- Sun Yat-sen University, China
| | - G Zou
- Sun Yat-sen University, China
| | - J Shi
- Sun Yat-sen University, China
| | - W Chen
- Sun Yat-sen University, China
| | - X Gong
- Sun Yat-sen University, China
| | - X Wei
- University of Toronto, Canada
| | - L Ling
- Sun Yat-sen University, China
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15
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Warners MJ, Ambarus CA, Bredenoord AJ, Verheij J, Lauwers GY, Walsh JC, Katzka DA, Nelson S, van Viegen T, Furuta GT, Gupta SK, Stitt L, Zou G, Parker CE, Shackelton LM, D Haens GR, Sandborn WJ, Dellon ES, Feagan BG, Collins MH, Jairath V, Pai RK. Reliability of histologic assessment in patients with eosinophilic oesophagitis. Aliment Pharmacol Ther 2018; 47:940-950. [PMID: 29460418 DOI: 10.1111/apt.14559] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Revised: 01/21/2018] [Accepted: 01/21/2018] [Indexed: 01/13/2023]
Abstract
BACKGROUND The validity of the eosinophilic oesophagitis (EoE) histologic scoring system (EoEHSS) has been demonstrated, but only preliminary reliability data exist. AIM Formally assess the reliability of the EoEHSS and additional histologic features. METHODS Four expert gastrointestinal pathologists independently reviewed slides from adult patients with EoE (N = 45) twice, in random order, using standardised training materials and scoring conventions for the EoEHSS and additional histologic features agreed upon during a modified Delphi process. Intra- and inter-rater reliability for scoring the EoEHSS, a visual analogue scale (VAS) of overall histopathologic disease severity, and additional histologic features were assessed using intra-class correlation coefficients (ICCs). RESULTS Almost perfect intra-rater reliability was observed for the composite EoEHSS scores and the VAS. Inter-rater reliability was also almost perfect for the composite EoEHSS scores and substantial for the VAS. Of the EoEHSS items, eosinophilic inflammation was associated with the highest ICC estimates and consistent with almost perfect intra- and inter-rater reliability. With the exception of dyskeratotic epithelial cells and surface epithelial alteration, ICC estimates for the remaining EoEHSS items were above the benchmarks for substantial intra-rater, and moderate inter-rater reliability. Estimation of peak eosinophil count and number of lamina propria eosinophils were associated with the highest ICC estimates among the exploratory items. CONCLUSION The composite EoEHSS and most component items are associated with substantial reliability when assessed by central pathologists. Future studies should assess responsiveness of the score to change after a therapeutic intervention to facilitate its use in clinical trials.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - G R D Haens
- Amsterdam, The Netherlands.,London, ON, Canada
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16
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D'Haens GR, Sandborn WJ, Zou G, Stitt LW, Rutgeerts PJ, Gilgen D, Jairath V, Hindryckx P, Shackelton LM, Vandervoort MK, Parker CE, Muller C, Pai RK, Levchenko O, Marakhouski Y, Horynski M, Mikhailova E, Kharchenko N, Pimanov S, Feagan BG. Randomised non-inferiority trial: 1600 mg versus 400 mg tablets of mesalazine for the treatment of mild-to-moderate ulcerative colitis. Aliment Pharmacol Ther 2017; 46:292-302. [PMID: 28568974 DOI: 10.1111/apt.14164] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 01/16/2017] [Accepted: 05/04/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND High concentration mesalazine formulations are more convenient than conventional low concentration formulations for the treatment of ulcerative colitis (UC). AIM To compare the efficacy and safety of 1600 mg and 400 mg tablet mesalazine formulations. METHODS Patients with mild-to-moderate active UC (Mayo Clinic Score >5; N=817) were randomised to 3.2 g of oral mesalazine, administered as two 1600 mg tablets once, or four 400 mg tablets twice daily. We hypothesised that treatment with the 1600 mg tablet was non-inferior (within a 10% margin) to the 400 mg tablet for induction of clinical and endoscopic remission at week 8. Open-label treatment with the 1600 mg tablet continued for 26-30 weeks based on induction response. Predictors of treatment response were also explored. RESULTS At week 8, remission occurred in 22.4% and 24.6% of patients receiving the 1600 mg and 400 mg tablets, respectively (absolute difference -2.2%, 95% CI: -8.1% to 3.8%, non-inferiority P=.005). Endoscopic and histopathologic disease activity, leucocyte concentration and age were significantly associated with clinical remission (P=.022, .042, .014 and .023, respectively). At week 38, 43.9% (296/675) of patients who continued treatment with the 1600 mg formulation were in remission, including 70.3% (142/202) of patients who received a reduced dose of mesalazine (1.6 g/d). The overall incidence of serious adverse events was low. CONCLUSIONS Induction therapy with 3.2 mg mesalazine using two 1600 mg tablets once-daily was statistically and clinically non-inferior to a twice-daily regimen using four 400 mg tablets (NCT01903252).
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Affiliation(s)
- G R D'Haens
- Amsterdam, The Netherlands.,London, ON, Canada
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17
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Jairath V, Zou G, Parker CE, MacDonald JK, Mosli MH, AlAmeel T, Al Beshir M, AlMadi M, Al-Taweel T, Atkinson NSS, Biswas S, Chapman TP, Dulai PS, Glaire MA, Hoekman D, Kherad O, Koutsoumpas A, Minas E, Restellini S, Samaan MA, Khanna R, Levesque BG, D'Haens G, Sandborn WJ, Feagan BG. Systematic review with meta-analysis: placebo rates in induction and maintenance trials of Crohn's disease. Aliment Pharmacol Ther 2017; 45:1021-1042. [PMID: 28164348 DOI: 10.1111/apt.13973] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 07/08/2016] [Accepted: 01/16/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND Minimising placebo response is essential for drug development. AIM To conduct a meta-analysis to determine placebo response and remission rates in trials and identify the factors affecting these rates. METHODS MEDLINE, EMBASE and CENTRAL were searched from inception to April 2014 for placebo-controlled trials of pharmacological interventions for Crohn's disease. Placebo response and remission rates for induction and maintenance trials were pooled by random-effects and mixed-effects meta-regression models to evaluate effects of study-level characteristics on these rates. RESULTS In 100 studies containing 67 induction and 40 maintenance phases and 7638 participants, pooled placebo remission and response rates for induction trials were 18% [95% confidence interval (CI) 16-21%] and 28% (95% CI 24-32%), respectively. Corresponding values for maintenance trials were 32% (95% CI 25-39%) and 26% (95% CI 19-35%), respectively. For remission, trials enrolling patients with more severe disease activity, longer disease duration and more study centres were associated with lower placebo rates, whereas more study visits and longer study duration was associated with higher placebo rates. For response, findings were opposite such that trials enrolling patients with less severe disease activity and longer study duration were associated with lower placebo rates. Placebo rates varied by drug class and route of administration, with the highest placebo response rates observed for biologics. CONCLUSIONS Placebo rates vary according to whether trials are designed for induction or maintenance and the factors influencing them differ for the endpoints of remission and response. These findings have important implications for clinical trial design in Crohn's disease.
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Affiliation(s)
| | | | | | | | - M H Mosli
- London, ON, Canada.,Jeddah, Saudi Arabia
| | | | | | | | | | | | | | | | - P S Dulai
- London, ON, Canada.,La Jolla, CA, USA
| | | | | | | | | | | | | | | | | | | | - G D'Haens
- London, ON, Canada.,Amsterdam, The Netherlands
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18
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Campbell D, Gorey KM, Luginaah IN, Zou G, Hamm C, Holowaty EJ. Gender differences on the interacting effects of marital status and health insurance on long-term colon cancer survival in California, 1995-2014. Public Health 2016; 140:258-260. [PMID: 27506641 PMCID: PMC5118043 DOI: 10.1016/j.puhe.2016.07.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Accepted: 07/12/2016] [Indexed: 10/21/2022]
Abstract
Objectives Long-term colon cancer survival is not well explained by main effects. We explored the interaction of age, gender, marital status, health insurance and poverty on 10-year colon cancer survival. Methods California registry data were analyzed for 5,776 people diagnosed from 1995 to 2000; followed until 2014. Census data classified neighborhood poverty. We tested interactions with regressions and described them with standardized rates and rate ratios (RR). Results The 5-way interaction was significant, suggesting larger 4-way disadvantages among non-Medicare-eligible people. A significant 4-way interaction was a 3-way interaction in non-high poverty neighborhoods only. Private insurance was protective for unmarried men (RR = 1.60) but not women, while it was protective for married women (RR = 1.22) but not men. This pattern seemed explained by lower-incomes of certain groups of unmarried women and married men and more prevalent underinsuring of unmarried men. Conclusions Structural inequities related to the institutions of marriage and health care seem to affect women and men quite differently. Policy makers ought to be cognizant of such structural imbalances as future reforms of American health care are considered.
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Affiliation(s)
- D Campbell
- School of Social Work, University of Windsor, Windsor, Ontario, Canada
| | - K M Gorey
- School of Social Work, University of Windsor, 167 Ferry Street, Windsor, Ontario N9A 0C5, Canada.
| | - I N Luginaah
- Department of Geography, Western University, London, Ontario, Canada
| | - G Zou
- Department of Epidemiology and Biostatistics and Robarts Research Institute, Western University, London, Ontario, Canada
| | - C Hamm
- Windsor Regional Cancer Center and Department of Oncology, Division of Medical Oncology, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - E J Holowaty
- Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
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19
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Yan Q, Jiang H, Wang B, Sui W, Zhou H, Zou G. Expression and Significance of RANTES and MCP-1 in Renal Tissue With Chronic Renal Allograft Dysfunction. Transplant Proc 2016; 48:2034-9. [DOI: 10.1016/j.transproceed.2016.05.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2016] [Accepted: 05/04/2016] [Indexed: 12/01/2022]
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20
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Bailly B, Richard CA, Sharma G, Wang L, Johansen L, Cao J, Pendharkar V, Sharma DC, Galloux M, Wang Y, Cui R, Zou G, Guillon P, von Itzstein M, Eléouët JF, Altmeyer R. Targeting human respiratory syncytial virus transcription anti-termination factor M2-1 to inhibit in vivo viral replication. Sci Rep 2016; 6:25806. [PMID: 27194388 PMCID: PMC4872165 DOI: 10.1038/srep25806] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Accepted: 04/22/2016] [Indexed: 01/05/2023] Open
Abstract
Human respiratory syncytial virus (hRSV) is a leading cause of acute lower respiratory tract infection in infants, elderly and immunocompromised individuals. To date, no specific antiviral drug is available to treat or prevent this disease. Here, we report that the Smoothened receptor (Smo) antagonist cyclopamine acts as a potent and selective inhibitor of in vitro and in vivo hRSV replication. Cyclopamine inhibits hRSV through a novel, Smo-independent mechanism. It specifically impairs the function of the hRSV RNA-dependent RNA polymerase complex notably by reducing expression levels of the viral anti-termination factor M2-1. The relevance of these findings is corroborated by the demonstration that a single R151K mutation in M2-1 is sufficient to confer virus resistance to cyclopamine in vitro and that cyclopamine is able to reduce virus titers in a mouse model of hRSV infection. The results of our study open a novel avenue for the development of future therapies against hRSV infection.
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Affiliation(s)
- B Bailly
- Institut Pasteur of Shanghai - Chinese Academy of Sciences, Unit of anti-infective research, Shanghai, 200031, P.R. China.,Institute for Glycomics, Griffith University, Gold Coast Campus, Gold Coast, QLD 4222, Australia.,Shandong University-Helmholtz Institute of Biotechnology, Qingdao, 266101, P.R. China
| | - C-A Richard
- INRA, Unité de Virologie et Immunologie Moléculaires (UR892), Jouy-en-Josas, 78352, France
| | - G Sharma
- CombinatoRx-Singapore, 138667, Singapore
| | - L Wang
- Institut Pasteur of Shanghai - Chinese Academy of Sciences, Unit of anti-infective research, Shanghai, 200031, P.R. China
| | | | - J Cao
- Shandong University-Helmholtz Institute of Biotechnology, Qingdao, 266101, P.R. China.,Qingdao Municipal Center for Disease Control &Prevention, Qingdao, 266033, P.R. China
| | | | - D-C Sharma
- CombinatoRx-Singapore, 138667, Singapore
| | - M Galloux
- INRA, Unité de Virologie et Immunologie Moléculaires (UR892), Jouy-en-Josas, 78352, France
| | - Y Wang
- Institut Pasteur of Shanghai - Chinese Academy of Sciences, Unit of anti-infective research, Shanghai, 200031, P.R. China
| | - R Cui
- Institut Pasteur of Shanghai - Chinese Academy of Sciences, Unit of anti-infective research, Shanghai, 200031, P.R. China
| | - G Zou
- Institut Pasteur of Shanghai - Chinese Academy of Sciences, Unit of anti-infective research, Shanghai, 200031, P.R. China
| | - P Guillon
- Institute for Glycomics, Griffith University, Gold Coast Campus, Gold Coast, QLD 4222, Australia
| | - M von Itzstein
- Institute for Glycomics, Griffith University, Gold Coast Campus, Gold Coast, QLD 4222, Australia
| | - J-F Eléouët
- INRA, Unité de Virologie et Immunologie Moléculaires (UR892), Jouy-en-Josas, 78352, France
| | - R Altmeyer
- Institut Pasteur of Shanghai - Chinese Academy of Sciences, Unit of anti-infective research, Shanghai, 200031, P.R. China.,Institute for Glycomics, Griffith University, Gold Coast Campus, Gold Coast, QLD 4222, Australia.,Shandong University-Helmholtz Institute of Biotechnology, Qingdao, 266101, P.R. China.,CombinatoRx-Singapore, 138667, Singapore.,CombinatoRx, Cambridge, MA 02142, USA.,Qingdao Municipal Center for Disease Control &Prevention, Qingdao, 266033, P.R. China
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21
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Zou G, Zeng Z, Chen W, Ling L. Self-reported illnesses and service utilisation among migrants working in small-to medium sized enterprises in Guangdong, China. Public Health 2015; 129:970-8. [PMID: 26077388 DOI: 10.1016/j.puhe.2015.04.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 04/06/2015] [Accepted: 04/22/2015] [Indexed: 10/23/2022]
Abstract
OBJECTIVES As one of the most vulnerable populations in China, many migrants work in the small-to-medium-sized enterprises (SMEs). This study aims to describe the self-reported illnesses and service utilization of the migrants working in the SMEs in Pearl River Delta Areas (PRDA) of Guangdong province, China. STUDY DESIGN Cross-sectional survey. METHODS We interviewed 856 migrants working in the SMEs of different manufacturing industries in 2012. Descriptive analysis was employed to report self-reported illnesses and service utilisation among migrants in the last two weeks and in the last year. Statistical tests such as χ2 test were used to explore factors influencing their service utilisation. RESULTS In the last two weeks, 91(11%) of the respondents reported having any illness. The most reported illness was respiratory problem (69%), while 9.9%, 7.7% and 13% reported having digestive, skin and other problems respectively. The most important symptom was cough (39%). Thirty-seven percent of the respondents who reported any illness had visited health facilities. The lower income group were more likely to visit health facilities than the higher income group (P = 0.006). The most reported reason for not visiting health facilities was 'feeling not serious' (65%). In the last year, 13% reported having respiratory problems and 7.8% reported accidental injuries. Less than 3% received hospitalization care. The proportion of those without hospitalization to those who should have been hospitalized was 31%. CONCLUSION Underuse of the health service among migrants working in the SMEs could be associated with the 'healthy migrant' effect. However, when assessed among the ill migrants in the SMEs, the utilisation rate was still low mainly due to their poor health awareness. Improving their risk perception and integration of occupational and general health service is crucial to improve the health conditions and utilisation of service among migrants in the SMES.
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Affiliation(s)
- G Zou
- Sun Yat-sen Center for Migrant Health Policy, Sun Yat-sen University, Guangzhou, China; Institute for International Health and Development, Queen Margaret University, Edinburgh, UK
| | - Z Zeng
- Sun Yat-sen Center for Migrant Health Policy, Sun Yat-sen University, Guangzhou, China; Hunan Provincial Women and Children's Hospital, Changsha, Hunan, China
| | - W Chen
- Sun Yat-sen Center for Migrant Health Policy, Sun Yat-sen University, Guangzhou, China; Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - L Ling
- Sun Yat-sen Center for Migrant Health Policy, Sun Yat-sen University, Guangzhou, China; Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China.
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22
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Lin L, Huang H, Sivayoganathan M, Liu L, Zou G, Duley WW, Zhou Y. Assembly of silver nanoparticles on nanowires into ordered nanostructures with femtosecond laser radiation. Appl Opt 2015; 54:2524-2531. [PMID: 25968544 DOI: 10.1364/ao.54.002524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 02/16/2015] [Indexed: 06/04/2023]
Abstract
In this work, we show that well-ordered structures of silver nanoparticles on nanowire substrates can be produced by irradiation with femtosecond (fs) laser pulses at fluences ranging from 10.3 to 15.9 mJ/cm2 if the direction of polarization is parallel to the long axis of the nanowire. Experimental results show that a uniformly spaced distribution of nanoparticles is more readily produced on nanowires with lengths L≤2λ, where λ=800 nm is the laser wavelength. The distribution of nanoparticles is found to become less well organized as L≥2λ. Finite element method simulations, combined with experimental observations, indicate that nanoparticles are initially distributed in response to the electric field along the clean Ag nanowire arising from optical excitation. This electric field is responsible for the attraction of nanoparticles to certain locations on the nanowire. We show how a fs-laser-driven assembly of nanoparticles on nanowires can be used in the development of a nanoscale optical logic processor. This method of creating periodic arrays of metallic nanoparticles on nanowire substrates then has many possible applications in electro-optics.
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Zou G, Papirio S, van Hullebusch ED, Puhakka JA. Fluidized-bed denitrification of mining water tolerates high nickel concentrations. Bioresour Technol 2015; 179:284-290. [PMID: 25549902 DOI: 10.1016/j.biortech.2014.12.044] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 11/03/2014] [Revised: 12/11/2014] [Accepted: 12/12/2014] [Indexed: 05/14/2023]
Abstract
This study revealed that fluidized-bed denitrifying cultures tolerated soluble Ni concentrations up to 500 mg/L at 7-8 and 22°C. From 10 to 40 mg/L of feed Ni, denitrification resulted in complete nitrate and nitrite removal. The concomitant reduction of 30 mg/L of sulfate produced 10 mg/L of sulfide that precipitated nickel, resulting in soluble effluent Ni below 22 mg/L. At this stage, Dechloromonas species were the dominant denitrifying bacteria. From 60 to 500 mg/L of feed Ni, nickel remained in solution due to the inhibition of sulfate reduction. At soluble 60 mg/L of Ni, denitrification was partially inhibited prior to recover after 34 days of enrichment by other Ni-tolerant species (including Delftia, Zoogloea and Azospira) that supported Dechloromonas. Subsequently, the FBR cultures completely removed nitrate even at 500 mg/L of Ni. Visual Minteq speciation model predicted the formation of NiS, NiCO3 and Ni3(PO4)2, whilst only Ni3(PO4)2 was detected by XRD.
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Affiliation(s)
- G Zou
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FIN-33101 Tampere, Finland.
| | - S Papirio
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FIN-33101 Tampere, Finland
| | - E D van Hullebusch
- Université Paris-Est, Laboratoire Géomatériaux et Environnement (EA 4508), UPEM, 77454 Marne-la-Vallée, France
| | - J A Puhakka
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FIN-33101 Tampere, Finland
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24
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Khanna R, Zou G, D'Haens G, Feagan BG, Sandborn WJ, Vandervoort MK, Rolleri RL, Bortey E, Paterson C, Forbes WP, Levesque BG. A retrospective analysis: the development of patient reported outcome measures for the assessment of Crohn's disease activity. Aliment Pharmacol Ther 2015; 41:77-86. [PMID: 25348809 DOI: 10.1111/apt.13001] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 08/31/2014] [Accepted: 10/02/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND The Crohn's Disease Activity Index (CDAI) is a measure of disease activity based on symptoms, signs and a laboratory test. The US Food and Drug Administration has indicated that patient reported outcomes (PROs) should be the primary outcome in randomised controlled trials for Crohn's disease (CD). AIM As no validated PRO exists for CD, to investigate whether CDAI diary card items could be modified for this purpose. METHODS Data from a trial of rifaximin-extended intestinal release were used to identify cut-points for stool frequency, pain and general well-being using receiver operating characteristic curves with CDAI <150 as criterion. The operating properties of 2- and 3-item PRO were evaluated using data from a trial of methotrexate in CD. Regression analysis determined PRO2 and PRO3 scores that correspond to CDAI-defined thresholds of 150, 220 and 450 and changes of 50, 70 and 100 points. RESULTS Optimum cut-points for CDAI remission were mean daily stool frequency ≤1.5, abdominal pain ≤1, and general well-being score of ≤1 (areas under the ROC curve 0.79, 0.91 and 0.89, respectively). The effect estimates were similar using 2- and 3-item PROs or CDAI. PRO2 and PRO3 values corresponding to CDAI scores of 150, 220 and 450 points were 8, 14, 34 and 13, 22, 53. The corresponding values for CDAI changes of 50, 70 and 100, were 2, 5, 8 and 5, 9, 14. Responsiveness to change was similar for both PROs. CONCLUSION Patient reported outcomes derived from CDAI diary items may be appropriate for use in clinical trials for CD.
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Affiliation(s)
- R Khanna
- Department of Medicine, University of Western Ontario, London, ON, Canada; Robarts Clinical Trials Inc., University of Western Ontario, London, ON, Canada
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25
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Papirio S, Zou G, Ylinen A, Di Capua F, Pirozzi F, Puhakka JA. Effect of arsenic on nitrification of simulated mining water. Bioresour Technol 2014; 164:149-54. [PMID: 24852647 DOI: 10.1016/j.biortech.2014.04.072] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [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: 02/24/2014] [Revised: 04/16/2014] [Accepted: 04/21/2014] [Indexed: 05/27/2023]
Abstract
Mining and mineral processing of gold-bearing ores often release arsenic to the environment. Ammonium is released when N-based explosives or cyanide are used. Nitrification of simulated As-rich mining waters was investigated in batch bioassays using nitrifying cultures enriched in a fluidized-bed reactor (FBR). Nitrification was maintained at 100mg AsTOT/L. In batch assays, ammonium was totally oxidized by the FBR enrichment in 48 h. As(III) oxidation to As(V) occurred during the first 3h attenuating arsenic toxicity to nitrification. At 150 and 200mg AsTOT/L, nitrification was inhibited by 25%. Candidatus Nitrospira defluvii and other nitrifying species mainly colonized the FBR. In conclusion, the FBR enriched cultures of municipal activated sludge origins tolerated high As concentrations making nitrification a potent process for mining water treatment.
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Affiliation(s)
- S Papirio
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FIN-33101 Tampere, Finland.
| | - G Zou
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FIN-33101 Tampere, Finland
| | - A Ylinen
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FIN-33101 Tampere, Finland
| | - F Di Capua
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FIN-33101 Tampere, Finland; Department of Civil, Architectural and Environmental Engineering, University of Napoli "Federico II", 80125 Napoli, Italy
| | - F Pirozzi
- Department of Civil, Architectural and Environmental Engineering, University of Napoli "Federico II", 80125 Napoli, Italy
| | - J A Puhakka
- Department of Chemistry and Bioengineering, Tampere University of Technology, P.O. Box 541, FIN-33101 Tampere, Finland
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Levesque BG, Greenberg GR, Zou G, Sandborn WJ, Singh S, Hauenstein S, Ohrmund L, Wong CJ, Stitt LW, Shackelton LM, King D, Lockton S, Ducharme J, Feagan BG. A prospective cohort study to determine the relationship between serum infliximab concentration and efficacy in patients with luminal Crohn's disease. Aliment Pharmacol Ther 2014; 39:1126-35. [PMID: 24689499 DOI: 10.1111/apt.12733] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/23/2013] [Revised: 11/21/2013] [Accepted: 03/14/2014] [Indexed: 12/08/2022]
Abstract
BACKGROUND Patients with Crohn's disease (CD) may experience disease relapse on maintenance infliximab. Anti-drug antibodies likely contribute to loss of response, and serum infliximab levels likely correlate with efficacy. AIM To prospectively evaluate the relationship between trough serum infliximab concentration and disease activity. METHODS Adult patients (N = 327) with a diagnosis of CD who had received at least five consecutive infliximab infusions and who planned to receive at least two additional infusions were enrolled. The Crohn's Disease Activity Index (CDAI), serum infliximab, C-reactive protein (CRP) and antibodies-to-infliximab (ATI) were assessed at baseline, week 4 and week 8. Receiver operating characteristic (ROC) analysis examined the relationship between infliximab concentrations and disease activity. RESULTS The mean CDAI score, which decreased 1.05 points between infusions, did not correlate with the mean change in trough infliximab concentration (+0.39 μg/mL; r = 0.099, P = 0.083), but was associated with the mean change in CRP concentration (r = 0.19, P < 0.001). Trough infliximab concentrations below 2.8-4.6 μg/mL best predicted a ≥ 70 point increase in the CDAI between infusions, and those below 2.7-2.8 μg/mL best predicted CRP >5 mg/mL at the second infusion. ATI at either visit decreased the proportion of patients with therapeutic infliximab trough levels compared with patients who were ATI negative (17.5% vs. 77.3% at visit 1 and 13.8% vs. 75.6% at visit 3; P < 0.001 for both comparisons). CONCLUSIONS This prospective study confirms the relationship between trough infliximab concentrations, inflammation and antibodies-to-infliximab. Infliximab trough concentrations below 3 μg/mL may increase the likelihood of symptoms and inflammation (ClinicalTrials.gov identifier: NCT00676988).
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Affiliation(s)
- B G Levesque
- Robarts Clinical Trials, Inc., Robarts Research Institute, Western University, London, ON, Canada; Division of Gastroenterology, University of California San Diego, La Jolla, CA, USA
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Zou G, Wei X, Witter S, Yin J, Walley J, Liu S, Yang H, Chen J, Tian G, Mei J. Incremental cost-effectiveness of improving treatment results among migrant tuberculosis patients in Shanghai. Int J Tuberc Lung Dis 2014; 17:1056-64. [PMID: 23827030 DOI: 10.5588/ijtld.12.0799] [Citation(s) in RCA: 10] [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
SETTING Two projects were introduced in October 2007 to improve treatment completion among rural-to-urban migrant tuberculosis (TB) patients in Shanghai. The Communicable Disease Research Consortium (COMDIS) project provided financial incentives to poor patients, whereas the Global Fund to Fight AIDS, Tuberculosis and Malaria (Global Fund) project provided incentives to all patients and increased staff time. OBJECTIVE To assess the incremental cost-effectiveness of these two projects. METHODS Case study. Costs were assessed from a societal perspective. The primary measure of effectiveness was the treatment completion rate. The incremental cost-effectiveness ratio was calculated as the additional cost of the intervention divided by the additional percentage of patients completing treatment compared to controls. RESULTS Post intervention, the treatment completion rates in the COMDIS and Global Fund projects were respectively 89% and 88%, 17% and 16% higher than in the control district (76%). For one additional per cent of patients to complete treatment, the additional cost of the COMDIS intervention was US$1891, 91% lower than that of the Global Fund intervention (US$21,904). CONCLUSION The intervention that addressed the financial barriers of poor patients was more cost-effective than the comprehensive intervention that provided assistance to both patients and providers. Further study is needed to understand the process of interventions prior to wider scale-up.
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Affiliation(s)
- G Zou
- Communicable Disease Research Consortium China Programme, Nuffield Centre for International Health and Development, University of Leeds, Shenzhen, China
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Liu J, Zou G, Wu Y, Li W. Clinical research of patients with multiple organ dysfunction syndrome induced by severe heat stroke: nine case reports and literature review. Crit Care 2014. [PMCID: PMC4068185 DOI: 10.1186/cc13264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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30
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Papirio S, Ylinen A, Zou G, Peltola M, Esposito G, Puhakka JA. Fluidized-bed denitrification for mine waters. Part I: low pH and temperature operation. Biodegradation 2013; 25:425-35. [DOI: 10.1007/s10532-013-9671-0] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Accepted: 10/24/2013] [Indexed: 11/29/2022]
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Chen X, He H, Zou G, Zhang X, Gu X, Hua J. Ricci Flow-based Spherical Parameterization and Surface Registration. Comput Vis Image Underst 2013; 117:1107-1118. [PMID: 24019739 PMCID: PMC3765039 DOI: 10.1016/j.cviu.2013.02.010] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This paper presents an improved Euclidean Ricci flow method for spherical parameterization. We subsequently invent a scale space processing built upon Ricci energy to extract robust surface features for accurate surface registration. Since our method is based on the proposed Euclidean Ricci flow, it inherits the properties of Ricci flow such as conformality, robustness and intrinsicalness, facilitating efficient and effective surface mapping. Compared with other surface registration methods using curvature or sulci pattern, our method demonstrates a significant improvement for surface registration. In addition, Ricci energy can capture local differences for surface analysis as shown in the experiments and applications.
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Affiliation(s)
- X. Chen
- State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China, 100090
| | - H. He
- State Key Laboratory of Management and Control for Complex Systems, Institute of Automation, Chinese Academy of Sciences, Beijing, China, 100090
| | - G. Zou
- Department of Computer Science, Wayne State University, Detroit, Michigan, USA, 48202
| | - X. Zhang
- National Laboratory of Pattern Recognition (NLPR), Institute of Automation, Chinese Academy of Sciences, Beijing, China, 100090
| | - X. Gu
- Department of Computer Science, State University of New York at Stony Brook, USA
| | - J. Hua
- Department of Computer Science, Wayne State University, Detroit, Michigan, USA, 48202
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Zou G, Chetty I, Jin J. SU-E-J-05: Intrinsic Geometry Reconstruction for the Study of Geometric Variations in Linac-Based CBCT System. Med Phys 2013. [DOI: 10.1118/1.4814217] [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: 11/07/2022] Open
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Zou G, Ren L, Kim J, Jaffray D, Chetty I, Jin J. WE-G-141-07: Feasibility of Using a Grid to Detect and Correct the Geometric Variations in Flat-Panel Based Cone Beam CT. Med Phys 2013. [DOI: 10.1118/1.4815658] [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: 11/07/2022] Open
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Nakai S, Zou G, Okuda T, Nishijima W, Hosomi M, Okada M. Polyphenols and fatty acids responsible for anti-cyanobacterial allelopathic effects of submerged macrophyte Myriophyllum spicatum. Water Sci Technol 2012; 66:993-999. [PMID: 22797226 DOI: 10.2166/wst.2012.272] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Myriophyllum spicatum is known to inhibit the growth of cyanobacteria such as Microcystis aeruginosa by releasing anti-cyanobacterial allelochemicals. The allelochemicals possibly responsible for the inhibition include five polyphenols and three fatty acids, but the extent to which these are indeed responsible for the anti-cyanobacterial effects is unclear. The goal of this research was to determine the contribution of these compounds to the allelopathic effect of M. spicatum on M. aeruginosa. We first collected information on the release rates of these compounds and then added the compounds to a cyanobacterial medium on the basis of their release rates so as to simulate their excretion by M. spicatum. Addition of the polyphenols and fatty acids inhibited the growth of M. aeruginosa, and the interaction of the polyphenols and fatty acids was additive. The EC50 of a polyphenol and fatty acid mixture was compared with that of M. spicatum itself as previously determined in a mixed culture system in which M. spicatum and M. aeruginosa were incubated. The former was about 1.9 times higher than that of the latter, the implication being that the inhibitory effect of the polyphenols and fatty acids contributed about 53% of the allelopathic effect of M. spicatum. This paper is the first to describe allelochemicals that account for a half of the anti-cyanobacterial allelopathic effect of a macrophyte.
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Affiliation(s)
- S Nakai
- Graduate School of Engineering, Hiroshima University, Higashi-hiroshima 739-8527, Japan.
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35
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Zhang X, Zou G. Study on crack of Yb:YAG laser crystal. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311089033] [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: 11/11/2022] Open
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Zhang X, Zou G, Li C, Liu J. Synthesis of ytterbium-doped yttrium aluminum garnet nanopowders by carbonate altogether precipitation methods. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311089021] [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: 11/10/2022] Open
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Abstract
For silver carp (Hypophthalmichthys molitrix), a combined microsatellite (or simple sequence repeat) and amplified fragment length polymorphism (AFLP) sex average linkage map was constructed. A total of 483 markers (245 microsatellites and 238 AFLPs) were assigned to 33 linkage groups. The map spanned 1352.2 cM, covering 86.4% of the estimated genome size of silver carp. The maximum and average spaces between 420 loci were 21.5 cM and 3.2 cM, respectively. The length of linkage groups ranged from 3.6 cM to 98.5 cM with an average of 41.0 cM. The number of markers per group varied from 2 to 44 with an average of 14.6. The AFLP markers significantly improved the integrity of microsatellite-based linkage groups and increased the genome coverage and marker evenness. A genome-wide recombination suppression was observed in male. In an extreme case, six microsatellites co-segregated in male, but spanned a 45.1 cM region in female.
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Affiliation(s)
- L Zhang
- College of Marine Life Sciences, Ocean University of China, Qingdao, China
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Abstract
Two-stage design is a cost effective approach for identifying disease genes in genetic studies and it has received much attention recently. In general, there are two types of two-stage designs that differ on the methods and samples used to measure allele frequencies in the first stage: (1) Individual genotyping is used in the first stage; (2) DNA pooling is used in the first stage. In this paper, we focus on the latter. Zuo et al. (2006) investigated statistical power of such a design, among other things, but the cost of the study was not taken into account. The purpose of this paper is to study the optimal design under the given overall cost. We investigate how to allocate the resources to the two stages. Note that in addition to the measurement errors associated with DNA pooling, genotyping errors are also unavoidable with individual genotyping. Therefore, we discuss the optimal design combining genotyping errors associated with individual genotyping. The joint statistical distributions of test statistics in the first and second stages are derived. For a fixed cost, our results show that the optimal design requires no additional samples in the second stage but only that the samples in the first stage be re-used. When the second stage uses an entirely independent sample, however, the optimal design under a given cost depends on the population allele frequency and allele frequency difference between the case and control groups. For the current genotyping costs, we can roughly allocate 1/3 to 1/2 of the total sample size to the first stage for screening.
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Affiliation(s)
- Y Zuo
- Department of Statistics and Probability, Michigan State University, East Lansing, MI 48824, USA
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Liao M, Zhang L, Yang G, Zhu M, Wang D, Wei Q, Zou G, Chen D. Development of silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis) genetic maps using microsatellite and AFLP markers and a pseudo-testcross strategy. Anim Genet 2007; 38:364-70. [PMID: 17614988 DOI: 10.1111/j.1365-2052.2007.01617.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis) are two of the four most important pond-cultured fish species inhabiting the major river basins of China. In the present study, genetic maps of silver carp and bighead carp were constructed using microsatellite and AFLP markers and a two-way pseudo-testcross strategy. To create the maps, 60 individuals were obtained from a cross of a single bighead carp (female) and a single silver carp (male). The silver carp map consisted of 271 markers (48 microsatellites and 223 AFLPs) that were assembled into 27 linkage groups, of which 22 contained at least four markers. The total length of the silver carp map was 952.2 cM, covering 82.8% of the estimated genome size. The bighead carp map consisted of 153 markers (27 microsatellites and 126 AFLPs) which were organized into 30 linkage groups, of which 19 contained at least four markers. The total length of the bighead carp map was 852.0 cM, covering 70.5% of the estimated genome size. Eighteen microsatellite markers were common to both maps. These maps will contribute to discovery of genes and genetic regions controlling traits in the two species of carp.
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Affiliation(s)
- M Liao
- College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
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40
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Hong H, Wang L, Zou G. Retention in RP-HPLC: Lipophilicity Determination of Substituted Biphenyls by Reversed-Phase High Performance Liquid Chromatography. J LIQ CHROMATOGR R T 2006. [DOI: 10.1080/10826079708006578] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- H. Hong
- a Department of Environmental Science & Engineering , Nanjing University Nanjing , 210093, P. R., China
| | - L. Wang
- a Department of Environmental Science & Engineering , Nanjing University Nanjing , 210093, P. R., China
| | - G. Zou
- b Department of Chemistry , Nanjing University Nanjing , 210093, P. R., China
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Li C, Zou G, Bian H, Ju X. [Summarization of studies on Chinese marine medicinal animal Syngnthus acus]. Zhong Yao Cai 2001; 24:686-8. [PMID: 11799784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Syngnthus acus L. is a kind of very important traditional Chinese-medicine from sea. It has plentiful amino acid, protein, trace element, poly-carbon non-saturation fat acid, etc. Syngnthus acus has sexual-hormones-like, anti-cancer and resisting fatigue effects; It can resist fatigue. It can also improve organism immunity and enhance the systolic strength of heart muscle. It can be widely used in many fields such as food field, medical field and aquatic products industry. Its classification, resources, chemical composition and its medical value have been summarized in this article.
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Affiliation(s)
- C Li
- Life Sciences College of Wuhan University, Wuhan 430072
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44
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Waber DP, Shapiro BL, Carpentieri SC, Gelber RD, Zou G, Dufresne A, Romero I, Tarbell NJ, Silverman LB, Sallan SE. Excellent therapeutic efficacy and minimal late neurotoxicity in children treated with 18 grays of cranial radiation therapy for high-risk acute lymphoblastic leukemia: a 7-year follow-up study of the Dana-Farber Cancer Institute Consortium Protocol 87-01. Cancer 2001; 92:15-22. [PMID: 11443604 DOI: 10.1002/1097-0142(20010701)92:1<15::aid-cncr1286>3.0.co;2-w] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND In the current study, the authors evaluated late neuropsychologic effects 7 years after diagnosis and the long-term survival in a cohort of patients treated for high-risk childhood acute lymphoblastic leukemia (ALL) with cranial radiation therapy. Efficacy and toxicity were evaluated in relation to patient age at diagnosis (age < or > or = 36 months). METHODS Two hundred and one patients treated for high-risk ALL on the Dana-Farber Cancer Institute Consortium Protocol 87-01 were included, 147 of whom were in continuous complete disease remission and were eligible for cognitive testing. Sixty-one patients consented to undergo testing. All patients received 18 grays (Gy) of cranial radiation as a component of central nervous system treatment. RESULTS For all 201 patients, the 5-year overall survival (% +/- the standard error) was 82% +/- 2 and the 5-year event-free survival (% +/- the standard error) was 75% +/- 3. Only two patients developed a central nervous system recurrence. Intelligence quotient (IQ) and memory were at the expected mean for age, but performance on a complex figure drawing task was found to be reduced. Children who were age < 36 months at the time of diagnosis were found to have an IQ in the average range, but showed verbal deficits. CONCLUSIONS The results of the current study demonstrate excellent efficacy of therapy and relatively limited late neurotoxicity on a childhood ALL therapy protocol in which all evaluated patients had received 18 Gy of cranial radiation. Efficacious therapy that includes cranial radiation does not appear to necessarily incur a heightened risk for significant cognitive impairment.
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Affiliation(s)
- D P Waber
- Division of Psychology, The Children's Hospital, Boston, Massachusetts 02115, USA.
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45
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Yuen AR, Zou G, Turrisi AT, Sause W, Komaki R, Wagner H, Aisner SC, Livingston RB, Blum R, Johnson DH. Similar outcome of elderly patients in intergroup trial 0096: Cisplatin, etoposide, and thoracic radiotherapy administered once or twice daily in limited stage small cell lung carcinoma. Cancer 2000. [PMID: 11064352 DOI: 10.1002/1097-0142(20001101)89:9<1953::aid-cncr11>3.3.co;2-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Elderly patients comprise a significant portion of patients with limited stage small cell lung carcinoma. However, the prognostic importance of age has been controversial, and concern for toxicity often hinders enthusiasm for offering full dose therapy. METHODS In this retrospective analysis of Intergroup Trial 0096, the authors compared the outcome of patients 70 years or older to those younger than 70 years. Patients received cisplatin 60 mg/m(2), Day 1 and etoposide 120 mg/m(2), Days 1-3 for 4 cycles and either once or twice daily concurrent thoracic radiotherapy to 45 grays. RESULTS Of 381 patients, 50 (13%) were age 70 years or older. The elderly group did not differ significantly from those younger than 70 years with respect to gender distribution, performance status, or weight loss. Severe hematologic toxicity (Grade 4-5: 61% vs. 84%; P < 0.01) and fatal toxicity (1% vs. 10%; P = 0.01) occurred more often among older patients. There were no differences in the frequency of nonhematologic toxicities. Response rate (88% vs. 80%; P = 0.11), event free survival rate (5 year, 19% vs. 16%; P = 0.18), time to local failure, and duration of response did not differ between groups. Overall survival rates (5 year, 22% vs. 16%; P = 0.05) favored those younger than 70 years. Much of the difference in overall survival rates between age groups occurred within the first 6 months on study. CONCLUSIONS Elderly patients had similar response and survival rates compared with those younger than 70 years. However, toxicity, particularly hematologic, was greater among the elderly. Selected older patients, such as those with a good performance status, should be considered for optimum treatment approaches.
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Affiliation(s)
- A R Yuen
- Stanford University Medical Center, Stanford, California, USA
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Yuen AR, Zou G, Turrisi AT, Sause W, Komaki R, Wagner H, Aisner SC, Livingston RB, Blum R, Johnson DH. Similar outcome of elderly patients in intergroup trial 0096: Cisplatin, etoposide, and thoracic radiotherapy administered once or twice daily in limited stage small cell lung carcinoma. Cancer 2000. [PMID: 11064352 DOI: 10.1002/1097-0142(20001101)89: 9<1953: : aid-cncr11>3.3.co; 2-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND Elderly patients comprise a significant portion of patients with limited stage small cell lung carcinoma. However, the prognostic importance of age has been controversial, and concern for toxicity often hinders enthusiasm for offering full dose therapy. METHODS In this retrospective analysis of Intergroup Trial 0096, the authors compared the outcome of patients 70 years or older to those younger than 70 years. Patients received cisplatin 60 mg/m(2), Day 1 and etoposide 120 mg/m(2), Days 1-3 for 4 cycles and either once or twice daily concurrent thoracic radiotherapy to 45 grays. RESULTS Of 381 patients, 50 (13%) were age 70 years or older. The elderly group did not differ significantly from those younger than 70 years with respect to gender distribution, performance status, or weight loss. Severe hematologic toxicity (Grade 4-5: 61% vs. 84%; P < 0.01) and fatal toxicity (1% vs. 10%; P = 0.01) occurred more often among older patients. There were no differences in the frequency of nonhematologic toxicities. Response rate (88% vs. 80%; P = 0.11), event free survival rate (5 year, 19% vs. 16%; P = 0.18), time to local failure, and duration of response did not differ between groups. Overall survival rates (5 year, 22% vs. 16%; P = 0.05) favored those younger than 70 years. Much of the difference in overall survival rates between age groups occurred within the first 6 months on study. CONCLUSIONS Elderly patients had similar response and survival rates compared with those younger than 70 years. However, toxicity, particularly hematologic, was greater among the elderly. Selected older patients, such as those with a good performance status, should be considered for optimum treatment approaches.
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Affiliation(s)
- A R Yuen
- Stanford University Medical Center, Stanford, California, USA
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47
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Yuen AR, Zou G, Turrisi AT, Sause W, Komaki R, Wagner H, Aisner SC, Livingston RB, Blum R, Johnson DH. Similar outcome of elderly patients in intergroup trial 0096: Cisplatin, etoposide, and thoracic radiotherapy administered once or twice daily in limited stage small cell lung carcinoma. Cancer 2000; 89:1953-60. [PMID: 11064352 DOI: 10.1002/1097-0142(20001101)89:9<1953::aid-cncr11>3.3.co;2-y] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.2] [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: 11/09/2022]
Abstract
BACKGROUND Elderly patients comprise a significant portion of patients with limited stage small cell lung carcinoma. However, the prognostic importance of age has been controversial, and concern for toxicity often hinders enthusiasm for offering full dose therapy. METHODS In this retrospective analysis of Intergroup Trial 0096, the authors compared the outcome of patients 70 years or older to those younger than 70 years. Patients received cisplatin 60 mg/m(2), Day 1 and etoposide 120 mg/m(2), Days 1-3 for 4 cycles and either once or twice daily concurrent thoracic radiotherapy to 45 grays. RESULTS Of 381 patients, 50 (13%) were age 70 years or older. The elderly group did not differ significantly from those younger than 70 years with respect to gender distribution, performance status, or weight loss. Severe hematologic toxicity (Grade 4-5: 61% vs. 84%; P < 0.01) and fatal toxicity (1% vs. 10%; P = 0.01) occurred more often among older patients. There were no differences in the frequency of nonhematologic toxicities. Response rate (88% vs. 80%; P = 0.11), event free survival rate (5 year, 19% vs. 16%; P = 0.18), time to local failure, and duration of response did not differ between groups. Overall survival rates (5 year, 22% vs. 16%; P = 0.05) favored those younger than 70 years. Much of the difference in overall survival rates between age groups occurred within the first 6 months on study. CONCLUSIONS Elderly patients had similar response and survival rates compared with those younger than 70 years. However, toxicity, particularly hematologic, was greater among the elderly. Selected older patients, such as those with a good performance status, should be considered for optimum treatment approaches.
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Affiliation(s)
- A R Yuen
- Stanford University Medical Center, Stanford, California, USA
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Abstract
An enhanced sampling method-biased Brownian dynamics-is developed for the calculation of diffusion-limited biomolecular association reaction rates with high energy or entropy barriers. Biased Brownian dynamics introduces a biasing force in addition to the electrostatic force between the reactants, and it associates a probability weight with each trajectory. A simulation loses weight when movement is along the biasing force and gains weight when movement is against the biasing force. The sampling of trajectories is then biased, but the sampling is unbiased when the trajectory outcomes are multiplied by their weights. With a suitable choice of the biasing force, more reacted trajectories are sampled. As a consequence, the variance of the estimate is reduced. In our test case, biased Brownian dynamics gives a sevenfold improvement in central processing unit (CPU) time with the choice of a simple centripetal biasing force.
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Affiliation(s)
- G Zou
- Beckman Institute, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.
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Donovan JW, Ladetto M, Zou G, Neuberg D, Poor C, Bowers D, Gribben JG. Immunoglobulin heavy-chain consensus probes for real-time PCR quantification of residual disease in acute lymphoblastic leukemia. Blood 2000; 95:2651-8. [PMID: 10753847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
Tumor-related immunoglobulin heavy-chain (IgH) rearrangements are markers for polymerase chain reaction (PCR) detection of minimal residual disease (MRD) in B-cell malignancies. Nested PCR with patient IgH allele-specific oligonucleotide primers can detect 1 tumor cell in 10(4) to 10(6) normal cells. In childhood acute lymphoblastic leukemia (ALL), persistence of PCR-detectable disease is associated with increased risk of relapse. The clinical significance of qualitative PCR data can be limited, however, because patients can harbor detectable MRD for prolonged periods without relapse. Recent studies indicate that a quantitative rise in tumor burden identifies patients who are at high risk for relapse. Therefore, an efficient and reliable PCR method for MRD quantification is needed for ALL patients. We have developed a real-time PCR method to quantify MRD with IgH V(H) gene family consensus fluorogenically labeled probes. With this method, a small number of probes can be used to quantify MRD in a large number of different patients. The assay was found to be both accurate and reproducible over a wide range and capable of detecting approximately 1 tumor cell in 5 x 10(4) normal cells. We demonstrate that this methodology can discriminate between patients with persistence of MRD who relapse and those who do not. This technique is generally applicable to B-cell malignancies and is currently being used to quantify MRD in a number of prospective clinical studies at our institution. (Blood. 2000;95:2651-2658)
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Affiliation(s)
- J W Donovan
- Department of Adult Oncology, Harvard Medical School, Dana-Farber Cancer Institute, Boston, MA 02115, USa.
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Qu S, Yang H, Ren D, Kan S, Zou G, Li D, Li M. Magnetite Nanoparticles Prepared by Precipitation from Partially Reduced Ferric Chloride Aqueous Solutions. J Colloid Interface Sci 1999; 215:190-192. [PMID: 10362489 DOI: 10.1006/jcis.1999.6185] [Citation(s) in RCA: 216] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Spherical magnetite particles with mean diameter of about 10 nm or less were prepared by means of a reduction-precipitation method with ferric chloride as starting material, which was partially reduced to ferrous salts by Na2SO3 before alkalinizing with ammonia. It was found that the nature of the product depends strongly on the initial ratio R0 = [Fe3+]0/[SO2-3]0. The most appropriate ratio was 3 as proved by X-ray diffraction analysis on the samples although the initial concentration of ferric chloride can be different. Particle diameter increased from ca. 3 to ca. 11 nm with an increase of the concentration of aqueous ferric chloride from 0.075 to 0.45 mol dm-3. The advantage of this method lies in the formation of a red intermediate during the reduction process, which enables us to prevent the reoxidation of the ferrous ions by adding precipitation agents at the end of the reduction reaction without the protection of nitrogen or argon. Copyright 1999 Academic Press.
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Affiliation(s)
- S Qu
- National Laboratory of Superhard Materials, Jilin University, Changchun, 130023, People's Republic of China
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