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Zhou Q, Liu L, Liu B, Wang Y, Chen J, Chen X, Yang J, Qin J, Che G, Yang Z. [Lobectomy or pneumonectomy combined with extended resection of the heart, great vessels in the treatment of locally advanced lung cancer]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2012; 4:403-6. [PMID: 21106143 DOI: 10.3779/j.issn.1009-3419.2001.06.02] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND To summarize the results of extended resection of the heart, great vessels, or both in the treatment of 349 patients with locally advanced lung cancer. METHODS From February , 1983 to December, 2000, lobectomy or pneumonectomy combined with extended resection of the heart, great vessels or both were carried out in 349 patients with locally advanced lung cancer. The operations included bronchoplastic procedures and pulmonary artery reconstruction in 205 cases, extended resection of left atrium in 75 cases, superior vena cava resection and reconstruction in 65 cases ( 3 patients had carina resection and reconstruction simultaneously) , and aorta resection and reconstruction in 4 cases respectively. RESULTS There were two operative death. The operative mortality was 0. 6% in the series. Fifty-three patients had operative complications. The 1, 3, 5 and 10-year survival rates were 79. 36%, 59. 93%, 33. 14% and 23. 56% respectively. CONCLUSIONS Extended resection of the heart, great vessels or both can remarkably increase the long-term survival and improve the prognosis in patients with locally advanced lung cancer. Lobectomy or pneumonectomy combined with extended resection of the heart, great vessels in the treatment of locally advanced lung cancer.
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Qin J, Xu J, Dong Y, Tang W, Wu B, An Y, Shan H. High-resolution CT findings of pulmonary infections after orthotopic liver transplantation in 453 patients. Br J Radiol 2012; 85:e959-65. [PMID: 22993384 DOI: 10.1259/bjr/26230943] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES The objective of this study was to review the high-resolution CT (HRCT) findings in patients with pulmonary infection after orthotopic liver transplantation (OLT) and to determine distinguishing findings among the various types of infection. METHODS This study included 453 consecutive liver transplant recipients with pulmonary infection, on whom HRCT of the chest was performed within 24 h of the beginning of symptoms and for whom proven diagnosis had taken place within 1 week of the onset of symptoms. Two radiologists analysed the CT images; final decisions regarding the findings were reached by consensus. RESULTS Bacterial and viral pneumonia made up the bulk of infections (63.4% and 29.4%, respectively), followed by fungal infiltrates (24.5%). Large nodules were most common in patients with fungal pneumonia, having been seen in 38 (54%) of the 70 patients with fungal pneumonia, 22 (10%) of 220 with bacterial pneumonia (p=0.0059) and 6 (8%) of 78 with viral pneumonia (p=0.0011). The halo sign was also more frequent in patients with fungal pneumonia, having been seen in 38 (54%) of the 70 patients with fungal pneumonia, 17 (8%) of 220 with bacterial pneumonia (p=0.0026) and 7 (9%) of 78 with viral pneumonia (p=0.0015). There was no statistically significant difference in the prevalence of the other HRCT patterns including air-space consolidation, ground-glass attenuation and small nodules among bacterial, viral and fungal infections (all p>0.05). CONCLUSION The presence of large nodules with the halo sign is most suggestive of fungal infection after OLT. Other HRCT patterns are not helpful in distinguishing among the various types of infection seen in liver transplant recipients.
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Qin J, Liu LY, Fang Y, Zhu JM, Wu Z, Zhu KS, Zhang JS, Shan H. 320-detector CT coronary angiography with prospective and retrospective electrocardiogram gating in a single heartbeat: comparison of image quality and radiation dose. Br J Radiol 2012; 85:945-51. [PMID: 22745204 DOI: 10.1259/bjr/29901700] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To compare the image quality, radiation dose and diagnostic accuracy of 320-detector CT coronary angiography with prospective and retrospective electrocardiogram (ECG) gating in a single heartbeat. METHODS Two independent reviewers separately scored image quality of coronary artery segment for 480 cardiac CT studies in a prospective group and a retrospective group (240 patients with a heart rate <65 beats per minute in each group). The two groups matched well for clinical characteristics and CT parameters. There was good agreement for image quality scores of coronary artery segment between the independent reviewers (κ=0.73). Of the 7023 coronary artery segments, the image quality scores of the prospective group and retrospective group were not significantly different (p>0.05). The mean radiation dose was 10.0 ± 3.5 mSv (range 6.2-21.6 mSv) for prospective ECG gating at 65-85% of R-R interval (the interval between the R-wave of one heartbeat to the R-wave of the next). The mean radiation dose for retrospective ECG-triggered modulated scans was 23.2 ± 3.4 mSv (range 17-27.4 mSv). The mean radiation dose was 57% lower for prospective gating than for retrospective gating (p<0.01). RESULTS Compared with coronary angiography, the results for prospective vs retrospective ECG gating were 92% vs 90% for sensitivity (p=0.23), 89% vs 91% for specificity (p=0.19), 90% vs 93% for positive predictive value (p=0.25) and 92% vs 95% for negative predictive value (p=0.21) for lesions with ≥50% stenosis, respectively. CONCLUSION 320-detector CT coronary angiography performed with prospective ECG gating has similar subjective image quality scores, but a 57% lower radiation dose than retrospective ECG gating in a single heartbeat.
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Sherry N, Qin J, Fuller MS, Xie Y, Mola O, Bauer M, McIntyre NS, Maxwell D, Liu D, Matias E, Armstrong C. Remote Internet access to advanced analytical facilities: a new approach with Web-based services. Anal Chem 2012; 84:7283-91. [PMID: 22894172 DOI: 10.1021/ac301513b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Over the past decade, the increasing availability of the World Wide Web has held out the possibility that the efficiency of scientific measurements could be enhanced in cases where experiments were being conducted at distant facilities. Examples of early successes have included X-ray diffraction (XRD) experimental measurements of protein crystal structures at synchrotrons and access to scanning electron microscopy (SEM) and NMR facilities by users from institutions that do not possess such advanced capabilities. Experimental control, visual contact, and receipt of results has used some form of X forwarding and/or VNC (virtual network computing) software that transfers the screen image of a server at the experimental site to that of the users' home site. A more recent development is a web services platform called Science Studio that provides teams of scientists with secure links to experiments at one or more advanced research facilities. The software provides a widely distributed team with a set of controls and screens to operate, observe, and record essential parts of the experiment. As well, Science Studio provides high speed network access to computing resources to process the large data sets that are often involved in complex experiments. The simple web browser and the rapid transfer of experimental data to a processing site allow efficient use of the facility and assist decision making during the acquisition of the experimental results. The software provides users with a comprehensive overview and record of all parts of the experimental process. A prototype network is described involving X-ray beamlines at two different synchrotrons and an SEM facility. An online parallel processing facility has been developed that analyzes the data in near-real time using stream processing. Science Studio and can be expanded to include many other analytical applications, providing teams of users with rapid access to processed results along with the means for detailed discussion of their significance.
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Lu H, Mao W, Cheng Q, Cai J, Wang X, Zhang Y, Lou C, Qin J, Lei L, Yang H. Epidermal Growth Factor Receptor Mutation in Small Cell Lung Cancer Patients Detected by Mutant-Enriched Liquidchip Technology from Plasma. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)34075-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Wang Y, Zhe H, Gao P, Zhang N, Li G, Qin J. Cancer stem cell marker ALDH1 expression is associated with lymph node metastasis and poor survival in esophageal squamous cell carcinoma: a study from high incidence area of northern China. Dis Esophagus 2012; 25:560-5. [PMID: 22098156 DOI: 10.1111/j.1442-2050.2011.01279.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Tumor recurrence and metastasis is the leading cause of death in esophageal squamous cell carcinoma (ESCC). Cancer stem cell (CSC) may be responsible for tumor growth and maintenance of aggressive behavior. Aldehyde dehydrogenase 1 (ALDH1) has been proposed as one of the possible candidates for a CSC marker. The expression of ALDH1 may be correlated with the clinicopathologic factor and clinical outcome of patients with ESCC. The purpose of this study was to investigate the expression of ALDH1 protein in human ESCC tissues, and evaluated the clinical implication of ALDH1 expression for these patients. All 79 patients who underwent esophagectomy for ESCC between January 2005 and June 2006 were enrolled in this study. The expression of ALDH1 in ESCC and adjacent noncancerous tissues was analyzed by immunohistochemistry. ALDH1 was mainly expressed in ESCC cell nucleus. For the 79 ESCC patients, increased nuclear accumulation of ALDH1 was found in 12 (15.2%) specimens. ALDH1 expression was correlated with poor histological differentiation (P= 0.003), lymph node metastasis (P= 0.011), and late pathologic TNM classification (pTNM) staging (P= 0.003). Patients in ALDH1 positive group had a significantly poor 5-year overall survival than those in the negative group (8.3% vs. 52.2%, P= 0.025). We have demonstrated for the first time that the CSC marker, ALDH1, is expressed in human ESCC. The expression of ALDH1 protein in nucleus of the ESCC is significantly associated with lymph node metastasis and poor survival. Our results highly indicate the involvement of ALDH1 in the aggressive behavior of ESCC.
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Li C, Li S, Michalsen A, Qin J. P01.10. Effects of caloric restriction combined with traditional chinese phytomedicine on the glucolipid metabolism in Wistar Rats with insulin resistance. Altern Ther Health Med 2012. [PMCID: PMC3373630 DOI: 10.1186/1472-6882-12-s1-p10] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Qin J, Fang Y, Dong Y, Zhu K, Wu B, An Y, Shan H. Radiological and clinical findings of 25 patients with invasive pulmonary aspergillosis: retrospective analysis of 2150 liver transplantation cases. Br J Radiol 2012; 85:e429-35. [PMID: 22496071 DOI: 10.1259/bjr/39784231] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
OBJECTIVE The purpose of this study was to evaluate the radiological and clinical findings of invasive pulmonary aspergillosis (IPA) after liver transplantation. METHODS This study included 25 consecutive liver transplant recipients with histologically confirmed IPA after liver transplantation. Radiological examinations performed for diagnosis were available in all patients. Clinical findings and changes in clinical response and radiological findings after treatment were also evaluated. RESULTS 3 main radiological findings were identified: nodules, 64% (16/25); masses, 36% (9/25); and consolidations in a patchy pattern, 20% (5/25). A tree-in-bud pattern was found in 12% (3/25) of patients. In 8 (32%) of 25 patients, we found a combination of 2 or more of these signs: 5 (20%) patients presented with concurrent nodules accompanied by patchy consolidations and/or tree-in-bud, and 3 (12%) patients showed masses accompanied by large consolidations. A halo sign was observed in 20 (80%) of 25 patients. Hypodense sign and cavitary lesions were encountered in 17 (68%) of 25 patients. Follow-up radiological findings after treatment showed improvement in 18 patients, no change in 4 patients and progression in 3 patients. There were three aspergillosis-associated deaths during the follow-up period. The onset time of IPA was a median of 31 days after transplantation. The most common symptom at diagnosis was fever (n=15). None of the 25 patients had leukopaenia at the time of the diagnosis of IPA. CONCLUSIONS The most common radiological findings of IPA after liver transplantation are multiple nodules with or without halo sign, masses and consolidations, which usually appear about 1 month after transplantation.
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Luo AH, Yang DQ, Xin BC, Paster BJ, Qin J. Microbial profiles in saliva from children with and without caries in mixed dentition. Oral Dis 2012; 18:595-601. [PMID: 22458262 DOI: 10.1111/j.1601-0825.2012.01915.x] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The purpose of this study was to determine the bacterial profiles in saliva of the isolated children for studying caries etiology. MATERIALS AND METHODS Samples were collected from isolated children from 6 to 8years old including 20 caries-free (dmfs=0) (healthy) and 30 caries-active individuals (dmfs>8) (patients). 16S rRNA genes were amplified by PCR from bacterial DNA of saliva sample and labeled via incorporation of Cy3-dCTP in second nested PCR. After hybridization of labeled amplicons on HOMIM, the microarray slides were scanned and original data acquired from professional software. RESULTS Collectively, 94 bacterial species or clusters representing six bacterial phyla and 30 genera were detected. A higher bacterial diversity was observed in patients than in healthy samples. Statistical analyses revealed eight species or clusters were detected more frequently in diseased patients than in healthy samples, while six different species were detected more frequently in healthy as compared to diseased patients. CONCLUSION The diversity of microbe within saliva derived from isolated population increased in caries-active status, and there are some bacteria in salivary flora can be as candidate biomarkers for caries prognosis in mixed dentition. The imbalances in the resident microflora may be the ultimate mechanism of dental caries.
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Rashid H, Abdel-Moniem A, Email S, El-Batran M, Rashid H, Mansour H, Mahmoud S, Ashour Z, Mustafa S, Khodeer SA, Abdu-Allah AM, Al-Assal M, Rashid HK, Ghosh Dastidar A, Garg P, West J, Muthusamy R, Gunn J, Zhu F, Lee A, Chee YE, Li ZJ, Kang CS, Chen ZY, Zhang YX, Zhao ZX, Song Q, Rong Y, Bao W, Shan ZL, Rong S, Wang D, Yao P, Liu LG, Zhu LX, Ho SC, Ruan GQ, Xie Q, Sit JWH, Yang YL, Chan MCH, Hu M, Chan TYK, Tomlinson B, Wu HS, Wang LS, Qin J, Wong TT, Heng PA, Yu CM, Luis SA, Luis CR, Habibian M, Courtney A, Hamilton-Craig C, Strugnell W, Poon K, Slaughter R, Raffel OC, Raffel OC, Luis SA, Hansen M, Slaughter R, Hamilton-Craig C, Liang Y, Bai Y, Chen T, Feng GX, Yang YM, Wang XY, Yang YJ, Zhu J, Al-Mohammadi M, Hersi A, Alhabib KF, Alsheikh-Ali AA, Sulaiman K, Alfaleh H, Alsaif S, Almahmeed W, Asaad N, Amin H, Al-Motarreb A, Al-Suwaid J, Blanco JRF, Velasco AB, Mancera J, Francisco A, CA, Zhuravlyova L, Lopina N, Song HH, Xu SH, Huang MZ, Xu CS, Xie LD, Ko B, Cameron J, Seneviratne S, Leung M, Antonis P, Koutsoubos J, Malaiapan Y, Meredith I, Capros N, Istrati V, Matcovschi S, Dumitras T, Istrati S, Nicolenco I, Hotineanu R, Manea D, Gherman O, Hsiung MC, Ko CH, Wei J, Tung TH, Graham CA, Chan JWM, Rotherary KR, Rainer TH, Yan B, Liu M, Huang XR, Li RJ, Lam YY, Yu CM. P033 * Evaluation of myocardial function in patients with chronic stable angina and apparent normal ventricular function (tissue doppler study before and after PCI). Eur Heart J Suppl 2012. [DOI: 10.1093/eurheartj/sur025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Youssef AA, Kishk YT, Abdelhafez HA, Bafadhl TA, Tsui PT, Lau CL, Lo YK, Chan NY, Choy CC, Yuen HC, Chu PS, Chow HF, Fong HF, Mok NS, Lau ST, Tsui PT, Lau CL, Lo YK, Chan NY, Choy CC, Yuen HC, Chu PS, Chow HF, Fong HF, Mok NS, Lau ST, Chow HF, Tsui PT, Lau CL, Lo YK, Chan NY, Choy CC, Yuen HC, Chu PS, Fong HF, Mok NS, Lau ST, Chen YL, Yip HK, Chen SY, Poon KKC, Luis SA, Savage M, Raffel OC, Walters DL, Poon KKC, Luis SA, Raffel OC, Aroney C, Walters DL, Qin J, Li S, Wu HS, Wang LS, Wang XX, Wong TT, Yu CM, Heng PA, Liew M, Ong SH, Gan HW, Chai SC, Goh PP, Chair SY, Wong EML, Sit JWH, Leung DYP, So WKW, Chan CWH, Pun SPY, Chan AWK, Sattwika PD, Taufiq N, Kurniawan IWSE, Sattwika KA. P097 * Prognostic significance of high sensitivity C-reactive protein before and after percutaneous coronary intervention in patients with angina pectoris. Eur Heart J Suppl 2012. [DOI: 10.1093/eurheartj/sur030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Allam R, Galal W, El-Damnhoury H, Mortada A, Guo R, Fang F, Xie JM, Zhang Q, Chan YS, Fung WH, Razali O, Azlan H, Lam KH, Chan CK, Yu CM, Wong FMF, Sit JWH, Wong EML, Lee V, Hemingway H, Harb R, Crake T, Lambiase P, Zhao QY, Yu SB, Huang H, Qin M, Cui HY, Huang T, Huang CX, Leung YW, Yue CS, Leung KF, Fung CYR, Mak YMW, Chow KS, Tang SK, Sperzel J, Tscheliessnigg K, Bucx JJJ, Silvestre J, Oza AL, Yu Mironov N, Golitsyn SP, Sokolov SF, Yuricheva YA, Maikov EB, Shlevkov NB, Mareev YV, Rosenstraukh LV, Chazov EI, Li BN, Qin J, Xiang K, Pang WM, Wang LS, Wu HS, Qin J, Wong TT, Yu CM, Heng PA, Clatot J, Ziyadeh-Isleem A, Coulombe A, Maugenre S, Dilanian G, Hatem S, Denjoy I, Neyroud N, Guicheney P, Plameras GB, Valentin MV, Ramirez M, Suga C, Hirahara T, Sugawara Y, Nakajima J, Wakaba H, Ako J, Momomura S, Ye Volkov D, Karpenko YI, Lopin DA, Chair SY, Lee JCK, Choi KC, Sit JWH, Wong EM, Chan CWH, So WKW, Cheng AHY, Hamid AK, Lainchbury JG, Troughton RW, Yandle TG, Frampton CM, Richards AM. P001 * Reversal of endothelial dysfunction after AF cardioversion. Eur Heart J Suppl 2012. [DOI: 10.1093/eurheartj/sur022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Qin J, Cheng X, Chen X, Zhang X, Lu W, Xie X. Value of three-dimensional power Doppler to predict clinical and histological response to neoadjuvant chemotherapy in locally advanced cervical carcinoma. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2012; 39:226-234. [PMID: 21845741 DOI: 10.1002/uog.10071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE Platinum-based neoadjuvant chemotherapy followed by radical hysterectomy is an alternative therapeutic strategy for locally advanced cervical carcinoma but variables used to predict chemotherapy response are not well defined. We investigated the potential of three-dimensional (3D) power Doppler in predicting response to neoadjuvant chemotherapy. METHODS We enrolled 61 eligible patients with locally advanced cervical carcinoma who underwent neoadjuvant chemotherapy followed by surgery or radiation. Before the initial chemotherapy, we measured 3D power Doppler vascular indices, including vascularization index (VI), flow index (FI) and vascularization flow index (VFI), of the whole cervical carcinoma. We also measured two-dimensional (2D) hemodynamic parameters, such as resistance index and pulsatility index, at three random spots inside the tumor. The associations of all parameters with clinical and histological responses to chemotherapy were evaluated through univariable and multiple logistic regression analysis. RESULTS The clinical and histological response rates to chemotherapy were 70.5% and 70.7%, respectively. Univariable logistic regression analysis showed that VI, FI and VFI were significantly higher in clinical responders than in non-responders (P < 0.05), and that FI was significantly higher in histological responders (P = 0.012). Multiple logistic regression analysis showed that FI was the only significant factor associated with both clinical and histological responses. The best FI cut-off values were 35.3 and 37.3 for clinical response and histological response, respectively (with sensitivity 86.0% and 73.2%, and specificity 72.2% and 64.7%). Interestingly, none of the 2D hemodynamic parameters was significantly correlated with either response. CONCLUSION FI is a potential marker for predicting both clinical and histological responses to chemotherapy in patients with locally advanced cervical carcinoma.
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Lu GH, Qi PD, Qin J, Wang C. Biomarker responses in fish exposed to sediments from northern Taihu Lake. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2011; 87:499-505. [PMID: 21904856 DOI: 10.1007/s00128-011-0398-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Accepted: 08/25/2011] [Indexed: 05/31/2023]
Abstract
Our study investigated multiple biomarker responses of goldfish exposed to sediments collected from northern Taihu Lake. The activities of acetylcholinesterase, 7-ethoxyresorufin-O-deethylase, glutathione-S-transferase and superoxide dismutase did not differ significantly from controls following exposure to sediment from the center of the lake. However, sediment collected from the northern bays did significantly alter enzymatic activities. An integrated biomarker response (IBR) was calculated and used to evaluate the impact of pollutants from different stations. The results indicated that Mashan in Meiliang Bay and Xiaogongshan in Gong Bay were the most stressful places for fish. Sediment polychlorinated biphenyl and polybrominated diphenyl ether concentrations were associated with IBR variation.
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Lee CY, Qin J, Munyard KA, Siva Subramaniam N, Wetherall JD, Stear MJ, Groth DM. Conserved haplotype blocks within the sheep MHC and low SNP heterozygosity in the Class IIa subregion. Anim Genet 2011; 43:429-37. [PMID: 22497756 DOI: 10.1111/j.1365-2052.2011.02268.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This report describes single-nucleotide polymorphisms (SNPs) in the sheep major histocompatibility complex (MHC) class II and class III regions and provides insights into the internal structure of this important genomic complex. MHC haplotypes were deduced from sheep family trios based on genotypes from 20 novel SNPs representative of the class II region and 10 previously described SNPs spanning the class III region. All 30 SNPs exhibited Hardy-Weinberg proportions in the sheep population studied. Recombination within an extended sire haplotype was observed within the class II region for 4 of 20 sheep chromosomes, thereby supporting the presence of separated IIa and IIb subregions similar to those present in cattle. SNP heterozygosity varied across the class II and III regions. One segment of the class IIa subregion manifested very low heterozygosity for several SNPs spanning approximately 120 Kbp. This feature corresponds to a subregion within the human MHC class II region previously described as a 'SNP desert' because of its paucity of SNPs. Linkage disequilibrium (LD) was reduced at the junction separating the putative class IIb and IIa subregions and also between the class IIa and the class III subregions. The latter observation is consistent with either an unmapped physical separation at this location or more likely a boundary characterized by more frequent recombination between two conserved subregions, each manifesting high within-block LD. These results identify internal blocks of loci in the sheep MHC, within which recombination is relatively rare.
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Qi L, Rui J, Qin J, Yili C, Guifu W, Jianxin D. Effects of exercise capacity between short-term high intensity interval exercise and moderate intensity continuous exercise training in young males. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Zhang F, Chen L, Qin J, Zhao W, Wu P. A novel gene with a vWD domain and three Kazal-type domains: Molecular cloning and expression in the ovary of the oriental river prawn, Macrobrachium nipponense. RUSS J GENET+ 2011. [DOI: 10.1134/s1022795411090183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Zhang F, Chen L, Qin J, Zhao W, Wu P. A novel gene with a vWD domain and three Kazal-type domains: molecular cloning and expression in the ovary of the oriental river prawn, Macrobrachium nipponense. GENETIKA 2011; 47:1190-1195. [PMID: 22117403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A novel gene encoding avon Willebrand factor D (vWD) domain and three Kazal-type domains was firstly indentified from the ovary of the oriental river prawn Macrobrachium nipponense and this gene was named as MnvWD-Kazal. Bioinformatics analyses showed that this gene encodes a protein of 857 amino acids with a predicted molecular mass of 92.7 kDa. Real-time quantitative PCR (RT-QPCR) analyses revealed that the level of MnvWD-Kazal mRNA expression varied in the developing ovary and substantially differed between other tissues. In the ovary, the level of MnvWD-Kazal expression gradually increased from the perinucleolus (PN) stage to the yolk granule (YG) stage, and then abruptly decreased at the sexual maturation (MA) stage. The maximum expression occurred in the YG stage and the minimum was at the paracmasis (PM) stage. The expression level of MnvWD-Kazal in the intestine was much higher than that in other tissues. The differential expressions of MnvWD-Kazal at different stages of the ovary suggest that this novel gene may play a critical role in the oocyte maturation of M. nipponense.
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Qin J, Irifune T, Shinmei T, Ohfuji H, Lei L. Phase stability of boron relative to β-boron at high pressure and high temperature. Acta Crystallogr A 2011. [DOI: 10.1107/s010876731109177x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Teng JA, Hou RL, Li DL, Yang RP, Qin J. Glargine promotes proliferation of breast adenocarcinoma cell line MCF-7 via AKT activation. Horm Metab Res 2011; 43:519-23. [PMID: 21773964 DOI: 10.1055/s-0031-1280780] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Glargine is widely used as a long-acting insulin analogue in the treatment of diabetes mellitus. However, this insulin analogue has been recently suspected to be associated with an increased risk of cancer. The aim of this study was to investigate the influence of glargine on proliferation of breast adenocarcinoma cell line (MCF-7) and its possible mechanism. Effects of glargine and regular human insulin on the cell proliferation were tested in ER-positive MCF-7 cells by MTT assay. Apoptosis in MCF-7 cells was measured by flow cytometry. The protein levels of p-AKT, Bcl-2, and Bax were also determined by Western blotting and immunohistochemistry, respectively. The result showed that glargine (100, 200 nmol/l) stimulated proliferation of ER-positive MCF-7 cells compared with regular human insulin. At the same time, glargine decreased the percentage of early apoptosis in MCF-7 cells. Otherwise, glargine (100 nmol/l) stimulated the p-AKT in a time-dependent manner in MCF-7 cells. Furthermore, we found that glargine downregulated the level of Bax protein and upregulated that of Bcl-2 (p <0.05). These data show that glargine promote the proliferation of breast adenocarcinoma cells in vitro, probably by preventing apoptosis.
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Leung HCM, Yiu SM, Yang B, Peng Y, Wang Y, Liu Z, Chen J, Qin J, Li R, Chin FYL. A robust and accurate binning algorithm for metagenomic sequences with arbitrary species abundance ratio. Bioinformatics 2011; 27:1489-95. [DOI: 10.1093/bioinformatics/btr186] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Jing H, Qin J, Feng M, Wang T, Zhu J, Wang C, Wang F, Liu K, Li J, Liu C. Nitric oxide in enteric nervous system mediated the inhibitory effect of vasopressin on the contraction of circular muscle strips from colon in male rats. Neurogastroenterol Motil 2011; 23:e125-35. [PMID: 21166960 DOI: 10.1111/j.1365-2982.2010.01646.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Arginine vasopressin (AVP) is widely used in the treatment of critical diseases with hypotension, but the reports about its effect on gastrointestinal motility are controversial. The purpose of this study was to characterize the role of AVP in the regulation of colonic motility and the underlying mechanism. METHODS The contraction of the circular muscle strips (CM) of colon in male rats was monitored by a polygraph. The expressions of cytoplasmic inducible nitric oxide synthase (iNOS), I-κB, and the nuclear P65 in proximal colon were measured by Western blot. The V(1) receptors (V(1) Rs) and iNOS were localized by immunohistochemistry. The content of nitric oxide (NO) in the colon was measured by Griess reagent at the absorbance of 560 nm. KEY RESULTS Arginine vasopressin (10(-10) -10(-6) mol L(-1)) caused a concentration-dependent inhibition on CM contraction. Pretreatment with one of the following chemicals, including V-1880 (10(-7) mol L(-1)), TTX (10(-5) mol L(-1)), L-NAME (10(-4) mol L(-1)), NPLA (10(-7) mol L(-1)), SMT (10(-3) mol L(-1)), and PDTC (10(-3) mol L(-1)), attenuated the inhibitory effect of AVP on CM contraction. Arginine vasopressin increased the expression of iNOS and the content of NO in proximal colon. These effects were attenuated by pretreatment with PDTC (10(-3) mol L(-1)). Following AVP administration, the amount of cytoplasmic I-κB decreased, but that of nuclear P65 increased. Double immunofluorescence labeling revealed that V(1) Rs and iNOS were co-localized on the cells of myenteric plexus in proximal colon. CONCLUSIONS & INFERENCES Arginine vasopressin inhibited the contraction of CM in proximal colon. This effect was mediated by NO produced from NF-κB-iNOS pathway and neuronal NOS activation in myenteric plexus.
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Wu H, Wang L, Qin J, Wong T, Heng P, Yu C. P052 Reconstruction and Visualization of Left Ventricular Torsion using a Prolate Spheroidal B-solid Model. Int J Cardiol 2011. [DOI: 10.1016/s0167-5273(11)70078-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Meng Q, Chui YP, Qin J, Kwok WH, Karmakar M, Heng PA. CvhSlicer: an interactive cross-sectional anatomy navigation system based on high-resolution Chinese visible human data. Stud Health Technol Inform 2011; 163:354-358. [PMID: 21335818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We introduce the design and implementation of an interactive system for the navigation of cross-sectional anatomy based on Chinese Visible Human (CVH) data, named CvhSlicer. This system is featured in real-time computation and rendering of high-resolution anatomical images on standard personal computers (PCs) equipped with commodity Graphics Processing Units (GPUs). In order to load the whole-body dataset into the memory of a common PC, several processing steps are first applied to compress the huge CVH data. Thereafter, an adaptive CPU-GPU balancing scheme is performed to dynamically distribute rendering tasks among CPU and GPU based on parameters of computing resources. Experimental results demonstrate that our system can achieve real-time performance and has great potential to be used in anatomy education.
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Tang J, Zhao J, Wang J, Qin J, Xu B. Abstract P2-09-21: Effect of MDR1 Gene Polymorphisms and Haplotypes on Taxanes-Based Chemotherapy Responses in Chinese Han Patients with Breast Cancer. Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p2-09-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: In recent years, taxanes play an important role in chemotherapy of breast cancer patients, and its response rate is about 50%. Taxanes is primarily metabolized by CYP450 in liver microsome, and it also is a substrate for P-glycoprotein (the coded product of MDR1 gene). The interindividual heterogeneity in drug-metabolizing enzymes and transporters has contributed to the variability on anti-cancer efficacy of taxanes in breast cancer patients. Several studies showed that the pharmacokinetics of taxanes was influenced by the MDR1 polymorphisms. The aim of this study is to investigate the relationship between MDR1 gene polymorphisms and taxanes-based chemotherapy responses, and provides useful information for clinical personalized medicine and prognostic judgment.
Material and Methods: Genotyping of MDR1 variants was determined in the blood samples from 142 Chinese Han patients with breast cancer, by PCR-RFLP. The association of the gene polymorphisms of MDR1 C1236T at exon 12, G2677T/A at exon 21 and C3435T at exon 26 with chemotherapy responses was analyzed on the 63 patients, who received taxanes-based neoadjuvant chemotherapy [56 cases with TA (taxanes and anthracycline), 7 cases with TAC (C: cyclophosphamide)] and had the intact treatment follow-up information.
Results: In the 142 breast cancer patients, the frequencies of C1236T, G2677T, G2677A and C3435T variant alleles was 70.7%,52.1%,2.5% and 46.5%, respectively, and the frequency of 3435T allele was significantly higher in comparison with that in healthy subjects (34.7%). In the 63 patients with neoadjuvant chemotherapy, the overall clinical response rate (CR+PR) to chemotherapy was 66.7%. 3435TT genotype was showed to be related to taxanes-based chemotherapy, and its efficient rate was 23.1%, significantly lower than that of patients carrying C allele (73.5%; x2 = 9.125, P=0.003). The 3 SNPs were in linkage disequilibrium, and the 4 haplotypes TTT, TGC, CGC and TTC were 90.6 % of all. The patients who carrying 2677G-3435C haplotype showed better response to chemotherapy compared with those with the other haplotypes combined (72.1% vs 40.0%;x2=9.125, P=0.003). The response rate of the patients with 2677T-3435T haplotype or 1236T-3435T haplotype (54.3% or 54.9%) were lower than that of the patients harboring the other haplotypes (82.4% or 91.7%;x2=4.128 and x2=4.118, P =0.042 for both) respectively, and the efficient rate of the patients with 1236T-2677T-3435T (54.3%) were also lower than that of the patients with other haplotypes combined (82.4%;x2=4.128, P=0.042).
Conclusion: C1236T, G2677T/A and C3435T of MDR1 gene were polymorphic with different frequency in breast cancer patients. The analyses of MDR1 C3435T genotype and its haplotypes with C1236T or G2677T/A are valuable for predicting the taxanes-based chemotherapy responses in breast cancer patients, which deserve the further study.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P2-09-21.
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