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Xu JH, Wang S, Xu ZN, Yu YY, Si CW, Zeng Z, Li J, Mao Q, Zhang DZ, Tang H, Sheng JF, Chen XY, Ning Q, Shi GF, Xie Q, Zhang XQ, Dai J. Entecavir maleate versus entecavir in Chinese chronic hepatitis B predominantly genotype B or C: Results at week 144. J Viral Hepat 2017; 24:877-884. [DOI: https:/doi.org/10.1111/jvh.12710] [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: 09/02/2023]
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102
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Xu JH, Wang S, Xu ZN, Yu YY, Si CW, Zeng Z, Li J, Mao Q, Zhang DZ, Tang H, Sheng JF, Chen XY, Ning Q, Shi GF, Xie Q, Zhang XQ, Dai J. Entecavir maleate versus entecavir in Chinese chronic hepatitis B predominantly genotype B or C: Results at week 144. J Viral Hepat 2017; 24:877-884. [PMID: 28345157 DOI: 10.1111/jvh.12710] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Accepted: 02/22/2017] [Indexed: 02/05/2023]
Abstract
Reports on the efficacy and safety of long-term entecavir treatment in chronic hepatitis B (CHB) predominantly genotype B or C are insufficient. This study presents the efficacy and safety of entecavir maleate in Chinese CHB patients. Patients were randomly assigned to receive 48-week treatment with either 0.5 mg/day entecavir (group A) or 0.5 mg/day entecavir maleate (group B), and then all patients received treatment with 0.5 mg/day entecavir maleate from week 49. Two hundred and seventy-five patients with CHB (HBeAg-positive: 218) were analysed, predominantly (98.5%) with genotype B or C. Baseline characteristics were balanced. For the HBeAg-positive CHB patients, the mean HBV DNA level decreased similarly (A: by 6.36 log10 IU/mL vs B: by 6.31 log10 IU/mL) between groups at week 144. The percentages of patients who achieved undetectable HBV DNA were similar (A: 70.59% vs B: 66.67%) between groups. Similar HBeAg loss rates (A: 43.53% vs B: 40.23%; P>.05) and HBeAg seroconversion rates (A: 21.52% vs B: 21.18%) were achieved. For the HBeAg-negative CHB patients, similar reductions in HBV DNA levels from baseline (A: by 6.13 log10 IU/mL vs B: by 5.65 log10 IU/mL) and percentages of patients who achieved undetectable HBV DNA (A: 100% vs B: 100%) were achieved. The overall incidence of adverse events was comparable between groups. In conclusions, 48-week administration of entecavir maleate and entecavir showed similar efficacy and safety in Chinese patients with CHB. Long-term entecavir maleate treatment was effective and safe in CHB patients.
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Jeelani R, Dai J, Vilchez G, Awonuga A, Abu-Soud H. Optimal weight gain in women with the diagnosis of infertility: is the optimal weight range truly optimal for such patients? Fertil Steril 2017. [DOI: 10.1016/j.fertnstert.2017.07.312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhu Y, Jia H, Hu S, Li L, Dai J, Wang C, Zhao L, Hu Y, Wang Y, Zhe C, Hou J, Zhang S, Yu B. P472An OCT study on plaque rupture, plaque erosion and calcified nodule in non-culprit lesions of patients with STEMI prevalence, distribution and morphologic characteristics. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p472] [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: 11/13/2022] Open
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Dai J, Cai HR, Li Y, Meng FQ, Wu JQ. [Follicular bronchiolitis: report of 3 cases and literature review]. ZHONGHUA JIE HE HE HU XI ZA ZHI = ZHONGHUA JIEHE HE HUXI ZAZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 2017; 40:457-462. [PMID: 28592030 DOI: 10.3760/cma.j.issn.1001-0939.2017.06.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To improve understanding of the characteristics of follicular bronchiolitis(FB). Methods: The clinical data of 3 patients with FB confirmed by thoracoscopic lung biopsy were retrospectively analyzed. A literature search was performed with "follicular bronchiolitis" as the key word in China Knowledge Resource Integrated Database, Wanfang and PubMed, Ovid Database. The time interval was from January 1947 to December 2015. Related articles of FB were retrieved and the clinical, radiographic characteristics and prognosis were analyzed. Results: Among the 3 patients, 1 was male and 2 were female, aging 32-55 years. Two patients were asymptomatic, and 1 patient presented with fever, cough and dyspnea. Two patients showed normal pulmonary ventilatory function with decreased diffusive function, and 1 patient showed normal pulmonary function. The predominant HRCT findings were bilateral multiple small nodules and cystic opacities, patchy ground-glass opacities, reticular opacities and traction bronchiectasis. The pathological examination by thoracoscopic biopsy revealed bronchiolar and peribronchiolar lymphoid follicles. All patients were treated with corticosteroids, with 2 patients receiving immunosuppressants. Follow-up HRCT after 1-2 months showed no improvement, and further follow-up HRCT after 2-4 years revealed no change in 2 patients while the other patient had increased pulmonary nodules and cystic opacities. Seventeen articles concerning FB with complete records were included in the literature review. A total of 64 patients were reported in these articles. The typical images were bilateral multiple small nodules and ground-glass opacities, reticular opacities, and cystic opacities. The majority of patients improved after treatment of corticosteroids and (or) immunosuppressants. But our 3 cases showed no improvement. Conclusions: FB is a rare small airway disease which has non-specific clinical manifestations and pulmonary function. The most common imaging findings are bilateral multiple small nodules, with cystic opacities, ground-glass opacities, and reticular opacities. Surgical thoracoscopic biopsy can get ideal specimen which is useful for diagnosis. The curative effects of corticosteroids or immunosuppressants on FB need to be further clinically investigated.
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Chandraratnam E, Santos L, Chou S, Dai J, Syeda L, Eslick G, Chin R. Remote frozen section examination of parathyroidectomy specimens by telepathology using Mikroscan D2 and Aperio LV1: a validation study. Intern Med J 2017. [DOI: 10.1111/imj.3_13457] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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107
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Geller S, Dai J, Myskowski P, Kim Y, Moskowitz A, Pulitzer M, Hoppe R, Horwitz S, Kheterpal M. 335 Utility of imaging in cutaneous marginal zone lymphoma. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.352] [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]
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108
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Cai XH, Wang HB, Li J, Sun Q, Dai J, Shan XZ. [Efficacy of semicircular canal occlusion in the treatment of stage 3 or 4 Ménière's disease]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2017; 31:272-276. [PMID: 29871241 DOI: 10.13201/j.issn.1001-1781.2017.04.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the efficacy of semicircular canal occlusion in the treatment of intractable Ménière's disease in stage 3 or 4.Method:Retrospective analysis of clincal date of twenty-nine patients who were referred to our institute and diagonsed with Ménière's disease. According to the preoperative staging of hearing, there were 12 cases in stage 3 and 17 cases in stage 4, and all patients underwent semicircular canal occlusion. The preoperative and postoperative frequency of vertigo, hearing, caloric test, functional level and tinnitus level were compared. Postoperative following-up period was 6-23 months, with an average of 13 months.Result:Postoperatively, vertigo was controlled effectively in all 29 cases, of which 26 cases(89.7%) were completely controlled and 3 cases(10.3%) were basic controlled. The hearing stabilized in 25 cases(86.2%), worse in 2 cases(6.9%) and improved in 2 cases(6.9%). The semicircular canal function of all patients were in low status by caloric test. The rate of tinnitus relief and functional improvement was 41.4%(12/29) and 96.6%(28/29).Conclusion:Semicircular canal occlusion is an effective measure for treatment of Ménière's disease in stage 3 or stage 4, especially in controlling vertigo and improving functional level, but the long-term follow-up is necessary.
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Wang YY, Xu CX, Jiang MM, Li JT, Dai J, Lu JF, Li PL. Lasing mode regulation and single-mode realization in ZnO whispering gallery microcavities by the Vernier effect. NANOSCALE 2016; 8:16631-16639. [PMID: 27430398 DOI: 10.1039/c6nr04943e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The wide direct bandgap and strong exciton binding energy of ZnO have inspired examinations of ultraviolet lasing over the previous decades. However, regulation of the lasing mode, especially the realization of single mode lasing, is still a challenge. In this study, a ZnO comb-like structure with an array of microrods was selected to design coupled whispering-gallery-mode cavities, wherein the naturally varied air-gap between the adjacent microrods created a flexible condition for optical field coupling without any complicated micromanipulation. Spectral behaviour of lasing and coupling interaction between coupled ZnO microrods were systematically investigated. By regulating the nano-scale inter-space of dual coupled microrods, stable single-mode lasing with a higher Q factor and lower threshold was obtained successfully based on the Vernier effect. The formation conditions and the mechanism of single-mode lasing derived from the coupled ZnO microrods were discussed in detail. It also demonstrated an approach to construct high quality single-mode lasing by tuning the diameters of the coupled ZnO microrods.
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Tan J, Dai J, DiFrancesco AG, Hailstone RK. Electronic properties of chemically produced silver clusters: grain morphology studies. THE IMAGING SCIENCE JOURNAL 2016. [DOI: 10.1080/13682199.2001.11784381] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Li N, Tian Y, Jin J, Li Y, Tang Y, Liu W, Wang W, Wang S, Liu Y, Liu X, Yu Z, Dai J. A Customized Tissue Compensator With 3-Dimensional Print Technique for Chest Wall Electron Irradiation. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2221] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Dai J, Wei RJ, Li R, Feng JB, Yu YL, Liu PS. A study of CCND1 with epithelial ovarian cancer cell proliferation and apoptosis. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2016; 20:4230-4235. [PMID: 27831653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE Ovarian cancer is a gynecological malignancy with high mortality rates all over the world. Markers for diagnosis, prognosis and therapy are urgently required to improve the mortality rates. As a key proto-oncogene, CCND1 is known to be amplified in many different carcinomas, including breast cancer, esophageal cancer, bladder cancer, endometrial cancer and ovarian cancer, etc. CCND1 plays an important role in cancer development and progression. However, its function and mechanism have not been completely elucidated in ovarian cancer. MATERIALS AND METHODS In the present study, we use cisplatin in vitro to inhibit the cell proliferation and promote cell apoptosis in epithelial ovarian cancer cell line SKOV-3. CCND1 expression, cell proliferation and cell cycle analysis were carried out by real-time PCR, CCK-8 and flow cytometry respectively. RESULTS Our results demonstrated that cisplatin could inhibit the expression of CCND1 in human epithelial ovarian cancer cell line, which is related to the decreased cell proliferation and increased cell apoptosis. CONCLUSIONS This study demonstrated that CCND1 is a potential therapeutic target for epithelial ovarian cancer treatment.
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Niu Y, Dai J, Wu C, Chen Y, Zhang S, Zhang D. The application of apoptotic inhibitor in apoptotic pathways of MII stage porcine oocytes after vitrification. Reprod Domest Anim 2016; 51:953-959. [DOI: 10.1111/rda.12772] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 07/31/2016] [Indexed: 11/27/2022]
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Dai J, Huai D, Cao Y, Wang SF, Song HM, Wang HX, Jin TA. [The effect and treatment of reflux throat on laryngeal function and wound healing after CO₂ laser laryngeal microsurgery]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2016; 30:1240-1242. [PMID: 29798339 DOI: 10.13201/j.issn.1001-1781.2016.15.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Subscribe] [Scholar Register] [Received: 01/22/2016] [Indexed: 11/12/2022]
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115
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Lai Y, Mandlekar S, Shen H, Holenarsipur VK, Langish R, Rajanna P, Murugesan S, Gaud N, Selvam S, Date O, Cheng Y, Shipkova P, Dai J, Humphreys WG, Marathe P. Coproporphyrins in Plasma and Urine Can Be Appropriate Clinical Biomarkers to Recapitulate Drug-Drug Interactions Mediated by Organic Anion Transporting Polypeptide Inhibition. ACTA ACUST UNITED AC 2016; 358:397-404. [DOI: 10.1124/jpet.116.234914] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2016] [Accepted: 06/16/2016] [Indexed: 12/12/2022]
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Huai D, Yin M, Cao Y, Xu M, Dai J, Wang HX, Wang SF, Song HM, Jin TA, Cheng L. [Revised endoscopic sinus surgery combined middle turbinectomy in the treatment of refractory rhinosinusitis]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2016; 30:899-901. [PMID: 29797938 DOI: 10.13201/j.issn.1001-1781.2016.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the comprehensive curativeeffect of refractory rhinosinusitis by endoscopic sinus surgery and middle turbinate resection.Method:A retrospective analysis with 178 cases of refractory rhinosinusitis.According to the operation methods, these patients were divided into two groups, observation group and control group, with 89 patients each. The observationgroup received revision endoscopic sinus surgery combined with middle turbinectomy and the control with traditional surgery. Followup to observe the curative effect and recurrence rate between the two groups. Result:Follow-up after 6 months, total effective rate of observation group was 88.76% and the effective rate of control group was 68.54%.The total effective rate of observation group is higher than the control group, and non efficiency rate is lower than that of the control group; besides that the incidence of complications and the recurrence rate of the observation group was lower than the control group. Conclusion:It can effectively prevent the recurrence of sinusitis by the revised operation of nasal endoscopic frontal sinus combined with middle turbinate partial or complete removal and fully treatment measures of peri operation period, that is to say it can improve the therapeutic effect of refractory sinusitis witch worthing the clinical popularization and application.
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Masi K, Ditman M, Marsh R, Dai J, Huberts M, Khadija M, Tatro D, Archer P, Matuszak M. SU-G-TeP4-14: Quality Control of Treatment Planning Using Knowledge-Based Planning Across a System of Radiation Oncology Practices. Med Phys 2016. [DOI: 10.1118/1.4957139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Sun J, Zhu M, Shen W, Wang C, Dai J, Xu L, Jin G, Hu Z, Ma H, Shen H. A potentially functional polymorphism in ABCG2 predicts clinical outcome of non-small cell lung cancer in a Chinese population. THE PHARMACOGENOMICS JOURNAL 2016; 17:280-285. [PMID: 26951883 DOI: 10.1038/tpj.2016.2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 10/06/2015] [Accepted: 11/26/2015] [Indexed: 12/29/2022]
Abstract
ABCG2, CD133 and CD117 are pivotal markers of cancer stem cell, which are involved in carcinogenesis and cancer progression. The expression of these genes has been reported to be associated with the development and progression of many cancers, including non-small cell lung cancer (NSCLC). We selected and genotyped 9 potentially functional single-nucleotide polymorphisms in the 3 genes in a clinical cohort of 1001 NSCLC patients in a Chinese population. We found that variant genotypes of ABCG2 rs3114020 were associated with a significantly increased risk of death for NSCLC (additive model: adjusted hazard ratio=1.25, 95% confidence intervals=1.10-1.42, P<0.001). Further stepwise regression analysis suggested that rs3114020 was an independent risk factor for the prognosis of NSCLC. Besides, histology interacted with the genetic effect of rs3114020 in relation to NSCLC survival in the interaction analysis. Our findings show that ABCG2 rs3114020 might be one of the candidate biomarkers for NSCLC survival in this Chinese population, especially among patients with adenocarcinoma.
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Shen H, Dai J, Liu T, Cheng Y, Chen W, Freeden C, Zhang Y, Humphreys WG, Marathe P, Lai Y. Coproporphyrins I and III as Functional Markers of OATP1B Activity: In Vitro and In Vivo Evaluation in Preclinical Species. ACTA ACUST UNITED AC 2016; 357:382-93. [DOI: 10.1124/jpet.116.232066] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 02/12/2016] [Indexed: 01/01/2023]
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120
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Duan HJ, Hu RY, Wu B, Chen DX, Huang KY, Dai J, Chen Q, Wei ZC, Cao S, Sun YH, Li Y. Genetic characterization of red-colored heartwood genotypes of Chinese fir using simple sequence repeat (SSR) markers. GENETICS AND MOLECULAR RESEARCH 2015; 14:18552-61. [PMID: 26782503 DOI: 10.4238/2015.december.28.2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The present study investigated the genetic characterization of red-colored heartwood Chinese fir [Cunninghamia lanceolata (Lamb.) Hook.] in Guangxi using 21 simple sequence repeat (SSR) markers and analyzes of the genetic variation (N = 149) in samples obtained from five sites in Guangxi Province, China. The number of different alleles and the Shannon's information index per locus ranged from 3 to 12 and from 0.398 to 2.258 with average values of 6 and 1.211, respectively, indicating moderate levels of genetic diversity within this germplasm collection. The observed and expected heterozygosity ranged from 0.199 to 0.827 and from 0.198 to 0.878 with an average of 0.562 and 0.584, respectively. Although, the mean fixation index was 0.044, indicative of a low level of genetic differentiation among germplasms, analysis of molecular variance revealed considerable differentiation (99%) within the samples. The neighbor-joining dendrogram revealed that the majority of red-colored Chinese fir genotypes were apparently not associated with their geographic origins. Further analysis by STRUCTURE showed that this Guangxi germplasm collection could be divided into three genetic groups comprising 76, 37, and 36 members, respectively; these were classified into mixed groups with no obvious population structure. These results were consistent with those of the cluster analysis. On the whole, our data provide a starting point for the management and conservation of the current Guangxi germplasm collection as well as for their efficient use in Chinese fir-breeding programs.
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Vilchez GA, Dai J, Hoyos LR, Gill N, Bahado-Singh R, Sokol RJ. Labor and neonatal outcomes after term induction of labor in gestational diabetes. J Perinatol 2015; 35:924-9. [PMID: 26313053 DOI: 10.1038/jp.2015.103] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2015] [Revised: 07/11/2015] [Accepted: 07/22/2015] [Indexed: 01/02/2023]
Abstract
OBJECTIVE To identify the optimal gestational age (GA) for induction of labor (IOL) at term among patients with gestational diabetes (GDMA) according to perinatal outcomes. STUDY DESIGN The US Natality Database from 2007 to 2010 was reviewed. Inclusion criteria were singleton delivery, IOL at 37 to 42 weeks and GDMA. Exclusion criteria included congenital anomalies, pre-gestational diabetes, hypertensive disorders, previous cesarean, breech presentation and rupture of membranes. Controls were non-GDMA cases delivered in geographic and temporal proximity. Delivery mode, macrosomia and perinatal complications were analyzed. Logistic regression adjusted for confounders was used to calculate odds ratios by GA using 39 weeks non-GDMA as reference. RESULTS In all, 96,964 cases and 176,079 controls were included. Increased risk for all adverse outcomes among GDMA cases was found. The nadir for intrapartum and neonatal complications was 38 and 40 weeks, respectively, whereas for cesarean and macrosomia was 39 weeks. CONCLUSION The optimal timing for IOL at term in GDMA appears to be 39 to 40 weeks.
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Fan X, Chen X, Wang C, Dai J, Lu Y, Wang K, Liu J, Zhang J, Wu X. Drospirenone enhances GPIb-IX-V-mediated platelet activation. J Thromb Haemost 2015; 13:1918-24. [PMID: 26264726 DOI: 10.1111/jth.13109] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 07/31/2015] [Indexed: 12/17/2022]
Abstract
BACKGROUND Epidemiologic studies recently revealed that using drospirenone (DRSP)-containing contraceptives is associated with an increased risk of thrombosis in women. However, the underlying causality is unclear. OBJECTIVE To study the effects of DRSP on coagulation in vitro and the probable mechanisms involved. METHODS First, the effects of DRSP on the activated partial thromboplastin time (APTT), prothrombin time (PT), thrombin time (TT) and fibrinogen (FIB) were measured. Then, the effects of DRSP on platelet activation were investigated in response to low levels of collagen, adenosine 5'-diphosphate (ADP), thrombin, U46619, adrenaline and botrocetin/von Willebrand factor (VWF). RESULTS DRSP has no direct effect on APTT, PT, TT, FIB and platelet aggregation induced by low levels of collagen, ADP, thrombin, U46619 or adrenaline. However, DRSP enhances botrocetin/VWF-induced platelet aggregation and VWF receptor glycoprotein Ib-IX-V (GPIb-IX-V)-mediated signaling. This enhancement can be blocked by the progesterone receptor membrane component 1 (PGRMC1) inhibitor AG205, or by the ADP scavenger apyrase and the cyclooxygenase inhibitor indomethacin. CONCLUSIONS Although DRSP did not directly induce platelet activation, it obviously facilitated VWF receptor GPIb-IX-V-mediated platelet activation. The potential DRSP-binding protein PGRMC1 may play a role in this process. Our study also suggested that the inhibition of thromboxane A2 production and the activation of ADP receptors might prevent the side-effects of DRSP.
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Thakur M, Bolnick A, Abuzeid O, Raju R, Dai J, Puscheck E, Diamond M, Abuzeid M. Comparison of hormonal levels in polycystic ovary patients using short and long antagonist protocols during controlled ovarian stimulation in IVF-ET cycles. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.1003] [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]
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Bolnick A, Thakur M, Raju R, Abuzeid O, Dai J, Puscheck E, Diamond M, Abuzeid M. Hormonal concentrations in pregnant vs not pregnant polycystic ovarian syndrome patients undergoing IVF. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Dai J, Zhan C, Xu W, Wang Z, Nie D, Zhao X, Zhang D, Gu Y, Wang L, Chen Z, Qiao Z. Nicotine elevates sperm motility and inducesPfn1promoter hypomethylation in mouse testis. Andrology 2015; 3:967-78. [DOI: 10.1111/andr.12072] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Revised: 06/08/2015] [Accepted: 06/10/2015] [Indexed: 11/29/2022]
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Cao S, Wang S, Ma H, Tang S, Sun C, Dai J, Wang C, Shu Y, Xu L, Yin R, Song X, Chen H, Han B, Li Q, Wu J, Bai C, Chen J, Jin G, Hu Z, Lu D, Shen H. Genome-wide association study of myelosuppression in non-small-cell lung cancer patients with platinum-based chemotherapy. THE PHARMACOGENOMICS JOURNAL 2015; 16:41-6. [PMID: 25823687 DOI: 10.1038/tpj.2015.22] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 01/07/2015] [Accepted: 01/28/2015] [Indexed: 01/24/2023]
Abstract
Platinum-induced myelosuppression severely impedes successful chemotherapy in non-small-cell lung cancer (NSCLC) patients. Hence, it is clinically important to identify the patients who are at high risk for severe toxicity to certain chemotherapy. We first carried out a genome-wide scan of 906 703 single-nucleotide polymorphisms (SNPs) to identify genetic variants associated with platinum-induced myelosuppression risk in 333 NSCLC patients with chemotherapy. Then, we replicated 24 SNPs that had P<1 × 10(-4) in another independent cohort of 876 NSCLC patients. With P<0.05 as the criterion of statistical significance, we found that rs13014982 at 2q24.3 and rs9909179 at 17p12 exhibited consistently significant associations with myelosuppression risk in both the genome-wide association studies (GWAS) scan and the replication stage (rs13014982: odds ratio (OR)=0.55, 95% confidence intervals (CIs): 0.41-0.74, P=7.29 × 10(-5) for GWAS scan and OR=0.77, 95% CI: 0.65-0.93, P=0.006 for replication stage; rs9909179: OR=0.51, 95% CI: 0.37-0.70, P=4.60 × 10(-5) for GWAS scan and OR=0.82, 95% CI: 0.68-0.99, P=0.040 for replication stage; both in additive model). In combined samples of genome-wide scan and replication samples, the minor alleles of rs13014982 and rs9909179 remained significant associations with the decreased risk of myelosuppression (rs13014982: OR=0.71, 95% CI: 0.61-0.83, P =1.36 × 10(-5); rs9909179: OR=0.76, 95% CI: 0.65-0.89, P=0.001). Rs13014982 at 2q24.3 and rs9909179 at 17p12 might be independent susceptibility markers for platinum-induced myelosuppression risk in NSCLC patients.
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Fang P, Xu W, Li D, Zhao X, Dai J, Wang Z, Yan X, Qin M, Zhang Y, Xu C, Wang L, Qiao Z. A novel acrosomal protein, IQCF1, involved in sperm capacitation and the acrosome reaction. Andrology 2014; 3:332-44. [PMID: 25380116 DOI: 10.1111/andr.296] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 09/08/2014] [Accepted: 09/20/2014] [Indexed: 12/11/2022]
Abstract
On the basis of the unknown tags in the mature human sperm serial analysis of gene expression library constructed by our laboratory, some transcripts were cloned, including Iqcf1 (IQ motif containing F1). To investigate the function of sperm-retained Iqcf1 in spermatogenesis and fertilization of mice, we investigated the spatial and temporal expression of IQCF1. By using the (transcription activator-like effector nuclease) strategy, Iqcf1-knockout mice were produced, and the phenotypes of the Iqcf1(-/-) mice were analyzed. The results showed that IQCF1 was localized in the acrosome of spermatozoa and spermatids; the expression of IQCF1 in testes was associated with spermatogenic capacity. The Iqcf1(-/-) mice were significantly less fertile than the wild-type mice (p = 0.0057) because of reduced sperm motility (p = 0.0094) and the acrosome reaction (AR) (p = 0.0093). In spermatozoa, IQCF1 interacted with calmodulin (CaM) and possibly participated in the tyrosine phosphorylation of sperm proteins during capacitation. In conclusion, a newly identified acrosomal protein, IQCF1, is closely related to sperm capacitation and AR; in particular, it is involved in tyrosine phosphorylation of sperm proteins through interaction with CaM. Research into the function of IQCF1 during fertilization could facilitate the investigation of the molecular mechanism of capacitation, which is unclear.
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Khan S, Shaeib F, Ali I, Dai J, Drewlo S, Saed G, Abu-Soud H. The impact of myleoperoxidase on metaphase ii mouse oocyte quality. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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129
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Bolnick A, Bolnick J, Kilburn B, Oakes J, Dai J, Diamond M, Dey S, Armant D. Homeobox transcription factor msx1 is reduced in human endometrial biopsies of women from infertile couples. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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130
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Li YM, Liu JL, Zhao JL, Dai J, Wang L, Chen JW. Morphological changes in the pharyngeal airway of female skeletal class III patients following bimaxillary surgery: A cone beam computed tomography evaluation. Int J Oral Maxillofac Surg 2014; 43:862-7. [DOI: 10.1016/j.ijom.2014.03.009] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 03/05/2014] [Accepted: 03/10/2014] [Indexed: 10/25/2022]
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131
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Castillo S, Castillo R, Castillo E, Pan T, Ibbott G, Balter P, Hobbs B, Dai J, Guerrero T. TH-E-17A-07: Improved Cine Four-Dimensional Computed Tomography (4D CT) Acquisition and Processing Method. Med Phys 2014. [DOI: 10.1118/1.4889682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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132
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Zhu C, Ren C, Han J, Ding Y, Du J, Dai N, Dai J, Ma H, Hu Z, Shen H, Xu Y, Jin G. A five-microRNA panel in plasma was identified as potential biomarker for early detection of gastric cancer. Br J Cancer 2014; 110:2291-9. [PMID: 24595006 PMCID: PMC4007222 DOI: 10.1038/bjc.2014.119] [Citation(s) in RCA: 177] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Revised: 01/22/2014] [Accepted: 02/10/2014] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Circulating microRNAs (miRNAs) have been implicated as novel biomarkers for gastric cancer (GC) diagnosis. However, the mixture of GC subtypes may have led to the inconsistent circulating miRNA profiles, and the clinical performance of circulating miRNAs has not yet been evaluated independently on early detection of GC. METHODS A four-phase study was designed with a total of 160 cancer-free controls, 124 patients with gastric non-cardia adenocarcinoma (GNCA) and 36 patients diagnosed gastric cardia adenocarcinoma (GCA). In the discovery phase, we screened the miRNA expression profile in plasma of 40 GNCA patients (stage I) and 40 matched controls by TaqMan low density array (TLDA) chips with pooled samples. Differentially expressed miRNAs were further validated in individual sample using quantitative reverse-transcriptase PCR (qRT-PCR) in the training phase. Subsequently, in an independent validation phase, the identified miRNAs were evaluated in 48 GNCA patients (stage I) and 102 matched controls. Finally, the identified miRNAs were further assessed in an external validation phase including advanced GNCA and GCA patients. Additionally, the expression levels of identified miRNAs were measured in the media of BGC823 and MGC803 cell lines. RESULTS Five miRNAs (miR-16, miR-25, miR-92a, miR-451 and miR-486-5p) showed consistently elevated levels in plasma of the GC patients as compared with controls, and were identified to be potential markers for GNCA with area under the receiver operating characteristic (ROC) curves (AUCs) ranging from 0.850 to 0.925 and 0.694 to 0.790 in the training and validation phases, respectively. The five-miRNA panel presented a high diagnostic accuracy for the early-stage GNCA (AUCs=0.989 and 0.812 for the training and validation phases, respectively). Three miRNAs (miR-16, miR-25 and miR-92a) were excreted into the culture media of GC cell lines. CONCLUSIONS The five-miRNA panel in plasma may serve as a potential non-invasive biomarker in detecting the early-stage GC.
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Liu S, Zhu JH, He LP, Dai J, Lu HB, Wu L, Jin KJ, Yang GZ, Zhu H. Label-free, real-time detection of the dynamic processes of protein degradation using oblique-incidence reflectivity difference method. APPLIED PHYSICS LETTERS 2014; 104:163701. [PMID: 24803682 PMCID: PMC4000387 DOI: 10.1063/1.4873676] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2014] [Accepted: 03/30/2014] [Indexed: 06/03/2023]
Abstract
Based on the requirements for studying the dynamic process of proteinase action substrates in life science, we selected six random proteins including 1L-10, SCGB2A2, CENPQ, GST, HK1, KLHL7, as well as five different concentrations of 1L-10 proteins of 1 mg/ml, 0.5 mg/ml, 0.25 mg/ml, 0.125 mg/ml, and 0.0625 mg/ml, and fabricated two types of substrate protein microarrays, respectively. We detected the dynamic processes of proteins degraded by proteinase K using oblique-incidence reflectivity difference (OIRD) method in a label-free and real-time manner. We obtained the relevant degradation velocities and the degradation time. The experimental results demonstrate that OIRD has the ability to study proteinase action substrates which is out of reach of label methods and is expected to offer opportunities to determine protease-substrate relationships on the systems biology level.
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134
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Qin Y, Ji J, Du G, Wu W, Dai J, Hu Z, Sha J, Hang B, Lu C, Xia Y, Wang X. Comprehensive pathway-based analysis identifies associations of BCL2, GNAO1 and CHD2 with non-obstructive azoospermia risk. Hum Reprod 2014; 29:860-6. [DOI: 10.1093/humrep/deu013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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135
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Mackey HR, Zheng YS, Tang WT, Dai J, Chen GH. Combined seawater toilet flushing and urine separation for economic phosphorus recovery and nitrogen removal: a laboratory-scale trial. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2014; 70:1065-1073. [PMID: 25259496 DOI: 10.2166/wst.2014.335] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Freshwater toilet flushing consumes 20-35% of typical household water demand. Seawater toilet flushing, as practised by Hong Kong since 1958, provides an alternative water source. To maximise the benefits of this unique dual water supply, urine separation could be combined to allow low-cost struvite production and subsequent urine nitrification - in-sewer denitrification. This paper reports on a laboratory-scale study of seawater urine phosphate recovery (SUPR) and seawater-urine nitrification. A laboratory-scale SUPR reactor was run under three phases with hydraulic retention time between 1.5 and 6 h, achieving 91-96% phosphorus recovery. A urine nitrification sequencing batch reactor (UNSBR) was also run for a period of over 650 days, averaging 90% ammonia removal and loading of up to 750 mg-N/L.d. Careful control of the SUPR phosphate removal was found necessary for operation of the downstream UNSBR, and system integration considerations are discussed.
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Hall J, Yang M, Meng Q, Dai J, Polejaeva IA. 39 EFFECT OF FOLLICULAR SIZE OF CYTOPLAST DONOR ON CLONING EFFICIENCY IN GOATS. Reprod Fertil Dev 2014. [DOI: 10.1071/rdv26n1ab39] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
In goats, oocytes derived from small follicles (<3 mm in diameter) have low developmental competence after IVF (Crozet et al. 1995). However, their performance is compatible to oocytes derived from large follicles (>3 mm) when intracytoplasmic sperm injection is used (Jimenez-Macedo et al. 2006). No data are currently available on the ability of oocytes derived from small follicles to support development to term after somatic cell nuclear transfer (SCNT) in goats. Here we evaluated the effect of follicular size of cytoplast donor on cloning efficiency in goats. Seven rounds of oocyte maturation and nuclear transfer were carried out on separate days. During each replicate, oocytes were collected separately from large follicles (LF, n = 378) and small follicles (SF, n = 981) from the same group of ovaries. First, only large follicles (>3 mm) were dissected and rinsed, and then an ovary was moved to another dish to dissect the rest of the follicles. The groups of oocytes derived from LF and SF were treated separately throughout the process including maturation, SCNT, embryo culture and embryo transfers. Neonatal skin fibroblasts derived from transgenic goats were used as nuclear donors in this study. Nine embryo transfers were conducted for LF group and 12 for the SF group. Oocytes from SF had significantly lower rate of nuclear maturation compared to oocytes derived from LF (33.5% ± 3.7 v. 54.3% ± 5.4; P < 0.01). There was no difference in fusion rate between these 2 groups (66 v. 69%; 215/325 v. 138/199; SF v. LF). Additionally, we found no statistical difference in Day 30 pregnancy rate (42% v. 33%; SF v. LF group) or birth rate (2 healthy kids produced from each of the groups, 16.7% v. 22.2%; SF v. LF). The results demonstrate that oocytes from small follicles have similar competence to support development to term as oocytes derived from large follicles following SCNT in goats.
This work was supported by the Utah Multidisciplinary Arrhythmia Consortium and Utah Agricultural Experiment Station project #1100.
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Marais L, Dai J, Allaire E, Zidi M. P8.9 MECHANICAL BEHAVIOR OF THE ABDOMINAL AORTIC ANEURYSM OBTAINED FROM THE RAT XENOGRAFT MODEL AND TREATED BY MESENCHYMAL STEM CELLS. Artery Res 2014. [DOI: 10.1016/j.artres.2014.09.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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138
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Dai J, Belomestnykh S, Ben-Zvi I, Xu W. The external Q factor of a dual-feed coupling for superconducting radio frequency cavities: theoretical and experimental studies. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2013; 84:113304. [PMID: 24289393 DOI: 10.1063/1.4828790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We propose a theoretical model based on network analysis to study the external quality factor (Q factor) of dual-feed coupling for superconducting radio-frequency (SRF) cavities. Specifically, we apply our model to the dual-feed 704 MHz half-cell SRF gun for Brookhaven National Laboratory's prototype Energy Recovery Linac (ERL). The calculations show that the external Q factor of this dual-feed system is adjustable from 10(4) to 10(9) provided that the adjustment range of a phase shifter covers 0°-360°. With a period of 360°, the external Q factor of the coupling system changes periodically with the phase difference between the two coupling arms. When the RF phase of both coupling arms is adjusted simultaneously in the same direction, the external Q factor of the system also changes periodically, but with a period of 180°.
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Liu W, Men K, Lin L, Liu L, Zheng R, Dai J, Wang L. Functional Avoidance of Lung in IMRT Plan With SPECT Imaging. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1380] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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140
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Franck G, Dai J, Fifre A. Reestablishment of the Endothelial Lining by Endothelial Cell Therapy Stabilizes Experimental Abdominal Aortic Aneurysms. J Vasc Surg 2013. [DOI: 10.1016/j.jvs.2013.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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141
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Ji GF, Zhang JS, Ma L, Fan P, Wang PS, Dai J, Tan GT, Song Y, Zhang CL, Dai P, Normand B, Yu W. Simultaneous optimization of spin fluctuations and superconductivity under pressure in an iron-based superconductor. PHYSICAL REVIEW LETTERS 2013; 111:107004. [PMID: 25166698 DOI: 10.1103/physrevlett.111.107004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 07/30/2013] [Indexed: 06/03/2023]
Abstract
We present a high-pressure NMR study of the overdoped iron pnictide superconductor NaFe0.94Co0.06As. The low-energy antiferromagnetic spin fluctuations in the normal state, manifest as the Curie-Weiss upturn in the spin-lattice relaxation rate 1/(75)T1T, first increase strongly with pressure but fall again at P>Popt=2.2 GPa. Neither long-ranged magnetic order nor a structural phase transition is encountered up to 2.5 GPa. The superconducting transition temperature Tc shows a pressure dependence identical to the spin fluctuations. Our observations demonstrate that magnetic correlations and superconductivity are optimized simultaneously as a function of the electronic structure, thereby supporting very strongly a magnetic origin of superconductivity.
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Najeemuddin R, Al-Safi Z, Singh M, Mersol-Barg M, Dai J, Diamond M. Sac size and fetal heart rate as a predictor of miscarriage in patients undergoing infertility treatment. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.1000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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143
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Zhang H, Yu C, Dai J, Keller JM, Hua A, Sottnik JL, Shelley G, Hall CL, Park SI, Yao Z, Zhang J, McCauley LK, Keller ET. Parathyroid hormone-related protein inhibits DKK1 expression through c-Jun-mediated inhibition of β-catenin activation of the DKK1 promoter in prostate cancer. Oncogene 2013; 33:2464-77. [PMID: 23752183 DOI: 10.1038/onc.2013.203] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2012] [Revised: 03/26/2013] [Accepted: 04/19/2013] [Indexed: 12/17/2022]
Abstract
Prostate cancer (PCa)bone metastases are unique in that majority of them induce excessive mineralized bone matrix, through undefined mechanisms, as opposed to most other cancers that induce bone resorption. Parathyroid hormone-related protein (PTHrP) is produced by PCa cells and intermittent PTHrP exposure has bone anabolic effects, suggesting that PTHrP could contribute to the excess bone mineralization. Wnts are bone-productive factors produced by PCa cells, and the Wnt inhibitor Dickkopfs-1 (DKK1) has been shown to promote PCa progression. These findings, in conjunction with the observation that PTHrP expression increases and DKK1 expression decreases as PCa progresses, led to the hypothesis that PTHrP could be a negative regulator of DKK1 expression in PCa cells and, hence, allow the osteoblastic activity of Wnts to be realized. To test this, we first demonstrated that PTHrP downregulated DKK1 mRNA and protein expression. We then found through multiple mutated DKK1 promoter assays that PTHrP, through c-Jun activation, downregulated the DKK1 promoter through a transcription factor (TCF) response element site. Furthermore, chromatin immunoprecipitation (ChIP) and re-ChIP assays revealed that PTHrP mediated this effect through inducing c-Jun to bind to a transcriptional activator complex consisting of β-catenin, which binds the most proximal DKK1 promoter, the TCF response element. Together, these results demonstrate a novel signaling linkage between PTHrP and Wnt signaling pathways that results in downregulation of a Wnt inhibitor allowing for Wnt activity that could contribute the osteoblastic nature of PCa.
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144
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Chen J, Dai J. SU-E-T-631: A Fixed Jaw Method to Protect Critical Organs in Intensity-Modulated Radiotherapy. Med Phys 2013. [DOI: 10.1118/1.4815059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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145
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Ma P, Wang L, Lu N, Xu Y, Dai J. SU-E-T-710: Competitive Advantage Applying the Volume-Modulated Arc Techniques to Radiotherapy of Upper Esophageal Carcinoma. Med Phys 2013. [DOI: 10.1118/1.4815137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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146
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You GL, Ding QL, Lu YL, Dai J, Xi XD, Wang XF, Wang HL. Characterization of large deletions in the F8 gene using multiple competitive amplification and the genome walking technique. J Thromb Haemost 2013; 11:1103-10. [PMID: 23551875 DOI: 10.1111/jth.12205] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 03/15/2013] [Indexed: 11/29/2022]
Abstract
BACKGROUND Large deletions in the F8 gene are responsible for approximately 3% of severe hemophilia A (HA) cases. However, only a few breakpoints in large deletions have been characterized. OBJECTIVES To identify large deletions in the F8 gene and to characterize the molecular mechanisms leading to these deletions. PATIENTS AND METHODS We used AccuCopy technology, a copy number variation (CNV) genotyping method based on multiplex competitive amplification, to confirm deletions in index patients and to screen potential female carriers in 10 HA families. Also, breakpoints of these large deletions were characterized by a primer walking strategy and genome walking technique. RESULTS Ten large deletions and four female carriers were identified by AccuCopy. The extents of deleted regions ranged from 1.3 to 68.5 kb. Exact breakpoints of these deletions were successfully characterized. Eight of them presented microhomologies at breakpoint junctions and several recombination-associated elements (repetitive elements, non-B conformation forming motifs and sequence motifs) were also observed in close proximity to the junctions. CONCLUSIONS AccuCopy technology is a reliable and efficient tool for detecting large deletions in the F8 gene and identifying HA female carriers. The genome walking technique is a highly specific, efficient and versatile method for characterizing the deletion breakpoints. Molecular characterization of deletion breakpoints revealed that non-homologous end joining and microhomology-mediated replication-dependent recombination were the major causative mechanisms of the 10 large deletions in the F8 gene.
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Kang M, Dai J, Huang M, Xu Y, An J. SU-E-T-619: Dosimetric Comparison Between Static IMRT and VMAT for Cervical Cancer. Med Phys 2013. [DOI: 10.1118/1.4815047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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148
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Ren W, Dai J. SU-E-I-16: A Data Compression Device for 4D CBCT. Med Phys 2013. [DOI: 10.1118/1.4814126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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149
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Zhang X, Dai J, Lu L, Zhang J, Zhang M, Wang Y, Guo M, Wang X, Wang M. Experimentally created unilateral anterior crossbite induces a degenerative ossification phenotype in mandibular condyle of growing Sprague-Dawley rats. J Oral Rehabil 2013; 40:500-8. [DOI: 10.1111/joor.12072] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/26/2013] [Indexed: 12/25/2022]
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150
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Dai J, Peng H, Chen W, Cheng J, Wu Y. Development of multiplex real-time PCR for simultaneous detection of three Potyviruses in tobacco plants. J Appl Microbiol 2013; 114:502-8. [PMID: 23164070 DOI: 10.1111/jam.12071] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Revised: 09/21/2012] [Accepted: 10/26/2012] [Indexed: 11/29/2022]
Abstract
AIMS To develop a multiplex real-time PCR assay using TaqMan probes for the simultaneous detection and quantification of Tobacco etch virus (TEV), Potato virus Y (PVY) and Tobacco vein banding mosaic virus (TVBMV). METHODS AND RESULTS Specific primer and probe combinations for TEV and TVBMV were developed from the coat protein region of the viral genome. To detect PVY, a primer and probe combination PVY-Univ F, PVY-Univ R and PVY-Univ P for amplifying the coat protein region of the virus genome was employed. The detection limit of multiplex real-time PCR for these viruses was 10 copies μl(-1) of the standard plasmid. The multiplex reaction was successful in the detection of these three pathogens, with no non-specific amplification and cross-reaction. CONCLUSIONS This multiplex real-time PCR provides a rapid, effective, specific and sensitive method for the simultaneous detection and quantification of the three pathogens on infected tobacco plants. SIGNIFICANCE AND IMPACT OF THE STUDY This multiplex real-time PCR will be useful not only for diagnostic, ecological, epidemiological and pathogenesis studies, but also for investigating host/virus or virus/virus interactions, in particular during mix infection.
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