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Duan J, Shen S, Wu X, Popple R, Cardan R, Huang M, Tannazi F, Brezovich I. SU-E-T-655: Quantifying the Dosimetric Characteristics of a Calypso Compatible Radiotherapy Treatment Couch with Angular Transmission Functions. Med Phys 2015. [DOI: 10.1118/1.4925018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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102
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Huang M, Brezovich I, Duan J, Wu X, Shen S, Cardan R, Fiveash J, Popple R. SU-E-T-453: Image-Guided Patient-Specific Quality Assurance for Multi-Target Single Isocenter Intracranial VMAT Radiosurgery. Med Phys 2015. [DOI: 10.1118/1.4924815] [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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103
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Shen S, Jacob R, Popple R, Duan J, Wu X, Cardan R, Brezovich I. SU-E-J-38: Improved DRR Image Quality Using Polyetheretherketone (PEEK) Fiducial in Image Guided Radiotherapy (IGRT). Med Phys 2015. [DOI: 10.1118/1.4924125] [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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104
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Tannazi F, Huang M, Thomas E, Duan J, Wu X, Shen S, Cardan R, Fiveash J, Brezovich I, Popple R. SU-E-T-291: Dosimetric Accuracy of Multitarget Single Isocenter Radiosurgery. Med Phys 2015. [DOI: 10.1118/1.4924653] [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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105
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Kim R, Taylor R, Lopez-Araujo J, Burnett O, Shen S. PO-1027: Reducing vaginal wall dose for HDR interstitial brachytherapy of gynecological cancer: dosimetric comparison. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41019-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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106
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Gu JS, Sun RR, Shen S, Yu ZJ. EVALUATION OF ANTIVIRAL THERAPY TREATMENT FOR LIVER CIRRHOSIS CAUSED BY CHRONIC HEPATITIS C AND HEPATITIS C BY 31P-MRS, BASED ON METABOLITE DETECTION. J BIOL REG HOMEOS AG 2015; 29:443-450. [PMID: 26122235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
This study discusses the application of magnetic resonance spectrum (MRS) to evaluate the efficacy of antiviral therapy in the treatment of liver cirrhosis caused by chronic hepatitis C and hepatitis C, based on metabolite detection. A total of 54 patients with liver cirrhosis caused by chronic hepatitis C and hepatitis C were selected and divided into treatment group and control group. 31P-MRS imaging was carried out on patients in the two groups both before receiving antiviral treatment and 6 months after treatment to compare the change of metabolite ratio (PE+PC)/(GPE+GPC). It was revealed that no statistically significant difference was found in the comparison of (PC+PE)/(GPC+GPE) ratio in the two groups before treatment, but the difference was found 6 months after treatment; ratio of (PC+PE)/ (GPC+GPE) in the treatment group distinctly decreased 6 months after treatment compared to before treatment, with a statistically significant difference, while the control group had no remarkable change or statistical significance. Moreover, 32 patients were found with sustained virus response to antiviral therapy. Of these, 25 patients possessed a decreased ratio of (PC+PE)/ (GPC+GPE), 4 remained without change and 3 had a slightly increased ratio after antiviral treatment. Of 12 patients with no response, 1 had a decreased ratio of (PC+PE)/ (GPC+GPE), 2 remained without change and 9 had a slightly increased ratio. The differences were all statistically significant in comparison of the two groups. 31P-MRS is thought to be effective for evaluating the efficacy of antiviral therapy through non-invasive detection of liver energy metabolism.
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107
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Lim DK, Shen S, Jejah IA, Cullen JF. Unusual optic disc infarction in a case of arteritic anterior ischaemic optic neuropathy (AAION). Singapore Med J 2015; 56:e36-8. [PMID: 25820857 DOI: 10.11622/smedj.2015048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Herein, we report another case of arteritic anterior ischaemic optic neuropathy from Singapore, in which the initial optic disc swelling was extreme and the sequential disease resolved because the patient was already on maximum treatment. As the management of this biopsy-proven giant cell arteritis case was complicated by the presence of a number of other medical conditions, including end-stage renal failure, monitoring of the response to treatment proved problematic.
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108
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Cai Y, Liu T, Fang F, Shen S, Xiong C. Involvement of ICAM-1 in impaired spermatogenesis after busulfan treatment in mice. Andrologia 2015; 48:37-44. [DOI: 10.1111/and.12414] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2015] [Indexed: 01/14/2023] Open
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109
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Shen S, Zhou Y, Xu Y, Zhang B, Duan X, Huang R, Li B, Shi Y, Shao Z, Liao H, Jiang J, Shen N, Zhang J, Yu C, Jiang H, Li S, Han S, Ma J, Sun Q. A multi-centre randomised trial comparing ultrasound vs mammography for screening breast cancer in high-risk Chinese women. Br J Cancer 2015; 112:998-1004. [PMID: 25668012 PMCID: PMC4366890 DOI: 10.1038/bjc.2015.33] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 01/09/2015] [Accepted: 01/12/2015] [Indexed: 11/24/2022] Open
Abstract
Background: Chinese women tend to have small and dense breasts and ultrasound is a common method for breast cancer screening in China. However, its efficacy and cost comparing with mammography has not been evaluated in randomised trials. Methods: At 14 breast centres across China during 2008–2010, 13 339 high-risk women aged 30–65 years were randomised to be screened by mammography alone, ultrasound alone, or by both methods at enrolment and 1-year follow-up. Results: A total of 12 519 and 8692 women underwent the initial and second screenings, respectively. Among the 30 cancers (of which 15 were stage 0/I) detected, 5 (0.72/1000) were in the mammography group, 11 (1.51/1000) in the ultrasound group, and 14 (2.02/1000) in the combined group (P=0.12). In the combined group, ultrasound detected all the 14 cancers, whereas mammography detected 8, making ultrasound more sensitive (100 vs 57.1%, P=0.04) with a better diagnostic accuracy (0.999 vs 0.766, P=0.01). There was no difference between mammography and ultrasound in specificity (100 vs 99.9%, P=0.51) and positive predictive value (72.7 vs 70.0% P=0.87). To detect one cancer, the costs of ultrasound, mammography, and combined modality were $7876, $45 253, and $21 599, respectively. Conclusions: Ultrasound is superior to mammography for breast cancer screening in high-risk Chinese women.
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110
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Li Z, He M, Dong X, Lin H, Ge H, Shen S, Li J, Ye RD, Chen D. New erythromycin derivatives enhance β-lactam antibiotics against methicillin-resistant Staphylococcus aureus. Lett Appl Microbiol 2015; 60:352-8. [PMID: 25588530 DOI: 10.1111/lam.12378] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Revised: 12/03/2014] [Accepted: 12/03/2014] [Indexed: 11/26/2022]
Abstract
UNLABELLED Newly synthesized erythromycin derivatives were screened for synergy with oxacillin and other β-lactam antibiotics against methicillin-resistant Staphylococcus aureus (MRSA). MRSA ATCC43300 and some clinically isolated MRSA were used. Several erythromycin derivatives were found to possess high synergism with oxacillin against MRSA. The newly synthesized erythromycin derivatives were also tested for their inhibitory effects against MRSA, either separately or in combination with oxacillin, using serial broth dilution, disc diffusion, Etest strips, growth curves and time-kill curves. A representative derivative, SIPI-8294, could potentiate almost all β-lactam antibiotics tested against the model strain MRSA ATCC43300 from 4 to 128 times and had synergism with oxacillin against 12 of 16 clinical isolates of MRSA under one-fourth of the minimum inhibitory concentration (MIC) of the compounds. This is the first report on the synergistic activity of these new erythromycin derivatives. These findings provide a new choice for the treatment of infection caused by MRSA and lead us to further study the synergistic mechanism. SIGNIFICANCE AND IMPACT OF THE STUDY This study is the first report on the synergy of anti-MRSA between new erythromycin derivatives and β-lactam antibiotics in vitro. The results show that although the erythromycin derivatives have poor anti-MRSA effects alone, they possess high synergism with oxacillin against MRSA ATCC43300 and clinically isolated MRSA. These novel compounds can significantly reduce the dosage of β-lactam antibiotics against MRSA, while this synergistic effect is different from the combination of β-lactams and β-lactamase inhibitors. The research may provide a new choice for the treatment of infection caused by MRSA and be useful to the research and development of new combination of medicines.
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111
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Loutfy MR, Antoniou T, Shen S, Diong C, Vlaicu M, Halpenny R, Kovacs C, Fletcher D, Raboud JM. Virologic and Immunologic Impact and Durability of Enfuvirtide-Based Antiretroviral Therapy in HIV-Infected Treatment-Experienced Patients in a Clinical Setting. HIV CLINICAL TRIALS 2015; 8:36-44. [PMID: 17434847 DOI: 10.1310/hct0801-36] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To evaluate the effectiveness and safety of enfuvirtide-based therapy in treatment-experienced patients in a clinical setting. METHOD Retrospective study of treatment-experienced patients receiving enfuvirtide-based therapy for a minimum of 2 months. Endpoints included virologic suppression, virologic rebound, immunologic response, and adverse events. RESULTS Sixty-four patients were eligible for inclusion in the analysis. Median baseline viral load and CD4+ count were 4.7 log10 copies/mL (interquartile range [IQR], 4.0-5.2) and 150 cells/mm3 (IQR, 60-250), respectively. At month 12, viral load declined by a median of 2.53 log10 copies/mL (IQR, 0.97-3.12). The unadjusted median time to virologic suppression was 7.7 months (95% CI 4.1-10.4 months). Baseline viral load and number of protease inhibitors in the current regimen were significantly associated with virologic suppression following multivariate analysis (hazard ratio [HR] 0.45, 95% CI 0.31-0.63, p < .0001, and HR 0.51, 95% CI 0.27-0.94, p = .03, respectively). Among the 42 patients who attained sustained virologic suppression, 10 experienced virologic rebound during a median follow-up of 13.3 months (IQR, 7.0-19.1). Injection site reactions were reported in 33 (52%) patients, resulting in treatment discontinuation in nine patients. CONCLUSION Enfuvirtide-based therapy provides durable antiretroviral activity for treatment-experienced patients in a clinical setting.
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Neofytos D, Kuhn B, Shen S, Hua Zhu X, Jungkind D, Flomenberg P. Emergence of Staphylococcal Cassette ChromosomemecType IV Methicillin-ResistantStaphylococcus aureusas a Cause of Ventilator-Associated Pneumonia. Infect Control Hosp Epidemiol 2015; 28:1206-9. [PMID: 17828701 DOI: 10.1086/520746] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2007] [Accepted: 05/14/2007] [Indexed: 11/03/2022]
Abstract
Staphylococcal cassette chromosomemec(SCCmec) type IV methicillin-resistantStaphylococcus aureus(MRSA) strains were identified in 8 (19.5%) of 41 consecutive patients with MRSA ventilator-associated pneumonia (VAP) in this retrospective, observational study. There were no significant differences in VAP severity and crude mortality rates between patients with SCCmectype II strains and patients with SCCmectype IV strains.
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113
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Guo W, Zhang M, Guo Y, Shen S, Guo X, Dong Z. FBXO32, a new TGF-β/Smad signaling pathway target gene, is epigenetically inactivated in gastric cardia adenocarcinoma. Neoplasma 2015; 62:646-57. [PMID: 25997968 DOI: 10.4149/neo_2015_078] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
FBXO32 has recently been identified as a TGF-β/Smad signaling pathway target gene, involved in regulating cell survival and may be transcriptionally silenced by epigenetic mechanisms in some kind of carcinomas. The present study was to investigate the role and promoter methylation status of FBXO32 in gastric cardia adenocarcinoma (GCA), and determine the prognostic significance of FBXO32 in GCA. Bisulfite Conversion-Specific and Methylation-Specific PCR, real-time RT-PCR and immunohistochemical staining methods were used to detect the methylation status and expression of FBXO32 in GCA samples. The frequency of FBXO32 methylation in GCA tumor tissues (44.6%) was significantly higher than that in corresponding normal tissues (3.6%) and was associated with TNM stage, pathological differentiation, distant metastasis or recurrence and upper gastrointestinal cancers (UGIC) family history. Decreased mRNA and protein expression of FBXO32 was observed in GCA tumor tissues and was associated with FBXO32 promoter methylation status. A positive correlation between FBXO32 and p-Smad2/3, Smad4 protein expression was also found in clinical specimens. GCA patients in stage III and IV, with positive UGIC family history, and hypermethylation and down-expression of FBXO32 were most likely to develop metastatic disease and also showed the worse survival. In all, aberrant hypermethylation of FBXO32 may be one of the mechanisms that lead to loss or down expression of the gene in GCA, FBXO32 may be a functional tumor suppressor and reactivation of FBXO32 gene may has therapeutic potential and may be used as a prognostic marker for GCA patients.
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Zhang Q, Lin Y, Shen S, Xing Z, Ruan X. Simulation and Optimization on Cellulase Immobilization Using Response Surface Methodology. ACTA ACUST UNITED AC 2015. [DOI: 10.7763/ijesd.2015.v6.677] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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115
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Begum T, Khalil M, Rahman MM, Shen S, Sultana SZ, Mannan S, Ara ZG, Chowdhury AI, Haque MA, Ara A. The site of attachment of umbilical cord and branching pattern of umbilical arteries within the placenta. Mymensingh Med J 2014; 23:644-648. [PMID: 25481579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Placenta is the mirror of maternal and fetal status; it reflects the changes due to complication in pregnancy of mother. Numerous common and uncommon findings of the placenta, umbilical cord and membranes are associated with abnormal fetal development and perinatal morbidity. So, the examination of the placenta can yield information that may be important in the immediate and later management of mother and newborn. This information may also be essential for protecting the attending physician in the event of an adverse maternal or fetal outcome. This cross sectional descriptive study was carried out to determine the incidence of different types of placenta depending on attachment site and branching pattern of arteries of umbilical cord in Bangladeshi Women. To achieve this aim sixty placenta with umbilical cord were collected. Placenta was from 28 weeks to 42 weeks gestational age of normal pregnancy during normal labour at gynaecology and obstetric department of Mymensingh Medical College Hospital. After preservation in 10% formol saline, study was done in the Department of Anatomy of Mymensingh Medical College. In the present study, incidence of different types of placenta depending on attachment site of umbilical cord was 50% Central, 46% Paracentral and 18% Marginal in type. In this study it was also observed that 58% placenta were Disperse in type and 42% were Magistral in type depending on the distribution of umbilical arteries. Observed findings of this study were compared with those of Western and Bangladeshi researchers.
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Shen S, Benhabib S, Duan J, Keene K, Delossantos J, Meredith R. Variation in Boost Dose to Breast Cancer Tumor Bed in Deep Inspiration Breath-Hold Radiation Therapy Evaluated With Feedback-Guided CBCT. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.882] [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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117
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Duan J, Shen S, Wu X, Huang M, Benhabib S, Cardan R, Popple R, Brezovich I. SU-E-T-417: A Method for Predicting and Correcting the Dosimetric Effect of a Radiotherapy Treatment Couch in Actual Treatment Position. Med Phys 2014. [DOI: 10.1118/1.4888750] [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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118
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Benhabib S, Duan J, Wu X, Cardan R, Shen S, Huang M, Popple R, Brezovich I. SU-E-T-98: Dependence of Radiotherapy Couch Transmission Factors On Field Size and Couch-Isocenter Distance. Med Phys 2014. [DOI: 10.1118/1.4888428] [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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119
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Popple R, Cardan R, Duan J, Wu X, Shen S, Brezovich I. SU-E-T-27: A Tool for Routine Quality Assurance of Radiotherapy Dose Calculation Software. Med Phys 2014. [DOI: 10.1118/1.4888357] [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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120
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Brezovich I, Wu X, Duan J, Benhabib S, Huang M, Shen S, Cardan R, Popple R. WE-G-BRD-08: End-To-End Targeting Accuracy of the Gamma Knife for Trigeminal Neuralgia. Med Phys 2014. [DOI: 10.1118/1.4889492] [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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121
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Shen S, Kim R, Benhabib S, Araujo J, Burnett L, Duan J, Popple R, Wu X, Cardan R, Brezovich I. SU-E-T-507: Interfractional Variation of Fiducial Marker Position During HDR Brachytherapy with Cervical Interstitial Needle Template. Med Phys 2014. [DOI: 10.1118/1.4888840] [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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122
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Brezovich I, Popple R, Duan J, Huang M, Benhabib S, Shen S, Cardan R, Wu X. SU-E-J-138: An IGRT QA Device for Measuring with Tenths-Millimeter Accuracy KV and MV Isocenter Congruence, Couch Travel and Laser Alignment of Accelerators Used for SRS and SBRT. Med Phys 2014. [DOI: 10.1118/1.4888191] [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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123
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Wu X, Duan J, Popple R, Cardan R, Huang M, Benhabib S, Shen S, Brezovich I. SU-E-T-259: Particle Swarm Optimization in Radial Dose Function Fitting for a Novel Iodine-125 Seed. Med Phys 2014. [DOI: 10.1118/1.4888590] [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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124
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Pei Z, Lang B, Fragoso YD, Shearer KD, Zhao L, Mccaffery PJA, Shen S, Ding YQ, McCaig CD, Collinson JM. The expression and roles of Nde1 and Ndel1 in the adult mammalian central nervous system. Neuroscience 2014; 271:119-36. [PMID: 24785679 PMCID: PMC4048543 DOI: 10.1016/j.neuroscience.2014.04.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Revised: 04/08/2014] [Accepted: 04/18/2014] [Indexed: 11/01/2022]
Abstract
Mental and neurological illnesses affect one in four people. While genetic linkage analyses have shown an association of nuclear distribution factor E (NDE1, or NudE) and its ohnolog NDE-like 1 (NDEL1, or Nudel) with mental disorders, the cellular mechanisms remain unclear. In the present study, we have demonstrated that Nde1 and Ndel1 are differentially localised in the subventricular zone (SVZ) of the forebrain and the subgranular zone (SGZ) of the hippocampus, two regions where neurogenesis actively occurs in the adult brain. Nde1, but not Ndel1, is localized to putative SVZ stem cells, and to actively dividing progenitors of the SGZ. The influence of these proteins on neural stem cell differentiation was investigated by overexpression in a hippocampal neural stem cell line, HCN-A94. Increasing Nde1 expression in this neural stem cell line led to increased neuronal differentiation while decreasing levels of astroglial differentiation. In primary cultured neurons and astrocytes, Nde1 and Ndel1 were found to have different but comparable subcellular localizations. In addition, we have shown for the first time that Nde1 is heterogeneously distributed in cortical astrocytes of human brains. Our data indicate that Nde1 and Ndel1 have distinct but overlapping distribution patterns in mouse brain and cultured nerve cells. They may function differently and therefore their dosage changes may contribute to some aspects of mental disorders.
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Dolnikov A, Xu N, Shen S, O'Brien T. Increasing stem cell dose promotes the longevity of the graft in mice transplanted with human cord blood stem cells. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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