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Kume M, Mori S. Sea-run migratory behaviour in the Japan Sea form of three-spined stickleback Gasterosteus aculeatus in the tidal pool of eastern Hokkaido Island, Japan. J Fish Biol 2009; 75:2845-2850. [PMID: 20738529 DOI: 10.1111/j.1095-8649.2009.02472.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Juveniles in the Japan Sea form of three-spined stickleback Gasterosteus aculeatus collected from a tidal pool in eastern Hokkaido Island, Japan, had a unimodal standard length (L(S)) frequency distribution in each period, ranging from 11.9 to 31.6 mm, and those of sea-run migrating individuals collected from the outlet of this tidal pool ranged from 17.0 to 36.0 mm, suggesting juveniles of this form would migrate towards the sea when they reached >17.0 mm. In general linear models (GLM) for testing the best model, there was a relationship between the number of sea-run migratory individual and precipitation, which suggests that precipitation may trigger migration.
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Affiliation(s)
- M Kume
- Laboratory of Fish Population Dynamics, Graduate School of Bioresources, Mie University, 1577, Kurimamachiya-cho, Tsu, Mie 514-8507, Japan.
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Chen G, Hong T, Hallman J, Sharp G, Wolfgang J, Lu H, Mori S. 4D Proton Treatment Planning for Liver Tumors. Int J Radiat Oncol Biol Phys 2009. [DOI: 10.1016/j.ijrobp.2009.07.1591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
A non-viral gene delivery approach with nano/microbubbles and ultrasound offers opportunities for targeting soft tissues for gene therapy. The periodontium is a complex structure comprised of hard (cementum, alveolar bone) and soft tissues (periodontal ligament, gingivae). We hypothesized that our established gene delivery method would allow the periodontal tissue to be targeted for transfection for gene therapy. Expression kinetics and sites of transfection sites with this approach were investigated in rat periodontal tissue. Bioluminescence imaging revealed that transient gene expression was induced at day 1 posttransfection, while confocal microscopy showed that gene expression was localized in the muscle cells of gingival tissues. These findings indicate that regular transfection with this approach results in high gene expression, facilitating gene therapy for periodontal disease involving alveolar bone resorption.
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Affiliation(s)
- R Chen
- Molecular Delivery System Laboratory, Department of Biomedical Engineering, Graduate School of Biomedical Engineering, Tohoku University, 2-1 Seiryo-machi, Aoba-ku, Sendai 980-8575, Japan
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Mahmood A, Bibat G, Zhan AL, Izbudak I, Farage L, Horska A, Mori S, Naidu S. White matter impairment in Rett syndrome: diffusion tensor imaging study with clinical correlations. AJNR Am J Neuroradiol 2009; 31:295-9. [PMID: 19833797 DOI: 10.3174/ajnr.a1792] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE RTT, caused by mutations in the methyl CPG binding protein 2 (MeCP2) gene, is a disorder of neuronal maturation and connections. Our aim was to prospectively examine FA by DTI and correlate this with certain clinical features in patients with RTT. MATERIALS AND METHODS Thirty-two patients with RTT underwent neurologic assessments and DTI. Thirty-seven age-matched healthy female control subjects were studied for comparison. With use of a 1.5T MR imaging unit, DTI data were acquired, and FA was evaluated to investigate multiple regional tract-specific abnormalities in patients with RTT. RESULTS In RTT, significant reductions in FA were noted in the genu and splenium of the corpus callosum and external capsule, with regions of significant reductions in the cingulate, internal capsule, posterior thalamic radiation, and frontal white matter. In contrast, FA of visual pathways was similar to control subjects. FA in the superior longitudinal fasciculus, which is associated with speech, was equal to control subjects in patients with preserved speech (phrases and sentences) (P = .542), whereas FA was reduced in those patients who were nonverbal or speaking only single words (P < .001). No correlations between FA values for tracts and clinical features such as seizures, gross or fine motor skills, and head circumference were identified. CONCLUSIONS DTI, a noninvasive technique to assess white matter tract pathologic features, may add specificity to the assessment of RTT clinical severity that is presently based on the classification of MeCP2 gene mutation and X-inactivation.
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Affiliation(s)
- A Mahmood
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas, USA
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Mori S, Polatino S, Estrada-Y-Martin RM. Pneumocystis-associated organizing pneumonia as a manifestation of immune reconstitution inflammatory syndrome in an HIV-infected individual with a normal CD4+ T-cell count following antiretroviral therapy. Int J STD AIDS 2009; 20:662-5. [PMID: 19710347 DOI: 10.1258/ijsa.2008.008428] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We describe a rare case of Pneumocystic jirovecii-associated organizing pneumonia (PJP) in an HIV-infected individual on highly active antiretroviral therapy (HAART) with a CD4(+) T-cell count of 835 x 10(3) cells/mL and a low viral load. PJP was confirmed using transbronchial biopsies and bronchoalveolar lavage. The presentation in this patient suggests immune reconstitution inflammatory syndrome (IRIS) after institution of antiretroviral therapy (ART). This case report, however, is the first documented presentation of PJP in a patient with CD4 count greater than 300 prior to the induction of HAART who developed PJP and organizing pneumonia as a manifestation of IRIS. This suggests that there is continuing immune dysfunction in the face of re-expansion of CD4(+) T-cells and low viral load in HIV patients despite ART.
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Affiliation(s)
- S Mori
- Internal Medicine, The University of Texas Health Sciences Center Houston, Houston, Texas 77030, USA.
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Watanabe S, Ishioka N, Osa A, Koizumi M, Sekine T, Kiyomiya S, Nakanishi H, Mori S. Production of positron emitters of metallic elements to study plant uptake and distribution. RADIOCHIM ACTA 2009. [DOI: 10.1524/ract.2001.89.11-12.853] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The metallic positron emitters 52Mn, 52Fe and 62Zn, the elements of which are essential nutrients for plants as well as for animals, have been produced for a new tracer method in plant physiology. The tracer method utilizes the detection of annihilation γ-rays, like PET in nuclear medicine, to obtain two-dimensional images on a plant as well as to obtain radioactivity counts at specified points in a plant; this method allows us to observe the tracer movement in a living plant without touching the test plant. The previously reported methods of radiochemical separation of these metallic positron emitters from targets were partly modified from the view of their use in plant physiology. Radionuclidic impurities remaining in the final solutions were examined by γ-ray spectrometry, and their influences on the above-mentioned measurements are discussed. From the experiments on a barley plant, the speeds of 52Mn2+ ion and 52Fe3+-mugineic-acid complex have been obtained for the first time to be 0.2 cm/min and 1.0 cm/min, respectively.
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Mori S, Levin P. A brief review of potential mechanisms of immune reconstitution inflammatory syndrome in HIV following antiretroviral therapy. Int J STD AIDS 2009; 20:447-52. [PMID: 19541884 DOI: 10.1258/ijsa.2009.008521] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A subset of HIV-infected individuals who receive antiretroviral therapy (ART) develop a paradoxical pathological response that significantly increases morbidity and sometimes mortality. Following the induction of highly active ART, a rapid decline in the viral load results within weeks and coincides with a steep rise in the CD4(+) T-cell counts and immune hyperactivation. Although no mechanistic pathway has been elucidated for the development of immune reconstitution inflammatory syndrome (IRIS), it is thought that change in the nature of the immune response is a predominant factor in the development of reconstitution disease. In this article, we review the current state of knowledge in this field and provide a model for the development of IRIS.
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Affiliation(s)
- S Mori
- The University of Texas Health Sciences Center, Houston, Internal Medicine Program, Houston, Texas, USA.
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Sakai K, Yamada K, Nagakane Y, Mori S, Nakagawa M, Nishimura T. Diffusion tensor imaging may help the determination of time at onset in cerebral ischaemia. J Neurol Neurosurg Psychiatry 2009; 80:986-90. [PMID: 19684233 DOI: 10.1136/jnnp.2008.163584] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND AND AIMS The apparent diffusion coefficient (ADC) and anisotropy (eg, fractional anisotropy (FA)) of ischaemic tissue evolve over time. A reduction in diffusivity (ie, lambda(2) and lambda(3)) is an important marker for characterising hyperacute-stage infarction, as these parameters may reflect axonal membrane status. The study examines whether transverse diffusivity could be useful in assessing white matter infarcts of various ages. METHODS Diffusion tensor imaging data from 44 adult patients (34 men, 10 women, aged 46 to 89 years, mean = 70.3) with acute white matter infarction (1-168 h) of the internal capsule were analysed. Relative eigenvalues were calculated as: (lambda(ipsi)-lambda(contra))/lambda(contra). Lesions were classified based on theoretically expected evolution of diffusivity over time as follows: stage I, FA higher than the contralesional region of interest (ROI); stage II, diffusivity lower than the contralesional side for all eigenvalues; stage III, one of two transverse eigenvalues (lambda(2) or lambda(3)) higher than the contralesional ROI. RESULTS Stage I infarcts (n = 5) were found primarily within 24 h of the onset of symptoms, with one case found on the third day. Stage II infarcts were found most commonly within 24 h (n = 18), and fewer after 24 h. After the first day, the ratio of stage III infarcts increased significantly. Thus, diffusivity-based classification of white matter infarcts seems to show a chronological trend. CONCLUSIONS Diffusion anisotropy may be useful for defining the biological tissue clock of white matter infarctions.
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Affiliation(s)
- K Sakai
- Center for Promotion of Excellence in Higher Education, Kyoto University, Yoshidanihonmatsu-cho, Sakyo-ku, Kyoto City, Kyoto 606-8501, Japan.
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Tsurutani J, Mitsudomi T, Mori S, Okamoto I, Kaname N, Tada H, Negoro S, Yatabe Y, Fukuoka M, Nakagawa K. 9002 A phase III, first-line trial of gefitinib versus cisplatin plusdocetaxel for patients with advanced or recurrent non-small cell lungcancer (NSCLC) harboring activating mutation of the epidermal growthfactor receptor (EGFR) gene: a preliminary results of WJTOG 3405. EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71715-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Mori S, Chang JT, Andrechek ER, Matsumura N, Baba T, Yao G, Kim JW, Gatza M, Murphy S, Nevins JR. Anchorage-independent cell growth signature identifies tumors with metastatic potential. Oncogene 2009; 28:2796-805. [PMID: 19483725 PMCID: PMC3008357 DOI: 10.1038/onc.2009.139] [Citation(s) in RCA: 242] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2008] [Revised: 03/12/2009] [Accepted: 04/08/2009] [Indexed: 12/15/2022]
Abstract
The oncogenic phenotype is complex, resulting from the accumulation of multiple somatic mutations that lead to the deregulation of growth regulatory and cell fate controlling activities and pathways. The ability to dissect this complexity, so as to reveal discrete aspects of the biology underlying the oncogenic phenotype, is critical to understanding the various mechanisms of disease as well as to reveal opportunities for novel therapeutic strategies. Previous work has characterized the process of anchorage-independent growth of cancer cells in vitro as a key aspect of the tumor phenotype, particularly with respect to metastatic potential. Nevertheless, it remains a major challenge to translate these cell biology findings into the context of human tumors. We previously used DNA microarray assays to develop expression signatures, which have the capacity to identify subtle distinctions in biological states and can be used to connect in vitro and in vivo states. Here we describe the development of a signature of anchorage-independent growth, show that the signature exhibits characteristics of deregulated mitochondrial function and then demonstrate that the signature identifies human tumors with the potential for metastasis.
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Affiliation(s)
- S Mori
- Duke Institute for Genome Sciences and Policy, Duke University Medical Center, Durham, NC 27708, USA
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Ceritoglu C, Oishi K, Mori S, Miller M. Multi-contrast Large Deformation Diffeomorphic Metric Mapping and Diffusion Tensor Image Registration. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)71172-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Reading S, McEntee J, Tennis R, Bakker A, Yoritomo N, Pekar J, Mori S, van Zijl P, Margolis RL, Ross CA. Relationship of frontal lobe bold signal and fractional anisotropy in subjects with schizophrenia during a Stroop interference task. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)71655-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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213
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Clark KA, Narr KL, Woods RP, Alger JR, O'Neill J, McCracken JT, Oishi K, Mori S, Toga AW, Levitt JG. Diffusion Tensor Imaging Evaluation of White Matter Integrity in Autism. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)70380-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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214
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Lee N, Mori S, Miller M. Improved Segmentation of Hippocampus Using Landmark based Large Deformation Diffeomorphic Mapping. Neuroimage 2009. [DOI: 10.1016/s1053-8119(09)71735-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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215
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Chen G, Mori S, Sharp G, Lu H, Wolfgang J, Kung J, Hong T. SU-FF-T-576: Effects of Respiration On Proton Dose Distributions and DVHs in Pancreatic Cancer as Assessed by 4D Treatment Planning. Med Phys 2009. [DOI: 10.1118/1.3182074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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216
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Hallman J, Mori S, Sharp G, Hong T, Chen G. SU-FF-J-99: 4D Multi-Organ Motion Analysis in Pancreatic Cancer Patients. Med Phys 2009. [DOI: 10.1118/1.3181391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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217
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Dobashi S, Mori S, Kumagai M. SU-FF-J-127: Four-Dimensional Carbon Ion Dose Assessment in Respiratory-Gated Lung Therapy: Simulation Study in Respiratory Pattern Variation Cases. Med Phys 2009. [DOI: 10.1118/1.3181419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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218
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Giusti M, Moggi P, Mori S. La rifamicina SV nella pratica pediatrica: nuove vie di somministrazione. Chemotherapy 2009. [DOI: 10.1159/000220134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Iwasaki Y, Sawada T, Mori S, Iso Y, Katoh M, Rokkaku K, Kita J, Shimoda M, Kubota K. Estimating glomerular filtration rate preoperatively for patients undergoing hepatectomy. World J Gastroenterol 2009; 15:2252-7. [PMID: 19437566 PMCID: PMC2682241 DOI: 10.3748/wjg.15.2252] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To compare creatinine clearance (Ccr) with estimated glomerular filtration rate (eGFR) in preoperative renal function tests in patients undergoing hepatectomy.
METHODS: The records of 197 patients undergoing hepatectomy between August 2006 and August 2008 were studied, and preoperative Ccr, a three-variable equation for eGFR (eGFR3) and a five-variable equation for eGFR (eGFR5) were calculated. Abnormal values were defined as Ccr < 50 mL/min, eGFR3 and eGFR5 < 60 mL/min per 1.73 m2. The maximum increases in the postoperative serum creatinine (post Cr) level and postoperative rate of increase in the serum Cr level (post Cr rate) were compared.
RESULTS: There were 37 patients (18.8%) with abnormal Ccr, 31 (15.7%) with abnormal eGFR3, and 40 (20.3%) with abnormal eGFR5. Although there were no significant differences in the post Cr rate between patients with normal and abnormal Ccr, eGFR3 and eGFR5 values, the post Cr level was significantly higher in patients with eGFR3 and eGFR5 abnormality than in normal patients (P < 0.0001). Post Cr level tended to be higher in patients with Ccr abnormality (P = 0.0936 and P = 0.0875, respectively).
CONCLUSION: eGFR5 and the simpler eGFR3, rather than Ccr, are recommended as a preoperative renal function test in patients undergoing hepatectomy.
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Saitoh Y, Arita N, Hayakawa T, Onishi T, Koga M, Mori S, Mogami H. Hypogonadism of male prolactinomas: Relation to pulsatile secretion of LH: Hypogonadisms des Mannes mit Prolaktinomen: Beziehungen zur pulsatilen LH-Sekretion. Andrologia 2009. [DOI: 10.1111/j.1439-0272.1990.tb02045.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Shimoda M, Sawada T, Iwasaki Y, Mori S, Kijima H, Okada T, Kubota K. Erythropoietin strongly protects the liver from ischemia-reperfusion injury in a pig model. Hepatogastroenterology 2009; 56:470-475. [PMID: 19579623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
BACKGROUND/AIMS We investigated, for the first time, the protective effect of erythropoietin (EPO) against liver ischemia-reperfusion (I-R) injury in a pig model. METHODOLOGY Partial hepatic ischemia was maintained for 60 min in a pig. Pigs were allocated to 4 groups (n=5 each): (1) Control group with I-R injury (Vehicle); (2) EPO group with I-R injury, given three injections of EPO at 5000 IU/kg (EPO5000x3); (3) EPO group with I-R injury, given a single injection of EPO at 5000 IU/kg (EPO5000x1); and (4) EPO group with I-R injury, given three injections of EPO at 500 IU/kg (EPO500x3). Liver function tests (AST, ALT, LDH), and TUNEL assay were performed. RESULTS Three hours after I-R injury, AST levels in the Vehicle, EPO5000x3, EPO5000x1, and EPO500 x3 groups were 1494.2 +/- 711.3 U/L, 307.3 +/- 127.6 UL, 296.5 +/- 9.2 U/L, and 474.6 +/- 242.0 UL, respectively (one-factor ANOVA, p = 0.020). At 3h the ALT and LDH levels in the Vehicle group were significantly higher than those in the EPO5000x3 and EPO5000x1 groups. Apoptotic indices in the Vehicle, EPO500x3, EPO5000x1, and EPO500x3 groups 3 h after I-R injury were 2.40 +/- 0.93, 1.36 +/- 0.12, 1.11 +/- 0.17, and 1.51 +/- 0.33, respectively. The apoptotic indices of the EPO5000x1 and EPO500x3 groups were significantly lower than that of the Vehicle group. CONCLUSIONS EPO treatment significantly ameliorated liver I-R injury in this pig model. The protective effect was exerted by the inhibition of apoptosis. These results will open the door for the clinical application of EPO in liver surgery.
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Affiliation(s)
- Mitsugi Shimoda
- Second Department of Surgery, Dokkyo University School of Medicine, Kitakobayashi 880, Mibu Shimotsuga 880, Tochigi 321-0293, Japan
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Mielke MM, Kozauer NA, Chan KCG, George M, Toroney J, Zerrate M, Bandeen-Roche K, Wang MC, Vanzijl P, Pekar JJ, Mori S, Lyketsos CG, Albert M. Regionally-specific diffusion tensor imaging in mild cognitive impairment and Alzheimer's disease. Neuroimage 2009; 46:47-55. [PMID: 19457371 DOI: 10.1016/j.neuroimage.2009.01.054] [Citation(s) in RCA: 168] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2008] [Revised: 12/27/2008] [Accepted: 01/22/2009] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND Diffusion tensor imaging (DTI) studies have shown significant cross-sectional differences among normal controls (NC) mild cognitive impairment (MCI) and Alzheimer's disease (AD) patients in several fiber tracts in the brain, but longitudinal assessment is needed. METHODS We studied 75 participants (25 NC, 25 amnestic MCI, and 25 mild AD) at baseline and 3 months later, with both imaging and clinical evaluations. Fractional anisotropy (FA) was analyzed in regions of interest (ROIs) in: (1) fornix, (2) cingulum bundle, (3) splenium, and (4) cerebral peduncles. Clinical data included assessments of clinical severity and cognitive function. Cross-sectional and longitudinal differences in FA, within each ROI, were analyzed with generalized estimating equations (GEE). RESULTS Cross-sectionally, AD patients had lower FA than NC (p<0.05) at baseline and 3 months in the fornix and anterior portion of the cingulum bundle. Compared to MCI, AD cases had lower FA (p<0.05) in these regions and the splenium at 0 and 3 months. Both the fornix and anterior cingulum correlated across all clinical cognitive scores; lower FA in these ROIs corresponded to worse performance. Over the course of 3 months, when the subjects were clinically stable, the ROIs were also largely stable. CONCLUSIONS Using DTI, findings indicate FA is decreased in specific fiber tracts among groups of subjects that vary along the spectrum from normal to AD, and that this measure is stable over short periods of time. The fornix is a predominant outflow tract of the hippocampus and may be an important indicator of AD progression.
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Affiliation(s)
- M M Mielke
- Department of Psychiatry, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA.
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Mori S, Sawada T, Shimoda M, Kato M, Iwasaki Y, Iso Y, Rokkaku K, Kita J, Kubota K. QS32. Erythropoietin, an Extrahematopoietic Cytokine: Basic and Clinical Research. J Surg Res 2009. [DOI: 10.1016/j.jss.2008.11.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fuji S, Kim SW, Mori S, Kamiya S, Yoshimura K, Yokoyama H, Kurosawa S, Saito B, Takahashi T, Kuwahara S, Heike Y, Tanosaki R, Takaue Y, Fukuda T. Intensive glucose control after allogeneic hematopoietic stem cell transplantation: a retrospective matched-cohort study. Bone Marrow Transplant 2009; 44:105-11. [PMID: 19151794 DOI: 10.1038/bmt.2008.431] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Some studies have shown that intensive glucose control (IGC) improves outcome in the intensive care unit setting. However, it is the benefit of IGC in hematopoietic SCT (HSCT) that is not well defined. Between June 2006 and May 2007, IGC was maintained prospectively after allogeneic HSCT and clinical outcomes were compared with a cohort matched for conditioning regimen, source of stem cells, age and relation to donor. A stratified Cox regression model was used. There were no significant differences in baseline clinical characteristics. The median age was 43.5 years in both groups. The primary diagnosis was a hematologic malignancy. Patients in the IGC group had a lower glucose level (least-square mean, 116.4 vs 146.8 mg per 100 ml, P<0.001) compared to the standard glucose control group. The incidences of documented infections and bacteremia were significantly lower in the IGC group (14 vs 46%, P=0.004, 9 vs 39%, P=0.002, respectively). IGC tended to reduce the incidence of renal dysfunction (19 vs 37%, P=0.36) and the elevation of C-reactive protein (18 vs 38%, P=0.13). This study suggests that IGC has may have a beneficial effect after HSCT. IGC should be evaluated further in a large prospective, randomized study.
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Affiliation(s)
- S Fuji
- Department of Hematology and Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan
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Abstract
The patient was a 33-year-old man. He had severe upper abdominal pain after a rugby game and he was diagnosed with traumatic pancreatic injury. Since intra-abdominal bleeding became severe, laparotomy was performed for haemostasis. On operation, venous bleeding from the upper edge of the head of the pancreas was found and the haemorrhage was stopped. The whole pancreas had severe inflammation with oedematous tissue spreading into the meso-colon and meso-jejunum. On the same day, the patient was transferred to our hospital for further treatment of acute pancreatitis. On admission, the amylase level in the drainage fluid was high and, thus, we started continuous arterial infusion treatment via the superior mesenteric artery, in addition to subcutaneous administration of octreotide. Enteral nutrition was started on postoperative day 6, oral intake was started on postoperative day 15. The patient recovered successfully and was discharged on postoperative day 30.
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Affiliation(s)
- Mitsugi Shimoda
- Dokkyo Medical University, Second Department of Surgery, 880 Kitakobayashi, Mibu, 321-0293, Japan
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Mori S, Uchino H, Dokiya Y, Yoshimura E, Toda S, Naruse Y. Determination of Cl, NH4‐N and metals in the surface water of the Isumi river, Japan‐environmental effects caused by iodine factories. ACTA ACUST UNITED AC 2008. [DOI: 10.1080/10934527909374893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- S. Mori
- a Dept. of Agric. Cham., Fac. of Agric. , The Univ. of Tokyo , Bunkyo‐ku, Tokyo, 113, Japan
| | - H. Uchino
- a Dept. of Agric. Cham., Fac. of Agric. , The Univ. of Tokyo , Bunkyo‐ku, Tokyo, 113, Japan
| | - Y. Dokiya
- a Dept. of Agric. Cham., Fac. of Agric. , The Univ. of Tokyo , Bunkyo‐ku, Tokyo, 113, Japan
| | - E. Yoshimura
- a Dept. of Agric. Cham., Fac. of Agric. , The Univ. of Tokyo , Bunkyo‐ku, Tokyo, 113, Japan
| | - S. Toda
- a Dept. of Agric. Cham., Fac. of Agric. , The Univ. of Tokyo , Bunkyo‐ku, Tokyo, 113, Japan
| | - Y. Naruse
- b Chiba Experimental Plantation , The Univ. of Tokyo , Awatsu‐kominato, Miwa‐gun, Chiba, Japan
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Mori S, Sharp G, Kumagai M, Hara R, Asakura H, Yamada S, Kishimoto R, Kato H, Kandatsu S. Four-dimensional Heavy Charged Particle Beam Radiotherapy in Pancreatic Cancer. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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228
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Saito M, Mori S, Mashiba T, Komatsubara S, Marumo K. Collagen maturity, glycation induced-pentosidine, and mineralization are increased following 3-year treatment with incadronate in dogs. Osteoporos Int 2008; 19:1343-54. [PMID: 18373056 DOI: 10.1007/s00198-008-0585-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2007] [Accepted: 12/12/2007] [Indexed: 12/16/2022]
Abstract
UNLABELLED Collagen cross-linking is a determinant of bone quality. A three-year treatment of bisphosphonate-incadronate disodium-in beagles increased degree of mineralization, collagen maturity, and pentosidine, a compound with advanced glycation end products. The treatment had no effect on the total amount of enzymatic cross-link formation. INTRODUCTION Collagen cross-linking is a determinant of bone quality. Recently, we reported that long-term treatment with bisphosphonate increased microdamage accumulation. The aim of this study was to clarify the effect of a three-year treatment with bisphosphonate on degree of mineralization and immature and mature enzymatic cross-links and non-enzymatic collagen cross-link, pentosidine, in cortical bone in the same dogs. METHODS Twenty-nine 1-year-old beagles (15 males, 14 females) were divided into three groups that daily were given vehicle or incadronate at doses of 0.3 or 0.6 mg/kg/day orally for three years. A cortex of a rib was fractionated into low- and high-density portions. The contents of calcium, phosphorus, enzymatic immature and mature cross-links, and the non-enzymatic glycation product pentosidine were determined in each fraction. RESULTS Calcium, phosphorus, and pentosidine contents and the ratio of mature to immature cross-links increased significantly with incadronate in a dose-dependent manner, but the total amount of enzymatic cross-links was unchanged. The pentosidine content correlated inversely with cortical activation frequency (p < 0.01). CONCLUSION Long-term suppression of bone remodeling by bisphosphonate increases degree of mineralization, collagen maturity, and non-enzymatic cross-linking.
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Affiliation(s)
- M Saito
- Department of Orthopaedic Surgery, Jikei University School of Medicine, 3-25-8, Nishi-Shinbashi, Minato-ku, Tokyo, 105-8461, Japan.
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Yamasaki S, Heike Y, Mori S, Fukuda T, Maruyama D, Kato R, Usui E, Koido K, Kim S, Tanosaki R, Tobinai K, Teshima T, Takaue Y. Infectious complications in chronic graft-versus-host disease: a retrospective study of 145 recipients of allogeneic hematopoietic stem cell transplantation with reduced- and conventional-intensity conditioning regimens. Transpl Infect Dis 2008; 10:252-9. [DOI: 10.1111/j.1399-3062.2007.00291.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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230
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Mori S, Sawada T, Okada T, Kubota K. Anti-proliferative effect of interferon-gamma is enhanced by iron chelation in colon cancer cell lines in vitro. Hepatogastroenterology 2008; 55:1274-9. [PMID: 18795672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND/AIMS The receptor of interferon-gamma (IFN-gammaR) consists of IFN-gammaR1 and R2. Resistance to the anti-proliferative effect of IFN-gamma is due to downregulation of IFN-gammaR2. The aim of this study was to investigate whether iron chelation could upregulate IFN-gammaR2 and enhance the anti-proliferative effect of IFN-gamma in colon cancer cell lines. METHODOLOGY The colon cancer cell lines, SW480, COLO, and WiDr were treated with the iron chelating agent DFO, and the expression of IFN-gammaR1 and IFN-gammaR2 was evaluated by FACS. The anti-proliferative effect of IFN-gamma was investigated by MTT assay, and the proapoptotic effect was investigated by FACS with Annexin-V. RESULTS FACS demonstrated that DFO increased the expression of IFN-gammaR2, whereas the effect on IFN-gammaR1 expression was less marked. MTT assay showed that cell growth was inhibited by DFO. Addition of DFO and IFN-gamma inhibited further, but inhibition was not observed with IFN-gamma alone. Apoptotic cells were increased by DFO, and further increased with DFO + IFN-gamma together. CONCLUSIONS Expression of IFN-gammaR2 is restored by iron chelation, and the increased expression of IFN-gammaR2 enhances the anti-proliferative effect of IFN-gamma through induction of apoptosis in colon cancer cells.
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Affiliation(s)
- Shozo Mori
- Second Department of Surgery, Dokkyo University School of Medicine, Kitakobayashi 880, Mibu, Shimotsuga, Tochigi 321-0293, Japan
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Ogata Y, Akagi Y, Sasatomi T, Mori S, Ishibashi N, Shiouzu K, Tanaka T, Tsuji Y, Sueyoshi S, Isobe M. Phase I/II study of metronomic chemotherapy using S-1 and irinotecan in patients with advanced colorectal cancer (KSCOG CR-01). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.2535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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232
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Ikeda N, Matsuo Y, Mori S, Yoshii K. Electronic ferroelectricity from charge ordering in RFe(2)O(4). IEEE Trans Ultrason Ferroelectr Freq Control 2008; 55:1043-1045. [PMID: 18519209 DOI: 10.1109/tuffc.2008.753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We report our recent discovery of novel ferroelectricity arising from the polar ordering of Fe(3)+ and Fe(2)+ in a mixed valence triangular lattice oxide LuFe(2)O(4), where the electric polarization is not a result of ionic displacement. The polar ordering of Fe(3)+ and Fe(2)+ was confirmed with a resonant x-ray scattering study in SPring-8. The origin of such ordering is the competitive interaction between Fe(3)+ and Fe(2)+ in the triangular lattice, i.e., the charge frustration. The polar superlattice of Fe(3)+ and Fe(2)+ develops below 350 K, where the electric polarization appears. The ferroelectricity arising from the polar charge ordering or the polar electron distribution may have great potential for the future application of ferroelectrics.
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Affiliation(s)
- N Ikeda
- Department of Physics, Okayama University, Okayama, 700-8530, Japan.
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233
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Mori S, Tagaya N, Hamada K, Nakagawa A, Sawada T, Honma K, Kubota K. Undifferentiated Carcinoma of the Esophagus with Rapid Growth of Lymph Node. A Case Report and Review of the Literature. Tumori 2008; 94:411-5. [DOI: 10.1177/030089160809400319] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We present a case of undifferentiated carcinoma of the esophagus (UCE) treated with chemotherapy consisting of 5-fluorouracil plus nedaplatin and radiotherapy. The patient developed rapid growth of lymph nodes and died of massive hematemesis 2 months after the diagnosis. UCE is rare but highly malignant. Since there is no established treatment for UCE, its clinical outcome is invariably poor. We also reviewed the effectiveness of chemotherapy against UCE.
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Affiliation(s)
- Shozo Mori
- Second Department of Surgery, Dokkyo University School of Medicine, Tochigi, Japan
| | - Nobumi Tagaya
- Second Department of Surgery, Dokkyo University School of Medicine, Tochigi, Japan
| | - Kiyoshige Hamada
- Second Department of Surgery, Dokkyo University School of Medicine, Tochigi, Japan
| | - Aya Nakagawa
- Second Department of Surgery, Dokkyo University School of Medicine, Tochigi, Japan
| | - Tokihiko Sawada
- Second Department of Surgery, Dokkyo University School of Medicine, Tochigi, Japan
| | - Koichi Honma
- Anatomic and Diagnostic Pathology, Dokkyo University School of Medicine, Tochigi, Japan
| | - Keiichi Kubota
- Second Department of Surgery, Dokkyo University School of Medicine, Tochigi, Japan
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Mori S, Sawada T, Okada T, Kubota K. Erythropoietin and its derivative protect the intestine from severe ischemia/reperfusion injury in the rat. Surgery 2008; 143:556-65. [PMID: 18374054 DOI: 10.1016/j.surg.2007.12.013] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2007] [Accepted: 12/20/2007] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To investigate the protective effect of erythropoietin (EPO) and its nonhematopoietic derivative (asialoEPO) against intestinal ischemia/reperfusion (I/R) injury in a rat model. METHODS The superior mesenteric artery of Wistar rats was clamped for 60 minutes and then released. The rats were divided into 4 groups (n = 15 in each group): sham operation (Sham), vehicle treatment (Vehicle), EPO treatment (EPO), and asialoEPO treatment (AsialoEPO). EPO and asialoEPO were administered subcutaneously at 1000 units/kg for 10 minutes before clamping, 30 minutes after the start of clamping, and just before declamping. This treatment was followed by determination of 72-hour survival rates, serum TNF-alpha and IL-6 levels, histologic evaluation of the small intestine, quantification of the number of apoptotic cells, and analysis of the antiapoptotic molecules Bcl-xL and XIAP by Western blotting. RESULTS The survival rates at 72 hours after I/R injury in the Sham, Vehicle, EPO, and AsialoEPO groups were 100%, 33%, 75%, and 83%, respectively (P < .05). Blood TNF-alpha and IL-6 were significantly more suppressed in the EPO and AsialoEPO groups than in the Vehicle group at 6 hours after I/R injury. Histologically, injury to villi in the EPO and AsialoEPO groups was significantly less than in the Vehicle group. The number of apoptotic cells in the EPO and AsialoEPO groups was significantly less than in the Vehicle group. Western blotting revealed that EPO and asialoEPO constitutively increased the expression of Bcl-xL. CONCLUSIONS EPO and asialoEPO exert a strong protective effect against intestinal I/R injury, possibly by inhibiting release of TNF-alpha and IL-6 and decreasing apoptosis.
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Affiliation(s)
- Shozo Mori
- Second Department of Surgery, Dokkyo University School of Medicine, Mibu, Tochigi, Japan
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Abstract
The angiogenetic effect of asialoerythropoietin (asialoEPO) was investigated in a murine (BALB/c) ischemic hind limb model created by ligating the right femoral artery, and severe ischemia was created by ligating two points on the femoral artery. The mice were allocated to six groups: 1, Control (n = 15), no treatment; 2, BMC (n = 15), Injected with 1 x 10(6) bone marrow cells (BMC); 3, EPO (n = 15), EPO(500 U/kg for 2 weeks); 4, BMC + EPO (n = 15), BMC + erythropoietin (EPO); 5, asialoEPO (n = 15), asialoEPO (500 U/kg for 2 weeks); 6, BMC + asialoEPO (n = 15); BMC + asialoEPO. Blood flow in the ischemic and normal limbs was measured using a Doppler flowmeter on days 7 and 14. Vessel density was evaluated by immunohistochemical staining for Von Willebrand Factor (vWF). In the severe ischemia model, limb survival was investigated. Blood flow was significantly higher in the BMC + asialoEPO group than in the Control, BMC, EPO, BMC + EPO, or asialoEPO group on day 7 (p = .007) and on day 14 (p = .002). Vascular density was also significantly higher in the BMC + asialoEPO (0.067 +/- 0.022) group than in the Control (0.026 +/- 0.007), BMC (0.027 +/- 0.012) EPO (0.029 +/- 0.002), BMC + EPO (0.048 +/- 0.015), and asialoEPO (0.031 +/- 0.001) groups (p = .006). Finally, limb survival at day 14 in the severe ischemia model was significantly better in the BMC + asialoEPO group (83.3%) than in the Control (40.0%), BMC (52.9%), EPO (44.4%), BMC + EPO (64.7%), or asialoEPO (36.4%) group (p = .02). This provides the conclusions that asialoEPO promotes angiogenesis by BMC and that its action is significantly more potent than that of EPO.
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Affiliation(s)
- Shozo Mori
- Second Department of Surgery, Dokkyo University School of Medicine, Shimotsuga, Tochigi, Japan
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Pletnikov MV, Ayhan Y, Nikolskaia O, Xu Y, Ovanesov MV, Huang H, Mori S, Moran TH, Ross CA. Inducible expression of mutant human DISC1 in mice is associated with brain and behavioral abnormalities reminiscent of schizophrenia. Mol Psychiatry 2008; 13:173-86, 115. [PMID: 17848917 DOI: 10.1038/sj.mp.4002079] [Citation(s) in RCA: 288] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A strong candidate gene for schizophrenia and major mental disorders, disrupted-in-schizophrenia 1 (DISC1) was first described in a large Scottish family in which a balanced chromosomal translocation segregates with schizophrenia and other psychiatric illnesses. The translocation mutation may result in loss of DISC1 function via haploinsufficiency or dominant-negative effects of a predicted mutant DISC1 truncated protein product. DISC1 has been implicated in neurodevelopment, including maturation of the cerebral cortex. To evaluate the neuronal and behavioral effects of mutant DISC1, the Tet-off system under the regulation of the CAMKII promoter was used to generate transgenic mice with inducible expression of mutant human DISC1 (hDISC1) limited to forebrain regions, including cerebral cortex, hippocampus and striatum. Expression of mutant hDISC1 was not associated with gross neurodevelopmental abnormalities, but led to a mild enlargement of the lateral ventricles and attenuation of neurite outgrowth in primary cortical neurons. These morphological changes were associated with decreased protein levels of endogenous mouse DISC1, LIS1 and SNAP-25. Compared to their sex-matched littermate controls, mutant hDISC1 transgenic male mice exhibited spontaneous hyperactivity in the open field and alterations in social interaction, and transgenic female mice showed deficient spatial memory. The results show that the neuronal and behavioral effects of mutant hDISC1 are consistent with a dominant-negative mechanism, and are similar to some features of schizophrenia. The present mouse model may facilitate the study of aspects of the pathogenesis of schizophrenia.
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Affiliation(s)
- M V Pletnikov
- Division of Neurobiology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
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Pletnikov MV, Ayhan Y, Xu Y, Nikolskaia O, Ovanesov M, Huang H, Mori S, Moran TH, Ross CA. Enlargement of the lateral ventricles in mutant DISC1 transgenic mice. Mol Psychiatry 2008; 13:115. [PMID: 18202691 DOI: 10.1038/sj.mp.4002144] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M V Pletnikov
- Division of Neurobiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Horikawa E, Morizono R, Nakamura M, Oya Y, Tokojima E, Motonaga K, Horie J, Mori S, Kimuro K, Igarashi Y. P1.072 The in.uences of cognitive task on staircase performance in young adults. Parkinsonism Relat Disord 2008. [DOI: 10.1016/s1353-8020(08)70169-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mori S, Sawada T, Okada T, Ohsawa T, Adachi M, Keiichi K. New anti-proliferative agent, MK615, from Japanese apricot “ Prunus mume” induces striking autophagy in colon cancer cells in vitro. World J Gastroenterol 2007; 13:6512-7. [PMID: 18161921 PMCID: PMC4611290 DOI: 10.3748/wjg.v13.i48.6512] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the anti-neoplastic effects of MK615, an extract from the Japanese apricot (Prunus mume), against colon cancer cells.
METHODS: Three colon cancer cell lines, SW480, COLO, and WiDr, were cultured with MK615. Growth inhibition was evaluated by cell proliferation assay and killing activity was determined by lactate dehydrogenase assay. Induction of apoptosis was evaluated by annexin V flow cytometry. Morphological changes were studied by light and electron microscopy, and immunofluorescence staining with Atg8.
RESULTS: MK615 inhibited growth and lysed SW480, COLO and WiDr cells in a dose-dependent manner. Annexin V flow cytometry showed that MK615 induced apoptosis after 6 h incubation, at which point the occurrence of apoptotic cells was 68.0%, 65.7% and 64.7% for SW480, COLO, and WiDr cells, respectively. Light and electron microscopy, and immunofluorescence staining with Atg8 revealed that MK615 induced massive cytoplasmic vacuoles (autophagosomes) in all three cell lines.
CONCLUSION: MK615 has an anti-neoplastic effect against colon cancer cells. The effect may be exerted by induction of apoptosis and autophagy.
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Mori S, Takeuchi T, Enomoto Y, Kondo K, Sato K, Ono F, Sata T, Kanda T. Tissue distribution of cynomolgus adeno-associated viruses AAV10, AAV11, and AAVcy.7 in naturally infected monkeys. Arch Virol 2007; 153:375-80. [PMID: 18066635 DOI: 10.1007/s00705-007-1097-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2007] [Accepted: 10/29/2007] [Indexed: 12/20/2022]
Abstract
Adeno-associated virus (AAV) is used in gene-therapy studies, but its tissue distribution is unknown in natural infection. We examined cynomolgus AAVs (previously isolated AAV10 and AAV11 and novel AAVcy.7) for their tissue distribution in 14 cynomolgi by type-specific PCR. We found AAV10, AAV11, and AAVcy.7 in 6, 10, and 14 monkeys, respectively, and two or three types in 11 monkeys, showing that these AAVs are widespread in the monkeys. We detected AAV at a higher level mainly in the lymphatic tissues and ileum, which suggests that AAV may invade the host through Peyer's patches in the ileum and infect immune cells.
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Affiliation(s)
- S Mori
- Center for Pathogen Genomics, National Institute of Infectious Diseases, Toyama, Shinjuku-ku, Tokyo, Japan
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241
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Ogata Y, Mori S, Ishibashi N, Akagi Y, Ushijima M, Murakami H, Fukushima T, Shirouzu K. Metronomic chemotherapy using weekly low-dosage CPT-11 and UFT as postoperative adjuvant therapy in colorectal cancer at high risk to recurrence. J Exp Clin Cancer Res 2007; 26:475-482. [PMID: 18365541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This study was designed to evaluate the antitumor efficacy and feasibility of postoperative adjuvant metronomic chemotherapy using weekly low-dosage CPT-11 and UFT in colorectal cancer at high risk to recurrence. A total of 49 patients (24 stage IIIb and 25 distant metastasis) who underwent a R0 operation were enrolled in this prospective study. Forty mg/m2 of CPT-11 were administered on day 1, day 8, and on day 15 in 28-day cycles. A dosage of 335 mg/m2/day of UFT was given perorally on daily schedule. Cycles were repeated for 6 months, and were followed by UFT alone for further 6 months. One or more adverse effects were seen in 43 of the 49 patients. However, most of these effects were mild at grade 1 or 2: with only nausea in 3 patients, vomiting in 2, leucopenia in 2 and neutropenia in 2 at grade 3. The overall survival rates were favorable both in the stage IIIb group (5-year: 73%) and in the distant metastases group (5-year: 62%). Postoperative adjuvant metronomic chemotherapy using weekly low-dosage CPT-11 and UFT might be safe and feasible and prolong survival time in colorectal cancer at high risk to recurrence.
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Affiliation(s)
- Y Ogata
- Department of Surgery, Kurume University School of Medicine, Kurume, Fukuoka, Japan.
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Yukawa E., Mori S, Ueda K, Nakada Y. Population pharmacokinetic investigation of low-dose methotrexate in rheumatoid arthritics Japanese patients. J Clin Pharm Ther 2007; 32:573-8. [DOI: 10.1111/j.1365-2710.2007.00859.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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243
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Nagae LM, Hoon AH, Stashinko E, Lin D, Zhang W, Levey E, Wakana S, Jiang H, Leite CC, Lucato LT, van Zijl PCM, Johnston MV, Mori S. Diffusion tensor imaging in children with periventricular leukomalacia: variability of injuries to white matter tracts. AJNR Am J Neuroradiol 2007; 28:1213-22. [PMID: 17698519 PMCID: PMC7977654 DOI: 10.3174/ajnr.a0534] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Conventional MR imaging shows evidence of brain injury and/or maldevelopment in 70%-90% of children with cerebral palsy (CP), though its capability to identify specific white matter tract injury is limited. The great variability of white matter lesions in CP already demonstrated by postmortem studies is thought to be one of the reasons why response to treatment is so variable. Our hypothesis is that diffusion tensor imaging (DTI) is a suitable technique to provide in vivo characterization of specific white matter tract lesions in children with CP associated with periventricular leukomalacia (PVL). MATERIALS AND METHODS In this study, 24 children with CP associated with PVL and 35 healthy controls were evaluated with DTI. Criteria for identification of 26 white matter tracts on the basis of 2D DTI color-coded maps were established, and a qualitative scoring system, based on visual inspection of the tracts in comparison with age-matched controls, was used to grade the severity of abnormalities. An ordinal grading system (0=normal, 1=abnormal, 2=severely abnormal or absent) was used to score each white matter tract. RESULTS There was marked variability in white matter injury pattern in patients with PVL, with the most frequent injury to the retrolenticular part of the internal capsule, posterior thalamic radiation, superior corona radiata, and commissural fibers. CONCLUSION DTI is a suitable technique for in vivo assessment of specific white matter lesions in patients with PVL and, thus, a potentially valuable diagnostic tool. The tract-specific evaluation revealed a family of tracts that are highly susceptible in PVL, important information that can potentially be used to tailor treatment options in the future.
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Affiliation(s)
- L M Nagae
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, MD, USAand Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, Brazil.
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Abstract
AIM: To investigate the safety and outcome of gastrectomy for patients with gastric cancer and non-uremic renal failure (NURF).
METHODS: One hundred forty-seven patients who underwent gastrectomy for carcinoma were retrospectively divided into two groups: a group with Ccr values of ≥ 50 mL/min (Group 1; n = 110), and one with Ccr values of ≥ 20 to < 50 mL/min (Group 2; n = 37). Preoperative patient characteristics, intraoperative parameters (including operation time and blood loss), and postoperative management and complications were evaluated.
RESULTS: There were no statistically significant differences between the two groups in operation time (297.9 min vs 272.6 min, P = 0.137) or blood loss (435 mL vs 428 mL, P = 0.078). The differences in postoperative complications and hospital stay between the groups were not statistically significant. None of the patients in Group 2 required dialysis therapy, and no patients died due to gastrectomy or gastrectomy-related causes. The overall 4-year survival rates in Groups 1 and 2 were 86.6% and 81.8%, respectively (P = 0.48), and the corresponding 4-year disease-free survival rates for stageI, II, and III patients were 88.7% and 83.5%, respectively (P = 0.65).
CONCLUSION: Gastrectomy can be performed as safely in patients with NURF similar to patients with normal renal function.
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Affiliation(s)
- Shozo Mori
- Second Department of Surgery, Dokkyo University School of Medicine, Kitakobayashi 880, Mibu, Shimotsuga, Tochigi, Japan
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Shiroki R, Mori S, Miyakawa S, Ichino M, Hirano M, Kusaka M, Hayakawa K, Ishikawa K, Hoshinaga K. MP-16.20: Thalidomide in combination with interleukin-2 for patients with metastatic renal cell carcinoma refractory to prior IL-2 and alpha-interferon treatment. Urology 2007. [DOI: 10.1016/j.urology.2007.06.480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shiroki R, Mori S, Miyakawa S, Kusaka M, Hayakawa K, Ishikawa K, Hoshinaga K. MP-18.20: Comparison of prospective and longitudinal assessment of health- and disease-related QOL between radical perineal and retropubic prostatectomy in men with localized prostate carcinoma. Urology 2007. [DOI: 10.1016/j.urology.2007.06.526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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247
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Uemura A, Mori S, Sugahara K, Akamatsu N, Tsuruda K, Tsukasaki K, Hirakata Y, Atogami S, Hasegawa H, Yamada Y, Kamihira S. Rapid and high-resolution detection of IgH gene rearrangements using PCR and melting curve analysis. Int J Lab Hematol 2007; 29:200-7. [PMID: 17474898 DOI: 10.1111/j.1751-553x.2006.00832.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The analytical methods of Southern blot hybridization (SBH) and the polymerase chain reaction (PCR) for complementarity determining region-3 (CDR3) are fundamental for detecting IgH gene rearrangement. However, there are problems stemming from the characteristics of both methods; especially, the long turn around time (TAT) because of the complex process in the SBH, and the low analytical sensitivity for amplicons in the PCR. Thus, to improve the PCR procedure, we investigated the application of detecting the clonal amplicons based on the different melting Temperature (T(m)) in internal melting domains corresponding to the CDR3 hypervariable region. Our new protocol is based on the combination of a LightCycler Technology with high-speed amplification, and Idaho-Technology with rapid and high-resolution melting curve analysis (MCA), designated PCR-MCA. This method can provide the results within 3 h with an analytical sensitivity of 10(-3). The diagnostic sensitivity and specificity relative to the results documented with the SBH analysis were 89.2% and 100%, respectively. This indicates that the new protocol of PCR-MCA is acceptable for clinical testing; especially, PCR-MCA is relevant in terms of the rapid and sensitive detection of IgH clonality within amplicons.
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Affiliation(s)
- A Uemura
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki University Hospital, Nagasaki City, Nagasaki, Japan
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Kamata H, Mitani S, Fujiwara M, Aoki N, Okada S, Mori S. Mutation of the p53 tumour suppressor gene and overexpression of its protein in 62 Japanese non-Hodgkin's lymphomas. Clin Exp Med 2007; 7:39-46. [PMID: 17609875 DOI: 10.1007/s10238-007-0124-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2006] [Accepted: 01/29/2007] [Indexed: 01/10/2023]
Abstract
To clarify whether p53 mutation could be involved in the pathogenesis of various subtypes of lymphoma, we investigated 62 Japanese cases of non-Hodgkin's lymphomas (NHLs) for p53 gene mutations and their relationship with the expression of p53 protein. Mutations in exons 5-9 of the p53 gene were screened for using the non-isotopic RNase cleavage assay (NIRCA) and confirmed by direct sequencing, followed by immunohistochemical analysis for p53 protein. Missense and/or nonsense mutations of p53 were detected in 3 (10.7%) of 28 diffuse large B-cell lymphomas (DLBLs) and 2 (15.4%) of 13 T-cell NHLs (15.4%). A single missense mutation at codon 157 (Val to Phe) in exon 5 and at codon 273 (Arg to Pro) in exon 8 was found respectively in 2 DLBLs and in one peripheral T-cell lymphoma (unspecified). In these 3 cases harbouring a missense mutation, overexpression of p53 protein was observed in more than 80% of tumour cells. Double transversion mutations comprising of a missense mutation at codon 167 (Gln to His) in exon 5 and a nonsense mutation at codon 183 (Ser to stop codon) in exon 5 were detected in one DLBL that had apparently transformed from follicular lymphoma and in one advanced adult T-cell lymphoma (ATL). In these two cases harbouring p53 nonsense mutation, no cells positive for p53 protein immunostaining were detected, as well as lymphomas without p53 mutation.
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Affiliation(s)
- H Kamata
- Laboratory of Veterinary Microbiology, College of Bioresource Sciences Nihon University, 1866 Kameino, Fujisawa, Kanagawa 252-8510, Japan.
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Anguiano A, Mori S, Chang J, Vlahovic V, Kelley MJ, Ginsburg G, Dressman H, Nevins JR, Potti A. A genomic signature of chemotherapeutic multidrug resistance provides a rational approach to identify patients for targeted therapy in advanced solid tumors. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.10613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
10613 Background: Multidrug resistance (MDR), the process by which cells resist many structurally and functionally unrelated drugs, remains a major challenge for cancer treatment. Strategies to reliably predict MDR will revolutionize cancer therapy. Methods: We made use of in vitro drug sensitivity data on 47 FDA approved chemotherapeutic agents from the NCI-60 database coupled with Affymetrix microarray data, to develop a gene expression signature of chemotherapeutic MDR, using a 'metagene’ approach to gene expression analysis (Potti et al, Nature Medicine, 2006). The capacity of the MDR signature to predict in vitro and in vivo resistance was evaluated in multiple independent cell line and patient cohorts. Results: A gene expression signature of chemotherapeutic MDR developed from cancer cell lines using a novel ‘metagene’ approach can accurately predict patients resistant to standard chemotherapeutic agents, including multi-drug regimens. This includes cohorts of patients with early stage breast cancer (n = 171; accuracy: 75.5%, sensitivity: 49.3%, specificity: 92%), patients who received neoadjuvant chemotherapy (n = 51; accuracy: 78.5%, sensitivity: 73.7%, specificity: 92.3%), and ovarian cancer (n = 105; accuracy: 83.8%, sensitivity: 71.8%, specificity: 93.7%). We further show that MDR signature expression is an independent prognostic factor in early stage breast cancer (p = 0.02, odds ratio: 3.49) and a large cohort of non-small cell lung cancer (p = 0.03, odds ratio: 5.70), in a multivariate analysis. Finally, to identify a rational therapeutic strategy in patients with the MDR phenotype, we have integrated the prediction of MDR with profiles of oncogenic pathway deregulation (Bild A, Nature, 2006) and show that targeting the Src pathway using a Src specific inhibitor (SU6656) circumvents MDR in the in vitro setting. Conclusions: The development of a gene expression signature of MDR, that can predict resistance to commonly used cytotoxic chemotherapies, provides a rational approach to developmental therapeutics, by identifying novel 'customized’ candidate drugs (e.g. targeting Src) for further clinical development. No significant financial relationships to disclose.
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Affiliation(s)
| | - S. Mori
- Duke University Medical Center, Durham, NC
| | - J. Chang
- Duke University Medical Center, Durham, NC
| | | | | | | | | | | | - A. Potti
- Duke University Medical Center, Durham, NC
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Folkert M, Mori S, Chen G. MO-D-AUD-02: Liquid Scintillation-Based Proton Residual Range Measurement Using a Dynamic Biological Lung Phantom. Med Phys 2007. [DOI: 10.1118/1.2761234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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