76
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Ichikawa M, Akira S, Iwasaki N, Oouchi N, Mine K, Kurose K, Takeshita T. The Assessment of Quality-of-Life after Total Laparoscopic Sacrocolpopexy with Two Separate Meshes. J Minim Invasive Gynecol 2010. [DOI: 10.1016/j.jmig.2010.08.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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77
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Ichikawa M, Masakura Y. Reduction of the flash-lag effect in active observation depends upon the learning of directional relationship between hand and stimulus movemenets. J Vis 2010. [DOI: 10.1167/10.7.1036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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78
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Nakahara S, Ichikawa M. Care giver supervision and child injuries: consideration of different contexts when translating knowledge into practice. Inj Prev 2010; 16:293-5. [DOI: 10.1136/ip.2009.024802] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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79
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Ichikawa M. Change blindness for relatively moving target as a result of a single mudsplash. J Vis 2010. [DOI: 10.1167/8.6.466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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80
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Ichikawa M. Change blindness as a result of a single mudsplash. J Vis 2010. [DOI: 10.1167/7.9.650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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81
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Ichikawa M, Masakura Y. Dependency of the manner to integrate depth cues on perceptual tasks. J Vis 2010. [DOI: 10.1167/6.6.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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82
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Ichikawa M. Perceived time order for the stimuli presented at different depth is event-dependent. J Vis 2010. [DOI: 10.1167/3.9.844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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83
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Ichikawa M. Visual simultaneity is affected by stimulus depth. J Vis 2010. [DOI: 10.1167/2.7.227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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84
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Shimabe M, Goyama S, Watanabe-Okochi N, Yoshimi A, Ichikawa M, Imai Y, Kurokawa M. Pbx1 is a downstream target of Evi-1 in hematopoietic stem/progenitors and leukemic cells. Oncogene 2009; 28:4364-74. [PMID: 19767769 DOI: 10.1038/onc.2009.288] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2009] [Revised: 07/27/2009] [Accepted: 08/17/2009] [Indexed: 12/19/2022]
Abstract
Ecotropic viral integration site-1 (Evi-1) is a nuclear transcription factor, which is essential for the proliferation/maintenance of hematopoietic stem cells (HSCs). Aberrant expression of Evi-1 has been frequently found in myeloid leukemia, and is associated with a poor patient survival. Recently, we reported candidate target genes of Evi-1 shared in HSCs and leukemic cells using gene expression profiling analysis. In this study, we identified Pbx1, a proto-oncogene in hematopoietic malignancy, as a target gene of Evi-1. Overexpression of Evi-1 increased Pbx1 expression in hematopoietic stem/progenitor cells. An analysis of the Pbx1 promoter region revealed that Evi-1 upregulates Pbx1 transcription. Furthermore, reduction of Pbx1 levels through RNAi-mediated knockdown significantly inhibited Evi-1-induced transformation. In contrast, knockdown of Pbx1 did not impair bone marrow transformation by E2A/HLF or AML1/ETO, suggesting that Pbx1 is specifically required for the maintenance of bone marrow transformation mediated by Evi-1. These results indicate that Pbx1 is a target gene of Evi-1 involved in Evi-1-mediated leukemogenesis.
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85
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Ichikawa M, Akira S, Takeshita T. The Experience of Laparoscopic Sacrocolpopexy with Two Separate Meshes along the Anterior and Posterior Vaginal Walls for Multicompartment Pelvic Organ Prolapse in Japan. J Minim Invasive Gynecol 2009. [DOI: 10.1016/j.jmig.2009.08.372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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86
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Akira S, Abe T, Ichikawa M, Takeshita T. Prophylactic Intratubal Injection of Methotrexate after Linear Salpingostomy for Prevention of Persistent Ectopic Pregnancy. J Minim Invasive Gynecol 2009. [DOI: 10.1016/j.jmig.2009.08.451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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87
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Kita Y, Turin TC, Ichikawa M, Sugihara H, Morita Y, Tomioka N, Rumana N, Okayama A, Nakamura Y, Abbott RD, Ueshima H. Trend of Stroke Incidence in a Japanese Population: Takashima Stroke Registry, 1990-2001. Int J Stroke 2009; 4:241-9. [DOI: 10.1111/j.1747-4949.2009.00293.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Background In Japan, stroke mortality and incidence started to decline during the 1960s. The recent unfavourably diverging trends in risk factors make it uncertain whether the decline will continue. Few comprehensive stroke registries of long research duration exist in Japan to illustrate the trends in stroke incidence. Objective We examined 12-year stroke registration data to evaluate the current trend in a Japanese population. Methods Data were obtained from the Takashima Stroke Registry, covering approximately 55000 residents of Takashima County in central Japan. We calculated the age-adjusted stroke incidence rates (/100 000 person-years) and 95% confidence intervals for 1990–1992, 1993–1995, 1996–1998, and 1999–2001. We applied the direct method to adjust for the age distribution among the four periods. The incidence time trend was determined by calculating the average annual change across the study years using negative binomial regression analysis. Results There were 1453 (men: 771 and women: 682) registered first-ever stroke cases during 1990–2001. The diagnosis was established by neuro-imaging in 93·6% of the cases. The average age was 69·4 years in men and 74·2 years in women. The age-adjusted incidence rates of stroke across the four observation periods were 143·1 (confidence interval: 127·4-158·8) in 1990–1992, 147·4 (confidence interval: 131·9–162·8) in 1993–1995, 120·4 (confidence interval: 106·7–134·0) in 1996–1998, and 122·9 (confidence interval: 109·6–136·2) in 1999–2001. The stroke incidence across the study years showed an insignificant time trend, with an average annual change of −0·33% (confidence interval: −2·44 to 1·78) per year. Similar trends were observed for both men and women and stroke subtypes. Conclusions The previously reported declining trend in stroke incidence may have levelled off or slowed down considerably in the Japanese population.
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Turin TC, Kita Y, Rumana N, Takashima N, Ichikawa M, Sugihara H, Morita Y, Hirose K, Murakami Y, Miura K, Okayama A, Nakamura Y, Abbott RD, Ueshima H. Morning surge in circadian periodicity of ischaemic stroke is independent of conventional risk factor status: findings from the Takashima Stroke Registry 1990-2003. Eur J Neurol 2009; 16:843-51. [DOI: 10.1111/j.1468-1331.2009.02605.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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89
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Murata K, Wakabayashi Y, Kitago M, Ohara H, Watanabe H, Tamogami S, Warita Y, Yamagishi K, Ichikawa M, Takeuchi Y, Okamura H, Mori Y. Modulation of gonadotrophin-releasing hormone pulse generator activity by the pheromone in small ruminants. J Neuroendocrinol 2009; 21:346-50. [PMID: 19207811 DOI: 10.1111/j.1365-2826.2009.01836.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In small ruminants, such as goats and sheep, a primer pheromone produced by males induces an out-of-seasonal ovulation in anoestrous females, a phenomenon known as the male effect. The male effect is unique in that an external chemical stimulus can immediately modulate the activity of the hypothalamic gonadotrophin-releasing hormone (GnRH) pulse generator. We have established a monitoring method of the GnRH pulse generator activity in Shiba goat. Using this method as a sensitive bioassay to assess the male effect pheromone activity, we have shown that the male effect pheromone is synthesised in an androgen-dependent manner in the sebaceous glands or their vicinity in specific body regions in goats. Although chemical identity of the pheromone is yet to be determined, analyses of male goat hair extracts by gas chromatography fractionation suggest that the male effect pheromone is a volatile substance with relatively small molecular weight. From morphological and molecular biological studies in goats, it is suggested that the pheromone molecule is detected by a member of the V1R family located on both the olfactory neurones and the vomeronasal sensory neurones, and the pheromone signal is conveyed to the medial nucleus of amygdala via the main olfactory and vomeronasal pathways and, subsequently, to the hypothalamic GnRH pulse generator to enhance its activity.
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Yamamoto K, Koyanagi J, Tanaka A, Horie I, Ichikawa M, Swaminathan S, Hatcher JF, Bryan GT. NITRATION OF 2-CARBONYL-3,4-DICHLOROFURAN DERIVATIVES. ORG PREP PROCED INT 2009. [DOI: 10.1080/00304948909356376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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91
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Hisano T, Ichikawa M, Matsuoka T, Muraoka K, Hamana M. FORMATION OF A NEW TYPE OF 1:2 ADDUCT FROM THE REACTION OF 2,3-LUTIDINE N-OXIDE WITH PHENYL ISOCYANATE. ORG PREP PROCED INT 2009. [DOI: 10.1080/00304948109356152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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92
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Yamamoto K, Tanaka A, Ichikawa M, Swaminathan S, Bryan GT. THREE NEW PRODUCTS FROM METHYL 3,4-DIPHENYL-5-NITRO-2-FUROATE BY CATALYTIC REDDCTION. ORG PREP PROCED INT 2009. [DOI: 10.1080/00304948709356193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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93
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Hisano T, Muraoka K, Ichikawa M. AN IMPROVED SYNTHESIS OF 2-HETEROARYL-3-PHENYL-4(3H)-QUINAZOLINONES. ORG PREP PROCED INT 2009. [DOI: 10.1080/00304947709355660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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94
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Akira S, Iwasaki N, Ichikawa M, Mine K, Kuwabara Y, Takeshita T, Tajima H. Successful long-term management of adenomyosis associated with deep thrombosis by low-dose gonadotropin-releasing hormone agonist therapy. CLIN EXP OBSTET GYN 2009; 36:123-125. [PMID: 19688958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We report the case of a patient with adenomyosis complicated by deep vein thrombosis in whom low-dose gonadotropin-releasing hormone agonist (GnRHa) therapy was useful as a uterus-conserving therapeutic option. The patient was a 34-year-old nulliparous woman who presented with edema and pain in the left lower leg. The patient had been treated with four cycles of GnRHa therapy for adenomyosis and repeatedly experienced chronic pelvic pain, dysmenorrhea and anemia due to hypermenorrhea. Leg venography confirmed deep vein thrombosis, and thrombolytic therapy was performed to eliminate symptoms. Because the patient strongly wanted to conserve the uterus, low-dose GnRHa therapy was initiated. The patient is currently taking 450 microg/day buserelin acetate nasally (regular dose: 900 microg/day), and estradiol levels have been maintained at 24-50 pg/ml. Anemia, leg numbness and chronic pelvic pain have dissipated, and the patient has not experienced estrogen deficiency symptoms for more than two years.
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Ichikawa M, Konishi S. Constructing second-order accurate confidence intervals for communalities in factor analysis. THE BRITISH JOURNAL OF MATHEMATICAL AND STATISTICAL PSYCHOLOGY 2008; 61:361-78. [PMID: 17535484 DOI: 10.1348/000711007x204198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
In an effort to find accurate alternatives to the usual confidence intervals based on normal approximations, this paper compares four methods of generating second-order accurate confidence intervals for non-standardized and standardized communalities in exploratory factor analysis under the normality assumption. The methods to generate the intervals employ, respectively, the Cornish-Fisher expansion and the approximate bootstrap confidence (ABC), and the bootstrap-t and the bias-corrected and accelerated bootstrap (BC(a)). The former two are analytical and the latter two are numerical. Explicit expressions of the asymptotic bias and skewness of the communality estimators, used in the analytical methods, are derived. A Monte Carlo experiment reveals that the performance of central intervals based on normal approximations is a consequence of imbalance of miscoverage on the left- and right-hand sides. The second-order accurate intervals do not require symmetry around the point estimates of the usual intervals and achieve better balance, even when the sample size is not large. The behaviours of the second-order accurate intervals were similar to each other, particularly for large sample sizes, and no method performed consistently better than the others.
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Ono M, Kikusui T, Sasaki N, Ichikawa M, Mori Y, Murakami-Murofushi K. Early weaning induces anxiety and precocious myelination in the anterior part of the basolateral amygdala of male Balb/c mice. Neuroscience 2008; 156:1103-10. [DOI: 10.1016/j.neuroscience.2008.07.078] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2008] [Revised: 07/26/2008] [Accepted: 07/29/2008] [Indexed: 01/06/2023]
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97
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Nomura A, Ichikawa M, Sianipar RH, Miike H. Edge detection with reaction-diffusion equations having a local average threshold. PATTERN RECOGNITION AND IMAGE ANALYSIS 2008. [DOI: 10.1134/s1054661808020156] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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98
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Saka H, Kitagawa C, Yamamoto M, Suzuki R, Taniguchi H, Ichikawa M, Shimokata K. Phase I/II trial of TS-1 plus carboplatin in patients with advanced non-small cell lung cancer: Final report of a Central Japan Lung Study Group Trial-CJLSG0402. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.19056] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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99
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Nakahara S, Jayatilleke AU, Ichikawa M, Marasinghe A, Kimura A, Yoshida K. Feasibility of standardized injury surveillance and reporting: a comparison of data from four Asian nations. Inj Prev 2008; 14:106-12. [DOI: 10.1136/ip.2007.016824] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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100
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Sato T, Abe T, Ichikawa M, Fukushima Y, Nakamoto N, Koshikiya N, Kobayashi A, Yoda T. A randomized controlled trial assessing the effectiveness of professional oral care by dental hygienists. Int J Dent Hyg 2008; 6:63-7. [DOI: 10.1111/j.1601-5037.2007.00275.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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