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Articles by T Fukui
Total Records ( 5 ) for T Fukui
  T Fukui and E. Lee
 

Background: Contribution of visuospatial abilities to the functional status in patients with Alzheimer’s disease (AD) has been controversial. Aim: To address whether visuospatial abilities have independent association with functional measures in patients with AD. Methods: We regressed performances on a global cognitive (the revised Hasegawa Dementia Scale: HDSR), executive/ visuoconstruction (Clock drawing), visuoperception (Clock reading: CRT), simple visuoconstruction (figure copying), and frontal behavioral tasks on measures of basic and instrumental activities of daily living (BADL and IADL) in 57 patients (78.0 + 6.1 years) with AD of various severity (mean HDSR score: 16.0 + 5.9). We sought independent contributions of these visuospatial measures to functional status. Results: Performance on the CRT contributed significantly to BADL and IADL and the results of HDSR contributed to IADL. Results of figure copying related significantly to BADL especially in mild AD. Conclusion: Visuospatial ability is one of the important contributors to functional status.

  Y Yamamoto , S Yamazaki , Y Hayashino , O Takahashi , Y Tokuda , T Shimbo , T Fukui , S Hinohara , Y Miyachi and S. Fukuhara
 

Objective  To evaluate the relationship between frequency of pruritic symptoms experienced over a 1-month period and psychological stress.

Design  Cohort study.

Setting  Population-based study in Japan.

Participants  A total of 2224 participants at least 18 years old and without psychiatric disorders participated in the Japan Health Diary Study (October 2003), a cohort study comprising a representative sample in Japan.

Main Outcome Measures  Frequency of pruritic symptoms assessed by self-reported health diaries over the 1-month period and subsequent psychological stress measured using the Japanese version of the Perceived Stress Scale.

Results  The 2224 participants had a mean age of 44.6 years, 1212 (54.5%) were women, and 70 (3.1%) presented with pruritic symptoms. Multivariable analysis showed that patients with pruritic symptoms had significantly higher psychological stress than those without pruritic symptoms (β coefficient, 2.33; 95% confidence interval [CI], 0.53-4.14; P = .01). Furthermore, a linear trend was observed between increased psychological stress and increased severity of pruritic symptoms, with β coefficients for the first, second, and third tertiles for symptoms of 0.81 (95% CI, –1.97 to 3.59), 1.77 (95% CI, –0.82 to 4.37), and 4.86 (95% CI, 1.29 to 8.43), respectively (P value for trend, .004).

Conclusion  Our results suggest that frequency of pruritic symptoms is associated with psychological stress in the general population.

  K Kawaguchi , H Murakami , T Taniguchi , M Fujii , S Kawata , T Fukui , Y Kondo , H Osada , N Usami , K Yokoi , Y Ueda , Y Yatabe , M Ito , Y Horio , T Hida and Y. Sekido
 

Malignant pleural mesothelioma (MPM) is an aggressive neoplasm associated with asbestos exposure. Although expression and activation of receptor tyrosine kinases (RTKs), including MET, have been reported in most MPM, specific RTK inhibitors showed less than the expected response in MPM cells. To determine whether the lack of response of MET inhibitors was due to cooperation with other RTKs, we determined activation status of MET and other RTKs, including epidermal growth factor receptor (EGFR) family of 20 MPM cell lines, and tested whether dual RTK inhibition is an effective therapeutic strategy. We detected MET upregulation and phosphorylation (thus indicating activation) in 14 (70%) and 13 (65%) cell lines, but treatment with MET-specific inhibitors showed weak or modest effect of suppression in most of the cell lines. Phospho-RTK array analysis revealed that MET was simultaneously activated with other RTKs, including EGFR, ErbB2, ErbB3 and platelet-derived growth factor receptor-β. Combination of MET and EGFR inhibitors triggered stronger inhibition on cell proliferation and invasion of MPM cells than that of each in vitro. These results indicated that coactivation of RTKs was essential in mesothelioma cell proliferation and/or survival, thus suggesting that simultaneous inhibition of RTKs may be a more effective strategy for the development of molecular target therapy for MPM.

  T Torisu , K Yamada , T Fukui , M Yamaki , J Nakamura and I. Saito
 

Although there have been some reports on the relationship between craniofacial morphology and the activity of the temporal muscle attached to the coronoid process, such relationship is still unclear. The aim of the present study was therefore to investigate the relationship between the coronoid process and overall craniofacial morphology using lateral cephalograms of 60 female subjects (mean age 9.6 years) without mandibular deviation. Statistical testing was undertaken using stepwise regression analysis.

Anterior coronoid marginal depth correlated negatively (r = 0.71) with gonial angle, SNA, and overjet. The coronoid angle also correlated negatively (r = 0.86) with both the vertical and horizontal lengths from sella to the coronoid tip as well as with the horizontal length from sella to the posterior ramus margin. Furthermore, the coronoid length correlated positively (r = 0.61) with the coronoid angle and the anterior coronoid marginal depth. The coronoid width was also positively (r = 0.69) correlated with overbite.

Coronoid process morphology is related not only to mandibular morphology and position but also to maxillary position and the dental relationship in the anterior region. It therefore seems clear that coronoid process morphology might be related to temporal muscle functioning and its associated craniofacial morphological measurements.

  T Matsumoto , M Ii , H Nishimura , T Shoji , Y Mifune , A Kawamoto , R Kuroda , T Fukui , Y Kawakami , T Kuroda , S. M Kwon , H Iwasaki , M Horii , A Yokoyama , A Oyamada , S. Y Lee , S Hayashi , M Kurosaka , S Takaki and T. Asahara
 

The therapeutic potential of hematopoietic stem cells/endothelial progenitor cells (HSCs/EPCs) for fracture healing has been demonstrated with evidence for enhanced vasculogenesis/angiogenesis and osteogenesis at the site of fracture. The adaptor protein Lnk has recently been identified as an essential inhibitor of stem cell factor (SCF)–cKit signaling during stem cell self-renewal, and Lnk-deficient mice demonstrate enhanced hematopoietic reconstitution. In this study, we investigated whether the loss of Lnk signaling enhances the regenerative response during fracture healing. Radiological and histological examination showed accelerated fracture healing and remodeling in Lnk-deficient mice compared with wild-type mice. Molecular, physiological, and morphological approaches showed that vasculogenesis/angiogenesis and osteogenesis were promoted in Lnk-deficient mice by the mobilization and recruitment of HSCs/EPCs via activation of the SCF–cKit signaling pathway in the perifracture zone, which established a favorable environment for bone healing and remodeling. In addition, osteoblasts (OBs) from Lnk-deficient mice had a greater potential for terminal differentiation in response to SCF–cKit signaling in vitro. These findings suggest that inhibition of Lnk may have therapeutic potential by promoting an environment conducive to vasculogenesis/angiogenesis and osteogenesis and by facilitating OB terminal differentiation, leading to enhanced fracture healing.

 
 
 
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