Are you Takeshi Shirai?

Claim your profile

Publications (4)6.82 Total impact

  • Article: [Efficacy of preventive treatment for delayed emesis induced by FOLFOX4 chemotherapy].
    [show abstract] [hide abstract]
    ABSTRACT: The control of delayed emesis is very important in order to continue ambulatory chemotherapy. We performed retrospective study that examined the efficacy of preventive treatment (granisetron+dexamethasone+domperidone) for delayed emesis induced by FOLFOX4 chemotherapy for advanced and recurrent colorectal cancer. The subjects were 92 patients who underwent FOLFOX4 chemotherapy at the Cancer Institute Hospital of JFCR (group with preventive treatment: 50, group without preventive treatment: 42), and the observation period was set as the 1st-9th cycle. The complete nausea inhibition rate was 50.0% in the group with and 21.5% in the group without preventive treatment, showing a significantly higher inhibition rate in the former (p=0.0047). The complete vomiting inhibition rates were 86.0% and 66.7%, respectively, again showing a significantly higher inhibition rate in the former (p=0.015). On multivariate analysis (multiple logistic analysis), the development of nausea/vomiting and preventive treatment for delayed emesis were significantly associated, showing that the treatment was an independent preventive factor. All adverse reactions induced by preventive treatment were mild, suggesting no safety-related problem. These findings suggested the usefulness of preventive treatment with granisetron, dexamethasone, and domperidone for FOLFOX4 chemotherapy-induced delayed emesis.
    Yakugaku zasshi journal of the Pharmaceutical Society of Japan 09/2009; 129(8):949-55. · 0.39 Impact Factor
  • Article: [Roles of BPH impact index in the evaluation of impaired urination in patients with BPH].
    [show abstract] [hide abstract]
    ABSTRACT: To assess the significance and current status of the benign prostatic hyperplasia (BPH) impact index (BII) in the evaluation of subjective symptoms of impaired urination in so-called QOL disease, BPH. Over the past 2 year-period, in 159 patients with the diagnosis of BPH were asked to reply to each of the international prostate symptom score (I-PSS), QOL index and BII questionnaires. The subjective symptom scores (a total of 246 points) were evaluated from the viewpoint of clinical statistics in the search for any these and to find which questions cover the BII, most. 1) Statistically significant but moderate correlations were observed among I-PSS total score, QOL index and BII. The correlations among Qmax, BII and QOL were very weak. 2) Out of the 11 domains in both IPSS and BII, 2 questions of BII ("bothersomeness caused by urinary problems" and "degree of worry about well-being") and 4 questions of IPSS ("residual sense," " pollakisuria," "weak urinary stream" and "nocturia") were shared as QOL indices. Patient satisfaction was affected also by the questions in the BII. 3) Of the 7 BPH symptoms assessed in IPSS, 4 symptoms ("residual sense," "pollakisuria," "weak urinary stream" and "nocturia") affected the QOL index, and 4 symptoms ("urgency on micturition," "residual sense," "nocturia" and "strain at urination") affected BII. 4) Of the 7 symptoms assessed by IPSS, different symptoms affected each of the 4 BII questions. It is needed to assess BPH symptoms not only by the IPSS and QOL index but also based on BII to provide the detailed therapeutic instructions and thorough patients consultation.
    Nippon Hinyōkika Gakkai zasshi. The japanese journal of urology 10/2005; 96(6):623-31.
  • Article: Inhibition of excitatory neuronal cell death by cell-permeable calcineurin autoinhibitory peptide.
    [show abstract] [hide abstract]
    ABSTRACT: In glutamate-mediated excitatory neuronal cell death, immunosuppressants (FK506, Cys-A) are powerful agents that protect neurons from apoptosis. Immunosuppressants inhibit two types of enzyme, calcium/calmodulin-dependent protein phosphatase (calcineurin: CaN), and peptidyl-prolyl cis-trans-isomerase (PPIase) activity such as the FKBP family. In this study, we used a protein transduction approach to determine the functional role of CaN and to produce a potential therapeutic agent for glutamate-mediated neuronal cell death. We created a novel cell-permeable CaN autoinhibitory peptide using the 11 arginine protein transduction domain. This peptide was highly efficient at transducing into primary culture neurons, potently inhibited CaN phosphatase activities, and inhibited glutamate-mediated neuronal cell death. These results showed that CaN plays an important role in excitatory neuronal cell death and cell-permeable CaN autoinhibitory peptide could be a new drug to protect neurons from excitatory neuronal death.
    Journal of Neurochemistry 01/2004; 87(5):1145-51. · 4.06 Impact Factor
  • Article: Hic-5 interacts with GIT1 with a different binding mode from paxillin.
    [show abstract] [hide abstract]
    ABSTRACT: Hic-5, a member of the paxillin family of adaptor molecules, is localized at focal adhesion and implicated in integrin-mediated signaling. Hic-5 and paxillin exhibit structural homology and share interacting factors, however, diverse functions are suggested for them. In this study, we carried out yeast two-hybrid screening to identify Hic-5 interacting factors using its LD3-4 region, which includes the Hic-5-specific amino acid sequence, as a bait. Through the screening, we identified GIT1, an Arf GTPase-activating protein, as a Hic-5 binding protein. The interaction of these two proteins was mediated by the LD3 motif of Hic-5 and the C-terminal region, which includes a paxillin-binding subdomain, of GIT1. Although GIT1 is known as a paxillin-binding protein, we only observed weak association of paxillin with GIT1 in the overexpression system. In contrast, Hic-5 firmly bound to GIT1 under the same conditions. In addition, the paxillin/GIT1 complex contained PIX, a guanine nucleotide exchange factor, whereas the Hic-5/GIT1 complex contained a smaller amount of PIX. These results suggested that paxillin and Hic-5 associate with GIT1 with different binding modes, and that the Hic-5 complex possesses static features compared with the paxillin complex, which contains both positive and negative regulators of GTPases involved in actin dynamics. Moreover, Hic-5-mediated inhibition of cell spreading was restored by co-expression of the C-terminal fragment of GIT1, which perturbs the interaction of Hic-5 with endogenous GIT1. Thus, it was demonstrated that Hic-5 and GIT1 interact functionally in addition to showing a physical association.
    Journal of Biochemistry 09/2002; 132(2):279-89. · 2.37 Impact Factor