Time filter

Source Type

Hakata ku, Japan

Ishikawa H.,Kyoto Prefectural University of Medicine | Mutoh M.,National Cancer Center Research Institute | Suzuki S.,Nagoya City University | Tokudome S.,Nagoya City University | And 25 more authors.
Gut | Year: 2014

Objective: To evaluate the influence of low-dose, enteric-coated aspirin tablets (100 mg/day for 2 years) on colorectal tumour recurrence in Asian patients with single/multiple colorectal tumours excised by endoscopy. Design: A double-blinded, randomised, placebo-controlled multicentre clinical trial was conducted. Participants: 311 subjects with single/multiple colorectal adenomas and adenocarcinomas excised by endoscopy were enrolled in the study (152 patients in the aspirin group and 159 patients in the placebo group). Enrolment began at the hospitals (n=19) in 2007 and was completed in 2009. Results: The subjects treated with aspirin displayed reduced colorectal tumourigenesis and primary endpoints with an adjusted OR of 0.60 (95% CI 0.36 to 0.98) compared with the subjects in the placebo group. Subgroup analysis revealed that subjects who were non-smokers, defined as those who had smoked in the past or who had never smoked, had a marked reduction in the number of recurrent tumours in the aspirin-treated group. The adjusted OR for aspirin treatment in non-smokers was 0.37 (CI 0.21 to 0.68, p<0.05). Interestingly, the use of aspirin in smokers resulted in an increased risk, with an OR of 3.44. In addition, no severe adverse effects were observed in either group. Conclusions: Low-dose, enteric-coated aspirin tablets reduced colorectal tumour recurrence in an Asian population. The results are consistent with those obtained from other randomised controlled trials in Western countries. © 2014 BMJ Publishing Group Ltd & British Society of Gastroenterology.

Takeuchi H.,University of Fukui | Hosoda T.,University of Fukui | Kitai R.,University of Fukui | Kodera T.,University of Fukui | And 9 more authors.
Brain Tumor Pathology | Year: 2012

To investigate whether grade II oligodendroglioma was transformed to glioblastoma or not, histopa-thological evaluation of recurrent oligodendrogliomal tumors (OG) and diffuse astrocytomas (DA) was performed. The OG group was composed of ten patients with OG, including seven oligodendrogliomas and three oligoastrocytomas. The DA group was composed of ten patients with DA, including eight fibrillary astrocytomas and two gemistocytic astrocytomas. The histopathological parameters of glioblastoma including nuclear atypia, multinucleated giant cells, glomeruloid tufts (GT) as a marker of microvascular proliferation, necrosis, and the Ki-67 staining index were investigated. Evaluation of these parameters was scored as follows: 0, none; 1, sporadic; 2, partial; 3, extensive. There were no cases of transformation to glioblastoma in the OG group. There were five cases of transformation to secondary glioblastoma in the DA group. In recurrent tumors, scores of GT and necrosis in the OG group were significantly lower than those in the DA group (p < 0.005). Nuclear atypia and high proliferative activity (Ki-67 index) were identified in recurrent tumors of the OG group. Our study suggested that the extent of GT and necrosis in recurrent OG was less than that in recurrent DA, and transformation to glioblastoma from oligodendroglial tumor was exceptional. © The Japan Society of Brain Tumor Pathology 2012.

Takeuchi H.,University of Fukui | Hosoda T.,University of Fukui | Kitai R.,University of Fukui | Kodera T.,University of Fukui | And 9 more authors.
Brain Tumor Pathology | Year: 2012

There have been some recent reports about glioblastoma with oligodendroglial (OG) components and malignant glioma with primitive neuroectodermal tumor (PNET)-like components. We investigated whether the presence and extent of OG components and PNET-like components influenced the prognosis in patients with glioblastoma. Eighty-six patients with glioblastoma were divided into an OG group (28 %), which revealed areas with a honeycomb appearance, and a non-OG group (72 %) without a honeycomb appearance. Patients with glioblastoma were also divided into a PNET group (27 %), which revealed areas with PNET-like features defined as neoplastic cells with high N/C ratios and hyperchromatic oval-carrot-shaped nuclei, and lacked the typical honeycomb appearance, and a non-PNET group (73 %) without PNET features. There were no significant differences in overall survival among the OG, the non-OG, the PNET, and the non-PNET groups. Two patients who survived longer than 36 months had both OG and PNET components with 1p or 19q loss of heterozygosity. Perinuclear halo, which is a characteristic feature of oligodendrogliomas, is an artifact of tissue fixation. Therefore, we should not readily use the term glioblastoma with OG components. PNET-like components, which are considered rare in malignant gliomas, may be frequently identified in glioblastomas. © The Japan Society of Brain Tumor Pathology 2012.

Kakuda W.,Jikei University School of Medicine | Abo M.,Jikei University School of Medicine | Sasanuma J.,Shin Yurigaoka General Hospital | Shimizu M.,Shimizu Hospital | And 4 more authors.
Translational Stroke Research | Year: 2016

Several years ago, we proposed a combination protocol of repetitive transcranial magnetic stimulation (rTMS) and intensive occupational therapy (OT) for upper limb hemiparesis after stroke. Subsequently, the number of patients treated with the protocol has increased in Japan. We aimed to present the latest data on our proposed combination protocol for post-stroke upper limb hemiparesis as a result of a multi-institutional study. After confirming that a patient met the inclusion criteria for the protocol, they were scheduled to receive the 15-day inpatient protocol. In the protocol, two sessions of 20-min rTMS and 120-min occupational therapy were provided daily, except for Sundays and the days of admission/discharge. Motor function of the affected upper limb was evaluated by the Fugl-Meyer assessment (FMA) and Wolf motor function test (WMFT) at admission/discharge and at 4 weeks after discharge if possible. A total of 1725 post-stroke patients were studied (mean age at admission 61.4 ± 13.0 years). The scheduled 15-day protocol was completed by all patients. At discharge, the increase in FMA score, shortening in performance time of WMFT, and increase in functional ability scale (FAS) score of WMFT were significant (FMA score 46.8 ± 12.2 to 50.9 ± 11.4 points, p < 0.001; performance time of WMFT 2.57 ± 1.32 to 2.21 ± 1.33, p < 0.001; FAS score of WMFT 47.4 ± 14. to 51.4 ± 14.3 points, p < 0.001). Our proposed combination protocol can be a potentially safe and useful therapeutic intervention for upper limb hemiparesis after stroke, although its efficacy should be confirmed in a randomized controlled study. © 2016, Springer Science+Business Media New York.

Moriyama T.,Kyushu University | Matsumoto T.,Kyushu University | Esaki M.,Kyushu University | Nakamura S.,Kyushu University | Kimura H.,Kimura Hospital
Digestive Endoscopy | Year: 2013

Background and Aim Transnasal esophagogastroduodenoscopy (EGD) has become widely accepted in Japan. Better performance and compliance for the procedure are expected with appropriate nasal anesthesia.We aimed to elucidate the effectiveness, the safety and the compliance of nasal anesthesia for transnasal EGD. Methods Subjects were 372 asymptomatic patients examined by transnasal EGD for gastric cancer screening. They were pretreated with topical anesthesia either with a nasal spray method (Spr group, n = 127), cotton-tipped applicator method (Cot group, n = 115), or both (Com group, n = 130). Lidocaine (4%) was applied with atomizer in the Spr method, whereas a cotton-tipped applicator soaked in 4% lidocaine was placed in the nasal cavity for 5 min in the Cot method. After transnasal EGD, each subject rated procedure-related discomfort according to visual analogue scales. In subjects who had prior experience oftransoral EGD, tolerance against EGD was compared between transnasal and transoral routes. Results There were no severe adverse events related to topical anesthesia.Transnasal EGD was completed in 94.9% of the patients.Age, gender or insertion failure rate were not different among Spr, Cot and Com groups. Pain scores for anesthesia and examination were significantly lower in the Spr group, whereas the pain score for insertion was not different among the three groups.The rate of patients who deemed transnasal EGD to be more tolerable than transoral EGD was highest in the Spr group. Conclusions Topical nasal spray seems to be appropriate for topical anesthesia in transnasal EGD. © 2012 The Authors. Digestive Endoscopy © 2012 Japan Gastroenterological Endoscopy Society.

Discover hidden collaborations