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Okada T, Tsushima R, Taya S, Saito E, Takagi W, Sogo M, Ugawa S, Nosaka K, Takahashi M, Okawa K, Sakane K, Miyoshi T, Ito H, Doi M. Feasibility and safety of early initiation of a PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibitor in patients with acute myocardial infarction undergoing primary PCI. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.3340] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Recent ESC/EAS Guidelines for the management of dyslipidemia stated that the treatment goal of LDL cholesterol (LDL-C) in very high-risk patients is less than 55mg/dl. PCSK9 inhibitors in addition to strong statins could be a useful strategy for rapid and aggressive lowering of LDL-C. However, the feasibility and safety of early initiation of a PCSK9 inhibitor for AMI patients undergoing primary PCI remain unclear.
Objectives
We examined the effects of early initiation of a PCSK9 inhibitor, evolocumab, on lipid profile and inflammatory markers and its safety in AMI patients undergoing primary PCI.
Methods
This study is a single center, randomized, controlled trial involving 102 patients hospitalized for AMI. The patients were randomly assigned 1:1 to the evolocumab group and the control group. Evolocumab (140 mg) was subcutaneously injected within 24 hours after PCI and then every two weeks. All patients received pitavastatin (2mg/day) in addition to the allocated treatment. The primary endpoints were changes in lipid profile and inflammatory markers from baseline to 4 weeks.
Results
102 patients were enrolled between October 2017 and December 2019. 89 patients were ST-segment elevation myocardial infarction (STEMI), 13 patients were non-STEMI. Primary PCI was successfully performed in all patients. 76 patients were statin-naïve. 2 patients were excluded from analyses because they died severe heart failure in acute phase. Finally, 100 patients (evolocumab; n=51 and control; n=49) were analyzed. Baseline LDL-C was 121.6±30.3 mg/dl in the evolocumab group and 124.7±33.6 mg in the control group. Change in LDL-C from the baseline to 4 weeks was −92.4±32.4 mg/dl (−75%) in the evolocumab group and −44.8±32.1 mg/dl (−33.1%) in the control group (mean difference; 47.6mg/dl, 95% CI; 34.8 to 60.4 mg/dl, p<0.001). LDL-C <70mg/dl at 4 weeks was achieved in 96.0% of the evolocumab group as compared with 26.5% of the control group. Further, in the evolocumab group. LDL <55mg/dl was achieved in 92.1% at 2 weeks and 92.1% at 4 weeks. Regarding inflammatory markers, there were no significant difference in change in high-sensitivity C-reactive protein (p=0.49) and tumor necrosis factor-alpha (p=0.63) between two groups even after adjustment of baseline value. No adverse event associated with evolocumab was observed during this study.
Conclusion
In patients with AMI undergoing primary PCI, early initiation of evolocumab rapidly reduced LDL-C without no adverse event, and achieved LDL-C<55mg/dl in most patients within 2 weeks. Early administration of a PCSK9 inhibitor combined with a strong statin could be a feasible and safe treatment for AMI patients undergoing PCI.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- T Okada
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - R Tsushima
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - S Taya
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - E Saito
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - W Takagi
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - M Sogo
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - S Ugawa
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - K Nosaka
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - M Takahashi
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - K Okawa
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - K Sakane
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
| | - T Miyoshi
- Okayama University, Department of Cardiovascular Medicine, Okayama, Japan
| | - H Ito
- Okayama University, Department of Cardiovascular Medicine, Okayama, Japan
| | - M Doi
- Kagawa Prefectural Central Hospital, Dapartment of Cardiology, Takamatsu, Japan
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Matsumoto K, Futamura M, Miyaki T, Iwasa T, Imoto S, Doi M, Tokunaga S, Aogi K, Yoshimura K, Takano T. A phase 2 study evaluating dose dense AC (ddAC) followed by dose dense paclitaxel (ddP) supported by 3.6 mg peg-filgrastim (ddAC-ddP3.6) for patients (pts) with primary breast cancer (PBC) in Japan -WJOG9016B-. Breast 2019. [DOI: 10.1016/s0960-9776(19)30103-1] [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: 10/27/2022] Open
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3
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Ohsumi S, Kiyoto S, Takahashi M, Hara F, Takashima S, Aogi K, Matsuda M, Yamamura N, Matsuda A, Yamauchi T, Doi M. Abstract P4-16-13: Prospective study of scalp cooling for hair loss prevention in Japanese breast cancer women receiving (neo)adjuvant chemotherapy. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-16-13] [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: 11/16/2022]
Abstract
Abstract
Introduction
Recently scalp cooling during chemotherapy infusion has been reported to be quite effective to mitigate chemotherapy-induced alopecia. But data in Asian patients are quite limited.
Patients and methods
Japanese breast cancer female patients who planned to receive (neo)adjuvant chemotherapy were offered to participate in this prospective study of scalp cooling with Paxman Scalp Cooling System for alopecia prevention. The scalp cooling was done 30 minutes prior to and during and 90 minutes after each chemotherapy infusion. Photographs of the head of the participants were taken from 5 directions, namely front, back, both sides, and top, on the day of chemotherapy infusion and 1 month after the last infusion. Two investigators consisting of a physician and a nurse judged the grade of alopecia by looking at the photographs according to the WHO classification. The primary outcomes were the rates of patients with Grade 3 alopecia (defined as hair loss of > 50%) and the rates of patients who used a wig or hat to conceal the hair loss one month after the last infusion of chemotherapy. This paper reports on the former outcome mainly. They were asked to answer a brief questionnaire regarding headache, fatigue, chill etc. shortly after each cooling. They could use the cooling cap for free on the first cycle of chemotherapy. But they were required to purchase it (about 1,130 US$) for the scalp cooling of the following cycles.
Results
One hundred forty three patients participated in the study and actually used the cooling cap at least once. The mean and median age of them are 50.6 and 50, respectively (28 - 76). One hundred twenty nine patients completed the planned chemotherapy of 4 to 8 cycles (89 Pts 4 cycles, 1 Pt 6 cycles, 39 Pts 8 cycles). Among them (7 patients were not evaluable), 74 patients (60.7 %) had Grade 3 alopecia 1 month after chemotherapy. In 80 patients who used the scalp cooling system throughout the planned chemotherapy (1 patient was not evaluable), 36 patients (45.6 %) experienced Grade 3 alopecia. On the other hand, among 49 patients who discontinued the cooling mostly after the 1st cycle (6 were not evaluable), 38 (88.3 %) had Grade 3 alopecia. When we restrict them to 33 (5 were not evaluable) who decided to discontinue the cooling by day10 of the first cycle of chemotherapy to exclude the patients who discontinued it because of less effect on alopecia prevention than they expected, 25 (89.3 %) experienced Grade 3 alopecia. Comparing the results of those who completed the cooling and patients who decided to discontinue it by day10 of the first cycle, the rates of Grade 3 alopecia (45.6 % vs. 89.3 %) were statistically significantly different in favor of the former (P = 0.0001). Most patients complained of some headache, chill, and pain of the jaw.
Conclusion
Scalp cooling with Paxman Scalp Cooling System during chemotherapy infusion in Asian women seems as effective for hair loss mitigation as in Caucasian women.
Citation Format: Ohsumi S, Kiyoto S, Takahashi M, Hara F, Takashima S, Aogi K, Matsuda M, Yamamura N, Matsuda A, Yamauchi T, Doi M. Prospective study of scalp cooling for hair loss prevention in Japanese breast cancer women receiving (neo)adjuvant chemotherapy [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-16-13.
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Affiliation(s)
- S Ohsumi
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - S Kiyoto
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - M Takahashi
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - F Hara
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - S Takashima
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - K Aogi
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - M Matsuda
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - N Yamamura
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - A Matsuda
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - T Yamauchi
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
| | - M Doi
- NHO Shikoku Cancer Center, Matsuyama, Ehime, Japan
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Miyoshi T, Kotani K, Doi M, Nakamura K, Kohno K, Koyama Y, Ito H. High baseline lipoprotein(A) Level as a risk factor for coronary artery calcification progression: Sub-analysis of a prospective multicenter trial. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.033] [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: 11/26/2022]
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Sumi A, Chambers JK, Doi M, Kudo T, Omachi T, Uchida K. Clinical features and outcomes of Merkel cell carcinoma in 20 cats. Vet Comp Oncol 2018; 16:554-561. [PMID: 30022593 DOI: 10.1111/vco.12414] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 11/28/2022]
Abstract
The biological behaviour and prognostic factors of Merkel cell carcinoma (MCC) in 20 cats were studied. The tumours were surgically removed and histopathologically examined. The animals were 8 to 20 years old (median age: 14 years), and the tumours were predominantly located in the neck and head. Follow-up data were available in 17 cases, and 12 cats died within a year of surgery. The overall median survival time after resection was 243 days (range 16-360 days). Recurrence occurred in 11 cases, although 6 of them (55%) were found to be margin-negative. Possible metastasis occurred after the surgery in 10 cases, although 6 of them (60%) were found to be margin-negative. The histopathological features of MCC included tumour necrosis in 16 cases (80%), vascular invasion in 6 cases (38%) and high mitotic counts (median: 28.5 per high-power field). Irregular acanthosis was noted adjacent to the tumours in 9 cases (60%). Immunohistochemically, the tumour cells were positive for cytokeratin (CK) 20 and p63 in all cases, synaptophysin in 19 (95%) cases, and CK18 in 16 cases (80%). The study shows that feline MCC is associated with a poor prognosis and exhibited a strong tendency towards local recurrence, regional lymph node metastasis and distant spread.
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Affiliation(s)
- A Sumi
- Diagnostic Laboratory, Patho-Labo, Ito, Shizuoka, Japan
| | - J K Chambers
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - M Doi
- Diagnostic Laboratory, Patho-Labo, Ito, Shizuoka, Japan
| | - T Kudo
- Diagnostic Laboratory, Patho-Labo, Ito, Shizuoka, Japan
| | - T Omachi
- Diagnostic Laboratory, Patho-Labo, Ito, Shizuoka, Japan
| | - K Uchida
- Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
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Yoshino A, Okamoto Y, Okada G, Takamura M, Ichikawa N, Shibasaki C, Yokoyama S, Doi M, Jinnin R, Yamashita H, Horikoshi M, Yamawaki S. Changes in resting-state brain networks after cognitive-behavioral therapy for chronic pain. Psychol Med 2018; 48:1148-1156. [PMID: 28893330 DOI: 10.1017/s0033291717002598] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Cognitive-behavioral therapy (CBT) is thought to be useful for chronic pain, with the pathology of the latter being closely associated with cognitive-emotional components. However, there are few resting-state functional magnetic resonance imaging (R-fMRI) studies. We used the independent component analysis method to examine neural changes after CBT and to assess whether brain regions predict treatment response. METHODS We performed R-fMRI on a group of 29 chronic pain (somatoform pain disorder) patients and 30 age-matched healthy controls (T1). Patients were enrolled in a weekly 12-session group CBT (T2). We assessed selected regions of interest that exhibited differences in intrinsic connectivity network (ICN) connectivity strength between the patients and controls at T1, and compared T1 and T2. We also examined the correlations between treatment effects and rs-fMRI data. RESULTS Abnormal ICN connectivity of the orbitofrontal cortex (OFC) and inferior parietal lobule within the dorsal attention network (DAN) and of the paracentral lobule within the sensorimotor network in patients with chronic pain normalized after CBT. Higher ICN connectivity strength in the OFC indicated greater improvements in pain intensity. Furthermore, ICN connectivity strength in the dorsal posterior cingulate cortex (PCC) within the DAN at T1 was negatively correlated with CBT-related clinical improvements. CONCLUSIONS We conclude that the OFC is crucial for CBT-related improvement of pain intensity, and that the dorsal PCC activation at pretreatment also plays an important role in improvement of clinical symptoms via CBT.
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Affiliation(s)
- A Yoshino
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - Y Okamoto
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - G Okada
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - M Takamura
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - N Ichikawa
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - C Shibasaki
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - S Yokoyama
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - M Doi
- Department of Dental Anesthesiology,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - R Jinnin
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - H Yamashita
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
| | - M Horikoshi
- National Center for Cognitive Behavior Therapy and Research,National Center of Neurology and Psychiatry (NCNP),4-1-1, Ogawahigashicho,Kodaira,Tokyo 187-0031,Japan
| | - S Yamawaki
- Department of Psychiatry and Neurosciences,Division of Frontier Graduate School of Biomedical Sciences,Hiroshima University,1-2-3 Kasumi,Minami-ku,Hiroshima 734-8551,Japan
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Tsutani Y, Miyata Y, Masuda T, Fujitaka K, Doi M, Awaya Y, Kuyama S, Kitaguchi S, Ueda K, Okada M. Multicenter phase II study of cisplatin, pemetrexed, plus bevacizumab followed by maintenance pemetrexed plus bevacizumab for patients with advanced or recurrent non-squamous non-small cell lung cancer: MAP study. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx671.035] [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: 11/12/2022] Open
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Ejiri K, Miyoshi T, Kohno K, Nakahama M, Doi M, Munemasa M, Murakami M, Takaishi A, Nakamura K, Ito H. P4287Impact of coronary stent length on periprocedural myocardial injury after percutaneous coronary intervention for stable coronary artery disease: from the RINC randomized controlled trial data. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p4287] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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9
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Takahashi M, Okawa K, Himoto A, Akai H, Hara S, Matsuo N, Sudo Y, Sogo M, Ugawa S, Okada T, Nosaka K, Sakane K, Doi M. P2700Fatal risk of warfarin in asian very elderly patients with atrial fibrillation in direct oral anti-coagulant era. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2700] [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: 11/14/2022] Open
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10
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Yamanaka T, Miyoshi T, Ejiri K, Kohno K, Nakahama M, Doi M, Munemasa M, Murakami M, Takaishi A, Nakamura K, Ito H. P837Comparison of renal outcome with renote ischemic preconditioning versus nicorandil following percutaneous coronary intervention in stable angina patients; results from the RINC trial. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx501.p837] [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: 11/14/2022] Open
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11
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Okawa K, Miyoshi T, Hara S, Matuo N, Sogo M, Okada T, Ugawa S, Nosaka K, Takahashi M, Sakane K, Doi M, Morita H, Ito H. P873Differences in endothelial dysfunction induced by paroxysmal and persistent atrial fibrillation: insights from the restoration of sinus rhythm with catheter ablation. Europace 2017. [DOI: 10.1093/ehjci/eux151.055] [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: 11/14/2022] Open
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Kato H, Kawashima S, Mimuro S, Obata Y, Doi M, Nakajima Y. An evaluation of deep-forehead temperature (spoton®) in ICU patients after cardiac surgery. Intensive Care Med Exp 2015. [PMCID: PMC4797347 DOI: 10.1186/2197-425x-3-s1-a111] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Matsumoto S, Tan P, Baker J, Durbin K, Tomiya M, Azuma K, Doi M, Elliott RB. Clinical porcine islet xenotransplantation under comprehensive regulation. Transplant Proc 2015; 46:1992-5. [PMID: 25131091 DOI: 10.1016/j.transproceed.2014.06.008] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Xenotransplantation with porcine islets is a promising approach to overcome the shortage of human donors. This is the first report of phase 1/2a xenotransplantation study of encapsulated neonatal porcine islets under the current framework of regulations for xenotransplantation in New Zealand. METHODS Newborn piglets were anesthetized and bled, and the pancreata were removed with the use of sterile technique and processed. Encapsulated neonatal porcine islets were implanted with the use of laparoscopy into the peritoneal cavity of 14 patients with unstable type 1 diabetes without any immunosuppressive drugs. The patients received encapsulated islets of 5,000 (n = 4; group 1), 10,000 (n = 4; group 2), 15,000 (n = 4; group 3), or 20,000 (n = 2; group 4) islet equivalents per kg body weight. Outcome was determined from adverse event reports, HbA1c, total daily insulin dose, and frequency of unaware hypoglycemic events. To assess graft function, transplant estimated function (TEF) scores were calculated. Sufficient or marginal numbers of encapsulated neonatal porcine islets were transplanted into streptozotocin-induced diabetic B6 mice as an in vivo functional assay. RESULTS There were 4 serious adverse events, of which 3 were considered to be possibly related to the procedure. Tests for porcine endogenous retrovirus DNA and RNA were all negative. The numbers of unaware hypoglycemia events were reduced after transplantation in all groups. Four of 14 patients attained HbA1c <7% compared with 1 at baseline. The average TEF scores were 0.17, 0.02, -0.01, and 0.08 in groups 1, 2, 3, and 4 respectively. The in vivo study demonstrated that a sufficient number of the transplanted group reversed diabetes with positive porcine C-peptide. CONCLUSIONS Transplantation of encapsulated neonatal porcine islets was safe and was followed by a reduction in unaware hypoglycemia events in unstable type 1 diabetic patients. The mouse in vivo assessment data demonstrated certain graft function.
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Affiliation(s)
- S Matsumoto
- Otsuka Pharmaceutical Factory, Naruto, Japan.
| | - P Tan
- Living Cell Technologies, Auckland, New Zealand
| | - J Baker
- Centre for Clinical Research and Effective Practice, Middlemore Hospital, Auckland, New Zealand
| | - K Durbin
- Living Cell Technologies, Auckland, New Zealand
| | - M Tomiya
- Otsuka Pharmaceutical Factory, Naruto, Japan
| | - K Azuma
- Otsuka Pharmaceutical Factory, Naruto, Japan
| | - M Doi
- Otsuka Pharmaceutical Factory, Naruto, Japan
| | - R B Elliott
- Living Cell Technologies, Auckland, New Zealand
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Yamauchi M, Shinozaki K, Ikeda S, Nitta T, Doi M. Comparison Between Primary Tumor Resection and Primary Chemotherapy for Patients with Unresectable Colorectal Cancer. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.108] [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: 11/13/2022] Open
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15
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Atsumi C, Sasaki N, Kawaguchi K, Hirayama T, Takasuna H, Tanaka Y, Doi M, Takagi M, Hasegawa Y. Atypical case of influenza vaccinated acute encephalopathy diagnosed by pathological approach. A case report and review of the literature. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.2256] [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: 10/26/2022]
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16
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Takagi W, Miyoshi T, Kajiya M, Iwamoto M, Ohkawa K, Nosaka K, Nakayama R, Takeda K, Hirohata S, Doi M. Impact of serum adipocyte fatty acid-binding protein on clinical outcome in patients with stable angina undergoing percutaneous coronary intervention. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p724] [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: 11/13/2022] Open
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17
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Nishii N, Kubo M, Okamoto Y, Fujii S, Watanabe A, Doi M, Banba K, Yamada K, Morita H, Ito H. Optivol alert with low intrathoracic impedance can predict increased b-type natriuretic peptide instead of only optivol alert: MOMOTARO study. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5086] [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: 11/14/2022] Open
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18
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Okuda S, Fukuda M, Hino A, Kato T, Doi M, Kobayashi S, Yamamoto T, Matsuzaki M, Yano M. Dantrolene inhibits aberrant Ca2+ release by stabilizing inter-domain interactions within the ryanodine receptor in cardiac troponin T-related familial hypertrophic cardiomyopathy. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p5026] [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: 11/14/2022] Open
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Yamagishi K, Iso H, Kokubo Y, Saito I, Yatsuya H, Ishihara J, Inoue M, Tsugane S, Sobue T, Hanaoka T, Ogata J, Baba S, Mannami T, Okayama A, K. Y, Miyakawa K, Saito F, Koizumi A, Sano Y, Hashimoto I, Ikuta T, Tanaba Y, Miyajima Y, Suzuki N, Nagasawa S, Furusugi Y, Nagai N, Sanada H, Hatayama Y, Kobayashi F, Uchino H, Shirai Y, Kondo T, Sasaki R, Watanabe Y, Miyagawa Y, Kobayashi Y, Machida M, Kishimoto Y, Takara E, Fukuyama T, Kinjo M, Irei M, Sakiyama H, Imoto K, Yazawa H, Seo T, Seiko A, Ito F, Shoji F, Saito R, Murata A, Minato K, Motegi K, Fujieda T, Abe T, Katagiri M, Suzuki M, Matsui K, Doi M, Terao A, Ishikawa Y, Tagami T, Doi H, Urata M, Okamoto N, Ide F, Sueta H, Sakiyama H, Onga N, Takaesu H, Uehara M, Horii F, Asano I, Yamaguchi H, Aoki K, Maruyama S, Ichii M, Takano M, Matsushima S, Natsukawa S, Akabane M, Konishi M, Okada K, Honda Y, Sakurai KYS, Tsuchiya N, Sugimura H, Tsubono Y, Kabuto M, Tominaga S, Iida M, Ajiki W, Ioka A, Sato S, Yasuda N, Nakamura K, Kono S, Suzuki K, Takashima Y, Yoshida M, Maruyama E, Yamaguchi M, Matsumura Y, Sasaki S, Watanabe S, Kadowaki T, Noda M, Mizoue T, Kawaguchi Y, Shimizu H. Dietary intake of saturated fatty acids and incident stroke and coronary heart disease in Japanese communities: the JPHC Study. Eur Heart J 2013; 34:1225-32. [DOI: 10.1093/eurheartj/eht043] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Yamauchi M, Shinozaki K, Doi M, Hamai K. Impressive Cases of Advanced Gastric Cancer Successfully Managed with Trastuzumab Containing Chemotherapy. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32455-8] [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: 10/25/2022] Open
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21
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Nishikawa K, Hagisawa K, Kinoshita M, Shono S, Katsuno S, Doi M, Yanagawa R, Suzuki H, Iwaya K, Saitoh D, Sakamoto T, Seki S, Takeoka S, Handa M. Fibrinogen γ-chain peptide-coated, ADP-encapsulated liposomes rescue thrombocytopenic rabbits from non-compressible liver hemorrhage. J Thromb Haemost 2012; 10:2137-48. [PMID: 22905905 DOI: 10.1111/j.1538-7836.2012.04889.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [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: 11/28/2022]
Abstract
BACKGROUND We developed a fibrinogen γ-chain (dodecapeptide HHLGGAKQAGDV [H12])-coated, ADP-encapsulated liposome (H12-[ADP]-liposome) that accumulates at bleeding sites via interaction with activated platelets via glycoprotein IIb-IIIa and augments platelet aggregation by releasing ADP. OBJECTIVE To evaluate the efficacy of H12-(ADP)-liposomes for treating liver hemorrhage in rabbits with acute thrombocytopenia. METHODS Thrombocytopenia (platelets < 50 000 μL(-1)) was induced in rabbits by repeated blood withdrawal (100 mL kg(-1) in total) and isovolemic transfusion of autologous washed red blood cells. H12-(ADP)-liposomes with platelet-poor plasma (PPP), platelet-rich plasma (PRP), PPP, ADP liposomes with PPP or H12-(PBS)-liposomes/PPP, were administered to the thrombocytopenic rabbits, and liver hemorrhage was induced by penetrating liver injury. RESULTS Administration of H12-(ADP)-liposomes and of PRP rescued all thrombocytopenic rabbits from liver hemorrhage as a result of potent hemostasis at the liver bleeding site, although rabbits receiving PPP or ADP liposomes showed 20% survival in the first 24 h. Administration of H12-(ADP)-liposomes and of PRP suppressed both bleeding volume and time from the site of liver injury. H12-(phosphate-buffered saline)-liposomes lacking ADP also improved rabbit survival after liver hemorrhage, although their hemostatic effect was weaker. In rabbits with severe thrombocytopenia (25 000 platelets μL(-1)), the hemostatic effects of H12-(ADP)-liposomes tended to be attenuated as compared with those of PRP treatment. Histologic examination revealed that H12-(ADP)-liposomes accumulated at the bleeding site in the liver. Notably, neither macrothombi nor microthrombi were detected in the lung, kidney or liver in rabbits treated with H12-(ADP)-liposomes. CONCLUSIONS H12-(ADP)-liposomes appear to be a safe and effective therapeutic tool for acute thrombocytopenic trauma patients with massive bleeding.
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Affiliation(s)
- K Nishikawa
- Departments of Traumatology and Critical Care Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan
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Hamai K, Shinozaki K, Okamoto Y, Yamauchi M, Doi M. Two Autopsy Cases of Cancer of Unknown Primary which were Needed to be Distinguished from Adrenal Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32524-2] [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: 11/28/2022] Open
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23
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Arai S, Doi M. Skin formation and bubble growth during drying process of polymer solution. Eur Phys J E Soft Matter 2012; 35:57. [PMID: 22772595 DOI: 10.1140/epje/i2012-12057-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2012] [Revised: 06/06/2012] [Accepted: 06/12/2012] [Indexed: 06/01/2023]
Abstract
When a polymer solution with volatile solvent is dried, skins are often formed at the surface of the solution. It has been observed that after the skin is formed, bubbles often appear in the solution. We conducted experiments to clarify the relation between the skin formation and the bubble formation. We measured the time dependence of the thickness of the skin layer, the size of the bubbles, and the pressure in the solution. From our experiments, we concluded that i) the gas in the bubble is a mixture of solvent vapor and air dissolved in the solution, ii) the bubble nucleation is assisted by the pressure decrease in the solution covered by the skin layer, and iii) the growth of the bubbles is diffusion limited, mainly limited by the diffusion of air molecules dissolved in the solution.
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Affiliation(s)
- S Arai
- Graduate School of Engineering, The University of Tokyo, Tokyo, Japan.
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Narita M, Qiu D, Hamaguchi M, Doi M, Futamura M, Sakamoto N, Saito H, Ohya Y. Maternal Diet during Pregnancy and Wheeze and Eczema in Infants; the Japanese Birth Cohort (T-CHILD) Study. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.075] [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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25
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Doi M, Rekha RS, Ahmed S, Okada M, Roy AK, Arifeen SE, Ekstrom EC, Raqib R, Wagatsuma Y. P2-388 Calcium in breast milk is associated with the underweight of infant at around 6 months age in a cohort of Bangladesh. Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976l.18] [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: 11/04/2022]
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26
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Takahashi M, Doi M, Okada M, Munakata T, Wagatsuma Y. P2-480 International comparison on the validity and the reliability of the "international aids questionnaire". Br J Soc Med 2011. [DOI: 10.1136/jech.2011.142976m.7] [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: 11/04/2022]
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Narita M, Qiu D, Hamaguchi M, Doi M, Futamura M, Sakamoto N, Ohya Y. Maternal Diet during Pregnancy and Wheeze and Eczema in Infants; the Japanese Birth Cohort (T-CHILD) Study. J Allergy Clin Immunol 2011. [DOI: 10.1016/j.jaci.2010.12.691] [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]
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29
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Himeno S, Doi M, Fujishiro H. Interaction of cadmium and manganese in cellular uptake and toxicity. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.965] [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: 10/19/2022]
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30
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Doi M, Takeda T, Sakurai Y, Kato J, Hayashi T, Fukuda K, Takase T, Shima M. Altered immunoglobulin A and M levels associated with changes in BAFF and APRIL after administration of intravenous immunoglobulin to treat Kawasaki disease. J Investig Allergol Clin Immunol 2010; 20:413-418. [PMID: 20945608] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
BACKGROUND Kawasaki disease (KD) is an acute vasculitis of unknown etiology. Immunoregulatory abnormalities have been thought to contribute to its pathogenesis. Although treatment with intravenous immunoglobulin (IVIG) effectively prevents significant cardiac morbidity, the mechanism by which IVIG produces an effect in KD has yet to be fully elucidated. OBJECTIVE To investigate the effects of IVIG on the immune system of patients with KD. PATIENTS AND METHODS Eleven patients with KD (mean [SD] age, 2.2 [1.5] years) were enrolled in this prospective study and treated with high-dose IVIG therapy (2 g/kg in 1 or 2 infusions) during the acute phase of the disease. We examined immunological changes, with special reference to Ig levels and 2 previously unassessed cytokines: B cell-activating factor belonging to the tumor necrosis factor family (BAFF), and a proliferation-inducing ligand (APRIL). RESULTS Clinical symptoms disappeared quickly in all cases, with no coronary artery abnormalities. IgA and IgM levels responded more rapidly than previously reported and reached a peak between the 3rd and 10th day after the start of IVIG treatment. The mean (SD) BAFF level was high before IVIG treatment (3234 [1904] pg/mL) and decreased significantly (1085 [257] pg/mL) after IVIG treatment, whereas the mean (SD) APRIL level before IVIG treatment (18.0 [10.0] ng/mL) rose significantly (120.6 [41.2] ng/mL). A significant inverse correlation between BAFF and APRIL was observed in patients with KD. CONCLUSIONS These results suggest that IVIG may affect the pathogenesis of KD through alteration of BAFF/APRIL.
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Affiliation(s)
- M Doi
- Department of Pediatrics, Yao Municipal Hospital, Yao, Japan
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Miyoshi T, Doi M, Hirohata S, Kuaschi S. Abstract: P376 CARDIO-ANKLE VASCULAR INDEX IS INDEPENDENTLY ASSOCIATED WITH CORONARY ATHEROSCLEROSIS AND LEFT VENTRICULAR FUNCTION IN PATIENTS WITH ISCHEMIC HEART DISEASE. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70671-3] [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]
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32
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Kinno M, Ishizawa K, Shimada S, Masaoka H, Doi M, Seyama S, Komori T, Hirose T. Cytology is a useful tool for the diagnosis of rosette-forming glioneuronal tumour of the fourth ventricle: a report of two cases. Cytopathology 2009; 21:194-7. [DOI: 10.1111/j.1365-2303.2008.00619.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: 11/30/2022]
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33
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Vives i Batlle J, Balonov M, Beaugelin-Seiller K, Beresford NA, Brown J, Cheng JJ, Copplestone D, Doi M, Filistovic V, Golikov V, Horyna J, Hosseini A, Howard BJ, Jones SR, Kamboj S, Kryshev A, Nedveckaite T, Olyslaegers G, Pröhl G, Sazykina T, Ulanovsky A, Vives Lynch S, Yankovich T, Yu C. Inter-comparison of absorbed dose rates for non-human biota. Radiat Environ Biophys 2007; 46:349-73. [PMID: 17665210 DOI: 10.1007/s00411-007-0124-1] [Citation(s) in RCA: 9] [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] [Subscribe] [Scholar Register] [Received: 03/06/2007] [Accepted: 07/05/2007] [Indexed: 05/16/2023]
Abstract
A number of approaches have been proposed to estimate the exposure of non-human biota to ionizing radiation. This paper reports an inter-comparison of the unweighted absorbed dose rates for the whole organism (compared as dose conversion coefficients, or DCCs) for both internal and external exposure, estimated by 11 of these approaches for selected organisms from the Reference Animals and Plants geometries as proposed by the International Commission on Radiological Protection. Inter-comparison results indicate that DCCs for internal exposure compare well between the different approaches, whereas variation is greater for external exposure DCCs. Where variation among internal DCCs is greatest, it is generally due to different daughter products being included in the DCC of the parent. In the case of external exposures, particularly to low-energy beta-emitters, variations are most likely to be due to different media densities being assumed. On a radionuclide-by-radionuclide basis, the different approaches tend to compare least favourably for (3)H, (14)C and the alpha-emitters. This is consistent with models with different source/target geometry assumptions showing maximum variability in output for the types of radiation having the lowest range across matter. The intercomparison demonstrated that all participating approaches to biota dose calculation are reasonably comparable, despite a range of different assumptions being made.
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Affiliation(s)
- J Vives i Batlle
- Westlakes Scientific Consulting Ltd, The Princess Royal Building, Westlakes Science and Technology Park, Moor Row, Cumbria, UK.
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Yamaguchi T, Doi M. Debonding dynamics of pressure-sensitive adhesives: 3D block model. Eur Phys J E Soft Matter 2006; 21:331-9. [PMID: 17297565 DOI: 10.1140/epje/i2006-10073-5] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2006] [Accepted: 01/04/2007] [Indexed: 05/13/2023]
Abstract
We develop a 3-dimensional mechanical model which describes cavity expansions in a viscoelastic solid medium during the debonding phase of the probe-tack test. The stress-strain curves are in good agreement with experiments for the typical pressure-sensitive adhesives. We also show that the separation speed dependence can be explained by viscous dissipations due to large strain rates around the cavities.
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Affiliation(s)
- T Yamaguchi
- CREST, Japan Science and Technology Agency (JST), 7-3-1 Hongo, 113-8656, Japan.
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Tajiri K, Sugaya M, Nagaya T, Orihara H, Ishibashi Y, Doi M, Inoue A. The Physical Properties of a Side-Chain Type Polysiloxane Liquid-Crystalline Polymer with Electrorheological Effect. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/10587259708041996] [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: 10/23/2022]
Affiliation(s)
- K. Tajiri
- a Department of Applied Physics, School of Engineering , Nagoya University , Furo-cho, Chikusa-ku, Nagoya , 464-01 , Japan
| | - M. Sugaya
- a Department of Applied Physics, School of Engineering , Nagoya University , Furo-cho, Chikusa-ku, Nagoya , 464-01 , Japan
| | - T. Nagaya
- a Department of Applied Physics, School of Engineering , Nagoya University , Furo-cho, Chikusa-ku, Nagoya , 464-01 , Japan
| | - H. Orihara
- a Department of Applied Physics, School of Engineering , Nagoya University , Furo-cho, Chikusa-ku, Nagoya , 464-01 , Japan
| | - Y. Ishibashi
- a Department of Applied Physics, School of Engineering , Nagoya University , Furo-cho, Chikusa-ku, Nagoya , 464-01 , Japan
| | - M. Doi
- a Department of Applied Physics, School of Engineering , Nagoya University , Furo-cho, Chikusa-ku, Nagoya , 464-01 , Japan
| | - A. Inoue
- b Central Laboratory , Asahi Chemical Industry Co., Ltd. , 2-1 Samejima, Fuji, Shizuoka , 416 , Japan
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Gendeh BS, Doi M, Selladurai BM, Khalid BAK, Jegan T, Misiran K. The role of endoscopic endonasal approach to pituitary tumours: HUKM experience. Med J Malaysia 2006; 61:343-8. [PMID: 17240587] [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: 05/13/2023]
Abstract
Surgery for pituitary tumours at our institution was performed by rhinosurgical route by combined procedure by otolaryngologist and neurosurgeons. A retrospective review of case records of patients who had endonasal endoscopic transphenoidal approach for pituitary tumours from September 1998 to December 2004 was performed. A total of 81 trans-sphenoidal surgeries were performed during this study period. Only 68 case records with adequate information were available for review, 56 patients were included in the study and 12 were excluded. There were 24 males (42%) and 32 females (58%). The ethnic distribution, were 29 Malays, 24 Chinese, 2 Indian and 1 others. The age ranged from 16 years to 76 years, with a mean of 46 years. The majority of our patients presented with visual symptoms (38), headache (28), menstrual cycle disturbance or impotence (14) and acromegalic features (16). Forty patients had macroadenoma (71%) and 16 had microadenomas (29%). Thirty-six patients out of 40 macro-adenomas had suprasellar extensions (90%). Only eleven patients had lumbar drain inserted prior to commencement of the surgery and the majority of these were macroadenomas. The common complications encountered were diabetes insipidus (4), cerebrospinal fluid leak (2), meningitis (3), epistaxis (2), septal perforation (2), intercavernous sinus haemorrhage (3) and anterior pituitary insufficiency (2). Our study reveals that endonasal trans-sphenoidal approach is a safe and effective method of management of pituitary adenomas.
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Affiliation(s)
- B S Gendeh
- Department of Otorhinolaryngology, Head and Neck Surgery, The National University Hospital, UKM, Faculty of Medicine, Cheras, Kuala Lumpur
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Yamaguchi T, Morita H, Doi M. Modeling on debonding dynamics of pressure-sensitive adhesives. Eur Phys J E Soft Matter 2006; 20:7-17. [PMID: 16733634 DOI: 10.1140/epje/i2005-10078-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2005] [Accepted: 03/08/2006] [Indexed: 05/09/2023]
Abstract
We propose a simple mechanical model describing viscoelasticity and cavitation during the debonding process in pressure-sensitive adhesives (PSA). Our calculation qualitatively reproduces typical stress-strain curves in the probe-tack test, such as the steep stress maxima and the following plateau region. It is shown that in the thin-film geometry the stress-strain curve is essentially determined by the cavities created by the large negative pressure. Effects of pre-existent air bubbles due to surface roughness are also discussed.
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Affiliation(s)
- T Yamaguchi
- CREST, Japan Science and Technology Agency, Japan.
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38
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Asano A, Yamada T, Katsuya Y, Taniguchi T, Sasaki M, Doi M. Conformational restraints induced by modification of configuration of threonine and oxazoline residues in ascidiacyclamide analogues. ACTA ACUST UNITED AC 2006. [DOI: 10.1111/j.1747-0285.2006.00345.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [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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39
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Doi M, Asano A, Yoshida H, Inouguchi M, Iwanaga K, Sasaki M, Katsuya Y, Taniguchi T, Yamamoto D. Structure and property of self-assemble valinyl bolaform amides having different chirality. ACTA ACUST UNITED AC 2005; 66:181-9. [PMID: 16138856 DOI: 10.1111/j.1399-3011.2005.00286.x] [Citation(s) in RCA: 9] [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] [Indexed: 11/29/2022]
Abstract
Bolaform amides were designed from N,N'-bis(carboethoxy-L-valinyl)-diaminoethane (1) by linking t-butyloxycarbonyl-valine through ethylenediamine (EDA) to enable spectroscopic and X-ray diffraction analyses. N,N'-Bis(Boc-L-valinyl)-diaminoethane (2) and N,N'-bis(Boc-D-valinyl)-diaminoethane (3) were composed of L-Val and D-Val, respectively. N-(Boc-L-valinyl)-N'-(Boc-D-valinyl)-diaminoethane (4) was composed of both L-Val and D-Val, and was achiral (meso-peptide). Peptide 5 was a 1:1 mixture of 2 and 3, and was also achiral (racemate). These peptides mediated gelation of corn oil at a concentration of approximately 1%. Within crystals, the peptides formed beta-sheet ribbons, but differences were observed in hydrogen-bonding patterns and side-chain arrangements. These differences were also deduced from temperature dependence of amide protons. Force-field calculations based on the crystal structures indicated that association of beta-sheet ribbons had energy benefits, and it was assumed that molecular aggregation progressed spontaneously. These structural studies indicated the chirality of amino acids affected for the properties of bolaform amides.
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Affiliation(s)
- M Doi
- Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan.
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Doi M, Ikeda K. Postanesthetic respiratory depression in humans: a comparison of sevoflurane, isoflurane and halothane. J Anesth 2005; 1:137-42. [PMID: 15235849 DOI: 10.1007/s0054070010137] [Citation(s) in RCA: 10] [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] [Subscribe] [Scholar Register] [Received: 05/07/1987] [Accepted: 05/29/1987] [Indexed: 11/25/2022]
Abstract
The postanesthetic respiratory depression with sevoflurane, isoflurane and halothane was studied in twenty-one patients. They were divided into three groups of seven patients each. One group underwent sevoflurane anesthesia, another group isoflurane and the third group halothane. Following extubation, the decrease in blood concentration of the anesthetic agent was most rapid with sevoflurane and slowest with halothane. Twenty minutes following extubation, resting ventilation and ventilatory response to carbon dioxide returned to the preanesthetic state with sevoflurane and isoflurane anesthesia. With halothane anesthesia, however, the depressive respiratory effects of halothane remained; depressed ventilatory response to carbon dioxide, decreased tidal volume and increased respiratory frequency. Although halothane has been reported to have the least depressive respiratory effect of the three, its elimination was slowest. Thus the respiratory effects of halothane persisted up to and past the twenty minute mark, far longer than with sevoflurane or isoflurane.
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Affiliation(s)
- M Doi
- Department of Anesthesiology, Hamamatsu University School of Medicine, Hamamatsu, Japan
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Uozaki H, Fukayama M, Nakagawa K, Ishikawa T, Misawa S, Doi M, Maekawa K. The pathology of multi-organ involvement: two autopsy cases from the Tokai-mura criticality accident. Br J Radiol 2005. [DOI: 10.1259/bjr/70312032] [Citation(s) in RCA: 24] [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: 11/05/2022] Open
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Hirano S, Okamoto K, Doi M, Kamura O, Inagaki M, Aono Y. Microstructure of the interface in magnesium alloy to aluminium alloy dissimilar joints produced by friction stir welding. ACTA ACUST UNITED AC 2004. [DOI: 10.1533/wint.2004.3319] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sakashita T, Doi M, Nakamura Y, Iida T. A case study of radon-222 transport from continental North-East Asia to the Japanese islands in winter by numerical analysis. J Environ Radioact 2004; 72:245-257. [PMID: 14972408 DOI: 10.1016/s0265-931x(03)00176-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2002] [Revised: 06/18/2003] [Accepted: 06/19/2003] [Indexed: 05/24/2023]
Abstract
A case study of the regional transport ( approximately 3000 km) of radon-222 ((222)Rn) from continental North-East Asia to the Japanese islands was performed by numerical analysis using five separate source areas (South, Middle and North China, Russia and Korea), while a seasonal northwest wind blew over the Japan Sea. The results for three periods (Term I: 16-18, Term II: 22-25 and Term III: 27-28 in December 1990) were compared with concentrations measured at the Kanazawa site (near the coast of the Japan Sea facing the seasonal wind) and the Nagoya site (overland and downwind on the shores of the Pacific Ocean). Most of the (222)Rn at the Kanazawa site was calculated to come from North China and Korea in Term I, Middle China, North China, and Korea in Term II, and Russia and Korea in Term III. The considerable differences in the origins of (222)Rn emanated from the continent were estimated between Terms I, II and III, even though the similar northwest wind was dominant over the Japan Sea. A contour line analysis indicated movement of (222)Rn emanated from Middle China in a northerly direction first and then a southeasterly direction, resulting from low pressure. The results suggest that the low-pressure systems play an important role in the transport of (222)Rn in North-East Asia.
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Affiliation(s)
- T Sakashita
- Japan Atomic Energy Research Institute, 1233 Watanuki-machi, Takasaki-shi, Gumma 370-1292, Japan.
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Nakagawa Y, Robert V, Kawarazaki J, Epping W, Smith MT, Poot GA, Mizuguchi I, Kanbe T, Doi M. Recurrent isolation of an uncommon yeast,Candidapararugosa, from a sarcoma patient. Med Mycol 2004; 42:267-71. [PMID: 15285058 DOI: 10.1080/13693780310001597674] [Citation(s) in RCA: 10] [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] [Indexed: 10/26/2022] Open
Abstract
A yeast was repeatedly isolated from the saliva of a sarcoma patient. A relatively uncommon species, Candida maris, was identified based on the API 20C profile. The yeast species most frequently obtained from the patient's mother and from clinic staff was Candida albicans. A comparison of the yeast obtained from the patient with the type strain of C. maris strongly suggested that the former was not representative of C. maris. Analysis of partial ribosomal DNA sequences of the patient strain and from the type strain of C. maris showed that the two are phylogenetically not closely related. The patient strain was very close to Candida pararugosa, a relatively uncommon asporogenous yeast. DNA reassociation studies among C. pararugosa and patient isolates showed that they were conspecific. We could not determine the source of the yeast infection. This case will alert hospital staff to be aware of the possibility of unexpected environmental microorganisms as causes of infections, colonizations and persistent environmental contamination events in immunocompromised patients.
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Affiliation(s)
- Y Nakagawa
- Laboratory of Medical Mycology Institute of Disease Mechanism and Control, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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Inoue Y, Hagi A, Miki S, Yoshinaga N, Doi M, Doi K, Miyata K. 2P-0550 Possible mechanisms for the antiobesity effects of a novel compound OT-13540. ATHEROSCLEROSIS SUPP 2003. [DOI: 10.1016/s1567-5688(03)90689-1] [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]
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Sakashita T, Doi M, Yasuda H, Takeda H, Fuma S, Nakamura Y, Häder DP. High-energy carbon ion irradiation and the inhibition of negative gravitaxis in Euglena gracilis Z. Int J Radiat Biol 2002; 78:1055-60. [PMID: 12456293 DOI: 10.1080/09553000210166592] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
PURPOSE To study the effects of high-energy carbon ion irradiation on negative gravitaxis in the photosynthetic flagellate Euglena gracilis strain Z in a dose-response-dependent manner. MATERIALS AND METHODS Cells were exposed to 290 MeV amu(-1) carbon ion from the Heavy Ion Medical Accelerator in Chiba (HIMAC) at 12 doses (0, 1, 5, 7.5, 10, 15, 20, 50, 75, 100, 150, 200 Gy for water). r was used to quantify negative gravitaxis observed in a recently developed biomonitoring system. RESULTS Negative gravitaxis of Euglena was significantly affected by irradiation at a dose >7.5 Gy, 28 h after irradiation. Negative gravitaxis recovered after a few days. The rising phase of r during the first 30 s of orientation was independent of irradiation dose. The recovery mechanism itself was damaged by 290 MeV amu(-1) carbon ions at a dose >50 Gy. CONCLUSIONS The results indicate that negative gravitaxis in Euglena may be affected by the radiation experienced during a space experiment especially during the occurrence of solar flares. The analyses of time needed to reorient to the gravitational vector suggest that the steering control of the flagellar apparatus is affected by exposure to the 290 MeV amu(-1) carbon ion irradiation, resulting in an altered beating pattern of a flagellum and/or changes of the cell form during reorientation.
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Affiliation(s)
- T Sakashita
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan.
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Sakashita T, Doi M, Nakamura Y, Fuma S, Ishii N, Takeda H. Gamma-irradiation effect: variation of photosynthetic activity of Euglena. Biomed Environ Sci 2002; 15:261-267. [PMID: 12500667] [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: 05/24/2023]
Abstract
OBJECTIVE To study the effects of gamma-ray irradiation on carbon fixation (Specific production rate: SPR), CO2 utilization efficiency (CUE) and electron transfer rate (ETR) in the photosynthetic flagellate Euglena gracilis strain Z in a dose-response dependent manner. METHODS Euglena cells were cultured in an inorganic nutrient medium containing ammonium chloride or proteose peptone. Cells were exposed to gamma-ray at 5 doses (0, 100, 250, 350, 500 Gy for water). Five days after irradiation, three photosynthetic activities were measured. SPR, which is a carbon uptake rate per unit carbon mass, was determined by 13C tracer methodology. CUE was evaluated using a relation of carbon isotope fractionation in Calvin cycle. ETR in photosystem II (PS II) was measured by a chlorophyll fluorescence analysis. RESULTS Even at a dose of 500 Gy, 80% of ETR of the non-irradiated control (0 Gy) was sustained, while SPR and CUE were about half the level in the non-irradiated control at 500 Gy. Furthermore, the dose response of ETR was considerably different from the others. CONCLUSION Our findings suggest that not only PS II but also the Calvin cycle in the photosynthetic system is affected by gamma ray irradiation.
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Affiliation(s)
- T Sakashita
- National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage, Chiba 263-8555, Japan.
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Ando R, Doi M, Yamauchi K, Chida Y, Ida T, Endo K, Yanagi H, Tomura S. Association of beta-fibrinogen and factor VII polymorphism with plasma fibrinogen and factor VII levels, and no association of PAI-1 polymorphism with plasma PAI-1 levels in hemodialysis patients. Clin Nephrol 2002; 58:25-32. [PMID: 12141403 DOI: 10.5414/cnp58025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [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: 11/18/2022] Open
Abstract
AIMS Recent studies have stressed the roles of genetic factors on the plasma levels of hemostatic markers and on cardiovascular complications. We investigated the association of DNA polymorphisms for beta-fibrinogen, factor VII, and PAI-1 with plasma levels of these factors and with ischemic heart disease (IHD) and cerebral infarction (CI) in patients undergoing hemodialysis (HD). METHODS beta-fibrinogen G/A-455, factor VII R353Q and PAI-1 4G/5G polymorphisms were determined by PCR-RFLP in 149 HD patients and in 100 controls. The plasma levels of fibrinogen, factor VII and PAI-1 were also measured. RESULTS The allele frequencies and the genotype frequencies of these 3 polymorphisms were not different between HD patients and controls. In HD patients, plasma fibrinogen levels were significantly lower in the GG genotype than in the GA genotype, and plasma factor VII activity was significantly higher in the RR genotype than in the RQ genotype. Multiple regression analysis disclosed that CRP and beta-fibrinogen polymorphism were the significant determinants of fibrinogen levels. Plasma PAI-1 levels were not different among the 3 genotypes. The frequency of the A-455 allele was significantly higher in HD patients with CI than in those without CI, and the genotype distribution for beta-fibrinogen differed significantly between the 2 groups. Between the same 2 groups, however, significant differences were found neither in the frequency of the 353Q or 4G allele nor in the genotype distribution for factor VII and PAI-1. No significant differences in the frequency of the G-455, 353Q or 4G alleles, or in the genotype distribution for beta-fibrinogen, factor VII and PAI-1 were observed between patients with IHD and those without IHD. Multiple logistic regression analysis demonstrated that neither polymorphism was associated with CI or IHD. CONCLUSIONS In HD patients, beta-fibrinogen and factor VII polymorphisms affected plasma levels of fibrinogen and factor VII, respectively. Beta-fibrinogen polymorphism was not an independent but a possible risk factor for CI in HD patients. Further study will be needed to confirm the precise role of 5-fibrinogen polymorphisms in the pathogenesis of CI in HD patients.
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Affiliation(s)
- R Ando
- Department of Internal Medicine, Nakano General Hospital, Tokyo, Japan.
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