1
|
Inui S, Ueda Y, Ono S, Ohira S, Isono M, Nitta Y, Murata S, Miyazaki M, Teshima T. EP-1747 In vivo dosimetry with electronic portal imaging device in VMAT for prostate cancer. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)32167-x] [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: 11/29/2022]
|
2
|
Takeuchi S, Kagabu M, Nagasawa T, Omi H, Nitta Y, Itamochi H, Sugiyama T. Phase 1/2 trials of peptides cocktail vaccine for resistant cervical and ovarian cancer: Qol analysis. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx372.040] [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
|
3
|
Ma ZH, Cheng HT, Nitta Y, Aoki N, Chen Y, Chen HX, Ohsugi R, Lyu WY. Differences in Viscosity of Superior and Inferior Spikelets of Japonica Rice with Various Percentages of Apparent Amylose Content. J Agric Food Chem 2017; 65:4237-4246. [PMID: 28358983 DOI: 10.1021/acs.jafc.7b00048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Viscosity, a crucial characteristic for rice palatability, is affected by endosperm characters. We compared correlations between differences in viscosity of japonica rice with various palatability and endosperm characters. Changes in apparent amylose and protein contents (AAC% and PC%, respectively) and amylopectin side-chain distribution and the relationship of these traits with palatability were investigated in superior and inferior spikelets of good cultivars with low amylose content from Hokkaido and common cultivars from northeastern Japan, using rapid visco analyzer characteristics and rice-grain microstructures. Significant differences occurred in PC%, AAC%, breakdown, setback, peak time, and pasting temperature of different cultivars and grain positions. Amylopectin components showed remarkable differences in grain surfaces, surface layers, and section structure between the grain varieties. Hokkaido cultivars showed better viscosity than northeastern cultivars, particularly initial stage grains. Correlation analysis indicated viscosity was mainly AAC%-dependent, whereas differences in endosperm characteristics between spikelet positions were mainly due to grain-filling temperature.
Collapse
Affiliation(s)
- Zhao-Hui Ma
- Rice Research Institute of Shenyang Agricultural University, Key Laboratory of Northern Japonica Rice Genetics and Breeding, Ministry of Education and Liaoning Province, Key Laboratory of Northeast Rice Biology and Genetics and Breeding, Ministry of Agriculture , Shenyang, China 110866
| | - Hai-Tao Cheng
- Rice Research Institute of Shenyang Agricultural University, Key Laboratory of Northern Japonica Rice Genetics and Breeding, Ministry of Education and Liaoning Province, Key Laboratory of Northeast Rice Biology and Genetics and Breeding, Ministry of Agriculture , Shenyang, China 110866
| | - Y Nitta
- The College of Agriculture, Ibaraki University Ami , Inashiki, Ibaraki 300-0393, Japan
| | - Naohiro Aoki
- Graduate School of Agricultural and Life Sciences, The University of Tokyo , 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Yun Chen
- Rice Research Institute of Shenyang Agricultural University, Key Laboratory of Northern Japonica Rice Genetics and Breeding, Ministry of Education and Liaoning Province, Key Laboratory of Northeast Rice Biology and Genetics and Breeding, Ministry of Agriculture , Shenyang, China 110866
| | - Heng-Xue Chen
- Rice Research Institute of Shenyang Agricultural University, Key Laboratory of Northern Japonica Rice Genetics and Breeding, Ministry of Education and Liaoning Province, Key Laboratory of Northeast Rice Biology and Genetics and Breeding, Ministry of Agriculture , Shenyang, China 110866
| | - Ryu Ohsugi
- Graduate School of Agricultural and Life Sciences, The University of Tokyo , 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Wen-Yan Lyu
- Rice Research Institute of Shenyang Agricultural University, Key Laboratory of Northern Japonica Rice Genetics and Breeding, Ministry of Education and Liaoning Province, Key Laboratory of Northeast Rice Biology and Genetics and Breeding, Ministry of Agriculture , Shenyang, China 110866
| |
Collapse
|
4
|
Ogata H, Saito M, Tsuneizumi M, Kutomi G, Hosoya K, Kawai Y, Sugizaki K, Katsumata N, Senuma K, Kitabatake T, Suda M, Uomori T, Miura K, Kurata M, Nitta Y, Yonemoto N, Matsuoka J. Abstract P5-11-03: Difference between 1st and 2nd generation serotonin receptor antagonists in triplet antiemetic therapy for highly emetogenic chemotherapy in breast cancer patients – according to recent multi-institutional double-blind randomized clinical research on the AC regimen. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p5-11-03] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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
<Background>
The information presented herein extends our recent study of TTT (Trial for Triplet Antiemetic Therapy).
One of our main clinical questions has been whether a 2nd generation serotonin receptor antagonist (5-HT3ra) would be superior to 1st generation 5-HT3ra when administering triplet antiemetic therapy for the prevention of chemotherapy induced nausea & vomiting (CINV), since a prior Japanese trial demonstrated palonosetron to be superior to granisetron for controlling the delayed phase of CINV induced by highly emetogenic chemotherapy (HEC) and to doublet antiemetic therapy including dexamethasone for anthracycline and cyclophosphamide containing regimens (AC).
<Objectives>
In this study, we assessed the efficacies of 1st and 2nd generation 5-HT3ra agents for use as triplet antiemetic therapy for AC, by monitoring CINV, focusing especially daily CR in the delayed phase.
<Material and method>
Between 2012 and 2015, 491 women with breast cancer receiving AC were recruited from 11 institutions in Japan, and randomly assigned to either single-dose palonosetron (0.75mg) or granisetron (40μg/kg) prior to chemotherapy on day 1, both with dexamethasone (9.9 mg intravenously) and aprepitant (125mg orally) on day 1 followed by additional doses (80mg orally) on days 2 and 3. Age, institution and habitual alcohol intake were used as stratification factors. The primary endpoint was a complete response (CR). Statistical analysis was done by Mantel-Haenszel Method. This trial was registered with UMIN000007882.
<Results>
All 491 patients were included in efficacy analyses (ITT): 246 patients in the palonosetron group and 245 in the granisetron group. We previously reported that the difference in CR during the delayed phase, i.e. 24 hours after the administration of AC, did not reach statistical significance (53.8% vs 58.5%) in MASCC 2016. However, daily CR in the palonosetron group was much higher than that in the granisetron group after 48 hours.
<Conclusions>
Palonosetron showed better efficacy in controlling CINV during the late period of the delayed phase, i.e. 48 hours after AC administration, than granisetron as triplet antiemetic therapy for AC.
<Considerations>
The pattern of CINV reportedly shows two peaks including an acute phase caused by serotonin and a delayed phase caused by substance P, though the pattern of CINV with triplet antiemetic therapy administration might be different if the suppression of each of these peaks were to be achieved more efficiently. CINV may not be divided into two phases in the future, or the borderline area between the acute and delayed phases may require revision. The analysis of the late period of the delayed phase was ad hoc in this trial. However, when conducting studies related to CINV, it might be worthwhile to revise the borderline area between the two phases of CINV to facilitate elucidating the mechanisms underlying this potentially debilitating side effect of chemotherapy.
Citation Format: Ogata H, Saito M, Tsuneizumi M, Kutomi G, Hosoya K, Kawai Y, Sugizaki K, Katsumata N, Senuma K, Kitabatake T, Suda M, Uomori T, Miura K, Kurata M, Nitta Y, Yonemoto N, Matsuoka J. Difference between 1st and 2nd generation serotonin receptor antagonists in triplet antiemetic therapy for highly emetogenic chemotherapy in breast cancer patients – according to recent multi-institutional double-blind randomized clinical research on the AC regimen [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P5-11-03.
Collapse
Affiliation(s)
- H Ogata
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - M Saito
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - M Tsuneizumi
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - G Kutomi
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - K Hosoya
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - Y Kawai
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - K Sugizaki
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - N Katsumata
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - K Senuma
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - T Kitabatake
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - M Suda
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - T Uomori
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - K Miura
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - M Kurata
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - Y Nitta
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - N Yonemoto
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| | - J Matsuoka
- Toho University Ohmori Medical Center, Tokyo, Japan; Juntendo University, Tokyo, Japan; Shizuoka General Hospital, Shizuoka, Japan; Sapporo Medical University, Sapporo, Japan; Tottori University, Yonago, Japan; Tokyo Medical University, Tokyo, Japan; Ohme Municipal General Hospital, Ohme, Japan; Nippon Medical School Musashi Kosugi Hospital, Tokyo, Japan; Juntendo University Shizuoka Branch Hospital, Izunagaoka, Japan; Juntendo University Urayasu Hospital, Urayasu, Japan; Juntendo University Nerima Hospital, Tokyo, Japan
| |
Collapse
|
5
|
Kuré K, Matsuura H, Imagawa T, Nitta Y. Experimentelle und pathologische Studien über die progressive Muskelatrophie. ACTA ACUST UNITED AC 2016. [DOI: 10.1007/bf02622794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
6
|
Miyata K, Odanaka H, Nitta Y, Shimoji S, Kanehira T, Kawanami M, Fujisawa T. Music before Dental Surgery Suppresses Sympathetic Activity Derived from Preoperative Anxiety: A Randomized Controlled Trial. JDR Clin Trans Res 2016; 1:153-162. [PMID: 30931796 DOI: 10.1177/2380084416650613] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to estimate the relieving effect of music intervention on preoperative anxiety by using heart rate variability (HRV) analysis. In this randomized controlled trial, 86 adult patients were scheduled to undergo impacted tooth extraction under intravenous sedation and local anesthesia and were classified as either fearful or nonfearful based on a questionnaire. Thereafter, the patients were subdivided into 2 groups: those who listened to music from the time that they arrived at the outpatient clinic until immediately before entering the operating room and those who did not listen to music. The effect of music intervention was evaluated by assessing 1) the low-frequency/high-frequency ratio of HRV, in which positive changes indicate increased sympathetic nervous activity, and 2) the coefficient of component variance for high frequency, in which positive changes indicate increased parasympathetic nervous activity, assessed by means of HRV analysis. Subjective preoperative anxiety was evaluated on a visual analog scale. For fearful patients, the mean magnitude of low-frequency/high frequency changes from baseline among those who listened to music was significantly lower as compared with those who did not listen to music (in the private room: -1.45 ± 1.88 vs. 1.05 ± 1.88, P = 0.0096, 95% confidence interval of effect size = -4.52 to -0.48, Cohen's d = -0.75; in the operating waiting room: -2.18 ± 2.39 vs. -0.10 ± 3.37, P = 0.011, 95% confidence interval of effect size = -3.94 to -0.22, Cohen's d = -0.71, respectively). Visual analog scale scores were also significantly different. Coefficient of component variance for high frequency and heart rate did not differ significantly between the 2 groups. From the perspective of autonomic nervous activity, music intervention is useful for relieving anxiety in patients with dental fear before they enter a dental outpatient operating room. Music intervention may relieve anxiety by reducing sympathetic nervous activity, while parasympathetic nervous activity is not involved (UMIN000016882). Knowledge Transfer Statement: The results of this study revealed that music intervention is useful for clinicians when planning preoperative anxiety management of patients with dental fear who undergo impacted tooth extraction under intravenous sedation and local anesthesia. As a bridging intervention, music intervention enables stress management to continue uninterrupted from the patient's arrival at the dental outpatient clinic to intravenous sedation until completion of the dental surgery. With consideration of cost-effectiveness, absence of adverse physical effects, immediate effect, safety in terms of not using drugs, and lack of concerns about recovery, this information could lead to more appropriate decisions regarding anxiety management in dentistry.
Collapse
Affiliation(s)
- K Miyata
- 1 Department of Dental Anesthesiology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - H Odanaka
- 2 Department of Periodontology and Endodontology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - Y Nitta
- 1 Department of Dental Anesthesiology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - S Shimoji
- 2 Department of Periodontology and Endodontology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - T Kanehira
- 3 Department of Preventive Dentistry, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - M Kawanami
- 2 Department of Periodontology and Endodontology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| | - T Fujisawa
- 1 Department of Dental Anesthesiology, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan
| |
Collapse
|
7
|
Ohi K, Matsuda Y, Shimada T, Yasuyama T, Oshima K, Sawai K, Kihara H, Nitta Y, Okubo H, Uehara T, Kawasaki Y. Structural alterations of the superior temporal gyrus in schizophrenia: Detailed subregional differences. Eur Psychiatry 2016; 35:25-31. [PMID: 27061374 DOI: 10.1016/j.eurpsy.2016.02.002] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Revised: 02/05/2016] [Accepted: 02/06/2016] [Indexed: 10/22/2022] Open
Abstract
BACKGROUND Reduced gray matter volumes in the superior temporal gyrus (STG) have been reported in patients with schizophrenia. Such volumetric abnormalities might denote alterations in cortical thickness, surface area, local gyrification or all of these factors. The STG can be anatomically divided into five subregions using automatic parcellation in FreeSurfer: lateral aspect of the STG, anterior transverse temporal gyrus of Heschl gyrus (HG), planum polare (PP) of the STG, planum temporale (PT) of the STG and transverse temporal sulcus. METHODS We acquired magnetic resonance imaging (MRI) 3T scans from 40 age- and sex-matched patients with schizophrenia and 40 healthy subjects, and the scans were automatically processed using FreeSurfer. General linear models were used to assess group differences in regional volumes and detailed thickness, surface area and local gyrification. RESULTS As expected, patients with schizophrenia had significantly smaller bilateral STG volumes than healthy subjects. Of the five subregions in the STG, patients with schizophrenia showed significantly and marginally reduced volumes in the lateral aspect of the STG and PT of the STG bilaterally compared with healthy subjects. The volumetric alteration in bilateral lateral STG was derived from both the cortical thickness and surface area but not local gyrification. There was no significant laterality of the alteration in the lateral STG between patients and controls and no correlation among the structures and clinical characteristics. CONCLUSIONS These findings suggest that of five anatomical subregions in the STG, the lateral STG is one of the most meaningful regions for brain pathophysiology in schizophrenia.
Collapse
Affiliation(s)
- K Ohi
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan.
| | - Y Matsuda
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan; Project Research Center, Kanazawa Medical University, Ishikawa, Japan.
| | - T Shimada
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - T Yasuyama
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - K Oshima
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - K Sawai
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - H Kihara
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - Y Nitta
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - H Okubo
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - T Uehara
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| | - Y Kawasaki
- Department of Neuropsychiatry, Kanazawa Medical University, Ishikawa, Japan
| |
Collapse
|
8
|
Nakaoka K, Hashimoto S, Kawabe N, Nitta Y, Murao M, Nakano T, Shimazaki H, Kan T, Takagawa Y, Ohki M, Kurashita T, Takamura T, Nishikawa T, Ichino N, Osakabe K, Yoshioka K. PNPLA3 I148M associations with liver carcinogenesis in Japanese chronic hepatitis C patients. Springerplus 2015; 4:83. [PMID: 25713769 PMCID: PMC4334918 DOI: 10.1186/s40064-015-0870-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 02/03/2015] [Indexed: 12/15/2022]
Abstract
Aim To investigate associations between patatin-like phospholipase domain-containing 3 (PNPLA3) genotypes and fibrosis and hepatocarcinogenesis in Japanese chronic hepatitis C (CHC) patients. Methods Two hundred and thirty-one patients with CHC were examined for PNPLA3 genotypes, liver stiffness measurements (LSM), and hepatocellular carcinoma (HCC) from May 2010 to October 2012 at Fujita Health University Hospital. The rs738409 single nucleotide polymorphism (SNP) encoding for a functional PNPLA3 I148M protein variant was genotyped using a TaqMan predesigned SNP genotyping assay. LSM was determined as the velocity of a shear wave (Vs) with an acoustic radiation force impulse. Vs cut-off values for cirrhosis were set at 1.55 m/s. We excluded CHC patients with a sustained virological response or relapse after interferon treatment. Results PNPLA3 genotypes were CC, CG, and GG for 118, 72, and 41 patients, respectively. Multivariable logistic regression analysis selected older age (OR = 1.06; 95% CI: 1.03–1.09; p < 0.0001), higher body mass index (BMI) (OR= 1.12; 95% CI: 1.03–1.22; p = 0.0082), and PNPLA3 genotype GG (OR = 2.07; 95% CI: 0.97–4.42; p = 0.0599) as the factors independently associated with cirrhosis. When 137 patients without past history of interferon treatment were separately assessed, multivariable logistic regression analysis selected older age (OR = 1.05; 95% CI: 1.02–1.09; p = 0.0034), and PNPLA3 genotype GG (OR = 3.35; 95% CI: 1.13–9.91; p = 0.0291) as the factors independently associated with cirrhosis. Multivariable logistic regression analysis selected older age (OR = 1.12; 95% CI: 1.07–1.17; p < 0.0001), PNPLA3 genotype GG (OR = 2.62; 95% CI: 1.15–5.96; p = 0.0218), and male gender (OR = 1.83; 95% CI: 0.90–3.71); p = 0.0936) as the factors independently associated with HCC. Conclusion PNPLA3 genotype I148M is one of risk factors for developing HCC in Japanese CHC patients, and is one of risk factors for progress to cirrhosis in the patients without past history of interferon treatment.
Collapse
Affiliation(s)
- Kazunori Nakaoka
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Senju Hashimoto
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Naoto Kawabe
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Yoshifumi Nitta
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Michihito Murao
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Takuji Nakano
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Hiroaki Shimazaki
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Toshiki Kan
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Yuka Takagawa
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Masashi Ohki
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Takamitsu Kurashita
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Tomoki Takamura
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Toru Nishikawa
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| | - Naohiro Ichino
- Faculty of Medical Technology, School of Health Sciences, Fujita Health University, Toyoake, Aichi 470-1192 Japan
| | - Keisuke Osakabe
- Faculty of Medical Technology, School of Health Sciences, Fujita Health University, Toyoake, Aichi 470-1192 Japan
| | - Kentaro Yoshioka
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University, 1-98 Dengakugakubo, Kutsukakecho, Toyoake, Aichi 470-1192 Japan
| |
Collapse
|
9
|
Nishikawa T, Hashimoto S, Kawabe N, Harata M, Nitta Y, Murao M, Nakano T, Mizuno Y, Shimazaki H, Kan T, Nakaoka K, Takagawa Y, Ohki M, Ichino N, Osakabe K, Yoshioka K. Factors correlating with acoustic radiation force impulse elastography in chronic hepatitis C. World J Gastroenterol 2014; 20:1289-1297. [PMID: 24574802 PMCID: PMC3921510 DOI: 10.3748/wjg.v20.i5.1289] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 09/28/2013] [Accepted: 11/13/2013] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the factors other than fibrosis stage correlating with acoustic radiation force impulse (ARFI) elastograpy in chronic hepatitis C.
METHODS: ARFI elastograpy was performed in 108 consecutive patients with chronic hepatitis C who underwent a liver biopsy. The proportion of fibrosis area in the biopsy specimens was measured by computer-assisted morphometric image analysis.
RESULTS: ARFI correlated significantly with fibrosis stage (β = 0.1865, P < 0.0001) and hyaluronic acid levels (β = 0.0008, P = 0.0039) in all patients by multiple regression analysis. Fibrosis area correlated significantly with ARFI by Spearman’s rank correlation test but not by multiple regression analysis. ARFI correlated significantly with body mass index (BMI) (β = -0.0334, P = 0.0001) in F 0 or F 1, with γ-glutamyltranspeptidase levels (β = 0.0048, P = 0.0012) in F 2, and with fibrosis stage (β = 0.2921, P = 0.0044) and hyaluronic acid levels (β = 0.0012, P = 0.0025) in F 3 or F 4. The ARFI cutoff value was 1.28 m/s for F≥ 2, 1.44 m/s for F≥ 3, and 1.73 m/s for F 4.
CONCLUSION: ARFI correlated with fibrosis stage and hyaluronic acid but not with inflammation. ARFI was affected by BMI, γ-glutamyltranspeptidase, and hyaluronic acid in each fibrosis stage.
Collapse
|
10
|
Takagawa Y, Kawabe N, Hashimoto S, Harata M, Murao M, Nitta Y, Nakano T, Shimazaki H, Mizuno Y, Kan T, Nakaoka K, Oki M, Yoshioka K. A case of multiple hepatic MALT lymphoma with cirrhosis related to hepatitis C virus. Kanzo 2014; 55:274-283. [DOI: 10.2957/kanzo.55.274] [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] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
|
11
|
Kamada M, Kawamoto S, Motoyoshi N, Saiki Y, Oda K, Akasaka J, Nitta Y, Akimoto H, Tabayashi K. [Is emergency aortic root replacement combined with arch replacement safe?]. Kyobu Geka 2012; 65:347-356. [PMID: 22569490] [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: 05/31/2023]
Abstract
BACKGROUND Aortic root replacement (ARR) combined with aortic arch replacement (AAR) is an invasive procedure even in elective cases. Nevertheless, such combined operations are often mandatory in acute type A aortic dissection. We examined whether emergency operation might have further incremental risks compared with elective surgery in this type of operations. METHODS Forty-six cases of ARR combined with AAR were divided into 2 groups, the emergency (EM) group and the elective (EL) group. The EM group consisted of 10 cases of acute type A aortic dissection, whereas the EL group of 36:23 of chronic aortic dissection and 13 of true aneurysm. RESULTS There were no statistical differences between the 2 groups in the durations of aortic crossclamp, selective cerebral perfusion and cardiopulmonary bypass. The incidences in the EM and EL groups were as follows:in-hospital death; 0 vs 3( 8%), respiratory failure; 4 (40%) vs 14 (39%), renal failure; 0 vs 6 (17%), IABP requirement; 1 (10%) vs 3 (8%), and cerebral infarction; 0 vs 1 (3%), respectively. CONCLUSION Early surgical results of emergency ARR combined with AAR were almost equal to those in elective surgery.
Collapse
Affiliation(s)
- M Kamada
- Department of Cardiovascular Surgery, School of Medicine, Tohoku University, Sendai, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Osakabe K, Ichino N, Nishikawa T, Sugiyama H, Kato M, Kitahara S, Hashimoto S, Kawabe N, Harata M, Nitta Y, Murao M, Nakano T, Shimazaki H, Arima Y, Suzuki K, Yoshioka K. Reduction of liver stiffness by antiviral therapy in chronic hepatitis B. J Gastroenterol 2011; 46:1324-34. [PMID: 21822591 DOI: 10.1007/s00535-011-0444-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [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] [Received: 04/04/2011] [Accepted: 07/07/2011] [Indexed: 02/04/2023]
Abstract
BACKGROUND Liver stiffness (LS) has been reported to correlate with fibrosis stage (F). The correlation between LS and fibrosis stage and the reduction of LS by antiviral therapy were examined in patients with hepatitis B infection. METHODS LS was measured by FibroScan in 212 patients infected with hepatitis B virus. Liver biopsies were done in 51 patients. Changes of LS were assessed in 29 patients treated with nucleotide or nucleoside analogs and 52 patients without antiviral therapy. RESULTS LS was significantly correlated with fibrosis stage (ρ = 0.686, P < 0.0001). The optimal cut-off values of LS were 7.1 kPa for F ≥ 2, 10.7 kPa for F ≥ 3, and 16.0 kPa for F4. LS was significantly reduced by antiviral therapy, from 12.9 (range 6.2-17.9) kPa to 6.6 (4.4-10.3) kPa measured at an interval of 512 (range 366-728) days (P < 0.0001). Eleven of 19 (58%) patients with baseline fibrosis stages of F3-4 deduced from LS had 2-point or greater reductions of deduced stage at the last LS measurement. The change ratio of hyaluronic acid (P = 0.0390) was associated with a 2-point or greater reduction of deduced fibrosis stage. Without antiviral therapy, LS tended to increase, increasing from 6.1 (range 3.9-8.5) kPa to 6.3 (range 4.4-9.7) kPa at an interval of 422 (range 358-709) days (P = 0.0682). CONCLUSIONS LS was significantly correlated with fibrosis stage in patients with chronic hepatitis B. The reduction of LS by antiviral therapy was significantly correlated with the reduction of hyaluronic acid. Thus, we conclude that LS can be useful to assess the progression and regression of liver fibrosis stage noninvasively.
Collapse
Affiliation(s)
- Keisuke Osakabe
- School of Health Sciences, Fujita Health University, Aichi, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Kuratsukuri K, Nishihara C, Nitta Y, Tanaka T, Natani T, Harimoto K, Nishikawa K. UP-02.214 New MRI Pre-planning for Prostate Brachytherapy. Urology 2011. [DOI: 10.1016/j.urology.2011.07.1032] [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: 11/30/2022]
|
14
|
Harata M, Hashimoto S, Kawabe N, Nitta Y, Murao M, Nakano T, Arima Y, Shimazaki H, Ishikawa T, Okumura A, Ichino N, Osakabe K, Nishikawa T, Yoshioka K. Liver stiffness in extrahepatic cholestasis correlates positively with bilirubin and negatively with alanine aminotransferase. Hepatol Res 2011; 41:423-9. [PMID: 21435129 DOI: 10.1111/j.1872-034x.2011.00797.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [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: 12/18/2022]
Abstract
AIM Transient elastography is a non-invasive tool to measure liver stiffness (LS), which has been reported to correlate with stage of liver fibrosis. Extrahepatic cholestasis was reported to cause elevated LS, which is considered to be attributed to the increased hydrostatic pressure in the liver. In the present study, the correlation of LS with laboratory data was investigated in extrahepatic cholestasis. The change of LS after biliary drainage was also assessed. METHODS LS was measured in 29 patients with extrahepatic cholestasis due to carcinomas in 12 and non-neoplastic diseases of biliary tract or pancreas in 17. RESULTS In 15 patients, LS was 11.4 kPa or higher which suggested liver cirrhosis in chronic infection of hepatitis C virus. LS significantly correlated positively with serum bilirubin levels (r = 0.726, P < 0.0001) and negatively with serum aspartate aminotransferase (AST) levels (r = -0.481, P = 0.0082) and alanine aminotransferase (ALT) levels (r = -0.631, P = 0.0002). Biliary drainage led to a reduction of bilirubin by 13.5 to 0.9 mg/dL which was significantly correlated with a reduction of LS by 14.3 to 0.5 kPa (r = 0.524, P = 0.0257). CONCLUSION In extrahepatic cholestasis, the elevation of LS which is probably attributed to the increased hydrostatic pressure in the liver, correlates positively with the accumulation of bilirubin but negatively with damage of hepatocytes indicated by ALT levels. Further studies on the mechanism underlying the elevation of LS should be helpful to elucidate the pathogenesis of extrahepatic cholestasis.
Collapse
Affiliation(s)
- Masao Harata
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University Faculty of Medical Technology, School of Health Sciences Department of Clinical Laboratory, Fujita Health University Hospital, Toyoake Department of Medical Technology, Nagoya University School of Health Sciences, Nagoya Department of Gastroenterology, Kainan Hospital, Yatomi, Aichi, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Uchiyama K, Ino H, Hayashi K, Fujioka K, Takabatake S, Yokawa J, Namura M, Mizuno S, Tatami R, Kanaya H, Nitta Y, Michishita I, Hirase H, Ueda K, Aoyama T, Okeie K, Haraki T, Mori K, Araki T, Minamoto M, Oiwake H, Konno T, Sakata K, Kawashiri M, Yamagishi M. Impact of Severe Coronary Disease Associated or Not Associated with Diabetes Mellitus on Outcome of Interventional Treatment Using Stents: Results from HERZ (Heart Research Group of Kanazawa) Analyses. J Int Med Res 2011; 39:549-57. [DOI: 10.1177/147323001103900224] [Citation(s) in RCA: 6] [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] [Indexed: 11/15/2022] Open
Abstract
Percutaneous coronary intervention (PCI) using a drug-eluting stent (DES) leads to less re-stenosis than PCI using a bare metal stent (BMS), however there is still controversy whether use of a DES for severe coronary disease leads to an acceptable outcome in patients with diabetes mellitus (DM). In this study 8159 lesions were treated in 6739 patients (mean age 68.9 years) with coronary artery disease. Use of a DES significantly decreased the re-stenosis rate compared with BMS in both DM (9.6% versus 21.3%) and non-DM (9.5% versus 17.1%) patients. The re-stenosis rate was significantly higher in DM than in non-DM patients in the BMS group but not in the DES group. There was no statistically significant difference in event-free survival after stenting of patients with left main coronary artery (LMCA) disease between the BMS and DES groups. It was concluded that, compared with BMS, DES reduced re-stenosis in patients with DM, however, we advise careful treatment after using DES for severe coronary disease, including LMCA lesions, in patients with DM.
Collapse
Affiliation(s)
- K Uchiyama
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - H Ino
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - K Hayashi
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - K Fujioka
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - S Takabatake
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - J Yokawa
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - M Namura
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - S Mizuno
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - R Tatami
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - H Kanaya
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - Y Nitta
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - I Michishita
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - H Hirase
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - K Ueda
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - T Aoyama
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - K Okeie
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - T Haraki
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - K Mori
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - T Araki
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - M Minamoto
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - H Oiwake
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - T Konno
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - K Sakata
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - M Kawashiri
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| | - M Yamagishi
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medicine, Kanazawa, Japan
| |
Collapse
|
16
|
Ichino N, Osakabe K, Nishikawa T, Sugiyama H, Kato M, Kitahara S, Hashimoto S, Kawabe N, Harata M, Nitta Y, Murao M, Nakano T, Arima Y, Shimazaki H, Suzuki K, Yoshioka K. A new index for non-invasive assessment of liver fibrosis. World J Gastroenterol 2010; 16:4809-16. [PMID: 20939109 PMCID: PMC2955250 DOI: 10.3748/wjg.v16.i38.4809] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To construct and evaluate a new non-invasive fibrosis index for assessment of the stage of liver fibrosis.
METHODS: A new fibrosis index (Fibro-Stiffness index) was developed in 165 of 285 patients with chronic hepatitis C, and was validated in the other 120 patients where liver biopsy was performed. Its usefulness was compared with liver stiffness (LS) measured by FibroScan, the aminotransferase-to-platelet ratio index, the Forns index and the FibroIndex.
RESULTS: The Fibro-Stiffness index consists of LS, platelet count and prothrombin time. The values of the Fibro-Stiffness index differed significantly between neighboring fibrosis stages except F0-F1. The area under the receiver operating characteristics curves of the Fibro-Stiffness index for prediction of F ≥ 2 (0.90), F ≥ 3 (0.90) and F = 4 (0.92) in the estimation group and those for F ≥ 3 (0.93) and F = 4 (0.97) in the validation group were the highest among the 5 methods examined. The accuracy of the Fibro-Stiffness index had highest values for F ≥ 2, F ≥ 3 and F = 4 in both the estimation and validation groups. The diagnostic performance for F = 4 was improved by a combination of the Fibro-Stiffness index with serum hyaluronic acid level.
CONCLUSION: The Fibro-Stiffness index was constructed and validated. It showed superior diagnostic performance to other indices for F ≥ 2, 3 and 4.
Collapse
|
17
|
Arima Y, Kawabe N, Hashimoto S, Harata M, Nitta Y, Murao M, Nakano T, Shimazaki H, Kobayashi K, Ichino N, Osakabe K, Nishikawa T, Okumura A, Ishikawa T, Yoshioka K. Reduction of liver stiffness by interferon treatment in the patients with chronic hepatitis C. Hepatol Res 2010; 40:383-92. [PMID: 20236358 DOI: 10.1111/j.1872-034x.2009.00618.x] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [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: 12/23/2022]
Abstract
AIM To assess the regression of liver fibrosis after interferon (IFN) treatment in patients with chronic hepatitis C, liver stiffness (LS) was measured repeatedly and the factors associated with reduction of LS were assessed. METHODS LS was measured by transient elastography before treatment, at end of treatment (EOT), and 1 year and 2 years after EOT in 145 patients with chronic hepatitis C treated by IFN with or without ribavirin. RESULTS In the patients with sustained virological response (SVR) (n = 93) and relapsers (n = 28), LS significantly decreased at EOT (median, 5.4 [interquartile range, 4.0-8.6] kilopascals [kPa], P < 0.0001 and 6.8 [4.5-8.9] kPa, P = 0.0023) and 1 year after EOT (5.3 [4.2-7.0] kPa, P < 0.0001 and 6.8 [4.5-9.3] kPa, P = 0.0204) compared with baseline (8.0 [5.0-11.9] kPa and 10.6 [7.0-16.6] kPa). In SVR patients, LS significantly decreased 2 years after EOT (5.3 [4.1-6.3] kPa) compared with baseline (P < 0.0001) and LS at EOT (P = 0.0034). Two points or greater reduction of deduced stage at last LS measurement was observed in 78% of SVR patients, 59% of relapsers and 15% of patients with non-virological response whose pretreatment deduced stages were F3-F4. Fibrosis stage, hyaluronic acid levels, duration of treatment, response to treatment and alanine aminotransferase levels were associated with a 2-point or greater decrease of deduced fibrosis stage. CONCLUSION IFN treatment reduced LS in SVR patients and relapsers. Significant reduction of LS is associated with milder fibrosis stage, lower hyaluronic acid levels, longer IFN treatment, virological response of SVR or relapse and higher alanine aminotransferase levels.
Collapse
Affiliation(s)
- Yuko Arima
- Department of Liver, Biliary Tract and Pancreas Diseases, Fujita Health University,1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi 470-1192, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
18
|
Sato S, Saiki Y, Nitta Y, Kawamoto S, Kimura Y, Yamamoto M, Tabata Y, Tabayashi K. Cellular Growth Factors for Preventing Clinical Prosthetic Graft Infection. J Surg Res 2010. [DOI: 10.1016/j.jss.2009.11.527] [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: 11/27/2022]
|
19
|
Nitta Y, Yamamoto R, Yamaguchi Y, Katsuda S, Kaku B, Taguchi T, Takabatake S, Nakahama K, Yamagishi M. Impact of Long-Acting Calcium Channel Blockers on the Prognosis of Patients with Coronary Artery Disease with and without Chronic Kidney Disease: A Comparison of Three Drugs. J Int Med Res 2010; 38:253-65. [DOI: 10.1177/147323001003800130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [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] Open
Abstract
Calcium channel blockers (CCBs) can prevent cardiovascular events in patients with coronary artery disease (CAD). This study looked retrospectively at the prognosis of CAD in hypertensive patients with CAD who had undergone a coronary angiograph, had been given a CCB (benidipine [ n = 66], amlodipine [ n = 45], or long-acting nifedipine [ n = 31]) on hospital discharge and were then followed up for a mean ± SD of 5.2 ± 2.9 years. Systolic/diastolic blood pressure for all 142 patients decreased significantly from a mean ± SD of 137 ± 20/74 ± 15 mmHg to 129 ± 20/71 ± 12 mmHg. Major adverse cardiovascular events (MACE) occurred in 15 patients. Chronic kidney disease (CKD) was a significant risk factor for MACE (hazard ratio 2.35, 95% confidence intervals 1.45, 3.80). Benidipine was superior to nifedipine in preventing MACE in patients both with and without CKD. In conclusion, benidipine and amlodipine reduced the frequency of MACE in hypertensive patients with CAD, particularly in those with complicating CKD.
Collapse
Affiliation(s)
- Y Nitta
- Division of Cardiology, Toyama Red Cross Hospital, Toyama, Japan
| | - R Yamamoto
- Division of Cardiology, Toyama Red Cross Hospital, Toyama, Japan
| | - Y Yamaguchi
- Division of Cardiology, Toyama Red Cross Hospital, Toyama, Japan
| | - S Katsuda
- Division of Cardiology, Toyama Red Cross Hospital, Toyama, Japan
| | - B Kaku
- Division of Cardiology, Toyama Red Cross Hospital, Toyama, Japan
| | - T Taguchi
- Division of Cardiology, Toyama Red Cross Hospital, Toyama, Japan
| | - S Takabatake
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - K Nakahama
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - M Yamagishi
- Division of Cardiovascular Medicine, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| |
Collapse
|
20
|
Shimazaki H, Arima Y, Nakano T, Murao M, Nitta Y, Harata M, Kawabe N, Hashimoto S, Nagano K, Ishikawa T, Okumura A, Hayashi K, Katano Y, Kuroda M, Yoshioka K. A case of erythropoietic protoporphyria with severe liver damage. Kanzo 2010; 51:175-182. [DOI: 10.2957/kanzo.51.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
|
21
|
Kawabe N, Hashimoto S, Harata M, Nitta Y, Murao M, Nakano T, Shimazaki H, Arima Y, Komura N, Kobayashi K, Yoshioka K. The loss of HBeAg without precore mutation results in lower HBV DNA levels and ALT levels in chronic hepatitis B virus infection. J Gastroenterol 2009; 44:751-6. [PMID: 19430716 DOI: 10.1007/s00535-009-0061-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2008] [Accepted: 03/09/2009] [Indexed: 02/04/2023]
Abstract
BACKGROUND The aim of this study was to investigate the correlation between precore (PC)/basal core promoter (BCP) mutations and the viral loads or activity of hepatitis in patients with chronic hepatitis B virus (HBV) infection. METHODS HBV genotypes, PC mutations, BCP mutations, HBV DNA levels, and serological markers of HBV were analyzed in all the patients with chronic HBV infection seen in Fujita Health University Hospital from June 2004 to November 2008 (n=215). RESULTS HBV genotype was C in 169 patients, B in 16, A in 3, F in 1, and unclassifiable in 5. Among the patients with genotype C, the prevalence of PC wild type was significantly lower in hepatitis B envelope antigen (HBeAg)(-) patients than in HBeAg(+) patients (9.5% versus 49.0%, P<0.0001). Among HBeAg(-) patients, the patients with PC wild type had significantly lower serum viral loads and alanine aminotransferase (ALT) levels compared with those with PC mutant (P<0.001). Among HBeAg(-) patients, the patients with genotype B had lower serum viral loads compared with those with genotype C (3.6+/-0.9 versus 4.6+/-1.6, P<0.05), and the prevalence of BCP wild type was significantly higher in those with genotype B than in those with genotype C (58.3% versus 10.8%, P<0.05). CONCLUSIONS Among HBeAg(-) patients with genotype C, the patients with PC wild type had significantly lower viral loads and ALT levels than those with PC mutant. This suggests that the patients with PC wild type may have better prognosis than those with PC mutant among HBeAg(-) patients with genotype C.
Collapse
Affiliation(s)
- Naoto Kawabe
- Division of Liver, Biliary Tract and Pancreas Diseases, Department of Internal Medicine, Fujita Health University, 1-98 Dengakugakubo, Kutsukake, Toyoake, Aichi, 470-1192, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
22
|
Nitta Y, Kawabe N, Hashimoto S, Harata M, Komura N, Kobayashi K, Arima Y, Shimazaki H, Nakano T, Murao M, Ichino N, Osakabe K, Aoki H, Hosoe Y, Sugiyama H, Nishikawa T, Yoshioka K. Liver stiffness measured by transient elastography correlates with fibrosis area in liver biopsy in patients with chronic hepatitis C. Hepatol Res 2009; 39:675-84. [PMID: 19261000 DOI: 10.1111/j.1872-034x.2009.00500.x] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [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: 12/12/2022]
Abstract
AIM Liver stiffness (LS) measured by transient elastography (TE) has been reported to correlate with liver fibrosis, which is usually semiquantitatively assessed. In the present study, the fibrosis area was measured by image analysis software in liver biopsy specimens and its correlation with LS was assessed. METHODS LS was measured by TE in all 165 patients with chronic hepatitis C virus (HCV) infection who underwent liver biopsy consecutively in Fujita Health University Hospital from July 2004 to September 2007. RESULTS Fibrosis area was significantly correlated with fibrosis stage as assessed by the Metavir score (rho = 0.733, P < 0.0001). The optimal cut-off value of fibrosis area was 1.6% for F > or = 2, 3.1% for F > or = 3, and 3.8-6.4% for F4. LS was significantly correlated with fibrosis stage (rho = 0.734, P < 0.0001). The optimal cut-off value of LS was 7.1 kPa for F > or = 2, 9.6 kPa for F > or = 3 and 11.6-16.9 kPa for F4. Multiple linear regression analysis selected fibrosis area (P = 0.0002), alanine aminotransferase (ALT) (P = 0.0237), gamma-glutamyltransferase (gamma-GTP) (P = 0.0114), prothrombin time (P = 0.0114) and hyaluronic acid (P < 0.0001) as factors correlating with LS. CONCLUSION The correlation between LS and liver fibrosis was confirmed by the objective measurement of fibrosis area. ALT was significantly correlated with LS, suggesting that inflammatory activity also affects LS values. Despite some limitation, LS measurement is a useful method for the diagnosis of liver fibrosis.
Collapse
Affiliation(s)
- Yoshifumi Nitta
- Division of Liver, Biliary Tract and Pancreas Diseases, Department of Internal Medicine, Fujita Health University, Fujita Health University Hospital, Aichi, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Muro Y, Sugiura K, Nitta Y, Mitsuma T, Hoshino K, Usuda T, Hayashi K, Murase Y, Shimizu M, Matsuo H. Scoring of reflux symptoms associated with scleroderma and the usefulness of rabeprazole. Clin Exp Rheumatol 2009; 27:15-21. [PMID: 19796556] [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: 05/28/2023]
Abstract
OBJECTIVE The high frequency of gastroesophageal reflux disease (GERD) as a complication of scleroderma (systemic sclerosis, SSc) calls for treatment with powerful acid suppressants such as proton pump inhibitors (PPI). The present study used a GERD-specific questionnaire to assess the symptoms of GERD in SSc patients, and examine the effectiveness of rabeprazole (RPZ) for treating the symptoms of GERD. METHODS The Frequency Scale for the Symptoms of GERD (FSSG), a medical questionnaire developed in Japan for evaluating GERD, and the Visual Analogue Scale (VAS) were used to evaluate GERD symptoms and the degree of pain, respectively, in 151 SSc subjects. These tools were also used to assess the effect of 8 weeks' treatment with the PPI RPZ (10 mg/day). RESULTS Data on age and gender, and FSSG and VAS scores before treatment and after 4 and 8 weeks' RPZ treatment, were available for 84 subjects. The mean FSSG score was 13.9+/-9.7 before treatment, 8.3+/-8.1 after 4 weeks of treatment, and 7.0+/-7.0 after 8 weeks of treatment; the score reduction was significant (p<0.001) indicating the effectiveness of RPZ in improving subjective GERD symptoms. The VAS scores revealed a significant improvement in pain after both 4 and 8 weeks compared with baseline scores. Six subjects experienced adverse effects and five discontinued the analysis during the period. CONCLUSION Administration of RPZ 10 mg/day is effective for the control of the symptoms of GERD associated with SSc. In addition to assessing the symptoms of GERD, the FSSG questionnaire can be used to evaluate the therapeutic effect of drugs.
Collapse
Affiliation(s)
- Y Muro
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Nitta Y, Kawabe N, Hashimoto S, Harata M, Komura N, Kobayashi K, Arima Y, Shimazaki H, Nakano T, Murao M, Ichino N, Osakabe K, Aoki H, Hosoe Y, Sugiyama H, Nishikawa T, Yoshioka K. Liver stiffness measured by transient elastography correlates with fibrosis area in liver biopsy in patients with chronic hepatitis C. Hepatol Res 2009. [PMID: 19261000 DOI: 10.1111/j.1872–034x.2009.00500.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
AIM Liver stiffness (LS) measured by transient elastography (TE) has been reported to correlate with liver fibrosis, which is usually semiquantitatively assessed. In the present study, the fibrosis area was measured by image analysis software in liver biopsy specimens and its correlation with LS was assessed. METHODS LS was measured by TE in all 165 patients with chronic hepatitis C virus (HCV) infection who underwent liver biopsy consecutively in Fujita Health University Hospital from July 2004 to September 2007. RESULTS Fibrosis area was significantly correlated with fibrosis stage as assessed by the Metavir score (rho = 0.733, P < 0.0001). The optimal cut-off value of fibrosis area was 1.6% for F > or = 2, 3.1% for F > or = 3, and 3.8-6.4% for F4. LS was significantly correlated with fibrosis stage (rho = 0.734, P < 0.0001). The optimal cut-off value of LS was 7.1 kPa for F > or = 2, 9.6 kPa for F > or = 3 and 11.6-16.9 kPa for F4. Multiple linear regression analysis selected fibrosis area (P = 0.0002), alanine aminotransferase (ALT) (P = 0.0237), gamma-glutamyltransferase (gamma-GTP) (P = 0.0114), prothrombin time (P = 0.0114) and hyaluronic acid (P < 0.0001) as factors correlating with LS. CONCLUSION The correlation between LS and liver fibrosis was confirmed by the objective measurement of fibrosis area. ALT was significantly correlated with LS, suggesting that inflammatory activity also affects LS values. Despite some limitation, LS measurement is a useful method for the diagnosis of liver fibrosis.
Collapse
Affiliation(s)
- Yoshifumi Nitta
- Division of Liver, Biliary Tract and Pancreas Diseases, Department of Internal Medicine, Fujita Health University, Fujita Health University Hospital, Aichi, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
25
|
Kawabe N, Hashimoto S, Harata M, Nitta Y, Murao M, Nakano T, Shimazaki H, Kobayashi K, Komura N, Ito H, Niwa A, Narita W, Hanashita J, Ikeda A, Yoshioka K. Assessment of nutritional status of patients with hepatitis C virus-related liver cirrhosis. Hepatol Res 2008; 38:484-90. [PMID: 18021235 DOI: 10.1111/j.1872-034x.2007.00300.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [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: 02/08/2023]
Abstract
AIM Nutrition support for patients with liver cirrhosis, such as late evening snacks and branched-chain amino acids, has been demonstrated to be effective. However, the assessment of the malnutrition of liver cirrhosis is still a problem. The aim of this study was to assess the nutritional status of patients with liver cirrhosis due to hepatitis C virus by six methods and to test the sensitivity and specificity of these methods. METHODS In total, 86 patients with liver cirrhosis due to hepatitis C virus were assessed for nutritional status by triceps skinfold thickness (TSF), arm muscle circumference (AMC), subjective global assessment (SGA), nutritional risk index (NRI), Maastricht index (MI), and instant nutritional assessment (INA). RESULTS Malnutrition was found in 11 (12.8%) patients by TSF, 15 (17.4%) by AMC, 22 (25.6%) by SGA, 52 (60.5%) by the NRI, 66 (76.7%) by the MI, and in 54 (62.8%) by INA. The MI detected malnutrition at a significantly higher rate compared with the other five methods. Sixty-two patients were diagnosed as malnourished by the combined index, which defines the patients as malnourished when any two of the NRI, MI, and INA also define them as malnourished. The misclassification rate compared with the combined indexes was significantly lower in the MI (4.7%) than in any of the TSF (59.3%), AMC (59.3%), SGA (46.5%), NRI (16.3%), and INA (14.0%). CONCLUSION The MI was the best single score to identify the patients who had malnutrition, including early stage, and may benefit from nutrition support.
Collapse
Affiliation(s)
- Naoto Kawabe
- Department of Internal Medicine, Fujita Health University, Aichi, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Abstract
The binding of manganese(III)-tetra(4-N-methylpyridyl)porphyrin (MnTMpyP) with synthetic poly(dA-dT)2, poly(dI-dC)2, and poly(dG-dC)2 DNAs as well as calf thymus (CT) DNA has been quantitatively studied in detail using induced CD (circular dichroism) spectroscopy in the Soret absorption band. The CD spectra, which changed greatly depending on the porphyrin to DNA base-pair molar ratio (r), were normalized with respect to DNA concentration and deconvoluted. Three independent component binding modes (named mode 1, 2, and 3 in the order of increasing r values) were identified, which successfully simulated the observed CD spectra with negligibly small residuals for a wide range of r values. In the case of poly(dA-dT)2, poly (dI-dC)2, and CT DNA, all the three modes appeared, whereas in the case of poly(dG-dC)2 DNA, only modes 1 and 3 appeared in the r range studied. The r dependence of each binding mode, i.e., its relative affinity toward DNA, has been revealed by this analysis. Mode 1, which appeared as a single binding mode at very low r values (r < or = ca. 0.05), was inhibited by the addition of methyl green, a drug that preferentially binds to the major groove of poly (dA-dT)2 DNA. Berenil, a known minor groove binder to poly(dA-dT)2 or poly(dI-dC)2 DNA, inhibited modes 2 and 3. From these inhibition experiments as well as comparison of the component spectra for DNAs of different sequence, a binding site on DNA was proposed for each component binding mode. The number of DNA base pairs covered by a single molecule of porphyrin was estimated.
Collapse
Affiliation(s)
- Y Nitta
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, 3-8-1 Komaba, Meguro-ku, Tokyo, 153-8902 Japan
| | | |
Collapse
|
27
|
Hosono TY, Kuratsukuri K, Nitta Y, Sugimura K, Harada T, Nakatani T. A case of primary extragonadal seminoma arising in the perineum. Urol Int 2006; 76:364-7. [PMID: 16679842 DOI: 10.1159/000092065] [Citation(s) in RCA: 2] [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] [Received: 06/27/2005] [Accepted: 08/25/2005] [Indexed: 11/19/2022]
Abstract
We report the first case of primary extragonadal seminoma arising in the perineum. A 34-year-old-man presented with a 2-cm painless mass in the perineum. He underwent surgical resection, and histology showed poorly differentiated adenocarcinoma. Three months later, local recurrence occurred. Whole evaluation including ultrasound and MRI of the testes were normal, so he underwent surgical wide excision, and pathology showed the tumor was pure seminoma. He received two courses of bleomycin, etoposide and cisplatin (BEP) therapy, and there has been no evidence of recurrence for 1 month.
Collapse
Affiliation(s)
- T Y Hosono
- Department of Urology, Osaka City University Graduate School of Medicine, Osaka, Japan.
| | | | | | | | | | | |
Collapse
|
28
|
Nitta Y, Fang Y, Takemasa M, Nishinari K. Gelation of Xyloglucan by Addition of Epigallocatechin Gallate as Studied by Rheology and Differential Scanning Calorimetry. Biomacromolecules 2004; 5:1206-13. [PMID: 15244432 DOI: 10.1021/bm034526y] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [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
Interaction of tamarind seed xyloglucan (TSX) and epigallocatechin gallate (EGCG) was investigated. TSX alone showed the rheological behaviors of dilute and semidilute solution types in the temperature range from 10 to 50 degrees C and the concentration range from 1 to 10%. Addition of a small amount of EGCG changed the rheological properties of TSX solutions to induce a thermoreversible gelation. The sol-gel transition was detected as a crossover of the storage and loss shear moduli at a certain temperature in thermal scanning rheological measurements and an endo- and exo- thermic peaks in curves obtained by differential scanning calorimetry on heating and cooling. High storage modulus of the gels at all experimental frequencies also indicated the formation of a network structure. Increase in the gel strength and the enthalpy of the transition with increasing EGCG concentration at fixed TSX concentration suggested that EGCG was directly involved in the network formation through association with TSX. The TSX gel was obtained by addition of appropriate amount of EGCG. Addition of an excessive amount of EGCG induced precipitation.
Collapse
Affiliation(s)
- Y Nitta
- Graduate School of Human Life Science, Osaka City University, 3-3-138, Sumiyoshi-ku, Sugimoto, Osaka City, Osaka, 558-8585, Japan
| | | | | | | |
Collapse
|
29
|
Affiliation(s)
- H Miyazaki
- Department of Neurosurgery, Shirakawa Hospital, Fukushima, Japan
| | | | | | | | | |
Collapse
|
30
|
Sekine K, Shima M, Nitta Y, Adachi M. Long term effects of exposure to automobile exhaust on the pulmonary function of female adults in Tokyo, Japan. Occup Environ Med 2004; 61:350-7. [PMID: 15031394 PMCID: PMC1740751 DOI: 10.1136/oem.2002.005934] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.4] [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: 11/04/2022]
Abstract
AIMS To investigate the chronic effects of air pollution caused mainly by automobiles in healthy adult females. METHODS Respiratory symptoms were investigated in 5682 adult females who had lived in the Tokyo metropolitan area for three years or more in 1987; 733 of them were subjected to pulmonary function tests over eight years from 1987 to 1994. The subjects were divided into three groups by the level of air pollution they were exposed to during the study period. The concentrations of nitrogen dioxide and suspended particulate matter were the highest in group 1, and the lowest in group 3. RESULTS The prevalence rates of respiratory symptoms in group 1 were higher than those in groups 2 and 3, except for wheezing. Multiple logistic regression analysis showed significant differences in persistent phlegm and breathlessness. The subjects selected for the analysis of pulmonary function were 94, 210, and 102 females in groups 1, 2, and 3, respectively. The annual mean change of FEV(1) in group 1 was the largest (-0.020 l/y), followed by that in group 2 (-0.015 l/y), and that in group 3 (-0.009 l/y). Testing for trends showed a significant larger decrease of FEV(1) with the increase in the level of air pollution. CONCLUSIONS The subjects living in areas with high levels of air pollution showed higher prevalence rates of respiratory symptoms and a larger decrease of FEV(1) compared with those living in areas with low levels of air pollution. Since the traffic density is larger in areas with high air pollution, the differences among the groups may reflect the effect of air pollution attributable to particulate matter found in automobile exhaust.
Collapse
Affiliation(s)
- K Sekine
- Department of Public Health, Graduate School of Medicine, Chiba University, Chiba, Japan
| | | | | | | |
Collapse
|
31
|
Matsuyama K, Kawakami N, Ichikawa T, Nitta Y, Ishimura K, Horio S, Fukui H. Expression of histamine H 1 receptor in placenta. Inflamm Res 2004; 53 Suppl 1:S85-6. [PMID: 15054632 DOI: 10.1007/s00011-003-0341-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2003] [Accepted: 01/01/2003] [Indexed: 10/26/2022] Open
Affiliation(s)
- K Matsuyama
- Department of Pharmacology, Faculty of Pharmaceutical Sciences, The University of Tokushima, 1-78-1 Shomachi, 770-8505 Tokushima, Japan
| | | | | | | | | | | | | |
Collapse
|
32
|
Abstract
PURPOSE To investigate the biological effectiveness of neutrons at the energy below 1 MeV on apoptosis and carcinogenesis in the mouse ovary. MATERIALS AND METHODS Female mice were exposed to 1.0 Gy monoenergetic neutrons (0.317, 0.525 and 1.026 MeV), (252)Cf fission neutron (2.13 MeV) or (137)Cs gamma-rays at 7 days of age. Apoptosis of the oocyte and pregranulosa cells, and ovarian carcinogenesis were compared between the radiations. The efficiency of gamma-rays for granulosa cell tumorigenesis was tested by transplantation of the irradiated ovaries into non-irradiated mice. RESULTS The cumulative apoptotic index of oocytes was 77.9%, 65.6% and 41.6% for the 0.525 MeV neutron, 2.13 MeV neutron and gamma-rays, respectively. Follicles with apoptotic pregranulosa cells were 53.0%, 18.3% and 22.8% of cumulative index for the three groups. Tubular adenomas developed in the groups of monoenergetic neutrons (26.1%) and gamma-ray (35.5%), whereas granulosa cell tumours developed only in the gamma-ray groups (3.2% for 1.0 Gy and 15.6% for 3.0 Gy). Partial-body irradiation with 3 Gy gamma-rays to the ovaries induced granulosa cell tumours with an incidence of 27.3%. CONCLUSION Effectiveness of neutrons to cause apoptosis was higher for 0.525 MeV than for 2.13 MeV. The pregranulosa cell apoptosis occurred in an oocyte-prone manner. The higher effectiveness of neutrons than gamma-rays to induce oocyte and pregranulosa cell apoptosis correlates with the inhibition of granulosa cell tumour development.
Collapse
Affiliation(s)
- Y Nitta
- International Radiation Information Center, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku Hiroshima 734-8553, Japan.
| | | |
Collapse
|
33
|
Abstract
Pancreatic tissue grafting is by far the most physiological therapeutic solution to the insulin deficiency of diabetes. Recent clinical trials have indicated somewhat successful use of nonsteroidal immunosuppressive regimens and a successful nonhuman primate trial using CD154 for costimulation blockade was reported. However, these protocols need to be replaced with safe and efficacious ones in which long-term allotolerance would make these treatments routine in a clinical setting. With the specific objective of testing whether peripheral infusions of stem cells or stem cell fractions in conjunction with islet allografting would induce allograft tolerance, we have established a macaque diabetic model. The macaques were rendered diabetic by streptozotocin and required daily doses of insulin to maintain lower blood glucose levels. The diabetic macaques then received islets and stem cells from unrelated and MHC-mismatched donors without any immunosuppression. In our initial analysis, 5 of 7 macaques that received stem cell infusions at the time of islet allografting have shown allograft survival longer than the group of macaques that received islets without the stem cell infusion. One of these five macaques has been normoglycemic for 10 months, with no exogenous insulin. This macaque received stem cell population enriched for CD34+ cells with depletion of CD18 cells, which have shown low or no allostimulatory potential in mixed lymphocyte cultures. Increased levels in insulin and C-peptide levels were shown in the macaques after islet transplantation.
Collapse
Affiliation(s)
- Lakshmi K Gaur
- Puget Sound Blood Center, Seattle, Washington 98104, USA.
| | | | | | | | | | | | | |
Collapse
|
34
|
Abstract
Recent clinical trials have pioneered the successful use of a nonsteroidal immunosuppressive regimen and established a basis for application in a routine clinical setting. In this study, a single islet transplant was not sufficient to regulate blood glucose levels, and a second transplant became necessary. A similar observation was made in our macaque islet transplant study, where animals after the second transplantation have shown trends towards normoglycemia in the presence of mycophenolate mofetil. All five animals that received the second transplant have shown an initial rise in C peptide levels, which rapidly decreased as we tapered the MMF dose from 20 mg/kg BID to 5 mg/kg SID. Two animals of the five that were preconditioned with MMF one week prior to transplantation have shown significantly higher C peptide levels. We believe that it is very important to understand the relationship between the first graft failure and subsequent islet allograft success. Since graft success did not correlate with number of transplanted islets, the correction of blood glucose levels toward normoglycemia after the second transplantation suggests a mechanism by which the allotolerance to second transplant is facilitated by the first islet transplantation. These initial observations suggest approaches to "tolerize" the recipient to accept the second-transplant islets (a) through preconditioning the animal to improve the rate of success for the first transplant or (b) through tolerization to islets in the first transplant to facilitate better engraftment of the second-transplant islets.
Collapse
Affiliation(s)
- Lakshmi K Gaur
- Puget Sound Blood Center, Seattle, Washington 98104, USA.
| | | | | | | | | | | | | |
Collapse
|
35
|
|
36
|
Nitta Y, Nishibori M, Iwagaki H, Yoshino T, Mori S, Sawada K, Nakaya N, Saeki K, Tanaka N. Changes in serotonin dynamics in the gastrointestinal tract of colon-26 tumour-bearing mice: effects of cisplatin treatment. Naunyn Schmiedebergs Arch Pharmacol 2001; 364:329-34. [PMID: 11683520 DOI: 10.1007/s002100100461] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Severe nausea and vomiting are common side effects of anti-cancer chemotherapy. 5-HT3 receptor antagonists have been used for the treatment of these gastrointestinal symptoms. The purpose of this study was to examine whether specific changes in serotonin dynamics occurred in the gastrointestinal tract in mice in which Colon-26 adenocarcinoma cells were injected s.c., especially after treatment with cisplatin. The serotonin content of the small intestine of mice inoculated s.c. with Colon-26 adenocarcinoma increased significantly 2 weeks after the inoculation of the tumor cells; this was associated with an increase in tryptophan hydroxylase activity and the number of enterochromaffin cells as compared with control mice. Intravenous injection of cisplatin significantly reduced the serotonin content in the small intestine of Colon-26 tumour-bearing mice but not in control mice. The spontaneous release of serotonin from isolated intestine was not different between Colon-26 tumour-bearing and control mice; however, pretreatment of mice with cisplatin induced two fold increases in serotonin release from duodenum, jejunum and ileum in Colon-26 tumour-bearing mice but not in control mice. These results indicate that a region-specific increase in the number of enterochromaffin cells is observed in the intestine of Colon-26 tumour-bearing mice, associated with an increase in the serotonin content and tryptophan hydroxylase activity. Cisplatin treatment induced the release of serotonin from affected enterochromaffin cells in the gastrointestinal tract, which may be related to the occurrence of nausea in clinical use.
Collapse
Affiliation(s)
- Y Nitta
- Department of Gastroenterological Surgery, Transplant, and Surgical Oncology, Okayama University Graduate School of Medicine and Dentistry, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Otsuka S, Iwagaki H, Yoshino T, Nitta Y, Takeuchi Y, Uomoto M, Gouchi A, Nishibori M, Tanaka N. Extensive cell death in thymocytes in colon 26-induced cachectic mice. J Int Med Res 2001; 28:36-45. [PMID: 10815646 DOI: 10.1177/147323000002800106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 11/16/2022] Open
Abstract
Extensive atrophy has been reported to occur in the thymus in a cancer-burden state but the mechanisms of this atrophy have not been fully elucidated. We investigated changes in the thymus in tumour-bearing mice inoculated with two subclones of the murine colon 26 adenocarcinoma cell line: clone 5 (non-cachectic) and clone 20 (cachectic). In clone 20 mice, body weights and thymocyte numbers decreased significantly compared with controls. Flow cytometric analysis of the thymocytes demonstrated that the frequency of single positive cells (CD4+ CD8- and CD4- CD8+) was significantly increased and that of double positive cells (CD4+ CD8+) was significantly decreased in clone 20 mice and, to a lesser extent, in clone 5 mice compared with controls. Serum levels of interleukin 6 and granulocyte-macrophage colony-stimulating factor (GM-CSF) were significantly elevated. These results suggested that thymocyte apoptosis was accelerated in the cancer-cachectic state, and increased GM-CSF might be partly responsible for thymic atrophy.
Collapse
Affiliation(s)
- S Otsuka
- Department of Surgery, Okayama University Medical School, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Shimose S, Sugita T, Nitta Y, Kubo T, Ikuta Y, Murakami T. Effect of thermosensitive liposomal doxorubicin with hyperthermia on primary tumor and lung metastases in hamster osteosarcoma. Int J Oncol 2001; 19:585-9. [PMID: 11494040 DOI: 10.3892/ijo.19.3.585] [Citation(s) in RCA: 2] [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: 11/05/2022] Open
Abstract
We evaluated the effect of intravenous thermosensitive liposomal doxorubicin (TL-DOX) together with local hyperthermia on primary tumors in highly metastatic hamster osteosarcoma. This combination resulted in higher DOX concentrations in plasma, primary tumors and lungs than standard DOX under the same conditions. Tumor growth and lung metastasis were also inhibited more by TL-DOX and hyperthermia than by hyperthermia alone, DOX with or without hyperthermia, and TL-DOX without hyperthermia. In addition, gains in hamster body weight were not suppressed. These results suggest that the combination of TL-DOX and hyperthermia can control primary tumors and suppress lung metastasis in hamsters.
Collapse
Affiliation(s)
- S Shimose
- Department of Orthopaedic Surgery, Faculty of Medicine, Hiroshima University, 1-2-3 Kazumi, Minami-Ku, Hiroshima 734-8551, Japan.
| | | | | | | | | | | |
Collapse
|
39
|
Yamakami K, Akao S, Sato M, Nitta Y, Miyazaki J, Tadakuma T. A single intradermal administration of soluble leishmanial antigen and plasmid expressing interleukin-12 protects BALB/c mice from Leishmania major infection. Parasitol Int 2001; 50:81-91. [PMID: 11438430 DOI: 10.1016/s1383-5769(01)00070-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [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: 10/18/2022]
Abstract
In murine leishmaniasis, the induction of the T-helper type 1 (Th1) response contributes to infection resistance, whereas the establishment of the Th2 response makes the mice susceptible to infection. Interleukin-12 (IL-12) plays a pivotal role in the diversification of immune responses to the Th1 type. In this study, we tested whether the co-administration of IL-12 expression plasmid which compose p35 and p40 subunits and soluble leishmanial antigen (SLA) will skew the susceptible BALB/c mice to Th1 response and protect from leishmaniasis. When the mice were intradermally injected with the combination of IL-12 plasmid and SLA 7 days prior to the challenge with 1x10(6) promastigotes of Leishmania major, the local lesions completely healed and the parasite burden in the local lymph nodes significantly decreased. The cured mice attained long-term immunity, and were resistant to any subsequent rechallenge of the lethal dose of the parasite. The protective effect was associated with the development of a Th1 response, as demonstrated by the enhanced level of antigen-specific interferon-gamma (IFN-gamma) and dominant production of IgG2a in the serum. In contrast, the administration of empty plasmid plus SLA or IL-12 plasmid alone failed to protect the disease and shape the Th1 response. Furthermore, the protective efficiency induced by the vaccination was clearly prevented by the injection of either neutralizing anti-IL-12 mAb or anti-IFN-gamma mAb. The IL-12 expression plasmid is thus an effective adjuvant for the elicitation of a protective Th1 response against leishmaniasis and is therefore, considered to be appropriate for vaccinations that require the induction of Th1 type immunity.
Collapse
MESH Headings
- Animals
- Antibodies, Protozoan/biosynthesis
- Antigens, Protozoan/administration & dosage
- Antigens, Protozoan/immunology
- Female
- Immunoglobulin G/biosynthesis
- Injections, Intradermal
- Interferon-gamma/biosynthesis
- Interleukin-12/genetics
- Interleukin-12/immunology
- Interleukin-4/biosynthesis
- Leishmania major/growth & development
- Leishmania major/immunology
- Leishmaniasis, Cutaneous/immunology
- Leishmaniasis, Cutaneous/parasitology
- Leishmaniasis, Cutaneous/prevention & control
- Lymph Nodes/immunology
- Lymph Nodes/parasitology
- Mice
- Mice, Inbred BALB C
- Plasmids
- Protozoan Vaccines/administration & dosage
- Protozoan Vaccines/immunology
- Specific Pathogen-Free Organisms
- Vaccination
- Vaccines, DNA/administration & dosage
- Vaccines, DNA/immunology
Collapse
Affiliation(s)
- K Yamakami
- Department of Parasitology and Immunology, National Defense Medical College, 3-2, Namiki, 359-8513, Tokorozawa, Japan.
| | | | | | | | | | | |
Collapse
|
40
|
Iwata A, Sai S, Nitta Y, Chen M, de Fries-Hallstrand R, Dalesandro J, Thomas R, Allen MD. Liposome-mediated gene transfection of endothelial nitric oxide synthase reduces endothelial activation and leukocyte infiltration in transplanted hearts. Circulation 2001; 103:2753-9. [PMID: 11390348 DOI: 10.1161/01.cir.103.22.2753] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND During cardiac ischemia-reperfusion injury, neutrophilic infiltration of the myocardium is mediated by adhesion molecule expression on activated coronary endothelium. Nitric oxide inhibits neutrophil adhesion to endothelium in vitro by blocking the nuclear factor (NF)-kappaB-dependent transcription of adhesion molecules. We investigated whether intraoperative gene delivery of endothelial nitric oxide synthase (eNOS) into donor hearts before transplantation would have a similar effect on an entire organ. METHODS AND RESULTS In an allogeneic rabbit heart transplant model, liposomes complexed to the gene encoding eNOS were infused into the donor coronary circulation before transplantation. By 24 hours after transplantation, calcium-dependent nitrite production was significantly higher in eNOS-transfected donor hearts than in the 3 control groups: donor hearts transfected with empty plasmids alone, donor hearts treated with diluent only, and untransplanted native hearts. Intramyocardial neutrophil and T-lymphocyte populations were halved in eNOS-transfected hearts compared with control donor hearts (P<0.05). Moreover, the prevalence of NF-kappaB activation in microvascular endothelial cells and surrounding cardiac myocytes as well as endothelial vascular cell adhesion molecule-1 and intracellular adhesion molecule-1 expression were all significantly reduced in eNOS-transfected hearts compared with control donor hearts (P<0.01). Without immunosuppression, eNOS-transfected hearts survived longer than controls. CONCLUSIONS Intraoperative liposome-mediated gene delivery of eNOS to donor hearts can result in early gene expression sufficient to reduce ischemia-reperfusion injury by inhibiting NF-kappaB activation, adhesion molecule expression, and the early infiltration of leukocytes, all of which may improve graft survival.
Collapse
Affiliation(s)
- A Iwata
- University of Washington, Seattle, WA, USA
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Nitta Y, Endo S, Fujimoto N, Kamiya K, Hoshi M. Age-dependent exposure to radioactive iodine (131I) in the thyroid and total body of newborn, pubertal and adult fischer 344 rats. J Radiat Res 2001; 42:143-155. [PMID: 11599881 DOI: 10.1269/jrr.42.143] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Female rats of the Fischer 344 strain at ages of 1, 4 and 9 weeks were exposed to 131I intraperitoneally with activities of 0.38, 1.03 and 3.42 kBq per gram of body weight under the condition of iodine deficiency. The absorbed doses in the thyroid increased linearly depending on the injected activities. Irradiation at 1 week old caused heavier exposure than those at 4 and 9 weeks old by 7.5 and 7.7 times, respectively; however, damage of the thyroid tissue was more obvious in the 4-week-old groups than in the 1-week-old groups. The absorbed doses in the total body were proportional to the square root of the injected activities. The one-week-old groups were exposed more heavily than the 4- and 9-week-old groups by 3.6 and 4.7 times, respectively, shown by the slow excretion of 131I with the values of effective half-life of 131I activity (Teff). An IDD-treatment was not so effective to enhance the 131I absorption in the total body, as in the thyroid. No matter how the iodine concentration in the blood changed, the 1-week-old groups could not react to normalize the level. We drew standard curves, which enabled us to estimate the absorbed doses in the thyroid and the total body in the case of the injected activities of 131I for the newborn, pubertal and adult rats.
Collapse
Affiliation(s)
- Y Nitta
- Research Institute for Radiation Biology and Medicine, Hiroshima University, Japan.
| | | | | | | | | |
Collapse
|
42
|
Kawamoto S, Nitta Y, Tashiro F, Nakano A, Yamato E, Tahara H, Tabayashi K, Miyazaki J. Suppression of T(h)1 cell activation and prevention of autoimmune diabetes in NOD mice by local expression of viral IL-10. Int Immunol 2001; 13:685-94. [PMID: 11312256 DOI: 10.1093/intimm/13.5.685] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [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: 11/13/2022] Open
Abstract
Insulin-dependent diabetes mellitus in the NOD mouse model is caused by the T cell-mediated autoimmune destruction of pancreatic beta cells. Viral IL-10 (vIL-10), encoded in the Epstein-Barr virus genome, shares many of the anti-inflammatory properties of cellular IL-10, but lacks its immunostimulatory properties. In the present study, we generated transgenic (Tg) NOD mice in which vIL-10 was produced exclusively in pancreatic islets and investigated the effect of vIL-10 on the development of diabetes. The accumulation of lymphocytes around islets was more prominent, but the invasive insulitis decreased in the vIL-10 Tg mice. The incidence of diabetes was markedly reduced in the vIL-10 Tg mice, in clear contrast to the accelerated diabetes seen in the murine IL-10 Tg NOD mice. IL-12p40 and IFN-gamma mRNA levels were decreased in pancreata of the vIL-10 Tg mice, although CD4 mRNA level was markedly increased. These results suggest that locally produced vIL-10 induced leukocyte migration, but inhibited the activation of T(h)1, probably through suppressing the production of IL-12. They indicate that vIL-10 may well be superior to cellular IL-10 in the treatment of autoimmune diabetes. The vIL-10 Tg NOD mice should provide a useful tool for understanding the differential action of vIL-10 versus cellular IL-10.
Collapse
Affiliation(s)
- S Kawamoto
- Department of Nutrition and Physiological Chemistry, Osaka University Medical School, Suita, Osaka 565-0871, Japan
| | | | | | | | | | | | | | | |
Collapse
|
43
|
Kakizawa J, Nitta Y, Yamashita T, Ushijima H, Katow S. Mutations of rubella virus vaccine TO-336 strain occurred in the attenuation process of wild progenitor virus. Vaccine 2001; 19:2793-802. [PMID: 11282189 DOI: 10.1016/s0264-410x(01)00018-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [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: 10/17/2022]
Abstract
The sequences of the genomes in the TO-336 vaccine strain (TO-336vac) of rubella virus and its wild progenitor virus (TO-336wt) have been determined and compared with each other. There were 21 differences in the nucleotide sequences between the TO-336vac and the TO-336wt: 13 in the nonstructural protein open reading frame (NSP-ORF), five in the structural protein open reading frame (SP-ORF) and three in the untranslated regions (UTRs) (one in each three UTRs). These mutations resulted in amino acid substitutions at ten residues. Of the ten substitutions, eight were in NSP-ORF and two were in the SP-ORF. Of the eight substitutions in NSP-ORF, four (amino acids (aa) 320, 501, 573 and 704) were in the regions of unknown function, two (aa 1154 and 1159) were within the protease motif, and two (aa 1351 and 1559) were within the helicase motif. Both of the two residues (aa 890 and 954) in the SP-ORF were within the E1 gene. The predicted second structure of the 5'UTR of the TO-336vac was identical to that of TO-336wt. Comparing the TO-336 sequences with other four strains, Therien and M33 (wild viruses), and RA27/3 and Cendehill (vaccine viruses), the mutations responsible for attenuation are thought to differ with each vaccine strain. This is the first report of sequencing in a pair of live attenuated rubella vaccines and their wild-type parent.
Collapse
Affiliation(s)
- J Kakizawa
- Department of Viral Disease and Vaccine Control, National Institute of Infectious Diseases, 4-7-1 Gakuen, Musashi-Murayama, Tokyo 208-0011, Japan
| | | | | | | | | |
Collapse
|
44
|
Sekido T, Sakura N, Higashi Y, Miya K, Nitta Y, Nomura M, Sawanishi H, Morito K, Masamune Y, Kasugai S, Yokogawa K, Miyamoto K. Novel drug delivery system to bone using acidic oligopeptide: pharmacokinetic characteristics and pharmacological potential. J Drug Target 2001; 9:111-21. [PMID: 11697106 DOI: 10.3109/10611860108997922] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.3] [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: 11/13/2022]
Abstract
We synthesized fifteen oligopeptides consisting of Asp or Glu conjugated with a fluorescent probe, 9- fluorenylmethylchloroformate (Fmoc). In the in vitro binding assay to putative hydroxyapatite (HA), the affinities of these conjugates depended only on the number of amino acid residues, not on their optical characters (L or D) or their species (Asp or Glu). In an in vivo experiment involving a single i.v. injection of Fmoc-D-Asp oligopeptides into mice, peptides consisting of over six Asp residues were selectively distributed to the bone. Then, we synthesized estradiol-17 beta-succinate-(L-Asp)6 [E2-(L-Asp)6] and studied its pharmacokinetic characteristics and its antiosteoporotic effects on ovariectomized (OVX) mice. Although the distribution volume of E2-(L-Asp)6 was significantly smaller than that of E2, E2-(L-Asp)6 was selectively distributed in the bone after i.v. injection and gradually decreased during 7 days. E2-(L-Asp)6 effectively prevented OVX-induced bone loss, without altering the uterine weight, in the dosage range of 0.11 to 1.1 mumol/kg once a week, while E2 increased both the bone mineral density and uterine weight at 0.37 mumol/kg every third day. The results suggest that acidic oligopeptide may be useful for drug delivery to bone and E2-(L-Asp)6 is a good candidate as an anti-osteoporosis drug without the adverse side effects of E2.
Collapse
Affiliation(s)
- T Sekido
- Department of Biosynthetic Chemistry Faculty of Pharmaceutical Science, Horuriku University, Kanazawa, Japan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Abstract
MDP-Lys (N2-[(N-acetylmuramyl)-L-alanyl-D-isoglutaminyl]-N6-stearoyl-L-lysine), a macrophage activator, is a lipophilic derivative of muramyl dipeptide (MDP). Multilamellar liposome incorporated MDP-Lys was prepared using phosphatidylcholine and phosphatidylserine by conventional film method, and its inhibitory effect on lung metastasis was compared with MDP-Lys as a solution in hamster's osteosarcoma. The lung metastatic rates after transplantation of the tumor to a lower extremity, in which the extremity was amputated 3 weeks later, were 50% and 100% 3 and 7 weeks, respectively, after transplantation. The rates after amputation were reduced by the treatment with MDP-Lys proportionally to the logarithmic MDP-Lys dose, and the rates 7 weeks after transplantation were 55% and 60%, respectively, in the MDP-Lys solution (50 microg/day) and liposomal MDP-Lys (20 microg twice/week) groups. Fifty percent of hamsters treated with liposomal MDP-Lys survived for more than 6 months. Considering that hamsters had a lung metastasis rate of 50% before MDP-Lys treatment, liposomal MDP-Lys given at a dose of 20 microg twice/week was effective for inhibiting lung metastasis at a far lower dose of MDP-Lys than that given as a solution (40 microg vs. 350 microg per week). No significant side effect of liposomal MDP-Lys, as evaluated by the comparison of body weight changes among differently treated hamsters, was detected. This greater inhibitory effect of liposomal MDP-Lys can be considered to be due to the longer retention of the liposomal form in the lung.
Collapse
Affiliation(s)
- Y Nitta
- Department of Orthopaedic Surgery, Hiroshima University School of Medicine, Japan
| | | | | | | |
Collapse
|
46
|
Nitta Y, Kawamoto S, Tashiro F, Aihara H, Yoshimoto T, Nariuchi H, Tabayashi K, Miyazaki J. IL-12 plays a pathologic role at the inflammatory loci in the development of diabetes in NOD mice. J Autoimmun 2001; 16:97-104. [PMID: 11247635 DOI: 10.1006/jaut.2000.0469] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 11/22/2022]
Abstract
Accumulating evidence suggests that CD4(+)T helper type 1 (Th1) cells play a major role in the development of insulin-dependent diabetes mellitus (IDDM) in the non-obese diabetic (NOD) mouse model. Interleukin (IL)-12 is a potent immunoregulatory molecule that is a key determinant of T-cell differentiation into Th1 cells, and has been implicated in the development of IDDM. To investigate the role of IL-12 that is locally produced by islet-infiltrating cells in the development of IDDM, we generated transgenic NOD mice in which the IL-12 p40 homodimer, a natural antagonist of IL-12, was produced exclusively in islets without affecting the levels of IL-12 p40 in the systemic circulation. We found that the incidence of diabetes was significantly reduced in these transgenic mice. These results clearly demonstrate that IL-12 locally produced by islet-infiltrating cells plays a critical role in the development of IDDM.
Collapse
Affiliation(s)
- Y Nitta
- Department of Nutrition and Physiological Chemistry, Osaka University Medical School, Suita, Osaka 565-0871, Japan
| | | | | | | | | | | | | | | |
Collapse
|
47
|
Abstract
The municipal waste disposal system is at a turning point now, because full-scale efforts are demanded to approach the goal of 'the construction of a waste-recycling society'. An attempt was made to evaluate municipal solid waste management systems with easier indexes in the model area. This study includes two evaluation systems. One evaluation system (case 1) is based on the analysis of waste management costs. Different waste disposal systems can be easily evaluated by comparing the waste disposal costs associated with them. However, it seems risky to rate cities only by the results of an analysis of the waste disposal cost data, since the municipalities build, acquire or expand facilities independently from one another. The associated costs are not summed in a uniform way by all municipalities and for other reasons. The other evaluation system (case 2) is based on the 'amenity and comfort ranking of cities' (Keizai 1998). Judgment by one evaluation index alone for a waste disposal system seems risky since the data in that case are insufficient for proper evaluation of a city. Hence, it is desirable to use two or more indices representative of a future ideal system. The results of the study demonstrated that Toyo Keizai's method of 'amenity and comfort ranking of cities' is better than the method of comparing solid waste management costs.
Collapse
Affiliation(s)
- H Hasome
- Department of Environmental Engineering, Japan Environmental Sanitation Center, Kawasaki.
| | | | | | | |
Collapse
|
48
|
Nitta Y, Gaur LK, Nelson K, de Fries-Hallstrand R, Thomas R, Andrews RG, Allen MD. Intrathymic donor stem cell fractions increase chimerism but do not check alloantibody or alloreactivity responses in nonhuman primates. Transplant Proc 2001; 33:110-1. [PMID: 11266731 DOI: 10.1016/s0041-1345(00)01929-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Y Nitta
- Division of Cardiothoracic Surgery, University of Washington, Seattle, Washington, USA
| | | | | | | | | | | | | |
Collapse
|
49
|
Nitta Y, Nelson K, Andrews RG, Thomas R, Gaur LK, Allen MD. CFSE dye dilution mixed lymphocyte reactions quantify donor-specific alloreactive precursors in non-human primate cardiac graft rejection. Transplant Proc 2001; 33:326-9. [PMID: 11266844 DOI: 10.1016/s0041-1345(00)02032-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Y Nitta
- Division of Cardiothoracic Surgery, University of Washington, Seattle, Washington, USA
| | | | | | | | | | | |
Collapse
|
50
|
Kubo T, Sugita T, Shimose S, Nitta Y, Ikuta Y, Murakami T. Targeted systemic chemotherapy using magnetic liposomes with incorporated adriamycin for osteosarcoma in hamsters. Int J Oncol 2001; 18:121-5. [PMID: 11115548 DOI: 10.3892/ijo.18.1.121] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [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: 11/06/2022] Open
Abstract
To control the growth of primary tumors effectively with systemic chemotherapy, we recently developed intravenously administered small-sized magnetic liposomes as an anticancer drug carrier. We previously reported that intravenously administered magnetic liposomes with incorporated adriamycin (magnetic ADR liposomes) effectively delivered ADR to the target site where a permanent magnet was implanted. In the present study, the therapeutic efficacy of this novel treatment approach, which involves a combination of magnet implantation at the target site and intravenous administration of magnetic liposomes, was further evaluated by comparing tumor growth rates among different administration modalities and by histological examination of treated tumors. Small-sized magnetic ADR liposomes with a mean diameter of 146 nm were prepared by the reverse-phase evaporation method. Syrian male hamsters inoculated with osteosarcoma, Os515, in the right hind limb were studied 7 days after inoculation. One day prior to the animal study, either a permanent magnet (with magnetic force) or non-magnetic alloy (without magnetic force) was implanted in the center of the tumors. Treatment with magnetic ADR liposomes under magnetic force showed significantly greater antitumor activity than intravenous administration of ADR solution or that of magnetic ADR liposomes without magnetic force. ADR administered as magnetic liposomes eliminated weight loss of hamsters, one of the side effects produced by ADR. Interestingly, magnetic liposomes (without incorporated ADR) given under magnetic force also suppressed the tumor growth. The selective accumulation of magnetite particles in the tumor blood vessels was observed by histological examination. These results suggest that this systemic chemotherapy can effectively control the primary tumor without significant side effects, due to the targeting of magnetic ADR liposomes.
Collapse
Affiliation(s)
- T Kubo
- Department of Orthopaedic Surgery, Faculty of Medicine, Hiroshima University, Minami-ku, Hiroshima 734-8551, Japan.
| | | | | | | | | | | |
Collapse
|