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Tateishi Y, Toyoda S, Murakami H, Uchida R, Ichikawa R, Kikuchi T, Sato W, Suzuki K. A short-term intervention of ingesting iron along with methionine and threonine leads to a higher hemoglobin level than that with iron alone in young healthy women: a randomized, double-blind, parallel-group, comparative study. Eur J Nutr 2023; 62:3009-3019. [PMID: 37480367 PMCID: PMC10468430 DOI: 10.1007/s00394-023-03213-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 07/10/2023] [Indexed: 07/24/2023]
Abstract
PURPOSE Enhancing iron absorption and utilization is important for amelioration iron status faster and thereby, for improving quality of life. Dietary protein and amino acids, including methionine and threonine, have been reported to facilitate the absorption and utilization of dietary iron. Here, we investigated the effect of combined ingestion of methionine, threonine, and iron on the improvement of iron status during a short-term intervention, by comparing that with iron ingestion alone in healthy young women. METHODS This was a randomized, double-blind, parallel-group, comparative study with 45 participants (aged 20-39) randomly assigned to three groups (n = 15 each): one group was administered 200 mg methionine, 400 mg threonine, and 6 mg iron once daily (FEMT); another ingested 6 mg iron alone (FE); and the third group ingested a placebo (PCG). Blood samples and dietary nutrient data were collected before the intervention (week 0) and after 2, 4, and 6 weeks. Serum iron, hemoglobin, transferrin, and ferritin levels were measured. RESULTS Blood hemoglobin levels were significantly higher in the FEMT than in the FE group (P < 0.05) at week 4. Serum iron, transferrin, and ferritin levels were not changed across groups. In addition, our analyses showed that the observed increase in hemoglobin levels was affected by the intervention rather than changes in dietary nutrient intake. CONCLUSIONS Ingestion of methionine and threonine with low doses of iron leads to a higher hemoglobin levels than that with iron alone in a short period of 4 weeks. TRIAL REGISTRATION University Hospital Medical Information Network Clinical Trial Registry (UMIN000046621).
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Affiliation(s)
- Yuko Tateishi
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kanagawa, 210-8681, Japan.
| | - Sakiko Toyoda
- Research Institute for Bioscience Products and Fine Chemicals, Ajinomoto Co., Inc., Kanagawa, 210-8681, Japan
| | - Hitoshi Murakami
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kanagawa, 210-8681, Japan
| | - Ryo Uchida
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kanagawa, 210-8681, Japan
| | - Reiko Ichikawa
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kanagawa, 210-8681, Japan
| | - Takuya Kikuchi
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kanagawa, 210-8681, Japan
| | - Wataru Sato
- Research Institute for Bioscience Products and Fine Chemicals, Ajinomoto Co., Inc., Kanagawa, 210-8681, Japan
| | - Katsuya Suzuki
- Institute of Food Sciences and Technologies, Ajinomoto Co., Inc., Kanagawa, 210-8681, Japan
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Kim H, Kojima N, Uchida R, Somekawa S, Inoue N, Kobayashi H, Osuka Y. The additive effects of exercise and essential amino acid on muscle mass and strength in community-dwelling older Japanese women with muscle mass decline, but not weakness and slowness: a randomized controlled and placebo trial. Aging Clin Exp Res 2021; 33:1841-1852. [PMID: 32978751 DOI: 10.1007/s40520-020-01713-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 09/08/2020] [Indexed: 01/06/2023]
Abstract
BACKGROUND Exercise and essential amino acid supplementation have been separately shown to improve muscle mass in elderly people, however, the combined, added effects of both interventions have yielded inconsistent results on muscle mass, strength, and physical function improvement. AIMS To investigate the additive effects of exercise and essential amino acid supplementation on muscle mass, strength, and walking ability in older Japanese women with muscle mass decline, but not weakness and slowness. METHODS One hundred thirty women over 65 years of age were defined as having muscle decline and randomly assigned into two groups; exercise and amino acid supplementation (n = 65) or exercise and placebo supplementation (n = 65). The exercise group attended a 60-min comprehensive training program once a week and were encouraged to perform a home-based exercise program. The amino acid or placebo group ingested a 3 g supplement daily for 3-month. Body composition was determined by bioelectrical impedance analysis. Interview data and functional fitness measurements, such as muscle strength and walking ability were collected at baseline and after the 3-month intervention. RESULTS There were no significant group × time interactions in primary outcomes such as muscle mass and strength. However, interactions were observed in the degree of low back discomfort (P = 0.014). Percent change of low back discomfort was significantly greater in exercise + amino acid group compared with exercise + placebo group. CONCLUSIONS The combination of exercise and amino acid supplementation had a beneficial effect on low back discomfort. However, additional effects were not observed in primary outcomes including muscle mass and strength in this population.
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Kaya M, Nakamura K, Nagamine M, Suyama Y, Nakajo M, Uchida R, Hagikura K, Kanda A, Sugiyama K, Sugiyama R, Nakagaki S, Kimura M. A retrospective study comparing interventions by oncology and non-oncology pharmacists in outpatient chemotherapy. Cancer Rep (Hoboken) 2021; 4:e1371. [PMID: 33739629 PMCID: PMC8388162 DOI: 10.1002/cnr2.1371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND The differences in the clinical pharmacy services (CPS) provided by oncology and non-oncology pharmacists have not been sufficiently explained. AIM This study aimed to demonstrate the differences in direct CPS provided by oncology and non-oncology pharmacists for patients and physicians, and to assess the potential impact of these services on medical costs. METHODS We retrospectively examined CPS provided by oncology and non-oncology pharmacists for outpatients who underwent chemotherapy between January and December 2016. RESULTS In total, 1177 and 1050 CPS provided by oncology and non-oncology pharmacists, respectively, were investigated. The rates of interventions performed by oncology and non-oncology pharmacists for physicians-determined treatment were 18.5% and 11.3%, respectively (p < .001). The rates of oncology and non-oncology pharmacist interventions accepted by physicians were 84.6 and 78.8%, respectively (p = .12). Level 4 and Level 5 interventions accounted for 64.6% of all oncology pharmacist interventions and 53.0% of all non-oncology pharmacist interventions (p = .03). The rates of improvement in symptoms from adverse drug reactions among patients resulting from interventions by oncology and non-oncology pharmacists were 89.4 and 72.1%, respectively (p = .02). Conservative assessments of medical cost impact showed that a single intervention by an oncology and by a non-oncology pharmacist saved ¥6355 and ¥3604, respectively. CONCLUSION The results of the present study suggested that CPS by oncology pharmacists enable safer and more effective therapy for patients with cancer and indirectly contribute to reducing health care fees.
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Affiliation(s)
- Michihiro Kaya
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Kazuyo Nakamura
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Makiko Nagamine
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Yukako Suyama
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Michiaki Nakajo
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Ryo Uchida
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Kakeru Hagikura
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Ai Kanda
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Kyohei Sugiyama
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Rina Sugiyama
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Shigeru Nakagaki
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
| | - Midori Kimura
- Department of PharmacyShizuoka General HospitalShizuoka CityJapan
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Murata Y, Kato K, Hosokawa Y, Scarneo SE, Uchida R. Knowledge, Attitude, and Behavior Related to Exertional Heat Illnesses in Japanese College Athletes. Med Sci Sports Exerc 2019. [DOI: 10.1249/01.mss.0000561366.47541.bf] [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: 11/21/2022]
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Hu N, Uchida R, Tran L, Rosenfeld A, Sakurai Y. Feasibility study on the use of 3D silicon microdosimeter detectors for microdosimetric analysis in boron neutron capture therapy. Appl Radiat Isot 2018; 140:109-114. [DOI: 10.1016/j.apradiso.2018.06.022] [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] [Received: 01/15/2018] [Revised: 05/31/2018] [Accepted: 06/28/2018] [Indexed: 11/26/2022]
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Kinoshita-Ise M, Uchida R, Shioiri M, Ohmori Y, Takayama N, Ohyama M. Benefit of electron beam therapy in combination with medium-dose systemic corticosteroid as a palliative treatment for elderly patients with blastic plasmacytoid dendritic cell neoplasm: case report and review of the literature. Clin Exp Dermatol 2018; 44:221-224. [PMID: 29876950 DOI: 10.1111/ced.13645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/30/2018] [Indexed: 11/28/2022]
Affiliation(s)
- M Kinoshita-Ise
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
| | - R Uchida
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
| | - M Shioiri
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan.,Division of Dermatology, Fussa Hospital, Tokyo, Japan
| | - Y Ohmori
- Department of Pathology, Kyorin University School of Medicine, Tokyo, Japan
| | - N Takayama
- Second Department of Internal Medicine, Kyorin University School of Medicine, Tokyo, Japan
| | - M Ohyama
- Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan
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Abstract
Functional movement screen (FMS) has been used to establish normative data and determine potential injury risk for young adults and athletes, but there are few data in elementary school-age children. The purpose of this study was to establish fundamental values for the FMS in elementary school-age mini-basketball players. Secondary purposes were to examine relationships between functional movement patterns and age, peak height velocity (PHV), and body mass index (BMI), and to compare functional movement patterns between boys and girls and between individuals with and without a history of injury. The mean composite FMS score was 16.5 ± 2.2 (16.5 ± 2.4 for boys, 16.5 ± 1.7 for girls). The composite FMS score was positively correlated with age (r = .312) and negatively correlated with the BMI (r = − .371). However, the FMS score was not correlated with PHV or with PHV age. The FMS score was not different between boys and girls or between individuals who reported a previous injury and those who did not. However, boys in the mini-basketball teams performed better than girls on the trunk stability push-up and rotary stability tests. Age and the body mass index were significantly associated with better and poorer functional movement, respectively.
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Affiliation(s)
- Kenji Kuzuhara
- Department of Human Health, Faculty of Human Health, Aichi Toho University, Nagoya, Japan.,Graduate School of Education and Human Development, Nagoya University, Nagoya, Japan
| | - Masashi Shibata
- Laboratory of Exercise Science, College of Nursing Art and Science, University of Hyogo, Hyogo, Japan
| | - Junta Iguchi
- Department of Health and Sports Sciences, Faculty of Health and Medical Sciences, Kyoto Gakuen University, Kyoto, Japan
| | - Ryo Uchida
- Graduate School of Education and Human Development, Nagoya University, Nagoya, Japan
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Abstract
CONTEXT Soccer is the most popular junior sport in the world. In junior sports, injury analysis and injury-prevention measures for players, especially those under 12 years of age, are urgently needed. OBJECTIVE To prospectively study the incidence, sites, types, and mechanisms of injuries in elementary school-aged junior soccer players during games and practices. DESIGN Descriptive epidemiology study. SETTING Elementary school-aged junior soccer teams in Nagoya, Japan. PATIENTS OR OTHER PARTICIPANTS Eighty-nine players in 5 community-based club teams of junior soccer (U-12, age range = 11-12 years; U-11, age range = 10-11 years; U-10, age ≤10 years). MAIN OUTCOME MEASURE(S) Data on all game and practice injuries for the 2013-2014 season were collected using an injury report form. Injury rates were calculated according to injury site, type, and mechanism. RESULTS The overall injury rate was 2.59/1000 athlete-hours (AHs). The game injury rate (GIR; 6.43/1000 AHs) was higher than the practice injury rate (PIR; 1.49/1000 AHs; P < .05). The most common anatomical areas of injury during games and practices were the lower limbs (62.5% and 4.02/1000 AHs versus 38.5% and 0.57/1000 AHs, respectively). Contusions (27.6%, n = 8) were the most frequent type of overall injuries. Most game injuries resulted from body contact (43.8%, 2.81/1000 AHs), whereas most practice injuries resulted from other types of contact (53.8%, 0.83/1000 AHs). CONCLUSIONS The GIRs were higher than the PIRs in Japanese junior soccer players. A lower overall PIR suggested that players in the U-12 age group practiced under appropriate conditions. However, the higher GIR in this age category needs to be decreased.
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Affiliation(s)
- Kenji Kuzuhara
- Department of Human Health, Faculty of Human Health, Aichi Toho University, Nagoya, Japan.,Graduate School of Education and Human Development, Nagoya University, Japan
| | - Masashi Shibata
- College of Nursing Art and Science, University of Hyogo, Japan
| | - Ryo Uchida
- Graduate School of Education and Human Development, Nagoya University, Japan
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Uchida R, Aoki R, Aoki-Yoshida A, Tajima A, Takayama Y. Promoting effect of lactoferrin on barrier function and epithelial differentiation of human keratinocytes. Biochem Cell Biol 2017; 95:64-68. [DOI: 10.1139/bcb-2016-0147] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The purpose of this study was to elucidate the effects of bovine lactoferrin on keratinocyte differentiation and barrier function. Addition of bovine lactoferrin to differentiating HaCaT human keratinocytes led to increased transepithelial electrical resistance (TER), a marker of epithelial barrier function. This elevation was followed by upregulation of two differentiation markers, involucrin and filaggrin. The expression level of sterol regulatory element-binding protein-1 was also enhanced by bovine lactoferrin. The lactoferrin-induced upregulation of involucrin and filaggrin expression were confirmed in normal human epidermal keratinocytes (NHEK). Treatment with SB203580, a p38 mitogen-activated protein kinase (MAPK) α inhibitor, impaired the upregulation of involucrin and filaggrin expression in response to lactoferrin. The elevation of p38 MAPK phosphorylation was further enhanced by lactoferrin in the initial stage of differentiation of HaCaT keratinocytes. The findings suggest that bovine lactoferrin promotes epithelial differentiation by a p38-MAPK-dependent mechanism.
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Affiliation(s)
- Ryo Uchida
- Functional Biomolecules Research Group, National Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 2 Ikenodai, Tsukuba, Ibaraki 305-0901, Japan
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8572, Japan
| | - Reiji Aoki
- Functional Biomolecules Research Group, National Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 2 Ikenodai, Tsukuba, Ibaraki 305-0901, Japan
| | - Ayako Aoki-Yoshida
- Functional Biomolecules Research Group, National Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 2 Ikenodai, Tsukuba, Ibaraki 305-0901, Japan
- Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
| | - Atsushi Tajima
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Ten-noudai, Tsukuba, Ibaraki 305-8572, Japan
| | - Yoshiharu Takayama
- Functional Biomolecules Research Group, National Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 2 Ikenodai, Tsukuba, Ibaraki 305-0901, Japan
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10
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Abstract
CONTEXT Mini-basketball is one of the most popular junior sports in Japan. Mini-basketball-related injuries may increase because of early specialization. However, no reports have been published to date concerning basketball injuries in children younger than 12 years of age. OBJECTIVE To prospectively study the incidence, sites, types, and mechanisms of injuries in mini-basketball teams. DESIGN Descriptive epidemiology study. SETTING Mini-basketball teams in Kobe, Japan. PATIENTS OR OTHER PARTICIPANTS A total of 95 players in 7 community-based mini-basketball club teams (age range, 9 through 12 years). MAIN OUTCOME MEASURE(S) Data on all practice and game injuries for the 2013-2014 season were collected using an injury report form. Injury rates were calculated according to site, type, and mechanism. RESULTS The overall injury rate was 3.83 per 1000 athlete-hours (AHs). The game injury rate ( 12.92/1000 AHs) was higher than the practice injury rate (3.13/1000 AHs; P < .05). The most common anatomical areas of injury during games and practices were the head and neck (36.4%, 4.70/1000 AHs) and the upper limbs (47.8%, 1.50/1000 AHs). Sprains (42.9%, n = 39) were the most common type of injuries overall, followed by contusions (29.7%, n = 27). Most game injuries resulted from body contact (45.5%, 5.87/1000 AHs), whereas most practice injuries resulted from other contact (56.5%, 1.77/1000 AHs). CONCLUSIONS Game injury rates were higher than practice injury rates in Japanese mini-basketball players. The high practice injury rate in this study may be due to specific factors related to growth, such as individual differences in height, or to skills, such as inexperience in ball handling.
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Affiliation(s)
- Kenji Kuzuhara
- Department of Human Health, Faculty of Human Studies, Aichi Toho University, Nagoya, Japan.,Graduate School of Education and Human Development, Nagoya University, Japan
| | - Masashi Shibata
- College of Nursing Art and Science, University of Hyogo, Japan
| | - Ryo Uchida
- Graduate School of Education and Human Development, Nagoya University, Japan
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Abstract
Lactoferrin exerts its biological activities by interacting with receptors on target cells, including LDL receptor-related protein-1 (LRP-1/CD91), intelectin-1 (omentin-1), and Toll-like receptor 4 (TLR4). However, the effects mediated by these receptors are not sufficient to fully explain the many functions of lactoferrin. C-X-C-motif cytokine receptor 4 (CXCR4) is a ubiquitously expressed G-protein coupled receptor for stromal cell-derived factor-1 (SDF-1/CXCL12). Lactoferrin was found to be as capable as SDF-1 in blocking infection by an HIV variant that uses CXCR4 as a co-receptor (X4-tropic HIV), suggesting that lactoferrin interacts with CXCR4. We addressed whether CXCR4 acts as a lactoferrin receptor using HaCaT human keratinocytes and Caco-2 human intestinal cells. We found that bovine lactoferrin interacted with CXCR4-containing lipoparticles, and that this interaction was not antagonized by SDF-1. In addition, activation of Akt in response to lactoferrin was abrogated by AMD3100, a small molecule inhibitor of CXCR4, or by a CXCR4-neutralizing antibody, suggesting that CXCR4 functions as a lactoferrin receptor able to mediate activation of the PI3K-Akt signaling pathway. Lactoferrin stimulation mimicked many aspects of SDF-1-induced CXCR4 activity, including receptor dimerization, tyrosine phosphorylation, and ubiquitination. Cycloheximide chase assays indicated that turnover of CXCR4 was accelerated in response to lactoferrin. These results indicate that CXCR4 is a potent lactoferrin receptor that mediates lactoferrin-induced activation of Akt signaling.
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Affiliation(s)
- Yoshiharu Takayama
- a Functional Biomolecules Research Group, National Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 2 Ikenodai, Tsukuba, Ibaraki 305-0901, Japan
| | - Reiji Aoki
- a Functional Biomolecules Research Group, National Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 2 Ikenodai, Tsukuba, Ibaraki 305-0901, Japan
| | - Ryo Uchida
- a Functional Biomolecules Research Group, National Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 2 Ikenodai, Tsukuba, Ibaraki 305-0901, Japan.,b Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Atsushi Tajima
- b Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Ayako Aoki-Yoshida
- a Functional Biomolecules Research Group, National Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NARO), 2 Ikenodai, Tsukuba, Ibaraki 305-0901, Japan.,c Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan
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Zung S, Souza-Duran FL, Soeiro-de-Souza MG, Uchida R, Bottino CM, Busatto GF, Vallada H. The influence of lithium on hippocampal volume in elderly bipolar patients: a study using voxel-based morphometry. Transl Psychiatry 2016; 6:e846. [PMID: 27351600 PMCID: PMC4931614 DOI: 10.1038/tp.2016.97] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 02/12/2016] [Accepted: 04/15/2016] [Indexed: 12/12/2022] Open
Abstract
Recent studies have demonstrated that lithium (Li) exerts neuronal protective and regenerative effects both in vitro and in vivo. However, the effects of long-term Li treatment in the brain areas associated with memory impairment of elderly bipolar patients are still unknown. The aim of this study was to compare the hippocampal volumes of elderly bipolar patients using Li, elderly bipolar patients not using Li and healthy controls. Sociodemographic, clinical and magnetic resonance imaging data from 30 elderly euthymic bipolar patients who had been using Li for an average of >61 months; 27 elderly euthymic bipolar patients not taking Li for an average of 45 months; and 22 elderly healthy controls were analyzed. Volumetric differences in the hippocampus between groups were investigated with voxel-based morphometry (VBM) based on the Statistical Parametric Mapping technique. No statistical differences in sociodemographic and clinical characteristics and course of bipolar disorder between the two bipolar groups were observed. Using small volume correction in the VBM analysis (analysis of variance (ANOVA)), one voxel cluster of statistical significance was detected in the left hippocampus (P<0.05 corrected for multiple comparisons, extent threshold >10 voxels). Post hoc unpaired t-tests revealed increased left hippocampal volume in the Li-treated group compared with the non-Li-treated group, and decreased left hippocampal volume in the non-Li group relative to controls. Additional exploratory two-group comparisons indicated trends toward reduced right-hippocampal volumes in the non-Li-treated group relative to both the Li-treated group and controls. The findings suggested that the use of Li may influence the volume of the hippocampus, possibly due to its neuroprotective effects.
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Affiliation(s)
- S Zung
- Department of Psychiatry, University of Sao Paulo Medical School (LIM-21 and LIM-23), Sao Paulo, Brazil
| | - F L Souza-Duran
- Department of Psychiatry, University of Sao Paulo Medical School (LIM-21 and LIM-23), Sao Paulo, Brazil
| | - M G Soeiro-de-Souza
- Department of Psychiatry, University of Sao Paulo Medical School (LIM-21 and LIM-23), Sao Paulo, Brazil
| | - R Uchida
- Department of Psychiatry, University of Sao Paulo Medical School (LIM-21 and LIM-23), Sao Paulo, Brazil
| | - C M Bottino
- Department of Psychiatry, University of Sao Paulo Medical School (LIM-21 and LIM-23), Sao Paulo, Brazil
| | - G F Busatto
- Department of Psychiatry, University of Sao Paulo Medical School (LIM-21 and LIM-23), Sao Paulo, Brazil
| | - H Vallada
- Department of Psychiatry, University of Sao Paulo Medical School (LIM-21 and LIM-23), Sao Paulo, Brazil,Institute of Psychiatry, Rua Doutor Ovidio Pires de Campos 785, Sao Paulo, Brazil. E-mail:
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Iida M, Suguri M, Uchida R, Ishibashi M, Kurita H, Won-Jae C, Masuda R, Ohdoi K. Advanced Harvesting System by using a Combine Robot. ACTA ACUST UNITED AC 2013. [DOI: 10.3182/20130327-3-jp-3017.00012] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Tao S, Ohtani N, Uchida R, Miyamoto T, Matsui Y, Yada H, Uemura H, Matsuzaki H, Uemura T, Takeya J, Okamoto H. Relaxation dynamics of photoexcited excitons in rubrene single crystals using femtosecond absorption spectroscopy. Phys Rev Lett 2012; 109:097403. [PMID: 23002882 DOI: 10.1103/physrevlett.109.097403] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Revised: 04/06/2012] [Indexed: 06/01/2023]
Abstract
The relaxation dynamics of an exciton in rubrene was investigated by femtosecond absorption spectroscopy. Exciton relaxation to a self-trapped state occurs via the coherent oscillation with 78 cm(-1) due to a coupled mode of molecular deformations with phenyl-side-group motions and molecular displacements. From the temperature dependence of the decay time of excitons, the energy necessary for an exciton to escape from a self-trapped state is evaluated to be ~35 meV (~400 K). As a result, a self-trapped exciton is stable at low temperatures. At room temperature, excitons can escape from a self-trapped state and, subsequently, they are dissociated to charged species. The exciton dissociation mechanism is discussed on the basis of the results.
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Affiliation(s)
- S Tao
- Department of Advanced Materials Science, University of Tokyo, Kashiwa, Chiba, Japan
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Hasegawa T, Tateishi C, Uchida R, Nishi C, Furudoi S, Shibuya Y, Yokoo S, Komori T. Osseous healing after a sagittal splitting ramus osteotomy. Int J Oral Maxillofac Surg 2011; 40:475-82. [DOI: 10.1016/j.ijom.2010.12.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2010] [Revised: 11/30/2010] [Accepted: 12/21/2010] [Indexed: 11/15/2022]
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16
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Furusawa K, Tokuhiro A, Sugiyama H, Ikeda A, Tajima F, Genda E, Uchida R, Tominaga T, Tanaka H, Magara A, Sumida M. Incidence of symptomatic autonomic dysreflexia varies according to the bowel and bladder management techniques in patients with spinal cord injury. Spinal Cord 2010; 49:49-54. [PMID: 20697419 DOI: 10.1038/sc.2010.94] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
STUDY DESIGN A retrospective, multicenter study. OBJECTIVES To investigate the relationship between bowel and bladder management methods and symptomatic autonomic dysreflexia (AD) during hospitalization in patients with spinal cord injury (SCI). SETTING Twenty-eight Rosai hospitals in Japan. METHODS The study subjects were 571 patients with SCI who had been admitted to 28 Rosai hospitals between April 1997 and March 2007 for rehabilitation therapy and fulfilled the following criteria: (1) SCI at or above sixth thoracic level, (2) discharged from hospital after more than 4 months of admission for initial injury and (3) lack of pressure ulcers, deep venous thrombosis, ureteral and renal stones or heterotopic ossification throughout hospitalization to exclude possible influence of these complications on cardiovascular reflexes. The study subjects were examined for the incidence of symptomatic AD according to age, sex, ASIA Impairment Scale, injury level, bowel and bladder management techniques at discharge. RESULTS The Rosai Hospital registry included 3006 persons with SCI during 1997-2007, and 571 patients fulfilled the above criteria. The highest incidence of symptomatic AD was diagnosed in subjects using reflex voiding and in those using manual removal of stool. By contrast, the lowest incidence of symptomatic AD was in those on continent spontaneous voiding and continent spontaneous defecation. CONCLUSION Medical staff should evaluate the presence of AD in patients with SCI at or above the T6 level under bladder and bowel management such as reflex voiding and manual removal of stool.
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Affiliation(s)
- K Furusawa
- Kibikogen Rehabilitation Center for Employment injuries, Okayama, Japan.
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17
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Fuchida SI, Yamada N, Uchida R, Okano A, Okamoto M, Ochiai N, Shimazaki C. Malignant lymphoma presenting as a cardiac tumor and superior vena caval syndrome successfully treated by haploidentical stem cell transplantation. Leuk Lymphoma 2009; 46:1517-21. [PMID: 16194899 DOI: 10.1080/10428190500126596] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
A 16 year-old male with B-cell non-Hodgkin's lymphoma presenting as a cardiac tumor and superior vena caval (SVC) syndrome received a haploidentical stem cell transplant (SCT) from his mother after conventional and salvage chemotherapy. He received additional radiation therapy for the residual tumor and is alive and well on day 640 after transplantation. Malignant lymphoma presenting as a cardiac tumor, including primary cardiac lymphoma, is rare. Although many reports have shown the poor prognosis of cardiac lymphoma, our case suggests that allogeneic haploidentical SCT might be useful for the treatment of aggressive cardiac lymphoma.
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Affiliation(s)
- Shin-Ichi Fuchida
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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18
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Ochiai N, Yamada N, Uchida R, Fuchida SI, Okano A, Okamoto M, Ashihara E, Inaba T, Shimazaki C. Nitrogen-containing bisphosphonate incadronate augments the inhibitory effect of farnesyl transferase inhibitor tipifarnib on the growth of fresh and cloned myeloma cellsin vitro. Leuk Lymphoma 2009; 46:1619-25. [PMID: 16236616 DOI: 10.1080/10428190500221223] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
RAS gene mutations occur in 30 - 40% of multiple myeloma (MM) patients. Farnesylation is the first step in the post-translational modification of RAS proteins. Tipifarnib is a potent farnesyl transferase inhibitor, and incadronate prevents post-translational prenylation of GTP-binding proteins such as RAS proteins. We examined the effect of tipifarnib in combination with incadronate on the growth of fresh and cloned myeloma cells in vitro. Tipifarnib inhibited the growth of myeloma cells, and this inhibition was intensified when tipifarnib was combined with incadronate. Tipifarnib, in combination with incadronate, may have some benefits in MM patients.
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Affiliation(s)
- Naoya Ochiai
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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19
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Uchida R, Ashihara E, Sato K, Kimura S, Kuroda J, Takeuchi M, Kawata E, Taniguchi K, Okamoto M, Shimura K, Kiyono Y, Shimazaki C, Taniwaki M, Maekawa T. γδT cells kill myeloma cells by sensing mevalonate metabolites and ICAM-1 molecules on cell surface. Biochem Biophys Res Commun 2007; 354:613-8. [PMID: 17250803 DOI: 10.1016/j.bbrc.2007.01.031] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2007] [Accepted: 01/08/2007] [Indexed: 11/19/2022]
Abstract
We evaluated the mechanism of recognition of myeloma cells by gammadeltaT cells. The expanded gammadeltaT cells killed RPMI8226 and U266 myeloma cells in a gammadeltaT-cell dose-dependent manner. Pretreatment of myeloma cells with zoledronic acid or mevastatin showed that gammadeltaT cells kill myeloma cells by recognizing the mevalonate metabolites. The expression level of intercellular cell adhesion molecule-1 (ICAM-1) on myeloma cells correlates with the cytotoxicity by gammadeltaT cells. Pretreatment of RPMI8226 and U266 with an anti-ICAM-1 monoclonal antibody inhibited their cytolysis. Moreover, AMO-1 myeloma cells transfected with of human ICAM-1 cDNA were susceptible to gammadeltaT cells compared to parental AMO-1 cells. In conclusion, gammadeltaT cells recognize the mevalonate metabolites and ICAM-1 on myeloma cells.
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Affiliation(s)
- Ryo Uchida
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
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20
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Shimura K, Shimazaki C, Taniguchi K, Akamatsu S, Okamoto M, Uchida R, Nomura KI, Inaba T, Horiike S, Kanamura N, Taniwaki M. Hyperbaric oxygen in addition to antibiotic therapy is effective for bisphosphonate-induced osteonecrosis of the jaw in a patient with multiple myeloma. Int J Hematol 2007; 84:343-5. [PMID: 17118761 DOI: 10.1532/ijh97.06110] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [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: 11/20/2022]
Abstract
A 60-year-old man with multiple myeloma (MM) (IgG-kappa, stage IIIA) had been treated with minodronate at 6 mg orally as a phase 1 clinical trial for myeloma bone disease for 13 months (total dose, 4032 mg). Then he received incadronate at 10mg intravenously every 1 to 4 weeks (total dose, 350 mg). In July 2005, he complained of mild right mandibular pain, and bone scintigram showed a hot spot at the right side of the mandible. Panoramic radiograph showed osteonecrosis of the jaw (ONJ) and axial and 3-dimensional computed tomography confirmed ONJ. Oral examination showed massive gingival swelling of the right side of the mandible without exposed necrotic bone. He was given clarithromycin in addition to levofloxacin, followed by hyperbaric oxygen (HBO) therapy, which resulted in the complete disappearance of the pain. This is a first reported case of ONJ induced by incadronate. The present case suggests that early detection of ONJ by regular dental check-ups is important in the management of patients with MM who have received bisphosphonate therapy, and HBO in combination with antibiotic therapy is effective in the early stage of ONJ.
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Affiliation(s)
- Kazuho Shimura
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
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21
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Okamoto M, Inaba T, Yamada N, Uchida R, Fuchida SI, Okano A, Shimazaki C, Taniwaki M. Expression and role of MHC class I-related chain in myeloma cells. Cytotherapy 2006; 8:509-16. [PMID: 17050256 DOI: 10.1080/14653240600957586] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND The molecular mechanism of natural killer (NK) cell cytotoxicity to myeloma cells remains unclear. We investigated whether MHC class I-related chain (MIC), a ligand of NKG2D that is an activating NK cell receptor, is involved in the cytotoxicity of NK cells toward myeloma cells, and examined the effects of various drugs on the cytotoxicity. METHODS Two human myeloma cell lines and fresh myeloma cells from 10 patients were used. MIC expression was examined by flow cytometry and reverse transcription (RT)-PCR. NK cell cytotoxicity was examined using a 51Cr-release assay. The effects of various drugs, including thalidomide, all-trans retinoic acid, dexamethasone, IFN-alpha and incadronate, on the MIC expression and NK cell cytotoxicity were examined. RESULTS MIC was highly expressed on the human myeloma cell lines U266 and RPMI-8226 and in myeloma cells of one of 10 patients examined. MIC expression on these cells was not changed by various drugs except IFN-alpha, by which MIC expression was down-regulated. Although MIC and HLA class I molecules were similarly expressed at high levels on both cell lines, U266 was sensitive to NK cells whereas RPMI-8226 was not. Furthermore, cytolysis by NK cells was not inhibited by the addition of anti-MIC Ab or decreased expression of MIC caused by IFN-alpha. DISCUSSION MIC plays a role in the cytolysis by NK cells in multiple myeloma.
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Affiliation(s)
- M Okamoto
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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22
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Uchida R, Nakano S, Namura K, Yamada N, Fuchida SI, Okano A, Okamoto M, Ochiai N, Shimazaki C. Is splenectomy a contraindication for patients with myelodysplastic syndromes complicated by splenomegaly? Ann Hematol 2005; 85:198-9. [PMID: 16231141 DOI: 10.1007/s00277-005-0003-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2005] [Accepted: 08/13/2005] [Indexed: 11/27/2022]
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23
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Ochiai N, Yamada N, Uchida R, Fuchida SI, Okano A, Hatsuse M, Okamoto M, Ashihara E, Shimazaki C. Combination Therapy with Thalidomide, Incadronate, and Dexamethasone for Relapsed or Refractory Multiple Myeloma. Int J Hematol 2005; 82:243-7. [PMID: 16207598 DOI: 10.1532/ijh97.05049] [Citation(s) in RCA: 13] [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: 12/12/2022]
Abstract
The feasibility and efficacy of a combination of thalidomide, incadronate, and dexamethasone (TID) were studied in 12 patients with relapsed or refractory multiple myeloma. The protocol, consisting of 300 mg/day of thalidomide administered orally, intravenous incadronate (10 mg/day) administered weekly, and 12 mg/day dexamethasone for 4 days, was repeated every 3 weeks. Evaluations of efficacy and toxicity were carried out every 3 weeks and were continued for 3 cycles. Three patients were excluded during the study because of apnea, severe somnolence, and pancytopenia. Of 9 evaluated patients, the partial responses achieved in 3 patients and the minor responses achieved in 4 patients corresponded to a response rate of 78% according to the criteria of the European Group for Blood and Marrow Transplantation. In addition, painful osteolytic symptoms improved rapidly after 1 cycle of TID therapy in the 10 patients evaluated. These data suggest that TID is a feasible and promising therapeutic approach for refractory and relapsed multiple myeloma.
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Affiliation(s)
- Naoya Ochiai
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, Japan
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24
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Nakano S, Namura K, Uchida R, Fuchida SI, Okano A, Okamoto M, Shimazaki C. The unbalanced chromosomal translocation der(15)t(1;15)(q21;p13) in multiple myeloma. Int J Hematol 2005; 81:437-8. [PMID: 16158828 DOI: 10.1532/ijh97.05040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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25
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Asamura H, Uchida R, Takayanagi K, Ota M, Fukushima H. Allele frequencies of the six miniSTR loci in a population from Japan. Int J Legal Med 2005; 120:182-4. [PMID: 16012828 DOI: 10.1007/s00414-005-0015-4] [Citation(s) in RCA: 20] [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] [Received: 03/31/2005] [Accepted: 06/14/2005] [Indexed: 11/30/2022]
Abstract
Allele frequencies and forensic parameters for the six miniSTR loci D1S1677, D2S441, D4S2364, D10S1248, D14S1434, and D22S1045 were investigated in a sample of 142 unrelated healthy Japanese individuals. The polymerase chain reaction (PCR) products contained within the six loci were less than 119 bp in size. The frequency distributions in the six short tandem repeat (STR) loci showed no deviations from Hardy-Weinberg equilibrium expectations. The accumulated powers of discrimination and power of exclusion for the six loci were 0.999998 and 0.98, respectively. It was thus considered that due to the small PCR products and the moderate degree of polymorphism, analysis with use of the six miniSTR loci was highly beneficial for the forensic analysis of degraded DNA.
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Affiliation(s)
- H Asamura
- Department of Legal Medicine, Shinshu University School of Medicine, Matsumoto, Nagano, Japan.
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26
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Shimazaki C, Uchida R, Nakano S, Namura K, Fuchida SI, Okano A, Okamoto M, Inaba T. High serum bone-specific alkaline phosphatase level after bortezomib-combined therapy in refractory multiple myeloma: possible role of bortezomib on osteoblast differentiation. Leukemia 2005; 19:1102-3. [PMID: 15830008 DOI: 10.1038/sj.leu.2403758] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Takahashi R, Nakano S, Namura K, Yamada N, Uchida R, Fuchida SI, Okano A, Okamoto M, Ochiai N, Shimazaki C. Plasmacytoma of the urinary bladder in a renal transplant recipient. Int J Hematol 2005; 81:255-7. [PMID: 15814337 DOI: 10.1532/ijh97.04148] [Citation(s) in RCA: 16] [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: 01/22/2023]
Abstract
A 28-year-old woman underwent renal transplantation in 1993. Eight years later, she experienced macroscopic hematuria, and Epstein-Barr virus-negative solitary extramedullary plasmacytoma (EMP) of the urinary bladder was diagnosed. After the reduction of immunosuppressive therapy, she received combined chemotherapy, resulting in complete tumor disappearance. However, 10 months later, she relapsed with aggressive multiple EMP and died of disease progression in 2003. This report is the first of a case of solitary EMP of the urinary bladder appearing as posttransplantation plasma cell dyscrasias after renal transplantation.
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28
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Okano A, Nakano S, Namura K, Yamada N, Uchida R, Fuchida SI, Okamoto M, Ochiai N, Shimazaki C. Unique three-way translocation, t(3;14;18)(q27;q32;q21), in follicular lymphoma. ACTA ACUST UNITED AC 2005; 159:174-6. [PMID: 15899393 DOI: 10.1016/j.cancergencyto.2004.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2004] [Revised: 10/07/2004] [Accepted: 10/25/2004] [Indexed: 11/27/2022]
Abstract
A 43-year-old woman was diagnosed as having stage IV follicular lymphoma. Phenotypically, the lymphoma cells were CD5(-), CD10(+), CD19(+), CD20(+), CD23(-), HLA-DR(+), and IgM-lambda(+). Conventional chromosomal analysis showed a three-way t(3;14;18)(q27;q32;q21) in the lymphoma cells, which was confirmed by spectral karyotyping (SKY) and fluorescence in situ hybridization (FISH). Immunohistochemistry revealed that both BCL2 and BCL6 proteins were expressed in the lymphoma cells, whereas only the BCL6 gene, and not the BCL2 gene, was rearranged by Southern blotting. The patient received combination chemotherapy and has been well for 3 years. This is the first reported case showing a three-way translocation involving 2 major lymphoma-specific abnormalities, 3q27 and t(14;18)(q32;q21).
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MESH Headings
- Adult
- Blotting, Southern
- Chromosomes, Human, Pair 14
- Chromosomes, Human, Pair 18
- Chromosomes, Human, Pair 3
- Female
- Humans
- In Situ Hybridization, Fluorescence
- Karyotyping
- Lymphoma, Follicular/genetics
- Translocation, Genetic
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Affiliation(s)
- Akira Okano
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan.
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29
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Fuchida S, Nakano S, Yamada N, Uchida R, Okano A, Okamoto M, Maruya E, Saji H, Shimazaki C. Successful non-T-cell-depleted HLA-haploidentical stem cell transplantation (SCT) with reduced-intensity conditioning from a second child for late graft failure after the first HLA-haploidentical SCT for MDS/overt leukemia based on feto-maternal microchimerism. Bone Marrow Transplant 2005; 35:1031-2. [PMID: 15806124 DOI: 10.1038/sj.bmt.1704949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Yamada N, Uchida R, Fuchida SI, Okano A, Okamoto M, Ochiai N, Iwasa H, Shimazaki C. CD5+ Epstein-Barr virus-positive intravascular large B-cell lymphoma in the uterus co-existing with huge myoma. Am J Hematol 2005; 78:221-4. [PMID: 15726593 DOI: 10.1002/ajh.20288] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [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: 11/09/2022]
Abstract
A 42-year-old female underwent hysterectomy because of a huge uterine mass. Histologically, she was diagnosed as having intravascular lymphoma co-existing with myoma uteri. Lymphoma cells were large in size and were positive for CD5, CD20, CD45, CD79a, lambda light chain, and EBV but were negative for CD3 and cyclin D1. No other organs except for the adjoining bilateral ovaries seemed to be affected by the lymphoma cells. She received the combination chemotherapy (cyclophosphamide, doxorubicin, vincristine, and prednisolone) together with rituximab and has been well without definite disease progression. So far, this is the first case of CD5+ EBV+ intravascular large B-cell lymphoma (CD5+ EBV+ IVLBL) in the uterus of a patient who was incidentally diagnosed and successfully treated.
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Affiliation(s)
- Noriko Yamada
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan
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31
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Shimazaki C, Fuchida SI, Ochiai N, Nakano S, Yamada N, Uchida R, Okamoto M, Okano A, Inaba T, Maruya E, Saji H. Non-T-cell-depleted HLA-haploidentical stem cell transplantation after reduced-intensity conditioning in advanced haematological malignancies based on feto-maternal microchimerism. Br J Haematol 2004; 127:474-5. [PMID: 15521926 DOI: 10.1111/j.1365-2141.2004.05228.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Okamoto M, Nakano S, Namura K, Yamada N, Uchida R, Fuchida SI, Okano A, Ochiai N, Shimazaki C. CD5-negative chronic lymphocytic leukemia with indolent clinical course and autoimmune thrombocytopenia, successfully treated with rituximab. Am J Hematol 2004; 77:413-5. [PMID: 15551407 DOI: 10.1002/ajh.20223] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A 59-year-old male with lymphocytosis and thrombocytopenia was asymptomatic without lymphadenopathy or hepatosplenomegaly over 10 years. He was admitted to our hospital because his thrombocytopenia had worsened. The clonal lymphocytes appeared as regular small mature lymphocytes on blood films, and bone marrow biopsy showed diffuse infiltration of mature lymphocytes. However, megakaryocytes also presented. The immunophenotypic analysis by flow cytometry revealed that the lymphocytes were positive for CD19, CD20, CD22, and surface membrane immunoglobulin (SmIg) M and D-lambda and were negative for CD5, CD10, CD11c, CD23, and other lineage markers. Expression levels of CD20 and SmIg were strong. The markers were consistent with CD5- CLL with autoimmune thrombocytopenia. He received rituximab, and a rapid decrease of lymphocytes with concomitant increase of platelets was observed. A few cases of CD5- CLL with a stable clinical course have been reported, thought to be B lymphocytosis of undetermined significance (MLUS). This is the first report of CD5- CLL with indolent clinical course associated with autoimmune thrombocytopenia, successfully treated with rituximab.
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MESH Headings
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal, Murine-Derived
- Antineoplastic Agents/therapeutic use
- Biomarkers/analysis
- CD5 Antigens/analysis
- CD5 Antigens/immunology
- Flow Cytometry
- Humans
- Leukemia, Lymphocytic, Chronic, B-Cell/complications
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/immunology
- Male
- Middle Aged
- Purpura, Thrombocytopenic, Idiopathic/complications
- Purpura, Thrombocytopenic, Idiopathic/immunology
- Rituximab
- Treatment Outcome
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Affiliation(s)
- Masashi Okamoto
- Division of Hematology and Oncology, Department of Medicine, Kyoto Prefectural University of Medicine, Kyoto, Japan.
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33
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Okamoto M, Inaba T, Uchida R, Fuchida S, Ochiai N, Okano A, Ashihara E, Inagaki H, Nakamura S, Shimazaki C. Human immunodeficiency virus (HIV)-negative, API2-MALT1 fusion-negative bronchus-associated lymphoid tissue (BALT) lymphoma in a young male. Leuk Lymphoma 2004; 45:2165-8. [PMID: 15370267 DOI: 10.1080/1042819042000219449] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A 22-year-old male presented with multiple bilateral nodular shadows in the lungs by chest radiograph. He had been asymptomatic and showed no significant abnormal findings in laboratory examinations. He underwent a diagnostic partial lobectomy, and was diagnosed as having primary pulmonary mucosa-associated lymphoid tissue (MALT) lymphoma; i.e. bronchus-associated lymphoid tissue (BALT) lymphoma/BALToma. Neither t(11;18)(q21;q21) chromosomal translocation nor API2-MALT1 chimeric transcript was found at diagnosis. Epstein-Barr virus (EBV) was also not detected in lymphoma cells. He had been a nonsmoker, and had also never shown any associated autoimmune disorders, chronic inflammatory lung diseases or human immunodeficiency virus (HIV) infection. However, he had suffered from moderate atopic dermatitis on his arms from childhood. It appears necessary to clarify whether atopy might play a role in the pathogenesis of API2-MALT1(-) BALT lymphoma for HIV(-) young patients who do not exhibit any other antecedent chronic antigenic stimulations.
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MESH Headings
- Adult
- Antibodies, Monoclonal/therapeutic use
- Antibodies, Monoclonal, Murine-Derived
- Bronchial Neoplasms/diagnosis
- Bronchial Neoplasms/etiology
- Bronchial Neoplasms/therapy
- Cytogenetic Analysis
- HIV Seronegativity
- Humans
- Immunophenotyping
- Lymphoma, B-Cell/diagnosis
- Lymphoma, B-Cell/etiology
- Lymphoma, B-Cell/therapy
- Lymphoma, Non-Hodgkin/diagnosis
- Lymphoma, Non-Hodgkin/etiology
- Lymphoma, Non-Hodgkin/therapy
- Male
- Oncogene Proteins, Fusion
- Polymerase Chain Reaction
- Remission Induction
- Rituximab
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Affiliation(s)
- Masashi Okamoto
- Second Department of Medicine, Kyoto Prefectural University of Medicine, Kawaramachi-hirokoji, Kamigyo-ku, Japan.
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34
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Crippa JAS, Uchida R, Busatto GF, Guimarães FS, Del-Ben CM, Zuardi AW, Santos AC, Araújo D, McGuire PK, Graeff FG. The size and prevalence of the cavum septum pellucidum are normal in subjects with panic disorder. Braz J Med Biol Res 2004; 37:371-4. [PMID: 15060705 DOI: 10.1590/s0100-879x2004000300013] [Citation(s) in RCA: 13] [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: 11/21/2022] Open
Abstract
Panic disorder is thought to involve dysfunction in the septohippocampal system, and the presence of a cavum septum pellucidum might indicate the aberrant development of this system. We compared the prevalence and size of cavum septum pellucidum in 21 patients with panic disorder and in 21 healthy controls by magnetic resonance imaging. The length of the cavum septum pellucidum was measured by counting the number of consecutive 1-mm coronal slices in which it appeared. A cavum septum pellucidum of >6 mm in length was rated as large. There was no significant difference in the proportion of patients (16 of 21 or 76.2%) and controls (18 of 21 or 85.7%) with a cavum septum pellucidum (P=0.35, Fisher's exact test, one-tailed), and no members of either group had a large cavum septum pellucidum. The mean cavum septum pellucidum rating in the patient and control groups was 1.81 (SD=1.50) and 2.09 (SD=1.51), respectively. There were also no significant differences between groups when we analyzed cavum septum pellucidum ratings as a continuous variable (U=196.5; P=0.54). Across all subjects there was a trend towards a higher prevalence of cavum septum pellucidum in males (100%, 10 of 10) than females (75%, 24 of 32; P=0.09, Fisher's exact test, one-tailed). Thus, we conclude that, while panic disorder may involve septo-hippocampal dysfunction, it is not associated with an increased prevalence or size of the cavum septum pellucidum.
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Affiliation(s)
- J A S Crippa
- Departamento de Neurologia, Psiquiatria e Psicologia Médica, Facudade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, SP, Brasil.
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35
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Ochiai N, Uchida R, Fuchida SI, Okano A, Okamoto M, Ashihara E, Inaba T, Fujita N, Matsubara H, Shimazaki C. Effect of farnesyl transferase inhibitor R115777 on the growth of fresh and cloned myeloma cells in vitro. Blood 2003; 102:3349-53. [PMID: 12842991 DOI: 10.1182/blood-2003-03-0851] [Citation(s) in RCA: 37] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Ras gene mutations occur in 30% to 40% of patients with multiple myeloma (MM), and farnesylation is the first and most important step in the posttranslational modification of Ras proteins. R115777 is a newly synthesized potent farnesyl transferase inhibitor (FTI) and has recently demonstrated significant antitumor activities in vitro and in vivo. Therefore, we examined the effect of R115777 on the growth of fresh and cloned myeloma cells in vitro. R115777 inhibited the growth of fresh and cloned myeloma cells dose dependently, and effects were not dependent on the status of N-Ras mutation in fresh myeloma cells. Flow cytometric analysis using annexin V and 7-aminoactinomycin D (7AAD) showed that R115777 induced apoptosis of 2 of 3 myeloma cell lines at a concentration of 1.0 x 10(-8) M. R115777 appears to be a potent inducer of apoptosis, and its effects depend on the status of Ras mutation in cloned myeloma cells but not on the status of N-Ras mutation in fresh myeloma cells. This is the first report that demonstrates the relationship between the N-Ras mutation in fresh myeloma cells and the effect of R115777. R115777 might have some benefit in the treatment of myeloma patients.
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Affiliation(s)
- Naoya Ochiai
- Department of Medicine, Division of Hematology and Oncology, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyo-ku, Kyoto, 602-8566, Japan.
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36
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Kubota Y, Tani S, Uchida R. Solution structure of the DNA complex with a quinacrine-netropsin hybrid molecule by NMR spectroscopy. Nucleic Acids Symp Ser 2003:235-6. [PMID: 12903355 DOI: 10.1093/nass/44.1.235] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
The solution structures of 1:1 complexes of a quinacrine-netropsin hybrid molecule with the self-complementary DNA duplexes, d(CGCGAATTCGCG)2 and d(CGAATTCG)2, have been studied by one- and two-dimensional 1H NMR spectroscopy. The NOE data indicate that the acridine ring of the hybrid intercalates into the 5'-GpA step and its netropsin moiety spans the minor groove of the central AATT region.
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Affiliation(s)
- Y Kubota
- Department of Chemistry, Faculty of Science, Yamaguchi University, Yamaguchi 753-8512, Japan
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37
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Shimazaki C, Ochiai N, Uchida R, Okano A, Fuchida SI, Ashihara E, Inaba T, Fujita N, Maruya E, Nakagawa M. Non-T-cell-depleted HLA haploidentical stem cell transplantation in advanced hematologic malignancies based on the feto-maternal michrochimerism. Blood 2003; 101:3334-6. [PMID: 12480695 DOI: 10.1182/blood-2002-09-2883] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.2] [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: 11/20/2022] Open
Abstract
Feto-maternal microchimerism suggests that immunologic tolerance exists between mother and fetus. Based on this hypothesis, we performed haploidentical stem cell transplantation (SCT) without T-cell depletion (TCD) in 5 patients with advanced hematologic malignancies. HLA incompatibilities for graft-versus-host disease (GVHD) direction included 3-loci mismatches in 4 patients, and 2-loci mismatches in one patient. Recipient chimeric cells were detected in all patients. The prophylaxis against GVHD was tacrolimus with minidose methotrexate. Engraftment was obtained in all patients. An acute GVHD of less than or equal to grade 2 developed in all patients except one who developed tacrolimus encephalopathy. Two patients died, 1 from fungal pneumonia and 1 from disease progression. The other 3 patients survived, with one patient in complete remission. These observations suggest that haploidentical SCT based on the feto-maternal microchimerism without TCD is possible.
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Affiliation(s)
- Chihiro Shimazaki
- Second Department of Medicine, Kyoto Prefectural University of Medicine, Japan.
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38
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Shimazaki C, Ochiai N, Uchida R, Fuchida SI, Okano A, Ashihara E, Inaba T, Fujita N, Nakagawa M. Intramuscular edema as a complication of treatment with imatinib. Leukemia 2003; 17:804-5. [PMID: 12682642 DOI: 10.1038/sj.leu.2402868] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ochiai N, Shimazaki C, Uchida R, Fuchida SI, Okano A, Ashihara E, Inaba T, Fujita N, Nakagawa M. Disseminated infection due to Scedosporium apiospermum in a patient with acute myelogenous leukemia. Leuk Lymphoma 2003; 44:369-72. [PMID: 12688361 DOI: 10.1080/1042819021000029957] [Citation(s) in RCA: 23] [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: 10/27/2022]
Abstract
A 62-year-old man diagnosed with acute myelogenous leukemia which had developed from myelodysplastic syndrome received cytarabine and idarubicine as an induction therapy. The patient developed pneumonia and bacterial sepsis during profound neutropenia. Fever and sepsis improved by using many anti-bacterials and anti-fungals but he became febrile again and complained of severe lumbar pain. 67Ga scintigram showed abnormal uptake in the lumbar vertebra and left sternoclavicular joint, suggesting a diagnosis of discitis and osteomyelitis in the lumbar vertebra and sternoclavicular arthritis. We biopsied the site several times but culture of the biopsy specimen could not isolate any pathogens, and high fever persisted for about 10 months despite administration of various anti-bacterials and anti-fungals. Finally we inserted a catheter into the abscess at the iliopsoas muscle and Scedosporium apiospermum was isolated in the bloody pus obtained from the catheter. Itraconazole and amphotericin B were restarted, and the high fever and lumbar pain improved rapidly. The findings of S. apiospermum infection in this patient emphasizes the importance of being aware of this pathogen in patients with hematologic malignancy during the neutropenic phase.
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Affiliation(s)
- Naoya Ochiai
- Second Department of Medicine, Kyoto Prefectural University of Medicine, 465 Kajii-cho, Kawaramachi-Hirokoji, Kamigyoku, Kyoto 602-8566, Japan.
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40
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Ogihara N, Ebihara S, Kawamura W, Okamoto M, Sakai T, Takiguchi K, Morita T, Uchida R, Matsuyama Y, Hayashi Y, Arakawa Y, Kikuchi M. Characterization of the portal signal in a nonsteady hyperglycemic state in conscious dogs. Am J Physiol Endocrinol Metab 2003; 284:E148-55. [PMID: 12388150 DOI: 10.1152/ajpendo.00079.2002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
To characterize the "portal signal" in a nonsteady hyperglycemic state, the kinetic relationship between net hepatic glucose balance (NHGB) and either hepatic glucose load (HGL) or plasma insulin level was determined during glucose infusion using a catheter technique in 36 conscious dogs. Glucose was infused intraportally (Po group) and peripherally (Pe group) at 39, 56, and 83 micromol x kg(-1) x min(-1) over 2 h. There was a linear relationship between mean NHGB and either mean HGL or plasma insulin levels at each rate in either delivery (HGL: Po r = 0.99, Pe r = 0.95; insulin: Po r = 99, Pe r = 0.79). The threshold levels for net hepatic glucose uptake were 3.8 and 11.7 mmol/l for plasma glucose and 65 and 392 pmol/l for plasma insulin, respectively. The slope of the regression line against the abscissa was four times larger in portal than in peripheral delivery (HGL: Po 0.20 vs. Pe 0.05, P < 0.05; insulin: Po 0.19 vs. Pe 0.04, P < 0.05). These results suggest that the portal signal overrules the threshold of glucose for hepatic uptake by increasing hepatic extraction rate in a nonsteady hyperglycemic state.
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Affiliation(s)
- N Ogihara
- Department of Endocrinology and Metabolism, Institute for Adult Diseases, Asahi Life Foundation, Tokyo 160-0023, Japan
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Ochiai N, Shimazaki C, Uchida R, Fuchida SI, Okano A, Ashihara E, Inaba T, Fujita N, Adachi Y, Nishio A, Nakagawa M. [Thalidomide therapy in patients with refractory or relapsed multiple myeloma]. Rinsho Ketsueki 2002; 43:1045-9. [PMID: 12607993] [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: 03/01/2023]
Abstract
We treated seven refractory or relapsed myeloma patients resistant to conventional chemotherapy with thalidomide. We started thalidomide at 100 mg daily and the dose was increased up to 300 mg if the patient could tolerate it. The patients were evaluated at four weeks and 12 mg of dexamethasone was added for four days when the patient failed to respond to thalidomide treatment. One patient was excluded from the study because of general fatigue. Two of the six patients responded to thalidomide alone and three of the remaining four patients responded to the combination with dexamethasone. The most common adverse effect was sleepiness which was seen in three patients. Two patients showed pancytopenia (Grade 3), constipation and skin eruption. Of the six patients four needed reduction of the thalidomide dose to 200 mg because of adverse effects. Plasma levels of TNF-alpha, IL-6, bFGF and VEGF were measured before and after four weeks. High plasma bFGF levels were seen in responding patients. In conclusion, treatment with thalidomide alone or in combination with dexamethasone is feasible and effective in refractory or relapsed myeloma patients. Further study is required to clarify the role of thalidomide in the therapeutic strategy for multiple myeloma.
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Affiliation(s)
- Naoya Ochiai
- Kyoto Prefectural University of Medicine, Second Department of Medicine
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42
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Okamoto M, Ogihara N, Kawamura W, Ebihara S, Takiguchi K, Morita T, Uchida R, Yamaguchi J, Sakai T, Okuda Y, Hayashi Y, Arakawa Y, Kikuchi M. Comparison of insulinotrophic actions of nateglinide with glibenclamide dissociated from absorption in conscious dogs. Metabolism 2002; 51:575-81. [PMID: 11979388 DOI: 10.1053/meta.2002.31981] [Citation(s) in RCA: 4] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Nateglinide is more rapidly absorbed than glibenclamide. Therefore, the different absorption kinetics of both drugs were eliminated by intraportal administration in conscious fasted dogs. The plasma insulin profiles were compared under similar kinetic changes in plasma drug concentrations. After a priming dose of nateglinide (1 mg/kg. 5 min) or glibenclamide (40 microg/kg. 5 min), plasma drug concentrations reached a peak at 4 minutes (nateglinide, 80 +/- 5 micromol/L, n = 6 and glibenclamide, 263 +/- 60 nmol/L, n = 6) followed by a sustained level at approximately 30% of the peak concentration at 30 minutes. Nateglinide led to a rapid and constant reduction in arterial glucose of approximately 30% basal, while glibenclamide promoted a gradual decrease to approximately 50% basal at 120 minutes. An increase in plasma insulin level by nateglinide of 4 times basal (218 +/- 58 pmol/L v 47 +/- 3 pmol/L, P <.05, n = 6) occurred at 6 to 10 minutes followed by sustained release of 1.4 times basal (67 +/- 15 pmol/L, n = 6). The insulin surge was more than doubled (484 +/- 209 pmol/L, n = 6) under a euglycemic clamp. Insulin release by glibenclamide increased gradually reaching 10-fold basal (449 +/- 166 pmol/L, n = 6) at 60 minutes. This was not enhanced during a euglycemic clamp. Lowering the primed doses of nateglinide resulted in a diminished peak plasma insulin concentration. In contrast, glibenclamide caused only a slower increase, but eventually reaching a similar peak. By increasing the continuous infusion of nateglinide, the sustained insulin release was not altered. Glibenclamide, but not nateglinide, evoked prompt and sustained insulin release in the continuing presence of the other. These results are consistent with the concept that nateglinide produces a quick, but very short-lived, interaction with sulfonylurea (SU)-receptors on plasma membrane by free access of the drug from the cell exterior. In contrast, glibenclamide promotes a slow and longer interaction with the receptor by distribution of the drug into the cell inferior. We conclude, therefore, that not only the different kinetics of gastrointestinal (GI) absorption, but also the inherent difference in the interaction with beta cells is attributed to the different insulin release characteristics between nateglinide and glibenclamide in vivo.
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Affiliation(s)
- M Okamoto
- Department of Endocrinology and Metabolism, Institute for Adult Diseases, Asahi Life Foundation, 1-9-14 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan
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Abstract
Chlorogentisylquinone, a new inhibitor of neutral sphingomyelinase activity, was purified from the culture broth of a fungal strain FOM-8108 isolated from a marine environment by solvent extraction, silica gel chromatography and Sephadex LH-20 chromatography. Its chemical structure was elucidated by spectroscopic studies including 1H, 13C, DEPT, HMQC and HMBC NMR experiments. Chlorogentisylquinone inhibited neutral sphingomyelinase activity of rat brain membranes with an IC50 value of 1.2 microM.
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Affiliation(s)
- R Uchida
- Kitasato Institute for Life Sciences, Kitasato University and The Kitasato Institute, Tokyo, Japan
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Nebuya S, Uchida R, Minamitani H, Uratani H, Noshiro M. Facilitation of motor evoked potentials in the anterior tibial muscle by repetitive subthreshold electrical stimulation. Med Biol Eng Comput 2001; 39:441-6. [PMID: 11523733 DOI: 10.1007/bf02345366] [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: 11/28/2022]
Abstract
Subthreshold electrical stimulation with an intensity less than the threshold for evoking M-waves is applied repetitively to the common peroneal nerve via surface electrodes. The stimulation intensity is varied by adjusting the pulse width from 0 to 240 micros, while the pulse interval (40 ms) and current amplitude are kept constant. Single magnetic stimuli are applied to the motor cortex using a circular coil. Motor evoked potentials are recorded from the anterior tibial muscle in six normal subjects for various subthreshold stimulation intensities. Signal processing (filtering in the time and frequency domains) removes the artifact caused by the subthreshold electrical stimulation from the motor evoked potential. Statistically significant motor evoked potential facilitation (p < 0.05) is observed for pulse widths ranging from 72 to 240 micros in all the tested subjects. A pulse width corresponding to 90% of the electrical threshold facilitated the motor evoked potential in five of the six subjects.
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Affiliation(s)
- S Nebuya
- Department of Clinical Engineering, School of Allied Health Sciences, Kitasato University, Kanagawa, Japan.
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Abstract
In order to improve the efficiency and cost-effectiveness of the PCB analysis, the DMSO partition and SPE extraction were applied to clean up the PCB-contaminated transformer oils and PCB level was determined by means of the quadrupole GC/MS. The analysis data obtained from this method were compared statistically to that from the standard method.
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Affiliation(s)
- M Takada
- Environmental Remediation Technology Development Department, EBARA Corporation, Fujisawa-shi, Kanagawa, Japan.
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Uchida R, Yamazaki J, Ozeki S, Kitamura K. State-dependent inhibition of L-type Ca2+ channels in A7r5 cells by cilnidipine and its derivatives. Jpn J Pharmacol 2001; 85:260-70. [PMID: 11325018 DOI: 10.1254/jjp.85.260] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [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
Using a whole-cell patch-clamp technique, state-dependent inhibition of dihydropyridines (DHP)s was investigated on L-type channels in A7r5 cells. Cilnidipine, its derivatives (D-342 and D-69) and nimodipine inhibited the Ba2+ current. However, cilnidipine and D-342, but not D-69 or nimodipine, accelerated current decay. The apparent rank order for the effects on the DHP-sensitive decaying component was different from that obtained for inhibition of the peak current. The dissociation constants for cilnidipine in the resting and inactivated states were estimated to be 190 and 12 nM, respectively. Cilnidipine, but not other DHP derivatives, created a faster and voltage-independent component (r= 37 ms). The linear relationship between the tau(-1) of the current decay and the cilnidipine concentration provided a value of 471 nM for the dissociation constant in the open state, suggesting that the current decay is mediated by one-to-one lower affinity binding of cilnidipine molecules to their binding site. The present study demonstrates that structurally related DHPs act in distinct ways to inhibit the L-type channel in the resting, open and inactivated states. Cilnidipine and some related DHPs probably exert their blocking action on the open channel by binding to a receptor distinct from the known DHP-binding site.
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Affiliation(s)
- R Uchida
- Department of Oral Surgery, Fukuoka Dental College, Japan.
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Abstract
OBJECTIVE To determine the natural course of traumatic spinal cord injury (SCI) and the effect of early rehabilitation on it. DESIGN A retrospective, multicenter study. SETTING Sixteen Rosai hospitals and 1 medical school. PARTICIPANTS One hundred twenty-three SCI patients (104 men, 19 women; mean age, 48.8 +/- 17.7yr) enrolled. INTERVENTIONS Dividing the subjects into an early rehabilitation group and a delayed group; differences were ensured by international classification of SCI. MAIN OUTCOME MEASURES Using the American Spinal Injury Association (ASIA) classifications, the motor recovery rate (MRR) was defined as (ASIA motor score at discharge - ASIA motor score at admission)/(100 - ASIA motor score at admission). The regression lines for FIM instrument score and ASIA motor score were determined for 6 subgroups (early or delayed tetraplegia, central cord injury, paraplegia) by the MRR staging. The regression lines for physical or cognitive FIM score and ASIA motor score were also determined for 6 subgroups. RESULTS Three stages were obtained: acute stage: 2 weeks postinjury; recovery stage: 2 weeks to 6 months postinjury; and chronic stage: more than 6 months postinjury. Regression lines showed that rehabilitation improved physical functional independence for ASIA motor score, especially in the early rehabilitation subgroups. There was no correlation between cognitive FIM score and ASIA motor score in 6 subgroups. CONCLUSION Early SCI rehabilitation contributes to good physical activities of daily living for motor function.
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Affiliation(s)
- M Sumida
- Department of Rehabilitation Medicine, Kansai Rosai Hospital, Amagasaki City, Japan
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Omoto A, Kondo M, Uchida R, Adachi Y, Otomo T, Nishida K, Nishio A, Nakamura M. [Mamushi viper venom poisoning accompanied with congestive heart failure and ventricular fibrillation]. Nihon Naika Gakkai Zasshi 2000; 89:2350-2. [PMID: 11142822 DOI: 10.2169/naika.89.2350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- A Omoto
- Shyakaihoken Kobe Central Hospital, Kobe
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Abstract
We have designed and synthesized acridine-netropsin hybrid molecules. Spectroscopic (absorption, CD, flow dichroism and fluorescence) measurements reveal that hybrid molecules interact with DNA by both intercalation and minor-groove binding and shows enhanced preference for AT-rich sites.
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Affiliation(s)
- Y Kubota
- Department of Chemistry, Faculty of Science, Yamaguchi University, Japan
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Kominami M, Yamada N, Imakita S, Uchida R, Kuribayashi S, Kimura K, Takamiya M. [MR angiography of steno-occlusive lesions of intracranial arteries: a comparative study between turbo MRA and conventional MRA]. Nihon Igaku Hoshasen Gakkai Zasshi 1999; 59:504-9. [PMID: 10536445] [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: 02/14/2023]
Abstract
PURPOSE To compare the quality and diagnostic accuracy of images of intracranial steno-occlusive lesions obtained by conventional MRA and turbo MRA reconstructed using the zero-filled interpolation technique in the slice-select direction. MATERIALS AND METHODS Eighteen patients with suspected steno-occlusive lesions of the intracranial arteries were studied with two types of three-dimensional time-of-flight angiography and conventional digital subtraction angiography. In total, 45 steno-occlusive lesions were quantitatively measured using calipers and correlated with DSA stenosis. A phantom that simulated vessels with stenosis was also imaged using the two types of MRA under the same conditions as those employed in the clinical study. RESULTS Compared with conventional MRA, turbo MRA reduced the jaggedness of vessels and offered appearances more similar to those of DSA in the antero-posterior and lateral views. The severity of stenosis was classified into five grades based on the percentage of occlusion: not significant (0-24%), mild (25-49%), moderate (50-74%), severe (75-99%), and occlusive (100%). Neither turbo MRA nor conventional MRA showed any discrepancy from DSA above grade-1 stenosis. CONCLUSION The advantage of turbo MRA is its ability to reduce the jaggedness of vessels on conventional MRA, and to simplify the recognition of vessel contours without prolonging acquisition time. Turbo MRA and conventional MRA have equally high diagnostic accuracy for steno-occlusive lesions.
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Affiliation(s)
- M Kominami
- Department of Diagnostic Radiology, School of Medicine, Keio University Hospital
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