131 results on '"Koshiba H"'
Search Results
2. Photochemical diodes of a TiO2 film prepared by a sol-gel method
- Author
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Sato, S., Koshiba, H., Minakami, H., Kakuta, N., and Ueno, A.
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- 1994
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3. Ultra-high strength above 5000 MPa and soft magnetic properties of Co–Fe–Ta–B bulk glassy alloys
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Inoue, A., Shen, B.L., Koshiba, H., Kato, H., and Yavari, A.R.
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- 2004
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4. Radioimmunoscintigraphy of human pancreatic carcinoma xenografts in nude mice with131I-labeled monoclonal antibody
- Author
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Tsuda, Takatoshi, Koshiba, H., Usui, T., Kubota, M., Kikuchi, Kokichi, and Morita, Kazuo
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- 1990
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5. Structural Study of Fe-Based Glassy Alloys with a Large Supercooled Liquid Region
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Imafuku, M., Sato, S., Nakamura, T., Koshiba, H., Matsubara, E., and Inoue, A.
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- 2000
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6. Structural variation of Fe-Nb-B metallic glasses during crystallization process
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Imafuku, M, Sato, S, Koshiba, H, Matsubara, E, and Inoue, A
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- 2001
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7. Structural study of Amorphous Fe 70M 10B 20 (M=Zr, Nb and Cr) alloys by X-ray diffraction
- Author
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Matsubara, E, Sato, S, Imafuku, M, Nakamura, T, Koshiba, H, Inoue, A, and Waseda, Y
- Published
- 2001
- Full Text
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8. Wide supercooled liquid region and soft magnetic properties of ... amorphous alloys.
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Inoue, A., Koshiba, H., T. Zhang, and A. Makino
- Subjects
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ALLOYS , *PHYSICS experiments , *SCIENTIFIC experimentation - Abstract
Focuses on an experiment which succeeded in synthesizing the amorphous alloys with the wide supercooled liquid region before crystallization. Indepth look at the experimental procedure; Detailed information on the results.
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- 1998
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9. Marker profiles of human leukemia and lymphoma cell lines
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Minowada, J., Koshiba, H., Sagawa, K., Kubonishi, I., Lok, M. S., Tatsumi, E., Han, T., Srivastava, B. I. S., and Ohnuma, T.
- Published
- 1981
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10. Hematoma and abscess formation caused by Mycoplasma hominis following cesarean section
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Koshiba, H, Koshiba,Akemi, Yasushi ,Daimon, Toshifumi Noguchi, Kazuhiro Iwasaku, and Kitawaki,Jo
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International Journal of Women's Health - Abstract
Hisato Koshiba1,2, Akemi Koshiba1,2, Yasushi Daimon3, Toshifumi Noguchi1,2, Kazuhiro Iwasaku2, Jo Kitawaki21Department of Obstetrics and Gynecology, Kyoto Prefectural Yosanoumi Hospital, Kyoto, Japan; 2Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan; 3Department of Clinical Laboratory, Kyoto Prefectural Yosanoumi Hospital, Kyoto, JapanAbstract: Mycoplasma species cannot be identified by routine bacteriological culture methods and are resistant to common antimicrobial agents. Mycoplasma hominis usually colonizes the lower urogenital tract and causes pyelonephritis, pelvic inflammatory disease, chorioamnionitis, rupture of fetal membranes, preterm labor, postpartum fever, postabortal fever, and neonatal infection. This organism is highly prevalent in cervicovaginal cultures of sexually active women. M. hominis, M. genitalis, Ureaplasma urealyticum, and U. parvum may invade and infect placental and fetal tissues, leading to adverse pregnancy outcomes. M. hominis occasionally causes nongenitourinary infection of the blood, wounds, central nervous system, joints, or respiratory tract. We present a case of a 27-year-old woman who developed abdominal wound hematoma and abscess after cesarean section. The wound was drained, but her high fever persisted, in spite of antibiotic treatment using flomoxef sodium and imipenem•cilastatin sodium. Because the exudate exhibited M. hominis growth in an anaerobic environment, we administered the quinolone ciprofloxacin. This therapy resolved her fever, and her white blood cell count and C-reactive protein level diminished to the normal ranges. To our knowledge, there are four published articles regarding the isolation of M. hominis from postcesarean incisions. Based on the current study and the literature, infection by this pathogen may cause hematoma formation with or without abscess after cesarean section or in immunosuppressed postoperative patients. In such cases, physicians may need to suspect Mycoplasma infection and initiate appropriate antibacterial treatment as soon as possible in order to avoid persistent fever.Keywords: Mycoplasma hominis, cesarean section, hematoma, abscess
- Published
- 2011
11. Fe-based soft magnetic amorphous alloys with a wide supercooled liquid region.
- Author
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Makino, A. and Koshiba, H.
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MAGNETIC alloys , *SUPERCOOLED liquids , *GLASS transition temperature , *IRON alloys - Abstract
Presents information on a study which examined the glass transition and supercooled liquid region in the temperature range before crystallization in iron...cobalt...nickel...hafnium...niobium...tantalum...boron alloys. Experimental procedure; Results and discussion; Conclusions.
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- 1999
12. A Service Demand Forecasting Method using a Customer Classification Model.
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Koshiba, H., Takenaka, T., and Motomura, Y.
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- 2013
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13. Development Strategy of Service Engineering for Retail and Restaurant Services.
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Takenaka, T., Koshiba, H., and Motomura, Y.
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- 2013
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14. Incidence of Carboplatin-Related Hypersensitivity Reactions in Japanese Patients With Gynecologic Malignancies.
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Koshiba, H., Hosokawa, K., Kubo, A., Miyagi, Y., Oda, T., Watanabe, A., and Honjo, H.
- Abstract
Carboplatin is one of the most commonly used and well-tolerated agents for gynecologic malignancies. The rate of hypersensitivity reactions (HSRs) in the overall population of patients receiving carboplatin has been reported to increase after multiple doses of the agent. We retrospectively analyzed the incidence, clinical features, management, or outcome of carboplatin-related HSRs in 113 Japanese patients with gynecologic malignancies and the possibility of rechallenge with the drug. We intravenously administered carboplatin after paclitaxel or docetaxel. Mild HSRs are resolved by temporary interruption of carboplatin infusion, an additional antihistamine, and/or a corticosteroid. If HSRs arose, carboplatin was diluted, not exceeding 1 mg/mL, and slowly infused over 2 hours in subsequent cycles. Ten patients experienced carboplatin HSRs, with an overall incidence of 8.85%. The first HSR episode was mild in all cases. When retreated with carboplatin, 4 exhibited severe HSRs. More than 9 cycles and/or more than 5000 mg of carboplatin administration significantly increased the incidence of HSRs. In particular, carboplatin treatment beyond 15 cycles and/or 8000 mg increased the risk of severe HSRs (P < 0.0001). The incidence of HSRs in the ovarian carcinoma group was significantly greater than that in the uterine carcinoma group (P = 0.0046). Careful attention should be paid to HSRs during carboplatin treatment beyond 9 cycles and/or 5000 mg. The rate of severe HSRs greatly increases beyond 15 cycles and/or 8000 mg. Further studies are needed to identify potential risk factors that may contribute to the development of carboplatin HSRs and to decrease the risk of reactions. [ABSTRACT FROM AUTHOR]
- Published
- 2009
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15. Oestrogen receptor-alpha gene polymorphism is associated with endometriosis, adenomyosis and leiomyomata.
- Author
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Kitawaki, Jo, Obayashi, Hiroshi, Ishihara, Hiroaki, Koshiba, Hisato, Kusuki, Izumi, Kado, Noriko, Tsukamoto, Katsumi, Hasegawa, Goji, Nakamura, Naoto, Honjo, Hideo, Kitawaki, J, Obayashi, H, Ishihara, H, Koshiba, H, Kusuki, I, Kado, N, Tsukamoto, K, Hasegawa, G, Nakamura, N, and Honjo, H
- Subjects
DNA probes ,ENDOMETRIOSIS ,GENETIC polymorphisms ,NUCLEOTIDES ,PROTEINS ,UTERINE fibroids ,UTERINE tumors ,CASE-control method ,GENOTYPES - Abstract
Endometriosis, adenomyosis and leiomyomata develop in women of reproductive age and regress after menopause or ovariectomy, suggesting that they grow in an oestrogen-dependent fashion. We investigated whether polymorphism in the oestrogen receptor-alpha (ERalpha) gene is related to oestrogen-dependent benign uterine disease. A total of 203 women with regular menstrual cycles underwent laparotomy or laparoscopy and were diagnosed histologically with endometriosis, adenomyosis and/or leiomyomata. Patients with cervical carcinoma in situ, tubal occlusion or adhesion but no other gynaecological disease were considered to be disease-free. A total of 179 women undergoing annual health examination were grouped as reference population. The distribution of PVUII genotypes (PP, Pp, and pp) of the ERalpha gene was different between each pair of the four groups of endometriosis, adenomyosis/leiomyomata, disease-free, and reference population (P = 0.022-0.0005), except between the former two groups. The PP genotype was less frequent in the groups of endometriosis (P = 0.0002) and adenomyosis/leiomyomata (P = 0.002) as compared to that in the disease-free group. In the endometriosis group, there was no difference in the distribution of PVUII genotypes due to complicating diseases (adenomyosis and/or leiomyomata) or severity of the clinical stages. These results suggest that the PVUII polymorphism of the ERalpha gene is associated with the risk for endometriosis, adenomyosis, and leiomyomata. [ABSTRACT FROM AUTHOR]
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- 2001
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16. Expression of aromatase cytochrome P450 in eutopic endometrium and its application as a diagnostic test for endometriosis.
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Kitawaki, J, Kusuki, I, Koshiba, H, Tsukamoto, K, and Honjo, H
- Published
- 1999
17. Dentinogenesis imperfecta: evidence of qualitative alteration in the organic dentin matrix.
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Takagi, Y., Koshiba, H., Kimura, O., Kuboki, Y., and Sasaki, S.
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DENTINOGENESIS imperfecta , *DENTAL matrices , *OSTEOGENESIS imperfecta , *COLLAGEN , *AMINO acids - Abstract
Deciduous teeth affected by dentinogenesis imperfecta were obtained from two patients with osteogenesis imperfecta. Electron microscopy of the dentin revealed some structural alterations. The striation of the collagen fibrils was not clear, and the crystals were less dense than in normal detain. The amino acid analysis of dentin collagen was slightly different from normal dentin. There were slight increases in the amounts of hydroxylysine, serine and acidic acids. On the other hand, lysine and arginine were reduced. The elevation of hexosyllysine content and an increase of carbohydrate were also observed. These results indicate that either dentin collagen is altered, or noncollagenous matrices associated with collagen arc increased in dentinogenesis imperfecta dentin. [ABSTRACT FROM AUTHOR]
- Published
- 1980
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18. SURFACE ANTIGENIC SPECIFICITIES OF HUMAN THYMUS-DERIVED LYMPHOCYTES.
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Ishii, Y., Koshiba, H., Ueno, H., imai, K., and Kikuchi, K.
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LYMPHOCYTIC leukemia , *THYMUS , *SERUM , *T cells , *BLOOD cells , *ANTIGENS - Abstract
Surface antigenic specificities of human thymus-derived (T) lymphocytes were studied by cytotoxicity tests using a heterologous rabbit anti-human thymus serum. This serum showed higher cytotoxic titres on thymocytes by comparison with peripheral lymphocytes. After proper absorption the antiserum was non-toxic for chronic lymphatic leukaemia cells, but lysed tile majority of thymocytes. It also lysed some of peripheral lymphocytes. corresponding to those lymphocytes which bound sheep erythrocytes CE) hut not erythrocyte- antibody-complement complexes (EAC). Pretreatment of lymphocytes with the absorbed antiserum and complement. completely abrogated rosette formation with E but spared EAC-binding lymphocytes. It also eliminated their reactivity to phytohaemagglutinin and concanavalin A. These findings indicate that the absorbed serum causes selective lysis of I cells. The results obtained from quantitative absorption studies suggest that a certain loss of T-cell antigens is brought about during the differentiation of thymocytes into peripheral T cells. [ABSTRACT FROM AUTHOR]
- Published
- 1975
19. A study of surface markers in non-Hodgkin's lymphoma by using anti-T and anti-B lymphocyte sera.
- Author
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Yamanaka, Noboru, Ishii, Yoshifumi, Koshiba, Hirofumi, Mikuni, Chikara, Ogasawara, Minoru, Kikuchi, Kokichi, Yamanaka, N, Ishii, Y, Koshiba, H, Mikuni, C, Ogasawara, M, and Kikuchi, K
- Published
- 1981
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20. Effect of radiation on the expression of carcinoembryonic antigen of human gastric adenocarcinoma cells.
- Author
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Hareyama, Masato, Imai, Kohzoh, Kubo, Kihei, Takahashi, Hiroki, Koshiba, Hirofumi, Hinoda, Yuji, Shidou, Mitsuo, Oouchi, Atsushi, Yachi, Akira, Morita, Kazuo, Hareyama, M, Imai, K, Kubo, K, Takahashi, H, Koshiba, H, Hinoda, Y, Shidou, M, Oouchi, A, Yachi, A, and Morita, K
- Published
- 1991
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21. Immunochemical characterization of human TL-like (T48) and Ly 1-like (T72) glycoproteins using two-dimensional polyacrylamide gel electrophoresis.
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Ishii, Y., Fujimoto, J., Kon, S., Ogasawara, M., Koshiba, H., A. Matsuura, and Kikuchi, K.
- Subjects
LYMPHOCYTES ,CELL-mediated lympholysis ,CELL-mediated cytotoxicity ,ERYTHROCYTES ,BLOOD cells ,T cells ,SUPPRESSOR cells - Abstract
Xenoantisera, designated AT48 and A172, were developed by immunizing rabbits with human thymus cell membrane and guinea-pigs with a T-cell glycoprotein purified from leukaemic T-cell membrane. Whereas AT48, after appropriate absorption, reacted exclusively with the majority of thymocytes (mainly cortical thymocytes) among normal lymphoid populations. AT72 reacted with virtually all of the thymus and T cells but not with B cells. Thymocytes, which were strongly reactive with AT72, existed in the thymic medulla, but cortical cells were also very weakly reactive with AT72. When cultured T-cell lines, all of which were derived from patients with T-cell-type acute lymphatic leukaemias, were tested for their reactivities with AT48 and AT72 by immunofluorescence. we found that AT48 stained certain T-cell lines, whereas AT72 stained all of the T-cell lines tested so far. Immunochemical data showed that AT48 precipitated a 48K molecular weight (mol. wt) glycoprotein from
125 I-labelled thymus cell surface glycoproteins, which appeared to be very weakly associated with a 12K mol. wt component. These 48K and 12K mol. Wt. components precipitated by AT48 showed almost identical isoelectric points (pI) to those of HLA heavy chain and β2 -microglobulin respectively. AT72, on the other hand, precipitated a 72K mol. Wt. glycoprotein from thymus and T cells as well as from leukaemic T cells. A less prominent 65K mol. wt glycoprotein was also precipitated by AT72 from thymus and T cells but not from leukaemic T cells. These two components showed almost identical pI ranging approximately from 4 to 7, and this marked charge heterogeneity observed was reduced by neuraminidase treatment, suggesting that it reflects the heterogeneity in sialylation of this molecular species. We concluded from these data that AT48 and AT72 used in this work could detect human homologues of mouse TL and Ly 1 antigens respectively. [ABSTRACT FROM AUTHOR]- Published
- 1981
22. A genetic study of anodontia in X-linked hypohidrotic ectodermal dysplasia
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Nakata, M, Koshiba, H, Eto, K, and Nance, W E
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Male ,Sex Chromosomes ,X Chromosome ,Genetic Linkage ,Tooth Abnormalities ,Genetic Carrier Screening ,Genes, Recessive ,Pedigree ,stomatognathic diseases ,stomatognathic system ,Ectodermal Dysplasia ,Dentition ,Humans ,Odontometry ,Female ,Research Article ,Anodontia - Abstract
Dental examinations and tooth measurements were conducted on 16 mothers, 10 fathers, and 23 affected males in 15 families with X-linked hypohidrotic ectodermal dysplasia. Small teeth and congenital missing teeth were sufficiently consistent findings in obligate heterozygotes to suggest that carriers can usually be recognized by clinical criteria.
- Published
- 1980
23. Gender difference of sarcopenia in cognitive declined elderly.
- Author
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Kozaki, K., Tanaka, M., Koshiba, H., Toba, K., and Sudo, N.
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- 2013
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24. High-frequency permeability characteristics of Fe and Co based amorphous alloys with high B concentrations.
- Author
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Inoue, A., Itoi, T., Koshiba, H., and Makino, A.
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- 1999
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25. Nanocrystallization and magnetic properties of Fe 56Co 7Ni 7Zr 2M 8B 20(M = Nb or Ta) Glassy alloys
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Koshiba, H., Inoue, A., and Makino, A.
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- 1997
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26. A Philadelphia chromosome positive human leukaemia cell line (NALM-1) with pre-B characteristics
- Author
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Minowada, J., Koshiba, H., Janossy, G., Greaves, M.F., and Bollum, F.J.
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- 1979
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27. Endometriosis: the pathophysiology as an estrogen-dependent disease
- Author
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Kitawaki, J., Kado, N., Ishihara, H., Koshiba, H., Kitaoka, Y., and Honjo, H.
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ENDOMETRIOSIS , *MENOPAUSE - Abstract
Endometriosis, defined as the presence of endometrial glands and stroma outside of the uterine cavity, develops mostly in women of reproductive age and regresses after menopause or ovariectomy, suggesting that the growth is estrogen-dependent. Indeed, the lesions contain estrogen receptors (ER) as well as aromatase, an enzyme that catalyses the conversion of androgens to estrogens, suggesting that local estrogen production may stimulate the growth of lesions. The expression patterns of ER and progesterone receptors in endometriotic lesions are different from those in the eutopic endometrium. Moreover, estrogen metabolism, including the expression pattern of aromatase and the regulation of 17β-hydroxysteroid dehydrogenase type 2 (an enzyme responsible for the inactivation of estradiol to estrone), is altered in the eutopic endometrium of women with endometriosis, adenomyosis, and/or leiomyomas compared to that in the eutopic endometrium of women without disease. Immunostaining for P450arom in endometrial biopsy specimens diagnosed these diseases with sensitivity and specificity of 91 and 100%, respectively. This is applicable to the clinical diagnosis of endometriosis. The polymorphisms in the ER-α gene, the CYP19 gene encoding aromatase, and several other genes are associated with the risk of endometriosis. Studies of these will lead to better understandings of the etiology and pathophysiology of endometriosis. [Copyright &y& Elsevier]
- Published
- 2002
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28. Evaluation of the Anatomical Cross-Sectional Area of Psoas Major Muscle Using an Ultrasound Imaging System Combined With an Inertial Measurement Unit: Improved Reliability in the US Using IMU-Based Positioning Techniques.
- Author
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Ito K, Maeshima E, Arai N, Saito K, Koshiba H, Maruyama J, Asada K, Nakamata T, Yamaguchi K, and Hatanaka Y
- Abstract
Introduction: Recently, ultrasound (US) imaging has been used to estimate the cross-sectional area of skeletal muscle, but the reliability is uncertain. To improve the reliability of the US, we investigated skeletal muscle thickness measurement using an inertial measurement unit (IMU) to determine the direction of US beam incidence based on posture angle information. In addition, we examined whether the anatomical cross-sectional area (ACSA) of muscle can be estimated from the muscle thickness measured using the US with the IMU. Methods: In Experiment 1, two examiners measured the right psoas major at the fourth lumbar vertebra level in 10 university students using the US with and without an IMU. The intraclass correlation coefficient (ICC) was used to examine intra- and inter-rater variability. In Experiment 2, the two examiners measured the muscle thickness of the right psoas major in 31 male subjects using the US with an IMU. In addition, the ACSA of this muscle was measured using MRI. Pearson's correlation coefficient was used to examine the relationship between muscle thickness and ACSA, and a single regression analysis was performed. Results: Both intrarater reliability ICC (1, 2) and inter-rater reliability ICC (2, 2) were higher when US was used with IMU compared to without IMU (Experiment 1). A significant positive correlation ( r = 0.84, p < 0.01) was observed between muscle thickness and ACSA (Experiment 2). The regression equation was significant at R
2 = 0.71 ( p < 0.01). Conclusion: Using an IMU during US measurement of the psoas major improves intra- and interexaminer reliability and can be used to estimate the ACSA of the muscle., Competing Interests: The authors declare no conflicts of interest., (Copyright © 2024 Kazuhiro Ito et al.)- Published
- 2024
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29. Relationship between arterial stiffness and cognitive function in outpatients with dementia and mild cognitive impairment compared with community residents without dementia.
- Author
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Hirasawa A, Nagai K, Miyazawa T, Koshiba H, Tamada M, Shibata S, and Kozaki K
- Abstract
Background: It is unclear whether the dementia patients with Alzheimer's disease (AD) and vascular dementia (VaD) and mixed dementia (MIX, including AD and VaD) would have more developed arterial stiffness as compared with local residents without dementia. The aim of this study was to assess arterial stiffness and cognitive function in different types of dementia patients [AD, VaD, MIX and mild cognitive impairment (MCI)] and community residents without dementia., Methods: This was a single-center, cross-sectional observational study. We studied a cohort of 600 elderly outpatients with a complaint of memory loss, who were divided into four groups (AD, VaD, MIX and MCI). In addition, they were compared with 55 age-matched local residents without dementia (Controls). We assessed arterial stiffness by brachial-ankle pulse wave velocity (baPWV) and the global cognitive function by the Mini-Mental State Examination (MMSE)., Results: The baPWV was higher in AD, VaD and MIX than in MCI and in Controls ( P < 0.05). The baPWV was higher in MCI than in Controls ( P = 0.021), while MMSE were compatible between them ( P = 0.119). The higher baPWV predicted the presence of AD, VaD, MIX and MCI with the odds ratio of 6.46, 8.74, 6.16 and 6.19, respectively. In contrast, there were no difference in baPWV among three different types of dementia ( P = 0.191). The linear relationship between baPWV and MMSE was observed in the elderly with MMSE ≥ 23 (R = 0.452, P = 0.033), while it was not in dementia patients (MMSE < 23)., Conclusions: The findings suggest that MCI and dementia patients have stiffer arteries as compared with age-matched local residents, although global cognitive function may be comparable between MCI and the local residents., (© 2022 JGC All rights reserved; www.jgc301.com.)
- Published
- 2022
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30. Pregnancy Loss Signal from Prostaglandin Eye Drop Use in Pregnancy: A Disproportionality Analysis Using Japanese and US Spontaneous Reporting Databases.
- Author
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Sakai T, Mori C, Koshiba H, Yuminaga R, Tanabe K, and Ohtsu F
- Abstract
Background: There is limited research regarding the use of glaucoma medicines during pregnancy. Prostaglandins contract uterine smooth muscle; however, it is not clear whether prostaglandin eye drops are associated with pregnancy loss in pregnant women., Objectives: We conducted a pharmacovigilance study using spontaneous report databases from Japan and the USA to evaluate the association between pregnancy loss and the use of prostaglandin eye drops during pregnancy., Methods: The Japanese Adverse Drug Event Report database and the Food and Drug Administration Adverse Event Reporting System were used for analysis. Disproportionality analyses and a review of individual case safety reports were conducted., Results: As for prostaglandin eye drops in pregnancy-related reports, there were eight reports involving latanoprost in the Japanese Adverse Drug Event Report database and no reports of pregnant women using other prostaglandin eye drops. In the Food and Drug Administration Adverse Event Reporting System, there were 25 reports involving latanoprost, 23 involving bimatoprost, 13 involving travoprost, and three involving tafluprost. The drug safety signal was detected during latanoprost usage and pregnancy loss. In the Japanese Adverse Drug Event Report database, there were five reports of pregnancy loss related to latanoprost, with a reporting odds ratio of 12.84 (95% confidence interval 3.06-53.86), and in the Food and Drug Administration Adverse Event Reporting System, pregnancy loss was reported in 12 cases of latanoprost usage with a reporting odds ratio of 4.35 (95% confidence interval 1.98-9.54). Uterine contractions were observed as concomitant adverse events in one case., Conclusions: Although a disproportionality analysis cannot determine causality, we need to keep an eye on the signal detected in this study. This signal should be validated using a causal design study., (© 2021. The Author(s).)
- Published
- 2022
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31. Guidelines Are Urgently Needed for the Use of Preprints as a Source of Information.
- Author
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Ide K, Koshiba H, Hawke P, and Fujita M
- Subjects
- Biomedical Research, Humans, Publishing trends, Quality Control, Scholarly Communication, Guidelines as Topic, Periodicals as Topic, Preprints as Topic
- Published
- 2021
- Full Text
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32. Acute effects of moderate-intensity cycling exercise on endothelial function in young healthy men: An investigation using the reactive hyperemia index.
- Author
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Koshiba H and Maeshima E
- Subjects
- Endothelial Cells, Endothelium, Vascular, Exercise, Humans, Male, Manometry, Hyperemia
- Abstract
Background: Endothelial cells play an important role in the prevention of cardiovascular disease., Objective: In this study, we examined the effects of transient aerobic exercise on peripheral endothelial function., Methods: Twenty-seven healthy male college students were selected as subjects and randomly divided into two groups: 13 in the control group and 14 in the exercise group. The subjects in the exercise group had a 15-minute supine rest, followed by 30 minutes of cycling exercise at moderate intensity, while measuring the reactive hyperemia index (RHI), an indicator of endothelial function, before and after exercise. The subjects in the control group had a 40-minute rest, during which RHI was measured with the same timing as in the exercise group., Results: Two-factor analysis of variance revealed a statistically significant interaction effect. In the exercise group, RHI increased significantly after exercise. However, no significant change was observed in the control group. When RHI before exercise was compared between the two groups, no significant difference was found. However, RHI after exercise was significantly higher in the exercise group., Conclusions: The results of this study suggest that 30 minutes of moderate-intensity exercise may have a favorable impact on peripheral endothelial function.
- Published
- 2021
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33. Effects of exercise intervention on arterial stiffness in middle-aged and older females: evaluation by measuring brachial-ankle pulse wave velocity and cardio-ankle vascular index.
- Author
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Koshiba H and Maeshima E
- Abstract
[Purpose] Brachial-ankle pulse wave velocity (baPWV) and cardio-ankle vascular index (CAVI) are simple, accurate, and reproducible indices of arterial stiffness. However, only a few studies have evaluated the influence of exercise-training baPWV and CAVI on arterial stiffness. Thus, this study aimed to examine the influence of aerobic-training baPWV and CAVI on arterial stiffness. [Participants and Methods] The participants were 20 middle-aged females (age, 60.1 ± 1.6 years) who were sedentary non-smokers. The participants underwent an exercise intervention, including a 50-min session of moderate-intensity exercises two or three times a week for 12 weeks. Blood pressure (BP), baPWV, and CAVI were measured before and after exercise. Blood nitrite/nitrate (NOx) was also measured as an index of vascular endothelial function. [Results] BaPWV significantly decreased after exercise, whereas CAVI and blood NOx did not change significantly after exercise. A significant correlation was observed between the decrease in baPWV and systolic BP after exercise. In addition, the participants with higher systolic BP before exercise showed a greater decrease in baPWV after exercise. [Conclusion] These results suggest that BP has a significant role in decreasing arterial stiffness after exercise. Further studies are required to elucidate the similarities and differences between baPWV and CAVI to use them more effectively as assessment parameters for arterial stiffness.
- Published
- 2019
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34. Relationship between cerebral blood flow estimated by transcranial Doppler ultrasound and single-photon emission computed tomography in elderly people with dementia.
- Author
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Miyazawa T, Shibata S, Nagai K, Hirasawa A, Kobayashi Y, Koshiba H, and Kozaki K
- Subjects
- Aged, Aged, 80 and over, Dementia physiopathology, Female, Humans, Male, Middle Aged, Middle Cerebral Artery physiopathology, Cerebrovascular Circulation, Dementia diagnostic imaging, Middle Cerebral Artery diagnostic imaging, Tomography, Emission-Computed, Single-Photon, Ultrasonography, Doppler, Transcranial
- Abstract
Transcranial Doppler (TCD) ultrasonography is a noninvasive technique allowing continuous recording of cerebral blood flow (CBF) velocity. However, it is unclear whether the CBF estimated by TCD would be reliable for the comparison between individuals. The present study aimed to clarify the relationship between middle cerebral artery blood flow (MCA BF) measured by TCD and regional and total CBF measured by single-photon emission computed tomography (SPECT-CBF) with a quantification software program, a three-dimensional stereotaxic region of interest template. We recruited 91 elderly subjects with and without dementia. MCA blood flow velocity (MCA V) and middle cerebral artery cross-sectional area (A
M ) were measured by TCD and magnetic resonance angiography, respectively. MCA BF was calculated by the product of MCA V and AM . Diastolic or mean MCA V and MCA BF were significantly correlated with SPECT-CBF in several segments. Interestingly, the correlation coefficient in the temporal segment of SPECT-CBF was higher than those of the other segments. Moreover, correlations between MCA BF and SPECT-CBF were stronger as compared with those between MCA V and SPECT-CBF. These findings suggest that both mean MCA V and MCA BF with TCD ultrasonography would be useful for CBF comparison between individuals especially in the temporal region, although estimated blood flow with arterial area seems to be better than using simple flow velocity. NEW & NOTEWORTHY Correlations between middle cerebral artery blood flow (MCA BF) calculated by the product of MCA blood flow velocity (MCA V) and middle cerebral artery cross-sectional area and regional and total cerebral blood flow (CBF) measured by single-photon emission computed tomography (SPECT-CBF) were stronger as compared with those between MCA V and SPECT-CBF. These findings suggest that both mean MCA V and MCA BF would be useful for CBF comparison between individuals although estimated blood flow with arterial area seems to be better than using simple flow velocity.- Published
- 2018
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35. Effects of golf training on cognition in older adults: a randomised controlled trial.
- Author
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Shimada H, Lee S, Akishita M, Kozaki K, Iijima K, Nagai K, Ishii S, Tanaka M, Koshiba H, Tanaka T, and Toba K
- Subjects
- Aged, Cognitive Dysfunction prevention & control, Female, Humans, Japan, Male, Single-Blind Method, Cognition, Golf psychology
- Abstract
Background: Although research indicates that a physically active lifestyle has the potential to prevent cognitive decline and dementia, the optimal type of physical activity/exercise remains unclear. The present study aimed to determine the cognitive benefits of a golf-training programme in community-dwelling older adults., Methods: We conducted a randomised controlled trial between August 2016 and June 2017 at a general golf course. Participants included 106 Japanese adults aged 65 and older. Participants were randomly assigned to either a 24-week (90-120 min sessions/week) golf-training group or a health education control group. Postintervention changes in Mini-mental State Examination (MMSE) and National Centre for Geriatrics and Gerontology-Functional Assessment Tool scores were regarded as primary outcome measures. Secondary outcome measures included changes in physical performance and Geriatric Depression Scale (GDS) scores., Results: A total of 100 participants (golf training, n=53; control, n=47) completed the assessments after the 24-week intervention period. The adherence to the golf programme was 96.2% (51/53 participants). Analysis using linear mixed models revealed that the golf training group exhibited significantly greater improvements in immediate logical memory (p=0.033), delayed logical memory (p=0.009) and composite logical memory (p=0.013) scores than the control group. However, no significant changes in MMSE, word memory, Trail Making Test or Symbol Digital Substitution Test scores were observed. In addition, no significant changes in grip strength, walking speed or GDS were observed., Conclusions: Golf-based exercise interventions may improve logical memory in older adults, but no significant changes in other cognitive tests. Further follow-up investigations are required to determine whether the observed effects are associated with delayed onset of mild cognitive impairment or Alzheimer's disease in older adults., Trial Registration Number: UMIN-CTR UMIN000024797; Pre-results., Competing Interests: Competing interests: HS reports receiving institutional grants from the National Center for Geriatrics and Gerontology during the study period (28–29). Kanto Golf Association and Japan Ladies Professional Golf Association supported the intervention by providing golf instructors and support staff. There are no other disclosures to report., (© Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2018. All rights reserved. No commercial use is permitted unless otherwise expressly granted.)
- Published
- 2018
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36. Relationship between the severity of cerebral white matter hyperintensities and sympathetic nervous activity in older adults.
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Obara T, Nagai K, Shibata S, Hirasawa A, Koshiba H, Hasegawa H, Ebihara T, and Kozaki K
- Subjects
- Aged, Cross-Sectional Studies, Humans, Magnetic Resonance Imaging, Severity of Illness Index, White Matter diagnostic imaging, Sympathetic Nervous System physiopathology, White Matter pathology
- Abstract
Aim: White matter hyperintensities (WMH), visualized on brain magnetic resonance imaging, represent an abnormality related to the development of geriatric syndromes. Recently, it has been found that low sympathetic nervous activity might be associated with physical and cognitive dysfunction in older adults. Therefore, we investigated the relationship between the severity of cerebral WMH and sympathetic nervous activity, measured by the heart rate variability., Methods: We carried out a cross-sectional study of 39 older patients. Holter recording was carried out for 30 min. From the RR intervals on the electrocardiogram, the standard deviation of the normal-to-normal intervals, the standard deviation of all normal-to-normal intervals in all the five segments of the entire recording, low frequency (LF), high frequency (HF) and LF/HF were calculated. In regard to the WMH, periventricular hyperintensities and deep white matter hyperintensities (DWMH) were rated according to the Fazekas classification. The WMH were also rated semiquantitatively according to the methods developed by Junque (periventricular hyperintensities) and de Groot (DWMH)., Results: The LF/HF showed significant negative correlations with the total and regional periventricular hyperintensities, as well as DWMH. Multiple regression analysis showed that the negative associations remained significant between the LF/HF and DWMH (total, temporal, occipital). Furthermore, fall risk index significantly correlated with the LF/HF, total and the occipital DWMH., Conclusions: The severity of the DWMH was associated with the LF/HF and the fall risk, one of the important geriatric syndromes, suggesting that WMH, sympathetic nervous dysfunction and geriatric syndrome are interrelated to each other. Geriatr Gerontol Int 2018; 18: 569-575., (© 2017 Japan Geriatrics Society.)
- Published
- 2018
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37. The relationship between arterial stiffness and the lifestyle habits of female athletes after retiring from competitive sports: a prospective study.
- Author
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Koshiba H, Maeshima E, and Okumura Y
- Subjects
- Actigraphy instrumentation, Ankle Brachial Index, Cardiovascular Diseases diagnosis, Cardiovascular Diseases etiology, Cardiovascular Diseases physiopathology, Diet, Healthy, Exercise, Female, Fitness Trackers, Hockey, Humans, Nutrition Assessment, Nutritional Status, Prospective Studies, Pulse Wave Analysis, Sleep, Surveys and Questionnaires, Time Factors, Young Adult, Athletes, Cardiovascular Diseases prevention & control, Competitive Behavior, Habits, Healthy Lifestyle, Retirement, Vascular Stiffness
- Abstract
This study investigated the relationship between changes in arterial stiffness and the lifestyle habits of endurance athletes after retiring from competition. The subjects were 10 female university endurance athletes. We used formPWV/ABI
® as an index for arterial stiffness and measured brachial-ankle pulse-wave velocity (baPWV) directly before subjects retired (0Y) and at 2 years after retirement (2Y). Furthermore, to investigate the relationship between arterial stiffness and lifestyle habits 2 years later, Lifecorder® PLUS was used to measure physical activity levels, hours of sleep were surveyed using a questionnaire, and a food intake survey was conducted using Excel Eiyoukun Food Frequency Questionnaire Based on Food Group, FFQg Ver. 3.5. We found that baPWV increased significantly from 0Y to 2Y (P<0·05). Furthermore, negative correlations were observed between 2Y baPWV and step count as the physical activity index (r = -0·653, P<0·05) and moderate physical activity (r = -0·663, P<0·05). With regard to lifestyle habits that affected the amount of increase in baPWV from 0Y to 2Y (ΔbaPWV), negative correlations were noted between the step count (r = -0·690, P<0·05) and total physical activity (r = -0·657, P<0·05). However, no significant correlations were observed between 2Y baPWV and ΔbaPWV with food intake or hours of sleep. The results of this study suggested that physical activity was a lifestyle habit that inhibited an increase in arterial stiffness after retirement from competition and that having a high step count or engaging in physical activity for long periods of time in particular was useful in this regard., (© 2015 Scandinavian Society of Clinical Physiology and Nuclear Medicine. Published by John Wiley & Sons Ltd.)- Published
- 2017
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38. Relationship of Serum Carnitine Level with Falls and Gait Disturbance in the Elderly.
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Nagai K, Koshiba H, Shibata S, Hirasawa A, Ebihara T, and Kozaki K
- Subjects
- Aged, Aged, 80 and over, Cross-Sectional Studies, Female, Frailty epidemiology, Geriatric Assessment methods, Humans, Male, Muscle Strength, Risk Factors, Accidental Falls statistics & numerical data, Carnitine blood, Frail Elderly statistics & numerical data, Frailty blood, Gait
- Abstract
Background: Gait disturbance and falls are serious events that can impair activities of daily living (ADL) in the elderly. On the other hand, carnitine plays essential roles in energy production, and carnitine deficiency leads to low activity levels., Objectives: We examined whether a lower serum carnitine concentration was correlated with falls and gait disturbances in the elderly., Design, Setting, and Participants: We performed a cross-sectional study. One hundred and ninety-eight elderly patients (male, 83; female, 115; 81 ± 6 years old) were enrolled in this study., Measurements: Physical performance (hand grip strength, leg strength, walking speed, one-leg standing time, and tandem gait steps) and frailty status (The Edmonton Frail Scale: EFS) were evaluated. The serum total, free, and acylated carnitine levels were measured using an enzyme cycling method. We then investigated the associations between the serum carnitine level, history of falls, and the results of these physical examinations., Results: Of the 198 subjects, 56 (28%) had a history of falls within the past one year. The patients with a history of falls had lower serum total carnitine and free carnitine levels than those without a history of falls. Regarding the physical performance results, the patients with a history of falls had higher EFS scores, a weaker hand grip strength, a slower walking speed, a shorter one-leg standing time, and a smaller number of tandem gait steps than those without a history of falls. A logistic regression analysis showed that the low serum total carnitine concentration was identified as an independent factor associated with a history of falls, a slow walking speed after adjustments for age, sex and modified EFS., Conclusions: A low serum carnitine level is associated with a history of falls and gait disturbances in elderly people., Competing Interests: No potential conflicts of interest were disclosed.
- Published
- 2017
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39. Intra- and inter-rater reliability of isometric shoulder extensor and internal rotator strength measurements performed using a hand-held dynamometer.
- Author
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Awatani T, Morikita I, Shinohara J, Mori S, Nariai M, Tatsumi Y, Nagata A, and Koshiba H
- Abstract
[Purpose] The purpose of the present study was to establish the intra- and inter-rater reliability of measurement of extensor strength in the maximum shoulder abducted position and internal rotator strength in the 90° abducted and the 90° external rotated position using a hand-held dynamometer. [Subjects and Methods] Twelve healthy volunteers (12 male; mean ± SD: age 19.0 ± 1.1 years) participated in the study. The examiners were two students who had nonclinical experience with a hand-held dynamometer measurement. The examiners and participants were blinded to measurement results by the recorder. Participants in the prone position were instructed to hold the contraction against the ground reaction force, and peak isometric force was recorded using the hand-held dynamometer on the floor. Reliability was determined using intraclass correlation coefficients. [Results] The intra- and inter-rater reliability data were found to be "almost perfect". [Conclusion] This study investigated intra- and inter-rater reliability and reveald high reliability. Thus, the measurement method used in the present study can evaluate muscle strength by a simple measurement technique.
- Published
- 2016
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40. Unsteady gait is a determinant for progression in frailty among the elderly.
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Nagai K, Koshiba H, Tanaka M, Matsui T, and Kozaki K
- Subjects
- Aged, Aged, 80 and over, Female, Frail Elderly, Humans, Male, Gait Disorders, Neurologic diagnosis, Gait Disorders, Neurologic etiology, Geriatric Assessment
- Published
- 2016
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41. Same-session and between-day intra-rater reliability of hand-held dynamometer measurements of isometric shoulder extensor strength.
- Author
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Awatani T, Mori S, Shinohara J, Koshiba H, Nariai M, Tatsumi Y, Nagata A, and Morikita I
- Abstract
[Purpose] The purpose of present study was to establish the same-session and between-day intra-rater reliability of measurements of extensor strength in the maximum abducted position (MABP) using hand-held dynamometer (HHD). [Subjects] Thirteen healthy volunteers (10 male, 3 female; mean ± SD: age 19.8 ± 0.8 y) participated in the study. [Methods] Participants in the prone position with maximum abduction of shoulder were instructed to hold the contraction against the ground reaction force, and peak isometric force was recorded using the HHD on the floor. Participants performed maximum isometric contractions lasting 3 s, with 3 trials in one session. Between-day measurements were performed in 2 sessions separated by a 1-week interval. Intra-rater reliability was determined using intraclass correlation coefficients (ICC). Systematic errors were assessed using Bland-Altman analysis for between-day data. [Results] ICC values for same-session data and between-day data were found to be "almost perfect". Systematic errors not existed and only random error existed. [Conclusion] The measurement method used in this study can easily control for experimental conditions and allow precise measurement because the lack of stabilization and the impact of tester strength are removed. Thus, extensor strength in MABP measurement is beneficial for muscle strength assessment.
- Published
- 2016
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42. Influence of detraining on temporal changes in arterial stiffness in endurance athletes: a prospective study.
- Author
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Koshiba H and Maeshima E
- Abstract
[Purpose] We examined the effects of detraining on temporal changes in arterial stiffness in endurance athletes. [Subjects] Eighteen female university athletes requiring high endurance exercise capabilities were classified into 2 groups: 10 retired players (detraining group) and 8 active players (training group). [Methods] Brachial-ankle pulse wave velocity, an index of arterial stiffness, was measured a total of 6 times: immediately before retirement of the detraining group and at 1, 2, 3, 6, and 12 months after retirement. [Results] Brachial-ankle pulse wave velocity was measured in the training group at the same 6 points to allow comparison with the detraining group. The brachial-ankle pulse wave velocity in the detraining group increased significantly at 3 and 12 months as compared with that at 0 months and showed a significant increase at 12 months compared with that at 1 month. Moreover, the brachial-ankle pulse wave velocity in the detraining group was significantly higher at 3, 6, and 12 months than in the training group. [Conclusion] These results revealed that detraining may result in increased arterial stiffness from 3 months onward in endurance athletes.
- Published
- 2015
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43. Correlation between the serum eicosapentanoic acid-to-arachidonic acid ratio and the severity of cerebral white matter hyperintensities in older adults with memory disorder.
- Author
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Nagai K, Koshiba H, Shibata S, Matsui T, and Kozaki K
- Subjects
- Aged, Aged, 80 and over, Aging physiology, Analysis of Variance, Biomarkers blood, Cohort Studies, Diffusion Magnetic Resonance Imaging methods, Disease Progression, Female, Follow-Up Studies, Geriatric Assessment methods, Humans, Japan, Leukoaraiosis physiopathology, Linear Models, Male, Memory Disorders physiopathology, Multivariate Analysis, Prospective Studies, Risk Assessment, Severity of Illness Index, Arachidonic Acid blood, Eicosapentaenoic Acid blood, Leukoaraiosis pathology, Memory Disorders blood, White Matter pathology
- Abstract
Aim: The relationships of n-3 polyunsaturated fatty acids, such as docosahexaenoic acid and eicosapentaenoic acid (EPA), to stroke and cardiovascular events have been studied extensively. The present study was undertaken to analyze the relationships of the severity of cerebral white matter hyperintensities (WMH) to the blood polyunsaturated fatty acids level and the ratio of serum EPA level to the serum arachidonic acid (AA) level (EPA/AA ratio) among older adults., Methods: A total of 150 patients underwent diagnostic magnetic resonance imaging and blood sampling under the fasting state. In regard to WMH, the periventricular hyperintensities and deep white matter hyperintensities were rated according to the Fazekas classification. The serum docosahexaenoic acid, EPA, AA, dihomo-γ-linolenic acid and EPA/AA ratio were compared in relation to the grade of severity of WMH. Furthermore, multiple regression analysis was carried out with age, sex and atherosclerosis risk factors (hypertension, diabetes mellitus, hyperlipidemia, smoking status) as the covariables, serum polyunsaturated fatty acids level as an independent variable and Fazekas grade as the dependent variable., Results: A rise of the periventricular hyperintensities grade was associated with a significant reduction of the mean EPA level (P < 0.05) and EPA/AA ratio (P < 0.05). The multiple regression analysis identified a significant negative correlation between the periventricular hyperintensities grade and the serum EPA/AA ratio (β = -0.215, P < 0.05)., Conclusion: These results suggest that the serum EPA/AA ratio have an important role in the formation and progression of WMH., (© 2015 Japan Geriatrics Society.)
- Published
- 2015
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44. Monitoring of Water Spectral Pattern Reveals Differences in Probiotics Growth When Used for Rapid Bacteria Selection.
- Author
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Slavchev A, Kovacs Z, Koshiba H, Nagai A, Bázár G, Krastanov A, Kubota Y, and Tsenkova R
- Subjects
- Bile Acids and Salts pharmacology, Hydrogen-Ion Concentration, Lactobacillus classification, Lactobacillus drug effects, Lactobacillus metabolism, Microbial Sensitivity Tests, Principal Component Analysis, Spectroscopy, Near-Infrared, Lactobacillus growth & development, Probiotics pharmacology, Water chemistry
- Abstract
Development of efficient screening method coupled with cell functionality evaluation is highly needed in contemporary microbiology. The presented novel concept and fast non-destructive method brings in to play the water spectral pattern of the solution as a molecular fingerprint of the cell culture system. To elucidate the concept, NIR spectroscopy with Aquaphotomics were applied to monitor the growth of sixteen Lactobacillus bulgaricus one Lactobacillus pentosus and one Lactobacillus gasseri bacteria strains. Their growth rate, maximal optical density, low pH and bile tolerances were measured and further used as a reference data for analysis of the simultaneously acquired spectral data. The acquired spectral data in the region of 1100-1850nm was subjected to various multivariate data analyses - PCA, OPLS-DA, PLSR. The results showed high accuracy of bacteria strains classification according to their probiotic strength. Most informative spectral fingerprints covered the first overtone of water, emphasizing the relation of water molecular system to cell functionality.
- Published
- 2015
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45. Residual salivary secretion ability may be a useful marker for differential diagnosis in autoimmune diseases.
- Author
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Maeshima E, Koshiba H, Furukawa K, Maeshima S, and Sakamoto W
- Subjects
- Adult, Aged, Biomarkers metabolism, Diagnosis, Differential, Female, Humans, Male, Middle Aged, Scleroderma, Systemic metabolism, Sjogren's Syndrome metabolism, Saliva metabolism, Salivary Glands metabolism, Scleroderma, Systemic diagnosis, Sjogren's Syndrome diagnosis
- Abstract
Background: We have elucidated decreased resting salivary flow in approximately 60% of patients with autoimmune diseases not complicated by Sjögren syndrome (SjS). In this study, salivary stimulation tests using capsaicin were performed to examine residual salivary secretion ability in patients with autoimmune diseases., Materials and Methods: Fifty-eight patients were divided into three groups: patients with primary or secondary SjS (SjS group), patients with systemic sclerosis not complicated by SjS (SSc group), and patients with other autoimmune diseases (non-SjS/non-SSc group). Simple filter paper and filter paper containing capsaicin were used to evaluate salivary flow rates., Results: Resting salivary flow rates were significantly lower in the SjS and SSc groups than in the non-SjS/non-SSc group but did not differ significantly between the SjS and SSc groups. Capsaicin-stimulated salivary flow rates were significantly lower in the SjS and SSc groups than in the non-SjS/non-SSc group, but not significantly different between the SjS and SSc groups. In the non-SjS/non-SSc group, salivary flow rates increased after capsaicin stimulation to the threshold level for determination of salivary gland dysfunction, whereas no improvement was observed in the SjS and SSc groups., Conclusion: Residual salivary secretion ability may be a useful marker for differential diagnosis in autoimmune diseases.
- Published
- 2014
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46. Hyposalivation in autoimmune diseases.
- Author
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Maeshima E, Furukawa K, Maeshima S, Koshiba H, and Sakamoto W
- Subjects
- Autoimmune Diseases metabolism, Comorbidity, Humans, Prevalence, Saliva metabolism, Salivary Glands metabolism, Salivary Glands physiopathology, Sjogren's Syndrome epidemiology, Sjogren's Syndrome metabolism, Sjogren's Syndrome physiopathology, Visual Analog Scale, Xerostomia metabolism, Autoimmune Diseases epidemiology, Autoimmune Diseases physiopathology, Xerostomia epidemiology, Xerostomia physiopathology
- Abstract
We have investigated the prevalence of dry mouth among patients with autoimmune diseases other than Sjögren's syndrome. One hundred and forty-four patients, excluding patients with primary Sjögren's syndrome, were enrolled in this study. The volume of saliva secreted was measured with the screening technique for estimation of salivary flow, which uses a filter paper for diagnosing dry mouth. Disturbed salivary secretion was observed in 84 (58.3 %) of the 144 patients. In the case of patients free of Sjögren's syndrome, the prevalence of disturbed salivary secretion differed significantly among the disease groups (P < 0.05), with the prevalence being over 50 % in all disease groups other than the rheumatoid arthritis group and the highest in the systemic sclerosis group. There was significant positive correlation between the number of colored spots and oral visual analog scale score (r = 0.45, P < 0.0001). Autoimmune diseases can be accompanied by salivary gland dysfunction, regardless of the presence/absence of complication by Sjögren's syndrome. In the present study, the screening technique for estimation of salivary flow, which uses a filter paper for diagnosing dry mouth, was shown to be a useful means of detecting salivary gland dysfunction.
- Published
- 2013
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47. Weight loss and homeostatic imbalance of leptin and ghrelin levels in lean older adults.
- Author
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Tanaka M, Nagai K, Koshiba H, Sudo N, Obara T, Matsui T, and Kozaki K
- Subjects
- Activities of Daily Living, Aged, Aged, 80 and over, Body Mass Index, Enzyme-Linked Immunosorbent Assay, Female, Humans, Male, Anorexia blood, Ghrelin blood, Leptin blood, Weight Loss
- Published
- 2013
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48. Uterine perforation with omentum incarceration after dilatation and evacuation/curettage: magnetic resonance imaging findings.
- Author
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Koshiba A, Koshiba H, Noguchi T, Iwasaku K, and Kitawaki J
- Subjects
- Abdominal Pain diagnosis, Abdominal Pain diagnostic imaging, Abdominal Pain surgery, Adult, Debridement, Female, Humans, Laparotomy, Ultrasonography, Uterine Hemorrhage diagnosis, Uterine Hemorrhage diagnostic imaging, Uterine Hemorrhage surgery, Uterine Perforation diagnostic imaging, Uterine Perforation surgery, Dilatation and Curettage adverse effects, Magnetic Resonance Imaging, Omentum surgery, Uterine Perforation diagnosis, Uterine Perforation etiology
- Abstract
Introduction: Cervical dilatation and/or uterine evacuation and curettage (D/E&C) is the most commonly performed and safest gynecological procedure. Although procedure-related uterine perforation is rare, this condition may require surgical intervention. Ultrasound examination and computed tomography are useful for diagnosing such perforations with incarceration of an intra-abdominal organ. However, the use of magnetic resonance imaging (MRI) for detecting postabortal uterine damage has seldom been discussed in the literature., Case Report: A 31-year-old woman was referred to our department for lower abdominal pain and a small amount of vaginal bleeding 28 days after D/E&C for a missed abortion. Transvaginal ultrasound examination showed the presence of a hyperechogenic structure in the anterior wall of the uterine body, which was verified to be fatty tissue by MRI, particularly on the fat-suppressed T1-weighted images. An emergency laparotomy showed a uterine perforation with omentum incarceration. After dissecting the omental loop, the uterine perforation site was incised, and the involved omental tissue was debrided appropriately., Discussion: To our knowledge, this is the first report wherein MRI was used for the detection of incarcerated omental fat within the uterus. Delayed presentation of uterine perforation may be observed 1 month or more after D/E&C, although such a finding is extremely rare. Therefore, postabortal follow-up bimanual vaginal examination using transvaginal ultrasonography is recommended. The current study indicates the usefulness of MRI when myometrial perforation with or without incarceration of an extrauterine organ is suspected.
- Published
- 2012
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49. Neoadjuvant weekly carboplatin and paclitaxel followed by radical hysterectomy for locally advanced cervical cancer: long-term results.
- Author
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Mori T, Hosokawa K, Sawada M, Kuroboshi H, Tatsumi H, Koshiba H, Okubo T, and Kitawaki J
- Subjects
- Adenocarcinoma pathology, Adult, Aged, Carboplatin administration & dosage, Carcinoma, Adenosquamous pathology, Carcinoma, Squamous Cell pathology, Combined Modality Therapy, Female, Follow-Up Studies, Humans, Middle Aged, Neoplasm Staging, Paclitaxel administration & dosage, Survival Rate, Time Factors, Treatment Outcome, Uterine Cervical Neoplasms pathology, Adenocarcinoma therapy, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Carcinoma, Adenosquamous therapy, Carcinoma, Squamous Cell therapy, Hysterectomy, Neoadjuvant Therapy, Uterine Cervical Neoplasms therapy
- Abstract
Introduction: To determine the long-term effect of neoadjuvant chemotherapy with paclitaxel and carboplatin on a weekly schedule followed by radical surgery for patients with locally advanced cervical cancer., Materials and Methods: Thirty patients with stage IB2 to IIIB uterine cervical cancer were treated with paclitaxel (60 mg/m) and carboplatin (area under the curve, 2-an area under the time-concentration curve of 2 mg x min/mL based on creatinine clearance) every week for 6 cycles. A radical hysterectomy was performed 6 days after the final administration of neoadjuvant chemotherapy. The patients were followed up, and 5-year progression-free survival (PFS) and overall survival (OS) were evaluated., Results: Of 30 patients, 28 were followed up. The median follow-up period was 55.6 months (range, 26-83 months). An objective response (complete response + partial response) to the treatment was observed in 26 patients (87%; 95% confidence interval, 70%-95%). Two had complete response, 4 had stable disease, and the remaining patients had partial response; progressive disease was not seen in this study. A radical hysterectomy was performed in 28 patients without delay. Thirteen patients with high-risk factors received radiotherapy after surgery. The 5-year PFS and OS rates were 78.6% and 81.8%, respectively. The 5-year PFS and OS for patients with stage IB2 to IIB cervical cancer were 79.2% and 83.1%, respectively, which were comparable with those in the concurrent chemoradiation therapy study previously reported. There was no significant correlation in survival between preoperative staging and cell type, whereas larger initial tumor size and lymph node metastasis tended to be negatively correlated with survival., Conclusions: Neoadjuvant chemotherapy with paclitaxel and carboplatin on a weekly schedule followed by radical surgery for patients with locally advanced cervical cancer is a promising mode of therapy that may improve the prognosis. It would be worthwhile to conduct larger-scale trials for comparison with the results of the chemoradiation therapy study.
- Published
- 2010
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50. Intravenous paclitaxel is specifically retained in human gynecologic carcinoma tissues in vivo.
- Author
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Koshiba H, Hosokawa K, Mori T, Kubo A, Watanabe A, and Honjo H
- Subjects
- Adult, Aged, Antineoplastic Combined Chemotherapy Protocols therapeutic use, Carboplatin administration & dosage, Carboplatin pharmacokinetics, Female, Genital Neoplasms, Female drug therapy, Genital Neoplasms, Female surgery, Humans, Infusions, Intravenous, Lymph Nodes metabolism, Middle Aged, Ovary metabolism, Paclitaxel administration & dosage, Uterus metabolism, Antineoplastic Combined Chemotherapy Protocols pharmacokinetics, Genital Neoplasms, Female metabolism, Paclitaxel pharmacokinetics
- Abstract
Paclitaxel and carboplatin are commonly used and well-tolerated agents for gynecologic malignancies. The persistence of platinum in human tissues for 14 days and the long-term retention of platinum in tissues for up to 17 months have been reported. Paclitaxel remains in human uterine cervical cancer tissues for 6 days. These findings prompted us to determine the retention of paclitaxel and carboplatin in human uterine cervical carcinoma, endometrial carcinoma, ovarian carcinoma, and pelvic lymph nodes to establish baseline parameters and guide the development of more effective treatment interventions. Thirty patients with uterine or ovarian carcinomas were treated with intravenous weekly paclitaxel-carboplatin chemotherapy before surgery. The concentrations of these agents in carcinoma tissue, normal cervical, myometrial and ovarian tissues, and pelvic lymph nodes were measured 5 days after the final administration. Paclitaxel was specifically retained in cervical, endometrial, and ovarian carcinoma tissues but was not detected in lymph nodes. In contrast to paclitaxel, carboplatin was readily detectable with similar levels in all tumor-associated and normal host tissues. In addition, a low paclitaxel concentration in cervical carcinoma tissue was significantly associated with short progression-free survival and overall survival. Further studies are needed to clarify the tissue distribution of anticancer drugs in humans and promote optimal treatment strategies enhancing paclitaxel lymphatic targeting.
- Published
- 2009
- Full Text
- View/download PDF
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