1
|
Sato S, Okada E, Nakamura M. 500 The prognosis prediction of cutaneous melanoma patients using quantitative real-time PCR from sentinel lymph node. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
2
|
Elmi OI, Cristini-Robbe O, Chen MY, Wei B, Bernard R, Yarekha D, Okada E, Ouendi S, Portier X, Gourbilleau F, Xu T, Stiévenard D. Local Schottky contacts of embedded Ag nanoparticles in Al 2O 3/SiN x :H stacks on Si: a design to enhance field effect passivation of Si junctions. Nanotechnology 2018; 29:285403. [PMID: 29697055 DOI: 10.1088/1361-6528/aac032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This paper describes an original design leading to the field effect passivation of Si n+-p junctions. Ordered Ag nanoparticle (Ag-NP) arrays with optimal size and coverage fabricated by means of nanosphere lithography and thermal evaporation, were embedded in ultrathin-Al2O3/SiN x :H stacks on the top of implanted Si n+-p junctions, to achieve effective surface passivation. One way to characterize surface passivation is to use photocurrent, sensitive to recombination centers. We evidenced an improvement of photocurrent by a factor of 5 with the presence of Ag NPs. Finite-difference time-domain (FDTD) simulations combining with semi-quantitative calculations demonstrated that such gain was mainly due to the enhanced field effect passivation through the depleted region associated with the Ag-NPs/Si Schottky contacts.
Collapse
Affiliation(s)
- O Ibrahim Elmi
- Université de Djibouti, Faculté des Sciences BP 1904, Djibouti
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
3
|
Nakamura M, Sawada Y, Mashima E, Kubo R, Yamaguchi T, Haruyama S, Yoshioka M, Okada E. 422 Galectin-7 suppresses the erythema and cytokine productions in Nc/Nga mice, an atopic dermatitis model. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
4
|
Oda T, Sawada Y, Okada E, Yamaguchi T, Ohmori S, Haruyama S, Yoshioka M, Nakamura M. Stevens-Johnson Syndrome After Influenza Vaccine Injection. J Investig Allergol Clin Immunol 2017; 27:274-275. [PMID: 28731419 DOI: 10.18176/jiaci.0169] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- T Oda
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - Y Sawada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - E Okada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - T Yamaguchi
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - S Ohmori
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - S Haruyama
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - M Yoshioka
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| | - M Nakamura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu City, Fukuoka, Japan
| |
Collapse
|
5
|
Okada E, Nisenbaum M, Martínez Arca J, Murialdo SE. Chemotaxis detection towards chlorophenols using video processing analysis. J Microbiol Methods 2017; 142:15-19. [PMID: 28844722 DOI: 10.1016/j.mimet.2017.08.015] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/23/2017] [Accepted: 08/23/2017] [Indexed: 12/27/2022]
Abstract
To our knowledge, this communication is the first report of chemotaxis towards chlorophenols by any bacteria. We used a recently published method based on the agarose in-plug assay combined with video processing analysis and we also present a new index of bacterial mean speed for these assays.
Collapse
Affiliation(s)
- E Okada
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - M Nisenbaum
- Grupo de Ingeniería Bioquímica (GIB), Departamento de Ingeniería Química y en Alimentos, Facultad de Ingeniería, Universidad Nacional de Mar del Plata, Juan B Justo 4302, Mar del Plata y CONICET, Mar del Plata, Buenos Aires, Argentina.
| | - J Martínez Arca
- Instituto de Investigaciones Científicas y Tecnológicas en Electrónica, Laboratorio de Bioingeniería, Departamento de Ingeniería Electrónica, Facultad de Ingeniería, Universidad Nacional de Mar del Plata y CONICET, Juan B Justo 4302, Mar del Plata, Buenos Aires, Argentina
| | - S E Murialdo
- Grupo de Ingeniería Bioquímica (GIB), Departamento de Ingeniería Química y en Alimentos, Facultad de Ingeniería, Universidad Nacional de Mar del Plata, Juan B Justo 4302, Mar del Plata y La Comisión de Investigaciones Científicas de la Provincia de Buenos Aires (CIC), Buenos Aires, Argentina
| |
Collapse
|
6
|
Zhao W, Ukawa S, Okada E, Wakai K, Kawamura T, Ando M, Tamakoshi A. THE ASSOCIATION OF DIETARY PATTERN WITH OVERALL MORTALITY, AND OTHER LIFESTYLES IN JAPANESE ELDERLY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- W. Zhao
- Department of Public Health, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan,
| | - S. Ukawa
- Department of Public Health, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan,
| | - E. Okada
- Department of Public Health, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan,
| | - K. Wakai
- Department of Preventive Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan,
| | - T. Kawamura
- Kyoto University Health Service, Kyoto, Japan,
| | - M. Ando
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Aichi, Japan
| | - A. Tamakoshi
- Department of Public Health, Hokkaido University Graduate School of Medicine, Sapporo, Hokkaido, Japan,
| |
Collapse
|
7
|
Mashima E, Sawada Y, Yamaguchi T, Ohmori S, Haruyama S, Yoshioka M, Okada E, Nakamura M. Eosinophilic Cellulitis Possibly Due to Mosquito Bite With High IL-5 Production. J Investig Allergol Clin Immunol 2017; 27:149-150. [PMID: 28398209 DOI: 10.18176/jiaci.0142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- E Mashima
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Sawada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - T Yamaguchi
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - S Ohmori
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - S Haruyama
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Yoshioka
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - E Okada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Nakamura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| |
Collapse
|
8
|
Oda T, Sawada Y, Yamaguchi T, Ohmori S, Omoto D, Haruyama S, Yoshioka M, Okada E, Nakamura M. Psoriatic Erythroderma Caused by Terbinafine: A Possible Pathogenetic Role for IL-23. J Investig Allergol Clin Immunol 2017; 27:63-64. [PMID: 28211348 DOI: 10.18176/jiaci.0116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- T Oda
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - Y Sawada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - T Yamaguchi
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - S Ohmori
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - D Omoto
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - S Haruyama
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - M Yoshioka
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - E Okada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| | - M Nakamura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyūshū, Japan
| |
Collapse
|
9
|
Oda T, Sawada Y, Yamaguchi T, Ohmori S, Haruyama S, Yoshioka M, Okada E, Nakamura M. Drug Eruption Caused by Rosuvastatin. J Investig Allergol Clin Immunol 2017; 27:140-141. [PMID: 28398205 DOI: 10.18176/jiaci.0136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- T Oda
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - Y Sawada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - T Yamaguchi
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - S Ohmori
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - S Haruyama
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Yoshioka
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - E Okada
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - M Nakamura
- Department of Dermatology, University of Occupational and Environmental Health, Kitakyushu, Japan
| |
Collapse
|
10
|
Ojima T, Okada E, Saito M, Nakamura H, Nakamura M, Kondo N, Kondo K, Group TJ. Housing Status and Disparities of Healthy Life Expectancy: JAGES Cohort Project. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
11
|
Hikichi H, Kondo K, Suzuki K, Okada E. Does Participation in Community Health Salons Help Shrink Health Disparity? Results of a 5-year-long Intervention Study by JAGES Project in Taketoyo Town, Japan. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
12
|
Matsumoto M, Okada E, Ichihara D, Chiba K, Toyama Y, Fujiwara H, Momoshima S, Nishiwaki Y, Takahata T. Modic changes in the cervical spine. ACTA ACUST UNITED AC 2012; 94:678-83. [DOI: 10.1302/0301-620x.94b5.28519] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
We conducted a prospective follow-up MRI study of originally asymptomatic healthy subjects to clarify the development of Modic changes in the cervical spine over a ten-year period and to identify related factors. Previously, 497 asymptomatic healthy volunteers with no history of cervical trauma or surgery underwent MRI. Of these, 223 underwent a second MRI at a mean follow-up of 11.6 years (10 to 12.7). These 223 subjects comprised 133 men and 100 women with a mean age at second MRI of 50.5 years (23 to 83). Modic changes were classified as not present and types 1 to 3. Changes in Modic types over time and relationships between Modic changes and progression of degeneration of the disc or clinical symptoms were evaluated. A total of 31 subjects (13.9%) showed Modic changes at follow-up: type 1 in nine, type 2 in 18, type 3 in two, and types 1 and 2 in two. Modic changes at follow-up were significantly associated with numbness or pain in the arm, but not with neck pain or shoulder stiffness. Age (≥ 40 years), gender (male), and pre-existing disc degeneration were significantly associated with newly developed Modic changes. In the cervical spine over a ten-year period, type 2 Modic changes developed most frequently. Newly developed Modic changes were significantly associated with age, gender, and pre-existing disc degeneration.
Collapse
Affiliation(s)
- M. Matsumoto
- Keio University, Department
of Orthopaedic Surgery, Shinanomachi 35, Shinjuku-ku, Tokyo 160-8582, Japan
| | - E. Okada
- Keio University, Department
of Orthopaedic Surgery, Shinanomachi 35, Shinjuku-ku, Tokyo 160-8582, Japan
| | - D. Ichihara
- Keio University, Department
of Orthopaedic Surgery, Shinanomachi 35, Shinjuku-ku, Tokyo 160-8582, Japan
| | - K. Chiba
- Keio University, Department
of Orthopaedic Surgery, Shinanomachi 35, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Y. Toyama
- Keio University, Department
of Orthopaedic Surgery, Shinanomachi 35, Shinjuku-ku, Tokyo 160-8582, Japan
| | - H. Fujiwara
- Keio University, Department
of Diagnostic Radiology, Shinanomachi 35, Shinjuku-ku, Tokyo 160-8582, Japan
| | - S. Momoshima
- Keio University, Department
of Diagnostic Radiology, Shinanomachi 35, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Y. Nishiwaki
- Toho University, Department
of Environmental and Occupational Health, Ohmori
Nishi 6-11-1, Ota-ku, Tokyo
143-8541, Japan
| | - T. Takahata
- Isehara Kyodo Hospital, Sakuradai
2-17-1, Isehara City, Kanagawa
259-1132, Japan
| |
Collapse
|
13
|
Abdo W, Kakizoe Y, Ryono M, Dover SR, Fukushi H, Okuda H, Kano R, Shibahara T, Okada E, Sakai H, Yanai T. Pulmonary zygomycosis with Cunninghamella bertholletiae in a killer whale (Orcinus orca). J Comp Pathol 2011; 147:94-9. [PMID: 22000035 DOI: 10.1016/j.jcpa.2011.08.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2011] [Revised: 08/08/2011] [Accepted: 08/29/2011] [Indexed: 11/29/2022]
Abstract
An adult female killer whale (Orcinus orca) was transported to the Port of Nagoya public aquarium in June 2010. While the animal was being maintained in the aquarium there was a gradual decrease in body weight. On October 1st, 2010 the whale exhibited signs of gastrointestinal disease and died on January 14th, 2011. At necropsy examination the gastric compartments were filled with a large number of variably-sized rocks (total weight 81.4 kg) and there was marked ulceration in the third compartment. There were multifocal tubercle-like nodules within the lungs and on sectioning there were numerous abscesses and pulmonary cavities. Microscopically, there was severe suppurative pneumonia associated with fungal hyphae that were infrequently septate and often branched. Numerous bacterial colonies were also present. The hyphae demonstrated immunohistochemical cross-reactivity with Rhizomucor spp. and Cunninghamella bertholletiae was cultured. Bacteriological culture revealed the presence of Proteus mirabilis, Pseudomonas aeruginosa and Pseudomonas oryzihabitans. This case represents the first documentation of zygomycosis associated with C. bertholletiae in a marine mammal.
Collapse
Affiliation(s)
- W Abdo
- Department of Veterinary Pathology, Faculty of Applied Biological Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
14
|
Yasuda M, Abe M, Suto M, Okada E, Nagai Y, Tamura A, Ishikawa O, Takahashi K. Circumscribed palmar hypokeratosis on both hands: distinct keratin expression in multiple depressed lesions. Br J Dermatol 2010; 164:211-3. [DOI: 10.1111/j.1365-2133.2010.10042.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
15
|
Okada E, Yoshimoto S, Ikeda N, Kanda H, Tamura K, Shiba T, Takamatsu N, Ito M. Xenopus W-linked DM-W induces Foxl2 and Cyp19 expression during ovary formation. Sex Dev 2009; 3:38-42. [PMID: 19339816 DOI: 10.1159/000200080] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2008] [Accepted: 01/19/2009] [Indexed: 11/19/2022] Open
Abstract
The molecular mechanisms of vertebrate ZZ/ZW-type sex-determining systems remain unclear. We recently indicated that a W-linked gene, DM-W is a likely ovary-determining gene in Xenopus laevis. We first examined whether Cyp19 for estrogen-synthesizing enzyme P450 aromatase and Foxl2 showed female-specific expression in developing gonads. Both genes showed much higher expression in ZW than in ZZ gonads during and after sex determination. Importantly, transgenic ZZ gonads expressing exogenous DM-W at the sex-determining stage showed a ZW-type pattern of Cyp19 and Foxl2 expression. These results suggest that DM-W up-regulates Cyp19 and Foxl2 expression to guide primary ovary development in X. laevis.
Collapse
Affiliation(s)
- E Okada
- Department of Biosciences, School of Science, Kitasato University, Sagamihara, Kanagawa, Japan
| | | | | | | | | | | | | | | |
Collapse
|
16
|
Ayude MA, Okada E, González JF, Haure PM, Murialdo SE. Bacillus subtilis as a bioindicator for estimating pentachlorophenol toxicity and concentration. J Ind Microbiol Biotechnol 2009; 36:765-8. [DOI: 10.1007/s10295-009-0550-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2008] [Accepted: 02/12/2009] [Indexed: 10/21/2022]
|
17
|
Abstract
Double-balloon endoscopy (DBE) is a new technique that allows diagnosis and treatment throughout the entire small intestine. We have recently developed a method that allows a single operator to perform DBE, by employing "grip and pinch" and "hold (or 'keep') and slide" techniques. This one-person method obviates the need for two operators who must cooperate closely.
Collapse
Affiliation(s)
- A Araki
- Department of Gastroenterology and Hepatology, Graduate School of Medicine, Tokyo Medical and Dental University, Tokyo, Japan
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Hayashi A, Maruyama Y, Saze M, Okada E. Ulnar recurrent adipofascial flap for reconstruction of massive defects around the elbow and forearm. ACTA ACUST UNITED AC 2004; 57:632-7. [PMID: 15380696 DOI: 10.1016/j.bjps.2004.06.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2003] [Accepted: 06/14/2004] [Indexed: 11/21/2022]
Abstract
An ulnar recurrent adipofascial flap was raised and turned over to reconstruct massive defects around the elbow and forearm after wide resection of malignant tumours. Compared to the fasciocutaneous flap, the ulnar recurrent adipofascial flap has the following advantages: (1) a larger flap can be harvested without the problem of primary closure of the donor site, (2) the contour and scar of the donor site is reasonably acceptable since no tension is presented, (3) the flap can be turned over to cover a wider area, and (4) debulking of the flap can be performed during the operation if needed. The rotation arc of the ulnar recurrent adipofascial flap reaches a wide region, including the distal one-half of the upper arm, the elbow, and the proximal two-thirds of the forearm. Sensory deficit in the forearm was avoided in our patients because meticulous separation and preservation of the medial cutaneous nerve of the forearm was achieved without jeopardising the blood supply to the flap. The ulnar recurrent adipofascial flap is an easy and reliable option for one-stage reconstruction of massive defects around the elbow.
Collapse
Affiliation(s)
- A Hayashi
- Department of Plastic and Reconstructive Surgery, Toho University Sakura Hospital, 564-1 Shimoshizu, Sakura City, Chiba, 285-8741, Japan.
| | | | | | | |
Collapse
|
19
|
Abstract
The authors demonstrate successful cases of stepladder dorsal metacarpal V-Y advancement and rotation-advancement flaps for reconstructing defects on the dorsum of the finger and hand. One side of the flap is designed in a multilobed shape, and each lobed flap is designed on the dorsum of adjacent fingers. These flaps are supplied by dorsal metacarpal vessels. Consequently, this method has the elements of the stepped incision technique, in combination with the V-Y and rotation-advancement principle. All flaps survived completely. This technique may be a useful option for reconstruction of defects of the dorsum of the finger and hand.
Collapse
Affiliation(s)
- E Okada
- Department of Plastic and Reconstructive Surgery, Toho University School of Medicine, 6-11-1 Ohmorinishi, Ohta-ku, Tokyo 143, Japan
| | | | | |
Collapse
|
20
|
Yoshida M, Okada E, Mizuki N, Kokaze A, Sekine Y, Onari K, Uchida Y, Harada N, Takashima Y. Age-specific prevalence of open-angle glaucoma and its relationship to refraction among more than 60,000 asymptomatic Japanese subjects. J Clin Epidemiol 2001; 54:1151-8. [PMID: 11675167 DOI: 10.1016/s0895-4356(01)00388-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
To clarify the prevalence of open-angle glaucoma (OAG) and its relationship to refraction among a Japanese population with a broad range of ages including children and adolescents, an 1-year epidemiological survey was conducted. The subjects of this study were 64,394 asymptomatic individuals who had attended the glasses and contact lens center in Yokohama, Japan from February 15, 1999 to February 14, 2000 and had been subjected to several optical examinations. The results of this study showed that the overall prevalence of OAG was 1.19% (1.14% for men, and 0.98% for women). Prevalence for children aged 6 to 14 of both sexes was approximately 0.5%. There were significant positive associations between the strength (diopter) of myopic refraction and OAG prevalence among all the examined subjects.
Collapse
Affiliation(s)
- M Yoshida
- Department of Public Health, Kyorin University School of Medicine, 6-20-2 Shinkawa, Mitaka-shi, 181-8611, Tokyo, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
21
|
|
22
|
Okuda K, Ihata A, Watabe S, Okada E, Yamakawa T, Hamajima K, Yang J, Ishii N, Nakazawa M, Okuda K, Ohnari K, Nakajima K, Xin KQ. Protective immunity against influenza A virus induced by immunization with DNA plasmid containing influenza M gene. Vaccine 2001; 19:3681-91. [PMID: 11395202 DOI: 10.1016/s0264-410x(01)00078-0] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
DNA vaccination is characterized by its preferential induction of the cytotoxic T cell lymphocyte (CTL) response and is expected to be a useful means of protection against viral infection. We examined the protective effect of an expression plasmid (pME18S-M) containing M1 and M2 genes of influenza A/PR/8/34. We detected the CTL activity by introducing these plasmids into BALB/c mice by either the intramuscular or the intranasal route. The influenza-specific antibody response was also induced, although its neutralizing effect against influenza virus was not observed. From 70 to 80% protection was observed in the mice immunized with the pME18S-M plasmid followed by lethal infection with influenza viruses of the A/WSN/33 and A/PR/8/34 strains, whereas all mice without the plasmid vaccination failed to survive. This protective activity was significantly weakened when the CD8(+) cells of these immunized mice were eliminated by several injections of anti-CD8 antibody. The protective activity was also weakened when anti-CD4 antibody was injected in the early phase of DNA vaccination. These data suggest that the pME18S-M plasmid is useful as a DNA vaccine for overcoming highly mutational influenza viruses.
Collapse
Affiliation(s)
- K Okuda
- Department of Bacteriology, Yokohama City University School of Medicine, 3-9 Fukuura, Kanazawa-ku, Yokohama 236-0004, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Abstract
Recently, hepatitis virus-associated chronic hepatitis or cirrhosis has been suggested to be involved in the pathogenesis of cholangiocarcinoma (CC). A 52-year-old man was diagnosed as CC with a background of hepatitis B virus (HBV)-dependent cirrhosis. A minute hepatic tumor was found during the follow-up, and was diagnosed as CC on percutaneous biopsy. The patient died of hepatic failure and an autopsy revealed the tumor to be a well to moderately differentiated adenocarcinoma. An immunohistological analysis of HBV X gene-encoded protein (HBX) was neither detected in the cancerous nor in the noncancerous tissue. No oncogenic role of the virus was verified in this case.
Collapse
Affiliation(s)
- K Takegoshi
- Takegoshi Internal Medicine Clinic, Takaoka, Toyama
| | | | | | | | | | | |
Collapse
|
24
|
Murai Y, Dobashi Y, Okada E, Ishizawa S, Shiota M, Mori S, Takano Y. Study on the role of G1 cyclins in Epstein-Barr virus-associated human lymphomas maintained in severe combined immune deficiency (SCID) mice. Int J Cancer 2001; 92:232-9. [PMID: 11291051 DOI: 10.1002/1097-0215(200102)9999:9999<::aid-ijc1171>3.0.co;2-r] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Five Epstein-Barr virus (EBV)-positive human lymphoma cell lines maintained in severe combined immune deficiency (SCID) mice were used to investigate the role of G1 cyclins in EBV-induced lymphomagenesis. All the primary tumors had been negative for EBV but became positive after establishment in SCID mice, with monoclonal immunoglobulin gene rearrangement and EBV monoclonality. To compare the expression status of G1 cyclins, these EBV-associated lymphoma lines (6 EBV[-] human SCID mouse lymphoma lines, 13 human B cell lymphomas and 8 samples of human tonsil tissue) were examined by reverse transcription-polymerase chain reaction-Southern blotting, Western blotting and immunohistochemistry. mRNA expression of cyclin D1 (CCND1), cyclin D2 (CCND2), cyclin E (CCNE), cyclin-dependent kinase 2 (CDK2) and 4 (CDK4) was found in all 3 types of lymphomas. Western blotting demonstrated identical results. Immunohistochemistry revealed CCND1 to be negative in all lymphomas. CCND2 was positive and restricted to the nuclei in all EBV(+) SCID mouse lymphoma lines, whereas it was limited to the cytoplasm in half of the EBV(-) counterparts. CCNE was positive in the nuclei in all EBV(+) but negative in all EBV(-) SCID mouse lymphoma lines. Immunoprecipitation of EBV(+) and (-) SCID mouse lymphomas for CCND1, CCND2 and CCNE vs. p21, PCNA and CDK2 or CDK4 demonstrated that, in EBV(+) SCID lines, CCND2/CDK4 complexes were present without binding to p21, suggesting independence from p21 regulation. In EBV(-) SCID mouse lymphomas, half of the cases showed complex formation of CCND2/CDK4 without binding of p21. In contrast, CCND1/CDK4 and CCNE/CDK2 were under regulation of p21 in both EBV(+) and (-) lymphomas. These results suggest that differential expression of CCNDs, CCNE and CDKs, as well as variation in their subcellular localization and association with CDK-inhibitor protein, could explain differences in cell proliferation between EBV(+) and EBV(-) lymphomas.
Collapse
Affiliation(s)
- Y Murai
- First Department of Pathology, Toyama Medical and Pharmaceutical University, Sugitani 2630, Toyama 930-0194, Japan.
| | | | | | | | | | | | | |
Collapse
|
25
|
Abstract
Recent innovations in laser scanning technology provide a potentially useful technique for accurate three-dimensional documentation of the face. In this study, linear and area measurements of the facial contour and facial units have been recorded in a variety of chosen facial postures using surface laser scanning combined with three-dimensional lighting techniques on seven healthy volunteers and three patients with facial nerve paralysis. Three-dimensional surface measurement of the face was taken using a laser light scanner. Computer graphics lighting techniques were used to produce facial images constituted by highlights and shadows, which emboss facial contour and units. Then quantitative measurement of changes in facial angles and areas were made to analyze morphological changes of the face accompanying facial expression. Changes of angles and widths of the cheek and nasal units were found to be associated with dimensional changes imposed by the action of the underlying mimetic muscles. This system has potential value for both dynamic monitoring and evaluation of facial contour, units, and movement.
Collapse
Affiliation(s)
- E Okada
- Department of Plastic and Reconstructive Surgery, Toho University School of Medicine, 6-11-1 Omorinishi Ota-ku, Tokyo 143-8541, Japan.
| |
Collapse
|
26
|
Kosaka S, Takahashi S, Masamura K, Kanehara H, Sakai J, Tohda G, Okada E, Oida K, Iwasaki T, Hattori H, Kodama T, Yamamoto T, Miyamori I. Evidence of macrophage foam cell formation by very low-density lipoprotein receptor: interferon-gamma inhibition of very low-density lipoprotein receptor expression and foam cell formation in macrophages. Circulation 2001; 103:1142-7. [PMID: 11222479 DOI: 10.1161/01.cir.103.8.1142] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Expression of the VLDL receptor, primarily in macrophages, has been confirmed in human and rabbit atherosclerotic lesions. The high binding affinity of the VLDL receptor for remnant particles implicates the VLDL receptor pathway in the foam cell formation mechanism in macrophages. This study investigates the effect of interferon (IFN)-gamma on VLDL receptor expression in phorbol-12-myristate-13-acetate (PMA)-treated THP-1, HL-60 macrophages, and human monocyte-derived macrophages. METHODS AND RESULTS THP-1 cells were induced to differentiate into macrophages by PMA treatment. IFN-gamma was added to the medium, and expression of the VLDL receptor was determined. (125)I-beta-VLDL degradation study and oil red O staining were examined. In THP-1 macrophages, VLDL receptor protein expression decreased at 2 days after PMA treatment but increased at 3 days and increased up to 5 days. Scavenger receptor proteins, which were not originally present, appeared at 3 days after PMA treatment. IFN-gamma inhibited VLDL receptor expression in a dose-and time-dependent manner in macrophages. However, no inhibitory effect was observed in monocytes. Moreover, IFN-gamma receptor mRNA increased during differentiation to macrophages. (125)I-beta-VLDL degradation study and oil red O staining showed that IFN-gamma significantly inhibited foam cell formation after the uptake of beta-VLDL. LDL receptor-related protein (LRP) and LDL receptor mRNAs were not expressed in macrophages. In PMA-treated HL-60 macrophages and human monocyte-derived macrophages, IFN-gamma also inhibited VLDL receptor expression and foam cell formation by beta-VLDL. CONCLUSIONS VLDL receptor expression is upregulated during monocyte-macrophage differentiation. IFN-gamma inhibits VLDL receptor expression and foam cell formation only in macrophages. Remnant particles induce macrophage foam cell formation through the VLDL receptor pathway.
Collapse
Affiliation(s)
- S Kosaka
- Third Department of Internal Medicine, Fukui Medical University, Fukui, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Okada E, Murai Y, Matsui K, Isizawa S, Cheng C, Masuda M, Takano Y. Survivin expression in tumor cell nuclei is predictive of a favorable prognosis in gastric cancer patients. Cancer Lett 2001; 163:109-16. [PMID: 11163114 DOI: 10.1016/s0304-3835(00)00677-7] [Citation(s) in RCA: 138] [Impact Index Per Article: 6.0] [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: 12/16/2022]
Abstract
One hundred and thirty three gastric cancer cases were investigated immunohistochemically to clarify the biological role of survivin in gastric cancer cells using a commercially available anti-survivin antibody (SURV11A). Five gastric cancer cell lines were employed to assess localization of survivin by reverse-transcription-polymerase chain reaction (RT-PCR) Southern blotting, Western blotting and immunofluorescence, signals being found in both nucleus and cytoplasm. Survivin nuclear staining of gastric cancer cells was evident in 109 of 133 cases (82.0%) and associated with a favorable prognosis, being an independent prognosticator on multivariate analysis. Survivin nuclear positivity also correlated with younger age and lower incidence of vessel cancer invasion. In contrast, survivin cytoplasmic positivity was noted in 117 cases (88.0%) and did not correlate with any factor of progression or prognosis. The results indicate that survivin is present in the majority of gastric cancer cells but a nuclear localization may play an important physiological role in hindering tumor progression.
Collapse
Affiliation(s)
- E Okada
- First Department of Pathology, School of Medicine, Toyama Medical & Pharmaceutical University, 2630 Sugitani, Toyama 930-0194, Japan.
| | | | | | | | | | | | | |
Collapse
|
28
|
Okamoto S, Kurimoto M, Hirashima Y, Hayashi N, Kuwayama N, Endo S, Okada E, Ishizawa S. [Systemic non-Hodgkin lymphoma initially presented with visual disturbance due to intrasellar lymphoma--a case report]. No Shinkei Geka 2001; 29:59-63. [PMID: 11218768] [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: 02/19/2023]
Abstract
A case with systemic non-Hodgkin lymphoma involving the sella turcica and kidney is reported. A 69-year-old man presented with a progressive two month history of visual disturbance and headache. Neurological examination revealed bilateral visual disturbance and right optic atrophy. MRI showed a contrast-enhancing mass in the sella turcica. The tumor extended to the right optic nerve. Without extensive studies for systemic disease, the patient immediately underwent transsphenoidal surgery. The slightly firm, fibrous and vascular-rich tumor was subtotally removed. The histopathological examination revealed a malignant lymphoma, diffuse-large-cell type with B-cell phenotype. The postoperative course was uneventful and the patient's symptoms subsided gradually. The patient received radiation therapy and the tumor disappeared. Postoperative CT examinations of the abdomen and pelvis revealed a large mass at the upper portion of the left kidney. Ga-scan also suggested the mass to be consistent with the abdominal CT. However, the patient suddenly died of acute heart failure with unknown cause just before starting chemotherapy for systemic lymphoma. Patients presenting primary central nervous system lymphoma (PCNSL) may have systemic non-Hodgkin lymphoma. To exclude systemic non-Hodgkin lymphoma, systemic investigation is essential for the initial management of patients presenting PCNSL.
Collapse
Affiliation(s)
- S Okamoto
- Department of Neurosurgery, Toyama Medical and Pharmaceutical University, Japan
| | | | | | | | | | | | | | | |
Collapse
|
29
|
Abstract
We report a 53-year-old man with a 2-year history of a violaceous indurated plaque on the shoulder. Although angiosarcoma was clinically suspected, histological examination revealed numerous lobules ('tufts') with cleft-like vascular lumina throughout the dermis and subcutaneous tissue. Tumour cells had no nuclear atypia and were positive for CD34, but almost negative for factor VIII-related antigen. These findings were compatible with a diagnosis of tufted angioma, or angioblastoma. We reviewed 41 cases reported in Japan and found that, although most patients presented during the first year of life (23/41), the condition does occur throughout childhood and adult life. Both sexes are affected equally and, contrary to some reports, it is unlikely that oestrogens have a pathogenic role.
Collapse
Affiliation(s)
- E Okada
- Department of Dermatology, Gunma University School of Medicine, Maebashi, Japan
| | | | | | | |
Collapse
|
30
|
Abstract
Thallium-201 (201Tl) chloride scintigraphy is the imaging method use for the detection of various tumors including glioblastoma, but only limited information on 201Tl uptake in gliosarcoma is available. We investigated a patient with gliosarcoma by means of 201Tl single-photon emission computed tomography (SPECT) and MRI. SPECT imaging revealed high 201Tl uptake in the tumor, which was closely correlated with contrast-enhancement on MRI. These results suggest that SPECT with 201Tl may be useful for detecting gliosarcoma and provide physiological information on this tumor.
Collapse
Affiliation(s)
- N Watanabe
- Department of Radiology, Toyama Medical and Pharmaceutical University, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Abstract
BACKGROUND Primary squamous cell carcinoma (SCC) is an uncommon tumor of the prostate gland. A 65-year old man complained of obstructive symptoms. METHODS/RESULTS Transrectal palpation and diagnostic imaging indicated an ordinary adenocarcinoma, although serum prostate-specific antigen (PSA) was normal. Biopsy specimens revealed SCC with the serum SCC antigen elevated. The patient was treated with pelvic irradiation and systemic administration of cis-platinum and peplomycin, which resulted in shrinkage of the cancer. CONCLUSION No evidence of recurrence has been seen for 18 months.
Collapse
Affiliation(s)
- E Okada
- Department of Urology, Hamanomachi Hospital, Fukuoka, Japan.
| | | |
Collapse
|
32
|
Asahi T, Ohta M, Okuda K, Hattori K, Okada E. [Hypersensitivity vasculitis caused by the herbicide containing the isopropylamine salt of glyphosate]. Nihon Naika Gakkai Zasshi 2000; 89:1424-6. [PMID: 10934772 DOI: 10.2169/naika.89.1424] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- T Asahi
- Department of Internal Medicine, Takaoka City Hospital
| | | | | | | | | |
Collapse
|
33
|
Abstract
The supratrochlear and supraorbital vessel-based island flap was used to avoid excessive scarring during reconstruction of the unilateral forehead defects after surgical excision of a malignant tumor. This method had a number of advantages: operation time was short, it was a one-stage procedure, the technique was relatively simple, a good match of the texture and color could be achieved, and scars were inconspicuous.
Collapse
Affiliation(s)
- E Okada
- Department of Plastic and Reconstructive Surgery at the Toho University School of Medicine, Tokyo, Japan.
| | | |
Collapse
|
34
|
Okada E, Oida K, Asazuma K, Eguchi K, Kosaka S, Tohda G, Takahashi S, Kimura H, Yoshida H, Miyamori I. Association between genetic polymorphisms (ACE genotype, PAI-1 genotype and MTHFR genotype) and coronary artery stenosis. Atherosclerosis 2000. [DOI: 10.1016/s0021-9150(00)80698-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
35
|
Sugimoto H, Okada E, Hashimoto N, Suzuki S, Yoshida H, Totani Y, Ameshima S, Ishizaki T, Miyamori I. [The clinical study on KL-6 and SP-D in sera of patients with various pulmonary diseases]. Rinsho Byori 2000; 48:554-60. [PMID: 10897675] [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: 02/17/2023]
Abstract
It has been reported that serum levels of KL-6 and surfactant protein D(SP-D) can be useful indicators for interstitial pneumonia(IP). In the present study, we evaluated the clinical significance of KL-6 and SP-D by measuring the serum levels of patients with various pulmonary diseases by enzyme-linked immunosorbent assay. Serum levels of KL-6 in patients with idiopathic interstitial pneumonia(IIP), collagen disease with interstitial pneumonia(CDIP), lung cancer(LC) and LC with idiopathic interstitial pneumonia were significantly higher than of those in healthy controls. Moreover, serum levels of KL-6 were significantly higher in patients with active IP than in those with inactive IP. Serum levels of SP-D in patients with IIP and CDIP were significantly higher than of those in healthy controls. When a cut-off level of KL-6 or SP-D in sera was defined as a value of healthy controls representing the means + 2SD, the serum KL-6 positive diagnostic rate for IP(79.2%) was higher than that of SP-D(66.7%). The SP-D positive diagnostic rate for lung diseases other than IP(11.6%) was lower than that of KL-6(34.9%). The serum concentration of KL-6 in patients with the pulmonary diseases significantly correlated with that of SP-D. These findings suggest that KL-6 may be superior in the sensitivity of IP and can be used to evaluate the disease activity of IP. In addition, SP-D may be more specific for IP than KL-6.
Collapse
Affiliation(s)
- H Sugimoto
- Department of Clinical Laboratory, Fukui Medical University
| | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Shinoda K, Hayasaka S, Nagaki Y, Kadoi C, Kurimoto M, Okada E. Melanocytoma of the left optic nerve head and right retrobulbar optic neuropathy compressed by a tuberculum sellae meningioma. Ophthalmologica 2000; 214:161-3. [PMID: 10720925 DOI: 10.1159/000027489] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A 40-year-old woman had a highly pigmented, slightly elevated tumor on the left optic disc. She had no visual disturbance in the left eye. The tumor was stationary for 5 years. At age 45 years, she complained of decreased visual acuity in the right eye. Magnetic resonance imaging showed a right-shifted homogeneous lesion at the tuberculum sellae. Histopathologic study of the excised lesion revealed interlacing bundles of spindle-shaped fibroblast-like cells with whorl formation. We believe that a relationship between melanocytoma of the optic nerve head and a tuberculum sellae meningioma may exist rather than a chance occurrence, as previously suggested by others.
Collapse
Affiliation(s)
- K Shinoda
- Department of Ophthalmology, Toyama Medical and Pharmaceutical University, Toyama, Japan
| | | | | | | | | | | |
Collapse
|
37
|
Hamamichi Y, Okada E, Ichida F. Anomalous origin of the main stem of the left coronary artery from the non-facing sinus of valsalva associated with sudden death in a young athlete. Cardiol Young 2000; 10:147-9. [PMID: 10817300 DOI: 10.1017/s1047951100006624] [Citation(s) in RCA: 9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A young female athlete is described with anomalous origin of the main stem of the left coronary artery from the non-facing sinus of Valsalva who sustained myocardial infarction and died suddenly after physical exertion. Autopsy findings illustrated the mechanistic importance of acute angle take-off of the left main coronary artery and a slit-like orifice, which was likely compressed and obstructed by acute expansion of the aortic wall. This rare type of coronary anomaly has been regarded as having little clinical significance, but it can lead to sudden cardiac death under physical exertion.
Collapse
Affiliation(s)
- Y Hamamichi
- Department of Pediatrics, Toyama Medical and Pharmaceutical University, Japan
| | | | | |
Collapse
|
38
|
Hirano K, Okada E, Tanaka T, Satouchi K. Purification and regiospecificity of multiple enzyme activities of phospholipase A(1) from bonito muscle. Biochim Biophys Acta 2000; 1483:325-33. [PMID: 10666567 DOI: 10.1016/s1388-1981(99)00190-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Phospholipase A(1) (PLA(1)), which catalyzes the hydrolysis of the sn-1 ester bond of diacyl phospholipids, was purified from 100,000 x g supernatant of bonito muscle to homogeneity by ammonium-sulfate precipitation and four consecutive column chromatographies (DEAE anion-exchange, ether-Toyopeal, hydroxylapatite and Toyopeal HW 50S columns). The final preparation showed a single band above the 67-kDa molecular marker on SDS-PAGE, and the molecular mass was determined to be 71.5 kDa by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry using bovine serum albumin as a standard for calibration. The N-terminal 8 amino residues were determined to be Ala-Pro-Ala-Glu-Lys-Val-Lys-Try. Regiospecificity of multiple enzyme activities of the PLA(1) was examined using positionally defined synthetic phosphatidylcholine (PC) and lysophosphatidylcholines (LPC). An acyl ester bond at the sn-1 position of PC was exclusively hydrolyzed by phospholipase activity, and 1-acyl LPC was cleaved to fatty acid and glycerophosphocholine by lysophospholipase (LPL) activity. However, the positional isomer, 2-acyl LPC was a poor substrate for LPL activity. PC/transacylation activity was also observed when excess 2-acyl LPC was supplied in the reaction mixture, and fatty acid at the sn-1 position of donor PC was transferred to the sn-1 position of acceptor LPC. These results demonstrate that the multiple enzyme activities of PLA(1), this is lysophospholipase, transacylase as well as phospholipase, have a strict regiospecificity at the sn-1 position of substrates.
Collapse
Affiliation(s)
- K Hirano
- Department of Applied Biological Science, Faculty of Engineering, Fukuyama University, Fukuyama, Japan
| | | | | | | |
Collapse
|
39
|
Arridge SR, Dehghani H, Schweiger M, Okada E. The finite element model for the propagation of light in scattering media: a direct method for domains with nonscattering regions. Med Phys 2000; 27:252-64. [PMID: 10659765 DOI: 10.1118/1.598868] [Citation(s) in RCA: 126] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
We present a method for handling nonscattering regions within diffusing domains. The method develops from an iterative radiosity-diffusion approach using Green's functions that was computationally slow. Here we present an improved implementation using a finite element method (FEM) that is direct. The fundamental idea is to introduce extra equations into the standard diffusion FEM to represent nondiffusive light propagation across a nonscattering region. By appropriate mesh node ordering the computational time is not much greater than for diffusion alone. We compare results from this method with those from a discrete ordinate transport code, and with Monte Carlo calculations. The agreement is very good, and, in addition, our scheme allows us to easily model time-dependent and frequency domain problems.
Collapse
Affiliation(s)
- S R Arridge
- Department of Computer Science, University College London, England
| | | | | | | |
Collapse
|
40
|
|
41
|
Hayashi A, Okada E, Maruyama Y. Stepladder V-Y advancement flaps for resurfacing various shaped defects of the sacrogluteal region. European Journal of Plastic Surgery 1999. [DOI: 10.1007/s002380050178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
42
|
Okada E, Oida K, Tada H, Asazuma K, Eguchi K, Tohda G, Kosaka S, Takahashi S, Miyamori I. Hyperhomocysteinemia is a risk factor for coronary arteriosclerosis in Japanese patients with type 2 diabetes. Diabetes Care 1999; 22:484-90. [PMID: 10097933 DOI: 10.2337/diacare.22.3.484] [Citation(s) in RCA: 73] [Impact Index Per Article: 2.9] [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: 02/03/2023]
Abstract
OBJECTIVE An increased plasma homocysteine level is an important risk factor for vascular disease, including coronary atherosclerosis, in the general population. However, the role of hyperhomocysteinemia in the development of coronary artery disease (CAD) in patients with type 2 diabetes is unknown. Therefore, we have endeavored to determine the relationship between plasma homocysteine levels and the presence of coronary arteriosclerosis in patients with type 2 diabetes. RESEARCH DESIGN AND METHODS The study group consisted of 145 Japanese patients (95 men and 50 women) who underwent routine coronary angiography to assess chest pain or suspected CAD. Plasma total homocysteine level, lipid level, and parameters of fibrinolytic activity were measured. All patients were identified as diabetic or nondiabetic by the new American Diabetes Association (ADA) criteria. The diagnoses of all patients studied were confirmed by coronary angiography. The severity of coronary artery stenosis was quantified using CAD scoring on the basis of prior reports, and subjects were graded as nonstenotic, stenotic single-vessel, stenotic two-vessel, or stenotic three-vessel based on the number of stenotic coronary arteries. Patients were classified into two groups: those with stenotic vessels and those without stenotic vessels. RESULTS The plasma homocysteine level was significantly higher in patients with than in patients without stenotic vessels (13.8 +/- 3.9 vs. 11.7 +/- 3.9 mumol/l, respectively; P = 0.0009). The number of stenotic coronary arteries, which was used to grade each case as nonstenotic, stenotic single-vessel, stenotic two-vessel, or stenotic three-vessel, was related only to the total homocysteine level in the diabetic (diabetes mellitus [DM]) group, but it was associated with lipoprotein(a) in the nondiabetic (non-diabetes mellitus [non-DM]) group. Spearman's rank correlation test demonstrated that the plasma homocysteine level was strongly correlated with CAD score, both in the entire study group and in the DM group (P = 0.003 for the entire group and P = 0.011 for the DM group). Hyperhomocysteinemia, which was defined as total homocysteine level > 14.0 mumol/l, was seen in 57 (39.3%) of the patients. The CAD score was highest in diabetic patients with hyperhomocysteinemia (P < 0.05). CONCLUSIONS There seems to be a clear relationship between hyperhomocysteinemia and an increased risk of coronary arteriosclerosis in Japanese patients with type 2 diabetes.
Collapse
Affiliation(s)
- E Okada
- Third Department of Internal Medicine, Fukui Medical University, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Abstract
Cytokines are powerful regulators of the immune response. In this study, an HIV-1 envelope DNA vaccine and interleukin 15 (IL-15) expression plasmid were intranasally administered to mice. A significant increase in the HIV-1-specific DTH response and CTL activity, and decrease in the serum IgG/IgG2a ratio was observed in the group which received DNA vaccine and IL-15 expression plasmid compared to DNA vaccination alone. Restimulated immune lymphoid cells from mice which received both agents showed enhanced production of interferon-gamma (IFN-gamma) and reduced secretion of IL-4. However, administration of DNA vaccine with IL-15 and IL-2 or IL-12 expression plasmids did not alter the effect of IL-15 expression plasmid on the DNA vaccine. These results indicate that intranasal administration of DNA vaccine and IL-15 expression plasmid is capable of enhancing the T helper type 1 (Th1) dependent HIV-1-specific cell-mediated immunity, and that the IL-15 and IL-2 or IL-12 expression plasmids may not have a synergistic effect on the immune response induced by DNA vaccine in vivo.
Collapse
MESH Headings
- Adjuvants, Immunologic/genetics
- Administration, Intranasal
- Amino Acid Sequence
- Animals
- Cytokines/biosynthesis
- DNA, Viral/immunology
- Drug Synergism
- Feces/chemistry
- Female
- HIV Antibodies/biosynthesis
- HIV-1/genetics
- HIV-1/immunology
- Hypersensitivity, Delayed/immunology
- Immunity, Cellular/genetics
- Immunity, Cellular/immunology
- Immunoglobulin A/biosynthesis
- Immunoglobulin G/biosynthesis
- Injections, Intramuscular
- Interleukin-12/genetics
- Interleukin-12/immunology
- Interleukin-15/biosynthesis
- Interleukin-15/genetics
- Interleukin-2/genetics
- Interleukin-2/immunology
- Mice
- Mice, Inbred BALB C
- Molecular Sequence Data
- Plasmids/immunology
- T-Lymphocytes, Cytotoxic/immunology
- Vaccines, DNA/immunology
- Vaccines, DNA/pharmacology
Collapse
Affiliation(s)
- K Q Xin
- Department of Bacteriology, Yokohama City University School of Medicine, Yokohama, Japan
| | | | | | | | | | | | | |
Collapse
|
44
|
Ilzumi T, Ilyama T, Tanaka W, Okada E, Kamiyama Y, Okano Y, Sato S, Yazaki T, Umeda T, Imamura T. Immunohistochemical Studies of Proliferating Cell Nuclear Antigen and Cathepsin D in Transitional Cell Carcinoma of the Urinary Bladder. J Urol 1999. [DOI: 10.1016/s0022-5347(01)62006-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- T. Ilzumi
- Departments of Urology and Surgical Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - T. Ilyama
- Departments of Urology and Surgical Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - W. Tanaka
- Departments of Urology and Surgical Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - E. Okada
- Departments of Urology and Surgical Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - Y. Kamiyama
- Departments of Urology and Surgical Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - Y. Okano
- Departments of Urology and Surgical Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - S. Sato
- Departments of Urology and Surgical Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - T. Yazaki
- Departments of Urology and Surgical Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - T. Umeda
- Departments of Urology and Surgical Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - T. Imamura
- Departments of Urology and Surgical Pathology, Teikyo University School of Medicine, Tokyo, Japan
| |
Collapse
|
45
|
Lu Y, Xin KQ, Hamajima K, Tsuji T, Aoki I, Yang J, Sasaki S, Fukushima J, Yoshimura T, Toda S, Okada E, Okuda K. Macrophage inflammatory protein-1alpha (MIP-1alpha) expression plasmid enhances DNA vaccine-induced immune response against HIV-1. Clin Exp Immunol 1999; 115:335-41. [PMID: 9933462 PMCID: PMC1905150 DOI: 10.1046/j.1365-2249.1999.00793.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.0] [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] [Indexed: 02/07/2023] Open
Abstract
CD8+ cell-secreted CC-chemokines, MIP-1alpha, and MIP-beta have recently been identified as factors which suppress HIV. In this study we co-inoculated MIP-1alpha expression plasmid with a DNA vaccine constructed from HIV-1 pCMV160IIIB and pcREV, and evaluated the effect of the adjuvant on HIV-specific immune responses following intramuscular and intranasal immunization. The levels of both cytotoxic T lymphocyte (CTL) activity and DTH showed that HIV-specific cell-mediated immunity (CMI) was significantly enhanced by co-inoculation of the MIP-1alpha expression plasmid with the DNA vaccine compared with inoculation of the DNA vaccine alone. The HIV-specific serum IgG1/IgG2a ratio was significantly lowered when the plasmid was co-inoculated in both intramuscular and intranasal routes, suggesting a strong elicitation of the T helper (Th) 1-type response. When the MIP-1alpha expression plasmid was inoculated intramuscularly with the DNA vaccine, an infiltration of mononuclear cells was observed at the injection site. After intranasal administration, the level of mucosal secretory IgA antibody was markedly enhanced. These findings demonstrate that MIP-1alpha expression plasmid inoculated together with DNA vaccine acts as a strong adjuvant for eliciting Th1-derived immunity.
Collapse
MESH Headings
- AIDS Vaccines/genetics
- AIDS Vaccines/immunology
- AIDS Vaccines/pharmacology
- Adjuvants, Immunologic
- Animals
- Chemokine CCL3
- Chemokine CCL4
- Drug Synergism
- Drug Therapy, Combination
- Female
- Gene Products, rev/genetics
- Gene Products, rev/immunology
- HIV Antibodies/blood
- HIV Envelope Protein gp160/genetics
- HIV Envelope Protein gp160/immunology
- HIV Infections/prevention & control
- HIV-1/immunology
- Immunity, Cellular
- Macrophage Inflammatory Proteins/genetics
- Macrophage Inflammatory Proteins/immunology
- Macrophage Inflammatory Proteins/pharmacology
- Mice
- Mice, Inbred BALB C
- T-Lymphocytes, Cytotoxic
- Vaccines, DNA/immunology
- Vaccines, DNA/pharmacology
- rev Gene Products, Human Immunodeficiency Virus
Collapse
Affiliation(s)
- Y Lu
- Department of Bacteriology, Yokohama City University School of Medicine, Yokohama, Japan
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
46
|
Hayashi A, Maruyama Y, Onishi K, Okada E. Minimally nvasive management of breast silicone granulomas. MINIM INVASIV THER 1999. [DOI: 10.3109/13645709909152927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
47
|
Tohda G, Oida K, Okada Y, Kosaka S, Okada E, Takahashi S, Ishii H, Miyamori I. Expression of thrombomodulin in atherosclerotic lesions and mitogenic activity of recombinant thrombomodulin in vascular smooth muscle cells. Arterioscler Thromb Vasc Biol 1998; 18:1861-9. [PMID: 9848877 DOI: 10.1161/01.atv.18.12.1861] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.7] [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: 11/16/2022]
Abstract
Thrombomodulin (TM), a thrombin receptor protein found on the endothelial cell surface, contains 6 tandem epidermal growth factor (EGF)-like structures. Recombinant human TM peptide containing these 6 EGF-like domains (rTME1-6) exhibits mitogenic activity in Swiss 3T3 cells. We examined the localization of TM in atherosclerotic lesions and the effects of rTME1-6 on the growth of cultured rat vascular smooth muscle cells (SMCs). Immunohistochemical analysis demonstrated that TM antigen was localized on monocytes, macrophages, and vascular SMCs. In cultured vascular SMCs, rTME1-6 accelerated [3H]thymidine uptake into DNA in a dose-dependent manner up to 3.4 times the control level. This mitogenic activity was abolished by addition of polyclonal anti-human TM antibody. The rTME1-6-induced mitogenesis was enhanced by EGF. However, a neutralizing monoclonal antibody against the EGF receptor (monoclonal antibody 225) did not inhibit the mitogenic activity of rTME1-6. Calphostin C, a specific protein kinase C inhibitor, and lavendustin-A, an inhibitor of EGF receptor-specific protein tyrosine kinase, inhibited the mitogenic activities of both rTME1-6 and EGF. Finally, rTME1-6 treatment increased the level of phosphorylated mitogen-activated protein kinase in SMCs. Together, these results suggest that TM expression in atherosclerotic lesions may be associated with promotion of atherosclerosis through its mitogenic activity in vascular SMCs.
Collapse
Affiliation(s)
- G Tohda
- Third Department of Internal Medicine, Faculty of Medicine, Fukui Medical University, Fukui, Japan
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Inui Y, Orihashi T, Okada E, Nakagawa T, Ebihara A, Suzuki F, Nakamura Y. Effects of substitution of Val for Leu11 of ovine angiotensinogen on renin activity. Biosci Biotechnol Biochem 1998; 62:2267-9. [PMID: 9972250 DOI: 10.1271/bbb.62.2267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A mutant angiotensinogen, L11V, in which Val11 was substituted for Leu11 of ovine angiotensinogen was prepared to have the same scissile peptide bond as the human one. The mutation didn't vary Km and kcat of human renin for the ovine substrate, but decreased those of rat renin to one half and one fortieth, respectively. Distances between the P1' subsite of angiotensinogens and the 224th (human renin numbering) residue in the S1' subsite of renins were estimated by molecular modelings. The marked decrease in kcat of rat renin for L11V could be attributed to the elongated distance between Val11 of L11V and Val221 of rat renin. It was also suggested that the distance is the reason why the human substrate cannot be cleaved by heterologous renins.
Collapse
Affiliation(s)
- Y Inui
- United Graduate School of Agricultural Science, Gifu University, Japan
| | | | | | | | | | | | | |
Collapse
|
49
|
Zenda T, Sato H, Kobayashi T, Sawada T, Takagi Y, Miyamoto S, Okada E, Kitagawa M, Takeda Y, Nakanuma Y. [An autopsied case of idiopathic portal hypertension accompanied by right heart failure secondary to pulmonary hypertension]. Nihon Shokakibyo Gakkai Zasshi 1998; 95:1151-6. [PMID: 9805935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- T Zenda
- Department of Internal Medicine, Himi Municipal Hospital
| | | | | | | | | | | | | | | | | | | |
Collapse
|
50
|
Firbank M, Okada E, Delpy DT. A theoretical study of the signal contribution of regions of the adult head to near-infrared spectroscopy studies of visual evoked responses. Neuroimage 1998; 8:69-78. [PMID: 9698577 DOI: 10.1006/nimg.1998.0348] [Citation(s) in RCA: 140] [Impact Index Per Article: 5.4] [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: 11/22/2022] Open
Abstract
Near-infrared (NIR) spectroscopy has been used in studies of the cerebral hemodynamic response to visual processing. In this paper, we present theoretical results from finite element and Monte Carlo modeling in order to help understand the contribution to the NIR signal from different parts of the head. The results from the models show that at the typical optode spacings used in these studies, an infrared spectroscopy measurement of intensity is sensitive to the outer 1-2 mm of the cortical gray matter and the partial optical path length in the gray matter is approximately 10 mm, compared with a total optical path length of 400 mm. When the NIR measurement is of change in mean photon arrival time (or phase shift), the signal comes from the upper 2-4 mm of the cortical surface and there is an increased lateral spread of the contributing tissue. We predict that for a 4-cm separation of input and detection optodes at 800 nm, a 1 microM change in hemoglobin concentration in the cortex corresponds to an attenuation change of approximately 0.001 OD (optical density) or 1 ps mean time change. Movement of the brain caused by this increase in volume will cause an absorption change of approximately half this magnitude, but does not affect the photon arrival time at 4-cm spacing. A discrepancy between the predicted and the experimentally measured intensities may support the supposition that the NIR signal is actually very sensitive to changes occurring in the pial cerebral vessels lying on the brain surface.
Collapse
Affiliation(s)
- M Firbank
- University Department of Radiology, Royal Victoria Infirmary, Newcastle upon Tyne, United Kingdom
| | | | | |
Collapse
|