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Iijima S, Murayama K, Takayama N, Akiyama T, Ikarashi Y, Sugiyama M, Matsunaga K. Analysis of patch testing with cocamidopropyl betaine and its impurities in patients with intractable scalp dermatitis in a single clinic in Japan. Contact Dermatitis 2023; 89:368-373. [PMID: 37550079 DOI: 10.1111/cod.14393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 07/23/2023] [Accepted: 07/26/2023] [Indexed: 08/09/2023]
Abstract
BACKGROUND The allergen responsible for cocamidopropyl betaine (CAPB) allergies has been debated. OBJECTIVES To investigate the sensitizing agents of CAPB, the patch test positivity rates of impurities were examined in Japanese patients with CAPB-related allergic contact dermatitis. MATERIALS AND METHODS Thirty patients with scalp dermatitis and positive patch tests for CAPB and/or lauramidopropyl betaine (LAPB) were enrolled in this study. They were patch tested with the detergents that they had been using at the time of their first visit and with the impurities dimethylaminopropylamine (DMAPA) and lauramidopropyl dimethylamine (LAPDMA). RESULTS The positivity rate in patch tests of the 37 detergents that the patients had been using was 78.4% (29/37). The positivity rates of DMAPA 1% pet., 1% aq. and 0.2% aq. were 32.1% (9/28), 14.3% (4/28) and 13.3% (4/30), respectively, whereas those of LAPDMA 0.1% and 0.05% were 30.0% (9/30) and 16.7% (5/30), respectively. Among the 30 patients, 6 exhibited positive results for both DMAPA and LAPDMA, 3 showed positive results for DMAPA alone and 6 produced positive results for LAPDMA alone. CONCLUSION Patch tests produced an overall positivity rate for DMAPA, LAPDMA or both of 50.0% (15/30) in patients with scalp dermatitis and positive patch test results for CAPB and/or LAPB.
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Affiliation(s)
- Shigeruko Iijima
- Division of Dermatology, Hanamizuki Clinic, Ushiku, Ibaraki, Japan
| | - Kayo Murayama
- Division of Dermatology, Hanamizuki Clinic, Ushiku, Ibaraki, Japan
| | - Noriko Takayama
- Division of Gynecology, Hanamizuki Clinic, Ushiku, Ibaraki, Japan
| | - Takumi Akiyama
- Division of Environmental Chemistry, National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
| | - Yoshiaki Ikarashi
- Division of Environmental Chemistry, National Institute of Health Sciences, Kawasaki, Kanagawa, Japan
| | - Mariko Sugiyama
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Nagoya, Aichi, Japan
- The Association of SSCI-Net, Nagoya, Aichi, Japan
| | - Kayoko Matsunaga
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Nagoya, Aichi, Japan
- The Association of SSCI-Net, Nagoya, Aichi, Japan
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Kakurai M, Oya K, Furuta J, Iijima S, Nomura T. A Case of Eosinophilic Pustular Folliculitis with Vegetating Lesions on the Lower Legs and Feet Resembling Pemphigus Vegetans. Acta Derm Venereol 2023; 103:adv11622. [PMID: 37083096 PMCID: PMC10134064 DOI: 10.2340/actadv.v103.11622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 04/22/2023] Open
Abstract
Abstract is missing (Short communication)
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Affiliation(s)
- Masakazu Kakurai
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Kazumasa Oya
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan.
| | - Junichi Furuta
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Shigeruko Iijima
- Department of Dermatology, Ryugasaki Saiseikai Hospital, Ibaraki, Japan
| | - Toshifumi Nomura
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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Miyahara H, Kubota N, Furuta J, Iijima S, Nomura T. Novel disinfectant olanexidine gluconate induced contact dermatitis. J Eur Acad Dermatol Venereol 2023. [PMID: 37016966 DOI: 10.1111/jdv.19097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/28/2023] [Indexed: 04/06/2023]
Affiliation(s)
- H Miyahara
- Department of Dermatology Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - N Kubota
- Department of Dermatology Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - J Furuta
- Department of Dermatology Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - S Iijima
- Division of Dermatology, Hanamizuki Clinic, Ushiku, Ibaraki, Japan
- Department of Dermatology, Ryugasaki Saiseikai Hospital, Ryugasaki, Ibaraki, Japan
| | - T Nomura
- Department of Dermatology Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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Iijima S, Murayama K, Takayama N, Shigemitsu S, Ishihara T, Sugiyama M, Matsunaga K. [ANALYSIS OF PATCH TEST RESULTS USING COCAMIDOPROPYL BETAINE-RELATED SURFACTANTS]. Arerugi 2023; 72:1038-1045. [PMID: 37730347 DOI: 10.15036/arerugi.72.1038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/22/2023]
Abstract
BACKGROUND A few previous studies have compared the patch test (PT) results obtained using different types of PT units. OBJECTIVES This study aimed to compare PT results between the Patch Tester 'Torii' and Finn Chamber. METHODS Thirty-four patients with intractable scalp dermatitis were enrolled in this study. PT were performed with three kinds of amphoteric surfactants, cocamidopropyl betaine (CAPB), high-concentration CAPB (h-CAPB), and lauramidopropyl betaine (LAPB), using both the Patch Tester 'Torii' and Finn Chamber, and the changes in the subjects' symptoms after they stopped using these surfactants were examined. RESULTS Regarding the PT results for CAPB, h-CAPB, and LAPB, the results obtained with the Finn Chamber included a significantly lower frequency of irritant reactions (CAPB; p=0.003, h-CAPB; p=0.046, LAPB; p=0.002) than those obtained with the Patch Tester 'Torii'. However, there were no significant differences in the frequencies of positive reactions between the Patch Tester 'Torii' and Finn Chamber in each surfactant. The same tendency was seen in PT with LAPB (p=0.041) in 17 selected patients, who showed positive or doubtful reactions in PT performed with the surfactant-containing products they had used and whose symptoms 'markedly improved' or 'improved' after they stopped using these products. Among these surfactants, CAPB exhibited the highest positivity rate; however, the differences were not significant. CONCLUSION In patients with intractable scalp dermatitis, PT of the abovementioned surfactants performed using the Finn Chamber were superior to those conducted using the Patch Tester 'Torii' because they resulted in fewer irritant reactions.
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Affiliation(s)
- Shigeruko Iijima
- Hanamizuki Clinic
- Department of Dermatology, Ryugasaki Saiseikai Hospital
| | | | | | | | - Takuma Ishihara
- Innovative and Clinical Research Promotion Center, Gifu University Hospital
| | - Mariko Sugiyama
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine
- The Association of SSCI-Net
| | - Kayoko Matsunaga
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine
- The Association of SSCI-Net
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Iijima S, Enami C, Sato M, Tsunoda T, Otoyama K. Neutrophilic dermatosis with necrobiotic changes as an unusual manifestation after the first shot of a
COVID
‐19
mRNA
vaccine together with a high fever and liver injury. J Cutaneous Imm & Allergy 2022. [PMCID: PMC9538515 DOI: 10.1002/cia2.12279] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Shigeruko Iijima
- Department of Dermatology Ryugasaki Saiseikai Hospital Ryugasaki Japan
- Hanamizuki Clinic Ushiku Japan
| | - Chiaki Enami
- Department of Gastroenterology and Hepatology Ryugasaki Saiseikai Hospital Ryugasaki Japan
| | - Mikio Sato
- Department of Gastroenterology and Hepatology Ryugasaki Saiseikai Hospital Ryugasaki Japan
| | - Takahiko Tsunoda
- Department of Dermatology Yamagata City Hospital Saiseikan Yamagata Japan
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Iijima S, Murayama K, Takayama N, Akiyama T, Sugiyama M, Matsunaga K. [A CASE OF ALLERGIC CONTACT DERMATITIS CAUSED BY DETERGENTS CONTAINING COCAMIDOPROPYL BETAINE IN WHICH AN IMPURITY WAS THE POSSIBLE CAUSATIVE AGENT]. Arerugi 2022; 71:1136-1142. [PMID: 36372425 DOI: 10.15036/arerugi.71.1136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Cocamidopropyl betaine (CAPB) is an amphoteric surfactant. It has several functions, including producing effervescence and washing effects, and thus, it is used in many cleansing products, such as shampoo and liquid body cleansers. Recently, it has become clear that some impurities that arise during the manufacturing process can have sensitizing effects. Herein, we report a case of allergic contact dermatitis caused by detergents containing CAPB, in which an impurity was determined to be the possible causative agent by patch testing and chemical analysis.A 64-year-old Japanese female developed a skin rash on the hairlines of her forehead and nuchal region one month before her first visit to our clinic. Later, the rashes, which were composed of desquamative erythema, expanded to her face, neck, upper back, and chest. Patch tests produced positive results for a shampoo and liquid body cleanser (1% aq.) that she had used as well as for CAPB (1% aq.); lauramidopropyl betaine (LAPB) (1% aq.); and lauramidopropyl dimethylamine (LAPDMA) (0.05% aq.), which is an impurity of CAPB. The rashes resolved completely after we instructed her to use products without CAPB and LAPB. When issuing such instructions, clinicians should have correct knowledge about surfactants, such as the differences between cosmetic ingredient names and quasi-drug ingredient names.
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Affiliation(s)
| | | | | | - Takumi Akiyama
- Division of Environmental Chemistry, National Institute of Health Sciences
| | - Mariko Sugiyama
- Skin Safety Case Information Network
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine
| | - Kayoko Matsunaga
- Skin Safety Case Information Network
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine
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Iijima S, Murayama K, Takayama N. [ANALYSIS OF PATCH TEST RESULTS FOR INDIVIDUAL INGREDIENTS IN PATIENTS WITH ALLERGIC CONTACT DERMATITIS CAUSED BY 10% EFINACONAZOLE NAIL SOLUTION]. Arerugi 2022; 71:313-320. [PMID: 35691899 DOI: 10.15036/arerugi.71.313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
BACKGROUND Ten percent efinaconazole nail solution (EFCZ solution) is a new topical triazole antifungal drug, and we sometimes encounter patients with allergic contact dermatitis (ACD) caused by EFCZ solution in our outpatient clinic. However, no previous reports have summarized the patch test (PT) results obtained for individual ingredients in several patients with EFCZ solution-induced ACD. OBJECTIVES This study aimed to 1) confirm the causative agent of EFCZ solution-induced ACD based on PT of individual ingredients and 2) analyze the optimal concentration and vehicle for such PT on the basis of previous studies. PATIENTS AND METHODS We clinically diagnosed eight patients with EFCZ solution-induced ACD from Sep. 2014 to Aug. 2021, and performed 48-hour closed PT using EFCZ solution and its ingredients. Readings were done on days (D) 2, 3, and 7 according to the International Contact Dermatitis Research Group criteria. RESULTS Six of the 8 patients underwent PT with EFCZ solution, and all showed + to +++ reactions on D3. The results for the main component, EFCZ, were + to +++ on D3 in all patients. Two patients were patch tested with both 10% EFCZ in ethanol and 10% EFCZ in petrolatum, which produced similar reactions. One patient had an allergic reaction to ethanol. CONCLUSIONS The causative agent of EFCZ solution-induced ACD was EFCZ in all patients. For PT, we recommend EFCZ solution as is, its 10-fold dilution and 1% and 0.1% EFCZ in petrolatum.
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Affiliation(s)
- Shigeruko Iijima
- Hanamizuki Clinic
- Department of Dermatology, Ryugasaki Saiseikai Hospital
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8
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Iijima S, Takayama N. Serum zinc levels in patients with phlegmons as a marker of the severity of infection and the potential of zinc supplementation to reduce the risk of recurrence. J Dermatol 2021; 49:184-189. [PMID: 34687066 DOI: 10.1111/1346-8138.16209] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 10/02/2021] [Accepted: 10/11/2021] [Indexed: 01/19/2023]
Abstract
We analyzed the serum zinc levels of 37 patients with 40 phlegmon lesions. The mean serum zinc level was 52.1 ± 16.4 μg/dL. The serum zinc level was negatively correlated with the C-reactive protein (CRP) level (r = -0.66) and white blood cell (WBC) count (r = -0.56). It was also positively correlated with the serum levels of albumin, hemoglobin, and hematocrit (r = 0.57, 0.50, and 0.50, respectively). Patients with serum zinc levels of <60 μg/dL had higher CRP levels and WBC counts (p < 0.005 and p < 0.05, respectively) and lower albumin, hemoglobin, and hematocrit levels (p < 0.001, p < 0.01, and p < 0.01, respectively), and were more likely to be hospitalized (p < 0.05) than those with serum zinc levels of ≥60 μg/dL. Patients with low serum zinc levels were given zinc tablets. Three of the seven patients who developed recurrent phlegmons did not develop any further lesions after taking zinc tablets for >10 months. Of the remaining patients, one only developed a minimal lesion, and another two experienced recurrence twice but did not have any further lesions for 10 and 15 months, respectively. These findings indicate that in patients with phlegmons the serum zinc level is a suitable marker of the severity of infection, and zinc supplementation reduces the risk of further recurrence in patients whose lesions relapse.
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Affiliation(s)
- Shigeruko Iijima
- Department of Dermatology, Ryugasaki Saiseikai Hospital, Ryugasaki, Japan.,Division of Dermatology, Hanamizuki Clinic, Ushiku, Japan
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Iijima S, Kodama T, Ishikawa K. A case of pregabalin‐induced drug eruptions accompanied by extremely high serum thymus and activation‐regulated chemokine levels. J Cutan Immunol Allergy 2021. [DOI: 10.1002/cia2.12154] [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: 11/06/2022] Open
Affiliation(s)
- Shigeruko Iijima
- Department of Dermatology Ryugasaki Saiseikai Hospital Ryugasaki Japan
- Division of Dermatology Hanamizuki Clinic Ushiku Japan
| | - Takahide Kodama
- Department of Respiratory Medicine Ryugasaki Saiseikai Hospital Ryugasaki Japan
| | - Kimito Ishikawa
- Department of Cardiology Ryugasaki Saiseikai Hospital Ryugasaki Japan
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10
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Iijima S, Miyamoto H, Tsunoda T, Otoyama K. Two cases of cold‐associated perniosis of the thighs in stable workers successfully treated with diaminodiphenylsulfone. J Dermatol 2020; 47:e404-e406. [DOI: 10.1111/1346-8138.15554] [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: 11/28/2022]
Affiliation(s)
| | | | - Takahiko Tsunoda
- Department of Dermatology Yamagata City Hospital Saiseikan Yamagata Japan
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11
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Iijima S, Numata M, Sasaki K. [ALLERGIC CONTACT DERMATITIS DUE TO NITRILE RUBBER GLOVES: ETHYL ISOTHIOCYANATE AND BUTYL ISOTHIOCYANATE AS POSSIBLE CAUSATIVE CHEMICALS]. Arerugi 2020; 69:669-677. [PMID: 32963190 DOI: 10.15036/arerugi.69.669] [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] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND The causative chemicals responsible for nitrile rubber glove-induced allergic contact dermatitis have not been fully elucidated. SUBJECT This case involved a 36-year-old female, who developed an erythematous rash on her hands after one and a half months of wearing nitrile rubber gloves at her workplace. METHODS Patch tests were performed using the gloves as is, and the Japanese standard allergen 2008 and their components. The gloves were chemically analyzed and several detected substances were subjected to further patch testing. RESULTS The patient exhibited positive patch test reactions to nitrile rubber gloves as is, as well as to the dithiocarbamate mix and thiuram mix in the Japanese standard allergen 2008. Further patch testing revealed positive reactions to zinc diethyldithiocarbamate (ZDEC) and tetraethylthiuram disulfide (TETD) and weak positive reactions to zinc dimethyldithiocarbamate (ZDMC) and tetramethylthiuram monosulfide (TMTM). Chemical analysis revealed that ethyl isothiocyanate (EITC) and butyl isothiocyanate (BITC), which might have been produced from dithiocarbamate-type accelerators (DTCs) or thiuram-type accelerators (thiurams) during the vulcanization process, were present in the nitrile rubber gloves the patient used at her workplace, as was ZDBC. No other DTCs or thiurams were detected. Patch testing of the detected materials produced positive reactions to EITC and BITC, but not to ZDBC. CONCLUSION We diagnosed the patient with allergic contact dermatitis due to the EITC and BITC present in nitrile rubber gloves, and considered that alkyl isothiocyanate might also have played a causative role. We propose that nitrile rubber gloves should be produced without using vulcanization accelerators.
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Affiliation(s)
| | - Mitsuru Numata
- Biotechnology Center, National Institute of Technology and Evaluation (NITE)
| | - Kazumi Sasaki
- Biotechnology Center, National Institute of Technology and Evaluation (NITE)
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Iijima S, Matsunaga K. A case of allergic contact dermatitis caused by Olanedine solution-A diagnostic patch-testing method involving dried filter paper. Contact Dermatitis 2020; 83:286-291. [PMID: 32452028 DOI: 10.1111/cod.13620] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2020] [Revised: 05/17/2020] [Accepted: 05/24/2020] [Indexed: 12/01/2022]
Abstract
BACKGROUND Olanedine solution is a new antiseptic, and several cases of allergic contact dermatitis caused by the agent were reported in 2018; however, these cases were diagnosed based on positive results in 2-day closed patch testing of Olanedine solution "as is." OBJECTIVES To present another case of Olanedine-induced allergic contact dermatitis and to analyze the optimal patch-testing method for this condition. METHODS A 34-year-old Japanese female patient and 25 healthy control subjects were patch tested using wet filter paper, which had been treated with 15 μL Olanedine solution, and dried filter paper, which had been treated with 15 μL Olanedine solution and then dried. RESULTS The patient and all of the control subjects exhibited false-positive reactions due to irritation in the 2-day closed patch tests with wet filter paper containing Olanedine solution "as is." The tests with dried filter paper produced a positive reaction on day 7 in the patient, and negative reactions in all control subjects. CONCLUSIONS It is preferable to perform 2-day closed patch tests using filter paper with the test solution "as is," which had been dried before application in order to correctly diagnose antiseptic-induced allergic contact dermatitis.
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Affiliation(s)
- Shigeruko Iijima
- Division of Dermatology, Hanamizuki Clinic, Ushiku, Ibaraki, Japan.,Department of Dermatology, Ryugasaki Saiseikai Hospital, Ryugasaki, Ibaraki, Japan
| | - Kayoko Matsunaga
- Department of Integrative Medical Science for Allergic Disease, Fujita Health University School of Medicine, Nagoya, Aichi, Japan
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Iijima S, Miyazaki K, Sato S, Kodama T. A case of de novo psoriasis induced by atezolizumab in a patient with advanced lung cancer. J Cutan Immunol Allergy 2019. [DOI: 10.1002/cia2.12087] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Shigeruko Iijima
- Department of Dermatology Ryugasaki Saiseikai Hospital Ryugasaki Japan
- Hanamizuki Clinic Ushiku Japan
| | - Kunihiko Miyazaki
- Department of Respiratory Medicine Ryugasaki Saiseikai Hospital Ryugasaki Japan
| | - Shinya Sato
- Department of Respiratory Medicine Ryugasaki Saiseikai Hospital Ryugasaki Japan
| | - Takahide Kodama
- Department of Respiratory Medicine Ryugasaki Saiseikai Hospital Ryugasaki Japan
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14
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Affiliation(s)
- Shigeruko Iijima
- Hanamizuki Clinic Ushiku Japan
- Ryugasaki Saiseikai General Hospital Ryugasaki Japan
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15
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Iijima S, Takayama N. Allergic contact dermatitis caused by isopropyl methylphenol, a new hapten. Contact Dermatitis 2019; 80:402-403. [PMID: 30653678 DOI: 10.1111/cod.13217] [Citation(s) in RCA: 2] [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] [Received: 12/19/2018] [Revised: 01/10/2019] [Accepted: 01/12/2019] [Indexed: 11/29/2022]
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Kurono H, Torikai Y, Iwanami T, Iijima S, Kunimoto M, Hara H. Severity of orthostatic hypotension in the stages of Parkinson’s disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Maruyama M, Higashiguchi T, Ishibashi I, Suzuki Y, Iijima S, Inukai M, Iishi T, Kawasaki N, Kurata N, Chiba M, Teramoto F, Nakamura E, Kayashita J, Tabei I. MON-P241: Feasibility of International Proposed Standardized Enteral Connector for Semi-Solid Formula Feeding. Clin Nutr 2017. [DOI: 10.1016/s0261-5614(17)30848-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Iijima S, Kojo K, Takayama N, Hiragun M, Kan T, Hide M. Case of cholinergic urticaria accompanied by anaphylaxis. J Dermatol 2017; 44:1291-1294. [PMID: 28665007 DOI: 10.1111/1346-8138.13951] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 05/19/2017] [Indexed: 11/27/2022]
Abstract
Cholinergic urticaria occasionally occurs in combination with anaphylactic symptoms. However, this has not been widely reported. Herein, we report the case of a 14-year-old Japanese male who was diagnosed with cholinergic urticaria accompanied by anaphylaxis. The patient, who was suffering from atopic dermatitis and bronchial asthma, had developed wheals after exercising or bathing, which would have increased his core body temperature, since summer 2014. He experienced two episodes of severe systemic symptoms and wheal development when he took a bath after eating in December 2014 and the following January. His symptoms included wheezing, numbness of the lips, respiratory distress, blindness and fainting. Laboratory tests revealed the following results: serum IgE level, 7060 IU/mL; titers of specific immunoglobulin E antibodies against Malassezia and MGL_1304, 31.70 UA/mL and 112.5 ng/mL, respectively. A histamine release test against human sweat revealed a class 4 response. Skin prick and intradermal tests against autologous sweat produced immediate-type positive reactions. According to these findings, we diagnosed him with the sweat-hypersensitivity type of cholinergic urticaria accompanied by anaphylaxis. He was successfully treated with lafutidine, a histamine H2 receptor antagonist, in combination with fexofenadine. It is important for dermatologists to be aware that cholinergic urticaria can progress to anaphylaxis.
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Affiliation(s)
| | | | | | - Makiko Hiragun
- Department of Dermatology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takanobu Kan
- Department of Dermatology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Michihiro Hide
- Department of Dermatology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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Inoue S, Furuta JI, Fujisawa Y, Onizawa S, Ito S, Sakiyama M, Kobayashi K, Kanou T, Iijima S, Ohi T, Okubo C, Moriyama Y, Okiyama N, Fujimoto M. Pyoderma gangrenosum and underlying diseases in Japanese patients: A regional long-term study. J Dermatol 2017. [PMID: 28635156 DOI: 10.1111/1346-8138.13937] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Pyoderma gangrenosum (PG) is a chronic inflammatory disease of unknown cause that presents as an inflammatory and ulcerative disorder of the skin. PG is often associated with an underlying systemic disease. However, the frequencies of the underlying diseases are unclear in Japanese patients. In this retrospective, observational study, all patients diagnosed with PG who visited dermatology departments of nine regional hospitals in and around Ibaraki Prefecture were collected from 1982 to 2011 or 2014. The diagnoses of PG were based on the characteristic clinical and histological appearances and ruling out of infection. Sixty-two PG patients, including 29 males and 33 females, were identified. The ages of onset were 16-89 years, and the mean age was 50.2 years. Fifty (80%) of the 62 patients presented with an ulcerative PG, and the lower leg was the most common site (74%). Forty-six (74%) PG patients had underlying diseases. The most frequent was ulcerative colitis (32%), followed by myelodysplastic syndrome (11%), rheumatoid arthritis (6%) and aortitis syndrome (5%). For treatment, 54 cases (87%) received systemic corticosteroids and 10 received additional treatment with cyclosporin. There was no significant correlation between underlying diseases and response to the initial treatment. Multivariate analysis revealed that the number of affected sites negatively correlated with successful initial treatment. Fifteen (24%) of the 62 cases relapsed. In conclusion, ulcerative colitis and hematological disorders were frequently associated with PG while approximately a quarter of the cases were idiopathic.
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Affiliation(s)
- Sae Inoue
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Jun-Ichi Furuta
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Yasuhiro Fujisawa
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Saori Onizawa
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | | | | | | | | | | | - Tsunao Ohi
- Tokyo Medical University Ibaraki Medical Center, Ibaraki, Japan
| | | | | | - Naoko Okiyama
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Manabu Fujimoto
- Department of Dermatology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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20
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Sánchez-Tirado E, González-Cortés A, Yudasaka M, Iijima S, Langa F, Yáñez-Sedeño P, Pingarrón J. Electrochemical immunosensor for the determination of 8-isoprostane aging biomarker using carbon nanohorns-modified disposable electrodes. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2016.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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21
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Abstract
p-tert-Butylcalix[4]arenedicarboxylic acid, in which two distal hydroxy groups of p-tert-butylcalix[4]arene are replaced with carboxy groups, shows extraction selectivity toward Pd2+ ions by the formation of a 2 : 2 (M/L) complex.
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Affiliation(s)
- N. Morohashi
- Department of Biomolecular Engineering
- Graduate School of Engineering
- Tohoku University
- Aoba-ku
- Japan
| | - S. Iijima
- Department of Biomolecular Engineering
- Graduate School of Engineering
- Tohoku University
- Aoba-ku
- Japan
| | - K. Akasaka
- Department of Biomolecular Engineering
- Graduate School of Engineering
- Tohoku University
- Aoba-ku
- Japan
| | - T. Hattori
- Department of Biomolecular Engineering
- Graduate School of Engineering
- Tohoku University
- Aoba-ku
- Japan
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22
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Iijima S, Toyokawa S, Morita E, Quigley PA. ISQUA16-1327ESTIMATING THE EFFECTS OF FALL PREVENTION INTERVENTIONS BY ADJUSTING FOR THE RISK OF FALLING WITH A PROPENSITY SCORE. Int J Qual Health Care 2016. [DOI: 10.1093/intqhc/mzw104.12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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23
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Nishikawa K, Fujitani K, Inagaki H, Akamaru Y, Tokunaga S, Takagi M, Tamura S, Sugimoto N, Shigematsu T, Yoshikawa T, Ishiguro T, Nakamura M, Yamane T, Yamada M, Imano M, Iijima S, Nashimoto A, Morita S, Miyashita Y, Tsuburaya A, Sakamoto J, Tsujinaka T. PD-035 Efficacy and safety of second-line irinotecan based chemotherapy in early relapse patients with gastric cancer after adjuvant chemotherapy: exploratory subgroup analysis of TRICS trial. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw200.35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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24
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Iijima S, Matsumoto N, Ishibashi S, Sugiyama Y. PIXE analysis of trace elements included in oral lichen planus-affected mucosa. Int J Oral Maxillofac Surg 2015. [DOI: 10.1016/j.ijom.2015.08.137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Iijima S, Okazaki Y, Watanabe S, Tsuruta D, Tateishi C, Ishii N, Ohata C, Hashimoto T. Case of concurrence of anti-laminin gamma-1 pemphigoid and scabies. J Dermatol 2015; 42:1024-6. [PMID: 26126602 DOI: 10.1111/1346-8138.13020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Shigeruko Iijima
- Department of Dermatology, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Yukiko Okazaki
- Department of Dermatology, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Shinya Watanabe
- Department of Dermatology, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Daisuke Tsuruta
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Chiharu Tateishi
- Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan
| | - Norito Ishii
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Fukuoka, Japan
| | - Chika Ohata
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Fukuoka, Japan
| | - Takashi Hashimoto
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Fukuoka, Japan
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26
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Iijima S, Ito M, Makabe K, Murakami Y, Yokooji T, Matsuo H. Case of food-dependent exercise-induced anaphylaxis due to Japanese apricot and peach: Detection of causative antigens. J Dermatol 2015; 42:916-7. [PMID: 26047253 DOI: 10.1111/1346-8138.12951] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Shigeruko Iijima
- Department of Dermatology, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Michiko Ito
- Department of Dermatology, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Kaoru Makabe
- Department of Dermatology, Mito Saiseikai General Hospital, Ibaraki, Japan
| | - Yoshihiro Murakami
- Department of Pathophysiology and Therapeutics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoharu Yokooji
- Department of Pathophysiology and Therapeutics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hiroaki Matsuo
- Department of Pathophysiology and Therapeutics, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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27
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Kato K, Koike K, Kobayashi C, Iijima S, Hashimoto T, Tsuchida M. Bullous pemphigoid after allogeneic hematopoietic stem cell transplantation. Pediatr Int 2015; 57:480-3. [PMID: 26113316 DOI: 10.1111/ped.12561] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 09/16/2014] [Accepted: 09/30/2014] [Indexed: 01/28/2023]
Abstract
Bullous pemphigoid (BP) is an autoimmune skin disorder characterized by subepidermal blisters due to deposit of autoantibody against dermal basement membrane protein. It has been reported that BP can occur after allogeneic hematopoietic stem cell transplantation (HSCT). We describe a patient with BP having autoantibody against BP180 after unrelated-donor HSCT against T lymphoblastic leukemia. The patient was treated with steroid leading to complete resolution of BP, but T lymphoblastic leukemia progressed rapidly after steroid hormone treatment. Given that immunosuppressant may reduce graft-versus-tumor effect, immunomodulatory agents such as nicotinamide and tetracycline, erythromycin, and immunoglobulin may be appropriate as soon as typical blister lesions are seen after HSCT.
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Affiliation(s)
- Keisuke Kato
- Division of Pediatric Hematology and Oncology, Ibaraki Children's Hospital, Mito, Japan
| | - Kazutoshi Koike
- Division of Pediatric Hematology and Oncology, Ibaraki Children's Hospital, Mito, Japan
| | - Chie Kobayashi
- Division of Pediatric Hematology and Oncology, Ibaraki Children's Hospital, Mito, Japan
| | - Shigeruko Iijima
- Department of Dermatology, Mito Saiseikai General Hospital, Mito, Japan
| | - Takashi Hashimoto
- Department of Dermatology, Kurume University School of Medicine, Kurume, Japan.,Kurume University Institute of Cutaneous Cell Biology, Kurume, Japan
| | - Masahiro Tsuchida
- Division of Pediatric Hematology and Oncology, Ibaraki Children's Hospital, Mito, Japan
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28
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Iijima S, Okazaki Y, Watanabe S, Maruyama Y. Case of acrodermatitis continua of Hallopeau following psoriasis with atypical clinical presentation. J Dermatol 2014; 41:1006-8. [PMID: 25346303 DOI: 10.1111/1346-8138.12639] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 08/24/2014] [Indexed: 11/27/2022]
Abstract
We present a 63-year-old Japanese woman who had clinically unique symmetrical skin rashes on her lower face, inframammary area, back and extremities, with some pustules on the cheeks. Skin biopsy specimens showed typical findings of psoriasis, and Psoriasis Area and Severity Index score was 5.9. After the skin lesions were treated successfully with vitamin D3 ointment, pustules developed on the tips of the fingers and toes, with paronychial and subungual involvement. The pathology of the nail matrix was consistent with pustular psoriasis, and the patient was diagnosed with acrodermatitis continua of Hallopeau (ACH) following psoriasis with an unusual clinical presentation. ACH was well controlled with a low dose of cyclosporin. Our patient is a rare case chronologically affected by two diseases in the same category. We confirmed that ACH is a variant of pustular psoriasis, and believe that the patient could provide another clue to determining the entity of ACH.
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Affiliation(s)
- Shigeruko Iijima
- Department of Dermatology, Mito Saiseikai General Hospital, Ibaraki, Japan
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29
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Yoshimura K, Ishii N, Hamada T, Abe T, Ono F, Hashikawa K, Fukuda S, Ohyama B, Koga H, Sogame R, Teye K, Ochiai T, Nakajima H, Nakajima K, Iijima S, Kanzaki M, Kojima K, Nagatani T, Fujimoto W, Karashima T, Nakama T, Ohata C, Furumura M, Tsuruta D, Hashimoto T. Clinical and immunological profiles in 17 Japanese patients with drug‐induced pemphigus studied at Kurume University. Br J Dermatol 2014; 171:544-53. [DOI: 10.1111/bjd.12925] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/23/2013] [Indexed: 11/30/2022]
Affiliation(s)
- K. Yoshimura
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - N. Ishii
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - T. Hamada
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - T. Abe
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - F. Ono
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - K. Hashikawa
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - S. Fukuda
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - B. Ohyama
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - H. Koga
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - R. Sogame
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - K. Teye
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - T. Ochiai
- Department of Dermatology Surugadai Nihon University Hospital Tokyo Japan
| | - H. Nakajima
- Department of Dermatology Kochi University School of Medicine Kochi Japan
| | - K. Nakajima
- Department of Dermatology Kochi University School of Medicine Kochi Japan
| | - S. Iijima
- Department of Dermatology Mito Saiseikai General Hospital Mito Ibaraki Japan
| | - M. Kanzaki
- Department of Dermatology Mito Saiseikai General Hospital Mito Ibaraki Japan
| | - K. Kojima
- Department of Dermatology Kanazawa Medical University School of Medicine Ishikawa Japan
| | - T. Nagatani
- Department of Dermatology Hachioji Medical Center of Tokyo Medical University Tokyo Japan
| | - W. Fujimoto
- Department of Dermatology Kawasaki Medical School of Medicine Okayama Japan
| | - T. Karashima
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - T. Nakama
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - C. Ohata
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - M. Furumura
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
| | - D. Tsuruta
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
- Department of Dermatology Osaka City University Graduate School of Medicine Osaka Japan
| | - T. Hashimoto
- Department of Dermatology Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology 67 Asahimachi Kurume Fukuoka 830‐0011 Japan
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30
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Iijima S, Hamada T, Kanzaki M, Ohata C, Hashimoto T. Sibling cases of Hailey-Hailey disease showing atypical clinical features and unique disease course. JAMA Dermatol 2014; 150:97-9. [PMID: 24352221 DOI: 10.1001/jamadermatol.2013.5666] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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]
Affiliation(s)
- Shigeruko Iijima
- Department of Dermatology, Mito Saiseikai General Hospital, Mito, Ibaraki, Japan
| | - Takahiro Hamada
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
| | - Mirei Kanzaki
- Department of Dermatology, Mito Saiseikai General Hospital, Mito, Ibaraki, Japan
| | - Chika Ohata
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
| | - Takashi Hashimoto
- Department of Dermatology, Kurume University School of Medicine, and Kurume University Institute of Cutaneous Cell Biology, Kurume, Fukuoka, Japan
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31
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Hawelek L, Brodka A, Dore JC, Hannon AC, Iijima S, Yudasaka M, Ohba T, Kaneko K, Burian A. Structural Modeling of Dahlia-Type Single-Walled Carbon Nanohorn Aggregates by Molecular Dynamics. J Phys Chem A 2013; 117:9057-61. [DOI: 10.1021/jp408319t] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. Hawelek
- Institute of Non-Ferrous Metals, ulica Sowinskiego 5, 44-100 Gliwice, Poland
- A.
Chelkowski Institute of Physics, University of Silesia, ulica Uniwersytecka
4, 40-007 Katowice, Poland
| | - A. Brodka
- A.
Chelkowski Institute of Physics, University of Silesia, ulica Uniwersytecka
4, 40-007 Katowice, Poland
| | - John C. Dore
- School
of Physical Sciences, University of Kent, Canterbury CT2 7NH, United Kingdom
| | - Alex C. Hannon
- Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX, United Kingdom
| | - S. Iijima
- Department
of Physics, Meijo University, Nagoya 468-8522, Japan
| | - M. Yudasaka
- National Institute of Advanced Industrial Science and Technology, Central 5, Tsukuba 305-8565, Japan
| | - T. Ohba
- Graduate
School of Science, Chiba University, Yayoi 1-33, Inage, Chiba 263-8522, Japan
| | - K. Kaneko
- Exotic
Nanocarbon Research Center, Shinshu University, Wakasato 4-17-1, Nagano 380-8553, Japan
| | - A. Burian
- A.
Chelkowski Institute of Physics, University of Silesia, ulica Uniwersytecka
4, 40-007 Katowice, Poland
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Krungleviciute V, Ziegler CA, Banjara SR, Yudasaka M, Iijima S, Migone AD. Neon and CO2 adsorption on open carbon nanohorns. Langmuir 2013; 29:9388-9397. [PMID: 23802764 DOI: 10.1021/la401033u] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We present the results of a thermodynamics and kinetics study of the adsorption of neon and carbon dioxide on aggregates of chemically opened carbon nanohorns. Both the equilibrium adsorption characteristics, as well as the dependence of the kinetic behavior on sorbent loading, are different for these two adsorbates. For neon the adsorption isotherms display two steps before reaching the saturated vapor pressure, corresponding to adsorption on strong and on weak binding sites; the isosteric heat of adsorption is a decreasing function of sorbent loading (this quantity varies by about a factor of 2 on the range of loadings studied), and the speed of the adsorption kinetics increases with increasing loading. By contrast, for carbon dioxide there are no substeps in the adsorption isotherms; the isosteric heat is a nonmonotonic function of loading, the value of the isosteric heat never differs from the bulk heat of sublimation by more than 15%, and the kinetic behavior is opposite to that of neon, with equilibration times increasing for higher sorbent loadings. We explain the difference in the equilibrium properties observed for neon and carbon dioxide in terms of differences in the relative strengths of adsorbate-adsorbate to adsorbate-sorbent interaction for these species.
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Affiliation(s)
- Vaiva Krungleviciute
- Department of Physics, Southern Illinois University Carbondale, Carbondale, Illinois 62901-4401, USA
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33
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Sakamoto T, Tanaka Y, Watanabe T, Iijima S, Kani S, Sugiyama M, Murakami S, Matsuura K, Kusakabe A, Shinkai N, Sugauchi F, Mizokami M. Mechanism of the dependence of hepatitis B virus genotype G on co-infection with other genotypes for viral replication. J Viral Hepat 2013; 20:e27-36. [PMID: 23490386 DOI: 10.1111/jvh.12022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Accepted: 09/01/2012] [Indexed: 12/12/2022]
Abstract
Hepatitis B virus (HBV) is classified into several genotypes. Genotype G (HBV/G) is characterised by worldwide dispersion, low intragenotypic diversity and a peculiar sequence of the precore and core region (stop codon and 36-nucleotide insertion). As a rule, HBV/G is detected in co-infection with another genotype, most frequently HBV/A2. In a previous in vivo study, viral replication of HBV/G was significantly enhanced by co-infection with HBV/A2. However, the mechanism by which co-infection with HBV/A2 enhances HBV/G replication is not fully understood. In this study, we employed 1.24-fold HBV/A2 clones that selectively expressed each viral protein and revealed that the core protein expressing construct significantly enhanced the replication of HBV/G in Huh7 cells. The introduction of the HBV/A2 core promoter or core protein or both genomic regions into the HBV/G genome showed that both the core promoter and core protein are required for efficient HBV/G replication. The effect of genotype on the interaction between foreign core protein and HBV/G showed that HBV/A2 was the strongest enhancer of HBV/G replication. Furthermore, Western blot analysis of Dane particles isolated from cultures of Huh7 cells co-transfected by HBV/G and a cytomegalovirus (CMV) promoter-driven HBV/A2 core protein expression construct indicated that HBV/G employed HBV/A2 core protein during particle assembly. In conclusion, HBV/G could take advantage of core proteins from other genotypes during co-infection to replicate efficiently and to effectively package HBV DNA into virions.
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Affiliation(s)
- T Sakamoto
- Department of Virology & Liver unit, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Abstract
A commercially available cationic surfactant, dimethyl-dioctadecyl ammonium bromide (DDAB), was used for making lipid vesicles. DDAB easily dissolved in water at 60 °C and formed lipid vesicles at room temperature. The lipid vesicles showed very low cytotoxicity compared with other cationic surfactants. After the lipid vesicles were mixed with plasmid DNA solution, the solution was added to mammalian cells. The addition of a nonionic surfactant (Tween 80) to the cationic lipid vesicles at the weight ratio of 1:1 enhanced transfection efficiency. Adding more or less than the optimal amounts of DNA and lipid vesicles resulted in decreased transfection efficiency. With the optimal amounts of DNA (pCMVβ) and lipid vesicles, about 90-95% of CHO-K1 and BHK-21C13 cells transiently expressed β-galactosidase activity 24 h after transfection. By this procedure, stable transformants around 10(5) cells corresponding to 10% efficiency could be obtained by one batch transfection.
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Abstract
The effects of hepatocyte growth factor (HGF) and transforming growth factor-beta (TGF-beta) on two morphological states of hepatocytes in monolayer and spheroid cultures, were examined in terms of their mitogenic ability and albumin expression. In monolayer culture on collagen-coated dishes, the increase in DNA content in the presence of HGF was observed when HGF was added within two days of cell isolation, whereas no increase in DNA was observed when HGF was added four days of cell isolation. DNA content increased even after four days, when HGF was added intermittently. On the other hand, spheroid formation was promoted on Primaria(R) dishes in HGF-free culture, whereas it was inhibited following the addition of HGF. No increase in DNA content was observed in spheroid cultures even in the presence of HGF throughout the culture period. The albumin production ability rapidly decreased in monolayer culture, but the decline was attenuated following the addition of HGF during the course of culture. A high albumin production ability was maintained independent of HGF supplementation in spheroid culture. Both DNA content and albumin production decreased rapidly following the addition of TGF-beta1 in monolayer culture, and this decline was also attenuated following the addition of HGF to the medium.
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Iijima S, Moriyama T, Ichikawa H, Kobayashi Y, Shiomi K. [A case of an allergic reaction due to Anisakis simplex possibly after the ingestion of squid--successful detection of four A. simplex allergens, Ani s 1, Ani s 2, Ani s 12 and troponin C-like protein]. Arerugi 2012; 61:1104-1110. [PMID: 23089975] [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] [Received: 01/16/2012] [Accepted: 07/24/2012] [Indexed: 06/01/2023]
Abstract
A 62-year-old man ingested dressed salmon and its roe (ikura) and grilled mackerel and one hour later further ingested raw tuna and squid as an evening meal at a bar. Soon after the ingestion of raw seafood, he showed wheals, loss of consciousness and low blood pressure. Specific serum IgE to the nematode Anisakis simplex was positive but those to some seafoods were negative. Moreover, a skin prick test using the crude extract was positive for A. simplex but negative for the seafoods, which he ingested on the day of the above episode. When the A. simplex extract was analyzed by IgE-binding immunoblot analysis using the patient serum, two highly intense protein bands were recognized at 18 and 17 kDa, one intense band at 35 kDa and two weak bands at 28 and 26 kDa. ELISA with 11 natural or recombinant A. simplex allergens (Ani s 1-6, 8, 9, 11 and 12 and troponin C-like protein) showed that the patient serum strongly reacted to Ani s 1 and Ani s 12 and weakly to Ani s 2 and troponin C-like protein. Based on these results, he was diagnosed as IgE-mediated A. simplex allergy due to four allergens (Ani s 1, Ani s 2, Ani s 12 and troponin C-like protein), possibly infested in the raw squid which he had ingested just before manifestation of allergic reactions.
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Oka K, Nagayama R, Iijima S, Yonekawa N, Hirosawa K, Yatabe Y, Mori N. Epstein-Barr virus-associated lymphoproliferative disorder presenting with classical Hodgkin lymphoma and developing as peripheral T-cell lymphoma 9 years later: a case report of composite lymphoma. Pathol Int 2011; 61:752-5. [PMID: 22126384 DOI: 10.1111/j.1440-1827.2011.02723.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We describe a patient who was diagnosed with classical Hodgkin lymphoma (CHL) at 67-years-old and peripheral T-cell lymphoma, not otherwise specified (PTCL) at 76-years-old, and died 5 months later. Both tumors showed prominent epithelioid cell reaction admixed with neoplastic cells. Hodgkin and Reed-Sternberg cells in the swollen lymph node were positive for CD30 and EBV-encoded RNA (EBER). PTCL cells in the skin tumor were positive for cytoplasmic CD3ε, CD4 and EBER. A rearrangement band of the T-cell receptor gene was detected in the skin tumor. This case is the first documented EBV-associated composite lymphoma composed of CHL and PTCL. The patient may show the possibility that both EBV infection and/or immunodeficiency induce the development of CHL and PTCL.
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Affiliation(s)
- Kuniyuki Oka
- Department of Pathology, Mito Saiseikai General Hospital, Mito, Ibaraki, Japan.
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Liu Z, Suenaga K, Jin C, Iijima S. Atomic structure of graphitic materials visualized by using TEM and STEM. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311097017] [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: 11/11/2022] Open
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Abstract
We investigated the effect of cell adhesion on cellgrowth and productivity of recombinant protein inChinese hamster ovary (CHO) cells. Cells cultured innormal tissue culture dishes attached to the dishsurfaces and grew as a monolayer, while cells culturedin non-treated dishes proliferated in suspension assingle cells without adhering to the dish surfaces. On an agarose-coated dish surface, cell aggregatesformed without attaching to the dish. Growth rates inboth suspension cultures were slightly lower thanthose in monolayer culture. Cell cycle analysisindicated that the duration of the G(1) phase insuspension cultures was longer than that in monolayerculture, suggesting that attachment to the substratummainly affected the transition from the G(1) to theS phase. Consistent with this, CDK inhibitor p27,that inhibits the G(1)S transition, was induced inthe cells cultured in suspension.To assess the productivity of recombinant proteins,CHO cells were transfected with a plasmid containingmurine interferon gamma (mIFN-gamma) under thecontrol of the cytomegalovirus promoter. Insuspension culture, mIFN-gamma productivity wasslightly lower than that in the monolayer culture. When protein kinase C was activated by phorbol ester,mIFN-gamma production was enhanced in both themonolayer and suspension cultures. However, theproductivity in the suspension culture was lower thanthat in the adherent culture even in the presence ofhigh concentrations of phorbol ester. These resultssuggested that cell adhesion to the substratum affectsvarious features of CHO cells.
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Affiliation(s)
- K Nishijima
- Department of Biotechnology, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
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Fujii M, Kim YH, Satoh T, Hosaka H, Kim T, Tsuji A, Inokuchi M, Takagane A, Oh SC, Tanabe K, Okuno T, Chin K, Ura T, Lee JI, Kakudo Y, Yamaguchi K, Iijima S, Takeuchi M, Kim H, Nakajima T. Randomized phase III study of S-1 alone versus S-1 plus docetaxel (DOC) in the treatment for advanced gastric cancer (AGC): The START trial update. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.4016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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41
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Kawabata R, Imamura H, Kishimoto T, Kimura Y, Goto M, Iijima S, Fujitani K, Oshita M, Ueda S, Shimokawa T, Takiuchi H, Tsujinaka T, Furukawa H. Multicenter phase II study of combination therapy with paclitaxel, cisplatin, and S-1 for adavanced gastric cancer (OGSG0703). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e14654] [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: 11/20/2022] Open
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42
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Tanigaki K, Ichihsdhi T, Ebbesen TW, Kuroshima S, Iijima S, Hiura H, Takahashi H. Structures and Properties of C60 & C70 Thin Films Fabricated by Organic MBE. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-247-321] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTThe C60/C70 thin film crystals have been fabricated on the (001) surface of alkali halide substrates, KC1, KBr, and NaCl, and their structures have been studied. The crystal structure analyses by TEM show that the hexagonal closed packing (hep) with lattice parameters of a=10.0 Å and c=16.3 Å and the face-centered cubic (fee) with a=14.2 Å coexist in the C60 thin film crystals. The C70 thin film crystals show an expanded lattice constant of a=10.5 Å from the view perpendicular to the stacking plane. The ratio of hep to fee is dependent on the kind of the substrates and on the substrate temperatures during the crystal growth. The observed reversible change in the Raman spectrum of the C60 thin films implies a rotational molecular motion in the thin film crystals.
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Itoh T, Miyake K, Yamaguchi T, Tsuge M, Kaneoka H, Iijima S. Constitutive expression of the brg1 gene requires GC-boxes near to the transcriptional start site. J Biochem 2010; 149:301-9. [DOI: 10.1093/jb/mvq145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kishimoto T, Imamura H, Uedou F, Fujitani K, Iijima S, Takiuchi H, Imano M, Shimokawa T, Kurokawa Y, Furukawa H. Randomized phase II trial of S-1 plus irinotecan versus S-1 plus paclitaxel as first-line treatment for advanced gastric cancer (OGSG0402): Final report. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.4015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Yoshida M, Sato T, Takiuchi H, Gotoh M, Iijima S, Nakae S, Shimokawa T, Kurokawa Y, Hotta A, Furukawa H. 6552 Phase II study of weekly paclitaxel as thirrd line chemotherapy for advanced or recurrent gastric cancer (Osaka Gastrointestinal Cancer Chemotherapy Study Group: OGSG0602). EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71274-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Gotoh M, Imamura H, Takiuchi H, Kimura Y, Morimoto T, Imano M, Iijima S, Matsuoka M, Maruyama K, Hurukawa H. 6560 Phase II trial of S-1 for elderly patients (pts) over 75 years with advanced gastric cancer as first-line treatment (OGSG0404). EJC Suppl 2009. [DOI: 10.1016/s1359-6349(09)71281-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Fujitani K, Tamura S, Kimura Y, Tsuji T, Matsuyama J, Iijima S, Imamura H, Kurokawa Y, Tsujinaka T, Furukawa H. Phase II feasibility study of adjuvant S-1 plus docetaxel for stage III gastric cancer patients after curative D2 gastrectomy (OGSG 0604). J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e15567] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e15567 Background: Although an adjuvant chemotherapy with S-1 has become the standard treatment for stage II-III gastric cancer (GC) patients (pts) after curative D2 gastrectomy in Japan, the survival benefit for stage III pts obtained by S-1 is considered to be modest. S-1 plus docetaxel has shown a good response rate of 56% with prolonged median overall survival (OS) of 14.3 months in pts with advanced GC. This phase II study evaluated the feasibility and safety of adjuvant S-1 plus docetaxel for stage III GC pts after R0 resection. Methods: Patients with curatively resected pathological stage III GC receiving D2 dissection, age 20–80 years, performance status < 1, no prior adjuvant treatment, adequate organ function, and informed consent were given S-1 (80 mg/m2/day) orally for consecutive 2 weeks plus docetaxel (40 mg/m2) intravenously on day 1, repeated every 3 weeks. The treatment was started within 45 days after gastrectomy, and repeated for 4 cycles, followed by S-1 monotherapy until 1 year after surgery. Study endpoints included feasibility of the 4 cycles of S-1 plus docetaxel as primary, and safety, progression free survival (PFS), and OS as secondary. Sample size was set to be 50, which was determined to reject the feasibility of 50% under the expectation of 75% with power of 90% and two-sided α of 5%. Results: Fifty-three pts, 42 males and 11 females with a median age of 65 years, were enrolled between 5/2007 and 8/2008. Pathological stages included IIIA in 36 pts and IIIB in 17 pts. Planned 4 cycles of treatment were delivered to 41 out of 53 pts, with the feasibility of 77.4% (95% CI 63.8–87.7%, P<0.001). Reasons for discontinuation were recurrent cancer in 1 pt, adverse events in 10, and miscellaneous in 1, respectively. Grade 4 neutropenia was observed in 28% of pts with grade 3 febrile neutropenia in 9%. Non-hematological toxicities of grade 3 or more involved fatigue in 6%, anorexia in 9%, and nausea in 6%. No treatment-related deaths occurred. Conclusions: Adjuvant S-1 plus docetaxel was well-tolerated and showed good compliance. Although follow-up is ongoing on survival, this regimen could be a candidate of future phase III trial seeking for the optimal adjuvant chemotherapy for stage III GC pts after curative D2 gastrectomy. No significant financial relationships to disclose.
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Affiliation(s)
- K. Fujitani
- National Osaka Medical Center, Osaka, Japan; Osaka GI Cancer Chemotherapy Study Group, Osaka, Japan
| | - S. Tamura
- National Osaka Medical Center, Osaka, Japan; Osaka GI Cancer Chemotherapy Study Group, Osaka, Japan
| | - Y. Kimura
- National Osaka Medical Center, Osaka, Japan; Osaka GI Cancer Chemotherapy Study Group, Osaka, Japan
| | - T. Tsuji
- National Osaka Medical Center, Osaka, Japan; Osaka GI Cancer Chemotherapy Study Group, Osaka, Japan
| | - J. Matsuyama
- National Osaka Medical Center, Osaka, Japan; Osaka GI Cancer Chemotherapy Study Group, Osaka, Japan
| | - S. Iijima
- National Osaka Medical Center, Osaka, Japan; Osaka GI Cancer Chemotherapy Study Group, Osaka, Japan
| | - H. Imamura
- National Osaka Medical Center, Osaka, Japan; Osaka GI Cancer Chemotherapy Study Group, Osaka, Japan
| | - Y. Kurokawa
- National Osaka Medical Center, Osaka, Japan; Osaka GI Cancer Chemotherapy Study Group, Osaka, Japan
| | - T. Tsujinaka
- National Osaka Medical Center, Osaka, Japan; Osaka GI Cancer Chemotherapy Study Group, Osaka, Japan
| | - H. Furukawa
- National Osaka Medical Center, Osaka, Japan; Osaka GI Cancer Chemotherapy Study Group, Osaka, Japan
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Oka K, Nagayama R, Yatabe Y, Iijima S, Mori N. Angioimmunoblastic T-cell lymphoma with autoimmune thrombocytopenia: a report of two cases. Pathol Res Pract 2009; 206:270-5. [PMID: 19442454 DOI: 10.1016/j.prp.2009.04.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/11/2008] [Revised: 04/03/2009] [Accepted: 04/07/2009] [Indexed: 11/26/2022]
Abstract
We report two patients, a 68-year-old man (Case 1) and a 66-year-old man (Case 2), with polyclonal gammopathy, lymphadenopathy, thrombocytopenia, and high platelet-associated IgG (PAIgG) level. We initially diagnosed them as having angioimmunoblastic lymphadenopathy with dysproteinemia (AILD). From confirmation of clear cells by careful observation and detection of rearrangement bands of T cell receptors by Southern blot hybridization analysis, we finally concluded that their diagnoses were compatible with angioimmunoblastic T-cell lymphoma (AILT). AILT with autoimmune thrombocytopenia (AIT) is very rare, and all the reported cases were Japanese ones.
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Affiliation(s)
- Kuniyuki Oka
- Pathology, Mito Saiseikai General Hospital, Mito, Ibaraki 311-4198, Japan.
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Mizuarai S, Nishijima K, Iijima S. Amplification of competitive telomere sequence in living animal cells induces chromatin instability. Cytotechnology 2008; 31:195-203. [PMID: 19003141 DOI: 10.1023/a:1008088609398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
We have reported the establishment of new episomal-type expression vector the copy number of which can be readily regulated by a temperature shift. In this study, we attempt to apply this vector for the functional analysis of the noncoding regions of DNA. A plasmid containing a 0.45 kb-telomere repeat sequence was constructed and transfected into simian CV-1 cells, leading to successful establishment of cell lines in which episomal telomere sequence could be amplified by temperature shift. When the episomal telomere sequence was amplified, the cells stopped proliferating at the G(2)/M phase of the cell cycle and exhibited a large size with flattened morphology and several small nucleus-like particles. These cells expressed Cdk inhibitor p21 and beta-galactosidase, which are expressed in some senescent cells. Microscopic analysis revealed frequent end-to-end attachments of chromosomes, which resulted in a variety of aberrant chromosome configurations. None of these characteristics was observed in nontransfected and control plasmid-transfected CV-1 cells at any cultivation temperature. These results indicate the usefulness of our vector system in analyzing telomeric DNA.
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Matsumoto N, Sato T, Towatari M, Kojima M, Iijima S. A problem in the crystal structure of a two-step spin crossover complex. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308086820] [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: 11/10/2022] Open
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