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Hidaka R, Masuda Y, Ogawa K, Tanaka T, Kanazawa M, Suzuki K, Stading M, Iijima K, Matsuo K. Impact of the Comprehensive Awareness Modification of Mouth, Chewing and Meal (CAMCAM) Program on the Attitude and Behavior Towards Oral Health and Eating Habits as Well as the Condition of Oral Frailty: A Pilot Study. J Nutr Health Aging 2023; 27:340-347. [PMID: 37248757 DOI: 10.1007/s12603-023-1913-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 03/29/2023] [Indexed: 05/31/2023]
Abstract
OBJECTIVES Preserving sufficient oral function and maintaining aadequate nutrition are essential for preventing physical frailty and the following long-term care. We recently developed the 6-month Comprehensive Awareness Modification of Mouth, Chewing And Meal (CAMCAM) program, in which participants gather monthly to learn about oral health and nutrition while eating a textured lunch together. This study examined whether the CAMCAM program could improve attitude and behavior towards oral health, mastication, and diet as well as ameliorate oral frailty in community-dwelling older adults. DESIGN Single-arm pre-post comparison study. SETTING AND PARTICIPANTS A total of 271 community-dwelling adults (72.3 ± 5.7 years of age; 159 women [58.7%]) in 4 Japanese municipalities were recruited, of which 249 participants (92%) were assessed at the final evaluation. INTERVENTION Participants gathered once a month at community centers to learn about oral health and nutrition while eating a "munchy" textured lunch containing proper nutrition. MEASUREMENTS Oral frailty, frailty, and eating behavior were evaluated with the Oral Frailty Index-8 (OFI-8), Kihon checklist (KCL), and CAMCAM checklist, respectively. Participants were divided into Oral frailty (OF) and Robust groups according to OFI-8 scores. The differences in KCL and CAMCAM checklist results between the OF and Robust groups were statistically tested along with changes in scores after the program. RESULTS KCL and CAMCAM checklist scores were significantly lower in the OF group at the initial assessment. OFI-8 and KCL findings were significantly improved in the OF group after completing the program (all P <0.05). Regarding the CAMCAM checklist, awareness of chewing improved significantly in the Robust group (P=0.009), with a similar tendency in the OF group (P=0.080). CONCLUSION The findings of this pilot study suggest that the CAMCAM program may improve both oral and systemic frailty in addition to attitudes towards chewing, oral health, and meals, especially in individuals with oral frailty. The CAMCAM program merits expansion as a community-based frailty prevention program.
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Affiliation(s)
- R Hidaka
- Koichiro Matsuo, Department of Oral Health Sciences for Community Welfare, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo, Tokyo 113-8549, Japan, Phone: +81-3-5803-4545, E-mail:
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Di Palma A, Adamo P, Dohi T, Fujiwara K, Hagiwara H, Kitamura A, Sakoda A, Sato K, Iijima K. Testing mosses exposed in bags as biointerceptors of airborne radiocaesium after the Fukushima Dai-ichi Nuclear Power Station accident. Chemosphere 2022; 308:136179. [PMID: 36055590 DOI: 10.1016/j.chemosphere.2022.136179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 08/18/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
Eight years after the Fukushima nuclear accident, mosses exposed in bags were used to investigate their ability to accumulate radiocaesium and therefore to act as biointerceptors of 134Cs and 137Cs in the evacuated area of the Fukushima territory. Bags were filled with 3 widely studied moss species (Sphagnum palustre, Hypnum cupressiforme, and Hypnum plumaeforme) and exposed for 3, 6 or 9 weeks at 5 former residential sites within the Fukushima area and, for comparison, at three background sites located 700 km away. The radiocaesium activity concentrations found in moss bags were evaluated as function of exposure time, site conditions and moss species. In the Fukushima area, the moss bags accumulated 137Cs at all exposure sites and in all exposure periods, with S. palustre having the highest 137Cs accumulation ability. The 137Cs activity concentrations (from 28 to 4700 Bq kg-1) measured in moss bags increased with the exposure time and were consistent with the decontamination status of each exposure site, highlighting the big potential of moss bags to discriminate among exposure sites. Time dependency of 137Cs activity concentrations measured in mosses allowed the calculation of location-specific and species-specific factors, which can be used to predict radiocaesium accumulation trends in future biomonitoring surveys performed in the same area with the same experimental design. Autoradiography and electron microscopy analyses of the moss surfaces revealed a prevalence of soil-derived particulate form of radiocaesium, suggesting the use of moss bags as warning sensors of resuspended particles potentially harmful for local residents.
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Affiliation(s)
- A Di Palma
- Department of Mathematics and Physics, University of Campania Luigi Vanvitelli, Caserta, Italy; Fukushima Environmental Evaluation Research Division, Japan Atomic Energy Agency (JAEA), Japan.
| | - P Adamo
- Department of Agricultural Sciences, University of Naples Federico II, Portici, Italy
| | - T Dohi
- Fukushima Environmental Evaluation Research Division, Japan Atomic Energy Agency (JAEA), Japan
| | - K Fujiwara
- Fukushima Environmental Evaluation Research Division, Japan Atomic Energy Agency (JAEA), Japan
| | - H Hagiwara
- Fukushima Environmental Evaluation Research Division, Japan Atomic Energy Agency (JAEA), Japan
| | - A Kitamura
- Fukushima Environmental Evaluation Research Division, Japan Atomic Energy Agency (JAEA), Japan
| | - A Sakoda
- Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency (JAEA), Japan
| | - K Sato
- Ningyo-toge Environmental Engineering Center, Japan Atomic Energy Agency (JAEA), Japan
| | - K Iijima
- Fukushima Environmental Evaluation Research Division, Japan Atomic Energy Agency (JAEA), Japan
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Ishimaru N, Suzuki S, Shimokawa T, Iijima K, Kanzawa Y, Nakajima T, Kinami S. Kikyo-to for Acute Upper Respiratory Tract Infection-Associated Sore Throat Pain: A Multicenter Randomized Controlled Trial. J Integr Complement Med 2022; 28:768-774. [PMID: 35648044 DOI: 10.1089/jicm.2021.0433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objectives: Kikyo-to (Kt), a herbal medicine composed of glycyrrhiza root (Chinese licorice) and Platycodon root extracts (Chinese bellflower), is commonly used in Japan for relief of throat symptoms related to acute upper respiratory tract infection (URTI). Its effectiveness on URTI-associated sore throat pain over 30 min is examined here in comparison with a placebo. Design: Randomized double-blinded multicenter trial. Settings/Location: Two local Japanese medical centers with primary care. Subjects: Patients aged 20-65 years with URTI-related sore throat. Interventions: Patients were randomized to receive either 2500 mg of Kt, or 2500 mg of placebo (lactose). Randomization was stratified by age (< 45 vs. ≥ 45 years) and baseline sore throat score according to visual analogue scale (VAS) (< 50 vs. ≥ 50). Outcome measures: Primary outcome was change to sore throat score according to VAS 30 min after administration of Kt. Perceived impact of the sore throat on daily life at 30 mins after administration was another outcome. Outcomes are analyzed in the intention-to-treat population. Results: Among 70 participants, (Kt group: 36; placebo group: 34), each group contained 34 patients for analysis (n = 68, total). Difference between the groups in the mean change of sore throat score according to VAS at 30 min was without statistical significance (Kt 15.3, placebo 17.2; p = 0.66). Patients reporting that their sore throat had a moderate or greater impact on daily life were also similar in proportion between the groups (Kt 61.8% vs. placebo 55.9%; p = 0.80). Side effects were not reported. Conclusions: Kt did not relieve acute URTI-associated sore throats significantly more than a placebo. (UMIN trial ID: UMIN000035591).
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Affiliation(s)
- Naoto Ishimaru
- Department of General Internal Medicine, Akashi Medical Center, Hyogo, Japan
| | - Satoshi Suzuki
- Department of General Medicine, Tone Chuo Hospital, Numata, Japan
| | - Toshio Shimokawa
- Clinical Study Support Center, Wakayama Medical University, Wakayama, Japan
| | - Kenji Iijima
- Department of General Medicine, Tone Chuo Hospital, Numata, Japan
| | - Yohei Kanzawa
- Department of General Internal Medicine, Akashi Medical Center, Hyogo, Japan
| | - Takahiro Nakajima
- Department of General Internal Medicine, Akashi Medical Center, Hyogo, Japan
| | - Saori Kinami
- Department of General Internal Medicine, Akashi Medical Center, Hyogo, Japan
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Ikeda M, Yamaguchi S, Murakami M, Takaoka S, Sakaguchi Y, Yasui S, Iijima K, Nanya K, Onodera H, Amano T. OP0008 A NOVEL SITE-SPECIFIC PEGYLATED IL-2 WITH POTENT AND TREG-SELECTIVE ACTIVITY IN VIVO. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundDecreased regulatory T cells (Tregs) and Treg dysfunction are hallmarks of a various autoimmune and inflammatory diseases. While low-dose IL-2 therapy induces Treg expansion in vivo and has clinical benefits in some diseases (e.g., SLE and chronic graft-versus-host disease [GvHD]), there are many concerns about adverse events due to low Treg-selectivity. Furthermore, frequent dosing is needed due to the short half-life.ObjectivesWe discovered a novel site-specific PEGylated IL-2 variant, KKC80, with high Treg selectivity and a long half-life in vivo, which overcomes the issues of low-dose IL-2 therapy.MethodsBased on the co-crystal structure of wild-type IL-2 and its heterotrimeric receptor (PBD ID: 2ERJ), amino acid residues that were to be PEGylation sites were substituted with oAzZLys, an azide-containing lysine derivative. The PEG molecule was site-specifically attached to oAzZLys-incorporated IL-2 by copper-free click chemistry. The binding property to the IL-2 receptors were measured by surface plasmon resonance (SPR). In vitro, Treg selectivity was evaluated by the IL-2-dependent proliferation activity of Tregs and NK cells from human peripheral blood mononuclear cells (PBMCs). In vivo pharmacological activity after the single subcutaneous administration in cynomolgus monkeys was measured by changes in Treg count and Treg activation status in peripheral blood by flow cytometry. Pharmacokinetic parameters were calculated according to serum PEGylated IL-2 concentration. Efficacy in mouse xenogeneic GvHD model using human PBMC-transplanted NOG mice and in monkey DTH model were evaluated.ResultsA novel PEGylated IL-2, KKC80 (human IL-2 desA1/C125S /I129oAzZLys_W-shaped 80 kDa PEG) was discovered by optimizing the PEGylation site and PEG structure based on Treg selectivity and PK. SPR analysis showed that the binding affinity of KKC80 to CD25 was moderately decreased from wild-type IL-2, while binding affinity of KKC80 to IL-2Rβγ was remarkably decreased due to a significant change of the association rate constant. In vitro, wild-type IL-2 activated both Tregs and NK cells in the same concentration range, whereas KKC80 selectively activated Tregs. The Treg selectivity of KKC80 was comparable to another IL-2 mutein, Fc.IL-2 V91K. KKC80, but not Fc.IL-2 V91K, retained its biological activity, even in the presence of a large amount of recombinant soluble CD25, which mimicked the endogenous decoy receptor for IL-2. In monkeys, KKC80 selectively increased peripheral blood Tregs in a dose-dependent manner; the average maximum rate of increase of Treg count in animals treated with 0.01, 0.03, 0.1, 0.3 and 1 mg/kg was 1.5, 3.5, 28, 50 and 154-fold, respectively. In contrast to Tregs, the rates of increase of conventional CD4+ T, CD8+ T and NK cells were low. The Treg increase peaked on day 8 or 11 and lasted for over day 29. KKC80 showed a more sustained upregulation of functional Treg markers (e.g., Foxp3 and CD25) in comparison to Fc.IL-2 V91K. The half-life of KKC80 was calculated as 83.5 to 150 h. At high doses, inflammation-related adverse effects, including increased CRP (≥0.3 mg/kg) and deterioration of general conditions (1 mg/kg) were observed. In the mouse xenogenic GvHD model, KKC80 ameliorated GvHD symptoms and suppressed multiple tissue inflammation markers. Decreased soluble CD25 and IFN-γ were also confirmed, suggesting Treg-mediated anti-inflammatory effect by KKC80 administration were exerted in vivo. In the monkey DTH model, KKC80 suppressed skin inflammation and antibody production.ConclusionAmong next-generation IL-2 variants, KKC80 showed a best-in-class biological profile for Treg activation. A drastic and sustained increase of Tregs with high Treg-selectivity and anti-inflammatory effects were observed in vivo. These data suggest that in comparison to current IL-2 therapy, KKC80 provides superior therapeutic index and efficacy in patients with autoimmune and inflammatory diseases.Figure 1.Disclosure of InterestsMasahiro Ikeda Employee of: Kyowa Kirin Co., Ltd., Shinpei Yamaguchi Employee of: Kyowa Kirin Co., Ltd., Masumi Murakami Employee of: Kyowa Kirin Co., Ltd., Shigeki Takaoka Employee of: Kyowa Kirin Co., Ltd., Yasuko Sakaguchi Employee of: Kyowa Kirin Co., Ltd., Shunki Yasui Employee of: Kyowa Kirin Co., Ltd., Kousuke Iijima Employee of: Kyowa Kirin Co., Ltd., Kenichiro Nanya Employee of: Kyowa Kirin Co., Ltd., Hideyuki Onodera Employee of: Kyowa Kirin Co., Ltd., Toru Amano Employee of: Kyowa Kirin Co., Ltd.
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Son BK, Imoto T, Inoue T, Nishimura T, Tanaka T, Iijima K. Social Detachment Influenced Muscle Mass and Strength during the COVID-19 Pandemic in Japanese Community-Dwelling Older Women. J Frailty Aging 2022; 11:231-235. [PMID: 35441202 PMCID: PMC8795718 DOI: 10.14283/jfa.2022.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Social detachment due to coronavirus disease (COVID-19) has caused a decline in physical activity, leading to sarcopenia and frailty in older adults. This study aimed to compare muscle mass, strength, and function values in older women before and after the first wave of the COVID-19 pandemic (April-May 2020). Furthermore, changes in muscle measures across women who experienced different levels of impact on their social participation due to the COVID-19 pandemic were examined. Muscle mass (total, trunk, and appendicular muscle), grip strength, oral motor skills, social interactions (social network and participation), and social support were assessed in 46 Japanese community-dwelling older women (mean, 77.5 y; range 66-93 y) before and after the first wave of the COVID-19 pandemic. Trunk muscle mass significantly decreased after the first wave of the pandemic. When comparing changed values between the enhanced/maintained and reduced group during the pandemic, significant group difference was observed in trunk muscular mass, grip strength, and oral motor skills. Intriguingly, those who enhanced social participation had a positive change of grip strength values, showing that social participation might influence muscle function during the COVID-19 pandemic.
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Affiliation(s)
- B K Son
- Son BK, PhD., Institute of Gerontology, Department of Geriatric Medicine, Graduate School of Medicine, Institute for Future Initiatives, The University of Tokyo, Tokyo, Japan, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan. Phone: 81 3 5800 6534, Fax: 81 3 5800 8837, E-mail:
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Tsuji Y, Takayama T, Sawai K, Shindo S, Moku R, Iijima K, Honma R. 1407P Patterns of aggravation in gastric cancer patients with peritoneal metastases who underwent paclitaxel-based intraperitoneal therapy. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.1516] [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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Makizako H, Nishita Y, Jeong S, Otsuka R, Shimada H, Iijima K, Obuchi S, Kim H, Kitamura A, Ohara Y, Awata S, Yoshimura N, Yamada M, Toba K, Suzuki T. TRENDS IN THE PREVALENCE OF FRAILTY IN JAPAN: A META-ANALYSIS FROM THE ILSA-J. J Frailty Aging 2021; 10:211-218. [PMID: 34105703 DOI: 10.14283/jfa.2020.68] [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] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To examine whether age-specific prevalence of frailty in Japan changed between 2012 and 2017. DESIGN This study performed meta-analyses of data collected from 2012 to 2017 using the Integrated Longitudinal Studies on Aging in Japan (ILSA-J), a collection of representative Japanese cohort studies. SETTING The ILSA-J studies were conducted on community-living older adults. PARTICIPANTS ILSA-J studies were considered eligible for analysis if they assessed physical frailty status and presence of frailty in the sample. Seven studies were analyzed for 2012 (±1 year; n = 10312) and eight studies were analyzed for 2017 (±1 year; n = 7010). Five studies were analyzed for both 2012 and 2017. MEASUREMENTS The study assessed the prevalence of frailty and frailty status according to 5 criteria: slowness, weakness, low activity, exhaustion, and weight loss. RESULTS The overall prevalence of physical frailty was 7.0% in 2012 and 5.3% in 2017. The prevalence of frailty, especially in people 70 years and older, tended to decrease in 2017 compared to 2012. Slight decreases were found in the prevalence of frailty subitems including weight loss, slowness, exhaustion, and low activity between 2012 and 2017, but change in the prevalence of weakness was weaker than other components. CONCLUSIONS The prevalence of physical frailty decreased from 2012 to 2017. There are age- and gender-related variations in the decrease of each component of frailty.
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Affiliation(s)
- H Makizako
- Hyuma Makizako, Department of Physical Therapy, Faculty of Medicine, School of Health Sciences, Kagoshima University, Kagoshima, Japan,
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Kikuchi H, Fukuda S, Koike T, Shimodaira Y, Watanabe K, Saito M, Nakagawa K, Hatta W, Masamune A, Iijima K. Association of residual gastric acid secretion with persistent symptoms in gastroesophageal reflux disease patients receiving standard-dose proton pump inhibitor therapy. Esophagus 2021; 18:380-387. [PMID: 32737802 DOI: 10.1007/s10388-020-00765-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Accepted: 07/24/2020] [Indexed: 02/03/2023]
Abstract
BACKGROUND Although a third of gastroesophageal reflux disease (GERD) patients are refractory to proton pump inhibitor (PPI) therapy, the underlying mechanism of the refractoriness remains unclear. We compared the level of gastric acid suppression during PPI treatment between responders and non-responders by directly measuring gastric acid secretion in GERD patients taking PPIs. METHODS Seventy-five consecutive patients receiving standard-dose PPI therapy for GERD were prospectively recruited, irrespective of persistent GERD symptoms. They were asked about their GERD symptoms using a validated questionnaire, and simultaneously underwent both a routine endoscopic examination and a gastric acid secretory testing using an endoscopic gastrin test. Associations between residual gastric acid secretion during PPI treatment and persistent GERD symptoms were analyzed by a logistic regression analysis. RESULTS Overall, 26 of 75 (34.7%) patients were judged to be positive for persistent GERD symptoms. The patients with and without persistent symptoms showed similar gastric acid secretion levels (1.3 [1.3] mEq/10 min vs. 1.4 [2.0] mEq/10 min). Sufficient gastric acid suppression, defined as < 0.6, was not significantly associated with persistent GERD symptoms (odds ratio 1.1, 95% confidence interval 0.40-3.5). CONCLUSIONS This study provided solid evidence to support that the gastric acid suppression level during PPI treatment does not differ between patients with and without persistent GERD symptoms. The insignificant role of residual gastric acid in the persistent GERD symptoms suggests that the use of medications other than those that enhance gastric acid inhibitory effects would be an essential approach for the management of PPI-refractory GERD.
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Affiliation(s)
- H Kikuchi
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Sendai, 980-8574, Japan
| | - S Fukuda
- Department of Gastroenterology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - T Koike
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Sendai, 980-8574, Japan
| | - Y Shimodaira
- Department of Gastroenterology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - K Watanabe
- Department of Gastroenterology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan
| | - M Saito
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Sendai, 980-8574, Japan
| | - K Nakagawa
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Sendai, 980-8574, Japan
| | - W Hatta
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Sendai, 980-8574, Japan
| | - A Masamune
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Sendai, 980-8574, Japan
| | - K Iijima
- Department of Gastroenterology, Akita University Graduate School of Medicine, 1-1-1 Hondo, Akita, Akita, 010-8543, Japan.
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Fujisaki-Sueda-Sakai M, Takahashi K, Yoshizawa Y, Iijima K. Frailty Checkup Supporters' Intentions to Participate in Human-Resource Development and Training Activities. J Frailty Aging 2020; 9:238-243. [PMID: 32996561 DOI: 10.14283/jfa.2020.6] [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] [Indexed: 11/11/2022]
Abstract
BACKGROUND Frailty prevention is one of social prescriptions for an aging society. That requires community level intervention. OBJECTIVES This study examined frailty checkup supporters' (FCSs') intentions to engage in human-resource development and training activities (i.e., leadership activities) and related factors. DESIGN Cross-sectional study. SETTING Three municipalities in suburban area, Eastern Japan. PARTICIPANTS Forty-five of 59 FCSs completed anonymous self-administered questionnaires. MEASUREMENTS Questionnaire sought information regarding their sociodemographic data, their perceptions and experiences of FCS activities, and their intentions to participate in human-resource development and training activities. Participants were divided into a high intention (HI) and low intention group (LI). The two groups were compared using quantitative and qualitative data. RESULTS Eleven FCSs reported intending to engage in leader-related activities. Factors associated with FCSs' intentions were finding FCS activities rewarding and the willingness to continue performing FCS activities. The participants who changed their daily activities (p = .041) and perceptions regarding contributing to the community (p = .018) showed significantly higher intention than LI participants. Free description about the changes in perceptions and lifestyles as a consequence of participating in FCS activities were analyzed qualitatively. FCSs who changed their daily activities and perspectives about contributing to the community described positive changes in both the groups. Meanwhile, FCSs who did not change their daily activities and perspectives about contributing to the community described their reason only in the LI group. CONCLUSIONS The results might encourage FCSs to participate in training and guidance activities, as they have positive experiences and receive recognition obtained through participation in such activities.
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Affiliation(s)
- M Fujisaki-Sueda-Sakai
- Mahiro Fujisaki-Sueda-Sakai, Institute of Gerontology, The University of Tokyo, Project Assistant Professor, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan, , Phone/Fax: +81-3-5841-1662
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Taniguchi-Ikeda M, Yamamoto T, Awano H, Iijima K, Toda T. REGISTRIES, CARE, QUALITY OF LIFE, MANAGEMENT OF NMD. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.339] [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: 10/23/2022]
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Suthuvoravut U, Takahashi K, Murayama H, Tanaka T, Akishita M, Iijima K. Association between Traditional Japanese Diet Washoku and Sarcopenia in Community-Dwelling Older Adults: Findings from the Kashiwa Study. J Nutr Health Aging 2020; 24:282-289. [PMID: 32115609 DOI: 10.1007/s12603-020-1318-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 01/17/2023]
Abstract
OBJECTIVES To identify the dietary patterns among community-dwelling Japanese older adults and to explore the association between these patterns and sarcopenia. DESIGN Cross-sectional study. SETTING Kashiwa city, Chiba prefecture, Japan. PARTICIPANTS Community-dwelling older adults (n = 1241) aged 65 years and over who were not eligible for long-term care. MEASUREMENTS Dietary intake was assessed using the brief self-administered diet history questionnaire (BDHQ). Dietary patterns were identified using both principal component analysis and the score on the Japanese diet comprising soybeans and soybean products, fish, vegetables, pickles, mushroom, seaweeds, and fruits. Sarcopenia was defined by the Asian Working Group for Sarcopenia (AWGS) criteria. A binary logistic regression analysis was performed with sarcopenia status as the dependent variable after adjusting for economic status, living alone status, BMI, energy intake, multimorbidity, and physical activity. RESULTS Participants' mean age was 74.6 years, and 52.1% were male. According to AWGS criteria, 5.1% had sarcopenia. Three dietary patterns were identified from the principal component analysis. Dietary pattern 1 (DP1), showed high loadings for fish, tofu, vegetables, and fruits which are similar to the side dishes in a typical Japanese diet. Dietary pattern 2 (DP2) had high factor loadings for fish, rice, and miso soup which are main dishes in a typical Japanese diet. Dietary pattern 3 (DP3) had a high factor loading for noodles. Men with the lowest tertile of DP1 score had a higher likelihood of being sarcopenic (Adjusted odds ratio (AOR) 3.67, 95% confidence interval (CI) 1.20-11.2). Women with the lowest tertile of DP2 score had a moderate likelihood of being sarcopenic (AOR 2.71, 95%CI 0.99-7.46). Low adherence to Japanese dietary pattern was associated with prevalence of sarcopenia in both genders. CONCLUSION Adherence to a dietary pattern high in foods characteristic of a Japanese diet including fish, soybean products, vegetables, and fruits was associated with low prevalence of sarcopenia in both genders.
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Affiliation(s)
- U Suthuvoravut
- Katsuya Iijima, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan, Tel: +81-3-5841-1662, Fax: +81-3-5841-1662, E-mail:
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Okuma K, Igaki H, Okamoto H, Nishioka S, Iijima K, Kashihara T, Takahashi K, Murakami N, Nakayama Y, Itami J. SP-008: Clinical experiences and Dosimetry of MR guided X-ray Therapy (MRXT). Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(20)30560-0] [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: 10/23/2022]
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Suthutvoravut U, Tanaka T, Takahashi K, Akishita M, Iijima K. Living with Family yet Eating Alone is Associated with Frailty in Community-Dwelling Older Adults: The Kashiwa Study. J Frailty Aging 2019; 8:198-204. [PMID: 31637406 DOI: 10.14283/jfa.2019.22] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVES Eating alone is related to depression, nutritional risk, and mortality. These effects are also influenced by living status. However, little is known about the relationship between eating alone despite living with family and frailty. This study explores the relationship of eating alone and living status with frailty in community-dwelling older adults. DESIGN Cross-sectional study. SETTING AND PARTICIPANTS Kashiwa city, Chiba prefecture, Japan; randomly selected community-dwelling older adults (aged 65 years and over). MEASUREMENTS Eating status was assessed by the question, "Do you eat meals with anyone, at least once a day: yes or no?" Frailty was defined by Kihon Checklist (KCL) score 8 or over. Domains of frailty were divided into instrumental activities of daily living (IADL), physical strength, nutrition, eating, socialization, memory, and mood, based on KCL categories. Binary logistic regression analysis was used, adjusting for age, years of education, chronic diseases, number of teeth and cognitive function. RESULTS Among the total of 1,914 participants, 49.8% were male, and the overall mean age was 72.9 ± 5.5 years. Of all participants, 56 (5.9%) of men and 112 (11.7%) of women were frail. Older adults who ate alone despite living with others were more likely to be frail (OR 2.49, 95%CI 1.1-5.5 for men and OR 2.16, 95%CI 1.0-4.5 for women). Of particular note, eating and living status were associated with lower physical strength and mood in men, whereas in women these statuses were associated with lower scores for IADL, socialization, memory, and mood. CONCLUSIONS Eating alone despite living with others was associated with high frailty in both genders; however, the pathways were different between genders. These results might help yield a simple, fundamental intervention approach to multifaceted frailty, reflecting gender and associated high-risk domains.
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Affiliation(s)
- U Suthutvoravut
- Katsuya Iijima, 8th Building 613, Department of Engineering, Hongo 7-3-1, Bunkyo-ku, Tokyo, Tel: 03-5841-1662, Fax: 03-5841-1662, E-mail:
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Yamamoto T, Awano H, Fukuoka K, Nagai M, Imanishi T, Matsuo M, Iijima K, Saegusa J. P.263Juvenile Duchenne muscular dystrophy patients with abnormal Q wave are at risk for early onset of cardiac dysfunction. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.377] [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: 12/01/2022]
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15
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Nagai M, Awano H, Yamamoto T, Bo R, Nishio H, Matsuo M, Iijima K. O.26The α-actinin-3 deficiency is related to early onset of dilated cardiomyopathy in Duchenne muscular dystrophy patients. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.309] [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: 11/28/2022]
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16
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Awano H, Nagai M, Shirakawa T, Osawa K, Lee T, Takeshima Y, Nishio H, Matsuo M, Iijima K. SMA BIOMARKERS. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.383] [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: 10/25/2022]
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17
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Miura K, Harita Y, Tsurumi H, Takahashi K, Igarashi T, Iijima K, Hattori M. SUN-329 Clinical manifestations and genetic analysis of primary distal renal tubular acidosis. Kidney Int Rep 2019. [DOI: 10.1016/j.ekir.2019.05.738] [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] Open
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18
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Kimura Y, Shioya A, Saito Y, Oitani Y, Shigemoto Y, Morimoto E, Suzuki F, Ikegaya N, Kimura Y, Iijima K, Takayama Y, Iwasaki M, Sasaki M, Sato N. Radiologic and Pathologic Features of the Transmantle Sign in Focal Cortical Dysplasia: The T1 Signal Is Useful for Differentiating Subtypes. AJNR Am J Neuroradiol 2019; 40:1060-1066. [PMID: 31097427 DOI: 10.3174/ajnr.a6067] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2019] [Accepted: 03/27/2019] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The transmantle sign is a characteristic MR imaging finding often seen in focal cortical dysplasia type IIb. The transmantle sign is typically hyperintense on T2WI and FLAIR and hypointense on T1WI. However, in some cases, it shows T1 high signal. We evaluated the imaging and pathologic findings to identify the causes of the T1 high signal in the transmantle sign. MATERIALS AND METHODS We retrospectively reviewed the preoperative imaging data of 141 consecutive patients with histologically proved focal cortical dysplasia. We selected 25 patients with focal cortical dysplasia with the transmantle sign and divided them into groups based on the pathologic focal cortical dysplasia subtype and T1 signal of the transmantle sign. We evaluated the clinical, radiologic, and pathologic findings, including the number of balloon cells and dysmorphic neurons and the severity of gliosis or calcifications and compared them among the groups. RESULTS Nine of the 25 patients had a T1-high-signal transmantle sign; the other 16 patients did not. All 9 patients with a T1-high-signal transmantle sign were diagnosed as type IIb (group A). Of the 16 patients with no T1-high-signal transmantle sign, 13 were diagnosed as having type IIb (group B), and the other 3 patients, as type IIa (group C). The number of balloon cells was significantly higher in group A than in the other groups, but there were no differences regarding dysmorphic neurons, the severity of gliosis, or calcifications. CONCLUSIONS Approximately 6% (9/141) of this patient series had a T1-high-signal transmantle sign, and all were type IIb. The signal may reflect a rich density of balloon cells. This finding could support the differentiation of subtypes, especially type IIb.
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Affiliation(s)
- Yukio Kimura
- From the Department of Radiology (Yukio K., Y. Shigemoto, E.M., F.S., N.S.), National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - A Shioya
- Departments of Pathology and Laboratory Medicine (A.S., Y. Saito)
- Department of Neurology (A.S.), Mito Kyodo General Hospital, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Y Saito
- Departments of Pathology and Laboratory Medicine (A.S., Y. Saito)
| | - Y Oitani
- Child Neurology (Y.O., M.S.)
- Department of Pediatrics (Y.O.), Tokyo Women's Medical University Medical Center East, Tokyo, Japan
| | - Y Shigemoto
- From the Department of Radiology (Yukio K., Y. Shigemoto, E.M., F.S., N.S.), National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - E Morimoto
- From the Department of Radiology (Yukio K., Y. Shigemoto, E.M., F.S., N.S.), National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - F Suzuki
- From the Department of Radiology (Yukio K., Y. Shigemoto, E.M., F.S., N.S.), National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - N Ikegaya
- Neurosurgery (N.I., Yuiko K., K.I., Y.T., M.I.), National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
- Department of Neurosurgery (N.I.), Yokohama City University, Yokohama, Kangawa, Japan
| | - Yuiko Kimura
- Neurosurgery (N.I., Yuiko K., K.I., Y.T., M.I.), National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - K Iijima
- Neurosurgery (N.I., Yuiko K., K.I., Y.T., M.I.), National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Y Takayama
- Neurosurgery (N.I., Yuiko K., K.I., Y.T., M.I.), National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - M Iwasaki
- Neurosurgery (N.I., Yuiko K., K.I., Y.T., M.I.), National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | | | - N Sato
- From the Department of Radiology (Yukio K., Y. Shigemoto, E.M., F.S., N.S.), National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
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Okuma K, Okamoto H, Iijima K, Nishioka F, Kashihara T, Shima S, Uematsu M, Igaki H, Nakayama Y, Itami J, Murakami N, Nakamura S. EP-1403 Retrospective evaluation of usefulness of MR-guided adaptive radiotherapy of gastric MALT lymphoma. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31823-7] [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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20
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Jinnouchi H, Tamiya N, Ueshima H, Kawada T, Ishizaki T, Yoshie S, Iijima K. DOES CARE BURDEN OF DEMENTIA VARY BY LOCOMOTIVE FUNCTION AMONG JAPANESE ELDERLY PEOPLE? Innov Aging 2018. [DOI: 10.1093/geroni/igy031.3447] [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: 11/13/2022] Open
Affiliation(s)
- H Jinnouchi
- . Department of Hygiene & Public Health, Nippon Medical School
| | - N Tamiya
- Department of Health Services Research, Faculty of Medicine, University of Tsukuba
| | - H Ueshima
- Doctoral Program in Human Care Science, Graduate School of Comprehensive Human Care Sciences, University of Tsukuba
| | - T Kawada
- . Department of Hygiene & Public Health, Nippon Medical School
| | - T Ishizaki
- Tokyo Metropolitan Institute of Gerontology
| | - S Yoshie
- Center for Home Care Medicine, Faculty of Medicine, The University of Tokyo
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21
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Nishimoto M, Tanaka T, Hirano H, Kikutani T, Watanabe Y, Ohara Y, Huruya H, Iijima K. HEALTH LITERACY AND ORAL HEALTH BEHAVIORS DECREASE THE RISK OF ORAL FRAILTY IN JAPANESE ELDERLY. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.2660] [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: 11/12/2022] Open
Affiliation(s)
- M Nishimoto
- Institute of Gerontology, The University of Tokyo, Japan
| | - T Tanaka
- Department of Geriatric Medicine, The University of Tokyo, Tokyo, Japan
| | - H Hirano
- Tokyo Metropolitan Institute of Gerontology, Japan
| | - T Kikutani
- Division of Clinical Oral Rehabilitation, Nippon Dental University Graduate School of Life Dentistry at Tokyo, Japan
| | - Y Watanabe
- Tokyo Metropolitan Institute of Gerontology, Japan
| | - Y Ohara
- Department of Oral Health Care Education, Tokyo Medical and Dental University, Tokyo, Japan
| | - H Huruya
- Division of Clinical Oral Rehabilitation, Nippon Dental University Graduate School of Life Dentistry at Tokyo, Japan
| | - K Iijima
- Institute of Gerontology, The University of Tokyo, Japan
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22
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Hasegawa Y, Otuki S, Watanabe H, Iijima K, Yagihara N, Sato A, Izumi D, Minamino T. P4846J point elevation in high precordial leads associated with risk of ventricular arrhythmias. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4846] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Y Hasegawa
- Niigata University Graduate School of Medical and Dental Sciences, Cardiology, Niigata, Japan
| | - S Otuki
- Niigata University Graduate School of Medical and Dental Sciences, Cardiology, Niigata, Japan
| | - H Watanabe
- Niigata University Graduate School of Medical and Dental Sciences, Cardiology, Niigata, Japan
| | - K Iijima
- Niigata University Graduate School of Medical and Dental Sciences, Cardiology, Niigata, Japan
| | - N Yagihara
- Niigata University Graduate School of Medical and Dental Sciences, Cardiology, Niigata, Japan
| | - A Sato
- Niigata University Graduate School of Medical and Dental Sciences, Cardiology, Niigata, Japan
| | - D Izumi
- Niigata University Graduate School of Medical and Dental Sciences, Cardiology, Niigata, Japan
| | - T Minamino
- Niigata University Graduate School of Medical and Dental Sciences, Cardiology, Niigata, Japan
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23
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Okamoto H, Nishioka S, Iijima K, Sakasai T, Miura Y, Wakita A, Nakamura S, Shibata Y, Abe Y, Igaki H, Itami J. EP-1766: Modelling of MR-guided radiotherapy system on Monte Carlo code GEANT4. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32075-9] [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: 10/14/2022]
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Abstract
In a previous communication, we reported a leaflet fracture in a Jellyfish valve that was incorporated into a blood pump, after a 312-day animal implant duration. Subsequent finite element analysis revealed that the fracture location was consistent with an area of maximum strain concentration. Therefore, the aim of this study was to improve the durability in the light of these findings. Based on the engineering analysis results, a new valve seat having a concentric ring of 0.5mm width, located at a radius of 7.0 mm, was designed and fabricated. Accelerated fatigue tests, conducted under the conditions recommended by ISO 5840, demonstrated that the durability of this new prototype was extended by a factor of 10, as compared to the original valve. Moreover, further finite element analysis indicated that the maximum equivalent elastic strain of the proposed new valve was reduced by 52.3% as compared to the original valve. Accordingly, it has been confirmed that the modified Jellyfish valve is suitable for use in long-term artificial hearts.
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Affiliation(s)
- K. Iwasaki
- Department of Mechanical Engineering, Waseda University, Tokyo - Japan
| | - M. Umezu
- Department of Mechanical Engineering, Waseda University, Tokyo - Japan
| | - K. Imachi
- Department of Biomedical Engineering, Graduate School of Medicine, The University of Tokyo, Tokyo - Japan
| | - K. Iijima
- Department of Mechanical Engineering, Waseda University, Tokyo - Japan
| | - T. Fujimoto
- Department of Mechanical Engineering, Shibaura Institute of Technology, Tokyo - Japan
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25
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Taniguchi-Ikeda M, Morisada N, Inagaki H, Ouchi Y, Takami Y, Tachikawa M, Satake W, Kobayashi K, Tsuneishi S, Takada S, Yamaguchi H, Nagase H, Nozu K, Okamoto N, Nishio H, Toda T, Morioka I, Wada H, Kurahashi H, Iijima K. Two patients with PNKP mutations presenting with microcephaly, seizure, and oculomotor apraxia. Clin Genet 2017; 93:931-933. [PMID: 29243230 DOI: 10.1111/cge.13106] [Citation(s) in RCA: 7] [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] [Received: 05/15/2017] [Revised: 07/22/2017] [Accepted: 07/24/2017] [Indexed: 11/28/2022]
Affiliation(s)
- M Taniguchi-Ikeda
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan.,Division of Genetic Counseling, Kobe University Hospital, Kobe, Japan
| | - N Morisada
- Department of Clinical Genetics, Hyogo Prefectural Kobe Children's Hospital Perinatal Center, Kobe, Japan
| | - H Inagaki
- Division of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
| | - Y Ouchi
- Division of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
| | - Y Takami
- Department of Pediatrics, Himeji Red Cross Hospital, Himeji, Japan
| | - M Tachikawa
- Division of Neurology/Molecular Brain Science, Kobe University Graduate School of Medicine, Kobe, Japan
| | - W Satake
- Division of Neurology/Molecular Brain Science, Kobe University Graduate School of Medicine, Kobe, Japan
| | - K Kobayashi
- Division of Neurology/Molecular Brain Science, Kobe University Graduate School of Medicine, Kobe, Japan
| | - S Tsuneishi
- Medical and Welfare Center Kizuna, Kasai, Japan
| | - S Takada
- Kobe University Graduate School of Health Sciences, Kobe, Japan
| | - H Yamaguchi
- Department of Neonatology, Hyogo Prefectural Kobe Children's Hospital Perinatal Center, Kobe, Japan
| | - H Nagase
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - K Nozu
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - N Okamoto
- Department of Medical Genetics, Osaka Women's and Children's Hospital, Osaka, Japan
| | - H Nishio
- Department of Community Medicine and Social Healthcare Science, Kobe University Graduate School of Medicine, Kobe, Japan
| | - T Toda
- Division of Genetic Counseling, Kobe University Hospital, Kobe, Japan.,Division of Neurology/Molecular Brain Science, Kobe University Graduate School of Medicine, Kobe, Japan
| | - I Morioka
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
| | - H Wada
- Medical and Welfare Center Sakura, Sanda, Japan
| | - H Kurahashi
- Division of Molecular Genetics, Institute for Comprehensive Medical Science, Fujita Health University, Toyoake, Japan
| | - K Iijima
- Department of Pediatrics, Kobe University Graduate School of Medicine, Kobe, Japan
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26
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Arakawa Y, Sugahara Y, Matsushita M, Moriguchi Y, Shimohiro H, Nakagawa M, Iijima K. Factor XII Osaka: Abnormal factor XII with partially defective prekallikrein cleavage activity. Thromb Haemost 2017; 105:473-8. [DOI: 10.1160/th10-02-0123] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2010] [Accepted: 12/24/2010] [Indexed: 11/05/2022]
Abstract
SummaryA healthy Japanese male had reduced factor XII (FXII) activity (35%) in contrast to normal antigen levels (81%). The F12 of this proband had a 9775G to C mutation in exon 10 and an 11276G to A mutation in exon 13 that resulted in two amino acid substitutions of Ala324Pro (GCG→CCG) in the proline-rich connecting region and Gly531Glu (GGG→GAG) near the active Ser544 in the catalytic domain. His father had the nucleotide 46T/T and a heterozygous 9775G/C mutation. The FXII activity (32%) and antigen level (38%) of the father were about half that of normal individuals with 46T/T, suggesting a heterozygous cross reacting material (CRM)-negative deficiency. His mother had a 46C/T and heterozygous 11276G/A mutation, and 80% FXII activity was incompatible with the corresponding antigen level (125%), suggesting a heterozygous CRM-positive deficiency. The substitution of Ala324Pro probably caused the CRM-negative mutation and the Gly531Glu caused the CRM-positive mutation. We developed three methods based on chromogenic substrates to assay the distinct functions of FXII, namely its autoactivation on a negatively charged surface, activation by kallikrein cleavage and the prekallikrein cleavage activity of FXIIa. The ratios of autoactivated FXIIa/FXII antigen (0.80–1.10) and of kallikrein-induced FXIIa/FXII antigen (0.86–1.00) in plasma from the proband were within normal ranges, whereas those of FXIIa-induced kallikrein/FXII antigen were reduced to 0.41–0.45. In conclusion, the 9775G to C and 11276G to A mutations of F12 led to a CRM-negative and -positive FXII deficiency, and the F12 with 11276A produced a dys-functional type of FXII with a partial defect (0.41–0.45) in prekallikrein cleavage activity.
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Okamoto H, Sakasai T, Nishioka S, Miura Y, Iijima K, Wakita A, Nakamura S, Kato T, Abe Y, Itami J. Dosimetric Characteristics of Double-Focused MLCs in MRI-Guided Radiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.2301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Matsumoto M, Awano H, Nagai M, Shirakawa T, Iijima K, Matsuo M. Urinary excretion of 8-OHdG, a biomarker of oxidative DNA damage, increases with age in DMD patients. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Kamada S, Hanazono A, Sanpei Y, Fukunaga H, Inoue T, Suzuki S, Sugawara M, Iijima K. Anti-titin antibody, one of the antistriational autoantibodies was found in a case of seronegative myasthenia gravis associated with anti-PD-1 therapy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3224] [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: 11/15/2022]
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30
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Uchida M, Anderson EL, Squillace DL, Patil N, Maniak PJ, Iijima K, Kita H, O'Grady SM. Oxidative stress serves as a key checkpoint for IL-33 release by airway epithelium. Allergy 2017; 72:1521-1531. [PMID: 28273344 DOI: 10.1111/all.13158] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/02/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Interleukin (IL)-33 is implicated in the pathophysiology of asthma and allergic diseases. However, our knowledge is limited regarding how IL-33 release is controlled. The transcription factor nuclear factor-erythroid-2-related factor 2 (Nrf2) plays a key role in antioxidant response regulation. OBJECTIVE The goal of this project was to investigate the role of cellular oxidative stress in controlling IL-33 release in airway epithelium. METHODS Complementary approaches were used that included human bronchial epithelial cells and mouse models of airway type-2 immunity that were exposed to fungus Alternaria extract. The clinically available Nrf2 activator 2-cyano-3,12-dioxooleana-1,9-dien-28-oic acid methyl ester (CDDO-Me) was used to evaluate the role of Nrf2-induced antioxidant molecules. RESULTS Human bronchial epithelial cells produced reactive oxygen species (ROS) when they were exposed to Alternaria extract. ROS scavengers, such as glutathione (GSH) and N-acetyl cysteine, prevented extracellular secretion of ATP and increases in intracellular calcium concentrations that precede IL-33 release. Administration of CDDO-Me to mice enhanced expression of a number of antioxidant molecules in the lungs and elevated lung levels of endogenous GSH. Importantly, CDDO-Me treatment reduced allergen-induced ATP secretion and IL-33 release by airway epithelial cells in vitro and protected mice from IL-33 release and asthma-like pathological changes in the lungs. CONCLUSIONS The balance between oxidative stress and antioxidant responses plays a key role in controlling IL-33 release in airway epithelium. The therapeutic potential of Nrf2 activators needs to be considered for asthma and allergic airway diseases.
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Affiliation(s)
- M. Uchida
- Division of Allergic Diseases; Department of Internal Medicine; Mayo Clinic; Rochester MN USA
- Division of Hematology; Respiratory Medicine and Oncology; Department of Internal Medicine; Faculty of Medicine; Saga University; Saga Japan
| | | | - D. L. Squillace
- Division of Allergic Diseases; Department of Internal Medicine; Mayo Clinic; Rochester MN USA
| | - N. Patil
- Departments of Integrated Biology and Physiology and Animal Science; University of Minnesota; St. Paul MN USA
| | - P. J. Maniak
- Departments of Integrated Biology and Physiology and Animal Science; University of Minnesota; St. Paul MN USA
| | - K. Iijima
- Division of Allergic Diseases; Department of Internal Medicine; Mayo Clinic; Rochester MN USA
| | - H. Kita
- Division of Allergic Diseases; Department of Internal Medicine; Mayo Clinic; Rochester MN USA
- Department of Immunology; Mayo Clinic; Rochester MN USA
| | - S. M. O'Grady
- Departments of Integrated Biology and Physiology and Animal Science; University of Minnesota; St. Paul MN USA
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Yamanaka T, Hirota Y, Oda A, Furuta T, Yoshie S, Matsumoto Y, Iijima K, Akishita M. FACTORS RELATED TO QOL AND WELL-BEING OF THE ELDERLY WHO NEED HOME CARE AND THEIR CAREGIVERS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4168] [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)
- T. Yamanaka
- Center for Home Care Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan,
| | - Y. Hirota
- Center for Home Care Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan,
| | - A. Oda
- Home Clinic Kashiwa, Kashiwa, Japan,
| | | | - S. Yoshie
- Center for Home Care Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan,
| | - Y. Matsumoto
- Center for Home Care Medicine, Faculty of Medicine, The University of Tokyo, Tokyo, Japan,
| | - K. Iijima
- Institute of Gerontology, The University of Tokyo, Tokyo, Japan,
| | - M. Akishita
- Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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32
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Suthutvoravut U, Tanaka T, Takahashi K, Yoshizawa Y, Fujisaki M, Akishita M, Iijima K. FREQUENCY OF FOOD GROUPS CONSUMPTION IS RELATED WITH FRAILTY IN ELDERLY: FROM KASHIWA STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4433] [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: 11/13/2022] Open
Affiliation(s)
- U. Suthutvoravut
- The University of Tokyo, Tokyo, Tokyo, Japan,
- Mahidol University, Bangkok, Thailand,
| | - T. Tanaka
- The University of Tokyo, Tokyo, Tokyo, Japan,
| | | | | | - M. Fujisaki
- The University of Tokyo, Tokyo, Tokyo, Japan,
| | - M. Akishita
- The University of Tokyo, Tokyo, Tokyo, Japan,
| | - K. Iijima
- The University of Tokyo, Tokyo, Tokyo, Japan,
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Iijima K, Kuroda A, Tanaka T, Takahashi K, Akishita M, Tsuji T. IMPACT OF SOCIAL DISENGAGEMENT ON PHYSICAL PERFORMANCE IN JAPANESE COMMUNITY-DWELLING ELDERLY STUDY. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.4293] [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)
- K. Iijima
- Institute of Gerontology, The University of Tokyo, Tokyo, Japan,
| | - A. Kuroda
- Institute of Gerontology, The University of Tokyo, Tokyo, Japan,
| | - T. Tanaka
- Geriatric Medicine, The University of Tokyo, Tokyo, Japan
| | - K. Takahashi
- Institute of Gerontology, The University of Tokyo, Tokyo, Japan,
| | - M. Akishita
- Geriatric Medicine, The University of Tokyo, Tokyo, Japan
| | - T. Tsuji
- Institute of Gerontology, The University of Tokyo, Tokyo, Japan,
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34
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Saito M, Iijima K, Nakai K, Horimoto Y, Mori M, Himuro T, Uomori T, Murakami F, Arakawa A, Sasai K. Risk factors for locoregional recurrence after post-mastectomy radiation therapy (PMRT) and chemotherapy in patients with 4 or more metastatic nodes. Breast 2017. [DOI: 10.1016/s0960-9776(17)30248-5] [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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35
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Matsumoto M, Awano H, Lee T, Shimomura H, Takeshima Y, Matsuo M, Iijima K. Height is significantly shorter in Duchenne muscular dystrophy than Becker muscular dystrophy and the incidence of short stature is highest in Dp71 mutated subgroup. Neuromuscul Disord 2016. [DOI: 10.1016/j.nmd.2016.06.043] [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: 10/21/2022]
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36
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Anderson EL, Kobayashi T, Iijima K, Bartemes KR, Chen CC, Kita H. IL-33 mediates reactive eosinophilopoiesis in response to airborne allergen exposure. Allergy 2016; 71:977-88. [PMID: 26864308 DOI: 10.1111/all.12861] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/05/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND Exposure to aeroallergens induces eosinophilic airway inflammation in patients with asthma and allergic airway diseases. The circulating number of eosinophils in peripheral blood is relatively small, leading us to hypothesize that bone marrow needs to be engaged quickly to meet the demands of the tissues. METHODS To investigate the communication between the lungs and bone marrow, we used acute allergen exposure and airway inflammation models in mice. Gene-deficient mice and cytokine reporter mice as well as in vitro cell culture models were used to dissect the mechanisms. RESULTS Naïve BALB/c mice produced increased numbers of eosinophil precursors and mature eosinophils in the bone marrow when their airways were exposed to a common fungal allergen, Alternaria alternata. Expression of IL-5 and IL-33 increased rapidly in the lungs, but not in the bone marrow. Sera from allergen-exposed mice promoted eosinophilopoiesis in bone marrow cells from naïve mice, which was blocked by anti-IL-5 antibody. Mice deficient in the IL-33 receptor ST2 (i.e., Il1rl1(-/-) mice) were unable to increase their serum levels of IL-5 and allergen-induced eosinophilopoiesis in the bone marrow after allergen exposure. Finally, group 2 innate lymphoid cells (ILC2s) in the lungs showed robust expression of IL-5 after Alternaria exposure. CONCLUSIONS These finding suggests that lung IL-33, through innate activation of ILC2s and their production of IL-5, plays a key role in promoting acute reactive eosinophilopoiesis in the bone marrow when naïve animals are exposed to airborne allergens. Therefore, bone marrow eosinophilopoiesis may be affected by atmospheric environmental conditions.
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Affiliation(s)
| | - T. Kobayashi
- Division of Allergic Diseases; Department of Internal Medicine; Mayo Clinic; Rochester MN USA
| | - K. Iijima
- Division of Allergic Diseases; Department of Internal Medicine; Mayo Clinic; Rochester MN USA
| | | | - C.-C. Chen
- Department of Immunology; Mayo Clinic; Rochester MN USA
| | - H. Kita
- Department of Immunology; Mayo Clinic; Rochester MN USA
- Division of Allergic Diseases; Department of Internal Medicine; Mayo Clinic; Rochester MN USA
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37
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Niikura N, Tomotaki A, Miyata H, Iwamoto T, Kawai M, Anan K, Hayashi N, Aogi K, Ishida T, Masuoka H, Iijima K, Masuda S, Tsugawa K, Kinoshita T, Nakamura S, Tokuda Y. Changes in tumor expression of HER2 and hormone receptors status after neoadjuvant chemotherapy in 21 755 patients from the Japanese breast cancer registry. Ann Oncol 2016; 27:480-7. [DOI: 10.1093/annonc/mdv611] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Accepted: 11/28/2015] [Indexed: 12/17/2022] Open
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38
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Htun NC, Ishikawa-Takata K, Kuroda A, Tanaka T, Kikutani T, Obuchi SP, Hirano H, Iijima K. Screening for Malnutrition in Community Dwelling Older Japanese: Preliminary Development and Evaluation of the Japanese Nutritional Risk Screening Tool (NRST). J Nutr Health Aging 2016; 20:114-20. [PMID: 26812506 DOI: 10.1007/s12603-015-0555-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [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: 12/19/2022]
Abstract
BACKGROUND Early and effective screening for age-related malnutrition is an essential part of providing optimal nutritional care to older populations. OBJECTIVE This study was performed to evaluate the adaptation of the original SCREEN II questionnaire (Seniors in the Community: Risk Evaluation for Eating and Nutrition, version II) for use in Japan by examining its measurement properties and ability to predict nutritional risk and sarcopenia in community-dwelling older Japanese people. The ultimate objective of this preliminary validation study is to develop a license granted full Japanese version of the SCREEN II. PARTICIPANTS The measurement properties and predictive validity of the NRST were examined in this cross-sectional study of 1921 community-dwelling older Japanese people. MEASUREMENTS Assessments included medical history, and anthropometric and serum albumin measurements. Questions on dietary habits that corresponded to the original SCREEN II were applied to Nutritional Risk Screening Tool (NRST) scoring system. Nutritional risk was assessed by the Geriatric Nutrition Risk Index (GNRI) and the short form of the Mini-Nutritional Assessment (MNA-SF). Sarcopenia was diagnosed according to the criteria of the European Working Group on Sarcopenia in Older People. RESULTS The nutritional risk prevalences determined by the GNRI and MNA-SF were 5.6% and 34.7%, respectively. The prevalence of sarcopenia was 13.3%. Mean NRST scores were significantly lower in the nutritionally at-risk than in the well-nourished groups. Concurrent validity analysis showed significant correlations between NRST scores and both nutritional risk parameters (GNRI or MNA-SF) and sarcopenia. The areas under the receiver operating characteristic curves (AUC) of NRST for the prediction of nutritional risk were 0.635 and 0.584 as assessed by GNRI and MNA-SF, respectively. AUCs for the prediction of sarcopenia were 0.602 (NRST), 0.655 (age-integrated NRST), and 0.676 (age and BMI-integrated NRST). CONCLUSIONS These results indicate that the NRST is a promising screening tool for the prediction of malnutrition and sarcopenia in community-dwelling older Japanese people. Further development of a full Japanese version of the SCREEN II is indicated.
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Affiliation(s)
- N C Htun
- Kazuko Ishikawa-Takata, Section of Nutritional Care and Management, Department of Nutritional Education, National Institute of Health and Nutrition, 1-23-1 Toyama, Shinjuku-ku, 162-8636 Tokyo, Japan; Tel: +81-3-3203-5721, Fax: +81-3-3202-3278,
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39
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Iwakura N, Fujiwara Y, Tanaka F, Tanigawa T, Yamagami H, Shiba M, Tominaga K, Watanabe T, Iijima K, Koike T, Walls AF, Arakawa T. Basophil infiltration in eosinophilic oesophagitis and proton pump inhibitor-responsive oesophageal eosinophilia. Aliment Pharmacol Ther 2015; 41:776-84. [PMID: 25693747 DOI: 10.1111/apt.13141] [Citation(s) in RCA: 25] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 02/04/2015] [Accepted: 02/05/2015] [Indexed: 12/14/2022]
Abstract
BACKGROUND The features of proton pump inhibitor-responsive oesophageal eosinophilia (PPI-REE) are similar to those of eosinophilic oesophagitis (EoE), but PPI-REE demonstrates symptomatic and histological responses to PPI therapy. Several studies have shown that basophils play a crucial role in the pathogenesis of allergic diseases. AIM To identify and compare basophil infiltration in the oesophageal epithelium in patients with EoE, PPI-REE, gastroesophageal reflux disease (GERD) and normal oesophagus (controls). METHODS Biopsy specimens from 43 patients, including 12 with EoE, 11 with PPI-REE, 10 with GERD and 10 normal oesophagus, were analysed. Immunohistochemistry was performed to quantify the number of basophils and mast cells in the oesophageal epithelium. Double immunofluorescence staining for thymic stromal lymphopoietin (TSLP) and basophils was performed. Patients with EoE were treated with swallowed fluticasone. RESULTS There were no differences in clinical, endoscopic or histological features between patients with EoE and PPI-REE. There were more basophils and mast cells in patients with EoE and PPI-REE than in patients with GERD and control subjects. Basophil infiltration of the oesophageal epithelium in patients with EoE was higher than that in patients with PPI-REE (3.6 ± 2.8 per high power field vs. 1.2 ± 0.9 per high power field respectively; P = 0.02); however, there was no significant difference in mast cell infiltration between the two groups. TSLP was highly expressed in the oesophageal epithelium in areas infiltrated by basophils. Steroid therapy significantly decreased intraepithelial basophils in patients with EoE. CONCLUSION Basophils may play an important role in the pathogenesis of eosinophilic oesophagitis.
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Affiliation(s)
- N Iwakura
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan
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40
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Iijima K, Koike T, Ara N, Nakagawa K, Kondo Y, Uno K, Hatta W, Asano N, Imatani A, Shimosegawa T. Identification of a high-risk group for low-dose aspirin-induced gastropathy by measuring serum pepsinogen in H. pylori-infected subjects. J Gastroenterol 2015; 50:305-12. [PMID: 24952898 DOI: 10.1007/s00535-014-0976-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 06/04/2014] [Indexed: 02/04/2023]
Abstract
BACKGROUND We recently demonstrated in humans that the extent of low-dose aspirin (LDA)-induced gastropathy was directly related to the individual gastric acid secretion level. We also established reliable cutoff serum pepsinogen (PG) values to predict gastric acid secretion status. In this study, we investigated the clinical usefulness of measuring the serum pepsinogen values for identifying a high-risk group for gastric mucosal injury among chronic LDA users. METHODS One hundred long-term LDA users were enrolled in this analysis. Serum from each subject was subjected to determination of H. pylori status and measurement of pepsinogen values. According to our recent report, a PG I value ≥ 50 ng/mL was defined as estimated hyperchlorhydria in H. pylori-negative subjects, while a PG I/II ≥ 3.3 was defined as estimated hyperchlorhydria in H. pylori-positive subjects. The grade of gastric mucosal injury was assessed endoscopically, and multiple logistic regression analyses were used to estimate the risk. RESULTS Estimated hyperchlorhydria was a strong independent risk for intensive gastric mucosal injury with an OR (95% CI): 34.0 (4.5-259) and for gastric ulcer with an OR (95% CI): 10.2 (1.8-58.3) in H. pylori-positive subjects, while it was not a significant risk in H. pylori-negative subjects. The association persisted even after excluding those with conventional risks for LDA-gastropathy such as ulcer histories. CONCLUSION Using simple serum measurement of H. pylori antibody and pepsinogen concentrations, an extremely high-risk group for LDA-induced gastropathy could be extracted, and these patients should become a therapeutic target for prevention of LDA-induced gastropathy.
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Affiliation(s)
- K Iijima
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aobaku, Sendai, 980-8574, Japan,
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41
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Sawada T, Morimoto A, Mogami T, Iijima K, Akiyama Y, Katayama K, Futami T, Yunokawa M, Tamura K, Watanabe M, Koh Y, Koizumi F. 403 A novel dielectrophoretic microwell array system for detection and single cell analysis of circulating tumor cells from breast cancer patients. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70530-1] [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: 11/30/2022]
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42
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Drake LY, Iijima K, Kita H. Group 2 innate lymphoid cells and CD4+ T cells cooperate to mediate type 2 immune response in mice. Allergy 2014; 69:1300-7. [PMID: 24939388 DOI: 10.1111/all.12446] [Citation(s) in RCA: 148] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/07/2014] [Indexed: 12/12/2022]
Abstract
BACKGROUND Innate lymphoid cells (ILCs) play important roles in innate immunity and tissue remodeling via production of various cytokines and growth factors. Group 2 ILCs (ILC2s) were recently shown to mediate the immune pathology of asthma even without adaptive immunity. However, little is known about possible interactions between ILC2s and other immune cells. We sought to investigate the capacity of ILC2s to regulate effector functions of T cells. METHODS We isolated ILC2s from the lungs of naïve mice. We cultured CD4(+) T cells with ILC2s in vitro and examined the functions of these cell types. The mechanisms were investigated using blocking antibodies and cells isolated from cytokine-deficient mice. For the in vivo study, we adoptively transferred ILC2s and CD4(+) T cells into Il7ra(-/-) mice and subsequently exposed the mice to ovalbumin and a cysteine protease. RESULTS Lung ILC2s enhanced CD4(+) T-cell proliferation and promoted production of type 2 cytokines in vitro. The interaction between ILC2s and CD4(+) T cells involved costimulatory molecule OX40L and cytokine IL-4, which was mainly derived from ILC2s. Adoptive transfer of both ILC2 and CD4(+) T-cell populations, but not each population alone, into Il7ra(-/-) mice resulted in induction of a robust antigen-specific type 2 cytokine response and airway inflammation. CONCLUSION Lung ILC2s function to promote adaptive immunity in addition to their established roles in innate immunity. This novel function of ILC2s needs to be taken into account when considering the pathophysiology of asthma and other allergic airway diseases.
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Affiliation(s)
- L. Y. Drake
- Division of Allergic Diseases and Department of Medicine; Mayo Clinic; Rochester MN USA
| | - K. Iijima
- Division of Allergic Diseases and Department of Medicine; Mayo Clinic; Rochester MN USA
| | - H. Kita
- Division of Allergic Diseases; Departments of Medicine and Department of Immunology; Mayo Clinic; Rochester MN USA
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Abstract
The detection of early esophageal squamous cell carcinoma (ESCC) in patients following radiotherapy for squamous cell carcinoma of the head and neck (HNSCC) has increased with the development of endoscopic technologies. The aim of the current case - control study was to elucidate the risk factors of serious laryngeal edema, a lethal complication that occurs during endoscopic resection for ESCC. Among 184 consecutive patients who were treated by endoscopic resection for ESCC between January 2009 and May 2012, five of 22 patients with a history of radiotherapy for HNSCC suffered from serious laryngeal edema, which was not observed in patients who had not undergone radiotherapy. The susceptibility to serious laryngeal edema in patients with a history of radiotherapy followed by neck dissection for HNSCC was significantly greater than those without such histories. Despite the limited number of cases, we suggest that previous radiotherapy followed by neck dissection for HNSCC might be a predictive factor for serious laryngeal edema during endoscopic resection.
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Affiliation(s)
- N Ara
- Division of Gastroenterology, Tohoku University Hospital, Sendai, Japan
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Takeshima Y, Yagi M, Lee T, Kusunoki N, Ojima I, Minami S, Asai T, Nakagawa A, Iijima K, Matsuo M. P.11.16 Three-dimensional gait analysis of Duchenne muscular dystrophy: A trial to evaluate the therapeutic effect of RNA/ENA chimera antisense oligonucleotide that induces dystrophin exon 45 skipping. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.577] [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]
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45
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Nakagawa T, Takeuchi A, Kakiuchi R, Lee T, Yagi M, Awano H, Iijima K, Takeshima Y, Urade Y, Matsuo M. P.13.2 A prostaglandin D2 metabolite is elevated in the urine samples of patients with Duchenne muscular dystrophy. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.596] [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: 11/27/2022]
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46
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Iijima K, Iwabuchi T, Ara N, Koike T, Shinkai H, Kamata Y, Ichikawa T, Ishihara K, Shimosegawa T. Reactive increase in gastric mucus secretion is an adaptive defense mechanism against low-dose aspirin-induced gastropathy. Dig Dis Sci 2013; 58:2266-74. [PMID: 23649375 DOI: 10.1007/s10620-013-2660-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 03/20/2013] [Indexed: 01/28/2023]
Abstract
BACKGROUND Gastric mucus is considered to play an essential role in gastric mucosal defense mechanisms, especially when irritants are present in the stomach. AIM To investigate the relationship between low-dose aspirin-induced gastropathy and gastric secretory function, especially gastric mucus secretion, in healthy volunteers. METHODS Thirty male, asymptomatic, Helicobacter pylori pylori-negative healthy volunteers were asked to take 100 mg of enteric-coated aspirin (Bayaspirin) once a day for 10 days. Endoscopic examination was performed before and 3 and 10 days after drug administration. The extent of endoscopically assessed gastric mucosal injury was semi-quantitatively evaluated according to the modified Lanza score. The pentagastrin-stimulated gastric juice was collected for 10 min during the endoscopic examination and subjected to analysis for gastric acid (mEq/10 min) or mucus (mg hexose/10 min) output. RESULTS Overall, the 10-day aspirin treatment significantly increased gastric mucus secretion from 0.8 (interquartile range 1.7) to 1.6 (1.6) mg hexose/10 min (P < 0.05), with a concomitant and significant decrease in the gastric acid/mucus ratio from 4.3 (5.2) to 2.9 (4.7) (P < 0.01). Subsequent analysis of two subgroups of volunteers categorized according to their endoscopic status ("severe gastropathy" vs. "modest gastropathy") revealed that changes in gastric secretory parameters occurred exclusively in those subjects without severe gastric injury; there was no alteration in these parameters in subjects with severe gastric injury. CONCLUSIONS The results of this study suggest that the reactive increase in gastric mucus secretion is an adaptive defense mechanism against low-dose aspirin-induced gastropathy. In some individuals, such a response may be insufficient to prevent the development of severe mucosal injury and even ulcers and their complications.
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Affiliation(s)
- K Iijima
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aobaku, Sendai, Miyagi, 980-8574, Japan.
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Okamoto S, Sakama T, Nakamura S, Niimura F, Sahin S, Ertan P, Evrengul H, Horasan G, Dede B, Berdeli A, Yildiz N, Cicek Deniz N, Asadov R, Yucelten D, Alpay H, Prado G, Schoeneman M, Mongia A, Paudyal B, Feygina V, Norin A, Hochman D, Tawadrous H, Bansilal V, Topaloglu R, Gulhan B, Bilginer Y, Celebi Tayfur A, Yildiz C, Ozaltin F, Duzova A, Ozen S, Aki T, Besbas N, Komaki F, Hamasaki Y, Ishikura K, Hamada R, Sakai T, Hataya H, Ogata K, Fukuzawa R, Ando T, Honda M, Malke A, Silska-Dittmar M, Soltysiak J, Blumczynski A, Ostalska-Nowicka D, Zachwieja J, Tabel Y, Oncul M, Elmas A, Kavaz A, Ozcakar ZB, Bulum B, Ekim M, Yalcinkaya F, Prikhodina L, Turpitko O, Dlin V, Gheith O, Alotaibi T, Nampoory N, Mosaad A, Halim M, Saied T, Abou Ateya H, Adel H, Mozarei I, Neir P, Hamasaki Y, Uemura O, Ishikura K, Ito S, Wada N, Hattori M, Ohashi Y, Tanaka R, Nakanishi K, Kaneko T, Honda M, Golovachova V, Odinets Y, Laszki-Szczachor K, Polak-Jonkisz D, Sobieszczanska M, Rusiecki L, Zwolinska D, Ninchoji T, Kaitoh H, Matsunoshita N, Nozu K, Nakanishi K, Yoshikawa N, Iijima K, Maglalang-Reed OM, Elises JS, Zamora MNV, Pasco P, Arejola-Tan A, Alparslan C, Dogan SM, Kose E, Elmas C, Kilinc S, Arslan N, Kebabci E, Karaca C, Yavascan O, Aksu N, Minson S, Munoz M, Vergara I, Mraz M, Vaughan R, Rees L, Olsburgh J, Calder F, Shroff R, Zaicova N, Kavaz A, Ozcakar ZB, Bulum B, Ekim M, Yalcinkaya F, Lavrenchuk O, Viktoria D, Savchenko V, Bagdasarova I, Doyon A, Bayazit A, Canpolat N, Duzova A, Kracht D, Litwin M, Ranchin B, Shroff R, Sozeri B, Wuhl E, Zeller R, Melk A, Querfeld U, Schaefer F, Sinha MD, Turner C, Booth CJ, Goldsmith DJA, Simpson JM. Paediatric nephrology - A. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft124] [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
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Suzuki K, Iijima K, Ozaki K, Yamashita H. Study on ATP Production of Lactic Acid Bacteria in Beer and Development of a Rapid Pre-Screening Method for Beer-Spoilage Bacteria. Journal of the Institute of Brewing 2012. [DOI: 10.1002/j.2050-0416.2005.tb00691.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Nishimura S, Tanabe M, Sakai T, Kimura K, Morizono H, Iijima K, Makita M, Iwase T, Horii R, Akiyama F. 226. Can irradiation suppress multicentric cancers in conserved breast? Eur J Surg Oncol 2012. [DOI: 10.1016/j.ejso.2012.06.221] [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: 10/27/2022] Open
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Seno S, Iijima K, O'Grady S, Kita H. Cysteine Proteases Induce Production and Extracellular Release of IL-33 in Airway Epithelial Cells. J Allergy Clin Immunol 2012. [DOI: 10.1016/j.jaci.2011.12.306] [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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