1.The neutrophil-osteogenic cell axis promotes bone destruction in periodontitis
Ando YUTARO ; Tsukasaki MASAYUKI ; Huynh Cong-Nhat NAM ; Zang SHIZAO ; Yan MINGLU ; Muro RYUNOSUKE ; Nakamura KAZUTAKA ; Komagamine MASATSUGU ; Komatsu NORIKO ; Okamoto KAZUO ; Nakano KENTA ; Okamura TADASHI ; Yamaguchi AKIRA ; Ishihara KAZUYUKI ; Takayanagi HIROSHI
International Journal of Oral Science 2024;16(1):154-162
The immune-stromal cell interactions play a key role in health and diseases.In periodontitis,the most prevalent infectious disease in humans,immune cells accumulate in the oral mucosa and promote bone destruction by inducing receptor activator of nuclear factor-κB ligand(RANKL)expression in osteogenic cells such as osteoblasts and periodontal ligament cells.However,the detailed mechanism underlying immune-bone cell interactions in periodontitis is not fully understood.Here,we performed single-cell RNA-sequencing analysis on mouse periodontal lesions and showed that neutrophil-osteogenic cell crosstalk is involved in periodontitis-induced bone loss.The periodontal lesions displayed marked infiltration of neutrophils,and in silico analyses suggested that the neutrophils interacted with osteogenic cells through cytokine production.Among the cytokines expressed in the periodontal neutrophils,oncostatin M(OSM)potently induced RANKL expression in the primary osteoblasts,and deletion of the OSM receptor in osteogenic cells significantly ameliorated periodontitis-induced bone loss.Epigenomic data analyses identified the OSM-regulated RANKL enhancer region in osteogenic cells,and mice lacking this enhancer showed decreased periodontal bone loss while maintaining physiological bone metabolism.These findings shed light on the role of neutrophils in bone regulation during bacterial infection,highlighting the novel mechanism underlying osteoimmune crosstalk.
2.Interpolation of Dance’s coefficients for the estimation of average glandular dose in mammography
Noriko NAKAMURA ; Yuka OKAFUJI ; Saori ADACHI ; Kyoko ICHIURA
Journal of Rural Medicine 2019;14(1):103-109
Objective: The average glandular dose (AGD) is used to evaluate the radiation dosage in mammography. Dance et al. (2000) presented a computation formula to estimate the AGD based on several coefficient factors, such as compressed breast thickness, breast tissue composition, and half-value layers (HVLs). The objective of this study was to improve the preciseness of AGD estimation.Materials and Methods: We interpolated the coefficients developed by Dance et al. to generate an approximation formulae and reference datasets with higher granularity and breast thickness (2–6 cm) relevant to a Japanese population.Results: The results from this study indicate that the incorporation of HVLs and breast thickness required in mammography densitometry leads to an advancement in the current method for estimating the average glandular dose.Conclusions: We expect that these interpolated values will serve as a reference for other researchers and allow for a more accurate, detailed, and individualized AGD estimation.
3.Effect of elemental diet combined with infliximab dose escalation in patients with Crohn's disease with loss of response to infliximab: CERISIER trial.
Tadakazu HISAMATSU ; Reiko KUNISAKI ; Shiro NAKAMURA ; Tomoyuki TSUJIKAWA ; Fumihito HIRAI ; Hiroshi NAKASE ; Kenji WATANABE ; Kaoru YOKOYAMA ; Masakazu NAGAHORI ; Takanori KANAI ; Makoto NAGANUMA ; Hirofumi MICHIMAE ; Akira ANDOH ; Akihiro YAMADA ; Tadashi YOKOYAMA ; Noriko KAMATA ; Shinji TANAKA ; Yasuo SUZUKI ; Toshifumi HIBI ; Mamoru WATANABE
Intestinal Research 2018;16(3):494-498
No abstract available.
Crohn Disease*
;
Food, Formulated*
;
Humans
;
Infliximab*
4.Seven days triple therapy for eradication of Helicobacter pylori does not alter the disease activity of patients with inflammatory bowel disease.
Shinichiro SHINZAKI ; Toshimitsu FUJII ; Shigeki BAMBA ; Maiko OGAWA ; Taku KOBAYASHI ; Masahide OSHITA ; Hiroki TANAKA ; Keiji OZEKI ; Sakuma TAKAHASHI ; Hiroki KITAMOTO ; Kazuhito KANI ; Sohachi NANJO ; Takeshi SUGAYA ; Yuko SAKAKIBARA ; Toshihiro INOKUCHI ; Kazuki KAKIMOTO ; Akihiro YAMADA ; Hisae YASUHARA ; Yoko YOKOYAMA ; Takuya YOSHINO ; Akira MATSUI ; Misaki NAKAMURA ; Taku TOMIZAWA ; Ryosuke SAKEMI ; Noriko KAMATA ; Toshifumi HIBI
Intestinal Research 2018;16(4):609-618
BACKGROUND/AIMS: The influences of Helicobacter pylori eradication therapy on the disease course of inflammatory bowel disease (IBD) are still unclear. We therefore conducted a multicenter, retrospective cohort study to evaluate the safety of H. pylori eradication therapy for IBD patients. METHODS: IBD patients with H. pylori eradication from 2005 to 2015 (eradication group) and control patients (non-eradication group; 2 paired IBD patients without H. pylori eradication matched with each eradicated patient) were included. IBD exacerbation (increased/additional IBD drug or IBD-associated hospitalization/surgery) and disease improvement based on the physicians’ global assessment were investigated at baseline, and at 2 and 6 months after eradication or observation. RESULTS: A total of 429 IBD (378 ulcerative colitis, 51 Crohn’s disease) patients, comprising 144 patients in the eradication group and 285 patients in the non-eradication group, were enrolled at 25 institutions. IBD exacerbation was comparable between groups (eradication group: 8.3% at 2 months [odds ratio, 1.76; 95% confidence interval, 0.78–3.92; P=0.170], 11.8% at 6 months [odds ratio, 1.60; 95% confidence interval, 0.81–3.11; P=0.172]). Based on the physicians’ global assessment at 2 months, none of the patients in the eradication group improved, whereas 3.2% of the patients in the non-eradication group improved (P=0.019). Multivariate analysis revealed that active disease at baseline, but not H. pylori eradication, was an independent factor for IBD exacerbation during 2 months’ observation period. The overall eradication rate was 84.0%–comparable to previous reports in non-IBD patients. CONCLUSIONS: H. pylori eradication therapy does not alter the short-term disease activity of IBD.
Clarithromycin
;
Cohort Studies
;
Colitis, Ulcerative
;
Helicobacter pylori*
;
Helicobacter*
;
Humans
;
Inflammatory Bowel Diseases*
;
Metronidazole
;
Multivariate Analysis
;
Retrospective Studies
5.Identification of shared and unique gene families associated with oral clefts
Funato NORIKO ; Nakamura MASATAKA
International Journal of Oral Science 2017;9(2):104-109
Oral clefts, the most frequent congenital birth defects in humans, are multifactorial disorders caused by genetic and environmental factors. Epidemiological studies point to different etiologies underlying the oral cleft phenotypes, cleft lip (CL), CL and/or palate (CL/P) and cleft palate (CP). More than 350 genes have syndromic and/or nonsyndromic oral cleft associations in humans. Although genes related to genetic disorders associated with oral cleft phenotypes are known, a gap between detecting these associations and interpretation of their biological importance has remained. Here, using a gene ontology analysis approach, we grouped these candidate genes on the basis of different functional categories to gain insight into the genetic etiology of oral clefts. We identified different genetic profiles and found correlations between the functions of gene products and oral cleft phenotypes. Our results indicate inherent differences in the genetic etiologies that underlie oral cleft phenotypes and support epidemiological evidence that genes associated with CL/P are both developmentally and genetically different from CP only, incomplete CP, and submucous CP. The epidemiological differences among cleft phenotypes may reflect differences in the underlying genetic causes. Understanding the different causative etiologies of oral clefts is important as it may lead to improvements in diagnosis, counseling, and prevention.
6.Analysis of Adverse Events In Infants After Simultaneous Administration of Inactivated Vaccine
Kiyotaka OHTANI ; Noriko MATSUMOTO ; Mayu FUJIMOTO ; Hitomi INAGAKI ; Yuichiro YOKOZEKI ; Kazuteru KITSUDA ; Miho KAIDA ; Masako KITSUNEZAKI ; Shinya NAKAMURA ; Yukifumi YOKOTA
Journal of the Japanese Association of Rural Medicine 2016;64(5):798-807
In Japan, few reports have discussed adverse events and safety after simultaneous vaccination during infancy. The purpose of this study was to elucidate adverse events after simultaneous vaccination of inactivated vaccines in infants in comparison with those after single vaccination. Selected for this study were infants aged ≥2 months who received subcutaneous injections of inactivated vaccines between July 2012 and June 2013. These subjects were divided into two groups: a single-vaccination group (46 subjects) and simultaneous-vaccination group (42 subjects). The presence or absence of severe adverse events that required hospitalization was investigated. We also checked up on subject background and systemic [fever (transitional and highest body temperature)] and local (dermatological, respiratory, gastrointestinal, neurological, and other organs’ symptoms) adverse events. Questionnaires to investigate if adverse events occurred during one week after simultaneous vaccination, questionnaires were distributed to the parents of all the subjects. “We performed vaccination in 162 subjects, and the collect rate of questionnaires was 57% (97/162).” The percentage of effective answers to the questionnaire survey was 91% (88/97). Among simultaneous-vaccination group subjects, 14 (32%) received Haemophilus influenzae type b (Hib) + 7-valent pneumococcal vaccine (PCV7) and 12 (27%) received Hib + PCV7 + Diphtheria-Pertussis-Tetanus vaccine. No subject developed severe adverse events that required hospitalization. The body temperatures taken on the day following the injection in the simultaneous-vaccination group were significantly higher than those in the single-vaccination group (p=0.049). However, the incidence of other systemic and local adverse events in the simultaneous-vaccination group was not significantly different from that in the single-vaccination group. Compared with single vaccination, simultaneous vaccination of inactivated vaccines in infants resulted in a significant rise in body temperature on the day following vaccination; however, no severe adverse events occurred.
7.A Qualitative Study: Factors Related to the Prevalence of Leftover Drugs for Senior Patients in Japan
Tomomi Nakamura ; Keiko Kishimoto ; Katsunori Yamaura ; Noriko Fukushima
Japanese Journal of Social Pharmacy 2016;35(1):2-9
To consider what pharmacists can do to prevent patients from having leftover prescription drugs, we conducted a qualitative study about the various causes behind the unused drugs. We interviewed one male and four female home-care patients who had leftover prescription drugs that pharmacists detected via their home visiting service. The Grounded Theory Approach was used for analysis, and two types were identified as “exogenous factors that cause confusion for the patient” and “patient’s personal thoughts and feelings.” “Exogenous factors that cause confusion” involved eight factors, including unsuitable dosing schedule for lifestyle, complex timing for taking medicine, and inadequate support for enhancing patients’ compliance. These factors were divided into [problems with prescription] and [difficult changes to manage]. In “patient’s personal thoughts and feelings,” 16 concepts were identified and their broader concepts comprised six categories: [distrust of drugs], [taking a positive view about one’s own non-compliance], [psychological distance from medical staff], and others. It was assumed that there would be a perception gap of compliance between patients and medical staff. Moreover, patients affirmed their poor compliance and they did not see the occurrence of leftover drugs as a problem. Additionally, psychological distance from medical staff prevents patients from consultation. Therefore, pharmacists should check patients’ compliance for each drug as well as any medical problems. Knowing patients’ inherent mind revealed by this study, the pharmacist can assist medication alongside patients and contribute to the early prevention of unused drugs.
8.Cosmetic Evaluation Methods Adapted to Asian Patients after Breast-Conserving Surgery and Examination of the Necessarily Elements for Cosmetic Evaluation.
Yuki NOHARA ; Noriko HANAMURA ; Hisamitsu ZAHA ; Hiroko KIMURA ; Yumi KASHIKURA ; Takashi NAKAMURA ; Aya NORO ; Nao IMAI ; Mai SHIBUSAWA ; Tomoko OGAWA
Journal of Breast Cancer 2015;18(1):80-86
PURPOSE: Although various strategies have been reported, there are no defined criteria for cosmetic evaluation methods after breast-conserving surgery (BCS). Since Asians tend to have smaller breasts, indistinct inframammary folds, and conspicuous scars, differences in the cosmetic results are expected. So we examined two subjective methods and one objective method to determine the differences, and elements necessary for a cosmetic evaluation after BCS. METHODS: Frontal photographs of 190 Japanese were evaluated using the Harris scale (Harris) and the evaluation method proposed by the Japanese Breast Cancer Society Sawai group (Sawai group) as the subjective methods, and the Breast Cancer Conservation Treatment cosmetic results (BCCT.core) as the objective method, respectively. In order to examine the necessary elements for developing a new ideal method, 100 out of 190 were selected and assessed separately by six raters using both the Harris and modified Sawai group methods in the observer assessment. The correlation between the two methods was examined using the Spearman rank-correlation coefficient. RESULTS: The results of the BCCT.core and the other two methods were clearly different. In the observer assessment, the consensuses of the six raters were evaluated as follows: 27, 27, 26, and 20 cases were evaluated as "excellent," "good," "fair," and "poor," respectively. For the Spearman rank-correlation coefficient, values higher than 0.7 indicated a strong correlation, as seen by the values of 0.909 for the breast shape and 0.345 for the scar. The breast shape accounted for the most significant part of the evaluation, and the scar had very little correlation. CONCLUSION: In this study, we recognized a clear difference between the subjective and objective evaluation methods, and identified the necessary elements for cosmetic evaluation. We would like to continue developing an ideal cosmetic evaluation that is similar to subjective one and is independent from raters.
Asian Continental Ancestry Group*
;
Breast
;
Breast Neoplasms
;
Cicatrix
;
Consensus
;
Esthetics
;
Humans
;
Mastectomy, Segmental*
9.Effectiveness and Sustainability of Education about Incident Reporting at a University Hospital in Japan.
Noriko NAKAMURA ; Yuichi YAMASHITA ; Shinichi TANIHARA ; Chiemi MAEDA
Healthcare Informatics Research 2014;20(3):209-215
OBJECTIVES: The aim of this study was to evaluate the effectiveness and sustainability of educational interventions to encourage incident reporting. METHODS: This was a quasi-experimental design. The study involved nurses working in two gastroenterology surgical wards at Fukuoka University Hospital, Japan. The number of participants on each ward was 26 nurses at baseline. For the intervention group, we provided 15 minutes of education about patient safety and the importance of incident reporting once per month for six months. After the completion of the intervention, we compared incident reporting in the subsequent 12 months for both groups. Questionnaires about reasons/motives for reporting were administered three times, before the intervention, after the intervention, and six months after the intervention for both the intervention group and the control group. RESULTS: For the intervention group, incident reporting during the 6 months after the intervention period increased significantly compared with the baseline. During the same period, the reasons and motives for reporting changed significantly in the intervention group. The increase in reported incidents during the 6- to 12-month period following the intervention was not significant. In the control group, there was no significant difference during follow-up compared with the baseline. CONCLUSIONS: A brief intervention about patient safety changed the motives for reporting incidents and the frequency of incidents reported by nurses working in surgical wards in a university hospital in Japan. However, the effect of the education decreased after six months following the education. Regular and long-term effort is required to maintain the effect of education.
Education*
;
Follow-Up Studies
;
Gastroenterology
;
Japan*
;
Patient Safety
;
Risk Management
;
Surveys and Questionnaires
10.Abdominal Advancement Flap as Oncoplastic Breast Conservation: Report of Seven Cases and Their Cosmetic Results.
Tomoko OGAWA ; Noriko HANAMURA ; Masako YAMASHITA ; Minori ITO ; Hiroko KIMURA ; Takashi NAKAMURA ; Yumi KASHIKURA ; Yuki NOHARA ; Aya NORO
Journal of Breast Cancer 2013;16(2):236-243
An abdominal advancement flap (AAF) is a flap that pulls the elevated abdominal skin up and creates the shape of the inferior portion of the breast by making a neo-inframammary fold. Seven patients underwent remodeling using an AAF or a method combining an AAF with other volume displacement techniques after partial mastectomy. The excision volume ranged from 15% to 35%. AAF with only mobilization of the gland flaps was performed in two cases, with lateral mammoplasty in one case, with the round block technique (RBT) in one case, with a modified RBT in one case, and with medial mammoplasty in two cases. Although one patient treated with a RBT had a partial blood-flow insufficiency of the nipple-areola complex, it improved with conservative treatment. The cosmetic results were found to be excellent in three cases, good in three, and fair in one case.
Breast
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Cosmetics
;
Displacement (Psychology)
;
Female
;
Humans
;
Mammaplasty
;
Mastectomy, Segmental
;
Skin
;
Surgical Procedures, Operative


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