The Tohoku Journal of Experimental Medicine
Online ISSN : 1349-3329
Print ISSN : 0040-8727
ISSN-L : 0040-8727
Volume 249, Issue 2
October
Displaying 1-7 of 7 articles from this issue
Regular Contribution
  • Reiko Sakama, Hirohide Yokokawa, Kazutoshi Fujibayashi, Toshio Naito, ...
    Article type: Regular Contribution
    2019 Volume 249 Issue 2 Pages 85-92
    Published: 2019
    Released on J-STAGE: October 11, 2019
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    The 2011 Great East Japan Earthquake was the largest and most catastrophic earthquake and tsunami in Japanese history. The aim of the present study was to evaluate the burden and psychological characteristics of children at 2 years after this catastrophe to allow a better understanding of the situation and the provision of appropriate support. We investigated a cross-sectional study carried out in 2013 by sending a questionnaire to schools located in Miyagi Prefecture to be answered by parents or guardians. The questionnaire included the Strengths and Difficulties Questionnaire (SDQ) to estimate the psychological adaptation of children. Telephone consultations were provided for children with SDQ scores > 16 whose parents or guardians had given consent. From the target population of 12,742, a total of 4,074 responses were received (response rate: 32%), among which, 720 had an SDQ score > 16 and received a telephone consultation. At the time of the telephone consultation, 301 (42%) of the 720 children and parents or guardians showed some type of psychological reaction and were thus classified as “Insufficient recovery”. Among these, 230 had not received social support at any point in time, suggesting the need for long-term psychological support. Those who resided in a coastal area tended to show a higher rate of psychological reactions than those in an inland area (27.1% vs. 12.9%, respectively). In conclusion, catastrophic disasters have a long-lasting psychological impact on children, and thus, long-term psychological support may be needed.

  • Xiaoyan Guo, Tengfei Shi, Mingrui Lin, Yiyuan Zhang
    Article type: Regular Contribution
    2019 Volume 249 Issue 2 Pages 93-100
    Published: 2019
    Released on J-STAGE: October 12, 2019
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    Synpolydactyly is a congenital limb malformation characterized by incomplete separation and duplication in fingers and/or toes, which is mainly caused by mutations in the homeobox D13 (HOXD13) gene. Here, a four-generation family with variant phenotypes of synpolydactyly was analyzed, in which the proband had bilateral preaxial synpolydactyly in toes with normal fingers, the father had clinodactyly in the fifth fingers, while the mother and grandma was normal. Trio whole-exome sequencing (trio-WES) is a high throughput sequencing targeting whole genome for detecting exonic variants from the proband and the parents in a family. Through trio-WES followed by Sanger sequencing and enzyme digestion, a heterozygous nonsense mutation (c.859 C>T/p.Gln287Ter) was newly identified in the homeodomain of the HOXD13 gene from the proband and the affected father, but not from the unaffected mother, the unaffected grandma, or the normal control. Mutation Taster, Human Splicing Finder and EX-SKIP predicted that the heterozygous mutation (c.859 C>T) would result in haploinsufficiency of HOXD13 protein through nonsense-mediated mRNA decay (NMD) and splicing abnormality, which might disrupt the integrity and reduce the expression level of the HOXD13 protein (loss-of-function). In short, a heterozygous nonsense mutation in the HOXD13 gene was newly identified in two patients with mild phenotypes of synpolydactyly, which extends the mutation spectrum in HOXD13 gene. Moreover, the findings we presented here deepen our understanding of the clinical consequences of non-syndromic synpolydactyly and may provide a new clue for further studies of the pathogenic mechanism of the mutation that causes aberrant splicing of HOXD13 gene.

  • Yuri Murayama, Ken Inoue, Chiho Yamazaki, Satomi Kameo, Minato Nakazaw ...
    Article type: Regular Contribution
    2019 Volume 249 Issue 2 Pages 101-111
    Published: 2019
    Released on J-STAGE: October 22, 2019
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    For the prevention of suicides, the early detection of depression symptoms and the implementation of suicide prevention measures based on the local community’s conditions are critical. In rural or remote communities with poor access to urban areas, the medical care is often insufficient. We conducted the present study to investigate the relationship between depressive state and social-environmental factors in a depopulated inland rural area in central Japan, where the suicide rate is high and specialized psychiatric care is not available. Using a correspondence analysis, logistic regression analysis, and structural equation modeling (SEM), we examined the questionnaire responses of 912 residents (average 60.5 years old). Total Health Index-Depression (THI-D) scale scores were used to measure depressive state. The lifestyle-related factor with the strongest link to depressive state was ‘concerns about interpersonal relationships’ (OR = 2.7, 95% CI: 2.06-3.53, p < 0.0001), whereas financial concerns, number of friends, exercise habits, and perceived amount of sleep were also useful for predicting depressive state. The SEM showed that one’s job and private life, particularly concerns about interpersonal relationships, are correlated with higher THI-D scores. Thus, social and lifestyle factors (e.g., concerns about interpersonal relationships and financial situation) can be used to predict depressive state in a depopulated rural area, and the newly revealed order in which depressive symptoms manifest is important. Our findings can be used to advance assessments of depressive symptoms and will be useful for mental health and suicide prevention.

  • Tadashi Ishii, Tetsuya Akaishi, Kenji Fujimori, Michiaki Abe, Masato O ...
    Article type: Regular Contribution
    2019 Volume 249 Issue 2 Pages 113-119
    Published: 2019
    Released on J-STAGE: October 25, 2019
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    Clinical application of accumulated medical big data is a hot topic in medical informatics. Not only for suggesting possible diagnoses in each individual, large medical database can be possibly used for detecting undiagnosed patients in the general population. In this study, we tried to develop a computerized system of detecting overlooked undiagnosed patients with rare chronic diseases in the community population by utilizing the uniformed national medical insurance record database. A cumulative total of 489,823 hospital visits at one tertiary medical center were collected for this project. As the target disease, we selected esophagogastric junction outflow obstruction (EGJOO), including achalasia, which is known to be easily overlooked without performing a barium swallow test. Patient selection software automatically picked out 17,814 individuals with the given suspected diagnoses that could be misdiagnosed in patients with the target disease, from which the software further picked out 526 individuals who underwent upper endoscopy but did not undergo barium swallow test. Of them, the hospital medical records suggested that 39 people still suffered from prolonged symptoms lasting for more than 6 months after the first hospital visit. Among them, 16 individuals agreed to undergo the barium swallow test. One of them was confirmed to suffer from EGJOO, possibly based on some undiagnosed connective tissue diseases. An automated computerized detection system with uniform big medical data would realize more efficient and less expensive screening system for undiagnosed chronic diseases in the general population based on symptoms and previously performed examinations in each individual.

  • Ayako Matsuda, Kenichi Inoue, Manami Momiyama, Kunihiko Kobayashi, Kao ...
    Article type: Regular Contribution
    2019 Volume 249 Issue 2 Pages 121-126
    Published: 2019
    Released on J-STAGE: October 25, 2019
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    The 10-item Perceived Efficacy in Patient-Physician Interactions (PEPPI-10) questionnaire was used as an indirect measure of the patients’ perception of the strength of their therapeutic connection with their physician. The English version of the PEPPI-10 could serve as a valuable research tool for analyzing the relationship between patient and physician. The incidence of breast cancer is amongst the highest in Japan, and Patient Reported Outcome is often used as an outcome measure for breast cancer. It is particularly important to establish a strong patient-physician interaction for patients with breast cancer, since these patients require long-term treatment. We designed the present study to assess the reliability and validity of the Japanese version of the PEPPI-10 in female Japanese breast cancer outpatients. A cross-sectional study was performed at the Saitama Cancer Center, Japan. From August 2014 to August 2015, the Japanese versions of the PEPPI-10 that measure patient-perceived self-efficacy and the Brief Illness Perception Questionnaire (BIPQ) that measure illness perception were used for 92 breast cancer patients who received outpatient chemotherapy (mean age: 52.9 years, Cancer Stage I or Stage II : 82.6%, receiving adjuvant chemotherapy: 69.6%). We found that the Japanese version of the PEPPI-10 scale had a high coefficient of internal consistency (Cronbach’s α coefficient, 0.83) for reliability, and concurrent validity analysis indicated that the utility of PEPPI-10 was moderately correlated with that of the BIPQ. In conclusion, the Japanese version of the PEPPI-10 is a useful tool that can empower breast cancer outpatients during the course of their treatment.

  • Rina Itto, Yuji Oe, Kenta Imaruoka, Emiko Sato, Akiyo Sekimoto, Shu Ya ...
    Article type: Regular Contribution
    2019 Volume 249 Issue 2 Pages 127-133
    Published: 2019
    Released on J-STAGE: October 31, 2019
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    Systemic lupus erythematosus (SLE) is characterized by the production of autoantibodies, which causes multi-organ injury such as lupus nephritis. SLE is associated with hypercoagulability. Activated coagulation factors such as tissue factor and VIIa complex and factor Xa activate protease-activated receptor 2 (PAR2). PAR2 promotes cytokine production through mitogen-activated protein kinase or nuclear factor kappa B signaling, and previous reports demonstrated that inhibition of PAR2 alleviated kidney injuries such as diabetic kidney disease and renal fibrosis in animal models. However, the involvement of PAR2 in the pathogenesis of SLE remains unclear. We therefore administered a selective PAR2 peptide antagonist, FSLLRY-NH2, to SLE-prone 4-month-old MRL-Faslpr mice for 4 weeks. Treatment with FSLLRY-NH2 caused the significant increases in the glomerular mesangial proliferation, glomerular deposition of both immunoglobulin G and complement factor C3d, and glomerular infiltration of Mac2-positive macrophages and CD3-positive T cells, compared with MRL-Faslpr mice treated with saline. In addition, the treatment with the PAR2 antagonist increased renal expression levels of tumor necrosis factor-α (Tnfa) and monocyte chemoattractant protein 1 (Mcp1) mRNA. Collectively, these results suggest that inhibition of PAR2 may increase the severity of inflammation in lupus nephritis; namely, opposite to previous observations, PAR2 has anti-inflammatory properties. We propose that activation of PAR2 could serve as a potential therapeutic option for patients with SLE.

  • Shu Soeda, Hyo Kyozuka, Asami Kato, Toma Fukuda, Hirotaka Isogami, Mar ...
    Article type: Regular Contribution
    2019 Volume 249 Issue 2 Pages 135-142
    Published: 2019
    Released on J-STAGE: October 31, 2019
    JOURNAL FREE ACCESS FULL-TEXT HTML

    Postpartum hemorrhage within 24 hours after delivery remains the leading cause of maternal mortality worldwide. Puerperal genital hematoma (PGHA) is a rare complication of postpartum hemorrhage, and PGHA can be life-threatening if hemostasis is not properly achieved. However, a reliable management algorithm for PGHA based on the clinical findings has not been developed. The objectives were to evaluate the management strategies for PGHA and identify the clinical findings that help select the treatment for PGHA. The medical records of women who were treated for PGHA in our department were reviewed, and data regarding the clinical findings and the treatment strategy for PGHA were analyzed. Thirty-four women who underwent treatment for PGHA were identified and divided into three groups according to the final procedure that achieved hemostasis: conservative management (CM) (n = 9), surgical management (SURG) (n = 15), and arterial embolization management (AEM) (n = 10). Regarding the clinical findings on initial evaluation, the shock index was significantly higher in the AEM group than in the CM or SURG group; and initial platelet count and fibrinogen level were significantly lower in the AEM group than in the CM group. There was no significant difference in any computed tomography (CT) finding among the three groups. In conclusion, this study clearly shows the difference in clinical findings among treatment strategies for PGHA. We suggest that the clinical findings of shock index, platelet count, and fibrinogen level together with CT findings are helpful and valuable for selecting the treatment strategy for PGHA.

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