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Koike J, Kono T, Takeda K, Yamada Y, Fujii C, Hirabayashi N. Data resource profile of an online database system for forensic mental health services. BMC Med Inform Decis Mak 2024; 24:47. [PMID: 38350972 PMCID: PMC10863232 DOI: 10.1186/s12911-024-02433-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 01/22/2024] [Indexed: 02/15/2024] Open
Abstract
This paper introduces a forensic psychiatry database established in Japan and discusses its significance and future issues. The purpose of this Database, created under the Medical Treatment and Supervision Act (MTSA) Database Project, is to improve the quality of forensic psychiatry treatment. It can collect monthly data on "basic information," "Orders and hospitalizations under the MTSA," "Treatment process," "Criminal and medical treatment history," and "problematic behavior in the unit." The online system has accumulated data on more than 8,000 items in 24 broad categories. Medical data are exported from the medical care assisting system of 32 designated inpatient facilities in XML format and then saved on USB memory sticks. The files are imported into the Database system client, which sends the data to the Database server via a virtual private network. This system minimizes errors and efficiently imports patient data. However, there is a limitation that it is difficult to set items that need to be analyzed to solve everyday clinical problems into the database system because they tend to change over time. By evaluating the effectiveness of the Database, and collecting appropriate data, it is expected to disseminate a wide range of knowledge that will contribute to the future development of mental health and welfare care.
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Affiliation(s)
- Junko Koike
- Department of Community Mental Health and Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1, Ogawahigashi, 187-8553, Kodaira, Tokyo, Japan.
| | - Toshiaki Kono
- Kawasaki City Inclusive Rehabilitation Center, 5-1, Nisshin-cho, Kawasaki Ward, 210-0024, Kawasaki, Kanagawa, Japan
| | - Koji Takeda
- Department of Forensic Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, 4-1-1, Ogawahigashi, 187-8551, Kodaira, Tokyo, Japan
| | - Yuji Yamada
- Department of Forensic Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, 4-1-1, Ogawahigashi, 187-8551, Kodaira, Tokyo, Japan
| | - Chiyo Fujii
- Department of Community Mental Health and Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1, Ogawahigashi, 187-8553, Kodaira, Tokyo, Japan
| | - Naotsugu Hirabayashi
- Department of Forensic Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, 4-1-1, Ogawahigashi, 187-8551, Kodaira, Tokyo, Japan
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Yamaguchi S, Ojio Y, Koike J, Matsunaga A, Ogawa M, Tachimori H, Kikuchi A, Kimura H, Inagaki A, Watanabe H, Kishi Y, Yoshida K, Hirooka T, Oishi S, Matsuda Y, Fujii C. Associations between readmission and patient-reported measures in acute psychiatric inpatients: a study protocol for a multicenter prospective longitudinal study (the ePOP-J study). Int J Ment Health Syst 2019; 13:40. [PMID: 31182972 PMCID: PMC6555753 DOI: 10.1186/s13033-019-0298-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Accepted: 05/28/2019] [Indexed: 02/06/2023] Open
Abstract
Background Several previous observational studies have reported the risk factors associated with readmission in people with mental illness. While patient-reported experiences and outcomes have become increasingly important in healthcare, only a few studies have examined these parameters in terms of their direct association with readmission in an acute psychiatric setting. This project will investigate multiple factors associated with readmission and community living in acute psychiatric patients in Japan. This study will primarily investigate whether patient-reported experiences at discharge, particularly quality of life (QoL), are associated with future readmission and whether readmission after the index hospitalization is associated with changes in patient-reported outcomes during the study period. Here, we describe the rationale and methods of this study. Methods This multicenter prospective cohort study is being conducted in 21 participating Japanese hospitals, with a target sample of approximately 600 participants admitted to the acute psychiatric ward. The study has four planned assessment points: time of index admission (T1), time of discharge (from the index admission) (T2), 6 months after discharge from the index admission (T3), and 12 months after discharge from the index admission (T4). Participants will complete self-reported measures including a QoL scale, a subjective disability scale, and an empowerment- and self-agency-related scale at each assessment point; additionally, service satisfaction, subjective view of need for services, and subjective relationships with family members will be assessed at T2 and T3. We will assess the participants’ hospitalization during the study period and evaluate several potential individual- and service-level factors associated with readmission and patient-reported experiences and outcomes. Multivariate analyses will be conducted to identify potential associations between readmission and patient-reported experiences and outcomes. Discussion The present study may produce evidence on how patient-reported experiences at discharge influence readmission and on the influence of readmission on the course of patient-reported outcomes from admission to community living after discharge. The study may contribute to improving care for both patients’ subjective views of their own health conditions and their community lives in an acute psychiatric setting. Trial registration University Hospital Medical Information Network—Clinical Trials Registry (UMIN-CTR) UMIN000034220. Registered on September 20, 2018. Electronic supplementary material The online version of this article (10.1186/s13033-019-0298-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sosei Yamaguchi
- 1Department of Community Mental Health & Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, 187-8553 Japan
| | - Yasutaka Ojio
- 1Department of Community Mental Health & Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, 187-8553 Japan
| | - Junko Koike
- 1Department of Community Mental Health & Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, 187-8553 Japan
| | - Asami Matsunaga
- 1Department of Community Mental Health & Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, 187-8553 Japan
| | - Makoto Ogawa
- 1Department of Community Mental Health & Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, 187-8553 Japan
| | - Hisateru Tachimori
- 2Translational Medical Center, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, 187-8553 Japan.,3The Institute for Global Health Policy Research, Bureau of International Health Cooperation, National Center for Global Health and Medicine, 1-21-1 Toyama Shinjuku-ku, Tokyo, 162-8655 Japan
| | - Akiko Kikuchi
- 1Department of Community Mental Health & Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, 187-8553 Japan
| | - Hiroshi Kimura
- 4Department of Psychiatry, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670 Japan.,Department of Psychiatry, Gakuji-kai, Kimura Hospital, 6-19 Higashi-honcho, Chuo-ku, Chiba, 260-8670 Japan
| | - Ataru Inagaki
- 6College of Education, Psychology and Human Studies, Aoyama Gakuin University, 4-4-25 Shibuya, Shibuya-ku, Tokyo, 150-8366 Japan
| | - Hiroyuki Watanabe
- Department of Psychiatry, Gakuji-kai, Kimura Hospital, 6-19 Higashi-honcho, Chuo-ku, Chiba, 260-8670 Japan.,7Division of Medical Treatment and Rehabilitation, Center of Forensic Mental Health, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8670 Japan
| | - Yoshiki Kishi
- 8Department of Psychiatry, Okayama Psychiatric Medical Center, 3-16 Shikata-Honmachi, Kita-ku, Okayama, Japan
| | - Koji Yoshida
- 9Department of Human Care and Support, Toyo University, 48-1 Oka, Asaka, 351-8510 Japan
| | - Takaaki Hirooka
- 10Department of Psychiatry, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami, Sagamihara, 252-0374 Japan
| | - Satoru Oishi
- 10Department of Psychiatry, Kitasato University School of Medicine, 1-15-1 Kitazato, Minami, Sagamihara, 252-0374 Japan
| | - Yasuhiro Matsuda
- 11Department of Psychiatry, Nara Medical University School of Medicine, 840 Shijo, Kashihara, 634-8521 Japan
| | - Chiyo Fujii
- 1Department of Community Mental Health & Law, National Institute of Mental Health, National Center of Neurology and Psychiatry, 4-1-1 Ogawa-Higashi, Kodaira, 187-8553 Japan
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Yamauchi Y, Aoki S, Koike J, Hanzawa N, Hashimoto K. Motor and cognitive development of children with Down syndrome: The effect of acquisition of walking skills on their cognitive and language abilities. Brain Dev 2019; 41:320-326. [PMID: 30503574 DOI: 10.1016/j.braindev.2018.11.008] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 11/10/2018] [Accepted: 11/16/2018] [Indexed: 12/31/2022]
Abstract
OBJECTIVE This study investigated the relationship between motor and cognitive/language development in children with Down syndrome (DS). We also tested the hypothesis that acquisition of walking skills facilitates later cognitive/language development. METHODS Participants were 156 children with DS who were less than 48 months old and had undergone a health checkup by medical doctors and received rehabilitation treatment between April 2013 and March 2017 in Yokohama, Japan. To assess their development, the Kyoto Scale of Psychological Development (KSPD) 2001 was used, which measures development in three subdomains: Posture-Motor (P-M), Cognitive-Adaptive (C-A), and Language-Social (L-S). To investigate the relationship between motor and cognitive/language development, partial correlation analyses were conducted that controlled for participants' age. To test the effect of achieving walking skills, regression analyses were conducted using only data from participants who took the KSPD at least twice and could not walk at the initial test. RESULTS P-M developmental age (DA) was significantly and positively correlated with both C-A DA and L-S DA in children 1-3 years old. The relationship strengthened with increased age. Acquisition of walking skills had a significant positive effect on both the C-A DA and L-S DA at the second test when controlling for the C-A DA and L-S DA at the first test and age at the second test. CONCLUSION Motor development was correlated with both cognitive and language development in young children with DS. Results also suggested that achievement of walking could facilitate later cognitive/language development in children with DS.
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Affiliation(s)
| | - Sayaka Aoki
- Center for Health and Environmental Risk Research, National Institute for Environmental Studies, Japan.
| | - Junko Koike
- Yokohama Rehabilitation Center in Hokubu Area for Children, Japan
| | - Naomi Hanzawa
- Yokohama Rehabilitation Center in Konan Area for Children, Japan
| | - Keiji Hashimoto
- Division of Rehabilitation Medicine and Developmental Evaluation Center, National Center for Child Health and Development, Japan
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Hasegawa H, Okabayashi K, Tsuruta M, Koike J, Funahashi K, Yokomizo H, Yoshimatsu K, Kan H, Yamada T, Ishida H, Ishibashi K, Saida Y, Enomoto T, Katsumata K, Koda K, Ochiai T, Sakamoto K, Ogawa S, Itabashi M, Kameoka S. Updated survival results of FACT trial: Multicenter phase II trial of neoadjuvant chemotherapy with mFOLFOX6 for stage II/III rectal cancer with a T3/T4 tumor. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx393.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
Objective: To evaluate the effectiveness of home-visit rehabilitation. Design: Before/after trial. Setting: Home-visit rehabilitation in Yokohama city. Subjects: Four hundred and seventy-five of 601 cases that received services during 1992, and 141 of 186 cases that received sequential visits. Interventions: Comprehensive home-visit rehabilitation. Main outcome measures: (1) Carer's response on change in care burden; (2) improvement in personal care performance. Results: Care burden decreased in 40.8% of 475 subjects. All of the 141 cases that received sequential visits gained proficiency in personal care. Conclusion: Improved performance of daily activities and reduction of care burden were found for most subjects after the rehabilitation visits.
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Affiliation(s)
- A. Hakuno
- Department of Rehabilitation Medicine, Yohohama Rehabiritation Center — 'Rainbow Kawasaki', Center for the Severely Physically Handicapped People in Kawasaki, 5-8-10 Higashi-Arima, Miyamaeku Kawasaki, Japan 216
| | - T. Ito
- Department of Rehabilitation Medicine, Yohohama Rehabiritation Center
| | - J. Koike
- Department of Rehabilitation Medicine, Yohohama Rehabiritation Center
| | - T. Matsuba
- Department of Community Service, Yokohama Rehabilitation Center, Yokohama
| | - S. Watanabe
- Department of Community Service, Yokohama Rehabilitation Center, Yokohama
| | - S. Fujii
- Department of Community Service, Yokohama Rehabilitation Center, Yokohama
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Shindo S, Sutou Y, Koike J, Saito Y, Song YH. Effect of surface cleaning on contact resistivity of amorphous GeCu2Te3 to a W electrode. ACTA ACUST UNITED AC 2016. [DOI: 10.1557/adv.2016.310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Ikeda T, Koike J, Kouda M, Inamoto A, Morota N. [Investigation of community support measures for patients with comorbid substance use disorder and psychotic disorder: nationwide survey of drug addiction rehabilitation centers]. Nihon Arukoru Yakubutsu Igakkai Zasshi 2014; 49:340-355. [PMID: 25831949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In psychiatric care practice, patients are often seen who have difficulty with their social lives due to protracted psychiatric symptoms despite years without drug abuse. The difficulty of dealing with such cases and the lack of preparedness of the legal system leave circumstantial care as the only option. Western.countries have recently begun using the name 'concurrent disorder' as a diagnosis for patients deemed unable to recover solely through such treatment for drug addiction, signifying the presence of both a substance use disorder (SUD) and a mental health disorder. Various assessment and intervention methods are being investigated, and many studies have been reported. Based on the hypothesis that Drug Addiction Rehabilitation Center (DARC) are partly involved in supporting those with psychotic concurrent disorders (PSCD) in Japan, we conducted a survey to clarify the actual support for PSCD patients at DARC and the challenges they face. Surveys were administered to DARC-related institutions all over Japan (44 governing organizations and 66 institutions). Complete responses from 86 full-time employees and 445 DARC users were analyzed. DARC users were divided into two groups: psychiatric concurrent disorders (PSCD group, n = 178) and those without such symptoms (SUD group, n = 267), with the PSCD group accounting for 40% of the DARC users surveyed. Compared to the SUD group, the PSCD group was significantly less satisfied with their lifestyle and interpersonal relations at the DARC and a significantly higher proportion of the PSCD group requested assistance in communicating with others. When employees were presented with a hypothetical PSCD case and asked what was needed to deal with it, some responses were, "an institution that can treat both drug addiction and other mental health disorders," "a psychiatric care institution that provides 24-hour care," and "sufficient manpower and training." In the future, a treatment system must be established based on public medical institutions with a dedicated PSCD program that can provide medical care under legal observation.
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Yokomizo H, Yoshimatsu K, Koike J, Funahashi K, Kan H, Yamada T, Ishida H, Ishibashi K, Saida Y, Enomoto T, Katsumata K, Hasegawa H, Koda K, Ochiai T, Sakamoto K, Nakayama M, Naritaka Y, Ogawa S, Itabashi M, Kameoka S. Multicenter Phase Ii Trial of Neoadjuvant Chemotherapy with Mfolfox6 for Stage Ii/Iii Rectal Cancer with a T3/T4 Tumor Fact Trial. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu333.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kurasawa M, Nishikido T, Koike J, Tominaga SI, Tamemoto H. Gas-forming liver abscess associated with rapid hemolysis in a diabetic patient. World J Diabetes 2014; 5:224-229. [PMID: 24748935 PMCID: PMC3990319 DOI: 10.4239/wjd.v5.i2.224] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 03/06/2014] [Accepted: 03/18/2014] [Indexed: 02/05/2023] Open
Abstract
We experienced a case of liver abscess due to Clostridium perfringens (CP) complicated with massive hemolysis and rapid death in an adequately controlled type 2 diabetic patient. The patient died 6 h after his first visit to the hospital. CP was later detected in a blood culture. We searched for case reports of CP septicemia and found 124 cases. Fifty patients survived, and 74 died. Of the 30 patients with liver abscess, only 3 cases survived following treatment with emergency surgical drainage. For the early detection of CP infection, detection of Gram-positive rods in the blood or drainage fluid is important. Spherocytes and ghost cells indicate intravascular hemolysis. The prognosis is very poor once massive hemolysis occurs. The major causative organisms of gas-forming liver abscess in diabetic patients are Klebsiella pneumoniae (K. pneumoniae) and Escherichia coli (E. coli). Although CP is relatively rare, the survival rate is very poor compared with those of K. pneumoniae and E. coli. Therefore, for every case that presents with a gas-forming liver abscess, the possibility of CP should be considered, and immediate aspiration of the abscess and Gram staining are important.
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Ikeda T, Koike J, Morita N, Yamamoto K, Aikawa Y, Matsumoto T, Inamoto A. [A study of the rehabilitation support system for illegal substance use disorder patients from the viewpoint of the designated hospital. 4 case studies focusing on judicial treatment and drug urine monitoring]. Nihon Arukoru Yakubutsu Igakkai Zasshi 2014; 49:45-56. [PMID: 24818358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
This study was designed to reveal the current status of the rehabilitation support system for patients with Illegal Substance Use Disorder (ISUD). From among 465 patients who had been admitted to a psychiatric hospital in Tokyo within the past 10 years by order of the prefectural governor, 65 patients with ISUD were selected for inclusion in this study. Based on whether or not the person was arrested at the time of discharge, whether or not urine drug monitoring was ordered, and the results of the monitoring, each subject was classified into one of the following four types: 1) Arrested; 2) Not arrested and no urine drug monitoring; 3) Not arrested and positive urine drug monitoring results; and 4) Not arrested and negative urine drug monitoring results. In Group 1, every subject underwent urine drug monitoring prior to an involuntary examination; however, even though 10 percent of the subjects in this study were found to have positive results on urine drug monitoring, none of them were arrested. Moreover, 40 percent of the study subjects were not subjected to urine drug monitoring, and about 30 percent of non-arrested subjects were shown not to have used any illegal substances. Based on these results, it appears to be ideal for patients in Group 1 to apply to a diversion program, followed by medical treatment for addiction. To avoid the elimination of patients from medical services due to the vagueness of the classifications, whether or not judicial administration is required at the time of police intervention should be clearly and appropriately clarified for patients in Groups 2 and 3. Patients in Group 4 may experience a relapse of psychiatric symptoms, even if they do not use illegal substances; therefore, it is necessary for designated hospitals to perform medical treatment interventions responsibly for both endogenous psychosis and substance abuse, and to collaborate with appropriate social support facilities within the community regarding the medical discharge of such patients.
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Abstract
PURPOSE We outline the development of a reliable model of obstructive uropathy in fetal lambs highlighting our understanding of the critical time points for interventions and the variability of any such model. We identify some discoveries that may have clinical implications. METHODS The model requires 60-day-gestation fetal lambs. In lambs, glomerulogenesis is complete by 90 days gestation. (Term is 145 days.) The ability to develop a reliable method of creating bladder outlet obstruction in females, ligating both the urethra and urachus was critical. The lambs are bred to an accuracy of ±24 h. RESULTS Creating the model at 50-60 days gestation, produces different expressions of renal dysplasia in groups of lambs undergoing identical interventions at the same stage of gestation. Early complete urethral obstruction can produce the Potter phenotype. An appropriately timed vesico-amniotic shunt preserves renal development, producing a shrunken, non-compliant bladder. Shunting the normal fetal bladder at 80 days gestation produces a similar bladder. Provision of a low-pressure valve in the shunt preserves bladder development and compliance. Using a high-pressure shunt produces results similar to non-shunted lambs. DISCUSSION We developed a reliable animal model for obstructive uropathy. Being alert to peripheral results can lead to new findings.
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Affiliation(s)
- K C Pringle
- Department of Obstetrics and Gynaecology, School of Medicine and Health Sciences, University of Otago, Wellington, P.O. Box 7343, Wellington South, 6242, Wellington, New Zealand,
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Yuhara H, Steinmaus C, Corley D, Koike J, Igarashi M, Suzuki T, Mine T. Meta-analysis: the risk of venous thromboembolism in patients with inflammatory bowel disease. Aliment Pharmacol Ther 2013; 37:953-62. [PMID: 23550660 DOI: 10.1111/apt.12294] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [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: 12/30/2012] [Revised: 01/26/2013] [Accepted: 03/11/2013] [Indexed: 12/16/2022]
Abstract
BACKGROUND Inflammatory bowel disease (IBD), which includes Crohn's disease (CD) and ulcerative colitis (UC), is a systemic disorder that predominantly affects the bowels but is also associated with venous thromboembolism (VTE). AIM To provide a quantitative assessment of the association of IBD with venous thromboembolism risk and to explore the possible sources of heterogeneity in the current literature, a meta-analysis of case-control and cohort studies was conducted. METHODS Studies were identified by a literature search of the PubMed and Scopus databases (from inception inclusive 31 December 2012) for English language studies. Summary relative risks (RRs) with 95% confidence intervals (CIs) were calculated with fixed- and random-effects models. Several subgroup analyses were performed to explore potential study heterogeneity and bias. RESULTS Eleven studies met our inclusion criteria. The summary RR for deep venous thromboembolism (DVT) and pulmonary embolism (PE) comparing subjects both with and without IBD was 2.20 (95% CI 1.83-2.65). After adjusting for obesity and smoking, summary relative risks near 2.0 were seen for venous thromboembolism in both UC and CD patients. CONCLUSION This meta-analysis showed that inflammatory bowel disease is associated with an approximately two-fold increase in the risk of venous thromboembolism.
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Affiliation(s)
- H Yuhara
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Kanagawa, Japan
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Takemoto N, Koyanagi A, Koike J, Yamamoto H. An accessory thyroid gland that presented tumor-like images. J Med Ultrason (2001) 2013; 40:163-8. [PMID: 27277107 DOI: 10.1007/s10396-012-0402-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Accepted: 08/16/2012] [Indexed: 11/25/2022]
Abstract
A 26-year-old woman presented with right breast pain and itching. Incidentally, a firm, non-tender, movable mass (3 cm in diameter) located in the lower right part of the neck was identified by palpation. Ultrasonography revealed a clearly demarcated dumbbell-shaped mass with homogenous hypo- (cranial side) and hyper-echogenicity (caudal side) compared with the thyroid gland. Computed tomography scan and magnetic resonance imaging presented images that were different from thyroid gland substance. The right thyroid lobe was strongly compressed by the mass. Hyperparathyroidism was ruled out by laboratory testing. The patient solicited resection of the mass despite recommendations for core needle biopsy, and it was removed surgically. The mass was surrounded by a thin capsule and was not connected with the thyroid gland. Pathological examinations revealed normal thyroid gland tissue. The final diagnosis was an accessory thyroid gland. Accessory thyroid glands should be considered as a possible diagnosis when nodules around the main thyroid gland are encountered.
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Affiliation(s)
- Nobuyuki Takemoto
- Department of Breast and Endocrine Surgery, Japan Medical Alliance Higashi Saitama General Hospital, 5-517 Yoshino, Satte, Saitama, 340-0153, Japan.
| | - Ai Koyanagi
- Department of Global Health Policy, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Junko Koike
- Clinical Laboratory Medicine, Japan Medical Alliance Higashi Saitama General Hospital, 5-517 Yoshino, Satte, Saitama, 340-0153, Japan
| | - Hiroshi Yamamoto
- Geriatric Health Service Facility (COSMOS), Japan Medical Alliance Yokohama Stroke and Brain Center, 1-2-1 Takigashira, Isogoku, Yokohama, Kanagawa, 235-0012, Japan
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Suzuki T, Matsushima M, Tsukune Y, Fujisawa M, Yazaki T, Uchida T, Gocyo S, Okita I, Shirakura K, Sasao K, Saito T, Sakamoto I, Igarashi M, Koike J, Takagi A, Mine T. Double-balloon endoscopy versus magnet-imaging enhanced colonoscopy for difficult colonoscopies, a randomized study. Endoscopy 2012; 44:38-42. [PMID: 22143991 DOI: 10.1055/s-0030-1256875] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND STUDY AIMS Studies have estimated that failure of cecal intubation occurs with conventional colonoscopy in up to 10 % of cases. Double-balloon endoscopy (DBE) systems, magnetic endoscope imaging (MEI), and transparent cap have been shown to improve success rates for colonoscopy. This study evaluated the utility of DBE for complete examination of the colon compared with MEI plus cap (MEI-Cap) after incomplete or technically difficult colonoscopy in a randomized comparative manner. PATIENTS AND METHODS A total of 94 patients with incomplete or technically difficult colonoscopy were randomly assigned to receive either DBE (n = 47) or colonoscopy with MEI-Cap (n = 47). The primary end point was cecal intubation rate within 30 minutes. Secondary end points included intubation time, pain score using a visual analog scale, abdominal pressure attempts, doses of sedative medication, and changes in patient position during colonoscopy. RESULTS Patient characteristics were comparable in both groups. Cecal intubation rate within 30 minutes was significantly higher for DBE (45 /47, 95.7 %) than for MEI-Cap (34 /47, 72.3 %) (P = 0.0049). Mean time to reach the cecum was significantly lower in the DBE group (13.0 ± 5.3 minutes) than in the MEI-Cap group (16.4 ± 4.8 minutes; P = 0.0003). No complications were encountered in either group. CONCLUSION DBE is more useful for complete examination of the colon than MEI-Cap in patients with incomplete or technically difficult colonoscopy.
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Affiliation(s)
- T Suzuki
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Tokai University School of Medicine, Isehara, Kanagawa, Japan.
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Koike J, Oluzzi DE, Meshii M, Okamoto PR. Temperature Dependence of Amorphization above 10K in the CuTi Intermetallic Compound Under Electron Irradiation. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-74-425] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
AbstractThe critical dose required to amorphize the crystalline compound CuTi during irradiation with 1 MeV electrons has been investigated from 10 to 288 K. The results show that above a critical temperature (Tc) of about 185 K, CuTi remains crystalline and only defect clusters are formed. Below Tc, amorphization occurs with no observable cluster formation. The critical dose for amorphization was found to be temperature dependent below Tc: as the irradiation temperature increases, a higher dose is required to induce amorphization. This observation supports the concept that Tc corresponds to the vacancy migration temperature. Below Tc, interstitial migration may contribute to the observed reduction in the amorphization rate with increasing temperature.
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Koike J, Okamoto PR, Rehn LE, Bhadra R, Grimsditch MH, Meshh M. Irradiation-Induced Amorphization and Elastic Shear Instability in Intermetallic Compounds. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-157-777] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTPreviously we reported a substantial (∼ 50 %) decrease in shear modulus prior to amorphization in Kr irradiated Zr3Al, and proposed that amorphization is triggered when the crystalline lattice becomes unstable against shear stress. In the present work, the relation between amorphization and shear elastic instability has been investigated in two additional compounds (FeTi and NiAl) during room temperature irradiation with 1.7-MeV Kr+. A shear modulus was measured using Brillouin scattering; structural information was obtained in situ in a high voltage electron microscope interfaced to a tandem accelerator.During irradiation of FeTi, chemical disordering and a large (∼40 %) decrease of shear modulus were observed, and an amorphous phase developed subsequently. In contrast, NiAl remained crystalline and chemically ordered during irradiation, and exhibited only a ∼ 10 % decrease in shear modulus. Hence, these two results provide further support that a shear instability triggers irradiation-induced amorphization. The shear instability mechanism may also apply to other solid-state amorphization techniques, e.g. hydrogen charging and mechanical deformation.
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Abstract
ABSTRACTThermal cycling was performed in Al-lmo%Si thin films deposited on Si wafers. After a given number of cycling between room temperature and 723 K, residual stress was measured at room temperure. Residual stress was found to increase with increasing the cycling number up to the 4th cycle, followed by further a continuous decrease by further cycling. The intial increase was found to be related to the increase of lattice dislcocations and their tangling. The following decrease was caused by crack formation along grain boundaties or by film delamination in some cases.
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Harima H, Koike J, Shirai A. [Current status of diagnosis of acute mental disorders at the psychiatric emergency unit]. Seishin Shinkeigaku Zasshi 2010; 112:377-384. [PMID: 20552758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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Koike J, Morita N, Harima H, Nakatani Y. [Actual condition of involuntary admission by order of the prefectural governor: focus on the effects of the Medical Treatment and Supervision Act]. Seishin Shinkeigaku Zasshi 2009; 111:1345-1362. [PMID: 20095438] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A survey was conducted involving 664 individuals admitted to a public psychiatric hospital in Tokyo Prefecture between July 15, 2004 and July 14, 2007 as a result of involuntary admission by order of the prefectural governor (hereafter, involuntarily admitted patients). The characteristics of patients with a focus on the effects of the Medical Treatment and Supervision Act were investigated in 656 patients, excluding eight patients for whom information at the time of involuntary admission was unclear. The proportion of patients in the present survey who had been reported by prosecutors was markedly low compared to nationwide and previous surveys. This was thought to be a result of the fact that the proportion of patients reported by the police, which tend to include emergency cases, was high due to the characteristics of the present hospital as well as the regional characteristics of Tokyo Prefecture. The characteristics of involuntarily admitted patients tended to be similar to those observed in previous surveys on involuntarily admitted patients at the present and other hospitals in Tokyo Prefecture. Comparison of the characteristics of involuntarily admitted patients and problem behaviors that instigated admission before and after implementation of the Medical Treatment and Supervision Act showed no clear differences, indicating that the act had no marked effect on involuntary admission by order of the prefectural governor. In addition, only a small proportion of patients with problem behaviors corresponding to actions described in the Medical Treatment and Supervision Act were reported by prosecutors, suggesting that such patients were mostly reported by the police. In cases where patients faced involuntary admission by order of the prefectural governor after being reported by the police, the prosecutor may have either been unaware of the patient or, if aware, had not filed a petition. Issues may include clues for investigation in addition to the roles of judicial police officers and prosecutors in investigation procedures in the former case, and the discretion of prosecutors in the latter case. While opinions on the appropriateness of actively applying the Medical Treatment and Supervision Act to these patients vary depending on the interpretation of the act's legal characteristics, it appeared that involuntary admission by order of the prefectural governor was at present not clearly distinguished from the Medical Treatment and Supervision Act. Involuntary admission by order of the prefectural governor and the Medical Treatment and Supervision Act are systems that have significant implications for patients with mental disorders, who are likely to cause injury to themselves or others. In order to facilitate the provision of appropriate medical care, it is important to clarify the systematic relationships within the legal system.
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Affiliation(s)
- Junko Koike
- Graduate School of Comprehensive Human Sciences, University of Tsukuba
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Koike J, Morita N, Nakatani Y. [A nationwide questionnaire survey of medical experts in mental health evaluation]. Seishin Shinkeigaku Zasshi 2009; 111:10-23. [PMID: 19301591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A nationwide questionnaire survey was conducted to clarify the current status of medical experts in mental health evaluation and their needs (recovery rate: 66.6%). The data were simply tabulated and then statistically analyzed with respect to past experiences of serving as expert witnesses or judges as defined by the Medical Treatment and Supervision Act and past clinical experience. The results showed that 201 respondents (53.0%) had served as medical experts an average of 2.8 +/- 2.4 times, while 173 respondents (45.6%) had not served as such experts, and that 284 respondents (74.9%) had served as judges an average of 3.0 +/- 2.5 times, while 86 respondents (22.7%) had not served as judges. Although about 70% of the respondents who had served as expert witnesses felt that their experiences were burdensome, mostly due to time-related concerns, most had favorable views of the legal process. More than 70% of the respondents indicated that they would continue to serve as expert witnesses despite their sense of burden, thus suggesting a correlation between a past experience of serving as an expert witness and a willingness to do so again in the future. Furthermore, the results indicate that medical experts in mental health evaluation who have not served as expert witnesses are more hesitant, and since physicians employed at institutions for forensic psychiatric examination are more likely to serve as expert witnesses, a relatively small group of medical experts in mental health evaluation repeatedly serve as expert witnesses. On the other hand, when compared to serving as medical experts, serving as judges was psychologically more stressful for many respondents. Since physicians are not used to being judges, they may experience feelings of resistance or burden. Also, judges are somewhat bound by expert testimony, and the fact that there is no written policy for questioning testimony adds to their stress. Therefore, it will be necessary to clarify the positioning of expert evidence and the decisions made by judges. What medical experts in mental health evaluation needed to improve their knowledge varied depending on the type and duration of work and clinical experience. Therefore, it is necessary to provide information matching the experience, skills, and information related to the practical aspect of the Medical Treatment and Supervision Act. Moreover, the results suggest the necessity for medical experts in mental health evaluation to acquire a wide range of expert knowledge in forensic psychiatry beyond that required for the Medical Treatment and Supervision Act.
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Affiliation(s)
- Junko Koike
- Graduate School of Comprehensive Human Sciences, University of Tsukuba
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Funahashi K, Koike J, Okamoto K, Kurihara A, Saito N, Ushigome M, Shirasaka K, Arai K, Teramoto T. 384 POSTER Peranal rectal dissection (PARD)-technique to avoid incomplete TME at total laparoscopic low anterior resection. Eur J Surg Oncol 2006. [DOI: 10.1016/s0748-7983(06)70819-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Okuse C, Yotsuyanagi H, Yamada N, Ikeda H, Takahashi H, Suzuki M, Kondo S, Kimura K, Koike J, Itoh F. Successful treatment of hepatitis B virus-associated membranous nephropathy with lamivudine. Clin Nephrol 2006; 65:53-6. [PMID: 16429843 DOI: 10.5414/cnp65053] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
We present a case of chronic hepatitis B with membranous nephropathy, that was improved by lamivudine treatment. A 37-year-old man was admitted to our hospital for the evaluation of proteinuria. He was diagnosed as having chronic glomerulonephritis associated with chronic hepatitis B. Histopathological findings of the renal biopsy specimen indicated membranous nephropathy. He suffered from nephrotic syndrome associated with leg edema, which was parallel to the exacerbation of hepatitis. Lamivudine was started for the treatment of hepatitis, which caused the disappearance of serum hepatitis B virus DNA and the normalization of ALT level in 4 weeks. Additionally, proteinuria disappeared 120 weeks after the treatment was started. Lamivudine treatment may remit HBV-associated nephropathy.
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Affiliation(s)
- C Okuse
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, St. Marianna University School of Medicine, 2-16-1 Sugao, Miyamae-ku, Kawasaki 216-8511, Japan.
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Sakamoto I, Watanabe S, Sakuma T, Igarashi M, Koike J, Shirai T, Sadahiro S, Nakamura M, Mine T. Intramucosal adenocarcinoma of the appendix: how to find and how to treat. Endoscopy 2003; 35:785-7. [PMID: 12929032 DOI: 10.1055/s-2003-41577] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
A colonoscopic examination of a 58-year-old man revealed a small elevated lesion inside the orifice of the appendix. Using a polypectomy snare, a nodular polypoid lesion with a diameter of ca. 20 mm was removed from the lumen of the appendix. Histopathology showed that it was a well-differentiated adenocarcinoma. This is the first report of an intramucosal adenocarcinoma of the appendix diagnosed preoperatively; laparoscopy-assisted colectomy with a D2 lymph-node dissection was carried out. Endoscopists should consider an appendiceal tumor when an erosion, elevation, or deformity is seen in the head of the cecum.
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Affiliation(s)
- I Sakamoto
- Division of Gastroenterology and Hepatology, Dept. of Internal Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.
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Tsukada H, Koike J, Osada H. [Clinical outcome of epithelial tumors of the thymus]. Kyobu Geka 2002; 55:936-41. [PMID: 12391689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
OBJECTIVE AND METHODS We retrospectively reviewed treatment and clinical outcome of thymic epithelial tumors of 64 patients over a 20-year period. Clinical staging of the tumor was done by according to Masaoka classification. Histological diagnosis of the tumors was done by according to the second edition of the WHO histologic classification system for thymic epithelial tumors. Survival rate was calculated after Kaplan-Meire method. RESULTS Median age of patients was 53.7 years (ranged from 16 to 81). There were 30 men and 34 women. Eighteen patients had auto-immuno diseases. Sixty-two patients underwent surgery. In 57 patients resection was complete (extended thymo-thymectomy), but in the other five incomplete. The operative approach was median sternotomy in 51 patients and video-assisted thoracoscopic surgery in 6. Stage II to IV patients had postoperative mediastinal irradiation. Stage III to IV patients had postoperative cisplatin (CDDP) based chemotherapy. Inoperable patients were treated by chemo-radiotherapy. There were 42 stage I, 7 stage II, 11 stage III, 3 stage IV a, 1 stage IV b. The 5-year/10-year survival rates were 93%/89%, 71%/71%, 68.5%/--in patients with stage I, II and III. There were 5 type A tumors, 8 type AB tumors, 11 type B1 tumors, 11 type B2 tumors, 9 type B3 tumors, 11 type C tumors, the respect 5-year survival rates were 100%, 100%, 87.5%, 60%, 85.7% and 90%. Masaoka stage II to IV patients classified in B2, B3 and C type except one case. CONCLUSION Histologic type B2, B3 and C tumors may reflect the invasive nature. Masaoka staging system and the WHO histologic classification may help the assessment and treatment of patients with thymic epithelial tumor.
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Affiliation(s)
- H Tsukada
- Division of Chest Surgery, Department of Surgery, St. Marianna University School of Medicine, Kawasaki, Japan
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Koike J, Yamaguchi Y, Horita S, Tanabe K, Fuchinoue S, Toma H, Nihei H. Clinical and pathological assessment of acute vascular rejection in the transplant kidney. Clin Transplant 2002; 15 Suppl 5:41-4. [PMID: 11791794 DOI: 10.1034/j.1399-0012.2001.0150s5041.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Acute vascular rejection (AVR) in kidney transplantation is the most important factor influencing graft prognosis. We focus on patients whose grafts were lost because of AVR, and assessed their clinical characteristics and histological findings of biopsied renal grafts. Biopsied specimens exhibited AVR in 43 patients who underwent kidney transplantation in the Kidney Center of Tokyo Women's Medical University from 1995 to 1999. In the follow-up from 1 to 5 yr (median: 2.5 yr) we classified these patients into three groups: favourable prognosis group (FPG), relatively poor prognosis group (RPPG) and poor prognosis group (PPG). Light microscopic study for histological grading of acute rejection according to the Banff scheme and detection of the C4d complement deposition on peritubular capillaries by the immunofluorescence method were performed. Based on the results, the donors of RPPG and PPG were significantly older than those of FPG, and all factors of acute rejection according to the Banff scheme were not statistically significantly different among the three groups. However, an acute tubular injury mimicking acute tubular necrosis (ATN) was observed in the biopsy specimens from PPG. In conclusion, an older donor is a risk factor of poor prognosis of the graft with AVR, and acute tubular injury mimicking ATN is one of the important features that enables the prediction of graft failure originating from AVR in kidney transplantation.
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Affiliation(s)
- J Koike
- Department of Pathology, St Marianna University, School of Medicine, Kawasaki, Kanagawa, Japan
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Chino N, Ishigami S, Akai M, Liu M, Okajima Y, Koike J, Kobayashi K. Current status of rehabilitation medicine in Asia: a report from New Millennium Asian Symposium on Rehabilitation Medicine. J Rehabil Med 2002; 34:1-4. [PMID: 11900256 DOI: 10.1080/165019702317242631] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
With the aim of promoting rehabilitation medicine in Asian countries, where the number of persons with disability occupies a significant proportion in the world, New Millennium Asian Symposium on Rehabilitation Medicine was held in February 2001 in Tokyo, under the sponsorship of the Japanese Association of Rehabilitation Medicine. Twenty-three guest speakers from 14 Asian countries and regions participated in the 2-day meeting. With a structured questionnaire that was sent to the participants beforehand, demographic data related to rehabilitation practice and information on training and certification in rehabilitation medicine in the participating countries were collected, and presented at the meeting. Based on these data, the current status of rehabilitation medicine in Asia was summarized. The symposium marked an important step forward for the promotion of rehabilitation medicine in Asia.
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Affiliation(s)
- Naoichi Chino
- Department of Rehabilitation Medicine, Keio University School of Medicine, Tokyo, Japan
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Abstract
PURPOSE The cause of cyst production in renal dysplasia is uncertain. The authors hypothesized that different patterns of renal dysplasia result from variations in the timing and site of the urinary tract obstruction. METHODS The authors operated on fetal lambs at 50 and 60 days' gestation. Male lambs underwent urethral and urachal ligation and female lambs unilateral ureteric ligation. They were delivered by cesarean section at 145 days' gestation and killed. RESULTS Of 12 lambs operated on at 50 days' gestation, 4 survived. Of 26 lambs operated on at 60 days, 21 survived. The authors identified 3 types of dysplastic kidneys. Type A, fibrotic kidneys (2.2 g) with no cysts and interstitial fibrosis. There were reduced numbers of proximal tubules, but distal tubules and collecting ducts persisted. (50-day obstruction, n = 5 kidneys); type B, Sponge-like kidneys (37g): these had large cysts with minimal interstitial fibrosis. (87% of 60-day uretheral and urachal ligation model n = 12 kidneys); Type C, Small kidneys (4.8 g) with no large cysts (60-day Ureteric ligation model n = 7 kidneys). CONCLUSION The authors produced 3 different types of renal dysplasia by creating urinary tract obstruction at different sites and gestational ages.
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Affiliation(s)
- H Kitagawa
- St Marianna University School of Medicine, Division of Pediatric Surgery, 2-16-1, Sugao, Miyamae-ku, Kawasaki-shi, 216-8511, Japan
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Koike J. [The view on the education of space science from Young Astronauts Club (YAC)]. Biol Sci Space 2001; 15:212-5. [PMID: 11997610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- J Koike
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology, Yokohama, Japan
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Koike J. [The ecology of microorganisms in closed environments--existing state and problems]. Biol Sci Space 2001; 15:238. [PMID: 11997621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- J Koike
- Tokyo Institute of Technology, Graduate School of Bioscience and Biotechnology
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Abstract
A 41-year-old female presented with a meningioma of the craniocervical junction manifesting as tetraparesis and vesicourethral dysfunction. Neuroradiological examinations showed a homogeneous enhanced mass lesion extending from the foramen magnum to the upper aspect of the second vertebral body. The tumor was totally removed via the transcondylar fossa approach, which is one type of the lateral approach. She was discharged without neurological deficits. The transcondylar approach is often utilized for lesions that occupy the ventral portion around the foramen magnum. The transcondylar fossa approach, a variation of the transcondylar approach, is a refined technique which obtains a closely similar surgical working field. Use of the transcondylar fossa approach remains controversial when treating patients with little brain stem dislocation, a small condylar fossa, and a protruding occipital condyle, but the approach can easily be converted to the transcondylar approach. The transcondylar fossa approach could become a standard method to access the craniocervical junction.
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Affiliation(s)
- Y Tange
- Department of Neurosurgery, Tokyo Metropolitan Health and Medical Treatment Corporation, Tamananbu Regional Hospital, Tama, Tokyo, Japan
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Miyano S, Maeyama S, Iwaba A, Ogata S, Koike J, Kishi M, Uchikoshi T. A clinicopathological study of acute hepatitis in heavy drinkers, unrelated to hepatitis A, B, or C viruses. Alcohol Clin Exp Res 2001. [PMID: 11410746 DOI: 10.1111/j.1530-0277.2001.tb02422.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND There are six histological classifications of alcoholic liver disease (ALD) in Japan. However, it is unclear whether all cases of the disease conform to these criteria. This study investigated the clinicopathological features of eight histologically unusual cases of ALD. METHODS The characteristic features of alcohol drinking behavior, subjective and objective symptoms, laboratory data on admission, and progress after admission were analyzed for eight patients with acute-onset hepatitis. RESULT The eight patients showed histologically acute hepatitis, with much spotty necrosis that contained granular ceroid pigment by Kupffer cells, which indicated acute parenchymal damage of the liver, but with no Mallory bodies and unremarkable intrasinusoidal neutrophilic infiltration. The only etiological factor for all the cases was habitual alcohol consumption, with increased consumption just before the onset of symptoms. In five cases that were tested, the patients were negative for hepatic viral markers, which included hepatitis G virus RNA and TT virus DNA. CONCLUSION Some cases of ALD may not conform to the current histological classifications in either Japan or Western countries. It seems natural to consider that these cases are developed by other, unknown causes that overlap with ALD rather than as a result of damage from alcoholic overload.
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Affiliation(s)
- S Miyano
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
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Koike J, Yamaguchi Y, Horita S, Tanabe K, Fuchinoue S, Toma H, Agishi T. Super long-term surviving two renal grafts with severe arteriolosclerosis and glomerulosclerosis. Clin Transplant 2001; 14 Suppl 3:37-41. [PMID: 11092352 DOI: 10.1034/j.1399-0012.2000.0140s3037.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Two long-term renal transplant survivors, for about 20 yr, with unusual histological features in the allograft kidney are reported. In both cases, marked hyalinosis was observed in the arterioles of the transplanted kidney, despite never having been administered cyclosporine or tacrolimus. The cause remains unknown at the present time, but we think that the changes could be multifactorial in origin, including due to aging of the graft, hypertension, hyperlipidemia and chronic rejection. We conclude that histological analysis of the allograft kidney must be performed in long-term renal transplant survivors, in order to understand the histological changes in the chronic phase after kidney transplantation and to predict the prognosis of the graft.
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Affiliation(s)
- J Koike
- Department of Pathology, St. Marianna University School of Medicine, Japan
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Miyano S, Maeyama S, Iwaba A, Ogata S, Koike J, Kishi M, Uchikoshi T. A clinicopathological study of acute hepatitis in heavy drinkers, unrelated to hepatitis A, B, or C viruses. Alcohol Clin Exp Res 2001; 25:69S-74S. [PMID: 11410746 DOI: 10.1097/00000374-200106001-00016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND There are six histological classifications of alcoholic liver disease (ALD) in Japan. However, it is unclear whether all cases of the disease conform to these criteria. This study investigated the clinicopathological features of eight histologically unusual cases of ALD. METHODS The characteristic features of alcohol drinking behavior, subjective and objective symptoms, laboratory data on admission, and progress after admission were analyzed for eight patients with acute-onset hepatitis. RESULT The eight patients showed histologically acute hepatitis, with much spotty necrosis that contained granular ceroid pigment by Kupffer cells, which indicated acute parenchymal damage of the liver, but with no Mallory bodies and unremarkable intrasinusoidal neutrophilic infiltration. The only etiological factor for all the cases was habitual alcohol consumption, with increased consumption just before the onset of symptoms. In five cases that were tested, the patients were negative for hepatic viral markers, which included hepatitis G virus RNA and TT virus DNA. CONCLUSION Some cases of ALD may not conform to the current histological classifications in either Japan or Western countries. It seems natural to consider that these cases are developed by other, unknown causes that overlap with ALD rather than as a result of damage from alcoholic overload.
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Affiliation(s)
- S Miyano
- Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
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Saitoh T, Moriwaki J, Koike J, Takagi A, Miwa T, Shiokawa K, Katoh M. Molecular cloning and characterization of FRAT2, encoding a positive regulator of the WNT signaling pathway. Biochem Biophys Res Commun 2001; 281:815-20. [PMID: 11237732 DOI: 10.1006/bbrc.2001.4421] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
FRAT1 positively regulates the WNT signaling pathway by stabilizing beta-catenin through the association with glycogen synthase kinase-3beta. Here, we have cloned FRAT2 cDNAs, spanning the complete coding sequence, from a human fetal lung cDNA library. FRAT2 encoded 233 amino-acid protein, which showed 77.3% total amino-acid identity with FRAT1. FRAT2 and FRAT1 were more homologous in the acidic domain (96% identity), the proline-rich domain (92% identity), and the GSK-3beta binding domain (100% identity). The FRAT2 gene was mapped to human chromosome 10q24.1. The FRAT2 mRNA of 2.4-kb in size was relatively highly expressed in MKN45 (gastric cancer), HeLa S3 (cervical cancer), and K-562 (chronic myelogenous leukemia). Xenopus axis duplication assay revealed that the wild-type FRAT2 mRNA, but not the mutant FRAT2 mRNA lacking the acidic domain and the proline-rich domain, has the capacity to induce the secondary axis. These results indicate that FRAT2, just like FRAT1, functions as a positive regulator of the WNT signaling pathway. Thus, up-regulation of FRAT2 in human cancer might be implicated in carcinogenesis through activation of the WNT signaling pathway.
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Affiliation(s)
- T Saitoh
- Genetics and Cell Biology Section, Genetics Division, National Cancer Center Research Institute, Tsukiji 5-chome, Tokyo, Chuo-ku, 104-0045, Japan
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Koike J. [The view on the education of space science from Young Astronauts Club]. Biol Sci Space 2001; 15:52-3. [PMID: 12101378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Affiliation(s)
- J Koike
- Tokyo Institute of Technology, Yokohama, Japan.
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Moriwaki J, Kajita E, Kirikoshi H, Koike J, Sagara N, Yasuhiko Y, Saitoh T, Hirai M, Katoh M, Shiokawa K. Isolation of Xenopus frizzled-10A and frizzled-10B genomic clones and their expression in adult tissues and embryos. Biochem Biophys Res Commun 2000; 278:377-84. [PMID: 11097845 DOI: 10.1006/bbrc.2000.3808] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Frizzled genes, encoding WNT receptors, play key roles in cell fate determination. Here, we isolated two Xenopus frizzled genes (Xfz10A and Xfz10B), probably reflecting pseudotetraploidy in Xenopus. Xfz10A (586 amino acids) and Xfz10B (580 amino acids) both encoded by a single exon, consisted of the N-terminal cysteine-rich domain, seven transmembrane domains, and the C-terminal Ser/Thr-X-Val motif. Xfz10A and Xfz10B were 97.0% identical at the amino acid level, and Xfz10B was 100% identical to previously reported Xfz9, yet Xfz10A was 85.3% and 62.4% identical to FZD10 and FZD9, respectively. Xfz10 mRNA appeared as 3.4 kb in adult tissues and embryos. RT-PCR analyses revealed the expression of more Xfz10A mRNA in stomach, kidney, eye, skeletal muscle, and skin, and more Xfz10B mRNA in heart and ovary, but in embryos, two mRNAs were equally expressed from the blastula stage with their peak expression at the late gastrula stage. The main site of Xfz10 mRNA expression was neural fold at the neurula stage and the dorsal region of midbrain, hindbrain, and spinal cord at the tadpole stage. These results suggest that Xfz10 has important roles in neural tissue formation.
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Affiliation(s)
- J Moriwaki
- Laboratory of Molecular Embryology, Department of Integrated Biosciences, Graduate School of Frontier Science, University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo, 113-0033, Japan
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Abstract
BACKGROUND If creating an obstructive uropathy early in glomerulogenesis produces MCDK (Multicystic Dysplastic Kidney), then a very early obstruction may produce Potter's Syndrome (PS) with oligohydramnios. METHODS Fetal lambs at 50 days' gestation underwent urethral and urachal ligation using fine SILASTIC (Dow Corning, Midland, MI) tubing and were delivered by cesarean section at 145 days' gestation. At the time of death, kidney weight, length, and lung volumes were measured. These samples were examined histologically. Urinary sodium, chloride, potassium, and osmolarity also were measured. These were compared with normal-term fetuses. RESULTS One ewe miscarried. Two of 3 of 50-day obstructive uropathy lambs survived. The 2 survivors had dysplastic kidneys. One with large gastroschisis did not have PS but the other had renal, pulmonary, and chest wall hypoplasia. Both male lambs had undescended testes with a large bladder. Kidney weights were 2 g in the PS lamb and 16 g in controls. Lung volume was 84 mL in the PS lamb and 340 mL in controls. The lamb's face was compressed and the fetus was hydropic. Urine sodium, potassium, and osmolarity levels were higher than that of controls. CONCLUSIONS This is the first successful model ligating the penile urethra and urachus in a 50-day lamb. The authors' previous 60-day model did not have PS, but an earlier obstructive uropathy caused MCDK with PS.
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Affiliation(s)
- H Kitagawa
- Department of Pathology, St Marianna University School of Medicine, Kawasaki, Japan
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Kitagawa H, Pringle KC, Zuccollo J, Koike J, Nakada K, Ikoma M, Seki Y. Glomerular size in renal dysplasia secondary to obstructive uropathy: a further exploration of the fetal lamb model. J Pediatr Surg 2000; 35:1651-5. [PMID: 11083445 DOI: 10.1053/jpsu.2000.18344] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND/PURPOSE Creating an obstructive uropathy early in glomerulogenesis would produce multicystic dysplastic kidneys (MCDK). Measuring the mean planar area of the glomeruli (GMPA) may clarify the pathogenesis of MCDK. METHODS Fetal lambs at 60 days' gestation had their left ureter ligated and were delivered by cesarian section at 145 days' gestation. Kidney weight and length were recorded. GMPA in 3 zones (outer, middle, inner) of the sectioned kidney was measured using a computerized planimeter. The obstructed kidneys were compared with contralateral unobstructed kidneys. The unpaired Student's t test was used to determine significance. RESULTS One ewe miscarried. Four of 5 (80%) 60-day lambs survived. All had dysplastic kidneys. Mean kidney weights were 4.3 +/- 0.84 g in MCDK and 16.8 +/- 3.6 g in controls (P< .05). The GMPA of the outer, middle, and inner zones of the MCDK were 2.7 x 10(-3) mm2, 3.2 x 10(-3) mm2, and 4.0 x 10(-3) mm2, respectively. Controls were 2.8 x 10(-3) mm2, 4.4 x 10(-3) mm2, and 6.0 x 10(-3) mm2. The glomeruli of 60-day fetal kidneys were 3.0 x 10(-3) mm2, 6.1 x 10(-3) mm2, and 11.0 x 10(-3) mm2. MCDK had smaller glomeruli in the inner and middle zones than controls. CONCLUSION Fetal glomeruli appear to grow from the inner zone of the kidney. Early urinary tract obstruction stops this growth.
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Affiliation(s)
- H Kitagawa
- Division of Pediatric Surgery aSt Marianna University School of Medicine, Kawasaki, Japan
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40
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Abstract
Secreted glycoprotein WNTs play important roles in carcinogenesis and development. We have previously reported molecular cloning of WNT-2B/WNT-13. Here, we have isolated a novel WNT-2B isoform (WNT-2B2), in addition to the original WNT-2B isoform (WNT-2B1). WNT-2B1 and WNT-2B2 are completely different in the 5'-UTR and in the N-terminal part of the coding region. The N-terminal hydrophobic domain is contained in WNT-2B1, but not in WNT-2B2. WNT-2B1 and WNT-2B2 share the WNT-core domain, and show 87.0% amino-acid identity. We have determined the structure of the WNT-2B gene. The WNT-2B1 mRNA consists of exons 1, 2, and 4-7, while the WNT-2B2 mRNA consists of exons 3-7. WNT-2B2 was expressed in fetal brain, fetal lung, fetal kidney, caudate nucleus, testis, glioblastoma cell lines A172, SW1783, gastric cancer cell lines MKN28, MKN74, and cervical cancer cell line HeLa S3. WNT-2B1 expression level was relatively higher in fetal brain and fetal lung than in other tissues or cell lines expressing WNT-2B2. These results indicate that the WNT-2B1 and WNT-2B2 mRNAs are transcribed due to alternative splicing with distinct expression profile. This is the first report on the WNT isoforms derived from the same gene due to alternative splicing.
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Affiliation(s)
- M Katoh
- Genetics and Cell Biology Section, Genetics Division, National Cancer Center Research Institute, Tsukiji 5-chome, Chuo-ku, Tokyo, 104-0045, Japan.
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41
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Tsutsumi S, Wachi A, Uto A, Koike J, Arai H, Sato K. Infantile arachnoid cyst compressing the sacral nerve root associated with spina bifida and lipoma--case report. Neurol Med Chir (Tokyo) 2000; 40:435-8. [PMID: 10979269 DOI: 10.2176/nmc.40.435] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A 2-year-old boy presented with a rare sacral arachnoid cyst manifesting as gait disturbance. Neuroimaging revealed an intradural cyst in the sacral nerve root sheath associated with spina bifida occulta and a lipoma at the same level. At surgery, the conus medullaris was situated at the L-1 level and not tethered. The highly pressurized arachnoid cyst had exposed the dural sheath of the left S-2 nerve root and compressed the adjacent nerves. An S-2 nerve root pierced through the cyst. There was no communication between the cyst and spinal arachnoid space. We thought the one-way valve mechanism had contributed to the cyst enlargement and the nerve compression. Radical resection of the cyst was not attempted. A cyst-subarachnoid shunt was placed to release the intracystic pressure. Postoperatively, his gait disturbance improved and no deterioration occurred during the 4-year follow up. Both tethered cord syndrome and sacral arachnoid cyst in the nerve root sheath should be considered in pediatric progressive gait disturbance. Cyst-subarachnoid shunt is an alternative method to cyst resection or fenestration to achieve neurological improvement.
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Affiliation(s)
- S Tsutsumi
- Department of Neurosurgery, Tokyo Metropolitan Health and Medical Treatment Corporation, Tamananbu Regional Hospital, Japan
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42
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Abstract
P-selectin purified from human platelets, when immobilized on a solid surface, induced monocytes to release tumor necrosis factor-alpha (TNF-alpha). The induction of TNF-alpha release was dependent on the concentration of P-selectin used for the immobilization, and the maximal stimulation was observed when the plate was coated with 0.3 microgram/ml of P-selectin. Use of either a higher or a lower concentration of P-selectin for the plate-coating was found to elicit less TNF-alpha release, although the higher concentration of P-selectin caused a stronger adhesion of HL-60 leukemic cells. The expression of mRNA for TNF-alpha roughly paralleled the TNF-alpha secretion, as assessed by RT-PCR. These results indicate that monocytes are activated by immobilized P-selectin in a density-dependent manner.
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Affiliation(s)
- J Koike
- Laboratory of Cancer Biology and Molecular Immunology, Graduate School of Pharmaceutical Sciences, The University of Tokyo, Japan
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43
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Kirikoshi H, Koike J, Sagara N, Saitoh T, Tokuhara M, Tanaka K, Sekihara H, Hirai M, Katoh M. Molecular cloning and genomic structure of human frizzled-3 at chromosome 8p21. Biochem Biophys Res Commun 2000; 271:8-14. [PMID: 10777673 DOI: 10.1006/bbrc.2000.2578] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [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: 12/15/2022]
Abstract
WNT receptors encoded by the Frizzled genes are implicated in carcinogenesis as well as in embryonic development. Human Frizzled-3 (FZD3) gene, encoding seven-transmembrane receptor with the N-terminal cysteine-rich domain, has been cloned and characterized. Expression of the FZD3 mRNAs was investigated by using three FZD3 specific probes: HF3S1, corresponding to the 5'-UTR and a part of the coding region; HF3S2, corresponding to a part of the coding region; HF3S3, corresponding to the 3'-UTR. HF3S1 and HF3S2 hybridized to the 14.0-, 9.0-, 4.0- and 1.8-kb FZD3 mRNA, while HF3S3 hybridized to the 14.0-, 9.0-, and 4.0-kb FZD3 mRNA. The 14. 0-kb FZD3 mRNA was the major transcript in fetal brain and adult cerebellum, while the 1.8-kb FZD3 mRNA was the major transcript in adult pancreas, and many cancer cell lines examined. The 1.8-kb FZD3 mRNA, alternatively polyadenylated by the internal AATAAA signal in the coding region, is predicted to encode the truncated FZD3 protein lacking the region through the second extracellular loop to the C-terminal tail, and might function as the transmembrane-type antagonist for WNTs. The FZD3 gene consists of 8 exons, and has been mapped to human chromosome 8p21.
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MESH Headings
- Adenosine Monophosphate/metabolism
- Amino Acid Sequence
- Blotting, Northern
- Chromosome Mapping
- Chromosomes, Human, Pair 8
- Cloning, Molecular
- DNA, Complementary/metabolism
- Exons
- Gene Library
- Humans
- In Situ Hybridization, Fluorescence
- Introns
- Molecular Sequence Data
- Polymerase Chain Reaction
- Protein Structure, Tertiary
- RNA, Messenger/metabolism
- Sequence Homology, Amino Acid
- Tissue Distribution
- Tumor Cells, Cultured
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Affiliation(s)
- H Kirikoshi
- Genetics and Cell Biology Section, Genetics Division, National Cancer Center Research Institute, Tsukiji 5-chome, Chuo-ku, Tokyo, 104-0045, Japan
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44
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Takagi A, Watanabe S, Igarashi M, Koike J, Hasumi K, Deguchi R, Koga Y, Miwa T. The effect of Helicobacter pylori on cell proliferation and apoptosis in gastric epithelial cell lines. Aliment Pharmacol Ther 2000; 14 Suppl 1:188-92. [PMID: 10807423 DOI: 10.1046/j.1365-2036.2000.014s1188.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
BACKGROUND Helicobacter pylori has been implicated in the pathogenesis of gastric cancer and malignant lymphoma. It is not known whether the bacterium stimulates cell proliferation directly or if apoptosis induced by H. pylori leads to a hyperproliferative response. AIM To clarify the precise mechanism of H. pylori action on gastric epithelial cell growth, we compared the response of two cell lines, Kato III (p53 deletion) and MKN 45 (p53 wild type), to the organism. To determine the role of Helicobacter vacuolating cytotoxin in gastric mucosal injury, we examined the relation between vacuolating activity and apoptosis under several conditions. METHODS Five cytotoxic and four noncytotoxic strains of H. pylori were used, each with an inoculum of 10(7) cfu/mL. The effect on the growth in MKN 45 and Kato III cells was studied by MTT assay. Vacuolating cytotoxin activity was determined using RK-13 cells. RESULTS Neither cytotoxic nor noncytotoxic strains induced apoptosis, but death of MKN 45 cells was induced by pre-treatment with interferon-gamma and culture with TNF-alpha. In contrast, some strains of H. pylori increased proliferation of Kato III cells. Furthermore, cell death induced by cytotoxic strains, but not noncytotoxic strains, was significantly augmented by amoxycillin 5-50 g/mL (P=0.0016). On the other hand, acid-treated supernatant fluids from cultures of H. pylori showed enhanced vacuolating activity but did not induce cell death, suggesting that death is attributable to some factor other than the cytotoxin. CONCLUSION These findings suggest that H. pylori induces apoptosis by a means independent of vacuolating cytotoxin.
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Affiliation(s)
- A Takagi
- Department of Internal Medicine, Tokai University School of Medicine, Boseidai, Isehara, Japan
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45
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Kishi M, Maeyama S, Iwaba A, Ogata S, Koike J, Uchikoshi T. Hepatic veno-occlusive lesions and other histopathological changes of the liver in severe alcoholic hepatitis--a comparative clinicohistopathological study of autopsy cases. Alcohol Clin Exp Res 2000; 24:74S-80S. [PMID: 10803785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
BACKGROUND The clinicopathological features of veno-occlusive lesions (VOL) in the liver were studied in 18 autopsy cases of severe alcoholic hepatitis (sALH). All the cases were heavy drinkers and died of liver failure or variceal rupture. METHODS We performed histological evaluation by examining stained sections of liver blocks from each case. The severity of VOL was compared with the clinical findings and histopathological changes of alcoholic liver diseases (ALD). RESULTS Clinically, as the severity of VOL increased, the amount of ascites observed during autopsy increased significantly (p = 0.001) and the time from hospitalization to death was significantly longer (p < 0.05). The peripheral leukocyte count tended to increase and the serum bilirubin level increased significantly (p < 0.05) with increased VOL severity, after we excluded one case that was complicated by acute respiratory distress syndrome and bacterial endocarditis. Histopathologically, the appearance of Mallory bodies increased significantly as VOL became more severe (p < 0.05), but the VOL severity did not correlate with sinusoidal neutrophil infiltration. Fatty degeneration tended to be milder as VOL increased in severity although the difference was not significant, whereas bile retention tended to be more marked. CONCLUSIONS We conclude that investigation of VOL is clinicopathologically important when assessing the pathophysiology and severity of sALH.
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Affiliation(s)
- M Kishi
- Second Department of Pathology, St. Marianna University School of Medicine, Kawasaki, Japan
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Koike J, Sagara N, Kirikoshi H, Takagi A, Miwa T, Hirai M, Katoh M. Molecular cloning and genomic structure of the betaTRCP2 gene on chromosome 5q35.1. Biochem Biophys Res Commun 2000; 269:103-9. [PMID: 10694485 DOI: 10.1006/bbrc.2000.2241] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [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: 02/03/2023]
Abstract
Beta-catenin, IkappaBalpha, and HIV Vpu are recruited to the ubiquitin-proteasome degradation pathway by betaTRCP, one of the components of the ubiquitin ligase complex. betaTRCP2, a related gene of betaTRCP, was cloned and characterized. Three isoforms, betaTRCP2A, betaTRCP2B, and betaTRCP2C, were identified. All of these betaTRCP2 isoforms consist of an F-box and seven WD repeats. Human betaTRCP2A shows 86% total amino acid identity with human betaTRCP. betaTRCP2 mRNA of 4.5 kb in size was detected almost ubiquitously. Sequence analyses on betaTRCP2 genomic clones revealed that the betaTRCP2 gene consists of at least 14 exons. Exons 1 and 4-14 are shared among all betaTRCP2 isoforms. betaTRCP2A of 508 amino acids lacks exons 2 and 3, betaTRCP2B of 529 amino acids contains exon 3, and betaTRCP2C of 542 amino acids contains exon 2. These results indicate that three betaTRCP2 isoforms are transcribed due to alternative splicing. The betaTRCP2 gene has been mapped to human chromosome 5q35.1 by fluorescence in situ hybridization.
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MESH Headings
- Amino Acid Sequence
- Base Sequence
- Cell Line
- Chromosome Mapping
- Chromosomes, Human, Pair 5/genetics
- Cloning, Molecular
- DNA Primers/genetics
- DNA, Complementary/genetics
- DNA, Complementary/isolation & purification
- Exons
- Female
- GTP-Binding Proteins/genetics
- Gene Expression
- Humans
- In Situ Hybridization, Fluorescence
- Introns
- Male
- Molecular Sequence Data
- Pregnancy
- Protein Isoforms/genetics
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Repetitive Sequences, Amino Acid
- Sequence Homology, Amino Acid
- Tissue Distribution
- Ubiquitin-Protein Ligases
- beta-Transducin Repeat-Containing Proteins
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Affiliation(s)
- J Koike
- Genetics Division, National Cancer Center Research Institute, Tsukiji 5-chome, Chuo-ku, Tokyo, 104-0045, Japan
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Abstract
The E2F family of transcription factors regulates the expression of genes required for DNA synthesis and cell cycle control. The AGC triplet repeat in the coding region of the E2F-4 gene, a member of the family, has been reported to be mutated in colorectal cancers with a microsatellite instability (MSI) phenotype. We found a wider range variation of the repeat number in DNAs from tumors, the corresponding normal mucosa, and healthy individuals. A total of 5 repeat variants, ranging from 8 to 17 AGC repeats, was detected in 6 (9.7%) of the 62 healthy individuals and 8 (8.9%) of the 90 normal DNAs of the patients. The wild-type 13 repeat was present in all of these individuals. The variation of the AGC repeat number may be a polymorphism. Further, loss of heterozygosity (LOH) at the E2F-4 locus in the tumor tissues of 2 (25%) of the 8 informative cases was detected. The variation may be a useful marker for detection of LOH in primary tumors.
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Abstract
The survival conditions of microorganisms under extremely severe environment are of interest in various areas of biology, sterilization, and space engineering, especially where resistance to microorganisms is concerned. Despite the interest, the resistance to microorganisms under extremely severe environment such as space environment or other planetary environment is not known well. In order to investigate survival conditions of microorganisms under extremely severe environment, surviving fractions for spores and vegetative cells of Bacillus subtilis were surveyed in various chemical species of atmosphere at various pressures and various temperatures, and the dependence on time for surviving fractions was examined. The results show: (i) Surviving fractions depend on chemical species of atmosphere. (ii) At high pressure and high temperature, surviving fractions are low and the resistance of spores is stronger than that of vegetative cells. (iii) Surviving fractions decrease as first-order reaction along with time elapsed.
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Affiliation(s)
- I Sera
- University of Tsukuba, Japan
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49
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Abstract
This report describes a renal salvage procedure performed in a 2-year-old girl with bilateral renal tumors comprising a multilocular, cystic tumor of the right kidney and a solid and cystic nephroblastoma of the left kidney after chemotherapy. Surgery was performed because the right kidney became hydronephrotic due to compression by the enlarged cysts, while the left tumor showed only minimal shrinkage even after three courses of chemotherapy. The right-sided cysts were simply unroofed and the left-sided tumor was extirpated by partial nephrectomy. Her postoperative course was uneventful with considerable recovery of the function of each kidney. This procedure should be considered if the pathological features of the tumor are relatively favourable.
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Affiliation(s)
- K Nakada
- Division of Pediatric Surgery, St. Marianna University School of Medicine, Kawasaki, Japan
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50
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Tazawa K, Yatuzuka K, Yatuzuka M, Koike J, Ohkami H, Saito T, Ohnishi Y, Saito M. [Dietary fiber inhibits the incidence of hepatic metastasis with the anti-oxidant activity and portal scavenging functions]. Hum Cell 1999; 12:189-96. [PMID: 10834105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Dietary fiber is described as the proportion of plant foods not digested in the human small intestine. Among the various kinds of pectin, apple pectin exerts a bacteriostatic action and therefore may change the composition of the intestinal flora. The diet supplemented with 20% apple pectin significantly decreased the number and the incidence of AOM-induced colon tumors in rats. The prostaglandin E2 (PGE2) level in the distal colonic mucosa and blood of portal vein was lower in rats fed 20% pectin than those fed the basal diet. The ability of apple pectin to decrease PGE2 was dose-dependent and those results suggest an anti-inflammatory effect in the bowel. Rats fed apple pectin showed a significantly lower incidence of hepatic metastasis than those fed the basal diet. To determine whether the anti-inflammatory effect of Lactobacillus on hepatic metastasis model same as apple pectin, Lactobacillus casei was selected. Metastatic nodules were significantly reduced, especially in the group receiving pretreatment. Apple pectic oligosaccharides with small molecular weights showed highly inhibitory effects on hypoxanthin-xanthin oxidase and ferrous sulfate-hydrogen peroxide. The scavenging activity of apple pectic oligosaccharides was suitable and accelerated at high temperatures (120 degrees C, 30 min.). Apple pectin and Lactobacillus have a scavenger effect in the intestinal digestion and portal circulation system as an anti-inflammatory food and have very important function for the prevention of hepatic metastasis.
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Affiliation(s)
- K Tazawa
- Department of Adult Nursing, Faculty of Medicine, Toyama Medical & Pharmaceutical University
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