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Huang KL, Katsuki R, Kubo T, Wang JY, Sakamoto S, Nakao T, Kato TA. Unexpected risk factors of pathological hikikomori during the COVID-19 pandemic among working adults initially without social isolation: A longitudinal online survey. Psychiatry Clin Neurosci 2024; 78:332-334. [PMID: 38417831 DOI: 10.1111/pcn.13647] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/03/2024] [Accepted: 01/12/2024] [Indexed: 03/01/2024]
Affiliation(s)
- Kuan-Lun Huang
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
- Tsaotun Psychiatric Center, Ministry of Health and Welfare, Nantou, Taiwan
- Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan
| | - Ryoko Katsuki
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Taisei Kubo
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Jiun-Yi Wang
- Department of Healthcare Administration, College of Medical and Health Science, Asia University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Shinji Sakamoto
- Department of Psychology, College of Humanities and Sciences, Nihon University, Tokyo, Japan
| | - Tomohiro Nakao
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takahiro A Kato
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Suzuki Y, Sakamoto S. Development of the "Belief of Affective Perspective-Taking Ability Scale". Psychol Rep 2023; 126:2551-2563. [PMID: 35084242 DOI: 10.1177/00332941221075751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study aimed to develop the Belief of Affective Perspective-Taking Ability Scale (BAPTAS). The belief of affective perspective-taking ability is defined as the tendency of individuals to believe people are generally capable of taking others' perspectives and imagining others' emotions, and we developed 17 items for BAPTAS. The participants in the study comprised 151 university students, who answered the BAPTAS, Experience of Receiving Empathy Scale (ERES), perspective-taking tendency, Interpersonal Trust Scale (ITS), and UCLA loneliness scale in Japanese (ULS-J). Thus, 13 items were constructed, and the scores of BAPTAS showed a normal distribution (M = 4.52, SD = 0.97). BAPTAS is positively related to ERES, a perspective-taking tendency and ITS, and it is negatively related to ULS-J. The relations between BAPTAS and other scales correspond to our previous expectations. We discussed both the potential contribution of BAPTAS to perspective-taking and empathy research and the need to examine its validity experimentally. Our hypothesis was supported, and the validity and reliability of BAPTAS were confirmed.
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Ito N, Sakamoto S, Obayashi F, Kanda T. Central odontogenic fibroma with amyloid: a diagnostically challenging case. Int J Oral Maxillofac Surg 2023; 52:1035-1038. [PMID: 36804052 DOI: 10.1016/j.ijom.2023.01.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 12/29/2022] [Accepted: 01/12/2023] [Indexed: 02/19/2023]
Abstract
Odontogenic fibroma is a rare benign mesenchymal odontogenic tumor, with its histological diversity possibly posing diagnostic challenges. A case of the amyloid variant of central odontogenic fibroma, with epithelial cells in perineural and intraneural locations, is reported herein. The 46-year-old female patient had experienced discomfort related to her anterior right hard palate for approximately 25 years. Clinical examination revealed a depression in the anterior hard palate, and radiographic examination showed a well-defined radiolucent lesion with root resorption of the adjacent teeth. Histologically, the well-circumscribed tumor was composed of hypocellular collagenous connective tissue with small islands of odontogenic epithelium. In addition, the juxta-epithelial deposition of amyloid globules without calcification and epithelial cells in perineural and intraneural locations were observed, which posed a diagnostic challenge in differentiating the lesion from the non-calcifying variant of calcifying epithelial odontogenic tumor and sclerosing odontogenic carcinoma. However, on the basis of the clinical and radiographic findings, which were suggestive of a benign and slowly progressive process given the corticated, unilocular radiolucency, the considerable root resorption, and the long history of this finding in an otherwise healthy patient, the final diagnosis was amyloid variant of central odontogenic fibroma. Increased recognition of this variant of odontogenic fibroma and its differentiation from other more aggressive lesions could help the clinician to avoid overdiagnosis and overtreatment.
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Affiliation(s)
- N Ito
- Department of Oral Oncology, Hiroshima University Hospital, Hiroshima, Japan.
| | - S Sakamoto
- Center of Oral Clinical Examination, Hiroshima University Hospital, Hiroshima, Japan
| | - F Obayashi
- Department of Oral Oncology, Hiroshima University Hospital, Hiroshima, Japan
| | - T Kanda
- Department of Oral and Maxillofacial Surgery, Hiroshima Prefectural Hospital, Hiroshima, Japan
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Sakamoto S, Suzuki Y, Katsuki R, Yamakawa I, Kato TA. Analyzing changes in help-seeking from mental and physical health professionals during COVID-19 in Japan. PSYCHOL HEALTH MED 2023:1-13. [PMID: 37661640 DOI: 10.1080/13548506.2023.2253509] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 08/25/2023] [Indexed: 09/05/2023]
Abstract
Japan witnessed the outbreak of coronavirus disease (COVID-19) in March - May 2020. We examined whether the impact of COVID-19 on people seeking help from mental and physical health professionals varied with changes in employment (from full-time employment to unemployment or leave of absence) and psychological predisposition to new-type depression (Interpersonal Sensitivity [IS]/Privileged Self [PS]) associated with the pandemic. An online survey was conducted in June 2020 (after the outbreak of COVID-19) among people who were full-time employees as of April 2019. Data from 1,053 individuals were analyzed. The survey asked about regular visits to health professionals one year prior to the survey (June 2019) and at the time of the survey. Employment status, personality traits, and demographic characteristics were also examined. We found that consultation rates changed little before and after the pandemic. Logistic regression analysis showed that after controlling for age and gender, being unemployed or absent from work after the pandemic and having higher scores for IS/PS were positively associated with regular visits to health professionals. Considering that COVID-19 has been shown to increase the incidence of physical and mental illness, the finding that the rate of consultations remained unchanged implies that consultations were withheld. Joblessness/absence from work and IS/PS had negative effects on physical and mental health, leading to fewer visits.
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Affiliation(s)
- Shinji Sakamoto
- Department of Psychology, College of Humanities and Sciences, Nihon University, Tokyo, Japan
| | - Yudai Suzuki
- Department of Psychology, College of Humanities and Sciences, Nihon University, Tokyo, Japan
| | - Ryoko Katsuki
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Itsuki Yamakawa
- Faculty of Contemporary Sociology, Tohoku Bunka Gakuen University, Sendai, Japan
| | - Takahiro A Kato
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Hosokawa T, Miyaji C, Yoshimura Y, Washida K, Yada Y, Sakamoto S, Okahisa Y, Takao S, Nomura A, Kishi Y, Harada T, Takaki M, Takeda T, Yamada N. Comparison between olanzapine and aripiprazole treatment for 104 weeks after hospital discharge in schizophrenia spectrum disorders: a multicenter retrospective cohort study in a real-world setting. Psychopharmacology (Berl) 2023; 240:1911-1920. [PMID: 37460628 DOI: 10.1007/s00213-023-06407-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 06/12/2023] [Indexed: 09/01/2023]
Abstract
RATIONALE The long-term effectiveness of olanzapine and aripiprazole in real clinical conditions at flexible doses in patients after hospital discharge has not been evaluated yet. OBJECTIVES This study was a multicenter retrospective cohort study. Patients with schizophrenia (n = 398) were prescribed olanzapine (n = 303) or aripiprazole (n = 95) at hospital discharge. The continuation of olanzapine or aripiprazole at 26, 52, or 104 weeks after the hospital discharge were compared using a Cox proportional hazards model and adjusted for possible confounders. RESULTS The Kaplan-Meier survival curves revealed that the continuation of olanzapine at 26 (P = 0.001) and 52 weeks (P = 0.018) was significantly higher than that of aripiprazole but not at 104 weeks. Olanzapine was better than aripiprazole in efficacy at 26 (hazard ratio: 0.321, 95% confidence interval: 0.159-0.645, P = 0.001), 52 (hazard ratio: 0.405, 95% confidence interval: 0.209-0.786, P = 0.008), and 104 weeks (hazard ratio: 0.438, 95% confidence interval: 0.246-0.780, P = 0.005). Aripiprazole was better than olanzapine in tolerability at 104 weeks (hazard ratio: 4.574, 95% confidence interval: 1.415-14.787, P = 0.011). Rates after two years continuation of olanzapine and aripiprazole were not significantly different in patients with less than five years' duration of illness, but olanzapine was more commonly maintained for more than two years in those patients who had been ill for over five years' due to its greater efficacy. CONCLUSION Olanzapine treatment showed better continuation rates at 26 and 52 after hospital discharge than aripiprazole, whereas maintenance with the two antipsychotics did not differ significantly at 104 weeks, due reduced tolerability of long-term olanzapine treatment.
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Affiliation(s)
- Tomonari Hosokawa
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
- Department of Psychiatry, Zikei Hospital/Zikei Institute of Psychiatry, Okayama, Japan
| | - Chikara Miyaji
- Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yusaku Yoshimura
- Department of Psychiatry, Zikei Hospital/Zikei Institute of Psychiatry, Okayama, Japan
| | - Kenji Washida
- Department of Psychiatry, Zikei Hospital/Zikei Institute of Psychiatry, Okayama, Japan
| | - Yuji Yada
- Okayama Psychiatric Medical Center, Okayama, Japan
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Yuko Okahisa
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
| | - Soshi Takao
- Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | | | | | | | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan.
| | - Toshihiko Takeda
- Department of Psychiatry, Zikei Hospital/Zikei Institute of Psychiatry, Okayama, Japan
| | - Norihito Yamada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-Cho, Kita-Ku, Okayama, 700-8558, Japan
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Peters DE, Norris LD, Tenora L, Šnajdr I, Ponti AK, Zhu X, Sakamoto S, Veeravalli V, Pradhan M, Alt J, Thomas AG, Majer P, Rais R, McDonald C, Slusher BS. A gut-restricted glutamate carboxypeptidase II inhibitor reduces monocytic inflammation and improves preclinical colitis. Sci Transl Med 2023; 15:eabn7491. [PMID: 37556558 PMCID: PMC10661206 DOI: 10.1126/scitranslmed.abn7491] [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: 12/17/2021] [Accepted: 07/21/2023] [Indexed: 08/11/2023]
Abstract
There is an urgent need to develop therapeutics for inflammatory bowel disease (IBD) because up to 40% of patients with moderate-to-severe IBD are not adequately controlled with existing drugs. Glutamate carboxypeptidase II (GCPII) has emerged as a promising therapeutic target. This enzyme is minimally expressed in normal ileum and colon, but it is markedly up-regulated in biopsies from patients with IBD and preclinical colitis models. Here, we generated a class of GCPII inhibitors designed to be gut-restricted for oral administration, and we interrogated efficacy and mechanism using in vitro and in vivo models. The lead inhibitor, (S)-IBD3540, was potent (half maximal inhibitory concentration = 4 nanomolar), selective, gut-restricted (AUCcolon/plasma > 50 in mice with colitis), and efficacious in acute and chronic rodent colitis models. In dextran sulfate sodium-induced colitis, oral (S)-IBD3540 inhibited >75% of colon GCPII activity, dose-dependently improved gross and histologic disease, and markedly attenuated monocytic inflammation. In spontaneous colitis in interleukin-10 (IL-10) knockout mice, once-daily oral (S)-IBD3540 initiated after disease onset improved disease, normalized colon histology, and attenuated inflammation as evidenced by reduced fecal lipocalin 2 and colon pro-inflammatory cytokines/chemokines, including tumor necrosis factor-α and IL-17. Using primary human colon epithelial air-liquid interface monolayers to interrogate the mechanism, we further found that (S)-IBD3540 protected against submersion-induced oxidative stress injury by decreasing barrier permeability, normalizing tight junction protein expression, and reducing procaspase-3 activation. Together, this work demonstrated that local inhibition of dysregulated gastrointestinal GCPII using the gut-restricted, orally active, small-molecule (S)-IBD3540 is a promising approach for IBD treatment.
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Affiliation(s)
- Diane E. Peters
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Lauren D. Norris
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Lukáš Tenora
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 160 00 Prague, Czechia
| | - Ivan Šnajdr
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 160 00 Prague, Czechia
| | - András K. Ponti
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Xiaolei Zhu
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Shinji Sakamoto
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Vijayabhaskar Veeravalli
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Manisha Pradhan
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Jesse Alt
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Ajit G. Thomas
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Pavel Majer
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, 160 00 Prague, Czechia
| | - Rana Rais
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Christine McDonald
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Barbara S. Slusher
- Johns Hopkins Drug Discovery, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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Zhu X, Sakamoto S, Ishii C, Smith MD, Ito K, Obayashi M, Unger L, Hasegawa Y, Kurokawa S, Kishimoto T, Li H, Hatano S, Wang TH, Yoshikai Y, Kano SI, Fukuda S, Sanada K, Calabresi PA, Kamiya A. Dectin-1 signaling on colonic γδ T cells promotes psychosocial stress responses. Nat Immunol 2023; 24:625-636. [PMID: 36941398 DOI: 10.1038/s41590-023-01447-8] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [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: 09/16/2021] [Accepted: 02/02/2023] [Indexed: 03/23/2023]
Abstract
The intestinal immune system interacts with commensal microbiota to maintain gut homeostasis. Furthermore, stress alters the microbiome composition, leading to impaired brain function; yet how the intestinal immune system mediates these effects remains elusive. Here we report that colonic γδ T cells modulate behavioral vulnerability to chronic social stress via dectin-1 signaling. We show that reduction in specific Lactobacillus species, which are involved in T cell differentiation to protect the host immune system, contributes to stress-induced social-avoidance behavior, consistent with our observations in patients with depression. Stress-susceptible behaviors derive from increased differentiation in colonic interleukin (IL)-17-producing γδ T cells (γδ17 T cells) and their meningeal accumulation. These stress-susceptible cellular and behavioral phenotypes are causally mediated by dectin-1, an innate immune receptor expressed in γδ T cells. Our results highlight the previously unrecognized role of intestinal γδ17 T cells in the modulation of psychological stress responses and the importance of dectin-1 as a potential therapeutic target for the treatment of stress-induced behaviors.
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Affiliation(s)
- Xiaolei Zhu
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shinji Sakamoto
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
| | - Chiharu Ishii
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan
| | - Matthew D Smith
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Koki Ito
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, Hokkaido, Japan
| | - Mizuho Obayashi
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Lisa Unger
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Institute of Neuroimmunology and Multiple Sclerosis, University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - Yuto Hasegawa
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shunya Kurokawa
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
| | - Taishiro Kishimoto
- Department of Neuropsychiatry, Keio University School of Medicine, Tokyo, Japan
- Hills Joint Research Laboratory for Future Preventive Medicine and Wellness, Keio University School of Medicine, Tokyo, Japan
| | - Hui Li
- Departments of Mechanical Engineering and Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
- School of Electrical, Computer and Biomedical Engineering, Southern Illinois University, Carbondale, IL, USA
| | - Shinya Hatano
- Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Tza-Huei Wang
- Departments of Mechanical Engineering and Biomedical Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Yasunobu Yoshikai
- Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Shin-Ichi Kano
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL, USA
| | - Shinji Fukuda
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Japan
- Gut Environmental Design Group, Kanagawa Institute of Industrial Science and Technology, Kawasaki, Japan
- Transborder Medical Research Center, University of Tsukuba, Tsukuba, Japan
- Laboratory for Regenerative Microbiology, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Kenji Sanada
- Department of Psychiatry, School of Medicine, Showa University, Tokyo, Japan
| | - Peter A Calabresi
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Atsushi Kamiya
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Kawai H, Kishimoto M, Okahisa Y, Sakamoto S, Terada S, Takaki M. Initial Outcomes of the Safe and Sound Protocol on Patients with Adult Autism Spectrum Disorder: Exploratory Pilot Study. Int J Environ Res Public Health 2023; 20:4862. [PMID: 36981773 PMCID: PMC10049251 DOI: 10.3390/ijerph20064862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/05/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Sensory impairments are common features of autism spectrum disorder (ASD) and are associated with its social impairments. However, there is no established treatment for these impairments in adults with ASD. The Safe & Sound Protocol (SSP) is a listening program designed to improve social communication skills by reducing auditory hypersensitivity. We investigated the effectiveness of the SSP for adults with ASD. We administered the SSP to six participants with ASD aged 21-44 years old, and the effects were assessed using the Social Responsiveness Scale, Second Edition (SRS-2). Secondary outcomes were assessed using the Center for Epidemiological Studies Depression Scale (CES-D), State-Trait Anxiety Inventory (STAI), WHO Quality of Life 26 (WHOQOL-BREF), and Adolescent/Adult Sensory Profile (A/ASP). In this study, only the Social Awareness scale of the SRS-2 Family-Report showed a significant improvement after the intervention. In addition, it was significantly correlated with physical health of WHOQOL-BREF (r = -0.577, p = 0.012), state and trait anxiety of STAI (r = 0.576, p = 0.012; r = 0.708, p = 0.00009, respectively), and CES-D (r = 0.465, p = 0.05). In conclusion, the SSP has a partial effect on social impairments in adults with ASD, specifically on the Social Awareness subscale of the SRS-2.
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Affiliation(s)
- Hiroki Kawai
- Department of Neuropsychiatry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan; (H.K.)
| | - Makiko Kishimoto
- Department of Neuropsychiatry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan; (H.K.)
- National Center for Child Health and Development, Tokyo 157-0074, Japan
| | - Yuko Okahisa
- Department of Neuropsychiatry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan; (H.K.)
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan; (H.K.)
| | - Seishi Terada
- Department of Neuropsychiatry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan; (H.K.)
| | - Manabu Takaki
- Department of Neuropsychiatry, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8530, Japan; (H.K.)
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Kato TA, Suzuki Y, Horie K, Teo AR, Sakamoto S. One month version of Hikikomori Questionnaire-25 (HQ-25M): Development and initial validation. Psychiatry Clin Neurosci 2023; 77:188-189. [PMID: 36305452 DOI: 10.1111/pcn.13499] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 10/07/2022] [Accepted: 10/23/2022] [Indexed: 11/26/2022]
Affiliation(s)
- Takahiro A Kato
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Yudai Suzuki
- Department of Psychology, College of Humanities and Sciences, Nihon University, 3-25-40, Sakurajosui, Setagaya-ku, Tokyo, 156-8550, Japan
| | - Kazumasa Horie
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-ku, Fukuoka, 812-8582, Japan
| | - Alan R Teo
- Center to Improve Veteran Involvement in Care, VA Portland Health Care System, 3710 SW US Veterans HospitalRd (R&D 66), Portland, Oregon, 97239-2964, USA.,Department of Psychiatry, Oregon Health & Science University, 3181 SW Sam Jackson Park Rd (Multnomah Pavilion, Room 2316), Portland, Oregon, 97239-3098, USA
| | - Shinji Sakamoto
- Department of Psychology, College of Humanities and Sciences, Nihon University, 3-25-40, Sakurajosui, Setagaya-ku, Tokyo, 156-8550, Japan
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Sakamoto S, Baba H, Xue Z, Yamada Y, Rii J, Fujimoto A, Takeuchi N, Sazuka T, Imamura Y, Akakura K, Ichikawa T. The location of tumor volume over 2.8cc predict the prognosis among Japanese localized prostate cancer. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01280-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Sakamoto S, Takei A, Nino J, Takeuchi N, Kanesaka M, Shibata Y, Sazuka T, Imamura Y, Akakura K, Ichikawa T. The difference in serum testosterone recovery between Gn-RH antagonist and LH-RH agonist among prostate cancer patients treated radiation therapy. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01155-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Umemori Y, Handa K, Sakamoto S, Kageyama M, Iijima T. QSAR model to predict K p,uu,brain with a small dataset, incorporating predicted values of related parameter. SAR QSAR Environ Res 2022; 33:885-897. [PMID: 36420623 DOI: 10.1080/1062936x.2022.2149619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
The unbound brain-to-plasma concentration ratio (Kp,uu,brain) is a parameter that indicates the extent of central nervous system penetration. Pharmaceutical companies build prediction models because many experiments are required to obtain Kp,uu,brain. However, the lack of data hinders the design of an accurate prediction model. To construct a quantitative structure-activity relationship (QSAR) model with a small dataset of Kp,uu,brain, we investigated whether the prediction accuracy could be improved by incorporating software-predicted brain penetration-related parameters (BPrPs) as explanatory variables for pharmacokinetic parameter prediction. We collected 88 compounds with experimental Kp,uu,brain from various official publications. Random forest was used as the machine learning model. First, we developed prediction models using only structural descriptors. Second, we verified the predictive accuracy of each model with the predicted values of BPrPs incorporated in various combinations. Third, the Kp,uu,brain of the in-house compounds was predicted and compared with the experimental values. The prediction accuracy was improved using five-fold cross-validation (RMSE = 0.455, r2 = 0.726) by incorporating BPrPs. Additionally, this model was verified using an external in-house dataset. The result suggested that using BPrPs as explanatory variables improve the prediction accuracy of the Kp,uu,brain QSAR model when the available number of datasets is small.
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Affiliation(s)
- Y Umemori
- Toxicology & DMPK Research Department, Teijin Institute for Bio-medical Research, Teijin Pharma Limited, Hino-shi, Japan
| | - K Handa
- Toxicology & DMPK Research Department, Teijin Institute for Bio-medical Research, Teijin Pharma Limited, Hino-shi, Japan
| | - S Sakamoto
- Pharmaceutical Development Coordination Department, Teijin Pharma Limited, Chiyoda-ku, Japan
| | - M Kageyama
- Toxicology & DMPK Research Department, Teijin Institute for Bio-medical Research, Teijin Pharma Limited, Hino-shi, Japan
| | - T Iijima
- Toxicology & DMPK Research Department, Teijin Institute for Bio-medical Research, Teijin Pharma Limited, Hino-shi, Japan
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Barolli A, Bylykbashi K, Qafzezi E, Sakamoto S, Barolli L. Implementation of roulette wheel and random selection methods in a hybrid intelligent system: A comparison study for two Islands and Subway distributions considering different router replacement methods. Appl Soft Comput 2022. [DOI: 10.1016/j.asoc.2022.109805] [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]
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14
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Barolli A, Sakamoto S, Bylykbashi K, Barolli L. A Hybrid Intelligent Simulation System for Building IoT Networks: Performance Comparison of Different Router Replacement Methods for WMNs Considering Stadium Distribution of IoT Devices. Sensors (Basel) 2022; 22:7727. [PMID: 36298078 PMCID: PMC9612208 DOI: 10.3390/s22207727] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/04/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
As the Internet of Things (IoT) devices and applications proliferate, it becomes increasingly important to design robust networks that can continue to meet user demands at a high level. Wireless local area networks (WLANs) can be a good choice as IoT infrastructure when high throughput is required. On the other hand, wireless mesh networks (WMNs), which are WLANs with mesh topology following the IEEE802.11s standard, have many advantages compared to conventional WLANs. Nevertheless, there are some problems that need solutions. One of them is the node placement problem. In this work, we propose and implement a hybrid intelligent system that solves this problem by determining the position of mesh nodes by maximizing the mesh connectivity and the coverage of IoT devices. The system is based on particle swarm optimization (PSO), simulated annealing (SA), and distributed genetic algorithm (DGA). We compare the performance of three router replacement methods: constriction method (CM), random inertia weight method (RIWM), and rational decrement of Vmax method (RDVM). The simulation results show that RIWM achieves better performance compared to CM and RDVM because it achieves the highest connectivity while covering more clients than the other two methods.
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Affiliation(s)
- Admir Barolli
- Department of Information Technology, Aleksander Moisiu University of Durres, L.1, Rruga e Currilave, 2001 Durres, Albania
| | - Shinji Sakamoto
- Department of Information and Computer Science, Kanazawa Institute of Technology (KIT), 7-1 Ohgigaoka, Nonoichi 921-8501, Japan
| | - Kevin Bylykbashi
- Department of Information and Communication Engineering, Fukuoka Institute of Technology (FIT), 3-30-1 Wajiro-Higashi, Higashi-Ku, Fukuoka 811-0295, Japan
| | - Leonard Barolli
- Department of Information and Communication Engineering, Fukuoka Institute of Technology (FIT), 3-30-1 Wajiro-Higashi, Higashi-Ku, Fukuoka 811-0295, Japan
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15
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Hinotsu K, Miyaji C, Yada Y, Kawai H, Sakamoto S, Okahisa Y, Tsutsui K, Kanbayashi T, Tanaka K, Takao S, Kishi Y, Takaki M, Yamada N. The validity of atypical psychosis diagnostic criteria to detect anti-NMDA receptor encephalitis with psychiatric symptoms. Schizophr Res 2022; 248:292-299. [PMID: 36130472 DOI: 10.1016/j.schres.2022.08.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 07/06/2022] [Accepted: 08/24/2022] [Indexed: 11/16/2022]
Abstract
Anti-NMDAR encephalitis has a psychotic presentation that is difficult to distinguish from primary psychosis. An atypical psychosis that is similar to schizophrenia, mood disorder, and epilepsy is unique, and the original diagnostic criteria exist only in Japan. The clinical symptoms and courses of anti-NMDAR encephalitis and atypical psychosis are very similar. We investigated whether the diagnostic criteria of atypical psychosis are useful to increase the detection rate of anti-NMDAR encephalitis with psychiatric symptoms. The presence of anti-NR1/NR2B IgG antibodies in the cerebrospinal fluid of 218 newly admitted inpatients initially diagnosed with schizophrenia (n = 151), mood disorder (n = 47), or epilepsy with psychiatric symptoms (n = 20) was assessed by cell-based assay. Of 218 patients, 123 (36.3 years ± SD 17.2, 69.9 % females) fulfilled the diagnostic criteria of category B for atypical psychosis. All 12 patients (9.8 %, 12/123) with anti-NR1/NR2B IgG antibodies fulfilled category B of atypical psychosis statistically better than the patients without anti-NR1/NR2B IgG antibodies (P = 0.0009). Of the 12 patients with anti-NMDAR antibodies, two did not fulfill either criteria of catatonia (DSM-5) or Graus' diagnostic criteria of anti-NMDAR encephalitis during the time course, and 11 patients showed good prognosis with early immunotherapies. In ROC analysis, abnormal electroencephalogram findings showed the highest sensitivity (0.833) for detection of anti-NR1/NR2B IgG antibodies, and 31.3 % of patients with category B atypical psychosis and abnormal electroencephalogram findings had anti-NMDAR antibodies. Lumbar puncture and detection of anti-NMDAR antibodies should be considered for patients who fulfill atypical psychosis diagnosis criteria with an abnormal electroencephalogram.
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Affiliation(s)
- Kenji Hinotsu
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Chikara Miyaji
- Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Yuji Yada
- Okayama Psychiatric Medical Center, Japan
| | - Hiroki Kawai
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Yuko Okahisa
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Ko Tsutsui
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Japan; Kato Hospital, Japan
| | - Takashi Kanbayashi
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Japan; Ibaraki Prefectural Medical Center of Psychiatry, Kasama, Japan
| | - Keiko Tanaka
- Brain Research Institute, Niigata University Graduate School of Medicine, Japan
| | - Soshi Takao
- Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | | | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan.
| | - Norihito Yamada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
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Bell BJ, Hollinger KR, Deme P, Sakamoto S, Hasegawa Y, Volsky D, Kamiya A, Haughey N, Zhu X, Slusher BS. Glutamine antagonist JHU083 improves psychosocial behavior and sleep deficits in EcoHIV-infected mice. Brain Behav Immun Health 2022; 23:100478. [PMID: 35734753 PMCID: PMC9207540 DOI: 10.1016/j.bbih.2022.100478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/02/2022] [Accepted: 05/30/2022] [Indexed: 10/31/2022] Open
Abstract
Combined antiretroviral therapy ushered an era of survivable HIV infection in which people living with HIV (PLH) conduct normal life activities and enjoy measurably extended lifespans. However, despite viral control, PLH often experience a variety of cognitive, emotional, and physical phenotypes that diminish their quality of life, including cognitive impairment, depression, and sleep disruption. Recently, accumulating evidence has linked persistent CNS immune activation to the overproduction of glutamate and upregulation of glutaminase (GLS) activity, particularly in microglial cells, driving glutamatergic imbalance with neurological consequences. Our lab has developed a brain-penetrant prodrug of the glutamine antagonist 6-diazo-5-oxo-L-norleucine (DON), JHU083, that potently inhibits brain GLS activity in mice following oral administration. To assess the therapeutic potential of JHU083, we infected mice with EcoHIV and characterized their neurobehavioral phenotypes. EcoHIV-infected mice exhibited decreased social interaction, suppressed sucrose preference, disrupted sleep during the early rest period, and increased sleep fragmentation, similar to what has been reported in PLH but not yet observed in murine models. At doses shown to inhibit microglial GLS, JHU083 treatment ameliorated all of the abnormal neurobehavioral phenotypes. To explore potential mechanisms underlying this effect, hippocampal microglia were isolated for RNA sequencing. The dysregulated genes and pathways in EcoHIV-infected hippocampal microglia pointed to disruptions in immune functions of these cells, which were partially restored by JHU083 treatment. These findings suggest that upregulation of microglial GLS may affect immune functions of these cells. Thus, brain-penetrable GLS inhibitors like JHU083 could act as a potential therapeutic modality for both glutamate excitotoxicity and aberrant immune activation in microglia in chronic HIV infection.
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Kubo H, Katsuki R, Horie K, Yamakawa I, Tateno M, Shinfuku N, Sartorius N, Sakamoto S, Kato TA. Risk factors of hikikomori among office workers during the COVID-19 pandemic: A prospective online survey. Curr Psychol 2022; 42:1-19. [PMID: 35919757 PMCID: PMC9334542 DOI: 10.1007/s12144-022-03446-8] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/02/2022] [Indexed: 12/01/2022]
Abstract
The global pandemic of COVID-19 has forced people to restrict their outings. In Japan, self-restraint behavior (SRB) has been requested by the government, and some of those decreasing their outings may shift to pathological social withdrawal; hikikomori. The purpose of this study was to examine the risk factors of hikikomori conducting an online prospective survey. An online survey was conducted in June 2020 and December 2020; (1) SRB-related indicators (degree of SRB, motivation for SRB, stigma and self-stigma toward COVID-19, anxiety and depressive feelings toward COVID-19) and (2) general mental health (hikikomori tendency, depressive symptoms, modern type depression (MTD) tendency, internet addiction) were collected. A cross-lagged effects model was performed to examine the association between these variables. Lack of emotional support and lack of socialization in June 2020 increased isolation in December 2020. Besides, MTD and hikikomori interacted with each other. Interestingly, although hikikomori tendency increased depressive tendencies, SRB itself did not have a significant path on any mental health-related variables. Poor interpersonal relationships, rather than SRB per se, are suggested to be a risk factor for increased isolation among office workers in the COVID-19 pandemic. Appropriate early interventions such as interpersonal or emotional support may prevent the transition to pathological hikikomori. The association between MTD and hikikomori seems to reveal the interesting possibility that MTD is a gateway to increased risk of hikikomori, and that hikikomori is a gateway to MTD as well. Future research is required to elucidate the relationship between hikikomori and MTD.
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Affiliation(s)
- Hiroaki Kubo
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-Ku, Fukuoka, 812-8582 Japan
| | - Ryoko Katsuki
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-Ku, Fukuoka, 812-8582 Japan
| | - Kazumasa Horie
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-Ku, Fukuoka, 812-8582 Japan
| | - Itsuki Yamakawa
- Department of Health and Human Services, Faculty of Medical and Welfare, Tohoku Bunka Gakuen University, Miyagi, Japan
- Department of Psychology, College of Humanities and Sciences, Nihon University, Tokyo, Japan
| | - Masaru Tateno
- Tokiwa Child Development Center, Tokiwa Hospital, Sapporo, Japan
- Department of Neuropsychiatry, School of Medicine, Sapporo Medical University, Sapporo, Japan
| | - Naotaka Shinfuku
- School of Human Sciences, Seinan Gakuin University, Fukuoka, Japan
| | - Norman Sartorius
- Association for the Improvement of Mental Health Programmes, Geneva, Switzerland
| | - Shinji Sakamoto
- Department of Psychology, College of Humanities and Sciences, Nihon University, Tokyo, Japan
| | - Takahiro A. Kato
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi Higashi-Ku, Fukuoka, 812-8582 Japan
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18
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Otani T, Iwamoto H, Horimasu Y, Yamaguchi K, Sakamoto S, Masuda T, Miyamoto S, Nakashima T, Fujitaka K, Hamada H, Hattori N. Effect of dupilumab in a patient with severe asthma complicated with recurrent anaphylaxis: a case report. J Investig Allergol Clin Immunol 2022:0. [DOI: 10.18176/jiaci.0840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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19
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Mino S, Hinotsu K, Fujiwara M, Sakamoto S, Sasaki R, Yada Y, Yamada Y, Fukao T, Takaki M, Yamada N. Inconsistency of antibody testing in a patient with anti-N-methyl-D-aspartate receptor encephalitis. Asian J Psychiatr 2022; 72:103124. [PMID: 35421625 DOI: 10.1016/j.ajp.2022.103124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 04/07/2022] [Indexed: 11/25/2022]
Affiliation(s)
- Shori Mino
- Department of Neuropsychiatry, Okayama University Hospital, Okayama 700-8558, Japan.
| | - Kenji Hinotsu
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Masaki Fujiwara
- Department of Neuropsychiatry, Okayama University Hospital, Okayama 700-8558, Japan
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Hospital, Okayama 700-8558, Japan
| | - Ryo Sasaki
- Department of Neurology, Okayama University Hospital, Okayama 700-8558, Japan
| | - Yuji Yada
- Okayama Psychiatric Medical Center, Okayama 700-0915, Japan
| | - Yuto Yamada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Takashi Fukao
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Hospital, Okayama 700-8558, Japan
| | - Norihito Yamada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
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Hashimoto N, Habu H, Takao S, Sakamoto S, Okahisa Y, Matsuo K, Takaki M, Kishi Y, Yamada N. Clinical moderators of response to nalmefene in a randomized-controlled trial for alcohol dependence: An exploratory analysis. Drug Alcohol Depend 2022; 233:109365. [PMID: 35228081 DOI: 10.1016/j.drugalcdep.2022.109365] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/15/2022] [Accepted: 02/16/2022] [Indexed: 11/03/2022]
Abstract
BACKGROUND Nalmefene is the only medication marketed to reduce the consumption of alcohol in patients with alcohol dependence, but it remains unclear which patients could most benefit from it. This study aimed to identify clinical moderators that affect treatment response to nalmefene in patients with alcohol dependence. METHODS In a multicenter, randomized, controlled, double-blind, phase 3 study of nalmefene on Japanese patients with alcohol dependence, the relationship between the reduction of heavy drinking days (HDD) and total alcohol consumption (TAC) at 12 and 24 weeks of treatment and baseline variables of the participants were analyzed in a linear regression and multiple adjusted analysis. RESULTS Age < 65, no family history of problem drinking, age at onset of problem drinking ≥ 25, and not currently smoking were possible positive moderators. Nalmefene showed a significant HDD reduction in patients with age < 65 or no family history of problem drinking, and a significant TAC reduction in patients with age at onset of problem drinking ≥ 25 or who were not currently smoking. After multiple adjusted analyses, age < 65 (p = .028), no family history of problem drinking (p = .047), and age at onset of problem drinking ≥ 25 (p = .030) were statistically significant. Not currently smoking (p = .071) was marginally significant. In combination, these moderators indicated synergistic effects. CONCLUSIONS Alcohol-dependent patients with favorable prognostic factors such as non-smoking status, no family history of problem drinking, and a late-onset of problem drinking selectively benefit from nalmefene. Further research is needed to validate these exploratory results.
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Affiliation(s)
- Nozomu Hashimoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan; Okayama Psychiatric Medical Center, Japan
| | - Hiroshi Habu
- Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Soshi Takao
- Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Yuko Okahisa
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Keitaro Matsuo
- Division of Cancer Epidemiology and Prevention, Aichi Cancer Center Research Institute, Japan
| | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan.
| | | | - Norihito Yamada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
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Barolli A, Bylykbashi K, Qafzezi E, Sakamoto S, Barolli L. Performance Evaluation of Chi-Square and Normal Distributions of Mesh Clients for WMNs Considering Five Router Replacement Methods. International Journal of Distributed Systems and Technologies 2022. [DOI: 10.4018/ijdst.296247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In our previous work, we implemented a simulation system to solve the node placement problem in WMNs considering Particle Swarm Optimization (PSO) and Distributed Genetic Algorithm (DGA), called WMN-PSODGA. In this paper, we compare Chi-square and Normal distributions of mesh clients for different router replacement methods. The router replacement methods considered are Constriction Method (CM), Random Inertia Weight Method (RIWM), Linearly Decreasing Inertia Weight Method (LDIWM), Linearly Decreasing Vmax Method (LDVM) and Rational Decrement of Vmax Method (RDVM). The simulation results show that for both distributions, the mesh routers cover all mesh clients for all router replacement methods. In terms of load balancing, Normal distribution shows better results than Chi-square. The best router replacement method for this distribution is LDIWM. Thus, the best scenario is the Normal distribution of mesh clients with LDIWM as a router replacement method.
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22
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Barolli A, Sakamoto S. A web interface for WMN-PSODGA hybrid intelligent simulation system: performance evaluation for different mesh client distributions. IJWIS 2021. [DOI: 10.1108/ijwis-11-2021-0120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Purpose
The purpose of this paper is to implement a web interface for a hybrid intelligent system. By using the implemented web interface, one can find optimal assignments of mesh routers in wireless mesh networks (WMNs). This study evaluates the implemented system considering three distributions of mesh clients to solve the node placement problem in WMNs.
Design/methodology/approach
The node placement problem in WMNs is well known to be a computationally hard problem. Therefore, intelligent algorithms are used for solving this problem. The implemented system is a hybrid intelligent system based on meta-heuristics algorithms: particle swarm optimization (PSO) and distributed genetic algorithm (DGA). The proposed system is called WMN-PSODGA.
Findings
This study carried out simulations using the implemented simulation system. From the simulations results, it was found that the WMN-PSODGA system performs better for chi-square distribution of mesh clients compared with Weibull and exponential distributions.
Research limitations/implications
For simulations, three different distributions of mesh clients were considered. In the future, other mesh client distributions, number of mesh nodes and communication distance need to be considered.
Originality/value
This research work, different from other research works, implemented a hybrid intelligent simulation system for WMNs. This study also implemented a web interface for the proposed system, which make the simulation system user-friendly.
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23
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Barolli A, Bylykbashi K, Qafzezi E, Sakamoto S, Barolli L, Takizawa M. A comparison study of chi-square and uniform distributions of mesh clients for different router replacement methods using WMN-PSODGA hybrid intelligent simulation system. JHS 2021. [DOI: 10.3233/jhs-210670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Wireless Mesh Networks (WMNs) are gaining a lot of attention from researchers due to their advantages such as easy maintenance, low upfront cost and high robustness. Connectivity and stability directly affect the performance of WMNs. However, WMNs have some problems such as node placement problem, hidden terminal problem and so on. In our previous work, we implemented a simulation system to solve the node placement problem in WMNs considering Particle Swarm Optimization (PSO) and Distributed Genetic Algorithm (DGA), called WMN-PSODGA. In this paper, we compare chi-square and uniform distributions of mesh clients for different router replacement methods. The router replacement methods considered are Constriction Method (CM), Random Inertia Weight Method (RIWM), Linearly Decreasing Inertia Weight Method (LDIWM), Linearly Decreasing Vmax Method (LDVM) and Rational Decrement of Vmax Method (RDVM). The simulation results show that for chi-square distribution the mesh routers cover all mesh clients for all router replacement methods. In terms of load balancing, the method that achieves the best performance is RDVM. When using the uniform distribution, the mesh routers do not cover all mesh clients, but this distribution shows good load balancing for four router replacement methods, with RIWM showing the best performance. The only method that shows poor performance for this distribution is LDIWM. However, since not all mesh clients are covered when using uniform distribution, the best scenario is chi-square distribution of mesh clients with RDVM as a router replacement method.
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Affiliation(s)
- Admir Barolli
- Department of Information Technology, Aleksander Moisiu University of Durres, Albania. E-mail:
| | - Kevin Bylykbashi
- Department of Information and Communication Engineering, Fukuoka Institute of Technology, Japan. E-mails: ,
| | - Ermioni Qafzezi
- Graduate School of Engineering, Fukuoka Institute of Technology, Japan. E-mail:
| | - Shinji Sakamoto
- Department of Information and Computer Science, Kanazawa Institute of Technology, Japan. E-mail:
| | - Leonard Barolli
- Department of Information and Communication Engineering, Fukuoka Institute of Technology, Japan. E-mails: ,
| | - Makoto Takizawa
- Department of Advanced Sciences, Faculty of Science and Engineering, Hosei University, Japan. E-mail:
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24
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Hasegawa Y, Namkung H, Smith A, Sakamoto S, Zhu X, Ishizuka K, Lane AP, Sawa A, Kamiya A. Causal impact of local inflammation in the nasal cavity on higher brain function and cognition. Neurosci Res 2021; 172:110-115. [PMID: 33932551 PMCID: PMC10693917 DOI: 10.1016/j.neures.2021.04.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/21/2021] [Accepted: 04/25/2021] [Indexed: 12/20/2022]
Abstract
Epidemiological evidence suggests that adverse environmental factors in the nasal cavity may increase the risk for neuropsychiatric diseases. For instance, air pollution and nasal viral infection have been underscored as risk factors for Parkinson's disease, schizophrenia, and mood disorders. These adverse factors can elicit local inflammation in the nasal cavity, which may in turn influence higher brain function. Nevertheless, evidence that directly supports their causal link is missing. To fill this knowledge gap, we used an inducible mouse model for olfactory inflammation and showed the evidence that this local pathological factor can elicit behavioral abnormalities.
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Affiliation(s)
- Yuto Hasegawa
- Department of Psychiatry, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA
| | - Ho Namkung
- Department of Psychiatry, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA; Department of Biomedical Engineering, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA
| | - Amy Smith
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA
| | - Shinji Sakamoto
- Department of Psychiatry, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA
| | - Xiaolei Zhu
- Department of Psychiatry, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA
| | - Koko Ishizuka
- Department of Psychiatry, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA
| | - Andrew P Lane
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA
| | - Akira Sawa
- Department of Psychiatry, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA; Department of Biomedical Engineering, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA; Department of Neuroscience, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA; Department of Genetic Medicine, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA; Department of Mental Health, Johns Hopkins University Bloomberg School of Public Health, 600 N. Wolfe Street, Baltimore, MD, 21287, USA.
| | - Atsushi Kamiya
- Department of Psychiatry, Johns Hopkins University School of Medicine, 600 N. Wolfe Street, Baltimore, MD, 21287, USA.
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Sakamoto S, Zhu X, Hasegawa Y, Karma S, Obayashi M, Alway E, Kamiya A. Inflamed brain: Targeting immune changes and inflammation for treatment of depression. Psychiatry Clin Neurosci 2021; 75:304-311. [PMID: 34227186 PMCID: PMC8683253 DOI: 10.1111/pcn.13286] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/22/2021] [Accepted: 06/29/2021] [Indexed: 12/13/2022]
Abstract
Although there are a number of clinically effective treatments for depression, many patients exhibit treatment resistance. Recent clinical and preclinical studies reveal that peripheral and brain immune changes and inflammation are involved in the pathophysiology of depression. This 'Inflamed Brain' research provides critical clues for understanding of disease pathophysiology and many candidate molecules that are potentially useful for identifying novel drug targets for the treatment of depression. In this review, we will present clinical evidence on the role of inflammation in the pathophysiology of depression. We will also summarize current clinical trials which test drugs targeting inflammation for the treatment of patients with depression. Furthermore, we will briefly provide preclinical evidence demonstrating altered immune system function and inflammation in stress-induced animal models and will discuss the future potential of inflammation-related drug targets. Collectively, inflammatory signatures identified in clinical and preclinical studies may allow us to stratify depressive patients based on biotypes, contributing to the development of novel mechanism-based interventions that target specific patient populations.
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Affiliation(s)
- Shinji Sakamoto
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Xiaolei Zhu
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yuto Hasegawa
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sadik Karma
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Mizuho Obayashi
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Emily Alway
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Atsushi Kamiya
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Abstract
BACKGROUND Bipolar disorder is a chronic mental disorder with repetitive mania/hypomania as well as depressive episodes, which eventually results in marked impairment in overall functioning and health-related quality of life. A worldwide prevalence rate of 2.4% has been reported. The risk of suicide is higher in people with bipolar disorder than those with other mental disorders. Therefore, effective management of bipolar disorder in the maintenance period is warranted to minimize the risk of relapse or recurrence. Although lithium has been the standard treatment of bipolar disorder for many years, it is associated with adverse effects and teratogenicity. Lamotrigine is approved to be expected for prevention of recurrence for the maintenance treatment of bipolar disorder. In addition, lamotrigine is as effective as lithium. Therefore, we performed a systematic review to confirm the efficacy and safety of lamotrigine in the maintenance treatment of bipolar disorder. OBJECTIVES To assess the efficacy and tolerability of lamotrigine in the maintenance treatment of bipolar disorder. SEARCH METHODS We searched Ovid MEDLINE, Embase, PsycINFO, the Cochrane Common Mental Disorders Group's Specialized Register (CCMDCTR) and the Cochrane Central Register of Controlled Trials (CENTRAL) from inception to 21 May 2021. We also searched international trial registries and contacted experts in the field. SELECTION CRITERIA We included randomized controlled trials enrolling adults with bipolar disorder who were treated with lamotrigine, placebo or lithium. DATA COLLECTION AND ANALYSIS Two reviews authors independently checked the eligibility of studies and extracted data using a standardized form. Data extracted included study characteristics, participant characteristics, intervention details, settings, and outcome measures in the term of efficacy and tolerability. Study information were then entered into RevMan web. MAIN RESULTS We included 11 studies with a total of 2314 participants in this review; 1146 were randomized to lamotrigine, 869 were randomized to placebo and, 299 to lithium. We rated all studies as having an unclear risk of bias in at least one domain of Cochrane's tool for assessing risk of bias, with the most commonly observed weakness being selection bias (random sequence generation and allocation concealment). We judged five studies to be at a high risk of detection bias (blinding of outcome assessment). These potential biases pose as major threat to the validity of the included studies in this review. Outcomes of efficacy showed a possible advantage of lamotrigine over placebo. The estimated risk ratio (RR) for recurrence of manic symptom at one year as measured by the Young Mania Rating Scale (YMRS) was 0.67, (95% confidence interval (CI) 0.51 to 0.87; 3 studies, 663 participants; low-certainty evidence) in favor of lamotrigine. The RR of clinical worsening with the need for additional psychotropic treatment (RR 0.82, 95% CI 0.70 to 0.98; 4 studies, 756 participants) based on moderate-certainty evidence. The possible benefits of lamotrigine were also seen for the outcome of treatment withdrawal due to any reason at 6-12 months after treatment (RR 0.88, 95% CI 0.78 to 0.99; 4 studies, 700 participants; moderate-certainty evidence). Regarding tolerability, our analyses showed that the incidence rates of adverse effects were similar between the lamotrigine group and the placebo group (short-term effect: RR 1.07, 95% CI 0.81 to 1.42; 5 studies, 1138 participants; very low-certainty evidence; long-term effect: RR 0.97, 95% CI 0.77 to 1.23; 4 studies, 756 participants; moderate-certainty evidence). In the comparison between lamotrigine and lithium, efficacy was similar between groups except for recurrence of mania episode at one year. Recurrence of manic symptoms was higher in the lamotrigine group than that of the lithium group (RR 2.13, 95% CI 1.32 to 3.44; 3 studies, 602 participants; moderate-certainty evidence). Analysis of adverse effects at 6-12 months showed that a lower proportion of participants experienced at least one adverse effect when treated with lamotrigine compared to lithium (RR 0.70, 95% CI 0.51 to 0.96; 4 studies, 691 participants; moderate-certainty evidence). AUTHORS' CONCLUSIONS Low- to moderate-certainty evidence collectively suggests that lamotrigine may be superior to placebo as a treatment modality for bipolar disorder. In comparison to lithium, people with bipolar disorder seem to tolerate lamotrigine better in the long run; however, the demonstrated efficacy in the maintenance of bipolar disorder was similar between the two groups.
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Affiliation(s)
| | - Kazumasa Kotake
- Department of Pharmacy, Okayama Saiseikai General Hospital, Kita-Ku, Japan
| | - Norio Watanabe
- Department of Health Promotion and Human Behavior, Kyoto University School of Public Health, Kyoto, Japan
| | - Takashi Fujiwara
- Department of Otolaryngology, Kurashiki Central Hospital, Kurashiki, Japan
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Rodriguez Carvajal A, Grishkovskaya I, Gomez Diaz C, Vogel A, Sonn-Segev A, Kushwah MS, Schodl K, Deszcz L, Orban-Nemeth Z, Sakamoto S, Mechtler K, Kukura P, Clausen T, Haselbach D, Ikeda F. The linear ubiquitin chain assembly complex (LUBAC) generates heterotypic ubiquitin chains. eLife 2021; 10:e60660. [PMID: 34142657 PMCID: PMC8245127 DOI: 10.7554/elife.60660] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 06/17/2021] [Indexed: 12/21/2022] Open
Abstract
The linear ubiquitin chain assembly complex (LUBAC) is the only known ubiquitin ligase for linear/Met1-linked ubiquitin chain formation. One of the LUBAC components, heme-oxidized IRP2 ubiquitin ligase 1 (HOIL-1L), was recently shown to catalyse oxyester bond formation between ubiquitin and some substrates. However, oxyester bond formation in the context of LUBAC has not been directly observed. Here, we present the first 3D reconstruction of human LUBAC obtained by electron microscopy and report its generation of heterotypic ubiquitin chains containing linear linkages with oxyester-linked branches. We found that this event depends on HOIL-1L catalytic activity. By cross-linking mass spectrometry showing proximity between the catalytic RING-in-between-RING (RBR) domains, a coordinated ubiquitin relay mechanism between the HOIL-1-interacting protein (HOIP) and HOIL-1L ligases is suggested. In mouse embryonic fibroblasts, these heterotypic chains were induced by TNF, which is reduced in cells expressing an HOIL-1L catalytic inactive mutant. In conclusion, we demonstrate that LUBAC assembles heterotypic ubiquitin chains by the concerted action of HOIP and HOIL-1L.
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Affiliation(s)
- Alan Rodriguez Carvajal
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC)ViennaAustria
| | - Irina Grishkovskaya
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC)ViennaAustria
| | - Carlos Gomez Diaz
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC)ViennaAustria
| | - Antonia Vogel
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC)ViennaAustria
| | - Adar Sonn-Segev
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxfordUnited Kingdom
| | - Manish S Kushwah
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxfordUnited Kingdom
| | - Katrin Schodl
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC)ViennaAustria
| | - Luiza Deszcz
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC)ViennaAustria
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC)ViennaAustria
| | | | | | - Karl Mechtler
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC)ViennaAustria
| | - Philipp Kukura
- Department of Chemistry, University of Oxford, Chemistry Research LaboratoryOxfordUnited Kingdom
| | - Tim Clausen
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC)ViennaAustria
| | - David Haselbach
- Research Institute of Molecular Pathology (IMP), Vienna BioCenter (VBC)ViennaAustria
| | - Fumiyo Ikeda
- Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna BioCenter (VBC)ViennaAustria
- Medical Institute of Bioregulation (MIB), Kyushu UniversityFukuokaJapan
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Kashihara J, Sakamoto S. Identifying the Central Components of Perceived Costs and Benefits of Helping Peers with Depression: A Psychological Network Analysis Using Japanese Undergraduate Samples. Jpn Psychol Res 2021. [DOI: 10.1111/jpr.12371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Tohi Y, Kato T, Yokomizo A, Mitsuzuka K, Tomida R, Inokuchi J, Matsumoto R, Saito T, Sasaki H, Inoue K, Kinoshita H, Fukuhara H, Maruyama S, Sakamoto S, Tanikawa T, Egawa S, Ichikura H, Abe T, Nakamura M, Kakehi Y, Sugimoto M. Impact of health-related quality of life on repeat protocol biopsy compliance on active surveillance for favorable prostate cancer: Results from a prospective cohort in the PRIAS-JAPAN study. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)01410-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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30
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Sakamoto S, Mallah D, Medeiros DJ, Dohi E, Imai T, Rose IVL, Matoba K, Zhu X, Kamiya A, Kano SI. Alterations in circulating extracellular vesicles underlie social stress-induced behaviors in mice. FEBS Open Bio 2021; 11:2678-2692. [PMID: 34043886 PMCID: PMC8487053 DOI: 10.1002/2211-5463.13204] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Revised: 05/04/2021] [Accepted: 05/25/2021] [Indexed: 11/17/2022] Open
Abstract
Chronic stress induces peripheral and intracerebral immune changes and inflammation, contributing to neuropathology and behavioral abnormalities relevant to psychiatric disorders such as depression. Although the pathological implication of many peripheral factors such as pro‐inflammatory cytokines, hormones, and macrophages has been demonstrated, the roles of circulating extracellular vesicles (EVs) for chronic stress mechanisms remain poorly investigated. Here, we report that chronic social defeat stress (CSDS)‐induced social avoidance phenotype, assessed by a previously untested three‐chamber social approach test, can be distinguished by multiple pro‐inflammatory cytokines and EV‐associated molecular signatures in the blood. We found that the expression patterns of miRNAs distinguished the CSDS‐susceptible mice from the CSDS‐resilient mice. Social avoidance behavior scores were also estimated with good accuracy by the expression patterns of multiple EV‐associated miRNAs. We also demonstrated that EVs enriched from the CSDS‐susceptible mouse sera upregulated the production of pro‐inflammatory cytokines in the LPS‐stimulated microglia‐like cell lines. Our results indicate the role of circulating EVs and associated miRNAs in CSDS susceptibility, which may be related to pro‐inflammatory mechanisms underlying stress‐induced neurobehavioral outcomes.
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Affiliation(s)
- Shinji Sakamoto
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Dania Mallah
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Destynie J Medeiros
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Eisuke Dohi
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Takashi Imai
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Indigo V L Rose
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ken Matoba
- Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
| | - Xiaolei Zhu
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Atsushi Kamiya
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Shin-Ichi Kano
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA.,Department of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham School of Medicine, Birmingham, AL, USA
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Mizuki Y, Sakamoto S, Okahisa Y, Yada Y, Hashimoto N, Takaki M, Yamada N. Mechanisms Underlying the Comorbidity of Schizophrenia and Type 2 Diabetes Mellitus. Int J Neuropsychopharmacol 2021; 24:367-382. [PMID: 33315097 PMCID: PMC8130204 DOI: 10.1093/ijnp/pyaa097] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 11/29/2020] [Accepted: 12/10/2020] [Indexed: 02/07/2023] Open
Abstract
The mortality rate of patients with schizophrenia is high, and life expectancy is shorter by 10 to 20 years. Metabolic abnormalities including type 2 diabetes mellitus (T2DM) are among the main reasons. The prevalence of T2DM in patients with schizophrenia may be epidemiologically frequent because antipsychotics induce weight gain as a side effect and the cognitive dysfunction of patients with schizophrenia relates to a disordered lifestyle, poor diet, and low socioeconomic status. Apart from these common risk factors and risk factors unique to schizophrenia, accumulating evidence suggests the existence of common susceptibility genes between schizophrenia and T2DM. Functional proteins translated from common genetic susceptibility genes are known to regulate neuronal development in the brain and insulin in the pancreas through several common cascades. In this review, we discuss common susceptibility genes, functional cascades, and the relationship between schizophrenia and T2DM. Many genetic and epidemiological studies have reliably associated the comorbidity of schizophrenia and T2DM, and it is probably safe to think that common cascades and mechanisms suspected from common genes' functions are related to the onset of both schizophrenia and T2DM. On the other hand, even when genetic analyses are performed on a relatively large number of comorbid patients, the results are sometimes inconsistent, and susceptibility genes may carry only a low or moderate risk. We anticipate future directions in this field.
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Affiliation(s)
- Yutaka Mizuki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
- Shimonoseki Hospital
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yuko Okahisa
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Yuji Yada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
- Okayama Psychiatric Medical Center
| | - Nozomu Hashimoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
- Okayama Psychiatric Medical Center
| | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
| | - Norihito Yamada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
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Yoneda N, Shikama T, Hanada K, Mori S, Onchi T, Kuroda K, Hasuo M, Ejiri A, Matsuzaki K, Osawa Y, Peng Y, Kawamata Y, Sakamoto S, Idei H, Ido T, Nakamura K, Nagashima Y, Ikezoe R, Hasegawa M, Higashijima A, Nagata T, Shimabukuro S. Toroidal flow measurements of impurity ions in QUEST ECH plasmas using multiple viewing chords emission spectroscopy. Nuclear Materials and Energy 2021. [DOI: 10.1016/j.nme.2021.100905] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Yada Y, Kitagawa K, Sakamoto S, Ozawa A, Nakada A, Kashiwagi H, Okahisa Y, Takao S, Takaki M, Kishi Y, Yamada N. The relationship between plasma clozapine concentration and clinical outcome: a cross-sectional study. Acta Psychiatr Scand 2021; 143:227-237. [PMID: 33274435 DOI: 10.1111/acps.13264] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [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: 10/04/2020] [Revised: 11/24/2020] [Accepted: 11/29/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE There is no report that statistically evaluates the therapeutic reference (350-600 ng/ml) and adverse drug reaction (ADR) range (>1000 ng/ml) of clozapine (CLZ) recommended by the Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP) consensus guidelines in an isolated and large sampling study. METHODS We administered CLZ to 131 Japanese patients with treatment-resistant schizophrenia in a multicenter cross-sectional study. Plasma CLZ concentrations were assayed by high-performance liquid chromatography using trough sampling. The Brief Psychiatric Rating Scale (BPRS) and severe dose-dependent ADR (sedation, myoclonus, and seizures) were analyzed statistically after adjusting for possible confounders. RESULTS The daily CLZ dosage showed a moderately positive relationship with the plasma concentration (r = 0.49, p < 0.001). Every 100 ng/ml increase in plasma CLZ concentration improved the total BPRS score 1.95% (95% CI: 0.89-3.01, p < 0.001) and the odds ratio (OR) 1.38 (95% CI: 1.14-1.66, p = 0.001) for BPRS response. Compared with concentrations below 350 ng/ml CLZ, 350-600 ng/ml (11.12%; 95% CI: 2.52-19.72, p = 0.012) and 600-1000 ng/ml (11.05%; 95% CI: 2.40-19.71, p = 0.013) showed significant improvement in the total BPRS score. Dosages above 1000 ng/ml showed greater improvement (25.36%; 95% CI: 13.08-37.64, p < 0.001) of the total BPRS score but more severe ADRs than dosages below 1000 ng/ml (OR: 31.72; 95% CI: 1.04-968.81, p = 0.048). CONCLUSION The AGNP therapeutic reference range (350-600 ng/ml) is useful, and a dose above 1000 ng/ml is potentially more effective but carries the risk of severe ADRs in the central nervous system.
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Affiliation(s)
- Yuji Yada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.,Okayama Psychiatric Medical Center, Okayama, Japan
| | | | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | | | | | - Hiroko Kashiwagi
- Department of Forensic Psychiatry, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Yuko Okahisa
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Soshi Takao
- Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | | | - Norihito Yamada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Sakamoto S, Kirinashizawa M, Mohara Y, Watanabe Y. Generation and characterization of monoclonal antibodies against mature hepcidin and its application to neutralization and quantitative alteration assay. Biosci Biotechnol Biochem 2021; 85:340-350. [DOI: 10.1093/bbb/zbaa013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 09/15/2020] [Indexed: 12/28/2022]
Abstract
ABSTRACTHepcidin regulates the quantity of ferroportin (FPN) on cellular membrane. In our cell assay expressing ferroportin labeled with green fluorescence, FPN was internalized and degraded only after treatment with hepcidin-25, not hepcidin-22 or hepcidin-20, leading to accumulation of cellular iron. Thus we generated murine monoclonal antibodies (mAbs) against hepcidin-25, and then characterized and validated their functions. Among them, several mAbs showed a neutralizing activity that may prevent ferroportin internalization induced by hepcidin-25. To measure hepcidin level in various fluids, mAbs specific for human and rat hepcidin-25 were selected. As for rat, a sandwich ELISA developed using clone rHN1 as capture antibody and biotinylated clone mHW1 as a detection reagent had high sensitivity, allowing for the detection of 1-100 ng/mL of hepcidin-25. Rat hepcidin-25 level in plasma was measured at an average concentration of 63.0 ng/mL in healthy condition, and at 218.2 ng/mL after stimulation of lipopolysaccharide.
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Affiliation(s)
- Shinji Sakamoto
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama City, Japan
| | - Mika Kirinashizawa
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama City, Japan
| | - Yumi Mohara
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama City, Japan
| | - Yoshihiro Watanabe
- Pharmaceutical Frontier Research Laboratories, Japan Tobacco Inc., Yokohama City, Japan
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Ohara S, Qafzezi E, Barolli A, Sakamoto S, Liu Y, Barolli L. WMN-PSODGA - An Intelligent Hybrid Simulation System for WMNs Considering Load Balancing. International Journal of Distributed Systems and Technologies 2020. [DOI: 10.4018/ijdst.2020100103] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Wireless mesh networks (WMNs) are becoming an important networking infrastructure because they have many advantages, such as low cost and increased high-speed wireless Internet connectivity. In the authors' previous work, they implemented a hybrid simulation system based on particle swarm optimization (PSO) and distributed genetic algorithm (DGA), called WMN-PSODGA. Moreover, they added to the fitness function a new parameter for mesh router load balancing a number of covered mesh clients per router (NCMCpR). In this article, the authors consider Exponential, Weibull, and Normal distributions of mesh clients and carry out a comparison study. The simulation results show that the performance of the Exponential, Weibull and Normal distributions was improved by considering load balancing when using WMN-PSODGA. For the same number of mesh clients, the Normal distribution behaves better than the other distributions. This is because all mesh clients are covered by a smaller number of mesh routers and the standard deviation is improved by effectively using NCMCpR.
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Affiliation(s)
- Seiji Ohara
- Fukuoka Institute of Technology, Fukuoka, Japan
| | | | - Admir Barolli
- Aleksander Moisiu University of Durres, Durres, Albania
| | | | - Yi Liu
- Fukuoka Institute of Technology, Fukuoka, Japan
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Komiya A, Sakamoto S, Imamura Y, Sugiura M, Kato M, Baba H, Nakamura K, Ichikawa T. Presence of compensated and primary hypogonadism is related to ISUP Grade Groups 3-5 prostate cancer diagnosis. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)32624-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Kashihara J, Sakamoto S. Exploring perceived costs and benefits of first aid for youth with depression: a qualitative study of Japanese undergraduates. Int J Ment Health Syst 2020; 14:34. [PMID: 32489419 PMCID: PMC7247138 DOI: 10.1186/s13033-020-00366-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Accepted: 05/16/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Early interventions for depression among youth are greatly needed. Although Youth Mental Health First Aid (YMHFA) program has been developed to teach the public how to help young people with mental disorders, including depression, it has assumed human altruism and overlooked the possibility that participants would experience conflict between the costs and benefits of helping behaviors. The present qualitative study, therefore, initially explored content of the costs and benefits perceived by youth in terms of helping their peers with depression. METHODS A total of 56 Japanese undergraduates (32 female, 24 male; M age = 20.20, SD = 1.09) participated in the face-to-face survey. They were provided with basic knowledge about helping behaviors and were presented with a vignette describing an undergraduate with depression. Then, they left free descriptive comments on their views of the costs/benefits of helping/not helping the person in the vignette. As supplemental quantitative analyses, we statistically compared numbers of labels (n = 624), which were obtained from participants' comments, across two (costs/benefits) × two (helping/not helping) domains. Finally, we conducted a qualitative content analysis that combined inductive and deductive methods to categorize these labels. RESULTS The supplemental quantitative analyses (i.e., ANOVA and post hoc analyses) on the numbers of labels highlighted that the participants perceived suppressors (i.e., costs of helping, benefits of not helping) as well as motivators (i.e., costs of not helping) in making decision to help peers with depression. The qualitative content analysis mainly showed that: (i) the categories in each domain covered multiple facets of costs and benefits, including negative/positive effects on the participants themselves, the person in the vignette, and interpersonal relationships; and that (ii) the participants perceived the conflicts of costs and benefits regardless of whether they help their peers with depression. CONCLUSIONS These results provide evidence for how young people experience the conflicts between the costs and benefits of helping behaviors toward their peers with depression and reveal specific content of these costs and benefits. These findings could serve as a basis for extending YMHFA programs and designing educational content to promote public helping behaviors in realistic situations.
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Affiliation(s)
- Jun Kashihara
- College of Humanities and Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo, 156-8550 Japan
- Melbourne School of Population and Global Health, The University of Melbourne, 235 Bouverie St, Carlton, VIC 3053 Australia
- Japan Society for the Promotion of Science, Kojimachi Business Center Building, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo, 102-0083 Japan
- Present Address: Faculty of Sociology, Toyo University, 5-28-20 Hakusan, Bunkyo-ku, Tokyo, 112-8606 Japan
| | - Shinji Sakamoto
- College of Humanities and Sciences, Nihon University, 3-25-40 Sakurajosui, Setagaya-ku, Tokyo, 156-8550 Japan
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Affiliation(s)
| | - Kazumasa Kotake
- Okayama Saiseikai General Hospital; Department of Pharmacy; Kita-Ku Okayama Japan
| | - Norio Watanabe
- Kyoto University Graduate School of Medicine/School of Public Health; Department of Health Promotion and Human Behavior; Yoshida Konoe-cho, Sakyo-ku Kyoto Kyoto Japan 606-8501
| | - Takashi Fujiwara
- Kurashiki Central Hospital; Department of Otolaryngology; 1-1-1 Miwa Kurashiki Okayama Japan 710-8602
| | - Shinji Sakamoto
- Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences; Department of Neuropsychiatry; Okayama Okayama Japan
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Obayashi Y, Mitsui S, Sakamoto S, Minao N, Yoshimura B, Kono T, Yada Y, Okahisa Y, Takao S, Kishi Y, Takeda T, Takaki M, Yamada N. Switching strategies for antipsychotic monotherapy in schizophrenia: a multi-center cohort study of aripiprazole. Psychopharmacology (Berl) 2020; 237:167-175. [PMID: 31624859 DOI: 10.1007/s00213-019-05352-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 08/15/2019] [Indexed: 12/19/2022]
Abstract
RATIONALE Changing antipsychotics of patients with chronic schizophrenia involves several risks. Switching to aripiprazole is especially difficult. We investigated switching methods and related factors for successful switching patients with chronic schizophrenia to aripiprazole. OBJECTIVES This study was a multi-center historical cohort study and approved by the research ethics committee of Okayama University Hospital and Okayama Psychiatric Medical Center. We compared survival proportions of 178 chronic schizophrenia patients who continued aripiprazole monotherapy for 6 months after non-direct switching (add-on switching (n = 45), cross switching (n = 62)) or direct switching (n = 71). We adjusted possible confounders using a Cox proportional hazards model. RESULTS Of patients with chronic schizophrenia, 56.7% (101/178) were switched to aripiprazole monotherapy, and 55.0% (98/178) showed improvement in symptoms as demonstrated by the Clinical Global Impression Severity score. Kaplan-Meier survival curves showed that non-direct switching had a higher survival proportion than direct switching (log-rank test, p = 0.012). Even after adjusting for several variables using a Cox proportional hazards model, add-on switching had a significantly lower hazard at 6 months than direct switching (hazard ratio 0.42, 95% confidence interval 0.21-0.82, P = 0.01). In cases of switching to aripiprazole for psychiatric symptoms, non-direct switching had a lower hazard than direct switching (hazard ratio 0.41, 95% confidence interval 0.21-0.81, P = 0.01) but was not significant for adverse reaction. When aripiprazole was switched from olanzapine, add-on switch showed the lowest hazard ratio for continuation (hazard ratio 0.29, 95% confidence interval 0.07-1.11, P = 0.07). CONCLUSIONS Flexibility in strategies when switching to aripiprazole may induce a better outcome for patients with chronic schizophrenia.
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Affiliation(s)
- Yoshiaki Obayashi
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
- Department of Psychiatry, Okayama Psychiatric Medical Center, Okayama, Japan
- Department of Psychiatry, Zikei Hospital, Okayama, Japan
- Department of Psychiatry, Fukuyama Kokorono Hospital, Fukuyama, Japan
| | - Satoshi Mitsui
- Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Nozomu Minao
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Bunta Yoshimura
- Department of Psychiatry, Okayama Psychiatric Medical Center, Okayama, Japan
| | - Toshiki Kono
- Department of Psychiatry, Okayama Psychiatric Medical Center, Okayama, Japan
| | - Yuji Yada
- Department of Psychiatry, Okayama Psychiatric Medical Center, Okayama, Japan
| | - Yuko Okahisa
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Soshi Takao
- Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yoshiki Kishi
- Department of Psychiatry, Okayama Psychiatric Medical Center, Okayama, Japan
| | | | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan.
| | - Norihito Yamada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Takenaka D, Ohno Y, Tanaka C, Matsushiro E, Higashida A, Hashimoto T, Maeda H, Sakamoto S, Satouchi M. EP1.01-50 Quantitative Assessment of Subsegmental Bronchi on Thin-Section CT for Pulmonary Lymphangitis Carcinomatosa. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kawai H, Takaki M, Sakamoto S, Shibata T, Tsuchida A, Yoshimura B, Yada Y, Matsumoto N, Sato K, Abe K, Okahisa Y, Kishi Y, Takao S, Tsutsui K, Kanbayashi T, Tanaka K, Yamada N. Anti-NMDA-receptor antibody in initial diagnosis of mood disorder. Eur Neuropsychopharmacol 2019; 29:1041-1050. [PMID: 31358437 DOI: 10.1016/j.euroneuro.2019.07.137] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 06/15/2019] [Accepted: 07/15/2019] [Indexed: 12/11/2022]
Abstract
Anti-NMDAR encephalitis is increasingly recognized as one etiology of psychiatric symptoms, but there is not enough evidence on patients with mood disorder. We assayed anti-NR1/NR2B IgG antibodies in serum and/or cerebrospinal fluid of 62 patients initially diagnosed with mood disorder by a cell-based assay. We also investigated the specific patient characteristics and psychotic symptoms. At first admission, the patients showed only psychiatric symptoms without typical neurological signs or abnormal examination findings. Four of the 62 patients had anti-NR1/NR2B IgG antibodies. The anti-NR1/NR2B IgG antibody-positive patients showed more super- or abnormal sensitivity (P = 0.00088), catatonia (P = 0.049), and more conceptual disorganization (P < 0.0001), hostility (P = 0.0010), suspiciousness (P < 0.0001), and less emotional withdrawal (P < 0.0001) and motor retardation (P < 0.0001) on the Brief Psychiatric Rating Scale than the antibody-negative patients. During the clinical course, anti-NR1/NR2B IgG antibody-positive patients showed more catatonia (P = 0.0042) and met Graus's criteria for diagnosis of anti-NMDAR encephalitis, but negative patients did not. Immunotherapy was effective for anti-NR1/NR2B IgG antibody-positive patients, and there was the weak relationship (R² = 0.318) between the anti-NR1/NR2B IgG antibody titer in the cerebrospinal fluid and the Brief Psychiatric Rating Scale score.
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Affiliation(s)
- Hiroki Kawai
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan.
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Takashi Shibata
- Department of Child Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Ayaka Tsuchida
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Bunta Yoshimura
- Department of Psychiatry, Okayama Psychiatric Medical Center, Japan
| | - Yuji Yada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan; Department of Psychiatry, Okayama Psychiatric Medical Center, Japan
| | - Namiko Matsumoto
- Department of Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Kota Sato
- Department of Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Koji Abe
- Department of Neurology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Yuko Okahisa
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
| | - Yoshiki Kishi
- Department of Psychiatry, Okayama Psychiatric Medical Center, Japan
| | - Soshi Takao
- Department of Epidemiology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Japan
| | - Ko Tsutsui
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Japan
| | - Takashi Kanbayashi
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Japan; International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Japan
| | - Keiko Tanaka
- Brain Research Institute, Niigata University Graduate School of Medicine, Japan
| | - Norihito Yamada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8558, Japan
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Kashihara J, Yamakawa I, Kameyama A, Muranaka M, Taku K, Sakamoto S. Perceptions of traditional and modern types of depression: A cross-cultural vignette survey comparing Japanese and American undergraduate students. Psychiatry Clin Neurosci 2019; 73:441-447. [PMID: 30854726 DOI: 10.1111/pcn.12838] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/21/2019] [Accepted: 03/07/2019] [Indexed: 11/29/2022]
Abstract
AIM Depression is a heterogeneous disorder that has various subtypes. In Japan, however, a prevailing misunderstanding is that the term utsu-byo (clinical depression) indicates only the melancholic type. Consequently, a subtype called 'modern-type depression' (MTD), which has contrasting features to those of melancholic or traditional-type depression (TTD), is severely stigmatized in Japan these days. The present study conducted a cross-cultural comparison of perceptions of TTD and MTD between Japan and the USA to examine how the Japanese collectivistic culture contributes to negative biases toward MTD. METHODS Undergraduate students in Japan (N = 303) and the Midwestern USA (N = 272) completed the survey. They read two vignettes that described the conditions of fictional individuals with either TTD or MTD, and then reported their perceptions of each vignette. RESULTS Mixed analyses of variance revealed significant interactions between nation (Japan or the USA) and vignette (TTD or MTD) on most perception items. These interactions and subsequent analyses with Bonferroni corrections mainly indicate the following: (i) Japanese are more likely to suppose that conditions of MTD are milder compared with TTD; and (ii) Japanese are more likely to hold stronger aversive attitudes and weaker willingness to provide support toward people with MTD than toward those with TTD. CONCLUSION These results indicate that people with MTD are more likely to be accepted in the US independent culture than in the Japanese collectivistic culture. Discussion highlights that cultural diversity education potentially reduces stigma of MTD in Japan.
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Affiliation(s)
- Jun Kashihara
- Department of Psychology, College of Humanities and Sciences, Nihon University, Tokyo, Japan.,Population Mental Health Group, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Australia.,Japan Society for the Promotion of Science, Tokyo, Japan
| | - Itsuki Yamakawa
- Department of Psychology, College of Humanities and Sciences, Nihon University, Tokyo, Japan
| | - Akiko Kameyama
- Department of Psychology, College of Humanities and Sciences, Nihon University, Tokyo, Japan
| | - Masaki Muranaka
- Faculty of Social Welfare, Department of Psychology in Social Welfare, Shizuoka University of Welfare, Yaizu, Japan
| | - Kanako Taku
- Department of Psychology, College of Arts and Sciences, Oakland University, Rochester, USA
| | - Shinji Sakamoto
- Department of Psychology, College of Humanities and Sciences, Nihon University, Tokyo, Japan
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Kato TA, Katsuki R, Kubo H, Shimokawa N, Sato-Kasai M, Hayakawa K, Kuwano N, Umene-Nakano W, Tateno M, Setoyama D, Kang D, Watabe M, Sakamoto S, Teo AR, Kanba S. Development and validation of the 22-item Tarumi's Modern-Type Depression Trait Scale: Avoidance of Social Roles, Complaint, and Low Self-Esteem (TACS-22). Psychiatry Clin Neurosci 2019; 73:448-457. [PMID: 30900331 PMCID: PMC6850625 DOI: 10.1111/pcn.12842] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 03/13/2019] [Accepted: 03/19/2019] [Indexed: 12/12/2022]
Abstract
AIM Understanding premorbid personality is important, especially when considering treatment selection. Historically, the premorbid personality of patients with major depression in Japan was described as Shuchaku-kishitsu [similar to Typus melancholicus], as proposed by Shimoda in the 1930s. Since around 2000, there have been increased reports in Japan of young adults with depression who have had premorbid personality differing from the traditional type. In 2005, Tarumi termed this novel condition 'dysthymic-type depression,' and more recently the condition has been called Shin-gata/Gendai-gata Utsu-byo [modern-type depression (MTD)]. We recently developed a semi-structured diagnostic interview to evaluate MTD. Development of a tool that enables understanding of premorbid personality in a short time, especially at the early stage of treatment, is desirable. The object of this study was to develop a self-report scale to evaluate the traits of MTD, and to assess the scale's psychometric properties, diagnostic accuracy, and biological validity. METHODS A sample of 340 participants from clinical and community settings completed measures. Psychometric properties were assessed with factor analysis. Diagnostic accuracy of the MTD traits was compared against a semi-structured interview. RESULTS The questionnaire contained 22 items across three subscales, thus we termed it the 22-item Tarumi's Modern-Type Depression Trait Scale: Avoidance of Social Roles, Complaint, and Low Self-Esteem (TACS-22). Internal consistency, test-retest reliability, and convergent validity were all satisfactory. Among patients with major depression, the area under the curve was 0.757 (sensitivity of 63.1% and specificity of 82.9%) and the score was positively correlated with plasma tryptophan. CONCLUSION The TACS-22 possessed adequate psychometric properties and diagnostic accuracy in an initial sample of Japanese adults. Additional research on its ability to support clinical assessment of MTD is warranted.
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Affiliation(s)
- Takahiro A Kato
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Ryoko Katsuki
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hiroaki Kubo
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Norihiro Shimokawa
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mina Sato-Kasai
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kohei Hayakawa
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Nobuki Kuwano
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Wakako Umene-Nakano
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masaru Tateno
- Tokiwa Child Development Center, Tokiwa Hospital, Sapporo, Japan.,Department of Neuropsychiatry, School of Medicine, Sapporo Medical University, Sapporo, Japan
| | - Daiki Setoyama
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Dongchon Kang
- Department of Clinical Chemistry and Laboratory Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Motoki Watabe
- School of Business, Monash University, Bandar Sunway, Malaysia
| | - Shinji Sakamoto
- Department of Psychology, College of Humanities and Sciences, Nihon University, Tokyo, Japan
| | - Alan R Teo
- VA Portland Health Care System, HSR&D Center to Improve Veteran Involvement in Care, Portland, USA.,Department of Psychiatry, Oregon Health & Science University, Portland, USA.,School of Public Health, Oregon Health & Science University, Portland, USA.,School of Public Health, Portland State University, Portland, USA
| | - Shigenobu Kanba
- Department of Neuropsychiatry, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Sakamoto S, Kawai H, Okahisa Y, Tsutsui K, Kanbayashi T, Tanaka K, Mizuki Y, Takaki M, Yamada N. Anti-N-Methyl-D-Aspartate Receptor Encephalitis in Psychiatry. Acta Med Okayama 2019; 73:189-195. [PMID: 31235965 DOI: 10.18926/amo/56860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is a recently-discovered autoimmune disorder in which antibodies target NMDAR in the brain. The number of reported cases of anti-NMDAR encephalitis has increased rapidly. Anti-NMDAR encephalitis can be mistakenly diagnosed as psychiatric disorders because many patients present with prominent psychiatric symptoms and visit psychiatric institutions first. Thus, psychiatrists should cultivate a better understanding of anti-NMDAR encephalitis. In this review, we present the mechanisms, epidemiology, symptoms and clinical course, diagnostic tests, treatment and outcomes of patients with anti-NMDAR encephalitis. Furthermore, we discuss the diversity of clinical spectra of anti-NMDAR encephalitis, and demonstrate a differential diagnosis of psychiatric disease from the perspective of psychiatry.
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Affiliation(s)
- Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558,
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Yoshimura B, Sakamoto S, Sato K, Takaki M, Yamada N. Predictors of remission during acute treatment of first-episode schizophrenia patients involuntarily hospitalized and treated with algorithm-based pharmacotherapy: Secondary analysis of an observational study. Early Interv Psychiatry 2019; 13:589-597. [PMID: 29498481 DOI: 10.1111/eip.12531] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 08/02/2017] [Revised: 10/13/2017] [Accepted: 11/08/2017] [Indexed: 12/24/2022]
Abstract
AIM Early clinical response predicts symptomatic remission and recovery in the maintenance treatment phase of first-episode schizophrenia (FES). However, little is known about predictors of symptomatic remission during acute treatment of severely ill patients with FES. Here, we conducted a secondary analysis of our retrospective observational study, which examined response, remission and treatment-resistance rates in seriously ill patients with FES spectrum disorders involuntarily hospitalized and treated with algorithm-based pharmacotherapy. METHODS We performed a retrospective chart review of 131 involuntarily admitted patients with schizophrenia or schizoaffective disorder. Our algorithm aimed to delay olanzapine treatment, standardize medications and suggest initiation of clozapine after failure of third-line antipsychotic treatment. The duration of each adequate antipsychotic treatment at an optimal dosage was 4 weeks or more. Remission was defined using the symptom-severity component of consensus remission criteria. A logistic regression model was applied to identify significant predictors of remission at discharge. RESULTS Overall, 74 patients (56%) were in remission at discharge. Non-remitters were hampered from becoming remitters mainly by the presence of negative symptoms. There were no differences in first-line antipsychotics, dosage of antipsychotics at time of response and adherence rates to algorithm-based pharmacotherapy between remitters and non-remitters. Shorter duration of untreated psychosis, favourable early response and less negative symptoms at baseline were identified as independent predictors of remission at discharge. CONCLUSIONS The importance of early intervention and specific and adequate treatments of negative symptoms is highlighted.
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Affiliation(s)
- Bunta Yoshimura
- Department of Psychiatry, Okayama Psychiatric Medical Center, Okayama, Japan.,Department of Psychiatry, Okinawa Miyako Hospital, Miyakojima, Japan.,Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Kojiro Sato
- Department of Psychiatry, Okayama Psychiatric Medical Center, Okayama, Japan
| | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Norihito Yamada
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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Komakura K, Oikawa D, Terawaki S, Sakamoto S, Mizukami Y, Sugawara K, Tsuruta D, Tokunaga F. 459 HOIPIN-1, a novel LUBAC inhibitor, suppresses the imiquimod-induced psoriasis-like skin inflammation in mice. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sakaguchi C, Ashida K, Yano S, Ohe K, Wada N, Hasuzawa N, Matsuda Y, Sakamoto S, Sakamoto R, Uchi H, Furue M, Nomura M, Ogawa Y. A case of nivolumab-induced acute-onset type 1 diabetes mellitus in melanoma. ACTA ACUST UNITED AC 2019; 26:e115-e118. [PMID: 30853818 DOI: 10.3747/co.26.4130] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Nivolumab, an anti-PD-1 antibody, is now considered an important therapeutic agent in several advanced malignancies. However, immune-related adverse events such as endocrinopathies have been reported with its use. Thyroid disorder and isolated adrenocorticotropic hormone deficiency have frequently been reported as nivolumab-induced immune-related adverse events. Another endocrinopathy is nivolumab-induced type 1 diabetes mellitus (t1dm), described as diabetes mellitus with rapid onset and complete insulin insufficiency, at times leading to fulminant t1dm. We report the case of a 68-year-old woman who developed pancreatic islet-related autoantibody-negative t1dm, possibly induced by nivolumab, under continuous glucocorticoid administration. She was treated with nivolumab for advanced malignant melanoma, concomitant with 10 mg prednisolone daily for thrombophlebitis tapered to 5 mg after 13 courses of nivolumab therapy. At approximately the 27th course of nivolumab therapy, she showed elevated plasma glucose levels despite preserved insulin secretion. A month later, she developed diabetic ketoacidosis. Her insulin secretion decreased and finally was exhausted. She was diagnosed with acute-onset rather than fulminant t1dm because of a rapidly progressive course to diabetic ketoacidosis during just more than 1 week. She is currently receiving insulin replacement. There has been no recurrence of the melanoma. Thus, nivolumab might induce autoimmune diabetes mellitus, with patients having t1dm-sensitive human leucocyte antigen being more susceptible even when receiving glucocorticoids. Physicians should be aware that nivolumab could potentially induce t1dm as a critical immune-related adverse event.
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Affiliation(s)
- C Sakaguchi
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - K Ashida
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan.,Division of Endocrinology and Metabolism, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan
| | - S Yano
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - K Ohe
- Faculty of Pharmaceutical Sciences, Fukuoka University, Japan
| | - N Wada
- Department of Dermatology, Kyushu University Hospital, Fukuoka City, Japan
| | - N Hasuzawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan.,Division of Endocrinology and Metabolism, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Y Matsuda
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - S Sakamoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - R Sakamoto
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
| | - H Uchi
- Department of Dermatology, Kyushu University Hospital, Fukuoka City, Japan
| | - M Furue
- Department of Dermatology, Kyushu University Hospital, Fukuoka City, Japan
| | - M Nomura
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan.,Division of Endocrinology and Metabolism, Department of Internal Medicine, Kurume University School of Medicine, Kurume, Japan
| | - Y Ogawa
- Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka City, Japan
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Yoshimura B, Sato K, Sakamoto S, Tsukahara M, Yoshimura Y, So R. Incidence and predictors of acute akathisia in severely ill patients with first-episode schizophrenia treated with aripiprazole or risperidone: secondary analysis of an observational study. Psychopharmacology (Berl) 2019; 236:723-730. [PMID: 30443794 DOI: 10.1007/s00213-018-5101-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 10/31/2018] [Indexed: 11/27/2022]
Abstract
RATIONALE In the antipsychotic treatment of schizophrenia with little medication history, especially in drug-naïve cases, predictors of side effects are important. However, predictors of antipsychotic-induced akathisia remain unclear. OBJECTIVES This study aimed to investigate the incidence and predictors of acute akathisia in severely ill patients with first-episode schizophrenia spectrum disorders (FES). METHODS This is a secondary analysis of our retrospective observational study. Data were obtained from 129 consecutive patients with FES involuntarily hospitalized in a tertiary psychiatric public hospital and treated with aripiprazole or risperidone. The primary outcome was the presence of acute akathisia during the first 1 month. A Cox proportional hazard model was used to examine significant predictors of the onset of akathisia. RESULTS Acute akathisia was diagnosed in 54 patients (42%). Neither antipsychotics (aripiprazole or risperidone), duration of untreated psychosis, iron deficiency, sex, age nor baseline symptomatic severity was identified as an independent predictor of akathisia. Rapid risperidone initiation significantly increased the onset of akathisia (adjusted hazard ratio [HR], 6.47; 95%; 95% confidence interval [CI], 1.94-21.65; p = 0.002), but rapid aripiprazole initiation did not (adjusted HR, 1.08; 95% CI, 0.50-2.31; p = 0.84). A significant interaction was found between rapid antipsychotic initiation and the risk of akathisia with aripiprazole versus risperidone (p = 0.027). CONCLUSIONS Severely ill patients with FES initiating aripiprazole or risperidone could have a high risk for akathisia. Rapid risperidone initiation should be avoided because of the risk for akathisia, and careful monitoring of akathisia may be necessary for all patients initiating aripiprazole.
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Affiliation(s)
- Bunta Yoshimura
- Department of Psychiatry, Okayama Psychiatric Medical Center, 3-16 Shikatahonmachi, Kita-ku, Okayama City, 700-0915, Japan
| | - Kojiro Sato
- Department of Psychiatry, Okayama Psychiatric Medical Center, 3-16 Shikatahonmachi, Kita-ku, Okayama City, 700-0915, Japan
| | - Shinji Sakamoto
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Masaru Tsukahara
- Department of Psychiatry, Okayama Psychiatric Medical Center, 3-16 Shikatahonmachi, Kita-ku, Okayama City, 700-0915, Japan
| | | | - Ryuhei So
- Department of Psychiatry, Okayama Psychiatric Medical Center, 3-16 Shikatahonmachi, Kita-ku, Okayama City, 700-0915, Japan.
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Oshiro R, Kopitz J, Soejima T, Kibi S, Kamibeppu K, Sakamoto S, Taku K. Perceptions of positive and negative changes for posttraumatic growth and depreciation: Judgments from Japanese undergraduates. Personality and Individual Differences 2019. [DOI: 10.1016/j.paid.2018.07.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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50
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Barolli L, Ikeda M, Sakamoto S, Bylykbashi K, Inaba T, Ozera K. A WLAN triage testbed based on fuzzy logic and its performance evaluation for different number of clients and throughput parameter. IJGUC 2019. [DOI: 10.1504/ijguc.2019.10018615] [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: 11/21/2022]
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