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Ishido H, Chiba S, Takahashi H, Isa M, Ogawa Y, Kubota H, Imanishi A, Omori Y, Ono T, Tsutsui K, Han G, Kondo H, Tsuji H, Nakamagoe K, Ishii A, Tanaka K, Tamaoka A, Shimizu T, Nishino S, Miyamoto T, Kanbayashi T. Characteristics of hypersomnia due to inflammatory demyelinating diseases of the central nervous system. BMJ Neurol Open 2023; 5:e000428. [PMID: 37396796 PMCID: PMC10314432 DOI: 10.1136/bmjno-2023-000428] [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] [Received: 02/28/2023] [Accepted: 06/06/2023] [Indexed: 07/04/2023] Open
Abstract
Background Neuromyelitis optica spectrum disorder (NMOSD) diagnostic criteria for inflammatory demyelinating central nervous system diseases included symptomatic narcolepsy; however, no relevant case-control studies exist. We aimed to examine the relationship among cerebrospinal fluid orexin-A (CSF-OX) levels, cataplexy and diencephalic syndrome; determine risk factors for low-and-intermediate CSF-OX levels (≤200 pg/mL) and quantify hypothalamic intensity using MRI. Methods This ancillary retrospective case-control study included 50 patients with hypersomnia and 68 controls (among 3000 patients) from Akita University, the University of Tsukuba and community hospitals (200 facilities). Outcomes were CSF-OX level and MRI hypothalamus-to-caudate-nucleus-intensity ratio. Risk factors were age, sex, hypersomnolence and MRI hypothalamus-to-caudate-nucleus-intensity ratio >130%. Logistic regression was performed for the association between the risk factors and CSF-OX levels ≤200 pg/mL. Results The hypersomnia group (n=50) had significantly more cases of NMOSD (p<0.001), diencephalic syndrome (p=0.006), corticosteroid use (p=0.011), hypothalamic lesions (p<0.023) and early treatment (p<0.001). No cataplexy occurred. In the hypersomnia group, the median CSF-OX level was 160.5 (IQR 108.4-236.5) pg/mL and median MRI hypothalamus-to-caudate-nucleus-intensity ratio was 127.6% (IQR 115.3-149.1). Significant risk factors were hypersomnolence (adjusted OR (AOR) 6.95; 95% CI 2.64 to 18.29; p<0.001) and MRI hypothalamus-to-caudate-nucleus-intensity ratio >130% (AOR 6.33; 95% CI 1.18 to 34.09; p=0.032). The latter was less sensitive in predicting CSF-OX levels ≤200 pg/mL. Cases with MRI hypothalamus-to-caudate-nucleus-intensity ratio >130% had a higher rate of diencephalic syndrome (p<0.001, V=0.59). Conclusions Considering orexin as reflected by CSF-OX levels and MRI hypothalamus-to-caudate-nucleus-intensity ratio may help diagnose hypersomnia with diencephalic syndrome.
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Affiliation(s)
- Hideaki Ishido
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki, Japan
- Neurology, Dokkyo Ika Daigaku Saitama Iryo Center, Koshigaya, Saitama, Japan
- Neurology, Hakusuikai Hatsuishi Hospital, Kashiwa, Chiba, Japan
| | - Shigeru Chiba
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki, Japan
- Psychiatry, Ibaraki Prefectural Medical Center of Psychiatry, Kasama, Ibaraki, Japan
- Psychiatry, Minamisaitama Hospital, Koshigaya, Saitama, Japan
| | - Hana Takahashi
- Neurology, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Megumi Isa
- Neurology, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - Yasuhiro Ogawa
- General Medicine, Ibaraki Prefectural University of Health Sciences, Inashiki-gun, Ibaraki, Japan
| | | | - Aya Imanishi
- Psychiatry, Akita University, Akita, Akita, Japan
| | - Yuki Omori
- Psychiatry, Tokyo Metropolitan Geriatric Hospital, Itabashi-ku, Tokyo, Japan
| | - Taisuke Ono
- Geriatric Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Ko Tsutsui
- Psychiatry, Akita University, Akita, Akita, Japan
- Psychiatry, Kato Hospital, Akita, Akita, Japan
| | - GoEun Han
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Hideaki Kondo
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki, Japan
- General Medicine, Institute of Biomedical Sciences, Nagasaki University, Nagasaki, Nagasaki, Japan
| | - Hiroshi Tsuji
- Neurology, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | | | - Akiko Ishii
- Neurology, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Keiko Tanaka
- Department of Animal Model Development, Brain Research Institute, Niigata University, Niigata, Niigata, Japan
| | - Akira Tamaoka
- Neurology, University of Tsukuba, Tsukuba, Ibaraki, Japan
- Neurology, Tsukuba Memorial Hospital, Tsukuba, Ibaraki, Japan
| | - Tetsuo Shimizu
- Department of Mental Health and Welfare, Akita Mental Health and Welfare Center, Akita, Akita, Japan
| | - Seiji Nishino
- Psychiatry, Sleep and Circadian Neurobiology Laboratory, Stanford University, Stanford, California, USA
| | - Tomoyuki Miyamoto
- Neurology, Dokkyo Ika Daigaku Saitama Iryo Center, Koshigaya, Saitama, Japan
| | - Takashi Kanbayashi
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Ibaraki, Japan
- Neurology, Dokkyo Ika Daigaku Saitama Iryo Center, Koshigaya, Saitama, Japan
- Psychiatry, Ibaraki Prefectural Medical Center of Psychiatry, Kasama, Ibaraki, Japan
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Tsutsui K, Nemoto M, Kono M, Sato T, Yoshizawa Y, Yumoto Y, Nakagawa R, Iwamoto T, Wada H, Sasaki T. GC-MS analysis of exhaled gas for fine detection of inflammatory diseases. Anal Biochem 2023; 671:115155. [PMID: 37059321 DOI: 10.1016/j.ab.2023.115155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 04/04/2023] [Accepted: 04/12/2023] [Indexed: 04/16/2023]
Abstract
Exhaled gas analysis is a non-invasive test ideal for continuous monitoring of biological metabolic information. We analyzed the exhaled gas of patients with inflammatory diseases for trace gas components that could serve as biomarkers that enable early detection of inflammatory diseases and assessment of treatment efficacy. Furthermore, we examined the clinical potential of this method. We enrolled 34 patients with inflammatory disease and 69 healthy participants. Volatile components from exhaled gas were collected and analyzed by a gas chromatography-mass spectrometry system, and the data were examined for gender, age, inflammatory markers, and changes in markers before and after treatment. The data were tested for statistical significance through discriminant analysis by Volcano plot, Analysis of variance test, principal component analysis, and cluster analysis comparing healthy and patient groups. There were no significant differences in the trace components of exhaled gas by gender or age. However, we found differences in some components of the exhaled gas between healthy and untreated patients. In addition, after treatment, gas patterns including the patient-specific components changed to a state closer to the inflammation-free status. We identified trace components in the exhaled gas of patients with inflammatory diseases and found that some of these regressed after treatment.
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Affiliation(s)
- K Tsutsui
- Department of General Internal Medicine, Katsushika Medical Center, The Jikei University School of Medicine, Japan
| | - M Nemoto
- Department of General Internal Medicine, Katsushika Medical Center, The Jikei University School of Medicine, Japan.
| | - M Kono
- Institute of Clinical Medicine and Research, The Jikei University School of Medicine, Japan; Department of Laboratory Medicine, The Jikei University School of Medicine, Japan
| | - T Sato
- Institute of Clinical Medicine and Research, The Jikei University School of Medicine, Japan; Faculty of Pharmaceutical Sciences, Tokyo University of Science, Japan
| | - Y Yoshizawa
- Institute of Clinical Medicine and Research, The Jikei University School of Medicine, Japan
| | - Y Yumoto
- Institute of Clinical Medicine and Research, The Jikei University School of Medicine, Japan
| | | | - T Iwamoto
- Core Research Facilities for Basic Science, The Jikei University School of Medicine, Japan
| | - H Wada
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Japan
| | - T Sasaki
- Institute of Clinical Medicine and Research, The Jikei University School of Medicine, Japan; Sasaki Institute, Sasaki Foundation, Japan
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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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Ichijo R, Kabata M, Kidoya H, Muramatsu F, Ishibashi R, Abe K, Tsutsui K, Kubo H, Iizuka Y, Kitano S, Miyachi H, Kubota Y, Fujiwara H, Sada A, Yamamoto T, Toyoshima F. Vasculature-driven stem cell population coordinates tissue scaling in dynamic organs. Sci Adv 2021; 7:eabd2575. [PMID: 33568475 PMCID: PMC7875541 DOI: 10.1126/sciadv.abd2575] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 12/28/2020] [Indexed: 06/12/2023]
Abstract
Stem cell (SC) proliferation and differentiation organize tissue homeostasis. However, how SCs regulate coordinate tissue scaling in dynamic organs remain unknown. Here, we delineate SC regulations in dynamic skin. We found that interfollicular epidermal SCs (IFESCs) shape basal epidermal proliferating clusters (EPCs) in expanding abdominal epidermis of pregnant mice and proliferating plantar epidermis. EPCs consist of IFESC-derived Tbx3+-basal cells (Tbx3+-BCs) and their neighboring cells where Adam8-extracellular signal-regulated kinase signaling is activated. Clonal lineage tracing revealed that Tbx3+-BC clones emerge in the abdominal epidermis during pregnancy, followed by differentiation after parturition. In the plantar epidermis, Tbx3+-BCs are sustained as long-lived SCs to maintain EPCs invariably. We showed that Tbx3+-BCs are vasculature-dependent IFESCs and identified mechanical stretch as an external cue for the vasculature-driven EPC formation. Our results uncover vasculature-mediated IFESC regulations, which explain how the epidermis adjusts its size in orchestration with dermal constituents in dynamic skin.
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Affiliation(s)
- Ryo Ichijo
- Department of Biosystems Science, Institute for Frontier Life and Medical Science, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Mio Kabata
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Hiroyasu Kidoya
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Fumitaka Muramatsu
- Department of Signal Transduction, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Riki Ishibashi
- Department of Biosystems Science, Institute for Frontier Life and Medical Science, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Kota Abe
- Department of Biosystems Science, Institute for Frontier Life and Medical Science, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
- Department of Mammalian Regulatory Network, Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Ko Tsutsui
- Laboratory for Tissue Microenvironment, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan
| | - Hirokazu Kubo
- Department of Biosystems Science, Institute for Frontier Life and Medical Science, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
- Department of Mammalian Regulatory Network, Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Yui Iizuka
- Department of Biosystems Science, Institute for Frontier Life and Medical Science, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
- Department of Mammalian Regulatory Network, Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
| | - Satsuki Kitano
- Department of Biosystems Science, Institute for Frontier Life and Medical Science, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Hitoshi Miyachi
- Department of Biosystems Science, Institute for Frontier Life and Medical Science, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yoshiaki Kubota
- Department of Anatomy, Keio University School of Medicine, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Hironobu Fujiwara
- Laboratory for Tissue Microenvironment, RIKEN Center for Biosystems Dynamics Research (BDR), Kobe 650-0047, Japan
| | - Aiko Sada
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Ibaraki 305-8577, Japan
- International Research Center for Medical Sciences (IRCMS), Kumamoto University, Kumamoto 860-0811, Japan
| | - Takuya Yamamoto
- Department of Life Science Frontiers, Center for iPS Cell Research and Application (CiRA), Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
- Institute for the Advanced Study of Human Biology (WPI-ASHBi), Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
- AMED-CREST, AMED 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004, Japan
- Medical-risk Avoidance based on iPS Cells Team, RIKEN Center for Advanced Intelligence Project (AIP), Kyoto 606-8507, Japan
| | - Fumiko Toyoshima
- Department of Biosystems Science, Institute for Frontier Life and Medical Science, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan.
- Department of Mammalian Regulatory Network, Graduate School of Biostudies, Kyoto University, Sakyo-ku, Kyoto 606-8502, Japan
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Manoochehri R, Jafarzadeh Shirazi MR, Akhlaghi A, Tsutsui K, Namavar MR, Zamiri MJ, Rezazadeh FM. The localization and expression of gonadotropin inhibitory hormone in the hypothalamus of turkey hens during the prepubertal, pubertal and postpubertal phases. Domest Anim Endocrinol 2021; 74:106486. [PMID: 32882449 DOI: 10.1016/j.domaniend.2020.106486] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/27/2020] [Accepted: 04/14/2020] [Indexed: 10/24/2022]
Abstract
Gonadotropin inhibitory hormone (GnIH), initially discovered in birds as a hypothalamic neuropeptide, inhibits the synthesis and release of gonadotropins by affecting GnRH neurons and gonadotropes. Therefore, it may be a key neuropeptide in reproduction in birds. The aim of the present study was to investigate the prepubertal, pubertal, and postpubertal localization of GnIH and changes in hypothalamic GnIH expression in British United Turkey hens. In prepubertal, pubertal, and postpubertal periods, the brains of turkey hens (n = 15) were removed after fixation. Sections (30 μm) were prepared from the entire hypothalamus and stained immunohistochemically against GnIH antibody. Gonadotropin inhibitory hormone-immunoreactive neurons were observed in the paraventricular nucleus. These neurons were significantly more abundant in the prepubertal turkeys than pubertal and postpubertal turkeys (P < 0.05). The results suggested that GnIH neurons have an important role in regulating the pubertal events in British United Turkey hens.
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Affiliation(s)
- R Manoochehri
- Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | | | - A Akhlaghi
- Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - K Tsutsui
- Laboratory of Integrative Brain Sciences, Department of Biology, Center for Medical Life Science, Waseda University, Tokyo 162-8480, Japan
| | - M R Namavar
- Department of Anatomy, Clinical Neurology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Anatomy, Histomorphometry and Stereology Research Centre, Shiraz University of Medical Sciences, Shiraz, Iran
| | - M J Zamiri
- Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran
| | - F M Rezazadeh
- Department of Animal Science, College of Agriculture, Shiraz University, Shiraz, Iran
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Imanishi A, Kawazoe T, Hamada Y, Kumagai T, Tsutsui K, Sakai N, Eto K, Noguchi A, Shimizu T, Takahashi T, Han G, Mishima K, Kanbayashi T, Kondo H. Early detection of Niemann-pick disease type C with cataplexy and orexin levels: continuous observation with and without Miglustat. Orphanet J Rare Dis 2020; 15:269. [PMID: 32993765 PMCID: PMC7523321 DOI: 10.1186/s13023-020-01531-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 09/07/2020] [Indexed: 12/30/2022] Open
Abstract
Study objectives Niemann-Pick type C (NPC) is an autosomal recessive and congenital neurological disorder characterized by the accumulation of cholesterol and glycosphingolipids. Symptoms include hepatosplenomegaly, vertical supranuclear saccadic palsy, ataxia, dystonia, and dementia. Some cases frequently display narcolepsy-like symptoms, including cataplexy which was reported in 26% of all NPC patients and was more often recorded among late-infantile onset (50%) and juvenile onset (38%) patients. In this current study, we examined CSF orexin levels in the 10 patients of NPC with and without cataplexy, which supports previous findings. Methods Ten patients with NPC were included in the study (5 males and 5 females). NPC diagnosis was biochemically confirmed in all 10 patients, from which 8 patients with NPC1 gene were identified. We compared CSF orexin levels among NPC, narcoleptic and idiopathic hypersomnia patients. Results Six NPC patients with cataplexy had low or intermediate orexin levels. In 4 cases without cataplexy, their orexin levels were normal. In 5 cases with Miglustat treatment, their symptoms stabilized or improved. For cases without Miglustat treatment, their conditions worsened generally. The CSF orexin levels of NPC patients were significantly higher than those of patients with narcolepsy-cataplexy and lower than those of patients with idiopathic hypersomnia, which was considered as the control group with normal CSF orexin levels. Discussion Our study indicates that orexin level measurements can be an early alert of potential NPC. Low or intermediate orexin levels could further decrease due to reduction in the neuronal function in the orexin system, accelerating the patients’ NPC pathophysiology. However with Miglustat treatment, the orexin levels stabilized or improved, along with other general symptoms. Although the circuitry is unclear, this supports that orexin system is indeed involved in narcolepsy-cataplexy in NPC patients. Conclusion The NPC patients with cataplexy had low or intermediate orexin levels. In the cases without cataplexy, their orexin levels were normal. Our study suggests that orexin measurements can serve as an early alert for potential NPC; furthermore, they could be a marker of therapy monitoring during a treatment.
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Affiliation(s)
- A Imanishi
- Department of Psychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - T Kawazoe
- Department of Neurology, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Y Hamada
- Department of Pediatrics, Toyonaka Municipal Hospital, Toyonaka, Japan
| | - T Kumagai
- National Center for Child Health and Development, Tokyo, Japan
| | - K Tsutsui
- Department of Psychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - N Sakai
- Division of Health Sciences, Osaka University Graduate School of Medicine, Osaka, Japan
| | - K Eto
- Department of Pediatrics, Tokyo Women's Medical University, Tokyo, Japan
| | - A Noguchi
- Department of Pediatrics, Akita University Graduate School of Medicine, Akita, Japan
| | - T Shimizu
- Akita Mental Health and Welfare Center, Akita, Japan
| | - T Takahashi
- Department of Pediatrics, Akita University Graduate School of Medicine, Akita, Japan
| | - G Han
- International Institute for Integrative Sleep Medicine (IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan
| | - K Mishima
- Department of Psychiatry, Akita University Graduate School of Medicine, Akita, Japan.,International Institute for Integrative Sleep Medicine (IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan
| | - T Kanbayashi
- International Institute for Integrative Sleep Medicine (IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan.
| | - H Kondo
- International Institute for Integrative Sleep Medicine (IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan
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7
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Elbitar S, Renard M, Arnaud P, Hanna N, Jacob MP, Guo DC, Tsutsui K, Gross MS, Kessler K, Tosolini L, Dattilo V, Dupont S, Jonquet J, Langeois M, Benarroch L, Aubart M, Ghaleb Y, Abou Khalil Y, Varret M, El Khoury P, Ho-Tin-Noé B, Alembik Y, Gaertner S, Isidor B, Gouya L, Milleron O, Sekiguchi K, Milewicz D, De Backer J, Le Goff C, Michel JB, Jondeau G, Sakai LY, Boileau C, Abifadel M. Pathogenic variants in THSD4, encoding the ADAMTS-like 6 protein, predispose to inherited thoracic aortic aneurysm. Genet Med 2020; 23:111-122. [PMID: 32855533 PMCID: PMC8559271 DOI: 10.1038/s41436-020-00947-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 08/11/2020] [Accepted: 08/11/2020] [Indexed: 11/28/2022] Open
Abstract
Purpose: Thoracic aortic aneurysm and dissection (TAAD) is a life-threatening disease with often unrecognized inherited forms. We sought to identify novel pathogenic variants associated with autosomal dominant inheritance of TAAD. Methods: We analyzed exome sequencing data from 35 French TAAD families and performed next-generation sequencing capture panel of genes in 1114 unrelated TAAD patients. Functional effects of pathogenic variants identified were validated in cell, tissue, and mouse models. Results: We identified five functional variants in THSD4 of which two heterozygous variants lead to a premature termination codon. THSD4 encodes ADAMTSL6 (member of the ADAMTS/L superfamily), a microfibril-associated protein that promotes fibrillin-1 matrix assembly. The THSD4 variants studied lead to haploinsufficiency or impaired assembly of fibrillin-1 microfibrils. Thsd4+/− mice showed progressive dilation of the thoracic aorta. Histologic examination of aortic samples from a patient carrying a THSD4 variant and from Thsd4+/− mice, revealed typical medial degeneration and diffuse disruption of extracellular matrix. Conclusion: These findings highlight the role of ADAMTSL6 in aortic physiology and TAAD pathogenesis. They will improve TAAD management and help develop new targeted therapies.
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Affiliation(s)
- Sandy Elbitar
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Laboratory of Biochemistry and Molecular Therapeutics, Faculty of Pharmacy, Pôle Technologie-Santé, Saint Joseph University of Beirut, Beirut, Lebanon
| | | | - Pauline Arnaud
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Département de Génétique, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Hospitalo-Universitaire Xavier Bichat, APHP, Centre de Référence Maladies Rares, Syndrome de Marfan et pathologies apparentées, Paris, France
| | - Nadine Hanna
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Département de Génétique, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Hospitalo-Universitaire Xavier Bichat, APHP, Centre de Référence Maladies Rares, Syndrome de Marfan et pathologies apparentées, Paris, France
| | - Marie-Paule Jacob
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France
| | - Dong-Chuan Guo
- Department of Internal Medicine, McGovern Medical School, University of Texas Health Science Center, Houston, TX, USA
| | - Ko Tsutsui
- Institute for Protein Research, Osaka University, Suita, Osaka, Japan
| | - Marie-Sylvie Gross
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France
| | - Ketty Kessler
- Centre for Evolution and Cancer, Division of Molecular Pathology, Division of Cancer Therapeutics, The Institute of Cancer Research, London, UK
| | - Laurent Tosolini
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France
| | - Vincenzo Dattilo
- IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Sebastien Dupont
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France
| | - Jeremie Jonquet
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France
| | - Maud Langeois
- Hospitalo-Universitaire Xavier Bichat, APHP, Centre de Référence Maladies Rares, Syndrome de Marfan et pathologies apparentées, Paris, France
| | - Louise Benarroch
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Inserm UMRS_974, Centre de recherche en myologie, G.H. Pitié-Salpétrière, APHP, Paris, France
| | - Melodie Aubart
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Service de Neuropédiatrie, Hôpital Necker-Enfants-Malades, APHP, Paris, France
| | - Youmna Ghaleb
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Laboratory of Biochemistry and Molecular Therapeutics, Faculty of Pharmacy, Pôle Technologie-Santé, Saint Joseph University of Beirut, Beirut, Lebanon
| | - Yara Abou Khalil
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Laboratory of Biochemistry and Molecular Therapeutics, Faculty of Pharmacy, Pôle Technologie-Santé, Saint Joseph University of Beirut, Beirut, Lebanon
| | - Mathilde Varret
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France
| | - Petra El Khoury
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Laboratory of Biochemistry and Molecular Therapeutics, Faculty of Pharmacy, Pôle Technologie-Santé, Saint Joseph University of Beirut, Beirut, Lebanon
| | - Benoit Ho-Tin-Noé
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France
| | - Yves Alembik
- Department of Clinical Genetic, Hôpitaux Universitaires de Strasbourg, Strasbourg, France
| | - Sébastien Gaertner
- Department of Hypertension, Vascular Diseases and Pharmacology, University of Strasbourg, Strasbourg, France
| | - Bertrand Isidor
- Service de Génétique Médicale, Hôpital Hôtel-Dieu, Centre Hospitalier Universitaire de Nantes, Nantes, France
| | - Laurent Gouya
- Hospitalo-Universitaire Xavier Bichat, APHP, Centre de Référence Maladies Rares, Syndrome de Marfan et pathologies apparentées, Paris, France
| | - Olivier Milleron
- Hospitalo-Universitaire Xavier Bichat, APHP, Centre de Référence Maladies Rares, Syndrome de Marfan et pathologies apparentées, Paris, France
| | | | - Dianna Milewicz
- Department of Internal Medicine, McGovern Medical School, University of Texas Health Science Center, Houston, TX, USA
| | - Julie De Backer
- Center for Medical Genetics, Ghent University, Ghent, Belgium
| | - Carine Le Goff
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France
| | - Jean-Baptiste Michel
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France
| | - Guillaume Jondeau
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France.,Hospitalo-Universitaire Xavier Bichat, APHP, Centre de Référence Maladies Rares, Syndrome de Marfan et pathologies apparentées, Paris, France
| | - Lynn Y Sakai
- Shriners Hospital for Children, Molecular & Medical Genetics and Biochemistry & Molecular Biology, Oregon Health & Science University, Portland, OR, USA
| | - Catherine Boileau
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France. .,Département de Génétique, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France. .,Hospitalo-Universitaire Xavier Bichat, APHP, Centre de Référence Maladies Rares, Syndrome de Marfan et pathologies apparentées, Paris, France.
| | - Marianne Abifadel
- Laboratory for Vascular Translational Science, INSERM U1148, Université de Paris, Centre Hospitalo-Universitaire Xavier Bichat, APHP, Paris, France. .,Laboratory of Biochemistry and Molecular Therapeutics, Faculty of Pharmacy, Pôle Technologie-Santé, Saint Joseph University of Beirut, Beirut, Lebanon.
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8
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Imanishi A, Yoshizawa K, Tsutsui K, Omori Y, Ono T, Ito Uemura S, Mishima K, Kondo H, Kanbayashi T. 0757 Increasing Number of Cases Who Had Both Hypersomnolence Disorders and Developmental Disorders With Orexin Measurements. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.753] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
Recently, attention has been paid to the relationship between developmental disorders such as attention deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD), and sleep disorders. We meet many developmental disorder patients who complaint hypersomnolence. Among these patients, cases with coexistence of central hypersomnia and developmental disorders, or developmental disorder alone were increased. Therefore, we first investigated patients with the complaint of hypersomnolence, who were also suspected developmental disorders. Furthermore, we have been measuring CSF orexin in 17 cases suspected of both disorders to investigate orexin levels of these patients.
Methods
86patients who complained of EDS with suspicion of developmental disorders had been examined. In order to diagnose hypersomnolence disorders, PSG and MSLT were performed. Psychological examinations were performed for diagnosing developmental disorders.We have been measuring for CSF orexin in 17 cases suspected both hypersomnolence and developmental disorders. We examined the onset of hypersomnolence and the clinical history of these ADHD or ASD cases for more details.
Results
In 86 examined cases, developmental disorders coexisted in 30 cases. Among 30 cases, ADHD were 18, ASD were 6 and both diagnosed were 6 cases. Among them, 20 cases diagnosed as having coexistence of hypersomnia (8: narcolepsy, 12: IHS) and developmental disorders (ADHD:12, ASD:4, ADHD/ASD:4). In 17 cases with orexin measurements, 10 cases coexisted ADHD and 4 cases coexisted ASD. Two cases diagnosed as both ADHD and ASD. In 10 ADHD cases, 3 cases had low orexin levels, and 7 cases had normal orexin levels. Other 7 ASD cases had normal orexin levels.
Conclusion
ADHD has a higher rate of central hypersomnia (12/18) compared with ASD and the rate of narcolepsy was also high (5/12). While patients in ASD was diagnosed as IHS (3/6), narcolepsy cases were not observed. It became clear that the majority of patients had developmental disorder or had a tendency for developmental disorder before the onset of hypersomnolence.Although it is possible that ADHD/ASD symptoms may be exacerbated by orexin dysfunctions, ADHD/ASD may not newly occur. There were cases with low orexin levels, but it seems that narcolepsy happened to coexist with developmental disorders.
Support
a
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Affiliation(s)
- A Imanishi
- Akita University School of Medicine, Akita, JAPAN
| | - K Yoshizawa
- Akita University School of Medicine, Akita, JAPAN
| | - K Tsutsui
- Akita University School of Medicine, Akita, JAPAN
| | - Y Omori
- Tokyo Metropolitan Geriatric Hospital, Tokyo, JAPAN
| | - T Ono
- Sleep & Circadian Neurobiology Laboratory, Stanford University,, California, CA
| | - S Ito Uemura
- Akita University Graduate School of Health Sciences, Akita, JAPAN
| | - K Mishima
- Akita University School of Medicine, Akita, JAPAN
| | - H Kondo
- International Institute for Integrative Sleep Medicine (IIIS), Tsukuba University,, Tsukuba, JAPAN
| | - T Kanbayashi
- International Institute for Integrative Sleep Medicine (IIIS), Tsukuba University,, Tsukuba, JAPAN
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9
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Takeshima M, Ishikawa H, Umeta Y, Kudoh M, Umakoshi A, Yoshizawa K, Ito Y, Hosoya T, Tsutsui K, Ohta H, Mishima K. Prevalence of Asymptomatic Venous Thromboembolism in Depressive Inpatients. Neuropsychiatr Dis Treat 2020; 16:579-587. [PMID: 32161463 PMCID: PMC7049756 DOI: 10.2147/ndt.s243308] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 02/20/2020] [Indexed: 12/14/2022] Open
Abstract
PURPOSE While depression has been recognized as a risk factor for venous thromboembolism (VTE), the prevalence of VTE in depressed inpatients has never been investigated. The aim of this study was thus to examine VTE prevalence and factors associated with VTE in depressed inpatients. PATIENTS AND METHODS We conducted a retrospective cross-sectional study of consecutive depressed inpatients (n = 94) from January 1, 2018, to June 30, 2019, at the psychiatry department of Akita University Hospital. As part of our clinical routine, depressed inpatients were screened for VTE using D-dimer, and patients who screened positive underwent enhanced CT to examine VTE. A variety of data was extracted from medical records, including, amongst others, age, sex, body mass index, diagnoses of psychiatric disorders, total scores on the 17-item Hamilton Depression Rating Scale, duration of current depressive episode, daily dosages of antidepressants and antipsychotics, catatonia, and physical restraint. RESULTS VTE was detected in 8.5% of depressed inpatients. There were no significant differences between VTE-positive and VTE-negative inpatients regarding any of the considered factors. CONCLUSION Our analysis shows a VTE prevalence of 8.5% in depressed inpatients, higher than that of 2.3% reported in a previous study in hospitalized patients with psychiatric disorders including depression. This emphasizes the importance of VTE screening for depressive inpatients.
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Affiliation(s)
- Masahiro Takeshima
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Hiroyasu Ishikawa
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Yoshiaki Umeta
- Department of Psychiatry, Omagari City Hospital, Akita 014-0067, Japan
| | - Mizuki Kudoh
- Department of Neuropsychiatry, Nakadori Rehabilitation Hospital, Akita 010-0001, Japan
| | - Akise Umakoshi
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | | | - Yu Ito
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Tomoko Hosoya
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Ko Tsutsui
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Hidenobu Ohta
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita 010-8543, Japan
| | - Kazuo Mishima
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita 010-8543, Japan
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10
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Inokuchi H, Okano K, Kawamura A, Tsutsui K, Ishihara Y, Hiraoka M. Prognostic Value of Neutrophil-to-Lymphocyte Ratio before Cranial Radiotherapy in Non-Small Cell Lung Cancer Patients with Limited Brain Metastases: A Propensity-Score Matched Pair Comparison of Whole-Brain Radiotherapy and Stereotactic Irradiation Alone. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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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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12
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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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13
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Imanishi A, Kanbayashi T, Omori Y, Kazuhisa Y, Tsutsui K, Ono T, Mishima K. 0619 Patients With Developmental Disorders (adhd And Asd) Accompany With Hypersomnolence Have Normal Orexin Levels. Sleep 2019. [DOI: 10.1093/sleep/zsz067.617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Aya Imanishi
- Phychiatry, Akita university school of medicine, Akita, Japan
| | - Takashi Kanbayashi
- International Institute for Integrative Sleep Medicine, Tsukuba University, Tsukuba, Japan
| | - Yuki Omori
- Phychiatry, Akita university school of medicine, Akita, Japan
| | | | - Ko Tsutsui
- Phychiatry, Akita university school of medicine, Akita, Japan
| | - Taisuke Ono
- Sleep and Circadian Neurobiology Laboratory, Stanford University., Palo Alo, CA, USA
| | - Kazuo Mishima
- Phychiatry, Akita university school of medicine, Akita, Japan
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14
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Inokuchi H, Ishihara Y, Okano K, Kawamura A, Tsutsui K, Hiraoka M. EP-1236 Volumetric assessment of cerebral edema after fractionated SRT for multiple brain metastases. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31656-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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15
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Nakamura S, Tsutsui K. Low-frequency rTMS to ventral medial frontal cortex induces depression-like behavioral and physiological state in monkeys. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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16
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Fujiwara H, Tsutsui K, Morita R. Multi-tasking epidermal stem cells: Beyond epidermal maintenance. Dev Growth Differ 2018; 60:531-541. [PMID: 30449051 DOI: 10.1111/dgd.12577] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/15/2018] [Accepted: 10/15/2018] [Indexed: 12/17/2022]
Abstract
Over the past decade, multiple stem cell compartments have been identified within the epidermis. These stem cell pools have different transcriptional properties, proliferative modes and anatomical locations, and they maintain distinct epidermal compartments. The importance of this stem cell heterogeneity and compartmentalization has been understood as a key feature in epidermal homeostasis. However, recent studies have revealed that these heterogeneous stem cells themselves act as a niche for neighboring cells, thereby establishing spatially and temporally patterned epidermal-dermal functional units. These studies provide a new perspective for interpreting the biological significance of stem cell heterogeneity and compartmentalization beyond their role in epidermal maintenance.
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Affiliation(s)
| | - Ko Tsutsui
- RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan
| | - Ritsuko Morita
- RIKEN Center for Biosystems Dynamics Research (BDR), Kobe, Japan
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17
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Cheng CC, Tsutsui K, Taguchi T, Sanzen N, Nakagawa A, Kakiguchi K, Yonemura S, Tanegashima C, Keeley SD, Kiyonari H, Furuta Y, Tomono Y, Watt FM, Fujiwara H. Hair follicle epidermal stem cells define a niche for tactile sensation. eLife 2018; 7:38883. [PMID: 30355452 PMCID: PMC6226291 DOI: 10.7554/elife.38883] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 10/24/2018] [Indexed: 12/12/2022] Open
Abstract
The heterogeneity and compartmentalization of stem cells is a common principle in many epithelia, and is known to function in epithelial maintenance, but its other physiological roles remain elusive. Here we show transcriptional and anatomical contributions of compartmentalized epidermal stem cells in tactile sensory unit formation in the mouse hair follicle. Epidermal stem cells in the follicle upper-bulge, where mechanosensory lanceolate complexes innervate, express a unique set of extracellular matrix (ECM) and neurogenesis-related genes. These epidermal stem cells deposit an ECM protein called EGFL6 into the collar matrix, a novel ECM that tightly ensheathes lanceolate complexes. EGFL6 is required for the proper patterning, touch responses, and αv integrin-enrichment of lanceolate complexes. By maintaining a quiescent original epidermal stem cell niche, the old bulge, epidermal stem cells provide anatomically stable follicle-lanceolate complex interfaces, irrespective of the stage of follicle regeneration cycle. Thus, compartmentalized epidermal stem cells provide a niche linking the hair follicle and the nervous system throughout the hair cycle.
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Affiliation(s)
- Chun-Chun Cheng
- Laboratory for Tissue Microenvironment, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Ko Tsutsui
- Laboratory for Tissue Microenvironment, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Toru Taguchi
- Department of Neuroscience II, Research Institute of Environmental Medicine, Nagoya University, Nagoya, Japan.,Department of Physical Therapy, Niigata University of Health and Welfare, Niigata, Japan
| | - Noriko Sanzen
- Laboratory for Tissue Microenvironment, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Asako Nakagawa
- Laboratory for Tissue Microenvironment, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Kisa Kakiguchi
- Laboratory for Ultrastructural Research, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Shigenobu Yonemura
- Laboratory for Ultrastructural Research, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan.,Department of Cell Biology, Tokushima University Graduate School of Medical Science, Tokushima, Japan
| | - Chiharu Tanegashima
- Laboratory for Phyloinformatics, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Sean D Keeley
- Phyloinformatics Unit, RIKEN Center for Life Science Technologies, Kobe, Japan
| | - Hiroshi Kiyonari
- Laboratories for Animal Resource Development and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Yasuhide Furuta
- Laboratories for Animal Resource Development and Genetic Engineering, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
| | - Yasuko Tomono
- Division of Molecular and Cell Biology, Shigei Medical Research Institute, Okayama, Japan
| | - Fiona M Watt
- Centre for Stem Cells and Regenerative Medicine, King's College London, London, United Kingdom
| | - Hironobu Fujiwara
- Laboratory for Tissue Microenvironment, RIKEN Center for Biosystems Dynamics Research, Kobe, Japan
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18
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Imanishi A, Ono T, Omori Y, Sagawa Y, Takahashi Y, Tsutsui K, Watanabe M, Kanbayashi T, Shimizu T. 0626 Increasing Number Of Cases Who Had Both Hypersomnia Disorders And Developmental Disorders, Such As attention deficit hyperactivity disorder (ADHD)And autism spectrum disorder (ASD)In Japan. Sleep 2018. [DOI: 10.1093/sleep/zsy061.625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Imanishi
- Akita university school of medicine, Akita, JAPAN
| | - T Ono
- Akita university school of medicine, Akita, JAPAN
| | - Y Omori
- Akita university school of medicine, Akita, JAPAN
| | - Y Sagawa
- Akita university school of medicine, Akita, JAPAN
| | - Y Takahashi
- Akita university school of medicine, Akita, JAPAN
| | - K Tsutsui
- Akita university school of medicine, Akita, JAPAN
| | - M Watanabe
- Akita university school of medicine, Akita, JAPAN
| | - T Kanbayashi
- Akita university school of medicine, Akita, JAPAN
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, JAPAN
| | - T Shimizu
- Akita university school of medicine, Akita, JAPAN
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, JAPAN
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Omori Y, Kanbayashi T, Imanishi A, Tsutsui K, Sagawa Y, Kikuchi YS, Takeshima M, Yoshizawa K, Uemura S, Shimizu T. Orexin/hypocretin levels in the cerebrospinal fluid and characteristics of patients with myotonic dystrophy type 1 with excessive daytime sleepiness. Neuropsychiatr Dis Treat 2018; 14:451-457. [PMID: 29445282 PMCID: PMC5810517 DOI: 10.2147/ndt.s158651] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [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] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Myotonic dystrophy type 1 (DM1) is often characterized by excessive daytime sleepiness (EDS) and sleep-onset rapid eye movement periods caused by muscleblind-like protein 2. The EDS tends to persist even after treatment of sleep apnea. We measured the cerebrospinal fluid (CSF) orexin levels in DM1 patients with EDS and compared the clinical characteristics with narcolepsy type 1 and idiopathic hypersomnia (IHS) patients. PATIENTS AND METHODS We measured the CSF orexin levels in 17 DM1 patients with EDS and evaluated subjective sleepiness using the Epworth Sleepiness Scale (ESS), objective sleepiness using mean sleep latency (MSL), and sleep apnea using apnea-hypopnea index (AHI). We compared the ESS scores and MSL between decreased (≤200 pg/mL) and normal (>200 pg/mL) CSF orexin group in DM1 patients. Furthermore, we compared the CSF orexin levels, ESS scores, MSL, and AHI among patients with DM1, narcolepsy type 1 (n=46), and IHS (n=30). RESULTS Seven DM1 patients showed decreased CSF orexin levels. There were significant differences in the ESS scores and MSL between decreased and normal CSF orexin groups in DM1 patients. The ESS scores showed no significant difference among patients with DM1, narcolepsy type 1, and IHS. The MSL in DM1 and IHS patients were significantly higher than narcolepsy type 1 patients (p=0.01, p<0.001). The AHI in DM1 patients was significantly higher than narcolepsy type 1 patients (p=0.042) and was insignificantly different from IHS patients. The CSF orexin levels in DM1 patients were significantly lower than IHS patients and higher than narcolepsy type 1 patients (p<0.001, p<0.001). CONCLUSION The CSF orexin levels of DM1 patients moderately decreased compared to those of IHS patients as the control group. However, the EDS of DM1 patients may not be explained by only orexin deficiency.
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Affiliation(s)
- Yuki Omori
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Takashi Kanbayashi
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Aya Imanishi
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Ko Tsutsui
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Yohei Sagawa
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Yuka S Kikuchi
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Masahiro Takeshima
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Kazuhisa Yoshizawa
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Sachiko Uemura
- Department of Physical Therapy, Akita University Graduate School of Health Sciences, Akita, Japan
| | - Tetsuo Shimizu
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
- International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
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20
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Omori Y, Kanbayashi T, Sagawa Y, Imanishi A, Tsutsui K, Takahashi Y, Takeshima M, Takaki M, Nishino S, Shimizu T. Low dose of aripiprazole advanced sleep rhythm and reduced nocturnal sleep time in the patients with delayed sleep phase syndrome: an open-labeled clinical observation. Neuropsychiatr Dis Treat 2018; 14:1281-1286. [PMID: 29849459 PMCID: PMC5965391 DOI: 10.2147/ndt.s158865] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVES Delayed sleep phase syndrome (DSPS) is a chronic dysfunction of circadian rhythm of the subject that impairs functioning in social, occupational, or other spheres. High rate of depression is found among DSPS patients. Aripiprazole (APZ), a second-generation antipsychotic, is effective in treatment of depression as well as schizophrenia. Recently, few case reports show the effectiveness of APZ in treating DSPS and non-24-hour sleep-wake rhythm disorder. Therefore, we tried to treat DSPS with depression using APZ. METHODS Twelve subjects (including four women) aged 19-64 years were included. The subjects were prescribed initially 0.5-3 mg of APZ once a day with subsequent dose adjustments. RESULTS Sleep onset, midpoint of sleep, and sleep offset were significantly advanced by 1.1, 1.8, and 2.5 hours, respectively. Unexpectedly, sleep duration became significantly shorter by 1.3 hours after treatment. Their depressive moods showed an unremarkable change. CONCLUSION Low dose of APZ advanced the sleep rhythm and reduced nocturnal sleep time in the subjects with DSPS. Since it is not easy for physicians to treat prolonged sleep duration often associated with DSPS, this medication would become a new therapeutic option for these patients.
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Affiliation(s)
- Yuki Omori
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Takashi Kanbayashi
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan.,International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
| | - Yohei Sagawa
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Aya Imanishi
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Ko Tsutsui
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Yuya Takahashi
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Masahiro Takeshima
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan
| | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University Graduate School of Medicine, Okayama, Japan
| | - Seiji Nishino
- Department of Psychiatry and Behavioral Sciences, Sleep and Circadian Neurobiology Laboratory & Center for Narcolepsy, Stanford University School of Medicine, Stanford, CA, USA
| | - Tetsuo Shimizu
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita, Japan.,International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, Japan
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21
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Tobari Y, Kansaku N, Tsutsui K. Noradrenergic modulation of gonadotrophin-inhibitory hormone gene expression in the brain of Japanese quail. J Neuroendocrinol 2017; 29. [PMID: 28683170 DOI: 10.1111/jne.12503] [Citation(s) in RCA: 7] [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: 12/17/2016] [Revised: 07/02/2017] [Accepted: 07/03/2017] [Indexed: 02/01/2023]
Abstract
Gonadotrophin-inhibitory hormone (GnIH) is a hypothalamic neuropeptide that inhibits gonadotrophin synthesis and release in birds and mammals. In Japanese quail, GnIH neurones express the noradrenergic receptor and receive noradrenergic innervation. Treatment with noradrenaline (NA) stimulates GnIH release from diencephalic tissue blocks in vitro. However, the effects of NA on hypothalamic GnIH gene expression have not been determined. We investigated noradrenergic regulation of GnIH gene expression in the brain of male quail using the selective noradrenergic neurotoxin N-(2-chloroethyl)-N-ethyl-2-bromobenzylamine hydrochloride (DSP-4). We first showed that DSP-4 reduced the number of noradrenergic (dopamine-β-hydroxylase immunoreactive) cells in the locus coeruleus (LoC) and specifically lowered the NA concentration in the hypothalamus of male quail. Other monoamines, such as dopamine and serotonin, were not affected by drug treatment. DSP-4 did not decrease the numbers of noradrenergic cells of the lateral tegmental cell group, nor the plasma NA concentration. Decreased hypothalamic NA levels after DSP-4 treatment did not change GnIH gene expression in the brains of quail during their interaction with conspecifics. On the other hand, GnIH gene expression increased in the brains of quail socially isolated for 1 hour after DSP-4 treatment. These results suggest that some noradrenergic neurones have inhibitory effects on GnIH gene expression of the hypothalamus in solitary quail.
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Affiliation(s)
- Y Tobari
- Laboratory of Integrative Brain Sciences, Department of Biology, Waseda University, and Center for Medical Life Science of Waseda University, Shinjuku-ku, Tokyo, Japan
- Laboratory of Animal Genetics and Breeding, Department of Animal Science and Biotechnology, School of Veterinary Medicine, Azabu University, Chuo-ku, Sagamihara, Kanagawa, Japan
| | - N Kansaku
- Laboratory of Animal Genetics and Breeding, Department of Animal Science and Biotechnology, School of Veterinary Medicine, Azabu University, Chuo-ku, Sagamihara, Kanagawa, Japan
| | - K Tsutsui
- Laboratory of Integrative Brain Sciences, Department of Biology, Waseda University, and Center for Medical Life Science of Waseda University, Shinjuku-ku, Tokyo, Japan
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22
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Suda H, Kanbayashi T, Ito SU, Sagawa Y, Imanishi A, Tsutsui K, Takahashi J, Kikuchi Y, Takahashi Y, Shimizu T. Residual effects of eszopiclone on daytime alertness, psychomotor, physical performance and subjective evaluations. Sleep Biol Rhythms 2017. [DOI: 10.1007/s41105-017-0112-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Monfredi OJ, Tsutsui K, Sirenko S, Maltseva LA, Byshkov R, Kim MS, Ziman BD, Tarasov K, Wang M, Maltsev AV, Brennan J, Stern MD, Efimov IR, Maltsev VA, Lakatta EG. P1592Pacemaker clocks become uncoupled to cause asystole: heart's endgame. Europace 2017. [DOI: 10.1093/ehjci/eux158.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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24
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Takehana K, Inokuchi H, Tsutsui K, Hiraoka M. Comparison of Radiation Dose of Induction Chemoradiation Therapy Followed by Surgery for Potentially Resectable Stage III Non–Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.01.154] [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: 11/16/2022]
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25
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Cheng CC, Tsutsui K, Taguchi T, Ban-Sanzen N, Kakiguchi K, Yonemura S, Kuraku S, Watt F, Fujiwara H. Hair follicle stem cells define a niche for tactile sensation via secretion of a specialized ECM. J Dermatol Sci 2017. [DOI: 10.1016/j.jdermsci.2017.02.177] [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: 11/24/2022]
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26
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Omori Y, Kanbayashi T, Sagawa Y, Imanishi A, Tsutsui K, Takahashi J, Takeshima M, Takaki M, Nishino S, Shimizu T. 0703 LOW DOSE OF ARIPIPRAZOLE REDUCED NOCTURNAL SLEEP TIME IN THE PATIENTS WITH DELAYED SLEEP PHASE DISORDER AND DEPRESSIVE SYMPTOMS. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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27
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Sato S, Kanbayashi T, Imanishi A, Tsutsui K, Shimizu T. 0109 A NONINVASIVE ECG RECORDING IN INTACT MICE DURING SLEEP AND WAKE-SLEEP TRANSITION. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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28
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Takahahsi J, Takashi K, Ito Uemura S, Sagawa Y, Tsutsui K, Takahashi Y, Omori Y, Imanishi A, Takeshima M, Satake M, Shimizu T. 0358 RESIDUAL EFFECTS OF ESZOPICLONE AND PLACEBO IN HEALTHY ELDERLY SUBJECTS, A RANDOMIZED DOUBLE BLIND STUDY. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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29
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Miyazawa R, Wakabayashi H, Tsutsui K, Iwai H, Kakushima K. Photovoltaic Characteristics of Ultra-Thin Single Crystalline Silicon Solar Cells. Frontiers in Electronics 2017. [DOI: 10.1142/9789813220829_0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- R. Miyazawa
- Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology 4259 S2-20, Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - H. Wakabayashi
- School of Engineering, Tokyo Institute of Technology 4259 G2-22, Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - K. Tsutsui
- Institute of Innovative Research, Tokyo Institute of Technology 4259 J2-69, Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - H. Iwai
- Institute of Innovative Research, Tokyo Institute of Technology 4259 J2-68, Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - K. Kakushima
- School of Engineering, Tokyo Institute of Technology 4259 S2-20, Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
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30
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Tsutsui K, Kanbayashi T, Takaki M, Omori Y, Imai Y, Nishino S, Tanaka K, Shimizu T. N-Methyl-D-aspartate receptor antibody could be a cause of catatonic symptoms in psychiatric patients: case reports and methods for detection. Neuropsychiatr Dis Treat 2017; 13:339-345. [PMID: 28223808 PMCID: PMC5308574 DOI: 10.2147/ndt.s125800] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [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] [Indexed: 12/20/2022] Open
Abstract
The symptoms of catatonia have been reported to be similar to the initial symptoms of anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis. Subsequently, this autoimmune limbic encephalitis has been noticed by many psychiatrists. For a differential diagnosis of catatonic state, it is important to detect anti-NMDAR encephalitis. This encephalitis is expected to be in remission by early detection and treatment. We should be more cautious about catatonic symptoms of schizophrenia. When a patient is suspected of having encephalitis, we should screen for anti-NMDAR antibodies in cerebrospinal fluid samples using a cell-based assay. We describe the methods of NMDAR antibody detection and the etiology of this encephalitis with case reports. Two representative cases with catatonia and non-catatonia (brief psychotic disorder) were reported. Schizophrenia is a general, heterogeneous, and complicated disorder, and its pathophysiology is unknown. There is an established evidence of NMDAR hypofunction, which is the functional disconnection of the central component; this is one of the most recognized models for schizophrenia. Furthermore, it is said that autoimmune mechanisms have been involved, at least in subgroups of schizophrenia patients. Further study of anti-NMDAR antibody and its related encephalitis would give essential clues for the research of schizophrenia, catatonia, and atypical psychosis.
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Affiliation(s)
- Ko Tsutsui
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita
| | - Takashi Kanbayashi
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita; International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba
| | - Manabu Takaki
- Department of Neuropsychiatry, Okayama University, Okayama
| | - Yuki Omori
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita
| | - Yumiko Imai
- Biological Informatics and Experimental Therapeutics, Akita University Graduate School of Medicine, Akita, Japan
| | - Seiji Nishino
- Sleep and Circadian Neurobiology Laboratory, Stanford University School of Medicine, Palo Alto, California, USA
| | - Keiko Tanaka
- Brain Research Institute, Niigata University, Niigata, Japan
| | - Tetsuo Shimizu
- Department of Neuropsychiatry, Akita University Graduate School of Medicine, Akita; International Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba
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31
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Rezazadeh FM, Shirazi MRJ, Zamiri MJ, Salehi MS, Nama-var MR, Akhlaghi A, Tamadon A, Tsutsui K. Seasonal Changes in Hypothalamic Gonadotropin Inhibitory Hormone Expression in the Paraventricular Nucleus of Chukar Partridge (Alectoris chukar). Anim Reprod 2017. [DOI: 10.21451/1984-3143-ar893] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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32
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Motokawa M, Kaku M, Tohma Y, Kawata T, Fujita T, Kohno S, Tsutsui K, Ohtani J, Tenjo K, Shigekawa M, Kamada H, Tanne K. Effects of Cyclic Tensile Forces on the Expression of Vascular Endothelial Growth Factor (VEGF) and Macrophage-colony-stimulating Factor (M-CSF) in Murine Osteoblastic MC3T3-E1 Cells. J Dent Res 2016; 84:422-7. [PMID: 15840777 DOI: 10.1177/154405910508400505] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
It has been reported that vascular endothelial growth factor (VEGF), expressed by osteoblasts, can induce osteoclast recruitment and thus affects bone remodeling. The purpose of this study was to investigate the effects of cyclic tensile forces on the expression of VEGF and macrophage-colony-stimulating factor (M-CSF) in osteoblastic MC3T3-E1 cells. VEGF and M-CSF gene expression and protein concentration were determined by real-time PCR and enzyme-linked immunoassay. The expression of VEGF and M-CSF mRNA in the experimental group was higher than in the control group. The increase in the concentration of VEGF and M-CSF protein in the experimental group was time-dependent. Moreover, gadolinium (an S-A channel inhibitor), but not nifedipine (L-Type Ca2+ channel blocker), treatment reduced the concentration of VEGF and M-CSF mRNA and protein in the experimental groups. These findings suggest that cyclic tensile forces increase the expression of VEGF and M-CSF in osteoblastic MC3T3-E1 cells via a stretch-activated channel (S-A channel).
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Affiliation(s)
- M Motokawa
- Department of Orthodontics and Craniofacial Developmental Biology, Hiroshima University Graduate School of Biomedical Sciences, 1-2-3 Kasumi, Minami-ku, Hiroshima 734-8553, Japan.
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Di Yorio MP, Pérez Sirkin DI, Delgadin TH, Shimizu A, Tsutsui K, Somoza GM, Vissio PG. Gonadotrophin-Inhibitory Hormone in the Cichlid Fish Cichlasoma dimerus: Structure, Brain Distribution and Differential Effects on the Secretion of Gonadotrophins and Growth Hormone. J Neuroendocrinol 2016; 28. [PMID: 26919074 DOI: 10.1111/jne.12377] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [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: 09/23/2015] [Revised: 02/10/2016] [Accepted: 02/19/2016] [Indexed: 12/21/2022]
Abstract
The role of gonadotrophin-inhibitory hormone (GnIH) in the inhibition of the reproductive axis has been well-established in birds and mammals. However, its role in other vertebrates, such as the teleost fish, remains controversial. In this context, the present study aimed to evaluate whether GnIH modulates the release of gonadotrophins and growth hormone (GH) in the cichlid fish Cichlasoma dimerus. First, we partially sequenced the precursor polypeptide for GnIH and identified three putative GnIH peptides. Next, we analysed the expression of this precursor polypeptide via a polymerase chain reaction in the reproductive axis of both sexes. We found a high expression of the polypeptide in the hypothalamus and gonads of males. Immunocytochemistry allowed the observation of GnIH-immunoreactive somata in the nucleus posterioris periventricularis and the nucleus olfacto-retinalis, with no differences between the sexes. GnIH-immunoreactive fibres were present in all brain regions, with a high density in the nucleus lateralis tuberis and at both sides of the third ventricle. Finally, we performed in vitro studies on intact pituitary cultures to evaluate the effect of two doses (10(-6) m and 10(-8) m) of synthetic C. dimerus (cd-) LPQRFa-1 and LPQRFa-2 on the release of gonadotrophins and GH. We observed that cd-LPQRFa-1 decreased β-luteinising hormone (LH) and β-follicle-stimulating hormone (FSH) and also increased GH release to the culture medium. The release of β-FSH was increased only when it was stimulated with the higher cd-LPQRFa-2 dose. The results of the present study indicate that cd-LPQRFa-1, the cichlid fish GnIH, inhibits β-LH and β-FSH release and stimulates GH release in intact pituitary cultures of C. dimerus. The results also show that cd-LPQRF-2 could act as an β-FSH-releasing factor in this fish species.
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Affiliation(s)
- M P Di Yorio
- Laboratorio de Neuroendocrinología del Crecimiento y la Reproducción, DBBE, FCEN-UBA/IBBEA-CONICET-UBA, Ciudad Universitaria, (C1428EHA), Buenos Aires, Argentina
| | - D I Pérez Sirkin
- Laboratorio de Neuroendocrinología del Crecimiento y la Reproducción, DBBE, FCEN-UBA/IBBEA-CONICET-UBA, Ciudad Universitaria, (C1428EHA), Buenos Aires, Argentina
| | - T H Delgadin
- Laboratorio de Neuroendocrinología del Crecimiento y la Reproducción, DBBE, FCEN-UBA/IBBEA-CONICET-UBA, Ciudad Universitaria, (C1428EHA), Buenos Aires, Argentina
| | - A Shimizu
- National Research Institute of Fisheries Science, Fisheries Research Agency, Yokohama, Kanagawa, Japan
| | - K Tsutsui
- Department of Biology and Center for Medical Life Science, Waseda University, Tokyo, Japan
| | - G M Somoza
- Instituto de Investigaciones Biotecnológicas-Instituto Tecnológico de Chascomús (IIB-INTECH), CONICET-UNSAM, Chascomús, Buenos Aires, Argentina
| | - P G Vissio
- Laboratorio de Neuroendocrinología del Crecimiento y la Reproducción, DBBE, FCEN-UBA/IBBEA-CONICET-UBA, Ciudad Universitaria, (C1428EHA), Buenos Aires, Argentina
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34
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Wingfield JC, Perfito N, Calisi R, Bentley G, Ubuka T, Mukai M, O'Brien S, Tsutsui K. Putting the brakes on reproduction: Implications for conservation, global climate change and biomedicine. Gen Comp Endocrinol 2016; 227:16-26. [PMID: 26474923 DOI: 10.1016/j.ygcen.2015.10.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [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: 05/28/2015] [Accepted: 10/08/2015] [Indexed: 02/07/2023]
Abstract
Seasonal breeding is widespread in vertebrates and involves sequential development of the gonads, onset of breeding activities (e.g. cycling in females) and then termination resulting in regression of the reproductive system. Whereas males generally show complete spermatogenesis prior to and after onset of breeding, females of many vertebrate species show only partial ovarian development and may delay onset of cycling (e.g. estrous), yolk deposition or germinal vesicle breakdown until conditions conducive for ovulation and onset of breeding are favorable. Regulation of this "brake" on the onset of breeding remains relatively unknown, but could have profound implications for conservation efforts and for "mismatches" of breeding in relation to global climate change. Using avian models it is proposed that a brain peptide, gonadotropin-inhibitory hormone (GnIH), may be the brake to prevent onset of breeding in females. Evidence to date suggests that although GnIH may be involved in the regulation of gonadal development and regression, it plays more regulatory roles in the process of final ovarian development leading to ovulation, transitions from sexual to parental behavior and suppression of reproductive function by environmental stress. Accumulating experimental evidence strongly suggests that GnIH inhibits actions of gonadotropin-releasing hormones on behavior (central effects), gonadotropin secretion (central and hypophysiotropic effects), and has direct actions in the gonad to inhibit steroidogenesis. Thus, actual onset of breeding activities leading to ovulation may involve environmental cues releasing an inhibition (brake) on the hypothalamo-pituitary-gonad axis.
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Affiliation(s)
- John C Wingfield
- Department of Neurobiology, Physiology and Behavior, University of California, One Shields Avenue, Davis, CA 95616, USA.
| | - Nicole Perfito
- Department of Integrative Biology, University of California, Berkeley, CA 94720, USA
| | - Rebecca Calisi
- Department of Biology, Barnard College, Columbia University, New York, NY 10027, USA
| | - George Bentley
- Department of Integrative Biology, University of California, Berkeley, CA 94720, USA
| | - T Ubuka
- Department of Biology, Waseda University, Shinjuku-ku, Tokyo 162-8480, Japan
| | - M Mukai
- Department of Food Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14853, USA
| | - Sara O'Brien
- Department of Biology, Radford University, Radford, VA 24142, USA
| | - K Tsutsui
- Department of Biology, Waseda University, Shinjuku-ku, Tokyo 162-8480, Japan
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35
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Kanbayashi T, Tsutsui K, Tanaka K, Omori Y, Takaki M, Omokawa M, Mori A, Kusanagi H, Nishino S, Shimizu T. [Anti-NMDA encephalitis in psychiatry; malignant catatonia, atypical psychosis and ECT]. Rinsho Shinkeigaku 2015; 54:1103-6. [PMID: 25672720 DOI: 10.5692/clinicalneurol.54.1103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The symptoms of malignant (lethal) catatonia has been reported similar to initial symptoms of anti-NMDAR encephalitis. Subsequently, this autoimmune limbic encephalitis has been noticed in many psychiatrists. We have experienced several cases with malignant catatonia having anti-NMDAR antibody without clinical signs of encephalitis. Thereafter, we have also found anti-NMDAR antibody positive patients of young females with acute florid psychiatric symptoms without clinical signs of encephalitis. The features of these patients mirror-those of "Atypical psychosis" proposed by Mitsuda in Japan, a notion derived from "Cycloid psychosis" conceptualized by German psychiatrist, Leonhard. Both cycloid and atypical psychosis have coinciding features of acute onset, emotional disturbances, psychomotor disturbances, alternations of consciousness, high prevalence in women and oriented premorbid personality. Both malignant catatonia and atypical psychosis have been known to be effectively treated with modified electro convulsion therapy (m-ECT). Our 5 cases with anti-NMDAR antibody, m-ECT treatments were effective. Infectious encephalitis is contra indication of m-ECT, but this autoimmune encephalitis would be careful indication. Schizophrenia is a common, heterogeneous, and complex disorder with unknown etiology. There is established evidence of NMDAR hypofunction as a central component of the functional disconnectivity; this is one of the most accepted models for schizophrenia. Moreover, autoimmune mechanisms have been proposed to be involved, at least in subgroups of schizophrenia patients. Further research of anti-NMDAR antibody and encephalitis would be important clues for the investigation of schizophrenia, catatonia and atypical psychosis.
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Affiliation(s)
- Takashi Kanbayashi
- Psychiatry, Akita University Hospital; International Institute for Integrative Sleep Medicine, Tsukuba University
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Osugi T, Ubuka T, Tsutsui K. An evolutionary scenario for gonadotrophin-inhibitory hormone in chordates. J Neuroendocrinol 2015; 27:556-66. [PMID: 25494813 DOI: 10.1111/jne.12246] [Citation(s) in RCA: 11] [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: 09/29/2014] [Revised: 12/03/2014] [Accepted: 12/08/2014] [Indexed: 12/12/2022]
Abstract
In 2000, we discovered a novel hypothalamic neuropeptide that actively inhibits gonadotrophin release in quail and termed it gonadotrophin-inhibitory hormone (GnIH). GnIH peptides have subsequently been identified in most representative species of gnathostomes. They all share a C-terminal LPXRFamide (X = L or Q) motif. GnIH can inhibit gonadotrophin synthesis and release by decreasing the activity of GnRH neuroes, as well as by directly inhibiting pituitary gonadotrophin secretion in birds and mammals. To investigate the evolutionary origin of GnIH and its ancestral function, we identified a GnIH precursor gene encoding GnIHs from the brain of sea lamprey, the most ancient lineage of vertebrates. Lamprey GnIHs possess a C-terminal PQRFamide motif. In vivo administration of one of lamprey GnIHs stimulated the expression of lamprey GnRH in the hypothalamus and gonadotophin β mRNA in the pituitary. Thus, GnIH may have emerged in agnathans as a stimulatory neuropeptide that subsequently diverged to an inhibitory neuropeptide during the course of evolution from basal vertebrates to later-evolved vertebrates, such as birds and mammals. From a structural point of view, pain modulatory neuropeptides, such as neuropeptide FF (NPFF) and neuropeptide AF, share a C-terminal PQRFamide motif. Because agnathans possess both GnIH and NPFF genes, the origin of GnIH and NPFF genes may date back before the emergence of agnathans. More recently, we identified a novel gene encoding RFamide peptides in the amphioxus. Molecular phylogenetic analysis and synteny analysis indicated that this gene is closely related to the genes of GnIH and NPFF of vertebrates. The results suggest that the identified protochordate gene is similar to the common ancestor of GnIH and NPFF genes, indicating that the origin of GnIH and NPFF may date back to the time of the emergence of early chordates. The GnIH and NPFF genes may have diverged by whole-genome duplication during the course of vertebrate evolution.
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Affiliation(s)
- T Osugi
- Department of Biology and Center for Medical Life Science, Waseda University, Shinjuku, Tokyo, Japan
| | - T Ubuka
- Department of Biology and Center for Medical Life Science, Waseda University, Shinjuku, Tokyo, Japan
| | - K Tsutsui
- Department of Biology and Center for Medical Life Science, Waseda University, Shinjuku, Tokyo, Japan
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Jafarzadeh Shirazi MR, Zamiri MJ, Salehi MS, Moradi S, Tamadon A, Namavar MR, Akhlaghi A, Tsutsui K, Caraty A. Differential expression of RFamide-related peptide, a mammalian gonadotrophin-inhibitory hormone orthologue, and kisspeptin in the hypothalamus of Abadeh ecotype does during breeding and anoestrous seasons. J Neuroendocrinol 2014; 26:186-94. [PMID: 24528197 DOI: 10.1111/jne.12137] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [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: 06/12/2013] [Revised: 02/07/2014] [Accepted: 02/10/2014] [Indexed: 12/19/2022]
Abstract
Gonadotrophin-inhibitory hormone (GnIH) is a novel hypothalamic neuropeptide that was discovered in birds as an inhibitory factor for gonadotrophin release. RFamide-related peptide (RFRP) is a mammalian GnIH orthologue that inhibits gonadotrophin synthesis and release in mammals through actions on gonadotrophin-releasing hormone (GnRH) neurones and gonadotrophs, mediated via the GnIH receptor (GnIH-R), GPR147. On the other hand, hypothalamic kisspeptin provokes the release of GnRH from the hypothalamus. The present study aimed to compare the expression of RFRP in the dorsomedial hypothalamus and paraventricular nucleus (DMH/PVN) and that of kisspeptin in the arcuate nucleus (ARC) of the female goat hypothalamus during anoestrous and breeding seasons. Mature female Abadeh does were used during anoestrus, as well as the follicular and luteal phases of the cycle. The number of RFRP-immunoreactive (-IR) neurones in the follicular phase was lower than in the luteal and anoestrous stages. Irrespective of the ovarian stage, the number of RFRP-IR neurones in the rostral and middle regions of the DMH/PVN was higher than in the caudal region. By contrast, the number of kisspeptin-IR neurones in the follicular stage was greater than in the luteal stage and during the anoestrous stage. Irrespective of the stage of the ovarian cycle, the number of kisspeptin-IR neurones in the caudal region of the ARC was greater than in the middle and rostral regions. In conclusion, RFRP-IR cells were more abundant in the rostral region of the DMH/PVN nuclei of the hypothalamus, with a greater number being found during the luteal and anoestrous stages compared to the follicular stage. On the other hand, kisspeptin-IR neurones were more abundant in the caudal part of the ARC, with a greater number recorded in the follicular stage compared to the luteal and anoestrous stages.
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Tsutsui K, Kanbayashi T, Tanaka K, Boku S, Ito W, Tokunaga J, Mori A, Hishikawa Y, Shimizu T, Nishino S. Anti-NMDA-receptor antibody detected in encephalitis, schizophrenia, and narcolepsy with psychotic features. BMC Psychiatry 2012; 12:37. [PMID: 22569157 PMCID: PMC3436772 DOI: 10.1186/1471-244x-12-37] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/27/2011] [Accepted: 03/30/2012] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Causative role of encephalitis in major psychotic features, dyskinesias (particularly orofacial), seizures, and autonomic and respiratory changes has been recently emphasized. These symptoms often occur in young females with ovarian teratomas and are frequently associated with serum and CSF autoantibodies to the NMDA receptor (NMDAR). METHODS The study included a total of 61 patients from age 15 to 61 and was carried out between January 1, 2005, and Dec 31, 2010. The patients were divided into the following three clinical groups for comparison. Group A; Patients with typical clinical characteristics of anti-NMDAR encephalitis. Group B; Patients with narcolepsy with severe psychosis. Group C; Patients with schizophrenia or schizo-affective disorders. RESULTS Ten out of 61 cases were anti-NMDAR antibody positive in typical encephalitis cases (group A: 3 of 5 cases) and cases in a broader range of psychiatric disorders including narcolepsy (group B: 3 of 5 cases) and schizophrenia (group C: 4 of 51 cases). CONCLUSION In addition to 3 typical cases, we found 7 cases with anti-NMDAR antibody associated with various psychotic and sleep symptoms, which lack any noticeable clinical signs of encephalitis (seizures and autonomic symptoms) throughout the course of the disease episodes; this result suggest that further discussion on the nosology and pathophysiology of autoimmune-mediated atypical psychosis and sleep disorders is required.
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Affiliation(s)
- Ko Tsutsui
- Akita University, Department of Neuropsychiatry, Akita, Japan
| | | | - Keiko Tanaka
- Kanazawa Medical University, Department of Neurology, Ishikawa, Japan
| | - Shuken Boku
- Hokkaido University, Department of Neuropsychiatry, Sapporo, Japan
| | - Wakako Ito
- Akita University, Department of Neuropsychiatry, Akita, Japan,University of South Carolina, Department of Exercise Science, Columbia, SC, USA
| | - Jun Tokunaga
- Akita University, Department of Neuropsychiatry, Akita, Japan
| | - Akane Mori
- Akita University, Department of Neuropsychiatry, Akita, Japan
| | - Yasuo Hishikawa
- Akita University, Department of Neuropsychiatry, Akita, Japan,Akita Kaiseikai Hospital, Department of Psychiatry, Akita, Japan
| | - Tetsuo Shimizu
- Akita University, Department of Neuropsychiatry, Akita, Japan
| | - Seiji Nishino
- Stanford University, Sleep and Circadian Neurobiology Laboratory, Palo Alto, CA, USA
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Seki S, Tamura H, Wada Y, Tsutsui K. Depth profiling in secondary ion mass spectrometry for ultra-thin layer with nanometer order thickness by mesa-structure fabrication. SURF INTERFACE ANAL 2012. [DOI: 10.1002/sia.4875] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- S. Seki
- Faculty of Engineering; Takushoku University; 815-1 Tatemachi Hachioji Tokyo 193-0985 Japan
| | - H. Tamura
- Faculty of Engineering; Takushoku University; 815-1 Tatemachi Hachioji Tokyo 193-0985 Japan
| | - Y. Wada
- Graduate School of Interdisciplinary New Science; Toyo University
| | - K. Tsutsui
- Graduate School of Interdisciplinary New Science; Toyo University
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Sengle G, Tsutsui K, Keene DR, Tufa SF, Carlson EJ, Charbonneau NL, Ono RN, Sasaki T, Wirtz MK, Samples JR, Fessler LI, Fessler JH, Sekiguchi K, Hayflick SJ, Sakai LY. Microenvironmental regulation by fibrillin-1. PLoS Genet 2012; 8:e1002425. [PMID: 22242013 PMCID: PMC3252277 DOI: 10.1371/journal.pgen.1002425] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Accepted: 11/01/2011] [Indexed: 11/19/2022] Open
Abstract
Fibrillin-1 is a ubiquitous extracellular matrix molecule that sequesters latent growth factor complexes. A role for fibrillin-1 in specifying tissue microenvironments has not been elucidated, even though the concept that fibrillin-1 provides extracellular control of growth factor signaling is currently appreciated. Mutations in FBN1 are mainly responsible for the Marfan syndrome (MFS), recognized by its pleiotropic clinical features including tall stature and arachnodactyly, aortic dilatation and dissection, and ectopia lentis. Each of the many different mutations in FBN1 known to cause MFS must lead to similar clinical features through common mechanisms, proceeding principally through the activation of TGFβ signaling. Here we show that a novel FBN1 mutation in a family with Weill-Marchesani syndrome (WMS) causes thick skin, short stature, and brachydactyly when replicated in mice. WMS mice confirm that this mutation does not cause MFS. The mutation deletes three domains in fibrillin-1, abolishing a binding site utilized by ADAMTSLIKE-2, -3, -6, and papilin. Our results place these ADAMTSLIKE proteins in a molecular pathway involving fibrillin-1 and ADAMTS-10. Investigations of microfibril ultrastructure in WMS humans and mice demonstrate that modulation of the fibrillin microfibril scaffold can influence local tissue microenvironments and link fibrillin-1 function to skin homeostasis and the regulation of dermal collagen production. Hence, pathogenetic mechanisms caused by dysregulated WMS microenvironments diverge from Marfan pathogenetic mechanisms, which lead to broad activation of TGFβ signaling in multiple tissues. We conclude that local tissue-specific microenvironments, affected in WMS, are maintained by a fibrillin-1 microfibril scaffold, modulated by ADAMTSLIKE proteins in concert with ADAMTS enzymes. The microenvironment is specified by cell-surface molecules, growth factors, and the extracellular matrix. Here we report genetic evidence that implicates fibrillin-1, a ubiquitous extracellular matrix molecule that sequesters latent growth factor complexes, as a key determinant in the local control of musculoskeletal and skin microenvironments. A novel mutation in fibrillin-1 demonstrates that modulation of the fibrillin microfibril scaffold can influence tissue microenvironments and result in the clinical features of Weill-Marchesani syndrome (WMS), including thick skin, short stature, and brachydactyly. Dysregulated WMS microenvironments diverge from Marfan pathogenetic mechanisms, which lead to broad activation of TGFβ signaling in multiple tissues.
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Affiliation(s)
- Gerhard Sengle
- Department of Biochemistry and Molecular Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Shriners Hospital for Children, Portland, Oregon, United States of America
| | - Ko Tsutsui
- Department of Biochemistry and Molecular Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Shriners Hospital for Children, Portland, Oregon, United States of America
- Laboratory of Extracellular Matrix Biochemistry, Institute for Protein Research, Osaka University, Osaka, Japan
| | - Douglas R. Keene
- Shriners Hospital for Children, Portland, Oregon, United States of America
| | - Sara F. Tufa
- Shriners Hospital for Children, Portland, Oregon, United States of America
| | - Eric J. Carlson
- Department of Biochemistry and Molecular Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Shriners Hospital for Children, Portland, Oregon, United States of America
| | - Noe L. Charbonneau
- Shriners Hospital for Children, Portland, Oregon, United States of America
| | - Robert N. Ono
- Shriners Hospital for Children, Portland, Oregon, United States of America
| | - Takako Sasaki
- Department of Biochemistry and Molecular Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Shriners Hospital for Children, Portland, Oregon, United States of America
| | - Mary K. Wirtz
- Casey Eye Institute, Department of Ophthalmology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - John R. Samples
- Casey Eye Institute, Department of Ophthalmology, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Liselotte I. Fessler
- Department of Molecular, Cell, and Developmental Biology and Molecular Biology Institute, University of California Los Angeles, Los Angeles, California, United States of America
| | - John H. Fessler
- Department of Molecular, Cell, and Developmental Biology and Molecular Biology Institute, University of California Los Angeles, Los Angeles, California, United States of America
| | - Kiyotoshi Sekiguchi
- Laboratory of Extracellular Matrix Biochemistry, Institute for Protein Research, Osaka University, Osaka, Japan
| | - Susan J. Hayflick
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, Oregon, United States of America
| | - Lynn Y. Sakai
- Department of Biochemistry and Molecular Biology, Oregon Health and Science University, Portland, Oregon, United States of America
- Shriners Hospital for Children, Portland, Oregon, United States of America
- * E-mail:
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Ohta Y, Nishi S, Haga T, Tsubouchi T, Hasegawa R, Konishi M, Nagano Y, Tsuruwaka Y, Shimane Y, Mori K, Usui K, Suda E, Tsutsui K, Nishimoto A, Fujiwara Y, Maruyama T, Hatada Y. Screening and Phylogenetic Analysis of Deep-Sea Bacteria Capable of Metabolizing Lignin-Derived Aromatic Compounds. ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ojms.2012.24021] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Tobari Y, Iijima N, Tsunekawa K, Osugi T, Haraguchi S, Ubuka T, Ukena K, Okanoya K, Tsutsui K, Ozawa H. Identification, localisation and functional implication of 26RFa orthologue peptide in the brain of zebra finch (Taeniopygia guttata). J Neuroendocrinol 2011; 23:791-803. [PMID: 21696471 DOI: 10.1111/j.1365-2826.2011.02179.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Several neuropeptides with the C-terminal Arg-Phe-NH(2) (RFa) sequence have been identified in the hypothalamus of a variety of vertebrates. The present study was conducted to isolate novel RFa peptides from the zebra finch brain. Peptides were isolated by immunoaffinity purification using an antibody that recognises avian RFa peptides. The isolated peptide consisted of 25 amino acids with RFa at its C-terminus. The sequence was SGTLGNLAEEINGYNRRKGGFTFRFa. Alignment of the peptide with vertebrate 26RFa has revealed that the identified peptide is the zebra finch 26RFa. We also cloned the precursor cDNA encoding this peptide. Synteny analysis of the gene showed a high conservation of this gene among vertebrates. In addition, we cloned the cDNA encoding a putative 26RFa receptor, G protein-coupled receptor 103 (GPR103) in the zebra finch brain. GPR103 cDNA encoded a 432 amino acid protein that has seven transmembrane domains. In situ hybridisation analysis in the brain showed that the expression of 26RFa mRNA is confined to the anterior-medial hypothalamic area, ventromedial nucleus of the hypothalamus and the lateral hypothalamic area, the brain regions that are involved in the regulation of feeding behaviour, whereas GPR103 mRNA is distributed throughout the brain in addition to the hypothalamic nuclei. When administered centrally in free-feeding male zebra finches, 26RFa increased food intake 24 h after injection without body mass change. Diencephalic GPR103 mRNA expression was up-regulated by fasting for 10 h. Our data suggest that the hypothalamic 26RFa-its receptor system plays an important role in the central control of food intake and energy homeostasis in the zebra finch.
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Affiliation(s)
- Y Tobari
- Department of Anatomy and Neurobiology, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
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Saito M, Kurokawa M, Oda M, Oshima M, Tsutsui K, Kosaka K, Nakao K, Ogawa M, Manabe RI, Suda N, Ganjargal G, Hada Y, Noguchi T, Teranaka T, Sekiguchi K, Yoneda T, Tsuji T. ADAMTSL6β protein rescues fibrillin-1 microfibril disorder in a Marfan syndrome mouse model through the promotion of fibrillin-1 assembly. J Biol Chem 2011; 286:38602-38613. [PMID: 21880733 DOI: 10.1074/jbc.m111.243451] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Marfan syndrome (MFS) is a systemic disorder of the connective tissues caused by insufficient fibrillin-1 microfibril formation and can cause cardiac complications, emphysema, ocular lens dislocation, and severe periodontal disease. ADAMTSL6β (A disintegrin-like metalloprotease domain with thrombospondin type I motifs-like 6β) is a microfibril-associated extracellular matrix protein expressed in various connective tissues that has been implicated in fibrillin-1 microfibril assembly. We here report that ADAMTSL6β plays an essential role in the development and regeneration of connective tissues. ADAMTSL6β expression rescues microfibril disorder after periodontal ligament injury in an MFS mouse model through the promotion of fibrillin-1 microfibril assembly. In addition, improved fibrillin-1 assembly in MFS mice following the administration of ADAMTSL6β attenuates the overactivation of TGF-β signals associated with the increased release of active TGF-β from disrupted fibrillin-1 microfibrils within periodontal ligaments. Our current data thus demonstrate the essential contribution of ADAMTSL6β to fibrillin-1 microfibril formation. These findings also suggest a new therapeutic strategy for the treatment of MFS through ADAMTSL6β-mediated fibrillin-1 microfibril assembly.
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Affiliation(s)
- Masahiro Saito
- Department of Biological Science and Technology, Faculty of Industrial Science, Tokyo University of Science, Noda, Chiba 278-8510, Japan; Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan.
| | - Misaki Kurokawa
- Department of Biological Science and Technology, Faculty of Industrial Science, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Masahito Oda
- Department of Biological Science and Technology, Faculty of Industrial Science, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Masamitsu Oshima
- Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Ko Tsutsui
- Institute for Protein Research, Osaka University, Suita Osaka 565-0871, Japan
| | - Kazutaka Kosaka
- Division of Restorative Dentistry, Department of Oral Medicine, Kanagawa Dental College, Yokosuka Kanagawa 238-8580, Japan
| | - Kazuhisa Nakao
- Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan
| | - Miho Ogawa
- Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan; Organ Technologies Inc., Tokyo, Japan
| | - Ri-Ichiroh Manabe
- RIKEN Genomic Sciences Center, RIKEN Yokohama Institute, Yokohama 230-0045, Japan
| | - Naoto Suda
- Maxillofacial Orthognathics, Graduate School, Tokyo Medical and Dental University, Tokyo 113-0034, Japan
| | - Ganburged Ganjargal
- Maxillofacial Orthognathics, Graduate School, Tokyo Medical and Dental University, Tokyo 113-0034, Japan
| | - Yasunobu Hada
- Department of Biological Science and Technology, Faculty of Industrial Science, Tokyo University of Science, Noda, Chiba 278-8510, Japan; Oral Implantology and Regenerative Dental Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo 113-0034, Japan
| | - Toshihide Noguchi
- Department of Periodontology, School of Dentistry, Aichi-Gakuin University, Nisshin 470-0195, Japan
| | - Toshio Teranaka
- Division of Restorative Dentistry, Department of Oral Medicine, Kanagawa Dental College, Yokosuka Kanagawa 238-8580, Japan
| | - Kiyotoshi Sekiguchi
- Institute for Protein Research, Osaka University, Suita Osaka 565-0871, Japan
| | - Toshiyuki Yoneda
- Department of Molecular and Cellular Biochemistry, Graduate School of Dentistry, Osaka University, Suita Osaka 565-0871, Japan
| | - Takashi Tsuji
- Department of Biological Science and Technology, Faculty of Industrial Science, Tokyo University of Science, Noda, Chiba 278-8510, Japan; Research Institute for Science and Technology, Tokyo University of Science, Noda, Chiba 278-8510, Japan; Organ Technologies Inc., Tokyo, Japan
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Shahjahan M, Ikegami T, Osugi T, Ukena K, Doi H, Hattori A, Tsutsui K, Ando H. Synchronised expressions of LPXRFamide peptide and its receptor genes: seasonal, diurnal and circadian changes during spawning period in grass puffer. J Neuroendocrinol 2011; 23:39-51. [PMID: 21083774 DOI: 10.1111/j.1365-2826.2010.02081.x] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Among the RFamide peptide family, the LPXRFamide peptide (LPXRFa) group regulates the release of various pituitary hormones and, recently, LPXRFa genes were found to be regulated by photoperiod via melatonin. As a first step towards investigating the role of LPXRFa on reproductive function in grass puffer (Takifugu niphobles), which spawns in semilunar cycles, genes encoding LPXRFa and its receptor (LPXRFa-R) were cloned, and seasonal, diurnal and circadian changes in their absolute amounts of mRNAs in the brain and pituitary were examined by quantitative real-time polymerase chain reaction. The grass puffer LPXRFa precursor contains two putative RFamide peptides and one possible RYamide peptide. LPXRFa and LPXRFa-R genes were extensively expressed in the diencephalon and pituitary. The expression levels of both genes were significantly elevated during the spawning periods in both sexes in the brain and pituitary, although they were low in the spawning fish just after releasing eggs and sperm. The treatment of primary pituitary cultures with goldfish LPXRFa increased the amounts of follicle-stimulating hormone β- and luteinising hormone β-subunit mRNAs. In the diencephalon, LPXRFa and LPXRFa-R genes showed synchronised diurnal and circadian variations with one peak at zeitgeber time 3 and circadian time 15, respectively. The correlated expression patterns of LPXRFa and LPXRFa-R genes in the diencephalon and pituitary and the possible stimulatory effects of LPXRFa on gonadotrophin subunit gene expression suggest the functional significance of the LPXRFa and LPXRFa-R system in the regulation of lunar-synchronised spawning of grass puffer.
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Affiliation(s)
- M Shahjahan
- Laboratory of Advanced Animal and Marine Bioresources, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, Fukuoka, Japan
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Tsutsui K, Bentley GE, Kriegsfeld LJ, Osugi T, Seong JY, Vaudry H. Discovery and evolutionary history of gonadotrophin-inhibitory hormone and kisspeptin: new key neuropeptides controlling reproduction. J Neuroendocrinol 2010; 22:716-27. [PMID: 20456604 PMCID: PMC2909878 DOI: 10.1111/j.1365-2826.2010.02018.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [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] [Indexed: 11/30/2022]
Abstract
Gonadotrophin-releasing hormone (GnRH) is the primary hypothalamic factor responsible for the control of gonadotrophin secretion in vertebrates. However, within the last decade, two other hypothalamic neuropeptides have been found to play key roles in the control of reproductive functions: gonadotrophin-inhibitory hormone (GnIH) and kisspeptin. In 2000, we discovered GnIH in the quail hypothalamus. GnIH inhibits gonadotrophin synthesis and release in birds through actions on GnRH neurones and gonadotrophs, mediated via GPR147. Subsequently, GnIH orthologues were identified in other vertebrate species from fish to humans. As in birds, mammalian and fish GnIH orthologues inhibit gonadotrophin release, indicating a conserved role for this neuropeptide in the control of the hypothalamic-pituitary-gonadal axis across species. Subsequent to the discovery of GnIH, kisspeptin, encoded by the KiSS-1 gene, was discovered in mammals. By contrast to GnIH, kisspeptin has a direct stimulatory effect on GnRH neurones via GPR54. GPR54 is also expressed in pituitary cells, but whether gonadotrophs are targets for kisspeptin remains unresolved. The KiSS-1 gene is also highly conserved and has been identified in mammals, amphibians and fish. We have recently found a second isoform of KiSS-1, designated KiSS-2, in several vertebrates, but not birds, rodents or primates. In this review, we highlight the discovery, mechanisms of action, and functional significance of these two chief regulators of the reproductive axis.
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Affiliation(s)
- K Tsutsui
- Department of Biology, Waseda University, Tokyo, Japan.
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Abstract
To maximise reproductive success, organisms restrict breeding to optimal times of the day or year, when internal physiology and external environmental conditions are suitable for the survival of both parent and offspring. To appropriately coordinate reproductive activity, internal and external standing is communicated to the hypothalamic-pituitary-gonadal axis via a coordinated balance of stimulatory and inhibitory neurochemical systems. The cumulative balance of these mediators ultimately drives the pattern of gonadotrophin-releasing hormone secretion, a neurohormone that stimulates pituitary gonadotrophin secretion. Until 2000, a complementary inhibitor of pituitary gonadotrophin secretion had not been identified. At this time, a novel, avian hypothalamic peptide capable of inhibiting gonadotrophin secretion in cultured quail pituitary cells was uncovered and named gonadotrophin-inhibitory hormone (GnIH). Subsequently, the presence and functional role for the mammalian orthologue of GnIH, RFamide-related peptide, (RFRP-3), was examined, confirming a conserved role for this peptide across several rodent species. To date, a similar distribution and functional role for RFRP-3 have been observed across all mammals investigated, including humans. This overview summarises the role that RFRP-3 plays in mammals and considers the implications and opportunities for further study with respect to reproductive physiology and the neural control of sexual behaviour and motivation.
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Affiliation(s)
- L J Kriegsfeld
- Department of Psychology, Helen Wills Neuroscience Institute, University of California, Berkeley, CA 94720-1650, USA.
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Seki S, Tamura H, Wada Y, Tsutsui K, Ootomo S. Depth profiling of micrometer-order area by mesa-structure fabrication. SURF INTERFACE ANAL 2010. [DOI: 10.1002/sia.3546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Tsutsui K, Manabe RI, Yamada T, Nakano I, Oguri Y, Keene DR, Sengle G, Sakai LY, Sekiguchi K. ADAMTSL-6 is a novel extracellular matrix protein that binds to fibrillin-1 and promotes fibrillin-1 fibril formation. J Biol Chem 2010; 285:4870-82. [PMID: 19940141 PMCID: PMC2836092 DOI: 10.1074/jbc.m109.076919] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.7] [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: 10/18/2009] [Indexed: 11/06/2022] Open
Abstract
ADAMTS (A disintegrin and metalloproteinase with thrombospondin motifs)-like (ADAMTSL) proteins, a subgroup of the ADAMTS superfamily, share several domains with ADAMTS proteinases, including thrombospondin type I repeats, a cysteine-rich domain, and an ADAMTS spacer, but lack a catalytic domain. We identified two new members of ADAMTSL proteins, ADAMTSL-6alpha and -6beta, that differ in their N-terminal amino acid sequences but have common C-terminal regions. When transfected into MG63 osteosarcoma cells, both isoforms were secreted and deposited into pericellular matrices, although ADAMTSL-6alpha, in contrast to -6beta, was barely detectable in the conditioned medium. Immunolabeling at the light and electron microscopic levels showed their close association with fibrillin-1-rich microfibrils in elastic connective tissues. Surface plasmon resonance analyses demonstrated that ADAMTSL-6beta binds to the N-terminal half of fibrillin-1 with a dissociation constant of approximately 80 nm. When MG63 cells were transfected or exogenously supplemented with ADAMTSL-6, fibrillin-1 matrix assembly was promoted in the early but not the late stage of the assembly process. Furthermore, ADAMTSL-6 transgenic mice exhibited excessive fibrillin-1 fibril formation in tissues where ADAMTSL-6 was overexpressed. All together, these results indicated that ADAMTSL-6 is a novel microfibril-associated protein that binds directly to fibrillin-1 and promotes fibrillin-1 matrix assembly.
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Affiliation(s)
- Ko Tsutsui
- From the Sekiguchi Biomatrix Signaling Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Aichi Medical University, Nagakute, Aichi 480-1195, Japan
- the Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan, and
| | - Ri-ichiroh Manabe
- From the Sekiguchi Biomatrix Signaling Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Aichi Medical University, Nagakute, Aichi 480-1195, Japan
- the Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan, and
| | - Tomiko Yamada
- From the Sekiguchi Biomatrix Signaling Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Aichi Medical University, Nagakute, Aichi 480-1195, Japan
| | - Itsuko Nakano
- From the Sekiguchi Biomatrix Signaling Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Aichi Medical University, Nagakute, Aichi 480-1195, Japan
- the Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan, and
| | - Yasuko Oguri
- From the Sekiguchi Biomatrix Signaling Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Aichi Medical University, Nagakute, Aichi 480-1195, Japan
| | | | - Gerhard Sengle
- the Department of Biochemistry and Molecular Biology, Oregon Health & Science University, Portland, Oregon 97239
| | - Lynn Y. Sakai
- the Shriners Hospital for Children and
- the Department of Biochemistry and Molecular Biology, Oregon Health & Science University, Portland, Oregon 97239
| | - Kiyotoshi Sekiguchi
- From the Sekiguchi Biomatrix Signaling Project, Exploratory Research for Advanced Technology, Japan Science and Technology Agency, Aichi Medical University, Nagakute, Aichi 480-1195, Japan
- the Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan, and
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Shimono C, Manabe RI, Yamada T, Fukuda S, Kawai J, Furutani Y, Tsutsui K, Ikenaka K, Hayashizaki Y, Sekiguchi K. Identification and characterization of nCLP2, a novel C1q family protein expressed in the central nervous system. J Biochem 2009; 147:565-79. [DOI: 10.1093/jb/mvp203] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
Gonadotrophin-inhibitory hormone (GnIH) was discovered 8 years ago in birds. Its identification raised the possibility that gonadotrophin-releasing hormone (GnRH) is not the sole hypothalamic neuropeptide that directly influences pituitary gonadotrophin release. Initial studies on GnIH focused on the avian anterior pituitary as comprising the only physiological target of GnIH. There are now several lines of evidence indicating that GnIH directly inhibits pituitary gonadotrophin synthesis and release in birds and mammals. Histological studies on projections from hypothalamic GnIH neurones subsequently implied direct actions of GnIH within the brain and in the periphery. In addition to actions on the pars distalis via the median eminence, GnIH axons and terminals are present in multiple brain areas in birds, and the GnIH receptor is expressed on GnRH-I and -II neurones. Furthermore, we have demonstrated the presence of GnIH and its receptor in avian and mammalian gonads. Thus, GnIH can act directly at multiple levels: within the brain, on the pituitary and in the gonads. In sum, our data indicate that GnIH and its related peptides are important modulators of reproductive function at the level of the GnRH neurone, the gonadotroph and the gonads. Here, we provide an overview of the known levels of GnIH action in birds and mammals. In addition, environmental and physiological factors that are involved in GnIH regulation are reviewed.
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Affiliation(s)
- G E Bentley
- Department of Integrative Biology, University of California at Berkeley, Berkeley, CA 94720, USA.
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