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  1. Article ; Online: Role of noradrenergic transmission within the ventral bed nucleus of the stria terminalis in nicotine withdrawal-induced aversive behavior.

    Arakaki, Saya / Minami, Masabumi

    Neuropsychopharmacology reports

    2022  Volume 42, Issue 2, Page(s) 233–237

    Abstract: Aim: Cessation of smoking induces nicotine withdrawal symptoms such as anxiety, depression, and dysphoria, which could lead to smoking relapse. In the present study, we examined the role of noradrenergic transmission within the ventral bed nucleus of ... ...

    Abstract Aim: Cessation of smoking induces nicotine withdrawal symptoms such as anxiety, depression, and dysphoria, which could lead to smoking relapse. In the present study, we examined the role of noradrenergic transmission within the ventral bed nucleus of the stria terminalis (vBNST) on nicotine withdrawal-induced aversive behavior.
    Methods: Nicotine dependence in rats was established by subcutaneous implantation with a nicotine-filled osmotic minipump on day 1. Nicotine withdrawal was precipitated by administration of the nicotine receptor antagonist, mecamylamine (3.0 mg/kg, s.c.), on day 15. Nicotine withdrawal-induced intra-vBNST noradrenaline release and aversive behavior were examined by in vivo microdialysis and a conditioned place aversion (CPA) test, respectively.
    Results: Intra-vBNST noradrenaline release was significantly increased during nicotine withdrawal. Nicotine withdrawal induced aversive behavior, which was attenuated by intra-vBNST injection of the β-adrenoceptor antagonist, timolol.
    Conclusions: These results suggest that enhanced noradrenergic transmission via β-adrenoceptors in the vBNST plays a crucial role in nicotine withdrawal-induced aversive behavior.
    MeSH term(s) Animals ; Nicotine/adverse effects ; Norepinephrine ; Rats ; Rats, Sprague-Dawley ; Septal Nuclei ; Substance Withdrawal Syndrome
    Chemical Substances Nicotine (6M3C89ZY6R) ; Norepinephrine (X4W3ENH1CV)
    Language English
    Publishing date 2022-04-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 2574-173X
    ISSN (online) 2574-173X
    DOI 10.1002/npr2.12252
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Chronic pain enhances excitability of corticotropin-releasing factor-expressing neurons in the oval part of the bed nucleus of the stria terminalis.

    Uchida, Ryoko / Mukai, Yasutaka / Amano, Taiju / Sakimura, Kenji / Itoi, Keiichi / Yamanaka, Akihiro / Minami, Masabumi

    Molecular brain

    2024  Volume 17, Issue 1, Page(s) 22

    Abstract: We previously reported that enhanced corticotropin-releasing factor (CRF) signaling in the bed nucleus of the stria terminalis (BNST) caused the aversive responses during acute pain and suppressed the brain reward system during chronic pain. However, it ... ...

    Abstract We previously reported that enhanced corticotropin-releasing factor (CRF) signaling in the bed nucleus of the stria terminalis (BNST) caused the aversive responses during acute pain and suppressed the brain reward system during chronic pain. However, it remains to be examined whether chronic pain alters the excitability of CRF neurons in the BNST. In this study we investigated the chronic pain-induced changes in excitability of CRF-expressing neurons in the oval part of the BNST (ovBNST
    MeSH term(s) Animals ; Septal Nuclei/metabolism ; Corticotropin-Releasing Hormone/metabolism ; Neurons/metabolism ; Chronic Pain/physiopathology ; Chronic Pain/metabolism ; Male ; Action Potentials/physiology ; Mice, Inbred C57BL ; Mice
    Chemical Substances Corticotropin-Releasing Hormone (9015-71-8)
    Language English
    Publishing date 2024-05-03
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2436057-0
    ISSN 1756-6606 ; 1756-6606
    ISSN (online) 1756-6606
    ISSN 1756-6606
    DOI 10.1186/s13041-024-01094-6
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: The impact of pitolisant, an H

    Hirano, Kyosuke / Morishita, Yoshikazu / Minami, Masabumi / Nomura, Hiroshi

    Scientific reports

    2022  Volume 12, Issue 1, Page(s) 7015

    Abstract: Histamine is a neurotransmitter that modulates neuronal activity and regulates various brain functions. Histamine ... ...

    Abstract Histamine is a neurotransmitter that modulates neuronal activity and regulates various brain functions. Histamine H
    MeSH term(s) Animals ; Histamine ; Histamine Agonists/pharmacology ; Humans ; Mice ; Neurons ; Perirhinal Cortex ; Piperidines
    Chemical Substances Histamine Agonists ; Piperidines ; pitolisant (4BC83L4PIY) ; Histamine (820484N8I3)
    Language English
    Publishing date 2022-05-12
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-022-11032-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Resolution of depression: antidepressant actions of resolvins.

    Deyama, Satoshi / Kaneda, Katsuyuki / Minami, Masabumi

    Neuroscience research

    2022  

    Abstract: Major depressive disorder, one of the most widespread mental illnesses, brings about enormous individual and socioeconomic consequences. Conventional monoaminergic antidepressants require weeks to months to produce a therapeutic response, and ... ...

    Abstract Major depressive disorder, one of the most widespread mental illnesses, brings about enormous individual and socioeconomic consequences. Conventional monoaminergic antidepressants require weeks to months to produce a therapeutic response, and approximately one-third of the patients fail to respond to these drugs and are considered treatment-resistant. Although recent studies have demonstrated that ketamine, an N-methyl-D-aspartate receptor antagonist, produces rapid antidepressant effects in treatment-resistant patients, it also has undesirable side effects. Hence, rapid-acting antidepressants that have fewer adverse effects than ketamine are urgently required. D-series (RvD1-RvD6) and E-series (RvE1-RvE4) resolvins are endogenous lipid mediators derived from docosahexaenoic and eicosapentaenoic acids, respectively. These mediators reportedly play a pivotal role in the resolution of acute inflammation. In this review, we reveal that intracranial infusions of RvD1, RvD2, RvE1, RvE2, and RvE3 produce antidepressant-like effects in various rodent models of depression. Moreover, the behavioral effects of RvD1, RvD2, and RvE1 are mediated by the activation of the mechanistic target of rapamycin complex 1, which is essential for the antidepressant-like actions of ketamine. Finally, we briefly provide our perspective on the possible role of endogenous resolvins in stress resilience.
    Language English
    Publishing date 2022-10-19
    Publishing country Ireland
    Document type Journal Article ; Review
    ZDB-ID 605842-5
    ISSN 1872-8111 ; 0168-0102 ; 0921-8696
    ISSN (online) 1872-8111
    ISSN 0168-0102 ; 0921-8696
    DOI 10.1016/j.neures.2022.10.006
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Diverse intracellular signaling pathways mediate the effects of neurotensin on the excitability of type II neurons in the rat dorsolateral bed nucleus of the stria terminalis.

    Kaneko, Tomoyuki / Hara, Ryuto / Amano, Taiju / Minami, Masabumi

    Journal of pharmacological sciences

    2021  Volume 147, Issue 1, Page(s) 86–94

    Abstract: We examined the effects of neurotensin (NTS) on the excitability of type II neurons in the rat dorsolateral bed nucleus of the stria terminalis (dlBNST) using whole-cell patch-clamp electrophysiology. Bath-application of NTS depolarized type II dlBNST ... ...

    Abstract We examined the effects of neurotensin (NTS) on the excitability of type II neurons in the rat dorsolateral bed nucleus of the stria terminalis (dlBNST) using whole-cell patch-clamp electrophysiology. Bath-application of NTS depolarized type II dlBNST neurons. Analyses of the steady-state I-V relationships implied that the depolarizing effect of NTS is due to potassium conductance blocking. The depolarizing effect of NTS was abolished in the presence of a PLC inhibitor, but not affected by a protein kinase C inhibitor. In the presence of a CaMKII inhibitor, NTS showed depolarizing effects via the increase in non-selective cation conductance in addition to the decrease in potassium conductance. Unexpectedly, in the presence of a PKA inhibitor, NTS hyperpolarized type II dlBNST neurons. These results reveal that diverse signaling pathways mediate the effects of NTS on the excitability of type II dlBNST neurons. The elevation of intracellular Ca
    MeSH term(s) Adenylyl Cyclases/metabolism ; Animals ; Calcium/metabolism ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/antagonists & inhibitors ; Calcium-Calmodulin-Dependent Protein Kinase Type 2/metabolism ; Cells, Cultured ; Male ; Neurons/drug effects ; Neurons/physiology ; Neurotensin/pharmacology ; Patch-Clamp Techniques/methods ; Rats, Sprague-Dawley ; Septal Nuclei/cytology ; Signal Transduction/physiology ; Synaptic Transmission/drug effects ; Rats
    Chemical Substances Neurotensin (39379-15-2) ; Calcium-Calmodulin-Dependent Protein Kinase Type 2 (EC 2.7.11.17) ; Adenylyl Cyclases (EC 4.6.1.1) ; Calcium (SY7Q814VUP)
    Language English
    Publishing date 2021-06-05
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 2104264-0
    ISSN 1347-8648 ; 1347-8613
    ISSN (online) 1347-8648
    ISSN 1347-8613
    DOI 10.1016/j.jphs.2021.05.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Resolvins as potential candidates for the treatment of major depressive disorder.

    Deyama, Satoshi / Minami, Masabumi / Kaneda, Katsuyuki

    Journal of pharmacological sciences

    2021  Volume 147, Issue 1, Page(s) 33–39

    Abstract: In contrast with the delayed onset of therapeutic responses and relatively low efficacy of currently available monoamine-based antidepressants, a single subanesthetic dose of ketamine, an N-methyl-D-aspartate receptor antagonist, produces rapid and ... ...

    Abstract In contrast with the delayed onset of therapeutic responses and relatively low efficacy of currently available monoamine-based antidepressants, a single subanesthetic dose of ketamine, an N-methyl-D-aspartate receptor antagonist, produces rapid and sustained antidepressant actions even in patients with treatment-resistant depression. However, since the clinical use of ketamine as an antidepressant is limited owing to its adverse effects, such as psychotomimetic/dissociative effects and abuse potential, there is an unmet need for novel rapid-acting antidepressants with fewer side effects. Preclinical studies have revealed that the antidepressant actions of ketamine are mediated via the release of brain-derived neurotrophic factor and vascular endothelial growth factor, with the subsequent activation of mechanistic target of rapamycin complex 1 (mTORC1) in the medial prefrontal cortex. Recently, we demonstrated that resolvins (RvD1, RvD2, RvE1, RvE2 and RvE3), endogenous lipid mediators generated from n-3 polyunsaturated fatty acids (docosahexaenoic and eicosapentaenoic acids), exert antidepressant effects in a rodent model of depression, and that the antidepressant effects of RvD1, RvD2, and RvE1 necessitate mTORC1 activation. In this review, we first provide an overview of the mechanisms underlying the antidepressant effects of ketamine and other rapid-acting agents. We then discuss the possibility of using resolvins as novel therapeutic candidates for depression.
    MeSH term(s) Animals ; Antidepressive Agents ; Depressive Disorder, Major/drug therapy ; Disease Models, Animal ; Docosahexaenoic Acids/pharmacology ; Docosahexaenoic Acids/therapeutic use ; Eicosapentaenoic Acid/analogs & derivatives ; Eicosapentaenoic Acid/pharmacology ; Eicosapentaenoic Acid/therapeutic use ; Mechanistic Target of Rapamycin Complex 1/metabolism ; Mice ; Prefrontal Cortex/metabolism
    Chemical Substances Antidepressive Agents ; Docosahexaenoic Acids (25167-62-8) ; Eicosapentaenoic Acid (AAN7QOV9EA) ; Mechanistic Target of Rapamycin Complex 1 (EC 2.7.11.1)
    Language English
    Publishing date 2021-05-24
    Publishing country Japan
    Document type Journal Article ; Review
    ZDB-ID 2104264-0
    ISSN 1347-8648 ; 1347-8613
    ISSN (online) 1347-8648
    ISSN 1347-8613
    DOI 10.1016/j.jphs.2021.05.002
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Evaluation of behavioural selection processes in conflict scenarios using a newly developed mouse behavioural paradigm.

    Miyagami, Yurika / Honshuku, Yuki / Nomura, Hiroshi / Minami, Masabumi / Hitora-Imamura, Natsuko

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 20006

    Abstract: Selecting an appropriate behaviour is critical for survival in conflict scenarios, wherein animals face both appetitive and aversive stimuli. Behavioural selection consists of multiple processes: (1) animals remain quiet in a safe place to avoid aversive ...

    Abstract Selecting an appropriate behaviour is critical for survival in conflict scenarios, wherein animals face both appetitive and aversive stimuli. Behavioural selection consists of multiple processes: (1) animals remain quiet in a safe place to avoid aversive stimuli (suspension), (2) once they decide to take risks to approach appetitive stimuli, they assess the risks (risk assessment), and (3) they act to reach the reward. However, most studies have not addressed these distinct behavioural processes separately. Here, we developed a new experimental paradigm called the three-compartment conflict task to quantitatively evaluate conflict processes. Our apparatus consisted of start, flat, and grid compartments. Mice needed to explore the grid compartment, where they might receive foot shocks while trying to obtain sucrose. Applying foot shocks increased sucrose acquisition latency in subsequent trials, reflecting elevated conflict levels throughout trials. The time spent in the start compartment and the number of retreats were determined to measure the conflict levels in suspension and risk assessment, respectively. Foot shocks increased these parameters, whereas diazepam decreased them. Our new paradigm is valuable for quantitatively evaluating distinct behavioural processes and contributes to developing effective treatments for psychiatric disorders associated with maladaptive behaviours in conflict scenarios.
    MeSH term(s) Humans ; Mice ; Animals ; Reward ; Sucrose
    Chemical Substances Sucrose (57-50-1)
    Language English
    Publishing date 2023-11-16
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-46743-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Intranasal Administration of Resolvin E1 Produces Antidepressant-Like Effects via BDNF/VEGF-mTORC1 Signaling in the Medial Prefrontal Cortex.

    Deyama, Satoshi / Aoki, Shun / Sugie, Rinako / Fukuda, Hayato / Shuto, Satoshi / Minami, Masabumi / Kaneda, Katsuyuki

    Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics

    2023  Volume 20, Issue 2, Page(s) 484–501

    Abstract: Intracerebroventricular infusion of resolvin E1 (RvE1), a bioactive metabolite derived from eicosapentaenoic acid, exerts antidepressant-like effects in a mouse model of lipopolysaccharide (LPS)-induced depression; these effects are blocked by systemic ... ...

    Abstract Intracerebroventricular infusion of resolvin E1 (RvE1), a bioactive metabolite derived from eicosapentaenoic acid, exerts antidepressant-like effects in a mouse model of lipopolysaccharide (LPS)-induced depression; these effects are blocked by systemic injection of rapamycin, a mechanistic target of rapamycin complex 1 (mTORC1) inhibitor. Additionally, local infusion of RvE1 into the medial prefrontal cortex (mPFC) or dorsal hippocampal dentate gyrus (DG) produces antidepressant-like effects. To evaluate the potential of RvE1 for clinical use, the present study examined whether treatment with RvE1 via intranasal (i.n.) route, a non-invasive route for effective drug delivery to the brain, produces antidepressant-like effects in LPS-challenged mice using tail suspension and forced swim tests. Intranasal administration of RvE1 significantly attenuated LPS-induced immobility, and these antidepressant-like effects were completely blocked by an AMPA receptor antagonist or L-type voltage-dependent Ca
    MeSH term(s) Mice ; Animals ; Vascular Endothelial Growth Factor A/metabolism ; Vascular Endothelial Growth Factor A/pharmacology ; Eicosapentaenoic Acid/metabolism ; Eicosapentaenoic Acid/pharmacology ; Mechanistic Target of Rapamycin Complex 1/metabolism ; Mechanistic Target of Rapamycin Complex 1/pharmacology ; Brain-Derived Neurotrophic Factor/metabolism ; Administration, Intranasal ; Lipopolysaccharides/toxicity ; Antidepressive Agents/pharmacology ; Antidepressive Agents/metabolism ; Prefrontal Cortex/metabolism ; Depression/drug therapy
    Chemical Substances Vascular Endothelial Growth Factor A ; 5S,12R,18R-trihydroxy-6Z,8E,10E,14Z,16E-eicosapentaenoic acid (GND3JH08JA) ; Eicosapentaenoic Acid (AAN7QOV9EA) ; Mechanistic Target of Rapamycin Complex 1 (EC 2.7.11.1) ; Brain-Derived Neurotrophic Factor ; Lipopolysaccharides ; Antidepressive Agents
    Language English
    Publishing date 2023-01-09
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2316693-9
    ISSN 1878-7479 ; 1933-7213
    ISSN (online) 1878-7479
    ISSN 1933-7213
    DOI 10.1007/s13311-022-01337-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: [Neuronal mechanisms underlying pain-induced negative emotions].

    Minami, Masabumi

    Brain and nerve = Shinkei kenkyu no shinpo

    2012  Volume 64, Issue 11, Page(s) 1241–1247

    Abstract: Pain consists of sensory-discriminative and negative emotional components. Although the neuronal basis of the sensory component of pain has been studied extensively, the neuronal mechanisms underlying the negative emotional component are not well ... ...

    Abstract Pain consists of sensory-discriminative and negative emotional components. Although the neuronal basis of the sensory component of pain has been studied extensively, the neuronal mechanisms underlying the negative emotional component are not well understood. Recently, behavioral studies using a conditioned place paradigm have successfully elucidated the neuronal circuits and mechanisms underlying the negative emotional component of pain. Excitotoxic lesions of the anterior cingulate cortex (ACC), central amygdaloid nucleus, basolateral amygdaloid nucleus (BLA), or bed nucleus of the stria terminalis (BNST) suppress intraplantar formalin-induced aversive responses. Glutamatergic transmission within the ACC and BLA via N-methyl-D-asparate (NMDA) receptors has been shown to play a critical role in these aversive responses. In the BNST, especially its ventral part, noradrenergic transmission via β-adrenergic receptors has been shown to be important for pain-induced aversion. Because persistent pain is frequently associated with psychological and emotional dysfunctions, studies on the neuronal circuits and molecular mechanisms involved in the negative emotional component of pain may have considerable clinical importance in the treatment of chronic pain. Here, I have reviewed behavioral studies investigating the neuronal mechanisms underlying the negative emotional component of pain and have introduced our data showing the pivotal role of amygdala and BNST in pain-induced aversion.
    MeSH term(s) Amygdala/physiology ; Animals ; Conditioning (Psychology)/physiology ; Emotions/physiology ; Humans ; Neurons/physiology ; Pain/physiopathology ; Septal Nuclei/physiology
    Language Japanese
    Publishing date 2012-11
    Publishing country Japan
    Document type English Abstract ; Journal Article ; Review
    ZDB-ID 390389-8
    ISSN 1344-8129 ; 1881-6096 ; 0006-8969
    ISSN (online) 1344-8129
    ISSN 1881-6096 ; 0006-8969
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Exposure to hot and cold environments activates neurons projecting from the paraventricular thalamic nucleus to brain regions related to approach and avoidance behaviors

    Kanai, Minami / Kamiizawa, Ryota / Hitora-Imamura, Natsuko / Minami, Masabumi

    Journal of thermal biology. 2022 Jan., v. 103

    2022  

    Abstract: Although cool- and warm-seeking behaviors for behavioral thermoregulation are considered to be appetitive/approach and aversive/avoidance behaviors, the neuronal circuits mediating such behaviors remain to be elucidated. A growing body of evidence ... ...

    Abstract Although cool- and warm-seeking behaviors for behavioral thermoregulation are considered to be appetitive/approach and aversive/avoidance behaviors, the neuronal circuits mediating such behaviors remain to be elucidated. A growing body of evidence suggests that the paraventricular thalamic nucleus (PVT) is a key brain region in a neuronal circuit that mediates appetitive/approach and aversive/avoidance behaviors. In this study, to elucidate the neuronal circuits mediating behavioral thermoregulatory responses, we examined whether neuronal pathways from the PVT to the nucleus accumbens (NAc), bed nucleus of the stria terminalis (BNST), and central nucleus of the amygdala (CeA), which are brain regions implicated in mediating appetitive/approach and aversive/avoidance behaviors, are activated during exposure to hot (38°C) and cold (8°C) environments using c-Fos immunostaining and retrograde tracing. Our results showed activation of neuronal pathways from the PVT to the NAc, BNST, and CeA during exposure to hot and cold environments, suggesting that activation of these pathways may be involved in avoidance behaviors from hot and cold environments for behavioral thermoregulation.
    Keywords amygdala ; cold ; neurons ; thermoregulation
    Language English
    Dates of publication 2022-01
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 1498364-3
    ISSN 1879-0992 ; 0306-4565
    ISSN (online) 1879-0992
    ISSN 0306-4565
    DOI 10.1016/j.jtherbio.2021.103157
    Database NAL-Catalogue (AGRICOLA)

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