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  1. Article ; Online: Liver involvement in sphingosine 1-phosphate dynamism revealed by adenoviral hepatic overexpression of apolipoprotein M.

    Kurano, Makoto / Tsukamoto, Kazuhisa / Ohkawa, Ryunosuke / Hara, Masumi / Iino, Junko / Kageyama, Yuko / Ikeda, Hitoshi / Yatomi, Yutaka

    Atherosclerosis

    2013  Volume 229, Issue 1, Page(s) 102–109

    Abstract: ... ascribed to S1P. Since S1P riding on HDL was recently shown to bind to apolipoprotein M (apoM), which is ...

    Abstract Objectives: Sphingosine 1-phosphate (S1P) is a vasoprotective lipid mediator that is mainly carried on HDL in the circulation and several anti-atherosclerotic properties of HDL is considered to be ascribed to S1P. Since S1P riding on HDL was recently shown to bind to apolipoprotein M (apoM), which is derived from liver, we analyzed the possible involvement of liver in S1P metabolism.
    Methods and results: Using adenoviruses, we overexpressed apoM in HepG2 cells and mice livers and found that both the medium/plasma and cell/liver S1P contents increased. Among lipoprotein subclasses, S1P contents increased mainly in HDL fractions. On the other hand, hepatectomy resulted in the reduction of plasma S1P levels in mice. The incubation of S1P in the conditional medium of apoM-overexpressing HepG2 cells interfered with S1P degradation. Furthermore, adenoviral hepatic overexpression of apoM resulted in increase in the S1P level of plasma but not of blood cells, while combination of hepatic apoM overexpression and intraperitoneal administration of C₁₇-sphingosine resulted in the increase in the C₁₇-S1P level both in livers and in plasma, but again not in blood cells.
    Conclusions: Livers are involved in S1P dynamism, and it was suggested that apoM, produced from livers, increases circulating plasma S1P by augmenting the S1P output from livers and modifies extracellular S1P metabolism.
    MeSH term(s) Adenoviridae/genetics ; Animals ; Apolipoproteins/genetics ; Apolipoproteins/metabolism ; Apolipoproteins M ; Atherosclerosis/metabolism ; Cholesterol, HDL/blood ; Cholesterol, VLDL/blood ; Gene Expression/physiology ; Hep G2 Cells ; Hepatectomy ; Humans ; Lipocalins/genetics ; Lipocalins/metabolism ; Liver/metabolism ; Liver/surgery ; Lysophospholipids/blood ; Lysophospholipids/metabolism ; Mice ; Mice, Inbred C57BL ; Sphingosine/analogs & derivatives ; Sphingosine/blood ; Sphingosine/metabolism ; Triglycerides/blood
    Chemical Substances APOM protein, human ; Apolipoproteins ; Apolipoproteins M ; Cholesterol, HDL ; Cholesterol, VLDL ; Lipocalins ; Lysophospholipids ; Triglycerides ; sphingosine 1-phosphate (26993-30-6) ; Sphingosine (NGZ37HRE42)
    Language English
    Publishing date 2013-07
    Publishing country Ireland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80061-2
    ISSN 1879-1484 ; 0021-9150
    ISSN (online) 1879-1484
    ISSN 0021-9150
    DOI 10.1016/j.atherosclerosis.2013.04.024
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Liver involvement in sphingosine 1-phosphate dynamism revealed by adenoviral hepatic overexpression of apolipoprotein M

    Kurano, Makoto / Tsukamoto, Kazuhisa / Ohkawa, Ryunosuke / Hara, Masumi / Iino, Junko / Kageyama, Yuko / Ikeda, Hitoshi / Yatomi, Yutaka

    Atherosclerosis. 2013 July, v. 229, no. 1

    2013  

    Abstract: ... to S1P. Since S1P riding on HDL was recently shown to bind to apolipoprotein M (apoM), which is derived ...

    Abstract OBJECTIVES: Sphingosine 1-phosphate (S1P) is a vasoprotective lipid mediator that is mainly carried on HDL in the circulation and several anti-atherosclerotic properties of HDL is considered to be ascribed to S1P. Since S1P riding on HDL was recently shown to bind to apolipoprotein M (apoM), which is derived from liver, we analyzed the possible involvement of liver in S1P metabolism. METHODS AND RESULTS: Using adenoviruses, we overexpressed apoM in HepG2 cells and mice livers and found that both the medium/plasma and cell/liver S1P contents increased. Among lipoprotein subclasses, S1P contents increased mainly in HDL fractions. On the other hand, hepatectomy resulted in the reduction of plasma S1P levels in mice. The incubation of S1P in the conditional medium of apoM-overexpressing HepG2 cells interfered with S1P degradation. Furthermore, adenoviral hepatic overexpression of apoM resulted in increase in the S1P level of plasma but not of blood cells, while combination of hepatic apoM overexpression and intraperitoneal administration of C₁₇-sphingosine resulted in the increase in the C₁₇-S1P level both in livers and in plasma, but again not in blood cells. CONCLUSIONS: Livers are involved in S1P dynamism, and it was suggested that apoM, produced from livers, increases circulating plasma S1P by augmenting the S1P output from livers and modifies extracellular S1P metabolism.
    Keywords Adenoviridae ; atherosclerosis ; blood cells ; high density lipoprotein ; human cell lines ; intraperitoneal injection ; liver ; metabolism ; mice ; sphingosine
    Language English
    Dates of publication 2013-07
    Size p. 102-109.
    Publishing place Elsevier Ireland Ltd
    Document type Article
    ZDB-ID 80061-2
    ISSN 1879-1484 ; 0021-9150
    ISSN (online) 1879-1484
    ISSN 0021-9150
    DOI 10.1016/j.atherosclerosis.2013.04.024
    Database NAL-Catalogue (AGRICOLA)

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  3. Article: Muscarinic M(2) acetylcholine receptor distribution in the guinea-pig gastrointestinal tract.

    Iino, S / Nojyo, Y

    Neuroscience

    2006  Volume 138, Issue 2, Page(s) 549–559

    Abstract: ... by muscarinic acetylcholine receptors on the surface of smooth muscle cells. Five different muscarinic receptor subtypes (M(1)-M(5 ... receptor. The muscarinic M(2) acetylcholine receptor is the major muscarinic receptor subtype expressed ... by smooth muscle tissues in the gastrointestinal tract, where it is coexpressed with a smaller population of M(3 ...

    Abstract In the enteric nervous system, acetylcholine is the most common neurotransmitter to induce gastrointestinal smooth muscle contractions. Cholinergic signaling is mediated by muscarinic acetylcholine receptors on the surface of smooth muscle cells. Five different muscarinic receptor subtypes (M(1)-M(5)) have been identified and characterized, all of which belong to the superfamily of the G-protein-coupled receptor. The muscarinic M(2) acetylcholine receptor is the major muscarinic receptor subtype expressed by smooth muscle tissues in the gastrointestinal tract, where it is coexpressed with a smaller population of M(3) receptor. In this study, we examined the immunohistochemical distribution of the M(2) receptor using a specific antibody in the guinea-pig gastrointestinal tract. M(2) receptor-like immunoreactivity was mainly observed as associated with smooth muscle cells in the gastrointestinal tract. M(2) receptor-like immunoreactivity in smooth muscle cells was distributed throughout the cell membrane associated with caveolae. In the proximal colon, M(2) receptor-like immunoreactivity in the smooth muscle cells was weak. In the small intestine, interstitial cells of Cajal that possessed neurokinin 1 receptor-like immunoreactivity had intense M(2) receptor-like immunoreactivity. In the proximal colon, intramuscular and myenteric interstitial cells of Cajal exhibited M(2) receptor-like immunoreactivity. These findings indicate that, in the gastrointestinal musculature, M(2) receptors are distributed both in the smooth muscle cells and interstitial cells of Cajal, suggesting that the M(2) receptor elicits smooth muscle cell contraction and the interstitial cells of Cajal are the sites of innervation by enteric cholinergic neurons.
    MeSH term(s) Animals ; Esophagus/physiology ; Guinea Pigs ; Immunoassay ; Intestine, Large/physiology ; Intestine, Small/physiology ; Male ; Muscle, Smooth/physiology ; Receptor, Muscarinic M2/analysis ; Stomach/physiology
    Chemical Substances Receptor, Muscarinic M2
    Language English
    Publishing date 2006
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 196739-3
    ISSN 1873-7544 ; 0306-4522
    ISSN (online) 1873-7544
    ISSN 0306-4522
    DOI 10.1016/j.neuroscience.2005.11.021
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: BAD detects coincidence of G2/M phase and growth factor deprivation to regulate apoptosis.

    Hashimoto, Akiko / Hirose, Kenzo / Iino, Masamitsu

    The Journal of biological chemistry

    2005  Volume 280, Issue 28, Page(s) 26225–26232

    Abstract: ... we report that BAD dissociates from 14-3-3zeta at each G2/M phase of proliferating lymphoid cells ... growth factor deprivation induced prompt apoptosis at the G2/M phase but not at the G1 phase. In cells ... that BAD induces apoptosis upon detecting the coincidence of G2/M phase and growth factor deprivation. ...

    Abstract BAD, a member of the Bcl-2 protein family, promotes mitochondria-dependent apoptosis. Here, we report that BAD dissociates from 14-3-3zeta at each G2/M phase of proliferating lymphoid cells. The cell cycle-dependent dissociation of BAD was associated with phosphorylation at Ser-128, whereas mutant S128A-BAD, in which Ser-128 was converted to alanine, remained associated with 14-3-3zeta throughout the cell cycle. Although the cell cycle-dependent dissociation of BAD per se did not induce apoptosis, growth factor deprivation induced prompt apoptosis at the G2/M phase but not at the G1 phase. In cells expressing S128A-BAD, growth factor deprivation-induced apoptosis was markedly delayed and was accompanied by a delayed dephosphorylation of growth factor-dependent regulatory serine residues. These results indicate that BAD induces apoptosis upon detecting the coincidence of G2/M phase and growth factor deprivation.
    MeSH term(s) 14-3-3 Proteins/chemistry ; Alanine/chemistry ; Animals ; Apoptosis ; Bacterial Proteins/metabolism ; Blotting, Western ; Carrier Proteins/chemistry ; Carrier Proteins/physiology ; Cell Cycle ; Cell Division ; Cell Line, Tumor ; Cell Proliferation ; DNA, Complementary/metabolism ; Dose-Response Relationship, Drug ; Escherichia coli/metabolism ; Flow Cytometry ; Fluorescence Resonance Energy Transfer ; G1 Phase ; G2 Phase ; Gene Library ; Green Fluorescent Proteins/metabolism ; Growth Substances/metabolism ; Humans ; Immunoblotting ; Immunoprecipitation ; Interleukin-3/metabolism ; Luminescent Proteins/metabolism ; Lymphocytes/metabolism ; Membrane Potentials ; Mice ; Mitochondria/metabolism ; Models, Biological ; Mutation ; NIH 3T3 Cells ; Nocodazole/pharmacology ; Phosphorylation ; Plasmids/metabolism ; Point Mutation ; Protein Binding ; Protein Structure, Tertiary ; Proto-Oncogene Proteins c-bcl-2/metabolism ; RNA Interference ; Recombinant Proteins/chemistry ; Serine/chemistry ; Spectrometry, Fluorescence ; Surface Plasmon Resonance ; Time Factors ; bcl-Associated Death Protein
    Chemical Substances 14-3-3 Proteins ; BAD protein, human ; Bacterial Proteins ; Bad protein, mouse ; Carrier Proteins ; Cyan Fluorescent Protein ; DNA, Complementary ; Growth Substances ; Interleukin-3 ; Luminescent Proteins ; Proto-Oncogene Proteins c-bcl-2 ; Recombinant Proteins ; bcl-Associated Death Protein ; yellow fluorescent protein, Bacteria ; Green Fluorescent Proteins (147336-22-9) ; Serine (452VLY9402) ; Alanine (OF5P57N2ZX) ; Nocodazole (SH1WY3R615)
    Language English
    Publishing date 2005-05-18
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2997-x
    ISSN 1083-351X ; 0021-9258
    ISSN (online) 1083-351X
    ISSN 0021-9258
    DOI 10.1074/jbc.M409363200
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Ultrasound-guided arthrocentesis for condylar head fracture: a technical report.

    Hemmi, Tomoharu / Uno, Tomohiro / Yusa, Kazuyuki / Ishikawa, Shigeo / Iino, Mitsuyoshi

    Oral radiology

    2024  

    Abstract: Objectives: Double puncture arthrocentesis (DPA) of the temporomandibular joint (TMD) is considered an effective preservative option for managing mandibular condylar head fractures. However, the procedure is commonly performed by a traditional "blind" ... ...

    Abstract Objectives: Double puncture arthrocentesis (DPA) of the temporomandibular joint (TMD) is considered an effective preservative option for managing mandibular condylar head fractures. However, the procedure is commonly performed by a traditional "blind" method using anatomical characteristics. In the present study, an ultrasonography (US) device was applied for the treatment of a case with a fractured mandibular condyle.
    Methods: A 79-year-old female was diagnosed right side condylar head fracture complaining pain of right TMD and reduced mouth opening range: inter-incisor distance of 20 mm. Since the fracture position was high and inoperable, the decision was made to perform DPA of the TMD. The US probe was positioned parallel and slightly oblique to the major axis of the mandibular ramus. Both the posterior and anterior insertions into the joint space were performed according to the axis mentioned above, which enabled the operator to visualize the entirety of the needle.
    Results: The device offered safety and ensured accuracy by providing real-time visual aid to the surgeon. The procedure provided an early increase in the inter-incisor distance (31 mm) and pain relief.
    Conclusions: Hence, for the preservative treatment of mandibular condylar head fractures, based on the present study, we recommend US-guided arthrocentesis as a safe, feasible, and effective therapeutic option instead of the conventional "blind" method.
    Language English
    Publishing date 2024-04-03
    Publishing country Japan
    Document type Journal Article
    ZDB-ID 639456-5
    ISSN 1613-9674 ; 0911-6028
    ISSN (online) 1613-9674
    ISSN 0911-6028
    DOI 10.1007/s11282-024-00744-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Dysregulated ceramide metabolism in mouse progressive dermatitis resulting from constitutive activation of Jak1.

    Iino, Yudai / Naganuma, Tatsuro / Arita, Makoto

    Journal of lipid research

    2023  Volume 64, Issue 2, Page(s) 100329

    Abstract: Coordinated lipid metabolism contributes to maintaining skin homeostasis by regulating skin barrier formation, immune reactions, thermogenesis, and perception. Several reports have documented the changes in lipid composition in dermatitis, including in ... ...

    Abstract Coordinated lipid metabolism contributes to maintaining skin homeostasis by regulating skin barrier formation, immune reactions, thermogenesis, and perception. Several reports have documented the changes in lipid composition in dermatitis, including in atopic dermatitis (AD); however, the specific mechanism by which these lipid profiles are altered during AD pathogenesis remains unknown. Here, we performed untargeted and targeted lipidomic analyses of an AD-like dermatitis model resulting from constitutive activation of Janus kinase 1 (Spade mice) to capture the comprehensive lipidome profile during dermatitis onset and progression. We successfully annotated over 700 skin lipids, including glycerophospholipids, ceramides, neutral lipids, and fatty acids, many of which were found to be present at significantly changed levels after dermatitis onset, as determined by the pruritus and erythema. Among them, we found the levels of ceramides composed of nonhydroxy fatty acid and dihydrosphingosine containing very long-chain (C22 or more) fatty acids were significantly downregulated before AD onset. Furthermore, in vitro enzyme assays using the skin of Spade mice demonstrated the enhancement of ceramide desaturation. Finally, we revealed topical application of ceramides composed of nonhydroxy fatty acid and dihydrosphingosine before AD onset effectively ameliorated the progression of AD symptoms in Spade mice. Our results suggest that the disruption in epidermal ceramide composition is caused by boosting ceramide desaturation in the initiation phase of AD, which regulates AD pathogenesis.
    MeSH term(s) Animals ; Mice ; Ceramides/metabolism ; Dermatitis, Atopic/metabolism ; Dermatitis, Atopic/pathology ; Fatty Acids ; Janus Kinase 1/metabolism ; Lipid Metabolism
    Chemical Substances Ceramides ; Fatty Acids ; Janus Kinase 1 (EC 2.7.10.2) ; safingol (OWA98U788S) ; Jak1 protein, mouse (EC 2.7.10.2)
    Language English
    Publishing date 2023-01-11
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80154-9
    ISSN 1539-7262 ; 0022-2275
    ISSN (online) 1539-7262
    ISSN 0022-2275
    DOI 10.1016/j.jlr.2023.100329
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  7. Article ; Online: Clinical evaluation of bone quality of particulate cancellous bone and marrow, and implant prosthetic rehabilitation.

    Yusa, Kazuyuki / Ishikawa, Shigeo / Suzuki, Nagiko / Kunii, Shunsuke / Okuyama, Naoki / Hemmi, Tomoharu / Iino, Mitsuyoshi

    Journal of stomatology, oral and maxillofacial surgery

    2024  , Page(s) 101862

    Abstract: This study aimed to subjectively evaluate bone quality in the particulate cancellous bone and marrow (PCBM) graft area and to assess the survival rates of implants. A retrospective review was conducted based on patient age, sex, diagnosis, reconstructed ... ...

    Abstract This study aimed to subjectively evaluate bone quality in the particulate cancellous bone and marrow (PCBM) graft area and to assess the survival rates of implants. A retrospective review was conducted based on patient age, sex, diagnosis, reconstructed site, number of implants, prosthetic type, and duration of follow-up. Images from computed tomography (CT) before implant insertion were obtained and used in this study. We selected a 4.0-mm diameter × 8.0-mm length region of interest in the implant placement area, and measured the CT attenuation value. No significant correlations were seen between CT attenuation values and implant survival rates in the maxilla and mandible. On the other hand, CT attenuation values and implant survival rates were significantly lower in patients with malignancy than in non-malignant cases. Placing implants in PCBM grafted bone requires a full understanding of bone quality before surgery and drilling to ensure primary stability, along with consideration of soft tissue management and maintenance programs.
    Language English
    Publishing date 2024-03-30
    Publishing country France
    Document type Journal Article
    ZDB-ID 2916276-2
    ISSN 2468-7855 ; 2468-8509
    ISSN (online) 2468-7855
    ISSN 2468-8509
    DOI 10.1016/j.jormas.2024.101862
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  8. Article ; Online: Activation of lateral preoptic neurons is associated with nest-building in male mice.

    Tagawa, Natsuki / Mori, Keita / Koebis, Michinori / Aiba, Atsu / Iino, Yuichi / Tsuneoka, Yousuke / Funato, Hiromasa

    Scientific reports

    2024  Volume 14, Issue 1, Page(s) 8346

    Abstract: Nest-building behavior is a widely observed innate behavior. A nest provides animals with a secure environment for parenting, sleep, feeding, reproduction, and temperature maintenance. Since animal infants spend their time in a nest, nest-building ... ...

    Abstract Nest-building behavior is a widely observed innate behavior. A nest provides animals with a secure environment for parenting, sleep, feeding, reproduction, and temperature maintenance. Since animal infants spend their time in a nest, nest-building behavior has been generally studied as parental behaviors, and the medial preoptic area (MPOA) neurons are known to be involved in parental nest-building. However, nest-building of singly housed male mice has been less examined. Here we show that male mice spent longer time in nest-building at the early to middle dark phase and at the end of the dark phase. These two periods are followed by sleep-rich periods. When a nest was removed and fresh nest material was introduced, both male and female mice built nests at Zeitgeber time (ZT) 6, but not at ZT12. Using Fos-immunostaining combined with double in situ hybridization of Vgat and Vglut2, we found that Vgat- and Vglut2-positive cells of the lateral preoptic area (LPOA) were the only hypothalamic neuron population that exhibited a greater number of activated cells in response to fresh nest material at ZT6, compared to being naturally awake at ZT12. Fos-positive LPOA neurons were negative for estrogen receptor 1 (Esr1). Both Vgat-positive and Vglut2-positive neurons in both the LPOA and MPOA were activated at pup retrieval by male mice. Our findings suggest the possibility that GABAergic and glutamatergic neurons in the LPOA are associated with nest-building behavior in male mice.
    MeSH term(s) Humans ; Mice ; Male ; Female ; Animals ; Hypothalamus/physiology ; Preoptic Area/physiology ; Neurons/physiology
    Language English
    Publishing date 2024-04-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-024-59061-z
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Iron corrosion concomitant with nitrate reduction by

    Iino, Takao / Oshima, Kenshiro / Hattori, Masahira / Ohkuma, Moriya / Amachi, Seigo

    Frontiers in microbiology

    2023  Volume 14, Page(s) 1232866

    Abstract: Microbially influenced corrosion (MIC) may contribute significantly to corrosion-related failures in injection wells and iron pipes of iodine production facilities. In this study, the iron ( ... ...

    Abstract Microbially influenced corrosion (MIC) may contribute significantly to corrosion-related failures in injection wells and iron pipes of iodine production facilities. In this study, the iron (Fe
    Language English
    Publishing date 2023-09-22
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2023.1232866
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  10. Article: Corrigendum: Iron corrosion concomitant with nitrate reduction by

    Iino, Takao / Oshima, Kenshiro / Hattori, Masahira / Ohkuma, Moriya / Amachi, Seigo

    Frontiers in microbiology

    2023  Volume 14, Page(s) 1303548

    Abstract: This corrects the article DOI: 10.3389/fmicb.2023.1232866.]. ...

    Abstract [This corrects the article DOI: 10.3389/fmicb.2023.1232866.].
    Language English
    Publishing date 2023-10-10
    Publishing country Switzerland
    Document type Published Erratum
    ZDB-ID 2587354-4
    ISSN 1664-302X
    ISSN 1664-302X
    DOI 10.3389/fmicb.2023.1303548
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