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  1. Article ; Online: Involvement of the Restoration of Cerebral Blood Flow and Maintenance of eNOS Expression in the Prophylactic Protective Effect of the Novel Ferulic Acid Derivative FAD012 against Ischemia/Reperfusion Injuries in Rats.

    Asano, Takashi / Xuan, Meiyan / Iwata, Naohiro / Takayama, Jun / Hayashi, Kousuke / Kato, Yosuke / Aoyama, Toshiya / Sugo, Hiroshi / Matsuzaki, Hirokazu / Yuan, Bo / Kamiuchi, Shinya / Hibino, Yasuhide / Sakamoto, Takeshi / Okazaki, Mari

    International journal of molecular sciences

    2023  Volume 24, Issue 11

    Abstract: Tissue plasminogen activator, aiming to restore cerebral blood flow (CBF), has been used for acute ischemic strokes in clinics; however, its narrow therapeutic time window remains a serious concern. To develop novel prophylactic drugs to alleviate ... ...

    Abstract Tissue plasminogen activator, aiming to restore cerebral blood flow (CBF), has been used for acute ischemic strokes in clinics; however, its narrow therapeutic time window remains a serious concern. To develop novel prophylactic drugs to alleviate cerebral ischemia/reperfusion injuries, ferulic acid derivative 012 (FAD012) was synthesized and showed comparable antioxidant properties to ferulic acid (FA) and probably possesses the potent ability to cross the blood-brain barrier. A more potent cytoprotective effect of FAD012 against H
    MeSH term(s) Animals ; Rats ; Brain Ischemia/drug therapy ; Cerebrovascular Circulation ; Endothelial Cells/metabolism ; Hydrogen Peroxide/therapeutic use ; Infarction, Middle Cerebral Artery/metabolism ; Neuroprotective Agents/pharmacology ; Nitric Oxide Synthase ; Rats, Sprague-Dawley ; Reperfusion Injury/drug therapy ; Reperfusion Injury/prevention & control ; Reperfusion Injury/metabolism ; Tissue Plasminogen Activator/therapeutic use
    Chemical Substances ferulic acid (AVM951ZWST) ; Hydrogen Peroxide (BBX060AN9V) ; Neuroprotective Agents ; Nitric Oxide Synthase (EC 1.14.13.39) ; Tissue Plasminogen Activator (EC 3.4.21.68) ; FAD012
    Language English
    Publishing date 2023-06-02
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24119663
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Involvement of the Restoration of Cerebral Blood Flow and Maintenance of eNOS Expression in the Prophylactic Protective Effect of the Novel Ferulic Acid Derivative FAD012 against Ischemia/Reperfusion Injuries in Rats

    Takashi Asano / Meiyan Xuan / Naohiro Iwata / Jun Takayama / Kousuke Hayashi / Yosuke Kato / Toshiya Aoyama / Hiroshi Sugo / Hirokazu Matsuzaki / Bo Yuan / Shinya Kamiuchi / Yasuhide Hibino / Takeshi Sakamoto / Mari Okazaki

    International Journal of Molecular Sciences, Vol 24, Iss 9663, p

    2023  Volume 9663

    Abstract: Tissue plasminogen activator, aiming to restore cerebral blood flow (CBF), has been used for acute ischemic strokes in clinics; however, its narrow therapeutic time window remains a serious concern. To develop novel prophylactic drugs to alleviate ... ...

    Abstract Tissue plasminogen activator, aiming to restore cerebral blood flow (CBF), has been used for acute ischemic strokes in clinics; however, its narrow therapeutic time window remains a serious concern. To develop novel prophylactic drugs to alleviate cerebral ischemia/reperfusion injuries, ferulic acid derivative 012 (FAD012) was synthesized and showed comparable antioxidant properties to ferulic acid (FA) and probably possesses the potent ability to cross the blood–brain barrier. A more potent cytoprotective effect of FAD012 against H 2 O 2 -induced cytotoxicity in PC12 cells was also observed. In vivo toxicity was not observed in rats given a long-term oral administration of FAD012, indicating its good tolerability. A one-week-course oral administration of FAD012 significantly alleviated middle cerebral artery occlusion (MCAO)-induced cerebral ischemia/reperfusion injuries in rats, accompanied by the restoration of CBF and endothelial nitrogen oxide synthetase (eNOS) expression. Treatment with FAD012 significantly restored the cell viability and eNOS expression damaged by H 2 O 2 , used to mimic MCAO-triggered oxidative stress, in rat brain microvascular endothelial cells. Our findings suggested that FAD012 protected the viability of vascular endothelium and maintained eNOS expression, ultimately contributing to the restoration of CBF, and may provide a rationale for the development of FAD012 into an effective prophylactic drug for patients at high risk of stroke.
    Keywords ferulic acid derivative ; middle cerebral artery occlusion ; ischemia/reperfusion injury ; cerebral blood flow ; oxidative stress ; endothelial nitrogen oxide synthetase ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 610
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: [A Case of Noninvasive Ductal Carcinoma Arising in Benign Phyllodes Tumor].

    Sazuka, Tetsutaro / Kimura, Masayuki / Iwata, Moe / Muto, Yasuhide / Arasawa, Takahiro / Kuboshima, Mari / Tasaki, Kentaro / Sugamoto, Yuji / Denda, Yuya / Asai, Yo / Fukunaga, Toru / Matsubara, Hisahiro

    Gan to kagaku ryoho. Cancer & chemotherapy

    2022  Volume 49, Issue 1, Page(s) 97–99

    Abstract: A 70-year-old woman underwent a partial mastectomy with preoperative diagnosis of phyllodes tumor. Histopathological examination of the resected specimen revealed noninvasive ductal carcinoma of up to 20 mm in the phyllodes tumor. We note the possibility ...

    Abstract A 70-year-old woman underwent a partial mastectomy with preoperative diagnosis of phyllodes tumor. Histopathological examination of the resected specimen revealed noninvasive ductal carcinoma of up to 20 mm in the phyllodes tumor. We note the possibility of a situation in which a phyllodes tumor is accompanied by cancer, and detailed pathological examination is necessary.
    MeSH term(s) Aged ; Breast Neoplasms/surgery ; Carcinoma, Ductal, Breast/surgery ; Female ; Humans ; Mastectomy ; Mastectomy, Segmental ; Phyllodes Tumor/surgery
    Language Japanese
    Publishing date 2022-01-19
    Publishing country Japan
    Document type Case Reports ; Journal Article
    ZDB-ID 604842-0
    ISSN 0385-0684
    ISSN 0385-0684
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Enhanced Cytotoxic Effects of Arenite in Combination with Active Bufadienolide Compounds against Human Glioblastoma Cell Line U-87.

    Yuan, Bo / Li, Jingmei / Miyashita, Shin-Ich / Kikuchi, Hidetomo / Xuan, Meiyan / Matsuzaki, Hirokazu / Iwata, Naohiro / Kamiuchi, Shinya / Sunaga, Katsuyoshi / Sakamoto, Takeshi / Hibino, Yasuhide / Okazaki, Mari

    Molecules (Basel, Switzerland)

    2022  Volume 27, Issue 19

    Abstract: The cytotoxicity of a trivalent arsenic derivative (arsenite, ... ...

    Abstract The cytotoxicity of a trivalent arsenic derivative (arsenite, As
    MeSH term(s) Antineoplastic Agents/pharmacology ; Apoptosis ; Arsenic/metabolism ; Arsenites/pharmacology ; Bufanolides/pharmacology ; Caspase 8/metabolism ; Caspase 9/metabolism ; Cell Line ; Cell Line, Tumor ; Glioblastoma/drug therapy ; Glioblastoma/metabolism ; Humans
    Chemical Substances Antineoplastic Agents ; Arsenites ; Bufanolides ; Caspase 8 (EC 3.4.22.-) ; Caspase 9 (EC 3.4.22.-) ; Arsenic (N712M78A8G)
    Language English
    Publishing date 2022-10-04
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules27196577
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Assessment of Screening for Nasal Obstruction among Sleep Dentistry Outpatients with Obstructive Sleep Apnea.

    Sawa, Arisa / Suzuki, Hiroshi / Niwa, Hideo / Oguchi, Sumito / Yagi, Tatsuo / Iwata, Yoshihiro / Makiyama, Yasuhide / Chow, Chin Moi / Komiyama, Osamu

    Dentistry journal

    2020  Volume 8, Issue 4

    Abstract: Oral appliances (OA), a common treatment modality for obstructive sleep apnea (OSA), are not suitable for patients with nasal obstruction. Rhinomanometry, the gold standard technique to assess nasal airway resistance, is not readily available in sleep ... ...

    Abstract Oral appliances (OA), a common treatment modality for obstructive sleep apnea (OSA), are not suitable for patients with nasal obstruction. Rhinomanometry, the gold standard technique to assess nasal airway resistance, is not readily available in sleep dentistry clinics. We demonstrate the use of a portable lightweight peak nasal inspiratory flow (PNIF) rate meter to objectively assess nasal airflow and utilized the Nasal Obstruction Symptom Evaluation (NOSE) scale to subjectively assess nasal obstruction in 97 patients with OSA and 105 healthy controls. We examined the correlations between the following variables between the groups: demographics, body mass index, PNIF, NOSE scale scores, apnea-hypopnea index (AHI), minimum SpO
    Language English
    Publishing date 2020-10-14
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2681351-8
    ISSN 2304-6767 ; 2304-6767
    ISSN (online) 2304-6767
    ISSN 2304-6767
    DOI 10.3390/dj8040119
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Elemental composition and ultrafine structure of the skeleton in shell-bearing protists-A case study of phaeodarians and radiolarians.

    Nakamura, Yasuhide / Iwata, Izumi / Hori, Rie S / Uchiyama, Naomi / Tuji, Akihiro / Fujita, Masaki J / Honda, Daiske / Ohfuji, Hiroaki

    Journal of structural biology

    2018  Volume 204, Issue 1, Page(s) 45–51

    Abstract: Cross-sections were prepared by ultramicrotome (UM) and focused ion beam (FIB) system in order to examine the skeletal structure of ecologically and geologically important shell-bearing protists: phaeodarians and radiolarians. The elemental composition ... ...

    Abstract Cross-sections were prepared by ultramicrotome (UM) and focused ion beam (FIB) system in order to examine the skeletal structure of ecologically and geologically important shell-bearing protists: phaeodarians and radiolarians. The elemental composition of the skeleton was clarified by the energy dispersive X-ray spectroscopy, suggesting that the skeletons of both groups are mainly made of amorphous silica (SiO
    MeSH term(s) Cercozoa/ultrastructure ; Microscopy, Electron, Transmission ; Rhizaria/ultrastructure ; Silicon Dioxide/chemistry ; Skeleton/ultrastructure ; Spectrometry, X-Ray Emission
    Chemical Substances Silicon Dioxide (7631-86-9)
    Language English
    Publishing date 2018-07-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1032718-6
    ISSN 1095-8657 ; 1047-8477
    ISSN (online) 1095-8657
    ISSN 1047-8477
    DOI 10.1016/j.jsb.2018.06.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Deterioration of clinical features of a patient with autism spectrum disorder after anti-N-methyl-D-aspartate receptor encephalitis.

    Kurita, Daisuke / Wakuda, Tomoyasu / Takagai, Shu / Takahashi, Yukitoshi / Iwata, Yasuhide / Suzuki, Katsuaki / Mori, Norio

    Psychiatry and clinical neurosciences

    2015  Volume 69, Issue 8, Page(s) 507

    MeSH term(s) Anti-N-Methyl-D-Aspartate Receptor Encephalitis/complications ; Anti-N-Methyl-D-Aspartate Receptor Encephalitis/diagnosis ; Autism Spectrum Disorder/complications ; Autism Spectrum Disorder/diagnosis ; Female ; Humans ; Young Adult
    Language English
    Publishing date 2015-08
    Publishing country Australia
    Document type Case Reports ; Letter
    ZDB-ID 1292906-2
    ISSN 1440-1819 ; 1323-1316
    ISSN (online) 1440-1819
    ISSN 1323-1316
    DOI 10.1111/pcn.12323
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Mismatch in cerebral blood flow and glucose metabolism after the forced swim stress in rats.

    Kameno, Yosuke / Suzuki, Katsuaki / Takagai, Shu / Iwata, Keiko / Matsuzaki, Hideo / Takahashi, Kenji / Wakuda, Tomoyasu / Iwata, Yasuhide / Magata, Yasuhiro / Mori, Norio

    Acta neuropsychiatrica

    2016  Volume 28, Issue 6, Page(s) 352–356

    Abstract: Objective: Neuroimaging studies of depression considered as a stress-related disorder have shown uncoupling in regional cerebral blood flow (rCBF) and regional cerebral metabolic rate for glucose (rCMRglc). We hypothesised that the mismatch change of ... ...

    Abstract Objective: Neuroimaging studies of depression considered as a stress-related disorder have shown uncoupling in regional cerebral blood flow (rCBF) and regional cerebral metabolic rate for glucose (rCMRglc). We hypothesised that the mismatch change of rCBF and rCMRglc could be a stress-related phenomenon.
    Methods: We exposed male rats to 15-min period of forced swim (FS), followed by the measurement of rCBF using N-isopropyl-4-[123I] iodoamphetamine (123I-IMP) and rCMRglc using 2-deoxy-2-[18F] fluoro-D-glucose (18F-FDG).
    Results: The uptake rate of 18F-FDG in the FS group showed a significant decrease in the prefrontal cortex (0.86±0.20%ID/g, p<0.01) and thalamus (0.77±0.17%ID/g, p<0.05) and tended to be lower in the hippocampus (0.58±0.13%ID/g) and cerebellum (0.59±0.13%ID/g) without overt alteration in the uptake rate of 123I-IMP.
    Conclusions: The FS stress can cause mismatch change of rCBF and rCMRglc, which reflect a stress-related phenomenon.
    MeSH term(s) Animals ; Brain/blood supply ; Brain/metabolism ; Cerebrovascular Circulation ; Glucose/metabolism ; Male ; Rats ; Rats, Sprague-Dawley ; Stress, Psychological/metabolism ; Stress, Psychological/physiopathology ; Swimming
    Chemical Substances Glucose (IY9XDZ35W2)
    Language English
    Publishing date 2016-12
    Publishing country England
    Document type Journal Article
    ZDB-ID 1154361-9
    ISSN 1601-5215 ; 0924-2708
    ISSN (online) 1601-5215
    ISSN 0924-2708
    DOI 10.1017/neu.2016.24
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Effects of Etanercept against Transient Cerebral Ischemia in Diabetic Rats.

    Iwata, Naohiro / Takayama, Hiroko / Xuan, Meiyan / Kamiuchi, Shinya / Matsuzaki, Hirokazu / Okazaki, Mari / Hibino, Yasuhide

    BioMed research international

    2015  Volume 2015, Page(s) 189292

    Abstract: Diabetes mellitus is known to exacerbate acute cerebral ischemic injury. Previous studies have demonstrated that infarction volumes caused by transient cerebral ischemia were greater in diabetic rats than in nondiabetic rats. Tumor necrosis factor-α (TNF- ...

    Abstract Diabetes mellitus is known to exacerbate acute cerebral ischemic injury. Previous studies have demonstrated that infarction volumes caused by transient cerebral ischemia were greater in diabetic rats than in nondiabetic rats. Tumor necrosis factor-α (TNF-α) is a proinflammatory protein produced in the brain in response to cerebral ischemia that promotes apoptosis. Etanercept (ETN), a recombinant TNF receptor (p75)-Fc fusion protein, competitively inhibits TNF-α. Therefore, we evaluated the neuroprotective effects of chronic or acute treatment with ETN on cerebral injury caused by middle cerebral artery occlusion/reperfusion (MCAO/Re) in rats with streptozotocin-induced diabetes. Furthermore, we evaluated the effects of ETN against the apoptosis and myeloperoxidase activity. Single administration of ETN before MCAO significantly suppressed exacerbation of cerebral damage in nondiabetic rats, as assessed by infarct volume. In contrast, the diabetic state markedly aggravated MCAO/Re-induced cerebral damage despite ETN treatment within 24 h before MCAO. However, the damage was improved by repeated administration of ETN at 900 μg/kg/daily in rats in an induced diabetic state. These results suggested that repeated administration of ETN can prevent exacerbation of cerebral ischemic injury in the diabetic state and is mainly attributed to anti-inflammatory effects.
    MeSH term(s) Animals ; Apoptosis/drug effects ; Diabetes Mellitus, Experimental/complications ; Diabetes Mellitus, Experimental/drug therapy ; Diabetes Mellitus, Experimental/genetics ; Diabetes Mellitus, Experimental/physiopathology ; Etanercept/administration & dosage ; Humans ; Infarction, Middle Cerebral Artery/drug therapy ; Infarction, Middle Cerebral Artery/genetics ; Infarction, Middle Cerebral Artery/physiopathology ; Inflammation/drug therapy ; Inflammation/genetics ; Inflammation/pathology ; Ischemic Attack, Transient/complications ; Ischemic Attack, Transient/drug therapy ; Ischemic Attack, Transient/genetics ; Ischemic Attack, Transient/physiopathology ; Neuroprotective Agents ; Rats ; Tumor Necrosis Factor-alpha/antagonists & inhibitors ; Tumor Necrosis Factor-alpha/metabolism
    Chemical Substances Neuroprotective Agents ; Tumor Necrosis Factor-alpha ; Etanercept (OP401G7OJC)
    Language English
    Publishing date 2015
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2698540-8
    ISSN 2314-6141 ; 2314-6133
    ISSN (online) 2314-6141
    ISSN 2314-6133
    DOI 10.1155/2015/189292
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Bactericidal Effects and Mechanism of Action of Olanexidine Gluconate, a New Antiseptic.

    Hagi, Akifumi / Iwata, Koushi / Nii, Takuya / Nakata, Hikaru / Tsubotani, Yoshie / Inoue, Yasuhide

    Antimicrobial agents and chemotherapy

    2015  Volume 59, Issue 8, Page(s) 4551–4559

    Abstract: Olanexidine gluconate [1-(3,4-dichlorobenzyl)-5-octylbiguanide gluconate] (development code OPB-2045G) is a new monobiguanide compound with bactericidal activity. In this study, we assessed its spectrum of bactericidal activity and mechanism of action. ... ...

    Abstract Olanexidine gluconate [1-(3,4-dichlorobenzyl)-5-octylbiguanide gluconate] (development code OPB-2045G) is a new monobiguanide compound with bactericidal activity. In this study, we assessed its spectrum of bactericidal activity and mechanism of action. The minimal bactericidal concentrations of the compound for 30-, 60-, and 180-s exposures were determined with the microdilution method using a neutralizer against 320 bacterial strains from culture collections and clinical isolates. Based on the results, the estimated bactericidal olanexidine concentrations with 180-s exposures were 869 μg/ml for Gram-positive cocci (155 strains), 109 μg/ml for Gram-positive bacilli (29 strains), and 434 μg/ml for Gram-negative bacteria (136 strains). Olanexidine was active against a wide range of bacteria, especially Gram-positive cocci, including methicillin-resistant Staphylococcus aureus and vancomycin-resistant enterococci, and had a spectrum of bactericidal activity comparable to that of commercial antiseptics, such as chlorhexidine and povidone-iodine. In vitro experiments exploring its mechanism of action indicated that olanexidine (i) interacts with the bacterial surface molecules, such as lipopolysaccharide and lipoteichoic acid, (ii) disrupts the cell membranes of liposomes, which are artificial bacterial membrane models, (iii) enhances the membrane permeability of Escherichia coli, (iv) disrupts the membrane integrity of S. aureus, and (v) denatures proteins at relatively high concentrations (≥160 μg/ml). These results indicate that olanexidine probably binds to the cell membrane, disrupts membrane integrity, and its bacteriostatic and bactericidal effects are caused by irreversible leakage of intracellular components. At relatively high concentrations, olanexidine aggregates cells by denaturing proteins. This mechanism differs slightly from that of a similar biguanide compound, chlorhexidine.
    MeSH term(s) Anti-Bacterial Agents/pharmacology ; Anti-Infective Agents, Local/pharmacology ; Biguanides/pharmacology ; Cell Membrane/drug effects ; Chlorhexidine/pharmacology ; Escherichia coli/drug effects ; Gluconates/pharmacology ; Methicillin-Resistant Staphylococcus aureus/drug effects ; Microbial Sensitivity Tests/methods ; Povidone-Iodine/pharmacology
    Chemical Substances Anti-Bacterial Agents ; Anti-Infective Agents, Local ; Biguanides ; Gluconates ; Povidone-Iodine (85H0HZU99M) ; olanexidine (92C2328G7P) ; Chlorhexidine (R4KO0DY52L) ; gluconic acid (R4R8J0Q44B)
    Language English
    Publishing date 2015-08
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 217602-6
    ISSN 1098-6596 ; 0066-4804
    ISSN (online) 1098-6596
    ISSN 0066-4804
    DOI 10.1128/AAC.05048-14
    Database MEDical Literature Analysis and Retrieval System OnLINE

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