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  1. Article ; Online: Pericardial effusion in the course of Fabry disease cardiomyopathy: a case report.

    Tsuruda, Toshihiro / Higashi, Yoshimasa / Gi, Toshihiro / Nakao, Shoichiro

    European heart journal. Case reports

    2021  Volume 5, Issue 10, Page(s) ytab407

    Abstract: Background: Fabry disease (FD) is an X-chromosome-linked inherited disorder of glycosphingolipid metabolism due to deficient or absent lysosomal α-galactosidase A activity.: Case summary: A 51-year-old Japanese woman with a previous diagnosis of FD ... ...

    Abstract Background: Fabry disease (FD) is an X-chromosome-linked inherited disorder of glycosphingolipid metabolism due to deficient or absent lysosomal α-galactosidase A activity.
    Case summary: A 51-year-old Japanese woman with a previous diagnosis of FD presented with pericardial effusion. The exudative pericardial fluid contained globotriaosylsphingosine. Left ventricular hypertrophy progressed despite regular administration of agalsidase alfa every 2 weeks over a 7-year period, with increases in plasma levels of globotriaosylsphingosine and interleukin (IL)-18. In addition, the IL-6 level in the pericardial fluid was markedly higher than that in plasma.
    Discussion: This case suggests that elevated IL-6 and IL-18 levels in pericardial fluid and plasma indicate the severity of FD cardiomyopathy.
    Language English
    Publishing date 2021-10-07
    Publishing country England
    Document type Case Reports
    ISSN 2514-2119
    ISSN (online) 2514-2119
    DOI 10.1093/ehjcr/ytab407
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Osteoprotegerin: osteo-vascular connection.

    Tsuruda, Toshihiro

    Journal of atherosclerosis and thrombosis

    2015  Volume 22, Issue 3, Page(s) 233–234

    MeSH term(s) Ankle/blood supply ; Humans ; Hypertension/blood ; Osteoprotegerin/blood
    Chemical Substances Osteoprotegerin
    Language English
    Publishing date 2015
    Publishing country Japan
    Document type Comment ; Editorial ; Research Support, Non-U.S. Gov't
    ZDB-ID 2011474-6
    ISSN 1880-3873 ; 1340-3478
    ISSN (online) 1880-3873
    ISSN 1340-3478
    DOI 10.5551/jat.ED004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Bystander-witnessed cardiopulmonary resuscitation by nonfamily is associated with neurologically favorable survival after out-of-hospital cardiac arrest in Miyazaki City District.

    Tsuruda, Toshihiro / Hamahata, Takaaki / Endo, George J / Tsuruda, Yuki / Kaikita, Koichi

    PloS one

    2022  Volume 17, Issue 10, Page(s) e0276574

    Abstract: Background: Bystander intervention in cases of out-of-hospital cardiac arrest (OHCA) is a key factor in bridging the gap between the event and the arrival of emergency health services at the site. This study investigated the implementation rate of ... ...

    Abstract Background: Bystander intervention in cases of out-of-hospital cardiac arrest (OHCA) is a key factor in bridging the gap between the event and the arrival of emergency health services at the site. This study investigated the implementation rate of bystander cardiopulmonary resuscitation (CPR) and automated external defibrillator (AED) and 1-month survival after OHCA in Miyazaki prefecture and Miyazaki city district as well as compared them with those of eight prefectures in the Kyushu-Okinawa region in Japan. In addition, we analyzed prehospital factors associated with survival outcomes in Miyazaki city district.
    Methods: We used data from an annual report released by the Fire and Disaster Management Agency of Japan (n = 627,982) and the Utstein reporting database in Miyazaki city district (n = 1,686) from 2015 to 2019.
    Result: Despite having the highest rate of bystander CPR (20.8%), the 1-month survival rate (15.7%) of witnessed OHCA cases of cardiac causes in Miyazaki city district was comparable with that in the eight prefectures between 2015 and 2019. However, rates of survival (10.7%) in Miyazaki prefecture were lower than those in other prefectures. In 1,686 patients with OHCA (74 ± 18 years old, 59% male) from the Utstein reporting database identical to the 5-year study period in Miyazaki city district, binary logistic regression analysis demonstrated that age of the recipient [odds ratio (OR) 0.979, 95% confidential interval (CI) 0.964-0.993, p = 0.004)], witness of the arrest event (OR 7.501, 95% CI 3.229-17.428, p < 0.001), AED implementation (OR 14.852, 95% CI 4.226-52.201, p < 0.001), and return of spontaneous circulation (ROSC) before transport (OR 31.070, 95% CI 16.585-58.208, p < 0.001) predicted the 1-month survival with favorable neurological outcomes. In addition, chest compression at a public place (p < 0.001) and by nonfamily members (p < 0.001) were associated with favorable outcomes (p = 0.015).
    Conclusions: We found differences in 1-month survival rates after OHCA in the Kyushu-Okinawa region of Japan. Our results suggest that on-field ROSC with defibrillation performed by nonfamily bystanders who witnessed the event determines 1-month neurological outcomes after OHCA in Miyazaki city district. Continued education of citizens on CPR techniques and better access to AED devices may improve outcomes.
    MeSH term(s) Humans ; Male ; Middle Aged ; Aged ; Aged, 80 and over ; Female ; Out-of-Hospital Cardiac Arrest ; Cardiopulmonary Resuscitation/methods ; Defibrillators ; Emergency Medical Services ; Survival Rate ; Japan/epidemiology ; Registries
    Language English
    Publishing date 2022-10-21
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0276574
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Increasing baseline aortic valve peak flow velocity is associated with progression of aortic valve stenosis in osteoporosis patients-a possible link to low vitamin D status.

    Tsuruda, Toshihiro / Funamoto, Taro / Suzuki, Chiyoko / Yamamura, Yoshimasa / Nakai, Michikazu / Chosa, Etsuo / Kaikita, Koichi

    Archives of osteoporosis

    2023  Volume 18, Issue 1, Page(s) 129

    Abstract: Purpose: The purpose of this study was to investigate the morphological characteristics of the aortic valve and identify factors associated with the progression of aortic valve stenosis (AS) in osteoporosis patients.: Methods: In this single-center ... ...

    Abstract Purpose: The purpose of this study was to investigate the morphological characteristics of the aortic valve and identify factors associated with the progression of aortic valve stenosis (AS) in osteoporosis patients.
    Methods: In this single-center prospective cohort study, we recruited 10 patients (mean age: 75 ± 7 years, 90% female) who were taking anti-resorptive medicines at the outpatient clinic of University of Miyazaki Hospital, Japan. Baseline assessments, including transthoracic echocardiogram, blood sampling, and dual energy X-ray absorptiometry, were performed. Follow-up assessments were conducted at 6, 12, 18, and 24 months.
    Results: During the 2-year follow-up, three patients with aortic valve peak flow velocity (AV PFV) ≥2 m/s at baseline developed moderate AS, which is defined as AV PFV ≥3 m/s. However, seven patients with AV PFV <2 m/s did not exhibit any progression of AS. There were significant variations in terms of bone mineral density, T-score values, and biomarkers associated with bone turnover (i.e., bone alkaline phosphatase, tartrate-resistance acid phosphatase-5b) among the enrolled patients, but none of these factors were found to be associated with the progression of AS. All patients exhibited low vitamin D status, with a median level of 16.1 ng/mL (25
    Conclusion: Our data suggest that low vitamin D status might be a potential risk factor for the progression of AS in osteoporosis patients undergoing treatment with anti-resorptive medicines. Elderly patients with osteoporosis patients exhibited a subset of aortic valve stenosis. Our data suggest that the baseline aortic valve peak flow velocity predicts the progression of aortic valve stenosis, and there might be an association between the progression and the co-existing low vitamin D status in these patients.
    MeSH term(s) Humans ; Female ; Aged ; Aged, 80 and over ; Male ; Aortic Valve/diagnostic imaging ; Prospective Studies ; Aortic Valve Stenosis/diagnostic imaging ; Vitamin D ; Osteoporosis/diagnostic imaging ; Osteoporosis/complications
    Chemical Substances Vitamin D (1406-16-2)
    Language English
    Publishing date 2023-10-24
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2253231-6
    ISSN 1862-3514 ; 1862-3522
    ISSN (online) 1862-3514
    ISSN 1862-3522
    DOI 10.1007/s11657-023-01339-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Natriuretic peptides potentiate cardiac hypertrophic response to noradrenaline in rats.

    Jiang, Danfeng / Matsuzaki, Minami / Ida, Takanori / Kitamura, Kazuo / Tsuruda, Toshihiro / Kaikita, Koichi / Kato, Johji

    Peptides

    2023  Volume 166, Page(s) 171035

    Abstract: Excessive activation of the sympathetic nervous system is involved in cardiovascular damage including cardiac hypertrophy. Natriuretic peptides are assumed to exert protective actions for the heart, alleviating hypertrophy and/or fibrosis of the ... ...

    Abstract Excessive activation of the sympathetic nervous system is involved in cardiovascular damage including cardiac hypertrophy. Natriuretic peptides are assumed to exert protective actions for the heart, alleviating hypertrophy and/or fibrosis of the myocardium. In contrast to this assumption, we show in the present study that both atrial and C-type natriuretic peptides (ANP and CNP) potentiate cardiac hypertrophic response to noradrenaline (NA) in rats. Nine-week-old male Wistar rats were continuously infused with subcutaneous 30 micro-g/h NA without or with persistent intravenous administration of either 1.0 micro-g/h ANP or CNP for 14 days. Blood pressure (BP) was recorded under an unrestrained condition by a radiotelemetry system. Cardiac hypertrophic response to NA was evaluated by heart weight/body weight (HW/BW) ratio and microscopic measurement of myocyte size of the left ventricle. Mean BP levels at the light and dark cycles rose by about 20 mmHg following NA infusion for 14 days, with slight increases in HW/BW ratio and ventricular myocyte size. Infusions of ANP and CNP had no significant effects on mean BP in NA-infused rats, while two natriuretic peptides potentiated cardiac hypertrophic response to NA. Cardiac hypertrophy induced by co-administration of NA and ANP was attenuated by treatment with prazosin or atenolol. In summary, both ANP and CNP potentiated cardiac hypertrophic effect of continuously infused NA in rats, suggesting a possible pro-hypertrophic action of natriuretic peptides on the heart.
    MeSH term(s) Rats ; Animals ; Male ; Rats, Wistar ; Norepinephrine/pharmacology ; Atrial Natriuretic Factor ; Cardiomegaly/chemically induced ; Cardiomegaly/drug therapy ; Blood Pressure ; Natriuretic Peptide, C-Type/pharmacology ; Natriuretic Peptide, Brain/pharmacology
    Chemical Substances Norepinephrine (X4W3ENH1CV) ; Atrial Natriuretic Factor (85637-73-6) ; Natriuretic Peptide, C-Type (127869-51-6) ; Natriuretic Peptide, Brain (114471-18-0)
    Language English
    Publishing date 2023-05-31
    Publishing country United States
    Document type Journal Article
    ZDB-ID 769028-9
    ISSN 1873-5169 ; 0196-9781
    ISSN (online) 1873-5169
    ISSN 0196-9781
    DOI 10.1016/j.peptides.2023.171035
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Getting Osteoporotic Fracture Risk Into Vascular Structure and Function - Do You Know Your FRAX

    Tsuruda, Toshihiro / Kitamura, Kazuo

    Circulation journal : official journal of the Japanese Circulation Society

    2017  Volume 81, Issue 6, Page(s) 786–787

    MeSH term(s) Absorptiometry, Photon ; Algorithms ; Bone Density ; Humans ; Osteoporotic Fractures ; Risk ; Risk Assessment ; Risk Factors
    Language English
    Publishing date 2017--25
    Publishing country Japan
    Document type Journal Article ; Comment
    ZDB-ID 2068090-9
    ISSN 1347-4820 ; 1346-9843
    ISSN (online) 1347-4820
    ISSN 1346-9843
    DOI 10.1253/circj.CJ-17-0221
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  7. Article ; Online: Analysis of Mechanisms for Increased Blood Pressure Variability in Rats Continuously Infused with Angiotensin II.

    Jiang, Danfeng / Matsuzaki, Minami / Kawagoe, Yukiko / Kitamura, Kazuo / Tsuruda, Toshihiro / Kaikita, Koichi / Asada, Yujiro / Kato, Johji

    Journal of the renin-angiotensin-aldosterone system : JRAAS

    2023  Volume 2023, Page(s) 4201342

    Abstract: Objective: We reported that rats infused with angiotensin II (Ang II) are not only a model of hypertension but also of augmented 24 h blood pressure variability (BPV). In this study, we examined the mechanisms for Ang II-induced BPV, focusing on BP, ... ...

    Abstract Objective: We reported that rats infused with angiotensin II (Ang II) are not only a model of hypertension but also of augmented 24 h blood pressure variability (BPV). In this study, we examined the mechanisms for Ang II-induced BPV, focusing on BP, heart rate (HR), baroreceptor reflex sensitivity (BRS), and medial area of the aortic arch.
    Methods: Nine-week-old male Wistar rats were infused with subcutaneous 5.2 
    Results: BPV increased at days 7 and 14 following continuous infusion of Ang II. Before the infusion, a positive correlation was found between BP and HR, but it became negative at day 7 and then weakened or disappeared at day 14. BRS was slightly impaired at day 7 and significantly lowered at day 14, a phenomenon accompanied by thickened medial area of the aortic arch in Ang II-infused rats. Those Ang II-induced alterations were all significantly attenuated by azelnidipine.
    Conclusions: The present findings suggest sequential changes in the mechanisms behind augmented BPV in rats continuously infused with Ang II over 14 days.
    MeSH term(s) Rats ; Male ; Animals ; Blood Pressure ; Angiotensin II/pharmacology ; Rats, Wistar ; Hypertension/drug therapy
    Chemical Substances azelnidipine (PV23P19YUG) ; Angiotensin II (11128-99-7)
    Language English
    Publishing date 2023-01-04
    Publishing country England
    Document type Journal Article
    ZDB-ID 2086948-4
    ISSN 1752-8976 ; 1470-3203
    ISSN (online) 1752-8976
    ISSN 1470-3203
    DOI 10.1155/2023/4201342
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  8. Article: Nitroglycerin use and adverse clinical outcomes in elderly patients with acute coronary syndrome.

    Komaki, Soichi / Matsuura, Yunosuke / Tanaka, Hiroki / Moribayashi, Kohei / Yamamura, Yoshimasa / Kurogi, Kazumasa / Ideguchi, Takeshi / Yamamoto, Nobuyasu / Nakai, Michikazu / Tsuruda, Toshihiro / Kaikita, Koichi

    Open heart

    2024  Volume 11, Issue 1

    Abstract: Objective: The primary care for acute coronary syndrome (ACS) includes the administration of nitroglycerin (GTN). This study aimed to investigate the association between the use of GTN before percutaneous coronary intervention (PCI) for ACS and clinical ...

    Abstract Objective: The primary care for acute coronary syndrome (ACS) includes the administration of nitroglycerin (GTN). This study aimed to investigate the association between the use of GTN before percutaneous coronary intervention (PCI) for ACS and clinical outcomes.
    Methods: Nine-hundred and forty-seven patients who underwent PCI for ACS were examined and classified into two groups: those who were treated with GTN before PCI (GTN group) and those who were not (non-GTN group). The incidence of major adverse cardiovascular events (MACE), which consist of all-cause mortality, non-fatal myocardial infarction, stroke and rehospitalisation for heart failure at 1 year, was compared between the two groups.
    Results: This study identified 289 patients with ACS who used GTN preceding PCI. Pre-PCI systolic blood pressure was significantly lower in the GTN group than in the non-GTN group (median (IQR); 132.0 (110.0-143.5) mm Hg vs 134.0 (112.0-157.0) mm Hg, respectively, p=0.03). Multivariate Cox regression analysis indicated that GTN use preceding PCI showed an independent association with the incidence of MACE (HR 1.57; 95% CI 1.09-2.28; p=0.016). Overall, the incidence of MACE 1 year after PCI for ACS was significantly higher in the GTN group than in the non-GTN group (log-rank test, p=0.024); however, this trend was consistently found in elderly patients aged ≥75 years (p=0.002) but not in non-elderly patients aged <75 years (p=0.773).
    Conclusions: GTN use preceding PCI for ACS is associated with lower blood pressure and adverse clinical outcomes in elderly patients.
    MeSH term(s) Aged ; Humans ; Middle Aged ; Acute Coronary Syndrome/diagnosis ; Acute Coronary Syndrome/therapy ; Nitroglycerin/adverse effects ; Percutaneous Coronary Intervention/adverse effects ; Treatment Outcome ; Myocardial Infarction/epidemiology
    Chemical Substances Nitroglycerin (G59M7S0WS3)
    Language English
    Publishing date 2024-01-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2747269-3
    ISSN 2053-3624
    ISSN 2053-3624
    DOI 10.1136/openhrt-2023-002494
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  9. Article ; Online: Herbal dietary supplement: continuing to explore cardiovascular protection.

    Tsuruda, Toshihiro

    Cardiovascular research

    2010  Volume 88, Issue 3, Page(s) 387–388

    MeSH term(s) ATP Binding Cassette Transporter 1 ; ATP-Binding Cassette Transporters/metabolism ; Atherosclerosis/metabolism ; Atherosclerosis/pathology ; Atherosclerosis/prevention & control ; Cardiovascular Diseases/metabolism ; Cardiovascular Diseases/pathology ; Cardiovascular Diseases/prevention & control ; Dietary Supplements ; Foam Cells/metabolism ; Foam Cells/pathology ; Heme Oxygenase-1/metabolism ; Humans ; Lipid Metabolism ; Plant Extracts/therapeutic use ; Plant Preparations/therapeutic use ; Scavenger Receptors, Class A/metabolism
    Chemical Substances ATP Binding Cassette Transporter 1 ; Plant Extracts ; Plant Preparations ; Scavenger Receptors, Class A ; Ginkgo biloba extract (19FUJ2C58T) ; Heme Oxygenase-1 (EC 1.14.14.18)
    Language English
    Publishing date 2010-12-01
    Publishing country England
    Document type Editorial ; Comment
    ZDB-ID 80340-6
    ISSN 1755-3245 ; 0008-6363
    ISSN (online) 1755-3245
    ISSN 0008-6363
    DOI 10.1093/cvr/cvq320
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  10. Article ; Online: Adrenomedullin: Continuing to explore cardioprotection.

    Tsuruda, Toshihiro / Kato, Johji / Kuwasako, Kenji / Kitamura, Kazuo

    Peptides

    2018  Volume 111, Page(s) 47–54

    Abstract: Adrenomedullin (AM), a peptide isolated from an extract of human pheochromocytoma, comprises 52 amino acids with an intramolecular disulfide bond and amidation at the carboxy-terminus. AM is present in various tissues and organs in rodents and humans, ... ...

    Abstract Adrenomedullin (AM), a peptide isolated from an extract of human pheochromocytoma, comprises 52 amino acids with an intramolecular disulfide bond and amidation at the carboxy-terminus. AM is present in various tissues and organs in rodents and humans, including the heart. The peptide concentration increases with cardiac hypertrophy, acute myocardial infarction, and overt heart failure in the plasma and the myocardium. The principal function of AM in the cardiovascular system is the regulation of the vascular tone by vasodilation and natriuresis via cyclic adenosine monophosphate-dependent or -independent mechanism. In addition, AM may possess unique properties that inhibit aldosterone secretion, oxidative stress, apoptosis, and stimulation of angiogenesis, resulting in the protection of the structure and function of the heart. The AM receptor comprises a complex between calcitonin receptor-like receptor (CLR) and receptor activity-modifying protein (RAMP) 2 or 3, and the AM-CLR/RAMP2 system is essential for heart development during embryogenesis. Small-scale clinical trials have proven the efficacy and safety of recombinant AM peptide therapy for heart failure. Gene delivery and a modified AM peptide that prolongs the half-life of the native peptide could be an innovative method to improve the efficacy and benefit of AM in clinical settings. In this review, we focus on the pathophysiological roles of AM and its receptor system in the heart and describe the advances in AM and proAM-derived peptides as diagnostic biomarkers as well as the therapeutic application of AM and modified AM for cardioprotection.
    MeSH term(s) Adrenomedullin/metabolism ; Animals ; Calcitonin Receptor-Like Protein/metabolism ; Cardiomegaly/metabolism ; Heart Failure/metabolism ; Humans ; Receptor Activity-Modifying Protein 2/metabolism ; Receptor Activity-Modifying Protein 3/metabolism
    Chemical Substances Calcitonin Receptor-Like Protein ; Receptor Activity-Modifying Protein 2 ; Receptor Activity-Modifying Protein 3 ; Adrenomedullin (148498-78-6)
    Language English
    Publishing date 2018-03-22
    Publishing country United States
    Document type Journal Article ; Review
    ZDB-ID 769028-9
    ISSN 1873-5169 ; 0196-9781
    ISSN (online) 1873-5169
    ISSN 0196-9781
    DOI 10.1016/j.peptides.2018.03.012
    Database MEDical Literature Analysis and Retrieval System OnLINE

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