43 results match your criteria: "Graduate School of Biomedical and Sciences[Affiliation]"

Serum uric acid is independently associated with impaired nitroglycerine-induced vasodilation of the brachial artery in women.

Hypertens Res

November 2024

Department of Regenerative Medicine, Division of Radiation Medical Science, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.

Experimental and clinical studies have suggested atherosclerotic effects of uric acid (UA) on vascular smooth muscle cells (VSMCs). Nitroglycerine-induced vasodilation (NID), a control test for flow-mediated vasodilation, can be used as a possible marker of VSMC dysfunction. However, there is little information on the association between UA and NID.

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Upstroke time is a more useful marker of atherosclerosis than percentage of mean arterial pressure for detecting coronary artery disease in subjects with a normal ankle-brachial index.

Hypertens Res

August 2024

Department of Regenerative Medicine, Division of Radiation Medical Science, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.

Upstroke time (UT) and percentage of mean arterial pressure (%MAP) at the ankle have been shown to serve as atherosclerotic markers. The purpose of this study was to directly compare the diagnostic accuracy of UT with that of %MAP for clinical coronary artery disease (CAD) in subjects with a normal ankle-brachial index (ABI) in both legs. We measured UT and %MAP in 1953 subjects with a normal ABI.

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Background: In patients with medial knee osteoarthritis (OA), medial meniscus extrusion during gait is aggravated by mechanical stress, such as knee adduction moment (KAM). Conversely, the decrease in the range of knee rotation during stance phase is also one of the important issues in early knee OA, whereas the correlation between medial meniscus extrusion and knee rotation during gait are unclear.

Research Question: To investigate the correlation between increase in medial meniscus extrusion and range of knee rotation during gait in patients with early- and late-stage of knee OA.

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Seasonal variations in endothelium-dependent flow-mediated vasodilation and endothelium-independent nitroglycerine-induced vasodilation.

Hypertens Res

April 2024

Department of Regenerative Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, Japan.

Cardiovascular mortality has been shown to vary seasonally. However, it has not been determined whether vascular function is affected by the season. The purpose of this study was to investigate the associations of vascular function with season and outdoor temperature.

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Percentage of mean arterial pressure as a marker of atherosclerosis for detecting patients with coronary artery disease.

Hypertens Res

February 2024

Department of Regenerative Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, Japan.

The percentage of mean arterial pressure (%MAP) is the height of the mean arterial waveform divided by the peak amplitude of the waveform of pulse volume recording. The purpose of this study was to determine whether the cutoff value of 45% for %MAP at the ankle, which is recommended for the diagnosis of lower extremity artery disease, in combination with ankle-brachial index (ABI) is useful for detecting patients with clinical coronary artery disease (CAD) and investigate the optimal cutoff value of %MAP to diagnose patients with CAD. We measured ABI and %MAP in 2213 subjects (mean age: 61.

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Article Synopsis
  • A study was conducted on 533 patients treated with immune checkpoint inhibitors (ICIs) to identify predictive factors of immune-related adverse events (irAEs) and their relationship with treatment effects.
  • Findings showed that 27% of patients experienced irAEs, with liver injury being the most common adverse event; certain treatments and baseline eosinophil counts were linked to a higher risk of severe liver injury.
  • Interestingly, patients who experienced irAEs had better disease control and overall survival rates, suggesting a potential correlation between the occurrence of irAEs and treatment effectiveness.
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The prevalence of cardiovascular disease is higher in patients with bilateral low ankle-brachial index than in patients with unilateral low ankle-brachial index.

Atherosclerosis

November 2022

Department of Regenerative Medicine, Division of Radiation Medical Science, Research Institute for Radiation Biology and Medicine, Hiroshima University, 1-2-3, Kasumi, Minami-ku, Hiroshima, Japan; Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, 1-2-3, Kasumi, Minami-ku, Hiroshima, Japan. Electronic address:

Background And Aims: Ankle-brachial index (ABI) has been used as a vascular marker of atherosclerosis for cardiovascular risk assessment. However, it is unclear whether there is a difference in cardiovascular risk between patients with low ABI (<1.00) in one leg (unilateral low ABI) and patients with low ABIs in both legs (bilateral low ABI).

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New special approach for shoulder stability after Malawer type IVB shoulder girdle resection: A case report.

Int J Surg Case Rep

June 2022

Department of Orthopaedic Surgery, Hiroshima University, Graduate School of Biomedical and Health Sciences, Hiroshima, Japan. Electronic address:

Introduction And Importance: Scapular prostheses are useful in shoulder stability after shoulder girdle resection for malignant bone tumors; however, they are difficult to obtain in Japan. Therefore, other methods must be considered, depending on the extent of resection. We report a case in which a clavicle-locking plate, Nesplon tape, and a proximal humeral prosthesis were used to ensure shoulder stability and preserve stable upper limb function.

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Isolated diastolic hypertension is not associated with endothelial dysfunction.

Hypertens Res

April 2022

Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan.

Hypertension is associated with an impairment of endothelial function. However, it is unclear whether isolated diastolic hypertension is associated with endothelial dysfunction. The purpose of this study was to investigate the association of endothelial function with isolated diastolic hypertension diagnosed by using two major hypertension guidelines: systolic blood pressure (BP) < 130 mmHg and diastolic BP ≥ 80 mmHg according to the 2017 American College of Cardiology/American Heart Association (ACC/AHA) hypertension guideline and systolic BP < 140 mmHg and diastolic BP ≥ 90 mmHg according to the 2018 European Society of Cardiology/European Society of Hypertension (ESC/ESH) hypertension guideline.

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Serum Potassium Levels of 4.5 to Less Than 5.0 mmol/L Are Associated with Better Vascular Function.

J Atheroscler Thromb

November 2022

Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University.

Aim: An experimental study showed that potassium inhibits the formation of reactive oxygen species by vascular cells. The purpose of this study was to investigate the association between serum potassium levels and vascular function.

Methods: We measured flow-mediated vasodilation (FMD) as an index of endothelial function in 3045 subjects (1964 men; mean age, 62.

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Upstroke time as a marker of atherosclerosis in patients with diabetes mellitus who have a normal ankle-brachial index.

J Diabetes Complications

November 2021

Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan. Electronic address:

We measured upstroke time in 509 patients with diabetes who had a normal ankle-brachial index (ABI) (1.00 ≤ ABI ≤ 1.40) (443 men and 66 women; mean age: 67.

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Bach1 plays an important role in angiogenesis through regulation of oxidative stress.

Microvasc Res

March 2021

Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan; Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan. Electronic address:

Bach1 is a known transcriptional repressor of the heme oxygenase-1 (HO-1) gene. The purpose of this study was to determine whether angiogenesis is accelerated by genetic ablation of Bach1 in a mouse ischemic hindlimb model. Hindlimb ischemia was surgically induced in wild-type (WT) mice, Bach1-deficient (Bach1) mice, apolipoprotein E-deficient (ApoE) mice, and Bach1/ApoE double-knockout (Bach1/ApoE) mice.

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Background Upstroke time is the transit time from the nadir to peak of the waveform of pulse volume recording. The purpose of this study was to determine whether upstroke time at the ankle is a useful vascular marker for detecting patients with advanced atherosclerosis in combination with ankle-brachial index (ABI). Methods and Results We measured upstroke time and ABI in 2313 subjects (mean age, 61.

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This study aimed to explore the competencies of health care practitioners who promote shared decision-making (SDM)-based care for women facing an unplanned pregnancy in Japan. We conducted semistructured interviews with 12 care providers who are pioneers in care for women facing an unplanned pregnancy and adopted a modified grounded theory approach for data analysis. A three-step model for shared decision making in practice (team talk, option talk, and decision talk) was used as a reference.

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Volume Elastic Modulus, Vascular Function, and Vascular Structure in Patients with Cardiovascular Risk Factors.

J Atheroscler Thromb

September 2021

Department of Cardiovascular Regeneration and Medicine, Research Institute for Radiation Biology and Medicine, Hiroshima University.

Aims: Volume elastic modulus (V), an index of arterial elasticity, and arterial diameter of the brachial artery can be automatically measured by a newly developed oscillometric device. We investigated the associations of V with flow-mediated vasodilation (FMD), an index of endothelium-dependent vasodilation, nitroglycerine-induced vasodilation (NID), an index of endothelium-independent vasodilation, and intima-media thickness (IMT) of the brachial artery and association of oscillometrically measured brachial artery diameter with ultrasonographically measured brachial artery diameter in patients with cardiovascular risk factors.

Methods: Oscillometric measurements of V and brachial artery diameter and ultrasound measurements of brachial artery diameter, FMD, NID, and IMT of the brachial artery were performed in 50 patients with cardiovascular risk factors.

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The percentage of people aged 80 years or older in Japan has been increasing. The purpose of this study was to investigate the association between vascular functions and aging in the elderly population and to clarify the characteristics of vascular functions in subjects aged 80 years or older. We measured flow-mediated vasodilation (FMD), nitroglycerine-induced vasodilation (NID), and brachial-ankle pulse wave velocity (baPWV) in 737 subjects aged 60 years or older who visited the outpatient clinic at Hiroshima University Hospital.

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The usefulness of brachial-ankle pulse wave velocity (baPWV), an index of arterial stiffness, is not fully known for the management of treated hypertensive patients with a history of coronary artery disease (CAD) who have blood pressure less than 130/80 mmHg, a recommended blood pressure target in the updated major hypertension guidelines. We analyzed data for 447 treated hypertensive patients with CAD enrolled in FMD-J Study A for assessment of the predictive value of baPWV for future cardiovascular events. The primary outcome was a composite of coronary events, stroke, heart failure, and sudden death.

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Biallelic mutation of induces middle age-onset spinocerebellar ataxia.

Neurol Genet

February 2020

Department of Epidemiology (Y.M., H. Morino, K.K., Y.K., Y.T., R.O., H.K.), Research Institute for Radiation Biology and Medicine, Hiroshima University; Japan Society for the Promotion of Science (Y.M.), Tokyo; the Department of Clinical Neuroscience (R.M.), Institute for Biomedical Science, Tokushima University; the Department of Neurology (T.K.), National Hospital Organization Kure Medical Center and Chugoku Cancer Center; the Department of Periodontal Medicine (N.M.), Graduate School of Biomedical and Sciences, Hiroshima University; the Department of Plastic Surgery (K.Y.), Hiroshima University Hospital; the Division of Genomics Research (N.S.), Life Science Research Center, Gifu University; the Department of Clinical Neuroscience and Therapeutics (H. Maruyama), Hiroshima University, Japan.

Objective: To determine the genetic underpinnings of slowly progressive spinocerebellar ataxia, autosomal recessive (SCAR), we performed exome analysis and examined the relationship between clinical severity and functional change induced by the mutation.

Methods: Homozygosity fingerprinting and exome sequencing were performed to identify causative mutations in 2 consanguineous families. We assessed the expression of D-bifunctional protein (DBP) and the amount of dimerized DBP in fibroblasts by immunoblot and quantitative reverse transcription PCR.

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Background Diagnostic criteria of flow-mediated vasodilation (FMD), an index of endothelial function, and nitroglycerin-induced vasodilation (NID), an index of vascular smooth muscle function, of the brachial artery have not been established. The purpose of this study was to propose diagnostic criteria of FMD and NID for normal endothelial function and normal vascular smooth muscle function. Methods and Results We investigated the cutoff values of FMD and NID in subjects with (risk group) and those without cardiovascular risk factors or cardiovascular diseases (no-risk group) in 7277 Japanese subjects (mean age 51.

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The aim of the study was to evaluate the oral environment and the taste function of Japanese HIV-infected patients treated with antiretroviral therapy. Their median age of 73 patients taking anti-HIV drugs was 46 years. The median period of taking anti-HIV drugs was 30 months.

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Background: Differences between the effects of calcium channel blockers (CCBs) and other antihypertensive drugs on vascular function have not been fully investigated. The purpose of this study was to determine the confounding effect of CCBs on vascular function tests.

Methods: We measured flow-mediated vasodilation (FMD), nitroglycerine-induced vasodilation (NID), and brachial-ankle pulse wave velocity (baPWV) in 1,134 subjects who underwent health-screening examinations or who visited the outpatient clinic at Hiroshima University Hospital.

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Hypertension is associated with vascular failure, such as increased arterial stiffness, endothelial dysfunction, and vascular smooth muscle dysfunction. The purpose of this study was to investigate the relationship between out-of-office blood pressure and vascular function in patients receiving antihypertensive drugs. We assessed out-of-office blood pressure, including daytime and night-time blood pressure, by home blood pressure monitoring and performed vascular function tests, including brachial-ankle pulse wave velocity (baPWV), flow-mediated vasodilation (FMD), and nitroglycerine-induced vasodilation (NID), in 169 patients receiving antihypertensive drugs, of whom 86 (50.

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The induced RNA-binding protein, HuR, targets 3'-UTR region of IL-6 mRNA and enhances its stabilization in periodontitis.

Clin Exp Immunol

June 2018

Department of Periodontal Medicine, Graduate School of Biomedical and Sciences, Hiroshima University, Hiroshima, Japan.

RNA-binding proteins (RBPs) regulate mRNA stability by binding to the 3'-untranslated region (UTR) region of mRNA. Human antigen-R (HuR), one of the RBPs, is involved in the progression of diseases, such as rheumatoid arthritis, diabetes mellitus and some inflammatory diseases. Interleukin (IL)-6 is a major inflammatory cytokine regulated by HuR binding to mRNA.

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Treatment of Radiation Injury.

Adv Wound Care (New Rochelle)

January 2014

Division of Plastic and Reconstructive Surgery, Department of Developmental and Reconstructive Medicine, Graduate School of Biomedical and Sciences, Nagasaki University, Nagasaki, Japan .

Radiation exposure as a result of radiation treatment, accident, or terrorism may cause serious problems such as deficiency due to necrosis or loss of function, fibrosis, or intractable ulcers in the tissues and organs. When the skin, bone, oral mucous membrane, guts, or salivary glands are damaged by ionizing radiation, the management and treatment are very lengthy and difficult. In severe and irreversible injuries, surgery remains the mainstay of treatment.

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Basic Fibroblast Growth Factor in Scarless Wound Healing.

Adv Wound Care (New Rochelle)

March 2013

Division of Plastic and Reconstructive Surgery, Department of Developmental and Reconstructive Medicine, Nagasaki University , Graduate School of Biomedical and Sciences, Nagasaki, Japan .

Significance: The benefit and role of basic fibroblast growth factor (bFGF) in scarless wound healing in clinical application and basic mechanism are discussed. bFGF is a glycoprotein which is widely used in treating wounds and ulcers. bFGF is easily applicable to any type of wound and leads to a better outcome in color, texture, and firmness.

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