39 results match your criteria: "Hirosaki University Graduate School of Health Science[Affiliation]"

The Women's Health Care Committee was established in 2010 to improve the health of women. In the current academic year, this committee established seven subcommittees aimed at understanding diseases related to various age groups of women, including adolescence, sexual maturity, and menopause, and promoting research to improve the quality of life. Additionally, socially significant research has focused on infections, particularly resistant bacteria.

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The concentration of the radioactive cesium (134Cs and 137Cs) in soils and in atmospheric fallouts has been measured at the Koriyama campus, Nihon University, after the Fukushima Dai-ichi Nuclear Power Plant accident for 13 y, from October 2011 till September 2023 and now ongoing. The concentration of them decreased very rapidly due to decontamination activities and weathering effects, with an environmental half-life of 1.21 and 2.

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Characteristics of tritium, stable isotopes and chemical components in monthly precipitation at Hiroshima, Japan.

Radiat Prot Dosimetry

November 2024

Institute of Radiation Emergency Medicine, Hirosaki University, 66-1 Hon-cho, Hirosaki, Aomori 036-8564, Japan.

Article Synopsis
  • The article investigates tritium levels in monthly rainfall in Hiroshima City for 2021, showing fluctuations between 0.16 to 0.78 Bq L-1.
  • It also examines stable hydrogen and oxygen isotopes and ionic species to better understand precipitation characteristics and compares these trends with historical data from other areas in Japan.
  • The findings indicate that while overall precipitation characteristics are similar to other regions, Hiroshima's tritium levels differ from expected patterns, suggesting potential influences from continental sources.
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Objectives: To understand the actual situation and needs of young researchers and to provide reference for the management of Young Researchers Association (YRA) and the Japanese Society for Hygiene activities in the future.

Methods: An Internet survey was conducted on 67 members registered in YRA of the Japanese Society for Hygiene. The questions included those on basic information, research content and impressions about the activities of the society.

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Background/aim: The pathogenesis of cardio-vascular disease (CVD) in hemodialysis (HD) patients involves inflammation and oxidative stress. High-sensitivity C-reactive protein (hs-CRP) is an established inflammatory biomarker associated with CVD. Several studies have suggested that the inflammatory biomarker pentraxin-3 (PTX-3) and the oxidative stress-related biomarker soluble lectin-like low-density lipoprotein receptor-1 (sLOX-1) are novel biomarkers for CVD in non-HD populations.

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Article Synopsis
  • TLR7 is crucial for the immune response to viral infections in cells like astrocytes and microglia, but its function in neurons is not fully understood yet.
  • This research examined how resiquimod, a TLR7/8 activator, affects inflammatory chemokine production in SH-SY5Y human neuroblastoma cells, finding that TLR7 is always present in these cells.
  • The study showed that resiquimod boosts CCL2 expression and activates NF-κB, suggesting it could have therapeutic potential for treating viral infections in the central nervous system by stimulating immune responses in neurons.
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This article discusses tritium concentrations in monthly precipitation in part of the Difficult-to-Return Zone in Namie Town during 2012-2021. The tritium concentrations, which were measured with a low background liquid scintillation counter after carrying out an enrichment procedure, fluctuated seasonally from 0.10 ± 0.

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Perfluorooctane sulfonate (PFOS) has been used in a wide variety of industrial and commercial products. The adverse effects of PFOS on the developing brain are becoming of a great concern. However, the molecular mechanisms of PFOS on brain development have not yet been clarified.

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Article Synopsis
  • - A high-fat diet (HFD) negatively impacts the intestinal barrier by disrupting tight junctions and reducing mucin, leading to intestinal damage and inflammation.
  • - The study tested indigo leaf extract (indigo Ex) in mice on HFD to see if it could protect against intestinal damage.
  • - Results showed that indigo Ex improved colon health by increasing crypt length, goblet cells, and production of beneficial cytokines, suggesting it may be a natural remedy for obesity-related intestinal issues.
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Activation and/or modulation of the membrane-associated receptors plays a critical role in brain development. Thyroid hormone (TH) acts on both nuclear receptors (thyroid hormone receptor, TR) and membrane-associated receptors, particularly integrin αvβ3 in neurons and glia. Integrin αvβ3-mediated signal transduction mediates various cellular events during development including morphogenesis, migration, synaptogenesis, and intracellular metabolism.

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Tryptanthrin attenuates TLR3-mediated STAT1 activation in THP-1 cells.

Immunol Res

October 2022

Department of Vascular Biology, Institute of Brain Science, Hirosaki University Graduate School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori, 036-8562, Japan.

Article Synopsis
  • Dysregulated immune responses during viral infections can worsen the disease and lead to poor outcomes, highlighting the importance of pathways like JAK/STAT in immune function.
  • Tryptanthrin, a natural compound, shows potential therapeutic effects, particularly by reducing the activation of a key immune signaling protein, p-STAT1, in macrophages when stimulated by the TLR3 pathway.
  • The study indicates that tryptanthrin specifically inhibits the immune response triggered by poly I:C (TLR3 ligand) without affecting other pathways, suggesting it could help manage excessive macrophage activation during viral infections.
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Article Synopsis
  • * The study found that GBCAs increase astrocyte migration and adhesion through a signaling pathway involving the integrin αvβ3 and its downstream factors like FAK, ERK1/2, and Akt.
  • * Researchers suggest limiting the use of GBCAs to prevent negative effects on brain health, especially during crucial developmental stages.
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Background: Prolonged sleep is a higher stroke risk, but post-stroke prolonged sleep facilitates stroke recovery. No study has explored the relationship between pre- and post-stroke prolonged sleep and their involvement in stroke-related quality of life (QOL).This study aimed to clarify the role of pre- and post-stroke prolonged sleep in QOL and sleep quality during hospitalization.

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Background: A third to half of recurrent stroke occur while on antiplatelet therapy, but no study has explored factors relating to prognosis of recurrent ischemic stroke. This study aimed to clarify the risk factors to determine the clinical outcome of recurrent ischemic stroke.

Methods: A total of 1,333 consecutive acute ischemic stroke patients (first n = 492, recurrent n = 841) were enrolled.

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. [Purpose] Arm swing is seldom considered while designing clinical rehabilitation protocols for hemiplegic patients with upper or lower extremity disabilities, likely due to the unclear role that arm swinging plays in the ability to walk. We, therefore, aimed to investigate the effect of arm swinging on walking abilities.

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Spontaneous platelet aggregation is a trigger for additional development of larger thrombi. Micro-aggregation is observed in 10% of diabetes approximately and blocked by P2Y12 inhibitors, whereas macro-aggregation is associated with overexpression of platelet α-adrenoreceptors and is not blocked by conventional anti-platelet medicines. We examined the incidence of spontaneous platelet macro-aggregation (SPMA) in acute ischemic stroke and analyzed its clinical characteristics.

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Phospholipase C (PLC)-δ1, activated by p122RhoGTPase-activating protein (GAP)/deleted in liver cancer-1 (p122RhoGAP/DLC-1), contributes to the coronary spastic angina (CSA) pathogenesis. The present study aims to further investigate the p122RhoGAP/DLC-1 protein. We examined molecules assisting this protein and identified a scaffold protein-IQ motif-containing GTPase-activating protein 1 (IQGAP1).

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Background: In patients with Alzheimer's disease (AD), cerebral blood flow (CBF) is decreased from the early stages. CBF in AD is currently estimated from Z-scores using statistical analysis. However, the Z-score is not considered the impaired area ratio.

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The present study aimed to evaluate whether the use of a smoothing filter would improve the image quality in pediatric Tc-dimercaptosuccinic acid (Tc-DMSA) scintigraphy. We retrospectively reviewed 31 kidneys in 16 consecutive pediatric patients aged 10 months to 14 years. The administered dose was calculated using a weight-based method.

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Natural background gamma radiation was measured along the main roads in the eastern, western and southern regions of Thailand using a car-borne survey system with a 3-in × 3-in NaI (Tl) scintillation spectrometer. The system was able to quickly survey a large area and obtain outdoor absorbed dose rate in air from a gamma ray pulse height distribution. A total of 19 219 data of the outdoor absorbed dose rate in air were collected.

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Assessment of skin condition is necessary for providing advice regarding skin self-care to patients with breast cancer who have undergone radiation therapy. Acute and chronic phases of radiodermatitis were analyzed in patients using objective assessment tools in the present study. A total of 18 women who received radiation therapy for breast cancer were enrolled in the present study and their skin surface temperature (SST), hydration level of the skin surface (HL), melanin intensity (MI) and erythema intensity (EI) were measured prior to radiation therapy and six months thereafter.

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Radon is the second most important risk factor for lung cancer after tobacco smoking. In Chiang Mai, Thailand, the values of indoor radon activity concentrations are considerably higher than global average values and it is a highest level among East Asian countries. The aim of our study is to identify novel biomarkers for lung cancer risk in high radon areas using a proteomic approach.

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Background: Aggregation of platelets is a trigger for additional development of larger thrombi. This study aimed to identify factors that may affect platelet aggregability and their role in clinical outcomes in acute ischemic stroke.

Methods: Consecutive acute ischemic stroke patients (n = 352) who were transferred within 24 hours after its onset were enrolled.

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Human beings are continuously exposed to ionising radiation originating from natural or artificial sources. Uranium-238 and Thorium-232 found in building materials are important sources of radon and thoron in the indoor environment. The concentration levels of radon, thoron and thoron progeny were measured in mud-walled, metallic or iron sheet-walled and stone-walled modern houses in Kilimambogo region, Kenya for 3 months.

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Background: Adherence to healthy lifestyle factors has been shown to improve outcomes after stroke. This study aimed to identify lifestyle factors about eating habits that may affect the quality of life (QOL) in elderly stroke patients.

Methods: Fifty elderly patients with a first-ever stroke were enrolled.

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