475 results match your criteria: "Center for Translational and Clinical Research[Affiliation]"

Article Synopsis
  • This study investigates how liver fibrosis negatively affects liver natural killer (NK) cells, which are important for fighting tumors, and the role of interleukin-33 (IL-33) in this process.
  • The research reveals that higher levels of liver fibrosis correlate with lower survival rates and a higher chance of cancer recurrence after surgery, as indicated by the Fibrosis-4 (FIB-4) index.
  • The findings suggest that targeting IL-33 and enhancing NK cell function could be potential treatment strategies to improve the liver's immune response against hepatocellular carcinoma (HCC) in patients with liver fibrosis.
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Article Synopsis
  • The JPLT3-S study examined the effectiveness of cisplatin (CDDP) monotherapy for young children with standard-risk hepatoblastoma, aiming to reduce treatment toxicity compared to previous studies.
  • A total of 38 patients under 3 years old participated, achieving a remarkable 3-year progression-free survival rate of 93.9% and a 100% overall survival rate.
  • Despite the positive outcomes, nearly half of the patients experienced late-onset ototoxicity, highlighting a potential side effect of CDDP treatment.
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The Influence of BMP6 on Serotonin and Glucose Metabolism.

Int J Mol Sci

July 2024

Laboratory for Mineralized Tissues, Center for Translational and Clinical Research, School of Medicine, University of Zagreb, 10000 Zagreb, Croatia.

Article Synopsis
  • - The study investigates how bone morphogenetic protein 6 (BMP6) and serotonin (5HT) interact to regulate glucose metabolism, focusing on pancreatic β-cells using rat insulinoma cells and mouse models.
  • - Findings indicate that BMP6 and 5HT have opposite effects on insulin secretion, and while BMP6 deletion in mice doesn't lead to diabetes, it causes subtle differences in insulin tolerance.
  • - Ultimately, the research concludes that BMP6 does not have a direct impact on glucose metabolism, but its absence may lead to gradual changes in glucose and serotonin metabolism over time, especially as age progresses.
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MicroRNA-26a deficiency attenuates the severity of frozen shoulder in a mouse immobilization model.

J Orthop Res

December 2024

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

The main pathogenesis of the frozen shoulder is thought to be the inflammation of the intra-articular synovium and subsequent fibrosis of the shoulder joint capsule. However, the molecular pathogenesis of the frozen shoulder is still unknown. A class of noncoding RNAs, microRNAs contribute to various diseases including musculoskeletal diseases.

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Development of a novel approach for restoration of the meniscus using silk-elastin in a rabbit meniscus injury model.

BMC Musculoskelet Disord

July 2024

Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8553, Japan.

Background: Limited healing potential of the meniscus remains a burden for the successful repair of meniscus injuries in the orthopaedic fields. Silk-elastin (SE) is a novel recombinant protein with favorable properties for wound healing. This proof-of-concept study aimed to investigate the therapeutic effect of silk-elastin in a rabbit meniscal defect model.

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New device for assessment of endothelial function: plethysmographic flow-mediated vasodilation (pFMD).

Hypertens Res

September 2024

Department of Regenerative Medicine, Division of Radiation Medical Science, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan.

Measurement of flow-mediated vasodilation (FMD) in the brachial artery by using ultrasound is a well-established technique for evaluating endothelial function. To make the measurement quicker and simpler than the measurements of conventional ultrasound FMD (uFMD), we have developed a new noninvasive method, plethysmographic FMD (pFMD), to assess vascular response to reactive hyperemia in the brachial artery. The aim of this study was to determine the accuracy of measurement of pFMD in comparison to that of measurement of conventional uFMD.

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Article Synopsis
  • Skeletal muscle injuries (SMIs) often heal with scar tissue, which can hinder muscle function and increase the risk of re-injury, but effective treatments are still under research.
  • The study tests the hypothesis that injecting a novel protein, Silk Elastin® (SE), at the site of an SMI can help reduce scarring and promote muscle healing.
  • Results indicate that SE reduces scar formation and strengthens muscle regeneration compared to standard treatments, suggesting it could be a promising therapeutic option for SMIs.
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Two-tiered aerobic exercise program in hypertension.

Hypertens Res

September 2024

Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan.

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Low-intensity pulsed ultrasound improves symptoms in patients with Buerger disease: a double-blinded, randomized, and placebo-controlled study.

Sci Rep

June 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, 734-8551, Japan.

Article Synopsis
  • The study investigates the effects of low-intensity pulsed ultrasound (LIPUS) on patients with Buerger disease, a type of peripheral arterial disease.
  • A total of 12 patients received LIPUS treatment for 24 weeks while another 12 served as a control group without treatment.
  • Results showed that LIPUS significantly reduced pain intensity and increased skin perfusion pressure in treated patients, with no severe adverse effects reported, suggesting it is a safe and effective noninvasive option for symptom improvement.
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Osteophyte Cartilage as a Potential Source for Minced Cartilage Implantation: A Novel Approach for Articular Cartilage Repair in Osteoarthritis.

Int J Mol Sci

May 2024

Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima City 734-8551, Japan.

Osteoarthritis (OA) is a common joint disorder characterized by cartilage degeneration, often leading to pain and functional impairment. Minced cartilage implantation (MCI) has emerged as a promising one-step alternative for large cartilage defects. However, the source of chondrocytes for MCI remains a challenge, particularly in advanced OA, as normal cartilage is scarce.

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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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Impact of a Liver Immune Status Index among Living Liver Transplant Recipients with Hepatocellular Carcinoma.

JMA J

April 2024

Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences Hiroshima University, Hiroshima University, Hiroshima, Japan.

Article Synopsis
  • Hepatocellular carcinoma (HCC) is a serious global health issue, ranking as the fifth most common cancer and causing significant cancer-related deaths; liver transplantation could be a cure, but recurrence after the procedure is a major concern.
  • This study analyzed 113 patients who received living-donor liver transplants for HCC from 2001 to 2020, focusing on a new metric called liver immune status index (LISI), which may influence recovery and prognosis by assessing donor liver characteristics.
  • Results show that higher LISI is associated with lower recurrence rates and better overall survival, suggesting that LISI could serve as a helpful noninvasive marker to predict early recurrence risk and tap into the liver's natural immune response against
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Effects of BNT162b2 mRNA Covid-19 vaccine on vascular function.

PLoS One

April 2024

Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, Japan.

Article Synopsis
  • - The study assessed the BNT162b2 vaccine's impact on vascular function in 23 medical staff at Hiroshima University Hospital, focusing on endothelial function (measured by flow-mediated vasodilation, FMD) and vascular smooth muscle function (measured by nitroglycerine-induced vasodilation, NID).
  • - Results showed that FMD declined significantly two weeks after the second vaccine dose, but improved at six months, returning to baseline levels; there was no significant change in NID across the study periods.
  • - Overall, the findings suggest that while the BNT162b2 vaccine temporarily affected endothelial function, it did not influence vascular smooth muscle function and the endothelial function normalized within six months.
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Microribonucleic acids (miRNAs) comprising miR-23a/b clusters, specifically miR-23a and miR-27a, are recognized for their divergent roles in myelination within the central nervous system. However, cluster-specific miRNA functions remain controversial as miRNAs within the same cluster have been suggested to function complementarily. This study aims to clarify the role of miR-23a/b clusters in myelination using mice with a miR-23a/b cluster deletion (KO mice), specifically in myelin expressing proteolipid protein (PLP).

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A Body Shape Index as a Simple Anthropometric Marker of Abdominal Obesity and Risk of Cardiovascular Events.

J Clin Endocrinol Metab

November 2024

Division of Regeneration and Medicine, Medical Center for Translational and Clinical Research, Hiroshima University Hospital, Hiroshima, 734-0037, Japan.

Context: A Body Shape Index (ABSI) has been reported to have associations with cardiovascular risk factors. However, there is no information on the association between ABSI and incidence of cardiovascular events.

Methods: We investigated the associations between ABSI and first major cardiovascular events (death from cardiovascular disease, nonfatal acute coronary syndrome, and nonfatal stroke) in 1857 subjects from the database of Flow-Mediated Dilation Japan registry and from Hiroshima University Vascular Function registry.

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Preventive effects of SGLT2 inhibitors on incident hypertension in patients with diabetes who do not have hypertension.

Hypertens Res

July 2024

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

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Introduction: Portal hypertension (PH) drives the progression of liver cirrhosis to decompensation and death. Hepatic venous pressure gradient (HVPG) measurement is the standard of PH quantification, and HVPG≥10 mmHg defines clinically significant PH (CSPH). We performed proteomics-based serum profiling to search for a proteomic signature of CSPH in patients with compensated advanced chronic liver disease (cACLD).

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First tarsometatarsal joint mobility in hallux valgus during gait: A synchronized ultrasound and three-dimensional motion capture analysis.

J Med Ultrason (2001)

April 2024

Department of Sports Rehabilitation, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-Ku, Hiroshima, 734-8553, Japan.

Article Synopsis
  • This study aimed to measure the vertical movement between the first metatarsal and medial cuneiform bones during walking in young adults with different levels of hallux valgus.
  • It included 34 participants divided into three groups based on the severity of hallux valgus and used ultrasound alongside motion analysis for assessment.
  • The results showed that as the severity of hallux valgus increased, the medial cuneiform shifted more downward during specific phases of walking, indicating greater joint mobility and highlighting the importance of early prevention for this condition.
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Is uric acid a causal risk factor of arterial stiffness in patients with hypertension?

Hypertens Res

June 2024

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

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Objective: Preoperative neutrophil-to-lymphocyte ratio (NLR) is a well-known prognostic indicator in various malignancies; however, the impact of postoperative NLR on living donor liver transplant (LDLT) recipients is unknown. Immunotherapy with donor liver-derived activated natural killer (NK) cells may improve postoperative NLR by coactivating immune cells or suppressing activated neutrophils. This study aims to clarify the clinical significance of postoperative NLR in recipients after LDLT with HCC and assess whether immunotherapy improves postoperative NLR.

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Objective: We investigated the interrelationship between hyperglycemia and hypertension on cardiovascular mortality in the middle-aged and elderly people.

Methods: In this retrospective cohort study that used data from the Hiroshima Study on Glucose Metabolism and Cardiovascular Diseases, we included 16,564 participants without cardiovascular disease (mean age: 65.8 years; 6179 normoglycemic people, 3017 people with newly diagnosed type 2 diabetes, and 7368 people with prediabetes per the 75-g oral glucose tolerance test).

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Atherosclerosis Deteriorates Liver Ischemia/Reperfusion Injury Via Interferon Regulatory Factor-1 Overexpression in a Murine Model.

Transplant Proc

April 2024

Department of Gastroenterological and Transplant Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Minami-ku, Hiroshima, Japan.

Background: Abdominal aortic calcification (AAC) is associated with cardiovascular-related mortality, along with an elevated risk of coronary, cerebrovascular, and cardiovascular events. Notably, AAC is strongly associated with poor overall and recurrence free survival posthepatectomy for hepatocellular carcinoma. Despite the acknowledged significance of atherosclerosis in systemic inflammation, its response to ischemia/reperfusion injury (IRI) remains poorly elucidated.

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Background: Non-inferiority of trifluridine/tipiracil (FTD/TPI) plus bevacizumab (BEV) to irinotecan/fluoropyrimidine plus BEV in metastatic colorectal cancer was investigated in the phase III TRUSTY study, and we conducted a phase II study of FOLFIRI (5-FU+leucovorin+irinotecan) plus zib-aflibercept (AFL) after FTD/TPI plus BEV. However, the TRUSTY study failed during the recruitment of our patients.

Objective: We present the findings of a phase II study on the efficacy of FOLFIRI plus zib-aflibercept (AFL) after FTD/TPI plus BEV, including clinical results with plasma biomarker analyses.

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Article Synopsis
  • The TACTICS-L trial studied the combination of transarterial chemoembolization (TACE) and lenvatinib (LEN) for treating unresectable intermediate-stage hepatocellular carcinoma (HCC), aiming to improve outcomes since recurrence is common after TACE alone.
  • Patients with specific criteria were given LEN before and after TACE, with primary results showing a median progression-free survival of 28.0 months and high overall response rates (79% with 53% complete response 4 weeks post-TACE).
  • The trial included 62 participants, mostly men aged around 72, and results indicated that combining LEN with TACE could be beneficial across different patient subgroups.
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Article Synopsis
  • Natural killer (NK) cells are crucial for immune defense and may influence liver cancer recurrence and infections following liver transplants, but their activity related to donor age needs further study.
  • In a study involving 19 liver transplant recipients, liver mononuclear cells were analyzed after stimulating NK cells with interleukin 2, revealing changes in NK cell proportions and activity.
  • Results showed no link between donor age and NK cell quantity, but an inverse correlation existed between donor age and certain NK cell activity markers, suggesting age may impact NK cell function in liver transplants.
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