445 results match your criteria: "Jichi Medical University Hospital[Affiliation]"

T-Type Voltage-Gated Calcium Channels: Potential Regulators of Smooth Muscle Contractility.

Int J Mol Sci

November 2024

Division of Clinical Pharmacology, Department of Pharmacology, Jichi Medical University, Shimotsuke 329-0498, Japan.

Article Synopsis
  • - Emerging research suggests that reduced contractility in aortic smooth muscle cells could play a role in the development of aortic dissection, based on detailed studies of familial thoracic aortic conditions.
  • - Unlike the well-studied L-type calcium channels, recent findings indicate that T-type voltage-gated calcium channels may be more closely linked to the impaired contraction in vascular smooth muscle.
  • - The review explores various aspects of T-type calcium channels, including their structure, function, and how their decreased activity may lead to less effective muscle contraction, while also discussing the use of multi-omic techniques in this research.
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Metabolic dysfunction-associated steatohepatitis (MASH), characterized by progressive inflammation and fibrosis, evolves from metabolic dysfunction-associated steatotic liver disease and significantly heightens the risk of cirrhosis and hepatocellular carcinoma. Understanding metabolic pathways that influence MASH progression is crucial for developing targeted therapies. Non-targeted metabolomics offer a comprehensive view of metabolic alterations, enabling identification of novel biomarkers and pathways without preconceived ideas.

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Background/aim: In prostate cancer, robotic total prostatectomy is a popular treatment modality. However, prostate-specific antigen (PSA) recurrence after prostate cancer surgery remains a concern. Salvage radiotherapy is commonly used to treat PSA recurrence, but the recurrence rate after salvage radiotherapy is high, highlighting the need for better predictive markers.

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Introduction: We describe a case in which robot-assisted radical ureterectomy was performed for residual ureteral recurrence in a postoperative patient with renal pelvis cancer.

Case Presentation: A 75-year-old woman underwent laparoscopic radical nephroureterectomy for left renal pelvic cancer at another hospital. During follow-up, a papillary tumor was found in the bladder on cystoscopy, and a continuous tumor was found in the residual ureter on computed tomography.

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Study Design: Prospective multicenter study.

Objectives: Palliative surgery is crucial for maintaining the quality of life (QOL) in patients with spinal metastases. This study aimed to compare the short-term outcomes of QOL after palliative surgery between patients with metastatic spinal tumors at different segments.

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We report the case of a 77-year-old Japanese woman with neuromyelitis optica spectrum disorder, treated with 15 mg of prednisolone daily, who presented with acute septic shock and altered consciousness due to Dolosigranulum pigrum bacteremia. Intravenous extracellular fluids and broad-spectrum antibiotics were administered as an initial treatment. However, the patient died shortly after admission.

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Background: Pulmonary oedema is a feared and difficult to predict complication of severe malaria that can emerge after start of antimalarial treatment. Proinflammatory mediators are thought to play a central role in its pathogenesis.

Methods: An exploratory study was conducted to evaluate the predictive capacity of biomarkers for development of clinical pulmonary oedema in patients with severe falciparum malaria at two hospitals in Bangladesh.

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Article Synopsis
  • Brachytherapy (BT), particularly high dose rate (HDR) BT, has become more complex due to advanced techniques, necessitating significant training for radiotherapy technologists and medical physicists (RTMPs).
  • A survey conducted across 837 radiation treatment facilities in Japan revealed varying working times for HDR procedures and low quality control (QC) implementation rates for BT compared to external beam radiation therapy (EBRT).
  • The findings underscore a need for improved training and education for RTMPs to enhance the quality and safety of BT practices in Japan.
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Objectives: Laboratory experiments have indicated that calcium channel blockers (CCBs) inhibit the entry and replication of influenza A virus in cells. However, no clinical studies have assessed the incidence of influenza among patients receiving CCBs. This study aimed to investigate the association between CCB use and the incidence of influenza among patients with hypertension using administrative claims data in Japan.

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  • - This study investigates a new method for treating peritoneal metastasis (PM) by using AAV vectors to deliver a tumor-suppressing microRNA, miR-29b, to cells in the peritoneum, which is the lining of the abdominal cavity.
  • - The research shows that AAV-DJ serotype effectively boosts miR-29b levels in peritoneal mesothelial cells, leading to reduced tumor cell attachment and decreased fibrosis, especially after a single intraperitoneal injection.
  • - Furthermore, the combination of miR-29b delivery with traditional chemotherapy, like paclitaxel, improves treatment outcomes by inhibiting the growth of established PM from gastric and pancreatic cancers.
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Article Synopsis
  • Many new nurses experience stress due to environmental changes, which can lead to resignations, highlighting the need for strategies to retain them, especially in light of Japan's nursing shortage.
  • A study analyzed the characteristics of 353 newly graduated nurses to identify factors related to early resignation, comparing traits of those who left within a year to those who stayed.
  • Results indicated that high trait anxiety and low nurse orientation are significant predictors of early resignation, suggesting that targeted support could help retain these nurses.
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Background: In a randomized phase II/III trial (JCOG1008), weekly cisplatin (40 mg/m) was non-inferior to 3-weekly cisplatin (100 mg/m) for postoperative high-risk head and neck cancer. We investigated how acute kidney injury (AKI), a major dose-limiting toxicity effect of cisplatin, affects overall survival (OS).

Methods: We analyzed 251 patients from JCOG1008 receiving chemoradiotherapy.

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Lung cancer has a poor prognosis, and further improvements in outcomes are needed. Radiotherapy plays an important role in the treatment of unresectable lung cancer, and there have been recent developments in the field of radiotherapy for the management of lung cancer. However, to date, there have been few reviews on the improvement in treatment outcomes associated with high precision radiotherapy for lung cancer.

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A 69-year-old man was admitted to our hospital because of a sudden gait disturbance. Based on the neurological examination performed upon admission, the patient exhibited ataxic movement in his right lower limb and body lateropulsion toward the right side. Magnetic resonance imaging revealed a lower lateral medullary infarction limited to the lateral surface.

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Radiotherapy is one of the definitive treatments for head and neck squamous cell carcinoma, especially early-stage glottic squamous cell carcinoma. Although there are several studies on the initiation weekday of cancer treatment, there are very few studies in the radiotherapy field. Thus, the present study investigated whether the initiation weekday of radiotherapy affects the local control rate for stage 1 glottic squamous cell carcinoma.

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Despite advances in systemic chemotherapy, patients with gastric cancer (GC) and peritoneal metastases (PMs) continue to have poor prognoses. Intraperitoneal (IP) administration of Paclitaxel (PTX) combined with systemic chemotherapy shows promise in treating PMs from GC. However, methods of drug administration need to be optimized to maximize efficacy.

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Well-differentiated neuroendocrine tumor (NET) and poorly differentiated neuroendocrine carcinoma (NEC) are distinct entities with different biological behavior. However, difficult cases showing equivocal morphology have been reported in some organs. Herein, we report a case of primary hepatic neuroendocrine neoplasm (NEN) with ambiguous histopathological features admixed with conventional hepatocellular carcinoma (HCC).

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Article Synopsis
  • A study evaluated the real-world effectiveness and safety of second-line nivolumab monotherapy in 184 patients with advanced esophageal cancer, revealing a 23% response rate and 14% incidence of serious adverse events without treatment-related deaths.
  • * The median progression-free survival was 5.1 months and overall survival was 14 months, with better outcomes linked to favorable prognostic factors like good performance status and low C-reactive protein levels.
  • * The results suggest that nivolumab's real-world outcomes align with previous clinical trials, and the effectiveness of third-line chemotherapy after nivo may warrant further investigation.
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  • The study investigated the postoperative outcomes for patients with spinal metastases from prostate cancer, focusing on improvements in their quality of life and other patient-oriented assessments.
  • Conducted across 35 centers, the research assessed 413 patients, with 41 specifically having prostate cancer, and followed them for at least a year following surgery using various evaluation methods.
  • Results showed significant improvements in neurological function, quality of life, and patient motivation post-surgery, indicating that surgical intervention is beneficial for these patients.
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  • Hydroxycarbamide is an antimetabolic drug used to manage myeloproliferative disorders but can lead to side effects such as myelosuppression, skin ulcers, and oral mucositis.
  • A 74-year-old woman developed both esophageal and ileal ulcers following hydroxycarbamide treatment, a rare occurrence not previously documented for this medication.
  • The case suggests that hydroxycarbamide may cause gastrointestinal ulcers, and stopping the medication often leads to quick recovery; thus, new symptoms should prompt consideration of drug-related causes for diagnosis and treatment.
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The development of new treatment strategies to improve the prognosis of mucosal malignant melanoma of the head and neck (MMHN) after carbon ion radiotherapy (CIRT) is essential because of the risk of distant metastases. Therefore, our objective was to evaluate the outcomes of immune checkpoint inhibitor (ICI) treatment to justify its inclusion in the regimen after CIRT. Thirty-four patients who received CIRT as an initial treatment were included in the analysis and stratified into three groups: those who did not receive ICIs (Group A), those who received ICIs after recurrence or metastasis (Group B), and those who received ICIs as adjuvant therapy after CIRT (Group C).

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  • Hypothyroidism is a common late side effect following radiotherapy for head and neck cancer, which the JCOG1008 trial aimed to investigate by analyzing patient data.
  • The trial enrolled 261 patients from 28 institutions between 2012 and 2018 and conducted thyroid function tests to identify factors associated with developing hypothyroidism post-treatment.
  • Results showed that 16.7% of patients developed hypothyroidism within 2 years, with significant factors being the use of weekly cisplatin and lower baseline free thyroxine levels in those undergoing intensity-modulated radiotherapy.
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