6,522 results match your criteria: "Wakayama Medical University[Affiliation]"

Oxidation of thiol groups in membrane proteins inhibits the fertilization ability and motility of sperm by suppressing calcium influx.

Biol Reprod

December 2024

Division of Reproductive Engineering, Center for Animal Resources and Development (CARD), Institute of Resource Development and Analysis, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan.

The redox state of thiol groups derived from cysteine residues in proteins regulates cellular functions. Changes in the redox state of thiol groups in the epididymis are involved in sperm maturation. Furthermore, the redox state of thiol groups in proteins changes during the process of sperm capacitation.

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Introduction: Involved in immunity and reproduction, natural killer (NK) cells offer opportunities to develop new immunotherapies to treat infections and cancer or to alleviate pregnancy complications. Most current strategies use cytokines or antibodies to enhance NK-cell function, but none use ion channel modulators, which are widely used in clinical practice to treat hypertension, diabetes, epilepsy, and other conditions. Little is known about ion channels in NK cells.

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Abdominal Pseudohernia Caused by Zoster Sine Herpete.

Cureus

November 2024

Community Medical Support Center, Wakayama Medical University, Wakayama, JPN.

Abdominal pseudohernia is a rare clinical condition characterized by an abnormal bulging of the abdominal wall. We present a 56-year-old male patient diagnosed with abdominal pseudohernia caused by zoster sine herpete (ZSH). The patient initially presented with a right abdominal wall bulging at the Th10 dermatome area.

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Article Synopsis
  • The study investigates long-term outcomes of chemoimmunotherapy for extensive-stage small-cell lung cancer (ES-SCLC) using a large cohort of patients over a minimum follow-up period of 3 years.
  • Most participants were trial-eligible, with significantly better overall survival rates compared to those who were not, highlighting the impact of eligibility criteria on treatment effectiveness.
  • The results underscore the practical implications of long-term outcomes in real-world settings, aiding clinical decisions for managing ES-SCLC patients.
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Background: Lung mucinous adenocarcinoma has various genetic alterations, but there are no reported cases with exon 14 skipping mutations. Multiplex genetic testing is commonly assessed in non-small cell lung cancer (NSCLC) and treatment usually comprises molecular targeted drugs. However, the efficacy of molecular targeted drugs in lung mucinous adenocarcinoma is not reported.

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Background: Deep tissue injury (DTI), a pressure-related injury to the subcutaneous tissue under intact skin, has been featured in several recent studies. DTI is hard to detect, and by the time the injury becomes visible, extensive injury to the underlying tissue has often already occurred, resulting in a potentially serious and difficult-to-heal full-thickness pressure injury. Thus, early detection of subcutaneous injuries is essential, and previous reports describe the use of ultrasonography and magnetic resonance imaging (MRI) for this purpose.

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Preventing subsequent fractures after vertebral augmentation is a critical clinical concern. The purpose of this study was to compare the effect of romosozumab and bisphosphonate administration on the occurrence of subsequent vertebral fractures after balloon kyphoplasty (BKP) and to identify factors associated with the occurrence of subsequent vertebral fractures. The study compared 24 patients who underwent BKP and received romosozumab with 58 control patients who underwent BKP and received bisphosphonates, all within 2 months of acute osteoporotic vertebral fracture and showing unfavorable magnetic resonance imaging prognostic factors.

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The Fontan operation, which directly connects the superior and inferior vena cava to the pulmonary artery, is a palliative surgery for children with a functional or anatomic single ventricle. This procedure leads to hemodynamic changes (Fontan circulation) in patients, who tend to develop congestive hepatic fibrosis characterized by sinusoidal fibrosis and dilatation beginning approximately 10 years after the procedure. In addition, in the context of severe fibrosis and cirrhosis, hepato-gastrointestinal complications including hepatocellular carcinoma, focal nodular hyperplasia, and portal hypertension can arise.

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Purpose: This cross-sectional study examined the gut microbiota species associated with skeletal muscle mass reduction in a community-based sample of older Japanese adults.

Methods: The study included 744 participants (320 men and 424 women) aged 65-89 years (mean age: 73 years) with no history of treatment for colorectal, chronic kidney, or liver diseases. Bioelectrical impedance analysis was performed to estimate the appendicular skeletal muscle mass (ASM) of each participant.

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Article Synopsis
  • The EF-14 clinical trial confirmed the safety and efficacy of tumor-treating fields (TTFields) in glioblastoma, prompting this study to assess its status among Japanese patients meeting the same criteria.
  • A multicenter retrospective analysis was conducted with data from 607 patients, ultimately focusing on 537, where 39% received TTField treatment, highlighting factors like younger age and having a caregiver as key determinants for usage.
  • Results showed that despite high compliance rates (over 75%) and a median usage duration of 11 months, TTFields did not significantly impact progression-free survival or overall survival in patients with glioblastoma.
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Introduction: Minimally invasive surgical treatment of myelopathy caused by central thoracic disc herniation (TDH) is challenging to carry out because reaching the herniation site is difficult and the thoracic spinal cord is fragile. In this study, using the posterior-lateral approach for central TDH with myelopathy, we present a novel procedure of transcostal microendoscopic discectomy (TCMED).

Technical Note: The patient was operated in a prone position under general anesthesia.

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  • Delirium-onset prodromal Lewy body disease (LBD) is emerging as a key early stage of LBD, but its specific clinical features and biomarkers are not yet fully understood.
  • Five cases were studied using neuroimaging techniques, revealing that patients exhibited common symptoms like sleep issues and minor hallucinations before delirium occurred.
  • The study suggests that delirium could indicate more advanced stages of prodromal LBD, triggered by various factors, and that cognitive symptoms may improve with treatment like donepezil.
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Background: We compare the oncological outcomes and health-related quality of life (HRQOL) in men with high-risk prostate cancer after robot-assisted radical prostatectomy (RARP) versus that after high-dose-rate brachytherapy + external beam radiotherapy + hormone therapy (hereafter: "HDR+").

Methods: We included 233 men who underwent RARP and 179 men who underwent HDR+ for high-risk prostate cancer at our hospital. We investigated the following oncologic outcomes: time to biochemical recurrence, time to development of castration-resistant prostate cancer (CRPC), cancer-specific survival, and overall survival.

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Article Synopsis
  • - The study investigates factors that can help prevent and reduce the severity of anastomotic leakage (AL), a serious complication after esophagectomy and gastric tube reconstruction, by analyzing data from 183 patients with esophageal cancer over a five-year period.
  • - AL was found in 22% of patients, with a significant decrease in rates after the introduction of blood perfusion evaluation using indocyanine green, dropping from 28.0% to 14.4%.
  • - The lack of blood perfusion evaluation was identified as a major risk factor for AL and was linked to longer recovery times and increased interventions, emphasizing the importance of this evaluation in improving patient outcomes post-surgery.
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Pharmaceutical packaging is essential for enhancing the storage stability of medicine and can improve medication adherence and usability. Despite their widespread use, blister packs can be challenging to use, especially when pushing out the medication. This study investigates how specific cavity characteristics of blister packs can enhance usability for spherical capsules, which are harder to push out than tablets.

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Background: Lymphovascular invasion (LVI) or pT1b is noncurative after endoscopic resection (ER) for esophageal squamous cell carcinoma (ESCC), and therefore surgery or chemoradiotherapy (CRT) is recommended. However, there has been debate regarding which treatment has better outcomes and whether individual risks should be considered.

Methods: This was a multicenter, retrospective study conducted at 65 hospitals in Japan.

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  • The study examines how bariatric/metabolic surgery affects the incidence and severity of COVID-19 among patients in Japan, amidst ongoing debates about its protective benefits.
  • Data were collected from 83 institutions, revealing that while there were no severe cases or deaths among 119 patients studied, moderate COVID-19 cases were notably more prevalent in these bariatric patients than in the general population.
  • The findings suggest that bariatric/metabolic surgery does not reduce the risk of COVID-19 complications, as moderate cases were linked to specific risk factors such as dyslipidemia and prior infection.
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Central blood pressure (BP) is more strongly associated with cardiovascular events than brachial BP. Few studies have described age-related changes in central BP in the general Japanese population. This study aimed to provide reference values for central BP parameters according to the age and sex, using data from 2964 participants aged 40-89 years (mean age: 60 years) who had no history of overt cardiovascular or chronic kidney disease and had not received antihypertensive, lipid-lowering, or hypoglycemic treatments.

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Background: S-1 monotherapy had previously been widely used as a second-line treatment for pancreatic cancer (PC) after gemcitabine-based chemotherapy mainly in Japan. Based on the results of the NAPOLI-1 trial, the recommended second-line therapy is now liposomal irinotecan plus fluorouracil/folinic acid (nal-IRI + 5-FU/LV). However, there have been no studies comparing nal-IRI + 5-FU/LV therapy with S-1 monotherapy.

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Objective: Mesial temporal lobe epilepsy (mTLE) and neocortical epilepsy (NE) have different anatomo-clinical characteristics. The authors hypothesized that this may be reflected in the different functional connectivity of the epileptogenic zone between mTLE and NE. The authors, therefore, examined preoperative resting-state functional connectivity MRI with regional global connectivity (rGC) analysis for surgically treated patients.

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Aim: Psychiatric problems are common in critically ill patients after discharge from an intensive care unit (ICU). The effect of intensive care unit (ICU) diaries on psychiatric symptoms after ICU discharge was investigated in this prospective study.

Methods: Enrolled were critically ill adult patients who were emergently admitted to an ICU and expected to stay for at least 2 days.

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Introduction: Balloon kyphoplasty (BKP) for osteoporotic vertebral fracture (OVF) has been reported to maintain quality of life (QOL). This study aimed to investigate the effectiveness of ultra-early BKP performed within two weeks of injury (ultra-early group) to cases after two to four weeks post-injury (early group) and over four weeks (conventional group), assessing radiographic assessment such as subsequent fracture etc, questionarre such as QOL and back pain-related activities of daily living (ADL) one year after surgery.

Methods: Ninety cases of OVF treated with BKP (23 males, 67 females, average age 78.

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Aim: Fontan-associated liver disease (FALD) is a complication after Fontan surgery, and a common cause of liver tumors and cirrhosis. However, no diagnostic criteria for FALD have been established, leading to an underestimation of its prevalence.

Methods: We conducted a national survey to elucidate the characteristics of FALD by collecting data from high-volume centers managing patients who had undergone the Fontan surgery in Japan.

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: Antibiotics are inappropriately prescribed for respiratory tract infections for various reasons. The differences of the effects of education based on these reasons has not been fully elucidated. This study assessed the impact of an educational film on antibiotic prescription patterns according to physicians' prescribing justifications.

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Drug therapy for secondary lymphedema has not yet been established. Conventional oral and intravenous administration is difficult to administer in sufficient doses due to adverse events. Therefore, it is necessary to develop a transdermal delivery system that can deliver high concentrations of drugs to the edema area.

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