Publications by authors named "Shigehara K"

Background: The incidence of allergic diseases has been increasing in Japan. In particular, a serious decline in the age of onset of allergic rhinitis has been observed. Passive smoking from parental smoking has a significant impact on children's health; however, it is difficult to restrict smoking in the home.

View Article and Find Full Text PDF

We investigated the mechanisms of interaction between bladder cancer (BC) cells and tumor-associated macrophages (TAMs). Coculturing BC cell lines (UMUC3 and T24) with macrophage-like cells differentiated from THP-1 into M2-like TAMs revealed a decrease in Cluster of Differentiation (CD) 68 expression and an increase in CD206 expression. This differentiation enhanced BC cell migration and invasion.

View Article and Find Full Text PDF

Background: The occurrence of aorto-right atrial fistula in a patient with Stanford type A aortic dissection is exceedingly rare, and the treatment has not been established.

Case Presentation: A 60-year-old male presented to the emergency department with acute lumbar pain and, based on contrast-enhanced computed tomography, was diagnosed with Stanford type A aortic dissection. Emergency surgery was performed.

View Article and Find Full Text PDF

Purpose: We investigated the effects of testosterone replacement therapy (TRT) on the Fibrosis-4 (FIB-4) index among hypogonadal patients who were extracted from a randomized controlled study in Japan (the EARTH study).

Materials And Methods: Data of 186 patients (88 in the TRT group; 98 in the control group) were collected. The patients in the TRT group received intramuscular administration of testosterone enanthate (250 mg) every 4 weeks for 12 months.

View Article and Find Full Text PDF

Objectives Microsatellite instability-high (MSI-H) and high tumor mutation burden (TMB-high) frequencies were investigated to determine the efficacy and adverse events of pembrolizumab in patients with urologic malignancies (or their equivalents) for which immune checkpoint inhibitors (ICIs) are not covered by Japanese insurance. Methods Between February 2019 and April 2024, patients with urologic malignancies (or their equivalents) treated in our department for whom ICIs were not approved by Japanese insurance were screened with an MSI companion diagnostic kit or comprehensive genomic profiling (CGP). The efficacy of pembrolizumab therapy, presence of adverse events, and outcomes were evaluated retrospectively in patients with MSI-H or TMB-high.

View Article and Find Full Text PDF
Article Synopsis
  • - The treatment approach for metastatic castration-sensitive prostate cancer (mCSPC) has evolved, with androgen receptor signaling inhibitors (ARSI) being the first choice; however, for some Asian patients, androgen deprivation therapy (ADT) and CAB may be more effective.
  • - A study of 218 prostate adenocarcinoma patients at Kanazawa University Hospital analyzed risk classification using the Canazawa criteria, which considers factors like Gleason pattern, bone scan index, and LDH levels to better predict outcomes.
  • - Results indicated a median overall survival of 85.2 months and a median time to castration resistance of 16.4 months; lower PSA levels after 12 weeks of ADT were linked to
View Article and Find Full Text PDF

Background: A head-to-head comparison between enzalutamide (ENZ) and abiraterone plus prednisolone (ABI) revealed similar survival benefits for castration-resistant prostate cancer (CRPC) in the ENABLE study for PCa. Considering that a dose reduction of ENZ and ABI has demonstrated sufficient inhibitory ability of androgen receptor (AR) signaling, we analyzed the efficacy of modified doses of these agents in the ENABLE study for PCa.

Methods: This investigator-initiated, multicenter, randomized controlled trial that was conducted in Japan analyzed the prespecified survival endpoints, prostate-specific antigen (PSA) response rate ( ≥50% decline from baseline), and safety profile in patients treated with modified doses (ENZ ≤ 120 mg/day, ABI ≤ 750 mg/day) compared with those treated with a standard dose (ENZ 160 mg/day, ABI 1000 mg/day) as a starting dose.

View Article and Find Full Text PDF

Background: Only a few reports have currently studied the efficacy of dutasteride in patients with small benign prostatic hyperplasia (BPH). We investigated the efficacy of dutasteride on reducing lower urinary tract symptoms among them.

Materials And Methods: A total of 81 patients with BPH who completed 52weeks of 0.

View Article and Find Full Text PDF
Article Synopsis
  • - The study focused on identifying risk factors for fluoroquinolone (FQ) resistance and understanding the clinical features of acute bacterial prostatitis (ABP) in Japan, involving 124 patients across 13 medical centers during 2017.
  • - Key findings indicated that severe dysuria, urinary retention, and transrectal prostate biopsy (TRBx) were common medical conditions for patients, with Escherichia coli being the most prevalent organism, and notable resistance to FQ antibiotic treatment was found in 33% of cases.
  • - The research concluded that patients with a history of TRBx and those admitted to the hospital had significantly higher rates of FQ-resistant bacteria, emphasizing the need for specific management strategies for ABP cases
View Article and Find Full Text PDF
Article Synopsis
  • Enfortumab vedotin (EV) is used to treat metastatic urothelial carcinoma (mUC), but the study aimed to compare the safety and efficacy of standard versus biweekly administration.
  • The research included two patient groups: one receiving standard EV treatment and the other receiving it biweekly, and it evaluated their treatment outcomes and side effects (AEs).
  • Results showed no significant differences in survival rates or response between the groups, but the biweekly group experienced fewer side effects, suggesting it may be a safer option.
View Article and Find Full Text PDF
Article Synopsis
  • Intraoperative hypotension is a significant issue during photodynamic diagnosis-assisted transurethral resection of bladder tumors, particularly when using oral 5-aminolevulinic acid, prompting a re-evaluation of its safety.
  • A study involving 407 cases highlighted that patients in the photodynamic diagnosis (PDD) group experienced more moderate to severe hypotension compared to the white light (WL) group, with renal function declining as hypotension severity increased.
  • Findings suggest that anesthesia type may influence hypotension severity, with general anesthesia linked to milder cases and spinal anesthesia associated with severe cases, indicating a need for further research to understand specific risk factors better.
View Article and Find Full Text PDF

Objectives: We report the first prospective trial of prostatic urethral lift for the treatment of lower urinary tract symptoms associated with benign prostatic hyperplasia in Japan.

Methods: This prospective study was conducted at a single institution and included patients with benign prostatic hyperplasia who underwent prostatic urethral lift based on the Japanese surgical indication. The primary efficacy endpoint was reduced international prostatic symptoms score in the early postoperative period after prostatic urethral lift.

View Article and Find Full Text PDF

Background: The efficacy of intermittent androgen deprivation therapy (ADT) for biochemical recurrence (BCR) after robot-assisted radical prostatectomy (RARP) is unknown, and its usefulness in Japanese practice needs to be investigated.

Methods: We conducted a retrospective analysis of 85 patients who underwent RARP and were selected for intermittent ADT for postoperative recurrence at Kanazawa University Hospital between 2009 and 2019. Intermittent ADT was administered for 2 years.

View Article and Find Full Text PDF

Introduction: Low-dose-rate brachytherapy is performed for localized prostate cancer. We report the first case of a bladder stone encompassing the seed migrated into the bladder in a patient treated with low-dose-rate brachytherapy.

Case Presentation: A man was diagnosed with prostate cancer and underwent low-dose-rate brachytherapy.

View Article and Find Full Text PDF

Background: Photodynamic diagnosis-assisted transurethral resection of bladder tumor (PDD-TURBT) for nonmuscle-invasive bladder cancer is superior to conventional white-light TURBT for cancer detection. However, when performing PDD-TURBT, cystoscopy findings vary depending on the quality of the endoscopic equipment. In this study, we compared the effects of different types of endoscopic equipment on postoperative outcomes.

View Article and Find Full Text PDF

Bone is a common site of prostate cancer metastasis. Bone turnover markers n-terminal propeptide of type I procollagen (P1NP) and tartrate-resistant acid phosphatase type 5b (TRACP-5b) are highly sensitive to bone remodeling activity. However, their prognostic significance as markers of prostate cancer is unknown.

View Article and Find Full Text PDF

Objectives: Patients with advanced cancer may develop bacterial infections (BI) as their general condition worsens, but general blood tests often find it difficult to distinguish them from non-bacterial infections (NBI). The present prospective study was undertaken to investigate the effectiveness of serum procalcitonin levels in distinguishing between BI and NBI in patients with advanced urological cancer.

Methods: This study prospectively evaluated patients diagnosed with locally advanced or metastatic or recurrent urological cancer in our department from September 2013 to December 2019.

View Article and Find Full Text PDF

Context: Thyroglobulin (Tg), encoded by TG, is essential for thyroid hormone synthesis. TG defects result in congenital hypothyroidism (CH). Most reported patients were born before the introduction of newborn screening (NBS).

View Article and Find Full Text PDF
Article Synopsis
  • Humoral immunity is crucial for protecting the body, but faulty antibody responses can lead to inflammation and immune disorders.
  • T follicular helper (Tfh) cells are key players in this immune response, and the study focuses on the role of B-cell Oct-binding protein 1 (Bob1) in regulating these cells.
  • The research indicates that Bob1 is essential for maintaining Tfh cell function, especially in producing antibodies during immune responses, and that it significantly influences antibody production, including IgE, in asthma models triggered by allergens like house dust mites.
View Article and Find Full Text PDF

Purpose: To compare the prognosis and quality of life between radical cystectomy and bladder conservative treatment for muscle invasive bladder cancer in the real world.

Materials And Methods: Patients treated for muscle invasive bladder cancer without metastases were retrospectively evaluated for overall survival, progression-free survival, and rehospitalization.

Results: Of the 141 patients, 62 underwent bladder conservative treatment and 79 underwent radical cystectomy.

View Article and Find Full Text PDF
Article Synopsis
  • - The study compares the effectiveness of enzalutamide (ENZ) and abiraterone plus prednisolone (ABI) in treating nonmetastatic castration-resistant prostate cancer (CRPC) through a randomized controlled trial conducted in Japan.
  • - Results showed no significant differences in prostate-specific antigen (PSA) response rates and overall survival between ENZ (80%) and ABI (64%) groups, indicating both treatments have similar efficacy.
  • - The safety profiles were also comparable, with few patients experiencing serious adverse events, suggesting both ENZ and ABI are viable first-line treatment options for nonmetastatic CRPC.
View Article and Find Full Text PDF

Nephrogenic adenoma (NA) is an epithelial lesion that usually occurs in the mucosa of the urinary tract. Rare cases of deep infiltrative or perinephric lesions have also been reported. Recently, NA with characteristic fibromyxoid stroma (fibromyxoid NA) has been proposed as a distinct variant.

View Article and Find Full Text PDF

Introduction: Condyloma acuminatum usually occurs in the external genitalia and rarely in the bladder mucosa. Here, we report a case of condyloma acuminatum of the bladder that was detected concurrently with urothelial carcinoma.

Case Presentation: A 42-year-old man was referred to our urology department with positive urine cytology for urothelial carcinoma.

View Article and Find Full Text PDF

The relationships between T follicular helper (Tfh) cells and antigen-specific immunoglobulins (sIgs) in patients with allergic respiratory diseases who are receiving antigen immunotherapy (AIT) have not been fully clarified. Therefore, we started to perform house dust mite sublingual immunotherapy (HDM-SLIT) for 20 patients with atopic asthma comorbid with allergic rhinitis (AA+AR) who were already receiving ordinary treatments including inhaled corticosteroid (ICS). We examined percentages of circulating T follicular helper (cTfh) and regulatory (cTfr) cells and percentages of circulating regulatory T (cTreg) and B (cBreg) cells by FACS and we examined levels of sIgs by ELISA.

View Article and Find Full Text PDF