1.Machine Learning-Based Analysis of UF-5000Scattergrams Improves the Identification of Urinary Dysmorphic Red Blood Cells
Yoshifumi MORITA ; Teruhiko YOSHIDA ; Rin YOKOYAMA ; Naru NAKATSUKA ; Takashi HISASUE ; Masami TANAKA ; Yoshikazu ONO ; Kenichi SHUKUYA ; Makoto KURANO
Annals of Laboratory Medicine 2026;46(3):270-278
Background:
Identifying dysmorphic red blood cells (RBCs) is critical for diagnosing glomerular diseases, as distinguishing glomerular from non-glomerular hematuria may reduce reliance on invasive diagnostics such as kidney biopsy. We aimed to enhance urinary RBC morphological classification by employing machine learning (ML) to analyze UF-5000 scattergram data.
Methods:
RBCs in urine samples (N = 185) were classified as dysmorphic or isomorphic based on microscopic findings. UF-5000 scattergrams were quantified to generate 20 statistical features and used to train a ML model in DataRobot (v9.1) with an automated pipeline, five-fold cross-validation, and LogLoss-based selection. Performance was evaluated in an independent cohort (N = 1,093). Accuracy was defined as concordance with microscopy findings. Areas under ROC curves (AUROCs) and diagnostic metrics are reported with 95% confidence intervals (CIs).
Results:
Among conventional UF-5000 parameters, the small RBC/total RBC ratio was the strongest predictor (AUROC 0.97, 95% CI 0.94–0.99). Scattergram-derived features indicated that RBC size-related parameters were crucial for identifying dysmorphic RBCs. The ML model alone demonstrated superior accuracy over UF-5000 RBC-Info alone (concordance 95.2% vs. 92.1%; AUROC 0.95 [0.94–0.97] vs. 0.92 [0.91–0.94]). Logical (OR/ AND) combinations of the ML model with RBC-Info outperformed RBC-Info alone (OR: concordance 92.7%, AUROC 0.93 [0.92–0.95]; AND: concordance 94.6%, AUROC 0.94 [0.93–0.96]).
Conclusions
A scattergram-based ML model improves the accuracy and reliability of urinary RBC morphological classification based on UF-5000 scattergrams and may help reduce reliance on invasive diagnostics. Prospective, multicenter studies should validate generalizability and assess integration into routine workflows.
2.The Effect of Shakuyakukanzoto for Renal Colic
Miyabi INOUE ; Teruhiko YOKOYAMA ; Ayano ISHII ; Toyohiko WATANABE ; Toyoko YAMATO ; Hiromi KUMON
Kampo Medicine 2011;62(3):359-362
Aim:Shakuyakukanzoto is a Japanese herbal medicine that is known to be useful for the treatment of urinary stone pain. In this study, we investigated the effects of shakuyakukanzoto for acute renal colic.Methods:Twenty-five patients were enrolled in this study. Eleven patients took 5.0 g of shakuyakukanzoto powder, and 14 control patients took non-steroidal anti-inflammatory drugs (NSAIDs) for their acute renal colic. The effects were evaluated before and 15, 30, and 60 minutes after treatment with a numerical rating scale (NRS). We defined scale point zero as not having pain, and scale point ten as having the strongest pain.Results:Mean NRS scores improved from 6.7 ± 2.3 to 3.4 ± 3.5 after 15 minutes (shakuyakukanzoto group), and from 8.3 ± 1.8 to 7.0 ± 1.9 after 15 minutes (control group). NRS scores were improved immediately and significantly in both groups. The NRS score of shakuyakukanzoto group was significantly lower than that of control group at the any time after treatment. No side effects were observed in this study.Conclusion : Shakuyakukanzoto has an immediate effect, and it is more effective than NSAIDs. Shakuyakukanzoto was a useful treatment for acute renal colic.
3.The Effect of Hochuekkito on Female Stress Urinary Incontinence
Miyabi INOUE ; Teruhiko YOKOYAMA ; Ayano ISHII ; Toyohiko WATANABE ; Toyoko YAMATO ; Hiromi KUMON
Kampo Medicine 2010;61(6):853-855
Aim : Hochuekkito is a Japanese herbal medicine that is known to be useful for the treatment of uterine prolapse and urinary incontinence. In this study, we investigated the effects of hochuekkito prescriptions in female patients with stress urinary incontinence (SUI).
Methods : 13 women were enrolled in this study. They each took 7.5 g of hochuekkito powder prior to a meal three times a day, for 4 weeks. The effects were evaluated before and after treatment with a visual analogue scale (VAS), a incontinence-quality-of-life index (IQOL), and voiding diaries. Moreover, pad tests and uroflowmetry measures were done before and after treatment.
Results : VAS and IQOL scores were not improved significantly. Although the mean number of SUI episodes per one day, and the number of pads used decreased after treatment as compared to before, these were not significantly different. Micturition frequency and uroflowmetry parameters did not change after treatment. However, in patients whose Body Mass Index (BMI) was < 25, subjective symptoms significantly improved after treatment. No side effects were observed in this study.
Conclusion : Hochuekkito was a useful treatment for slender female patients with SUI.


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