1.Prognostic impact of the number of resected pelvic nodes in endometrial cancer: Japanese Gynecologic Oncology Group Study JGOG2043 post hoc analysis
Yosuke KONNO ; Michinori MAYAMA ; Kazuhiro TAKEHARA ; Yoshihito YOKOYAMA ; Jiro SUZUKI ; Nobuyuki SUSUMU ; Kenichi HARANO ; Satoshi NAKAGAWA ; Toru NAKANISHI ; Wataru YAMAGAMI ; Kosuke YOSHIHARA ; Hiroyuki NOMURA ; Aikou OKAMOTO ; Daisuke AOKI ; Hidemichi WATARI
Journal of Gynecologic Oncology 2025;36(1):e3-
Objective:
This study aimed to determine whether the number of resected pelvic lymph nodes (PLNs) affects the prognosis of endometrial cancer (EC) patients at post-operative risk of recurrence.
Methods:
JGOG2043 was a randomized controlled trial to assess the efficacy of three chemotherapeutic regimens as adjuvant therapy in EC patients with post-operative recurrent risk. A retrospective analysis was conducted on 250 patients who underwent pelvic lymphadenectomy alone in JGOG2043. The number of resected and positive nodes and other clinicopathologic risk factors for survival were retrieved.
Results:
There were 83 patients in the group with less than 20 PLNs removed (group A), while 167 patients had 20 or more PLNs removed (group B). There was no significant difference in patients’ backgrounds between the two groups, and the rate of lymph node metastasis was not significantly different. There was a trend toward fewer pelvic recurrences in group B compared with group A (3.5% vs. 9.6%; p=0.050). Although Kaplan-Meier analysis showed no statistically significant difference in survival rates between the two groups (5-year overall survival [OS]=90.3% vs. 84.3%; p=0.199), multivariate analysis revealed that resection of 20 or more nodes is one of the independent prognostic factors (hazard ratio=0.49; 95% confidence interval=0.24–0.99; p=0.048), as well as surgical stage, high-risk histology, and advanced age for OS.
Conclusion
Resection of 20 or more PLNs was associated with improved pelvic control and better survival outcomes in EC patients at risk of recurrence who underwent pelvic lymphadenectomy alone and were treated with adjuvant chemotherapy.
2.Prognostic impact of the number of resected pelvic nodes in endometrial cancer: Japanese Gynecologic Oncology Group Study JGOG2043 post hoc analysis
Yosuke KONNO ; Michinori MAYAMA ; Kazuhiro TAKEHARA ; Yoshihito YOKOYAMA ; Jiro SUZUKI ; Nobuyuki SUSUMU ; Kenichi HARANO ; Satoshi NAKAGAWA ; Toru NAKANISHI ; Wataru YAMAGAMI ; Kosuke YOSHIHARA ; Hiroyuki NOMURA ; Aikou OKAMOTO ; Daisuke AOKI ; Hidemichi WATARI
Journal of Gynecologic Oncology 2025;36(1):e3-
Objective:
This study aimed to determine whether the number of resected pelvic lymph nodes (PLNs) affects the prognosis of endometrial cancer (EC) patients at post-operative risk of recurrence.
Methods:
JGOG2043 was a randomized controlled trial to assess the efficacy of three chemotherapeutic regimens as adjuvant therapy in EC patients with post-operative recurrent risk. A retrospective analysis was conducted on 250 patients who underwent pelvic lymphadenectomy alone in JGOG2043. The number of resected and positive nodes and other clinicopathologic risk factors for survival were retrieved.
Results:
There were 83 patients in the group with less than 20 PLNs removed (group A), while 167 patients had 20 or more PLNs removed (group B). There was no significant difference in patients’ backgrounds between the two groups, and the rate of lymph node metastasis was not significantly different. There was a trend toward fewer pelvic recurrences in group B compared with group A (3.5% vs. 9.6%; p=0.050). Although Kaplan-Meier analysis showed no statistically significant difference in survival rates between the two groups (5-year overall survival [OS]=90.3% vs. 84.3%; p=0.199), multivariate analysis revealed that resection of 20 or more nodes is one of the independent prognostic factors (hazard ratio=0.49; 95% confidence interval=0.24–0.99; p=0.048), as well as surgical stage, high-risk histology, and advanced age for OS.
Conclusion
Resection of 20 or more PLNs was associated with improved pelvic control and better survival outcomes in EC patients at risk of recurrence who underwent pelvic lymphadenectomy alone and were treated with adjuvant chemotherapy.
3.Prognostic impact of the number of resected pelvic nodes in endometrial cancer: Japanese Gynecologic Oncology Group Study JGOG2043 post hoc analysis
Yosuke KONNO ; Michinori MAYAMA ; Kazuhiro TAKEHARA ; Yoshihito YOKOYAMA ; Jiro SUZUKI ; Nobuyuki SUSUMU ; Kenichi HARANO ; Satoshi NAKAGAWA ; Toru NAKANISHI ; Wataru YAMAGAMI ; Kosuke YOSHIHARA ; Hiroyuki NOMURA ; Aikou OKAMOTO ; Daisuke AOKI ; Hidemichi WATARI
Journal of Gynecologic Oncology 2025;36(1):e3-
Objective:
This study aimed to determine whether the number of resected pelvic lymph nodes (PLNs) affects the prognosis of endometrial cancer (EC) patients at post-operative risk of recurrence.
Methods:
JGOG2043 was a randomized controlled trial to assess the efficacy of three chemotherapeutic regimens as adjuvant therapy in EC patients with post-operative recurrent risk. A retrospective analysis was conducted on 250 patients who underwent pelvic lymphadenectomy alone in JGOG2043. The number of resected and positive nodes and other clinicopathologic risk factors for survival were retrieved.
Results:
There were 83 patients in the group with less than 20 PLNs removed (group A), while 167 patients had 20 or more PLNs removed (group B). There was no significant difference in patients’ backgrounds between the two groups, and the rate of lymph node metastasis was not significantly different. There was a trend toward fewer pelvic recurrences in group B compared with group A (3.5% vs. 9.6%; p=0.050). Although Kaplan-Meier analysis showed no statistically significant difference in survival rates between the two groups (5-year overall survival [OS]=90.3% vs. 84.3%; p=0.199), multivariate analysis revealed that resection of 20 or more nodes is one of the independent prognostic factors (hazard ratio=0.49; 95% confidence interval=0.24–0.99; p=0.048), as well as surgical stage, high-risk histology, and advanced age for OS.
Conclusion
Resection of 20 or more PLNs was associated with improved pelvic control and better survival outcomes in EC patients at risk of recurrence who underwent pelvic lymphadenectomy alone and were treated with adjuvant chemotherapy.
4.Patient-specific mechanical analysis of pedicle screw insertion in simulated osteoporotic spinal bone models derived from medical images
Norihiro NISHIDA ; Hidenori SUZUKI ; Hanvey TETSU ; Yuki MORISHITA ; Yogesh KUMARAN ; Fei JIANG ; Masahiro FUNABA ; Kazuhiro FUJIMOTO ; Yusuke ICHIHARA ; Takashi SAKAI ; Junji OHGI
Asian Spine Journal 2024;18(5):621-629
Methods:
Male and female patients with computed tomography data were selected. Dimensions of the first thoracic (T1), fourth lumbar (L4), and fifth lumbar (L5) vertebrae were measured, and bone models consisting of the cancellous and cortical bones made from polyurethane foam were created. PS with diameters of 4.5 mm, 5.5 mm, and 6.5 mm were used. T1 PS were 25 mm long, and L4 and L5 PS were 40 mm long. The bone models were secured with cement, and the MIT was measured using a calibrated torque wrench. After MIT testing, the PS head was attached to the machine’s crosshead. POS was then calculated at a crosshead speed of 5 mm/min until failure.
Results:
The L4 and L5 were notably larger in female bone models, whereas the T1 vertebra was larger in male bone models. Consequently, the MIT and POS for L4 and L5 were higher in female bone models across all PS diameters than in male bone models. Conversely, the MIT for T1 was higher in male bone models across all PS; however, no significant differences were observed in the POS values for T1 between sexes.
Conclusions
The mechanical properties of the proposed bone models can vary based on the vertebral structure and size. For accurate 3D surgical and mechanical simulations in the creation of custom-made medical devices, bone models must be constructed from patientspecific medical images.
5.The albumin to globulin ratio is associated with clinical outcome in Japanese patients with ulcerative colitis
Sen YAGI ; Shinya FURUKAWA ; Kana SHIRAISHI ; Teruki MIYAKE ; Kazuhiro TANGE ; Yu HASHIMOTO ; Shogo KITAHATA ; Tomoe KAWAMURA ; Tomoyuki NINOMIYA ; Kenichirou MORI ; Seiyuu SUZUKI ; Naozumi SHIBATA ; Hidehiro MURAKAMI ; Katsuhisa OHASHI ; Aki HASEBE ; Hideomi TOMIDA ; Yasunori YAMAMOTO ; Eiji TAKESHITA ; Yoshio IKEDA ; Yoichi HIASA
Annals of Coloproctology 2023;39(2):155-163
Purpose:
The albumin-to-globulin ratio (AGR) is a recognized chronic inflammation marker. No evidence regarding the relationship between AGR level and ulcerative colitis (UC) exists. The aim of this study was to evaluate the association between AGR and clinical outcomes among Japanese subjects with UC.
Methods:
The study subjects consisted of 273 Japanese individuals with UC. AGR was divided into 4 categories (low, moderate, high, and very high). The definition of complete mucosal healing (MH) was based on the Mayo endoscopic subscore of 0. Clinical remission (CR) was defined as no rectal bleeding and no abnormally high stool frequency (<3 times per day).
Results:
The percentage of MH was 26.4%. High AGR and very high AGR were significantly positively correlated with CR (adjusted odds ratio [OR], 5.85; 95% confidence interval [CI], 2.52–14.18 and adjusted OR, 4.97; 95% CI, 2.14–12.04) and complete MH (adjusted OR, 4.03; 95% CI, 1.56–11.51 and adjusted OR, 5.22; 95% CI, 1.97–14.89), respectively after adjustment for confounding factors (P for trend=0.001). Only in the low C-reactive protein (CRP) group (≤0.1 mg/dL), very high AGR was significantly positively correlated with complete MH but not CR (adjusted OR, 4.38; 95% CI, 1.06–21.77; P for trend=0.017). In the high CRP group, no correlation between AGR and complete MH was found.
Conclusion
Among Japanese patients with UC, AGR may be independently positively correlated with complete MH. In particular, among UC patients with low CRP, AGR might be a useful complementary marker for complete MH.
6.Preoperative serum microRNAs as potential prognostic biomarkers in ovarian clear cell carcinoma
Kazuhiro SUZUKI ; Akira YOKOI ; Kosuke YOSHIDA ; Tomoyasu KATO ; Takahiro OCHIYA ; Yusuke YAMAMOTO ; Hiroaki KAJIYAMA
Journal of Gynecologic Oncology 2023;34(3):e34-
Objective:
Ovarian clear cell carcinoma (OCCC) is a subtype of epithelial ovarian carcinoma with poor prognosis. However, no effective biomarkers have been established for predicting unfavorable events, including recurrence and poor prognoses. Serum microRNAs (miRNAs) have been increasingly reported to be useful in predicting a patient’s condition and have been recognized as a potentially less-invasive source for liquid biopsy in cancer. Therefore, this study aimed to evaluate serum miRNA profiles from patients with OCCC and to establish biomarker for predicting the prognoses.
Methods:
The GSE106817, which included preoperative serum miRNA profiles of patients with ovarian tumors, was used, and clinical information was investigated. In all, 66 patients with OCCC were included, excluding those with other histological subtypes or insufficient prognostic information. Moreover, miRNA profiles of OCCC tissues were also examined.
Results:
The median follow-up period was 64.3 (8.0–153.3) months. Based on multivariable Cox regression analyses and the expression of miRNAs in OCCC tissues, miR-150-3p, miR-3195, and miR-7704 were selected as miRNA candidates associated with both progression-free survival (PFS) and overall survival (OS). Then, the prognostic index was calculated based on expression values of 3 serum miRNAs. Kaplan-Meier survival analysis indicated that the prognostic index was significantly predictive of PFS and OS (p=0.004 and p=0.012, respectively).
Conclusion
Preoperative serum miRNA profiles of miR-150-3p, miR-3195, and miR-7704 can be used to potentially predict the prognosis of patients with OCCC.
7.Antitumor and Complementary Effects of Original Konjac Jelly Mixed with Soymilk, Cheese and Vitamin C for Cisplatin-resistant Bladder Cancer
Hidekazu KOIKE ; Takeshi MIYAO ; Azusa KANAYAMA ; Kazuhiro SUZUKI
Japanese Journal of Complementary and Alternative Medicine 2022;19(1):15-21
In this study, we aimed to develop foods with antitumor and complementary effects against cisplatin (CDDP)-resistant bladder cancer. UMUC3, a human bladder cancer cell line was exposed to CDDP and cultured over a prolonged period to prepare UMUC3-CR, a CDDP-resistant subline. Androgen receptor mRNA expression was high in the UMUC3-CR subline. Genistein and vitamin C suppressed UMUC3-CR tumor growth. Additionally, the liberal intake of cheese in parental cell UMUC3-transplanted mice was associated with prolonged survival. Therefore, we created konjac jelly (KIK300) containing soy milk, cheese, and vitamin C as the main ingredients. Liberal administration of KIK300 to UMUC3-CR-transplanted mice suppressed tumor growth and reduced vascular endothelial growth factor mRNA expression. Furthermore, we observed no weight loss in the animals, their skin condition improved, and exercise capacity was improved. In conclusion, this study suggests that KIK300 may show antitumor and complementary effects on CDDP-resistant bladder cancer.
8.Frequency and clinical features of deficient mismatch repair in ovarian clear cell and endometrioid carcinoma
Tamaki TANAKA ; Kazuhiro TAKEHARA ; Natsumi YAMASHITA ; Mika OKAZAWA-SAKAI ; Kazuya KURAOKA ; Norihiro TERAMOTO ; Kenichi TAGUCHI ; Katsushige YAMASHIRO ; Hidenori KATO ; Tomoya MIZUNOE ; Rie SUZUKI ; Dan YAMAMOTO ; Arisa UEKI ; Toshiaki SAITO
Journal of Gynecologic Oncology 2022;33(5):e67-
Objective:
To clarify the frequency of deficient mismatch repair (dMMR) in Japanese ovarian cancer patients, we examined microsatellite instability (MSI) status and immunohistochemistry (IHC) subtypes, including endometrioid carcinoma (EMC), clear cell carcinoma (CCC), or a mixture of both (Mix).
Methods:
We registered 390 patients who were diagnosed with EMC/CCC/Mix between 2006 and 2015 and treated at seven participating facilities. For 339 patients confirmed eligible by the Central Pathological Review Board, MSI, IHC, and MutL homolog 1 methylation analyses were conducted. The tissues of patients with Lynch syndrome (LS)-related cancer histories, such as colorectal and endometrial cancer, were also investigated.
Results:
MSI-high (MSI-H) status was observed in 2/217 CCC (0.9%), 10/115 EMC (8.7%), and 1/4 Mix (25%). Additionally, loss of MMR protein expression (LoE-MMR) was observed in 5/219 (2.3%), 16/115 (14.0%), and 1/4 (25%) patients with CCC, EMC, and Mix, respectively. Both MSI-H and LoE-MMR were found significantly more often in EMC (p<0.001). The median (range) ages of patients with MMR expression and LoE-MMR were 54 (30–90) and 46 (22–76) (p=0.002), respectively. In the multivariate analysis, advanced stage and histological type were identified as prognostic factors.
Conclusion
The dMMR rate for EMC/CCC was similar to that reported in Western countries. In Japan, it is assumed that the dMMR frequency is higher because of the increased proportion of CCC.
9.Effects of Modified Constraint-induced Movement Therapy without Constraints on the Unimpaired Side of the Lower Limb in Patients with Chronic Stroke
Kazuhiro MATSUZAWA ; Takashi MURAYAMA ; Tomoyoshi KOBARI ; Akiho SUZUKI ; Naohisa KIKUCHI ; Katsunori YOSHINAGA
The Japanese Journal of Rehabilitation Medicine 2019;():18021-
Constraint-induced movement therapy (CIMT) has been a well-established rehabilitative method for upper limb paralysis in patients post-stroke. In recent years, its application to lower limb paralysis (Lower limb CIMT, L-CIMT) has been reported. However, the reported intensive lower limb trainings do not seem enough to target behavioral modifications in an individual's daily life. In this study, we investigated the effects of L-CIMT including the transfer package to induce behavioral transformation in normal daily life of patients with lower limb paralysis. The L-CIMT including the transfer package was administered to three patients with chronic-phase stroke without any constraint on the healthy lower limb for 3.5 hours a day, 5 days a week for 3 weeks. As a result, standing balance and walking ability were improved immediately and within 6 months after the intervention, respectively. All three cases experienced increased daily opportunities for standing and walking. We believe that L-CIMT including the transfer package can bring both short- and long-term improvements in standing balance and walking ability. This can lead to an increase in the frequency of standing and walking in daily living, along with an expanded range of action in ADL and IADL in patients with chronic-phase stroke.
10.Effects of Modified Constraint-induced Movement Therapy without Constraints on the Unimpaired Side of the Lower Limb in Patients with Chronic Stroke
Kazuhiro MATSUZAWA ; Takashi MURAYAMA ; Tomoyoshi KOBARI ; Akiho SUZUKI ; Naohisa KIKUCHI ; Katsunori YOSHINAGA
The Japanese Journal of Rehabilitation Medicine 2019;56(9):727-733
Constraint-induced movement therapy (CIMT) has been a well-established rehabilitative method for upper limb paralysis in patients post-stroke. In recent years, its application to lower limb paralysis (Lower limb CIMT, L-CIMT) has been reported. However, the reported intensive lower limb trainings do not seem enough to target behavioral modifications in an individual's daily life. In this study, we investigated the effects of L-CIMT including the transfer package to induce behavioral transformation in normal daily life of patients with lower limb paralysis. The L-CIMT including the transfer package was administered to three patients with chronic-phase stroke without any constraint on the healthy lower limb for 3.5 hours a day, 5 days a week for 3 weeks. As a result, standing balance and walking ability were improved immediately and within 6 months after the intervention, respectively. All three cases experienced increased daily opportunities for standing and walking. We believe that L-CIMT including the transfer package can bring both short- and long-term improvements in standing balance and walking ability. This can lead to an increase in the frequency of standing and walking in daily living, along with an expanded range of action in ADL and IADL in patients with chronic-phase stroke.


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