1.Low Ki-67 labeling index is a clinically useful predictive factor for recurrence-free survival in patients with papillary thyroid carcinoma
Takashi MASUI ; Katsunari YANE ; Ichiro OTA ; Kennichi KAKUDO ; Tomoko WAKASA ; Satoru KOIKE ; Hirotaka KINUGAWA ; Ryuji YASUMATSU ; Tadashi KITAHARA
Journal of Pathology and Translational Medicine 2025;59(2):115-124
We report a new risk stratification of invasive stage papillary thyroid carcinomas (PTCs) by combining invasive status, using extrathyroid invasion (Ex) status, and tumor growth speed using the Ki-67 labeling index (LI). Methods: We examined tumor recurrence in 167 patients with PTC who were surgically treated at the Kindai University Nara Hospital between 2010 and 2022. The patients were classified according to the degree of invasion [negative (Ex0) or positive (Ex1, Ex2, and Ex3)] and tumor growth speed expressed with Ki-67 LI, as low (<5%) or high (>5%). This study confirmed previous findings that the disease-free survival (DFS) rate in PTCs significantly differed between patients with a high and low Ki-67 index. Results: When combining Ex status (negative or positive) and Ki-67 proliferation status (low or high), the DFS rate of invasion in the negative, low Ki-67 LI group was only 1.1%, while that of invasion in the positive, high Ki-67 LI was 44.1%. This study reports for the first time that recurrence risks can be stratified accurately when combining carcinoma’s essential two features of extrathyroid invasion status and tumor growth speed. Conclusions: We believe the evidence for low tumor recurrence risk may contribute to use of more conservative treatment options for invasive-stage PTCs and help alleviate patient anxiety about tumor recurrence and death.
2.Low Ki-67 labeling index is a clinically useful predictive factor for recurrence-free survival in patients with papillary thyroid carcinoma
Takashi MASUI ; Katsunari YANE ; Ichiro OTA ; Kennichi KAKUDO ; Tomoko WAKASA ; Satoru KOIKE ; Hirotaka KINUGAWA ; Ryuji YASUMATSU ; Tadashi KITAHARA
Journal of Pathology and Translational Medicine 2025;59(2):115-124
We report a new risk stratification of invasive stage papillary thyroid carcinomas (PTCs) by combining invasive status, using extrathyroid invasion (Ex) status, and tumor growth speed using the Ki-67 labeling index (LI). Methods: We examined tumor recurrence in 167 patients with PTC who were surgically treated at the Kindai University Nara Hospital between 2010 and 2022. The patients were classified according to the degree of invasion [negative (Ex0) or positive (Ex1, Ex2, and Ex3)] and tumor growth speed expressed with Ki-67 LI, as low (<5%) or high (>5%). This study confirmed previous findings that the disease-free survival (DFS) rate in PTCs significantly differed between patients with a high and low Ki-67 index. Results: When combining Ex status (negative or positive) and Ki-67 proliferation status (low or high), the DFS rate of invasion in the negative, low Ki-67 LI group was only 1.1%, while that of invasion in the positive, high Ki-67 LI was 44.1%. This study reports for the first time that recurrence risks can be stratified accurately when combining carcinoma’s essential two features of extrathyroid invasion status and tumor growth speed. Conclusions: We believe the evidence for low tumor recurrence risk may contribute to use of more conservative treatment options for invasive-stage PTCs and help alleviate patient anxiety about tumor recurrence and death.
3.Association between maternal distress during pregnancy and lower 5-min-Apgar score of the offspring: the Japan Environment and Children's Study.
Gita Nirmala SARI ; Satoyo IKEHARA ; Kanami TANIGAWA ; Yoko KAWANISHI ; Ehab S ESHAK ; Tadashi KIMURA ; Tomotaka SOBUE ; Hiroyasu ISO
Environmental Health and Preventive Medicine 2025;30():25-25
BACKGROUND:
Although the influence of maternal distress during pregnancy on newborn Apgar scores has been studied in various populations, there is limited research specifically addressing this issue among Asian women. This study of Japanese women aims to investigate the association between maternal distress during pregnancy and the risk of a low 5-min-Apgar score among newborns.
METHODS:
We analyzed data from 87,765 mother-newborn pairs in the Japan Environment and Children's Study. Using multivariable logistic regression, we estimated odds ratios (OR) and 95% confidence intervals (CI) for low Apgar scores (<7) at 5 minutes about maternal distress during early and mid-late pregnancy, as measured by the Kessler Psychological Distress Scale (K6). Apgar scores were obtained from newborns' medical records.
RESULTS:
A higher risk of low Apgar score in newborns at 5 minutes was found in mothers with moderate to severe distress than in those with low distress during mid-late pregnancy. The adjusted OR (95% CI) was 1.22 (1.05-1.42) for moderate distress (K6 = 5-12) and 1.42 (1.00-2.01) for severe distress compared to low distress (p for trend = 0.002). The positive association between maternal distress and the risk of low Apgar score was observed in preterm birth (<37 weeks) and low birth weight (<2,500 g) but not in term birth and normal birth weight.
CONCLUSION
Maternal distress during mid-late pregnancy was positively associated with the risk of low Apgar score of newborns, specifically in preterm birth and low birth weight.
Humans
;
Female
;
Pregnancy
;
Japan/epidemiology*
;
Apgar Score
;
Infant, Newborn
;
Adult
;
Stress, Psychological/epidemiology*
;
Male
;
Young Adult
;
Pregnancy Complications/epidemiology*
;
Mothers/psychology*
;
Risk Factors
4.Association between TV/DVD screen exposure time at age 1 and risk of chronic constipation at age 3: the Japan Environment and Children's Study.
Masashi HOTTA ; Satoyo IKEHARA ; Makiko TACHIBANA ; Kazuko WADA ; Junji MIYAZAKI ; Tadashi KIMURA ; Ryo KAWASAKI ; Hiroyasu ISO
Environmental Health and Preventive Medicine 2025;30():80-80
BACKGROUND:
Chronic constipation is a long-term problem that decreases children's quality of life. Information and communication technology devices have developed rapidly in recent decades and have had various impacts on children. This prospective cohort study examined the association between television/digital versatile disc (TV/DVD) screen exposure time at age 1 and the risk of chronic constipation at age 3.
METHODS:
Data from 63,697 infants in the Japan Environment and Children's Study (JECS) were analyzed. We divided participants into five groups according to TV/DVD exposure time per day: no exposure (0 h), short exposure (<1 h), middle exposure (1.0-<2.0 h), long exposure (2.0-<4.0 h), and very long exposure (≥4 h). Logistic regression analysis was performed to assess the association between TV/DVD exposure time and the risk of constipation. For logistic regression analysis, odds ratios (ORs) were adjusted for sex, parents' education, household income, nursery school, feeding contents, and obesity. The interaction between the sexes was also examined.
RESULTS:
The prevalence of constipation for males, females, and all participants at age 3 was 9.3, 11.0, and 10.1%, respectively. The TV/DVD screen time distribution per day at age 1 was 10.6% for none, 34.1% for short, 29.9% for middle, 19.2% for long, and 6.2% for the very long exposure group. After adjusting for confounding factors, a dose-response pattern was identified between TV/DVD exposure time and constipation in all participants (p for trend < 0.001). The adjusted ORs increased progressively in the short (OR 1.15, 95% confidence interval [CI] 1.04-1.27), middle (OR 1.22, 95% CI 1.11-1.35), long (OR 1.37, 95% CI 1.24-1.52), and very long exposure groups (OR 1.53, 95% CI 1.35-1.74). This association was not significantly different between the sexes (p for interaction = 0.36).
CONCLUSIONS
Longer TV/DVD exposure time at age 1 was associated with the risk of chronic constipation at age 3. Excessive screen exposure may need to be avoided from infancy to decrease the risk of chronic constipation in later years.
Humans
;
Constipation/etiology*
;
Male
;
Female
;
Japan/epidemiology*
;
Television/statistics & numerical data*
;
Child, Preschool
;
Infant
;
Screen Time
;
Prospective Studies
;
Risk Factors
;
Chronic Disease/epidemiology*
;
Prevalence
5.Low Ki-67 labeling index is a clinically useful predictive factor for recurrence-free survival in patients with papillary thyroid carcinoma
Takashi MASUI ; Katsunari YANE ; Ichiro OTA ; Kennichi KAKUDO ; Tomoko WAKASA ; Satoru KOIKE ; Hirotaka KINUGAWA ; Ryuji YASUMATSU ; Tadashi KITAHARA
Journal of Pathology and Translational Medicine 2025;59(2):115-124
We report a new risk stratification of invasive stage papillary thyroid carcinomas (PTCs) by combining invasive status, using extrathyroid invasion (Ex) status, and tumor growth speed using the Ki-67 labeling index (LI). Methods: We examined tumor recurrence in 167 patients with PTC who were surgically treated at the Kindai University Nara Hospital between 2010 and 2022. The patients were classified according to the degree of invasion [negative (Ex0) or positive (Ex1, Ex2, and Ex3)] and tumor growth speed expressed with Ki-67 LI, as low (<5%) or high (>5%). This study confirmed previous findings that the disease-free survival (DFS) rate in PTCs significantly differed between patients with a high and low Ki-67 index. Results: When combining Ex status (negative or positive) and Ki-67 proliferation status (low or high), the DFS rate of invasion in the negative, low Ki-67 LI group was only 1.1%, while that of invasion in the positive, high Ki-67 LI was 44.1%. This study reports for the first time that recurrence risks can be stratified accurately when combining carcinoma’s essential two features of extrathyroid invasion status and tumor growth speed. Conclusions: We believe the evidence for low tumor recurrence risk may contribute to use of more conservative treatment options for invasive-stage PTCs and help alleviate patient anxiety about tumor recurrence and death.
6.A Case of Cardiac Papillary Fibroelastoma Located in Left Atrial Appendage and Cerebral Embolism
Kyohei KAWASAKI ; Takuya MIYAZAKI ; Minoru YOSHIDA ; Tadashi ISOMURA
Japanese Journal of Cardiovascular Surgery 2025;54(2):61-63
Cardiac papillary fibroelastoma (PFE) is a benign cardiac tumor that mainly occurs in the valve leaflets of the left heart. The patient was a 72-year-old man diagnosed with cerebral infarction. Contrast-enhanced computed tomography and transesophageal echocardiography revealed a 12-mm mass in the left atrial appendage (LAA), and we decided to undergo emergency cardiac tumor resection due to embolism onset. Postoperative pathological examination revealed an extremely rare cardiac PFE originating in the LAA.
7.A Case Series of Post-COVID Conditions with Fatigability Treated with Saikokeishito
Rie ONO ; Shin TAKAYAMA ; Natsumi SAITO ; Ryutaro ARITA ; Akiko KIKUCHI ; Kota ISHIZAWA ; Takeshi KANNO ; Akito SUGAWARA ; Minoru OHSAWA ; Michiaki ABE ; Ko ONODEARA ; Tetsuya AKAISHI ; Tadashi ISHII
An Official Journal of the Japan Primary Care Association 2024;47(2):49-55
Fatigue is a common symptom of long COVID. Fatigue can majorly disrupt daily life and be challenging to treat. Herein, we describe the effect of saikokeishito, a Kampo medicine, on fatigue in patients with long COVID.Between October 2020 and March 2023, we prescribed saikokeishito to 22 patients with long COVID in the general medicine outpatient department of our hospital. Among them, seven patients (age: 15-58 years, two females) had fatigue, a previously confirmed diagnosis of COVID-19, and no concomitant use of other Kampo formulas. We compared their condition at the start of saikokeishito administration to that 3 months later. Five patients had a slight fever, and four had inflammatory findings on blood tests. Within 3 months, all patients had a 20% or greater reduction in fatigue on a visual analogue scale. Six patients had a 20% or greater increase in health-related QOL and were able to return to society. On the other hand, one patient required a transition to an alternative medication, and one patient's follow-up was prematurely discontinued. Fatigue after COVID-19 may be improved by saikokeishito, especially for the treatment of patients with slight fever or inflammatory findings.
8.Descriptive epidemiological study of sports injuries in college athletes by competition characteristics
Makoto OKADA ; Tadashi NAKAZAWA ; Shigeki IZUMI
Japanese Journal of Physical Fitness and Sports Medicine 2024;73(3):111-121
We conducted a large-scale survey of sports injuries in college athletes. This study aimed to investigate trends in sports injuries and disabilities among college athletes by gender, discipline, individual and team competition, contact and noncontact competition, and other competition characteristics. A total of 1,137 college athletes (786 men and 351 women) were surveyed. A questionnaire survey was conducted to determine the club, regularity, and history of sports injuries and disorders (presence/absence, severity, time of injury, site of injury, diagnosis, and recurrence). The prevalence of sports injuries among college athletes was 59.7%. The prevalence was 74.7% in team and contact sports, with ankle and knee ligament injuries accounting for most injuries. The second highest prevalence rate was 66.7% for individual/contact sports, where martial arts-type sports are common. Elbow injuries were common due to the characteristics of martial arts-type sports. Chronic sports injuries of the ankle were common in noncontact/individual sports, and shoulder joint disorders were common in noncontact/team sports. Different trends in sports injuries and disabilities were found depending on the sport characteristics. Considering the characteristics of the sports is necessary to prevent sports injuries and disabilities.
9.Tele-education by an orthopedic specialist increased the confidence in orthopedics of a general practitioner at a rural solo-practice clinic
Takashi AKIMOTO ; Tadashi KOBAYASHI ; Hiroki MAITA ; Takahiro HIRANO
Journal of Rural Medicine 2024;19(1):40-43
Objective: General practitioners in rural clinics are required to deal with musculoskeletal problems, but they often lack the confidence. We aim to confirm changes in their confidence in orthopedic practices after using tele-education.Materials and Methods: We conducted tele-education in orthopedic practices from June 1, 2022, to November 30, 2022. Using a teleconference system, the first author, an orthopedic specialist, provided tele-education training to an independent general practitioner in a rural clinic. We adopted a 7-point Likert scale to assess the general practitioner’s confidence levels. In pre- and post-research, the counts and confidence levels in the scale were assessed for 18 types of orthopedic practices each month. Furthermore, we interviewed the general practitioner to examine the factors influencing their confidence.Results: The confidence levels increased for all measurement items. The most experienced orthopedic practice was “Advising on daily care for musculoskeletal problems”, with confidence levels increasing from 3 to 6. The least experienced orthopedic practice was “Manipulative reduction of radial head subluxation”, with confidence levels increasing from 4 to 5. The factors that influenced the change in confidence levels were regular feedback and unrestricted availability of consultations.Conclusion: Tele-education in orthopedics may enhance general practitioners’ confidence in orthopedic practices.
10.The neutrophil-osteogenic cell axis promotes bone destruction in periodontitis
Ando YUTARO ; Tsukasaki MASAYUKI ; Huynh Cong-Nhat NAM ; Zang SHIZAO ; Yan MINGLU ; Muro RYUNOSUKE ; Nakamura KAZUTAKA ; Komagamine MASATSUGU ; Komatsu NORIKO ; Okamoto KAZUO ; Nakano KENTA ; Okamura TADASHI ; Yamaguchi AKIRA ; Ishihara KAZUYUKI ; Takayanagi HIROSHI
International Journal of Oral Science 2024;16(1):154-162
The immune-stromal cell interactions play a key role in health and diseases.In periodontitis,the most prevalent infectious disease in humans,immune cells accumulate in the oral mucosa and promote bone destruction by inducing receptor activator of nuclear factor-κB ligand(RANKL)expression in osteogenic cells such as osteoblasts and periodontal ligament cells.However,the detailed mechanism underlying immune-bone cell interactions in periodontitis is not fully understood.Here,we performed single-cell RNA-sequencing analysis on mouse periodontal lesions and showed that neutrophil-osteogenic cell crosstalk is involved in periodontitis-induced bone loss.The periodontal lesions displayed marked infiltration of neutrophils,and in silico analyses suggested that the neutrophils interacted with osteogenic cells through cytokine production.Among the cytokines expressed in the periodontal neutrophils,oncostatin M(OSM)potently induced RANKL expression in the primary osteoblasts,and deletion of the OSM receptor in osteogenic cells significantly ameliorated periodontitis-induced bone loss.Epigenomic data analyses identified the OSM-regulated RANKL enhancer region in osteogenic cells,and mice lacking this enhancer showed decreased periodontal bone loss while maintaining physiological bone metabolism.These findings shed light on the role of neutrophils in bone regulation during bacterial infection,highlighting the novel mechanism underlying osteoimmune crosstalk.


Result Analysis
Print
Save
E-mail