1.Peritoneal dissemination of high-grade serous ovarian cancer: pivotal roles of chromosomal instability and epigenetic dynamics
Ikuo KONISHI ; Kaoru ABIKO ; Takuma HAYASHI ; Koji YAMANOI ; Ryusuke MURAKAMI ; Ken YAMAGUCHI ; Junzo HAMANISHI ; Tsukasa BABA ; Noriomi MATSUMURA ; Masaki MANDAI ;
Journal of Gynecologic Oncology 2022;33(5):e83-
Epithelial ovarian cancer remains the lethal gynecological malignancy in women. The representative histotype is high-grade serous carcinoma (HGSC), and most patients with HGSC present at advanced stages with peritoneal dissemination. Since the peritoneal dissemination is the most important factor for poor prognosis of the patients, complete exploration for its molecular mechanisms is mandatory. In this narrative review, being based on the clinical, pathologic, and genomic findings of HGSC, chromosomal instability and epigenetic dynamics have been discussed as the potential drivers for cancer development in the fallopian tube, acquisition of cancer stem cell (CSC)-like properties, and peritoneal metastasis of HGSC. The natural history of carcinogenesis with clonal evolution, and adaptation to microenvironment of peritoneal dissemination of HGSC should be targeted in the novel development of strategies for prevention, early detection, and precision treatment for patients with HGSC.
2.A Survey of Health Hazard Cases Caused by Health-Related Products and Pharmacists’ Roles
Saori TESHIGAWARA ; Yoshiteru MOTEGI ; Shinya ABE ; Hikaru MATSUI ; Hiroshi YAMAGUCHI ; Shouko YOSHIMACHI ; Kazuhiko NOMURA ; Akiko TOMIZAWA ; Koji NARUI
Japanese Journal of Drug Informatics 2021;23(2):61-71
Objective: There have been reports of health hazards caused by medical devices, cosmetics, quasi-drugs, daily necessities, hygiene products, etc. (health-related products) sold in pharmacies and drugstores. However, the role pharmacists play in dealing with the health hazards caused by health-related products has not been clarified. Therefore, we conducted a survey on the cases of health hazards related to health-related products and the views of pharmacists.Methods: A questionnaire was administered anonymously by email to 601 pharmacists working in community pharmacies or drugstores between December 11 and 20, 2019.Results: The number of valid responses was 585. The breakdown of health hazard cases where pharmacists counseled customers were 60 for medical devices, 31 for cosmetics, 18 for quasi-drugs, 9 for hygiene products, and 20 for daily necessities and others. Of those 138 cases, 19 cases of medical devices were estimated to have an intermediate risk as a health hazard, and the other 119 cases were all classified as low. Of the cases that the pharmacists were not approached for help, but were aware of, 57 were medical devices (21 high, 31 intermediate, 5 low), 44 were cosmetics (12 intermediate, 32 low), 12 were quasi-drugs (7 intermediate, 5 low), 7 were hygiene products (7 low), and 64 were daily necessities and others (26 high, 34 intermediate, 4 low). With regard to health-related products, 95% of the respondents indicated that they had responded to customer questions with advice.Conclusion: Our results show that there are various cases that could develop into health hazards due to health-related products, and most respondents felt a need to alert the public. As such, pharmacists and other staffs in drugstores will continue to provide health support functions to their customers by advising them on not only pharmaceuticals but also these health-related products.
3.Characteristics of the Lower Limb Skeletal Muscle Stiffness in Healthy Individuals : Analysis of Muscle Stiffness with Ultrasonographic Elastography
Koji Kawamichi ; Tetsuo Yamaguchi ; Suzuko Miyawaki ; Kazuhisa Okamoto ; Naoko Uemura ; Shinjiro Takata
The Japanese Journal of Rehabilitation Medicine 2017;54(10):800-807
Objective:To investigate the lower limb skeletal muscle stiffness in healthy individuals.
Methods:Using ultrasonographic elastography, we measured the degree of stiffness of the rectus femoris and medial head of the gastrocnemius in healthy individuals and investigated the relationships between muscle stiffness and thickness, a quantitative measure of muscles, and between muscle stiffness and brightness, a qualitative measure of muscles. Furthermore, relationships between muscle stiffness and age, body weight, and body mass index (BMI) were also studied.
Results:Rectus femoris stiffness was positively correlated with muscle thickness. Rectus femoris stiffness had a weak negative correlation with muscle brightness and a weak positive correlation with body weight and BMI. Stiffness of the medial head of the gastrocnemius showed no correlation with any of the study variables. Muscle stiffness did not correlate with age in either of the muscles. No sex-related difference was found in the degree of muscle stiffness.
Conclusion:Although rectus femoris stiffness was associated with muscle thickness and brightness, these relationships were not observed for muscle stiffness of the medial head of the gastrocnemius. The data suggested that rectus femoris stiffness reflects the quantitative and qualitative states of the muscle, and the presence of such relationships may depend on the location of the muscle.
4.Perianal and Vulvar Extramammary Paget Disease: A Report of Six Cases and Mapping Biopsy of the Anal Canal.
Yuzo NAGAI ; Sinsuke KAZAMA ; Daisuke YAMADA ; Takuya MIYAGAWA ; Koji MURONO ; Koji YASUDA ; Takeshi NISHIKAWA ; Toshiaki TANAKA ; Tomomichi KIYOMATSU ; Keisuke HATA ; Kazushige KAWAI ; Yuri MASUI ; Hiroaki NOZAWA ; Hironori YAMAGUCHI ; Soichiro ISHIHARA ; Takafumi KADONO ; Toshiaki WATANABE
Annals of Dermatology 2016;28(5):624-628
Treatment of perianal and vulvar extramammary Paget disease (EMPD), rare intraepithelial malignancies, is often challenging because of its potential to spread into the anal canal. However, there is still no consensus regarding the optimal resection margin within the anal canal. Between 2004 and 2014, six patients (three with perianal EMPD and three with vulvar EMPD) in which the spread of Paget cells into the anal canal was highly suspected were referred to our department. To evaluate the disease extent within the anal canal, preoperative mapping biopsy of the anal canal was performed in five out of six patients. Two patients were positive for Paget cells within the anal canal (one at the dentate line and the other at 0.5 cm above the dentate line), whereas in three patients, Paget cell were present only in the skin of the anal verge. Using 1 cm margin within the anal canal from the positive biopsy sites, we performed anal-preserving wide local excision (WLE), and negative resection margins within the anal canal were confirmed in all five patients. The remaining one patient with perianal EMPD did not undergo mapping biopsy of the anal canal because preoperative colonoscopy revealed that the Paget cells had spread into the lower rectum. Therefore, WLE with abdominoperineal resection was performed. During the median follow-up period of 37.3 months, no local recurrence was observed in all patients. Our small case series suggest the usefulness of mapping biopsy of the anal canal for the treatment of perianal and vulvar EMPD.
Anal Canal*
;
Biopsy*
;
Colonoscopy
;
Consensus
;
Follow-Up Studies
;
Humans
;
Paget Disease, Extramammary*
;
Rectum
;
Recurrence
;
Skin
5.Perianal and Vulvar Extramammary Paget Disease: A Report of Six Cases and Mapping Biopsy of the Anal Canal.
Yuzo NAGAI ; Sinsuke KAZAMA ; Daisuke YAMADA ; Takuya MIYAGAWA ; Koji MURONO ; Koji YASUDA ; Takeshi NISHIKAWA ; Toshiaki TANAKA ; Tomomichi KIYOMATSU ; Keisuke HATA ; Kazushige KAWAI ; Yuri MASUI ; Hiroaki NOZAWA ; Hironori YAMAGUCHI ; Soichiro ISHIHARA ; Takafumi KADONO ; Toshiaki WATANABE
Annals of Dermatology 2016;28(5):624-628
Treatment of perianal and vulvar extramammary Paget disease (EMPD), rare intraepithelial malignancies, is often challenging because of its potential to spread into the anal canal. However, there is still no consensus regarding the optimal resection margin within the anal canal. Between 2004 and 2014, six patients (three with perianal EMPD and three with vulvar EMPD) in which the spread of Paget cells into the anal canal was highly suspected were referred to our department. To evaluate the disease extent within the anal canal, preoperative mapping biopsy of the anal canal was performed in five out of six patients. Two patients were positive for Paget cells within the anal canal (one at the dentate line and the other at 0.5 cm above the dentate line), whereas in three patients, Paget cell were present only in the skin of the anal verge. Using 1 cm margin within the anal canal from the positive biopsy sites, we performed anal-preserving wide local excision (WLE), and negative resection margins within the anal canal were confirmed in all five patients. The remaining one patient with perianal EMPD did not undergo mapping biopsy of the anal canal because preoperative colonoscopy revealed that the Paget cells had spread into the lower rectum. Therefore, WLE with abdominoperineal resection was performed. During the median follow-up period of 37.3 months, no local recurrence was observed in all patients. Our small case series suggest the usefulness of mapping biopsy of the anal canal for the treatment of perianal and vulvar EMPD.
Anal Canal*
;
Biopsy*
;
Colonoscopy
;
Consensus
;
Follow-Up Studies
;
Humans
;
Paget Disease, Extramammary*
;
Rectum
;
Recurrence
;
Skin
6.The relationship between health-related quality of life measures, daily rhythm of oral temperature and lifestyle in young men
Kazuki Nishimura ; Hidetaka Yamaguchi ; Yuka Nose ; Akira Yoshioka ; Koji Nagasaki ; Sho Onodera ; Noboru Takamoto
Japanese Journal of Physical Fitness and Sports Medicine 2016;65(4):431-440
The purpose of the present study was to indicate the relationship between health-related quality of life (HRQOL) measures, the daily rhythm of oral temperature (OT), and lifestyle. Five-hundred young men volunteered to participate in this study. Their OT, measured using a digital thermometer, was recorded every 2h from the time they woke up to the time they went to sleep for 1 week. The daily rhythm of OT was calculated as a quadratic function using the 1-week data. The HRQOL was measured using the Short-Form 36-Item Health Survey version 2 (SF-36v2). The participants were divided into 3 groups: a high-value group (HG) with ≥ 55 points of each summary score and each subscale score, a middle-value group (MG) with score > 45 and < 55 points, and a low-value group (LG) with score ≤ 45 points. Lifestyle was assessed in terms of eating habits, sleeping and exercise, and the presence of unidentified complaints. At the mental component summary, the OT at the time of waking up and the peak OT in the HG were significantly higher than those in the LG. At the physical and mental component summary, lifestyle in the HG was more favorable. These data suggest that the daily rhythms of OT may reflect the mental health status of an individual. The entraining factors in circadian variation might play a role in improving mental health and reducing unidentified complaints. In conclusion, there appears to be an association between mental health status, lifestyle, and daily rhythms of OT.
7.Predictive Factors for Efficacy of Dipeptidyl Peptidase-4 Inhibitors in Patients with Type 2 Diabetes Mellitus.
Shusuke YAGI ; Ken Ichi AIHARA ; Masashi AKAIKE ; Daiju FUKUDA ; Hotimah Masdan SALIM ; Masayoshi ISHIDA ; Tomomi MATSUURA ; Takayuki ISE ; Koji YAMAGUCHI ; Takashi IWASE ; Hirotsugu YAMADA ; Takeshi SOEKI ; Tetsuzo WAKATSUKI ; Michio SHIMABUKURO ; Toshio MATSUMOTO ; Masataka SATA
Diabetes & Metabolism Journal 2015;39(4):342-347
BACKGROUND: Predictive factors for the efficacy of dipeptidyl peptidase-4 (DPP-4) inhibitors for lowering glycosylated hemoglobin (HbA1c) remain unclear in patients with type 2 diabetes mellitus. The aim of this study is therefore to clarify predictive factors of the efficacy of DPP-4 inhibitors for lowering HbA1c after 12 months of treatment. METHODS: A total of 191 consecutive type 2 diabetic patients (male sex 55%, mean age, 68.3+/-35.8 years), who had been treated with DPP-4 inhibitors for 12 months, were enrolled in this study and evaluated retrospectively. RESULTS: After 12 months of DPP-4 inhibitor treatment, random blood glucose level, and HbA1c level, decreased from 167+/-63 to 151+/-49 mg/dL (P<0.01), and from 7.5%+/-1.3% to 6.9%+/-0.9% (P<0.01) respectively, without severe side effects. Multiple regression analysis showed that predictors of DPP-4 inhibitor treatment efficacy in lowering HbA1c level after 12 months were a decrease in HbA1c level after 3 months of treatment, a high baseline HbA1c level, a low baseline body mass index, and the absence of coronary artery disease. CONCLUSION: Most suitable candidates for treatment with DPP-4 inhibitors are diabetics who are not obese and do not have coronary artery disease. In addition, long-term efficacy of DPP-4 inhibitors can be predicted by decrement of HbA1c after 3 months of treatment.
Blood Glucose
;
Body Mass Index
;
Coronary Artery Disease
;
Diabetes Mellitus
;
Diabetes Mellitus, Type 2*
;
Dipeptidyl-Peptidase IV Inhibitors
;
Hemoglobin A, Glycosylated
;
Humans
;
Retrospective Studies
;
Treatment Outcome
8.Retrospective surveillance of metabolic parameters affecting reproductive performance of Japanese Black breeding cows.
Urara WATANABE ; Mitsuhiro TAKAGI ; Osamu YAMATO ; Takeshige OTOI ; Koji OKAMOTO
Journal of Veterinary Science 2014;15(2):283-288
This retrospective study was conducted to confirm the relationship between pre- and postpartum metabolic parameters and postpartum reproductive performance and to clarify seasonal characteristics of the metabolic parameters by using our metabolic profile test (MPT) database of Japanese Black breeding herds. In evaluation 1, MPT databases of blood samples from multiparous cows collected prepartum and postpartum were divided into two groups according to calving interval, and each MPT parameter was compared. In evaluation 2, the same MPT databases used in evaluation 1 were divided into two groups according to the sampling period. Significant differences were found in the prepartal total protein and postpartal gamma-glutamyltransferase in evaluation 1. In evaluation 2, significant differences were found in the prepartal and postpartal total protein, albumin/globulin ratio, and glucose. Clear seasonal differences in MPT results emphasized the usefulness of the MPT in breeding cattle herds fed home-pasture roughage and suggest that unsatisfactory reproductive performance during hot periods reflects inadequate nutritional content of the diet and possible reduced feed intake due to heat stress.
Animals
;
Blood Proteins/analysis
;
Cattle/*physiology
;
Diet/veterinary
;
Dietary Fiber/analysis
;
Female
;
Heat Stress Disorders
;
*Metabolome
;
Postpartum Period
;
*Reproduction
;
Retrospective Studies
;
Seasons
9.Luteal lifespan and fertility after estrus synchronization in goats.
Lu Meng CHAO ; Koji TAKAYAMA ; Yoshitaka NAKANISHI ; Katsumi HAMANA ; Mitsuhiro TAKAGI ; Chikara KUBOTA ; Toshiyuki KOJIMA
Journal of Veterinary Science 2008;9(1):95-101
The present experiment aims to examine the efficiency of estrus synchronization using progesterone and equine chorionic gonadotrophin (eCG) and to look at luteal function. During the non-breeding and breeding season, 5 adult female Korean native goats were injected intramuscularly with 2.5 ml of physiological saline as the control. A progesterone impregnated intravaginal sponge was then kept in the same goats for 10 days followed, after a week, by an intramuscular injection of 500 IU eCG. Five adult female Nubian goats were mated with a fertile buck during the non-breeding season. During the non-breeding season 2 of the 5 goats showed a normal estrous cycle (ranging from 18 to 21 days) and 3 a short estrous cycle (ranging from 3 to 6 days). During the breeding season the equivalent figures were 1 and 2. The major axes of the corpus luteum (CL) were measured by means of calipers built into the ultrasonography system, and the concentrations of plasma progesterone (P(4)) were determined by double antibody radioimmunoassay. The mean major axes of the CL in goats showing the short cycle (6.1 +/- 0.5 mm) was significantly smaller than in those showing the normal cycle (8.9 +/- 0.5 mm; p < 0.01) and also the value of P4 in goats showing the short cycle (4.2 +/- 2.1 ng/ml) was significantly lower than for those showing the normal cycle (10.3 +/- 4.3 ng/ml; p < 0.05) at day 3 following ovulation. Three out of 5 Nubian goats became pregnant but only one goat carried to full term. The present experiment indicated that a combination of progesterone and eCG was effective in inducing estrus, although it resulted in a high incidence of short luteal lifespan. The low kidding rate and high incidence of embryonic loss may be due to the instability of the luteal lifespan.
Animals
;
Chorionic Gonadotropin/*pharmacology
;
Corpus Luteum/*drug effects/*physiology
;
Estrus Synchronization/*drug effects/physiology
;
Female
;
Fertility/*drug effects
;
Fertility Agents, Female/pharmacology
;
Goats/*physiology
;
Horses
;
Pregnancy
;
Progesterone/blood/*pharmacology
10.Long Term Effects of 19 mm Bileaflet Aortic Valve Prosthesis
Satoshi Ito ; Koji Kawahito ; Masashi Tanaka ; Kenichiro Noguchi ; Atushi Yamaguchi ; Seiichiro Murata ; Koichi Adachi ; Hideo Adachi ; Takashi Ino
Japanese Journal of Cardiovascular Surgery 2005;34(3):167-171
We reviewed our experience with 19mm size aortic valve prostheses for cases with small aortic annulus. Forty-six patients operated on between 1990 and Septembr 2002 were enrolled in this study. Clinical late assessment was performed to evaluate the incidence of valverelated complications, residual transprosthetic gradient, left ventricular mass index (LVMI), and NYHA functional class. Postoperative echocardiography was performed to evaluate hemodynamic performance of the prostheses. Follow up was 1 to 12.7 years (mean 5.3±3.6). There was no hospital mortality (0%). Actuarial survival rates at 10 years were 81.4±1.5%. The late postoperative peak gradient was 25±11mmHg. LVMI was significantly reduced in late phase. NYHA functional class significantly improved in the late period. Although 19mm size aortic valve prosthesis remains small transprosthetic pressure gradient, LVMI significantly reduced and patient activity was satisfactory maintained in the late period.


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