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Ohsuga T, Egawa M, Takahashi Y, Ikeda Y, Tsuyuki K, Kanatani K, Niwa F, Hirabayashi K, Nakayama T, Mandai M. Association between low MCV in early pregnancy and perinatal mental health in the Japan Environment and Children's Study and the possible effect of iron deficiency. J Affect Disord 2024; 356:34-40. [PMID: 38583601 DOI: 10.1016/j.jad.2024.04.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 03/29/2024] [Accepted: 04/03/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Postpartum anemia and iron deficiency are associated with postpartum depression. This study investigated the association between a low mean corpuscular volume (MCV) without anemia (which implies early-stage iron deficiency) in early pregnancy and perinatal mental health outcomes. METHODS The fixed data from the Japan Environment and Children's Study (JECS), a Japanese nationwide birth cohort, were used. Perinatal mental health was assessed using the Kessler 6-item psychological distress scale (K6) in mid-pregnancy and the Edinburgh Postnatal Depression Scale (EPDS) at 1- and 6-months postpartum. RESULTS Among the 3635 women with MCVs <85 fL in early pregnancy, the proportions of women with K6 scores ≥13 in mid-pregnancy and EPDS scores ≥9 at 1- and 6-months postpartum were 2.7 %, 12.8 %, and 9.9 %, respectively, compared with the 33,242 women with MCVs ≥85 fL at 1.9 %, 11.9 %, and 9.0 %, respectively. Multivariate logistic regression models showed that an MCV <85 in early pregnancy was associated with a K6 score ≥ 13 in mid-pregnancy and an EPDS score ≥ 9 at 1- and 6-months postpartum (adjusted odds ratio (95 % confidence interval): 1.48 (1.16-1.87), 1.14 (1.01-1.28), and 1.09 (0.95-1.24), respectively). LIMITATIONS Low MCV values do not necessarily represent iron deficiency. Ferritin, currently the best indicator of iron deficiency, was not measured in the JECS. CONCLUSIONS This study results suggest that a low MCV without anemia in early pregnancy is associated with a slightly increased risk of perinatal mental health deterioration.
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Affiliation(s)
- T Ohsuga
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan; Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - M Egawa
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Y Takahashi
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan.
| | - Y Ikeda
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan; Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - K Tsuyuki
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Kanatani
- Kyoto Unit Centre for Japan Environment and Children's Study, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - F Niwa
- Kyoto Unit Centre for Japan Environment and Children's Study, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - K Hirabayashi
- Kyoto Unit Centre for Japan Environment and Children's Study, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan; Kyoto Unit Centre for Japan Environment and Children's Study, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - M Mandai
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Inayama Y, Mizuno K, Egawa M, Yamaguchi K, Hamanishi J, Takeuchi M, Mandai M, Kawakami K. Real-world practice of estrogen and progestogen prescriptions in menopausal women in Japan: A descriptive study using a Japanese claims database. J Obstet Gynaecol Res 2023; 49:2952-2961. [PMID: 37752731 DOI: 10.1111/jog.15795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/10/2023] [Indexed: 09/28/2023]
Abstract
AIM This study aimed to investigate the real-world clinical practice of estrogen and progestogen prescriptions for menopausal women. METHODS Using a health care database in Japan, we conducted a cross-sectional study on estrogen prescriptions and detailed analyses of newly initiated estrogens and concomitant prescriptions of progestogens. Data between January 2005 and December 2021 were analyzed. RESULTS In 2021, the proportion of women aged 45-49 years receiving estrogens was 25.8 [95% confidence interval (CI): 25.3, 26.3] per 1000 women, while it was 6.4 [95% CI: 6.0, 6.7] for those aged ≥60 years. The prescription of estrogens gradually increased in women aged 50-59 years after 2009. In women without a history of hysterectomy, transdermal estradiol was the primary form of estrogens prescribed for ≥180 days, in women aged <60 years. The proportion of transdermal estradiol gradually increased each year, whereas that of oral-conjugated equine estrogens decreased. Among progestogen, the proportions of dydrogesterone and transdermal norethisterone acetate increased over time, while that of medroxyprogesterone acetate decreased. Approximately 30% of women prescribed estrogens for ≥180 days did not initiate progestogen concurrently. In women undergoing hysterectomy, progestogen was not initiated in >90% of cases, and transdermal estradiol was prescribed in approximately 80% of cases in 2021. CONCLUSIONS This study reviewed the prescription of estrogens in menopausal women in Japan. A considerable number of women with a uterus are receiving estrogen therapy rather than estrogen-progestogen therapy (EPT), despite the guidelines recommending the use of EPT in these women.
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Affiliation(s)
- Yoshihide Inayama
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Kayoko Mizuno
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Miho Egawa
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ken Yamaguchi
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Junzo Hamanishi
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masato Takeuchi
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Masaki Mandai
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Koji Kawakami
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
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Ikeda Y, Egawa M, Ohsuga T, Mandai M, Takahashi Y, Nakayama T. Relationship of Ethinylestradiol/Drospirenone Prescription on Work Productivity and Activity Impairment Among Women With Menstruation-Related Symptoms: A Multicenter Prospective Observational Study. J Occup Environ Med 2023; 65:e491-e495. [PMID: 37130820 DOI: 10.1097/jom.0000000000002871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
OBJECTIVE The aim of the study is to examine changes in work productivity and daily activity impairment among women by starting ethinylestradiol (EE)/drospirenone (DRSP) for perimenstrual symptoms. METHODS Participants were women who were newly prescribed EE/DRSP at 25 gynecological clinics in Japan. Eligible participants recorded daily intake of EE/DRSP and the Work Productivity Activity Impairment Questionnaire General Health every 2 weeks for 3 months by smartphone app. A linear mixed-effects model was used to see changes in work productivity impairment and activity impairment relative to baseline. RESULTS A total of 222 participants were eligible. Work productivity impairment recovered by 20.0% (95% confidence interval, 14.1%-26.0%) at 1 m and maintained for 2 months. Activity impairment recovered by 20.1% (95% confidence interval, 15.5%-24.7%) at 1 m and thereafter. CONCLUSIONS Improvements in work productivity and daily activities were observed at 1 m after EE/DRSP initiation, with a sustained effect thereafter.
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Affiliation(s)
- Yumie Ikeda
- From the Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan (Y.I., Y.T., TN); and Department of Gynecology and Obstetrics, Kyoto University Hospital, Kyoto, Japan (Y.I., M.E., T.O., M.M.)
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Inayama Y, Mizuno K, Yamaguchi K, Hamanishi J, Takeuchi M, Egawa M, Mandai M, Kawakami K. Hormone replacement therapy and cancer risks in perimenopausal women: A retrospective cohort study using a Japanese claims database. J Obstet Gynaecol Res 2023. [PMID: 37029559 DOI: 10.1111/jog.15653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 03/27/2023] [Indexed: 04/09/2023]
Abstract
AIM Hormone replacement therapy (HRT) relieves menopausal syndromes but concerns regarding certain cancer risks remain. This study aimed to investigate cancer risks in perimenopausal women using HRT. METHODS Using a health care database in Japan, we compared breast cancer and other cancer risks in perimenopausal women who started HRT between January 2011 and October 2021 at age 45-54 years with that of women who did not use HRT. Women in the control group were selected by 1:4 exact matching on birth year, and followed from the same index time as their counterparts. RESULTS Data from 12 207 women in the exposure group and 48 828 age-matched women in the control group were analyzed. The median HRT duration was 16.1 (interquartile range, 9.9-28.0) months. Breast cancer risk was lower in the HRT group (adjusted hazard ratio [HR], 0.67; 95% confidence interval [CI], 0.54-0.82). When stratified by age, breast cancer risk was lower in the HRT group who started HRT at age 45-49 years (adjusted HR, 0.54; 95% CI, 0.40-0.72). Estrogen-major HRT accounted for approximately one-third of HRT and uterine corpus cancer risk was increased in estrogen-major HRT (adjusted HR, 2.44; 95% CI, 1.56-3.81). CONCLUSIONS Breast cancer risk in women starting HRT between 45 and 49 years is lower than that in the average population; this finding might be susceptible to unmeasured factors such as early menopause among HRT recipients. Unopposed estrogen therapy accounts for considerable proportion of HRT in Japan and it increases uterine corpus cancer.
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Affiliation(s)
- Yoshihide Inayama
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Kayoko Mizuno
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Ken Yamaguchi
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Junzo Hamanishi
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masato Takeuchi
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Miho Egawa
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masaki Mandai
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Koji Kawakami
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
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Inayama Y, Mizuno K, Yamaguchi K, Hamanishi J, Takeuchi M, Egawa M, Mandai M, Kawakami K. Real-world practice of estrogen therapy after surgery for endometrial cancer: a descriptive study using a Japanese claims database. Int J Clin Oncol 2023; 28:445-453. [PMID: 36598591 DOI: 10.1007/s10147-022-02289-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Accepted: 12/27/2022] [Indexed: 01/05/2023]
Abstract
BACKGROUND Estrogen therapy (ET) plays a key role in maintaining the post-surgical quality of life of patients with endometrial cancer. This study investigated the reality of the use of ET after endometrial cancer surgery in Japan. METHODS Using a healthcare database in Japan, patients who underwent surgery for endometrial cancer between the ages of 40 and 59 years from January 2006 to March 2021 were included. The cumulative prescriptions of ET after endometrial cancer surgeries in patients who had received chemotherapy or radiation therapy (adj-group) and those who did not (non-adj-group) was estimated using the Kaplan-Meier method. RESULTS Of the 1475 patients, 115 received ET, among whom transdermal estradiol was initiated in 100 (87.0%) individuals. The cumulative proportions of ET prescription 24 months after surgery [95% confidence intervals (CIs)] were 0.088 [0.072, 0.11] in the non-adj-group and 0.058 [0.040, 0.084] in the adj-group. The cumulative proportion [95% CI] of women who received ET at 24 months after surgeries decreased with increasing age, ranging from 0.29 [0.21, 0.38] in the 40‒44 years old to 0.009 [0.002, 0.034] in the 55‒59 years old women in the non-adj-group and from 0.17 [0.094, 0.31] in the 40‒44 years old to 0 in the 55‒59 years old women in the adj-group. CONCLUSION The present study shows that ET after endometrial cancer surgery may be underused, even in women who underwent surgery between 40 and 44 years of age and without adjuvant therapy.
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Affiliation(s)
- Yoshihide Inayama
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto, 606-8501, Japan
| | - Kayoko Mizuno
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto, 606-8501, Japan
| | - Ken Yamaguchi
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Junzo Hamanishi
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masato Takeuchi
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto, 606-8501, Japan
| | - Miho Egawa
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masaki Mandai
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Koji Kawakami
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida-Konoe-Cho, Sakyo-Ku, Kyoto, 606-8501, Japan.
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Higashiyama N, Yamaguchi K, Yamamoto Y, Ueda A, Inayama Y, Egawa M, Yamanoi K, Taki M, Ukita M, Hosoe Y, Horie A, Hamanishi J, Mandai M. Development of healthy lifestyle consciousness index for gynecological cancer patients. Support Care Cancer 2022; 30:7569-7574. [PMID: 35674795 PMCID: PMC9385809 DOI: 10.1007/s00520-022-07179-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 05/25/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Healthy lifestyle is related to quality of life (QOL) after cancer diagnosis and prognosis. However, there are few reports on patients conscious of healthy lifestyle and patients requiring medical providers' attention regarding healthy lifestyle. We aimed to develop a healthy lifestyle consciousness index (HLCI) for cancer patients and evaluated its validity in gynecological cancer patients. METHODS The HLCI was designed to assess degree of healthy lifestyle consciousness, including items regarding "diet," "exercise," "body weight," and "sleep." Exploratory factor analysis was performed for dimensionality of the scale; Cronbach's alpha was calculated to assess internal-consistency reliability. For criterion-based validity, we calculated proportions of stage III/IV gynecological malignancies in those with categorized HLCI scores based on tertiles. Concurrent validity was evaluated between HLCI and other quality of life (QOL) scales including European Organization for Research and Treatment of Cancer QLQ-C30 in limited patients. RESULTS HLCI comprised five 10-point items (0-45); higher values implied improved healthy lifestyle consciousness. Data from 108 gynecological malignancy patients at Kyoto University Hospital were analyzed. The mean age of subjects was 55.8 years; 36.1% of them had uterine corpus cancer; 34.3% were at stage III/IV of gynecological malignancy. The factor analysis revealed HLCI was unidimensional; the reliability based on Cronbach's alpha was satisfactory (0.88). The proportions of stage III/IV gynecological malignancies were 25.7%, 33.3%, and 44.4% in those with first (7-24 points), second (25-30 points), and third (31-46 points) tertiles of HLCI score, respectively. For patients with other QOL scales (n = 25), the mean scores of global health status of QLQ-C30 were 33.3, 50.0, and 83.3 for first, second, and third tertiles of HLCI score, respectively. CONCLUSION HLCI was successfully validated; thus, patients with advanced stages or higher QOL might have strong consciousness regarding healthy lifestyle. HLCI may be useful in precision care for improved lifestyles and QOL.
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Affiliation(s)
- Nozomi Higashiyama
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Ken Yamaguchi
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
| | - Yosuke Yamamoto
- Department of Healthcare Epidemiology, School of Public Health, Graduate School of Medicine, Kyoto University, Yoshida-Konoe-cho, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Akihiko Ueda
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yoshihide Inayama
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Miho Egawa
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Koji Yamanoi
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Mana Taki
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Masayo Ukita
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Yuko Hosoe
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Akihito Horie
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Junzo Hamanishi
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
| | - Masaki Mandai
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan
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Ohsuga T, Egawa M, Kii M, Ikeda Y, Ueda A, Chigusa Y, Mogami H, Mandai M. Association between nonanemic iron deficiency in early pregnancy and perinatal mental health: A retrospective pilot study. J Obstet Gynaecol Res 2022; 48:2730-2737. [DOI: 10.1111/jog.15397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 06/07/2022] [Accepted: 08/01/2022] [Indexed: 11/30/2022]
Affiliation(s)
- Takuma Ohsuga
- Department of Gynecology and Obstetrics Kyoto University Graduate School of Medicine Kyoto Japan
| | - Miho Egawa
- Department of Gynecology and Obstetrics Kyoto University Graduate School of Medicine Kyoto Japan
| | - Misato Kii
- Faculty of Medicine Kyoto University Kyoto Japan
| | - Yumie Ikeda
- Department of Gynecology and Obstetrics Kyoto University Graduate School of Medicine Kyoto Japan
- Department of Health Informatics Kyoto University School of Public Health Kyoto Japan
| | - Akihiko Ueda
- Department of Gynecology and Obstetrics Kyoto University Graduate School of Medicine Kyoto Japan
| | - Yoshitsugu Chigusa
- Department of Gynecology and Obstetrics Kyoto University Graduate School of Medicine Kyoto Japan
| | - Haruta Mogami
- Department of Gynecology and Obstetrics Kyoto University Graduate School of Medicine Kyoto Japan
| | - Masaki Mandai
- Department of Gynecology and Obstetrics Kyoto University Graduate School of Medicine Kyoto Japan
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Ikeda Y, Egawa M, Okamoto K, Mandai M, Takahashi Y, Nakayama T. Correction to: The reliability and validity of the Japanese version of the daily record of severity of problems (J-DRSP) and development of a short-form version (J-DRSP (SF)) to assess symptoms of premenstrual syndrome among Japanese women. Biopsychosoc Med 2021; 15:27. [PMID: 34972535 PMCID: PMC8719403 DOI: 10.1186/s13030-021-00231-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Affiliation(s)
- Yumie Ikeda
- Department of Health Informatics, Kyoto University School of Public Health, Konoecho Yoshida, Sakyo-ku, Kyoto City, 606-8303, Japan.
| | - Miho Egawa
- Department of Obstetrics and Gynecology, Kyoto University Hospital, 54 Kawaramachi Shogoin, Sakyo-ku, Kyoto City, 606-8397, Japan
| | - Kazuya Okamoto
- Department of Medical Informatics, Kyoto University Hospital, 54 Kawaramachi Shogoin, Sakyo-ku, Kyoto City, 606-8397, Japan
| | - Masaki Mandai
- Department of Obstetrics and Gynecology, Kyoto University Hospital, 54 Kawaramachi Shogoin, Sakyo-ku, Kyoto City, 606-8397, Japan
| | - Yoshimitsu Takahashi
- Department of Health Informatics, Kyoto University School of Public Health, Konoecho Yoshida, Sakyo-ku, Kyoto City, 606-8303, Japan
| | - Takeo Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Konoecho Yoshida, Sakyo-ku, Kyoto City, 606-8303, Japan
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Ikeda Y, Egawa M, Okamoto K, Mandai M, Takahashi Y, Nakayama T. The reliability and validity of the Japanese version of the Daily Record of Severity of Problems (J-DRSP) and Development of a Short-Form version (J-DRSP (SF)) to assess symptoms of premenstrual syndrome among Japanese women. Biopsychosoc Med 2021; 15:6. [PMID: 33736660 PMCID: PMC7977312 DOI: 10.1186/s13030-021-00208-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 02/19/2021] [Indexed: 11/19/2022] Open
Abstract
PURPOSE To assess the validity and reliability of the Japanese version of the Daily Record of Severity of Problems (J-DRSP, 24 items) for evaluating symptoms of premenstrual syndrome (PMS), and to develop a short form version of the J-DRSP. METHODS Using the "DRSP-JAPAN" smartphone app, we collected daily J-DRSP records from cycle day - 6 (CD - 6) to CD 10, with CD 1 representing the menstruation onset date. Factorial validity (exploratory factor analysis: EFA, confirmatory factor analysis: CFA) and criterion validity were examined, and test-retest reliability (intraclass correlation: ICC) evaluated. The short-form version of the J-DRSP was developed using classical test theory. RESULTS In total, 304 women participated and 243 recorded symptoms on at least 4 days spanning the week of the luteal phase (CD - 6 to CD 0) and 4 days spanning the week of the follicular phase (CD 4 to CD 10), with CD 0 set as the day before menstruation started. The EFA revealed a two-factor structure. Kaiser-Meyer-Olkin was 0.992, and Bartlett's test of sphericity chi-square was 3653.89 (P < 0.001). However, the model fitness of CFA was found to be suboptimal (comparative fit index (CFI): 0.83, root mean square error of approximation (RMSEA): 0.12). Total scores for J-DRSP and the sum scores for each subscale were higher on CD 0 than on CD 10 (p < 0.001), suggesting validity for some criteria. ICC values for the total J-DRSP score from CD 0 to CD - 1, and between CD 9 to CD 10, were 0.60 (95% CI: 0.48-0.72) and 0.76 (95% CI: 0.69-0.82), respectively. Having eliminated some original items after considering factor loading for each item, we developed an 8-item Short-Form J-DRSP (J-DRSP (SF)) comprising 2 factors (S-Psychological and S-Physical, 4 items for each). CFA showed a better model fit (CFI: 0.99, RMSEA: 0.048), and ICC values in the luteal and follicular phases were 0.61 (95%CI: 0.51-0.68) and 0.70 (95%CI: 0.62-0.77), respectively. CONCLUSION The J-DRSP has moderate to good reliability and a certain level of validity. The 8-item J-DRSP (SF) has a two-factor structure and can be used effectively among Japanese women to assess their PMS symptoms.
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Affiliation(s)
- Yumie Ikeda
- Department of Health Informatics, Kyoto University School of Public Health, Konoecho Yoshida, Sakyo-ku, Kyoto City, 606-8303, Japan.
| | - Miho Egawa
- Department of Obstetrics and Gynecology, Kyoto University Hospital, 54 Kawaramachi Shogoin, Sakyo-ku, Kyoto City, 606-8397, Japan
| | - Kazuya Okamoto
- Department of Medical Informatics, Kyoto University Hospital, 54 Kawaramachi Shogoin, Sakyo-ku, Kyoto City, 606-8397, Japan
| | - Masaki Mandai
- Department of Obstetrics and Gynecology, Kyoto University Hospital, 54 Kawaramachi Shogoin, Sakyo-ku, Kyoto City, 606-8397, Japan
| | - Yoshimitsu Takahashi
- Department of Health Informatics, Kyoto University School of Public Health, Konoecho Yoshida, Sakyo-ku, Kyoto City, 606-8303, Japan
| | - Takeo Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Konoecho Yoshida, Sakyo-ku, Kyoto City, 606-8303, Japan
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Itazawa T, Kanatani KT, Hamazaki K, Inadera H, Tsuchida A, Tanaka T, Nakayama T, Go T, Onishi K, Kurozawa Y, Adachi Y, Konishi I, Heike T, Konishi Y, Sato K, Egawa M, Takahashi Y, Watanabe M, Yasumi R, Hirabayashi K, Morita M, Konishi K, Hirooka Y, Fukumoto S, Teshima R, Inoue T, Harada T, Kanzaki S, Maegaki Y, Ohno K, Koeda T, Amano H, Masumoto T. The impact of exposure to desert dust on infants' symptoms and countermeasures to reduce the effects. Allergy 2020; 75:1435-1445. [PMID: 31886894 DOI: 10.1111/all.14166] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 09/24/2019] [Accepted: 10/08/2019] [Indexed: 01/26/2023]
Abstract
BACKGROUND The association between particulate matter (PM), including desert dust, and allergic symptoms has not been well studied. We examined whether PM exacerbated nose/eye/respiratory symptoms in infants, with a focus on the desert dust element, and assessed possible countermeasures. METHODS We conducted a panel study of 1492 infants from October 2014 to July 2016 in 3 regions in Japan as an adjunct study of the Japan Environment and Children's Study. Infants' daily symptom scores and behaviors were acquired by web-based questionnaires sent to mothers, who answered within a day using mobile phones. Odds ratios (OR) for symptom development per increased fine PM or desert dust exposure were estimated. Regular use of medications and behaviors on the day of exposure were investigated as possible effect modifiers. RESULTS Infants developed nose/eye/respiratory symptoms significantly more often in accordance with fine particulate levels (adjusted OR per 10 µg/m3 increase: 1.04, 95% confidence interval [CI]: 1.01-1.07). A model including both fine particulates and desert dust showed reduced OR for fine particulates and robust OR for desert dust (adjusted OR per 0.1/km increase: 1.16, 95% CI: 1.09-1.23). An increased OR was observed both in infants who had previously wheezed and in those who had never wheezed. Receiving information on the particulate forecast, reducing time outdoors, closing windows, and regular use of leukotriene receptor antagonists were significant effect modifiers. CONCLUSIONS Transborder desert dust arrival increased the risk of nose/eye/respiratory symptoms development in infants. Regular use of leukotriene receptor antagonists and other countermeasures reduced the risk.
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Affiliation(s)
- Toshiko Itazawa
- Department of Pediatrics Faculty of Medicine University of Toyama Toyama Japan
| | - Kumiko T. Kanatani
- Japan Environment and Children's Study Kyoto Regional Center Kyoto University Graduate School of Medicine Kyoto Japan
| | - Kei Hamazaki
- Department of Public Health Faculty of Medicine University of Toyama Toyama Japan
| | - Hidekuni Inadera
- Department of Public Health Faculty of Medicine University of Toyama Toyama Japan
| | - Akiko Tsuchida
- Department of Public Health Faculty of Medicine University of Toyama Toyama Japan
| | - Tomomi Tanaka
- Department of Pediatrics Faculty of Medicine University of Toyama Toyama Japan
| | - Takeo Nakayama
- Department of Health Informatics Kyoto University School of Public Health Kyoto Japan
| | - Tohshin Go
- Japan Environment and Children's Study Kyoto Regional Center Kyoto University Graduate School of Medicine Kyoto Japan
| | - Kazunari Onishi
- Division of Environmental Health Graduate School of Public Health St.Luke's International University Tokyo Japan
- Division of Health Administration and Promotion Faculty of Medicine Tottori University Tottori Japan
| | - Yoichi Kurozawa
- Division of Health Administration and Promotion Faculty of Medicine Tottori University Tottori Japan
| | - Yuichi Adachi
- Department of Pediatrics Faculty of Medicine University of Toyama Toyama Japan
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11
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Ikeda Y, Egawa M, Hiyoshi K, Ueno T, Ueda K, Becker CB, Takahashi Y, Nakayama T, Mandai M. Development of a Japanese Version of the Daily Record of Severity of Problems for Diagnosing Premenstrual Syndrome. Womens Health Rep (New Rochelle) 2020; 1:11-16. [PMID: 33786468 PMCID: PMC7784737 DOI: 10.1089/whr.2019.0004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Background: Premenstrual syndrome (PMS) causes physical and mental symptoms in women during the luteal phase of the menstruation cycle. To confirm the relationship between symptoms and the menstruation cycle, daily symptom records are essential for diagnosing PMS. The daily record of severity of problems (DRSP) is currently the most validated tool for tracking symptoms to confirm and scale the severity of PMS, but there has been no validated Japanese version of this instrument. We developed a Japanese version of the DRSP and assessed its psychometric properties. Methods: A Japanese version of the DRSP was developed following the translation guidelines of the latest Patient-Reported Outcomes Consortium. We conducted a computational psychometric study among 119 women, all of whom completed the Japanese version of the DRSP, the Center for Epidemiologic Studies Depression Scale (CES-D), the Premenstrual Dysphoric Disorder (PMDD) scale, and a Numerical Rating Scale (NRS) for general health status. Each was filled out twice, 2 weeks apart, so that one set was completed in the luteal phase. Results: The Japanese version of the DRSP was developed with translation and cultural adaptation. The internal consistency coefficient for the total score was 0.93. The DRSP in the luteal phase correlated highly with the CES-D, PMDD scale, and NRS for general health status. Conclusions: Our Japanese version of the DRSP, developed as a PMS/PMDD diagnostic tool, was shown to provide substantial validity and reliability to rate premenstrual symptoms for Japanese women.
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Affiliation(s)
- Yumie Ikeda
- Department of Obstetrics and Gynecology, Kyoto University Hospital, Kyoto, Japan.,Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Miho Egawa
- Department of Obstetrics and Gynecology, Kyoto University Hospital, Kyoto, Japan
| | - Kazuko Hiyoshi
- Faculty of Nursing, Doshisha Women's College of Liberal Arts, Kyotanabe, Japan
| | - Tsukasa Ueno
- Department of Neuropsychiatry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keita Ueda
- Department of Neuropsychiatry, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Carl B Becker
- Science Policy Unit, Kyoto University School of Medicine, Kyoto, Japan
| | - Yoshimitsu Takahashi
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Takeo Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Masaki Mandai
- Department of Obstetrics and Gynecology, Kyoto University Hospital, Kyoto, Japan
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Matsumoto T, Egawa M, Kimura T, Hayashi T. A potential relation between premenstrual symptoms and subjective perception of health and stress among college students: a cross-sectional study. Biopsychosoc Med 2019; 13:26. [PMID: 31695730 PMCID: PMC6822352 DOI: 10.1186/s13030-019-0167-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 10/04/2019] [Indexed: 11/18/2022] Open
Abstract
Background A majority of women from all cultures and socioeconomic levels experience myriad symptoms known as premenstrual syndrome during the days prior to menstruation. The present study investigated commonly reported symptoms in the premenstrual phase among college students. The authors further scrutinized potential factors, including subjective perceptions of health, which may be related to the premenstrual-symptom constellation. Methods We conducted a cross-sectional survey, which included 200 participants (mean age: 19.8 ± 0.1 years old). The subjects completed a rating of their premenstrual experiences relative to 46 symptoms in eight categories of the self-reporting menstrual distress questionnaire (MDQ) to evaluate the prevalence and severity of premenstrual symptoms. The participants also answered a standardized health questionnaire regarding subjective perceptions of health, self-rating stress, lifestyle, and demographic variables. Results Regardless of severity, the 10 symptoms most often occurring among the participants included skin disorders, irritability, fatigue, mood swings, general aches and pains, lowered school or work performance, backache, painful breasts, weight gain, and swelling. Stepwise multiple regression analysis revealed subjective perception of health (β = 0.28; p < 0.001) and self-rating stress (β = 0.18; p = 0.008) as the factors most strongly related to the MDQ total scores. In addition, the 19 women who evaluated themselves as “unhealthy and stressed” had greater prevalence of severe or extremely severe physical (general aches and pains) and psychosocial symptoms (confusion, lowered school or work performance, decreased efficiency, loneliness, anxiety, restlessness, mood swings, and depression), compared to the healthy and non-stressed women. Conclusions The present study indicates the prevalence of premenstrual symptoms, regardless of severity and number, among college students and suggests that negative subjective perceptions of health and stress may be related to the intensity of premenstrual symptomatology.
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Affiliation(s)
- Tamaki Matsumoto
- 1Health Education Course, Department of Education, Faculty of Education, Shitennoji University, 3-2-1 Gakuenmae, Habikino, Osaka 583-8501 Japan
| | - Miho Egawa
- 2Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, 606-8507 Japan
| | - Tetsuya Kimura
- 3Graduate School of Human Development and Environment, Kobe University, Kobe, Hyogo 657-8501 Japan
| | - Tatsuya Hayashi
- 4Cognitive and Behavioral Science, Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501 Japan
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Miyai M, Hiruma J, Motoyama A, Egawa M, Yamamoto M, Ozeki Y, Tsuboi R, Hibino T. 240 SerpinB12 is an intrinsic mesotrypsin inhibitor regulating corneocyte desquamation and enucleation. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Arimoto H, Yanai M, Egawa M. Analysis of absorption and spreading of moisturizer on the microscopic region of the skin surface with near-infrared imaging. Skin Res Technol 2016; 22:505-512. [PMID: 27334342 DOI: 10.1111/srt.12292] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/20/2016] [Indexed: 11/25/2022]
Abstract
BACKGROUND/PURPOSE Near-infrared (NIR) light with high water absorption enables us to visualize the water content distribution appeared in the superficial skin layer. The light penetration depth with the wavelength of 1920 nm is almost 100 μm from the skin surface. Thus, the water distribution in the stratum corneum can be effectively imaged by detecting the wavelength band around 1920 nm. The aim of this article was to measure the time-lapse behavior of the tiny droplet of the moisturizer spreading on the skin surface by imaging in 1920 nm wavelength band for investigating the correlation with the traditional index of the skin condition such as the water content and transepidermal water loss (TEWL). METHODS Experiment is performed with three moisturizer products and seven volunteer subjects. The NIR image is acquired by an originally designed imaging scope equipped with the white light of the strong brightness [super continuum (SC) light], the bandpass filter with the center wavelength of 1920 nm, and the NIR image sensor. A tiny droplet of the moisturizer is put on the surface of the skin and the time-lapse images are saved. Each acquired image is analyzed from a view point of the droplet area and elapsed time for absorption into the skin. The water content and TEWL of all subjects are measured by the conventional electrical method for investigating the relationship with the measured droplet dynamics parameters. RESULTS Elapsed time for moisturizer droplet to be absorbed into the skin, the droplet area just before absorption for three moisturizer products, skin water contents, and TEWL for seven subjects were measured and correlation coefficients for each parameters were calculated. It was found that the skin with higher water contents or lower TEWL absorbed the moisturizer faster and spreads moisturizer wider. Also absorption and spreading speed depend on moisturizer property (moisturizing or fresh) which is originated from the moisturizer constituents. CONCLUSION The correlation values between the moisturizer dynamics on the skin surface and the traditional index of the skin property were clarified. It was found that the skin with the high water content or low TEWL absorbs the moisturizer droplet fast. The spreading area depends not only on the skin property but on the constituents of the moisturizers.
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Affiliation(s)
- H Arimoto
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Ibaraki, Japan.
| | - M Yanai
- Shiseido Research Center, Yokohama, Japan
| | - M Egawa
- Shiseido Research Center, Yokohama, Japan
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15
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Kanatani KT, Hamazaki K, Inadera H, Sugimoto N, Shimizu A, Noma H, Onishi K, Takahashi Y, Itazawa T, Egawa M, Sato K, Go T, Ito I, Kurozawa Y, Konishi I, Adachi Y, Nakayama T. Effect of desert dust exposure on allergic symptoms: A natural experiment in Japan. Ann Allergy Asthma Immunol 2016; 116:425-430.e7. [PMID: 26976782 DOI: 10.106/j.anai.2016.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2015] [Revised: 01/04/2016] [Accepted: 02/09/2016] [Indexed: 05/27/2023]
Abstract
BACKGROUND Desert dust originating from arid and semiarid areas is transported to widespread regions, including Japan. Desert dust particles exert adjuvant effects in animals. OBJECTIVE To examine whether desert dust enhances allergic symptoms in real-life settings and to explore its effect modifiers. METHODS We conducted an observational study of 3,327 pregnant women during spring and fall in October 2011 to May 2013 in 3 regions in Japan as an adjunct study of the Japan Environment & Children's Study. We acquired participants' daily symptom scores by sending a questionnaire to their mobile phones on high desert-dust days (>0.07/km) and on some randomly selected other days (control days) for each participant. RESULTS Pregnant women had an increased risk of allergic symptoms on high desert-dust days (adjusted odds ratio [OR], 1.10; 95% CI, 1.04-1.18). The increased OR was mostly driven by those who showed positive IgE to Japanese cedar pollen when pollen simultaneously dispersed (adjusted OR, 1.25; 95% CI, 1.13-1.38), whereas no clear risk increase was observed in the absence of pollen or for participants with negative IgE to Japanese cedar pollen. The risk elevation was observed from low levels of desert dust in a dose-dependent manner even on control days. CONCLUSION Ambient desert dust level was associated with an increased risk of allergic symptoms in pollen-sensitized pregnant women when pollen was present in the air. The risk increase was dose dependent and was observed from low levels of desert dust. These results support a hypothesis that ambient desert dust particles exert adjuvant effects in human in real-life settings. TRIAL REGISTRATION clinicaltrials.gov Identifier: UMIN000010826.
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Affiliation(s)
- Kumiko T Kanatani
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan
| | - Kei Hamazaki
- Department of Public Health, University of Toyama, Toyama, Japan
| | - Hidekuni Inadera
- Department of Public Health, University of Toyama, Toyama, Japan
| | - Nobuo Sugimoto
- Center for Environmental Measurement and Analysis, National Institute for Environmental Studies, Tsukuba, Ibaragi, Japan
| | - Atsushi Shimizu
- Center for Regional Environmental Research, National Institute for Environmental Studies, Tsukuba, Ibaragi, Japan
| | - Hisashi Noma
- Department of Data Science, The Institute of Statistical Mathematics, Tokyo, Japan; Department of Biostatistics, Kyoto University School of Public Health, Kyoto, Japan
| | - Kazunari Onishi
- Department of Social Medicine, Faculty of Medicine, Tottori University, Yonago, Japan
| | - Yoshimitsu Takahashi
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan; Department of Social and Behavioral Sciences, Harvard School of Public Health, Boston, Massachusetts
| | - Toshiko Itazawa
- Department of Pediatrics, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Miho Egawa
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Keiko Sato
- Institute for Advancement of Clinical and Translational Science, Kyoto University Hospital, Kyoto, Japan; Kyoto Unit Centre for Japan Environment & Children's Study, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Tohshin Go
- Kyoto Unit Centre for Japan Environment & Children's Study, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Isao Ito
- Department of Respiratory Medicine, Kyoto University Hospital, Kyoto, Japan
| | - Youichi Kurozawa
- Department of Social Medicine, Faculty of Medicine, Tottori University, Yonago, Japan
| | - Ikuo Konishi
- Department of Gynecology and Obstetrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuichi Adachi
- Department of Pediatrics, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Takeo Nakayama
- Department of Health Informatics, Kyoto University School of Public Health, Kyoto, Japan.
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16
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Morino S, Egawa M, Hirata H, Nishimura F, Aoyama T, Konishi I. Association between Premenstrual Syndrome and Daily Physical Activity Levels. Womens Health Issues 2016. [DOI: 10.4172/2325-9795.1000241] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Egawa M, Sato Y. In vivoevaluation of two forms of urea in the skin by Raman spectroscopy after application of urea-containing cream. Skin Res Technol 2014; 21:259-64. [DOI: 10.1111/srt.12184] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2014] [Indexed: 11/30/2022]
Affiliation(s)
- M. Egawa
- Shiseido Research Center; Yokohama Japan
| | - Y. Sato
- Shiseido Research Center; Yokohama Japan
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18
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Arimoto H, Egawa M. Imaging wavelength and light penetration depth for water content distribution measurement of skin. Skin Res Technol 2014; 21:94-100. [DOI: 10.1111/srt.12163] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2014] [Indexed: 11/30/2022]
Affiliation(s)
- H. Arimoto
- Electronics and Photonics Research Institute; National Institute of Advanced Industrial Science and Technology; Tsukuba Japan
| | - M. Egawa
- Shiseido Research Center; Yokohama Japan
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19
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Kanatani KT, Adachi Y, Sugimoto N, Noma H, Onishi K, Hamazaki K, Takahashi Y, Ito I, Egawa M, Sato K, Go T, Kurozawa Y, Inadera H, Konishi I, Nakayama T. Birth cohort study on the effects of desert dust exposure on children's health: protocol of an adjunct study of the Japan Environment & Children's Study. BMJ Open 2014; 4:e004863. [PMID: 24958210 PMCID: PMC4067890 DOI: 10.1136/bmjopen-2014-004863] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2014] [Revised: 06/02/2014] [Accepted: 06/03/2014] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION Desert dust is estimated to constitute about 35% of aerosol in the troposphere. Desertification, climatic variability and global warming all can contribute to increased dust formation. This study aims to examine possible health effects of desert dust exposure on pregnant women and their children. The purpose of this report was to present the study protocol. METHODS AND ANALYSIS This 4-year birth cohort study began in 2011 as an adjunct study of the Japan Environment & Children's Study (JECS) involving three regions: Kyoto, Toyama and Tottori. The JECS participants of the three regions above who also agreed to participate in this adjunct study were enrolled prior to delivery. Light Detecting and Ranging (LIDAR) with a polarisation analyser, which can distinguish mineral dust particles from other particles, is used for exposure measurements. Outcomes are allergic symptoms for mothers and development of asthma and other allergic or respiratory diseases for their children. Data are acquired in a timely manner by connecting local LIDAR equipment to an online questionnaire system. Participants answer the online questionnaire using mobile phones or personal computers. ETHICS AND DISSEMINATION The study protocol was approved by the ethics committees of Kyoto University, University of Toyama and Tottori University. All participants provided written informed consent. The results of this study will be published in peer-reviewed journals and disseminated to the scientific community and general public. TRIAL REGISTRATION NUMBER UMIN000010826.
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Affiliation(s)
- Kumiko T Kanatani
- Department of Health Informatics, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Yuichi Adachi
- Department of Paediatrics, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Nobuo Sugimoto
- National Institute for Environmental Studies, Tsukuba, Japan
| | - Hisashi Noma
- Department of Biostatistics, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Kazunari Onishi
- Department of Public Health, Tottori University, Yonago, Japan
| | - Kei Hamazaki
- Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Yoshimitsu Takahashi
- Department of Health Informatics, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
| | - Isao Ito
- Department of Respiratory Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Miho Egawa
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Keiko Sato
- Kyoto Unit Center for Japan Environment & Children's Study, Kyoto University, Graduate School of Medicine, Kyoto, Japan
| | - Tohshin Go
- Kyoto Unit Center for Japan Environment & Children's Study, Kyoto University, Graduate School of Medicine, Kyoto, Japan
| | | | - Hidekuni Inadera
- Department of Public Health, Faculty of Medicine, University of Toyama, Toyama, Japan
| | - Ikuo Konishi
- Department of Gynecology and Obstetrics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Takeo Nakayama
- Department of Health Informatics, Graduate School of Medicine and Public Health, Kyoto University, Kyoto, Japan
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Tsujikawa M, Sone T, Egawa M, Ueda N, Higashi K. Hardness profile improvement of plasma nitrided high speed steel by glow discharge heating. ACTA ACUST UNITED AC 2013. [DOI: 10.1179/174951411x13203192450304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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21
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Sekine J, Hattori M, Ueno M, Egawa M, Yoshino A, Kanno T, Nariai Y, Yanai C, Ishibashi H. Surgical management of patients receiving bisphosphonates. Int J Oral Maxillofac Surg 2013. [DOI: 10.1016/j.ijom.2013.07.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
The oxidative effects of cigarette smoke on the human skin were investigated. A remarkable increase in the conversion ratio of squalene (SQ) to squalene monohydroperoxide (SQHPO) due to exposure to cigarette smoke was observed using a CL-HPLC (high performance liquid chromatography with a chemiluminescence detector) system. The results showed that cigarette smoke caused lipid peroxidation. We also found that the addition of chain-breaking-type antioxidants, such as oolong tea extract, inhibited the peroxidation. When cultured human skin fibroblasts were exposed to cigarette smoke, this increased the intensity of ultraweak chemiluminescence (CL), leading us to assume that cigarette smoke caused oxidation in cultured human skin fibroblasts. When the cultured human skin fibroblasts were treated with antioxidants such as glutathione, thiotaurine, hypotaurine and ascorbic acid there was little increase in CL, meaning that oxidation had been prevented in the human skin fibroblasts. We also exposed the human forearm to cigarette smoke and obtained sebum using cotton immersed in acetone in order to measure hydroperoxide levels by means of a CL-HPLC system. The exposure of skin to the smoke caused a dose-dependent increase in hydroperoxides derived from cigarette smoke. Further exposure of the forearm to cigarette smoke increased the intensity of CL, but pretreating the skin with antioxidants such as glutathione, thiotaurine and hypotaurine inhibited this increase. From these results, we concluded that cigarette smoke had an oxidative effect on SQ, cultured human skin fibroblasts and the surface of the human skin. The application of antioxidants prevented the cigarette smoke-induced oxidation. We consider that these oxidative effects on the skin could be a cause of skin disorders and skin aging.
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Affiliation(s)
- M Egawa
- Shiseido Research Center, 1050 Nippa-cho, Kohoku-ku, Yokohama-shi, Japan 223-8553
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Egawa M, Fukuda M, Takashima H, Misaki T, Kinuya K, Terahata S. The sentinel node concept in prostate cancer: Present reality and future prospects. Indian J Urol 2011; 24:451-6. [PMID: 19468495 PMCID: PMC2684382 DOI: 10.4103/0970-1591.44246] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
A sentinel node (SN) is defined as the first site where cancer cells are carried by lymph flow from a tumor. If this definition (SN concept) correctly reflects the clinical reality, intraoperative SN biopsy would facilitate precise nodal staging. In malignant melanoma, a prolonged survival has been evidenced by a large-scale randomized controlled study. On the contrary, research on SN concept in deeply located cancers including prostate cancer, is still investigative, and no concrete data from clinical trials are yet available. Since 1993, several investigators have demonstrated that the SN concept could be applied in prostate cancer patients as well with high accuracy. Although promising and technically feasible in pre-clinical settings, many hurdles remain to be cleared before clinical application can be recommended. This review addresses the current status and related issues of the SN concept in prostate cancer, and discusses the future directions.
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Takehara K, Miyamoto K, Kawakami Y, Kumagai M, Samura O, Egawa M, Nakamura H, Mizunoe T, Taniyama K, Saji F. Epigenetic alteration of BRCA1 in human ovarian tumors. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e16532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e16532 Background: The breast cancer susceptibility gene 1 (BRCA1) is mutated in half of hereditary breast cancers, and in about 80% of hereditary breast and ovarian cancers. Also, BRCA1 expression is decreased in sporadic breast cancers by other mechanisms, such as epigenetic alteration, suggesting its important role in sporadic breast cancers. The epigenetic alteration of BRCA1 and its contribution in sporadic ovarian tumors are not fully understood. Methods: We evaluated the DNA methylation status of the BRCA1 5’ CpG island by methylation-specific PCR in 12 human ovarian cancer cell lines and 39 primary epithelial ovarian tumor specimens. Cases included the following: malignant (n = 16), borderline (n = 8), and benign (n = 16) tumors. The correlation between these results and clinicopathological features was examined. Results: BRCA1 was hypermethylated in one of 12 (8%) ovarian cancer cell lines and 15 of 39 (38%) primary ovarian tumors. Relative to clinicopathological features, BRCA1 methylation was detected in 39% of malignant and borderline tumors and in 38% of benign tumors, suggesting the importance of BRCA1 pathway in both types of tumors. Some adjacent nontumorous tissues also showed aberrant methylation. Conclusions: BRCA1 was found to be frequently hypermethylated both in benign and malignant ovarian tumors. Our results suggest that epigenetic alteration of BRCA1 might play a role in the development of benign and malignant sporadic ovarian tumors. No significant financial relationships to disclose.
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Affiliation(s)
- K. Takehara
- NHO Japan Kure Medical Center/Chugoku Cancer Center, Hiroshima, Japan; NHO Japan Kure Medical Center/Chugoku Cancer Center, Hirosima, Japan
| | - K. Miyamoto
- NHO Japan Kure Medical Center/Chugoku Cancer Center, Hiroshima, Japan; NHO Japan Kure Medical Center/Chugoku Cancer Center, Hirosima, Japan
| | - Y. Kawakami
- NHO Japan Kure Medical Center/Chugoku Cancer Center, Hiroshima, Japan; NHO Japan Kure Medical Center/Chugoku Cancer Center, Hirosima, Japan
| | - M. Kumagai
- NHO Japan Kure Medical Center/Chugoku Cancer Center, Hiroshima, Japan; NHO Japan Kure Medical Center/Chugoku Cancer Center, Hirosima, Japan
| | - O. Samura
- NHO Japan Kure Medical Center/Chugoku Cancer Center, Hiroshima, Japan; NHO Japan Kure Medical Center/Chugoku Cancer Center, Hirosima, Japan
| | - M. Egawa
- NHO Japan Kure Medical Center/Chugoku Cancer Center, Hiroshima, Japan; NHO Japan Kure Medical Center/Chugoku Cancer Center, Hirosima, Japan
| | - H. Nakamura
- NHO Japan Kure Medical Center/Chugoku Cancer Center, Hiroshima, Japan; NHO Japan Kure Medical Center/Chugoku Cancer Center, Hirosima, Japan
| | - T. Mizunoe
- NHO Japan Kure Medical Center/Chugoku Cancer Center, Hiroshima, Japan; NHO Japan Kure Medical Center/Chugoku Cancer Center, Hirosima, Japan
| | - K. Taniyama
- NHO Japan Kure Medical Center/Chugoku Cancer Center, Hiroshima, Japan; NHO Japan Kure Medical Center/Chugoku Cancer Center, Hirosima, Japan
| | - F. Saji
- NHO Japan Kure Medical Center/Chugoku Cancer Center, Hiroshima, Japan; NHO Japan Kure Medical Center/Chugoku Cancer Center, Hirosima, Japan
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Takehara K, Kawakami Y, Egawa M, Hanaoka M, Samura O, Kumagai M, Mizunoe T, Saji F. Prognostic factors in patients with bulky stage Ib or II cervical carcinoma undergoing neoadjuvant chemotherapy and radical hysterectomy. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.16548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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26
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Kawakami Y, Miyamoto K, Takehara K, Kumagai M, Samura O, Hanaoka M, Egawa M, Mizunoe T, Taniyama K, Saji F. Downregulation of RUNX3 by protein mislocation and gene inactivation in human epithelial ovarian cancer cells. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.16545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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27
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Egawa M, Tagami H. Comparison of the depth profiles of water and water-binding substances in the stratum corneum determined in vivo by Raman spectroscopy between the cheek and volar forearm skin: effects of age, seasonal changes and artificial forced hydration. Br J Dermatol 2008; 158:251-260. [PMID: 18047517 DOI: 10.1111/(issn)1365-2133] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
BACKGROUND Dermatologists and cosmetic scientists are becoming increasingly interested in stratum corneum (SC) hydration because the SC plays an important role in keeping the skin surface soft and smooth. However, conventional in vivo noninvasive methods do not provide direct information about the depth profiles of water content or SC components that hold water. OBJECTIVES To study the depth profiles of water and SC components in vivo by Raman spectroscopy, and to analyse the changes due to age, anatomical location, season and water application. METHODS In vivo Raman spectra of the skin of the cheek and the volar forearm were obtained from 50 healthy Japanese volunteers of different ages (age range 22-76 years) with a confocal Raman spectrometer. The depth-dependent profiles of water and of SC water-binding components were calculated from the respective Raman spectra. RESULTS The depth profile of the SC water content was observed in a pattern ranging from around 30% (water/wet tissue) at the outermost layer of the SC to about 70% at the deeper living layer. Although the water content at a depth of 10-30 microm in the forearm skin tended to be lower in older subjects than in younger subjects, no such difference was found in the much thinner SC of the cheek. Moreover, there was no seasonal difference in depth profile of water content from the mid part of the SC to an 80-microm depth from the skin surface both in the cheek and in the forearm. The water content of all the evaluated SC components showed a gradual decrease from the surface to deeper portions. The mean amounts of lactate in the forearm skin and cholesterol in the cheek skin were significantly higher in younger subjects than in older subjects. In contrast, the levels of free amino acids and trans-urocanic acid were higher in the forearm skin of older subjects than in younger subjects. The relative amounts of urea and lactate were the highest in summer, when that of trans-urocanic acid was the lowest. Prolonged water application on the forearm skin even for 90 min resulted in a remarkable increase in water content throughout the SC, even reaching the granular layer, which was only gradually released from the upper part of the SC after discontinuation of the hydration procedure. CONCLUSIONS Our present findings suggest that changes in the concentration depth profiles of water, free amino acids and lipids in the skin depend on age, anatomical site and season. These findings indicate the important roles played by various water-holding substances in the SC in the regulation of SC water content.
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Affiliation(s)
- M Egawa
- Shiseido Life Science Research Center, 2-2-1 Hayabuchi, Tsuzuki-ku, Yokohama 224-8558, Japan.
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Egawa M, Tagami H. Comparison of the depth profiles of water and water-binding substances in the stratum corneum determined in vivo by Raman spectroscopy between the cheek and volar forearm skin: effects of age, seasonal changes and artificial forced hydration. Br J Dermatol 2007; 158:251-60. [DOI: 10.1111/j.1365-2133.2007.08311.x] [Citation(s) in RCA: 167] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Itoh N, Egawa M, Kitazawa T, Ueda M, Koiwa M. A new method for detecting the abomasal position and characteristics of movement at the onset of the left displacement of the abomasum in cows. J Vet Med A Physiol Pathol Clin Med 2006; 53:375-8. [PMID: 16922837 DOI: 10.1111/j.1439-0442.2006.00842.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
A new method has been developed by us to observe the movements of the abomasum by using a magnet and digital magnetometer. Four cows with left displacement of the abomasum underwent conventional correction by rolling without tacking. A doughnut-type magnet was sutured to the pyloric region in a routine operation. The same was done in three control cows. The position of the pyloric region was observed with a digital magnetometer from outside the cow's body. The magnets in the pyloric region of the control cows were located at the right side of the abdominal cavity at 10-30 cm anterior to the udder base, and moved slightly in various directions within the span of a day. On the other hand, the magnets in the pyloric region of cows with abomasal displacement moved widely in the abdominal cavity from the normal right side to the abnormal left front side. A large movement of the magnet from the normal right side to the abnormal left side of the abdominal cavity was observed within 12 h of the onset of abomasal displacement.
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Affiliation(s)
- N Itoh
- Department of Veterinary Medicine, Rakuno Gakuen University, Ebetsu 069-8501, Japan.
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Fujiwara H, Sato Y, Nishioka Y, Yoshioka S, Kosaka K, Fujii H, Tatsumi K, Egawa M, Zeng BX, Furukawa K, Higuchi T. New regulatory mechanisms for human extravillous trophoblast invasion. Reprod Med Biol 2005; 4:189-195. [PMID: 29699222 DOI: 10.1111/j.1447-0578.2005.00104.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Human extravillous trophoblasts (EVT) invade maternal deciduas and reconstructed maternal spiral arteries during early placentation. However, the precise regulatory mechanisms to induce EVT invasion toward arteries and/or to protect EVT from further invasion have not been well understood. Recently, it was found that EVT that had already ceased their invasion, specifically expressed cluster of differentiation (CD9) and dipeptidyl peptidase IV (DPPIV) on their cell surface. In addition, EVT migrating to maternal spiral arteries expressed CC chemokine receptor type-1 (CCR-1), which is a chemokine receptor for regulated on activation normal T cell expressed and secreted (RANTES) and so on. CD9 is associated with integrin molecules on the cell surface and is considered to modulate integrin function. In contrast, DPPIV is a cell surface peptidase that can metabolize RANTES at extracellular sites before its accessing to the chemokine receptors. In vitro functional assay showed that CD9, DPPIV and RANTES are involved in the regulation for EVT invasion. From these findings, it can be proposed that CD9 and DPPIV, including chemokines, are new regulatory factors for human extravillous trophoblasts. (Reprod Med Biol 2005; 4: 189-195).
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Affiliation(s)
- Hiroshi Fujiwara
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Yukiyasu Sato
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Yoshihiro Nishioka
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Shinya Yoshioka
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Kenzo Kosaka
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Haruko Fujii
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Keiji Tatsumi
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Miho Egawa
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Bin-Xiang Zeng
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Kazumi Furukawa
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
| | - Toshihiro Higuchi
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto, Japan
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Honda T, Fujiwara H, Yoshioka S, Yamada S, Nakayama T, Egawa M, Nishioka Y, Takahashi A, Fujii S. Laminin and fibronectin concentrations of the follicular fluid correlate with granulosa cell luteinization and oocyte quality. Reprod Med Biol 2004; 3:43-49. [PMID: 29699183 DOI: 10.1111/j.1447-0578.2004.00051.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
Background and Aims: Progesterone production of human cultured luteinizing granulosa cells was reported to be modified by extracellular matrix, suggesting that extracellular matrix regulates luteinization of granulosa cells after ovulation. In the present study, the relationship among laminin, fibronectin, progesterone and estradiol in follicular fluid along with oocyte quality was analyzed to estimate the physiological role of extracellular matrix in follicular luteinization and oocyte quality during ovulation. Methods and Results: Follicular fluid was collected at oocyte pick-up from the patients undergoing in vitro fertilization treatment and intracytoplasmic sperm injection. The concentrations of laminin, fibronectin, progesterone and estradiol in the follicular fluid were measured by enzyme immunoassay and radioimmunoassay. The morphology of oocytes were also assessed during the procedure of intracytoplasmic sperm injection and was classified into normal and abnormal groups. The fibronectin concentration was higher in the normal ooplasm group than in the abnormal group, but it did not correlate with estradiol or progesterone concentration. However, laminin concentration significantly correlated with that of progesterone, but not with cytoplasm morphology of oocytes. There was no difference in estradiol or progesterone concentration between the normal and abnormal groups. Conclusion: These findings suggest that extracellular matrix plays some roles in regulating human granulosa cell luteinization and oocyte quality during ovulation. (Reprod Med Biol 2004; 3: 43-49).
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Affiliation(s)
- Tetsuro Honda
- Department of Gynecology and Obstetrics, Kurashiki Central Hospital, Kurashiki and
| | - Hiroshi Fujiwara
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto City, Kyoto, Japan
| | - Shinya Yoshioka
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto City, Kyoto, Japan
| | - Shigetoshi Yamada
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto City, Kyoto, Japan
| | - Takahiro Nakayama
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto City, Kyoto, Japan
| | - Miho Egawa
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto City, Kyoto, Japan
| | - Yoshihiro Nishioka
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto City, Kyoto, Japan
| | - Akira Takahashi
- Department of Gynecology and Obstetrics, Kurashiki Central Hospital, Kurashiki and
| | - Shingo Fujii
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Kyoto City, Kyoto, Japan
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Egawa M, Yoshioka S, Higuchi T, Sato Y, Tatsumi K, Fujiwara H, Fujii S. Ephrin B1 is expressed on human luteinizing granulosa cells in corpora lutea of the early luteal phase: the possible involvement of the B class Eph-ephrin system during corpus luteum formation. J Clin Endocrinol Metab 2003; 88:4384-92. [PMID: 12970314 DOI: 10.1210/jc.2002-021910] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Ephrins and their Eph receptors are both membrane-bound proteins that function in various cell-cell recognition processes, such as morphogenesis and angiogenesis. In this study we examined the expression of B class ephrins-Ephs in the human ovary during corpus luteum formation, a process of tissue remodeling accompanied by angiogenesis. RT-PCR analysis detected mRNAs for Eph B1, B2, and B4 and ephrin B1 and B2, but not Eph B3 and B6 or ephrin B3, in human corpora lutea of the early luteal phase. By immunohistochemistry, ephrin B1 was moderately expressed on theca interna cells, but was expressed at a low level on granulosa cells in the preovulatory follicles. After ovulation, a rapid increase in ephrin B1 expression was observed on luteinizing granulosa cells, whereas its expression on luteinizing theca interna cells decreased. The mRNA expression of ephrin B1 in luteinizing granulosa cells was confirmed by Northern blotting. Flow cytometry showed that ephrin B1 was expressed on the surface of isolated luteinizing granulosa cells. Moreover, these cells had the ability to bind to recombinant Eph B2-Fc fusion protein. These findings suggest that ephrin B1-expressing granulosa cells can directly interact with Eph-bearing cells during corpus luteum formation in vivo, suggesting that Eph-ephrin system is involved in this process.
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Affiliation(s)
- Miho Egawa
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan
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Kurono Y, Egawa M, Yano T, Shimoo K. The effect of acupuncture on the coronary arteries as evaluated by coronary angiography: a preliminary report. Am J Chin Med 2003; 30:387-96. [PMID: 12230027 DOI: 10.1142/s0192415x02000363] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The Neiguan acupuncture point (EH-6) of the heart meridian is often used for circulatory disorders. To clarify this effect, we measured coronary diameters in patients with angina pectoris following acupuncture stimulation using cardioangiography. Two kinds of acupuncture stimulation, the leaving needle (LN) and the sparrow pecking method (SPM), were employed for this study. No significant differences were found between LN and SPM. Concerning the pattern of coronary reaction, coronary constriction following acupuncture showed a relationship to patients with vasospastic angina. Coronary dilation following acupuncture showed a relationship to patients with Syndrome X. The mean dilatation with acupuncture was 68.8% of that caused by isosorbide dinitrate. These findings may help to clarify the mechanism of acupuncture treatment.
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Affiliation(s)
- Y Kurono
- Graduate School of Acupuncture and Moxibustion, Meiji University of Oriental Medicine, Kyoto, Japan.
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Fujiwara H, Yoshioka S, Tatsumi K, Kosaka K, Satoh Y, Nishioka Y, Egawa M, Higuchi T, Fujii S. Human endometrial epithelial cells express ephrin A1: possible interaction between human blastocysts and endometrium via Eph-ephrin system. J Clin Endocrinol Metab 2002; 87:5801-7. [PMID: 12466389 DOI: 10.1210/jc.2002-020508] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Eph receptor tyrosine kinases and their cell membrane-bound ligands, ephrins, are well known to function in cell-to-cell interaction and to play an important role in cell migration and adhesion during embryonic development in mammals. To investigate the involvement of the Eph-ephrin system in human embryo implantation, the expression of Eph receptors and ephrins was examined in human blastocysts and the endometrium. Immunohistochemical examination showed that ephrin A1 was expressed on human endometrial luminal and glandular epithelial cells in both the proliferative (cycle d 8-13; n = 8) and secretory (cycle d 18-24; n = 7) phases. RT-PCR analysis of isolated endometrial epithelial cells and stromal cells showed that ephrin A1 mRNA was predominantly expressed in endometrial epithelial cells. Northern blot analysis also confirmed the expression of ephrin A1 mRNA in the endometrium. In addition, nested RT-PCR analysis revealed the mRNA expression of Eph A1, one of the representative receptors for ephrin A1, in human blastocysts obtained from patients undergoing in vitro fertilization treatment. These findings indicate a possible interaction between human blastocysts and endometrial epithelial cells via the Eph-ephrin system. Because intracytoplasmic signals are induced by Eph receptors after ephrin stimulation, this system may be involved in the activation process of the human embryo during the implantation period.
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Affiliation(s)
- Hiroshi Fujiwara
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyoto University, Sakyo-ku, Kyoto 606-8507, Japan.
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Miyagi T, Hori O, Egawa M, Kato H, Kitagawa Y, Konaka H, Ozawa K, Koshida K, Uchibayashi T, Ogawa S, Namiki M. Antitumor effect of reduction of 150-kDa oxygen-regulated protein expression in human prostate cancer cells. Mol Urol 2002; 5:79-80. [PMID: 11690552 DOI: 10.1089/109153601300177592] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Heat shock proteins (HSPs)/stress proteins are molecular chaperones that are induced by various environmental and physiological stimuli. Evidence of the relations between the expression of HSPs and the regulation of cell growth or transformation has accumulated. The 150-kDa oxygen-regulated protein (ORP150), a new member of HSP family, functions as a molecular chaperone in the endoplasmic reticulum. We have examined whether transduced antisense ORP150 cDNA reduces tumorigenicity and angiogenicity. Relations between these stress proteins and cancer and possibilities for anticancer gene therapy are described.
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Affiliation(s)
- T Miyagi
- Department of Urology, Kanazawa University School of Medicine, Kanazawa, Japan
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Koshida K, Imao T, Ito H, Miyagi T, Konaka H, Mizokami A, Egawa M, Namiki M. [Prospects for molecular research in urological oncology: bladder cancer]. Hinyokika Kiyo 2001; 47:815-8. [PMID: 11771177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
This report consists of a description of our research findings relating to the mechanism of cancer metastasis and target molecules for early diagnosis or cancer therapy. First, we investigated the significance of metastasis-related genes expressed to various extents in three human bladder cancer cell lines using two in vivo models. The relationship between the gene expression pattern and the behavior of cancer cells implicated a loss of E-cadherin expression as a critical factor in facilitating the progression of bladder cancer. Second, we examined the expression of human telomerase reverse transcriptase (hTERT) mRNA in voided urine samples in patients with bladder cancer. Reverse transcription-polymerase chain reaction (RT-PCR) analysis showed a higher positive rate as compared with cytological examination, suggesting that the expression of hTERT in urine samples may be a useful diagnostic marker for bladder cancer. Finally, we searched for a molecule to which antisense can be applied as a treatment modality. The 150 kDa oxygen regulated protein (ORP 150), a kind of heat shock proteins, functions as a molecular chaperone in the endoplasmic reticulum. We demonstrated that the adenoviral-mediated antisense ORP150 cDNA transfer resulted in the suppression of vascular endothelial growth factor (VEGF) expression and tumor growth in vivo. In addition, the significant correlation between ORP150 and matrix metalloproteinase 2 (MMP-2) expression was observed in bladder cancer, suggesting that ORP150 functions as a molecular chaperon to MMP-2 secretion for tumor invasion. Anti-sense ORP150 may therefore have a potentially stronger antitumor effect because of its multitargeting capability as a molecular chaperone.
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Affiliation(s)
- K Koshida
- Department of Urology, Kanazawa University School of Medicine
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Tsukamoto Y, Kotani T, Hiroi S, Egawa M, Ogawa K, Sasaki F, Taira E. Expression and adhesive ability of gicerin, a cell adhesion molecule, in the pock lesions of chorioallantoic membranes infected with an avian poxvirus. Can J Vet Res 2001; 65:248-53. [PMID: 11768132 PMCID: PMC1189687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
The expression and adhesive activities of gicerin, a cell adhesion protein, in the pock lesions on chicken chorioallantoic membranes (CAM) infected with an avian poxvirus were studied. In normal CAMs, gicerin was found on the flattened epithelial cells, and neurite outgrowth factor (NOF) was in the basement membrane. However, in the pock lesions on infected CAMs, gicerin was overexpressed on the cell membranes of hyperplastic epithelial cells forming thick epithelial layers. Neurite outgrowth factor was also found mainly in the basement membrane, but occasionally showed aberrant expression among hyperplastic cells. In vitro analyses, using the dissociated cells from pock lesions, demonstrated that an anti-gicerin polyclonal antibody inhibit cell aggregation activity and cell adhesion to NOF. These results suggest that gicerin might promote the cell-cell and cell-extracellular matrix protein bindings of the hyperplastic epithelial cells by its homophilic and heterophilic adhesive activities, and contribute to pock formation on the infected CAMs.
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Affiliation(s)
- Y Tsukamoto
- Department of Veterinary Anatomy, Graduate School of Agricultural and Biological Sciences, Osaka Prefecture University, Sakai, Japan.
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Matsubara S, Wada Y, Gardner TA, Egawa M, Park MS, Hsieh CL, Zhau HE, Kao C, Kamidono S, Gillenwater JY, Chung LW. A conditional replication-competent adenoviral vector, Ad-OC-E1a, to cotarget prostate cancer and bone stroma in an experimental model of androgen-independent prostate cancer bone metastasis. Cancer Res 2001; 61:6012-9. [PMID: 11507044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Prostate cancer has a high propensity to metastasize to bone, which often resists hormone, radiation, and chemotherapies. Because of the reciprocal nature of the prostate cancer and bone stroma interaction, we designed a cotargeting strategy using a conditional replication-competent adenovirus to target the growth of tumor cells and their associated osteoblasts. The recombinant Ad-OC-E1a was constructed using a noncollagenous bone matrix protein osteocalcin (OC) promoter to drive the viral early E1a gene with restricted replication in cells that express OC transcriptional activity. Unlike Ad-PSE-E1a, Ad-OC-E1a was highly efficient in inhibiting the growth of PSA-producing (LNCaP, C4-2, and ARCaP) and nonproducing (PC-3 and DU145) human prostate cancer cell lines. This virus was also found to effectively inhibit the growth of human osteoblasts and human prostate stromal cells in vitro. Athymic mice bearing s.c. androgen receptor-negative and PSA-negative PC-3 xenografts responded to a single intratumoral administration of 2 x 10(9) plaque-forming unit(s) of Ad-OC-E1a. In SCID/bg mice, intraosseous growth of androgen receptor-positive and PSA-producing C4-2 xenografts responded markedly to i.v. administrations of a single dose of Ad-OC-E1a. One hundred percent of the treated mice responded to this systemic Ad-OC-E1a therapy with a decline of serum PSA to an undetectable level, and 80% of the mice with PSA rebound responded to the second dose of systemic Ad-OC-E1a. Forty percent of the mice were found to be cured by systemic Ad-OC-E1a without subsequent PSA rebound or tumor cells found in the skeleton. This cotargeting strategy shows a broader spectrum and appears to be more effective than systemic Ad-PSE-E1a in preclinical models of human prostate cancer skeletal metastasis.
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Affiliation(s)
- S Matsubara
- Department of Urology, Molecular Urology and Therapeutics Program, University of Virginia School of Medicine, Charlottesville, Virginia 22908, USA
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Abstract
A 44-year-old woman was admitted to the authors' institution for evaluation of two masses in the right forefoot. Standard radiographs showed foci of calcification within the mass. Magnetic resonance imaging and macroscopic findings during surgery revealed the lesion was composed mainly of two different portions: dorsal cystic masses and a solid mass in the plantar side of the fifth metatarsal head. Histologic and immunohistochemical examinations showed that the former was an intermetatarsophalangeal bursitis induced by keratinous material, whereas the latter was a ruptured epidermal cyst. To the best of the authors' knowledge, the current case is the first report of intermetatarsophalangeal bursitis caused by an untreated epidermal cyst.
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Affiliation(s)
- K Matsumoto
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Otsu, Japan
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Koshida K, Konaka H, Kato H, Miyagi T, Egawa M, Uchibayashi T, Namiki M. [Correlation between expression of metastasis-related genes and lymph node metastasis in testicular cancer]. Hinyokika Kiyo 2000; 46:775-81. [PMID: 11215209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
To investigate the factors related to lymph node metastasis of testicular germ cell tumors, we first established a seminoma orthotopic model with lymph node metastasis in SCID mice by inoculating small fragments from subcutaneous xenografts. Second, we compared the expression patterns of metastasis-related genes of the seminoma xenografts and of the TCam-2 cells which were established as a seminoma cell line from a primary testicular seminoma. Third, we immunohistochemically analyzed human germ cell tumors (25 seminomas, 17 nonseminomas) using monoclonal antibodies to CD34, VEGF, VEGF-C, Flt-4, MMP-2 and E-cadherin. Testicular seminoma xenografts grew in 32/32 (100%) of the inoculated mice, of which 15 (47%) developed macroscopic metastasis to the renal hilar lymph node. Circulating tumor cells were detectable by using a PCR assay for the human beta-globin gene in 25/32 (78%) mice, although metastatic foci were not histologically evident in the visceral organs, including lungs, liver, kidneys and spleen. This may reflect the lymphophilic characteristics of the seminoma cells used. Regarding mRNA expression of metastasis-related genes, an increased expression of MMP-2 and VEGF compared with that in the s.c. xenografts was demonstrated by RT-PCR assay in the testicular seminoma xenografts. In addition, uPAR, MMP-1, MMP-2, MT1-MMP and MT3-MMP showed a a stronger expression and PAI-2 a weaker expression in the seminoma xenografts than did TCam-2 cells. These results suggest a higher metastatic potential of the seminoma xenografts, especially testicular xenografts, as compared with TCam-2 cells. In the immunohistochemical study, a significant correlation was found between MMP-2 expression and lymph node metastasis, which is compatible with the results for the metastasis-related gene expression from the seminoma xenografts.
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Affiliation(s)
- K Koshida
- Department of Urology, Kanazawa University School of Medicine
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41
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Egawa M, Fukushima M, Hasegawa T, Komatsu K, Namiki M. Intrarenal varix mimicking a cystic renal tumor. Int J Urol 2000; 7:345-6. [PMID: 11020061 DOI: 10.1046/j.1442-2042.2000.00203.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND A case of intrarenal varix in a 60-year-old woman is reported. METHODS/RESULTS The preoperative diagnosis was cystic tumor in the central part of the left kidney. Retrospectively, gadolinium-enhanced magnetic resonance (MR) imaging demonstrated a layered gadolinium sign, indicating the vascular nature of the mass. CONCLUSIONS Our experience shows that urologists should be aware of the possible presence of a renal cystic mass of vascular origin and of the usefulness of gadolinium-enhanced MR examination for making an identification.
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Affiliation(s)
- M Egawa
- Department of Urology, Kanazawa University School of Medicine, Japan
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42
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Yamamoto M, Shimura S, Itoh Y, Ohsaka T, Egawa M, Inoue S. Anti-obesity effects of lipase inhibitor CT-II, an extract from edible herbs, Nomame Herba, on rats fed a high-fat diet. Int J Obes (Lond) 2000; 24:758-64. [PMID: 10878683 DOI: 10.1038/sj.ijo.0801222] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To investigate the inhibitory effects of CT-II, extract of Nomame Herba, on lipase activity in vitro and on obesity in rats fed a high-fat diet in vivo. DESIGN The assay for the inhibitory effect of CT-II on lipase activity was performed by measuring released free fatty acids after the incubation of the medium with CT-II, porcine pancreatic lipase and triolein (experiment 1). In vivo experiments, lean rats or obese rats (570-718 g) were fed a high-fat diet containing 60% fat with or without CT-II for 8 weeks (experiment 2), for 14 days (experiment 3) or for 12 weeks (experiment 4), respectively. MEASUREMENT The time course of body weight, food intake, organ weight (parametrial fat, liver, heart and kidney) and plasma parameters (triglyceride, total cholesterol, glucose, AST, ALT and insulin), fecal output of total fat and total cholesterol were measured. Hepatic histological examinations were also performed. RESULTS CT-II inhibited the porcine lipase activity dose-dependently in vitro (experiment 1). Body and liver weight were reduced and hepatic histological examination showed an amelioration of fatty liver in CT II treated animals (experiment 2). CT-II significantly inhibited body weight gain and plasma triglyceride elevation in a dose-dependent manner, without affecting food intake in lean rats fed the high-fat diet. Elevated plasma AST and ALT were also decreased (experiment 3). When obese rats fed the high-fat diet were treated with CT-II for up to 6 months, body weight was initially reduced and thereafter weight gain was significantly suppressed. Total body fat was also significantly reduced and significant reduction of plasma AST and ALT was observed (experiment 4). CONCLUSIONS These results demonstrated that the lipase inhibitor CT-II is effective in preventing and ameliorating obesity, fatty liver and hypertriglyceridemia in rats fed a high-fat diet.
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Affiliation(s)
- M Yamamoto
- Department of Biotechnology, Lotte Co. Ltd, 3-1-1 Numakage, Urawa-shi, Saitama, Japan
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43
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Matsune S, Egawa M, Ohyama M, Kurono Y. Uptake of BrdU in olfactory and respiratory epithelium of rabbits with experimental sinusitis. Acta Otolaryngol 2000; 120:535-9. [PMID: 10958408 DOI: 10.1080/000164800750046063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Sinusitis was induced in six rabbits in order to evaluate its influence on the proliferation of cells in the olfactory epithelium compared with the respiratory epithelium during conservative antibiotic therapy. Then 1% ofloxacin was injected into the paranasal sinuses. Three normal rabbits were not administered any treatment and served as controls. The rabbits were sacrificed under intravenous anesthesia and the olfactory and respiratory mucosa was excised 24 hours after intravenous administration with the labeling reagent 5-bromo-2'-deoxyuridine (BrdU). The extent of cell proliferation in these tissues was estimated by immunohistochemical staining with BrdU-specific antibody. The uptake of BrdU was significantly increased (p = 0.0099) in the respiratory mucosa, but not in the olfactory mucosa. Furthermore, in olfactory epithelium, 79.2% and 16.7% of all BrdU-positive cells were olfactory and basal, respectively. Thus, turnover of epithelial cells due to sinusitis was not as accelerated in the olfactory mucosa as in the respiratory mucosa during antibiotic treatment.
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Affiliation(s)
- S Matsune
- Department of Otolaryngology, Kagoshima University Faculty of Medicine, Japan.
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44
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Abstract
A 71-year-old slender, previously healthy man was admitted to the authors' institution because of a huge painless mass in his left scapular area. Physical examination revealed a second soft tissue mass in his right scapular region and a third soft tissue mass in the anterior side of his right shoulder. Surgical treatment including marginal resection of the second and third small masses followed by wide local resection of the huge tumor was performed. Histologic examination showed that the first mass was a well differentiated lipomalike liposarcoma, whereas the second and third lesions were identified as intramuscular lipomas. A review of the literature showed two cases of retroperitoneal liposarcoma associated with multiple subcutaneous lipomas and two cases of liposarcoma involving an extremity associated with multiple subcutaneous lipomas. There is no previous report in which intramuscular liposarcoma was associated with multiple intramuscular lipomas.
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Affiliation(s)
- K Matsumoto
- Department of Orthopaedic Surgery, Shiga University of Medical Science, Japan
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45
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Tsukamoto M, Nakajima S, Murooka K, Suzuki H, Hirayama M, Egawa M, Kondo H, Kojiri K, Suda H. BE-40665D, a new antibacterial antibiotic produced by an Actinoplanes sp. J Antibiot (Tokyo) 1999; 52:178-81. [PMID: 10344573 DOI: 10.7164/antibiotics.52.178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- M Tsukamoto
- Exploratory Research Laboratories, Tsukuba Research Institute, Banyu Pharmaceutical Co., Ltd., Japan
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46
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Ueki O, Kawaguchi K, Katsumi T, Murayama K, Kameda K, Nishino A, Sakai A, Haginaka T, Miyazaki K, Asari T, Egawa M. [Clinical efficacy and reduction effect on prostatic volume of chlormadinone acetate combined with tamsulosin hydrochloride in benign prostatic hyperplasia patients insufficiently treated with tamsulosin hydrochloride only]. Hinyokika Kiyo 1998; 44:565-73. [PMID: 9783192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Alpha adrenergic blocker has become the first choice in the medical treatment of benign prostatic hyperplasia (BPH). The efficacy of alpha adrenergic blocker has been suggested to be related to the prostatic tissue components, and to be ineffective in treating the clinical symptoms caused by BPH in some cases. The efficacy and prostate reduction of an anti-androgenic agent, chlormadinone acetate, combined with alpha adrenergic blocker, tamsulosin hydrochloride, were evaluated using 40-BPH patients insufficiently treated with tamsulosin hydrochloride alone. Fifty mg of chlormadinone acetate and 0.2 mg of tamsulosin hydrochloride were administered orally once a day for 16 weeks to patients with a prostate subjective symptoms score, I-PSS, of greater than 13 or a peak flow rate of less than 12 ml/s, even after the treatment with 0.2 mg of tamsulosin hydrochloride alone for more than four weeks. Total I-PSS decreased significantly after four weeks. The total irritative symptom score did not change for 16 weeks, but the total obstructive symptom score decreased significantly, as did the total I-PSS. In objective data, the estimated volume of both total prostate and the transition zone on transrectal ultrasonogram decreased significantly at the end of the treatment, and the peak flow rate decreased significantly after 12 weeks. These findings suggest that the addition of chlormadinone acetate may be a reasonable alternative in the treatment of BPH patients responding insufficiently to tamsulosin hydrochloride alone, and that combination therapy using chlormadinone acetate and tamsulosin hydrochloride may be useful for BPH patients with serious obstructive symptoms.
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Affiliation(s)
- O Ueki
- Department of Urology, Noto General Hospital
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47
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Kumano Y, Sakamoto T, Egawa M, Tanaka M, Yamamoto I. Enhancing effect of 2-O-alpha-D-glucopyranosyl-L-ascorbic acid, a stable ascorbic acid derivative, on collagen synthesis. Biol Pharm Bull 1998; 21:662-6. [PMID: 9703245 DOI: 10.1248/bpb.21.662] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The objective of the present study was to compare 2-O-alpha-D-glucopyranosyl-L-ascorbic acid (AA-2G) with ascorbic acid (AA) and ascorbic acid 2-phosphate (AA-2P) concerning the promotion of collagen production in human skin fibroblasts. Though AA-2G was still observed to be promoting collagen synthesis at the same level on the 8th day of the culture, collagen synthesis was seen to decrease on the fifth day of culturing with AA and AA-2P. This sustained collagen synthesis-promoting action is considered to be a major feature of the novel vitamin C derivative, AA-2G by conducting an experiment in which an alpha-glucosidase inhibitor was present, it was shown that AA-2G exerts its collagen synthesis-promoting action after being decomposed to AA by alpha-glucosidase. Further, we observed that for AA-2G, even on the 8th day of the culture, the amount of AA in the fibroblasts was virtually unchanged from the beginning of the experiment, whereas, in the case of adding AA and AA-2P, virtually no AA was detectable in the culture medium on the fifth day. These findings suggests that AA-2G is decomposed to AA by alpha-glucosidase in the cells. This AA promotes collagen synthesis, which is prolonged through AA-2G's sustained decomposition.
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Affiliation(s)
- Y Kumano
- Shiseido Research Center, Yokohama, Japan
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48
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Kumano Y, Sakamoto T, Egawa M, Iwai I, Tanaka M, Yamamoto I. In vitro and in vivo prolonged biological activities of novel vitamin C derivative, 2-O-alpha-D-glucopyranosyl-L-ascorbic acid (AA-2G), in cosmetic fields. J Nutr Sci Vitaminol (Tokyo) 1998; 44:345-59. [PMID: 9742456 DOI: 10.3177/jnsv.44.345] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The biological activity of the novel vitamin C derivative, 2-O-alpha-D-glucopyranosyl-L-ascorbic acid (AA-2G), was evaluated in vitro and in vivo. The percutaneous absorption of AA-2G was determined in five Japanese males. The excretion of ascorbic acid (AA) in the subjects administered AA-2G was sustained for a longer period than in the subjects administered ascorbic acid 2-phosphate (AA-2P), which is a conventional vitamin C derivative. An analysis of the distribution of AA in the skin showed that small black specks assumed to be AA were observed in the epidermis even 3 d after applying AA-2G. The melanin synthesis in B16 melanoma cells was inhibited more by AA-2G than by AA-2P, and AA-2G also prevented more UV-induced damage of human skin keratinocytes and fibroblasts than AA-2P did. From these in vivo and in vitro results, it is supposed that the conversion of AA-2G to AA is sustained for a long time compared with that of AA-2P, and that AA-2G is an effective and available compound having vitamin C activity in human subjects.
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Affiliation(s)
- Y Kumano
- Shiseido Research Center, Yokohama, Japan
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49
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Kuboi M, Egawa M, Udaka N, Ito T, Inoue S, Sekihara H. Effects of a 7-day infusion of glucose on insulin secretion in vivo and in vitro in ventromedial hypothalamic-lesioned obese rats. Acta Diabetol 1998; 35:26-33. [PMID: 9625286 DOI: 10.1007/s005920050097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Excessive stimulation of insulin secretion may be one cause of the beta-cell dysfunction induced by hyperglycemia. We investigated a possible link between the prior endogenous hypersecretion of insulin and this dysfunction by performing a 7-day glucose infusion (50% wt/vol, 1.2 ml/h) on ventromedial hypothalamic VMH-lesioned hyperinsulinemic rats. Intravenous glucose tolerance tests (i.v.GTT 1.0 g/kg) revealed that a 3-day glucose infusion enhanced the insulin responses in both the sham- and VMH-lesioned rats compared with saline infusions. A similar 7-day glucose infusion enhanced the insulin response to glucose in sham-lesioned rats but not in VMH-lesioned rats. Batch-incubation of islets isolated from sham-lesioned rats showed an enhanced insulin response to glucose after 7 days of glucose treatment compared with the saline infusions. Conversely, the glucose infusion in VMH-lesioned rats markedly suppressed the in vitro insulin response. In sham- and VMH-lesioned rats, similar islet insulin contents were produced by saline and glucose treatments. Electron microscopy revealed that glucose infusions impaired the granule-releasing function of the beta-cells in VMH-lesioned rats, while insulin synthesis was accelerated in either group. These findings support the notion that excessive secretion is partly responsible for the beta-cell dysfunction induced by hyperglycemia without signs of exhaustion.
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Affiliation(s)
- M Kuboi
- The Third Department of Internal Medicine, Yokohama City University, Yokohama, Japan
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50
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Abe M, Nakai H, Tabata R, Saito K, Egawa M. Effect of 5-[3-[((2S)-1,4-benzodioxan-2-ylmethyl)amino]propoxy]-1,3-benzodioxole HCl (MKC-242), a novel 5-HT1A-receptor agonist, on aggressive behavior and marble burying behavior in mice. Jpn J Pharmacol 1998; 76:297-304. [PMID: 9593223 DOI: 10.1254/jjp.76.297] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Behavioral effects of 5-[3-[((2S)-1,4-benzodioxan-2-ylmethyl)amino]propoxy]-1,3-be nzodioxole HCl (MKC-242), a novel 5-HT1A-receptor agonist, were evaluated using animal models of anxiety and obsessive compulsive disorder and compared against reference compounds. MKC-242 suppressed foot shock-induced fighting behavior without loss of motor coordination in mice as the reference compounds did. The ED50 values of MKC-242, buspirone, tandospirone and diazepam were 1.7, 42, 80 and 2.0 mg/kg, p.o., respectively. The duration of the suppression of fighting by MKC-242 was longer than those of buspirone and tandospirone and comparable to that of diazepam. Similar results were also obtained with the water-lick conflict test in rats. The plasma concentration of MKC-242 in rats was much higher than the reported value of buspirone during 0.25-6 hr after oral administration. In addition, MKC-242 reduced marble burying behavior without reduction of motor activity. Fluoxetine, tandospirone and diazepam also reduced the behavior at non-sedative doses. These findings indicate that MKC-242 possesses a longer-lasting anxiolytic effect than azapirones. This might be due to the high concentration of the compound in plasma. In addition, it is also suggested that MKC-242 possesses an antiobsessional effect.
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Affiliation(s)
- M Abe
- Pharmaceuticals Laboratory I, Yokohama Research Center, Mitsubishi Chemical Corporation, Japan
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