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Shimano S, Yamada T, Cho K, Sengoku K, Mariya T, Saito T. Changes in preterm and extremely preterm birth rates in Japan after the introduction of obstetrical practice guidelines in 2008. J Obstet Gynaecol Res 2023; 49:2283-2294. [PMID: 37433566 DOI: 10.1111/jog.15722] [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: 02/15/2023] [Accepted: 06/11/2023] [Indexed: 07/13/2023]
Abstract
AIM Obstetrical guidelines were established in Japan in 2008, and obstetrical diagnoses and treatments were subsequently standardized nationally. We examined changes in the preterm birth rate (PTBR) and extremely preterm birth rate (EPTBR) following the introduction of such guidelines. METHODS Information on 50 706 432 live births in Japan between 1979 and 2021, including Japanese reproductive medicine, the childbearing age of pregnant women, and the employment status of reproductive-age women between 2007 and 2020, were obtained from the Japanese government and academic societies. Regression analysis was used to compare chronological changes nationally and those of eight Japanese regions. Regional and national average PTBRs and EPTBRs from 2007 to 2020 were compared by using a repeated measures analysis of variance. RESULTS From 1979 to 2007, PTBRs and EPTBRs in Japan increased significantly. However, from 2008, the national PTBR and EPTBR decreased until 2020 (p < 0.001) and 2019 (p = 0.02), respectively. From 2007 to 2020, overall PTBR and EPTBR were 5.68% and 0.255%, respectively. A significant difference in the PTBR and EPTBR existed between the eight Japanese regions. During this period, the number of pregnancies using assisted reproductive technology increased from 19 595 to 60 381, pregnant women became older, the employment rate of those of reproductive age increased, and nonregular employment was 54%, which was 2.5 times higher than for men. CONCLUSIONS In Japan, after obstetrical guidelines were enacted in 2008, PTRBs decreased significantly even under the pressure of increasing preterm births. Countermeasures may be necessary for regions showing high PTBRs.
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Affiliation(s)
- Satoshi Shimano
- Department of Obstetrics and Gynecology, Nakashibetsu Municipal Hospital, Nakashibetsu, Hokkaido, Japan
| | - Takashi Yamada
- Department of Obstetrics and Gynecology, JCHO Hokkaido Hospital, Sapporo, Hokkaido, Japan
| | - Kazutoshi Cho
- Department of Pediatrics, JCHO Hokkaido Hospital, Sapporo, Hokkaido, Japan
| | - Kazuo Sengoku
- Mori Obstetrical and Gynecological Hospital, Asahikawa, Hokkaido, Japan
| | - Tasuku Mariya
- Department of Obstetrics and Gynecology, Sapporo Medical University, School of Medicine, Sapporo, Hokkaido, Japan
| | - Tsuyoshi Saito
- Department of Obstetrics and Gynecology, Sapporo Medical University, School of Medicine, Sapporo, Hokkaido, Japan
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Yamada H, Deguchi M, Saito S, Takeshita T, Mitsui M, Saito T, Nagamatsu T, Takakuwa K, Nakatsuka M, Yoneda S, Egashira K, Tachibana M, Matsubara K, Honda R, Fukui A, Tanaka K, Sengoku K, Endo T, Yata H. High doses of intravenous immunoglobulin stimulate regulatory T cell and suppress natural killer cell in women with recurrent pregnancy loss. J Reprod Immunol 2023; 158:103977. [PMID: 37354783 DOI: 10.1016/j.jri.2023.103977] [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: 03/29/2023] [Revised: 05/28/2023] [Accepted: 06/09/2023] [Indexed: 06/26/2023]
Abstract
The aim was to evaluate whether natural killer (NK) cells and regulatory T (Treg) cells were involved in mechanisms underlying beneficial effects of a high dose of intravenous immunoglobulin (IVIG) on recurrent pregnancy losses (RPL) of unexplained etiology. In a double-blind, randomized, placebo-controlled trial of IVIG (400 mg/kg, for 5 days in 4-6 weeks of gestation) in women with RPL, blood samples were collected pre-infusion, one week after infusion (1 w), and eight weeks of gestation/when miscarried (8 w). Levels of NK and Treg cells in peripheral blood were compared between women with IVIG (n = 50) and placebo (n = 49), and between women with IVIG who gave live birth (n = 29) and those who had miscarriage with normal chromosome (n = 12). Effector Treg cell percentages in IVIG group at 1 w (mean 1.43 % vs. 1.03 %) and at 8 w (1.91 % vs. 1.18 %) were higher than those in placebo group (p < 0.01). Total Treg cell percentages in IVIG group at 1 w (4.75 % vs. 4.08 %) and at 8 w (5.55 % vs. 4.47 %) were higher than those in placebo group (p < 0.05). In women with live birth, total Treg cell percentages increased at 8 w (5.52 %, p < 0.001) compared with pre-infusion (4.54 %) and 1 w (4.47 %), while NK cell activity decreased at 1 w (20.18 %, p < 0.001) compared with pre-infusion (26.59 %). IVIG increased Treg cell percentages and suppressed NK cell activity very early in pregnancy, and these were associated with subsequent live birth. Stimulation of Treg cells and suppression of NK cell activity very early in pregnancy may be a mechanism of pharmacological effects of high dose IVIG.
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Affiliation(s)
- Hideto Yamada
- Center for Recurrent Pregnancy Loss, Teine Keijinkai Hospital, 1-40 Maeda 1-jho 12-chome Teine-ku, Sapporo, Japan.
| | - Masashi Deguchi
- Department of Obstetrics and Gynecology, Kobe University School of Medicine, 7-5-1 Kusunoki-cho Chuo-ku, Kobe, Japan
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, The Toyama University, 2630 Sugitani, Toyama, Japan
| | - Toshiyuki Takeshita
- Department of Obstetrics and Gynecology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Mari Mitsui
- Division of Reproductive Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, Japan
| | - Tsuyoshi Saito
- Department of Obstetrics and Gynecology, Sapporo Medical University, Minami 1-jo Nishi 17-chome, Chuo-ku, Sapporo, Japan
| | - Takeshi Nagamatsu
- Department of Obstetrics and Gynecology, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Koichi Takakuwa
- Niigata University, 1-757 Asahimachi-dori, Chuo-ku, Niigata, Japan
| | - Mikiya Nakatsuka
- Okayama University, Graduate School of Health Sciences, 2-5-1 Shikata, Kita-ku, Okayama, Japan
| | - Satoshi Yoneda
- Department of Obstetrics and Gynecology, The Toyama University, 2630 Sugitani, Toyama, Japan
| | - Katsuko Egashira
- Department of Obstetrics and Gynecology, Hamanomachi Hospital, 3-3-1 Nagahama, Chuo-ku, Fukuoka, Japan
| | - Masahito Tachibana
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Keiichi Matsubara
- Department of Obstetrics and Gynecology, Ehime University School of Medicine, 454 Shitsukawa, Toon, Japan
| | - Ritsuo Honda
- Department of Obstetrics and Gynecology, Kumamoto University School of Medicine, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Atsushi Fukui
- Department of Obstetrics and Gynecology, Hyogo Medical University School of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Japan
| | - Kanji Tanaka
- Department of Obstetrics and Gynecology, Hirosaki University School of Medicine, 53 Honcho, Hirosaki, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, 1-1-1 Midorigaoka-higashi 2-jo, Asahikawa, Japan
| | - Toshiaki Endo
- Department of Obstetrics and Gynecology, Sapporo Medical University, Minami 1-jo Nishi 17-chome, Chuo-ku, Sapporo, Japan
| | - Hiroaki Yata
- Research & Development Division, Japan Blood Products Organization, 15F Tamachi Station Tower N 3-1-1 Shibaura, Minato-ku, Tokyo, Japan
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Yamada H, Deguchi M, Saito S, Takeshita T, Mitsui M, Saito T, Nagamatsu T, Takakuwa K, Nakatsuka M, Yoneda S, Egashira K, Tachibana M, Matsubara K, Honda R, Fukui A, Tanaka K, Sengoku K, Endo T, Yata H. Intravenous immunoglobulin treatment in women with four or more recurrent pregnancy losses: A double-blind, randomised, placebo-controlled trial. EClinicalMedicine 2022; 50:101527. [PMID: 35795714 PMCID: PMC9251568 DOI: 10.1016/j.eclinm.2022.101527] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/24/2022] [Accepted: 06/01/2022] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND There is no effective treatment for women with unexplained recurrent pregnancy loss (RPL). We aimed to investigate whether treatment with a high dose of intravenous immunoglobulin (IVIG) in early pregnancy can improve pregnancy outcomes in women with unexplained RPL. METHODS In a double-blind, randomised, placebo-controlled trial, women with primary RPL of unexplained aetiology received 400 mg/kg of IVIG daily or placebo for five consecutive days starting at 4-6 weeks of gestation. They had experienced four or more miscarriages except biochemical pregnancy loss and at least one miscarriage of normal chromosome karyotype. The primary outcome was ongoing pregnancy rate at 22 weeks of gestation, and the live birth rate was the secondary outcome. We analysed all women receiving the study drug (intention-to-treat, ITT) and women except those who miscarried due to fetal chromosome abnormality (modified-ITT). This study is registered with ClinicalTrials.gov number, NCT02184741. FINDINGS From June 3, 2014 to Jan 29, 2020, 102 women were randomly assigned to receive IVIG (n = 53) or placebo (n = 49). Three women were excluded; therefore 50 women received IVIG and 49 women received placebo in the ITT population. The ongoing pregnancy rate at 22 weeks of gestation (31/50 [62·0%] vs. 17/49 [34·7%]; odds ratio [OR] 3·07, 95% CI 1·35-6·97; p = 0·009) and the live birth rate (29/50 [58·0%] vs. 17/49 [34·7%]; OR 2·60, 95% CI 1·15-5·86; p = 0·03) in the IVIG group were higher than those in the placebo group in the ITT population. The ongoing pregnancy rate at 22 weeks of gestation (OR 6·27, 95% CI 2·21-17·78; p < 0·001) and the live birth rate (OR 4·85, 95% CI 1·74-13·49; p = 0·003) significantly increased in women who received IVIG at 4-5 weeks of gestation as compared with placebo, but these increases were not evident in women who received IVIG at 6 weeks of gestation. Four newborns in the IVIG group and none in the placebo group had congenital anomalies (p = 0·28). INTERPRETATION A high dose of IVIG in very early pregnancy improved pregnancy outcome in women with four or more RPLs of unexplained aetiology. FUNDING The Japan Blood Products Organization.
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Affiliation(s)
- Hideto Yamada
- Centre for Recurrent Pregnancy Loss, Teine Keijinkai Hospital, 1-40 Maeda 1-jho 12-chome Teine-ku, Sapporo, Japan
- Corresponding author at: Director of Centre for Recurrent Pregnancy Loss, Teine Keijinkai Hospital, 1-40 Maeda 1-jho 12-chome Teine-ku, Sapporo 006-8555, Japan.
| | - Masashi Deguchi
- Department of Obstetrics and Gynecology, Kobe University School of Medicine, 7-5-1 Kusunoki-cho Chuo-ku, Kobe, Japan
| | - Shigeru Saito
- Department of Obstetrics and Gynecology, the Toyama University, 2630, Sugitani, Toyama, Japan
| | - Toshiyuki Takeshita
- Department of Obstetrics and Gynecology, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, Japan
| | - Mari Mitsui
- Division of Reproductive Medicine and Maternal Care, National Center for Child Health and Development, 2-10-1 Okura, Setagaya-ku, Tokyo, Japan
| | - Tsuyoshi Saito
- Department of Obstetrics and Gynecology, Sapporo Medical University, Minami 1-jo Nishi 17-chome, Chuo-ku, Sapporo, Japan
| | - Takeshi Nagamatsu
- Department of Obstetrics and Gynecology, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan
| | - Koichi Takakuwa
- Department of Obstetrics and Gynecology, Niigata University, 1-757 Asahimachi-dori, Chuo-ku, Niigata, Japan
| | - Mikiya Nakatsuka
- Okayama University, Graduate School of Health Sciences, 2-5-1 Shikata, Kita-ku, Okayama, Japan
| | - Satoshi Yoneda
- Department of Obstetrics and Gynecology, the Toyama University, 2630, Sugitani, Toyama, Japan
| | - Katsuko Egashira
- Department of Obstetrics and Gynecology, Kyushu University Graduate School of Medicine, 3-1-1 Maidashi, Higashi-ku, Fukuoka, Japan
| | - Masahito Tachibana
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, 1-1 Seiryo-machi, Aoba-ku, Sendai, Japan
| | - Keiichi Matsubara
- Department of Obstetrics and Gynecology, Ehime University School of Medicine, 454, Shitsukawa, Toon, Japan
| | - Ritsuo Honda
- Department of Obstetrics and Gynecology, Kumamoto University School of Medicine, 1-1-1 Honjo, Chuo-ku, Kumamoto, Japan
| | - Atsushi Fukui
- Department of Obstetrics and Gynecology, Hirosaki University School of Medicine, 53,Honcho, Hirosaki, Japan
| | - Kanji Tanaka
- Department of Obstetrics and Gynecology, Hirosaki University School of Medicine, 53,Honcho, Hirosaki, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, 1-1-1 Midorigaoka-higashi 2-jo, Asahikawa, Japan
| | - Toshiaki Endo
- Department of Obstetrics and Gynecology, Sapporo Medical University, Minami 1-jo Nishi 17-chome, Chuo-ku, Sapporo, Japan
| | - Hiroaki Yata
- Research & Development Division, Japan Blood Products Organization, 15F Tamachi Station Tower N 3-1-1 Shibaura, Minato-ku, Tokyo, Japan
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Tamura N, Hanaoka T, Ito K, Araki A, Miyashita C, Ito S, Kobayashi S, Ito Y, Minakami H, Cho K, Endo T, Baba T, Sengoku K, Miyamoto T, Ogasawara K, Kishi R. Mediating Factors Between Parental Socioeconomic Status and Small for Gestational Age in Infants: Results from the Hokkaido Study on Environment and Children's Health. Matern Child Health J 2021; 25:645-655. [PMID: 33392928 DOI: 10.1007/s10995-020-03035-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/05/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVES Previous studies indicated a significant association between small for gestational age (SGA) in infants and their parents' socioeconomic status (SES). Thus, this study aimed to examine if parental factors, such as maternal smoking, and the pre-pregnancy body mass index (BMI) could mediate the associations between parental SES and SGA. METHODS The participants of this study were pregnant women who enrolled in an ongoing birth cohort study, the Hokkaido study, during the first trimester of their pregnancies. A total of 14,593 live singleton births were included in the statistical analysis, of which 1011 (6.9%) were SGA. Two structural equation models were employed to evaluate the associations between parental SES, parental characteristics, and SGA. RESULTS The effect of low SES on SGA was directly mediated by maternal pre-pregnancy BMI, smoking during the third trimester, and alcohol consumption during the first trimester in the first model, which was based the assumption of independent associations between mediating factors. In the second model, which additionally considered the mediating factors from the first model, smoking during pregnancy mediated decline in parental SES, consequently increased SGA. Moreover, an increase in pregnancy smoking status increased the prevalence of lower maternal pre-pregnancy BMI and its effect on SGA. CONCLUSIONS FOR PRACTICE In this study, we observed the independent mediating effect of maternal pre-pregnancy BMI, smoking, and alcohol consumption during pregnancy on low SES and, consequently, SGA, with the additional mediating pathway of SES to smoking to low BMI on SGA.
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Affiliation(s)
- Naomi Tamura
- Hokkaido University Center for Environmental and Health Sciences, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,Graduate School of Health Science, Hokkaido University, Sapporo, Japan.,Research Center for Medical and Health Data Science, The Institute of Statistical Mathematics, Tokyo, Japan
| | - Tomoyuki Hanaoka
- Hokkaido University Center for Environmental and Health Sciences, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
| | - Kumiko Ito
- Hokkaido University Center for Environmental and Health Sciences, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Atsuko Araki
- Hokkaido University Center for Environmental and Health Sciences, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.,Graduate School of Health Science, Hokkaido University, Sapporo, Japan
| | - Chihiro Miyashita
- Hokkaido University Center for Environmental and Health Sciences, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
| | - Sachiko Ito
- Hokkaido University Center for Environmental and Health Sciences, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
| | - Sumitaka Kobayashi
- Hokkaido University Center for Environmental and Health Sciences, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan
| | - Yoichi Ito
- Research Center for Medical and Health Data Science, The Institute of Statistical Mathematics, Tokyo, Japan
| | - Hisanori Minakami
- Departments of Obstetrics and Gynecology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Kazutoshi Cho
- Departments of Obstetrics and Gynecology, Graduate School of Medicine, Hokkaido University, Sapporo, Japan
| | - Toshiaki Endo
- Departments of Obstetrics and Gynecology, School of Medicine, Sapporo Medical University, Sapporo, Japan
| | - Tsuyoshi Baba
- Departments of Obstetrics and Gynecology, School of Medicine, Sapporo Medical University, Sapporo, Japan
| | - Kazuo Sengoku
- Departments of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Toshinobu Miyamoto
- Departments of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | | | - Reiko Kishi
- Hokkaido University Center for Environmental and Health Sciences, Kita 12, Nishi 7, Kita-ku, Sapporo, Hokkaido, 060-0812, Japan.
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Sato Y, Yoshioka E, Saijo Y, Miyamoto T, Sengoku K, Azuma H, Tanahashi Y, Ito Y, Kobayashi S, Minatoya M, Bamai YA, Yamazaki K, Ito S, Miyashita C, Araki A, Kishi R. Trajectories of the Psychological Status of Mothers of Infants With Nonsyndromic Orofacial Clefts: A Prospective Cohort Study From the Japan Environment and Children's Study. Cleft Palate Craniofac J 2020; 58:369-377. [PMID: 32844663 DOI: 10.1177/1055665620951399] [Citation(s) in RCA: 2] [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: 11/16/2022] Open
Abstract
OBJECTIVE This study examined psychological status trajectories of mothers of infants with nonsyndromic orofacial clefts in Japan. DESIGN Prospective cohort study. SETTING Data from the Japan Environment and Children's Study. PARTICIPANTS Infants with a nonsyndromic cleft (N = 148) including cleft lip and palate (CLP; n = 72), cleft lip (CL; n = 46), and cleft palate (CP; n = 30). The control group included unaffected infants (N = 84 454). MAIN OUTCOME MEASURES At 15 weeks and 27 weeks of pregnancy and 12 months after birth, the Kessler Psychological Distress Scale (clinical cutoff ≥5) was used. At 1 month and 6 months after birth, the Edinburgh Postnatal Depression Scale (clinical cutoff ≥9) was used. RESULTS Prenatal diagnosis rates were unavailable. Mothers of infants with CLP had higher psychological distress than controls at 27 weeks of pregnancy (prevalence ratio [PR] = 1.36, 95% CI: 1.06-1.74) and postnatal depression at 1 month after birth (PR = 2.21, 95% CI: 1.53-3.19). Mothers of infants with CP showed heightened psychological distress at 27 weeks of pregnancy (PR = 1.62, 95% CI: 1.21-2.17) and postnatal depression 6 months after birth (PR = 1.86, 95% CI: 1.01-3.43). There was no significant association between CL and maternal psychological status. At 12 months after birth, no differences in distress were found between mothers of infants with a cleft and controls. CONCLUSIONS Mothers of infants with orofacial clefts may need psychosocial support, particularly during pregnancy and the first year after birth.
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Affiliation(s)
- Yukihiro Sato
- Division of Public Health and Epidemiology, Department of Social Medicine, 38051Asahikawa Medical University, Asahikawa, Japan
| | - Eiji Yoshioka
- Division of Public Health and Epidemiology, Department of Social Medicine, 38051Asahikawa Medical University, Asahikawa, Japan
| | - Yasuaki Saijo
- Division of Public Health and Epidemiology, Department of Social Medicine, 38051Asahikawa Medical University, Asahikawa, Japan
| | - Toshinobu Miyamoto
- Department of Obstetrics and Gynecology, 543377Asahikawa Medical University, Asahikawa, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, 543377Asahikawa Medical University, Asahikawa, Japan
| | - Hiroshi Azuma
- Department of Pediatrics, 543377Asahikawa Medical University, Asahikawa, Japan
| | - Yusuke Tanahashi
- Department of Pediatrics, 543377Asahikawa Medical University, Asahikawa, Japan
| | - Yoshiya Ito
- Faculty of Nursing, 38325Japanese Red Cross Hokkaido College of Nursing, Hokkaido, Japan
| | - Sumitaka Kobayashi
- Center for Environmental and Health Sciences, 12810Hokkaido University, Sapporo, Japan
| | - Machiko Minatoya
- Faculty of Health Sciences, 12810Hokkaido University, Sapporo, Japan
| | - Yu Ait Bamai
- Center for Environmental and Health Sciences, 12810Hokkaido University, Sapporo, Japan
| | - Keiko Yamazaki
- Center for Environmental and Health Sciences, 12810Hokkaido University, Sapporo, Japan
| | - Sachiko Ito
- Center for Environmental and Health Sciences, 12810Hokkaido University, Sapporo, Japan
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, 12810Hokkaido University, Sapporo, Japan
| | - Atsuko Araki
- Center for Environmental and Health Sciences, 12810Hokkaido University, Sapporo, Japan
| | - Reiko Kishi
- Center for Environmental and Health Sciences, 12810Hokkaido University, Sapporo, Japan
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6
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Saijo Y, Yoshioka E, Sato Y, Miyamoto T, Sengoku K, Ito Y, Itoh S, Miyashita C, Araki A, Kishi R. Factors correlating with serum birch pollen IgE status in pregnant women in Hokkaido, Japan: The Japan Environment and Children's Study (JECS). World Allergy Organ J 2020; 13:100128. [PMID: 32647557 PMCID: PMC7338638 DOI: 10.1016/j.waojou.2020.100128] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2019] [Revised: 03/30/2020] [Accepted: 05/07/2020] [Indexed: 11/06/2022] Open
Abstract
BACKGROUND Birch pollen allergy affects pregnant women, and such allergy may affect the development of allergic diseases in their children. Using nationwide birth cohort data, this study aimed to investigate the prevalence of birch pollen IgE positivity and to identify correlating factors in pregnant women in Hokkaido, Japan, a high-latitude island. METHODS Participants included 6856 pregnant women. Participants responded to questionnaires regarding lifestyle factors and history of allergies. Data regarding parity, height, and pre-pregnancy weight were collected from medical records. Blood samples were obtained from participants during the first trimester of pregnancy, and serum allergen-specific IgE titers were determined. RESULTS The serum of 30.2% participants was positive for birch pollen IgE (≥0.35 UA/mL). Such positivity significantly correlated with a history of other allergic diseases, particularly food allergy and allergic rhinitis/hay fever. In multivariate logistic regression analysis, pre-pregnancy high body mass index (BMI ≥ 25) significantly correlated with birch pollen IgE positivity [odds ratio (OR), 1.24; 95% CI, 1.05-1.47; reference BMI, 18.5-24.9] and higher income (≥10 million yen per year; OR,0.55; 95% CI, 0.37-0.81; reference, household income < 2 million yen per year), and second quintile level physical activity (OR,0.75; 95% CI, 0.63-0.88; reference, the first quintile of physical activity) had significant protective effects. CONCLUSIONS Birch pollen IgE positivity in pregnant women was positively associated with food allergy, allergic rhinitis, pre-pregnant high BMI, and was negatively associated with light exercise and high household income in Hokkaido. TRIAL REGISTRATION UMIN000030786.
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Affiliation(s)
- Yasuaki Saijo
- Department of Social Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Eiji Yoshioka
- Department of Social Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Yukihiro Sato
- Department of Social Medicine, Asahikawa Medical University, Asahikawa, Japan
| | - Toshinobu Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Yoshiya Ito
- Faculty of Nursing, Japanese Red Cross Hokkaido College of Nursing, Kitami, Japan
| | - Sachiko Itoh
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
| | - Atsuko Araki
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Japan
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7
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Sato Y, Yoshioka E, Saijo Y, Miyamoto T, Sengoku K, Azuma H, Tanahashi Y, Ito Y, Kobayashi S, Minatoya M, Bamai YA, Yamazaki K, Itoh S, Miyashita C, Araki A, Kishi R. Population Attributable Fractions of Modifiable Risk Factors for Nonsyndromic Orofacial Clefts: A Prospective Cohort Study From the Japan Environment and Children's Study. J Epidemiol 2020; 31:272-279. [PMID: 32336698 PMCID: PMC7940975 DOI: 10.2188/jea.je20190347] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Background Population impact of modifiable risk factors on orofacial clefts is still unknown. This study aimed to estimate population attributable fractions (PAFs) of modifiable risk factors for nonsyndromic cleft lip with or without cleft palate (CL±P) and cleft palate only (CP) in Japan. Methods We conducted a prospective cohort study using data from the Japan Environment and Children’s Study, which recruited pregnant women from 2011 to 2014. We estimated the PAFs of maternal alcohol consumption, psychological distress, maternal active and passive smoking, abnormal body mass index (BMI) (<18.5 and ≥25 kg/m2), and non-use of a folic acid supplement during pregnancy for nonsyndromic CL±P and CP in babies. Results A total of 94,174 pairs of pregnant women and their single babies were included. Among them, there were 146 nonsyndromic CL±P cases and 41 nonsyndromic CP cases. The combined adjusted PAF for CL±P of the modifiable risk factors excluding maternal alcohol consumption was 34.3%. Only maternal alcohol consumption was not associated with CL±P risk. The adjusted PAFs for CL±P of psychological distress, maternal active and passive smoking, abnormal BMI, and non-use of a folic acid supplement were 1.4% (95% confidence interval [CI], −10.7 to 15.1%), 9.9% (95% CI, −7.0 to 26.9%), 10.8% (95% CI, −9.9 to 30.3%), 2.4% (95% CI, −7.5 to 14.0%), and 15.1% (95% CI, −17.8 to 41.0%), respectively. We could not obtain PAFs for CP due to the small sample size. Conclusions We reported the population impact of the modifiable risk factors on CL±P, but not CP. This study might be useful in planning the primary prevention of CL±P.
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Affiliation(s)
- Yukihiro Sato
- Division of Public Health and Epidemiology, Department of Social Medicine, Asahikawa Medical University
| | - Eiji Yoshioka
- Division of Public Health and Epidemiology, Department of Social Medicine, Asahikawa Medical University
| | - Yasuaki Saijo
- Division of Public Health and Epidemiology, Department of Social Medicine, Asahikawa Medical University
| | | | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University
| | - Hiroshi Azuma
- Department of Pediatrics, Asahikawa Medical University
| | | | - Yoshiya Ito
- Faculty of Nursing, Japanese Red Cross Hokkaido College of Nursing
| | | | | | - Yu Ait Bamai
- Center for Environmental and Health Sciences, Hokkaido University
| | - Keiko Yamazaki
- Center for Environmental and Health Sciences, Hokkaido University
| | - Sachiko Itoh
- Center for Environmental and Health Sciences, Hokkaido University
| | | | - Atsuko Araki
- Center for Environmental and Health Sciences, Hokkaido University
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University
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Minase M, Miyamoto T, Hayashi N, Minase G, Nishiwaki K, Sengoku K. A patient with a didelphys vaginal septum and infertility diagnosed by laparoscopy and magnetic resonance imaging. CLIN EXP OBSTET GYN 2019. [DOI: 10.12891/ceog4842.2019] [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: 11/01/2022]
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9
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Miyamoto T, Iijima M, Shin T, Minase G, Ueda H, Saijo Y, Okada H, Sengoku K. An association study of the single-nucleotide polymorphism c190C>T (Arg64Cys) in the human testis-specific histone variant, H3t, of Japanese patients with Sertoli cell-only syndrome. Asian J Androl 2019; 20:527-528. [PMID: 29405169 PMCID: PMC6116695 DOI: 10.4103/aja.aja_66_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Toshinobu Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa 078-8510, Japan
| | - Masashi Iijima
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa 920-8641, Japan
| | - Takeshi Shin
- Department of Urology, Dokkyo Medical University Koshigaya Hospital, Koshigaya 343-8555, Japan
| | - Gaku Minase
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa 078-8510, Japan
| | - Hiroto Ueda
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa 078-8510, Japan
| | - Yasuaki Saijo
- Division of Public Health and Epidemiology, Department of Social Medicine, Asahikawa Medical University, Asahikawa 078-8510, Japan
| | - Hiroshi Okada
- Department of Urology, Dokkyo Medical University Koshigaya Hospital, Koshigaya 343-8555, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa 078-8510, Japan
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10
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Kawanishi Y, Yoshioka E, Saijo Y, Itoh T, Miyamoto T, Sengoku K, Ito Y, Ito S, Miyashita C, Araki A, Endo T, Cho K, Minakami H, Kishi R. The relationship between prenatal psychological stress and placental abruption in Japan, The Japan Environment and Children's Study (JECS). PLoS One 2019; 14:e0219379. [PMID: 31283785 PMCID: PMC6613679 DOI: 10.1371/journal.pone.0219379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Accepted: 06/23/2019] [Indexed: 11/18/2022] Open
Abstract
Background Prenatal psychological stress may increase the risk of placental abruption (PA). This study aimed to clarify the effects of psychological distress during pregnancy and exposure to stressful life events in the year before or during pregnancy on the occurrence of PA in Japanese women. Methods Using a nationwide prospective birth cohort study, we obtained data from 103,099 women between January 2011 and March 2014. Information on exposure to 14 stressful life events and psychological distress (Kessler 6 scale) was collected using a self-administered questionnaire during pregnancy. Clinical diagnoses of PA were obtained from medical records. A total of 80,799 women with singleton births were analyzed using logistic regression models that adjusted for possible confounders. Results PA was diagnosed in 335 (0.4%) women. There was no significant difference in the Kessler 6 score during pregnancy between the PA group and non-PA group. Exposure to the death of a child in the year before or during pregnancy was significantly associated with PA in multigravid women (adjusted odds ratio [aOR] 3.57; 95% confidence interval [CI] 1.50–8.34). A spouse’s loss of employment was significantly associated with PA in parous women (aOR 3.25; 95% CI 1.40–7.56). Conclusions This study identified the possible effects of exposure to the death of a child on PA occurrence that adjusted for important confounding factors.
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Affiliation(s)
- Yasuyuki Kawanishi
- Department of Social Medicine, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
- Center for Baby Science, Doshisha University, Kizugawa, Kyoto, Japan
- Nagaoka Healthcare Center, Nagaokakyo, Kyoto, Japan
- * E-mail:
| | - Eiji Yoshioka
- Department of Social Medicine, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Yasuaki Saijo
- Department of Social Medicine, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Toshihiro Itoh
- Laboratory of Public Health, Department of Nursing, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Toshinobu Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Yoshiya Ito
- Faculty of Nursing, Japanese Red Cross Hokkaido College of Nursing, Kitami, Hokkaido, Japan
| | - Sachiko Ito
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Atsuko Araki
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Toshiaki Endo
- Department of Obstetrics and Gynecology, Sapporo Medical University, Sapporo, Hokkaido, Japan
| | - Kazutoshi Cho
- Center for Perinatal Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Hisanori Minakami
- Center for Perinatal Medicine, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
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11
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Miyamoto T, Shin T, Iijima M, Minase G, Okada H, Saijo Y, Sengoku K. The poly(A) polymerase beta gene may not be associated with azoospermia caused by Sertoli-cell-only syndrome in Japanese patients by comparing patients and normal controls. J OBSTET GYNAECOL 2019; 39:434-436. [DOI: 10.1080/01443615.2018.1504205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- T. Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - T. Shin
- Department of Urology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan
| | - M. Iijima
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - G. Minase
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - H. Okada
- Department of Urology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan
| | - Y. Saijo
- Department of Social Medicine, Division of Public Health and Epidemiology, Asahikawa Medical University, Asahikawa, Japan
| | - K. Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
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12
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Ito K, Hanaoka T, Tamura N, Sasaki S, Miyashita C, Araki A, Ito S, Minakami H, Cho K, Endo T, Baba T, Miyamoto T, Sengoku K, Tamakoshi A, Kishi R. Association Between Maternal Serum Folate Concentrations in the First Trimester and the Risk of Birth Defects: The Hokkaido Study of Environment and Children's Health. J Epidemiol 2018; 29:164-171. [PMID: 30318493 PMCID: PMC6414805 DOI: 10.2188/jea.je20170185] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Background Low red blood cell folate concentrations during early pregnancy might cause neural tube defects. However, the association between folate concentrations and birth defects of other neural crest cell-derived organs remains unknown. We investigated the associations between birth defects and first-trimester serum folate concentrations in a birth-cohort study in Japan. Methods In total, 14,896 women who were prior to 13 weeks of gestation were enrolled from 2003 through 2012. Birth defect information was obtained from medical records and questionnaires. The association between folate levels in the first trimester and birth defects categorized as ICD-10 cord defects and neural crest cell-derived organ defects was examined. The crude and adjusted odds ratios (ORs) and 95% confidence intervals (CIs) per log-transformed folate concentration were calculated using logistic regression. Results Blood samples were obtained at a mean of 10.8 weeks of gestation. Median serum folate level was 16.5 (interquartile range, 13.4–21.5) nmol/L, and the deficiency level (less than 6.8 nmol/L) was 0.7%. There were 358 infants with birth defects. The adjusted odds ratio for any birth defect, ventricular septal defects, and cleft lip was 0.99 (95% CI, 0.74–1.32), 0.63 (95% CI, 0.30–1.33), and 4.10 (95% CI, 0.96–17.58), respectively. There were no significant associations between first-trimester maternal serum folate and the risk of birth defects. Conclusions We were unable to demonstrate a relationship between maternal serum folate in the first trimester and birth defects. Potential confounding factors may have influenced our results.
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Affiliation(s)
- Kumiko Ito
- Department of Public Health, Hokkaido University Graduate School of Medicine.,Hokkaido University Center for Environmental and Health Sciences.,Department of Nursing, Faculty of Health Science, Hokkaido University of Science
| | - Tomoyuki Hanaoka
- Hokkaido University Center for Environmental and Health Sciences
| | - Naomi Tamura
- Hokkaido University Center for Environmental and Health Sciences.,Department of Health Sciences, Hokkaido University Graduate School of Medicine
| | - Seiko Sasaki
- Department of Public Health, Hokkaido University Graduate School of Medicine
| | | | - Atsuko Araki
- Hokkaido University Center for Environmental and Health Sciences
| | - Sachiko Ito
- Hokkaido University Center for Environmental and Health Sciences
| | - Hisanori Minakami
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine
| | - Kazutoshi Cho
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine
| | - Toshiaki Endo
- Department of Obstetrics and Gynecology, School of Medicine, Sapporo Medical University
| | - Tsuyoshi Baba
- Department of Obstetrics and Gynecology, School of Medicine, Sapporo Medical University
| | | | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University
| | - Akiko Tamakoshi
- Department of Public Health, Hokkaido University Graduate School of Medicine
| | - Reiko Kishi
- Hokkaido University Center for Environmental and Health Sciences
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13
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Aoyama-Kikawa S, Fujita H, Hanley SJB, Kasamo M, Kikuchi K, Torigoe T, Matsuno Y, Tamakoshi A, Sasaki T, Matsuura M, Kato Y, Dong P, Watari H, Saito T, Sengoku K, Sakuragi N. Comparison of human papillomavirus genotyping and cytology triage, COMPACT Study: Design, methods and baseline results in 14 642 women. Cancer Sci 2018; 109:2003-2012. [PMID: 29660849 PMCID: PMC5989866 DOI: 10.1111/cas.13608] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 04/06/2018] [Indexed: 01/12/2023] Open
Abstract
Although cytology‐based screening programs have significantly reduced mortality and morbidity from cervical cancer, the global consensus is that primary human papillomavirus (HPV) testing for cervical screening increases detection of high‐grade cervical intraepithelial neoplasia (CIN) and invasive cancer. However, the optimal triage strategy for HPV‐positive women to avoid over‐referral to colposcopy may be setting specific. As Japan requires data that have been generated domestically to modify screening guidelines, we conducted a 3‐year prospective study, COMparison of HPV genotyping And Cytology Triage (COMPACT), to evaluate the potential role of HPV16/18 partial genotyping and cytology for primary HPV screening. In total, 14 642 women aged 20 to 69 years undergoing routine screening at 3 centers in Hokkaido were enrolled. Conventional cytology and HPV testing were carried out. Women with abnormal cytology or HPV16/18 positivity underwent colposcopy. Those with 12 other high‐risk (hr) HPV types underwent repeat cytology after 6 months. Primary study endpoints were detection of high‐grade cervical disease defined as CIN2/CIN3 or greater as determined by consensus pathology. Prevalence of cytological abnormalities was 2.4%. hrHPV, HPV 16, and HPV 18 were detected in 4.6%, 0.9%, and 0.3% of women, respectively. HPV16/18 were detected in all (8/8) invasive cervical cancers and in all (2/2) adenocarcinomas in situ. Both cytological abnormalities and hrHPV positivity declined with increasing age. This is the first Japanese study to investigate the role of partial genotyping and cytology in an HPV‐based screening program. Results should help policy‐makers develop guidelines for future cervical screening programs and management of cervical abnormalities based on HPV genotype.
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Affiliation(s)
- Satomi Aoyama-Kikawa
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, Sapporo, Japan.,Women's Healthcare Center, Otaru General Hospital, Otaru, Japan
| | | | - Sharon J B Hanley
- Department of Women's Health Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | | | | | | | - Yoshihiro Matsuno
- Department of Surgical Pathology, Hokkaido University Hospital, Sapporo, Japan
| | - Akiko Tamakoshi
- Department of Public Health, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | | | - Motoki Matsuura
- Department of Obstetrics and Gynecology, Sapporo Medical University, Sapporo, Japan
| | - Yasuhito Kato
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Peixin Dong
- Department of Women's Health Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Hidemichi Watari
- Department of Obstetrics and Gynecology, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - Tsuyoshi Saito
- Department of Obstetrics and Gynecology, Sapporo Medical University, Sapporo, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Noriaki Sakuragi
- Women's Healthcare Center, Otaru General Hospital, Otaru, Japan.,Department of Women's Health Medicine, Faculty of Medicine, Hokkaido University, Sapporo, Japan.,Department of Obstetrics and Gynecology, Faculty of Medicine, Hokkaido University, Sapporo, Japan
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14
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Ueda H, Minase G, Miyamoto T, Iijima M, Saijo Y, Nakashima M, Matsumoto N, Namiki M, Sengoku K. Single-nucleotide polymorphisms in ETV5: a risk factor for Sertoli cell-only syndrome in Japanese men? CLIN EXP OBSTET GYN 2018. [DOI: 10.12891/ceog3797.2018] [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: 11/01/2022]
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15
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Miyamoto T, Abiko K, Itabashi A, Minase G, Ueda H, Sengoku K. MD-TESE-ICSI using fresh sperm resulted in a lower rate of miscarriage compared with frozen-thawed sperm. CLIN EXP OBSTET GYN 2018. [DOI: 10.12891/ceog3804.2018] [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: 11/01/2022]
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16
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Yoshimoto M, Tokuda A, Nishiwaki K, Sengoku K, Yaginuma Y. Abnormal Expression of PICT-1 and Its Codon 389 Polymorphism Is a Risk Factor for Human Endometrial Cancer. Oncology 2018; 95:43-51. [PMID: 29617699 DOI: 10.1159/000487189] [Citation(s) in RCA: 3] [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] [Received: 11/03/2017] [Accepted: 01/22/2018] [Indexed: 12/13/2022]
Abstract
OBJECTIVE The protein interacting with carboxyl terminus-1 (PICT-1) gene has been implicated as a tumor suppressor gene, and its alterations have been reported in several cancers. This study investigated the association of PICT-1 alterations with endometrial carcinogenesis. METHODS We analyzed the entire coding region of the PICT-1 gene using polymerase chain reaction-single-strand conformation polymorphism and DNA sequencing to examine PICT-1 mutations in endometrial cancer. Western blotting and immunohistochemical staining were performed to analyze the protein expression and cellular localization of PICT-1 in endometrial cancer cell lines and patient samples. RESULTS The codon 389 polymorphism of PICT-1 increased the risk of endometrial cancer. Interestingly, 2 of 13 endometrial cancers somatically acquired this mutation compared to normal counterparts. Immunohistochemical staining revealed lower levels of PICT-1 in samples from atypical endometrial hyperplasia and endometrial cancer tissues compared to normal endometrial tissues (p < 0.01). This decrease in PICT-1 expression was significantly correlated with histological grade and lymph node metastasis (p < 0.05). CONCLUSIONS The findings of this study suggest that disruption of PICT-1 protein expression and codon 389 polymorphism can contribute to the pathogenesis or neoplastic progression of endometrial cancer.
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Affiliation(s)
- Masafumi Yoshimoto
- Department of Oncology, Graduate School of Health Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Aoi Tokuda
- Department of Oncology, Graduate School of Health Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Kunihiko Nishiwaki
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Yuji Yaginuma
- Department of Oncology, Graduate School of Health Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
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Braimoh TS, Kobayashi S, Sata F, Sasaki S, Goudarzi H, Yila TA, Araki A, Miyashita C, Minakami H, Baba T, Sengoku K, Kishi R. Association of prenatal passive smoking and metabolic gene polymorphisms with child growth from birth to 3years of age in the Hokkaido Birth Cohort Study on Environment and Children's Health. Sci Total Environ 2017; 605-606:995-1002. [PMID: 28693112 DOI: 10.1016/j.scitotenv.2017.06.212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 06/23/2017] [Accepted: 06/25/2017] [Indexed: 06/07/2023]
Abstract
Although the effects of prenatal passive smoking on birth weight have been reported, the effects of metabolic gene polymorphisms on passive smoking have not been studied. Therefore, we investigated the effects of maternal passive smoking and metabolic gene polymorphisms on child growth up to 3years of age using cotinine as a biomarker. We included 1356 Japanese participants in a prospective cohort between 2003 and 2007 (cotinine levels at the third trimester≤0.21ng/mL and 0.22 to 11.48ng/mL for non-passive and passive smokers, respectively), and measured child outcomes such as weight, length, head circumference, and Kaup index. Additionally, we analyzed cytochrome P450 1A1 (CYP1A1), epoxide hydrolase 1 (EPHX1), and two N-acetyltransferase 2 (NAT2) genotypes using real-time polymerase chain reaction methods. Associations were investigated using multiple regression models. Kaup index gain from birth up to 3years of age was significantly smaller in children born to passive smokers than in those born to non-passive smokers (-0.34kg/m2; 95% confidence interval: -0.67, -0.01). Maternal CYP1A1 genotype was not associated with prenatal passive smoking and Kaup index gain, but was significantly associated with prenatal passive smoking and head circumference gain from birth up to 3years of age (-0.75cm; 95% confidence interval: -1.39, -0.12). Thus, this study suggests that prenatal passive smoking may have potent effects on postnatal growth from birth up to 3years of age. Moreover, children with maternal CYP1A1 genotype may be more susceptible to the effects of prenatal passive smoking.
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Affiliation(s)
- Titilola Serifat Braimoh
- Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo 060-0838, Japan; Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan
| | - Sumitaka Kobayashi
- Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo 060-0838, Japan; Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan
| | - Fumihiro Sata
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan; Health Center, Chuo University, 42-8, Ichigaya-Hommura-cho, Shinjuku-ku, Tokyo 162-8473, Japan
| | - Seiko Sasaki
- Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo 060-0838, Japan
| | - Houman Goudarzi
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan; Department of Respiratory Medicine, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo 060-0838, Japan
| | - Thamar Ayo Yila
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan
| | - Atsuko Araki
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan
| | - Hisanori Minakami
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine, North-15, West-7, Kita-ku, Sapporo 060-0838, Japan
| | - Tsuyoshi Baba
- Department of Obstetrics and Gynecology, School of Medicine, Sapporo Medical University, South-1, West-17, Chuo-ku, Sapporo 060-8556, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, School of Medicine, Asahikawa Medical University, Midorigaoka-Higashi 2-1-1-1, Asahikawa 078-8510, Japan
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, North-12, West-7, Kita-ku, Sapporo 060-0812, Japan.
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Sanai H, Miyamoto T, Minase G, Sanai Y, Ueda H, Sengoku K. A case of a pregnant patient with antiphospholipid antibody syndrome, deep vein thrombosis, and heparin-induced thrombocytopenia who suffered an intrauterine fetal death. CLIN EXP OBSTET GYN 2017. [DOI: 10.12891/ceog3565.2017] [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: 11/01/2022]
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19
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Hanaoka T, Tamura N, Ito K, Sasaki S, Araki A, Ikeno T, Miyashita C, Ito S, Minakami H, Cho K, Endo T, Baba T, Miyamoto T, Sengoku K, Kishi R. Prevalence and Risk of Birth Defects Observed in a Prospective Cohort Study: The Hokkaido Study on Environment and Children's Health. J Epidemiol 2017; 28:125-132. [PMID: 29093352 PMCID: PMC5821689 DOI: 10.2188/jea.je20160108] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Prevalence rates of all anomalies classified as birth defects, including those identified before the 22nd gestational week, are limited in published reports, including those from the International Clearinghouse for Birth Defects Surveillance and Research (ICBDSR). In our birth cohort study, we collected the data for all birth defects after 12 weeks of gestation. METHODS Subjects in this study comprised 19,244 pregnant women who visited one of 37 associated hospitals in the Hokkaido Prefecture from 2003 through 2012, and completed follow-up. All birth defects after 12 weeks of gestation, including 55 marker anomalies associated with environmental chemical exposures, were recorded. We examined parental risk factors for birth defects and the association between birth defects and risk of growth retardation. RESULTS Prevalence of all birth defects was 18.9/1,000 births. The proportion of patients with birth defects delivered between 12 and 21 weeks of gestation was approximately one-tenth of all patients with birth defects. Among those with congenital malformation of the nerve system, 39% were delivered before 22 weeks of gestation. All patients with anencephaly and encephalocele were delivered before 22 weeks of gestation. We observed different patterns of parental risk factors between birth defect cases included in ISBDSR and cases not included. Cases included in ISBDSR were associated with an increased risk of preterm birth. Cases not included in ISBDSR were associated with an increased risk of being small for gestational age at term. CONCLUSIONS Data from our study complemented the data from ICBDSR. We recommend that birth defects not included in ICBDSR also be analyzed to elucidate the etiology of birth defects.
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Affiliation(s)
- Tomoyuki Hanaoka
- Hokkaido University Center for Environmental and Health Sciences
| | - Naomi Tamura
- Hokkaido University Center for Environmental and Health Sciences.,Graduate School of Health Sciences, Hokkaido University
| | - Kumiko Ito
- Hokkaido University Center for Environmental and Health Sciences.,Graduate School of Medicine, Hokkaido University
| | - Seiko Sasaki
- Hokkaido University Center for Environmental and Health Sciences.,Graduate School of Medicine, Hokkaido University
| | - Atsuko Araki
- Hokkaido University Center for Environmental and Health Sciences
| | - Tamiko Ikeno
- Hokkaido University Center for Environmental and Health Sciences
| | | | - Sachiko Ito
- Hokkaido University Center for Environmental and Health Sciences
| | - Hisanori Minakami
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine
| | - Kazutoshi Cho
- Department of Obstetrics and Gynecology, Hokkaido University Graduate School of Medicine
| | - Toshiaki Endo
- Department of Obstetrics and Gynecology, School of Medicine, Sapporo Medical University
| | - Tsuyoshi Baba
- Department of Obstetrics and Gynecology, School of Medicine, Sapporo Medical University
| | | | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University
| | - Reiko Kishi
- Hokkaido University Center for Environmental and Health Sciences
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Miyamoto T, Iijima M, Shin T, Minase G, Ueda H, Okada H, Sengoku K. CUL4B mutations are uncommon in Japanese patients with Sertoli-cell-only syndrome and azoospermia. J OBSTET GYNAECOL 2017; 38:293-294. [PMID: 28816568 DOI: 10.1080/01443615.2017.1336755] [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] [Indexed: 10/19/2022]
Affiliation(s)
- T Miyamoto
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - M Iijima
- b Department of Urology , Kanazawa University Graduate School of Medical Science , Kanazawa , Japan
| | - T Shin
- c Department of Urology , Dokkyo Medical University Koshigaya Hospital , Koshigaya , Japan
| | - G Minase
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - H Ueda
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - H Okada
- c Department of Urology , Dokkyo Medical University Koshigaya Hospital , Koshigaya , Japan
| | - K Sengoku
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
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21
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Minase G, Miyatake S, Nabatame S, Arai H, Koshimizu E, Mizuguchi T, Nakashima M, Miyake N, Saitsu H, Miyamoto T, Sengoku K, Matsumoto N. An atypical case of SPG56/CYP2U1-related spastic paraplegia presenting with delayed myelination. J Hum Genet 2017; 62:997-1000. [PMID: 28725025 DOI: 10.1038/jhg.2017.77] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 06/12/2017] [Accepted: 06/21/2017] [Indexed: 11/09/2022]
Abstract
Hereditary spastic paraplegia (HSP) is a neurological disorder characterized by a progressive spasticity and muscle weakness of the lower limbs. It is divided into two subtypes, uncomplicated and complicated forms. Biallelic mutations in the cytochrome P450 2U1 gene (CYP2U1) are associated with spastic paraplegia type 56 (SPG56), manifesting both uncomplicated and complicated HSP. Accompanying clinical features include intellectual disability, dystonia, cerebellar ataxia, subclinical peripheral neuropathy, visual impairment, as well as abnormalities in brain magnetic resonance imaging. As a rare clinical feature, delayed myelination has previously been reported in only two patients with CYP2U1 mutations. Here, we report a patient with SPG56 with novel compound heterozygous mutations in CYP2U1 which were identified by whole exome sequencing. Our patient exhibited complex features together with delayed myelination, broadening the phenotypic spectrum of SPG56, and implying that CYP2U1 should be screened in HSP with delayed myelination.
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Affiliation(s)
- Gaku Minase
- Department of Human Genetics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan.,Department of Obstetrics and Gynecology, Asahikawa Medical University, Hokkaido, Japan
| | - Satoko Miyatake
- Department of Human Genetics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Shin Nabatame
- Department of Pediatrics, Osaka University Graduate School of Medicine, Osaka, Japan
| | - Hiroshi Arai
- Department of Pediatric Neurology, Morinomiya Hospital, Osaka, Japan
| | - Eriko Koshimizu
- Department of Human Genetics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Takeshi Mizuguchi
- Department of Human Genetics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Mitsuko Nakashima
- Department of Human Genetics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Noriko Miyake
- Department of Human Genetics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Hirotomo Saitsu
- Department of Biochemistry, Hamamatsu University School of Medicine, Sizuoka, Japan
| | - Toshinobu Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Hokkaido, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Hokkaido, Japan
| | - Naomichi Matsumoto
- Department of Human Genetics, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
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Nakanishi K, Miyamoto T, Murakami K, Ono M, Nozawa A, Sengoku K, Kitamura S. Naturally conceived heterotopic pregnancy treated with abdominal wall-lifting laparoscopic salpingectomy using spinal anaesthesia. J OBSTET GYNAECOL 2017. [PMID: 28631498 DOI: 10.1080/01443615.2017.1322047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Kentaro Nakanishi
- a Department of Obstetrics and Gynecology , Nayoro City General Hospital , Nayoro , Japan
| | - Toshinobu Miyamoto
- b Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - Koji Murakami
- a Department of Obstetrics and Gynecology , Nayoro City General Hospital , Nayoro , Japan
| | - Masatada Ono
- a Department of Obstetrics and Gynecology , Nayoro City General Hospital , Nayoro , Japan
| | - Akemi Nozawa
- a Department of Obstetrics and Gynecology , Nayoro City General Hospital , Nayoro , Japan
| | - Kazuo Sengoku
- b Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - Shinitsu Kitamura
- a Department of Obstetrics and Gynecology , Nayoro City General Hospital , Nayoro , Japan
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23
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Ueda H, Miyamoto T, Minase G, Sengoku K. Prenatal diagnosis of a body stalk anomaly by a combination of ultrasonography and foetal magnetic resonance imaging. J OBSTET GYNAECOL 2017; 37:946-947. [PMID: 28467151 DOI: 10.1080/01443615.2017.1306842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hiroto Ueda
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - Toshinobu Miyamoto
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - Gaku Minase
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - Kazuo Sengoku
- a Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
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Miyamoto T, Minase G, Shin T, Ueda H, Okada H, Sengoku K. Human male infertility and its genetic causes. Reprod Med Biol 2017; 16:81-88. [PMID: 29259455 PMCID: PMC5661822 DOI: 10.1002/rmb2.12017] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 12/16/2016] [Indexed: 01/11/2023] Open
Abstract
Background Infertility affects about 15% of couples who wish to have children and half of these cases are associated with male factors. Genetic causes of azoospermia include chromosomal abnormalities, Y chromosome microdeletions, and specific mutations/deletions of several Y chromosome genes. Many researchers have analyzed genes in the AZF region on the Y chromosome; however, in 2003 the SYCP3 gene on chromosome 12 (12q23) was identified as causing azoospermia by meiotic arrest through a point mutation. Methods We mainly describe the SYCP3 and PLK4 genes that we have studied in our laboratory, and add comments on other genes associated with human male infertility. Results Up to now, The 17 genes causing male infertility by their mutation have been reported in human. Conclusions Infertility caused by nonobstructive azoospermia (NOA) is very important in the field of assisted reproductive technology. Even with the aid of chromosomal analysis, ultrasonography of the testis, and detailed endocrinology, only MD‐TESE can confirm the presence of immature spermatozoa in the testes. We strongly hope that these studies help clinics avoid ineffective MD‐TESE procedures.
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Affiliation(s)
- Toshinobu Miyamoto
- Department of Obstetrics and Gynecology Asahikawa Medical University Asahikawa Japan
| | - Gaku Minase
- Department of Obstetrics and Gynecology Asahikawa Medical University Asahikawa Japan
| | - Takeshi Shin
- Department of Urology Dokkyo Medical University Koshigaya Hospital Koshigaya City Japan
| | - Hiroto Ueda
- Department of Obstetrics and Gynecology Asahikawa Medical University Asahikawa Japan
| | - Hiroshi Okada
- Department of Urology Dokkyo Medical University Koshigaya Hospital Koshigaya City Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology Asahikawa Medical University Asahikawa Japan
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25
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Minase G, Miyamoto T, Miyagawa Y, Iijima M, Ueda H, Saijo Y, Namiki M, Sengoku K. Single-nucleotide polymorphisms in the human RAD21L gene may be a genetic risk factor for Japanese patients with azoospermia caused by meiotic arrest and Sertoli cell-only syndrome. HUM FERTIL 2017. [PMID: 28635411 DOI: 10.1080/14647273.2017.1292004] [Citation(s) in RCA: 4] [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] [Indexed: 01/20/2023]
Abstract
Genetic mechanisms are implicated in some cases of male infertility. Recently, it was demonstrated that male mice lacking the gene for RAD21L exhibited azoospermia caused by meiotic arrest. Mouse RAD21L is a functionally relevant meiotic α-kleisin that is essential for male fertility. Therefore, we hypothesized that RAD21L mutations or polymorphisms may be associated with male infertility, especially azoospermia secondary to meiotic arrest. To determine if RAD21L defects are associated with azoospermia in groups of patients with meiotic arrest, we performed direct sequencing of the RAD21L coding regions in 38 Japanese patients with meiotic arrest and in 200 normal controls. Three coding single-nucleotide polymorphisms (SNP1-SNP3) were detected in the meiotic arrest patient group. Sertoli cell-only syndrome is considered a common cause of non-obstructive azoospermia. For comparison, the RAD21L coding regions in which SNP1-SNP3 were detected were sequenced in 140 patients with Sertoli cell-only syndrome. Statistical analyses were used to compare the two groups of patients with the control group. Genotype and allele frequencies of SNP2 and SNP3 were notably higher in the two patient groups compared with the control group (Bonferroni adjusted p value <0.016). These results suggest a critical role for RAD21L in human spermatogenesis.
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Affiliation(s)
- Gaku Minase
- a Department of Obstetrics and Gynecology , School of Medicine, Asahikawa Medical University , Asahikawa , Japan
| | - Toshinobu Miyamoto
- a Department of Obstetrics and Gynecology , School of Medicine, Asahikawa Medical University , Asahikawa , Japan
| | - Yasushi Miyagawa
- b Department of Urology , Osaka University Graduate School of Medicine , Suita , Japan
| | - Masashi Iijima
- c Department of Integrated Cancer Therapy and Urology , Kanazawa University Graduate School of Medical Science , Kanazawa , Japan
| | - Hiroto Ueda
- a Department of Obstetrics and Gynecology , School of Medicine, Asahikawa Medical University , Asahikawa , Japan
| | - Yasuaki Saijo
- d Division of Community Medicine and Epidemiology, Department of Health Science , School of Medicine, Asahikawa Medical University , Asahikawa , Japan
| | - Mikio Namiki
- c Department of Integrated Cancer Therapy and Urology , Kanazawa University Graduate School of Medical Science , Kanazawa , Japan
| | - Kazuo Sengoku
- a Department of Obstetrics and Gynecology , School of Medicine, Asahikawa Medical University , Asahikawa , Japan
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26
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Yoshimoto M, Tokuda A, Nishiwaki K, Sengoku K, Yaginuma Y. The protein interacting with carboxyl terminus-1 codon 389 polymorphism impairs protein interacting with carboxyl terminus-1 function and is a risk factor for uterine cervical cancer. Mol Carcinog 2016; 56:1484-1492. [PMID: 27996172 DOI: 10.1002/mc.22608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 08/04/2016] [Accepted: 12/15/2016] [Indexed: 11/11/2022]
Abstract
PICT-1 is a nucleolar protein with various tumor suppressor functions. Recently, PICT-1 expression was reported to be dramatically reduced in several cancers. To investigate the role of PICT-1 in uterine cervical carcinogenesis, we examined its gene mutations, protein expression, cellular localization, and effect on p53 stabilization. PCR-SSCP analysis of the entire coding region of PICT-1 showed that a polymorphism at codon 389 may increase the risk of uterine cervical cancers, and also identified a novel missense mutation. Expression of wild-type PICT-1 inhibited the degradation of p53 in the presence or absence of HPV 18 E6 viral protein in vitro, while the expression of codon 389 polymorphic PICT-1 had a diminished inhibitory effect on p53 degradation. Moreover, we observed that PICT-1 degradation was induced both independently and cooperatively by E6 and E7 proteins from high-risk HPVs, but only marginal degradation was observed with proteins from low-risk HPV. Immunohistochemical staining of tumor samples revealed that lower levels of PICT-1 were observed in samples from CIN III and cervical cancer tissues, compared to normal cervical epithelium and CIN I, II tissues (P < 0.05). The reduction of PICT-1 may therefore be an early event in uterine cervical tumorigenesis. Our results indicated that PICT-1 counteracts HPV-induced p53 degradation and that aberrant PICT-1 function may contribute towards inactivating p53. Therefore, PICT-1 may play a critical role during the pathogenesis of uterine cervical cancers.
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Affiliation(s)
- Masafumi Yoshimoto
- Faculty of Life Sciences, Department of Oncology, Graduate School of Health Sciences, Kumamoto University, Kumamoto, Japan
| | - Aoi Tokuda
- Faculty of Life Sciences, Department of Oncology, Graduate School of Health Sciences, Kumamoto University, Kumamoto, Japan
| | - Kunihiko Nishiwaki
- Department of Obstetrics & Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Kazuo Sengoku
- Department of Obstetrics & Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Yuji Yaginuma
- Faculty of Life Sciences, Department of Oncology, Graduate School of Health Sciences, Kumamoto University, Kumamoto, Japan
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Morikawa M, Kawabata K, Kato-Hirayama E, Oda Y, Ueda H, Kataoka S, Yamada T, Okuyama K, Sengoku K, Minakami H. Liver dysfunction in women with pregnancy-induced antithrombin deficiency. J Obstet Gynaecol Res 2016; 43:257-264. [DOI: 10.1111/jog.13210] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 09/06/2016] [Accepted: 09/23/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Mamoru Morikawa
- Department of Obstetrics; Hokkaido University Graduate School of Medicine; Sapporo Japan
| | - Kosuke Kawabata
- Department of Obstetrics and Gynecology; Hakodate Central General Hospital; Hakodate Japan
| | - Emi Kato-Hirayama
- Department of Obstetrics and Gynecology; Sapporo City General Hospital; Sapporo Japan
| | - Yasunari Oda
- Department of Obstetrics and Gynecology; Japan Community Health Care Organization Hokkaido Hospital; Sapporo Japan
| | - Hiroto Ueda
- Department of Obstetrics and Gynecology; Asahikawa Medical University; Asahikawa Japan
| | - Soromon Kataoka
- Department of Obstetrics and Gynecology; Hakodate Central General Hospital; Hakodate Japan
| | - Takashi Yamada
- Department of Obstetrics and Gynecology; Japan Community Health Care Organization Hokkaido Hospital; Sapporo Japan
| | - Kazuhiko Okuyama
- Department of Obstetrics and Gynecology; Sapporo City General Hospital; Sapporo Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology; Asahikawa Medical University; Asahikawa Japan
| | - Hisanori Minakami
- Department of Obstetrics; Hokkaido University Graduate School of Medicine; Sapporo Japan
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Nakanishi K, Yamashita A, Miyamoto T, Takeguch R, Furuya A, Matsuo K, Tanahashi Y, Kawamura M, Sengoku K. P450 oxidoreductase deficiency with maternal virilization during pregnancy. CLIN EXP OBSTET GYN 2016. [DOI: 10.12891/ceog3172.2016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Okamoto S, Nakanishi K, Ono M, Nozawa A, Kitamura S, Miyamoto T, Sengoku K. Rectal perforation after incision of the vaginal canal following incorrect insertion of a Vagi-Pipe into the rectum during total laparoscopic hysterectomy. J OBSTET GYNAECOL 2016; 36:992-993. [PMID: 27623694 DOI: 10.1080/01443615.2016.1210590] [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] [Indexed: 10/21/2022]
Affiliation(s)
- Shuhei Okamoto
- a Department of Obstetrics and Gynecology , Nayoro City General Hospital , Nayoro , Japan
| | - Kentaro Nakanishi
- a Department of Obstetrics and Gynecology , Nayoro City General Hospital , Nayoro , Japan
| | - Masatada Ono
- a Department of Obstetrics and Gynecology , Nayoro City General Hospital , Nayoro , Japan
| | - Akemi Nozawa
- a Department of Obstetrics and Gynecology , Nayoro City General Hospital , Nayoro , Japan
| | - Shinitsu Kitamura
- a Department of Obstetrics and Gynecology , Nayoro City General Hospital , Nayoro , Japan
| | - Toshinobu Miyamoto
- b Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
| | - Kazuo Sengoku
- b Department of Obstetrics and Gynecology , Asahikawa Medical University , Asahikawa , Japan
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Kawanishi Y, Saijo Y, Yoshioka E, Nakagi Y, Yoshida T, Miyamoto T, Sengoku K, Ito Y, Miyashita C, Araki A, Kishi R. The Association between Prenatal Yoga and the Administration of Ritodrine Hydrochloride during Pregnancy: An Adjunct Study of the Japan Environment and Children's Study. PLoS One 2016; 11:e0158155. [PMID: 27348869 PMCID: PMC4922558 DOI: 10.1371/journal.pone.0158155] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 06/10/2016] [Indexed: 11/22/2022] Open
Abstract
Introduction While the beneficial effects of prenatal yoga have been reported in recent years, little is known about its effectiveness in pregnant Japanese women. Despite several adverse effects, ritodrine hydrochloride is frequently prescribed to suppress preterm labor in Japan, and its usage may therefore indicate cases of preterm labor. This study aimed to clarify the association between prenatal yoga and ritodrine hydrochloride use during pregnancy. Methods An observational study was conducted as an adjunct study by the Hokkaido unit of the Japan Environment and Children’s Study. Information on prenatal yoga practice was collected using a self-questionnaire between March 21, 2012, and July 7, 2015, targeting women who had recently delivered. Ritodrine hydrochloride use was identified from medical records. A total of 2,692 women were analyzed using logistic regression models that adjusted for possible confounders. Results There were 567 (21.1%) women who practiced prenatal yoga, which was associated with a lower risk of ritodrine hydrochloride use (adjusted odds ratio [OR] 0.77; 95% CI 0.61–0.98). This was especially evident in women with a total practice duration that exceeded 900 minutes throughout their pregnancy (adjusted OR 0.54; 95% CI 0.38–0.76). A sensitivity analysis that excluded patients with threatened abortion during the study period produced similar results. Conclusions Prenatal yoga was associated with a lower risk of ritodrine hydrochloride use, particularly in women with more than 900 minutes of practice time over the course of their pregnancy. Prenatal yoga may be a beneficial option for pregnant women in the selection of alternative therapies.
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Affiliation(s)
- Yasuyuki Kawanishi
- Department of Health Science, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
- * E-mail:
| | - Yasuaki Saijo
- Department of Health Science, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Eiji Yoshioka
- Department of Health Science, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Yoshihiko Nakagi
- Department of Health Science, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Takahiko Yoshida
- Department of Health Science, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Toshinobu Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Yoshiya Ito
- Faculty of Nursing, Japanese Red Cross Hokkaido College of Nursing, Kitami, Hokkaido, Japan
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Atsuko Araki
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, Sapporo, Hokkaido, Japan
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Nakanishi K, Yamashita A, Miyamoto T, Takeguchi R, Furuya A, Matsuo K, Tanahashi Y, Kawamura M, Sengoku K. P450 oxidoreductase deficiency with maternal virilization during pregnancy. CLIN EXP OBSTET GYN 2016; 43:902-904. [PMID: 29944250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
PURPOSE The authors report on a rare case of maternal virilization during pregnancy caused by autosomal recessive P450 oxidore- ductase (POR) deficiency. MATERIALS AND METHODS A 24-year-old primigravida developed a deepening voice and hirsutism in the second trimester. Prenatal ultrasonography failed to detect any fetal abnormality and fetal growth was normal. POR deficiency was suspected, but the mother declined fetal genetic testing. A female neonate was delivered by cesarean section at 41 weeks' gestation. RESULTS The neonate had skeletal abnormalities. Mutational analysis of the POR gene demonstrated homozygosity for c.1370 G>A and p.R457H in the patient and heterozygosity in her parents. POR deficiency was confirmed in the neonate. CONCLUSION POR deficiency should be suspected in cases of maternal virilization. Maternal urinary estriol, fetal magnetic resonance imaging, and parental genetic testing should be performed. Parental consent for fetal genetic testing should be sought to ensure prompt diagnosis and early treatment.
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Miyamoto T, Bando Y, Koh E, Tsujimura A, Miyagawa Y, Iijima M, Namiki M, Shiina M, Ogata K, Matsumoto N, Sengoku K. A PLK4 mutation causing azoospermia in a man with Sertoli cell-only syndrome. Andrology 2015; 4:75-81. [PMID: 26452337 DOI: 10.1111/andr.12113] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 08/27/2015] [Accepted: 08/27/2015] [Indexed: 01/31/2023]
Abstract
About 15% of couples wishing to have children are infertile; approximately half these cases involve a male factor. Polo-like kinase 4 (PLK-4) is a member of the polo protein family and a key regulator of centriole duplication. Male mice with a point mutation in the Plk4 gene show azoospermia associated with germ cell loss. Mutational analysis of 81 patients with azoospermia and Sertoli cell-only syndrome (SCOS) identified one man with a heterozygous 13-bp deletion in the Ser/Thr kinase domain of PLK4. Division of centrioles occurred in wild-type PLK4-transfected cells, but was hampered in PLK-4-mutant transfectants, which also showed abnormal nuclei. Thus, this PLK4 mutation might be a cause of human SCOS and nonobstructive azoospermia.
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Affiliation(s)
- T Miyamoto
- Departments of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Y Bando
- Functional Anatomy and Neuroscience, Asahikawa Medical University, Asahikawa, Japan
| | - E Koh
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - A Tsujimura
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Y Miyagawa
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - M Iijima
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - M Namiki
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - M Shiina
- Department of Biochemistry, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - K Ogata
- Department of Biochemistry, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - N Matsumoto
- Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - K Sengoku
- Departments of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
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Miyamoto T, Minase G, Okabe K, Ueda H, Sengoku K. Male infertility and its genetic causes. J Obstet Gynaecol Res 2015; 41:1501-5. [PMID: 26178295 DOI: 10.1111/jog.12765] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [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: 03/06/2015] [Revised: 04/16/2015] [Accepted: 04/23/2015] [Indexed: 11/27/2022]
Abstract
AIM Infertility is a serious social problem in advanced nations, with male factor infertility accounting for approximately half of all cases of infertility. Here, we aim to discuss our laboratory results in the context of recent literature on critical genes residing on the Y chromosome or autosomes that play important roles in human spermatogenesis. METHODS The PubMed database was systematically searched using the following keywords: 'genetics of male factor infertility'; 'male infertility genes', 'genetics of spermatogenesis' to retrieve information for this review. RESULTS Striking progress has recently been made in the elucidation of mechanisms of spermatogenesis using knockout mouse models. This information has, in many cases, not been directly translatable to humans. Nevertheless, mutations in several critical genes have been shown to cause male infertility. We discuss here the contribution to male factor infertility of a number of genes identified in the azoospermia factor (AZF) region on the Y chromosome, as well as the autosomally located genes: SYKP3, KLHL10, AURKC and SPATA16. CONCLUSIONS Non-obstructive azoospermia is the most severe form of azoospermia. However, the presence of spermatozoa can only be confirmed through procedures, which may prove to be unnecessary. Elucidation of the genes underlying male factor infertility, and thereby a better understanding of the mechanisms that cause it, will result in more tailored, evidence-based decisions in treatment of patients.
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Affiliation(s)
- Toshinobu Miyamoto
- Department of Obstetrics Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Gaku Minase
- Department of Obstetrics Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Kimika Okabe
- Department of Obstetrics Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Hiroto Ueda
- Department of Obstetrics Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
| | - Kazuo Sengoku
- Department of Obstetrics Gynecology, Asahikawa Medical University, Asahikawa, Hokkaido, Japan
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Miyamoto T, Koh E, Tsujimura A, Miyagawa Y, Minase G, Ueda Y, Namiki M, Sengoku K. SIN3A mutations are rare in men with azoospermia. Andrologia 2014; 47:1083-5. [PMID: 25395209 DOI: 10.1111/and.12379] [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] [Accepted: 10/07/2014] [Indexed: 11/28/2022] Open
Abstract
A loss of function of the murine Sin3A gene resulted in male infertility with Sertoli cell-only syndrome (SCOS) phenotype in mice. Here, we investigated the relevance of this gene to human male infertility with azoospermia caused by SCOS. Mutation analysis of SIN3A in the coding region was performed on 80 Japanese patients. However, no variants could be detected. This study suggests a lack of association of SIN3A gene sequence variants with azoospermia caused by SCOS in humans.
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Affiliation(s)
- T Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - E Koh
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - A Tsujimura
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Y Miyagawa
- Department of Urology, Osaka University Graduate School of Medicine, Suita, Japan
| | - G Minase
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - Y Ueda
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
| | - M Namiki
- Department of Urology, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan
| | - K Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan
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Nakajima E, Ishigouoka T, Yoshida T, Sato T, Miyamoto T, Shirai M, Sengoku K. Prenatal diagnosis of congenital imperforate hymen with hydrocolpos. J OBSTET GYNAECOL 2014; 35:311-3. [PMID: 25162142 DOI: 10.3109/01443615.2014.951608] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- E Nakajima
- Department of Obstetrics and Gynecology, Asahikawa Medical University , Asahikawa , Japan
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Sasaki Y, Ikeda T, Nishimura K, Katsuragi S, Sengoku K, Kusuda S, Fujimura M. Association of antenatal corticosteroids and the mode of delivery with the mortality and morbidity of infants weighing less than 1,500g at birth in Japan. Neonatology 2014; 106:81-6. [PMID: 24819396 DOI: 10.1159/000358189] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 12/23/2013] [Indexed: 11/19/2022]
Abstract
OBJECTIVE This study aimed to re-evaluate the effectiveness of antenatal corticosteroids (ACS) and to analyze the association between ACS and the mode of delivery in the context of perinatal morbidity and mortality in very-low-birth-weight (VLBW) infants. STUDY DESIGN This retrospective cohort study involved 15,765 VLBW infants born between 2003 and 2008 at less than 34 weeks of gestation and weighing less than 1,500 g at birth. Data were obtained from the Japanese neonatal research network database. Univariate and multivariate logistic regression analyses were performed to evaluate the impact of ACS and mode of delivery on the risk of infant mortality and morbidity. RESULTS Administration of ACS was associated with decreases in mortality rate, intraventricular hemorrhage (IVH) and retinopathy of prematurity (ROP), and was not associated with the incidence of respiratory distress syndrome (RDS), periventricular leukomalacia or necrotizing enterocolitis (NEC). When the administration of ACS was analyzed in the context of different modes of delivery, the incidence of IVH and ROP tended to decrease with cesarean section deliveries, whereas the incidence of RDS tended to decrease and the incidence of NEC tended to increase for infants delivered vaginally. The incidence of chronic lung disease tended to increase in association with both delivery methods. CONCLUSIONS This large cohort study reconfirms that ACS treatment is associated with decreases in infant mortality and severe morbidity. Furthermore, the delivery method may be associated with severe morbidity in VLBW infants exposed to ACS.
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Miyamoto T, Koh E, Tsujimura A, Miyagawa Y, Saijo Y, Namiki M, Sengoku K. Single-nucleotide polymorphisms in theLRWD1gene may be a genetic risk factor for Japanese patients with Sertoli cell-only syndrome. Andrologia 2013; 46:273-6. [DOI: 10.1111/and.12077] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/23/2012] [Indexed: 11/26/2022] Open
Affiliation(s)
- T. Miyamoto
- Department of Obstetrics and Gynecology; School of Medicine; Asahikawa Medical University; Asahikawa Japan
| | - E. Koh
- Department of Integrated Cancer Therapy and Urology; Kanazawa University Graduate School of Medical Science; Kanazawa Japan
| | - A. Tsujimura
- Department of Urology; Osaka University Graduate School of Medicine; Suita Japan
| | - Y. Miyagawa
- Department of Urology; Osaka University Graduate School of Medicine; Suita Japan
| | - Y. Saijo
- Division of Community Medicine and Epidemiology; Department of Health Science; Asahikawa Medical University; Asahikawa Japan
| | - M. Namiki
- Department of Integrated Cancer Therapy and Urology; Kanazawa University Graduate School of Medical Science; Kanazawa Japan
| | - K. Sengoku
- Department of Obstetrics and Gynecology; School of Medicine; Asahikawa Medical University; Asahikawa Japan
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Sengoku K, Miyamoto T, Horikawa M, Katayama H, Nishiwaki K, Kato Y, Kawanishi Y, Saijo Y. Clinicopathologic risk factors for recurrence of ovarian endometrioma following laparoscopic cystectomy. Acta Obstet Gynecol Scand 2013. [DOI: 10.1111/aogs.12051] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Kazuo Sengoku
- Department of Obstetrics and Gynecology; Asahikawa Medical University; Asahikawa; Hokkaido; Japan
| | - Toshinobu Miyamoto
- Department of Obstetrics and Gynecology; Asahikawa Medical University; Asahikawa; Hokkaido; Japan
| | - Michiharu Horikawa
- Department of Obstetrics and Gynecology; Asahikawa Medical University; Asahikawa; Hokkaido; Japan
| | - Hideto Katayama
- Department of Obstetrics and Gynecology; Asahikawa Medical University; Asahikawa; Hokkaido; Japan
| | - Kunihiko Nishiwaki
- Department of Obstetrics and Gynecology; Asahikawa Medical University; Asahikawa; Hokkaido; Japan
| | - Yasuhito Kato
- Department of Obstetrics and Gynecology; Asahikawa Medical University; Asahikawa; Hokkaido; Japan
| | - Yasuyuki Kawanishi
- Department of Health Science; Asahikawa Medical University; Asahikawa; Hokkaido; Japan
| | - Yasuaki Saijo
- Department of Health Science; Asahikawa Medical University; Asahikawa; Hokkaido; Japan
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Miyamoto T, Akiba S, Sato N, Fujimura T, Takagi Y, Kitahara T, Takema Y, Iizuka H, Sengoku K. Study of the vulvar skin in healthy Japanese women: components of the stratum corneum and microbes. Int J Dermatol 2012; 52:1500-5. [PMID: 23228142 DOI: 10.1111/j.1365-4632.2012.05582.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Although the physiological conditions of vulvar skin in Caucasian populations have been characterized, little is known about these conditions in Japanese women. METHODS Skin of the labia, groin, mons pubis, and inner thigh was examined in 40 healthy Japanese women outwith their menstrual period. Skin moisture, skin pH, ceramide content and inflammatory cytokine proteins of the stratum corneum, and bacterial flora were assessed. RESULTS Skin moisture was found to be significantly lower in the labia than at the other three sites examined. No differences were found in skin pH. A significant difference in ceramide content was observed between the groin and inner thigh. The ratio of interleukin-1α (IL-1α) and interleukin-1α receptor antagonist (IL-1Ra) was significantly higher in the labia than in the other sites. Numbers of total bacteria, Staphylococcus epidermis, and Lactobacillus spp. were greater in the labia and mons pubis sites compared with the inner thigh. Prevotella spp. were found only in the labia. CONCLUSIONS In Japanese women, the skin at the labia is drier and more inflammatory than the skin at the groin, mons pubis, and inner thigh; this cannot be explained by the ceramide content and/or pH of the stratum corneum. Prevotella spp. may perform a key role in the vulvar skin of Japanese women.
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Affiliation(s)
- Toshinobu Miyamoto
- Departments of Obstetrics and Gynecology, Asahikawa Medical College, Asahikawa, Hokkaido, Japan,Biological Science Laboratories, Kao Corporation, Haga, Tochigi, Japan, andDepartment of Dermatology, Asahikawa Medical College, Asahikawa, Hokkaido, Japan
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Yila TA, Sasaki S, Miyashita C, Braimoh TS, Kashino I, Kobayashi S, Okada E, Baba T, Yoshioka E, Minakami H, Endo T, Sengoku K, Kishi R. Effects of maternal 5,10-methylenetetrahydrofolate reductase C677T and A1298C Polymorphisms and tobacco smoking on infant birth weight in a Japanese population. J Epidemiol 2012; 22:91-102. [PMID: 22277790 PMCID: PMC3798587 DOI: 10.2188/jea.je20110039] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background Intracellular folate hemostasis depends on the 5,10-methylenetetrahydrofolate reductase (MTHFR) gene. Because 5,10-MTHFR 677TT homozygosity and tobacco smoking are associated with low folate status, we tested the hypothesis that smoking in mothers with 5,10-MTHFR C677T or A1298C polymorphisms would be independently associated with lower birth weight among their offspring. Methods We assessed 1784 native Japanese mother-child pairs drawn from the ongoing birth cohort of The Hokkaido Study on Environment and Children’s Health. Data (demographic information, hospital birth records, and biological specimens) were extracted from recruitments that took place during the period from February 2003 to March 2006. Maternal serum folate were assayed by chemiluminescent immunoassay, and genotyping of 5,10-MTHFR C677T/A1298C polymorphisms was done using a TaqMan allelic discrimination assay. Results The prevalence of folate deficiency (<6.8 nmol/L) was 0.3%. The 5,10-MTHFR 677CT genotype was independently associated with an increase of 36.40 g (95% CI: 2.60 to 70.30, P = 0.035) in mean infant birth weight and an increase of 90.70 g (95% CI: 6.00 to 175.50, P = 0.036) among male infants of nonsmokers. Female infants of 677TT homozygous passive smokers were 99.00 g (95% CI: −190.26 to −7.56, P = 0.034) lighter. The birth weight of the offspring of smokers with 5,10-MTHFR 1298AA homozygosity was lower by 107.00 g (95% CI: −180.00 to −33.90, P = 0.004). Conclusions The results suggest that, in this population, maternal 5,10-MTHFR C677T polymorphism, but not the 5,10-MTHFR A1298C variant, is independently associated with improvement in infant birth weight, especially among nonsmokers. However, 5,10-MTHFR 1298AA might be associated with folate impairment and could interact with tobacco smoke to further decrease birth weight.
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Affiliation(s)
- Thamar Ayo Yila
- Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, Sapporo, Japan
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Miyamoto T, Tsujimura A, Miyagawa Y, Koh E, Namiki M, Horikawa M, Saijo Y, Sengoku K. Single nucleotide polymorphisms in the SEPTIN12 gene may be associated with azoospermia by meiotic arrest in Japanese men. J Assist Reprod Genet 2012; 29:47-51. [PMID: 22116646 PMCID: PMC3252415 DOI: 10.1007/s10815-011-9679-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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: 06/02/2011] [Accepted: 11/09/2011] [Indexed: 10/15/2022] Open
Abstract
PURPOSE To investigate the association between SEPTIN12 gene variants and the risk of azoospermia caused by meiotic arrest. METHODS Mutational analysis of the SEPTIN12 gene was performed using DNA from 30 Japanese patients with azoospermia by meiotic arrest and 140 fertile male controls. RESULTS The frequencies of the c.204G>C (Gln38His) allele and the CC genotype were significantly higher in patients than in fertile controls (p < 0.05). CONCLUSION The c.204G>C (Gln38His) variant in the SEPTIN12 gene was associated with increased susceptibility to azoospermia caused by meiotic arrest.
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Affiliation(s)
- Toshinobu Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Midorigaokahigashi 2-1-1-1, Asahikawa, Hokkaido, 078-8510, Japan.
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Miyamoto T, Tsujimura A, Miyagawa Y, Koh E, Namiki M, Sengoku K. Male infertility and its causes in human. Adv Urol 2011; 2012:384520. [PMID: 22046184 PMCID: PMC3199180 DOI: 10.1155/2012/384520] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2011] [Accepted: 08/20/2011] [Indexed: 12/05/2022] Open
Abstract
Infertility is one of the most serious social problems facing advanced nations. In general, approximate half of all cases of infertility are caused by factors related to the male partner. To date, various treatments have been developed for male infertility and are steadily producing results. However, there is no effective treatment for patients with nonobstructive azoospermia, in which there is an absence of mature sperm in the testes. Although evidence suggests that many patients with male infertility have a genetic predisposition to the condition, the cause has not been elucidated in the vast majority of cases. This paper discusses the environmental factors considered likely to be involved in male infertility and the genes that have been clearly shown to be involved in male infertility in humans, including our recent findings.
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Affiliation(s)
- Toshinobu Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Midorigaokahigashi 2-1-1-1, Asahikawa, Hokkaido 078-8510, Japan
| | - Akira Tsujimura
- Department of Urology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Yasushi Miyagawa
- Department of Urology, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan
| | - Eitetsu Koh
- Department of Integrated Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Takaramachi 13-1, Kanazawa, Ishikawa 920-8641, Japan
| | - Mikio Namiki
- Department of Integrated Cancer Therapy and Urology, Kanazawa University Graduate School of Medical Science, Takaramachi 13-1, Kanazawa, Ishikawa 920-8641, Japan
| | - Kazuo Sengoku
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Midorigaokahigashi 2-1-1-1, Asahikawa, Hokkaido 078-8510, Japan
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Yamada T, Yamada T, Morikawa M, Cho K, Endo T, Sato SS, Saito T, Sengoku K, Minakami H. Pandemic (H1N1) 2009 in pregnant Japanese women in Hokkaido. J Obstet Gynaecol Res 2011; 38:130-6. [DOI: 10.1111/j.1447-0756.2011.01644.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [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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Miyakawa H, Miyamoto T, Koh E, Tsujimura A, Miyagawa Y, Saijo Y, Namiki M, Sengoku K. Single-nucleotide polymorphisms in the SEPTIN12 gene may be a genetic risk factor for Japanese patients with Sertoli cell-only syndrome. ACTA ACUST UNITED AC 2011; 33:483-7. [PMID: 21636737 DOI: 10.2164/jandrol.110.012146] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Genetic mechanisms have been implicated as a cause of some cases of male infertility. Recently, 10 novel genes involved in human spermatogenesis, including human SEPTIN12, were identified by expression microarray analysis of human testicular tissue. Septin12 is a member of the septin family of conserved cytoskeletal GTPases that form heteropolymeric filamentous structures in interphase cells. It is expressed specifically in the testis. Therefore, we hypothesized that mutation or polymorphisms of SEPTIN12 participate in male infertility, especially Sertoli cell-only syndrome (SCOS). To investigate whether SEPTIN12 gene defects are associated with azoospermia caused by SCOS, mutational analysis was performed in 100 Japanese patients by direct sequencing of coding regions. Statistical analysis was performed in patients with SCOS and in 140 healthy control men. No mutations were found in SEPTIN12 ; however, 8 coding single-nucleotide polymorphisms (SNP1-SNP8) could be detected in the patients with SCOS. The genotype and allele frequencies in SNP3, SNP4, and SNP6 were notably higher in the SCOS group than in the control group (P < .001). These results suggest that SEPTIN12 might play a critical role in human spermatogenesis.
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Affiliation(s)
- Hiroe Miyakawa
- Department of Obstetrics and Gynecology, School of Medicine, Asahikawa Medical University, Asahikawa, Japan
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Miyamoto T, Tsujimura A, Miyagawa Y, Koh E, Namiki M, Horikawa M, Saijo Y, Sengoku K. Single nucleotide polymorphism in the UBR2 gene may be a genetic risk factor for Japanese patients with azoospermia by meiotic arrest. J Assist Reprod Genet 2011; 28:743-6. [PMID: 21573678 DOI: 10.1007/s10815-011-9576-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Accepted: 04/20/2011] [Indexed: 02/03/2023] Open
Abstract
PURPOSE To investigate the association between the UBR2 gene and the risk of azoospermia caused by meiotic arrest. METHODS Mutational analysis of the UBR2 gene was performed using DNA from 30 patients with azoospermia by meiotic arrest to 80 normal controls. RESULTS The genotypic and allelic frequencies of c.1,066A>T variant were significantly higher in patient than control groups (p < 0.001). CONCLUSION The c.1,066A>T variant in the UBR2 gene is associated with increased susceptibility to azoospermia caused by meiotic arrest.
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Affiliation(s)
- Toshinobu Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa, Japan.
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Miyamoto T, Tsujimura A, Miyagawa Y, Koh E, Sato H, Namiki M, Sengoku K. Current concepts of human azoospermia and its causes. Reprod Med Biol 2010; 9:121-127. [PMID: 29699334 PMCID: PMC5904842 DOI: 10.1007/s12522-010-0054-5] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Accepted: 05/19/2010] [Indexed: 11/25/2022] Open
Abstract
Infertility is a serious social problem in advanced nations today. One of the most important causes is the male factor. Striking progress has been achieved in recent years in elucidating the mechanisms of spermatogenesis in mice by experimental methods represented by the knockout mouse. Although many factors associated with male infertility are known in mice, the translation of this information to people has been slow. This is because the knockout mouse phenotype cannot necessarily be reproduced faithfully in humans. However, it is known that environmental factors, chromosomal defects and several specific gene mutations result in human male infertility. In this review, we first discuss the environmental factors considered likely to be involved in male infertility, and secondly we describe the Y chromosome and several important genes on the Y chromosome that play critical roles in spermatogenesis in humans. Then, we demonstrate the three critical genes identified in our laboratory in autosomes involved in human spermatogenesis, the SYCP3, MEI1 and PARP-2. Finally, we explain the future directionality and possibilities of research in this field.
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Affiliation(s)
- Toshinobu Miyamoto
- Department of Obstetrics and GynecologyAsahikawa Medical CollegeMidorigaokahigashi 2‐1‐1‐1078‐8510AsahikawaHokkaidoJapan
| | - Akira Tsujimura
- Department of UrologyOsaka University Graduate School of MedicineSuitaJapan
| | - Yasushi Miyagawa
- Department of UrologyOsaka University Graduate School of MedicineSuitaJapan
| | - Eitetsu Koh
- Department of Integrated Cancer Therapy and UrologyKanazawa University Graduate School of Medical ScienceKanazawaJapan
| | - Hisashi Sato
- Department of Obstetrics and GynecologyAsahikawa Medical CollegeMidorigaokahigashi 2‐1‐1‐1078‐8510AsahikawaHokkaidoJapan
| | - Mikio Namiki
- Department of Integrated Cancer Therapy and UrologyKanazawa University Graduate School of Medical ScienceKanazawaJapan
| | - Kazuo Sengoku
- Department of Obstetrics and GynecologyAsahikawa Medical CollegeMidorigaokahigashi 2‐1‐1‐1078‐8510AsahikawaHokkaidoJapan
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Kishi R, Sasaki S, Yoshioka E, Yuasa M, Sata F, Saijo Y, Kurahashi N, Tamaki J, Endo T, Sengoku K, Nonomura K, Minakami H. Cohort profile: the Hokkaido study on environment and children's health in Japan. Int J Epidemiol 2010; 40:611-8. [PMID: 20504859 DOI: 10.1093/ije/dyq071] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Reiko Kishi
- Department of Public Health Sciences, Hokkaido University Graduate School of Medicine, Sapporo, Japan.
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Yamashita T, Katayama H, Kato Y, Nishiwaki K, Hayashi H, Miyokawa N, Sengoku K. Management of pelvic lymph nodes by sentinel node navigation surgery in the treatment of invasive cervical cancer. Int J Gynecol Cancer 2009; 19:1113-8. [PMID: 19820378 DOI: 10.1111/igc.0b013e3181a83d65] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
OBJECTIVE Diagnosis of lymph node metastasis is a critical issue in the treatment of cervical cancer. Many studies describing sentinel node navigation surgery (SNNS) for examination of node status have been reported in the past decade. In this study, the feasibility of node status diagnosis by SNNS, including intraoperative frozen section diagnosis, in patients with early and advanced cervical cancer was evaluated. PATIENTS AND METHODS Fifty-eight cervical cancer patients with early and advanced stage disease were enrolled. All patients were treated with backup pelvic lymphadenectomy after SNNS. To detect sentinel lymph nodes (SLNs), radioactive material and/or blue dye were used as tracers. Lymph nodes confirmed as SLNs were immediately sent to pathologists and diagnosed by frozen section intraoperatively. RESULTS A total of 118 and 16 SLNs were pathologically investigated in early and advanced stage cervical cancer, respectively. The detection rate of SLNs in the early and advanced stages was 94.7% and 66.7%, respectively, whereas the detection rate using 1 or 2 tracers was 62.5% and 90%, respectively. The false-negative rate and negative predictive value was 0% and 100% for all stages. Pathological diagnosis by frozen section was completed within 30 minutes in all cases. CONCLUSIONS Our data demonstrate that SNNS in cervical cancer is a promising procedure for patients with early stage (up to Ib1) disease, especially patients with small tumor diameter (<2.0 cm). However, SNNS raises several points for discussion before it can be established as a practical clinical procedure or as part of a subsequent radical hysterectomy.
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Affiliation(s)
- Tsuyoshi Yamashita
- Department of Obstetrics and Gynecology, Asahikawa Medical College, Midorigaoka-higashi 2-1-1-1, Asahikawa, Japan.
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Miyamoto T, Tsujimura A, Miyagawa Y, Koh E, Sakugawa N, Miyakawa H, Sato H, Namiki M, Okuyama A, Sengoku K. A single nucleotide polymorphism in SPATA17 may be a genetic risk factor for Japanese patients with meiotic arrest. Asian J Androl 2009; 11:623-8. [PMID: 19483714 DOI: 10.1038/aja.2009.30] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Genetic mechanisms have been implicated as a cause of some cases of male infertility. Recently, 10 novel genes involved in human spermatogenesis were identified by microarray analysis of human testicular tissue. One of these is spermatogenesis-associated 17 (SPATA17). To investigate whether defects in the SPATA17 gene are associated with azoospermia due to meiotic arrest, a mutational analysis was conducted, in which the SPATA17 coding regions of 18 Japanese patients with this condition were sequenced. A statistical analysis was carried out that included 18 patients with meiotic arrest, 20 patients with Sertoli-cell-only syndrome (SCOS) and 96 healthy control men. No mutations were found in SPATA17. However, three coding single nucleotide polymorphisms (cSNPs: SNP1-SNP3) were detected in the patients with meiotic arrest. No significant differences in the genotype or allele frequencies of SNP1 and SNP2 were found between patients with meiotic arrest and the others. However, the frequency of the SNP3 allele was significantly elevated in the meiotic arrest group (P < 0.05). This study suggests that SPATA17 may play a critical role in human spermatogenesis, especially in meiosis.
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Affiliation(s)
- Toshinobu Miyamoto
- Department of Obstetrics and Gynecology, Asahikawa Medical College, Asahikawa Hokkaido 078-8510, Japan.
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Osumi D, Takahashi M, Miyoshi E, Yokoe S, Lee SH, Noda K, Nakamori S, Gu J, Ikeda Y, Kuroki Y, Sengoku K, Ishikawa M, Taniguchi N. Core fucosylation of E-cadherin enhances cell-cell adhesion in human colon carcinoma WiDr cells. Cancer Sci 2009; 100:888-95. [DOI: 10.1111/j.1349-7006.2009.01125.x] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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