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Hirano M, Wada-Hiraike O, Fukui M, Shibata S, Uehara M, Nagumo A, Urata Y, Sone K, Harada M, Koga K, Osuga Y. Ulipristal (UPA) effects on rat ovaries: Unraveling follicle dynamics, ovulation inhibition, and safety implications for prolonged use. Reprod Toxicol 2024; 125:108571. [PMID: 38458359 DOI: 10.1016/j.reprotox.2024.108571] [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: 12/13/2023] [Revised: 02/22/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
Ulipristal (UPA), a selective progesterone receptor modulator, has both agonistic and antagonistic effects on progesterone receptors. UPA suppresses ovulation by inhibiting the luteinizing hormone (LH) surge from the pituitary gland; however, the direct effect of UPA on ovarian tissue remains poorly studied. In the present study, we examined the effects of UPA on the ovaries of rats. Rats were treated for 28 days with UPA, and the effects of UPA on ovarian tissue were examined histologically and the expression of antioxidant genes and cell death markers were also investigated. UPA treatment increased the number of primordial follicles at each treatment group, primordial follicles increased at all dose levels, but the size/magnitude of the effect decreased with the increasing dose. The number of primary and antral follicles tended to increase with increasing UPA levels. Furthermore, the decrease in primary follicle number could be attributed to the exhaustion of follicles, but the examination of proliferation markers, oxidative stress markers, and cell death markers revealed no remarkable toxic effects on ovarian tissues. These results suggest that UPA treatment promotes follicle development at each stage but inhibits ovulation by suppressing the LH surge, resulting in an increase in atretic follicles or unruptured luteinized cysts. These results suggest that UPA may not have both toxic effects on the ovary and a direct local effect on ovarian follicles, but we should be careful about the effects of prolonged UPA treatment in patients with uterine fibroids on their future fecundity.
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Affiliation(s)
- Mana Hirano
- Department of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo 1138655, Japan; Department of Obstetrics and Gynecology, Teikyo University, Tokyo 1738606, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo 1138655, Japan.
| | | | | | - Mari Uehara
- Department of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo 1138655, Japan
| | - Aiko Nagumo
- Department of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo 1138655, Japan
| | - Yoko Urata
- Department of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo 1138655, Japan
| | - Kenbun Sone
- Department of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo 1138655, Japan
| | - Miyuki Harada
- Department of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo 1138655, Japan
| | - Kaori Koga
- Department of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo 1138655, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo 1138655, Japan
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Hashimoto K, Kumagai T, Nomura K, Miyagawa Y, Tago S, Takasaki K, Takahashi Y, Nishida H, Ichinose T, Hirano M, Hiraike H, Wada-Hiraike O, Sasajima Y, Kim SH, Nagasaka K. Validation of an on-chip p16 ink4a/Ki-67 dual immunostaining cervical cytology system using microfluidic device technology. Sci Rep 2023; 13:17052. [PMID: 37816765 PMCID: PMC10564753 DOI: 10.1038/s41598-023-44273-6] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 10/05/2023] [Indexed: 10/12/2023] Open
Abstract
More specific screening systems for cervical cancer may become necessary as the human papillomavirus (HPV) vaccine becomes more widespread. Although p16/Ki-67 dual-staining cytology has several advantages, it requires advanced diagnostic skills. Here, we developed an automated on-chip immunostaining method using a microfluidic device. An electroactive microwell array (EMA) microfluidic device with patterned thin-film electrodes at the bottom of each microwell was used for single-cell capture by dielectrophoresis. Immunostaining and dual staining for p16/Ki-67 were performed on diagnosed liquid cytology samples using the EMA device. The numbers of p16/Ki-67 dual-stained cells captured by the EMA device were determined and compared among the cervical intraepithelial neoplasia (CIN) lesion samples. Seven normal, fifteen CIN grade 3, and seven CIN grade 2 samples were examined. The percentage of dual-positive cells was 18.6% in the CIN grade 2 samples and 23.6% in the CIN grade 3 samples. The percentages of dual-positive staining increased significantly as the severity of the cervical lesions increased. p16/Ki67 dual immunostaining using the EMA device is as sensitive as the conventional method of confirming the histopathological diagnosis of cervical samples. This system enables a quantified parallel analysis at the individual cell level.
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Affiliation(s)
- Kei Hashimoto
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan
| | - Tomoo Kumagai
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan
| | - Kyosuke Nomura
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan
| | - Yuko Miyagawa
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan
| | - Saori Tago
- Institute of Industrial Science, University of Tokyo, Tokyo, Japan
| | - Kazuki Takasaki
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan
| | - Yuko Takahashi
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan
| | - Haruka Nishida
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan
| | - Takayuki Ichinose
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan
| | - Mana Hirano
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan
| | - Haruko Hiraike
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuko Sasajima
- Department of Pathology, Teikyo University School of Medicine, Tokyo, Japan
| | - Soo Hyeon Kim
- Institute of Industrial Science, University of Tokyo, Tokyo, Japan
| | - Kazunori Nagasaka
- Department of Obstetrics and Gynecology, Teikyo University School of Medicine, Kaga 2-11-1, Itabashi-Ku, Tokyo, 173-8605, Japan.
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Matsuura Y, Nishida H, Kosaka T, Shigekawa K, Takasaki K, Ichinose T, Hirano M, Hiraike H, Nagasaka K. Case report: Posterior reversible encephalopathy syndrome, an adverse effect of lenvatinib and pembrolizumab combination therapy, in a patient with advanced endometrial cancer. Front Oncol 2023; 12:1079716. [PMID: 36741713 PMCID: PMC9895820 DOI: 10.3389/fonc.2022.1079716] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 12/28/2022] [Indexed: 01/22/2023] Open
Abstract
Background Lenvatinib-pembrolizumab combination (LEAP) is an approved therapy in Japan for advanced endometrial cancer, based on the data from the KEYNOTE-775 clinical trial. We report a case of posterior reversible encephalopathy syndrome (PRES) in a patient who received LEAP therapy for advanced endometrial cancer. Case presentation A 53-year-old patient with stage IVB endometrial cancer having rectal metastases, after four cycles of paclitaxel-carboplatin therapy, was found to have increased rectal invasion, peritoneal dissemination, and multiple paraaortic lymph node metastases. She was treated with LEAP therapy and discharged on day 12 without adverse events, except for mild anemia on day 11 of treatment. She was carefully managed in the outpatient department, but on day 18, she was admitted to the emergency department with severely impaired consciousness and generalized seizures. Computed tomography of the head and lumbar tap showed no abnormal findings, and the seizures resolved with anticonvulsant medication alone. Based on a thorough physical examination and findings on magnetic resonance imaging (MRI), which showed high signal intensity in the left occipital lobe, encephalopathy, rather than encephalitis, was the likely diagnosis. Symptomatic improvement was observed, and pembrolizumab monotherapy was resumed. Conclusions If consciousness is impaired during LEAP treatment, it is necessary to differentiate between immunogenic encephalitis caused by pembrolizumab or encephalopathy caused by lenvatinib. MRI and lumbar tap can help in distinguishing between the two and diagnosing the responsible drug.
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Uehara M, Wada-Hiraike O, Koga K, Yamamoto N, Hirano M, Harada M, Hirota Y, Osuga Y. Prediction of the final menstrual period in women taking Dienogest using estradiol and follicle-stimulating hormone values: a case-control study. Endocr J 2022; 69:1437-1445. [PMID: 36070964 DOI: 10.1507/endocrj.ej22-0158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Dienogest (DNG) is widely used to treat dysmenorrhea associated with estrogen-dependent diseases such as endometriosis and adenomyosis. DNG becomes unnecessary after menopause when estrogen secretion declines drastically. However, there are no clear criteria for when to halt DNG in perimenopausal patients. Menstruation and dysmenorrhea often resume after discontinuation due to approaching menopause. This case-control study used serum estradiol and follicle-stimulating hormone (FSH) levels to predict whether menstruation would resume in perimenopausal women after discontinuation of DNG. The study enrolled patients aged ≥40 years with endometriosis and/or adenomyosis and who had either completed oral DNG therapy (DNG group) or had spontaneous menopause without hormone therapy (control group). We assessed estradiol and FSH values before DNG termination or the final menstrual period. DNG group members that resumed menstruation after DNG termination (D (+) group, n = 17) had significantly higher estradiol and lower FSH levels than those who did not (D (-) group, n = 22) up to four months before DNG termination but not from four to 12 months. Estradiol and FSH levels were not significantly different between the D (-) and control groups. Receiver operating characteristic curves created from the estradiol and FSH values indicated that menstruation resumed when levels were ≥17 pg/mL and <100 mIU/mL, respectively. In contrast, menstruation did not resume in cases of estradiol ≤20 pg/mL and FSH >80 mIU/mL. The study results provide useful criteria for deciding when to terminate DNG in perimenopausal patients that consider their tolerance for resuming menstruation. Applications to menopause-inducing therapy for uterine fibroids and other conditions are anticipated. Further large-scale studies are needed.
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Affiliation(s)
- Mari Uehara
- Department of Obstetrics and Gynecology, University of Tokyo, Tokyo 113-8655, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, University of Tokyo, Tokyo 113-8655, Japan
| | - Kaori Koga
- Department of Obstetrics and Gynecology, University of Tokyo, Tokyo 113-8655, Japan
| | - Naoko Yamamoto
- Department of Obstetrics and Gynecology, University of Tokyo, Tokyo 113-8655, Japan
| | - Mana Hirano
- Department of Obstetrics and Gynecology, University of Tokyo, Tokyo 113-8655, Japan
| | - Miyuki Harada
- Department of Obstetrics and Gynecology, University of Tokyo, Tokyo 113-8655, Japan
| | - Yasushi Hirota
- Department of Obstetrics and Gynecology, University of Tokyo, Tokyo 113-8655, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, University of Tokyo, Tokyo 113-8655, Japan
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Uehara M, Hiraike O, Hirano M, Harada M, Koga K, Yoshimura N, Tanaka S, Osuga Y. Evaluation of atherosclerosis-related biomarkers during perimenopause: A prospective cohort study in women with endometriosis. J Obstet Gynaecol Res 2022; 48:3160-3170. [PMID: 36168257 DOI: 10.1111/jog.15447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/26/2022]
Abstract
AIM Endometriosis is linked to asymptomatic atherosclerosis and increases the risk of cardiovascular disease (CVD). Vascular function tests are used to assess atherosclerosis, an important indicator of CVD development. In this study, we aimed to evaluate atherosclerosis-related biomarkers, such as vascular function tests and laboratory data, in perimenopausal women with endometriosis. METHODS This prospective cohort study enrolled 207 women (≥40 years old) with endometriosis. Laboratory data, ankle brachial index (ABI), and cardio-ankle vascular index (CAVI) were evaluated. RESULTS The mean age, CAVI, and ABI of the participants at the initial examination were 45.02 years, 6.9 ± 0.6, and 1.07 ± 0.06, respectively. In multiple regression analysis, no factor was associated with CAVI, but ABI was significantly correlated with elevated total cholesterol (TC), low-density lipoprotein cholesterol, and estradiol (partial regression coefficient [β] = -0.00074, p = 0.017; β = -0.00075, p = 0.033; and β = -0.00022, p = 0.015, respectively). The annual rate of change in CAVI showed a positive correlation with TC and pentosidine and a negative correlation with history of hormone therapy. Neither correlation was strong. In a comparison of three groups classified by the annual rate of change in CAVI, the group with the severe change had a higher level of pentosidine. In adjusted multinomial logistic regression analysis, high pentosidine levels were a risk factor for increased rate of change in CAVI. CONCLUSIONS The association between CAVI and serum markers related to lipid metabolism and ovarian function was mild. Longitudinal analysis of CAVI showed an association with pentosidine, which may be helpful in assessing atherosclerosis risk in women with endometriosis during perimenopause.
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Affiliation(s)
- Mari Uehara
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - Osamu Hiraike
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - Mana Hirano
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - Miyuki Harada
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - Kaori Koga
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - Noriko Yoshimura
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical and Research Center, The University of Tokyo, Tokyo, Japan
| | - Sakae Tanaka
- Department of Sensory and Motor System Medicine, The University of Tokyo, Tokyo, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
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Uehara M, Wada-Hiraike O, Hirano M, Koga K, Yoshimura N, Tanaka S, Osuga Y. Relationship between bone mineral density and ovarian function and thyroid function in perimenopausal women with endometriosis: a prospective study. BMC Womens Health 2022; 22:134. [PMID: 35477494 PMCID: PMC9044768 DOI: 10.1186/s12905-022-01711-3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 04/13/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND In women with endometriosis, the association between ovarian function, hormones, and bone mineral density (BMD) is unclear. Therefore, this study aimed to elucidate the association between changes in bone mineral density (BMD) and clinical data, such as ovarian reserves, in perimenopausal women with endometriosis. METHODS In this prospective study, we evaluated 207 female patients who visited the Department of Obstetrics and Gynecology at the University of Tokyo Hospital between December 2015 and December 2020. We included patients aged ≥ 40 years with a history of endometriosis or who presented with endometriosis lesions. Patients with a history of smoking, steroid administration, autoimmune diseases, dyslipidaemia, and heart disease were excluded. During the study period, patients who underwent two tests, an initial and a follow-up test (n = 142, average age: 45.02 years, average BMD: 1.16 g/cm2), were evaluated at regular intervals based on the annual rate of change in BMD. RESULTS There was a weak negative correlation between the follicle-stimulating hormone (FSH) and BMD and a weak positive correlation between the anti-Müllerian hormone (AMH) and BMD. The annual rate of change in BMD showed a very weak correlation with thyroid-stimulating hormone (TSH) levels. A large decline in BMD was associated with high TSH levels and higher average age at menopause. Patients with higher TSH exhibited a higher rate of decrease in BMD than those without. CONCLUSIONS High FSH or low AMH levels are associated with decreased BMD. Decreased ovarian reserve is associated with decreased BMD in perimenopausal women with endometriosis. High TSH levels increase the risk of BMD loss. This finding may suggest that women with endometriosis should undergo bone scanning to rule out the possibility of reduced bone mass and subsequent increased risk of fracture.
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Affiliation(s)
- Mari Uehara
- Department of Obstetrics and Gynecology, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan.
| | - Mana Hirano
- Department of Obstetrics and Gynecology, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Kaori Koga
- Department of Obstetrics and Gynecology, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Noriko Yoshimura
- Department of Preventive Medicine for Locomotive Organ Disorders, 22nd Century Medical and Research Center, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Sakae Tanaka
- Department of Sensory and Motor System Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, The University of Tokyo, Bunkyo-ku, Tokyo, 113-8655, Japan
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Shimamoto K, Hirano M, Wada-Hiraike O, Goto R, Osuga Y. Examining the association between menstrual symptoms and health-related quality of life among working women in Japan using the EQ-5D. BMC Womens Health 2021; 21:325. [PMID: 34493264 PMCID: PMC8424948 DOI: 10.1186/s12905-021-01462-7] [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] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 08/20/2021] [Indexed: 11/15/2022]
Abstract
Background Menstrual symptoms have been identified as a substantial burden among women of reproductive age, affecting their health status and quality of life globally. A range of menstrual symptoms have been studied as they affect the health-related quality of life (HRQoL), showing variations across specific menstrual symptoms and study settings. A major concern is demonstrated due to menstrual symptoms in women’s professional and social life, and consequently societal and economic loss for women and the society at large. Yet evidence is scarce that estimates the index form HRQoL score related to menstrual symptoms that is needed for health economic evaluations. Methods This study aims to investigate the association between menstrual symptoms and the HRQoL among working women in Japan in an index form, using a self-reporting questionnaire (n = 6048). The EQ-5D-3L (EuroQoL 5-dimension 3-level) is used that is a widely used tool to measure health outcomes for health economic evaluations globally. Multivariate regression analysis is conducted to assess the association between the HRQoL score and specific nineteen physical and mental conditions related to menstruation (e.g., pain, heavy bleeding, concentration, negative affect). Results The index form HRQoL score for menstrual symptoms is estimated as 0.682 in the study population (where a score one suggests perfect health). The association of the HRQoL score varies substantially across the menstrual symptoms. Several of the physical conditions and disorders show a substantial negative association with the HRQoL score. Also, most of the mental and psychological issues are significantly and negatively related to the HRQoL score. Conclusions This study suggests that HRQoL is substantially and negatively affected by menstruation among working women in Japan. Distinct variations of negative influences across menstrual symptoms underscore the multi-dimensional nature of menstruation and consequently the need of collective interventions to address these difficulties. The evidence of HRQoL continues to be an important area for future research on women’s health and health economic evaluations to inform effective and efficient resource allocations for relevant health policies and financing strategies.
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Affiliation(s)
- Kyoko Shimamoto
- Graduate School of Health Management, Keio University, 35 Shinanomachi, Shinjyuku, Tokyo, 160-8582, Japan.
| | - Mana Hirano
- Department of Obstetrics and Gynecology, Mitsui Memorial Hospital, Kanda-Izumi-cho 1, Chiyoda-ku, Tokyo, 101-8643, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
| | - Rei Goto
- Graduate School of Health Management, Keio University, 35 Shinanomachi, Shinjyuku, Tokyo, 160-8582, Japan.,Graduate School of Business Administration, Keio University, 4-1-1 Hiyoshi, Yokohama, Kanagawa, 223-8526, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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Yamamoto N, Wada-Hiraike O, Hirano M, Hirata T, Harada M, Hirota Y, Koga K, Fujii T, Osuga Y. Ovarian reserve may influence the outcome of bone mineral density in patients with long-term use of dienogest. SAGE Open Med 2021; 9:20503121211005992. [PMID: 35154758 PMCID: PMC8826102 DOI: 10.1177/20503121211005992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 03/05/2021] [Indexed: 11/17/2022] Open
Abstract
Objective: Long-term administration of dienogest, which is known to have effect on bone mineral density, is frequently done in patients with endometriosis and adenomyosis, but a few studies focused on the bone mineral density changes after finishing the long-term therapy. This study aimed to reveal the factors that adversely affect lumbar bone mineral density. Method: Fifty-seven premenopausal women who visited our hospital were diagnosed as either endometriosis or adenomyosis, and they were treated by dienogest for more than 115 weeks (26.5 months). Based on a previous report, bone mineral density changes less than 2% was categorized as the osteopenic group ( n = 30), and the others were assigned to the unchanged group ( n = 27). Bone mineral density was measured at the lumbar spine using dual-energy X-ray absorptiometry. A representative ovarian reserve marker, endogenous estradiol levels, and follicle-stimulating hormone levels were measured over time and were compared between the osteopenic and unchanged groups. Result: Duration of dienogest intake was 59.5 months (osteopenic group) versus 57.5 months (unchanged group). These patients experienced ovarian surgeries in a similar frequency, but the ovarian reserve in osteopenic group was impaired as suggested by the decline of endogenous estradiol level during intake of dienogest compared to that of unchanged group ( p = 0.0146). Endogenous follicle-stimulating hormone level between osteopenic group and unchanged group did not reach statistically significant difference, although the osteopenic group showed relatively higher level. Conclusion: This study might suggest that decreased ovarian reserve as judged by endogenous estradiol level is a factor that negatively affect bone mineral density, and measurement of endogenous estradiol level during intake of dienogest could have a predictive meaning of future decreased bone mineral density level.
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Affiliation(s)
- N Yamamoto
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - O Wada-Hiraike
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - M Hirano
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - T Hirata
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - M Harada
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - Y Hirota
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - K Koga
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - T Fujii
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
| | - Y Osuga
- Department of Obstetrics and Gynecology, The University of Tokyo, Tokyo, Japan
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Fujikawa T, Honda K, Ito T, Kishino M, Kimura N, Umezawa N, Hirano M, Aoki N, Kawashima Y, Tsutsumi T. Enhanced fallopian canal as a potential marker for temporal bone vasculitis. Laryngoscope Investig Otolaryngol 2020; 5:1168-1175. [PMID: 33364409 PMCID: PMC7752078 DOI: 10.1002/lio2.489] [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: 07/01/2020] [Revised: 10/23/2020] [Accepted: 10/23/2020] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVES This study aimed to test the hypothesis that contrast-enhanced 3D MRI with gradient-echo sequences (CE-3D-GRE) can detect signs of vasculitis in the fallopian canal, which may cause otologic involvement, in four patients with antineutrophil cytoplasmic antibody-associated vasculitis (AAV). METHODS CE-3D-GRE acquired at 3.0 Tesla was performed on four patients diagnosed with granulomatosis with polyangiitis or eosinophilic granulomatosis with polyangiitis, at onset or relapse of the disease, and in remission. Clinical correlations between otologic symptoms and radiological findings were examined for each patient. Furthermore, signal intensity of the mastoid segment of the fallopian canal was compared between the ears with active disease (n = 3) and those in remission or without vasculitis (n = 3). RESULTS Intense enhancement in the tympanic and mastoid segments of the fallopian canal was associated with development of external otitis, otitis media, and sensorineural hearing loss, and was unrelated to the presence of facial paresis. Maximal intensity projection images visualized the close relationship between the enhanced fallopian canal and middle ear inflammation. The findings were absent in remission. Signal intensity of the mastoid segment of the fallopian canal was higher in ears with active disease than in normal ears (P < .001) and decreased to normal levels during remission (P = .597). CONCLUSION CE-3D-GRE can demonstrate vasculitis in the temporal bone, reflecting disease activity and the severity of otologic manifestations, including cochlear involvement, in AAV patients. Intense enhancement of the fallopian canal on CE-3D-GRE can be a potential marker for vasculitis of the temporal bone. LEVEL OF EVIDENCE 5.
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Affiliation(s)
- Taro Fujikawa
- Department of OtolaryngologyTokyo Medical and Dental UniversityTokyoJapan
| | - Keiji Honda
- Department of OtolaryngologyTokyo Medical and Dental UniversityTokyoJapan
| | - Taku Ito
- Department of OtolaryngologyTokyo Medical and Dental UniversityTokyoJapan
| | - Mitsuhiro Kishino
- Department of RadiologyTokyo Medical and Dental UniversityTokyoJapan
| | - Naoki Kimura
- Department of RheumatologyTokyo Medical and Dental UniversityTokyoJapan
| | - Natsuka Umezawa
- Department of RheumatologyTokyo Medical and Dental UniversityTokyoJapan
| | - Mana Hirano
- Department of RheumatologyNational Defence Medical CollegeTokorozawaJapan
| | - Natsuki Aoki
- Department of OtolaryngologyTokyo Medical and Dental UniversityTokyoJapan
| | | | - Takeshi Tsutsumi
- Department of OtolaryngologyTokyo Medical and Dental UniversityTokyoJapan
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10
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Hirano M, Sakurada M, Furuya S. Overcoming the ceiling effects of experts' motor expertise through active haptic training. Sci Adv 2020; 6:6/47/eabd2558. [PMID: 33219034 PMCID: PMC7679166 DOI: 10.1126/sciadv.abd2558] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 10/06/2020] [Indexed: 06/11/2023]
Abstract
One of the most challenging issues among experts is how to improve motor skills that have already been highly trained. Recent studies have proposed importance of both genetic predisposition and accumulated amount of practice for standing at the top of fields of sports and performing arts. In contrast to the two factors, what is unexplored is how one practices impacts on experts' expertise. Here, we show that training of active somatosensory function (active haptic training) enhances precise force control in the keystrokes and somatosensory functions specifically of expert pianists, but not of untrained individuals. By contrast, training that merely repeats the task with provision of error feedback, which is a typical training method, failed to improve the force control in the experts, but not in the untrained. These findings provide evidence that the limit of highly trained motor skills could be overcome by optimizing training methods.
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Affiliation(s)
- M Hirano
- Sony Computer Science Laboratories Inc. (SONY CSL), Tokyo, Japan.
- Sophia University, Tokyo, Japan
| | - M Sakurada
- Sony Computer Science Laboratories Inc. (SONY CSL), Tokyo, Japan
- Sophia University, Tokyo, Japan
| | - S Furuya
- Sony Computer Science Laboratories Inc. (SONY CSL), Tokyo, Japan
- Sophia University, Tokyo, Japan
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11
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Ali QA, Domínguez-González C, Cohen B, Berardo A, Haas R, Konersman C, McFarland R, D'Souza G, Quan J, Thompson B, Hirano M. MITOCHONDRIAL DISEASES & METABOLIC MYOPATHIES. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.310] [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: 10/23/2022]
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12
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Paradas C, Domínguez-González C, Madruga-Garrido M, Hirano M, Martí I, Munell F, Nascimento A, Olivé M, Quan J, Sardina D, Martí R. MITOCHONDRIAL DISEASES & METABOLIC MYOPATHIES. Neuromuscul Disord 2020. [DOI: 10.1016/j.nmd.2020.08.312] [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: 11/30/2022]
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13
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Isono C, Hirano M, Fukuda K, Samukawa M, Saigoh K, Nakamura Y, Kusunoki S. Clinical features and progression of dysphagia in bulbar-onset or limb-onset amyotrophic lateral sclerosis between patients with genetic mutations and those without mutations. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.1213] [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: 10/25/2022]
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14
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Samukawa M, Hirano M, Saigoh K, Kawai S, Hamada Y, Takahashi D, Nakamura Y, Kusunoki S. CTA/CTG repeat sizes in the atxn8os gene afefct age at onset and phenotype in spinocerebellar ATAXIA type8. J Neurol Sci 2019. [DOI: 10.1016/j.jns.2019.10.1516] [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: 10/25/2022]
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15
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Abstract
A 34-year-old woman presented our hospital with complaint of irregular menstruation and abnormal uterine bleeding lasting for a month. After her second parturition at the age of 27, her menstrual cycle had been regular, but it suddenly became irregular at the age of 30. Transvaginal ultrasound revealed the presence of ovarian mass, and the patient underwent diagnostic laparoscopic surgery. Bilateral ovaries temporally shrink after puncture but the size soon resumed. Gonadotropins were almost normal, but estradiol and PRL levels turned out to be elevated, and cabergoline treatment was initiated. After referral to our hospital, we found that the ovaries showed multifollicular appearance. Brain magnetic resonance imaging showed an 18-mm macroadenoma in the suprasellar area. To suppress the secretion of endogenous gonadotropins and estrogen, low-dose estrogen-progestin was prescribed. Surprisingly, the treatment temporarily reduced the size of the ovaries. The patient was referred to a neurosurgeon, and a functioning gonadotroph adenoma was suspected. After the resection of the pituitary tumor, her menstrual cycle became regular, and the size of bilateral ovaries became normal. We also noticed that her ovarian reserve judged by anti-Müllerian hormone had been almost diminished after the surgical treatment, probably reflecting the exhaustion of follicular pool. Women with multifollicular ovaries and elevated estradiol levels may have functioning gonadotroph adenomas, although the level of FSH is relatively normal, and ovarian reserve can be followed by measuring anti-Müllerian hormone.
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Affiliation(s)
- Mana Hirano
- Department of Obstetrics and Gynecology, The University of Tokyo Hospital, Tokyo 1138655, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, The University of Tokyo Hospital, Tokyo 1138655, Japan
| | - Yuichiro Miyamamoto
- Department of Obstetrics and Gynecology, The University of Tokyo Hospital, Tokyo 1138655, Japan
| | - Shozo Yamada
- Department of Pituitary and Hypothalamic Surgery, Toranomon Hospital, Tokyo 1058470, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, The University of Tokyo Hospital, Tokyo 1138655, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, The University of Tokyo Hospital, Tokyo 1138655, Japan
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16
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Akino N, Wada-Hiraike O, Isono W, Terao H, Honjo H, Miyamoto Y, Tanikawa M, Sone K, Hirano M, Harada M, Hirata T, Hirota Y, Koga K, Oda K, Fujii T, Osuga Y. Activation of Nrf2/Keap1 pathway by oral Dimethylfumarate administration alleviates oxidative stress and age-associated infertility might be delayed in the mouse ovary. Reprod Biol Endocrinol 2019; 17:23. [PMID: 30760288 PMCID: PMC6375213 DOI: 10.1186/s12958-019-0466-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 02/08/2019] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Age-associated infertility is a problem worldwide, and management of oxidative stress is known to be essential. Nuclear factor-E2-related factor 2 (Nrf2)/Kelch-like ECH-associated protein 1 (Keap1)-antioxidant response element (ARE) signaling pathway works as an essential defense mechanism against oxidative stress, and an oral drug Dimethylfumarate (DMF) is known to activate the pathway. METHODS We tested the hypothesis that oral DMF could alleviate oxidative stress in the ovary, resulting in salvation of age-associated infertility in a mouse model of reproductive age, and we examined the effects of DMF administration. 20 mg/kg DMF was administrated to female mice from 32 to 48 weeks, and Nrf2 levels, antioxidant levels, ovarian reserve, DNA damage, and oxidative stress were examined. RESULTS DMF administration resulted in elevated mRNA and protein levels of Nrf2, antioxidants, and telomere, and serum levels of Nrf2 and anti-mullerian hormone were also elevated. Results of TUNEL assay and Immunohistochemistry of mice ovarian tissues showed that DNA damage and oxidative stress were decreased by DMF administration, and significantly more oocytes were collected along with preservation of 60% more primordial follicles. CONCLUSIONS Our data suggest that DMF administration activates the Nrf2/Keap1 pathway, elevate levels of antioxidants, and decrease DNA damage and oxidative stress, resulting in improved ovarian reserve in the mouse ovary.
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Affiliation(s)
- Nana Akino
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Osamu Wada-Hiraike
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Wataru Isono
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
- 0000 0000 9239 9995grid.264706.1Department of Obstetrics and Gynecology, Mizonokuchi Hospital, Teikyo University, Kawasaki, 2138507 Japan
| | - Hiromi Terao
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Harunori Honjo
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Yuichiro Miyamoto
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Michihiro Tanikawa
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Kenbun Sone
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Mana Hirano
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Miyuki Harada
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Tetsuya Hirata
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Yasushi Hirota
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Kaori Koga
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Katsutoshi Oda
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Tomoyuki Fujii
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
| | - Yutaka Osuga
- 0000 0001 2151 536Xgrid.26999.3dDepartment of Obstetrics and Gynecology, Graduate school of Medicine, The University of Tokyo, Tokyo, 1138655 Japan
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17
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Yoshinouchi Y, Hirano M, Nakata H, Nomyamai K, Tanabe S, Kim EY, Iwata H. Structure-activity relationships of Baikal seal estrogen receptors and environmental phenols. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.703] [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: 11/30/2022]
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18
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Amamizu H, Matsumoto Y, Morosawa S, Ohyama K, Uzuka H, Hirano M, Sugisawa J, Tsuchiya S, Nishimiya K, Hayashi M, Kawai Y, Shimokawa H. 2435Important roles of cardiac lymphatic vessels in the regulation of coronary vasomotion after DES implantation in pigs in vivo. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.2435] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- H Amamizu
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - Y Matsumoto
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Morosawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Ohyama
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - H Uzuka
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Hirano
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - J Sugisawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - S Tsuchiya
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - K Nishimiya
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
| | - M Hayashi
- Tohoku Pharmaceutical University Hospital, Physiology, Sendai, Japan
| | - Y Kawai
- Tohoku Pharmaceutical University Hospital, Physiology, Sendai, Japan
| | - H Shimokawa
- Tohoku University Graduate School of Medicine, Cardiovascular Medicine, Sendai, Japan
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19
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Akino N, Wada-Hiraike O, Terao H, Honjoh H, Isono W, Fu H, Hirano M, Miyamoto Y, Tanikawa M, Harada M, Hirata T, Hirota Y, Koga K, Oda K, Kawana K, Fujii T, Osuga Y. Activation of Nrf2 might reduce oxidative stress in human granulosa cells. Mol Cell Endocrinol 2018; 470:96-104. [PMID: 28986302 DOI: 10.1016/j.mce.2017.10.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 09/08/2017] [Accepted: 10/02/2017] [Indexed: 12/15/2022]
Abstract
Nuclear factor-E2-related factor 2 (Nrf2)/Kelch-like ECH-associated protein 1 (Keap1)-antioxidant response element (ARE) signaling pathway is one of the most important defense mechanisms against oxidative stress (OS). It is well documented that equilibration status of OS plays fundamental roles in human reproductive medicine, and the physiological role of Nrf2 in ovarian granulosa cells (GCs) has not been determined yet. Herein we aimed to study the function of Nrf2 in GCs. Human ovarian tissues were subjected to immunohistochemistry to localize Nrf2 and Keap1 and we detected the expression of Nrf2 and Keap1 in the human GCs. Human luteinized GCs were isolated and cultured, and hydrogen peroxide (H2O2) or Dimethylfumarates (DMF), an activator of Nrf2, were added to GCs to analyze the relationship between Nrf2 and antioxidants by quantitative RT-PCR. The mRNA levels of Nrf2, catalase, superoxide dismutase 1 (SOD1), and 8-Oxoguanine DNA glycosylase (OGG1) were elevated by H2O2, and DMF treatment showed similar but pronounced effects through activation of Nrf2. To determine the relationship of Nrf2 and the generation of antioxidants, siRNAs were used and quantitative RT-PCR were conducted. Decreased expression of Nrf2 resulted in a decreased level of these antioxidant mRNA. Intracellular levels of ROS were investigated by fluorescence of 8-hydroxy-2'-deoxyguanosine and fluorescent dye, 2',7'-dichlorodihydrofluorescein diacetate after H2O2 and/or DMF treatment, and DMF treatment quenched intracellular ROS generation by H2O2. These results show that activation of Nrf2 might lead to alleviate OS in human GCs, and this could provide novel insight to conquer the age-related fertility decline that is mainly attributed to the accumulation of aberrant OS.
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Affiliation(s)
- Nana Akino
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan.
| | - Hiromi Terao
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Harunori Honjoh
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Wataru Isono
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan; Department of Physiological Chemistry and Metabolism, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Houju Fu
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Mana Hirano
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Yuichiro Miyamoto
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Michihiro Tanikawa
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Miyuki Harada
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Tetsuya Hirata
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Yasushi Hirota
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Kaori Koga
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Katsutoshi Oda
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Kei Kawana
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113 8655, Japan
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20
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Gramegna LL, Pisano A, Testa C, Manners DN, D'Angelo R, Boschetti E, Giancola F, Pironi L, Caporali L, Capristo M, Valentino ML, Plazzi G, Casali C, Dotti MT, Cenacchi G, Hirano M, Giordano C, Parchi P, Rinaldi R, De Giorgio R, Lodi R, Carelli V, Tonon C. Cerebral Mitochondrial Microangiopathy Leads to Leukoencephalopathy in Mitochondrial Neurogastrointestinal Encephalopathy. AJNR Am J Neuroradiol 2018; 39:427-434. [PMID: 29348134 DOI: 10.3174/ajnr.a5507] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 10/30/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND AND PURPOSE Mitochondrial neurogastrointestinal encephalopathy is a rare disorder due to recessive mutations in the thymidine phosphorylase gene, encoding thymidine phosphorylase protein required for mitochondrial DNA replication. Clinical manifestations include gastrointestinal dysmotility and diffuse asymptomatic leukoencephalopathy. This study aimed to elucidate the mechanisms underlying brain leukoencephalopathy in patients with mitochondrial neurogastrointestinal encephalopathy by correlating multimodal neuroradiologic features to postmortem pathology. MATERIALS AND METHODS Seven patients underwent brain MR imaging, including single-voxel proton MR spectroscopy and diffusion imaging. Absolute concentrations of metabolites calculated by acquiring unsuppressed water spectra at multiple TEs, along with diffusion metrics based on the tensor model, were compared with those of healthy controls using unpaired t tests in multiple white matters regions. Brain postmortem histologic, immunohistochemical, and molecular analyses were performed in 1 patient. RESULTS All patients showed bilateral and nearly symmetric cerebral white matter hyperintensities on T2-weighted images, extending to the cerebellar white matter and brain stem in 4. White matter, N-acetylaspartate, creatine, and choline concentrations were significantly reduced compared with those in controls, with a prominent increase in the radial water diffusivity component. At postmortem examination, severe fibrosis of brain vessel smooth muscle was evident, along with mitochondrial DNA replication depletion in brain and vascular smooth-muscle and endothelial cells, without neuronal loss, myelin damage, or gliosis. Prominent periependymal cytochrome C oxidase deficiency was also observed. CONCLUSIONS Vascular functional and histologic alterations account for leukoencephalopathy in mitochondrial neurogastrointestinal encephalopathy. Thymidine toxicity and mitochondrial DNA replication depletion may induce microangiopathy and blood-brain-barrier dysfunction, leading to increased water content in the white matter. Periependymal cytochrome C oxidase deficiency could explain prominent periventricular impairment.
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Affiliation(s)
- L L Gramegna
- From the Functional MR Unit (L.L.G., C.T., D.N.M., R.L., C.T.).,Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.)
| | - A Pisano
- Departments of Radiology, Oncology, and Pathology (A.P., C.G.)
| | - C Testa
- From the Functional MR Unit (L.L.G., C.T., D.N.M., R.L., C.T.).,Neurology Unit (R.D., R.R.), S.Orsola-Malpighi Hospital, Bologna, Italy.,Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.)
| | - D N Manners
- From the Functional MR Unit (L.L.G., C.T., D.N.M., R.L., C.T.).,Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.)
| | - R D'Angelo
- Neurology Unit (R.D., R.R.), S.Orsola-Malpighi Hospital, Bologna, Italy
| | - E Boschetti
- Surgical and Medical Sciences (E.B., F.G., L.P., R.D.G.), University of Bologna, Bologna, Italy
| | - F Giancola
- Surgical and Medical Sciences (E.B., F.G., L.P., R.D.G.), University of Bologna, Bologna, Italy
| | - L Pironi
- Surgical and Medical Sciences (E.B., F.G., L.P., R.D.G.), University of Bologna, Bologna, Italy
| | - L Caporali
- Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.).,Istituto di Ricovero e Cura a Carattere Scientifico Institute of Neurological Sciences (L.C., M.C., M.L.V., G.P., P.P., V.C.), Bologna, Italy
| | - M Capristo
- Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.).,Istituto di Ricovero e Cura a Carattere Scientifico Institute of Neurological Sciences (L.C., M.C., M.L.V., G.P., P.P., V.C.), Bologna, Italy
| | - M L Valentino
- Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.).,Istituto di Ricovero e Cura a Carattere Scientifico Institute of Neurological Sciences (L.C., M.C., M.L.V., G.P., P.P., V.C.), Bologna, Italy
| | - G Plazzi
- Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.).,Istituto di Ricovero e Cura a Carattere Scientifico Institute of Neurological Sciences (L.C., M.C., M.L.V., G.P., P.P., V.C.), Bologna, Italy
| | - C Casali
- Medico-Surgical Sciences and Biotechnologies (C.C.), Sapienza, University of Rome, Rome, Italy
| | - M T Dotti
- Department of Medicine, Surgery, and Neuroscience (M.T.D.), University of Siena, Siena, Italy
| | - G Cenacchi
- Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.)
| | - M Hirano
- Department of Neurology (M.H.), Columbia University Medical Centre, New York, New York
| | - C Giordano
- Departments of Radiology, Oncology, and Pathology (A.P., C.G.)
| | - P Parchi
- Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.).,Istituto di Ricovero e Cura a Carattere Scientifico Institute of Neurological Sciences (L.C., M.C., M.L.V., G.P., P.P., V.C.), Bologna, Italy
| | - R Rinaldi
- Neurology Unit (R.D., R.R.), S.Orsola-Malpighi Hospital, Bologna, Italy
| | - R De Giorgio
- Surgical and Medical Sciences (E.B., F.G., L.P., R.D.G.), University of Bologna, Bologna, Italy
| | - R Lodi
- From the Functional MR Unit (L.L.G., C.T., D.N.M., R.L., C.T.) .,Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.)
| | - V Carelli
- Departments of Biomedical and Neuromotor Sciences (L.L.G., C.T., D.N.M., L.C., M.C., M.L.V., G.P., G.C., P.P., R.L., V.C., C.T.).,Istituto di Ricovero e Cura a Carattere Scientifico Institute of Neurological Sciences (L.C., M.C., M.L.V., G.P., P.P., V.C.), Bologna, Italy
| | - C Tonon
- From the Functional MR Unit (L.L.G., C.T., D.N.M., R.L., C.T.)
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Hirano M, Nakamura Y, Saigoh K, Samukawa M, Kusunoki S. COQ2 gene analyses in multiple system atrophy and other neurodegenerative diseases and treatment of patients’ cells with coenzyme Q10. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Nishioka K, Hirano M, Stoessl A, Yoshino H, Imamichi Y, Ikeda A, Li Y, Funayama M, Yamada I, Yusaku N, Sossi V, Farrer M, Hattori N. Homozygous alpha-synuclein a53v in familial parkinson's disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.471] [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: 10/18/2022]
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23
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Nakamura Y, Sakamoto H, Ueno S, Hirano M, Toge T. P002 Abnormal surround inhibition of finger tapping task and cerebellar hyper-activation of functional MRI in patients with focal hand dystonia. Clin Neurophysiol 2017. [DOI: 10.1016/j.clinph.2016.10.133] [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: 11/16/2022]
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Hirano M, Wada-Hiraike O, Fu H, Akino N, Isono W, Sakurabashi A, Fukuda T, Morita Y, Tanikawa M, Miyamoto Y, Nishi Y, Yanase T, Harada M, Oishi H, Yano T, Koga K, Oda K, Kawana K, Fujii T, Osuga Y. The Emerging Role of FOXL2 in Regulating the Transcriptional Activation Function of Estrogen Receptor β. Reprod Sci 2016; 24:133-141. [DOI: 10.1177/1933719116651150] [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] [Indexed: 11/16/2022]
Affiliation(s)
- Mana Hirano
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Houju Fu
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Nana Akino
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Wataru Isono
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Ayako Sakurabashi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tomohiko Fukuda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoshihiro Morita
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Michihiro Tanikawa
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yuichiro Miyamoto
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yoshihiro Nishi
- Department of Physiology, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Toshihiko Yanase
- Department of Endocrinology and Diabetes Mellitus, School of Medicine, Fukuoka University, Fukuoka, Japan
| | - Miyuki Harada
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Hajime Oishi
- Department of Obstetrics and Gynecology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Tetsu Yano
- Department of Obstetrics and Gynecology, National Center for Global Health and Medicine, Tokyo, Japan
| | - Kaori Koga
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Katsutoshi Oda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Kei Kawana
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
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25
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Liu Y, Mizumoto A, Ishibashi H, Takeshita K, Hirano M, Ichinose M, Takegawa S, Yonemura Y. Should total gastrectomy and total colectomy be considered for selected patients with severe tumor burden of pseudomyxoma peritonei in cytoreductive surgery? Eur J Surg Oncol 2016; 42:1018-23. [DOI: 10.1016/j.ejso.2016.04.059] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 03/24/2016] [Accepted: 04/18/2016] [Indexed: 01/26/2023] Open
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26
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Suzuki T, Hirano M, Yamamoto Y. Examination of Visceral Perception and Gastric Tone by Gastric Stimulation Using Air Inflation during Endoscopy. J Int Med Res 2016; 33:160-9. [PMID: 15790127 DOI: 10.1177/147323000503300203] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study investigated the assessment of visceral perception and gastric tone using insufflation during endoscopy. The intragastric pressure was measured during insufflation in 16 patients with gastro-oesophageal reflux disease, 25 patients with functional dyspepsia and 24 normal controls, using a pressure transducer inserted through the forceps aperture until gastric symptoms appeared. The intragastric pressure at the visceral perception threshold, the time to threshold and the time-pressure curve gradient were measured. The visceral perception threshold was significantly reduced in the functional dyspepsia group compared with the normal controls. Balloons were also inserted into the duodenal bulbs of 10 normal controls to investigate the effect of efflux of air into the duodenum; the measured parameters were not influenced by inflation and deflation. These results suggest that it is possible to assess visceral perception and gastric tone by measuring changes in intragastric pressure, using gastric stimulation by insufflation during endoscopy.
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Affiliation(s)
- T Suzuki
- Division of Gastroenterology, Tokyo Metropolitan Police Hospital, Tokyo, Japan.
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Ando M, Akiyama M, Okuno D, Hirano M, Ide T, Sawada S, Sasaki Y, Akiyoshi K. Liposome chaperon in cell-free membrane protein synthesis: one-step preparation of KcsA-integrated liposomes and electrophysiological analysis by the planar bilayer method. Biomater Sci 2016; 4:258-64. [DOI: 10.1039/c5bm00285k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chaperoning functions of liposomes were investigated using cell-free membrane protein synthesis.
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Affiliation(s)
- M. Ando
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto
- Japan
| | - M. Akiyama
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto
- Japan
| | - D. Okuno
- Laboratory for Cell Dynamics Observation
- Quantitative Biology Center
- RIKEN
- Osaka 565-0874
- Japan
| | - M. Hirano
- Laboratory for Cell Dynamics Observation
- Quantitative Biology Center
- RIKEN
- Osaka 565-0874
- Japan
| | - T. Ide
- Graduate School of Natural Science and Technology
- Okayama University
- Okayama 700-8530
- Japan
| | - S. Sawada
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto
- Japan
| | - Y. Sasaki
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto
- Japan
| | - K. Akiyoshi
- Department of Polymer Chemistry
- Graduate School of Engineering
- Kyoto University
- Kyoto
- Japan
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Kojima A, Harada S, Hirano M, Hayashi H, Tamogami H, Iwama K, Kajiwara K, Kozai Y, Kodo H. 303P The diagnostic splenectomy: a review of 12 years' experience of the procedure at our institution. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv526.19] [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: 11/13/2022] Open
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29
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Fukuda T, Shirane A, Wada-Hiraike O, Oda K, Tanikawa M, Sakuabashi A, Hirano M, Fu H, Morita Y, Miyamoto Y, Inaba K, Kawana K, Osuga Y, Fujii T. HAND2-mediated proteolysis negatively regulates the function of estrogen receptor α. Mol Med Rep 2015; 12:5538-44. [PMID: 26166202 DOI: 10.3892/mmr.2015.4070] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 06/11/2015] [Indexed: 11/05/2022] Open
Abstract
A previous study demonstrated that the progesterone‑inducible HAND2 gene product is a basic helix‑loop‑helix transcription factor and prevents mitogenic effects of estrogen receptor α (ERα) by inhibiting fibroblast growth factor signalling in mouse uteri. However, whether HAND2 directly affects the transcriptional activation function of ERα remains to be elucidated. In the present study, the physical interaction between HAND2 and ERα was investigating by performing an immunoprecipitation assay and an in vitro pull‑down assay. The results demonstrated that HAND2 and ERα interacted in a ligand‑independent manner. The in vitro pull‑down assays revealed a direct interaction between HAND2 and the amino‑terminus of ERα, termed the activation function‑1 domain. To determine the physiological significance of this interaction, the role of HAND2 as a cofactor of ERα was investigated, which revealed that HAND2 inhibited the ligand‑dependent transcriptional activation function of ERα. This result was further confirmed and the mRNA expression of vascular endothelial growth factor, an ERα‑downstream factor, was decreased by the overexpression of HAND2. This inhibition of ligand‑dependent transcriptional activation function of ERα was possibly attributed to the proteasomic degradation of ERα by HAND2. These results indicate a novel anti‑tumorigenic function of HAND2 in regulating ERα‑dependent gene expression. Considering that HAND2 is commonly hypermethylated and silenced in endometrial cancer, it is hypothesized that HAND2 may serve as a possible tumor suppressor, particularly in uterine tissue.
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Affiliation(s)
- Tomohiko Fukuda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Akira Shirane
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Katsutoshi Oda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Michihiro Tanikawa
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Ayako Sakuabashi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Mana Hirano
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Houju Fu
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Yoshihiro Morita
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Yuichiro Miyamoto
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Kanako Inaba
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Kei Kawana
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Tokyo 113‑8655, Japan
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Sakurabashi A, Wada-Hiraike O, Hirano M, Fu H, Isono W, Fukuda T, Morita Y, Tanikawa M, Miyamoto Y, Oda K, Kawana K, Osuga Y, Fujii T. CCAR2 negatively regulates nuclear receptor LXRα by competing with SIRT1 deacetylase. J Steroid Biochem Mol Biol 2015; 149:80-8. [PMID: 25661920 DOI: 10.1016/j.jsbmb.2015.02.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 01/19/2015] [Accepted: 02/01/2015] [Indexed: 11/17/2022]
Abstract
Liver X receptors (LXRs) monitor endogenous sterol levels to maintain whole-body cholesterol levels and regulate inflammatory responses. Recent studies have demonstrated that LXRs may inhibit cellular proliferation, but the underlying mechanism remains unclear. Cell cycle and apoptosis regulator 2 (CCAR2), previously known as DBC1/KIAA1967, is a transcriptional regulator that regulates cellular proliferation and energy metabolism by inhibiting sirtuin 1 (SIRT1) deacetylase. Based on the findings that CCAR2 regulates several nuclear receptors, including the estrogen receptors and androgen receptor, we aimed to identify the underlying mechanism of CCAR2 regulation of LXRα. We found that CCAR2 formed a complex with LXRα in a ligand-independent manner in HepG2 cells, and in vitro pull-down assays, it revealed a direct interaction between the amino terminus of CCAR2 and the AF-2 domain of LXRα. Thereby, CCAR2 attenuates the ligand-dependent transcriptional activation function of LXRα. RNA interference-mediated depletion of endogenous CCAR2 potentiated the expression of the LXRα target genes ATP-binding cassette transporter A1 and G1, and the abrogation of CCAR2 resulted in decreased cellular proliferation. Moreover, competitive immunoprecipitation studies revealed that the LXRα downregulation involves the inhibition of SIRT1-LXRα complex formation. Therefore, these results clearly indicate a novel mechanism in which CCAR2 may regulate the transcriptional activation function of LXRα due to its specific inhibition of SIRT1 and serve to regulate cellular proliferation.
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Affiliation(s)
- Ayako Sakurabashi
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Osamu Wada-Hiraike
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan.
| | - Mana Hirano
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Houju Fu
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Wataru Isono
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Tomohiko Fukuda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yoshihiro Morita
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Michihiro Tanikawa
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yuichiro Miyamoto
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Katsutoshi Oda
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Kei Kawana
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Yutaka Osuga
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
| | - Tomoyuki Fujii
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
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Suzuki H, Hirano M, Baba S. Cytochemical studies of nuclear DNA and RNA in normal and abnormal keratinizing tissues. Curr Probl Dermatol 2015; 10:127-40. [PMID: 7238088 DOI: 10.1159/000396286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The distribution patterns of nuclear DNA and RNA in normal and abnormal keratinizing tissues of human skin were examined by electron microscopy, using an enzyme digestion technique. We found that the distribution of nucleic acids in the nuclei of epidermal cells during keratinization changes gradually. In the hair cells, particularly in the cells of hair cortex and Henle's layer of inner root sheath, essentially similar findings were observed. On the other hand, the distribution patterns observed in the tumor cells of calcifying epithelioma and the parakeratotic cells of psoriasis were different from each other and different from the distribution patterns of normal keratinizing tissue, hair, and epidermis. It seems that a similar pattern of reorganization of nucleic acids occurs in the nucleic of normal keratinizing cells as the cells keratinize. However, in abnormal tissue, it seems that the reorganization pattern of nucleic acids in the nuclei is different in each case.
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Uchida K, Hoshinaga K, Watarai Y, Goto N, Kusaka M, Sasaki H, Hirano M. Pharmacokinetics of everolimus when combined with cyclosporine in Japanese de novo renal transplant recipients. Transplant Proc 2015; 46:1314-8. [PMID: 24935294 DOI: 10.1016/j.transproceed.2014.01.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2013] [Accepted: 01/16/2014] [Indexed: 12/22/2022]
Abstract
BACKGROUND Currently, there are no published data on pharmacokinetics (PK) of everolimus in combination with cyclosporine in Japanese renal transplant patients. We evaluated the PK of everolimus in Japanese de novo renal transplant patients who received everolimus in combination with cyclosporine. METHODS In this phase 3, multicenter, randomized, open-label study, patients were randomized (1:1) to 1 of the 2 groups: everolimus 1.5 mg (targeted C0 of 3-8 ng/mL) plus reduced-dose cyclosporine or mycophenolate mofetil 2 g/d plus standard-dose cyclosporine. PK assessments for everolimus were performed on day 28 (month 1) in the PK subpopulation. RESULTS A total of 11 patients (7 men), mean age 47.5 ± 11.21 years, were enrolled for PK analysis of everolimus. Starting at 1.5 mg (0.75 mg twice a day), the mean dose over a period of 28 days was 0.705 ± 0.1011 mg. Everolimus mean trough concentration was 4.307 ± 1.2459 ng/mL and mean peak concentration was 13.539 ± 3.5330 ng/mL, which peaked at 1 to 2 hours postdose. The average concentration was 7.558 ± 1.4723 ng/mL, area under the concentration-time curve was 90.70 ± 17.667 ng·h/mL, and peak-trough fluctuation was 122.6%. The PK parameters of everolimus were comparable to those in the earlier phase 3 studies (A2306 and A2307). The mean everolimus trough levels were within the target ranges at all time points ranging from 3.4 to 5.5 ng/mL (everolimus 0.75 mg twice a day, safety population). The majority of patients (>85% from day 7 onward) were maintained within the targeted everolimus trough blood levels (safety population). These data were similar to a non-Japanese study (A2309). CONCLUSIONS The pharmacokinetic characteristics of everolimus in Japanese de novo renal transplant patients did not differ from those previously observed in non-Japanese patients, hence the same dosage of everolimus may be acceptable in Japanese patients.
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Affiliation(s)
- K Uchida
- Department of Organ Transplant Surgery, Aichi Medical University, Nagakute, Aichi, Japan.
| | - K Hoshinaga
- Department of Urology, Fujita Health University School of Medicine, Kutsukake-cho, Toyoake, Aichi, Japan
| | - Y Watarai
- Department of Organ Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Aichi, Japan
| | - N Goto
- Department of Organ Transplant Surgery, Nagoya Daini Red Cross Hospital, Nagoya, Aichi, Japan
| | - M Kusaka
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - H Sasaki
- Department of Urology, Fujita Health University School of Medicine, Toyoake, Aichi, Japan
| | - M Hirano
- Translational Sciences Department, Development Division, Novartis Pharma K.K. 106-8618, Tokyo, Japan
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Fu H, Wada-Hiraike O, Hirano M, Kawamura Y, Sakurabashi A, Shirane A, Morita Y, Isono W, Oishi H, Koga K, Oda K, Kawana K, Yano T, Kurihara H, Osuga Y, Fujii T. SIRT3 positively regulates the expression of folliculogenesis- and luteinization-related genes and progesterone secretion by manipulating oxidative stress in human luteinized granulosa cells. Endocrinology 2014; 155:3079-87. [PMID: 24877629 DOI: 10.1210/en.2014-1025] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
SIRT3 is a member of the sirtuin family and has recently emerged as a vital molecule in controlling the generation of reactive oxygen species (ROS) in oocytes. Appropriate levels of ROS play pivotal roles in human reproductive medicine. The aim of the present study was to investigate SIRT3 expression and analyze the SIRT3-mediated oxidative response in human luteinized granulosa cells (GCs). Human ovarian tissues were subjected to immunohistochemical analysis to localize SIRT3 expression. Hydrogen peroxide and human chorionic gonadotropin were used to analyze the relationship between ROS and SIRT3 by quantitative RT-PCR and Western blotting. Intracellular levels of ROS were investigated by fluorescence after small interfering RNA-mediated knockdown of SIRT3 in human GCs. To uncover the role of SIRT3 in folliculogenesis and luteinization, mRNA levels of related genes and the progesterone concentration were analyzed by quantitative RT-PCR and immunoassays, respectively. We detected the expression of SIRT3 in the GCs of the human ovary. The mRNA levels of SIRT3, catalase, and superoxide dismutase 1 were up-regulated by hydrogen peroxide in both COV434 cells and human GCs and down-regulated by human chorionic gonadotropin. Knockdown of SIRT3 markedly elevated ROS generation in human GCs. In addition, SIRT3 depletion resulted in decreased mRNA expression of aromatase, 17β-hydroxysteroid dehydrogenase 1, steroidogenic acute regulatory protein, cholesterol side-chain cleavage enzyme, and 3β-hydroxysteroid dehydrogenase in GCs and thus resulted in decreased progesterone secretion. These results have the important clinical implication that SIRT3 might play a positive role in the folliculogenesis and luteinization processes in GCs, possibly by sensing and regulating the generation of ROS. Activation of SIRT3 function might help to sustain human reproduction by maintaining GCs as well as oocytes.
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Affiliation(s)
- Houju Fu
- Department of Obstetrics and Gynecology (H.F., O.W.-H., M.H., A.Sa., A.Sh., Y.M., W.I., K.Ko., K.O., K.Ka. Y.O., T.F.) and the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; Department of Physiological Chemistry and Metabolism (Y.K., W.I., H.K.), Graduate School of Medicine, the University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan; Department of Obstetrics and Gynecology (H.O., T.Y.), National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjyuku-ku, Tokyo 162-8655, Japan
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Uehara K, Morishita T, Kubota S, Hirano M, Funase K. P686: A comparison between short and long latency interhemispheric inhibition from the active to resting primary motor cortex during a unilateral muscle contraction. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50780-8] [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: 11/27/2022]
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35
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Hirano M, Kubota S, Morishita T, Uehara K, Funase K. P664: Plasticity in primary motor cortex innervating the ankle flexor in football juggling experts. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50757-2] [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: 11/25/2022]
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36
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Kubota S, Hirano M, Morishita T, Uehara K, Funase K. P314: Excitability changes in spinal reciprocal inhibitory circuit induced by periodical sensory inputs. Clin Neurophysiol 2014. [DOI: 10.1016/s1388-2457(14)50434-8] [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: 11/30/2022]
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37
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Hirano M, Yukawa S. Relationship between mindfulness and anger: Focusing on multidimensionality of mindfulness tendency. Personality and Individual Differences 2014. [DOI: 10.1016/j.paid.2013.07.111] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Nespola A, Straullu S, Bosco G, Carena A, Yanchao J, Poggiolini P, Forghieri F, Yamamoto Y, Hirano M, Sasaki T, Bauwelinck J, Verheyen K. 1306-km 20x124.8-Gb/s PM-64QAM transmission over PSCF with net SEDP 11,300 (b ∙ km)/s/Hz using 1.15 samp/symb DAC. Opt Express 2014; 22:1796-1805. [PMID: 24515188 DOI: 10.1364/oe.22.001796] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We demonstrated the transmission of a Nyquist-WDM signal based on PM-64QAM modulation in an EDFA-only submarine configuration composed of 54.4 km-long fiber spans: 20 channels at 124.8-Gb/s were propagated over 1306 km of low-loss pure-silica-core fiber (PSCF). Thanks to an aggressive digital spectral shaping, we achieved a raw spectral efficiency (SE) of 10.4 b/s/Hz, corresponding to 8.67 b/s/Hz net SE when considering a 20% FEC overhead. Transmitter DACs are operated at a record-low 1.15 samples/symbol, enabled by the insertion of advanced anti-alias filters. The achieved SE-times-distance product was 11,327 (b ∙ km)/(s ∙ Hz), the highest reported so far for PM-64QAM. Combining the experimental results with the performance predictions obtained using an analytical model of nonlinear propagation in uncompensated coherent optical systems (the so-called "GN-model"), we show that PM-64QAM is a realistic option for ultra-high capacity systems in the 1,000 km range, carrying up 40 Tb/s in the C-band.
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Kubota A, Melia M, Ortolano S, Vilchez J, Gamez J, Tanji K, Bonilla E, Palenzuela L, Fernandez-Cadenas I, Pristoupilova A, Garcia-Arumi E, Andreu A, Navarro C, Marti R, Hirano M. P.5.12 A mutation in TNPO3 causes LGMD1F and characteristic nuclear pathology. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.464] [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: 10/26/2022]
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Garone C, Garcia-Diaz B, Emmanuele V, Tadesse S, Akman H, Tanji K, Quinzii C, Hirano M. P17.19 Deoxypyrimidine monophosphates treatment for thymidine kinase 2 deficiency. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.669] [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: 11/26/2022]
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Emmanuele V, Kubota A, Garcia-Diaz B, Garone C, Akman H, Tanji K, Quinzii C, Hirano M. P.5.19 Fhl1 W122S knock-in mice manifest late-onset mild myopathy. Neuromuscul Disord 2013. [DOI: 10.1016/j.nmd.2013.06.471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Yokoyama K, Kawanishi M, Yamada M, Tanaka H, Ito Y, Hirano M, Kuroiwa T. In not only vertebroplasty but also kyphoplasty, the resolution of vertebral deformities depends on vertebral mobility. AJNR Am J Neuroradiol 2013; 34:1474-8. [PMID: 23391839 DOI: 10.3174/ajnr.a3424] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND PURPOSE It has not been clarified whether the postoperative resolution of vertebral deformities achieved by KP are superior to those achieved by VP. We compared the outcomes of KP and VP, taking into account the presence of vertebral mobility, to determine whether the balloon inflation in KP may contribute to postoperative resolution of the vertebral deformities in patients with VCFs. MATERIALS AND METHODS The subjects had 34 vertebral bodies treated by VP, and 43 vertebral bodies treated by KP. In all patients, preoperative dynamic imaging was performed to assess the presence of vertebral mobility. First, the vertebral height restoration and kyphotic change were compared between the VP and KP groups. Then, the patients were further divided into 2 groups on the basis of the presence of vertebral mobility, and they were compared within and between the VP and KP groups in relation to the presence of vertebral mobility. RESULTS Overall, no significant differences were observed in either the vertebral height restoration or kyphotic change between the VP and KP groups (P > .20). Preoperative dynamic imaging identified 19 vertebral bodies each with vertebral mobility in the VP (56%) and KP groups (44%) (P = .21). Within the VP and KP groups, the vertebral height restoration and kyphotic changes were significantly better in patients with vertebral mobility than in those without (P < .01). There were no significant differences between the 2 treatment groups after adjustment for the presence of vertebral mobility (P > .30). CONCLUSIONS In both the VP and KP groups, the vertebral height restoration and kyphotic change largely depended on the preoperative vertebral mobility. The use of the balloon itself contributed little to resolution of the vertebral deformities.
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Affiliation(s)
- K Yokoyama
- Department of Neurosurgery, Takeda General Hospital, Fushimi, Kyoto, Japan.
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Iwamoto S, Isoyama M, Hirano M, Yamaya K, Ito Y, Matsuo I, Totani K. Reconstructed glycan profile for evaluation of operating status of the endoplasmic reticulum glycoprotein quality control. Glycobiology 2012; 23:121-31. [DOI: 10.1093/glycob/cws130] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Shirane A, Wada-Hiraike O, Tanikawa M, Seiki T, Hiraike H, Miyamoto Y, Sone K, Hirano M, Oishi H, Oda K, Kawana K, Nakagawa S, Osuga Y, Fujii T, Yano T, Kozuma S, Taketani Y. Regulation of SIRT1 determines initial step of endometrial receptivity by controlling E-cadherin expression. Biochem Biophys Res Commun 2012; 424:604-10. [PMID: 22780949 DOI: 10.1016/j.bbrc.2012.06.160] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 06/29/2012] [Indexed: 01/24/2023]
Abstract
Sirtuin 1 (SIRT1), originally found as a class III histone deacetylase, is a principal modulator of pathways downstream of calorie restriction, and the activation of SIRT1 ameliorates glucose homeostasis and insulin sensitivity. We examined the role of SIRT1 in the regulation of uterine receptivity using Ishikawa and RL95-2 endometrial carcinoma cell lines. Exogenous expression of SIRT1 significantly enhanced E-cadherin expression, while small interfering RNA-mediated depletion of endogenous SIRT1 resulted in a significant reduction of E-cadherin expression. A SIRT1 activator resveratrol elevated E-cadherin expression in a dose dependent manner, while SIRT1 repressors nicotinamide and sirtinol exhibited a dose dependent reduction of E-cadherin expression. We also showed that both forced expression of SIRT1 and activation of SIRT1 promote E-cadherin-driven reporter gene constructs, and SIRT1 is localized at E-cadherin promoter containing E-box elements in Ishikawa cells. Using an in vitro model of embryo implantation, we demonstrate that exogenous expression of SIRT1 and stimulation of SIRT1 activity resulted in the Ishikawa cell line becoming receptive to JAR cell spheroid attachment. Furthermore, resveratrol enhanced E-cadherin and Glycodelin protein expression at sites of intercellular contact, suggesting an additive role of resveratrol in promoting implantation. The initial step of human reproduction depends on the capacity of an embryo to attach and implant into the endometrial wall, and these results revealed the novel mechanism that activation and increased expression of SIRT1 play an important role in uterine receptivity.
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Affiliation(s)
- Akira Shirane
- Department of Obstetrics and Gynecology, Graduate School of Medicine, The University of Tokyo, Hongo 7-3-1 Bunkyo-ku, Tokyo 113-8655, Japan
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Yokoyama K, Kawanishi M, Yamada M, Tanaka H, Ito Y, Hirano M, Kuroiwa T. Validity of intervertebral bone cement infusion for painful vertebral compression fractures based on the presence of vertebral mobility. AJNR Am J Neuroradiol 2012; 34:228-32. [PMID: 22743643 DOI: 10.3174/ajnr.a3160] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND PURPOSE It is uncertain whether analgesic effects of vertebroplasty in patients with painful VCF are actually attributable to intervertebral cement infusion. This study aims to assess the validity of cement infusion performed for pain relief based on the presence or absence of pseudoarthrosis. MATERIALS AND METHODS We compared therapeutic effects between PVP and vertebral perforation without bone cement infusion in patients with painful VCF. The subjects were 64 patients undergoing PVP (PVP group) and 67 undergoing vertebral perforation (perforation group). In all patients, preoperative dynamic radiography was performed to assess the presence of vertebral mobility. Patients were classified into 2 groups, those with and those without vertebral mobility, and changes in VAS and ADL scores before and after surgery were compared between the PVP and perforation groups. RESULTS Regarding patients with vertebral mobility, VAS improved during the 3 months immediately after surgery in the PVP group compared with the perforation group (P < .05). Although no significant difference in postoperative ADL scores was observed between the 2 treatment groups, the scores 3 months after surgery were better in the PVP group than in the perforation group. Meanwhile, in the subgroup of patients without vertebral mobility, both treatments produced marked pain relief, but the difference was not significant (P > .05). Moreover, there was no difference in ADL scores between the 2 treatment groups. CONCLUSIONS Intervertebral cement infusion exerts analgesic effects in patients with VCF with pseudoarthrosis. However, in those without vertebral mobility, the analgesic effects of vertebroplasty are the same regardless of bone cement infusion.
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Affiliation(s)
- K Yokoyama
- Department of Neurosurgery, Takeda General Hospital, Fushimi, Kyoto, Japan.
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Emmanuele V, Silvers D, Sotiriou E, Tanji K, DiMauro S, Hirano M. MERRF and Kearns-Sayre Overlap Syndrome Due to the Mitochondrial DNA M.3291T>C Mutation (P07.209). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p07.209] [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: 11/15/2022] Open
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Garone C, Rubio JC, Calvo S, Naini A, Tanji K, DiMauro S, Mootha V, Hirano M. New MPV17 Mutations Associated with Multiple Deletions in Skeletal Muscle (S55.002). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.s55.002] [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: 11/15/2022] Open
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Quinzii C, Barros M, Sanna-Cherchi S, Emmanuele V, Lopez Garcia B, Akman A, Horvath R, Ferreiro-Barros C, El Gharably N, De Vivo D, Shokr A, Hirano M. Severe Infantile Encephaloneuromyopathy and Defective Mitochondrial Translation Due to a New Molecular Defect (P05.135). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p05.135] [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: 11/15/2022] Open
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Garone C, Calvo S, Emmanuele V, Akman OH, Kaplan P, Krishna S, Mootha V, DiMauro S, Hirano M. MitoExome Sequencing Reveals a Mutation in the Mitochondrial MRPL51 Gene Causing Infantile Encephalopathy (P05.139). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p05.139] [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: 11/15/2022] Open
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Emmanuele V, Silvers D, Sotiriou E, Tanji K, DiMauro S, Hirano M. MERRF and Kearns-Sayre Overlap Syndrome Due to the Mitochondrial DNA M.3291T>C Mutation (IN7-1.008). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.in7-1.008] [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: 11/15/2022] Open
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