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Sugita K, Altunbulakli C, Morita H, Sugita A, Kubo T, Kimura R, Goto H, Yamamoto O, Rückert B, Akdis M, Akdis CA. Human type 2 innate lymphoid cells disrupt skin keratinocyte tight junction barrier by IL-13. Allergy 2019; 74:2534-2537. [PMID: 31166013 DOI: 10.1111/all.13935] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Kazunari Sugita
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine Tottori University Yonago Japan
| | - Can Altunbulakli
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
| | - Hideaki Morita
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
- Department of Allergy and Clinical Immunology National Research Institute for Child Health and Development Tokyo Japan
| | - Atsuko Sugita
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
| | - Terufumi Kubo
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
| | - Ryoko Kimura
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine Tottori University Yonago Japan
| | - Hiroyuki Goto
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine Tottori University Yonago Japan
| | - Osamu Yamamoto
- Division of Dermatology, Department of Medicine of Sensory and Motor Organs, Faculty of Medicine Tottori University Yonago Japan
| | - Beate Rückert
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
| | - Cezmi A. Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
- Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
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Mizuochi M, Chiba N, Yamaguchi J, Matsuzaki M, Mawatari T, Nomura Y, Sugita A, Sakurai A, Kinoshita K. MON-PO616: The Significance of the Conut Score for Measurement in Trauma Patients. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32449-5] [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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Waza M, Maeda K, Katsuragawa C, Sugita A, Tanaka R, Ohtsuka A, Matsui T, Kitagawa K, Kishimoto T, Fukui H, Kawai K, Yamamoto M, Isono M. Comprehensive Tool to Assess Oral Feeding Support for Functional Recovery in Post-acute Rehabilitation. J Am Med Dir Assoc 2019; 20:426-431. [DOI: 10.1016/j.jamda.2018.10.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 10/09/2018] [Accepted: 10/17/2018] [Indexed: 01/07/2023]
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Hamaguchi T, Shimada Y, Mizusawa J, Sato T, Kato T, Takahashi K, Sugihara K, Saida Y, Ike H, Hase K, Masaki T, Shiozawa M, Sugita A, Nishimura J, Munakata Y, Ikeda S, Nakamura K, Fukuda H. Randomized phase III study of adjuvant chemotherapy with S-1 versus capecitabine in patients with stage III colorectal cancer: Updated results of Japan Clinical Oncology Group study (JCOG0910). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx393.012] [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: 11/14/2022] Open
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5
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Matsuda Y, Kubo T, Fujino Y, Matsuda S, Wada F, Sugita A. Relationship Between Depressive State and Treatment Characteristics of Acute Cervical Spinal Cord Injury in Japan. J Epidemiol 2015; 26:30-5. [PMID: 26567604 PMCID: PMC4690738 DOI: 10.2188/jea.je20140233] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background Few studies have assessed whether treatment of acute cervical spinal cord injury (SCI) patients contributes to depression. Methods Using an administrative database, we assessed patients for whom the diagnosis was unspecified injuries of cervical spinal cord (International Classification of Diseases and Injuries-10th (ICD-10) code; S14.1). We categorized patients with codes for depressive episode (ICD-10 code; F32) or recurrent depressive disorder (F33), or those prescribed antidepressants (tricyclic, tetracyclic, Selective Serotonin Reuptake Inhibitors, Serotonin Noradrenaline Reuptake Inhibitors, Trazodone, Sulpiride, or Mirtazapine) as having a depressive state. We compared the rate of each acute treatment between the depressive state group and the non-depressive state group using chi-square tests, and a multiple logistic regression model was used to identify the association between the acute treatment and depressive state. Results There were 151 patients who were judged to be in a depressive state, and the other 2115 patients were categorized into the non-depressive state group. Intervention of intravenous anesthesia, tracheostomy, artificial respiration, and gastrostomy had a significant positive correlation with depressive state. Multiple logistic regression analysis showed that tracheostomy (odds ratio [OR] 2.18; 95% confidence interval [CI], 1.09–4.38) and artificial respiration (OR 2.28; 95% CI, 1.32–3.93) were significantly associated with depressive state, and men had a 36% reduction in the risk of depressive state compared with women (OR 0.64; 95% CI, 0.44–0.94), whereas age, wound-treatment, all of the orthopedic procedures, intravenous anesthesia, and gastrostomy were not associated with depressive state. Conclusions These findings suggest that tracheostomy, artificial respiration and female gender in the acute phase after cervical SCI might be associated with the development of depression.
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Affiliation(s)
- Yasufumi Matsuda
- Department of Preventive Medicine and Community Health, School of Medicine, University of Occupational and Environmental Health
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Kato N, Iwase A, Sugita A, Goto M, Nakahara T, Nakamura T, Kondo M, Osuka S, Mori M, Saito A, Kikkawa F. Anti-Müllerian hormone as a possible predictor of fecundability in subfertile women over 38 years: a retrospective cohort study. Gynecol Endocrinol 2015; 31:22-5. [PMID: 25030844 DOI: 10.3109/09513590.2014.943720] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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] [Indexed: 11/13/2022] Open
Abstract
Anti-Müllerian hormone (AMH) is a relatively novel method for examining the ovarian reserve that reflects female reproductive function. In the era in which the number of women delaying attempts to conceive has increased, a good predictor for long-term fecundability has been explored. We performed the retrospective cohort study to investigate whether initial serum AMH levels are useful for predicting long-term fertility during infertility treatments. We recruited 149 women in the retrospective cohort, and 52 women were gravid during the follow-up period. According to the multiple logistic analyses, only age was found to have a significant correlation with pregnancy success in all women. In women ≥38 years, significantly higher serum AMH levels were detected in the pregnant group (median = 2.83 ng/mL, range = 1.11-6.29 ng/mL) than the non-pregnant group (median = 1.22 ng/mL, range = 0-9.46 ng/mL; p = 0.015). None of the women with serum AMH levels <0.7 ng/mL were pregnant during treatment. AMH may be used to identify poor pregnancy prospects in women who are above 38 years.
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Affiliation(s)
- Nao Kato
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine , Nagoya , Japan and
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Iwase A, Sugita A, Hirokawa W, Goto M, Yamamoto E, Takikawa S, Nakahara T, Nakamura T, Kondo M, Kikkawa F. Anti-Müllerian hormone as a marker of ovarian reserve following chemotherapy in patients with gestational trophoblastic neoplasia. Eur J Obstet Gynecol Reprod Biol 2013; 167:194-8. [DOI: 10.1016/j.ejogrb.2012.11.021] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 11/05/2012] [Accepted: 11/30/2012] [Indexed: 12/25/2022]
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Iwase A, Sugita A, Hirokawa W, Goto M, Nakahara T, Kajiyama H, Shibata K, Nagatomo Y, Kikkawa F. Anti-Müllerian hormone as a marker of ovarian reserve in patients with ovarian malignancies who have undergone fertility-preserving surgery and chemotherapy. Gynecol Endocrinol 2013; 29:357-60. [PMID: 23305483 DOI: 10.3109/09513590.2012.743008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
With proper and careful selection of patients, fertility-preserving surgery may be feasible in patients with ovarian malignancies. However, the loss of follicles by oophorectomy and chemotherapy results in decreased ovarian reserve, which consecutively affects reproductive capacity. We evaluated postoperative levels of serum anti-Müllerian hormone (AMH) in women with ovarian malignancies to assess the impact of the fertility-preserving surgery with or without the administration of chemotherapy on ovarian reserve. In 13 patients who underwent the fertility-preserving surgery with (n = 9) or without (n = 4) the administration of chemotherapy, serum AMH levels were measured and compared with serum AMH levels measured in patients undergone cystectomy for benign ovarian tumors as a control. We found that the mean AMH level in the treatment group measured 0.9 ng/mL, which was significantly lower than that measured in the control group (4.70 ± 3.77 ng/mL). The possibility of decreased ovarian reserve occurring in patients with ovarian malignancies following treatment with fertility-preserving surgery with or without the administration of chemotherapy should be considered for fertility planning.
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Affiliation(s)
- Akira Iwase
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan.
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Sugita A, Suto K, Ono A, Inami W, Kawata Y. Second harmonic generation in NLO polymers excited by Surface Plasmon enhanced electric field induced by femtosecond optical pulses. EPJ Web of Conferences 2013. [DOI: 10.1051/epjconf/20134109008] [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: 11/14/2022] Open
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10
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Iwase A, Sugita A, Goto M, Nakahara T, Nakamura T, Kikkawa F. One-year follow-up of serum anti-müllerian hormone levels in patients with laparoscopic cystectomy for endometiomas. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.407] [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: 11/28/2022]
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Mikami B, Maki Y, Hashizume R, Mizutani K, Takahashi N, Matsubara H, Sugita A, Sato K, Yamaguchi S. Crystal structure of enzyme–substrate complex of protein-glutaminase obtained by the mutant of pro-enzyme. Acta Crystallogr A 2012. [DOI: 10.1107/s0108767312096766] [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: 11/10/2022] Open
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Umene W, Yoshimura R, Hori H, Nakano H, Sugita A, Shimono M, Takano K, Shiota N, Tomoda Y, Korogi Y, Nakamura J. Blood levels of catecholamine metabolites and brain-derived neurotrophic factor in a case of Sydenham's chorea. World J Biol Psychiatry 2010; 10:248-51. [PMID: 17965987 DOI: 10.1080/15622970701714354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
We report a case of Sydenham's chorea with neuropsychiatric symptoms who was successfully treated with low-dose risperidone. We also longitudinally investigated serum BDNF levels and plasma levels of catecholamine metabolite in the patient. Serum BDNF levels were increased and plasma levels of HVA and MHPG were decreased according to the recovery from the active phase of the disease. These results suggest that dysfunctions of catecholaminergic neurons and neurotrophic factors might exist in Sydenham's chorea, and the decreasing catecholamine activities in response to risperidone might be associated with the improvement of the disease.
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Nishikawa H, Nakashiro K, Sumida T, Sugita A, Hamakawa H. Mandibular osteoblastic metastasis of poorly differentiated carcinoma of the thyroid gland. Int J Oral Maxillofac Surg 2009; 39:301-4. [PMID: 19942407 DOI: 10.1016/j.ijom.2009.10.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2009] [Revised: 08/10/2009] [Accepted: 10/26/2009] [Indexed: 02/08/2023]
Abstract
Metastasis of malignant tumors to the oral cavity is rare. The authors report a case of thyroid carcinoma with mandibular osteoblastic metastasis. An 83-year-old female presented with lower jaw swelling and pain. An elastic hard subcutaneous mass was observed in the median mandible. X-ray images confirmed a tumor lesion with periosteal reaction spreading radially from the mandible. A biopsy revealed nests of large, polygonal tumor cells growing in a supporting fibrovascular framework. The patient's anamnesis included thyroid carcinoma with lung metastasis, 2 years ago, treated by total enucleation of the thyroid and excision of the superior lobe of the left lung. Biopsy, primary and metastatic tumor samples all tested positive for thyroglobulin, suggesting a thyroid follicular epithelial origin. Mandibular metastasis of poorly differentiated carcinoma of the thyroid gland was diagnosed. Consent for further treatment was not obtained. The patient died 1 year and 7 months later.
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Affiliation(s)
- H Nishikawa
- Department of Oral and Maxillofacial Surgery, Ehime University Graduate School of Medicine
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Kobayashi T, Okamoto S, Hisamatsu T, Kamada N, Chinen H, Saito R, Kitazume MT, Nakazawa A, Sugita A, Koganei K, Isobe K, Hibi T. IL23 differentially regulates the Th1/Th17 balance in ulcerative colitis and Crohn's disease. Gut 2008; 57:1682-9. [PMID: 18653729 DOI: 10.1136/gut.2007.135053] [Citation(s) in RCA: 417] [Impact Index Per Article: 26.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND A novel T helper (Th) cell lineage, Th17, that exclusively produces the proinflammatory cytokine interleukin 17 (IL17) has been reported to play important roles in various inflammatory diseases. IL23 is also focused upon for its potential to promote Th17. Here, the roles of the IL23/IL17 axis in inflammatory bowel diseases such as ulcerative colitis (UC) and Crohn's disease (CD) were investigated. METHODS Mucosal samples were obtained from surgically resected specimens (controls, n = 12; UC, n = 17; CD, n = 22). IL17 production by isolated peripheral blood (PB) and lamina propria (LP) CD4(+) cells was examined. Quantitative PCR amplification was performed to determine the mRNA expression levels of IL17, interferon gamma (IFNgamma), IL23 receptor (IL23R) and retinoic acid-related orphan receptor gamma (RORC) in LP CD4(+) cells, and IL12 family members, such as IL12p40, IL12p35 and IL23p19, in whole mucosal specimens. The effects of exogenous IL23 on IL17 production by LP CD4(+) cells were also examined. RESULTS IL17 production was higher in LP CD4(+) cells than in PB. Significant IL17 mRNA upregulation in LP CD4(+) cells was found in UC, while IFNgamma was increased in CD. IL23R and RORC were upregulated in LP CD4(+) cells isolated from both UC and CD. IL17 production was significantly increased by IL23 in LP CD4(+) cells from UC but not CD. Upregulated IL23p19 mRNA expression was correlated with IL17 in UC and IFNgamma in CD. CONCLUSIONS IL23 may play important roles in controlling the differential Th1/Th17 balance in both UC and CD, although Th17 cells may exist in both diseases.
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Affiliation(s)
- T Kobayashi
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo, Japan
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Abstract
We report on the development of highly dispersive mirrors for chirped-pulse oscillators (CPO) and amplifiers (CPA). In this proof-of-concept study, we demonstrate the usability of highly dispersive multilayer mirrors for high-energy femtosecond oscillators, namely for i) a chirped-pulse Ti:Sa oscillator and ii) an Yb:YAG disk oscillator. In both cases a group delay dispersion (GDD) of the order of 2x10(4) fs(2) was introduced, accompanied with an overall transmission loss as low as approximately 2 per cent. This unprecedented combination of high dispersion and low loss over a sizeable bandwidth with multilayer structures opens the prospects for femtosecond CPA systems equipped with a compact, alignment-insensitive all-mirror compressors providing compensation of GDD as well as higher-order dispersion.
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Affiliation(s)
- V Pervak
- Ludwig-Maximilians-Universitaet Muenchen, Am Coulombwall 1, D-85748 Garching, Germany.
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Yoshimura R, Kakihara S, Umene-Nakano W, Sugita A, Hori H, Ueda N, Nakamura J. Acute risperidone treatment did not increase daily cigarette consumption or plasma levels of cotinine and caffeine: a pilot study. Hum Psychopharmacol 2008; 23:327-32. [PMID: 18273830 DOI: 10.1002/hup.928] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Excessive cigarette smoking and caffeine intake are often seen in schizophrenic patients being treated with antipsychotic drugs, particularly typical antipsychotic drugs. Using nicotine and caffeine sometimes influences psychotic symptoms in these patients. Clozapine is the only antipsychotic drug reported to reduce the amount of cigarette smoking, however, still remains controversial of its efficacy. In the present study, we examined the effect of acute risperidone treatment on the amount of cigarette smoking and plasma levels of cotinine and caffeine in schizophrenic patients. Treatment with risperidone for 4 weeks did not increase daily cigarette consumption or plasma levels of cotinine and caffeine. The results suggest that acute risperidone treatment does not promote the intake of nicotine and caffeine at least by 4 weeks in schizophrenic patients.
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Affiliation(s)
- Reiji Yoshimura
- Department of Psychiatry, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatansihi-ku, Kitakyushu, Fukuoka, Japan.
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Abstract
Two case reports of patients suffering from burning mouth syndrome (BMS), a type of somatoform disorder, who were treated with olanzapine are discussed. One case was a 54-year-old female with BMS who failed to respond to milnacipran treatment. Olanzapine (2.5 mg/day) brought about dramatic improvement in the patient's symptoms, and thereafter milnacipran withdrawal further eliminated her symptoms. The second case was a 51-year-old male with BMS who failed to respond to paroxetine treatment. Olanzapine (2.5 mg/day) was added to the treatment regimen and increased to 5.0 mg/day the following week. The patient noted a reduction in symptoms and continued to live normally thereafter without experiencing severe symptoms. These findings suggest that olanzapine may be useful in the treatment of BMS.
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Affiliation(s)
- Nobuhisa Ueda
- Department of Psychiatry, School of Medicine, University of Occupational and Environmental Health, Kitakyusyu, Japan.
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Mitoma M, Yoshimura R, Sugita A, Umene W, Hori H, Nakano H, Ueda N, Nakamura J. Stress at work alters serum brain-derived neurotrophic factor (BDNF) levels and plasma 3-methoxy-4-hydroxyphenylglycol (MHPG) levels in healthy volunteers: BDNF and MHPG as possible biological markers of mental stress? Prog Neuropsychopharmacol Biol Psychiatry 2008; 32:679-85. [PMID: 18160197 DOI: 10.1016/j.pnpbp.2007.11.011] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2007] [Revised: 11/09/2007] [Accepted: 11/09/2007] [Indexed: 02/04/2023]
Abstract
There is growing evidence that blood levels of brain-derived neurotrophic factor (BDNF) and catecholamine, and cytokines are related to not only to depressive, suicidal, and anxious states but also to depression-associated personality traits. Psychological job stress is well known to lead to symptoms of depression and anxiety. In the present study, we examined effects of psychological job stress on serum levels of BDNF and plasma levels of catecholamine metabolites, and cytokines in healthy volunteers (n=106, male/female=42/64, age=36+/-12 yr) working in a hospital setting. The values (mean+/-SD) of scores for stress items in the Stress and Arousal Check List (s-SACL), plasma MHPG levels, and, serum BDNF levels in all participants were 7.2+/-3.3, 5.2+/-3.4 ng/mL, and 23.3+/-14.7 ng/mL, respectively. A negative correlation was found between scores for s-SACL and serum BDNF levels (rho=-0.211, p=0.022). A positive correlation was also found between scores on the s-SACL and plasma levels of 3-methoxy-4-hydroxyphenylglycol (MHPG) (rho=0.416, p=0.01), but not homovanillic acid (HVA). No relationship was found between s-SACL scores and plasma levels of interleukin-6 (IL-6) or tumor necrosis factor alpha (TNFalpha). These results suggest that serum BDNF levels and plasma MHPG levels might be biological markers reflective of psychological job stress in hospital employees.
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Affiliation(s)
- Masae Mitoma
- Department of Psychiatry, University of Occupational and Environmental Health, Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka 8078555, Japan
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Nakayama T, Fukuda H, Kamikawa T, Sakamoto Y, Sugita A, Kawasaki M, Amano T, Sato H, Sakaki S, Morino I, Inoue G. Effective interaction energy of water dimer at room temperature: An experimental and theoretical study. J Chem Phys 2007; 127:134302. [DOI: 10.1063/1.2773726] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Miyamoto K, Yoshimura R, Ueda N, Sugita A, Umene W, Hori H, Mitoma M, Nakamura J. Effects of acute paroxetine treatment on the consumption of cigarette smoking and caffeine in depressed patients. Hum Psychopharmacol 2007; 22:483-90. [PMID: 17726723 DOI: 10.1002/hup.871] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In the present study, we examined the effects of acute treatment with paroxetine on the consumption of cigarette smoking and caffeine in 65 patients who met the DSM-IV criteria for major depressive disorder (M/F: 28/37, age: 48 +/- 15 years). Plasma levels of cotinine or caffeine were analysed using high-performance liquid chromatography (HPLC). The amount of cigarette smoking and plasma levels of cotinine, but not caffeine, decreased 4 weeks after paroxetine treatment. There was no difference between smokers and nonsmokers with respect to their response to paroxetine treatment. In addition, plasma 3-methoxy-4-hydroxyphenylglycol (MHPG) levels in responders to paroxetine treatment was higher than those in nonresponders, and there was a negative correlation between the changes in plasma MHPG levels and the changes in Hamilton rating scale for depression (Ham-D) scores before and 4 weeks after paroxetine administration. These results suggest that paroxetine has the potential to reduce the amount of cigarette smoking in depressed smokers, and we reconfirmed our previous results that depressed patients with higher plasma MHPG levels had better response to paroxetine treatment than those with lower plasma MHPG levels using larger depressed samples.
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Affiliation(s)
- Kyoko Miyamoto
- Department of Psychiatry, University of Occupational and Environmental Health, Iseigaoka, Kitakyushu, Fukuoka, Japan
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Yoshimura R, Hori H, Sugita A, Ueda N, Kakihara S, Umene W, Nakano Y, Shinkai K, Mitoma M, Ohta M, Shinkai T, Nakamura J. Treatment with risperidone for 4 weeks increased plasma 3-methoxy-4-hydroxypnenylglycol (MHPG) levels, but did not alter plasma brain-derived neurotrophic factor (BDNF) levels in schizophrenic patients. Prog Neuropsychopharmacol Biol Psychiatry 2007; 31:1072-7. [PMID: 17459549 DOI: 10.1016/j.pnpbp.2007.03.010] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [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] [Received: 12/21/2006] [Revised: 03/15/2007] [Accepted: 03/15/2007] [Indexed: 01/13/2023]
Abstract
In the present study, we investigated the effects of risperidone treatment for 4 weeks on plasma levels of 3-methoxy-4-hydroxyphenylglycol (MHPG) and brain-derived neurotrophic factor (BDNF) in 89 schizophrenic patients. We also compared the plasma levels of BDNF and MHPG between the schizophrenic group and 103 sex-and age-matched normal controls. In addition, we investigated the effects of two SNPs of the noradrenaline transporter (NAT) gene on plasma levels of MHPG, BDNF, and clinical improvement. The mean dose of risperidone was 3.8+/-1.4 mg/day. We demonstrated that treatment with risperidone increased plasma MHPG levels, and this increase was associated with an improvement of the negative symptoms of schizophrenia. In contrast, plasma BDNF did not change after 4 weeks of risperidone treatment, and the two SNPs in NAT did not influence the response to risperidone treatment or plasma MHPG and BDNF levels. These results suggest that the enhancement of noradrenergic neurons by risperidone, which occurs independently of the two SNPs of NAT, plays a role in the clinical efficacy of the drug.
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Affiliation(s)
- Reiji Yoshimura
- Department of Psychiatry, University of Occupational and Environmental Health 1-1Iseigaoka, Yahatanishiku, Kitakyushu, Japan.
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Yoshimura R, Mitoma M, Sugita A, Hori H, Okamoto T, Umene W, Ueda N, Nakamura J. Effects of paroxetine or milnacipran on serum brain-derived neurotrophic factor in depressed patients. Prog Neuropsychopharmacol Biol Psychiatry 2007; 31:1034-7. [PMID: 17459550 DOI: 10.1016/j.pnpbp.2007.03.001] [Citation(s) in RCA: 135] [Impact Index Per Article: 7.9] [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] [Received: 11/21/2006] [Revised: 01/21/2007] [Accepted: 03/01/2007] [Indexed: 12/14/2022]
Abstract
Brain-derived neurotrophic factor (BDNF) is an important member of the neurotrophin family of growth factors, abundant in the brain and periphery. Researchers have reported that serum BDNF levels in drug-free depressed patients are lower than those of healthy controls, and have proposed that these low levels might reflect a failure of neuronal plasticity in depression. In the present study, we investigated the effects of paroxetine, an SSRI, and milnacipran, an SNRI, on serum BDNF levels in depressed patients. Serum levels of BDNF were measured by ELISA before, 4 weeks, and 8 weeks after the start of treatment with antidepressants. Forty-two patients were randomly administered paroxetine (21 cases) or milnacipran (21 cases). A negative correlation was found between serum BDNF levels and baseline Ham-D scores. The response and remission rates for each drug were not significantly different. Serum BDNF levels in responders were significantly increased 2.6- and 1.8-fold 8 weeks after treatment with paroxetine or milnacipran, respectively. These results suggest that both drugs improve the depressive state by increasing BDNF levels.
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Affiliation(s)
- Reiji Yoshimura
- Department of Psychiatry, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, Fukuoka, Japan.
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23
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Hatakeyama S, Nagashima S, Imai N, Takahashi K, Ishihara J, Sugita A, Nihei T, Saito H, Takahashi F, Kubodera N. Synthesis and biological evaluation of a 3-positon epimer of 1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)vitamin D3 (ED-71). J Steroid Biochem Mol Biol 2007; 103:222-6. [PMID: 17207991 DOI: 10.1016/j.jsbmb.2006.12.025] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
1alpha,25-Dihydroxy-2beta-(3-hydroxypropoxy)vitamin D(3) (ED-71), an analog of active vitamin D(3), 1alpha,25-dihydroxyvitamin D(3) [1,25(OH)(2)D(3)], possesses a hydroxypropoxy substituent at the 2beta-position of 1,25(OH)(2)D(3). ED-71 has potent biological effects on bone and is currently under phase III clinical studies for bone fracture prevention. It is well-known that the synthesis and secretion of parathyroid hormone (PTH) is regulated by 1,25(OH)(2)D(3). Interestingly, during clinical development of ED-71, serum intact PTH in osteoporotic patients did not change significantly upon treatment with ED-71. The reason remains unclear, however. Brown et al. reported that 3-epi-1,25(OH)(2)D(3), an epimer of 1,25(OH)(2)D(3) at the 3-position, shows equipotent and prolonged activity compared to 1,25(OH)(2)D(3) at suppressing PTH secretion. Since ED-71 has a bulky hydroxypropoxy substituent at the 2-position, epimerization at the adjacent and sterically hindered 3-position might be prevented, which may account for its weak potency in PTH suppression observed in clinical studies. We have significant interest in ED-71 epimerization at the 3-position and the biological potency of 3-epi-ED-71 in suppressing PTH secretion. In the present studies, synthesis of 3-epi-ED-71 and investigations of in vitro suppression of PTH using bovine parathyroid cells are described. The inhibitory potency of vitamin D(3) analogs were found to be 1,25(OH)(2)D(3)>ED-71> or =3-epi-1,25(OH)(2)D(3)>>3-epi-ED-71. ED-71 and 3-epi-ED-71 showed weak activity towards PTH suppression in our assays.
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Affiliation(s)
- Susumi Hatakeyama
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8521, Japan
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24
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Hatakeyama S, Nagashima S, Imai N, Takahashi K, Ishihara J, Sugita A, Nihei T, Saito H, Takahashi F, Kubodera N. Synthesis and evaluation of a 3-position diastereomer of 1α,25-dihydroxy-2β-(3-hydroxypropoxy)vitamin D3 (ED-71). Bioorg Med Chem 2006; 14:8050-6. [PMID: 16908172 DOI: 10.1016/j.bmc.2006.07.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2006] [Revised: 07/20/2006] [Accepted: 07/21/2006] [Indexed: 11/19/2022]
Abstract
A 3-position diastereomer of 1alpha,25-dihydroxy-2beta-(3-hydroxypropoxy)vitamin D3 (ED-71, 2), 3-epi-ED-71 (4), was synthesized by the convergent method coupling the A-ring fragment (5) with the C/D-ring fragment (6). As the results of preliminary in vitro biological evaluation of 3-epi-ED-71 (4), the inhibition of parathyroid hormone secretion in bovine parathyroid cells and binding affinity to human recombinant vitamin D receptor and to human vitamin D binding protein in comparison with ED-71 (2), 1alpha,25-dihydroxyvitamin D3 (1,25(OH)2D3, 1), and 3-epi-1,25(OH)2D3 (3) are described.
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Affiliation(s)
- Susumi Hatakeyama
- Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki 852-8521, Japan
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25
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Takeda K, Kominato K, Sugita A, Iwasaki Y, Shimazaki M, Shimizu M. Isolation and identification of 2alpha,25-dihydroxyvitamin D3, a new metabolite from Pseudonocardia autotrophica 100U-19 cells incubated with Vitamin D3. Steroids 2006; 71:736-44. [PMID: 16784761 DOI: 10.1016/j.steroids.2006.05.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2006] [Revised: 05/01/2006] [Accepted: 05/03/2006] [Indexed: 10/24/2022]
Abstract
Pseudonocardia autotrophica converted Vitamin D(3) to 25-hydroxyvitamin D(3) and 1alpha,25-dihydroxyvitamin D(3). The hydroxylation of Vitamin D(3) with P. autotrophica was enhanced by the addition of cyclodextrin. In this microbial hydroxylation, a new Vitamin D(3) metabolite was observed in the reaction mixture of P. autotrophica and Vitamin D(3), and was isolated in a pure form by several steps of chromatography. The structure of the new metabolite was determined to be 2alpha,25-dihydroxyvitamin D(3) by UV, NMR and mass spectroscopic analyses. Biological evaluation of the new metabolite was conducted by means of several experiments.
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Affiliation(s)
- Koji Takeda
- Bioresource Laboratories, Mercian Corporation, Iwata, Shizuoka, Japan.
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26
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Shimizu K, Kawase A, Haneishi T, Kato Y, Kinoshita K, Ohmori M, Furuta Y, Emura T, Kato N, Mitsui T, Yamaguchi K, Morita K, Sekiguchi N, Yamamoto T, Matsushita T, Shimaoka S, Sugita A, Morikawa K. Design and evaluation of new antipsoriatic antedrug candidates having 16-en-22-oxa-vitamin D3 structures. Bioorg Med Chem Lett 2006; 16:3323-9. [PMID: 16630723 DOI: 10.1016/j.bmcl.2006.03.014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2005] [Revised: 02/20/2006] [Accepted: 03/07/2006] [Indexed: 12/01/2022]
Abstract
Design, synthesis, and in vitro and in vivo evaluation of a series of antipsoriatic antedrugs having 16-en-22-oxa-vitamin D3 are described. Among the seven compounds examined, two are promising: ester 5c and amide 5f, both of which exhibit greater potent antiproliferation activity with lessened calcemic activity than the presently prescribed maxacalcitol (2).
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Affiliation(s)
- Kazuki Shimizu
- Fuji Gotemba Research Laboratories, Chugai Pharmaceutical Co., Ltd, 1-135 Komakado, Gotemba, Shizuoka 412-8513, Japan.
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27
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Takiguchi K, Okamoto K, Sugita A. Arrayed-waveguide grating with uniform loss properties over the entire range of wavelength channels. Opt Lett 2006; 31:459-61. [PMID: 16496886 DOI: 10.1364/ol.31.000459] [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] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
We propose an arrayed-waveguide grating that shows uniform loss properties over the entire range of wavelength channels by combining two light waves with adjacent diffraction orders at its output. We applied this configuration to an arrayed-waveguide grating with 32 channels and a 50 GHz spacing and were able to reduce the deviations in loss to less than 1.0 and 1.8 dB over one and three free spectral ranges, respectively.
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Affiliation(s)
- K Takiguchi
- NTT Photonics Laboratories, NTT Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa 243-0198, Japan.
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28
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Takasu H, Sugita A, Uchiyama Y, Katagiri N, Okazaki M, Ogata E, Ikeda K. c-Fos protein as a target of anti-osteoclastogenic action of vitamin D, and synthesis of new analogs. J Clin Invest 2006; 116:528-35. [PMID: 16424941 PMCID: PMC1332025 DOI: 10.1172/jci24742] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2005] [Accepted: 11/08/2005] [Indexed: 12/31/2022] Open
Abstract
Although active vitamin D drugs have been used for the treatment of osteoporosis, how the vitamin D receptor (VDR) regulates bone cell function remains largely unknown. Using osteoprotegerin-deficient mice, which exhibit severe osteoporosis due to excessive receptor activator of NF-kappaB ligand/receptor activator of NF-kappaB (RANKL/RANK) stimulation, we show herein that oral treatment of these mice with 1alpha,25-dihydroxyvitamin D3 [1alpha,25(OH)2D3] inhibited bone resorption and prevented bone loss, suggesting that VDR counters RANKL/RANK signaling. In M-CSF-dependent osteoclast precursor cells isolated from mouse bone marrow, 1alpha,25(OH)2D3 potently and dose-dependently inhibited their differentiation into multinucleate osteoclasts induced by RANKL. Among signaling molecules downstream of RANK, 1alpha,25(OH)2D3 inhibited the induction of c-Fos protein after RANKL stimulation, and retroviral expression of c-Fos protein abrogated the suppressive effect of 1alpha,25(OH)2D3 on osteoclast development. By screening vitamin D analogs based on their c-Fos-suppressing activity, we identified a new analog, named DD281, that inhibited bone resorption and prevented bone loss in ovariectomized mice, more potently than 1alpha,25(OH)2D3, with similar levels of calcium absorption. Thus, c-Fos protein is an important target of the skeletal action of VDR-based drugs, and DD281 is a bone-selective analog that may be useful for the treatment of bone diseases with excessive osteoclastic activity.
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Affiliation(s)
- Hisashi Takasu
- Department of Bone and Joint Disease, Research Institute, National Center for Geriatrics and Gerontology, Obu, Japan
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29
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30
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Shimizu H, Shimizu K, Uchiyama Y, Sugita A, Mikami T, Yamauchi T, Kato M, Morikawa K. Synthesis of 21-nor-22-oxa-1α,25-dihydroxyvitamin D3 derivatives in quest of a drug with low calcemic activity. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.08.160] [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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31
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Yanagawa H, Sugita A, Azuma M, Ogawa H, Kitamuro C, Yoneda K, Shinkawa K, Tani K, Sone S. Long-term follow-up of pulmonary function in bronchial asthma patients treated with pranlukast. Lung 2004; 182:51-8. [PMID: 14752672 DOI: 10.1007/s00408-003-1044-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/01/2003] [Indexed: 10/26/2022]
Abstract
Clinical studies have shown that pranlukast, a selective cysteinyl leukotriene antagonist, is effective for bronchial asthma. In the present paper, we retrospectively analyzed long-term asthma control by pranlukast treatment in patients treated with inhaled corticosteroids. We analyzed medical records and asthma diaries of 21 patients (9 males, 12 females) (52.1 +/- 3.5 years of age) with bronchial asthma who experienced increase of more than 10 L/min in peak expiratory flow in the first 4 weeks of treatment with pranlukast (450 mg/day) and were subsequently treated with pranlukast for more than 1 year. They all received inhaled corticosteroids (400-1600 microg/day of beclomethasone dipropionate or equivalent). We examined clinical control in terms of time course of self-monitored peak expiratory flow. During the analyzed period, the dose of inhaled corticosteroids was tapered in 4 patients, constant in 15 patients and increased in 2 patients. In 19 patients treated with unchanged or tapered dose of inhaled corticosteroids, improvement in the increase of mean PEF at 4-week treatment was maintained for 1 year. No difference in the add-on effect of pranlukast was observed in patients treated with less than 800 microg and more than or equal to 800 microg of inhaled corticosteroids. Four patients underwent reduction of inhaled corticosteroids in the analyzed period and PEF was well-maintained and even increased by pranlukast treatment. In 11 patients in whom data for 3 years were available, the improvement in PEF persisted for 3 years. Although the present investigation is a retrospective analysis, these data may suggest that pranlukast has no tachyphylaxis and its effect continues for more than 1 year.
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Affiliation(s)
- H Yanagawa
- Department of Internal Medicine and Molecular Therapeutics, The University of Tokushima School of Medicine, Tokushima, 770-8503, Japan.
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32
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Yokoyama K, Teranishi Y, Toya Y, Shirai T, Fukuda Y, Aoyama M, Akahane Y, Inoue N, Ueda H, Yamakawa K, Yokoyama A, Yamada H, Yabushita A, Sugita A. Optimal control of ultrafast selection. J Chem Phys 2004; 120:9446-9. [PMID: 15267954 DOI: 10.1063/1.1752882] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Optimal laser control for ultrafast selection of closely lying excited states whose energy separation is smaller than the laser bandwidth is reported on the two-photon transition of atomic cesium; Cs(6S-->7D(J), J=5/2 and 3/2). Selective excitation was carried out by pulse shaping of ultrashort laser pulses which were adaptively modulated in a closed-loop learning system handling eight parameters representing the electric field. Two-color fluorescence from the respective excited states was monitored to measure the selectivity. The fitness used in the learning algorithm was evaluated from the ratio of the fluorescence yields. After fifty generations, a pair of nearly transform-limited pulses were obtained as an optimal pulse shape, proving the effectiveness of the "Ramsey fringes" mechanism. The contrast of the selection ratio was improved by approximately 30% from the simple "Ramsey fringes" experiment.
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Affiliation(s)
- K Yokoyama
- Advanced Photon Research Center, Japan Atomic Energy Research Institute, Kizu-cho, Kyoto 619-0215, Japan
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33
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Tanaka M, Kusumi T, Oshitani N, Nishigami T, Iwao Y, Hatada Y, Sugita A, Yao T, Takano M, Iizuka B, Mukai M, Maeda K, Fukuda S, Morita T, Hara M, Saito H, Kudo H. Validity of simple mucosal biopsy criteria combined with endoscopy predicting patients with ulcerative colitis ultimately requiring surgery: a multicenter study. Scand J Gastroenterol 2003; 38:594-8. [PMID: 12825866 DOI: 10.1080/00365520310000564] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Recent mucosal biopsy criteria combined with endoscopy effectively differentiate patients with ulcerative colitis ultimately requiring surgery (UC-S) from those receiving medication alone (UC-M). However, the criteria were inconvenient in practical use because of the need for complicated calculations, and the validity has not been verified in other institutes where the indications for surgery may differ. The aims of this multicenter study were to propose simple criteria in which calculation can be performed by mental arithmetic and to measure their validity. METHODS Based on the above original criteria, we constructed simple criteria in which coefficients and constant were simplified to integral numbers. The criteria consisted of the diagnostic categories, highest-risk, high-risk, unpredictable, low-risk, and lowest-risk of surgery. The validity of these proposed criteria was evaluated in 121 patients with UC-S and 186 with UC-M from 11 institutes. RESULTS The categories of high-risk and low-risk had sensitivities exceeding 86.0% and specificities exceeding 95.2%, and the validities were maintained at high levels in most individual institutes. There was little difference in validity between the proposed and original criteria when testing using the same patients. CONCLUSIONS Despite simplified coefficients and constant, the proposed criteria reliably predicted the eventual clinical outcome of patients with ulcerative colitis and would be helpful in determining the necessity of surgery.
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Affiliation(s)
- M Tanaka
- Dept. of Pathology, Hirosaki University School of Medicine, Hirosaki, Japan.
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34
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Tanaka M, Saito H, Kusumi T, Shimoyama T, Fukuda S, Morita T, Sugita A, Hara M, Kudo H. Biopsy pathology predicts patients with ulcerative colitis subsequently requiring surgery. Scand J Gastroenterol 2002; 37:200-5. [PMID: 11843058 DOI: 10.1080/003655202753416885] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND The clinical course of patients with ulcerative colitis (UC) is unpredictable, and 17%-38% ultimately require surgery. We hypothesized that mucosal histology may differ between patients requiring surgery and those receiving medication alone. The aim of this study was to elucidate comprehensive criteria consisting of specific histologic features enabling the prediction of failure to medical treatment. METHODS We studied colorectal biopsy specimens from 67 patients ultimately requiring surgery (UC-S) and 90 receiving medication alone for more than 3 years (UC-M), and conducted multiple logistic regression analysis on 70 histologic features together with endoscopic disease extent and patient age. The analysis constructed an equation finding probability of UC-S (P(UC-S)). Based on a receiver-operating characteristic curve, we selected four cut-off values of P(UC-S), and determined criteria of five categories: highest-risk, higher-risk, unpredictable, lower-risk and lowest-risk of surgery. Sensitivity and specificity of criteria were evaluated in a 2 x 5 table. RESULTS Statistically significant features predicting UC-S were deep ulceration (X1), frequent crypt abscesses (X2), focal and segmental mononuclear cell infiltration (X3 and X4), paucity of eosinophils (X5: eosinophil infiltration) and wide extent of the disease (X6). The regression equation was as follows: logitP(UC-S) = -16.26 + 3.20X1 + 4.83X2 + 11.65X3 + 5. 10X4 - 5.59X5 + 5.53X6. Higher-risk and lower-risk showed sensitivity exceeding 91.0% and specificity exceeding 98.5% in predicting the outcome. CONCLUSIONS Our criteria incorporating specific histologic features and endoscopic disease extent reliably predict eventual clinical outcome, and are expected to prove useful in determining the necessity of surgery.
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Affiliation(s)
- M Tanaka
- Dept. of Pathology, Hirosaki University School of Medicine, Japan.
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35
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Tang Y, Osawa H, Onuma H, Nishimiya T, Ochi M, Sugita A, Makino H. Phosphodiesterase 3B gene expression is enhanced in the liver but reduced in the adipose tissue of obese insulin resistant db/db mouse. Diabetes Res Clin Pract 2001; 54:145-55. [PMID: 11689269 DOI: 10.1016/s0168-8227(01)00271-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Phosphodiesterase (PDE) 3B, when activated by insulin, causes a decrease in intracellular cAMP concentration. The activation of this enzyme results in the reduced output of free fatty acids (FFA) from adipocytes, and an increased lipogenesis in liver. We have recently shown that PDE3B gene expression is reduced in adipose tissues of KKAy mice. We intend to further elucidate the regulation of PDE3B in liver as well as adipose tissues in relation to the insulin resistant state. We examined PDE3B gene expression in liver and adipose tissues of obese, insulin-resistant diabetic db/db mice and also checked the effect of an insulin-sensitizing drug, troglitazone, on this gene expression. In the liver of db/db mice, PDE3B mRNA, its corresponding protein, and the associated catalytic activity were all increased by 2.1, 1.9 and 1.6-fold, respectively, over those in db/+ control mice. Histological examination revealed substantial triglyceride storage in the liver of db/db mice. Conversely, in the adipose tissue of db/db mice, PDE3B mRNA, protein, and its associated activity were all decreased by 0.38, 0.33 and 0.36-fold, respectively. Troglitazone, which has no effect on PDE3B in liver, increased the expression of this gene in adipocytes. This increase is associated with a reduction in the elevated levels of serum insulin, glucose, FFA and triglycerides. The reduced PDE3B gene expression in adipose tissues, which results in the elevation of serum FFA, could be the primary event in the development of insulin resistance in db/db mice. The enhanced PDE3B gene expression may correlate with changes in triglyceride storage in the liver of these mice.
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MESH Headings
- 3',5'-Cyclic-AMP Phosphodiesterases/biosynthesis
- 3',5'-Cyclic-AMP Phosphodiesterases/genetics
- Adipose Tissue/drug effects
- Adipose Tissue/enzymology
- Animals
- Blood Glucose/metabolism
- Blotting, Western
- Chromans/pharmacology
- Cyclic Nucleotide Phosphodiesterases, Type 3
- Fatty Acids, Nonesterified/blood
- Gene Expression Regulation, Enzymologic
- Hypoglycemic Agents/pharmacology
- Insulin/blood
- Insulin Resistance/physiology
- Liver/drug effects
- Liver/enzymology
- Male
- Mice
- Mice, Inbred C57BL
- Mice, Obese
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- Thiazoles/pharmacology
- Thiazolidinediones
- Triglycerides/blood
- Troglitazone
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Affiliation(s)
- Y Tang
- Department of Laboratory Medicine, Ehime University School of Medicine, Shigenobu, Ehime 791-0295, Japan
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36
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Sasaki T, Sugiyama T, Nanjo H, Hoshi N, Murakami M, Sugita A, Takahashi M, Kawamura K, Ono I, Masuda H. Endometrioid adenocarcinoma arising from adenomyosis: Report and immunohistochemical analysis of an unusual case. Pathol Int 2001; 51:308-13. [PMID: 11350616 DOI: 10.1046/j.1440-1827.2001.01200.x] [Citation(s) in RCA: 23] [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: 11/20/2022]
Abstract
A case of endometrioid adenocarcinoma arising from adenomyosis is reported. The patient was a 53-year-old woman who complained of vulvar itching. Smear cytology of the endometrium revealed adenocarcinoma. Magnetic resonance imaging of the pelvis revealed a lesion with a slightly high intensity in the uterine fundus on a T2-weighted image. Semiradical total hysterectomy and bilateral adnexectomy were performed, followed by chemotherapy. Histologically, the lesion in the uterine fundus was composed mostly of adenocarcinoma with stromal invasion. There were many adenomyotic foci in and around the carcinoma, including some showing transition to adenocarcinoma. There was no malignant finding in the normally situated endometrium. The carcinoma invaded in the myometrium, involving the uterine serosa, but no dissemination to the peritoneal cavity was found. The carcinoma was, therefore, considered to be endometrioid adenocarcinoma arising from adenomyosis. Immunohistochemistry showed expression of p53 oncoprotein and Ki-67 antigen in the carcinoma cells. The value of immunohistochemistry in predicting prognosis is discussed.
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Affiliation(s)
- T Sasaki
- Department of Pathology, Nakadori General Hospital, Yokohama, Japan
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37
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Unny S, Du Y, Zhu L, Gordon RJ, Sugita A, Kawasaki M, Matsumi Y, Seideman T. Above-threshold dissociative ionization in the intermediate intensity regime. Phys Rev Lett 2001; 86:2245-2248. [PMID: 11289900 DOI: 10.1103/physrevlett.86.2245] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2000] [Indexed: 05/23/2023]
Abstract
The problem of dissociative ionization at intermediate intensities ( 10(10)-10(12) W cm(-2)) was studied using the example of I2 and the technique of velocity map imaging. Several new phenomena were observed, including a continuous distribution of recoil energies peaked at zero-kinetic energy, a set of constant dissociative ionic states, and strong anisotropy of the fragment velocity distribution that is diminished by intermediate resonances.
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Affiliation(s)
- S Unny
- Department of Chemistry (m/c 111), University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, USA
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38
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Sugita A, Saito T, Kano H, Yamashita M, Kobayashi T. Wave packet dynamics in a quasi-one-dimensional metal-halogen complex studied by ultrafast time-resolved spectroscopy. Phys Rev Lett 2001; 86:2158-2161. [PMID: 11289879 DOI: 10.1103/physrevlett.86.2158] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2000] [Indexed: 05/23/2023]
Abstract
An ultrafast optical response is studied in a quasi-one-dimensional halogen-bridged mixed-valence metal complex [Pt(en)(2)] [Pt(en)2I2] (ClO4)(4) with ultrafast time resolution. Wave packet motions both in the ground and self-trapped exciton (STE) states are observed as oscillatory modulations in the time-resolved reflectivity. The wave packet motion on the STE potential surface begins after about 50 fs with respect to the photoexcitation. This delay is attributed to the lattice relaxation from the free exciton state to the STE state.
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Affiliation(s)
- A Sugita
- Department of Physics, University of Tokyo, 7-3-1, Hongo, Bukyo-ku, Tokyo 113-0033, Japan
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Fukushima T, Sugita A, Koganei K, Shinozaki M. The incidence and outcome of pelvic sepsis following handsewn and stapled ileal pouch anal anastomoses. Surg Today 2001; 30:223-7. [PMID: 10752773 DOI: 10.1007/s005950050049] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The incidence and outcome of pelvic sepsis was analyzed in 210 patients who underwent restorative proctocolectomy for ulcerative colitis (UC) in 197 patients, and for familial adenomatous polyposis (FAP) in 13 patients. Pelvic sepsis developed in 18 patients (8.6%) and a significantly higher incidence was seen in men than in women, at 13.6% vs 3.7%, respectively (P < 0.05). The incidence of pelvic sepsis in patients with UC complicated by toxic megacolon and/or fulminant colitis was significantly higher that in those without any preoperative complications, at 36.4% vs 7.4% (P < 0.05). The incidence of pelvic sepsis following handsewn anastomosis was significantly higher than that following stapled anastomosis, at 15.6% vs 5.5% (P < 0.05). The outcome of pelvic sepsis in patients with a stapled anastomosis was better than that in those with a handsewn anastomosis. The prognosis of women who developed pelvic sepsis was better than that of men who developed pelvic sepsis. The risk factors predisposing to pelvic sepsis were UC, especially when complicated by toxic megacolon and/or fulminant colitis, and male sex, while a handsewn anastomosis was more vulnerable than a stapled anastomosis.
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Affiliation(s)
- T Fukushima
- Department of Surgery, Yokohama City Hospital, Yokohama, Japan
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Abstract
A 65-year-old man with a history of cerebral infarction sustained scald burns over 54% of the body surface. In spite of adequate fluid therapy, respiratory management with an artificial ventilator, and continuous hemodiafiltration, the patient died on day 5 post-admission. Autopsy revealed necrotic change on the surface of the liver, and necrosis and perforation of the ileum. Histologic examination showed necrosis of the hepatocytes lining the surface and necrosis of the hepatocytes and congestion in the central area of the liver. We speculated that systemic responses to the extensive burn resulted in hyperemia of the intraperitoneal organs, thereby inducing acute liver failure and the subsequent development of multiple organ failure.
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Affiliation(s)
- H Nakae
- Department of Emergency and Critical Care Medicine, Akita University School of Medicine, 1-1-1 Hondo, Akita 010-8543, Japan
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Kimura H, Sugita A, Nishiyama K, Shimada H. [Treatment of duodenal Crohn's disease with stenosis: case report of 6 cases]. Nihon Shokakibyo Gakkai Zasshi 2000; 97:697-702. [PMID: 10879081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Treatment for duodenal Crohn's disease with stenosis were analyzed in 6 cases. There were 3 men and 3 women, and age at onset of duodenal Crohn's disease ranged from 25 to 46 years old. All of them complained of nausea and vomiting, and 4 of them complained of upper abdominal pain. Radiographic examination showed stenosis of the duodenum in all cases, and endoscopic examination showed cobblestone appearance in 3. Endoscopic balloon dilation was attempted in all cases. Two of them were successful, but finally the other 4 required gastro-jejunostomy because of long, fibrous stenosis. Prognosis was good after the operation in all cases.
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Affiliation(s)
- H Kimura
- Second Department of Surgery, Yokohama City University School of Medicine
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Yamada H, Okamoto K, Kaneko A, Sugita A. Dispersion resulting from phase and amplitude errors in arrayed-waveguide grating multiplexers-demultiplexers. Opt Lett 2000; 25:569-571. [PMID: 18064114 DOI: 10.1364/ol.25.000569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We report dispersion resulting from phase and amplitude errors in arrayed-waveguide grating (AWG) multiplexers-demultiplexers. We measure the phase- and amplitude-error distributions of two different types of AWG and discuss their effects on the dispersion. The results show that the origin of the dispersion in the AWG is the low-order Fourier components of the symmetric phase and the antisymmetric amplitude errors. We also discuss the dependence of the dispersion on the passband shape in the presence of the same fabrication errors.
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Abstract
Arteries that belong to the central nervous system (CNS) have thick and monotonous internal elastic lamina (IEL), Willis ring, and no collateral branch to the systemic circulation. These characteristics suggest that the circulation of the CNS is constant. In order to know how flow controls the arterial configuration of the CNS, flow of the vertebral and basilar arteries was increased experimentally using eight adult male Japanese white rabbits. Flow increase was induced by the simple ligation of the bilateral common carotid arteries (ligation group, n = 4) or by the ligation of the bilateral common carotid arteries at 1 week after arteriovenous fistula (AVF) between the left common carotid artery and the left external jugular vein (ligation plus AVF group, n = 4). Cineangiography revealed distinct flow increase in the ligation group at 5 weeks after ligation and in the ligation plus AVF group at 5 weeks after AVF (4 weeks after ligation). Vertebral and basilar arteries were remarkably dilated and elongated. Histopathologically, severe disruption of the IEL and focal thinning of the media were distinct. Endothelial cells were preserved and there was no inflammatory cell infiltration. These morphological features are consistent with increased flow-induced adaptive remodeling. It is suggested that the constancy of the flow may give the arterial tree of the CNS these morphological characterizations.
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Affiliation(s)
- H Masuda
- Second Department of Pathology, Akita University School of Medicine, Japan.
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Kameyama K, Maeda M, Okamoto T, Sugita A, Hayashi E, Nakamoto K. [Stent intubation for the airway stenosis under PCPS]. Kyobu Geka 1999; 52:1078-83. [PMID: 10589185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Placement of stents for the tracheal or carinal stenosis have a meaning of maintaining the airway. Failure of the stenting causes death. In cases of severe airway stenosis and low pulmonary function, the pulmonary support method should be performed instead of intubation and mechanical ventilation. Generally, PCPS (percutaneous cardio-pulmonary support system) is used as a pulmonary support. This method was very useful to place stents for airway stenosis. We concluded that PCPS was useful in emergency cases, and in cases of severe fixed type airway stenosis and low pulmonary function it had be on stand-by.
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Affiliation(s)
- K Kameyama
- Second Department of Surgery, Kagawa Medical University, Japan
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Hashimoto H, Iwao Y, Hibi T, Ueno F, Miyahara T, Sugita A, Sakurai T, Fukuhara S. [A model of quality of life in the patients with Crohn's disease]. Nihon Shokakibyo Gakkai Zasshi 1999; 96:1258-65. [PMID: 10586601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
PURPOSE To identify the integrated impact of psychological, social, and clinical factors onto the quality of life (QOL) in the patients with Crohn's disease. SUBJECTS AND METHODS Two hundred twenty two out-patients participated in a cross-sectional questionnaire survey in which health-related QOL (SF36), disease-specific symptoms, psychological adaptation and social support were measured. Multi-variable regression models were used to test the impact of clinical, psychological, and social factors on the patient's QOL and symptom reports. RESULTS The patient's symptoms and health-related QOL were significantly associated not only with disease activities, but also with the patient's psychological adaptation and the quality of social support. CONCLUSION The results strongly suggest that a psychoeducational intervention may be useful in combination with a clinical intervention to improve the patient's QOL.
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Affiliation(s)
- H Hashimoto
- Department of Medicine, School of Medicine, Teikyo University
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Sumida T, Hamakawa H, Sogawa K, Bao Y, Zen H, Sugita A, Nezu K, Abe Y, Tanioka H, Ueda N. Telomerase activation and cell proliferation during 7,12-dimethylbenz[a]anthracene-induced hamster cheek pouch carcinogenesis. Mol Carcinog 1999; 25:164-8. [PMID: 10411142 DOI: 10.1002/(sici)1098-2744(199907)25:3<164::aid-mc2>3.0.co;2-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Telomerase is a ribonucleoprotein complex intimately involved in cell immortalization and carcinogenesis. This enzyme is activated and stabilizes telomere length in almost all types of cancer. Telomerase may be necessary for continuous cell proliferation. In this study, we analyzed telomerase activity in hamster experimental oral lesions (starting from epithelial hyperplasia through dysplasia, carcinoma in situ, and invasive carcinoma) evoked by 7,12-dimethylbenz[a]anthracene, and in normal mucosa. We also analyzed proliferative activity in these lesions by using immunohistochemical analysis and flow cytometry. Histologically normal epithelium expressed weak telomerase activity. The telomerase activity count increased rapidly in the early stage of carcinogenesis and gradually in the late stage. Cell-proliferative activity closely correlated with progression of disease. These findings indicate that telomerase activation is an early event and that increases in telomerase activity upregulate cell proliferation in chemically induced hamster oral carcinogenesis.
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Affiliation(s)
- T Sumida
- Department of Oral Surgery, Ehime University School of Medicine, Japan
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Sato M, Tokui K, Watanabe Y, Lee T, Kohtani T, Nezu K, Kawachi K, Kito K, Sugita A, Ueda N. Generalized intraperitoneal seeding of hepatocellular carcinoma after microwave coagulation therapy: a case report. Hepatogastroenterology 1999; 46:2561-4. [PMID: 10522041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
We first describe a case of generalized intraperitoneal seeding of hepatocellular carcinoma (HCC) after microwave coagulation therapy (MCT). A 61 year-old man underwent operative MCT for an exophytic HCC, 60 mm in diameter, in segment IV of his cirrhotic liver. Despite successful tumor ablation, the serum alpha-fetoprotein levels continuously rose after MCT. Five months later, radiographic examinations delineated several perihepatic masses with hypervascularity, and the patient presented with constipation. At the second laparotomy, there were numerous small peritoneal metastases involving the entire peritoneal cavity and slightly bloody ascites. An omental mass, 50 mm in diameter, involved the transverse colon. Most of these intraabdominal masses were removed together with the involved colon. Histologically, the initial tumor was a moderately differentiated HCC, and the peritoneal masses were poorly differentiated HCCs. The patient died of rapid tumor progression and bleeding 2 months later. In conclusion, we should be aware of the possible occurrence of peritoneal seeding after MCT for HCC. Every effort should be made to prevent this serious complication, particularly in cases of superficial, large, and less differentiated HCCs.
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Affiliation(s)
- M Sato
- Department of Surgery II, Ehime University School of Medicine, Japan
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Abstract
Telomerase activity is considered to be a diagnostic marker of malignancy since most malignant cells express this activity and most somatic cells do not. However, the detection of telomerase activity is rather complicated and is affected by many factors. Recently, human telomerase components were cloned and found to consist of 3 subunits. We assessed which component of telomerase best correlates with malignancy in order to study the possibilities for developing a new diagnostic marker. Telomerase activity was measured by a telomeric repeat amplification protocol (TRAP) assay, and the telomerase components hTR, hTRT-mRNA and TP1-mRNA were detected by the reverse transcriptase-polymerase chain reaction (RT-PCR). Twenty-five of 26 oral malignant lesions, 9 of 22 benign lesions and none of 19 normal control tissues exhibited distinct telomerase activity. hTR and TP1-mRNA expression levels were detected in all malignant lesions and normal control tissues and had no significant correlation with the telomerase activity results. In contrast, hTRT-mRNA expression was closely associated with telomerase activity. All lesions expressing hTRT were telomerase positive. In addition, some samples of dysplastic lesions, benign tumors, lichen planus and normal mucosa exhibiting poor telomerase activity revealed weak expression of hTRT. Expression levels of hTRT-mRNA positively correlated with clinical and pathological findings. Detection of hTRT-mRNA by RT-PCR appeared to be more sensitive for telomerase than measurement of telomerase activity by the TRAP assay. Detection of hTRT-mRNA may provide information useful in the diagnosis of oral malignancies.
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Affiliation(s)
- T Sumida
- Department of Oral Surgery, Ehime University School of Medicine, Onsen-gun, Japan
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Nakamoto K, Maeda M, Okamoto T, Kameyama K, Sugita A, Hayashi E. Preoperative diagnosis with video-assisted thoracoscopy with miniaturized endoscopes in general thoracic surgery: a preliminary study. Chest 1998; 114:1749-55. [PMID: 9872211 DOI: 10.1378/chest.114.6.1749] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Video-assisted thoracoscopy using a miniaturized endoscope (mini-VAT) was applied for preoperative diagnosis in general thoracic surgery. Thirty-one patients, including 27 with indeterminate pulmonary nodule and 4 with suspected pleural involvement of lung cancer or metastatic pleural tumor, underwent mini-VAT. As a pilot study, 14 of the former 27 patients underwent mini-VAT while receiving general anesthesia. As a prospective study, all the remaining 17 patients underwent mini-VAT while receiving local anesthesia. Solid scopes of three different sizes, 0.9, 1.9, or 4.0 mm diameter, were used. An artificial pneumothorax for scope introduction was produced by needle thoracentesis under atmospheric pressure. Automatic cutting needle biopsy was used for tissue sampling. In the pilot study group, mini-VAT with a 4.0-mm scope provided excellent visibility and diagnostic sensitivity of 100%. This study group showed the diagnostic sensitivity of needle biopsy for pulmonary nodule to be 100%. Hemorrhages and air leaks at biopsy sites were sealed with blood coagulation in a short time. In the prospective study group, mini-VAT with a 4.0-mm scope with the patients receiving local anesthesia provided a diagnostic sensitivity of 91% for pulmonary nodule and a diagnostic accuracy of 100% for suspected pleural involvement. Causes of failure of mini-VAT with the use of local anesthesia were cough reflex during needle biopsy and incomplete lung collapse for deeply located target in two cases. The adverse effects of the mini-VAT were paradoxical respiration in two cases in which local anesthesia was used. The patients who received only local anesthesia required no chest tube drainage. Mini-VAT is a simple, minimally invasive procedure suitable as a preoperative examination technique for histologic diagnosis, evaluation of disease progression, and selection of strategy in thoracic surgery.
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Affiliation(s)
- K Nakamoto
- Second Department of Surgery, Kagawa Medical School, Japan
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Abstract
Telomerase is a ribonucleoprotein complex intimately associated with cell immortalization and neoplastic transformation. In almost all types of cancer this enzyme is reactivated and stabilizes telomere length. It may be necessary for continuous cell proliferation. In this study we used a non-radioactive polymerase chain reaction assay to analyze telomerase activity in various tissue specimens taken from the oral cavity. Four of 4 (100%) squamous cell carcinoma cell lines, 28 of 29 (96%) malignant tumors, 10 of 28 (36%) benign lesions, and none of the 14 (0%) oral control tissues possessed telomerase activity. Moreover, 4 of 15 (27%) oral rinses and 3 of 3 (100%) samples of ascites and pleural effusion taken from patients with oral malignancy were telomerase positive. These findings indicate that the evaluation of telomerase activity in tissue and body fluid specimens may provide information useful in the diagnosis of oral malignancy.
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Affiliation(s)
- T Sumida
- Department of Oral Surgery, Ehime University School of Medicine, Japan
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