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Kasugai D, Tanaka T, Suzuki T, Ito Y, Nishida K, Ozaki M, Kutsuna T, Yokoyama T, Kaneko H, Ogata R, Matsui R, Goshima T, Hamada H, Ishii A, Kodama Y, Jingushi N, Ishikura K, Kamidani R, Tada M, Okada H, Yamamoto T, Goto Y. Association between loss of hypercoagulable phenotype, clinical features and complement pathway consumption in COVID-19. Front Immunol 2024; 15:1337070. [PMID: 38529277 PMCID: PMC10961343 DOI: 10.3389/fimmu.2024.1337070] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 02/27/2024] [Indexed: 03/27/2024] Open
Abstract
Background Coronavirus disease 2019 (COVID-19) features a hypercoagulable state, but therapeutic anticoagulation effectiveness varies with disease severity. We aimed to evaluate the dynamics of the coagulation profile and its association with COVID-19 severity, outcomes, and biomarker trajectories. Methods This multicenter, prospective, observational study included patients with COVID-19 requiring respiratory support. Rotational thromboelastometry findings were evaluated for coagulation and fibrinolysis status. Hypercoagulable status was defined as supranormal range of maximum clot elasticity in an external pathway. Longitudinal laboratory parameters were collected to characterize the coagulation phenotype. Results Of 166 patients, 90 (54%) were severely ill at inclusion (invasive mechanical ventilation, 84; extracorporeal membrane oxygenation, 6). Higher maximum elasticity (P=0.02) and lower maximum lysis in the external pathway (P=0.03) were observed in severely ill patients compared with the corresponding values in patients on non-invasive oxygen supplementation. Hypercoagulability components correlated with platelet and fibrinogen levels. Hypercoagulable phenotype was associated with favorable outcomes in severely ill patients, while normocoagulable phenotype was not (median time to recovery, 15 days vs. 27 days, P=0.002), but no significant association was observed in moderately ill patients. In patients with severe COVID-19, lower initial C3, minimum C3, CH50, and greater changes in CH50 were associated with the normocoagulable phenotype. Changes in complement components correlated with dynamics of coagulation markers, hematocrit, and alveolar injury markers. Conclusions While hypercoagulable states become more evident with increasing severity of respiratory disease in patients with COVID-19, normocoagulable phenotype is associated with triggered by alternative pathway activation and poor outcomes.
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Affiliation(s)
- Daisuke Kasugai
- Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Taku Tanaka
- Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takako Suzuki
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Ito
- Department of Pediatrics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuki Nishida
- Department of Biostatistics, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masayuki Ozaki
- Department of Critical Care Medicine, Komaki City Hospital, Komaki, Japan
| | - Takeo Kutsuna
- Department of Respiratory Medicine, Daido Hospital, Nagoya, Japan
| | - Toshiki Yokoyama
- Department of Emergency and Critical Care Medicine, Tosei General Hospital, Seto, Japan
| | - Hitoshi Kaneko
- Department of Emergency and Critical Care Medicine, Tokyo Metropolitan Tama Medical Center, Fuchu, Japan
| | - Ryo Ogata
- Department of Respiratory Medicine, Meitetsu Hospital, Nagoya, Japan
| | - Ryohei Matsui
- Department of Emergency and Critical Care Medicine, Nagoya City University Hospital, Nagoya, Japan
| | - Takahiro Goshima
- Department of Emergency and General Internal Medicine, Fujita Health University, Toyoake, Japan
| | - Hiroshi Hamada
- Department of Internal Medicine, National Hospital Organization Nagoya Medical Center, Nagoya, Japan
| | - Azusa Ishii
- Department of Respiratory Medicine, Chukyo Hospital, Nagoya, Japan
| | - Yusuke Kodama
- Department of Internal Medicine, Kyoritsu General Hospital, Nagoya, Japan
| | - Naruhiro Jingushi
- Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ken Ishikura
- Department of Emergency and Disaster Medicine, Mie University Graduate School of Medicine, Tsu, Japan
| | - Ryo Kamidani
- Department of Emergency and Critical Care Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Masashi Tada
- Department of Internal Medicine, SaiShukan Hospital, Kitanagoya, Japan
| | - Hideshi Okada
- Department of Emergency and Critical Care Medicine, Gifu University Graduate School of Medicine, Gifu, Japan
| | - Takanori Yamamoto
- Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukari Goto
- Department of Emergency and Critical Care Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Department of Emergency Medicine, Nagoya EkiSaikai Hospital, Nagoya, Japan
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Ogata R, Kido T, Takeda K, Nemoto K, Heima R, Takao M, Miyashita R, Ozasa M, Tokito T, Okuno D, Ito Y, Yura H, Koga T, Hashimoto K, Takemoto S, Takazono T, Ishimoto H, Sakamoto N, Fukuda K, Sasaki Y, Obase Y, Ishimatsu Y, Yatera K, Izumikawa K, Mukae H. Disseminated Mycobacterium genavense Infection Mimicking Sarcoidosis: A Case Report and Review of Literature on Japanese Patients. Microorganisms 2023; 11:2145. [PMID: 37763989 PMCID: PMC10535052 DOI: 10.3390/microorganisms11092145] [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: 07/27/2023] [Revised: 08/19/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Sarcoidosis is a systemic inflammatory disease characterized by noncaseating epithelioid cell granulomas. However, certain infections can exhibit similar histological findings. We present a case of a 69-year-old man who was initially diagnosed with sarcoidosis and later was confirmed, through 16S rRNA sequencing, to have disseminated Mycobacterium genavense infection. Acid-fast bacteria were detected in the bone marrow biopsy using Ziehl-Neelsen staining, but routine clinical tests did not provide a definitive diagnosis. The patient tested negative for HIV, anti-interferon-gamma antibodies, and genetic immunodeficiency disorders. He was treated with multiple drugs, including aminoglycosides and macrolides, but showed no improvement in fever and pancytopenia. However, these clinical signs responded favorably to steroid therapy. We reviewed 17 Japanese cases of M. genavense infection. All cases were in males; 7/17 (41%) were HIV-negative; and 12/17 (71%) had a decreased CD4 count. Genetic analysis confirmed M. genavense isolation, and macrolides were used universally. Mycobacterium genavense infection is challenging to identify and mimics other systemic inflammatory diseases such as sarcoidosis. There are no standard treatment protocols. Our case report and Japanese case review contribute to understanding this rare disease.
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Affiliation(s)
- Ryo Ogata
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Takashi Kido
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Kazuaki Takeda
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Kazuki Nemoto
- Department of Respiratory Medicine, University of Occupational and Environmental Health, Japan, Kitakyusyu 807-8556, Japan; (K.N.); (K.Y.)
| | - Riko Heima
- Clinical Genomics Center, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.H.); (M.T.)
| | - Mami Takao
- Clinical Genomics Center, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.H.); (M.T.)
| | - Ritsuko Miyashita
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Mutsumi Ozasa
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Takatomo Tokito
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Daisuke Okuno
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Yuya Ito
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Hirokazu Yura
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Tomohiro Koga
- Department of Immunology and Rheumatology, Division of Advanced Preventive Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan;
| | - Kunio Hashimoto
- Department of Pediatrics, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan;
| | - Shinnosuke Takemoto
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Takahiro Takazono
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
- Department of Infectious Diseases, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan;
| | - Hiroshi Ishimoto
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Noriho Sakamoto
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Kazumasa Fukuda
- Department of Microbiology, University of Occupational and Environmental Health, Japan, Kitakyusyu 807-8556, Japan;
| | - Yuka Sasaki
- Center for Pulmonary Diseases, National Hospital Organization Tokyo National Hospital, Tokyo 204-8585, Japan;
| | - Yasushi Obase
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
| | - Yuji Ishimatsu
- Department of Nursing, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8520, Japan;
| | - Kazuhiro Yatera
- Department of Respiratory Medicine, University of Occupational and Environmental Health, Japan, Kitakyusyu 807-8556, Japan; (K.N.); (K.Y.)
| | - Koichi Izumikawa
- Department of Infectious Diseases, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8501, Japan;
| | - Hiroshi Mukae
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki 852-8501, Japan; (R.O.); (K.T.); (R.M.); (M.O.); (T.T.); (D.O.); (Y.I.); (H.Y.); (S.T.); (T.T.); (H.I.); (N.S.); (Y.O.); (H.M.)
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Ogata R, Soda H, Fukuda Y, Mukae H. Exploring the ethical complexities of do-not-attempt-resuscitation orders using the approach of advance care planning. Acute Med Surg 2023; 10:e903. [PMID: 37909008 PMCID: PMC10613806 DOI: 10.1002/ams2.903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/10/2023] [Indexed: 11/02/2023] Open
Affiliation(s)
- Ryo Ogata
- Department of Respiratory MedicineSasebo City General HospitalNagasakiJapan
| | - Hiroshi Soda
- Department of Respiratory MedicineSasebo City General HospitalNagasakiJapan
- Clinical Research and Medical Ethics CenterSasebo City General HospitalNagasakiJapan
| | - Yuichi Fukuda
- Department of Respiratory MedicineSasebo City General HospitalNagasakiJapan
| | - Hiroshi Mukae
- Department of Respiratory MedicineNagasaki University Graduate School of Biomedical SciencesNagasakiJapan
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Ogata R, Takemoto S, Fukuda M, Senju H, Nakatomi K, Sugasaki N, Tomono H, Suyama T, Shimada M, Akagi K, Hayashi F, Dotsu Y, Taniguchi H, Gyotoku H, Yamaguchi H, Nagashima S, Soda H, Kinoshita A, Mukae H. 316P Phase II study of ramucirumab and docetaxel for platinum-resistance NSCLC patients with malignant pleural effusion: Analysis of pleural effusion control rate. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.345] [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: 12/07/2022] Open
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5
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Takemoto S, Fukuda M, Senju H, Nakatomi K, Sugasaki N, Ogata R, Tomono H, Suyama T, Shimada M, Akagi K, Hayashi F, Gyotoku H, Yamaguchi H, Nagashima S, Soda H, Kinoshita A, Mukae H. EP08.04-005 Phase II Study of Ramucirumab and Docetaxel for NSCLC Patients with Malignant Pleural Effusion. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.870] [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: 11/29/2022]
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Jubashi A, Yamaguchi D, Ogata R, Nagatsuma G, Hara Y, Tanaka Y, Yoshioka W, Hino N, Morisaki T, Ario K, Matsuoka Y, Taba M, Naito S, Tsunada S. A case of pancreatic endocrine carcinoma with a different clinical diagnosis before chemotherapy and pathological autopsy. Clin J Gastroenterol 2021; 15:237-243. [PMID: 34689312 DOI: 10.1007/s12328-021-01538-9] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 10/14/2021] [Indexed: 11/29/2022]
Abstract
We encountered a case of pancreatic neuroendocrine carcinoma (pNEC) diagnosed via pathological autopsy that was initially diagnosed clinically as G3 pancreatic neuroendocrine tumor (G3 pNET) and discussed the differences between these entities in the literature. A 76-year-old man was admitted to our department because of jaundice. Computed tomography revealed multiple round nodules in both lung fields, suggesting metastasis, and a mass lesion was detected in the head of the pancreas with poor contrast in the arterial phase and slight contrast enhancement in the equilibrium phase. Biopsy of the lungs and pancreas led to a diagnosis of multiple pulmonary metastases of G3 pNET. Because the lesions were unresectable, chemotherapy was administered. Treatment was started with everolimus for 5 weeks. However, the patient experienced severe loss of appetite and malaise, and the lung lesions progressed, prompting treatment discontinuation. Subsequently, the patient's disease progressed rapidly, and he died 99 days after the start of chemotherapy. We performed a pathological autopsy with the consent of the family because of the rapid tumor growth. A pathological autopsy revealed a final diagnosis of pNEC, which differed from the clinical diagnosis.
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Affiliation(s)
- Amane Jubashi
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan.,Department of Gastroenterology and Hepatology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Daisuke Yamaguchi
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan. .,Division of Gastroenterology, Department of Internal Medicine, Saga University, Saga, 849-8501, Japan.
| | - Ryo Ogata
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Goshi Nagatsuma
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Yumi Hara
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Yuichiro Tanaka
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Wataru Yoshioka
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Naoyuki Hino
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Tomohito Morisaki
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Keisuke Ario
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Yuki Matsuoka
- Department of Pathology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Mitsuru Taba
- Department of Pathology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Shinji Naito
- Department of Pathology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
| | - Seiji Tsunada
- Department of Gastroenterology, National Hospital Organization Ureshino Medical Center, Ureshino, Japan
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Kurebayashi J, Kishino E, Ogata R, Saitoh W, Koike Y, Ohta Y, Kanomata N, Moriya T. Effects of long-term hypoxia and/or endocrine manipulation on endocrine sensitivity in MCF-7 cells. Breast 2019. [DOI: 10.1016/s0960-9776(19)30140-7] [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: 10/27/2022] Open
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Kusunose M, Hashimoto N, Kimura M, Ogata R, Aoyama D, Sakamoto K, Miyazaki S, Ando A, Omote N, Imaizumi K, Kawabe T, Hasegawa Y. β-catenin translocation to cytoplasm and nucleus. Cancer Sci 2015. [DOI: 10.1111/cas.12838] [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] Open
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9
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Kusunose M, Hashimoto N, Kimura M, Ogata R, Aoyama D, Sakamoto K, Miyazaki S, Ando A, Omote N, Imaizumi K, Kawabe T, Hasegawa Y. Direct regulation of transforming growth factor β-induced epithelial-mesenchymal transition by the protein phosphatase activity of unphosphorylated PTEN in lung cancer cells. Cancer Sci 2015; 106:1693-704. [PMID: 26450531 PMCID: PMC4714667 DOI: 10.1111/cas.12831] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/30/2015] [Accepted: 10/04/2015] [Indexed: 12/29/2022] Open
Abstract
Transforming growth factor β (TGFβ) causes the acquisition of epithelial-mesenchymal transition (EMT). Although the tumor suppressor gene PTEN (phosphatase and tensin homologue deleted from chromosome 10) can negatively regulate many signaling pathways activated by TGFβ, hyperactivation of these signaling pathways is observed in lung cancer cells. We recently showed that PTEN might be subject to TGFβ-induced phosphorylation of its C-terminus, resulting in a loss of its enzyme activities; PTEN with an unphosphorylated C-terminus (PTEN4A), but not PTEN wild, inhibits TGFβ-induced EMT. Nevertheless, whether or not the blockade of TGFβ-induced EMT by the PTEN phosphatase activity might be attributed to the unphosphorylated PTEN C-terminus itself has not been fully determined. Furthermore, the lipid phosphatase activity of PTEN is well characterized, whereas the protein phosphatase activity has not been determined. By using lung cancer cells carrying PTEN domain deletions or point mutants, we investigated the role of PTEN protein phosphatase activities on TGFβ-induced EMT in lung cancer cells. The unphosphorylated PTEN C-terminus might not directly retain the phosphatase activities and repress TGFβ-induced EMT; the modification that keeps the PTEN C-terminus not phosphorylated might enable PTEN to retain the phosphatase activity. PTEN4A with G129E mutation, which lacks lipid phosphatase activity but retains protein phosphatase activity, repressed TGFβ-induced EMT. Furthermore, the protein phosphatase activity of PTEN4A depended on an essential association between the C2 and phosphatase domains. These data suggest that the protein phosphatase activity of PTEN with an unphosphorylated C-terminus might be a therapeutic target to negatively regulate TGFβ-induced EMT in lung cancer cells.
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Affiliation(s)
- Masaaki Kusunose
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Naozumi Hashimoto
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Motohiro Kimura
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Ryo Ogata
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Daisuke Aoyama
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Koji Sakamoto
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Shinichi Miyazaki
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Akira Ando
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Norihito Omote
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Kazuyoshi Imaizumi
- Department of Respiratory Medicine and AllergyFujita Health UniversityToyoakeJapan
| | - Tsutomu Kawabe
- Department of Pathophysiological Laboratory SciencesNagoya University Graduate School of MedicineNagoyaJapan
| | - Yoshinori Hasegawa
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
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Ikeda S, Sekine A, Kato T, Yoshida M, Ogata R, Baba T, Nagahama K, Okudela K, Ogura T. Diffuse alveolar hemorrhage as a fatal adverse effect of bevacizumab: an autopsy case. Jpn J Clin Oncol 2014; 44:497-500. [PMID: 24683198 DOI: 10.1093/jjco/hyu023] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
A 71-year-old female with Stage IIIB primary adenocarcinoma was administered a three-drug combination therapy consisting of docetaxel, cisplatin and bevacizumab as a first-line treatment based on the Phase II clinical trial. On the 32nd day after the fourth course of chemotherapy, the patient developed bloody sputum. She was found dead at home on the 34th day. Autopsy revealed a diffuse alveolar hemorrhage without diffuse alveolar damage. Endothelial cells of the small arteries and capillaries were swollen and desquamated, indicating that alveolar capillaries were injured. The similar pathological changes in blood vessels were also observed in the kidney and the digestive tract. Because diffuse alveolar hemorrhage caused by cisplatin and docetaxel has never been reported apart from interstitial pneumonitis, bevacizumab is the most suspicious drug for diffuse alveolar hemorrhage in our case. Chest physicians and oncologists should be aware that although it is very rare, diffuse alveolar hemorrhage can develop during any course of chemotherapy with bevacizumab.
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Affiliation(s)
- Satoshi Ikeda
- *Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center, Tomioka-Higashi 6-16-1, Kanazawa-ku, Yokohama, Japan.
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Johno H, Ogata R, Nakajima S, Hiramatsu N, Kobayashi T, Hara H, Kitamura M. Acidic stress-ER stress axis for blunted activation of NF- B in mesothelial cells exposed to peritoneal dialysis fluid. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu009] [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: 11/12/2022] Open
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Aoyama D, Hashimoto N, Sakamoto K, Kohnoh T, Kusunose M, Kimura M, Ogata R, Imaizumi K, Kawabe T, Hasegawa Y. Involvement of TGFβ-induced phosphorylation of the PTEN C-terminus on TGFβ-induced acquisition of malignant phenotypes in lung cancer cells. PLoS One 2013; 8:e81133. [PMID: 24278390 PMCID: PMC3838341 DOI: 10.1371/journal.pone.0081133] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2013] [Accepted: 10/18/2013] [Indexed: 01/09/2023] Open
Abstract
Transforming growth factor β (TGFβ) derived from the tumor microenvironment induces malignant phenotypes such as epithelial-mesenchymal transition (EMT) and aberrant cell motility in lung cancers. TGFβ-induced translocation of β-catenin from E-cadherin complexes into the cytoplasm is involved in the transcription of EMT target genes. PTEN (phosphatase and tensin homologue deleted from chromosome 10) is known to exert phosphatase activity by binding to E-cadherin complexes via β-catenin, and recent studies suggest that phosphorylation of the PTEN C-terminus tail might cause loss of this PTEN phosphatase activity. However, whether TGFβ can modulate both β-catenin translocation and PTEN phosphatase activity via phosphorylation of the PTEN C-terminus remains elusive. Furthermore, the role of phosphorylation of the PTEN C-terminus in TGFβ-induced malignant phenotypes has not been evaluated. To investigate whether modulation of phosphorylation of the PTEN C-terminus can regulate malignant phenotypes, here we established lung cancer cells expressing PTEN protein with mutation of phosphorylation sites in the PTEN C-terminus (PTEN4A). We found that TGFβ stimulation yielded a two-fold increase in the phosphorylated -PTEN/PTEN ratio. Expression of PTEN4A repressed TGFβ-induced EMT and cell motility even after snail expression. Our data showed that PTEN4A might repress EMT through complete blockade of β-catenin translocation into the cytoplasm, besides the inhibitory effect of PTEN4A on TGFβ-induced activation of smad-independent signaling pathways. In a xenograft model, the tumor growth ratio was repressed in cells expressing PTEN4A. Taken together, these data suggest that phosphorylation sites in the PTEN C-terminus might be a therapeutic target for TGFβ-induced malignant phenotypes in lung cancer cells.
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Affiliation(s)
- Daisuke Aoyama
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
- * E-mail:
| | - Koji Sakamoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Kohnoh
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaaki Kusunose
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Motohiro Kimura
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ryo Ogata
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuyoshi Imaizumi
- Department of Respiratory Medicine and Allergy, Fujita Health University, Toyoake, Japan
| | - Tsutomu Kawabe
- Department of Medical Technology, Nagoya University Graduate School of Health Science, Nagoya, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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13
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Martins AMCRPF, Bersano JG, Ogata R, Amante G, Nastari BDB, Catroxo MHB. Diagnosis to Detect Porcine Transmissible Gastroenteritis Virus (TGEV) by Optical and Transmission Electron Microscopy Techniques. INT J MORPHOL 2013. [DOI: 10.4067/s0717-95022013000200059] [Citation(s) in RCA: 12] [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: 11/17/2022]
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14
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Kato T, Yamaguchi O, Yoshida M, Fukushima H, Ogata R, Nakazawa A, Oda T, Okuda R, Ikeda S, Takasa A, Tsuchiya N, Enomoto T, Baba T, Kitamura H, Shinohara T, Nishihira R, Komatsu S, Hagiwara E, Ogura T. The effect on patients with pulmonary fibrosis (PF) and advanced non small cell lung cancer (NSCLC): A prospective, feasibility study of S-1 and carboplatin. J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.e19583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e19583 Background: PF is commonly concomitant disorder with lung cancer. Because PF sometimes deteriorates and results unfavorable clinical course, patients with PF are excluded from most cancer clinical trials. S-1 is a novel active oral fluoropyrimidine anticancer agent consisting of tegafur, gimeracil and oteracil potassium. Although most anti-cancer agent have pulmonary toxicity, post marketing surveillance reported S-1 has lower pulmonary toxicity incidence. We have conducted feasibility study of S-1 and carboplatin combination for patients with advanced or ineligible for other treatment modality of NSCLC patients. Methods: Patients with histologically or cytologically confirmed NSCLC, clinically diagnosed pulmonary fibrosis, aged 80 years old or younger, performance status 0-2 and chemo naive were eligible for the study. Carboplatin (AUC 5) was administered on day 1 and S-1 (80mg/m2/day) on day 1 to 14 for four to six cycles. Endpoints were response rate, common safety profiles and effect to PF. Results: From March 2009 to December 2011, 21 pts (19 males/ 2 females, median age 67 years old, ranged 55 to 77, 10 adenocarcinoma, 10 squamous, 1 adenosquamous, stage IIA: 1, IIIA: 3, IIIB: 9, IV: 4, recurrence: 4) were enrolled. All patients had moderate or severe PF. Treatment delivery; 1 cycle: 3pts, 2: 3pts, 3: 3pts, 4: 10pts, 5; 1pts, 6: 1pts. Partial responses were observed in 7 patients (RR; 33%). The median progression free survival duration was 4.0 months and the median overall survival duration in 10.4 months. During the treatment, 2 patient experienced moderate deterioration of pulmonary fibrosis, 1 experienced infectious pneumonia, all three patients recovered from the event. There was no treatment related death. Besides pulmonary toxicity, most common adverse events were myelotoxicities. Conclusions: This is the first trial of S-1 and carboplatin combination for patients with PF and NSCLC. The study revealed S-1 and carboplatin combination was feasible and active even in patients with PF and NSCLC who are usually excluded from cancer clinical trials.
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Affiliation(s)
- Terufumi Kato
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Ou Yamaguchi
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | | | | | - Ryo Ogata
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | | | - Tsuneyuki Oda
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Ryo Okuda
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Satoshi Ikeda
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Akiyuki Takasa
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Noriko Tsuchiya
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | | | - Tomohisa Baba
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Hideya Kitamura
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | | | | | - Shigeru Komatsu
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Eri Hagiwara
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
| | - Takashi Ogura
- Kanagawa Cardiovascular and Respiratory Center, Yokohama, Japan
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15
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Ogata R, Suzuki S, Ahn JK, Akune Y, Baranov V, Chen KF, Comfort J, Doroshenko M, Fujioka Y, Hsiung YB, Inagaki T, Ishibashi S, Ishihara N, Ishii H, Iwai E, Iwata T, Kato I, Kobayashi S, Komatsu S, Komatsubara TK, Kurilin AS, Kuzmin E, Lednev A, Lee HS, Lee SY, Lim GY, Ma J, Matsumura T, Moisseenko A, Morii H, Morimoto T, Nakajima Y, Nakano T, Nanjo H, Nishi N, Nix J, Nomura T, Nomachi M, Okuno H, Omata K, Perdue GN, Perov S, Podolsky S, Porokhovoy S, Sakashita K, Sasaki T, Sasao N, Sato H, Sato T, Sekimoto M, Shimogawa T, Shinkawa T, Stepanenko Y, Sugaya Y, Sugiyama A, Sumida T, Tajima Y, Takita S, Tsamalaidze Z, Tsukamoto T, Tung YC, Wah YW, Watanabe H, Wu ML, Yamaga M, Yamanaka T, Yoshida HY, Yoshimura Y, Zheng Y. Study of theKL0→π0π0νν¯decay. Int J Clin Exp Med 2011. [DOI: 10.1103/physrevd.84.052009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Ogata R, Tanio Y, Takashima J, Kato Y, Arizumi T, Takada R, Tabata Y, Shimazu K, Fushimi H. [Retrospective analysis of immediate cause of death in lung cancer-two case reports of lung cancer deaths due to bowel necrosis]. Gan To Kagaku Ryoho 2011; 38:987-990. [PMID: 21677492] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The immediate cause of death of 313 patients who died of lung cancer during 5 years in this center was analyzed. The specific, immediate causes of the 313 deaths were respiratory failure 34. 8%, pneumonia 19. 0%, cachexia 12. 0%, and brain metastasis 8. 3%. Digestive organ disease deaths were 7. 0%(22 patients), being the 5th-ranking immediate cause of death. Of these 22 cases, hepatic insufficiency death by liver metastasis was in 10 out of 22 cases, and gastrointestinal bleeding was in 8 cases. Two patients died of intestinal tract necrosis, but the direct causal relationship between the cause of death and the tumor was unconfirmed from the autopsy result. However, we speculated that an elderly, tumor-bearing condition combined with chemotherapy led to prolonged immobility, a poor nutritional state, and rapid weight loss, which could be influential on the bowel necrosis.
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Affiliation(s)
- Ryo Ogata
- Dept. of Internal Medicine & Respiratory Medicine, Osaka General Medical Center
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17
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Ogata R, Hagiwara E, Shiihara J, Ogura T, Takahashi H, Kamei K. [A case of lung scedosporiosis successfully treated with monitoring of plasma voriconazole concentration level]. Nihon Kokyuki Gakkai Zasshi 2011; 49:388-392. [PMID: 21688649] [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: 05/30/2023]
Abstract
A 71-year-old man was referred because of fever and productive cough. His chest radiograph showed a large cavitary mass with an intracavitary mycetoma-like lesion in the left middle lung field. We undertook bronchoscopy and CT-guided biopsy, and both bronchial lavage fluid culture and CT-guided biopsy culture revealed Scedosporium apiospermum. On a diagnosis of lung scedosporiosis, he was treated with 200 mg/day voriconazole for 2 months, but his symptoms did not improve. Measurement of the plasma voriconazole level showed low plasma concentration levels (peak level: 2.15 microg/ml, trough level: 0.72 microg/ml). We then increased the voriconazole dosage from 200 mg/day to 400 mg/day. After that, his symptoms and chest radiograph findings improved immediately, accompanied by an elevated plasma voriconazole level (peak level: 5.13 microg/ml, trough level: 3.13 microg/ml). We believe that measurement of plasma voriconazole levels is useful to determine its dosage in lung scedosporiosis.
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Affiliation(s)
- Ryo Ogata
- Department of Respiratory Medicine, Kanagawa Cardiovascular and Respiratory Center
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18
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Tung YC, Hsiung YB, Ahn JK, Akune Y, Baranov V, Chen KF, Comfort J, Doroshenko M, Fujioka Y, Inagaki T, Ishibashi S, Ishihara N, Ishii H, Iwai E, Iwata T, Kato I, Kobayashi S, Komatsu S, Komatsubara TK, Kurilin AS, Kuzmin E, Lednev A, Lee HS, Lee SY, Lim GY, Ma J, Matsumura T, Moisseenko A, Morii H, Morimoto T, Nakajima Y, Nakano T, Nanjo H, Nishi N, Nix J, Nomura T, Nomachi M, Ogata R, Okuno H, Omata K, Perdue GN, Perov S, Podolsky S, Porokhovoy S, Sakashita K, Sasaki T, Sasao N, Sato H, Sato T, Sekimoto M, Shimogawa T, Shinkawa T, Stepanenko Y, Sugaya Y, Sugiyama A, Sumida T, Suzuki S, Tajima Y, Takita S, Tsamalaidze Z, Tsukamoto T, Wah Y, Watanabe H, Wu ML, Yamaga M, Yamanaka T, Yoshida HY, Yoshimura Y, Zheng Y. Search for the decayKL0→3γ. Int J Clin Exp Med 2011. [DOI: 10.1103/physrevd.83.031101] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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19
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Ahn JK, Akune Y, Baranov V, Chen KF, Comfort J, Doroshenko M, Fujioka Y, Hsiung YB, Inagaki T, Ishibashi S, Ishihara N, Ishii H, Iwai E, Iwata T, Kato I, Kobayashi S, Komatsu S, Komatsubara TK, Kurilin AS, Kuzmin E, Lednev A, Lee HS, Lee SY, Lim GY, Ma J, Matsumura T, Moisseenko A, Morii H, Morimoto T, Nakajima Y, Nakano T, Nanjo H, Nishi N, Nix J, Nomura T, Nomachi M, Ogata R, Okuno H, Omata K, Perdue GN, Perov S, Podolsky S, Porokhovoy S, Sakashita K, Sasaki T, Sasao N, Sato H, Sato T, Sekimoto M, Shimogawa T, Shinkawa T, Stepanenko Y, Sugaya Y, Sugiyama A, Sumida T, Suzuki S, Tajima Y, Takita S, Tsamalaidze Z, Tsukamoto T, Tung YC, Wah YW, Watanabe H, Wu ML, Yamaga M, Yamanaka T, Yoshida HY, Yoshimura Y, Zheng Y. Experimental study of the decayKL0→π0νν¯. Int J Clin Exp Med 2010. [DOI: 10.1103/physrevd.81.072004] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Tung YC, Hsiung YB, Wu ML, Chen KF, Ahn JK, Akune Y, Baranov V, Comfort J, Doroshenko M, Fujioka Y, Inagaki T, Ishibashi S, Ishihara N, Ishii H, Iwai E, Iwata T, Kato I, Kobayashi S, Komatsubara TK, Kurilin AS, Kuzmin E, Lednev A, Lee HS, Lee SY, Lim GY, Ma J, Matsumura T, Moisseenko A, Morii H, Morimoto T, Nakano T, Nanjo H, Nix J, Nomura T, Nomachi M, Ogata R, Okuno H, Omata K, Perdue GN, Podolsky S, Sakashita K, Sasaki T, Sasao N, Sato H, Sato T, Sekimoto M, Shinkawa T, Sugaya Y, Sugiyama A, Sumida T, Suzuki S, Tajima Y, Takita S, Tsamalaidze Z, Tsukamoto T, Wah Y, Watanabe H, Yamaga M, Yamanaka T, Yoshida HY, Yoshimura Y, Zheng Y. Search for a light pseudoscalar particle in the decay K_{L};{0}-->pi;{0}pi;{0}X. Phys Rev Lett 2009; 102:051802. [PMID: 19257503 DOI: 10.1103/physrevlett.102.051802] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2008] [Indexed: 05/27/2023]
Abstract
We performed a search for a light pseudoscalar particle X in the decay K_{L};{0}-->pi;{0}pi;{0}X, X-->gammagamma with the E391a detector at KEK. Such a particle with a mass of 214.3 MeV/c;{2} was suggested by the HyperCP experiment. We found no evidence for X and set an upper limit on the product branching ratio for K_{L};{0}-->pi;{0}pi;{0}X, X-->gammagamma of 2.4x10;{-7} at the 90% confidence level. Upper limits on the branching ratios in the mass region of X from 194.3 to 219.3 MeV/c;{2} are also presented.
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Affiliation(s)
- Y C Tung
- Department of Physics, National Taiwan University, Taipei, Taiwan
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21
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Omura M, Ogata R, Kubo K, Shimasaki Y, Aou S, Oshima Y, Tanaka A, Hirata M, Makita Y, Inoue N. Two-generation reproductive toxicity study of tributyltin chloride in male rats. Toxicol Sci 2001; 64:224-32. [PMID: 11719705 DOI: 10.1093/toxsci/64.2.224] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A 2-generation reproductive toxicity study of tributyltin chloride (TBTCl) was conducted in male rats using dietary concentrations of 5, 25, and 125 ppm TBTCl to evaluate its effect on sexual development and the reproductive system. F1 males were killed on postnatal day 119 and F2 males were killed on postnatal day 91. TBTCl affected the male reproductive system of rats. The weights of the testis and epididymis were decreased and homogenization-resistant spermatid and sperm count were reduced mainly in the 125 ppm TBTCl group. Histopathologic changes were also observed in the testis of this group and included vacuolization of the seminiferous epithelium, spermatid retention, and delayed spermiation. However, the changes were minimal in nature. The weight of the ventral prostate was decreased to 84% of the control value in the 125 ppm group in the F1 generation and decreased to 84 and 69% of the control value in the 25 ppm and 125 ppm TBTCl groups, respectively, in the F2 generation. The serum 17beta-estradiol concentration was also decreased to 55% of the control value in the 125 ppm group in the F1 generation and decreased to 78 and 57% of the control value in the 25 ppm and 125 ppm TBTCl groups, respectively, in the F2 generation. However, the serum concentrations of luteinizing hormone (LH) and testosterone were not decreased in these groups. These changes corresponded with those caused by aromatase inhibition and therefore TBTCl might be a weak aromatase inhibitor in male rats.
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Affiliation(s)
- M Omura
- Department of Hygiene, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-8582, Japan.
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Sakamoto M, Uen T, Nakamura T, Hashimoto O, Sakata R, Kin M, Ogata R, Kawaguch T, Torimura T, Sata M. Estrogen upregulates nitric oxide synthase expression in cultured rat hepatic sinusoidal endothelial cells. J Hepatol 2001; 34:858-64. [PMID: 11451169 DOI: 10.1016/s0168-8278(01)00023-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [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: 12/14/2022]
Abstract
BACKGROUND/AIMS Estrogen receptor (ER) is present in vascular endothelial cells and estrogen promotes nitric oxide (NO) synthesis, which relaxes smooth muscle cells. It is also speculated that NO is synthesized by estrogen in hepatic sinusoidal endothelial cells (SECs). Here we investigated the localization of ER and endothelial cell nitric oxide synthase (ecNOS), and determined 17beta-estradiol (E2)-induced ecNOS expression in normal rat SECs. METHODS Cultured SECs were used. Fluorescence intensities of ecNOS were measured by immunofluorescence using a confocal laser-scanning microscope. E2 was added (100 pg/ml) to the culture medium, and the expressions of ecNOS mRNA and protein were analyzed by reverse-transcription polymerase chain reaction and Western blotting. NO production in cultured SECs was examined using diaminofluorescein-2 diacetate as a fluorescent indicator for NO. RESULTS Immunolocalization of ER and ecNOS in normal liver was demonstrated in endothelial cells lining the hepatic sinusoids. ER and ecNOS were localized in the nuclei and cytoplasm of cultured SECs, respectively. The mRNA expression of ecNOS in cultured SECs was increased after 6 h, and the protein expression of ecNOS was increased 24 h after E2 stimulation. The fluorescence intensity of NO in cultured SECs was increased by E2 stimulation compared with untreated control cells. CONCLUSIONS These results suggested that ER is present in SECs, and estrogen upregulates NO production in SECs. E2 may be involved in the regulation of the hepatic sinusoidal microcirculation.
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Affiliation(s)
- M Sakamoto
- Second Department of Medicine, Kurume University School of Medicine, Japan
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Ogata R, Omura M, Shimasaki Y, Kubo K, Oshima Y, Aou S, Inoue N. Two-generation reproductive toxicity study of tributyltin chloride in female rats. J Toxicol Environ Health A 2001; 63:127-144. [PMID: 11393799 DOI: 10.1080/15287390151126469] [Citation(s) in RCA: 36] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
A two-generation reproductive toxicity study of the effects of tributyltin chloride (TBTCl) was conducted in female rats using dietary concentrations of 5, 25, and 125 ppm TBTCl. Reproductive outcomes of dams (number and body weight of pups and the percentage of live pups) and the growth of female pups (the day of eye opening and body weight gain) were significantly decreased in the 125 ppm TBTCl group. A delay in vaginal opening and impaired estrous cyclicity were also observed in the 125 ppm TBTCl group. However, an increase in anogenital distance was found in all TBTCl groups on postnatal d 1. A dose-effect relationship was observed in TBTCl-induced changes in anogenital distance. These results indicate that the whole-life exposure to TBTCl affects the sexual development and reproductive function of female rats. In addition, the TBTCl-induced increase in anogenital distance seems to suggest it may exert a masculinizing effect on female neonates. However, the concentrations of TBTCl used in this study are not environmentally relevant.
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Affiliation(s)
- R Ogata
- Department of Hygiene, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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24
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Kubo K, Arai O, Ogata R, Omura M, Hori T, Aou S. Exposure to bisphenol A during the fetal and suckling periods disrupts sexual differentiation of the locus coeruleus and of behavior in the rat. Neurosci Lett 2001; 304:73-6. [PMID: 11335058 DOI: 10.1016/s0304-3940(01)01760-8] [Citation(s) in RCA: 132] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
This study tested the effect of exposure to bisphenol A (BPA) early in life on the sexual differentiation in the brain and behavior in Wistar rats. We administered BPA only to mother rats during pregnancy and lactation at a dosage of approximately 1.5 mg/kg per day far less than the no-observed-adverse-effect level (NOAEL; 50 mg/kg per day). Control female offspring showed a higher activity, a lower avoidance memory, and larger locus coeruleus than the male controls, while the BPA-exposed group did not show any sexual dimorphism. BPA did not affect the reproductive organs or sex hormones. Our results suggest that the current methods to determine the NOAEL of artificial industrial chemicals may not be sufficient to detect a disruption of the sexual differentiation in the brain.
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Affiliation(s)
- K Kubo
- Department of Integrative Physiology, Graduate School of Medical Sciences, Kyushu University 60, 812-8582, Fukuoka, Japan
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25
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Ogata R, Majima Y, Tateishi Y, Kuromatsu R, Shimauchi Y, Torimyra T, Tanaka M, Kumashiro R, Kojiro M, Sata M. Bright loop appearance; a characteristic ultrasonography sign of early hepatocellular carcinoma. Oncol Rep 2000; 7:1293-8. [PMID: 11032932 DOI: 10.3892/or.7.6.1293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Ultrasonography (US) and computed tomography (CT) are the most effective screening methodologies for hepatocellular carcinoma (HCC). In our US screening, 20% of small HCC nodules less than 20 mm in diameter were detected as hyperechoic tumors. Among these hyperechoic HCC nodules, we have often observed <bright loop appearance> (BL) which is defined as hypoechoic nodules in the hyperechoic tumor. In this study, we report that the BL is a sign of dedifferentiation of early stage of HCC with fatty change by US. From 1994 to 1998, we performed tumor targeting needle biopsy in 938 hepatic nodular lesions. Among them, 284 nodules <20 mm in diameter, histologically diagnosed as HCC, were studied. BL is defined as a hyperechoic tumor containing a hypoechoic nodule >4 mm in diameter by US. Among 284 nodules, well, moderately and poorly differentiated HCC were 183 (64.4%), 100 (35.2%) and 1 (0.4%), respectively. On US, hypoechoic, isoechoic, and hyperechoic nodules were 188 (66.2%), 32 (11.3%) and 64 (22.5%), respectively. Forty-seven nodules of 64 hyperechoic HCC nodules <20 mm in diameter, 47 nodules (73.4%) showed fatty changes. Of 64 hyperechoic HCC nodules, we recognized 22 nodules (34.4%) as BL. The proportion of BL type hyperechoic nodules increased with the tumor size. Two hyperechoic nodules followed by US changed to BL with tumor enlargement. Histologic examination of a resected HCC with BL showed that hyperechoic HCC nodule represented well-differentiated HCC with fatty change and inner hypoechoic lesion represented moderately differentiated HCC without fatty change. In US screening for HCC, BL was often observed in HCC nodules from 11 to 20 mm in diameter. Histologic examination revealed that BL of HCC on US was associated with tumor progression and indicated dedifferentiation showing moderately differentiated HCC in well-differentiated HCC with fatty change.
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Affiliation(s)
- R Ogata
- Second Department of Medicine, Kurume University School of Medicine, Kurume 830-0011, Japan
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26
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Omura M, Masuda Y, Hirata M, Tanaka A, Makita Y, Ogata R, Inoue N. Onset of spermatogenesis is accelerated by gestational administration of 1,2,3,4,6,7-hexachlorinated naphthalene in male rat offspring. Environ Health Perspect 2000; 108:539-544. [PMID: 10856028 PMCID: PMC1638139 DOI: 10.1289/ehp.00108539] [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] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We treated pregnant rats with 1 microg/kg body weight/day 1,2,3,4,6,7-hexachlorinated naphthalene (1,2,3,4,6,7-HxCN) on days 14-16 of gestation and examined the effects on the reproductive systems of their male offspring at various phases of sexual maturation. Sperm count in the cauda epididymidis did not change in 1,2,3,4,6, 7-HxCN-treated rats on postnatal day 89, the age of sexual maturity, but the sperm count in the cauda epididymidis did increase to approximately 180% of the control value on postnatal day 62. In addition, homogenization-resistant testicular spermatids increased to approximately 160% of the control value on postnatal day 48, and the percent of postmeiotic tubules increased to approximately 190% of the control value on postnatal day 31 in this group. These results indicate that the onset of spermatogenesis was accelerated in the 1,2,3,4,6,7-HxCN rats. Serum concentrations of luteinizing hormone (LH) and follicle-stimulating hormone (FSH) had already reached the maximum level on postnatal day 31 in the 1,2,3,4,6, 7-HxCN group, suggesting that the onset of LH and FSH secretions from the pituitary gland was also accelerated and that this endocrine disruption was the cause of early onset of spermatogenesis in this group. In the fat of 1,2,3,4,6,7-HxCN-treated dams, 5.75+/-2.81 ppb 1,2,3,4,6,7-HxCN was detected when offspring were weaned. This concentration was 5-10 times higher than that found in human adipose tissue.
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Affiliation(s)
- M Omura
- Department of Hygiene, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
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27
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Shimauchi Y, Tanaka M, Kuromatsu R, Ogata R, Tateishi Y, Itano S, Ono N, Yutani S, Nagamatsu H, Matsugaki S, Yamasaki S, Tanikawa K, Sata M. A simultaneous monitoring of Lens culinaris agglutinin A-reactive alpha-fetoprotein and des-gamma-carboxy prothrombin as an early diagnosis of hepatocellular carcinoma in the follow-up of cirrhotic patients. Oncol Rep 2000; 7:249-56. [PMID: 10671666 DOI: 10.3892/or.7.2.249] [Citation(s) in RCA: 25] [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: 11/06/2022] Open
Abstract
To elucidate the risk factors for developing hepatocellular carcinoma (HCC) during the follow-up of patients with liver cirrhosis (LC), outpatients with LC were examined periodically by means of serum biochemical assessments, ultrasonography, and computed tomography. Risk factors for HCC were statistically analyzed. We also examined an efficacy of Lens culinaris agglutinin A-reactive profiles of alpha-fetoprotein (AFP-L3%) and des-gamma-carboxy prothrombin (DCP) value using a highly sensitive DCP determination kit (ED036) for the early recognition of HCC. The AFP-L3% and the ED036 value were retrospectively determined with stored serum samples. HCC was diagnosed in 21 of the 78 patients with LC during the follow-up period (mean follow-up period: 42 months). The estimated cumulative incidence of HCC was 25% with 3 years and 48% with 5 years. The most significant risk factor for the development of HCC in LC patients was found to be the mean serum AFP concentration from the year before the HCC detection (p=0.02). At the time of the recognition of HCC, the positive rates of the tumor markers were: serum AFP concentration 14%, serum DCP value 5%, AFP-L3% was 33%, and that of ED036 43%. The positive rate in collaborative use of AFP-L3% and ED036 was 67%. The simultaneous determination of the AFP-L3% and the ED036 value was shown to be effective for the early detection of HCC.
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Affiliation(s)
- Y Shimauchi
- Second Department of Medicine, Kurume University School of Medicine, Kurume 830-0011, Japan
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Kin M, Torimura T, Ueno T, Nakamura T, Ogata R, Sakamoto M, Tamaki S, Sata M. Angiogenesis inhibitor TNP-470 suppresses the progression of experimentally-induced hepatocellular carcinoma in rats. Int J Oncol 2000; 16:375-82. [PMID: 10639583 DOI: 10.3892/ijo.16.2.375] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We evaluated the effects of angiogenesis inhibitor, TNP-470, on hepatocellular carcinoma (HCCs) induced by a choline-deficient L-amino acid defined (CDAA) diet in rats. Male Fisher 344 rats were fed CDAA for 68 weeks. Rats were treated by subcutaneous injection of TNP-470 (15 mg/kg) or saline (control) three times per week from 53 to 68 weeks. At the end of the experiment, we determined the frequency and size of HCCs and glutathione S-transferase placental form (GSTP)-positive lesions, histology of liver cirrhosis, liver function, and liver weight per body weight. We also determined, using histologic and immunohistochemical semiquantification analyses, the degree of vascularity, apoptosis and proliferation in HCC and adjacent tissues. Treatment with TNP-470 resulted in a reduction of the size and frequency of HCC compared to untreated rats. However, TNP-470 did not influence the histology of liver cirrhosis and liver function. The liver weight per body weight of TNP-470-treated rats was slightly heavier in comparison with that of the controls. Treatment with TNP-470 significantly reduced tumor vascularity relative to the controls. There were no significant differences in the Ki-67 labeling index of HCCs between TNP-470 treated and control rats. The frequency of apoptotic hepatoma cells in TNP-470-treated rats was higher than in control rats. Our results indicate that TNP-470 suppresses the progression of CDAA-induced HCCs in rats through inhibition of angiogenesis, and suggest that TNP-470 might be useful clinically for HCCs.
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Affiliation(s)
- M Kin
- The Second Department of Medicine, Kurume University School of Medicine, Kurume, Fukuoka 830-0011, Japan
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29
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Torimura T, Ueno T, Kin M, Ogata R, Inuzuka S, Sugawara H, Kurotatsu R, Shimada M, Yano H, Kojiro M, Tanikawa K, Sata M. Integrin alpha6beta1 plays a significant role in the attachment of hepatoma cells to laminin. J Hepatol 1999; 31:734-40. [PMID: 10551399 DOI: 10.1016/s0168-8278(99)80355-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [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: 12/12/2022]
Abstract
BACKGROUND/AIMS Tumor invasion and metastasis consist of a series of complex events. During this process, the ability of tumor cells to adhere to laminin, a major component of basement membranes, is required at various steps. The expression of laminin-binding integrins and the extent of tumor metastasis and progression appear to be related. In hepatocellular carcinoma, increased expression of laminin-binding integrins is observed. However, little is known concerning the possible functional interactions between laminin-binding integrins and laminin. Therefore, we investigated the participation of laminin-binding integrins in the attachment of hepatoma cells to laminin. METHODS Human hepatoma cell lines (KIM-1, KYN-1, 2) were used. We investigated the expression of integrin alpha1, alpha2, alpha3, alpha6, beta1, and beta4 subunits on hepatoma cells by immunocytochemical and flow cytometric analysis. Participation of these integrin subunits in the attachment of hepatoma cells to laminin was evaluated by an inhibition of cell adhesion assay. RESULTS Integrin alpha1, alpha2, alpha3, alpha6 and beta1 subunits were expressed at the marginal areas of hepatoma cells, while the integrin beta4 subunit was scarcely detected. Laminin promoted the attachment of hepatoma cells in a dose-dependent manner. Although anti-integrin alpha1, alpha2, beta3 and beta4 subunit antibodies did not inhibit cell attachment to laminin, anti-integrin alpha6 and beta1 subunit antibodies inhibited the attachment by 50% or more. CONCLUSIONS These findings indicate that integrin alpha6beta1 is very important in the attachment of hepatoma cells to laminin, suggesting the participation of this integrin in metastasis and invasion of hepatoma cells.
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Affiliation(s)
- T Torimura
- Second Department of Medicine and Research Center for Innovative Cancer Therapy, Kurume University School of Medicine, Japan
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30
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Inoue Y, Kamura T, Okuma A, Shigematsu T, Amada S, Ogata R, Koga M, Nozaki M, Nakano H. Efficacy of selective venous sampling to localize a small ovarian androgen-producing tumor. J Obstet Gynaecol Res 1999; 25:231-6. [PMID: 10540524 DOI: 10.1111/j.1447-0756.1999.tb01154.x] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Two cases of androgen-producing tumors, including a Sertoli-Leydig cell tumor in a woman of reproductive age and a Leydig cell tumor in a postmenopausal woman, are reported herein. In both cases, only selective venous sampling was able to detect the presence of the androgen-producing ovarian tumors.
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Affiliation(s)
- Y Inoue
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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31
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Nozaki M, Ogata R, Koera K, Hashimoto K, Nakano H. Changes in coagulation factors and fibrinolytic components of postmenopausal women receiving continuous hormone replacement therapy. Climacteric 1999; 2:124-30. [PMID: 11910665 DOI: 10.3109/13697139909025576] [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: 11/13/2022]
Abstract
OBJECTIVE The effect of hormone replacement therapy (HRT) on coagulation factors and fibrinolytic components in postmenopausal women was studied for 6 months to elucidate whether continuous HRT has an influence on thrombosis. METHODS One hundred and thirty-four postmenopausal women were divided into three groups according to treatment: 39 women who had undergone hysterectomy and oophorectomy received 0.625 mg/day of conjugated equine estrogen (CEE) continuously (CEE therapy), 48 postmenopausal women received both 0.625 mg/day of CEE and 2.5 mg/day of medroxyprogesterone acetate (MPA) continuously (CEE/MPA therapy) and 47 postmenopausal women received placebo as control. The following variables were measured before treatment as well as after 1, 3 and 6 months of treatment: factor VII activity, protein C activity, fibrinogen level, antithrombin III activity, plasminogen activator inhibitor-1 (PAI-1) level and the plasma concentration of tissue-type plasminogen activator (t-PA). RESULTS After 1 month of treatment, protein C activity increased by 9.6% and 11.4% of the initial value (p < 0.05), fibrinogen level decreased by 7.8% and 6.1% of the initial value (p < 0.05) and PAI-1 decreased by 19.4% and 14.3% of the initial value (p < 0.05) in the CEE therapy group and the CEE/MPA therapy group, respectively. Factor VII activity increased by 10.1% of the initial value (p < 0.05) in the CEE therapy group only. Antithrombin III and t-PA levels did not change throughout either treatment. CONCLUSION Except for an increase in factor VII activity in the case of continuous CEE therapy, continuous HRT had no unfavorable effects on either coagulation factors or fibrinolytic components.
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Affiliation(s)
- M Nozaki
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka 812-8582, Japan
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32
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Ishibashi A, Ogata R, Sakisaka S, Kumashiro R, Koga Y, Mitsuyama K, Kuromatsu R, Uchimura Y, Ijyuin H, Tanaka K, Iwao T, Ishii K, Sata M, Inoue Y, Kin Y, Oizumi K, Nishida H, Imaizumi T, Tanikawa K. Erythropoietic protoporphyria with fatal liver failure. J Gastroenterol 1999; 34:405-9. [PMID: 10433022 DOI: 10.1007/s005350050284] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A 33-year-old woman with a history of photosensitivity, persistent abdominal pain, and liver dysfunction was admitted to our department because of abdominal pain and progression of liver dysfunction. On admission, levels of protoporphyrin and coproporphyrin within erythrocytes were markedly increased. Autofluorescent erythrocytes were also detected, leading to a diagnosis of erythropoietic protoporphyria. A liver biopsy specimen revealed cirrhosis with dark brown granules filling hepatocytes, bile canaliculi, and bile ductules. Transfusion of washed erythrocytes, hemodialysis, and administration of cholestyramine and beta-carotene transiently improved levels of porphyrins and liver function. The patient died of rupture of esophageal varices followed by multiple organ failure. However, the treatments were believed to have extended survival.
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Affiliation(s)
- A Ishibashi
- Second Department of Medicine, Kurume University School of Medicine, Japan
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Ueno T, Sujaku K, Tamaki S, Ogata R, Kin M, Nakamura T, Sakamoto M, Torimura T, Mitsuyama K, Sakisaka S, Sata M, Tanikawa K. OK-432 treatment increases matrix metalloproteinase-9 production and improves dimethylnitrosamine-induced liver cirrhosis in rats. Int J Mol Med 1999; 3:497-503. [PMID: 10202181 DOI: 10.3892/ijmm.3.5.497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Kupffer cells are major matrix metalloproteinase-producing cells in the liver. The production of metalloproteinases in Kupffer cells may contribute to the improvement of liver fibrosis inducing liver cirrhosis. In this study, we examined the effect of the OK-432 (a biological response modifier) on the dimethylnitrosamine-induced liver cirrhosis in rats. Dimethylnitrosamine (10 microg/ml) was injected intraperitoneally into 20 male Wistar rats 3x/week for 4 weeks. For the subsequent 4 weeks, the animals were injected with saline (1 ml, 1x/week) (Group I, n=10) or OK-432 (1 Klinishe Einheit, 1x/week) (Group II, n=10). The control rats were injected with 1 ml saline for the initial 4 weeks and subsequent 4 weeks (Group III, n=10). The degree of hepatic fibrosis, the immunolocalization of type IV collagen, hyaluronic acid, and alpha-smooth muscle actin, and the mRNA expression by Northern blotting and the activity by gelatin zymography of metalloproteinase-9 were evaluated. Serum aminotransferase, hyaluronic acid, interleukin-1beta and tumor necrosis factor-alpha levels were measured. The deposition of á-smooth muscle actin and extracellular matrix containing type IV collagen and hyaluronic acid was markedly suppressed by OK-432. The mRNA expression and the activity of metalloproteinase-9 were markedly increased by OK-432. The serum aminotransferase and hyaluronic acid levels were decreased by OK-432. The serum interleukin-1 and tumor necrosis factor-alpha values were lower than the detectable limit in all samples from all three groups. These results indicate that OK-432 increased the production of metalloproteinase-9 and improved the rat dimethylnitrosamine-induced liver cirrhosis. OK-432 is suggested to be useful for the treatment of liver cirrhosis.
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Affiliation(s)
- T Ueno
- The 2nd Department of Medicine, Kurume University School of Medicine, Kurume 830-0011, Japan
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Ogata R, Torimura T, Kin M, Ueno T, Tateishi Y, Kuromatsu R, Shimauchi Y, Sakamoto M, Tamaki S, Sata M, Tanikawa K. Increased expression of membrane type 1 matrix metalloproteinase and matrix metalloproteinase-2 with tumor dedifferentiation in hepatocellular carcinomas. Hum Pathol 1999; 30:443-50. [PMID: 10208467 DOI: 10.1016/s0046-8177(99)90121-1] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.4] [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: 01/01/2023]
Abstract
Destruction of the extracellular matrices is required for tumor invasion and metastasis. Matrix metalloproteinase-2 degrades type IV collagen and laminin, major components of the basement membrane. Membrane type 1 matrix metalloproteinase activates the latent form of matrix metalloproteinase-2. We studied changes in membrane type 1 matrix metalloproteinase and matrix metalloproteinase-2 expression in relation to the tumor differentiation of hepatocellular carcinomas. Activity of matrix metalloproteinase-2 was also evaluated in hepatocellular carcinomas and noncancerous tissues. Overall, 37 hepatocellular carcinomas were studied. Expression of membrane type 1 matrix metalloproteinase and matrix metalloproteinase-2 was determined by either immunohistochemistry (n=37) or in situ hybridization (n=6). Changes in membrane type 1 matrix metalloproteinase and matrix metalloproteinase-2 expression were evaluated in relation to tumor differentiation. Gelatinolytic activities were analyzed by gelatin zymography (n=4). Membrane type 1 matrix metalloproteinase and matrix metalloproteinase-2 were detected in hepatoma cells and stromal cells. In addition, these matrix metalloproteinases were detected in the same hepatoma cells. Increased expression of membrane type 1 matrix metalloproteinase and matrix metalloproteinase-2 was associated with tumor dedifferentiation. The active form of matrix metalloproteinase-2 was more strongly expressed by hepatocellular carcinomas than by noncancerous tissues. These findings indicate that increased expression of membrane type 1 matrix metalloproteinase and matrix metalloproteinase-2 was associated with tumor dedifferentiation, suggesting that these matrix metalloproteinases are intimately involved in the invasion of hepatocellular carcinomas.
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Affiliation(s)
- R Ogata
- Second Department of Medicine, Kurume University School of Medicine, Japan
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35
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Ueno T, Hashimoto O, Sugawara H, Ogata R, Kusaba N, Torimura T, Sata M, Tanikawa K. Serum carboxy-terminal cross-linked telopeptide of type I collagen reflects bone metastasis in hepatocellular carcinoma. Int J Oncol 1998; 13:297-303. [PMID: 9664125 DOI: 10.3892/ijo.13.2.297] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Carboxy-terminal telopeptide of type I collagen (ICTP) is a degradation product of type I collagen. In this study, we investigated the usefulness of measuring the serum ICTP concentration for diagnosing and monitoring bone metastasis from hepatocellular carcinoma (HCC). The serum concentrations of ICTP, type I procollagen carboxy-terminal propeptide (PICP), type III procollagen aminoterminal propeptide (PIIIP), type IV collagen (Ty IV), type IV collagen 7S-domain (7S), and hyaluronic acid (HA) were measured in patients with liver cirrhosis, HCC with or HCC without bone metastasis, and in healthy controls. The diagnostic efficiency of the serum ICTP and fibrosis marker levels in the HCC patients with and without bone metastasis was evaluated using receiver operating characteristic curves. We also retrospectively examined the changes in the serum ICTP levels before and after bone metastasis in the HCC patients. The serum ICTP level was significantly higher in the HCC patients with bone metastasis than in the patients with other diseases and the healthy controls. The serum PICP, PIIIP, Ty IV, 7S and HA levels of the HCC patients with bone metastasis did not differ significantly from those of the patients without bone metastasis. The diagnostic efficiency for HCC with bone metastasis was 87% for ICTP, 51% for PICP, 65% for Ty IV, 55% for PIIIP and 51% for HA. During the follow-up, the changes in the serum ICTP values paralleled the behavior of bone metastasis. These results indicate that the measurement of serum ICTP concentration is useful for detecting and monitoring HCC patients with bone metastasis.
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Affiliation(s)
- T Ueno
- Second Department of Medicine, Kurume University School of Medicine, Kurume 830, Japan
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36
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Abstract
Type IV collagen and laminin, major components of the basement membrane, are involved in several biologic activities. In malignant tumors, cell-matrix interactions are very important for tumor invasion and metastasis. In hepatocellular carcinoma, these matrices are present around hepatoma cells. However, there is little known how these matrices influence on the behavior of hepatoma cells. In this study, we investigated the participation of type IV collagen and laminin in the motility, adhesion, and proliferation of hepatoma cells using three different human hepatoma cell lines (KYN-1, 2, 3). The production of type IV collagen and laminin was investigated by immunoelectron microscopy. The effects of type IV collagen and laminin on hepatoma cell migration, adhesion, and proliferation were evaluated by the haptotactic migration assay, phagokinetic track assay, an adhesion assay, and a 3H-thymidine incorporation assay. Immunoelectron microscopy showed the production of type IV collagen and laminin by hepatoma cells. Type IV collagen and laminin enhanced haptotactic migration, chemokinesis, adhesion, and thymidine incorporation by hepatoma cells. The combination of type IV collagen and laminin had the most pronounced effects on these biologic activities. These results indicate that type IV collagen and laminin promote hepatoma cell motility, adhesion, and proliferation in an autocrine manner, suggesting enhancement of invasion and metastasis of hepatoma cells by these basement membrane components in vivo.
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Affiliation(s)
- R Ogata
- Second Department of Medicine, Kurume University School of Medicine, Japan
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37
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Nozaki M, Hashimoto K, Inoue Y, Ogata R, Okuma A, Nakano H. Treatment of bone loss in oophorectomized women with a combination of ipriflavone and conjugated equine estrogen. Int J Gynaecol Obstet 1998; 62:69-75. [PMID: 9722129 DOI: 10.1016/s0020-7292(98)00068-x] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE We previously reported that 0.625 mg/day of conjugated equine estrogen (CEE) could not prevent acute bone loss in the first year after oophorectomy. The effect of additional administration of ipriflavone on bone mineral density (BMD) and biochemical indices of bone remodeling were studied to investigate whether concurrent use of CEE and ipriflavone prevent acute bone loss in the early stages following surgical menopause. METHODS One-hundred and sixteen oophorectomized women were randomly divided into four groups according to treatment; group 1: placebo, n = 30; group 2: CEE (0.625 mg/day), n = 29; group 3: ipriflavone (600 mg/day), n = 30; group 4: CEE (0.625 mg/day) plus ipriflavone (600 mg/day), n = 27. Vertebral BMD was measured using dual energy X-ray absorptiometry (DEXA) and two biochemical indices of bone metabolism, urinary pyridinoline (Pyr) and serum intact human osteocalcin (hOC), were also measured before, 24 weeks, and 48 weeks after initiation of treatment. RESULTS BMD was reduced 48 weeks after treatment by 6.1, 3.9 and 5.1% in groups 1-3, respectively, but by only 1.2% in group 4. Pyr decreased by 49.5, 32.0 and 41.5% in groups 2-4, respectively. hOC also decreased by 45.2 and 21.6% in groups 2 and 4, but increased by 40.5% in group 3, suggesting an inhibitory action of CEE and ipriflavone on the turnover of bone metabolism and stimulatory action of ipriflavone on bone formation. CONCLUSION Concomitant use of ipriflavone with CEE from an early stage after oophorectomy inhibited bone loss and was considered to be effective in maintaining bone mass after oophorectomy.
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Affiliation(s)
- M Nozaki
- Department of Gynecology and Obstetrics, Kyushu University, Fukuoka, Japan
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38
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Ono N, Ijuin H, Ono N, Tateishi Y, Ogata R, Kuromatsu R, Itano S, Sata M, Tanikawa K. [The diagnosis of the early stage of hepatocellular carcinoma by US-angiography with intraarterial Albunex (sonicated serum albumin) infusion]. Nihon Rinsho 1998; 56:956-60. [PMID: 9577616] [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: 02/07/2023]
Abstract
Contrast-enhanced ultrasonography (arterial infusion) has been clinically established as a qualitative diagnosis imaging tool for hepatocellular carcinoma (HCC). Contrast-enhanced ultrasonography (CEUS) was performed after of Albunex (sonicated serum albumin) or Carbon Dioxide (CO2) microbubble by hand, into the hepatic artery as a diagnostic modality for the early HCC. Here, we discussed the diagnosis of the early HCC by CEUS using Albunex as a contrast medium. Briefly, a diagnosis of the early HCC was made CEUS examination of the hemodynamics of the arteries showed a hypovascular pattern. And tumor size was under 20 mm in diameter, the histopathologic examination was essential to reach a final diagnosis, well-differentiated HCC.
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Affiliation(s)
- N Ono
- Second Department of Internal Medicine, Kurume University School of Medicine
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39
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Nozaki M, Inoue Y, Hashimoto K, Ogata R, Nakano H. Differential time-related effects of conjugated equine estrogen on bone metabolism in oophorectomized women. Int J Gynaecol Obstet 1998; 60:41-6. [PMID: 9506413 DOI: 10.1016/s0020-7292(97)00235-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
OBJECTIVE The effects of conjugated equine estrogen (CEE) on bone mineral density (BMD) and biochemical indices of bone remodeling in oophorectomized women were studied for 3 years during estrogen replacement therapy (ERT) to investigate whether 0.625 mg/day of CEE alone prevent acute bone loss in the early stage of surgical menopause. METHODS We divided the subjects into three groups according to interval between oophorectomy and the start of ERT (group 1: less than 2 years after surgery, n = 31; group 2: 2-5 years after surgery, n = 29; and group 3: more than 5 years after surgery, n = 27). Vertebral BMD was measured using dual energy X-ray absorptiometry (DEXA). Two biochemical indices of bone metabolism, urinary deoxypyridinoline (DPyr) and serum intact human osteocalcin (hOC) were also measured. RESULTS In group 1, continuous ERT with 0.625 mg/day of CEE could not prevent a BMD decrease within the first year. However, by the end of the second year, BMD was restored to the pre-ERT. The same dosage of CEE significantly increased BMD in groups 2 and 3 by the end of the first year. DPyr and hOC levels both decreased dramatically in the initial 6 months of therapy and were stable thereafter. CONCLUSION In the initial 2-year period after oophorectomy, 0.625 mg/day of CEE alone could not prevent acute bone loss suggesting that additional therapy for the prevention of osteoporosis may be needed.
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Affiliation(s)
- M Nozaki
- Department of Gynecology and Obstetrics, Kyushu University, Fukuoka, Japan
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40
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Abstract
1. Effects on the pinacidil-induced outward current of inhibitors of tyrosine kinases and phosphatases were investigated by use of a patch-clamp method in smooth muscle cells of the rabbit portal vein. 2. A specific tyrosine kinase inhibitor, genistein, inhibited the pinacidil-induced current in a concentration-dependent manner with an IC50 of 5.5 microM. Superfusion of Ca2+-free solution did not affect this inhibitory effect of genistein. At higher concentrations, genistein inhibited the voltage-dependent Ba2+ and K+ currents with IC50 values of > 100 microM and 75 microM respectively. Tyrphostin B46 (30 microM), a tyrosine kinase inhibitor, also inhibited the pinacidil-induced current by 70% of the control. 3. Sodium orthovanadate (100 microM), an inhibitor of tyrosine phosphatase, slightly but significantly enhanced both the pinacidil-induced and delayed rectifier K+ currents. Daidzein (100 microM), an inactive analogue of genistein, did not inhibit these currents. 4. Neither herbimycin A (1 microM), lavendustin A (30 microM), tyrphostin 23 (10 microM), which are also tyrosine kinase inhibitors, nor wortmannin (10 microM), a phosphatidylinositol 3-kinase inhibitor, had an effect on either the pinacidil-induced or delayed rectifier K+ currents. Epidermal growth factor (EGF; 1 microg ml(-1)) did not induce an outward current or enhance the pinacidil-induced current. 5. Pinacidil alone, in the cell-attached configuration, or pinacidil with GDP, in the inside-out configuration, activated a 42 pS channel in the smooth muscle cells of the rabbit portal vein. Genistein (30 microM) reduced the channel's open probability without inducing a change in unitary conductance at any holding potential (-30 to +20 mV). 6. In the inside-out configuration, genistein at 30 microM did not change the mean channel open time, but reduced the burst duration. At 100 microM genistein abolished channel opening. The inhibitory potencies with which 30 and 100 microM genistein acted on the unitary current of the ATP-sensitive K+ channel were similar to those seen in the whole-cell voltage-clamp configuration. 7. Although direct inhibitory actions of genistein on the ATP-sensitive K+ channels are not ruled out, our results suggest that a protein tyrosine kinase may play a role in the regulation of ATP-sensitive K+ channel activity in the rabbit portal vein.
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Affiliation(s)
- R Ogata
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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41
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Abstract
The membrane current evoked by histamine in isolated smooth muscle cells from rabbit basilar artery was investigated using the perforated-patch technique. When 10 microM histamine was applied in the bath at a holding potential of -60 mV, an inward current (79.2 +/- 55.8 pA) was transiently activated. An outward current was additionally evoked by 10 microM histamine when the membrane was held at -40 mV or less negative potentials. The outward but not the inward current was completely blocked by 100 nM charybdotoxin. A higher concentration of histamine (30 microM) failed to produce the inward current (3.4 +/- 4.8 pA) when Cl- concentration in the pipette was reduced. The apparent reversal potential of the inward current induced by histamine in physiological salt solution, in high-tetraethylammonium (TEA+) solution (bath), or in low-Cl- solution (pipette) was -6.3 +/- 4.4, -7.5 +/- 4.9, or -45.8 +/- 8.5 mV, respectively. Niflumic acid (100 microM) reversibly blocked the inward current, which was also blocked by 10 microM pyrilamine but not by 10 microM cimetidine. When histamine was continuously applied in the bath, spontaneous transient inward currents were generated. Removal of external Ca2+ or addition of 1 microM nicardipine or 2 mM caffeine reduced the amplitude of the histamine-induced inward current. These results suggest that histamine induces an inward current via H1 receptors at the resting membrane potential, possibly due to activation of Cl- currents. The Cl- inward current might be generated by elevation of intracellular Ca2+ via histamine receptors. The inward current may also contribute to control of the Ca2+ influx via a change in the membrane potential.
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Affiliation(s)
- M Kamouchi
- Second Department of Internal Medicine, Faculty of Medicine, Kyushu University, Fukuoka, Japan
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42
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Hashimoto K, Ogata R, Nozaki M, Inoue Y, Sano M, Nakano H. P104 Estradiol relaxes the rabbit basilar artery through voltage-dependent Ca channels. Maturitas 1996. [DOI: 10.1016/s0378-5122(97)81295-9] [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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Ogata R, Nozaki M, Inoue Y, Hashimoto K, Sano M, Nakano H. P103 Estradiol inhibits the voltage-dependent Ca channels of the rabbit basilar artery through GTP-binding protein. Maturitas 1996. [DOI: 10.1016/s0378-5122(97)81296-0] [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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44
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Teramoto N, Ogata R, Okabe K, Kameyama A, Kameyama M, Watanabe TX, Kuriyama H, Kitamura K. Effects of calciseptine on unitary barium channel currents in guinea-pig portal vein. Pflugers Arch 1996; 432:462-70. [PMID: 8766006 DOI: 10.1007/s004240050158] [Citation(s) in RCA: 15] [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: 02/02/2023]
Abstract
Effects of synthesized calciseptine (CaS), found naturally in the venom of the black mamba, on voltage-dependent Ca2+ channels in smooth muscle cells of the guinea-pig portal vein were investigated. In the whole-cell voltage-clamp configuration, extracellular application of CaS (>/= 10 nM) inhibited the inward current in a concentration- and voltage-dependent manner at a holding potential of -90 mV. The Ca2+ current recorded at a high holding potential (-50 mV) was approximately 8 times more sensitive to CaS than that at a more negative holding potential (-90 mV). CaS (50 nM) shifted to the left the steady-state inactivation curve obtained by using single 8-s conditioning pulses of various amplitudes. When CaS (>/= 200 nM) was present in the pipette, the Ca2+ current remained for the duration of the experiments (more than 60 min) in the whole-cell configuration. Two different Ca2+ channel conductances are present in this tissue (25-pS and 12-pS channels). Both channels are blocked by dihydropyridine (DHP) derivatives, but have different sensitivities. In the cell-attached condition, CaS hardly changed the activity of either unitary Ca2+ channel current. To prevent the "run down" of the Ca2+ channels in cell-free conditions, we added cardiac cytosol, a supernatant from homogenized cardiac cells and an endogenous Ca2+ channel activating factor, in the pipette. The unitary Ca2+ channel currents were then recorded using the outside-out membrane patch configuration. Application of CaS (1 microM) in the bath completely blocked the open events of the 25-pS Ca2+ channel. CaS (10 nM) in the bath reduced the mean open time and channel availability, resulting in a decrease in the open probability of the 25-pS channel currents without affecting the amplitude of the single-channel conductance. CaS also reduced the open probability (though less potently) and channel availability of the 12-pS Ca2+ channel without a change in its amplitude. From these results, we conclude that CaS has inhibitory effects on the voltage-dependent Ca2+ current that are similar to those of DHP derivatives and that it acts from the outside of the membrane.
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Affiliation(s)
- N Teramoto
- Department of Pharmacology, Faculty of Medicine, Kyushu University, Fukuoka 812-82, Japan
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45
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Ogata R, Inoue Y, Nakano H, Ito Y, Kitamura K. Oestradiol-induced relaxation of rabbit basilar artery by inhibition of voltage-dependent Ca channels through GTP-binding protein. Br J Pharmacol 1996; 117:351-9. [PMID: 8789390 PMCID: PMC1909250 DOI: 10.1111/j.1476-5381.1996.tb15198.x] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.1] [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: 02/02/2023] Open
Abstract
1. Effects of oestradiol on the electrical and mechanical properties of the rabbit basilar artery were investigated by use of microelectrode, patch-clamp and isometric tension recording methods. 2. Oestradiol (10 nM-100 microM) relaxed arterial tissue pre-contracted by excess [K]o solution (30 mM) in a concentration-dependent manner. In Ca-free solution, histamine (10 microM) and caffeine (20 mM) each produced a phasic contraction, but oestradiol (10 microM) did not significantly affect their amplitude. 3. Oestradiol (< or = 100 microM) did not change the resting membrane potential of the artery whether in the presence or absence of TEA (10 mM). Action potentials observed in the presence of 10 mM TEA were abolished by oestradiol (100 microM). 4. Oestradiol (1 microM-100 microM) inhibited the voltage-dependent Ba current in a concentration-dependent manner. Oestradiol (100 microM) inhibited the Ba current observed in the presence of nicardipine (1 microM) more than that in the absence of nicardipine (to 31.0% vs 62.0% of control). 5. GTP gamma S (30 microM) in the pipette enhanced the inhibitory actions of oestradiol on the Ba current. On the other hand, with GDP beta S (1 mM) in the pipette, oestradiol failed to inhibit the Ba current. Pertussis toxin (PTX 3 micrograms ml-1) in the pipette totally prevented the inhibitory action of oestradiol on the Ba current. 6. Oestradiol (< or = 100 microM) had no significant effect on the outward K currents evoked by a membrane depolarization. 7. These results strongly suggest that oestradiol relaxes arterial tissue by inhibition of voltage-dependent Ca channels and that it inhibits both nicardipine-sensitive and -resistant Ca currents via a PTX-sensitive GTP-binding protein. The main target of oestradiol among the arterial Ca channels seems to be the nicardipine-resistant Ca channel, rather than the nicardipine-sensitive one.
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Affiliation(s)
- R Ogata
- Department of Pharmacology, Kyushu University, Fukuoka, Japan
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46
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Kitamura K, Ogata R. [Ion channels of vascular smooth muscle and pharmacological effects of calcium antagonists and potassium channel openers]. Fukuoka Igaku Zasshi 1994; 85:309-13. [PMID: 7851831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- K Kitamura
- Department of Pharmacology, Faculty of Medicine, Kyushu University, Fukuoka
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47
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Nozaki M, Hashimoto K, Sumii Y, Ogata R, Yuuki H, Yokoyama M, Imura M, Sano M, Nakano H. [Changes in bone and lipid metabolisms following oophorectomy and effects of estrogen replacement therapy]. Nihon Sanka Fujinka Gakkai Zasshi 1993; 45:38-44. [PMID: 8382249] [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: 01/30/2023]
Abstract
The bone and lipid metabolisms in Japanese oophorectomized (OVX) women and effects of estrogen replacement therapy (ERT) were investigated. Three hundred and two OVX women (mean age of 41.6) and 164 premenopausal women (mean age of 42.1) were examined. BMD of the lumbar spine, serum Ca, P, Al-p, total cholesterol (T-C), HDL-C and LDL-C were measured every three months. BMD within 2 years after OVX was not significantly decreased. The mean BMD between 2 and 5 years or over 10 years after OVX was 0.83 (p < 0.01) and 0.69 (p < 0.001), respectively. Serum Ca and P were increased for 2 years and Al-p was increased for 10 years after OVX. To investigate the effect of ERT on BMD, OVX women were divided into 3 groups: ERT, VD3 and no treatment groups. After 12 months of treatment, the mean % BMD in each group was 102.9, 100.6 and 97.8, respectively. T-C or LDL-C was gradually increased in 10 years after OVX. After 15 months of ERT, the mean percentages HDL-C and LDL-C in hyperlipidemic women (LDL-C > or = 150) were 110.5 (p < 0.05) and 75.2 (p < 0.001). ERT may be requisite for OVX women and effective in preventing increased bone turnover and hyperlipidemism following OVX.
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Affiliation(s)
- M Nozaki
- Department of Gynecology and Obstetrics, Faculty of Medicine, Kyushu University, Fukuoka
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48
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Yamashiro H, Ogata R, Gotoh Y. [Early stellate ganglion block failed to prevent progress of facial nerve palsy in a patient with Ramsay-Hunt syndrome--a case report]. Masui 1991; 40:500-5. [PMID: 2072506] [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: 12/30/2022]
Abstract
A 73-year-old man complained of pain in his right ear with vesicular lesion for three days. He complained of no weakness of facial musculatures, but muscle test revealed slight weakness in orbital and oral muscles on admission. His hearing acuity of the left ear was intact. Vertigo with spontaneous nystagmus to left was complained. The patient was treated with stellate ganglion block four times a day, prednisolone 80 mg a day p.o. and acyclovir i.v. Mannitol solution 300 ml a day for eight days was given i.v. to reduce edema and to protect facial nerve. On his 3rd hospital day, his paralysis progressed and he could not close his eye or whistle with his mouth. Evoked myogram showed 91% impairment of the nerve. During recovery period there was discrepancy between facial palsy score of clinical signs and degree of nerve impairment by evoked myogram. On his 12th hospital day his facial nerve score improved 9 to 12 (0 complete paralysis, 40 no paralysis) but evoked myogram showed further progress of nerve impairment from 86% to 91% (Evoked wave heights were 14% and 9% of normal site respectively). The discrepancy is probably because facial palsy score reflects also neurapraxia of inflammatory nerve, and stellate ganglion block has no effect on changing course of facial nerve injury.
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Affiliation(s)
- H Yamashiro
- Department of Anesthesia, Hamamatsu Medical Center
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Takahashi Y, Nakamura H, Ogata R, Matsuda N, Hamada M, Naganawa H, Takita T, Iitaka Y, Sato K, Takeuchi T. Kijimicin, a polyether antibiotic. J Antibiot (Tokyo) 1990; 43:441-3. [PMID: 2351616 DOI: 10.7164/antibiotics.43.441] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Y Takahashi
- Institute of Microbial Chemistry, Tokyo, Japan
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50
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Yamashiro H, Ogata R, Kawahara K. [A complete relief of intractable postherpetic neuralgia with intrathecal methylprednisolone acetate]. Masui 1990; 39:106-10. [PMID: 2304244] [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: 12/31/2022]
Abstract
A 72-year-old man, 154 cm tall, weighing 53 kg was suffering from severe herpetic neuralgia on his left 10th intercostal nerve area. His pain continued even he was treated with frequent epidural nerve block (4 to 5 times per week) by an anesthesiologist. He was referred to our hospital on his 105th pain day. He complained severe continuous pain and numbness on his left 10th intercostal nerve area. Touching the painful skin induced lightning pain. His pain was so severe that his sleeping was disturbed and also he could not maintain his usual life. Epidural nerve block at 10th thoracic nerve was done with 20mg methylprednisolone acetate and 5ml of 1% lidocaine. After the treatment, his pain was reduced to 3/10 of the one he had on admission, and also his sleep was not disturbed further. Epidural nerve blocks with methylprednisolone weekly for a month induced no more remission. At his 154th pain day, a dose of 20mg methyl prednisolone acetate and 1% lidocaine 5ml was given intrathecally through 2nd lumber intervertebral space. The pain was relieved completely after the block. And he complained nothing about the skin area which had been disturbing his life for a long time. Auditory brainstem response which was recorded during the block showed prolongation of the latency of phase III and phase V at 40 minutes after the intrathecal injection of lidocaine.
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Affiliation(s)
- H Yamashiro
- Department of Anesthesia, Hamamatsu Medical Center
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